Penetrating type eccentric wheel, laminate connecting assembly and adjusting tool

The design of the through-type eccentric wheel solves the problem of limited adjustment tools under the middle shelf in existing technology, enabling convenient installation and adjustment and simplifying the furniture connection process.

CN223839490UActive Publication Date: 2026-01-27FOSHAN AI RUITE HARDWARE PROD CO LTD
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Patent Information

Application Number
CN202520762175.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2026-01-27
Estimated Expiration
2035-04-22

AI Technical Summary

Technical Problem

Existing furniture connectors are limited when installing adjustment tools under shelves, and require disassembly or drilling to adjust the adjusting feet, increasing the complexity of installation and adjustment.

Method used

Design a through-type eccentric wheel with a through channel that connects to the upper and lower surfaces of the shelf. Adjustment tools can be inserted from above and below. The first and second operating parts are combined to rotate and lock the connecting rod and adjusting foot, avoiding disassembly or drilling.

Benefits of technology

It enables convenient installation and adjustment from both above and below the shelf, simplifying the connection process and reducing workload.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a through-type eccentric wheel, a laminate connecting assembly and an adjusting tool, and the through-type eccentric wheel comprises an eccentric wheel main body, the eccentric wheel body is provided with a penetrating channel penetrating through the upper end and the lower end of the eccentric wheel body, a first operation part located on a penetrating path of the penetrating channel, an installation inlet allowing the end, provided with the protruding part, of the connecting rod to be inserted therein, and a locking structure used for locking the end, provided with the protruding part, of the connecting rod. And the locking structure is communicated with the mounting inlet. Comprising a laminate connecting assembly of a penetrating type eccentric wheel, a connecting rod and an expansion plug, and the laminate connecting assembly is used for connecting a laminate and a vertical plate. The adjusting tool is provided with an outer protruding structure used for being matched with the first operation part and the supporting adjusting piece of the adjusting foot, and an inner concave structure used for avoiding the first operation part. The through type eccentric wheel can be conveniently installed and connected with the connecting rod, and the adjusting feet can be conveniently adjusted.
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Description

Technical Field

[0001] This utility model relates to the technical field of furniture installation accessories, and in particular to a through-type eccentric wheel, a shelf connection assembly, and an adjustment tool. Background Technology

[0002] In the current furniture assembly field, when it is necessary to connect uprights and shelves, the traditional three-in-one connector (consisting of an eccentric wheel, a connecting rod, and a pre-embedded nut) is widely used. The specific connection method is as follows: the end of the connecting rod with a protrusion is inserted into the eccentric wheel mounted on the shelf, while the threaded end of the connecting rod is inserted into the pre-embedded nut in the upright. The eccentric wheel itself is installed in the mounting groove of the shelf, and its top is designed with an adjustment groove that matches the adjustment tool for installation and adjustment operations.

[0003] However, this traditional connection method has some problems. If the mounting slot is located on the lower surface of the shelf, and the eccentric wheel's adjustment slot faces downwards, installation and adjustment using adjustment tools must be performed below the shelf. When there are leveling feet for adjusting furniture below the shelf, it restricts the operating space of the adjustment tools, making the installation and adjustment of the eccentric wheel inconvenient. Furthermore, although for cases where the mounting slot is located on the upper surface of the shelf, with the eccentric wheel's adjustment slot facing upwards, allowing installation and adjustment using adjustment tools above the shelf, for leveling feet that need to be adjusted above (including the connecting seat to the upright and the support adjustment component threaded to the connecting seat), it is usually necessary to first remove the shelf above the leveling foot, or drill a separate hole in the shelf (for the adjustment tool to pass through), before inserting the adjustment tool into the support adjustment component of the leveling foot to adjust it. This undoubtedly increases the complexity and workload of installation and adjustment. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a through-type eccentric wheel, which is convenient for installation and connection with the connecting rod, and also convenient for adjustment of the adjusting foot.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] A through-type eccentric wheel includes an eccentric wheel body comprising a first locking plate and a second locking plate opposite to and connected to the first locking plate. In addition, the eccentric wheel body is provided with a through-channel penetrating its upper and lower ends (the channel openings at both ends of the through-channel are respectively placed on the first locking plate and the second locking plate), a first operating part located on the through-channel path, an installation inlet for inserting the end of the connecting rod with the protrusion, and a locking structure for locking the end of the connecting rod with the protrusion.

