Power distribution capacity increasing device for power distribution engineering

Abstract

The utility model relates to the technical field of power distribution engineering, in particular to a power distribution capacity increasing device for power distribution engineering, which comprises a capacitor cabinet, a cabinet door is mounted on the front side of the capacitor cabinet, a damping box is slidably connected to the inner wall of the capacitor cabinet, a mounting box is slidably connected to the inner wall of the damping box, and a power distribution capacity increasing device is arranged above the mounting box. The installation box is provided with an installation assembly facilitating installation of the power distribution capacity increasing device, the capacitor cabinet is provided with a lifting assembly capable of adjusting the power distribution capacity increasing device to a proper height, and under the cooperation of the installation assembly and the lifting assembly, the power distribution capacity increasing device can be prevented from colliding with the capacitor cabinet in the hoisting process to damage equipment. And meanwhile, the problem of high mounting difficulty in a hoisting state is solved, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of power distribution engineering technology, specifically a power distribution capacity expansion device for power distribution engineering. Background Technology

[0002] With the development of economy and technology, the improvement of residents' quality of life, and the rapid increase in household electricity load, many substations have reached the critical value of electricity load. Upgrading and expanding the capacity of existing substations and transferring loads have become urgent. Distribution capacity expansion refers to the situation where, during the production and operation process, the electricity user's original application for electricity capacity can no longer meet the needs of production and operation due to the expansion of production capacity demand, and therefore must apply for an increase in capacity on the basis of the original.

[0003] Because many existing substations are located in densely populated residential areas, and due to limitations such as the inability to expand existing sites, limited land area, and extremely short power outage cycles, capacity expansion is typically achieved by installing multiple small capacitor banks onto the side walls of the substation cabinet. These capacitor banks contain distribution expansion capacitors. Due to the significant weight of these expansion capacitors, installation often relies on hoisting equipment. However, the position of the expansion capacitors is unstable during hoisting, making installation difficult and increasing the risk of collision with the capacitor bank cabinet, potentially damaging the equipment. To ensure safe and efficient installation of the expansion capacitors within the capacitor bank cabinet, guaranteeing work efficiency and avoiding equipment damage, we propose a distribution capacity expansion device for power distribution projects. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a power distribution capacity expansion device for power distribution engineering, which safely and efficiently installs the power distribution expansion device into the capacitor cabinet, ensuring working efficiency and avoiding damage to the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A power distribution capacity expansion device for power distribution engineering includes a capacitor cabinet, a cabinet door installed on the front side of the capacitor cabinet, a shock-absorbing box slidably connected to the inner wall of the capacitor cabinet, an installation box slidably connected to the inner wall of the shock-absorbing box, a power distribution expansion container arranged above the installation box, an installation component for facilitating the installation of the power distribution expansion container installed on the installation box, and a lifting component for adjusting the power distribution expansion container to a suitable height installed on the capacitor cabinet.

[0007] The installation assembly includes an installation cylinder, which is fixedly installed on the inner wall of the installation box. A connecting rod is fixedly connected to the output end of the installation cylinder. A first sliding opening matching the connecting rod is opened on the top of the installation box. The connecting rod is slidably connected to the first sliding opening. An installation toothed plate is fixedly connected to the top of the connecting rod. The bottom of the installation toothed plate is slidably connected to the top of the installation box. The power distribution booster is installed on the top of the installation toothed plate. A fixing mechanism for fixing the position of the power distribution booster is installed on the installation box.

[0008] Preferably, the fixing mechanism includes two sets of drive gears, which are rotatably connected to the top of the mounting box and mesh with the mounting gear plate. A second rotating rod is fixedly connected to the top of the drive gear, and a driving bevel gear is fixedly sleeved on the outside of the second rotating rod. A rotating sleeve is rotatably sleeved on the outside of the second rotating rod, and a rotating bevel gear is fixedly sleeved on the outside of the rotating sleeve. Two sets of first rotating rods are rotatably connected to the top of the mounting box, and a driven bevel gear is fixedly sleeved on the outside of the first rotating rod. Fixed gears are fixedly connected to the top of the rotating sleeve and the second rotating rod. Several sets of mounting blocks are fixedly connected to the top of the mounting box. A transmission rod is rotatably passed through the mounting block. Transmission bevel gears are fixedly connected to the front and rear ends of the transmission rod. The front transmission bevel gear meshes with the driving bevel gear and the rotating bevel gear, and the rear transmission bevel gear meshes with the driven bevel gear. A fixed gear plate is slidably connected to the top of the mounting block and meshes with the fixed gear. A fixed plate is slidably connected to the top of the fixed gear plate, and a buffer mechanism is installed on the fixed gear plate.

