Concave rectangular tube storage rack

Abstract

This invention provides a concave rectangular tube storage rack that is simple in structure, relatively stable, and offers improved ease of use. [Solution] The concave rectangular tube storage rack comprises multiple column assemblies, multiple storage layers, and multiple shelves. Each of these column assemblies includes a concave rectangular tube and multiple convex fasteners, each convex fastener being mounted to a concave plate at a distance from each other and comprising a fastener body, a convex block, and two sets of assembly notches, the convex block being connected to the fastener body and having assembly notches on both sides of the convex block. The storage layers comprise shelves and multiple fasteners, fixed between the column assemblies, the multiple fasteners being mounted on the shelves, and the fasteners engaging with their corresponding assembly notches, thereby fixing the multiple storage layers between the multiple column assemblies. The multiple shelves are provided on top of their corresponding storage layers.

Description

Technical Field

[0001] The present invention relates to a storage rack, particularly a concave square tube storage rack.

Background Art

[0002] A prefabricated storage rack is a storage rack that is composed of a plurality of independent members (such as storage layers, connecting members, etc.) and can be assembled and used for storage. The design of prefabricated storage racks usually emphasizes flexibility and expandability, meeting the requirements of houses, offices, etc.

[0003] Conventionally, there is a distinction between round columns (round tubes) and square columns (square tubes). When using round tube columns, horizontal assembly in the lateral direction is not possible, and effective expansion cannot be achieved. Therefore, it is considered advantageous to use square tubes. However, conventional square tube and storage rack structures have relatively complex structures, require time for assembly, and further have disadvantages such as more production processing and packaging processes and high costs.

Summary of the Invention

Problems to be Solved by the Invention

[0004] Embodiments of the present invention provide a concave square tube storage rack with a simple structure, relatively high stability, and improved usability.

Means for Solving the Problems

[0005] One embodiment of the present invention provides a concave rectangular tube storage rack including multiple support columns, multiple storage layers, and multiple shelves. Each of these support assemblies includes a concave rectangular tube and a plurality of convex fasteners, each concave rectangular tube including a first plate, a second plate, a third plate, and a concave plate, each first plate and its corresponding second plate being parallel to each other, each third plate being connected to its corresponding first and second plates respectively, each concave plate being connected to its corresponding first and second plates respectively, each convex fastener being assembled to the concave plate at a distance and including a fastener body, a convex block, and two sets of assembly notches, each convex block being connected to its corresponding fastener body and having assembly notches on both sides, each storage layer including shelves and a plurality of fasteners fixed between the support assemblies, the plurality of fasteners being installed on the shelves and engaging with their corresponding assembly notches, each securing the plurality of storage layers between the plurality of support assemblies. The plurality of shelves are each provided on the corresponding storage layer.

[0006] In one embodiment, each of the concave plates described above includes a recess, a first plate portion, and a second plate portion, with both sides of each recess connected to the corresponding first plate portion and the second plate portion, each first plate portion connected to the corresponding first plate, each second plate portion connected to the corresponding second plate, and both sides of each fastener body connected to the corresponding first plate portion and the corresponding second plate portion.

[0007] In one embodiment, each of the convex fasteners is spaced apart from the corresponding recess in the concave plate, and each convex fastener is inclined outward by an angle relative to the concave rectangular tube.

[0008] In one embodiment, each fastener body has a first block and a second block on both sides, with one assembly notch formed between the upper part of each first block and the corresponding convex block, and another assembly notch formed between the upper part of each second block and the corresponding convex block.

[0009] In one embodiment, the aforementioned plurality of fasteners have inclined surfaces.

[0010] In one embodiment, the aforementioned plurality of fasteners are two first fasteners and two second fasteners.

[0011] In one embodiment, each of the above-described storage layers includes two first assembly members and two second assembly members, each first assembly member having a Z-shaped hook structure, and the plurality of first fasteners being fasteners of the Z-shaped hook structure, each second assembly member having an L-shaped hook structure, and each second fastener being a fastener of the L-shaped hook structure. [Effects of the Invention]

[0012] Based on the above, the concave rectangular tube storage rack of the present invention has a simple structure, is relatively stable, and can improve overall usability.

[0013] Furthermore, this invention improves structural strength by changing the square tube to a concave square tube. [Brief explanation of the drawing]

[0014] [Figure 1] This is a perspective view of one embodiment of a concave rectangular tube storage rack according to the present invention. [Figure 2A] This is a perspective view of the first support assembly according to the present invention. [Figure 2B] This is a perspective view of the second support assembly according to the present invention. [Figure 3] This is a perspective view of the assembly process of the first and second support assembly according to the present invention. [Figure 4A] This is a perspective view of the concave rectangular tube and convex fastener according to the present invention. [Figure 4B] This is an explanatory diagram showing one-angle views of the concave rectangular tube and convex fastener according to the present invention. [Figure 4C] This is a side view of the concave rectangular tube and convex fastener according to the present invention. [Figure 5] This is a perspective view of the storage layer according to the present invention. [Figure 6]It is a plan view of a storage layer according to the present invention. [Figure 7A] It is an explanatory side view of a shelf coupled to a first assembly member according to the present invention. [Figure 7B] It is an explanatory perspective view of a shelf coupled to a first assembly member according to the present invention. [Figure 8A] It is an explanatory side view of a shelf coupled to a second assembly member according to the present invention. [Figure 8B] It is an explanatory perspective view of a shelf coupled to a second assembly member according to the present invention. [Figure 9] It is a perspective view of a process in which a storage layer of the present invention is assembled to a column set. [Figure 10A] It is a perspective view in which a first assembly member of the present invention is attached to a convex fastener. [Figure 10B] It is a perspective view in which a first assembly member of the present invention is engaged with a convex fastener. [Figure 11A] It is a perspective view in which a second assembly member of the present invention is attached to a convex fastener. [Figure 11B] It is a perspective view in which a second assembly member of the present invention is engaged with a convex fastener. [Figure 12] It is a perspective view of another embodiment of a concave angle pipe storage rack of the present invention. [Figure 13] It is a perspective view of an embodiment in which a convex fastener of a column set of the present invention is engaged.

Embodiments for Carrying out the Invention

[0015] In order to make the above features and advantages of the present invention clearer and easier to understand, embodiments will be given below and described in detail with reference to the drawings.

[0016] Hereinafter, embodiments will be given and described in detail in combination with the drawings. However, the provided embodiments do not limit the protection scope of the present invention. Also, the drawings are for illustrative purposes only and are not drawn according to actual dimensions. For ease of understanding, in the following description, the same members will be denoted by the same reference numerals and described.

[0017] The terms "includes," "equipped with," and "possess" used in this invention are all open terms, meaning that they "include but are not limiting."

[0018] In the description of each embodiment, when a component is described using terms such as "first," "second," "third," and "fourth," these terms are used solely to distinguish the components from one another and do not restrict the order or importance of these components.

[0019] In the description of each embodiment, the term "component" may refer to a single part or element that constitutes a larger system, device, or structure. These components may be independent or may work together with other components to jointly complete a specific function. While the specific meaning of "component" varies depending on the field, it generally refers to the basic unit that constitutes the whole.

[0020] In the description of each embodiment, the term "square tube" refers to a tube material with a square cross-section, and the term "concave square tube" refers to a structure in which at least one plate has a concave surface.

[0021] In the description of each embodiment, the term "hollow tube" refers to a circular or other shaped tubular structure that has a cavity inside and a certain thickness on the outside. Unlike solid tubes, hollow tubes have an empty interior, which allows for weight reduction, material savings, and improved space efficiency.

[0022] In the description of each embodiment, the term "recessed area" refers to a region or surface area whose depth is lower than that of the surrounding areas, resulting in a recessed state.

[0023] In the description of each embodiment, the so-called "stacking direction" refers to the method or order of stacking or arranging objects, and usually refers to the relative position and arrangement direction of objects in space.

[0024] In the description of each embodiment, the so-called "assembly direction" refers to the direction in which members, parts, or components are connected or arranged in a specific way or order during the assembly process, and refers to combining each part into one at a specific angle, position, or order.

[0025] In the description of each embodiment, the so-called "ascending / descending direction" refers to vertical movement, which corresponds to horizontal movement. For example, the direction of movement along the vertical axis of an object includes upward (ascending) or downward (descending) movement of the object.

