Office desk with desk leg hidden connecting structure

Abstract

According to the office desk with the desk leg hidden connecting structure, a positioning plate is completely embedded in a positioning groove of a desk leg, then a decorative plate covers the positioning plate, exposed connecting pieces are thoroughly eliminated through stacked assembly of the positioning plate and the decorative plate, the visual effect of seamless connection is achieved, the aesthetic requirement of high-end office furniture is met, and the service life of the office desk is prolonged. Besides, through cooperation of the positioning columns and the first positioning holes, rapid combination and assembly of plastic, metal, solid wood and other heterogeneous materials are achieved, triple breakthrough of functionality, attractiveness and economical efficiency is achieved through structural innovation of the technical system, and a solution capable of achieving mass production is provided for customized production of office furniture.

Description

Technical Field

[0001] This utility model belongs to the field of furniture manufacturing technology, and in particular relates to a desk with a hidden connection structure for table legs. Background Technology

[0002] In today's market, with customers' increasing pursuit of personalization, higher demands are being placed on the design and material selection of table legs. Customers want table legs made from a variety of materials, such as combining plastic decorative panels with solid wood legs to achieve a combination of aesthetics and practicality. However, existing one-piece molding processes have significant shortcomings. On the one hand, it is difficult to directly produce components of different materials in one piece. To achieve this, multiple complex processes are often required, significantly increasing processing difficulty, production costs, and production cycle. On the other hand, existing methods of combining two components typically involve external screw fixing. This not only compromises the overall simplicity and aesthetics of the table leg but also may lead to loosening and damage during use due to exposed screws, reducing the stability and lifespan of the table leg. Therefore, a new table leg manufacturing technology is urgently needed to solve these problems. Summary of the Invention

[0003] (a) Purpose of the utility model

[0004] To overcome the above shortcomings, the purpose of this utility model is to provide a desk with a concealed connection structure for the legs, thereby solving the technical problem that existing desk legs cannot quickly and easily assemble components of different materials together.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution provided in this application is as follows:

[0007] A desk with a hidden leg connection structure includes: a tabletop and table legs disposed on both sides of the bottom of the tabletop. The outer side of the table legs is provided with a positioning groove. A positioning plate is disposed in the positioning groove and its shape matches the shape of the positioning groove. Multiple positioning posts are protruding outward from the surface of the positioning plate. The desk also includes: a decorative panel made of a different material from the table legs. Multiple first positioning holes for the positioning posts to be inserted are provided on the side of the panel. The edge of the panel abuts against the side of the positioning groove.

[0008] By fully embedding the positioning plate into the positioning groove of the table leg, and then covering the positioning plate with a decorative panel, the overlapping assembly of the positioning plate and the decorative panel completely eliminates exposed connecting parts, presenting a seamless visual effect that meets the aesthetic requirements of high-end office furniture. In addition, by cooperating with the positioning column and the first positioning hole, rapid assembly of dissimilar materials such as plastic, metal, and solid wood can be achieved. This technology system achieves a triple breakthrough in functionality, aesthetics, and economy through structural innovation, providing a mass-producible solution for the customized production of office furniture.

[0009] In some embodiments, there are multiple positioning slots, which are concentrically arranged and gradually increase in area to form a stepped shape.

[0010] By setting multiple concentrically arranged, stepped positioning slots with varying areas, the system can accommodate the installation needs of decorative panels of various sizes, solving the compatibility problem caused by the single size limitation of the positioning slots. Secondly, the concentric layout allows decorative panels of different sizes to be inserted into the positioning posts of the same positioning plate as long as the first positioning hole is in the same position, which is highly versatile. In addition, the stepped design creates a three-dimensional sense of layering beyond functionality, and enhances the visual aesthetics of the table legs through light and shadow refraction and material contrast, making the product more modern in design while meeting practical needs.

[0011] In some embodiments, the positioning post and the positioning plate are detachably connected;

[0012] By making the positioning posts and positioning plates detachable, the modular upgrade of the connection structure is achieved. This allows users to select positioning posts of different lengths for assembly based on the different positions of the decorative panels, breaking through the size limitations of the positioning posts. In addition, when the positioning posts wear out due to long-term use, it is not necessary to replace the entire positioning plate; only the damaged positioning post needs to be replaced, thus reducing maintenance costs.

[0013] In some embodiments, the positioning plate has a second positioning hole that is threadedly connected to the end of the positioning post;

[0014] In some embodiments, the positioning plate has a third positioning hole for the end of the positioning post to be inserted.

[0015] In some embodiments, the front side of the inner wall of the positioning groove is an outwardly flared inclined structure, and the rear side is a planar structure perpendicular to the table leg.

[0016] The composite structure design of the positioning groove, which combines the inclined and vertical surfaces, brings dual technical advantages. The outwardly expanding inclined surface at the front forms a natural guide channel, allowing the decorative panel to automatically slide into the positioning groove without precise alignment during installation, thus improving assembly efficiency compared to traditional flat structures. Meanwhile, the vertical plane at the rear forms a surface contact with the decorative panel, ensuring the stability of the decorative panel installation.

[0017] In some embodiments, both the table legs and the positioning grooves are U-shaped structures;

[0018] The geometric innovation of U-shaped table legs and positioning grooves saves space compared to traditional rectangular cross-sections, making them particularly suitable for narrow office environments. The streamlined contour eliminates the risk of bumps and knocks caused by right angles. Structural mechanics analysis shows that the U-shaped cross-section can evenly distribute the load along the major and minor axes, improving bending strength with the same amount of material. From an aesthetic point of view, the U-shaped curve is highly compatible with the minimalist style of modern office furniture, increasing its visual appeal. Attached Figure Description

[0019] Figure 1 This is a structural diagram of a desk with a hidden connecting leg structure according to the present invention;

[0020] Figure 2 This is an exploded view of a desk positioning plate, decorative plate, and desk legs with a hidden connection structure for the table legs according to this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the table legs in a desk with a hidden connection structure according to the present invention;

[0022] Figure 4 This is a cross-sectional view of the table legs in a desk with a hidden connection structure for table legs according to this utility model;

[0023] Figure 5 This is a schematic diagram of the positioning plate in a desk with a hidden connection structure for table legs, according to the present invention.

[0024] Figure label:

[0025] 1. Desktop; 2. Table legs; 201. Positioning groove; 3. Decorative panel; 4. Positioning plate; 401. Third positioning hole; 402. Positioning post. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0027] This utility model provides a desk with a concealed connection structure for the table legs 2, comprising: a tabletop 1 and table legs 2 symmetrically distributed on both sides of the bottom. The main body of the table legs 2 is made of high-density wood substrate, and a U-shaped positioning groove 201 (8-12mm deep) is opened on the outer side corresponding to the area covered by the decorative panel 3. A positioning plate 4 is embedded in the positioning groove 201. The positioning plate 4 can be made of metal, and its shape is perfectly matched with the positioning groove 201. It is fixed to the positioning groove 201 by glue or snap-fit, and the gap between the two is controlled within 0.5mm to ensure tight assembly.

[0028] In one specific embodiment, 4-6 stainless steel positioning posts 402 are vertically welded to the surface of the positioning plate 4. The posts have a diameter of 3mm and a height of 15mm and are distributed at the four corners of the positioning plate 4. The decorative plate 3 that matches it is made by injection molding. The back of the plate has first positioning holes corresponding to the number and position of the positioning posts 402. The hole diameter is designed to be 2.8mm to form an interference fit. During installation, the decorative plate 3 is aligned with the positioning posts 402 and pressed down until its side is completely flush with the side wall of the positioning groove 201.

[0029] Based on the above basic structure, the layout of the positioning groove 201 is further optimized. The surface of the table leg 2 is machined with three layers of concentric U-shaped grooves: the inner groove is 10mm deep and 80mm in diameter, the middle groove is 10mm deep and 100mm in diameter, and the outer groove is 10mm deep and 120mm in diameter, forming a stepped sunken structure.

[0030] This design allows for the selection of decorative panels 3 of different sizes for assembly. When installing a small decorative panel 3, it can be directly embedded into the same inner positioning groove 201 as the positioning plate 4. When a large decorative panel 3 needs to be replaced, the middle or outer groove can be used to achieve expansion and adaptation. In addition, the stepped structure also creates a light and shadow gradient effect, which can produce a three-dimensional relief-like visual layer under the illumination of light.

[0031] Preferably, the outer surface of the decorative panel 3 can be set with multiple U-shaped concentric stripe patterns. When the decorative panel 3 is embedded into the corresponding positioning groove 201, it forms a unified visual effect with other positioning grooves 201, achieving a seamless visual connection effect.

[0032] Specifically, in order to reduce the sharp edges and enhance the aesthetics of the table, the inner walls of the positioning groove 201 can be set as arc-shaped structures, and the edges of the decorative panel 3 can be set as arc-shaped edges that match the inner walls of the positioning groove 201.

