A power distribution cabinet

Abstract

The present invention discloses a power distribution cabinet, which includes a base assembly and two side plates. An equipment installation assembly is arranged above the base assembly, and a top assembly is connected to the equipment installation assembly, and the top assembly can rotate on the equipment installation assembly. By providing a back assembly, the back protection plate of the power distribution cabinet is arranged in a split manner. When maintenance is required for electrical equipment, the staff can operate the two back plates to move in the direction away from each other, so that the rear side of the electrical equipment installed in the distribution cabinet is exposed to the staff's view, which facilitates the maintenance of the electrical equipment. Moreover, after the back assembly is opened and in cooperation with the opening of the cabinet door, the front and back of the distribution cabinet can be opened, so that light is easy to enter the distribution cabinet from two directions, with sufficient light, which is conducive to the maintenance and repair work of electrical equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and specifically relates to a power distribution cabinet. Background Technique

[0002] Power distribution cabinets (boxes) are divided into power distribution cabinets (boxes), lighting distribution cabinets (boxes), and metering cabinets (boxes), which are the terminal equipment of the power distribution system. In the prior art, the cabinets of power distribution cabinets are mostly integrally fixed installation structures, and the back panels of the cabinets are a whole. In this way, when the electrical equipment in the power distribution cabinet needs to be maintained or serviced, there is only one open working door. It is not easy for staff to comprehensively observe the electrical equipment in the power distribution cabinet, especially the back and side of the electrical equipment, which the staff cannot observe. It is inconvenient to conduct a comprehensive inspection of the electrical equipment in the power distribution cabinet, so it is impossible to ensure the progress of the inspection and maintenance work. Moreover, with the single-door opening method, light can only enter the power distribution cabinet from one direction, and light from other directions cannot enter the power distribution cabinet. Insufficient light is also not conducive to the progress of the inspection work, and it is inconvenient to use.

[0003] For example, a power distribution cabinet with a dehumidification and dust removal function disclosed in CN115064970A includes a cabinet body and a cabinet door. The bottom of the cabinet body is fixedly connected with a base, the top of the cabinet body is fixedly connected with an air outlet pipe, and an exhaust fan is installed inside the air outlet pipe. The top of the cabinet body is connected with a shielding mechanism located above the air outlet pipe. A hole plate is fixedly connected inside the cabinet body. The bottom of the cabinet body is fixedly connected with an air inlet pipe, and an intake fan is installed inside the air inlet pipe. The lower end of the air inlet pipe is connected with a sleeve, and a second dust-proof net is fixedly embedded in the lower side of the sleeve. A surrounding plate is fixedly connected inside the sleeve, and a second air-permeable plate is fixedly embedded at the bottom of the surrounding plate. The present invention has the functions of dehumidification and dust removal, can effectively prevent dust and moisture from entering the cabinet body, and can clean the dust, ensure the good ventilation performance of the air inlet pipe, and maintain the good ventilation and heat dissipation effects inside the cabinet body. The following problems exist in the process of using this technical solution: 1. The cabinet body is an integrally formed structure, and the back panel of the cabinet body cannot be separated. In this way, when the staff needs to maintain the electrical equipment in the power distribution cabinet, it is not conducive to comprehensively observing the electrical equipment; 2. There is only one door, and the angle of light entering the power distribution cabinet is only in one direction, and there is no other opening mechanism, which is not conducive to light entering the power distribution cabinet from other directions, not conducive to increasing the light-receiving area inside the power distribution cabinet, and not conducive to the progress of the inspection work. 3. The components of the cabinet body cannot rotate relative to the electrical equipment inside the cabinet body, which is not conducive to exposing all directions of the electrical equipment to the sight of the staff and is not conducive to the inspection and maintenance work of the electrical equipment. Summary of the Invention

[0004] The purpose of the present invention is to provide a power distribution cabinet to solve the problems raised in the above background technique.

[0005] To achieve the above object, the present invention provides the following technical solution: A power distribution cabinet, comprising a base assembly and two side plates. An equipment installation assembly is arranged above the base assembly. A top assembly is connected to the equipment installation assembly, and the top assembly can rotate on the equipment installation assembly. The side plates are connected to the top assembly. A cabinet door is connected to one of the side plates by a hinge. A back assembly is arranged at the rear of the top assembly. The back assembly includes a first telescopic member, and both ends of the first telescopic member are connected to a back plate. An elastic member is sleeved on the surface of the first telescopic member. A special-shaped groove is formed in the back plate. A second telescopic member is connected to the top of the inner wall of the special-shaped groove. The bottoms of the two second telescopic members are connected by a limiting rod.

