Metal friction damper hinge

Abstract

The utility model provides a metal friction damper hinge, and relates to the technical field of damper hinges. And the number of the hinge assemblies is two, and the two hinge assemblies are symmetrically arranged on the outer surface of the rotating shaft. When in use, the hinge is arranged at the joint of two objects rotating relatively, one hinge body is fixedly connected with the inner side of the trunk, the other hinge body is fixedly connected with the movable cover plate, and the first metal block abuts against the second metal block due to the elastic reset effect of the first spring and the second spring. When the movable cover plate rotates upwards to be opened, the protruding blocks on the surface of the first metal block are located in the grooves in the surface of the second metal block, so that the friction force is large, the movable cover plate connected to the surface of the first metal block does not turn over downwards under the action of no external force, the spare tire cover plate can stay at any angle, and hindrance to personnel is avoided; and the use effect of the metal friction damper hinge is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of damper hinges, in particular to a metal friction damper hinge. Background Art

[0002] A hinge is a mechanical device used to connect two solids and allow relative rotation between them. A hinge can be composed of movable components or foldable materials. Hinges are more commonly installed on cabinets and are mainly classified into stainless steel hinges and iron hinges according to their materials.

[0003] In the prior art, the spare tire cover plate provided in the trunk of an automobile is rotationally connected to the trunk of the automobile through a rotating shaft or a plug pin. When opened, due to limited space, the cover plate cannot be turned upright, resulting in the natural falling of the movable cover plate hindering the personnel when taking items, making it more inconvenient to use. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problem in the prior art that due to limited space in the trunk of an automobile, when taking the spare tire or items, the spare tire cover plate easily falls naturally, hindering the personnel and making it more inconvenient to use, and to propose a metal friction damper hinge.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A metal friction damper hinge, comprising: a rotating shaft; a hinge assembly, the hinge assembly is provided in two groups, and the two groups of hinge assemblies are symmetrically arranged on the outer surface of the rotating shaft. The hinge assembly includes a hinge body, and second push blocks are symmetrically and slidably connected to the inner surface of the hinge body. Second guide rods are respectively fixedly connected to the inner surfaces of the two second push blocks. Second metal blocks are respectively fixedly connected to the outer surfaces of the two second guide rods at positions far from the hinge body. Second springs are respectively sleeved on the outer surfaces of the two second guide rods at positions far from the second metal blocks; a first friction assembly, the first friction assembly is provided in two groups, and the two groups of first friction assemblies are respectively arranged inside the hinge body. The first friction assembly includes an outer cylinder.

[0006] Preferably, an inner cylinder is fixedly connected to the inner surface of the outer cylinder, the inner surface of the inner cylinder is fixedly connected to the outer surface of the rotating shaft, a first spring is sleeved on the outer surface of the inner cylinder, a first push block is arranged between the outer cylinder and the inner cylinder, a plurality of first guide rods are equidistantly fixedly connected to the outer surface of the first push block, first metal blocks are respectively fixedly connected to the outer surfaces of the plurality of first guide rods at positions far from the first push block, the outer surface of the first metal block is in contact with the inner surface of the second metal block, and the first metal block and the second metal block are provided in a matching manner.

[0007] Preferably, a cover is fixedly connected to the outer surface of the outer cylinder, and the outer surfaces of the plurality of first guide rods all penetrate through the outer surface of the cover.

[0008] Preferably, a plurality of sliders are equidistantly and fixedly connected to the outer surface of the first pushing block, and a plurality of chutes are equidistantly formed on the inner surface of the outer cylinder. The chutes and the sliders are arranged in a matching manner.

[0009] Preferably, the outer surface of the second guide rod is slidably connected to the inner surface of the hinge body. The second spring is located inside the hinge body, and the second spring and the second pushing block are arranged in a matching manner.

[0010] Preferably, the inner surface of the hinge body is in contact with the outer surface of the rotating shaft, and the inner surface of the hinge body is rotatably connected to the outer surface of the rotating shaft.

[0011] Preferably, a plurality of limiting blocks are symmetrically and fixedly connected to the outer surface of the rotating shaft, and the outer surfaces of the limiting blocks are rotatably connected to the inner surface of the hinge body.

