Plug-in protective multi-protection electric meter box

Abstract

This invention discloses a plug-in protective multi-layered meter box, relating to the field of meter boxes. This plug-in protective multi-layered meter box utilizes the cooperation of the inclined surface at the bottom of the pressure plate and the inclined surface at the top of the plug-in block. After insertion, the position of the plug-in block is restricted, preventing it from shifting or tilting. Simultaneously, the inclined surface at the top of the plug-in block can push the locking block to both sides during insertion, improving the smoothness of insertion and preventing jamming. Furthermore, the close contact between the pressure plate and the plug-in block increases the contact area, ensuring the continuity of the electrical circuit connection during vibration and preventing circuit breaks. It also prevents sparks from appearing when the plug-in block shakes, thus avoiding equipment damage.

Description

Technical Field

[0001] This invention specifically relates to a pluggable protective multi-layered protection meter box, and pertains to the field of meter boxes. Background Technology

[0002] A meter box is a closed box-type power distribution device used to house and protect electricity meters, terminals, switches, leakage protection devices and auxiliary electrical accessories, and to realize electricity metering, wiring and electricity safety protection. As a centralized storage device for metering equipment, the meter box ensures the stable operation of smart meters, provides the hardware installation foundation for remote meter reading, real-time collection of electricity data and load monitoring of smart grids, and is the core terminal unit for power grid data collection. A waterproof outdoor meter box, disclosed in CN115395374B, includes a box body with an internal mounting plate. A base is fixed to the bottom of the box body, and mounting platforms are fixed to both sides of the base. Rain sensors and water level sensors are fixed to the upper and lower sides of the mounting platforms, respectively. A rainproof cloth is fixed to the top of the box body. This invention can automatically drain rainwater accumulated on the top of the meter box during rain. Furthermore, when there is excessive water on the ground, the meter box can be raised to a higher position to prevent ground water from entering. This meter box also facilitates regular maintenance by staff and protects the connection between the meter box and the bus, preventing damage from the outdoor environment. This effectively improves the waterproof performance of the meter box and protects its internal components. In existing equipment, the plug-in connection structure inside the existing meter box is prone to shaking when vibrating. During the shaking, the circuit connection is easily broken, and electrical sparking is also likely to occur, which can cause a fire inside the meter box. Summary of the Invention

[0003] To address the aforementioned problems, a technical solution is proposed: a pluggable, multi-protection meter box, comprising: An outer cover mechanism is provided, with a door installed on its outer side. An inner cover mechanism is installed inside the outer cover mechanism, and an electricity meter and a switch are installed inside the inner cover mechanism. The electricity meter and the switch are electrically connected, and each wiring position of the electricity meter is equipped with a plug-in mechanism. The insertion / removal mechanism includes a connecting buckle, with bolts installed on its inner wall. The connecting buckle is fixedly connected to the wiring position of the meter via the bolts. A pressure plate is fixedly installed on the top of the inner wall of the connecting buckle. An insertion / removal block is slidably installed on the inner wall of the connecting buckle. Both sides of the insertion / removal block have notches. Both sides of the connecting buckle have sliding grooves, and locking blocks are slidably installed in the sliding grooves of the connecting buckle. One end of the locking block engages with the notch of the insertion / removal block, and the other end of the locking block is fixedly installed with a guide rod. External locking blocks are fixedly installed on both sides of the connecting buckle. The outer cover block has its inner wall slidably adapted to the outer side of the locking block. A guide rod cooperates with the outer cover block to guide the sliding direction of the locking block when it slides. At the same time, when the locking and fixing plug-in block is engaged, the guide rod restricts the position of the locking block to prevent the locking block from shaking. If the locking block shakes when subjected to vibration, it will cause the plug-in block to slide synchronously inside the connecting buckle, resulting in unstable circuit connection. The end of the guide rod away from the locking block passes through the outer cover block and extends to its outer side. An inner gasket ring made of elastic material is fixedly installed between the locking block and the outer cover block.

[0004] The bottom of the pressure plate has a centrally recessed slope. This slope, combined with the top slope of the insertion block, restricts the position of the insertion block after insertion, preventing it from shifting or tilting. Simultaneously, the slope at the top of the insertion block pushes the locking block to both sides during insertion, improving smoothness and preventing jamming. The close contact between the pressure plate and the insertion block increases the contact area, ensuring the continuity of the electrical circuit during vibration and preventing circuit breaks. It also prevents flames from appearing when the insertion block shakes, thus avoiding equipment damage. The top of the insertion block has a centrally protruding slope, and its top fits against the bottom of the pressure plate. A cable connection groove is provided at the bottom of the insertion block, and an insulating sleeve is fixedly installed on the outer side of the insertion block.

[0005] Preferably, the outer cover mechanism includes an outer cover compartment. An outer frame plate is fixedly installed on the inner wall of the outer cover compartment near the door. A snap fastener is provided on the outer side of the outer frame plate, and the outer frame plate is rotatably connected to the door through the snap fastener. An inner frame plate is slidably installed on the inner wall of the outer cover compartment. A rubber plate is fixedly installed on the side of the inner frame plate near the outer frame plate. Through the cooperation of the inner frame plate and the outer frame plate, when the inner cover mechanism slides to buffer the vibration force, the inner frame plate moves synchronously with the inner cover mechanism, which restricts the movement direction of the inner cover mechanism. At the same time, the inner frame plate and the outer frame plate form a double-layer shell structure between the outer cover compartment and the inner cover compartment, which improves the impact resistance.

[0006] Preferably, the top of the outer cover compartment has a rectangular groove, and a notched frame is fixedly installed at the rectangular groove of the outer cover compartment. Notches are opened on both sides of the top of the notched frame, and a top cover plate is fixedly installed on the top of the notched frame. The two ends of the top cover plate are inclined downward. Inner support plates are fixedly installed on both sides of the inner wall of the outer cover compartment. The inclined support of the inner support plates between the inner and outer cover compartments increases the impact resistance of the double-layer shell structure. The arc-shaped protrusion of the inner support plate reduces the contact area with the inner cover compartment. When the inner cover compartment slides and buffers the vibration force, the friction between the inner and outer cover compartments is reduced, and the frictional resistance is reduced. The end of the inner support plate away from the outer cover compartment is inclined towards the door, and the end of the outer cover compartment away from the outer cover compartment is provided with an arc-shaped protrusion.

[0007] Preferably, the inner cover mechanism includes a connecting frame, which is fixedly installed at the center of the inner wall of the outer cover compartment. A sliding frame is slidably installed on the inner wall of the connecting frame. A fixing plate is fixedly installed at one end of the sliding frame. An elastic pad is fixedly installed between the fixing plate and the outer cover compartment. The upper and lower sides of the elastic pad are in contact with the inner wall of the connecting frame. The inner cover compartment is fixedly installed at the other end of the connecting frame. The outer side of the inner cover compartment near the outer frame plate is fixedly connected to the inner wall of the inner frame plate. The two sides of the inner cover compartment are in contact with the arc-shaped protrusions of the inner support plate.

[0008] Preferably, the top of the inner cover compartment is provided with a rectangular through groove, and a rubber gasket is fixedly installed at the rectangular through groove of the inner cover compartment. A zigzag square tube is fixedly installed on the inner wall of the rubber gasket. The zigzag square tube is located between the outer cover compartment and the inner cover compartment. The center position of the zigzag square tube bends downwards, and the top of the outer side of the zigzag square tube fits against the rectangular groove of the outer cover compartment. Due to the downward bend at the center position of the zigzag square tube, during the exhaust and heat dissipation process, the water entering the zigzag square tube stops and collects at the bend position after reaching the downward bend position, preventing water from entering the interior of the inner cover compartment along the exhaust pipe and causing damage to the electrical circuit inside the inner cover compartment. The top of the zigzag square tube is higher than the top of the outer cover compartment, and there is a gap between the zigzag square tube and the notched frame.

[0009] This invention provides a pluggable protective multi-layered meter box, which has the following advantages: (i) By cooperating with the outer cover block, the guide rod guides the sliding direction of the card block when it slides. At the same time, when the plug-in block is locked, the guide rod restricts the position of the card block to prevent the card block from shaking. If the card block shakes when it is vibrated, the plug-in block will slide synchronously inside the connecting buckle, resulting in unstable circuit connection. (ii) By using the inclined surface at the bottom of the pressure plate and the inclined surface at the top of the plug-in block to restrict the position of the plug-in block after insertion, the plug-in block is prevented from shifting or tilting. At the same time, the inclined surface at the top of the plug-in block can be used to push the locking block to both sides during insertion, improving the smoothness of insertion and avoiding jamming during insertion. In addition, the contact between the pressure plate and the plug-in block increases the contact area, ensuring the smoothness of the power circuit connection during vibration and avoiding circuit breaks. It also prevents flames from appearing when the plug-in block shakes, which could damage the equipment. (iii) By cooperating with the inner frame plate and the outer frame plate, when the inner cover mechanism slides and buffers the vibration force, the inner frame plate moves synchronously with the inner cover mechanism, which restricts the movement direction of the inner cover mechanism. At the same time, the inner frame plate and the outer frame plate form a double shell structure with the outer cover compartment and the inner cover compartment, which improves the impact resistance. (iv) By using the inclined support of the inner support plate between the inner and outer shells, the impact resistance of the double shell structure is increased. The arc-shaped protrusion of the inner support plate reduces the contact area with the inner shell, thereby reducing the friction between the inner and outer shells and reducing frictional resistance when the inner shell slides to buffer the vibration force. (v) By bending downwards at the center of the curved square tube, the water entering the curved square tube will stop and collect at the bending position after reaching the bending position during the exhaust heat dissipation process, preventing water from entering the interior of the inner chamber along the exhaust pipe and causing damage to the power lines inside the inner chamber. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall internal structure of the present invention; Figure 3 This is a schematic diagram of the structure of the meter and the plug-in mechanism of the present invention; Figure 4 This is a schematic diagram of the insertion and removal mechanism of the present invention; Figure 5 This is a schematic diagram showing the positional structure of the outer cover mechanism and the inner cover mechanism of the present invention; Figure 6 This is a sectional view of the outer cover mechanism of the present invention; Figure 7 This is a sectional view of the inner cover mechanism of the present invention; Figure 8 This is a sectional side view of the inner cover mechanism of the present invention.

[0011] In the diagram: 1. Outer cover mechanism; 2. Insertion / removal mechanism; 3. Inner cover mechanism; 4. Box door; 5. Electricity meter; 6. Switch; 11. Outer cover compartment; 12. Notched frame; 13. Top cover plate; 14. Outer frame plate; 15. Rubber plate; 16. Inner frame plate; 17. Inner support plate; 21. Connecting buckle; 22. Bolt; 23. Pressure plate; 24. Guide rod; 25. Insertion / removal block; 26. Insulating sleeve; 27. Clamping block; 28. Inner washer ring; 29. ​​Outer cover block; 31. Inner cover compartment; 32. Bending square tube; 33. Rubber washer ring; 34. Fixing plate; 35. Connecting frame; 36. Sliding frame; 37. Elastic pad plate. Detailed Implementation

[0012] Example 1, Reference Figures 1 to 4 The present invention provides this technical solution: A pluggable protective multi-protection meter box, comprising: The outer cover mechanism 1 has a door 4 installed on its outer side and an inner cover mechanism 3 installed inside the outer cover mechanism 1. The inner cover mechanism 3 has an electric meter 5 and a switch 6 installed inside the inner cover mechanism 3. The electric meter 5 and the switch 6 are electrically connected, and each wiring position of the electric meter 5 is equipped with a plug-in mechanism 2. The insertion / removal mechanism 2 includes a connecting buckle 21. Bolts 22 are installed on the inner wall of the connecting buckle 21, which is fixedly connected to the wiring position of the meter 5 via the bolts 22. A pressure plate 23 is fixedly installed on the top of the inner wall of the connecting buckle 21. An insertion / removal block 25 is slidably installed on the inner wall of the connecting buckle 21. Both sides of the insertion / removal block 25 have notches, and both sides of the connecting buckle 21 have sliding grooves. A locking block 27 is slidably installed in each of the sliding grooves of the connecting buckle 21. The connecting buckle 21 is fixed to the wiring position of the meter 5 by the bolts 22, and the end of the cable to be connected to the meter 5 is connected and fixed to the insertion / removal block 25. When connecting the meter, the insertion / removal block 25 is inserted into the connecting buckle 21 by holding the insulating sleeve 26. One end of the locking block 27 engages with the notch of the insertion / removal block 25, and the locking block 27 engages with the notch of the insertion / removal block 25. The other end of 7 is fixedly installed with a guide rod 24. Both sides of the connecting buckle 21 are fixedly installed with outer cover blocks 29. The inner wall of the outer cover block 29 is slidably adapted to the outer side of the locking block 27. The end of the guide rod 24 away from the locking block 27 passes through the outer cover block 29 and extends to its outer side. When inserted, the inclined surface at the top of the insertion block 25 first contacts the locking block 27, causing the locking block 27 to press the inner pad ring 28 to deform to both sides, so that the locking block 27 slides on the inner wall of the outer cover block 29. After the notch position of the insertion block 25 corresponds to the locking block 27, the elastic force after the inner pad ring 28 is deformed is used to push the locking block 27, so that the locking block 27 is locked into the notch position of the insertion block 25, thus fixing the insertion block 25 and the connecting buckle 21. The inner pad ring 28 is fixedly installed between the locking block 27 and the outer cover block 29. The inner pad ring 28 is made of elastic material.

