Mistaken touch prevention device for switch valve of coal mine hydraulic station

Abstract

The utility model belongs to the technical field of hydraulic stations, and discloses a mistaken touch prevention device for a switch valve of a coal mine hydraulic station, which comprises a hydraulic station body, a controller is fixedly mounted on the front side of the top of the hydraulic station body, a valve handle is movably mounted on the top of the controller, and a cylinder is fixedly mounted on the right side of the top of the valve handle. Through the arrangement of the clamping block, the clamping hole, the movable circular plate and the push block, when the clamping block is located in the clamping hole, the valve handle can be fixed, so that the valve handle can be prevented from rotating due to mistaken touch, and when the valve handle needs to be rotated, the valve handle can be rotated by moving the fixing block upwards; and the fixed block drives the push block to ascend through the movable circular plate, so that the push block pushes the clamping block to be upwards separated from the interior of the clamping hole, the fixing effect on the valve handle is relieved, and an operator rotates the valve handle to control opening and closing of the valve.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic station technology, specifically a device to prevent accidental contact of valves in a coal mine hydraulic station. Background Technology

[0002] The coal mine hydraulic station is a core device used in coal mine production to provide a stable power source for hydraulic equipment. It converts mechanical energy into hydraulic energy through a hydraulic pump, and then precisely adjusts the pressure, flow and direction through a control valve group to drive the actuator to complete operations such as support, hoisting and transportation. It is a key system to ensure the safe and efficient operation of coal mining.

[0003] Hydraulic power stations are key equipment in coal mines, and their operational accuracy and stability directly affect the safety and efficiency of mine operations. However, in actual use, the valve control handles of traditional hydraulic power stations are directly exposed to the external environment and lack effective protective measures. Since the valve handles are not equipped with any physical isolation or locking devices, operators are very likely to accidentally touch the valve handles with their arms or tools when performing other tasks, such as equipment inspection, tool handling, or emergency fault handling. Such unintentional contact may cause the valve to open or close unexpectedly, triggering a series of chain reactions. Such misoperations not only interrupt normal production processes and increase maintenance costs, but may also pose a direct threat to the safety of operators and the mine. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this utility model is to address the above problems. This utility model provides an anti-accidental contact device for the switching valves of a coal mine hydraulic station, which has the advantage of preventing accidental contact.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for preventing accidental contact of a valve in a coal mine hydraulic station, comprising a hydraulic station body, a controller fixedly installed on the front side of the top of the hydraulic station body, a valve handle movably installed on the top of the controller, a cylinder fixedly installed on the right side of the top of the valve handle, a first spring fixedly installed on the top of the inner surface of the cylinder, a circular block fixedly connected to the bottom of the first spring, the outer surface of the circular block movably fitting with the inner surfaces of the cylinder and the valve handle respectively, a locking block fixedly connected to the bottom of the circular block, a fixed circular plate located below the valve handle fixedly fitted on the inner surface of the top of the controller, a locking hole provided inside the fixed circular plate, the inner surface of the locking hole movably fitting with the outer surface of the locking block, a movable circular plate located below the fixed circular plate movably fitted on the outer surface of the top of the controller, a push block fixedly connected to the top of the movable circular plate, the outer surface of the push block movably fitting with the inner surface of the locking hole, a second spring fixedly connected to the top of the movable circular plate, the top of the second spring fixedly connected to the bottom of the fixed circular plate, and a fixing block fixedly connected to the front end of the movable circular plate.

[0006] As a preferred embodiment of this invention, a limiting block is fixedly installed on the left side of the top of the valve handle, and a movable handle is movably sleeved on the outer surface of the limiting block.

[0007] As a preferred embodiment of this utility model, a fixed bracket is fixedly installed on the outer surface of the limiting block, the inner surface of the fixed bracket is movably connected to the outer surface of the movable handle, and a pull rod is movably sleeved inside the top of the fixed bracket.

[0008] As a preferred embodiment of this utility model, a connecting plate is fixedly connected to the bottom of the pull rod, and a plug rod is fixedly connected to the bottom end of the connecting plate.

[0009] As a preferred embodiment of this utility model, the bottom end of the insertion rod passes through the movable handle and extends into the interior of the limiting block, and is movably sleeved with the inner walls of the limiting block and the movable handle, respectively.

[0010] As a preferred embodiment of this utility model, a reset spring is fixedly connected to the top of the connecting plate, and the top end of the reset spring is fixedly connected to the top of the inner surface of the fixed bracket.

[0011] As a preferred embodiment of this utility model, a circular hole is provided on the left side of the top of the movable handle, and the inner surface of the movable handle is smooth.

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

[0013] 1. This utility model, by setting a locking block, a locking hole, a movable circular plate, and a push block, fixes the valve handle when the locking block is inside the locking hole, thus preventing the valve handle from being accidentally touched and rotated. When it is necessary to rotate the valve handle, the fixing block can be moved upward, so that the fixing block drives the push block to rise through the movable circular plate, thereby pushing the locking block upward and disengaging it from the locking hole, thus releasing the fixing effect on the valve handle, allowing the operator to rotate the valve handle to control the opening and closing of the valve.

[0014] 2. This utility model, by setting up a movable handle, a round hole, a pull rod, and an insertion rod, allows the operator to release the movable handle when not controlling the opening and closing of the valve by pulling the pull rod upwards. This causes the pull rod to move the insertion rod upwards via the connecting plate. Then, the movable handle can be moved to the right, and the pull rod can be released, allowing the insertion rod to be inserted into the limiting block through the round hole, thus re-fixing the movable handle. At this point, the overall outward extension length of the movable handle and valve handle will be reduced, thereby lowering the probability of the operator accidentally touching the valve handle and the movable handle. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the controller of this utility model;

[0017] Figure 3 This is a cross-sectional view of the controller of this utility model;

[0018] Figure 4 This is a cross-sectional view of the side of the present invention;

[0019] Figure 5 for Figure 3 A magnified schematic diagram of the local structure at point A;

[0020] Figure 6 for Figure 3 A magnified view of the structure at point B in the middle;

[0021] Figure 7 for Figure 4 A magnified schematic diagram of the structure at point C.

[0022] In the diagram: 1. Hydraulic station body; 2. Controller; 3. Valve handle; 4. Cylinder; 5. First spring; 6. Circular block; 7. Locking block; 8. Fixed circular plate; 9. Locking hole; 10. Movable circular plate; 11. Push block; 12. Second spring; 13. Fixed block; 14. Limiting block; 15. Movable handle; 16. Circular hole; 17. Fixed bracket; 18. Pull rod; 19. Connecting plate; 20. Insert rod; 21. Return spring. Detailed Implementation

[0023] 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.

[0024] like Figures 1 to 7As shown, this utility model provides an anti-accidental contact device for the valve of a coal mine hydraulic station, including a hydraulic station body 1. A controller 2 is fixedly installed on the front side of the top of the hydraulic station body 1. A valve handle 3 is movably installed on the top of the controller 2. A cylinder 4 is fixedly installed on the right side of the top of the valve handle 3. A first spring 5 is fixedly installed on the top of the inner surface of the cylinder 4. A circular block 6 is fixedly connected to the bottom of the first spring 5. The outer surface of the circular block 6 is movably sleeved with the inner surface of the cylinder 4 and the valve handle 3 respectively. A locking block 7 is fixedly connected to the bottom of the circular block 6. The inner surface of the top of the controller 2 is fixedly sleeved with... A fixed circular plate 8 is located below the valve handle 3. The fixed circular plate 8 has a locking hole 9 inside. The inner surface of the locking hole 9 is movably sleeved with the outer surface of the locking block 7. A movable circular plate 10 located below the fixed circular plate 8 is movably sleeved on the outer surface of the top of the controller 2. A push block 11 is fixedly connected to the top of the movable circular plate 10. The outer surface of the push block 11 is movably sleeved with the inner surface of the locking hole 9. A second spring 12 is fixedly connected to the top of the movable circular plate 10. The top of the second spring 12 is fixedly connected to the bottom of the fixed circular plate 8. A fixing block 13 is fixedly connected to the front end of the movable circular plate 10.

[0025] When the locking block 7 is inside the locking hole 9, it will fix the valve handle 3, preventing the valve handle 3 from rotating. This will prevent accidental activation of the valve handle 3 and avoid opening or closing the valve. When the operator needs to rotate the valve handle 3, the fixing block 13 can be lifted upwards, causing the fixing block 13 to drive the movable circular plate 10 to rise. This will cause the push block 11 to push the locking block 7 upwards, disengaging the locking block 7 from the locking hole 9 and releasing the fixing effect on the valve handle 3.

[0026] Among them, a limiting block 14 is fixedly installed on the left side of the top of the valve handle 3, and a movable handle 15 is movably sleeved on the outer surface of the limiting block 14.

[0027] By setting the movable handle 15, the operator can rotate the movable handle 15, thereby causing the valve handle 3 to rotate.

[0028] Among them, a fixed bracket 17 is fixedly installed on the outer surface of the limiting block 14, the inner surface of the fixed bracket 17 is movably connected to the outer surface of the movable handle 15, and a pull rod 18 is movably sleeved inside the top of the fixed bracket 17.

[0029] By setting up the fixed bracket 17, the fixed bracket 17 can support and install the tie rod 18.

[0030] The bottom of the pull rod 18 is fixedly connected to the connecting plate 19, and the bottom end of the connecting plate 19 is fixedly connected to the insert rod 20.

[0031] The operator can pull the lever 18 upwards, which will cause the insertion rod 20 to move upwards through the connecting plate 19.

[0032] The bottom end of the insertion rod 20 passes through the movable handle 15 and extends into the interior of the limiting block 14, and is movably connected to the inner walls of the limiting block 14 and the movable handle 15 respectively.

[0033] When the insertion rod 20 is inside the limiting block 14, it will fix the movable handle 15, preventing the movable handle 15 from sliding along the outer surface of the limiting block 14.

[0034] A return spring 21 is fixedly connected to the top of the connecting plate 19, and the top end of the return spring 21 is fixedly connected to the top of the inner surface of the fixed bracket 17.

[0035] By setting a reset spring 21, the reset spring 21 can move downwards to reset the connecting plate 19 under the action of elastic recovery after being compressed.

[0036] The movable handle 15 has a round hole 16 on the left side of its top, and the inner surface of the movable handle 15 is smooth.

[0037] When the insertion rod 20 passes through the round hole 16 and is inserted into the inside of the limit block 14, it will fix the movable handle 15, thereby shortening the overall length of the valve handle 3 and the movable handle 15, thus preventing the operator from accidentally touching it.

[0038] Working principle and usage process of this utility model:

[0039] When the locking block 7 is inside the locking hole 9, it will fix the valve handle 3, thus preventing the valve handle 3 from rotating if the operator accidentally touches it. When the operator needs to rotate the valve handle 3, the fixed block 13 can be moved upward, causing the fixed block 13 to drive the movable circular plate 10 to rise, thereby causing the push block 11 to push the locking block 7 to rise, so that the locking block 7 is disengaged from the locking hole 9, thereby releasing the fixing effect on the valve handle 3. At this time, the operator can rotate the movable handle 15 to rotate the valve handle 3, thereby controlling the opening and closing of the valve.

[0040] After the operator has opened or closed the valve, they can pull the lever 18 upwards, causing the lever 18 to drive the insert rod 20 upwards through the connecting plate 19, thus releasing the fixing effect on the movable handle 15. At this time, move the movable handle 15 to the right and then release the lever 18, causing the return spring 21 to push the connecting plate 19 downwards under the elastic recovery action, so that the insert rod 20 is inserted into the limit block 14 through the round hole 16, thereby fixing the movable handle 15 again. At this time, the overall outward extension length of the movable handle 15 and the valve handle 3 will be reduced, thereby reducing the probability of the operator accidentally touching the valve handle 3 and the movable handle 15.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing accidental activation of valves in a coal mine hydraulic station, comprising a hydraulic station body (1), characterized in that: A controller (2) is fixedly installed on the front side of the top of the hydraulic station body (1). A valve handle (3) is movably installed on the top of the controller (2). A cylinder (4) is fixedly installed on the right side of the top of the valve handle (3). A first spring (5) is fixedly installed on the top of the inner surface of the cylinder (4). A round block (6) is fixedly connected to the bottom of the first spring (5). The outer surface of the round block (6) is movably sleeved with the inner surface of the cylinder (4) and the valve handle (3). A locking block (7) is fixedly connected to the bottom of the round block (6). A fixed round plate (8) located below the valve handle (3) is fixedly sleeved on the inner surface of the top of the controller (2). The fixed circular plate (8) has a locking hole (9) inside. The inner surface of the locking hole (9) is movably sleeved with the outer surface of the locking block (7). The outer surface of the top of the controller (2) is movably sleeved with a movable circular plate (10) located below the fixed circular plate (8). The top of the movable circular plate (10) is fixedly connected with a push block (11). The outer surface of the push block (11) is movably sleeved with the inner surface of the locking hole (9). The top of the movable circular plate (10) is fixedly connected with a second spring (12). The top of the second spring (12) is fixedly connected with the bottom of the fixed circular plate (8). The front end of the movable circular plate (10) is fixedly connected with a fixing block (13).

2. The anti-accidental contact device for the switching valve of a coal mine hydraulic station according to claim 1, characterized in that: A limiting block (14) is fixedly installed on the left side of the top of the valve handle (3), and a movable handle (15) is movably sleeved on the outer surface of the limiting block (14).

3. The anti-accidental contact device for the switching valve of a coal mine hydraulic station according to claim 2, characterized in that: A fixed bracket (17) is fixedly installed on the outer surface of the limiting block (14). The inner surface of the fixed bracket (17) is movably connected to the outer surface of the movable handle (15). A pull rod (18) is movably sleeved inside the top of the fixed bracket (17).

4. The anti-accidental contact device for the switching valve of a coal mine hydraulic station according to claim 3, characterized in that: The bottom of the pull rod (18) is fixedly connected to a connecting plate (19), and the bottom end of the connecting plate (19) is fixedly connected to a plug rod (20).

5. The anti-accidental contact device for the switching valve of a coal mine hydraulic station according to claim 4, characterized in that: The bottom end of the insertion rod (20) passes through the movable handle (15) and extends into the interior of the limiting block (14), and is movably sleeved with the inner walls of the limiting block (14) and the movable handle (15) respectively.

6. The anti-accidental contact device for the switching valve of a coal mine hydraulic station according to claim 4, characterized in that: A reset spring (21) is fixedly connected to the top of the connecting plate (19), and the top end of the reset spring (21) is fixedly connected to the top of the inner surface of the fixed bracket (17).

7. The anti-accidental contact device for the switching valve of a coal mine hydraulic station according to claim 2, characterized in that: A circular hole (16) is provided on the left side of the top of the movable handle (15), and the inner surface of the movable handle (15) is smooth.

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