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Check valve special for water meter

A technology of check valves and water meters, which is applied in the direction of measuring devices, instruments, liquid/fluid solid measurement, etc., to achieve the effect of simplifying pipelines, reducing pipeline components, and reducing connection links and components

Active Publication Date: 2010-06-09
浙江世进水控股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the defects of the existing check valves for water meters, and provides a special check valve for water meters with a joint connection. There are many problems in the technology, and it has good practicability and market prospects

Method used

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  • Check valve special for water meter
  • Check valve special for water meter
  • Check valve special for water meter

Examples

Experimental program
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Embodiment Construction

[0019] The preferred embodiment 1 of the check valve of the present invention will be further described below with reference to the accompanying drawings.

[0020] figure 2 It is a schematic cross-sectional view of a special check valve for water meters according to the present invention. The check valve includes a valve body 1. The valve body 1 is generally cylindrical in shape. The connecting end 10 of the valve body 1 has an annular protruding portion 11. The part 11 is in the shape of a flange with a bevel at the inner end, and a union nut 2 is set on the annular protruding part 11. There is an annular groove 20 at the right end of the inner diameter of the union nut 2, and a retaining spring 21 is housed in the annular groove 20. Circlip 21 is installed on the right end of the annular protruding part 11 of connecting end 10, and the inner diameter of circlip 21 is less than the outer diameter of annular protruding part 11, and circlip 21 limits union nut 2 to move in con...

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Abstract

The invention relates to a check valve connected with a water meter. The check valve comprises a valve body; a loose joint screw cap is arranged at the connecting end of the valve body; the inner diameter of the loose joint screw cap is an internal thread section matched with external threads of the water meter; the loose joint screw cap is internally provided with a gasket seal matched with the end face of the connecting end; the cavity of the valve body is provided with a check device; the valve body is provided with a first exhaust hole and a second exhaust hole which are respectively and correspondingly connected with a first exhaust valve and a second exhaust valve; and the first exhaust valve and the second exhaust valve are arranged on two sides of the check device. The special check valve for the water meter adopts a loose joint screw cap structure and has convenient and reliable installation; detection holes and the exhaust valves are added, thus the functions of measuring pressure, exhausting, draining and the like can be achieved; in addition, the invention has favorable market generalization value.

Description

technical field [0001] The invention relates to a check valve connected with a water meter. Background technique [0002] When connecting water meter pipes in households or industries, a check valve is usually installed at the back end of the water meter to prevent the backflow of water in the pipes, resulting in impact and pollution on the water meter and pipe components. At present, the connection between the water meter and the check valve is realized through a connecting pipe fitting. Such as figure 1 As shown, the right end of the water meter 1' is provided with an external threaded end 10', and the external threaded end 10' is connected with a union fitting 2'. 'and then connect with the check valve 4'; realize the connection of the check valve of the water meter. [0003] The check valve used for the water meter mentioned above has many connecting pipe parts, high cost, and slow construction speed; especially in terms of safety, there are many connection points bet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F15/00G01F15/10
Inventor 林岳华周礼黄晓峰刘锐艾琼林
Owner 浙江世进水控股份有限公司
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