Power distribution cabinet with self-protection function

Abstract

The utility model discloses a power distribution cabinet with self -protection function, include: cabinet body, set up in the cabinet body for the ground wire ground wire groove board, for the laying of the fire line fire line groove board and for the laying of the zero line zero line groove board, the fire line groove board is located between ground wire groove board and zero line groove board, install on the fire line groove board electric element, and the electric element is connected with zero line electricity through the movable plug, be used for keeping movable plug and electric element electric connection state's locking mechanism, be used for relieving movable plug and electric element electric connection state's protection mechanism, the utility model discloses can cut off the electric current circuit in time when the electric element or circuit in power distribution cabinet appears the breakdown, to protect electric element prevents the fire.

Description

Technical Field

[0001] This utility model belongs to the field of power distribution cabinet technology, specifically relating to a power distribution cabinet with self-protection function. Background Technology

[0002] Distribution cabinets are the final-level equipment in a power distribution system and a general term for motor control centers. There are many types of distribution cabinets, covering a wide range of fields, including power plants, chemical plants, metallurgy, textiles, high-rise buildings, and petroleum. Their diverse functions and wide application make them an indispensable piece of equipment in modern society. Distribution cabinets are the upper-level power distribution equipment in distribution boxes, often used in centralized power supply systems. They serve as power centers and main power distribution devices, primarily used for controlling, monitoring, measuring, and protecting power lines and major electrical equipment. However, traditional distribution cabinets lack internal safety protection mechanisms, making them unable to handle potential leakage current. In the event of leakage, danger cannot be prevented in time, and accidental contact by operators could lead to injury, increasing safety hazards during equipment use, reducing stability and safety, and significantly diminishing the equipment's effectiveness.

[0003] When electrical components or circuits in a distribution cabinet malfunction, it can lead to damage to the components or even a fire. Therefore, it is necessary to disconnect the live wire or current circuit in time to protect the components and prevent fire. After disconnecting the live wire or current circuit, the live wire is still energized, which may cause leakage. This can lead to the spread of the fault in the equipment and circuits, and even cause the cabinet to become energized, thus affecting the maintenance personnel's ability to repair the faulty electrical components or circuits. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a power distribution cabinet with self-protection function, which can promptly cut off the current circuit when electrical components or lines in the power distribution cabinet malfunction, thereby protecting the electrical components from fire.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a distribution cabinet with self-protection function, comprising: a cabinet body; a ground wire trough plate for laying ground wires, a live wire trough plate for laying live wires, and a neutral wire trough plate for laying neutral wires, disposed within the cabinet body, wherein the live wire trough plate is located between the ground wire trough plate and the neutral wire trough plate; an electrical component mounted on the live wire trough plate, wherein the electrical component is electrically connected to the neutral wire via a movable plug; a locking mechanism for maintaining the electrical connection between the movable plug and the electrical component; and a protection mechanism for releasing the electrical connection between the movable plug and the electrical component.

[0006] The above technical solution, by setting up a live wire trough, a ground wire trough, and a neutral wire trough, with the live wire trough located between the ground wire trough and the neutral wire trough, allows electrical components installed on the live wire trough to be connected to the live wire and the neutral wire respectively. With locking mechanisms and protection mechanisms, the current circuit can be cut off in time when electrical components or lines in the distribution cabinet malfunction, so as to protect electrical components from fire. At the same time, it is convenient to find the fault point and facilitates rapid repair.

[0007] Furthermore, the movable plug is provided with a neutral wire plug that is electrically connected to the neutral wire. The neutral wire plug passes through the neutral wire guide groove provided on the electrical component and is electrically connected to the electrical component.

[0008] The above technical solution improves circuit wiring efficiency by electrically connecting the neutral wire plug on the movable plug to the electrical components, and at the same time, it can quickly disconnect the circuit in case of a fault.

