Portable foldable keyboard

Abstract

The utility model discloses a portable foldable keyboard, which relates to the technical field of keyboards, and comprises a keyboard body consisting of a main keyboard and an auxiliary keyboard, and further comprises a folding assembly for folding the auxiliary keyboard on the main keyboard, the folding assembly comprises a plurality of rotating bases and a plurality of connecting blocks which are connected with the bottom of the main keyboard and the bottom of the auxiliary keyboard respectively, and a rotating shaft rotationally connected with the rotating bases is installed between every two adjacent connecting blocks. According to the folding keyboard, the torsion spring in the initial state in the rotating seat enables the connecting block to be attached to the bottom of the main keyboard through the rotating shaft, so that the bottom of the main keyboard is attached to the bottom of the auxiliary keyboard, the keyboard body is folded, the folded keyboard body is convenient to carry, and when the keyboard body is in the unfolded state, the permanent magnet is arranged; therefore, rapid and stable locking is achieved through the magnetic attraction force, a locking mechanism is simplified, the number of parts is reduced, folding operation is convenient and rapid, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of keyboards. Specifically, it relates to a portable foldable keyboard. Background Art

[0002] A keyboard is an instruction and data input device used to operate a computer device. Through the keyboard, English letters, Chinese characters, numbers, punctuation marks, etc. can be input into the computer, so as to issue commands to the computer, input data, etc. There are various types of existing keyboards. Most of the keyboards on the market today are relatively large in size, poor in portability, and cannot be folded. When it is necessary to carry them according to actual usage needs, it is difficult to fold and carry the keyboard, reducing the practicality of the device. However, there are a few keyboards with folding functions.

[0003] The patent document with the application number 202320701998.2 discloses a portable foldable keyboard, which includes a keyboard main body. Four installation grooves are symmetrically opened at the bottom of both sides of the keyboard main body, and four fixing pins are installed inside the four installation grooves. Four rotating blocks are rotatably connected at the centers of the four fixing pins, and a first folding part and a second folding part are respectively installed on both sides of the four rotating blocks. Two locking and fixing mechanisms are installed on both sides of the first folding part and the second folding part. A data cable is installed at the center of one side of the keyboard main body. By dividing the keyboard into three sections, a three-section folding of the keyboard is realized. Compared with the traditional two-section foldable keyboard, the volume of the keyboard is smaller and the portability is stronger after folding, greatly increasing the practicality of the device; through the installation of the locking and fixing mechanism, the plugging and fixing of the plugging rod and the plugging block are used to increase the structural strength and stability of the hinged folding part of the foldable keyboard, avoiding the situation of unstable structure and shaking during typing.

[0004] However, it is found in the implementation of the related technology that the above-designed portable foldable keyboard has the following problems: Although the structural strength and stability of the hinged folding part of the foldable keyboard are increased by the installation of the locking and fixing mechanism and the plugging and fixing of the plugging rod and the plugging block, the locking and fixing mechanism includes multiple components, such as plugging blocks, plugging rods, installation cylinders, etc., which increases the complexity and maintenance difficulty of the keyboard. In addition, users may need to spend some time getting familiar with how to correctly use these mechanisms. Therefore, there are problems of cumbersome and time-consuming operations during use, affecting the user experience during use. In view of this, a portable foldable keyboard is provided to overcome the above defects. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a portable foldable keyboard, so as to achieve the purpose of reducing the number of components of the locking mechanism, facilitating quick folding operation, and improving the user experience.

[0006] To solve the above technical problems, a portable foldable keyboard provided by the present utility model includes a keyboard body, the keyboard body is composed of a main keyboard and a sub-keyboard, and further includes a folding assembly for folding the sub-keyboard on the main keyboard. The folding assembly includes a plurality of rotating seats and a plurality of connecting blocks respectively connected to the bottoms of the main keyboard and the sub-keyboard. A rotating shaft rotatably connected to the rotating seat is installed between two adjacent connecting blocks. A torsion spring that makes the connecting block close to the main keyboard in the initial state is arranged between the rotating shaft and the rotating seat. A plurality of permanent magnets are installed between the main keyboard and the sub-keyboard, and adjacent two permanent magnets attract each other magnetically.

[0007] Further, an installation cavity is opened inside the rotating seat, and rotating grooves are opened on both sides of the rotating seat. The rotating grooves communicate with the installation cavity. The torsion spring is sleeved outside the rotating shaft, and two ends of the torsion spring are respectively connected to the inner wall of the installation cavity and the outer wall of the rotating shaft. The rotating shaft is rotatably connected to the inner wall of the rotating groove.

