Connecting structure and storage device

Abstract

A connecting structure, comprising an upright (10) and a shelving member (20) sleeved on the upright (10) via a sleeve (201), wherein each upright (10) comprises a plurality of modular segments (101), any two adjacent modular segments (101) being joined together, and at least one pair of positioning holes (102) running through side walls at the joint; each joint is correspondingly enclosed by a clamp assembly (30) consisting of a first clamping piece (301) and a second clamping piece (302), the inner side surfaces of both the first clamping piece (301) and the second clamping piece (302) being provided with protrusions (303) that cooperate with the positioning holes (102); the sleeve (201) of the shelving member (20) is fitted over the clamp assembly (30). The protrusions (303) on the inner side surfaces of the clamp assembly (30) correspondingly pass through the positioning holes (102) at the joint of the upright (10) to enclose the joint of the upright (10), and then the sleeve (201) of the shelving member (20) is fitted over the clamp assembly (30), such that the clamp assembly (30) tightly grips the upright (10); this not only facilitates easy installation, but also enhances the structural stability of the connecting structure, thereby significantly improving the practicability of the connecting structure. Further provided is a storage device.

Description

Connection structure and storage device Technical Field

[0001] This invention relates to the field of furniture technology, and in particular to a connection structure and storage device. Background Technology

[0002] As people's living standards improve, the number of items in homes and offices is constantly increasing, leading to a growing demand for storage shelves. Consumers require more convenient, efficient, and stable shelves to categorize and organize items, maintaining a clean and orderly space. Furthermore, consumers expect shelves to not only fulfill storage functions but also be easy to assemble and disassemble to adapt to different spatial layouts and usage needs. This drives continuous exploration of new connection methods to improve the assembly efficiency and flexibility of storage shelves.

[0003] Existing shelving units or trolleys primarily consist of shelves supported by multiple bamboo-joint tubes, with the edges of the shelves connected to the tubes via sleeves (trolleys typically have casters mounted below the bamboo-joint tubes) for detachable connection. However, when multiple shelves exist, replacing a middle shelf requires removing all the remaining shelves above it one by one, replacing the shelf in question, and then reinstalling the shelves one by one.

[0004] Therefore, how to provide a connection structure that is easy to install, structurally stable, and can be disassembled at will is an urgent technical problem to be solved. Summary of the Invention

[0005] This invention provides a connection structure and storage device to solve the problems of cumbersome installation and poor structural stability of existing connection structures.

[0006] The technical solution of the present invention is a connection structure, which includes a column and a storage component sleeved on the column; each column includes multiple modular segments, any two adjacent modular segments are sleeved together, and at least one pair of positioning holes are provided through the side wall at the sleeve.

[0007] Each of the aforementioned sockets is correspondingly surrounded by a clamping piece combination consisting of a first clamping piece and a second clamping piece, and the inner surfaces of the first clamping piece and the second clamping piece are provided with protrusions that cooperate with the positioning holes;

[0008] The sleeve of the object holder is fitted onto the clamp assembly.

[0009] Furthermore, at both ends of the connection between the first clip and the second clip, at least one locking block and / or at least one locking slot are respectively provided;

[0010] The card block engages with the corresponding card slot.

[0011] Furthermore, the outer diameter of any of the clamping pieces increases sequentially from the top to the bottom along the axial direction, and the inner diameter of the sleeve increases sequentially from the top to the bottom along the axial direction.

[0012] Furthermore, each pair of positioning holes is located on the same cross-section perpendicular to the radial direction of the column, and is symmetrically distributed along the radial direction of the column.

[0013] Furthermore, the lower end of the module segment located inside the socket is provided with a socket portion, which can be matched and inserted into the upper end of the module segment located outside the socket.

[0014] Furthermore, the size of the bump gradually decreases along its protruding direction.

[0015] Furthermore, the material of the clamp assembly and / or the column is any one of carbon steel, stainless steel, and aluminum alloy.

[0016] The present invention also proposes a storage device, which includes the connection structure described above.

[0017] Furthermore, the storage device includes any one of a shelf, wall-mounted rack, or storage cart.