[0009] Furthermore, the locking mechanism includes: a steel clip disposed on the movable insert; a locking rod disposed on the electrical component; the steel clip passes through a slot disposed on the electrical component and engages with the locking rod.

[0010] The above technical solution, through the design of the specific structure of the locking mechanism, provides an effective locking method that can ensure the reliability of the electrical connection and facilitate the rapid disconnection of the circuit in case of failure.

[0011] Furthermore, the protection mechanism includes an unlocking unit, which includes: an arc-shaped armature piece disposed within the electrical component for driving the lever to generate displacement; an L-shaped guide rod disposed between the electrical component and the neutral wire trough plate, with the movable plug slidably connected to the L-shaped guide rod; and an L-shaped spring sleeved on the L-shaped guide rod, with one end of the L-shaped spring abutting against the electrical component and the other end abutting against the movable plug.

[0012] The above technical solution, through the design of the specific structure of the unlocking unit, utilizes the heating characteristics of electrical components during a fault to achieve rapid unlocking, and can quickly cut off the circuit during a fault to protect electrical components from fire.

[0013] Furthermore, the protection mechanism also includes a grounding unit, which comprises: a hollow connecting rod disposed between the ground wire trough plate and the live wire trough plate, and between the live wire trough plate and the neutral wire trough plate; a sliding groove formed on the connecting rod; a push block disposed inside the connecting rod and slidably connected to the connecting rod; a stop plate with one end connected to the push block and the other end passing through the live wire trough plate and abutting against the ground guide plate; the ground guide plate being slidably connected to the connecting rod; a return spring with one end connected to the ground guide plate and the other end connected to the ground wire trough plate; a drive groove provided on the push block, the drive groove being used to pass through the sliding groove and engage with a drive rod disposed on a movable insert; a ground guide rod provided on the ground guide plate, the ground guide rod being used to pass through the sliding groove and slidably connect with a ground wire guide post disposed on the ground wire trough plate.

[0014] The above technical solution, through the specific construction of the grounding unit in the protection mechanism, can connect electrical components to the ground wire after a fault occurs, preventing the electrical casing from becoming energized, creating conditions for subsequent maintenance, preventing secondary accidents, and protecting the safety of personnel.

[0015] Furthermore, the abutment plate is provided with teeth; the electrical component is equipped with a live wire guide post that passes through the live wire slot plate, an insulating conical roller is rotatably mounted on the outer wall of the live wire guide post, a toothed roller is threadedly engaged on the outer wall of the insulating conical roller, a sleeve is engaged at the end of the live wire guide post, a plurality of compression springs are arrayed on the inner wall of the sleeve, and a pressure plate that fits against the outer wall of the live wire guide post is mounted at the end of each of the plurality of compression springs; the teeth mesh with the toothed roller.

[0016] The above technical solution, by setting the live wire guide post to mesh with the teeth on the toothed roller and the backing plate, can, on the one hand, directly cut off the connection between the electrical component and the live wire in case of a fault, and on the other hand, connect the electrical component to the ground wire after cutting off the live wire, preventing the electrical casing from becoming live, creating conditions for subsequent maintenance, preventing secondary accidents, and protecting the safety of the staff.

[0017] Furthermore, a live wire trough and a neutral wire trough are symmetrically installed on both sides of the ground wire trough, and the ground wire trough, live wire trough and neutral wire trough are all arranged longitudinally; a plurality of electrical components are arranged in an array on the outer wall of the live wire trough.

[0018] The above technical solution arranges electrical components in an array on the outer wall of the live wire tray, facilitating wiring. Simultaneously, the longitudinal arrangement of the ground wire tray, live wire tray, and neutral wire tray separates the three wire types in the distribution cabinet, helping to clearly distinguish and identify different wires, reducing the risk of incorrect wiring and thus improving electrical safety. Furthermore, the consistent spacing between wires makes it easier for maintenance personnel to identify and access each connection point for inspection and maintenance. The longitudinal arrangement of wires also reduces electromagnetic interference between different lines because this layout helps reduce the parallelism and density between different lines, thereby reducing electromagnetic coupling.

