Counter structure of diaphragm gas meter

Abstract

The invention discloses a diaphragm gas meter counter structure. The diaphragm gas meter counter structure comprises a counter frame, a character wheel assembly and a gear assembly, wherein the character wheel assembly and the gear assembly are rotationally installed on the counter frame. The structure is characterized in that the left edge of the counter frame is provided with a left plug-in mounting structure, and the right edge of the counter frame is provided with a right plug-in mounting structure; the left side inserting structure and the right side inserting structure are used for beingmatched with corresponding inserting holes in the bottom plate to achieve rapid assembly. The diaphragm gas meter counter structure has the advantages that the number of parts and machining procedures can be reduced, the universality and compatibility of the counter frame are improved (by using gear trains with different transmission ratios, the counter frame is suitable for diaphragm gas metersof various types and specifications with different rotation volumes and different display metering units), the assembly efficiency is improved, and the product quality is better ensured.

Description

technical field [0001] The invention belongs to the field of membrane gas meters, and in particular relates to a membrane gas meter counter structure. Background technique [0002] Membrane gas meter is a common gas metering instrument. The working principle of membrane gas meter is: [0003] When the flowing gas passes through the gas meter, it is blocked by the friction of the pipeline and the mechanism, and the internal gas will generate a pressure difference between the inlet and outlet of the gas meter. This pressure difference pushes the diaphragm of the membrane gas meter to move in the metering chamber, and Drive the gas distribution mechanism for coordinated gas distribution, so that the movement of the diaphragm can be continuously reciprocated. The membrane gas meter converts the linear reciprocating motion into circular motion through the internal mechanical structure, and then drives the mechanical roller counter to rotate through the circular motion; every ti...

AI Technical Summary

Problems solved by technology

[0006] 1. Not only the bottom plate is composed of multiple parts, but also the assembly steps are many and the structure is complex

[0007] 2. There is still a difficult situation in the assembly of the counter rack: the counter is clamped with the left bracket of the bottom plate, and the bracket is suspended in the air. The alignment is troublesome and affects the assembly efficiency. The right side needs to be fixed with M4 screws

[0008] 3. There is also the fact that the protruding height of the counter bracket is too high, protruding from the position of the sealing ring of the base meter, so that during the mass production and transfer process of the gas meter, the collision between the meter and the meter due to the transfer jitter will cause the shell to be scratched and the appearance will be damaged.

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