CN114284876A

CN114284876A - Pull formula cubical switchboard with circuit protection function

Info

Publication number: CN114284876A
Application number: CN202111580650.4A
Authority: CN
Inventors: 高栋; 徐倩; 李海瑞
Original assignee: Shandong Taishun Electric LLC
Current assignee: Shandong Taishun Electric LLC
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-04-05
Anticipated expiration: 2041-12-22
Also published as: CN114284876B

Abstract

The invention discloses a pull-out switch cabinet with a line protection function, and relates to the technical field of electrical cabinets. The intelligent cabinet temperature adjusting device comprises a cabinet body, cabinet body fixedly connected with sleeve, the sleeve endotheca is equipped with the loop bar, the loop bar is connected with electric unit through first support frame, the cabinet body is provided with the slide rail, the slide rail in-connection has first leading wheel, first leading wheel is through first cover connection, be connected with the backup pad on the first support frame, the spout has been seted up in the backup pad, sliding connection has the slider in the spout, slider fixedly connected with support, support and first apron fixed connection, the spout, all be equipped with the slope on the slide rail, the cabinet body is equipped with first connecting assembly, first connecting assembly has circuit module through the second support frame, be equipped with second coupling assembling between first apron and the cabinet body lateral wall, second coupling assembling is connected with the side door device. According to the invention, the first cover plate can drive the electric unit, the circuit module and the side door device to move, so that the linkage performance of the whole device is improved.

Description

Pull formula cubical switchboard with circuit protection function

Technical Field

The invention belongs to the technical field of electrical cabinets, and particularly relates to a pull-out type switch cabinet with a line protection function.

Background

The electrical cabinet is a cabinet which is processed by steel materials and used for protecting components from working normally. The electrical cabinet has the characteristics of small volume, simple and convenient installation, special technical performance, fixed position, unique configuration function, no field limitation, universal application, stable and reliable operation, high space utilization rate, less occupied area and environmental protection effect. The control center is used for commanding various components in a power supply circuit to reasonably distribute electric energy, is a control link for reliably receiving an upper end power supply and correctly feeding out load electric energy, and is also a key for obtaining whether a user is satisfied with the power supply quality. The improvement of the operation reliability of the power distribution box is a goal of creating quality engineering.

Present regulator cubicle only has simple and conventional cabinet style structure usually for protect inside electrical equipment and circuit, flexibility and the structure innovation degree to the cabinet body itself are not enough, in order to solve this problem, application number: CN201920141440.7 discloses an electrical cabinet with dust removal and heat dissipation functions, which mainly deals with dust removal and heat dissipation of the electrical cabinet, and protects internal equipment of the electrical cabinet from both heat dissipation and dust removal, but the cabinet body has a single structural function and a low linkage performance.

Disclosure of Invention

The technical problem to be solved by the present invention is to overcome the above disadvantages of the prior art, and to provide a pull-out switch cabinet with a line protection function.

The technical scheme for solving the technical problems is as follows: the improved cabinet comprises a cabinet body, wherein two opposite inner side walls of the cabinet body are fixedly connected with two sleeves, sleeve rods are sleeved in the sleeves and are in sliding connection with the sleeves, a plurality of sleeve rods are fixedly connected through a first support frame, an electric unit is placed on the first support frame, two opposite outer side walls of the cabinet body are respectively provided with a slide rail, a first guide wheel is connected in the slide rail in a rolling manner, two first guide wheels are fixedly connected through a first cover plate, a support plate is fixedly connected on the first support frame, a slide groove is formed in the support plate, a slide block is connected in the slide groove in a sliding manner, a support is fixedly connected with the slide block, the support is fixedly connected with the first cover plate, the slide groove and the slide rail are in a zigzag shape, slopes are arranged on the slide groove and the slide rail, and two opposite inner side walls of the cabinet body are respectively provided with a first connecting component, two first connecting elements passes through second support frame fixed connection, circuit module has been placed on the second support frame, first apron with be equipped with second coupling assembling between the external lateral wall of cabinet, second coupling assembling is connected with the side door device.