[0013] The bottom of the pressure plate 23 is a recessed slope at the center, and the top of the plug-in block 25 is a raised slope at the center. The top of the plug-in block 25 fits against the bottom of the pressure plate 23. A cable connection groove is provided at the bottom of the plug-in block 25, and an insulating sleeve 26 is fixedly installed on the outside of the plug-in block 25.

[0014] Example 2, based on Example 1, with reference to Figures 5 to 6 The outer cover mechanism 1 includes an outer cover compartment 11. An outer frame plate 14 is fixedly installed on the inner wall of the outer cover compartment 11 near the box door 4. A buckle is provided on the outer side of the outer frame plate 14, and the outer frame plate 14 is rotatably connected to the box door 4 through the buckle. An inner frame plate 16 is slidably installed on the inner wall of the outer cover compartment 11. During the buffer movement of the inner cover compartment 31, the arc-shaped protrusion of the inner support plate 17 contacts the outer side of the inner cover compartment 31, reducing the contact surface with the inner cover compartment 31 and reducing the frictional resistance when the inner cover compartment 31 slides. At the same time, during the sliding process, the inner frame plate 16 is driven to slide synchronously. During the reset process, the rubber plate 15 provides buffer protection on the outer frame plate 14. The rubber plate 15 is fixedly installed on the side of the inner frame plate 16 near the outer frame plate 14.

[0015] The top of the outer cover 11 is provided with a rectangular groove, and a notched frame 12 is fixedly installed at the rectangular groove of the outer cover 11. Notches are provided on both sides of the top of the notched frame 12, and a top cover plate 13 is fixedly installed on the top of the notched frame 12. The two ends of the top cover plate 13 are inclined downwards. The outer cover 11 cooperates with the inner cover 31, and the inner support plate 17 is used to provide inclined support between the outer cover 11 and the inner cover 31. When impacted, the double-layer shell mechanism formed by the support of the inner support plate 17 and the outer cover 11 and the inner cover 31 resists the impact from the outside. The inner support plate 17 is fixedly installed on both sides of the inner wall of the outer cover 11. The end of the inner support plate 17 away from the outer cover 11 is inclined towards the door 4, and the end of the outer cover 11 away from the outer cover 11 is provided with an arc-shaped protrusion.

[0016] Example 3, based on Examples 1 and 2, with reference to Figures 7 to 8 The inner cover mechanism 3 includes a connecting frame 35, which is fixedly installed at the center of the inner wall of the outer cover compartment 11. A sliding frame 36 is slidably installed on the inner wall of the connecting frame 35. A fixing plate 34 is fixedly installed at one end of the sliding frame 36. An elastic pad 37 is fixedly installed between the fixing plate 34 and the outer cover compartment 11. The upper and lower sides of the elastic pad 37 are in contact with the inner wall of the connecting frame 35. In the initial state, the sliding frame 36 is pressed against the elastic pad 37 between the fixing plate 34 and the outer cover compartment 11, so that the sliding frame 36 is located inside the connecting frame 35 away from the outer cover compartment 11. An inner cover compartment 31 is fixedly installed at the other end of the connecting frame 35. The outer side of the inner cover compartment 31 near the outer frame plate 14 is fixedly connected to the inner wall of the inner frame plate 16. The two sides of the inner cover compartment 31 are in contact with the arc-shaped protrusions of the inner support plate 17.

