A foldable keyboard

Abstract

This utility model relates to the field of keyboard technology and discloses a foldable keyboard, including a first keyboard body and a second keyboard body. A rotating block is fixedly connected to the outer surface of one end of a telescopic rod, and a hinge block is rotatably connected to the outer surface of the rotating block. A hemispherical top block is fixedly connected to the outer surface of a slider. A telescopic storage groove is provided on the left side of the first keyboard body, and a stretching sliding block is slidably connected to the inner side wall of the telescopic storage groove. A fastening fixing plate is rotatably connected to the left end of the stretching sliding block, and a fixing block is fixedly connected to the outer surface of the fastening fixing plate. A fixing slot adapted to the fixing block is provided on the lower right side of the second keyboard body. This foldable keyboard achieves seamless splicing and stable folding through the cooperation of the telescopic rod and the vertical positioning slot, solving the problem of traditional foldable keyboards having a raised middle section and occupying a large space. With the help of a spring-driven telescopic storage structure, the fixing device is automatically hidden when unfolded, taking into account both practicality and aesthetics.

Description

Technical Field

[0001] This utility model relates to the field of keyboard technology, and more specifically, to a foldable keyboard. Background Technology

[0002] In the era of digital office and mobile internet, the keyboard, as an important input tool for human-electronic device interaction, is becoming increasingly crucial in terms of portability and space adaptability. Foldable keyboards, with their unique structural design, break the limitations of traditional fixed keyboard shapes, allowing them to be folded and stored when not in use, significantly reducing their footprint. They are particularly suitable for diverse scenarios such as business travel, mobile office, and gaming, providing users with a convenient and efficient input experience and effectively meeting people's needs for device portability and flexibility.

[0003] However, existing traditional keyboards have obvious drawbacks in actual use. Due to their integrated fixed structure design and lack of folding function, they are large in size and long in length, making them difficult to fit into small storage bags or portable devices. Users often need to carry a special protective case when carrying the keyboard, which not only increases the burden of carrying it, but also makes it easy for the keyboard to be damaged by bumps.

[0004] A foldable computer keyboard disclosed in Chinese Utility Model Patent Application Publication CN221551192U, while featuring a fixing mechanism that provides superior stability and ensures a secure hold after folding, also has drawbacks. The connecting block and hinge allow for folding, effectively reducing the keyboard's size. However, when unfolded, the connecting block is located between the first and second keyboards, often resulting in a large gap in the middle of the keyboard. This makes the unfolded keyboard longer and hinders typing.

[0005] Furthermore, in existing folding keyboards, the fixing devices are usually directly exposed on the outside of the keyboard, which seriously affects the aesthetics of the keyboard. For example, in the foldable portable keyboard disclosed in Chinese Utility Model Patent Application Publication CN217034704U, the first and second keyboard bodies are fixed after folding by the cooperation of magnetic blocks and card sleeves. However, after unfolding, the magnetic blocks and card sleeves are on the outside of the keyboard, which is aesthetically unappealing and may affect consumers' desire to buy. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the above situation and to overcome the defects of the prior art, this utility model provides a foldable keyboard, which aims to solve the problems in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a foldable keyboard, comprising a first keyboard body and a second keyboard body, the second keyboard body being disposed at the right end of the first keyboard body. Telescopic grooves are provided at the right end of the first keyboard body and the left end of the second keyboard body. A telescopic rod is slidably connected to the inner wall of the telescopic groove. A rotating block is fixedly connected to the outer surface of one end of the telescopic rod. A hinge block is rotatably connected to the outer surface of the rotating block. A positioning groove is provided on the outer surface of the rotating block inside the hinge block. A slider is slidably connected to the inner wall of the hinge block. A hemispherical top block is fixedly connected to the outer surface of the block. Magnet blocks are provided on the right end face of the first keyboard body and the left end face of the second keyboard body. A telescopic storage slot is provided on the left side of the first keyboard body. A stretching sliding block is slidably connected to the inner side wall of the telescopic storage slot. A protruding connecting block is fixedly connected to the outer surface of the stretching sliding block. A second spring is fixedly connected to the outer surface of the protruding connecting block. A fastening fixing plate is rotatably connected to the left end of the stretching sliding block. A fixing block is fixedly connected to the outer surface of the fastening fixing plate. A fixing slot adapted to the fixing block is provided on the lower side of the right end of the second keyboard body.

[0010] The present invention is further configured such that a first limiting groove is provided on the outer surface of the first keyboard body and the outer surface of the second keyboard body, and a limiting pin is threadedly connected to the outer surface of the telescopic rod, and the limiting pin is disposed on the inner side wall of the first limiting groove.

