Lifting rotary keyboard device

Abstract

The utility model discloses a lifting rotary type keyboard device which comprises a back plate body, a connecting plate body, a keyboard, an electronic product mounting assembly and a lifting locking device. The connecting plate body is pivotally connected with the keyboard, and the back plate body is pivotally connected with the connecting plate body through a pivoting connecting piece; the pivoting connecting piece comprises a pivoting shaft, a first sleeving piece and a second sleeving piece; the first sleeving piece is sleeved on the pivot shaft and is fixed on the connecting plate body; the second sleeving piece is sleeved on the pivot shaft and is fixed on the back plate body; the electronic product mounting assembly is mounted on the back plate body in a lifting manner, and the lifting locking device is used for locking the electronic product mounting assembly on the back plate body; the electronic product mounting assembly is provided with a mounting piece for mounting an electronic product. The height position and the rotation angle of the mounting piece and the electronic product mounted on the mounting piece can be adjusted, and the inclination angle of the electronic product can be conveniently adjusted.

Description

Technical Field

[0001] The utility model relates to the field of electronic product keyboard devices, in particular to a lifting and rotating keyboard device. Background Art

[0002] Existing electronic product support devices often include a back plate body and a mounting member, and the mounting member is fixed on the back plate body. When using the electronic product, the electronic product can be installed in the mounting member, so that the user can watch videos or hold online meetings through the support of the electronic product without the need for the user to hold the electronic product. However, since the electronic product support device cannot adjust the height position of the mounting member, the height position of the electronic product cannot be adjusted, which limits the user's use of watching videos, etc., and it is also inconvenient to adjust the tilt angle of the electronic product. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a lifting and rotating keyboard device, which can adjust the height position of the mounting component and the electronic product mounted thereon, and facilitate the adjustment of the tilt angle of the electronic product, by installing the electronic product mounting component on the back panel body in a liftable manner and locking the electronic product mounting component on the back panel body through a lifting locking device.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A lifting and rotating keyboard device comprises a back plate, a connecting plate, a keyboard, an electronic product installation assembly, and a lifting and locking device; the connecting plate is pivotally connected to the keyboard, and the back plate and the connecting plate are pivotally connected via a pivot connection; the pivot connection comprises a pivot shaft, a first sleeve and a second sleeve; the first sleeve is sleeved on the pivot shaft and fixed on the connecting plate; the second sleeve is sleeved on the pivot shaft and fixed on the back plate; the electronic product installation assembly can be lifted and mounted on the back plate, and the lifting and locking device is used to lock the electronic product installation assembly on the back plate; the electronic product installation assembly has a mounting member for installing electronic products.

[0006] The first sleeve includes a first main fixing part, a first sleeve and a second sleeve; the first main fixing part is fixed on the connecting plate body; the first sleeve and the second sleeve are both arranged on the first main fixing part; the second sleeve includes a second main fixing part, a third sleeve and a fourth sleeve; the second main fixing part is fixed on the back plate body; the third sleeve and the fourth sleeve are arranged on the second main fixing part; the first sleeve, the third sleeve, the second sleeve and the fourth sleeve are sequentially sleeved on the pivot shaft.

[0007] The keyboard is provided with a main supporting shaft body, and the connecting plate body is provided with a rotating shaft body, and the rotating shaft body is rotatably mounted on the main supporting shaft body.

[0008] The electronic product installation assembly also has a lifting seat which is escalably installed on the back plate body; the lifting locking device is used to lock the lifting seat on the back plate body.

[0009] One of the back plate body and the lifting seat is provided with a lifting matching structure, and the other is provided with the lifting locking device, the lifting locking device includes a transverse movable cavity, a transverse locking piece movably installed in the transverse movable cavity, and a first spring arranged in the transverse movable cavity and abutting against the transverse locking piece; the transverse locking piece is formed with a first embedding head, and the lifting matching structure includes a plurality of embedding grooves arranged in sequence along the lifting direction of the lifting seat, and the embedding grooves are used for the first embedding head to be embedded.