[0006] Optionally, the base assembly includes a bottom plate, and a wire passing opening is formed in the bottom plate.

[0007] Optionally, the equipment installation assembly includes:

[0008] A central rod, connected to the top of the bottom plate, for supporting the working structure;

[0009] An installation plate, connected to the central rod, for installing electrical equipment;

[0010] A support plate, connected to the top of the central rod, and a rotary support member is fixedly connected in a groove at the top of the support plate. A rotary shaft is connected to the inner wall of the rotary support member;

[0011] A stabilizing block, connected to the central rod, and the top of the stabilizing block is fixedly connected to the bottom of the support plate.

[0012] Optionally, the top assembly includes:

[0013] A top plate, connected to the rotary shaft, and a driving cavity is formed inside the top plate;

[0014] A movement opening, formed at the bottom of the top plate, and the movement opening is communicated with the driving cavity;

[0015] A through groove, formed in the top plate, and the through groove is communicated with the driving cavity;

[0016] A moving plate, arranged inside the driving cavity, and one side of the moving plate is connected to a third telescopic member. The end of the third telescopic member away from the moving plate is fixedly connected to the inner wall of the driving cavity;

[0017] An elastic member, sleeved on the surface of the third telescopic member, for providing the acting force for the movement of the moving plate;

[0018] A connecting plate, connected to the moving plate, and the side of the connecting plate away from the moving plate is fixedly connected to the side plate;

[0019] A fixed shaft is connected inside the driving cavity, and a pressure-receiving block is rotatably connected to the surface of the fixed shaft;

[0020] A tension rod is arranged inside the through groove, and one end of the tension rod is connected to a driving rod. One end of the driving rod is connected to a movable block, and extrusion blocks are fixedly connected to both the left and right sides of the movable block. A limiting frame is connected to the movable block;

[0021] A pulling structure is connected to the tension rod, and the pulling structure is used to connect the tension rod and the back plate;

[0022] A displacement structure is arranged in a groove on the top plate and is used to connect the top plate and the back plate. The displacement structure enables the back plate to move away from the top plate.

[0023] Optionally, the pulling structure includes a connecting rope, and hanging rings are connected to both ends of the connecting rope.

[0024] Optionally, the displacement structure includes:

[0025] A track is connected in a groove at the rear of the top plate, and a slider is slidably connected to the surface of the track;

[0026] A moving block is slidably connected in a cavity formed inside the slider, and a connecting rod is connected to the moving block. The side of the connecting rod away from the moving block is fixedly connected to the back plate.

[0027] Optionally, the first telescopic member, the second telescopic member, and the third telescopic member are all telescopic rods, and the telescopic rods can be extended and shortened.

[0028] Optionally, the first elastic member and the second elastic member are both springs, and the springs can return to their initial lengths after the compressive or tensile force disappears.

[0029] Optionally, the rotary support member is a bearing. The surface of the outer ring of the bearing is fixedly connected to the support plate, and the inner wall of the inner ring of the bearing is fixedly connected to the surface of the rotary shaft.

[0030] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0031] The base assembly of the present invention forms the base of the entire power distribution cabinet, and the setting of the wire passing port enables the wires of electrical equipment to pass through.

[0032] The present invention arranges a back component so that the back protection plate of the power distribution cabinet is arranged in a split type. When the staff needs to inspect and repair the power equipment, they can operate the two back plates to move the two back plates away from each other, so that the back side of the power equipment installed in the distribution cabinet can be exposed to the staff's field of vision, which makes it convenient to inspect and repair the power equipment. Moreover, after the back component is opened, in conjunction with the opening of the cabinet door, the front and back of the distribution cabinet can be opened, so that light can easily enter the distribution cabinet from two directions, and sufficient light is conducive to the inspection and maintenance of the power equipment.

[0033] The present invention provides an equipment installation component to install the power equipment to be installed in the distribution cabinet while allowing the top component to rotate. The installation of the mounting plate on the equipment installation component fully utilizes the space in the distribution cabinet (the space enclosed by the side panels, cabinet doors and back panels).

