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Anti-backflow drainage control mechanism

A control mechanism and anti-backflow technology, which is applied in the mechanical field, can solve the problem of few suitable places for the water adding structure, and achieve the effect of small footprint and wide application range

Pending Publication Date: 2021-08-24
ZHEJIANG QIXI SANITARY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the above-mentioned problems existing in the prior art, and propose an anti-backflow drainage control mechanism, which solves the problem that the existing water adding structure has few suitable places

Method used

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  • Anti-backflow drainage control mechanism

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Experimental program
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Effect test

Embodiment 1

[0022] Such as figure 1 As shown, the anti-backflow drainage control mechanism includes a housing 1 with a water passage cavity 11 inside. The two ends of the housing 1 have a water inlet 12 and a water outlet 13 respectively. The cavity 11 is provided with a spool 2 and a spring. Wherein, the housing 1 also has a water inlet 15 connecting the water inlet 12 with the water chamber 11, a water outlet 16 connecting the water outlet 13 with the water chamber 11, and connecting the water outlet 14 with the water chamber 11. Connected drainage holes 17 and water inlet holes 15 are set on the side wall of the water chamber 11 near the water inlet 12 , and the water outlet holes 16 and drain holes 17 are set on the side wall of the water chamber 11 near the water outlet 13 . In this embodiment, the water inlet hole 15 and the drain hole 17 are arranged on both sides of the valve core 2 facing each other, and the number of the water outlet holes 16 is several and opened around the dr...

Embodiment 2

[0032] The technical solution of this embodiment is roughly the same as that of Embodiment 1, the difference is that: the outside of the valve core 2 is not provided with a guide ring 4, but the outside of the valve core 2 has a protruding guide part, the guide part is fixed with the valve core 2, and The outer surface of the guide part can abut against the side wall of the water passage cavity 11 . That is, the movement direction of the valve core 2 is limited by the way that the guide part fixed to the valve core 2 abuts against the inner wall of the water chamber 11 to ensure the stability of the movement of the valve core 2 .

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Abstract

The invention provides an anti-backflow drainage control mechanism, and belongs to the technical field of machinery. The problem that an existing water adding structure is suitable for few places is solved. The anti-backflow drainage control mechanism comprises a shell internally provided with a water passing cavity, the shell is further provided with a water inlet, a water outlet and a drainage port, and a valve element and an elastic piece are arranged in the water passing cavity; a water inlet hole for communicating the water inlet with the water passing cavity, a water outlet hole for communicating the water outlet with the water passing cavity and a drainage hole for communicating the drainage port with the water passing cavity are further formed in the shell, and the valve element can be close to the water inlet hole under the elastic force action of the elastic piece and block the water inlet hole; and the valve element can overcome the elastic action of the elastic piece to move under the action of water pressure at the water inlet hole so as to open the water inlet hole and block the drainage hole. The anti-backflow drainage control mechanism has the advantage of wide application range.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to an anti-backflow drainage control mechanism. Background technique [0002] Pipeline is the most commonly used conveying device for conveying fluid medium, and in the process of conveying fluid medium, if the conveying stops, there will be a large amount of fluid medium remaining in the pipeline, and the fluid medium remaining in the pipeline will flow back and so on. If it accumulates in the pipeline for a long time, it is easy to breed bacteria and pollute the medium, especially the residual accumulated water in the pipeline that transports drinking water. If it is drunk again, it will affect the health of users. [0003] For this reason, people have designed a kind of water adding structure that prevents backflow and accumulated water, and have applied for Chinese patent, and its application number is: 201620100470.X; Its authorized announcement number is: CN205371699U; The wat...

Claims

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Application Information

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IPC IPC(8): F16K11/044F16K15/06F16K27/02
CPCF16K11/044F16K15/063F16K27/0254F16K27/0263
Inventor 罗陆军
Owner ZHEJIANG QIXI SANITARY CO LTD