A laptop hinge mechanism

By designing a laptop hinge mechanism that is easy to disassemble, and utilizing the inclined and vertical sliding groove structure of components such as the connecting shaft, ejector block, and spring, the laptop hinge can be quickly maintained, solving the problem of inconvenient maintenance in existing technologies, extending its service life, and improving the user experience.

CN224315358UActive Publication Date: 2026-06-02KUSN DENGHE PRECISION MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUSN DENGHE PRECISION MACHINERY
Filing Date
2025-07-10
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing laptop hinge mechanism is inconvenient to maintain, requiring complete disassembly of the screen and the laptop body to clean or replace parts, which leads to complicated operation, high cost, and may reduce assembly accuracy and affect service life.

Method used

Design a laptop hinge mechanism that enables convenient maintenance of the connection between the connecting cylinder and the computer body through quick disassembly of the connector. The mechanism uses components such as a connecting shaft, ejector block, compression spring, and return spring, and utilizes a slanted groove and vertical slide groove structure to achieve the disassembly and closure of the connecting shaft, facilitating lubrication and maintenance.

Benefits of technology

The maintenance process of the hinge has been simplified, the service life has been extended, the screen opening and closing action is smooth and free, labor costs and operational risks have been reduced, and wear and tear caused by frequent disassembly and assembly has been avoided.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the technical field of laptop hinge mechanisms, specifically a laptop hinge mechanism, including connecting cylinders disposed on opposite sides of a screen connecting base. A connector is slidably connected inside the connecting cylinder, and the connector is used to close the opening of the connecting cylinder. The connector includes a connecting shaft slidably connected inside the connecting cylinder, ejector blocks slidably disposed on opposite sides of the connecting shaft, a compression spring fixedly disposed on one side of the connecting shaft, and a return spring fastened to one side of the connecting shaft. Mounting grooves for slidable connection of the connecting shaft are provided on opposite sides inside the connecting cylinder. The quick disassembly of the connector facilitates maintenance of the connection structure between the connecting cylinder and the computer body, preventing problems such as stiffness and jamming of the hinge due to lack of maintenance over time, thus avoiding malfunctions in the laptop screen opening and closing function.
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Description

Technical Field

[0001] This utility model relates to a laptop hinge mechanism, belonging to the technical field of laptop hinge mechanisms. Background Technology

[0002] The hinge mechanism (also known as the hinge mechanism) of a laptop is a core component that connects the screen and the host. It needs to balance high strength opening and closing, precise damping adjustment and thin and light design. Its structure usually includes components such as metal bracket, gear set, friction plate and spring: the metal bracket is made of high carbon steel or aluminum alloy.

[0003] Currently, the hinge mechanism of most laptops on the market presents significant inconveniences during maintenance. Since the hinge is usually encapsulated inside the connection between the screen bezel and the main body, maintenance personnel must first completely separate the screen from the laptop body to expose the hinge structure for cleaning, lubrication, or replacement of parts. This design complicates the maintenance process, requiring the disassembly of numerous precision cables and fragile clips, and may also affect the sealing of the screen display module.

[0004] For ordinary users, self-maintenance is almost impossible; even professional repair shops significantly increase labor costs due to the time-consuming and high-risk nature of the operation. More importantly, frequent disassembly and assembly may reduce the assembly precision of the hinge structure, thus accelerating wear. This "unfriendly" design makes the hinge the most easily overlooked critical component in the life cycle of a laptop, ultimately leading to many hinge noise, loosening, or even breakage problems that could have been avoided through regular maintenance.

[0005] Therefore, it is urgent to improve the hinge mechanism of laptops to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of this utility model is to provide a laptop hinge mechanism that allows for quick disassembly of the connector, facilitating maintenance of the connection between the connecting cylinder and the computer body. This avoids problems such as stiffness and jamming caused by prolonged neglect of maintenance at the connection point, thereby preventing the laptop screen opening and closing function from failing.

[0007] To achieve the above objectives, the main technical solution adopted by this utility model includes: a laptop computer hinge mechanism, comprising connecting cylinders disposed on opposite sides of a screen connecting base block, wherein a connector is slidably connected inside the connecting cylinder, and the connector is used to close the opening of the connecting cylinder;

[0008] The connector includes a connecting shaft that is slidably connected to the inside of the connecting drum, ejector blocks that are slidably disposed on opposite sides of the connecting shaft, a compression spring that is fixedly disposed on one side of the connecting shaft, and a return spring that is fastened to one side of the connecting shaft.

[0009] The connecting drum has mounting grooves on both opposite sides inside, allowing the connecting shaft to slide.

[0010] Preferably, the diameter of the hole groove on the screen connecting base is smaller than the diameter of the connecting rotating cylinder, and a fixing groove is provided on the outside of the screen connecting base to accommodate one end of the reset spring, and one end of the reset spring is fixedly connected to the inside of the fixing groove.

[0011] Preferably, a snap-fit ​​groove is provided on one side of the connecting shaft, and the side of the return spring away from the fixing groove is snapped into the snap-fit ​​groove.

[0012] Preferably, a telescopic support rod is fixedly provided at the center of one side of the connecting shaft, the compression spring is sleeved on the outside of the telescopic support rod, and the diameter of one end of the telescopic support rod is larger than the diameter of the hole groove opened on the screen connecting base block.

[0013] Preferably, ejector springs are fixedly installed on both sides of the connecting shaft, and the other end of the ejector spring is fixedly connected to one end of the ejector block.

[0014] Preferably, the bottom surface of the mounting groove is set from shallow to deep, and the end of the mounting groove away from the opening is connected to a vertical sliding groove.

[0015] Preferably, the vertical slide groove is vertically arranged, with one end extending to the outside of the connecting rotary drum, and the vertical slide groove is used for guiding the disassembly of the connecting shaft.

[0016] This utility model has at least the following beneficial effects:

[0017] When connecting the connecting shaft to the connecting drum, the installer must first confirm that the connecting shaft is properly engaged with one end of the return spring. Then, the ejector blocks on opposite sides of the connecting shaft are slidably connected to the mounting groove. This allows the connecting shaft to gradually slide against the connecting drum. Because the bottom of the mounting groove is designed from shallow to deep, once the ejector blocks are slidably connected to the groove, they will not return to their original path due to external forces, thus preventing the connecting shaft from springing back. (Note: The last sentence appears to be incomplete and possibly refers to a different topic.) Figure Five A ramp is set at the connection between the inclined groove and the vertical slide groove to further prevent the connecting shaft from springing back. When the ejector block contacts the ramp, the connecting drum and the connecting shaft are connected. At this time, one side of the outside of the connecting drum is flush with one side of the connecting shaft, thus sealing the opening of the connecting drum.

[0018] When it is necessary to disassemble the connecting shaft, the installer can continue to press the connecting shaft to separate it from the ramp and allow it to enter the vertical slide rail. At this time, the elastic energy of the compression spring is used to make the ejector block slide a certain distance in the vertical slide rail. Then the installer pulls out the connecting shaft, so that the connecting shaft can be separated from the connecting drum.

[0019] After the connecting shaft is separated from the connecting cylinder, the installer can drip lubricant into the inside of the connecting cylinder, allowing the lubricant to gradually flow deeper, thereby lubricating and maintaining the connecting mechanism at the connection point, extending its service life, and ensuring that the screen opening and closing action always remains smooth and free. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the connection plane between the screen and the connecting cylinder of a laptop hinge mechanism according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram showing the connection between the connecting cylinder and the connecting shaft of a laptop computer hinge mechanism according to an embodiment of the present invention.

[0023] Figure 3 This is a three-dimensional schematic diagram of a connector for a laptop hinge mechanism according to an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram showing the connection between the connecting shaft and the telescopic support rod of a laptop hinge mechanism in an embodiment of this utility model;

[0025] Figure 5 This is a schematic diagram of the inner side plane of the connecting cylinder of a laptop computer hinge mechanism according to an embodiment of the present invention.

[0026] In the diagram, 1 is the connecting drum; 101 is the fixing groove; 2 is the connecting shaft; 3 is the ejector spring; 5 is the ejector block; 6 is the return spring; 7 is the compression spring; 8 is the telescopic support rod; 9 is the snap-fit ​​groove; 10 is the mounting inclined groove; and 11 is the vertical slide groove. Detailed Implementation

[0027] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0028] Examples, such as Figures 1-5As shown, a laptop hinge mechanism includes a connecting cylinder 1 disposed on opposite sides of a screen connecting base block. A connector is slidably connected inside the connecting cylinder 1. The connector is used to seal the opening of the connecting cylinder 1. By disassembling the connector, it is convenient to maintain the connection structure between the connecting cylinder 1 and the computer body, avoiding problems such as stiffness and jamming caused by long-term neglect of maintenance at the connection point, thereby preventing the laptop screen opening and closing function from failing.

