Concave square tube lifting storage shelf

Abstract

A concave square tube lifting storage shelf is provided. The concave square tube lifting storage shelf includes a plurality of post components, several assembly fixtures, and multiple storage layers. Each post components includes a hollow square tube and an elongated hole secured by fasteners, which are arranged at intervals along the hollow square tube. The upper and lower ends of the post components are each equipped with an assembly fixture. The multiple storage layers each include a movable shelf and four assembly components, which are positioned at the four corners of the movable shelf. These storage layers move along a lifting direction. The four assembly components each have multiple protruding columns. The upper and lower assembly fixtures are attached to the outer surface of the corresponding assembly fixtures at the upper and lower ends of the pillar assemblies.

Description

CROSS REFERENCE TO RELATED APPLICATION

[0001] This application claims the benefits of Taiwan application Serial No. 113147892, filed on Dec. 10, 2024, the disclosures of which are incorporated by references herein in its entirety.TECHNICAL FIELD

[0002] The present disclosure relates to a storage shelf, and in particular to a concave square tube lifting storage shelf which can lift a storage layer.BACKGROUND

[0003] Assembled shelves are shelves that can be assembled and used for storage, consisting of multiple independent components (such as storage layers and connectors). The design of assembled shelves usually emphasizes flexibility and scalability to meet the needs of home interiors, offices and other occasions.

[0004] Traditionally, there is a distinction between circular columns (round tubes) and square columns (square tubes). If circular columns are used, they cannot be horizontally and horizontally assembled for effective expansion. Therefore, the use of square tubes seems to be favorable. However, the structure of the traditional square tube and shelf is relatively complicated and time-consuming to assemble, which in turn leads to disadvantages of production and processing, packaging procedures, and high cost. Moreover, the storage layer cannot be moved upwardly and downwardly after being fixed to the square tube, which is also inconvenient to use.SUMMARY

[0005] The disclosed embodiment provides a concave square tube lifting storage shelf, the storage layer can be flexibly raised and lowered, the structure is simple and relatively stable, and the convenience of use is improved.

[0006] One embodiment of the present disclosure provides a concave square tube lifting storage shelf, which includes a plurality of post components, several assembly fixtures and several storage layers. Several post components respectively include a concave square tube and a plurality of elongated holes secured by fasteners. Each of the post components has an upper end and a lower end opposite to the upper end, each of the concave square tubes comprises a first plate, a second plate, a third plate, and a concave plate, each of the first plates and the corresponding second plate are parallel to each other, and two sides of each of the third plates are respectively connected to the corresponding first plate and the corresponding second plate, two sides of each of the concave plates are respectively connected to the corresponding first plate and the corresponding second plate, and the elongated holes secured by fasteners are respectively assembled on the concave plate at regular intervals, each of the elongated holes secured by fasteners comprises a fastening hole, and a hollow portion is provided within each of the concave square tubes. Each of the assembly fixtures includes a left-side plate, a right-side plate, and a bottom-side plate. Two sides of each of the bottom-side plates are vertically connected to the corresponding left-side plate and the right-side plate, one of the assembly fixtures is correspondingly assembled at positions of the upper end and the lower end of each of the post components, and each of the left-side plates is attached to a surface of the corresponding first plate, each of the right-side plates is attached to a surface of the corresponding second plate, and each of the bottom-side plates is attached to a surface of the corresponding third plate. Several storage layers respectively include a movable shelf and four assembly components. The four assembly components are respectively provided at four corners of the corresponding movable shelf, the size of the four assembly components is larger than the size of the concave square tubes, the storage layers can move along a lifting direction, the four assembly components comprise a plurality of protruding columns, the storage layers move along a first assembly direction, the protruding columns are fastened respectively into the corresponding fastening holes to assemble the storage layers between the post components, and the four assembly components in the storage layer corresponding to the upper end and the lower end of each of the post components are respectively attached to an outer surface of the corresponding assembly fixture.

[0007] In one embodiment, each of the fastening holes has an opposite opening end and a closing end, and along the first assembly direction, the size of the opening end to the size of the corresponding closing end in each of the fastening holes gradually decreases.

[0008] In one embodiment, the bottom-side plates has an opposite outer surface and an inner surface, the outer surface has an inclination angle relative to the inner surface, and the inclination angle of the outer surface along the first assembly direction becomes larger.

[0009] In one embodiment, the third plates is provided with a plurality of holes, each of the assembly fixtures comprises a plurality of assembly columns, the assembly columns are respectively disposed and protrude from the inner surface of the corresponding bottom-side plate, and the assembly columns are assembled on the holes.

[0010] In one embodiment, the assembly components includes a first assembly component, a second assembly component, a third assembly component, a fourth assembly component, two protruding columns, and an accommodating part, each of the first assembly components is assembled with the corresponding second assembly component, the third assembly component, and the fourth assembly component to form a square sleeve having the accommodating part, the protruding columns are provided within the corresponding fourth assembly component, a protruding position of the protruding columns is located within the accommodating part, each of the first assembly components is attached to the corresponding left-side plate, each of the second assembly components is attached to the corresponding right-side plate, and each of the third assembly components is attached to the corresponding bottom-side plate.

[0011] In one embodiment, the concave plates respectively include a concave portion, a first plate portion, and a second plate portion, two sides of each of the concave portions are connected to the corresponding first plate portion and the corresponding second plate portion, each of the first plate portions is connected to the corresponding first plate, each of the second plate portions is connected to the corresponding second plate, each of the elongated holes secured by fasteners is located in the concave portion of the corresponding concave plate, and two sides of each of the elongated holes secured by fasteners are located respectively between the corresponding first plate portion and the second plate portion.

[0012] In one embodiment, the concave square tubes include a plurality of fastener holes, each of the elongated holes secured by fasteners comprises a plurality of assembly fasteners, and the assembly fasteners are fastened to the fastener holes.

[0013] Based on the foregoing, the concave square tube lifting storage shelf of the present disclosure has a simple assembly structure and is relatively stable. Furthermore, the storage layer can move along the lifting direction on the post component, thereby improving the overall using convenience.

[0014] Furthermore, the square tube is changed into a concave square tube by the present disclosure to increase the structural strength.

[0015] In addition, the assembly fixtures are respectively provided at the upper end and the lower end of the post component. Accordingly, the protruding columns in the assembly component are fastened outside the fastening holes, and the first assembly component, the second assembly component, and the third assembly component in the assembly component are respectively attached to the left-side plate, the right-side plate, and the bottom-side plate in the assembly fixture, so that the assembly fixture will be located in the accommodating part of the assembly component to enhance the stability of the storage layer assembled on the post component.

[0016] Moreover, the size of the assembly component in the storage layer of the present disclosure is larger than the size of the concave square tube of the post component. Therefore, the storage layers can be moved up and down relative to the post component along the lifting direction. During the movement along the first assembly direction, the storage layer is assembled on the post component. In addition, the assembly fixtures can be provided on the upper end and the lower end of the post component to enhance the stability of the storage layer assembled on the post component.

[0017] A detailed description is given in the following embodiments with reference to the accompanying drawings, in order to make the disclosure more comprehensible.BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is a three-dimensional diagram of an embodiment of a concave square tube lifting storage shelf according to the present disclosure.

[0019] FIG. 2A is a three-dimensional diagram of the first type of post component according to the present disclosure.

[0020] FIG. 2B is a three-dimensional diagram of the second type of post component according to the present disclosure.

[0021] FIG. 2C is a three-dimensional diagram of the assembly process of the first type of post component and the second type of post component according to the present disclosure.

[0022] FIG. 2D is a three-dimensional diagram of the foot posts assembled in the first type of post component according to the present disclosure.

[0023] FIG. 3 is an exploded schematic diagram of the assembly fixture and the post component according to the present disclosure.

[0024] FIG. 4 is an exploded schematic diagram of the concave square tube and the assembly fixture according to the present disclosure.

[0025] FIG. 5A is a three-dimensional diagram of the assembly fixture according to the present disclosure.

[0026] FIG. 5B is a schematic side view of the assembly fixture according to the present disclosure.

[0027] FIG. 6 is a three-dimensional diagram of the elongated hole secured by fasteners according to the present disclosure.

[0028] FIG. 7 is a three-dimensional diagram of the storage layer according to the present disclosure.

[0029] FIG. 8 is a partial three-dimensional diagram of the assembly component in the storage layer according to the present disclosure.

[0030] FIG. 9 is a three-dimensional diagram of the process of installing the storage layer to the lower end of the post component and the assembly fixture according to the present disclosure.

[0031] FIG. 10 is a partial cross-section three-dimensional diagram of the process of installing the storage layer to the lower end of the post component and the assembly fixture according to the present disclosure.

[0032] FIG. 11 is a partial three-dimensional diagram of the storage layer installed to the lower end of the post component and the assembly fixtures according to the present disclosure.

[0033] FIG. 12 is a three-dimensional diagram of the process of installing the storage layer to the post component between the upper end and the lower end according to the present disclosure.

[0034] FIGS. 13 to 14 are three-dimensional diagrams of the assembly process of installing the storage layer to the post component between the upper end and the lower end of according to the present disclosure respectively.

[0035] FIG. 15 is a partial cross-section three-dimensional diagram of the protruding component of the storage layer fastened to the elongated hole secured by fasteners according to the present disclosure.

[0036] FIG. 16 is a partially enlarged and exploded three-dimensional diagram of the cover and assembly component of the present disclosure.DETAILED DESCRIPTION

[0037] The following embodiments are set forth in detail with accompanying drawings, but the embodiments provided are not intended to limit the scope of the disclosure. In addition, the drawings are for illustrative purposes only and are not drawn to original size. To facilitate understanding, the same components will be identified with the same symbols in the following description.

[0038] The terms “including”, “comprising”, “having”, etc. mentioned in the disclosure are open terms, which means “including but not limited to”.

[0039] In the description of various embodiments, when describing the components in terms of “first,”“second,”“third,”“fourth,” and the like, it is used only to distinguish these components from one another, and does not limit the order or importance of these components.

[0040] In the description of various embodiments, the so-called “component” may refer to a single portion or element that constitutes a larger system, device or structure. The components can be independent or cooperate with other components to complete specific functions. Components have different specific meanings in different fields, but they generally refer to a basic unit that makes up the whole.

[0041] In the description of various embodiments, the so-called “square tube” refers to a tube with a square cross-section. In addition, the so-called “concave square tube” refers to a structure in which at least one plate is a concave structure.

[0042] In the description of various embodiments, the so-called “hollow tube” refers to a circular or other-shaped tubular structure with a cavity inside and a certain thickness outside. Hollow tubes are different from solid tubes in that they are hollow on the inside, enabling them to reduce weight, save materials and provide greater space efficiency.

[0043] In the description of various embodiments, the so-called “recessed part” refers to a part of a certain area or surface that is lower in depth than other surrounding parts and presents a concave or recessed state.

[0044] In the description of various embodiments, the so-called “tapered hole structure” refers to a shape structure in which the holes in an object or structure gradually become smaller or contracted. Unlike ordinary holes with a constant diameter, the diameter of a tapered hole gradually decreases with depth or length. In other words, the aperture (diameter) of a tapered hole gradually decreases from one end to the other end. Typically, such holes are larger on one end and smaller on the other end.

[0045] In the description of various embodiments, the so-called “square sleeve” refers to a sleeve with a square exterior. The shape of this kind of sleeve enables it to closely fit with other components to provide stable connection and support.

[0046] In the description of various embodiments, the so-called “hollow structure” refers to a structure with internal cavities or voids. This hollow structure is usually surrounded by an external boundary and forms a hollow area inside.

[0047] In the description of various embodiments, the so-called “stacking direction” refers to the way or order in which objects are stacked and arranged, and usually refers to the relative position and arrangement direction of objects in space.

[0048] In the description of various embodiments, the so-called “assembly direction” refers to the direction in which components, parts or elements are connected or arranged in a certain way or sequence during the assembly process, and describes how to assemble each part at a specific angle, position or sequence.

[0049] In the description of various embodiments, the so-called “lifting direction” refers to the movement in the vertical direction, which corresponds to the movement in the horizontal direction, such as the moving direction of an object along the vertical axis, including the upward (rising) or downward (falling) motion of an object.

[0050] FIG. 1 is a three-dimensional diagram of an embodiment of a concave square tube lifting storage shelf according to the present disclosure. Referring to FIG. 1. The concave square tube lifting storage shelf 100 of the present disclosure includes a plurality of post components 110 and five storage layers 120. The four corners of each storage layer 120 are provided with the assembly components 122. There are four post components 110 in total as shown in FIG. 1. The two post components 110 at the front are separated by a distance, the two post components 110 at the rear are also separated by a distance, and the two post components 110 at the front and rear are also separated by a distance. The post components 110 are arranged in a rectangular shape or any shape. The five storage layers 120 are sequentially located between the post components 110 along the stacking direction L1. In addition, the storage layers 120 have a structural configuration to move along the lifting direction LA, and can be assembled between the post components 110 through the assembly components 122 to improve the convenience of use. The number of the storage layers 120 can be adjusted based on actual needs, so that various combinations of concave square tube lifting storage shelfs 100 can be provided.

[0051] FIG. 2A is a three-dimensional diagram of the first type of post component according to the present disclosure. FIG. 2B is a three-dimensional diagram of the second type of post component according to the present disclosure. FIG. 2C is a three-dimensional diagram of the assembly process of the first type of post component and the second type of post component according to the present disclosure. FIG. 2D is a three-dimensional diagram of the foot posts assembled in the first type of post component according to the present disclosure. Please refer to FIGS. 1 to 2D. The post component 110 of the present disclosure has a predetermined length, and the length of the post component 110 can be adjusted according to the actual required height of the concave square tube lifting storage shelf 100. Moreover, the post components 110 can also be assembled to achieve a predefined length.

[0052] The post component 110 can be divided into a first type of post component 110A as shown in FIG. 2A and a second type of post component 110B as shown in FIG. 2B. The bottom 112D of the first type of post component 110A is equipped with a foot post 170. As shown in FIG. 2D, the bottom 112D of the first type of post component 110A is provided with an assembly hole 112E. The foot post 170 includes a bottom component 172 and a fastening piece 174. The fastening piece 174 is connected to the bottom component 172, and the fastening piece 174 is fixed within the assembly hole 112E to assemble the foot post 170 on the bottom 112D of the first type of post component 110A. The stability of the overall concave square tube lifting storage shelf 100 as shown in FIG. 1 is increased through the foot post 170. In addition, the second type of post component 110B is provided with connecting piece 160, and the connecting piece 160 of the second type of post component 110B is assembled on the first type of post component 110A to increase the height of the overall post component 110 as shown in FIG. 1.

[0053] Specifically, the first type of the post component 110A and the second type of the post component 110B in the post component 110 respectively include a concave square tube 112 and a plurality of elongated holes secured by fasteners 116. These elongated holes secured by fasteners 116 are assembled at regular intervals on the concave plate KA. The concave square tube 112 is a concave square tube structure composed of a first plate 112A, a second plate 112B, a third plate 112C, and a concave plate KA. The square tube is changed into a concave square tube 112 by the present disclosure to increase the structural strength.

[0054] The first plate 112A and the second plate 112B are parallel to each other. Two sides of the third plate 112C are connected to the first plate 112A and the second plate 112B respectively to form a three-surface structure. The two sides of the concave plate KA are connected to the first plate 112A and the second plate 112B 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. The first plate 112A and the second plate 112B are opposite sides, the concave plate KA and the third plate 112C are opposite sides, and there is a hollow portion LD between the first plate 112A, the second plate 112B, the third plate 112C, and the concave plate KA. That is, the concave square tube 112 has a hollow portion LD within it as a hollow tube and is fitted with a concave plate KA to enhance the structural strength of the overall concave square tube 112 in order to withstand external pressures and loads.

[0055] As shown in FIG. 2C, the connecting piece 160 can be assembled into the hollow portion LD inside the concave square tube 112. The hollow portion LD is the space inside the concave square tube 112. The structural configuration of the connecting piece 160 can be adjusted according to the structural configuration of the concave square tube 112. For example, the connecting piece 160 includes a concave component 162 and a hollow square component 164. The concave component 162 is connected to the hollow square component 164, and the convex protruding components 162A are provided at two ends of the concave component 162. Accordingly, the concave component 162 has a concave shape and can match the shape of the concave plate KA, while the hollow square component 164 is square. On the other hand, the concave plate KA includes a concave portion KA1, a first plate portion KA2, and a second plate portion KA3. Two sides of the concave portion KA1 are connected to the first plate portion KA2 and the second plate portion KA3, and the first plate portion KA2 is connected to the first plate 112A, the second plate portion KA3 is connected to the second plate 112B, and the concave portion KA1 can be a recessed part of the concave plate KA. The hollow portion LD includes two hollow concave portions LD1 and LD2 and a hollow body portion LD3 according to the configuration of the concave plate KA. The hollow body portion LD3 connects with the two hollow concave portions LD1 and LD2. When the connecting piece 160 is inserted into the hollow portions LD, the concave component 162 corresponds to the back side surface of the concave plate KA. Accordingly, the protruding components 162A on two sides of the concave component 162 are located in the hollow concave portions LD1 and LD2, the hollow square component 164 is located in the hollow body portion LD3, and the connecting piece 160 is assembled inside the concave square tube 112, so that the second type of post component 110B and the first type of post component 110A are assembled together.

[0056] FIG. 3 is an exploded schematic diagram of the assembly fixture and the post component according to the present disclosure. FIG. 4 is an exploded schematic diagram of the concave square tube and the assembly fixture according to the present disclosure. FIG. 5A is a three-dimensional diagram of an assembly fixture according to the present disclosure. FIG. 5B is a schematic side view of an assembly fixture according to the present disclosure. Please refer to FIG. 1, and FIG. 3 to FIG. 5B. In addition to the post component 110 and the storage layer 120, the concave square tube lifting storage shelf 100 of the present disclosure further includes a plurality of assembly fixtures 140. A plurality of holes BA are respectively provided at the upper end T1 and the lower end T2 of each post component 110 for installing the assembly fixtures 140.

[0057] Taking FIG. 3 as an example, the post component 110 has an upper end T1, a lower end T2 opposite to the upper end T1, and an assembly end TA. The assembly end TA is the position for assembling the first type of the post component 110A and the second type of the post component 110B together. The first type of the post component 110A has a lower end T2, and the lower end T2 is a position away from the assembly end TA for the first type of the post component 110A. The second type of the post component 110B has an upper end T1, and the upper end T1 is a position away from the assembly end TA for the second type of the post component 110B.

[0058] Taking FIG. 2A as an example, the first type of the post component 110A has an assembly end TA1. The lower end T2 and the assembly end TA1 are two opposite ends. Taking FIG. 2B as an example, the second type of the post component 110B has an assembly end TA2. The connecting piece 160 is adjacent to the assembly end TA2. The upper end T1 and the assembly end TA2 are two opposite ends. In addition, as shown in FIG. 2C, the hollow portion LD located at the assembly end TA1 will be assembled with the connecting piece 160 on the assembly end TA2 at the position, which is the assembly end TA as shown in FIG. 3.

[0059] Please refer to FIGS. 3 and 4 again. The upper end T1 and the lower end T2 of the post component 110 are respectively assembled with an assembly fixture 140. The assembly fixture 140 will be assembled from the third plate 112C of the concave square tube 112. Moreover, the assembly fixture 140 has a -shaped configuration, and it includes a left-side plate 142A, a right-side plate 142B, a bottom-side plate 144, and two assembly columns 146. The two sides of the bottom-side plate 144 are vertically connected to the left-side plate 142A and the right-side plate 142B respectively. The left-side plate 142A and the right-side plate 142B are opposite sides. The two assembly columns 146 are disposed and protrude from the inner surface of the bottom-side plate 144.

[0060] The third plate 112C is provided with a plurality of holes BA. The number of the assembly columns 146 will match the number of holes BA located on the third plate 112C. In the embodiment, the number of the assembly columns 146 is two, and the corresponding holes BA are also set two. The number of holes BA and assembly columns 146 can be adjusted based on the actual situation.

[0061] Taking FIG. 4 as an example, the assembly fixture 140 will be assembled from the third plate 112C of the concave square tube 112. That is, if the concave plate KA is defined as the front-side position of the concave square tube 112, the assembly fixture 140 will be installed at the rear-side position of the concave square tube 112, or the position of the concave plate KA is the recessed position of the concave square tube 112, and the position of the concave plate KA will not be installed with the assembly fixture 140. The left-side plate 142A, the right-side plate 142B, and the bottom-side plate 144 in the assembly fixture 140 correspond to the first plate 112A, the second plate 112B, and the third plate 112C in the concave square tube 112 respectively. In addition, the position of the assembly column 146 corresponds to the hole BA on the third plate 112C.

[0062] When the assembly fixture 140 moves toward the third plate 112C, the assembly column 146 is assembled in the hole BA. Accordingly, the left-side plate 142A is attached to the surface of the first plate 112A, the right-side plate 142B is attached to the surface of the second plate 112B, and the bottom-side plate 144 is attached to the surface of the third plate 112C in order to assemble the assembly fixture 140 to the concave square tube 112. The assembled state can be referred to the disclosure in FIG. 10.

[0063] In one embodiment, as shown in FIGS. 5A and 5B, the bottom-side plate 144 in the assembly fixture 140 has an inclined structure. The bottom-side plate 144 has an opposite outer surface 144B, an inner surface 144B and a plurality of concave holes 144C. Taking the inner surface 144A as a reference, the outer surface 144B has an inclination angle LM relative to the inner surface 144A. The maximum angle of the inclination angle LM is, for example, 1.5 degrees. In addition, the inclination angle LM of the outer surface 144B becomes larger along a first assembly direction L2. The first assembly direction L2 is opposite to the stacking direction L1 as shown in FIG. 1, or the first assembly direction L2 can be the downward direction.

[0064] The two assembly columns 146 are respectively disposed and protrude from the inner surface 144A of the bottom-side plate 144. The assembly columns 146 are, for example, cylinders or columns of other shapes. The inner surface 144A may be provided with a plurality of concave holes 144C. The concave holes 144C are multiple holes recessed in the inner surface 144A, and the concave holes 144C do not pass through the outer surface 144B. In an unshown embodiment, the inner surface of the bottom-side plate in the assembly fixture can be a smooth surface without a concave hole, and the inner surface of the assembly column is disposed.

[0065] Please refer to FIGS. 4 and 6 again. The elongated holes secured by fasteners 116 are respectively arranged on the concave plate KA at regular intervals. The elongated hole secured by fasteners 116 is located in the concave portion KA1 of the concave plate KA. Two sides of the elongated hole secured by fasteners 116 are respectively located between the first plate portion KA2 and the second plate portion KA3. The elongated hole secured by fasteners 116 of the present disclosure is assembled on the concave plate KA in an assembled manner, and the elongated hole secured by fasteners 116 can be arranged at an appropriate position according to the actual storage layer location or requirements. In one embodiment, the elongated hole secured by fasteners 116 and the concave plate KA are assembled together in a fastened manner. For example, each elongated hole secured by fasteners 116 includes two assembly fasteners 116B, and the concave plate KA includes a plurality of fastener holes BC. Moreover, the positions of each two fastener holes BC correspond to the positions of the two assembly fasteners 116B. The assembly fasteners 116B are fastened to the fastener holes BC. The assembly fastener 116B is, for example, a bump or a similar structure equivalent to a bump. In other embodiments, the number of assembly fasteners and the fastener holes may be adjusted based on needs, and it can be one or more. In other unshown embodiments, the concave portion is provided with a fastener, for example. The elongated hole secured by fasteners is, for example, a hole provided with a fastener corresponding to the concave portion, and can also be assembled together.

[0066] In addition, taking FIG. 4 as an example, the third plate 112C of the concave square tube is equipped with an assembly fixture 140, and the concave plate KA on the opposite side of the third plate 112C is correspondingly provided with an elongated hole secured by fasteners 116. On the other hand, since the assembly fixtures 140 are provided at the upper end T1 and the lower end T2 of the post component 110 as shown in FIG. 3, although the concave plate KA is provided with a plurality of elongated holes secured by fasteners 116, but only the positions of the two elongated holes fastened by the fastener 116 (located at the upper end T1 and the lower end T2 of the post component 110) will correspond to the assembly fixture 140.

[0067] The elongated hole secured by fasteners 116 includes a fastener body 116A, a fastening hole GD, and two assembly fasteners 116B. The fastener body 116A is in the configuration of a rectangular body, and its two sides are vertically connected to the assembly fastener 116B respectively. That is, the two assembly fasteners 116B are respectively connected to two opposite sides of the fastener body 116A. In addition, the two assembly fasteners 116B have an angle with the fastener body 116A respectively, so that each assembly fastener 116B is the plate formed by bending one side of the fastener body 116A. The assembly fastener 116B is installed in the corresponding hole BA, so that when the elongated hole secured by fasteners 116 is assembled on the concave plate KA, there will be a set distance between the fastener body 116A and the concave plate KA. In other words, the fastener body 116A is not attached to the surface of the concave plate KA.

[0068] The fastening hole GD is along the length direction of the fastener body 116A, and the length direction is the direction in which the longest axis of the fastener body 116A points out. The fastening hole GD has an opening end GD1 and a closing end GD2 opposite to each other. The size of the opening end GD1 is larger than the size of the closing end GD2. In accordance with the first assembly direction L2 in FIG. 4 (the first assembly direction L2 is opposite to the stacking direction L1 shown in FIG. 1), along the first assembly direction L2, the size of the opening end GD1 to the size of the closing end GD2 in the fastening hole GD decreases gradually. In other words, the size of the fastening hole GD along the first assembly direction L2 is a tapered hole structure.

[0069] FIG. 7 is a three-dimensional diagram of the storage layer according to the present disclosure. FIG. 8 is a partial three-dimensional diagram of the assembly component in the storage layer according to the present disclosure. Please refer to FIGS. 1, 7 and 8. The storage layer 120 of the present disclosure includes a movable shelf 121 and four assembly components 122. The movable shelf 121 is, for example, a grid rack. The four assembly components 122 are respectively provided at four corners of the movable shelf 121. The assembly component 122 is, for example, a square sleeve, which is generally square and has a hollow structure.

[0070] The assembly component 122 includes a first assembly component 122A, a second assembly component 122B, a third assembly component 122C, a fourth assembly component 122D, two protruding columns 122E, and an accommodating part CA. The first assembly component 122A and the second assembly component 122B are parallel to each other, and the first assembly component 122A and the second assembly component 122B are separated by a distance. Two sides of the first assembly component 122A are respectively connected to the third assembly component 122C and the fourth assembly component 122D. Two sides of the second assembly component 122B are respectively connected to the third assembly component 122C and the fourth assembly component 122D. The third assembly component 122C and the fourth assembly component 122D are parallel to each other, and the third assembly component 122C and the fourth assembly component 122D are separated by a distance. Two sides of the third assembly component 122C are connected to the first assembly component 122A and the second assembly component 122B respectively. Two sides of the fourth assembly component 122D are connected to the first assembly component 122A and the second assembly component 122B respectively. Accordingly, the first assembly component 122A, the second assembly component 122B, the third assembly component 122C and the fourth assembly component 122D are assembled together to form the body of a square sleeve. The internal space after the assembly of the first assembly component 122A, the second assembly component 122B, the third assembly component 122C and the fourth assembly component 122D is the accommodating part CA. In other words, the accommodating part for the assembly component 122 serves as the space inside the square sleeve.

[0071] Two of the assembly components of the four assembly components (such as the first assembly component 122A, the second assembly component 122B, the third assembly component 122C and the fourth assembly component 122D) are connected to the movable shelf 121 respectively. One of the other two assembly components not connected to the movable shelf 121 is used as an assembly surface. Taking FIG. 8 as an example, the first assembly component 122A and the third assembly component 122C are respectively connected to the movable shelf 121, while the second assembly component 122B and the fourth assembly component 122D are not connected to the movable shelf 121. These two protruding columns 122E are disposed within the fourth assembly component 122D, so that the fourth assembly component 122D serves as the assembly surface. In addition, the protruding positions of the two protruding columns 122E are located within the accommodation part CA. In other words, two protruding columns 122E are provided on one surface within the assembly component 122.

[0072] FIG. 9 is a three-dimensional diagram of the process of installing the storage layer to the lower end of the post component and the assembly fixture according to the present disclosure. FIG. 10 is a partial cross-section three-dimensional diagram of the process of installing the storage layer to the lower end of the post component and the assembly fixture according to the present disclosure. FIG. 11 is a partial three-dimensional diagram of the storage layer installed to the lower end of the post component and the assembly fixtures according to the present disclosure. Since the upper end T1 and the lower end T2 of the post component 110 are respectively provided with the assembly fixtures 140. Please refer to FIGS. 9 to 11 to illustrate the assembly process of the storage layer 120 of the present disclosure installed on the lower end T2 of the post component 110, and the combination structure of the assembly component 122 with the elongated hole secured by fasteners 116 and the assembly fixture 140 respectively. The process of installing the storage layer 120 on the upper end T1 of the post component 110 is similar to the lower end T2, and thus the details will not be repeated.

[0073] The size of the assembly component 122 of the present disclosure is larger than the size of the concave square tube 112 of the post component 110. The storage layer 120 moves along the first assembly direction L2, and the first assembly direction L2 is opposite to the stacking direction L1 as shown in FIG. 1. Furthermore, the square sleeve structure of the assembly component 122 is fitted onto the outside of the concave square tube 112, and the protruding column 122E faces and moves toward the direction of the elongated hole secured by fasteners 116 (which is identical to the first assembly direction L2). The storage layer 120 continues to move along the first assembly direction L2 until the protruding column 122E is fastened to the elongated hole secured by fasteners 116, as shown in FIG. 11, to fix the storage layer 120 to the concave square tube 112 of the post component 110.

[0074] In addition, while the aforementioned storage layer 120 continues to move along the first assembly direction L2, since the size of the fastening hole GD along the first assembly direction L2 is a tapered hole structure, the opening end GD1 of the fastening hole GD gradually decreases to the size of the closing end GD2, so that along the first assembly direction L2, during the process of the protruding column 122E moving from the opening end GD1 to the closing end GD2, the combination degree of the protruding column 122E and the fastening hole GD will gradually tighten, making it easier for the protruding column 122E to enter the fastening hole GD. As the protruding column 122E continues to move along the first assembly direction L2, due to the size of the fastening hole GD become smaller gradually, the protruding column 122E can be fastened in the fastening hole GD, and the assembler can be informed of the completion of the assembly.

[0075] In one embodiment, while the aforementioned storage layer 120 continues to move along the first assembly direction L2, since the upper end T1 and the lower end T2 of the post component 110 are respectively provided with the assembly fixtures 140, the protruding column 122E in the assembly component 122 is fastened outside the fastening hole GD, and the assembly component 122 is attached to the outer surface of the corresponding assembly fixture 140. The first assembly component 122A, the second assembly component 122B, and the third assembly component 122C in the assembly component 122 are respectively attached to the left-side plate 142A, the right-side plate 142B, and the bottom-side plate 144 of the assembly fixture 140. Accordingly, the assembly fixture 140 will be located in the accommodating part CA in the assembly component 122, thereby improving the stability of the storage layer 120 installed on the post component 110.

[0076] In addition, as shown in FIGS. 5A and 5B, the bottom-side plate 144 in the assembly fixture 140 has an inclined structure, and the outer surface 144B has an inclination angle LM relative to the inner surface 144A. As such, during the movement of the assembly component 122 along the first assembly direction L2, since the inclination angle LM of the outer surface 144B of the bottom-side plate 144 along the first assembly direction L2 becomes larger, the combination degree of the assembly component 122 and the outer surface 144B of the bottom-side plate 144 will be gradually tightened. In this way, the accommodating part CA within the assembly component 122 can more easily accommodate the assembly fixture 140. Since the inclination angle LM of the outer surface 144B of the bottom-side plate 144 becomes larger, the outer surface 144B of the bottom-side plate 144 can be fastened within the accommodating part CA within the assembly component 122, and the assembler can be informed of the completion of the assembly.