[0010] The back plate body is provided with a lifting guide groove extending along the lifting direction of the lifting seat, and the lifting seat can be installed in the lifting guide groove in a liftable manner; the two groove side walls of the lifting guide groove are both provided with the lifting matching structure, and the lifting seat is provided with two lifting locking devices corresponding to the two lifting matching structures respectively, and the first embedding head of the transverse locking member of the lifting locking device is used to be embedded in the embedding groove of the corresponding lifting matching structure.

[0011] The lifting and lowering matching structure includes a plurality of first protruding teeth arranged in sequence along the lifting direction of the lifting seat, and an embedding groove is formed between any two adjacent first protruding teeth; one end of the first spring abuts against the wall of the transverse active cavity, and the other end abuts against the transverse locking piece.

[0012] The electronic product installation assembly also includes a rotating member rotatably installed on the lifting seat, and a rotation locking device for locking the rotating member on the lifting seat; the installation member is fixed on the rotating member.

[0013] One of the lifting seat and the rotating member is provided with a rotational matching structure, and the other is provided with the rotational locking device, which includes an installation cavity, a movable locking member movably installed in the installation cavity, and a second spring arranged in the installation cavity and abutting against the movable locking member; the movable locking member is formed with a second embedding head, and the rotational matching structure includes a plurality of locking grooves arranged in a circle around the rotation axis of the rotating member, and the locking grooves are used for the second embedding head to be embedded.

[0014] The rotational matching structure is arranged on the rotating member, and the rotational locking device is arranged on the lifting seat; the rotational matching structure includes a plurality of second protruding teeth arranged in a circle around the rotation axis of the rotating member, and a locking groove is formed between any two adjacent second protruding teeth; one end of the second spring abuts against the wall of the installation cavity, and the other end abuts against the movable locking member; the installation member is a protective frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model provides a lifting and rotating keyboard device, which adopts a combination of a back plate body, an electronic product mounting component, and a lifting and locking device, and at the same time, by installing the electronic product mounting component on the back plate body in a liftable manner, and locking the electronic product mounting component on the back plate body through the lifting and locking device, the height position of the mounting member and the electronic product mounted thereon can be adjusted by lifting the electronic product mounting component relative to the back plate body and locking it through the lifting and locking device; and, by pivotally connecting the connecting plate body with the keyboard, the back plate body and the connecting plate body are pivotally connected through a pivot connecting member, and the back plate body can be rotated relative to the connecting plate body to facilitate the adjustment of the inclination angle of the electronic product; in addition, the rotating member can also be rotated relative to the lifting seat, so that the angle of the mounting member and the electronic product mounted thereon can be adjusted, so as to facilitate flexible use and meet various video viewing and use requirements of users, and, the rotation adjustment operation and the lifting and lowering adjustment operation are simple and fast, which can save time and is conducive to the user to quickly complete the adjustment; in addition, by adopting a foldable protective cover for the back plate body, the electronic product can also be protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the lifting and rotating keyboard device of the utility model;

[0018] Figure 2 It is an exploded schematic diagram of the back plate body and the connecting plate body;

[0019] Figure 3 It is a schematic diagram of the separation of the mounting part and the rotating part;

[0020] Figure 4 It is a schematic diagram of the coordination of the rotating part, the lifting seat and the supporting part;

[0021] Figure 5 It is an exploded schematic diagram of the rotating part, the lifting seat, and the supporting part;

[0022] Figure 6 It is a schematic diagram of the exploded state of the rotating part, lifting seat and supporting part;

[0023] Figure 7 for Figure 6 A magnified image of point A;

[0024] Figure 8 for Figure 6 The enlarged view of point B;

[0025] Fig. 9 It is a schematic diagram of the coordination of the lifting seat, the rotation locking device, and the lifting locking device;

[0026] Fig.10 It is an exploded schematic diagram of the lifting seat, the rotation locking device, and the lifting locking device;

[0027] Fig.11 It is a structural schematic diagram of another embodiment of the lifting and rotating keyboard device of the utility model;

