CN210570868U

CN210570868U - Movement structure of diaphragm gas meter

Info

Publication number: CN210570868U
Application number: CN201922135731.8U
Authority: CN
Inventors: 邹诚; 张丽萍; 邹子明
Original assignee: Rongcheng Yuxiang Industrial Co ltd
Current assignee: Rongcheng Yuxiang Industrial Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-05-19
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a core structure of diaphragm type gas table. The problems that the core structure of the existing diaphragm gas meter is poor in sealing performance and inaccurate in metering are solved. The top of the machine core main body is provided with a support frame, the support frame comprises a connecting part and a fixing part, wherein the connecting part is arranged at the top of the machine core main body and is connected with the outer wall of the air outlet interface, the fixing part is arranged at one end, far away from the air outlet interface, of the connecting part, and the two upright posts are symmetrically and vertically arranged on the top of the fixing part. The utility model discloses need not vacate the position and the stand does not receive the influence of core main part deformation, stress concentration and vibration for the stand in the pressure seal technology, have the advantage that preparation simple process, product quality are stable.

Description

Movement structure of diaphragm gas meter

Technical Field

The utility model relates to a flow measuring gas instrument, a core structure of diaphragm type gas table.

Background

Gas meters are known as flow meters which are used to sum the volume of gas flowing through a pipe. The diaphragm gas meter is a commonly used existing gas meter, and the working principle of the diaphragm gas meter is that gas generates pressure difference at a gas inlet and a gas outlet of the diaphragm gas meter, the pressure difference pushes a diaphragm to move, the movement of the diaphragm can continuously reciprocate under the action of a gas distribution mechanism, the reciprocating movement is converted into circular movement through a transmission mechanism, then a counter is pushed through a gear transmission mechanism, the number of times of reciprocating movement of the diaphragm is counted, and the volume of the gas flowing through the diaphragm gas meter can be converted through the number of times of reciprocating movement of the diaphragm and the volume of a revolution body, so that the metering function is realized.

A common gas distribution mechanism, for example, a chinese patent application specification CN102116657A, which is applied by the applicant and published in 2011, 07/06, discloses a "gas meter credit acquisition device", in which a vertical shaft driven by a diaphragm in a metering cavity drives a large pull rod to swing, and a valve cover is shifted by a connecting rod, a central rotating shaft and a shift lever to control the flow direction of gas in the metering cavity.

The upright columns in the valve actuating mechanism are arranged on two sides of the air outlet end of the machine core through integral forming, and are influenced by position and size and often interfere with a press-fit plane of a metering chamber of the machine core. However, it is known that the metering chamber of the mechanical diaphragm gas meter is formed by press-sealing a core and a cover plate, in the press-sealing process, a worker needs to press and fold the toothed claws around the cover plate by 90 ° to make the toothed claws grip the metering chamber of the core, and as the pressing planes of the upright posts and the metering chamber of the core interfere with each other, the toothed claws around the cover plate often need to be cut to vacate positions for the upright posts during press-sealing, which makes the manufacturing process of the cover plate complicated and reduces the sealing strength of the metering chamber. In addition, in the press sealing process and the working process of the gas meter, the movement is stressed to generate deformation, stress concentration and vibration, and the upright posts are interfered to cause poor metering accuracy, so that the product quality is influenced.

Disclosure of Invention

The valve mechanism in order to overcome current diaphragm type gas table has that the manufacturing process is loaded down with trivial details, the leakproofness is poor, the measurement is inaccurate, product quality is unstable not enough, the utility model provides a core structure of diaphragm type gas table rational in infrastructure, simple, the leakproofness of preparation simple process, measurement are good, product quality is accurate, product quality is stable.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a core structure of diaphragm type gas table, its includes a core main part and coexistence post the both sides of core main part be equipped with a measurement chamber respectively, be equipped with the interface of giving vent to anger, its characterized in that in the one end at core main part top: the top of core main part be equipped with a support frame, the support frame include a connecting portion and a fixed part, the connecting portion setting at core main part top, it is connected with the outer wall of the interface of giving vent to anger, the fixed part setting keep away from the one end of the interface of giving vent to anger at connecting portion, coexistence post symmetry, vertical setting on the top of fixed part.

