Auxiliary loading and unloading device and logistics transportation vehicle

Abstract

The utility model relates to the technical field of logistics equipment, and provides an auxiliary loading and unloading device and a logistics transportation vehicle, the auxiliary loading and unloading device comprises a bearing unit, and further comprises an overturning unit hinged to the side edge of the bearing unit and rotating around the side edge of the bearing unit; the atomic box unit is matched with the overturning unit and synchronously rotates along with the overturning unit after being clamped with the overturning unit; and the guide unit is fixed on the upper end surface of the bearing unit. One or more overturning units are installed on the side edge of the bearing unit, articles to be transported are placed in the containing space of the atomic box unit, and the overturning units are rotated to drive the atomic box unit and the articles in the atomic box unit to be overturned to the position above the bearing unit; the loading and unloading operation of objects with larger weight can be achieved without the help of additional tools such as forklifts, power-on or assistance of additional power structures such as hydraulic pressure and air pressure is not needed, the structure is simple, the cost and the failure rate are low, operation is convenient and fast, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics equipment, and in particular provides an auxiliary loading and unloading device and a logistics transportation vehicle. Background Art

[0002] With the progress of society, the logistics industry is booming. Logistics vehicles are important tools in the logistics and transportation industry. When logistics vehicles arrive at the designated location, they usually need to load and unload goods. In addition to the tailgate at the rear of the vehicle that can facilitate loading and unloading, for bulk goods or heavy goods, they can only be loaded and unloaded with tools such as forklifts or a large amount of manpower. The cost of loading and unloading with forklifts is high and it is difficult to be available on call. For some small loading and unloading points or small logistics vehicles, it is not convenient to use forklifts. Moving goods in or out of the carriage one by one by manpower is not only time-consuming and labor-intensive, but also inefficient and may even cause damage to goods or personal injury, resulting in unnecessary losses.

[0003] Although there are some devices on the market that can assist in loading and unloading, most of them require electricity or the use of hydraulic, pneumatic and other power structures to operate. They are complex in structure, expensive and have a high failure rate. Utility Model Content

[0004] The utility model aims to provide an auxiliary loading and unloading device and a logistics transport vehicle, which have a simple structure, low cost and low failure rate, and can easily realize cargo loading and unloading without the aid of tools.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The embodiment of the present application provides an auxiliary loading and unloading device, including a load-bearing unit fixed on a vehicle chassis, and further comprising:

[0007] A flip unit, hinged to the side edge of the carrying unit and rotating around the side edge of the carrying unit;

[0008] The atomic box unit cooperates with the flip unit and rotates synchronously with the flip unit after being clamped with the flip unit;

[0009] The guiding unit is fixed to the upper end surface of the carrying unit, and plays a guiding and supporting role when the atomic box unit rotates to the top of the carrying unit along with the flip unit.

[0010] Furthermore, the flip unit includes two hinged seats fixed on the carrying unit, a rotating shaft is sleeved on the inner side of the hinged seat, a flip base is sleeved on the outer side of the middle part of the rotating shaft and located between the two hinged seats, and the flip base is connected to a fastening assembly for fixing the atomic box unit.

[0011] Furthermore, the fastening assembly includes a hollow optical axis sleeved on the inner side of the flip base, a locking fixing rod is provided in the middle of the two hollow optical axis, and the ends are connected to the clamping base, a first locking rod is provided at one end of the locking fixing rod, a ball screw is provided at the other end, and a second locking rod is provided on the side of the middle close to the ball screw, the locking fixing rod is passed through the clamping base and a clamping elastic part is connected between the two, a buffering elastic part is sleeved on the outer side of a section of the hollow optical axis located above the flip base, and a limiting assembly cooperating with the hollow optical axis is also provided in the middle of the flip base.

[0012] Furthermore, the limiting assembly includes a limiting pawl rotatably connected to the flip base and a pull rope fixing seat fixed on the side wall of the bearing unit, a pull rope is connected between the pull rope fixing seat and the limiting pawl, and a reset elastic member is also arranged inside the limiting pawl.

[0013] Furthermore, the flip unit also includes a force storage elastic member, which is sleeved on both ends of the rotating shaft; when the flip unit is perpendicular to the carrying unit, the force storage is maximum, and when the flip unit is parallel to the carrying unit, the force storage is completely released or reversely stored.

[0014] Furthermore, the flip unit also includes a roller, which is sleeved on the middle part of the rotating shaft and located inside the hinge seat; when the flip unit rotates to above the carrying unit, the atomic box unit moves with the cooperation of the roller.

[0015] Furthermore, the flip unit also includes a clamping block, which is fixed to the upper end of the clamping base and is used to cooperate with the clamping base, the first lock and the second lock to clamp the atomic box unit.

[0016] Furthermore, the atomic box unit includes a box support that cooperates with the flip unit, a cover enclosing the periphery of the box support, and at least one set of running wheels symmetrically arranged on both sides of the box support. The box support and the cover enclose a storage space for placing items.

[0017] Furthermore, the front cover is any one of a sealing plate and a mesh grille surface or a combination of the two.

[0018] An embodiment of the present application also provides a logistics transport vehicle, including a vehicle chassis, and also including the auxiliary loading and unloading device as described above, wherein the load-bearing unit of the auxiliary loading and unloading device is fixed at the upper end of the vehicle chassis.

[0019] Beneficial effects of this application:

[0020] The auxiliary loading and unloading device provided in the present application is to install one or more flip units on the side of the carrying unit, place the items to be transported in the accommodating space of the atomic box unit, and drive the atomic box unit and the items inside to flip over the carrying unit by rotating the flip unit. It can realize the loading and unloading operations of heavier items without the aid of additional tools such as forklifts, greatly improving the efficiency, and does not require electricity or the use of additional power structures such as hydraulics and pneumatics. It has a simple structure, low cost and failure rate, and is convenient and quick to operate, saving time and effort.

[0021] It should be noted that the logistics transport vehicle provided in the present application includes the above-mentioned auxiliary loading and unloading device, and therefore also has the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 is a schematic diagram of the overall structure of an auxiliary loading and unloading device in one embodiment;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective;

[0025] Figure 3 It is a schematic diagram of assembling the flip unit and the carrying unit in one embodiment;

[0026] Figure 4 for Figure 3 A schematic diagram of the structure from another perspective;

[0027] Figure 5 is a schematic structural diagram of a flip unit in one embodiment;

[0028] Figure 6 for Figure 4 A partial enlarged view of point B in the middle;

[0029] Figure 7 A schematic diagram of the structure of an atomic box unit in one embodiment;

[0030] Figure 8 for Figure 2 A partial enlarged view of the middle A;

[0031] Among them, the reference numerals in the figure are:

[0032] 1. Carrying unit; 2. Turning unit; 3. Atom box unit; 4. Guiding unit;

[0033] 20. Articulated seat; 21. Rotating shaft; 22. Locking bar; 23. First locking bar; 24. Hollow optical axis; 25. Second locking bar; 26. Clamping base; 27. Ball screw; 28. Clamping elastic member; 29. ​​Flipping base; 210. Roller; 211. Force storage elastic member; 212. Buffering elastic member; 213. Clamping block; 214. Limiting pawl; 215. Draw rope fixing seat; 216. Draw rope; 217. Reset elastic member;

[0034] 31. Box bracket; 32. Cover; 33. Travel wheels. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0036] 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.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Please refer to Figure 1 to Figure 2 The auxiliary loading and unloading device provided in the embodiment of the present application is suitable for the field of logistics and transportation, and is mainly used to assist manual loading and unloading. It mainly includes a load-bearing unit 1, a flip unit 2, an atomic box unit 3 and a guiding unit 4; wherein the load-bearing unit 1 is a platform structure, which can be fixed on a vehicle chassis or on an ordinary shelf; the flip unit 2 is hinged to the side edge of the load-bearing unit 1 and rotates around the side edge of the load-bearing unit 1, and the number can be one or more distributed on the side edge of the load-bearing unit 1; the atomic box unit 3 cooperates with the flip unit 2, and after being clamped with the flip unit 2, it rotates synchronously with the flip unit 2, and can be separated from the flip unit 2 after being released; the guiding unit 4 is fixed to the upper end surface of the load-bearing unit 1, and has a guiding oblique shoulder and a supporting surface. When the atomic box unit 3 rotates to the top of the load-bearing unit 1 along with the flip unit 2, it plays a guiding and supporting role, and the atomic box unit 3 moves along the guiding unit 4.

[0040] This embodiment rotates the flipping unit to drive the atomic box unit and the items inside it to flip over to the top of the carrying unit, so that heavier items can be loaded and unloaded without the aid of additional tools such as forklifts, greatly improving efficiency. It also does not require electricity or the use of additional power structures such as hydraulics and pneumatics. It has a simple structure, low cost and failure rate, and is easy and quick to operate, saving time and effort.

[0041] In one embodiment, if Figures 3 to 6 As shown, each flip unit 2 includes two articulated seats 20 fixed on the bearing unit 1, and a rotating shaft 21 is sleeved on the inner side of the articulated seat 20. The rotating shaft 21 passes through the two articulated seats 20 and has a section extending at both ends, and a flip base 29 is sleeved on the outer side of the middle part located between the two articulated seats 20; the bottom of the articulated seat 20 is a plane, fixed on the upper end surface of the bearing unit 1, and the part cooperating with the rotating shaft 21 extends out of the side edge of the bearing unit 1 to ensure that no interference occurs during flipping; the flip base 29 is connected to the fastening assembly used to fix the atomic box unit 3, thereby realizing the synchronous rotation of the atomic box unit 3.

[0042] More specifically, the fastening assembly includes a hollow optical axis 24 sleeved on the inner side of the flip base 29, a locking fixing rod 22 is arranged in the middle of the two hollow optical axis 24, and the end is connected to the clamping base 26, one end of the locking fixing rod 22 is provided with a first locking buckle 23, the other end is provided with a ball screw 27, and the middle side close to the ball screw 27 is provided with a second locking buckle 25, the locking fixing rod 22 is penetrated through the clamping base 26 and a clamping elastic member 28 is connected between the two, a buffering elastic member 212 is sleeved on the outer side of a section of the hollow optical axis 24 located above the flip base 29, and a limiting assembly cooperating with the hollow optical axis 24 is also arranged in the middle of the flip base 29; it should be noted that a linear bearing (not shown) is also arranged inside the flip base 29 to ensure the smooth sliding of the hollow optical axis 24 inside it. In this embodiment, the clamping elastic member 28 and the buffering elastic member 212 are both springs. In other embodiments, elastic bands or other elastic materials can also be selected; when the flip unit 2 is perpendicular to the bearing unit 1, the ball screw 27 is in contact with the ground, and the clamping is achieved by the friction between the ball screw 27 and the ground. At this time, the clamping elastic member 28 is in a stretched state, and the locking fixing rod 22 moves up, thereby unlocking the atomic box unit 3.

[0043] More specifically, the limiting assembly includes a limiting pawl 214 rotatably connected to the flip base 29 and a pull rope fixing seat 215 fixed on the side wall of the carrying unit 1, a pull rope 216 is connected between the pull rope fixing seat 215 and the limiting pawl 214, and a reset elastic member 217 is also arranged inside the limiting pawl 214. In the present embodiment, the pull rope 216 is a steel wire rope, and the reset elastic member 217 is a torsion spring, which can assist the limit pawl 214 in resetting; the limit pawl 214 has two states, one is when the angle formed between the flip unit 2 and the load-bearing unit 1 is 60 to 90 degrees, at this time, the limit pawl 214 is clamped with the groove opened in the middle of the hollow optical axis 24, and the other is when the angle formed between the flip unit 2 and the load-bearing unit 1 is less than 60 degrees, at this time, the limit pawl 214 is tangent to the outer wall of the hollow optical axis 24; when the limit pawl 214 is clamped with the hollow optical axis 24, even if the atomic box unit 3 is detached from the flip unit 2, the fastening assembly as a whole will not move upward, thereby facilitating unloading; only when the angle formed between the flip unit 2 and the load-bearing unit 1 is less than 60 degrees, the limit pawl 214 will be unlocked from the groove of the hollow optical axis 24 under the pulling of the pull rope 216, and the fastening assembly will move upward as a whole, thereby facilitating loading. It should be noted that the angle may also be other angles, and can be adjusted by setting the pull rope 216 of different lengths as needed.

[0044] Preferably, the flip unit 2 also includes a force storage elastic member 211, which is sleeved at both ends of the rotating shaft 21; the force storage is maximum when the flip unit 2 is perpendicular to the load-bearing unit 1, and the force storage is completely released or reversely stored when the flip unit 2 is parallel to the load-bearing unit 1. In this embodiment, the force storage elastic member 211 uses a torsion spring, and the force storage is maximum when the flip unit 2 is perpendicular to the load-bearing unit 1, so that the force of pulling and lifting the atomic box unit 3 when loading goods can be minimized, saving time and effort; when the flip unit 2 is parallel to the load-bearing unit 1, the force storage is completely released, and it is further preferably reversely stored, so that the force of pulling up the atomic box unit 3 when unloading goods can be reduced, and the same force can be used to lift a heavier atomic box unit 3; when flipped to a certain angle, the forward force is re-stored, so that the atomic box unit 3 can be gently lowered to ensure safe unloading. In other embodiments, the force storage elastic member 211 can also use a constant force spring.

[0045] Preferably, the flip unit 2 further includes a roller 210, which is sleeved on the middle of the rotating shaft 21 and located inside the hinge seat 20; when the flip unit 2 rotates to the top of the carrying unit 1, the atomic box unit 3 moves with the cooperation of the roller 210. In this embodiment, the roller 210 uses a rolling bearing, and when the atomic box unit 3 leans on the rolling bearing, the rolling of the rolling bearing reduces the force of pushing the atomic box unit 3, making the operation more labor-saving.

[0046] Preferably, the flip unit 2 also includes a clamping block 213, which is fixed to the upper end of the clamping base 26, and is used to cooperate with the clamping base 26, the first lock 23 and the second lock 25 to clamp the atomic box unit 3. The clamping base 26 is also provided with a guide slope to facilitate the sliding of the atomic box unit 3. When the atomic box unit 3 is clamped into the clamping base 26, in order to reduce the shaking of the atomic box unit 3 during rotation, a clamping block 213 is provided on the other side of the atomic box unit 3 bracket to ensure the stability of the atomic box unit 3 during flipping.

[0047] In one embodiment, if Figures 7 and 8As shown, the atomic box unit 3 includes a box support 31 that cooperates with the flip unit 2, a cover 32 enclosed on the periphery of the box support 31, and at least one group of running wheels 33 symmetrically arranged on both sides of the box support 31. The box support 31 and the cover 32 enclose a storage space for placing items, and at least one surface can be opened to facilitate the placement of goods. In this embodiment, the box support 31 adopts a square tube structure to facilitate the clamping with the flip unit 2; the running wheels 33 are provided in four groups to facilitate the smooth pushing of the atomic box unit 3 when any side is facing down, and the applicability is stronger. In other embodiments, in order to reduce the overall weight of the atomic box unit 3, the running wheels 33 are provided as a group, and when moving, they are like traditional flatbed trucks.

