Reversible load platform, transport vehicle and control method

Abstract

The application discloses a reversible carrying platform, a transport carrier and a control method, wherein the reversible carrying platform comprises a guide rail extending in a first direction, at least two carrying members, each of which is positionable in cooperation with the guide rail, each of the carrying members being provided with a constraint hole and a positioning assembly, and a fork arm slidingly installed in the constraint hole of each of the carrying members, each of the positioning assemblies independently having a positioning state of limiting a position relationship between the fork arm and the corresponding carrying member and a free state of allowing the fork arm to move relative to the corresponding carrying member, and the fork arm moves with the corresponding carrying member when the positioning assembly is in the positioning state. The application proposes a brand-new reversing device, effectively overcomes the problems of complex reversing structure and inconvenient operation in the prior art, and can quickly, accurately, safely and conveniently realize reversing of the fork arm, so that the logistics efficiency is effectively improved and the overall cost is reduced.

Description

Technical Field

[0001] This application relates to the field of mechanical devices, and in particular to reversible cargo platforms, transport vehicles, and control methods. Background Technology

[0002] Forklifts are common pieces of machinery in the logistics industry. With the development of warehousing and logistics, the demand for forklift flexibility is increasing. For example, aisle storage places higher demands on forklifts to improve storage density and automation.

[0003] To address the lack of flexibility in traditional forklifts, those skilled in the art have made technical improvements. For example, Chinese patent document CN219730460U discloses a three-way forklift for narrow aisles, including a chassis with a pair of drive wheels, a mounting frame at the front of the chassis, a lifting body on the mounting frame away from the chassis, and a steering mechanism on the mounting frame that drives the lifting body to steer. This technical solution solves the problem of traditional forklifts being unable to operate in narrow aisles through the steering mechanism. However, it also introduces new technical problems, such as the complex steering mechanism significantly increasing production and maintenance costs, and imposing higher learning costs on operators, thus limiting the development of this technical approach.

[0004] Improving forklifts to enable loading and unloading of goods in different directions while ensuring economy, safety, and user experience has become an urgent problem for those skilled in the art. Summary of the Invention

[0005] To address the aforementioned technical problems, this application discloses a reversible cargo platform, comprising:

[0006] The guide rail extends in the first direction;

[0007] At least two support members, each of which is positionably fitted to the guide rail, and each support member is provided with a constraint hole and a positioning component;

[0008] The fork arm is slidably installed in the constraint holes of each load-bearing component. Each positioning component independently has a positioning state that restricts the positional relationship between the fork arm and the corresponding load-bearing component, and a free state that allows the fork arm to move relative to the corresponding load-bearing component. When the positioning component is in the positioning state, the fork arm moves with the corresponding load-bearing component.

[0009] Several alternative methods are provided below, but they are not intended as additional limitations on the overall solution above. They are merely further additions or optimizations. Provided there are no technical or logical contradictions, each alternative method can be combined individually with respect to the overall solution above, or multiple alternative methods can be combined with each other.

[0010] Optionally, the positioning component includes

[0011] A positioning pin is installed on the carrier. In the positioning state, at least a portion of the positioning pin extends into the constraint hole and cooperates with the fork arm to limit the positional relationship between the fork arm and the corresponding carrier.

[0012] A retainer, acting between the locating pin and the carrier, is used to apply a retaining force to the locating pin and hold the locating assembly in the locating state;

[0013] A driving element drives the positioning pin to overcome the holding force of the retaining element, thereby driving the positioning assembly into the free state.

[0014] Optionally, the constraint hole is complementary to the cross-sectional shape of the fork arm, the fork arm is provided with a guide groove, the guide groove extends in the direction of movement of the fork arm, and at least the two ends of the guide groove are enlarged to form positioning holes;

[0015] The positioning pin includes a pin body and a reduced diameter portion located at the end of the pin body. In the positioning state, the pin body engages with the positioning hole to achieve positioning. In the free state, the reduced diameter portion is clearance-fitted within the guide groove or the positioning hole.

[0016] Optionally, the positioning pin is an integral structure including a pin body, a trigger end that cooperates with the driving component, and a guide post for installing the retaining component. The pin body and the guide post are slidably engaged on different sides of the bearing component.

[0017] The trigger end is provided with a guide slope, and the driving member drives the positioning pin to move through the guide slope; there are multiple driving members and each driving member is connected to each other through a synchronous link to move synchronously; the pin body is provided with a clearance hole, and the synchronous link passes through the clearance hole through the positioning pin.

[0018] Optionally, the fork arms are provided in multiple and arranged in parallel with each other;

[0019] The constraint holes are arranged in groups and multiple groups are provided. Each fork arm is slidably installed in a corresponding group of constraint holes, and a group of constraint holes is respectively provided on each bearing member.

[0020] In the positioning state, the positioning components on each load-bearing component synchronously restrict the positional relationship between each fork arm and the corresponding load-bearing component.

[0021] Optionally, the reversible loading platform further includes a base for providing the guide rail, and the load-bearing member is mounted on the base via a roller assembly;

[0022] The base is provided with a rack extending in the first direction, and each bearing member is independently provided with a drive assembly that meshes with the rack.

[0023] Optionally, each load-bearing component is L-shaped and arranged in parallel, and each load-bearing component includes:

[0024] The sliding section is provided with roller assemblies at both the top and bottom. The base includes an upper rail and a lower rail that cooperate with the corresponding roller assemblies. The drive assembly is located at the bottom of the sliding section, and the rack is close to the lower rail.

[0025] The bearing section extends from the sliding section away from the base, the constraint hole is opened on the bearing section, and the fork arm slides in the first direction to engage with the corresponding constraint hole.

[0026] Optionally, the top surface of the bearing section of each bearing member is hinged with a flipping platform, which has a horizontal position parallel to the plane of the fork arm and a vertical position opposite to it.

[0027] When the load-bearing components are far apart, each flipping platform in the horizontal position forms a load-bearing plane parallel to the fork arm; when the load-bearing components are close together, each flipping platform moves into the vertical position to avoid each other.

[0028] This application also discloses a transport vehicle, including a walking device and a reversible cargo platform according to the above technical solution, wherein the reversible cargo platform is directly or indirectly installed on the walking device.

[0029] This application also discloses a control method for a cargo platform, implemented based on the reversible cargo platform in the above-mentioned technical solution, characterized in that it includes...

[0030] Adjust the positioning components of two of the load-bearing components to the free state and the positioning state, respectively;

[0031] The two carriers are moved relative to or away from each other. During the movement, the carrier in the positioning state drives the fork arm to move relative to the other carrier.

[0032] The technical solution disclosed in this application proposes a novel reversing device that effectively overcomes the problems of complex reversing structures and difficult operation in the prior art. It can quickly, accurately, safely and conveniently realize the reversing of the forklifts. Especially for aisle-type and automated warehousing scenarios, it can effectively improve logistics efficiency and reduce overall costs.

[0033] The specific beneficial technical effects will be further explained in the specific implementation methods in conjunction with specific structures or steps. Attached Figure Description

[0034] Figure 1This is a schematic diagram of a reversible cargo platform in one embodiment;

[0035] Figure 2 for Figure 1 A bottom view of the cargo platform in the image;

[0036] Figure 3 for Figure 1 A schematic diagram of the explosion of the cargo platform in the middle;

[0037] Figure 4 for Figure 2 A cross-sectional view of the cargo platform at the indicated location;

[0038] Figure 5 for Figure 4 A partial sectional view of the cargo platform in the diagram;

[0039] Figure 6 This is a schematic diagram of the cooperation between the fork arm and the positioning component in one embodiment;

[0040] Figure 7 for Figure 6 Enlarged schematic diagram of the locating pin in the middle;

[0041] Figure 8 This is a schematic diagram of the positioning component's operation in one embodiment;

[0042] Figure 9 for Figure 8 An enlarged diagram showing the indicated location;

[0043] Figure 10 This is a schematic diagram of a cargo platform after it has been reversed to one side in one embodiment;

[0044] Figure 11 for Figure 10 A top view of the cargo platform in the image;

[0045] Figure 12 This is a schematic diagram of the cargo platform after it has reversed direction to the other side in one embodiment;

[0046] Figure 13 for Figure 12 A top view of the cargo platform.

