A notebook screen opening and closing hinge assembly

Abstract

The utility model discloses a notebook screen opening and closing pivot subassembly, including L1 support, L2 support, R1 support, R2 support, arc support L and arc support R, arc support L sets up between L1 support and L2 support, arc support R sets up between R1 support and R2 support, the utility model discloses a rigid installation axle is connected the connecting sleeve of left and right sides and makes arc support L and arc support R forced synchronous rotation in the opening and closing process, effectively avoided the left and right deviation phenomenon of traditional double -sided pivot because of assembly error or abrasion, ensure that screen opens and shuts steadily, no shaking, and pivot subassembly adopts L1 support, L2 support, R1 support and R2 support four point support structure, and the curved surface support design of combining arc support, the external bending moment is effectively converted into the compression stress along the support axial in the screen opening and closing process, significantly reduces local stress concentration, prolongs the service life of pivot, improves overall structure rigidity.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, and more specifically, to a laptop screen opening and closing hinge assembly. Background Technology

[0002] As laptops become thinner, lighter, and more reliable, the screen hinge assembly, as a key mechanical component connecting the display and the host, directly impacts the user experience. Traditional hinges often employ a single-sided hinge structure or a simple dual-axis linkage design, which suffers from problems such as unstable opening and closing, asynchronous left and right opening and closing, easy misalignment, and loosening after long-term use. Especially during frequent opening and closing, the hinge must withstand repeated bending moment loads, which can easily lead to localized stress concentration, accelerated wear, and reduced structural lifespan.

[0003] In the existing technology, some shafts achieve angle self-locking function through friction plates or gear meshing, but they generally have defects such as complex structure, high assembly precision requirements, high cost or unsmooth feel. Most shaft components lack an effective load distribution mechanism, resulting in the force being concentrated in a local area, reducing the overall rigidity and durability. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing a laptop screen opening and closing hinge assembly. It solves the problem that some hinges achieve angle self-locking function through friction plates or gear meshing, but generally suffer from defects such as complex structure, high assembly precision requirements, high cost, or unsmooth feel. Most hinge assemblies lack an effective load distribution mechanism, resulting in the force being concentrated in a local area, which reduces the overall rigidity and durability.

[0005] To achieve the above objectives, this utility model provides a laptop screen opening and closing hinge assembly, including an L1 bracket, an L2 bracket, an R1 bracket, an R2 bracket, an arc bracket L, and an arc bracket R. The arc bracket L is disposed between the L1 bracket and the L2 bracket, and the arc bracket R is disposed between the R1 bracket and the R2 bracket. The arc bracket L and the arc bracket R (6) are both fixedly connected to a rotating bracket, and the rotating bracket is fixedly connected to a connecting sleeve. The connecting sleeve is provided with an installation shaft.

[0006] Preferably, the L1 bracket, L2 bracket, R1 bracket and R2 bracket are all fixedly connected to the mounting sleeve, and the two ends of the mounting shaft pass through the mounting sleeves on the corresponding sides to drive the arc bracket L and the arc bracket R to rotate synchronously.

[0007] Preferably, both the arc bracket L and the arc bracket R are provided with stamped brackets, which are integrally formed on the arc bracket L and the arc bracket R by a stamping process.

[0008] Preferably, two protrusions are symmetrically fixedly connected on the mounting shaft. The L1 bracket, L2 bracket, R1 bracket and R2 bracket are all provided with limiting grooves that match the protrusions. The protrusions slide along the limiting grooves and generate frictional resistance due to the squeezing of the groove wall at a preset angle position, thereby achieving angle self-locking.

[0009] Preferably, the arc brackets L and R are made of stainless steel and have a wear-resistant decorative layer on their surface; the remaining metal parts are surface treated to improve corrosion resistance and hardness.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a rigid mounting shaft that connects the connecting sleeves on both sides, the arc bracket L and arc bracket R are forced to rotate synchronously during the opening and closing process. This effectively avoids the left and right offset phenomenon caused by assembly errors or wear of traditional double-sided hinges, ensuring that the screen opens and closes smoothly and without shaking. The hinge assembly adopts a four-point support structure of L1 bracket, L2 bracket, R1 bracket and R2 bracket. Combined with the curved support design of the arc bracket, the external bending moment is effectively converted into compressive stress along the axis of the bracket during the opening and closing process of the screen. This significantly reduces local stress concentration, extends the service life of the hinge, and improves the overall structural rigidity.

