Insertion-type connection rod structure and foldable advertising stand

By designing the profile components and connecting components of the plug-in connecting rod structure, the structural stability problem of existing folding advertising racks when displaying large advertising images is solved, achieving a combination of strength and convenience, and adapting to customized needs of different sizes.

WO2026157752A1PCT designated stage Publication Date: 2026-07-30CHANGZHOU EXPOMAX ADVERTISING DISPLAY LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
CHANGZHOU EXPOMAX ADVERTISING DISPLAY LTD
Filing Date
2025-12-25
Publication Date
2026-07-30

AI Technical Summary

Technical Problem

Existing folding advertising racks lack structural stability when displaying large advertising images, and cannot guarantee the firmness and convenience of connections.

Method used

The design employs a plug-in connecting rod structure. By setting a clearance area on the end face edge of the profile component and inserting the connecting component, a stable connection of the profile components is achieved. The connecting part matches the through hole of the profile, making disassembly convenient.

Benefits of technology

It improves the structural strength and connection stability of the advertising rack while maintaining easy disassembly and operation, and can adapt to customized needs of different sizes.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2025145362_30072026_PF_FP_ABST
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Abstract

The present utility model relates to the technical field of advertising stands, and in particular to an insertion-type connection rod structure and a foldable advertising stand. The insertion-type connection rod structure comprises a plurality of profile assemblies and connecting assemblies. The connecting assemblies are arranged between adjacent profile assemblies. Each profile assembly is formed by alternately connecting a plurality of layers of profiles end to end, the edge of an end face of the profile assembly is provided with clearance areas for the connecting assemblies, each connecting assembly is provided with connecting parts inserted into through holes of a corresponding outer-layer profile, and the outer contour of each connecting part matches the contour of the inner wall of the corresponding through hole. In the present utility model, each profile assembly of the insertion-type connection rod structure is formed by alternately connecting the plurality of layers of profiles end to end to ensure the strength of the entire structure; the clearance areas for the connecting assemblies are arranged on the edge of the end face of each profile assembly, so that after the connecting assemblies and the profile assembly are mounted, there is no sense of incongruity, and the overall effect is good; and the connecting parts of the connecting assemblies are inserted into the through holes of the profiles, and match the through holes of the profiles, so that the disassembly is convenient, and the operation is easy.
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Description

Interlocking connecting rod structure and folding advertising frame Technical Field

[0001] This utility model relates to the field of advertising rack technology, and in particular to a plug-in connecting rod structure and a folding advertising rack. Background Technology

[0002] An advertising stand is a support structure used to display advertising images. It is typically made of metal or plastic and comes in various types and forms. Its main function is to fix and display advertising images, serving as a means of promotion and information dissemination. Considering the convenience of carrying, transporting, and storing, folding advertising stands are increasingly used in the market. However, most existing folding advertising stands use telescopic rods or hinged connections between connecting rods, which can only display smaller advertising images. For large advertising images, the structural stability of these folding advertising stands cannot be guaranteed. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a plug-in connecting rod structure in order to solve the problems existing in the prior art in the background art.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a plug-in connecting rod structure, including several profile components and connecting components, with connecting components provided between adjacent profile components, the profile components being formed by several layers of profiles connected end to end, the end face edge of the profile components being provided with a clearance area for the connecting components, the connecting components having a connecting part inserted into the through hole of the outer profile, and the outer contour of the connecting part matching the contour of the inner wall of the through hole.

[0005] Furthermore, the profile assembly includes an inner supporting profile group and connecting profiles symmetrically arranged on both sides of the supporting profile group. The supporting profile group has an even number of supporting profiles, which are connected end to end, and one end of the two outermost supporting profiles is respectively hinged to one end of the connecting profiles on both sides.

[0006] Furthermore, adjacent supporting profiles are connected by a first connector, which includes a first upright plate, a second upright plate, and a connecting block assembly, the connecting block assembly being connected to one end of the first upright plate and the second upright plate.

[0007] Furthermore, the connecting block group includes a first connecting block, a second connecting block, a third connecting block, and a fourth connecting block arranged in sequence. All four connecting blocks have an inverted C-shaped structure and are connected together in the middle. The first connecting block and the third connecting block have the same structure, and their two ends are connected to the first upright plate and the second upright plate, respectively. The second connecting block and the fourth connecting block are the same, and their two ends are connected to the first upright plate and the second upright plate, respectively.

[0008] Furthermore, the supporting profile and the connecting profile are connected by a second connector, which includes a connecting block I and a connecting block II. The connecting block I consists of a first covering part, a first hinge part, and a first connecting rod part covering one end of the connecting profile. The first connecting rod part cooperates with the through hole of the connecting profile. The connecting block II consists of a second covering part, a second hinge part, and a second connecting rod part covering one end of the supporting profile. The second hinge part intersects with the first hinge part, and the second connecting rod part cooperates with the through hole of the supporting profile.

[0009] Furthermore, the connecting component also includes a support portion, which is disposed at both ends of the support portion, and the connecting portion is evenly distributed with protrusions.

[0010] Furthermore, the outer surfaces of the connecting component and the profile component are on the same horizontal plane.

