Keyboard

Abstract

The keyboard comprises a keyboard body and a protective sleeve, the protective sleeve comprises a bottom plate, a first folded plate and a second folded plate, the first folded plate and the second folded plate are flexibly connected with each other, and the lower edge of the first folded plate is hinged to the side edge of the bottom plate; the keyboard body is installed on the bottom plate in a front-back sliding mode through a sliding mechanism, and a supporting plate is arranged at the rear end of the keyboard body. The sliding mechanism comprises a base plate, a sliding plate and an elastic element, and the base plate is fixed on the bottom plate; the sliding plate is fixed on the lower surface of the keyboard body and is positioned on the substrate in a sliding manner; the elastic element is connected between the base plate and the sliding plate in an inclined mode. Therefore, the keyboard body is combined on the bottom plate through the sliding mechanism, so that the keyboard body can slide back and forth relative to the bottom plate to adapt to different viewing angles of the display device; meanwhile, the keyboard body can be kept in a self-locking state at the limiting positions of the front end and the rear end, the position stability of the keyboard body after sliding adjustment is improved, and the use experience of the product is better.

Description

Technical Field

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

[0002] Existing portable wireless keyboards are usually combined with leather cases to cooperate with tablet computers. Since the existing wireless keyboards are directly adsorbed on the leather cases by magnetic attraction, their positions and distances relative to the tablet computers are relatively fixed, and they cannot adjust the positions of the wireless keyboards as the angles of the tablet computers are adjusted, which brings a lot of inconvenience to users. Therefore, keyboards that can be slid back and forth have emerged on the market. However, such keyboards cannot be self-locked in position after sliding adjustment or need to add auxiliary components for fixation, resulting in complex keyboard structures and easy forward and backward sliding, resulting in poor product stability. Therefore, the existing keyboard structure should be improved to solve the above problems. Summary of the Invention

[0003] In view of this, in view of the deficiencies of the existing technology, the main purpose of the present utility model is to provide a keyboard. By using a sliding mechanism to combine the keyboard body on the bottom plate of the protective case, the keyboard body can slide back and forth relative to the bottom plate to adapt to different viewing angles of the display device. At the same time, the keyboard body can maintain a self-locking state at the extreme positions at the front and rear ends, improving the position stability after the sliding adjustment of the keyboard body and making the use experience of the product better.

[0004] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0005] A keyboard, which includes a keyboard body and a protective case. The protective case includes a bottom plate, a first folding plate and a second folding plate. The first folding plate and the second folding plate are flexibly connected to each other, and the lower edge of the first folding plate is hinged to the side edge of the bottom plate. The keyboard body is slidably installed on the bottom plate through a sliding mechanism, and a support plate is arranged along the transverse direction of the keyboard body near the rear end of the bottom plate. The sliding mechanism includes a base plate, a sliding plate and an elastic element connected between the base plate and the sliding plate. The base plate is fixed on the bottom plate, the sliding plate is fixed on the lower surface of the keyboard body and can slide on the base plate. The elastic element is in a wave shape and is obliquely connected between the base plate and the sliding plate. When the keyboard body slides forward in place, the support plate fits with the rear end edge of the bottom plate. When the keyboard body slides backward in place, the support plate and the bottom plate jointly support the keyboard body.

[0006] As a preferred solution: a groove is provided on the bottom plate corresponding to the base plate, and the base plate is embedded in the groove.

[0007] As a preferred solution: the substrate is adhered or riveted and fixed in the groove; the sliding plate is adhered or riveted on the lower surface of the keyboard body.

[0008] As a preferred solution: a first connecting portion is provided at a position near the end of the substrate, a second connecting portion is provided on the sliding plate, and both ends of the elastic element form a connecting ring corresponding to the first connecting portion and the second connecting portion. One connecting ring at one end of the elastic element is rotatably connected to the first connecting portion, and the other connecting ring at the other end of the elastic element is rotatably connected to the second connecting portion.

[0009] As a preferred solution: the two side edges of the substrate are upturned to form slide rails, and sliding grooves are respectively provided on both sides of the sliding plate corresponding to the slide rails, and the sliding grooves are slidably covered outside the slide rails.

[0010] As a preferred solution: the elastic element includes the connecting ring and an elastic portion connected in a wave shape between the two end connecting rings, and the elastic portion has a plurality of bending portions that provide an elastic deformation driving force for the elastic element.

[0011] As a preferred solution: an arc-shaped block for guiding and limiting the rotation and deformation of the elastic element when the sliding plate slides is wound around the outside of the first connecting portion in an arc shape. There is a rotation gap between the arc-shaped block and the first connecting portion for the connecting ring of the elastic element to rotate; and a transition arc is provided between the connecting ring connected to the first connecting portion and the adjacent bending portion, and the outer side wall of the arc-shaped block is adapted to the transition arc.