[0026] Figure 1 is a perspective view of one embodiment of a concave rectangular tube storage rack according to the present invention. Referring to Figure 1, the concave rectangular tube storage rack 100 of the present invention includes a plurality of post components 110, five storage layers 120, and five shelves 130, the number of storage layers 120 and shelves 130 may be multiple. Figure 1 shows a total of four post components 110, with a distance between two post components 110 located at the front, a distance between two post components 110 located at the rear, and similarly, a distance between two front and rear post components 110, and these post components 110 are arranged in a rectangular or arbitrary shape. The shelf board 130 is provided on the corresponding storage layer 120, and these five storage layers 120 and the shelf board 130 connected to them are sequentially positioned between the support column assemblies 110 along the stacking direction L1. These storage layers 120 have a movable structure along the ascending direction LA, allowing the position of the storage layers 120 to be adjusted according to the dimensions of the items to be placed, improving convenience of use, and enabling the construction of various different combinations of concave rectangular tube storage racks 100.

[0027] Figure 2A is a perspective view of the first support assembly according to the present invention. Figure 2B is a perspective view of the second support assembly according to the present invention. Figure 3 is a perspective view of the assembly process of the first and second support assemblies according to the present invention. Referring to Figures 1 to 3, the support assembly 110 shown in Figure 1 has a predetermined length, and the length of the support assembly 110 can be adjusted according to the required height of the actual concave rectangular tube storage rack 100, and the support assembly 110 can also achieve a predetermined length by the assembly method.

[0028] Using Figure 1 as an example, the support column assembly 110 has an upper end T1, a lower end T2 opposite to the upper end T1, and an assembly end TA, where the assembly end TA is the position where the first support column assembly 110A and the second support column assembly 110B are combined into one. The first support column assembly 110A has a lower end T2, which is located away from the assembly end TA of the first support column assembly 110A, and the second support column assembly 110B has an upper end T1, which is located away from the assembly end TA of the second support column assembly 110B.

[0029] Taking Figure 2A as an example, the first support assembly 110A has an assembly end TA1, and the lower end T2 and the assembly end TA1 are opposite ends. Taking Figure 2B as an example, the second support assembly 110B has an assembly end TA2, the connecting member 160 is adjacent to the assembly end TA2, and the upper end T1 and the assembly end TA2 are opposite ends. Furthermore, as shown in Figure 2C, the position where the assembly end TA1 and the assembly end TA2 are combined into one is as shown in the assembly end TA in Figure 1.

[0030] The support column assembly 110 can be divided into a first support column assembly 110A as shown in Figure 2A and a second support column assembly 110B as shown in Figure 2B. The bottom 112D of the first support column assembly 110A has a leg column 170 attached to it, and the leg column 170 enhances the overall stability of the concave rectangular tube storage rack 100 as shown in Figure 1. The second support column assembly 110B has a connecting member 160 installed, and the connecting member 160 of the second support column assembly 110B is attached to the first support column assembly 110A, increasing the overall height of the support column assembly 110 as shown in Figure 1.

[0031] Specifically, the first support assembly 110A and the second support assembly 110B in the support assembly 110 each include a concave rectangular tube 112 and a plurality of convex-type fasteners components 116, and these convex-type fasteners 116 are assembled to the concave plate KA at a distance from each other, and the distance may be the same or different. As shown in Figures 2A and 2B as examples, these convex-type fasteners 116 form a member LT in pairs, and there is a distance between these members LT.

[0032] The concave rectangular tube 112 is a rectangular tube structure having a single concave shape, consisting of a first plate 112A, a second plate 112B, a third plate 112C, and a concave plate KA. The present invention increases the structural strength of the support assembly 110 by changing the rectangular tube to a concave rectangular tube 112.

[0033] The first plate 112A and the second plate 112B are parallel to each other, and both sides of the third plate 112C are connected to the first plate 112A and the second plate 112B respectively, forming one three-sided structure, and both sides of the concave plate KA are connected to the first plate 112A and the second plate 112B respectively, connecting the first plate 112A, the second plate 112B, the third plate 112C, and the concave plate KA into one three-dimensional concave structure, and the first plate Plate 112A and the second plate 112B are on opposite sides, and the concave plate KA and the third plate 112C are on opposite sides. The space between the first plate 112A, the second plate 112B, the third plate 112C, and the concave plate KA is a hollow section LD. In other words, the concave rectangular tube 112 has a hollow section LD inside, and when combined with the concave plate KA, it increases the structural strength of the entire concave rectangular tube 112, making it able to withstand external pressure and loads.