[0019] Furthermore, sealing plates are provided on the ground wire trough, the live wire trough, and the neutral wire trough.

[0020] The above technical solution can completely separate the ground wire, live wire and neutral wire by setting a sealing plate, preventing the cables from getting tangled, keeping the inside of the cabinet clean, and classifying the wiring for easy maintenance in the future, while also protecting the cables from external environmental interference.

[0021] Furthermore, the cabinet has door panels on both the front and back, and multiple ventilation holes are arrayed on both sides of the cabinet.

[0022] The above technical solution, by providing doors on both the front and back of the cabinet, allows for the opening of these doors to observe which movable plug has shifted in the event of a fault in an electrical component or circuit. This enables targeted repair of the electrical component and circuit, saving maintenance personnel time. Furthermore, the inclusion of ventilation openings helps dissipate heat inside the cabinet, reducing malfunctions or accidental operation caused by high temperatures.

[0023] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model, by setting a ground wire trough plate for laying the ground wire, a live wire trough plate for laying the live wire, and a neutral wire trough plate for laying the neutral wire inside the cabinet, with the live wire trough plate located between the ground wire trough plate and the neutral wire trough plate; electrical components installed on the live wire trough plate are electrically connected to the neutral wire through a movable plug; a locking mechanism for maintaining the electrical connection between the movable plug and the electrical component; and a protection mechanism for releasing the electrical connection between the movable plug and the electrical component, can promptly cut off the current circuit when a fault occurs in the electrical components or lines in the distribution cabinet, thereby protecting the electrical components from fire. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the external appearance of a power distribution cabinet with self-protection function provided in an embodiment of this utility model;

[0025] Figure 2 This is a partial internal structure diagram of a power distribution cabinet with self-protection function provided in an embodiment of this utility model;

[0026] Figure 3 yes Figure 2 Local magnification Figure 1 ;

[0027] Figure 4 yes Figure 2 Local magnification Figure 2 ;

[0028] Figure 5 yes Figure 4 Rear view sectional view;

[0029] Figure 6 This is a cross-sectional view of the electrical components in an embodiment of this utility model. Figure 1 ;

[0030] Figure 7 yes Figure 6 Enlarged view of point A in the middle;

[0031] Figure 8 This is a schematic diagram of the push block and the stop plate in an embodiment of this utility model;

[0032] Figure 9 This is a schematic diagram of the structure of the movable insert in an embodiment of this utility model;

[0033] Figure 10 This is a cross-sectional view of the electrical components in an embodiment of this utility model. Figure 2 ;

[0034] Figure 11 This is a schematic diagram of the installation of the sealing plate in an embodiment of this utility model;

[0035] In the diagram: 1. Cabinet body; 2. Door panel; 3. Ventilation vent; 4. Grounding duct plate; 5. Live wire duct plate; 6. Neutral wire duct plate; 7. Electrical components; 8. Movable plug; 9. L-shaped guide rod; 10. L-shaped spring; 11. Neutral wire plug rod; 12. Steel clip; 13. Screw; 14. Connecting rod; 15. Grounding guide post; 16. Grounding guide rod; 17. Push block; 18. Grounding guide plate; 19. Support plate; 20. Return spring; 21. Neutral wire guide groove; 22. Button; 23. Slot; 24. Locking rod; 25. Arc-shaped armature plate; 26. Slide groove; 27. Drive rod; 28. Drive groove; 29. ​​Nut; 30. Conductive screw; 31. Sealing plate; 32. Sleeve; 33. Toothed roller; 34. Insulating conical roller; 35. Live wire guide post; 36. Pressure plate; 37. Compression spring; 38. Tooth. Detailed Implementation

