Hydraulic brake valve with angle sensor

Abstract

The utility model belongs to the technical field of hydraulic brake valves, and particularly relates to a hydraulic brake valve with an angle sensor, which comprises a mounting frame, a valve body is fixedly mounted on one side of the mounting frame, a slide valve cavity is arranged in the valve body, an output port communicated with the slide valve cavity is arranged above the valve body, and the angle sensor is arranged in the slide valve cavity. An input port communicated with the sliding valve cavity is formed in the side face, an oil return port communicated with the sliding valve cavity is formed below the sliding valve cavity, a valve element is slidably inserted in the sliding valve cavity, and the input port is formed between the output port and the oil return port; the other face of the mounting frame is movably connected with an operation panel, and a side frame is arranged on one side of the mounting frame. According to the novel automobile lamp, the stable adjusting control effect is achieved, the structure is compact, the braking effect is sensitive, a user can conduct fine adjustment according to needs through the operation panel, meanwhile, the angle sensor is arranged, the application scene that the new energy engineering automobile lamp needs signal feedback is met, and the user can know the adjusting control condition in real time.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic brake valves, and in particular relates to a hydraulic brake valve with an angle sensor. Background Art

[0002] A hydraulic brake valve is a control valve commonly used in hydraulic brake systems. Its main function is to regulate the hydraulic pressure transmitted to the brake cylinder to control the magnitude of the braking force. The hydraulic brake valve controls the hydraulic pressure through the movement of the valve core, thereby achieving the application and release of the brake. By reasonably adjusting the position and shape of the valve core, different brake sizes and brake sensitivities can be achieved.

[0003] In the prior art, when controlling the hydraulic brake valve, it is difficult for workers to know the specific flow adjustment status of the hydraulic brake valve and the pressing angle of the operating panel. Users' control of the hydraulic brake valve depends on their familiarity, or they can only judge the braking effect by the braking results. Utility Model Content

[0004] The utility model is to solve the technical problems raised in the background technology and provides a hydraulic brake valve with an angle sensor.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A hydraulic brake valve with an angle sensor includes a mounting frame, a valve body fixedly mounted on one side of the mounting frame, a spool cavity provided within the valve body, an output port communicating with the spool cavity provided on the top of the valve body, an input port communicating with the spool cavity provided on the side of the valve body, and an oil return port communicating with the spool cavity provided on the bottom of the valve body, a valve core slidably inserted within the spool cavity, and the input port provided between the output port and the oil return port;

[0007] An operating panel is movably connected to the other side of the mounting frame. A side frame is provided on one side of the mounting frame. An angle sensor is installed in the side frame. The input end of the angle sensor is connected to the operating panel. A piston is inserted into the end of the sliding valve cavity facing the mounting frame. One side of the operating panel is rotatably connected to the end of the piston.

[0008] A pressure block is slidably installed in the piston, a spring seat is slidably inserted in one end of the valve core, and the other end is against the pressure block, the piston is provided with a second spring, a return spring, and a first spring, the second spring, the return spring, and the first spring are all arranged at the end of the pressure block away from the valve core, and are sleeved together, the return spring is directly connected to the pressure block, the first spring is sleeved on the surface of the spring seat, and the first spring is against the end face of the valve core.

[0009] Preferably, a control chamber for inserting a piston is formed in the sliding valve chamber, the return spring is sleeved on the second spring, the first spring is sleeved on the return spring, and a protrusion is provided on the end of the pressure block away from the valve core. The second spring, the return spring and one end of the first spring are against the inner wall of the end of the piston away from the valve core, the other end of the second spring is sleeved on the protrusion, and the other end of the return spring is connected to the pressure block. The first spring is sleeved on the pressure block, and its two ends are respectively against the inner wall of the piston and the inner wall of the control chamber.

[0010] Preferably, a steel ball is provided at the end of the pressure block away from the protrusion, and a circular groove for the steel ball to be clamped is provided at the corresponding position of the valve core. The outer surface of the valve core is provided with a section of annular groove, and the length of the annular groove ranges between the farthest end spacing and the nearest end spacing of the output port and the input port, and the horizontal spacing between the output port and the input port is the same as the horizontal spacing between the input port and the oil return port.

[0011] Preferably, the end of the valve body away from the mounting frame is fixedly connected to a sealing block by screws, an inner groove is provided in the sealing block, the inner groove is connected and fits with the sliding valve cavity, and the spring seat and one end of the first spring are both against the inner wall of the inner groove.

