Title:
ANTI-DRIP SUCTION TUBE CONNECTOR
Document Type and Number:
WIPO Patent Application WO/2018/090551
Kind Code:
A1
Abstract:
Disclosed is an anti-drip suction tube connector, comprising a connector body (1), a fixed end (2), a 90-degree interface end (3), an elastic seal body (4), a valve element (5) and a spring (6). The connector body is fixedly connected to the fixed end in a sealing manner. The 90-degree interface end is rotatably connected to the fixed end in a sealing manner. Guide slots (2-1) are arranged at a lower end of the fixed end. The valve element comprises a plunger (5-1) and the same number of guide winged edges (5-2) as there are guide slots. The guide winged edges of the valve element are in sliding fit with the guide slots. One end of the spring abuts against the fixed end, and the other end of the spring abuts against spring catch slots (5-3) on the guide winged edges. The elastic sealing body comprises a ring-shaped body (4-1). A lower end of the ring-shaped body is provided with a tapered ring (4-2) extending upwardly. The tapered ring is provided with a fluid through hole (4-3). A lower end of the elastic sealing body abuts against a step (1-1) in the body. A wing-shaped liquid accommodating slot (4-4) is formed between the ring-shaped body on the elastic sealing body and the tapered ring. The plunger abuts against the fluid through hole of the elastic sealing body in a sealing manner by means of the spring. The connector can be automatically opened when it is in place by means of its own structure, and can be automatically closed after being disengaged from an operating system, so that residual liquid in an operating pipeline can be effectively prevented from dripping out after being disengaged from the operating system, thereby improving the safety of the system.
Inventors:
ZHANG ZHUHUA (CN)
Application Number:
PCT/CN2017/080344
Publication Date:
May 24, 2018
Filing Date:
April 13, 2017
Export Citation:
Assignee:
CHANGZHOU DSB MEDICAL CO LTD (CN)
International Classes:
F16L29/02
Domestic Patent References:
| WO2011039109A1 | 2011-04-07 |
Foreign References:
| CN106382427A | 2017-02-08 | |||
| CN206246887U | 2017-06-13 | |||
| CN204664713U | 2015-09-23 | |||
| CN201330906Y | 2009-10-21 | |||
| CN102853191A | 2013-01-02 | |||
| US5553638A | 1996-09-10 | |||
| US20050115615A1 | 2005-06-02 |
Attorney, Agent or Firm:
NANJING ZHISHI LAW FIRM OF INTELLECTUAL PROPERTY (CN)
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