CN212112279U - Computer split screen device - Google Patents

Abstract

A computer screen splitting device is installed on a notebook computer, the notebook computer is of a hinge structure and is divided into a screen page and a keyboard page, and the device comprises a fixed sleeve, a containing frame, an expansion screen and a keyboard; the fixed sleeve is provided with a plurality of fixed clamps and is detachably arranged on the back of the screen page of the notebook computer through the fixed clamps; the containing frame is arranged on the back of the fixed sleeve and is provided with a first containing cavity and a second containing cavity communicated with the first containing cavity; the expansion screen is placed outwards and hinged with one side of the storage frame, and the expansion screen is provided with a first position stored in the second containing cavity and a second position pulled out of the second containing cavity; the keyboard is articulated with accomodate the frame bottom side, and possesses and accomodate in the first state that holds the intracavity lid and close the expansion screen and follow the first second state that holds the intracavity and pull out the use.

Description

Computer split screen device

Technical Field

The utility model relates to a computer technology field specifically is a computer divides screen device.

Background

The notebook computer is a portable computer, is commonly used in offices, and is popular among people due to the characteristics of lightness and portability. With the development of society, a plurality of computers with multiple screens are used in more and more places, such as ticket windows, independent teaching, contract checking and the like, information needs to be seen by both parties in a one-to-one occasion, and at present, two independent screens are adopted for displaying in most occasions; or when the stock chart is checked, because the notebook computer has a screen and the screen size is small, the user often needs to use the split screen. To this end, the utility model application No. 201821558785.4 mentions a multi-screen notebook computer with two screens, which can have a solution to the above problem but there is still a place to be improved:

firstly, the notebook computer body is provided with two screens, so that the weight of the notebook computer can be increased, the expanded screens cannot be detached, a user needs to purchase the computer to experience double-screen operation, and if the expanded screens are damaged, the user needs to be repaired together with the computer body, so that the notebook computer is very troublesome.

Secondly, the notebook computer is only provided with one keyboard, so that the two parties are inconvenient to operate the same computer.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the problems, the utility model provides a computer screen splitting device which is provided with an expanded screen and can be assembled with various adaptive notebook computers for use; in addition, the notebook computer is provided with a keyboard, so that two parties can operate the same notebook computer conveniently.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme:

a computer screen splitting device is installed on a notebook computer, the notebook computer is of a hinge structure and is divided into a screen page and a keyboard page, and the computer screen splitting device comprises a fixed sleeve, an accommodating frame, an expansion screen and a keyboard; the fixing sleeve is provided with a plurality of fixing clamps, and the fixing sleeve is detachably arranged on the back of the screen page of the notebook computer through the fixing clamps; the containing frame is arranged on the back of the fixed sleeve, a first containing cavity and a second containing cavity communicated with the first containing cavity are arranged on the containing frame, and the second containing cavity is opened outwards; the expansion screen is placed outwards and hinged to one side of the storage frame, and the expansion screen is provided with a first position stored in the second storage cavity and a second position pulled out of the second storage cavity; the keyboard is hinged with the bottom side of the containing frame and has a first state of being contained in the first containing cavity to cover the extended screen and a second state of being pulled out of the first containing cavity for use; a control unit is arranged in the containing frame and is electrically connected with the expansion screen, a multimedia interface electrically connected with the control unit is also arranged on the side surface of the containing frame, and a user can use a data line to connect the notebook computer with the multimedia interface so as to carry out split-screen display; the keyboard is in signal connection with the notebook computer.

Preferably, the fixation clamp is equipped with four, and corresponds the four corners design of notebook computer's screen page or leaf respectively, and the fixation clamp is the elasticity plastic material, has good adaptation and fastening ability.

Preferably, one side of the storage frame, which is hinged to the expansion screen, is provided with a first bayonet communicated with the first accommodating cavity and the second accommodating cavity, the hinged end of the expansion screen is designed to correspond to the first bayonet, and after the expansion screen is turned 180 degrees around the hinged position, the hinged end of the expansion screen is clamped into the first bayonet to limit the expansion screen from continuing turning.

