Damping hinge

Abstract

The utility model discloses a damping hinge, including hinged subassembly, and with first hinge leaf and second hinge leaf of hinged subassembly rotation connection respectively, hinged subassembly includes first connecting rod group, hinge shaft and second connecting rod group, first connecting rod group with second connecting rod group are passed through hinge shaft rotation connection, first hinge leaf is close to the one end of hinge shaft and is provided with first mounting arm symmetry, and second hinge leaf is close to the one end of hinge shaft and is provided with second mounting arm symmetry. This damping hinge, rotates smooth, and stable structure, and assembly is simple, can satisfy the use demand of multiple scenes.

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 is a mechanical device used to connect two objects and allow relative rotation between them. It is widely used in furniture, doors and windows, electronic equipment, and other fields. Existing damping hinges have the following shortcomings: complex damping structure design, difficult assembly, and insufficient precision in limiting movement during rotation, affecting ease of use and reliability. Utility Model Content

[0003] Therefore, the purpose of this utility model is to provide a damping hinge that rotates smoothly, has a stable structure, is easy to assemble, and can meet the needs of various scenarios.

[0004] The objective of this utility model is achieved through the following technical solution: A damping hinge includes a hinge assembly and a first hinge leaf and a second hinge leaf rotatably connected to the hinge assembly. The hinge assembly includes a first link group, a hinge shaft, and a second link group. The first link group and the second link group are rotatably connected via the hinge shaft. A first mounting arm is symmetrically provided at one end of the first hinge leaf near the hinge shaft, and a second mounting arm is symmetrically provided at one end of the second hinge leaf near the hinge shaft.

[0005] Furthermore, the first hinge leaf has a first receiving groove, which provides movement space for the first linkage assembly; the second hinge leaf has a second receiving groove, which provides movement space for the second linkage assembly. Both the first hinge page and the second hinge page are provided with mutually cooperating positioning grooves, which provide movement space for the hinge shaft; the first link group includes two sets of first connecting arms, and the second link group includes two sets of second connecting arms, with the first connecting arms and the second connecting arms being connected to the hinge shaft at intervals; Both the first mounting arm and the second mounting arm are provided with mounting holes.

[0006] Furthermore, both the first connecting arm and the second connecting arm are provided with a fixing part, and each fixing part is provided with a pin hole. The hinge shaft passes through the pin hole of the fixing part and connects to the fixing part, thereby making the first connecting arm and the second connecting arm rotatably connected through the hinge shaft.

[0007] Furthermore, the first connecting arm and the second connecting arm are also provided with movable parts. The movable part on the first connecting arm is rotatably connected to the first hinge page, and the movable part on the second connecting arm is rotatably connected to the second hinge page. The bottom of the first receiving groove is provided with a first limiting groove for receiving the movable part of the first connecting arm, and a first positioning post is provided in the first limiting groove. The bottom of the second receiving groove is provided with a second limiting groove for accommodating the movable part of the second connecting arm, and a second positioning post is provided in the second limiting groove.

[0008] Furthermore, the first linkage group also includes a first movable shaft, and the second linkage group also includes a second movable shaft. The movable part on each of the first connecting arm and the second connecting arm is provided with a first shaft hole. The first movable shaft passes through the first shaft hole on the movable part of the first connecting arm and is rotatably connected to the first hinge page; The second movable shaft passes through the first shaft hole on the movable part of the second connecting arm and is rotatably connected to the second hinge page.

[0009] Furthermore, the first limiting strip grooves are provided on the groove walls on the left and right sides of the first receiving groove for the first movable shaft to slide, and the two ends of the first movable shaft are respectively slidably disposed in the first limiting strip grooves. The second accommodating groove has second limiting strip grooves on the left and right sides of the groove wall for the second movable shaft to slide, and the two ends of the second movable shaft are respectively slidably disposed in the second limiting strip grooves.

[0010] Furthermore, the first connecting arm and the second connecting arm are also provided with rotating parts, the rotating parts on the first connecting arm are rotatably connected to the second hinge page, and the rotating parts on the second connecting arm are rotatably connected to the first hinge page.

[0011] Furthermore, the first connecting rod assembly also includes a first rotating shaft and a plurality of first damping rings, and the second connecting rod assembly also includes a second rotating shaft and a plurality of second damping rings. The rotating parts on the first connecting arm and the second connecting arm are both provided with second shaft holes. The first rotating shaft passes through the second shaft hole of the rotating part on the first connecting arm and is rotatably connected to the second hinge page; The second rotating shaft passes through the second shaft hole on the rotating part of the second connecting arm and is rotatably connected to the first hinge page; Each of the first damping rings is sleeved on the first rotating shaft and located in the second shaft hole on the first connecting arm; Each of the second damping rings is sleeved on the second rotating shaft and located in the second shaft hole on the first connecting arm.

