Circuit breaker padlock device
By designing an adjustable-spacing bracket and a claw-fixing structure, the problem of insufficient applicability of existing circuit breaker padlock devices is solved, enabling stable fixing of circuit breakers of different widths and control by multiple people, thus improving the versatility and reliability of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-03
Smart Images

Figure CN224082350U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of circuit breaker protection devices, specifically a circuit breaker padlock device. Background Technology
[0002] Circuit breakers are indispensable and crucial electrical devices in power systems, performing several key functions. First, under normal circuit conditions, circuit breakers reliably close the circuit, allowing current to flow; simultaneously, they stably carry the current, ensuring the normal operation of the power system. Furthermore, when it is necessary to disconnect the circuit, circuit breakers can perform this operation quickly and safely, thus facilitating maintenance, repair, or other purposes.
[0003] According to Chinese Patent No. CN205656983U, a circuit breaker operating padlock device includes a locking rod and a fixing device. The locking rod is a slender rectangular parallelepiped with two large holes and one small hole in the middle of its upper surface. Both the large and small holes are circular. The large holes are used for padlocking, and the small hole is used to fix the device in the working position. The fixing device is U-shaped, with a pair of corresponding square holes in the middle of both sides. The square holes are large enough to accommodate the locking rod and allow it to move freely within them. When in use, the locking rod is inserted into one of the pair of square holes. The fixing device has pairs of bolt holes on all three sides for fixing. The fixing device has notches at the intersections of the three sides for easy gripping.
[0004] In the above scheme, the locking rod is inserted into the square hole, and the locking rod is pushed to the right to the working position. The lock is inserted into the large hole to fix it, so the circuit breaker's operating handle cannot be inserted into the switch cabinet for operation. The above scheme still has the following disadvantages: Since there are many types of circuit breakers and the width of circuit breakers varies, and the position of the square hole mentioned above is not adjustable, it can only be applied to circuit breakers of one width. Utility Model Content
[0005] The purpose of this utility model is to provide a circuit breaker padlock device to solve the problem that, due to the large variety of circuit breakers and their varying widths, the square hole position mentioned above is not adjustable and therefore can only be applied to circuit breakers of one width.
[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a circuit breaker padlock device, including a mounting plate, two brackets slidably disposed on one side of the mounting plate, mounting boxes respectively connected to the top surfaces of the two brackets, a spring disposed inside the mounting box, a mounting hole opened on one side of the mounting box, a fixing block disposed inside the mounting hole, one end of the spring connected to the fixing block, several fixing holes opened on one side of the mounting plate, one end of the fixing block inserted into the first fixing hole, and claws respectively disposed on one side of the two brackets.
[0007] Preferably, the mounting plate has two first sliding grooves, and a first slider is slidably disposed inside the two first sliding grooves. The top surfaces of the two first sliders are respectively connected to the sides of the two brackets.
[0008] Preferably, a sliding groove is provided on one side of each of the two brackets, and the two claws are slidably disposed in the sliding grooves. A plurality of adjustment holes are provided on the other side of each of the two brackets. A second fixing hole is provided on one side of each claw. A fixing bolt is rotatably inserted into the adjustment hole, and one end of the fixing bolt passes through the adjustment hole and is threadedly connected to the second fixing hole.
[0009] Preferably, the two jaws face opposite directions.
[0010] Preferably, the top surfaces of the two mounting boxes are respectively provided with second sliding grooves, and the interiors of the two second sliding grooves are respectively provided with second sliders, the bottom surfaces of the two second sliders being connected to the top surfaces of the two fixing blocks respectively.
[0011] Preferably, the mounting plate has several locking holes on its side, and these locking holes are used for padlocks.
