CN220227335U - Combined hydraulic control valve - Google Patents
Combined hydraulic control valve Download PDFInfo
- Publication number
- CN220227335U CN220227335U CN202321463407.9U CN202321463407U CN220227335U CN 220227335 U CN220227335 U CN 220227335U CN 202321463407 U CN202321463407 U CN 202321463407U CN 220227335 U CN220227335 U CN 220227335U
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- valve
- oil return
- hydraulic control
- way
- jack
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- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 50
- 239000010727 cylinder oil Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
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Abstract
The application provides a combination formula hydraulic control valve, include the three-position four-way solenoid valve of being connected with the joining in marriage the flow valve, three-position four-way solenoid valve draws forth the A oil return way of being connected with the stretch-draw jar of jack to and the B oil return way of being connected with the return cylinder of jack, and all be equipped with the relief valve on A oil return way and the B oil return way, be equipped with the pilot operated check valve between A oil return way and B oil return way, be equipped with spherical solenoid valve between pilot operated check valve and stretch-draw jar. The combined type hydraulic jack has the advantages that the combined type hydraulic jack is designed, the action of the jack can be accurately controlled through the cooperation of the A oil return path and the B oil return path, damaged parts can be conveniently replaced, the maintenance cost is low, and the maintenance is convenient.
Description
Technical Field
The application relates to the technical field of hydraulic control, in particular to a combined hydraulic control valve.
Background
The hydraulic control valve (hydraulic valve for short) is an important component of the intelligent tensioning system of the prestressed tendons, and the hydraulic control valve has the functions of controlling and adjusting the flow direction, pressure and flow of oil in the hydraulic system so as to enable an actuator and a driving working mechanism thereof to obtain the required movement direction, thrust, movement speed and the like. However, the existing hydraulic valves mostly adopt an integrated structure, so that the whole hydraulic valve is scrapped due to the damage of individual elements, and the hydraulic valve is high in maintenance cost and inconvenient to maintain. To this end, the inventors have proposed a combination hydraulic control valve.
Disclosure of Invention
The utility model aims at providing a modular hydraulic control valve, its part that can be convenient for change damage has cost of maintenance low, easy maintenance's advantage.
Embodiments of the present application are implemented as follows:
the application provides a combination formula hydraulic control valve, include the three-position four-way solenoid valve of being connected with the joining in marriage the flow valve, three-position four-way solenoid valve draws forth the A oil return way of being connected with the stretch-draw jar of jack to and the B oil return way of being connected with the return cylinder of jack, and all be equipped with the relief valve on A oil return way and the B oil return way, be equipped with the pilot operated check valve between A oil return way and B oil return way, be equipped with spherical solenoid valve between pilot operated check valve and jack stretch-draw jar.
The combined type hydraulic jack has the advantages that the combined type hydraulic jack is designed, the action of the jack can be accurately controlled through the cooperation of the A oil return path and the B oil return path, damaged parts can be conveniently replaced, the maintenance cost is low, and the maintenance is convenient.
In an alternative embodiment, the output end of the distributing valve is connected with the input end of the three-position four-way electromagnetic valve.
In an alternative embodiment, the input end of the safety valve is connected with the output end of the three-position four-way electromagnetic valve.
In an alternative embodiment, the output of the relief valve is connected to the input of the hydraulic check valve.
In an alternative embodiment, the output of the hydraulic check valve is connected to the input of the ball solenoid valve.
In an alternative embodiment, the output end of the spherical solenoid valve is connected to a tensioning cylinder.
In an alternative embodiment, the end of the oil return a is provided with a pressure gauge.
In an alternative embodiment, the tensioning cylinder is depressurized after the spherical solenoid valve opens.
In an alternative embodiment, the tensioning cylinder oil pressure pressurizes the B return after 0 to open the pilot operated check valve.
In an alternative embodiment, the oil is sent to the return cylinder through the hydraulic control check valve after the oil return channel B is pressurized.
Drawings
Exemplary embodiments of the present application will be described in detail below with reference to the attached drawings, and it should be understood that the embodiments described below are only for the purpose of explaining the present application and not limiting the scope of the present application, wherein:
FIG. 1 is a schematic illustration of a combination hydraulic control valve according to an embodiment of the present application;
FIG. 2 is a control circuit diagram of a hydraulic control valve according to an embodiment of the present application;
reference numerals:
10. a flow distribution valve;
20. a hydraulically controlled one-way valve;
30. a three-position four-way electromagnetic valve;
40. a spherical solenoid valve;
50. a safety valve;
60. a pressure gauge.
Detailed Description
Example 1
Referring to fig. 1-2, in the present embodiment, the combined hydraulic control valve includes a three-position four-way solenoid valve 30 connected to a distributing valve 10, an a oil return path connected to a tensioning cylinder of a jack and a B oil return path connected to a return cylinder of the jack are led out from the three-position four-way solenoid valve 30, safety valves 50 are respectively arranged on the a oil return path and the B oil return path, a hydraulic control one-way valve 20 is arranged between the a oil return path and the B oil return path, and a spherical solenoid valve 40 is arranged between the hydraulic control one-way valve 20 and the tensioning cylinder of the jack.
