Intelligent power distribution cabinet

Abstract

The application relates to an intelligent power distribution cabinet, and relates to the technical field of smart grids, which comprises a cabinet body, a cabinet door rotatably installed on the front side of the cabinet body, a positioning plate vertically upwardly fixed on the left and right edges of the top surface of the cabinet body, and a vertically upwardly extending plate detachably installed on the top surface of the positioning plate; a support plate in an installed state is arranged above the cabinet body in the horizontal direction, the upper portion of the extending plate is provided with a locking piece, the left and right edges of the support plate in the horizontal state are detachably connected with the mutually close sides of the upper portions of the two extending plates through the locking piece, and a support through hole is formed in the bottom surface of the support plate; in the application, the structure of the positioning plate, the extending plate, the support plate and the locking piece can be used for directly installing a camera on the support plate through the support through hole, an additional hole does not need to be drilled in the wall surface above the power distribution cabinet, and the problems of screw loosening, sliding or falling caused by hole drilling vibration are avoided.

Description

Technical Field

[0001] This application relates to the technical field of smart grids, and in particular to a smart distribution cabinet. Background Technology

[0002] With the comprehensive advancement of smart grid construction, the application scenarios of distribution cabinets are constantly expanding. Wall-mounted distribution cabinets, with their advantages of convenient installation, high space utilization, and simple maintenance, are being widely used in residential communities, industrial and commercial parks, and various public buildings. The core of this type of distribution cabinet consists of a cabinet body and a rotating, openable door. The door is equipped with multiple transparent observation windows, allowing staff to quickly check the equipment's operating status and conduct troubleshooting. The back of the cabinet is typically rigidly connected to the wall with screws. The installation height and fixing position must comply with industry standards to ensure safe operation and provide basic protection against theft and electricity theft.

[0003] Most mainstream wall-mounted distribution cabinets currently use a direct wall-mounted structure. During installation, multiple fastening screws rigidly connect the back of the cabinet to the target wall, maintaining the bottom of the cabinet at a specified height for stable mounting. The cabinet door is assembled with a rotating hinge, allowing for flexible opening to facilitate wiring, debugging, and maintenance. Multiple transparent observation windows are also fixed to the cabinet door. For critical scenarios with high requirements for theft and electricity theft prevention, to avoid compromising the cabinet's structural strength, surveillance cameras are typically not integrated directly into the cabinet or door. Instead, they are externally mounted, fixed to the wall above the distribution cabinet with screws, forming external monitoring and protection.

[0004] After the distribution cabinet has been fixed to the wall, drilling holes in the wall above it to install a camera will cause continuous vibration and impact stress during drilling, which will be transmitted along the wall to the cabinet's mounting area. This can easily lead to loosening, slippage, or even detachment of the original fastening screws on the back of the cabinet, reducing the reliability of the connection between the cabinet and the wall. Furthermore, additional drilling will damage the overall wall structure, potentially causing cracks and peeling, further affecting the stability of the distribution cabinet installation. Therefore, there is room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide an intelligent power distribution cabinet that solves the problem that when installing monitoring equipment by drilling additional holes in the upper wall of existing power distribution cabinets, vibration can easily cause screws to loosen and the wall to be damaged, thereby reducing installation reliability and electrical safety.

[0006] The intelligent power distribution cabinet provided in this application adopts the following technical solution: A smart power distribution cabinet includes a cabinet body and a cabinet door rotatably mounted on the front side of the cabinet body; vertically upward positioning plates are fixed on the left and right edges of the top surface of the cabinet body, and vertically upward extension plates are detachably mounted on the top surface of the positioning plates; a support plate in an installed state is provided on the upper part of the cabinet body along the horizontal direction, and a locking member is provided on the upper part of the extension plate; when the support plate is in a horizontal state, the left and right edges and the sides of the upper parts of the two extension plates that are close to each other are detachably connected by the locking member, and a number of support through holes for installing cameras are opened on the bottom surface of the support plate.

[0007] By adopting the above technical solution, utilizing the structure of the positioning plate, extension plate, support plate, and locking components, the camera can be directly installed on the support plate through the support through-hole, eliminating the need for additional drilling on the wall above the distribution cabinet. This avoids the problem of loosening, slippage, or falling off of the cabinet's fastening screws due to drilling vibration, while also protecting the integrity of the wall structure without damaging the wall. This effectively improves the reliability of the distribution cabinet installation, ensures electrical safety, and makes camera installation convenient, adapting to the protection needs of external monitoring, and taking into account both installation standardization and anti-theft and anti-electricity theft effects.

[0008] Optionally, the left and right sides of the support plate are slidably connected to the sides of the two extension plates that are close to each other, and the left and right sides of the support plate are slidably connected to the sides of the two positioning plates that are close to each other; the bottom surface of the extension plate is rotatably connected to the bottom surface of the positioning plate, and the rotating surface of the extension plate is parallel to the front side of the cabinet; the two extension plates can rotate back to back to a vertically upward supporting state, and the support plate can slide up to an installation state flush with the top surface of the extension plate and be fixed with locking components; the support plate can slide down to a storage state that abuts against the top surface of the cabinet, and the two extension plates can rotate towards each other to a horizontal protective state that covers the support plate and is fixed with locking components.

[0009] By adopting the above technical solution, the support plate, extension plate, and positioning plate are slidably connected. The extension plate can rotate relative to the positioning plate, enabling flexible switching between support and protection states. During installation, the support plate slides down and is fixed to meet the camera installation height requirements; during transportation, the support plate slides down for storage, and the extension plate is horizontally covered, significantly reducing the overall volume of the power distribution cabinet, facilitating factory transportation, reducing component damage during transportation, and allowing for convenient structural switching without affecting installation and transportation efficiency.

[0010] Optionally, an elastic abutment pad is fixed on the top surface of the cabinet.

[0011] By adopting the above technical solution, when the support plate slides down to the storage state, the elastic abutment pad can form a flexible buffer support for the support plate, avoid hard contact between the support plate and the top surface of the cabinet, reduce wear caused by collision between the two during transportation, and protect the structural integrity of the support plate and the cabinet.

[0012] Optionally, a limiting groove is formed on the top surface of the elastic abutment pad.

[0013] By adopting the above technical solution, a limiting groove is opened on the top surface of the elastic abutment pad, which can store and limit the cables or other debris in the distribution cabinet, avoid the cables from being messy and tangled or exposed, reduce the damage to the cables caused by outdoor wind, sun and rain erosion, and reduce the risk of line failure.

[0014] Optionally, the support plate has dovetail notches on its left and right sides, and an elastic snap-fit ​​component is provided on the bottom wall of the dovetail notch; a first slide rail is fixed on the side of the two positioning plates that are close to each other and slides in slidable engagement with the dovetail notch; a second slide rail is fixed on the side of the two extension plates that are close to each other and slides in slidable engagement with the dovetail notch when the two extension plates are in the support state; and positioning grooves for the elastic snap-fit ​​component to be snapped into are provided on both the first slide rail and the second slide rail.

[0015] By adopting the above technical solution, the dovetail notch slides and engages with the first and second slide rails, and the elastic snap-fit ​​component engages with the positioning groove, so that the support plate can be accurately positioned in both the installation and storage states, thereby improving the stability of the support plate during the sliding process and preventing the support plate from shifting or shaking.

[0016] Optionally, the elastic snap-fit ​​component includes a compression spring and an arc-shaped protrusion. The inner wall of the dovetail notch is provided with a placement groove for inserting the compression spring and the arc-shaped protrusion. The compression spring presses one side of the arc-shaped protrusion, causing a part of the arc-shaped protrusion to protrude from the opening of the placement groove.

[0017] By adopting the above technical solution, the elastic squeezing action of the compression spring can keep the arc-shaped protrusion in a protruding state, ensuring precise engagement with the positioning groove and achieving stable positioning of the support plate; the arc-shaped structure of the arc-shaped protrusion facilitates smooth disengagement or engagement with the positioning groove during sliding, reducing sliding resistance and making operation easier, while the compression spring can provide continuous elastic force to ensure the stability of the engagement and prevent loosening.

