A plate furniture connecting piece can be quickly installed and is invisible and easy to disassemble
Patent Information
- Application Number
- CN202521775731.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-08-20
AI Technical Summary
[0003]榫卯连接对加工精度要求极高,且安装和拆卸都较为繁琐,不利于大规模工业化生产和后期维护
[0014] This invention features a connecting post, an expansion tube, and a limiting ball. The connecting tube and the disassembly tube of the expansion tube form an 8-shaped structure. During installation, the expansion tube is placed into the mounting hole of the plate. By pressing the threaded post of the connecting post, the connecting pusher limit ball compresses the limiting plate of the connecting tube. The limiting plate expands outward and fits tightly against the plate, achieving a stable connection. During disassembly, pushing one of the connected plates causes the connecting post to enter the disassembly tube, disengaging from the reverse thread limit, allowing for easy disassembly.
Smart Images

Figure CN224742697U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of furniture manufacturing technology, and in particular to a panel furniture connector that can be quickly installed, is invisible, and is easy to disassemble. Background Technology
[0002] In the furniture production and assembly process, the connection between the panels is a crucial step, directly affecting the structural stability and lifespan of the furniture. Currently, common furniture panel connection methods include mortise and tenon joints, screw connections, and three-in-one connectors.
[0003] Mortise and tenon joints require extremely high machining precision, and their installation and disassembly are quite cumbersome, making them unsuitable for large-scale industrial production and subsequent maintenance. While screw connections are relatively simple to operate, repeated disassembly can easily loosen the screw holes, affecting the connection strength, and exposed screws detract from the furniture's aesthetics. Three-in-one connectors solve these problems to some extent, but existing three-in-one connectors have exposed holes, affecting aesthetics. There are also connectors on the market where the holes are not exposed after installation, but these are difficult to disassemble, and some cannot be disassembled at all.
[0004] Therefore, there is a need for a panel furniture connector that can be quickly installed, concealed, and easily disassembled to solve the problems of exposed inter-panel connection holes in existing technologies, which are unsightly, not concealed, inconvenient to install and disassemble, and even non-removable and easily damaged. Utility Model Content
[0005] This utility model aims to at least partially solve one of the technical problems in the above-mentioned technologies.
[0006] To achieve the above objectives, the first aspect of this utility model proposes a panel furniture connector that can be quickly installed, concealed, and easily disassembled, comprising: a connecting post, an expansion tube, and a limiting ball. The expansion tube includes a connecting tube and a disassembly tube, which are connected sideways to form an 8-shape. The limiting ball is disposed inside the connecting tube, and a limiting piece is provided on the side of the connecting tube. The connecting post includes a threaded post and a plastic tube sleeved on the threaded post, with the end of the threaded post away from the plastic tube extending out of the connecting tube.
[0007] As an improvement, the connecting pipe is provided with stepped inverted teeth.
[0008] As an improvement, the side of the plastic tube is provided with a snap-fit part that engages with the reverse teeth.
[0009] As an improvement, one end of the expansion tube is open and the other end is closed.
[0010] As an improvement, the end of the plastic tube away from the threaded post is provided with an arc-shaped groove that mates with the limiting ball.
[0011] As an improvement, the side of the arc-shaped groove is uniformly provided with several notches.
[0012] As an improvement, the side of the limiting piece is provided with a toothed structure.
[0013] Beneficial effects
[0014] This invention features a connecting post, an expansion tube, and a limiting ball. The connecting tube and the disassembly tube of the expansion tube form an 8-shaped structure. During installation, the expansion tube is placed into the mounting hole of the plate. By pressing the threaded post of the connecting post, the connecting pusher limit ball compresses the limiting plate of the connecting tube. The limiting plate expands outward and fits tightly against the plate, achieving a stable connection. During disassembly, pushing one of the connected plates causes the connecting post to enter the disassembly tube, disengaging from the reverse thread limit, allowing for easy disassembly.
[0015] The stepped back teeth inside the connecting tube engage with the snap-fit part on the plastic tube, effectively limiting the position of the connecting post and improving the stability of the connection. The closed design at one end of the expansion tube provides better support for the connection structure and prevents impurities from entering. The arc groove on the plastic tube engages with the limiting ball, and the side of the arc groove has a notch, which allows the plastic tube to fit better with the limiting ball, ensuring the expansion effect of the limiting plate. The toothed structure on the limiting plate increases the friction with the plate, further improving the reliability of the connection.
[0016] In summary, the furniture panel connection structure of this utility model has the advantages of stable connection, convenient installation and disassembly, and less risk of damaging the panel. It also solves the problem of exposed holes in the three-in-one connector and is suitable for widespread application in the furniture manufacturing industry. Attached Figure Description
[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:
[0018] Figure 1 This is a structural schematic diagram of a furniture panel connection structure according to an embodiment of the present utility model;
[0019] Figure 2 This is a first schematic diagram of the internal structure of a furniture panel connection structure according to an embodiment of the present utility model;
[0020] Figure 3 This is a second schematic diagram of the internal structure of a furniture panel connection structure according to an embodiment of the present utility model;
[0021] Figure 4 This is a schematic diagram of the installation structure of a furniture panel connection structure according to an embodiment of the present utility model. Detailed Implementation
[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0023] The furniture panel connection structure of this utility model embodiment will be described below with reference to the accompanying drawings.
