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High frequency quick opening check valve

A check valve, high-frequency technology, applied in the direction of valve device, control valve, function valve type, etc., can solve the problems of wear, check valve spool stuck, switch not in place, etc., to reduce weight and improve stability , to ensure the effect of stability

Active Publication Date: 2020-10-13
HEFEI GENERAL MACHINERY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in production practice, this type of check valve often has problems such as spool jamming, serious guide wear, and inappropriate switches, which urgently need to be solved.

Method used

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  • High frequency quick opening check valve
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Effect test

Embodiment Construction

[0037] The structure and working process of the present invention are described in conjunction with the accompanying drawings.

[0038] Such as Figure 1-4 As shown, the high-frequency quick-opening check valve includes a valve body 1, a valve seat 21 fixed on the valve body 1, and a valve core 3 that moves up and down on the valve seat 21. The valve body 1 includes an upper valve body 12 and a lower valve body. The body 11 and the valve seat 21 are arranged in the valve cavity formed by the upper valve body 12 and the lower valve body 11, and the lower valve body 11 and the valve seat 21 are in sealing connection. The upper valve body 12 is provided with a limit rod 5 that restricts the valve core 3 from being pulled away from the valve seat 21 , and a spring 4 is sleeved on the limit rod 5 . The spring 4 is a cylindrical helical spring 4, one end of the spring 4 can be arranged on the lower end surface of the upper valve body 12, and can also be arranged on the limit rod 5 ...

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PUM

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Abstract

The invention belongs to the field of valves, and particularly relates to a high-frequency quick-opening check valve. The high-frequency quick-opening check valve comprises a valve body, a valve seatfixed to the valve body, and a valve element capable of moving up and down on the valve seat. The valve body and the valve seat are connected in a sealed mode. A groove is formed in the middle of theinner side face of the valve seat. An annular guide sleeve is arranged in the groove. The guide sleeve is in floating connection with the valve seat. The valve element moves in the guide sleeve and the valve seat. The high-frequency quick-opening check valve has the advantages that the guide sleeve is arranged in the valve seat and can move in the groove, the influence of eccentric wear can be reduced when the valve element moves in the valve seat, and thus, the situation that the check valve cannot be opened or closed in position due to the fact that the valve element gets stuck is avoided. The guide sleeve can slightly move in the groove so that reliable sealing between the valve element and the valve seat can still be ensured even if the axis of the sealing surface of the valve elementdeviates from the axis of a guide part.

Description

technical field [0001] The invention relates to the field of valves, in particular to a high-frequency quick-opening check valve. Background technique [0002] The function of this type of valve is to only allow the medium to flow in the forward direction and prevent the flow in the reverse direction. Usually, the check valve works automatically. When the fluid flows in the forward direction, the valve opens under the action of fluid pressure; when the fluid flows in the reverse direction, the valve closes due to the fluid pressure and the self-weight of the valve core, thereby cutting off the flow. [0003] The main structural forms of the check valve are swing type, lifting type, axial flow type, etc. The main technical characteristics are: 1. The swing check valve includes a hinge mechanism and a valve disc. One end of the valve disc is hinged by a hinge mechanism, and the other is One end rests freely on the inclined seat surface. 2. The lifting check valve, except tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K15/06
CPCF16K15/063
Inventor 陈凤官王渭王勤明友耿圣陶余宏兵高红彪叶晓节
Owner HEFEI GENERAL MACHINERY RES INST