Key support of notebook keyboard

Abstract

The utility model provides a key bracket of a notebook keyboard, which is used for solving the problem that an outer frame and an inner frame are inconvenient to be matched and mounted in the prior art. The key support comprises an outer frame and an inner frame, rotating shafts are arranged in the centers of the two sides of the inner frame, rotating holes are formed in the inner side of the outer frame and correspond to the rotating shafts one to one, the rotating holes communicate with horizontal sliding grooves, the horizontal sliding grooves communicate with the top face of the outer frame through inclined sliding grooves, and the depth of the horizontal sliding grooves, the depth of the inclined sliding grooves and the depth of the rotating holes are all larger than or equal to the length of the rotating shafts. The width of the horizontal sliding groove is smaller than the diameter of the rotating hole, and the center line of the horizontal sliding groove coincides with the center of the rotating hole. The horizontal sliding groove and the inclined sliding groove are matched to provide a guiding effect for the rotating shaft, so that the connection between the inner frame and the outer frame is more stable, the problem that the key support is easy to fall off in the use process is reduced, the key support is prevented from being clamped or loosened, and the keyboard can still keep good hand feeling after being used for a long time.

Description

Technical Field

[0001] The utility model relates to the technical field of keys, in particular to a key bracket of a notebook keyboard. Background Art

[0002] As an important part of the keyboard, the development of the keyboard key bracket is closely related to the development of the keyboard itself. The current flexible keyboard key bracket structure adopts the design of outer frame and inner frame, and realizes stable support and flexible operation of the keys through structures such as hinges and connecting pins.

[0003] At present, keyboard keys include a bracket, a base plate and a keycap. The base plate of the key is connected to the keycap through an outer frame and an inner frame. The outer frame and the inner frame are usually hinged only in the middle position, and the hinge is usually to open a rotation hole on the inner wall of the outer frame. When installing the inner frame, the outer frame is deformed as a whole by external force to increase the distance between the rotation holes, and then the connecting pins of the inner frame are inserted into the rotation holes. Since the outer frame needs to be deformed, the outer frame may break if not carefully, resulting in low yield and inconvenient assembly. In addition, the gap between the outer frame and the inner frame is large, which causes users to encounter problems such as shaking or unstable keys during use, affecting the accuracy and comfort of typing. Utility Model Content

[0004] The utility model provides a key support for a notebook keyboard, which solves the problem in the prior art that an outer frame and an inner frame are inconvenient to be assembled together.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A key bracket for a notebook keyboard comprises an outer frame and an inner frame, wherein rotation shafts are arranged at the centers of both sides of the inner frame, and rotation holes are arranged on the inner side of the outer frame, wherein the rotation holes correspond to the rotation shafts one by one, and the rotation holes are connected with horizontal slide grooves, wherein the horizontal slide grooves are connected with the top surface of the outer frame through inclined slide grooves, wherein the depths of the horizontal slide grooves, the inclined slide grooves and the rotation holes are all greater than or equal to the length of the rotation shaft, and the width of the horizontal slide grooves is less than the diameter of the rotation hole, and the center line of the horizontal slide grooves coincides with the center of the rotation hole.

[0007] Furthermore, the front and rear ends of the inner frame are respectively provided with an inner frame front rotating shaft and an inner frame rear rotating shaft, and the bottom end of the inner frame rear rotating shaft is provided with a support platform, the bottom surface of the support platform is a support surface, and the support surface forms an obtuse angle with the side wall of the inner frame, and when the inner frame and the outer frame are in the maximum state of intersection, the support surface can abut against the bottom plate. The obtuse angle formed by the support surface of the support platform and the side wall of the inner frame, and the abutment between the support surface and the bottom plate of the fixed bracket, can make the downward force of the keycap more evenly distributed when it is supported, and reduce the damage caused by uneven force.

[0008] Furthermore, the front and rear ends of the outer frame are respectively provided with an outer frame front shaft and an outer frame rear shaft, and a limit baffle is provided below the outer frame front shaft. The precisely controlled key travel can ensure that the key has a suitable travel during the pressing and popping process, avoiding misoperation or inconvenience caused by too long or too short a key travel.

[0009] Furthermore, the rotating hole is close to the front end of the outer frame, the bottom surface of the front end of the inner frame abuts against the top surface of the front end of the outer frame, the front end of the outer frame is provided with a step plate, the inner frame is provided with a receiving groove that can receive the step plate, and when the step plate is placed in the receiving groove, the top surfaces of the inner frame and the outer frame overlap. The step plate and the receiving groove allow the inner frame and the outer frame to be quickly positioned, simplifying the assembly process of the keyboard and improving production efficiency.

[0010] Furthermore, support blocks are provided on both sides of the inner frame, the rotating shaft is fixed on the support blocks, and the support blocks can abut against the inner side wall of the outer frame. The support blocks are close to the front end of the inner frame, and a rotating area is formed between the support blocks and the front rotating shaft of the inner frame, and a sliding area is formed between the support blocks and the rear rotating shaft of the inner frame. The support blocks can abut against the inner side wall of the outer frame to reduce the shaking of the inner frame during operation, thereby increasing the stability of the entire keyboard structure.

[0011] Furthermore, a plurality of balancing blocks are provided on the top surface of the front end of the inner frame, and the balancing blocks can balance the supporting force of the inner frame on the keycap, ensuring that the keycap can maintain a stable state during the process of being pressed and popped up.

[0012] Furthermore, the diameter of the rotating shaft is 0.25 mm greater than the width of the horizontal sliding groove.

[0013] Beneficial effects:

[0014] The horizontal slide groove and the inclined slide groove of the utility model cooperate to provide a guide for the rotating shaft, so that the inner frame and the outer frame are easy to assemble, and the connection between the inner frame and the outer frame is more stable, reducing the problem of easy falling off during use. Because the width of the horizontal slide groove is smaller than the diameter of the rotating shaft, the horizontal slide groove can limit the rotating shaft, ensuring that the rotating shaft can rotate smoothly in the rotating hole, avoiding the problem of the key bracket getting stuck or loose, and achieving the effect that the keyboard can still maintain a good feel after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1It is a schematic diagram of the three-dimensional structure when the outer frame and the inner frame of the utility model intersect;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of the outer frame of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the inner frame of the utility model;

[0019] Figure 4 It is a side view of the inner frame of the utility model;

[0020] Figure 5 It is a partial view of the rotating hole of the utility model;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the utility model.

[0022] Among them: 1. outer frame, 2. inner frame, 3. rotating shaft, 4. rotating hole, 5. horizontal slide groove, 6. inclined slide groove, 7. front rotating shaft of outer frame, 8. rear rotating shaft of inner frame, 9. support platform, 10. supporting surface, 11. limit baffle, 12. step plate, 13. receiving groove, 14. support block, 15. rotating area, 16. sliding area, 17. balancing block. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 , 2 As shown in Figures 5 and 6, the embodiment of the utility model provides a key support for a notebook keyboard, including an outer frame 1 and an inner frame 2, a rotation shaft 3 is provided at the center of both sides of the inner frame 2, a rotation hole 4 is provided on the inner side of the outer frame 1, the rotation hole 4 corresponds to the rotation shaft 3, the rotation hole 4 is connected with a horizontal slide 5, the horizontal slide 5 is connected with the top surface of the outer frame 1 through an inclined slide 6, the depth of the horizontal slide 5, the inclined slide 6 and the rotation hole 4 is greater than or equal to the length of the rotation shaft 3, the width of the horizontal slide 5 is less than the diameter of the rotation hole 4, and the center line of the horizontal slide 5 coincides with the center of the rotation hole 4. The outer frame 1 and the inner frame 2 are both made of plastic material with certain elastic deformation characteristics.

[0025] When the key cap is in use, the end of the inclined slot 6 connected to the outer frame 1 is the entrance end. The rotating shaft 3 is aligned with the entrance end, and the inner frame 2 is pushed to make the rotating shaft 3 slide into the inclined slot 6 and slide into the horizontal slot 5 along the inclined slot 6. Since the width of the horizontal slot 5 is smaller than the diameter of the rotating hole 4, the rotating shaft 3 causes the outer frame 1 at the horizontal slot 5 to deform under the action of the thrust, and finally the rotating shaft 3 is placed in the rotating hole 4. Through the cooperation of the horizontal slot 5 and the inclined slot 6, the rotating shaft 3 can only slide out in the horizontal direction, and the rotating shaft 3 needs to have a large enough pulling force to overcome the resistance of the horizontal slot 5. Under the pulling force of the key cap restoration, the rotating shaft 3 of the inner frame 2 will be subjected to a vertical upward pulling force. The horizontal slot 5 makes the rotating hole 4 not easy to fall off, making the hinge of the inner frame 2 and the outer frame 1 more stable, and can also prevent the problem that the inner frame 2 is easily fallen off due to external force. Moreover, a stable connection is formed between the inner frame 2 and the outer frame 1 to reduce shaking during use and provide a more stable typing experience.

