Spinning shaft of wonderful-control keyboard
The Magic Keyboard hinge features a design that uses the flat surfaces of the connecting shaft and the movable frame to achieve two-stage torque adjustment. This solves the problems of existing hinges that cannot accurately divide the angle range and have no adjustable torque, providing flexibility and stability, and adapting to multi-angle adjustment and long-term use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-12
- Publication Date
- 2026-04-07
AI Technical Summary
Existing shafts cannot achieve two-stage torque rotation, cannot accurately divide angle ranges, and the torque is not adjustable, making it difficult to meet the needs of multi-angle adjustment and long-term use in different scenarios.
Design a keyboard hinge that allows for two torque adjustment modes: 0-42 degrees with no torque and 42-180 degrees with torque, achieved by the cooperation of the flat surface A on the connecting shaft and the flat surface B in the slot of the movable bracket. The connecting shaft and the fixed bracket provide stable support through an interference fit, and the torque magnitude can be adjusted by the clearance of the flat surface fit.
It achieves flexible angle adjustment and stable fixation, adapts to different usage scenarios, improves the ease of use and durability of the device, meets users' needs for easy adjustment at small angles and stable fixation at large angles, and is suitable for high-frequency usage scenarios.
Smart Images
Figure CN224093688U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hinge technology, specifically relating to a Magic Keyboard hinge. Background Technology
[0002] In the field of electronic devices, the Magic Keyboard, as a crucial component for enhancing user interaction, directly impacts the ease of use and reliability of the device through the performance of its hinge structure. As users increasingly demand multi-angle adjustments, the hinge must possess flexible angle adjustment capabilities to adapt to different viewing scenarios, such as precise screen angle adjustment in office settings or convenient keyboard storage and unfolding in mobile environments. Furthermore, the hinge must exhibit excellent durability over long-term use to ensure stable performance even after repeated rotations.
[0003] Existing hinges have significant shortcomings in practical applications. First, most existing hinges cannot achieve two-stage torque rotation, only providing a single-torque rotation experience. This makes it impossible for users to obtain differentiated feel when adjusting at different angles; either a large amount of force is always required for rotation, making operation inconvenient, or rotation is too easy, making it difficult to maintain a stable position at a specific angle. Second, regarding the angle adjustment range, existing hinges often cannot precisely define the angle range for different torque levels, failing to meet users' dual needs for easy adjustment at small angles and stable fixation at large angles.
[0004] In view of this, we propose a Magic Keyboard hinge that can perform two types of torque rotation with adjustable force to solve the above problems. Utility Model Content
[0005] The present invention aims to solve the technical problems in the prior art where the rotating shaft is mostly a single torque rotation, which cannot accurately divide the angle range, and the torque is not adjustable and the life is short, making it difficult to meet the technical requirements of multi-angle adjustment and long-term use in different scenarios.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A magic control keyboard hinge includes a movable frame, a connecting shaft, a fixed frame, and a connecting rod;
[0008] Two connecting shafts are fixedly inserted into both ends of the connecting rod. Two fixing frames are provided and fixed to the outer sides of the two connecting shafts respectively. The two connecting shafts at both ends of the connecting rod pass through the fixing frames and are assembled with two movable frames to form a rotatable connection.
[0009] The movable frame is provided with a slot that matches the connecting shaft. The slot has an inwardly convex flat surface B. The connecting shaft has a flat surface A that matches and limits the movement of the flat surface B. After the connecting shaft is inserted into the slot on the movable frame, the cooperation between the flat surface A on the connecting shaft and the flat surface B in the slot on the movable frame allows the movable frame to rotate relative to the fixed frame with either 0-42 degrees without torque or 42-180 degrees with torque.
[0010] Preferably, the connecting shaft passes through a preset hole on the fixed frame, and the fixed frame provides a supporting foundation for the connecting shaft. The connecting shaft and the fixed frame are interlocked to ensure that the connecting shaft is relatively fixed on the fixed frame, so that the fixed frame becomes the main support for the rotation of the movable frame.
[0011] Preferably, decorative caps are inserted and fixed to the outer ends of the two movable frames respectively.
