JPH0428295U

JPH0428295U -

Info

Publication number: JPH0428295U
Application number: JP6941190U
Authority: JP
Priority date: 1990-06-29
Filing date: 1990-06-29
Publication date: 1992-03-06
Anticipated expiration: 2005-06-29
Also published as: JPH0754714Y2

Description

[Brief explanation of the drawing]

第１図は本考案にかかる水撃防止器の第１実施
例の断面図、第２図は水撃防止器の第２実施例の
断面図、第３図は水撃防止器の第３実施例の断面
図である。１……給水管、２，１３……防止器本体、３，
１４，３０……密着コイルばね、４……封止部材
、５，２０，３４……第１室、７，２１，３５…
…第２室、１５……ピストン、１５ｂ……循環パ
イプ、２２，３６……第３室、２５……調整ばね
、３１……弁体、３１ａ……循環パイプ、３３…
…スリーブ、３３ａ……弁口。 Fig. 1 is a sectional view of a first embodiment of the water hammer preventer according to the present invention, Fig. 2 is a sectional view of the second embodiment of the water hammer preventer, and Fig. 3 is a sectional view of a third embodiment of the water hammer preventer. FIG. 3 is an example cross-sectional view. 1... Water supply pipe, 2, 13... Preventer body, 3,
14, 30... Close coil spring, 4... Sealing member, 5, 20, 34... First chamber, 7, 21, 35...
...Second chamber, 15...Piston, 15b...Circulation pipe, 22, 36...Third chamber, 25...Adjustment spring, 31...Valve body, 31a...Circulation pipe, 33...
...Sleeve, 33a... valve opening.

Claims

[Scope of Claim for Utility Model Registration] (1) A water hammer preventer for mitigating the water hammer effect occurring in a water supply pipe, which includes a main body of the preventer installed in the middle of the water pipe, and one end fixed within the main body of the preventer. a sealing member that seals the other end of the tight coil spring; a first chamber formed inside the tight coil spring and communicating with the inside of the water supply pipe; and a first chamber formed outside the tight coil spring. A water hammer preventer equipped with two chambers. (2) A water hammer preventer that alleviates the water hammer effect that occurs in a water supply pipe consists of a main body of the preventer installed in the middle of the water supply pipe, a close-contact coil spring with one end fixed within the preventer main body, and a close-contact coil. A first chamber formed inside the spring and communicating with the inside of the water supply pipe, and a second chamber and a third chamber that seal the other end of the close coil spring and are formed inside the preventer body outside the close coil spring. A water hammer preventer comprising: a piston that partitions into two parts; and a circulation pipe that protrudes from the piston to penetrate the first chamber and communicates the third chamber with the vicinity of a water supply pipe. (3) A water hammer preventer that alleviates the water hammer effect that occurs in a water supply pipe consists of a main body of the preventer installed in the middle of the water supply pipe, a close coil spring with one end fixed inside the preventer main body, and a close coil spring. A first chamber formed inside the spring and communicating with the inside of the water supply pipe; a valve body that seals the other end of the tightly coiled spring; a sleeve having a valve port that can be freely opened and closed between a second chamber and a third chamber formed outside the tight coil spring; and a sleeve accommodated in the third chamber;
A water hammer preventer equipped with an adjustment spring that biases the sleeve in the closing direction of the valve part, and a circulation pipe that projects from the valve body to penetrate the first chamber and communicates the third chamber with the vicinity of the water supply pipe. .