A leakage protection distribution cabinet

Abstract

This invention discloses a cabinet comprising a hollow interior with an opening on one side, two sets of moisture-proof mechanisms, a lifting mechanism, and a power-off mechanism. The cabinet has a door hinged to the opening. The moisture-proof mechanisms are located on both sides of the cabinet for ventilation, heat dissipation, and protection from wind and rain. The lifting mechanism is located at the bottom of the cabinet for adjusting its height. The power-off mechanism is located inside the cabinet and above the moisture-proof mechanisms to promptly cut off power in case of water ingress. This invention addresses the technical problem of electrical leakage in distribution cabinets.

Description

Technical Field

[0001] This invention belongs to the field of power distribution cabinet technology, and particularly relates to a leakage-proof power distribution cabinet. Background Technology

[0002] Distribution cabinets are divided into power distribution cabinets, lighting distribution cabinets, and metering cabinets, and are the final-level equipment in a power distribution system. Distribution cabinets are a general term for motor control centers. Distribution cabinets are used in situations where the load is relatively dispersed and there are few circuits; motor control centers are used in situations where the load is concentrated and there are many circuits. They distribute the electrical energy from a circuit of the upstream distribution equipment to the nearest load. This level of equipment should provide protection, monitoring, and control for the load. As the core equipment for power distribution, control, and protection in a power system, distribution cabinets are widely used in various scenarios such as industrial production, commercial buildings, and residential buildings. Their operational stability is directly related to the safety and reliability of the power supply.

[0003] Over long-term use, electrical distribution cabinets are increasingly prone to leakage problems caused by factors such as aging wiring, damaged insulation, moisture intrusion, and dust accumulation. Leakage not only wastes electrical energy but can also lead to electric shocks, equipment burnout, and even fires, posing a significant threat to human life and property. Summary of the Invention

[0004] To address the above problems, the present invention provides a leakage-proof power distribution cabinet.

[0005] To achieve the above objectives, the present invention provides a leakage-proof distribution cabinet, comprising a hollow cabinet body with an opening on one side, two sets of moisture-proof mechanisms, a lifting mechanism, and a power-off mechanism. The cabinet body has a door hinged at the opening. The moisture-proof mechanisms are located on both sides of the cabinet body for ventilation, heat dissipation, and protection from wind and rain. The lifting mechanism is located at the bottom of the cabinet body for adjusting the height of the cabinet body. The power-off mechanism is located inside the cabinet body and above the moisture-proof mechanisms for timely power cut-off when water enters the cabinet body.

[0006] Optionally, the cabinet has grooves at both ends along its length direction and grooves along its height direction. Two sets of moisture-proof mechanisms are symmetrically arranged in the two grooves. Each groove has an L-shaped plate fixed at one end along its length direction. The L-shaped plate is arranged along the height direction of the groove, and a gap is left between the L-shaped plate and the cabinet side wall it is close to.

[0007] Optionally, each set of moisture-proof mechanisms includes multiple moisture-proof boards, multiple first rotating plates, second rotating plates, and connecting rods. The multiple moisture-proof boards are arranged sequentially along the height direction of the groove. Each moisture-proof board has an L-shaped groove at both its top and bottom. The top L-shaped groove extends upward along the top edge of the moisture-proof board and bends in an L-shape, while the bottom L-shaped groove extends downward along the bottom edge of the moisture-proof board and bends in an L-shape. The multiple moisture-proof boards are all positioned between the L-shaped board in the groove and the cabinet side wall away from it. A rotating shaft is fixed at the center of each moisture-proof board. One end of the rotating shaft passes through the L-shaped board and is rotatably connected to it, while the other end is rotatably connected to the cabinet side wall.

