FIELD

This relates to a plumbing connector, assembly and method. In particular, this relates to a plumbing connector, a plumbing assembly including the plumbing connector and a flexible and/or expandable pipe section and to a method for making up the plumbing assembly.

BACKGROUND

Plumbing fittings are provided in a wide range of different forms, sizes and materials to suit different applications and regional variations in plumbing codes.

In the case of non-pressurised waste water plumbing assemblies for use with sinks, appliances and the like, making up the plumbing assembly may conventionally involve cutting sections of rigid pipe to the required length and connecting these using one or more plumbing fitting in the form of an angle connector, such as a 90 degree bend, 45 degree bend or the like.

More recently, plumbing assemblies using flexible pipe sections have been developed for use with such waste water fittings. However, while the use of plumbing assemblies using flexible pipe sections provides benefits over conventional assemblies in some instances, there remains a number of challenges.

For example, while the use of flexible pipe sections reduces or obviates the requirement for angle connectors and cutting pipe sections to size on site, making up of the assembly using flexible pipe sections can nevertheless involve significant time for the installer and thus costs for the customer.

In applications where restrictions on access make conventional angle connectors impractical or impossible, the use of a flexible pipe section has the advantage over conventional fittings in that the pipe may be adapted to the required shape. However, such connections still require access to make up the assembly, which due to the same restrictions on access noted above, may mean that the use of such assemblies using flexible pipe remains impractical or impossible.

Also, as with conventional angle connectors, plumbing assemblies using flexible pipe sections are subject to expansion and retraction, in use, due to thermal effects of fluid flow and/or environment, such that any inaccuracies in making up the assembly may result in a leak requiring remedial work at significant time and expense. SUMMARY

According to a first aspect, there is provided a plumbing connector for use in a plumbing assembly including a flexible pipe section, the plumbing connector comprising:

a connector body having an axial throughbore therethrough, the connector body comprising a first end portion configured for insertion into and for engaging an inside of a flexible pipe section and a second end portion for coupling to a second pipe section so as to connect the flexible pipe section to the second pipe section; and

a collar configured for location on the first end portion of the connector body, the collar configured to extend over and engage an outer surface of the flexible pipe section when the connector body is inserted into the flexible pipe section,

wherein the first end portion of the connector body comprises a retainer arrangement configured to engage the inside of the flexible pipe section to secure the connector body to the flexible pipe section and retain the collar to the connector body.

The plumbing connector may be configured so that, in use, the first end portion of the plumbing connector can be pushed into, and retained in, the flexible pipe section without the requirement for rotation between the plumbing connector and the flexible pipe section. It will be understood that the term flexible pipe section is used herein to refer to a pipe section which is adaptable in its shape and/or axial length. For example, the flexible pipe section may be adapted by the user to define a selected angle, shape or length. The assembled plumbing connector and flexible pipe section thus provide a plumbing assembly suitable for a waste connection, such as a non-pressurised waste connection for a basin, bath, appliance such as washing machine, dishwasher or the like.

Beneficially, the plumbing connector provides a compact, quick, reliable and secure connector for a plumbing assembly including a flexible pipe section which provides a number of advantages over conventional fittings. For example, the ability to engage both the inside and outside of the flexible pipe section provides for a secure connection with the flexible pipe section which, for example, is capable of resisting forces experienced during installation and/or in use due to expansion and/or contraction due to thermal effects, reducing the risk of inaccuracies in making up the assembly resulting in a leak requiring remedial work at significant time and expense. Moreover, the plumbing connector requires only push forces to make up the connection with the flexible pipe section, and thus does not require rotation of the connector body and/or the collar (or the flexible pipe section) to make up the connection with the flexible pipe section. This permits quick connections to be made in applications where restrictions on access would make rotational connections impractical, or would otherwise involve significant additional time and costs. The plumbing connector also permits a connection to be made without the need to cut sections of pipe on site or provide additional angle connectors, thereby having a smaller space requirement than conventional fittings.

As described above, the first end portion of the connector body comprises a retainer arrangement which is configured to engage the inside of the flexible pipe section to secure the connector body to the flexible pipe section.

The retainer arrangement may be configured to permit the flexible pipe section to pass over the retainer arrangement in a first axial direction but prevent or resist movement of the flexible pipe section in a second axial direction.

