A high-voltage switch cabinet door anti-misoperation locking device
By designing a support plate, locking mechanism, and cable management mechanism, the problem of unstable locking of the high-voltage switchgear door under mechanical wear and external impact is solved, achieving stable locking of the door and rapid fixing of wires, thus improving the safety and operational efficiency of the high-voltage switchgear.
Patent Information
- Application Number
- CN202521772092.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-20
AI Technical Summary
Existing anti-misoperation locking devices for high-voltage switchgear doors are prone to failure under mechanical wear or external impact, and the locking is not closely linked to the electrical status, affecting safety and operational efficiency.
A high-voltage switchgear cabinet door anti-misoperation locking device was designed, which includes a support plate, a locking mechanism, and a cable management mechanism. The mechanical structure of the support rod, rotating column, and locking block is used to achieve stable locking of the cabinet door, and the hollow cone block driven by the non-centered cam clamps the wires to ensure that the wires are fixed and organized.
It effectively prevents misoperation, improves equipment safety and wire management efficiency, ensures stable door closure and wire fixation, and enhances the safety and operational reliability of high-voltage switchgear.
Smart Images
Figure CN224683673U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-voltage operation locking technology, and in particular to a high-voltage switchgear cabinet door anti-misoperation locking device. Background Technology
[0002] High-voltage switchgear is widely used in power systems for power generation, transmission, and distribution, and its safe operation is of paramount importance. However, in actual operation and maintenance, misoperation can lead to serious safety accidents, such as electric shock and short circuits. Therefore, all high-voltage electrical equipment that may cause misoperation should be equipped with anti-misoperation devices.
[0003] Typically, the anti-misoperation locking device for high-voltage switchgear doors consists of a handle, the door, and a circuit breaker. When the handle is turned, the internal locking mechanism is activated via a mechanical transmission device to lock and unlock the door. The door is equipped with a special locking structure that is linked to the circuit breaker. When the circuit breaker is de-energized, the locking mechanism automatically locks the door. The on / off state of the circuit breaker is directly related to the door locking mechanism, ensuring that the door cannot be opened in dangerous situations.
[0004] In some existing devices, wear or external impacts on mechanical parts can cause locking failure, creating a risk of misoperation. Furthermore, the locking mechanism of some devices is not closely linked to the electrical state, failing to automatically adjust the locking status according to the actual operating conditions of the high-voltage switchgear. This allows the cabinet door to be accidentally opened while the equipment is energized, or fails to unlock promptly after power failure, affecting operational efficiency. Therefore, a high-voltage switchgear door anti-misoperation locking device is proposed to address these problems. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a high-voltage switchgear cabinet door anti-misoperation locking device, which aims to improve the problem that some existing devices cannot lock the cabinet door.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-voltage switchgear cabinet door anti-misoperation locking device includes a cabinet body, with multiple support plates slidably connected inside the cabinet body, a locking mechanism provided on one side of the multiple support plates, and a cable management mechanism provided on the outside of the support plates. The locking mechanism includes multiple support rods. The outer side of each pair of support rods is fixedly connected to the outer front side of the support plate. A rotating column is rotatably connected to the outer side of the support rod, i.e., the side away from the support plate. A locking block is fixedly connected to the outer side of the rotating column. Two locking pins are slidably connected to the outer side of the locking block. A slider is fixedly connected to the outer side of the two locking pins. A limit component is provided on the outer side of the support plate, i.e., the side near the support rods. Multiple through slots are opened on the outer front side of the cabinet, and the outer side of the locking block is slidably connected to the inside of the through slots. As a further description of the above technical solution: The limiting component includes two slots, the two slots are slidably connected to the outside of the support plate, i.e., on the same side near the support rod. Sliding grooves are provided on both sides of the inner wall of the cabinet, and sliding plates are provided on both sides of the inner wall of the cabinet. The slots are slidably connected to the inside of the sliding plates, and the support plate is slidably connected to the inside of the sliding grooves. As a further description of the above technical solution: The cable management mechanism includes multiple support plates, the external parts of which are fixedly connected to the outside of the support plate, and a first connecting plate is fixedly connected to the external parts of the multiple support plates. As a further description of the above technical solution: The support plate has two sliding connections on its exterior, and the exterior of the connecting blocks is vertically located at the bottom of the first connecting plate. As a further description of the above technical solution: A second connecting plate is fixedly connected to the outside of the two connecting blocks, and the outside of the second connecting plate is vertically located at the bottom of the first connecting plate; As a further description of the above technical solution: The bottom of the second connecting plate is fixedly connected to a plurality of hollow cone blocks, and the outside of the first connecting plate is rotatably connected to a cam; As a further description of the above technical solution: The outer part of the cam is located on the top of the second connecting plate, and the outer part of the cam is in contact with the top of the second connecting plate. As a further description of the above technical solution: The cam rotates non-circularly, so that one side of its convex surface is larger than the other side when it rotates.