[0036] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0037] Example 1

[0038] like Figures 1-11 As shown, a power distribution cabinet with self-protection function includes: a cabinet body 1; a ground wire trough plate 4 for laying ground wire, a live wire trough plate 5 for laying live wire, and a neutral wire trough plate 6 for laying neutral wire, all disposed inside the cabinet body 1, with the live wire trough plate 5 located between the ground wire trough plate 4 and the neutral wire trough plate 6; an electrical component 7 installed on the live wire trough plate 5, the electrical component 7 being electrically connected to the neutral wire via a movable plug 8; a locking mechanism for maintaining the electrical connection between the movable plug 8 and the electrical component 7; and a protection mechanism for releasing the electrical connection between the movable plug 8 and the electrical component 7.

[0039] When electrical components or circuits in a distribution cabinet malfunction, it can lead to damage to the components or even a fire. Therefore, it is necessary to promptly disconnect the live wire or current circuit to protect the components and prevent fire. However, after disconnecting the live wire or current circuit, the continuous energization of the live wire can cause leakage, leading to the spread of the fault in the equipment and circuits, and even electrifying the cabinet itself. This hinders maintenance personnel from repairing the faulty components or circuits. This invention separates the three types of wires in the distribution cabinet by setting up a ground wire trough plate 4, a live wire trough plate 5, and a neutral wire trough plate 6, facilitating maintenance. Simultaneously, the movable plug 8 can form an electrical connection with the electrical component 7 through a locking mechanism. When a fault occurs in the component or circuit, the protection mechanism is triggered, releasing the connection between the component and the movable plug, thus cutting off the circuit and protecting the components and circuits, preventing fire.

[0040] Example 2

[0041] Based on the power distribution cabinet with self-protection function described in Embodiment 1, in this embodiment, the live wire trough plate 5 and the neutral wire trough plate 6 are symmetrically installed on both sides of the ground wire trough plate 4 in sequence, and the ground wire trough plate 4, the live wire trough plate 5 and the neutral wire trough plate 6 are all installed longitudinally. Multiple electrical components 7 are arrayed on the outer wall of the live wire trough plate 5, and locking mechanisms and protection mechanisms are provided between the multiple electrical components 7 and the corresponding neutral wire trough plate 6.

[0042] The movable plug 8 is provided with a neutral wire plug 11 that is electrically connected to the neutral wire. The neutral wire plug 11 passes through the neutral wire guide groove 21 provided on the electrical component 7 and is electrically connected to the electrical component 7.

[0043] The locking mechanism includes: two sets of steel clips 12 symmetrically arranged on the movable plug 8; two locking rods 24 arranged on the electrical component 7; the steel clips 12 pass through the locking grooves 23 arranged on the electrical component 7 and engage with the corresponding locking rods 24.

[0044] The protection mechanism includes an unlocking unit, which comprises: an arc-shaped armature piece 25 disposed within the electrical component 7 for driving the locking lever 24 to generate displacement; an L-shaped guide rod 9 disposed between the electrical component 7 and the neutral wire trough plate 6, with the movable plug 8 slidably connected to the L-shaped guide rod 9; and an L-shaped spring 10 sleeved on the L-shaped guide rod 9, one end of which abuts against the electrical component 7, and the other end abuts against the movable plug 8. When the neutral wire plug 11 aligns with the neutral wire trough 21, the locking mechanism locks the movable plug 8 to the electrical component 7. The unlocking unit can release the electrical component 7 from locking the movable plug 8 in the event of a short circuit or other conditions. Buttons 22 are fixedly installed at the ends of the two locking levers 24 located outside the electrical component 7, allowing manual release of the locking between the steel clamp 12 and the locking levers 24 as needed.