Preferably, the storage frame further comprises a locking piece, a stepped groove communicated with the first bayonet is formed in the storage frame, a first moving groove communicated with the stepped groove is further formed beside the stepped groove, the locking piece is movably installed in the stepped groove, a protruding head is arranged at the first end of the locking piece, a first moving block is arranged at the top of the locking piece, and the first moving block penetrates through the first moving groove to the outside and can move along the length direction of the first moving groove; the protruding head can be driven to penetrate through the notch of the stepped groove to the first clamping opening by shifting the first moving block, and then the hinged end of the expansion screen which is turned over 180 degrees is locked.

Preferably, still include first spring, first spring mounting is in the ladder inslot, and its one end offsets with latch fitting second end, and the other end offsets with the ladder inslot face.

Preferably, the top of the inner wall surface of the first accommodating cavity is further provided with a magnetic attraction piece, and the keyboard is provided with a magnetic attraction block corresponding to the magnetic attraction piece, so that the keyboard can be fixed in the first accommodating cavity in a suction manner when being in the first state.

Preferably, the keyboard is a Bluetooth keyboard, and the back of the keyboard is provided with a wear-resistant coating.

Preferably, the keyboard comprises a storage frame and a clamping piece, wherein one side of the storage frame, which is hinged with the keyboard, is provided with a second bayonet communicated with the first accommodating cavity and the second accommodating cavity, and two ends of the second bayonet are provided with clamping holes; the keyboard hinged end is designed corresponding to the second bayonet and is provided with a stepped hole and a second moving groove communicated with the stepped hole; the clamping piece comprises a first clamping rod, a second clamping rod and a second spring, the first clamping rod and the second clamping rod are movably arranged in the stepped hole, the second spring is arranged between the tail ends of the first clamping rod and the second clamping rod, clamping blocks are arranged at the head ends of the first clamping rod and the second clamping rod, and the two clamping blocks can penetrate through the stepped hole to the corresponding clamping holes; the first clamping rod and the second clamping rod are respectively provided with a second moving block, the two second moving blocks penetrate through the second moving grooves, the first clamping rod and the second clamping rod can be driven to move relatively by kneading the two second moving blocks, and then the two clamping blocks are separated from the corresponding clamping holes, so that a user can detach the keyboard.

(III) advantageous effects

The utility model provides a computer split screen device, which is characterized in that a fixed sleeve is detachably arranged on a screen page of a notebook computer through a fixed clamp, the split screen device has at least two using states, the first one is used by two persons, and a keyboard is directly pulled out from a first accommodating cavity and is abutted against a desktop; the second type is single use, and the user pulls out the expansion screen from the second accommodating cavity, and the screen surface of the expansion screen is opposite to the user.

The computer split screen device is provided with an expanded screen, and can be assembled with various adaptive notebook computers for use through the design of the fixing clamp; in addition, the notebook computer is provided with a keyboard, so that two parties can operate the same notebook computer conveniently; and keyboard and expansion screen save space, portable for the folding design of storage frame.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention,

in the drawings:

fig. 1 shows a schematic view of a first usage state of the present invention;

fig. 2 shows a schematic view of a second usage state of the present invention;

fig. 3 shows a third schematic view of the usage state of the present invention;

fig. 4 shows a schematic diagram of the overall structure of the present invention;

FIG. 5 shows an enlarged view at C in FIG. 4;

fig. 6 shows a cross-sectional view of a part of the structure of the present invention;

fig. 7 shows a schematic diagram of the overall structure of the present invention;

fig. 8 shows a part of the structure diagram of the invention;

FIG. 9 shows an enlarged view at D of FIG. 8;

fig. 10 shows a first structural diagram of the keyboard of the present invention;

FIG. 11 shows an enlarged view at E in FIG. 10;

fig. 12 shows a schematic structural diagram of a keyboard of the present invention.

In the figure: the fixed cover of 1, 11 fixation clamps, 2 accomodate the frame, 20 multimedia interface, 21 first hold the chamber, 22 the second holds the chamber, 2A first bayonet socket, 2A ladder groove, 2B first shifting groove, 2B second bayonet socket, 2B1 card hole, 3 expand the screen, 4 keyboards, 4a ladder hole, 4B second shifting groove, 5 latch fittings, 5a plush copper, 5B first movable block, 6 screens piece, 61 first kelly, 62 second kelly, 63 second spring, 6a fixture block, 6B second movable block, T first spring, S1 magnetism piece, S2 magnetism piece, N wear-resistant coating.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 12, a computer screen splitting device is installed on a notebook computer, the notebook computer is of a hinge structure and is divided into a screen page and a keyboard page, and the device comprises a fixed sleeve 1, a containing frame 2, an expansion screen 3 and a keyboard 4; the fixed sleeve 1 is provided with a plurality of fixing clamps 11, and the fixed sleeve 1 is detachably arranged on the back of a screen page of the notebook computer through the fixing clamps 11; the containing frame 2 is arranged on the back of the fixed sleeve 1, a first containing cavity 21 and a second containing cavity 22 communicated with the first containing cavity 21 are arranged on the containing frame 2, and the second containing cavity 22 is opened outwards; the expansion screen 3 is placed outwards and hinged to one side of the storage frame 2, and the expansion screen 3 is stored in a first position of the second storage cavity 22 and pulled out of the second storage cavity 22; the keyboard 4 is hinged with the bottom side of the receiving frame 2 and has a first state of being received in the first receiving cavity 21 and internally covering the expansion screen 3 and a second state of being pulled out from the first receiving cavity 21 for use; a control unit is arranged in the containing frame 2, the control unit is wired along the hinged end of the expansion screen 3 and is electrically connected with the expansion screen 3, a multimedia interface 20 electrically connected with the control unit is further arranged on the side face of the containing frame 2, and a user can connect the notebook computer with the multimedia interface 20 by using a data wire to perform split screen display; the keyboard 4 is in signal connection with the notebook computer.

It should be noted that in the embodiment of the present invention, a storage battery capable of supplying power to the expansion screen 3 is further disposed inside the storage frame 2, in addition, a user can also supply power to the expansion screen 3 by carrying a mobile power supply and other devices, and a charging port for charging the storage battery is disposed on the storage frame 2; and multimedia interface 20 then chooses for use HDMI high definition multimedia interface, and the control unit then includes circuit board and relevant processing element, because this type of technique belongs to common prior art for dividing the screen field at the computer, the utility model discloses in do not do unnecessary description.

Before use, a user fixedly installs the fixing sleeve 1 on the back of the screen page of the notebook computer through the fixing clamps 11 on the fixing sleeve 1, the fixing clamps 11 are mutually enclosed, the screen page of the notebook computer can be enclosed and locked, the fixing mode is very common, the screen page is not easy to separate after being locked, in addition, the adaptability is high, and the device can be used by any notebook computer regardless of the model of the notebook computer, as long as the size of the screen page is consistent; when the device is not needed to be used, the device only needs to be detached from the screen page of the notebook computer.

Specifically, after the user fixedly installs the fixing sleeve 1 on the back of the screen page of the notebook computer, when the user needs to see information from both sides in a one-to-one situation, the user can pull out the keyboard 4 from the first accommodating cavity 21, turn the keyboard 4 from the first state to the second state, turn the keyboard 4 to a proper position, make the keyboard 4 abut against the desktop, at the moment, the expansion screen 3 is in the first position, the user connects the USB interface on the notebook computer with the multimedia interface 20 on the accommodating frame 2 through the data line, and thus the two people can check the content on the notebook computer at the same time; the design of the keyboard 4 is convenient for both parties to carry out related operations on the same notebook computer, and is very convenient.

When a user needs to use the notebook alone to check information with a large number of pages, such as a stock chart, a map in a game and the like, the user turns the expansion screen 3 from the first position to the second position around the hinge point on the premise of ensuring that the keyboard 4 is in the second state, continues to turn over the expansion screen 3 to enable the screen of the expansion screen 3 to be right opposite to the user, and finally turns over the keyboard 4 back to the first state; it should be noted that the expansion screen 3 is hinged to the storage frame 2 in a damping manner, so that the expansion screen 3 cannot shake freely after being turned over.

In conclusion, the computer screen splitting device is provided with the expansion screen 3, and can be assembled with various adaptive notebook computers for use through the design of the fixing clamp 11; in addition, the notebook computer is also provided with a keyboard 4, so that two parties can operate the same notebook computer at the same time; and keyboard 4 and expansion screen 3 are for the folding design of storage frame 2, save space, portable.