[0026] like Figure 1 , 3 As shown in Figures 4 and 5, the front and rear ends of the inner frame 2 are respectively provided with an inner frame front rotating shaft and an inner frame rear rotating shaft 8, and the bottom end of the inner frame rear rotating shaft 8 is provided with a support platform 9, the bottom surface of the support platform 9 is a support surface 10, and the support surface 10 forms an obtuse angle with the side wall of the inner frame 2. When the inner frame 2 and the outer frame 1 are in the maximum state of intersection, the support surface 10 can be against the bottom plate. In order to provide better support, the keycap moves up under the elastic force of the key, and the outer frame 1 and the inner frame 2 rotate the rotating shaft 3 and the rotating hole 4 under the pulling force of the keycap rising, so that the outer frame 1 and the inner frame 2 form an X-shaped cross state. At this time, the inner frame 2 rotates to make the support surface 10 against the bottom plate of the fixed key bracket. The support surface 10 can provide additional support force for the inner frame 2, making the cross state more stable. Through the design of the inner frame front rotating shaft and the inner frame rear rotating shaft 8, and the addition of the support platform 9, additional support points can be effectively provided.

[0027] like Figure 1 , 2As shown in Figures 6 and 7, the front and rear ends of the outer frame 1 are respectively provided with an outer frame front shaft 7 and an outer frame 1 rear shaft, and a limit baffle 11 is provided below the outer frame front shaft 7. In order to facilitate limiting the rotation height of the bracket, when the keycap drives the outer frame 1 to rotate, the limit baffle 11 can be offset against the bottom plate of the fixed bracket. By controlling the relative angle between the limit baffle 11 and the outer frame 1 during the production process, the rotation angle of the bracket can be controlled, and finally the control of the bracket key travel is achieved, which is convenient for manufacturing keys with different key travels. By controlling the relative angle between the limit baffle 11 and the outer frame 1, the consistency of the key travel of each key during production can be ensured, thereby improving the product quality and user experience. The key travel is controlled by adjusting the relative angle between the limit baffle 11 and the outer frame 1, which simplifies the manufacturing process and reduces production costs. Different users may have different preferences for the key stroke length. By adjusting the key stroke through the limit plate, it can adapt to the usage habits and needs of different users. The limit baffle 11 can limit the excessive rotation of the bracket, enhance the stability of the key structure, and reduce the risk of damage to the bracket due to excessive rotation.

[0028] like Figure 1 , 2 As shown in Figures 5 and 6, the rotating hole 4 is close to the front end of the outer frame 1, the bottom surface of the front end of the inner frame 2 is against the top surface of the front end of the outer frame 1, the front end of the outer frame 1 is provided with a step plate 12, and the inner frame 2 is provided with a receiving groove 13 that can accommodate the step plate 12. When the step plate 12 is placed in the receiving groove 13, the top surface of the inner frame 2 and the outer frame 1 overlap. When the key is pressed, the step hole can be placed in the receiving groove 13 by setting the receiving groove 13, so that the key remains in a horizontal state after being pressed, avoiding the tilt of the key, ensuring the stable rise and fall of the key, and reducing the space occupied by the key bracket in the vertical direction, so that the overall design of the keyboard is more compact and space-saving, which is particularly important for mobile devices that need to carry keyboards or desktop environments with limited space. Since the keyboard may accidentally contact liquid, the step plate 12 can be provided to allow the liquid to flow out, which helps prevent the liquid from accumulating between the inner frame 2 for a long time and damaging the internal circuit. The design of the rotating hole 4 close to the front end of the outer frame 1 facilitates the limiting of the inner frame 2, ensuring that the inner frame 2 can be blocked by the outer frame 1 when rotating, so that the step plate 12 and the receiving groove 13 cooperate to improve the stability of the structure.

[0029] like Figure 3 , 6As shown, both sides of the inner frame 2 are provided with support blocks 14, the rotating shaft 3 is fixed on the support blocks 14, and the support blocks 14 can be against the inner side wall of the outer frame 1. The support blocks 14 are close to the front end of the inner frame 2, and a rotation area 15 is formed between the support blocks 14 and the front rotating shaft of the inner frame, and a sliding area 16 is formed between the support blocks 14 and the rear rotating shaft 8 of the inner frame. The existence of the support blocks 14 effectively supports the inner frame 2, limits the shaking range of the inner frame 2 in the outer frame 1, thereby significantly improving the stability of the keyboard key bracket and reducing the misoperation caused by shaking. The rotation area 15 and the sliding area 16 can facilitate the hinge connection between the inner frame 2 and the keyboard and the bottom plate, ensuring the stable rotation of the inner frame 2. The design of the support block 14 close to the front end of the inner frame 2 provides a part of gravity support for the front end of the inner frame 2. This design makes it easier for the front end of the inner frame 2 to drop when the key is pressed down, thereby achieving a smoother and more natural key action and providing a better typing feel.

