JPS6432976U

JPS6432976U -

Info

Publication number: JPS6432976U
Application number: JP12800987U
Authority: JP
Priority date: 1987-08-25
Filing date: 1987-08-25
Publication date: 1989-03-01
Also published as: JPH0451262Y2

Description

[Brief explanation of drawings]

第１図及び第２図は本考案の逃がし弁の実施例
の縦断面図で第１図は閉弁時の状態を、第２図は
開弁時の状態を示す。第３図は第１図の矢視図
、第４図は変形例の部分断面図、第５図は従来使
用されて来た逃がし弁の縦断面図、第６図は開弁
開始時に弁体が振動するのを防止した従来構成の
縦断面図である。符号の説明：１……球状弁体、２……弁筐体、
３……スプリング、４……流体系内に連通する連
通路、５……流体系外に連通する連通路、６……
スプリングの座、７……ピストン、２―１，２―
４……弁座、２―２……弁室、２―３……ピスト
ンの案内面としての弁室２―２の延長、７―１…
…ピストン端面の窪み。 1 and 2 are longitudinal cross-sectional views of an embodiment of the relief valve of the present invention, with FIG. 1 showing the valve closed state and FIG. 2 showing the valve open state. Figure 3 is a view in the direction of the arrow in Figure 1, Figure 4 is a partial sectional view of a modified example, Figure 5 is a longitudinal sectional view of a conventionally used relief valve, and Figure 6 is a valve body when the valve starts opening. FIG. 2 is a vertical cross-sectional view of a conventional configuration that prevents vibrations. Explanation of symbols: 1... Spherical valve body, 2... Valve housing,
3...Spring, 4...Communication path communicating within the fluid system, 5...Communication path communicating outside the fluid system, 6...
Spring seat, 7... Piston, 2-1, 2-
4... Valve seat, 2-2... Valve chamber, 2-3... Extension of valve chamber 2-2 as a guide surface for the piston, 7-1...
...A depression on the end face of the piston.

Claims

[Scope of utility model registration request]

When the pressure within the fluid system exceeds the pressure outside the fluid system and becomes higher than a certain value, the valve is opened to allow the excess fluid within the fluid system to flow out of the fluid system, thereby reducing the pressure outside the fluid system. a relief valve that closes when the exceeded pressure value in the fluid system is equal to or less than the predetermined value, and prevents the fluid in the fluid system from flowing out and the fluid outside the fluid system from flowing into the fluid system; A valve housing 2 in which a spherical valve body 1, a valve seat 2-1 that cooperates with the spherical valve body 1 to perform a valve action, and a valve housing 2 formed with the spherical valve body 1, In the relief valve, the spherical valve element 1 is slid into a cylindrical valve chamber 2-2 in which the spherical valve element 1 is accommodated, between the spherical valve element 1 and the spring 3. Piston 7 that can be freely fitted to form a piston valve
is arranged and performs two stages of valve action in series, thereby preventing the spherical valve body 1 from vibrating when the valve is opened, and allowing the spherical valve body 1 to be freely positioned in the radial direction of the piston 7. 1. A relief valve characterized in that the relief valve has an angle and can be positioned concentrically with the valve seat 2-1.