[0011] Furthermore, an extension profile is provided between adjacent profile components, and both ends of the extension profile are connected to the profile components through connecting components.

[0012] Furthermore, the outer surfaces of the extension profile, connecting assembly, and profile assembly are on the same horizontal plane.

[0013] A folding advertising rack is also provided, including the interlocking connecting rod structure described in the above solution.

[0014] The beneficial effects of this utility model are as follows: The profile component of the plug-in connecting rod structure of this utility model is composed of several layers of profiles connected end to end, ensuring the strength of the entire structure; the end face edge of the profile component is provided with a clearance area for the connecting component, so that the connecting component and the profile component are installed without any sense of disharmony and the overall effect is good; the connecting part of the connecting component is inserted into the through hole of the profile and matches the through hole of the profile, making disassembly convenient and easy to operate. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 is a structural schematic diagram of Embodiment 1 of this utility model.

[0017] Figure 2 is a structural schematic diagram of the profile component in Embodiment 1 of this utility model.

[0018] Figure 3 is a structural schematic diagram of the first connector in Figure 2.

[0019] Figure 4 is a schematic diagram of the structure of the second connector in Figure 2.

[0020] Figure 5 is a schematic diagram of the connecting component in Embodiment 1 of this utility model.

[0021] Figure 6 is a structural schematic diagram of Embodiment 2 of this utility model.

[0022] Figure 7 is a structural schematic diagram of Embodiment 3 of this utility model.

[0023] Figure 8 is an exploded view of Figure 7.

[0024] Figure 9 is a diagram showing the unfolding process of Figure 7.

[0025] Figure 10 is the complete unfolded view of Figure 7.

[0026] In the diagram: 1. Profile assembly; 10. Clearance area; 11. Supporting profile; 12. Connecting profile; 13. First connector; 131. First upright plate; 132. Second upright plate; 133. Connecting block assembly; 1331. First connecting block; 1332. Second connecting block; 1333. Third connecting block; 1334. Fourth connecting block; 14. Second connector; 141. Connecting block I; 1411. First covering part; 1412. First hinge part; 1413. First connecting rod part; 142. Connecting block II; 1421. Second covering part; 1422. Second hinge part; 1423. Second connecting rod part; 2. Connecting assembly; 21. Connecting part; 211. Protruding strip; 22. Support part; 3. Extension profile; 4. Upright pole; 5. Crossbar; 6. Rotating connector; 7. Fixed connector. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0028] Example 1

[0029] As shown in Figure 1, a plug-in connecting rod structure includes several profile assemblies 1 and connecting assemblies 2. Connecting assemblies 2 are provided between adjacent profile assemblies 1. Each profile assembly 1 is formed by alternating layers of profiles connected end-to-end. The end face edge of each profile assembly 1 has a clearance area 10 for the connecting assembly 2. The connecting assembly 2 has a connecting portion 21 that inserts into a through hole in the outer profile, and the outer contour of the connecting portion 21 matches the contour of the inner wall of the through hole. The outer surfaces of the connecting assembly 2 and the profile assembly 1 are on the same horizontal plane, ensuring the consistency of the overall connecting rod structure.

[0030] As shown in Figure 2, the profile assembly 1 includes an inner supporting profile group and connecting profiles 12 symmetrically arranged on both sides of the supporting profile group. The supporting profile group has four supporting profiles 11 (two are also possible, but six would be too many, with four being the preferred option). The four supporting profiles 11 are connected end to end, and one end of the two outermost supporting profiles 11 is hinged to one end of the connecting profiles 12 on both sides. Specifically, adjacent supporting profiles 11 are connected by a first connector 13, and the supporting profiles 11 and connecting profiles 12 are connected by a second connector 14.

[0031] As shown in Figure 3, the first connector 13 includes a first upright plate 131, a second upright plate 132, and a connecting block assembly 133. The connecting block assembly 133 is connected to one end of the first upright plate 131 and the second upright plate 132. The connecting block assembly 133 includes a first connecting block 1331, a second connecting block 1332, a third connecting block 1333, and a fourth connecting block 1334 arranged sequentially. All four connecting blocks have an inverted C-shaped structure, and the four connecting blocks are connected together in the middle. The first connecting block 1331 and the third connecting block 1333 have the same structure, and their two ends are connected to the first upright plate 131 and the second upright plate 132, respectively. The second connecting block 1332 and the fourth connecting block 1334 are the same, and their two ends are connected to the first upright plate 131 and the second upright plate 132, respectively.

[0032] As shown in Figure 4, the second connector 14 includes a connecting block I 141 and a connecting block II 142. The connecting block I 141 consists of a first covering part 1411 covering one end of the connecting profile 12, a first hinge part 1412, and a first connecting rod part 1413. The first connecting rod part 1413 cooperates with the through hole of the connecting profile 12. The connecting block II 142 consists of a second covering part 1421 covering one end of the supporting profile 11, a second hinge part 1422, and a second connecting rod part 1423. The second hinge part 1422 intersects with the first hinge part 1412, and the second connecting rod part 1423 cooperates with the through hole of the supporting profile 11.