[0011] Symmetrically arranged protrusions on the mounting axis cooperate with the limiting grooves on the L1, L2, R1, and R2 brackets. When the screen rotates to a preset angle, the protrusions and groove walls generate normal extrusion force, forming a frictional self-locking mechanism. This prevents the screen from automatically drooping under gravity, achieving stable stopping at multiple angles, providing a smooth operating feel and precise positioning. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the connection structure between the L1 bracket and the L2 bracket in this utility model; Figure 2 This is a schematic diagram of the connection structure between the R1 bracket and the R2 bracket in this utility model; Figure 3 This is an exploded view of the L1 bracket and L2 bracket in this utility model; Figure 4 This is an exploded view of the R1 bracket and the R2 bracket in this utility model; Figure 5 This is a diagram showing the state of the present invention after rotation.

[0013] The meanings of the labels in the diagram are as follows: 1. L1 bracket; 2. L2 bracket; 3. R1 bracket; 4. R2 bracket; 5. Arc bracket L; 6. Arc bracket R; 7. Stamped bracket; 8. Mounting shaft; 9. Mounting sleeve; 10. Rotating bracket; 11. Connecting sleeve; 12. Protrusion. Detailed Implementation

[0014] 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.

[0015] Please see Figures 1-5 This embodiment provides a laptop screen hinge assembly, including an L1 bracket 1, an L2 bracket 2, an R1 bracket 3, an R2 bracket 4, an arc-shaped bracket L5, and an arc-shaped bracket R6. Considering the common drawbacks such as complex structures, high assembly precision requirements, high costs, or uneven feel, most hinge assemblies lack an effective load distribution mechanism, resulting in concentrated stress in localized areas, reducing overall rigidity and durability. The arc-shaped bracket L5 is positioned between the L1 bracket 1 and the L2 bracket 2, and the arc-shaped bracket R6 is positioned between the R1 bracket 3 and the R2 bracket 4. Both the arc-shaped bracket L5 and the arc-shaped bracket R6 are fixedly connected to a rotating bracket 10. The rotating bracket 10 is fixedly connected to the connecting sleeve 11, and the connecting sleeve 11 is provided with the mounting shaft 8. The L1 bracket 1, L2 bracket 2, R1 bracket 3 and R2 bracket 4 are all fixedly connected to the mounting sleeve 9. The two ends of the mounting shaft 8 pass through the mounting sleeve 9 on the corresponding side to drive the arc bracket L5 and arc bracket R6 to rotate synchronously. Two protrusions 12 are symmetrically fixedly connected on the mounting shaft 8. The L1 bracket 1, L2 bracket 2, R1 bracket 3 and R2 bracket 4 are all provided with limiting grooves that match the protrusions 12. The protrusions 12 slide along the limiting grooves and generate frictional resistance due to the groove wall compression at the preset angle position to achieve angle self-locking.

[0016] In summary, the improvement of this embodiment lies in: By setting a rigid mounting shaft 8 to connect the connecting sleeves 11 on both sides, the arc bracket L5 and arc bracket R6 are forced to rotate synchronously during opening and closing, effectively avoiding the left and right offset phenomenon caused by assembly errors or wear of traditional double-sided rotating shafts. This ensures that the screen opens and closes smoothly and without shaking. The rotating shaft assembly adopts a four-point support structure of L1 bracket 1, L2 bracket 2, R1 bracket 3 and R2 bracket 4. Combined with the curved support design of the arc bracket, the external bending moment is effectively converted into compressive stress along the axial direction of the bracket during the opening and closing of the screen, which significantly reduces local stress concentration, extends the service life of the rotating shaft, and improves the overall structural rigidity. The symmetrically arranged protrusions 12 on the mounting shaft 8 cooperate with the limiting grooves on the L1 bracket 1, L2 bracket 2, R1 bracket 3 and R2 bracket 4 brackets. When the screen rotates to the preset angle, the protrusions 12 generate normal extrusion force with the groove wall, forming friction self-locking, preventing the screen from automatically drooping under the action of gravity, achieving stable stopping at multiple angles, smooth operation, and precise positioning.