[0034] Through the arrangement of the top component, the present invention can utilize the force of the staff to open the back component. The pulling structure will move the tension rod due to the force transmitted from opening the two back panels. The tension rod will drive the extrusion block to move through the driving rod and the movable block. The extrusion block squeezes the pressure block, which makes the two pressure blocks move, and eventually makes the two side panels move away from each other. The two side panels are stretched open, which allows external light to enter the distribution cabinet at more angles. More light enters the distribution cabinet, which is beneficial to the inspection and maintenance of power equipment. The arrangement of the displacement structure allows the back component to move in a direction away from the top component.

[0035] The present invention cooperates with each other among the base assembly, the side panels, the equipment installation assembly, the top assembly and the back assembly, so that when the staff repair the power equipment in the distribution cabinet, they can open the back assembly, so that the two side panels are stretched open, the back assembly moves backward, and the back panel is separated from the top panel. In this way, the external protection components of the cabinet formed by the side panels, the top panel and the back panel are stretched open, which facilitates the entry of light into the interior of the cabinet while exposing more power equipment in the cabinet, which is beneficial to the inspection and maintenance of the power equipment. After the side panels, the top panel and the back panel are stretched open, the staff can also rotate the top panel, and the top panel drives the side panels to rotate through the structure in the technical solution, and the top panel drives the back panel to rotate through the structure in the technical solution, which facilitates the staff to expose all directions of the power equipment in the distribution cabinet to the staff's line of sight, so that the power equipment can be comprehensively inspected and repaired, and the way of stretching and rotating the top panel, the side panels and the back panel makes it possible for the setting of the mounting plate to make full use of the space in the distribution cabinet, and the mounting plate can be set according to the conventional size, and the way of stretching and rotating will not affect the power equipment installed on the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1Structural sectional view of the front view of the present invention;

[0037] Figure 2 For the present invention Figure 1 Partial enlarged view of A-A in the present invention;

[0038] Figure 3 Structural sectional view of the bottom view of the present invention;

[0039] Figure 4 For the present invention Figure 3 Partial enlarged view of B-B in the present invention;

[0040] Figure 5 For the present invention Figure 3 Partial enlarged view of C-C in the present invention;

[0041] Figure 6 Structural schematic diagram of the present invention when pulled to form the bottom view;

[0042] Figure 7 Structural sectional view of the right view of the equipment installation component of the present invention;

[0043] Figure 8 Structural schematic diagram of the rear view of the back component of the present invention;

[0044] Figure 9 Structural schematic diagram of the three-dimensional view of the back component of the present invention;

[0045] Figure 10 Structural schematic diagram of the three-dimensional view of the side plate, top plate and back plate of the present invention;

[0046] Figure 11 Structural schematic diagram of the top view of the side plate, cabinet door, back plate and mounting plate of the present invention;

[0047] Figure 12 Structural schematic diagram of the top view of the side plate, cabinet door, back plate and mounting plate of the present invention rotated by a certain angle.

[0048] Explanation of reference numerals:

[0049] 1 Base assembly, 101 Bottom plate, 102 Wire passing opening, 2 Side plates, 3 Equipment installation assembly, 301 Central rod, 302 Mounting plate, 303 Support plate, 304 Rotating support, 305 Rotating shaft, 306 Stabilizing block, 4 Top assembly, 401 Top plate, 402 Driving cavity, 403 Movement opening, 404 Through groove, 405 Moving plate, 406 Telescopic member III, 407 Elastic member II, 408 Connecting plate, 409 Fixed shaft, 410 Compression block, 411 Tension rod, 412 Driving rod, 413 Movable block, 414 Extrusion block, 415 Limiting frame, 416 Pulling structure, 4161 Connecting rope, 4162 Hanging loop, 417 Displacement structure, 4171 Track, 4172 Slide block, 4173 Moving block, 4174 Connecting rod, 5 Back assembly, 501 Telescopic member I, 502 Back plate, 503 Elastic member I, 504 Special-shaped groove, 505 Telescopic member II, 506 Limiting rod. Detailed implementation manners

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0051] Please refer to Figures 1-12 , a power distribution cabinet, including a base assembly 1 and two side plates 2. The base assembly 1 includes a bottom plate 101, and a wire passing opening 102 is provided on the bottom plate 101. The bottom plate 101 is used to be directly placed on the ground. The setting of the wire passing opening 102 enables the wires of the power equipment to pass through the bottom plate 101. In this way, the wires of the power equipment have no contact or penetration relationship with the side plates 2 and the back plate 502. Therefore, the rotation of the side plates 2 and the back plate 502 will not affect the wires of the power equipment. The bottom of the side plate 2 is in contact with the top of the bottom plate 101. An equipment installation assembly 3 is provided above the base assembly 1. The equipment installation assembly 3 includes:

[0052] A central rod 301, connected to the top of the bottom plate 101, used to support the working structure. The bottom of the central rod 301 is fixedly connected to the top of the bottom plate 101.

