Liftable desk corner connector

Abstract

The utility model discloses a liftable desk corner connecting piece relates to desk mounting piece technical field, the utility model discloses a L shape's horizontal board and riser, and the horizontal board is equipped with first horizontal connecting portion and first vertical connecting portion, and the riser is equipped with second vertical connecting portion and second horizontal connecting portion, first vertical connecting portion and second horizontal connecting portion are connected through the hinge structure swing joint, and the both can rotate relatively to adapt to the structural deformation in the desk lifting process, and the inner corner of horizontal board and riser is equipped with first triangle reinforcing plate and second triangle reinforcing plate respectively, and first horizontal connecting portion and second vertical connecting portion are opened with first installation groove and second installation groove respectively, and the hinge structure includes first hinge piece, second hinge piece and stainless steel hinged axle, the utility model discloses whole structural strength is high, and the installation is convenient, and has dynamic adaptability and anti -deformation ability, and is suitable for various intelligent lifting office or study furniture.

Description

Technical Field

[0001] This utility model belongs to the technical field of desk installation components, and in particular relates to a height-adjustable desk corner connector. Background Technology

[0002] In existing technologies, traditional desk corner connections typically employ fixed metal corner brackets or wooden mortise and tenon joints. These connection methods are simple in structure, low in cost, and suitable for static use scenarios. However, with the development of smart furniture, especially the widespread adoption of electrically adjustable desks, the desktop undergoes slight angular changes or structural deformations during height adjustment. Traditional rigid connectors cannot adapt to this dynamic displacement, easily leading to stress concentration at the connection points, resulting in loosening, abnormal noise, cracking, or even failure, affecting the desk's stability and lifespan. Furthermore, existing connectors generally lack effective reinforcement designs, making them prone to deformation under long-term loads, and their small adjustment margins require high manufacturing and assembly precision.

[0003] To address this issue, we offer a height-adjustable desk corner connector. Utility Model Content

[0004] The purpose of this utility model is to provide a height-adjustable desk corner connector. By using an L-shaped combination of horizontal and vertical plates with a hinge structure and setting a triangular reinforcing plate at the inner corner, the connector has sufficient structural strength and can adapt to the relative displacement generated during the desk's lifting process. This solves the problems of existing rigid corner connectors being prone to loosening, cracking, failure, and difficult installation and adjustment under dynamic use conditions.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a height-adjustable desk corner connector, comprising a horizontal plate and a vertical plate. The horizontal plate has an L-shaped structure, with one end extending horizontally to form a first horizontal connecting portion and the other end extending vertically downwards to form a first vertical connecting portion. The vertical plate also has an L-shaped structure, with one end extending vertically to form a second vertical connecting portion and the other end extending horizontally inwards to form a second horizontal connecting portion. The first vertical connecting portion of the horizontal plate and the second horizontal connecting portion of the vertical plate are connected at their adjacent edges by a hinge structure, allowing the horizontal and vertical plates to rotate relative to each other around the hinge structure. The horizontal plate is rotated; the first horizontal connecting part of the horizontal plate is used to fix it to the lower part of the horizontal surface of the desk table, and the second vertical connecting part of the vertical plate is used to fix it to the lower part of the vertical surface of the desk table; a first triangular reinforcing plate is provided at the inner corner of the L-shaped structure of the horizontal plate, and the two right-angled sides of the first triangular reinforcing plate are fixedly connected to the inner surfaces of the first horizontal connecting part and the first vertical connecting part of the horizontal plate, respectively; a second triangular reinforcing plate is provided at the inner corner of the L-shaped structure of the vertical plate, and the two right-angled sides of the second triangular reinforcing plate are fixedly connected to the inner surfaces of the second vertical connecting part and the second horizontal connecting part of the vertical plate, respectively.

[0007] The present invention is further configured such that both the horizontal plate and the vertical plate are integrally bent from cold-rolled steel plates, and both the outer surfaces of the horizontal plate and the vertical plate are provided with an anti-corrosion coating.

[0008] The present invention is further configured such that the edge of the first horizontal connecting part of the horizontal plate is provided with a first mounting groove for mounting to the horizontal surface of the desktop, and the edge of the second vertical connecting part of the vertical plate is provided with a second mounting groove for mounting to the vertical surface of the desktop.

[0009] The present invention is further configured such that the first triangular reinforcing plate and the second triangular reinforcing plate are both metal stamping parts, and the lengths of the first triangular reinforcing plate and the second triangular reinforcing plate are the same as the inner side lengths of the horizontal plate and the vertical plate.

