Concave-shaped rectangular tube lifting storage rack

Abstract

This invention provides a concave rectangular tube lifting storage rack that is simple in structure, relatively stable, and offers improved ease of use. [Solution] The concave rectangular tube lifting storage rack 100 includes a plurality of column assemblies 110, two fixed storage layers 120, and a plurality of movable storage layers 130. These column assemblies include concave rectangular tubes 112, each concave rectangular tube including a concave plate. Each fixed storage layer includes a fixed shelf and a first assembly member 124, the first assembly member being provided on the fixed shelf and fitted onto the outside of the concave rectangular tube, and the fixed storage layer being assembled between these column assemblies by the first assembly member. The movable storage layer includes a movable shelf and a second assembly member 134, the second assembly member being provided on the movable shelf. The movable storage layer can move along the lifting direction LA, the second assembly member being assembled between these column assemblies, and these movable storage layers being assembled between two fixed storage layers.

Description

【Technical Field】 【0001】 The present invention relates to a storage rack, particularly a concave square tube lifting storage rack with a liftable storage layer. 【Background Art】 【0002】 A prefabricated storage rack is a storage rack composed of a plurality of independent members (such as storage layers, connecting members, etc.) that 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 cannot be performed, and effective expansion cannot be achieved. Therefore, it is considered advantageous to use square tubes. However, the conventional square tube and storage rack structures have relatively complex structures, require time for assembly, and furthermore have disadvantages such as more production processing and packaging processes and high costs. After fixing the storage layer to the square tube, it cannot be lifted and moved, which is inconvenient to use. 【Summary of the Invention】 【Problems to be Solved by the Invention】 【0004】 Embodiments of the present invention provide a concave square tube lifting 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 lifting storage rack including a plurality of column assemblies, two fixed storage layers, and a plurality of movable storage layers. These column assemblies include concave rectangular tubes, 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, and each concave rectangular tube having a hollow section inside. Each fixed storage layer includes a fixed shelf and four first assembly members, each provided at the four corners of its corresponding fixed shelf, each fitted onto the outside of its corresponding concave rectangular tube, and two fixed storage layers are assembled between the plurality of column assemblies by their respective four first assembly members. These movable storage layers are located between two fixed storage layers, each including a movable shelf and four second assembly members, the four second assembly members being located at the four corners of the corresponding movable shelf, the dimensions of the four second assembly members being larger than the dimensions of the concave rectangular tubes, and the multiple movable storage layers can move between the two fixed storage layers along the vertical direction, and the multiple movable storage layers are assembled between multiple support assemblies by the four second assembly members. 【0006】 In one embodiment, the support assembly includes a long fastener, which is provided on a corresponding concave rectangular tube, and the first assembly member includes at least one convex groove and at least one opening, the convex groove being connected to the corresponding opening, the long fastener engaging with the corresponding opening, and the convex groove being held at the upper end of the corresponding long fastener. 【0007】 In one embodiment, the opening has an inclination on both sides, and the angle from the first end to the second end of the opening gradually increases along the first assembly direction, with the first end adjacent to a corresponding convex groove. 【0008】 In one embodiment, the convex groove has a convex groove inclination, which is the angle of the convex groove with respect to the wall surface of the first assembly member. 【0009】 In one embodiment, elongated holes are provided on both sides of the concave rectangular tube, and the elongated fastener includes a body and two slopes, the two slopes being connected to opposite sides of the body, the body of the elongated fastener is located inside the hollow section, and the two slopes pass outside the corresponding elongated holes. 【0010】 In one embodiment, the support assembly includes a plurality of plates, each of which is provided with a corresponding concave plate. 【0011】 In one embodiment, the movable storage layer includes four hooks, the inner surface of the second assembly member having corresponding hooks, and these hooks engage with the position of one of the multiple plates to adjust the position of the multiple movable storage layers. 