[0029] The connector includes a connecting shaft 2 that is slidably connected to the inside of the connecting drum 1, an ejector block 5 that is slidably disposed on opposite sides of the connecting shaft 2, a compression spring 7 that is fixedly disposed on one side of the connecting shaft 2, and a return spring 6 that is fastened to one side of the connecting shaft 2.

[0030] The connecting drum 1 has mounting grooves 10 on both sides of the inner surface of the connecting drum 1, which accommodate the sliding connection of the ejector blocks 5. The bottom surface of the mounting grooves 10 is set from shallow to deep. The end of the mounting groove 10 away from the opening is connected to a vertical slide groove 11. The vertical slide groove 11 is set vertically and extends to the outside of the connecting drum 1. The vertical slide groove 11 is used to guide the disassembly of the connecting shaft 2. When the connecting shaft 2 is connected to the connecting drum 1, the installer must first confirm whether the connecting shaft 2 is engaged with one end of the return spring 6. Then, the ejector blocks 5 on both sides of the connecting shaft 2 are slidably connected to the mounting grooves 10, so that the connecting shaft 2 can gradually slide with the connecting drum 1. Since the bottom surface of the mounting grooves 10 is set from shallow to deep, after the ejector blocks 5 are slidably connected to the mounting grooves 10, the ejector blocks 5 will not return to their original path due to external forces, thus preventing the connecting shaft 2 from springing back. (Note: The last sentence appears to be incomplete and possibly refers to a different context.) Figure Five A ramp is provided at the connection between the inclined groove 10 and the vertical slide groove 11, which can further prevent the connecting shaft 2 from springing back. When the ejector block 5 contacts the ramp, the connecting drum 1 and the connecting shaft 2 are connected. At this time, one side of the outside of the connecting drum 1 is flush with one side of the connecting shaft 2, thereby sealing the opening of the connecting drum 1.

[0031] When it is necessary to disassemble the connecting shaft 2, the installer can continue to press the connecting shaft 2 to separate it from the ramp and allow it to enter the vertical slide 11 track. At this time, the elastic energy of the compression spring 7 is used to make the ejector block 5 slide a certain distance in the vertical slide 11. Then the installer pulls out the connecting shaft 2, so that the connecting shaft 2 can be separated from the connecting drum 1.

[0032] After the connecting shaft 2 is separated from the connecting drum 1, the installer can drip lubricant into the inside of the connecting drum 1, so that the lubricant can gradually flow deeper, thereby lubricating and maintaining the connecting mechanism at the connection point, extending its service life, and ensuring that the screen opening and closing action always remains smooth and free.

[0033] It should be noted that, since the installation groove 10 is a slope and the groove is opened, it can prevent the compression spring 7 from pushing against the connecting shaft 2 when not disassembled, thus preventing the connecting shaft 2 from rebounding.

[0034] Furthermore, the diameter of the slot on the screen connection base is smaller than the diameter of the connecting cylinder 1. A fixing groove 101 is provided on the outside of the screen connection base to accommodate one end of the reset spring 6. One end of the reset spring 6 is fixedly connected to the inside of the fixing groove 101. A snap-fit ​​groove 9 is provided on one side of the connecting shaft 2. The side of the reset spring 6 away from the fixing groove 101 is snapped into the snap-fit ​​groove 9. Since the diameter of the slot is smaller than that of the connecting cylinder 1, the reset spring 6 can be fixedly connected to the screen connection base through the fixing groove 101, which can provide just the right rotational damping force for the screen. This ensures stable support when the screen is opened and closed, and allows users to experience a smooth and effortless operation when opening the screen.

[0035] Furthermore, a telescopic support rod 8 is fixedly installed at the center of one side of the connecting shaft 2. A compression spring 7 is sleeved on the outside of the telescopic support rod 8. The diameter of one end of the telescopic support rod 8 is larger than the diameter of the slot opened on the screen connecting base block. One end of the telescopic support rod 8 abuts against the surface of the slot, so the compression spring 7 sleeved on the outside of the telescopic support rod 8 can also abut against the slot. Thus, the compression spring 7 can play the role of pushing the connecting shaft 2 out as mentioned above. At the same time, the setting of the telescopic support rod 8 can provide support for the structure.

