An electric transport semi-trailer that facilitates the driver's observation of external carriage changes

Abstract

This invention relates to the field of semi-trailer technology, specifically to an electric semi-trailer that facilitates driver observation of changes in the external cargo box. The invention includes a convenient observation device installed on the cargo box, comprising a storage device, a horizontal movement device, a movable component, a spiral cleaning device, a cleaning fluid delivery device, and a visual inspection device. The storage device is installed on the side of the cargo box, with its working end extending vertically upwards. The horizontal movement device is installed on the movable end of the storage device and moves horizontally along the top of the cargo box. The movable component is installed on the horizontal movement device. The spiral cleaning device is installed on the movable component and is used to clean the top of the cargo box. The cleaning fluid delivery device is installed at the bottom of the cargo box, with its output end positioned above the spiral cleaning device. The visual inspection device is installed on the horizontal movement device. This invention effectively improves maintenance safety and transportation stability.

Description

Technical Field

[0001] This invention relates to the field of semi-trailer technology, specifically to an electric semi-trailer that allows the driver to easily observe changes in the external cargo compartment. Background Technology

[0002] With the rapid development of the new energy logistics industry, electric semi-trailers are increasingly widely used in the freight transportation sector due to their environmental protection and energy-saving advantages, especially in the long-distance transportation of high-value goods and precision electromechanical equipment. These high-value goods have extremely high requirements for the sealing and integrity of the transportation environment; therefore, regular inspections of the external condition of the trailer are a crucial aspect of the operation of electric semi-trailers.

[0003] Chinese Patent No. CN216232615U discloses an insulated refrigerated truck body for food transportation, comprising a truck body, an insulation structure, a cargo rack, a door, and a reflective heat-insulating coating. The insulation structure is installed on the inner wall of the truck body, and the cargo rack is installed on the two inner walls of the truck body, with two sets of cargo racks. A refrigeration unit is installed on the top of the truck body. The door is installed on the outer wall of one side of the truck body via hinges, and a handle is installed on the surface of the door. A cavity is provided inside the side wall of the truck body, and a vacuum insulation panel is fixed inside the cavity. The reflective heat-insulating coating is evenly sprayed on the outer wall of the truck body. This device not only improves the heat insulation effect of the truck body, reduces energy consumption, saves transportation costs, and facilitates the rational and orderly allocation of storage space inside the truck body, but also prevents water from entering the truck body, delays rusting, and extends the service life of the truck body.

[0004] Most existing freight cars use a closed van structure to ensure transport stability and cargo safety. However, the roof, as a critical protective component, is constantly exposed to the complex outdoor environment. During operation, it is susceptible to impacts from flying stones and foreign objects, as well as continuous exposure to sunlight, rain, and sandstorms. Combined with the constant vibrations generated by vehicle operation, this makes it highly prone to problems such as roof deformation and damage, weld cracking, aging and failure of waterproofing strips, and metal corrosion and perforation. Such damage is often difficult to detect in its early stages. If the vehicle is driven in the rain or parked outdoors, rainwater can quickly seep into the interior through the damaged areas, directly causing high-value food items and precision electronic equipment to become damp, short-circuit, or even damaged. This not only leads to high costs for cargo compensation and equipment repair but also delays transport time and damages the market reputation of transport companies.

[0005] Currently, the industry still widely relies on the traditional method of manual, periodic climbing inspections for the roof of electric semi-trailer trucks. Because the semi-trailer truck bed is quite high off the ground, drivers must use ladders to climb to the roof for each inspection, conducting a segmented visual check. This process is cumbersome, time-consuming, and labor-intensive, resulting in extremely low efficiency and failing to meet the actual needs of high-frequency, rapid inspections during long-distance transport. Furthermore, climbing and walking on the roof are susceptible to slippery outdoor ground, wind disturbances, and smooth roof surfaces, increasing the risk of falls, slips, and injuries, posing significant personal safety hazards. Summary of the Invention

[0006] To address the aforementioned issues, an electric transport semi-trailer is provided that allows drivers to easily observe changes in the external cargo compartment. This convenient observation device effectively improves maintenance safety and transportation stability.

[0007] To address the problems of existing technologies, this invention provides an electric transport semi-trailer that facilitates driver observation of changes in the external cargo compartment. The semi-trailer includes a convenient observation device installed on the cargo compartment. This device comprises a storage unit, a horizontal movement unit, a movable component, a spiral cleaning device, a cleaning fluid delivery device, and a visual inspection device. The storage unit is installed on the side of the cargo compartment, with its working end extending vertically upwards. The horizontal movement unit is installed on the movable end of the storage unit and moves horizontally along the top of the cargo compartment. The movable component is installed on the horizontal movement unit. The spiral cleaning device is installed on the movable component and is used to clean the top of the cargo compartment. The cleaning fluid delivery device is installed at the bottom of the cargo compartment, with its output end positioned above the spiral cleaning device. The visual inspection device is installed on the horizontal movement unit and is used to observe the top of the cargo compartment.

[0008] Preferably, the horizontal moving device includes a limiting rail, a sliding mounting frame, and a synchronous drive device; two limiting rails are provided and symmetrically distributed on both sides of the carriage; the sliding mounting frame is slidably mounted on the limiting rail, and the bottom of the sliding mounting frame is provided with multiple movable rollers; the synchronous drive device is mounted on the sliding mounting frame and is used to drive the multiple movable rollers to rotate synchronously.

[0009] Preferably, the movable component includes a movable support, a first spring, and an abutting roller; the movable support is slidably mounted on the horizontal moving device; multiple first springs are provided and evenly distributed between the movable support and the horizontal moving device; the abutting roller is fixedly mounted on the bottom of the movable support.

[0010] Preferably, the spiral cleaning device includes a limiting connector, a first rotary driver, a rotating mounting shaft, and a spiral cleaning device; two limiting connectors are provided and distributed on a movable support, and the limiting connectors are rotatably connected to the movable support; the first rotary driver is fixedly mounted on the movable support, and the output end of the first rotary driver is drivenly connected to the limiting connectors; the rotating mounting shaft is horizontally arranged and installed between the two limiting connectors, and the rotating mounting shaft is detachably connected to the limiting connectors; the spiral cleaning device is mounted on the rotating mounting shaft.

[0011] Preferably, one end of the rotating mounting shaft is provided with a snap-fit ​​protrusion, and the end of the rotating mounting shaft away from the snap-fit ​​protrusion is provided with a mounting hole. A movable locking block is slidably installed inside the mounting hole, and a second spring is installed between the movable locking block and the rotating mounting shaft.

[0012] Preferably, the spiral cleaning device includes a mounting sleeve, a spiral brush, and spiral scrapers; the mounting sleeve is fitted onto the outside of the rotating mounting shaft, and the mounting sleeve is detachably connected to the rotating mounting shaft; the spiral brush and spiral scrapers are spirally distributed on the outside of the mounting sleeve, and the spiral brush and spiral scrapers are spirally stacked.

[0013] Preferably, the cleaning fluid delivery device includes a delivery nozzle, a storage tank, a delivery pipe, and a pipe winding device; the delivery nozzle is fixedly mounted on a movable component; the storage tank is fixedly mounted on the bottom of the carriage, and a delivery pump is installed on the storage tank; the pipe winding device is installed on a storage device, and the pipe winding device includes a mounting bracket, on which a pipe winding roller is rotatably mounted, and a second rotary driver is mounted on the mounting bracket, the output end of which is connected to the pipe winding roller in a driving connection; the pipe winding device includes a pipe guide frame installed on the storage device; one end of the delivery pipe is connected to the delivery pump, and the end of the delivery pipe away from the delivery pump passes through the pipe winding roller and is connected to the delivery nozzle.