[0009] Preferably, the buffer mechanism includes several sets of buffer springs, the buffer springs are fixedly connected to the side of the fixed plate away from the power distribution capacitor, the end of the buffer spring away from the fixed plate is fixedly connected to the fixed toothed plate, and several sets of telescopic rods are fixedly connected to the side of the fixed plate away from the power distribution capacitor, the end of the telescopic rod away from the fixed plate is fixedly connected to the fixed toothed plate.

[0010] Preferably, the lifting assembly includes a lifting cylinder, which is fixedly installed on the top of the inner cavity of the capacitor cabinet. The output end of the lifting cylinder is fixedly connected to a mounting cover. Two sets of connecting covers are fixedly connected to the bottom of the mounting cover. The bottom of the connecting cover is fixedly connected to the top of the mounting box. The shock-absorbing box is equipped with a positioning mechanism to fix the power distribution capacitor at a certain height.

[0011] Preferably, the positioning mechanism includes a positioning cover, on which two sets of positioning plates are slidably connected. Positioning toothed plates are fixedly connected to opposite sides of the two sets of positioning plates. An installation rod is rotatably passed through the positioning cover. A positioning gear is fixedly connected to the top of the installation rod. The positioning gear meshes with the positioning toothed plates. Several sets of slots matching the positioning plates are opened on the inner wall of the capacitor cabinet.

[0012] Preferably, a number of shock-absorbing springs and damping shock absorbers are fixedly connected to the bottom of the mounting box. The shock-absorbing springs are fitted over the damping shock absorbers, and the bottoms of the shock-absorbing springs and damping shock absorbers are fixedly connected to the shock-absorbing box.

[0013] Preferably, the bottom of the mounting rod is fixedly connected to a rotating handle, the bottom of the positioning cover is provided with a positioning pin that can fix the position of the rotating handle, and the bottom of the positioning cover is fixedly connected to several sets of support plates.

[0014] Preferably, the connecting cover has a second sliding opening that matches the mounting toothed plate, the mounting toothed plate is slidably connected to the second sliding opening, and the connecting cover has a through hole that matches the fixing plate.

[0015] Preferably, the capacitor bank has several sets of heat dissipation holes.

[0016] Preferably, the capacitor bank is provided with shock-absorbing rubber pads at the bottom and a rain cover at the top.

[0017] Beneficial effects

[0018] This utility model provides a power distribution capacity expansion device for power distribution engineering. Compared with the prior art, it has the following advantages:

[0019] This is a power distribution capacity expansion device for power distribution engineering. It controls an installation cylinder to move an installation toothed plate out of the capacitor bank. A hoisting tool places the power distribution expansion unit above the installation toothed plate. The installation cylinder then moves the installation toothed plate backward, pulling the power distribution expansion unit into the capacitor bank. Simultaneously, a fixing plate moves closer to the power distribution expansion unit. When the installation toothed plate is fully inside the capacitor bank, the fixing plate presses against the side wall of the power distribution expansion unit, thus fixing its position. A lifting cylinder moves the power distribution expansion unit to a suitable height. The installation rod is manually rotated, and the positioning toothed plate moves the two sets of positioning plates away from each other, inserting them into slots on the inner wall of the capacitor bank. This positions the power distribution expansion unit. After positioning, wiring can be installed. This method prevents the power distribution expansion unit from colliding with the capacitor bank during hoisting, thus preventing equipment damage. It also solves the problem of difficult installation during hoisting and improves work efficiency. Attached Figure Description

[0020] Figure 1 This is a front view structural diagram of the main body of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the capacitor cabinet of this utility model;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the mounting component of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the connecting cover of this utility model;

[0024] Figure 5 This is an exploded view of the installation components of this utility model;

[0025] Figure 6 For the present utility model Figure 5 Enlarged schematic diagram of the structure at point A in the middle;

[0026] Figure 7 This is a schematic diagram of the connection structure between the second rotating rod and the rotating sleeve of this utility model.

