Locking device for preventing misoperation of stop valve
By designing a locker for the cut-off door, the combination of limiting rod, fixed clamp, sliding clamp and locking connection components is used to solve the safety risk problems caused by the malfunction of the cut-off door, and achieve higher operation Security.
Patent Information
- Application Number
- CN202421422544.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-21
AI Technical Summary
The cutoff door is prone to open due to misoperation during equipment maintenance, resulting in personal injury and risk of equipment damage.
A locker is designed, including a limiting rod, a fixing clamp, a sliding clamp and a locking connection assembly. Through the fit of these components, the valve handle is clamped to prevent it from rotating accidentally.
It effectively prevents the shutter door from opening due to malfunction, reduces the risk of personal injury and equipment damage, and improves the safety of operation.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of stop doors, in particular to a locking device for preventing the stop door from malfunctioning. Background Art
[0002] Stop gates are widely used in many water, gas, steam and oil pipelines. The stop gates can be used to cut off or open the pipelines. When performing equipment maintenance, the stop gates need to be closed. However, if communication is not in place, other personnel may mistakenly open the stop gates, causing operational accidents, personal injury risks and equipment damage hazards. Therefore, a lock to prevent the stop gate from malfunctioning is proposed. Summary of the invention
[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a locking device for preventing a stop door from malfunctioning, so as to avoid personal injury and equipment damage caused by a person accidentally opening the stop door after it is closed.
[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a locking device for preventing a stop door from malfunctioning, comprising a limit rod, on which a limit groove is arranged along the length direction; the stop door installed on the pipeline has a valve handle, and the limit rod can be clamped on the valve handle through the limit groove; the limit rod is also provided with a fixed clamp block and a sliding clamp block, and the fixed clamp block and the sliding clamp block are clamped on both sides of the pipeline; the sliding clamp block is slidably inserted with the limit rod through a socket, and the socket can be sleeved on the valve handle as the sliding clamp block slides, so as to limit the separation of the limit rod and the valve handle.
[0005] Furthermore, a locking connection component is provided between the fixed clamp block and the sliding clamp block, and under the action of the locking connection component, the fixed clamp block cooperates with the sliding clamp block to clamp on the pipe.
[0006] Furthermore, the locking connection assembly includes a screw and a nut, and the screw passes through the fixed clamp block and the sliding clamp block and is locked by the nut.
[0007] Furthermore, two clamping rods extend from each of the fixed clamping block and the sliding clamping block, and the two clamping rods on the same clamping block are respectively located on both sides of the limit rod; the locking connection components have two groups, and the corresponding clamping rods on the fixed clamping block and the sliding clamping block are locked by each group of locking connection components.
[0008] Furthermore, vertical grooves are provided on the clamping rods of the fixed clamping block and the sliding clamping block. After the screw is inserted into the vertical grooves on the two corresponding clamping rods, it is locked by a nut; the screw can be adjusted vertically along the vertical grooves so that the screw can be tightly attached to the pipe.
[0009] Furthermore, the two screw rods in the two sets of locking connection assemblies are connected as a whole through a connecting rod, and are U-shaped after being connected as a whole.
[0010] Beneficial effect: The utility model is a locking device for preventing the stop gate from misoperating. Through the cooperation of a limit rod, a fixed clamp block, a movable clamp block and a locking connection assembly, the valve handle in a closed state can be clamped and fixed to the pipeline, preventing the valve handle from being opened due to mistaken rotation, thereby avoiding personal injury and equipment damage caused by mistaken opening of the stop gate. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Attached Figure 1 This is a schematic diagram of the installation of the locking device on the pipeline stop door;
[0012] Attached Figure 2 It is a structural schematic diagram of the locking device;
[0013] Attached Figure 3 Schematic diagram of the position of the valve handle when the stop valve is in the closed state. DETAILED DESCRIPTION
[0014] The utility model is further described below in conjunction with the accompanying drawings.