[0033] As shown in Figure 5, the connecting assembly 2 also includes a support portion 22, and connecting portions 21 are disposed at both ends of the support portion 22. Raised strips 211 are evenly distributed on the connecting portions 21. Raised strips are also evenly distributed on the outer surfaces of the first connecting rod portion 1413 and the second connecting rod portion 1423 to ensure the firmness of the connection.

[0034] Example 2

[0035] As shown in Figure 6, the difference from Embodiment 1 is that it facilitates customer customization of the display rack size. The length of the interlocking connecting rod structure can be increased according to customer requirements. Specifically, an extension profile 3 is provided between adjacent profile components 1. Both ends of the extension profile 3 are connected to the profile component 1 through connecting components 2, and the outer surfaces of the extension profile 3, connecting components 2, and profile component 1 are on the same horizontal plane. The structure of the extension profile 3 is the same as the structure of the connecting part 21 of the connecting component 2, except that it is longer than the connecting part 21.

[0036] Example 3

[0037] As shown in Figure 7, a folding advertising frame includes a plug-in connecting rod structure as described in Embodiment 1 or Embodiment 2. As shown in Figure 8, the two uprights 4 of the folding advertising frame are the plug-in connecting rod structure of Embodiment 1. The crossbars 5 of the advertising frame are composed of multiple sets of spliced ​​components, generally two or more sets. The crossbars 5 are connected by a rotating connector 6, and the crossbars 5 are connected to the uprights 4 by a fixed connector 7. As shown in Figure 9, the folding advertising frame is slowly opened by pulling one or both uprights 4 simultaneously until the rotating connector 6 is rotated to its maximum position, as shown in Figure 10, transforming it into a rectangular frame structure.

[0038] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A plug-in connecting rod structure, characterized in that: It includes several profile components (1) and connecting components (2). A connecting component (2) is provided between adjacent profile components (1). The profile component (1) is formed by alternating connection of several layers of profiles. The end face edge of the profile component (1) is provided with a clearance area (10) of the connecting component (2). The connecting component (2) has a connecting part (21) that is inserted into the through hole of the outer profile, and the outer contour of the connecting part (21) matches the contour of the inner wall of the through hole.

2. The plug-in connecting rod structure according to claim 1, characterized in that: The profile assembly (1) includes an inner supporting profile group and connecting profiles (12) located on both sides of the supporting profile group and symmetrically arranged. The supporting profile group is provided with an even number of supporting profiles (11), the even number of supporting profiles (11) are connected end to end, and one end of the two outermost supporting profiles (11) is respectively hinged to one end of the connecting profiles (12) on both sides.

3. The plug-in connecting rod structure according to claim 2, characterized in that: The adjacent support profiles (11) are connected by a first connector (13), which includes a first upright plate (131), a second upright plate (132) and a connecting block assembly (133), which is connected to one end of the first upright plate (131) and the second upright plate (132).

4. The plug-in connecting rod structure according to claim 3, characterized in that: The connecting block group (133) includes a first connecting block (1331), a second connecting block (1332), a third connecting block (1333), and a fourth connecting block (1334) arranged in sequence. All four connecting blocks have an inverted C-shaped structure and are connected together in the middle. The first connecting block (1331) and the third connecting block (1333) have the same structure, and their two ends are connected to the first upright plate (131) and the second upright plate (132) respectively. The second connecting block (1332) and the fourth connecting block (1334) are the same, and their two ends are connected to the first upright plate (131) and the second upright plate (132) respectively.

5. The plug-in connecting rod structure according to claim 2, characterized in that: The supporting profile (11) and the connecting profile (12) are connected by a second connector (14). The second connector (14) includes a connecting block I (141) and a connecting block II (142). The connecting block I (141) is composed of a first covering part (1411), a first hinge part (1412), and a first connecting rod part (1413) covering one end of the connecting profile (12). The first connecting rod part (1413) cooperates with the through hole of the connecting profile (12). The connecting block II (142) is composed of a second covering part (1421), a second hinge part (1422), and a second connecting rod part (1423) covering one end of the supporting profile (11). The second hinge part (1422) intersects with the first hinge part (1412), and the second connecting rod part (1423) cooperates with the through hole of the supporting profile (11).

6. The plug-in connecting rod structure according to claim 1, characterized in that: The connecting component (2) further includes a support (22), and the connecting part (21) is disposed at both ends of the support (22), and the connecting part (21) is evenly distributed with protrusions (211).

7. The plug-in connecting rod structure according to claim 6, characterized in that: The outer surfaces of the connecting component (2) and the profile component (1) are on the same horizontal plane.

8. The plug-in connecting rod structure according to claim 1, characterized in that: An extension profile (3) is provided between adjacent profile components (1), and both ends of the extension profile (3) are connected to the profile component (1) through a connecting component (2).

9. The plug-in connecting rod structure according to claim 8, characterized in that: The outer surfaces of the extension profile (3), the connecting component (2), and the profile component (1) are on the same horizontal plane.

10. A folding advertising rack, characterized in that: It includes the plug-in connecting rod structure as described in any one of claims 1 to 9.