[0018] Optionally, the locking component includes a locking plate rotatably mounted on the upper edge of the extension plate in the support state, and a locking rod rotatably connected to the top surface of the support plate in the middle; the rotating surface of the locking rod is parallel to the top surface of the support plate, and the locking rod can rotate to a fixed state parallel to the length direction of the support plate; both ends of the locking rod are coaxially fixed with elastic telescopic rods with elastic shortening properties, and the ends of the elastic telescopic rods away from the locking rod are coaxially rotatably mounted with locking hooks; when the support plate is in the installation state, the two locking plates can rotate towards each other to a horizontally limited state abutting against the top surface of the support plate, and locking rings are fixed on the sides of the two locking plates that are close to each other at this time, and the locking hooks engage with the locking rings when the locking rod rotates to the fixed state.

[0019] By adopting the above technical solution, and utilizing the cooperation of the locking plate, locking rod, elastic telescopic rod, and locking hook, a stable locking can be achieved when the support plate is in the installation state. The locking plate rotates to the horizontal limit state, the locking rod rotates to the fixed state, and the locking hook engages with the locking ring, firmly fixing the support plate and the extension plate. This prevents the support plate from loosening or shifting due to outdoor wind loads and other factors, ensuring the stability of the camera after installation. At the same time, the locking structure can be quickly unlocked, facilitating later maintenance and disassembly.

[0020] Optionally, the locking rod can be rotated to a positioning state perpendicular to the length direction of the support plate. One of the two locking plates has a first slot on the side near the front of the cabinet, and the other locking plate has a second slot on the side near the back of the cabinet. When the locking rod is in the positioning state, the two extension plates can be adjusted to a protective state. At this time, the two locking plates can be rotated to a tight position against the top surface of the extension plates. One of the two locking hooks is engaged in the first slot, and the other locking hook is engaged in the second slot.

[0021] By adopting the above technical solution, the locking lever can be switched to the positioning state. Combined with the engagement of the first and second slots and the locking hooks, effective locking can be achieved when the extension plate is in the protective state. After the two locking plates rotate back-to-back and abut against each other, the locking hooks respectively engage with their corresponding slots, fixing the extension plate and the locking plates in place. This ensures that the extension plate will not rotate arbitrarily during transportation, and the support plate is securely stored, further guaranteeing the integrity of the components during transportation, avoiding damage caused by structural loosening, and improving transportation safety.

[0022] Optionally, both the first and second card slots are provided with guide slopes at the opening edges.

[0023] By adopting the above technical solution, the opening edges of the first and second slots are provided with guide slopes, which can guide the locking hook when it is inserted into the slot, reduce the difficulty of locking, and enable the locking hook to be inserted into the corresponding slot quickly and smoothly, thereby improving the convenience of locking operation.

[0024] Optionally, when the locking plate is in the horizontal limiting state, a number of movable wheels are fixed on the bottom surface, and a storage groove is opened on the top surface of the support plate; when the locking plate is in the abutting state, the movable wheels are located on the side of the locking plate away from the cabinet, and the movable wheels can rotate with the cabinet and abut against the ground to assist the movement of the power distribution cabinet; when the locking plate is in the horizontal limiting state, the movable wheels are placed in the storage groove.

[0025] By adopting the above technical solution, in the installed state, the moving wheels are stored in the sink, which does not affect the normal installation and use of the power distribution cabinet; when transporting short distances, the moving wheels are exposed and contact the ground after the cabinet is flipped over, which can help the power distribution cabinet to move easily, reduce the difficulty of transportation, and avoid damage to the cabinet during transportation. At the same time, the moving wheel storage design does not take up extra space, taking into account both practicality and convenience.

