CORRUGATED PIPE STOP VALVE

WIPO Patent Application WO/2021/143495

A1

A corrugated pipe stop valve, relating to the technical field of stop valves. The corrugated pipe stop valve comprises a valve cavity (3) defined by a valve cover (1) and a valve body (4), the valve body (4) is provided with a staggered fluid inlet and outlet (5) and a stepped through hole (7), the stepped through hole (7) is communicated with the fluid inlet and outlet (5), and a first sealing assembly (23) and a second sealing assembly (24) are provided in the portion, on one side of the stepped through hole (7), of the valve cavity (3); the valve cover (1) is provided with a leakage detection device (28), and an inlet end (16) of the leakage detection device (28) is located at the portion, between the first sealing assembly (23) and the second sealing assembly (24), of the valve cavity (3). The corrugated pipe stop valve overcomes the defect of a corrugated pipe stop valve in the prior art, i.e., lack of prejudgment on the sealing performance and leakage detection thereof, the sealing state of the corrugated pipe stop valve is monitored at any time by means of the leakage detection device (28) so as to provide a basis for leakage prejudgment and maintenance of the corrugated pipe stop valve, and the use and maintenance costs of the valve are reduced.

SONG ZHIWEI (CN)
YUAN AICHENG (CN)
WANG LONGXIANG (CN)
HE YAOGANG (CN)

PCT/CN2020/139609

July 22, 2021

December 25, 2020

Click for automatic bibliography generation  

NEWAY VALVE SUZHOU CO LTD (CN)

F16K41/10; F16K27/02; F16K27/08; F16K31/50; F16K37/00

CN201137751Y	2008-10-22
CN101975279A	2011-02-16
CN108869758A	2018-11-23
CN204828914U	2015-12-02
CN202708296U	2013-01-30
CN207161860U	2018-03-30
FR2441780A1	1980-06-13
CN110701310A	2020-01-17
CN111156346A	2020-05-15

SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)

View/Download PDF      PDF Help

Previous Patent: FIXED BALL VALVE

Next Patent: GRINDING DEVICE