A notebook rotating shaft with self-lubricating function

Abstract

The utility model discloses a notebook pivot with self -lubricating function belongs to notebook pivot technical field, including axle cylinder shell, its inside is provided with the rotating pivot, adjustable damping cylinder, it is used to adjust the size of rotating damping between pivot and axle cylinder shell, a plurality of bearings are installed in axle cylinder shell, the position of axle cylinder shell is located between bearings and is provided with lubricating pad, and axle cylinder shell both ends are provided with end lubricating cylinder, wherein, lubricating pad and end lubricating cylinder all immerse in lubricating oil liquid, and lubricating pad, end lubricating cylinder and pivot all leave the gap between. Its technical key points are: because the axle cylinder shell is provided with a plurality of lubricating pads, and is provided with end lubricating cylinder in axle cylinder shell end portion, the above-mentioned lubricating pad and end lubricating cylinder inside can all adsorb and store a certain amount of lubricating oil liquid, can in ensuring long -time provision lubricating effect also can not lead to lubricating oil liquid overflow, has good self -lubricating effect.

Description

Technical Field

[0001] This utility model relates to the field of notebook hinge technology, specifically a notebook hinge with self-lubricating function. Background Technology

[0002] The laptop hinge is a crucial component connecting the display to the main unit, using a damping design to enable screen opening and closing and multi-angle fixation. Its material is typically metal or high-strength engineering plastic, requiring wear resistance and fatigue resistance. This directly impacts product lifespan and user experience, making it a core component of laptop structural reliability. Since friction between components is unavoidable during laptop hinge operation, adding lubricant is essential. Lubricant forms a lubricating film, reducing direct metal-to-metal friction, lowering wear rates, and preventing component breakage. It also eliminates noise from dry friction, making opening and closing quieter and smoother. Furthermore, it disperses stress, delays fatigue, significantly extends hinge lifespan, and enhances the user experience.

[0003] The utility model disclosed in CN221668232U is a notebook hinge structure. This utility model has a simple structure and manufactures the hinge assembly as a whole by means of through-hole, which can greatly improve the assembly speed and increase production efficiency. A torsion spring is set to ensure that there is always an opening force when closed, increase the resistance when the hinge rotates, and provide auxiliary force when resetting. The torsion spring ensures that the display part can automatically open to a certain angle or can be separated from the system part by a light touch. With the help of a butterfly spring, the friction between the display bracket and the system bracket in the main hinge axis is ensured, which ensures the flipping effect.

[0004] While the aforementioned laptop hinges provide auxiliary force during reset and sufficient damping during opening to ensure a smooth flipping experience, their structure comes into direct contact with a large area of ​​the structure during rotation, resulting in significant rotational friction. This makes the hinge prone to wear and deformation during use, affecting the overall stability of the hinge structure. Furthermore, the aforementioned structure can only store a very small amount of lubricant, which cannot maintain effective lubrication for an extended period. Adding too much lubricant can cause it to overflow, contaminating the entire hinge structure and even laptop components. Therefore, to address these issues, a self-lubricating laptop hinge is proposed. Utility Model Content

[0005] To address the technical problems of laptop hinges being prone to wear and deformation during use, and the difficulty in maintaining effective lubrication even after adding lubricant, this invention provides a laptop hinge with self-lubricating function.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A self-lubricating notebook hinge includes a housing with a rotating shaft inside; an adjustable damping cylinder fixedly installed at one end of the housing to adjust the rotational damping between the rotating shaft and the housing; several symmetrically arranged bearings are embedded in the housing, the rotating shaft is fixedly connected to the inner ring of the bearings, a lubricating pad is provided between the bearings in the housing, and end lubricating cylinders are provided at both ends of the housing; wherein the lubricating pad and the end lubricating cylinder are all impregnated with lubricating oil, and gaps are left between the lubricating pad, the end lubricating cylinder and the rotating shaft.

[0008] In one possible implementation, the lubricating pad includes an arc-shaped substrate that fits against the inner wall of the shaft housing, with a sponge pad fixedly disposed on its inner wall, the sponge pad containing lubricating oil.

[0009] In one possible implementation, the end lubrication cylinder includes a sealed end cover, the outer wall of which is fitted against the inner wall of the shaft cylinder housing, and a sponge ring is embedded inside the cover, wherein the sponge ring absorbs lubricating oil.

[0010] In one possible implementation, the adjustable damping cylinder includes an outer cylinder fixedly connected to the outer shell of the shaft cylinder, an inner extrusion cylinder slidably disposed inside the outer cylinder, an adjusting nut threadedly connected to the outer end of the inner extrusion cylinder, a mating shaft extending into the inner extrusion cylinder fixedly connected to the end of the rotating shaft, and a damping disc fixedly connected to the end of the mating shaft, wherein a plurality of damping springs are sleeved on the mating shaft, and the damping springs on both sides respectively abut against the inner extrusion cylinder and the damping disc.

[0011] In one possible implementation, the damping spring is made entirely of an elastic metal material, which includes a base cylinder with butterfly springs connected to both ends of the base cylinder, and friction rings are fixedly provided at the outer ends of the butterfly springs.

[0012] In one possible implementation, the shaft sleeve is composed of two symmetrically arranged half-shells connected by bolts, and the mating surface of the half-shells has a groove in which a sealing gasket is embedded.

[0013] In one possible implementation, the inner wall of the semi-shell is fixedly provided with several sets of positioning slots for engaging and fixing the bearing.

[0014] In one possible implementation, a connecting bracket is fixedly connected to the end of the rotating shaft for connecting the screen portion of the laptop computer, and a base frame is fixedly connected to the outer shell of the shaft for connecting the main body portion of the laptop computer.

[0015] In summary, this utility model has the following beneficial technical effects:

[0016] Since the rotating shaft and the shaft housing are connected by bearings, the friction between them can be significantly reduced, extending the life of the rotating shaft and reducing the noise generated when the rotating shaft rotates. In particular, since several lubricating pads are provided inside the shaft housing and an end lubricating cylinder is provided at the end of the shaft housing, both the lubricating pads and the end lubricating cylinder can absorb and store a certain amount of lubricating oil, thus ensuring long-term lubrication without causing the lubricating oil to overflow, and having a good self-lubricating effect.

[0017] Furthermore, in the adjustable damping cylinder, when the adjusting nut is turned, the inner compression cylinder connected to it by threads will move inward or outward accordingly, thereby adjusting the distance between the inner compression cylinder and the damping disc, thus adjusting the degree of compression of the damping spring, thereby changing its friction with the inner compression cylinder and the damping disc, thereby achieving the purpose of adjusting the damping magnitude and meeting different usage requirements. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the adjustable damping cylinder structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the damping spring structure of this utility model.

[0024] In the diagram: 1. Shaft outer shell; 11. Half shell; 12. Sealing gasket; 13. Positioning slot; 2. Rotating shaft; 21. Mating shaft; 22. Damping disc; 3. Adjustable damping cylinder; 31. Outer cylinder; 32. Inner extrusion cylinder; 33. Adjusting nut; 34. Damping spring; 341. Base cylinder; 342. Butterfly spring; 343. Friction ring; 4. Connecting frame; 5. Base frame; 6. Bearing; 7. Lubricating pad; 71. Base plate; 72. Sponge pad; 8. End lubrication cylinder; 81. Sealing end cover; 82. Sponge ring. Detailed Implementation

[0025] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0026] like Figure 1 - Figure 2 As shown, this embodiment provides a self-lubricating notebook hinge, including a shaft housing 1, inside which a rotating shaft 2 is disposed; an adjustable damping cylinder 3, which is fixedly installed at one end of the shaft housing 1 to adjust the magnitude of rotational damping between the rotating shaft 2 and the shaft housing 1; and a plurality of symmetrically arranged bearings 6 are embedded in the shaft housing 1, with the rotating shaft 2 fixedly connected to the inner ring of the bearings 6. Based on the above technical solution, since the rotating shaft 2 and the shaft housing 1 are rotatably connected through the bearings 6, the friction between the two can be significantly reduced, extending the life of the rotating shaft 2 while also reducing the noise generated by the rotating shaft 2 during rotation.

[0027] To further improve the service life of rotating shaft 2, such as Figure 2 - Figure 4 As shown, a lubricating pad 7 is provided inside the shaft housing 1 at the position between the bearings 6, and end lubricating cylinders 8 are provided at both ends of the shaft housing 1, with gaps left between the lubricating pad 7, the end lubricating cylinders 8 and the rotating shaft 2; wherein, the lubricating pad 7 includes an arc-shaped base plate 71 that fits against the inner wall of the shaft housing 1, and a sponge pad 72 is fixedly provided on its inner wall, the sponge pad 72 adsorbing lubricating oil; the end lubricating cylinder 8 includes a sealing end cover 81, the outer wall of which fits against the inner wall of the shaft housing 1, and a sponge ring 82 is embedded inside it, the sponge ring 82 adsorbing lubricating oil.

[0028] like Figure 4 As shown, the adjustable damping cylinder 3 includes an outer cylinder 31 fixedly connected to the outer casing 1 of the shaft cylinder, an inner compression cylinder 32 slidably disposed inside the outer casing 1, an adjusting nut 33 threadedly connected to the outer end of the inner compression cylinder 32, a mating shaft 21 extending into the inner compression cylinder 32 fixedly connected to the end of the rotating shaft 2, and a damping disc 22 fixedly connected to the end of the mating shaft 21. The mating shaft 21 is fitted with several damping springs 34, and the damping springs 34 on both sides abut against the inner compression cylinder 32 and the damping disc 22 respectively. When the adjusting nut 33 is turned, the inner compression cylinder 32 threadedly connected to it will move inward or outward accordingly, thereby adjusting the distance between the inner compression cylinder 32 and the damping disc 22, thereby adjusting the degree of compression of the damping springs 34, thereby changing the friction between them and the inner compression cylinder 32 and the damping disc 22, thereby achieving the purpose of adjusting the damping magnitude and meeting different usage requirements.

[0029] Among them, such as Figure 5As shown, the damping spring 34 is made of elastic metal material and includes a base cylinder 341. Both ends of the base cylinder 341 are connected to butterfly springs 342. Friction rings 343 are fixedly installed on the outer ends of the butterfly springs 342. When the butterfly springs 342 are subjected to compression, they will deform under pressure, thereby increasing the pressure applied to the contact structure by the friction rings 343, thus enhancing the friction between the two and increasing the damping effect that the entire shaft structure can provide. Similarly, when the compression of the butterfly springs 342 decreases, they will recover their deformation, thereby reducing the pressure applied by the friction rings 343, thus reducing the damping magnitude that the entire shaft structure can provide.

[0030] like Figure 2 - Figure 3 As shown, the shaft cylinder outer shell 1 is composed of two symmetrically arranged half-shells 11 connected by bolts. The mating surface of the half-shells 11 has a groove, in which a sealing gasket 12 is embedded. This structural form facilitates the installation and maintenance of the internal structure of the shaft cylinder outer shell 1 through the assembly structure. In addition, several sets of positioning slots 13 are fixedly provided on the inner wall of the half-shells 11, which are used to clamp and fix the bearings 6. This structural form can position and install the bearings 6 to prevent them from shifting and sliding during use, which would cause the support points of the bearings on the rotating shaft 2 to be asymmetrically distributed.

[0031] like Figure 1 As shown, a connecting bracket 4 is fixedly connected to the end of the rotating shaft 2, which is used to connect the screen part of the laptop computer. A base frame 5 is fixedly connected to the shaft housing 1, which is used to connect the main body part of the laptop computer. The above structural scheme provides the necessary structural foundation for the connection between the overall computer shaft structure and other computer components.

[0032] The working principle and usage process of this utility model:

[0033] Since both the sponge pad 72 and the sponge ring 82 can absorb and store a certain amount of lubricating oil, they can ensure long-term lubrication without causing the lubricating oil to overflow, thus having a good self-lubricating effect.