【0012】 In one embodiment, the concave plate includes a recess, a first plate portion, and a second plate portion, with the corresponding first plate portion and the corresponding second plate portion connected to both sides of the recess, the first plate portion connected to the corresponding second plate, and the second plate portion connected to the corresponding first plate. 【0013】 Another embodiment of the present invention provides a concave rectangular tube lifting storage rack comprising a plurality of column assemblies and a plurality of movable storage layers. Each of these columns comprises a concave rectangular tube and a plurality of plates, the plates being provided on corresponding concave plates, each concave rectangular tube comprising 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 plate and its corresponding second plate, each concave plate being connected to its corresponding first plate and its corresponding second plate, and each concave plate being connected to its corresponding first plate and its corresponding second plate, respectively. These movable storage layers each include a movable shelf and four second assembly members, each of which is located at the four corners of the corresponding movable shelf. The dimensions of these second assembly members are larger than the dimensions of the concave rectangular tube. These movable storage layers can move along the vertical direction. These movable storage layers include four hooks, the inner surface of each second assembly member is fitted to the corresponding hook, and each hook engages with the position of one of these plates, adjusting and fixing the position of these movable storage layers. 【0014】 A further embodiment of the present invention provides a concave rectangular tube lifting storage rack comprising a plurality of column assemblies and at least one fixed storage layer. Each of these column assemblies comprises a concave rectangular tube and a long fastener, each concave rectangular tube comprising a first plate, a second plate, a third plate, and a concave plate, each long fastener being provided on the corresponding concave rectangular tube, each first plate and its corresponding second plate being parallel to each other, each third plate being connected to its corresponding first plate and its corresponding second plate, respectively, and each concave plate being connected to its corresponding first plate and its corresponding second plate, respectively. Each fixed storage layer comprises a fixed shelf and four first assembly members, each of which is provided at the four corners of the corresponding fixed shelf, and each of which is fitted onto the outside of the corresponding concave rectangular tube, and each first assembly member comprises at least one convex groove and at least one opening, the convex groove communicating with the corresponding opening, the elongated fastener engaging with the corresponding opening, the convex groove being held at the upper end of the corresponding elongated fastener, and at least one fixed storage layer being assembled between these column assemblies. [Effects of the Invention] 【0015】 Based on the above, the concave rectangular tube lifting storage rack of the present invention has a simple structure, is relatively stable, and the movable storage layer can move along the lifting direction in the support column assembly, thereby improving overall usability. 【0016】 Furthermore, this invention improves structural strength by changing the square tube to a concave square tube. [Brief explanation of the drawing] 【0017】 [Figure 1] This is a perspective view of one embodiment of a concave rectangular tube lifting 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 2C]Partial perspective view of the assembly of the first strut assembly and the second strut assembly according to the present invention. [Figure 3] Perspective view of a fixed storage layer according to the present invention at an angle. [Figure 4] Perspective view of a fixed storage layer according to the present invention at another angle. [Figure 5] Explanatory diagram of the process of assembling the fixed storage layer of the present invention to the strut assembly. [Figure 6] Explanatory diagram of the fixed storage layer of the present invention assembled to the strut assembly. [Figure 7] Cross-sectional explanatory diagram of the fixed storage layer of FIG. 6 of the present invention assembled to the strut assembly. [Figure 8] Perspective view of a movable storage layer according to the present invention at an angle. [Figure 9] Explanatory diagram showing the state of the movable storage layer of the present invention during the moving process. [Figure 10] Explanatory diagram showing the state of the movable storage layer of the present invention during the moving process. [Figure 11] Explanatory diagram showing the state of the movable storage layer of the present invention during the