JPH0234050U

JPH0234050U -

Info

Publication number: JPH0234050U
Application number: JP11298688U
Authority: JP
Priority date: 1988-08-29
Filing date: 1988-08-29
Publication date: 1990-03-05
Anticipated expiration: 2003-06-04
Also published as: JPH0521810Y2

Description

[Brief explanation of drawings]

第１図は本考案によるプレツシヤースイツチの
不作動状態の概略断面図、第２図は第１図の要部
拡大断面図、第３図は本考案によるプレツシヤー
スイツチの作動状態の概略断面図、第４図は従来
のプレツシヤースイツチの不作動状態の概略断面
図、第５図は第４図の要部拡大断面図である。１，２１……圧力導入口、２，２２……入口ケ
ース、３，２３……本体ケース、４，２４……受
圧用ダイアフラム、４ａ，２４ａ……凹部、５，
２５……第１のシリンダ、６，２６……第２のシ
リンダ、７，２７……第１のピストン、８，２８
……第２のピストン、８ａ……凹部、９，２９…
…ガイド部材、９ａ，２９ａ……孔、１０，３０
……ばね、１１，３１……コネクテイングロツド
、１１ａ，１１ｂ……凹部、１２……ダイアフラ
ム、１２ａ……凸部、１５，３５……マイクロス
イツチ、１６，３６……作動部、３７……潤滑剤
。 Fig. 1 is a schematic sectional view of the pressure switch according to the present invention in an inoperative state, Fig. 2 is an enlarged sectional view of the main part of Fig. 1, and Fig. 3 is a schematic sectional view of the pressure switch according to the present invention in an operating state. 4 is a schematic sectional view of a conventional pressure switch in an inoperative state, and FIG. 5 is an enlarged sectional view of the main part of FIG. 4. 1, 21... Pressure introduction port, 2, 22... Inlet case, 3, 23... Main body case, 4, 24... Pressure receiving diaphragm, 4a, 24a... Recess, 5,
25...First cylinder, 6,26...Second cylinder, 7,27...First piston, 8,28
...Second piston, 8a...Recess, 9, 29...
...Guide member, 9a, 29a... Hole, 10, 30
. . . Spring, 11, 31 . …lubricant.

Claims

[Scope of utility model registration request]

A micro switch 15 having an actuating portion 16 and a guide member 9 having a hole 9a in the center are disposed inside the main body case 3, and a connecting rod is provided that passes through the hole 9a of the guide member 9 and is movable up and down. 11, and the connecting rod 11
In the pressure switch, which switches on/off by pushing and releasing the actuating part 16 of the micro switch 15 by vertical movement of the micro switch 15, the hole 9 of the guide member 9 through which the connecting rod 11 passes.
A disk-shaped diaphragm 12 having a large diameter a, a recess 11b formed at the center of the upper surface of the connecting rod 11, and a convex portion 12a that matches the recess 11b at the center of the lower surface is attached to the microswitch. A pressure switch characterized in that the hole 9a of the guide member 9 is disposed between the operating portion 16 of the guide member 15 and the connecting rod 11 in a closed state.