Power distribution box moving pedestal with waterproof function

Abstract

The invention provides a distribution box mobile pedestal with a waterproof function, particularly relates to the technical field of tunnel construction electrical equipment, and aims to solve the technical problems in the prior art. The device comprises a frame, and a mobile stabilization module, a leveling stabilization module, a distribution box fixing module, a waterproof protection module, an anti-collision module and a state monitoring module which are integrated on the frame. Through collaborative design of the five modules, the device solves the core pain point of an existing pedestal at the exit end of the tunnel, and has the advantages of being stable in movement, accurate in level, reliable in waterproof performance, comprehensive in collision prevention, intelligent and controllable.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology for tunnel construction, and more specifically, to a waterproof mobile base for a distribution box. Background Technology

[0002] As a critical area for construction coordination, the tunnel exit requires frequent adjustments to the location of the distribution box to ensure temporary power supply as excavation progresses. As a core power supply device, the distribution box's mobile platform must simultaneously meet four core requirements: mobility, stability, waterproofing, and impact resistance. However, existing mobile platforms for tunnel distribution boxes generally suffer from the following technical deficiencies, making them unsuitable for the complex environment at the tunnel exit.

[0003] Existing pedestals mostly use ordinary angle steel welded together to form a simple frame, without a special structure designed for tunnel dripping water and silt erosion environment, making them prone to water ingress.

[0004] In addition, existing pedestals mostly rely on manual pushing, and the total weight of the distribution box and pedestal at the tunnel exit often reaches several hundred kilograms. If there is a reverse slope or pile of gravel on the ground, multiple people are needed to push it together, and the pedestal is prone to shifting due to uneven force, colliding with the tunnel side ditch or buried pipelines. Secondly, the existing vibration resistance and braking reliability are insufficient, and there is a lack of suspension and shock absorption structure. When crushing gravel, the vibration is directly transmitted to the distribution box, which can easily cause the internal components to loosen. The braking system is mostly equipped with a single mechanical wheel lock. When parking on the slope of the tunnel, the wheel lock is prone to slippage due to wear. Although some platforms have been equipped with electric drive, they are not linked with the braking system, so they cannot stop quickly in an emergency. Summary of the Invention

[0005] The purpose of this invention is to provide a waterproof distribution box mobile platform, which can solve the technical problems existing in the prior art.

[0006] The embodiments of the present invention are achieved through the following technical solutions: A waterproof distribution box mobile platform includes a frame and integrated on the frame a mobile stabilization module, a leveling stabilization module, a distribution box fixing module, a waterproof protection module, an anti-collision module, and a status monitoring module. The frame is a welded steel load-bearing structure with a composite anti-corrosion layer on its outer surface, and various installation positions and connection structures are reserved. The mobile stabilization module is located at the bottom of the frame to achieve stable movement and parking of the platform. The leveling stabilization module connects the mobile stabilization module and the distribution box fixing module for platform level calibration and tilt monitoring. The distribution box fixing module is located on the upper layer of the frame to fix the distribution box and achieve sealed cable management. The waterproof protection module covers the distribution box fixing module and the top and sides of the frame to prevent tunnel water inflow and seepage. The anti-collision module is deployed on the outer perimeter and top of the frame to identify obstacles and provide collision protection. The status monitoring module is located on the side of the frame to monitor the platform's operating parameters in real time. The modules work together through mechanical or electrical connections and are arranged in layers along the height of the frame.

[0007] In some embodiments, the frame is a rectangular structure, including a grid-like bearing surface formed by the main load-bearing beams and secondary beams; the composite anti-corrosion layer is a multi-layer structure, including at least a base anti-corrosion layer and a surface protective layer.

[0008] In some embodiments, the mobile stabilization module includes: omnidirectional wheels connected to the frame via a suspension bracket that adapts to uneven ground, with a stone-blocking structure on the outer side of the wheel assembly; an electric drive mechanism connected to the omnidirectional wheels and equipped with a wireless control device; a braking system including an electromagnetic braking unit and a mechanical locking unit linked to the omnidirectional wheels; retractable spiral outriggers located on both sides of the bottom of the frame, with an anti-slip support structure at the bottom end; and a shock-absorbing structure located between the wheel assembly and the frame, and between the drive mechanism and the frame.