moving process. [Figure 12] Explanatory diagram of the assembly process of the movable storage layer of the present invention. [Figure 13] Explanatory diagram of the assembly process of the movable storage layer of the present invention. [Figure 14] Explanatory diagram of the assembly process of the movable storage layer of the present invention. [Figure 15] Partial cross-sectional explanatory diagram of the hook of the movable storage layer of the present invention engaged with the plate. [Figure 16] Explanatory diagram of one assembled movable storage layer of the present invention. [Figure 17] Perspective view of another embodiment of the concave angle tube lifting storage rack according to the present invention. [Figure 18] Perspective view of yet another embodiment of the concave angle tube lifting storage rack according to the present invention. 【Mode for Carrying Out the Invention】 【0018】 To make the above-mentioned features and advantages of the present invention clearer and easier to understand, embodiments will be described in detail below, accompanied by the drawings. 【0019】 The embodiments described below will be explained in detail using the accompanying drawings, but the embodiments provided do not limit the scope of protection of the present invention. Furthermore, the drawings are for illustrative purposes only and are not drawn according to actual dimensions. For ease of understanding, the same components will be indicated by the same reference numerals in the following description. 【0020】 The terms "includes," "equipped with," and "possess" used in this invention are all open terms, meaning that they "include but are not limiting." 【0021】 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. 【0022】 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. 【0023】 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. 【0024】 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. 【0025】 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. 【0026】 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 orientation of objects in space. 【0027】 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. 【0028】 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) motion of the object. 【0029】 Figure 1 is a perspective view of one embodiment of the concave rectangular tube lifting storage rack according to the present invention. Referring to Figure 1, the concave rectangular tube lifting storage rack 100 of the present invention includes a plurality of support column assemblies 110, two fixed storage layers 120, and three movable storage layers 130, with first assembly members 124 at the four corners of each fixed storage layer 120 and second assembly members 134 at the four corners of each movable storage layer 130. In Figure 1, there are a total of four support column assemblies 110, with a certain distance between the two front support column assemblies 110, a certain distance between the two rear support column assemblies 110, and a certain distance between the front and rear two support column assemblies 110, and these support column assemblies 110 are arranged in a rectangular shape or any shape. One fixed storage layer 120, three movable storage layers 130, and another fixed storage layer 120 are positioned sequentially between the support column assemblies 110 along the stacking direction L1, and the fixed storage layers 120 are assembled between these support column assemblies 110 by a first assembly member 124, and the movable storage layers 130 are assembled between these support column assemblies 110 by a second assembly member 134, and these movable storage layers 130 are positioned between two upper and lower fixed storage layers 120, the number of movable storage layers 130 can be adjusted according to actual needs, and the above can be configured such that the upper and lower are fixed storage layers 120, and between these two fixed storage layers 120 there is a structural form of a movable storage layer 130 that can move along the lifting direction LA, improving convenience of use, and thus multiple different combinations of concave rectangular tube lifting storage racks 100 can be configured. In one embodiment, the overall stability of the concave rectangular tube lifting storage rack 100 can be improved by adding leg columns 170 below the support column assemblies 110. 【0030】 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 2C is a partial perspective view of the assembly of the first and second support assemblies according to the present invention. Referring to Figures 1 to 2C, the support assembly 110 of the present invention has a fixed length, and the length of the support assembly 110 can be adjusted according to the required height of the concave rectangular tube lifting storage rack 100, and a fixed length can be achieved by the assembly method. The support assembly 110 can be divided into a first support assembly 110A as shown in Figure 2A and a second support assembly 110B as shown in Figure 2B. A leg column 170 is provided at the bottom of the first support assembly 110A, and a connecting member 160 is installed on the second support assembly 110B. The connecting member 160 of the second support assembly 110B is assembled to the first support assembly 110A, thereby increasing the overall height of the support assembly 110 as shown in Figure 1. 