[0036] Furthermore, ejector springs 3 are fixedly installed on both sides of the connecting shaft 2. The other end of the ejector spring 3 is fixedly connected to one end of the ejector block 5. The ejector spring 3 can provide ejector force to the ejector block 5, so that the ejector block 5 can abut against the bottom surface and the slope of the mounting groove 10.

[0037] In this embodiment, as Figures 1-5 As shown in the figure, the principle of a laptop hinge mechanism provided in this embodiment is as follows:

[0038] When connecting shaft 2 is connected to connecting drum 1, the installer should first confirm that connecting shaft 2 is engaged with one end of return spring 6. Then, the ejector blocks 5 on opposite sides of connecting shaft 2 are slidably connected to mounting groove 10, allowing connecting shaft 2 to gradually slide with connecting drum 1. Because the bottom of mounting groove 10 is designed from shallow to deep, after ejector blocks 5 are slidably connected to mounting groove 10, ejector blocks 5 will not return to their original path due to external forces, thus preventing connecting shaft 2 from springing back. (Note: The last sentence appears to be incomplete and possibly refers to a different context.) Figure Five A ramp is provided at the connection between the inclined groove 10 and the vertical slide groove 11, which can further prevent the connecting shaft 2 from springing back. When the ejector block 5 contacts the ramp, the connecting drum 1 and the connecting shaft 2 are connected. At this time, one side of the outside of the connecting drum 1 is flush with one side of the connecting shaft 2, thereby sealing the opening of the connecting drum 1.

[0039] When it is necessary to disassemble the connecting shaft 2, the installer can continue to press the connecting shaft 2 to separate it from the ramp and allow it to enter the vertical slide 11 track. At this time, the elastic energy of the compression spring 7 is used to make the ejector block 5 slide a certain distance in the vertical slide 11. Then the installer pulls out the connecting shaft 2, so that the connecting shaft 2 can be separated from the connecting drum 1.

[0040] After the connecting shaft 2 is separated from the connecting drum 1, the installer can drip lubricant into the inside of the connecting drum 1, so that the lubricant can gradually flow deeper, thereby lubricating and maintaining the connecting mechanism at the connection point, extending its service life, and ensuring that the screen opening and closing action always remains smooth and free.

[0041] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0042] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0043] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A laptop computer hinge mechanism, comprising connecting cylinders (1) disposed on opposite sides of a screen connecting base block, characterized in that: A connector is slidably connected inside the connecting drum (1), and the connector is used to close the opening of the connecting drum (1); The connector includes a connecting shaft (2) that is slidably connected to the inside of the connecting drum (1), an ejector block (5) that is slidably disposed on opposite sides of the connecting shaft (2), a compression spring (7) that is fixedly disposed on one side of the connecting shaft (2), and a return spring (6) that is fastened to one side of the connecting shaft (2). The connecting drum (1) has mounting grooves (10) on both sides inside to allow the connecting shaft (2) to slide.

2. The laptop computer hinge mechanism according to claim 1, characterized in that: The diameter of the hole groove opened on the screen connection base is smaller than the diameter of the connection cylinder (1). A fixing groove (101) is left on the outside of the screen connection base to accommodate one end of the reset spring (6). One end of the reset spring (6) is fixedly connected to the inside of the fixing groove (101).

3. A laptop computer hinge mechanism according to claim 2, characterized in that: The connecting shaft (2) has a fastening groove (9) on one side, and the return spring (6) is fastened to the fastening groove (9) on the side away from the fixing groove (101).

4. A laptop computer hinge mechanism according to claim 1, characterized in that: A telescopic support rod (8) is fixedly installed at the center of one side of the connecting shaft (2). The compression spring (7) is sleeved on the outside of the telescopic support rod (8). The diameter of one end of the telescopic support rod (8) is larger than the diameter of the hole slot opened on the screen connecting base block.

5. A laptop computer hinge mechanism according to claim 1, characterized in that: The connecting shaft (2) is fixedly provided with ejector springs (3) on both sides, and the other end of the ejector spring (3) is fixedly connected to one end of the ejector block (5).

6. A laptop computer hinge mechanism according to claim 1, characterized in that: The bottom surface of the mounting groove (10) is set from shallow to deep, and the end of the mounting groove (10) away from the opening is connected to a vertical sliding groove (11).

7. A laptop computer hinge mechanism according to claim 6, characterized in that: The vertical slide groove (11) is vertically arranged, with one end extending to the outside of the connecting drum (1). The vertical slide groove (11) is used for guiding the disassembly of the connecting shaft (2).