[0007] This utility model has the following beneficial effects: 1. In this utility model, the support rod is a horizontal support. The locking block passes through the through groove on the cabinet door. The locking block is rotated by the rotating column, so that it is locked on the outside of the cabinet door. At this time, the locking column is pushed by the slider and limited to the inside of the cabinet door to prevent the locking block from falling off automatically. This design can not only effectively prevent misoperation and improve the safety and reliability of the equipment, but also ensure that the cabinet door maintains a stable closed state when locked.
[0008] 2. In this utility model, the wire is passed through the hollow cone block, and then the second connecting plate is moved downward by rotating the cam, which uses its non-central rotation characteristic to squeeze and clamp the wire, effectively preventing the wire from shaking and falling off. This wire management method is simple and quick to operate, and can significantly improve the efficiency of wire management, ensuring that the wires are neat and orderly. Attached Figure Description
[0009] Figure 1 This is a three-dimensional schematic diagram of a high-voltage switchgear cabinet door anti-misoperation locking device proposed in this utility model; Figure 2 This is a schematic diagram of the locking pin structure of a high-voltage switchgear cabinet door anti-misoperation locking device proposed in this utility model; Figure 3 This is a schematic diagram of the slot structure of a locking device for preventing misoperation of a high-voltage switchgear door, as proposed in this utility model. Figure 4 This is a schematic diagram of the structure of a cam in a high-voltage switchgear cabinet door anti-misoperation locking device proposed in this utility model; Figure 5 This is a schematic diagram of the hollow cone block of a high-voltage switchgear door anti-misoperation locking device proposed in this utility model.
[0010] Legend: 1. Cabinet body; 2. Support plate; 3. Locking mechanism; 31. Support rod; 32. Rotating column; 33. Locking block; 34. Sliding block; 35. Locking post; 36. Limiting component; 361. Locking groove; 362. Sliding plate; 363. Sliding groove; 37. Through groove; 4. Cable management mechanism; 41. Support plate; 42. First connecting plate; 43. Cam; 44. Second connecting plate; 45. Connecting block; 46. Hollow cone block. Detailed Implementation
[0011] 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.