[0033] To further improve maintenance convenience, this embodiment modifies the positioning plate 4 into a modular form.

[0034] In the first embodiment, a plurality of second positioning holes are evenly distributed on the surface of the positioning plate 4, and the inner walls of the holes are machined with M3 threads. The bottom of the positioning post 402 is provided with a corresponding threaded section and is fixed to the positioning plate 4 by screwing it in. When it is necessary to adjust the height of the positioning post 402, posts with lengths of 10mm, 15mm, and 20mm can be selected for replacement; if individual positioning posts 402 are damaged, they only need to be unscrewed for replacement without disassembling the entire positioning plate 4.

[0035] Specifically, in practice, it is recommended to apply thread-locking adhesive to the threaded connection of the positioning post 402 to prevent loosening while maintaining its detachable nature. This structure is particularly suitable for commercial office scenarios where frequent replacement of decorative panels 3 is required.

[0036] In the second embodiment, a third positioning hole 401 can be opened on the positioning plate 4. The positioning post 402 and the third positioning hole 401 are fixed by interference fit. When it is necessary to replace the positioning post 402 of different lengths, the positioning post 402 of the corresponding length is selected and inserted into the third positioning hole 401.

[0037] To simplify assembly operations, this embodiment also specifically optimizes the geometry of the positioning groove 201. For example... Figure 4 As shown, the front part of the inner wall of the positioning groove 201 (the side closest to the user) is machined into a 45° outward flare, while the rear part remains a vertical plane. The length of the flare area accounts for 1 / 3 of the total length of the groove, and the vertical area accounts for 2 / 3.

[0038] When installing decorative panel 3, the operator simply needs to place the front edge of the panel close to the inclined area and let it slide naturally down the inclined surface to automatically align with the positioning post 402. When decorative panel 3 slides to the vertical plane area, its side surface makes contact with the groove wall, achieving horizontal self-locking through friction. Testing has shown that this structure increases the initial alignment success rate from 60% with traditional structures to 98%, making it particularly suitable for non-professional operators.

[0039] Preferably, this embodiment is specifically designed for space utilization. For example... Figure 5 As shown, the table leg 2 adopts a U-shaped structure, and the long axis of the positioning groove 201 coincides with the axis of the table leg 2. The decorative panel 3 is designed as a U-shaped panel with a chamfer radius of 3mm to eliminate sharp angles.

[0040] The U-shaped design of the table legs 2 reduces the space occupied in the front-to-back direction by 25% while maintaining support strength, making it easier to store office chairs. The rounded contours also prevent leg bumps when people walk around, and ergonomic testing has reduced the probability of collision injuries.

[0041] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A desk with a concealed connection structure for table legs (2), characterized in that, include: The tabletop (1) and table legs (2) are provided on both sides of the bottom of the tabletop (1). The outer side of the table legs (2) is provided with a positioning groove (201). A positioning plate (4) is provided in the positioning groove (201) and its shape matches the shape of the positioning groove (201). The surface of the positioning plate (4) is provided with multiple positioning posts (402) protruding outward. The table legs (2) also include a decorative plate (3) made of a different material than the table legs (2). Multiple first positioning holes for the positioning posts (402) to be inserted are provided on the side. The edge of the plate abuts against the side of the positioning groove (201).

2. The desk with a concealed connection structure for table legs (2) according to claim 1, characterized in that, There are multiple positioning slots (201), which are concentrically arranged and gradually increase in area to form a stepped shape.

3. The desk with a concealed connection structure for table legs (2) according to claim 1, characterized in that, The positioning post (402) is detachably connected to the positioning plate (4).

4. The desk with a concealed connection structure for table legs (2) according to claim 3, characterized in that, The positioning plate (4) has a second positioning hole that is threaded to the end of the positioning post (402).

5. The desk with a concealed connection structure for table legs (2) according to claim 3, characterized in that, The positioning plate (4) has a third positioning hole (401) for the end of the positioning post (402) to be inserted.

6. The desk with a concealed connection structure for table legs (2) according to claim 2, characterized in that, The inner side wall of the positioning groove (201) has an outwardly sloping structure on the front side and a planar structure perpendicular to the table leg (2) on the rear side.

7. The desk with a concealed connection structure for table legs (2) according to claim 1, characterized in that, Both the table legs (2) and the positioning grooves (201) are U-shaped structures.

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