Large-current high-breaking handcart type switch locking device

Abstract

The utility model discloses a heavy-current high-breaking handcart type switch locking device, which relates to the technical field of handcart type switches, and comprises a cabinet body and a handcart chamber arranged on the cabinet body, a circuit breaker is arranged in the handcart chamber, a handcart device is arranged at the bottom of the circuit breaker, and the handcart device is arranged in the handcart chamber. A program lock is installed outside the circuit breaker in a clamped mode, a key is connected to the outside of the program lock, and a carrying rope is connected to the key. The mounting pieces are symmetrically arranged on the circuit breaker up and down, two clamping blocks are symmetrically mounted on each mounting piece, and connecting springs are mounted on the opposite sides, away from each other, of the two mounting pieces respectively. According to the program lock, a worker can conveniently carry a key, the key is prevented from being lost due to random placement, the program lock can be conveniently mounted and dismounted, and therefore the program lock can be conveniently maintained and replaced, the structure is simple, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of trolley switches, in particular to a large-current and high-breaking trolley switch locking device. Background Art

[0002] 12kV high current high breaking trolley switch is a key switchgear used in medium voltage power system, used to switch and isolate the circuit. It is a kind of trolley switch of circuit breaker, with a rated voltage of 12kV, suitable for medium voltage power system, capable of withstanding and operating relatively high voltage and withstanding and controlling large current.

[0003] Circuit breaker trolley switch is a manually operated circuit breaker switch, which closes the switch by manually pushing and pulling the trolley. Circuit breaker trolley switch usually consists of a handle, a rod, a gear mechanism and a connecting device. The operator operates the gear mechanism through the handle or rod to pull out or push the circuit breaker to complete the opening and closing operation of the circuit breaker. Circuit breaker trolley switch is usually equipped with a locking device to prevent misoperation or unauthorized personnel from operating, thereby ensuring the safety of circuits and equipment.

[0004] In the prior art, the locking device is a mechanical program lock. When locked, the key needs to be removed and used for the next circuit breaker. The key is not large in size, and the staff can easily place it at will, which may lead to loss. Therefore, we propose a large-current high-break trolley switch locking device to solve the above problem. Utility Model Content

[0005] The utility model provides a large-current high-break trolley switch locking device, which is convenient for staff to carry keys with them to avoid loss caused by random placement, and is convenient for maintenance and replacement of program locks. It has the advantages of simple structure and convenient operation, so as to solve the problem that the locking device is a mechanical program lock. When locked, the key needs to be removed and used for the next circuit breaker. The key is not large in size and is easily placed randomly by staff, resulting in loss.

[0006] In order to facilitate the carrying of keys and prevent them from being lost, the utility model provides the following technical solutions: a large-current high-break trolley switch locking device, comprising a cabinet body and a trolley chamber opened on the cabinet body, a circuit breaker is placed in the trolley chamber, a trolley device is installed at the bottom of the circuit breaker, a program lock is installed on the outside of the circuit breaker, a lock core is provided through the program lock, a key is connected to the outside of the program lock, and a carrying rope is connected to the key; a mounting piece is symmetrically arranged on the circuit breaker from top to bottom, two card blocks are symmetrically installed on the mounting piece, the card blocks are clamped on the back of the program lock, and connecting springs are respectively installed on the relatively far sides of the two mounting pieces.

[0007] As an optimal technical solution of the utility model, an instrument room is arranged above the trolley room on the cabinet, a cable room is arranged in the cabinet, a main busbar room is arranged at the back of the instrument room in the cabinet, a cabinet top small busbar room is arranged on the top of the cabinet, and the trolley room is connected to the trolley room door.

[0008] As a preferred technical solution of the utility model, a connecting piece is installed on the inner wall of the trolley room by screws, and a plug hole matched with the lock core is opened on the connecting piece.

[0009] As a preferred technical solution of the utility model, the mounting member includes a connecting plate, the connecting plate is arranged on the inner side of the circuit breaker, a convex plate is installed at one end of the connecting plate, the card block is installed on the connecting plate, and the card block and the convex plate both extend to the outside of the circuit breaker.

[0010] As a preferred technical solution of the utility model, the card block is connected with a card slot, and the card slot is arranged on the back of the program lock.

[0011] As a preferred technical solution of the utility model, mounting plates are respectively arranged above and below the connecting plate, guide rods are installed between the mounting plates, and the connecting spring is sleeved outside the guide rods.

[0012] As a preferred technical solution of the utility model, a convex ring is arranged outside the two convex plates, a cover plate is hinged outside the convex ring, screws are installed between the cover plate and the convex ring, and the convex ring is installed outside the circuit breaker.

