Switch cabinet convenient for quick assembly and disassembly of bus duct and circuit breaker

Abstract

The invention provides a switch cabinet convenient for quick assembly and disassembly of a bus duct and a circuit breaker, and relates to the technical field of switch cabinets, the switch cabinet comprises a cabinet body with a switch door on one side, and further comprises two groups of extension rails, one ends of the extension rails extend from the interior of the cabinet body to the switch door direction, and each group comprises two extension rails; the two groups of extension rails are longitudinally and symmetrically arranged in the cabinet body, and the two extension rails in the same group are respectively positioned on the inner walls of the two sides of the cabinet body and are positioned on the same plane. According to the invention, the bus duct and the circuit breaker are mounted on the mounting plate, the mounting plate is stabilized on the moving frame by utilizing the clamping effect of the clamping block and the clamping groove, and when the bus duct or the circuit breaker is taken down, the corresponding mounting plate can be taken down only by utilizing the releasing assembly, enabling the clamping block to be far away from the clamping groove and releasing the limiting state of the clamping block to the clamping groove. And the bus duct or the circuit breaker can be disassembled, and the use is convenient.

Description

Technical Field

[0001] This invention relates to the technical field of switchgear, and in particular to a switchgear that facilitates the quick assembly and disassembly of busbar trunking and circuit breakers. Background Technology

[0002] Switchgear is an important electrical device in power systems used for power distribution, control, and protection. It typically consists of a cabinet, switching equipment, measuring instruments, protection devices, and auxiliary equipment. It is widely used in power generation, transmission, distribution, and power conversion. The cabinet is enclosed in a metal shell and has an IP protection rating, which can isolate internal live parts to prevent accidental contact by personnel. At the same time, the disconnecting switch can create a clear electrical break during maintenance to ensure the safety of maintenance personnel. Switchgear can distribute electrical energy in the power grid to different load circuits as needed, such as transformers, motors, and lighting systems. Through switching equipment, such as circuit breakers and disconnecting switches, the switching operations are performed to control the on / off state of the circuit and ensure the orderly operation of the power system.

[0003] Busbar trunking within switchgear is the main conductive component used for collecting, distributing, and transmitting electrical energy. It is typically made of copper or aluminum, with rectangular, circular, or channel-shaped cross-sections. Its core functions include: power collection and transmission, electrical connection hubs, and mechanical support. Circuit breakers within the switchgear are the most important switching devices, combining "on / off control" and "fault protection" functions. They can manually or automatically connect or disconnect circuits during normal operation and automatically trip to cut off power in case of short circuits, overloads, or undervoltage faults. Their core functions include: normal operation control, fault protection, and arc extinguishing. Overall, the switchgear, as a whole, is electrically connected to its functional units via busbars, forming a power transmission network. Circuit breakers are installed in each circuit, responsible for controlling the on / off state of electrical energy and providing fault protection. However, when installing busbar trunking and circuit breakers within the switchgear, they are generally bolted to the supports inside the switchgear. Given the depth of the switchgear, bolted connections are time-consuming, causing inconvenience for workers during installation or disassembly. Summary of the Invention

[0004] This invention provides a switchgear that facilitates the quick assembly and disassembly of busbar trunking and circuit breakers, thereby solving the problem that the bolt connection method in the prior art requires a long time and causes inconvenience to the staff.

[0005] This invention provides a switch cabinet for quick assembly and disassembly of busbar trunking and circuit breakers, comprising a cabinet body with a switch door on one side, and further comprising: an extension rail, one end of which extends from the inside of the cabinet body toward the switch door, and is configured in two sets, each set consisting of two rails, the two sets of extension rails being longitudinally symmetrically arranged inside the cabinet body, the two extension rails in the same set being located on the inner walls of the two sides of the cabinet body respectively, and being on the same plane; a movable frame, sliding on the extension rails; at least two mounting plates, respectively used for mounting the busbar trunking and the circuit breaker, the mounting plates having slots; a first mounting mechanism and a second mounting mechanism provided on the movable frame, the first mounting mechanism and the second mounting mechanism each having a locking block suitable for engaging with the slot; wherein, the first mounting mechanism and the second mounting mechanism each have a release component, the release component being used to drive the locking block away from the slot and release the locking block from the slot.

