Hydraulic control check valve

A hydraulically controlled check valve and valve body technology, applied in the field of hydraulic control valves, can solve the problem that the opening of the hydraulically controlled check valve cannot be fine-tuned and controlled, and achieve the effect of fine-tuned flow control

Active Publication Date: 2018-03-23
广西中源机械有限公司 +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a hydraulically controlled check valve capable of fine-tuning the opening of the valve port in view of the problem that the opening of the valve port of the existing hydraulically controlled check valve cannot be fine-tuned and controlled.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydraulic control check valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The specific implementation will be described below in conjunction with the accompanying drawings.

[0017] The hydraulic control check valve in the present invention includes a valve body 16, and a working oil passage 19 is arranged in the valve body. The flow from the working port to the working C2 oil port is forward flow, and the flow from the working C2 oil port to the working V2 oil port is reverse flow. The main spool 1 is arranged on the working oil passage 19, and the main spool 19 is located in the valve body. Axial slide is made in 16, and this axial direction is defined as left-right direction, main spool moves to the left, and working oil passage 19 times main spool cuts off and closes, and main spool moves to the right, and working oil passage 19 is opened.

[0018] A valve sleeve 6 is arranged in the valve body 1, and the valve sleeve 6 is inserted into the valve body 16 through a threaded connection. 4, pressure regulating spring 5, adjusting screw 9. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a hydraulically controlled check valve, in order to solve the problem that the opening of the existing hydraulically controlled check valve cannot be fine-tuned and controlled; it provides a hydraulically controlled check valve, in which V2 and C2 oil ports are arranged on the valve body, and a main valve is arranged inside spool, pilot spool, return spring, axially sliding spring seat, pressure regulating spring, screw adjustment mechanism for adjusting the pre-tightening force of the pressure regulating spring, the S2 chamber on the left side of the main spool communicates with the C2 oil port through the first oil passage , the diameter of the left end of the pilot spool is smaller than the diameter of the right end of the stepped shaft. The stepped position of the pilot spool is in the S4 cavity, and the S4 cavity is connected with the pilot control oil port. The small diameter shaft of the pilot spool is matched with the blind hole at the right end of the main spool. , between the pilot spool and the spring seat is the S5 cavity, and the S5 cavity is connected to the oil return port; the return spring is located in the S5 cavity; there is a through hole in the pilot spool as the pressure relief oil connecting the blind hole of the main spool and the S2 cavity road. The one-way valve of the present invention can be opened in the forward and reverse directions, and at the same time, fine-tuning control of the flow rate can also be realized.

Description

technical field [0001] The invention relates to a hydraulic control valve, in particular to a hydraulic control check valve. Background technique [0002] The hydraulic control check valve is a component widely used in machine tools, engineering machinery, ships and military technical equipment, which usually allows reverse flow after the hydraulic pressure is opened. This type of valve is used for the isolation of the part of the hydraulic circuit, that is, to prevent the load from falling when the pipeline fails and the load drops slowly due to the leakage of the spool. It is relatively difficult to control the opening of the valve port in the existing hydraulic control check valve, and cannot perform the function of fine-tuning the opening of the valve port. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a hydraulically controlled check valve capable of fine-tuning the opening of the valve port in view of th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): F16K15/18F16K31/12F15B13/02
CPCF15B13/027F16K31/12F16K15/1826
Inventor 朱庆轩王宜前蒋拓李国真
Owner 广西中源机械有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap