A concealed connecting structure and combined cabinet

By using a concealed connection structure and locking components for the mounting cavity and operating port in conjunction with a cover, the problems of exposed bolts and inconvenient installation of the modular cabinet are solved, improving both aesthetics and ease of installation.

CN224584382UActive Publication Date: 2026-08-04BERLEE FURNITURE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BERLEE FURNITURE CO LTD
Filing Date
2025-05-19
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing bolted connection structure of the modular cabinet results in exposed bolts, which affects the overall aesthetics and makes installation inconvenient.

Method used

The design employs a concealed connection structure, which uses a locking mechanism with an installation cavity and operating port inside the connecting rod, along with a cover, to achieve concealed and fixed connection between the connecting rod and the side frame.

Benefits of technology

This solved the problem of exposed bolts, improved the aesthetics of the modular cabinet, simplified the installation process, and enhanced the strength and convenience of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of hidden connection structure, comprising: at least two side frames, installation hole is equipped on the side frame;Multiple connecting rods, installation cavity is equipped in the connecting rod, the end of the connecting rod is equipped with positioning hole, the connecting rod's stem is equipped with operating port, the installation cavity is connected with the operating port and the positioning hole;Multiple locking members are located in the installation cavity;The locking member is installed on the side frame after passing through the positioning hole and the installation hole, to make the connecting rod connect with the side frame;Cover, it is detachably arranged in the operating port.Compared with prior art, the connecting rod of the present application is positioned and aligned with the side frame, the user operates the locking member from the operating port, so that the connecting rod is connected and fixed with the side frame, and finally the cover is arranged at the operating port to cover the installation cavity and the locking member, solving the technical problem of exposed bolts in the combination cabinet of the prior art.
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Description

Technical Field

[0001] This utility model belongs to the technical field of cabinets, specifically relating to a concealed connection structure and a combination cabinet. Background Technology

[0002] To facilitate transportation, modular cabinets are designed as separate components such as frames, connecting rods, and panels, which users assemble themselves after purchasing. These separate components are typically connected using bolts, which are exposed on the cabinet surface, affecting the overall appearance. While the applicant's previous application, CN202120021874.0, described a quick-connect structure and simplified cabinet, also achieved the effect of concealing bolts, its connection installation process was rather cumbersome. Therefore, this application aims to optimize this approach. Utility Model Content

[0003] To overcome the above-mentioned technical defects, this utility model provides a concealed connection structure and a combination cabinet, which can solve the technical problems of exposed bolts and inconvenient installation in the existing combination cabinet.

[0004] This utility model is implemented according to the following technical solution:

[0005] This utility model provides a concealed connection structure, which includes:

[0006] At least two side frames, each side frame having mounting holes;

[0007] Multiple connecting rods, each connecting rod having an installation cavity, a positioning hole at its end, and an operating port on its body; the installation cavity is connected to the operating port and the positioning hole.

[0008] Multiple locking elements are located within the mounting cavity; the locking elements pass through the positioning hole and the mounting hole and are then mounted on the side frame to connect the connecting rod to the side frame.

[0009] A cover is detachably mounted on the operating port.

[0010] Compared with the prior art, after the connecting rod and the side frame are aligned, the user operates the locking device through the operation port to connect and fix the connecting rod to the side frame. Finally, the cover is set at the operation port to cover the mounting cavity and the locking device, which solves the technical problems of exposed bolts and inconvenient installation of the combination cabinet in the prior art.

[0011] In one embodiment, the locking element includes a bolt, the bolt head of which is located within the mounting cavity;

[0012] The mounting hole is a threaded hole, which is matched with the bolt.

[0013] In one embodiment, the locking element includes a bolt, the bolt head of which is located within the mounting cavity;

[0014] The side frame is provided with a receiving cavity, which is connected to the mounting hole;

[0015] The bolt passes through the positioning hole and the mounting hole and is then tightened and fixed with the nut located in the receiving cavity.

[0016] In one embodiment, the side frame has openings at both the top and bottom, and the openings are connected to the receiving cavity; the openings are provided with removable covers.

[0017] In one embodiment, the bottom of the side frame is threadedly connected to an adjusting foot.

[0018] In one embodiment, the length direction of the operating port is the same as the length direction of the connecting rod.