[0008] Further, a limiting groove adapted to the rotating shaft is opened on the opposite side of two adjacent connecting blocks. The inner wall of the limiting groove is connected to the rotating shaft, and the depth of the limiting groove is half of the thickness of the connecting block.

[0009] Further, a plurality of first anti-slip pads are installed at the bottom of the sub-keyboard, a plurality of second anti-slip pads are installed at the bottom of the main keyboard, and a plurality of anti-slip rings are installed at the bottom of the main keyboard. The first anti-slip pads are inserted into the anti-slip rings.

[0010] Further, a portable through groove is penetrated through the main keyboard, a silica gel ring is installed on the inner wall of the portable through groove, and anti-slip particles are integrally formed on the outer surface of the silica gel ring.

[0011] Further, a battery box, a Bluetooth chip box, and a wireless transmitter box are installed on the front side of the sub-keyboard. A USB receiver is closely attached to the inner wall of the silica gel ring. The battery box, the Bluetooth chip box, and the wireless transmitter box are all electrically connected to the sub-keyboard.

[0012] Further, the materials of the main keyboard, the sub-keyboard, the rotating seat, and the connecting block are all carbon fiber, and the materials of the rotating shaft and the torsion spring are both stainless steel.

[0013] Further, a flexible circuit board is installed between the main keyboard and the sub-keyboard. Two sides of the flexible circuit board respectively extend into the main keyboard and the sub-keyboard. The main keyboard is electrically connected to the sub-keyboard through the flexible circuit board. Placing grooves adapted to the flexible circuit board are opened on the opposite sides of the main keyboard and the sub-keyboard.

[0014] After adopting the above technical solutions, the present utility model has the following beneficial effects compared with the prior art.

[0015] 1. In the present utility model, the torsion spring in the rotating seat makes the connecting block fit with the bottom of the main keyboard through the rotating shaft in the initial state, so that the bottom of the main keyboard fits with the bottom of the sub-keyboard, and then the keyboard body is folded. The folded keyboard body is convenient to carry. When the keyboard body is in the unfolded state, by setting permanent magnets, rapid and stable locking is achieved through magnetic attraction, simplifying the locking mechanism, reducing the number of components, making the folding operation convenient and fast, and improving the user experience.

[0016] 2. In the present utility model, a battery is arranged inside the battery box to supply power to the keyboard body. A Bluetooth chip and a 2.4GHz wireless transmitter are respectively installed inside the Bluetooth chip box and the wireless transmitter box. The chip, the wireless transmitter, and the USB receiver are responsible for wireless communication. When a key on the keyboard body is pressed, the corresponding signal is converted into a digital signal through the Bluetooth chip and the 2.4GHz wireless transmitter, and then encoded and transmitted in a specific Bluetooth protocol or the 2.4GHz frequency band. Finally, the Bluetooth chip or the USB receiver on the device side receives and decodes these signals, converts them into corresponding operations, thereby avoiding the problem that the wired keyboard body is inconvenient to carry after folding. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings, as a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model, but do not constitute an improper limitation to the present utility model. Obviously, the drawings in the following description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0018] Figure 1 is a top view structural schematic diagram of a portable foldable keyboard of the present utility model;

[0019] Figure 2 is a bottom view structural schematic diagram of a portable foldable keyboard of the present utility model;

[0020] Figure 3 is a structural schematic diagram of the rotating shaft in a portable foldable keyboard of the present utility model;

[0021] Figure 4 is a sectional structural schematic diagram of the rotation in a portable foldable keyboard of the present utility model;

[0022] Figure 5 is a structural schematic diagram of the connecting block in a portable foldable keyboard of the present utility model;

[0023] Figure 6 isFigure 1 Enlarged view of the structure at location A in

[0024] Figure 7 is Figure 2 Enlarged view of the structure at location B in

[0025] Reference numerals in the figure:

[0026] 1. Keyboard body; 101. Main keyboard; 102. Sub-keyboard;

[0027] 2. Folding assembly; 201. Rotating base; 202. Connecting block; 203. Rotating shaft; 204. Torsion spring; 205. Permanent magnet;

[0028] 3. Installation cavity; 4. Rotating groove; 5. Limiting groove; 6. First anti-slip pad; 7. Second anti-slip pad; 8. Anti-slip ring; 9. Portable through groove; 10. Silicone ring; 11. Battery box; 12. Bluetooth chip box; 13. Wireless transmitter box; 14. USB receiver.