[0008] Optionally, multiple first rotating plates correspond one-to-one with multiple moisture-proof plates. Each first rotating plate is respectively set in the gap between the L-shaped plate and the side wall of the cabinet. One end of the first rotating plate along its length is fixedly connected to the end of the rotating shaft passing through the L-shaped plate. Each first rotating plate is set along the length of the cabinet. The second rotating plate is set along the height of the cabinet and is rotatably connected to the end of the multiple first rotating plates away from the rotating shaft through a rotating rod. The bottom wall of the cabinet is provided with a sliding groove. One end of the connecting rod is fixedly connected to the bottom end of the second rotating plate, and the other end passes through the sliding groove and extends into the lifting mechanism, and is slidably connected to the cabinet.

[0009] Optionally, an installation plate parallel to the bottom surface of the cabinet is provided below the cabinet. The lifting mechanism is mounted on the installation plate, and a protective cover is fixed on the installation plate. The protective cover is used to cover the lifting mechanism and is slidably connected to the side wall of the cabinet. The lifting mechanism includes a lifting component and a driving component. There are two sets of lifting components, which are spaced apart between the installation plate and the bottom surface of the cabinet.

[0010] Optionally, each lifting assembly includes a first mounting base, a second mounting base, a first hinge plate, a second hinge plate, a screw, a limiting plate, a third hinge plate, and a fourth hinge plate. The first mounting base is fixed on the mounting plate, and the second mounting base is fixed on the bottom surface of the cabinet directly above the first mounting base. The bottom ends of the first and second hinge plates are respectively hinged to the first mounting base. The screw is positioned above the first mounting base, and the threads at both ends of the screw are in opposite directions. Slider blocks are threaded to the two ends of the screw with opposite thread directions. There are two limiting plates. The two ends of the screw pass through the two limiting plates and are rotatably connected to them, and the two ends are rotatably connected to the side wall of the protective cover. The top ends of the first and second hinge plates are respectively hinged to the bottom surfaces of the two sliders. The bottom ends of the third and fourth hinge plates are respectively hinged to the top surfaces of the two sliders, and the top ends are both hinged to the second mounting base. The driving assembly is used to drive the two screws to rotate synchronously.

[0011] Optionally, the drive assembly includes a first motor, a first pulley, a second pulley, and a belt. The first motor is fixed on the side of one of the limiting plates away from the screw, and the output shaft of the first motor is fixedly connected to one end of the screw closest to it. The first pulley is fixed on the output shaft of the first motor, and the second pulley is fixed on one end of the other screw that passes through the limiting plate. The belt is wound around the first pulley and the second pulley.

[0012] Optionally, the power-off mechanism includes a receiving box, a second motor, a switch, a first connecting rod, a second connecting rod, and a mounting block. The receiving box is hollow inside and open at both ends, and is fixedly installed inside the cabinet above one of the moisture-proof mechanisms by bolts. The second motor is fixed inside the receiving box at one end along its length. The switch is fixed inside the receiving box on one side of the second motor. The switch includes a cooperating stationary contact and a moving contact. The stationary contact is fixed on the top surface inside the receiving box. The moving contact is linked with the mounting block, causing the moving contact to move closer to or away from the stationary contact. When the two are in contact, the circuit is connected; when they are separated, the circuit is disconnected.

[0013] Optionally, the output shaft of the second motor is oriented towards the switch, the first connecting rod and the second connecting rod are both arranged along the height direction of the cabinet, one end of the first connecting rod is fixedly connected to the output shaft of the second motor, the mounting block is fixedly connected to the moving contact of the switch, the second connecting rod is arranged between the first connecting rod and the moving contact of the switch, one end of the second connecting rod is rotatably connected to the first connecting rod through a pin, and the other end is fixedly connected to the moving contact of the switch through a connecting block.

[0014] Optionally, an ammeter is fixed on the top surface of the housing box. The current detection end of the ammeter is connected in series with the main circuit of the power distribution cabinet, and the signal output end is electrically connected to the control end of the second motor. When the current value of the main circuit exceeds a preset safety threshold, a drive signal is sent to the second motor to drive the output shaft of the second motor to rotate, thereby causing the moving contact of the switch to separate from the stationary contact.

[0015] The beneficial effects of this invention are as follows: 1. This invention uses a lifting mechanism to raise the cabinet in bad weather, and works in conjunction with the moisture-proof mechanism to achieve wind and rain protection and ventilation and heat dissipation, reducing the risk of rainwater intrusion; at the same time, the power-off mechanism can monitor the current in real time through an ammeter, and automatically cut off the circuit when the current exceeds the limit (caused by water ingress or overload), providing double protection to avoid leakage accidents.

[0016] 2. When the lifting mechanism of the present invention is activated, it can drive the moisture-proof mechanism to open and close synchronously through the connecting rod, without the need for additional manual adjustment of the moisture-proof board. This ensures the flexibility of cabinet height adjustment and can adapt to ventilation and rain protection needs under different weather conditions, thereby improving the ease of use of the equipment. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a partial cross-sectional view of the moisture-proof mechanism.

[0020] Figure 3 yes Figure 2 Enlarged view of part A in the image.

[0021] Figure 4 This is a partial sectional view of the lifting mechanism.

[0022] Figure 5 yes Figure 4 Enlarged view of part B in the image.

[0023] Figure 6 This is a partial cross-sectional view to show the power-off mechanism.

[0024] Explanation of reference numerals in the attached figures 1. Cabinet body; 11. Cabinet door; 12. Groove; 13. L-shaped panel; 14. Slide rail; 2. Moisture-proof mechanism; 21. Moisture-proof board; 22. First rotating plate; 23. Second rotating plate; 24. Connecting rod; 25. L-shaped groove; 26. Rotating shaft; 3. Lifting mechanism; 31. Lifting assembly; 311. First mounting base; 312. Second mounting base; 313. First hinge plate; 314. Second hinge plate; 315. Screw; 31 51. Slider; 316. Limiting plate; 317. Third hinge plate; 318. Fourth hinge plate; 32. Drive assembly; 321. First motor; 322. First pulley; 323. Second pulley; 324. Belt; 4. Power-off mechanism; 41. Receiving box; 42. Second motor; 43. Knife switch; 44. First connecting rod; 45. Second connecting rod; 46. Mounting block; 47. Ammeter; 5. Mounting plate; 6. Protective cover. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Reference Figure 1-4A leakage-proof distribution cabinet includes a cabinet body 1, a moisture-proof mechanism 2, a lifting mechanism 3, and a power-off mechanism 4. The cabinet body 1 is hollow internally with an opening on one side, and a cabinet door 11 is hinged to the opening. When the cabinet door 11 is closed, the entire cabinet body 1 is in a sealed state. The moisture-proof mechanism 2 is located on both sides of the cabinet body 1 for ventilation, heat dissipation, and protection from wind and rain. The lifting mechanism 3 is located below the cabinet body 1 for adjusting the height of the cabinet body 1 and simultaneously opening and closing the moisture-proof mechanism 2. The power-off mechanism 4 is located inside the cabinet body 1 above the moisture-proof mechanism 2 to promptly cut off the power when water enters the cabinet body 1.

[0027] When the distribution cabinet is operating normally, the moisture-proof mechanisms on both sides of the cabinet 1 can be opened to achieve ventilation and heat dissipation, and can also be closed to prevent rainwater from entering and maintain a dry environment inside the cabinet 1. The lifting mechanism 3 under the cabinet 1 can adjust the height of the cabinet 1 according to the terrain to prevent water from the ground from flooding into the cabinet 1, and also drives the opening and closing of the moisture-proof mechanism 2. When a small amount of water seeps into the cabinet 1 due to extreme weather or other special circumstances, the power-off mechanism 4 located above the moisture-proof mechanism 2 will quickly detect the water accumulation signal inside the cabinet 1 and trigger the power-off action to cut off the power supply circuit of the distribution cabinet, thereby preventing safety accidents such as leakage and short circuit caused by water entering the cabinet 1, and ensuring the safety of the distribution cabinet, surrounding electrical equipment and personnel.

