CN216447211U - Multi-way reversing valve - Google Patents
Multi-way reversing valve Download PDFInfo
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- CN216447211U CN216447211U CN202122499630.6U CN202122499630U CN216447211U CN 216447211 U CN216447211 U CN 216447211U CN 202122499630 U CN202122499630 U CN 202122499630U CN 216447211 U CN216447211 U CN 216447211U
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- reversing
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Abstract
The utility model discloses a multi-way reversing valve, which relates to the field of reversing valves and comprises an oil inlet joint, a reversing joint and a tail joint which are sequentially and fixedly connected, wherein the oil inlet joint comprises a first middle position unloading valve, the reversing joint is provided with at least one reversing valve which is communicated in parallel, the tail joint comprises a second middle position unloading valve, the first middle position unloading valve and the second middle position unloading valve are both communicated with all the reversing valves in parallel, and the first middle position unloading valve and the second middle position unloading valve can unload at the same time. The multi-way reversing valve can reduce heat generation and heat dissipation cost.
Description
Technical Field
The utility model relates to the field of reversing valves, in particular to a multi-way reversing valve.
Background
The load sensing system is widely applied to hydraulic driving equipment in various industries due to energy conservation and good action coordination, the load sensing system mainly comprises a load sensing multi-way reversing valve and a load sensing plunger pump, but in some industries, a constant delivery pump is often selected to replace the load sensing system in order to save cost, and although the constant delivery pump still has action coordination, oil passes through a middle unloading valve of an oil inlet joint when the middle position of the multi-position reversing valve of the constant delivery pump is standby, the oil passing capacity of the middle unloading valve of the oil inlet joint is generally small, the oil pressure loss can be caused, the heating caused by the pressure loss can improve the oil temperature, and the large cost is needed for heat dissipation.
Disclosure of Invention
The utility model aims to provide a multi-way reversing valve, which is used for solving the problems in the prior art, reducing heat generation and reducing heat dissipation cost.
In order to achieve the purpose, the utility model provides the following scheme:
the utility model provides a multi-way reversing valve which comprises an oil inlet joint, a reversing joint and a tail joint which are sequentially and fixedly connected, wherein the oil inlet joint comprises a first middle unloading valve, the reversing joint is provided with at least one reversing valve which is communicated in parallel, the tail joint comprises a second middle unloading valve, the first middle unloading valve and the second middle unloading valve are communicated with the reversing valves in parallel, and the first middle unloading valve and the second middle unloading valve can unload at the same time.
Preferably, the reversing valve is provided with two parallel reversing valves.
Preferably, the unloading pressure of the first neutral unloading valve is the same as that of the second neutral unloading valve.
Preferably, the unloading pressure of the first neutral unloading valve and the second neutral unloading valve is 2.5 MPa.
Preferably, the tail coupler further comprises a valve body, the second middle position unloading valve comprises an oil duct and a valve core which are arranged in the valve body, one end of the valve core is connected with the valve body in a sliding mode, the other end of the valve core is arranged in the oil duct, and oil pressure in the oil duct can push the valve core to move so as to control the opening degree of the oil duct.
Preferably, the valve core comprises a spring seat, a spring and a slide valve, each end of the spring is respectively abutted against the spring seat and the slide valve, and oil pressure in the oil duct can push the spring to compress so as to control the opening degree of the oil duct.
Preferably, the valve core further comprises a positioning screw, the positioning screw is in threaded connection with the valve body, and when the positioning screw is in contact with the slide valve, the slide valve completely blocks the oil passage.
Preferably, the oil passage comprises an oil outlet passage and an oil inlet passage, one end of the oil inlet passage is communicated with the oil outlet passage, the valve core is arranged in the oil inlet passage, and oil pressure in the oil inlet passage can push the slide valve to move so as to control the communication state of the oil inlet passage and the oil outlet passage.
Preferably, the spring is a coil spring.
Preferably, the spring seat is fixed with the valve body in a threaded connection manner.