[0011] The present invention is further configured such that there are two telescopic rods arranged symmetrically, and two positioning slots are provided, with the line connecting the slots to the center line of the rotating block forming a right angle.

[0012] The present invention is further configured such that the outer surface of the hemispherical top block is engaged with the inner wall of the positioning groove, two sliders are provided and symmetrically arranged, a first spring is provided between the two sliders, and a cover is engaged with the inner wall of the hinge block.

[0013] The present invention is further configured such that there are two of each of the protruding connecting blocks and the second spring, which are arranged symmetrically. One end of the second spring abuts against the inner wall of the telescopic storage groove. The outer surface of the fastening fixing plate is provided with a protruding piece on the outer side of the fixing block, and the outer surface of the fastening fixing plate is provided with a groove on the opposite side of the fixing block.

[0014] The present invention is further configured such that a second limiting groove is provided on the lower surface of the first keyboard body, and a second limiting pin is threadedly connected to the lower surface of the stretching sliding block, and the outer surface of the second limiting pin is slidably connected to the inner sidewall of the second limiting groove.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a foldable keyboard, which has the following advantages:

[0017] 1. This foldable keyboard, through the arrangement of a telescopic groove, a telescopic rod, a rotating block, a positioning slot, a hinge block, a slider, and a first spring, achieves the effect of easy folding and minimal space occupation when unfolded. Through the coordinated arrangement of the telescopic groove, telescopic rod, rotating block, positioning slot, and hinge block, during use, when the keyboard is opened, the first keyboard body and the second keyboard body are spliced ​​together, avoiding gaps in the middle that would make the overall keyboard larger, thus achieving the purpose of easy folding and minimal space occupation when unfolded.

[0018] 2. This foldable keyboard, through the arrangement of a stretching slider, a second spring, and a snap-fit ​​fixing plate, enables the foldable keyboard to facilitate the storage of the fixing device. Through the coordinated arrangement of the magnet block, the stretching slider, the protruding connecting block, the second spring, the snap-fit ​​fixing plate, and the fixing block, the keyboard can be fixed when the first keyboard body and the second keyboard body are folded during use, and automatically stored when unfolded, effectively reducing the impact on aesthetics. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention in its folded state;

[0020] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention in its folded state;

[0021] Figure 3 This is a three-dimensional structural diagram of the present invention in its unfolded state;

[0022] Figure 4 This is a three-dimensional structural diagram of the first keyboard body of this utility model;

[0023] Figure 5 This is a three-dimensional structural diagram of the first keyboard body of this utility model, viewed from below.

[0024] Figure 6 This is a three-dimensional structural diagram of the second keyboard body of this utility model;

[0025] Figure 7This is an exploded structural diagram of the internal structure of the hinge block of this utility model;

[0026] Figure 8 This is a three-dimensional structural diagram of the snap-fit ​​fixing plate of this utility model in a folded state;

[0027] Figure 9 This is a three-dimensional structural diagram of the snap-fit ​​fixing plate of this utility model in its unfolded state.

[0028] In the diagram: 1. First keyboard body; 2. Second keyboard body; 3. Telescopic groove; 4. Telescopic rod; 5. First limiting slide groove; 6. Limiting pin; 7. Rotating block; 8. Positioning slot; 9. Hinge block; 10. Slider; 11. Hemispherical top block; 12. First spring; 13. Cover; 14. Magnet block; 15. Tensioning sliding block; 16. Protruding connecting block; 17. Second spring; 18. Fastening fixing plate; 19. Fixing block; 20. Protruding piece; 21. Groove; 22. Second limiting slide groove; 23. Second limiting pin; 24. Telescopic storage groove; 25. Fixing slot. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0032] Please see Figures 1 to 7A foldable keyboard includes a first keyboard body 1 and a second keyboard body 2. The second keyboard body 2 is located at the right end of the first keyboard body 1. Telescopic grooves 3 are provided at the right end of the first keyboard body 1 and the left end of the second keyboard body 2. Telescopic rods 4 are slidably connected to the inner walls of the telescopic grooves 3. First limiting grooves 5 are provided on the outer surfaces of both the first keyboard body 1 and the second keyboard body 2. Limiting pins 6 are threadedly connected to the outer surface of the telescopic rods 4, and the limiting pins 6 are located on the inner walls of the first limiting grooves 5. Two telescopic rods 4 are provided and symmetrically arranged. Two positioning slots 8 are provided, and the angle between the line connecting them to the center line of the rotating block 7 is a right angle. A rotating block 7 is fixedly connected to the outer surface of one end of the telescopic rod 4. A hinge block 9 is rotatably connected to the outer surface of the rotating block 7. A positioning slot 8 is opened inside the hinge block 9 on the outer surface of the rotating block 7. A slider 10 is slidably connected to the inner wall of the hinge block 9. A hemispherical top block 11 is fixedly connected to the outer surface of the slider 10. The outer surface of the hemispherical top block 11 is engaged with the inner wall of the positioning slot 8. There are two sliders 10 arranged symmetrically. A first spring 12 is arranged between the two sliders 10. A cover 13 is engaged with the inner wall of the hinge block 9. A magnet block 14 is provided on the right end face of the first keyboard body 1 and the left end face of the second keyboard body 2.