In use, on insertion of the first end portion of the connector body into the end of the flexible pipe section the retainer arrangement may permit the flexible pipe section to pass over the retainer arrangement in a first axial direction (that is, the direction which brings the flexible pipe section and the connector body together) but prevent or resist movement of the flexible pipe section in a second axial direction (that is, the direction moving the connector body and the flexible pipe section apart).

Beneficially, the retainer arrangement may be configured to engage the inside of the flexible pipe section without the requirement to rotate the connector body.

As described above, the retainer arrangement may be configured to retain the collar on the connector body.

The retainer arrangement may be configured to permit the collar to pass over the retainer arrangement in the first axial direction but prevent or resist movement of the collar in the second axial direction.

In use, on location of the collar on the first end portion of the connector body, the retainer arrangement may permit the collar to pass over the retainer arrangement in a first axial direction (that is, the direction which brings the collar and the connector body together) but prevent or resist movement of the collar in the second axial direction (that is, the direction moving the connector body and the collar apart).

The retainer arrangement may comprise a mechanical fastening arrangement.

The retainer arrangement may comprise a snap-fit retainer.

The retainer arrangement may comprise one or more ribs.

The one or more ribs may be integrally formed with the connector body. For example, the one or more ribs may be formed on an outer surface of the first end portion of the connector body. The one or more ribs may define a ramp or ratchet profile, permitting movement of the flexible pipe section and/or the collar in the first axial direction but preventing or resisting movement of the flexible pipe section and/or the collar in the second axial direction.

As described above, the collar is configured for location on the first end portion of the connector body, and is configured to extend over and engage an outer surface of the flexible pipe section when the connector body is inserted into the flexible pipe section.

The collar may comprise a base portion.

The base portion may comprise an aperture configured to permit the collar to be located over the first end portion of the connector body. For example, the aperture may be sized to permit the collar to be located over the first end portion of the connector body.

In particular embodiments, the aperture may have an inner diameter sized to provide an interference fit with the connector body, more particularly an interference fit with the retainer arrangement.

The collar may be annular. For example, the base portion of the collar may define a ring.

The collar may further comprise a wall portion extending from the base portion. In use, the wall portion may be configured to extend, that is may be disposed over, the outer surface of the flexible pipe section when the first end portion of the connector body is inserted into the inside of the flexible pipe section.

The wall portion may be configured to engage the outer surface of the flexible pipe section.

The engagement between the wall portion and the outer surface of the flexible pipe section may secure or further secure the connection between the collar and the flexible pipe section.

The inner dimension, e.g. diameter, defined by the wall portion may be sized to may secure or further secure the connection between the collar and the flexible pipe section. For example, the inner dimension, e.g. diameter, defined by the wall portion may be sized to provide an interference fit with the outer surface of the flexible pipe section. Alternatively, or additionally, the wall portion of the collar may be provided with a retainer arrangement to secure or further secure the connection between the collar and the flexible pipe section.

The retainer arrangement of the collar may comprise one or more ribs.

As described above, the connector body comprises a first end portion suitable for insertion into the end of the flexible pipe section.

The first end portion may define a male end portion of the connector body.

The first end portion may define a constant outer diameter. However, in particular embodiments the first end portion may comprise distinct sections having different outer diameters.

The first end portion may comprise a distal section.

The first end portion may comprise a proximal section.

An outer diameter of the proximal section may be greater than an outer diameter of the distal section.

The retainer arrangement for engaging the inside of the flexible pipe section may be disposed on the proximal section.

The first end portion may comprise a tapered section.

The tapered section may be interposed between the distal section and the proximal section.

The tapered section may define a ramp angle.

The ramp angle may secure or assist in securing the first end portion of the connector body to the inside of the flexible pipe section. In use, friction between the tapered section and the inside of the flexible pipe section on insertion of the first end portion into the flexible pipe section may secure or assist in securing the first end portion of the connector body to the inside of the flexible pipe section.

The first end portion of the connector body may define a constant inner diameter along its length. For example, in embodiments where the first end portion has distinct section having different outer diameters, the proximal section, distal section and tapered section may have the same inner diameter.

The first end portion may be configured to couple to a metric flexible pipe section e.g. having a diameter of 32 mm, 40 mm, 50 mm or 65 mm.