[0034] When it is necessary to adjust the damping of the entire rotating shaft structure, turning the adjusting nut 33 will cause the inner compression cylinder 32, which is threaded to it, to move inward or outward accordingly, thereby adjusting the distance between the inner compression cylinder 32 and the damping disc 22, thereby adjusting the degree of compression of the damping spring 34, and thus changing its friction with the inner compression cylinder 32 and the damping disc 22, thereby achieving the purpose of adjusting the damping and meeting different usage requirements.

[0035] When the butterfly spring 342 is subjected to compression, it will deform under pressure, thereby increasing the pressure applied by the friction ring 343 to the contact structure, thus enhancing the friction between the two and increasing the overall damping effect provided by the rotating shaft structure. Similarly, when the compression of the butterfly spring 342 decreases, it will recover its deformation, thereby reducing the pressure applied by the friction ring 343, thus reducing the overall damping effect provided by the rotating shaft structure.

[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A notebook hinge with self-lubricating function, characterized in that, include: The outer casing of the shaft cylinder (1) has a rotating shaft (2) inside it; An adjustable damping cylinder (3) is fixedly installed at one end of the shaft cylinder housing (1) to adjust the magnitude of the rotational damping between the rotating shaft (2) and the shaft cylinder housing (1); A number of symmetrically arranged bearings (6) are embedded in the shaft cylinder shell (1). The rotating shaft (2) is fixedly connected to the inner ring of the bearing (6). A lubricating pad (7) is provided in the shaft cylinder shell (1) between the bearings (6). Both ends of the shaft cylinder shell (1) are provided with end lubricating cylinders (8). The lubricating pad (7) and the end lubricating cylinder (8) are both soaked in lubricating oil, and there are gaps between the lubricating pad (7), the end lubricating cylinder (8) and the rotating shaft (2).

2. A notebook hinge with self-lubricating function according to claim 1, characterized in that: The lubricating pad (7) includes an arc-shaped substrate (71) that fits against the inner wall of the shaft housing (1), and a sponge pad (72) is fixedly disposed on its inner wall, wherein the sponge pad (72) absorbs lubricating oil.

3. A notebook hinge with self-lubricating function according to claim 1, characterized in that: The end lubrication cylinder (8) includes a sealing end cover (81), the outer wall of which is in contact with the inner wall of the shaft cylinder shell (1), and a sponge ring (82) is embedded inside it, the sponge ring (82) adsorbing lubricating oil.

4. A notebook hinge with self-lubricating function according to claim 1, characterized in that: The adjustable damping cylinder (3) includes an outer cylinder (31) fixedly connected to the outer shell (1) of the shaft cylinder, and an inner extrusion cylinder (32) slidably disposed inside it. An adjusting nut (33) is threadedly connected to the outer end of the inner extrusion cylinder (32). A mating shaft (21) extending into the inner extrusion cylinder (32) is fixedly connected to the end of the rotating shaft (2), and a damping disc (22) is fixedly connected to the end of the mating shaft (21). A plurality of damping springs (34) are sleeved on the mating shaft (21), and the damping springs (34) on both sides abut against the inner extrusion cylinder (32) and the damping disc (22) respectively.

5. A notebook hinge with self-lubricating function according to claim 4, characterized in that: The damping spring (34) is made of elastic metal material and includes a base cylinder (341). Both ends of the base cylinder (341) are connected to butterfly springs (342), and friction rings (343) are fixedly provided on the outer ends of the butterfly springs (342).

6. A notebook hinge with self-lubricating function according to claim 1, characterized in that: The outer shell (1) of the shaft cylinder is composed of two symmetrically arranged half shells (11) connected by bolts, and the splicing surface of the half shells (11) is provided with a groove, in which a sealing gasket (12) is embedded.

7. A notebook hinge with self-lubricating function according to claim 6, characterized in that: The inner wall of the half shell (11) is fixedly provided with several sets of positioning slots (13), which are used to lock and fix the bearing (6).

8. A notebook hinge with self-lubricating function according to claim 1, characterized in that: The rotating shaft (2) is fixedly connected to a connecting frame (4) for connecting the screen part of the laptop computer, and the shaft housing (1) is fixedly connected to a base frame (5) for connecting the main body part of the laptop computer.

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