[0026] In summary, this application includes the following beneficial technical effects: In this application, by utilizing the structure of the positioning plate, extension plate, support plate, and locking component, the camera can be directly installed on the support plate through the support through hole, eliminating the need for additional drilling on the wall above the distribution cabinet. This avoids the problem of loosening, slippage, or falling off of the cabinet fastening screws due to drilling vibration, while protecting the integrity of the wall structure without damaging the wall. This effectively improves the reliability of the distribution cabinet installation, ensures electrical safety, and makes camera installation convenient, adapting to the protection needs of external monitoring, and taking into account both installation standardization and anti-theft and anti-electricity theft effects. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram illustrating the installation and cooperation of the support plate and locking component in an embodiment of this application; Figure 3 This is a schematic diagram illustrating the installation and cooperation of the support plate and the positioning plate in an embodiment of this application; Figure 4 This is an exploded structural diagram illustrating the installation distribution of the support plate, extension plate, and locking element according to an embodiment of this application; Figure 5 This is a partial cross-sectional view of an embodiment of the present application illustrating the installation and cooperation of the extension plate and the support plate; Figure 6 yes Figure 5 An enlarged schematic diagram of part A in the middle; Figure 7 This is a partial cross-sectional view of an embodiment of the present application illustrating the installation and cooperation of the locking plate and the locking rod; Figure 8 This is a partial cross-sectional view of an embodiment of the present application illustrating the installation and cooperation of the elastic telescopic rod and the locking hook; Figure 9 yes Figure 8 Enlarged schematic diagram of part B in the middle; Figure 10 This is a partial cross-sectional view of the structure of the mobile wheel installation and storage in an embodiment of this application; Figure 11 This is a schematic diagram illustrating the installation and cooperation of the moving wheel and the locking plate in an embodiment of this application.

[0028] In the diagram: 1. Cabinet body; 11. Positioning plate; 12. First slide rail; 13. Elastic abutment pad; 131. Limiting groove; 2. Cabinet door; 3. Extension plate; 31. Second slide rail; 311. Positioning groove; 4. Support plate; 41. Support through hole; 42. Dovetail notch; 421. Placement slot; 43. Elastic snap fastener; 431. Compression spring; 432. Arc-shaped protrusion; 44. Storage groove; 5. Locking component; 51. Locking plate; 511. First slot; 5111. Guide slope; 512. Second slot; 513. Locking ring; 52. Locking rod; 53. Elastic telescopic rod; 531. Locking hook; 54. Moving wheel. Detailed Implementation

[0029] The present application will be further described in detail below with reference to all the accompanying drawings. Example

[0030] Reference Figure 1 and Figure 2 A smart power distribution cabinet includes a cabinet body 1 and a cabinet door 2 that is rotatably installed on the front side of the cabinet body 1; a vertically upward positioning plate 11 is fixed on the left and right edges of the top surface of the cabinet body 1, and a vertically upward extension plate 3 is detachably installed on the top surface of the positioning plate 11; a support plate 4 in the installation state is provided on the upper part of the cabinet body 1 along the horizontal direction, and a locking member 5 is provided on the upper part of the extension plate 3. When the support plate 4 is in a horizontal state, its left and right edges are detachably connected to the upper sides of the two extension plates 3 that are close to each other by locking parts 5, and a support through hole 41 is provided on the bottom surface of the support plate 4; when the distribution cabinet is installed and applied, the back side of the cabinet 1 is fixed to the corresponding wall with screws in advance, and then the camera is fixed to the bottom surface of the support plate 4 by screwing it into the support through hole 41.

[0031] Reference Figure 2 and Figure 3 The left and right sides of the support plate 4 are slidably connected to the sides of the two extension plates 3 that are close to each other, and the left and right sides of the support plate 4 are slidably connected to the sides of the two positioning plates 11 that are close to each other; the bottom surface of the extension plate 3 is rotatably connected to the bottom surface of the positioning plate 11, and the rotating surface of the extension plate 3 is parallel to the front side of the cabinet 1; a rubber elastic abutment pad 13 is fixed on the top surface of the cabinet 1, and a limiting groove 131 for placing cables or other debris is opened on the top surface of the elastic abutment pad 13. When installing and applying this distribution cabinet, rotate the two extension plates 3 back to back to a vertically upward supporting state, then slide the support plate 4 up to an installation state flush with the top surface of the extension plates 3, and finally fix it with the locking piece 5; when shipping this distribution cabinet from the factory, slide the support plate 4 down to a storage state where it abuts against the elastic abutment pad 13 on the top surface of the cabinet 1, then rotate the two extension plates 3 towards each other to a horizontal protective state covering the support plate 4, and finally fix it with the locking piece 5, thus reducing the volume during transportation.

[0032] Reference Figure 4 , Figure 5 and Figure 6 The support plate 4 has dovetail notches 42 on its left and right sides. The bottom wall of the dovetail notches 42 is provided with an elastic snap-fit ​​component 43. The elastic snap-fit ​​component 43 includes a compression spring 431 and an arc-shaped protrusion 432. The inner wall of the dovetail notches 42 is provided with a placement groove 421 for the compression spring 431 and the arc-shaped protrusion 432 to be inserted. The compression spring 431 presses one side of the arc-shaped protrusion 432 so that a part of the arc-shaped protrusion 432 protrudes from the opening of the placement groove 421. The two positioning plates 11 are fixedly provided with a first slide rail 12 that slides in cooperation with the dovetail notch 42 on their adjacent sides. When the two extension plates 3 are in the support state, the two adjacent sides are fixedly provided with a second slide rail 31 that slides in cooperation with the dovetail notch 42. The first slide rail 12 and the second slide rail 31 are both provided with positioning grooves 311 for the elastic snap-fit ​​member 43 to be snapped into. When the support plate 4 is in the installation state and the storage state, the elastic snap-fit ​​member 43 is snapped into the corresponding positioning groove 311 to improve the corresponding installation stability.

[0033] Reference Figure 7 The locking component 5 includes a locking plate 51 rotatably mounted on the upper edge of the extension plate 3 in the supported state, and a locking rod 52 rotatably connected to the top surface of the support plate 4 in the middle. The rotating surface of the locking rod 52 is parallel to the top surface of the support plate 4, and the locking rod 52 can rotate to a fixed state parallel to the length direction of the support plate 4. Both ends of the locking rod 52 are coaxially fixed with elastic telescopic rods 53 with elastic shortening performance. The end of the elastic telescopic rod 53 away from the locking rod 52 is coaxially rotatably mounted with a locking hook 531. The elastic telescopic rod 53 is a conventional telescopic structure with an internal spring, which will not be described in detail here. When the support plate 4 is in the installation state, the two locking plates 51 can rotate towards each other to a horizontal limit state that abuts against the top surface of the support plate 4. At this time, the two locking plates 51 are fixed with locking rings 513 on their sides that are close to each other. When the distribution cabinet is installed and used, the two extension plates 3 are in the support state and the support plate 4 is in the installation state. Then, the locking plates 51 are adjusted to the horizontal limit state and the locking rod 52 is rotated to the fixed state. At this time, the locking hook 531 is engaged with the locking ring 513, thereby locking and limiting the support plate 4 and extension plate 3 in this state.

[0034] Reference Figure 8 and Figure 9 The locking rod 52 can be rotated to a positioning state perpendicular to the length direction of the support plate 4. One of the two locking plates 51 has a first slot 511 on the side near the front of the cabinet 1, and the other locking plate 51 has a second slot 512 on the side near the back of the cabinet 1. Both the first slot 511 and the second slot 512 have guide slopes 5111 at the opening edges. When the distribution cabinet is shipped from the factory, the locking rod 52 is pre-adjusted to the positioning state, the support plate 4 is moved down, the two extension plates 3 are adjusted to the protective state, and then the two locking plates 51 are rotated back to back to the abutting state with the top surface of the extension plate 3. At this time, one of the two locking hooks 531 is inserted into the first slot 511, and the other locking hook 531 is inserted into the second slot 512 to achieve the limiting and locking of the two extension plates 3 and the locking plate 51 in this state.