【0031】 Specifically, the first support assembly 110A and the second support assembly 110B of the support assembly 110 each include a concave rectangular tube 112, a long fastener 114, and a plurality of plates 116. The long fastener 114 is provided on the concave rectangular tube 112, and the concave rectangular tube 112 is a rectangular tube structure having one concave shape, consisting of a first plate 112A, a second plate 112B, a third plate 112C, and a concave plate KA. The present invention improves structural strength by changing the rectangular tube to a concave rectangular tube 112. 【0032】 The first plate 112A and the second plate 112B are parallel to each other, and the first plate 112A and the second plate 112B are connected to both sides of the third plate 112C to form a three-sided structure, and the first plate 112A and the second plate 112B are connected to both sides of the concave plate KA respectively, so that the first plate 112A, the second plate 112B, the third plate 112C, and the concave plate KA are connected to form a three-dimensional concave structure, and the space between the first plate 112A, the second plate 112B, the third plate 112C, and the concave plate KA is a hollow section GD, that is, the inside of the concave rectangular tube 112 has a hollow section GD and is a hollow tube, and in combination with the concave plate KA the structural strength of the entire concave rectangular tube 112 is increased so that it can withstand the pressure and loads of the outside. These plates 116 are provided at equal intervals on the concave plate KA, and each plate 116 is, for example, a rectangular plate, and the plates 116 can be fixed to the concave plate KA by welding. 【0033】 As shown in Figure 2C, the connecting member 160 is assembled to the hollow portion GD inside the concave rectangular tube 112, and the structural form of the connecting member 160 can be adjusted based on the structural form of the concave rectangular tube 112. For example, as shown in Figure 2B, the connecting member 160 includes a concave member 162 and a hollow rectangular member 164, the concave member 162 is connected to the hollow rectangular member 164, and both ends of the concave member 162 are provided with protruding members 162A, the concave member 162 is concave to match the shape of the concave plate KA, and the hollow rectangular member 164 is rectangular. On the other hand, as shown in Figure 2C, 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 second plate 112B, and the second plate portion KA3 connected to the first plate 112A, and the recess KA1 may be the recessed portion of the concave plate KA. The hollow portion GD includes two hollow recesses GD1 and GD2 and a hollow body portion GD3 based on the shape of the concave plate KA, and the hollow body portion GD3 communicates with the two hollow recesses GD1 and GD2. When the connecting member 160 is inserted into the hollow section GD, the concave member 162 corresponds to the back side of the concave plate KA, positioning the protruding members 162A on both sides of the concave member 162 in the hollow recesses GD1 and GD2, positioning the hollow rectangular member 164 in the hollow main body section GD3, and assembling the connecting member 160 inside the concave rectangular tube 112. 【0034】 Figure 3 is a perspective view of the fixed storage layer of the present invention from one angle. Figure 4 is a perspective view of the fixed storage layer of the present invention from another angle. Referring to Figures 1, 3, and 4, the fixed storage layer 120 of the present invention includes one fixed shelf 122 and four first assembly members 124, the fixed shelf 122 being, for example, a mesh shelf. These four first assembly members 124 are each provided at the four corners of the fixed shelf 122. The first assembly members 124 are, for example, rectangular sleeves that are substantially rectangular and have a hollow structure. The first assembly member 124 includes two convex grooves 1242 and two openings 1244, where the convex grooves 1242 and openings 1244 are bumps and slots on the same wall surface of the first assembly member 124, and the convex grooves 1242 communicate with the openings 1244. As shown in Figure 4, the first assembly member 124 is provided with convex grooves 1242 and openings 1244 connected thereto on opposite sides. In this embodiment, the first assembly member 124 is provided with convex grooves 1242 and openings 1244 connected thereto on both sides, but in other embodiments, the first assembly member is provided with convex grooves and openings connected thereto on one side. 