[0012] Reference Figures 1 to 3 The present invention provides an embodiment of a high-voltage switch cabinet door anti-misoperation locking device, including a cabinet body 1, which is designed to consist of a cabinet door and a vertical cabinet. Multiple support plates 2 are slidably connected inside the cabinet body 1, which are designed to provide support capacity so that electronic components can be placed. A locking mechanism 3 is provided on one side of the multiple support plates 2, and a cable management mechanism 4 is provided on the outside of the support plates 2. The locking mechanism 3 includes multiple support rods 31, designed to provide support for lateral support via the support plate 2. The outer side of each pair of support rods 31 is fixedly connected to the outer front side of the support plate 2. A rotating column 32 is rotatably connected to the outer side of each support rod 31 (away from the support plate 2), providing rotational capability for rotation within the support rod 31. A locking block 33 is fixedly connected to the outer side of the rotating column 32, providing locking capability. When the cabinet door is closed, the locking block 33 can pass through the door and then be locked onto the outside of the cabinet door by the rotating column 32, thus limiting its movement. Two locking posts 35 are slidably connected to the outer side of the locking block 33, providing support for locking into the inside of the cabinet door. A slider 34 is fixedly connected to the outer side of the two locking posts 35, providing sliding capability. When the slider 34 slides, it drives the locking posts 35 to slide, so that after the locking block 33 passes through the cabinet door and is locked onto the outside of the door, the slider... 34 drives the locking post 35 to push, thus limiting it inside the cabinet door and restricting the locking block 33 to prevent it from falling off automatically. A limiting component 36 is provided on the outside of the support plate 2, near the support rod 31. The limiting component 36 includes two slots 361, designed to provide sliding capability. The two slots 361 are slidably connected to the outside of the support plate 2, near the support rod 31, on the same side. Sliding grooves 363 are provided on both sides of the inner wall of the cabinet 1, designed to provide sliding capability. This allows the support plate 2 to slide for easy maintenance. Sliding plates 362 are provided on both sides of the inner wall of the cabinet 1. The design provides limiting capability, allowing the support plate 2 to be limited by sliding inside the sliding plate 362. The external of the slot 361 is slidably connected to the inside of the sliding plate 362, and the external of the support plate 2 is slidably connected to the inside of the sliding groove 363. Multiple through slots 37 are provided on the front of the cabinet 1, and the external of the block 33 is slidably connected to the inside of the through slot 37.
[0013] Reference Figure 4 and Figure 5The cable management mechanism 4 includes multiple support plates 41, designed to provide support. The support plates 41 are externally fixedly connected to the outside of the support plate 2. A first connecting plate 42 is also externally fixedly connected to the support plates 41, designed to provide lateral support. Two connecting blocks 45 are slidably connected to the outside of the support plates 41, designed to provide sliding capability, allowing them to slide outside the support plates 41. The connecting blocks 45 are vertically located at the bottom of the first connecting plate 42. A second connecting plate 44 is fixedly connected to the outside of the two connecting blocks 45, designed to provide support and allowing the second connecting plate 44 to slide up and down via the sliding of the connecting blocks 45. The second connecting plate 44 is vertically located at the bottom of the first connecting plate 42. Multiple hollow cone blocks 46 are fixedly connected to the bottom. Their design allows for locking. Through their cone shape, wires are placed inside the hollow cone blocks 46. Then, the connecting block 45 drives the second connecting plate 44 to slide, which can lock the wires inside the electronic components, preventing the wires from shaking and falling off. A cam 43 is rotatably connected to the outside of the first connecting plate 42. The outside of the cam 43 is located on the top of the second connecting plate 44, and the outside of the cam 43 is in contact with the top of the second connecting plate 44. The cam 43 rotates non-circularly, so that one side of its convex surface is larger than the other side when rotating, which can lock its convex surface onto the top of the second connecting plate 44. When locked, it can drive the hollow cone blocks 46 to lock the wires, thus maintaining stability.
[0014] Working principle: When locking the cabinet door is required, first close the cabinet door to close it to the cabinet. At this time, the support plate 2 slides to the appropriate position, and the support rod 31 provides lateral support. The locking block 33 passes through the through groove 37 on the cabinet door, and the locking block 33 is rotated by the rotating column 32 to lock it on the outside of the cabinet door. At this time, the locking column 35 is pushed by the slider 34 and limited to the inside of the cabinet door to prevent the locking block 33 from falling off automatically. The locking groove 361, with the cooperation of the sliding plate 362 and the sliding groove 363, restricts the movement direction of the locking block 33 to ensure its stable engagement. When unlocking is required, reverse the operation to disengage the locking block 33 from the cabinet door, and the slider 34 drives the locking column 35 to reset, thus opening the cabinet door. When it is necessary to organize and secure the wires inside the high-voltage switchgear, first, pass the wires through the hollow cone block 46. Then, by rotating the cam 43, which rotates non-centrally with one side having a larger convex surface than the other, its convex surface clamps onto the top of the second connecting plate 44 during rotation, causing the second connecting plate 44 to move downwards. At this time, the connecting block 45 slides on the support plate 41, causing the second connecting plate 44 to move downwards, so that the hollow cone block 46 squeezes and clamps the wires, fixing them inside the electronic components and preventing them from shaking and falling off. When it is necessary to loosen the wires, rotate the cam 43 in the opposite direction. The convex surface of the cam 43 decreases, reducing the pressure on the second connecting plate 44. Under the action of external force, the second connecting plate 44 moves upwards, and the hollow cone block 46 loosens its clamping of the wires, facilitating wire adjustment and maintenance. The entire wire management process achieves rapid clamping and loosening of the wires through the rotation of the cam 43, making operation simple and effectively organizing and securing the wires.