[0006] Preferably, the movable frame includes two transverse rods and a connecting frame; wherein, the two transverse rods slide on two sets of extension rails respectively, the extension direction of the transverse rods is perpendicular to the extension direction of the extension rails, and a limiting component is provided between the two ends of the transverse rods and the two extension rails of one set.

[0007] Preferably, a ratchet is connected to the extension track, and the ratchet is located at the end of the extension track near the door. A sliding track parallel to its extension direction is provided on the extension track. A sliding wheel is provided on the sliding track. The sliding wheel is connected to the end of the transverse rod through a wheel frame. A lateral track is also provided on the extension track. A lateral slider is slidably connected in the lateral track. The lateral slider is connected to the wheel frame.

[0008] Preferably, the limiting assembly includes an ear plate, a pressing block, a retracting column, a lifting tube, a first bracket, a first spring, and a lifting rod; wherein, the ear plate is fixedly connected to the end of the transverse rod, the retracting column is slidably connected to the ear plate, one end of the pressing block is movably engaged with a ratchet rack, the other end of the pressing block is connected to the retracting column, the end of the retracting column away from the pressing block extends into the interior of the lifting tube and is provided with a lifting protrusion, the retracting column and the lifting tube are slidably connected, the first bracket is connected to the end of the transverse rod, one end of the lifting rod is longitudinally slidably connected to the first bracket, the end of the lifting rod is connected to the lifting tube, and the two ends of the first spring are respectively connected to the pressing block and the ear plate.

[0009] Preferably, the mounting plate includes two movable plates, one of which is connected to an adjustment plate, one end of which extends toward the other movable plate, and the adjustment plate has a fixed straight slot. The other movable plate is connected to a ring plate suitable for sliding the adjustment plate, has a through slot, and has a bolt plate. Both movable plates are provided with mounting holes suitable for bolt connection, the slots are opened on both sides of the movable plates, and handles are connected to the movable plates; Two symmetrical moving slots are provided on the movable plate. The locking block is slidably connected in the moving slot. A second spring is connected in the moving slot, and one end of the second spring is connected to the locking block.

[0010] Preferably, the installation mechanism one and installation mechanism two have the same structure and both include a vertical track and a sliding frame. There are two vertical tracks, both of which are fixedly connected to a horizontal rod. The vertical tracks are provided with positioning holes. There are two sliding frames, each of which is connected to two sliding strips. The sliding strips are slidably connected to the vertical track. One of the sliding frames has a positioning bolt on one of the sliding strips. One end of the positioning bolt passes through the positioning hole and is connected to the vertical track.

[0011] Preferably, a guide and an adjusting member are connected between the two sliding frames; The guide component includes a guide sleeve and a guide rod. The guide sleeve is connected to one of the sliding frames, and the guide rod is connected to the other sliding frame. The guide sleeve and the guide rod are slidably connected. The adjusting component includes a threaded sleeve and a threaded rod. The threaded sleeve is connected to one of the sliding frames, and the threaded rod is connected to the other sliding frame. The threaded sleeve and the threaded rod are threadedly connected.

[0012] Preferably, the movable plate is provided with a docking protrusion, the sliding frame is provided with a docking block, the docking block is provided with a docking groove suitable for the docking protrusion to engage, the docking block is also provided with a telescopic groove, a spring is connected in the telescopic groove, one end of the spring is connected to a push plate, when the docking protrusion engages in the docking groove, the push plate and the movable plate abut against each other.

[0013] Preferably, each of the sliding frames is provided with a release assembly, which includes a hinge plate, a rotating shaft, a deflecting cam, a gear, a shaft bracket, and a drive rod. The hinge plate is connected to the locking block, the rotating shaft is rotatably connected to the sliding frame, the deflecting cam is connected to the rotating shaft, the deflecting cam has two symmetrically arranged hinge protrusions, a connecting rod is hinged to the hinge protrusion, the end of the connecting rod away from the hinge protrusion is connected to the hinge plate, the shaft bracket is connected to the sliding frame, and the drive rod is rotatably connected to the shaft bracket.

[0014] Preferably, the gear component includes a first bevel gear connected to the end of the rotating shaft and a second bevel gear connected to the drive rod, and the first bevel gear and the second bevel gear mesh with each other. A transmission component is provided between the drive rods on two adjacent sliding frames. The transmission component includes a toothed tube and a toothed rod. The toothed tube is connected to the end of one of the drive rods, and the toothed rod is connected to the end of the other drive rod. An input spline is connected to the end of one of the drive rods away from the other drive rod.