Compared with the prior art, the utility model has the following technical effects:
the utility model provides a multi-way reversing valve which comprises an oil inlet joint, a reversing joint and a tail joint which are fixedly connected in sequence, wherein the oil inlet joint comprises a first middle position unloading valve, the reversing joint is provided with at least one reversing valve which is communicated in parallel, the tail joint comprises a second middle position unloading valve, the first middle position unloading valve and the second middle position unloading valve are communicated with each reversing valve in parallel, the first middle position unloading valve and the second middle position unloading valve can unload at the same time, when the reversing valve in the reversing joint is standby and does not pass through oil liquid, the oil liquid can be unloaded through the first middle position unloading valve and the second middle position unloading valve in the oil inlet joint and the tail joint, the second middle position unloading valve in the tail joint shares the oil unloading amount, the unloading burden of the first middle position unloading valve is reduced, the heat generation when the oil liquid passes through the first middle position unloading valve is reduced, and the heat dissipation cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural view of a multi-way reversing valve provided in the present invention;
FIG. 2 is a schematic diagram of an internal oil path structure of the multi-way reversing valve of FIG. 1;
fig. 3 is a schematic view of a tail coupling structure of the multiple directional control valve of fig. 1.
In the figure: 1-oil inlet connection; 2-a reversing link; 3-tail connection; 4-a first neutral unloading valve; 5-a second neutral position unloading valve; 6-valve body; 7-a slide valve; 8-a spring; 9-spring seats; 10-positioning screw rod; 11-a multi-way reversing valve; 12-a valve core; 13-oil duct.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model aims to provide a multi-way reversing valve, which is used for solving the problems in the prior art, reducing heat generation and reducing heat dissipation cost.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The embodiment provides a multi-way directional valve 11, as shown in fig. 1-3, a multi-way directional valve 11 includes an oil inlet coupling 1, a reversing coupling 2 and a tail coupling 3 which are fixedly connected in sequence, the oil inlet coupling 1 includes a first neutral unloading valve 4, the reversing coupling 2 has at least one reversing valve which is communicated in parallel, the tail coupling 3 includes a second neutral unloading valve 5, the first neutral unloading valve 4 and the second neutral unloading valve 5 are both communicated with the reversing valves in parallel, and the first neutral unloading valve 4 and the second neutral unloading valve 5 can unload at the same time. In the multi-way directional valve 11, when the directional valve in the directional coupler 2 is standby and does not pass through oil, the oil can be unloaded through the first middle unloading valve 44 and the second middle unloading valve 5 in the oil inlet coupler 1 and the tail coupler 3, the second middle unloading valve 5 in the tail coupler 3 shares the oil unloading amount, the unloading burden of the first middle unloading valve 44 is reduced, the heat generation when the oil passes through the first middle unloading valve 44 is reduced, and the heat dissipation cost is reduced.
In this embodiment, the reversing link 2 may be provided with a plurality of reversing valves, and in this embodiment, it is preferable that the reversing link 2 has two parallel reversing valves, and each reversing valve is connected in parallel with the first middle unloading valve 4.
In this embodiment, the unloading pressures of the first neutral unloading valve 4 and the second neutral unloading valve 5 are preferably the same. The unloading device can realize the function of sharing unloading burden and can realize unloading with the same unloading pressure.
In this embodiment, the unloading pressure of the first neutral unloading valve 4 and the second neutral unloading valve 5 is preferably 2.5 MPa.
In this embodiment, the tail coupler 3 further includes a valve body 6, the second middle position unloading valve 5 includes an oil duct 13 and a valve core 12 which are arranged in the valve body 6, the valve core 12 includes a slide valve 7 with one end slidably connected with the valve body 6, the other end of the slide valve is arranged in the oil duct, and oil pressure in the oil duct can push the slide valve 7 to move so as to control the opening degree of the oil duct. One end of the slide valve 7 is arranged in the oil duct in a sliding mode, the slide valve 7 in the oil duct is pushed to move through the pressure of oil, the larger the pressure of the oil is, the larger the moving distance of the valve core is, and the larger the flow rate of the oil in the oil duct is.
In this embodiment, the valve core further includes a spring seat 9 and a spring 8, each end of the spring 8 is respectively and fixedly connected with the spring seat 9 and the sliding valve 7 in an abutting mode, and oil pressure in the oil passage can push the spring 8 to compress so as to control the opening degree of the oil passage. The oil pressure in the oil passage overcomes the elastic force of the spring 8, and the spring 8 is compressed to push the slide valve 7 to move so as to control the opening degree of the oil passage. One end of the valve core is arranged in the oil duct in a sliding mode, a sliding valve in the oil duct is pushed to move through the pressure of oil, the larger the pressure of the oil is, the larger the moving distance of the sliding valve is, and the larger the oil flow in the oil duct is.
