Multifunctional mobile emergency power distribution vehicle

Abstract

The invention discloses a multifunctional mobile emergency power distribution vehicle, which relates to the technical field of power system emergency power supply, and comprises an electric vehicle main body, a storage box fixedly mounted at the top of the right end of the electric vehicle main body, a power distribution cabinet fixedly mounted at the left end of the inner cavity of the storage box, and a cable take-up and pay-off rack movably mounted at the right end of the bottom of the inner cavity of the storage box; the protection mechanism is arranged in the power distribution cabinet and used for insulating and protecting the power system. According to the power distribution vehicle, the electric vehicle body serves as a flexible bearing platform, the power distribution vehicle has the full-scene control moving capacity, a dispatching instruction is rapidly responded through a vehicle-mounted driving system, the power distribution vehicle flexibly shuttles back and forth in conventional scenes such as urban roads, industrial parks and rural streets, and the power distribution vehicle can also adapt to complex terrains such as muddy road sections and construction sites; the driving posture is rapidly adjusted by means of a vehicle body stabilizing system, nearby deployment and accurate in-place are achieved, the power distribution vehicle does not need additional transfer equipment, and an operator can directly drive the power distribution vehicle to a core area of a fault site.

Description

Technical Field

[0001] This invention relates to the field of emergency power supply technology for power systems, and specifically to a multi-functional mobile emergency power distribution vehicle. Background Technology

[0002] High-voltage direct current (HVDC) transmission is a core technology for cross-regional, high-capacity power transmission. As a critical node, the stable operation of the converter transformers in converter stations directly affects the safety and efficiency of the power grid. The control system, cooling system, and other auxiliary equipment of the converter transformers rely on a stable power supply. Failures in the station's power supply system can easily lead to power loss in these auxiliary equipment, resulting in unplanned outages of the converter transformers and even causing unipolar or bipolar blockage of the DC system, resulting in significant power losses.

[0003] In existing emergency power supply solutions, converter stations are mostly equipped with fixed emergency power supply boxes or designated emergency interfaces. However, when a fault occurs, maintenance personnel need to carry heavy cable reels and tools, and obtain diesel generators or UPS power supplies before wiring on site. This has many drawbacks: slow response speed, preparation and wiring take tens of minutes, delaying emergency repairs, poor flexibility, and fixed wiring points and heavy cables are difficult to adapt to equipment in different locations and models. Summary of the Invention

[0004] The purpose of this invention is to provide a multifunctional mobile emergency power distribution vehicle to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A multi-functional mobile emergency power distribution vehicle includes a vehicle body, a storage box is fixedly installed on the top right end of the vehicle body, a power distribution cabinet is fixedly installed on the left end of the inner cavity of the storage box, and a cable retractor is movably installed on the right end of the bottom of the inner cavity of the storage box. Also includes: The protective mechanism is installed inside the distribution cabinet and is used to insulate and protect the power system. An adjustment mechanism is provided at the bottom of the cable winding rack for adjusting the position of the cable winding rack, which adapts to the length of the cable being laid out.

[0006] A further improvement of the technical solution of the present invention is that: the protective mechanism includes a main power inlet circuit breaker, which is installed at the top of the inner wall of the distribution cabinet. A cable is fixedly connected to the top of the main power inlet circuit breaker, and an insulating sleeve is fixedly fitted to the other end of the cable. The outer side of the insulating sleeve is fixedly installed at the bottom of the inner cavity of the distribution cabinet. A primary grounding copper busbar is fixedly installed at the left end of the top of the inner wall of the distribution cabinet, and a secondary grounding copper busbar is fixedly installed at the right end of the top of the inner wall of the distribution cabinet. A branch power outlet circuit breaker is fixedly installed in the middle of the inner wall of the distribution cabinet, and a connecting cable is fixedly connected to the bottom of the branch power outlet circuit breaker.

[0007] A further improvement of the technical solution of the present invention is that: an insulating pad is fixedly installed at the bottom inside the insulating sleeve, the inside of the insulating pad is movably sleeved on the outside of the cable, an insulating disc is fixedly installed at the top of the inner cavity of the insulating sleeve, a rubber pressure block is fixedly installed on the inner side of the insulating disc, and a rubber ring is fixedly installed at the top of the inner cavity of the insulating disc.