[0012] Furthermore, a first through hole is provided on the first hinge page near the opening of the first receiving groove along the axial direction of the second rotating shaft. The first through hole extends toward the first mounting arm. Both ends of the second rotating shaft are inserted into the first through hole, and one end of the second rotating shaft is threadedly connected to the first through hole. The second hinge page has a second through hole at the position near the opening of the second receiving groove along the axial direction of the first rotating shaft. The second through hole extends towards the second mounting arm. Both ends of the first rotating shaft are inserted into the second through hole, and one end of the first rotating shaft is threadedly connected to the second through hole.

[0013] Furthermore, the hinge shaft includes a shaft body, a shaft cap, and two sets of damping assemblies sleeved on the shaft body. Each damping assembly includes a first oil-lubricating washer, several spring washers, and a second oil-lubricating washer. A first flat position is provided on the inner wall of the pin hole of the first connecting arm, and a second flat position is provided on the shaft body to cooperate with the first flat position. A fixing nut is connected to the end of the shaft body away from the shaft cap. One set of damping assemblies is disposed near the shaft cap, and the other set of damping assemblies is disposed near the fixing nut.

[0014] The beneficial effects of this utility model are: This utility model forms a hinge assembly consisting of a first connecting rod group, a second connecting rod group, and a hinge shaft, which, together with the first hinge leaf and the second hinge leaf, forms a stable rotational connection structure that can withstand large loads and has high structural strength.

[0015] The first and second receiving slots provide movement space for the linkage assembly, and the positioning slot provides movement space for the hinge shaft, making the movement of each component more orderly, avoiding mutual interference, and ensuring smooth rotation.

[0016] The design of limiting structures such as the first limiting groove, the second limiting groove, the first limiting groove, and the second limiting groove limits the movement of each component, ensuring the reliability and accuracy of the rotation process.

[0017] The first and second damping rings are designed to provide stable damping force during rotation by utilizing the friction between them and the shaft, resulting in smooth, shock-free rotation and improved user experience.

[0018] The damping assembly on the hinge shaft, through the cooperation of the first oil-lubricated washer, the spring washer and the second oil-lubricated washer, further enhances the damping effect and ensures stable damping performance that does not easily decrease significantly over time.

[0019] The overall structure is reasonably designed, easy to assemble, and the connection between the components is stable, making it suitable for a wide range of applications. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the damping hinge of this utility model; Figure 2 This is a schematic diagram of the damping hinge of this utility model from another perspective. Figure 3 This is an exploded structural diagram of the damping hinge of this utility model; Figure 4 This is a schematic diagram of the hinge assembly of this utility model; Figure 5 This is a schematic diagram of the hinge assembly of this utility model from another perspective; Figure 6 This is an exploded structural diagram of the hinge assembly of this utility model; Figure 7 This is a schematic diagram of the structure of the first connecting arm of this utility model; Explanation of reference numerals in the attached figures: 10-First hinge leaf, 11-First receiving groove, 12-Positioning groove, 13-First mounting arm, 131-Mounting hole, 14-First limiting groove, 141-First positioning post; 15-First limiting strip groove, 16-First through hole, 20-Second hinge leaf, 21-Second receiving groove, 22-Second mounting arm, 23-Second limiting groove, 231-Second positioning post; 24-Second limiting strip groove, 25-Second through hole, 30-Hinged assembly, 40-First connecting rod assembly, 41-First connecting arm, 411-Fixed part, 412-Moving part, 413-Rotating part, 414-Pin hole, 415-First shaft hole, 416-Second shaft hole, 42-First movable shaft, 43-First rotating shaft, 44-First damping ring 50 - Second linkage assembly, 51 - Second connecting arm, 52 - Second movable shaft, 53 - Second rotating shaft, 54 - Second damping ring, 60-Hinge shaft, 61-Shaft body, 62-Shaft cap, 63-Damping assembly, 631-First oil-lubricated washer, 632-Spring washer, 633-Second oil-lubricated washer, 64-Fixing nut. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] like Figure 1 and Figure 2 As shown, this embodiment of the present invention provides a damping hinge, including a hinge assembly 30, a first hinge leaf 10, and a second hinge leaf 20. The first hinge leaf 10 and the second hinge leaf 20 are respectively connected to the hinge assembly 30. The hinge assembly 30, as the core rotational connection component, is responsible for realizing the relative rotation between the first hinge leaf 10 and the second hinge leaf 20. The first hinge leaf 10 and the second hinge leaf 20 are used for connection and fixation to an external structure.

