CN212509040U - Valve group - Google Patents
Valve group Download PDFInfo
- Publication number
- CN212509040U CN212509040U CN202020837323.7U CN202020837323U CN212509040U CN 212509040 U CN212509040 U CN 212509040U CN 202020837323 U CN202020837323 U CN 202020837323U CN 212509040 U CN212509040 U CN 212509040U
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- China
- Prior art keywords
- valve
- port
- oil
- hydraulic control
- pressure
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Fluid-Pressure Circuits (AREA)
- Safety Valves (AREA)
Abstract
A valve group comprises a valve body, a pressure stabilizing and safety valve, a hydraulic control reversing valve, a cone valve and a remote pressure monitoring valve. The pressure stabilizing safety valve, the hydraulic control reversing valve, the cone valve and the remote pressure monitoring valve are all arranged on the valve body. The pressure oil port of the pressure stabilizing valve safety valve, the oil port B of the cone valve, the P port of the hydraulic control reversing valve, the control oil port of the left end face of the hydraulic control reversing valve and the remote pressure monitoring valve are connected in parallel and externally connected with a locking oil cavity of the oil cylinder, the working oil port of the hydraulic control reversing valve is connected with a large cavity of the cone valve, the oil return port of the hydraulic control reversing valve is connected with a T port oil return box, the port B and the port A of the cone valve are sealed by conical ring surfaces to form three areas, and the area of the large cavity is larger. The invention can remotely control the oil cylinder with higher working pressure in a hydraulic control mode, and has the functions of locking and safety protection of the oil cylinder, reduction of peak pressure impact and remote pressure monitoring.
Description
Technical Field
The invention relates to a valve group.
Background
Remote control is implemented in a hydraulic control mode for the oil cylinder with higher working pressure, and the locking of the oil cylinder can be realized, and the hydraulic system for safely protecting the oil cylinder is difficult all the time.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the valve bank which can remotely control the oil cylinder with higher working pressure in a hydraulic control mode, and has the functions of locking the oil cylinder, protecting safety, reducing peak pressure impact and monitoring remote pressure.
The technical scheme adopted by the invention for solving the technical problems is as follows: the designed valve group comprises a valve body, a pressure stabilizing safety valve, a hydraulic control reversing valve, a cone valve and a remote pressure monitoring valve, wherein the pressure stabilizing safety valve, the hydraulic control reversing valve, the cone valve and the remote pressure monitoring valve are all installed on the valve body, a pressure oil port of the pressure stabilizing safety valve, an oil port B of the cone valve, a P port of the hydraulic control reversing valve and a control oil port on the left end face of the hydraulic control reversing valve are connected in parallel and externally connected with a locking oil cavity of an oil cylinder, a working oil port of the hydraulic control reversing valve is connected with a large cavity of the cone valve, an oil return port of the hydraulic control reversing valve is connected with a T port oil return box, a port B and a port of the cone valve are sealed by a conical ring surface to form three.
The working principle of the invention is as follows: locking function: when the Z1 port has no control pressure, the pressure of pressure oil (A2 port) in the oil cylinder cavity acts on the left end surface of the valve 3, the valve 3 works at the left position, A2 pressure oil enters the large cavity of the conical valve 4 through the left position of the valve 3, the pressure oil and the conical valve spring press the conical valve to the conical surface, and the non-leakage locking from B to A is realized; when the oil cylinder has no pressure, the large cavity spring of the conical valve 4 is used for pressing the conical surface to realize the leakage-free locking from B to A; the safety protection of the oil cylinder is realized, wherein when the pressure of A2 is too high and peak pressure occurs, the valve 2 is opened to realize peak pressure reduction and pressure relief; remote control: when the pressure controlled by Z1 reaches a certain pressure, the valve 3 is reversed, the pressure of the large cavity of the valve 10 is relieved through the valve 3, and oil passing from B to A is realized under the action of the pressure of A2; remote pressure monitoring: the valve 5 is connected for remote pressure monitoring.
The invention has the beneficial effects that: the hydraulic control system can be used for remotely controlling the oil cylinder with higher working pressure in a hydraulic control mode, and has the functions of locking the oil cylinder, protecting safety and monitoring remote pressure.
Drawings
Fig. 1 is a schematic diagram of the present invention.
In the figure, 1, a valve body 2, a pressure stabilizing safety valve, 3, a hydraulic control reversing valve, 4, a cone valve and 5, a remote pressure monitoring valve.
Detailed Description
As shown in fig. 1, a valve block according to an embodiment of the present invention includes a valve body 1, a pressure-stabilizing safety valve 2, a pilot-controlled directional valve 3, a cone valve 4, and a remote pressure monitoring valve 5. The remote pressure monitoring valve 5, the pressure stabilizing safety valve 2, the hydraulic control reversing valve 3 and the cone valve 4 are all arranged on the valve body. The pressure oil port of the pressure stabilizing safety valve 2, the oil port B of the cone valve 4, the remote pressure monitoring valve 5, the P port of the hydraulic control reversing valve 3 and the control oil port on the left end face of the hydraulic control reversing valve 3 are connected in parallel and externally connected with a locking oil cavity of the oil cylinder. The working oil port of the hydraulic control reversing valve 3 is connected with the large cavity of the cone valve 4, and the oil return port of the hydraulic control reversing valve 3 is connected with the T-port oil return tank. The port B and the port A of the cone valve 4 are sealed by cone ring surfaces to form three areas, and the area of a large cavity is larger than the action area of the port B.
Claims (1)
1. The utility model provides a valve bank, includes valve body, steady voltage relief valve, liquid accuse switching-over valve, cone valve, remote pressure monitoring valve, its characterized in that: the pressure stabilizing safety valve, the hydraulic control reversing valve, the cone valve and the remote pressure monitoring valve are all installed on the valve body, a pressure oil port of the pressure stabilizing safety valve, an oil port B of the cone valve, a P port of the hydraulic control reversing valve, a control oil port of the left end face of the hydraulic control reversing valve and the remote pressure monitoring valve are connected in parallel and externally connected with a locking oil cavity of the oil cylinder, a working oil port of the hydraulic control reversing valve is connected with a large cavity of the cone valve, an oil return port of the hydraulic control reversing valve is connected with a T port oil return box, the B port and the A port of the cone valve are sealed by conical ring faces to form three areas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020837323.7U CN212509040U (en) | 2020-05-19 | 2020-05-19 | Valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020837323.7U CN212509040U (en) | 2020-05-19 | 2020-05-19 | Valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212509040U true CN212509040U (en) | 2021-02-09 |
Family
ID=74380539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020837323.7U Expired - Fee Related CN212509040U (en) | 2020-05-19 | 2020-05-19 | Valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212509040U (en) |
-
2020
- 2020-05-19 CN CN202020837323.7U patent/CN212509040U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |