CN219570480U - Hydraulic valve group for opening and closing device - Google Patents
Hydraulic valve group for opening and closing device Download PDFInfo
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- CN219570480U CN219570480U CN202320581865.6U CN202320581865U CN219570480U CN 219570480 U CN219570480 U CN 219570480U CN 202320581865 U CN202320581865 U CN 202320581865U CN 219570480 U CN219570480 U CN 219570480U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The utility model relates to a hydraulic valve group for an opening and closing device, which comprises a valve block for integrating connectors, a two-position four-way electromagnetic directional valve, a three-position four-way electromagnetic directional valve, a hydraulic control one-way valve for preventing oil way backflow and a one-way throttle valve for adjusting the retraction speed of a hydraulic cylinder, wherein the two-position four-way electromagnetic directional valve and the three-position four-way electromagnetic directional valve are used for controlling the opening and closing state of an external hydraulic cylinder, a plurality of connectors comprise an oil port A, an oil port B, an oil port Ab, an oil port Bb, an oil port Ca and an oil port Cb, a pipeline is arranged in the valve block, the oil port Ca and the oil port Cb are respectively externally connected with a pressure gauge and are used for monitoring the working pressure of an oil inlet and an oil return port on the pipeline of the external hydraulic cylinder in real time, the oil port Ab and the oil port Bb are respectively connected with a stop valve in a closed state.
Description
Technical Field
The utility model relates to the technical field of hydraulic pressure, in particular to a hydraulic valve group for an opening and closing device.
Background
The connection between the hydraulic valves in the conventional hydraulic system adopts pipelines and joints, the connection is easy to generate leakage, vibration and noise, the connection is complex, the installation is very inconvenient, and the pipelines are longer and easy to generate pressure loss. The hydraulic integrated valve group adopts integrated configuration, and the hydraulic valve is integrated on the surface of a hydraulic valve block with a common oil way.
Compared with the defects of large pipe connection volume, complex integral structure, multiple easy leakage of pipeline joints, inconvenient installation and the like of a hydraulic system, the hydraulic integrated valve group realizes pipe-free connection among components, eliminates leakage, vibration and noise caused by oil pipes and pipe joints, and has the advantages of compact structure, small volume, less leakage, small pressure loss and convenient installation and maintenance.
Disclosure of Invention
The utility model aims to overcome the technical defects and provide the hydraulic valve group for the opening and closing device, which can realize the tubeless connection between parts, eliminate leakage, vibration and noise caused by oil pipes and pipe joints and has the advantages of compact structure, small volume, less leakage, small pressure loss and convenient installation and maintenance.
In order to achieve the technical purpose, the technical scheme of the utility model provides a hydraulic valve group for an opening and closing device, which comprises the following components: the hydraulic cylinder valve comprises a valve block used for integrating interfaces, a two-position four-way electromagnetic reversing valve, a three-position four-way electromagnetic reversing valve, a one-way valve used for preventing oil way backflow and a one-way throttle valve used for adjusting the retraction speed of the hydraulic cylinder, wherein the two-position four-way electromagnetic reversing valve and the three-position four-way electromagnetic reversing valve are used for controlling the opening and closing states of the external hydraulic cylinder, the interfaces comprise an A oil port, a B oil port, an Ab oil port, a Bb oil port, a Ca port and a Cb port, pipelines are arranged inside the valve block, the A oil port and the Ca port are communicated on the internal pipelines, the B oil port and the Cb port are communicated on the internal pipelines, the Ca port and the Cb port are respectively externally connected with a pressure gauge and are used for monitoring the working pressures of the oil inlet and the oil return port on the pipelines of the external hydraulic cylinder in real time, and the Ab oil port and the Bb oil port are standby working interfaces and are respectively externally connected with the stop valve and are in a closed state.
Compared with the prior art, the technical scheme of the utility model has the following beneficial technical effects:
1. all interfaces of the hydraulic valve group are arranged on one valve block, so that the hydraulic valve group is high in integration level, compact in structure and small in size;
2. the hydraulic valve group adopts a plate structure, so that the number of pipelines and joints is reduced, leakage, vibration and noise caused by oil pipes and pipe joints are eliminated, and the pressure loss is reduced;
3. the hydraulic valve group is integrated on the valve block, so that the installation and maintenance are convenient, the hydraulic valve adopts a plate structure, and the disassembly and the assembly are simple and convenient during the maintenance;
4. the hydraulic valve group is provided with a standby working oil port, and when a hydraulic source fails, mutual standby among valve blocks can be realized.
Drawings
FIG. 1 is a schematic diagram of a hydraulic valve set for an opening and closing device according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a hydraulic valve set for an opening and closing device according to a first view angle provided by an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a second view angle of a hydraulic valve set for an opening and closing device according to an embodiment of the present utility model;
FIG. 4 is a left side view of a hydraulic valve block for an opening and closing device according to an embodiment of the present utility model;
FIG. 5 is a top view of a hydraulic valve block for an opening and closing device according to an embodiment of the present utility model;
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 5, the present embodiment provides a hydraulic valve set for an opening and closing device, including: the hydraulic control device comprises a valve block 1 for integrating an interface, a two-position four-way electromagnetic directional valve 2, a three-position four-way electromagnetic directional valve 3, a hydraulic control one-way valve f for preventing backflow of an oil way and a one-way throttle valve g for adjusting the retraction speed of a hydraulic cylinder, wherein the two-position four-way electromagnetic directional valve 2 and the three-position four-way electromagnetic directional valve 3 are arranged on the valve block 1;
the two-position four-way electromagnetic directional valve 2 and the three-position four-way electromagnetic directional valve 3 are used for controlling the opening and closing states of an external hydraulic cylinder, a plurality of interfaces comprise an oil port A, an oil port B, an oil port Ab, an oil port Bb, an oil port Ca and an oil port Cb, pipelines are arranged in the valve block 1, the pipelines refer to oil path channels, the oil port A and the oil port Ca are communicated on the internal pipelines, the oil port B and the oil port Cb are communicated on the internal pipelines, the oil port Ca and the oil port Cb are respectively externally connected with a pressure gauge and are used for monitoring working pressures of an oil inlet and an oil return port on the pipeline of the external hydraulic cylinder in real time, and the oil port Ab and the oil port Bb are standby working interfaces and are respectively externally connected with a stop valve and are in a closed state.
The interfaces further comprise P, T, tx oil ports, wherein the P oil port is externally connected with a pressure oil way, the T oil port is externally connected with an oil return pipeline, the Tx oil port is externally connected with a backpressure-free oil return pipeline, the A oil port is externally connected with a rodless cavity oil port of an external hydraulic cylinder, and the B oil port is externally connected with a rodless cavity oil port of the external hydraulic cylinder.
Preferably, the pilot operated check valve f includes a first pilot operated check valve 4 and a second pilot operated check valve 5, the first pilot operated check valve 4 and the second pilot operated check valve 5 are connected in parallel on a pipeline, and one sides of the first pilot operated check valve 4 and the second pilot operated check valve 5 are respectively connected with the pipeline connected with the two-position four-way electromagnetic reversing valve 2 and the three-position four-way electromagnetic reversing valve 3.
The one-way throttle valve g comprises a first one-way throttle valve 6 and a second one-way throttle valve 7, one end of the first one-way throttle valve 6 is communicated with the oil port A, the other end of the first one-way throttle valve 6 is communicated with the first hydraulic control one-way valve 4, one end of the second one-way throttle valve 7 is communicated with the oil port B, and the other end of the second one-way throttle valve 7 is communicated with the second hydraulic control one-way valve 5.
In this embodiment, the two-position four-way electromagnetic directional valve 2, the three-position four-way electromagnetic directional valve 3, the first pilot operated check valve 4, the second pilot operated check valve 5, the first check throttle valve 6, and the second check throttle valve 7 are respectively mounted on the surface of the valve block 1 through screws, and the internal channels of the valve blocks 1 are respectively communicated with the internal oil paths of the valve blocks 1. The interface of the hydraulic valve group is integrated on the valve block 1, so that the installation and maintenance are convenient, and the hydraulic valve adopts a plate structure, so that the disassembly and assembly are simple and convenient during the maintenance; the integrated level is high, the structure is compact, and the volume is small; and the number of the pipelines and the joints is reduced, the leakage, vibration and noise caused by the oil pipe and the pipe joint are eliminated, and the pressure loss is reduced.
The first unidirectional throttle valve 6 and the pipeline between the first hydraulic control unidirectional valve 4 are also connected with an Ab oil port, the second unidirectional throttle valve 7 and the pipeline of the second hydraulic control unidirectional valve 5 are connected with a Bb oil port, and when a hydraulic source externally connected with the P, tx oil port fails, the Ab oil port and the Bb oil port can be respectively communicated with the first unidirectional throttle valve 6 and the second unidirectional throttle valve 7, so that the pipeline communication on the valve block 1 can be realized.
In this embodiment, when the two-position four-way electromagnetic directional valve 2 is switched to the right position and the three-position four-way electromagnetic directional valve 3 is in the left position for operation, the P oil port is connected to the second pilot operated check valve 5 and flows through the second pilot operated check valve 7 to the B oil port, the Tx side pipeline is disconnected, the first pilot operated check valve 4 is also disconnected, and at this time, the external hydraulic cylinder is extended, and the extension speed of the hydraulic cylinder is adjusted by adjusting the opening of the second pilot operated check valve 7; when the external hydraulic cylinder is completely extended, the three-position four-way electromagnetic directional valve 3 is in the left position, and the two-position four-way electromagnetic directional valve 2 is also switched to the left position, the pipeline on the side of Tx is communicated with the T oil port, so that the external hydraulic cylinder can be effectively locked and prevented from retracting.
When the three-position four-way electromagnetic directional valve 3 is switched to work in the right position and the two-position four-way electromagnetic directional valve 2 is in the right position, the P oil port is communicated with the first hydraulic control one-way valve 4 and flows through the first one-way throttle valve 6 to the A oil port, the pipeline on the Tx side is disconnected, the second hydraulic control one-way valve 5 is also disconnected, the external hydraulic cylinder is retracted, and the retraction speed of the hydraulic cylinder is regulated by regulating the opening of the first one-way throttle valve 6; when the external hydraulic cylinder is completely retracted, the three-position four-way electromagnetic directional valve 3 is still in the right position, the two-position four-way electromagnetic directional valve 2 is switched to the left position, and the pipeline on the side of Tx is communicated with the T oil port, so that the external hydraulic cylinder can be effectively locked to prevent the external hydraulic cylinder from extending.
The valve block 1 comprises a first valve block and a second valve block, when an external hydraulic source of the first valve block fails, the three-position four-way electromagnetic directional valve 3 is switched back to the middle position, when the two-position four-way electromagnetic directional valve 2 is switched to the right position, the same hydraulic valve group is respectively connected with Ab and Bb oil ports of the second valve block through Ab and Bb oil ports, a P, T, tx port of the second valve block is connected with an emergency hydraulic source, the two-position four-way electromagnetic directional valve 2 of the second valve block is switched to the right position, the three-position four-way electromagnetic directional valve 3 is switched to the left position to work, and the on-off state of the external hydraulic cylinder can be realized by switching on the standby hydraulic source. That is, the Ab and Bb oil ports are standby working interfaces of the hydraulic valve group, so that mutual standby among valve blocks is realized when the hydraulic source fails, and original equipment is not required to be disassembled.
Preferably, the valve block is in a plate-shaped structure, or in a block shape, a mounting seat is further mounted at the lower part of the valve block 1, the first hydraulic control one-way valve 4 and the second hydraulic control one-way valve 5 are arranged on one side surface of the valve block 1, and the two-position four-way electromagnetic reversing valve 2, the second one-way throttle valve 7 and the P oil port are arranged on one surface of the valve block 1; the connectors of the oil port, the B oil port, the Ab oil port and the Bb oil port are arranged on one surface of the valve block 1; tx port, P port, ca port, cb port are provided on one side surface of the valve block 1.
In summary, all interfaces of the hydraulic valve group are arranged on one valve block 1, so that the hydraulic valve group has high integration level, compact structure and small volume; the plate type structure is used, so that the number of pipelines and joints is reduced, leakage, vibration and noise caused by oil pipes and pipe joints are eliminated, and the pressure loss is reduced; the hydraulic valve group is integrated on the valve block 1, so that the installation and maintenance are convenient, the hydraulic valve adopts a plate structure, and the disassembly and the assembly are simple and convenient during the maintenance; the hydraulic valve group is provided with a standby working oil port, and when a hydraulic source fails, mutual standby among valve blocks 1 can be realized.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (5)
1. The hydraulic valve group for the opening and closing device is characterized by comprising a valve block used for integrating an interface, a two-position four-way electromagnetic directional valve, a three-position four-way electromagnetic directional valve, a hydraulic control one-way valve used for preventing oil way backflow and a one-way throttle valve used for adjusting the retraction speed of a hydraulic cylinder, wherein the two-position four-way electromagnetic directional valve and the three-position four-way electromagnetic directional valve are used for controlling the opening and closing state of an external hydraulic cylinder, a plurality of interfaces comprise an A oil port, a B oil port, an Ab oil port, a Bb oil port, a Ca port and a Cb port, pipelines are arranged in the valve block, the A oil port and the Ca port are communicated on an internal pipeline, the B oil port and the Cb port are communicated on an internal pipeline, the Ca port and the Cb port are respectively connected with a pressure gauge and are used for monitoring the working pressure of an oil inlet and an oil return port on the pipeline of the external hydraulic cylinder in real time, and the oil port and the Bb port are standby working interfaces and are respectively connected with the stop valve and are in a closed state.
2. The hydraulic valve set for an opening and closing device according to claim 1, wherein the plurality of ports further comprises P, T, tx ports, wherein the P port is externally connected with a pressure oil path, the T port is externally connected with an oil return line, the Tx port is externally connected with a back pressure-free oil return line, the a port is externally connected with a rodless cavity port of an external hydraulic cylinder, and the B port is externally connected with a rodless cavity port of the external hydraulic cylinder.
3. The hydraulic valve bank for the opening and closing device according to claim 2, wherein the hydraulic check valve comprises a first hydraulic check valve and a second hydraulic check valve, the first hydraulic check valve and the second hydraulic check valve are communicated in parallel on a pipeline, and one side of the first hydraulic check valve and one side of the second hydraulic check valve are respectively communicated with a pipeline connected with the two-position four-way electromagnetic reversing valve and the three-position four-way electromagnetic reversing valve.
4. The hydraulic valve set for an opening and closing device according to claim 3, wherein the one-way throttle valve comprises a first one-way throttle valve and a second one-way throttle valve, one end of the first one-way throttle valve is communicated with the port a, the other end of the first one-way throttle valve is communicated with the first pilot-operated one-way valve, one end of the second one-way throttle valve is communicated with the port B, and the other end of the second one-way throttle valve is communicated with the second pilot-operated one-way valve.
5. The hydraulic valve set for an opening and closing device according to claim 4, wherein the Ab oil port is further connected to a pipeline between the first one-way throttle valve and the first hydraulic control one-way valve, the Bb oil port is connected to a pipeline between the second one-way throttle valve and the second hydraulic control one-way valve, and when a hydraulic source externally connected to the P, tx oil port fails, the Ab oil port and the Bb oil port can be respectively connected to the first one-way throttle valve and the second one-way throttle valve, so that pipeline communication on the valve block can be realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320581865.6U CN219570480U (en) | 2023-03-20 | 2023-03-20 | Hydraulic valve group for opening and closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320581865.6U CN219570480U (en) | 2023-03-20 | 2023-03-20 | Hydraulic valve group for opening and closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219570480U true CN219570480U (en) | 2023-08-22 |
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ID=87648087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320581865.6U Active CN219570480U (en) | 2023-03-20 | 2023-03-20 | Hydraulic valve group for opening and closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219570480U (en) |
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2023
- 2023-03-20 CN CN202320581865.6U patent/CN219570480U/en active Active
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