Low-voltage power distribution cabinet with three-dimensional bus bridge arranged in cabinet body and use method of low-voltage power distribution cabinet

Abstract

The invention belongs to the field of low-voltage power distribution cabinets, particularly relates to a low-voltage power distribution cabinet with a three-dimensional bus bridge arranged in a cabinet body and a using method, and aims to solve the problems that in an existing traditional low-voltage power distribution cabinet, bus duct installation and wiring operation is often tedious, safety is low, the electric device installation mode is also often not flexible enough, and the operation space is limited. According to the scheme, the power distribution cabinet comprises a power distribution cabinet body, a bus duct is fixedly embedded in the top of the power distribution cabinet body, a bus bridge plate is fixedly installed on the top of the power distribution cabinet body, and an installation frame with installation holes is installed on one side of the bus bridge plate; according to the power distribution cabinet, by means of the design of the protection plate, mistaken wiring touch is effectively prevented, and the safety of wiring operation in the power distribution cabinet is ensured. The special conflict design of the protection plate and the power distribution cabinet main body and the braking effect of the side baffle plate jointly construct a multiple safety protection mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage power distribution cabinets, and in particular to a low-voltage power distribution cabinet with a three-dimensional bus bridge arranged in a cabinet body and a use method thereof. Background Art

[0002] In traditional low-voltage distribution cabinets, busbar installation and wiring are often cumbersome and unsafe. Due to a lack of effective protective measures, accidental contact during wiring can easily lead to safety hazards. Furthermore, traditional distribution cabinets often lack flexibility in the installation of electrical components, resulting in limited operating space and difficulty meeting the requirements of modern electrical systems for efficiency, safety, and convenience.

[0003] Furthermore, traditional distribution cabinets also have shortcomings in terms of space utilization and structural stability. Irrational spatial layout results in bulky distribution cabinets that fail to fully utilize the internal space, while insufficient structural stability can affect the distribution cabinet's load-bearing capacity and service life.

[0004] Therefore, it is necessary to design a new type of low-voltage distribution cabinet to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem in the prior art that the installation and wiring operations of the bus duct in traditional low-voltage distribution cabinets are often cumbersome and less safe. Due to the lack of effective protective measures, safety hazards such as accidental touch are prone to occur during the wiring process. At the same time, the installation method of electrical components in traditional distribution cabinets is often not flexible enough, and the operating space is limited, which makes it difficult to meet the requirements of modern electrical systems for efficiency, safety and convenience. In addition, traditional distribution cabinets also have certain deficiencies in space utilization and structural stability. The unreasonable spatial layout leads to the distribution cabinet being bulky but failing to fully utilize the internal space; the insufficient structural stability may affect the load-bearing capacity and service life of the distribution cabinet. A low-voltage distribution cabinet with a three-dimensional bus bridge frame arranged in the cabinet and a method for use are proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A low-voltage power distribution cabinet with a three-dimensional bus bridge arranged in the cabinet body, comprising a power distribution cabinet body, a bus duct fixedly embedded on the top of the power distribution cabinet body, a bus bridge plate fixedly installed on the top of the power distribution cabinet body, and a mounting frame with mounting holes installed on one side of the bus bridge plate; A fixed partition is vertically fixed to the inner wall of the power distribution cabinet body to divide the space inside the cabinet into upper and lower areas, and the bus duct is located in the area above the fixed partition; The protection assembly includes a second rotating shaft slidably engaged in the elliptical groove of the fixed partition, the second rotating shaft is fixedly connected to the mounting riser, and the top of the mounting riser is fixedly mounted with a protection plate; The mounting assembly comprises two bottom mounting bars symmetrically fixed to the bottom of the power distribution cabinet body, the bottom mounting bars being slidably connected to the upper limit plates, and the two upper limit plates jointly fixing the mounting plate; The protective plate covers the bus duct connection area in the closed state, and the mounting plate is laterally positioned by plugging the second pin hole of the bottom mounting bar and the first pin hole of the upper limit plate through the pin shaft.

[0007] In a possible design, a protective cover is detachably mounted on one side of the busbar bridge plate, and a cabinet door is hinged on the open side of the distribution cabinet body, and the cabinet door is provided with ventilation holes and a door handle.

[0008] In one possible design, the protection component further includes: A first rectangular groove is provided in the fixed partition, a first strip hole is provided at the bottom of the first rectangular groove, a second rectangular groove is provided on one inner wall of the first rectangular groove, the bottom of the second rectangular groove is connected to the first strip hole, and a second strip hole is provided on one inner wall of the second rectangular groove; A side baffle is slidably passed through the first strip-shaped hole, one end of which is in contact with the mounting vertical plate, and the other end is connected to the inner wall of the first rectangular groove via a tension spring. A toggle groove is provided on one side of the bottom of the side baffle to facilitate the resetting of the side baffle; The fixed outer rod is vertically fixed to the top of the elliptical groove, and a third rectangular vertical hole is opened at the bottom thereof. The upper half of the fixed outer rod is provided with a strip vertical hole, and the top of the third rectangular vertical hole is connected to the bottom of the strip vertical hole.

[0009] In a possible design, the side baffle is fixedly connected to a strip-shaped slide, and the strip-shaped slide is provided with a first rectangular vertical hole; The inner rod slides through the third rectangular vertical hole, and a horizontal plate is fixed on the top of the inner rod. A compression spring is provided between the horizontal plate and the inner top wall of the fixed outer rod; Wherein, when the inner rod is engaged with the first rectangular vertical hole, the side baffle is locked to the mounting vertical plate.

[0010] In a possible design, the second rotating shaft defines a second rectangular vertical hole, and the fixed outer rod slides through the second rectangular vertical hole; When the protective plate moves upward, the fixed outer rod is inserted into the second rectangular vertical hole and the spring is compressed, so that the inner rod is separated from the first rectangular vertical hole.

[0011] In one possible design, the mounting assembly further includes: Fixed rectangular plates are symmetrically fixed on both sides of the mounting plate; The side mounting strips are fixed to the inner wall of the power distribution cabinet body, and the fixed rectangular plates are fixedly connected to the side mounting strips by screws.

[0012] In a possible design, the two upper limit plates are fixedly connected by fastening screws passing through threaded holes; Among them, after loosening the fastening screws and the screws fixing the rectangular plate, the mounting plate can be slid laterally along the bottom mounting strip to adjust the position.

[0013] In one possible design, it also includes: The brake assembly includes a first rotating shaft that rotates and passes through the fixed partition, wherein one end of the first rotating shaft is fixed with a limit block and the other end is fixed with an operating plate; When the limit block rotates to a vertical position, it contacts the side wall of the mounting plate to limit its movement.

[0014] How to use the low-voltage distribution cabinet, including: S1. Opening the protective plate: vertically move the protective plate upward so that the fixed outer rod engages with the second rectangular vertical hole, the inner rod disengages from the first rectangular vertical hole, and the side baffle moves laterally into the second rectangular groove under the action of the tension spring; move the second rotating shaft downward to disengage from the fixed outer rod, and rotate to open the protective plate; S2. Steps for adjusting the mounting plate: Rotate the operating plate to make the limit block horizontal, remove the screws fixing the rectangular plate and the fastening screws, slide the mounting plate horizontally to the target position, insert the pin to lock it, and then tighten the screws.

[0015] In this application, when in use, the bus duct is fixedly installed on the top of the distribution cabinet body, and the space inside the distribution cabinet body is divided into two upper and lower spaces by a fixed partition. At this time, the wiring operation can be completed through the bus duct. After the wiring is completed, in order to ensure that the wiring will not be accidentally touched, the device can be protected by a protective plate to ensure the safety of the wiring; When the wiring needs to be changed, the top of the protective plate conflicts with the inner wall of one side of the distribution cabinet body and cannot be opened directly. It is necessary to know how to open the protective plate before opening it. The specific operation is to move the protective plate vertically upward, and the protective plate drives the installation vertical plate to move upward. The installation vertical plate drives the second rotating shafts on both sides to move upward. The second rotating shaft is opened in the middle of the oval groove and moves upward. The second rotating shaft moves to the top inner wall of the oval groove; When the second lever is engaged, the cam is engaged with the first lever and the second lever is engaged with the first lever, and the cam is engaged with the first lever. Then, the second rotating shaft is moved downward as a whole, and the second rotating shaft moves downward along the fixed outer rod. When the second rotating shaft moves to the lowest point, the second rotating shaft is separated from the fixed outer rod. At this time, the upper part of the protective plate no longer conflicts with the inner wall of one side of the power distribution cabinet body. The protective plate can be rotated as a whole, and then one side of the protective plate can be opened to adjust its internal wiring. The electrical components are installed on one side of the mounting plate, and the wiring is carried out through the space between the back of the mounting plate and the inner wall of the distribution cabinet body. When the wires on the mounting plate need to be wired, the operation plate can be rotated, and the operation plate drives the first rotating shaft to rotate, and the first rotating shaft drives the limit block to rotate. At this time, the limit block rotates to a horizontal state and no longer interferes with the mounting plate. At this time, the screws on the fixed rectangular plate can be removed to release the braking state of the mounting plate. At this time, the mounting plate can drive the two upper limit plates to move horizontally, and the upper limit plates slide on the bottom mounting bar to ensure the stability of the movement of the mounting plate. After the pin shaft is inserted into the second pin hole and the first pin hole, the upper limit plate can be limited to the appropriate position of the bottom mounting bar, and the two upper limit plates can be fixed together by tightening the screws, and then the mounting plate can be adjusted forward and backward to increase the operating space.