[0027] In the diagram: 1. Capacitor cabinet; 2. Cabinet door; 3. Lifting cylinder; 4. Mounting cover; 5. Power distribution capacitor; 6. Connecting cover; 7. Mounting box; 8. Vibration damping box; 9. Positioning cover; 10. Support plate; 11. Mounting gear plate; 12. Fixing plate; 13. Fixing gear plate; 14. Mounting block; 15. Positioning gear; 16. Connecting rod; 17. Mounting cylinder; 18. Vibration damping spring; 19. Mounting rod; 20. Damping shock absorber; 21. Transmission rod; 22. Fixing gear; 23. First rotating rod; 24. Driven bevel gear; 25. Drive gear; 26. Second rotating rod; 27. Telescopic rod; 28. Buffer spring; 29. ​​Positioning gear plate; 30. Positioning plate; 31. Transmission bevel gear; 32. Driven bevel gear; 33. Rotating sleeve; 34. Rotating bevel gear. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-7This utility model provides a technical solution: a power distribution capacity expansion device for power distribution engineering, including a capacitor cabinet 1, a cabinet door 2 installed on the front side of the capacitor cabinet 1, a shock-absorbing box 8 slidably connected to the inner wall of the capacitor cabinet 1, an installation box 7 slidably connected to the inner wall of the shock-absorbing box 8, a power distribution expansion container 5 arranged on the top of the installation box 7, an installation component for easy installation of the power distribution expansion container 5 installed on the installation box 7, and a lifting component for adjusting the power distribution expansion container 5 to a suitable height installed on the capacitor cabinet 1; the installation component includes an installation cylinder 17, which is fixedly installed on the inner wall of the installation box 7, and a connecting rod 16 is fixedly connected to the output end of the installation cylinder 17; a first sliding opening matching the connecting rod 16 is opened on the top of the installation box 7, the connecting rod 16 is slidably connected to the first sliding opening, an installation toothed plate 11 is fixedly connected to the top of the connecting rod 16, the bottom of the installation toothed plate 11 is slidably connected to the top of the installation box 7, the power distribution expansion container 5 is installed on the top of the installation toothed plate 11, and a fixing mechanism for fixing the position of the power distribution expansion container 5 is installed on the installation box 7.

[0030] In use, the installation cylinder 17 is controlled to move the connecting rod 16 forward, which in turn moves the installation toothed plate 11 forward, causing the installation toothed plate 11 to move out of the capacitor cabinet 1. Then, the power distribution expansion container 5 is placed above the installation toothed plate 11 using a hoisting tool. Next, the installation cylinder 17 is controlled to move the installation toothed plate 11 backward, causing the power distribution expansion container 5 to enter the capacitor cabinet 1. The position of the power distribution expansion container 5 is then fixed by a fixing mechanism. Finally, the lifting assembly is used to adjust the power distribution expansion container 5 to a suitable height for installation. This prevents the power distribution expansion container 5 from colliding with the capacitor cabinet 1 during hoisting, thus preventing damage to the equipment. It also solves the problem of difficult installation under hoisting conditions and improves work efficiency.

[0031] The fixing mechanism includes two sets of drive gears 25, which are rotatably connected to the top of the mounting box 7 and mesh with the mounting toothed plate 11. A second rotating rod 26 is fixedly connected to the top of the drive gear 25. A driving bevel gear 32 is fixedly sleeved on the outside of the second rotating rod 26, and a rotating sleeve 33 is rotatably sleeved on the outside of the rotating sleeve 33. A rotating bevel gear 34 is fixedly sleeved on the outside of the rotating sleeve 33. Two sets of first rotating rods 23 are rotatably connected to the top of the mounting box 7, and a driven bevel gear 24 is fixedly sleeved on the outside of the first rotating rod 23. Fixed teeth are fixedly connected to the top of both the rotating sleeve 33 and the second rotating rod 26. The top of the mounting box 7 is fixedly connected to the wheel 22. Several sets of mounting blocks 14 are fixedly connected to the top of the mounting box 7. A transmission rod 21 is rotatably connected to the mounting block 14. The front end and the rear end of the transmission rod 21 are fixedly connected to the transmission bevel gear 31. The front transmission bevel gear 31 meshes with the driving bevel gear 32 and the rotating bevel gear 34. The rear transmission bevel gear 31 meshes with the driven bevel gear 24. A fixed toothed plate 13 is slidably connected to the top of the mounting block 14. The fixed toothed plate 13 meshes with the fixed gear 22. A fixed plate 12 is slidably connected to the top of the fixed toothed plate 13. A buffer mechanism is installed on the fixed toothed plate 13.