According to the embodiment, the combined type design is adopted, so that the action of the jack can be accurately controlled through the cooperative cooperation of the A oil return path and the B oil return path, damaged parts can be conveniently replaced, and the combined type hydraulic jack has the advantages of being low in maintenance cost and convenient to maintain.
In this embodiment, when the combined hydraulic control valve as the control element controls the action of the jack as the execution element, the action is realized through the cooperative cooperation of the oil return path a and the oil return path B, wherein the principle of the oil return path a is as follows: the tensioning oil way is used for carrying out tensioning construction by reversing an oil return way A through a three-position four-way electromagnetic valve 30 by a distributing valve 10, oil pressure is sent to a tensioning cylinder of a jack, when the design pressure is reached, the jack is decompressed, decompression oil return is controlled by two elements in a distributed mode, the first oil return is controlled by a spherical electromagnetic valve 40, the tensioning cylinder of the jack is decompressed after the spherical electromagnetic valve 40 is opened, oil returns to an oil tank, the second oil return is carried out after the return oil pressure of the tensioning cylinder is about 0, the spherical electromagnetic valve 40 is closed, the three-position four-way electromagnetic valve 30 is used for reversing an oil return way B, the hydraulic control one-way valve 20 is pressurized and opened, the jack returns, and the oil of the tensioning cylinder returns to the oil tank. The principle of the oil return path B is as follows: the return oil way is used for reversing the return oil way B through the three-position four-way electromagnetic valve 30 by the distributing valve 10, and sending the oil pressure to the return cylinder of the jack so as to return the piston of the jack to the original position.
In order to prevent the oil pressure of the oil return path A and the oil return path B from losing control, the adjustable safety valve 50 is arranged on the two oil paths, and the pressure of the oil return path A and the pressure of the oil return path B can be adjusted to the required pressure during use.
In this embodiment, alternatively, the output end of the distributing valve 10 is connected to the input end of the three-position four-way electromagnetic valve 30, the input end of the safety valve 50 is connected to the output end of the three-position four-way electromagnetic valve 30, and the output end of the safety valve 50 is connected to the input end of the hydraulic check valve 20, meanwhile, the output end of the hydraulic check valve 20 is connected to the input end of the spherical electromagnetic valve 40, and the output end of the spherical electromagnetic valve 40 is connected to the stretching cylinder of the jack, and in order to control the oil pressure conveniently, a pressure gauge 60 is arranged at the end of the oil return path a.
After the spherical solenoid valve 40 is opened, the tensioning cylinder of the jack is depressurized, the hydraulic check valve 20 is opened by pressurizing the oil return path B after the tensioning cylinder oil pressure is 0, and the oil is sent to the return cylinder of the jack through the hydraulic check valve 20 after the oil return path B is pressurized.
Although embodiments of the present application have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.
Claims (10)
1. The combined hydraulic control valve is characterized by comprising a three-position four-way electromagnetic valve connected with a flow distribution valve, wherein an A oil return path connected with a tensioning cylinder of a jack and a B oil return path connected with a return cylinder of the jack are led out from the three-position four-way electromagnetic valve, safety valves are arranged on the A oil return path and the B oil return path, a hydraulic control one-way valve is arranged between the A oil return path and the B oil return path, and a spherical electromagnetic valve is arranged between the hydraulic control one-way valve and the tensioning cylinder.
2. A combination hydraulic control valve according to claim 1, wherein,
the output end of the flow distribution valve is connected with the input end of the three-position four-way electromagnetic valve.
3. A combination hydraulic control valve according to claim 2, wherein,
the input end of the safety valve is connected with the output end of the three-position four-way electromagnetic valve.
4. A combination hydraulic control valve according to claim 3, wherein,
the output end of the safety valve is connected with the input end of the hydraulic control one-way valve.
5. A combination hydraulic control valve according to claim 4, wherein,
the output end of the hydraulic control one-way valve is connected with the input end of the spherical electromagnetic valve.
6. A combination hydraulic control valve according to claim 5, wherein,
the output end of the spherical electromagnetic valve is connected with the tensioning cylinder.
7. The combination hydraulic control valve of claim 6, wherein,
and a pressure gauge is arranged at the tail end of the oil return path A.
8. The combination hydraulic control valve of claim 7,
and the tensioning cylinder is depressurized after the spherical electromagnetic valve is opened.
9. The combination hydraulic control valve of claim 8, wherein,
and the hydraulic control check valve is opened by pressurizing the oil return path B after the oil pressure of the tensioning cylinder is 0.
10. The combination hydraulic control valve of claim 9, wherein,
and (B) after the oil return channel is pressurized, delivering the oil to the return cylinder through the hydraulic control one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321463407.9U CN220227335U (en) | 2023-06-09 | 2023-06-09 | Combined hydraulic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321463407.9U CN220227335U (en) | 2023-06-09 | 2023-06-09 | Combined hydraulic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220227335U true CN220227335U (en) | 2023-12-22 |
Family
ID=89185790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321463407.9U Active CN220227335U (en) | 2023-06-09 | 2023-06-09 | Combined hydraulic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220227335U (en) |
-
2023
- 2023-06-09 CN CN202321463407.9U patent/CN220227335U/en active Active
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