[0018] Furthermore, the inner wall of the module segment located at the socket is provided with a protrusion, and the surface of the socket is provided with a spiral groove for the end of the protrusion to be embedded.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] This invention uses protrusions on the inner side of the clamp assembly to correspond to the positioning holes at the column connection point, thereby enclosing the connection point of the column. Then, the sleeve of the object is fitted onto the clamp assembly, so that the clamp assembly tightly hugs the column. This not only makes installation convenient, but also improves the structural stability of the connection structure, significantly enhancing the practical value of the connection structure.

[0021] This invention, by adding automatically pop-out protrusions and spiral grooves, enables the socket to form a self-locking function after insertion, guided by the spiral grooves. It can only rotate and cannot move vertically, further ensuring a firm connection at the socket and preventing loosening. At the same time, it enables rapid docking of the positioning holes, improves docking accuracy, and increases assembly efficiency.

[0022] In addition, several inwardly recessed straight grooves provide initial guidance. The top of any groove is connected to the spiral groove. The protrusion can slide directly into the spiral groove through the groove when it aligns with any groove. Under the elastic force of the spring, the protrusion fits tightly against the inner wall of the spiral groove, assisting the sleeve part to rotate and move downward, thus improving the flexibility of the structural connection process. Attached Figure Description

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects and not to describe a particular order.

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 is a partially exploded schematic diagram of the first connection structure proposed in this invention;

[0026] Figure 2 is a partially exploded schematic diagram of another connection structure proposed in this invention;

[0027] Figure 3 is a schematic diagram of the storage device proposed in this invention;

[0028] Figure 4 is an enlarged schematic diagram of reference numeral A in Figure 3;

[0029] Figure 5 is a partially exploded schematic diagram of the second connection structure proposed in this invention;

[0030] Figure 6 is a partial cross-sectional view of the connection structure proposed in this invention.

[0031] Figure 7 is a partially exploded schematic diagram of the third connection structure proposed in this invention.

[0032] Figure 8 is a schematic diagram of the convex point sliding to the initial section of the spiral groove proposed in this invention.

[0033] Figure 9 is a schematic diagram of the protrusions abutting against the surface of the groove proposed in this invention.

[0034] Figure 10 is a schematic diagram of the partial decomposition of the protrusion proposed in this invention.

[0035] Figure label:

[0036] 10. Columns;

[0037] 101. Module segment; 102. Positioning hole; 103. Socket part; 104. Sleeve; 105. Protrusion; 106. Spring; 107. Spiral groove; 108. Groove;

[0038] 20. To store items;

[0039] 201. Sleeve;

[0040] 30. Clip assembly;

[0041] 301. First clip; 302. Second clip; 303. Protrusion; 304. Locking block; 305. Locking slot. Detailed Implementation

[0042] To make the technical problems, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Therefore, a feature pointed out in this specification is used to illustrate one feature of one embodiment of the invention, and does not imply that every embodiment of the invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0043] The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0044] In some embodiments, as shown in Figures 1-2, the present invention proposes a connection structure, the connection structure including a column 10 and a placement component 20 sleeved on the column 10 through a sleeve 201; each column 10 includes multiple module segments 101, any two adjacent module segments 101 are sleeved together, and at least one pair of positioning holes 102 are provided through the side wall at the sleeve.

[0045] Each of the aforementioned sockets is correspondingly surrounded by a clip assembly 30 consisting of a first clip 301 and a second clip 302. The inner surfaces of the first clip 301 and the second clip 302 are provided with protrusions 303 that cooperate with the positioning holes 102.

[0046] The sleeve 201 of the placement component 20 is fitted onto the clip assembly 30.

[0047] It is understood that the column 10 in this embodiment is illustrated as a cylinder, but of course, the column 10 can also be prismatic or other suitable shapes, which are not limited here. Each positioning hole 102 penetrates the sidewalls of the two module segments 101 located at the socket; and the inner sides of the first clamping piece 301 and the second clamping piece 302 are provided with arc-shaped contact surfaces that match the outer contour of the column 10.

[0048] In this embodiment, any two adjacent module segments 101 are first connected together, and the positioning holes 102 of the two connected module segments 101 are aligned. Then, the protrusions 303 of the first clip 301 and the second clip 302 are matched and embedded into the corresponding positioning holes 102, thereby surrounding the connection of the column 10 to form a clip assembly 30. Then, the sleeve 201 of the object 20 is matched and fitted onto the clip assembly 30. The sleeve 201 will tightly squeeze the clip assembly 30 under the combined gravity of the object 20 and the items placed on it, thereby making the clip assembly 30 tightly hug the connection of the column 10, and thus making the object 20 stably placed on the column 10 (as shown in Figures 4 and 6). This process is repeated multiple times to form a storage device with multiple layers of objects 20.

[0049] Furthermore, when it is necessary to disassemble the storage component 20 in any position, the storage component 20 in that position can be lifted upwards to disengage it from the corresponding clip assembly 30. Then, the protrusions 303 of the first clip 301 and the second clip 302 can be disengaged from the corresponding positioning holes 102. Then, the two module segments 101 at the corresponding socket can be separated and disassembled. The storage component 20 of that layer can then be removed. Thus, the connection structure proposed in this embodiment can not only be disassembled at will, but the disassembly steps are also simpler, and it can flexibly adapt to different spatial environments and storage needs.

[0050] Therefore, the present invention uses the protrusion 303 on the inner side of the clip assembly 30 to simultaneously pass through the positioning hole 102 at the sleeve of the column 10 to surround the sleeve of the column 10. Then, the sleeve 201 of the object 20 is fitted onto the clip assembly 30, thereby making the clip assembly 30 tightly hug the column 10. This not only makes installation convenient, but also improves the structural stability of the connection structure and significantly enhances the practical value of the connection structure.

[0051] In this embodiment, the shape of the protrusion 303 is preferably frustum-shaped. Of course, the shape of the protrusion 303 can also be selected as cylindrical, spherical, elliptical, prismatic or other suitable shapes for insertion according to actual needs, and is not limited here.

[0052] In some embodiments, the size of the bump 303 gradually decreases along its protruding direction.

[0053] It is understandable that when the protrusion 303 is frustoconical, the diameter of the end of the protrusion 303 connected to the clamping piece is the largest, which can better fix the first clamping piece 301 and the second clamping piece 302 at the socket, thereby preventing the protrusion 303 of the first clamping piece 301 and the second clamping piece 302 from easily disengaging from the corresponding positioning hole 102.

[0054] In some embodiments, to further improve the structural stability of the sleeve joint of the clamp assembly 30 surrounding the column 10, as shown in FIG1, at both ends of the connection between the first clamp 301 and the second clamp 302 are respectively provided with at least one locking block 304 and / or at least one locking groove 305.

[0055] The card block 304 engages with the corresponding card slot 305.

[0056] It is understandable that when the first clip 301 and the second clip 302 surround the column 10, each end of the first clip 301 and the second clip 302 distributed along the circumference of the column 10 is provided with at least one locking block 304 and / or at least one locking groove 305.

[0057] Furthermore, the card block 304 and card slot 305 described in this embodiment are illustrated using only one example. Of course, the number of card blocks 304 and card slots 305 can be set to two or more depending on the actual situation, and this is not limited here.

[0058] In this way, when the protrusions 303 of the first clip 301 and the second clip 302 are matched and embedded into the corresponding positioning holes 102, the locking block 304 of the first clip 301 can also be matched and locked into the slot 305 of the second clip 302, and the locking block 304 of the second clip 302 is matched and locked into the slot 305 of the first clip 301 (as shown in Figure 2), thereby forming a clip assembly 30 by surrounding the sleeve of the column 10.

[0059] Of course, in other embodiments (not shown in the figure), in order to further improve the structural stability of the sleeve joint of the clamping piece assembly 30 surrounding the column 10, two locking blocks 304 are vertically provided at both ends of the connection of the first clamping piece 301.

[0060] Both ends of the connection of the second clip 302 are provided with vertical slots 305 that cooperate with the clip block 304.

[0061] As shown in Figure 5, when each of the first clip 301 and the second clip 302 has two or more protrusions 303, the corresponding positioning holes 102 at the sleeve of the column 10 are also provided in two or more; and at this time, the protrusions 303 on the first clip 301 and the second clip 302 are arranged side by side, vertically, or at an angle, which is not limited here.

[0062] In some embodiments, to ensure that the sleeve 201 can better compress the clamp assembly 30 due to the weight of the object 20 and the object it holds, thereby improving the stability of the connection structure and the storage device, the outer diameter of any of the clamp assemblies 30 proposed in this embodiment increases sequentially from the top to the bottom along the axial direction, and the inner diameter of the sleeve 201 increases sequentially from the top to the bottom along the axial direction; the inner side of the sleeve 201 and the outer side of the clamp assembly 30 form a progressive fit structure.

[0063] It is understood that the sleeve 201 and the clamping piece assembly 30 proposed in this embodiment are preferably frustum-shaped; of course, the shape of the sleeve 201 and the clamping piece assembly 30 can also be selected as frustum-shaped or other suitable shapes according to the actual situation, which is not limited here.

[0064] Thus, when the sleeve 201 is fitted onto the clamp assembly 30, the inner diameter of the sleeve 201 increases sequentially from the top to the bottom. As the sleeve 201 moves downward due to the weight of the object 20 and the object it holds, the sleeve 201 and the clamp assembly 30 will have a synergistic effect of interference fit accumulation and geometric constraint reinforcement, resulting in a multiplied increase in the squeezing force, contact area, and anti-slip resistance between them, thus making the connection more stable.

[0065] The cumulative effect of overshoot is as follows:

[0066] 1. The interference fit between sleeve 201 and clamp assembly 30 increases with depth. Assuming the cone angle of sleeve 201 and clamp assembly 30 is θ (as shown in Figure 2, the cone angle θ is the angle between the generatrix of sleeve 201 or clamp assembly 30 and its axis), and the fitting depth is h, then the interference fit δ has a linear relationship with the depth:

[0067] δ = h × tanθ;

[0068] When the sleeve is fully engaged at the bottom, h reaches its maximum, the interference fit δ reaches its peak, and the positive pressure P on the contact surface (equivalent to the inner surface of the sleeve 201 and / or the outer surface of the clamp assembly 30) increases simultaneously.

[0069] ;

[0070] Where E is the elastic modulus. Where is Poisson's ratio, and D is the average diameter of the contact surface.

[0071] 2. The friction between the sleeve 201 and the clamp assembly 30 also increases exponentially.

[0072] An increase in contact pressure P leads to an increase in frictional force F f Significant improvement:

[0073] F f =μ×P×A;

[0074] A = π × D × L;

[0075] Where μ is the coefficient of friction, A is the contact area, and L is the contact length.

[0076] Therefore, the frictional force is proportional to the depth h, and the bottom region of the clip assembly 30 has the strongest anti-slip capability.

[0077] Geometric constraint strengthening specifically refers to:

[0078] 1. The contact surface angle of the sleeve 201 and the clamping plate assembly 30 is self-locking.

[0079] The cone angle θ must satisfy the self-locking condition:

[0080] θ≤arctanμ;

[0081] When the sleeve 201 is fitted to the bottom, the actual contact angle of the contact surface approaches 0°, forming an approximately rigid constraint, which requires a great external force to break the balance.

[0082] 2. Improved resistance to eccentric loads.

[0083] The bottom area of ​​the sleeve 201 and the clamp assembly 30 has a larger contact area, and the moment of inertia I of the cross section increases to the fourth power with the increase of the diameter.

[0084] ;

[0085] Where Do is the diameter of sleeve 201 and Di is the diameter of clamp assembly 30.

[0086] A larger cross-sectional moment of inertia I significantly improves bending stiffness and suppresses axial offset caused by eccentric loading.

[0087] In some embodiments, each pair of positioning holes 102 is located on the same cross section perpendicular to the radial direction of the column 10, and each pair of positioning holes 102 is symmetrically distributed along the radial direction of the column 10.

[0088] This ensures the structural stability of the clamp assembly 30 when it surrounds the sleeve of the column 10. Of course, if there are two or more pairs of positioning holes 102, the different pairs of positioning holes 102 do not have to be on the same cross-section.

[0089] In some embodiments, to ensure that the column 10 can be detachably connected, as shown in Figures 1 and 6, the lower end of the module segment 101 located inside the socket is provided with a socket part 103, which can be matched and inserted into the upper end of the module segment 101 located outside the socket.

[0090] It is understandable that the diameter of the socket 103 is smaller than the diameter of the top of the module segment 101, and the socket 103 is inserted into the upper end of the module segment 101.

[0091] To ensure the durability of the clamp assembly, the clamp assembly 30 is made of any one of carbon steel, stainless steel, and aluminum alloy. Of course, the clamp assembly 30 can also be made of other metals and highly durable materials, which are not limited here.

[0092] To ensure the durability of the clamp assembly, the column 10 is made of any one of carbon steel, stainless steel, and aluminum alloy. Of course, the column 10 can also be made of other metals and highly durable materials, which are not limited here.

[0093] In some embodiments, the present invention also provides a storage device, the storage device including the connection structure described above.

[0094] It is understandable that the positioning hole 102 at the sleeve of the column 10 of the storage device corresponds to the protrusion 303 on the inner side of the clip assembly 30, so as to surround the sleeve of the column 10. Then the sleeve 201 of the object 20 is fitted onto the clip assembly 30, so that the clip assembly 30 tightly hugs the column 10. This not only makes installation convenient, but also improves the structural stability of the storage device and significantly enhances the practical value of the storage device.

[0095] Furthermore, when it is necessary to disassemble the storage device at any position of the storage component 20, the storage component 20 at that position can be lifted upwards to disengage it from the corresponding clip assembly 30. Then, the protrusions 303 of the first clip 301 and the second clip 302 can be disengaged from the corresponding positioning holes 102. Then, the two module segments 101 at the corresponding socket can be separated and disassembled. The storage component 20 of that layer can then be removed. Thus, the storage device proposed in this embodiment can not only be disassembled at will, but the disassembly steps are also simpler, and it can flexibly adapt to different spatial environments and storage needs.

[0096] The storage device includes any one of a shelf, a wall-mounted shelf, or a storage cart.

[0097] Specifically, as shown in Figure 3, when the storage device is preferably a shelf, the shelf 20 is preferably a square shelf, and each of the four corners of the shelf is provided with a sleeve 201. Then, all the sleeves 201 of the shelf are respectively fitted onto the clip assembly 30 at the joint of different uprights 10, thereby forming a shelf.

[0098] Of course, the shape of the shelves can also be selected as a triangle or other suitable shape depending on the actual situation, and there are no restrictions here.

[0099] When the shelf is triangular in shape, a sleeve 201 is provided at each of the triangular parts of the shelf. Each sleeve 201 is then fitted onto the clip assembly 30 at the joint of different uprights 10, thereby forming a shelf.

[0100] Specifically, when the storage device is preferably a storage cart, the storage component 20 is preferably a square storage frame, and sleeves 201 are provided in the middle of both sides of the storage frame. Then, all the sleeves 201 of the storage frame are respectively fitted onto the clip assembly 30 at the joint of different uprights 10, and each upright 10 is provided with a roller at its bottom end, thereby forming a storage cart.

[0101] Of course, the shape of the storage box can also be selected as oval or other suitable shapes depending on the actual situation, and there are no restrictions here.

[0102] In some embodiments, the present invention also proposes a connection structure, as shown in FIG7, wherein the inner wall of the module segment 101 located at the socket is provided with a protrusion, and the surface of the socket 103 is provided with a spiral groove 107 for the end of the protrusion to be embedded.

[0103] The protruding part is the sleeve 104 and the protrusion 105 that slides along the inner wall of the sleeve 104. A spring 106 is connected between the protrusion 105 and the sleeve 104.

[0104] The surface of the sleeve portion 103 is provided with a spiral groove 107 into which the protrusion 105 can be inserted. One side of the outer wall of the sleeve portion 103 is provided with several inwardly recessed straight grooves 108, and the straight length of the grooves 108 gradually increases.

[0105] The sleeve 104 traverses the inner wall of the module segment 101. As the socket 103 is inserted into the module segment 101, the protrusion 105 abuts against the surface of any groove 108, accompanied by the compression of the spring 106.

[0106] The protrusion 105 of the protrusion is embedded in the inner wall of the spiral groove 107, fits it tightly, and slides along its inner wall. The spiral groove 107 surrounds the surface of the socket 103 and avoids the positioning hole 102. After the lower module segment 101 is inserted, the socket 103 is guided by the spiral groove 107 to rotate and move downward at the same time, so that the socket 103 forms a self-locking function after insertion, and can only rotate and cannot move vertically, further ensuring that the connection of the socket is firm and preventing loosening.

[0107] Furthermore, as shown in Figure 8, when the sleeve part 103 and the module segment 101 are docked under the guidance of the spiral groove 107, there is no need to align the positioning hole 102. As the protrusion 105 slides to the end of the spiral groove 107, the positioning hole 102 of the sleeve part 103 and the positioning hole 102 of the module segment 101 begin to overlap, realizing the rapid docking of the positioning hole 102, improving docking accuracy, and increasing assembly efficiency.

[0108] In addition, several inwardly recessed straight grooves 108 are used for initial guidance. The grooves 108 are distributed on one side of the outer wall of the sleeve part 103 and do not contact the positioning hole 102. The length of the grooves 108 gradually increases, and the top of the grooves 108 extends to the groove surface of the spiral groove 107 and communicates with the spiral groove 107. After the module segment 101 is inserted into the sleeve part 103, it can be accurately connected without repeated calibration, which improves the flexibility of the structural connection process.

[0109] Specifically, as shown in Figures 9 and 10, as the socket 103 is inserted into the module segment 101, during the insertion process, any groove 108 on the surface of the socket 103 begins to contact the protrusion 105. It should be noted that the diameter of the socket 103 gradually decreases, and the groove 108 always adheres to the outer surface of the socket 103. Therefore, the bottom end of the groove 108 is recessed inward along with the socket 103. This recess can make initial contact with the protrusion 105 and simultaneously guide the protrusion 105 smoothly into the groove 108. The top of any groove 108 is connected to the spiral groove 107. The protrusion 105 can slide directly into the spiral groove 107 through the groove 108 when it engages with any groove 108. Under the elastic force of the spring 106, the protrusion 105 pops out and embeds into the inner wall of the spiral groove 107, assisting the socket 103 in rotating and moving downward.

[0110] Obviously, the embodiments described above are merely some embodiments of the present invention, not all embodiments. The accompanying drawings show preferred embodiments of the present invention, but do not limit the patent scope of the present invention. The present invention can be implemented in many different forms; rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this invention.

Claims

1. A connecting structure comprising a column (10) and a storage component (20) sleeved on the column (10) via a sleeve (201); characterized in that, Each of the columns (10) includes multiple module segments (101), any two adjacent module segments (101) are nested together, and at least one pair of positioning holes (102) are provided through the side wall at the nesting point. Each of the sockets is surrounded by a clip assembly (30) consisting of a first clip (301) and a second clip (302), and the inner surfaces of the first clip (301) and the second clip (302) are provided with protrusions (303) that cooperate with the positioning hole (102). The sleeve (201) of the placement component (20) is fitted onto the clip assembly (30).

2. The connection structure according to claim 1, characterized in that, At both ends of the connection between the first clip (301) and the second clip (302), there are at least one locking block (304) and / or at least one locking slot (305). The card block (304) engages with the corresponding card slot (305).

3. The connection structure according to claim 1, characterized in that, The outer diameter of any of the clamping pieces (30) increases sequentially from the top to the bottom along the axial direction, and the inner diameter of the sleeve (201) increases sequentially from the top to the bottom along the axial direction.

4. The connection structure according to claim 1, characterized in that, Each pair of positioning holes (102) is located on the same cross section perpendicular to the radial direction of the column (10) and is symmetrically distributed along the radial direction of the column (10).

5. The connection structure according to claim 1, characterized in that, The lower end of the module segment (101) located inside the socket is provided with a socket part (103), which can be matched and inserted into the upper end of the module segment (101) located outside the socket.

6. The connection structure according to claim 1, characterized in that, The size of the bump (303) gradually decreases along its protruding direction.

7. The connection structure according to any one of claims 1-6, characterized in that, The clamp assembly (30) and / or the column (10) are made of any one of carbon steel, stainless steel and aluminum alloy.

8. A storage device, characterized in that, The storage device includes the connection structure described in any one of claims 1-7.

9. The storage device according to claim 8, characterized in that, The storage device includes any one of a shelf, wall-mounted rack, or storage cart.

10. The connection structure according to claim 5, characterized in that, The inner wall of the module segment (101) located at the socket is provided with a protrusion, and the surface of the socket (103) is provided with a spiral groove (107) for the end of the protrusion to be inserted.

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