Goods exchange trolley

Abstract

The utility model discloses a goods exchange trolley, and relates to the technical field of workshop transportation, the goods exchange trolley comprises a walking frame, an objective table and a lifting assembly, the two sides of the walking frame are an exchange side and a stop side respectively, the exchange side is provided with an exchange port for goods to pass through, and the stop side is provided with a stop rod; the objective table is located in the walking frame, the two ends of the objective table are a butt joint end and a stop end respectively, the stop end is hinged to the stop side of the walking frame through a hinge shaft, the butt joint end is located at the exchange port, and the lifting assembly is used for driving the butt joint end to ascend and descend so as to drive the objective table to rotate around the hinge shaft between a first position and a second position. When the objective table rotates to the first position, the objective table inclines downwards from the butt joint end to the stop end, and when the objective table rotates to the second position, the objective table inclines upwards from the butt joint end to the stop end. The goods exchange trolley provided by the utility model can realize automatic exchange of goods and effectively improve the exchange efficiency of the goods.

Description

Technical Field

[0001] This utility model relates to the field of workshop transportation technology, and in particular to a goods exchange trolley. Background Technology

[0002] In the process of transporting goods in the workshop, the exchange of goods between shelves and trolleys is often involved, that is, moving goods from shelves to movable trolleys, or moving goods from trolleys to shelves. Currently, after the shelves and trolleys are connected, the goods are picked up and moved manually to achieve the exchange of goods. However, for goods with large self-weight, manual handling is time-consuming, labor-intensive and inefficient. Utility Model Content

[0003] The main purpose of this utility model is to propose a goods exchange trolley, which aims to solve the technical problems of time-consuming, labor-intensive, and inefficient manual handling in the goods exchange process between shelves and trolleys in the prior art.

[0004] To achieve the above objectives, this utility model proposes a goods exchange trolley for exchanging goods with shelves. The goods exchange trolley includes a traveling frame, a loading platform, and a lifting assembly. The traveling frame has an exchange side and a stop side on both sides along a first horizontal direction. The traveling frame can travel along a second horizontal direction to the exchange side to connect with the shelf. The first horizontal direction and the second horizontal direction are perpendicular to each other. The exchange side has an exchange opening for the goods to pass through, and the stop side is equipped with a stop bar. The loading platform is located inside the traveling frame. The platform has a docking end and a stop end at its two ends along the first horizontal direction. The stop end is hinged to the stop side of the traveling frame via a hinge shaft. The docking end is located at the exchange port. The lifting assembly is used to drive the docking end to rise and fall, so as to drive the platform to rotate around the hinge shaft between a first position and a second position. When the platform rotates to the first position, the platform is tilted downward from the docking end to the stop end. When the platform rotates to the second position, the platform is tilted upward from the docking end to the stop end.

[0005] In one embodiment, the shelf is provided with a first guide rail and a second guide rail spaced vertically apart. The first guide rail is inclined upward along the traveling direction of the traveling frame, and the second guide rail is inclined downward along the traveling direction of the traveling frame. The lifting assembly includes a pulley and a connecting arm. The pulley is connected to the docking end of the platform through the connecting arm. The pulley can rotate relative to the connecting arm. The pulley can slide with the first guide rail to raise the docking end through the first guide rail. The pulley can also slide with the second guide rail to lower the docking end through the second guide rail.

[0006] In one embodiment, the platform includes a plurality of slide rails spaced apart along the second horizontal direction, each slide rail extending along the first horizontal direction, one end of each slide rail facing the stop side being connected to the hinge shaft, and one end of each slide rail facing the exchange side being connected via a horizontally arranged swing rod, the connecting arm being connected to the swing rod; each slide rail has a groove, and each groove has a plurality of rollers installed in it, the plurality of rollers being spaced apart along the extension direction of the slide rail, and the two sides of each roller being rotatably connected to the two side walls of the slide rail, the rollers being used to carry the goods.

[0007] In one embodiment, a support rod assembly is provided at the bottom of the platform. The support rod assembly includes a first support rod, a second support rod, and a telescopic rod. The first support rod extends along the second horizontal direction and is connected to both sides of the traveling frame along the second horizontal direction. Each slide rail is correspondingly provided with a second support rod and a telescopic rod. One end of the second support rod is hinged to the first support rod, and the other end of the second support rod is connected to the corresponding slide rail. The telescopic rod is vertically connected between the first support rod and the corresponding slide rail.

[0008] In one embodiment, the goods exchange trolley further includes a limiting component rotatably mounted on the exchange side of the traveling frame. The limiting component is rotatable relative to the traveling frame between a blocking position and an open position. When the limiting component is rotated to the blocking position, it blocks the goods from passing through the exchange port, and when the limiting component is rotated to the open position, it allows the goods to pass through the exchange port.

[0009] In one embodiment, the exchange side of the traveling frame is further provided with a docking beam, the docking beam having a downward-facing docking groove, the docking beam extending along the second horizontal direction, and having two openings at each end of the docking beam along its extension direction, each opening communicating with the docking groove; the shelf is provided with a docking block, the docking block being able to enter the docking groove from any of the openings and slide into the docking groove.

[0010] In one embodiment, each of the openings is gradually widened in a direction away from the other opening.

[0011] In one embodiment, an elastic buffer is provided on the side of the stop bar facing the exchange port.

[0012] In one embodiment, there are multiple platforms, which are spaced apart within the traveling frame. The stop end of each platform is hinged to the stop side of the traveling frame via a hinge shaft, and the docking end of each platform is correspondingly provided with a lifting component.

[0013] In one embodiment, each of the platforms is provided with two guide rails, each guide rail extends along the first horizontal direction and is located above the corresponding platform, and the two guide rails are respectively located at both ends of the corresponding platform along the second horizontal direction.

[0014] The goods exchange trolley proposed in this utility model hinges the stop end of the loading platform to the traveling frame and sets up a drive assembly to drive the docking end to rise and fall, allowing the loading platform to rotate between a first position and a second position around the hinge axis to adjust the tilt angle of the loading platform. When the goods docking trolley docks with the shelf, the goods on the loading platform can slide towards the stop end or towards the docking end under their own weight according to the change in the tilt angle of the loading platform, so that the goods can automatically slide into or out of the loading platform, thereby realizing automated goods exchange, reducing manual handling operations, reducing labor intensity, and effectively improving the efficiency of goods exchange. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of an embodiment of the goods exchange cart provided by this utility model from one perspective;

[0017] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0018] Figure 3 This is a structural schematic diagram from another perspective of an embodiment of the goods exchange cart provided by this utility model.

[0019] Explanation of icon numbers:

[0020] 10. Walking frame; 11. Exchange side; 12. Stop side; 13. Exchange port; 14. Stop bar; 141. Elastic buffer; 15. Guide rail; 20. Platform; 21. Docking end; 22. Stop end; 23. Slide rail; 24. Swing rod; 25. Roller; 26. Support rod assembly; 261. First support rod; 262. Second support rod; 263. Telescopic rod; 30. Lifting assembly; 31. Pulley; 32. Connecting arm; 40. Limiting assembly.

[0021] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0024] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] In this utility model, the descriptions of directions such as "up", "down", "front", "back", "left", and "right" are as follows: Figure 1 and Figure 2 The directions shown are for reference only and are used to interpret the location. Figure 1 and Figure 2 The relative positional relationship between the components in the shown posture is such that if the specific posture changes, the directional indication will also change accordingly.

[0026] During the exchange of goods between shelves and trolleys, goods are usually picked up and moved manually after the shelves and trolleys are connected. However, for goods with large weight, manual handling is time-consuming, labor-intensive, and inefficient.

[0027] This utility model proposes a goods exchange trolley for exchanging goods with shelves. The goods exchange trolley includes a traveling frame 10, a loading platform 20, and a lifting assembly 30. The traveling frame 10 has an exchange side 11 and a stop side 12 on both sides along a first horizontal direction. The traveling frame 10 can travel along a second horizontal direction to the exchange side 11 to connect with the shelf. The first and second horizontal directions are perpendicular to each other. The exchange side 11 has an exchange port 13 for goods to pass through, and the stop side 12 is equipped with a stop bar 14. The loading platform 20 is located inside the traveling frame 10. The platform 20 has a docking end 21 and a stop end 22 at its two ends along the first horizontal direction. The stop end 22 is hinged to the stop side 12 of the traveling frame 10 via a hinge shaft. The docking end 21 is located at the exchange port 13. The lifting assembly 30 is used to drive the docking end 21 to rise and fall, so as to drive the platform 20 to rotate around the hinge shaft between the first position and the second position. When the platform 20 rotates to the first position, the platform 20 is tilted downward from the docking end 21 to the stop end 22. When the platform 20 rotates to the second position, the platform 20 is tilted upward from the docking end 21 to the stop end 22.

[0028] Please see Figure 1 , Figure 1 The left and right directions in the middle are the first horizontal directions. Figure 1 The front-to-back direction in the middle is the second horizontal direction. Figure 1The vertical direction is defined as the top and bottom. The goods exchange trolley can move forward and dock with the rack, with the exchange side 11 of the goods exchange trolley facing the rack and the stop side 12 moving away from the rack. It should be noted that since the rack includes loading racks and unloading racks, the loading racks are used to load goods onto the goods exchange trolley when docking with it, and the unloading racks are used to unload goods from the goods exchange trolley when docking with it. When the goods exchange trolley docks with the loading rack, the lifting assembly 30 drives the docking end 21 to rise, and the loading platform 20 rises around the hinge axis to the first position. The loading platform 20 is tilted downward from the docking end 21 to the stop end 22. Under its own weight, the goods on the loading rack slide from the exchange port 13 onto the loading platform 20, and gradually slide from the docking end 21 to the stop end 22 until they are stopped by the stop bar 14, thus completing the loading of the goods. The goods are then exchanged from the shelf to the goods exchange trolley. When the goods exchange trolley docks with the unloading rack, the lifting assembly 30 drives the docking end 21 to fall, and the loading platform 20 falls around the hinge axis to the second position. The loading platform 20 is tilted upward from the docking end 21 to the stop end 22. Under its own weight, the goods on the loading platform 20 slide out of the loading platform 20 through the exchange port 13 and enter the unloading rack, thus completing the unloading of the goods. The goods are then exchanged from the goods exchange trolley to the shelf.

[0029] The goods exchange trolley proposed in this utility model hinges the stop end 22 of the loading platform 20 to the traveling frame 10, and sets up a drive assembly to drive the docking end 21 to rise and fall, so that the loading platform 20 can rotate around the hinge axis between a first position and a second position to adjust the tilt angle of the loading platform 20. When the goods docking trolley docks with the shelf, the goods on the loading platform 20 can slide towards the stop end 22 or towards the docking end 21 under the action of their own weight according to the change of the tilt angle of the loading platform 20, so that the goods can automatically slide into or out of the loading platform 20, thereby realizing the automated exchange of goods, reducing manual handling operations, reducing labor intensity, and effectively improving the exchange efficiency of goods.

[0030] In one embodiment, the shelf is provided with a first guide rail and a second guide rail that are spaced apart vertically. The first guide rail is inclined upward along the traveling direction of the traveling frame 10, and the second guide rail is inclined downward along the traveling direction of the traveling frame 10. The lifting assembly 30 includes a pulley 31 and a connecting arm 32. The pulley 31 is connected to the docking end 21 of the platform 20 through the connecting arm 32. The pulley 31 can rotate relative to the connecting arm 32. The pulley 31 can slide with the first guide rail to raise the docking end 21 through the first guide rail. The pulley 31 can also slide with the second guide rail to lower the docking end 21 through the second guide rail.

[0031] It should be noted that the rack includes a loading rack and an unloading rack. The loading rack is equipped with a first guide rail, and the unloading rack is equipped with a second guide rail. The first guide rail is inclined upwards and facing forward, while the second guide rail is inclined downwards and facing forward. Please refer to [link / reference]. Figure 3 When the goods exchange trolley proposed in this utility model moves forward and docks with the loading rack, the pulley 31 abuts against the upper surface of the first guide rail and slides with the first guide rail. The first guide rail lifts the docking end 21 through the connecting arm 32, thereby driving the platform 20 to rotate to the first position. When the goods exchange trolley moves forward and docks with the unloading rack, the pulley 31 abuts against the lower surface of the second guide rail and slides with the second guide rail. The second guide rail lowers the docking end 21 through the connecting arm 32, thereby driving the platform 20 to rotate to the second position. This allows the goods exchange trolley to automatically adjust the tilt angle of the platform 20 according to the different types of shelves it docks with, thereby realizing automatic exchange of goods and improving the automation level of the goods exchange trolley.

[0032] In one embodiment, the platform 20 includes a plurality of slide rails 23 spaced apart along a second horizontal direction. Each slide rail 23 extends along a first horizontal direction. One end of each slide rail 23 facing the stop side 12 is connected to a hinge shaft. One end of each slide rail 23 facing the exchange side 11 is connected by a horizontally arranged swing rod 24. A connecting arm 32 is connected to the swing rod 24. Each slide rail 23 has a groove, and a plurality of rollers 25 are installed in each groove. The rollers 25 are spaced apart along the extension direction of the slide rail 23. The two sides of each roller 25 are rotatably connected to the two side walls of the slide rail 23, and the rollers 25 are used to carry goods.

[0033] Please see Figure 1 and Figure 3 Multiple slide rails 23 are arranged in parallel, each extending from the exchange side 11 of the traveling frame 10 to the stop side 12. The end of each slide rail 23 facing the stop side 12 is connected to a hinge shaft, and the end of each slide rail 23 facing the exchange side 11 is connected to a swing rod 24. A connecting arm 32 is connected to the swing rod 24 and extends downwards. When the roller slides in contact with the first or second guide rail, the connecting arm 32 drives the swing rod 24 to rise or fall, thereby causing the swing rod 24 to drive the ends of the multiple slide rails 23 facing the exchange side 11 to rise or fall together. Multiple rollers 25 are installed on each slide rail 23, allowing the goods to roll and engage with the rollers 25 as they slide along the slide rail 23 under their own weight, reducing friction between the goods and the platform 20 during movement and further improving the smoothness of goods movement.

[0034] In one embodiment, a support rod assembly 26 is provided at the bottom of the platform 20. The support rod assembly 26 includes a first support rod 261, a second support rod 262, and a telescopic rod 263. The first support rod 261 extends along a second horizontal direction and is connected to both sides of the traveling frame 10 along the second horizontal direction. Each slide groove is provided with a second support rod 262 and a telescopic rod 263. One end of the second support rod 262 is hinged to the first support rod 261, and the other end of the second support rod 262 is connected to the corresponding slide rail 23. The telescopic rod 263 is vertically connected between the first support rod 261 and the corresponding slide rail 23.

[0035] Please see Figure 2 Each slide rail 23 is provided with a second support rod 262 and a telescopic rod 263 below it. The second support rod 262 is supported at the end of the slide rail 23 facing the exchange side 11 and is hinged to the first support rod 261. The telescopic rod 263 is supported at the middle of the slide rail 23. When the slide rail 23 rotates around the hinge axis, the second support rod 262 rotates around the first support rod 261, and the telescopic rod 263 extends and retracts relative to the first support rod 261 to ensure stable support for the slide rail 23 during rotation, further improving the rotational stability and load-bearing capacity of the slide rail 23.

[0036] In one embodiment, the goods exchange trolley further includes a limiting component 40, which is rotatably mounted on the exchange side 11 of the traveling frame 10. The limiting component 40 can rotate relative to the traveling frame 10 between a blocking position and an open position. When the limiting component 40 is rotated to the blocking position, it blocks the goods from passing through the exchange port 13, and when the limiting component 40 is rotated to the open position, it allows the goods to pass through the exchange port 13.

