A damper hinge

Abstract

The utility model relates to hinge technical field, specifically disclose a kind of damping hinge, by being equipped with the laminated core group between hinge cup and hinge arm, laminated core group is equipped with the triangular piece articulated with it, wherein triangular piece is rotatably connected between laminated core group, hinge arm and hydraulic cylinder respectively, by making triangular piece rotatably connected between laminated core group, hinge arm and hydraulic cylinder respectively, it is equivalent to compared with existing technology to omit brace also can realize the opening and closing action of hinge, and compared with existing technology greatly simplifies its overall structure, to facilitate assembly while also can save manufacturing cost, and laminated core group is also equipped with limit hole, limit hole is equipped with protruding portion inside, when hinge cup and hinge arm rotate, limit shaft on triangular piece slides along the inner wall of limit hole, since limit hole is equipped with protruding portion, so when limit shaft slides to protruding portion, the force required to pull hydraulic cylinder is larger, so the rotation speed between hinge cup and hinge arm will reduce at this time, to reach the effect of damping buffer.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to a damping hinge. Background Technology

[0002] A hinge, also known as a hinge arm, is a mechanical device used to connect two solid objects and allow relative rotation between them. However, depending on the thickness of the door panel, current hinges are available for both thicker and thinner doors. When dealing with thicker doors, if the hinge arm is too short, the door may scrape against the side panel of the cabinet when opening and closing. Therefore, the hinge arm needs to be extended to accommodate thicker doors. Hinges suitable for thicker doors typically consist of a hinge cup, a hinge plate, a hinge triangle, a pull rod, and a hinge arm. By connecting the two ends of the pull rod to one end of the hinge plate and the hinge triangle, the hinge cup and hinge arm can rotate and open / close. This type of hinge has many structural components, making assembly more complex and production more expensive. Furthermore, when the cabinet door is closed, it is prone to colliding with the cabinet body, producing impact noise and affecting the user experience.

[0003] The technical problem to be solved by this application is: to design a damping hinge with a simple structure that can prevent collisions between cabinet doors and cabinet bodies and is suitable for thick doors. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a damping hinge with a simple structure that can prevent collisions between cabinet doors and cabinet bodies and is suitable for thick doors.

[0005] The technical solution adopted by this utility model is as follows: a damping hinge, including a hinge cup and a hinge arm rotatably connected to the hinge cup, a stacked plate assembly is provided between the hinge cup and the hinge arm, the stacked plate assembly is also provided with a triangular member hinged thereto, the triangular member is connected to the hinge arm, the stacked plate assembly is provided with a limiting hole, the triangular member is provided with a limiting shaft, the limiting shaft and the limiting hole are in a limiting rotational fit, the limiting hole is provided with a protrusion, and when the hinge cup and the hinge arm rotate, the limiting shaft slides along the inner wall of the limiting hole.

[0006] In some embodiments, the hinge cup is provided with a U-shaped pin that is positioned therewith. The U-shaped pin includes a first connecting end and a second connecting end, and one end of the stacked plate assembly is rotatably connected to the first connecting end of the U-shaped pin.

[0007] In some embodiments, the hinge cup is further provided with a cover plate rotatably connected thereto, one end of which is rotatably connected to the second connecting end of the U-shaped nail.

[0008] In some embodiments, a torsion spring assembly is provided between the cover plate and the stacked plate assembly. The torsion spring assembly is provided with a first connecting shaft that limits its movement. The other end of the cover plate is rotatably connected to the first connecting shaft.

[0009] In some embodiments, the hinge arm is provided with a first connecting hole, a second connecting hole and a third connecting hole, and the first connecting hole is connected to the first connecting shaft.

[0010] In some embodiments, the stacked plate assembly is provided with a connecting pin, which is positioned to be connected to the second connecting hole of the hinge arm.

[0011] In some embodiments, the triangular member is provided with a second connecting shaft, which is rotatably connected to a third connecting hole of the hinge arm.

[0012] In some embodiments, the hinge arm is further provided with a mounting base connected thereto, the mounting base is provided with a hydraulic cylinder, and the triangular member is provided with a third connecting shaft, which is rotatably connected to the drive end of the hydraulic cylinder.