Referring to fig. 1 to 7, four fixing clips 11 are provided and respectively correspond to four corners of a screen page of a notebook computer, so that the fixing sleeve 1 can be more firmly fixed with the screen page of the notebook computer; the fixing clip 11 is made of elastic plastic material, and has good fitting and fastening capabilities, so that a user can conveniently mount the fixing clip on the notebook computer or take the fixing clip off the notebook computer.

Referring to fig. 4-7, in order to limit the turning angle of the expansion screen 3 and avoid the excessive turning of the expansion screen 3, in the embodiment of the present invention, a first bayonet 2A for connecting the first accommodating cavity 21 and the second accommodating cavity 22 is disposed at one side of the hinged connection of the accommodating frame 2 and the expansion screen 3, the hinged end of the expansion screen 3 is designed corresponding to the first bayonet 2A, and after the expansion screen 3 is turned 180 degrees around the hinged connection, the hinged end is clamped into the first bayonet 2A, so that the effect of limiting the expansion screen 3 from continuing to turn can be achieved; particularly, after the expansion screen 3 is turned over for 180 degrees around the hinged part, the screen surface of the expansion screen 3 is opposite to the user.

Furthermore, in order to avoid swinging of the expansion screen 3 caused by external force after being turned for 180 degrees, the expansion screen also comprises a locking piece 5, a stepped groove 2A communicated with the first bayonet 2A is arranged on the accommodating frame 2, a first moving groove 2b communicated with the stepped groove 2A is further arranged beside the stepped groove 2A, the locking piece 5 is movably arranged in the stepped groove 2A, a raised head 5a is arranged at the first end of the locking piece 5, a first moving block 5b is arranged at the top of the locking piece, and the first moving block 5b penetrates through the first moving groove 2b to the outside and can move along the first moving groove 2 b; can drive plush copper 5a and can run through in ladder groove 2A notch to first bayonet socket 2A through stirring first movable block 5b, and then will overturn the hinged end locking of expansion screen 3 behind 180.

Specifically, when a user needs to turn over the expansion screen 3, the user firstly dials the first moving block 5b to drive the locking piece 5 to move forward along the length direction of the first moving groove 2b, so that the raised head 5a is accommodated in the stepped groove 2A, and the hinged end of the expansion screen 3 is clamped into the first bayonet 2A; then stir first movable block 5b again and order about latch fitting 5 along first movable groove 2b length direction reverse movement, make plush copper 5a run through in ladder groove 2A notch to first bayonet socket 2A to with expand the hinged end looks butt of shielding 3, can prescribe a limit to expanding screen 3.

Referring to fig. 5-6, the locking device further includes a first spring T, the first spring T is installed in the stepped groove 2a, and one end of the first spring T abuts against the second end of the locking member 5, and the other end of the first spring T abuts against the inner surface of the stepped groove 2 a.

When the expansion screen is used, a user pulls and stirs the first moving block 5b, the locking piece 5 extrudes the first spring T, the first spring T deforms and stores energy, the hinged end of the expansion screen 3 is clamped into the first bayonet 2A, then the first moving block 5b is loosened, at the moment, the first spring T resets and releases energy, and the raised head 5a is pushed to penetrate through the stepped groove 2A to limit the expansion screen 3; the design of first spring T can improve the security, when expanding 3 hinged ends of screen and first bayonet socket 2A joint promptly, first spring T can provide external force for plush copper 5a, avoids plush copper 5a withdrawal ladder groove 2A and leads to expanding 3 hinged ends of screen and break away from first bayonet socket 2A.

Referring to fig. 1-5, in order to avoid the keyboard 4 being insecure after being stored in the first containing cavity 21, in the embodiment of the present invention, the top of the inner wall surface of the first containing cavity 21 is further provided with a magnetic attraction sheet S1, and the keyboard 4 is provided with a magnetic attraction block S2 corresponding to the magnetic attraction sheet S1, so that the keyboard 4 can be fixed in the first containing cavity 21 in a first state in an attracting manner.