[0016] Beneficial effects: The protective plate design effectively prevents accidental contact with wiring, ensuring the safety of wiring operations within the distribution cabinet. The special design of the protective plate and the distribution cabinet body, as well as the braking effect of the side baffles, jointly establish a multi-layered safety protection mechanism.

[0017] The protective plate can be easily opened by simply moving it vertically upward and rotating it, greatly facilitating wiring and adjustment operations. The forward and backward adjustment function of the mounting plate also enhances operational flexibility, making the installation and wiring of electrical components more convenient.

[0018] The design of the mounting assembly allows electrical components to be adjusted forward and backward, fully utilizing the space inside the distribution cabinet and increasing operating space. In addition, the design of the busbar bridge plate and mounting frame also optimizes the spatial layout, making the overall structure of the distribution cabinet more compact and reasonable.

[0019] The structural stability of the power distribution cabinet is ensured by the interlocking and limiting design of multiple components, such as the interlocking of the second rotating shaft with the elliptical groove and the interlocking of the inner rod with the first rectangular vertical hole. This design not only improves the load-bearing capacity of the power distribution cabinet, but also extends its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional structural diagram of a low-voltage power distribution cabinet with a three-dimensional busbar bridge arranged inside the cabinet, as proposed by the present invention; Figure 2This is a schematic diagram of the three-dimensional structure of a low-voltage power distribution cabinet with a three-dimensional bus bridge arranged inside the cabinet, as viewed from a second perspective, proposed by the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of a low-voltage power distribution cabinet with a three-dimensional bus bridge installed in the cabinet when it is unfolded; Figure 4 This is an exploded view of a busbar bridge plate and a protective cover in a low-voltage distribution cabinet with a three-dimensional busbar bridge provided in the cabinet, as proposed by the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of a low-voltage power distribution cabinet with a three-dimensional bus bridge provided in the cabinet, when the protective plate is unfolded; Figure 6 This is a three-dimensional structural diagram of the bottom mounting strip and mounting plate in a low-voltage power distribution cabinet with a three-dimensional busbar bridge provided in the cabinet, as proposed by the present invention; Figure 7 This is an exploded view of the bottom mounting strip and mounting plate of a low-voltage distribution cabinet with a three-dimensional busbar bridge provided in the cabinet, as proposed by the present invention; Figure 8 This is an exploded view of the protective plate and fixed partition in a low-voltage distribution cabinet with a three-dimensional bus bridge provided in the cabinet, as proposed by the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of a fixed partition and a first rectangular groove in a low-voltage distribution cabinet with a three-dimensional bus bridge provided in the cabinet proposed by the present invention; Figure 10 This is an exploded view of a low-voltage distribution cabinet with a three-dimensional busbar bridge arranged inside the cabinet body proposed by the present invention.