[0053] A mounting plate 302, connected to the central rod 301, used to install the power equipment. The rear side of the mounting plate 302 is fixedly connected to the front side of the central rod 301. The staff can use self-tapping screws to install the power equipment on the mounting plate 302. It can be clearly seen from the attached drawings of the specification Figure 11 that the size of the mounting plate 302 makes full use of the space formed by the enclosure of the side plates 2, the cabinet door and the back plate 502.

[0054] The support plate 303 is connected to the top of the central rod 301, and a rotary support 304 is fixedly connected in the groove at the top of the support plate 303. A rotary shaft 305 is connected to the inner wall of the rotary support 304. The rotary support 304 is a bearing, the surface of the outer ring of the bearing is fixedly connected to the support plate 303, and the inner wall of the inner ring of the bearing is fixedly connected to the surface of the rotary shaft 305.

[0055] The stabilizing block 306 is connected to the central rod 301, and the top of the stabilizing block 306 is fixedly connected to the bottom of the support plate 303. The setting of the stabilizing block 306 provides stable support for the support plate 303. A top component 4 is connected to the equipment installation component 3, and the top component 4 can rotate on the equipment installation component 3. The top component 4 includes:

[0056] The top plate 401 is connected to the rotary shaft 305, and a driving cavity 402 is formed inside the top plate 401. The top plate 401 can drive the rotary shaft 305 to rotate on the inner wall of the rotary support 304.

[0057] The movement port 403 is opened at the bottom of the top plate 401, and the movement port 403 communicates with the driving cavity 402. The setting of the movement port 403 reserves space for the left - right movement of the moving plate 405.

[0058] The through - slot 404 is opened on the top plate 401, and the through - slot 404 communicates with the driving cavity 402.

[0059] The moving plate 405 is arranged inside the driving cavity 402, and a third telescopic member 406 is connected to one side of the moving plate 405. The end of the third telescopic member 406 away from the moving plate 405 is fixedly connected to the inner wall of the driving cavity 402. The third telescopic member 406 is a telescopic rod, which limits the moving plate 405 to move only left - right, and the moving plate 405 will not fall downward.

[0060] The second elastic member 407 is sleeved on the surface of the third telescopic member 406 to provide the acting force for the movement of the moving plate 405. When the two moving plates 405 move away from each other due to an external force, after the external force disappears, the two second elastic members 407 can drive the two moving plates 405 to move towards each other.

[0061] The connecting plate 408 is connected to the moving plate 405, and the side of the connecting plate 408 away from the moving plate 405 is fixedly connected to the side plate 2.

[0062] The fixed shaft 409 is connected inside the driving cavity 402, and a pressure - receiving block 410 is rotatably connected to the surface of the fixed shaft 409. The pressure - receiving block 410 can rotate on the surface of the fixed shaft 409. Since the fixed shaft 409 is not at the center of the pressure - receiving block 410, the pressure - receiving block 410 will gradually press the moving plate 405 after being squeezed.

[0063] The tension rod 411 is arranged inside the through groove 404. The tension rod 411 can move inside the through groove 404, and one end of the tension rod 411 is connected with a driving rod 412. One end of the driving rod 412 is connected with a movable block 413. Extrusion blocks 414 are fixedly connected to both the left and right sides of the movable block 413. A limiting frame 415 is connected to the movable block 413. The arrangement of the limiting frame 415 can prevent the extrusion block 414 from moving to the rear of the pressure receiving block 410.

[0064] The pulling component 416 is connected to the tension rod 411 and is used to connect the tension rod 411 and the back plate 502. The pulling component 416 includes a connecting rope 4161. Hanging rings 4162 are connected to both ends of the connecting rope 4161. The two hanging rings 4162 are respectively fixedly connected to the tension rod 411 and the back plate 502. When the pulling component 416 is subjected to a pulling force, the pulling component 416 will drive the driving rod 412 to move through the tension rod 411. The driving rod 412 will drive the extrusion block 414 to move through the movable block 413. The extrusion block 414 extrudes the pressure receiving block 410, and the pressure receiving block 410 extrudes the moving plate 405.