[0013] This utility model has the following technical effects: By providing a stacked plate assembly between the hinge cup and the hinge arm, and a triangular piece hinged to the stacked plate assembly, the triangular piece is rotatably connected to the stacked plate assembly, the hinge arm, and the hydraulic cylinder respectively. By making the triangular piece rotatably connected to the stacked plate assembly, the hinge arm, and the hydraulic cylinder respectively, the opening and closing action of the hinge can be achieved without the pull bar compared with the prior art. Moreover, the overall structure is greatly simplified compared with the prior art, so as to facilitate assembly and save manufacturing costs. In addition, the stacked plate assembly is also provided with a limiting hole, and a protrusion is provided in the limiting hole. When the hinge cup and the hinge arm rotate, the limiting shaft on the triangular piece slides along the inner wall of the limiting hole. Since there is a protrusion in the limiting hole, when the limiting shaft slides to the protrusion, the force required to pull the hydraulic cylinder is larger. Therefore, the rotation speed between the hinge cup and the hinge arm will be reduced at this time, thereby achieving a damping and buffering effect, which can prevent the cabinet door from colliding with the cabinet body, thus avoiding the impact noise that affects the user experience. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the damping hinge of this utility model;

[0015] Figure 2 This is an exploded view of the structure of the damping hinge of this utility model;

[0016] Figure 3 This is a schematic diagram of the laminated structure of the damping hinge of this utility model.

[0017] The labels and names in the diagram correspond as follows: 1. Hinge cup; 2. Hinge arm; 3. Laminated plate assembly; 4. Triangular piece; 30. Limiting hole; 40. Limiting shaft; 31. Protrusion; 10. U-shaped nail; 100. First connecting end; 101. Second connecting end; 11. Cover plate; 5. Torsion spring assembly; 50. First connecting shaft; 20. First connecting hole; 21. Second connecting hole; 22. Third connecting hole; 32. Connecting nail; 41. Second connecting shaft; 6. Mounting base; 60. Hydraulic cylinder; 42. Third connecting shaft. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a damping hinge, including a hinge cup 1 and a hinge arm 2 rotatably connected to the hinge cup 1. A laminated plate assembly 3 is also provided between the hinge cup 1 and the hinge arm 2. The laminated plate assembly 3 is also provided with a triangular member 4 hinged thereto. The triangular member 4 is connected to the hinge arm 2. The laminated plate assembly 3 has a limiting hole 30, and the triangular member 4 has a limiting shaft 40. The limiting shaft 40 and the limiting hole 30 are in a limiting rotational engagement. A protrusion 31 is provided inside the limiting hole 30. When the hinge cup 1 and the hinge arm 2 rotate, the limiting shaft 40 slides along the inner wall of the limiting hole 30. The hinge arm 2 is also provided with a mounting base 6 connected thereto. A hydraulic cylinder 60 is provided inside the mounting base 6. A third connecting shaft 42 is provided on the triangular member 4, and the third connecting shaft 42 is rotatably connected to the driving end of the hydraulic cylinder 60. By rotatably connecting the triangular member 4 to the laminated plate assembly 3, the hinge arm 2, and the hydraulic cylinder 60 respectively, the rotational opening and closing of the hinge cup 1 and the hinge arm 2 can also be achieved. Compared to existing technologies, this design reduces the use of connecting strips between the stacked panels 3 and the triangular piece 4. Instead, the triangular piece 4 is directly rotatably connected to the stacked panels 3, simplifying the structure, facilitating assembly, and significantly reducing production costs. Furthermore, a protrusion 31 is provided on the inner wall of the limiting hole 30. When the hinge cup 1 and hinge arm 2 rotate to open and close, the limiting shaft 40 on the triangular piece 4 slides along the inner wall of the limiting hole 30. As the hinge cup 1 and hinge arm 2 continue to rotate, when the limiting shaft 40 slides to the protrusion 31, the triangular piece 4 will move forward due to the protrusion of the protrusion 31. This increases the force required for the third connecting shaft 42 to pull the hydraulic cylinder 60, thus reducing the rotational speed between the hinge cup 1 and hinge arm 2. This achieves a damping and buffering effect, preventing collisions between the cabinet door and the cabinet body, and avoiding impact noise that could affect the user experience.

[0020] A U-shaped nail 10 is provided on the hinge cup 1 for limiting and installing therewith. The U-shaped nail 10 includes a first connecting end 100 and a second connecting end 101. The end of the stacked plate group 3 away from the triangular piece 4 is rotatably connected to the first connecting end 100 of the U-shaped nail 10. The hinge cup 1 is also provided with a cover plate 11 rotatably connected therewith. One end of the cover plate 11 is rotatably connected to the second connecting end 101 of the U-shaped nail 10. A torsion spring assembly 5 is also provided between the cover plate 11 and the stacked plate group 3. The torsion spring assembly 5 is provided with a first connecting shaft 50 for limiting and cooperating therewith. The other end of the cover plate 11 is rotatably connected to the first connecting shaft 50.