[0034] The connecting member 160 can be assembled to the hollow section LD inside the concave rectangular tube 112, where the hollow section LD is the space inside the concave rectangular tube 112, and the structural form of the connecting member 160 can be adjusted to match the structural form of the concave rectangular tube 112. For example, the connecting member 160 is a concave member 162, and the concave member 162 is provided with protruding members 162A at both ends, making the concave member 162 concave and conforming to the shape of the concave plate KA.

[0035] The concave plate KA includes a recess KA1, a first plate portion KA2, and a second plate portion KA3, with both sides of the recess KA1 connected to the first plate portion KA2 and the second plate portion KA3, the first plate portion KA2 connected to the first plate 112A, and the second plate portion KA3 connected to the second plate 112B, and the recess KA1 may be the recessed portion of the concave plate KA. The hollow portion LD includes two hollow recesses LD1 and LD2 and a hollow body portion LD3 according to the shape of the concave plate KA, and the hollow body portion LD3 is in communication with the two hollow recesses LD1 and LD2. When the connecting member 160 is inserted into the hollow section LD, the concave member 162 corresponds to the back surface of the concave plate KA, and the concave member 162 is located in the hollow main body section LD3, and the protruding members 162A on both sides of the concave member 162 are located in the hollow recesses LD1 and LD2, causing the second support assembly 110B and the first support assembly 110A to be assembled into one.

[0036] Figure 4A is a perspective view of the concave rectangular tube and convex fastener according to the present invention. Figure 4B is an explanatory diagram of the concave rectangular tube and convex fastener according to the present invention from one viewing angle. Figure 4C is an explanatory diagram of the concave rectangular tube and convex fastener according to the present invention from a side viewing angle. Referring to Figures 2A to 4C, these convex fasteners 116 are provided at different positions on the concave plate KA of the concave rectangular tube 112, and in one embodiment, these convex fasteners 116 are fixed to the concave plate KA by welding.

[0037] In this embodiment, these convex fasteners 116 come in pairs, with a fastener installation distance AE between each pair of convex fasteners 116, and each pair of convex fasteners 116 constitutes a single member LT, with a distance between these members LT. The convex fasteners 116 have a convex structure and may be made of iron. The convex fasteners 116 include a fastener body 1162, a convex block 1164, and two assembly notches EA1 and EA2, the convex block 1164 being connected to the fastener body 1162, and the convex block 1164 having assembly notches EA1 and EA2 on both sides.

[0038] The fastener body 1162 has a first block 1162A and a second block 1162B on both sides. The first block 1162A is connected to the first plate portion KA2 of the concave plate KA, and the second block 1162B is connected to the second plate portion KA3 of the concave plate KA. In other words, both sides of the fastener body 1162 are connected to the first plate portion KA2 and the second plate portion KA3, respectively.

[0039] The first block 1162A of the present invention has a length TB, and an assembly notch EA1 is formed between the upper part B11 of the first block 1162A and the convex block 1164. Similarly, the length of the second block 1162B may be the same as the length TB of the first block 1162A, and an assembly notch EA2 is formed between the upper part B12 of the second block 1162B and the convex block 1164. That is, the assembly notches EA1 and EA2 are notches between the convex block 1164 and the fastener body 1162.

[0040] As shown in Figure 4C, the convex block 1164 has a length TC. The convex fastener 116 and the recess KA1 are separated by a distance from each other, and the convex fastener 116 is inclined outward with respect to the concave rectangular tube 112 by an inclination angle AT. That is, the first distance D1 from the upper end of the convex block 1164 to the recess KA1 is greater than the second distance D2 from the bottom end of the fastener body 1162 to the recess KA1.

[0041] In one embodiment, the inclination angle AT of the convex fastener 116 provides an inclined opening along the first assembly direction L2, allowing the user to easily insert and assemble fasteners (such as the first fastener CA1 in Figure 7B or the second fastener CA2 in Figure 8B) from the upper end of the convex block 1164. The first assembly direction L2 is, for example, opposite to the stacking direction L1 in Figure 1, and parallel to the ascending / descending direction LA.