【0035】 Figure 5 is an explanatory diagram illustrating the process of assembling the fixed storage layer of the present invention onto the support column assembly. Figure 6 is an explanatory diagram of the fixed storage layer of the present invention assembled onto the support column assembly. Figure 7 is an explanatory diagram of the fixed storage layer of the present invention assembled onto the support column assembly of Figure 6, clearly illustrating the installation positions of the concave rectangular tube 112 and the long fastener 114, and the combined structure of the long fastener 114 and the first assembly member 124. Referring to Figures 3 to 7, as shown in Figure 5, the fixed storage layer 120 moves along the first assembly direction L2, which is on the opposite side of the stacking direction L1 shown in Figure 1, and the rectangular sleeve of the first assembly member 124 is fitted onto the outside of the concave rectangular tube 112, and the convex groove 1242 faces the opening 1244 to which it is connected and moves in the direction of the long fastener 114 (i.e., the same as the first assembly direction L2). As shown in Figure 6, the fixed storage layer 120 continues to move along the first assembly direction L2 until the long fastener 114 engages with the opening 1244, thereby fixing the fixed storage layer 120 to the concave rectangular tube 112 in the support assembly 110. 【0036】 In one embodiment, the convex groove 1242 of the present invention has a convex groove inclination A1, the convex groove 1242 is a block inclined outward on the wall surface S1 of the first assembly member 124, and the convex groove inclination A1 is the angle of the convex groove 1242 with respect to the wall surface S1 of the first assembly member 124. In this way, when the long fastener 114 is engaged with the opening 1244, the convex groove 1242 holds the long fastener 114 at its upper end, and the assembler can be notified that the assembly is complete. 【0037】 In one embodiment, the opening 1244 has an opening inclination A2 on both sides, and the angle of the opening inclination A2 gradually increases from the first end G1 to the second end G2 of the opening 1244, and in the assembly direction, the angle from the first end G1 to the second end G2 of the opening 1244 gradually increases along the first assembly direction L2, the first end G1 is adjacent to the convex groove 1242, that is, the second end G2 is the insertion end and the first end G1 is the locking end, so the opening 1244 is long-length-retaining As the component 114 moves in the direction of the component, the relatively large angle between the second ends G2 on both sides of the opening 1244 makes it easier for the long fastener 114 to enter the opening 1244. The first assembly member 124 continues to move along the first assembly direction L2, the inclination A2 of the opening 1244 gradually decreases, the angle between the first ends G1 on both sides of the opening 1244 decreases, the long fastener 114 is firmly fixed inside the opening 1244, and the assembly can be notified that the assembly is complete. 【0038】 On the other hand, as shown in Figures 5 and 7, elongated holes 1142 are provided on both sides of the concave rectangular tube 112, and the elongated holes 1142 are, for example, holes that extend along the longitudinal direction in the first plate 112A of the concave rectangular tube 112, and the longitudinal direction may be the first assembly direction L2 mentioned above. The elongated fastener 114 includes a body 114A and slopes 114B and 114C, the two slopes 114B and 114C are connected to opposite sides of the body 114A respectively, are designed in a staircase shape, and the slopes 114B and 114C have an inclination, the body 114A of the elongated fastener 114 is located inside the hollow part GD, and the slopes 114B and 114C each pass through the elongated holes 1142. 【0039】 Figure 8 is a perspective view of the movable storage layer of the present invention from one angle. Figures 9 to 11 are explanatory diagrams illustrating the state of the movable storage layer of the present invention during its movement process. Referring to Figures 1 and 8 to 10, the movable storage layer 130 of the present invention includes a movable shelf 132, four second assembly members 134, and four hooks 136, the movable shelf 132 being, for example, a mesh shelf. These four second assembly members 134 are provided at the four corners of the movable shelf 132. The second assembly members 134 are, for example, rectangular sleeves that are substantially rectangular and have a hollow structure. The dimensions of the second assembly members 134 of the present invention are larger than the dimensions of the concave rectangular tube 112 of the support assembly 110, and hooks 136 are installed on the inner surface of each second assembly member 134 (as shown in Figure 10), the second assembly member 134 is provided with a hole DA, and one side of the hook 136 is connected to the hole DA. 【0040】 Referring to Figure 9, after one fixed storage layer 120 is assembled to these support columns 110, the positions of these second assembly members 134 of the three movable storage layers 130 are sequentially aligned to the positions of these concave rectangular tubes 112, and the positions of the hooks 136 correspond to the positions of the concave plate KA, on which multiple plates 116 are installed. 【0041】 When these three movable storage layers 130 move sequentially along the first assembly direction L2, the dimensions of the second assembly member 134 are larger than the dimensions of the concave rectangular tube 112 of the support column assembly 110, thus creating a movable space GB, which is the space formed between the second assembly member 134 and the concave rectangular tube 112. At this time, the hooks 136 and plates 116 are separated by a distance and do not interfere with each other, so the three movable storage layers 130 can move up and down relative to the support column assembly 110 along the ascending / descending direction LA. As shown in Figure 11, when these three movable storage layers 130 are moved along the first assembly direction L2, the three movable storage layers 130 are first stacked on top of the fixed storage layer 120, at which point the fixed storage layer 120 does not move because it is fixed to the support column assembly 110. 【0042】 Furthermore, at this time, the second support assembly 110B is attached to the first support assembly 110A, and the assembly process is as described in Figures 2A to 2C. In addition, another fixed storage layer 120 is fixed to the second type of support assembly 110B, so that the two fixed storage layers 120 are positioned above and below the movable storage layer 130, and the three movable storage layers 130 can be moved up and down between the two fixed storage layers 120 along the upward / downward direction LA. 【0043】 Figures 12 to 14 are explanatory diagrams illustrating the assembly process of the movable storage layer of the present invention. Figure 15 is an explanatory diagram of a partial cross-section showing the hook of the movable storage layer of the present invention engaged with a plate. First, referring to Figure 12, the second assembly member 134 has opposing assembly plates 134A and a rear plate 134B, and the assembly plate 134A is provided with a hole DA and a hook 136 connected thereto. The dimensions of the second assembly member 134 are larger than the dimensions of the concave rectangular tube 112 of the support assembly 110, so it has a movable space GB, and at this time the concave rectangular tube 112 is supported by the rear plate 134B of the second assembly member 134, the assembly plate 134A of the second assembly member 134 is not in contact with the concave rectangular tube 112, and the hook 136 and the plate 116 are at a distance from each other. 【0044】 First, the second assembly member 134 is moved toward the second assembly direction L3, either horizontally along the second assembly direction L3 or toward the concave plate KA toward the hook 136, causing the concave rectangular tube 112 to gradually move away from the rear plate 134B of the second assembly member 134, and the assembly plate 134A of the second assembly member 134 to gradually move toward the concave rectangular tube 112. Next, as shown in Figure 13, the second assembly member 134 moves toward the second assembly direction L3, and the concave rectangular tube 112 is not supported by the rear plate 134B of the second assembly member 134 and has a movable space GB, and the concave rectangular tube 112 approaches or comes into contact with the assembly plate 134A of the second assembly member 134. Next, as shown in Figures 14 and 15, the second assembly member 134 is moved toward the first assembly direction L2, and the hook 136 engages with the upper side of the plate 116. Furthermore, as shown in Figures 2A and 2B, since the concave rectangular tube 112 has multiple plates 116 installed on it, the hook 136 can be engaged with the position of a specific plate 116 depending on the actual situation. 【0045】 Furthermore, since the hook 136 is fixed to the upper side of the plate 116, the second assembly member 134 can be moved in a direction opposite to the first assembly direction L2, that is, the fixing relationship between the hook 136 and the plate 116 can be released, and as shown in Figure 12, the second assembly member 134 can be moved in a direction opposite to the second assembly direction L3, and the second assembly member 134 can be moved up and down on the support column assembly 110. As can be seen from this, the hook 136 can engage with any of the plate 116 positions of these plates 116, and the positions of these movable storage layers 130 can be adjusted and fixed. 【0046】 Next, as shown in Figure 16, one movable storage layer 130 is assembled to a specific position on the support column assembly 110, and then the remaining two movable storage layers 130 are assembled to other specific positions on the support column assembly 110 as shown in Figure 1, completing the assembly process of the concave rectangular tube lifting storage rack 100. 