A convenient sheet metal connector

CN224634837UActive Publication Date: 2026-08-14FOSHAN HONGYUNDA HARDWARE PROD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

[0003]目前,现有技术中广泛采用的三合一、四合一连接件,传统三合一连接件通常由偏心轮、连接杆和预埋件组成,四合一连接件在此基础上增加配件数量,安装时需在板材上精准打孔、预埋预埋件,并经过多道分步组装工序,对安装工人的技术要求较高,且安装流程繁琐耗时

Benefits of technology

[0016]本实用新型,通过设置一体成型的连接件,且连接孔与安装孔同步成型,相对于现有技术中传统三合一、四合一配件需精准打孔、预埋复杂预埋件及分步组装的繁琐流程,降低了安装难度,提升了安装效率。

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Abstract

This utility model provides a convenient plate connector, including a connector and a mounting part. The connector has a connecting hole on its upper surface, extending through the upper surface to the internal cavity. The connector also has an insertion hole on its upper surface, extending through the cavity. A protective cover is installed on the cavity. The connector connects to a support plate through the connecting hole. The mounting part is fixedly connected to one side of the upper surface of the connector. An installation hole is provided on the side of the mounting part, extending through the mounting part to the other side. The connector connects to a cabinet through the mounting part. This utility model, by using an integrally formed connector with the connecting hole and installation hole formed simultaneously, reduces installation difficulty and improves installation efficiency compared to the cumbersome process of precise drilling, pre-embedding complex components, and step-by-step assembly required by traditional three-in-one and four-in-one accessories in existing technologies.
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Description

Technical Field

[0001] This utility model relates to the technical field of cabinet support plate connectors, specifically a convenient plate connector. Background Technology

[0002] In the fields of furniture manufacturing and interior space design, cabinets, as important storage and decorative elements, are widely used in homes, offices, and commercial spaces. The cabinet frame, a key component inside the cabinet used to support items and divide space, directly affects the cabinet's performance and lifespan through its stable connection to the cabinet frame. Connectors, as core components ensuring a reliable connection between the frame and the cabinet, play a decisive role in the cabinet's stability, installation efficiency, and ease of maintenance through their structural design and installation methods.

[0003] Currently, the widely used three-in-one and four-in-one connectors in existing technologies typically consist of an eccentric wheel, a connecting rod, and embedded parts. Four-in-one connectors increase the number of components, requiring precise drilling and embedding of the embedded parts in the board material during installation, along with multiple step-by-step assembly processes. This demands a high level of skill from the installers and is a cumbersome and time-consuming installation process. Furthermore, after repeated disassembly and reassembly, these modular connectors are prone to loosening and stripping between the embedded parts and the board material, leading to a significant decrease in connection strength. This affects the stability of the cabinet structure, making it difficult to meet the needs of repeated disassembly and reassembly, and increasing maintenance costs and usage risks. Utility Model Content

[0004] The purpose of this utility model is to provide a convenient sheet metal connector to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A convenient sheet metal connector, comprising:

[0007] A connector has a connecting hole on its upper end face, which penetrates through the upper end face of the connector to reach the internal cavity of the connector. The upper end face of the connector also has an insertion hole, which penetrates through the upper end face of the connector to reach the cavity. A protective cover is installed on the cavity. The connector is connected to the support plate through the connecting hole.

[0008] The mounting part is fixedly connected to one side of the upper end face of the connector. The mounting part has a mounting hole on its side, which passes through the mounting part to the other side. The connector is connected to the cabinet through the mounting part.

[0009] Preferably, the connector and the mounting part are integrally formed, and the connecting hole and the mounting hole are formed synchronously with the integral structure of the connector and the mounting part.

[0010] Preferably, the lower end face of the bearing plate is provided with a first bolt hole, a first expansion sleeve is inserted into the first bolt hole, and the first expansion sleeve cooperates with the first expansion screw to fix the connector to the lower side of the bearing plate.