[0045] The protection mechanism also includes a grounding unit, which includes: a hollow connecting rod 14, which is disposed between the ground wire trough plate 4 and the live wire trough plate 5, and between the live wire trough plate 5 and the neutral wire trough plate 6, and is arranged in an array corresponding to the electrical components 7; a sliding groove 26 opened on the connecting rod 14; a push block 17 disposed inside the connecting rod 14 and slidably connected to the connecting rod 14; a stop plate 19 with one end connected to the push block 17 and the other end passing through the live wire trough plate 5 and abutting against the ground guide plate 18; the ground guide plate 18 is slidably connected to the connecting rod 14; a return spring 20 with one end connected to the ground guide plate 18 and the other end connected to the ground wire trough plate 4; a drive groove 28 is provided on the push block 17, which is used to pass through the sliding groove 26 and engage with the drive rod 27 disposed on the movable plug 8; a ground guide rod 16 is provided on the ground guide plate 18, which is used to pass through the sliding groove 26 and slidably connect with the ground wire guide post 15 disposed on the ground wire trough plate 4.

[0046] The outer wall of the electrical component 7 is fixedly mounted with a live wire guide post 35 that passes through the live wire slot plate 5. An insulating conical roller 34 is rotatably mounted on the outer wall of the live wire guide post 35. A toothed roller 33 is threadedly engaged on the outer wall of the insulating conical roller 34. A retaining sleeve 32 is engaged at the end of the live wire guide post 35. Multiple compression springs 37 are arrayed on the inner wall of the retaining sleeve 32. Each end of the multiple compression springs 37 is equipped with a pressure plate 36 that can fit against the outer wall of the live wire guide post 35. Multiple teeth 38 are arrayed on the outer wall of the abutment plate 19 and mesh with the toothed roller 33.

[0047] This invention allows two sets of steel clips 12 to move into the internal slot 23 of the electrical component 7 by manually sliding the movable plug 8, forming a snap-fit ​​engagement with the internal locking rod 24 of the slot 23. This achieves the docking of the neutral wire plug rod 11 with the neutral wire guide groove 21, establishing an electrical connection between the movable plug 8 and the electrical component 7. During the displacement of the movable plug 8, the drive rod 27, which is fixedly connected to the movable plug, docks with the drive groove 28 on the push block 17, thereby enabling the push block 17 to move. Simultaneously, multiple abutments 19 mounted on the push block 17 can... The drive plate 18 is displaced, thus moving it away from the electrical component 7. The live wire is spirally wound onto the live wire guide post 35 and then secured to the end of the live wire guide post 35 by a retainer 32. Multiple pressure plates 36 inside the retainer 32, acting on multiple springs 37, ensure complete contact and fixation between the live wire and the live wire guide post 35, preventing the live wire from falling off during normal use. When the electrical component 7 or the circuit malfunctions, the electrical component 7 will heat up. When the temperature reaches the set temperature, the arc-shaped armature plate... Deformation occurs at 25, causing the two locking rods 24 to shift, thereby releasing the restriction on the two sets of steel clips 12. The movable insert 8, under the action of the L-shaped spring 10, returns to its original position along the L-shaped guide rod 9, disengaging the neutral wire insert 11 from the neutral wire guide groove 21, thus cutting off the current circuit. Simultaneously, the ground guide plate 18 shifts under the action of the return spring 20, and the ground guide plate 18 adheres to the outer wall of the electrical component 7. At the same time, the displacement of the ground wire guide post 15 causes the abutment plate 19 to shift to its original position. Through the meshing of the teeth 38 and the toothed roller 33, it is possible to... The drive roller 33 rotates, thereby displacing the insulating cone roller 34 installed inside the toothed roller 33 by its internal thread engagement. This causes the live wire wound on the live wire guide post 35 to move onto the insulating cone roller 34, thus insulating the live wire. The ground guide rod 16 installed on the outer wall of the ground guide plate 18 slides on the outer wall of the ground wire guide post 15. When the electrical component 7 leaks current, the current can be transferred to the ground wire guide post 15 through the ground guide plate 18 and the ground guide rod 16, preventing the leakage from causing the fault to spread or even making the cabinet live and unable to be repaired in time.