The first end portion may be configured to couple to a non-metric second pipe section e.g. having a diameter of 1 ¼ inch (31.75 mm), 1 ½ inch (38.1 mm) or 2 inch (50.8 mm). However, it will be recognised that the first end portion may be configured to couple to a flexible pipe section of any suitable configuration. As described above, the connector body comprises a second end portion for coupling to a second pipe section so as to connect the flexible pipe section to the second pipe section.

The second end portion may be configured to couple to a second pipe section of the same or substantially the same dimensions to the flexible pipe section.

For example, the second end portion may be configured to couple to a metric second pipe section, e.g. having a diameter of 32 mm, 40 mm, 50 mm or 65 mm.

Alternatively, the second end portion may be configured to couple to a nonmetric second pipe section e.g. having a diameter of 1 ¼ inch (31.75 mm), 1 ½ inch (38.1 mm) or 2 inch (50.8 mm).

The second portion may be configured to couple to a second pipe section of different dimensions to the flexible pipe section to which the first end portion is configured to couple.

For example, the first end portion may be configured to couple to a metric flexible pipe section having a given diameter and the second end portion may be configured to couple a metric second pipe section having a different diameter.

Alternatively, the first end portion may be configured to couple to a non-metric flexible pipe section having a given diameter and the second end portion may be configured to couple a non-metric second pipe section having a different diameter.

Alternatively, the first end portion may be configured to couple to a metric flexible pipe section having a given diameter and the second end portion may be configured to couple a non-metric second pipe section having a different diameter.

Alternatively, the first end portion may be configured to couple to a non-metric flexible pipe section having a given diameter and the second end portion may be configured to couple a metric second pipe section having a different diameter.

The given and different diameters above may comprise one or more of the dimensions described above, or another suitable diameter.

In some embodiments, the second end portion may define a female end portion.

The female end portion may be configured to receive an end portion of the second pipe section. The inner dimension, e.g. diameter, of the second end portion may be sized to receive the end of the second pipe section.

Alternatively, the second end portion may define a male end portion for insertion into the second pipe section. For example, in some instances the second pipe section may comprise a waste connection, such as a non-pressurised waste connection for a basin, bath, appliance such as washing machine, dishwasher or the like, and the second end portion may be coupled directly to the waste connection.

The second end portion may comprise a connector arrangement for securing the second end portion to the second pipe section.

The connector arrangement may comprise a threaded connector arrangement or the like. The connector arrangement may be disposed on the outer surface of the second end portion. The connector arrangement may be formed on the outer surface of the second end portion.

In particular embodiments, the connector arrangement may comprise a compression fitting or the like.

In such embodiments, the connector may further comprise a compression ring, or the like.

Alternatively, the connector arrangement may comprise a push fit connector.

For example, the connector arrangement may form an interference fit with the second pipe section.

The connector arrangement may be configured to engage and secure to a nut of the second pipe section.

In such embodiments, the connector may further comprise a compression ring, or the like.

The connector arrangement may be configured to directly engage and secure to the second pipe section.

The second end portion may define a seat for receiving the end of second pipe section.

The connector body may comprise a flange portion

The flange portion may be interposed between the first end portion and the second end portion of the connector body.

The flange portion may define the interface between the first end portion and the second end portion.

In use, the flange portion may form an end stop or shoulder for the collar.

In particular embodiments, the connector body is a unitary construction.

Alternatively, the connector body may comprise a plurality of components coupled together.

In particular embodiments, the collar is a unitary construction. Alternatively, the collar may comprise a plurality of components coupled together.

The plumbing connector may be formed as an assembly. For example, the collar and the connector body may be formed together as an assembly using an additive manufacturing process.

At least part of the plumbing connector may be constructed from a polymeric material, in particular but not exclusively polypropylene.

The connector body may be constructed from a polymeric material, in particular but not exclusively polypropylene.

The collar may be constructed from a polymeric material, in particular but not exclusively polypropylene.

The connector may comprise a sealing arrangement comprising one or more seal element, such as an o-ring seal element or the like.

According to a second aspect, there is provided a plumbing assembly comprising:

the plumbing connector according to the first aspect; and

a flexible pipe section.

As described above, the term flexible pipe section is used herein to refer to a pipe section which is adaptable in its shape and/or axial length. For example, the flexible pipe section may be adapted by the user to define a selected angle, shape or length. The assembled plumbing connector and flexible pipe section thus provide a plumbing assembly suitable for a waste connection, such as a non-pressurised waste connection for a basin, bath, appliance such as washing machine, dishwasher or the like.

