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CN-224233187-U - Low-voltage switch cabinet body

CN224233187UCN 224233187 UCN224233187 UCN 224233187UCN-224233187-U

Abstract

The utility model relates to a low-voltage switch cabinet body. The utility model aims to provide a low-voltage switch cabinet. The circuit breaker comprises a switch cabinet frame, a switch cabinet mounting beam, a circuit breaker positioning assembly and a circuit breaker, wherein a circuit breaker clamping groove is formed in the bottom of the circuit breaker, the circuit breaker positioning assembly comprises a circuit breaker bearing main board, a circuit breaker clamping board, a clamping board limiting assembly and a buffer spring, the circuit breaker clamping board comprises a clamping board U-shaped part, two ends of the clamping board U-shaped part are sequentially and vertically bent to form a clamping board attaching part and a clamping board clamping part, and clamping board limiting openings are formed in the left side and the right side of the clamping board U-shaped part. The circuit breaker has the advantages that the circuit breaker is connected without threads through the interaction of the clamping plate and the clamping plate limiting assembly of the circuit breaker, the connection is firm and reliable, the installation and the disassembly are more convenient, the later maintenance is convenient, the vibration-proof capacity of the circuit breaker after the circuit breaker is installed can be improved through the buffer spring, the vibration-proof effect is good, and the service life of the circuit breaker is effectively prolonged.

Inventors

  • JIN JIGUANG
  • CHEN BINBIN
  • CHEN TONGYI

Assignees

  • 华夏输配电设备有限公司

Dates

Publication Date
20260512
Application Date
20250526

Claims (5)

  1. 1. The low-voltage switch cabinet body is characterized by comprising a switch cabinet frame (1), switch cabinet mounting beams (2) transversely arranged in the switch cabinet frame (1), circuit breaker positioning components (3) longitudinally arranged on the two switch cabinet mounting beams (2), circuit breakers (4) arranged on the circuit breaker positioning components (3) at intervals from top to bottom in sequence, circuit breaker clamping grooves (6) are formed in the bottoms of the circuit breakers (4), the circuit breaker positioning components (3) comprise a circuit breaker supporting main board (7), circuit breaker clamping plates (8) and clamping plate limiting components (9) horizontally arranged on the back of the circuit breaker supporting main board (7), buffer springs (10), the circuit breaker clamping plates (8) comprise clamping plate U-shaped parts (14), clamping plate attaching parts (15) horizontally arranged at two ends of the clamping plate U-shaped parts (14) and clamping plate clamping parts (16) for being inserted into the circuit breaker clamping grooves (6) are sequentially bent vertically, clamping plate limiting ports (17) are formed in the left side and right side of the clamping plate U-shaped parts (14), the circuit breaker positioning components (7) comprise limiting blocks (20) and a first substrate supporting main substrate supporting block (20), a substrate butt joint groove (22) used for placing the clamping plate U-shaped part (14) is formed in the substrate main limiting block (21), a substrate main butt joint opening (23) corresponding to the clamping plate limiting opening (17) is formed in the side wall of the substrate butt joint groove (22), spring positioning grooves (24) are formed in the front surface of the substrate supporting plate body (20) at two ends of the substrate main limiting block (21), and the buffer spring (10) is arranged in the spring positioning grooves (24) and the upper end of the buffer spring is propped against the bottom of the circuit breaker (4); The clamping plate limiting assembly (9) comprises an anti-falling block (28), a screw rod (29) and a pre-tightening spring (30), wherein the anti-falling block (28), the screw rod (29) and the pre-tightening spring (30) are inserted into the substrate main limiting block (21), the screw rod (29) penetrates through the substrate first positioning block (25) and then is in threaded connection with the anti-falling block (28), the pre-tightening spring (30) is sleeved on the screw rod (29), one end of the pre-tightening spring is propped against the anti-falling block (28), and the other end of the pre-tightening spring is propped against the substrate first positioning block (25).
  2. 2. The low-voltage switch cabinet body according to claim 1, wherein a substrate second positioning block (32) is further arranged on the back of the substrate bearing plate body (20), a positioning block bearing groove (33) corresponding to the anti-falling block (28) is formed in the side portion of the substrate second positioning block (32), and the anti-falling block (28) sequentially passes through the substrate main butt joint opening (23) and the clamping plate limiting opening (17) under the action of the pre-tightening spring (30) and is then placed in the positioning block bearing groove (33).
  3. 3. The low-voltage switch cabinet according to claim 1, wherein the number of the screw rods (29) is 2, the clamping plate limiting assembly (9) further comprises a hand pulling plate (35) sleeved on the two screw rods (29), and the hand pulling plate (35) is arranged on the outer side of the base plate first positioning block (25).
  4. 4. The low-voltage switch cabinet body according to claim 1, wherein the circuit breaker positioning assembly (3) further comprises a reinforcing plugboard (11), the receiving substrate plate body (20) is provided with a plugboard limiting seat (37) at the side end of the substrate butt joint groove (22), a plugboard bayonet (38) is arranged in the plugboard limiting seat (37), and the reinforcing plugboard (11) passes through the plugboard bayonet (38) and is then arranged above the clamping board attaching part (15).
  5. 5. The low-voltage switch cabinet according to claim 4, wherein the circuit breaker positioning assembly (3) further comprises an insulating partition plate (12), a partition plate limiting portion (40) is arranged at the bottom of the insulating partition plate (12), and a partition plate limiting groove (41) corresponding to the partition plate limiting portion (40) is formed in the other side end of the substrate abutting groove (22) of the bearing substrate plate body (20).

