Unmanned vehicle with container self-cleaning function

Abstract

The invention relates to the technical field of unmanned vehicles, in particular to an unmanned vehicle with a self-cleaning container, which comprises a vehicle body and a recording mechanism arranged on the vehicle body, the input mechanism comprises an input assembly arranged on the vehicle body, a lower cleaning assembly arranged on the input assembly and an upper cleaning assembly arranged on the input assembly. The lower cleaning assembly comprises four sets of lifting columns arranged on the conveying-in assembly in a lifting mode, cleaning pads rotationally arranged on the tops of the lifting columns and cleaning units arranged between the lifting columns and capable of automatically adjusting the cleaning range. Gravel at the bottom and on the outer surface of a container can be automatically cleaned, the cleaning effect is good, the surface of a conveying belt is prevented from being scratched, the service life of the conveying belt is prolonged, and the technical problems that the gravel on the container affects goods conveying of the conveying belt, the container slips on the conveying belt, and the surface of the conveying belt is easily scratched are solved.

Description

Technical Field

[0001] This invention relates to the field of unmanned vehicle technology, and more particularly to an unmanned vehicle with a self-cleaning cargo box. Background Technology

[0002] Driverless vehicles rely on the collaborative efforts of artificial intelligence, visual computing, radar, monitoring devices, and global positioning systems to enable computers to automatically and safely operate motor vehicles without any human intervention. The emergence of driverless delivery vehicles allows for real-time interconnection and interaction with community roads and real-world environments, enabling contactless and safe delivery, facilitating the smooth flow of smart logistics micro-circulation in the last mile, and effectively promoting the construction of smart communities.

[0003] However, in actual use, the inventors discovered that when goods are moved from the ground to the unmanned vehicle, the cardboard boxes may have grit attached to them. The grit not only affects the conveyor belt's transport of goods, causing the boxes to slip on the conveyor belt, but also easily scratches the surface of the conveyor belt. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an unmanned vehicle with a self-cleaning cargo box. This vehicle can automatically clean the sand and gravel on the bottom and outer surface of the cargo box, achieving a better cleaning effect, preventing slippage between the cargo box and the conveyor belt, improving the accuracy of cargo transportation, preventing scratches on the conveyor belt surface, and extending the service life of the conveyor belt. This solves the technical problem that sand and gravel on the cargo box not only affects the conveyor belt's ability to transport goods and causes the cargo box to slip on the conveyor belt, but also easily scratches the surface of the conveyor belt.

[0005] To address the above technical issues, the following technical solution is adopted: An unmanned vehicle with a self-cleaning cargo box includes a vehicle body and an input mechanism mounted on the vehicle body; The input mechanism includes an input component disposed on the vehicle body, a lower cleaning component disposed on the input component, and an upper cleaning component disposed on the input component; The lower cleaning assembly includes four sets of lifting columns that are raised and lowered on the input assembly, a cleaning pad that is rotatably mounted on the top of the lifting columns, and a cleaning unit that is positioned between the lifting columns and has a self-adjusting cleaning range. The cargo boxes are placed sequentially on the feeder assembly. The four sets of lifting columns are placed against the four corners of the cargo box bottom. The cleaning pad first cleans the sand and gravel on the four corners of the cargo box bottom, then lifts the cargo box. The cleaning unit cleans the sand and gravel on the bottom of the cargo box, the upper cleaning assembly cleans the sand and gravel on the top and sides of the cargo box, and the feeder assembly then transports the cargo box into the vehicle body for stacking.

[0006] Preferably, the input component includes: The input frame is located on the side of the vehicle body, and the input frame is provided with a drive chamber, a cleaning chamber and a collection chamber from top to bottom; The two sets of feeder belts are respectively disposed inside the cleaning chamber and inside the vehicle body.

[0007] Preferably, the cleaning unit includes: U-shaped frames, with two sets of U-shaped frames symmetrically arranged between the two lifting columns; A first horizontal drive unit is disposed between the two sets of U-shaped frames; Two sets of cleaning strips are symmetrically arranged on the output end of the first horizontal drive unit and are used to clean the feed belts at the bottom of the cargo box and the bottom of the cleaning chamber, respectively. The triangular cleaning plates are symmetrically and slidably disposed at both ends of the cleaning strip, and a first elastic element is provided between the triangular cleaning plates and the ends of the cleaning strip; The clearance strip hole is located at the bottom of the cleaning chamber and is used to avoid the lifting and lowering movements of the U-shaped frame, the first horizontal drive unit, the cleaning strip, and the triangular cleaning plate.

