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Water leakage prevention valve

A technology of valves and one-way valves, applied in valve details, control valves, valve devices, etc., can solve the problems of easy damage, not automatically stop continuous water leakage, etc., and achieve the effect of preventing water hammer from damaging water appliances

Active Publication Date: 2015-06-03
HANGZHOU KAMBAYASHI ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problems that water purifiers, water heaters and other water appliances are easily damaged by water hammer and that these water appliances will not automatically stop continuous water leakage when they leak, and therefore provide a water leakage protection valve of the present invention

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The water leakage protection valve of the present embodiment, such as figure 1 , figure 2 , Figure 5 As shown, there is a valve body 1. The valve body 1 has a water inlet 105 connected to the tap water pipe network and an intermediate water outlet 106 connected to the water appliance. The valve body has a water inlet chamber 101 and a water outlet chamber 102. The water inlet chamber and the water outlet chamber There is an elastic diaphragm 2 made of rubber material that can expand and collapse at the corresponding place between the valve seats. The diaphragm has a side through hole 201. The diaphragm can be round, oval or cabinet-shaped; There is a three-way valve cover 3, the opening at one end of the valve cover has a flange 301, the other end of the valve cover has a water outlet 302, and the other end of the valve cover has an intermediate water inlet 303 connected to the water appliance, and there is a three-way through valve cover. Cavity 304; the flange 301...

Embodiment 2

[0041] In this example, the water leakage protection valve, such as image 3 , Figure 5 , Image 6 As shown, a one-way valve 5 is provided at the middle water outlet 303 of the valve cover. The valve seat 501 of the one-way valve is matched with a valve disc 503 embedded with an O-ring 504 at the front, and a spring 503 is matched on the valve disc. Other structures are the same as those in Embodiment 1.

[0042] When the terminal valve is opened to use water, the one-way valve 5 is opened under the push of water pressure, and the water in the water appliance passes through the middle water outlet 303 and the water outlet 302 and finally flows out from the terminal valve.

[0043] When the terminal valve is closed, the valve disc 503 is pressed against the valve seat 501 under the action of the spring 502, and the one-way valve is closed to prevent the water in the back pressure chamber 103 and the three-way through chamber from flowing back to the water appliance.

[0044...

Embodiment 3

[0046] In this example, the water leakage protection valve, such as image 3 , Figure 7 As shown, a diaphragm plate 7 is arranged on the top of the diaphragm 2, and a protrusion 701 is provided on the diaphragm plate to be embedded in the side hole 201 of the diaphragm. The protrusion has a through hole 702, and an auxiliary spring 6 is arranged on the diaphragm plate. Made of a rigid material such as formed plastic, it moves up and down with the diaphragm. Other structures are the same as those in Embodiment 1.

[0047] The connection between the diaphragm plate and the diaphragm is not limited to the above-mentioned protrusion nesting method, and other matching methods may also be used.

[0048] When the terminal valve is closed, even when the tap water inlet pressure is low, the auxiliary spring 6 acts to ensure that the diaphragm 6 can more reliably close the valve seat and block the water inlet.

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Abstract

The invention relates to a water leakage prevention valve capable of preventing a water using appliance from being damaged by water hammers and water from continuously leaking. A valve body (1) is provided with a water inlet (105), a water inlet chamber (101) and a water outlet chamber (102). A three-way bonnet (3) is connected onto the valve body. An elastic diaphragm (2) which can be expanded and lifted up and can be depressed down is arranged on a valve seat between the water inlet chamber and the water outlet chamber of the valve body in a matched way. A side through hole (201) is arranged in the diaphragm. The valve body is provided with a middle water outlet (106). One end of the bonnet is an open end. The open end is matched with the valve body. The diaphragm is arranged at a position where the open end is matched with the valve body to form a backpressure chamber (103) between the diaphragm and the bonnet. The second end of the bonnet is provided with a water outlet (302). The other end of the bonnet is provided with a middle water inlet (303). A three-way through chamber (304) is arranged in the bonnet. A one-way valve is arranged at the middle water inlet of the bonnet and is usable in one way from the middle water inlet to the water outlet. The water leakage prevention valve can be used as a water inlet valve for the water using appliance.

Description

technical field [0001] The invention belongs to a valve, in particular to a valve capable of preventing water hammer damage and continuous water leakage of water appliances such as water purifiers and water heaters. Background technique [0002] Water purifiers, water heaters and other water appliances produced by manufacturers are generally directly connected to the water pipe network when installed and used at present. Even if the water inlet valve is generally configured, the valve is generally in a normally open state. The pressure of the water pipe network is directly applied to the various components of the internal flow path of the water appliance. There are many devices and appliances connected to the water pipe network. When a certain device, especially a device with a large water flow, quickly opens or closes the water flow path, the pressure of the water pipe network will change, and a pressure shock wave will be generated in the pipe network. The shock wave prop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/126F16K15/02
Inventor 王华邓睿
Owner HANGZHOU KAMBAYASHI ELECTRONICS
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