[0033] Specifically, the first keyboard body 1 and the second keyboard body 2 are connected by symmetrically distributed telescopic rods 4. The telescopic rods 4 are slidably embedded in the telescopic grooves 3. The limiting pins 6 on the outer surface slide along the first limiting grooves 5. The rotating block 7 at the end of the telescopic rod 4 is rotatably connected to the hinge block 9. Two vertically distributed positioning slots 8 are opened on the outer surface of the rotating block 7. The slider 10 on the inner side of the hinge block 9 is driven by the first spring 12 to engage with the hemispherical top block 11 and the positioning slots 8. Magnet blocks 14 are set on the mating surfaces of the first keyboard body 1 and the second keyboard body 2. When unfolded, the two keyboard bodies are pulled outward. The telescopic rod 4 extends out from the telescopic groove 3, and the limiting pin 6 slides along the first limiting slide groove 5 to the end. The second keyboard body 2 is rotated so that the two bodies are on the same plane. At this time, the hemispherical top block 11 is inserted into the other end of the positioning slot 8 under the action of the first spring 12, realizing the unfolding and positioning. The magnet blocks 14 attract each other to reduce the splicing gap. When folding, the second keyboard body 2 is rotated in the opposite direction to the stacked state, and the hemispherical top block 11 slides into the other end of the positioning slot 8 to complete the folding and fixing. This structure makes the keyboard without the middle protrusion and the wide gap after unfolding, and the length is shorter than that of the traditional folding keyboard.

[0034] Please refer to the figure. Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 , Figure 8 and Figure 9The left side of the first keyboard body 1 has a telescopic storage slot 24. A stretching sliding block 15 is slidably connected to the inner wall of the telescopic storage slot 24. A protruding connecting block 16 is fixedly connected to the outer surface of the stretching sliding block 15. A second spring 17 is fixedly connected to the outer surface of the protruding connecting block 16. Two protruding connecting blocks 16 and two springs 17 are provided and symmetrically arranged. One end of the second spring 17 abuts against the inner wall of the telescopic storage slot 24. A protruding piece 20 is provided on the outer surface of the fastening fixing plate 18, located outside the fixing block 19. The outer surface of the 8 has a groove 21 on the opposite side of the fixed block 19. The left end of the stretching sliding block 15 is rotatably connected to the fastening fixing plate 18. The outer surface of the fastening fixing plate 18 is fixedly connected to the fixed block 19. The lower right side of the second keyboard body 2 has a fixing slot 25 that matches the fixed block 19. The lower surface of the first keyboard body 1 has a second limiting groove 22. The lower surface of the stretching sliding block 15 is threadedly connected to the second limiting pin 23. The outer surface of the second limiting pin 23 is slidably connected to the inner wall of the second limiting groove 22.

[0035] Specifically, a stretchable sliding block 15 is slidably connected within the telescopic storage slot 24 on the left side of the first keyboard body 1. This block is connected to the second spring 17 via a protruding connecting block 16. The second limiting pin 23 on the lower surface slides along the second limiting groove 22. The left end of the stretchable sliding block 15 is rotatably connected to a fastening fixing plate 18. A fixing block 19 on its outer surface is adapted to the fixing slot 25 of the second keyboard body 2. When folded, pulling the fastening fixing plate 18 compresses the stretchable sliding block 15, causing the second spring 17 to extend from the telescopic storage slot 24 and rotate. The fastening plate 18 causes the fixing block 19 to engage with the fixing slot 25, completing the folding and fixing. When unfolded, the protruding piece 20 is moved to disengage the fixing block 19 from the slot. The second spring 17 resets and drives the stretching sliding block 15 to retract the fastening plate 18 into the telescopic storage slot 24. The second limit pin 23 prevents the stretching sliding block 15 from directly disengaging from the fixing slot 25. This structure completely hides the fixing device inside the keyboard, improving the aesthetics compared to the traditional exposed fixing structure. Moreover, there are no protruding parts after storage, making it easy to put into a backpack for carrying.

