CN219842687U

CN219842687U - Screen shielding device

Info

Publication number: CN219842687U
Application number: CN202321081188.8U
Authority: CN
Inventors: 王韦翔; 施昭宇; 李美萱
Original assignee: Hefei Lianbao Information Technology Co Ltd
Current assignee: Hefei Lianbao Information Technology Co Ltd
Priority date: 2023-05-06
Filing date: 2023-05-06
Publication date: 2023-10-17
Anticipated expiration: 2033-05-06

Abstract

The utility model relates to the technical field of screen accessories, and provides a screen shielding device which is used for shielding a screen and comprises a shielding piece and a linkage mechanism; the shielding piece is arranged on the back side of the screen and at least partially extends out of the side part of the screen; the linkage mechanism is respectively connected with the shielding piece in a transmission way; the shielding piece can push and pull to adjust the length of the shielding piece extending out of the screen; when the shielding piece stretches out in a pulling way, the linkage mechanism synchronously drives the screen to move away from the shielding piece, and the shielding piece is folded and rotated towards the side part of the screen; when the shielding piece is pushed to retract, the linkage mechanism synchronously drives the screen to move close to the shielding piece, and the shielding piece is diffused and rotated away from the side part of the screen. The screen shielding device has the beneficial effects of simple structure, convenience in operation, suitability for open office environments and capability of fully protecting the privacy confidentiality of user work.

Description

Screen shielding device

Technical Field

The disclosure relates to the technical field of screen accessories, in particular to a screen shielding device.

Background

Taking a common computer display screen in the prior art as an example, a conventional computer display screen can only play a role in shielding on the back of the computer display screen, and can not effectively shield the left side and the right side of the computer display screen, so that the computer display screen is particularly unsuitable for an open office environment, is unfavorable for creating a working environment with quiet concentration for staff and is unfavorable for protecting the office privacy of the staff.

In view of this, there is a need in the market for a screen shielding device capable of shielding and adjusting the left and right sides of a display screen, so that a user can shield the left and right sides of a computer display screen according to the needs of the user.

Disclosure of Invention

The embodiment of the disclosure provides a screen shielding device, which is used for solving the problem that the left side and the right side of a display screen in the prior art cannot be effectively shielded and are not suitable for an open office environment.

The screen shielding device is used for shielding a screen and comprises a shielding piece and a linkage mechanism;

the shielding piece is arranged on the back side of the screen and at least partially extends out of the side part of the screen;

the linkage mechanism is respectively in transmission connection with the shielding piece and the screen;

wherein, the shielding piece can push and pull to adjust the length of the shielding piece extending out of the screen;

when the shielding piece stretches out, the linkage mechanism synchronously drives the screen to move away from the shielding piece, and the shielding piece is folded and rotated towards the side part of the screen;

when the shielding piece is pushed to retract, the linkage mechanism synchronously drives the screen to move close to the shielding piece, and the shielding piece is separated from the lateral part of the screen to diffuse and rotate.

In an embodiment, the screen shielding device further comprises a fixing seat;

the fixed seats are arranged at intervals on one side of the shielding piece, which is opposite to the screen, and are in transmission connection with the linkage mechanism;

when the shielding piece stretches or retracts, the linkage mechanism correspondingly drives the fixing seat to move away from or close to the screen.

In one embodiment, the linkage mechanism comprises a rotating rod, a hinge and a sliding groove;

one end of the rotating rod is hinged to the back side of the screen;

the hinge piece comprises a hinge joint which is hinged in the shielding piece and a swinging rod connected with the hinge joint;

the sliding groove is formed in the fixed seat, and the swinging rod is inserted into the sliding groove and hinged with the other end of the rotating rod;

wherein, when the shielding piece is pushed and pulled to move:

the hinge head rotates and drives the swing rod to slide along the sliding groove;

the rotating rod rotates to change the included angle between the shielding piece and the side part of the screen and change the distance between the screen and the fixed seat.

In an embodiment, the linkage mechanism further includes a positioning member disposed on a back side of the screen;

the positioning piece is used for positioning and guiding the direction of the screen far away from or near to the fixed seat and can be at least partially inserted into the fixed seat.

In an embodiment, the positioning element is a positioning guide bar vertically arranged on the back side of the screen;

the positioning guide strip is provided with a kidney-shaped guide hole along the self extending direction, and the fixing seat is correspondingly provided with a positioning pin inserted into the kidney-shaped guide hole;

when the screen moves far away from or near to the fixed seat, the positioning pin slides relatively along the kidney-shaped guide hole.

In one embodiment, the two hinges are arranged at intervals along the axial direction of the hinge;

the swinging rod comprises a first sub-rod vertically hinged with the two hinged joints respectively and a second sub-rod connecting the two first sub-rods;

the second sub-rod is inserted in the sliding groove and hinged with the other end of the rotating rod.

In one embodiment, the shield comprises a first sub-member and a second sub-member;

the first sub-piece and the second sub-piece are symmetrically arranged about the vertical central axis of the screen and are respectively in transmission connection with the fixed seat and the screen through respective hinge pieces.

In one embodiment, the two rotating rods are symmetrically arranged about the central axis of the screen;

the two rotating rods are connected to the center of the screen together and are hinged with the swinging rods in the first sub-piece and the second sub-piece correspondingly.

In an embodiment, the side of the screen is further provided with a guide;

a guide part is arranged in the shielding piece along the self extending direction;

the guide piece is correspondingly inserted into the guide part and can slide back and forth along the guide part when the shielding piece is pushed and pulled to move.

In an embodiment, the guide is a guide head inclined away from the side of the screen;

the guide part is a guide groove along the extending direction of the shielding piece, and the guide head is at least partially clamped and inserted into the guide groove.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

when the screen shielding device provided by the embodiment of the disclosure is used, the shielding piece is pulled out gradually from the side part of the screen, the linkage mechanism can synchronously drive the screen to move away from the shielding piece gradually, the shielding piece is gradually folded and rotated towards the side part of the screen, and the shielding degree of the side part of the screen can be correspondingly adjusted according to the stretching degree of the shielding piece from the side part of the screen; when the left side and the right side of the screen are not required to be shielded, the shielding piece is only required to be pushed back from the side part of the screen, and the linkage mechanism can synchronously drive the screen to gradually move towards the shielding piece, so that the side part of the shielding piece deviating from the screen gradually diffuses and rotates until the shielding effect is not generated on the side part of the screen.

The screen shielding device can change the shielding degree of the shielding piece on two sides of the screen in a stretching or pushing manner, can enable a user to shield the left side and the right side of the screen to different degrees according to the work requirement of the user, and has the beneficial effects of being simple in structure, convenient to operate, suitable for an open office environment and capable of fully protecting the privacy confidentiality of the user.

It should be understood that the description in this section is not intended to identify key or critical features of the embodiments of the disclosure, nor is it intended to be used to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following specification.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings, in which:

in the drawings, the same or corresponding reference numerals indicate the same or corresponding parts.

FIG. 1 illustrates a top view of a screen saver provided by an embodiment of the present disclosure;

FIG. 2 illustrates a front view (without screen) of a screen blocking apparatus provided by an embodiment of the present disclosure;

FIG. 3 illustrates a back view (without a mount) of a screen saver provided by an embodiment of the present disclosure;

FIG. 4 shows a schematic view of a linkage mechanism in a screen saver device provided by an embodiment of the present disclosure;

FIG. 5 illustrates a lateral cross-sectional view of a screen saver provided by an embodiment of the present disclosure;

fig. 6 shows a schematic view of a swing lever in a screen shielding device provided by an embodiment of the present disclosure.

The reference numerals in the figures illustrate: 1. a screen; 11. a guide member; 2. a shield; 21. a first sub-component; 22. a second sub-component; 23. a guide part; 3. a fixing seat; 31. positioning pins; 4. a linkage mechanism; 41. a rotating lever; 42. a hinge joint; 43. a swinging rod; 431. a first sub-lever; 432. a second sub-lever; 44. a sliding groove; 45. and a positioning piece.

Detailed Description

In order to make the objects, features and advantages of the present disclosure more comprehensible, the technical solutions in the embodiments of the present disclosure will be clearly described in conjunction with the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, but not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person skilled in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.

Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

As shown in conjunction with fig. 1, 2 and 5, embodiments of the present disclosure provide a screen shielding device for shielding a screen 1, which includes a shielding member 2 and a linkage mechanism 4; the shielding element 2 is arranged on the back side of the screen 1 and at least partially extends out of the side of the screen 1; the linkage mechanism 4 is respectively connected with the shielding piece 2 in a transmission way; wherein the shutter 2 can be pushed and pulled to adjust the length of the shutter extending out of the screen 1.

When the shielding piece 2 stretches out in a pulling way, the linkage mechanism 4 synchronously drives the screen 1 to move away from the shielding piece 2, and the shielding piece 2 is folded and rotated towards the side part of the screen 1; when the shielding piece 2 is pushed to retract, the linkage mechanism 4 synchronously drives the screen 1 to move close to the shielding piece 2, and the shielding piece 2 is in diffusion rotation away from the side part of the screen 1.

When the screen shielding device is used, when a user shields the left side and the right side of the screen 1 according to the work requirement of the user, the shielding piece 2 is pulled out gradually from the side part of the screen 1, at the moment, the linkage mechanism 4 synchronously drives the screen 1 to move away from the shielding piece 2 gradually, and the shielding piece 2 is gradually folded and rotated towards the side part of the screen 1, so that the shielding degree of the side part of the screen 1 can be correspondingly adjusted according to the stretching out degree of the shielding piece 2 from the side part of the screen 1; when a user does not need to shade the left side and the right side of the screen 1, the shielding piece 2 is pushed back from the side part of the screen 1, and the linkage mechanism 4 can synchronously drive the screen 1 to gradually move towards the shielding piece 2, and the shielding piece 2 gradually diffuses and rotates away from the side part of the screen 1 until the shielding piece 2 does not generate shielding effect on the side part of the screen 1.

It should be noted that the shielding member 2 may be, but not limited to, an arc plate, and may be disposed on the left and right sides of the screen 1 respectively, and be in transmission connection with the linkage mechanism 4 together; the moving range of the screen 1 towards or away from the shielding piece 2 can be specifically set to be about 15cm, so that the shielding piece 2 can be ensured to be folded and rotated towards the side part of the screen 1 to have enough avoiding space, and the screen shielding device cannot occupy too large space; and when the shielding pieces 2 are gradually folded and rotated towards the side parts of the screen 1, the two shielding pieces 2 are rotated to the included angle of the furthermost state to be specifically arranged at about 110 degrees, so that the shielding effect of the shielding pieces 2 on the left side and the right side of the screen 1 can be ensured, the included angle of the two shielding pieces 2 is not too small, and the normal display of the screen 1 is affected.

To sum up, the screen shielding device provided by the embodiment of the disclosure can change the shielding degree of the shielding piece 2 to the two sides of the screen 1 by stretching or pushing the shielding piece 2, so that a user can shield the left and right sides of the screen 1 to different degrees according to the work requirement of the user, and the screen shielding device has the beneficial effects of simple structure, convenience in operation, suitability for an open office environment and capability of fully protecting the privacy confidentiality of the user.

In an embodiment, the screen shielding device further comprises a fixing seat 3; the fixed seats 3 are arranged at intervals on one side of the shielding piece 2, which is opposite to the screen 1, and are in transmission connection with the linkage mechanism 4; when the shielding piece 2 stretches or retracts, the linkage mechanism 4 correspondingly drives the fixed seat 3 to move away from or close to the screen 1.

Specifically, as described in further detail with reference to fig. 1 and 5, the above-mentioned fixing seat 3 may be specifically used for fixedly placing and connecting with a workbench, and the fixing seat 3 is disposed at a side of the shielding element 2 opposite to the screen 1 and is in transmission connection with the linkage mechanism 4, so that when the shielding element 2 stretches, the fixing seat 3 can be used as a fixed reference stress supporting portion, so that the screen 1 can correspondingly move away from the fixing seat 3 under the driving of the linkage mechanism 4, and an avoidance space is provided for the folding and rotating of the shielding element 2 towards the side of the screen 1; when the shielding piece 2 is retracted, the fixed seat 3 can also be used as a fixed reference stress supporting part, so that the screen 1 can correspondingly move towards the fixed seat 3 under the drive of the linkage mechanism 4, and the screen 1, the shielding piece 2 and the fixed seat 3 can form a more compact space structure.

