CN217305819U

CN217305819U - Telescopic structure and keyboard

Info

Publication number: CN217305819U
Application number: CN202220745866.5U
Authority: CN
Inventors: 邹青青; 潘若昱; 崔灿; 张军
Original assignee: Shenzhen Weiji Technology Co ltd
Current assignee: Shenzhen Weiji Technology Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-08-26
Anticipated expiration: 2032-03-31

Abstract

The utility model provides a extending structure and keyboard relates to keyboard technical field, and extending structure includes drain pan, face-piece, link assembly and drive assembly. The face shell is rotatably connected to the bottom shell, the connecting rod assembly is rotatably connected to the face shell, the driving assembly comprises an expansion piece, the connecting rod assembly is rotatably connected with the expansion piece, the expansion piece can stretch back and forth, so that the connecting rod assembly can rotate relative to the expansion piece and the face shell at the same time, and the connecting rod assembly drives the face shell to rotate relative to the bottom shell to adjust the included angle formed by the face shell and the bottom shell. The telescopic structure can be used for a keyboard, and the face shell can be used as a keyboard typing area. Can control the extensible member and make a round trip to stretch out and draw back, link assembly rotates relative extensible member and face-piece simultaneously, and link assembly orders about the relative drain pan rotation of face-piece and adjusts the contained angle that face-piece and drain pan formed, adjusts the keyboard angle of inclination more convenient and fast, and adjusts accurately.

Description

Telescopic structure and keyboard

Technical Field

The utility model relates to a keyboard technical field especially relates to an extending structure and keyboard.

Background

The keyboard is a necessary tool for computer equipment, and is mainly used for typing and inputting instructions to control the computer to execute corresponding programs. The height and typing habits of each person are different, so that the keyboard needs to be adjusted to form a proper inclination angle with the placing surface, and the experience of the user using the keyboard can be improved. However, the currently common way of adjusting the keyboard is to pad some pads on the bottom of the keyboard to adjust the tilt angle of the keyboard, which is not only time-consuming and labor-consuming, but also unable to adjust the keyboard to a proper angle accurately.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a telescopic structure and a keyboard for adjusting the tilt angle of the keyboard, which is time-consuming, labor-consuming and unable to be adjusted accurately.

The utility model provides a telescopic structure, include:

a bottom case;

the face shell is rotatably connected to the bottom shell;

the connecting rod component is rotatably connected to the face shell;

the driving assembly comprises a telescopic piece, the connecting rod assembly is connected with the telescopic piece in a rotating mode, the telescopic piece can stretch back and forth, so that the connecting rod assembly is opposite to the telescopic piece and the face shell rotate at the same time, and the connecting rod assembly drives the face shell to rotate relative to the bottom shell to adjust the included angle formed by the face shell and the bottom shell.

The telescopic structure can be used for a keyboard, and the face shell can be used as a keyboard typing area. Connecting rod assembly that extending structure includes rotates simultaneously and connects in face-piece and extensible member, when the angle of inclination of keyboard needs regulation, can control driving motor, makes driving motor drive extensible member make a round trip to stretch out and draw back, and connecting rod assembly is relative extensible member and face-piece rotation simultaneously, and connecting rod assembly orders about the relative drain pan of face-piece and rotates and adjust the contained angle that face-piece and drain pan formed, adjusts the keyboard angle of inclination more convenient and fast, and adjusts accurately.

In one embodiment, the connecting rod assembly comprises a first connecting rod, one end of the first connecting rod is rotatably connected with the telescopic piece, and the other end of the first connecting rod is rotatably connected with the face shell; when the driving motor drives the extensible member to extend back and forth, the extensible member drives the face shell to rotate relative to the bottom shell through the first connecting rod.

In one embodiment, the connection position of the first connecting rod and the face shell is a first position, the connection position of the first connecting rod and the telescopic piece is a second position, and the first position is located between the driving motor and the second position; when the telescopic piece extends, the included angle between the face shell and the bottom shell is decreased progressively; when the telescopic piece is shortened, the included angle between the face shell and the bottom shell is increased progressively.

In one embodiment, the connection position of the first connecting rod and the face shell is a first position, the connection position of the first connecting rod and the telescopic piece is a second position, and the second position is located between the driving motor and the first position; when the telescopic piece extends, the included angle between the face shell and the bottom shell increases progressively; when the telescopic piece is shortened, the included angle between the face shell and the bottom shell is decreased progressively.