[0017] The top of the inner cover 31 is provided with a rectangular groove, and a rubber pad ring 33 is fixedly installed in the rectangular groove of the inner cover 31. A bent square tube 32 is fixedly installed on the inner wall of the rubber pad ring 33. The bent square tube 32 is located between the outer cover 11 and the inner cover 31. The center of the bent square tube 32 bends downwards, and the top of the outer side of the bent square tube 32 fits against the rectangular groove of the outer cover 11. During vibration, when the vibration pressure is transmitted to the inner cover 31, the sliding frame 36 drives the fixed plate 34 to press the elastic pad. 37, the elastic pad 37 deforms and buffers under vibration pressure. At the same time, during the buffering process, the inner cover 31 slides under the restriction of the outer cover mechanism 1. The top of the curved square tube 32 is higher than the top of the outer cover 11. At the same time, the center end of the curved square tube 32 bends downwards. During the exhaust and heat dissipation process, water droplets entering from the outside accumulate at the downward bend end of the curved square tube 32 and cannot enter the inner cover 31. There is also a gap between the curved square tube 32 and the notched frame 12.

[0018] When in use, the meter box is installed at the designated location on the power grid, and the power grid line is connected to the switch 6. The current in the power grid line is measured through the cable connection between the switch 6 and the meter 5. At the same time, during use, the plug-in mechanism 2 is quickly connected to the wiring position of the meter 5, and the outer cover mechanism 1 and the inner cover mechanism 3 cooperate to form a protective shell mechanism.

[0019] In the plug-in mechanism 2, the connecting buckle 21 is fixed to the wiring position of the meter 5 by bolt 22, and the end of the cable that needs to be connected to the meter 5 is connected and fixed to the plug-in block 25. When connecting the meter, the plug-in block 25 is inserted into the inside of the connecting buckle 21 by holding the insulating sleeve 26. When inserted, the inclined surface at the top of the plug-in block 25 first contacts the locking block 27, causing the locking block 27 to press the inner pad ring 28 to deform to both sides, so that the locking block 27 slides on the inner wall of the outer cover block 29. After the notch position of the plug-in block 25 corresponds to the locking block 27, the elastic force after the inner pad ring 28 is deformed is used to push the locking block 27, so that the locking block 27 is locked into the notch position of the plug-in block 25, thus fixing the plug-in block 25 and the connecting buckle 21.

[0020] In the inner cover mechanism 3, the elastic pad 37 between the fixed plate 34 and the outer cover chamber 11 presses against the sliding frame 36 in the initial state, so that the sliding frame 36 is inside the connecting frame 35 at the end away from the outer cover chamber 11. At the same time, during the vibration process, when the vibration pressure is transmitted to the inner cover chamber 31, the sliding frame 36 drives the fixed plate 34 to press the elastic pad 37, so that the elastic pad 37 deforms and buffers under the vibration pressure. At the same time, during the buffering process, the inner cover chamber 31 slides under the restriction of the outer cover mechanism 1. Meanwhile, the downward bend at the center end of the curved square tube 32 causes water droplets entering from the outside to accumulate at the downward bend end of the curved square tube 32 after entering the ventilation and heat dissipation process, and they cannot enter the inner cover chamber 31.

[0021] In the outer casing mechanism 1, the outer casing 11 cooperates with the inner casing 31, and the inner support plate 17 provides inclined support between the outer casing 11 and the inner casing 31. When impacted, the double-layer shell mechanism formed by the support of the inner support plate 17 and the outer casing 11 and the inner casing 31 resists the impact from the outside. At the same time, during the buffering movement of the inner casing 31, the arc-shaped protrusion of the inner support plate 17 contacts the outer side of the inner casing 31, reducing the contact surface with the inner casing 31 and reducing the frictional resistance when the inner casing 31 slides. During the sliding process, the inner frame plate 16 slides synchronously. During the reset process, the rubber plate 15 provides buffer protection on the outer frame plate 14.