[0028] Reference Figure 1-3The cabinet 1 has grooves 12 at both ends along its length, and the grooves 12 are arranged along the height of the cabinet 1. Two sets of moisture-proof mechanisms 2 are symmetrically arranged at the two grooves 12. Each groove 12 has an L-shaped plate 13 at one end along its length, and the L-shaped plate 13 is arranged along the height of the groove 12. The short side of the L-shaped plate 13 is fixedly connected to the adjacent side wall of the cabinet 1, leaving a gap between the long side of the L-shaped plate 13 and the adjacent side wall of the cabinet 1. Each moisture-proof mechanism 2 includes a moisture-proof board 21, a first rotating plate 22, a second rotating plate 23, and a connecting rod 24. Multiple moisture-proof boards 21 are arranged sequentially along the height of the groove 12. Each moisture-proof board 21 has an L-shaped groove 25 at its top, extending upwards along the top edge and bending in an L-shape. Each moisture-proof board 21 also has an L-shaped groove 25 at its bottom, extending downwards along the bottom edge and bending in an L-shape. Multiple moisture-proof boards 21 are positioned between the long side of the L-shaped board 13 in the groove 12 and the side wall of the cabinet 1 furthest away from it. A rotating shaft 26 is fixed at the center of each moisture-proof board 21, with one end passing through the L-shaped board 13 and rotatably connected to it, and the other end rotatably connected to the side wall of the cabinet 1. Multiple first rotating plates 22 correspond one-to-one with the multiple moisture-proof boards 21. Each first rotating plate 22 is respectively disposed in the gap between the L-shaped plate 13 and the side wall near the cabinet 1, and one end of the first rotating plate 22 along its length is fixedly connected to the end of the rotating shaft 26 passing through the L-shaped plate 13. Each first rotating plate 22 is disposed along the length of the cabinet 1, and the second rotating plate 23 is disposed along the height of the cabinet 1, and is rotatably connected to the ends of the multiple first rotating plates 22 away from the rotating shaft 26 through a rotating rod. A sliding groove 14 is provided on the bottom wall of the cabinet 1, one end of the connecting rod 24 is fixedly connected to the bottom end of the second rotating plate 23, and the other end passes through the sliding groove 14 and extends into the lifting mechanism 3, and is slidably connected to the cabinet 1.

[0029] When the lifting mechanism 3 adjusts the height of the cabinet 1, it will simultaneously drive the connecting rod 24 to move along the height direction of the cabinet 1, thereby pushing the second rotating plate 23 to move. The second rotating plate 23 drives multiple first rotating plates 22 to rotate synchronously through the rotating rod. Since the first rotating plate 22 is fixedly connected to the rotating shaft 26 at the center of the moisture-proof plate 21, and the two ends of the rotating shaft 26 are respectively rotatably connected to the L-shaped plate and the side wall of the cabinet 1, the rotation of the first rotating plate 22 will drive multiple moisture-proof plates 21 to rotate around the rotating shaft 26, so that the L-shaped grooves at the top and bottom of the moisture-proof plate 21 can engage or disengage, realizing the opening and closing of the moisture-proof plate 21. At the same time, in conjunction with the gap structure between the L-shaped plate and the side wall of the cabinet 1, the opening and closing of the moisture-proof mechanism 2 is completed during the lifting and adjusting of the cabinet 1, effectively preventing external rainwater from entering the interior of the cabinet 1, reducing the risk of leakage caused by water entering the cabinet 1, and ensuring the safe operation of the distribution cabinet.