In one embodiment, the connecting rod assembly comprises a second connecting rod and a third connecting rod, one end of the second connecting rod is rotatably connected with the face shell, the other end of the second connecting rod is rotatably connected with the bottom shell, one end of the third connecting rod is rotatably connected between two ends of the second connecting rod, and the other end of the third connecting rod is rotatably connected with the telescopic piece; the driving motor can drive the extensible member to extend back and forth, so that the third connecting rod rotates relative to the extensible member, the third connecting rod drives the second connecting rod to rotate relative to the bottom shell, and the second connecting rod drives the face shell to rotate relative to the bottom shell so as to adjust an included angle formed by the face shell and the bottom shell.

In one embodiment, the connecting position of the face shell and the bottom shell is a third position, the connecting position of the second connecting rod and the bottom shell is a fourth position, and the connecting position of the third connecting rod and the telescopic piece is a fifth position; the fourth position is located between the third position and the fifth position, when the telescopic piece extends, the included angle between the face shell and the bottom shell decreases progressively, and when the telescopic piece shortens, the included angle between the face shell and the bottom shell increases progressively.

In one embodiment, the connecting position of the face shell and the bottom shell is a third position, the connecting position of the second connecting rod and the bottom shell is a fourth position, and the connecting position of the third connecting rod and the telescopic piece is a fifth position; the fifth position is located between the third position and the fourth position, when the telescopic piece is extended, the included angle between the face shell and the bottom shell is increased progressively, and when the telescopic piece is shortened, the included angle between the face shell and the bottom shell is decreased progressively.

In one embodiment, the telescopic part comprises a slide block and a telescopic rod which are connected, and the slide block is rotationally connected with the connecting rod assembly; the telescopic rod can drive the sliding block to move back and forth by stretching back and forth, so that the sliding block drives the face shell to rotate relative to the bottom shell through the connecting rod assembly.

In one embodiment, the telescopic part further comprises a slide rail, the slide block is slidably arranged on the slide rail, and the telescopic rod can drive the slide block to slide back and forth on the slide rail so as to adjust the included angle between the face shell and the bottom shell.

The utility model also provides a keyboard, including controlling panel and foretell extending structure, it locates to control the panel the face-piece dorsad the one side of drain pan, it is used for the input control instruction to control the panel, it is in to control panel electric connection drive motor is used for control the driving source drives the extensible member makes a round trip to stretch out and draw back.

Drawings

Fig. 1 is a schematic structural diagram of the keyboard of the present invention;

fig. 2 is a schematic cross-sectional view of an embodiment of the keyboard of the present invention;

FIG. 3 is a schematic cross-sectional view of another embodiment of the keyboard of the present invention;

FIG. 4 is a schematic cross-sectional view of another embodiment of the keyboard of the present invention;

FIG. 5 is a schematic cross-sectional view of another embodiment of the keyboard of the present invention;

fig. 6 is a schematic cross-sectional view of another embodiment of the keyboard of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

100. a keyboard; 101. a telescopic structure; 102. an operation panel; 1021. a key area; 1022. a touch screen;

1. a bottom case; 11. an accommodating cavity;

2. a face shell; 21. a typewriting disk surface; 22. a key area; 23. a touch screen; 24. a connecting member; 241. a limiting chute;

3. a drive assembly; 31. a drive motor; 32. a telescoping member; 321. a telescopic rod; 322. a slider; 323. a slide rail; 324. a slide bar;

4. a connecting rod assembly; 41. a first link; 42. a second link; 43. a third link; 44. a connecting member; 441. a chute; 45. and (6) rotating the seat.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It is apparent that the specific details set forth in the following description are merely exemplary of the invention, which can be practiced in many other embodiments that depart from the specific details disclosed herein. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, the present invention provides a keyboard 100, the keyboard 100 is used to connect a host computer, a user can input a control command on a typewriting surface 21 of the keyboard 100, and the host computer can execute a corresponding program after receiving the control command, so that the user can use the host computer. It should be noted that, the keyboard 100 is connected to the host computer, and may be connected through a data line by wire, or may be connected wirelessly through bluetooth or WIFI, which is not limited herein.