[0048] Preferably, the cover 32 is any one of a sealing plate or a mesh surface or a combination of the two; when the atomic box unit 3 needs to be completely closed, a sealing plate can be used, otherwise a mesh surface or a combination of the two can be used. In order to reduce the overall weight of the atomic box unit 3, a PP honeycomb panel or a fine metal wire mesh can be used to save effort or load more items while ensuring strength; a mating space is reserved at the place where the clamping base 26, the first lock buckle 23 and the second lock buckle 25 are matched, so as to facilitate the smooth insertion of the atomic box unit 3 into the flip unit 2.

[0049] During specific use, the items to be transported are placed in the atomic box unit 3, the atomic box unit 3 is pushed so that its docking surface faces the flip unit 2 on the side of the carrying unit 1, and the box bracket 31 is slid along the guide slope of the clamping base 26 into between the clamping base 26 and the clamping block 213. At this time, the first lock buckle 23 is aligned with the air avoidance hole of the atomic box unit 3, the force storage elastic member 211 is in the maximum force storage state, and the buffer elastic member 212 is in a compressed state, thereby completing the loading of the atomic box unit 3.

[0050] Pull the atomic box unit 3 to the side away from the bearing unit 1, and the ball screw 27 is separated from the ground under the action of external force. At this time, the clamping elastic member 28, which was originally in a stretched state, begins to shrink, driving the locking fixing rod 22 to move upward, and the clamping base 26 moves upward synchronously and cooperates with the second lock 25 and the clamping block 213 to clamp the bottom of the box bracket 31. At the same time, the first lock 23 clamps the top of the box bracket 31, thereby completing the locking combination of the atomic box unit 3 and the flip unit 2.

[0051] The atomic box unit 3 is rotated with the rotating shaft 21 as the central axis to lift the atomic box unit 3 upward. When it is lifted to a certain angle, the limit pawl 214 is separated from the hollow optical axis 24 under the action of the pull rope 216 and the pull rope fixing seat 215, and the atomic box unit 3 continues to rotate upward until it is parallel to the carrying unit 1. At this time, the atomic box unit 3 contacts the roller 210 and the guide unit 4, and is pushed forward with the help of the roller 210 and the buffer elastic member 212, and moves along the guide unit 4 to align with the other side of the carrying unit 1, thereby completing the loading.

[0052] The unloading operation is the opposite, which will not be elaborated here; it should be noted that when the flip unit 2 carrying the atomic box unit 3 rotates to be perpendicular to the carrying unit 1, the ball screw 27 is clamped with the ground under the action of friction, and at the same time, the limit pawl 214 clamps the hollow optical axis 24 under the action of the reset elastic member 217. At this time, the lock fixing rod 22 moves up, and the first lock 23 and the second lock 25 synchronously release the box bracket 31. Even if the atomic box unit 3 is removed, the flip unit 2 as a whole will not move up under the action of the limit pawl 214, and waits for the next loading in this state.

[0053] The auxiliary loading and unloading device provided in the embodiment of the present application is to install one or more flip units on the side of the carrying unit, place the items to be transported in the accommodating space of the atomic box unit, and drive the atomic box unit and the items inside to flip over the carrying unit by rotating the flip unit. It can realize the loading and unloading operations of heavier items without the aid of additional tools such as forklifts, and does not require electricity or the use of additional power structures such as hydraulics and pneumatic pressure. It has a simple structure, is convenient and quick to operate, and saves time and effort.

[0054] The embodiment of the present application also provides a logistics transport vehicle, including a vehicle chassis, and also including the auxiliary loading and unloading device as described above, wherein the carrying unit 1 of the auxiliary loading and unloading device is fixed to the upper end of the vehicle chassis. Please refer to the above for the specific use process, which will not be repeated here.

[0055] The auxiliary loading and unloading device may be one or more. When multiple devices are arranged, they may be placed on the same side of the carrying unit 1 or on different sides and staggered with each other.

