Folding magnetic attraction charging type keyboard

Abstract

The utility model relates to the technical field of keyboards, in particular to a folding magnetic attraction charging type keyboard which comprises a main keyboard, a first auxiliary keyboard and a second auxiliary keyboard, a charging port is formed in the middle of the rear side of the main keyboard, an anode magnetic strip is embedded in the left side of the first auxiliary keyboard, and third U-shaped grooves are formed in the positions, close to the front end and the rear end, of the right side of the first auxiliary keyboard. First connecting rods are rotationally connected into the two third U-shaped grooves, fourth U-shaped grooves are formed in the positions, close to the front end and the rear end, of the left side of the second auxiliary keyboard, second connecting rods are rotationally connected into the two fourth U-shaped grooves, and a negative magnetic strip used for being in adsorption connection with the positive magnetic strip is embedded into the right side of the second auxiliary keyboard. According to the folding magnetic attraction charging type keyboard, through the attraction effect of the positive magnetic strip and the negative magnetic strip, it is ensured that the first auxiliary keyboard and the second auxiliary keyboard are closed after being folded, accidental unfolding caused by external force is avoided, and the reliability and operation stability during carrying are remarkably improved.

Description

Technical Field

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

[0002] As a crucial input tool for computer users, the keyboard has become an indispensable peripheral in modern offices and daily life. Traditional keyboards are generally large, facilitating extended typing sessions, but they fall short in terms of portability and mobility. With the widespread adoption of mobile devices, users' demand for portable input devices has become increasingly urgent, leading to the development of foldable keyboards. This design not only reduces size and makes them easier to carry but also provides a similar user experience to traditional keyboards.

[0003] Patent CN218585298U discloses a folding keyboard, including two side panels and a main board. A flexible connecting piece is provided between the side panels and the main board. First grooves are formed on both sides of the main board, with the depth of the first grooves greater than the length of the connecting piece. An inner board is slidably connected within the first grooves. The end of the connecting piece not connected to the side panel is fixedly connected to the inner board. A connector includes a return spring fixedly connected within a third groove. A limiting piece is fixedly connected to the other end of the return spring, with arc-shaped slots on both sides of the limiting piece. This folding keyboard is very similar to a normal keyboard, providing a better user experience. After folding, it can limit the movement of the side panels, further protecting the keys. It also allows for adjustment of the keyboard angle, improving its practicality and possessing high promotional value.

[0004] The existing folding keyboards described above use side panels to allow connecting pieces to enter the first groove, thus enabling the side panels to abut against the motherboard and form a normal keyboard. However, the lack of an effective fixing structure after the connecting pieces enter the first groove causes the side panels to easily unfold outwards during use, affecting the stability of the keyboard operation. Furthermore, the limiting components and positioning pieces used to fix the two side panels after folding are overly complex, increasing both the difficulty of operation and manufacturing. These problems not only reduce the user's typing experience but also affect the product's market competitiveness. Therefore, we propose a folding magnetic charging keyboard, aiming to improve portability and ease of use through innovative design and simplified structure, addressing the shortcomings of existing folding keyboards and meeting users' needs for high-performance portable input devices. Utility Model Content

[0005] The purpose of this invention is to provide a foldable magnetic charging keyboard to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A foldable magnetic charging keyboard includes a main keyboard, a first auxiliary keyboard, and a second auxiliary keyboard. The main keyboard has a charging port in the middle of its rear side for connecting to an external power source to charge its built-in battery. The main keyboard has a first U-shaped groove on its left side, near both the front and rear ends, providing rotational connection space for a first connecting rod and a second connecting rod. The main keyboard also has a second U-shaped groove on its right side, near both the front and rear ends. A positive magnetic strip is embedded on the left side of the first auxiliary keyboard. The first auxiliary keyboard also has a third U-shaped groove on its right side, near both the front and rear ends. A first connecting rod is rotatably connected to each of the two third U-shaped grooves. The end of the first connecting rod furthest from the first auxiliary keyboard is rotatably connected to the first U-shaped groove. The first connecting rod connects the main keyboard and the first auxiliary keyboard, enabling folding and rotation.