And a reinforcing rib plate is arranged between the upright post and the support frame.

The utility model is provided with a support frame on the top of the machine core main body, the support frame comprises a connecting part and a fixing part, wherein, the connecting part is arranged on the top of the machine core main body and is connected with the outer wall of the air outlet interface, the fixing part is arranged at one end of the connecting part far away from the air outlet interface, the two upright posts are symmetrically and vertically arranged on the top of the fixing part, the structure is reasonable, and the manufacturing process is simple; the fixed parts of the supporting frame are respectively far away from the machine core main body, which avoids the interference with the machine core main body, compared with the prior structure, the utility model has no need of vacating the position for the upright post in the press sealing process, and the sealing performance is good; in the press sealing process and the working process of the gas meter, the upright column is not influenced by the deformation, stress concentration and vibration of the machine core main body, the metering is accurate, and the product quality is stable.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

3 fig. 3 2 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 a 3- 3 a 3 in 3 fig. 3 1 3. 3

The labels in the figure are: 1. the machine core comprises a machine core main body, 2 stand columns, 3 metering cavities, 4 air outlet ports, 5 supporting frames, 51 connecting parts, 52 fixing parts and 6 reinforcing rib plates.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

As shown in fig. 1, a movement structure of a membrane gas meter includes a movement body 1 and two vertical columns 2.

As shown in fig. 1 and 2, a metering chamber 3 is respectively disposed at two sides of the movement main body 1, and an air outlet port 4 is disposed at one end of the top of the movement main body 1.

A supporting frame 5 is arranged at the top of the machine core main body 1.

In fig. 2, the supporting frame 5 includes a connecting portion 51 and a fixing portion 52, wherein the connecting portion 51 is disposed on the top of the movement body 1 and connected to the outer wall of the air outlet port 4, the fixing portion 52 is disposed at one end of the connecting portion 51 far away from the air outlet port 4, and the two upright posts 2 are symmetrically and vertically disposed on the top of the fixing portion 52. A gap exists between the fixing part 52 of the support frame 5 and the movement body 1, which avoids direct contact with the movement body 1 and frees space for cover plate pressure sealing; meanwhile, the two upright columns 2 are not influenced by deformation, stress concentration and vibration of the machine core main body 1.

In order to reinforce the connection between the upright 2 and the support 5, a reinforcing rib 6 is provided between the upright 1 and the support 5, as shown in fig. 2.

In this embodiment, the movement body 1, the upright 2, the air outlet port 4, the support frame 5, and the reinforcing rib 6 may be formed by one-step molding using a commercially available Polyoxymethylene (POM) material.

The utility model discloses a set up the support frame at the top of core main part to through the position of the fixed coexistence post of support frame, make the stand avoid interfering with the core main part mutually, when it vacates the position in the press seal technology for the apron, reduce the core main part because of warping, stress concentration and vibration to the influence of stand, its is rational in infrastructure, preparation simple process, the pressfitting leakproofness is good, the measurement is accurate, product quality is stable.

Claims

1. The utility model provides a core structure of diaphragm type gas table, its includes a core main part and coexistence post the both sides of core main part be equipped with a measurement chamber respectively, be equipped with the interface of giving vent to anger, its characterized in that in the one end at core main part top: the top of core main part be equipped with a support frame, the support frame include a connecting portion and a fixed part, the connecting portion setting at core main part top, it is connected with the outer wall of the interface of giving vent to anger, the fixed part setting keep away from the one end of the interface of giving vent to anger at connecting portion, coexistence post symmetry, vertical setting on the top of fixed part.

2. The movement structure of a membrane gas meter according to claim 1, characterized in that: and a reinforcing rib plate is arranged between the upright post and the support frame.