The flexible pipe section may be expandable, that is the flexible pipe section may be configured so that its axial length can be increased. The flexible pipe section may be contractible, that is the flexible pipe section may be configured so that its axial length can be decreased.

The flexible pipe section may comprise a plurality of segments.

The segments may be coupled together or formed to permit one or more of the segments to be collapsed together to reduce the overall length of the flexible pipe section or vice-versa to be expanded/ moved apart to axially increase the overall length of the flexible pipe section. Alternatively or additionally, the segments may be coupled together or formed to permit one or more of the segments to be pivoted relative to another segment to adapt the shape of the flexible pipe section.

The plumbing assembly may comprise a second plumbing connector.

The second plumbing connector may also comprise a plumbing connector according to the first aspect.

The second plumbing connector may be the same or different to the first plumbing connector.

According to a third aspect, there is provided a kit of parts comprising the plumbing connector according to the first aspect; and a flexible pipe section.

The plumbing assembly may comprise a second plumbing connector.

The second plumbing connector may also comprise a plumbing connector according to the first aspect.

The second plumbing connector may be the same or different to the first plumbing connector.

According to a fourth aspect, there is provided a method for making up a plumbing assembly using the plumbing connector of the first aspect.

Where not already supplied as such, the method may comprise locating the collar on the first end portion of the connector body.

The method may comprise pushing the first end portion of the connector body into the end of the flexible pipe section until the retainer arrangement engages and secures the connector body to the flexible pipe section.

It should be understood that the features defined above or described below may be utilised, either alone or in combination, with any other defined feature.

DESCRIPTION OF THE DRAWINGS

These and other aspects of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which:

Figure 1 shows an exploded view of a plumbing connector; and

Figure 2 shows an enlarged view of the connector body of the plumbing connector shown in Figure 1 ;

Figure 3 shows an enlarged view of the collar of the plumbing connector shown in Figure 1 ;

Figure 4 shows a plumbing assembly utilising the plumbing connector shown in

Figure 1 ;

Figure 5 an alternative plumbing connector to that shown in Figure 1 ;

Figure 6 shows an enlarged view of part of the plumbing connector shown in

Figure 5;

Figure 7 shows a plumbing assembly utilising the plumbing connector shown in

Figure 5;

Figure 8 an alternative plumbing connector to that shown in Figures 1 and 5; Figure 9 shows an enlarged view of part of the plumbing connector shown in

Figure 8; and

Figure 10 shows a plumbing assembly utilising the plumbing connector shown in Figure 8.

DETAILED DESCRIPTION

Referring first to Figure 1 of the accompanying drawings, there is shown a plumbing connector 10 for use in a plumbing assembly including a flexible pipe section (such as assembly 100 and flexible pipe section 102 shown in Figure 4 and described below).

As shown in Figure 1 , the plumbing connector 10 comprises a connector body 12 and a collar 14 configured for location on the connector body 12. In use, and as will be described below, part of the connector body 12 is configured for insertion into the end of the flexible pipe section 102 to engage and secure the plumbing connector 10 to the flexible pipe section 102, the collar 14 configured to extend over and engage an outer surface of a flexible pipe section 102.

Referring now also to Figure 2 of the accompanying drawings, which shows an enlarged view of the connector body 12 shown in Figure 1 , the connector body 12 is generally tubular in construction, having an axial throughbore 16 therethrough defining an axial flow passage through the connector body 12.

The connector body 12 has a first, male, end portion 18 configured for insertion into and engaging the inside of the flexible pipe section 102 (shown in Figure 4) and a second end portion 20 for coupling to a second pipe section 104 (shown in Figure 4) so as to connect the flexible pipe section 102 to the second pipe section 104. The first end portion 18 and second end portion 20 are separated by flange portion 22, the flange portion 22 in use providing an end stop for the collar 14.

In the illustrated plumbing connector 10, the first end portion 18 of the connector body 12 has a distal section 24, a proximal section 26 and a tapered section 28, the tapered section 28 being interposed between and forming a transition between the distal section 24 and the proximal section 26. In use, the distal section 24 forms a leading end of the connector 12 for insertion into the flexible pipe section 102. The proximal section 26 is adjacent to the flange portion 22.

