Profile unit and storage rack

Abstract

The utility model discloses a sectional material unit which comprises a first bearing plate, a second bearing plate and a front baffle, wherein the first bearing plate, the second bearing plate and the front baffle integrally extend left and right. The first bearing plate is provided with a first front edge and a first rear edge; the second bearing plate is provided with a second front edge and a second rear edge, and the second bearing plate and the first bearing plate are parallel up and down by taking the plate surface of the first bearing plate as the relative upper part; the front baffle plate is provided with an upper edge and a lower edge, and the plate surface of the front baffle plate is provided with a groove and a locking hole; the upper edge is connected with the first front edge, and the lower edge is connected with the second front edge; the groove extends in the length extending direction of the front baffle, and the opening direction of the groove faces the side, away from the first rear edge, of the front baffle. The center line in the width direction of the front baffle serves as a first center shaft, the centers of the locking holes are located in the first center shaft, and the multiple locking holes are evenly distributed along the first center shaft. The section bar unit is high in applicability; the utility model further discloses a storage shelf applying the profile unit. According to the technical scheme, installation difficulty can be reduced, and bearing capacity is improved.

Description

Technical Field

[0001] This utility model relates to the field of warehouse racking, and in particular to a profile unit and a warehouse racking. Background Technology

[0002] Common warehouse rack beams and uprights are made of square tubing, which is usually bent and then welded by the manufacturer. This results in beams and uprights with fixed dimensions and a relatively large weight. Users need to drill additional holes to install accessories on the racks later. Moreover, excessive welding processes produce a large amount of harmful gases, which is not conducive to energy conservation and emission reduction. Utility Model Content

[0003] The purpose of this utility model is to provide a profile unit and a storage rack to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: First, this utility model provides a profile unit, comprising:

[0005] The first bearing plate is set horizontally and extends to the left and right as a whole. The surface of the first bearing plate has a first front edge and a first rear edge.

[0006] The second support plate is located below the first support plate and is parallel to the first support plate. The second support plate extends to the left and right as a whole, and the surface of the second support plate has a second front edge and a second rear edge.

[0007] A front baffle extends horizontally and vertically, with its surface relatively vertical. The front baffle has an upper edge and a lower edge, and its surface is provided with a groove and a locking hole. The upper edge is connected to the first front edge, and the lower edge is connected to the second front edge. The groove extends horizontally, with its recessed direction facing rearward. The centerline of the front baffle's vertical height is used as the first central axis, and the center of the locking hole is located on the first central axis. Multiple locking holes are evenly distributed along the first central axis.

[0008] It should be noted that those skilled in the art should clearly understand that in the description of the technical solution of this utility model, directional designations such as "up," "down," "horizontal," and "vertical" are used for ease of structural description. However, these do not constitute a strict limitation on the technical features, but are merely a relative positional coordinate expression. If the first support plate extends vertically up and down, then naturally, the second support plate, parallel to the first support plate, would be located to its left or right. The positions of other technical features should also be adjusted accordingly for ease of understanding.

[0009] Compared to the profile units used in traditional warehouse racking, the profile unit provided by this utility model has grooves extending in the left-right direction, i.e., along the length of the front baffle. This gives the profile unit a bent ridge structure in the length direction, thus improving its bending resistance when subjected to vertical loads. The locking holes on the front baffle, located on the first central axis, provide basic mounting holes for subsequent assembly of larger assemblies. For example, two profile units can be placed back-to-back and secured with bolts through the corresponding locking holes and nuts, forming an I-beam-like profile. Alternatively, when other profiles need to be connected to this utility model, they can also be connected through the locking holes. The first and second bearing plates can be used for bonding and leveling during assembly, and also serve as load-bearing surfaces for warehouse racking and other structures. The profile unit of this utility model is characterized by strong versatility and high bending resistance.

[0010] As an extension of the above solution, the profile unit further includes: a first mounting hole group disposed on the front baffle, the first mounting hole group including a first mounting hole and a second mounting hole, symmetrical about the first central axis, with the first mounting hole located above the first central axis. By providing a symmetrical first mounting hole group on the front baffle, the product's weight can be further reduced without compromising structural strength. Simultaneously, the first mounting hole group can also be used to install pallets or other accessories, or to connect identical profile units to form a storage rack, giving the profile unit structure good assembly performance.