[0009] In some embodiments, the leveling and stabilization module includes: a leveling drive unit distributed along the circumference of the frame, which achieves level calibration of the platform through telescopic adjustment; a level monitoring unit for detecting the longitudinal and lateral levelness of the platform; a tilt warning unit linked with the level monitoring unit, which triggers a warning when the tilt exceeds a threshold; and a dynamic balance monitoring unit for monitoring the tilt state during movement and feeding it back to the control module.

[0010] In some embodiments, the distribution box fixing module includes: a limiting fixing structure arranged around the outer periphery of the distribution box, with a buffer component on the inner side; a cable interface unit, which is an embedded structure, with a sealing component and an elastic dust cover at the interface; a cable tray arranged along the length of the frame, with an openable cover plate on the top, and a cable separation structure inside the tray; and a counterweight adjustment structure, which is detachably located on one side of the frame, opposite to the cable interface unit, and the weight can be adjusted by adding or removing unit blocks.

[0011] In some embodiments, the waterproof protection module includes: a rainproof canopy, which is detachably covered above the distribution box and connected to the frame by buckles, with a water-blocking structure at the edge; a water collection structure, which is arranged circumferentially along the bottom of the frame to collect seepage water; a drainage unit, which is connected to the water collection structure and can drain accumulated water; and a water level monitoring unit, which is linked to the drainage unit and triggers drainage when the water level exceeds a threshold.

[0012] In some embodiments, the anti-collision module includes: a sensing and identification unit, arranged along the outer perimeter and top of the frame, for detecting different types of obstacles; a control unit, integrating sensor data and linked with the motion stabilization module and the early warning system; an early warning system, which triggers different early warning modes according to the distance to the obstacle; a protective structure, covering the exposed corners and collision-prone areas of the frame, including elastic anti-collision components and retractable protective components; and a path guiding unit, located at the top of the frame, for guiding the platform to move along a reference path.

[0013] In some embodiments, the status monitoring module includes: a sensor assembly for detecting parameters such as temperature and humidity, grounding resistance, and levelness; and a display unit embedded in the side of the frame for displaying parameters in real time and triggering an early warning when parameters exceed the limits.

[0014] In some embodiments, the frame is provided with a grounding terminal on its side, which is connected to the tunnel grounding grid through a conductive connector, and the connection between the connector and the terminal is provided with an anti-corrosion treatment structure.

[0015] In some embodiments, a flexible coupling is provided between the drive mechanism and the wheel assembly, and a damping buffer component is provided between the power distribution box fixing module and the frame.

[0016] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects: 1. This device, through the coordinated design of five major modules, solves the core pain point of existing platforms at the tunnel exit end, and has the advantages of stable movement, precise leveling, reliable waterproofing, comprehensive impact protection, and intelligent controllability. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A side view of a waterproof distribution box mobile platform provided in an embodiment of the present invention; Figure 2This is a bottom view of a waterproof distribution box mobile platform provided in an embodiment of the present invention; Figure 3 This is a cross-sectional view of the internal structure of the frame provided in an embodiment of the present invention; Figure 4 This is a top view of the wiring trough provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the internal structure of the mounting groove provided in an embodiment of the present invention; Figure 6 This is a top view of the water collection tank provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the L-shaped steel plate provided in an embodiment of the present invention.