[0015] The switchgear provided by this invention, which facilitates the quick assembly and disassembly of busbar trunking and circuit breakers, has at least the following beneficial effects: 1. By using the mounting plate, the busbar trunking and circuit breaker can be installed onto the mounting plate. Then, the mounting plate is connected to the corresponding mounting mechanism one and mounting mechanism two. The mounting plate is then stabilized on the moving frame by the interlocking action of the locking block and the locking slot. When removing the busbar trunking or circuit breaker, simply use the release component to move the locking block away from the locking slot, releasing the locking block's limiting state on the locking slot. At this time, the corresponding mounting plate can be removed, completing the disassembly of the busbar trunking or circuit breaker. It is convenient to use. During this process, pushing the moving frame can adjust the position of the busbar trunking and circuit breaker in the cabinet, thereby facilitating maintenance work for the staff. Through the cooperation of the above structures, the installation method of this device is more convenient than the bolt connection method, greatly reducing the time users spend installing and removing the busbar trunking and circuit breaker in the cabinet, bringing convenience to the staff. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the internal structure of the cabinet provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the cabinet's three-dimensional structure provided in an embodiment of the present invention; Figure 3 This is provided by the embodiments of the present invention. Figure 1 Schematic diagram of the middle section Figure 1 ; Figure 4 This is provided by the embodiments of the present invention. Figure 1 Schematic diagram of the middle section Figure 2 ; Figure 5 This is provided by the embodiments of the present invention. Figure 4 Right view; Figure 6 This is provided by the embodiments of the present invention. Figure 4 Schematic diagram of a local structure in the middle; Figure 7 This is provided by the embodiments of the present invention. Figure 6 Enlarged structural diagram at point A in the middle; Figure 8 This is provided by the embodiments of the present invention. Figure 3 Schematic diagram of a local structure in the middle; Figure 9 This is a schematic diagram of the mounting plate structure provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the extended track and the moving frame structure provided in an embodiment of the present invention; Figure 11 This is provided by the embodiments of the present invention. Figure 10 Enlarged structural diagram at point B; Figure 12 This is provided by the embodiments of the present invention. Figure 11 Schematic diagram of a localized explosion of the structure.

[0018] Figure label: 1. Cabinet body; 2. Opening and closing door; 3. Extension track; 4. Moving frame; 41. Horizontal bar; 42. Connecting frame; 5. Mounting plate; 51. Movable plate; 52. Slot one; 53. Mounting hole; 54. Handle; 55. Moving slot; 56. Spring two; 57. Connecting protrusion; 6. Adjusting plate; 61. Fixed straight slot; 7. Ring plate; 8. Bolt plate; 9. Locking block; 10. Locking slot; 11. Ratchet; 12. Sliding track; 13. Sliding wheel; 14. Side track; 15. Side slider; 16. Wheel frame; 17. Ear plate; 18. Extrusion block; 19. Retracting column; 20. Lifting tube; 21. Bracket one; 22. Spring one; 23. 26. Lifting rod; 24. Lifting protrusion; 25. Vertical track; 26. Sliding frame; 261. Hinge plate; 262. Rotating shaft; 2621. Bevel gear one; 263. Deflecting cam; 264. Shaft bracket; 265. Drive rod; 266. Hinge protrusion; 267. Connecting rod; 268. Bevel gear two; 27. Positioning hole; 28. Sliding bar; 29. ​​Positioning bolt; 30. Guide sleeve; 31. Guide rod; 32. Threaded sleeve; 33. Threaded rod; 34. Connecting block; 340. Telescopic groove; 341. Spring three; 342. Push plate; 35. Connecting groove; 36. Gear tube; 361. Toothed rod; 37. Input spline. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] like Figures 1-12 As shown, the switch cabinet provided by the embodiment of the present invention, which facilitates the quick assembly and disassembly of busbar trunking and circuit breakers, includes a cabinet 1 with a switch door 2 on one side, an extension rail 3, a movable frame 4, a mounting plate 5, and a first mounting mechanism and a second mounting mechanism mounted on the movable frame 4. Specifically, one end of the extension rail 3 extends from the inside of the cabinet 1 toward the switch door 2 and is set in two groups, with two extension rails in each group. The two groups of extension rails 3 are longitudinally symmetrically arranged inside the cabinet 1. The two extension rails 3 in the same group are located on the inner walls of both sides of the cabinet 1 and are on the same plane. The movable frame 4 slides on the extension rail 3. There are at least two mounting plates 5, which are used to install busbar trunking and circuit breakers respectively. The mounting plate 5 has a slot 10. The first mounting mechanism and the second mounting mechanism are both provided with a locking block 9 suitable for engaging with the slot 10. The first mounting mechanism and the second mounting mechanism are both provided with a release component, which is used to drive the locking block 9 away from the slot 10 and release the locking relationship between the locking block 9 and the slot 10. In use, the busbar trunking and circuit breaker are installed onto their respective mounting plates 5. The user then holds the mounting plates 5 and aligns them with mounting mechanism one and mounting mechanism two, respectively. Finally, the slots 10 on the mounting plates 5 are aligned with the locking blocks 9, causing the locking blocks 9 to engage within the slots 10. The locking blocks 9 then limit the movement of the slots 10, ensuring a stable connection between the mounting plates 5 and mounting mechanism one or two. When it is necessary to remove the busbar trunking or circuit breaker, simply use the release mechanism to remove the locking blocks. When block 9 moves away from slot 10, the limiting state of block 9 on slot 10 is released. At this time, the corresponding mounting plate 5 can be removed to complete the disassembly of the busbar trunking or circuit breaker. When the mounting plate 5 with the busbar trunking and the mounting plate 5 with the circuit breaker are respectively connected to mounting mechanism one and mounting mechanism two, there is a distance between the busbar trunking and the circuit breaker, and the two are in a longitudinally opposite state. Then, the corresponding wires can be connected to the busbar trunking or the circuit breaker to realize the electrical connection between the two and perform their respective functions. When the busbar trunking or circuit breaker is installed on the first and second installation mechanisms, pushing the movable frame 4 will move the busbar trunking or circuit breaker from the switch door 2 position to the inside of the cabinet 1, or from the inside of the cabinet 1 to the switch door 2 position. This allows the busbar trunking or circuit breaker to be pulled out of the cabinet 1 during maintenance or installation / removal, and to be pushed back into the cabinet 1 after maintenance is completed, thus facilitating maintenance work for the staff.