[0012] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0013] 1. In the present utility model, when in use, the hinge is arranged at the connection of two relatively rotating objects. One hinge body is fixedly connected to the inner side of the trunk, and the other hinge body is fixedly connected to the movable cover plate. Due to the elastic resetting effects of the first spring and the second spring, the first metal block abuts against the second metal block. When the movable cover plate rotates upward to open, the raised block on the surface of the first metal block is located in the groove on the surface of the second metal block, resulting in a relatively large frictional force. Without external force, the movable cover plate connected to its surface will not flip downward, enabling the spare tire cover plate to stay at any angle, avoiding obstruction to personnel, and improving the use effect of the metal friction damper hinge.

[0014] 2. In the present utility model, when in use, by equidistantly forming a plurality of chutes on the inner side of the outer cylinder, when the first pushing block slides, the plurality of sliders fixedly arranged on its surface will slide along the plurality of chutes, playing a role in limiting, avoiding friction between the first pushing block and the outer cylinder and the inner cylinder, and increasing the sliding resistance. Thus, the first metal block can smoothly move outward under the elastic force of the first spring, with high practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of a metal friction damper hinge proposed by the present utility model;

[0016] Figure 2 is a schematic structural diagram of a hinge assembly of a metal friction damper hinge proposed by the present utility model;

[0017] Figure 3 This is a schematic structural view of the first friction assembly of a metal friction damper hinge proposed by the present utility model;

[0018] Figure 4 This is a schematic structural view of the second pushing block of a metal friction damper hinge proposed by the present utility model;

[0019] Figure 5 This is a schematic structural view of the rotating shaft of a metal friction damper hinge proposed by the present utility model.

[0020] Legend: 1. Rotating shaft; 2. First friction assembly; 201. Outer cylinder; 202. Inner cylinder; 203. First spring; 204. Chute; 205. First pushing block; 206. Slide block; 207. Sealing cover; 208. First guide rod; 209. First metal block; 3. Hinge assembly; 301. Hinge body; 302. Second metal block; 303. Second guide rod; 304. Second pushing block; 305. Second spring; 4. Limiting block. Detailed implementation manners

[0021] In order to more clearly understand the above objects, features and advantages of the present utility model, the present utility model will be further described below with reference to the drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited by the specific embodiments disclosed in the following specification.

[0023] Example 1, as Figures 1 - 5As shown in the figure, the utility model provides a metal friction damper hinge, comprising: a rotating shaft 1; a hinge assembly 3, which is provided in two groups and symmetrically arranged on the outer surface of the rotating shaft 1. The hinge assembly 3 includes a hinge body 301. Second pushing blocks 304 are symmetrically and slidably connected to the inner surface of the hinge body 301. Second guide rods 303 are fixedly connected to the inner surfaces of the two second pushing blocks 304 respectively. Second metal blocks 302 are fixedly connected to the outer surfaces of the two second guide rods 303 at positions far from the hinge body 301. Second springs 305 are sleeved on the outer surfaces of the two second guide rods 303 at positions far from the second metal blocks 302; a first friction assembly 2, which is provided in two groups and respectively arranged inside the hinge body 301. The first friction assembly 2 includes an outer cylinder 201. An inner cylinder 202 is fixedly connected to the inner surface of the outer cylinder 201. The inner surface of the inner cylinder 202 is fixedly connected to the outer surface of the rotating shaft 1. A first spring 203 is sleeved on the outer surface of the inner cylinder 202. A first pushing block 205 is arranged between the outer cylinder 201 and the inner cylinder 202. A plurality of first guide rods 208 are fixedly connected to the outer surface of the first pushing block 205 at equal intervals. First metal blocks 209 are fixedly connected to the outer surfaces of the plurality of first guide rods 208 at positions far from the first pushing block 205. The outer surface of the first metal block 209 is in contact with the inner surface of the second metal block 302. The first metal block 209 and the second metal block 302 are provided in a matching manner. The outer surface of the second guide rod 303 is slidably connected to the inner surface of the hinge body 301. The second spring 305 is located inside the hinge body 301 and is provided in a matching manner with the second pushing block 304. The inner surface of the hinge body 301 is in contact with the outer surface of the rotating shaft 1 and is rotatably connected to the outer surface of the rotating shaft 1. A plurality of limiting blocks 4 are symmetrically and fixedly connected to the outer surface of the rotating shaft 1. The outer surface of the limiting block 4 is rotatably connected to the inner surface of the hinge body 301.

[0024] The effect achieved by the entire Embodiment 1 is that when the metal friction damper hinge is used, the hinge is arranged at the connection of two relatively rotating objects. One hinge body 301 is fixedly connected to the inner side of the trunk, and the other hinge body 301 is fixedly connected to the movable cover plate. The second metal block 302 is in the shape of a cover body, and the first metal block 209 is located inside it. The outer cylinder 201 and the inner cylinder 202 are fixedly connected to the rotating shaft 1 through two mounting blocks and bolts at one end. Under the action of elastic reset, the first spring 203 between the outer cylinder 201 and the inner cylinder 202 will always squeeze the first pushing block 205, so that when the outer surfaces of the plurality of first guide rods 208 all slide outward in the inner wall of the cover 207, the outer surface of the first metal block 209 moves towards the inner side of the second metal block 302. At the same time, second springs 305 are symmetrically arranged on the inner side of the hinge body 301. They respectively extend on the inner side of the hinge body 301 and squeeze the two second pushing blocks 304 respectively, so that the two second guide rods 303 will always drive the second metal block 302 to move outward. The opposite surfaces of the first metal block 209 and the second metal block 302 are respectively provided with raised blocks and grooves. When the first metal block 209 and the second metal block 302 move relative to each other, the outer surface of the first metal block 209 will closely fit the inner side of the second metal block 302. When a person flips the spare tire cover plate of the trunk, the hinge body 301 fixedly connected to the movable cover plate will rotate around the rotating shaft 1 as the axis, and the outer surface of the limiting block 4 rotates in the inner wall of the hinge body 301. At the same time, there is intense friction between the first metal block 209 and the second metal block 302, generating a large resistance. However, the force applied by the person is sufficient to overcome the frictional resistance between the two, so that the movable cover plate will rotate upward to open. Then, when the person takes the spare tire in the trunk and they closely contact each other, the raised block on the surface of the first metal block 209 is in the groove on the surface of the second metal block 302, making the frictional force large. So that without the action of external force, the movable cover plate connected to its surface will not flip downward, enabling the spare tire cover plate to stay at any angle, avoiding obstacles to people, and improving the use effect of the metal friction damper hinge.

[0025] Embodiment 2, as Figures 1 - 5 shown, a cover 207 is fixedly connected to the outer surface of the outer cylinder 201. The outer surfaces of the plurality of first guide rods 208 also penetrate through the outer surface of the cover 207. A plurality of sliders 206 are equidistantly fixedly connected to the outer surface of the first pushing block 205. A plurality of chutes 204 are equidistantly opened on the inner surface of the outer cylinder 201. The chutes 204 and the sliders 206 are arranged in a matching manner.

[0026] The effect achieved by the entire Embodiment 2 is that during use, by equidistantly opening a plurality of sliding grooves 204 on the inner side of the outer cylinder 201, when the first pushing block 205 slides, a plurality of sliding blocks 206 fixedly arranged on its surface at equal intervals will slide along the plurality of sliding grooves 204, playing a role of limiting, avoiding friction between the first pushing block 205 and the inner cylinder 202, and increasing the sliding resistance, so that the first metal block 209 can smoothly move outward under the elastic force of the first spring 203, with high practicability.