[0012] Compared with the prior art, the circuit breaker padlock device adopting the above technical solution has the following beneficial effects:
[0013] First, the operator disconnects the circuit breaker switch. Then, the operator places the mounting plate on the bottom of the circuit breaker and aligns the locking hole with the circuit breaker switch. The operator then adjusts the distance between the two brackets according to the width of the circuit breaker switch. By pushing one of the second sliders, the fixing block moves, compressing a spring. When the spring is compressed, the bracket can move on the mounting plate. When the bracket reaches a position suitable for the circuit breaker width, the previously pushed second slider is released. The spring, due to its own elasticity, resets the fixing block, pushing it back into the pre-set first fixing hole on the mounting plate, thus securely locking one bracket to the mounting plate. The above operation is repeated to securely lock the other bracket to the mounting plate. The two brackets clamp the sides of the circuit breaker, thus fixing the entire device to the circuit breaker. By adjusting the distance between the two brackets, this device can be adapted to circuit breakers of different widths, improving its versatility and flexibility.
[0014] After the above operations are completed, the operator can slide the claw into the sliding groove and align the bottom surface of the claw with the top surface of the circuit breaker. Then, the operator can fix the position of the claw with the fixing bolts to ensure that the whole device will not loosen after being fixed with the circuit breaker, thus improving the overall stability.
[0015] 2. During use, the claws are connected to the padlock part through the bracket. By adjusting the bracket, the claws can be moved away from or closer to each other to adapt to different widths of top cover openings and ensure that the claws can be firmly locked onto the circuit breaker. The fixing bolts firmly fix the two claws to the bracket, improving the overall reliability of the padlock device.
[0016] Third, during use, when the circuit breaker is operating in an important working environment, one person cannot determine the operation of the equipment, or when different people perform segmented maintenance on the line and the circuit breaker can only be operated after each segment is maintained, the preset locking holes enable multi-person multi-lock control, ensuring that the circuit breaker does not malfunction. Attached Figure Description
[0017] Figure 1 This is a perspective view of the usage state of an embodiment.
[0018] Figure 2 This is a three-dimensional view of the fixed block in an embodiment.
[0019] Figure 3 This is a split perspective view of the first groove in the embodiment.
[0020] Figure 4 This is a split perspective view of the sliding groove in an embodiment.
[0021] Figure 5 This is a perspective view of the mounting hole in an embodiment.
[0022] In the diagram: 1. Mounting plate; 2. Bracket; 3. Mounting box; 4. Spring; 5. Mounting hole; 6. Fixing block; 7. First fixing hole; 8. Claw; 9. First sliding groove; 10. First slider; 11. Sliding groove; 12. Adjustment hole; 13. Second fixing hole; 14. Fixing bolt; 15. Second sliding groove; 16. Second slider; 17. Locking hole. Detailed Implementation
[0023] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0024] like Figures 1-4 As shown, a circuit breaker padlock device includes a mounting plate 1. Two brackets 2 are slidably mounted on one side of the mounting plate 1. Mounting boxes 3 are respectively connected to the top surfaces of the two brackets 2. A spring 4 is installed inside the mounting box 3. A mounting hole 5 is opened on one side of the mounting box 3, and a fixing block 6 is installed inside the mounting hole 5. One end of the spring 4 is connected to the fixing block 6. A plurality of first fixing holes 7 are opened on one side of the mounting plate 1, and one end of the fixing block 6 is inserted into the first fixing hole 7. A claw 8 is respectively provided on one side of the two brackets 2. The mounting plate 1... Two first sliding grooves 9 are provided, and first sliders 10 are slidably arranged inside the two first sliding grooves 9. The top surfaces of the two first sliders 10 are respectively connected to the sides of the two brackets 2. A sliding groove 11 is provided on one side of each of the two brackets 2. Two claws 8 are slidably arranged in the sliding grooves 11. The two claws 8 face opposite directions. A second sliding groove 15 is provided on the top surface of each of the two mounting boxes 3. A second slider 16 is provided inside the two second sliding grooves 15. The bottom surfaces of the two second sliders 16 are respectively connected to the top surfaces of the two fixing blocks 6.
[0025] In use, the operator first disconnects the circuit breaker switch from power. Then, the operator places the mounting plate 1 on the bottom of the circuit breaker and inserts the locking hole 17 into the circuit breaker switch. At this point, the operator adjusts the spacing between the two brackets 2 according to the width of the circuit breaker switch.