[0015] As attached Figures 1 to 3 The locking device for preventing the stop door from malfunctioning comprises a limit rod 1, on which a limit groove 2 is arranged along the length direction, that is, the limit groove 2 extends along the length direction of the limit rod 1. Figure 3 As shown in the figure, the stop valve 4 installed on the pipeline 3 has a valve handle 5, and the limit rod 1 can be clamped on the valve handle 5 through the limit groove 2. Figure 1 As shown in , a limiting groove 2 is provided below the limiting rod 1 , and the limiting groove 2 is pressed correspondingly on the valve handle 5 , and the valve handle 5 is limited by the side wall of the limiting groove 2 .
[0016] The limiting rod 1 is also provided with a fixed clamping block 6 and a sliding clamping block 7. Figure 1As shown in , the fixed clamp block 6 and the sliding clamp block 7 cooperate to clamp on both sides of the pipeline 3. The fixed clamp block 6 is fixedly connected to the limit rod 1. The sliding clamp block 7 is provided with a socket 8, the shape of which is adapted to the shape of the limit rod 1, and the sliding clamp block 7 is slidably inserted and matched with the limit rod 1 through the socket 8. When the limit groove 2 is sleeved on the valve handle 5, as the sliding clamp block 7 slides on the limit rod 1, the socket 8 can be sleeved on the valve handle 5 to limit the separation of the limit rod 1 from the valve handle 5, and since the fixed clamp block 6 and the sliding clamp block 7 cooperate to clamp on the pipeline 3, the valve handle 5 can be limited to rotate, thereby preventing personnel from mistakenly rotating the valve handle 5 and causing the stop gate 4 to open, thereby avoiding personal injury and equipment damage. In addition, the sliding clamp block 7 can be displaced on the limit rod 1, and the lock of the utility model can also adapt to stop gates 4 of different sizes to improve the versatility of the lock of the utility model.
[0017] There is a locking connection assembly between the fixed clamp block 6 and the sliding clamp block 7. Under the action of the locking connection assembly, the fixed clamp block 6 and the sliding clamp block 7 cooperate to clamp on the pipe 3. After the sliding clamp block 7 is locked with the fixed clamp block 6, the sliding clamp block 7 will not slide relative to the limit rod 1, so that the sleeve hole remains sleeved on the valve handle 5.
[0018] Specifically, the locking connection assembly includes a screw rod 9 and a nut 10 . The screw rod 9 passes through the fixed clamp block 6 and the sliding clamp block 7 and is locked by the nut 10 .
[0019] As attached Figure 3 As shown in FIG. 1 , two clamping rods 11 extend from the fixed clamping block 6, and two clamping rods 11 also extend from the sliding clamping block 7, and the clamping rods 11 on different clamping blocks correspond to each other. The two clamping rods 11 on the same clamping block are respectively located on both sides of the limit rod 1. When the limit rod 1 is clamped on the valve handle 5 through the limit groove 2, the two clamping rods 11 on the same clamping block are also respectively located on both sides of the valve handle 5. The two clamping rods 11 on the same clamping block are spaced apart, which is convenient for observing the stop valve 4.
[0020] The locking connection components have two groups, namely, two screw rods 9 and two nuts 10, and the corresponding clamping rods 11 on the fixed clamp block 6 and the sliding clamp block 7 are locked by each group of locking connection components, so that there is a group of locking connection components on each side of the valve handle 5, so that the fixed clamp block 6 and the sliding clamp block 7 can be better clamped on the pipe 3. If there is only one group of locking connection components between the fixed clamp block 6 and the sliding clamp block 7, since the stop gate 4 on the pipe 3 is not flat, the fixed clamp block 6 and the sliding clamp block 7 may still shake after being clamped on the pipe 3, resulting in the valve handle 5 still being driven by the shaking limit rod 1 to rotate a certain angle, affecting the opening and closing state of the stop gate 4.
[0021] The clamping rods 11 of the fixed clamping block 6 and the sliding clamping block 7 are both provided with vertical slide grooves 12. After the screw rod 9 is inserted into the vertical slide grooves 12 on the two corresponding clamping rods 11, it is locked by the nut 10. Since different stop gates 4 have different heights and shapes, the vertical slide grooves 12 are provided, and the screw rod 9 can be adjusted vertically along the vertical slide grooves 12. Therefore, when facing stop gates 4 of different heights and shapes, the screw rod 9 can be adjusted to be close to the pipe 3. At this time, the screw rod 9 and the limiting rod 1 cooperate to clamp on the upper and lower sides of the pipe 3, and can also ensure that the valve handle 5 is located in the limiting groove 2 of the limiting rod 1.