[0048] Example 3

[0049] Based on the power distribution cabinet with self-protection function described in Embodiment 2, in this embodiment, the outer wall of the ground wire guide post 15 is equipped with a conductive screw 30 and is located in the ground wire trough plate 4. Two nuts 29 are threadedly fastened to the outer wall of the conductive screw 30. The outer wall of the movable plug 8 is provided with a battery cell slot, and the battery cell slot is connected to the inside of the neutral wire trough plate 6. The outer wall of the movable plug 8 is rotatably equipped with a screw 13, and the screw 13 passes through the battery cell slot.

[0050] The back of the ground wire trough plate 4, the live wire trough plate 5 and the neutral wire trough plate 6 can be snapped with a sealing plate 31. The front and back of the cabinet 1 are equipped with door panels 2, and multiple heat dissipation vents 3 are arrayed on both sides of the cabinet 1.

[0051] By setting the conductive screw 30 and nut 29, during the assembly of the distribution cabinet, the operator can directly wind the battery cores of the ground wire and live wire onto the conductive screw 30 and fix them with the two nuts 29, thus completing the connection between the live wire and the electrical component 7 and the ground wire and the ground wire guide post 15. The neutral wire can be inserted into the battery core slot opened on the movable plug 8 and fixed with the screw 13. During the displacement of the movable plug 8, the neutral wire will not affect the displacement of the movable plug 8. After the required ground wire, live wire and neutral wire are connected to the ground wire guide post 15, electrical component 7 and movable plug 8 respectively, the lines can be placed in the ground wire trough plate 4, live wire trough plate 5 and neutral wire trough plate 6 respectively. They are classified and isolated by the sealing plate 31, which can keep the inside of the cabinet 1 neat and the lines classified, which is convenient for later maintenance. If the electrical component or line fails, the front and back doors 2 of the cabinet 1 can be opened to observe which movable plug 8 has been displaced, so that the corresponding electrical component and line can be repaired, thus saving maintenance time for maintenance personnel.

[0052] This invention features a movable plug that can be manually moved after wiring, allowing it to connect to electrical components. During this movement, the grounding plate is moved away from the components to prevent short circuits. When a fault occurs in the component or wiring, it will heat up or overheat, causing the arc-shaped armature inside to deform and displace the locking lever. This releases the movable plug's limit and resets it under the action of an L-shaped spring. Simultaneously, the grounding plate, under the action of the reset spring, comes into contact with the component, resetting the backing plate. Through the meshing of teeth and a toothed roller, the internally threaded insulating cone roller is displaced as the toothed roller rotates, moving the wound live wire to the outer wall of the insulating cone roller, thus insulating the live wire and preventing leakage from the components that could lead to the spread of faults or even electrify the cabinet, making timely repair impossible.

[0053] By installing ground wire, live wire, and neutral wire trays vertically inside the cabinet, it is helpful to clearly distinguish and identify different wires, reduce the risk of incorrect wiring, and thus improve electrical safety. The consistent spacing of the wires also makes it easier for maintenance personnel to identify and access each connection point for inspection and maintenance. The vertical arrangement of wires can reduce electromagnetic interference between different lines because this layout helps to reduce the parallelism and compactness between different lines, thereby reducing electromagnetic coupling.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A power distribution cabinet with self-protection function, characterized in that, include: Cabinet (1); Inside the cabinet (1), there are a ground wire trough plate (4) for laying the ground wire, a live wire trough plate (5) for laying the live wire, and a neutral wire trough plate (6) for laying the neutral wire. The live wire trough plate (5) is located between the ground wire trough plate (4) and the neutral wire trough plate (6). An electrical component (7) is installed on the live wire tray (5), and the electrical component (7) is electrically connected to the neutral wire via a movable plug (8); A locking mechanism for maintaining the electrical connection between the movable plug (8) and the electrical component (7); A protective mechanism for disconnecting the active plug (8) from the electrical component (7).