[0065] The displacement component 417 is arranged in the groove on the top plate 401 and is used to connect the top plate 401 and the back plate 502. The displacement component 417 enables the back plate 502 to move away from the top plate 401, and the arrangement of the two displacement components 417 can enable the two back plates 502 to move away from each other. The displacement component 417 includes:

[0066] The track 4171 is connected in the groove at the rear of the top plate 401, and a slider 4172 is slidably connected to the surface of the track 4171.

[0067] The moving block 4173 is slidably connected inside the cavity formed in the slider 4172. When the back plate 502 moves away from the top plate 401, the moving block 4173 will move inside the cavity of the slider 4172. A connecting rod 4174 is connected to the moving block 4173, and the side of the connecting rod 4174 away from the moving block 4173 is fixedly connected to the back plate 502. The side plate 2 is connected to the top assembly 4. A cabinet door is hinged to one of the side plates 2. A back assembly 5 is provided at the rear of the top assembly 4. The back assembly 5 includes a first telescopic member 501. Both ends of the first telescopic member 501 are connected to the back plate 502. The bottom of the back plate 502 is in contact with the top of the bottom plate 101. The back plate 502 is provided with a notch at the position of the connecting rope 4161. An elastic member 503 is sleeved on the surface of the first telescopic member 501. Both ends of the elastic member 503 are fixedly connected to the two back plates 502 respectively. The setting of the elastic member 503 can make the two back plates 502 move towards each other. When the two back plates 502 move away from each other, the force received by the back plate 502 will be transmitted to the pulling structure 416, and the pulling structure 416 will drive the tension rod 411 to move. When the back plate 502 moves backward (the movement away from the top plate 401), the back plate 502 will transmit the force to the tension rod 411 through the pulling structure 416. Both the elastic member 503 and the elastic member 407 are springs. The spring can return to its initial length after the compressive or tensile force disappears. The back plate 502 is provided with a special-shaped groove 504. It can be clearly seen from the accompanying drawings of the specification that the special-shaped groove 504 has two vertical sides, and the vertical sides can hold the limiting rod 506. The inclined side of the special-shaped groove 504 can make the limiting rod 506 slide downward. The top of the inner wall of the special-shaped groove 504 is connected to a second telescopic member 505. The bottoms of the two second telescopic members 505 are connected by the limiting rod 506. The first telescopic member 501, the second telescopic member 505 and the third telescopic member 406 are all telescopic rods, and the telescopic rods can be extended and shortened.

[0068] In use, the staff move the two back plates 502 away from each other. The first telescopic member 501 and the first elastic member 503 will be stretched, the limiting rod 506 will move downward, the second telescopic member 505 will be stretched, and the back plate 502 will drive the tension rod 411 to move through the pulling structure 416. The tension rod 411 will drive the extrusion block 414 to move through the drive rod 412 and the movable block 413. The extrusion block 414 will extrude the pressed block 410, and the pressed block 410 will rotate on the surface of the fixed shaft 409. The fixed shaft 409 will extrude the moving plate 405. The movement of the moving plate 405 will compress the third telescopic member 406 and the second elastic member 407. The moving plate 405 will drive the side plate 2 to move through the connecting plate 408. The two side plates 2 move away from each other, and the side plates 2 are expanded. By pulling the back plate 502 backward through the second telescopic member 505, the back plate 502 will transfer the acting force to the tension rod 411 again through the pulling structure 416, so that the side plates 2 will be further expanded. The backward movement of the back plate 502 will drive the connecting rod 4174 to move. The connecting rod 4174 will drive the moving block 4173 to move in the cavity of the sliding block 4172. In this way, the back plate 502 also moves away from the top plate 401. The side plates 2, the top plate 401 and the back plate 502 will be expanded from each other. After being expanded, external light can enter the cabinet from all directions, which is beneficial to the carrying out of maintenance and repair work. Moreover, after being expanded, the cabinet door is opened, and the two back plates 502 move away from each other, and the cabinet presents a front-to-back open state, which is convenient for repairing the rear side of the power equipment in the power distribution cabinet. After the side plates 2, the top plate 401 and the back plate 502 are expanded, the staff can rotate the top plate 401. The top plate 401 can drive the rotating shaft 305 to rotate on the inner wall of the rotating support member 304. In this way, the side plates 2, the top plate 401 and the back plate 502 also rotate, which can expose all perspectives of the power equipment in the power distribution cabinet within the vision of the staff. The expanding and rotating method will not touch the mounting plate 302, and the mounting plate 302 makes full use of the space enclosed by the side plates 2, the top plate 401 and the back plate 502.