[0021] Figure: 1. Distribution cabinet body; 2. Busbar bridge plate; 3. Mounting frame; 4. Ventilation hole; 5. Protective cover; 6. Cabinet door; 7. Door handle; 8. Busbar duct; 9. Protective plate; 10. Side mounting strip; 11. Mounting hole; 12. Fixed partition; 13. Bottom mounting strip; 14. Mounting plate; 15. Upper limit plate; 16. Fixed rectangular plate; 17. First latch hole; 18. Threaded hole; 19. Second latch hole; 20. Pin shaft; 21. Fastening screw; 22. Mounting vertical plate; 23. Side Side baffle; 24, first rectangular groove; 25, operating panel; 26, first rotating shaft; 27, limit block; 28, second strip hole; 29, elliptical groove; 30, first strip hole; 31, second rectangular groove; 32, second rotating shaft; 33, strip vertical hole; 34, first rectangular vertical hole; 35, toggle groove; 36, tension spring; 37, strip slide; 38, inner rod; 39, horizontal plate; 40, fixed outer rod; 41, compression spring; 42, third rectangular vertical hole; 43, second rectangular vertical hole. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] In one embodiment: Figure 1-10 , a specific implementation of a power distribution cabinet is as follows: The low-voltage distribution cabinet body 1 has an open side with a hinged door 6, which is equipped with a door handle 7 and multiple ventilation holes 4. A bus duct 8 is fixedly embedded on one side of the top of the distribution cabinet body 1, and a bus bridge plate 2 is fixedly installed on the top. The bus bridge plate 2 is connected to the wall via a mounting bracket 3 with multiple mounting holes 11 on one side, and a protective cover 5 is removably installed on the other side. A fixed partition 12 is fixedly installed on the inner wall of one side of the distribution cabinet body 1, dividing the cabinet space into upper and lower parts. Below the fixed partition 12 is a mounting assembly for installing electrical components.

[0024] The mounting assembly includes two symmetrical bottom mounting bars 13 fixed to the bottom inner wall of the power distribution cabinet body 1. Each bottom mounting bar 13 is provided with upper and lower upper limit plates 15. The two upper upper limit plates 15 are fixedly connected to the mounting plate 14 on one side, and fixed rectangular plates 16 are fixedly attached to the mounting plate 14 on both sides. The fixed rectangular plates 16 are fixedly connected to the side mounting bars 10 on the inner wall of the power distribution cabinet body 1 via screws. Multiple second latch holes 19 are defined in the top of the bottom mounting bar 13. A first latch hole 17 is defined within the upper limit plates 15. Pins 20 are inserted into the first and second latch holes 17, 19 for lateral positioning. The two upper limit plates 15 are secured longitudinally by fastening screws 21 extending through threaded holes 18.

[0025] A first rectangular groove 24 is defined at the top of one side of the fixed partition 12, housing a protective assembly. The protective assembly comprises two elliptical grooves 29 formed on the inner walls of the mounting plate 14 on either side. A second rotating shaft 32 is movably engaged within the elliptical grooves 29. The two second rotating shafts 32 are fixedly connected to the mounting riser 22, and the protective plate 9 is fixedly mounted on the top of the mounting riser 22. A first strip-shaped hole 30 is defined on the bottom inner wall of the first rectangular groove 24. A second rectangular groove 31 is defined on one inner wall. The bottom of the second rectangular groove 31 communicates with the first strip-shaped hole 30, while a second strip-shaped hole 28 is defined on the inner wall on the other side, extending to the elliptical groove 29. The side baffle 23 slides through the first strip-shaped hole 30 and the second rectangular groove 31. One side of the side baffle 23 abuts against the mounting riser 22, while a tension spring 36 is disposed between the other side and the inner wall of the second rectangular groove 31. A strip-shaped slide 37 is fixed to one side of the side baffle 23 . The strip-shaped slide 37 is engaged in the second strip-shaped hole 28 and defines a first rectangular vertical hole 34 . A toggle groove 35 is defined at the bottom of the side baffle 23 .

[0026] A second rectangular vertical hole 43 is defined within the second rotating shaft 32. A fixed outer rod 40 is fixedly mounted on the top inner wall of the elliptical slot 29. The upper portion of the fixed outer rod 40 defines the strip-shaped vertical hole 33, while the lower portion defines a third rectangular vertical hole 42. The inner rod 38 slides through the third rectangular vertical hole 42. A horizontal plate 39 is secured to the top of the inner rod 38, with a compression spring 41 positioned between the top of the horizontal plate 39 and the top inner wall of the strip-shaped vertical hole 33. The fixed outer rod 40 engages with the second rectangular vertical hole 43, while the inner rod 38 engages with the first rectangular vertical hole 34 to achieve braking.

[0027] When wiring is required, the bus duct 8 is fixed to the top of the distribution cabinet body 1 and the wiring is completed after the space is divided by the fixed partition 12. After the wiring is completed, the protective plate 9 maintains contact with the inner wall of the distribution cabinet body 1 through the connection between the mounting riser 22 and the second rotating shaft 32. The side baffle 23 maintains contact with the mounting riser 22 under the action of the tension spring 36, thus achieving the protective function.