As shown in Figure 2, the outer diameter of the proximal section 26 is greater than the outer diameter of the distal section 24, the tapered section 28 defining a ramp angle.

In use, the ramp angle may secure or assist in securing the first end portion 18 of the connector body 12 to the inside of the flexible pipe section 102, friction between the tapered section 28 and the inside of the flexible pipe section 102 on insertion of the first end portion 18 into the flexible pipe section 102 securing or assisting in securing the first end portion 18 of the connector body 12 to the inside of the flexible pipe section 102.

As shown in Figure 2, while the outer diameter of the first end portion 18 varies along its length, the first end portion 18 of the connector body 12 has a constant inner diameter along its length.

A retainer arrangement 30 is formed on an outer surface of the first end portion 18, the retainer arrangement 30 configured to engage the inside of the flexible pipe section 102. In the illustrated connector 10 the retainer arrangement 30 is formed on the proximal section 26 of the first end portion 18.

In use, on insertion of the first end portion 18 of the connector body 12 into the end of the flexible pipe section 102, the retainer arrangement 30 permits the flexible pipe section102 to pass over the retainer arrangement 30 in a first axial direction (that is, the direction which brings the flexible pipe section 102 and the connector body 12 together) but prevents or resists movement of the flexible pipe section 102 in a second axial direction (that is, the direction moving the connector body 12 and the flexible pipe section 102 apart).

Beneficially, the retainer arrangement 30 is configured to engage the inside of the flexible pipe section 102 without the requirement to rotate the connector body 12.

As shown in Figure 2, in the illustrated connector 10 the retainer arrangement 30 takes the form of a plurality of ribs 32. Each rib 32 defines a ramp or ratchet profile which permits the flexible pipe section to pass over the rib 32 in a first axial direction (that is, the direction which brings the flexible pipe section 102 and the connector body 12 together) but prevents or resists movement of the flexible pipe section 102 in a second axial direction (that is, the direction moving the connector body 12 and the flexible pipe section 102 apart).

As described above, the collar 14 is configured for location on the first end portion 18 and the retainer arrangement 30 is also configured to retain the collar 14 on the connector body 12, the ribs 32 permitting the collar 14 to pass over the retainer arrangement 30 in the first axial direction but prevent or resist movement of the collar in the second axial direction.

Thus, in use, on location of the collar 14 on the first end portion 18 of the connector body 12, the retainer arrangement 30 permits the collar 14 to pass over the retainer arrangement 30 in a first axial direction (that is, the direction which brings the collar 14 and the connector body 12 together) but prevents or resist movement of the collar 14 in the second axial direction (that is, the direction moving the connector body 12 and the collar 14 apart).

As described above, the second end portion 20 of the connector body 12 is for coupling to a second pipe section 104 so as to connect the flexible pipe section 102 to the second pipe section 104.

In the illustrated connector 10, the second end portion 20 defines a female end portion for receiving an end of the second pipe section 104, the inner diameter of the second end portion 20 sized to receive the end of the second pipe section 104. A seat 34 forms an end stop for insertion of the second pipe section 104.

As shown in Figure 2, a connector arrangement in the form of threaded connection 34 is formed on the outer surface of the second end portion 20, the connection 34 configured to engage a nut (106 shown diagrammatically in Figure 4) of the second pipe section 104 to secure the connector body 12 to the second pipe section 104 and thus the flexible pipe section 102 to the second pipe section 104. It will be recognised that while in the illustrated connector 12, the connection 34 engages a nut 106 associated with the second pipe section 104, the connection 34 may alternatively directly engage the second pipe section 104.

Referring now also to Figure 3 of the accompanying drawings, which shows an enlarged view of the collar 14, it can be seen that the collar 14 comprises an annular base portion 36 having aperture 38 configured to permit the collar 14 to be located over the first end portion 18 of the connector body 12 and a wall portion 40 extending from the base portion 36. In use, the wall portion 40 is configured to extend, i.e. is disposed over, the outer surface of the flexible pipe section 102 when the first end portion 18 of the connector body 12 is inserted into the inside of the flexible pipe section 104.

In the illustrated connector 10, the aperture 38 has an inner diameter sized to provide an interference fit with the connector body 12, more particularly an interference fit with the ribs 32 of the retainer arrangement 30.