[0008] A further improvement of the technical solution of the present invention is that: the adjustment mechanism includes an assembly base plate, a threaded screw is movably connected to the bottom of the assembly base plate, a drive motor is fixedly connected to one end of the threaded screw, and slide rails are fixedly installed at both ends of the bottom of the assembly base plate, with the bottom of the slide rails fixedly installed at the bottom of the inner cavity of the storage box.

[0009] A further improvement of the technical solution of the present invention is that: a wire roller is movably installed inside the cable winding rack, a rotating shaft is fixedly connected inside the wire roller, and a rotating motor is fixedly connected to one end of the rotating shaft.

[0010] A further improvement of the technical solution of the present invention is that: a wire roller outlet circuit breaker is fixedly installed on the side of the wire roller, a wire roller outlet socket is fixedly installed on the left end of the side of the wire roller, and a power indicator light is fixedly installed on the right end of the side of the wire roller.

[0011] A further improvement of the technical solution of the present invention is that: a support frame is fixedly connected to the front end of the roller, a support plate is fixedly installed on the top of the support frame, a sliding groove is opened on the top of the support plate, a movable base is movably installed inside the sliding groove, and a limit rod is fixedly installed on the top of the movable base.

[0012] A further improvement of the technical solution of the present invention is that: a movable block is movably installed inside the support plate, the top of the movable block is fixedly installed at the bottom of the movable base, a rack is fixedly installed at the upper and lower ends of the inner cavity of the movable block, a half-tooth block is meshed on the inner side of the rack, and a gear motor is fixedly connected inside the half-tooth block.

[0013] A further improvement of the technical solution of the present invention is that: the main power supply incoming circuit breaker is a three-phase four-wire system, corresponding to phase lines A, B, and C and the ground wire respectively, and the ground wire is connected to the secondary grounding copper busbar.

[0014] A further improvement of the technical solution of the present invention is that the outer side of the storage box has a three-sided door structure, which is used for the operation and maintenance of the power distribution cabinet and cable rack.

[0015] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: This invention provides a multi-functional mobile emergency power distribution vehicle. The power distribution vehicle uses the main body of the vehicle as a flexible carrier platform and has the ability to operate and move in all scenarios. It can quickly respond to dispatch commands through the on-board driving system and flexibly shuttle in conventional scenarios such as urban roads, industrial parks, and rural streets. It can also adapt to complex terrains such as muddy roads and construction sites. Relying on the vehicle stability system, it can quickly adjust its driving posture to achieve "nearby deployment and precise arrival". This power distribution vehicle does not require additional transfer equipment, and operators can drive it directly to the core area of ​​the fault site.

[0016] This invention provides a multi-functional mobile emergency power distribution vehicle. After the power supply line enters, power is distributed to branch circuits via branch outgoing switches. Each branch is equipped with independent protection functions. When an abnormal situation such as overload or short circuit occurs in a branch, the corresponding branch protection switch will automatically trip and cut off the faulty circuit, preventing the fault in a single branch from spreading and affecting the overall power supply system. This achieves "mutual non-interference" in power supply to each load, ensuring the normal operation of non-faulty branches and quickly locating the fault area, reducing the cost of fault diagnosis and repair. The entire protection design strictly follows the safety regulations of "one machine, one switch, one protection". Through the synergistic effect of multiple protection measures such as independent branch protection, double grounding, and insulation isolation, it fully meets the safety operation standards of emergency power supply equipment.

[0017] This invention provides a multi-functional mobile emergency power distribution vehicle. The drive motor drives the transmission structure to drive the cable rollers to rotate synchronously, thereby automatically releasing the cable. When the cable tension increases due to the increase in cable length, the adjustment mechanism automatically drives the cable roller mounting frame to move along the slide rail to release the cable redundancy. This effectively avoids cable stretching and breakage, joint detachment, or cable roller jamming caused by excessive tension, extends the cable service life, and ensures the continuity of power transmission. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the power distribution cabinet structure of the present invention; Figure 3 This is a schematic diagram of the insulating sleeve structure of the present invention; Figure 4 This is a schematic diagram of the cable retractor structure of the present invention; Figure 5 This is an enlarged view of point A in the present invention; Figure 6 This is a schematic diagram of the support plate structure of the present invention.