[0037] Please see Figure 1 The limiting assembly 40 includes a limiting rod rotatably connected to the traveling frame 10. When in the blocking position, the limiting rod rotates to extend into the exchange port 13 to prevent goods from passing through the exchange port 13 and sliding out of the goods exchange trolley. When in the open position, the limiting rod rotates outside the exchange port 13, allowing goods to pass through and be exchanged. It can be noted that the limiting assembly 40 can be equipped with a motor to control the rotation of the limiting rod. Therefore, when the limiting assembly 40 includes multiple limiting rods, the motor can uniformly control multiple limiting rods, improving control efficiency.

[0038] In one embodiment, the exchange side 11 of the traveling frame 10 is also provided with a docking beam. The docking beam has a docking groove with the slot facing downward. The docking beam extends along the second horizontal direction, and two openings are respectively opened at both ends of the docking beam along its extension direction. Each opening communicates with the docking groove. A docking block is provided on the shelf. The docking block can enter the docking groove from any opening and slide with the docking groove.

[0039] It should be noted that docking blocks are installed at the positions corresponding to the docking beams on the shelf. When the goods exchange trolley docks with the shelf in the second horizontal direction, the docking block can extend into the docking slot through the opening, and the docking block slides into the slot wall to guide the movement direction of the goods exchange trolley through the slot wall, effectively improving the docking accuracy between the goods exchange trolley and the shelf.

[0040] In one embodiment, each opening is arranged to gradually widen in a direction away from another opening.

[0041] Furthermore, the cross-sectional area of ​​the connecting beam at the opening is larger than that at other locations, and the cross-sectional area of ​​the opening gradually increases in the direction away from the other opening, making the opening funnel-shaped. When the goods exchange trolley docks with the rack, it facilitates the smooth insertion of the docking block on the rack into the opening. The gradually decreasing cross-sectional area of ​​the opening towards the middle of the connecting beam provides a guiding effect for the docking block, facilitating precise docking between the rack exchange trolley and the rack.

[0042] In one embodiment, a resilient buffer 141 is provided on the side of the stop bar 14 facing the exchange port 13. When goods are loaded from the shelf onto the goods exchange trolley, the goods slide from the exchange side 11 to the stop side 12. The resilient buffer 141 can absorb the impact force of the goods on the stop bar 14, reduce the risk of damage to the goods, and provide protection for the stop bar 14.

[0043] In one embodiment, there are multiple platforms 20, which are spaced apart within the vehicle frame 10. The stop end 22 of each platform 20 is hinged to the stop side 12 of the vehicle frame 10 via a hinge shaft, and a lifting component 30 is correspondingly provided at the docking end 21 of each platform 20.

[0044] Please see Figure 1 Multiple loading platforms 20 are spaced apart within the traveling frame 10, and each loading platform 20 is equipped with a corresponding hinge shaft and drive assembly, so that each loading platform 20 can rotate around the corresponding hinge shaft under the drive of the corresponding drive assembly. The goods exchange trolley can dock with the loading rack and unloading rack at the same time, and realize the exchange of goods between each loading platform 20 at the same time, significantly improving the exchange efficiency.

[0045] In one embodiment, each platform 20 is provided with two guide rails 15, each guide rail 15 extends along a first horizontal direction and is located above the corresponding platform 20, and the two guide rails 15 are respectively located at both ends of the corresponding platform 20 along a second horizontal direction.

[0046] Please see Figure 1Guide rails 15 are provided on both the front and rear sides of the platform 20. Each guide rail 15 is located above the platform 20, so that when the goods slide on the platform 20, the two sides of the goods can slide along the guide rails 15. The guide rails 15 guide the goods and keep the goods stable during the movement.

[0047] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A goods exchange trolley, characterized in that, The goods exchange trolley is used to exchange goods with the shelves. The goods exchange trolley includes a traveling frame, a loading platform, and a lifting assembly. The traveling frame has an exchange side and a stop side on both sides along the first horizontal direction. The traveling frame can travel along the second horizontal direction to the exchange side to dock with the shelf. The first horizontal direction and the second horizontal direction are perpendicular to each other. The exchange side has an exchange port for the goods to pass through, and the stop side is provided with a stop bar. The platform is located inside the vehicle frame. The two ends of the platform along the first horizontal direction are a docking end and a stop end, respectively. The stop end is hinged to the stop side of the vehicle frame via a hinge shaft. The docking end is located at the exchange port. The lifting assembly is used to drive the docking end to rise and fall, so as to drive the platform to rotate around the hinge shaft between a first position and a second position. When the platform rotates to the first position, the platform is tilted downward from the docking end to the stop end. When the platform rotates to the second position, the platform is tilted upward from the docking end to the stop end.

2. The goods exchange trolley as described in claim 1, characterized in that, The shelf is provided with a first guide rail and a second guide rail that are spaced apart vertically. The first guide rail is inclined upward along the traveling direction of the traveling frame, and the second guide rail is inclined downward along the traveling direction of the traveling frame. The lifting assembly includes a pulley and a connecting arm. The pulley is connected to the docking end of the platform via the connecting arm. The pulley can rotate relative to the connecting arm. The pulley can slide in cooperation with the first guide rail to raise the docking end via the first guide rail. The pulley can also slide in cooperation with the second guide rail to lower the docking end via the second guide rail.

3. The goods exchange trolley as described in claim 2, characterized in that, The platform includes a plurality of slide rails spaced apart along the second horizontal direction, each slide rail extending along the first horizontal direction, one end of each slide rail facing the stop side being connected to the hinge shaft, and one end of each slide rail facing the exchange side being connected by a horizontally arranged swing rod, the connecting arm being connected to the swing rod; Each of the slide rails has a groove, and multiple rollers are installed in each groove. The multiple rollers are spaced apart along the extension direction of the slide rail. The two sides of each roller are rotatably connected to the two side walls of the slide rail, and the rollers are used to carry the goods.

4. The goods exchange trolley as described in claim 3, characterized in that, The bottom of the platform is provided with a support rod assembly, which includes a first support rod, a second support rod, and a telescopic rod. The first support rod extends along the second horizontal direction and is connected to both sides of the traveling frame along the second horizontal direction. Each slide rail is provided with a second support rod and a telescopic rod. One end of the second support rod is hinged to the first support rod, and the other end of the second support rod is connected to the corresponding slide rail. The telescopic rod is vertically connected between the first support rod and the corresponding slide rail.

5. The goods exchange trolley as described in claim 1, characterized in that, The goods exchange trolley also includes a limiting component, which is rotatably mounted on the exchange side of the traveling frame. The limiting component can rotate relative to the traveling frame between a blocking position and an open position. When the limiting component rotates to the blocking position, it blocks the goods from passing through the exchange port, and when the limiting component rotates to the open position, it allows the goods to pass through the exchange port.

6. The goods exchange cart as described in any one of claims 1 to 5, characterized in that, The interchange side of the traveling frame is also provided with a docking beam. The docking beam has a docking groove with the slot facing downward. The docking beam extends along the second horizontal direction, and two openings are respectively opened at both ends of the docking beam along its extension direction. Each opening communicates with the docking groove. The shelf is provided with a docking block. The docking block can enter the docking groove from any of the openings and slide with the docking groove.

7. The goods exchange cart as described in claim 6, characterized in that, Each of the openings is gradually widened in the direction away from the other opening.

8. The goods exchange cart as described in any one of claims 1 to 5, characterized in that, An elastic buffer is provided on the side of the stop bar facing the exchange port.

9. The goods exchange cart as described in any one of claims 1 to 5, characterized in that, The number of the loading platforms is multiple, and the multiple loading platforms are spaced apart in the traveling frame. The stop end of each loading platform is hinged to the stop side of the traveling frame through a hinge shaft, and the docking end of each loading platform is correspondingly provided with a lifting component.

10. The goods exchange cart as described in claim 9, characterized in that, Each of the aforementioned platforms is provided with two guide rails, each guide rail extends along the first horizontal direction and is positioned above the corresponding platform, with the two guide rails respectively positioned at both ends of the corresponding platform along the second horizontal direction.

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