[0014] Preferably, the visual inspection device includes a storage and mounting sleeve, an adjusting mounting shaft, cameras, and a third rotary driver; the storage and mounting sleeve is horizontally mounted on a horizontal moving device, and the bottom of the storage and mounting sleeve has an opening; the adjusting mounting shaft is rotatably mounted inside the storage and mounting sleeve, and multiple cameras are mounted on the adjusting mounting shaft; the third rotary driver is fixedly mounted on the storage and mounting sleeve, and the output end of the third rotary driver is connected to the adjusting mounting shaft for transmission.

[0015] Preferably, the storage device includes a mounting base, a lifting device, a lifting tray, and docking slide rails; the mounting base is fixedly installed on the side of the carriage; the lifting device is installed inside the mounting base, and the lifting end of the lifting device is equipped with a lifting tray; two docking slide rails are provided and fixedly installed on the lifting tray of the lifting device, and the docking slide rails are used to limit the storage of the horizontally moving device.

[0016] Preferably, the storage device also includes a self-cleaning seat installed on the mounting base. The self-cleaning seat has a cleaning tank inside, which is filled with combed brambles. The self-cleaning seat has a water outlet channel inside, and a water outlet pipe is also provided at the bottom of the self-cleaning seat. The end of the water outlet pipe away from the self-cleaning seat is connected to a cleaning liquid delivery device. The self-cleaning seat has a wastewater filter layer inside.

[0017] The advantages of this invention compared to the prior art are: 1. This invention, through an integrated structural design with multi-mechanism collaboration, completely replaces the traditional manual climbing inspection mode, achieving fully automated and mechanized operation of the entire process of detecting the condition of the carriage roof. This eliminates the safety hazards of manual high-altitude operations at the source and significantly improves inspection efficiency and accuracy. The invention utilizes a vertical lifting drive for the storage device, full-area horizontal displacement for the horizontal movement device, adaptive elastic floating and fitting of the moving components, rotating flushing cleaning for the spiral cleaning device, stable liquid supply for the cleaning fluid delivery device, and high-definition real-time imaging for the visual inspection device. This forms a closed-loop operation process of "lifting and positioning, full-area movement, adaptive fitting, automated cleaning, high-definition imaging detection, and resetting and storage." It eliminates the need for operators to climb the roof using ladders or to manually inspect section by section, enabling full-area, comprehensive inspection of the carriage roof. This completely avoids the personal safety risks of falls, slips, and injuries caused by environmental factors such as slippery ground, wind disturbances, and smooth roof surfaces. Meanwhile, this invention can quickly start operation in any scenario such as vehicle parking or rest, without the need for extra preparation time. The time taken for a single round of inspection is much shorter than that of traditional manual inspection mode, which can meet the actual needs of high-frequency and rapid inspection during long-distance transportation and is suitable for the operation scenario of long-distance continuous operation of electric transport semi-trailers. With the pre-automated cleaning process, it thoroughly removes mud, oil, corrosion products and other obstructions from the surface of the roof, avoiding the problem of missed defects and misjudgments caused by impurities. It can accurately identify various hidden damages such as roof deformation and breakage, weld cracks, rubber strip aging, metal corrosion and perforation, which greatly improves the accuracy and reliability of the inspection results.

[0018] 2. This invention, through its retractable structural design and integrated pre-cleaning and inspection operation logic, ensures routine and precise monitoring of the top of the vehicle compartment while effectively guaranteeing vehicle operational compliance. This significantly reduces the risk of cargo damage and economic losses for enterprises during the transportation of high-value goods, and simultaneously extends the service life of the vehicle compartment itself. When the device is not in operation, the horizontal movement mechanism, cleaning mechanism, and visual inspection mechanism can be completely retracted into the side storage cavity of the vehicle compartment using the storage device. The overall vehicle dimensions are restored to the original factory standard, completely avoiding issues of excessive height or width caused by exposed inspection mechanisms. This fully complies with road transport vehicle traffic regulations and will not interfere with normal vehicle operation or passage through height-restricted sections, making it suitable for all long-distance trunk line transport requirements. Meanwhile, through automated cleaning operations, the device can regularly remove corrosive impurities, rainwater scale, and oxide layers adhering to the surface of the carriage roof, reducing the continuous corrosion and erosion of the carriage roof by external pollutants, slowing down the rate of metal corrosion and aging failure of the waterproof structure, and extending the service life of the carriage's sealing structure and main structure. Furthermore, through high-frequency, high-precision routine inspections, it can promptly detect early-stage hidden damage to the roof, completing repairs before the damage expands and leaks, completely eliminating the problem of high-value goods getting damp, short-circuited, or damaged due to rainwater seeping into the carriage, significantly reducing the high economic costs of cargo compensation and carriage repairs, while ensuring stable transportation timeliness. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of an electric transport semi-trailer that facilitates the driver's observation of changes in the external cargo compartment according to the present invention. Figure 1 .

[0020] Figure 2 This is a three-dimensional schematic diagram of an electric transport semi-trailer that facilitates the driver's observation of changes in the external cargo compartment according to the present invention. Figure 2 .

[0021] Figure 3 This is a three-dimensional schematic diagram of the structure of an electric transport semi-trailer that facilitates the driver's observation of changes in the external cargo compartment, according to the present invention.

[0022] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle.

[0023] Figure 5 This is a three-dimensional schematic diagram of a horizontal moving device, movable components, and spiral cleaning device in an electric transport semi-trailer that facilitates the driver's observation of changes in the external cargo compartment, according to the present invention.

[0024] Figure 6 This is a three-dimensional schematic diagram of the disassembled state of the spiral cleaning device in an electric transport semi-trailer, which facilitates the driver's observation of changes in the external cargo compartment according to the present invention.

[0025] Figure 7This is a three-dimensional schematic diagram of a rotating shaft and a spiral cleaning device in an electric transport semi-trailer that facilitates the driver's observation of changes in the external cargo compartment, according to the present invention.

[0026] Figure 8 This is a three-dimensional schematic diagram of a rotating shaft mounted in an electric transport semi-trailer, which facilitates the driver's observation of changes in the external cargo compartment according to the present invention.

[0027] Figure 9 This is a three-dimensional schematic diagram of a visual detection device in an electric transport semi-trailer that facilitates the driver's observation of changes in the external cargo compartment, according to the present invention.

[0028] Figure 10 This is a three-dimensional schematic diagram of a storage device in an electric transport semi-trailer that facilitates the driver's observation of changes in the external cargo compartment, according to the present invention.

