JPH03117186U

JPH03117186U -

Info

Publication number: JPH03117186U
Application number: JP2549090U
Authority: JP
Priority date: 1990-03-13
Filing date: 1990-03-13
Publication date: 1991-12-04
Anticipated expiration: 2004-01-26
Also published as: JPH063248Y2

Description

[Brief explanation of drawings]

第１図はガスメーターの遮断弁開閉表示機構の
断面図、第２図はその分解斜視図、第３図は円筒
型カムを示すもので、イは左側面図、ロは正面図
、ハは右側面図、ニは外周面展開図、第４図は開
弁状態の復帰軸と円筒型カムとの関係を示す斜視
図、第５図はその状態の開閉表示窓の正面図、第
６図は閉弁状態の復帰軸と円筒型カムとの関係を
示す斜視図、第７図はその状態の開閉表示窓の正
面図、第８図はガスメーターの一部破断側面図、
第９図はその正面図、第１０図はその平面図であ
る。第１１図は従来のガスメーターの遮断弁復帰
機構の断面図である。１……メーター本体、４……ガス流路、１０…
…遮断弁、１０ａ……弁軸、１５……円筒型カム
（カム部材）、１６……復帰軸ボツクス、１７…
…復帰軸、２０……復帰ばね、２１……表示ラベ
ル。 Figure 1 is a sectional view of the gas meter's shutoff valve opening/closing display mechanism, Figure 2 is an exploded perspective view of it, and Figure 3 shows the cylindrical cam, where A is a left side view, B is a front view, and C is a right side view. Figure 4 is a perspective view showing the relationship between the return shaft and the cylindrical cam in the valve open state, Figure 5 is a front view of the opening/closing display window in that state, and Figure 6 is a top view. A perspective view showing the relationship between the return shaft and the cylindrical cam in the valve closed state, FIG. 7 is a front view of the opening/closing display window in that state, and FIG. 8 is a partially cutaway side view of the gas meter.
FIG. 9 is a front view thereof, and FIG. 10 is a plan view thereof. FIG. 11 is a sectional view of a conventional shutoff valve return mechanism of a gas meter. 1...meter body, 4...gas flow path, 10...
...Shutoff valve, 10a...Valve shaft, 15...Cylindrical cam (cam member), 16...Return shaft box, 17...
...Return axis, 20...Return spring, 21...Display label.

Claims

[Scope of Claim for Utility Model Registration] A cutoff valve is provided in the gas flow path within the meter body and closes to shut off the gas flow path when an abnormality occurs, and the valve stem of the shutoff valve in the closed state is pushed. It has a return shaft for moving the shutoff valve, a cylindrical return shaft box that guides the axial movement of the return shaft, and a return spring that always biases the return shaft to the standby position. A gas meter equipped with a shutoff valve return mechanism for returning the shutoff valve to an open state by a cam, the cam being rotatably and axially movably provided in the return shaft box and axially movable in conjunction with the closing operation of the shutoff valve. a member, an interlocking means that connects the cam member and the return shaft so that they can rotate synchronously and are movable relative to each other in the axial direction; a guide means that rotates the cam member by a predetermined angle as the axis of the cam member moves; A cutoff valve opening/closing display mechanism for a gas meter, comprising: a display section provided at the operating end of a return shaft and indicating the rotational state of the return shaft;