[0011] Preferably, a second bolt hole is provided on the side panel of the cabinet, and a second expansion bolt sleeve is inserted into the second bolt hole. The second expansion bolt sleeve cooperates with the second expansion screw to fix the connector to the side panel.

[0012] Preferably, after the second expansion screw is screwed into the second expansion sleeve, half of the front end of the second expansion screw is still outside the side panel, for insertion into the support plate connection.

[0013] Preferably, after the first expansion screw is screwed into the first expansion sleeve, the front end of the first expansion screw is located in the cavity of the connector, which facilitates the installation of the protective cover.

[0014] Preferably, the connectors installed on both sides of the bearing plate are symmetrically positioned.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model, by setting an integrally formed connector with the connection hole and the mounting hole formed simultaneously, reduces the installation difficulty and improves the installation efficiency compared to the cumbersome process of precise drilling, pre-embedding complex embedded parts, and step-by-step assembly required by traditional three-in-one and four-in-one accessories in the prior art.

[0017] This utility model uses a first expansion sleeve and a first expansion screw to fix the support plate and the connector, and a second expansion sleeve and a second expansion screw to fix the connector and the cabinet. It uses the friction generated by the expansion screw to achieve a firm anchoring. At the same time, the front end of the second expansion screw is inserted into the opening of the support plate to form a connection structure. Installation can be completed without additional accessories, simplifying the connection steps while ensuring the connection strength.

[0018] This utility model, by setting a protective cover in the cavity of the connector, and with the lower end of the protective cover having an interference fit with the insertion hole, conceals the exposed screw structure, improves the aesthetics of the cabinet, and prevents dust and debris from entering the connection gap, thus playing a role in dust prevention and oxidation prevention and extending the service life of the connecting parts.

[0019] This utility model, by symmetrically installing connectors on both sides of the support plate, and setting two connectors on one side, makes the force on the support plate more even, enhances the load-bearing capacity and stability of the support plate, and ensures the reliability of the cabinet structure.

[0020] This utility model features a one-piece molded connector that maintains a secure connection even after multiple disassemblies. Compared to traditional modular connectors in the prior art, which are prone to loosening after disassembly, this design improves the reusability of the connector and reduces costs. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model;

[0022] Figure 2 A three-dimensional schematic diagram of the protective cover of this utility model when opened;

[0023] Figure 3 This is a three-dimensional schematic diagram of the connection between the connector and the bearing plate of this utility model;

[0024] Figure 4 This is a three-dimensional schematic diagram of the support plate and cabinet body of this utility model;

[0025] Figure 5 This is a three-dimensional schematic diagram of the connection component of this utility model, showing the installation of the support plate and the cabinet.

[0026] Figure 6 This is a sectional view of the cabinet and support plate of this utility model.

[0027] In the diagram: 1. Connector; 101. Connecting hole; 102. Insertion hole; 2. Mounting part; 201. Mounting hole; 3. Protective cover; 301. Insert rod; 4. Support plate; 401. First bolt hole; 5. Side cabinet panel; 501. Reserved hole; 502. Second bolt hole; 6. Rear cabinet panel; 7. First expansion sleeve; 8. First expansion screw; 9. First nut; 10. Second expansion sleeve; 11. Second expansion screw; 12. Second nut; Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1:

[0030] Please see Figures 1 to 6 This utility model provides a technical solution:

[0031] A convenient sheet metal connector for quickly connecting a support plate to a cabinet body, comprising:

[0032] Connector 1, the upper end face of connector 1 is provided with a connecting hole 101, the connecting hole 101 penetrates the upper end face of connector 1 to reach the internal cavity of connector 1, the upper end face of connector 1 is also provided with a plug hole 102, the plug hole 102 penetrates the upper end face of connector 1 to reach the cavity, a protective cover 3 is installed on the cavity, connector 1 is connected to support plate 4 through connecting hole 101;

[0033] Mounting part 2 is fixedly connected to one side of the upper end face of connector 1. Mounting part 2 has a mounting hole 201 on its side, which passes through the mounting part 2 to the other side. Connector 1 is connected to cabinet through mounting part 2.