As shown in Figure 3, the wall portion 40 is configured to engage the outer surface of the flexible pipe section 102, and has a retainer arrangement 42 to secure or further secure the connection between the collar 14 and the flexible pipe section 102.

In the illustrated connector 10, the retainer arrangement 42 of the collar 14 takes the form of a plurality of ribs 44 having a ramp or ratchet profile which permit the retainer arrangement 42 to pass over the flexible pipe section 102 but prevent or resist movement in the opposite direction.

Referring now also to Figure 4 of the accompanying drawings, there is shown the plumbing assembly 100 described briefly above. While Figure 4 shows the plumbing connector 10 and flexible pipe section 102 in assembled form, in order to better illustrate the components of the assembly 100 the second end portion 20 and its associated components are shown in exploded view.

As described above, the assembly 100 includes the plumbing connector 10 described above and flexible pipe section 102. The flexible pipe section 102 has segments 106 which are formed to permit one or more of the segments 106 to be collapsed together to reduce the overall length of the flexible pipe section 102 or vice- versa to be expanded/ moved apart to axially increase the overall length of the flexible pipe section 102. The segments 106 are also formed to permit one or more of the segments 106 to be pivoted relative to another segment 106 to adapt the shape of the flexible pipe section 102.

As shown in Figure 4, the first end portion 18 of the connector body 12 has been inserted, i.e. pushed, into the end of the flexible pipe section 102. The retainer arrangement 30 engages and secures the plumbing connector 10 to the flexible pipe section 102, and the collar 14 to the connector body 12.

The collar 14 is configured to extend over and engage an outer surface of flexible pipe section 102. The retainer arrangement 42 engages and secures the collar 14 to the flexible pipe section 102.

In the assembly 100 shown in Figure 4, the second end portion 20 defines a compression-type connector, the inner diameter of the second end portion 20 sized to receive the end of the second pipe section 104, while the thread connection 34 engages a corresponding thread connection 108 on nut 110.

As shown in Figure 4, a compression ring 112 is disposable around the second pipe section 104 and, when assembled, is interposed between the second end portion 20 of the connector body 12 and the second pipe section 104 to provide secure engagement therebetween when the thread connection 34 and 108 are engaged. A seal arrangement in the form of o-ring seal element 114 is disposable around the second pipe section 104 and, when assembled, is interposed between the compression ring 112 and the nut 110.

Referring now to Figure 5 of the accompanying drawings, there is shown an alternative plumbing connector 1010.

As shown in Figure 5, the plumbing connector 1010 comprises a connector body 1012 and a collar 1014 configured for location on the connector body 1012. The connector body 1012 is generally tubular in construction, having an axial throughbore 1016 therethrough defining an axial flow passage through the connector body 1012.

The connector body 1012 has a first, male, end portion 1018 configured for insertion into and engaging the inside of the flexible pipe section 102 (shown in Figure 7) and a second end portion 1020 for coupling to a second pipe section 104 (shown in Figure 7) so as to connect the flexible pipe section 102 to the second pipe section 104. The first end portion 1018 and second end portion 1020 are separated by flange portion 1022, the flange portion 1022 in use providing an end stop for the collar 1014.

Referring now also to Figure 6 of the accompanying drawings, which shows an enlarged view of part of the connector body 1012 shown in Figure 5, the first end portion 1018 of the connector body 1012 is substantially identical to the first end portion 18 described above.

As in the first portion 18, the first end portion 1018 of the connector body 1012 has a distal section 1024, a proximal section 1026 and a tapered section 1028, the tapered section 1028 being interposed between and forming a transition between the distal section 1024 and the proximal section 1026. In use, the distal section 1024 forms a leading end of the connector 1012 for insertion into the flexible pipe section 102. The proximal section 1026 is adjacent to the flange portion 1022.

As shown in Figure 6, the outer diameter of the proximal section 1026 is greater than the outer diameter of the distal section 1024, the tapered section 1028 defining a ramp angle. In use, the ramp angle may secure or assist in securing the first end portion 1018 of the connector body 1012 to the inside of the flexible pipe section 102, friction between the tapered section 1028 and the inside of the flexible pipe section 102 on insertion of the first end portion 1018 into the flexible pipe section 102 securing or assisting in securing the first end portion 18 of the connector body 1012 to the inside of the flexible pipe section 102. While the outer diameter of the first end portion 1018 varies along its length, the first end portion 1018 of the connector body 1012 has a constant inner diameter along its length.