[0007] The locking structure is connected to the installation inlet.

[0008] In this technical solution, a mounting cavity for a support adjustment component facing the adjustment foot is provided inside the shelf. This mounting cavity is connected to the upper surface, lower surface, and side surface of the shelf. A through-type eccentric wheel is installed inside the mounting cavity.

[0009] If there are no adjusting feet installed under the shelf, there is a lot of operating space above and below the shelf. The adjusting tool can pass through the upper surface of the shelf and be inserted into the through-channel of the eccentric wheel body from above the shelf, or it can pass through the lower surface of the shelf and be inserted into the through-channel of the eccentric wheel body from below the shelf. In cooperation with the first operating part, the through-type eccentric wheel is rotated, thereby locking the connection between the through-type eccentric wheel and the connecting rod.

[0010] If an adjusting foot is installed below the shelf, the adjusting tool can pass through the upper surface of the shelf and be inserted into the through-channel of the eccentric wheel body from above. It then cooperates with the first operating part to lock the connection between the through-channel eccentric wheel and the connecting rod by rotating the through-channel eccentric wheel. Alternatively, after passing through the through-channel and the lower surface of the shelf, the adjusting tool can also cooperate with the adjusting foot's support adjustment component. Rotating the support adjustment component adjusts the adjusting foot without first removing the shelf above the adjusting foot or drilling additional holes in the shelf (for the adjusting tool to pass through).

[0011] Furthermore, the eccentric wheel body is provided with a boss through which a through channel passes, and the boss is provided with a second operating part located on the through path of the through channel.

[0012] In this technical solution, the adjusting tool can simultaneously cooperate with the second operating part and the first operating part to rotate the through-type eccentric wheel, thereby locking the connection between the through-type eccentric wheel and the connecting rod.

[0013] Furthermore, a reinforcing rib is provided between the boss and the eccentric wheel body to enhance the connection strength between the boss and the eccentric wheel body.

[0014] Furthermore, the locking structure is a slot that extends horizontally circumferentially along the eccentric wheel body.

[0015] Furthermore, a guide portion is provided at the connection between the slot and the installation inlet, so that the end of the connecting rod with the protrusion can be easily inserted into the installation inlet of the through-type eccentric wheel and then enter the slot.

[0016] Furthermore, the inner side of the eccentric wheel body is provided with first anti-slip teeth distributed along the extension direction of the slot, which are used to cooperate in locking the connection between the through-type eccentric wheel and the connecting rod.

[0017] Furthermore, the outer surface of the eccentric wheel body is provided with horizontal anti-slip stripes to prevent it from sliding back horizontally.

[0018] Furthermore, the outer side of the eccentric wheel body is provided with a vertical anti-slip part to prevent longitudinal displacement after the through-type eccentric wheel is installed into the shelf mounting cavity.

[0019] Furthermore, this technical solution also includes a shelf connection assembly for connecting the shelf and the upright, which includes a connecting rod and the aforementioned through-type eccentric wheel;

[0020] In use, the through-type eccentric wheel is installed in the mounting cavity of the shelf. The mounting cavity is directly opposite the support adjustment component of the adjusting foot and is connected to the upper surface, lower surface and side of the shelf. The threaded end of the connecting rod passes through the side of the shelf and is screwed into the upright plate. The protruding end of the connecting rod is inserted into the mounting inlet of the through-type eccentric wheel and enters the locking structure.

[0021] Furthermore, the shelf connection assembly described in this technical solution also includes an expansion plug disposed in the vertical plate, the circumferential surface of which is provided with a second anti-slip tooth, and the inner side of which is provided with thread.

[0022] The threaded end of the connecting rod is connected to the vertical plate via an expansion plug.

[0023] Furthermore, this technical solution also includes an adjustment tool for rotating the adjustment foot and the through-type eccentric wheel. The adjustment tool is provided with an outwardly convex structure for adapting to the support adjustment member of the first operating part and the adjustment foot, and an inwardly concave structure for avoiding the first operating part.

[0024] In this technical solution, the adjusting tool, through its protruding structure, cooperates with the first operating part to rotate the through-type eccentric wheel, thereby locking the connection between the through-type eccentric wheel and the connecting rod. When the through-type eccentric wheel and the connecting rod are locked and the adjusting foot needs to be adjusted, the adjusting tool can continue to pass through the lower surface of the shelf, and through its protruding structure, cooperate with the supporting adjusting member of the adjusting foot to adjust the adjusting foot. The concave structure of the adjusting tool can prevent interference with the through-type eccentric wheel when adjusting the adjusting foot.

[0025] Compared with existing technologies, the principles and advantages of this technical solution are as follows:

[0026] In this technical solution, a mounting cavity for a support adjustment component facing the adjustment foot is provided inside the shelf. This mounting cavity is connected to the upper surface, lower surface, and side surface of the shelf. A through-type eccentric wheel is installed inside the mounting cavity.

[0027] If there are no adjusting feet installed under the shelf, there is a lot of operating space above and below the shelf. The adjusting tool can pass through the upper surface of the shelf and be inserted into the through-channel of the eccentric wheel body from above the shelf, or it can pass through the lower surface of the shelf and be inserted into the through-channel of the eccentric wheel body from below the shelf. In cooperation with the first operating part, the through-type eccentric wheel is rotated, thereby locking the connection between the through-type eccentric wheel and the connecting rod.

[0028] If an adjusting foot is installed below the shelf, the adjusting tool can pass through the upper surface of the shelf and be inserted into the through-channel of the eccentric wheel body from above. It then cooperates with the first operating part to lock the connection between the through-channel eccentric wheel and the connecting rod by rotating the through-channel eccentric wheel. Alternatively, after passing through the through-channel and the lower surface of the shelf, the adjusting tool can also cooperate with the adjusting foot's support adjustment component. Rotating the support adjustment component adjusts the adjusting foot without first removing the shelf above the adjusting foot or drilling additional holes in the shelf (for the adjusting tool to pass through).

[0029] The through-type eccentric wheel described in this technical solution is convenient for both installation and connection with the connecting rod, and also convenient for adjusting the adjusting feet. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the services required in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is one of the perspective views of a through-type eccentric wheel according to one embodiment of the present utility model;

[0032] Figure 2 This is a second perspective view of a through-type eccentric wheel according to Embodiment 1 of this utility model;

[0033] Figure 3 This is a perspective view of a layer plate connecting assembly according to Embodiment 1 of this utility model, showing the connection between the through-type eccentric wheel and the connecting rod.

[0034] Figure 4 This is a perspective view of an adjustment tool according to an embodiment of the present invention;

[0035] Figure 5 An exploded view of the connecting seat and support adjustment component in the foot;

[0036] Figure 6 This is a schematic diagram of a shelf connecting assembly used for connecting a vertical plate and a shelf in one embodiment of the present utility model (adjustable feet are provided below, and the vertical plate is omitted).

[0037] Figure 7 A schematic diagram showing the connection between the locking through-type eccentric wheel and the connecting rod using an adjusting tool when connecting the upright plate and the shelf.

[0038] Figure 8 for Figure 7 The schematic diagram after the shelves is omitted;

[0039] Figure 9 A diagram illustrating the adjustment of the adjusting feet using an adjusting tool when connecting the uprights and shelves;

[0040] Figure 10 for Figure 9 A schematic diagram omitting the shelves.

[0041] Figure label:

[0042] 1-Eccentric wheel body; 2-Through channel; 3-First operating part; 4-Installation entrance; 5-Slot; 6-Boss; 7-Second operating part; 8-Guide part; 9-First anti-slip tooth; 10-Horizontal anti-slip stripe; 11-Vertical anti-slip part; 12-Connecting rod; 13-Adjusting tool; 14-Connecting seat; 15-Supporting adjustment component; 16-Outward convex structure; 17-Inward concave structure; 18-First locking plate; 19-Second locking plate; 20-Reinforcing rib. Detailed Implementation

[0043] The present invention will be further described below with reference to specific embodiments:

[0044] Example 1

[0045] like Figures 1 to 2 As shown, the through-type eccentric wheel described in this embodiment includes an eccentric wheel body 1. The eccentric wheel body 1 includes a first locking plate 18 and a second locking plate 19 that is opposite to and connected to the first locking plate 18. In addition, the eccentric wheel body 1 is provided with a through channel 2 that passes through its upper and lower ends (the channel openings at both ends of the through channel 2 are respectively placed on the first locking plate 18 and the second locking plate 19), a first operating part 3 located on the through path of the through channel 2 (specifically placed on the second locking plate 19), an installation inlet 4 for inserting the end of the connecting rod 12 with the protrusion, and a slot 5 for locking the end of the connecting rod 12 with the protrusion; the slot 5 is connected to the installation inlet 4.