[0069] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A power distribution cabinet, characterized in that, It includes a base assembly (1) and two side plates (2). Above the base assembly (1), there is a device installation assembly (3). A top assembly (4) is connected to the device installation assembly (3), and the top assembly (4) can rotate on the device installation assembly (3). The side plates (2) are connected to the top assembly (4). A cabinet door is hinged to one of the side plates (2). At the rear of the top assembly (4), there is a back assembly (5). The back assembly (5) includes a first telescopic member (501). Both ends of the first telescopic member (501) are connected to a back plate (502). The surface of the first telescopic member (501) is sleeved with a first elastic member (503). An irregular groove (504) is formed on the back plate (502). At the top of the inner wall of the irregular groove (504), a second telescopic member (505) is connected. The bottoms of the two second telescopic members (505) are connected by a limiting rod (506). The device installation assembly (3) includes: A central rod (301) connected to the top of the bottom plate (101) for supporting the working structure; A mounting plate (302) connected to the central rod (301) for installing power equipment; A support plate (303) connected to the top of the central rod (301). A rotary support member (304) is fixedly connected in a groove at the top of the support plate (303). A rotary shaft (305) is connected to the inner wall of the rotary support member (304); A stabilizing block (306) connected to the central rod (301), and the top of the stabilizing block (306) is fixedly connected to the bottom of the support plate (303); The top assembly (4) includes: A top plate (401) connected to the rotary shaft (305), and a driving cavity (402) is formed inside the top plate (401); A movement port (403) is formed at the bottom of the top plate (401), and the movement port (403) communicates with the driving cavity (402); A through groove (404) is formed on the top plate (401), and the through groove (404) communicates with the driving cavity (402); A moving plate (405) is arranged inside the driving cavity (402). One side of the moving plate (405) is connected to a third telescopic member (406). The end of the third telescopic member (406) away from the moving plate (405) is fixedly connected to the inner wall of the driving cavity (402); A second elastic member (407) is sleeved on the surface of the third telescopic member (406) to provide a driving force for the movement of the moving plate (405); A connecting plate (408) is connected to the moving plate (405), and the side of the connecting plate (408) away from the moving plate (405) is fixedly connected to the side plate (2); A fixed shaft (409) is connected inside the driving cavity (402), and a pressure-receiving block (410) is rotatably connected to the surface of the fixed shaft (409); The tension rod (411) is arranged inside the through groove (404), and one end of the tension rod (411) is connected with a driving rod (412). One end of the driving rod (412) is connected with a movable block (413). Extrusion blocks (414) are fixedly connected to both the left and right sides of the movable block (413). A limiting frame (415) is connected to the movable block (413); The pulling component (416) is connected to the tension rod (411), and the pulling component (416) is used to connect the tension rod (411) and the back plate (502); The displacement component (417) is arranged in a groove on the top plate (401) and is used to connect the top plate (401) and the back plate (502). The displacement component (417) enables the back plate (502) to move away from the top plate (401).

2. The power distribution cabinet according to claim 1, characterized in that, The base assembly (1) includes a bottom plate (101), and a wire passing opening (102) is formed in the bottom plate (101).

3. A power distribution cabinet according to claim 1, characterized in that, The pulling component (416) includes a connecting rope (4161), and hanging rings (4162) are connected to both ends of the connecting rope (4161).

4. A power distribution cabinet according to claim 3, characterized in that, The displacement component (417) includes: A track (4171) is connected in a groove at the rear side of the top plate (401), and a slider (4172) is slidably connected to the surface of the track (4171); A moving block (4173) is slidably connected in a cavity formed inside the slider (4172), and a connecting rod (4174) is connected to the moving block (4173). One side of the connecting rod (4174) far from the moving block (4173) is fixedly connected to the back plate (502).

5. A power distribution cabinet according to claim 1, characterized in that, The first telescopic member (501), the second telescopic member (505), and the third telescopic member (406) are all telescopic rods, and the telescopic rods can be extended and shortened.

6. A power distribution cabinet according to claim 1, characterized in that, The first elastic member (503) and the second elastic member (407) are both springs, and the springs can return to their initial lengths after the compressive or tensile force disappears.

7. A power distribution cabinet according to claim 1, characterized in that, The rotary support member (304) is a bearing. The surface of the outer ring of the bearing is fixedly connected to the support plate (303), and the inner wall of the inner ring of the bearing is fixedly connected to the surface of the rotary shaft (305).

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