Double-cage unmanned vehicle

Abstract

The double-cage unmanned vehicle comprises a vehicle frame, the middle of the vehicle frame is hollowed out, the bottom of the vehicle frame is provided with an opening, a telescopic platform stretching towards the side face of the vehicle frame is arranged at the opening, and a lifting mechanism is arranged on the vehicle frame and connected with the telescopic platform. After the telescopic platform extends out, the cage trolley is pushed to the position above the telescopic platform, and the telescopic platform can pull the cage trolley into the frame and ascend; when the cage trolley is unloaded, the lifting mechanism drives the telescopic platform to descend to make the cage trolley make contact with the ground, the telescopic platform drives the cage trolley to stretch out towards the side face of the frame, and automatic unloading is achieved. The cage trolley only needs to ascend, descend, stretch and retract in the loading and unloading process and does not need to be overturned, and express items in the cage trolley can be prevented from being damaged; two cage trolleys can be loaded at a time, the transportation volume is multiplied, and the distribution efficiency is improved; the cage trolley adopts vertical transportation and is matched with the vertical stress design of the cage trolley, so that the service life of the cage trolley is prevented from being influenced; automatic unloading can be achieved, manual cargo receiving is not needed, use is more convenient, and the utilization rate of the unmanned vehicle can be increased.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent vehicles, in particular to a double-cage unmanned vehicle. Background Art

[0002] Cage carts are unit-sized mobile containerized equipment equipped with several casters for transporting and storing goods. They are a common cargo carrier in logistics, transit, and sorting. They enable rapid unloading, online sorting, and loading of goods, improving express delivery efficiency. During the logistics and transportation process, cage carts not only ensure the safety of materials, but also prevent clutter in sorted goods, saving time and effort during subsequent loading and unloading.

[0003] At present, cage trucks and logistics vehicles are independent of each other and have no connection. After the goods are loaded into the cage truck, they need to be moved to the logistics vehicle by manual labor or forklifts. After arriving at the destination or transfer point, the cage truck needs to be unloaded. Since the fully loaded cage truck is heavy (can reach about 400 kg), the handling efficiency is low, which extends the transportation time of express delivery and poses certain safety hazards.

[0004] While there are also solutions on the market that can automatically load and unload cage carts, such as the Chinese patent document with publication number CN 117922408 A, which discloses a courier delivery flipping mechanism and an unmanned delivery vehicle, these devices utilize a movably mounted loading member on the unmanned vehicle body. The movably mounted loading member is driven by the movable member and the connecting member, allowing the loading member to slide forward and backward under the guidance of a guide portion and flip over under the limiting action of the guide portion. By moving the loading member backward and then flipping it backward, the loading member can be positioned vertically, allowing the package to be directly pushed into the loading member. The loading member is then flipped forward and positioned horizontally, and finally moved forward to a predetermined position, completing the automatic loading of the package. However, this technical solution has the following shortcomings: 1. The cage car needs to be flipped 90 degrees during loading and unloading, causing the express parcels high in the cage car to flip over, which can easily cause the express parcels to be crushed under the action of gravity; 2. The unmanned vehicle can only load one cage car at a time and can only serve one branch point, which is inefficient; 3. The cage car is designed to bear vertical force, and its force points are concentrated at the bottom. The lateral bearing capacity is limited. When horizontal transportation is used, the service life of the cage car will be reduced; 4. When unloading, manual labor is required to wait for the delivery and pull the cage car out, which is time-consuming and labor-intensive. If it cannot be unloaded in time, the utilization rate of the unmanned vehicle will be reduced. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the existing technology and provide a double-cage unmanned vehicle that can automatically pull a cage vehicle into or push it out from the vehicle frame, is more convenient to use, and is conducive to improving loading and unloading efficiency.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A double-cage unmanned vehicle comprises a vehicle frame, wherein the middle portion of the vehicle frame is hollowed out and the bottom is open, a telescopic platform that is telescopic toward the side of the vehicle frame is provided at the opening, and a lifting mechanism is provided on the vehicle frame, wherein the lifting mechanism is connected to the telescopic platform and drives the telescopic platform to perform lifting motion.

[0008] As a further improvement of the above technical solution: the telescopic platform includes a base plate, a first telescopic plate arranged on the base plate and a telescopic driving member for driving the first telescopic plate to move relative to the base plate, and the base plate is connected to the lifting mechanism.

[0009] As a further improvement of the above technical solution: the telescopic platform further includes a second telescopic plate provided on the first telescopic plate, and the second telescopic plate is connected to the telescopic driving member to move relative to the first telescopic plate.

[0010] As a further improvement of the above technical solution: the telescopic driving member is a first motor and is arranged on the first telescopic plate, the rotating shaft of the first motor is provided with a driving gear and a driving pulley, the bottom plate is provided with a rack, the driving gear is engaged with the rack, the first telescopic plate is provided with a driven pulley, the driving pulley and the driven pulley are wound with a synchronous belt, and the second telescopic plate is connected to the synchronous belt.

[0011] As a further improvement of the above technical solution: the second telescopic plate is a rectangular plate, and horizontally arranged second motors are provided at the four corners of the rectangular plate, and a locking block is provided on the rotating shaft of the second motor.

[0012] As a further improvement of the above technical solution: two telescopic platforms are provided, and both of the telescopic platforms are equipped with the lifting mechanism.

[0013] As a further improvement of the above technical solution: the lifting mechanism includes a lifting body, a lifting guide rail provided on the frame and a lifting drive member for driving the lifting body to move relative to the lifting guide rail; the lifting body is connected to the telescopic platform; the lifting guide rails are relatively arranged on both sides of the lifting body and are slidably connected to the lifting body.

[0014] As a further improvement of the above technical solution: a guide groove is provided on the lifting guide rail, and a roller is provided on the lifting body, and the roller is located in the guide groove.

[0015] As a further improvement of the above technical solution: a connecting frame is provided between the lifting guide rails on both sides, and the lifting drive member is provided in the middle of the connecting frame.

[0016] As a further improvement of the above technical solution: the frame includes a top connecting frame, a side connecting frame and brackets arranged at the lower parts of the two ends of the top connecting frame, the upper part of the side connecting frame is connected to the top connecting frame, the two ends of the side connecting frame are connected to the side faces of the brackets, the telescopic platform is located between the brackets at both ends, and the lifting mechanism is arranged on the side connecting frame.

[0017] Compared with the existing technology, the advantages of the present invention are as follows: the double-cage unmanned vehicle disclosed in the present invention has a hollowed-out middle frame and an open bottom. The opening is equipped with a telescopic platform that can be extended to the side of the frame and raised and lowered by a lifting mechanism. After the telescopic platform is extended, the cage car is pushed above the telescopic platform, which automatically pulls the cage car into the frame and raises it into position. When unloading the cage car, the lifting mechanism drives the telescopic platform down so that the cage car contacts the ground, and the telescopic platform drives the cage car to extend to the side of the frame, achieving automatic unloading. Compared with the existing technology, the present invention allows the cage car to be loaded and unloaded only by lifting and retracting, without the need for flipping, which helps to prevent damage to express parcels inside the cage car. Two cage cars can be loaded at once, thereby doubling the unmanned vehicle's transport capacity and improving delivery efficiency. The cage cars are transported vertically, which matches the vertical force design of the cage cars and avoids affecting the service life of the cage cars. Automatic unloading is possible, eliminating the need for manual delivery, making it more convenient to use and also helping to increase the utilization rate of the unmanned vehicle.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent detailed description of the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the double-cage unmanned vehicle from the first perspective of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the double-cage unmanned vehicle of the utility model from the second perspective.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the telescopic platform in the utility model.

[0022] Figure 4 It is a partial enlarged view of the telescopic platform in the utility model.

[0023] Figure 5 It is a three-dimensional structural diagram of the lifting mechanism and the telescopic platform in the utility model.

[0024] Figure 6 It is a three-dimensional structural diagram of the vehicle frame in the present invention.

[0025] Figure 7 It is a front structural schematic diagram of the vehicle frame in the present invention.

[0026] The numbers in the figure represent:

[0027] 1. Frame; 11. Top connecting frame; 12. Side connecting frame; 13. Bracket; 2. Telescopic platform; 20. Driving pulley; 21. Bottom plate; 22. First telescopic plate; 23. Telescopic drive member; 24. Second telescopic plate; 25. Driving gear; 26. Rack; 27. Driven pulley; 28. Synchronous belt; 281. Protrusion; 29. Locking block; 291. Second motor; 3. Lifting mechanism; 31. Lifting body; 311. Roller; 32. Lifting guide rail; 321. Guide groove; 33. Lifting drive member; 34. Connecting frame; 4. Cage car. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0030] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," "connect," "fix," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Figures 1 to 7An embodiment of the double-cage unmanned vehicle of the present invention is shown. The unmanned vehicle of this embodiment includes a frame 1, the middle part of the frame 1 is hollow and the bottom is open, and a telescopic platform 2 that is telescopic to the side of the frame 1 is provided at the opening (according to the relevant requirements of road traffic regulations, the vehicle must drive on the right, so in this embodiment, the telescopic platform 2 extends to the right side of the frame 1). A lifting mechanism 3 is provided on the frame 1, and the lifting mechanism 3 is connected to the telescopic platform 2 to drive the telescopic platform 2 to rise and fall.

[0033] The dual-cage unmanned vehicle of this embodiment has a hollowed-out frame 1 with an open bottom. The opening houses a telescopic platform 2 that can be extended and retracted toward the sides of the frame 1 and raised and lowered by a lifting mechanism 3. When the telescopic platform 2 is extended, the cage cart 4 is pushed onto the platform 2, which automatically pulls the cage cart 4 into the frame 1 and raises it into position. When unloading the cage cart 4, the lifting mechanism 3 lowers the telescopic platform 2 until the cart 4 touches the ground, and the platform 2 extends the cart 4 toward the sides of the frame 1, achieving automatic unloading. This dual-cage unmanned vehicle of this embodiment requires only lifting and retracting the cart 4 during loading and unloading, eliminating the need for flipping. This helps prevent damage to parcels inside the cart 4. Two carts 4 can be loaded at once, thereby multiplying the vehicle's transport capacity and improving delivery efficiency. The carts 4 are transported vertically, matching their vertical load-bearing design and minimizing the service life of the carts. Automatic unloading eliminates the need for manual loading and unloading, making it more convenient and improving loading and unloading efficiency.

[0034] See Figure 3 and 4 Furthermore, in this embodiment, the telescopic platform 2 includes a base plate 21, a first telescopic plate 22 mounted on the base plate 21, and a telescopic drive 23 for driving the first telescopic plate 22 to move relative to the base plate 21. The base plate 21 is connected to the lifting mechanism 3 (specifically, the lifting body 31). During operation, the lifting mechanism 3 drives the base plate 21 up and down, and the first telescopic plate 22 rises and falls synchronously with the base plate 21. The telescopic drive 23 then drives the first telescopic plate 22 to move relative to the base plate 21 to achieve the first stage of telescopic movement.

[0035] Furthermore, in this embodiment, the telescopic platform 2 also includes a second telescopic plate 24 disposed on the first telescopic plate 22. The second telescopic plate 24 is connected to the telescopic drive member 23 for movement relative to the first telescopic plate 22. Under the action of the telescopic drive member 23, the second telescopic plate 24 moves relative to the first telescopic plate 22 to achieve a second stage of telescopic extension. The two-stage telescopic structure increases the telescopic travel while reducing the overhang of the second telescopic plate 24, improving stability. Furthermore, the shared telescopic drive member 23 simplifies the structure and reduces costs.

[0036] Furthermore, in this embodiment, the telescopic drive member 23 is a first motor and is disposed on the first telescopic plate 22. The first motor's rotating shaft is provided with a drive gear 25 and a driving pulley 20. A rack 26 is provided on the base plate 21. The drive gear 25 meshes with the rack 26. The first telescopic plate 22 is provided with a driven pulley 27. A synchronous belt 28 is wound around the driving pulley 20 and the driven pulley 27. The second telescopic plate 24 is connected to the synchronous belt 28 (for example, the synchronous belt 28 is provided with a protrusion 281, which is fixedly connected to the second telescopic plate 24 via a threaded fastener). During operation, the first motor simultaneously drives the drive gear 25 and the driving pulley 20 to rotate. Since the rack 26 is mounted on the base plate 21 and remains fixed, the first telescopic plate 22 moves relative to the base plate 21. Since the second telescopic plate 22 is provided on the first telescopic plate 22, the second telescopic plate 24 will move with the first telescopic plate 22. At the same time, the active pulley 20 and the driven pulley 27 drive the synchronous belt 28 to run, and the synchronous belt 28 can drive the second telescopic plate 24 to move relative to the first telescopic plate 22, so that the moving speed of the second telescopic plate 24 is the sum of the moving speed of the first telescopic plate 22 and the running speed of the synchronous belt 28, thereby improving the operating efficiency of the second telescopic plate 24 and shortening the time required for the telescopic movement.

[0037] As a preferred embodiment, the first telescopic plate 22 is located in the middle of the bottom plate 21, and the second telescopic plate 24 is located in the middle of the first telescopic plate 22, which has good symmetry and force balance, and is conducive to maintaining stable operation of the telescopic platform 2.

[0038] In a preferred embodiment, the second telescopic plate 24 is a rectangular plate with horizontally arranged second motors 291 installed at the four corners of the rectangular plate. A locking block 29 is installed on the rotating shaft of the second motor 291. The second motor 291 can drive the locking block 29 to rotate in a vertical plane. When the cage trolley 4 needs to be loaded or unloaded, the second motor 291 drives the locking block 29 to rotate to a horizontal position to avoid interference. When the cage trolley 4 needs to be fixed to the second telescopic plate 24, the second motor 291 drives the locking block 29 to rotate to a vertical position, effectively preventing the cage trolley 4 from accidentally moving on the second telescopic plate 24. The structure is simple and reliable.

[0039] In a preferred embodiment, two telescopic platforms 2 are provided, each equipped with a lifting mechanism 3. These two telescopic platforms 2 can accommodate two cage carts 4, thereby multiplying the transport capacity of the unmanned vehicle. Furthermore, the two telescopic platforms 2 can be raised and lowered independently without interfering with each other. In other embodiments, only one lifting mechanism 3 may be provided, but this will result in the two telescopic platforms 2 being able to rise and fall only synchronously.

[0040] See Figure 5Furthermore, in this embodiment, the lifting mechanism 3 includes a lifting body 31, a lifting guide rail 32 provided on the frame 1, and a lifting drive 33 for driving the lifting body 31 to move relative to the lifting guide rail 32. The lifting body 31 is connected to the telescopic platform 2 (specifically, the base plate 21), and the lifting guide rails 32 are arranged on both sides of the lifting body 31 and are slidably connected to the lifting body 31. Preferably, the lifting drive 33 is an electric push rod. Of course, in other embodiments, it can also be a gear rack pair, a synchronous belt mechanism, etc. During operation, the lifting drive 33 drives the lifting body 31 and the telescopic platform 2 to rise and fall as a whole. The lifting guide rails 32 on both sides provide guidance for the lifting body 31, ensuring a smooth lifting process and avoiding deviation.

[0041] Furthermore, in this embodiment, a guide groove 321 is provided on the lifting guide rail 32, and a roller 311 is provided on the lifting body 31. The roller 311 is located in the guide groove 321. The cooperation between the guide groove 321 and the roller 311 can provide a good guiding effect for the lifting body 31 to avoid deviation, and at the same time reduce the resistance of the lifting movement. The structure is simple and effective.

[0042] Furthermore, a connecting frame 34 is provided between the lifting guide rails 32 on both sides, and the lifting drive member 33 is provided in the middle of the connecting frame 34 , which has good symmetry and force balance, and is conducive to achieving smooth lifting of the lifting body 31 .

[0043] See Figure 6 and Figure 7 Furthermore, in this embodiment, the frame 1 includes a top connecting frame 11, a side connecting frame 12 and a bracket 13 provided at the lower part of the two ends of the top connecting frame 11, the upper part of the side connecting frame 12 is connected to the top connecting frame 11, and the two ends of the side connecting frame 12 are connected to the side of the bracket 13 (the telescopic platform 2 extends to the right, and accordingly, the side connecting frame 12 is connected to the left side of the bracket 13, which can maximize the space inside the frame 1 for loading the cage car 4 without affecting the loading and unloading of the cage car 4), the telescopic platform 2 is located between the brackets 13 at both ends, and the lifting mechanism 3 is provided on the side connecting frame 12.

[0044] Since the telescopic platform 2 extends to the right, the right sides of the brackets 13 at both ends cannot be connected as one. The top connecting frame 11 and the side connecting frame 12 can improve the connection strength of the brackets 13 at both ends, thereby improving the overall rigidity of the frame 1. At the same time, the side connecting frame 12 also facilitates the installation of the two lifting mechanisms 3.

[0045] The specific process of the delivery method of the double-cage unmanned vehicle of the utility model is as follows:

[0046] S1. Loading the cage car 4: The lifting drive 33 drives the lifting body 31 and the telescopic platform 2 to descend as a whole until they touch the ground. The first motor drives the driving gear 25 and the active pulley 20 to rotate at the same time. The first telescopic plate 22 and the second telescopic plate 24 are extended to the right side of the frame 1. Then the cage car 4 is manually pushed above the second telescopic plate 24. The second motor 291 drives the locking block 29 to rotate to a vertical state, fixing the cage car 4 on the second telescopic plate 24. The first motor drives the driving gear 25 and the active pulley 20 to rotate in the opposite direction at the same time. The first telescopic plate 22, the second telescopic plate 24 and the cage car 4 are pulled back into the frame 1. The lifting drive 33 drives the lifting body 31, the telescopic platform 2 and the cage car 4 to rise as a whole, so that the cage car 4 is off the ground.

[0047] S2. Unloading the Cage Cart: Upon reaching its destination, the lift drive 33 lowers the lift body 31, telescopic platform 2, and cage car 4, freeing the cage car 4 from the ground. The first motor simultaneously rotates the drive gear 25 and the active pulley 20, causing the first and second telescopic plates 22, 24, and cage car 4 to extend to the right side of the vehicle frame 1. The second motor 291 rotates the locking block 29 to a horizontal position, and the first and second telescopic plates 22, 24 retract into the vehicle frame 1, separating from the cage car 4. This completes automatic unloading, eliminating the need for manual handling. The dual-cage unmanned vehicle then departs on its own to perform its next mission or return to its destination.

[0048] Although the present invention has been disclosed above with reference to preferred embodiments, this is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the present invention, utilize the technical content disclosed above to make many possible changes and modifications to the present invention, or modify it into equivalent embodiments with equivalent variations. Therefore, any simple modifications, equivalent variations, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the scope of protection of the present invention.

Claims

1. A double-cage unmanned vehicle, comprising a vehicle frame (1), wherein the vehicle frame (1) is hollowed out in the middle and open at the bottom, and is characterized in that: A telescopic platform (2) that is telescopically extendable toward the side of the vehicle frame (1) is provided at the opening, and a lifting mechanism (3) is provided on the vehicle frame (1). The lifting mechanism (3) is connected to the telescopic platform (2) and drives the telescopic platform (2) to perform lifting movements.

2. The double-cage unmanned vehicle according to claim 1, characterized in that: The telescopic platform (2) comprises a base plate (21), a first telescopic plate (22) arranged on the base plate (21), and a telescopic driving member (23) for driving the first telescopic plate (22) to move relative to the base plate (21); the base plate (21) is connected to the lifting mechanism (3).

3. The double-cage unmanned vehicle according to claim 2, characterized in that: The telescopic platform (2) further comprises a second telescopic plate (24) provided on the first telescopic plate (22), wherein the second telescopic plate (24) is connected to the telescopic driving member (23) to move relative to the first telescopic plate (22).

4. The double-cage unmanned vehicle according to claim 3, characterized in that: The telescopic driving member (23) is a first motor and is arranged on the first telescopic plate (22); a driving gear (25) and a driving pulley (20) are provided on the rotating shaft of the first motor; a rack (26) is provided on the bottom plate (21); the driving gear (25) is meshed with the rack (26); a driven pulley (27) is provided on the first telescopic plate (22); a synchronous belt (28) is wound around the driving pulley (20) and the driven pulley (27); and the second telescopic plate (24) is connected to the synchronous belt (28).

5. The double-cage unmanned vehicle according to claim 3, characterized in that: The second telescopic plate (24) is a rectangular plate. A horizontally arranged second motor (291) is provided at the four corner positions of the rectangular plate. A locking block (29) is provided on the rotating shaft of the second motor (291).

6. The double-cage unmanned vehicle according to any one of claims 1 to 5, characterized in that: Two telescopic platforms (2) are provided, and both telescopic platforms (2) are equipped with the lifting mechanism (3).

7. The double-cage unmanned vehicle according to any one of claims 1 to 5, characterized in that: The lifting mechanism (3) comprises a lifting body (31), a lifting guide rail (32) provided on the vehicle frame (1), and a lifting drive member (33) for driving the lifting body (31) to move relative to the lifting guide rail (32); the lifting body (31) is connected to the telescopic platform (2); the lifting guide rail (32) is relatively arranged on both sides of the lifting body (31) and is slidably connected to the lifting body (31).

8. The double-cage unmanned vehicle according to claim 7, characterized in that: A guide groove (321) is provided on the lifting guide rail (32), a roller (311) is provided on the lifting body (31), and the roller (311) is located in the guide groove (321).

9. The double-cage unmanned vehicle according to claim 8, characterized in that: A connecting frame (34) is provided between the lifting guide rails (32) on both sides, and the lifting driving member (33) is provided in the middle of the connecting frame (34).

10. The double-cage unmanned vehicle according to any one of claims 1 to 5, characterized in that: The vehicle frame (1) comprises a top connecting frame (11), a side connecting frame (12), and brackets (13) arranged at the lower parts of both ends of the top connecting frame (11); the upper parts of the side connecting frames (12) are connected to the top connecting frame (11); the two ends of the side connecting frames (12) are connected to the side surfaces of the brackets (13); the telescopic platform (2) is located between the brackets (13) at both ends; and the lifting mechanism (3) is arranged on the side connecting frames (12).

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