[0024] like Figures 1 to 4 As shown in the figure, a connection structure for a furniture panel is illustrated. Its components include a connecting post 1, an expansion tube 2, and a limiting ball 3. The expansion tube 2 consists of a connecting tube 4 and a disassembly tube 5, with their sides interconnected, forming an "8" shape. The advantage of this structure is that it facilitates operation of the components inside the connecting tube 4 during installation and allows the limiting piece 6 to retract via the disassembly tube 5 during disassembly. One end of the expansion tube 2 is open, while the other end is closed. The closed end provides support for the expansion tube 2 during installation and prevents dust and other impurities from entering its interior.
[0025] The connecting tube 4 has a limiting piece 6 on its side, and the limiting piece 6 has a toothed structure 11 on its side. This structure can enhance the friction between the limiting piece 6 and the plate, thereby improving the stability of the connection. The connecting tube 4 has stepped back teeth 9 inside, which are used to limit the position of the connecting post 1 inside the connecting tube 4.
[0026] The connecting post 1 includes a threaded post 7 and a plastic tube 8 fitted onto the threaded post 7. One end of the threaded post 7, away from the plastic tube 8, extends to the outside of the connecting tube 4, making it easy to rotate the threaded post 7 with a tool. The side of the plastic tube 8 is provided with a locking part 10 that can engage with the back thread 9. When the connecting post 1 is inserted into the connecting tube 4, the locking part 10 engages with the back thread 9, which can prevent the connecting post 1 from moving freely inside the connecting tube 4.
[0027] The end of the plastic tube 8 away from the threaded post 7 has an arc-shaped groove 12 that mates with the limiting ball 3. Several notches 13 are evenly distributed on the side of the arc-shaped groove 12. These notches 13 allow the plastic tube 8 to undergo a certain elastic deformation when compressed by the limiting ball 3, thus better fitting the limiting ball 3. The limiting ball 3 is located inside the connecting tube 4 and mates with the arc-shaped groove 12. When the threaded post 7 is compressed, the plastic tube 8 moves towards the limiting ball 3, its end deforms, and compresses the limiting piece 6, causing the limiting piece 6 to expand outwards.
[0028] The installation steps of this embodiment are as follows: First, drill mounting holes matching the connecting post 1 and the expansion tube 2 on the two furniture panels to be connected; then, insert the expansion tube 2 into the corresponding mounting hole of one of the panels, ensuring that the open end of the expansion tube 2 faces the outside of the panel; next, insert the limiting ball 3 into the connecting tube 4, and then insert the end of the connecting post 1 with the plastic tube 8 into the connecting tube 4 from the open end of the expansion tube 2, so that the end of the threaded post 7 away from the plastic tube 8 protrudes from the connecting tube 4; finally, tap the protruding end of the threaded post 7 with a hammer, at which point the plastic tube 8... The limiting ball 3 is squeezed and deformed (similar to a handcuff structure), which in turn squeezes the limiting piece 6, causing the limiting piece 6 to press against the plate. The friction generated by the squeezing fixes the expansion tube 2 to the plate. Then, another matching plate is fixedly connected to the connecting column 1 through an interference fit, thus completing the connection between one plate and the connecting structure. By connecting the other plate to the connecting structure in the same way, a stable connection between the two furniture plates can be achieved. After installation, there are no holes left, and it is locked without the need to use a screwdriver. The overall structure is very flat.
[0029] The disassembly steps in this embodiment are as follows: When it is necessary to disassemble the plate, use a tool to apply a force to the plate on which the expansion tube 2 is installed in the direction of the connecting tube 4, or apply a force to the installed connecting post 1 in the direction of the disassembly tube 5, so that the connecting post 1 enters the disassembly tube 5. At this time, the limiting piece 6 of the connecting tube 4 will contract, and the force between the limiting piece 6 and the inner wall of the plate mounting hole will disappear. Take the connecting post 1 out of the disassembly tube 5, and then take the expansion tube 2 out of the mounting hole of the plate to complete the disassembly.
[0030] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0032] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.
Claims
1. A quick and easy-to-install, invisible and easy-to-disassemble furniture connecting piece for panels, characterized in that, The device includes a connecting post (1), an expansion tube (2), and a limiting ball (3). The expansion tube (2) includes a connecting tube (4) and a disassembly tube (5). The connecting tube (4) and the disassembly tube (5) are connected on the side to form an 8 shape. The limiting ball (3) is located inside the connecting tube (4). A limiting piece (6) is provided on the side of the connecting tube (4). The connecting post (1) includes a threaded post (7) and a plastic tube (8) sleeved on the threaded post (7). The end of the threaded post (7) away from the plastic tube (8) extends out of the connecting tube (4).
2. A fast and easy to install and invisible and easy to remove furniture connection according to claim 1, characterized in that, The connecting tube (4) is provided with stepped inverted teeth (9).
3. A fast and invisible, easy to disassemble furniture connecting element according to claim 2, characterized in that, The side of the plastic tube (8) is provided with a snap-fit part (10) that engages with the back teeth (9).
4. A fast and invisible, easy to disassemble furniture connecting element according to claim 1, characterized in that, The expansion tube (2) is open at one end and closed at the other end.
5. A fast and invisible, easy to disassemble furniture connecting element according to claim 1, characterized in that, The plastic tube (8) has an arc groove (12) at the end away from the threaded post (7) that mates with the limiting ball (3).
6. The panel furniture connector according to claim 5, characterized in that it is quick to install, concealed, and easy to disassemble, The side of the arc groove (12) is uniformly provided with several notches (13).
7. The panel furniture connector according to claim 1, characterized in that it is quick to install, concealed, and easy to disassemble, and is characterized in that... The side of the limiting piece (6) is provided with a toothed structure (11).