A retainer arrangement 1030 is formed on an outer surface of the first end portion 1018, the retainer arrangement 1030 configured to engage the inside of the flexible pipe section 102. In the illustrated connector 1010 the retainer arrangement 1030 is formed on the proximal section 1026 of the first end portion 1018.

In use, on insertion of the first end portion 1018 of the connector body 1012 into the end of the flexible pipe section 102, the retainer arrangement 1030 permits the flexible pipe section 102 to pass over the retainer arrangement 1030 in a first axial direction (that is, the direction which brings the flexible pipe section 102 and the connector body 1012 together) but prevents or resists movement of the flexible pipe section 102 in a second axial direction (that is, the direction moving the connector body 1012 and the flexible pipe section 102 apart).

Beneficially, the retainer arrangement 1030 is configured to engage the inside of the flexible pipe section 102 without the requirement to rotate the connector body 1012.

As shown in Figure 6, in the illustrated connector 1010 the retainer arrangement 1030 takes the form of a plurality of ribs 1032. Each rib 1032 defines a ramp or ratchet profile which permits the flexible pipe section to pass over the rib 1032 in a first axial direction (that is, the direction which brings the flexible pipe section 102 and the connector body 1012 together) but prevents or resists movement of the flexible pipe section 102 in a second axial direction (that is, the direction moving the connector body 1012 and the flexible pipe section 102 apart). As described above, the collar 1014 is configured for location on the first end portion 1018 and the retainer arrangement 1030 is also configured to retain the collar 1014 on the connector body 1012, the ribs 1032 permitting the collar 1014 to pass over the retainer arrangement 1030 in the first axial direction but prevent or resist movement of the collar 1014 in the second axial direction.

Thus, in use, on location of the collar 1014 on the first end portion 1018 of the connector body 1012, the retainer arrangement 1030 permits the collar 1014 to pass over the retainer arrangement 1030 in a first axial direction (that is, the direction which brings the collar 1014 and the connector body 1012 together) but prevents or resist movement of the collar 1014 in the second axial direction (that is, the direction moving the connector body 1012 and the collar 1014 apart).

As described above, the second end portion 1020 of the connector body 1012 is for coupling to a second pipe section 104 so as to connect the flexible pipe section 102 to the second pipe section 104.

In the illustrated connector 1010 shown in Figures 5 and 6, the second end portion 1020 defines a plain end. In use, the second end portion 1020 is secured to the second pipe section 104 by an interference fit and/or by a fastener such as glue.

Figure 7 shows a plumbing assembly 1100 including the plumbing connector 1010 shown in Figure 5.

As shown in Figure 7, the assembly 1100 includes the plumbing connector 1010 described above and flexible pipe section 102. The first end portion 1018 of the connector body 1012 has been inserted, i.e. pushed, into the end of the flexible pipe section 102. The retainer arrangement 1030 engages and secures the plumbing connector 1010 to the flexible pipe section 102, and the collar 1014 to the connector body 1012.

The collar 1014 is configured to extend over and engage an outer surface of flexible pipe section 102. The retainer arrangement 1042 engages and secures the collar 1014 to the flexible pipe section 102.

In the assembly 1100 shown in Figure 7, the second end portion 1020 defines a plain end, the inner diameter of the second end portion 1020 sized to receive the end of the second pipe section 104. However, it will be recognised that the second end portion 1020 may alternatively define a male end portion for insertion into the second pipe section 104. In the assembly 1100, the second end portion 1020 is secured to the second pipe section 104 by an interference fit and/or by glue. Referring now to Figure 8 of the accompanying drawings, there is shown an alternative plumbing connector 2010.

As shown in Figure 8, the plumbing connector 2010 comprises a connector body 2012 and a collar 2014 configured for location on the connector body 2012. The connector body 2012 is generally tubular in construction, having an axial throughbore 2016 therethrough defining an axial flow passage through the connector body 2012.

The connector body 2012 has a first, male, end portion 2018 configured for insertion into and engaging the inside of the flexible pipe section 102 (shown in Figure 10) and a second end portion 2020 for coupling to a second pipe section 104 (shown in Figure 10) so as to connect the flexible pipe section 102 to the second pipe section 104. The first end portion 2018 and second end portion 2020 are separated by flange portion 2022, the flange portion 2022 in use providing an end stop for the collar 2014.

