Switching device for operation of high-voltage cabinet circuit breaker

Abstract

The utility model discloses a switching device for the operation of a high-voltage cabinet breaker, and the switching device comprises a sealing plate which is disposed on a lower door of a cabinet body, and is provided with a through hole; the baffle is arranged on the sealing plate in a sliding manner and is used for shielding or keeping away from the through hole; the auxiliary switch is arranged on the sealing plate and is connected in series with the circuit breaker; and the driving device is used for driving a button on the auxiliary switch to act when working so as to disconnect the circuit of the circuit breaker, and is used for blocking the baffle plate when not working so that the baffle plate cannot move to shield the through hole. According to the utility model, the circuit breaker cannot be operated electrically and manually at the same time, so that the personal safety and the equipment safety are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage cabinets, in particular to a switching device for operating a circuit breaker of a high-voltage cabinet. Background Art

[0002] The original KYN61 cabinet has no distinction between manual and electric operation holes in the front lower door circuit breaker position. When the circuit breaker is in manual operation, it can still be operated electrically, and vice versa. In this case, it will cause harm to personal safety and accidents, which is a deficiency. Utility Model Content

[0003] The purpose of the utility model is to solve the above technical problems and provide a switching device for operating a high-voltage cabinet circuit breaker.

[0004] The technical solution of the utility model is: a switching device for operating a high-voltage cabinet circuit breaker, comprising:

[0005] A sealing plate is arranged on the lower door of the cabinet, and a through hole is arranged on the sealing plate;

[0006] A baffle, slidably disposed on the sealing plate to shield or keep away from the through hole;

[0007] An auxiliary switch is arranged on the cover plate and connected in series with the circuit breaker;

[0008] The driving device is used to drive the button on the auxiliary switch to operate so as to disconnect the circuit breaker when in operation, and is used to block the baffle so that it cannot move and shield the through hole when not in operation.

[0009] Preferably, a sliding groove is provided on the sealing plate wall, and the bottom of the baffle is slidably connected to the sliding groove.

[0010] Preferably, the sealing plate and the top of the baffle are both L-shaped.

[0011] Preferably, the driving device includes a locking electromagnet and a push plate, and the locking electromagnet is arranged on the sealing plate to drive the push plate to move and then push the button on the auxiliary switch to disconnect the circuit breaker.

[0012] Preferably, one end of the push plate is rotatably connected to the auxiliary switch.

[0013] The beneficial effect of the utility model is that in the utility model, the circuit breaker cannot be operated electrically and manually at the same time, thereby ensuring personal safety and equipment safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the overall structure of the preferred embodiment of the utility model;

[0015] Figure 2 It is a left view of the overall structure of the preferred embodiment of the utility model;

[0016] Figure 3 It is a partial structural stereogram of a preferred embodiment of the utility model.

[0017] Reference numerals: sealing plate 10 , through hole 101 , slide groove 102 , baffle plate 2 , auxiliary switch 3 , locking electromagnet 4 , push plate 5 . DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Reference Figures 1 to 3 , a switching device for operating a high-voltage cabinet circuit breaker, comprising:

[0020] A sealing plate 10 is provided on the lower door of the cabinet, and a through hole 101 is provided on the sealing plate 10;

[0021] The baffle plate 2 is slidably disposed on the sealing plate 10 to shield or keep away from the through hole 101;

[0022] Auxiliary switch 3, arranged on cover plate 10 and connected in series with circuit breaker;

[0023] The driving device is used to drive the button on the auxiliary switch 3 to disconnect the circuit of the circuit breaker when it is working, and is used to block the baffle 2 so that it cannot move to block the through hole 101 when it is not working. In the utility model, when the circuit breaker is electrically operated, the driving device does not work, the baffle 2 cannot move, and one end of it blocks the through hole 101, and the handle cannot pass through the through hole 101 to extend into the operating hole of the circuit breaker. The auxiliary switch 3 is connected to the circuit breaker connection circuit, and can only be operated electrically but not manually, ensuring personal safety and equipment safety. When the circuit breaker is manually operated, the driving device works to drive the button on the auxiliary switch 3 to disconnect the normally closed point on the auxiliary switch 3, and the circuit breaker circuit is disconnected. At the same time, the driving device does not block the baffle 2, and the baffle 2 moves one end away from the through hole 101. The handle passes through the through hole 101 and extends into the operating hole of the circuit breaker. The circuit breaker cannot be operated electrically but can only be operated manually, ensuring personal safety and equipment safety.

