Title:
排水管用圧力調整弁
Document Type and Number:
Japanese Patent JP6812859
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pressure regulation valve capable of suppressing damage of function of the pressure regulation valve and suppressing the occurrence of noise accompanying seating of a valve body.SOLUTION: A pressure regulating valve 10 for a drain pipe regulates a pressure in the drain pipe and includes: a housing 11 having a valve seat 23 formed on a circumference of a communication hole 22 for communicating a vent pipe 100 which is branched from the drain pipe and is extended with an external part and a support cylinder part 27 arranged in the communication hole 22; a shaft part 16 which can be displaced along a shaft line direction in the support cylinder part 27; a valve part 18 which is abutted on the valve seat 23 by gravity, closes the communication hole 22 and, on the other hand, is displaced so as to be separated from the valve seat 23 by a pressure difference between a pressure in the drain pipe and a pressure of the external part; and a valve body 15 integrally molded with soft resin. On the shaft part 16, a regulation part 17 which regulates the maximum displacing quantity of the shaft part 16 is provided by restraint on the support cylinder part 27.SELECTED DRAWING: Figure 3
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Inventors:
Kimura Yuka
Application Number:
JP2017048349A
Publication Date:
January 13, 2021
Filing Date:
March 14, 2017
Export Citation:
Assignee:
Onda Manufacturing Co., Ltd.
International Classes:
E03C1/122; F16K1/32; F16K24/06
Domestic Patent References:
| JP9292045A | ||||
| JP2015169214A | ||||
| JP201744224A |
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda