TWI884891B - Concave square tube lifting storage shelf - Google Patents

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, which are respectively engaged with the engagement holes of the elongated hole secured by fasteners to assemble the storage layers between the post components. 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

Concave square tube lifting rack

The present disclosure relates to a storage rack, and more particularly to a concave square tube lifting storage rack capable of lifting and lowering storage layers.

Modular shelves are composed of multiple independent components (such as storage layers, connectors, etc.) that can be assembled and used for storage. The design of modular shelves usually emphasizes flexibility and expandability to meet the needs of home interiors, offices, and other occasions.

Traditionally, there is a distinction between round columns (round tubes) and square columns (square tubes). If round tube columns are used, they cannot be assembled horizontally and cannot be effectively expanded. Therefore, it seems to be advantageous to use square tubes. However, the traditional square tube and storage rack structure is relatively complex and time-consuming to assemble, which also leads to the disadvantages of many production and processing, packaging processes, and high costs. In addition, the storage layer cannot be raised or lowered after being fixed on the square tube, which is also inconvenient to use.

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

The present disclosure discloses a concave square tube lifting rack, comprising a plurality of column assemblies, a plurality of assembly fixings, and a plurality of storage layers. The plurality of column assemblies respectively comprise a concave square tube and a plurality of elongated hole fasteners, and each column assembly has an upper end and a lower end opposite to the upper end, each concave square tube comprises a first plate, a second plate, a third plate, and a concave plate, each first plate is parallel to the corresponding second plate, the two sides of each third plate are respectively connected to the corresponding first plate and the corresponding second plate, the two sides of each concave plate are respectively connected to the corresponding first plate and the corresponding second plate, these elongated hole fasteners are respectively assembled on the concave plate at intervals, and each elongated hole fastener comprises a buckling hole, and each concave square tube has a hollow portion therein. Each assembly fixing part includes a left side panel, a right side panel, and a bottom side panel, wherein the two sides of each bottom side panel are respectively vertically connected to the corresponding left side panel and right side panel, and the upper end and lower end of each column group are respectively assembled with a corresponding assembly fixing part, each left side panel is attached to the surface of the corresponding first panel, each right side panel is attached to the surface of the corresponding second panel, and each bottom side panel is attached to the surface of the corresponding third panel. The plurality of storage layers respectively include a movable shelf and four assembly components. The four assembly components are respectively arranged at four corners of the corresponding movable shelf. The sizes of the four assembly components are larger than the sizes of the concave square tubes. The storage layers can move along a lifting direction. The four assembly components include a plurality of protruding columns. The storage layers move along a first assembly direction. The protruding columns are respectively engaged in the corresponding engaging holes to assemble the storage layers between the column groups. The four assembly components in the corresponding storage layers located at the upper end and the lower end of each column group are respectively attached to the outer surface of the corresponding assembly fixing member.

In one embodiment, the buckling hole has an opening end and an end end opposite to each other, and along a first assembly direction, the size of the opening end of the buckling hole gradually decreases to the size of the corresponding end end.

In one embodiment, the bottom side plate has an outer surface and an inner surface opposite to each other, the outer surface has an inclination angle relative to the inner surface, and the inclination angle of the outer surface increases along the first assembly direction.

In one embodiment, the third plate is provided with a plurality of holes, and each assembly fixture includes a plurality of assembly columns, which are respectively provided and protrude from the inner surface of the corresponding bottom plate, and the assembly columns are assembled in the holes.

In one embodiment, the assembly components include a first assembly component, a second assembly component, a third assembly component, a fourth assembly component, two protruding columns, and a receiving portion. Each first assembly component is assembled with the corresponding second assembly component, the third assembly component, and the fourth assembly component to form a square sleeve having a receiving portion. The protruding columns are arranged in the corresponding fourth assembly component, and one of the protruding positions of the protruding columns is located in the receiving portion. Each first assembly component is attached to the corresponding left side plate, each second assembly component is attached to the corresponding right side plate, and each third assembly component is attached to the corresponding bottom side plate.

In one embodiment, the above-mentioned concave plate includes a recessed portion, a first plate portion, and a second plate portion, respectively. Both sides of each recessed portion are connected to the corresponding first plate portion and the corresponding second plate portion, and each first plate portion is connected to the corresponding first plate, and each second plate portion is connected to the corresponding second plate. Each elongated hole fastener is located in the recessed portion of the corresponding concave plate, and both sides of each elongated hole fastener are located between the corresponding first plate portion and the second plate portion.

In one embodiment, the concave square tube comprises a plurality of fastener holes, and each of the elongated holes is fastened with a plurality of assembly fasteners, which are fastened to the fastener holes.

Based on the above, in the concave square tube lifting rack disclosed in the present invention, the assembly structure is simple and relatively stable, and the storage layer can move along the lifting direction of the column assembly, thereby improving the overall convenience of use.