[0021] To achieve the above effect, the movable frame 4 includes two transverse rods 41 and a connecting frame 42; wherein, the two transverse rods 41 slide on two sets of extension rails 3 respectively, and the extension direction of the transverse rods 41 is perpendicular to the extension direction of the extension rails 3. In addition to connecting the first installation mechanism and the second installation mechanism, the movable frame 4 can also connect other related electrical equipment and structures, depending on the usage requirements, without limitation. Secondly, in order to better solve the problem, the device structure also includes limiting components between the two ends of the transverse rod 41 and one of the two extended rails 3; Furthermore, a ratchet 11 is connected to the extension track 3, and the ratchet 11 is located on the end of the extension track 3 near the opening and closing door 2. A sliding track 12 parallel to its extension direction is provided on the extension track 3. A sliding wheel 13 is provided on the sliding track 12. The sliding wheel 13 is connected to the end of the transverse rod 41 through the wheel frame 16. A lateral track 14 is also provided on the extension track 3. A lateral slider 15 is slidably connected in the lateral track 14. The lateral slider 15 is connected to the wheel frame 16. The limiting assembly includes an ear plate 17, a pressing block 18, a retracting column 19, a lifting tube 20, a bracket 21, a spring 22, and a lifting rod 23. The ear plate 17 is fixedly connected to the end of the transverse rod 41. The retracting column 19 is slidably connected to the ear plate 17. One end of the pressing block 18 is movably engaged with the ratchet rack 11, and the other end of the pressing block 18 is connected to the retracting column 19. The end of the retracting column 19 away from the pressing block 18 extends into the interior of the lifting tube 20 and is provided with a lifting protrusion 24. The retracting column 19 and the lifting tube 20 are slidably connected. The bracket 21 is connected to the end of the transverse rod 41. One end of the lifting rod 23 is slidably connected longitudinally to the bracket 21. The end of the lifting rod 23 is connected to the lifting tube 20. The two ends of the spring 22 are respectively connected to the pressing block 18 and the ear plate 17. When the movable frame 4 moves from the inside of the cabinet 1 to the position of the cabinet 1 door 2, until the pressing block 18 contacts the ratchet 11, as the movable frame 4 moves, the pressing block 18 will contact the teeth on the ratchet 11 and engage in the groove between the teeth. Because the teeth on the ratchet 11 are tilted to one side, after the pressing block 18 moves a certain distance on the ratchet 11, under the action of the spring 22, the pressing block 18 can only move in one direction. Therefore, it is convenient to install the mounting plate 5 on the mounting mechanism 1 or the mounting mechanism 2, so that the movable frame 4 can achieve self-locking. When it is necessary to release the locked state of movement, simply move the lifting rod 23 upward, which in turn drives the retracting column 19 upward through the lifting tube 20, and finally drives the pressing block 18 upward, separating it from the ratchet rack 11. At this time, the one-way locking state of the ratchet rack 11 on the pressing block 18 can be released.