[0013] Compared with the prior art, the utility model provides a large current high-break handcart switch locking device, which has the following beneficial effects:

[0014] The large-current high-break handcart type switch locking device is used in conjunction with a set key and a carrying rope, which is convenient for staff to carry the key with them to avoid loss caused by random placement. The set mounting parts, card blocks, connecting springs, guide rods, mounting plates, convex rings and cover plates are used in conjunction with each other to facilitate installation and disassembly of the program lock, thereby facilitating maintenance and replacement thereof. The structure is simple and only requires the removal of one screw, which is convenient for staff to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the key and the carrying rope of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the connecting plate and the connecting spring of the utility model;

[0018] Figure 4 For this utility model Figure 1 Schematic diagram of the structure at A in the middle.

[0019] In the figure: 1. cabinet; 2. instrument room; 3. trolley room; 4. cable room; 5. main busbar room; 6. small busbar room on top of cabinet; 7. trolley room door; 8. circuit breaker; 9. trolley device; 10. key; 11. lock core; 12. connector; 13. socket; 14. carrying rope; 15. card block; 16. card slot; 17. connecting plate; 18. convex plate; 19. guide rod; 20. connecting spring; 21. mounting plate; 22. convex ring; 23. cover plate; 24. program lock. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 4 The utility model discloses a large current high-break trolley switch locking device, comprising a cabinet 1, and a trolley chamber 3 opened on the cabinet 1, a circuit breaker 8 is placed in the trolley chamber 3, a trolley device 9 is installed at the bottom of the circuit breaker 8, a program lock 24 is installed on the outside of the circuit breaker 8, a lock core 11 is provided on the program lock 24, a key 10 is connected to the outside of the program lock 24, and a carrying rope 14 is connected to the key 10. When moving, the staff can tie the carrying rope 14 on the wrist or hang it on the clothes, which is convenient to carry and avoids easy loss; the upper and lower symmetrical arrangements The mounting piece is placed on the circuit breaker 8, and two blocks 15 are symmetrically installed on the mounting piece. The block 15 is stuck on the back of the program lock 24 and is used to limit the installation of the program lock 24. The two mounting pieces are respectively installed with connecting springs 20 on the relatively far side. A connecting piece 12 is installed on the inner wall of the trolley chamber 3 by screws. The connecting piece 12 is provided with a socket 13 adapted to the lock core 11. The key 10 is rotated to move the lock core 11 to the side away from the connecting piece 12. The lock core 11 is disconnected from the socket 13, and the circuit breaker 8 can be unlocked and moved.

[0022] Specifically, an instrument room 2 is arranged above the trolley room 3 on the cabinet 1, a cable room 4 is arranged in the cabinet 1, a main busbar room 5 is arranged at the back of the instrument room 2 in the cabinet 1, a cabinet top small busbar room 6 is arranged on the top of the cabinet 1, and the trolley room 3 is connected to the trolley room cabinet door 7.

[0023] In this embodiment, the instrument room 2, cable room 4, main bus room 5 and small bus room 6 on the cabinet body 1 are respectively used to install monitoring instruments, connect cables, access the main bus and distribute electric energy. They each play the role of monitoring, connecting, transmitting and distributing electric energy, and are important components of the electrical system.

[0024] Specifically, the mounting part includes a connecting plate 17, which is arranged on the inner side of the circuit breaker 8. A convex plate 18 is installed at one end of the connecting plate 17. The card block 15 is installed on the connecting plate 17. The card block 15 and the convex plate 18 both extend to the outside of the circuit breaker 8. The card block 15 is connected to a card slot 16, and the card slot 16 is opened on the back of the program lock 24. Mounting plates 21 are respectively arranged above and below the connecting plate 17. Guide rods 19 are installed between the mounting plates 21. The connecting spring 20 is sleeved on the outside of the guide rod 19. Convex rings 22 are arranged on the outside of the two convex plates 18. A cover plate 23 is hinged on the outside of the convex ring 22. Screws are installed between the cover plate 23 and the convex ring 22. The convex ring 22 is installed on the outside of the circuit breaker 8.

[0025] In this embodiment, the connecting plate 17, the block 15 and the convex plate 18 are an integrated structure, the mounting plate 21 is welded to the circuit breaker 8, the upper connecting spring 20 is installed between the upper connecting plate 17 and the mounting plate 21 above it, and the lower connecting spring 20 is installed between the lower connecting plate 17 and the mounting plate 21 below it. A screw is installed between the cover plate 23 and the convex ring 22. When it is necessary to disassemble the program lock 24, a screw on the cover plate 23 is removed, the cover plate 23 is opened, and the two convex plates 18 in the convex ring 22 are pressed toward one side relatively close to each other, so that the two connecting plates 17 move toward one side relatively close to each other, the connecting spring 20 is stretched, the two upper blocks 15 move downward, and the two lower blocks 15 move upward, and the connection with the card slot 16 is released, so that the program lock 24 can be removed outward. The structure is simple, and only one screw needs to be removed, which is convenient for the staff to operate.