[0012] Compared with the prior art, the technical effects and advantages of this utility model are:
[0013] The Magic Keyboard hinge achieves segmented torque adjustment through the engagement of a flat surface A on the connecting shaft and a flat surface B within the slot of the movable frame. When the rotation angle is between 0 and 42 degrees, the two flat surfaces are not in complete contact, resulting in minimal frictional resistance and no torque. Beyond 42 degrees, the flat surfaces are fully pressed together, generating a torque of 1.4-2.6 kgf-cm. The connecting shaft and the fixed frame are fixed with an interference fit, providing stable support for the rotation of the movable frame. The torque can be adjusted by regulating the clearance between the flat surfaces.
[0014] The two-stage torque design balances flexibility and stability. The torque-free adjustment in the small angle range ensures smooth operation and is suitable for frequent fine-tuning. The torque across the large angle range allows the keyboard to be stably positioned at any angle, preventing wobbling. This adjustable torque feature allows for personalized adaptation to different device weights and usage scenarios, enhancing product compatibility.
[0015] The Magic Keyboard hinge has undergone lifespan and durability testing to verify its structural durability, making it suitable for high-frequency use scenarios such as in-vehicle applications. The segmented angle limiting design of the mechanical structure solves the problem of traditional hinges being "either too loose or too tight" in principle, meeting the precise angle adjustment needs of office scenarios and providing a convenient operating experience when moving and storing the keyboard. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is an exploded view of the present invention;
[0018] Figure 3 This is a diagram showing the state of the Magic Control Keyboard hinge at 0 degrees.
[0019] Figure 4 This is a diagram showing the state of the keypad hinge of this utility model at 42 degrees.
[0020] Figure 5 This is a schematic diagram of the connecting shaft of this utility model;
[0021] Figure 6 This is a schematic diagram of the structure of the movable frame of this utility model;
[0022] Figure 7 This is a structural schematic diagram of the fixing frame of this utility model.
[0023] In the diagram: 1. Decorative cap; 2. Movable frame; 3. Connecting shaft; 4. Fixed frame; 5. Connecting rod; 6. Hole and groove; 7. Flat section B; 8. Flat section A; 9. Preset hole position. Detailed Implementation
[0024] 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.
[0025] The following combination Figures 1 to 7 This application will be described in further detail.
[0026] This application discloses a Magic Keyboard hinge, including a decorative cap 1, a movable frame 2, a connecting shaft 3, a fixed frame 4, and a connecting rod 5;
[0027] Two connecting shafts 3 are fixedly inserted into both ends of the connecting rod 5. Two fixing frames 4 are provided and fixed to the outer sides of the two connecting shafts 3 respectively. The two connecting shafts 3 at both ends of the connecting rod 5 pass through the fixing frame 4 and are assembled with two movable frames 2 to form a rotatable connection. Two decorative caps 1 are provided and are respectively inserted into the outer ends of the two movable frames 2.
[0028] The movable frame 2 is provided with a slot 6 that is adapted to the connecting shaft 3. The slot 6 has an inwardly convex flat surface B7. The connecting shaft 3 has a flat surface A8 that is matched and limited by the flat surface B7. After the connecting shaft 3 is inserted into the slot 6 on the movable frame 2, the flat surface A8 on the connecting shaft 3 and the flat surface B7 in the slot 6 on the movable frame 2 cooperate to achieve two torque adjustment angles for the movable frame 2 relative to the fixed frame 4: 0-42 degrees without torque or 42-180 degrees with torque.
[0029] The connecting shaft 3 passes through the preset hole 9 on the fixed frame 4. The fixed frame 4 provides a support base for the connecting shaft 3. The connecting shaft 3 and the fixed frame 4 are connected by an interference fit to ensure that the connecting shaft 3 is relatively fixed on the fixed frame 4, so that the fixed frame 4 becomes the main support for the rotation of the movable frame 2.
[0030] The connecting shaft 3 passes through the fixed frame 4 and is assembled with the movable frame 2, so that the Magic Keyboard hinge can achieve two levels of torque: no torque from 0° to 42° (+10 / -0) and torque from 42° (+10 / -0) to 180°, with a torque of 1.4-2.6 kgf-cm and a service life of up to 10,000 times.