2. The distribution cabinet with self-protection function according to claim 1, characterized in that, The movable plug (8) is provided with a neutral wire plug (11) that is electrically connected to the neutral wire. The neutral wire plug (11) passes through the neutral wire guide groove (21) provided on the electrical component (7) and is electrically connected to the electrical component (7).

3. The distribution cabinet with self-protection function according to claim 1, characterized in that, The locking mechanism includes: A steel clip (12) is set on the movable plug (8); A lever (24) is installed on the electrical component (7); The steel clip (12) passes through the slot (23) provided on the electrical component (7) and engages with the lever (24).

4. The distribution cabinet with self-protection function according to claim 3, characterized in that, The protection mechanism includes an unlocking unit, which includes: An arc-shaped armature piece (25) is installed inside the electrical component (7) to drive the lever (24) to generate displacement. An L-shaped guide rod (9) is set between the electrical component (7) and the neutral wire trough plate (6), and the movable plug (8) is slidably connected to the L-shaped guide rod (9); An L-shaped spring (10) is fitted on an L-shaped guide rod (9). One end of the L-shaped spring (10) abuts against the electrical component (7), and the other end abuts against the movable plug (8).

5. The distribution cabinet with self-protection function according to claim 4, characterized in that, The protection mechanism further includes a grounding unit, which comprises: A hollow connecting rod (14) is disposed between the ground wire trough plate (4) and the live wire trough plate (5), and between the live wire trough plate (5) and the neutral wire trough plate (6). A groove (26) is formed on the connecting rod (14); A push block (17) is installed inside the connecting rod (14) and is slidably connected to the connecting rod (14). A stop plate (19) with one end connected to the push block (17) and the other end passing through the fire wire groove plate (5) and abutting against the ground guide plate (18); the ground guide plate (18) is slidably connected to the connecting rod (14); A reset spring (20) with one end connected to the ground guide plate (18) and the other end connected to the ground wire trough plate (4). The push block (17) is provided with a drive groove (28), which is used to pass through the slide groove (26) and engage with the drive rod (27) provided on the movable plug (8); The ground guide plate (18) is provided with a ground guide rod (16), which is used to slide through the groove (26) and connect with the ground guide post (15) provided on the ground wire groove plate (4).

6. The distribution cabinet with self-protection function according to claim 5, characterized in that, The abutment (19) is provided with teeth (38); The electrical component (7) is equipped with a live wire guide post (35) that passes through the live wire slot plate (5). An insulating conical roller (34) is rotatably mounted on the outer wall of the live wire guide post (35). A toothed roller (33) is threaded onto the outer wall of the insulating conical roller (34). A sleeve (32) is snapped onto the end of the live wire guide post (35). Multiple compression springs (37) are arrayed on the inner wall of the sleeve (32). Each end of the multiple compression springs (37) is equipped with a pressure plate (36) that fits against the outer wall of the live wire guide post (35). The teeth (38) mesh with the toothed roller (33).

7. The distribution cabinet with self-protection function according to claim 6, characterized in that, The ground wire trough (4) is symmetrically installed with a live wire trough (5) and a neutral wire trough (6) on both sides, and the ground wire trough (4), the live wire trough (5) and the neutral wire trough (6) are all arranged longitudinally; a plurality of electrical components (7) are arranged in an array on the outer wall of the live wire trough (5).

8. The distribution cabinet with self-protection function according to claim 1, characterized in that, Sealing plates (31) are provided on the ground wire trough (4), the live wire trough (5) and the neutral wire trough (6).

9. The distribution cabinet with self-protection function according to claim 1, characterized in that, The cabinet (1) has door panels (2) on both the front and back, and multiple heat dissipation vents (3) are arrayed on both sides of the cabinet (1).

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