JPH0243621U

JPH0243621U -

Info

Publication number: JPH0243621U
Application number: JP12192188U
Authority: JP
Priority date: 1988-09-17
Filing date: 1988-09-17
Publication date: 1990-03-26
Anticipated expiration: 2003-09-17
Also published as: JPH0613458Y2

Description

[Brief explanation of drawings]

図面は本考案の実施例を示し、第１図はガスメ
ータの縦断面図、第２図は第１図の左側断面図、
第３図は第２図のケースの上部を外した平面図、
第４図は回転バルブと磁石の関係を示す平面図、
第５図は第４図の縦断面図、第６図は他の実施例
の回転バルブと磁石の関係を示す平面図、第７図
は第６図の縦断面図である。６……回転バルブ、８……クランク軸、３４…
…ダイヤフラム膜、７０……磁石、７２……流量
センサ。 The drawings show an embodiment of the present invention; FIG. 1 is a longitudinal sectional view of a gas meter, FIG. 2 is a left sectional view of FIG. 1,
Figure 3 is a plan view of the case in Figure 2 with the top removed;
Figure 4 is a plan view showing the relationship between the rotary valve and the magnet;
5 is a longitudinal sectional view of FIG. 4, FIG. 6 is a plan view showing the relationship between a rotary valve and a magnet in another embodiment, and FIG. 7 is a longitudinal sectional view of FIG. 6. 6...Rotary valve, 8...Crankshaft, 34...
...Diaphragm membrane, 70...Magnet, 72...Flow rate sensor.

Claims

[Claims for Utility Model Registration] (1) A rotary valve that converts the reciprocating motion of a diaphragm membrane based on the pressure difference of gas flowing inside the measuring chamber body into rotational motion of a crankshaft, and rotates in conjunction with the rotational motion. In a gas flow rate detection device for a gas meter configured to alternately switch the gas pressure acting on both sides of the diaphragm membrane to be an inflow gas pressure or an outflow gas pressure, A gas flow rate detection device for a gas meter, comprising: a plurality of magnets arranged along a circumference around a center; and a flow rate sensor that senses the movement of the magnets and generates a pulse signal that integrates and displays the gas flow rate. (2) The reciprocating motion of the diaphragm membrane based on the pressure difference of the gas flowing inside the metering chamber body is converted into the rotational motion of the crankshaft, and a rotary valve that rotates in conjunction with the rotational motion is used to move the diaphragm membrane on both sides of the diaphragm membrane. A gas flow rate detection device for a gas meter configured to alternately switch the applied gas pressure to be an inflow gas pressure or an outflow gas pressure, comprising: a multipolar magnet provided at the center of rotation on the upper surface of the rotary valve; A gas flow rate detection device for a gas meter, which is equipped with a flow rate sensor that detects the movement of and generates a pulse signal that integrates and displays the gas flow rate.