The keyboard 100 can also adjust the inclination angle between the keyboard surface 21 and the placing surface, and the user can adjust the inclination angle to the angle that the user wants to, so that the comfort level that the user inputs the control command on the keyboard surface 21 is high, and the user experience is good.

The keyboard 100 includes a telescopic structure 101 and an operation panel 102, and the operation panel 102 and the typeface 21 are both disposed on the telescopic structure 101. The user can manipulate the operation panel 102 to adjust the tilt angle between the typewriter surface 21 and the placement surface.

The operation panel 102 includes a key region 1021 and a touch screen 1022, wherein the key region 1021 and the touch screen 1022 are disposed on the typing surface 21 at intervals. The button area 1021 has a plurality of buttons for typing, which is convenient for the user to press the buttons to input control commands. In addition, the user may control one or more of the keys to control the tilt angle between the keyboard surface 21 and the placement surface.

The touch screen 1022 allows the user to input control commands for controlling the tilt angle between the surface 21 of the keyboard and the placement surface. In addition, the touch screen 1022 can also display the angle of the included angle formed by the current typewriting disk surface 21 and the placing surface, so that the user can check the included angle accurately and adjust the angle conveniently. Wherein, the placing surface can be a supporting surface such as a desktop or a ground surface.

Referring to fig. 1, the telescopic structure 101 includes a bottom case 1 and a face case 2, and one end of the bottom case 1 is rotatably connected to one end of the face case 2. The bottom case 1 is used for being placed on a placing surface such as a desktop, and the typewriting board surface 21 is located on the surface of the face case 2 back to the bottom case 1. The user can rotate face-piece 2 relative drain pan 1 to adjust the contained angle that typewriting quotation 21 and placed the face formed, thereby improve the comfort level of typing.

The bottom shell 1 is substantially rectangular, the bottom shell 1 has an accommodating cavity 11 inside, the accommodating cavity 11 is used for storing electronic components of the keyboard 100, and the accommodating cavity 11 can also accommodate the face shell 2 when an included angle formed by the face shell 2 and the bottom shell 1 is reduced, so as to reduce the occupied space of the whole keyboard 100.

One end of the face shell 2 is rotatably connected with the bottom shell 1 in the accommodating cavity 11, and the other end of the face shell 2 can be far away from or close to the bottom shell 1 relatively to adjust the included angle formed by the face shell 2 and the bottom shell 1, and adjust the included angle formed by the typing disk surface 21 and the placing surface. The key area 1021 and the touch screen 1022 are both located on a surface of the face casing 2 facing away from the bottom casing 1, so as to facilitate the user to operate, and adjust an included angle formed between the typewriting surface 21 and the placement surface.

The telescopic structure 101 further comprises a driving assembly 3 and a connecting rod assembly 4, wherein the driving assembly 3 and the connecting rod assembly 4 are both located in the accommodating cavity 11 of the bottom shell 1. The driving element 3 is fixedly connected to the bottom case 1, and the driving element 3 is further electrically connected to the touch screen 1022 and the keys. The connecting rod assembly 4 is connected to both the driving assembly 3 and the face housing 2. The user can input a control instruction through the touch screen 1022 or the keys, and after receiving the control instruction, the driving assembly 3 drives the connecting rod assembly 4 to move, and the connecting rod assembly 4 drives the face casing 2 to rotate relative to the bottom casing 1, so as to adjust an included angle formed by the typewriting surface 21 and the bottom casing 1.

Referring to fig. 2, the driving assembly 3 includes a driving motor 31 and a telescopic member 32, the driving motor 31 is connected to the bottom case 1, one end of the telescopic member 32 is connected to the driving motor 31, and the other end is rotatably connected to the link assembly 4. The driving motor 31 is used for driving the telescopic member 32 to extend back and forth so that the telescopic member 32 drives the connecting rod assembly 4 to move, and the connecting rod assembly 4 drives the face shell 2 to rotate relative to the bottom shell 1, so that the included angle formed by the typing disk face 21 and the bottom shell 1 is adjusted.

The telescopic member 32 comprises a telescopic rod 321, a sliding block 322 and a sliding rail 323, one end of the telescopic rod 321 is connected with the driving motor 31, and the other end of the telescopic rod 321 is connected with the sliding block 322. The sliding block 322 is slidably disposed on the sliding rail 323, and can slide back and forth on the sliding rail 323, and the sliding block 322 is further rotatably connected to the connecting rod assembly 4.

