JPS63134428U

JPS63134428U -

Info

Publication number: JPS63134428U
Application number: JP2709587U
Authority: JP
Priority date: 1987-02-25
Filing date: 1987-02-25
Publication date: 1988-09-02

Description

[Brief explanation of drawings]

第１図ないし第６図はこの考案による圧力スイ
ツチの一実施例を示す図で、第１図は正面図、第
２図は側面図、第３図は背面図、第４図は拡大縦
断面図、第５図は動作感度の調整説明図、第６図
は要部拡大分解斜視図、第７図および第８図はこ
の考案による圧力スイツチの他の実施例を示す図
で、第７図は正面図、第８図は要部分解拡大斜視
図、第９図および第１０図は従来の圧力スイツチ
の一例を示す図で第９図は正面図、第１０図は側
面図である。２……底板、２ａ……流体供給口、３……ケー
ス、４……上側鍔、５……受圧板、６……ベロー
ズ、７……保持板、８……案内筒、９……フツク
、９ａ，９ｂ……係止突起、１０……保持枠、１
１……永久磁石、１２……プランジヤ、１３……
絶縁キヤツプ、１３ａ，１３ｂ……係止溝、１４
……リードスイツチ。 Figures 1 to 6 are views showing one embodiment of the pressure switch according to this invention, with Figure 1 being a front view, Figure 2 being a side view, Figure 3 being a rear view, and Figure 4 being an enlarged longitudinal section. Fig. 5 is an explanatory diagram of adjustment of operating sensitivity, Fig. 6 is an enlarged exploded perspective view of main parts, Figs. 7 and 8 are views showing other embodiments of the pressure switch according to this invention, and Fig. 8 is a front view, FIG. 8 is an exploded perspective view of essential parts, and FIGS. 9 and 10 are views showing an example of a conventional pressure switch. FIG. 9 is a front view, and FIG. 10 is a side view. 2... Bottom plate, 2a... Fluid supply port, 3... Case, 4... Upper collar, 5... Pressure receiving plate, 6... Bellows, 7... Holding plate, 8... Guide cylinder, 9... Hook , 9a, 9b... Locking protrusion, 10... Holding frame, 1
1...Permanent magnet, 12...Plunger, 13...
Insulating cap, 13a, 13b...Latching groove, 14
...Reed switch.

Claims

[Scope of utility model registration request]

A case having a bottomed cylindrical shape and having a fluid supply port on a bottom plate, a bellows housed in the case and having an opening on one side supported by the case and a pressure receiving plate facing the fluid supply port on the other side, and the bellows. a holding frame which is located inside and supported by the case, has a guide tube concentric with the bellows, and is provided with a plurality of hooks facing upward on the periphery of the outer tube; a guided plunger having one end in contact with the inner wall of the pressure receiving plate and a permanent magnet fixed to the other end; a cylindrical insulating cap rotatably held by the hook of the holding frame; In a pressure switch equipped with a permanent magnet and a reed switch disposed opposite to each other at a distance, the reed switch has locking grooves of equal pitch provided around the upper part of the insulating cap, and a reed switch that is selectively engageable with the locking grooves. A pressure switch characterized by having a locking protrusion provided on a hook of a holding frame.