[0011] As an extension of the above solution, the first rear edge extends downwards and then towards the front baffle to form a first bending structure; the second rear edge extends upwards and then towards the front baffle to form a second bending structure; the first bending structure and the second bending structure are aligned vertically. The first and second bending structures further strengthen the rigidity of the first and second support plates, improve the bending strength of the profile unit, and allow for the hanging of items. Furthermore, the bending structures prevent the edges of the first and second support plates of the profile unit from being too sharp. The vertical alignment of the first and second bending structures improves the overall consistency of the product, making the product structure more symmetrical and increasing interchangeability during installation.

[0012] As an extension of the above solution, the profile unit further includes: a second mounting hole group, the second mounting hole group comprising:

[0013] A third mounting hole is provided in the first support plate;

[0014] A fourth mounting hole is provided on the second support plate, and the third mounting hole is coaxial with the fourth mounting hole.

[0015] Because the third mounting hole and the fourth mounting hole are coaxial, the profile unit can be flipped up and down during use, offering good interchangeability. The second mounting hole group can also be used to connect the same profile unit or other accessories. This structural design gives the profile unit better installation performance compared to traditional square tube beams, facilitating assembly and further reducing the product's weight without changing the structural strength of the profile unit.

[0016] As an extension of the above solution, there are multiple grooves, which are evenly arranged vertically with the first central axis as the axis of symmetry, and the multiple grooves are parallel to each other. By setting multiple symmetrical grooves on the profile unit, the profile unit can be made more resistant to bending, and the convenience of using the profile unit can be improved. It can be flipped upside down and interchanged during use.

[0017] As an extension of the above solution, the locking hole is an oblong hole. Compared to a conventional round hole, the oblong hole provides a certain amount of installation allowance for the bolt, which is beneficial for adjusting the height difference between different profile units when assembling the profile units into columns. Alternatively, if there are situations where it is necessary to fine-tune the height difference between two mating profile units, this can also be achieved through the oblong hole. Furthermore, when installing the profile unit with other accessories, the oblong shape of the locking hole also allows the profile unit to have better adaptability.

[0018] Based on the above-mentioned solutions, this utility model also provides a storage rack, comprising: a storage layer having at least two parallel long beams, each end of which is connected to an upright. The long beams are profile units and various extensions thereof provided by this utility model. By using the profile units as the long beams of the storage rack's storage layer, they can be connected to the uprights using the locking holes at both ends of the long beams, achieving quick assembly and disassembly. Moreover, since the long beams of this utility model are profile units provided by this utility model, the storage rack possesses all the beneficial effects originally associated with the profile units.

[0019] As an extension of the above solution, the support frame includes at least two vertically arranged columns. Each column includes a first unit column and a second unit column that is connected and fixed to the first unit column. Both the first unit column and the second unit column are composed of profile units as provided in this utility model and various extension schemes thereof. The first unit column and the second unit column are mirror-symmetrically attached.

[0020] Specifically, when the first and second unit columns are mirror-symmetrically attached, they may form a profile with an I-shaped cross-section, or a square tube profile with a rectangular cross-section. If the front baffles of the two unit columns are attached back-to-back, they can be directly connected and locked using bolts and locking holes. If the front baffles of the two unit columns are relatively far apart, they can be welded at the gap between the first and second bearing plates to form the square tube profile.

[0021] This configuration allows construction workers to quickly assemble the profile units into columns on-site, improving installation efficiency. When the profile units are combined in pairs to form columns, the load on the columns is more evenly distributed. Therefore, the columns of this invention have better load-bearing capacity than traditional square tube columns, and production and transportation are simpler and faster.

[0022] As an extension of the above solution, the upright also includes a secondary beam, the two ends of which are connected to the side facade of the upright. The secondary beam is the profile unit provided by this utility model and its various extensions. By using the profile unit as the secondary beam, the warehouse rack is lighter, easier to install, and allows for on-site cutting of raw materials to install non-standard sized warehouse racks without the need for custom processing, thus improving production efficiency.