[0028] When wiring changes are required, the protective plate 9 is moved upward vertically, driving the mounting riser 22 and the second rotating shaft 32 upward. When the second rotating shaft 32 moves along the elliptical groove 29 to the top inner wall, the fixed outer rod 40 engages with the second rectangular vertical hole 43. The inner rod 38, under the action of the compression spring 41, moves upward and disengages from the first rectangular vertical hole 34, releasing the brake on the strip slide 37. The side guard 23, under the action of the tension spring 36, moves laterally, moving away from the side of the mounting riser 22 and entering the second rectangular groove 31, releasing the interference with the mounting riser 22. The second rotating shaft 32 is then moved downward to its lowest point to disengage from the fixed outer rod 40, releasing the interference between the protective plate 9 and the inner wall of the distribution cabinet body 1. The protective plate 9 can then be rotated to adjust the wiring.

[0029] How to use the low-voltage distribution cabinet, including: S1. Opening the protective plate: Move the protective plate 9 upward vertically so that the fixed outer rod 40 engages with the second rectangular vertical hole 43, the inner rod 38 disengages from the first rectangular vertical hole 34, and the side baffle 23 moves laterally into the second rectangular groove 31 under the action of the tension spring 36; move the second rotating shaft 32 downward to disengage from the fixed outer rod 42, and rotate to open the protective plate 9; S2. Adjust the mounting plate: Rotate the operating plate 25 to make the limit block 27 horizontal, remove the screws fixing the rectangular plate 16 and the fastening screws 21, slide the mounting plate 14 horizontally to the target position, insert the pin 20 to lock it, and then fasten the screws.

[0030] This application can be used in the field of low-voltage distribution cabinets, and can also be used in other fields applicable to this application.

[0031] In another embodiment: Figure 1-10A low-voltage distribution cabinet with a three-dimensional busbar bridge arranged in the cabinet body is used in the field of low-voltage power distribution. A brake assembly is arranged inside the fixed partition 12, which includes a first rotating shaft 26 that rotates through it. A limit block 27 is fixedly installed at one end of the first rotating shaft 26. The lower half of the limit block 27 is in conflict with one side of the mounting plate 14 to achieve limit, and an operating panel 25 is fixedly installed at the other end.

[0032] When wiring the wires on the mounting plate 14 is required, the operating plate 25 is rotated to rotate the first rotating shaft 26 and the limit block 27, so that the limit block 27 is in a horizontal state and no longer interferes with the mounting plate 14. After removing the screws on the fixed rectangular plate 16, the mounting plate 14 can drive the upper limit plate 15 to move laterally along the bottom mounting bar 13. The pin 20 is inserted into the second latch hole 19 and the first latch hole 17 to achieve positioning. The fastening screw 21 is inserted through the threaded holes 18 of the two upper limit plates 15 to secure them, thereby completing the front and rear adjustment of the mounting plate 14.

[0033] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A low-voltage distribution cabinet with a three-dimensional busbar bridge arranged in the cabinet, characterized in that: include: A power distribution cabinet body (1), wherein a bus duct (8) is fixedly embedded on the top of the power distribution cabinet body (1), a bus bridge plate (2) is fixedly installed on the top of the power distribution cabinet body (1), and a mounting frame (3) with mounting holes (11) is installed on one side of the bus bridge plate (2); A fixed partition (12) is vertically fixed to the inner wall of the power distribution cabinet body (1) to separate the space inside the cabinet into upper and lower areas, and the bus duct (8) is located in the area above the fixed partition (12); A protective assembly includes a second rotating shaft (32) slidably engaged in the elliptical groove (29) of the fixed partition (12), the second rotating shaft (32) is fixedly connected to the mounting vertical plate (22), and the top of the mounting vertical plate (22) is fixedly mounted with a protective plate (9); The mounting assembly comprises two bottom mounting bars (13) symmetrically fixed to the bottom of the power distribution cabinet body (1), wherein the bottom mounting bars (13) are slidably connected to an upper limit plate (15), and the two upper limit plates (15) jointly fix the mounting plate (14).

2. A low-voltage power distribution cabinet with a three-dimensional bus bridge arranged in the cabinet according to claim 1, characterized in that: A protective cover (5) is detachably mounted on one side of the busbar bridge plate (2); a cabinet door (6) is hingedly mounted on the opening side of the power distribution cabinet body (1); and the cabinet door (6) is provided with a ventilation hole (4) and a door handle (7).