The driving motor 31 is used for driving the telescopic rod 321 to extend back and forth, so that the telescopic rod 321 drives the sliding block 322 to slide back and forth on the sliding rail 323. When the sliding block 322 slides back and forth on the sliding rail 323, the sliding block 322 can drive the connecting rod assembly 4 to move, so that the connecting rod assembly 4 drives the face casing 2 to rotate relative to the bottom casing 1, thereby adjusting an included angle formed between the typewriting disk surface 21 and the bottom casing 1.

The driving motor 31 of the embodiment shown in fig. 2 is electrically connected to the touch screen 1022 and the keys. When a user inputs a control instruction through the touch screen 1022 or the keys, the driving motor 31 can receive the control instruction and drive the telescopic rod 321 to extend and retract back and forth according to the control instruction, so as to adjust an included angle formed between the typewriting board surface 21 and the bottom case 1.

Referring to fig. 3, the telescopic member 32 of the embodiment shown in fig. 3 further includes a sliding rod 324, one end of the sliding rod 324 is connected to the telescopic rod 321, and the other end of the sliding rod 324 penetrates through the bottom case 1 and extends out of the bottom case 1. The user can hold the position of the sliding rod 324, which is located outside the bottom case 1, to drive the telescopic rod 321 to extend back and forth, and the telescopic rod 321 drives the sliding block 322 to slide back and forth on the sliding rail 323, so as to adjust the included angle formed between the surface 21 of the typewriter disk and the bottom case 1.

It should be noted that, in the embodiment shown in fig. 3, the sliding rod 324 may also be omitted, one end of the telescopic rod 321, which is opposite to the sliding block 322, is directly extended to the outside of the bottom case 1, and a user can hold a portion of the telescopic rod 321, which is located outside the bottom case 1, to drive the telescopic rod 321 to extend back and forth.

The sliding block 322 includes a pivot joint position disposed on a side surface thereof, and the sliding block 322 is rotatably connected to the connecting rod assembly 4 through the pivot joint position. When the sliding block 322 slides back and forth on the sliding rail 323, the connecting rod assembly 4 rotates relative to the sliding block 322, so that the connecting rod assembly 4 drives the face casing 2 to rotate relative to the bottom casing 1.

Referring to fig. 2, the link assembly 4 of the embodiment shown in fig. 2 includes only one link, i.e., the first link 41. One end of the first link 41 is rotatably connected to the pivot position of the slider 322, and the other end of the first link 31 is rotatably connected to the panel housing 2 through the other pivot position. When the slide block 322 slides back and forth on the slide rail 323, the first link 41 rotates relative to the slide block 322 and the face casing 2, and the first link 41 drives the face casing 2 to rotate relative to the bottom casing 1.

The position where the first link 41 is connected to the front case 2 is defined as a first position, and the position where the first link 41 is connected to the slider 322 is defined as a second position.

The second position of the embodiment shown in fig. 2 is located between the driving motor 31 and the first position, when the driving motor 31 drives the telescopic rod 321 to extend, the telescopic rod 321 drives the first connecting rod 41 to rotate, the first connecting rod 41 drives the face casing 2 to rotate relative to the bottom casing 1, and the angle between the face casing 2 and the bottom casing 1 decreases progressively. Similarly, when the telescopic rod 321 is shortened, the included angle between the face shell 2 and the bottom shell 1 is increased progressively.

The first position of the embodiment shown in fig. 4 is located between the driving motor 31 and the second position, when the driving motor 31 drives the telescopic rod 321 to extend, the telescopic rod 321 drives the first connecting rod 41 to rotate, the first connecting rod 41 drives the face casing 2 to rotate relative to the bottom casing 1, and the angle between the face casing 2 and the bottom casing 1 increases progressively. Similarly, when the telescopic rod 321 is shortened, the angle between the face shell 2 and the bottom shell 1 decreases progressively.

Therefore, the user can control the driving motor 31 to drive the telescopic rod 321 to extend or shorten according to actual needs, so as to increase or decrease the angle between the face casing 2 and the bottom casing 1. The specific increasing or decreasing angle degree can be realized by adjusting the distance of the driving motor 31 to control the extension or contraction of the telescopic rod 321.

Referring to fig. 5, the link assembly 4 of the embodiment shown in fig. 5 includes two links, i.e., a second link 42 and a third link 43. One end of the second link 42 is rotatably connected to the panel housing 2 through a pivot joint, and the other end of the second link 42 is rotatably connected to the driving motor 31. One end of the third link 43 is rotatably connected to the pivot joint between the two ends of the second link 42, and the other end of the third link 43 is rotatably connected to the slider 322.

When the included angle formed by the face shell 2 and the bottom shell 1 needs to be adjusted, a user can input a control instruction through the touch screen 1022 or the keys 22, the driving motor 31 controls the telescopic rod 321 to extend and retract back and forth after receiving the control instruction, the telescopic rod 321 drives the third connecting rod 43 to move, the third connecting rod 43 drives the second connecting rod 42 to move, the second connecting rod 42 drives the face shell 2 to rotate relative to the bottom shell 1, and therefore the included angle formed by the face shell 2 and the bottom shell 1 is adjusted.

The connecting position of the front shell 2 and the bottom shell 1 is a third position, the connecting position of the second connecting rod 42 and the bottom shell 1 is a fourth position, and the connecting position of the third connecting rod 43 and the sliding block 33 is a fifth position.

The fourth position of the embodiment shown in fig. 5 is located between the third position and the fifth position, when the driving motor 31 controls the extension rod 321 to extend, the extension rod 321 drives the third link 43 to rotate relative to the slider 322, the third link 43 drives the second link 42 to rotate relative to the driving motor 31, the second link 42 drives the face casing 2 to rotate relative to the bottom casing 1, and the included angle between the face casing 2 and the bottom casing 1 decreases progressively. Similarly, when the driving motor 31 controls the telescopic rod 321 to shorten, the angle between the face shell 2 and the bottom shell 1 increases progressively.

The fifth position of the embodiment shown in fig. 6 is located between the third position and the fourth position, when the driving motor 31 controls the extension rod 321 to extend, the extension rod 321 drives the third connecting rod 43 to rotate relative to the sliding block 322, the third connecting rod 43 drives the second connecting rod 42 to rotate relative to the driving motor 31, the second connecting rod 42 drives the face casing 2 to rotate relative to the bottom casing 1, and the included angle between the face casing 2 and the bottom casing 1 increases progressively. Similarly, when the driving motor 31 controls the telescopic rod 321 to shorten, the angle between the face shell 2 and the bottom shell 1 decreases progressively.

Therefore, a user can control the driving motor 31 to drive the telescopic rod 321 to extend or shorten according to actual needs, so that the angle of the included angle formed by the face shell 2 and the bottom shell 1 is increased or decreased progressively. The specific increasing or decreasing angle degree can be realized by adjusting the distance that the driving motor 31 controls the extension or contraction of the telescopic rod 321.

Referring to fig. 5 and 6, the connecting rod assembly 4 further includes a connecting member 44 and a rotating seat 45, the connecting member 44 is provided with a sliding groove 441 along a length direction thereof, and the rotating seat 45 is slidably engaged with the sliding groove 441 and can slide along the length direction of the sliding groove 441.

One end of the second connecting rod 42 close to the connecting piece 44 is rotatably connected with the rotating seat 45, when the third connecting rod 43 drives the second connecting rod 42 to rotate relative to the driving motor 31, the second connecting rod 42 drives the face shell 2 to rotate relative to the bottom shell 1 through the rotating seat 45, and meanwhile, the second connecting rod 42 also drives the rotating seat 45 to slide in the sliding groove 441, so that the telescopic stroke of the telescopic rod 321 is reduced, and the included angle formed by the bottom shell 1 and the face shell 2 can be more quickly adjusted.

It should be noted that, the connecting rod assembly 4 is further described by taking only one and two connecting rods as an example, the number of the connecting rods included in the connecting rod assembly 4 is not limited, and the connecting rod assembly 4 may further include three or more connecting rods, and two adjacent connecting rods are rotatably connected. When the telescopic rod 321 stretches, the plurality of connecting rods are linked with each other, and the face shell 2 can be driven to rotate relative to the bottom shell 1.

In an alternative embodiment, the sliding block 322 may not be provided, and the first connecting rod 41 or the third connecting rod 43 is directly connected to the telescopic rod 321 in a rotating manner, and when the telescopic rod 321 extends back and forth, the telescopic rod 321 can also drive the first connecting rod 41 or the third connecting rod 43 to rotate, so as to change an included angle between the front shell 2 and the bottom shell 1.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, substitutions and improvements can be made, and all of them should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the claims.

