A multi-direction electro-hydraulic proportional valve

Abstract

This utility model relates to the field of electro-hydraulic proportional valve technology, specifically to a multi-directional electro-hydraulic proportional valve, including an electro-hydraulic proportional valve body. Two symmetrical fixing blocks are fixedly connected to the electro-hydraulic proportional valve body. A movable groove is formed on the side of each fixing block near the electro-hydraulic proportional valve body. A slider is slidably connected inside the movable groove. A protective frame is fixedly connected to the top of the slider. The protective frame has a U-shaped cross-section and is slidably connected to the surface of the electro-hydraulic proportional valve body. This allows a puller to slide into and out of the fixed groove, enabling the puller to fix and release the slider. This makes fixing the slider and protective frame easier and allows the protective frame and groove to more stably protect the plug of the electro-hydraulic proportional valve body. The protective plate and protective frame protect the plug of the electro-hydraulic proportional valve body, providing better protection when the valve body is not in use.

Description

Technical Field

[0001] This utility model relates to the field of electro-hydraulic proportional valve technology, and in particular to a multi-directional electro-hydraulic proportional valve. Background Technology

[0002] Proportional valves are commonly used for remote control of oil pressure, flow rate, or direction. They typically involve a proportional electromagnet driving an armature to move, which in turn moves the valve core, controlling the valve opening size. When a proportional valve is operating, the electromagnet overcomes the spring force to move the valve core. The final stopping position is determined by the spring force; the greater the spring force, the more springs are compressed, resulting in a larger or smaller valve opening. Since the forces acting on the valve core are not only spring force and magnetic force, but also friction and gravity, they are also affected by these factors.

[0003] Literature review revealed that some existing multi-directional electro-hydraulic proportional valves consist of two parts: a DC proportional electromagnet and a hydraulic valve. However, since the plug of the electro-hydraulic proportional valve is directly exposed to the external environment, external objects can easily collide with the plug of the electro-hydraulic proportional valve body when it is not in use, thereby damaging the electro-hydraulic proportional valve body and reducing its service life. Summary of the Invention

[0004] The purpose of this utility model is to provide a multi-directional electro-hydraulic proportional valve, which solves the problem that the plug of the electro-hydraulic proportional valve is directly exposed to the external environment, so that when the electro-hydraulic proportional valve is not in use, external objects are easy to collide with the plug of the electro-hydraulic proportional valve body, thereby causing damage to the electro-hydraulic proportional valve body.

[0005] To achieve the above objectives, this utility model provides a multi-directional electro-hydraulic proportional valve, including an electro-hydraulic proportional valve body. Two symmetrical fixing blocks are fixedly connected to the electro-hydraulic proportional valve body. A moving groove is formed on the side of the fixing block near the electro-hydraulic proportional valve body. A slider is slidably connected inside the moving groove. A protective frame is fixedly connected to the top of the slider. The protective frame has a U-shaped cross-section. The inside of the protective frame is slidably connected to the surface of the electro-hydraulic proportional valve body. A groove is formed on one side of the protective frame. A protective plate is rotatably connected inside the groove. A power groove is formed inside the fixing block. The power groove has a T-shaped cross-section. A transmission positioning device is set inside the power groove.

[0006] The protective frame has a rotating groove inside, and a rotating shaft is rotatably connected inside the rotating groove. The side of the rotating shaft closest to the protective plate is fixedly connected to the surface of the protective plate, and the protective plate is rotatably connected to the inside of the rotating groove through the rotating shaft.

[0007] A torsion spring is fixedly connected inside the rotating groove. The torsion spring is movably sleeved on the rotating shaft, and the end of the torsion spring near the protective plate is fixedly connected to the surface of the protective plate.

[0008] The transmission positioning device includes a pull frame, the surface of which is slidably connected to the inside of the power groove. The pull frame has a cross-section of U-shape, and a fixing groove is provided inside the slider. The side of the pull frame near the fixing groove is inserted into the inside of the fixing groove.

[0009] The power slot has a sliding plate inside, and the side of the sliding plate near the pull frame is fixedly connected to the surface of the pull frame.

[0010] A spring is fixedly connected to one side of the movable plate, and the end of the spring away from the movable plate is fixedly connected to the inner wall of the power groove.

[0011] A rotating plate is rotatably connected to one side of the fixed block.