[0031] This Magic Keyboard hinge can achieve torque rotation in two angle ranges: 0-42 degrees and 42-180 degrees, with adjustable force. Its core principle is closely related to the planar surface fit mechanism, the interference fit between the connecting shaft 3 and the fixed frame 4, and the rotation limit structure of the movable frame 2, as detailed below:
[0032] The fit between planar surfaces A8 and B7: The movable frame 2 has a protruding planar surface B7 within its slot 6, and the connecting shaft 3 has a corresponding planar surface A8. When the movable frame 2 rotates relative to the fixed frame 4, the contact state between planar surfaces A8 and B7 changes with the angle.
[0033] 0-42 degrees (+10 / -0) No torque: Within this angle range, the flat surface A8 and the flat surface B7 are not in complete contact or are in a non-compression state. The frictional resistance between the connecting shaft 3 and the movable frame 2 is very small, and no obvious torque can be formed. Therefore, the rotation feels easy and the angle can be adjusted without resistance.
[0034] Torque within 42-180 degrees (+10 / -0): When the rotation angle exceeds 42 degrees, the flat surface A8 and the flat surface B7 gradually come into complete contact and are squeezed together. The rigid contact between the two will generate frictional resistance, thereby forming a torque of 1.4-2.6 kgf-cm, which keeps the movable frame 2 stable within this angle range and prevents it from shaking.
[0035] When the connecting shaft 3 passes through the fixed frame 4, it is fixed by an interference fit, ensuring that the fixed frame 4 provides a stable support foundation for the connecting shaft 3. When the movable frame 2 rotates, the fixed frame 4 acts as the main support, enabling the flat-section mating structure between the connecting shaft 3 and the movable frame 2 to stably transmit torque and avoid torque failure due to loosening of the connecting shaft 3.
[0036] The clearance between planar surfaces A8 and B7 can be adjusted by machining accuracy or assembly process.
[0037] When the clearance is reduced, the flat surfaces make closer contact after 42 degrees, which increases the frictional resistance and the torque value.
[0038] Increasing the clearance reduces the contact pressure and torque, thus enabling the torque to be adjustable.
[0039] This shaft achieves two-stage torque rotation through segmented angular positioning (flat-cut surface fit) and dynamic adjustment of frictional resistance (fit clearance optimization): 0-42 degrees to meet easy adjustment needs, and 42-180 degrees to meet stable fixing needs. The torque can also be adjusted through structural parameters, taking into account both flexibility and practicality. At the same time, a service life of 10,000 cycles ensures durability in the vehicle environment.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A magic control keyboard hinge, characterized in that, It includes a movable frame (2), a connecting shaft (3), a fixed frame (4), and a connecting rod (5); Two connecting shafts (3) are fixedly inserted into both ends of the connecting rod (5). The fixing frame (4) has two shafts and is fixed on the outer side of the two connecting shafts (3). The two connecting shafts (3) at both ends of the connecting rod (5) pass through the fixing frame (4) and are assembled with the two movable frames (2) to form a rotatable connection. The movable frame (2) is provided with a slot (6) that is compatible with the connecting shaft (3). The slot (6) is provided with an inwardly protruding flat surface B (7). The connecting shaft (3) is provided with a flat surface A (8) that is matched with the flat surface B (7) for positioning. After the connecting shaft (3) is inserted into the slot (6) on the movable frame (2), the flat surface A (8) on the connecting shaft (3) and the flat surface B (7) in the slot (6) on the movable frame (2) can be matched to achieve two torque rotation adjustment angles relative to the fixed frame (4): 0-42 degrees without torque or 42-180 degrees with torque.
2. The Magic Keyboard Hinge according to claim 1, characterized in that: The connecting shaft (3) passes through the preset hole (9) on the fixed frame (4). The fixed frame (4) provides a support base for the connecting shaft (3). The connecting shaft (3) and the fixed frame (4) are connected by an interference fit to ensure that the connecting shaft (3) is relatively fixed on the fixed frame (4), so that the fixed frame (4) becomes the main support for the rotation of the movable frame (2).
3. The Magic Keyboard Hinge according to claim 1, characterized in that: Decorative caps (1) are respectively inserted and fixed to the outer ends of the two movable frames (2).