[0028] Fig.12 for Fig.11 A schematic diagram of the disassembled state of the lifting and rotating keyboard device shown;

[0029] 100, back plate; 102, lifting guide groove; 104, support part; 110, electronic product installation assembly; 120, lifting seat; 121, snap ring part; 130, lifting locking device; 131, transverse locking member; 132, transverse movable cavity; 133, first spring; 140, rotating member; 141, annular convex disk; 142, claw; 150, rotating locking device; 151, installation cavity; 152, movable locking member; 153, second spring; 160, lifting and lowering cooperation structure; 161, embedding groove; 162, first protruding tooth; 170, rotational matching structure; 171, locking groove; 172, second protruding tooth; 180, keyboard; 190, mounting member; 200, connecting plate; 210, pivot connecting member; 211, pivot axis; 212, first sleeve; 213, second sleeve; 214, third sleeve; 215, fourth sleeve; 216, main supporting shaft; 217, rotating shaft; 218, first socket; 219, second socket. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0031] like Figure 1-10As shown, a lifting and rotating keyboard device includes a back plate body 100, a connecting plate body 200, a keyboard 180, an electronic product mounting assembly 110, and a lifting and locking device 130; the connecting plate body 200 is pivotally connected to the keyboard 180, and the back plate body 100 and the connecting plate body 200 are pivotally connected through a pivot connection 210; the pivot connection 210 includes a pivot shaft 211, a first sleeve 218, and a second sleeve 219; the first sleeve 218 is sleeved on the pivot shaft 211 and fixed on the connecting plate body 200; the second sleeve 219 is sleeved on the pivot shaft 211 and fixed on the back plate body 100, so as to overcome the second sleeve 219 by applying a thrust. The friction between the socket 219 and the pivot shaft 211 causes the back panel body 100 together with the second socket 219 to rotate relative to the connecting plate body 200 around the rotation axis of the pivot shaft 211 under the action of thrust, and after the back panel body 100 is rotated into place, the back panel body 100 together with the second socket 219 can be maintained at a corresponding inclination due to the friction between the second socket 219 and the pivot shaft 211; the electronic product installation assembly 110 can be installed on the back panel body 100 in a liftable manner, and the lifting locking device 130 is used to lock the electronic product installation assembly 110 on the back panel body 100; the electronic product installation assembly 110 has a mounting member 190 for installing electronic products.

[0032] When in use, electronic products such as mobile phones or tablet computers can be installed on the mounting member 190 of the electronic product mounting assembly 110, and the back panel body 100 can be placed on a support interface (such as a desktop, a work surface, or other support surface, etc.). If the height position of the electronic product needs to be adjusted, the electronic product mounting assembly 110 can be raised or lowered relative to the back panel body 100 and locked by the lifting locking device 130, so that the height position of the mounting member 190 and the electronic product mounted thereon can be flexibly adjusted according to the height of the support interface, which can improve the experience of watching and using electronic products, etc., and by pivoting the connecting plate body 200 and the keyboard 180 The back panel body 100 and the connecting plate body 200 are pivotally connected via a pivot connection 210, so that a thrust is applied to the back panel body 100, and the friction between the second sleeve 219 and the pivot shaft 211 is overcome by the thrust, so that the back panel body 100 together with the second sleeve 219 rotates relative to the connecting plate body 200 around the rotation axis of the pivot shaft 211 under the action of the thrust. After the back panel body 100 is rotated into place, the back panel body 100 together with the first sleeve 218 can be maintained at a corresponding inclination under the action of the friction between the first sleeve 218 and the pivot shaft 211, so as to facilitate the adjustment of the tilt angle of the electronic product.

[0033] The first sleeve 218 includes a first main fixing part, a first sleeve 212 and a second sleeve 213; the first main fixing part is fixed on the connecting plate body 200; the first sleeve 212 and the second sleeve 213 are both arranged on the first main fixing part; the second sleeve 219 includes a second main fixing part, a third sleeve 214 and a fourth sleeve 215; the second main fixing part is fixed on the back plate body 100; the third sleeve 214 and the fourth sleeve 215 are arranged on the second main fixing part; the first sleeve 212, the third sleeve 214, the second sleeve 213 and the fourth sleeve 215 are sequentially sleeved on the pivot shaft 211. By adopting the above arrangement, it is convenient to process and manufacture.

[0034] In this embodiment, the pivot shaft 211 includes at least two main shaft sections and an installation shaft section, and the installation shaft section is installed between two adjacent main shaft ends; the diameter of the installation shaft section is smaller than the diameter of the main shaft section, and the first sleeve 212, the third sleeve 214, the second sleeve 213, and the fourth sleeve 215 are sequentially sleeved on the installation shaft section.

[0035] In this embodiment, the keyboard 180 is provided with a main support shaft 216, and the connecting plate body 200 is provided with a rotating shaft 217. The rotating shaft 217 is rotatably mounted on the main support shaft 216. When in use, the connecting plate body 200 can be rotated around the central axis of the mounting shaft relative to the keyboard 180 by applying a thrust. After the connecting plate body 200 is rotated into place relative to the keyboard 180, the connecting plate body 200 can be maintained in a corresponding position by the friction between the main support shaft 216 and the rotating shaft 217, and then the back plate body 100 is pushed so that the back plate body 100 together with the second sleeve 219 are rotated relative to the connecting plate body 200 around the rotating axis of the pivot shaft 211 under the action of the thrust, so that the back plate body 100 together with the second sleeve 219 can be maintained at a corresponding inclination under the action of the friction between the second sleeve 219 and the pivot shaft 211, so as to facilitate the adjustment of the inclination angle of the electronic product.

[0036] Of course, in addition to this, the connecting plate 200 and the keyboard 180 may be pivotally connected by other structures, as long as the connecting plate 200 can rotate relative to the keyboard 180 .

[0037] The electronic product mounting assembly 110 further comprises a lifting seat 120 which is escalably mounted on the back plate body 100 ; the lifting locking device 130 is used to lock the lifting seat 120 on the back plate body 100 .

[0038] One of the back panel body 100 and the lifting seat 120 is provided with a lifting coordination structure 160, and the other is provided with the lifting locking device 130. That is to say, if the back panel body 100 is provided with a lifting coordination structure 160, the lifting seat 120 is provided with the lifting locking device 130; if the back panel body 100 is provided with a lifting locking device 130, the lifting seat 120 is provided with a lifting coordination structure 160, and locking can also be achieved.

[0039] The lifting and locking device 130 includes a transverse movable cavity 132, a transverse locking member 131 movably installed in the transverse movable cavity 132, and a first spring 133 arranged in the transverse movable cavity 132 and abutting against the transverse locking member 131; the transverse locking member 131 is formed with a first embedding head, and the lifting and lowering matching structure 160 includes a plurality of embedding grooves 161 arranged in sequence along the lifting direction of the lifting seat 120, and the embedding grooves 161 are used for the first embedding head to be embedded. When in use, by lifting the lifting seat 120 to different height positions, the lifting seat 120 can be locked at different height positions by embedding the first embedding head of the transverse locking member 131 into different embedding grooves 161. By adopting the above structure of the lifting and lowering locking device 130 and the lifting and lowering matching structure 160, it can be locked and convenient for lifting and lowering adjustment.

[0040] Specifically, the lifting and lowering matching structure 160 includes a plurality of first protruding teeth 162 sequentially arranged along the lifting direction of the lifting seat 120 , and an embedding groove 161 is formed between any two adjacent first protruding teeth 162 , thereby facilitating the formation of the embedding groove 161 .

[0041] As a more preferred embodiment of the present utility model, the back plate body 100 is provided with a lifting guide groove 102 extending along the lifting direction of the lifting seat 120, the lifting seat 120 is installed in the lifting guide groove 102 in a liftable manner, both groove side walls of the lifting guide groove 102 are provided with the lifting matching structure 160, the lifting seat 120 is provided with two lifting locking devices 130 corresponding to the two lifting matching structures 160, and the first embedding head of the transverse locking member 131 of the lifting locking device 130 is used to embed in the embedding groove 161 of the corresponding lifting matching structure 160. By adopting the above structure, the locking stability of the lifting seat 120 can also be improved.

[0042] Specifically, one end of the first spring 133 abuts against the wall of the transverse active cavity 132, and the other end abuts against the transverse locking member 131. Of course, in addition to this, a washer or the like may be provided in the transverse active cavity 132, and one end of the first spring 133 away from the transverse locking member 131 abuts against the washer or the like.

[0043] The electronic product mounting assembly 110 further includes a rotating member 140 rotatably mounted on the lifting seat 120, and a rotation locking device 150 for locking the rotating member 140 on the lifting seat 120; the mounting member 190 is fixed on the rotating member 140. When in use, the rotating member 140 can also be rotated relative to the lifting seat 120 and locked by the rotation locking device 150, so that the angle of the electronic product mounted on the mounting member 190 can be adjusted. By adopting the above structure, the electronic product protection device can have not only the lifting function but also the rotation function, and can adjust the angle and height position of the electronic product mounted on the mounting member 190, so as to facilitate flexible use and meet the various video viewing and use requirements of users.

[0044] One of the lifting seat 120 and the rotating member 140 is provided with a rotational matching structure 170, and the other is provided with the rotational locking device 150. That is to say, if the lifting seat 120 is provided with a rotational matching structure 170, the rotating member 140 is provided with the rotational locking device 150; if the lifting seat 120 is provided with a rotational locking device 150, the rotating member 140 is provided with a rotational matching structure 170, and locking can also be achieved.

[0045] The rotation locking device 150 includes an installation cavity 151, an active locking component 152 movably installed in the installation cavity 151, and a second spring 153 disposed in the installation cavity 151 and abutting against the active locking component 152; the active locking component 152 is formed with a second embedding head, and the rotation matching structure 170 includes a plurality of locking grooves 171 arranged in a circle around the rotation axis of the rotating member 140, and the locking grooves 171 are used for the second embedding head to be embedded. When in use, by rotating the rotating member 140 to different angles, the second embedding head of the active locking component 152 can be embedded in different locking grooves 171, so that the rotating member 140 can be locked at different angles. By adopting the above structure of the rotation locking device 150 and the rotation matching structure 170, it can be locked and convenient for rotation adjustment operation.

[0046] Preferably, the rotational matching structure 170 includes a plurality of second protruding teeth 172 arranged in a circle around the rotation axis of the rotating member 140 , and a locking groove 171 is formed between any two adjacent second protruding teeth 172 , thereby facilitating the formation of the locking groove 171 .

[0047] As a preferred embodiment of the present invention, the rotational matching structure 170 is disposed on the rotating member 140, and the rotational locking device 150 is disposed on the lifting seat 120. Specifically, the rotating member 140 is provided with an annular convex disc 141 protruding outward, and the rotational matching structure 170 is formed on the annular convex disc 141.

[0048] The rotating member 140 is provided with a plurality of claws 142 arranged in a circle around the rotating axis thereof, and the lifting seat 120 is provided with a snap ring portion 121, and the rotating member 140 is rotatably buckled on the snap ring portion 121 through the plurality of claws 142, so that through the above structure, the rotating member 140 is rotatably mounted on the lifting seat 120, and the installation of the rotating member 140 is convenient. Of course, in addition to this, the rotating member 140 can also be rotatably mounted on the lifting seat 120 through other structures such as pivots, etc., but the rotating member 140 is rotatably buckled on the snap ring portion 121 through the claws 142, which is the best embodiment of the present utility model, and can facilitate the installation of the rotating member 140.

[0049] One end of the second spring 153 abuts against the wall of the installation cavity 151, and the other end abuts against the movable locking component 152. Of course, in addition, a washer or the like can be provided in the installation cavity 151, and one end of the second spring 153 away from the movable locking component 152 abuts against the washer or the like.