[0046] Specifically, in this embodiment, the first locking plate 18 of the eccentric wheel body 1 is provided with a boss 6 through which the through channel 2 passes. The boss 6 is provided with a second operating part 7 located on the through path of the through channel 2. In addition, a reinforcing rib 20 is provided between the boss 6 and the eccentric wheel body 1 to strengthen the connection strength between the boss 6 and the eccentric wheel body 1.

[0047] Specifically, in this embodiment, the slot 5 extends horizontally circumferentially along the eccentric wheel body 1, and a guide part 8 is provided at the connection between the slot 5 and the installation inlet 4, so that the end of the connecting rod 12 with the protrusion can be easily inserted into the slot 5 after being inserted into the installation inlet 4 of the through eccentric wheel.

[0048] Specifically, in this embodiment, the inner side of the eccentric wheel body 1 is provided with first anti-slip teeth 9 distributed along the extension direction of the slot 5, which are used to cooperate in locking the connection between the through-type eccentric wheel and the connecting rod 12. The outer side of the eccentric wheel body 1 is provided with horizontal anti-slip stripes 10 to prevent it from sliding back horizontally. The outer side of the eccentric wheel body 1 is provided with vertical anti-slip parts 11 to prevent longitudinal displacement of the through-type eccentric wheel after it is installed in the mounting cavity of the shelf B.

[0049] like Figure 3 As shown, this embodiment also includes a shelf connection assembly for connecting shelf B and vertical plate A, which includes a connecting rod 12 and the aforementioned through-type eccentric wheel.

[0050] like Figure 4 and Figure 5 As shown, this embodiment also includes an adjustment tool for rotating the adjustment foot and the aforementioned through-type eccentric wheel. Specifically, the adjustment tool 13 is provided with an outwardly protruding structure 16 for adapting to the support adjustment member 15 of the first operating part 3 and the adjustment foot (including the connecting seat 14 connected to the upright plate A and the support adjustment member 15 threadedly connected to the connecting seat 14), and an inwardly concave structure 17 for avoiding the first operating part 3.

[0051] The working principle of this embodiment is as follows:

[0052] The through-type eccentric wheel is installed in the mounting cavity of the shelf B. The mounting cavity is directly opposite the support adjustment member 15 of the adjusting foot and is connected to the upper surface, lower surface and side surface of the shelf B. The threaded end of the connecting rod 12 passes through the side of the shelf B and is screwed into the vertical plate A. The protruding end of the connecting rod 12 is inserted into the mounting inlet 4 of the through-type eccentric wheel and enters the slot 5.

[0053] If no adjusting feet are installed below shelf B, there is ample operating space above and below shelf B. The adjusting tool 13 can pass through the upper surface of shelf B and be inserted into the through-channel 2 of the eccentric wheel body 1 from above shelf B, or it can pass through the lower surface of shelf B and be inserted into the through-channel 2 of the eccentric wheel body 1 from below shelf B. Through the cooperation of the protruding structure 16 with the first operating part 3 and the second operating part 7, the through-type eccentric wheel is rotated, thereby locking the connection between the through-type eccentric wheel and the connecting rod 12.

