Cargo support

Abstract

The utility model provides a goods support, a shuttle vehicle can move in the goods support, and the goods support comprises a stand column, a supporting frame and a positioning part. The supporting frame is fixedly connected with the stand column and provided with a supporting face extending along the horizontal plane so as to bear the tray. The positioning part is arranged on the supporting frame, and the positioning part protrudes or sinks relative to the supporting face in the vertical direction. The bottom face of the tray is provided with a matching structure matched with the positioning part, and the shuttle vehicle can move in the horizontal plane and drive the tray to move in the vertical direction so that the matching structure can be aligned with the positioning part. According to the embodiment, the positioning part and the matching structure can be matched with each other, movement of the tray in the horizontal plane is limited, meanwhile, movement of the tray in the vertical direction is not affected, the shuttle vehicle can store and take the tray conveniently, an existing cargo support is slightly changed, cost is low, the tray is fixed in a three-dimensional space, and the space is saved. The risk that the tray slides can be effectively reduced, and extra warehouse space does not need to be occupied.

Description

Technical Field

[0001] The utility model generally relates to the technical field of storage equipment, in particular to a cargo support. Background Art

[0002] In the intelligent management storage system, the shuttle vehicle is used to place the goods at the predetermined position of the cargo rack, or to take the goods out from the predetermined position of the cargo rack. In order to facilitate unified management and improve the stability of the cargo rack, the goods are usually placed on the pallet and transported by the shuttle vehicle together with the pallet, which is conducive to distributing the weight and reducing the risk of overturning and falling.

[0003] Cargo racks are easily affected by the environment in the warehouse, such as collisions with operators or mechanical equipment, or mechanical vibrations in the working environment of the cargo racks, which can easily cause the cargo on the cargo racks to shift and lead to safety accidents.

[0004] To address the risk of cargo displacement, existing technical solutions mainly prevent cargo displacement by increasing the static friction between the pallet or cargo and the support frame, or by increasing the size of the support frame to prevent cargo from falling. These two methods require complex processing, reduce warehouse space utilization, and have low reliability, and still pose a great risk.

[0005] The contents of the background technology section are merely the technologies known to the inventors and do not necessarily represent the prior art in the field. Utility Model Content

[0006] In view of one or more defects in the prior art, the utility model provides a cargo support, in which a shuttle vehicle can move, and the cargo support comprises:

[0007] Column;

[0008] A support frame, the support frame is fixedly connected to the column, and the support frame has a support surface extending along a horizontal plane to carry the tray; and

[0009] A positioning portion, the positioning portion is arranged on the support frame, and the positioning portion is convex or concave relative to the support surface in a vertical direction;

[0010] The bottom surface of the tray has a matching structure matching the positioning portion, and the shuttle can move in a horizontal plane and drive the tray to move in a vertical direction so that the matching structure and the positioning portion are aligned.

[0011] According to one aspect of the utility model, the cargo rack includes a plurality of the positioning portions, and the plurality of the positioning portions are not collinear.

[0012] According to one aspect of the utility model, the cargo rack further comprises:

[0013] A track, the track is fixedly connected to the column and extends in a horizontal plane, and the shuttle moves along the track;

[0014] The support frame is located above the track, and the support frame includes a strip crossbeam or a plurality of support blocks arranged at intervals; when the support frame includes the strip crossbeam, the strip crossbeam is parallel to the extension direction of the track.

[0015] According to one aspect of the utility model, the track includes two parallel tracks, the support frame includes two strip-shaped crossbeams, and the two strip-shaped crossbeams are respectively arranged above the two parallel tracks; wherein each of the strip-shaped crossbeams is provided with at least one positioning portion.

[0016] According to one aspect of the utility model, the support frame also includes a limiting portion, which is arranged on the side of the support surface along a direction perpendicular to the support surface, and the limiting portion extends upward relative to the support surface to limit the movement of the tray in a horizontal plane along a direction perpendicular to the support frame.

[0017] According to one aspect of the utility model, the limiting portions are arranged at intervals on the support frame, or the limiting portions cover the entire length of the support surface.

[0018] According to one aspect of the utility model, when the tray is placed on the support surface, the bottom surface of the tray is pressed against the support surface, and a gap is provided between the side surface of the positioning portion and the side surface of the matching structure.

[0019] According to one aspect of the utility model, the side surface of the positioning portion and / or the matching structure is a curved surface or a wedge-shaped surface.

[0020] According to one aspect of the utility model, a skirt extending along the track is provided on the outer side of the bottom surface of the tray, and the matching structure is formed at the corner position of the skirt.

[0021] According to one aspect of the utility model, the track includes a first track and a second track, the first track, the second track and the column are perpendicular to each other and intersect each other, and the shuttle is a four-way shuttle;

[0022] The support frame includes a plurality of support blocks arranged at intervals, wherein the support blocks are located above the intersection of the first track and the second track, and the positioning portion is arranged on a support surface of at least one of the support blocks.

[0023] Compared with the prior art, the embodiment of the utility model provides a cargo rack, wherein a positioning portion is provided on the support frame, and a matching structure is provided on the bottom surface of the pallet, and the shuttle vehicle is controlled to drive the pallet to move in the vertical direction, so that the positioning portion and the matching structure can cooperate with each other, limit the movement of the pallet in the horizontal plane, and do not affect the movement of the pallet in the vertical direction, so that the shuttle vehicle can store and retrieve the pallet. The structure of this embodiment is simple, the modification of the existing cargo rack is small, the cost is low, and the pallet is fixed in a three-dimensional space, which can effectively reduce the risk of the pallet sliding, and no additional space in the warehouse is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 is a top view of a cargo rack in some embodiments of the present utility model;

[0026] Figure 2 It is a side view of the cargo rack in some embodiments of the utility model;

[0027] Figure 3A and Figure 3B It is a schematic diagram of the cooperation between the tray and the positioning part in some examples of the utility model;

[0028] Figure 4A and Figure 4B Schematic diagram of the cooperation between the tray and the positioning part in other embodiments of the utility model;

[0029] Figure 5 It is a schematic diagram of the spacing arrangement of support blocks in some embodiments of the utility model. DETAILED DESCRIPTION

[0030] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0031] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 limiting the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" 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, an electrical connection, or mutual communication; it can be directly connected, or indirectly connected 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 utility model can be understood according to specific circumstances.

[0033] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0035] The following describes embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0036] Figure 1 and Figure 2 The structure of the cargo support 100 according to the embodiment of the utility model is shown below. Figure 1 The cargo rack 100 will be described.

[0037] In this embodiment, the cargo rack 100 is used to store cargo, and the shuttle can move in the cargo rack 100. The cargo rack 100 cooperates with the shuttle to store cargo at a predetermined location or to take cargo out from a predetermined location. The cargo is carried by the pallet 200, which improves the stability of the cargo placed on the cargo rack 100 and is suitable for cargo of different external sizes and cargo with a certain fluidity.

[0038] like Figure 1 and Figure 2 As shown, the cargo rack 100 includes a column 110, a support portion 120 and a positioning portion 130. The column 110 is, for example, arranged in a vertical direction. Specifically, one end of the column 110 may be supported on the ground and extend upward. In a preferred embodiment of the utility model, the cargo rack 100 may be provided with a plurality of cargo storage layers for storing cargo along the extension direction of the column 110 to improve the utilization rate of the warehouse space. The height of the cargo rack 100 is pre-set according to the structural strength of the column 110, the bearing capacity of the ground and the type of cargo.

[0039] The support frame 120 is fixedly connected to the column 110, and the support frame 120 has a support surface 121 extending along a horizontal plane, and the support surface 121 is used to carry the tray 200. Figure 1 In the top view shown in , the plane of the support frame 120 facing the outside of the paper is the support surface 121, and the tray 200 can be placed above the support surface 121.

[0040] like Figure 2As shown, the positioning portion 130 is disposed on the support frame 120, and the positioning portion 130 is raised or recessed relative to the support surface 121 in the vertical direction. Specifically, the positioning portion 130 can be integrally formed with the support frame 120. For example, the support frame 120 is made of a metal material, and a raised or recessed positioning portion 130 can be formed on one side of the support surface 121 during the casting or stamping process. In a preferred embodiment of the utility model, it is also possible to modify the existing cargo rack, for example, a through hole or a countersunk hole is processed on one side of the support surface 121 in the support frame 120 as the positioning portion 130. Furthermore, the through hole or the countersunk hole can be a threaded hole, and a bolt is provided at the position of the through hole or the countersunk hole to form a positioning portion 130 protruding from the support surface 121. Modifying the positioning portion 130 on the basis of the existing cargo rack is simple in operation and can reduce production costs.

[0041] The bottom surface of the tray 200 has a matching structure 210 (such as Figure 3A-Figure 4B As shown), specifically, for example, when the positioning portion 130 is configured to protrude relative to the support surface 121, the matching structure 210 can be configured to be a recess or a notch; when the positioning portion 130 is configured to be recessed relative to the support surface 121, the matching structure 210 can be configured to be a protrusion on the bottom surface of the tray 200.

[0042] The shuttle is configured to move in a horizontal plane and drive the tray 200 to move in a vertical direction so that the matching structure 210 can be aligned with the positioning portion 130. For example, in a specific embodiment of the present invention, during the process of placing goods, the tray 200 and the goods placed on the tray 200 are located on the top of the shuttle, and the shuttle moves in a horizontal plane, driving the tray 200 and the goods to move above the support frame 120, and driving the tray 200 to move in a vertical direction so that the positioning portion 130 and the matching mechanism 210 are aligned, and the tray 200 is placed on the support frame 120.

[0043] In this embodiment, the positioning portion 130 is raised or recessed relative to the support surface 121, and the positioning portion 130 and the matching structure 210 match each other. The constraint relationship between the positioning portion 130 and the matching structure 210 can limit the movement of the pallet 200 in the horizontal plane, and the stability of the pallet 200 on the cargo rack 100 can be improved by limiting the position of the three-dimensional space. In addition, the structures of the support frame 120 and the positioning portion 130 in this embodiment are simple and can be modified on the basis of the existing cargo rack. At the same time, the matching structure 210 on the bottom surface of the pallet 200 is simple in structure. For pallets 200 of some specifications, the original structure of the pallet 200 can also be used as the matching structure 210 without additional processing, which will be explained in detail in the subsequent embodiments.

[0044] According to a preferred embodiment of the utility model, the cargo rack 100 includes a plurality of positioning portions 130, and the plurality of positioning portions 130 in this embodiment are not on the same straight line. In this embodiment, the movement of the pallet 200 in the horizontal plane is limited by the positioning portions 130 and the matching structure 210. A plurality of positioning portions 130 are provided, and the plurality of positioning portions 130 are not on the same straight line, which can further improve the stability of the pallet 200 on the cargo rack 100 and prevent the pallet 200 from tilting and tipping over. Preferably, the support frame 120 includes parallel bar beams 122, and the two sides of the pallet 200 are overlapped on the bar beams 122, and the plurality of positioning portions 130 can be respectively provided on the bar beams 122 on both sides.

[0045] like Figure 1 As shown, in a preferred embodiment of the present invention, the cargo support 100 further includes a track 140, the track 140 is fixedly connected to the column 110 and extends in a horizontal plane, and the shuttle is configured to be able to move along the track 140. Preferably, the track 140 is configured as two parallel tracks, and rollers corresponding to the track width are provided on the shuttle to improve the stability of the shuttle movement.

[0046] In this embodiment, the support frame 120 is arranged above the track 140, and the shuttle moves along the track 140 in a horizontal plane, and can move to the right below the support frame 120, and drive the tray 200 to move downward, so as to place the tray 200 on the support frame 120. Alternatively, the shuttle lifts the tray 200 upward, so that the matching structure 210 and the positioning portion 130 are separated, and drives the tray 200 to move suspended above the support frame 120.

[0047] The support portion 120 may be specifically configured to include a bar-shaped crossbeam 122, for example Figure 2 As shown in , the bar beam 122 can be arranged to be parallel to the extension direction of the track 140. When the shuttle moves along the track 140, the pallet 200 and the goods are lifted to a position higher than the support frame 120, and the bar beam parallel to the track 140 will not block the pallet 200 and the goods.

[0048] In other embodiments of the present invention, the support frame 120 may also be configured to include a plurality of support blocks 123 (eg, Figure 5 Detailed description will be given in the subsequent embodiments.

[0049] According to a preferred embodiment of the present utility model, Figure 1As shown, the track 140 includes two parallel tracks, rollers are arranged on both sides of the shuttle, and are crimped above the two parallel tracks. The support frame 120 includes two bar beams 122, and the two bar beams 122 are respectively arranged above the two parallel tracks. Preferably, the two bar beams 122 are symmetrically arranged relative to the center line of the two parallel tracks, and can be arranged on the inside or outside of the two parallel tracks, depending on the size of the pallet 200. In this embodiment, at least one positioning portion 130 is arranged on each bar beam 122, and the positioning portions 130 are preferably symmetrically arranged, which is conducive to improving the limiting and fixing effect of the positioning portion 130 on the pallet 200.