[0019] In the diagram: 1. Tram body; 2. Distribution cabinet; 3. Cable winding rack; 5. Storage box; 21. Main power inlet circuit breaker; 22. Branch power outlet circuit breaker; 23. Primary grounding copper busbar; 24. Secondary grounding copper busbar; 25. Insulating sleeve; 26. Outgoing cable; 31. Assembly base plate; 32. Slide rail; 33. Threaded screw; 34. Drive motor; 35. Cable roller; 36. Rotating shaft; 37. Rotary motor 38. Assembly base plate; 251. Insulating base pad; 252. Insulating disc; 253. Rubber ring; 254. Rubber pressure block; 351. Line roller outlet circuit breaker; 352. Power indicator light; 353. Line roller outlet socket; 381. Support plate; 382. Slide groove; 383. Movable base; 384. Limit rod; 385. Movable block; 386. Rack; 387. Half-tooth block; 388. Gear motor. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to embodiments: like Figures 1-6 As shown, the present invention has the following three specific embodiments.

[0021] Example 1 The present invention provides a multifunctional mobile emergency power distribution vehicle, including a vehicle body 1, a storage box 5 fixedly installed on the top right end of the vehicle body 1, a power distribution cabinet 2 fixedly installed on the left end of the inner cavity of the storage box 5, and a cable retractor 3 movably installed on the right end of the bottom of the inner cavity of the storage box 5. Also includes: The protective mechanism is installed inside the distribution cabinet 2 and is used to insulate and protect the power system. An adjustment mechanism is located at the bottom of the cable winding rack 3 and is used to adjust the position of the cable winding rack 3, which can be adjusted adaptively according to the length of the cable.

[0022] like Figure 1 As shown, the trolley body 1 adopts a four-wheel structure, with the front wheels being steering wheels and equipped with a steering wheel for steering. It has functions such as forward, reverse, braking, and steering, and can quickly travel to target locations such as power outage accident sites, temporary construction areas, and emergency rescue points. Through the on-board navigation and road condition adaptation system, it ensures flexible deployment in complex terrain and meets the "nearby emergency" requirement. The power distribution cabinet 2, as the core power processing unit, connects to an external power source through an input interface, adapting to multiple input types such as AC / DC and high voltage / low voltage, achieving "multi-source compatibility" and meeting the power supply needs of different emergency scenarios. The protective mechanism is built-in and monitors the insulation performance of key parts such as wiring, connectors, and switches inside the power distribution cabinet in real time. According to the power supply distance requirements, the operator can manually control or remotely control the drive component of the cable reel 3 to gradually release the high voltage / low voltage cables wound on the frame. The quick connectors at the ends of the cables can be connected to the load equipment or on-site junction boxes to achieve power transmission.