[0029] It should be noted that these drawings and textual descriptions are not intended to limit the scope of the concept of the present utility model in any way, but rather to illustrate the concept of the present utility model to those skilled in the art by reference to specific embodiments. Detailed implementation manners

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0032] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In the actual application process of an existing portable foldable keyboard, although its structure strength and stability at the hinged folding part of the foldable keyboard are increased by the installation of a locking and fixing mechanism and the insertion and fixation of an insertion rod and an insertion block, however, its locking and fixing mechanism includes multiple components, such as an insertion block, an insertion rod, an installation cylinder, etc., which increases the complexity of the keyboard and the difficulty of maintenance. In addition, users may need to spend some time getting familiar with how to correctly use these mechanisms. Therefore, there are problems of cumbersome operation and time consumption during use, which affects the user experience during use.

[0034] Embodiment 1

[0035] Provided by Figures 1-7 the present utility model provides a portable foldable keyboard.

[0036] Specifically, provided by Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 it includes a keyboard body 1, the keyboard body 1 is composed of a main keyboard 101 and a sub-keyboard 102, and further includes a folding component 2 for folding the sub-keyboard 102 on the main keyboard 101. The folding component 2 includes a plurality of rotating seats 201 and a plurality of connecting blocks 202 respectively connected to the bottoms of the main keyboard 101 and the sub-keyboard 102. A rotating shaft 203 rotatably connected to the rotating seat 201 is installed between two adjacent connecting blocks 202. A torsion spring 204 that makes the connecting block 202 close to the main keyboard 101 in the initial state is arranged between the rotating shaft 203 and the rotating seat 201. A plurality of permanent magnets 205 are installed between the main keyboard 101 and the sub-keyboard 102, and adjacent two permanent magnets 205 attract each other magnetically;

[0037] An installation cavity 3 is provided inside the rotating seat 201. Rotating grooves 4 are provided on both sides of the rotating seat 201. The rotating grooves 4 communicate with the installation cavity 3. The torsion spring 204 is sleeved outside the rotating shaft 203. The two ends of the torsion spring 204 are respectively connected to the inner wall of the installation cavity 3 and the outer wall of the rotating shaft 203. The rotating shaft 203 is rotatably connected to the inner wall of the rotating groove 4. By providing the installation cavity 3 and the installation cavity 3, it is not only convenient to install the torsion spring 204 and the rotating connection between the rotating shaft 203 and the rotating seat 201, but also avoids the torsion spring 204 from detaching from the rotating seat 201, thus ensuring the structural integrity of the folding assembly 2; On the opposite sides of two adjacent connecting blocks 202, limiting grooves 5 adapted to the rotating shaft 203 are provided. The inner wall of the limiting groove 5 is connected to the rotating shaft 203. The depth of the limiting groove 5 is half of the thickness of the connecting block 202. By providing the limiting groove 5, the contact area between the rotating shaft 203 and the connecting block 202 is increased, making the connection between the rotating shaft 203 and the connecting block 202 more stable after being fixedly connected. A plurality of first anti-slip pads 6 are installed at the bottom of the sub-keyboard 102. A plurality of second anti-slip pads 7 are installed at the bottom of the main keyboard 101. A plurality of anti-slip rings 8 are installed at the bottom of the main keyboard 101. The first anti-slip pads 6 are inserted into the anti-slip rings 8. By providing a plurality of first anti-slip pads 6, a plurality of second anti-slip pads 7 and a plurality of anti-slip rings 8, the problem of damage caused by friction between the bottoms of the main keyboard 101 and the sub-keyboard 102 and the desktop is avoided, and the first anti-slip pads 6 can be inserted into the anti-slip rings 8, improving the stability of the sub-keyboard 102 when folded on the main keyboard 101. The materials of the main keyboard 101, the main keyboard 101, the rotating seat 201 and the connecting block 202 are all carbon fiber. The materials of the rotating shaft 203 and the torsion spring 204 are both stainless steel. Carbon fiber has high hardness and wear resistance. It can not only increase the service life of the main keyboard 101, the main keyboard 101, the rotating seat 201 and the connecting block 202, but also make the main keyboard 101, the main keyboard 101, the rotating seat 201 and the connecting block 202 more beautiful and not prone to problems such as wear and deformation. A flexible circuit board is installed between the main keyboard 101 and the sub-keyboard 102. The two sides of the flexible circuit board respectively extend into the main keyboard 101 and the sub-keyboard 102. The main keyboard 101 is electrically connected to the sub-keyboard 102 through the flexible circuit board. Placing grooves adapted to the flexible circuit board are provided on the opposite sides of the main keyboard 101 and the sub-keyboard 102. The flexible circuit board has sufficient flexibility and crease resistance characteristics, and can maintain the connectivity of the circuit when the keyboard body 1 is folded and unfolded. When the keyboard body 1 is in the unfolded state, the flexible circuit board is stretched and flattened to ensure the connection of the circuit; When the keyboard body 1 is folded, the flexible circuit board will bend but still maintain the connectivity of the circuit. By providing the placing groove, it is ensured that there is no gap between the main keyboard 101 and the sub-keyboard 102 when the keyboard body 1 is in the unfolded state, improving the user experience during use;The torsion spring 204 in the initial state within the rotating seat 201 causes the connecting block 202 to fit against the bottom of the main keyboard 101 through the rotating shaft 203, thereby enabling the bottom of the main keyboard 101 to fit against the bottom of the sub-keyboard 102, and then folding the keyboard body 1. The folded keyboard body 1 is convenient for carrying. When the keyboard body 1 is in the unfolded state, by setting the permanent magnet 205, rapid and stable locking is achieved through magnetic attraction, simplifying the locking mechanism, reducing the number of components, facilitating quick and convenient folding operation, and improving the user experience.

