Circuit breaker locking device

Abstract

The utility model relates to a circuit breaker locking device, and relates to the technical field of electric power engineering. The breaker locking device comprises a clamping assembly, an insulation panel and a grounding assembly, the clamping assembly can be fixed on the breaker, the insulation panel is detachably connected with the clamping assembly, the insulation panel is provided with a locking hole for a handle of the breaker to pass through, and the grounding assembly is detachably connected with the insulation panel. The clamping assembly can flexibly select a fixing position on the circuit breaker, so that a handle of the circuit breaker can penetrate through a locking hole formed in the insulating panel, the handle is locked, and false switching-on operation is effectively avoided. And the grounding assembly connected with the insulating panel can realize grounding of the circuit breaker, so that the personnel safety during maintenance operation is further guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power engineering, in particular to a circuit breaker locking device. Background Art

[0002] A circuit breaker is a switching device that can close, carry and disconnect the current under normal circuit conditions and can close, carry and disconnect the current under abnormal circuit conditions within a specified time. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Circuit breakers are generally used at the front end of power supply lines. When performing power outage maintenance operations, the circuit breaker of the corresponding circuit in the distribution box is disconnected, and a safety sign of "Someone is working, do not close the circuit" is hung. There is no switch lock or reliable short-circuit sealing measure in the disconnected circuit, which makes it easy for non-professionals or people for unknown reasons to mistakenly close the circuit, causing personal injury or equipment loss. Utility Model Content

[0003] The utility model provides a circuit breaker locking device, which can effectively prevent the circuit breaker from being mistakenly closed and ensure the safety of operation.

[0004] The utility model provides a circuit breaker locking device, comprising a clamping assembly, an insulating panel and a grounding assembly, wherein the clamping assembly can be fixed on the circuit breaker, the insulating panel is detachably connected to the clamping assembly, a locking hole for the handle of the circuit breaker to pass through is provided on the insulating panel, and the grounding assembly is detachably connected to the insulating panel.

[0005] In one embodiment, the clamping assembly includes a main clamp, a movable clamp and a first locking piece, the movable clamp is slidably disposed on the main clamp, the first locking piece is disposed on the main clamp and can lock the movable clamp, and the main clamp and the movable clamp respectively clamp two sides of the circuit breaker.

[0006] In one embodiment, the clamping assembly further comprises a second locking member threadedly connected to the movable clamp, and the second locking member can pass through the movable clamp and abut against one side of the circuit breaker.

[0007] In one embodiment, a first waist-shaped hole is formed on the insulating panel, a first fixing hole is formed on the main clamp, and the insulating panel is fixed to the main clamp by a first fastener passing through the first waist-shaped hole and fixed in the first fixing hole.

[0008] In one embodiment, a second waist-shaped hole is formed on the insulating panel, a second fixing hole is formed on the grounding assembly, and the grounding assembly is fixed to the insulating panel by a second fastener passing through the second waist-shaped hole and fixed in the second fixing hole.

[0009] In one embodiment, the grounding assembly includes a guide rail, a movable block and a connecting piece, the movable block is slidably arranged on the guide rail, a third waist-shaped hole is provided on the guide rail, and the connecting piece passes through the movable block and the third waist-shaped hole and can be connected to the circuit breaker.

[0010] In one embodiment, the cross section of the movable block is in a convex shape, and a sliding groove for the movable block to be inserted into is provided on the guide rail.

[0011] In one embodiment, the grounding assembly further includes a spacer block, the spacer block is disposed in the slide groove, and the second fastener passes through the spacer block.

[0012] In one embodiment, the grounding assembly further includes a third fastener, and the guide rail is provided with a third fixing hole for installing the third fastener, and the third fastener is used to fix the grounding wire on the guide rail.

[0013] In one embodiment, the third fixing hole is close to an end of the guide rail.

[0014] Compared with the prior art, the utility model has the advantage that the clamping assembly can be flexibly selected to be fixed at a position on the circuit breaker, so that the handle of the circuit breaker can pass through the locking hole provided on the insulating panel to lock the handle and effectively avoid the wrong closing operation. The grounding assembly connected to the insulating panel can realize the grounding of the circuit breaker, further ensuring the safety of personnel during maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0016] Figure 1 It is a structural schematic diagram of a circuit breaker locking device in an embodiment of the utility model;

[0017] Figure 2 yes Figure 1 Exploded diagram of

[0018] Figure 3 is a top view of the clamping assembly in an embodiment of the utility model;

[0019] Figure 4 It is a side view of the guide rail in the embodiment of the utility model;

[0020] Figure 5 It is a side view of the movable block in the embodiment of the utility model.