[0022] Mounting plate 5 includes two movable plates 51. One movable plate 51 is connected to an adjusting plate 6. One end of the adjusting plate 6 extends toward the other movable plate 51. The adjusting plate 6 has a fixed straight slot 61. The other movable plate 51 is connected to a ring plate 7 suitable for sliding the adjusting plate 6, has a through slot 52, and has a bolt plate 8. In this way, the distance between the two movable plates 51 can be adjusted, thereby adapting to busbar trunking or circuit breakers of different lengths and increasing the practicality of mounting plate 5. Both movable plates 51 are provided with mounting holes 53 suitable for bolt connection, and slots 10 are opened on both sides of the movable plates 51. Handles 54 are connected to the movable plates 51 to facilitate users to pick up the movable plates 51. Two symmetrical moving slots 55 are provided on the sliding frame 26. The locking block 9 is slidably connected in the moving slot 55. A second spring 56 is connected in the moving slot 55. One end of the second spring 56 is connected to the locking block 9. When the locking slot 10 on the mounting plate 5 is engaged with the locking block 9, the locking block 9 can reciprocate under the pressure of the edge of the locking slot 10 under the action of the second spring 56. The installation mechanism 1 and installation mechanism 2 have the same structure and both include a vertical rail 25 and a sliding frame 26. There are two vertical rails 25, both of which are fixedly connected to the horizontal rod 41. The vertical rails 25 are provided with positioning holes 27. There are two sliding frames 26, and each sliding frame 26 is connected to two sliding strips 28. The sliding strips 28 are slidably connected to the vertical rails 25. One of the sliding strips 28 on one of the sliding frames 26 is provided with a positioning bolt 29. One end of the positioning bolt 29 passes through the positioning hole 27 and is connected to the vertical rail 25. A guide and an adjusting component are connected between the two sliding brackets 26; The guide component includes a guide sleeve 30 and a guide rod 31. The guide sleeve 30 is connected to one of the sliding frames 26, and the guide rod 31 is connected to the other sliding frame 26. The guide sleeve 30 and the guide rod 31 are slidably connected, so that the two sliding frames 26 can slide relatively stably. The adjusting component includes a threaded sleeve 32 and a threaded rod 33. The threaded sleeve 32 is connected to one of the sliding frames 26, and the threaded rod 33 is connected to the other sliding frame 26. The threaded sleeve 32 and the threaded rod 33 are threadedly connected. By rotating the threaded sleeve 32, the distance between the two sliding frames 26 can be adjusted. The movable plate 51 is provided with a docking protrusion 57, and the sliding frame 26 is provided with a docking block 34. The docking block 34 is provided with a docking groove 35 suitable for the docking protrusion 57 to be moved and engaged. The docking block 34 is also provided with a telescopic groove 340. A spring 341 is connected in the telescopic groove 340. One end of the spring 341 is connected to a push plate 342. When the docking protrusion 57 is engaged in the docking groove 35, the push plate 342 and the movable plate 51 abut against each other. Each sliding frame 26 is equipped with a release assembly, which includes a hinge plate 261, a rotating shaft 262, a deflection cam 263, a gear, a shaft bracket 264, and a drive rod 265. The hinge plate 261 is connected to the locking block 9, the rotating shaft 262 is rotatably connected to the sliding frame 26, the deflection cam 263 is connected to the rotating shaft 262, and two hinge protrusions 266 are symmetrically provided on the deflection cam 263. A connecting rod 267 is hinged to the hinge protrusion 266, and the end of the connecting rod 267 away from the hinge protrusion 266 is connected to the hinge plate 261. The shaft bracket 264 is connected to the sliding frame 26, and the drive rod 265 is rotatably connected to the shaft bracket 264. The gear assembly includes a first bevel gear 2621 connected to the end of the rotating shaft 262 and a second bevel gear 268 connected to the drive rod 265. The first bevel gear 2621 and the second bevel gear 268 mesh with each other. A transmission component is provided between the drive rods 265 on two adjacent sliding frames 26. The transmission component includes a toothed tube 36 and a toothed rod 361. The toothed tube 36 is connected to the end of one of the drive rods 265, and the toothed rod 361 is connected to the end of the other drive rod 265. An input spline 37 is connected to the end of one of the drive rods 265 away from the other drive rod 265. Once the locking block 9 is engaged in the slot 10, if it is necessary to release the locking block 9 from the slot 10 or the mounting plate 5, simply rotate the drive rod 265, which in turn drives the rotating shaft 262 to rotate via the gear components, thereby driving the deflection cam 263 to rotate. When the hinge protrusion 266 on the deflection cam 263 rotates 90° around the axis of the rotating shaft 262, during this process, the hinge protrusion 266 pushes the hinge plate 261 via the connecting rod 267, thereby pushing the locking block 9 away from the slot 10, so that the mounting plate 5 can be removed from the mounting mechanism one or the mounting mechanism two.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A switchgear for easy assembly and disassembly of busbar trunking and circuit breakers, comprising a cabinet (1) with a switch door (2) on one side, characterized in that, Also includes: The extension track (3) extends from the inside of the cabinet (1) toward the opening and closing door (2) and is set in two groups. Each group of the extension track (3) consists of two tracks. The two groups of extension tracks (3) are arranged longitudinally symmetrically inside the cabinet (1). The two extension tracks (3) in the same group are located on the inner walls of both sides of the cabinet (1) and are on the same plane. The movable frame (4) slides on the extended track (3); Mounting plates (5) are at least two and are used to install busbar trunking and circuit breakers respectively. The mounting plates (5) are provided with slots (10). Mounting mechanism one and mounting mechanism two are provided on the movable frame (4), and each of the mounting mechanism one and mounting mechanism two is provided with a card block (9) suitable for engaging with the card slot (10). Both the first and second installation mechanisms are equipped with release components, which are used to drive the card block (9) away from the card slot (10) and release the card block (9) from the card slot (10).