[0008] The second sub-keyboard has a fourth U-shaped groove on its left side, near both the front and rear ends. A second connecting rod is rotatably connected to each of the two fourth U-shaped grooves. The end of the second connecting rod away from the second sub-keyboard is rotatably connected to the second U-shaped groove, connecting the main keyboard and the second sub-keyboard and enabling folding and rotation. A negative magnetic strip is embedded on the right side of the second sub-keyboard for adsorption and connection with the positive magnetic strip. When the first and second sub-keyboards are folded, the positive and negative magnetic strips are adsorbed and connected, and the folded state is fixed by magnetic attraction.

[0009] Preferably, the circuit board in the first sub-keyboard is electrically connected to the circuit board in the main keyboard via a first wiring harness, and the circuit board in the second sub-keyboard is electrically connected to the circuit board in the main keyboard via a second wiring harness, transmitting electrical signals and power.

[0010] Preferably, a first fixing slot is provided on the rear side of the main keyboard near the left end. The first fixing slot is connected to a first strip plate. The first strip plate is pulled out and then inserted to adjust the insertion position of the first positioning plug, which assists in locking the first secondary keyboard. A first fixing plug is provided on the front side of the first strip plate near the right end. The first fixing plug is inserted into the first fixing slot. A first positioning plug is provided on the front side of the first strip plate near the left end. It is inserted into the first unfolding slot or the first folding slot to lock the state of the first secondary keyboard.

[0011] Preferably, a first unfolding slot is provided on the rear side and near the right end of the first secondary keyboard. When the first secondary keyboard is unfolded, the first positioning block is inserted into the first unfolding slot to lock the unfolded state of the first secondary keyboard.

[0012] Preferably, a first folding slot is provided on the rear side and near the center of the first secondary keyboard. When the first secondary keyboard is folded, the first positioning block is inserted into the first folding slot to lock the folded state of the first secondary keyboard.

[0013] Preferably, a second fixing slot is provided on the rear side of the main keyboard near the right end. The second fixing slot is connected to a second strip plate. The second strip plate is pulled out and then inserted to adjust the insertion position of the second positioning plug, which assists in locking the second sub-keyboard. A second fixing plug is provided on the front side of the second strip plate near the left end. The second fixing plug is inserted into the second fixing slot. A second positioning plug is provided on the front side of the second strip plate near the right end. It is inserted into the second unfolding slot or the second folding slot to lock the state of the second sub-keyboard.

[0014] Preferably, a second unfolding slot is provided on the rear side of the second secondary keyboard near the left end. When the second secondary keyboard is unfolded, the second positioning block is inserted into the second unfolding slot to lock the unfolded state of the second secondary keyboard.

[0015] Preferably, a second folding slot is provided on the rear side and near the center of the second keyboard. When the second keyboard is folded, the second positioning block is inserted into the second folding slot to lock the folded state of the second keyboard.

[0016] Preferably, the bottom of the main keyboard, the first secondary keyboard, and the second secondary keyboard are each provided with four anti-slip pads arranged in a matrix to increase friction and prevent the keyboard from sliding.

[0017] Preferably, the first secondary keyboard has a first limiting protrusion at the top and near the front and rear ends on the left side, and the second secondary keyboard has a second limiting protrusion at the top and near the front and rear ends on the right side. When the first and second secondary keyboards are folded, the ends of the first and second limiting protrusions fit against the top of the main keyboard to prevent the keyboard keys from colliding.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This foldable magnetic charging keyboard uses the attraction between the positive and negative magnetic strips to ensure that the first and second keyboards close when folded, preventing accidental unfolding due to external force and significantly improving reliability and operational stability when carried.

[0020] 2. This foldable magnetic charging keyboard replaces the traditional complex limit spring and reset mechanism by using the cooperation of unfolding slot, folding slot and positioning block. Users only need to pull out the strip plate and adjust the positioning block to lock the unfolded or folded state, which greatly reduces the complexity of operation and simplifies the production process.

[0021] 3. This foldable magnetic charging keyboard features a design where the limiting protrusions fit snugly against the top of the main keyboard, preventing key collisions or damage from pressure when folded; the anti-slip pads effectively reduce keyboard sliding on the desktop, improving safety and stability during use.