[0023] As an extension of the above solution, the connection structure between the sub-beam and the upright is as follows: the locking hole of the sub-beam is aligned with the corresponding second mounting hole group on the upright; after the bolt passes through the locking hole and the second mounting hole group, the sub-beam is locked and fixed to the upright. This structural design allows the sub-beam to be quickly installed onto the upright, and then accessories such as hooks, lights, and fans can be installed using the sub-beam without the need for securing these accessories with straps or wires. Compared to square tube sub-beams, this structural design gives the sub-beam better bending resistance, allowing it to hang more goods and increasing the shelf's capacity.

[0024] Compared with the prior art, the beneficial effects achieved by this utility model are as follows:

[0025] The profile unit of this utility model can be integrally bent and punched on the same sheet metal, making production simpler and more convenient, improving production efficiency, reducing welding processes, and reducing overall weight while ensuring load-bearing and bending resistance. Its inherent symmetry also improves the flexibility of product use and facilitates assembly with other accessories or profiles, such as in the field of warehouse racking, where it is used to form components such as rack beams and uprights. The warehouse racking of this utility model also incorporates all the beneficial effects of the aforementioned profile unit, and the installation of the warehouse racking of this utility model is simpler. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0027] Figure 1 This is a schematic diagram of the profile unit provided by this utility model;

[0028] Figure 2 This is a schematic diagram of the column in the embodiment;

[0029] Figure 3 This is a schematic diagram of the storage rack provided by this utility model;

[0030] Figure 4 This is a schematic diagram of a mezzanine storage rack in an embodiment;

[0031] Figure 5 This is a schematic diagram of a cantilever storage rack in an embodiment.

[0032] In the attached diagram: 1. First support plate; 111. First front edge; 112. First rear edge; 113. First bending structure; 2. Second support plate; 211. Second front edge; 212. Second rear edge; 213. Second bending structure; 3. Front baffle; 311. Upper edge; 312. Lower edge; 313. Groove; 314. Locking hole; 4. First mounting hole group; 411. First mounting hole; 412. 5. Second mounting hole, 6. Second mounting hole group, 7. Third mounting hole, 8. Fourth mounting hole, 9. Profile unit, 10. Load layer, 11. Long beam, 12. Frame, 13. Column, 14. Sub-beam, 15. First unit column, 16. Second unit column, 17. Bolt, 18. Cantilever, 19. Slot, 10. Third mounting hole group, 11. Limiting rod, 12. Base, 13. Second slot. Detailed Implementation

[0033] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0034] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] Reference Figures 1 to 4 The following are some embodiments of the profile unit of this utility model.

[0038] In some embodiments, a profile unit includes:

[0039] The first support plate 1 is arranged horizontally and extends to the left and right as a whole. The surface of the first support plate 1 has a first front edge 111 and a first rear edge 112.

[0040] The second support plate 2 is located below the first support plate 1 and is parallel to the first support plate 1. The second support plate 2 extends to the left and right as a whole. The surface of the second support plate 2 has a second front edge 211 and a second rear edge 212.

[0041] The front baffle 3 extends horizontally and vertically. The front baffle 3 has an upper edge 311 and a lower edge 312. The surface of the front baffle 3 is provided with a groove 313 and a locking hole 314. The upper edge 311 is connected to the first front edge 111, and the lower edge 312 is connected to the second front edge 211. The groove 313 extends horizontally and the recessed direction of the groove 313 faces rearward. The center line of the vertical height of the front baffle 3 is taken as the first central axis. The center of the locking hole 314 is located on the first central axis, and multiple locking holes 314 are evenly distributed along the first central axis.

[0042] A first mounting hole group 4 is provided on the front baffle 3. The first mounting hole group 4 includes a first mounting hole 411 and a second mounting hole 412. With the first central axis as the axis of symmetry, the first mounting hole 411 and the second mounting hole 412 are symmetrical to each other. The first mounting hole 411 is located above the first central axis.