[0032] When the mounting toothed plate 11 moves backward, it drives the drive gear 25 to rotate, which in turn causes the second rotating rod 26 to rotate. This rotation, through the active bevel gear 32, the rotating bevel gear 34, and the front transmission bevel gear 31, drives the rotating sleeve 33 to rotate, which in turn drives the front fixed gear 22 to rotate. The rotation direction of the front fixed gear 22 is opposite to that of the drive gear 25. At the same time, the rear transmission bevel gear 31 drives the first rotating rod 23 to rotate through the driven bevel gear 24, which in turn drives the rear fixed gear 22 to rotate. The rotation direction of the rear fixed gear 22 is opposite to that of the front fixed gear 22. Under the action of the fixed gear 22, the fixed toothed plate 13 moves towards the power distribution expansion container 5, which in turn drives the fixed plate 12 to move towards the power distribution expansion container 5. When the mounting toothed plate 11 is completely moved into the capacitor cabinet 1, the fixed plate 12 presses against the side wall of the power distribution expansion container 5, fixing the position of the power distribution expansion container 5.

[0033] The buffer mechanism includes several sets of buffer springs 28. The buffer springs 28 are fixedly connected to the side of the fixed plate 12 away from the power distribution booster 5. The end of the buffer spring 28 away from the fixed plate 12 is fixedly connected to the fixed toothed plate 13. Several sets of telescopic rods 27 are fixedly connected to the side of the fixed plate 12 away from the power distribution booster 5. The end of the telescopic rod 27 away from the fixed plate 12 is fixedly connected to the fixed toothed plate 13 to prevent the pressure of the fixed plate 12 from being too great and causing damage to the power distribution booster 5.

[0034] The lifting assembly includes a lifting cylinder 3, which is fixedly installed on the top of the inner cavity of the capacitor cabinet 1. The output end of the lifting cylinder 3 is fixedly connected to a mounting cover 4. Two sets of connecting covers 6 are fixedly connected to the bottom of the mounting cover 4. The bottom of the connecting cover 6 is fixedly connected to the top of the mounting box 7. A positioning mechanism is installed on the shock-absorbing box 8 to fix the power distribution capacitor 5 at a certain height.

[0035] When the lifting cylinder 3 is activated, the mounting cover 4 moves up and down, which in turn moves the connecting cover 6 up and down. This causes the mounting box 7 to move up and down, thereby adjusting the power distribution booster 5 to a suitable height and positioning it through the positioning mechanism.

[0036] The positioning mechanism includes a positioning cover 9, on which two sets of positioning plates 30 are slidably connected. Positioning toothed plates 29 are fixedly connected to the opposite side of each of the two sets of positioning plates 30. An installation rod 19 is rotatably inserted through the positioning cover 9. A positioning gear 15 is fixedly connected to the top of the installation rod 19. The positioning gear 15 meshes with the positioning toothed plates 29. Several sets of slots matching the positioning plates 30 are opened on the inner wall of the capacitor cabinet 1.

[0037] Manually rotating the mounting rod 19 causes the two sets of positioning plates 30 to move away from each other via the positioning toothed plate 29, and inserts them into the slots on the inner wall of the capacitor cabinet 1, thereby positioning the power distribution capacitor 5.

[0038] Several sets of damping springs 18 and damping shock absorbers 20 are fixedly connected to the bottom of the mounting box 7. The damping springs 18 are fitted outside the damping shock absorbers 20. The bottoms of the damping springs 18 and the damping shock absorbers 20 are fixedly connected to the damping box 8, which can reduce vibration during installation and prevent it from affecting the operation of electrical components.

[0039] The bottom of the mounting rod 19 is fixedly connected to a rotating handle for easy rotation of the mounting rod 19. The bottom of the positioning cover 9 is provided with a positioning pin to fix the position of the rotating handle. Several sets of support plates 10 are fixedly connected to the bottom of the positioning cover 9 to prevent the mounting rod 19 from being squeezed.