[0042] Figure 5 is a three-dimensional explanatory diagram of the storage layer according to the present invention, and Figure 6 is a plan view of the storage layer according to the present invention. Referring to Figures 5 and 6, the storage layer 120 of the present invention includes a shelf 122, two first assembly members 124, and two second assembly members 126, of which the shelf 122 is a long frame body and includes a first cross member 122A, a second cross member 122B, a third cross member 122C, a fourth cross member 122D, and a support member 122E, the extension direction of the first cross member 122A is parallel to the extension direction of the third cross member 122C, and there is a distance between the first cross member 122A and the third cross member 122C. The extension direction of the second cross member 122B is parallel to the extension direction of the fourth cross member 122D, and there is a distance between the second cross member 122B and the fourth cross member 122D. The ends of the first cross member 122A are connected to the second cross member 122B and the fourth cross member 122D, and the ends of the third cross member 122C are connected to the second cross member 122B and the fourth cross member 122D, forming a long frame as shown in Figure 5 or 6, and the support member 122E is provided between the second cross member 122B and the fourth cross member 122D, and the extension directions of the first cross member 122A, the third cross member 122C and the support member 122E are parallel.

[0043] In this embodiment, two first assembly members 124 and two second assembly members 126 are provided at the positions of the cross members corresponding to the shelf 122. For example, the second cross member 122B and the fourth cross member 122D are fitted with the first assembly member 124, and the second assembly members 126 are fitted at opposite ends of the first cross member 122A.

[0044] Specifically, there is a set distance DA between the first assembly member 124 and one end of the fourth cross member 122D, and similarly, the position in which the first assembly member 124 is installed on the second cross member 122B is the same as the position in which the first assembly member 124 is installed on the fourth cross member 122D. One side of the second assembly member 126 is provided on the first cross member 122A, and a part of the second assembly member 126 (such as the second fastener in Figure 8B) is located straddling the outside of the second cross member 122B and the fourth cross member 122D.

[0045] Figure 7A is an explanatory side view showing a shelf attached to the first assembly member according to the present invention. Figure 7B is an explanatory perspective view showing a shelf attached to the first assembly member according to the present invention. Referring to Figures 7A and 7B, the structure and relative relationship when the first assembly member 124 is attached to the fourth cross member 122D, with the first assembly member 124 being attached to the second cross member 122B as an example, is the same as when the first assembly member 124 is attached to the second cross member 122B.

[0046] The first assembly member 124 of the present invention includes a first fixing member 1242, two first bent portions 1244A and 1244B, and two first fasteners CA1, wherein the first fixing member 1242 is a plate, and the first fixing member 1242 is fixed to the surface of the second cross member 122B of the shelf 122, and the first assembly member 124 is provided on the second cross member 122B, and similarly the first assembly member 124 is fixed to the outer surface of the fourth cross member, and the first assembly member 124 is provided on the fourth cross member 122D.

[0047] The two first bent portions 1244A and 1244B are respectively connected between the two first fasteners CA1 and the first fixing member 1242, and the two first bent portions 1244A and 1244B are plates bent from one side of the first fixing member 1242, and the two first fasteners CA1 are respectively connected to the corresponding first bent portions 1244A and 1244B, and there is a distance between the surface of the first fasteners CA1 and the surface of the second cross member 122B, that is, the two first fasteners CA1 do not contact or connect to the surface of the second cross member 122B. The inner surface of the first fastener CA1 is an inclined surface SA1, that is, the fastener of the present invention has an inclined surface.

[0048] Furthermore, as shown in Figure 5, in one embodiment, the set distance DA may be the distance between the first fastener CA1 and one end of the second cross member 122B, and the two first fasteners CA1 of the first assembly member 124 are not flush with one end of the second cross member 122B but have the set distance DA.

[0049] In a further embodiment, there is a fastening distance DB1 between two first fasteners CA1, and the size of the fastening distance DB1 can be adjusted according to the actual situation. The first fixing member 1242 has a first protruding block 1242A, which is a protruding structure that extends parallel to one side of the first fixing member 1242.

[0050] Figure 8A is an explanatory side view showing a shelf attached to the second assembly member according to the present invention. Figure 8B is an explanatory perspective view showing a shelf attached to the second assembly member according to the present invention. Refer to Figures 8A and 8B. The second assembly member 126 of the present invention includes a second fixing member 1262, two second bent portions 1264A and 1264B, and two second fasteners CA2, the second fixing member 1262 being a plate, the second fixing member 1262 being fixed to the surface of the first cross member 122A, and the second assembly member 126 being provided on the first cross member 122A.