[0021] Reference numerals:

[0022] 1. Clamping assembly; 11. Main clamp; 111. First fixing hole; 12. Movable clamp; 13. First locking piece; 14. Second locking piece; 15. First fastener; 2. Insulating panel; 21. Locking hole; 22. First waist-shaped hole; 23. Second waist-shaped hole; 3. Grounding assembly; 31. Guide rail; 311. Second fixing hole; 312. Third waist-shaped hole; 313. Slide groove; 314. Third fixing hole; 32. Movable block; 33. Connector; 34. Second fastener; 35. Pad; 36. Third fastener. DETAILED DESCRIPTION

[0023] The utility model will be further described below in conjunction with the accompanying drawings.

[0024] like Figure 1 and Figure 2 As shown, the circuit breaker locking device of this embodiment includes a clamping assembly 1, an insulating panel 2 and a grounding assembly 3. The clamping assembly 1 can be fixed on a circuit breaker (not shown in the figure), the insulating panel 2 is detachably connected to the clamping assembly 1, a locking hole 21 for the handle of the circuit breaker to pass through is provided on the insulating panel 2, and the grounding assembly 3 is detachably connected to the insulating panel 2.

[0025] The clamping assembly 1 can be flexibly fixed in a position on the circuit breaker so that the handle of the circuit breaker can pass through the locking hole 21 provided on the insulating panel 2 to lock the handle and effectively avoid the wrong closing operation. The grounding assembly 3 connected to the insulating panel 2 can realize the grounding of the circuit breaker, further ensuring the safety of personnel during maintenance operations.

[0026] Furthermore, the clamping assembly 1 includes a main clamp 11, a movable clamp 12 and a first locking member 13. The movable clamp 12 is slidably arranged on the main clamp 11. The first locking member 13 is arranged on the main clamp 11 and can lock the movable clamp 12. The main clamp 11 and the movable clamp 12 clamp the two sides of the circuit breaker respectively. One end of the movable clamp 12 is inserted into the inside of the main clamp 11. The movable clamp 12 can slide on the main clamp 11. After the position of the movable clamp 12 is adjusted according to the size of the circuit breaker, the movable clamp 12 can be fixed on the main clamp 11 by screwing the first locking member 13, so that the main clamp 11 and the movable clamp 12 clamp the two sides of the circuit breaker respectively, thereby fixing the clamping assembly 1.

[0027] like Figure 2 and Figure 3As shown, the clamping assembly 1 also includes a second locking member 14 threadedly connected to the movable clamp 12, and the second locking member 14 can pass through the movable clamp 12 and abut against one side of the circuit breaker. By clamping the two sides of the circuit breaker with the main clamp 11 and the movable clamp 12 respectively, the clamping assembly 1 can be fixed on the circuit breaker, but it is not very firm. By setting the second locking member 14 and screwing the second locking member 14, it can pass through the movable clamp 12 and abut against one side of the circuit breaker, thereby enhancing the clamping force of the clamping assembly 1 on the circuit breaker, so that the clamping assembly 1 is not easy to be separated from the circuit breaker.

[0028] like Figure 2 As shown, the insulating panel 2 is provided with a first waist-shaped hole 22, the main clamp 11 is provided with a first fixing hole 111, and the insulating panel 2 is fixed to the main clamp 11 by a first fastener 15 that passes through the first waist-shaped hole 22 and is fixed in the first fixing hole 111. The first fixing hole 111 is a threaded hole, and the first fastener 15 can be screwed and fixed in the first fixing hole 111, and fix the insulating panel 2 to the clamping assembly 1. Since the insulating panel 2 is provided with the first waist-shaped hole 22, the insulating panel 2 can be adjusted according to the position of the handle of the circuit breaker to ensure that the handle of the circuit breaker can pass through the locking hole 21. There are two first fasteners 15, so that the insulating panel 2 can be stably fixed on the clamping assembly 1 and is not prone to displacement or shaking.

[0029] like Figure 2 As shown, the insulating panel 2 is provided with a second waist-shaped hole 23, the grounding assembly 3 is provided with a second fixing hole 311, and the grounding assembly 3 is fixed to the insulating panel 2 by a second fastener 34 passing through the second waist-shaped hole 23 and fixed in the second fixing hole 311. The second waist-shaped hole 23 provided on the insulating panel 2 enables the grounding assembly 3 to adjust its fixing position, so that the grounding assembly 3 can be aligned with the screw position of the circuit breaker outlet, which facilitates the connection of the grounding assembly 3 with the circuit breaker.

