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Diaphragm gas meter with non-return device

A membrane gas meter and non-return technology, which is applied in the direction of measuring devices, instruments, liquid/fluid solid measurement, etc., can solve the problems of support deformation, complex structure, and many parts, so as to ensure stability, compact assembly, The effect of fewer parts

Pending Publication Date: 2021-11-23
XIAN HANGLI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems in the prior art of complex structure, many parts, and deformation of the bracket under force, the invention provides a diaphragm gas meter with a reverse flow prevention device

Method used

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  • Diaphragm gas meter with non-return device
  • Diaphragm gas meter with non-return device
  • Diaphragm gas meter with non-return device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] like Figure 5-12 As shown, the diaphragm gas meter with a non-return device includes a bracket 100, a transition gear 200, a non-return cylinder (210) and a non-return pin 300, the bracket 100 is fixedly connected to the housing of the diaphragm gas meter, and the transition gear 200 Driven by the crank gear of the membrane gas meter to rotate and cooperate with the transmission wheel, the transition gear 200 is rotated and installed on the bracket 100. The transition gear 200 is axially symmetrically provided with two non-return cylinders 210 with downward openings, and the non-return The cylinder 210 and the transition gear 200 are integrated into one body. The check pin 300 is slidably installed in the check cylinder 210. The check pin 300 is a round shaft pin made of 304 stainless steel. The check pin 300 can move along the direction of the check cylinder 210 under the action of gravity. Slide down, the runway groove 110 is set on the motion track of the check pin ...

Embodiment 2

[0045] As shown in Fig. 5-13, this embodiment is improved and optimized on the basis of the first embodiment.

[0046] The diaphragm gas meter with the non-return device further includes a compression spring 400 installed between the top of the non-return pin 300 and the bottom of the non-return cylinder 210 .

[0047] In this way, when the non-return pin 300 passes through the track groove 110, the non-return pin 300 can slide out of the non-return cylinder 210 more smoothly; Under the force of deformation, it can still slide out from the anti-reverse cylinder 210, so as to prevent the reverse rotation of the transition gear 200.

[0048] Furthermore, the use effect of the present invention can be effectively improved.

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PUM

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Abstract

The invention discloses a diaphragm gas meter with a non-return device, which comprises a support, a transition gear, a non-return pin and a non-return cylinder. The support is fixedly connected with a movement of the diaphragm gas meter. The transition gear is driven by a crank gear of the diaphragm gas meter to rotate and matched with a transmission wheel, and the transition gear is rotationally installed on the support. The transition gear is provided with the non-return cylinder with a downward opening, and the non-return pin is installed in the non-return cylinder in a sliding mode. A runway groove is formed in the top face of the support, and the runway groove is formed in the motion trail of the non-return pin. When the transition gear rotates forwards, the non-return pin can slide out of the runway groove, and when the transition gear rotates reversely, the non-return pin is limited by the runway groove. When the transition gear rotates reversely, the sliding of the non-return pin is limited by a limiting face, so that the function of preventing the transition gear from rotating reversely is achieved, and the accuracy of the metering result is guaranteed. The structure is simple, the number of parts is small, the assembly is compact, and the support is not prone to deformation.

Description

technical field [0001] The invention relates to the field of membrane gas meters, in particular to a membrane gas meter with a non-return device. Background technique [0002] Membrane gas meter is a flow meter for measuring combustible gas. Among them, the structure of the more commonly used rotary membrane gas meter is as follows: figure 1 As shown, the gas enters the metering chamber from the air inlet and pushes the diaphragm to swing freely. The movement of the diaphragm assembly drives the connecting rod 09 through the rocker 08 and makes the valve cover 010 rotate, thereby controlling the inflating and exhausting of each metering chamber in turn. , so that the gas meter moves in a continuous cycle, wherein the connecting rod 09 drives the crank gear 06 to rotate, the crank gear 06 drives the output wheel 05 through the transition gear 04, and the output wheel 05 drives the counter to count, and finally the counter displays the gas volume of the gas meter, thereby real...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F15/18
CPCG01F15/18
Inventor 张向召周文辉刘彦君冯鑫欧阳浩宇马振奇牛乐陈青玉李少锋范珍星
Owner XIAN HANGLI TECH CO LTD