[0056] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An auxiliary loading and unloading device, comprising a load-bearing unit (1) fixed to a vehicle chassis, characterized in that: Also includes: A turning unit (2) is hinged to the side edge of the carrying unit (1) and rotates around the side edge of the carrying unit (1); The atomic box unit (3) cooperates with the flip unit (2) and rotates synchronously with the flip unit (2) after being clamped with the flip unit (2); The guiding unit (4) is fixed to the upper end surface of the carrying unit (1) and plays a guiding and supporting role when the atomic box unit (3) rotates to the top of the carrying unit (1) along with the flip unit (2).

2. The auxiliary loading and unloading device according to claim 1, characterized in that: The flip unit (2) comprises two hinged seats (20) fixed on the bearing unit (1), a rotating shaft (21) is sleeved on the inner side of the hinged seat (20), a flip base (29) is sleeved on the outer side of the middle part of the rotating shaft (21) and is located between the two hinged seats (20), and the flip base (29) is connected to a fastening component for fixing the atomic box unit (3).

3. The auxiliary loading and unloading device according to claim 2, characterized in that: The fastening assembly comprises a hollow optical axis (24) sleeved on the inner side of the flip base (29); a locking fixing rod (22) is arranged in the middle of the two hollow optical axes (24), and the ends are connected to the clamping base (26); one end of the locking fixing rod (22) is provided with a first locking buckle (23), the other end is provided with a ball screw (27), and a second locking buckle (25) is arranged on the side of the middle close to the ball screw (27); the locking fixing rod (22) is penetrated by the clamping base (26) and a clamping elastic member (28) is connected between the two; a buffer elastic member (212) is sleeved on the outer side of a section of the hollow optical axis (24) located above the flip base (29); and a limiting assembly cooperating with the hollow optical axis (24) is also arranged in the middle of the flip base (29).

4. The auxiliary loading and unloading device according to claim 3, characterized in that: The limiting assembly comprises a limiting pawl (214) rotatably connected to the flip base (29) and a drawstring fixing seat (215) fixed on the side wall of the bearing unit (1); a drawstring (216) is connected between the drawstring fixing seat (215) and the limiting pawl (214); and a reset elastic member (217) is also arranged inside the limiting pawl (214).

5. The auxiliary loading and unloading device according to claim 2, characterized in that: The flip unit (2) further comprises a force-storage elastic member (211), wherein the force-storage elastic member (211) is sleeved on both ends of the rotating shaft (21); when the flip unit (2) is perpendicular to the bearing unit (1), the force storage is maximum; when the flip unit (2) is parallel to the bearing unit (1), the force storage is completely released or reversely stored.

6. The auxiliary loading and unloading device according to claim 2, characterized in that: The flip unit (2) further comprises a roller (210), wherein the roller (210) is sleeved on the middle of the rotating shaft (21) and is located inside the hinge seat (20); when the flip unit (2) rotates to above the carrying unit (1), the atomic box unit (3) moves in cooperation with the roller (210).

7. The auxiliary loading and unloading device according to claim 3, characterized in that: The flip unit (2) also includes a clamping block (213), which is fixed to the upper end of the clamping base (26) and is used to cooperate with the clamping base (26), the first locking buckle (23) and the second locking buckle (25) to clamp the atomic box unit (3).

8. The auxiliary loading and unloading device according to any one of claims 1 to 7, characterized in that: The atomic box unit (3) comprises a box support (31) cooperating with the flip unit (2), a cover (32) enclosing the outer periphery of the box support (31), and at least one set of running wheels (33) symmetrically arranged on both sides of the box support (31); the box support (31) and the cover (32) enclose a storage space for placing items.

9. The auxiliary loading and unloading device according to claim 8, characterized in that: The cover (32) is any one of a sealing plate and a mesh grille surface or a combination of the two.

10. A logistics transport vehicle, comprising a vehicle chassis, characterized in that: It also comprises the auxiliary loading and unloading device according to any one of claims 1 to 9, wherein the carrying unit (1) of the auxiliary loading and unloading device is fixed to the upper end of the vehicle chassis.

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