[0043] The first rear edge 112 extends downward and then towards the front baffle 3 to form a first bending structure 113; the second rear edge 212 extends upward and then towards the front baffle 3 to form a second bending structure 213; the first bending structure 113 and the second bending structure 213 are aligned in the vertical direction.

[0044] The second mounting hole group 5 includes: a third mounting hole 511, which is disposed on the first support plate 1; and a fourth mounting hole 512, which is disposed on the second support plate 2, and the fourth mounting hole 512 is coaxial with the third mounting hole 511.

[0045] The first mounting hole group 4 and the second mounting hole group 5 can be evenly arranged along the length extension direction of the profile unit, which can make the profile unit have better assembly performance.

[0046] During production, the profile unit can be manufactured by punching holes in a steel plate and then rolling it. Compared to traditional square tube products, the profile unit of this solution is lighter in weight, does not require welding, and has sufficient strength. Furthermore, to further reduce the weight of the profile unit, the first mounting hole, the second mounting hole, and the locking hole can all be designed as oblong holes. Compared to round holes, oblong holes not only reduce the product's weight but also improve the ease of installation. In some application scenarios where the load on the profile unit is not high, the profile unit can be made of aluminum alloy.

[0047] In some embodiments, the profile unit 6 includes at least two grooves 313, which are symmetrically distributed with respect to the centerline of the front baffle 3 in the width direction. The length of each groove 313 is the same as the length of the profile unit 6. By providing two symmetrical grooves 313, the interchangeability of the profile unit 6 can be improved, and the structural strength of the profile unit 6 can be enhanced. When the profile unit 6 needs to withstand a larger load, the size of the profile unit 6 can be increased, and an appropriate number of symmetrical grooves 313 can be provided on the front plate surface of the profile unit 6, thereby increasing the bending resistance and load-bearing capacity of the profile unit 6.

[0048] In some embodiments, the profile unit provided by this utility model can be used to assemble a storage rack, which includes a storage layer 7. The storage layer 7 has at least two parallel long beams 8. The two ends of the long beams 8 are respectively connected to uprights 9 in an upright posture. The long beams 8 are the profile unit 6 provided by this utility model and its various extensions. The two ends of the long beams 8 are respectively connected to the uprights 9. The uprights 9 include at least two vertically arranged columns 911. A flat plate is laid on the two long beams 8, thereby enabling the storage layer 7 to carry goods.

[0049] The column 911 includes a first unit column 913 and a second unit column 914 connected and fixed to the first unit column 913. Both the first unit column 913 and the second unit column 914 are composed of the profile unit 6 provided by this utility model and its various extension schemes. The front baffle 3 of the first unit column 913 is fitted with the front baffle 3 of the second unit column 914, and the second unit column 914 is mirror-symmetrical with respect to the first unit column 913. The first unit column 913 and the second unit column 914 are connected together by multiple bolts and nuts connected to corresponding locking holes 314. Alternatively, in some embodiments, instead of having the front baffle 3 of the first unit column 913 and the front baffle 3 of the second unit column 914 fit together, they are kept apart from each other, and the edge of the first support plate 1 of the first unit column 913 is aligned with the edge of the first support plate 1 of the second unit column 914, and the edge of the second support plate 2 of the first unit column 913 is aligned with the edge of the second support plate 2 of the second unit column 914, and then welded, the connection of the two unit columns can also be achieved. Of course, the column formed in this way will be approximately rectangular. In some embodiments, if the profile unit thickness is sufficient, or if the first bending structure 113 and the second bending structure 213 have sufficient vertical elongation so that the first unit column 913 and the second unit column 914 can fit together securely, then a long bolt can be passed through the aligned locking holes 314 on both sides and then locked with a nut to achieve the production of a rectangular tube.