[0019] In one embodiment, the end of the connecting rod is provided with a contoured portion, which contacts the side frame.

[0020] This utility model provides a modular cabinet, which includes the concealed connection structure as described above, and also includes a panel, which is connected to the side frame and the connecting rod to form a storage space.

[0021] In one embodiment, the cabinet further includes at least one drawer located within the storage space.

[0022] In one embodiment, the operating port is positioned facing the storage space. Attached Figure Description

[0023] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0024] Figure 1 This is an exploded view of the concealed connection structure of this utility model;

[0025] Figure 2 This is an assembly drawing of the concealed connection structure of this utility model;

[0026] Figure 3 This is a partial cross-sectional view of the concealed connection structure of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 10 Side frame, 110 Mounting hole, 120 Cover, 130 Adjustable foot, 20 Connecting rod, 210 Mounting cavity, 220 Positioning hole, 230 Operating port, 30 Locking piece, 40 Sealing cover, 50 Hex key. Detailed Implementation

[0029] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0030] To better illustrate this utility model, a further detailed description of this utility model is provided below with reference to the accompanying drawings.

[0031] It should be understood that the described embodiments are merely some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of the embodiments of this application.

[0032] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the embodiments of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0033] In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims. In the description of this application, it should be understood that the terms "first," "second," "third," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0034] Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0035] Example 1

[0036] Combination Figures 1 to 3As shown, this embodiment provides a concealed connection structure, which includes: at least two side frames 10, each side frame 10 having a mounting hole 110; multiple connecting rods 20, each connecting rod 20 having a mounting cavity 210, each connecting rod 20 having a positioning hole 220 at its end, and each connecting rod 20 having an operating port 230 on its body, the mounting cavity 210 communicating with the operating port 230 and the positioning hole 220; multiple locking members 30 located within the mounting cavity 210; the locking members 30 passing through the positioning hole 220 and the mounting hole 110 and then being mounted on the side frame 10 to connect the connecting rod 20 to the side frame 10; and a cover 40 detachably disposed in the operating port 230.

[0037] Specifically, in this embodiment, the side frame 10 and the connecting rod 20 are detachably connected. During transportation, the side frame 10 and the connecting rod 20 can be disassembled to save transportation space. The side frame 10, which has an overall frame structure, can also reduce the number of connecting parts, making it convenient for users to assemble themselves and achieving the effect of rapid assembly. At the same time, it can reduce the number of connecting parts and reduce production costs.

[0038] During installation, the user first aligns the connecting rod 20 with the side frame 10. It should be noted that this alignment refers to the alignment of the positioning hole 220 with the mounting hole 110. The locking member 30 is then inserted into the mounting cavity 210 through the operating port 230. The user can operate the locking member 30 from the operating port 230, allowing it to pass through the positioning hole 220 and the mounting hole 110 and be installed on the side frame 10, thus connecting the connecting rod 20 to the side frame 10. After the locking member 30 is fixed, the cover 40 is installed at the operating port 230 to cover the mounting cavity 210 and the locking member 30, preventing the locking member 30 from being exposed and improving the aesthetics of the cabinet.

[0039] Compared with the prior art, after the connecting rod 20 and the side frame 10 are aligned, the user operates the locking component 30 through the operation port 230 to connect and fix the connecting rod 20 to the side frame 10. Finally, the cover 40 is placed at the operation port 230 to cover the mounting cavity 210 and the locking component 30, solving the technical problem of exposed bolts in the existing modular cabinet. In addition, as consumers have increasingly higher requirements for product aesthetics, the concealed connection structure of this application can improve the overall aesthetics of the product. After the entire frame is installed, there are no visible traces on the surface, and the structure is more robust; at the same time, installation is simpler and faster.

[0040] In this embodiment, the locking member 30 includes a bolt, the bolt head of which is located within the mounting cavity 210; the mounting hole 110 is a threaded hole that matches the bolt. In this embodiment, the bolt can be inserted from the operating port 230 into the mounting cavity 210 and through the positioning hole 220, and then tightened to connect the connecting rod 20 to the side frame 10.