[0022] The two screw rods 9 in the two sets of locking connection components are connected as a whole through the connecting rod 13, and after being connected as a whole, they are U-shaped, which is convenient for inserting the two screw rods 9 into the vertical slide groove 12 at the same time, and is more convenient to use.
[0023] The working mode of the utility model is as follows: Figure 3 As shown in the figure, when the stop valve 4 is in the closed state, the valve handle 5 is perpendicular to the pipeline 3. At this time, the limit rod 1 is pressed on the valve handle 5, and the valve handle 5 is located in the limit groove 2. The fixed clamp block 6 and the sliding clamp block 7 are straddled on both sides of the pipeline 3, and then the sliding clamp block 7 is moved so that the sliding clamp block 7 and the fixed clamp block 6 are both tightly attached to the pipeline 3. Figure 1 As shown in the figure, at this time, the socket 8 on the sliding clamp 7 is also correspondingly sleeved on the valve handle 5 to limit the valve handle 5 and the limit rod 1 from separating from each other; then the two screws 9 are inserted into the corresponding vertical slide grooves 12, and the screws 9 are also close to the pipe 3, and then locked with nuts 10, the installation of the locking device is completed, which can prevent the valve handle 5 from being accidentally rotated by personnel and avoid the stop door 4 from being accidentally opened.
[0024] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A locking device for preventing a stop door from malfunctioning, characterized in that: The invention comprises a limit rod (1), on which a limit groove (2) is arranged along the length direction; a stop valve (4) installed on a pipeline (3) has a valve handle (5), and the limit rod (1) can be clamped on the valve handle (5) through the limit groove (2); a fixed clamp block (6) and a sliding clamp block (7) are also arranged on the limit rod (1), and the fixed clamp block (6) and the sliding clamp block (7) are clamped on both sides of the pipeline (3); the sliding clamp block (7) is slidably inserted with the limit rod (1) through a plug hole (8), and the plug hole (8) can be sleeved on the valve handle (5) with the sliding movement of the sliding clamp block (7) to limit the separation of the limit rod (1) and the valve handle (5).
2. A locking device for preventing a stop door from malfunctioning according to claim 1, characterized in that: A locking connection component is provided between the fixed clamp block (6) and the sliding clamp block (7). Under the action of the locking connection component, the fixed clamp block (6) and the sliding clamp block (7) cooperate to clamp onto the pipe (3).
3. A locking device for preventing a stop door from malfunctioning according to claim 2, characterized in that: The locking connection assembly comprises a screw rod (9) and a nut (10). The screw rod (9) passes through a fixed clamp block (6) and a sliding clamp block (7) and is then locked by the nut (10).
4. A locking device for preventing a stop door from malfunctioning according to claim 3, characterized in that: Two clamping rods (11) extend from each of the fixed clamping block (6) and the sliding clamping block (7), and the two clamping rods (11) on the same clamping block are respectively located on both sides of the limiting rod (1); the locking connection components have two groups, and the corresponding clamping rods (11) on the fixed clamping block (6) and the sliding clamping block (7) are locked by each group of locking connection components.
5. A locking device for preventing a stop door from malfunctioning according to claim 4, characterized in that: The clamping rods (11) of the fixed clamping block (6) and the sliding clamping block (7) are both provided with vertical sliding grooves (12). After the screw rod (9) is inserted into the vertical sliding grooves (12) on the two corresponding clamping rods (11), it is locked by a nut (10); the position of the screw rod (9) can be adjusted vertically along the vertical sliding grooves (12) so that the screw rod (9) can be closely attached to the pipe (3).
6. A locking device for preventing a stop door from malfunctioning according to claim 5, characterized in that: The two screw rods (9) in the two sets of locking connection components are connected as a whole through a connecting rod (13), and are U-shaped after being connected as a whole.