[0050] like Figure 1 As shown, in a preferred embodiment of the present invention, the support frame 120 further includes a limiting portion 124, which is arranged on the side of the support surface 121 in a direction perpendicular to the support surface 121, and the limiting portion 124 extends upward relative to the support surface 121. The limiting portion 124 can be integrally formed with the support frame 120, or can be fixed to the side of the support frame 120 by welding, riveting, etc. The limiting portion 124 protrudes from the support surface 121 in the vertical direction, and can limit the tray 200 in the extension direction perpendicular to the support frame 120. For example Figure 1 As shown in FIG. 1 , the support frame 120 includes two bar-shaped beams 122 , and the limiting portions 124 can be disposed on both sides of the bar-shaped beams 122 . The limiting portions 123 can be used to block the movement of the tray 200 along the X direction.

[0051] For example Figure 1 As shown in the preferred embodiment of the present utility model, the limiting portion 124 can be arranged at intervals on the support frame 120. In other embodiments, the limiting portion 124 can also be arranged to cover the entire length of the support surface 121, wherein the length of the support surface 121 represents the length of the support surface 121 at a certain distance. Figure 1 The length in the Y direction, for example, the support frame 120 includes a strip beam 122, and the limit portion 124 can be set to be equal to the length of the strip beam 122. Specifically, the support surface 121 and the limit portion 124 in the support frame 120 can be made of prefabricated profiles, such as angle irons.

[0052] like Figure 3A and Figure 4AAs shown, according to a preferred embodiment of the utility model, when the pallet 200 is placed on the support surface 121, the bottom surface of the pallet 200 is pressed against the support surface 121, and there is a gap between the side of the positioning portion 130 and the side of the matching structure 210. In this embodiment, the positioning portion 130 and the matching structure 210 are set to different sizes, for example, the positioning portion 130 protrudes from the support surface 121, and the size of the matching structure 210 is set to be slightly larger than the size of the positioning portion 130, or is set in a semi-open form, so as to avoid the positioning portion 130 and the matching structure 210 being closely fitted, which affects the process of placing and removing the pallet 200, and reduces the risk of the pallet 200 overturning. On the other hand, there is a gap between the side of the positioning portion 130 and the side of the matching structure 210, so that the pallet 200 has a certain displacement margin within the range of the positioning portion 130, which is conducive to improving the overall stability of the cargo rack 100, absorbing deformation, and preventing internal stress concentration from causing structural damage. At the same time, the requirements for processing accuracy are low, and the production cost can be reduced, and processing can be performed on the basis of the existing cargo rack.

[0053] Figure 3A-Figure 4B The following shows the matching forms of the tray 200 and the positioning portion 130 in different embodiments of the present invention. Figure 3A-Figure 4B Provide explanation.

[0054] Figure 3A and Figure 3B They are cross-sectional views of the tray 200 and the positioning portion 130 in different directions in some embodiments of the present invention, wherein Figure 3A correspond Figure 1 The Y direction shown in Figure 3B correspond Figure 1 In this embodiment, the side surface of the positioning portion 130 can be set as a curved surface, for example Figure 3A and Figure 3B As shown in , the positioning portion 130 protrudes from the support surface 121, and the surface of the positioning portion 130 is substantially spherical. In different embodiments of the present invention, the positioning portion 130 may also be configured as other curved surfaces. In the process of the shuttle driving the tray 200 to move from top to bottom to place the tray 200 on the support frame 120, the placement position of the tray 200 on the shuttle and the positioning position of the shuttle may have errors. The side of the positioning portion 130 can guide the movement of the tray 200 from top to bottom to place the tray 200 roughly in the center.

[0055] In other embodiments of the present invention, Figure 4A and Figure 4BAs shown, the positioning portion 130 is recessed relative to the supporting surface 121. For example, the positioning portion 130 is a recessed notch, and the matching structure 210 protrudes from the bottom surface of the tray 200. The side surfaces of the positioning portion 130 and the side surfaces of the matching structure 210 can also be set as wedge-shaped surfaces, which can also guide the movement of the tray 200 in the vertical direction.

[0056] According to a preferred embodiment of the present utility model, Figure 3A and Figure 3B As shown, a skirt 220 extending along the track 140 is provided on the outer side of the bottom surface of the tray 200 , wherein the corner position of the skirt 220 can serve as the matching structure 210 in this embodiment.

[0057] In actual applications, in order to facilitate the taking of the pallet 200 and to enable the pallet 200 to be stacked vertically, the bottom surface of the pallet 200 is usually not set to a flat surface. For example, the bottom surface of the pallet 200 is provided with a groove that can accommodate the fork tines of a forklift. In this embodiment, the original structure of the pallet 200 can be used as the mechanism 210 that cooperates with the positioning portion 130, further reducing the cost, and at the same time, it will not cause too much impact on the structural stability of the pallet 200 itself.

