Unloading device for a logistics vehicle
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-15
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]但是，传统的物流车在卸货过程中，货物从车厢内下落时会产生较大的冲击力，如果缺乏有效的缓冲结构，货物可能会因撞击而损坏，尤其是对于易碎品或精密设备，这种冲击可能导致严重的经济损失
Smart Images
Figure CN224619111U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of logistics and transportation technology, and in particular to an unloading device for logistics vehicles. Background Technology
[0002] In modern logistics and transportation systems, unloading of goods by logistics vehicles is a crucial link. Its efficiency and safety directly affect the operational efficiency of the entire logistics chain. Its main functions are to improve the efficiency of unloading goods, reduce the intensity of manual labor, and ensure the safety of goods during the unloading process.
[0003] However, during the unloading process of traditional logistics vehicles, the falling of goods from the truck bed generates a significant impact force. Without an effective cushioning structure, the goods may be damaged by the impact, especially fragile items or precision equipment, which could lead to serious economic losses. Existing cushioning structures are generally fixed or temporarily installed at the bottom side, such as cushioning cylinders or cushioning cotton, which are inconvenient for transport or handling, and may even be forgotten to be installed, resulting in damage to the goods due to impact. Utility Model Content
[0004] The purpose of this application is to provide a loading and unloading device for logistics vehicles, which realizes the automatic raising of the buffer plate, effectively buffers the impact force when the goods fall, protects the goods from damage, and the automatic raising does not require manual intervention, making it convenient and highly reliable.
[0005] This application provides a loading and unloading device for a logistics vehicle, comprising: The base has a horizontally penetrating recessed groove on its upper surface, which is lower than the front and rear ends on the opposite sides. The transmission mechanism includes a plurality of laterally extending fixed posts arranged in a direction perpendicular to the lateral direction within the recessed groove, a plurality of hollow posts sleeved and connected to opposite sides of each of the fixed posts, and a synchronous belt sleeved and fitted onto the outer surfaces of the fixed posts and the hollow posts; and The buffer mechanism includes an upper opening and a longitudinally deep placement groove at the rear end of the base, a buffer plate disposed in the placement groove, and a gear set drivenly connected to the hollow column near the rear end. The buffer plate has multiple teeth arranged longitudinally on one side, and the gear set meshes with the teeth to drive the buffer plate to rise and fall.
[0006] Furthermore, the gear set includes two first gears respectively sleeved and connected to two hollow columns on opposite sides of the rear end, and two second gears respectively sleeved and connected to the two first gears synchronously via toothed belts, the two second gears meshing with the teeth.
[0007] Furthermore, the two second gears are connected by a concentric shaft, and the gear set also includes a tooth groove sleeved on the concentric shaft. The tooth groove is located in the middle of the rear end of the base, and the buffer plate has a plurality of teeth arranged longitudinally on the side opposite to the recessed groove. The tooth groove is set towards the teeth and meshes with the teeth.
[0008] Furthermore, the buffer plate is a rubber plate made of rubber material.
[0009] Furthermore, the base is provided with outward expansion mechanisms that extend to both sides along opposite sides in the lateral direction.
[0010] Furthermore, a rectangular groove is provided horizontally through the lower part of the recessed groove of the base; The external expansion mechanism includes: two rectangular blocks respectively inserted into opposite sides of the rectangular groove along the lateral direction, and a drive mechanism that is pulsatorically connected to the two rectangular blocks. The drive mechanism drives the two rectangular blocks to extend into opposite sides of the base in a direction away from each other, and drives the two rectangular blocks to retract in a direction closer to each other.
[0011] Furthermore, the external expansion mechanism also includes two upwardly extending rectangular plates that are fixedly connected to the outer sides of the two rectangular blocks respectively, and the top surface of the rectangular plates is set higher than the upper surface of the base.
[0012] Furthermore, the driving mechanism includes a rotary motor located at one end of the rectangular groove between the two rectangular blocks, two first umbrella wheels located at the middle position between the two rectangular blocks and connected to the drive shaft of the rotary motor, and two cylinders extending laterally with one end threadedly connected to the inside of the two rectangular blocks respectively, and the other end of the two cylinders is respectively fixedly sleeved with a second umbrella wheel, and the two first umbrella wheels are respectively meshed with the two second umbrella wheels.
[0013] Furthermore, the front and rear sides of the rectangular groove are respectively provided with two first sliding grooves and two second sliding grooves extending laterally. A first slider is slidably connected to each of the two first sliding grooves, and the two first sliders are fixedly connected to one end face of the two rectangular blocks near the front side of the rectangular groove. A second slider is slidably connected to each of the two second sliding grooves, and the two second sliders are fixedly connected to one end face of the two rectangular blocks near the rear side of the rectangular groove.
[0014] Furthermore, the lower end face of the base is provided with three casters arranged in a triangular pattern, including a first caster located in the middle of the front end and two second casters spaced apart on the rear end; and / or The lower end face of the base is provided with three hydraulic cylinders arranged in a triangle, including two first hydraulic cylinders located at intervals on the front end side and a second hydraulic cylinder located in the middle of the rear end side.
[0015] Compared with the prior art, the unloading device for logistics vehicles provided in this application includes a base with a horizontally penetrating recessed groove on its upper surface; a transmission mechanism including a plurality of horizontally extending fixed columns arranged in a direction perpendicular to the horizontal direction within the recessed groove, a plurality of hollow columns sleeved and connected to the opposite sides of each fixed column, and a synchronous belt sleeved and fitted to the outer surfaces of the fixed columns and hollow columns; and a buffer mechanism including an upper-opening and longitudinally deep placement groove at the rear end of the base, a buffer plate disposed in the placement groove, and a gear set driven and connected to the hollow columns near the rear end. A plurality of teeth are arranged longitudinally on one side of the buffer plate, and the gear set meshes with the teeth to drive the buffer plate to rise and fall.
[0016] With this design, when goods are placed on the synchronous belt from the front end of the base, gravity causes the hollow column at the front to rotate. This rotation drives the synchronous belt to rotate, which in turn drives the hollow column at the rear to rotate. The rear-end hollow column then drives the gear set to rotate, which in turn drives the buffer plate, connected to it by teeth, to rise. This buffers the goods falling on the synchronous belt, effectively cushioning the impact and protecting the goods from damage. Furthermore, it features an automatic mechanism where the buffer plate rises automatically when goods are placed on the synchronous belt, requiring no manual intervention. It is highly automated, convenient, reliable, and when not in use, it is concealed within the placement slot, not affecting transport or space allocation. The structure is simple and easy to store. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the structure of the unloading device for logistics vehicles provided in the embodiments of this application; Figure 2 This is a partial structural schematic diagram of the unloading device for a logistics vehicle provided in an embodiment of this application; Figure 3 This is a schematic diagram of the internal structure of the unloading device for logistics vehicles provided in the embodiments of this application. Figure 1 ; Figure 4This is a schematic diagram of the internal structure of the unloading device for logistics vehicles provided in the embodiments of this application. Figure 2 ; Figure 5 This is a bottom schematic diagram of the unloading device for a logistics vehicle provided in an embodiment of this application.
[0019] Figure label: 10-Base; 11 - Front end; 12 - Rear end; 13- Recessed groove; 14-Placement slot; 15-Rectangular groove; 21-Fixed column; 22-Hollow column; 23-Synchronous belt; 31-Buffer plate; 311-teeth; 41 - First Gear; 42 - Second gear; 43-toothed belt; 44-tooth groove; 51-Rectangular block; 52-Rectangular plate; 61-Rotating electric motor; 611 - Drive shaft; 62-Motor placement slot; 631 - First Parachute Wheel; 632 - Second parachute wheel; 633 - Cylinder; 70 - First chute; 71 - First slider; 81 - Casters; 82-Hydraulic cylinder. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0023] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0024] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0025] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0026] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0027] like Figures 1 to 5 As shown, this application embodiment provides a loading and unloading device for logistics vehicles, used for unloading goods from logistics vehicles. The loading and unloading device includes a base 10, a transmission mechanism, and a buffer mechanism. The upper surface of the base 10 is provided with a transverse a-axis (e.g., ...) Figure 2 A recessed groove 13 extending through in direction a) is shown, the recessed groove 13 being lower than the front end portion 11 and the rear end portion 12 on opposite sides.
[0028] The transmission mechanism includes a plurality of fixed posts 21 located in the recessed groove 13 and arranged in a direction perpendicular to the transverse direction a, and each fixed post 21 extends along the transverse direction a; a plurality of hollow posts 22 sleeved and connected to the opposite sides of each fixed post 21, with two hollow posts 22 on each side of each fixed post 21; and a synchronous belt 23 sleeved and fitted to the outer surfaces of the fixed posts 21 and the hollow posts 22, the movement of the synchronous belt causing the hollow posts 22 fitted to it to rotate.