[0050] The mounting member 190 is a protective frame. Of course, the mounting member 190 can be a buckle mounting frame in addition to the protective frame, as long as it can be installed on electronic products. However, the mounting member 190 is a protective frame, which is the most preferred embodiment of the utility model. It can be installed on electronic products to protect them and reduce costs. In order to further optimize its performance, the mounting member 190 can also be formed with a receiving groove for placing the electronic pen, wherein the receiving cavity can be directly processed and formed on the mounting member 190. The mounting member 190 can also be a main frame and a pull-out cover that can be pulled out and connected to the main frame. The receiving groove can be surrounded by the main frame and the pull-out cover.

[0051] The electronic product may be a tablet computer, a mobile phone or other electronic product.

[0052] The back plate body 100 includes a bottom plate and a support portion 104 fixed on the bottom plate. The lifting guide groove 102 and the lifting matching structure 160 are both formed on the support portion 104. Of course, in addition to this, the back plate body 100 can also adopt other structures such as a thickened plate body.

[0053] The actual lifting and rotating adjustment process of the utility model is as follows: in actual use, the connecting plate body 200 can be rotated relative to the keyboard 180 around the central axis of the installation shaft by applying a thrust, and after the connecting plate body 200 is rotated relative to the keyboard 180, the friction between the main support shaft body 216 and the rotating shaft body 217 of the connecting plate body 200 can be maintained at the corresponding position, and then the back plate body 100 is pushed so that the back plate body 100 together with the second sleeve 219 is rotated relative to the connecting plate body 200 around the rotation axis of the pivot shaft 211 under the action of the thrust, so that the back plate body 100 together with the second sleeve 219 can be frictionally connected between the second sleeve 219 and the pivot shaft 211. Under the action of friction, the corresponding inclination is maintained to facilitate the adjustment of the inclination angle of the electronic product. If lifting adjustment is required, sufficient thrust is first applied to the mounting member 190 to make the lifting seat 120 rise and fall along the lifting guide groove 102. During the lifting and lowering process of the lifting seat 120, the transverse locking member 131 can press the first spring 133 to retract toward the inside of the transverse active cavity 132 under the action of the first convex tooth 162, so that it can pass over the first convex tooth 162. After the electronic product mounting assembly 110 is lifted and lowered into place, the transverse locking member 131 is reset under the elastic force of the first spring 133 and is embedded in the corresponding embedding groove 161 by using the first embedding head, so that the lifting and lowering adjustment can be completed quickly. If rotation adjustment is required, a rotation thrust is first applied to the mounting member 190 to rotate the rotating member 140 relative to the lifting seat 120. During the rotation of the rotating member 140, the movable locking member 152 can be pressed by the second protruding tooth 172 to press the second spring 153 to retract toward the inside of the mounting cavity 151, so that it can pass over the second protruding tooth 172. After the mounting member 190 is rotated into place, the movable locking member 152 is reset under the elastic force of the second spring 153 and is embedded in the corresponding locking groove 171 by the second embedding head, so that the rotation adjustment can be completed quickly.

[0054] Figure 11-12 This is a structural schematic diagram of another embodiment of the lifting and rotating keyboard device of the utility model. Figure 1 The difference between the lifting and rotating keyboard device shown in the embodiment is only in the structure of the back plate body 100 and the size of the components of the electronic product mounting assembly 110. In this embodiment, the support portion 104 of the back plate body 100 is integrally formed on the bottom plate, and the size of the components of the electronic product mounting assembly 110 is set to be smaller. Of course, the size of each component of the electronic product mounting assembly 110 is not limited and can be set according to actual needs.

[0055] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A lifting and rotating keyboard device, characterized in that: It includes a back plate body, a connecting plate body, a keyboard, an electronic product installation component, and a lifting and locking device; the connecting plate body is pivotally connected to the keyboard, and the back plate body and the connecting plate body are pivotally connected through a pivot connection member; the pivot connection member includes a pivot shaft, a first sleeve member, and a second sleeve member; the first sleeve member is sleeved on the pivot shaft and fixed on the connecting plate body; the second sleeve member is sleeved on the pivot shaft and fixed on the back plate body; the electronic product installation component can be lifted and lowered on the back plate body, and the lifting and locking device is used to lock the electronic product installation component on the back plate body; the electronic product installation component has a mounting member for installing electronic products.

