Buried emergency power distribution maintenance device

Abstract

The application relates to the technical field of security guarantee supply, in particular to a buried emergency power distribution maintenance device, which comprises an equipment cabin, a funnel-shaped guide ring is fixedly installed at the top of the inner cavity of the equipment cabin, a top ring is fixedly installed at the top of the guide ring, a top cover is sealingly sleeved on the inner side of the top ring, a movable plate is sleeved on the inner side of the guide ring, an emergency box for emergency power distribution maintenance is fixedly installed at the top of the movable plate, and a movable assembly capable of reciprocating by rotating is arranged on the inner side of the equipment cabin. The movable assembly composed of a rotating plate, a transmission shaft and a mounting block is matched with a driving motor, a synchronous belt and a rotating shaft, so that automatic and stable lifting of the emergency box can be realized, manual digging or external lifting equipment is not needed, maintenance personnel can only remotely start the motor to lift the emergency box to the ground, the preparation time of emergency power distribution maintenance is greatly shortened, and the demand for quick response during power grid sudden failure is met.

Description

Technical Field

[0001] This invention relates to the field of safety assurance supply technology, specifically to an underground emergency power distribution maintenance device. Background Technology

[0002] In the field of power grid security and supply assurance, underground emergency power distribution maintenance devices are widely used in urban power systems, transportation hubs, and important public places. They provide rapid maintenance interfaces and emergency power distribution support during sudden power outages, ensuring continuous and reliable power supply to the grid. However, most existing underground power distribution maintenance devices adopt fixed structures or simple screw-lifting mechanisms. Maintenance requires manual excavation or external lifting equipment to raise the emergency box to the ground, which is cumbersome and time-consuming, making it difficult to meet the rapid response needs in emergency situations. Furthermore, the underground environment is susceptible to groundwater level fluctuations, surface rainwater infiltration, and pipeline... Due to factors such as leakage, water accumulation to varying degrees often occurs inside the equipment compartment. Traditional devices generally lack effective automatic drainage and anti-accidental contact mechanisms. Long-term water accumulation not only accelerates the corrosion of metal components but may also cause electrical equipment to become damp and short-circuit, leading to leakage or fire accidents, seriously affecting the reliability and safety of emergency power supply. The existing devices mostly use simple rubber sealing strips between the top cover and the compartment. The sealing performance gradually decreases with the service time. When pedestrians or vehicles accidentally step on it, it can easily cause the top cover to deform or the seal to fail. Moreover, the stepping force cannot be used for auxiliary drainage or drive control, resulting in a waste of daily maintenance resources. While some improved models employ direct motor-driven lifting mechanisms, they are prone to malfunctions when groundwater levels rise abnormally or external interference triggers the control system. This can cause the emergency box to rise unexpectedly, impacting road traffic and pedestrian safety, and potentially leading to secondary accidents such as electric shocks due to exposed live components. Furthermore, existing devices often fail to automatically detect water level changes and promptly cut off or adjust the drive mechanism in flooded environments, resulting in prolonged idling or overload damage to the motor, increasing maintenance costs. Summary of the Invention

[0003] The purpose of this invention is to provide an underground emergency power distribution maintenance device to solve the problem that most existing underground power distribution maintenance devices mentioned in the background art adopt a fixed structure or a simple spiral lifting mechanism. During maintenance, manual digging or external lifting equipment is required to lift the emergency power distribution box to the ground, which is cumbersome, time-consuming and difficult to meet the needs of rapid response in emergency situations.

[0004] To achieve the above objectives, the present invention provides the following technical solution: It includes an equipment compartment, wherein a funnel-shaped guide ring is fixedly installed on the top of the inner cavity of the equipment compartment, and a top ring is fixedly installed on the top of the guide ring. A top cover is sealed and sleeved on the inner side of the top ring. A movable plate is sleeved on the inner side of the guide ring, and an emergency box for emergency power distribution maintenance is fixedly installed on the top of the movable plate. A movable component that reciprocates by rotation is provided on the inner side of the equipment compartment. The movable component includes a base plate fixedly installed on the inner side of the equipment compartment, and fixed frames are symmetrically installed on the top of the base plate. A rotating plate is rotatably sleeved on the middle of each of the two sets of fixed frames, and a drive shaft is rotatably connected to the outer side of the other end of the rotating plate. A mounting block is rotatably connected to the outer side of the other end of the drive shaft, and the top of the mounting block is fixedly connected to the bottom of the movable plate.

[0005] Preferably, a rotating shaft is rotatably arranged between the two sets of fixed frames, and the rotating shaft passes through the rotating plate and is fixedly connected to the rotating plate. A drive motor is spaced apart on one side of the two sets of fixed frames. A synchronous belt is sleeved on the outer side of the output end of the drive motor, and the inner side of the synchronous belt meshes with the outer side of the rotating shaft. A mounting bracket is fixedly installed on the outer side of the drive motor, and the bottom of the mounting bracket is fixedly connected to the top of the base plate. By setting up a movable assembly consisting of a rotating plate, a drive shaft, and a mounting block, and in conjunction with a drive motor, a synchronous belt, and a rotating shaft, the emergency box can be automatically and smoothly raised and lowered without the need for manual digging, thus significantly shortening the preparation time for emergency power distribution maintenance.

[0006] Preferably, a water pump is fixedly installed on the side of the two sets of fixed frames opposite to the drive motor. An inlet pipe and an outlet pipe are respectively installed on the outside of the water pump. The outlet pipe extends through the bottom plate to its bottom. The inlet pipe is located above the bottom plate. An inlet groove is arrayed on the outside of the other end of the inlet pipe.

[0007] Preferably, a steering shaft is provided at intervals above the base plate, and a transmission frame is fixedly installed at both ends of the steering shaft. The transmission frame extends through the base plate to its bottom, and the outer side of the steering shaft meshes with the inner side of the timing belt.

[0008] Preferably, a fixing plate is fixedly installed between the two sets of transmission frames, and a second spring is fixedly installed at the bottom of the fixing plate, and the bottom of the second spring is fixedly connected to the top of the base plate.

[0009] Preferably, the top of the base plate is equipped with guide rods arranged in a triangular array, and a movable collar is slidably sleeved on the outer side of the guide rods. The movable collar extends through the movable plate to its outer side and is fixedly connected to the movable plate. The movable collar, in conjunction with the guide rods, facilitates limiting the movement of the movable plate.

[0010] Preferably, the top of the movable plate is equipped with a top collar in a triangular array, and a telescopic shaft extending to its top is sleeved inside the top collar. A first spring is fixedly installed at the bottom of the telescopic shaft, and the bottom of the first spring is fixedly installed to the top of the movable plate. The top of the telescopic shaft is fixedly installed to the bottom of the top cover.

[0011] Preferably, a protrusion is fixedly installed on the top of the top cover, and the protrusion is arc-shaped. The protrusion facilitates marking of the device and increases the curiosity of passersby, thereby guiding pedestrians to step on the protrusion. A funnel-shaped sealing ring is fixedly installed on the bottom of the top cover, and the outer side of the sealing ring is sealed to the inner side of the top ring.

[0012] Preferably, a transmission rod is fixedly installed at the bottom of a set of telescopic shafts. The transmission rod extends through the movable plate and the base plate to its bottom. A pressure plate is fixedly installed at the bottom of the transmission rod. The top of the pressure plate is fixedly connected to the bottom of the base plate through a spring piece. A guide shaft is installed obliquely downward on the outer side of the transmission rod. An extension plate is fixedly installed at the bottom of the guide shaft. The bottom of the extension plate is fixedly installed to the top of a set of transmission frames. When pedestrians step on the top cover, the top cover presses down on the telescopic shaft and the first spring, which in turn drives the pressure plate to squeeze the bottom of the equipment compartment through the transmission rod. With the help of the stepping force, the liquid accumulated at the bottom of the compartment is discharged through the drain pipe, which realizes auxiliary drainage, saves energy and improves the efficiency of water removal.

[0013] Preferably, a float plate is provided at intervals on one side of the pressure plate, the top of the float plate is fixedly connected to the bottom of the transmission frame, and a right-angled drain pipe is provided on one side of the float plate, with protective caps installed at intervals on the top of the drain pipe. The protective cap can also protect the drain outlet of the drain pipe during drainage, preventing impurities from entering and causing blockages, and can also warn pedestrians in the vicinity.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up a movable component consisting of a rotating plate, a drive shaft, and a mounting block, and in conjunction with a drive motor, a synchronous belt, and a rotating shaft, the emergency box can be automatically and smoothly raised and lowered. No manual digging or external lifting equipment is required. Maintenance personnel can simply start the motor remotely to lift the emergency box to the ground, which greatly shortens the preparation time for emergency power distribution maintenance and meets the need for rapid response in the event of a sudden power grid failure.

[0015] 2. By utilizing water pumps, inlet pipes, outlet pipes, and inlet troughs arrayed on their inner sides, accumulated water seeping into the equipment compartment can be actively and promptly pumped to the bottom of the compartment, preventing liquid from accumulating on the top of the bottom plate for extended periods. This effectively prevents electrical equipment from short-circuiting due to moisture or metal parts from corroding. Furthermore, the sealing structure of the top cover, sealing ring, and top ring further reduces the risk of external moisture infiltration. Additionally, by using a float plate to sense water level changes and drive the transmission frame to adjust the tension of the synchronous belt, the meshing tightness between the synchronous belt and the rotating shaft can be reduced when the water level rises abnormally, preventing the motor from starting accidentally in a waterlogged environment. This ensures the long-term reliable operation of the equipment in humid environments.

[0016] 3. When a pedestrian accidentally steps on the top cover, the top cover presses down on the telescopic shaft and the first spring, which drives the pressure plate to squeeze the bottom of the equipment compartment through the transmission rod. The liquid accumulated at the bottom of the compartment is discharged through the drain pipe by the stepping force, realizing passive auxiliary drainage, which is both energy-saving and improves the efficiency of water removal. At the same time, the arc-shaped protrusion on the top of the top cover can not only serve as a marker, but also attract pedestrians to step on it naturally, further increasing the opportunity for drainage. When the transmission rod moves down, it compresses the transmission frame downward through the guide shaft and extension plate, keeping the synchronous belt taut and ensuring effective transmission of motor power, preventing belt slippage. Overall, it significantly improves the response speed of power grid security supply, equipment durability and operational safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 This is an exploded view of the connection structure of the top cover of the present invention; Figure 4 This is a schematic diagram of the internal structure of the equipment compartment of the present invention; Figure 5 This is a schematic diagram of the connection structure of the movable plate of the present invention; Figure 6 This is a schematic diagram of the connection structure at the top of the base plate of the present invention; Figure 7 This is an exploded view of the connection structure of the guide shaft of the present invention; Figure 8 This is a bottom view of the connection structure at the bottom of the base plate of the present invention.

[0018] In the attached diagram, the components represented by each number are as follows: 1. Equipment compartment; 2. Guide ring; 3. Top ring; 4. Top cover; 5. Protrusion; 6. Sealing ring; 7. Movable plate; 8. Guide rod; 9. Emergency box; 10. Movable collar; 11. Top collar; 12. Telescopic shaft; 13. First spring; 14. Transmission rod; 15. Guide shaft; 16. Extension plate; 17. Base plate; 18. Drive motor; 19. Mounting bracket; 20. Synchronous belt; 21. Transmission frame; 22. Steering shaft; 23. Fixed plate; 24. Second spring; 25. Rotating shaft; 26. Water pump; 27. Inlet pipe; 28. Inlet tank; 29. ​​Outlet pipe; 30. Pressure plate; 31. Float plate; 32. Drain pipe; 33. Protective cap; 34. Fixed bracket; 35. Rotating plate; 36. Transmission shaft; 37. Mounting block. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides a technical solution: such as Figures 1-8 The buried emergency power distribution maintenance device shown includes an equipment compartment 1. A funnel-shaped guide ring 2 is fixedly installed on the top of the inner cavity of the equipment compartment 1, and a top ring 3 is fixedly installed on the top of the guide ring 2. A top cover 4 is sealed and sleeved on the inner side of the top ring 3. A movable plate 7 is sleeved on the inner side of the guide ring 2, and an emergency box 9 for emergency power distribution maintenance is fixedly installed on the top of the movable plate 7. A movable component that can reciprocate by rotation is provided on the inner side of the equipment compartment 1. The movable component includes a base plate 17 fixedly installed on the inner side of the equipment compartment 1, and a fixed frame 34 is symmetrically installed on the top of the base plate 17. A rotating plate 35 is rotatably sleeved on the middle of each of the two sets of fixed frames 34, and a drive shaft 36 is rotatably connected to the outer side of the other end of the rotating plate 35. A mounting block 37 is rotatably connected to the outer side of the other end of the drive shaft 36. The top of the mounting block 37 is fixedly connected to the bottom of the movable plate 7.

[0021] Furthermore, a rotating shaft 25 is rotatably arranged between the two sets of fixed frames 34, and the rotating shaft 25 passes through the rotating plate 35 and is fixedly connected to the rotating plate 35. A drive motor 18 is spaced apart on one side of the two sets of fixed frames 34. A synchronous belt 20 is sleeved on the outer side of the output end of the drive motor 18, and the inner side of the synchronous belt 20 meshes with the outer side of the rotating shaft 25. A mounting bracket 19 is fixedly installed on the outer side of the drive motor 18, and the bottom of the mounting bracket 19 is fixedly connected to the top of the base plate 17.

[0022] Furthermore, a water pump 26 is fixedly installed on the side of the two sets of fixed brackets 34 opposite to the drive motor 18. An inlet pipe 27 and an outlet pipe 29 are respectively installed on the outside of the water pump 26. The outlet pipe 29 extends through the bottom plate 17 to its bottom. The inlet pipe 27 is located above the bottom plate 17. An inlet groove 28 is arrayed on the outside of the other end of the inlet pipe 27.

[0023] Furthermore, a steering shaft 22 is provided at intervals above the base plate 17, and a transmission frame 21 is fixedly installed at both ends of the steering shaft 22. The transmission frame 21 extends through the base plate 17 to its bottom, and the outer side of the steering shaft 22 meshes with the inner side of the synchronous belt 20. Start the drive motor 18, and drive the rotating shaft 25 to rotate through the synchronous belt 20 set at the output end of the drive motor 18. This will drive the two sets of rotating plates 35 fixedly installed thereto to rotate, which in turn will drive the transmission shaft 36 to move in conjunction with the mounting block 37 and the movable plate 7, thereby driving the emergency box 9 placed on top of it to move.

[0024] Furthermore, a fixing plate 23 is fixedly installed between the two sets of transmission frames 21, and a second spring 24 is fixedly installed at the bottom of the fixing plate 23, and the bottom of the second spring 24 is fixedly connected to the top of the base plate 17. By setting up a movable assembly consisting of a rotating plate 35, a drive shaft 36, and a mounting block 37, and cooperating with a drive motor 18, a synchronous belt 20, and a rotating shaft 25, the emergency box 9 can be automatically and smoothly lifted and lowered without the need for manual digging or external lifting equipment. Maintenance personnel can lift the emergency box 9 to the ground simply by remotely starting the motor.

[0025] Furthermore, guide rods 8 are installed in a triangular array on the top of the base plate 17. A movable collar 10 is slidably sleeved on the outer side of the guide rods 8. The movable collar 10 extends through the movable plate 7 to its outer side and is fixedly connected to the movable plate 7. The movable collar 10, in conjunction with the guide rods 8, facilitates the limitation of the movable plate 7 when it moves.

[0026] Furthermore, a top collar 11 is installed in a triangular array on the top of the movable plate 7. A telescopic shaft 12 extending to the top of the top collar 11 is sleeved inside the top collar 11. A first spring 13 is fixedly installed at the bottom of the telescopic shaft 12, and the bottom of the first spring 13 is fixedly installed with the top of the movable plate 7. The top of the telescopic shaft 12 is fixedly installed with the bottom of the top cover 4.

[0027] Furthermore, a protrusion 5 is fixedly installed on the top of the top cover 4, and the protrusion 5 is arc-shaped. The protrusion 5 facilitates marking of the device and can also increase the curiosity of passersby, thereby guiding pedestrians to step on the protrusion 5. A funnel-shaped sealing ring 6 is fixedly installed on the bottom of the top cover 4, and the outer side of the sealing ring 6 is sealed to the inner side of the top ring 3. When a pedestrian accidentally steps on the top cover 4, the top cover 4 presses down the telescopic shaft 12 and the first spring 13, which drives the pressure plate 30 to squeeze the liquid accumulated at the bottom of the equipment compartment 1 through the transmission rod 14. With the help of the stepping force, the liquid accumulated at the bottom of the compartment is discharged through the drain pipe 32, thus achieving auxiliary drainage. At the same time, the arc-shaped protrusion 5 on the top of the top cover 4 can not only serve as a marker, but also attract pedestrians to step on it naturally, further increasing the possibility of drainage.

[0028] Furthermore, a transmission rod 14 is fixedly installed at the bottom of a set of telescopic shafts 12. The transmission rod 14 extends through the movable plate 7 and the base plate 17 to its bottom. A pressure plate 30 is fixedly installed at the bottom of the transmission rod 14. The top of the pressure plate 30 is fixedly connected to the bottom of the base plate 17 through a spring piece. A guide shaft 15 is installed obliquely downward on the outer side of the transmission rod 14. An extension plate 16 is fixedly installed at the bottom of the guide shaft 15. The bottom of the extension plate 16 is fixedly installed to the top of a set of transmission frames 21. The inclined guide shaft 15, in conjunction with the transmission rod 14, facilitates the pressing down of the transmission frame 21.

[0029] Furthermore, a float plate 31 is provided at intervals on one side of the pressure plate 30. The top of the float plate 31 is fixedly connected to the bottom of the transmission frame 21. A right-angled drain pipe 32 is provided on one side of the float plate 31, and a protective cap 33 is installed at intervals on the top of the drain pipe 32. The protective cap 33 can also protect the drain outlet of the drain pipe 32 when it is draining, preventing impurities from entering and causing blockage, and can also warn pedestrians in the vicinity.

[0030] Working principle: During use, firstly, holes are made in the pre-installed ground to accommodate the equipment compartment 1, guide ring 2, and top ring 3. Then, the equipment compartment 1, guide ring 2, and top ring 3 are placed inside the holes and fixed in place. When the device is used for a long time and some liquid seeps into it, the liquid can enter through the gap between the top cover 4 and the top ring 3, and be guided by the guide ring 2, thereby transporting the liquid to the top of the bottom plate 17. As the liquid inflow increases, the water pump 26 installed on the top of the bottom plate 17 can be started. The liquid accumulated on the top of the bottom plate 17 is transported to the bottom of the bottom plate 17 through the liquid outlet pipe 29 through the liquid inlet pipe 27 installed at the liquid inlet end of the water pump 26 and the liquid inlet trough 28 opened in the liquid inlet end array, thereby preventing the liquid from affecting the normal use of the equipment compartment 1. Under normal conditions, when a pedestrian passes by the device, the protrusion 5 fixedly installed on the top of the top cover 4 will attract the pedestrian to step on it, or when the pedestrian accidentally steps on it, the force of stepping will press down on the top cover 4 and transmit the pressure to the telescopic shaft 12, and squeeze the first spring 13 fixedly installed at its bottom. At this time, a set of telescopic shafts 12 will simultaneously compress the transmission rod 14 fixedly installed at its bottom, and use the transmission rod 14 to press down the pressure plate 30, thereby increasing the pressure between the bottom of the base plate 17 and the bottom of the inner cavity of the equipment compartment 1, so that the liquid accumulated inside is discharged to the ground through the drain pipe 32, thereby realizing the drain operation. The downward-moving transmission rod 14 compresses the transmission frame 21 downward through the guide shaft 15 that is inclined downward on its outer side and the extension plate 16 that is fixedly installed at its other end, thereby squeezing the synchronous belt 20, making it taut, and fully engaging with the output end of the rotating shaft 25 and the drive motor 18, thereby using the drive motor 18 in conjunction with the synchronous belt 20 to drive the rotating shaft 25 to rotate synchronously. As the liquid at the bottom of the base plate 17 increases, it continuously pushes the float plate 31 upward. The increasing buoyancy increases the buoyancy on the float plate 31, thereby pushing the transmission frame 21 upward. At the same time, the steering shaft 22 installed on the inner side of the transmission frame 21 moves upward, reducing the pressure of the steering shaft 22 on the timing belt 20. This increases the contact strength between the rotating shaft 25 and the timing belt 20, thus preventing the timing belt 20 from accidentally engaging with the drive motor 18 in harsh environments, causing the rotating shaft 25 to rotate. When the rotating shaft 25 rotates, it will drive the rotating plate 35 to rotate, which in turn drives the transmission shaft 36 connected to its other end to rotate. This, in turn, cooperates with the mounting block 37 to push the movable plate 7. When the movable plate 7 moves, it slides on the outside of the guide rod 8 through the movable collar 10 installed inside it, thereby driving the emergency box 9 installed on the top of the movable plate 7 to move upward until it moves to the ground. At this time, maintenance personnel can directly connect the emergency box 9, thereby ensuring the safe supply of the power grid.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An underground emergency power distribution maintenance device, comprising an equipment compartment (1), characterized in that: A funnel-shaped guide ring (2) is fixedly installed on the top of the inner cavity of the equipment compartment (1), and a top ring (3) is fixedly installed on the top of the guide ring (2). A top cover (4) is sealed on the inner side of the top ring (3). A movable plate (7) is sleeved on the inner side of the guide ring (2), and an emergency box (9) for emergency power distribution maintenance is fixedly installed on the top of the movable plate (7). An active component that can move back and forth by rotation is provided on the inner side of the equipment compartment (1). The active component includes a bottom plate (17) fixedly installed on the inner side of the equipment compartment (1), and a fixed frame (34) is symmetrically installed on the top of the bottom plate (17). A rotating plate (35) is rotatably sleeved on the middle of the two sets of fixed frames (34), and a drive shaft (36) is rotatably connected to the outer side of the other end of the rotating plate (35). An installation block (37) is rotatably connected to the outer side of the other end of the drive shaft (36). The top of the installation block (37) is fixedly connected to the bottom of the movable plate (7).