[0040] The connecting cover 6 has a second sliding opening that matches the mounting toothed plate 11. The mounting toothed plate 11 is slidably connected to the second sliding opening. The connecting cover 6 has a through hole that matches the fixing plate 12.

[0041] Several sets of heat dissipation holes are provided on capacitor cabinet 1.

[0042] The bottom of capacitor cabinet 1 is equipped with shock-absorbing rubber pads, and the top of capacitor cabinet 1 is equipped with a rain cover.

[0043] Working principle: During use, the installation cylinder 17 drives the connecting rod 16 forward, which in turn moves the installation toothed plate 11 forward, causing it to move out of the capacitor cabinet 1. Then, the power distribution booster 5 is placed above the installation toothed plate 11 using a hoisting tool. Next, the installation cylinder 17 drives the installation toothed plate 11 backward, causing the power distribution booster 5 to enter the capacitor cabinet 1. Simultaneously, the backward movement of the installation toothed plate 11 drives the drive gear 25 to rotate, which in turn rotates the second rotating rod 26. This rotation, through the driving bevel gear 32, the rotating bevel gear 34, and the front transmission bevel gear 31, drives the rotating sleeve 33 to rotate, which in turn drives the front fixed gear 22 to rotate. The rotation direction of the front fixed gear 22 is opposite to that of the drive gear 25. At the same time, the rear transmission bevel gear 31 drives the first rotating rod 23 to rotate through the driven bevel gear 24, which in turn drives the rear fixed gear 22 to rotate. The rotation direction of the rear fixed gear 22 is opposite to that of the front fixed gear 22. Under the action of the fixed gear 22, the fixed tooth plate 13 moves towards the power distribution expansion container 5, which in turn drives the fixed plate 12 to move towards the power distribution expansion container 5. When the mounting tooth plate 11 is completely moved into the capacitor cabinet 1, the fixed plate 12 presses against the side wall of the power distribution expansion container 5, fixing the position of the power distribution expansion container 5. Next, the lifting cylinder 3 is activated to move the mounting cover 4 up and down, which in turn moves the connecting cover 6 up and down, causing the mounting box 7 to move up and down. This adjusts the power distribution expansion container 5 to a suitable height. The mounting rod 19 is manually rotated to move the two sets of positioning plates 30 away from each other through the positioning tooth plate 29, and then inserted into the slots on the inner wall of the capacitor cabinet 1 to position the power distribution expansion container 5. After positioning, the power distribution expansion container 5 can be installed, which can prevent the power distribution expansion container 5 from colliding with the capacitor cabinet 1 during hoisting and damaging the equipment. At the same time, it solves the problem of difficult installation under hoisting conditions and improves work efficiency.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A power distribution capacity expansion device for power distribution engineering, comprising a capacitor bank (1), characterized in that: The capacitor cabinet (1) is equipped with a cabinet door (2) on the front side. The capacitor cabinet (1) is slidably connected to a shock-absorbing box (8). The shock-absorbing box (8) is slidably connected to an installation box (7). A power distribution booster (5) is provided above the installation box (7). An installation component for easy installation of the power distribution booster (5) is installed on the installation box (7). A lifting component for adjusting the power distribution booster (5) to a suitable height is installed on the capacitor cabinet (1). The installation assembly includes an installation cylinder (17), which is fixedly installed on the inner wall of the installation box (7). The output end of the installation cylinder (17) is fixedly connected to a connecting rod (16). The top of the installation box (7) is provided with a first sliding opening that matches the connecting rod (16). The connecting rod (16) is slidably connected to the first sliding opening. The top of the connecting rod (16) is fixedly connected to an installation toothed plate (11). The bottom of the installation toothed plate (11) is slidably connected to the top of the installation box (7). The power distribution booster (5) is installed on the top of the installation toothed plate (11). The installation box (7) is equipped with a fixing mechanism that can fix the position of the power distribution booster (5).