2. The switchgear for quick assembly and disassembly of busbar trunking and circuit breakers according to claim 1, characterized in that, The movable frame (4) includes two transverse rods (41) and a connecting frame (42); wherein, the two transverse rods (41) slide on two sets of extension rails (3) respectively, the extension direction of the transverse rods (41) is perpendicular to the extension direction of the extension rails (3), and a limiting component is provided between the two ends of the transverse rods (41) and one of the two extension rails (3).

3. A switchgear for quick assembly and disassembly of busbar trunking and circuit breakers according to claim 2, characterized in that, A ratchet (11) is connected to the extension track (3), and the ratchet (11) is located on the end of the extension track (3) near the switch door (2). A sliding track (12) parallel to its extension direction is provided on the extension track (3). A sliding wheel (13) is provided on the sliding track (12). The sliding wheel (13) is connected to the end of the transverse rod (41) through the wheel frame (16). A lateral track (14) is also provided on the extension track (3). A lateral slider (15) is slidably connected in the lateral track (14). The lateral slider (15) is connected to the wheel frame (16).

4. A switchgear for quick assembly and disassembly of busbar trunking and circuit breakers according to claim 3, characterized in that, The limiting assembly includes an ear plate (17), a pressing block (18), a retracting column (19), a lifting tube (20), a bracket (21), a spring (22), and a lifting rod (23); wherein, the ear plate (17) is fixedly connected to the end of the transverse rod (41), the retracting column (19) is slidably connected to the ear plate (17), one end of the pressing block (18) is movably engaged with the ratchet rack (11), and the other end of the pressing block (18) is connected to the retracting column (19), the retracting column (19)... One end of the spring (22) extends into the interior of the lifting tube (20) away from the extrusion block (18) and is provided with a lifting protrusion (24). The retraction column (19) is slidably connected to the lifting tube (20). The first bracket (21) is connected to the end of the transverse rod (41). One end of the lifting rod (23) is slidably connected to the first bracket (21) longitudinally. The end of the lifting rod (23) is connected to the lifting tube (20). The two ends of the first spring (22) are respectively connected to the extrusion block (18) and the ear plate (17).