[0019] Icons: 1. Frame; 2. Casters; 3. Suspension bracket; 4. Stone retainer; 5. Motor; 6. Gearbox; 7. Electromagnetic brake unit; 8. Helical support leg; 9. Anti-slip steel plate; 10. Wheel set bracket; 11. Leveling motor; 12. Flexible coupling; 13. Leveling screw; 14. Universal ball; 15. Ball socket; 16. Screw seat; 17. Level; 18. Audible and visual alarm; 19. Three-axis gyroscope sensor; 20. L-shaped steel plate; 21. Mounting plate; 22. Distribution box; 23. Interface box; 24. Flexible flap; 25. Cable tray; 26. Divider plate; 27. Unit block; 28. Mounting slot 29. Waterproof canopy; 30. Buckle block; 31. Buckle seat; 32. Flanged edge; 33. Water collection tank; 34. Drain pump; 35. Drain pipe; 36. Liquid level sensor; 37. Ultrasonic sensor; 38. Millimeter wave radar; 39. Laser profilometer; 40. Human infrared sensor; 41. Waterproof control box; 42. Warning light; 43. Buzzer; 44. Anti-collision block; 45. Protective curtain; 46. Red laser guide; 47. Temperature and humidity sensor; 48. Grounding resistance sensor; 49. Grounding terminal; 50. Level sensor; 51. Display unit; 52. Crimping terminal; 53. Braided strap. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0024] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] Please see Figures 1-7 As shown, the main body of this embodiment is a waterproof distribution box 22 mobile platform. A rectangular frame 1 serves as the core load-bearing structure. Along the frame 1 are integrated a mobile stabilization module, a leveling stabilization module, and a distribution box fixing module. Waterproof protection modules and anti-collision modules are respectively installed on the top and outer perimeter of the frame 1. A status monitoring module is also added to achieve full parameter monitoring. The modules form a collaborative system through mechanical or electrical connections. Their specific spatial distribution on the frame 1 is as follows: Furthermore, the frame 1 is made of Q235B steel and is a rectangular structure, which is adapted to the size of the tunnel distribution box 22 and covers the outer perimeter of the distribution box 22. The outer surface of the frame 1 is provided with a composite anti-corrosion layer, which is a three-layer structure. The bottom layer is a hot-dip galvanized layer for basic anti-corrosion; the middle layer is an epoxy zinc-rich paint layer to enhance the adhesion of the surface; and the top layer is a polyurea coating to resist tunnel mud and sand erosion and moisture corrosion.

[0026] The frame 1 has a reserved sensor mounting hole, a grounding terminal 49 mounting position, and a cable interface embedded groove on its side. The bottom is welded with a universal wheel 2 bracket seat and a spiral leg 8 mounting seat.

[0027] Furthermore, the mobile stabilization module is located at the bottom of the frame 1 and is in direct contact with the tunnel ground. Its core function is to realize the smooth movement and reliable parking of the platform. It includes four sets of casters 2, which are distributed at the four corners of the bottom of the frame 1. Each set of casters 2 is connected to the support base at the bottom of the frame 1 through an independent suspension bracket 3.

[0028] The suspended support 3 includes a vertical telescopic rod and a shock-absorbing spring sleeved on the outside of the telescopic rod. The top of the telescopic rod is connected to the support base, and the bottom is welded to the wheel set support 10 to ensure that the wheel set can adapt to the unevenness of the tunnel ground. In addition, the outer side of the caster wheel 2 is provided with a stainless steel stone-blocking plate 4. One end of the stone-blocking plate 4 is welded and fixed to the bottom of the frame 1, and the other end extends outward of the wheel assembly. This can prevent gravel in the tunnel from being rolled into the wheel axle and the support, thus avoiding wheel assembly jamming. The wheel assembly uses heavy-duty caster wheels 2, which can accommodate the total weight of the electrical box 22 and the platform. The tires of the caster wheels 2 are made of polyurethane anti-slip material, thereby enhancing the friction with the wet or gravel ground of the tunnel.

[0029] Furthermore, the electric drive mechanism employs two DC drive motors 5, arranged diagonally along the frame 1, and driving the casters 2 at corresponding diagonal positions of the frame 1. The motors 5 are fixed to the motor bracket below the frame 1 by bolts. The output shaft of the motor 5 is connected to the shaft of the caster 2 via a gearbox 6, realizing the transmission of power from the motor 5 to the wheel assembly. A handheld wireless controller is also configured, which is connected to the motor 5 controller via Bluetooth, and can adjust the speed and forward / reverse rotation of the motor 5, while also integrating an emergency stop button.

[0030] Each set of omnidirectional wheels 2 corresponds to one set of electromagnetic braking unit 7 and one set of mechanical locking unit: the electromagnetic braking unit 7 is integrated into the end of the wheel axle, and its brake pads are controlled to engage or disengage from the wheel axle by an electrical signal; the mechanical locking unit is a pedal-type wheel lock that comes with the omnidirectional wheel 2, and the wheel set can be locked by stepping on the pedal; In addition, the braking system is linked with the wireless controller: when the "emergency stop" button of the controller is pressed, the electromagnetic braking unit 7 is immediately energized to lock the wheel axle, and at the same time the mechanical locking unit can be manually triggered to achieve dual braking and prevent the platform from sliding on the tunnel slope.