[0015] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A high-voltage switchgear cabinet door anti-misoperation locking device, comprising a cabinet body (1), characterized in that: The cabinet (1) has multiple support plates (2) slidably connected inside. A locking mechanism (3) is provided on one side of the outside of the multiple support plates (2). A cable management mechanism (4) is provided on the outside of the support plates (2). The locking mechanism (3) includes multiple support rods (31). The outer side of each pair of support rods (31) is fixedly connected to the outer front side of the support plate (2). A rotating column (32) is rotatably connected to the outer side of the support rod (31), i.e. the side away from the support plate (2). A locking block (33) is fixedly connected to the outer side of the rotating column (32). Two locking pins (35) are slidably connected to the outer side of the locking block (33). A slider (34) is fixedly connected to the outer side of the two locking pins (35). A limit assembly (36) is provided on the outer side of the support plate (2), i.e. the side close to the support rod (31). Multiple through slots (37) are opened on the outer front side of the cabinet (1), and the outer side of the locking block (33) is slidably connected to the inside of the through slot (37).
2. The anti-misoperation locking device for a high-voltage switchgear door according to claim 1, characterized in that: The limiting component (36) includes two slots (361), the two slots (361) are slidably connected to the outside of the support plate (2), that is, to the same side near the support rod (31). The inner walls of the cabinet (1) are provided with sliding grooves (363), the inner walls of the cabinet (1) are provided with sliding plates (362), and the slots (361) are slidably connected to the inside of the sliding plates (362). The support plate (2) is slidably connected to the inside of the sliding grooves (363).
3. The anti-misoperation locking device for a high-voltage switchgear door according to claim 1, characterized in that: The cable management mechanism (4) includes multiple support plates (41), the external of the multiple support plates (41) is fixedly connected to the outside of the support plate (2), and the external of the multiple support plates (41) is fixedly connected to a first connecting plate (42).
4. The anti-misoperation locking device for a high-voltage switchgear door according to claim 3, characterized in that: The support plate (41) has two connecting blocks (45) slidably connected to its exterior, and the exterior of the connecting blocks (45) is vertically located at the bottom of the first connecting plate (42).
5. A high-voltage switchgear cabinet door anti-misoperation locking device according to claim 4, characterized in that: The two connecting blocks (45) are externally fixedly connected to a second connecting plate (44), and the exterior of the second connecting plate (44) is vertically located at the bottom of the first connecting plate (42).
6. The anti-misoperation locking device for a high-voltage switchgear door according to claim 5, characterized in that: The bottom of the second connecting plate (44) is fixedly connected to a plurality of hollow cone blocks (46), and the outside of the first connecting plate (42) is rotatably connected to a cam (43).
7. A high-voltage switchgear cabinet door anti-misoperation locking device according to claim 6, characterized in that: The outer side of the cam (43) is located on the top of the second connecting plate (44), and the outer side of the cam (43) is in contact with the top of the second connecting plate (44).
8. A high-voltage switchgear cabinet door anti-misoperation locking device according to claim 7, characterized in that: The cam (43) rotates non-circularly, so that one side of its convex surface is larger than the other side when it rotates.