JPS59146667U

JPS59146667U - safety relief valve

Info

Publication number: JPS59146667U
Application number: JP4038183U
Authority: JP
Inventors: 芦　初男
Original assignee: フシマン株式会社
Priority date: 1983-03-21
Filing date: 1983-03-21
Publication date: 1984-10-01
Also published as: JPS6128929Y2

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−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図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、１０・・・ダ
イアフラム、１１・・・テストレバー。1 to 3 are vertical cross-sectional views showing conventional examples of safety relief valves with different structural types, respectively. FIG. 4 is a vertical 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 longitudinal sectional view of the reinforcing fitting, and FIG. 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. DESCRIPTION OF SYMBOLS 1...Valve box, 2...Spring protection tube, 4a...Reinforcement fitting, 4a'...Through hole, 4a''...Protrusion, 4b...
Elastic body part, 5... Adjustment spring, 6... Lifting valve rod, 7.
...Adjustment screw, 9...Diaphragm holder, 10...Diaphragm, 11...Test lever.

Claims

[Scope of utility model registration request]

(1) A valve box including a connection port, a valve seat, and an air outlet, a spring protection cylinder connected to the valve case, and a valve case that is held between the valve case and the spring protection cylinder to protect the inside of the valve case and the inside of the spring protection cylinder. A diaphragm that can be partitioned in a liquid-tight or air-tight manner, a valve element and a diaphragm receiver coupled to the diaphragm, an adjustment spring that can press the valve element in the valve-closing direction, and an adjustment screw that can adjust the elasticity of the adjustment spring. In the safety relief valve, the valve body, the diaphragm, and the diaphragm are provided. The diaphragm holder is integrated with the comb-shaped elastic body, and the diaphragm holder is guided by a spring protection cylinder.
A safety relief valve characterized in that a test lever is brought into contact with the top surface of the adjustment screw.

(2) The safety according to claim (1) for registration of a utility model, in which the valve body is composed of a cup-shaped reinforcing metal fitting having a plurality of through holes, and a rubber-like elastic body filled and baked into the reinforcing metal fitting. relief valve.

(3) A utility model registration request in which the edge of the reinforcing metal fitting protrudes from the seating surface of the valve body, and from the edge extends a plurality of narrow protrusions that can come into contact with the stopper surface of the valve seat. A safety relief valve according to range (1) or (2).

(4) The scope of the utility model registration claim (1) in which the entire surface of the valve body and diaphragm is coated with fluororesin
) to (3).

(5) The safety relief valve according to any one of claims (1) to (4), wherein the valve seat portion is arranged close to the diaphragm.

(6) The utility model registration claim described in any one of claims (1) to (5), wherein the outlet side flow path formed in the valve box is configured to have a large volume. Safety relief valve.