[0012] As a preferred solution: two second connecting portions are provided on the sliding plate, one end of the elastic element is connected to one of the two second connecting portions, and the other end is connected to the first connecting portion.

[0013] As a preferred solution: the width of the keyboard body is adapted to the width of the bottom plate; an embedding groove is provided at the rear edge of the bottom plate corresponding to the support plate. After the keyboard body slides forward in place, the support plate is located in the embedding groove, and the lower end of the support plate is flush with the lower end of the bottom plate.

[0014] As a preferred solution: two sets of sliding mechanisms are provided between the keyboard body and the protective cover.

[0015] The utility model has obvious advantages and beneficial effects compared with the prior art. Specifically, as can be seen from the above technical solution, by combining the keyboard body with the bottom plate of the protective case through a sliding mechanism, the keyboard body can slide back and forth relative to the bottom plate to adapt to different viewing angles of the display device; and, through the obliquely arranged elastic element, the keyboard body is urged to maintain a self-locking state at the extreme positions at both front and rear ends, so that the keyboard body will not easily slide after adjustment. Thus, the position stability after the sliding adjustment of the keyboard body is improved, and the use experience of the product is better.

[0016] To more clearly elaborate on the structural features and functions of the utility model, the following will be a detailed description thereof in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the forward sliding state of the keyboard body of the utility model relative to the bottom plate of the protective case

[0018] Schematic diagram;

[0019] Figure 2 Schematic diagram of the backward sliding state of the keyboard body of the utility model relative to the bottom plate of the protective case

[0020] Schematic diagram;

[0021] Figure 3 Schematic three-dimensional diagram of the separation of the keyboard main body and the protective case of the utility model;

[0022] Figure 4 Schematic three-dimensional diagram of the separation of the sliding mechanism and the protective case of the utility model;

[0023] Figure 5 Schematic three-dimensional diagram of the sliding mechanism of the utility model;

[0024] Figure 6 Schematic diagram of the state after the sliding plate slides relative to the substrate of the utility model;

[0025] Figure 7 Schematic three-dimensional diagram of the separation of the sliding plate and the substrate of the utility model;

[0026] Figure 8 Schematic three-dimensional diagram of the separation of the sliding plate and the substrate of the utility model from another perspective.

[0027] Description of the reference numerals in the drawings:

[0028] 10. Keyboard body; 11. Support plate; 20. Protective cover; 21. Bottom plate; 211. Groove; 212. Embedded groove; 22. First folding plate; 23. Second folding plate; 30. Sliding mechanism; 31. Substrate; 311. First connecting part; 312. Arc-shaped block; 313. Rotation gap; 314. Slide rail; 315. Limit latch; 32. Slide plate; 321. Second connecting part; 322. Slide groove; 33. Elastic element; 331. Connecting ring; 332. Elastic part; 333. Bent part; 334. Transition arc; 34. Riveting hole. Detailed implementation

[0029] As shown in the present utility model Figures 1 to 8 There is shown a keyboard, comprising a keyboard body 10 and a protective cover 20, wherein:

[0030] The protective cover 20 includes a bottom plate 21, a first folding plate 22 and a second folding plate 23. The first folding plate 22 and the second folding plate 23 are flexibly connected to each other, and the first folding plate 22 and the second folding plate 23 can be folded relative to each other; the lower edge of the first folding plate 22 is hinged to the side edge of the bottom plate 21, so that the first folding plate 22 can be turned and folded relative to the bottom plate 21.

[0031] The keyboard body 10 is slidably mounted on the bottom plate 21 in a front-back sliding manner through a sliding mechanism 30. The slidable design of the keyboard body 10 relative to the bottom plate 21 enables the position of the keyboard body 10 to be flexibly adjusted, thereby meeting the user's requirement for adjusting the front-back position of the keyboard when facing different elevation angles of the screen. A support plate 11 is provided at the rear end position of the keyboard body 10 along its transverse direction and downward. The support plate 11 can support the support plate 11 after the keyboard body 10 slides backward relative to the bottom plate 21 in place, so as to improve the placement stability of the keyboard body 10 and prevent the rear end of the keyboard body 10 from being suspended and causing uneven force and imbalance. In addition, an embedded groove 212 is provided at the rear end edge of the bottom plate 21 corresponding to the support plate 11. After the keyboard body 10 slides forward in place, the support plate 11 will be located in the embedded groove 212, and the outer edge of the support plate 11 is flush with the rear side edge of the bottom plate 21, so that the overall appearance is flat after the keyboard body 10 and the bottom plate 21 are combined.