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

In addition, assembly fixings are respectively arranged at the upper and lower ends of the column assembly, so that the protruding column in the assembly assembly is tightly fixed outside the snap-fit hole, and the first assembly component, the second assembly component, and the third assembly component in the assembly assembly are respectively attached to the left plate, the right plate, and the bottom plate in the assembly fixing component, so that the assembly fixing component is located in the accommodating portion in the assembly assembly, so as to enhance the stability of the storage layer being arranged on the column assembly.

In addition, the size of the assembly components in the storage layers of the present disclosure is larger than the size of the concave square tube of the column group, so these storage layers can be moved up and down relative to the column group along the lifting direction, and the storage layers can be assembled to the column group during the movement along the first assembly direction, and assembly fixings can be set at the upper and lower ends of the column group to improve the stability of the storage layers assembled to the column group.

In order to make the present disclosure more clear and easy to understand, the following is a detailed description of the embodiments with the help of the attached drawings.

The following is a detailed description of the embodiments and accompanying drawings, but the embodiments provided are not intended to limit the scope of the present disclosure. In addition, the drawings are for illustration purposes only and are not drawn in their original size. For ease of understanding, the same components will be indicated by the same symbols in the following description.

The terms “including”, “comprising”, “having”, etc. mentioned in this disclosure are all open terms, which means “including but not limited to”.

In the description of each embodiment, when the terms “first,” “second,” “third,” “fourth,” etc. are used to describe an element, it is only used to distinguish these elements from each other, and does not limit the order or importance of these elements.

In the description of each embodiment, the so-called "component" may refer to a single part or element that constitutes a larger system, device or structure. These components may be independent or may cooperate with other components to perform specific functions. Components have different specific meanings in different fields, but generally refer to a basic unit that constitutes the whole.

In the description of each embodiment, 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.

In the description of each embodiment, the so-called "hollow tube" refers to a circular or other shaped tubular structure with a hole inside and a certain thickness outside. Unlike a solid tube, the inside of a hollow tube is empty, which can reduce weight, save materials, and provide higher space efficiency.

In the description of each embodiment, the so-called "depressed portion" refers to a region or a local surface whose depth is lower than other surrounding portions, and is concave or sunken.

In the description of each embodiment, the so-called "tapered hole structure" refers to a hole in an object or structure that has a shape structure that gradually becomes smaller or shrinks. Unlike ordinary holes with a constant diameter, the diameter of a tapered hole gradually decreases as the depth or length changes, that is, the diameter of the tapered hole gradually decreases from one end to the other. Usually, one end of this hole is larger and the other end is smaller.

In the description of each embodiment, the so-called "square sleeve" refers to a sleeve with a square exterior. The shape of this sleeve enables it to fit closely with other components to provide stable connection and support.

In the description of each embodiment, the so-called "hollow structure" refers to a structure with an internal cavity or void. Such a hollow structure is usually surrounded by an external boundary and forms a hollow area inside.

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

In the description of each embodiment, the so-called "assembly direction" refers to the direction in which components, parts or elements are connected or arranged in a certain manner or sequence during the assembly process, and describes how to assemble the parts together at a specific angle, position or sequence.

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

FIG. 1 is a three-dimensional schematic diagram of an embodiment of a concave square tube lifting rack according to the present disclosure. Referring to FIG. 1, the concave square tube lifting rack 100 of the present disclosure includes a plurality of post components 110 and five storage layers 120, wherein the four corners of each storage layer 120 have assembly components 122. FIG. 1 has a total of four post components 110, wherein the two post components 110 located at the front are spaced apart by a distance, the two post components 110 located at the rear are also spaced apart by a distance, and the two post components 110 located at the front and rear are also spaced apart by a distance, and these post components 110 are arranged in a rectangular shape or an arbitrary shape. The five storage layers 120 are sequentially located between the column sets 110 along the stacking direction L1, and the storage layers 120 have a structure that can move along the lifting direction LA, and can be assembled between the column sets 110 by means of assembly components 122, thereby improving the convenience of use. The number of storage layers 120 can be adjusted according to actual needs, so that a variety of different combinations of concave square tube lifting racks 100 can be formed.

FIG. 2A is a three-dimensional schematic diagram of the first column assembly according to the present disclosure. FIG. 2B is a three-dimensional schematic diagram of the second column assembly according to the present disclosure. FIG. 2C is a three-dimensional schematic diagram of the assembly process of the first column assembly and the second column assembly according to the present disclosure. FIG. 2D is a three-dimensional schematic diagram of the assembly of the foot column to the first column assembly according to the present disclosure. Please refer to FIG. 1 to FIG. 2D. The column assembly 110 of the present disclosure has a predetermined length, and the length of the column assembly 110 can be adjusted according to the actual required height of the concave square tube lifting rack 100. In addition, the column assembly 110 can also reach a predetermined length through assembly.