[0017] Based on the above, other structures also need to be disclosed in detail, such as: Please see Figures 1-5 Both the arc bracket L5 and the arc bracket R6 are equipped with stamped brackets 7, which are integrally formed on the arc bracket L5 and the arc bracket R6 by stamping process.

[0018] Please see Figures 1-5 To improve the rigidity of the pivot assembly, the arc brackets L5 and R6 are made of stainless steel with a wear-resistant decorative layer on the surface; the remaining metal parts are surface treated to improve corrosion resistance and hardness.

[0019] In summary, the working principle of this solution is as follows: When the user opens or closes the screen, an external force acts on the mounting shaft 8, causing the connecting sleeve 11 to rotate. The connecting sleeve 11 drives the rotating bracket 10 to rotate synchronously, which in turn pushes the arc brackets L5 and R6 to move along the arc trajectory, ultimately driving the L1 bracket 1, L2 bracket 2, R1 bracket 3 and R2 bracket 4 to achieve smooth opening and closing of the screen. The double-sided arc brackets L5 and R6 are forced to synchronize through the rigid mounting shaft 8, eliminating left and right offset. The load is shared by four points: L1 bracket 1, L2 bracket 2, R1 bracket 3 and R2 bracket 4. With the curved support of the arc brackets, the bending moment is converted into axial pressure, reducing local stress. During the opening and closing process, the protrusion 12 of the mounting shaft 8 slides in the limiting groove. When it reaches the preset angle, the wedge surface and the crest groove wall generate normal extrusion force, forming friction self-locking.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A laptop screen hinge assembly, comprising an L1 bracket (1), an L2 bracket (2), an R1 bracket (3), an R2 bracket (4), an arc bracket L (5), and an arc bracket R (6), characterized in that: The arc bracket L (5) is positioned between the L1 bracket (1) and the L2 bracket (2), and the arc bracket R (6) is positioned between the R1 bracket (3) and the R2 bracket (4). Both the arc bracket L (5) and the arc bracket R (6) are fixedly connected to a rotating bracket (10). The rotating bracket (10) is fixedly connected to a connecting sleeve (11), and an installation shaft (8) is provided in the connecting sleeve (11).

2. The laptop screen opening and closing hinge assembly according to claim 1, characterized in that: The L1 bracket (1), L2 bracket (2), R1 bracket (3) and R2 bracket (4) are all fixedly connected to the mounting sleeve (9). The two ends of the mounting shaft (8) pass through the mounting sleeve (9) on the corresponding side to drive the arc bracket L (5) and arc bracket R (6) to rotate synchronously.

3. The notebook screen opening and closing hinge assembly according to claim 2, characterized in that: Both the arc bracket L (5) and the arc bracket R (6) are provided with stamped brackets (7), which are integrally formed on the arc bracket L (5) and the arc bracket R (6) by stamping process.

4. The notebook screen opening and closing hinge assembly according to claim 1, characterized in that: Two protrusions (12) are symmetrically fixedly connected on the mounting shaft (8). The L1 bracket (1), L2 bracket (2), R1 bracket (3) and R2 bracket (4) are all provided with limiting grooves that match the protrusions (12). The protrusions (12) slide along the limiting grooves and generate frictional resistance due to the squeezing of the groove wall at the preset angle position, thereby achieving angle self-locking.

5. The notebook screen opening and closing hinge assembly according to claim 1, characterized in that: The arc brackets L (5) and R (6) are made of stainless steel and have a wear-resistant decorative layer on their surface; the remaining metal parts are surface treated to improve corrosion resistance and hardness.

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