【0047】 Figure 17 is a perspective view of another embodiment of the concave rectangular tube lifting storage rack according to the present invention. Referring to Figure 17, the difference between the concave rectangular tube lifting storage rack 200 of the present invention and the aforementioned concave rectangular tube lifting storage rack 100 is that the fixed storage layer 220 of the concave rectangular tube lifting storage rack 200 differs from the configuration of the aforementioned fixed storage layer 120 in Figure 1 and may be any form of storage layer structure. Thus, the concave rectangular tube lifting storage rack 200 is equipped with a movable storage layer 130, which is a storage layer that can move up and down and can be adapted to a fixed storage layer 220 of any form of storage layer structure. 【0048】 Figure 18 is a perspective view of another embodiment of the concave rectangular tube lifting storage rack according to the present invention. Referring to Figure 18, the difference between the concave rectangular tube lifting storage rack 300 of the present invention and the aforementioned concave rectangular tube lifting storage rack 100 is that the movable storage layer 330 of the concave rectangular tube lifting storage rack 300 differs from the configuration of the aforementioned movable storage layer 130 in Figure 1, and may be any form of movable storage layer structure. Thus, the concave rectangular tube lifting storage rack 300 has a structure in which the upper and lower parts are fixed storage layers 120, and can be adapted to a movable storage layer 330 of any form of movable storage layer structure. 【0049】 In summary, the concave rectangular tube lifting storage rack of the present invention has a simple structure, is relatively stable, and the movable storage layer moves along the vertical direction within the support column assembly, thereby improving overall usability. 【0050】 Furthermore, this disclosure improves structural strength by changing the rectangular shape to a concave rectangular tube. 【0051】 Furthermore, the opening of the first assembly member of the present invention has an opening inclination, and due to the relatively large angle between the second ends on both sides of the opening, the long fastener can easily enter the opening, the first assembly member continues to move along the first assembly direction, the opening inclination of the opening gradually decreases, the angle between the first ends on both sides of the opening decreases, the long fastener can be firmly fixed inside the opening, and the assembler can be notified that the assembly is complete. 【0052】 Furthermore, the convex groove of the first assembly member of the present invention has a convex groove inclination, and when the aforementioned long fastener is engaged with the opening, the convex groove is held at the upper end of the long fastener, thereby informing the assembler that the assembly is complete. 【0053】 Furthermore, the movable storage layers of the present invention move in the upward and downward direction, and their positions can be adjusted by engaging hooks with the positions of any of these plates. 【0054】 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] 【0055】 100 Concave Square Tube Lifting Storage Rack 200 Concave Square Tube Lifting Storage Rack 300mm Concave Rectangular Tube Lifting 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 114 Long fasteners 114A Main Unit 114B Slope 114C Slope 1142 Long-shaped hole 116 Plate 120 fixed storage layers 220 Fixed Storage Layers 122 Fixed shelf 124 First Assembly Member 1242 Convex groove 1244 Aperture 130 Movable Storage Layers 330 Movable Storage Layers 132 Movable shelf 134 Second Assembly Part 134A Assembly Plate 134B Rear plate 136 hooks 160 Connecting Member 162 Concave member 162A Protruding member 164 Hollow rectangular member 170 Pillars A1 Convex groove slope A2 Opening slope DA Hole G1 1st end G2 2nd end GB movable space GD Hollow part GD1 Hollow recess GD2 Hollow recess GD3 Hollow Body KA Concave Plate KA1 recess KA2 1st plate part KA3 2nd plate part L1 stacking direction L2 1st assembly direction L3 2nd assembly direction LA direction S1 Wall

Claims

[Claim 1] It includes a concave rectangular tube, each of which includes a first plate, a second plate, a third plate, and a concave plate, each of which the first plate and the corresponding second plate are parallel to each other, each of which third plate is connected to the corresponding first plate and the corresponding second plate, each of which concave plate is connected to the corresponding first plate and the corresponding second plate, and inside each of which concave rectangular tube is a plurality of support assemblies having a hollow section, Two fixed storage layers, each including a fixed shelf and four first assembly members, wherein the four first assembly members are provided at the four corners of the corresponding fixed shelf, and the four first assembly members are fitted onto the outside of the corresponding concave rectangular tubes, and the two fixed storage layers are assembled between the plurality of support columns by the four corresponding first assembly members. Located