[0025] like Figure 3 As shown, the first hinge page 10 has a first receiving groove 11, which provides movement space for the first link group 40, so that the first link group 40 has enough space to move during rotation and avoids interference with the first hinge page 10.

[0026] The second hinge page 20 has a second receiving groove 21, which provides movement space for the second linkage group 50 and ensures the smooth movement of the second linkage group 50.

[0027] Both the first hinge page 10 and the second hinge page 20 are provided with mutually cooperating positioning grooves 12. The positioning grooves 12 provide movement space for the hinge shaft 60, limit the range of motion of the hinge shaft 60, and ensure that its position is relatively stable during rotation.

[0028] The hinge assembly 30 includes a first link group 40, a second link group 50, and a hinge shaft 60. The first link group 40 and the second link group 50 are rotatably connected via the hinge shaft 60, making the rotation of the first hinge leaf 10 and the second hinge leaf 20 smoother and providing better support. A first mounting arm 13 is symmetrically arranged at one end of the first hinge leaf 10 near the hinge shaft 60, and a second mounting arm 22 is symmetrically arranged at one end of the second hinge leaf 20 near the hinge shaft 60. The mounting arms are used for installation and fixation to the external structure, and the symmetrical arrangement ensures balanced force distribution after installation. Both the first mounting arm 13 and the second mounting arm 22 are provided with mounting holes 131, which can be used to connect to the external structure with screws or other fasteners to achieve fixed installation of the hinge.

[0029] like Figure 4 and Figure 5 As shown, the first linkage group 40 includes two sets of first connecting arms 41, and the second linkage group 50 includes two sets of second connecting arms 51. The first connecting arms 41 and the second connecting arms 51 are rotatably connected to the hinge shaft 60 at intervals. This interval arrangement makes the linkage group structure more compact and flexible in rotation.

[0030] like Figure 6 and Figure 7 As shown, both the first connecting arm 41 and the second connecting arm 51 are provided with a fixed part, a movable part, and a rotating part.

[0031] The fixing part 411 of the first connecting arm 41 has a pin hole, and the fixing part of the second connecting arm 51 also has a pin hole. The hinge shaft 60 passes through the pin hole 414 of the first connecting arm 41 and the pin hole of the second connecting arm 51 respectively, and connects the first connecting arm 41 and the second connecting arm 51. The first connecting arm 41 and the second connecting arm 51 are connected by the hinge shaft 60, thereby realizing the rotation of the first link group 40 and the second link group 50 around the hinge shaft 60.

[0032] The movable part 412 on the first connecting arm 41 is rotatably connected to the first hinge page 10, and the movable part on the second connecting arm 51 is rotatably connected to the second hinge page 20. The movable part serves as the rotatable connection between the connecting arm and the hinge page, ensuring the flexibility of rotation between the linkage assembly and the hinge page.

[0033] The bottom of the first receiving groove 11 is provided with a first limiting groove 14 for accommodating the movable part 412 on the first connecting arm 41. A first positioning post 141 is provided in the first limiting groove 14. The bottom of the second receiving groove 21 is provided with a second limiting groove 23 for accommodating the movable part of the second connecting arm 51. A second positioning post 231 is provided in the second limiting groove 23. The positioning post separates the two sets of first connecting arms 41 and the two sets of second connecting arms 51. The limiting groove restricts the range of motion of the movable part to prevent it from rotating excessively or deviating, and ensures the stability of rotation.

[0034] The rotating part 413 on the first connecting arm 41 is rotatably connected to the second hinge page 20, and the rotating part on the second connecting arm 51 is rotatably connected to the first hinge page 10. The rotating part further enhances the stability of the connection between the connecting rod assembly and the hinge page and the flexibility of rotation.

[0035] The first linkage group 40 also includes a first movable shaft 42, a first rotating shaft 43 and a plurality of first damping rings 44, and the second linkage group 50 also includes a second movable shaft 52, a second rotating shaft 53 and a plurality of second damping rings 54.

[0036] Each of the first connecting arms 41 and the second connecting arm 51 has a first shaft hole on its movable part. The first movable shaft 42 passes through the first shaft hole 415 of the movable part 412 on the first connecting arm 41 and is rotatably connected to the first hinge page 10. The second movable shaft 52 passes through the first shaft hole of the movable part on the second connecting arm 51 and is rotatably connected to the second hinge page 20. The movable shaft, as a rotating connector, realizes the rotational connection between the movable part and the hinge page.