[0030] Reference Figure 1-5 A mounting plate 5 is provided below the cabinet 1, and the mounting plate 5 is parallel to the bottom surface of the cabinet 1. The bottom end of the connecting rod 24 is hinged to the mounting plate 5. The lifting mechanism 3 is provided on the mounting plate 5, and a protective cover 6 is fixed on the mounting plate 5 to cover the lifting mechanism 3. The protective cover 6 is slidably connected to the side wall of the cabinet 1, so that the bottom of the cabinet 1 will not detach from the protective cover 6 during the lifting process of the cabinet 1. The lifting mechanism 3 includes a lifting component 31 and a drive component 32. There are two sets of lifting components 31, which are spaced apart between the mounting plate 5 and the bottom surface of the cabinet 1. Each set of lifting components 31 includes a first mounting seat 311, a second mounting seat 312, a first hinge plate 313, a second hinge plate 314, a screw 315, a limit plate 316, a third hinge plate 317, and a fourth hinge plate 318. The first mounting seat 311 is fixed on the mounting plate 5, and the second mounting seat 312 is fixed directly above the first mounting seat 311 on the bottom surface of the cabinet 1. The bottom ends of the first hinge plate 313 and the second hinge plate 314 are respectively hinged to the first mounting base 311. A screw 315 is positioned above the first mounting base 311, with its two ends having opposite thread directions. Slider blocks 3151 are threadedly connected to the two ends of the screw 315 with opposite thread directions. Two limiting plates 316 are present; the two ends of the screw 315 pass through and are rotatably connected to the two limiting plates 316, and are rotatably connected to the protective cover 6 at both ends. The top ends of the first hinge plate 313 and the second hinge plate 314 are respectively hinged to the bottom surfaces of the two sliders 3151. The bottom ends of the third hinge plate 317 and the fourth hinge plate 318 are respectively hinged to the top surfaces of the two sliders 3151, and their top ends are both hinged to the second mounting base 312. The drive assembly 32 drives the two screws 315 to rotate synchronously.

[0031] In use, when the drive assembly 32 is activated, causing the screws 315 of the two sets of lifting assemblies 31 to rotate synchronously, the two sliders 3151 connected to the screws 315 will move towards or away from each other along the axial direction of the screws 315, since the threads at both ends of the screws 315 are in opposite directions. This will cause the first hinge plate 313 and the second hinge plate 314, which are respectively hinged to the bottom surface of the sliders 3151, and the third hinge plate 317 and the fourth hinge plate 318, which are hinged to the top surface of the sliders 3151, to rotate synchronously. The angle change of the hinge plate 314 with the third hinge plate 317 and the fourth hinge plate 318 causes a change in the vertical distance between the second mounting base 312 fixed on the bottom surface of the cabinet 1 and the first mounting base 311 fixed on the mounting plate 5, thereby realizing the height adjustment of the cabinet 1. At the same time, the protective cover on the mounting plate 5 can protect the lifting mechanism 3, and the protective cover is slidably connected to the side wall of the cabinet 1. With the linkage opening and closing action of the moisture-proof mechanism 2, it further avoids the risk of leakage caused by water accumulation on the ground or rainwater entering the cabinet 1.

[0032] Reference Figure 1-5The drive assembly 32 includes a first motor 321, a first pulley 322, a second pulley 323, and a belt 324. The first motor 321 is fixed to the side of one of the limiting plates 316 away from the screw 315, and the output shaft of the first motor 321 is fixedly connected to one end of the screw 315 adjacent to it. The first pulley 322 is fixed to the output shaft of the first motor 321, and the second pulley 323 is fixed to the end of the other screw 315 that passes through the limiting plate 316. The belt 324 is wound around the first pulley 322 and the second pulley 323.

[0033] When the first motor 321 starts, its output shaft drives the screw 315 fixedly connected to it to rotate. At the same time, the first pulley 322 fixed on the output shaft will rotate synchronously, and drive the second pulley 323 at the end of the other screw 315 to rotate through the wound belt 324. This achieves synchronous rotation of the screws 315 of the two sets of lifting components 31 in the same direction. The opposite threads at both ends of the screw 315 drive the slider 3151 to move towards or away from each other, thereby causing the hinge plate angle to change and completing the lifting action of the cabinet 1.