[0029] The numbers on the map are: 1. Carriage; 2. Storage device; 21. Mounting base; 22. Lifting device; 23. Lifting tray; 24. Connecting slide rail; 25. Self-cleaning seat; 251. Washing tank; 252. Brambles; 254. Water outlet pipe; 255. Wastewater filter layer; 3. Horizontal movement device; 31. Limiting rail; 32. Sliding mounting bracket; 321. Moving roller; 33. Synchronous drive device; 4. Movable component; 41. Movable bracket; 42. First spring; 43. Abutting roller; 5. Spiral cleaning device; 51. Limiting connector; 52. First rotary drive 53. Rotary mounting shaft; 531. Snap-fit ​​protrusion; 532. Movable locking block; 54. Spiral cleaning tool; 541. Mounting bushing; 542. Spiral brush; 543. Spiral scraper; 6. Cleaning fluid delivery device; 61. Delivery nozzle; 62. Storage tank; 63. Delivery pump; 64. Delivery pipeline; 65. Pipeline guide frame; 66. Mounting bracket; 67. Pipeline winding roller; 68. Second rotary actuator; 7. Vision inspection device; 71. Storage mounting sleeve; 711. Opening; 72. Adjusting mounting shaft; 74. Third rotary actuator. Detailed Implementation

[0030] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0031] See Figures 1 to 10As shown, an electric transport semi-trailer that facilitates driver observation of changes in the external cargo compartment includes a convenient observation device installed on the cargo compartment 1. The convenient observation device includes a storage device 2, a horizontal moving device 3, a movable component 4, a spiral cleaning device 5, a cleaning fluid delivery device 6, and a visual inspection device 7. The storage device 2 is installed on the side of the cargo compartment 1, with its working end extending vertically upwards. The horizontal moving device 3 is installed on the movable end of the storage device 2 and moves horizontally along the top of the cargo compartment 1. The movable component 4 is installed on the horizontal moving device 3. The spiral cleaning device 5 is installed on the movable component 4 and is used to clean the top of the cargo compartment 1. The cleaning fluid delivery device 6 is installed at the bottom of the cargo compartment 1, with its output end positioned above the spiral cleaning device 5. The visual inspection device 7 is installed on the horizontal moving device 3 and is used to observe the top of the cargo compartment 1.

[0032] When it is necessary to perform status inspection on the top of the carriage 1, the storage device 2 drives its working end to extend vertically, causing the horizontal moving device 3 to rise from the storage state to the working height of the top of the carriage 1. The horizontal moving device 3 then moves along the top of the carriage 1 to the designated work position in the area to be inspected.

[0033] After the horizontal moving device 3 is activated, the movable component 4 and the spiral cleaning device 5 move horizontally synchronously along the top surface of the carriage 1. During the movement, the movable component 4 maintains a state of contact and contact with the outer surface of the carriage 1 roof. When the movable component 4 moves to the recessed area of ​​the carriage 1 roof, the movable component 4 generates a slight vertical displacement by means of elastic floating, so that the cleaning end of the spiral cleaning device 5 always maintains a reasonable contact pressure and contact angle with the surface of the carriage 1 roof, ensuring the continuity and effectiveness of the cleaning operation.

[0034] At the same time, the cleaning fluid delivery device 6 is activated, delivering the cleaning fluid to the top of the spiral cleaning device 5. Under the rotation of the spiral cleaning device 5, the cleaning fluid evenly covers the cleaning area, and performs spiral flushing and cleaning of the mud, oil and corrosion products attached to the top surface of the carriage 1, achieving efficient cleaning of the top surface of the carriage 1.

[0035] After the cleaning of the roof surface of carriage 1 is completed, the spiral cleaning device 5 stops operating, and the visual inspection device 7 starts working. The visual inspection device 7 acquires high-definition images of the cleaned roof surface of carriage 1, and the driver obtains real-time surface condition information of the roof of carriage 1 through the on-board display terminal, including but not limited to defects such as roof deformation and damage, weld cracks, aging and failure of waterproof strips, and metal corrosion and perforation, thereby achieving rapid and accurate judgment of the condition of the roof of carriage 1.

[0036] After the inspection is completed, the horizontal moving device 3 drives the movable component 4 and the spiral cleaning device 5 to retract horizontally into the storage cavity of the storage device 2. Simultaneously, the storage device 2 performs a reset action, with its working end retracting vertically, so that the horizontal moving device 3 and all auxiliary components are completely stored in the side of the carriage 1. The overall vehicle dimensions are restored to their original state, effectively preventing vehicle height issues caused by exposed devices and ensuring compliance with traffic regulations during transportation.

[0037] Through the coordinated operation of multiple mechanisms, including the lifting drive of the storage device 2, the longitudinal displacement of the horizontal moving device 3, the adaptive floating fit of the movable component 4, the rotation cleaning of the spiral cleaning device 5, the continuous liquid supply of the cleaning fluid delivery device 6, and the real-time imaging of the visual inspection device 7, the automation and mechanization of the top status detection of the carriage 1 are realized. This significantly improves the detection efficiency, eliminates the personal safety risks such as falls from heights and slips caused by manual climbing and inspection, and ensures effective monitoring of the sealing integrity of the carriage 1 during the transportation of high-value goods. It also reduces the risk of goods getting damp and damaged due to hidden damage to the top of the carriage 1, as well as the corresponding economic losses.

[0038] See Figures 1 to 6 As shown, the horizontal moving device 3 includes a limiting rail 31, a sliding mounting frame 32, and a synchronous drive device 33; there are two limiting rails 31, which are symmetrically distributed on both sides of the carriage 1; the sliding mounting frame 32 is slidably mounted on the limiting rail 31, and the bottom of the sliding mounting frame 32 is provided with multiple moving rollers 321; the synchronous drive device 33 is mounted on the sliding mounting frame 32, and the synchronous drive device 33 is used to drive the multiple moving rollers 321 to rotate synchronously.

[0039] When the storage device 2 receives the lifting command, its working end extends vertically, driving the sliding mounting frame 32 to rise from the storage cavity to the working height at the top of the carriage 1. During this lifting process, multiple moving rollers 321 at the bottom of the sliding mounting frame 32 disengage from the constraint range of the limiting rail 31 and rise synchronously with the sliding mounting frame 32 to the top plane of the carriage 1. After reaching the desired position, the synchronous drive device 33 is activated, causing the sliding mounting frame 32 to move horizontally to the initial access position beside the limiting rail 31, completing the transition from the vertical lifting state to the horizontal working state.

[0040] After the sliding mounting bracket 32 ​​is in place, the synchronous drive device 33 continues to distribute power evenly to the multiple moving rollers 321 at the bottom of the sliding mounting bracket 32 ​​through the transmission mechanism, driving each moving roller 321 to rotate synchronously at the same angular velocity. Each moving roller 321 generates uniform pure rolling on the track surface of the limiting track 31. The rolling friction between the moving roller 321 and the surface of the limiting track 31 is converted into a horizontal driving force for the sliding mounting bracket 32 ​​along the longitudinal direction of the limiting track 31, thereby driving the sliding mounting bracket 32 ​​to move smoothly along the length direction of the top of the carriage 1.

[0041] The limiting rails 31 are symmetrically arranged on both sides of the carriage 1. Multiple movable rollers 321 at the bottom of the sliding mounting frame 32 are embedded in the rail grooves of the limiting rails 31. The limiting rails 31 provide bidirectional constraint and precise guidance for the movement direction and stroke of the sliding mounting frame 32. During the synchronous rotation of the multiple movable rollers 321 driven by the synchronous drive device 33, the limiting rails 31 restrict the lateral offset and vertical jump of the sliding mounting frame 32, ensuring that the sliding mounting frame 32 maintains a stable movement trajectory throughout the entire horizontal movement stroke. This effectively avoids abnormal working conditions such as deviation and jamming caused by uneven driving force on one side or external vibration interference, ensuring the smoothness and reliability of the horizontal movement process.

[0042] See Figures 1 to 6 As shown, the movable component 4 includes a movable support 41, a first spring 42, and an abutting roller 43; the movable support 41 is slidably mounted on the horizontal moving device 3; multiple first springs 42 are provided and are evenly distributed between the movable support 41 and the horizontal moving device 3; the abutting roller 43 is fixedly mounted on the bottom of the movable support 41.

[0043] When the movable component 4 is installed on the horizontal moving device 3, multiple first springs 42 are evenly distributed between the movable bracket 41 and the horizontal moving device 3. Each first spring 42 is in a pre-compressed state, applying a continuous downward elastic preload to the movable bracket 41. This elastic preload is transmitted through the movable bracket 41 to the contact roller 43 fixedly installed at its bottom, ensuring that the contact roller 43 always maintains a constant contact pressure against the outer surface of the roof of the carriage 1 under the action of elastic force. This ensures that the movable component 4 maintains a stable contact state with the surface of the roof of the carriage 1 throughout the entire horizontal moving stroke, providing a reliable mounting base and working support platform for the spiral cleaning device 5.

[0044] When the horizontal moving device 3 drives the movable component 4 to move horizontally along the surface of the top plate of the carriage 1, if there are uneven areas on the surface of the top plate of the carriage 1 in the travel path, the contact roller 43, under the action of the elastic preload of the first spring 42, will generate a small vertical elastic displacement along the sliding guide structure of the movable bracket 41. The first spring 42 absorbs the height difference changes of the surface of the top plate of the carriage 1 through its own elastic deformation, so that the contact roller 43 at the bottom of the movable bracket 41 always maintains a reasonable contact pressure and contact angle with the surface of the top plate of the carriage 1, avoiding the cleaning end of the spiral cleaning device 5 from losing contact with the surface of the top plate of the carriage 1 or being overloaded due to the undulation of the top plate surface, thus ensuring the continuity and effectiveness of the cleaning operation under complex top plate surface conditions.

[0045] The abutting roller 43 is fixedly installed at the bottom of the movable bracket 41, forming a rolling friction pair with the outer surface of the top plate of the carriage 1. Compared with sliding friction, the abutting roller 43 changes the friction between the movable bracket 41 and the surface of the top plate of the carriage 1 from sliding friction to rolling friction, which significantly reduces the motion resistance of the movable component 4 during horizontal movement, reduces the elastic load consumption of the first spring 42, improves the driving efficiency and motion stability of the horizontal moving device 3, and at the same time reduces the wear rate of the abutting roller 43 and the surface of the top plate of the carriage 1, extending the service life of the movable component 4.

[0046] See Figures 1 to 7 As shown, the spiral cleaning device 5 includes a limiting connector 51, a first rotary driver 52, a rotating mounting shaft 53, and a spiral cleaning device 54. Two limiting connectors 51 are provided and distributed on the movable support 41, and the limiting connectors 51 are rotatably connected to the movable support 41. The first rotary driver 52 is fixedly mounted on the movable support 41, and its output end is drively connected to the limiting connectors 51. The rotating mounting shaft 53 is horizontally arranged and installed between the two limiting connectors 51, and is detachably connected to the limiting connectors 51. The spiral cleaning device 54 is mounted on the rotating mounting shaft 53.

[0047] When the spiral cleaning device 5 is installed on the movable support 41, two limiting joints 51 are respectively distributed on both sides of the movable support 41, and are rotatably connected to the movable support 41 to establish relative rotational freedom. The rotating mounting shaft 53 is horizontally set, and its two ends are fixedly connected to the two limiting joints 51 through a detachable connection to form a stable axial support structure. The spiral cleaning tool 54 is installed and fixed on the outer circumferential surface of the rotating mounting shaft 53, completing the overall assembly and positioning of the spiral cleaning device 5. The first rotary driver 52 is fixedly installed on the movable support 41, and its output end is connected to the limiting joints 51 through a transmission mechanism to establish a complete power transmission link from the first rotary driver 52 through the limiting joints 51, the rotating mounting shaft 53 to the spiral cleaning tool 54.

[0048] When the horizontal moving device 3 drives the movable support 41 to move horizontally along the surface of the top plate of the carriage 1, the movable support 41 synchronously drives the two limit joints 51 to move horizontally along the same path. During this process, the first rotary driver 52 receives the start command and starts to operate. The rotational power output from its output end is transmitted to the limit joints 51 through the transmission mechanism, driving the two limit joints 51 to rotate synchronously at the same angular velocity.

[0049] The limiting connector 51 rotates under the drive of the first rotary driver 52, causing the rotating mounting shaft 53 to rotate around its own axis at the same angular velocity. The rotational motion of the rotating mounting shaft 53 is further transmitted to the spiral cleaning tool 54 mounted on its outer circumference, causing the spiral cleaning tool 54 to rotate at high speed on the surface of the carriage 1 roof. During the rotation, the spiral cleaning tool 54 generates continuous frictional contact with the outer surface of the carriage 1 roof, mechanically peeling off and spirally scraping away the mud, sand particles, oil film, and metal corrosion products adhering to the surface of the carriage 1 roof.

[0050] The rotating mounting shaft 53 and the limiting connector 51 are detachably connected, which allows the spiral cleaning tool 54 to be quickly removed and replaced from the rotating mounting shaft 53. This facilitates the individual maintenance and replacement of the severely worn spiral cleaning tool 54, reducing the maintenance cost of the device.

[0051] See Figure 7 and Figure 8 As shown, one end of the rotating mounting shaft 53 is provided with a snap-fit ​​protrusion 531, and the other end of the rotating mounting shaft 53 away from the snap-fit ​​protrusion 531 is provided with a mounting hole. A movable snap block 532 is slidably installed inside the mounting hole, and a second spring is installed between the movable snap block 532 and the rotating mounting shaft 53.

[0052] When the rotating mounting shaft 53 is installed between the two limiting connectors 51, the snap-fit ​​protrusion 531 at one end of the rotating mounting shaft 53 aligns with one of the limiting connectors 51 and is pushed in axially. The snap-fit ​​protrusion 531 and the limiting connector 51 then engage, completing the axial positioning and circumferential constraint of the rotating mounting shaft 53 on that side. At the same time, the mounting hole at the other end of the rotating mounting shaft 53 aligns with the other limiting connector 51. Under the continuous action of the elastic preload of the second spring, the movable locking block 532 slides outward axially within the mounting hole and extends outward. The movable locking block 532 engages with the limiting connector 51, completing the axial locking and circumferential constraint of the rotating mounting shaft 53 on the other side.

[0053] Through the aforementioned double-ended differentiated snap-fit ​​structure, the rotating mounting shaft 53 forms a stable axial support and circumferential transmission connection between the two limiting connectors 51. Specifically, the snap-fit ​​protrusion 531 provides fixed snap-fit ​​positioning on one side, while the second spring-driven movable snap-fit ​​block 532 provides elastic self-locking snap-fit ​​positioning on the other side. The two work together to ensure that the rotating mounting shaft 53 can withstand stable torque transmission loads when the first rotary actuator 52 drives the limiting connectors 51 to rotate at high speed, preventing axial disengagement or circumferential slippage due to vibration or impact, and ensuring the reliability of the power transmission link.

