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Delay valve without piston

A time-delay valve and no-piston technology, applied to valve details, diaphragm valves, valve devices, etc., can solve the problems of inconvenient maintenance, complex structure, high cost, etc., and achieve the effect of avoiding waste, wide range of production materials, and simple structure

Inactive Publication Date: 2004-11-03
刘星良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, small holes or small grooves on the cylinder wall inject water into the cylinder cavity, push the piston down, and delay until the valve port is closed again. Its disadvantages are that the structure is complex, the cost is high, and it is easy to leak water. The button or valve handle needs to be artificially sprayed. Clean, inconvenient to maintain

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0016] See Figure 1. The inner space of the special-shaped valve cover 1 is the water-air chamber 2. When the water-air chamber is normally closed, the lower part of the water-air chamber is filled with a certain amount of tap water, and the upper part is compressed air, whose pressure is equal to that of the water supply. The damping hole nozzle 5 is riveted on the eccentric side of the cup to communicate with the water supply. The small damping hole is easily attached by rust and affects normal use. Therefore, a trembling needle 6 is interspersed in the damping hole. The needle moves slightly under the action of water flow. It can prevent the adhesion of rust and the clogging of impurities. Changing the trembling needles with different diameters can adjust the delayed self-closing time. When water is needed, touch the downward-hanging "dripping" "T"-shaped pressure relief lever 7 to release the pressure of the water in the water-air chamber of the special-shaped valve cover,...

Embodiment 2

[0018] As shown in Figure 1, the structure of this embodiment is basically the same as that of the previous embodiment, the difference is that the air cushion uses other flexible or fluid materials to fill the water and air chamber instead of air, and the same principle can achieve the effect of delayed self-closing. It is still possible to process the no-piston time-delay handwashing valve into the shape shown in Figure 3, and the top of the special-shaped valve cover is clamped to a similar dish-shaped movable small plate 14, which is for placing, washing products, trinkets, etc., beautiful and practical.

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Abstract

A delay valve without piston for washing hand in toilet room a floating central rubber bowl with central pressure-releasing hole and eccentrical damping hole in which a vibrating needle is inserted is installed to valve seat. A shaped upper valve cover contains air as delay medium. It is sealed by water pressure. Its advantages include simple and reliable sealing, low cost, flexible opening it and self cleaning of valve handle.

Description

(1) Technical field: [0001] The invention relates to a time-delay self-closing handwashing valve for toilets. (two) background technology: [0002] The existing time-delay self-closing valve has a general structure, and the valve flap that closes the valve port is made into a piston shape, one end closes the valve port, and the other end can slide in a cylinder cavity. There is a small damping hole in the cylinder cavity or it is against the cylinder wall The gap communicates with the water supply, and there is an orifice on the piston that communicates with the drain pipe. When the water is not flushed, the orifice is closed. The cylinder cavity is filled with water and equal to the water supply pressure, so that the valve disc is pressed against the valve port. As long as the orifice is opened briefly when flushing, the water in the cylinder cavity is depressurized, the piston is pushed up by the water pressure, and the valve opens. At the same time, small holes or small ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K7/17F16K21/12F16K31/126
Inventor 刘星良刘影棠
Owner 刘星良
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