[0031] Two sets of spiral legs 8 are symmetrically arranged on both sides of the bottom of the frame 1, and their top ends are threadedly connected to the leg mounting seats at the bottom of the frame 1. Anti-slip steel plates 9 are welded to the bottom of the legs. The size of the anti-slip steel plates 9 is larger than the cross-section of the legs to increase the contact area with the ground. Triangular anti-slip teeth are welded to the bottom of the anti-slip steel plates 9, so that they can be embedded in the soft ground of the tunnel to enhance stability.

[0032] In addition to the shock-absorbing springs of the suspension bracket 3, rubber shock-absorbing pads are placed between the motor 5 and the frame 1 to reduce the vibration transmission when the motor 5 is running.

[0033] Furthermore, the leveling and stabilizing module is located between the top of the mobile stabilizing module and the bottom of the distribution box fixing module. Its core function is to adapt to uneven ground in the tunnel and maintain the platform's level. It includes a leveling drive unit comprising four sets of electric leveling motors 11 with reduction gears. These electric leveling motors 11 are evenly distributed around the circumference of the frame 1 and positioned near the four corners. The bottom of each electric leveling motor 11 is bolted to the top of the suspension bracket 3 of the mobile stabilizing module, with its output shaft facing upwards and rigidly connected to the leveling screw 13. The leveling screw 13 is threadedly connected to a universal ball joint 14 on the bottom screw seat 16 of the distribution box fixing module. The universal ball joint 14 is movably installed in a ball socket 15 with openings at the top and bottom, and the ball socket 15 is fixedly installed on the screw seat 16. By driving the screw with the electric leveling motors 11, the height of the corresponding position of the distribution box fixing module is adjusted, and the platform's level is calibrated through the movable connection between the universal ball joint 14 and the ball socket 15.

[0034] The leveling and stabilization module also includes a level monitoring unit, which uses a digital dual-axis level 17, embedded in the middle of the side of the frame 1 for easy observation by construction personnel. The level 17 is fixed to the level 17 bracket of the frame 1 by bolts, and its detection directions correspond to the longitudinal and transverse directions of the platform respectively. The level 17 is electrically connected to the control unit through wires, and feeds back the levelness data to the controller in real time, providing a basis for leveling drive.

[0035] In addition, the leveling and stabilization module also includes a tilt warning unit, which includes an audible and visual alarm 18, which is fixed to the side of the frame 1 near the leveling motor 11 by bolts. The alarm is electrically connected to the level monitoring unit. When the tilt of the platform exceeds the preset threshold, the alarm triggers an audible and visual warning to remind the construction personnel to stop moving and perform leveling.

[0036] In addition, the leveling and stabilization module also includes a dynamic balance monitoring unit, which uses a three-axis gyroscope sensor 19. The sensor is fixed to the center of gravity in the middle of the frame 1 by a bracket. The three-axis gyroscope sensor 19 is electrically connected to the control unit through wires. During the movement, the three-axis gyroscope sensor 19 monitors the tilt state of the platform in real time, such as instantaneous tilt caused by crushing gravel, and feeds the data back to the control unit. If tilt occurs, the control unit triggers the electric drive mechanism to reduce speed to avoid the tilt from worsening, and at the same time feeds back to the leveling drive unit to prepare for subsequent leveling.

[0037] Furthermore, the distribution box fixing module is located below the frame 1, directly supporting the frame. Its core functions are secure fixing and cable sealing. Specifically, it includes a limiting fixing structure, which uses multiple L-shaped steel plates 20 arranged around the outer perimeter of the frame 1. The vertical section height of the L-shaped steel plates 20 is adapted to the height of the frame 1. The bottom of the horizontal section of the L-shaped steel plates 20 is fixed to the same mounting plate 21 by bolts. The bottom plate of the frame 1 is located below the mounting plate. An oil-resistant rubber pad, i.e., a damping buffer component, is attached to the inner side of the L-shaped steel plates 20. The rubber pad fits against the outer wall of the frame 1, which enhances the fixing friction and buffers vibration. Stainless steel anti-loosening bolts are configured, which penetrate the horizontal section of the L-shaped steel plates 20 and are threadedly connected to the fixing holes at the bottom of the frame 1. It is worth mentioning that the screw seat 16 is located on the side plate outside the horizontal section of the L-shaped steel plates 20, and the distribution box 22 is fixedly installed inside the frame 1.

[0038] In addition, the distribution box fixing module also includes a cable interface unit, which is located on one side of the frame 1 and adopts an embedded interface box 23 to avoid the interface protruding and causing scratches. The interface box 23 is fixed to the interface bracket of the frame 1 by bolts. The interface box 23 integrates an IP68-level quick-connect waterproof connector with a built-in nitrile rubber sealing ring. The interface box 23 has an elastic dust cover at the opening. The elastic dust cover includes elastic flaps 24 arranged around the interface of the interface box 23. After the cable is connected, the elastic flaps 24 automatically fit against the outer wall of the cable to prevent dust or water from entering the interface.

[0039] In addition, the distribution box fixing module also includes a cable tray 25, which is arranged along the length of the frame 1 on the side of the distribution box fixing module near the interface box 23. The cable tray 25 is a PC material tray with an IP65 waterproof rating and is fixed to the frame 1 by bolts. The top of the cable tray 25 is provided with a flip-top transparent cover plate for easy observation of the cable status inside the tray. The cover plate is connected to the tray body by a buckle and can be opened at an angle of ≤90° for quick cable inspection. The tray body is provided with a cable separator plate 26 to separate power cables and signal cables to prevent cable tangling.

[0040] In addition, the distribution box fixing module also includes a counterweight adjustment structure, which is made of cast iron and includes multiple overlapping unit blocks 27. The unit blocks 27 are adapted to the installation space on the side of the pedestal and are hot-dip galvanized for rust prevention. The top and bottom of the unit blocks 27 are respectively provided with mutually cooperating concave and convex positioning grooves. The side of the pedestal frame 1, that is, the side opposite to the cable interface unit, is welded with a mounting groove 28. The assembled unit blocks 27 are placed in the mounting groove 28 and limited by the side wall of the mounting groove 28. In use, the number of unit blocks 27 can be increased or decreased as needed to achieve continuous weight adjustment. Its weight is adapted to the cable dragging force and can be detachably fixed to the other side of the frame 1, that is, the relative position with the interface box 23. The setting of the counterweight blocks can offset the unilateral pulling force when the cable is connected, prevent the pedestal from shifting to the side of the interface box 23 due to cable dragging, and ensure the overall balance of the pedestal.

[0041] Furthermore, the waterproof protection module covers the top and sides of the distribution box fixing module and frame 1. Its core function is to block water inflow and seepage in the tunnel. Specifically, it includes a rain shelter made of FRP fiberglass with an overall arc-shaped structure. The coverage area extends beyond a certain range around the distribution box 22 to prevent rainwater from seeping in from the edges. The rain shelter is connected to the buckle seat 31 on the top of the frame 1 via buckle blocks 30. The buckle seat 31 is a slot welded to the four corners of the top of the frame 1. The buckle blocks 30 can be inserted into the slots for quick disassembly, facilitating the maintenance of the distribution box 22. The edges of the rain shelter are provided with downward-facing flanges 32 to further block side splashes.

[0042] In addition, the waterproof protection module also includes a water collection structure, which is a water collection trough 33 welded circumferentially along the bottom inner side of the frame 1 to collect seepage water from the top and sides of the pedestal.

[0043] In addition, the waterproof protection module also includes a drainage unit, which includes two drainage pumps 34 and a set of drainage pipes 35: the drainage pumps 34 are fixed to the side of the water collection tank 33 by bolts, the water inlet of the drainage pumps 34 is connected to the bottom of the water collection tank 33 through a hose, and its water outlet is connected to the drainage pipes 35.

[0044] In addition, the waterproof protection module also includes a water level monitoring unit, which uses a liquid level sensor 36 and is fixed inside the water collection tank 33 by a bracket. The sensor is electrically connected to the drain pump 34 controller through a wire. When the water level in the water collection tank 33 exceeds the preset value, the sensor triggers the drain pump 34 to start automatically. The pump stops automatically when the water level drops to a safe value, thus realizing automatic drainage.

[0045] Furthermore, the anti-collision module is deployed on the outer perimeter and top of the frame 1. Its core function is to identify obstacles within the tunnel and provide collision protection. Specifically, it includes a sensing and identification unit, which comprises: Four ultrasonic sensors 37 are fixed to the front, back, left, and right sides of the frame 1, respectively. The sensors are welded to the frame 1 through brackets, and the detection direction is perpendicular to the side of the frame 1. They are used to detect fixed obstacles. Two millimeter-wave radars 38 are fixed to the front and rear ends of the frame 1 respectively. The radars are fixed to the radar bracket of the frame 1 by bolts. The detection direction is consistent with the movement direction of the pedestal and is used to track dynamic obstacles. Laser profilometer 39: There are two laser profilometers 39, which are fixed on both sides of the bottom of the frame 1 near the casters 2. The detection direction is parallel to the ground and downwards, and they are used to identify low obstacles on the tunnel floor. Human infrared sensor 40: There are two human infrared sensors 40, which are fixed at the front and rear ends of the frame 1. The detection direction covers both sides of the moving path of the platform and is used to detect construction personnel entering the moving range.

[0046] Control Unit: The control unit is a central control unit, namely CCU, which is integrated into a waterproof control box 41 within the frame 1. The control box is fixed in a recessed area on the side of the frame 1. The CCU is electrically connected to various sensors, electric drive mechanisms, braking systems, and early warning systems via wires, and is also connected to the existing construction machinery scheduling system in the tunnel via a wireless module. The CCU has a built-in data fusion algorithm that can integrate data from various sensors, determine the type, distance, and risk level of obstacles, and trigger corresponding control commands, such as deceleration, braking, and early warning.

[0047] Warning system: includes 4 warning lights 42, which are red / yellow dual-color, and 2 buzzers 43: the warning lights 42 are fixed at the four corners of the frame 1 respectively; the buzzers 43 are fixed at the front and rear ends of the frame 1, and their volume is ≥90dB, which can penetrate the noise environment inside the tunnel; The early warning system's warning method triggers warnings in stages based on obstacle distance: 1. When the distance is greater than or equal to the safe distance, it is a Level 1 warning: the yellow warning light flashes at 42 to remind construction personnel to pay attention; 2. When the safe distance is greater than or equal to the dangerous distance, a level two warning is issued: the yellow warning light 42 and the buzzer 43 are linked, and the CCU triggers the electric drive mechanism to reduce speed; 3. When the distance is less than the danger distance, a level three warning will be issued: the red warning light will flash 42 and the buzzer will sound continuously 43, triggering the CCU to activate the braking system for emergency stop.

[0048] In addition, the anti-collision module also includes a protective structure, which includes eight anti-collision blocks 44, covering the top four corners and bottom four corners of the frame 1 respectively. The anti-collision blocks 44 are made of EVA foam rubber with a curved transition surface. It also includes two retractable protective curtains 45, which are respectively located on the left and right sides of the frame 1. The protective curtains 45 are made of high-elasticity polyurethane material. The top of the curtains is hinged to the side of the frame 1, and the bottom is attached to the bottom of the frame 1 by magnetic suction cups. When lowered, the protective curtains 45 can buffer the side scraping force, and when retracted, they do not affect movement.

[0049] In addition, the anti-collision module also includes a path guidance unit, which uses a red laser guide 46 and is fixed to the top center of the frame 1 by bolts. The laser range covers the length of the moving path inside the tunnel. Before construction, a baseline guide line is set up inside the tunnel, such as by attaching reflective strips along the edge of the side ditch. The laser guide emits a spot that is aligned with the baseline. Construction workers use the controller to fine-tune the movement direction to ensure that the path is straight and avoid collisions caused by deviation.

[0050] It is worth mentioning that the millimeter-wave radar 38 is connected to the existing construction machinery dispatching system in the tunnel via the CCU: when dynamic construction machinery is detected approaching the platform, the CCU not only triggers the platform's own early warning system, but also sends an obstacle avoidance reminder to the vehicle-mounted display screen in the machinery's cab, achieving two-way early warning and reducing the probability of collision.

[0051] Furthermore, the status monitoring module is fixed to the recessed area on the side of the frame 1. Its core function is to monitor the operating parameters of the platform in real time. Specifically, it includes sensor components: temperature and humidity sensor 47: fixed on the inner side of the frame 1 near the distribution box 22, used to detect the internal temperature and humidity of the platform; grounding resistance sensor 48: connected to the grounding terminal 49 on the side of the frame 1, used to detect the grounding resistance of the platform to ensure electrical safety; and levelness sensor 50: linked with the level monitoring unit of the leveling and stabilization module to provide real-time feedback on the levelness of the platform.

[0052] In addition, the status monitoring module includes a display unit 51, which is a waterproof touch screen embedded in the recessed area on the side of the frame 1 to avoid protrusion and scratches. The screen is electrically connected to each sensor and CCU through wires. The screen displays parameters such as temperature and humidity, grounding resistance, levelness, and water level in real time. When the parameters exceed the standard, a red warning pop-up window will pop up and trigger an audio-visual reminder in conjunction with the warning system.

[0053] Furthermore, a double-bolt brass grounding terminal 49 is welded to the side of frame 1 near the bottom. The terminal surface is tin-plated to enhance conductivity. A copper braided strip 53 is used as a conductive connector. One end of the braided strip 53 is fixed to the grounding terminal 49 through a crimp terminal 52, and the other end is crimped and fixed to the existing grounding grid of the tunnel. Conductive anti-corrosion grease is applied to the crimping point to ensure that the grounding resistance is ≤4Ω, which meets the safety requirements for temporary power supply in the tunnel.

[0054] It is worth mentioning that the flexible coupling 12 between the electric drive mechanism and the wheel set can absorb the inertia of bumps; a damping rubber pad is laid between the distribution box fixing module and the top of the frame 1 to further buffer the vibration during movement and prevent the internal components of the distribution box 22 from becoming loose.

[0055] This invention can be directly adapted to similar scenarios such as tunnel exits, and the module details can be adjusted according to the size and geological conditions of different tunnels, making it highly versatile and practical.

[0056] It is worth mentioning that conventional platforms often have no choice but to passively wait for drainage when encountering sudden water inrush, and may even have to stop work due to water immersion in the electrical distribution box 22. However, in this solution, if a sudden local water inrush occurs in the tunnel during the movement, the water level monitoring unit of the waterproof protection module will trigger an early warning 10 to 15 seconds in advance, and at the same time automatically start the drainage pump 34. The laser profilometer 39 of the anti-collision module will identify the water accumulation area, and the CCU will link with the movement stabilization module to control the platform to move automatically to a higher terrain area to avoid prolonged immersion. After moving into position, the spiral support leg 8 will quickly lower and press against the ground, and work with the water collection tank 33 to continuously drain water, achieving dual protection of active risk avoidance and real-time drainage, reducing power outages caused by water inrush.

[0057] In addition, the risk of collision between construction machinery and the 22 electrical distribution boxes inside the tunnel is a concern. Conventional boxes rely solely on manual observation and early warning, which can easily lead to accidents. However, in this solution, the millimeter-wave radar 38 of the anti-collision module can not only trigger the early warning of the box itself, but also send obstacle avoidance reminders to the machine cab through the tunnel construction machinery dispatching system.

[0058] In addition, there is often a temporary slope of less than 5° at the tunnel exit, such as the reverse slope drainage section. If the conventional platform fails to brake, it is easy to slide along the slope, causing the distribution box 22 to tip over. In this solution, the dynamic balance monitoring unit will monitor the platform tilt trend in real time. If the slope causes slight sliding, the CCU will automatically fine-tune the speed of the motors 5 on both sides and prevent the sliding through differential torque to avoid the expansion of instability and effectively avoid the potential sliding risk of the sloping ground.

[0059] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A waterproof distribution box mobile platform, characterized in that, The system includes a frame and integrated on it a mobile stabilization module, a leveling stabilization module, a power distribution box fixing module, a waterproof protection module, an anti-collision module, and a status monitoring module. The frame is a welded steel load-bearing structure with a composite anti-corrosion layer on its outer surface, and is equipped with various installation positions and connection structures. The mobile stabilization module is located at the bottom of the frame and is used to achieve stable movement and parking of the platform. The leveling stabilization module connects the mobile stabilization module and the power distribution box fixing module and is used for platform level calibration and tilt monitoring. The power distribution box fixing module is located on the upper layer of the frame and is used to fix the power distribution box and achieve sealed cable management. The waterproof protection module covers the power distribution box fixing module and the top and sides of the frame to prevent tunnel water inflow and seepage. The anti-collision module is deployed on the outer perimeter and top of the frame to identify obstacles and provide collision protection. The status monitoring module is located on the side of the frame and is used to monitor the platform's operating parameters in real time. The modules work together through mechanical or electrical connections and are deployed in layers along the height of the frame.