[0012] Preferably, a mounting plate is fixedly mounted on one side of the side frame by screws, and the angle sensor is encapsulated in the side frame by the mounting plate.

[0013] Preferably, the operating panel is provided with a short portion and a long portion, the surface of the long portion is provided with wavy patterns, the input end of the angle sensor is fixedly connected to one side of the short portion, and the other side of the short portion is rotatably connected to the piston.

[0014] Preferably, a rubber sleeve is fixedly sleeved on the end surface of the piston exposed outside the sliding valve cavity, and the rubber sleeve is fixedly connected to the surface of the mounting frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application sets a three-layer elastic structure in the piston, the second spring and the return spring are used to control the pressure block, and after the return spring is energized, the position of the piston is controlled by controlling the current, and the first spring is set at the other end of the valve core to resist and control it, thereby achieving a stable adjustment and control effect, a compact structure, and a sensitive braking effect. Through the operating panel, the user can make fine adjustments according to needs. At the same time, it is equipped with an angle sensor to meet the application scenarios where new energy engineering vehicle lights require signal feedback, and the user can know the adjustment and control status in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of one side of a hydraulic brake valve with an angle sensor proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of a hydraulic brake valve with an angle sensor proposed by the present utility model;

[0018] Figure 3 This is a structural schematic diagram of the other side of a hydraulic brake valve with an angle sensor proposed in the present utility model;

[0019] Figure 4 This is a structural schematic diagram of a side frame of a hydraulic brake valve with an angle sensor proposed by the present invention;

[0020] Figure 5 This is a cross-sectional schematic diagram of a hydraulic brake valve with an angle sensor proposed by the present utility model;

[0021] Figure 6 The utility model provides a schematic diagram of a quarter cross-section of a slide valve cavity of a hydraulic brake valve with an angle sensor.

[0022] In the figure: 1 mounting frame, 2 operating panel, 3 side frame, 4 mounting plate, 5 angle sensor, 6 rubber sleeve, 7 sealing block, 8 output port, 9 input port, 10 valve body, 11 control chamber, 12 spring seat, 13 slide valve chamber, 14 third spring, 15 oil return port, 16 piston, 17 second spring, 18 return spring, 19 first spring, 20 pressure block, 21 valve core. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0025] Reference Figures 1-6 A hydraulic brake valve with an angle sensor includes a mounting frame 1. A valve body 10 is fixedly mounted on one side of the mounting frame 1. A spool valve cavity 13 is provided in the valve body 10. An output port 8 communicating with the spool valve cavity 13 is provided on the top of the valve body 10. An input port 9 communicating with the spool valve cavity 13 is provided on the side of the valve body 10. An oil return port 15 communicating with the spool valve cavity 13 is provided on the bottom of the valve body 10. A valve core 21 is slidably inserted in the spool valve cavity 13. The input port 9 is provided between the output port 8 and the oil return port 15.

[0026] An operating panel 2 is movably connected to the other side of the mounting frame 1. A side frame 3 is provided on one side of the mounting frame 1. An angle sensor 5 is installed in the side frame 3. The input end of the angle sensor 5 is connected to the operating panel 2. A piston 16 is inserted into the end of the slide valve chamber 13 facing the mounting frame 1. One side of the operating panel 2 is rotatably connected to the end of the piston 16.

[0027] A pressure block 20 is slidably installed in the piston 16, and a spring seat 12 is slidably inserted in one end of the valve core 21, and the other end is against the pressure block 20. The piston 16 is provided with a second spring 17, a return spring 18, and a first spring 19. The second spring 17, the return spring 18, and the first spring 19 are all arranged at the end of the pressure block 20 away from the valve core 21, and are connected to each other. The return spring 18 is directly connected to the pressure block 20. A third spring 14 is connected on the surface of the spring seat 12, and the third spring 14 is against the end face of the valve core 21.

[0028] A control chamber 11 for inserting a piston 16 is formed in the sliding valve chamber 13, the return spring 18 is sleeved on the second spring 17, the first spring 19 is sleeved on the return spring 18, and a protrusion is provided on the end of the pressure block 20 away from the valve core 21. The second spring 17, the return spring 18, and one end of the first spring 19 are against the inner wall of the end of the piston 16 away from the valve core 21, the other end of the second spring 17 is sleeved on the protrusion, the other end of the return spring 18 is connected to the pressure block 20, the first spring 19 is sleeved on the pressure block 20, and its two ends are respectively against the inner wall of the piston 16 and the inner wall of the control chamber 11.

[0029] A three-layer elastic structure is arranged in the piston 16, the second spring 17 is connected to the protrusion, and the return spring 18 is arranged between the second spring 17 and the first spring 19. The first spring 19 is sleeved on the surface of the pressure block 20, which makes the return spring 18 directly press against the end face of the pressure block 20. The expansion and contraction of the return spring 18 is controlled by current, and the position of the pressure block 20 can be changed. The three-layer elastic structure acts on the pressure block 20 together, so that the pressure block 20 can remain stable during the movement. The first spring 19 controls the stable movement of the piston 16 in the sliding valve cavity 13 and the tight fit inside. The return spring 18 applies a force to the pressure block 20 so that it is tightly pressed against one end of the valve core 21. The second spring 17 limits the movement trajectory of the pressure block 20 by being sleeved on the protrusion.

[0030] A steel ball is provided at the end of the pressure block 20 away from the protrusion, and a circular groove for the steel ball to be engaged is provided at the corresponding position of the valve core 21. The outer surface of the valve core 21 is provided with a section of annular groove, and the length range of the annular groove is between the farthest end spacing and the nearest end spacing of the output port 8 and the input port 9. The horizontal spacing between the output port 8 and the input port 9 is the same as the horizontal spacing between the input port 9 and the oil return port 15. The pressure block 20 is pressed against the valve core 21 through the steel ball to ensure the stability of the contact between the two. The arc-shaped groove opened on the valve core 21 is used to connect the output port 8 and the input port 9, or the input port 9 and the oil return port 15, and the length range is between the spacing between the two. When the valve core 21 is moved, the communication range of the annular groove and the two can be realized, thereby achieving the effect of flow regulation.

[0031] The end of the valve body 10 away from the mounting frame 1 is fixedly connected to the sealing block 7 by screws. An inner groove is provided in the sealing block 7, which is communicated and fits with the sliding valve cavity 13. One end of the spring seat 12 and the third spring 14 are both against the inner wall of the inner groove. A sealing block 7 that can be removed by screws is provided at one end of the valve body 10. The detachable structure is convenient for later maintenance and use.

[0032] A mounting plate 4 is fixed to one side of the side frame 3 by screws, and the angle sensor 5 is encapsulated in the side frame 3 through the mounting plate 4. The angle sensor 5 is a prior art and can detect angles. Its working principle is not explained in detail. The mounting plate 4 serves to encapsulate the angle sensor 5 and can clamp the angle sensor 5 to prevent it from being exposed to the external environment.

[0033] The operating panel 2 is provided with a short part and a long part, and a wavy pattern is provided on the surface of the long part. The input end of the angle sensor 5 is fixedly connected to one side of the short part, and the other side of the short part is rotatably connected to the piston 16. The staff operates the long part of the operating panel 2 to realize its rotation, and then pulls the piston 16 back and forth. When the operating panel 2 rotates, the angle sensor 5 will detect the angle of rotation.

[0034] A rubber sleeve 6 is fixedly sleeved on the end surface of the piston 16 exposed outside the sliding valve cavity 13. The rubber sleeve 6 is fixedly connected to the surface of the mounting frame 1 and is used to seal the connection between the piston 16 and the valve body 10.

[0035] When in use, the staff presses or steps on the long part of the operating plate 2, which will drive the short part of the operating plate 2 to rotate relative to the connection with the mounting frame 1, and then the short part of the operating plate 2 drives the piston 16 to move inward or outward. The piston 16 will affect the position of the internal pressure block 20 during the movement. Due to the change in the position of the piston 16 in the control chamber 11, the expansion and contraction of the second spring 17, the return spring 18, and the first spring 19 will be changed accordingly. The change in the position of the pressure block 20 will affect the position of the valve core 21 it presses, thereby realizing the position of the valve core 21 in the sliding valve chamber 13. By changing the annular groove on the surface of the valve core 21, the output port 8 and the input port 9 are connected, or the return oil port 15 and the input port 9 are connected. The position of the annular groove at both ends will affect the flow of the liquid, thereby achieving the regulation effect. During the rotation of the operating plate 2, its rotation will be transmitted to the angle sensor 5, and then the angle sensor 5 can calculate the rotation angle of the operating plate 2, and accordingly can infer the internal movement position of the valve core 21 and calculate the internal flow situation. The detection function of the angle sensor 5 will not affect the rotation effect of the operating plate 2.