2. The power distribution capacity expansion device for power distribution engineering according to claim 1, characterized in that: The fixing mechanism includes two sets of drive gears (25), which are rotatably connected to the top of the mounting box (7). The drive gears (25) mesh with the mounting toothed plate (11). A second rotating rod (26) is fixedly connected to the top of the drive gears (25). A driving bevel gear (32) is fixedly sleeved on the outside of the second rotating rod (26). A rotating sleeve (33) is rotatably sleeved on the outside of the second rotating rod (26). A rotating bevel gear (34) is fixedly sleeved on the outside of the rotating sleeve (33). Two sets of first rotating rods (23) are rotatably connected to the top of the mounting box (7). A driven bevel gear (24) is fixedly sleeved on the outside of the first rotating rods (23). The tops of the rotating sleeve (33) and the second rotating rods (26) are both fixedly connected to a fixed... A fixed gear (22) is fixedly connected to the top of the mounting box (7), and a number of mounting blocks (14) are fixedly connected to the top of the mounting block (14). A transmission rod (21) is rotatably connected to the mounting block (14). A transmission bevel gear (31) is fixedly connected to the front end and the rear end of the transmission rod (21). The front transmission bevel gear (31) meshes with the driving bevel gear (32), the front transmission bevel gear (31) meshes with the rotating bevel gear (34), and the rear transmission bevel gear (31) meshes with the driven bevel gear (24). A fixed tooth plate (13) is slidably connected to the top of the mounting block (14). The fixed tooth plate (13) meshes with the fixed gear (22). A fixed plate (12) is slidably connected to the top of the fixed tooth plate (13). A buffer mechanism is installed on the fixed tooth plate (13).

3. A power distribution capacity expansion device for power distribution engineering according to claim 2, characterized in that: The buffer mechanism includes several sets of buffer springs (28), which are fixedly connected to the side of the fixed plate (12) away from the power distribution booster (5). The end of the buffer spring (28) away from the fixed plate (12) is fixedly connected to the fixed toothed plate (13). Several sets of telescopic rods (27) are fixedly connected to the side of the fixed plate (12) away from the power distribution booster (5). The end of the telescopic rod (27) away from the fixed plate (12) is fixedly connected to the fixed toothed plate (13).

4. A power distribution capacity expansion device for power distribution engineering according to claim 1, characterized in that: The lifting assembly includes a lifting cylinder (3), which is fixedly installed on the top of the inner cavity of the capacitor cabinet (1). The output end of the lifting cylinder (3) is fixedly connected to a mounting cover (4). Two sets of connecting covers (6) are fixedly connected to the bottom of the mounting cover (4). The bottom of the connecting cover (6) is fixedly connected to the top of the mounting box (7). The shock absorption box (8) is equipped with a positioning mechanism to fix the power distribution capacitor (5) at a certain height.

5. A power distribution capacity expansion device for power distribution engineering according to claim 4, characterized in that: The positioning mechanism includes a positioning cover (9), on which two sets of positioning plates (30) are slidably connected. Positioning toothed plates (29) are fixedly connected to the opposite side of the two sets of positioning plates (30). An installation rod (19) is rotatably passed through the positioning cover (9). A positioning gear (15) is fixedly connected to the top of the installation rod (19). The positioning gear (15) meshes with the positioning toothed plate (29). Several sets of slots matching the positioning plates (30) are opened on the inner wall of the capacitor cabinet (1).

6. A power distribution capacity expansion device for power distribution engineering according to claim 1, characterized in that: The bottom of the mounting box (7) is fixedly connected to several sets of shock-absorbing springs (18) and damping shock absorbers (20). The shock-absorbing springs (18) are fitted outside the damping shock absorbers (20). The bottoms of the shock-absorbing springs (18) and the damping shock absorbers (20) are fixedly connected to the shock-absorbing box (8).

7. A power distribution capacity expansion device for power distribution engineering according to claim 5, characterized in that: The bottom of the mounting rod (19) is fixedly connected to a rotating handle, the bottom of the positioning cover (9) is provided with a positioning pin that can fix the position of the rotating handle, and the bottom of the positioning cover (9) is fixedly connected to several sets of support plates (10).

8. A power distribution capacity expansion device for power distribution engineering according to claim 4, characterized in that: The connecting cover (6) has a second sliding opening that matches the mounting toothed plate (11). The mounting toothed plate (11) is slidably connected to the second sliding opening. The connecting cover (6) has a through hole that matches the fixing plate (12).

9. A power distribution capacity expansion device for power distribution engineering according to claim 1, characterized in that: The capacitor cabinet (1) has several sets of heat dissipation holes.

10. A power distribution capacity expansion device for power distribution engineering according to claim 1, characterized in that: The capacitor cabinet (1) is provided with shock-absorbing rubber pads at the bottom and a rain cover at the top.

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