between two of the fixed storage layers, each comprising a movable shelf and four second assembly members, the four second assembly members each comprising a plurality of movable storage layers provided at the four corners of the corresponding movable shelf, The dimensions of the four second assembly members are greater than the dimensions of the concave rectangular tube, the plurality of movable storage layers can move between the two fixed storage layers along the vertical direction, and the plurality of movable storage layers are assembled between the plurality of support assemblies by the four second assembly members. Each of the plurality of support assemblies includes an elongated fastener, each of which is provided on the corresponding concave rectangular tube, and each of the first assembly members includes at least one convex groove and at least one opening, each of which convex groove is connected to the corresponding opening, each of which elongated fastener is engaged with the corresponding opening, and each of which convex groove is held at the upper end of the corresponding elongated fastener. A concave rectangular tube lifting storage rack, wherein each of the openings has an opening inclination on both sides, and the angle from the first end to the second end of each opening gradually increases along the first assembly direction, with each first end adjacent to the corresponding convex groove. [Claim 2] The concave rectangular tube lifting storage rack according to claim 1, wherein each of the convex grooves has a convex groove inclination, and the convex groove inclination is the angle of the convex groove with respect to the wall surface of the first assembly member. [Claim 3] A concave rectangular tube lifting storage rack according to claim 1, wherein each of the concave rectangular tubes has an elongated hole on each side, each elongated fastener includes a body and two slopes, the two slopes being connected to opposite sides of the body, the body of each elongated fastener being located inside the hollow portion, and the two slopes passing outside the corresponding elongated holes. [Claim 4] The concave rectangular tube lifting storage rack according to claim 1, wherein each of the plurality of support column sets includes a plurality of plates, and each of the plurality of plates is provided with a corresponding concave plate. [Claim 5] The concave rectangular tube lifting storage rack according to claim 4, wherein the plurality of movable storage layers include four hooks, and a corresponding hook is provided on the inner surface of each second assembly member, and each hook engages with the position of one of the plurality of plates to adjust the position of the plurality of movable storage layers. [Claim 6] The concave rectangular tube lifting storage rack according to claim 1, wherein each of the concave plates includes a recess, a first plate portion, and a second plate portion, and the corresponding first plate portion and the corresponding second plate portion are connected to both sides of each recess, each first plate portion is connected to the corresponding second plate, and each second plate portion is connected to the corresponding first plate. [Claim 7] A plurality of support assemblies comprising a concave rectangular tube and a long fastener, each of which the concave rectangular tube includes a first plate, a second plate, a third plate, and a concave plate, each of which the long fastener is provided on the corresponding concave rectangular tube, each of which the first plate and the corresponding second plate are parallel to each other, each of which the corresponding first plate and the corresponding second plate are connected to both sides of the third plate, and each of which the corresponding first plate and the corresponding second plate are connected to both sides of the concave plate, Each includes a fixed shelf and four first assembly members, the four first assembly members being provided at the four corners of the corresponding fixed shelf, the four first assembly members being fitted onto the outside of the corresponding concave rectangular tube, each first assembly member including at least one convex groove and at least one opening, each convex groove communicating with the corresponding opening, and each elongated fastener having at least one fixed storage layer engaging with the corresponding opening, Includes, Each of the convex grooves is held at the upper end of the corresponding elongated fastener, and at least one fixed storage layer is assembled between the multiple support assemblies. Each of the aforementioned convex grooves is held at the upper end of the corresponding elongated fastener, A concave rectangular tube lifting storage rack, wherein each of the openings has an opening inclination on both sides, and the angle from the first end to the second end of each opening gradually increases along the first assembly direction, with each first end adjacent to the corresponding convex groove.

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