In one embodiment, the linkage 4 includes a rotating lever 41, a hinge, and a sliding slot 44; one end of the rotating rod 41 is hinged to the back side of the screen 1; the hinge comprises a hinge head 42 hinged in the shutter 2 and a swinging rod 43 connected to the hinge head 42; the sliding groove 44 is opened in the fixed seat 3, and the swinging rod 43 is inserted in the sliding groove 44 and hinged with the other end of the rotating rod 41.

Wherein, when the shielding piece 2 is pushed and pulled to move: the hinge joint 42 rotates and drives the rotating rod 41 and the swinging rod 43 to slide along the sliding groove 44 respectively; the rotation of the rotating rod 41 changes the angle between the shielding member 2 and the side of the screen 1 and changes the distance between the screen 1 and the fixed seat 3.

Specifically, as described in further detail with reference to fig. 3 and 4, the linkage mechanism 4 is specifically configured such that one end of the linkage mechanism is hinged to the back side rotating rod 41 of the screen 1, the hinge 42 is hinged to the cover 2, the swinging rod 43 is connected to the hinge 42, and the sliding slot 44 is formed in the fixing base 3, and the swinging rod 43 is inserted into the sliding slot 44 and hinged to the other end of the rotating rod 41, so that when the cover 2 is pushed and pulled, the hinge 42 rotates and drives the rotating rod 41 and the swinging rod 43 to slide along the sliding slot 44, thereby changing the included angle between the cover 2 and the side portion of the screen 1 and changing the distance between the screen 1 and the fixing base 3.

The specific setting mode of the linkage mechanism 4 has the beneficial effects of simple structure and stable transmission, and can effectively change the included angle between the shielding piece 2 and the side part of the screen 1 and change the distance between the screen 1 and the fixed seat 3 when the shielding piece 2 is pushed and pulled.

Of course, the above-mentioned linkage mechanism 4 may be configured in other structures, for example, a structure of a "rotation mechanism+translation mechanism", in which the angle between the back side of the screen 1 and the shutter 2 is changed by the "rotation mechanism", and the distance between the screen 1 and the fixing base 3 is changed by the "translation mechanism".

In an embodiment, the linkage mechanism 4 further includes a positioning member 45 disposed on the back side of the screen 1; the positioning member 45 is used for positioning the guide screen 1 in a direction away from or close to the fixing base 3, and can be at least partially inserted into the fixing base 3.

Specifically, as described in further detail with reference to fig. 3 and 5, a positioning element 45 located on the back side of the screen 1 is further disposed in the linkage mechanism 4 and is at least partially inserted into the fixing seat 3, so that when the screen 1 moves away from or near to the fixing seat 3, the positioning element 45 can position a path leading to the screen 1, so as to ensure that the movement track of the screen 1 does not deviate, that is, ensure that the closing angle between the shielding element 2 and the side of the screen 1 can be kept uniform during multiple movements of the screen 1.

In one embodiment, the positioning element 45 is a positioning guide bar vertically disposed on the back side of the screen 1; the positioning guide strip is provided with a kidney-shaped guide hole along the self extending direction, and the fixed seat 3 is correspondingly provided with a positioning pin 31 inserted in the kidney-shaped guide hole; when the screen 1 moves away from or close to the fixing base 3, the positioning pin 31 slides relatively along the kidney-shaped guide hole.

Specifically, as described in further detail with reference to fig. 3 and 6, the positioning element 45 is specifically configured as a positioning guide strip located on the back side of the screen 1, and the positioning guide strip is provided with a kidney-shaped guide hole along its extending direction, and a positioning pin 31 inserted into the kidney-shaped guide hole is correspondingly disposed in the fixing seat 3, so that the positioning element 45 can only relatively slide along the kidney-shaped guide hole through the positioning pin 31, thereby realizing the path function of positioning the positioning element 45 to guide the screen 1.

The specific setting mode of the positioning piece 45 has the beneficial effects of simple structure and stable and reliable positioning effect.

In one embodiment, the hinge 42 is provided with two hinges at intervals along its axial direction; the swing lever 43 includes first sub-levers 431 vertically hinged to the two hinge joints 42, respectively, and second sub-levers 432 connecting the two first sub-levers 431; the second sub-rod 432 is inserted into the slide groove 44 and hinged to the other end of the rotation rod 41.

