Diaphragm type gas meter and movement thereof

A gas meter and movement technology, which is applied in the direction of measuring devices, instruments, liquid/fluid solid measurement, etc., can solve the problems of low assembly efficiency, poor sealing and reliability of the movement, and achieve quick and easy assembly, improved sealing performance, Strong and reliable sealing structure

Inactive Publication Date: 2017-08-18
DELIXI GROUP INSTRUMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects of poor airtightness, reliability and low assembly efficiency of the core in the prior art, so as to provide a gas meter core that is easy to assemble and has excellent sealing performance

Method used

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  • Diaphragm type gas meter and movement thereof
  • Diaphragm type gas meter and movement thereof
  • Diaphragm type gas meter and movement thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Such as figure 1 with figure 2 As shown, the gas meter movement includes a movement body 1 oppositely provided with a port 11; two side cover plates 2 are provided and are respectively sealed and connected to the port 11 of the movement body 1; The chip assembly 3 is arranged between the core body 1 and the side cover 2, and is used to divide the metering chamber formed by the core body 1 and the side cover 2 into two chambers; the core body The inner side of the port 11 of 1 is formed with an annular platform 12 for installing the diaphragm assembly 3, and the side cover 2 is formed with an embedded port 11 and the annular platform 12 to compress the diaphragm assembly 3 The annular boss 21, the first sealing surface 4 is formed between the annular boss 21 and the movement wall between the annular platform 12 and the port 11; the side cover 2 and the port 11 are fixed by a snap-fit ​​structure .

[0036]In the above structure, the annular boss 21 on the side cover ...

Embodiment 2

[0047] A diaphragm gas meter, comprising the gas meter movement described in any one of Embodiment 1.

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Abstract

The invention discloses a diaphragm type gas meter and a movement thereof. Circular platforms for installing diaphragm assemblies are formed on inner sides of ports of a movement body in the movement of the gas meter; circular raised bosses which are embedded into the ports and press the diaphragm assemblies with the circular platforms are formed on side cover plates; a movement wall among the circular raised bosses, the circular platforms and the ports form a first sealing surface; the side cover plates and the ports are fixed through clamping structures; the circular raised bosses formed on the side cover plates are embedded into the circular platforms positioned in the movement body, the clamping structures can firmly press the diaphragm assemblies between the movement body and the side cover plates. Seal assembly of the movement body, the diaphragm assemblies, and the side cover plate can be easily and rapidly achieved, and the formed sealed structure is firm and reliable; and the circular raised bosses and the movement wall form the first sealing surface while the circular raised bosses are embedded into the movement body, the seal area between the movement body and the side cover plates can be increased, and the seal performance of a metering chamber is greatly improved.

Description

technical field [0001] The invention relates to the technical field of gas meters, in particular to a membrane gas meter and its movement. Background technique [0002] With the increase of users who use natural gas or pipeline gas, the demand for gas meters is also increasing. In order to meet market demand, the production efficiency of gas meters should be improved; it is formed by assembling the core body, diaphragm assembly and side cover plate The metering chamber is the key structure of the gas meter, so the sealing performance of the metering chamber is particularly important. The main methods used to seal the movement body, diaphragm assembly and side cover in the prior art are: adhesive connection, this method During long-term use, due to the effect of air, the viscosity is slowly lost, and the sealing and reliability are poor; the bolts and nuts are connected together, which are connected by screws through the molded body, diaphragm assembly and side cover. The sc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F15/00
CPCG01F15/00
Inventor 黄文华朱长益王世科王文斌朱丹兵
Owner DELIXI GROUP INSTRUMENT CO LTD
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