[0029] The buffer mechanism includes a placement groove 14 located at the rear end 12 of the base 10 and extending longitudinally, with an opening at the top; a buffer plate 31 disposed within the placement groove 14, the buffer plate 31 being able to extend upwards and retract downwards from the opening at the top of the placement groove 14, a plurality of teeth 311 arranged longitudinally on one side of the buffer plate 31, and preferably being a rubber plate made of rubber material; and a gear set drivenly connected to the hollow column 22 at the rear end 12, the gear set meshing with the teeth 311 to drive the buffer plate 31 to rise and fall.
[0030] Compared with the prior art, the unloading device for logistics vehicles provided in this application includes a base 10 with a horizontally penetrating recessed groove 13 on its upper surface; a transmission mechanism including a plurality of fixed columns 21 located in the recessed groove 13 and arranged in a direction perpendicular to the horizontal direction a, extending along the horizontal direction a, and a plurality of hollow columns 22 sleeved and connected to the opposite sides of each fixed column 21, and a synchronous belt 23 sleeved and fitted to the outer surfaces of the fixed columns 21 and the hollow columns 22; and a buffer mechanism including a placement groove 14 with an upper opening and longitudinal depth at the rear end 12 of the base 10, a buffer plate 31 disposed in the placement groove 14, and a gear set drivenly connected to the hollow columns 22 at the rear end 12. A plurality of teeth 311 are arranged longitudinally on one side of the buffer plate 31, and the gear set meshes with the teeth 311 to drive the buffer plate 31 to rise and fall.
[0031] With this configuration, when goods are placed on the synchronous belt 23 from the front end 11 of the base 10, the hollow column 22 at the front end rotates due to gravity. The rotation of the hollow column 22 at the front end drives the synchronous belt 23 to rotate, which in turn drives the hollow column 22 at the rear end to rotate. The rotation of the hollow column 22 at the rear end drives the gear set to rotate, which in turn drives the buffer plate 31, which is connected to it by teeth 311, to rise. This buffers the goods falling up and down the synchronous belt 23, effectively cushioning the impact of the falling goods and protecting them from damage. It also realizes an automatic mechanism that automatically triggers the buffer plate 31 to rise when the goods are placed on the synchronous belt 23, without the need for manual intervention. It is highly automatic, convenient, easy to use, and reliable. When not in use, it is hidden in the placement slot 14, which does not affect the transport or space placement. The structure is simple and easy to store.
[0032] like Figure 2 As shown, in a specific embodiment, the aforementioned gear set may include two first gears 41 respectively sleeved and connected to two hollow pillars 22 on opposite sides of the rear end 12, and two second gears 42 respectively sleeved and connected to the two first gears 41 synchronously via toothed belts 43. The two second gears 42 are engaged with the teeth 311 of the aforementioned buffer plate 31. Thus, the rotation of the first gears 41 drives the rotation of the second gears 42 via the toothed belts 43, and the rotation of the second gears 42 drives the buffer plate 31 to rise via the teeth 311.
[0033] Furthermore, such as Figure 2 and Figure 3 As shown, in a more specific embodiment, the two second gears 42 mentioned above can be coaxially connected by a concentric shaft. The gear set mentioned above may also include a tooth groove 44 sleeved on the concentric shaft, and the tooth groove 44 is located in the middle of the rear end 12 of the base 10. Correspondingly, the buffer plate 31 mentioned above is provided with a plurality of teeth 311 arranged longitudinally on the side opposite to the recessed groove 13 mentioned above, and the tooth groove 44 is arranged facing the teeth 311 and meshes with the teeth 311.
[0034] In this way, the rotation of the first gear 41 drives the rotation of the second gear 42 via the toothed belt 43. The rotation of the second gear 42 drives the tooth groove 44 to rotate, and the rotation of the tooth groove 44 meshes with the teeth 311, causing the buffer plate 31 to rise. This configuration makes the connection and transmission more reliable.
[0035] A preferred embodiment is, as follows: Figure 1 As shown in the embodiment of this application, the unloading device for logistics vehicles also includes an external expansion mechanism. The base 10 can be provided with external expansion mechanisms that can be expanded to both sides along the opposite sides of the transverse direction a. The external expansion mechanism can increase the area of the upper surface of the base that can bear goods, thereby adapting to the placement of more goods of different sizes and improving its applicability.
[0036] Based on the foregoing embodiments, such as Figures 1 to 3 As shown, in a specific embodiment, a rectangular groove 15 is further provided along the transverse direction a below the recessed groove 13 of the base 10. This external expansion mechanism specifically includes: two rectangular blocks 51 respectively inserted into opposite sides of the rectangular groove 15 along the transverse direction a, and a drive mechanism pulsatorically connected to the two rectangular blocks 51. The drive mechanism can drive the two rectangular blocks 51 to extend outwards towards opposite sides of the base 10 in a direction away from each other, and can also drive the two rectangular blocks 51 to retract in a direction closer to each other. This achieves the external expansion function, allowing for convenient adjustment of the size of goods that can be placed on the upper surface of the base, accommodating goods of different sizes.
[0037] In a further embodiment, the aforementioned external extension mechanism may further include two rectangular plates 52 that are fixedly connected to the outer side of the two rectangular blocks 51 and extend upward, and the top surface of the two rectangular plates 52 is higher than the upper end surface of the base 10.
[0038] The combination of rectangular plate 52 and rectangular block 51 not only increases the bearing area and strength of the upper surface of base 10, enabling it to bear larger and heavier goods, but also increases the size of the goods that can be placed. The top surface of the rectangular plate 52 is set higher than the upper surface of base 10, which also plays a role in limiting and protecting the opposite sides of base 10, effectively protecting the goods carried on the upper surface of base 10 from falling out to the side.
[0039] A more specific embodiment is, as Figure 3 As shown, the aforementioned drive mechanism may specifically include a rotary motor 61 disposed between two rectangular blocks 51 and located at one end of a rectangular groove 15. The end of the rectangular groove 15 may be provided with a motor placement groove 62, and the rotary motor 61 may be placed in the motor placement groove 62; two first umbrella wheels 631 connected to the drive shaft 611 of the rotary motor 61 and located at the middle position between the two rectangular blocks 51; and two cylinders 633 extending along the transverse direction a and having one end threadedly connected to the inside of the two rectangular blocks 51, and the other end of the two cylinders 633 respectively being fixedly sleeved with a second umbrella wheel 632, and the two first umbrella wheels 631 and the two second umbrella wheels 632 respectively meshing with each other.
[0040] With this configuration, the control rotary motor 61 starts and drives the two first umbrella wheels 631 to rotate. The rotation of the two first umbrella wheels 631 drives the two second umbrella wheels 632 to rotate. The rotation of the two second umbrella wheels 632 drives the two cylinders 633 to rotate. The rotation of the two cylinders 633 pushes the two rectangular blocks 51 outward through a threaded connection, thereby extending the two rectangular blocks 51 outward in a direction away from each other to the opposite sides of the base 10. This increases the lateral expansion size of the upper surface of the base 10, making it easy to adjust the size of the goods that can be placed on the upper surface of the base 10, and can accommodate more goods of different sizes.
[0041] A more preferred embodiment is, as follows: Figure 3 and Figure 4As shown, the front and rear sides of the aforementioned rectangular groove 15 may be provided with two first sliding grooves 70 and two second sliding grooves (not shown in the figure) extending laterally a. The two first sliding grooves 70 are slidably connected to the first sliders 71 respectively. The two first sliders 71 are fixedly connected to the end face of the two rectangular blocks 51 near the front side of the rectangular groove 15 respectively. The two second sliding grooves are slidably connected to the second sliders respectively. The two second sliders are fixedly connected to the end face of the two rectangular blocks 51 near the rear side of the rectangular groove 15 respectively.
[0042] Thus, when the two cylinders 633 rotate and push the two rectangular blocks 51 outward through the threaded connection, the four sliders (two first sliders 71 and two second sliders) move in the four grooves (two first grooves 70 and two second grooves) respectively, limiting the outward movement of the two rectangular blocks 51, further ensuring the accuracy of their movement, effectively preventing jamming, and making the operation smoother.
[0043] like Figure 5 As shown, in one optional embodiment, the lower end face of the base 10 is provided with three casters 81 arranged in a triangular pattern. Specifically, it may include a first caster located in the middle of the front end and two second casters located at intervals on the rear end. The casters 81 are used to move the device, thereby improving the practicality of the device.
[0044] Another alternative embodiment is that the lower end face of the base 10 is provided with three hydraulic cylinders 82 arranged in a triangle, specifically including two first hydraulic cylinders spaced apart on the front end side and a second hydraulic cylinder in the middle on the rear end side.
[0045] This configuration allows the hydraulic cylinder 82 to lift the front end of the base 10 to the opening of the logistics vehicle compartment, achieving precise docking with the compartment and ensuring smooth unloading of goods; at the same time, it allows the casters 81 to leave the ground, increasing the stability of the device during operation.
[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A loading / unloading device for a logistics vehicle, characterized in that, include: The base (10) has a horizontally penetrating recessed groove (13) on its upper surface, which is lower than the front end (11) and rear end (12) on opposite sides. The transmission mechanism includes a plurality of horizontally extending fixed posts (21) arranged in the recessed groove (13) and perpendicular to the horizontal direction, a plurality of hollow posts (22) sleeved and connected to the opposite sides of each fixed post (21), and a synchronous belt (23) sleeved and fitted to the outer surfaces of the fixed posts (21) and the hollow posts (22). and The buffer mechanism includes an upper opening and a longitudinally deep placement groove (14) located at the rear end (12) of the base (10), a buffer plate (31) located in the placement groove (14), and a gear set drivenly connected to the hollow column (22) at the rear end (12). The buffer plate (31) has a plurality of teeth (311) arranged longitudinally on one side. The gear set meshes with the teeth (311) to drive the buffer plate (31) to rise and fall.
2. The unloading device for logistics vehicles according to claim 1, characterized in that, The gear set includes two first gears (41) that are respectively sleeved and connected to two hollow columns (22) on opposite sides of the rear end (12), and two second gears (42) that are synchronously sleeved and connected to the two first gears (41) through toothed belts (43). The two second gears (42) are meshed with the teeth (311).
3. The unloading device for logistics vehicles according to claim 2, characterized in that, Two second gears (42) are connected by a concentric shaft. The gear set also includes a tooth groove (44) sleeved on the concentric shaft. The tooth groove (44) is located in the middle of the rear end (12) of the base (10). The buffer plate (31) is provided with a plurality of teeth (311) arranged longitudinally on the side away from the recessed groove (13). The tooth groove (44) is set towards the teeth (311) and meshes with the teeth (311).
4. The unloading device for logistics vehicles according to claim 1, characterized in that, The buffer plate (31) is a rubber plate made of rubber material.
5. The unloading device for logistics vehicles according to any one of claims 1 to 4, characterized in that, The base (10) is also provided with outward expansion mechanisms that extend to both sides along the opposite sides of the horizontal direction.
6. The unloading device for logistics vehicles according to claim 5, characterized in that, A rectangular groove (15) is also provided horizontally below the recessed groove (13) of the base (10). The external expansion mechanism includes: two rectangular blocks (51) respectively inserted into the opposite sides of the rectangular slot (15) in the lateral direction, and a drive mechanism that is connected to the two rectangular blocks (51) in a transmission manner. The drive mechanism drives the two rectangular blocks (51) to extend to the opposite sides of the base (10) in a direction away from each other, and drives the two rectangular blocks (51) to retract in a direction close to each other.
7. The unloading device for logistics vehicles according to claim 6, characterized in that, The external expansion mechanism also includes two upwardly extending rectangular plates (52) that are fixedly connected to the outer sides of the two rectangular blocks (51) respectively, and the top surface of the rectangular plates (52) is set higher than the upper surface of the base (10).
8. The unloading device for logistics vehicles according to claim 7, characterized in that, The driving mechanism includes a rotary motor (61) located at one end of the rectangular groove (15) between the two rectangular blocks (51), two first umbrella wheels (631) located at the middle position between the two rectangular blocks (51) and connected to the drive shaft (611) of the rotary motor (61), and two cylinders (633) extending laterally with one end threadedly connected to the inside of the two rectangular blocks (51), and the other end of the two cylinders (633) is respectively fixedly sleeved with a second umbrella wheel (632), and the two first umbrella wheels (631) are respectively meshed with the two second umbrella wheels (632).
9. The unloading device for a logistics vehicle according to any one of claims 6 to 8, characterized in that, The front and rear sides of the rectangular groove (15) are respectively provided with two first sliding grooves (70) and two second sliding grooves extending laterally. The two first sliding grooves (70) are respectively slidably connected with first sliders (71). The two first sliders (71) are respectively fixedly connected to one end face of the two rectangular blocks (51) near the front side of the rectangular groove (15). The two second sliding grooves are respectively slidably connected with second sliders. The two second sliders are respectively fixedly connected to one end face of the two rectangular blocks (51) near the rear side of the rectangular groove (15).
10. The unloading device for a logistics vehicle according to claim 1, characterized in that, The lower end face of the base (10) is provided with three universal wheels (81) arranged in a triangular pattern, including a first universal wheel located in the middle of the front end and two second universal wheels spaced apart on the rear end; and / or The lower end face of the base (10) is provided with three hydraulic cylinders (82) arranged in a triangular pattern, including two first hydraulic cylinders located at intervals on the front end side and a second hydraulic cylinder located in the middle of the rear end side.