Specifically, as described in further detail with reference to fig. 6, the hinge joint 42 is provided with two first sub-rods 431 respectively perpendicularly hinged to the hinge joint 42 and two second sub-rods 432 respectively connected to the first sub-rods 431, so that the hinge joint 42 and the hinge rod 43 are integrally formed in a structure similar to a "convex" shape, the two hinge joints 42 are hinged together with one shutter 2, the stability of hinge installation of the shutter 2 can be further improved, and the one second sub-rod 432 is connected to the two hinge joints 42 through the two second sub-rods 432 respectively, so that when the second sub-rods 432 slide in the slide grooves 44, the hinge angles of the two hinge joints 42 can be simultaneously and synchronously changed.

The specific arrangement of the hinge joint 42 and the swing lever 43 has the advantages of simple structure and capability of further improving the stability of the hinge installation of the shielding member 2.

In an embodiment, the shutter 2 comprises a first sub-element 21 and a second sub-element 22; the first sub-element 21 and the second sub-element 22 are symmetrically arranged about the vertical central axis of the screen and are respectively in transmission connection with the fixed seat 3 and the screen 1 through respective hinge elements.

Specifically, as described in further detail with reference to fig. 5, the shutter 2 is specifically configured as a first sub-member 21 and a second sub-member 22, and the first sub-member 21 and the second sub-member 22 are symmetrically disposed about the vertical central axis of the screen and are respectively in driving connection with the fixing base 3 and the screen 1 through respective hinge members. Thus, the first sub-component 21 and the second sub-component 22 can synchronously shield the left side part and the right side part of the screen 1 at the same time, and the full protection effect of the screen shielding device on the privacy confidentiality of the user work is further improved.

In one embodiment, the rotation lever 41 is symmetrically arranged in two about the central axis of the screen 1; the two rotating levers 41 are connected to the center of the screen 1 in common and hinged to the swinging levers 43 in the first and second sub-members 21, 22, respectively.

Specifically, as described in further detail with reference to fig. 3 and 4, two rotating rods 41 are symmetrically arranged about the central axis of the screen 1 and are respectively hinged to the swinging rods 43 in the first sub-component 21 and the second sub-component 22, so that even if a user only pushes and pulls the first sub-component 21, as long as the screen 1 moves towards or away from the fixing base 3, the two rotating rods 41 rotate to change the included angle with the swinging rods 43, and then the second sub-component 22 is driven to move synchronously with the first sub-component 21.

The specific arrangement of the rotating rod 41 has the advantages of simple structure and capability of ensuring the synchronous movement of the first sub-component 21 and the second sub-component 22.

In an embodiment, the side of the screen 1 is also provided with guides 11; the shielding member 2 is provided with a guide part 23 along the self extending direction; the guide 11 is inserted into the guide portion 23, and can slide back and forth along the guide portion 23 when the shutter 2 is pushed and pulled.

Specifically, as described in further detail with reference to fig. 5 and 6, the side portion of the screen 1 is provided with the guide 11, the guide portion 23 is provided in the shielding member 2 along the extending direction thereof, and the guide 11 is correspondingly inserted into the guide portion 23 and can slide reciprocally along the guide portion 23 when the shielding member 2 is pushed and pulled, so that when the user pushes and pulls the shielding member 2 to make the shielding member 2 rotate or rotate in a diffusing manner towards the side portion of the screen 1, the guide 11 can slide in a limited manner along the extending direction of the guide portion 23, thereby further limiting the track of the folding rotation or the diffusing rotation of the shielding member 2 and further ensuring the shielding effect of the shielding member 2 on the side portion of the screen 1 and the stability of the movement of the shielding member 2.

In an embodiment, the guide 11 is a guide head inclined away from the side of the screen 1; the guide portion 23 is a guide groove along the extending direction of the shielding member 2, and the guide head is at least partially clamped and inserted into the guide groove.

