Electro-hydraulic control valve with emergency braking structure

Abstract

The utility model belongs to the technical field of electro-hydraulic control valves, and particularly relates to an electro-hydraulic control valve with an emergency braking structure, which comprises an electro-hydraulic control valve body, a controller, a liquid inlet pipe and a liquid outlet pipe, and the controller is mounted at the top end of the electro-hydraulic control valve body. When the mechanical brake device is used, the pull ring is pulled, so that the limiting ring can be separated from the rotating rod, then the rotating hand wheel is rotated, the brake plate is driven to rotate, the mechanical brake device can rapidly conduct mechanical brake, then the double-shaft motor is started, and the rotating rod connected with the output end of the double-shaft motor drives the mounting rod to rotate through the belt pulley set. And therefore, the crushing cutter is driven to rotate to crush impurities in the liquid inlet pipe, and the impurity removal effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of electro-hydraulic control valve technology, specifically to an electro-hydraulic control valve equipped with an emergency braking structure. Background Technology

[0002] Electro-hydraulic control valves, such as electro-hydraulic proportional control valves, can precisely control the flow and pressure of hydraulic media, thereby achieving proportional control of the output force, output torque, or movement speed of actuators. By precisely controlling the flow and pressure of hydraulic media, electro-hydraulic control valves can improve the operational stability and working efficiency of hydraulic systems, thus bringing good economic and social benefits.

[0003] However, in most electro-hydraulic control valves, the emergency braking structure is prone to damage after prolonged use, which can lead to braking failure and the inability to quickly cut off the fluid. As a result, the electro-hydraulic control valve is not convenient for emergency braking after the emergency braking structure is damaged, posing a safety hazard. Summary of the Invention

[0004] The purpose of this invention is to provide an electro-hydraulic control valve with an emergency braking structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electro-hydraulic control valve with an emergency braking structure, comprising an electro-hydraulic control valve body, a controller, an inlet pipe, and an outlet pipe. The controller is mounted on the top of the electro-hydraulic control valve body, an inlet pipe is provided on one side of the electro-hydraulic control valve body, and an outlet pipe is provided on the side of the electro-hydraulic control valve body away from the inlet pipe. A brake plate is rotatably connected inside the inlet pipe, a rotating rod is connected to the top of the brake plate, and a rotating handwheel is connected to the end of the rotating rod away from the brake plate.

[0006] Preferably, a limiting ring is provided on one side of the rotating rod, a connecting rod is provided on the side of the limiting ring away from the rotating rod by welding, and a displacement seat is provided on the side of the connecting rod away from the limiting ring.

[0007] Preferably, a moving groove is provided inside the liquid inlet pipe on the side near the displacement seat, a limiting spring is provided inside the displacement seat and the liquid inlet pipe to connect them, and a pull ring is provided on the side of the displacement seat away from the connecting rod.

[0008] Preferably, a dual-axis motor is installed at the top of the liquid inlet pipe near the rotating handwheel, and the output ends of the dual-axis motor are connected to rotating rods via couplings.

[0009] Preferably, one end of each rotating rod is provided with a protective frame that is welded to the liquid inlet pipe, and the protective frame is provided with symmetrically distributed sealing rings at the end near the rotating rod.

[0010] Preferably, the inlet pipe has symmetrically distributed mounting rods on the side near the brake plate, and a pulley assembly connects the mounting rods to the rotating rod.

[0011] Preferably, a fixing seat is provided on one side of the mounting rod and welded to the inside of the liquid inlet pipe, and a crushing blade is provided on the side of the mounting rod surface near the pulley assembly.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. When using this utility model, pulling the pull ring moves the displacement seat, which in turn moves the connecting rod, which in turn moves the limiting ring and separates it from the rotating rod, causing the rotating rod to loosen. Then, the handwheel is turned, which drives the limiting ring to rotate, thereby driving the brake plate to rotate. This causes the brake plate to block the liquid inlet pipe, allowing this utility model to quickly perform mechanical braking, thus improving the emergency braking effect.

[0014] 2. When using this utility model, the dual-shaft motor is started, and the output end of the dual-shaft motor drives the rotating rod to rotate, which in turn drives the pulley group to rotate, and then drives the mounting rod to rotate. When the mounting rod rotates, it drives the crushing blade to rotate, which crushes the impurities inside the liquid inlet pipe, thereby improving the impurity removal effect. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is a side view sectional structural diagram of the liquid inlet pipe of this utility model;

[0017] Figure 3 This is a front view cross-sectional structural diagram of the liquid inlet pipe of this utility model;

[0018] Figure 4 This is a front view cross-sectional structural diagram of the protective frame of this utility model.

[0019] In the diagram: 1. Electro-hydraulic control valve body; 2. Controller; 3. Inlet pipe; 4. Outlet pipe; 5. Brake plate; 6. Rotating rod; 7. Rotating handwheel; 8. Restricting ring; 9. Connecting rod; 10. Displacement seat; 11. Moving groove; 12. Restricting spring; 13. Pull ring; 14. Dual-shaft motor; 15. Rotating rod; 16. Protective frame; 17. Sealing ring; 18. Mounting rod; 19. Pulley assembly; 20. Fixed seat; 21. Crushing blade. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3 This utility model provides a technical solution: an electro-hydraulic control valve with an emergency braking structure, including an electro-hydraulic control valve body 1, a controller 2, an inlet pipe 3, and an outlet pipe 4. The controller 2 is installed at the top of the electro-hydraulic control valve body 1. An inlet pipe 3 is provided on one side of the electro-hydraulic control valve body 1. An outlet pipe 4 is provided on the side of the electro-hydraulic control valve body 1 away from the inlet pipe 3. A brake plate 5 is rotatably connected inside the inlet pipe 3. A rotating rod 6 is connected to the top of the brake plate 5. A rotating handwheel 7 is connected to the end of the rotating rod 6 away from the brake plate 5. A limiting ring 8 is provided on one side of the rotating rod 6. A connecting rod 9 is welded to the side of the limiting ring 8 away from the rotating rod 6. A displacement seat 10 is provided on the side of the connecting rod 9 away from the limiting ring 8. A moving groove 11 is opened inside the inlet pipe 3 near the displacement seat 10. A limiting spring 12 is connected to the displacement seat 10 and the inside of the inlet pipe 3. A pull ring 13 is provided on the side of the displacement seat 10 away from the connecting rod 9.

[0022] For specific implementation, please refer to Figures 1-3 As can be seen, when this utility model is used, pulling the pull ring 13 causes the displacement seat 10 to move. When the displacement seat 10 moves, it can slide inside the moving groove 11. At the same time, when the displacement seat 10 moves, it can stretch the limiting spring 12 and drive the connecting rod 9 to move, which in turn drives the limiting ring 8 to move, causing the limiting ring 8 to separate from the rotating rod 6, thereby loosening the rotating rod 6. Then, the rotating handwheel 7 is rotated, which drives the limiting ring 8 to rotate, thereby driving the brake plate 5 to rotate, causing the brake plate 5 to block inside the liquid inlet pipe 3. This allows the utility model to quickly perform mechanical braking, thereby improving the emergency braking effect.

[0023] A dual-shaft motor 14 is installed at the top of the inlet pipe 3 near the rotating handwheel 7. The output ends of the dual-shaft motor 14 are connected to rotating rods 15 via couplings. One end of each rotating rod 15 is provided with a protective frame 16 welded to the inlet pipe 3. The end of the protective frame 16 near the rotating rod 15 is provided with symmetrically distributed sealing rings 17. The inside of the inlet pipe 3 is provided with symmetrically distributed mounting rods 18 near the brake plate 5. A pulley assembly 19 is connected between the mounting rods 18 and the rotating rods 15. One side of the mounting rod 18 is provided with a fixed seat 20 welded to the inside of the inlet pipe 3. The surface of the mounting rod 18 near the pulley assembly 19 is provided with crushing blades 21.