[0037] The left and right sides of the first receiving groove 11 are provided with first limiting grooves 15 for the sliding of the first movable shaft 42. The two ends of the first movable shaft 42 are respectively slidably disposed in the first limiting grooves 15. The left and right sides of the second receiving groove 21 are provided with second limiting grooves 24 for the sliding of the second movable shaft 52. The two ends of the second movable shaft 52 are respectively slidably disposed in the second limiting grooves 24. The limiting grooves guide and limit the sliding of the movable shaft, ensuring that the linkage assembly has a precise trajectory during movement and avoiding wobbling.

[0038] Both the first connecting arm 41 and the second connecting arm 51 have a second shaft hole on their rotating parts. The first rotating shaft 43 passes through the second shaft hole 416 of the rotating part 413 on the first connecting arm 41 and is rotatably connected to the second hinge page 20. The second rotating shaft 53 passes through the second shaft hole of the rotating part on the second connecting arm 51 and is rotatably connected to the first hinge page 10.

[0039] Each first damping ring 44 is fitted into the second shaft hole 416 on the first rotating shaft 43 and located on the second connecting arm 41. Each second damping ring 54 is fitted into the second shaft hole on the second rotating shaft 53 and located on the second connecting arm 51. The damping rings are made of a material with a certain coefficient of friction. When the rotating shaft rotates, friction is generated between the damping ring and the rotating shaft, thereby providing damping force for the rotation process, making the rotation smoother and more buffered, and improving the user experience.

[0040] like Figure 3As shown, the first hinge page 10 has a first through hole 16 near the opening of the first receiving groove 11 along the axial direction of the second rotating shaft 53. The first through hole 16 extends towards the first mounting arm 13. Both ends of the second rotating shaft 53 are inserted into the first through hole 16, and one end of the second rotating shaft 53 is threadedly connected to the first through hole 16. The second hinge page 20 has a second through hole 25 near the opening of the second receiving groove 21 along the axial direction of the first rotating shaft 43. The second through hole 25 extends towards the second mounting arm 22. Both ends of the first rotating shaft 43 are inserted into the second through hole 25, and one end of the first rotating shaft 43 is threadedly connected to the second through hole 25. The through holes limit and support the rotating shaft, preventing axial movement during operation and ensuring the stability of the rotating shaft. The threaded connection further enhances the connection's firmness.

[0041] like Figure 6 As shown, the hinge shaft 60 includes a shaft body 61, a shaft cap 62, and two sets of damping components 63 mounted on the shaft body 61. Each damping component 63 includes a first oil-absorbing washer 631, two sets of spring washers 632, and a second oil-absorbing washer 633. A first flat position is provided on the inner wall of the pin hole 414 of the first connecting arm 41, and a second flat position is provided on the shaft body 61 to mate with the first flat position. A fixing nut 64 is connected to the end of the shaft body 61 away from the shaft cap 62. One set of damping components 63 is located near the shaft cap 62, and the other set of damping components 63 is located near the fixing nut 64. The oil-absorbing washer can store a certain amount of lubricating oil, which seeps out when the hinge shaft 60 rotates, reducing friction. The spring washers provide elastic pressure, making the contact between the washers tighter, thereby producing a stable damping effect and further improving the overall damping and buffering performance. The flat position design prevents relative rotation between the shaft body and the first connecting arm, ensuring the stability of the connection.

[0042] The working process of the damping hinge of this utility model is as follows: When the first hinge leaf 10 and the second hinge leaf 20 rotate relative to each other, the first link assembly 40 and the second link assembly 50 rotate around the hinge axis 60. At the same time, the movable parts on the first connecting arm 41 and the second connecting arm 51 slide in the limiting strip groove through the movable shaft, and the rotating parts rotate on the hinge leaf through the rotating shaft. During this process, friction is generated between the first damping ring 44 and the first rotating shaft 43, and between the second damping ring 54 and the second rotating shaft 53, providing damping force. At the same time, the damping assembly 63 on the hinge axis 60 also provides damping through the friction between the various washers. Together, they make the rotation process smooth and shock-free, achieving a good damping and buffering effect.

[0043] The damping hinge structure of this utility model is reasonable, has a stable damping effect, is easy to assemble, and can be widely used in various scenarios that require rotational connection and damping buffer.

[0044] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.

Claims

1. A damping hinge, characterized in that: The device includes a hinge assembly and a first hinge page and a second hinge page rotatably connected to the hinge assembly. The hinge assembly includes a first link group, a hinge shaft, and a second link group. The first link group and the second link group are rotatably connected through the hinge shaft. A first mounting arm is symmetrically provided at one end of the first hinge page near the hinge shaft, and a second mounting arm is symmetrically provided at one end of the second hinge page near the hinge shaft.

