Hinge for an embedded cabinet structure

Abstract

This invention provides a hinge for embedded cabinet structures, comprising a main support plate, a rotating wheel, and a J-hook. The rotating wheel is rotatably connected to the main support plate and has a cam. The first end of the J-hook is fixed to the main support plate, and the second end of the J-hook is hook-shaped and engages with the cam. When the cam rotates relative to the main support plate at a first angle range, the J-hook undergoes elastic deformation and provides a circumferential driving force to the rotating wheel. When the cam rotates relative to the main support plate at a second angle range, the J-hook undergoes elastic deformation and provides static friction to the rotating wheel. Compared with existing technologies, this invention has the advantages of simple structure, high strength, and long service life. It effectively prevents the door from colliding with the wall, keeps the front of the door flush with the wall, minimizes the gap between the wall and the product, and has sufficient load-bearing capacity to effectively prevent the hinge from bending and deforming.

Description

Technical Field

[0001] This invention relates to the technical field of hinges, and in particular to a hinge for embedded cabinet structures. Background Technology

[0002] Currently, more and more users are preferring built-in cabinet structures in interior decoration. Built-in cabinet structures allow products to be embedded in the wall or hidden in a corner, making the product appear as a single unit relative to the wall, resulting in a more aesthetically pleasing and sophisticated look. Built-in cabinet products mainly consist of a main body with an opening and a door that opens and closes the opening, connected primarily by hinges. When such products are embedded in the wall, there should be a gap between the side of the main body and the wall, and the smaller the gap, the better; when the door is closed, the front of the door should be flush with the wall as much as possible; and when the door is open, it should not collide with the wall. However, current hinges do not meet these requirements, resulting in problems such as large gaps, non-flushness between the door and the wall, and the door easily colliding with the wall, leading to damage.

[0003] Currently, built-in cabinet structures mainly include refrigerators, wardrobes, washing machines, microwave ovens, and kitchen cabinets. Among them, refrigerators face more prominent problems, especially since refrigerator doors have load-bearing requirements, and ordinary hinges cannot support their weight, easily deforming and bending. Therefore, it is urgent to solve the above problems. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a hinge for an embedded cabinet structure, comprising a main support plate, a rotating wheel and a J-shaped hook, wherein the rotating wheel is rotatably connected to the main support plate and a cam is provided on the rotating wheel; The first end of the J-shaped hook is fixedly connected to the main support plate, and the second end of the J-shaped hook is bent and abuts against the cam. When the cam rotates relative to the main support plate at a first angle range, the J-hook undergoes elastic deformation and provides circumferential driving force to the wheel; when the cam rotates relative to the main support plate at a second angle range, the J-hook undergoes elastic deformation and provides static friction force to the wheel.

[0005] Furthermore, the main support plate is provided with a limiting block, and the rotating wheel is provided with a stop block that cooperates with the limiting block to limit the maximum angle that the rotating wheel can rotate relative to the main support plate; this can effectively limit the maximum rotation angle, thereby preventing the door from colliding with the wall.

[0006] Furthermore, the inner wall of the main support plate is provided with an assembly platform, and the first end of the J-shaped hook is fixed to the assembly platform; the J-shaped hook is spaced at a certain distance from the inner wall of the main support plate, so that it can better cooperate with the cam.

[0007] Furthermore, a connecting plate extends from the main support plate, and several reinforcing ribs are spaced apart at the junction of the main support plate and the connecting plate; the connecting plate can be easily connected to the main body or door body, and under the action of the reinforcing ribs, it can ensure sufficient strength, have load-bearing capacity, and prevent bending deformation.

[0008] Furthermore, the main support plate is covered with a protective cover, which can effectively protect the main support plate and the internal J-shaped hooks, and extend their service life.

[0009] Furthermore, the rotating wheel has a first pin hole, and a first pin shaft connected to the main support plate is installed in the first pin hole to realize the rotational connection of the rotating wheel.

[0010] Furthermore, shims are pressed onto both ends of the first pin hole to make the rotation process more stable and reliable, and to ensure sufficient load-bearing capacity and avoid bending deformation.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting the second end of the J-shaped hook into a hook shape, a stable and reliable elastic force can be provided. A cam is provided on the rotating wheel to cooperate with it. When the cam rotates relative to the main support plate at a first angle range, the J-shaped hook undergoes elastic deformation and provides circumferential driving force to the rotating wheel, enabling automatic closing within this angle range. When the rotation angle is in the second angle range, the J-shaped hook can provide static friction to the rotating wheel, enabling hovering within this angle range. This prevents the door from being opened too much and avoids collision between the door and the wall, thus solving the technical problems in the prior art. Overall, the present invention has the advantages of simple structure, high strength and long service life. It can effectively prevent the door from colliding with the wall, keep the front of the door flush with the wall, minimize the gap between the wall and the product, and has sufficient load-bearing capacity to effectively prevent the hinge from bending and deforming. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the rotating wheel in this invention; Figure 3 This is an exploded view of the present invention; Figure 4 This is a schematic diagram of the actual working state of the present invention.

[0013] The reference numerals in the attached drawings are explained as follows: 1-Main support plate; 11-Limiting block; 12-Assembly table; 13-Connecting plate; 14-Reinforcing rib; 2-Rotating wheel; 21-Cam; 211-First arc surface; 212-Second arc surface; 22-Stop block; 23-First pin hole; 24-Second pin hole; 3-J-hook; 4-Protective cover; 5-First pin shaft; 6-Shim; 7-Second pin shaft; 8-Assembly plate. Detailed Implementation

[0014] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only.

[0015] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0016] like Figures 1 to 4 As shown, the present invention provides a hinge for an embedded cabinet structure, including a main support plate 1, a rotating wheel 2 and a J-shaped hook 3. The rotating wheel 2 is rotatably connected to the main support plate 1, and a cam 21 is provided on the rotating wheel 2. The first end of the J-shaped hook 3 is fixedly connected to the main support plate 1, and the second end of the J-shaped hook 3 is bent and engages with the cam 21. When the cam 21 rotates relative to the main support plate 1 at the first angle range, the J-hook 3 undergoes elastic deformation and provides circumferential driving force to the rotating wheel 2; when the cam 21 rotates relative to the main support plate 1 at the second angle range, the J-hook 3 undergoes elastic deformation and provides static friction force to the rotating wheel 2.

[0017] For details, please refer to Figure 2As shown, the cam 21 is fan-shaped, and its arc edge serves as the contact surface. The contact surface of the cam 21 includes a smoothly transitioning first arc surface 211 and a second arc surface 212. The central angle occupied by the first arc surface 211 corresponds to a first angle range, and the central angle occupied by the second arc surface 212 corresponds to a second angle range. The first arc surface 211 is positioned closer to the main support plate 1, and its radius is larger than that of the second arc surface 212. In some embodiments, the first angle range is 0° to 20°, and the second angle range is 20° to 115°.

[0018] The main support plate 1 is provided with a limiting block 11, and the rotating wheel 2 is provided with a stop block 22 that cooperates with the limiting block 11 to limit the maximum angle of rotation of the rotating wheel 2 relative to the main support plate 1; preferably, the maximum angle is 115°. An assembly table 12 protrudes from the inner wall of the main support plate 1, and the first end of the J-shaped hook 3 is fixed to the assembly table 12. A connecting plate 13 extends and protrudes from the main support plate 1, and several reinforcing ribs 14 are spaced apart at the junction of the main support plate 1 and the connecting plate 13. A protective cover 4 is provided on the main support plate 1. The protective cover 4 effectively prevents dust and dirt, thereby protecting the entire hinge, extending its service life, and also serves as a decorative cover, making it more aesthetically pleasing.

[0019] The rotating wheel 2 has a first pin hole 23, in which a first pin 5 connected to the main support plate 1 is installed. The rotating wheel 2 also has a second pin hole 24, in which an assembly plate 8 is fixedly connected via a second pin 7. Washers 6 are pressed onto both ends of the first pin hole 23. The washers 6 are preferably made of plastic or metal to ensure that the hinge of the present invention has sufficient load-bearing capacity and rotates more smoothly.