[0050] Both ends of the sub-beam 912 are connected to the side facade of the column 911. Specifically, the locking hole 314 of the sub-beam 912 is connected to the second mounting hole group 5 of the column 911. In some cases, the size of the sub-beam 912 is smaller than that of the column 911, and one end of the sub-beam 912 is embedded in one of the unit columns of the column 9. The second mounting hole group 5 on the sub-beam 912 is coaxial with the second mounting hole group 5 on one of the unit columns of the column 9. The crossbeam 912 is connected to the column 911 by bolts and nuts. The sub-beam 912 is the profile unit 6 and its various extensions provided by this utility model.

[0051] The connection between the long beam 8 and the upright frame 9 is as follows: the locking hole 314 at one end of the long beam 8 is connected to the second mounting hole group 5 of the upright frame 9 by bolts, or the connection is made by introducing an external connecting piece.

[0052] In some embodiments, the profile units of this utility model can participate in the formation of a column 9, which includes two profile units 6, the front baffles 3 of the two profile units 6 abutting each other and being detachably connected through locking holes 314; since the recessed directions of the grooves 313 on both sides are opposite to each other, the surfaces of the front baffles 3 on both sides can fit smoothly; since the locking holes 314 are oblong in shape, when used as a column 9, the height difference between the two profile units 6 can be freely adjusted, which allows the column to stand better on the ground compared to a circular locking hole; since the first bearing plate 1 and the second bearing plate 2 are provided with the same bending structure, and the end of the bending structure faces the front baffle, the weight borne by the column 9 can be transmitted more evenly.

[0053] In some embodiments, the profile unit of this utility model can participate in the formation of a sub-beam 912, which is composed of one of the profile units 6. Since the second mounting hole group 5 is provided on the bearing plate, the installer can connect the second mounting hole group 5 on the sub-beam 912 with the second mounting hole group 5 on the column 9 by bolts and nuts, thereby improving the ease of installation.

[0054] In some embodiments, the profile units of this utility model can be used to form a mezzanine storage rack, which includes two long beams 8, two secondary beams 912, four uprights 911, and a storage layer 7, all composed of profile units 6 of different sizes provided by this utility model. Specifically, the long beam 8 includes two profile units 6 provided by this utility model, which are connected together in a mirror-symmetrical manner. Connecting plates are connected to both ends of the long beam 8, and the connecting plates are provided with round holes.

[0055] Two profile units 6 are fitted together with their openings and welded together in a mirror-symmetrical manner to form a column 9. One end of the column 9 is welded with a fixing piece that contacts the floor.

[0056] The secondary beam 912 includes two profile units 6 provided by this utility model, which are connected together. Connecting plates with round holes are attached to both ends of the secondary beam 912. The connecting plates on the long beam 8 and the secondary beam 912 are respectively connected to the uprights 9 to form a rectangular frame. Several profile units 6 are laid on the plane formed by the two long beams 8 to form a storage layer 7. The profile units 6 of the storage layer 7 are bolted to the long beams 8 and locked in place. The mezzanine storage rack also includes a staircase welded from several profile units 6 provided by this utility model, with the higher end of the staircase welded to the mezzanine storage rack.

[0057] Reference Figure 5In some embodiments, the profile units provided by this utility model can also be used to form a cantilever storage rack. The cantilever storage rack includes columns 9, bases 15, cantilever arms 11, and sub-beams. One end of the column 9 is connected to the base 15, and a sub-beam is connected between adjacent columns 9. Several cantilever arms are connected to the column 9. The column 9 is formed by two profile units 6 provided by this utility model with their openings fitted together and welded together in a mirror-symmetrical manner. On the side where the cantilever arm 11 connects to the column 9, a slot 12 is provided. The opening width of the slot 12 is adapted to the thickness of the column 9. A third mounting hole group 13 is provided on the side wall of the slot 12. The third mounting hole group 13 is used to connect the first mounting hole 411 and / or the second mounting hole 412 on the column 9. During installation, the third mounting hole group 13 on the slot 12 is aligned with the first mounting hole 411 and / or the second mounting hole 412, and then tightened with bolts and nuts. This facilitates the installation and disassembly of the cantilever arm 11. In some cases, the end of the cantilever 11 is also provided with a limiting rod 14. The limiting rod 14 can be used to prevent goods from slipping off and can also be used to hang items. The limiting rod 14 and the cantilever 11 can be connected by welding or by a pin.