[0023] Example 2 The difference from Embodiment 1 is that this embodiment discloses a main power inlet circuit breaker 21 and an assembly base plate 31. The protective mechanism includes the main power inlet circuit breaker 21, which is located at the top of the inner wall of the distribution cabinet 2. A cable is fixedly connected to the top of the main power inlet circuit breaker 21, and an insulating sleeve 25 is fixedly sleeved at the other end of the cable. The outer side of the insulating sleeve 25 is fixedly installed at the bottom of the inner cavity of the distribution cabinet 2. A primary grounding copper busbar 23 is fixedly installed at the left end of the top of the inner wall of the distribution cabinet 2, and a primary grounding copper busbar 23 is fixedly installed at the right end of the top of the inner wall of the distribution cabinet 2. The distribution cabinet 2 is equipped with a secondary grounding copper busbar 24. A branch power supply outlet circuit breaker 22 is fixedly installed in the middle of the inner wall of the distribution cabinet 2. A branch power supply outlet circuit breaker 22 is fixedly connected to the bottom of the branch power supply outlet circuit breaker 22. An outlet cable 26 is fixedly connected to the bottom of the branch power supply outlet circuit breaker 22. The adjustment mechanism includes an assembly base plate 31. A threaded screw 33 is movably connected to the bottom of the assembly base plate 31. A drive motor 34 is fixedly connected to one end of the threaded screw 33. Slide rails 32 are fixedly installed at both ends of the bottom of the assembly base plate 31. The bottom of the slide rails 32 is fixedly installed at the bottom of the inner cavity of the storage box 5. A cable roller is movably installed inside the cable winding rack 3. The roller 35 has a rotating shaft 36 fixedly connected inside. A rotary motor 37 is fixedly connected to one end of the rotating shaft 36. A wire roller outlet circuit breaker 351 is fixedly installed on the side of the roller 35. A wire roller outlet socket 353 is fixedly installed on the left end of the side of the roller 35. A power indicator light 352 is fixedly installed on the right end of the side of the roller 35. A support frame 38 is fixedly connected to the front end of the roller 35. A support plate 381 is fixedly installed on the top of the support frame 38. A groove 382 is formed on the top of the support plate 381. The interior of the slot 382 has a movable base 383, and the top of the movable base 383 is fixedly installed with a limit rod 384. The interior of the support plate 381 has a movable block 385, and the top of the movable block 385 is fixedly installed at the bottom of the movable base 383. The upper and lower ends of the inner cavity of the movable block 385 are fixedly installed with racks 386, and the inner side of the racks 386 is meshed with half-tooth blocks 387. The interior of the half-tooth blocks 387 is fixedly connected with a gear motor 388. The main power supply circuit breaker 21 is a three-phase four-wire system, corresponding to phases A, B, and C and the ground wire respectively. The ground wire is connected to the secondary grounding copper busbar 24. The outer side of the storage box 5 has a three-sided door structure, which is used for the operation and maintenance of the power distribution cabinet 2 and the cable tray 3.

[0024] like Figure 2 , 4As shown in Figures 5 and 6, the main body 1 of the electric vehicle quickly travels to the emergency power supply site. The vehicle body is fixed by the vehicle-mounted stability system to prevent vibration from affecting the operation of the equipment during operation. The storage box 5 adopts a three-sided door structure. The operator can open the corresponding door according to the operation requirements to easily access the control components of the power distribution cabinet 2 and the operating area of ​​the cable tray 3, providing sufficient space for subsequent wiring, debugging and maintenance. The operator connects the external power supply to the input terminal of the main power supply circuit breaker 21 through the opening area of ​​the storage box. This circuit breaker is a three-phase four-wire system. The ground wire is directly and reliably connected to the secondary grounding copper busbar 24 to form a primary leakage protection circuit. Its primary grounding copper busbar 23 serves as the equipment grounding core and is reliably connected to the housing and internal metal parts of the power distribution cabinet 2 to conduct static electricity and fault leakage current of the equipment housing to the ground.The secondary grounding copper busbar 24 focuses on power line grounding, forming a double grounding network with the main power ground wire and branch cable ground wires, significantly reducing the risk of electric shock. The cable connected to the output end of the main power inlet circuit breaker 21 is fixed to the bottom of the inner cavity of the distribution cabinet 2 by an insulating sleeve 25. The insulating sleeve 25 isolates the cable from the metal structure of the cabinet, avoiding the risk of leakage caused by line wear, and at the same time fixes the cable position to prevent vibration from causing the joint to loosen. After closing the main power inlet circuit breaker 21, power enters the branch power outlet circuit breaker 22 in the middle of the distribution cabinet. This circuit breaker is divided into several branches according to the load demand, and the standardized power after uniform conversion is distributed to each outgoing cable 26. When an overload or short circuit occurs in a certain branch, In the event of a fault, the corresponding branch power supply circuit breaker 22 will automatically trip, cutting off the power supply to the faulty branch to avoid affecting the overall power supply system and achieving the protection effect of "branch isolation and no interference," thus complying with the safety regulations of "one machine, one switch, one protection." The operator connects the output cable 26 to the input end of the cable reel 3's roller 35, closes the roller output circuit breaker 351, and at this time, the power indicator light 352 lights up, indicating that the cable is connected to the power supply and output operations can be carried out. The rotary motor 37 is started, and its output end drives the rotating shaft 36 to rotate, thereby driving the roller 35 to rotate synchronously, slowly releasing the cable wound on the roller. The rotary motor 37 is started, and its output end drives the rotating shaft 36 to rotate. 6. Rotation drives the wire roller 35 to rotate synchronously, slowly releasing the cable wound on the roller. As the length of the cable increases, the tension of the cable on the wire roller 35 gradually increases. The controller receives the tension feedback signal and starts the drive motor 34 of the adjustment mechanism. The drive motor 34 drives the threaded screw 33 to rotate, which cooperates with the threaded structure at the bottom of the mounting base plate 31 to push the mounting base plate 31 to move smoothly along the slide rail 32 to the right end of the inner cavity of the storage box 5, releasing the cable redundancy and avoiding excessive tension that could cause the cable to stretch, the joint to fall off, or the wire roller to jam. During the cable release process, to prevent the cable from deviating from the roller surface of the wire roller 35 and causing entanglement, the gear motor 388 is started, and its output end drives the half-tooth block 387 to rotate. The half-tooth block 387 and the racks 386 at the upper and lower ends of the inner cavity of the moving block 385 alternately mesh, driving the moving block 385 to move horizontally along the support plate 381, thereby driving the top moving base 383 to slide in the slide groove 382, ​​and finally realizing the left and right position adjustment of the limit rod 384, limiting the cable within the preset winding and unwinding area, ensuring that the cable is unwinding in an orderly manner and without deviation. After the power supply is finished, the cable roller outlet circuit breaker 351 is disconnected, the power indicator light 352 goes out, and the rotary motor 37 is started to reverse, driving the cable roller 35 to rotate in the opposite direction to retract the cable. During operation, the power indicator light 352 on the side of the cable roller 35 can be monitored to provide real-time feedback on the cable power supply status. When it is lit, it is in normal power supply, and when it is off, it is in power failure.The on / off status of the main power inlet circuit breaker 21, the branch power outlet circuit breaker 22, and the cable roller outlet circuit breaker 351 is clearly visible, making it easy for operators to quickly determine whether the power circuit is normal. If a fault such as a short circuit, overload, or leakage occurs, the main power inlet circuit breaker 21 or the corresponding branch power outlet circuit breaker 22 will automatically trip to cut off the faulty circuit. If abnormal tension occurs during cable winding and unwinding, the adjustment mechanism will trigger the rotary motor 37 and the drive motor 34 to stop urgently, and at the same time send a feedback signal to the distribution cabinet to remind the operator to troubleshoot the fault. Example 3 The difference from Embodiment 2 is that this embodiment discloses an insulating sleeve 25 and an insulating disc 252. An insulating base pad 251 is fixedly installed at the bottom inside the insulating sleeve 25. The inside of the insulating base pad 251 is movably sleeved on the outside of the cable. An insulating disc 252 is fixedly installed at the top of the inner cavity of the insulating sleeve 25. A rubber pressure block 254 is fixedly installed on the inner side of the insulating disc 252. A rubber ring 253 is fixedly installed at the top of the inner cavity of the insulating disc 252.