[0026] The working principle and use process of the utility model are as follows: when in use, the carrying rope 14 is tied to the wrist or hung on the clothes for carrying. When it is necessary to unlock, the key 10 is taken out and inserted into the program lock 24, and the key 10 is rotated to make the lock core 11 move to the side away from the connecting piece 12, and the lock core 11 is disconnected from the socket 13, so that the lock of the circuit breaker 8 can be released and it can be moved. After the operation is completed, the key 10 is rotated in the opposite direction so that the lock core 11 is inserted into the socket 13, and the circuit breaker 8 can be locked and limited to prevent it from being locked. Move, take off the key 10, tie the carrying rope 14 to the wrist again, or hang it on the clothes to carry. When the program lock 24 needs to be disassembled for maintenance or replacement, remove a screw on the cover 23, open the cover 23, press the two convex plates 18 in the convex ring 22 to one side relatively close to each other, so that the two connecting plates 17 move to one side relatively close to each other, the connecting spring 20 is stretched, the two upper card blocks 15 move down, and the two lower card blocks 15 move up, release the card connection with the card slot 16, and then the program lock 24 can be taken out.

[0027] In summary, the large-current high-break trolley-type switch locking device, through the provided key 10 and the carrying rope 14, is convenient for the staff to carry the key 10 with them to avoid loss due to random placement, and through the provided mounting parts, block 15, connecting spring 20, guide rod 19, mounting plate 21, convex ring 22 and cover plate 23, it is convenient to install and disassemble the program lock 24, thereby facilitating its maintenance and replacement, and the structure is simple, only one screw needs to be removed, which is convenient for the staff to operate.

[0028] It should be noted that, in this article, terms such as "comprises", "includes" 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 includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more 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.

[0029] 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 high-current high-break trolley switch locking device, comprising a cabinet (1), characterized in that: Also includes: A trolley chamber (3) is provided on the cabinet (1), a circuit breaker (8) is placed in the trolley chamber (3), a trolley device (9) is installed at the bottom of the circuit breaker (8), a program lock (24) is installed on the outside of the circuit breaker (8), a lock core (11) is provided through the program lock (24), a key (10) is connected to the outside of the program lock (24), and a carrying rope (14) is connected to the key (10); A mounting piece is symmetrically arranged on the circuit breaker (8) up and down, and two clamping blocks (15) are symmetrically mounted on the mounting piece. The clamping blocks (15) are clamped on the back of the program lock (24), and connecting springs (20) are respectively mounted on the two mounting pieces at opposite sides.

2. A high current high breaking handcart type switch locking device according to claim 1, characterized in that: An instrument room (2) is arranged above the trolley room (3) on the cabinet (1), a cable room (4) is arranged in the cabinet (1), a main bus room (5) is arranged at the back of the instrument room (2) in the cabinet (1), a cabinet top small bus room (6) is arranged at the top of the cabinet (1), and the trolley room (3) is connected to a trolley room cabinet door (7).

3. A high current high breaking handcart type switch locking device according to claim 1, characterized in that: A connecting piece (12) is mounted on the inner wall of the trolley chamber (3) by means of screws, and a plug hole (13) adapted to the lock core (11) is provided on the connecting piece (12).

4. A high current high breaking handcart type switch locking device according to claim 1, characterized in that: The mounting member comprises a connecting plate (17), the connecting plate (17) being arranged inside the circuit breaker (8), a convex plate (18) being mounted on one end of the connecting plate (17), the clamping block (15) being mounted on the connecting plate (17), and the clamping block (15) and the convex plate (18) both extending to the outside of the circuit breaker (8).

5. A high current high breaking handcart type switch locking device according to claim 4, characterized in that: The card block (15) is connected to a card slot (16), and the card slot (16) is provided on the back of the program lock (24).

6. A high current high breaking handcart type switch locking device according to claim 5, characterized in that: Mounting plates (21) are respectively arranged above and below the connecting plate (17), a guide rod (19) is installed between the mounting plates (21), and the connecting spring (20) is sleeved outside the guide rod (19).

7. A high current high breaking handcart type switch locking device according to claim 6, characterized in that: A convex ring (22) is arranged outside the two convex plates (18), a cover plate (23) is hinged outside the convex ring (22), screws are installed between the cover plate (23) and the convex ring (22), and the convex ring (22) is installed outside the circuit breaker (8).

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