Further, first connecting element includes the pivot, the pivot with cabinet internal side wall fixed connection, the pivot cover is equipped with first turning block and rotates between the two and be connected, first turning block fixedly connected with spring, spring fixedly connected with second turning block, the second turning block articulates there is first turning rod, first turning rod with cabinet internal side wall is articulated, first turning rod with the second support frame is articulated, the second support frame articulates there is the second turning rod, the second turning rod with cabinet internal side wall is articulated.

Furthermore, one of them second dwang runs through there is the back shaft and fixed connection between the two, the back shaft runs through another second dwang and fixed connection between the two.

Further, the second connecting assembly comprises a sliding rod, one of the sliding rod is fixedly connected with two first supporting blocks on the sliding rail, the sliding rod penetrates through the two first supporting blocks, the sliding rod is connected with the first supporting blocks in a sliding mode, the first cover plate is fixedly connected with a second supporting block, the second supporting block penetrates through a guide rod and is connected with the guide rod in a sliding mode, the sliding direction of the guide rod is vertical, the guide rod is fixedly connected with a connecting block, one end of the sliding rod is fixedly connected with the connecting block, the sliding rod is fixedly connected with a first rack, the first rack is meshed with a gear, the gear rotates and is connected with a third supporting block, the third supporting block is fixedly connected with the sliding rail, and the gear is meshed with a second rack.

Further, the side door device includes the gib block, the gib block with third supporting shoe fixed connection, the gib block cover is equipped with first baffle and second baffle, first baffle the second baffle all with gib block sliding connection, first rack fixedly connected with connecting plate, the connecting plate with first baffle fixed connection, the second rack with second baffle fixed connection, first recess has been seted up to cabinet side wall, first recess fixedly connected with third support frame, first baffle the second baffle all with the laminating of third support frame.

Furthermore, two second guide wheels are connected in the sliding rail in a rolling mode, and the four second guide wheels are fixedly connected through a second cover plate.

Furthermore, a second groove is formed in the outer side wall of the cabinet body, and a tool box is connected to the second groove in a threaded mode.

The invention has the following beneficial effects:

(1) the first cover plate is used as a driving unit, the first cover plate drives the sliding block and the first guide wheel to move, the first guide wheel can only move in the horizontal direction, the sliding block slides in the sliding groove, the first support frame and the electric unit can be driven to lift, and the first support frame and the electric unit can be lifted twice because the sliding rail is provided with the slope.

(2) According to the invention, the first cover plate is used as a trigger unit, the second rotating block is touched through the first cover plate, the second rotating block drives the spring and the first rotating rod to move, the spring drives the first rotating block to move, and the first rotating rod and the second rotating rod can lift the second support frame and the circuit module.

(3) According to the invention, the first cover plate is used as a traction unit, the first cover plate drives the sliding rod to move, the sliding rod drives the first rack to move, the first rack drives the first baffle plate to move, the first rack drives the gear to rotate, the gear drives the second rack to move, and the second rack drives the second baffle plate to move, so that the first baffle plate and the second baffle plate can move in opposite directions, the first groove is opened, the heat is dissipated inside the cabinet body, and meanwhile, the parts inside the cabinet body can be maintained conveniently.

(4) In summary, the driving unit and the circuit module can be lifted through the movement of the first cover plate, and meanwhile, the heat dissipation and the maintenance can be performed on the interior of the cabinet body without independent control, so that the linkage performance is good, and the working efficiency is high.

Drawings

Fig. 1 is a schematic view of an overall structure of a pull-out type switch cabinet with a line protection function according to the present invention.

Fig. 2 is an enlarged view of the structure at a in fig. 1.

Fig. 3 is an enlarged view of the structure at B in fig. 1.

Fig. 4 is a schematic view of the internal structure of fig. 1.

Fig. 5 is a schematic structural diagram of a part of components for driving the electric unit to ascend and descend.