In this embodiment, the valve core further includes a positioning screw 10, the positioning screw 10 is screwed with the valve body 6, and when the positioning screw 10 contacts with the slide valve 7, the slide valve 7 completely blocks the oil passage. And the positioning screw can limit the slide valve 7 to move towards one end far away from the spring seat 9, and the covering and opening distance of the slide valve 7 is controlled to prevent the slide valve 7 from completely entering the oil channel.
In this embodiment, the oil duct includes an oil outlet duct and an oil inlet duct, one end of which is communicated with the oil outlet duct, and the valve core is disposed in the oil inlet duct, and oil pressure in the oil inlet duct can push the slide valve 7 to move so as to control a communication state between the oil inlet duct and the oil outlet duct. The pressure of oil in the oil inlet duct pushes the slide valve 7 to move, so that the oil outlet duct is communicated with the oil inlet duct, and the oil in the oil outlet duct can enter the oil inlet duct to complete pressure relief.
In this embodiment, the spring 8 is preferably a coil spring. The spring 8 only needs to push the sliding valve 7 to move in the direction of blocking the oil passage, and in this embodiment, after the sliding valve 7 closes the oil passage, the spring 8 preferably has a compression amount to ensure the sealing performance of the sliding valve 7.
In this embodiment, the spring seat 9 is preferably fixed to the valve body 6 by screwing.
The principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.
Claims (10)
1. A kind of multiple directional control valve, characterized by: the oil inlet joint comprises a first middle position unloading valve, the reversing joint comprises at least one reversing valve which is communicated in parallel, the tail joint comprises a second middle position unloading valve, the first middle position unloading valve and the second middle position unloading valve are communicated in parallel with the reversing valves, and the first middle position unloading valve and the second middle position unloading valve can unload simultaneously.
2. The multi-way reversing valve according to claim 1, wherein: the reversing union is provided with two parallel reversing valves.
3. The multi-way reversing valve according to claim 1, wherein: the unloading pressure of the first middle position unloading valve is the same as that of the second middle position unloading valve.
4. The multi-way reversing valve according to claim 3, wherein: the unloading pressure of the first middle position unloading valve and the second middle position unloading valve is 2.5 MPa.
5. The multi-way reversing valve according to claim 1, wherein: the tail coupler also comprises a valve body, the second middle position unloading valve comprises an oil duct and a valve core which are arranged in the valve body, the valve core comprises a slide valve, one end of the slide valve is connected with the valve body in a sliding mode, the other end of the slide valve is arranged in the oil duct, and oil pressure in the oil duct can push the slide valve to move so as to control the opening degree of the oil duct.
6. The multi-way reversing valve according to claim 5, wherein: the valve core further comprises a spring seat and a spring, each end of the spring is respectively abutted against the spring seat and the sliding valve, and the oil pressure in the oil duct can push the spring to compress so as to control the opening degree of the oil duct.
7. The multi-way reversing valve according to claim 6, wherein: the valve core further comprises a positioning screw, the positioning screw is in threaded connection with the valve body, and when the positioning screw is in contact with the sliding valve, the sliding valve completely blocks the oil duct.
8. The multi-way reversing valve according to claim 7, wherein: the oil duct comprises an oil outlet duct and an oil inlet duct, one end of the oil inlet duct is communicated with the oil outlet duct, the valve core is arranged in the oil inlet duct, and oil pressure in the oil inlet duct can push the sliding valve to move so as to control the communication state of the oil inlet duct and the oil outlet duct.
9. The multi-way reversing valve according to claim 6, wherein: the spring is a coil spring.
10. The multi-way reversing valve according to claim 6, wherein: the spring seat is fixedly connected with the valve body through threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122499630.6U CN216447211U (en) | 2021-10-18 | 2021-10-18 | Multi-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122499630.6U CN216447211U (en) | 2021-10-18 | 2021-10-18 | Multi-way reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216447211U true CN216447211U (en) | 2022-05-06 |
Family
ID=81350349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122499630.6U Active CN216447211U (en) | 2021-10-18 | 2021-10-18 | Multi-way reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216447211U (en) |
-
2021
- 2021-10-18 CN CN202122499630.6U patent/CN216447211U/en active Active
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