[0035] Reference Figure 10 and Figure 11 When the locking plate 51 is in the horizontal limit state, two moving wheels 54 are fixed on the bottom surface, and a storage groove 44 is opened on the top surface of the support plate 4; when the distribution cabinet is installed and used, the locking plate 51 is in the horizontal limit state, and the moving wheels 54 are placed in the storage groove 44. When the distribution cabinet needs to be moved a short distance, the locking plate 51 is in a tight position. At this time, the moving wheel 54 is located on the side of the locking plate 51 away from the cabinet 1. After the cabinet 1 is flipped, the moving wheel 54 comes into contact with the ground to assist the distribution cabinet in moving.

[0036] The implementation principle of this application embodiment is as follows: During installation, first fix the back of cabinet 1 to the wall with screws, then rotate the two extension plates 3 back to back to the vertical support state, slide the support plate 4 up to be flush with the top surface of the extension plate 3, and the elastic snap-fit ​​piece 43 in the dovetail notch 42 snaps into the positioning groove 311 on the second slide rail 31 to achieve initial fixation; then rotate the locking plate 51 to the horizontal limit state and the locking rod 52 to the fixed state, and the locking hook 531 snaps into the locking ring 513 to complete the locking. Finally, fix the camera to the bottom surface of the support plate 4 through the support through hole 41. At the same time, the elastic abutment pad 13 on the top surface of cabinet 1 can store cables to ensure neat installation.

[0037] During factory transport, the support plate 4 is first slid down to the storage state where it abuts against the elastic abutment pad 13. The elastic snap fastener 43 is snapped into the positioning groove 311 of the first slide rail 12. Then, the locking rod 52 is rotated to the positioning state. Next, the two extension plates 3 are rotated to the horizontal position and covered above the support plate 4 to form protection. The locking plates 51 are rotated to the tight position with their backs to each other. The two locking hooks 531 are respectively snapped into the corresponding first slot 511 and second slot 512 to achieve limit locking, greatly reducing the transport volume and avoiding damage to the components.

[0038] When transporting over short distances, keep the locking plate 51 in a tight position. At this time, the moving wheel 54 is exposed and located outside the locking plate 51. After flipping the cabinet 1, the moving wheel 54 comes into contact with the ground, which can help the power distribution cabinet move easily. In the installation state, the moving wheel 54 is stored in the storage groove 44 of the support plate 4, which does not affect normal use and realizes flexible switching between installation and transportation functions.

[0039] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. An intelligent power distribution cabinet, comprising a cabinet body (1), a cabinet door (2) rotatably installed on the front side of the cabinet body (1); characterized in that, A vertically upward positioning plate (11) is fixed on the left and right edges of the top surface of the cabinet (1), and a vertically upward extension plate (3) can be detachably installed on the top surface of the positioning plate (11). The cabinet (1) is provided with a support plate (4) in the installation state along the horizontal direction above it, and a locking member (5) is provided on the upper part of the extension plate (3). When the support plate (4) is in the horizontal state, the left and right edges are detachably connected to the upper sides of the two extension plates (3) that are close to each other through the locking member (5). Several support through holes (41) for camera installation are provided on the bottom surface of the support plate (4).

2. The intelligent power distribution cabinet of claim 1, wherein, The left and right sides of the support plate (4) are slidably connected to the sides of the two extension plates (3) that are close to each other, and the left and right sides of the support plate (4) are slidably connected to the sides of the two positioning plates (11) that are close to each other; the bottom surface of the extension plate (3) is rotatably connected to the bottom surface of the positioning plate (11), and the rotating surface of the extension plate (3) is parallel to the front side of the cabinet (1). The two extension plates (3) can be rotated to a vertically upward support state, and the support plate (4) can slide up to an installation state that is flush with the top surface of the extension plate (3) and be fixed by locking piece (5); the support plate (4) can slide down to a storage state that abuts against the top surface of the cabinet (1), and the two extension plates (3) can be rotated to a horizontal protective state that covers the support plate (4) and be fixed by locking piece (5).

