An unmanned truck

Abstract

The embodiment of the present application relates to the unmanned technology field, and particularly discloses an unmanned truck, which comprises a carriage, a conveying belt and a clamping mechanism, the conveying belt is fixed to the bottom surface of the carriage, the conveying belt is used for conveying or carrying a transport shelf, the clamping mechanism is installed on the inner wall of the carriage, the clamping mechanism can move relative to the conveying belt, and the clamping mechanism is used for clamping the transport shelf on the conveying belt. Through the above mode, the embodiment of the present application can realize automatic loading and unloading of the transport shelf of the unmanned truck, so that unmanned distribution of goods is realized.

Description

Technical Field

[0001] This invention relates to the field of autonomous driving technology, and in particular to an unmanned truck. Background Technology

[0002] With the rapid development of autonomous driving technology, the application of driverless vehicles is becoming more and more widespread, such as unmanned trucks used in the logistics field to achieve unmanned delivery of goods.

[0003] However, in the process of implementing the embodiments of the present invention, the inventors discovered that: currently, enterprises usually use transport racks to store and transfer goods. When the unmanned truck arrives at the designated location, the truck door is opened manually, and the transport racks are loaded and unloaded manually or with the help of tools. Therefore, unmanned trucks cannot achieve automated loading and unloading of transport racks. Summary of the Invention

[0004] The main technical problem solved by the embodiments of the present invention is to provide an unmanned truck that enables automated loading and unloading of transport racks, thereby achieving unmanned delivery of goods.

[0005] To solve the above-mentioned technical problems, one technical solution adopted by the present invention is: to provide an unmanned freight truck, including a cargo compartment, a conveyor belt and a clamping mechanism, wherein the conveyor belt is fixed to the bottom surface of the cargo compartment and is used to transport or carry transport shelves, the clamping mechanism is installed on the inner wall of the cargo compartment and is movable relative to the conveyor belt, and the clamping mechanism is used to clamp the transport shelves on the conveyor belt.

[0006] Optionally, the clamping mechanism includes a driving device, a transmission mechanism, and a clamping member. The transmission mechanism is connected between the driving device and the clamping member and is fixedly installed on the inner wall of the carriage. The driving device drives the clamping member to move through the transmission mechanism to clamp the transport rack on the conveyor belt.

[0007] Optionally, the clamping mechanism includes a driving device, a transmission mechanism, and a clamping member. The transmission mechanism is connected between the driving device and the clamping member. The driving device is fixedly installed on the inner wall of the carriage. The driving device drives the clamping member to move through the transmission mechanism to clamp the transport rack on the conveyor belt.

[0008] Optionally, the transmission mechanism includes a first mounting plate, a second mounting plate, a connecting rod, a connecting rod, and a rotating arm. The first mounting plate and the second mounting plate are connected to the inner wall of the carriage. One end of the connecting rod is rotatably connected to the first mounting plate and the second mounting plate. One end of the connecting rod is rotatably connected to the driving device and the other end of the connecting rod. The rotating arm is rotatably connected to the other end of the connecting rod. One end of the rotating arm is rotatably connected to the first mounting plate and the second mounting plate. The other end of the rotating arm is connected to the clamping member.

[0009] Optionally, the conveyor belt includes a conveying mechanism and a base frame, the base frame being fixed to the bottom surface of the carriage, and the conveying mechanism being disposed on the base frame.

[0010] Optionally, the number of the conveying mechanisms is at least two, and at least two of the conveying mechanisms are spliced ​​together on the base frame;

[0011] The number of clamping mechanisms is at least four, and the at least four clamping mechanisms are arranged in a half-opposite manner on the two inner walls of the carriage, with two opposing clamping mechanisms corresponding to one of the conveying mechanisms.

[0012] Optionally, the unmanned truck also includes a door, and the cargo compartment is provided with a first opening, with the door located at the first opening.

[0013] Optionally, the door is provided with a transparent viewing window.

[0014] Optionally, there are four first openings and four doors. The four first openings are arranged in half on two sides of the carriage, and one door is located in one of the first openings.

[0015] Optionally, the unmanned truck also includes a roller shutter door mechanism, with a second opening at one end of the truck body, and the roller shutter door mechanism positioned at the second opening.

[0016] In this embodiment of the invention, the unmanned truck includes a cargo compartment, a conveyor belt, and a clamping mechanism. The conveyor belt is fixed to the bottom surface of the cargo compartment and is used to transport or carry transport shelves. The clamping mechanism is installed on the inner wall of the cargo compartment and is movable relative to the conveyor belt. The clamping mechanism is used to clamp the transport shelves on the conveyor belt. This enables automated loading and unloading of transport shelves by the unmanned truck, thereby achieving unmanned goods delivery. Attached Figure Description

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

[0018] Figure 1 This is a structural schematic diagram of the unmanned truck provided in an embodiment of the present invention;

[0019] Figure 2 This is an exploded view of the structure of the unmanned truck provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the conveyor belt structure in the unmanned truck provided in an embodiment of the present invention;

[0021] Figure 4 This is an exploded view of the conveyor mechanism in the conveyor belt of the unmanned truck provided in an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of the first positioning component in the conveyor belt of the unmanned truck provided in an embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the second positioning component in the conveyor belt of the unmanned truck provided in an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the transition component in the conveyor belt of the unmanned truck provided in an embodiment of the present invention;

[0025] Figure 8 This is a schematic diagram of the structure of the third positioning component in the conveyor belt of the unmanned truck provided in an embodiment of the present invention;

[0026] Figure 9 This is a schematic diagram of the clamping mechanism in the unmanned truck provided in an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 100. Unmanned freight truck; 1. Vehicle body; 2. Cargo compartment; 21. First opening; 22. Second opening; 3. Conveyor belt; 31. Underframe; 32. Conveying mechanism; 321. Conveying assembly; 3211. First frame; 3212. First conveyor component; 322. Power assembly; 3221. Fixing frame; 3222. Motor; 3223. Rotating shaft; 323. Cover plate; 33. First positioning assembly; 331. First fixed seat; 332. First power unit; 333. First limiting plate; 334. First slider; 335. First guide rail; 34. Second positioning assembly; 341. Second fixed seat; 342. Second power unit 343. Second limiting plate; 344. Second slider; 345. Second guide rail; 35. Transition component; 351. Second frame; 352. Second conveying component; 36. Third positioning component; 361. Third fixed seat; 362. Third power unit; 363. Support seat; 364. Third limiting plate; 365. Third slider; 366. Third guide rail; 4. Clamping mechanism; 41. Drive device; 42. Transmission mechanism; 421. First mounting plate; 422. Second mounting plate; 423. Connecting rod; 424. Connecting rod; 425. Rotating arm; 43. Clamping component; 5. Door; 51. Transparent window; 6. Roller shutter door mechanism. Detailed Implementation

[0029] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0031] Please see Figure 1 and Figure 2The unmanned freight truck 100 includes a body 1, a cargo compartment 2, a conveyor belt 3, a clamping mechanism 4, a door 5, and a roller shutter mechanism 6. The cargo compartment 2 is fixed to the body 1. The conveyor belt 3 is fixed to the bottom of the cargo compartment 2 and is used to transport or support transport racks. The clamping mechanism 4 is installed on the inner wall of the cargo compartment 2 and can move relative to the conveyor belt 3. The clamping mechanism 4 is used to clamp the transport racks on the conveyor belt 3 to prevent the transport racks from moving during transportation and causing goods to fall off. The door 5 is located in the cargo compartment 2, allowing users to observe the interior of the cargo compartment 2 and open it to enter. The roller shutter mechanism 6 is located in the cargo compartment 2, separating or connecting the interior space of the cargo compartment 2 with the outside. When the cargo compartment 2 is connected to the outside, the conveyor belt 3 connects with the conveyor belt on the platform to automatically transfer the transport racks.

[0032] For carriage 2 mentioned above, please refer to Figure 2 The carriage 2 is provided with a first opening 21 and a second opening 22. The first opening 21 is located on the side of the carriage 2 and is used for the installation of the door 5. The second opening 22 is located at one end of the carriage 2. A roller shutter mechanism 6 is located at the second opening 22 and is used to open or close the second opening 22.

[0033] For conveyor belt 3 mentioned above, please refer to Figure 3 The conveyor belt 3 includes a base frame 31, a conveying mechanism 32, a first positioning component 33, and a second positioning component 34. The base frame 31 is fixed to the bottom surface of the carriage 2. The conveying mechanism 32 is fixed to the base frame 31 and is used to convey and support the transport racks. The first positioning component 33 and the second positioning component 34 are respectively disposed at both ends of the conveying mechanism 32. The first positioning component 33 and the second positioning component 34 are movable relative to the conveying mechanism 32. The first positioning component 33 and the second positioning component 34 are used to clamp and limit the transport racks on the conveying mechanism 321 to prevent the transport racks from shifting during transportation.

[0034] For the aforementioned transmission mechanism 32, please refer to Figure 4 The conveying mechanism 32 includes a conveying component 321 and a power component 322. The conveying component 321 is mounted on the base frame 31, and a portion of the conveying component 321 is rotatable relative to the base frame 31. The power component 322 is mounted on the base frame 31 and is connected to a portion of the conveying component 321. The power component 322 is used to drive the rotation of a portion of the conveying component 321.

[0035] The conveying assembly 321 described above includes a first frame 3211 and a first conveyor 3212. The first frame 3211 is fixed to the base frame 31. The first conveyor 3212 is disposed on the first frame 3211 and is rotatable relative to the first frame 3211. The first conveyor 3212 is used to convey and carry the transport rack. In some embodiments, the first conveyor 3212 is a belt, but it can also be other structures, such as a conveyor mesh chain, a conveyor chain plate, etc., as long as the first conveyor 3212 can convey and carry the transport rack.

[0036] The power assembly 322 includes a mounting frame 3221, a motor 3222, and a rotating shaft 3223. The mounting frame 3221 is fixed to the base frame 31. The motor 3222 is mounted on the mounting frame 3221. The rotating shaft 3223 is connected to the motor 3222 and is connected to the first conveyor 3212 via a rotating wheel. The motor 3222 drives the rotating shaft 3223 to rotate, causing the first conveyor 3212 to rotate relative to the first frame 3211.

[0037] For the first positioning component 33 mentioned above, please refer to Figure 5 The first positioning component 33 includes a first fixed base 331, a first power device 332, a first limiting plate 333, a first slider 334, and a first guide rail 335. The first fixed base 331 is fixed to the surface of one end of the first frame 3211. The first power device 332 is connected to the first fixed base 331 and the first limiting plate 333, and is used to drive the first limiting plate 333 to move relative to the conveying component 321. The first limiting plate 333 is used to clamp the transport rack on the first conveyor 3212. The first slider 334 is connected to the first limiting plate 333 and the first guide rail 335, and can slide along the first guide rail 335. The first guide rail 335 is fixed to the surface of one end of the first frame 3211, and the first slider 334 and the first guide rail 335 make the movement of the first limiting plate 333 smoother. In some embodiments, the first power device 332 is a cylinder, but it can also be other structures, such as an electric cylinder, a linear motor, etc.

[0038] For the second positioning component 34 mentioned above, please refer to Figure 6The second positioning component 34 includes a second fixed base 341, a second power unit 342, a second limiting plate 343, a second slider 344, and a second guide rail 345. The second fixed base 341 is fixed to the surface of the other end of the first frame 3211. The second power unit 342 is connected to the second fixed base 341 and the second limiting plate 343, and is used to drive the second limiting plate 343 to move relative to the conveying component 321. When the second limiting plate 343 protrudes from the first conveyor 3212, and when the first limiting plate 333 protrudes from the first conveyor 3212, the second limiting plate 343 and the first limiting plate 333 are used to clamp the transport rack on the first conveyor 3212. The second slider 344 is connected to the second limiting plate 343 and the second guide rail 345, and the second slider 344 can slide along the second guide rail 345. The second guide rail 345 is fixed to the surface of the other end of the first frame 3211. The second slider 344 and the second guide rail 345 make the movement of the second limiting plate 343 smoother. In some embodiments, the second power device 342 is a cylinder, but the second power device 342 can also be other structures, such as an electric cylinder, a linear motor, etc.

[0039] In some embodiments, the number of the first conveying component 3212, the first frame 3211, the first positioning component 33, and the second positioning component 34 are both two. The conveying component 321 also includes a cover plate 323. The two first frames 3211 are fixed to both sides of the base frame 31. The two sides of the cover plate 323 are respectively fixed to the two first frames 3211 and cover the gap between the two first frames 3211 to prevent foreign objects from falling into the gap between the two first frames 3211. A first conveying component 3212 is disposed on a first frame 3211, and a first positioning component 33 and a second positioning component 34 are respectively disposed at both ends of a first frame 3211. However, the number of the first positioning component 33 and the second positioning component 34 can be set according to actual needs, as long as at least one of the first positioning component 33 and the second positioning component 34 is required.

[0040] In some embodiments, the number of conveying mechanisms 32 is at least two, and the conveyor belt 3 further includes at least one transition component 35 and at least one third positioning component 36. At least two conveying mechanisms 32 are spliced ​​together on the base frame 31. The transition component 35 is disposed on the base frame 31, and its two ends are connected to two adjacent conveying mechanisms 32. The transition component 35 is used to prevent the transport rack from falling into the gap between the two adjacent conveying mechanisms 32 during conveying. The two ends of a third positioning component 36 are respectively disposed on two adjacent conveying mechanisms 32. The third positioning component 36 is movable relative to the conveying mechanism 32. At this time, a first positioning component 33 and a second positioning component 34 are disposed opposite each other at one end of the first and last conveying mechanisms 32. The first positioning component 33, the second positioning component 34, and the third positioning component 36 are used to clamp the transport rack on the conveying mechanism 32. Furthermore, in some embodiments, the number of base frames 31 is at least two. At least two base frames 31 are spliced ​​together, and one conveying mechanism 32 is disposed on one base frame 31.

[0041] For the aforementioned transition component 35, please refer to Figure 7 The transition component 35 includes a second frame 351 and a second conveyor 352. The second frame 351 is fixed to the base frame 31. The second conveyor 352 is disposed on the second frame 351 and is movable relative to the second frame 351. The second conveyor 352 is used to carry and transport the transport rack during the transport process, preventing the transport rack from falling into the gap between two adjacent first conveyors 3212. In some embodiments, the second conveyor 352 is a belt, but it can also be other structures, such as a conveyor mesh chain, conveyor chain plate, etc., as long as the second conveyor 352 can transport and carry the transport rack.

[0042] For the third positioning component 36 mentioned above, please refer to Figure 8The third positioning component 36 includes a third fixed base 361, a third power unit 362, a support base 363, two third limiting plates 364, two third sliders 365, and two third guide rails 366. The two ends of the third fixed base 361 are respectively fixed to the surfaces of two adjacent first frames 3211. The third power unit 362 is connected to the third fixed base 361 and the support base 363. The two ends of the support base 363 are respectively connected to the two third sliders 365. The two third limiting plates 364 are respectively connected to the two ends of the support base 363, and the two third limiting plates 364 are arranged in a mirror-symmetrical manner. The third power unit 362 is used to drive the two third limiting plates 364 to move relative to the conveying component 321, and the third limiting plates 364 are used to clamp the transport rack on the first conveyor 3212. One third slider 365 is connected to one third guide rail 366, and the third slider 365 can slide relative to the third guide rail 366. Two third guide rails 366 are respectively fixed to the surfaces of two adjacent first frames 3211. The two third sliders 365 and the two third guide rails 366 make the movement of the two third limiting plates 364 smoother. In some embodiments, the third power device 362 is a cylinder, but the third power device 362 can also be other types, such as an electric cylinder, a linear motor, etc.

[0043] For the clamping mechanism 4 mentioned above, please refer to Figure 9 The clamping mechanism 4 includes a drive unit 41, a transmission mechanism 42, and a clamping member 43. The transmission mechanism 42 is connected between the drive unit 41 and the clamping member 43. The transmission mechanism 42 is fixedly installed on the inner wall of the carriage 2. The drive unit 41 drives the clamping member 43 to move through the transmission mechanism 42, which is used to clamp the transport rack on the conveyor belt 3 to prevent the transport rack from moving during transportation and thus preventing the goods from falling off the transport rack. In some embodiments, the drive unit 41 is a cylinder, but the third power unit 362 can also be other structures, such as an electric cylinder, a linear motor, etc.

[0044] The transmission mechanism 42 includes a first mounting plate 421, a second mounting plate 422, a connecting rod 423, a connecting rod 424, and a rotating arm 425. The first mounting plate 421 and the second mounting plate 422 are fixedly mounted on the inner wall of the carriage 2, and the drive device 41 is rotatably connected to the first mounting plate 421 and the second mounting plate 422. One end of the connecting rod 423 is rotatably connected to the first mounting plate 421 and the second mounting plate 422. One end of the connecting rod 424 is rotatably connected to the drive device 41 and the other end of the connecting rod 423. The rotating arm 425 is rotatably connected to the other end of the connecting rod 424, one end of the rotating arm 425 is rotatably connected to the first mounting plate 421 and the second mounting plate 422, and the other end of the rotating arm 425 is connected to the clamping member 43. The drive device 41 drives the connecting rod 424 to rotate, thereby rotating the connecting rod 423 and the rotating arm 425, and consequently moving the clamping member 43. When the clamping member 43 is in the preset first position, the clamping member 43 clamps the transport shelf on the conveyor belt 3. When the clamping member 43 is in the preset second position, the clamping member 43 separates from the transport shelf on the conveyor belt 3.

[0045] It is understandable that the first mounting plate 421 and the second mounting plate 422 can be fixed to the inner wall of the carriage 2 in other ways, such as the first mounting plate 421 and the second mounting plate 422 being rotatably connected to the inner wall of the carriage 2. At the same time, the clamping mechanism 4 also includes a fixed seat, which is fixed to the inner wall of the carriage 2, and the driving device 41 is fixedly installed on the fixed seat.

[0046] It is understood that the clamping mechanism 4 is not limited to the above structure; it can be other structures, such as a motor, gear, rack, guide rail, and clamping member 43. The motor is fixedly installed on the inner wall of the carriage 2. The gear is connected to the motor. The rack is mounted on the guide rail and can move relative to it, meshing with the gear. The guide rail is fixedly installed on the inner wall of the carriage 2. The clamping member 43 is connected to one end of the rack. The motor drives the gear to rotate, which in turn drives the rack to move the clamping member 43. When the clamping member 43 is in a preset first position, it clamps the transport shelf on the conveyor belt 3; when it is in a preset second position, it separates from the transport shelf on the conveyor belt 3.

[0047] In some embodiments, the surface of the clamping member 43 facing the transport rack is provided with an anti-slip structure, such as a grid structure or a honeycomb structure. The anti-slip structure is used to increase the friction of the surface of the clamping member 43, which can clamp the transport rack more stably.

[0048] In some embodiments, the number of clamping mechanisms 4 is at least four. At least four clamping mechanisms 4 are arranged in a half-opposite manner on two inner walls of the carriage 2. Two opposing clamping mechanisms 4 correspond to a conveying mechanism 32. The clamping members 43 of the two opposing clamping mechanisms 4 respectively clamp the two sides of the transport rack on the conveying mechanism 32 to prevent the transport rack from moving to the sides during transportation.

[0049] For the aforementioned door 5, please refer to Figure 2 The door 5 is located at the first opening 21 and is used to close or open the first opening 21. The door 5 is equipped with a transparent window 51, which allows the user to observe the interior of the carriage 2 at any time. If a fault is found in the carriage 2, the user can open the door 5 at any time to enter the carriage 2 to repair the fault.

[0050] In some embodiments, there are four first openings 21 and four doors 5. Two first openings 21 are located on one side of the carriage 2, and the other two first openings 21 are located on the other side of the carriage 2. One door 5 is located at one first opening 21. The four doors 5 allow users to observe the interior of the carriage 2 from multiple angles. When a malfunction occurs inside the carriage 2, it is also convenient for users to open the doors 5 located near the malfunction point and quickly reach the malfunction point for repair.

[0051] In some embodiments, the transparent window 51 is made of a transparent material, such as transparent glass, acrylic material, etc.

[0052] In this embodiment of the invention, the unmanned truck 100 includes a cargo compartment 2, a conveyor belt 3, and a clamping mechanism 4. The conveyor belt 3 is fixed to the bottom surface of the cargo compartment 2 and is used to transport or carry transport shelves. The clamping mechanism 4 is installed on the inner wall of the cargo compartment 2 and is movable relative to the conveyor belt 3. The clamping mechanism 4 is used to clamp the transport shelves on the conveyor belt 3. This enables the unmanned truck 100 to automatically load and unload transport shelves, thereby achieving unmanned delivery of goods.

[0053] It should be noted that while the preferred embodiments of the present invention are given in the specification and accompanying drawings, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of the present invention; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of the present invention. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of the present invention specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An unmanned cart, characterized by, The unmanned vehicle comprises: a vehicle compartment; a conveyor fixed to the bottom surface of the vehicle compartment, the conveyor being used for conveying or carrying the transport shelves; a clamping mechanism installed on the inner wall of the vehicle compartment, the clamping mechanism being movable relative to the conveyor, the clamping mechanism being used for clamping the transport shelves on the conveyor. The conveyor comprises a conveying mechanism, a chassis, a first positioning assembly and a second positioning assembly, the chassis being fixed to the bottom surface of the vehicle compartment, the conveying mechanism being arranged on the chassis, the first positioning assembly and the second positioning assembly being arranged at the two ends of the conveying mechanism. The number of the conveying mechanisms is at least two, the at least two conveying mechanisms being arranged in series on the chassis, the conveyor further comprising at least one transition assembly and at least one third positioning assembly, the two ends of the transition assembly being connected to the adjacent two conveying mechanisms, the two ends of the third positioning assembly being arranged on the adjacent two conveying mechanisms, the first positioning assembly and the second positioning assembly being oppositely arranged at one end of the first and last conveying mechanisms, and the first positioning assembly, the second positioning assembly and the third positioning assembly being used for clamping the transport shelves on the conveying mechanisms.

2. The unmanned vehicle according to claim 1, wherein the clamping mechanism comprises a driving device, a transmission mechanism and a clamping piece, the transmission mechanism being connected between the driving device and the clamping piece, the transmission mechanism being fixedly installed on the inner wall of the vehicle compartment, the driving device driving the clamping piece to move through the transmission mechanism, and the clamping mechanism being used for clamping the transport shelves on the conveyor.

3. The unmanned vehicle according to claim 1, wherein the clamping mechanism comprises a driving device, a transmission mechanism and a clamping piece, the transmission mechanism being connected between the driving device and the clamping piece, the driving device being fixedly installed on the inner wall of the vehicle compartment, the driving device driving the clamping piece to move through the transmission mechanism, and the clamping mechanism being used for clamping the transport shelves on the conveyor.

4. The unmanned vehicle according to claim 2 or 3, wherein the transmission mechanism comprises a first mounting plate, a second mounting plate, a connecting frame rod, a connecting rod and a rotating arm, the first mounting plate and the second mounting plate being connected with the inner wall of the vehicle compartment, one end of the connecting frame rod being rotatably connected with the first mounting plate and the second mounting plate, one end of the connecting rod being rotatably connected with the driving device and the other end of the connecting frame rod, the rotating arm being rotatably connected with the other end of the connecting rod, one end of the rotating arm being rotatably connected with the first mounting plate and the second mounting plate, and the other end of the rotating arm being connected with the clamping piece.

5. The unmanned vehicle according to claim 4, wherein the number of the clamping mechanisms is at least four, the at least four clamping mechanisms being oppositely arranged on the two inner walls of the vehicle compartment, and two clamping mechanisms corresponding to one conveying mechanism.

6. The unmanned vehicle according to claim 1, wherein the unmanned vehicle further comprises a vehicle door, the vehicle compartment is provided with a first opening, and the vehicle door is arranged at the first opening.

7. The unmanned cart according to claim 6, wherein, the doors are provided with transparent windows.

8. The unmanned cart according to claim 7, wherein, the number of the first openings and the doors are both four, the four first openings are arranged on two sides of the cart body, and one door is arranged at one first opening.

9. The unmanned cart according to claim 1, wherein, the unmanned cart further comprises a rolling door mechanism, one end of the cart body is provided with a second opening, and the rolling door mechanism is arranged at the second opening.

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