[0034] Reference Figure 1-6 The power-off mechanism 4 includes a housing box 41, a second motor 42, a switch 43, a first connecting rod 44, a second connecting rod 45, and a mounting block 46. The housing box 41 is hollow inside and open at both ends, and is fixedly installed inside the cabinet 1 above one of the moisture-proof mechanisms 2 by bolts. The second motor 42 is fixed inside the housing box 41 at one end along its length. The switch 43 controls the closure of the entire distribution cabinet circuit, and includes a cooperating stationary contact and a moving contact. The stationary contact is fixed on the top surface inside the housing box. When energized, the moving contact is engaged with the stationary contact, and the circuit is connected. When disconnected, the circuit is broken. The switch 43 is existing technology and will not be described in detail here. The switch 43 is fixed inside the housing box 41 on one side of the second motor 42. The output shaft of the second motor 42 is oriented towards the switch 43. The first connecting rod 44 and the second connecting rod 45 are both oriented along the height of the cabinet 1, and one end of the first connecting rod 44 is fixedly connected to the output shaft of the second motor 42. Mounting block 46 is fixedly connected to the moving contact of switch 43. Second link 45 is located between first link 44 and the moving contact of switch 43. One end of second link 45 is rotatably connected to first link 44 via a pin, and the other end is fixedly connected to the moving contact of switch 43 via a connecting block. Ammeter 47 is fixedly mounted on the top surface of housing 41. The current detection end of ammeter 47 is connected in series with the main circuit of the distribution cabinet, and the signal output end is electrically connected to the control end of second motor 42. When the detected total circuit current value exceeds a preset safety threshold, a drive signal is sent to second motor 42 to drive the output shaft of second motor 42 to rotate.

[0035] The ammeter 47 collects the current data of the main circuit of the distribution cabinet in real time. When the current value of the main circuit exceeds the preset safety threshold, the ammeter 47 immediately sends a drive signal to the second motor 42. After receiving the signal, the second motor 42 drives its output shaft to rotate, which in turn drives the first connecting rod 44, which is fixedly connected to the output shaft, to rotate synchronously. The first connecting rod 44 pulls the second connecting rod 45, which is rotatably connected to it, through the pin shaft. The second connecting rod 45 drives the mounting block 46 away from the switch 43, so that the moving contact and the stationary contact of the switch 43 are quickly separated, cutting off the main circuit of the distribution cabinet and realizing automatic overload power-off protection.

[0036] The operating principle of this invention is as follows: When cabinet 1 needs to be raised due to severe weather, the first motor 321 is started. The first motor 321 drives the screw 315, which is fixedly connected to its output shaft, to rotate. At the same time, through the transmission action of the first pulley 322, belt 324, and second pulley 323, the screw 315 of another set of lifting components 31 rotates synchronously. Since the thread directions at both ends of the two sets of screws 315 are opposite, the two sliders 3151 on the screws 315 move towards or away from each other along the axial direction of the screws 315. This causes the first hinge plate 313 and the second hinge plate 314, which are hinged to the bottom surface of the sliders 3151, and the third hinge plate 317 and the fourth hinge plate 318, which are hinged to the top surface of the sliders 3151, to rotate synchronously, thereby realizing the height adjustment of cabinet 1. At the same time, during the lifting process of cabinet 1, the connecting rod 24 slides along the slide groove 14 on the bottom wall of cabinet 1, and the connecting rod 24 pulls the second rotating plate 2. 3. Moving along the height direction of cabinet 1, the second rotating plate 23 drives multiple first rotating plates 22 to rotate synchronously through the rotating rod. The first rotating plate 22 drives the rotating shaft 26 fixedly connected to it to rotate, thereby driving multiple moisture-proof plates 21 to rotate around the rotating shaft 26, realizing the linkage opening and closing of the moisture-proof plates 21, thus completing the ventilation and heat dissipation and wind and rain protection of cabinet 1. When the total circuit current value of the power distribution cabinet exceeds the preset safety threshold of the ammeter 47, the ammeter 47 sends a drive signal to the second motor 42 of the power-off mechanism 4. The second motor 42 drives its output shaft to rotate, driving the first connecting rod 44 to rotate, thereby pulling the second connecting rod 45. The second connecting rod 45 drives the mounting block 46 away from the switch 43, so that the moving contact of the switch 43 is separated from the stationary contact, cutting off the total circuit of the power distribution cabinet, avoiding the risk of leakage caused by water ingress or overload in cabinet 1. After the maintenance is completed, the second motor 42 is restarted again, so that the mounting block 46 drives the moving contact to reset.