The column set 110 can be divided into a first column set 110A as shown in FIG. 2A and a second column set 110B as shown in FIG. 2B. The bottom 112D of the first column set 110A is provided with a foot column 170. As shown in FIG. 2D, the bottom 112D of the first column set 110A is provided with an assembly hole 112E. The foot column 170 includes a bottom member 172 and a locking member 174. The locking member 174 is connected to the bottom member 172. The locking member 174 is connected to the bottom member 172. 4 is fixed in the assembly hole 112E to assemble the foot column 170 to the bottom 112D of the first column assembly 110A, and the stability of the concave square tube lifting rack 100 as shown in FIG. 1 is increased through the foot column 170, and the second column assembly 110B is provided with a connecting piece 160, and the connecting piece 160 of the second column assembly 110B is assembled to the first column assembly 110A to increase the height of the column assembly 110 as shown in FIG. 1.

Specifically, the first column group 110A and the second column group 110B in the column group 110 respectively include a concave square tube 112 and a plurality of elongated holes secured by fasteners 116, wherein the elongated holes secured by fasteners 116 are respectively arranged at intervals on the concave plate KA, and 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 present disclosure changes the square tube into a concave square tube 112 to increase the structural strength.

The first plate 112A and the second plate 112B are parallel to each other. The two sides of the third plate 112C are connected to the first plate 112A and the second plate 112B respectively to form a three-sided 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. 12A 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 and is a hollow tube, and cooperates with the concave plate KA to enhance the structural strength of the entire concave square tube 112 to withstand external pressure and loads.

As shown in FIG. 2C , the connector 160 can be assembled to the hollow portion LD in the concave square tube 112. The hollow portion LD is the space inside the concave square tube 112. The structural form of the connector 160 can be adjusted according to the structural form of the concave square tube 112. For example, the connector 160 includes a concave component 162 and a hollow square component 164, wherein the concave component 162 is connected to the hollow square component 164, and the two ends of the concave component 162 are provided with protruding protrusions 162A, so that the concave component 162 is concave, which can match the shape of the concave plate KA, and 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, wherein the 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, and the second plate portion KA3 is connected to the second plate 112B. The concave portion KA1 can be a concave portion of the concave plate KA. The hollow portion LD includes two hollow concave portions LD1, LD2 and a hollow body portion LD3 according to the configuration of the concave plate KA, and the hollow body portion LD3 connects the two hollow concave portions LD1, LD2. When the connecting member 160 is inserted into the hollow portion LD, the concave component 162 corresponds to the back side of the concave plate KA, so that the protrusions 162A on both sides of the concave component 162 are located in the hollow recesses LD1 and LD2, and the hollow square component 164 is located in the hollow body LD3, and the connecting member 160 is assembled in the concave square tube 112, so that the second column assembly 110B is assembled with the first column assembly 110A.

FIG. 3 is a schematic diagram of an exploded view of an assembly fixture and a column group according to the present disclosure. FIG. 4 is a schematic diagram of an exploded view of a concave square tube and an assembly fixture according to the present disclosure. FIG. 5A is a schematic diagram of a three-dimensional assembly fixture according to the present disclosure. FIG. 5B is a schematic diagram of a side view of an assembly fixture according to the present disclosure. Please refer to FIG. 1 and FIG. 3 to FIG. 5B. The concave square tube lifting rack 100 disclosed in the present disclosure includes, in addition to the column group 110 and the storage layer 120, a plurality of assembly fixtures 140, wherein a plurality of holes BA are respectively provided at the upper end T1 and the lower end T2 of each column group 110 for installing the assembly fixture 140.

Taking FIG. 3 as an example, the column set 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 where the first column set 110A and the second column set 110B are assembled together. The first column set 110A has a lower end T2, which is a position of the first column set 110A far from the assembly end TA. The second column set 110B has an upper end T1, which is a position of the second column set 110B far from the assembly end TA.

Taking Figure 2A as an example, the first type of column set 110A has an assembly end TA1, and the lower end T2 and the assembly end TA1 are opposite ends; taking Figure 2B as an example, the second type of column set 110B has an assembly end TA2, the connector 160 is adjacent to the assembly end TA2, the upper end T1 and the assembly end TA2 are opposite ends, and as shown in Figure 2C, the hollow portion LD located at the assembly end TA1 will be assembled with the connector 160 on the assembly end TA2, which is the assembly end TA shown in Figure 3.

Please refer to Figures 3 and 4 again. The upper end T1 and the lower end T2 of the column assembly 110 are respectively assembled with an assembly fixture 140. The assembly fixture 140 is assembled from the third plate 112C of the concave square tube 112, and the assembly fixture 140 is a U-shaped configuration, which includes a left plate 142A, a right plate 142B, a bottom plate 144, and two assembly columns 146, wherein the two sides of the bottom plate 144 are respectively vertically connected to the left plate 142A and the right plate 142B, and the left plate 142A and the right plate 142B are opposite sides. The two assembly columns 146 are arranged and protrude from the inner surface of the bottom plate 144.

The third plate 112C is provided with a plurality of holes BA, and the number of assembly columns 146 will match the number of holes BA located on the third plate 112C. In this embodiment, the number of assembly columns 146 is two, and two corresponding holes BA are also provided, and the number of holes BA and assembly columns 146 can be adjusted according to actual circumstances.

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 concave position of the concave square tube 112, and the assembly fixture 140 will not be installed at the position of the concave plate KA. The left plate 142A, the right plate 142B, and the bottom 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, and the position of the assembly column 146 corresponds to the hole BA located on the third plate 112C.

When the assembly fixing member 140 moves toward the third plate 112C, the assembly column 146 is assembled in the hole BA, so that the left plate 142A is attached to the surface of the first plate 112A, the right plate 142B is attached to the surface of the second plate 112B, and the bottom plate 144 is attached to the surface of the third plate 112C, so as to assemble the assembly fixing member 140 to the concave square tube 112. The assembled state can be referred to as shown in Figure 10.

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

The two assembly columns 146 are respectively disposed and protrude from the inner surface 144A of the bottom 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 recessed holes 144C, which are a plurality of holes sunken in the inner surface 144A, and the recessed holes 144C do not pass through the outer surface 144B. In an embodiment not shown, the inner surface of the bottom plate in the assembly fixture may be a smooth surface without recessed holes, and the assembly columns are disposed on the inner surface.

Please refer to Figures 4 and 6 again. These long hole fasteners 116 are respectively assembled on the concave plate KA at intervals. The long hole fasteners 116 are located in the concave portion KA1 in the concave plate KA. The two sides of the long hole fasteners 116 are respectively located between the first plate portion KA2 and the second plate portion KA3. The long hole fasteners 116 disclosed in the present invention are assembled on the concave plate KA, and the long hole fasteners 116 can be set at appropriate positions according to the actual location or needs of the storage layer. In one embodiment, the elongated hole fastener 116 and the concave plate KA are assembled together in a snap-fit manner. For example, each elongated hole fastener 116 includes two assembly fasteners 116B, and the concave portion KA1 includes a plurality of fastener holes BC, and the positions of every two fastener holes BC correspond to the positions of the two assembly fasteners 116B. The assembly fastener 116B is snapped into the fastener hole BC, and 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 fastener holes can be adjusted according to demand and can be one or more. In other embodiments not shown, the concave portion is, for example, provided with a fastener, and the elongated hole fastener is, for example, provided with a hole of the fastener corresponding to the concave portion, and they can also be assembled together.

In addition, taking FIG. 4 as an example, the third plate 112C of the concave square tube is provided with an assembly fixture 140, and the concave plate KA on the opposite side of the third plate 112C is provided with a corresponding long hole fastener 116. On the other hand, since the assembly fixture 140 is provided at the upper end T1 and the lower end T2 of the column assembly 110 as shown in FIG. 3, although a plurality of long hole fasteners 116 are provided on the concave plate KA, only the positions of two long hole fasteners 116 (i.e., located at the upper end T1 and the lower end T2 of the column assembly 110) correspond to the assembly fixture 140.

The elongated hole fastener 116 includes a fastener body 116A, a fastening hole GD, and two assembly fasteners 116B. The fastener body 116A is in the shape of a rectangular body, and its two sides are respectively vertically connected to the assembly fasteners 116B, that is, the two assembly fasteners 116B are respectively connected to the opposite sides of the fastener body 116A, and the two assembly fasteners 116B have an angle with the fastener body 116A, so that each assembly fastener 116B is a 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 is assembled on the concave plate KA by the fastener 116, there is a setting distance between the fastener body 116A and the concave plate KA, that is, the fastener body 116A does not adhere to the surface of the concave plate KA.

The buckle hole GD is along the length direction of the fastener body 116A, and the length direction is the direction pointed by the longest axis of the fastener body 116A. The buckle hole GD has an open end GD1 and an end end GD2 opposite to each other, and the size of the open end GD1 is larger than the size of the end end GD2. In conjunction with the first assembly direction L2 of 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 buckle hole GD gradually decreases from the open end GD1 to the end end GD2, that is, the size of the buckle hole GD along the first assembly direction L2 is a gradual hole structure.

FIG. 7 is a three-dimensional schematic diagram of a storage layer according to the present disclosure. FIG. 8 is a partial three-dimensional schematic diagram of an assembly component in the storage layer according to the present disclosure. Referring to FIG. 1, FIG. 7 and FIG. 8, the storage layer 120 of the present disclosure includes a movable shelf 121 and four assembly components 122, wherein the movable shelf 121 is, for example, a grid. The four first assembly components 122 are respectively arranged at the four corners of the movable shelf 121. The assembly component 122 is, for example, a square sleeve, which is roughly square and has a hollow structure.

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 a receiving portion CA, wherein 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, the two sides of the first assembly component 122A are respectively connected to the third assembly component 122C and the fourth assembly component 122D, and the 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 122 C is separated from the fourth assembly part 122D by a distance, the two sides of the third assembly part 122C are respectively connected to the first assembly part 122A and the second assembly part 122B, and the two sides of the fourth assembly part 122D are respectively connected to the first assembly part 122A and the second assembly part 122B. In this way, the first assembly part 122A, the second assembly part 122B, the third assembly part 122C and the fourth assembly part 122D are assembled together to form a square sleeve body. The internal space of the first assembly part 122A, the second assembly part 122B, the third assembly part 122C and the fourth assembly part 122D after assembly is the accommodating part CA, that is, the accommodating part is the space inside the square sleeve of the assembly part 122.

Two of the four assemblies (such as the first assembly 122A, the second assembly 122B, the third assembly 122C and the fourth assembly 122D) in the assembly assembly 122 of the present disclosure are respectively connected to the movable shelf 121, and one of the other two assemblies not connected to the movable shelf 121 serves as an assembly surface. Taking FIG. 8 as an example, the first assembly 122A and the third assembly 122C are respectively connected to the movable shelf 121, while the second assembly 122B and the fourth assembly 122D are not connected to the movable shelf 121, and the two protruding columns 122E are arranged in the fourth assembly 122D, so that the fourth assembly 122D serves as an assembly surface, and the protruding positions of the two protruding columns 122E are located in the accommodating portion CA, that is, the two protruding columns 122E are arranged on one surface of the assembly 122.

FIG. 9 is a three-dimensional schematic diagram of the process of installing the storage layer to the lower end of the column group and assembling the fixing member according to the present disclosure. FIG. 10 is a three-dimensional schematic diagram of a partial cross-section of the process of installing the storage layer to the lower end of the column group and assembling the fixing member according to the present disclosure. FIG. 11 is a three-dimensional schematic diagram of a partial section of the process of installing the storage layer to the lower end of the column group and assembling the fixing member according to the present disclosure. Since the upper end T1 and the lower end T2 of the column group 110 are respectively provided with assembly fixing parts 140, please refer to Figures 9 to 11 to illustrate the assembly process of the storage layer 120 of the present disclosure installed in the lower end T2 of the column group 110, and the combination structure of the assembly component 122 with the long hole fastener 116 and the assembly fixing part 140. The process of installing the storage layer 120 at the upper end T1 in the column group 110 is similar to that of the lower end T2, so it will not be repeated.

The size of the assembly component 122 disclosed in the present invention is larger than the size of the concave square tube 112 of the column assembly 110. The storage layer 120 moves along the first assembly direction L2, which is opposite to the stacking direction L1 as shown in FIG. 1, and the square sleeve structure of the assembly component 122 is sleeved on the outer side of the concave square tube 112, and the protruding column 122E faces and moves in the direction of the long hole fastener 116 (i.e., the same as the first assembly direction L2). The storage layer 120 continues to move along the first assembly direction L2 until the protruding column 122E is engaged with the long hole fastener 116, as shown in FIG. 11, so as to fix the storage layer 120 to the concave square tube 112 in the column assembly 110.

In addition, while the storage layer 120 continues to move along the first assembly direction L2, since the size of the buckle hole GD along the first assembly direction L2 is a gradually shrinking hole structure, the size of the buckle hole GD from the opening end GD1 to the end end GD2 gradually decreases, so that along the first assembly direction L2, the protruding column 122E increases from the opening end GD1 to the end end GD2. During the movement, the tightness of the combination between the protruding column 122E and the buckling hole GD will gradually tighten, making it easier for the protruding column 122E to enter the buckling hole GD. As the protruding column 122E continues to move along the first assembly direction L2, the size of the buckling hole GD gradually decreases, so the protruding column 122E can be tightened in the buckling hole GD, and the assembler can know that the assembly is completed.

In one embodiment, while the storage layer 120 continues to move along the first assembly direction L2, since the upper end T1 and the lower end T2 of the column assembly 110 are respectively provided with assembly fixing parts 140, the protruding column 122E in the assembly component 122 is tightly fixed outside the buckling hole GD, and the assembly component 122 is attached to the outer surface of the corresponding assembly fixing part 140. The first assembly 122A, the second assembly 122B, and the third assembly 122C in the assembly assembly 122 are respectively attached to the left panel 142A, the right panel 142B, and the bottom panel 144 in the assembly fixture 140, so that the assembly fixture 140 is located in the accommodating portion CA in the assembly assembly 122 to enhance the stability of the storage layer 120 set on the column assembly 110.