[0025] like Figure 3 As shown, the cable connected to the output terminal of the main power supply circuit breaker 21 passes through the interior of the insulating sleeve 25, forming an isolation structure of "cable-insulation component-cabinet". The insulating base pad 251 at the bottom inside the insulating sleeve 25 is made of high-strength insulating material and is movably sleeved on the outside of the cable. On the one hand, it provides bottom support for the cable and avoids wear caused by direct hard contact between the cable and the sleeve; on the other hand, it isolates the cable from the conductive risk at the bottom of the sleeve through its own insulation properties, and at the same time buffers the impact of vehicle vibration on the cable joint to prevent the joint from loosening. The insulating disc 252 at the top of the inner cavity of the insulating sleeve 25 is a ring-shaped insulating structure, and its inner side is fixed. The rubber pressure block 254 has elastic deformation capability, closely fitting the outer wall of the cable. This not only centrally fixes the cable within the bushing, preventing cable swaying and friction damage to the inner wall of the bushing, but also further enhances the isolation effect of the line through the insulation property of the rubber. The rubber ring 253 at the top of the inner cavity of the insulating disc 252 tightly wraps the cable, forming a top sealing barrier that effectively prevents external dust and moisture from entering the bushing, preventing the cable insulation layer from aging due to moisture. At the same time, it buffers the axial tensile or compressive stress of the cable, protecting the integrity of the cable insulation layer. Structurally, it eliminates the risk of leakage caused by line wear and moisture, providing a fully enclosed insulation guarantee for the incoming cable.