[0022] 4. This foldable magnetic charging keyboard has a significantly reduced size when folded. The synergistic effect of magnetic closure and slot positioning makes the device easier to store, balancing portability with a full-size typing experience when unfolded, thus solving the problem of traditional keyboards struggling to balance portability and functionality. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall first-view structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the overall second-view structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the overall folded structure of this utility model;

[0026] Figure 4 This is a partial structural schematic diagram of the present invention;

[0027] Figure 5 This is a schematic diagram of the first keyboard structure in this utility model;

[0028] Figure 6 This is a schematic diagram of the second keyboard structure in this utility model;

[0029] In the diagram: 1. Main keyboard; 10. Charging port; 11. First fixing slot; 12. Second fixing slot; 13. First U-shaped groove; 14. Second U-shaped groove; 2. First secondary keyboard; 20. Third U-shaped groove; 21. First unfolding slot; 22. First folding slot; 23. First limiting protrusion; 3. Second secondary keyboard; 30. Fourth U-shaped groove; 31. Second unfolding slot; 32. Second folding slot; 33. Second limiting protrusion; 4. First connecting rod; 5. Second connecting rod; 6. Positive magnetic strip; 7. Negative magnetic strip; 8. First strip plate; 80. First fixing block; 81. First positioning block; 9. Second strip plate; 90. Second fixing block; 91. Second positioning block; 15. First wiring harness; 16. Second wiring harness; 17. Anti-slip pad. Detailed Implementation

[0030] 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.

[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Please see Figures 1-6 This utility model provides a technical solution:

[0033] A foldable magnetic charging keyboard includes a main keyboard 1, a first auxiliary keyboard 2, and a second auxiliary keyboard 3. The main keyboard 1 has a built-in rechargeable battery. A charging port 10 is provided in the middle of the rear side of the main keyboard 1 for connecting to an external power source to charge the built-in battery. A first U-shaped groove 13 is provided on the left side of the main keyboard 1 near the front and rear ends, providing rotational connection space for a first connecting rod 4 and a second connecting rod 5. A second U-shaped groove 14 is provided on the right side of the main keyboard 1 near the front and rear ends. A positive magnetic strip 6 is embedded on the left side of the first auxiliary keyboard 2. A third U-shaped groove 20 is provided on the right side of the first auxiliary keyboard 2 near the front and rear ends. A first connecting rod 4 is rotatably connected to each of the two third U-shaped grooves 20. The end of the first connecting rod 4 away from the first auxiliary keyboard 2 is rotatably connected to the first U-shaped groove 13. The first connecting rod 4 connects the main keyboard 1 and the first auxiliary keyboard 2 and enables folding and rotation.

[0034] The second keyboard 3 has a fourth U-shaped groove 30 on its left side and near both ends. A second connecting rod 5 is rotatably connected to each of the two fourth U-shaped grooves 30. The end of the second connecting rod 5 away from the second keyboard 3 is rotatably connected to the second U-shaped groove 14, connecting the main keyboard 1 and the second keyboard 3 and enabling folding and rotation. The right side of the second keyboard 3 has a negative magnetic strip 7 for adsorption and connection with the positive magnetic strip 6. When the first keyboard 2 and the second keyboard 3 are folded, the positive magnetic strip 6 and the negative magnetic strip 7 are adsorbed and connected, and the folded state is fixed by magnetic attraction.

[0035] In this embodiment, the circuit board in the first keyboard 2 is electrically connected to the circuit board in the main keyboard 1 through the first wiring harness 15, and the circuit board in the second keyboard 3 is electrically connected to the circuit board in the main keyboard 1 through the second wiring harness 16, transmitting electrical signals and power.

[0036] Specifically, a first fixing slot 11 is provided on the rear side of the main keyboard 1 near the left end. The first fixing slot 11 is connected to a first strip plate 8. The first strip plate 8 is pulled out and then inserted to adjust the insertion position of the first positioning plug 81, which assists in locking the first sub-keyboard 2. A first fixing plug 80 is provided on the front side of the first strip plate 8 near the right end. The first fixing plug 80 is inserted into the first fixing slot 11. A first positioning plug 81 is provided on the front side of the first strip plate 8 near the left end. It is inserted into the first unfolding slot 21 or the first folding slot 22 to lock the state of the first sub-keyboard 2.

[0037] Furthermore, a first unfolding slot 21 is provided on the rear side of the first keyboard 2 near the right end. When the first keyboard 2 is unfolded, the first positioning block 81 is inserted into the first unfolding slot 21 to lock the unfolded state of the first keyboard 2.

