JPS61127544U

JPS61127544U -

Info

Publication number: JPS61127544U
Application number: JP1048685U
Authority: JP
Priority date: 1985-01-30
Filing date: 1985-01-30
Publication date: 1986-08-11
Also published as: JPH0110832Y2

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示すもので、第１図は
全体の縦断面図、第２，３，４図はそれぞれ作動
状態を示す各断面図、第５図は低圧側の皿ばねの
圧力に対する変位を示す説明図、第６図は中圧側
の反転円板の圧力に対する変位を示す説明図、第
７図は高圧側の反転円板の圧力に対する変位を示
す説明図、第８図は従来のスイツチの断面図であ
る。１２……ホルダー、１４……作動凸部、１６…
…ガイド部、１７……皿ばね、２０……第１ロツ
ド、２２……第２反転円板、２５……ピストン、
２９……第１反転円板、３６……第１電気開閉器
、４３……第２電気開閉器、４５……第２ロツド
。 The drawings show an embodiment of the present invention; Fig. 1 is a longitudinal sectional view of the whole, Figs. 2, 3, and 4 are sectional views showing the operating states, and Fig. 5 shows the pressure of the disc spring on the low pressure side. 6 is an explanatory diagram showing the displacement of the inversion disk on the medium pressure side with respect to pressure. FIG. 7 is an explanatory diagram showing the displacement of the inversion disk on the high pressure side with respect to pressure. FIG. 3 is a sectional view of the switch. 12... Holder, 14... Operating convex portion, 16...
... Guide part, 17 ... Disc spring, 20 ... First rod, 22 ... Second reversing disk, 25 ... Piston,
29...First reversing disk, 36...First electric switch, 43...Second electric switch, 45...Second rod.

Claims

[Scope of utility model registration request]

In a pressure switch, a diaphragm is airtightly fixed between an upper body and a lower body having a pressure introduction port to form a pressure receiving chamber in the upper body, and first and second electric switches are provided in the lower body, A perforated piston having a first inverting disk that inverts downwardly mounted on the upper surface and a second perforated inverting disk that inverts upwardly mounted on the lower surface is housed in a holder so as to be movable up and down, and the holder is accommodated in the lower body so as to be movable up and down, and the middle part of this holder has an actuating protrusion that inverts the second inversion disk upward, and a cylindrical first rod with a head in the center that can be moved up and down. A movably mounted guide part is provided, and a disc spring having a hole inserted through the guide part is hung on the lower body wall, and below the disc spring are the first and second electric switches at different heights. The upper end of the elongated second rod passes through the hole in the piston, the second reversing disk, the first rod, and the first electric switch, and the upper end of the second rod is fixed to the first reversing disk, and the lower end is fixed to the first reversing disk. A three-action pressure switch comprising a second electric switch and a lower end of the first rod in contact with the first electric switch.