[0047] The annotations in the figure are explained as follows:

[0048] 1. Bearing component; 11. Constraint hole; 12. Positioning assembly; 121. Positioning pin; 1211. Pin body; 1212. Reduced diameter section; 1213. Trigger end; 1214. Guide post; 1215. Guide slope; 1216. Clearance hole; 1217. Guide post; 1218. Fastener; 1219. Fitting groove; 122. Retaining component; 123. Driving component; 1231. Synchronous connecting rod; 1232. Telescopic motor; 13. Roller assembly; 14. Driving assembly; 151. Sliding section; 152. Bearing section; 153. Guide hole; 154. Guide hole;

[0049] 2. Fork arm; 21. Guide groove; 22. Positioning hole;

[0050] 3. Base; 31. Upper rail; 32. Lower rail; 33. Rack; 34. Position sensor;

[0051] 4. Flip platform;

[0052] 91. First direction. Detailed Implementation

[0053] 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. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] It should be noted that when a component is said to be "connected" to another component, it can be directly connected to the other component or it can be connected to a component in between. When a component is said to be "set on" another component, it can be directly set on the other component or it may be set to a component in between.

[0055] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0056] Reference Appendix Figure 1 To be continued Figure 13 This application discloses a reversible cargo platform, including:

[0057] The guide rail extends in the first direction 91;

[0058] At least two carriers 1, each carrier 1 being positionably fitted to the guide rail, each carrier 1 being provided with a constraint hole 11 and a positioning component 12;

[0059] The fork arm 2 is slidably installed in the constraint hole 11 of each carrier 1. Each positioning component 12 has an independent positioning state that restricts the positional relationship between the fork arm 2 and the corresponding carrier 1, and a free state that allows the fork arm 2 to move relative to the corresponding carrier 1. When the positioning component 12 is in the positioning state, the fork arm 2 moves with the corresponding carrier 1.

[0060] The carrier 1 can move on the guide rail, and in combination with the different states of the positioning component 12, it can move independently of the fork arm 2 or drive the fork arm 2 to move together, thereby realizing the reversal of the fork arm 2 relative to the carrier 1. The technical solution disclosed in this application proposes a brand-new reversing device, which effectively overcomes the problems of complex reversing structures and difficult operation in the prior art. It can realize the reversal of the fork arm 2 quickly, accurately, safely and conveniently. Especially for the use scenarios of aisle-type and automated warehouses, it can effectively improve logistics efficiency and reduce overall costs.

[0061] Various forms can be adopted for the implementation of the guide rail. Preferably, in the embodiment shown in the attached drawings, the reversible loading platform further includes a base 3 for providing the guide rail, and the load-bearing member 1 is assembled onto the base 3 via a roller assembly 13. In the attached drawings, the base 3 is a frame structure, wherein the upper beam of the frame structure has a U-shaped cross-section and serves as the upper track 31, and the upper beam of the frame structure has a U-shaped cross-section and serves as the lower track 32. In addition to providing a stable foundation, the frame structure can also provide a suitable foundation for other accessories. For example, in the attached drawings, the two columns of the frame structure are equipped with position sensors 34 responsive to the load-bearing member 1, used to precisely control the movement of the load-bearing member 1. The position sensors 34 are located at the bottom of the columns.

[0062] Similarly, the positionable engagement between the carrier 1 and the guide rail provided by the base 3 can also be implemented in various ways. For example, a positioning structure can be provided between the carrier 1 and the guide rail to lock the carrier 1 in a specific position; another example is that the carrier 1 or the base 3 is provided with a drive assembly 14 to drive the carrier 1 to move on the guide rail. Furthermore, the drive assembly 14 can also take various forms. For example, a stud disposed between the two columns of the frame structure and forming a threaded rotary pair with the carrier 1; another example is shown in the attached figure, where the base 3 is provided with a rack 33 extending in the first direction 91, and each carrier 1 is independently provided with a drive assembly 14 that meshes with the rack 33. Preferably, the drive assembly 14 is a drive motor with a reduction gearbox.

[0063] Regarding the specific implementation of the positioning component 12, referring to the embodiment shown in the accompanying drawings, the positioning component 12 includes...

[0064] The positioning pin 121 is installed on the carrier 1. In the positioning state, at least a portion of the positioning pin 121 extends into the constraint hole 11 and cooperates with the fork arm 2 to limit the positional relationship between the fork arm 2 and the corresponding carrier 1.

[0065] The retainer 122 acts between the locating pin 121 and the carrier 1. The retainer 122 is used to apply a retaining force to the locating pin 121 and keep the locating assembly 12 in the locating state.

[0066] The driving element 123 drives the positioning pin 121 to overcome the holding force of the retaining element 122 so as to drive the positioning assembly 12 into a free state.

[0067] Furthermore, the cross-sectional shape of the constraint hole 11 is complementary to that of the fork arm 2. The fork arm 2 is provided with a guide groove 21 extending in the direction of movement of the fork arm 2. At least both ends of the guide groove 21 are enlarged to form positioning holes 22. In the positioning state, the positioning pin 121 cooperates with the positioning hole 22 to achieve positioning. In this embodiment, the positioning pin 121 can change the state of the positioning component 12 by changing its own position. Besides being located at both ends of the guide groove 21, the positioning holes 22 can also be located at other positions on the guide groove 21, such as the middle or near the ends. The total number of positioning holes 22 is equal to or greater than the number of positioning pins 121.

[0068] In addition to cooperating with the positioning hole 22 to achieve positioning, the positioning pin 121 can also serve other functions, such as as shown in the attached diagram. Figure 8 and attached Figure 9 As shown, the positioning pin 121 includes a pin body 1211 and a reduced-diameter portion 1212 located at the end of the pin body 1211. In the positioning state, the pin body 1211 engages with the positioning hole 22 to achieve positioning. In the free state, the reduced-diameter portion 1212 is clearance-fitted within the guide groove 21 or the positioning hole 22. With this configuration, the positioning assembly 12 in the free state can also guide or limit the movement of the fork arm 2 through the positioning pin 121, especially the extreme positions of the fork arm 2 in the direction of movement.

[0069] Regarding the drive configuration of locating pin 121, please refer to the attached document. Figure 6 and attached Figure 7In the illustrated embodiment, the positioning pin 121 is an integral structure including a pin body 1211 and a trigger end 1213 that cooperates with the drive member 123. The drive member 123 can be configured to directly apply a force in the direction of movement to the positioning pin 121. Referring also to the accompanying drawings, the trigger end 1213 is provided with a guide slope 1215, through which the drive member 123 drives the positioning pin 121 to move. The guide slope 1215 can prevent the positioning pin 121 from jamming under heavy load conditions. In the drawings, the pin body 1211 and the trigger end 1213 are connected to each other by a fastener 1218. The top of the pin body 1211 is provided with a fitting groove 1219 that matches the bottom shape of the trigger end 1213. The trigger end 1213 is engaged in the fitting groove 1219 and constrained by the fastener 1218. Fastener 1218 is a bolt that passes through trigger end 1213 and mates with screw hole, which is located inside fitting groove 1219.

[0070] For other details regarding the locating pin 121, please refer to the appendix. Figure 5 To be continued Figure 7 In the illustrated embodiment, the locating pin 121 further includes a guide post 1214 for mounting the retainer 122. The pin body 1211 and the guide post 1214 are slidably fitted onto different sides of the carrier 1. In the figures, the guide post 1214 penetrates the upper surface of the carrier 1, and the lower end of the pin body 1211 penetrates the constraint hole 11 and then the lower surface of the carrier 1. (Refer to the attached figure.) Figure 7 and appendix Figure 9In the design, the bottom of the pin 1211, in addition to the constricted neck, is also equipped with a guide post 1217. The pin 1211, the constricted neck, and the guide post 1217 are arranged coaxially and sequentially with progressively decreasing diameters. The reduced diameter of the pin 1211 and the constricted neck allows for switching between the guide groove 21 and the positioning hole 22. The reduced diameter of the constricted neck and the guide post 1217 limits the travel of the positioning pin 121, especially the downward travel. In terms of specific dimensions, the size of the pin 1211 is adapted to the positioning hole 22 to achieve the working effect of the positioning component 12; the size of the constricted neck is adapted to the guide groove 21 to achieve the guiding and limiting effect of the positioning pin 121; the size of the guide post 1217 is adapted to the guide hole 154 located on the bottom surface of the support member 1 to guide the movement of the positioning pin 121 and maintain the spatial position of the positioning pin 121. Similarly, the guide post 1214 is sized to fit the guide hole 153 on the top surface of the support member 1, and the retainer 122 abuts against the edge of the guide hole 153. Besides providing better motion guidance for the positioning pin 121, the guide hole 153 and guide hole 154 can also perform other functions. For example, the guide post 1214 protruding from the upper surface of the support member 1 can be used to indicate the working status of the positioning assembly 12, and furthermore, the guide post 1214 is provided with an indicator mark; another example is that the guide post 1214 or the reduced diameter portion 1212 is provided with an operating end exposed to the outside of the support member 1, so as to facilitate manual operation or coordination with other working equipment.

[0071] In the specific arrangement of the fork arm 2, referring to the embodiment shown in the attached figure, the fork arm 2 is provided in multiple parallel arrangements;

[0072] The constraint holes 11 are arranged in groups and there are multiple groups. Each fork arm 2 is slidably installed in a corresponding group of constraint holes 11. Each group of constraint holes 11 is respectively set on each bearing member 1.

[0073] In the positioning state, the positioning components 12 on each support member 1 synchronously restrict the positional relationship between each fork arm 2 and the corresponding support member 1. The movement direction of the fork arm 2 is restricted by the constraint holes 11, especially the mutual cooperation between the constraint holes 11 of each support member 1. The constraint holes 11 of each support member 1 can be set to be aligned or not aligned. In the embodiment where the constraint holes 11 are not aligned, a friction-reducing structure is provided between the constraint holes 11 and the fork arm 2 to guide the fork arm 2 to move between the non-aligned constraint holes 11. In the embodiment where they are aligned, the constraint holes 11 of each support member 1 can be aligned or intersect in the first direction 91. In order to simplify the cooperation relationship and improve stability, the fork arm 2 shown in the figure extends in a straight line, the constraint holes 11 of each support member 1 are aligned with each other, and the fork arm 2 slides in the first direction 91 with the corresponding constraint hole 11.

[0074] The synchronization of the positioning component 12 is mainly reflected in the synchronized movement of the driving component 123 and the positioning pin 121. Specifically, the synchronization can be achieved by setting the same power source for each driving component 123 or by setting different but synchronized power sources. In the attached drawings, multiple driving components 123 are provided, and each driving component 123 is connected to the same telescopic motor 1232 via a synchronization link 1231. The synchronization link 1231 connects each driving component 123 to move synchronously. The movement directions of the driving components 123, the positioning pin 121, and the fork arm 2 are perpendicular to each other. The telescopic motor 1232 is located inside the bearing component 1 and close to the base 3. The driving components 123 are respectively located on the side of the corresponding positioning pin 121 facing away from the telescopic motor 1232. The pin body 1211 has a clearance hole 1216, and the synchronization link 1231 passes through the positioning pin 121 via the clearance hole 1216. The clearance hole 1216 is a strip-shaped hole extending in the direction of movement of the positioning pin 121.

[0075] Regarding the specific configuration of the bearing component 1, please refer to the appendix. Figure 4 As shown, each support member 1 is L-shaped and arranged in parallel. Each support member 1 includes:

[0076] The sliding section 151 is provided with roller assemblies 13 at both the top and bottom. The base 3 includes an upper rail 31 and a lower rail 32 that cooperate with the corresponding roller assemblies 13. The drive assembly 14 is located at the bottom of the sliding section 151, and the rack 33 is close to the lower rail 32.

[0077] The bearing section 152 and the self-sliding section 151 extend away from the base 3. The constraint hole 11 is opened on the bearing section 152, and the fork arm 2 slides in the first direction 91 and is engaged with the corresponding constraint hole 11. In order to reduce its own weight, the bearing member 1 is a hollow structure and is filled with a mesh reinforcement structure inside.

[0078] In addition to reversing in the first direction 91, the reversible loading platform of this application is also optimized for loading in other directions. Referring to the attached drawings, the top surface of the load-bearing section 152 of each load-bearing member 1 is hinged to a tilting platform 4, which has a transverse position parallel to the plane of the fork arm 2 (see attached drawings). Figure 1 (as shown) and the relative upright positions (see attached) Figure 10 and attached Figure 12 (as shown);

[0079] When the load-bearing components 1 are far apart, each tilting platform 4 in the horizontal position forms a loading plane parallel to the fork arm 2; when the load-bearing components 1 are close together, each tilting platform 4 moves into an upright position to avoid each other. When the load-bearing components 1 are far apart and the fork arm 2 is in the middle position (e.g., attached) Figure 1 As shown, the loading plane formed by the flipping platform 4 and the loading plane of the fork arm 2 are stacked alternately to improve loading performance.

[0080] As can be easily understood from the above, this application also discloses a transport vehicle, including a walking device and a reversible loading platform according to the above technical solution, wherein the reversible loading platform is directly or indirectly mounted on the walking device. When used in scenarios such as AGVs or other equipment that do not require lifting, the reversible loading platform is directly mounted on the walking device to provide a compact overall appearance. When used in scenarios such as forklifts or other equipment that require lifting, the reversible loading platform is mounted on the walking device via a lifting device to improve adaptability.

[0081] Similarly, this application also discloses a control method for a cargo platform, implemented based on the reversible cargo platform in the above technical solution, characterized by including...

[0082] Adjust the positioning components 12 of two of the bearing members 1 to the free state and the positioning state respectively;

[0083] The two carriers 1 are moved relative to each other or back to back. During the movement, the carrier 1 in the positioning state of the positioning component 12 drives the fork arm 2 to move relative to the other carrier 1.

[0084] The following is in conjunction with the appendix Figure 1 and appendix Figure 10 To be continued Figure 13 The working process of the reversible cargo platform in this application is illustrated by way of example.

[0085] Appendix Figure 1 In this configuration, the two load-bearing components 1 are far apart and located on opposite sides of the guide rail. When it is necessary to switch between different states, this can be achieved through the control method described above, specifically by following these steps:

[0086] Adjust the tilting platform 4 on the two support components 1 to an upright position to avoid mutual interference in subsequent processes;

[0087] According to the required orientation, adjust the positioning component 12 of the bearing member 1 located on the front side in that orientation to a free state, and adjust the positioning component 12 of the bearing member 1 located on the rear side in that orientation to a positioned state; (to adjust to the attached) Figure 10 and appendix Figure 11 Taking the state shown as an example, the attached Figure 11 The positioning component 12 of the carrier 1 located on the left side is adjusted to a free state, and the attached... Figure 11 (The positioning component 12 of the carrier 1 located on the right side is adjusted to the positioning state)

[0088] The drive unit 1 located at the rear in that orientation moves closer to the unit 1 located at the front in that orientation (i.e., the unit 12 is in a free state). During this process, the fork arm 2 moves to pass through the unit 1 located at the front in that orientation to complete the reversal.

[0089] Once the reversing process is complete, each load-bearing component 1 can move synchronously to achieve the conventional forklift 2's operation process for goods.

[0090] If adjusted to the attached Figure 12 and appendix Figure 13 The orientation shown distinguishes the positioning state of the positioning components of the adjusting carrier; if self-attached... Figure 10 Adjust to Appendix Figure 12 The status shown or self-attached Figure 12 Adjust to Appendix Figure 10 The state shown needs to be adjusted first. Figure 1 After reaching the state shown, the direction will be reversed according to the description above.

[0091] Other specific processes can be deduced from the above description without any doubt, and will not be repeated here.

[0092] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification. When technical features of different embodiments are embodied in the same drawing, it can be regarded as the drawing also disclosing examples of combinations of the various embodiments involved.