[0038] Furthermore, a first folding slot 22 is provided on the rear side of the first keyboard 2 near the center. When the first keyboard 2 is folded, the first positioning block 81 is inserted into the first folding slot 22 to lock the folded state of the first keyboard 2.

[0039] Furthermore, a second fixing slot 12 is provided on the rear side of the main keyboard 1 near the right end. The second fixing slot 12 is connected to a second strip plate 9. The second strip plate 9 can be pulled out and then inserted to adjust the insertion position of the second positioning plug 91, which helps to lock the second sub-keyboard 3. A second fixing plug 90 is provided on the front side of the second strip plate 9 near the left end. The second fixing plug 90 is inserted into the second fixing slot 12. A second positioning plug 91 is provided on the front side of the second strip plate 9 near the right end. It is inserted into the second unfolding slot 31 or the second folding slot 32 to lock the state of the second sub-keyboard 3.

[0040] Furthermore, a second unfolding slot 31 is provided on the rear side of the second keyboard 3 near the left end. When the second keyboard 3 is unfolded, the second positioning block 91 is inserted into the second unfolding slot 31 to lock the unfolded state of the second keyboard 3.

[0041] Furthermore, a second folding slot 32 is provided on the rear side of the second keyboard 3 near the center. When the second keyboard 3 is folded, the second positioning block 91 is inserted into the second folding slot 32 to lock the folded state of the second keyboard 3.

[0042] Furthermore, the bottom of the main keyboard 1, the first secondary keyboard 2, and the second secondary keyboard 3 are each provided with four anti-slip pads 17 arranged in a matrix to increase friction and prevent the keyboard from sliding.

[0043] Furthermore, the top of the first keyboard 2 and near the front and rear ends on the left side are provided with first limiting protrusions 23, and the top of the second keyboard 3 and near the front and rear ends on the right side are provided with second limiting protrusions 33. When the first keyboard 2 and the second keyboard 3 are folded, the ends of the first limiting protrusions 23 and the second limiting protrusions 33 are in contact with the top of the main keyboard 1 to prevent the keyboard keys from colliding.

[0044] In this embodiment, when the foldable magnetic charging keyboard needs to be unfolded, the first keyboard 2 and the second keyboard 3 are held respectively. The first keyboard 2 is rotated outward around the first U-shaped groove 13 on the left side of the main keyboard 1 via the first connecting rod 4. At the same time, the second keyboard 3 is rotated outward around the second U-shaped groove 14 on the right side of the main keyboard 1 via the second connecting rod 5, until the first keyboard 2 and the second keyboard 3 are laid flat with the main keyboard 1 to form a complete input plane. The anti-slip pads 17 at the bottom of the main keyboard 1, the first keyboard 2, and the second keyboard 3 ensure stable placement of the device and prevent slippage. At this time, the first positioning block 81 on the first strip plate 8 is inserted into the first unfolding slot 21 on the rear right side of the first keyboard 2, and the second positioning block 91 on the second strip plate 9 is inserted into the second unfolding slot 21 on the rear left side of the second keyboard 3. Slot 31, locked in the unfolded state; when folding for storage is required, pull out the first strip plate 8 and the second strip plate 9, then flip and fold the first sub-keyboard 2 around the first connecting rod 4 toward the top of the main keyboard 1, and flip and fold the second sub-keyboard 3 around the second connecting rod 5 toward the top of the main keyboard 1 until the first limiting protrusion 23 and the second limiting protrusion 33 are in contact with the top of the main keyboard 1, and are fixed by the positive magnetic strip 6 on the first sub-keyboard 2 and the negative magnetic strip 7 on the second sub-keyboard 3. Then adjust the position of the first positioning plug 81 and the second positioning plug 91, insert the first positioning plug 81 into the first folding slot 22 and the second positioning plug 91 into the second folding slot 32; when charging is required, the power can be replenished at any time through the charging port 10 of the main keyboard 1, and the first wiring harness 15 and the second wiring harness 16 ensure the continuous transmission of signals and power to the sub-keyboard.