[0041] As a variation of the technical solution, in other embodiments, the locking member 30 includes a bolt, the bolt head of which is located within the mounting cavity 210; the side frame 10 has a receiving cavity that communicates with the mounting hole 110; the bolt passes through the positioning hole 220 and the mounting hole 110 and is then tightened to a nut located within the receiving cavity. In this embodiment, the bolt can be inserted from the operating port 230 into the mounting cavity 210 and through the positioning hole 220, and tightened with the nut within the receiving cavity, thereby connecting the connecting rod 20 to the side frame 10.

[0042] The bolts can be tightened or loosened using a hexagonal key 50. The width of the operating port 230 also matches that of the hexagonal key 50, providing sufficient width for easy operation.

[0043] Furthermore, the side frame 10 has openings at both its top and bottom, which communicate with the receiving cavity; a removable cover 120 is provided at each opening. During installation, the user inserts a nut into the receiving cavity through the opening and temporarily aligns and presses it into the mounting hole 110. After tightening with the bolt, the cover 120 is then installed at the opening to cover the nut and the receiving cavity.

[0044] In this embodiment, the bottom of the side frame 10 is threadedly connected to the adjusting foot 130 so as to adjust the overall height of the combination cabinet using the adjusting foot 130.

[0045] In this embodiment, the length direction of the operating port 230 is the same as the length direction of the connecting rod 20, so that there is enough space to operate the locking member 30.

[0046] Furthermore, the cover 40 can be connected to the connecting rod 20 by a snap-fit ​​connection, or by a magnetic connection, or by other technical means in the art; this application does not limit the above connection methods, and the purpose of the cover 40 is to cover the mounting cavity 210 and the locking member 30.

[0047] In this embodiment, the end of the connecting rod 20 is provided with a contouring part, which contacts the side frame 10. The shape of the contouring part is designed to match the surface of the horizontal bar and the vertical bar of the side frame 10 so as to better fit the side frame 10.

[0048] Example 2

[0049] This embodiment provides a modular cabinet, which includes the concealed connection structure described above, and a panel. The panel is connected to the side frame 10 and the connecting rod 20 to form a storage space. The concealed connection structure and the panel in this embodiment combine to form a modular cabinet, making it convenient for users to place items into the storage space.

[0050] In this embodiment, the cabinet also includes at least one drawer located within the storage space.

[0051] In other embodiments, drawers and sections of the panel may be omitted in order to function as a shelf.

[0052] In this embodiment, the operating port 230 is oriented toward the storage space in order to better conceal the cover 40, making the overall appearance of the cabinet more aesthetically pleasing.

[0053] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A concealed connection structure, characterized in that, include: At least two side frames, each side frame having mounting holes; Multiple connecting rods, each connecting rod having an installation cavity, a positioning hole at its end, and an operating port on its body; the installation cavity is connected to the operating port and the positioning hole. Multiple locking elements are located within the mounting cavity; the locking elements pass through the positioning hole and the mounting hole and are then mounted on the side frame to connect the connecting rod to the side frame. A cover is detachably mounted on the operating port.

2. The concealed connection structure according to claim 1, characterized in that: The locking element includes a bolt, the bolt head of which is located within the mounting cavity; The mounting hole is a threaded hole, which is matched with the bolt.

3. The concealed connection structure according to claim 1, characterized in that: The locking element includes a bolt, the bolt head of which is located within the mounting cavity; The side frame is provided with a receiving cavity, which is connected to the mounting hole; The bolt passes through the positioning hole and the mounting hole and is then tightened and fixed with the nut located in the receiving cavity.

4. The concealed connection structure according to claim 3, characterized in that: The side frame has openings at the top and bottom, which are connected to the receiving cavity; the openings are provided with removable covers.

5. The concealed connection structure according to claim 1, characterized in that: The bottom of the side frame is threadedly connected to the adjusting foot.

6. The concealed connection structure according to claim 1, characterized in that: The length direction of the operating port is the same as the length direction of the connecting rod.

7. The concealed connection structure according to claim 1, characterized in that: The end of the connecting rod is provided with a contoured part, which contacts the side frame.

8. A modular cabinet, characterized in that, The system includes the concealed connection structure as described in any one of claims 1-7, and further includes a plate body, which is connected to the side frame and the connecting rod to form a storage space.

9. The modular cabinet according to claim 8, characterized in that: The cabinet also includes at least one drawer located within the storage space.

10. The modular cabinet according to claim 8, characterized in that: The operating port is positioned facing the storage space.