Fig. 6 is a rear view of fig. 5 with the cabinet removed.

Fig. 7 is a schematic structural view of fig. 5 with the cabinet and the first cover removed.

Fig. 8 is a schematic structural view of the first connection assembly.

Fig. 9 is a schematic structural view of fig. 1 with the first and second baffles removed.

Fig. 10 is a rear view of fig. 9.

Reference numerals: 1. a cabinet body; 2. a sleeve; 3. a loop bar; 4. a first connection assembly; 41. a rotating shaft; 42. a first rotating block; 43. a spring; 44. a second turning block; 45. a first rotating lever; 46. a second rotating lever; 5. a second connection assembly; 51. a slide bar; 52. a first support block; 53. a second support block; 54. a guide bar; 55. connecting blocks; 56. a first rack; 57. a gear; 58. a third support block; 59. a second rack; 6. a side door device; 61. a guide strip; 62. a first baffle plate; 63. a connecting plate; 64. a second baffle; 7. a first support frame; 8. an electrical unit; 9. a slide rail; 10. a first cover plate; 11. a support plate; 12. a chute; 13. a slider; 14. a support; 15. a second support frame; 16. a circuit module; 17. a support shaft; 18. a first groove; 19. a third support frame; 20. an electrical device; 21. a second groove; 22. a second guide wheel; 23. a second cover plate; 24. a tool box.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and fig. 2, the pull-out switch cabinet with a circuit protection function according to the embodiment is formed by connecting a cabinet body 1, a sleeve 2, a loop bar 3, a first support frame 7, an electrical unit 8, a slide rail 9, a first guide wheel, a first cover plate 10, a support plate 11, a slide groove 12, a slide block 13, a support 14, a first connecting assembly 4, a second connecting assembly 5 and a side door device 6.

As shown in fig. 5, the electric cabinet comprises a cabinet body 1, an electric device 20 is placed in the cabinet body 1, two opposite inner side walls of the cabinet body 1 are fixedly connected with two sleeves 2, sleeve rods 3 are sleeved in the sleeves 2 and are connected with the sleeves in a sliding manner, the sleeves 2 are arranged to support the sleeve rods 3, a plurality of sleeve rods 3 are fixedly connected with a first support frame 7, an electric unit 8 is placed on the first support frame 7, the electric unit 8 can move along with the movement of the first support frame 7, two opposite outer side walls of the cabinet body 1 are respectively provided with a slide rail 9, a first guide wheel is connected with the slide rail 9 in a rolling manner, the first guide wheel is not marked in the figure, the slide rail 9 is arranged to support the first guide wheel, so that the first guide wheel can make a linear movement on the slide rail 9 along a horizontal direction, and the two first guide wheels are fixedly connected with a first cover plate 10, the first cover plate 10 is fixed by the first guide wheel, so that the first cover plate 10 can make linear motion in the horizontal direction, as shown in fig. 6 and 7, a support plate 11 is fixedly connected to the first support frame 7, the support plate 11 is arranged to drive the first support frame 7 to move, a sliding groove 12 is formed in the support plate 11, a sliding block 13 is connected in the sliding groove 12, the sliding block 13 can slide in the sliding groove 12, the sliding block 13 can drive the support plate 11 to move, a bracket 14 is fixedly connected to the sliding block 13, the bracket 14 is fixedly connected to the first cover plate 10, the bracket 14 is arranged to connect the first cover plate 10 and the sliding block 13, the bracket 14 is driven by the first cover plate 10 to move, so as to drive the sliding block 13 to move, the sliding groove 12 and the sliding rail 9 are in a zigzag shape, slopes are arranged on the sliding groove 12 and the sliding rail 9, and the slopes are arranged on the sliding rail 9, when the first guide wheel moves along the slopes on the sliding rail 9, the lifting device can drive the support 14, the slide block 13, the support plate 11, the first support frame 7 and the electric unit 8 to lift upwards once, when the first guide wheel passes through a slope, the first guide wheel moves linearly along the horizontal direction on the slide rail 9, the slide block 13 drives the support plate 11, the first support frame 7 and the electric unit 8 to lift under the action of the chute 12 with a slope on the support plate 11, the heights of the support 14 and the slide block 13 are unchanged, so that the first support frame 7 and the electric unit 8 can be lifted twice, the electric unit 8 can be lifted to expose out of the cabinet body 1, maintenance is convenient, the two opposite inner side walls of the cabinet body 1 are respectively provided with the first connecting component 4, the two first connecting components 4 are fixedly connected through the second support frame 15, the circuit module 16 is placed on the second support frame 15, and the arranged first connecting component 4 can drive the second support frame 15 and the circuit module 16 to lift through the movement of the first cover plate 10, need not provide the drive to circuit module 16 alone, it is nimble convenient, be equipped with second coupling assembling 5 between first apron 10 and the cabinet body 1 lateral wall, second coupling assembling 5 is connected with side door gear 6, the second coupling assembling 5 that sets up can be through opening and closing of the motion control curb plate device of first apron 10, need not control side door gear 6 alone, the motion of a plurality of subassemblies can be controlled through the motion of first apron 10, need not provide the drive alone to every subassembly, improve the linkage of whole device, and the work efficiency is improved.