[0010] The present invention is further configured such that the hinge structure includes a first hinge piece and a second hinge piece that cooperate with each other. The first hinge piece is fixed to the outside of the first vertical connecting part of the horizontal plate, and the second hinge piece is fixed to the outside of the second horizontal connecting part of the vertical plate. The two are connected by a hinge shaft.

[0011] The present invention is further configured such that the hinge shaft in the hinge structure is made of stainless steel, the first hinge piece and the second hinge piece are sleeved outside the hinge shaft, and the first hinge piece and the second hinge piece are embedded with wear-resistant bushings.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model sets a hinge structure between the horizontal and vertical plates, allowing them to rotate relative to each other within a certain angle range. This flexibly absorbs the structural stress generated during the lifting process, significantly improving the connection reliability and service life. It is particularly suitable for intelligent furniture systems such as electric height-adjustable desks.

[0014] 2. This utility model forms a stable triangular support structure by setting a first triangular reinforcing plate and a second triangular reinforcing plate at the L-shaped inner corners of the horizontal and vertical plates, respectively. This effectively improves the overall bending, torsion and shear resistance of the connector, enabling it to withstand the vertical load and lateral force generated by the desk during daily use, and avoids deformation or loosening caused by long-term stress.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of one side of the overall upper structure of a height-adjustable desk corner connector.

[0018] Figure 2 This is a schematic diagram of the other side of the overall upper structure of a height-adjustable desk corner connector.

[0019] Figure 3 This is a schematic diagram of the overall lower structure of a height-adjustable desk corner connector.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Horizontal plate; 11. First horizontal connecting part; 12. First vertical connecting part; 13. First triangular reinforcing plate; 14. First mounting groove; 2. Vertical plate; 21. Second vertical connecting part; 22. Second horizontal connecting part; 23. Second triangular reinforcing plate; 24. Second mounting groove; 3. Hinge structure; 31. First hinge piece; 32. Second hinge piece; 33. Hinge shaft. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Example

[0024] Please see Figure 1-3This utility model relates to a height-adjustable desk corner connector, comprising a horizontal plate 1 and a vertical plate 2. The horizontal plate 1 has an L-shaped structure, with one end extending horizontally to form a first horizontal connecting part 11 and the other end extending vertically downward to form a first vertical connecting part 12. The vertical plate 2 also has an L-shaped structure, with one end extending vertically to form a second vertical connecting part 21 and the other end extending horizontally inward to form a second horizontal connecting part 22. The first vertical connecting part 12 of the horizontal plate 1 and the second horizontal connecting part 22 of the vertical plate 2 are connected at their adjacent edges by a hinge structure 3, allowing the horizontal plate 1 and the vertical plate 2 to rotate relative to each other around the hinge structure 3. The first horizontal connecting part 11 of the horizontal plate 1 is used to fix it to the lower part of the horizontal surface of the desk table, and the second vertical connecting part 21 of the vertical plate 2 is used to fix it to the lower part of the vertical surface of the desk table. A first triangular reinforcing plate 13 is provided at the inner corner of the L-shaped structure of the horizontal plate 1, and the two right-angled sides of the first triangular reinforcing plate 13 are fixedly connected to the inner surfaces of the first horizontal connecting part 11 and the first vertical connecting part 12 of the horizontal plate 1, respectively. A second triangular reinforcing plate 23 is provided at the inner corner of the L-shaped structure of the vertical plate 2, and the two right-angled sides of the second triangular reinforcing plate 23 are fixedly connected to the inner surfaces of the second vertical connecting part 21 and the second horizontal connecting part 22 of the vertical plate 2, respectively.

[0025] Specifically, the hinge structure 3 includes a first hinge piece 31 and a second hinge piece 32 that cooperate with each other. The first hinge piece 31 is fixed to the outside of the first vertical connecting part 12 of the horizontal plate 1, and the second hinge piece 32 is fixed to the outside of the second horizontal connecting part 22 of the vertical plate 2. The two are connected by a hinge shaft 33. The hinge shaft 33 in the hinge structure 3 is made of stainless steel. The first hinge piece 31 and the second hinge piece 32 are sleeved on the outside of the hinge shaft 33, and wear-resistant bushings are embedded in the first hinge piece 31 and the second hinge piece 32.

[0026] Furthermore, the first horizontal connecting part 11 of the horizontal plate 1 has a first mounting groove 14 for mounting to the horizontal surface of the desktop, and the second vertical connecting part 21 of the vertical plate 2 has a second mounting groove 24 for mounting to the vertical surface of the desktop; the first triangular reinforcing plate 13 and the second triangular reinforcing plate 23 are both metal stamping parts, and the lengths of the first triangular reinforcing plate 13 and the second triangular reinforcing plate 23 are the same as the inner side lengths of the horizontal plate 1 and the vertical plate 2; the horizontal plate 1 and the vertical plate 2 are both integrally bent from cold-rolled steel plates, and the outer surfaces of the horizontal plate 1 and the vertical plate 2 are provided with anti-corrosion coatings.

[0027] The height-adjustable desk corner connector provided in this embodiment achieves structural stability and motion adaptability of the desk corner during the lifting process. Specifically, both the horizontal plate 1 and the vertical plate 2 adopt an L-shaped structure, corresponding to the installation requirements of the horizontal desktop and vertical side plate of the desk, respectively: the first horizontal connecting part 11 of the horizontal plate 1 is used to fix it to the horizontal surface below the desktop, while the second vertical connecting part 21 of the vertical plate 2 is used to fix it to the lower part of the vertical surface on the side of the desktop; the two are movably connected by a hinge structure 3 located at adjacent edges; wherein the first vertical connecting part 12 of the horizontal plate 1 and the second horizontal connecting part 22 of the vertical plate 2 are respectively fixed to the first hinge piece 31 and the second hinge piece 32 on the outside, and share a stainless steel hinge shaft 33, so that the horizontal plate 1 and the vertical plate 2 can rotate relative to each other around the axis, thereby adapting to the displacement requirements caused by angle fine adjustment or structural deformation during the electric or manual lifting of the desk, and avoiding stress concentration or structural damage caused by rigid connection.

[0028] To further enhance the overall rigidity and bending resistance, a first triangular reinforcing plate 13 and a second triangular reinforcing plate 23 are respectively installed at the L-shaped inner corners of the horizontal plate 1 and the vertical plate 2. Their right-angled sides are fixed to the inner surface of the corresponding connecting parts to form a stable triangular support structure, which effectively disperses the load and prevents local deformation.

[0029] In addition, to facilitate installation and enhance connection reliability, the mounting ends of the horizontal plate 1 and the vertical plate 2 are respectively provided with a first mounting groove 14 and a second mounting groove 24, which can be embedded into the desktop structure and fastened by screws or other means; all metal parts (including the horizontal plate 1, the vertical plate 2 and the triangular reinforcing plate) are made of cold-rolled steel plates by integral bending or stamping to ensure structural strength and manufacturing precision, while the outer surface is coated with an anti-corrosion coating to extend service life.

[0030] The operation process of this embodiment is as follows: First, both the horizontal plate 1 and the vertical plate 2 are made of cold-rolled steel plates and are integrally bent into L-shaped structures by a CNC bending machine. The horizontal plate 1 includes a first horizontal connecting part 11 extending in the horizontal direction and a first vertical connecting part 12 extending downward in the vertical direction; the vertical plate 2 includes a second vertical connecting part 21 extending in the vertical direction and a second horizontal connecting part 22 extending inward in the horizontal direction (i.e., towards the horizontal plate 1); at the inner corner of the L-shape of the horizontal plate 1, a first triangular reinforcing plate 13 made of cold-rolled steel plate of the same material is welded or riveted, and its two right-angled sides are respectively attached to and fixed to the inner surfaces of the first horizontal connecting part 11 and the first vertical connecting part 12; similarly, a second triangular reinforcing plate 23 is also provided at the inner corner of the L-shape of the vertical plate 2, and its structure and installation method are symmetrical with the first triangular reinforcing plate 13 to enhance the overall torsional and bending resistance.

[0031] Subsequently, a first hinge piece 31 is fixed on the outer surface of the first vertical connecting part 12 of the horizontal plate 1, and a second hinge piece 32 is fixed on the outer surface of the second horizontal connecting part 22 of the vertical plate 2. After the two are aligned, they are inserted into a stainless steel hinge shaft 33. In order to reduce rotational friction and improve durability, wear-resistant bushings made of polyoxymethylene (POM) or copper-based composite material are embedded in the shaft holes of both the first hinge piece 31 and the second hinge piece 32.