[0051] The two second bent portions 1264A and 1264B are connected between the two second fasteners CA2 and the second fixing member 1262, and the two second bent portions 1264A and 1264B are plates bent from one side of the second fixing member 1262, and one side of the second fixing member 1262 protrudes from one end of the first cross member 122A and is adjacent to the second cross member 122B (or the fourth cross member 122D in Figure 5), and the two second fasteners CA2 are connected to the corresponding second bent portions 1264A and 1264B, respectively, so that there is a distance between the surfaces of the two second fasteners CA2 and the second cross member 122B, and the two second fasteners CA2 are not in contact with or connected to the surface of the second cross member 122B. As can be seen from this, the two second fasteners CA2 of the second assembly member 126 are located outside the second cross member 122B (or the fourth cross member 122D in Figure 5) through the second bent portions 1264A and 1264B.

[0052] Furthermore, there is a fastening distance DB2 between the two second fasteners CA2, and the dimension of the fastening distance DB2 can be adjusted according to the actual situation. The second fixing member 1262 has a second protruding block 1262A, which is a projection structure that extends parallel to one side of the second fixing member 1262. The second protruding block 1262A is connected to the second bent portion 1264B.

[0053] From the above, the fasteners for the storage layer 120 of the present invention are provided on the shelf 122 and take the form of, for example, a first fastener CA1 and a second fastener CA2, and the number of fasteners and their installation configuration can be adjusted according to the actual situation. Taking Figure 7B as an example, the first assembly member 124 is a Z-shaped hook structure, and the first fastener CA1 may be a fastener with a Z-shaped hook structure. Taking Figure 8B as an example, the second assembly member 126 is an L-shaped hook structure, and the second fastener CA2 is a fastener with an L-shaped hook structure.

[0054] Figure 9 is a perspective view showing the process of assembling the storage layer of the present invention to the support column assembly. Figure 10A is a perspective view showing the first assembly member of the present invention being attached to the convex fastener. Figure 10B is a perspective view showing the first assembly member of the present invention engaging with the convex fastener. Figure 11A is a perspective view showing the second assembly member of the present invention being attached to the convex fastener. Figure 11B is a perspective view showing the second assembly member of the present invention engaging with the convex fastener.

[0055] First, referring to Figure 9, the process of assembling one storage layer 120 to the four support column assemblies 110 in this embodiment involves first moving one storage layer 120 toward the second assembly direction L3, which is either horizontal movement or movement toward the concave plate KA of the concave rectangular tube 112.

[0056] Next, as shown in Figure 10A, the two first fasteners CA1 in the first assembly member 124 move toward the concave plate KA of the concave rectangular tube 112, gradually moving the two first fasteners CA1 closer to the positions of the two convex fasteners 116 until the two first fasteners CA1 are positioned within the concave plate KA, and these two first fasteners CA1 are each positioned above the left-side assembly notch EA1 of the convex block 1164 of the corresponding convex fastener 116.

[0057] Next, the storage layer 120 continues to move along the first assembly direction L2, that is, the two first fasteners CA1 move toward the lower assembly notch EA1 until they engage with the assembly notch EA1 located to the left of the convex block 1164 of the convex fastener 116, thereby securing the first assembly member 124 of the storage layer 120 to the concave rectangular tube 112 of the support assembly 110, as shown in Figure 10B.

[0058] Furthermore, as shown in Figure 4C, the present invention can provide an opening that is inclined along the inclination angle AT of the convex fastener 116 in the first assembly direction L2, making it convenient to insert and engage the first fasteners CA1 from the convex block 1164 into the assembly notch EA1 when the two first fasteners CA1 move toward the lower assembly notch EA1.

[0059] Furthermore, in conjunction with the aforementioned inclination angle AT, the first fastener CA1 itself has an inclination (the slope SA1 shown in Figure 7A), and the inclined structure of the first fastener CA1 engages with the convex fastener 116 having an inclination angle AT, working together to fasten and increase stability.

[0060] Furthermore, the installation distance DA shown in Figure 7 allows a certain distance to be maintained from the first assembly member 124 in Figure 10A, and the portion of the second cross member 122B can be positioned close to or attached to the wall surface of the concave rectangular tube 112 (such as the first plate 112A).