Referring to fig. 9-12, the keyboard 4 is a bluetooth keyboard, and the bluetooth keyboard 4 is convenient to use, does not need wiring, and is convenient for a user to detach and use; the back of the keyboard 4 is provided with a wear-resistant coating N, specifically a polyurethane coating, so as to prolong the service life of the keyboard 4.

Referring to fig. 8 to 12, the keyboard device further includes a clamping member 6, a second bayonet 2B communicating with the first accommodating cavity 21 and the second accommodating cavity 22 is disposed on one side of the accommodating frame 2 hinged to the keyboard 4, and clamping holes 2B1 are disposed at two ends of the second bayonet 2B; the hinged end of the keyboard 4 is designed corresponding to the second bayonet 2B, and the hinged end of the keyboard 4 is provided with a stepped hole 4a and a second moving groove 4B communicated with the stepped hole 4 a; the clamping member 6 comprises a first clamping rod 61, a second clamping rod 62 and a second spring 63, the first clamping rod 61 and the second clamping rod 62 are movably mounted in the stepped hole 4a, the second spring 63 is mounted between the tail ends of the first clamping rod 61 and the second clamping rod 62, clamping blocks 6a are arranged at the head ends of the first clamping rod 61 and the second clamping rod 62, and the two clamping blocks 6a can penetrate through the stepped hole 4a to the corresponding clamping holes 2B 1; the first clamping rod 61 and the second clamping rod 62 are both provided with a second moving block 6B, the two second moving blocks 6B penetrate through the second moving groove 4B, the first clamping rod 61 and the second clamping rod 62 can be driven to move relatively by kneading the two second moving blocks 6B, and then the two clamping blocks 6a are separated from the corresponding clamping holes 2B1, so that a user can detach the keyboard 4.

Because keyboard 4 is the bluetooth keyboard, does not need the line body to connect, therefore 4 detachable designs of keyboard more convenient to use person uses, for example when the user adjusts the angle of notebook computer screen page or leaf, 4 keyboard probably have the condition of bumping with the desktop to damage keyboard 4, and 4 detachable designs of keyboard then can solve this problem.

Specifically, when the user needs to detach the keyboard 4, the user only needs to knead the second moving block 6B on the first clamping rod 61 and the second clamping rod 62 to make the first clamping rod 61 and the second clamping rod 62 move relatively, so that the clamping blocks 6a at the head ends of the first clamping rod 61 and the second clamping rod 62 are respectively separated from the corresponding clamping holes 2B1 and are contracted back into the stepped holes 4a, and in the process, the second spring 63 stores energy and compresses; when a user needs to install the keyboard 4, the user firstly pinches the second moving block 6B on the first clamping rod 61 and the second clamping rod 62 to enable the clamping block 6a to shrink back into the stepped hole 4a, then the clamping blocks 6a at the head ends of the first clamping rod 61 and the second clamping rod 62 are respectively aligned with the clamping holes 2B1 at the two ends of the second bayonet 2B, then the two second moving blocks 6B are loosened, the second spring 63 releases energy to recover, the first clamping rod 61 and the second clamping rod 62 can be driven to move along the stepped hole 4a, and the clamping blocks 6a at the head ends of the first clamping rod 61 and the second clamping rod 62 are clamped into the corresponding clamping holes 2B1 again.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A computer screen splitting device is installed on a notebook computer, and the notebook computer is divided into a screen page and a keyboard page, and is characterized by comprising a fixed sleeve (1), a containing frame (2), an expansion screen (3) and a keyboard (4);

the fixing sleeve (1) is provided with a plurality of fixing clamps (11), and the fixing sleeve (1) is detachably arranged on the back of a screen page of the notebook computer through the fixing clamps (11);

the accommodating frame (2) is arranged on the back of the fixing sleeve (1), a first accommodating cavity (21) and a second accommodating cavity (22) communicated with the first accommodating cavity (21) are formed in the accommodating frame (2), and the second accommodating cavity (22) is opened outwards;

the expansion screen (3) is placed outwards and hinged to one side of the storage frame (2), and the expansion screen (3) is stored in a first position of the second containing cavity (22) and a second position pulled out of the second containing cavity (22);

the keyboard (4) is hinged with the bottom side of the containing frame (2) and is contained in the first containing cavity (21) to cover the expansion screen (3) in a first state and is pulled out of the first containing cavity (21) for use in a second state;

a control unit is arranged in the containing frame (2), the control unit is electrically connected with the expansion screen (3), a multimedia interface (20) electrically connected with the control unit is further arranged on the side face of the containing frame (2), and the notebook computer is connected with the multimedia interface (20) through a data line so that split screen display can be carried out; the keyboard (4) is in signal connection with the notebook computer.

