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Low-pressure maintenance valve with manual pressure relief function

A pressure relief valve, functional technology, applied in the direction of functional valve types, safety valves, balance valves, etc., can solve the problems of cumbersome sealing technology process, achieve good sealing performance, improve service life and wear resistance, and seal structure. simple effect

Active Publication Date: 2020-05-08
JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the design process of a certain type of civil aircraft steering gear, its product is required to have a manual pressure relief function during ground maintenance, and the existing sealing technology process is too cumbersome

Method used

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  • Low-pressure maintenance valve with manual pressure relief function
  • Low-pressure maintenance valve with manual pressure relief function

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] The invention proposes a low-pressure maintenance valve with manual pressure relief function, which realizes the low-pressure maintenance function during normal operation and can manually release pressure and discharge oil during ground maintenance. The sealing method of the square sealing ring and the edge retaining seat is adopted, the structure and process are simple, and the sealing performance is good. Through the selection of different seals and reliable connection, the low pressure during use is guaranteed to maintain the service life and pressure-holding characteristics of the valve.

[0025] The structure of the low pressure maintenance valve with manual pressure relief function is as follows: figure 1 shown. Including spool 1, square sealing ring 2, flange holder 3, valve seat 4, valve body 5, maintenance valve spring 6, valve seat end 7, s...

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Abstract

The invention relates to a low-pressure maintenance valve with a manual pressure relief function. The low-pressure maintenance valve with the manual pressure relief function comprises a valve core 1,a square sealing ring 2, a side pressing stop seat 3, a valve seat 4, a valve body 5, a maintenance valve spring 6, a valve seat tail end 7, a spring seat 8, a locking gasket 9, a nut 10, a pin shaft11, a manual pressure relief valve core 12, a knurling hand wheel 13, a pin shaft spring 14, a valve body protective ring 15, a valve body sealing ring 16, a pin shaft sealing ring 17, a pin shaft protective ring 18, a connecting plug pin 19, a valve seat protective ring 20 and a valve seat sealing ring 21. According to the low-pressure maintenance valve provided by the invention, a low pressure maintaining function of a pressure accumulator in normal work is realized; meanwhile, pressure can be relieved manually for discharging oil when ground maintenance is performed. In a sealing mode of the square sealing ring and the side pressing stop seat, the sealing performance is good, and the process is simple. Through the selection and use of different sealing pieces and reliable connection, the service life and the pressure maintenance characteristic of the low-pressure maintenance valve in use are ensured.

Description

technical field [0001] The invention belongs to the field of hydraulic engineering and relates to a low-pressure maintaining valve with manual pressure relief function. Background technique [0002] In the design process of a certain type of civil aircraft steering gear, its product is required to have a manual pressure relief function during ground maintenance, and the existing sealing technology process is too cumbersome. Contents of the invention [0003] Purpose of the present invention: [0004] The invention proposes a low-pressure maintenance valve with manual pressure relief function, which realizes the low-pressure maintenance function during normal operation and can manually release pressure and discharge oil during ground maintenance. [0005] The technical scheme that the present invention takes is: [0006] Holder seat 3, valve seat 4, valve body 5, maintenance valve spring 6, valve seat end 7, spring seat 8, lock washer 9, nut 10, pin shaft 11, manual press...

Claims

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Application Information

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IPC IPC(8): F16K17/04F16K17/164F16K17/168F15B13/02
CPCF16K17/0486F16K17/164F16K17/168F15B13/022F15B13/024Y02T50/40
Inventor 姬伟徐传胜张嘉睿袁侃辉邵声扬
Owner JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA