Valve locking device

Abstract

The utility model provides a valve locking device, which belongs to the technical field of valves and comprises a valve body and a rotatable handle at the top of the valve body, one end of the handle is provided with a valve body limiting bump, the top of the valve body is provided with a closing limiting block and an opening limiting block corresponding to the valve body limiting bump, and one side of the valve body limiting bump is provided with a locking component; the locking assembly comprises a locking rod, a mounting groove is formed in one side of the limiting protruding block of the valve body, the locking rod is arranged in the mounting groove in a sliding mode, limiting plates are arranged on the adjacent sides of the closing limiting block and the opening limiting block, locking holes are formed in the positions, corresponding to the locking rod, of the tops of the limiting plates, and the bottom end of the locking rod is arranged in one set of locking holes in a penetrating mode. The handle is locked through the locking device; compared with a traditional external lock chain or padlock, the built-in locking structure directly acts on a valve operation part, the loosening risk caused by vibration, collision or manual mistaken touch is avoided, it is ensured that the valve is kept in a stable state in the scene needing to be normally opened or normally closed, and stability is improved.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, and more specifically, it relates to a valve locking device. Background Technology

[0002] As a component that controls the flow and interruption of fluid, the stability of the valve's on / off state directly affects its operation.

[0003] Most valves on the market do not have a locking mechanism and are controlled by operating the handle. In scenarios where a specific state needs to be maintained for a long time, operators usually rely on external auxiliary tools for locking, such as using chains to bind the handle. These chains can easily come loose and cause the valve to close unexpectedly, resulting in a lack of stability. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a valve locking device to solve the technical problem in the prior art where traditional valves rely on external tools for locking, which can easily loosen and lead to misoperation, resulting in a lack of stability.

[0005] The purpose and effect of this valve locking device are achieved by the following specific technical means:

[0006] A valve locking device includes a valve body and a top-rotatable handle.

[0007] One end of the handle is provided with a valve body limiting protrusion, and the top of the valve body is provided with a closing limiting block and an opening limiting block corresponding to the valve body limiting protrusion. A locking component is provided on one side of the valve body limiting protrusion.

[0008] The locking assembly includes a locking rod. A mounting groove is provided on one side of the valve body limiting protrusion. The locking rod is slidably disposed in the mounting groove. A limiting plate is provided on the side adjacent to the closing limiting block and the opening limiting block. A locking hole is provided on the top of the limiting plate corresponding to the locking rod. The bottom end of the locking rod passes through one of the locking holes.

[0009] According to a preferred embodiment, the locking assembly further includes an operating lever, a sliding block is provided at the top end of the locking lever, and the operating lever is provided at one end of the sliding block;

[0010] A cover plate is provided at the opening of the mounting slot, and a sliding groove is provided on one side of the cover plate, through which one end of the operating rod can slide.

[0011] According to a preferred embodiment, limit blocks are provided on both sides of the sliding block, and two sets of limit grooves are respectively opened on the inner walls of both sides of the mounting groove corresponding to the two sets of limit blocks, and the two sets of limit blocks are slidably connected to the two sets of limit grooves respectively.

[0012] According to a preferred embodiment, a locking groove is provided on one side of the sliding groove corresponding to the operating rod, and a groove is provided on one side of one set of the limiting grooves corresponding to one set of the limiting blocks.

[0013] According to a preferred embodiment, a locking spring is provided between the mounting groove and the sliding block.

[0014] According to a preferred embodiment, a closing locking hole is provided on one side of the closing limiting block, an opening locking hole is provided on one side of the opening limiting block, and a valve body protrusion locking hole is provided on one side of the valve body limiting protrusion.

[0015] According to a preferred embodiment, the valve body protrusion locking hole is connected to the opening locking hole or the closing locking hole via a locking pin;

[0016] The locking pin has a through hole, and a pin is installed inside the through hole.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By cooperating with the valve body limiting protrusion and the closing or opening limiting block, initial positioning is provided when the valve reaches the fully open or fully closed position. The locking rod in the locking assembly can slide through the locking hole in the limiting plate to lock the handle. Compared with traditional external chains or padlocks, this built-in locking structure acts directly on the valve operating parts, avoiding the risk of loosening caused by vibration, collision or human error, ensuring that the valve remains stable in scenarios that require normally open or normally closed operation, thus improving stability.

[0019] 2. The operating lever moves within the sliding groove of the cover plate, thereby moving the locking lever to perform locking or unlocking operations. Limiting blocks on both sides of the sliding block engage with the limiting groove to ensure accurate movement. The locking spring, through its elastic action, pushes the locking lever to lock. The locking groove allows the lever to be moved laterally into the locking groove when pulled upwards to unlock, keeping the locking lever retracted for easy handle rotation. When locking is required, pushing the lever back into the sliding groove causes the locking lever to lock under the action of the locking spring, improving convenience.

[0020] 3. By setting the locking pin, when the valve is in the fully open or fully closed position, the valve body protrusion locking hole can be aligned and connected with the open or closed locking hole through the locking pin, and the pin further fixes the locking pin to form a double insurance; it prevents the valve from rotating unexpectedly and can also resist a certain degree of external force damage. Attached Figure Description

[0021] Figure 1This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is an exploded view of the present invention;

[0023] Figure 3 This is a schematic diagram of the assembled locking component in this utility model;

[0024] Figure 4 for Figure 3 A schematic diagram of the disassembled structure.

[0025] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0026] 11. Valve body; 12. Handle; 13. Valve body limiting protrusion; 14. Closing limiting block; 15. Opening limiting block; 16. Closing lock hole; 17. Opening lock hole; 18. Valve body protrusion lock hole; 19. Locking pin; 20. Pin; 21. Locking rod; 22. Mounting groove; 23. Limiting plate; 24. Locking hole; 25. Operating rod; 26. Sliding block; 27. Cover plate; 28. Sliding groove; 29. ​​Limiting block; 30. Locking groove; 31. Locking spring. Detailed Implementation

[0027] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0028] Example:

[0029] As attached Figure 1 To be continued Figure 4 As shown:

[0030] This utility model provides a valve locking device, including a valve body 11 and a rotatable handle 12 located on the top of the valve body 11. The handle 12 serves as the direct component for valve operation, and the valve body 11 is opened or closed by rotation. A valve body limiting protrusion 13 is provided at one end of the handle 12. A closing limiting block 14 and an opening limiting block 15 are provided on the top of the valve body 11 corresponding to the movement trajectory of the valve body limiting protrusion 13. Through the cooperation of the valve body limiting protrusion 13 with the closing limiting block 14 or the opening limiting block 15, when the valve is rotated to the fully open or fully closed position, the valve body limiting protrusion 13 contacts the corresponding limiting block, forming a physical block, providing initial positioning for the valve, limiting excessive rotation of the handle 12, and ensuring that the valve is in an accurate working state.

[0031] A locking assembly is provided on one side of the valve body limiting protrusion 13. The locking assembly includes a locking rod 21. An installation groove 22 is provided on one side of the valve body limiting protrusion 13. The locking rod 21 is slidably installed in the installation groove 22. A limiting plate 23 is provided on the side adjacent to the closing limiting block 14 and the opening limiting block 15. A locking hole 24 is provided on the top of the limiting plate 23 corresponding to the movement trajectory of the locking rod 21. When the valve is in the fully open or fully closed position, the locking rod 21 is pulled so that its bottom end passes into the corresponding locking hole 24. At this time, the locking rod 21 and the limiting plate 23 form a mechanical connection, thereby locking the handle 12. Compared with traditional external chains or padlocks, this built-in locking structure directly acts on the valve operating parts, avoiding the risk of loosening caused by vibration, collision or human accidental contact, ensuring that the valve remains stable in scenarios that require normal opening or normal closing, and improving the stability of the valve during use.

[0032] The locking assembly also includes an operating lever 25. A sliding block 26 is provided at the top of the locking lever 21. One end of the sliding block 26 is fixedly connected to the operating lever 25, making it easy for the operator to grip and apply force. A cover plate 27 is provided at the opening of the mounting groove 22. A sliding groove 28 is provided on one side of the cover plate 27. One end of the operating lever 25 can slide through the sliding groove 28. In actual operation, the operator pulls the operating lever 25 to move it in the sliding groove 28. The operating lever 25 drives the sliding block 26 and the locking lever 21 to move synchronously, thereby realizing the insertion or removal of the locking lever 21 and completing the locking or unlocking operation of the handle 12.

[0033] Limiting blocks 29 are provided on both sides of the sliding block 26. Two sets of limiting grooves are respectively opened on the inner walls of the two sets of limiting blocks 29 on both sides of the mounting groove 22. The two sets of limiting blocks 29 are slidably connected to the two sets of limiting grooves respectively. When the limiting blocks 29 slide in the limiting grooves, they can effectively restrict the movement direction of the sliding block 26, ensuring that the sliding block 26 can only move along the axial direction of the mounting groove 22, thereby ensuring the accurate movement trajectory of the locking rod 21 and preventing it from deviating during movement, which would affect the normal operation of locking or unlocking.