2. The waterproof distribution box mobile platform according to claim 1, characterized in that, The frame is a rectangular structure, including a grid-like bearing surface formed by the main load-bearing beams and secondary beams; the composite anti-corrosion layer is a multi-layer structure, including at least a basic anti-corrosion layer and a surface protective layer.

3. A waterproof distribution box mobile platform according to claim 1, characterized in that, The mobile stabilization module includes: omnidirectional wheels connected to the frame via a suspension bracket that adapts to uneven ground, with a stone-blocking structure on the outer side of the wheel assembly; an electric drive mechanism connected to the omnidirectional wheels and equipped with a wireless control device; a braking system including an electromagnetic braking unit and a mechanical locking unit linked to the omnidirectional wheels; retractable spiral outriggers located on both sides of the bottom of the frame, with an anti-slip support structure at the bottom; and a shock-absorbing structure located between the wheel assembly and the frame, and between the drive mechanism and the frame.

4. A waterproof distribution box mobile platform according to claim 1, characterized in that, The leveling and stabilization module includes: a leveling drive unit distributed along the circumference of the frame, which achieves level calibration of the platform through telescopic adjustment; a level monitoring unit for detecting the longitudinal and lateral levelness of the platform; a tilt warning unit linked with the level monitoring unit, which triggers a warning when the tilt exceeds a threshold; and a dynamic balance monitoring unit for monitoring the tilt state during movement and feeding it back to the control module.

5. A waterproof distribution box mobile platform according to claim 1, characterized in that, The distribution box fixing module includes: a limiting fixing structure arranged around the outer perimeter of the distribution box, with a buffer component on the inner side; a cable interface unit, which is an embedded structure, with a sealing component and an elastic dust cover at the interface; a cable tray arranged along the length of the frame, with an openable cover plate on the top, and a cable separation structure inside the tray; and a counterweight adjustment structure, which is detachably located on one side of the frame, opposite to the cable interface unit, and the weight can be adjusted by adding or removing unit blocks.

6. A waterproof distribution box mobile platform according to claim 1, characterized in that, The waterproof protection module includes: a rainproof canopy, which is detachably installed above the distribution box and connected to the frame by buckles, with a water-blocking structure at the edge; a water collection structure, which is arranged circumferentially along the bottom of the frame to collect seepage water; a drainage unit, which is connected to the water collection structure and can drain accumulated water; and a water level monitoring unit, which is linked to the drainage unit and triggers drainage when the water level exceeds a threshold.

7. A waterproof distribution box mobile platform according to claim 1, characterized in that, The anti-collision module includes: a sensing and identification unit, arranged along the outer perimeter and top of the frame, used to detect different types of obstacles; a control unit, which integrates sensor data and links with the motion stabilization module and the early warning system; an early warning system, which triggers different early warning modes according to the distance to the obstacle; a protective structure, covering the exposed corners and collision-prone areas of the frame, including elastic anti-collision components and retractable protective components; and a path guiding unit, located at the top of the frame, used to guide the platform to move along a reference path.

8. A waterproof distribution box mobile platform according to claim 1, characterized in that, The status monitoring module includes: a sensor assembly for detecting parameters such as temperature, humidity, grounding resistance, and levelness; and a display unit embedded in the side of the frame for displaying parameters in real time and triggering an early warning when parameters exceed the limits.

9. A waterproof distribution box mobile platform according to claim 1, characterized in that, The frame is provided with a grounding terminal on its side, which is connected to the tunnel grounding grid through a conductive connector. The connection between the connector and the terminal is provided with an anti-corrosion treatment structure.

10. A waterproof distribution box mobile platform according to claim 3, characterized in that, A flexible coupling is provided between the drive mechanism and the wheel assembly, and a damping buffer component is provided between the power distribution box fixing module and the frame.

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