Claims

1. A telescoping structure, comprising:

a bottom case;

the face shell is rotatably connected to the bottom shell;

the connecting rod component is rotatably connected to the face shell;

drive assembly, including extensible member and driving motor, driving motor with the one end of extensible member is connected, link assembly rotates to be connected the extensible member, the extensible member can make a round trip to stretch out and draw back, so that link assembly is relative simultaneously the extensible member reaches the face-piece rotates, link assembly orders about the face-piece is relative the drain pan rotates and adjusts the face-piece with the contained angle that the drain pan formed.

2. The telescoping structure of claim 1 wherein the linkage assembly comprises a first link, one end of the first link being pivotally connected to the telescoping member and the other end of the first link being pivotally connected to the face shell; when the driving motor drives the extensible member to extend back and forth, the extensible member drives the face shell to rotate relative to the bottom shell through the first connecting rod so as to adjust an included angle formed by the face shell and the bottom shell.

3. The telescopic structure according to claim 2, wherein the position where the first link is connected to the face housing is a first position, the position where the first link is connected to the telescopic member is a second position, and the first position is between the driving motor and the second position; when the telescopic piece extends, the included angle between the face shell and the bottom shell is decreased progressively; when the telescopic piece is shortened, the included angle between the face shell and the bottom shell is increased progressively.

4. The telescopic structure according to claim 2, wherein the position of the connection of the first link with the face housing is a first position, the position of the connection of the first link with the telescopic member is a second position, and the second position is between the driving motor and the first position; when the telescopic piece extends, the included angle between the face shell and the bottom shell increases progressively; when the telescopic piece is shortened, the included angle between the face shell and the bottom shell is decreased progressively.

5. The telescopic structure according to claim 1, wherein the connecting rod assembly comprises a second connecting rod and a third connecting rod, one end of the second connecting rod is rotatably connected with the face shell, the other end of the second connecting rod is rotatably connected with the bottom shell, one end of the third connecting rod is rotatably connected between two ends of the second connecting rod, and the other end of the third connecting rod is rotatably connected with the telescopic member; the driving motor can drive the extensible member to extend back and forth, so that the third connecting rod rotates relative to the extensible member, the third connecting rod drives the second connecting rod to rotate relative to the bottom shell, and the second connecting rod drives the face shell to rotate relative to the bottom shell so as to adjust an included angle formed by the face shell and the bottom shell.

6. The telescopic structure according to claim 5, wherein the connecting position of the face shell and the bottom shell is a third position, the connecting position of the second connecting rod and the bottom shell is a fourth position, and the connecting position of the third connecting rod and the telescopic member is a fifth position; the fourth position is located between the third position and the fifth position, when the telescopic piece extends, the included angle between the face shell and the bottom shell decreases progressively, and when the telescopic piece shortens, the included angle between the face shell and the bottom shell increases progressively.

7. The telescopic structure according to claim 5, wherein the connecting position of the face shell and the bottom shell is a third position, the connecting position of the second connecting rod and the bottom shell is a fourth position, and the connecting position of the third connecting rod and the telescopic member is a fifth position; the fifth position is located between the third position and the fourth position, when the telescopic piece is extended, the included angle between the face shell and the bottom shell is increased progressively, and when the telescopic piece is shortened, the included angle between the face shell and the bottom shell is decreased progressively.

8. The telescoping structure of claim 1, wherein the telescoping member comprises a slider and a telescoping rod connected, the slider being rotationally connected to the linkage assembly; the telescopic rod can drive the sliding block to move back and forth by stretching back and forth, so that the sliding block drives the face shell to rotate relative to the bottom shell through the connecting rod assembly.

9. The telescopic structure of claim 8, wherein the telescopic member further comprises a slide rail, the slider is slidably disposed on the slide rail, and the telescopic rod can drive the slider to slide back and forth on the slide rail to adjust an included angle between the face shell and the bottom shell.

10. A keyboard, comprising a control panel and the telescopic structure of any one of claims 1 to 9, wherein the control panel is disposed on a surface of the front shell facing away from the bottom shell, the control panel is used for inputting a control command, and the control panel is electrically connected to the driving motor and used for controlling the driving motor to drive the telescopic member to extend and retract back and forth.