[0036] A three-layer elastic structure is set in the piston 16. The second spring 17 and the return spring 18 are used to control the pressure block 20. After the return spring 18 is energized, the position of the piston 16 is controlled by controlling the current. A third spring 14 is set at the other end of the valve core 21 to resist and control it, thereby achieving a stable adjustment and control effect. The structure is compact and the braking effect is sensitive. The user can make fine adjustments according to their needs through the operation panel 2. At the same time, it is equipped with an angle sensor 5 to meet the application scenarios where new energy engineering vehicle lights require signal feedback, and the user can know the adjustment and control status in real time.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic brake valve with an angle sensor, comprising a mounting frame (1), characterized in that: A valve body (10) is fixedly mounted on one side of the mounting frame (1), a sliding valve cavity (13) is provided in the valve body (10), an output port (8) communicating with the sliding valve cavity (13) is provided on the top of the valve body (10), an input port (9) communicating with the sliding valve cavity (13) is provided on the side, and an oil return port (15) communicating with the sliding valve cavity (13) is provided on the bottom. A valve core (21) is slidably inserted in the sliding valve cavity (13), and the input port (9) is provided between the output port (8) and the oil return port (15); The other side of the installation frame (1) is movably connected to an operating panel (2), a side frame (3) is provided on one side of the installation frame (1), an angle sensor (5) is installed in the side frame (3), an input end of the angle sensor (5) is connected to the operating panel (2), a piston (16) is inserted into one end of the slide valve cavity (13) facing the installation frame (1), and one side of the operating panel (2) is rotatably connected to the end of the piston (16); A pressing block (20) is slidably installed in the piston (16), a spring seat (12) is slidably inserted in one end of the valve core (21), and the other end is against the pressing block (20), and the piston (16) is provided with a second spring (17), a return spring (18), and a first spring (19), and the second spring (17), the return spring (18), and the first spring (19) are all arranged at one end of the pressing block (20) away from the valve core (21), and are sleeved together, and the return spring (18) is directly connected to the pressing block (20), and a third spring (14) is sleeved on the surface of the spring seat (12), and the third spring (14) is against the end face of the valve core (21).

2. A hydraulic brake valve with an angle sensor according to claim 1, characterized in that: A control chamber (11) for inserting a piston (16) is formed in the sliding valve chamber (13), the return spring (18) is sleeved on the second spring (17), the first spring (19) is sleeved on the return spring (18), and a protrusion is provided on the end of the pressure block (20) away from the valve core (21). The second spring (17), the return spring (18), and one end of the first spring (19) are against the inner wall of the end of the piston (16) away from the valve core (21), the other end of the second spring (17) is sleeved on the protrusion, and the other end of the return spring (18) is connected to the pressure block (20). The first spring (19) is sleeved on the pressure block (20), and its two ends respectively abut against the inner wall of the piston (16) and the inner wall of the control chamber (11).

3. A hydraulic brake valve with an angle sensor according to claim 2, characterized in that: A steel ball is provided at one end of the pressing block (20) away from the protrusion, and a circular groove for engaging the steel ball is provided at a corresponding position of the valve core (21). An annular groove is provided on the outer surface of the valve core (21), and the length of the annular groove ranges between the farthest end spacing and the nearest end spacing of the output port (8) and the input port (9). The horizontal spacing between the output port (8) and the input port (9) is the same as the horizontal spacing between the input port (9) and the oil return port (15).

4. The hydraulic brake valve with an angle sensor according to claim 1, characterized in that: One end of the valve body (10) away from the mounting frame (1) is fixedly connected to a sealing block (7) by screws. An inner groove is provided in the sealing block (7). The inner groove is connected and fits with the sliding valve cavity (13). One end of the spring seat (12) and the third spring (14) are both against the inner wall of the inner groove.

5. The hydraulic brake valve with an angle sensor according to claim 1, characterized in that: A mounting plate (4) is fixedly mounted on one side of the side frame (3) by means of screws, and the angle sensor (5) is encapsulated in the side frame (3) by means of the mounting plate (4).

6. The hydraulic brake valve with an angle sensor according to claim 1, characterized in that: The operating panel (2) is provided with a short portion and a long portion, a surface of the long portion is provided with a wave pattern, an input end of the angle sensor (5) is fixedly connected to one side of the short portion, and the other side of the short portion is rotationally connected to the piston (16).

7. The hydraulic brake valve with an angle sensor according to claim 1, characterized in that: A rubber sleeve (6) is fixedly sleeved on the surface of one end of the piston (16) exposed outside the slide valve cavity (13), and the rubber sleeve (6) is fixedly connected to the surface of the mounting frame (1).

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