Description

Low-voltage switch cabinet body Technical Field The utility model relates to a low-voltage switch cabinet body. Background The low-voltage switch cabinet body is an electrical device for a power distribution system, and is generally used in a three-phase four-wire or five-wire system with a rated voltage of 380V and below as a core device for power distribution, control and protection. The existing circuit breakers arranged in a multi-row array are installed in the low-voltage switch cabinet body, the general circuit breakers are fixed on a mounting bottom plate through bolts, the bolts are required to be repeatedly screwed by using special tools, the disassembly and maintenance are time-consuming and labor-consuming, and vibration generated by electromagnetic force or external environment is easily transmitted to internal elements in the operation of the cabinet body due to the direct fit and contact of the circuit breakers and the mounting bottom plate, so that the bolts are loosened and the contacts are deviated, the service life of the circuit breakers is influenced, and improvement and optimization are performed. Disclosure of utility model In order to solve the problems, the utility model aims to provide a low-voltage switch cabinet. The low-voltage switch cabinet body adopts the technical scheme that the low-voltage switch cabinet body is characterized by comprising a switch cabinet frame, switch cabinet mounting beams transversely arranged in the switch cabinet frame, circuit breaker positioning assemblies longitudinally arranged on the two switch cabinet mounting beams, and circuit breakers sequentially arranged on the circuit breaker positioning assemblies at intervals from top to bottom, wherein the bottom of the circuit breaker is provided with a circuit breaker clamping groove, the circuit breaker positioning assemblies comprise a circuit breaker bearing main board, a circuit breaker clamping plate, a clamping plate limiting assembly horizontally arranged on the back of the circuit breaker bearing main board and a buffer spring, the circuit breaker clamping plate comprises a clamping plate U-shaped part, clamping plate attaching parts horizontally arranged by sequentially and vertically bending two ends of the clamping plate U-shaped part and clamping plate clamping parts for being inserted into the circuit breaker clamping grooves, the left side and the right side of the clamping plate U-shaped part are provided with clamping plate limiting openings, the circuit breaker bearing main board comprises a substrate plate body, the back of the substrate bearing main limiting block and a substrate first positioning block are arranged in the substrate main limiting block, a substrate butting groove for the clamping plate U-shaped part is arranged in the substrate main limiting block, the substrate main limiting block is provided with a substrate positioning groove for the clamping plate U-shaped part to be placed in the circuit breaker positioning block, the side wall corresponds to the substrate positioning groove, the clamping plate positioning groove is arranged at the front of the side of the main limiting block, and the side wall of the substrate positioning block is opposite to the substrate positioning groove, and the front side of the main limiting block is positioned at the front of the side of the substrate positioning groove; The clamping plate limiting assembly comprises an anti-falling block, a screw rod and a pre-tightening spring, wherein the anti-falling block is inserted into the substrate main limiting block, the screw rod passes through the substrate first positioning block and then is in threaded connection with the anti-falling block, the pre-tightening spring is sleeved on the screw rod, one end of the pre-tightening spring abuts against the anti-falling block, and the other end of the pre-tightening spring abuts against the substrate first positioning block. The back of the substrate bearing plate body is also provided with a substrate second positioning block, the side part of the substrate second positioning block is provided with a positioning block bearing groove corresponding to the anti-falling block, and the anti-falling block sequentially passes through the substrate main pair interface and the clamping plate limiting opening under the action of the pre-tightening spring and is then arranged in the positioning block bearing groove. The number of the screw rods is 2, the clamping plate limiting assembly further comprises a hand pulling plate sleeved on the two screw rods, and the hand pulling plate is arranged on the outer side of the first locating block of the base plate. The circuit breaker positioning assembly further comprises a reinforcing plugboard, the side end of the substrate butt joint groove of the substrate is provided with a plugboard limiting seat, a plugboard bayonet is arranged in the plugboard limiting seat, and the reinforcing plugboard penetrates throu