[0034] Specifically, the connector 1 and the mounting part 2 are integrally formed, and the connecting hole 101 and the mounting hole 201 are formed synchronously with the integral structure of the connector 1 and the mounting part 2.

[0035] In this embodiment, the connector 1 is integrally formed, eliminating the need for precise pre-drilling of holes in the plate, embedding of complex pre-embedded parts, and step-by-step assembly, as required by traditional three-in-one or four-in-one accessories. This simplifies the installation process of traditional connectors. Furthermore, modular connectors become less secure after disassembly, affecting their reuse. In contrast, the integrally formed connector 1 is lower in cost and remains secure even after multiple disassemblies and reuses.

[0036] Specifically, a first bolt hole 401 is provided on the lower end face of the bearing plate 4. A first expansion sleeve 7 is inserted into the first bolt hole 401. The first expansion sleeve 7 cooperates with the first expansion screw 8 to fix the connector 1 to the lower side of the bearing plate 4.

[0037] In this embodiment, by inserting the first expansion sleeve 7 into the first bolt hole 401 on the lower end face of the support plate 4, and placing the support plate 4 on the connector 1, the first expansion screw 8 is then screwed into the sleeve. This quickly fixes the upper end face of the connector 1 to the lower side of the support plate 4 without the need for complex pre-embedded parts or multiple steps, simplifying the connection process. After the screw is fixed, the washer and nut are screwed in. Then, the protective cover 3 can be fastened onto the connector 1. The lower end of the protective cover 3 has an interference fit with the insertion hole 102 on the connector 1 to fix the protective cover 3. This not only covers the exposed screw structure and improves the cleanliness of the cabinet appearance, but also prevents dust and debris from entering the connection gap. It also provides dustproof and anti-oxidation protection for the internal expansion sleeve and screw, extending the service life of the connecting parts, and avoiding accidental scratches caused by exposed screws.

[0038] Specifically, a second bolt hole 502 is provided on the side panel 5 of the cabinet body. A second expansion sleeve 10 is inserted into the second bolt hole 502. The second expansion sleeve 10 cooperates with the second expansion screw 11 to fix the connector 1 on the side panel 5.

[0039] In this embodiment, the connector 1 and the mounting part 2 are integrally formed, and there is no need for complicated pre-made slots during installation. A second bolt hole 502 is opened on the side cabinet panel 5 of the cabinet, and a second expansion screw sleeve 10 is inserted. The second expansion screw 11 is used to open and lock the plate, thereby enhancing the firmness of the plate. The connector 1 is then firmly installed on the side cabinet panel 5 through the mounting hole 201.

[0040] The second expansion screw 11 is longer than the first expansion screw 8. After the second expansion screw 11 is screwed into the second expansion sleeve 10, the front end of the second expansion screw 11 extends out from the second bolt hole 502 of the side panel 5 and inserts into the pre-set opening on the side of the support plate 4 (e.g., Figure 6 The second expansion screws 11 on both sides of the support plate 4 cooperate with the openings in the support plate 4 to form a connection structure. The support plate 4 can be placed on the connector 1 without additional accessories, which simplifies the connection steps and makes disassembly and assembly convenient.

[0041] Specifically, an expansion bolt is a common type of independent fastener. During installation, the entire assembly is inserted into a pre-drilled hole, and tightening the bolt causes the expansion sleeve to expand, thereby generating a huge frictional force on the hole wall of the substrate (such as concrete or brick wall) to achieve anchoring.

[0042] Specifically, after the second expansion screw 11 is screwed into the second expansion sleeve 10, half of the front end of the second expansion screw 11 is still located outside the side cabinet plate 5, which is used to insert the support plate 4 for connection.

[0043] Specifically, after the first expansion screw 8 is screwed into the first expansion sleeve 7, the front end of the first expansion screw 8 is located in the cavity of the connector 1, which facilitates the installation of the protective cover 3.