Referring now also to Figure 9 of the accompanying drawings, which shows an enlarged view of part of the connector body 2012 shown in Figure 8, the first end portion 2018 of the connector body 2012 is substantially identical to the first end portion 18 described above.

As in the first portion 18, the first end portion 2018 of the connector body 2012 has a distal section 2024, a proximal section 2026 and a tapered section 2028, the tapered section 2028 being interposed between and forming a transition between the distal section 2024 and the proximal section 2026. In use, the distal section 2024 forms a leading end of the connector 2012 for insertion into the flexible pipe section 102. The proximal section 2026 is adjacent to the flange portion 2022.

As shown in Figure 9, the outer diameter of the proximal section 2026 is greater than the outer diameter of the distal section 2024, the tapered section 2028 defining a ramp angle. In use, the ramp angle may secure or assist in securing the first end portion 2018 of the connector body 2012 to the inside of the flexible pipe section 102, friction between the tapered section 2028 and the inside of the flexible pipe section 102 on insertion of the first end portion 2018 into the flexible pipe section 102 securing or assisting in securing the first end portion 2018 of the connector body 2012 to the inside of the flexible pipe section 102. While the outer diameter of the first end portion 2018 varies along its length, the first end portion 2018 of the connector body 2012 has a constant inner diameter along its length.

A retainer arrangement 2030 is formed on an outer surface of the first end portion 2018, the retainer arrangement 2030 configured to engage the inside of the flexible pipe section 102. In the illustrated connector 2010 the retainer arrangement 2030 is formed on the proximal section 2026 of the first end portion 2018.

In use, on insertion of the first end portion 2018 of the connector body 2012 into the end of the flexible pipe section 102, the retainer arrangement 2030 permits the flexible pipe section 102 to pass over the retainer arrangement 2030 in a first axial direction (that is, the direction which brings the flexible pipe section 102 and the connector body 2012 together) but prevents or resists movement of the flexible pipe section 102 in a second axial direction (that is, the direction moving the connector body 2012 and the flexible pipe section 102 apart).

Beneficially, the retainer arrangement 2030 is configured to engage the inside of the flexible pipe section 102 without the requirement to rotate the connector body 2012.

As shown in Figure 9, in the illustrated connector 2010 the retainer arrangement 2030 takes the form of a plurality of ribs 2032. Each rib 2032 defines a ramp or ratchet profile which permits the flexible pipe section 102 to pass over the rib 2032 in a first axial direction (that is, the direction which brings the flexible pipe section 102 and the connector body 2012 together) but prevents or resists movement of the flexible pipe section 102 in a second axial direction (that is, the direction moving the connector body 2012 and the flexible pipe section 102 apart).

As described above, the collar 2014 is configured for location on the first end portion 2018 and the retainer arrangement 2030 is also configured to retain the collar 2014 on the connector body 2012, the ribs 2032 permitting the collar 2014 to pass over the retainer arrangement 2030 in the first axial direction but prevent or resist movement of the collar 2014 in the second axial direction.

Thus, in use, on location of the collar 2014 on the first end portion 2018 of the connector body 2012, the retainer arrangement 2030 permits the collar 2014 to pass over the retainer arrangement 2030 in a first axial direction (that is, the direction which brings the collar 2014 and the connector body 2012 together) but prevents or resist movement of the collar 2014 in the second axial direction (that is, the direction moving the connector body 2012 and the collar 2014 apart).

As described above, the second end portion 2020 of the connector body 2012 is for coupling to a second pipe section 104 so as to connect the flexible pipe section 102 to the second pipe section 104.

In the illustrated connector 1010 shown in Figures 8 and 9, the second end portion 2020 has an inner diameter sized to receive the end of the second pipe section 104. A nut 2110 is disposed about the second end portion 2020. A compression ring 2112 is disposed on the end of second end portion 2020 and is interposed between the nut 2110 and second pipe section 104, such that rotation of the nut 2110 compresses the compression ring 2112 into secure engagement with the second pipe section 104.

It should be understood that the above described embodiments are merely exemplary and that various modifications may be made thereto without departing from the scope of the invention as defined by the claims.