Hydraulic operating mechanism, control valve and primary valve of control valve

A technology for hydraulically operating and controlling valves, which is applied to engine components, fluid pressure actuating devices, valve details, etc. It can solve problems such as manual operation of the spool and achieve the effect of improving work efficiency

Active Publication Date: 2019-12-10
PINGGAO GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a control valve with manual operation function to solve the problem that the existing control valve cannot manually operate the valve core; the purpose of the present invention is also to provide a hydraulic control valve using the control valve. actuator and the main valve of the control valve

Method used

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  • Hydraulic operating mechanism, control valve and primary valve of control valve
  • Hydraulic operating mechanism, control valve and primary valve of control valve
  • Hydraulic operating mechanism, control valve and primary valve of control valve

Examples

Experimental program
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Effect test

Embodiment 2

[0036] Embodiment 2, the difference between embodiment 2 and embodiment 1 is: the main valve of the control valve does not include an operating rod, and the operating rod is provided separately; when the control valve works, a blocking member, such as a screw plug, is used to seal the main valve body Plug the operating rod perforation on the top; when maintenance is required, first remove the blocking member, and then operate when the operating rod is passed into the operating rod perforation.

Embodiment 3

[0037] Embodiment 3, the difference between embodiment 3 and embodiment 1 is: one end of the operating part is screwed to the main valve spool through a threaded structure; when the main valve spool does not move in place, it is driven by pushing or pulling the operating rod The main valve spool moves.

Embodiment 4

[0038] Embodiment 4, the difference between embodiment 4 and embodiment 1 is that a spring for applying a reset force to the operating rod is provided between the operating rod and the main valve body. After the manual operation is completed, the operating rod will Automatic reset.

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PUM

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Abstract

The invention relates to a hydraulic operating mechanism, a control valve and a primary valve of the control valve. The control valve comprises the primary valve and a secondary valve arranged on theprimary valve. The primary valve comprises a primary valve body and a primary valve element arranged in the primary valve body. The position, corresponding to the end of the primary valve element, ofthe primary valve body is provided with an operating rod penetration hole allowing an operating rod to penetrate through so as to drive the primary valve element to move. The primary valve further comprises a blocking part used for blocking the operating rod penetration hole. In case of misoperation, when the primary valve element does not move to the right position and two primary valve ports arenot blocked, the blocking part is dismantled, the operating rod penetration hole is opened, the operating rod is inserted into the primary valve to drive the primary valve element to motion to blockthe primary valve element on one side, and the system stores energy again. Thus, when maintained, the control valve does not need to be dismantled from the mechanism, operations such as oil drainage,oil injection, wire connection, cleaning and wiping are avoided, and the working efficiency is greatly improved.

Description

technical field [0001] The invention relates to a control valve with manual operation function, a main valve of the control valve and a hydraulic operating mechanism using the control valve. Background technique [0002] The electromagnetic control valve is the core component of the hydraulic operating mechanism, which is used to convert the electrical signal of the opening or closing command issued by the control room into a hydraulic signal and amplify it, and control the operating mechanism to perform opening, closing and automatic reclosing actions , Drive the circuit breaker body to realize opening, closing and automatic reclosing operations. At present, the electromagnetic control valve used in the hydraulic operating mechanism is mainly a two-position three-way control valve, such as a hydraulic control valve disclosed in the Chinese invention patent application with the publication number CN106783422A and the publication date of 2017.05.31. [0003] The control valv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F16K11/065F16K27/04F16K27/08
CPCF15B13/021F16K11/065F16K27/04F16K27/08
Inventor 李海文刘宇刘煜雷琴胡月萍王双盾
Owner PINGGAO GRP
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