2. The underground emergency power distribution maintenance device according to claim 1, characterized in that: A rotating shaft (25) is rotatably arranged between the two sets of fixed frames (34), and the rotating shaft (25) passes through the rotating plate (35) and is fixedly connected to the rotating plate (35). A drive motor (18) is arranged at intervals on one side of the two sets of fixed frames (34). A synchronous belt (20) is sleeved on the outer side of the output end of the drive motor (18), and the inner side of the synchronous belt (20) meshes with the outer side of the rotating shaft (25). A mounting bracket (19) is fixedly installed on the outer side of the drive motor (18), and the bottom of the mounting bracket (19) is fixedly connected to the top of the base plate (17).

3. The underground emergency power distribution maintenance device according to claim 2, characterized in that: Two sets of fixed brackets (34) are fixedly installed with water pumps (26) on the side opposite to the drive motor (18). The water pumps (26) are respectively equipped with inlet pipes (27) and outlet pipes (29) on the outside. The outlet pipes (29) extend through the bottom plate (17) to its bottom. The inlet pipes (27) are located above the bottom plate (17). The other end of the inlet pipes (27) is provided with inlet grooves (28) arranged on the outside.

4. The underground emergency power distribution maintenance device according to claim 3, characterized in that: A steering shaft (22) is provided at intervals above the base plate (17), and a transmission frame (21) is fixedly installed at both ends of the steering shaft (22). The transmission frame (21) extends through the base plate (17) to its bottom, and the outer side of the steering shaft (22) meshes with the inner side of the synchronous belt (20).

5. The underground emergency power distribution maintenance device according to claim 4, characterized in that: A fixing plate (23) is fixedly installed between the two sets of transmission frames (21). A second spring (24) is fixedly installed at the bottom of the fixing plate (23), and the bottom of the second spring (24) is fixedly connected to the top of the base plate (17).

6. The underground emergency power distribution maintenance device according to claim 5, characterized in that: The top of the base plate (17) is equipped with guide rods (8) arranged in a triangular array. A movable collar (10) is slidably sleeved on the outside of the guide rods (8). The movable collar (10) extends through the movable plate (7) to its outside and is fixedly connected to the movable plate (7).

7. The underground emergency power distribution maintenance device according to claim 6, characterized in that: The top of the movable plate (7) is equipped with a top collar (11) arranged in a triangular array. The top collar (11) is fitted with a telescopic shaft (12) extending to its top. The bottom of the telescopic shaft (12) is fixedly installed with a first spring (13), and the bottom of the first spring (13) is fixedly installed with the top of the movable plate (7). The top of the telescopic shaft (12) is fixedly installed with the bottom of the top cover (4).

8. The underground emergency power distribution maintenance device according to claim 1, characterized in that: The top of the top cover (4) is fixedly installed with a protrusion (5), and the protrusion (5) is arc-shaped; the bottom of the top cover (4) is fixedly installed with a horn-shaped sealing ring (6), and the outer side of the sealing ring (6) is sealed to the inner side of the top ring (3).

9. The underground emergency power distribution maintenance device according to claim 7, characterized in that: A transmission rod (14) is fixedly installed at the bottom of a set of telescopic shafts (12). The transmission rod (14) extends through the movable plate (7) and the base plate (17) to its bottom. A pressure plate (30) is fixedly installed at the bottom of the transmission rod (14). The top of the pressure plate (30) is fixedly connected to the bottom of the base plate (17) through a spring piece. A guide shaft (15) is installed obliquely downward on the outside of the transmission rod (14). An extension plate (16) is fixedly installed at the bottom of the guide shaft (15). The bottom of the extension plate (16) is fixedly installed to the top of a set of transmission frames (21).

10. The underground emergency power distribution maintenance device according to claim 9, characterized in that: A float plate (31) is provided at intervals on one side of the pressure plate (30). The top of the float plate (31) is fixedly connected to the bottom of the transmission frame (21). A drain pipe (32) in the shape of a right angle is provided on one side of the float plate (31), and a protective cap (33) is installed at intervals on the top of the drain pipe (32).

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