[0077] FIG. 12 is a three-dimensional diagram of the process of installing the storage layer to the post component between the upper end and the lower end according to the present disclosure. FIGS. 13 to 14 are three-dimensional diagrams of the assembly process of installing the storage layer to the post component between the upper end and the lower end of according to the present disclosure respectively. FIG. 15 is a partial cross-section three-dimensional diagram of the protruding component of the storage layer fastened to the elongated hole secured by fasteners according to the present disclosure. Please refer to FIGS. 12 to 15. The difference between FIGS. 12 to 15 and the aforementioned FIGS. 9 to 11 is that there is no assembly fixation between the upper end T1 and the lower end T2 of the post component 110 of the present disclosure. However, the assembly process of the combination structure of the assembly component of installing the storage layer 120 on the assembly component 122 of the post component 122 and the elongated hole secured by fasteners 116 in the aforementioned FIGS. 9 to 11, is also similar to the assembly process of the combination structure of the assembly component of installing the storage layer 120 on the assembly component 122 of the post component 122 and the elongated hole secured by fasteners 116 in FIGS. 12 to 15. Therefore, FIGS. 12 to 15 illustrate the assembly process of installing the storage layer 120 to the post component 110 between the upper end T1 and the lower end T2 in the post component 110, and the combination structure of the assembly component 122 and the elongated hole secured by fasteners 116.

[0078] As shown in FIG. 12, after the storage layer 120 is assembled on the lower end T2 of the post component 110 through the assembly component 122, then the size of the assembly component 122 of the present disclosure is larger than the size of the concave square tube 112 of the post component 110 to move another storage layer 120 along the first assembly direction L2 on the concave square tube 112. In addition, the square sleeve structure of the assembly component 122 is fitted onto the outside of the concave square tube 112 so that an activity space will be created. The movable space is the space formed between the assembly component 122 and the concave square tube 112. The protruding column 122E faces and moves toward the direction of the elongated hole secured by fasteners 116 (which is identical to the first assembly direction L2). The storage layer 120 continues to move along the first assembly direction L2 until the protruding column 122E is fastened to the elongated hole secured by fasteners 116, as shown in FIG. 15, to fix the storage layer 120 to the concave square tube 112 of the post component 110.

[0079] In addition, in one embodiment, as shown in FIG. 13, the assembly component 122 is moved toward a second assembly direction L3. The second assembly direction L3 is to move horizontally, or the protruding column 122E faces and moves in the direction of the concave plate KA of the concave square tube 112. Accordingly, the protruding column 122E gradually approaches the concave plate KA, so that the protruding column 122E can better contact or correspond to the position of the elongated hole secured by fasteners 116. Afterwards, the assembly component 122 moves toward the first assembly direction L2 as shown in FIG. 14, until the protruding column 122E is fastened to the elongated hole secured by fasteners 116, as shown in FIG. 15, to secure the storage layer 120 to the concave square tube 112 in the post component 110.

[0080] In the same way, the size of the fastening hole GD along the first assembly direction L2 is a tapered hole structure. The combination degree of the protruding column 122E from the opening end GD1 to the closing end GD2 will gradually tighten, making it easier for the protruding column 122E to enter the fastening hole GD. As the protruding column 122E continues to move along the first assembly direction L2, due to the size of the fastening hole GD become smaller gradually, the protruding column 122E can be fastened in the fastening hole GD, and the assembler can be informed of the completion of the assembly.

[0081] As shown in FIG. 1, after sequentially assembling the three storage layers 120 above the lower end T2 of the post component 110, one storage layer 120 is then assembled on the upper end T1 of the post component 110. The assembly steps are the same as those illustrated in FIG. 9 to FIG. 11. As such, the size of the assembly component 122 in the storage layer 120 of the present disclosure is larger than the size of the concave square tube 112 of the post component 110. Therefore, the storage layers 120 can be moved up and down relative to the post component 110 along the lifting direction LA. During the movement along the first assembly direction L2, the storage layer 120 is assembled on the post component 110. In addition, the assembly fixtures can be provided on the upper end T1 and the lower end T2 of the post component 110 to enhance the stability of the storage layer 120 assembled on the post component 110.

[0082] FIG. 16 is a partially enlarged and exploded three-dimensional diagram of the cover and assembly component of the present disclosure. Please refer to FIGS. 1 and 16. In one embodiment, a cover 180 can be added on the post component 110 to cover the hollow tube above the post component 110 to improve the appearance. The cover 180 may include a combination structure 182. The structural configuration of the combination structure 182 matches the structural configuration of the hollow portion LD, so that the combination structure 182 is inserted into the hollow portion LD to install the cover 180 on the post component 110.

[0083] In summary, the concave square tube lifting storage shelf disclosed in the present invention has a simple assembly structure and is relatively stable, and the storage layer can move along the lifting direction on the post component, thereby improving the overall convenience of use.

[0084] Furthermore, the present disclosure changes the square tube into a concave square tube to increase the structural strength.

[0085] In addition, in the present disclosure, since the size of the fastening hole along the first assembly direction is a tapered hole structure, the size of the opening end to the size of the closing end in the fastening hole gradually decreases, so that along the first assembly direction, during the process of the protruding column moving from the opening end to the closing end, the combination degree of the protruding column and the fastening hole will gradually tighten, making it easier for the protruding column to enter the fastening hole. As the protruding column continues to move along the first assembly direction, due to the size of the fastening hole become smaller gradually, the protruding column can be fastened in the fastening hole, and the assembler can be informed of the completion of the assembly.

[0086] In addition, the assembly fixtures are respectively provided at the upper end and the lower end of the post component. Accordingly, the protruding columns in the assembly component are fastened outside the fastening holes, and the first assembly component, the second assembly component, and the third assembly component in the assembly component are respectively attached to the left-side plate, the right-side plate, and the bottom-side plate in the assembly fixture, so that the assembly fixture will be located in the accommodating part of the assembly component to enhance the stability of the storage layer assembled on the post component.