[0034] A locking groove 30 is provided on one side of the sliding groove 28 corresponding to the operating rod 25. When the operating rod 25 is pulled upward to unlock, when the locking rod 21 is fully retracted into the mounting groove 22, the operator can move the operating rod 25 horizontally into the locking groove 30. At this time, the operating rod 25 is limited by the locking groove 30, keeping the locking rod 21 in the retracted state, which allows the operator to freely rotate the handle 12 to open or close the valve. When locking is required, the operator pushes the operating rod 25 back into the sliding groove 28. The locking spring 31 set between the mounting groove 22 and the sliding block 26 will push the sliding block 26 and the locking rod 21 downward, so that the locking rod 21 is inserted into the corresponding locking hole 24 to complete the locking operation, which improves the convenience of valve locking and unlocking operations. One of the limiting slots has a groove on one side corresponding to one of the limiting blocks 29. When the horizontal operating rod 25 is moved, the sliding block 26 drives the limiting block 29 into the groove to avoid the limiting block 29 interfering with the horizontal movement of the operating rod 25 and to ensure the smoothness of the operation.

[0035] A locking spring 31 is provided between the mounting groove 22 and the sliding block 26. During the unlocking operation, the operator pulls the operating rod 25 to overcome the elastic force of the locking spring 31, causing the locking rod 21 to retract into the mounting groove 22. During the locking operation, the operator pushes the operating rod 25 back into the sliding groove 28, and the locking spring 31 releases its elastic potential energy. By pushing the sliding block 26, the locking rod 21 moves downward and inserts into the locking hole 24 on the closing limit block 14 or the opening limit block 15, thereby locking the handle 12 and ensuring that the valve remains in a specific working state.

[0036] A closing locking hole 16 is provided on one side of the closing limit block 14, an opening locking hole 17 is provided on one side of the opening limit block 15, and a valve body protrusion locking hole 18 is provided on one side of the valve body limiting protrusion 13. When the valve is in the fully open position, the valve body protrusion locking hole 18 is aligned with the opening locking hole 17, and when the valve is in the fully closed position, the valve body protrusion locking hole 18 is aligned with the closing locking hole 16. The valve body protrusion locking hole 18 is connected to the opening locking hole 17 or the closing locking hole 16 through a locking pin 19. The locking pin 19 has a through hole, and a pin 20 is provided in the through hole. After the pin 20 is inserted into the through hole, it can prevent the locking pin 19 from falling out of the locking hole and further fix the locking pin 19. This double locking method not only effectively prevents the valve from rotating accidentally, but also resists a certain degree of external force damage and improves stability.

[0037] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A valve locking device, comprising a valve body (11) and a top-rotatable handle (12), characterized in that: One end of the handle (12) is provided with a valve body limiting protrusion (13), and the top of the valve body (11) is provided with a closing limiting block (14) and an opening limiting block (15) corresponding to the valve body limiting protrusion (13). A locking component is provided on one side of the valve body limiting protrusion (13). The locking assembly includes a locking rod (21). A mounting groove (22) is provided on one side of the valve body limiting protrusion (13). The locking rod (21) is slidably disposed in the mounting groove (22). A limiting plate (23) is provided on the side adjacent to the closing limiting block (14) and the opening limiting block (15). A locking hole (24) is provided on the top of the limiting plate (23) corresponding to the locking rod (21). The bottom end of the locking rod (21) passes through one of the locking holes (24).

2. The valve locking device according to claim 1, characterized in that: The locking assembly also includes an operating lever (25), a sliding block (26) is provided at the top of the locking lever (21), and the operating lever (25) is provided at one end of the sliding block (26). A cover plate (27) is provided at the opening of the mounting groove (22), and a sliding groove (28) is provided on one side of the cover plate (27). One end of the operating rod (25) can slide through the sliding groove (28).

3. A valve locking device according to claim 2, characterized in that: Limiting blocks (29) are provided on both sides of the sliding block (26). Two sets of limiting grooves are respectively opened on the inner walls of the two sets of limiting blocks (29) on both sides of the mounting groove (22). The two sets of limiting blocks (29) are slidably connected to the two sets of limiting grooves respectively.

4. A valve locking device according to claim 3, characterized in that: A locking groove (30) is provided on one side of the sliding groove (28) corresponding to the operating rod (25), and a groove is provided on one side of one set of the limiting grooves corresponding to one set of the limiting blocks (29).

5. A valve locking device according to claim 2, characterized in that: A locking spring (31) is provided between the mounting groove (22) and the sliding block (26).

6. A valve locking device according to claim 1, characterized in that: The closing limit block (14) has a closing lock hole (16) on one side, the opening limit block (15) has an opening lock hole (17) on one side, and the valve body limit protrusion (13) has a valve body protrusion lock hole (18) on one side.

7. A valve locking device according to claim 6, characterized in that: The valve body protrusion locking hole (18) is connected to the opening locking hole (17) or the closing locking hole (16) via a locking pin (19); The locking pin (19) has a through hole, and a pin (20) is provided in the through hole.

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