A screen device based on angle adjustment

Abstract

The application relates to the technical field of paperless conference screens, in particular to a screen device based on angle and position adjustment, which comprises a base and a screen mechanism, wherein the base comprises a box body, a control keyboard, a mounting groove and a lifting unit, the screen mechanism comprises a screen, a scissor unit and a back plate, and the control keyboard comprises a plurality of control buttons and a control computer. The application improves the reliability of the paperless conference screen, strengthens the structural stability, increases the adjustable angle of the screen, makes the adjustment mode more free and labor-saving, improves the user experience, provides effective desktop writing support after meeting the turnover demand of the turnover screen, and can adjust the screen height and horizontal position at multiple angles to change the visual range.

Description

Technical Field

[0001] This invention relates to the field of paperless meeting screen technology, and more particularly to a screen device based on angle and position adjustment. Background Technology

[0002] To meet the requirements of convenience and tidiness in paperless conferencing systems, most conference monitors adopt a hidden design. Currently, there are two main types of conference monitors: lift-up and flip-up. Lift-up monitors can only meet display requirements, but in some conference scenarios, they need to be operated with peripherals such as mice or keyboards. In this regard, flip-up monitors perform better. However, most flip-up devices on the market have low reliability, unstable structure, and small flip angle, which cannot be freely adjusted, resulting in a poor user experience. At the same time, after meeting the flip-up requirements, flip-up screens cannot provide effective desktop writing support. Moreover, when the screen is open, the view in front of the user is blocked by the screen, and it is inconvenient to adjust it to increase the view in front of the user. Therefore, there is an urgent need for a liftable, hidden flip-up conference screen device that can adjust the screen height and horizontal position at multiple angles to change the field of view.

[0003] Chinese Patent Publication No. CN110260119A discloses a screen flipping device for a paperless conference system, including: a panel assembly, a screen assembly, a drive assembly, and a baffle lifting assembly; the panel assembly includes an upper panel, the screen assembly includes a screen bracket and a display screen, the display screen is mounted on the screen bracket, and the two ends of the screen bracket are movably connected to the upper panel through rotating shafts; the drive assembly includes a drive motor, a motor bracket, a drive wheel, and a long connecting rod, and the baffle lifting assembly includes a lifting side plate, a baffle assembly, and a lifting drive assembly. The screen flipping device of this invention has the advantages of simple structure and convenient use. Its screen flipping angle is specifically composed of a fixed flipping angle at the front and a freely adjustable angle at the rear. The screen has a certain degree of free adjustment space when flipped, allowing users to freely adjust the screen flipping angle according to specific usage needs. However, the screen flipping device of the paperless meeting system still has the following problems: 1) When the screen is opened via the hinge, it is fixedly connected to the desktop, causing obstruction of the user's field of vision; 2) Because the screen is fixedly connected to the desktop, it is impossible to adjust the screen's horizontal position while maintaining a constant tilt or elevation angle; 3) The desktop can only provide writing support after the screen is opened. When the user needs to observe the front and needs writing support, the screen must be closed, but the desktop space may not support the screen's rotation and closure, which is inconvenient; 4) Although the screen hinge can be designed to rotate outwards to increase desktop space, the space in front will inevitably be encroached upon, increasing space occupancy and reducing the number of paperless meeting tables that can be placed in a limited space, thus reducing space utilization and increasing economic costs. Summary of the Invention

[0004] To address this issue, the present invention provides a screen device based on angle and position adjustment, which overcomes the problem that paperless conference screens in the prior art lack electric assistance during adjustment.

[0005] To achieve the above objectives, the present invention provides a screen device based on angle and position adjustment, comprising a base and a screen mechanism, wherein,

[0006] The base includes a housing, a control keyboard, a mounting slot, and a lifting unit. The housing supports the screen mechanism, the control keyboard is located on the top surface of the housing and is used to control the screen mechanism, the mounting slot is located at the rear of the housing and is used to store the screen mechanism, the lifting unit is located inside the housing and is connected to the screen mechanism, the lifting unit is used to lift the screen mechanism, and the base supports the screen mechanism.

[0007] The screen mechanism includes a screen, a scissor unit, and a back plate. The screen is located on one side of the screen mechanism. One end of the scissor unit is connected to the screen. The scissor unit is used to position the screen at a corresponding horizontal position and tilt angle through corresponding scissor angles. The scissor unit is connected to one side of the back plate. The back plate is used to fix one end of the scissor unit and drive one end of the scissor unit to move in a preset direction. The back plate also includes several lifting plates, which are respectively located at both ends of the rear of the back plate. The lifting plates include a first lifting plate and a second lifting plate. Each lifting plate is connected to a lifting unit. The lifting plates are used to support and fix the screen mechanism and transmit the force of the lifting unit.

[0008] The control keyboard includes several control buttons and a control computer. The control buttons are located on one side of the top surface of the enclosure and are used to correspond to different control commands. The control computer is connected to the control buttons, the lifting unit, and the scissor lift unit. The control computer is used to control the corresponding units according to the different triggered control buttons. Each unit includes a lifting unit and a scissor lift unit.

[0009] The lifting unit includes a bearing structure and a worm gear trapezoidal screw assembly, wherein,

[0010] The load-bearing structure includes several load-bearing blocks and load-bearing rods. The load-bearing blocks are connected to one end of the lifting plate and the load-bearing rod, respectively. The load-bearing blocks include a first load-bearing block and a second load-bearing block. The load-bearing blocks transmit the force of the lifting rod in a preset direction and also constrain the lifting angle of the screen mechanism during lifting. The load-bearing rods connect the load-bearing blocks to a worm gear trapezoidal screw assembly. Each load-bearing rod has a first lifting ring and a second lifting ring, which mesh with the worm gear trapezoidal screw assembly. Each lifting ring causes the lifting rod to lift at a preset horizontal angle. The load-bearing rods ensure that the force generated by the worm gear trapezoidal screw assembly is evenly distributed to each load-bearing block.