[0024] For specific implementation, please refer to Figure 1 and Figure 4 As can be seen, when this utility model is used, the dual-axis motor 14 is started, and the output end of the dual-axis motor 14 drives the rotating rod 15 to rotate, thereby driving the pulley group 19 to rotate, which in turn drives the mounting rod 18 to rotate. When the mounting rod 18 rotates, it drives the crushing blade 21 to rotate, crushing the impurities inside the liquid inlet pipe 3, thereby improving the impurity removal effect. At the same time, the sealing ring 17 set on one side of the protective frame 16 improves the protective sealing effect.

[0025] In summary, pulling the pull ring 13 moves the displacement seat 10, which in turn moves the connecting rod 9, which in turn moves the limiting ring 8 and separates it from the rotating rod 6, causing the rotating rod 6 to loosen. Subsequently, the rotating handwheel 7 rotates, which in turn rotates the limiting ring 8, thereby rotating the brake plate 5. This allows the brake plate 5 to block the liquid inlet pipe 3, enabling the present invention to quickly apply mechanical braking, thus improving the emergency braking effect. The contents not described in detail in this description are prior art known to those skilled in the art.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electro-hydraulic control valve with an emergency braking structure, comprising an electro-hydraulic control valve body (1), a controller (2), an inlet pipe (3), and an outlet pipe (4), characterized in that: A controller (2) is installed at the top of the electro-hydraulic control valve body (1). An inlet pipe (3) is provided on one side of the electro-hydraulic control valve body (1). An outlet pipe (4) is provided on the side of the electro-hydraulic control valve body (1) away from the inlet pipe (3). A brake plate (5) is rotatably connected inside the inlet pipe (3). A rotating rod (6) is connected to the top of the brake plate (5). A rotating handwheel (7) is connected to the end of the rotating rod (6) away from the brake plate (5).

2. The electro-hydraulic control valve with an emergency braking structure according to claim 1, characterized in that: A limiting ring (8) is provided on one side of the rotating rod (6), and a connecting rod (9) is provided on the side of the limiting ring (8) away from the rotating rod (6) and a displacement seat (10) is provided on the side of the connecting rod (9) away from the limiting ring (8).

3. An electro-hydraulic control valve with an emergency braking structure according to claim 1, characterized in that: The inlet pipe (3) has a moving groove (11) on the side near the displacement seat (10) inside. The displacement seat (10) and the inlet pipe (3) are connected by a limiting spring (12). The displacement seat (10) is provided with a pull ring (13) on the side away from the connecting rod (9).

4. An electro-hydraulic control valve with an emergency braking structure according to claim 3, characterized in that: A dual-axis motor (14) is installed on the top of the liquid inlet pipe (3) near the rotating handwheel (7), and the output ends of the dual-axis motor (14) are connected to rotating rods (15) through couplings.

5. An electro-hydraulic control valve with an emergency braking structure according to claim 4, characterized in that: One end of each rotating rod (15) is provided with a protective frame (16) that is welded to the liquid inlet pipe (3), and the protective frame (16) is provided with symmetrically distributed sealing rings (17) at the end near the rotating rod (15).

6. An electro-hydraulic control valve with an emergency braking structure according to claim 1, characterized in that: The inlet pipe (3) has symmetrically distributed mounting rods (18) on the side near the brake plate (5), and a pulley assembly (19) is connected between the mounting rods (18) and the rotating rod (15).

7. An electro-hydraulic control valve with an emergency braking structure according to claim 6, characterized in that: A fixing seat (20) is provided on one side of the mounting rod (18) and welded to the inside of the liquid inlet pipe (3). A crushing blade (21) is provided on the side of the mounting rod (18) near the pulley assembly (19).

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