[0026] By pushing one of the second sliders 16, the fixing block 6 is moved. The movement of the fixing block 6 compresses the spring 4. When the spring 4 is compressed, the bracket 2 can move on the mounting plate 1. When the bracket 2 moves to a position suitable for the width of the circuit breaker, the previously pushed second slider 16 is released. The spring 4, due to its own elasticity, resets the fixing block 6, pushing it back into the preset first fixing hole 7 on the mounting plate 1, thus securely locking one of the brackets 2 onto the mounting plate 1. The above operation is repeated to securely lock the other bracket 2 onto the mounting plate 1. The two brackets 2 clamp the two sides of the circuit breaker, thereby fixing the entire device onto the circuit breaker. By adjusting the distance between the two brackets 2, this device can be adapted to circuit breakers of different widths, improving the versatility and flexibility of the device.
[0027] After the above operations are completed, the operator can slide the claw 8 into the sliding groove 11 and align the bottom surface of the claw 8 with the top surface of the circuit breaker. Then, the operator can fix the position of the claw 8 with the fixing bolt 14 to ensure that the whole device will not loosen after being fixed with the circuit breaker, thus improving the overall stability.
[0028] like Figures 1-4 As shown, several adjustment holes 12 are opened on the other side of the two brackets 2 respectively, and a second fixing hole 13 is opened on one side of the claw 8. A fixing bolt 14 is inserted into the adjustment hole 12 by rotation. One end of the fixing bolt 14 passes through the adjustment hole 12 and is threadedly connected to the second fixing hole 13.
[0029] During use, the claw 8 is connected to the padlock part through the bracket 2. By adjusting the bracket 2, the claws 8 can be moved away from or closer to each other to adapt to the top cover opening of different widths and ensure that the claws 8 can be firmly locked onto the circuit breaker. The fixing bolt 14 firmly fixes the two claws 8 to the bracket 2, improving the overall reliability of the padlock device.
[0030] like Figures 1-4 As shown, the side of the mounting plate 1 has several lock holes 17 for padlocks.
[0031] In use, when the circuit breaker is operating in an important working environment, one person cannot determine the operation of the equipment, or when different people perform segmented maintenance on the line and the circuit breaker can only be operated after each segment is maintained, the preset locking hole 17 enables multi-person multi-lock control, ensuring that the circuit breaker does not misoperate.
[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A circuit breaker padlock device comprising a mounting plate (1), one side of which is slidably provided with two brackets (2), characterized in that, The top surface of two supports (2) is respectively connected with a mounting box (3), the inside of the mounting box (3) is provided with a spring (4), one side of the mounting box (3) is provided with a mounting hole (5), the inside of the mounting hole (5) is provided with a fixed block (6), one end of the spring (4) is connected with the fixed block (6), one side of the mounting plate (1) is provided with a plurality of first fixing holes (7), one end of the fixed block (6) is inserted into the first fixing hole (7), one side of two supports (2) is respectively provided with a claw (8).
2. The circuit breaker lockout device of claim 1, wherein: The mounting plate (1) is provided with two first sliding grooves (9), the inside of two first sliding grooves (9) is slidably provided with a first sliding block (10), the top surface of two first sliding blocks (10) is respectively connected with the side surface of two supports (2).
3. The circuit breaker lockout device of claim 1, wherein: One side of two supports (2) is respectively provided with a sliding groove (11), two claws (8) are respectively slidably provided with the sliding groove (11), the other side of two supports (2) is respectively provided with a plurality of adjusting holes (12), one side of the claw (8) is provided with a second fixing hole (13), the inside of the adjusting hole (12) is rotatably provided with a fixed bolt (14), one end of the fixed bolt (14) passes through the adjusting hole (12) and is threadedly connected with the second fixing hole (13).
4. The circuit breaker lockout device of claim 1, wherein: Two claws (8) are opposite to each other.
5. The circuit breaker lockout device of claim 1, wherein: The top surface of two mounting boxes (3) is respectively provided with a second sliding groove (15), the inside of two second sliding grooves (15) is respectively provided with a second sliding block (16), the bottom surface of two second sliding blocks (16) is respectively connected with the top surface of two fixed blocks (6).
6. The circuit breaker lockout device of claim 1, wherein: The side surface of the mounting plate (1) is provided with a plurality of mortise lock holes (17), a plurality of mortise lock holes (17) are used for padlocks.