[0024] As a preferred embodiment of the utility model, it may also have the following additional technical features:

[0025] In this embodiment, a sliding groove 102 is provided on the wall of the sealing plate 10, and the bottom of the baffle plate 2 is slidably connected to the sliding groove 102. Specifically, one end of the sliding groove 102 is connected to the through hole 101.

[0026] In this embodiment, the tops of the sealing plate 10 and the baffle plate 2 are both L-shaped.

[0027] In this embodiment, the driving device includes a locking electromagnet 4 and a push plate 5. The locking electromagnet 4 is arranged on the sealing plate 10 to drive the push plate 5 to move and then push the button on the auxiliary switch 3 to disconnect the circuit of the circuit breaker. During electric operation, the locking electromagnet 4 is not energized, and the movable iron core on the locking electromagnet 4 does not move upward. The bottom of the iron core blocks the baffle 2 so that it cannot move, and the push plate 5 does not contact the button on the auxiliary switch 3. During manual operation, the locking electromagnet 4 is energized and the movable iron core moves upward to drive the push plate 5 to move, and then drives the button on the auxiliary switch 3 to move, so that the normally closed point on the auxiliary switch 3 is disconnected, and the baffle 2 moves one end away from the through hole 101. The handle passes through the through hole 101 and extends into the operating hole of the circuit breaker, and can only be operated manually.

[0028] In this embodiment, one end of the push plate 5 is rotatably connected to the auxiliary switch 3, and a rotating rod is provided on both sides of one end of the push plate 5, and the rotating rod is rotatably connected to the wall of the auxiliary switch 3. When manually operated, the locking electromagnet 4 is energized, and the movable iron core moves upward to drive the push plate 5 to rotate. The push plate 5 presses the button on the auxiliary switch 3, and the normally closed point on the auxiliary switch 3 is disconnected. After the locking electromagnet 4 is powered off, the iron core returns to its original position, and the push plate 5 returns to its original position due to gravity. Specifically, the push plate 5 is an iron plate.

[0029] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A switching device for operating a high-voltage cabinet circuit breaker, characterized in that: include: A sealing plate (10) is arranged on the lower door of the cabinet, and a through hole (101) is provided on the sealing plate (10); A baffle (2) slidably disposed on the sealing plate (10) and used for shielding or keeping away from the through hole (101); An auxiliary switch (3) is arranged on the cover plate (10) and is connected in series with the circuit breaker; The driving device is used to drive the button on the auxiliary switch (3) to operate when in operation so as to disconnect the circuit of the circuit breaker, and is used to block the baffle (2) so that it cannot move and shield the through hole (101) when not in operation.

2. A switching device for operating a high-voltage cabinet circuit breaker according to claim 1, characterized in that: A sliding groove (102) is provided on the wall of the sealing plate (10), and the bottom of the baffle plate (2) is slidably connected to the sliding groove (102).

3. A switching device for operating a high-voltage cabinet circuit breaker according to claim 1, characterized in that: The tops of the sealing plate (10) and the baffle plate (2) are both L-shaped.

4. A switching device for operating a high-voltage cabinet circuit breaker according to claim 1, characterized in that: The driving device comprises a locking electromagnet (4) and a push plate (5); the locking electromagnet (4) is arranged on the sealing plate (10) and is used to drive the push plate (5) to move and then push the button on the auxiliary switch (3) to disconnect the circuit of the circuit breaker.

5. A switching device for operating a high-voltage cabinet circuit breaker according to claim 4, characterized in that: One end of the push plate (5) is rotatably connected to the auxiliary switch (3).

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