In addition, as shown in Figures 5A and 5B, the bottom panel 144 in the assembly fixture 140 is an inclined structure, and the outer surface 144B has an inclined angle LM relative to the inner surface 144A. As a result, when the assembly component 122 moves along the first assembly direction L2, the inclined angle LM of the outer surface 144B of the bottom panel 144 along the first assembly direction L2 becomes larger and larger, so that the tightness of the assembly component 122 and the outer surface 144B of the bottom panel 144 will gradually tighten. In this way, the accommodation portion CA in the assembly component 122 can more easily accommodate the assembly fixture 140. As the inclination angle LM of the outer surface 144B of the bottom panel 144 becomes larger and larger, the outer surface 144B of the bottom panel 144 can be fastened to the accommodation portion CA in the assembly component 122, and the assembler can be informed that the assembly is completed.

FIG. 12 is a three-dimensional schematic diagram of a process of installing the storage layer to the column assembly between the upper end and the lower end according to the present disclosure. FIG. 13 and FIG. 14 are three-dimensional schematic diagrams of the assembly process of installing the storage layer to the column assembly between the upper end and the lower end according to the present disclosure. FIG. 15 is a three-dimensional schematic diagram of a partial cross-section of the protruding part of the storage layer of the present disclosure being engaged with the fastened part of the elongated hole. Please refer to FIGS. 12 to 15. The difference between FIGS. 12 to 15 and the aforementioned FIGS. 9 to 11 is that: the assembly fixing member 140 is not provided between the upper end T1 and the lower end T2 of the column assembly 110 in the present disclosure, but the assembly process of the combination structure of the assembly assembly 122 and the long hole fastener 116 of the storage layer 120 installed on the column assembly 110 in the aforementioned FIGS. 9 to 11 is also similar to that in FIGS. In Figures 12 to 15, the storage layer 120 is installed on the column group 110, and the assembly component 122 and the long hole fastener 116 are assembled. Therefore, Figures 12 to 15 illustrate the assembly process of the storage layer 120 located between the upper end T1 and the lower end T2 of the column group 110 and installed on the column group 110, as well as the assembly component 122 and the long hole fastener 116.

As shown in FIG. 12 , after the storage layer 120 is assembled to the lower end T2 of the column assembly 110 by the assembly assembly 122, the size of the assembly assembly 122 disclosed in the present disclosure is larger than the size of the concave square tube 112 of the column assembly 110, and another storage layer 120 is moved along the first assembly direction L2 in the concave square tube 112, and the square sleeve structure of the assembly assembly 122 is sleeved on the outer side of the concave square tube 112, and there will be an activity space, which is the space formed between the assembly assembly 122 and the concave square tube 112. The protruding column 122E faces and moves in the direction of the long hole fastener 116 (i.e., the same as the first assembly direction L2). The storage layer 120 continues to move along the first assembly direction L2 until the protruding column 122E is engaged with the elongated hole fastener 116, as shown in FIG. 15, so as to fix the storage layer 120 to the concave square tube 112 in the column assembly 110.

In addition, in one embodiment, as shown in FIG. 13 , the assembly component 122 is moved toward a second assembly direction L3, and the second assembly direction L3 is horizontal movement, or the protruding column 122E faces and moves toward the concave plate KA of the concave square tube 112, so that 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 long hole fastener 116. Then, the assembly component 122 is moved toward the first assembly direction L2 as shown in FIG. 14 until the protruding column 122E is fastened to the long hole fastener 116, as shown in FIG. 15 , so as to fix the storage layer 120 to the concave square tube 112 in the column assembly 110.

Similarly, the size of the snap-fit hole GD along the first assembly direction L2 is a gradually shrinking hole structure, and the tightness of the protruding column 122E from the open end GD1 to the end end GD2 will gradually shrink, making it easier for the protruding column 122E to enter the snap-fit hole GD. As the protruding column 122E continues to move along the first assembly direction L2, the size of the snap-fit hole GD gradually decreases, so that the protruding column 122E can be tightened in the snap-fit hole GD, and the assembler can be informed that the assembly is completed.

As shown in FIG. 1, after assembling the three storage layers 120 above the lower end T2 of the column set 110 in sequence, a storage layer 120 is then assembled on the upper end T1 of the column set 110, and the assembly steps are the same as those in FIG. 9 to FIG. 11. It can be seen that the size of the assembly component 122 in the storage layer 120 disclosed in the present disclosure is larger than the size of the concave square tube 112 of the column set 110, so these storage layers 120 can be moved up and down relative to the column set 110 along the lifting direction LA, and in the process of moving along the first assembly direction L2, the storage layer 120 is assembled on the column set 110, and the assembly fixing parts can be set on the upper end T1 and the lower end T2 of the column set 110 to improve the stability of the storage layer 120 assembled on the column set 110.

FIG. 16 is a three-dimensional partially enlarged exploded schematic diagram of the cover member and the assembly assembly of the present disclosure. Referring to FIG. 1 and FIG. 16, in one embodiment, a cover member 180 can be added on the column assembly 110 to cover the hollow tube above the column assembly 110 to increase the aesthetics. The cover member 180 can include a coupling structure 182, the structural shape of the coupling structure 182 matches the structural shape of the hollow portion LD, so that the coupling structure 182 is inserted into the hollow portion LD to install the cover member 180 on the column assembly 110.