[0036] In summary, during normal use, the four sets of telescopic rods 4 are stored inside the telescopic slots 3. At this time, the connection between the first keyboard body 1 and the second keyboard body 2 is located in the middle of the two hinge blocks 9. The hinge blocks 9 in the middle support the first keyboard body 1 and the second keyboard body 2, preventing them from bending at an angle during use. Furthermore, the four magnets 14 attract each other, improving the tightness of the connection between the first keyboard body 1 and the second keyboard body 2. During daily use, the protruding connecting block 16 and the second spring 17 push the stretching sliding block 15 into the telescopic storage slot 24, thereby causing the fastening fixing plate 18 to retract into the telescopic storage slot 24, improving aesthetics. When folding is required, first pull the first keyboard body 1 and the second keyboard body 2 towards each other with both hands, pulling the four sets of telescopic rods 4 outward from the corresponding telescopic slots 3. The limiting pin 6 slides within the first limiting groove 5 to prevent the telescopic rod 4 from being pulled directly out of the telescopic groove 3, and also facilitates the installation and subsequent maintenance of the telescopic rod 4. Then, the second keyboard body 2 is flipped upward and stacked on top of the first keyboard body 1. During this process, the hemispherical top block 11 slides from one end to the other inside the positioning slot 8, which facilitates the control of the angle between the telescopic rod 4 and the hinge block 9, improving the feel when folding and opening. The cover 13 facilitates the maintenance of the components inside the hinge block 9. After folding, the fingers hold the groove 21, pull the fastening fixing plate 18 outward and fold it upward, so that the fixing block 19 is inserted into the fixed slot 25 to complete the folding operation. After folding, the overall length space occupied is reduced. When opening, the fingers hold the protrusion 20 and fold the fastening fixing plate 18 outward. The fastening fixing plate 18 will automatically retract into the telescopic storage slot 24.

[0037] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A foldable keyboard comprising a first keyboard body (1) and a second keyboard body (2), characterized in that: The second keyboard body (2) is located at the right end of the first keyboard body (1). Telescopic grooves (3) are provided at the right end of the first keyboard body (1) and the left end of the second keyboard body (2). A telescopic rod (4) is slidably connected to the inner wall of the telescopic groove (3). A rotating block (7) is fixedly connected to the outer surface of one end of the telescopic rod (4). A hinge block (9) is rotatably connected to the outer surface of the rotating block (7). A positioning slot (8) is provided on the outer surface of the rotating block (7) inside the hinge block (9). A slider (10) is slidably connected to the inner wall of the hinge block (9). A hemispherical top block (11) is fixedly connected to the outer surface of the slider (10). The right end face of the first keyboard body (1) Magnet blocks (14) are provided on the left end face of both the first keyboard body (1) and the second keyboard body (2). A telescopic storage groove (24) is provided on the left side of the first keyboard body (1). A stretching sliding block (15) is slidably connected to the inner wall of the telescopic storage groove (24). A protruding connecting block (16) is fixedly connected to the outer surface of the stretching sliding block (15). A second spring (17) is fixedly connected to the outer surface of the protruding connecting block (16). A fastening fixing plate (18) is rotatably connected to the left end of the stretching sliding block (15). A fixing block (19) is fixedly connected to the outer surface of the fastening fixing plate (18). A fixing slot (25) adapted to the fixing block (19) is provided on the lower side of the right end of the second keyboard body (2).

2. The foldable keyboard of claim 1, wherein: The outer surface of the first keyboard body (1) and the outer surface of the second keyboard body (2) are provided with a first limiting groove (5). The outer surface of the telescopic rod (4) is threaded with a limiting pin (6). The limiting pin (6) is located on the inner side wall of the first limiting groove (5).

3. The foldable keyboard of claim 1, wherein: The telescopic rod (4) is provided in two symmetrical positions, and the positioning slot (8) is provided in two positions, with the line connecting it to the center line of the rotating block (7) forming a right angle.

4. The foldable keyboard of claim 1, wherein: The outer surface of the hemispherical top block (11) is engaged with the inner wall of the positioning slot (8). There are two sliders (10) arranged symmetrically. A first spring (12) is provided between the two sliders (10). The inner wall of the hinge block (9) is engaged with a cover (13).

5. The foldable keyboard of claim 1, wherein: The protruding connecting block (16) and the second spring (17) are both provided in two and symmetrically arranged. One end of the second spring (17) abuts against the inner side wall of the telescopic storage groove (24). The outer surface of the fastening fixing plate (18) is provided with a protruding piece (20) on the outside of the fixing block (19). The outer surface of the fastening fixing plate (18) is provided with a groove (21) on the opposite side of the fixing block (19).

6. The foldable keyboard of claim 1, wherein: The lower surface of the first keyboard body (1) is provided with a second limiting groove (22), and the lower surface of the stretching sliding block (15) is threaded with a second limiting pin (23). The outer surface of the second limiting pin (23) is slidably connected to the inner sidewall of the second limiting groove (22).

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