5. A switchgear for quick assembly and disassembly of busbar trunking and circuit breakers according to claim 1, characterized in that, The mounting plate (5) includes two movable plates (51), one of which is connected to an adjusting plate (6). One end of the adjusting plate (6) extends toward the other movable plate (51). The adjusting plate (6) has a fixed straight slot (61). The other movable plate (51) is connected to a ring plate (7) suitable for the sliding of the adjusting plate (6), has a through slot (52), and has a bolt plate (8). Both movable plates (51) are provided with mounting holes (53) suitable for bolt connection, the slots (10) are opened on both sides of the movable plates (51), and the movable plates (51) are connected with handles (54).

6. A switchgear for quick assembly and disassembly of busbar trunking and circuit breakers according to claim 5, characterized in that, The installation mechanism one and installation mechanism two have the same structure and both include a vertical rail (25) and a sliding frame (26). There are two vertical rails (25) and they are both fixedly connected to the horizontal rod (41). The vertical rails (25) are provided with positioning holes (27). There are two sliding frames (26). Each sliding frame (26) is connected to two sliding strips (28). The sliding strips (28) are slidably connected to the vertical rails (25). One of the sliding strips (28) on the sliding frame (26) is provided with a positioning bolt (29). One end of the positioning bolt (29) passes through the positioning hole (27) and is connected to the vertical rail (25). Two symmetrical moving slots (55) are provided on the sliding frame (26). The locking block (9) is slidably connected in the moving slot (55). A second spring (56) is connected in the moving slot (55). One end of the second spring (56) is connected to the locking block (9).

7. A switchgear for quick assembly and disassembly of busbar trunking and circuit breakers according to claim 6, characterized in that, A guide and an adjusting member are connected between the two sliding frames (26); The guide includes a guide sleeve (30) and a guide rod (31). The guide sleeve (30) is connected to one of the sliding frames (26), and the guide rod (31) is connected to the other sliding frame (26). The guide sleeve (30) and the guide rod (31) are slidably connected. The adjusting component includes a threaded sleeve (32) and a threaded rod (33). The threaded sleeve (32) is connected to one of the sliding frames (26), and the threaded rod (33) is connected to the other sliding frame (26). The threaded sleeve (32) and the threaded rod (33) are threadedly connected.

8. A switchgear for quick assembly and disassembly of busbar trunking and circuit breakers according to claim 6, characterized in that, The movable plate (51) is provided with a docking protrusion (57), and the sliding frame (26) is provided with a docking block (34). The docking block (34) is provided with a docking groove (35) suitable for the docking protrusion (57) to engage. The docking block (34) is also provided with a telescopic groove (340). A spring three (341) is connected in the telescopic groove (340). One end of the spring three (341) is connected to a push plate (342). When the docking protrusion (57) engages in the docking groove (35), the push plate (342) and the movable plate (51) abut against each other.

9. A switchgear for quick assembly and disassembly of busbar trunking and circuit breakers according to claim 6, characterized in that, Each of the sliding frames (26) is provided with a release assembly, which includes a hinge plate (261), a rotating shaft (262), a deflection cam (263), a gear, a shaft bracket (264), and a drive rod (265). The hinge plate (261) is connected to the locking block (9). The rotating shaft (262) is rotatably connected to the sliding frame (26). The deflection cam (263) is connected to the rotating shaft (262). The deflection cam (263) is symmetrically provided with two hinge protrusions (266). A connecting rod (267) is hinged to the hinge protrusion (266). The end of the connecting rod (267) away from the hinge protrusion (266) is connected to the hinge plate (261). The shaft bracket (264) is connected to the sliding frame (26). The drive rod (265) is rotatably connected to the shaft bracket (264).

10. A switchgear for quick assembly and disassembly of busbar trunking and circuit breakers according to claim 9, characterized in that, The gear assembly includes a first bevel gear (2621) connected to the end of the rotating shaft (262) and a second bevel gear (268) connected to the drive rod (265), and the first bevel gear (2621) and the second bevel gear (268) mesh with each other. A transmission component is provided between the drive rods (265) on two adjacent sliding frames (26). The transmission component includes a toothed tube (36) and a toothed rod (361). The toothed tube (36) is connected to the end of one of its drive rods (265), and the toothed rod (361) is connected to the end of the other drive rod (265). An input spline (37) is connected to the end of one of the drive rods (265) away from the other drive rod (265).

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