[0038] In addition, for the main keyboard 101, a portable through groove 9 is provided therein. A silica gel ring 10 is installed on the inner wall of the portable through groove 9. Anti-slip particles are integrally formed on the outer surface of the silica gel ring 10. By providing the portable through groove 9, it is convenient for a hand to be inserted into the main keyboard 101, and thus it is convenient to carry the keyboard body 1. By providing the silica gel ring 10, hard contact between the hand and the portable through groove 9 is avoided, thereby enhancing the comfort during the process of lifting the keyboard body 1. By providing the anti-slip particles, the friction between the hand and the silica gel ring 10 is increased, thus preventing the phenomenon of the hand slipping off.

[0039] Embodiment 2

[0040] Furthermore, as a specific implementation manner of the present utility model, the present utility model provides a portable foldable keyboard.

[0041] Specifically, as shown by Figure 1 and Figure 6 , a battery box 11 is installed on the front side of the sub-keyboard 102, a Bluetooth chip box 12 is installed on the front side of the sub-keyboard 102, a wireless transmitter box 13 is installed on the front side of the sub-keyboard 102, a USB receiver 14 is closely attached to the inner wall of the silica gel ring 10, and the battery box 11, the Bluetooth chip box 12, and the wireless transmitter box 13 are all electrically connected to the sub-keyboard 102;

[0042] A battery is provided inside the battery box 11 for supplying power to the keyboard body 1. A Bluetooth chip and a 2.4GHz wireless transmitter are respectively installed inside the Bluetooth chip box 12 and the wireless transmitter box 13. The chip, the wireless transmitter, and the USB receiver 14 are responsible for wireless communication. When a key on the keyboard body 1 is pressed, the corresponding signal is converted into a digital signal through the Bluetooth chip and the 2.4GHz wireless transmitter, and then encoded and transmitted using a specific Bluetooth protocol or the 2.4GHz frequency band. Finally, the Bluetooth chip or the USB receiver 14 on the device side receives and decodes these signals, converting them into corresponding operations, thereby avoiding the problem of inconvenience in carrying the wired keyboard body 1 after folding.

[0043] Working principle:

[0044] The torsion spring 204 in the initial state within the rotating base 201 causes the connecting block 202 to be in contact with the bottom of the main keyboard 101 through the rotating shaft 203, thereby enabling the bottom of the main keyboard 101 to be in contact with the bottom of the sub-keyboard 102, and then folding the keyboard body 1. The folded keyboard body 1 is convenient to carry. When the keyboard body 1 is in the unfolded state, by setting the permanent magnet 205, rapid and stable locking is achieved through magnetic attraction, simplifying the locking mechanism, reducing the number of components, facilitating quick and convenient folding operation, and improving the user experience.

[0045] By providing a plurality of first anti-slip pads 6, a plurality of second anti-slip pads 7, and a plurality of anti-slip rings 8, the problem of damage caused by friction between the bottoms of the main keyboard 101 and the sub-keyboard 102 and the desktop is avoided. Moreover, the first anti-slip pads 6 can be inserted into the anti-slip rings 8, enhancing the stability of the sub-keyboard 102 when folded on the main keyboard 101.