[0008] Preferably, the upper cleaning component includes: A hanging bracket, which is rotatably mounted on the top of the cleaning chamber; A second horizontal drive unit is mounted on the hanger. Two sets of cleaning rollers are symmetrically and rotatably mounted on the output end of the second horizontal drive unit and are used to clean the side of the cargo box. A first gear is provided at the upper end of each cleaning roller. Two sets of linear racks are symmetrically arranged on the hanger and are used to drive the first gear to rotate the cleaning roller. A sweeping bar, which is located at the middle position of the bottom of the hanger and is used to clean the top of the cargo box; A transmission unit is disposed at the top of the cleaning chamber and is used to drive a second horizontal drive unit to adjust the distance between the two sets of sweeping rollers.

[0009] Preferably, the transmission unit includes: The second gear is disposed on the input end of the second horizontal drive unit; A lifting ring, wherein the lifting ring is disposed at the top of the cleaning chamber; The first arc-shaped rack, four sets of the first arc-shaped rack are spaced apart along the circumferential direction on the inner wall of the lifting ring, and are used to drive the second gear to rotate forward; The second arc-shaped rack, four sets of the second arc-shaped rack are arranged at intervals along the circumferential direction on the inner wall of the lifting ring, and are respectively staggered above the first arc-shaped rack, for driving the second gear to reverse.

[0010] Preferably, the system also includes a temporary storage mechanism for sequentially stacking cartons. The temporary storage mechanism includes: A bracket, wherein the bracket is disposed inside the vehicle body; A conveyor belt is mounted on the support frame, and two sets of side plates are symmetrically arranged on the conveyor belt; Insert rods, a number of the insert rods are disposed through the side plate, one end of the insert rod is provided with a vacuum suction cup, a connecting plate is provided between the other ends of the insert rods in the same row, and a second elastic element is provided between the connecting plate and the side plate; A temporary storage plate is provided on the bracket and forms a temporary storage channel between it and the two sets of side plates. The temporary storage plate has an inlet at the top and an outlet at the bottom. The first limiting rail, two sets of the first limiting rail are symmetrically arranged on the bracket and located at the inlet horizontal line of the temporary storage guard plate, used to drive the connecting plate to move away from the vacuum suction cup to both sides through the plug rod; The support plate consists of two sets of symmetrical support plates that pass through the side plates respectively. A third elastic element is provided between the support plate and the side plates. An extension rod is provided on the support plate. The second limiting rails, two sets of the second limiting rails are symmetrically arranged on the bracket and located at the inlet position of the temporary storage guard plate, and are used to drive the extension rod to bring the two sets of support plates closer to each other.

[0011] Preferably, it also includes a transmission mechanism, which comprises: An outgoing conveyor belt is disposed inside the vehicle body and located at the outlet of the temporary storage guard plate; Safety light curtains, two sets of the safety light curtains are installed inside the vehicle body and are located on both sides of the transmission belt respectively; An electric door, which is vertically mounted on the vehicle body.

[0012] Preferably, it also includes a traction mechanism, which comprises: A drive wheel is disposed at the bottom of the vehicle body; The four sets of driven wheels are hinged to the bottom of the vehicle body via spring sets.

[0013] Preferably, the traction mechanism further includes a binocular depth camera mounted on the vehicle body for identifying obstacles.

[0014] Preferably, the traction mechanism also includes a single-line lidar and a monitoring camera mounted on the vehicle body.

[0015] The beneficial effects of this invention are: (1) In this invention, by setting up an input mechanism and a temporary storage mechanism, on the one hand, the sand and gravel on the bottom and outer surface of the cargo box can be automatically cleaned when the cargo box is loaded into the unmanned vehicle, so as to prevent the cargo box from carrying sand and gravel into the vehicle body, prevent the cargo box and the conveyor belt from slipping, improve the accuracy of conveying goods, prevent the surface of the conveyor belt from being scratched, and improve the service life of the conveyor belt; on the other hand, the cleaning range can be automatically adjusted for the cargo box, reduce the interference during the cleaning process, completely clean the bottom and outer surface of the cargo box, reduce cleaning dead corners, and improve the cleaning effect of the cargo box. (2) In this invention, by setting up a temporary storage mechanism and a transmission mechanism, on the one hand, the cargo boxes can be automatically stacked in sequence and released and transmitted in sequence, saving cargo box stacking space, transporting more goods, and improving the transportation efficiency of unmanned vehicles; on the other hand, each cargo box can be clamped and supported separately, the cargo box stacking is stable, the pressure of the upper cargo box on the lower cargo box is reduced, the lower cargo box is prevented from being crushed due to excessive pressure, the integrity of the cargo box is improved, and the safety of unmanned vehicles transporting goods is guaranteed.

[0016] In summary, this unmanned vehicle has the advantages of good self-cleaning effect, flexible movement, and long service life, making it particularly suitable for the field of unmanned vehicle technology. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an unmanned vehicle with a self-cleaning cargo box.

[0019] Figure 2 This is a schematic diagram of the data entry mechanism.

[0020] Figure 3 for Figure 2 The front view of the structure.

[0021] Figure 4 This is a schematic diagram of the structure of the cleaning component.

[0022] Figure 5 This is a schematic diagram of the cleaning unit.

[0023] Figure 6 This is a schematic diagram of the structure of the cleaning component.

[0024] Figure 7 This is a schematic diagram of the transmission unit.

[0025] Figure 8 This is a schematic diagram of the cleaning roller.

[0026] Figure 9 This is a schematic diagram of the temporary storage mechanism.

[0027] Figure 10 This is a schematic diagram of the structure of the first limiting track.

[0028] Figure 11 This is a structural schematic diagram of the bearing plate.

[0029] Figure 12 This is a schematic diagram of the transmission mechanism.

[0030] Figure 13 This is a schematic diagram of the traction mechanism.

[0031] Figure 14 This is a schematic diagram of the vehicle body in Embodiment 2 of the present invention. Detailed Implementation

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Example

[0033] like Figures 1-13 As shown, an unmanned vehicle with a self-cleaning cargo box includes a vehicle body 1, and an input mechanism 2, a temporary storage mechanism 3, a transmission mechanism 4 and a traction mechanism 5 installed on the vehicle body 1. The input mechanism 2 includes an input component 21 disposed on the vehicle body 1, a lower cleaning component 22 disposed on the input component 21, and an upper cleaning component 23 disposed on the input component 21; The lower cleaning assembly 22 includes four sets of lifting columns 221 that are raised and lowered on the input assembly 21, a cleaning pad 222 that is rotatably disposed on the top of the lifting columns 221, and a cleaning unit 223 disposed between the lifting columns 221 and self-adjusting the cleaning range.

[0034] It should be noted that the cargo box has uniform specifications and the same size, and is customized for the needs of unmanned vehicles. The cargo box has a cubic structure, and the four sets of lifting columns 221 just lift the four corners of the bottom of the cargo box. After the lifting columns 221 lift the cargo box upward, the cleaning rod 237 of the upper cleaning component 23 just contacts the top of the cargo box.

[0035] In this embodiment, by combining the input mechanism 2 and the temporary storage mechanism 3, on the one hand, the sand and gravel on the bottom and outer surface of the cargo box can be automatically cleaned when the cargo box is loaded into the unmanned vehicle, preventing the cargo box from carrying sand and gravel into the vehicle body, preventing the cargo box and the conveyor belt from slipping, improving the accuracy of transporting goods, preventing scratches on the surface of the conveyor belt, and increasing the service life of the conveyor belt; on the other hand, the cleaning range can be automatically adjusted for the cargo box, reducing interference during the cleaning process, completely cleaning the bottom and outer surface of the cargo box, reducing cleaning dead corners, and improving the cleaning effect of the cargo box.

[0036] In detail, firstly, the cargo boxes are placed sequentially on the input component 21. The four sets of lifting columns 221 are placed against the four corners of the cargo box bottom. The cleaning pad 222 first cleans the gravel on the four corners of the cargo box bottom, and then lifts the cargo box. The cleaning unit 223 cleans the gravel on the bottom of the cargo box, and the upper cleaning component 23 cleans the gravel on the top and sides of the cargo box. The input component 21 then transports the cargo boxes to the temporary storage mechanism 3 inside the vehicle body 1 for stacking. The cargo boxes are stacked layer by layer in the temporary storage mechanism 3. At the same time, the temporary storage mechanism 3 limits each cargo box from both sides to reduce the pressure of the upper cargo box on the lower cargo box. Then, the traction mechanism 5 drives the vehicle body 1 to transport the cargo boxes to the designated location. The temporary storage mechanism 3 then releases the cargo boxes sequentially onto the output mechanism 4. The output mechanism 4 outputs the cargo boxes sequentially to the outside of the vehicle body 1.

[0037] Furthermore, such as Figures 2-5 As shown, the input component 21 includes: The input frame 211 is disposed on the side of the vehicle body 1, and the input frame 211 is provided with a drive chamber 212, a cleaning chamber 213, and a collection chamber 214 from top to bottom; The two sets of input belts 215 are respectively installed inside the cleaning chamber 213 and inside the vehicle body 1. One set of input belts 215 inside the vehicle body 1 is located at the inlet position of the temporary guard plate 39. The cleaning unit 223 includes: Hydraulic component 2231 is disposed inside the collection chamber 214 and is used to drive four sets of lifting columns 221 to lift synchronously. A motor is embedded at the top of the lifting column 221 to drive the sweeping pad 222 to rotate. U-shaped frame 2232, two sets of the U-shaped frame 2232 are symmetrically arranged between the two lifting columns 221; The first horizontal drive unit 2233 is disposed between the two sets of U-shaped frames 2232. The first horizontal drive unit 2233 includes a lead screw, a threaded block, a limiting plate and a drive motor. The drive motor drives the lead screw to rotate and the limiting plate restricts the threaded block to move linearly along the lead screw. The two sets of cleaning strips 2234 are symmetrically arranged on the threaded block of the first horizontal drive unit 2233, and are used to clean the bottom of the cargo box and the bottom of the cleaning chamber 213 respectively. The triangular cleaning plate 2235, two sets of the triangular cleaning plates 2235 are symmetrically and slidably disposed at both ends of the cleaning strip 2234, and a first elastic member is provided between the triangular cleaning plate 2235 and the end of the cleaning strip 2234; The clearance strip hole 2236 is provided at the bottom of the cleaning chamber 213 and is used to avoid the lifting and lowering movements of the U-shaped frame 2232, the first horizontal drive unit 2233, the sweeping strip 2234 and the triangular sweeping plate 2235.

[0038] It should be noted that the cleaning chamber 213 is equipped with a closed door, and the collection chamber 214 is equipped with a chip removal door.

[0039] It is worth mentioning that the conveyor belt 215 moves the cargo box to the designated position inside the input frame 211, that is, the four corners of the bottom of the cargo box are respectively located at the positions of the four sets of lifting columns 221. After the lifting columns 221 lift the cargo box, the lifting columns 221, along with the U-shaped frame 2232, the first horizontal drive unit 2233, the cleaning strip 2234, and the triangular cleaning plate 2235, rise synchronously and disengage from the clearance strip hole 2236. At this time, the clearance strip hole 2236 is empty, and the grit cleaned by the cleaning strip 2234 and the triangular cleaning plate 2235 from the bottom of the cargo box and the bottom of the cleaning chamber 213 falls into the collection chamber 214 from the clearance strip hole 2236. The chip removal door of the collection chamber 214 is opened periodically to remove the grit.

[0040] In this embodiment, by cooperating with the input component 21 and the cleaning unit 223, the sand and gravel on the bottom of the cargo box, the bottom of the cleaning chamber 213 and the input belt 215 can be automatically cleaned and collected in a unified manner, thereby improving the sanitary environment inside the vehicle body 1.

[0041] In detail, the cargo box is placed on the feed conveyor 215, which carries the cargo box to a designated position inside the input frame 211. Specifically, the four corners of the cargo box's bottom are positioned at the locations of the four sets of lifting columns 221. A motor embedded at the top of each lifting column 221 drives the cleaning pad 222 to rotate, cleaning the sand and gravel from the four corners of the cargo box's bottom. Then, the cleaning pad 222 stops rotating, and the hydraulic components 2231 drive the four sets of lifting columns 221 to rise synchronously. The lifting columns 221 raise the cargo box to a designated height. Simultaneously, the lifting columns 221, along with the U-shaped frame 2232, the first horizontal drive unit 2233, the cleaning strips 2234, and the triangular cleaning plate 2235, rise synchronously to disengage from the clearance strip holes 2236. Then, the first horizontal drive unit 2233 drives the cleaning strips 223... 4. Horizontal movement: A set of cleaning strips 2234 cleans the gravel at the bottom of the cargo box. When the triangular cleaning plate 2235 passes the position of the lifting column 221, the lifting column 221 forces the triangular cleaning plate 2235 to slide relative to the cleaning strips 2234 and move closer to avoid the lifting column 221. After leaving the position of the lifting column 221, the triangular cleaning plate 2235 slides relative to the cleaning strips 2234 and returns to its original position under the elastic force of the first elastic element, which is sufficient to clean the gravel at the bottom edge of the cargo box. The gravel falls onto the bottom of the cleaning chamber 213 and the feed belt 215. Another set of cleaning strips 2234 cleans the gravel on the bottom of the cleaning chamber 213 and the feed belt 215 and sweeps the gravel to the position of the avoidance strip hole 2236, from which it falls into the collection chamber 214.

[0042] Furthermore, such as Figures 2-3 and Figures 6-8 As shown, the upper cleaning component 23 includes: Hanger 231 is rotatably mounted on the top of the cleaning chamber 213. A rotary motor 232 is installed inside the drive chamber 212 and is used to drive the hanger 231 to rotate. The second horizontal drive unit 233 is disposed on the hanger 231. The second horizontal drive unit 233 includes a bidirectional lead screw, two sets of threaded blocks and a limiting plate. The limiting plate restricts the threaded blocks to move linearly along the bidirectional lead screw. The two sets of cleaning rollers 234 are symmetrically and rotatably disposed at the bottom of the threaded block of the second horizontal drive unit 233, and are used to clean the side of the cargo box. The upper end of the cleaning roller 234 is provided with a first gear 235. Two sets of linear racks 236 are symmetrically arranged on the hanger 231 and are used to drive the first gear 235 to rotate the cleaning roller 234. A sweeping bar 237 is disposed at the middle position of the bottom of the hanger 231 and is used to clean the top of the cargo box; A transmission unit 238 is disposed on the top of the cleaning chamber 213 and is used to drive the second horizontal drive unit 233 to adjust the distance between the two sets of sweeping rollers 234. The transmission unit 238 includes: The second gear 2381 is disposed at one end of the bidirectional lead screw of the second horizontal drive unit 233; A lifting ring 2382 is disposed on the top of the cleaning chamber 213; The first arc-shaped rack 2383, four sets of the first arc-shaped rack 2383 are arranged at intervals along the circumferential direction on the inner wall of the lifting ring 2382, and are used to drive the second gear 2381 to rotate forward; The second arc-shaped rack 2384, four sets of the second arc-shaped rack 2384 are arranged at intervals along the circumferential direction on the inner wall of the lifting ring 2382, and are respectively staggered above the first arc-shaped rack 2383, for driving the second gear 2381 to reverse.

[0043] It should be noted that when the conveyor belt 215 carrying the cargo box moves to the position of the four sets of lifting columns 221, the two sets of cleaning rollers 234 are located on both sides of the cargo box, just like the mast. When the two sets of cleaning rollers 234 revolve around the center of the cargo box, the two sets of cleaning rollers 234 move away from each other and closer to each other intermittently, ensuring that the two sets of cleaning rollers 234 are always in contact with the side of the cargo box.

[0044] It is worth mentioning that after the lifting column 221 lifts the cargo box to a specified height, the upper cleaning component 23 works first, followed by the sweeping unit 223. The upper cleaning component 23 cleans the gravel that falls from the top and sides of the cargo box to the bottom of the cleaning chamber 213, and then the sweeping unit 223 works again to clean the gravel at the bottom of the cleaning chamber 213.

[0045] In this embodiment, the upper cleaning component 23 can automatically clean the sand and gravel on the top and sides of the cargo box, and the cleaning range can be adjusted for a more thorough cleaning.

[0046] In detail, after the lifting column 221 raises the cargo box to a specified height, the sweeping bar 237 contacts the top of the cargo box, and the two sets of sweeping rollers 234 contact the two sides of the cargo box. The rotary motor 232 drives the hanger 231 to rotate the two sets of sweeping rollers 234 around the center of the cargo box. The first arc-shaped rack 2383 and the second arc-shaped rack 2384 drive the second gear 2381 to rotate forward and backward alternately, so that the second horizontal drive unit 233 drives the two sets of sweeping rollers 234 to move away and closer intermittently, ensuring that the two sets of sweeping rollers 234 are always in contact with the sides of the cargo box. At the same time, during the intermittent movement of the two sets of sweeping rollers 234 away and closer, the linear rack 236 rotates the sweeping rollers 234 through the first gear 235, so that the sweeping rollers 234 clean the top of the cargo box, and the sweeping bar 237 cleans the top of the cargo box. After cleaning, the sweeping bar 237 and the sweeping rollers 234 are reset for the next use.

[0047] Furthermore, such as Figures 9-11 As shown, the temporary storage mechanism 3 includes: The bracket 31 is disposed inside the vehicle body 1; A conveyor belt 32 is mounted on the support 31. Two sets of side plates 33 are symmetrically arranged on the conveyor belt 32. A stepper motor 34 is mounted on the support 31 to drive the conveyor belt 32 to work. Insert rod 35, several sets of insert rod 35 are arranged through the side plate 33, one end of the insert rod 35 is provided with a vacuum suction cup 36, and the other ends of the insert rod 35 are provided with a connecting plate 37, and a second elastic member 38 is provided between the connecting plate 37 and the side plate 33. A temporary storage plate 39 is provided on the bracket 31 and forms a temporary storage channel between it and the two sets of side plates 33. The temporary storage plate 39 has an inlet at the top and an outlet at the bottom. The first limiting rail 391, two sets of the first limiting rail 391 are symmetrically arranged on the bracket 31 and located at the inlet horizontal line of the temporary storage guard plate 39, used to drive the connecting plate 37 to move away from the vacuum suction cup 36 to both sides through the insertion rod 35; Support plate 392, two sets of support plates 392 are symmetrical and respectively pass through the side plate 33, a third elastic element 393 is provided between the support plate 392 and the side plate 33, and an extension rod 394 is provided on the support plate 392; The second limiting rail 395, two sets of the second limiting rail 395 are symmetrically arranged on the bracket 31 and located at the inlet position of the temporary guard plate 39, for driving the extension rod 394 to bring the two sets of support plates 392 closer to each other.

[0048] It should be noted that the inlet belt 215 in the cleaning chamber 213 is located at the inlet position at the top of the temporary storage plate 39, and the outlet belt 41 is located at the outlet position at the bottom of the temporary storage plate 39.

[0049] It is worth mentioning that the second limiting track 395 is located at the inlet position of the temporary storage guard plate 39. That is, when the two sets of support plates 392 are at the inlet position of the top of the temporary storage guard plate 39, the two sets of support plates 392 move closer to each other under the drive of the second limiting track 395, which is used to temporarily support the first cargo box entering the temporary storage channel. As the conveyor belt 32 carries the cargo boxes down intermittently, the vacuum suction cups 36 on both sides suck up the side of each cargo box. The two sets of support plates 392 disengage from the second limiting track 395 and move away from each other to reset. Each cargo box is supported by the vacuum suction cups 36 on both sides. The first cargo box entering the temporary storage channel temporarily supports the second cargo box entering the temporary storage channel, and so on. The cargo boxes are stacked in the temporary storage channel, and the vacuum suction cups 36 on both sides support each cargo box respectively.

[0050] It is also worth mentioning that the first limiting track 391 is located at the inlet horizontal line of the temporary storage guard plate 39. That is, when the vacuum suction cup 36 is at the inlet position at the top of the temporary storage guard plate 39, the first limiting track 391 drives the connecting plate 37 to move the vacuum suction cup 36 away from both sides through the insert rod 35, so that the cargo box can enter the temporary storage channel from the inlet. As the conveyor belt 32 carries the cargo box down intermittently and sequentially, it disengages from the first limiting track 391. Driven by the second elastic element 38, the connecting plate 37 moves the insert rod 35 and the vacuum suction cup 36 closer to each other, so that the vacuum suction cup 36 sucks on the side of the cargo box.

[0051] It should also be noted that an existing vacuum generator is installed on the bracket 31, and the vacuum generator is connected to the connecting plate 37, the insertion rod 35, and the vacuum suction cup 36 via a flexible hose.

[0052] In this embodiment, the temporary storage mechanism 3 and the output mechanism 4 work together to automatically stack the cargo boxes in sequence and release and output them in sequence, saving cargo box stacking space, enabling the transport of more goods and improving the transportation efficiency of the unmanned vehicle. On the other hand, each cargo box can be clamped and supported separately, ensuring stable cargo box stacking, reducing the pressure of the upper cargo box on the lower cargo box, preventing the lower cargo box from being crushed due to excessive pressure, improving the integrity of the cargo box, and ensuring the safety of the unmanned vehicle transporting goods.

[0053] In detail, firstly, the two sets of support plates 392 stop at the inlet position at the top of the temporary storage guard plate 39. Driven by the second limit rail 395, they move closer to each other. When the vacuum suction cup 36 stops at the inlet position at the top of the temporary storage guard plate 39, the first limit rail 391 drives the connecting plate 37 to move the vacuum suction cup 36 away from both sides through the insertion rod 35. The conveyor belt 215 in the cleaning chamber 213 sends the first cargo box into the temporary storage channel. The two sets of support plates 392 temporarily support the first cargo box entering the temporary storage channel. As the conveyor belt 32 carries the cargo boxes down intermittently, the connecting plate 37, driven by the second elastic element 38, ... With the insertion rod 35 and vacuum suction cup 36 approaching each other, the vacuum suction cup 36 adheres to the side of the cargo box. The two sets of support plates 392 disengage from the second limit track 395 and reset to their original positions. The first cargo box is supported by the vacuum suction cups 36 on both sides. The first cargo box entering the temporary storage channel temporarily supports the second cargo box entering the temporary storage channel, and so on. The cargo boxes are stacked in the temporary storage channel, with the vacuum suction cups 36 on both sides supporting each cargo box. When a cargo box needs to be transferred out, it is released from bottom to top. The vacuum generator controls the vacuum suction cups 36 to release the cargo boxes in sequence, and the cargo boxes fall onto the conveyor belt 41 in sequence.

[0054] Furthermore, such as Figure 12 As shown, the transmission mechanism 4 includes: The conveyor belt 41 is disposed inside the vehicle body 1 and located at the outlet position of the temporary storage guard plate 39. Safety light curtains, two sets of the safety light curtains are set inside the vehicle body 1 and are located on both sides of the conveyor belt 41 respectively. The structure and function of the safety light curtains are existing technologies and will not be described in detail. This allows the conveyor belt 41 to detect whether the cargo box has been completely conveyed. Electric door 42 is vertically mounted on the vehicle body 1. The structure and function of electric door 42 are existing technologies and will not be described in detail. Electric door 42 is designed vertically, which saves a lot of space and does not occupy external space.

[0055] In this embodiment, the delivery mechanism 4 can sequentially deliver the cargo boxes and detect the output status of the cargo boxes on the delivery belt 41.

[0056] In detail, after the unmanned vehicle arrives at the designated location, the temporary storage mechanism 3 releases the cargo box onto the conveyor belt 41, the electric door 42 opens, the conveyor belt 41 transports the cargo box to be picked up, and the safety light curtain detects whether the cargo box has been completely conveyed.

[0057] Furthermore, such as Figure 13 As shown, the traction mechanism 5 includes: A drive wheel 51 is disposed at the bottom of the vehicle body 1; Driven wheels 52, four sets of driven wheels 52 are hinged to the bottom of the vehicle body 1 via spring assembly 53. It should be noted that the four driven wheels 52 use A-type wheels, which solve four technical problems compared to using ordinary universal wheels: 1. Uncontrolled direction → Precisely programmable movement. Universal wheels rely on a rotating bracket for passive steering, and ground obstructions or load changes can cause them to deviate. A-type wheels integrate the steering function into small rollers inside the wheel hub, and the precise displacement and angle can be directly calculated using differential motor control, no longer affected by the random swaying of the bracket; 2. Large turning radius → Ability to turn around on the spot. Universal wheels require space for the bracket to swing when turning, while A-type wheels have a large turning radius. A-type wheels do not require a rotating bracket, allowing the autonomous vehicle to turn around its own geometric center; 3. 60-degree rotation in place, allowing for flexible movement even in narrow passages; 3. Larger structural volume → more compact chassis, because casters require additional rotating supports, and a swing buffer must be left around them during assembly. Fulais wheels are directionally installed, without external swing parts, allowing for a thinner and more compact chassis; 4. Prone to jamming and high wear → more stable operation and longer lifespan. The most common failure point of casters is that the swivel joint gets stuck with foreign objects or wears out and fails. Fulais wheels eliminate this mechanical joint, using rollers for lateral sliding, preventing support jamming or wheel interference, significantly improving lifespan in low-speed inspection, warehouse AGV and other scenarios.

[0058] It is worth mentioning that the driven wheel 52 is installed on the symmetrical parallel spring assembly 53 on both sides, and the force is transmitted from front to back by springs. Therefore, when the pressure of the wheel on the ground changes due to special terrain changes, the other wheel on the same side can quickly adapt to the change, and it will also cause the shock absorption system on the other side to make adaptive adjustments.

[0059] In this embodiment, thanks to the traction mechanism 5, the unmanned vehicle moves flexibly, has good shock absorption, and operates stably. Example

[0060] like Figure 14 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows: Furthermore, such as Figure 14 As shown, the traction mechanism 5 also includes a binocular depth camera 54 mounted on the vehicle body 1 for identifying obstacles; The traction mechanism 5 also includes a single-line lidar 55 and a monitoring camera 56 mounted on the vehicle body 1.

[0061] It is worth mentioning that the structure and function of the binocular depth camera 54 are existing technologies, so they will not be described in detail here. The binocular depth camera, with the addition of AI algorithms, can effectively avoid radar misjudgment caused by suspended slender objects, and can automatically identify obstacles such as people or animals that move flexibly.

[0062] It is also worth mentioning that the structure and function of the single-line lidar 55 are existing technologies, so they will not be elaborated here. It adopts a low-cost single-line lidar and achieves the same effect as multi-line lidar by relying on algorithms.

[0063] It should be noted that the structure and function of the surveillance camera 56 are existing technologies and will not be described in detail. The surveillance camera 56 uses an excellent signaling server and only uses data when needed.

[0064] First, the cargo boxes are placed sequentially on the infeed assembly 21. The four sets of lifting columns 221 are placed against the four corners of the cargo box bottom. The cleaning pad 222 first cleans the gravel on the four corners of the cargo box bottom, and then lifts the cargo box. The cleaning unit 223 cleans the gravel on the bottom of the cargo box, and the upper cleaning assembly 23 cleans the gravel on the top and sides of the cargo box. The infeed assembly 21 then transports the cargo boxes to the temporary storage mechanism 3 inside the vehicle body 1 for stacking. The cargo boxes are stacked layer by layer in the temporary storage mechanism 3. At the same time, the temporary storage mechanism 3 limits each cargo box from both sides to reduce the pressure of the upper cargo box on the lower cargo box. Then, the traction mechanism 5 drives the vehicle body 1 to transport the cargo boxes to the designated location. The temporary storage mechanism 3 then releases the cargo boxes sequentially onto the output mechanism 4. The output mechanism 4 outputs the cargo boxes sequentially to the outside of the vehicle body 1.

[0065] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0066] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the quantity.

[0067] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An unmanned vehicle with a self-cleaning cargo box, comprising a vehicle body, characterized in that, It also includes an input mechanism mounted on the vehicle body; the input mechanism includes an input component mounted on the vehicle body, a lower cleaning component mounted on the input component, and an upper cleaning component mounted on the input component; the lower cleaning component includes four sets of lifting columns that are raised and lowered on the input component, a cleaning pad that is rotatably mounted on the top of the lifting columns, and a cleaning unit that is mounted between the lifting columns and has a self-adjusting cleaning range; The cargo boxes are placed sequentially on the feeder assembly. The four sets of lifting columns are placed against the four corners of the cargo box bottom. The cleaning pad first cleans the sand and gravel on the four corners of the cargo box bottom, then lifts the cargo box. The cleaning unit cleans the sand and gravel on the bottom of the cargo box, the upper cleaning assembly cleans the sand and gravel on the top and sides of the cargo box, and the feeder assembly then transports the cargo box into the vehicle body for stacking.

2. The unmanned vehicle with a self-cleaning cargo box according to claim 1, characterized in that, The input component includes: an input frame disposed on the side of the vehicle body, the input frame having a drive chamber, a cleaning chamber, and a collection chamber arranged sequentially from top to bottom; and input belts, two sets of input belts respectively disposed inside the cleaning chamber and inside the vehicle body.

3. The unmanned vehicle with a self-cleaning cargo box according to claim 2, characterized in that, The cleaning unit includes: a U-shaped frame, with two sets of U-shaped frames symmetrically arranged between the two lifting columns; a first horizontal drive unit, arranged between the two sets of U-shaped frames; cleaning strips, with two sets of cleaning strips symmetrically arranged on the output end of the first horizontal drive unit, and used to clean the bottom of the cargo box and the bottom of the cleaning chamber respectively; triangular cleaning plates, with two sets of triangular cleaning plates symmetrically and slidably arranged at both ends of the cleaning strips, and a first elastic element provided between the triangular cleaning plates and the ends of the cleaning strips; and clearance strip holes, which are opened at the bottom of the cleaning chamber and used to avoid the lifting and lowering movements of the U-shaped frame, the first horizontal drive unit, the cleaning strips, and the triangular cleaning plates.

4. The unmanned vehicle with a self-cleaning cargo box according to claim 3, characterized in that, The upper cleaning assembly includes: a hanger rotatably mounted on the top of the cleaning chamber; a second horizontal drive unit mounted on the hanger; two sets of cleaning rollers symmetrically and rotatably mounted on the output end of the second horizontal drive unit, used for cleaning the sides of the cargo box, with a first gear at the upper end of each cleaning roller; two sets of linear racks symmetrically mounted on the hanger, used to drive the first gear to rotate the cleaning rollers; a cleaning rod positioned at the middle of the bottom of the hanger, used for cleaning the top of the cargo box; and a transmission unit mounted on the top of the cleaning chamber, used to drive the second horizontal drive unit to adjust the distance between the two sets of cleaning rollers.

5. The unmanned vehicle with a self-cleaning cargo box according to claim 4, characterized in that, The transmission unit includes: a second gear, which is disposed on the input end of the second horizontal drive unit; and a lifting ring, which is disposed on the top of the cleaning chamber. The first arc-shaped rack, four sets of the first arc-shaped rack are spaced apart along the circumferential direction on the inner wall of the lifting ring, and are used to drive the second gear to rotate forward; the second arc-shaped rack, four sets of the second arc-shaped rack are spaced apart along the circumferential direction on the inner wall of the lifting ring, and are respectively staggered above the first arc-shaped rack, and are used to drive the second gear to rotate in reverse.

6. The unmanned vehicle with a self-cleaning cargo box according to claim 1, characterized in that, It also includes a temporary storage mechanism for stacking cargo boxes sequentially. The temporary storage mechanism includes: a support frame disposed inside the vehicle body; a conveyor belt mounted on the support frame, with two sets of side plates symmetrically arranged on the conveyor belt; insertion rods, with several sets of insertion rods extending through the side plates, each insertion rod having a vacuum suction cup at one end and a connecting plate between the other ends of the insertion rods, with a second elastic element between the connecting plate and the side plates; and a temporary storage guard plate mounted on the support frame, forming a temporary storage channel with the two sets of side plates, with the top of the temporary storage guard plate... The system includes an inlet and an outlet at the bottom of the temporary storage plate; two sets of first limiting rails are symmetrically arranged on the support and located at the inlet level of the temporary storage plate, used to drive the connecting plate to move away from the sides via the insert rod and vacuum suction cup; two sets of support plates are symmetrically arranged and respectively penetrate the side plates, with a third elastic element between the support plate and the side plate, and an extension rod on the support plate; and two sets of second limiting rails are symmetrically arranged on the support and located at the inlet position of the temporary storage plate, used to drive the extension rod to move the two sets of support plates closer to each other.

7. The unmanned vehicle with a self-cleaning cargo box according to claim 6, characterized in that, It also includes a transmission mechanism, which includes: a transmission belt disposed inside the vehicle body and located at the exit position of the temporary storage guard plate; two sets of safety light curtains disposed inside the vehicle body and respectively located on both sides of the transmission belt; and an electric door vertically disposed on the vehicle body.

8. The unmanned vehicle with a self-cleaning cargo box according to claim 1, characterized in that, It also includes a traction mechanism, which comprises: a drive wheel, which is disposed at the bottom of the vehicle body; and driven wheels, four sets of driven wheels being hinged to the bottom of the vehicle body via spring sets.

9. The unmanned vehicle with a self-cleaning cargo box according to claim 8, characterized in that, The traction mechanism also includes a binocular depth camera mounted on the vehicle body for identifying obstacles.

10. The unmanned vehicle with a self-cleaning cargo box according to claim 8, characterized in that, The traction mechanism also includes a single-line lidar and a monitoring camera mounted on the vehicle body.

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