[0027] Working principle: When the metal friction damper hinge is in use, the hinge is arranged at the connection of two relatively rotating objects. One hinge body 301 is fixedly connected to the inner side of the trunk, and the other hinge body 301 is fixedly connected to the movable cover. The second metal block 302 is in the shape of a cover body, and the first metal block 209 is located inside it. The outer cylinder 201 and the inner cylinder 202 are fixedly connected to the rotating shaft 1 through two mounting blocks and bolts at one end. Under the action of elastic reset, the first spring 203 between the outer cylinder 201 and the inner cylinder 202 will always squeeze the first push block 205, so that when the plurality of first guide rods 208 all slide outwards in the inner wall of the cover 207, the outer surface of the first metal block 209 moves towards the inner side of the second metal block 302. At the same time, second springs 305 are symmetrically arranged on the inner side of the hinge body 301. They extend on the inner side of the hinge body 301 respectively and squeeze the two second push blocks 304 respectively, so that the two second guide rods 303 will always drive the second metal block 302 to move outwards. Protrusion blocks and grooves are respectively arranged on the opposite surfaces of the first metal block 209 and the second metal block 302. When the first metal block 209 and the second metal block 302 move relative to each other, the outer surface of the first metal block 209 will closely fit with the inner side of the second metal block 302. When a person flips the spare tire cover of the trunk, the hinge body 301 fixedly connected to the movable cover will rotate around the rotating shaft 1 as the axis, and the outer surface of the limit block 4 rotates in the inner wall of the hinge body 301. At the same time, there is intense friction between the first metal block 209 and the second metal block 302, generating a large resistance. However, the force applied by the person is sufficient to overcome the frictional resistance between the two, so that the movable cover will rotate upwards to open. Then when the person takes the spare tire in the trunk and they are in close contact with each other, the protrusion block on the surface of the first metal block 209 is in the groove on the surface of the second metal block 302, making the friction force large, so that without external force, the movable cover connected to its surface will not flip downwards, enabling the spare tire cover to stay at any angle and avoiding obstruction to the person. By equidistantly opening a plurality of sliding grooves 204 on the inner side of the outer cylinder 201, when the first push block 205 slides, the plurality of sliding blocks 206 fixedly arranged on its surface at equal intervals will slide along the plurality of sliding grooves 204, playing a role in limiting, avoiding the friction of the first push block 205 between the outer cylinder 201 and the inner cylinder 202 and increasing the sliding resistance, so that the first metal block 209 can smoothly move outwards under the elastic force of the first spring 203, with high practicality.

[0028] The above are only the preferred embodiments of the present utility model, and do not limit the present utility model in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present utility model, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A metal friction damper hinge, characterized in that, Including: A rotating shaft (1); a hinge assembly (3), with two sets of the hinge assemblies (3) symmetrically arranged on the outer surface of the rotating shaft (1). The hinge assembly (3) includes a hinge body (301), and second pushing blocks (304) are symmetrically and slidably connected to the inner surface of the hinge body (301). Second guiding rods (303) are fixedly connected to the inner surfaces of the two second pushing blocks (304) respectively. Second metal blocks (302) are fixedly connected to the outer surfaces of the two second guiding rods (303) at positions away from the hinge body (301). Second springs (305) are sleeved on the outer surfaces of the two second guiding rods (303) at positions away from the second metal blocks (302). Two sets of first friction assemblies (2) are respectively arranged inside the hinge body (301). The first friction assembly (2) includes an outer cylinder (201).

2. The metal friction damper hinge according to claim 1, characterized in that: An inner cylinder (202) is fixedly connected to the inner surface of the outer cylinder (201). The inner surface of the inner cylinder (202) is fixedly connected to the outer surface of the rotating shaft (1). A first spring (203) is sleeved on the outer surface of the inner cylinder (202). A first pushing block (205) is arranged between the outer cylinder (201) and the inner cylinder (202). A plurality of first guiding rods (208) are fixedly connected to the outer surface of the first pushing block (205) at equal intervals. First metal blocks (209) are fixedly connected to the outer surfaces of the plurality of first guiding rods (208) at positions away from the first pushing block (205). The outer surface of the first metal block (209) is in contact with the inner surface of the second metal block (302), and the first metal block (209) and the second metal block (302) are provided in a matching manner.

3. The metal friction damper hinge according to claim 2, wherein: A cover (207) is fixedly connected to the outer surface of the outer cylinder (201), and the outer surfaces of the plurality of first guiding rods (208) also penetrate through the outer surface of the cover (207).

4. The metal friction damper hinge according to claim 2, wherein: A plurality of sliders (206) are fixedly connected to the outer surface of the first pushing block (205) at equal intervals. A plurality of chutes (204) are equally spaced on the inner surface of the outer cylinder (201), and the chutes (204) and the sliders (206) are provided in a matching manner.

5. The metal friction damper hinge according to claim 1, characterized in that: The outer surface of the second guiding rod (303) is slidably connected to the inner surface of the hinge body (301). The second spring (305) is located inside the hinge body (301), and the second spring (305) and the second pushing block (304) are provided in a matching manner.

6. The metal friction damper hinge according to claim 1, wherein: The inner surface of the hinge body (301) is in contact with the outer surface of the rotating shaft (1), and the inner surface of the hinge body (301) is rotatably connected to the outer surface of the rotating shaft (1).

7. The metal friction damper hinge according to claim 1, wherein: A plurality of limiting blocks (4) are symmetrically and fixedly connected to the outer surface of the rotating shaft (1), and the outer surfaces of the limiting blocks (4) are rotatably connected to the inner surface of the hinge body (301).

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