As shown in fig. 4 and 8, the first connection assembly 4 includes a rotation shaft 41, the rotation shaft 41 is fixedly connected to the inner side wall of the cabinet 1, the rotation shaft 41 is sleeved with a first rotation block 42 and rotatably connected to the first rotation block 42, the rotation shaft 41 is arranged to support the first rotation block 42, so that the first rotation block 42 can swing around the rotation shaft 41, the first rotation block 42 is fixedly connected to a spring 43, the spring 43 is arranged to reset while playing a connection role, when the second rotation block 44 is stressed, the force can be transmitted to the spring 43, the second support 15 is lifted by the cooperation of the spring 43, the first rotation rod 45 and the second rotation rod 46, when the second rotation block 44 is not stressed, the spring 43 resets, and the second support 15 can also be lowered without repeatedly controlling the lifting and lowering of the second support 15, which is flexible and convenient, the spring 43 is fixedly connected to the second rotation block 44, second turning block 44 that sets up can drive the motion of spring 43, second turning block 44 articulates there is first turning rod 45, first turning rod 45 that sets up connects second turning block 44 and second support frame 15, drive first turning rod 45 motion through second turning block 44, first turning rod 45 drives second support frame 15 motion, first turning rod 45 is articulated with cabinet body 1 inside wall, first turning rod 45 is articulated with second support frame 15, second support frame 15 articulates there is second dwang 46, the second dwang 46 and the synchronous swing of first dwang 45 that set up, the assurance can promote second support frame 15, thereby maintain circuit module 16 on the second support frame 15, second dwang 46 is articulated with cabinet body 1 inside wall.

As shown in fig. 4 and 5, one of the second rotating levers 46 penetrates through the supporting shaft 17 and is fixedly connected with the supporting shaft 17, the supporting shaft 17 penetrates through the other second rotating lever 46 and is fixedly connected with the other second rotating lever 46, and the two second rotating levers 46 can be connected through the supporting shaft 17, so that the two second rotating levers 46 can move better in synchronization, and the stability of the device in the moving process is improved.

