JPS59146668U

JPS59146668U - safety relief valve

Info

Publication number: JPS59146668U
Application number: JP7038283U
Authority: JP
Inventors: 芦　初男
Original assignee: フシマン株式会社
Priority date: 1983-05-11
Filing date: 1983-05-11
Publication date: 1984-10-01

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図乃至第３図はそれぞれ互いに異なる構造形式の安
全逃し弁の従来例を示す縦断面図、第４図は本考案に係
る安全逃し弁の一実施例を示す縦断面図、第５図は第４
図の■−Ｖ線断面図、第６図は第４図に示す弁座及び弁
体回りの拡大図、第７図は補強金具の中央縦断面図、第
８区は補強金具の底面図、第９図はダイアフラム受の中
央縦断面図、第１０図はダイアフラム受の底面図である
。１・・・・・・弁箱、２・・・・・・ばね保護筒、４ａ
・・・・・・補強金具、４ａ’・・・・・・透穴、４ａ
″・・・・・・突起、４ｂ・・・・・・弾性体部分、５
・・・・・・調節ばね、６・・・・・・揚弁棒、７・・
・・・・調節ねじ、９・・・・・・ダイアフラム受、１
０・・・・・・ダイアフラム、１１・・・・・・テスト
レバー。1 to 3 are longitudinal cross-sectional views showing conventional examples of safety relief valves with different structural types, respectively. FIG. 4 is a longitudinal cross-sectional view showing an embodiment of the safety relief valve according to the present invention. FIG. is the fourth
6 is an enlarged view of the valve seat and valve body shown in FIG. 4, FIG. 7 is a central vertical sectional view of the reinforcing fitting, Section 8 is a bottom view of the reinforcing fitting, FIG. 9 is a central vertical sectional view of the diaphragm receiver, and FIG. 10 is a bottom view of the diaphragm receiver. 1...Valve box, 2...Spring protection tube, 4a
...Reinforcement metal fitting, 4a'...Through hole, 4a
″...Protrusion, 4b...Elastic body part, 5
...Adjustment spring, 6... Lifting valve rod, 7...
...Adjustment screw, 9...Diaphragm holder, 1
0...Diaphragm, 11...Test lever.

Claims

[Scope of utility model registration request]

(1) A valve body including a connection port, a valve seat portion, and an air outlet; a spring protection cylinder connected to the valve body; and a spring protection cylinder that is held between the valve case and the spring protection cylinder, and is connected to the inside of the valve case and the spring protection cylinder. a diaphragm capable of liquid-tightly or airtightly partitioning the diaphragm, a valve body and a diaphragm receiver coupled to the diaphragm, an adjustment spring capable of compressing the valve body in the valve-closing direction, and an adjustment capable of adjusting the elasticity of the adjustment spring. A screw, a valve lift rod that can move the valve body in the valve opening direction,
A diaphragm seal type safety relief valve equipped with a test lever that is pivotally connected to the lift valve rod and can open the valve body,
A safety relief valve characterized in that the diameter of the movable part of the diaphragm is the same as or near the diameter of the valve seat.

(2) A request for registration of a utility model characterized in that the diaphragm is formed as thin as possible, and the movable part of the diaphragm is provided with a convolution so that the diaphragm does not come out into the flow path. Safety relief valves described in scope (1).