Low-resistance check valve

A check valve, low resistance technology, applied in the direction of control valve, valve device, functional valve type, etc., can solve problems such as large action resistance, lack of check ability, liquid leakage, etc., to achieve fast closing response speed and good sealing effect. , Good resistance to return effect

Pending Publication Date: 2019-02-22
GUANGDONG YONGQUAN VALVE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But this kind of check valve still has some problems, one is that the action resistance of opening and closing is still relatively large; the other is that the check ability after closing is still lacking, and leakage occurs from time to time; the third is product maintenance , the replacement of rubber wearing parts is cumbersome

Method used

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Embodiment Construction

[0028] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .

[0029] The present invention as Figure 1-Figure 2 As shown, a low-resistance check valve includes a valve seat 1 and a valve flap 2 arranged on the valve seat 1, and the valve flap 2 is reset by a reset mechanism 3 arranged on the valve seat 1, so A torsion mechanism 4 for accelerating the opening and closing of the valve flap 2 is provided between the valve flap 2 and the valve seat 1 . Utilize the torque mechanism 4 to accelerate the closing speed of the check valve, that is to say, the torque mechanism 4 can assist the original reset mechanism 3 when the check valve is closed, so that the closing speed is faster, that is to say, the closing respon...

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Abstract

The invention discloses a low-resistance check valve and relates to a check valve, in particular to improvement on a check valve structure in the prior art. The low-resistance check valve is quick inswitching-on and switching-off response and small in action resistance. The low-resistance check valve comprises a valve seat and a valve clack, wherein the valve clack is arranged on the valve seat.The valve clack resets through a reset mechanism arranged on the valve seat. A twisting force mechanism is arranged between the valve clack and the valve seat, wherein the twisting force mechanism isused for accelerating opening and closing of the valve clack. According to the low-resistance check valve, by means of the twisting force mechanism, the switching-off speed of the check valve is accelerated, and in other words, the check valve is higher in switching-off response speed. When water comes, the check valve is switched on; each transmission force arm passes through a rolling wheel arranged at one end, and the rolling wheels are driven to slide along the side wall through the water pressure; the switching-on resistance is reduced, and the resistance formed when the check valve is switched on is reduced; and the switching-on speed is higher, the switching-on time is shorter, and in other words, the response speed of the check valve is increased.

Description

technical field [0001] The invention relates to a check valve, in particular to an improvement on the structure of the check valve in the prior art. Background technique [0002] The check valve is a commonly used check valve device in the liquid pipeline, which is used to prevent the liquid from flowing backward in the pipeline. However, when it is used, it is found that the water flow resistance is large when it is opened, the action process is slow, and the sealing performance is poor when it is closed. [0003] Aiming at the slow action process of the check valve in the prior art, a low-resistance check valve structure is provided in the prior art, for example, an invention patent (CN206159553U, a new Low-resistance check valve structure) utilizes one end of the valve seat to be evenly equipped with three sets of spring groups, and the spring groups provide axial sealing force for the disc, so that the check valve is in a normally closed state. When the disc moves axial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/18
CPCF16K15/18
Inventor 霍达文
Owner GUANGDONG YONGQUAN VALVE TECH
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