[0032] The width of the keyboard body 10 is adapted to the width (front-back direction) of the bottom plate 21. After the keyboard body 10 slides forward in place, the support plate 11 fits with the rear end edge of the bottom plate 21; after the keyboard body 10 slides backward in place, the support plate 11 and the bottom plate 21 jointly support the keyboard body 10. Two sets of sliding mechanisms 30 are provided between the keyboard body 10 and the protective cover 20, and the two sets of sliding mechanisms 30 are arranged at intervals, which can not only improve the bonding stability between the keyboard body 10 and the bottom plate 21, but also improve the sliding balance of the keyboard body 10 relative to the bottom plate 21.

[0033] The sliding mechanism 30 includes a base plate 31, a sliding plate 32, and an elastic element 33 connected between the base plate 31 and the sliding plate 32. A groove 211 is provided on the bottom plate 21 corresponding to the base plate 31; a plurality of riveting holes 34 are respectively arranged at intervals on both sides of the base plate 31 and the sliding plate 32; the base plate 31 is embedded and fixed in the groove 211 by adhesion or riveting, and limiting feet 315 for limiting and fixing with both ends of the groove 211 are respectively arranged at both ends of the base plate 31 to improve the installation stability of the base plate 31. The sliding plate 32 is fixed on the lower surface of the keyboard body 10 by adhesion or riveting and is slidably located on the base plate 31. The sliding of the sliding plate 32 and the base plate 31 adopts the cooperation form of a slide rail 314 and a chute 322. Specifically, the two side edges of the base plate 31 are upturned to form the slide rail 314, and the sliding plate 32 is respectively provided with chutes 322 corresponding to the slide rail 314 on both sides, and the chutes 322 can be slidably wrapped outside the slide rail 314.

[0034] The elastic element 33 is in a wavy shape and is obliquely connected between the base plate 31 and the sliding plate 32. Specifically, a first connecting portion 311 is provided at a position near the end of the base plate 31, and a second connecting portion 321 is provided on the sliding plate 32; connecting rings 331 are formed at both ends of the elastic element 33 corresponding to the first connecting portion 311 and the second connecting portion 321. The connecting ring 331 at one end of the elastic element 33 is rotatably connected to the first connecting portion 311, and the connecting ring 331 at the other end of the elastic element 33 is rotatably connected to the second connecting portion 321. In this embodiment, two second connecting portions 321 are provided on the sliding plate 32, and one end of the elastic element 33 is connected to one of the two second connecting portions 321. The two second connecting portions 321 are arranged side by side, and the distances between the two second connecting portions 321 and the first connecting portion 311 are different. The closer the distance is, the smaller the deformation space of the elastic element 33 is, and the greater the elastic driving force given to the sliding plate 32 is. Specifically, one of the two second connecting portions 321 can be selected according to needs to connect the end of the elastic element 33.

[0035] The elastic element 33 is made of bent steel wire. The steel wire is bent into a wavy shape with multiple bending parts 333, and the elastic deformation of the steel wire when being extruded provides an elastic pushing force for the sliding plate 32. Specifically, the elastic element 33 includes the connecting rings 331 at both ends and an elastic part 332 connected in a wavy shape between the connecting rings 331 at both ends. The elastic part 332 has multiple bending parts 333 that provide driving force for the elastic deformation of the elastic element 33. An arc-shaped block 312 for guiding and limiting the rotation and deformation of the elastic element 33 when sliding with the sliding plate 32 is arranged in an arc shape outside the first connecting part 311. There is a rotation gap 313 for the connecting ring 331 of the elastic element 33 to rotate between the arc-shaped block 312 and the first connecting part 311, so that the end of the elastic element 33 can rotate flexibly when moving with the sliding plate 32. A transition arc 334 is arranged between the connecting ring 331 of the elastic element 33 connected to the first connecting part 311 and the adjacent bending part 333, and the outer side wall of the arc-shaped block 312 is adapted to the transition arc 334. When the other end of the elastic element 33 rotates around the first connecting part 311 as the sliding plate 32 moves, the transition arc 334 will finally abut against the outer side wall of the arc-shaped block 312, and the arc-shaped block 312 limits the rotation amplitude of the elastic element 33 to prevent it from being deformed excessively and unable to reset. The front end and the rear end of the base plate 31 are two limit positions for the sliding plate 32 to slide relative to the base plate 31. Whether the sliding plate 32 slides to the front end or the rear end of the base plate 31, the elastic element 33 will elastically push and fix the sliding plate 32 at the limit position, forming a self-locking state without external force interference. Thereby, the front-back movement of the keyboard body 10 is prevented, and the stability of the keyboard body 10 after adjustment is improved.