2. The lifting and rotating keyboard device according to claim 1, characterized in that: The first sleeve includes a first main fixing part, a first sleeve and a second sleeve; the first main fixing part is fixed on the connecting plate body; the first sleeve and the second sleeve are both arranged on the first main fixing part; the second sleeve includes a second main fixing part, a third sleeve and a fourth sleeve; the second main fixing part is fixed on the back plate body; the third sleeve and the fourth sleeve are arranged on the second main fixing part; the first sleeve, the third sleeve, the second sleeve and the fourth sleeve are sequentially sleeved on the pivot shaft.

3. The lifting and rotating keyboard device according to claim 1, characterized in that: The keyboard is provided with a main supporting shaft body, and the connecting plate body is provided with a rotating shaft body, and the rotating shaft body is rotatably mounted on the main supporting shaft body.

4. The lifting and rotating keyboard device according to claim 1 or 2, characterized in that: The electronic product installation assembly also has a lifting seat which is escalably installed on the back plate body; the lifting locking device is used to lock the lifting seat on the back plate body.

5. The lifting and rotating keyboard device according to claim 4, characterized in that: One of the back plate body and the lifting seat is provided with a lifting matching structure, and the other is provided with the lifting locking device, the lifting locking device includes a transverse movable cavity, a transverse locking piece movably installed in the transverse movable cavity, and a first spring arranged in the transverse movable cavity and abutting against the transverse locking piece; the transverse locking piece is formed with a first embedding head, and the lifting matching structure includes a plurality of embedding grooves arranged in sequence along the lifting direction of the lifting seat, and the embedding grooves are used for the first embedding head to be embedded.

6. The lifting and rotating keyboard device according to claim 5, characterized in that: The back plate body is provided with a lifting guide groove extending along the lifting direction of the lifting seat, and the lifting seat can be installed in the lifting guide groove in a liftable manner; the two groove side walls of the lifting guide groove are both provided with the lifting matching structure, and the lifting seat is provided with two lifting locking devices corresponding to the two lifting matching structures respectively, and the first embedding head of the transverse locking member of the lifting locking device is used to be embedded in the embedding groove of the corresponding lifting matching structure.

7. The lifting and rotating keyboard device according to claim 5, characterized in that: The lifting and lowering matching structure includes a plurality of first protruding teeth arranged in sequence along the lifting direction of the lifting seat, and an embedding groove is formed between any two adjacent first protruding teeth; one end of the first spring abuts against the wall of the transverse active cavity, and the other end abuts against the transverse locking piece.

8. The lifting and rotating keyboard device according to claim 4, characterized in that: The electronic product installation assembly also includes a rotating member rotatably installed on the lifting seat, and a rotation locking device for locking the rotating member on the lifting seat; the installation member is fixed on the rotating member.

9. The lifting and rotating keyboard device according to claim 8, characterized in that: One of the lifting seat and the rotating member is provided with a rotational matching structure, and the other is provided with the rotational locking device, which includes an installation cavity, a movable locking member movably installed in the installation cavity, and a second spring arranged in the installation cavity and abutting against the movable locking member; the movable locking member is formed with a second embedding head, and the rotational matching structure includes a plurality of locking grooves arranged in a circle around the rotation axis of the rotating member, and the locking grooves are used for the second embedding head to be embedded.

10. The lifting and rotating keyboard device according to claim 9, characterized in that: The rotational matching structure is arranged on the rotating member, and the rotational locking device is arranged on the lifting seat; the rotational matching structure includes a plurality of second protruding teeth arranged in a circle around the rotation axis of the rotating member, and a locking groove is formed between any two adjacent second protruding teeth; one end of the second spring abuts against the wall of the installation cavity, and the other end abuts against the movable locking member; the installation member is a protective frame.

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