[0054] See Figure 6 and Figure 7As shown, the spiral cleaning device 54 includes a mounting sleeve 541, a spiral brush 542, and a spiral scraper 543; the mounting sleeve 541 is fitted onto the outside of the rotating mounting shaft 53, and the mounting sleeve 541 is detachably connected to the rotating mounting shaft 53; the spiral brush 542 and the spiral scraper 543 are spirally distributed on the outside of the mounting sleeve 541, and the spiral brush 542 and the spiral scraper 543 are spirally stacked.

[0055] When the spiral cleaning device 54 is installed on the rotating mounting shaft 53, the mounting sleeve 541 is fitted onto the outside of the rotating mounting shaft 53 and forms a stable circumferential fixation and axial limiting fit with the rotating mounting shaft 53 through a detachable connection, establishing a complete power transmission path from the rotating mounting shaft 53 to the mounting sleeve 541. The spiral brush 542 and spiral scraper 543 are spirally stacked and fixedly installed on the outer circumferential surface of the mounting sleeve 541. The spiral brush 542 and spiral scraper 543 are arranged in a spiral shape along the axial direction of the mounting sleeve 541, and the two form a stepped overlapping structure in the radial direction, completing the overall assembly and positioning of the spiral cleaning device 54.

[0056] When the rotating mounting shaft 53 rotates around its own axis under the rotational power transmitted by the first rotary driver 52 through the limiting connector 51, the rotational motion of the rotating mounting shaft 53 is synchronously transmitted to the mounting sleeve 541, causing the mounting sleeve 541 to rotate synchronously around the axis of the rotating mounting shaft 53 at the same angular velocity. The rotational motion of the mounting sleeve 541 is further transmitted to the spiral brush 542 and spiral scraper 543 fixedly mounted on its outer circumference, driving the spiral brush 542 and spiral scraper 543 to rotate at high speed on the outer surface of the roof of the carriage 1, forming a continuous spiral motion trajectory.

[0057] During high-speed rotation, the bristle tips of the spiral brush 542 maintain continuous frictional contact with the outer surface of the carriage roof 1. The spiral arrangement of the spiral brush 542 applies periodic radial scraping and axial thrust to the surface of the carriage roof 1 during rotation, mechanically peeling and scraping away mud, oil film, and metal corrosion products adhering to the surface. The fiber material of the spiral brush 542 has excellent elastic deformation capabilities, allowing it to adaptively conform to the surface contour when in contact with the carriage roof 1, effectively increasing the contact area with the dirt layer and improving the removal efficiency of stubborn stains.

[0058] The spiral scraper 543 and spiral brush 542 are spirally stacked, with a preset angular difference in their rotation phase. During high-speed rotation, the scraping edge of the spiral scraper 543 forms linear contact with the outer surface of the roof of the carriage 1, spirally pushing the dirt fragments and cleaning fluid mixture remaining on the surface of the roof of the carriage 1 after being cleaned and peeled off by the spiral brush 542. The rigid scraping structure of the spiral scraper 543 rapidly and horizontally transports the peeled dirt and cleaning fluid along the spiral trajectory to the edge area of ​​the roof surface of the carriage 1, allowing the dirt to quickly detach from the roof surface of the carriage 1 under the combined action of centrifugal force and spiral pushing force, avoiding secondary deposition of dirt in the cleaning area, and significantly improving the thoroughness and cleaning efficiency of the cleaning operation.

[0059] See Figure 1 and Figure 2 As shown, the cleaning fluid delivery device 6 includes a delivery nozzle 61, a storage tank 62, a delivery pipe 64, and a pipe winding device. The delivery nozzle 61 is fixedly installed on the movable component 4. The storage tank 62 is fixedly installed at the bottom of the carriage 1, and a delivery pump 63 is provided on the storage tank 62. The pipe winding device is installed on the storage device 2. The pipe winding device includes a mounting bracket 66, on which a pipe winding roller 67 is rotatably mounted. A second rotary driver 68 is installed on the mounting bracket 66, and the output end of the second rotary driver 68 is connected to the pipe winding roller 67. The pipe winding device includes a pipe guide frame 65 installed on the storage device 2. One end of the delivery pipe 64 is connected to the delivery pump 63, and the end of the delivery pipe 64 away from the delivery pump 63 passes through the pipe winding roller 67 and is connected to the delivery nozzle 61.

[0060] A storage tank 62 is fixedly installed at the bottom of the carriage 1 to store cleaning fluid. A delivery pump 63 is installed on the storage tank 62, with its inlet end connected to the inside of the storage tank 62 and its outlet end fixedly connected to one end of the delivery pipe 64. The end of the delivery pipe 64 away from the delivery pump 63 passes sequentially through a pipe winding roller 67 and a pipe guide frame 65 installed on the storage device 2, and then connects to a delivery nozzle 61 fixedly installed on the movable component 4. In the non-working state, the excess length of the delivery pipe 64 is evenly wound around the outer circumference of the pipe winding roller 67, which provides storage support. The pipe guide frame 65 is fixedly installed on the storage device 2 to orient and guide the stretching path of the delivery pipe 64, ensuring that the delivery pipe 64 moves smoothly along a preset trajectory during the winding and unwinding process, and avoiding jamming or entanglement caused by the pipe sagging or deviating due to its own weight.

[0061] When the horizontal moving device 3 drives the movable component 4 to move horizontally along the top surface of the carriage 1, the conveying nozzle 61, which is fixedly installed on the movable component 4, moves synchronously with the movable component 4. The horizontal displacement of the conveying nozzle 61 applies an axial traction force to the conveying pipe 64, causing the conveying pipe 64 to be continuously pulled and extended along the top of the carriage 1. When the conveying pipe 64 is pulled, the pipe roll wrapped around the outer circumference of the pipe winding roller 67 is gradually released, and the pipe winding roller 67 tends to rotate under the traction torque of the conveying pipe 64.

[0062] During this process, the second rotary drive 68 receives a control command and starts operating. The rotational power output from its output end is transmitted to the pipe winding drum 67 via a transmission mechanism, driving the pipe winding drum 67 to rotate at a constant speed in the same direction as the release direction of the conveying pipe 64. The constant speed rotation of the pipe winding drum 67 releases the conveying pipe 64 wound on its outer circumference, so that the conveying pipe 64 receives a stable supply from the side of the pipe winding drum 67 while being pulled, ensuring that the conveying pipe 64 is always in a moderately tensioned state, avoiding motion interference caused by pipe slack accumulation or tensile deformation caused by excessive pipe tension.

[0063] The pipeline guide frame 65 provides full-process guidance and constraint to the stretched and elongated conveying pipeline 64, enabling the conveying pipeline 64 to smoothly transition along the preset spatial trajectory, eliminating the deflection deformation of the pipeline under gravity, and ensuring the stability of the conveying pipeline 64's trajectory and the unobstructed flow of its cross-section throughout the entire stroke range.

[0064] After the cleaning operation is started, the delivery pump 63 begins operation, pressurizing the cleaning fluid stored in the storage tank 62 and pumping it into the delivery pipe 64. Driven by the pressure provided by the delivery pump 63, the cleaning fluid flows continuously along the inner cavity of the delivery pipe 64 towards the delivery nozzle 61. The cleaning fluid is delivered through the delivery pipe 64 to the delivery nozzle 61 on the movable component 4, and is then sprayed out by the delivery nozzle 61 onto the outer surface of the roof of the carriage 1 at a set spray pressure and spray angle.

[0065] When the cleaning operation is completed and the horizontal moving device 3 drives the movable component 4 to retract along the top surface of the carriage 1 towards the storage device 2, the conveying nozzle 61 moves in the opposite direction synchronously with the movable component 4. The second rotary drive 68 of the pipe winding device starts synchronously and runs in the opposite direction, driving the pipe winding roller 67 to rotate in the winding direction, so that the conveying pipe 64 is rewound evenly onto the outer circumference of the pipe winding roller 67. The pipe guide frame 65 provides guidance and constraint for the conveying pipe 64 during the recycling process, ensuring that the conveying pipe 64 is wound and recycled in an orderly and neat manner, avoiding cross-entanglement or local accumulation of the pipe during the winding process.

[0066] See Figure 1 and Figure 9As shown, the visual inspection device 7 includes a storage and mounting sleeve 71, an adjusting mounting shaft 72, a camera, and a third rotary driver 74. The storage and mounting sleeve 71 is horizontally mounted on the horizontal moving device 3, and the bottom of the storage and mounting sleeve 71 has an opening 711. The adjusting mounting shaft 72 is rotatably mounted inside the storage and mounting sleeve 71, and multiple cameras are mounted on the adjusting mounting shaft 72. The third rotary driver 74 is fixedly mounted on the storage and mounting sleeve 71, and the output end of the third rotary driver 74 is connected to the adjusting mounting shaft 72 for transmission.

[0067] When the visual inspection device 7 is installed on the horizontal moving device 3, the storage and mounting sleeve 71 is horizontally fixed at the designated position of the horizontal moving device 3. The bottom of the storage and mounting sleeve 71 has an opening 711 for the camera to observe. The adjusting mounting shaft 72 is rotatably installed in the internal cavity of the storage and mounting sleeve 71, and its axis is aligned with the axis of the storage and mounting sleeve 71. The adjusting mounting shaft 72 can rotate relative to the storage and mounting sleeve 71 around its own axis. Multiple cameras are evenly distributed along the circumference of the adjusting mounting shaft 72 and fixedly installed on the outer circumferential surface of the adjusting mounting shaft 72. The lens of each camera points outward from the opening 711 at the bottom of the storage and mounting sleeve 71. The third rotary actuator 74 is fixedly installed on the outer wall of the storage and mounting sleeve 71. Its output end is connected to the adjusting mounting shaft 72 through a transmission mechanism, establishing a complete rotary drive link from the third rotary actuator 74 through the adjusting mounting shaft 72 to each camera. The outer wall of the storage and installation sleeve 71 is equipped with a lighting strip to provide sufficient illumination to the surface of the roof of the carriage 1 during inspection operations.

[0068] When the spiral cleaning device 5 performs a rotary cleaning operation on the roof surface of the carriage 1, the third rotary drive 74 receives a control command and starts operating. The rotational power output from its output end is transmitted to the adjusting mounting shaft 72 via a transmission mechanism, driving the adjusting mounting shaft 72 to rotate around its own axis. The rotational movement of the adjusting mounting shaft 72 causes multiple cameras fixedly mounted on it to rotate synchronously, so that each camera rotates from the position of the bottom opening 711 of the storage mounting sleeve 71 into the internal cavity of the storage mounting sleeve 71, achieving complete storage and shielding protection of the camera assembly.

[0069] In this state, the sleeve wall of the housing and installation sleeve 71 forms a comprehensive physical shield for multiple cameras, effectively preventing mud and sand splashes, cleaning fluid sprays and mechanical scraping debris generated by the spiral cleaning device 5 during high-speed rotation cleaning from causing pollution, scratching or impact damage to the camera lens surface, ensuring the integrity and cleanliness of the camera optical components, and extending the service life of the visual inspection device 7.

[0070] After the cleaning operation on the roof surface of the carriage 1 is completed and the spiral cleaning device 5 stops operating, the third rotary drive 74 receives the control command again and starts operating in reverse, driving the adjusting mounting shaft 72 to rotate in the opposite direction around its own axis. The rotational movement of the adjusting mounting shaft 72 causes multiple cameras to gradually rotate from the internal cavity of the storage mounting sleeve 71 to the outside of the bottom opening 711 of the storage mounting sleeve 71, so that the lens of each camera changes from facing the inner wall of the storage mounting sleeve 71 to facing the outer surface of the roof of the carriage 1, completing the deployment and positioning of the camera assembly.

[0071] Simultaneously, the lighting strips activate, projecting a uniform and stable beam of light onto the outer surface of the carriage 1 roof, providing ample illumination compensation for the detection area on the carriage 1 roof surface. The lighting strips effectively eliminate uneven illumination caused by structural obstructions, insufficient ambient light, or shadowed areas on the carriage 1 roof surface, ensuring that each camera receives sufficient and uniform ambient lighting during image acquisition, thus providing a reliable optical environment for stable high-definition image acquisition.

[0072] After multiple cameras complete their deployment and positioning, each camera simultaneously begins image acquisition. Because the multiple cameras are evenly distributed along the circumference of the adjustment and mounting axis 72, each camera covers a different detection area on the surface of the carriage 1's roof, forming a multi-view, full-coverage image acquisition array. Each camera continuously acquires high-resolution images of the cleaned outer surface of the carriage 1's roof, and the acquired image data is transmitted in real-time to the vehicle-mounted display terminal via the vehicle data transmission link.

[0073] The driver uses an onboard display terminal to observe and analyze high-definition images transmitted from various cameras in real time, obtaining information on the condition of the roof surface of the cargo compartment 1, including but not limited to the location, shape, and severity of defects such as roof deformation and damage, weld cracks, aging and failure of waterproof sealant strips, and metal corrosion and perforation. Through collaborative imaging from multiple cameras and comprehensive comparison of image data, the driver can quickly and accurately determine the condition of the roof of the cargo compartment 1, providing reliable visual data support for the effective monitoring of the sealing integrity of the cargo compartment 1 during transportation.

[0074] See Figure 3 and Figure 10 As shown, the storage device 2 includes a mounting base 21, a lifting device 22, a lifting tray 23, and a docking slide rail 24; the mounting base 21 is fixedly installed on the side of the carriage 1; the lifting device 22 is installed inside the mounting base 21, and the lifting end of the lifting device 22 is equipped with the lifting tray 23; there are two docking slide rails 24, which are fixedly installed on the lifting tray 23, and the docking slide rails 24 are used to limit the storage of the horizontal moving device 3.

[0075] The mounting base 21 is fixedly installed on the side outer wall of the carriage 1, and its interior has a storage space for accommodating the lifting device 22. The lifting device 22 is installed in the internal storage space of the mounting base 21, and the lifting support plate 23 is fixedly connected to the lifting output end of the lifting device 22. Two docking slide rails 24 are symmetrically fixedly installed on the upper surface of the lifting support plate 23. The two docking slide rails 24 are arranged parallel to each other along the moving direction of the horizontal moving device 3, and the docking slide rails 24 are adapted to the bottom guide structure of the horizontal moving device 3 to implement bidirectional limiting constraints and guiding support for the horizontal moving device 3.

[0076] In the non-operating state, the horizontal moving device 3 is completely parked in the slide rail grooves of the two docking slide rails 24, the lifting device 22 is in a fully retracted state, and the lifting pallet 23 and docking slide rails 24 are located at the lowest position of the storage space inside the mounting base 21. At this time, the horizontal moving device 3 and all its auxiliary components, including the movable components 4, the spiral cleaning device 5, the output end of the cleaning fluid delivery device 6, and the vision inspection device 7, are all stored within the mounting base 21 on the side of the carriage 1. The overall outer dimensions of the vehicle are consistent with the original state, effectively avoiding the problem of vehicle height exceeding the limit due to exposed devices, and ensuring compliance with traffic regulations during transportation.

[0077] See Figure 3 and Figure 10 As shown, the storage device 2 also includes a self-cleaning seat 25 installed on the mounting base 21. The self-cleaning seat 25 has a cleaning tank 251 inside, and the cleaning tank 251 is filled with combing brambles 252. The self-cleaning seat 25 has a water outlet channel inside, and a water outlet pipe 254 is also provided at the bottom of the self-cleaning seat 25. The end of the water outlet pipe 254 away from the self-cleaning seat 25 is connected to the cleaning liquid delivery device 6. The self-cleaning seat 25 has a sewage filter layer 255 inside.

[0078] When the lifting device 22 drives the lifting tray 23 and the docking slide rail 24 to descend, causing the horizontal moving device 3 and the spiral cleaning device 5 installed on it to be completely stored in the internal storage space of the mounting base 21, the spiral cleaning tool 54 on the spiral cleaning device 5 descends synchronously with the horizontal moving device 3 and falls precisely into the cleaning tank 251 of the self-cleaning seat 25. A defined gap is formed between the outer peripheral surface of the spiral cleaning tool 54 and the inner wall of the cleaning tank 251, and the combing twigs 252 are set within this defined gap, forming a frictional engagement with the outer surface of the spiral cleaning tool 54.

[0079] In this state, the first rotary driver 52 of the spiral cleaning device 5 receives the control command and starts to operate. The rotational power output from its output end is transmitted to the spiral cleaning device 54 through the limit connector 51 and the rotating mounting shaft 53, driving the spiral cleaning device 54 to rotate around its own axis inside the cleaning tank 251.

[0080] As the spiral cleaning tool 54 rotates within the cleaning tank 251, its outer surface continuously rubs against the densely arranged combing bristles 252. Driven by the rotational motion of the spiral cleaning tool 54, the combing bristles 252 mechanically comb and peel away the mud, sand particles, oil film, and metal corrosion products adhering to the outer circumference of the spiral cleaning tool 54. The spiral structure of the spiral cleaning tool 54 and the array arrangement of the combing bristles 252 form a composite friction pair. As the spiral cleaning tool 54 rotates, the combing bristles 252 penetrate deep into the gaps along the spiral grooves of the spiral brush 542 and spiral scraper 543, deeply combing and scraping away the dirt remaining in the spiral grooves, effectively removing stubborn dirt left in the spiral grooves and at the base of the bristles after the spiral cleaning tool 54 has cleaned the roof of the carriage 1.

[0081] While the spiral cleaner 54 rotates and performs friction cleaning, the delivery pump 63 of the cleaning fluid delivery device 6 starts operating, pumping the cleaning fluid stored in the storage tank 62 into the delivery pipe 64 after pressurization. The cleaning fluid is delivered along the delivery pipe 64 to the interior of the self-cleaning seat 25, providing a comprehensive rinse to the high-speed rotating spiral cleaner 54. This fully wets the outer surface of the spiral cleaner 54 and the friction area of ​​the combing bramble 252, dissolving and rinsing away the dirt removed by friction.

[0082] After rinsing in the cleaning tank 251, the mixed liquid carrying dirt flows to the bottom of the tank under gravity. The mixed liquid undergoes solid-liquid separation filtration through the wastewater filter layer 255 at the bottom of the tank 251. The wastewater filter layer 255 traps solid dirt particles in the upper layer, while the cleaning liquid passes through the wastewater filter layer 255 and enters the outlet channel below. The cleaning liquid then flows through the outlet channel into the outlet pipe 254, and returns to the storage tank 62 of the cleaning liquid conveying device 6, achieving the recycling and reuse of the cleaning liquid and effectively reducing the consumption of cleaning liquid and operating costs.

[0083] Solid dirt particles trapped by the wastewater filter layer 255 accumulate on its upper surface. When the accumulated dirt reaches a preset threshold, the operator can clean or replace the wastewater filter layer 255 and discharge the trapped solid dirt for centralized treatment. The wastewater filter layer 255 effectively prevents solid dirt particles from flowing back into the storage tank 62 and causing contamination of the cleaning solution, ensuring the cleanliness and cleaning efficiency of the circulating cleaning solution.

[0084] Specific working principle: When it is necessary to perform status inspection on the top of the carriage 1, the storage device 2 drives its working end to extend vertically, causing the horizontal moving device 3 to rise from the storage state to the working height of the top of the carriage 1. The horizontal moving device 3 then moves along the top of the carriage 1 to the designated work position in the area to be inspected.

[0085] After the horizontal moving device 3 is activated, the movable component 4 and the spiral cleaning device 5 move horizontally synchronously along the top surface of the carriage 1. During the movement, the movable component 4 maintains a state of contact and contact with the outer surface of the carriage 1 roof. When the movable component 4 moves to the recessed area of ​​the carriage 1 roof, the movable component 4 generates a slight vertical displacement by means of elastic floating, so that the cleaning end of the spiral cleaning device 5 always maintains a reasonable contact pressure and contact angle with the surface of the carriage 1 roof, ensuring the continuity and effectiveness of the cleaning operation.

[0086] At the same time, the cleaning fluid delivery device 6 is activated, delivering the cleaning fluid to the top of the spiral cleaning device 5. Under the rotation of the spiral cleaning device 5, the cleaning fluid evenly covers the cleaning area, and performs spiral flushing and cleaning of the mud, oil and corrosion products attached to the top surface of the carriage 1, achieving efficient cleaning of the top surface of the carriage 1.

[0087] After the cleaning of the roof surface of carriage 1 is completed, the spiral cleaning device 5 stops operating, and the visual inspection device 7 starts working. The visual inspection device 7 acquires high-definition images of the cleaned roof surface of carriage 1, and the driver obtains real-time surface condition information of the roof of carriage 1 through the on-board display terminal, including but not limited to defects such as roof deformation and damage, weld cracks, aging and failure of waterproof strips, and metal corrosion and perforation, thereby achieving rapid and accurate judgment of the condition of the roof of carriage 1.

[0088] After the inspection is completed, the horizontal moving device 3 drives the movable component 4 and the spiral cleaning device 5 to retract horizontally into the storage cavity of the storage device 2. Simultaneously, the storage device 2 performs a reset action, with its working end retracting vertically, so that the horizontal moving device 3 and all auxiliary components are completely stored in the side of the carriage 1. The overall vehicle dimensions are restored to their original state, effectively preventing vehicle height issues caused by exposed devices and ensuring compliance with traffic regulations during transportation.

[0089] Through the coordinated operation of multiple mechanisms, including the lifting drive of the storage device 2, the longitudinal displacement of the horizontal moving device 3, the adaptive floating fit of the movable component 4, the rotation cleaning of the spiral cleaning device 5, the continuous liquid supply of the cleaning fluid delivery device 6, and the real-time imaging of the visual inspection device 7, the automation and mechanization of the top status detection of the carriage 1 are realized. This significantly improves the detection efficiency, eliminates the personal safety risks such as falls from heights and slips caused by manual climbing and inspection, and ensures effective monitoring of the sealing integrity of the carriage 1 during the transportation of high-value goods. It also reduces the risk of goods getting damp and damaged due to hidden damage to the top of the carriage 1, as well as the corresponding economic losses.

[0090] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of protection of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. An electric transport semi-trailer that facilitates driver observation of changes in the external cargo compartment, comprising a convenient observation device installed on the cargo compartment (1), characterized in that, The convenient observation device includes a storage device (2), a horizontal movement device (3), a movable component (4), a spiral cleaning device (5), a cleaning fluid delivery device (6), and a visual inspection device (7). The storage device (2) is installed on the side of the carriage (1), and the working end of the storage device (2) extends vertically upward; The horizontal moving device (3) is installed at the movable end of the storage device (2), and the horizontal moving device (3) moves horizontally along the top of the carriage (1); The movable component (4) is mounted on the horizontal moving device (3); The spiral cleaning device (5) is installed on the movable component (4) and is used to clean the top of the carriage (1); The cleaning fluid delivery device (6) is installed at the bottom of the carriage (1), and the output end of the cleaning fluid delivery device (6) is located above the spiral cleaning device (5); The visual inspection device (7) is installed on the horizontal moving device (3) and is used to observe the top of the carriage (1).

2. The electric transport semi-trailer according to claim 1, which facilitates the driver's observation of changes in the external cargo compartment, is characterized in that, The horizontal moving device (3) includes a limiting rail (31), a sliding mounting frame (32), and a synchronous drive device (33). Two limit rails (31) are provided and are symmetrically distributed on both sides of the carriage (1); The sliding mounting bracket (32) is slidably mounted on the limiting rail (31), and the bottom of the sliding mounting bracket (32) is provided with multiple moving rollers (321). The synchronous drive device (33) is mounted on the sliding mounting bracket (32) and is used to drive multiple moving rollers (321) to rotate synchronously.

3. The electric transport semi-trailer according to claim 1, which facilitates the driver's observation of changes in the external cargo compartment, is characterized in that... The movable component (4) includes a movable support (41), a first spring (42), and an abutment roller (43). The movable support (41) is slidably mounted on the horizontal moving device (3); Multiple first springs (42) are provided and are evenly distributed between the movable support (41) and the horizontal moving device (3); The abutment roller (43) is fixedly installed at the bottom of the movable bracket (41).

4. The electric transport semi-trailer according to claim 3, which facilitates the driver's observation of changes in the external cargo compartment, is characterized in that, The spiral cleaning device (5) includes a limiting connector (51), a first rotary driver (52), a rotating mounting shaft (53), and a spiral cleaning tool (54). Two limiting connectors (51) are provided and distributed on the movable bracket (41). The limiting connectors (51) are rotatably connected to the movable bracket (41). The first rotary driver (52) is fixedly mounted on the movable bracket (41), and the output end of the first rotary driver (52) is connected to the limit connector (51) in a transmission connection. The rotating mounting shaft (53) is set horizontally and installed between two limit connectors (51). The rotating mounting shaft (53) and the limit connectors (51) are detachably connected. The spiral cleaning device (54) is mounted on the rotating mounting shaft (53).

5. An electric transport semi-trailer for convenient driver observation of changes in the external cargo compartment as described in claim 4, characterized in that, One end of the rotating mounting shaft (53) is provided with a snap-fit ​​protrusion (531), and the other end of the rotating mounting shaft (53) away from the snap-fit ​​protrusion (531) is provided with a mounting hole. A movable snap block (532) is slidably installed inside the mounting hole, and a second spring is installed between the movable snap block (532) and the rotating mounting shaft (53).

6. An electric transport semi-trailer for convenient driver observation of changes in the external cargo compartment as described in claim 4, characterized in that, The spiral cleaning device (54) includes a mounting bushing (541), a spiral brush (542), and a spiral scraper (543). The mounting sleeve (541) is fitted onto the outside of the rotating mounting shaft (53), and the mounting sleeve (541) and the rotating mounting shaft (53) are detachably connected; The spiral brush (542) and spiral scraper (543) are spirally distributed on the outside of the mounting bushing (541), and the spiral brush (542) and spiral scraper (543) are spirally superimposed.

7. The electric transport semi-trailer according to claim 1, which facilitates the driver's observation of changes in the external cargo compartment, is characterized in that, The cleaning fluid delivery device (6) includes a delivery nozzle (61), a storage tank (62), a delivery pipe (64), and a pipe winding device; The delivery nozzle (61) is fixedly mounted on the movable component (4); The liquid storage tank (62) is fixedly installed at the bottom of the carriage (1), and a transfer pump (63) is provided on the liquid storage tank (62). The pipe winding device is installed on the storage device (2). The pipe winding device includes a mounting bracket (66), on which a pipe winding roller (67) is rotatably mounted. A second rotary driver (68) is installed on the mounting bracket (66). The output end of the second rotary driver (68) is connected to the pipe winding roller (67) in a transmission. The pipe winding device includes a pipe guide frame (65) installed on the storage device (2). One end of the conveying pipe (64) is connected to the conveying pump (63), and the other end of the conveying pipe (64) away from the conveying pump (63) passes through the pipe winding roller (67) and is connected to the conveying nozzle (61).

8. An electric transport semi-trailer according to claim 1, which facilitates the driver's observation of changes in the external cargo compartment, characterized in that, The visual inspection device (7) includes a housing and mounting sleeve (71), an adjusting mounting shaft (72), a camera, and a third rotary actuator (74). The storage and installation sleeve (71) is horizontally installed on the horizontal moving device (3), and the bottom of the storage and installation sleeve (71) is provided with an opening (711). The adjusting mounting shaft (72) is rotatably installed inside the storage mounting sleeve (71), and multiple cameras are mounted on the adjusting mounting shaft (72); The third rotary actuator (74) is fixedly mounted on the storage and mounting sleeve (71), and the output end of the third rotary actuator (74) is connected to the adjustment and mounting shaft (72) for transmission.

9. An electric transport semi-trailer for convenient driver observation of changes in the external cargo compartment as described in claim 1, characterized in that, The storage device (2) includes a mounting base (21), a lifting device (22), a lifting tray (23), and a docking slide rail (24). The mounting base (21) is fixedly installed on the side of the carriage (1); The lifting device (22) is installed inside the mounting base (21), and the lifting end of the lifting device (22) is equipped with a lifting plate (23). Two docking slide rails (24) are provided and fixedly installed on the lifting tray (23). The docking slide rails (24) are used to limit the storage of the horizontal moving device (3).

10. An electric transport semi-trailer for convenient driver observation of changes in the external cargo compartment as described in claim 9, characterized in that, The storage device (2) also includes a self-cleaning seat (25) installed on the mounting base (21). The self-cleaning seat (25) has a cleaning tank (251) inside, and the cleaning tank (251) is filled with combed brambles (252). The self-cleaning seat (25) has a water outlet channel inside, and a water outlet pipe (254) is also provided at the bottom of the self-cleaning seat (25). The end of the water outlet pipe (254) away from the self-cleaning seat (25) is connected to the cleaning liquid delivery device (6). The self-cleaning seat (25) has a sewage filter layer (255) inside.

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