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Reliably-sealed metering instrument shell

A technology for measuring instruments and shells, which is applied in the field of reliable and sealed measuring instrument shells, and can solve problems such as affecting product quality, high requirements for production technology, and easy movement of the gasket position

Pending Publication Date: 2019-10-15
GOLDCARD HIGH TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, when the gasket method is used, the gasket is placed on the bottom plate without a positioning structure, and the location of the gasket is easy to move, which affects the sealing performance; to ensure good sealing performance, the operator needs to concentrate on manual methods. Ensure that the gasket is installed in place, and its production process requirements are high
When glue is used for sealing, since the bottom plate and the shell are matched, one side of the interior is open. During the extrusion impact process of the shell, the sealant will be sprayed from the open side to the inside of the base meter shell, affecting the gas meter. The accuracy of measurement accuracy affects product quality

Method used

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  • Reliably-sealed metering instrument shell
  • Reliably-sealed metering instrument shell
  • Reliably-sealed metering instrument shell

Examples

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specific Embodiment 1

[0030] Such as Figure 2 ~ Figure 6 As shown, in this embodiment, an electronic gas meter is taken as an example, the first housing 1 is the base meter housing, the second housing 2 is the bottom plate or side plate, and the bottom plate or side plate is provided with A protrusion 20 adapted to the seal. The sealing element is entirely sleeved on the outer peripheral side of the protrusion 20 . Of course, the housing of the base meter is provided with an air inlet and an air outlet, and is also provided with components such as valves, metering modules and module fixing parts inside. The sealing member is a rubber gasket 3, and the rubber gasket 3 is flexible and deformable, and has good sealing performance. Gasket 3 can adopt nitrile butadiene rubber. The sealing pad 3 is provided with a positioning rib 31 , and the protrusion 20 is formed with a positioning groove 21 matched with the positioning rib 31 , and the positioning rib 31 is matched with the positioning groove 21 ...

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Abstract

The invention relates to the technical field of metering instrument protection safety, in particular to a reliably-sealed metering instrument shell. The reliably-sealed metering instrument shell comprises a first shell and a second shell which is matched with the first shell, wherein a sealing part is arranged between the first shell and the second shell; the first shell or the second shell is provided with a bump matched with the sealing assembly; the first shell is a base meter shell; the second shell is a bottom plate or a side plate; and the bottom plate or the side plate is provided witha bump matched with the sealing part. Through adoption of the reliably-sealed metering instrument shell, good positioning for the sealing part is realized, and the sealing effect is achieved. Meanwhile, the edge periphery of the bump can hermetically contacted with the inner wall of the shell, so that the sealing area is enlarged, and the sealing effect is improved further.

Description

technical field [0001] The invention relates to the technical field of measuring instrument protection and safety, in particular to a reliably sealed measuring instrument housing. Background technique [0002] As we all know, common metering instruments all contain a base meter part that accommodates fluid on and off. Taking the gas meter as an example, in order to ensure that the gas does not leak out during the working process, it is necessary to ensure that the space between the base meter case and the bottom plate (or side plate) (or the upper case and the lower case) is sealed after installation. There are two types of sealing methods for the existing casing and the bottom plate: one is to use a gasket for sealing. When the gasket sealing method is used (for details, refer to figure 1 ) The bottom plate and the lower end of the shell are flat planes, the shape of the gasket is consistent with the shape of the bottom plate, and the cross-section is flat or circular. D...

Claims

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Application Information

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IPC IPC(8): G01F15/14
CPCG01F15/14
Inventor 祁二骆
Owner GOLDCARD HIGH TECH
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