3. The low-voltage power distribution cabinet with a three-dimensional bus bridge installed in the cabinet according to claim 1, characterized in that: The protection component also includes: A first rectangular groove (24) is provided in the fixed partition (12), a first strip hole (30) is provided at the bottom of the first rectangular groove (24), a second rectangular groove (31) is provided on one inner wall of the first rectangular groove (24), the bottom of the second rectangular groove (31) is connected to the first strip hole (30), and a second strip hole (28) is provided on one inner wall of the second rectangular groove (31); A side baffle (23) is slidably passed through the first strip hole (30), one end of which contacts the mounting vertical plate (22), and the other end is connected to the inner wall of the first rectangular groove (24) via a tension spring (36), and a toggle groove (35) is provided on one side of the bottom of the side baffle (23) for facilitating the resetting of the side baffle (23); A fixed outer rod (40) is vertically fixed to the top of the elliptical groove (29), and a third rectangular vertical hole (42) is opened at the bottom thereof. A strip-shaped vertical hole (33) is opened at the upper half of the fixed outer rod (40), and the top of the third rectangular vertical hole (42) is connected to the bottom of the strip-shaped vertical hole (33).

4. A low-voltage power distribution cabinet with a three-dimensional bus bridge arranged in the cabinet according to claim 3, characterized in that: The side baffle (23) is fixedly connected to the strip slide (37), and the strip slide (37) is provided with a first rectangular vertical hole (34); It also includes an inner rod (38) that slides through the third rectangular vertical hole (42), a horizontal plate (39) being fixed on the top of the inner rod (38), and a compression spring (41) being provided between the horizontal plate (39) and the inner top wall of the fixed outer rod (40); When the inner rod (38) is engaged with the first rectangular vertical hole (34), the side baffle (23) locks the mounting vertical plate (22).

5. A low-voltage power distribution cabinet with a three-dimensional bus bridge arranged in the cabinet according to claim 4, characterized in that: The second rotating shaft (32) defines a second rectangular vertical hole (43), and the fixed outer rod (40) slides through the second rectangular vertical hole (43); When the protective plate (9) moves upward, the fixed outer rod (40) is inserted into the second rectangular vertical hole (43) and compresses the spring (41), so that the inner rod (38) is separated from the first rectangular vertical hole (34).

6. The low-voltage power distribution cabinet with a three-dimensional bus bridge installed in the cabinet according to claim 1, characterized in that: The installation assembly also includes: A fixed rectangular plate (16) is symmetrically fixed on both sides of the mounting plate (14); The side mounting strip (10) is fixed to the inner wall of the power distribution cabinet body (1), and the fixed rectangular plate (16) is fixedly connected to the side mounting strip (10) by screws.

7. A low-voltage power distribution cabinet with a three-dimensional bus bridge installed in the cabinet according to claim 6, characterized in that: The two upper limit plates (15) are fixedly connected by fastening screws (21) passing through the threaded holes (18); After loosening the fastening screw (21) and the screws fixing the rectangular plate (16), the mounting plate (14) can be slid laterally along the bottom mounting strip (13) to adjust the position.

8. The low-voltage power distribution cabinet with a three-dimensional bus bridge installed in the cabinet according to claim 1, characterized in that: Also includes: The brake assembly comprises a first rotating shaft (26) that rotates and passes through the fixed partition (12), wherein one end of the first rotating shaft (26) is fixed with a limit block (27) and the other end is fixed with an operating plate (25); When the limit block (27) is rotated to a vertical position, it contacts the side wall of the mounting plate (14), thereby limiting its movement.

9. A method for using the low-voltage distribution cabinet according to any one of claims 1 to 8, characterized in that: include: S1. Step of opening the protective plate: vertically move the protective plate (9) upward so that the fixed outer rod (40) is engaged with the second rectangular vertical hole (43), the inner rod (38) is disengaged from the first rectangular vertical hole (34), and the side baffle (23) is laterally moved into the second rectangular groove (31) under the action of the tension spring (36); move the second rotating shaft (32) downward to disengage the fixed outer rod (40), and rotate to open the protective plate (9); S2. Adjust the mounting plate: Rotate the operating plate (25) to make the limit block (27) horizontal, remove the screws fixing the rectangular plate (16) and the fastening screws (21), slide the mounting plate (14) horizontally to the target position, insert the pin (20) to lock it, and then fasten the screws.

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