2. The computer screen splitting device according to claim 1, wherein four fixing clips (11) are provided and respectively correspond to four corners of a screen page of a notebook computer, and the fixing clips (11) are made of elastic plastic materials.

3. The computer screen splitting device according to claim 1, wherein a first bayonet (2A) communicated with the first accommodating cavity (21) and the second accommodating cavity (22) is arranged on one side, hinged to the storage frame (2) and the expansion screen (3), of the expansion screen (3), the hinged end of the expansion screen (3) is designed corresponding to the first bayonet (2A), and after the expansion screen (3) is turned 180 degrees around the hinged position, the hinged end of the expansion screen is clamped into the first bayonet (2A) to limit the expansion screen (3) from continuing turning.

4. The computer screen splitting device according to claim 3, further comprising a locking member (5), wherein a stepped groove (2A) communicated with the first bayonet (2A) is formed in the receiving frame (2), a first communicating moving groove (2b) is further formed beside the stepped groove (2A), the locking member (5) is movably mounted in the stepped groove (2A), a raised head (5a) is arranged at a first end of the locking member (5), a first moving block (5b) is arranged at the top of the locking member, and the first moving block (5b) penetrates through the first moving groove (2b) to the outside and can move in the length direction of the first moving groove (2 b); the protruding head (5a) can be driven to penetrate through the notch of the stepped groove (2A) to the first bayonet (2A) by pulling the first moving block (5b), and then the hinged end of the expansion screen (3) which is turned 180 degrees is locked.

5. The computer screen splitting device according to claim 4, further comprising a first spring (T), wherein the first spring (T) is installed in the stepped groove (2a) and has one end abutting against the second end of the locking member (5) and the other end abutting against the inner surface of the stepped groove (2 a).

6. The computer screen splitting device of claim 1, wherein a magnetic attraction piece (S1) is further disposed at the top of the inner wall surface of the first accommodating cavity (21), and a magnetic attraction block (S2) is disposed on the keyboard (4) corresponding to the magnetic attraction piece (S1) so that the keyboard (4) can be attracted and fixed in the first accommodating cavity (21) when in the first state.

7. The computer screen splitting device according to claim 1, wherein the keyboard (4) is a bluetooth keyboard, and the back of the keyboard (4) is provided with a wear-resistant coating (N).

8. The computer screen splitting device according to claim 1, further comprising a blocking member (6), wherein a second bayonet (2B) communicating the first accommodating cavity (21) and the second accommodating cavity (22) is arranged at one side of the accommodating frame (2) hinged to the keyboard (4), and blocking holes (2B1) are arranged at two ends of the second bayonet (2B); the hinged end of the keyboard (4) is designed corresponding to the second bayonet (2B), and the hinged end of the keyboard (4) is provided with a stepped hole (4a) and a second moving groove (4B) communicated with the stepped hole (4 a);

the clamping piece (6) comprises a first clamping rod (61), a second clamping rod (62) and a second spring (63), the first clamping rod (61) and the second clamping rod (62) are movably mounted in the stepped hole (4a), the second spring (63) is mounted in the middle of the tail ends of the first clamping rod (61) and the second clamping rod (62), clamping blocks (6a) are arranged at the head ends of the first clamping rod (61) and the second clamping rod (62), and the two clamping blocks (6a) can penetrate through the stepped hole (4a) to the corresponding clamping holes (2B 1); the first clamping rod (61) and the second clamping rod (62) are respectively provided with a second moving block (6B), the two second moving blocks (6B) penetrate through the second moving grooves (4B), the first clamping rod (61) and the second clamping rod (62) can be driven to move relatively by kneading the two second moving blocks (6B), and then the two clamping blocks (6a) are separated from the corresponding clamping holes (2B1), so that a user can detach the keyboard (4).

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