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Zero leakage inserting installation one-way valve

A cartridge type, one-way valve technology, applied in the direction of control valve, valve device, functional valve type, etc., can solve the problem of zero leakage of one-way valve, achieve good reverse sealing performance, reduce surface accuracy requirements, size small effect

Active Publication Date: 2014-01-08
SHANGHAI XINYUE METER FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a zero-leakage plug-in check valve. The problem of zero leakage to the valve, especially suitable for hydraulic circuits with special requirements for reverse sealing

Method used

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Embodiment Construction

[0022] The following is a detailed description of the embodiments of the present invention: this embodiment is implemented on the premise of the technical solution of the present invention, and provides detailed implementation methods and specific operation processes. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

[0023] Please also see figure 1 with figure 2 .

[0024] Such as figure 1 As shown, this embodiment provides a zero-leakage plug-in check valve, including: a valve core 4, a valve seat 2, a spring 3, a compression nut, a sealing ring and a retaining ring, wherein the guide of the valve core 4 The shaft is placed in the valve seat 2, the O-shaped sealing ring 7 is installed on the V-shaped groove formed by the valve core 4 and the valve seat 2, one end of the spring 3 is sleeved on t...

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Abstract

The invention provides a zero leakage inserting installation one-way valve which comprises a valve element, a valve seat, a spring, a compression nut, sealing rings and stopping rings. A guiding shaft of the valve element is arranged in the valve seat, one end of the spring is arranged on a location shaft of the valve element in a sleeved mode, the other end of the spring is arranged in a location hole of the compression nut in a sleeved mode, the compression nut is connected with the valve seat, the first stopping ring and the first sealing ring are arranged in a sealing groove of the compression nut to be sealed, the second stopping ring and the second sealing ring are arranged in a sealing groove of the valve seat, a V-type groove structure is formed between the valve element and the valve seat, and an O-type sealing ring is arranged in a V-type groove. According to the zero leakage inserting installation one-way valve, a sealing structure mode that the V-type groove is combined with the O-type sealing ring is adopted, the reverse sealing performance is good, and the zero leakage requirement can be met. Meanwhile, the zero leakage inserting installation one-way valve has the advantages of being low in manufacturing cost, reliable in working performance, high in reliability, small in size, light in weight, compact in structure, convenient to operate, easy to disassemble and assemble and the like, and the zero leakage inserting installation one-way valve is suitable for systems with compact space structures.

Description

technical field [0001] The invention relates to the technical field of one-way valves, in particular to a zero-leakage plug-in one-way valve. Background technique [0002] The check valve is a valve that allows the oil to pass in only one direction. The main performance requirements are that the pressure loss should be small when the oil passes in one direction, the sealing performance should be better when the reverse direction is blocked, the action is sensitive, and there is no impact and damage during operation. noise. [0003] The check valve for the servo mechanism is mainly used for the auxiliary pump test, and it has a reverse cut-off effect on the high-pressure oil established by the pump, and can maintain zero leakage. When the servomechanism is in the state of standing still for a long time, it can keep the hydraulic oil in the oil tank from leaking. That is to say, the reverse sealing of the check valve can meet the requirement of zero leakage under high and lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/02
CPCF15B13/027F16K15/025
Inventor 余三成刘永波
Owner SHANGHAI XINYUE METER FACTORY
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