2. The damping hinge according to claim 1, characterized in that: The first hinge leaf has a first receiving groove, which provides movement space for the first linkage assembly; the second hinge leaf has a second receiving groove, which provides movement space for the second linkage assembly. Both the first hinge page and the second hinge page are provided with mutually cooperating positioning grooves, which provide movement space for the hinge shaft; the first link group includes two sets of first connecting arms, and the second link group includes two sets of second connecting arms, with the first connecting arms and the second connecting arms being connected to the hinge shaft at intervals; Both the first mounting arm and the second mounting arm are provided with mounting holes.

3. The damping hinge according to claim 2, characterized in that: Both the first connecting arm and the second connecting arm are provided with a fixing part, and each fixing part is provided with a pin hole. The hinge shaft passes through the pin hole of the fixing part and connects to the fixing part, so that the first connecting arm and the second connecting arm are rotatably connected through the hinge shaft.

4. The damping hinge according to claim 2, characterized in that: The first connecting arm and the second connecting arm are also provided with movable parts. The movable part on the first connecting arm is rotatably connected to the first hinge page, and the movable part on the second connecting arm is rotatably connected to the second hinge page. The bottom of the first receiving groove is provided with a first limiting groove for receiving the movable part of the first connecting arm, and a first positioning post is provided in the first limiting groove. The bottom of the second receiving groove is provided with a second limiting groove for accommodating the movable part of the second connecting arm, and a second positioning post is provided in the second limiting groove.

5. The damping hinge according to claim 4, characterized in that: The first link assembly further includes a first movable shaft, and the second link assembly further includes a second movable shaft. The movable parts on each of the first connecting arms and the second connecting arms are provided with a first shaft hole. The first movable shaft passes through the first shaft hole on the movable part of the first connecting arm and is rotatably connected to the first hinge page; The second movable shaft passes through the first shaft hole on the movable part of the second connecting arm and is rotatably connected to the second hinge page.

6. The damping hinge according to claim 5, characterized in that: The first accommodating groove has first limiting strip grooves on the left and right sides of the groove wall for the first movable shaft to slide, and the two ends of the first movable shaft are respectively slidably disposed in the first limiting strip grooves. The second accommodating groove has second limiting strip grooves on the left and right sides of the groove wall for the second movable shaft to slide, and the two ends of the second movable shaft are respectively slidably disposed in the second limiting strip grooves.

7. The damping hinge according to claim 2, characterized in that: The first connecting arm and the second connecting arm are further provided with rotating parts. The rotating parts on the first connecting arm are rotatably connected to the second hinge page, and the rotating parts on the second connecting arm are rotatably connected to the first hinge page.

8. The damping hinge according to claim 7, characterized in that: The first connecting rod assembly further includes a first rotating shaft and a plurality of first damping rings, and the second connecting rod assembly further includes a second rotating shaft and a plurality of second damping rings. The rotating parts on the first connecting arm and the second connecting arm are both provided with second shaft holes. The first rotating shaft passes through the second shaft hole of the rotating part on the first connecting arm and is rotatably connected to the second hinge page; The second rotating shaft passes through the second shaft hole on the rotating part of the second connecting arm and is rotatably connected to the first hinge page; Each of the first damping rings is sleeved on the first rotating shaft and located in the second shaft hole on the first connecting arm; Each of the second damping rings is sleeved on the second rotating shaft and located in the second shaft hole on the first connecting arm.

9. The damping hinge according to claim 8, characterized in that: The first hinge page has a first through hole at the position near the opening of the first receiving groove along the axial direction of the second rotating shaft. The first through hole extends towards the first mounting arm. Both ends of the second rotating shaft are inserted into the first through hole, and one end of the second rotating shaft is threadedly connected to the first through hole. The second hinge page has a second through hole at the position near the opening of the second receiving groove along the axial direction of the first rotating shaft. The second through hole extends towards the second mounting arm. Both ends of the first rotating shaft are inserted into the second through hole, and one end of the first rotating shaft is threadedly connected to the second through hole.

10. The damping hinge according to claim 3, characterized in that: The hinge shaft includes a shaft body, a shaft cap, and two sets of damping assemblies sleeved on the shaft body. Each damping assembly includes a first oil-lubricating washer, several spring washers, and a second oil-lubricating washer. A first flat position is provided on the inner wall of the pin hole of the first connecting arm. A second flat position is provided on the shaft body to cooperate with the first flat position. A fixing nut is connected to the end of the shaft body away from the shaft cap. One set of damping assemblies is located close to the shaft cap, and the other set of damping assemblies is located close to the fixing nut.

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