CN217655832U

CN217655832U - Circuit breaker interlocking device for general type cabinet external operation

Info

Publication number: CN217655832U
Application number: CN202221600844.6U
Authority: CN
Inventors: 潘威; 冯钦玉; 谢静; 梁玉斌; 寇磊
Original assignee: Nanjing Daqo Electric Co Ltd
Current assignee: Nanjing Daqo Electric Co Ltd
Priority date: 2022-06-24
Filing date: 2022-06-24
Publication date: 2022-10-25
Anticipated expiration: 2032-06-24

Abstract

The utility model relates to a circuit breaker interlock is used in operation outside general type cabinet belongs to electrical equipment technical field. The utility model discloses a structure includes the door plant, the door plant is equipped with the interlocker in the face of the one side in the cabinet, the interlocker is connected with the circuit breaker of settling in the cabinet and is formed link gear. The utility model has the advantages of simple structure, convenient to use, safe and reliable. The locking device can be operated outside the cabinet, only 1 breaker is switched on in two breakers, and the purpose of mutual locking is achieved.

Description

Circuit breaker interlocking device for general type cabinet external operation

Technical Field

The utility model relates to a circuit breaker interlock is used in operation outside general type cabinet belongs to electrical equipment technical field.

Background

In modern life, the power can not be cut off, and the molded case circuit breaker is widely applied to a power distribution system. As a key safety protection device in an electrical system, the molded case circuit breaker has the functions of electric leakage, short circuit and overload delay protection, and also has the functions of isolation, current limiting, breaking and the like. The current low-voltage power distribution system has higher and higher safety requirements on the circuit breaker due to the criticality and the particularity of the molded case circuit breaker in the whole system, and the circuit breaker switch interlocking device capable of meeting the condition is also valued by various manufacturers, but the current electrical component production merchants (such as schneider, siemens and the like) have particularity on the mechanical interlocking device used by the circuit breaker, the structure of the mechanical interlocking device is personalized design aiming at the products of the company, the mechanical interlocking device is not generally suitable for various circuit breakers, the mechanical interlocking device is very inconvenient for the use of customers, and the purchase cost is also high; meanwhile, because the circuit breaker product and the interlocking device provided by the merchant are of an integrated structure, when an operator needs to cut off a power supply, the electrical cabinet door provided with the molded case circuit breaker needs to be opened, manual operation can be carried out, and potential safety hazards exist in the process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: aiming at the problems existing in the prior art that the prior art can not be used universally and

the interlocking device has the advantages of being capable of solving the problem of potential safety hazards, and meanwhile, having universality and safety.

In order to achieve the above purpose, the utility model comprises the following technical scheme: the utility model provides a general type is circuit breaker interlock for cabinet external operation, includes the door plant, the door plant is equipped with the interlocker facing the one side in the cabinet, the interlocker is connected with the circuit breaker of settling in the cabinet and is formed link gear. The structure can realize the outside-cabinet operation interlocking aiming at any connecting rod operation type molded case circuit breaker.

Furthermore, the interlocking device comprises a lock box, a limiting groove is formed in the lock box, and a limiting component is arranged in the limiting groove. The opening and closing of the circuit breaker are limited through the limiting assembly.

The lock box is welded and fixed with the door plate, a first limiting groove is formed in the connecting surface of the lock box and the door plate, and a second limiting groove is formed in the bottom surface of the lock box.

The circuit breaker divide into first circuit breaker and second circuit breaker, and parallel arrangement is in the cabinet, the switch department of circuit breaker is equipped with link assembly, the terminal spacing piece that cup joints of link assembly's connecting rod.

The limiting component consists of a sliding rod which penetrates through the second limiting groove to be in contact with the limiting support piece, a cross limiting rod which is positioned on the second limiting groove and connected with the sliding rod, and a shifting rod which is positioned on the upper part of the sliding rod and penetrates through the first limiting groove.

The length of the limiting groove is matched with the distance between the two breaker connecting rods.

The sliding rod is provided with two limit positions, when the sliding rod is located at a first limit position, the sliding rod is in contact with a limit support piece on a connecting rod of the first circuit breaker, the limit support piece limits an operating handle of the first circuit breaker to rotate, and the first circuit breaker cannot be switched on; when the circuit breaker is located at the second limit position, the sliding rod is in contact with the limit support piece on the connecting rod of the second circuit breaker, the limit support piece limits the operation handle of the second circuit breaker to rotate, and the second circuit breaker cannot be switched on.

The utility model has the advantages of simple structure, convenient to use, safe and reliable. The locking device can be operated outside the cabinet, only 1 breaker is switched on in the two breakers, and the purpose of mutual locking is realized.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a schematic surface structure diagram of the cabinet door in fig. 1.

Detailed Description

Example one

The structure of the embodiment is as shown in fig. 1-2, and the interlocking device of the general circuit breaker for the external operation of the cabinet comprises a door plate 3, wherein an interlocking device is arranged on one surface of the door plate 3 facing the inside of the cabinet, and the interlocking device is connected with the circuit breaker arranged in the cabinet to form a linkage mechanism. The interlocker comprises a lock box 4, a limiting groove is formed in the lock box 4, and a limiting component is arranged in the limiting groove. The opening and closing of the circuit breaker are limited through the limiting assembly. The lock box 4 is welded and fixed with the door plate 3, the connection surface of the lock box 4 and the door plate 3 is provided with a first limit groove 9, and the bottom surface of the lock box 4 is provided with a second limit groove 10. The circuit breaker divide into first circuit breaker 1 and second circuit breaker 2, arranges in the cabinet side by side, and the switch department of circuit breaker is equipped with link assembly, and 11 terminal spacing pieces 8 that cup joint of link assembly's connecting rod. The limiting component is composed of a sliding rod 6 which penetrates through a second limiting groove 10 to be in contact with a limiting support 8, a limiting rod 7 which is positioned on the second limiting groove 10 and connected with the sliding rod 6 to form a cross shape, and a deflector rod 5 which is positioned on the upper portion of the sliding rod 6 and penetrates through a first limiting groove 9. The shift lever 5 can slide freely in the first limit groove 9. The shifting rod 5 is shifted to drive the sliding rod 6 and the limiting rod 7 to move, the bottom of the sliding rod 6 is in contact with the limiting support part 8, the limiting support part 8 is fixed on a connecting rod 11 extending out of the molded case circuit breaker, and the upper portion of the limiting support part 8 is in contact with the bottom of the sliding rod 6. The length of each limiting groove is matched with the distance between the two breaker connecting rods. The sliding rod 6 is provided with two limit positions, when the sliding rod is located at a first limit position, the sliding rod is contacted with a limit support piece on the connecting rod of the first circuit breaker, and the limit support piece limits a switch of the first circuit breaker to be located at a brake separating position; when the circuit breaker is located at the second limit position, the sliding rod is in contact with the limit support piece on the connecting rod of the second circuit breaker, and the limit support piece limits the switch of the second circuit breaker to be located at the switch-off position.

During the use, drive slide bar 6 through the driving lever 5 of stirring the inslot and remove, the bottom and the spacing 8 contacts of a slide bar 6, and spacing 8 is fixed on the connecting rod of circuit breaker, realizes with the circuit breaker co-rotation. When the driving lever is dialled circuit breaker 1 position department, because spacing branch 8's effect for circuit breaker 1's operating handle can't rotate, and circuit breaker 1 can't realize closing a floodgate, and in the same way, when the driving lever is dialled circuit breaker 2 position department, circuit breaker 2's operating handle can't rotate, and circuit breaker 2 can't realize closing a floodgate. Namely: only 1 of the two circuit breakers can be switched on, and the purpose of mutual locking is achieved.

The embodiment is a universal type circuit breaker interlocking device, and is suitable for circuit breakers of various current levels, including but not limited to Shanghai people RMM1-160, kaifen KFM2-100, weak NDM, KFM2-160/250/400/630 and the like.

In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent replacement or equivalent transformation fall within the protection scope required by the utility model.

Claims

1. The utility model provides a circuit breaker interlock is used in operation outside general type cabinet, includes the door plant, its characterized in that: and one surface of the door plate facing the inside of the cabinet is provided with an interlocking device, and the interlocking device is connected with a circuit breaker arranged in the cabinet to form a linkage mechanism.

2. The universal circuit breaker interlock for outside cabinet operations as set forth in claim 1, wherein: the interlocking device comprises a lock box, a limiting groove is formed in the lock box, and a limiting component is arranged in the limiting groove.

3. The universal off-cabinet-operation circuit breaker interlock device of claim 2, wherein: the lock box is welded and fixed with the door plate, a first limiting groove is formed in the connecting surface of the lock box and the door plate, and a second limiting groove is formed in the bottom surface of the lock box.

4. The universal circuit breaker interlock for outside cabinet operations as set forth in claim 1, wherein: the circuit breaker divide into first circuit breaker and second circuit breaker, and parallel arrangement is in the cabinet, the switch department of circuit breaker is equipped with link assembly, the terminal spacing piece that cup joints of link assembly's connecting rod.

5. The universal circuit breaker interlock for outside-cabinet operations as recited in claim 3, further comprising: the limiting assembly is composed of a sliding rod which penetrates through the second limiting groove to be in contact with the limiting support piece, a limiting rod which is positioned on the second limiting groove and connected with the sliding rod to form a cross shape, and a shifting lever which is positioned on the upper portion of the sliding rod and penetrates through the first limiting groove.

6. The universal off-cabinet-operation circuit breaker interlock device of claim 2, wherein: the length of the limiting groove is matched with the distance between the two breaker connecting rods.

7. The universal circuit breaker interlock for outside-cabinet operations as recited in claim 5, further comprising: the sliding rod is provided with two limit positions, when the sliding rod is located at a first limit position, the sliding rod is contacted with a limit support piece on the connecting rod of the first circuit breaker, and the limit support piece limits the rotation of an operating handle of the first circuit breaker; when the circuit breaker is located at the second limit position, the sliding rod is in contact with the limit support piece on the connecting rod of the second circuit breaker, and the limit support piece limits the operation handle of the second circuit breaker to rotate.