[0030] Specifically, the grounding assembly 3 includes a guide rail 31, a movable block 32 and a connector 33, all of which are conductors. The movable block 32 is slidably disposed on the guide rail 31, and a third waist-shaped hole 312 is provided on the guide rail 31. The connector 33 passes through the movable block 32 and the third waist-shaped hole 312 and can be connected to the screw of the circuit breaker outlet. The movable block 32 can move on the guide rail 31, so that the connector 33 can be aligned with the screw of the circuit breaker outlet and connected thereto, thereby adapting to circuit breakers of different sizes, so that the grounding assembly 3 is connected to the inside of the circuit breaker to achieve grounding.

[0031] like Figure 3 and Figure 4 As shown, the cross section of the movable block 32 is convex-shaped, and a slide groove 313 is provided on the guide rail 31 for the movable block 32 to be inserted into, so that the movable block 32 will not fall off the guide rail 31, and the reliability is high.

[0032] like Figure 2 As shown, the grounding assembly 3 further includes a pad 35, which is disposed in the slide groove 313, and the second fastener 34 passes through the pad 35. Due to the existence of the slide groove 313, when the second fastener 34 is connected to the second fixing hole 311, the second fastener 34 will apply a certain pressure to the insulating panel 2, making the insulating panel 2 easily deformed. By providing the pad 35, the pad 35 can support the insulating panel 2, thereby preventing the insulating panel 2 from being damaged due to a large degree of deformation.

[0033] like Figure 2 As shown, the grounding assembly 3 further includes a third fastener 36. The guide rail 31 is provided with a third fixing hole 314 for installing the third fastener 36. The third fastener 36 is used to fix the grounding wire (not shown in the figure) on the guide rail 31. The third fixing hole 314 is a threaded hole, so that the third fastener 36 can clamp the grounding wire and is not easy to fall off from the guide rail 31.

[0034] Furthermore, the third fixing hole 314 is close to the end of the guide rail 31 , and the movable block 32 , the second fastener 34 and the cushion block 35 will not hinder the connection of the ground wire, thereby facilitating the connection of the ground wire to the guide rail 31 .

[0035] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A circuit breaker locking device, characterized in that: It comprises a clamping assembly, an insulating panel and a grounding assembly. The clamping assembly can be fixed on the circuit breaker, the insulating panel is detachably connected to the clamping assembly, the insulating panel is provided with a locking hole for the handle of the circuit breaker to pass through, and the grounding assembly is detachably connected to the insulating panel.

2. The circuit breaker locking device according to claim 1, characterized in that: The clamping assembly includes a main clamp, a movable clamp and a first locking piece. The movable clamp is slidably arranged on the main clamp. The first locking piece is arranged on the main clamp and can lock the movable clamp. The main clamp and the movable clamp respectively clamp two sides of the circuit breaker.

3. The circuit breaker locking device according to claim 2, characterized in that: The clamping assembly further includes a second locking member threadedly connected to the movable clamp, and the second locking member can pass through the movable clamp and abut against one side of the circuit breaker.

4. The circuit breaker locking device according to claim 2, characterized in that: The insulating panel is provided with a first waist-shaped hole, the main clamp is provided with a first fixing hole, and the insulating panel is fixed to the main clamp by a first fastener passing through the first waist-shaped hole and fixed in the first fixing hole.

5. The circuit breaker locking device according to any one of claims 1 to 4, characterized in that: The insulating panel is provided with a second waist-shaped hole, the grounding component is provided with a second fixing hole, and the grounding component is fixed to the insulating panel by a second fastener passing through the second waist-shaped hole and fixed in the second fixing hole.

6. The circuit breaker locking device according to claim 5, characterized in that: The grounding assembly includes a guide rail, a movable block and a connecting piece. The movable block is slidably arranged on the guide rail. A third waist-shaped hole is arranged on the guide rail. The connecting piece passes through the movable block and the third waist-shaped hole and can be connected to the circuit breaker.

7. The circuit breaker locking device according to claim 6, characterized in that: The cross section of the movable block is in a convex shape, and a sliding groove for the movable block to be inserted is provided on the guide rail.

8. The circuit breaker locking device according to claim 7, characterized in that: The grounding assembly further includes a pad, which is disposed in the slide groove, and the second fastener passes through the pad.

9. The circuit breaker locking device according to claim 6, characterized in that: The grounding assembly also includes a third fastener. The guide rail is provided with a third fixing hole for installing the third fastener. The third fastener is used to fix the grounding wire on the guide rail.

10. The circuit breaker locking device according to claim 9, characterized in that: The third fixing hole is close to the end of the guide rail.

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