[0093] The embodiments described above are merely examples of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A reversible cargo platform, characterized in that, include: The guide rail extends in the first direction; At least two support members, each of which is positionably fitted to the guide rail, and each support member is provided with a constraint hole and a positioning component; The fork arm is slidably installed in the constraint holes of each load-bearing component. Each positioning component independently has a positioning state that restricts the positional relationship between the fork arm and the corresponding load-bearing component, and a free state that allows the fork arm to move relative to the corresponding load-bearing component. When the positioning component is in the positioning state, the fork arm moves with the corresponding load-bearing component.

2. The reversible cargo platform according to claim 1, characterized in that, The positioning component includes A positioning pin is installed on the carrier. In the positioning state, at least a portion of the positioning pin extends into the constraint hole and cooperates with the fork arm to limit the positional relationship between the fork arm and the corresponding carrier. A retainer, acting between the locating pin and the carrier, is used to apply a retaining force to the locating pin and hold the locating assembly in the locating state; A driving element drives the positioning pin to overcome the holding force of the retaining element, thereby driving the positioning assembly into the free state.

3. The reversible cargo platform according to claim 2, characterized in that, The constraint hole is complementary to the cross-sectional shape of the fork arm. The fork arm is provided with a guide groove that extends in the direction of movement of the fork arm. At least both ends of the guide groove are enlarged to form positioning holes. The positioning pin includes a pin body and a reduced diameter portion located at the end of the pin body. In the positioning state, the pin body engages with the positioning hole to achieve positioning. In the free state, the reduced diameter portion is clearance-fitted within the guide groove or the positioning hole.

4. The reversible cargo platform according to claim 2, characterized in that, The positioning pin is an integral structure including a pin body, a trigger end that cooperates with the driving component, and a guide post for installing the retaining component. The pin body and the guide post are slidably engaged on different sides of the bearing component. The trigger end is provided with a guide slope, and the driving member drives the positioning pin to move through the guide slope; there are multiple driving members and each driving member is connected to each other through a synchronous link to move synchronously; the pin body is provided with a clearance hole, and the synchronous link passes through the clearance hole through the positioning pin.

5. The reversible cargo platform according to claim 1, characterized in that, The fork arms are provided in multiple parallel configurations. The constraint holes are arranged in groups and multiple groups are provided. Each fork arm is slidably installed in a corresponding group of constraint holes, and a group of constraint holes is respectively provided on each bearing member. In the positioning state, the positioning components on each load-bearing component synchronously restrict the positional relationship between each fork arm and the corresponding load-bearing component.

6. The reversible cargo platform according to claim 1, characterized in that, The reversible loading platform also includes a base for providing the guide rail, and the load-bearing member is mounted on the base via a roller assembly; The base is provided with a rack extending in the first direction, and each bearing member is independently provided with a drive assembly that meshes with the rack.

7. The reversible cargo platform according to claim 6, characterized in that, Each load-bearing component is L-shaped and arranged in parallel. Each load-bearing component includes: The sliding section is provided with roller assemblies at both the top and bottom. The base includes an upper rail and a lower rail that cooperate with the corresponding roller assemblies. The drive assembly is located at the bottom of the sliding section, and the rack is close to the lower rail. The bearing section extends from the sliding section away from the base, the constraint hole is opened on the bearing section, and the fork arm slides in the first direction to engage with the corresponding constraint hole.

8. The reversible cargo platform according to claim 1, characterized in that, Each load-bearing component has a hinged flipping platform on the top surface of its load-bearing section. The flipping platform has a horizontal position parallel to the plane of the fork arm and a vertical position opposite to it. When the load-bearing components are far apart, each flipping platform in the horizontal position forms a load-bearing plane parallel to the fork arm; when the load-bearing components are close to each other, each flipping platform enters the vertical position to avoid each other.

9. A transport vehicle, characterized in that, It includes a walking device and a reversible cargo platform according to any one of claims 1 to 8, wherein the reversible cargo platform is directly or indirectly mounted on the walking device.

10. A control method for a cargo platform, implemented based on a reversible cargo platform according to any one of claims 1 to 8, characterized in that, include Adjust the positioning components of two of the load-bearing components to the free state and the positioning state, respectively; The two carriers are moved relative to or away from each other. During the movement, the carrier in the positioning state drives the fork arm to move relative to the other carrier.

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