[0021] The hinge arm 2 is provided with a first connecting hole 20, a second connecting hole 21 and a third connecting hole 22. The first connecting hole 20 on the hinge arm 2 is connected to the first connecting shaft 50 to realize the rotational connection between the hinge arm 2 and the cover plate 11, and then realize the rotational connection between the hinge arm 2 and the hinge cup 1. Since the stacked plate group 3 is formed by overlapping several individual stacked plates, a connecting pin 32 is provided on the stacked plate group 3. By using the connecting pin 32, several individual stacked plates are fixed and overlapped with each other, and the second connecting hole 21 of the hinge arm 2 is limited and connected to the connecting pin 32, thereby realizing the fixed installation of the stacked plate group 3 on the hinge arm 2.

[0022] A second connecting shaft 41 is also provided on the triangular member 4, wherein the second connecting shaft 41 is rotatably connected to the third connecting hole 22 of the hinge arm 2, thereby realizing the rotatable connection between the triangular member 4 and the hinge arm 2.

[0023] The working principle of this utility model is as follows: A stacked plate assembly 3 is provided between the hinge cup 1 and the hinge arm 2. The stacked plate assembly 3 is provided with a triangular member 4 that is hinged to it. The triangular member 4 is rotatably connected to the stacked plate assembly 3, the hinge arm 2, and the hydraulic cylinder 60. By rotatably connecting the triangular member 4 to the stacked plate assembly 3, the hinge arm 2, and the hydraulic cylinder 60, the opening and closing action of the hinge can be achieved without the need for a pull bar, compared with the prior art. Furthermore, the overall structure is greatly simplified compared with the prior art, thus facilitating assembly and saving manufacturing costs. Moreover, the stacked plate assembly 3... A limiting hole 30 is also provided, and a protrusion 31 is provided inside the limiting hole 30. When the hinge cup 1 and the hinge arm 2 rotate, the limiting shaft 40 on the triangular piece 4 slides along the inner wall of the limiting hole 30. Since the limiting hole 30 is provided with the protrusion 31, the force required to pull the hydraulic cylinder 60 when the limiting shaft 40 slides to the protrusion 31 is relatively large. Therefore, the rotation speed between the hinge cup 1 and the hinge arm 2 will be reduced at this time, thereby achieving the effect of damping and buffering, thus avoiding collision between the cabinet door and the cabinet body, thereby avoiding the generation of impact noise and affecting the user experience.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A damping hinge, characterized in that, The device includes a hinge cup and a hinge arm rotatably connected to the hinge cup. A stacked plate assembly is also provided between the hinge cup and the hinge arm. The stacked plate assembly is also provided with a triangular member hinged thereto. The triangular member is connected to the hinge arm. The stacked plate assembly is provided with a limiting hole. The triangular member is provided with a limiting shaft. The limiting shaft and the limiting hole are in a limiting rotational fit. A protrusion is provided inside the limiting hole. When the hinge cup and the hinge arm rotate, the limiting shaft slides along the inner wall of the limiting hole.

2. The damping hinge according to claim 1, characterized in that, The hinge cup is provided with a U-shaped nail for limiting installation therewith. The U-shaped nail includes a first connecting end and a second connecting end. One end of the stacked plate assembly is rotatably connected to the first connecting end of the U-shaped nail.

3. The damping hinge according to claim 2, characterized in that, The hinge cup is also provided with a cover plate that is rotatably connected thereto, and one end of the cover plate is rotatably connected to the second connecting end of the U-shaped nail.

4. The damping hinge according to claim 3, characterized in that, A torsion spring assembly is also provided between the cover plate and the stacked plate group. The torsion spring assembly is provided with a first connecting shaft that limits its movement. The other end of the cover plate is rotatably connected to the first connecting shaft.

5. The damping hinge according to claim 4, characterized in that, The hinge arm is provided with a first connecting hole, a second connecting hole and a third connecting hole, and the first connecting hole is connected to the first connecting shaft.

6. The damping hinge according to claim 4, characterized in that, The stacked plate assembly is provided with a connecting pin, which is limited to the second connecting hole of the hinge arm.

7. The damping hinge according to claim 4, characterized in that, The triangular member is provided with a second connecting shaft, which is rotatably connected to the third connecting hole of the hinge arm.

8. The damping hinge according to claim 1, characterized in that, The hinge arm is also provided with a mounting base connected thereto, and a hydraulic cylinder is provided inside the mounting base. The triangular member is provided with a third connecting shaft, and the third connecting shaft is rotatably connected to the drive end of the hydraulic cylinder.

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