[0058] like Figure 5 As shown, according to a preferred embodiment of the utility model, the track 140 includes a first track 141 and a second track 142, and the first track 141, the second track 142 and the column 110 are perpendicular to each other and intersect each other. In this embodiment, the first track 141 and the second track 142 are both arranged in a horizontal plane, and the first track 141 and the second track 142 are perpendicular to each other, and the shuttle can move along the first track 141 and the second track 142, and the shuttle is a four-way shuttle.

[0059] In this embodiment, the support frame 120 includes a plurality of support blocks 123 arranged at intervals, and the support blocks 123 are located above the intersection of the first track 141 and the second track 142. The positioning portion 130 is arranged on the support surface 121 of at least one support block 123. The intersection of the first track 141 and the second track 142 is the placement position of the tray 200. For example, the first track 141 and the second track 142 each include two parallel tracks, and the intersection of the first track 141 and the second track 142 is approximately in the range of a square. The support portion 120 includes, for example, four support blocks 123, and the four support blocks 123 can be approximately arranged at the positions of the four corners of the square. Further, the bottom surface of the tray 200 can also be arranged to be approximately square.

[0060] In this embodiment, the four-way shuttle can be set to move along the first track 141 to the placement position of the tray 200 (the intersection position of the first track 141 and the second track 142), and can also move along the second track 142 to the placement position of the tray 200. Compared with the bar beam parallel to a certain track, the support blocks 123 spaced apart from each other in this embodiment will not block the movement direction of the four-way shuttle, thereby improving the freedom of the movement control of the four-way shuttle. Although the contact area between the support part 120 and the tray 200 is reduced, the positioning part 130 can be used to limit the displacement and rotation of the tray 200.

[0061] Finally, it should be noted that the above description is only an embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A cargo rack, characterized in that: The shuttle can move within the cargo support, and the cargo support includes: Column; A support frame, the support frame is fixedly connected to the column and has a support surface extending along a horizontal plane to carry the tray; and A positioning portion, the positioning portion is arranged on the support frame, and the positioning portion is convex or concave relative to the support surface in a vertical direction; The bottom surface of the tray has a matching structure matching the positioning portion, and the shuttle can move in a horizontal plane and drive the tray to move in a vertical direction so that the matching structure and the positioning portion are aligned.

2. The cargo rack according to claim 1, characterized in that: The plurality of positioning portions are included, and the plurality of positioning portions are not collinear.

3. The cargo rack according to claim 1, characterized in that: Also includes: A track, the track is fixedly connected to the column and extends in a horizontal plane, and the shuttle moves along the track; The support frame is located above the track, and the support frame includes a strip crossbeam or a plurality of support blocks arranged at intervals; when the support frame includes the strip crossbeam, the strip crossbeam is parallel to the extension direction of the track.

4. The cargo rack according to claim 3, characterized in that: The track includes two tracks parallel to each other, and the support frame includes two strip-shaped crossbeams, and the two strip-shaped crossbeams are respectively arranged above the two tracks parallel to each other; wherein each of the strip-shaped crossbeams is provided with at least one positioning portion.

5. The cargo rack according to claim 3, characterized in that: The support frame also includes a limiting portion, which is arranged on the side of the support surface along a direction perpendicular to the support surface and extends upward relative to the support surface to limit the movement of the tray in a horizontal plane along a direction perpendicular to the support frame.

6. The cargo rack according to claim 5, characterized in that: The limiting portions are arranged at intervals on the support frame, or the limiting portions cover the entire length of the support surface.

7. The cargo rack according to any one of claims 1 to 6, characterized in that: When the tray is placed on the support surface, the bottom surface of the tray is pressed against the support surface, and a gap exists between the side surface of the positioning portion and the side surface of the matching structure.

8. The cargo rack according to any one of claims 1 to 6, characterized in that: The side surfaces of the positioning portion and / or the matching structure are curved surfaces or wedge-shaped surfaces.

9. The cargo rack according to any one of claims 3 to 6, characterized in that: A skirt extending along the track is arranged on the outer side of the bottom surface of the tray, and the matching structure is formed at the corner position of the skirt.

10. The cargo rack according to claim 3, characterized in that: The track includes a first track and a second track, the first track, the second track and the column are perpendicular to each other and intersect each other, and the shuttle is a four-way shuttle; The support frame includes a plurality of support blocks arranged at intervals, wherein the support blocks are located above the intersection of the first track and the second track, and the positioning portion is arranged on a support surface of at least one of the support blocks.

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