[0045] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A foldable magnetic charging keyboard, comprising a main keyboard (1), a first auxiliary keyboard (2) and a second auxiliary keyboard (3), characterized in that: The middle part of the rear side of the main keyboard (1) is provided with a charging port (10), the left side of the main keyboard (1) and close to the front and rear ends are provided with a first U-shaped groove (13), the right side of the main keyboard (1) and close to the front and rear ends are provided with a second U-shaped groove (14), the left side of the first auxiliary keyboard (2) is embedded with a positive magnetic strip (6), the right side of the first auxiliary keyboard (2) and close to the front and rear ends are provided with a third U-shaped groove (20), the first connecting rod (4) is rotatably connected in the two third U-shaped grooves (20), one end of the first connecting rod (4) away from the first auxiliary keyboard (2) is rotatably connected in the first U-shaped groove (13), the left side of the second auxiliary keyboard (3) and close to the front and rear ends are provided with a fourth U-shaped groove (30), the second connecting rod (5) is rotatably connected in the two fourth U-shaped grooves (30), one end of the second connecting rod (5) away from the second auxiliary keyboard (3) is rotatably connected in the second U-shaped groove (14), the right side of the second auxiliary keyboard (3) is embedded with a negative magnetic strip (7) used for being adsorbed and connected with the positive magnetic strip (6).

2. The foldable magnetically-charged keyboard of claim 1, wherein: The circuit board in the first auxiliary keyboard (2) is electrically connected with the circuit board in the main keyboard (1) through the first wire harness (15), and the circuit board in the second auxiliary keyboard (3) is electrically connected with the circuit board in the main keyboard (1) through the second wire harness (16).

3. The foldable magnetically-charged keyboard of claim 1, wherein: The rear side of the main keyboard (1) and close to the left end is provided with a first fixed slot (11), the first fixed slot (11) is connected with a first strip-shaped plate (8), the front side of the first strip-shaped plate (8) and close to the right end is provided with a first fixed plug (80), the first fixed plug (80) is inserted into the first fixed slot (11), and the front side of the first strip-shaped plate (8) and close to the left end is provided with a first positioning plug (81).

4. The foldable magnetically-charged keyboard of claim 3, wherein: The rear side of the first auxiliary keyboard (2) and close to the right end is provided with a first unfolding slot (21), when the first auxiliary keyboard (2) is unfolded, the first positioning plug (81) is inserted into the first unfolding slot (21).

5. The foldable magnetically-charged keyboard of claim 3, wherein: The rear side of the first auxiliary keyboard (2) and close to the middle part is provided with a first folding slot (22), when the first auxiliary keyboard (2) is folded, the first positioning plug (81) is inserted into the first folding slot (22).

6. The foldable magnetically-charged keyboard of claim 1, wherein: The rear side of the main keyboard (1) and close to the right end is provided with a second fixed slot (12), the second fixed slot (12) is connected with a second strip-shaped plate (9), the front side of the second strip-shaped plate (9) and close to the left end is provided with a second fixed plug (90), the second fixed plug (90) is inserted into the second fixed slot (12), and the front side of the second strip-shaped plate (9) and close to the right end is provided with a second positioning plug (91).

7. The foldable magnetically-charged keyboard of claim 6, wherein: The rear side of the second auxiliary keyboard (3) and close to the left end is provided with a second unfolding slot (31), when the second auxiliary keyboard (3) is unfolded, the second positioning plug (91) is inserted into the second unfolding slot (31).

8. The foldable magnetically-charged keyboard of claim 6, wherein: The second folding insertion slot (32) is arranged at the rear side and near the middle of the second auxiliary keyboard (3), and the second positioning insertion block (91) is inserted into the second folding insertion slot (32) when the second auxiliary keyboard (3) is folded.

9. The foldable magnetically-charged keyboard of claim 1, wherein: The bottom of the main keyboard (1), the first auxiliary keyboard (2) and the second auxiliary keyboard (3) is provided with four anti-skid pads (17) arranged in a matrix.

10. The foldable magnetically-charged keyboard of claim 1, wherein: The first limiting convex column (23) is arranged at the top and near the left side of the front and rear ends of the first auxiliary keyboard (2), and the second limiting convex column (33) is arranged at the top and near the right side of the front and rear ends of the second auxiliary keyboard (3), and the end of the first limiting convex column (23) and the second limiting convex column (33) is attached to the top of the main keyboard (1) when the first auxiliary keyboard (2) and the second auxiliary keyboard (3) are folded.

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