[0012] This utility model discloses a multi-directional electro-hydraulic proportional valve. A pull bracket can slide into and out of a fixed groove, allowing for the fixing and release of the slider. This makes it easier to fix the slider and protective frame, and the protective frame and groove provide more stable protection for the valve body's plug. The protective plate and frame further protect the valve body's plug when not in use, reducing direct exposure and minimizing the risk of collisions. This extends the valve's lifespan and allows for more stable storage. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the structure of a multi-directional electro-hydraulic proportional valve according to this utility model; Figure 2 This is a schematic diagram of the power trough structure of this utility model; Figure 3 This is a schematic diagram of the structure of the protective frame of this utility model; Figure 4 This is a structural schematic diagram of the protective plate of this utility model.

[0015] In the diagram: 1. Electro-hydraulic proportional valve body; 2. Fixed block; 3. Moving groove; 4. Protective frame; 5. Groove; 6. Protective plate; 7. Pull bracket; 8. Rotating plate; 9. Power groove; 10. Moving plate; 11. Spring; 12. Slider; 13. Fixed groove; 14. Rotating groove; 15. Rotating shaft; 16. Torsion spring. Detailed Implementation

[0016] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0017] The first embodiment of this application is as follows: Please see Figures 1-4 A multi-directional electro-hydraulic proportional valve includes an electro-hydraulic proportional valve body 1. The electro-hydraulic proportional valve body 1 is an existing structure and will not be described in detail here. Two symmetrical fixing blocks 2 are fixedly connected to the electro-hydraulic proportional valve body 1. A moving groove 3 is formed on the side of the fixing block 2 closest to the electro-hydraulic proportional valve body 1. A slider 12 is slidably connected inside the moving groove 3. A protective frame 4 is fixedly connected to the top of the slider 12. The protective frame 4 has a U-shaped cross-section and is slidably connected to the surface of the electro-hydraulic proportional valve body 1. A groove 5 is formed on one side of the protective frame 4. A protective plate 6 is rotatably connected inside the groove 5. The protective plate 6 and the protective... The protective frame 4 can protect the plug of the electro-hydraulic proportional valve body 1, and provide better protection for the plug of the electro-hydraulic proportional valve body 1 when it is not in use. At the same time, it reduces the direct exposure of the plug of the electro-hydraulic proportional valve body 1 to the external environment, and reduces the possibility of external objects colliding with the plug of the electro-hydraulic proportional valve body 1. This extends the service life of the electro-hydraulic proportional valve body 1 and allows for more stable storage. The fixing block 2 has a power groove 9 inside, which has a T-shaped cross-section and a transmission positioning device inside.

[0018] The protective frame 4 has a rotating groove 14 inside, and a rotating shaft 15 is rotatably connected inside the rotating groove 14. The rotating shaft 15 is fixedly connected to the surface of the protective plate 6 on the side near the protective plate 6. The protective plate 6 is rotatably connected to the inside of the rotating groove 14 through the rotating shaft 15. The protective plate 6 can rotate inside the groove 5 through the rotating shaft 15, making it easier to open and close the protective plate 6.

[0019] A torsion spring 16 is fixedly connected inside the rotating groove 14. The torsion spring 16 is movably sleeved on the rotating shaft 15. The end of the torsion spring 16 near the protective plate 6 is fixedly connected to the surface of the protective plate 6. The rotation of the protective plate 6 can compress and reset the torsion spring 16. At the same time, when the protective plate 6 is in a vertical state, the torsion spring 16 is in a natural state.

[0020] The second embodiment of this application is as follows: Based on the first embodiment, the transmission positioning device includes a pull bracket 7, the surface of which is slidably connected to the inside of the power groove 9. The cross-section of the pull bracket 7 is U-shaped. A fixing groove 13 is provided inside the slider 12. The side of the pull bracket 7 near the fixing groove 13 is inserted into the inside of the fixing groove 13. The pull bracket 7 can slide into and out of the inside of the fixing groove 13, and realize the fixing and release of the slider 12 by the pull bracket 7. This makes it easier to fix the position of the slider 12 and the protective frame 4, and enables the protective frame 4 and the groove 5 to more stably protect the plug of the electro-hydraulic proportional valve body 1, thereby improving the safety of the device to a certain extent.

[0021] A movable plate 10 is slidably connected inside the power groove 9. The side of the movable plate 10 closest to the pull bracket 7 is fixedly connected to the surface of the pull bracket 7. A spring 11 is fixedly connected to one side of the movable plate 10. The end of the spring 11 away from the movable plate 10 is fixedly connected to the inner wall of the power groove 9. The movement of the movable plate 10 can compress and reset the spring 11. The force exerted by the spring 11 on the movable plate 10 can make the pull bracket 7 more stably positioned and fixed inside the fixed groove 13.