3. The intelligent power distribution cabinet according to claim 2, characterized in that, An elastic abutment pad (13) is fixed on the top surface of the cabinet (1).

4. The intelligent power distribution cabinet according to claim 3, characterized in that, A limiting groove (131) is provided on the top surface of the elastic abutment pad (13).

5. The intelligent power distribution cabinet according to claim 2, characterized in that, The support plate (4) has dovetail notches (42) on its left and right sides, and elastic snap-fit ​​pieces (43) are provided on the bottom wall of the dovetail notches (42). The two positioning plates (11) are fixed with a first slide rail (12) that slides in cooperation with the dovetail notch (42) on their side surfaces that are close to each other. When the two extension plates (3) are in a supported state, the two side surfaces that are close to each other are fixed with a second slide rail (31) that slides in cooperation with the dovetail notch (42). The first slide rail (12) and the second slide rail (31) are both provided with positioning grooves (311) for the elastic snap-fit ​​piece (43) to be snapped into.

6. The intelligent power distribution cabinet according to claim 5, characterized in that, The elastic snap-fit ​​component (43) includes a compression spring (431) and an arc-shaped protrusion (432). The inner wall of the dovetail notch (42) is provided with a placement groove (421) for inserting the compression spring (431) and the arc-shaped protrusion (432). The compression spring (431) squeezes one side of the arc-shaped protrusion (432) so that a part of the arc-shaped protrusion (432) protrudes from the opening of the placement groove (421).

7. The intelligent power distribution cabinet according to claim 2, characterized in that, The locking member (5) includes a locking plate (51) rotatably mounted on the upper edge of the extension plate (3) in the support state, and a locking rod (52) rotatably connected to the top surface of the support plate (4) in the middle; the rotating surface of the locking rod (52) is parallel to the top surface of the support plate (4), and the locking rod (52) can rotate to a fixed state parallel to the length direction of the support plate (4). The two ends of the locking rod (52) are coaxially fixed with elastic telescopic rods (53) having elastic shortening properties. The end of the elastic telescopic rod (53) away from the locking rod (52) is coaxially rotatably mounted with a locking hook (531). When the support plate (4) is in the installation state, the two locking plates (51) can rotate towards each other to a horizontal limit state that abuts against the top surface of the support plate (4). At this time, the two locking plates (51) are fixed with locking rings (513) on their sides that are close to each other. When the locking rod (52) is rotated to the fixed state, the locking hook (531) engages with the locking ring (513).

8. The intelligent power distribution cabinet according to claim 7, characterized in that, The locking rod (52) can be rotated to a positioning state perpendicular to the length direction of the support plate (4). One of the two locking plates (51) has a first slot (511) on the side near the front of the cabinet (1), and the other locking plate (51) has a second slot (512) on the side near the back of the cabinet (1). When the locking lever (52) is in the positioning state, the two extension plates (3) can be adjusted to the protective state. At this time, the two locking plates (51) can be rotated to the abutting state with the top surface of the extension plate (3). One of the two locking hooks (531) is inserted into the first slot (511), and the other locking hook (531) is inserted into the second slot (512).

9. The intelligent power distribution cabinet according to claim 8, characterized in that, The first card slot (511) and the second card slot (512) are both provided with guide slopes (5111) at the opening edges.

10. The intelligent power distribution cabinet according to claim 8, characterized in that, When the locking plate (51) is in a horizontal limiting state, a number of moving wheels (54) are fixed on the bottom surface, and a receiving groove (44) is opened on the top surface of the support plate (4). When the locking plate (51) is in a clamping state, the moving wheel (54) is located on the side of the locking plate (51) away from the cabinet (1). At this time, the moving wheel (54) can rotate with the cabinet (1) and then contact the ground to assist the power distribution cabinet in moving. When the locking plate (51) is in a horizontal limit state, the moving wheel (54) is placed in the storage sink (44).

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