As shown in fig. 1 and 3, the second connecting assembly 5 includes a sliding rod 51, the sliding rod 51 is arranged to drive the first rack 56 to move, the first cover plate 10 can drive the first rack 56 to move through the sliding rod 51, two first supporting blocks 52 are fixedly connected to one of the slide rails 9, the sliding rod 51 penetrates through the two first supporting blocks 52, the sliding rod 51 is slidably connected to the first supporting blocks 52, the first supporting block 52 is arranged to support the sliding rod 51, so that the sliding rod 51 can only move linearly in the horizontal direction in the first supporting block 52 along with the movement of the first cover plate 10, the first cover plate 10 is fixedly connected to a second supporting block 53, the second supporting block 53 penetrates through a guide rod 54 and is slidably connected to the two, the guide rod 54 is vertically arranged in the sliding direction, the guide rod 54 is fixedly connected to a connecting block 55, one end of the sliding rod 51 is fixedly connected to the connecting block 55, the second supporting block 53, the guiding rod 54 and the connecting block 55 are arranged to ensure that the first cover plate 10 does not interfere with the sliding rod 51 when passing through the slope of the sliding rail 9 along with the first guiding wheel, i.e. the sliding rod 51 does not move in the vertical direction along with the first cover plate 10, the first cover plate 10 only drives the second supporting block 53 to slide on the guiding rod 54, and on the other hand can ensure that the sliding rod 51 can be driven to do linear motion in the horizontal direction when the first cover plate 10 and the first guiding wheel do linear motion in the horizontal direction, so as to ensure that the first cover plate 10 can normally move in the vertical direction and also can drive the sliding rod 51 to normally move in the horizontal direction, the sliding rod 51 is fixedly connected with a first rack 56, the first rack 56 is engaged with a gear 57, the gear 57 is arranged to drive a second rack 59 to move, the gear 57 is rotatably connected with a third supporting block 58, the third supporting block 58 can support the gear 57, the third supporting block 58 is fixedly connected with the slide rail 9, and the gear 57 is meshed with the second rack 59.

As shown in fig. 1 and 3, the side door apparatus 6 includes a guide strip 61, the guide strip 61 is fixedly connected to the third supporting block 58, the guide strip 61 is sleeved with a first baffle plate 62 and a second baffle plate 64, the first baffle plate 62 and the second baffle plate 64 are both slidably connected to the guide strip 61, the guide strip 61 is arranged to support the first baffle plate 62 and the second baffle plate 64 and simultaneously play a role in guiding so that the first baffle plate 62 and the second baffle plate 64 can only move in a horizontal direction along the guide strip 61, the first rack 56 is fixedly connected with a connecting plate 63, the connecting plate 63 is fixedly connected to the first baffle plate 62, the connecting plate 63 is arranged to connect the first rack 56 to the first baffle plate 62 so that the first baffle plate 62 can move along with the movement of the first rack 56, as shown in fig. 9 and 10, the second rack 59 is fixedly connected to the second baffle plate 64, the second baffle plate 64 can move along with the movement of the second rack 59, first recess 18 has been seted up to cabinet body 1 lateral wall, the recess of setting makes things convenient for the heat dissipation in the cabinet body 1 and maintains with spare part in the cabinet body 1, first recess 18 department fixedly connected with third support frame 19, the first rack 56 of setting can drive second rack 59 simultaneous movement through gear 57, and first rack 56 is opposite with second rack 59 direction of motion, consequently first baffle 62 is opposite with second baffle 64 direction of motion, the third support frame 19 of setting can cooperate with first baffle 62 and second baffle 64, thereby can be according to opening and being closed of actual conditions control first recess 18, and is nimble convenient, first baffle 62, second baffle 64 all laminates with third support frame 19.

As shown in fig. 1 and 2, two second guide wheels 22 are connected to the slide rail 9 in a rolling manner, and the four second guide wheels 22 are fixedly connected through a second cover plate 23. The second leading wheel 22 that sets up makes things convenient for the motion of second apron 23, when circuit module 16 needs to overhaul, remove second apron 23 and open the breach of the cabinet body 1 upper surface, with circuit module 16 lifting, circuit module 16 overhauls the back of accomplishing, move circuit module 16 to the cabinet body 1 in, again with second apron 23 back original position, the breach department with the cabinet body 1 upper surface seals, protect the part in the cabinet body 1, second apron 23 makes mobilizable formula and does not hinder the normal motion of first apron 10 simultaneously, guarantee that whole device can normal operating.