[0022] A rotating plate 8 is rotatably connected to one side of the fixed block 2. When the pull bracket 7 slides out of the fixed groove 13, the rotating plate 8 rotates downward by gravity, so that the rotating plate 8 slides into the pull bracket 7. This allows the rotating plate 8 to block the pull bracket 7 and position it, so that after the pull bracket 7 is released from the fixation of the slider 12, the position of the pull bracket 7 can be positioned more smoothly, and the protective frame 4 can move more smoothly.

[0023] The usage process of the multi-directional electro-hydraulic proportional valve provided by this utility model is as follows: The plug of the electro-hydraulic proportional valve body 1 can be protected by the protective plate 6 and the protective frame 4, and the plug of the electro-hydraulic proportional valve body 1 can be better protected when the electro-hydraulic proportional valve body 1 is not in use. At the same time, it reduces the direct exposure of the plug of the electro-hydraulic proportional valve body 1 to the external environment to a certain extent, so as to reduce the occurrence of external objects colliding with the plug of the electro-hydraulic proportional valve body 1, thereby extending the service life of the electro-hydraulic proportional valve body 1 and enabling the electro-hydraulic proportional valve body 1 to be stored more stably. The pull bracket 7 can slide into and out of the fixed groove 13, and can fix and release the slider 12, making it easier to fix the position of the slider 12 and the protective frame 4. It also makes the protective frame 4 and the groove 5 more stable in protecting the plug of the electro-hydraulic proportional valve body 1. When the pull bracket 7 slides out of the fixed groove 13, the rotating plate 8 rotates downward by gravity. After the rotating plate 8 slides into the pull bracket 7, it can block the pull bracket 7 and realize the position positioning of the pull bracket 7. After the pull bracket 7 releases the fixation of the slider 12, the position of the pull bracket 7 can be positioned more smoothly, and the protective frame 4 can move more smoothly.

[0024] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A multi-directional electro-hydraulic proportional valve, comprising an electro-hydraulic proportional valve body (1), characterized in that: Two symmetrical fixed blocks (2) are fixedly connected to the electro-hydraulic proportional valve body (1). A moving groove (3) is provided on the side of the fixed block (2) close to the electro-hydraulic proportional valve body (1). A slider (12) is slidably connected inside the moving groove (3). A protective frame (4) is fixedly connected to the top of the slider (12). The cross section of the protective frame (4) is U-shaped. The inside of the protective frame (4) is slidably connected to the surface of the electro-hydraulic proportional valve body (1). A groove (5) is provided on one side of the protective frame (4). A protective plate (6) is rotatably connected inside the groove (5). A power groove (9) is provided inside the fixed block (2). The cross section of the power groove (9) is T-shaped. A transmission positioning device is provided inside the power groove (9).

2. The multi-directional electro-hydraulic proportional valve as described in claim 1, characterized in that: The protective frame (4) has a rotating groove (14) inside, and a rotating shaft (15) is rotatably connected inside the rotating groove (14). The rotating shaft (15) is fixedly connected to the surface of the protective plate (6) on the side near the protective plate (6). The protective plate (6) is rotatably connected to the inside of the rotating groove (14) through the rotating shaft (15).

3. The multi-directional electro-hydraulic proportional valve as described in claim 2, characterized in that: A torsion spring (16) is fixedly connected inside the rotating groove (14). The torsion spring (16) is movably sleeved on the rotating shaft (15). One end of the torsion spring (16) near the protective plate (6) is fixedly connected to the surface of the protective plate (6).

4. The multi-directional electro-hydraulic proportional valve as described in claim 1, characterized in that: The transmission positioning device includes a pull frame (7), the surface of the pull frame (7) is slidably connected to the inside of the power groove (9), the cross section of the pull frame (7) is U-shaped, the slider (12) has a fixed groove (13) inside, and the side of the pull frame (7) close to the fixed groove (13) is inserted into the inside of the fixed groove (13).

5. The multi-directional electro-hydraulic proportional valve as described in claim 4, characterized in that: The power slot (9) is internally slidably connected to a movable plate (10), and the side of the movable plate (10) near the pull frame (7) is fixedly connected to the surface of the pull frame (7).

6. The multi-directional electro-hydraulic proportional valve as described in claim 5, characterized in that: A spring (11) is fixedly connected to one side of the movable plate (10), and the end of the spring (11) away from the movable plate (10) is fixedly connected to the inner wall of the power groove (9).

7. The multi-directional electro-hydraulic proportional valve as described in claim 1, characterized in that: A rotating plate (8) is rotatably connected to one side of the fixed block (2).

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