Claims

1. A pluggable protective multi-protection meter box, characterized in that, include: An outer cover mechanism (1) is provided with a door (4) installed on the outside of the outer cover mechanism (1). An inner cover mechanism (3) is provided inside the outer cover mechanism (1). An electric meter (5) and a switch (6) are installed inside the inner cover mechanism (3). The electric meter (5) and the switch (6) are electrically connected. A plug-in mechanism (2) is installed at each wiring position of the electric meter (5). The insertion / removal mechanism (2) includes a connecting buckle (21), the inner wall of which is fitted with bolts (22). The connecting buckle (21) is fixedly connected to the wiring position of the meter (5) via the bolts (22). A pressure plate (23) is fixedly installed on the top of the inner wall of the connecting buckle (21). A plugging / removing block (25) is slidably installed on the inner wall of the connecting buckle (21). Both sides of the plugging / removing block (25) are provided with notches. Both sides of the connecting buckle (21) are provided with sliding grooves. A locking block is slidably installed at the sliding groove of the connecting buckle (21). 27), one end of the locking block (27) is engaged with the notch of the plug-in block (25), and the other end of the locking block (27) is fixedly installed with a guide rod (24). Both sides of the connecting buckle (21) are fixedly installed with outer cover blocks (29). The inner wall of the outer cover block (29) is slidably adapted to the outer side of the locking block (27). The end of the guide rod (24) away from the locking block (27) passes through the outer cover block (29) and extends to its outer side. An inner pad ring (28) is fixedly installed between the locking block (27) and the outer cover block (29). The inner pad ring (28) is made of elastic material.

2. The plug-in protected multi-layered protection meter box according to claim 1, characterized in that: The bottom of the pressure plate (23) is a sloping surface with a recessed center, and the top of the plug-in block (25) is a sloping surface with a raised center. The top of the plug-in block (25) is in contact with the bottom of the pressure plate (23). The bottom of the plug-in block (25) is provided with a cable connection groove, and an insulating sleeve (26) is fixedly installed on the outside of the plug-in block (25).

3. The plug-in protected multi-layered protection meter box according to claim 2, characterized in that: The outer cover mechanism (1) includes an outer cover compartment (11). An outer frame plate (14) is fixedly installed on one end of the inner wall of the outer cover compartment (11) near the box door (4). A turnbuckle is provided on the outer side of the outer frame plate (14), and the outer frame plate (14) is rotatably connected to the box door (4) through the turnbuckle.

4. The plug-in protected multi-layered meter box according to claim 3, characterized in that: The inner wall of the outer cover (11) is slidably fitted with an inner frame plate (16), and a rubber plate (15) is fixedly installed on the side of the inner frame plate (16) near the outer frame plate (14).

5. A pluggable protective multi-protection meter box according to claim 4, characterized in that: The top of the outer cover (11) is provided with a rectangular groove, and a notched frame (12) is fixedly installed at the rectangular groove of the outer cover (11). Notches are provided on both sides of the top of the notched frame (12), and a top cover plate (13) is fixedly installed on the top of the notched frame (12). The two ends of the top cover plate (13) are inclined downward.

6. A pluggable protective multi-protection meter box according to claim 5, characterized in that: Both sides of the inner wall of the outer cover (11) are fixedly installed with inner support plates (17). The end of the inner support plate (17) away from the outer cover (11) is inclined towards the door (4), and the end of the outer cover (11) away from the outer cover (11) is provided with an arc-shaped protrusion.

7. A pluggable protective multi-protection meter box according to claim 6, characterized in that: The inner cover mechanism (3) includes a connecting frame (35), which is fixedly installed at the center of the inner wall of the outer cover compartment (11). A sliding frame (36) is slidably installed on the inner wall of the connecting frame (35). A fixing plate (34) is fixedly installed at one end of the sliding frame (36). An elastic pad (37) is fixedly installed between the fixing plate (34) and the outer cover compartment (11). The upper and lower sides of the elastic pad (37) are in contact with the inner wall of the connecting frame (35).

8. A pluggable protective multi-protection meter box according to claim 7, characterized in that: The other end of the connecting frame (35) is fixedly installed with an inner cover (31), and the outer side of the inner cover (31) near the outer frame plate (14) is fixedly connected to the inner wall of the inner frame plate (16), and the two sides of the inner cover (31) are in contact with the arc-shaped protrusion of the inner support plate (17).

9. A pluggable protective multi-protection meter box according to claim 8, characterized in that: The top of the inner cover (31) is provided with a rectangular through groove, and a rubber gasket (33) is fixedly installed at the rectangular through groove of the inner cover (31). A curved square tube (32) is fixedly installed on the inner wall of the rubber gasket (33), and the curved square tube (32) is located between the outer cover (11) and the inner cover (31).

10. A pluggable protective multi-protection meter box according to claim 9, characterized in that: The center of the zigzag square tube (32) bends downwards at an angle, and the top of the outer side of the zigzag square tube (32) fits into the rectangular groove of the outer cover (11). The top of the zigzag square tube (32) is higher than the top of the outer cover (11), and there is a gap between the zigzag square tube (32) and the notched frame (12).

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