[0054] If adjustable feet are installed below shelf B (e.g.) Figure 6 As shown), the adjusting tool 13 can pass through the upper surface of the shelf B and be inserted into the through-channel 2 of the eccentric wheel body 1 from above the shelf B. Through the outward protruding structure 16, it cooperates with the first operating part 3 and the second operating part 7 to rotate the through-type eccentric wheel, locking the connection between the through-type eccentric wheel and the connecting rod 12. Figure 7 and Figure 8As shown. In addition, after the adjusting tool 13 passes through the through-channel 2 and the lower surface of the shelf B, it can also cooperate with the support adjusting member 15 of the adjusting foot through its protruding structure 16. Rotating the support adjusting member 15 of the adjusting foot allows for adjustment of the adjusting foot, as shown. Figure 9 and Figure 10 As shown (during the adjustment process, the concave structure 17 of the adjustment tool 13 can avoid interference with the through-type eccentric wheel when adjusting the adjustment foot), it is not necessary to first remove the shelf B above the adjustment foot, nor is it necessary to make another hole in the shelf B (for the adjustment tool 13 to pass through).

[0055] In addition, by adjusting the tool 13 simultaneously engaging with the second operating part 7 and the first operating part 3, even if the first locking piece 18 is thin, it can ensure that there is sufficient contact area between the adjusting tool 13 and the eccentric wheel body 1, thereby facilitating the rotation of the through-type eccentric wheel; moreover, in the scheme of increasing the contact area, setting the boss 6 can save more material than increasing the thickness of the first locking piece 18.

[0056] Example 2

[0057] Compared with Embodiment 1, this embodiment further includes an expansion plug disposed within the vertical plate A. The circumferential surface of the expansion plug is provided with a third anti-slip tooth (for increasing friction with the vertical plate A), and the inner side of the expansion plug is provided with threads. The threaded end of the connecting rod 12 is connected to the vertical plate A through the expansion plug.

[0058] Example 3

[0059] Compared with Embodiment 1, in this embodiment, the first operating part 3 is placed on the first locking piece 18.

[0060] Example 4

[0061] Compared with Embodiment 1, in this embodiment, the first operating part 3 is placed on the first locking piece 18 and the second locking piece 19.

[0062] The above-described embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all changes made in accordance with the shape and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A through-type eccentric wheel, characterized in that, It includes an eccentric wheel body, which has a through channel extending through its upper and lower ends, a first operating part located on the through path of the through channel, an installation inlet for inserting the end of the connecting rod with the protrusion, and a locking structure for locking the end of the connecting rod with the protrusion. The locking structure is connected to the installation inlet.

2. The through-type eccentric wheel according to claim 1, characterized in that, The eccentric wheel body is provided with a boss through which a through channel passes, and the boss is provided with a second operating part located on the through path of the through channel.

3. A through-type eccentric wheel according to claim 2, characterized in that, A reinforcing rib is provided between the boss and the eccentric wheel body.

4. A through-type eccentric wheel according to claim 1, characterized in that, The locking structure is a slot that extends horizontally circumferentially along the eccentric wheel body.

5. A through-type eccentric wheel according to claim 4, characterized in that, A guide is provided at the connection between the card slot and the installation inlet.

6. A through-type eccentric wheel according to claim 4, characterized in that, The inner side of the eccentric wheel body is provided with a first anti-slip tooth distributed along the extension direction of the slot.

7. A through-type eccentric wheel according to claim 1, characterized in that, The outer surface of the eccentric wheel body is provided with vertical anti-slip parts and horizontal anti-slip stripes to prevent it from sliding back horizontally.

8. A shelf connection assembly for connecting a shelf and a vertical panel, characterized in that, Includes a connecting rod and a through-type eccentric wheel as described in any one of claims 1-7; In use, the through-type eccentric wheel is installed in the mounting cavity of the shelf. The mounting cavity is directly opposite the support adjustment component of the adjusting foot and is connected to the upper surface, lower surface and side of the shelf. The threaded end of the connecting rod passes through the side of the shelf and is screwed into the upright plate. The protruding end of the connecting rod is inserted into the mounting inlet of the through-type eccentric wheel and enters the locking structure.

9. A layer board connection assembly according to claim 8, characterized in that, It also includes an expansion plug located inside the upright plate, the circumferential surface of which is provided with a second anti-slip tooth, and the inner side of which is provided with thread. The threaded end of the connecting rod is connected to the vertical plate via an expansion plug.

10. An adjustment tool, characterized in that, For rotating the adjusting foot and the through-type eccentric wheel according to any one of claims 1-7, the adjusting tool is provided with an outwardly convex structure for adapting to the support adjusting member of the first operating part and the adjusting foot, and an inwardly concave structure for avoiding the first operating part.