[0026] The working principle of this multi-functional mobile emergency power distribution vehicle will be explained in detail below.

[0027] like Figures 1-6As shown, the main body 1 of the electric vehicle quickly travels to the emergency power supply site. The vehicle body is fixed by the vehicle-mounted stability system to prevent vibration from affecting the operation of the equipment during operation. The storage box 5 adopts a three-sided opening structure. The operator can open the corresponding door according to the operation requirements to easily access the control components of the power distribution cabinet 2 and the operating area of ​​the cable reel 3. This provides sufficient space for subsequent wiring, debugging and maintenance. The operator connects the external power supply to the input terminal of the main power supply circuit breaker 21 through the opening area of ​​the storage box. This circuit breaker is a three-phase four-wire system. The ground wire is directly and reliably connected to the secondary grounding copper busbar 24 to form a primary leakage protection circuit. Its primary grounding copper busbar 23 serves as the equipment grounding core and is reliably connected to the housing and internal metal parts of the power distribution cabinet 2 to conduct static electricity and fault leakage current of the equipment housing to the ground.The secondary grounding copper busbar 24 focuses on power line grounding, forming a double grounding network with the main power ground wire and branch cable ground wires, significantly reducing the risk of electric shock. The cable connected to the output end of the main power inlet circuit breaker 21 is fixed to the bottom of the inner cavity of the distribution cabinet 2 by an insulating sleeve 25. The insulating sleeve 25 isolates the cable from the metal structure of the cabinet, avoiding the risk of leakage caused by line wear, and at the same time fixes the cable position to prevent vibration from causing the joint to loosen. After closing the main power inlet circuit breaker 21, power enters the branch power outlet circuit breaker 22 in the middle of the distribution cabinet. This circuit breaker is divided into several branches according to the load requirements, and the unified converted standard The power supply is distributed to each outgoing cable 26. When an overload or short circuit occurs in a branch, the corresponding branch power supply circuit breaker 22 will automatically trip, cutting off the power to the faulty branch to avoid affecting the overall power supply system. This achieves the protection effect of "branch isolation and no interference," thus complying with the safety regulations of "one machine, one switch, one protection." The operator connects the outgoing cable 26 to the input end of the cable reel 3's roller 35 and closes the roller's outgoing circuit breaker 351. At this time, the power indicator light 352 lights up, indicating that the cable is connected to the power supply and can be used for output operations. The rotary motor 37 is started, and its output end drives the rotation. The shaft 36 rotates, which in turn drives the wire roller 35 to rotate synchronously, slowly releasing the cable wound on the roller body. The rotary motor 37 is started, and its output end drives the rotary shaft 36 to rotate, which in turn drives the wire roller 35 to rotate synchronously, slowly releasing the cable wound on the roller body. As the length of the cable released increases, the tension of the cable on the wire roller 35 gradually increases. The controller receives the tension feedback signal and starts the drive motor 34 of the adjustment mechanism. The drive motor 34 drives the threaded screw 33 to rotate, which cooperates with the threaded structure at the bottom of the mounting base plate 31, pushing the mounting base plate 31 to move smoothly along the slide rail 32 towards the right end of the inner cavity of the storage box 5. To release cable redundancy and prevent excessive tension from causing cable stretching, connector detachment, or jamming of the cable rollers, during the cable unwinding process, to prevent the cable from deviating from the surface of the cable roller 35 and becoming entangled, the gear motor 388 is activated. Its output end drives the half-tooth block 387 to rotate. The half-tooth block 387 alternately meshes with the racks 386 at the upper and lower ends of the inner cavity of the moving block 385, driving the moving block 385 to move horizontally along the support plate 381, thereby driving the top moving base 383 to slide within the slide groove 382. Finally, the left and right positions of the limit rod 384 are adjusted, confining the cable within the preset unwinding and rewinding area to ensure orderly and non-deviationive cable unwinding.

[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A multifunctional mobile emergency power distribution vehicle comprising a vehicle body (1), characterized in that: The top of the right end of the electric car body (1) is fixedly provided with a storage box (5), the left end of the inner cavity of the storage box (5) is fixedly provided with a power distribution cabinet (2), and the right end of the bottom of the inner cavity of the storage box (5) is movably provided with a cable reel (3). Also includes: The protection mechanism is arranged in the power distribution cabinet (2), which is used for insulation protection of the power system; The adjusting mechanism is arranged at the bottom of the cable reel (3), which is used for position adjustment of the cable reel (3) and self-adaptive adjustment according to the length of the pay-off.