[0061] Simultaneously, as shown in Figure 11A, the two second fasteners CA2 of the second assembly member 126 move toward the concave plate KA of the concave rectangular tube 112, and the two second fasteners CA2 gradually approach the positions of the two convex fasteners 116 until the two second fasteners CA2 are positioned within the concave plate KA, and these two second fasteners CA2 are respectively positioned above the left-side assembly notch EA1 of the convex block 1164 of the corresponding convex fastener 116.

[0062] Next, the storage layer 120 continues to move along the first assembly direction L2, that is, the two second fasteners CA2 move toward the lower assembly notch EA1 until they engage with the assembly notch EA1 located to the left of the convex block 1164 of the convex fastener 116, thereby securing the second assembly member 126 of the storage layer 120 to the concave rectangular tube 112 of the support assembly 110, as shown in Figure 11B.

[0063] Furthermore, as shown in Figure 4C, the present invention can provide an opening that is inclined along the inclination angle AT of the convex fastener 116 in the first assembly direction L2. Therefore, when the two second fasteners CA2 move toward the lower assembly notch EA1, it is convenient to insert and fix the second fasteners CA2 from the convex block 1164 into the assembly notch EA1.

[0064] Furthermore, in conjunction with the aforementioned inclination angle AT, the second fastener CA2 itself has an inclination, and the inclined structure of the second fastener CA2 engages with the convex fastener 116, which has an inclination angle AT, and works together to fasten it, thereby increasing stability.

[0065] Thus, the storage layer 120 is fixed between the four support column assemblies 110 by engaging the fasteners of the storage layer 120 (for example, the first fastener CA1 and the second fastener CA2) with the assembly notches EA1 of the convex fastener 116. Next, the shelf board 130 includes a shelf board body 132 and four notches 134, the notches 134 being notches at the four corners of the shelf board body 132. The shelf board 130 is placed on the storage layer 120, and the four notches 134 engage with the support column assemblies 110, fixing the shelf board 130 between these support column assemblies 110.

[0066] Next, these storage layers 120 and shelves 130 are sequentially installed between these support column assemblies 110 along the stacking direction L1 to form a concave rectangular tube storage rack 100 as shown in Figure 1.

[0067] Furthermore, in order to install these convex fasteners 116 at different positions within the concave plate KA of the concave rectangular tube 112, the storage layer 120 is moved to release the fastening relationship between the fasteners of the storage layer 120 (for example, the first fastener CA1 and the second fastener CA2) and the assembly notches EA1 of the convex fasteners 116. Depending on the actual situation, the fasteners of the storage layer 120 (the first fastener CA1 and the second fastener CA2) are engaged with the assembly notches EA1 of the convex fasteners 116 at different positions, and the position of the storage layer 120 is adjusted to move it up and down.

[0068] Figure 12 is a perspective view of another embodiment of the concave rectangular tube storage rack of the present invention. Figure 13 is a perspective view of one embodiment in which the convex fastener of the column assembly of the present invention is engaged. First, referring to Figures 1 and 12, the difference between the concave rectangular tube storage rack 200 in Figure 12 and the concave rectangular tube storage rack 100 in Figure 1 is that the concave rectangular tube storage rack 200 has a two-row structure along the lateral direction LB, and the lateral direction LB is perpendicular to the ascending direction LA.

[0069] As shown in Figure 13 or Figure 3, the convex fastener 116 has one assembly notch EA1 and EA2 on each side of the convex block 1164, and storage layers 120 can be assembled on both the left and right sides of the same concave rectangular tube 112, that is, adjacent storage layers 120 share one concave rectangular tube 112, which improves aesthetics and reduces costs.

[0070] In summary, the concave rectangular tube storage rack of the present invention has a simple structure, is relatively stable, and can improve overall usability.

[0071] Furthermore, this invention improves structural strength by changing the rectangular shape to a concave rectangular tube.

[0072] Furthermore, the inclination angle of the convex fastener 116 along the first assembly member provides an inclined opening, making it convenient to insert and engage the fastener into the assembly notch.

[0073] Furthermore, in accordance with the aforementioned inclination angle, the inclined structure of the fastener engages with the convex fastener having an inclined angle, and the two fasteners work together to fasten and increase stability.