[0020] In actual use, the main support plate 1 is fixed to the main body by the connecting plate 13, the rotating wheel 2 is fixed to the door body by the assembly plate 8, and the rotating wheel 2 and the main support plate 1 are rotatably connected by the first pin 5. When the door is open, the cam 21 rotates relative to the main support plate 1 at a first angle range. The cam 21 causes the J-hook 3 to undergo elastic deformation, which provides a certain circumferential driving force to the rotating wheel 2, causing the rotating wheel 2 to tend to rotate to the initial position. That is, the door can automatically close within the first angle range. When the cam 21 rotates relative to the main support plate 1 at an angle exceeding the first angle range and reaches the second angle range, the cam 21 will also cause the J-hook 3 to undergo elastic deformation, but the deformation is smaller and the force generated is also smaller than the circumferential driving force mentioned above. The J-hook 3 can provide static friction to the cam 21, causing the rotating wheel 2 to hover relative to the main support plate 1. That is, the door can hover arbitrarily within the second angle range. When the door continues to rotate to the maximum angle, the limit block 11 will stop with the stop block 22, thereby limiting its continued rotation and preventing the door from continuing to rotate and colliding with the wall.

[0021] refer to Figure 4 As shown, the hinge of this invention, when applied to a refrigerator, allows for a 4mm gap between the side of the refrigerator body and the wall when the refrigerator is embedded in the wall; the front of the door remains flush with the wall when closed; and the door will not collide with the wall even when opened to its maximum angle. It is worth noting that the hinge of this application can be located at the top or bottom of the door; it can also be installed at both ends of the door according to actual load requirements, or it can be combined with general hinges, depending on the actual budget and requirements. (Reference) Figure 4 As shown, the upper end of the upper door and the lower end of the lower door of the refrigerator are hinges of this application, while the lower end of the upper door and the upper end of the lower door of the refrigerator use ordinary hinges.

[0022] In summary, the technical solution of this invention can fully and effectively achieve the above-mentioned objectives. Furthermore, the structure and functional principles of this invention have been fully verified in the embodiments, achieving the expected effects and objectives. Without departing from the principles and essence of this invention, various changes or modifications can be made to the embodiments. Therefore, this invention includes all substitutions within the scope mentioned in the patent application claims, and any equivalent changes made within the scope of this patent application are within the scope of the patent application.

Claims

1. A hinge for an embedded cabinet structure, characterized in that: It includes a main support plate (1), a rotating wheel (2) and a J-shaped hook (3). The rotating wheel (2) is rotatably connected to the main support plate (1), and a cam (21) is provided on the rotating wheel (2). The first end of the J-shaped hook (3) is fixedly connected to the main support plate (1), and the second end of the J-shaped hook (3) is bent and abuts against the cam (21); When the cam (21) rotates relative to the main support plate (1) at a first angle range, the J-hook (3) undergoes elastic deformation and provides circumferential driving force to the wheel (2); when the cam (21) rotates relative to the main support plate (1) at a second angle range, the J-hook (3) undergoes elastic deformation and provides static friction force to the wheel (2).

2. The hinge for an embedded cabinet structure according to claim 1, characterized in that: The main support plate (1) is provided with a limiting block (11), and the rotating wheel (2) is provided with a stop block (22) that cooperates with the limiting block (11) to limit the maximum angle that the rotating wheel (2) can rotate relative to the main support plate (1).

3. The hinge for an embedded cabinet structure according to claim 1, characterized in that: The inner wall of the main support plate (1) is provided with an assembly table (12), and the first end of the J-shaped hook (3) is fixed to the assembly table (12).

4. The hinge for an embedded cabinet structure according to claim 1, characterized in that: A connecting plate (13) extends and protrudes from the main support plate (1), and a number of reinforcing ribs (14) are provided at intervals at the junction of the main support plate (1) and the connecting plate (13).

5. The hinge for an embedded cabinet structure according to claim 1, characterized in that: The main support plate (1) is covered with a protective cover (4).

6. The hinge for an embedded cabinet structure according to claim 1, characterized in that: The rotating wheel (2) has a first pin hole (23), and a first pin shaft (5) connected to the main support plate (1) is installed in the first pin hole (23).

7. The hinge for an embedded cabinet structure according to claim 6, characterized in that: Gaskets (6) are pressed onto both ends of the first pin hole (23).

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