[0087] Furthermore, the bottom-side plate in the assembly fixture has an inclined structure, and the outer surface has an inclination angle relative to the inner surface. As such, during the movement of the assembly component along the first assembly direction, since the inclination angle of the outer surface of the bottom-side plate along the first assembly direction becomes larger, the combination degree of the assembly component and the outer surface of the bottom-side plate will be gradually tightened. In this way, the accommodating part within the assembly component can more easily accommodate the assembly fixture. Since the inclination angle of the outer surface of the bottom-side plate becomes larger, the outer surface of the bottom-side plate can be fastened within the accommodating part within the assembly component, and the assembler can be informed of the completion of the assembly.

[0088] In addition, the size of the assembly component in the storage layer of the present disclosure is larger than the size of the concave square tube of the post component. Therefore, the storage layers can be moved up and down relative to the post component along the lifting direction. During the movement along the first assembly direction, the storage layer is assembled on the post component. In addition, the assembly fixtures can be provided on the upper end and the lower end of the post component to enhance the stability of the storage layer assembled on the post component.

[0089] Although the disclosure has been disclosed in the form of embodiments, it is not intended to limit the present disclosure. Anyone with general knowledge in the field of technology may make some changes and modifications without departing from the spirit and scope of the present disclosure, and therefore the scope of protection of the disclosure shall be subject to the scope of the patent application attached hereto.

Claims

1. A concave square tube lifting storage shelf, comprisinga plurality of post components, respectively comprising a concave square tube and a plurality of elongated holes secured by fasteners, wherein each of the post components has an upper end and a lower end opposite to the upper end, each of the concave square tubes comprises a first plate, a second plate, a third plate, and a concave plate, each of the first plates and the corresponding second plate are parallel to each other, and two sides of each of the third plates are respectively connected to the corresponding first plate and the corresponding second plate, two sides of each of the concave plates are respectively connected to the corresponding first plate and the corresponding second plate, and the elongated holes secured by fasteners are respectively assembled on the concave plate at regular intervals, each of the elongated holes secured by fasteners comprises a fastening hole, and a hollow portion is provided within each of the concave square tubes;a plurality of assembly fixtures, wherein each of the assembly fixtures comprises a left-side plate, a right-side plate, and a bottom-side plate, wherein two sides of each of the bottom-side plates are vertically connected to the corresponding left-side plate and the right-side plate, one of the assembly fixtures is correspondingly assembled at positions of the upper end and the lower end of each of the post components, and each of the left-side plates is attached to a surface of the corresponding first plate, each of the right-side plates is attached to a surface of the corresponding second plate, and each of the bottom-side plates is attached to a surface of the corresponding third plate; anda plurality of storage layers, each comprising a movable shelf and four assembly components, wherein the four assembly components are respectively provided at four corners of the corresponding movable shelf, the size of the four assembly components is larger than the size of the concave square tubes, the storage layers can move along a lifting direction, the four assembly components comprise a plurality of protruding columns, the storage layers move along a first assembly direction, the protruding columns are fastened respectively into the corresponding fastening holes to assemble the storage layers between the post components, and the four assembly components in the storage layer corresponding to the upper end and the lower end of each of the post components are respectively attached to an outer surface of the corresponding assembly fixture.

2. The concave square tube lifting storage shelf according to claim 1, wherein each of the fastening holes has an opposite opening end and a closing end, and along the first assembly direction, the size of the opening end to the size of the corresponding closing end in each of the fastening holes gradually decreases.

3. The concave square tube lifting storage shelf according to claim 1, wherein each of the bottom-side plates has an opposite outer surface and an inner surface, the outer surface has an inclination angle relative to the inner surface, and the inclination angle of the outer surface along the first assembly direction becomes larger.

4. The concave square tube lifting storage shelf according to claim 3, wherein each of the third plates is provided with a plurality of holes, each of the assembly fixtures comprises a plurality of assembly columns, the assembly columns are respectively disposed and protrude from the inner surface of the corresponding bottom-side plate, and the assembly columns are assembled on the holes.

5. The concave square tube lifting storage shelf according to claim 1, wherein each of the assembly components comprises a first assembly component, a second assembly component, a third assembly component, a fourth assembly component, two protruding columns, and an accommodating part, each of the first assembly components is assembled with the corresponding second assembly component, the third assembly component, and the fourth assembly component to form a square sleeve having the accommodating part, the protruding columns are provided within the corresponding fourth assembly component, a protruding position of the protruding columns is located within the accommodating part, each of the first assembly components is attached to the corresponding left-side plate, each of the second assembly components is attached to the corresponding right-side plate, and each of the third assembly components is attached to the corresponding bottom-side plate.

6. The concave square tube lifting storage shelf according to claim 1, wherein each of the concave plates respectively comprises a concave portion, a first plate portion, and a second plate portion, two sides of each of the concave portions are connected to the corresponding first plate portion and the corresponding second plate portion, each of the first plate portions is connected to the corresponding first plate, each of the second plate portions is connected to the corresponding second plate, each of the elongated holes secured by fasteners is located in the concave portion of the corresponding concave plate, and two sides of each of the elongated holes secured by fasteners are located respectively between the corresponding first plate portion and the second plate portion.

7. The concave square tube lifting storage shelf according to claim 1, wherein each of the concave square tubes comprises a plurality of fastener holes, each of the elongated holes secured by fasteners comprises a plurality of assembly fasteners, and the assembly fasteners are fastened to the fastener holes.

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