[0036] The usage method and working principle of this keyboard are as follows: When it is necessary to slide the keyboard body 10 to the rear end of the bottom plate 21 of the protective cover 20, just slide the keyboard body 10 backward. The elastic element 33 will push the sliding plate 32 to keep it fixed relative to the rear end of the base plate 31. At the same time, the lower end of the support plate 11 is flush with the lower end of the bottom plate 21, and the support plate 11 provides support for the part of the keyboard body 10 that extends beyond the bottom plate 21. When it is necessary to slide the keyboard body 10 to the front end of the bottom plate 21 of the protective cover 20, just operate in the reverse direction. At this time, the support plate 11 is embedded in the embedding groove 212 at the rear end of the bottom plate 21, and the keyboard body 10 and the protective cover 20 are completely combined to form an integral body with flush edges.

[0037] The design focus of the present utility model lies in that, by combining the keyboard body with the bottom plate of the protective case through a sliding mechanism, the keyboard body can slide back and forth relative to the bottom plate to adapt to different viewing angles of the display device; and, through the obliquely arranged elastic element, the keyboard body is urged to maintain a self-locking state at the extreme positions at both front and rear ends, so that the keyboard body will not easily slide after adjustment. Thus, the position stability after the sliding adjustment of the keyboard body is improved, and the use experience of the product is better.

[0038] The above is only a preferred embodiment of the present utility model, and does not impose any limitation on the technical scope of the present utility model. Therefore, any minor modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A keyboard, characterized in that: It includes a keyboard body and a protective cover. The protective cover includes a bottom plate, a first folding plate and a second folding plate. The first folding plate and the second folding plate are flexibly connected to each other, and the lower edge of the first folding plate is hinged to the side edge of the bottom plate. The keyboard body is slidably mounted on the bottom plate through a sliding mechanism, and a support plate is arranged along the transverse direction of the keyboard body near the rear end of the bottom plate. The sliding mechanism includes a base plate, a sliding plate and an elastic element connected between the base plate and the sliding plate. The base plate is fixed on the bottom plate, the sliding plate is fixed on the lower surface of the keyboard body and is slidably located on the base plate. The elastic element is wavy and is obliquely connected between the base plate and the sliding plate. When the keyboard body slides forward in place, the support plate fits with the rear end edge of the bottom plate. When the keyboard body slides backward in place, the support plate and the bottom plate jointly support the keyboard body.

2. The keyboard according to claim 1, characterized in that: A groove is provided on the bottom plate corresponding to the base plate, and the base plate is embedded in the groove.

3. The keyboard according to claim 2, wherein: The base plate is adhered or riveted and fixed in the groove; the sliding plate is adhered or riveted to the lower surface of the keyboard body.

4. The keyboard according to claim 1, wherein: A first connecting portion is arranged at a position near the end of the base plate, a second connecting portion is arranged on the sliding plate, and both ends of the elastic element form connecting rings corresponding to the first connecting portion and the second connecting portion. One connecting ring at one end of the elastic element is rotatably connected to the first connecting portion, and the other connecting ring at the other end of the elastic element is rotatably connected to the second connecting portion.

5. The keyboard according to claim 1, wherein: The two side edges of the base plate are upturned to form slide rails, and sliding grooves are respectively arranged on both sides of the sliding plate corresponding to the slide rails, and the sliding grooves can slidably cover the outside of the slide rails.

6. The keyboard according to claim 4, wherein: The elastic element includes the connecting rings and an elastic portion connected in a wavy shape between the two end connecting rings. The elastic portion has a plurality of bending portions that provide elastic deformation driving force for the elastic element.

7. The keyboard according to claim 6, characterized in that: An arc-shaped block for guiding and limiting the rotation and deformation of the elastic element when the sliding plate slides is wound around the outside of the first connecting portion in an arc shape. There is a rotation gap between the arc-shaped block and the first connecting portion for the connecting ring of the elastic element to rotate. And a transition arc is arranged between the connecting ring connected to the first connecting portion and the adjacent bending portion, and the outer side wall of the arc-shaped block is adapted to the transition arc.

8. The keyboard according to claim 4, characterized in that: Two second connecting portions are arranged on the sliding plate, one end of the elastic element is connected to one of the two second connecting portions, and the other end is connected to the first connecting portion.

9. The keyboard according to claim 1, characterized in that: The width of the keyboard body is adapted to the width of the bottom plate. An embedding groove is provided on the rear end edge of the bottom plate corresponding to the support plate. After the keyboard body slides forward in place, the support plate is located in the embedding groove, and the lower end of the support plate is flush with the lower end of the bottom plate.

10. The keyboard according to claim 1, wherein: Two sets of sliding mechanisms are arranged between the keyboard body and the protective cover.

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