JPS62188678U

JPS62188678U -

Info

Publication number: JPS62188678U
Application number: JP7628486U
Authority: JP
Priority date: 1986-05-22
Filing date: 1986-05-22
Publication date: 1987-12-01

Description

[Brief explanation of the drawing]

第１図は本考案による水撃防止電磁弁の構造を
示す縦断面図、第２図は主弁体について示す断面
図、第３図は本考案に係る主弁体に形成された連
通孔の拡大断面図である。１……ケーシング、３……ソレノイド、５……
プランジヤ、７……ベロフラム、８……入口、９
……出口、１０……主弁座、１１……ピストン、
１３……パイロツト孔、１４……主圧力室、１５
……連通孔。 Fig. 1 is a longitudinal sectional view showing the structure of the water hammer prevention solenoid valve according to the present invention, Fig. 2 is a sectional view showing the main valve body, and Fig. 3 is a sectional view of the communication hole formed in the main valve body according to the present invention. It is an enlarged sectional view. 1...Casing, 3...Solenoid, 5...
Plunger, 7... Bellofram, 8... Entrance, 9
...Outlet, 10...Main valve seat, 11...Piston,
13...Pilot hole, 14...Main pressure chamber, 15
...Communication hole.

Claims

[Scope of Claim for Utility Model Registration] (1) A main valve body that can open and close a flow path, and a main pressure chamber that communicates with the inlet and outlet sides of the flow path through communication holes and pilot holes formed in the main valve body. and a solenoid valve configured to slow the opening and closing speed of the main valve body to alleviate water hammer in the flow path, wherein the diameter of the communicating hole is equal to that of the flow path and the main pressure. A water hammer prevention solenoid valve characterized in that the opening/closing speed of the main valve body can be delayed by automatically changing according to the pressure difference between the water hammer and the chamber. (2) The water recited in claim (1) for registration of a utility model, characterized in that the main valve body is composed of a bellow frame and a piston attached to the bellow frame, and a communicating hole is formed in the bellow frame. Strike prevention solenoid valve.