[0032] Next, a first mounting groove 14 is formed at the edge of the first horizontal connecting part 11 away from the corner. This groove is a long countersunk groove, which makes it easy to insert screws from under the desktop and fasten them to the bottom surface of the horizontal panel of the desk. Similarly, a second mounting groove 24 is formed at the top edge of the second vertical connecting part 21 to fix the vertical plate 2 to the back of the vertical side panel of the desk.

[0033] After assembly, all metal parts undergo degreasing and phosphating, and are then coated with an epoxy resin anti-corrosion coating to improve rust prevention and aesthetics. During actual assembly, the horizontal plate 1 is first fixed to the lower part of the horizontal support beam of the height-adjustable desk tabletop using self-tapping screws through the first mounting slot 14. Then, the vertical plate 2 is fixed to the inner support structure of the adjacent vertical side plate through the second mounting slot 24. At this time, the horizontal plate 1 and the vertical plate 2 naturally form an angle connection through the hinge structure 3. When the desk lifting mechanism drives the tabletop to tilt or change height, the horizontal plate 1 and the vertical plate 2 can rotate relative to each other at a small angle around the hinge axis 33, thereby releasing the internal stress caused by structural deformation and preventing cracking or loosening of the connection.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. 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.

Claims

1. A height-adjustable desk corner connector, comprising a horizontal plate (1) and a vertical plate (2), characterized in that: The horizontal plate (1) has an L-shaped structure, with one end extending horizontally to form a first horizontal connecting part (11) and the other end extending vertically downward to form a first vertical connecting part (12); the vertical plate (2) also has an L-shaped structure, with one end extending vertically to form a second vertical connecting part (21) and the other end extending horizontally inward to form a second horizontal connecting part (22); the first vertical connecting part (12) of the horizontal plate (1) and the second horizontal connecting part (22) of the vertical plate (2) are connected at their adjacent edges by a hinge structure (3), so that the horizontal plate (1) and the vertical plate (2) can rotate relative to each other around the hinge structure (3); The first horizontal connecting part (11) of the horizontal plate (1) is used to fix it to the lower part of the horizontal surface of the desk table, and the second vertical connecting part (21) of the vertical plate (2) is used to fix it to the lower part of the vertical surface of the desk table; a first triangular reinforcing plate (13) is provided at the inner corner of the L-shaped structure of the horizontal plate (1), and the two right-angled sides of the first triangular reinforcing plate (13) are fixedly connected to the inner surfaces of the first horizontal connecting part (11) and the first vertical connecting part (12) of the horizontal plate (1); a second triangular reinforcing plate (23) is provided at the inner corner of the L-shaped structure of the vertical plate (2), and the two right-angled sides of the second triangular reinforcing plate (23) are fixedly connected to the inner surfaces of the second vertical connecting part (21) and the second horizontal connecting part (22) of the vertical plate (2).

2. The adjustable desk corner connector according to claim 1, characterized in that, Both the horizontal plate (1) and the vertical plate (2) are integrally bent from cold-rolled steel plates, and both the outer surfaces of the horizontal plate (1) and the vertical plate (2) are provided with anti-corrosion coatings.

3. The adjustable desk corner connector according to claim 1, characterized in that, The first horizontal connecting part (11) of the horizontal plate (1) has a first mounting groove (14) for mounting to the horizontal surface of the desktop, and the second vertical connecting part (21) of the vertical plate (2) has a second mounting groove (24) for mounting to the vertical surface of the desktop.

4. The adjustable desk corner connector according to claim 1, characterized in that, Both the first triangular reinforcing plate (13) and the second triangular reinforcing plate (23) are metal stamping parts, and the lengths of the first triangular reinforcing plate (13) and the second triangular reinforcing plate (23) are the same as the inner side lengths of the horizontal plate (1) and the vertical plate (2).

5. A height-adjustable desk corner connector according to claim 1, characterized in that, The hinge structure (3) includes a first hinge piece (31) and a second hinge piece (32) that cooperate with each other. The first hinge piece (31) is fixed to the outside of the first vertical connecting part (12) of the horizontal plate (1), and the second hinge piece (32) is fixed to the outside of the second horizontal connecting part (22) of the vertical plate (2). The two are connected by a hinge shaft (33).

6. A height-adjustable desk corner connector according to claim 5, characterized in that, The hinge shaft (33) in the hinge structure (3) is made of stainless steel. The first hinge piece (31) and the second hinge piece (32) are sleeved on the outside of the hinge shaft (33), and the first hinge piece (31) and the second hinge piece (32) are embedded with wear-resistant bushings.

Images