Check valve for water pump

A check valve and water pump technology, applied in pump elements, variable displacement pump parts, parts of pumping devices for elastic fluids, etc. Aging and other problems occur to achieve better sealing effect, high assembly efficiency and stable work.

Pending Publication Date: 2020-05-08
ZHEJIANG RIJING PUMP IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the above-mentioned check valve is used for a long time, the hinged position is prone to breakage, and the rubber and silica gel are prone to aging, and the service life is short.

Method used

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  • Check valve for water pump
  • Check valve for water pump
  • Check valve for water pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments:

[0026] See Figure 1 to Figure 6 , The present invention provides a check valve for a water pump, comprising a flange housing 1, a rotating shaft 2 and a non-return structure 3. The flange housing 1 is provided with a water inlet 4 and a water outlet 5, and the water inlet 4 It communicates with the water outlet 5, and the non-return structure 3 is hinged to the water outlet 5 of the flange shell 1 through the rotating shaft 2, so that the non-return structure 3 seals or opens the water outlet 5; the non-return structure 3 includes a rotating plate 6. The gasket 7 is connected to the counterweight plate 8. The gasket 7 is in a sealed connection with the water outlet 5. The counterweight plate 8 is made of stainless steel, rests on the gasket 7, and is connected and fixed with the rotating plate 6 by screws, so that The gasket 7 is fastened between t...

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PUM

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Abstract

The invention discloses a check valve for a water pump. The check valve for the water pump comprises a flange shell, a rotating shaft and a check structure, wherein the flange shell is provided with awater inlet end and a water outlet end, the water inlet end communicates with the water outlet end, and the check structure is hinged to the water outlet end position of the flange shell through therotating shaft, so that the check structure seals or opens the water outlet end; the check structure comprises a rotating plate, a sealing pad and a counterweight plate, wherein the sealing pad is insealing butt joint with the water outlet end, the counterweight plate abuts against the sealing pad, and is connected and fixed to the rotating plate through a screw, so that the sealing pad is fastened between the rotating plate and the counterweight plate; and the end face of the water outlet end is inclined downwards and outwards in the direction from the water inlet end to the water outlet endwith the upper edge as the starting point and the lower edge as the ending point. The check valve for the water pump is more obvious in overall check effect, good in check effect and long in servicelife.

Description

Technical field [0001] The invention belongs to the technical field of water pump accessories, and specifically relates to a check valve for a water pump. Background technique [0002] The water pump includes a pump body. The pump body is provided with a water inlet and a water outlet. A check valve is usually installed at the water inlet. The existing check valve is integrally formed of silicone or rubber material, including the shell and For the non-return plate, the non-return plate and the shell are connected only by an integrally formed hinge strip, and the flexibility and deformation of the silicone or rubber material make the non-return plate reversible relative to the shell. The above-mentioned check valve is prone to breakage at the hinged position when used for a long time, and rubber and silica gel are prone to aging, and the service life is short. Summary of the invention [0003] The technical problem to be solved by the present invention is to provide a check valve ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/10F04B53/20F04B53/22
CPCF04B53/10F04B53/20F04B53/22
Inventor 莫利波蔡海军赵孔胜吴海军
Owner ZHEJIANG RIJING PUMP IND CO LTD
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