[0037] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A leakage-proof distribution cabinet, characterized in that: The cabinet includes a hollow cabinet (1) with an opening on one side, two sets of moisture-proof mechanisms (2), a lifting mechanism (3), and a power-off mechanism (4). The cabinet (1) is hinged with a cabinet door (11) at the opening. The moisture-proof mechanism (2) is located on both sides of the cabinet (1) for ventilation, heat dissipation, and protection from wind and rain. The lifting mechanism (3) is located below the cabinet (1) for adjusting the height of the cabinet (1). The power-off mechanism (4) is located inside the cabinet (1) and above the moisture-proof mechanism (2) for timely power-off when water enters the cabinet (1).

2. The leakage protection distribution cabinet according to claim 1, characterized in that: The cabinet (1) has grooves (12) at both ends along its length direction and along its height direction. Two sets of moisture-proof mechanisms (2) are symmetrically arranged at the two grooves (12). Each groove (12) has an L-shaped plate (13) fixed at one end along its length direction. The L-shaped plate (13) is arranged along the height direction of the groove (12), and there is a gap between the L-shaped plate (13) and the side wall of the cabinet (1) that is close to it.

3. The leakage protection distribution cabinet according to claim 2, characterized in that: Each moisture-proof mechanism (2) includes multiple moisture-proof plates (21), multiple first rotating plates (22), second rotating plates (23), and connecting rods (24). The multiple moisture-proof plates (21) are arranged sequentially along the height direction of the groove (12). Each moisture-proof plate (21) has an L-shaped groove (25) at its top and bottom. The top L-shaped groove (25) extends upward along the top edge of the moisture-proof plate (21) and bends in an L-shape. The bottom L-shaped groove (25) extends downward along the bottom edge of the moisture-proof plate (21) and bends in an L-shape. The multiple moisture-proof plates (21) are arranged between the L-shaped plate (13) at the groove (12) and the cabinet (1) side wall away from it. A rotating shaft (26) is fixed at the center of each moisture-proof plate (21). One end of the rotating shaft (26) passes through the L-shaped plate (13) and is rotatably connected to it. The other end is rotatably connected to the cabinet (1) side wall.

4. The leakage protection distribution cabinet according to claim 3, characterized in that: Multiple first rotating plates (22) correspond one-to-one with multiple moisture-proof plates (21). Each first rotating plate (22) is respectively set in the gap between the L-shaped plate (13) and the side wall near the cabinet (1). One end of the first rotating plate (22) along its length direction is fixedly connected to the end of the rotating shaft (26) passing through the L-shaped plate (13). Each first rotating plate (22) is set along the length direction of the cabinet (1). The second rotating plate (23) is set along the height direction of the cabinet (1) and is rotatably connected to the end of the multiple first rotating plates (22) away from the rotating shaft (26) through a rotating rod. The bottom wall of the cabinet (1) is provided with a sliding groove (14). One end of the connecting rod (24) is fixedly connected to the bottom end of the second rotating plate (23), and the other end passes through the sliding groove (14) and extends into the lifting mechanism (3) and is slidably connected to the cabinet (1).

5. The leakage protection distribution cabinet according to claim 1, characterized in that: The cabinet (1) is provided with an installation plate (5) parallel to the bottom surface of the cabinet (1) below it. The lifting mechanism (3) is installed on the installation plate (5) and a protective cover is fixed on the installation plate (5). The protective cover is used to cover the lifting mechanism (3) and is slidably connected to the side wall of the cabinet (1). The lifting mechanism (3) includes a lifting component (31) and a drive component (32). There are two sets of lifting components (31), which are spaced apart between the installation plate (5) and the bottom surface of the cabinet (1).