In summary, the concave square tube lifting storage rack disclosed in the present invention has a simple and relatively stable assembly structure, and the storage layer can move along the lifting direction of the column assembly, thereby improving the overall convenience of use.

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

In addition, the present disclosure discloses that the size of the snap-fitting hole along the first assembly direction is a gradually shrinking hole structure, and the size of the snap-fitting hole gradually decreases from the open end to the end end, so that along the first assembly direction, during the movement of the protruding column from the open end to the end end, the tightness of the combination of the protruding column and the snap-fitting hole will gradually shrink, making it easier for the protruding column to enter the snap-fitting hole. However, as the protruding column continues to move along the first assembly direction, the size of the snap-fitting hole gradually decreases, so that the protruding column can be tightened in the snap-fitting hole, and the assembler can know that the assembly has been completed.

In addition, assembly fixings are respectively arranged at the upper and lower ends of the column assembly, so that the protruding column in the assembly assembly is tightly fixed outside the snap-fit hole, and the first assembly component, the second assembly component, and the third assembly component in the assembly assembly are respectively attached to the left plate, the right plate, and the bottom plate in the assembly fixing component, so that the assembly fixing component is located in the accommodating portion in the assembly assembly, so as to enhance the stability of the storage layer being arranged on the column assembly.

Furthermore, the bottom plate in the assembly fixture is an inclined structure, and the outer surface has an inclined angle relative to the inner surface, so that when the assembly component moves along the first assembly direction, the outer surface of the bottom plate has an increasing inclined angle along the first assembly direction, so that the tightness of the assembly component and the outer surface of the bottom plate will gradually be tightened. In this way, the receiving portion inside the assembly component is easier to accommodate the assembly fixture, and because the inclined angle of the outer surface of the bottom plate is increasing, the outer surface of the bottom plate can be tightly fixed in the receiving portion inside the assembly component, and the assembler can know that the assembly is completed.

In addition, the size of the assembly components in the storage layers of the present disclosure is larger than the size of the concave square tube of the column group, so these storage layers can be moved up and down relative to the column group along the lifting direction, and the storage layers can be assembled to the column group during the movement along the first assembly direction, and assembly fixings can be set at the upper and lower ends of the column group to improve the stability of the storage layers assembled to the column group.

Although the present disclosure has been disclosed as above by way of embodiments, it is not intended to limit the present disclosure. Anyone with ordinary knowledge in the relevant technical field may make some changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the definition of the attached patent application scope.

100: Concave square tube lifting rack 110: Column set 110A: First column set 110B: Second column set 112: Concave square tube 112A: First plate 112B: Second plate 112C: Third plate 112D: Bottom 112E: Assembly hole 116: Long hole fastener 116A: Fastener body 116B: Assembly fastener 120: Storage layer 121: Movable shelf 122: Assembly assembly 122A: First assembly 122B: Second assembly 122C: Third assembly 122D: Fourth assembly 122E: Protruding column 140: Assembly fixing 142A: left side panel 142B: right side panel 144: bottom side panel 144A: inner surface 144B: outer surface 144C: concave hole 146: assembly column 160: connecting piece 162: concave assembly 162A: protruding piece 164: hollow square assembly 170: foot column 172: bottom piece 174: locking piece 180: cover piece 182: joint structure BA, BC: holes CA: accommodating part L1: stacking direction L2: first assembly direction L3: second assembly direction LA: lifting direction LD: hollow part LD1, LD2: hollow concave part LD3: hollow body part GD: snap-fit hole GD1: opening end GD2: end end LM: tilt angle KA: concave plate KA1: concave part KA2: first plate part KA3: second plate part T1: upper end T2: lower end TA,TA1,TA2: assembly end

Figure 1 is a three-dimensional schematic diagram of an embodiment of a concave square tube lifting rack according to the present disclosure. Figure 2A is a three-dimensional schematic diagram of a first column group according to the present disclosure. Figure 2B is a three-dimensional schematic diagram of a second column group according to the present disclosure. Figure 2C is a three-dimensional schematic diagram of the assembly process of the first column group and the second column group according to the present disclosure. Figure 2D is a three-dimensional schematic diagram of the assembly of the foot column to the first column group according to the present disclosure. Figure 3 is a decomposition diagram of the assembly fixture and the column group according to the present disclosure. Figure 4 is a decomposition diagram of the concave square tube and the assembly fixture according to the present disclosure. Figure 5A is a three-dimensional schematic diagram of the assembly fixture according to the present disclosure. Figure 5B is a side schematic diagram of the assembly fixture according to the present disclosure. Figure 6 is a three-dimensional schematic diagram of the long hole fastener according to the present disclosure. FIG. 7 is a three-dimensional schematic diagram of a storage layer according to the present disclosure. FIG. 8 is a partial three-dimensional schematic diagram of an assembly component in a storage layer according to the present disclosure. FIG. 9 is a three-dimensional schematic diagram of a storage layer installed at the lower end of a column group and an assembly fixing member according to the present disclosure. FIG. 10 is a three-dimensional schematic diagram of a partial cross-section of a storage layer installed at the lower end of a column group and an assembly fixing member according to the present disclosure. FIG. 11 is a partial three-dimensional schematic diagram of a storage layer installed at the lower end of a column group and an assembly fixing member according to the present disclosure. FIG. 12 is a three-dimensional schematic diagram of a storage layer installed between the upper and lower ends of a column group according to the present disclosure. Figures 13 and 14 are three-dimensional schematic diagrams of the assembly process of the storage layer of the present disclosure being installed on the column assembly between the upper end and the lower end. Figure 15 is a three-dimensional schematic diagram of a partial cross-section of the protruding part of the storage layer of the present disclosure being engaged with the long hole fastener. Figure 16 is a three-dimensional partial enlarged exploded schematic diagram of the cover and assembly assembly of the present disclosure.

100: Concave square tube lifting rack

110: Column set

112: Concave square tube

120: Storage layer

122: Assemble components

170: Foot column

180: Covering parts

L1: Stacking direction

LA: Lifting direction

T1: Upper end

T2: Lower end

Claims (7)

A concave square tube lifting rack, comprising: A plurality of column groups, each comprising a concave square tube and a plurality of long hole fasteners, and each column group has an upper end and a lower end opposite to the upper end, each concave square tube comprises a first plate, a second plate, a third plate, and a concave plate, each first plate and the corresponding second plate are parallel to each other, the two sides of each third plate are respectively connected to the corresponding first plate and the corresponding second plate, the two sides of each concave plate are respectively connected to the corresponding first plate and the corresponding second plate, the long hole fasteners are respectively assembled on the concave plate at intervals, and each long hole fastener comprises a buckling hole, and each concave square tube has a hollow portion inside; A plurality of assembly fixings, wherein each of the assembly fixings comprises a left side panel, a right side panel, and a bottom side panel, wherein the two sides of each bottom side panel are respectively vertically connected to the corresponding left side panel and the right side panel, and the upper end and the lower end of each column assembly are respectively assembled with a corresponding assembly fixing, each left side panel is attached to the surface of the corresponding first panel, each right side panel is attached to the surface of the corresponding second panel, and each bottom side panel is attached to the surface of the corresponding third panel; and A plurality of storage layers, each including a movable shelf and four assembly components, the four assembly components are respectively arranged at the 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 include a plurality of protruding columns, the storage layers move along a first assembly direction, the protruding columns are respectively engaged in the corresponding engaging holes, so as to assemble the storage layers between the column groups, and the four assembly components in the corresponding storage layers located at the upper end and the lower end of each column group are respectively attached to the outer surface of the corresponding assembly fixing member. As described in claim 1, the concave square tube lifting storage rack, each of the snap-fit holes has an opening end and an end end opposite to each other, and along the first assembly direction, the size of the opening end in each of the snap-fit holes gradually decreases to the size of the corresponding end end. As described in claim 1, the concave square tube lifting rack, wherein each bottom side panel has an outer surface and an inner surface relative to each other, the outer surface has an inclination angle relative to the inner surface, and the inclination angle of the outer surface becomes larger along the first assembly direction. As described in claim 3, the concave square tube lifting storage rack, wherein each of the third plates is provided with a plurality of holes, and each of the assembly fixing members includes a plurality of assembly columns, which are respectively arranged and protrude from the inner surface of the corresponding bottom plate, and the assembly columns are assembled in the holes. A concave square tube lifting storage rack as described in claim 1, wherein each of the assembly components includes a first assembly component, a second assembly component, a third assembly component, a fourth assembly component, two protruding columns, and a receiving portion, each of the first assembly components is assembled together with the corresponding second assembly component, the third assembly component, and the fourth assembly component to form a square sleeve, and has the receiving portion, the protruding columns are arranged in the corresponding fourth assembly component, and one of the protruding positions of the protruding columns is located in the receiving portion, 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. A concave square tube lifting storage rack as described in claim 1, wherein each of the concave plate components includes a concave portion, a first plate portion, and a second plate portion, and both sides of each of the concave portions are connected to the corresponding first plate portion and the corresponding second plate portion, and each of the first plate portions is connected to the corresponding first plate component, and each of the second plate components is connected to the corresponding second plate component, and each of the elongated holes is fastened in the concave portion of the corresponding concave plate component, and both sides of each of the elongated holes is fastened between the corresponding first plate portion and the second plate portion. As described in claim 1, the concave square tube lifting storage rack, wherein each of the concave square tubes includes a plurality of fastener holes, and each of the elongated holes is fastened with a plurality of assembly fasteners, and the assembly fasteners are fastened to the fastener holes.