[0044] Specifically, the connectors 1 installed on both sides of the bearing plate 4 are symmetrically positioned.

[0045] Example 2:

[0046] This utility model provides a technical solution that is basically the same as that of Embodiment 1, but with slight differences:

[0047] For cabinets with pre-drilled holes 501 (such as...) Figure 5 Connector 1 can also be adapted. Insert one side of the mounting part 2 of connector 1 into the reserved hole 501 of the cabinet side panel 5. It can be fixed by passing bolts through the mounting hole 201 and the reserved hole 501. This allows connector 1 to be adapted to cabinets without reserved holes 501 for on-site drilling and installation, as well as to directly match cabinets with reserved holes 501, which has high flexibility.

[0048] In use, holes are first drilled on both sides of the support plate 4 and at corresponding positions on the side cabinet panel 5, and expansion screw sleeves are installed. Then, the mounting part 2 of the connector 1 is fixed to the side cabinet panel 5 by the second expansion screw 11. The long front end of the second expansion screw 11 is inserted into the opening on the side of the support plate 4 to achieve initial positioning. Next, the first expansion screw 8 is screwed into the first expansion screw sleeve 7 under the support plate 4 to complete the fastening of the support plate 4 and the connector 1. The protective cover 3 is then fastened to hide the screw structure. The above steps are repeated to install one connector 1 on the other side of the same side of the support plate 4 and two symmetrical connector 1s on the other side to ensure that the support plate 4 is evenly stressed. Finally, the rear cabinet panel 6 is installed on the back of the side cabinet panel 5 to complete the cabinet assembly.

[0049] All other parts of this utility model not described herein are the same as existing technologies, or are known technologies, or can be implemented using existing technologies, and will not be described in detail here.

[0050] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable board connector, characterized by, include: A connector (1) has a connecting hole (101) on its upper end face. The connecting hole (101) penetrates the upper end face of the connector (1) and reaches the internal cavity of the connector (1). The upper end face of the connector (1) is also provided with an insertion hole (102). The insertion hole (102) penetrates the upper end face of the connector (1) and reaches the cavity. A protective cover (3) is installed on the cavity. The connector (1) is connected to the support plate (4) through the connecting hole (101). The mounting part (2) is fixedly connected to one side of the upper end face of the connector (1). The mounting part (2) has a mounting hole (201) on its side. The mounting hole (201) passes through the mounting part (2) to reach the other side. The connector (1) is connected to the cabinet through the mounting part (2).

2. A portable board connecting piece according to claim 1, characterized in that: The connector (1) and the mounting part (2) are integrally formed, and the connecting hole (101) and the mounting hole (201) are formed synchronously with the integral structure of the connector (1) and the mounting part (2).

3. The portable board connecting piece according to claim 1, characterized in that: The lower end face of the bearing plate (4) is provided with a first bolt hole (401), and a first expansion sleeve (7) is inserted into the first bolt hole (401). The first expansion sleeve (7) cooperates with the first expansion screw (8) to fix the connector (1) to the lower side of the bearing plate (4).

4. The portable board connecting piece according to claim 1, characterized in that: The side panel (5) of the cabinet is provided with a second bolt hole (502). A second expansion sleeve (10) is inserted into the second bolt hole (502). The second expansion sleeve (10) cooperates with the second expansion screw (11) to fix the connector (1) on the side panel (5).

5. A portable board connector according to claim 4, wherein: After the second expansion screw (11) is screwed into the second expansion sleeve (10), half of the front end of the second expansion screw (11) is still located outside the side cabinet panel (5) for insertion into the support plate (4) for connection.

6. The portable board connecting piece according to claim 3, characterized in that: After the first expansion screw (8) is screwed into the first expansion sleeve (7), the front end of the first expansion screw (8) is located in the cavity of the connector (1), which makes it easy to install the protective cover (3).

7. A convenient sheet metal connector according to claim 1, characterized in that: The connectors (1) installed on both sides of the bearing plate (4) are symmetrically positioned.