[0074] Furthermore, one embodiment of the convex fastener has one assembly notch on each side, allowing storage layers to be assembled on both the left and right sides of the same concave rectangular tube. In other words, adjacent storage layers share one concave rectangular tube, providing aesthetic appeal and reducing costs.

[0075] Although the present invention has been disclosed by embodiments as described above, this does not limit the invention, and those skilled in the art can make some modifications and alterations without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention shall be based on the claims defined below. [Explanation of Symbols]

[0076] 100 Concave Rectangular Tube Storage Rack 200 Concave Rectangular Tube Storage Rack 110 support column assembly 110A 1st column set 110B 2nd pillar set 112 Concave square tube 112A Plate No. 1 112B Second Plate 112C Third Plate 112D bottom 116 Convex fastener 1162 Fastener body 1162A Block 1 1162B Block 2 1164 Convex Block 120 storage tiers 122 shelves 122A First Cross Member 122B Second Cross Member 122C Third Cross Member 122D Fourth Cross Member 122E Support Member 124 First Assembly Member 1242 First fixing member 1242A First protruding block 1244A First bend 1244B First bend 126 Second Assembly Member 1262 Second fixing member 1264A Second bend 1264B Second bend 130 shelves 132 Shelf board 134 Notch 160 Connecting Member 162 Concave member 162A Protruding member 170 Footnotes AT tilt angle AE Fastener installation distance B11 Upper B12 Upper part CA1 First fastener CA2 2nd fastener DA setting distance DB1 Fastener distance DB2 fastener distance EA1 Assembly Notch EA2 Assembly Notch L1 stacking direction L2 1st assembly direction L3 2nd assembly direction LA direction LB Lateral direction LD1 Hollow recess LD2 Hollow recess LT component LD hollow part KA Concave Plate KA1 recess KA2 1st plate part KA3 2nd plate part SA1 Slope T1 top end T2 bottom end TA Assembly End TA1 Assembly End TA2 Assembly Terminal TB length TC convex block length

Claims

1. The assembly comprises a concave rectangular tube and a plurality of convex fasteners, each concave rectangular tube comprising a first plate, a second plate, a third plate, and a concave plate, each of the first plate and the corresponding second plate being parallel to each other, each third plate having the corresponding first plate and the corresponding second plate connected to both sides, each concave plate having the corresponding first plate and the corresponding second plate connected to both sides, each convex fastener being assembled to the concave plate at a distance from each other and comprising a fastener body, a convex block, and two sets of assembly notches, each convex block being connected to the corresponding fastener body, and a plurality of support assemblies having the assembly notches on both sides of each convex block, A plurality of storage layers, each including shelves and a plurality of fasteners, fixed between the support columns, the plurality of fasteners being installed on the shelves, and the fasteners each engaging with the corresponding assembly notches, Multiple shelves are provided on the corresponding storage layer, A storage rack with concave rectangular tubes, including a recessed rectangular tube design.

2. The concave rectangular tube storage rack according to claim 1, wherein each concave plate includes a recess, a first plate portion, and a second plate portion, both sides of each recess are connected to the corresponding first plate portion and the second plate portion, each first plate portion is connected to the corresponding first plate, each second plate portion is connected to the corresponding second plate, and both sides of each fastener body are connected to the corresponding first plate portion and the corresponding second plate portion.

3. The concave rectangular tube storage rack according to claim 2, wherein each of the convex fasteners is spaced apart from the recess in the corresponding concave plate, and each of the convex fasteners is inclined outward with respect to the concave rectangular tube by an angle of inclination.

4. The concave rectangular tube storage rack according to claim 1, wherein each fastener body has a first block and a second block on both sides, one assembly notch is formed between the upper part of each first block and the corresponding convex block, and another assembly notch is formed between the upper part of each second block and the corresponding convex block.

5. The plurality of fasteners are concave rectangular tube storage racks according to claim 1, each having an inclined surface.

6. The concave rectangular tube storage rack according to claim 1, wherein the plurality of fasteners consist of two first fasteners and two second fasteners.

7. The concave rectangular tube storage rack according to claim 6, wherein each of the storage layers comprises two first assembly members and two second assembly members, each of the first assembly members having a Z-shaped hook structure, the plurality of first fasteners being fasteners for the Z-shaped hook structure, each of the second assembly members having an L-shaped hook structure, and each of the second fasteners being fasteners for the L-shaped hook structure.

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