[0058] Furthermore, the two ends of the crossbeam are connected to connecting plates, and the connecting plates are provided with round holes. When in use, the crossbeam can be placed between two adjacent columns 9, the round holes on the connecting plates are aligned with the first mounting hole group 4 on the columns 9, and then locked with bolts and nuts.

[0059] Furthermore, the base 15 is provided with a second slot 16, the opening width of which is adapted to the thickness of the column 9; during installation, the column 9 and the second slot 16 are detachably connected. This design can improve the ease of installation of the cantilever rack and enable quick assembly and disassembly at any time.

[0060] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A profile unit, characterized in that: include: The first support plate (1) is arranged horizontally and extends to the left and right as a whole. The surface of the first support plate (1) has a first front edge (111) and a first rear edge (112). The second support plate (2) is located below the first support plate (1) and is parallel to the first support plate (1). The second support plate (2) extends to the left and right as a whole. The surface of the second support plate (2) has a second front edge (211) and a second rear edge (212). The front baffle (3) extends horizontally and vertically. The front baffle (3) has an upper edge (311) and a lower edge (312). The front baffle (3) has a groove (313) and a locking hole (314) on its surface. The upper edge (311) is connected to the first front edge (111), and the lower edge (312) is connected to the second front edge (211). The groove (313) extends horizontally and the recessed direction of the groove (313) faces backward. The center line of the front baffle (3) is taken as the first central axis, and the center of the locking hole (314) is located on the first central axis. Multiple locking holes (314) are evenly distributed along the first central axis.

2. The profile unit according to claim 1, characterized in that: It also includes a first mounting hole group (4) provided on the front baffle (3). The first mounting hole group (4) includes a first mounting hole (411) and a second mounting hole (412). With the first central axis as the axis of symmetry, the first mounting hole (411) and the second mounting hole (412) are symmetrical to each other. The first mounting hole (411) is located above the first central axis.

3. The profile unit according to claim 2, characterized in that: The first rear edge (112) extends downward and then towards the front baffle (3) to form a first bending structure (113); the second rear edge (212) extends upward and then towards the front baffle (3) to form a second bending structure (213); the first bending structure (113) and the second bending structure (213) are aligned in the vertical direction.

4. The profile unit according to claim 3, characterized in that: It also includes a second mounting hole group (5), which includes: The third mounting hole (511) is provided on the first support plate (1); The fourth mounting hole (512) is disposed on the second support plate (2), and the third mounting hole (511) is coaxial with the fourth mounting hole (512).

5. The profile unit according to claim 1, characterized in that: The grooves (313) are multiple and are arranged equally vertically with the first central axis as the axis of symmetry. The multiple grooves (313) are parallel to each other.

6. The profile unit according to claim 1, characterized in that: The locking hole (314) is a waist-shaped hole.

7. A warehouse rack, characterized in that: include: The load layer (7) has at least two parallel long beams (8), and each end of the long beams (8) is connected to a vertically upright frame (9). The long beams (8) are profile units (6) as described in any one of claims 1 to 6.

8. The storage rack according to claim 7, characterized in that: The support frame (9) includes at least two vertically arranged columns (911). Each column (911) includes a first unit column (913) and a second unit column (914) connected and fixed to the first unit column (913). Both the first unit column (913) and the second unit column (914) are composed of profile units (6) as described in any one of claims 1 to 6. The first unit column (913) and the second unit column (914) are mirror-symmetrically attached.

9. The storage rack according to claim 8, characterized in that: The support frame (9) also includes a sub-beam (912), the two ends of which are connected to the side facade of the column (911), and the sub-beam (912) is a profile unit (6) as described in any one of claims 1 to 6.

10. The storage rack according to claim 9, characterized in that: The connection structure between the sub-beam (912) and the column (911) is as follows: Align the locking hole (314) of the sub-beam (912) with the corresponding second mounting hole group (5) on the column (911), and after the bolt (10) passes through the locking hole (314) and the second mounting hole group (5), lock the sub-beam (912) and the column (911) together.

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