Specifically, in connection with the further detailed description of fig. 5 and 6, the guide piece 11 is specifically set to be a guide head which is inclined away from the side part of the screen 1, the guide part 23 is specifically set to be a guide groove along the extending direction of the shielding piece 2, and the guide limiting of the two can be realized in a mode of being clamped and inserted in the guide groove through the guide head, so that the device has the advantages of simple structure and stable guide.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present disclosure, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

The foregoing is merely specific embodiments of the disclosure, but the protection scope of the disclosure is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the disclosure, and it is intended to cover the scope of the disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. A screen shielding device for shielding a screen (1), characterized by comprising:

a shutter (2) which is provided on the back side of the screen (1) and which extends at least partially out of the side of the screen (1);

the linkage mechanism (4) is respectively connected with the shielding piece (2) and the screen (1) in a transmission way;

wherein the shielding piece (2) can push and pull to adjust the length of the shielding piece extending out of the screen (1);

when the shielding piece (2) is pulled out, the linkage mechanism (4) synchronously drives the screen (1) to move away from the shielding piece (2), and the shielding piece (2) is folded and rotated towards the side part of the screen (1);

when the shielding piece (2) is pushed to retract, the linkage mechanism (4) synchronously drives the screen (1) to move close to the shielding piece (2), and the shielding piece (2) is in diffuse rotation away from the side part of the screen (1).

2. Screen shielding device according to claim 1, characterized in that it further comprises a fixed seat (3);

the fixed seats (3) are arranged at intervals on one side of the shielding piece (2) opposite to the screen (1) and are in transmission connection with the linkage mechanism (4);

when the shielding piece (2) stretches or retracts, the linkage mechanism (4) correspondingly drives the fixing seat (3) to move away from or close to the screen (1).

3. A screen shielding device according to claim 2, wherein the linkage (4) comprises:

one end of the rotating rod (41) is hinged to the back side of the screen (1);

the hinge piece comprises a hinge joint (42) which is hinged in the shielding piece (2) and a swinging rod (43) which is connected with the hinge joint (42);

a sliding groove (44) which is arranged on the fixed seat (3), and the swinging rod (43) is inserted in the sliding groove (44) and hinged with the other end of the rotating rod (41);

wherein, when the shielding piece (2) is pushed and pulled to move:

the hinge head (42) rotates and drives the swing rod (43) to slide along the sliding groove (44);

the rotating rod (41) rotates to change the included angle between the shielding piece (2) and the side part of the screen (1) and change the distance between the screen (1) and the fixed seat (3).

4. A screen shielding device according to claim 3, characterized in that the linkage (4) further comprises a positioning element (45) arranged on the back side of the screen (1);

the positioning piece (45) is used for positioning and guiding the direction of the screen (1) away from or towards the fixed seat (3), and can be at least partially inserted into the fixed seat (3).

5. A screen shielding device according to claim 4, characterized in that the positioning element (45) is a positioning guide bar arranged vertically on the back side of the screen (1);

the positioning guide strip is provided with a kidney-shaped guide hole along the self extending direction, and the fixing seat (3) is correspondingly provided with a positioning pin inserted into the kidney-shaped guide hole;

when the screen (1) moves far away from or close to the fixing seat (3), the positioning pin slides relatively along the kidney-shaped guide hole.

6. A screen shielding device according to claim 3, characterized in that said hinge (42) is provided with two spaced apart joints along its own axis;

the swinging rod (43) comprises a first sub-rod (431) vertically hinged with the two hinged joints (42) respectively and a second sub-rod (432) connecting the two first sub-rods (431);

the second sub rod (432) is inserted into the sliding groove (44) and hinged with the other end of the rotating rod (41).

7. A screen shielding device according to claim 6, wherein the shielding element (2) comprises a first sub-element (21) and a second sub-element (22);

the first sub-piece (21) and the second sub-piece (22) are symmetrically arranged about the vertical central axis of the screen and are respectively in transmission connection with the fixed seat (3) and the screen (1) through respective hinge pieces.

8. Screen shielding device according to claim 7, characterized in that the rotating lever (41) is arranged symmetrically with respect to the central axis of the screen (1) in two;

the two rotating rods (41) are connected to the center of the screen (1) together and are hinged with the swinging rods (43) in the first sub-piece (21) and the second sub-piece (22) correspondingly.

9. Screen shielding device according to any one of claims 1 to 8, characterized in that the side of the screen (1) is further provided with a guide (11);

a guide part (23) is arranged in the shielding piece (2) along the self extending direction;

the guide piece (11) is correspondingly inserted into the guide part (23) and can slide back and forth along the guide part (23) when the shielding piece (2) is pushed and pulled to move.

10. A screen shielding device according to claim 9, characterized in that the guide (11) is a guide head inclined away from the side of the screen (1);

the guide part (23) is a guide groove along the extending direction of the shielding piece (2), and the guide head is at least partially clamped and inserted into the guide groove.