As shown in fig. 9 and 10, the second recess 21 has been seted up to the cabinet body 1 lateral wall, second recess 21 department threaded connection has toolbox 24, the second recess 21 of setting is convenient dispels the heat and maintains the part of the internal portion of cabinet to the internal 1, toolbox 24 of setting can be opened and seal second recess 21 according to actual conditions on the one hand, can place ammeter or other instrument in the on the other hand toolbox 24, do not need the staff to make a round trip to carry, it is nimble convenient, be convenient for install and dismantle toolbox 24 with toolbox 24 and cabinet body 1 surface threaded connection.

The working principle of the embodiment is as follows:

(1) when examining and repairing the part in the cabinet body 1, at first promote the second apron 23 to the one side motion of keeping away from sleeve 2, expose the breach of the cabinet body 1 top, guarantee that circuit module 16 can promote out from the cabinet body 1 is internal completely.

(2) The first cover plate 10 is pushed to move, the first cover plate 10 drives the first guide wheel to move in the slide rail 9, the first cover plate 10 drives the support 14 to move, when the first cover plate 10 passes through the slope on the slide rail 9, the support 14, the slider 13, the support plate 11, the first support frame 7 and the electric unit 8 are driven to lift for the first time, meanwhile, the first cover plate 10 drives the second support block 53 to move in the vertical direction, the second support block 53 slides in the vertical direction along the guide rod 54, after the first guide wheel passes through the slope, the first cover plate 10 continues to drive the first guide wheel to move linearly on the slide rail 9 along the horizontal direction, at the moment, the first cover plate 10 drives the support 14 and the slider 13 to move in the horizontal direction, the slider 13 slides in the slide groove 12 and simultaneously drives the support plate 11, the first support frame 7 and the electric unit 8 to move in the vertical direction, so as to realize the second lifting of the second support frame 15 and the electric unit 8, the electric unit 8 is lifted out of the cabinet body 1, and the electric unit 8 is maintained.

(3) First apron 10 continues to move in slide rail 9 according to step (2), first apron 10 touches second turning block 44, second turning block 44 drives and drives spring 43 and first turning rod 45 motion, spring 43 drives first turning block 42 and swings round pivot 41, first turning rod 45 drives second support frame 15 motion under the cooperation of second turning rod 46, second support frame 15 drives circuit module 16 motion, promote second support frame 15 and circuit module 16 from the cabinet body 1, overhaul circuit module 16.

(4) After a first guide wheel on the first cover plate 10 passes through the slope on the slide rail 9, the first cover plate 10 continues to move, the second support block 53 can be driven, the guide rod 54 and the connection block 55 move in the horizontal direction, the connection block 55 drives the sliding rod 51 to slide in the first support block 52, the sliding rod 51 drives the first rack 56 to move, the first rack 56 drives the gear 57 to rotate, the gear 57 drives the second rack 59 to move, the first rack 56 drives the connection plate 63 to move while moving, the connection plate 63 drives the first baffle plate 62 to move, the second rack 59 drives the second baffle plate 64 to move, the first baffle plate 62 and the second baffle plate 64 move in opposite directions, and the first baffle plate 62 and the second baffle plate 64 can display the first groove 18, dissipate heat inside the cabinet body 1, and meanwhile, maintenance of parts in the cabinet body 1 is facilitated.

(5) After the electric unit 8 and the circuit module 16 are overhauled, the electric unit 8 and the circuit module 16 are lowered back into the cabinet body 1 according to the above steps, the opening of the first groove 18 is sealed by the first baffle plate 62 and the second baffle plate 64, and the gap on the upper surface of the solid body is sealed by the first cover plate 10 and the second cover plate 23.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims

1. The utility model provides a pull formula cubical switchboard with line protection function which characterized in that: comprises a cabinet body (1), two opposite inner side walls of the cabinet body (1) are fixedly connected with two sleeves (2), sleeve rods (3) are sleeved in the sleeves (2) and are in sliding connection with the sleeve rods, the sleeve rods (3) are fixedly connected with one another through a first support frame (7), an electric unit (8) is placed on the first support frame (7), slide rails (9) are arranged on the two opposite outer side walls of the cabinet body (1), first guide wheels are connected with the slide rails (9) in a rolling manner and are fixedly connected with one another through first cover plates (10), support plates (11) are fixedly connected with the first support frame (7), slide grooves (12) are formed in the support plates (11), slide blocks (13) are connected with the slide grooves (12) in a sliding manner, the slide blocks (13) are fixedly connected with supports (14), and the supports (14) are fixedly connected with the first cover plates (10), spout (12) slide rail (9) shape is "it" font, spout (12) all be equipped with the slope on slide rail (9), the cabinet body (1) two relative inside walls all are equipped with first connecting component (4), two first connecting component (4) are through second support frame (15) fixed connection, circuit module (16) have been placed on second support frame (15), first apron (10) with be equipped with second coupling assembling (5) between the cabinet body (1) lateral wall, second coupling assembling (5) are connected with side door device (6).

2. The pull-out switch cabinet with the line protection function according to claim 1, wherein: first connecting element (4) are including pivot (41), pivot (41) with the cabinet body (1) inside wall fixed connection, pivot (41) cover is equipped with first turning block (42) and rotates between the two and connect, first turning block (42) fixedly connected with spring (43), spring (43) fixedly connected with second turning block (44), second turning block (44) articulate there is first dwang (45), first dwang (45) with the cabinet body (1) inside wall is articulated, first dwang (45) with second support frame (15) are articulated, second support frame (15) articulate there is second dwang (46), second dwang (46) with the cabinet body (1) inside wall is articulated.

3. The pull-out switch cabinet with the line protection function according to claim 2, characterized in that: one of them second dwang (46) is run through and is had support shaft (17) and fixed connection between the two, support shaft (17) run through another second dwang (46) and fixed connection between the two.

4. The pull-out switch cabinet with the line protection function according to claim 1, wherein: the second connecting assembly (5) comprises a sliding rod (51), wherein one sliding rail (9) is fixedly connected with two first supporting blocks (52), the sliding rod (51) penetrates through the two first supporting blocks (52), the sliding rod (51) is in sliding connection with the first supporting blocks (52), a second supporting block (53) is fixedly connected to the first cover plate (10), a guide rod (54) penetrates through the second supporting block (53) and is in sliding connection with the second supporting block, the guide rod (54) is vertically arranged in the sliding direction, the guide rod (54) is fixedly connected with a connecting block (55), one end of the sliding rod (51) is fixedly connected with the connecting block (55), the sliding rod (51) is fixedly connected with a first rack (56), the first rack (56) is meshed with a gear (57), and the gear (57) is rotatably connected with a third supporting block (58), the third supporting block (58) is fixedly connected with the sliding rail (9), and the gear (57) is meshed with a second rack (59).

5. The pull-out switch cabinet with the line protection function according to claim 4, wherein: side door device (6) include gib block (61), gib block (61) with third supporting shoe (58) fixed connection, gib block (61) cover is equipped with first baffle (62) and second baffle (64), first baffle (62) second baffle (64) all with gib block (61) sliding connection, first rack (56) fixedly connected with connecting plate (63), connecting plate (63) with first baffle (62) fixed connection, second rack (59) with second baffle (64) fixed connection, first recess (18) have been seted up to cabinet body (1) lateral wall, fixedly connected with third support frame (19) are located in first recess (18), first baffle (62) second baffle (64) all with the laminating of third support frame (19).

6. The pull-out switch cabinet with the line protection function according to claim 1, wherein: two second guide wheels (22) are connected in the sliding rail (9) in a rolling mode, and the four second guide wheels (22) are fixedly connected through a second cover plate (23).

7. The pull-out switch cabinet with the line protection function according to claim 1, wherein: a second groove (21) is formed in the outer side wall of the cabinet body (1), and a tool box (24) is connected to the second groove (21) in a threaded mode.