6. The leakage protection distribution cabinet according to claim 5, characterized in that: Each lifting assembly (31) includes a first mounting base (311), a second mounting base (312), a first hinge plate (313), a second hinge plate (314), a screw (315), a limiting plate (316), a third hinge plate (317), and a fourth hinge plate (318). The first mounting base (311) is fixed on the mounting plate (5), and the second mounting base (312) is fixed on the bottom surface of the cabinet (1) directly above the first mounting base (311). The bottom ends of the first hinge plate (313) and the second hinge plate (314) are respectively hinged to the first mounting base (311). The screw (315) is located above the first mounting base (311), and the thread directions at both ends of the screw (315) are opposite. Conversely, the screw (315) has two sliders (3151) threaded to its two ends in opposite directions. There are two limiting plates (316). The two ends of the screw (315) pass through the two limiting plates (316) and are rotatably connected to them. The two ends are rotatably connected to the side wall of the protective cover (6). The top ends of the first hinge plate (313) and the second hinge plate (314) are hinged to the bottom surfaces of the two sliders (3151). The bottom ends of the third hinge plate (317) and the fourth hinge plate (318) are hinged to the top surfaces of the two sliders (3151). The top ends are all hinged to the second mounting base (312). The driving assembly (32) is used to drive the two screws (315) to rotate synchronously.

7. The leakage protection distribution cabinet according to claim 6, characterized in that: The drive assembly (32) includes a first motor (321), a first pulley (322), a second pulley (323), and a belt (324). The first motor (321) is fixed on the side of one of the limiting plates (316) away from the screw (315), and the output shaft of the first motor (321) is fixedly connected to one end of the screw (315) that is close to it. The first pulley (322) is fixed on the output shaft of the first motor (321), and the second pulley (323) is fixed on one end of the other screw (315) that passes through the limiting plate (316). The belt (324) is wound around the first pulley (322) and the second pulley (323).

8. The leakage protection distribution cabinet according to claim 1, characterized in that: The power-off mechanism (4) includes a housing (41), a second motor (42), a switch (43), a first connecting rod (44), a second connecting rod (45), and a mounting block (46). The housing (41) is hollow inside and open at both ends. It is fixedly installed inside the cabinet (1) above one of the moisture-proof mechanisms (2) by bolts. The second motor (42) is fixed inside the housing (41) at one end along its length. The switch (43) is fixed inside the housing (41) on one side of the second motor (42). The switch (43) includes a stationary contact and a moving contact that cooperate with each other. The stationary contact is fixed on the top surface inside the housing (41). The moving contact is linked with the mounting block (46) to move the moving contact closer to or away from the stationary contact. When the two are in contact, the circuit is connected. When they are separated, the circuit is disconnected.

9. The leakage protection distribution cabinet according to claim 8, characterized in that: The output shaft of the second motor (42) is positioned toward the knife switch (43). The first connecting rod (44) and the second connecting rod (45) are both positioned along the height direction of the cabinet (1). One end of the first connecting rod (44) is fixedly connected to the output shaft of the second motor (42). The mounting block (46) is fixedly connected to the moving contact of the knife switch (43). The second connecting rod is positioned between the first connecting rod (44) and the moving contact of the knife switch (43). One end of the second connecting rod (45) is rotatably connected to the first connecting rod (44) via a pin, and the other end is fixedly connected to the moving contact of the knife switch (43) via a connecting block.

10. The leakage protection distribution cabinet according to claim 8, characterized in that: An ammeter (47) is fixed on the top surface of the housing box (41). The current detection end of the ammeter (47) is connected in series with the main circuit of the power distribution cabinet, and the signal output end is electrically connected to the control end of the second motor (42). When the current value of the main circuit exceeds the preset safety threshold, a drive signal is sent to the second motor (42) to drive the output shaft of the second motor (42) to rotate, thereby causing the moving contact and stationary contact of the switch (43) to separate.

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