[0030] like Figure 3 , 6 As shown, the top surface of the front end of the inner frame 2 is provided with a plurality of balancing blocks 17. The balancing blocks 17 are a plurality of protrusions at the front end of the inner frame 2, and the protrusions are arranged along the front rotating shaft of the inner frame, and the protrusions are against the bottom surface of the keycaps. The balancing blocks 17 can increase the stability of the inner frame 2, ensure that the inner frame 2 can evenly support the keycaps during long-term use, and avoid tilting or instability caused by uneven center of gravity. By adding the balancing blocks 17, the keys can be made smoother during pressing and rebounding, providing a consistent and comfortable tapping feel, and enhancing the user's typing experience. The balancing blocks 17 can effectively disperse the force on the keycaps, reduce the wear between the inner frame 2 and the keycaps, and extend the service life of the keys.

[0031] The diameter of the rotating shaft 3 is 0.25 mm larger than the width of the horizontal slide groove 5. The 0.25 mm gap allows the rotating shaft 3 to be inserted into the horizontal slide groove 5 more easily, simplifying the assembly process, and the 0.25 mm gap also allows the horizontal slide groove 5 to provide appropriate resistance for the rotating shaft 3, preventing the rotating shaft 3 from accidentally sliding out of the rotating hole 4 during normal use, thereby enhancing the stability of the structure. Appropriate resistance can prevent loosening after long-term rotation and maintain the stability and durability of the key bracket.

[0032] like Figure 1 , 2 As shown in Figures 3 and 4, the front rotating shaft 7 of the outer frame is lower than the rear rotating shaft of the outer frame 1, and the front rotating shaft of the inner frame is higher than the rear rotating shaft 8 of the inner frame. This makes the outer frame 1 and the inner frame 2 more tightly connected with the keycap and the bottom plate, improving the stability and reliability of the connection. The design of the rotating shafts at different heights simplifies the assembly process, making it easier for the bottom plate and the keycap to be connected to the corresponding positions. Due to the height difference between the front and rear rotating shafts, when the keycap is pressed, the entire bracket system can form a stable supporting structure.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A key support for a notebook keyboard, comprising an outer frame (1) and an inner frame (2), characterized in that: A rotating shaft (3) is provided at the center of both sides of the inner frame (2), and a rotating hole (4) is provided on the inner side of the outer frame (1). The rotating holes (4) correspond to the rotating shafts (3) one by one. The rotating holes (4) are connected to a horizontal slide groove (5). The horizontal slide groove (5) is connected to the top surface of the outer frame (1) through an inclined slide groove (6). The depths of the horizontal slide groove (5), the inclined slide groove (6) and the rotating hole (4) are all greater than or equal to the length of the rotating shaft (3). The width of the horizontal slide groove (5) is less than the diameter of the rotating hole (4). The center line of the horizontal slide groove (5) coincides with the center of the rotating hole (4).

2. A key support for a laptop keyboard according to claim 1, characterized in that: The front and rear ends of the inner frame (2) are respectively provided with an inner frame front rotating shaft and an inner frame rear rotating shaft (8); the bottom end of the inner frame rear rotating shaft (8) is provided with a support platform (9); the bottom surface of the support platform (9) is a support surface (10); the support surface (10) forms an obtuse angle with the side wall of the inner frame (2); when the inner frame (2) and the outer frame (1) are in a maximum crossing state, the support surface (10) can abut against the bottom plate.

3. The key support for a laptop keyboard according to claim 1, characterized in that: The front and rear ends of the outer frame (1) are respectively provided with an outer frame front rotating shaft (7) and an outer frame (1) rear rotating shaft, and a limit baffle (11) is provided below the outer frame front rotating shaft (7).

4. The key support for a notebook keyboard according to claim 1, characterized in that: The rotating hole (4) is close to the front end of the outer frame (1); the front end of the outer frame (1) is provided with a step plate (12); the inner frame (2) is provided with a receiving groove (13) capable of receiving the step plate (12); when the step plate (12) is placed in the receiving groove (13), the top surfaces of the inner frame (2) and the outer frame (1) overlap.

5. The key support for a notebook keyboard according to claim 1, characterized in that: Support blocks (14) are provided on both sides of the inner frame (2), the rotating shaft (3) is fixed on the support blocks (14), the support blocks (14) can abut against the inner side wall of the outer frame (1), the support blocks (14) are close to the front end of the inner frame (2), a rotating area (15) is formed between the support block (14) and the front rotating shaft of the inner frame, and a sliding area (16) is formed between the support block (14) and the rear rotating shaft (8) of the inner frame.

6. The key support for a notebook keyboard according to claim 1, characterized in that: A plurality of balancing blocks (17) are provided on the top surface of the front end of the inner frame (2).

7. The key support for a notebook keyboard according to claim 1, characterized in that: The diameter of the rotating shaft (3) is 0.25 mm greater than the width of the horizontal sliding groove (5).

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