[0046] A battery is provided inside the battery box 11 to supply power to the keyboard body 1. A Bluetooth chip and a 2.4GHz wireless transmitter are respectively installed inside the Bluetooth chip box 12 and the wireless transmitter box 13. The chip, the wireless transmitter, and the USB receiver 14 are responsible for wireless communication. When a key on the keyboard body 1 is pressed, the corresponding signal is converted into a digital signal through the Bluetooth chip and the 2.4GHz wireless transmitter, then encoded and transmitted using a specific Bluetooth protocol or the 2.4GHz frequency band. Finally, the Bluetooth chip or the USB receiver 14 on the device side receives and decodes these signals, converting them into corresponding operations, thereby avoiding the problem of inconvenience in carrying the wired keyboard body 1 after folding.

[0047] The above description is only a preferred embodiment of the present invention and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art of this patent, without departing from the scope of the technical solution of the present invention, may make some changes or modifications using the technical content prompted above to obtain equivalent embodiments with equivalent changes. The implementation schemes in the above embodiments can also be further combined or replaced. However, as long as the content does not depart from the technical solution of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the present invention's solution.

Claims

1. A portable foldable keyboard, comprising: A keyboard body (1), the keyboard body (1) consisting of a main keyboard (101) and a secondary keyboard (102); A folding assembly (2) for folding the auxiliary keyboard (102) onto the main keyboard (101); The folding assembly (2) is characterized in that the folding assembly (2) comprises a plurality of rotating seats (201) and a plurality of connecting blocks (202) respectively connected to the bottom of the main keyboard (101) and the auxiliary keyboard (102); a rotating shaft (203) rotatably connected to the rotating seat (201) is installed between two adjacent connecting blocks (202); a torsion spring (204) is arranged between the rotating shaft (203) and the rotating seat (201) for making the connecting block (202) close to the main keyboard (101) in an initial state; a plurality of permanent magnets (205) are installed between the main keyboard (101) and the auxiliary keyboard (102); and two adjacent permanent magnets (205) are magnetically attracted to each other.

2. A portable foldable keyboard according to claim 1, characterized in that: The rotating seat (201) has an installation cavity (3) formed inside, and rotating grooves (4) are formed on both sides of the rotating seat (201). The rotating grooves (4) are connected to the installation cavity (3). The torsion spring (204) is sleeved on the outside of the rotating shaft (203). The two ends of the torsion spring (204) are respectively connected to the inner wall of the installation cavity (3) and the outer wall of the rotating shaft (203). The rotating shaft (203) is rotatably connected to the inner wall of the rotating groove (4).

3. A portable foldable keyboard according to claim 2, characterized in that: A limiting groove (5) adapted to the rotating shaft (203) is provided on opposite sides of two adjacent connecting blocks (202), the inner wall of the limiting groove (5) is connected to the rotating shaft (203), and the depth of the limiting groove (5) is half the thickness of the connecting block (202).

4. A portable foldable keyboard according to claim 3, characterized in that: A plurality of first anti-skid pads (6) are installed at the bottom of the auxiliary keyboard (102), a plurality of second anti-skid pads (7) are installed at the bottom of the main keyboard (101), a plurality of anti-skid rings (8) are installed at the bottom of the main keyboard (101), and the first anti-skid pads (6) are plugged into the anti-skid rings (8).

5. A portable foldable keyboard according to claim 4, characterized in that: A portable slot (9) is provided through the main keyboard (101), a silicone ring (10) is installed on the inner wall of the portable slot (9), and anti-slip particles are integrally formed on the outer surface of the silicone ring (10).

6. A portable foldable keyboard according to claim 5, characterized in that: A battery box (11) is installed on the front side of the sub-keyboard (102), a Bluetooth chip box (12) is installed on the front side of the sub-keyboard (102), and a wireless transmitter box (13) is installed on the front side of the sub-keyboard (102); a USB receiver (14) is tightly attached to the inner wall of the silicone ring (10); and the battery box (11), the Bluetooth chip box (12) and the wireless transmitter box (13) are all electrically connected to the sub-keyboard (102).

7. A portable foldable keyboard according to claim 6, characterized in that: The main keyboard (101), the main keyboard (101), the rotating seat (201) and the connecting block (202) are all made of carbon fiber, and the rotating shaft (203) and the torsion spring (204) are all made of stainless steel.

8. The portable foldable keyboard according to claim 7, characterized in that: A flexible circuit board is installed between the main keyboard (101) and the auxiliary keyboard (102), and two sides of the flexible circuit board extend into the interior of the main keyboard (101) and the auxiliary keyboard (102) respectively. The main keyboard (101) is electrically connected to the auxiliary keyboard (102) via the flexible circuit board, and opposite sides of the main keyboard (101) and the auxiliary keyboard (102) are provided with placement grooves adapted to the flexible circuit board.

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