2. The multi-functional mobile emergency power distribution vehicle of claim 1, wherein: The protection mechanism includes a total power supply incoming line air switch (21), which is arranged on the top of the inner wall of the power distribution cabinet (2), the top of the total power supply incoming line air switch (21) is fixedly connected with a cable, the other end of the cable is fixedly sleeved with an insulating sleeve (25), the outer side of the insulating sleeve (25) is fixedly installed at the bottom of the inner cavity of the power distribution cabinet (2), the left end of the top of the inner wall of the power distribution cabinet (2) is fixedly installed with a primary grounding copper bar (23), the right end of the top of the inner wall of the power distribution cabinet (2) is fixedly installed with a secondary grounding copper bar (24), the middle of the inner wall of the power distribution cabinet (2) is fixedly installed with a branch power supply outgoing line air switch (22), and the bottom of the branch power supply outgoing line air switch (22) is fixedly connected with an outgoing cable (26).

3. The multi-functional mobile emergency power distribution vehicle of claim 2, wherein: The bottom of the inner cavity of the insulating sleeve (25) is fixedly installed with an insulating bottom pad (251), the inner side of the insulating bottom pad (251) is movably sleeved on the outer side of the cable, the top of the inner cavity of the insulating sleeve (25) is fixedly installed with an insulating disc (252), the inner side of the insulating disc (252) is fixedly installed with a rubber pressing block (254), and the top of the inner cavity of the insulating disc (252) is fixedly installed with a rubber ring (253).

4. The multi-functional mobile emergency power distribution vehicle of claim 1, wherein: The adjusting mechanism includes an assembly bottom plate (31), the bottom of the assembly bottom plate (31) is movably connected with a threaded lead screw (33), one end of the threaded lead screw (33) is fixedly connected with a driving motor (34), both ends of the bottom of the assembly bottom plate (31) are fixedly installed with slide rails (32), and the bottom of the slide rail (32) is fixedly installed at the bottom of the inner cavity of the storage box (5).

5. The multi-functional mobile emergency power distribution vehicle of claim 1, wherein: The inner cavity of the cable reel (3) is movably provided with a wire roller (35), the inner side of the wire roller (35) is fixedly connected with a rotating shaft (36), and one end of the rotating shaft (36) is fixedly connected with a rotating motor (37).

6. The multi-functional mobile emergency power distribution vehicle of claim 5, wherein: The side of the wire roller (35) is fixedly provided with a wire roller outgoing line air switch (351), the left end of the side of the wire roller (35) is fixedly provided with a wire roller outgoing line socket (353), and the right end of the side of the wire roller (35) is fixedly provided with a power supply indicating lamp (352).

7. The multi-functional mobile emergency power distribution vehicle of claim 5, wherein: The front end of the wire roller (35) is fixedly connected with a support frame (38), the top of the support frame (38) is fixedly provided with a support plate (381), the top of the support plate (381) is provided with a sliding groove (382), the inner side of the sliding groove (382) movably has a movable base (383), and the top of the movable base (383) is fixedly provided with a limiting rod (384).

8. The multi-functional mobile emergency power distribution vehicle of claim 7, wherein: The inside of the support plate (381) movably installs a moving block (385), the top of the moving block (385) is fixedly installed at the bottom of a moving base (383), the upper and lower ends of the inner cavity of the moving block (385) are fixedly installed with a rack (386), the inner side of the rack (386) is meshed with a half tooth block (387), and the inside of the half tooth block (387) is fixedly connected with a gear motor (388).

9. The multi-functional mobile emergency power distribution vehicle of claim 1, wherein: The total power supply line air switch (21) is a three-phase four-wire system, corresponding to A, B, C phase lines and a ground wire respectively, and the ground wire is connected with a secondary grounding copper bar (24).

10. The multi-functional mobile emergency power distribution vehicle of claim 1, wherein: The outside of the storage box (5) is a three-side door structure, which is used for the operation and maintenance of the power distribution cabinet (2) and the cable winding and unwinding frame (3).

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