[0011] The worm gear trapezoidal lead screw assembly includes a first trapezoidal lead screw, a second trapezoidal lead screw, a first worm gear module, a second worm gear module, a first power module, and a second power module. Each trapezoidal lead screw is disposed within a housing below a mounting slot. Each trapezoidal lead screw is connected to the top surface of the housing, the bottom surface of the housing, a load-bearing ring, and the corresponding worm gear module. Each trapezoidal lead screw transmits the torque of the worm gear module to its corresponding load-bearing ring, and causes the load-bearing ring to move perpendicularly to its corresponding trapezoidal lead screw by a preset distance and in a preset direction. In this motion, each of the worm gear modules is respectively located at the bottom of the housing below the mounting slot, and is respectively connected to each of the trapezoidal lead screws and each of the power modules. Each worm gear module is used to direct the power output by each of the power modules. Each of the power modules is located at the bottom of the housing and is connected to each of the worm gear modules through corresponding transmission shafts. A parallel shaft is provided between each of the power modules to keep the rotational speed of each power module consistent. Each of the power modules is used to output torque at a preset speed to each of the worm gear modules.

[0012] The top of the screen mechanism is equipped with a hidden handle, which contains a pressure sensor. The pressure sensor is used to detect the magnitude of the pulling force on the hidden handle when the screen mechanism is stored in the mounting slot and the electric auxiliary mode is activated. This allows the control computer to determine whether the lifting unit should raise the screen mechanism to the preset position based on the comparison between the value of the pulling force on the hidden handle and the preset pulling force value.

[0013] The screen has a first sliding groove on the back side. The first sliding groove includes a first sliding point, a second sliding point, a third sliding point, and a fourth sliding point. The first sliding point is located on the upper left side of the screen, the second sliding point is located on the lower left side of the screen, the third sliding point is located on the upper right side of the screen, and the fourth sliding point is located on the lower right side of the screen. The first sliding groove is used to allow the universal rotation shaft connecting the scissor unit and the screen to make corresponding displacements within a preset sliding range of the first sliding groove. The universal rotation shaft includes a first universal rotation shaft, a second universal rotation shaft, a third universal rotation shaft, and a fourth universal rotation shaft.

[0014] The backplate has a second sliding groove on its front side, which includes a first sliding area and a second sliding area. The first and second sliding areas are triangular in shape and symmetrically arranged on the front side of the backplate. The second sliding groove allows the end of the scissor lift unit connected to the backplate to move within a preset area. An adjustment mechanism is provided inside the backplate, connected to the end of the scissor lift unit connected to the backplate. The adjustment mechanism includes an adjustment disc, a drive assembly, and an adjustment column.

[0015] The adjustment disc includes a first adjustment disc, a second adjustment disc, a third adjustment disc, and a fourth adjustment disc. All adjustment discs are coaxially arranged at the center of the back plate, and all adjustment discs have the same diameter. Drive units are respectively located above and below the adjustment discs.

[0016] The drive assembly includes a first drive source, a second drive source, a third drive source, and a fourth drive source. The first drive source is connected to the first adjusting disc, the second drive source is connected to the second adjusting disc, the third drive source is connected to the third adjusting disc, and the fourth drive source is connected to the fourth adjusting disc. The drive assembly is used to rotate the corresponding adjusting discs in a preset direction.

[0017] The adjustment column includes a first adjustment column, a second adjustment column, a third adjustment column, and a fourth adjustment column. The first adjustment column is connected to the first adjustment plate, the second adjustment column is connected to the second adjustment plate, the third adjustment column is connected to the third adjustment plate, and the fourth adjustment column is connected to the fourth adjustment plate. The adjustment column is used to connect the scissor lift unit and provide support at a preset position.

[0018] The first regulating column includes a first main column, a first sub-column, and a first power unit; the second regulating column includes a second main column, a second sub-column, and a second power unit; the third regulating column includes a third main column, a third sub-column, and a third power unit; and the fourth regulating column includes a fourth main column, a fourth sub-column, and a fourth power unit.

[0019] One end of each of the mother columns is connected to a corresponding adjusting disc, and the other end of each of the mother columns is connected to a corresponding daughter column. Each mother column is provided with a corresponding mother column sliding groove, including a first mother column sliding groove, a second mother column sliding groove, a third mother column sliding groove, and a fourth mother column sliding groove. Each mother column sliding groove is used to allow the corresponding daughter column to move a predetermined length along a predetermined direction of the ...

[0020] Each of the sub-columns is provided with a corresponding sub-column groove, including a first sub-column groove, a second sub-column groove, a third sub-column groove, and a fourth sub-column groove. Each sub-column groove also contains a corresponding bidirectional shaft, including a first bidirectional shaft, a second bidirectional shaft, a third bidirectional shaft, and a fourth bidirectional shaft. Each sub-column groove constrains the corresponding bidirectional shaft when it moves along a preset direction. Each bidirectional shaft supports one end of its corresponding connected scissor lift unit. Each bidirectional shaft can move within a preset range of the second groove.

[0021] The power unit is connected to each of the corresponding sub-columns. The power unit includes a first power unit, a second power unit, a third power unit, and a fourth power unit. The first power unit is located above the first sub-column, the second power unit is located below the second sub-column, the third power unit is located above the third sub-column, and the fourth power unit is located below the fourth sub-column.

[0022] The first power unit includes a first power device and a second power device. The first power device drives the first sub-column to move a preset length along the preset direction of the first mother column slide groove, thereby increasing the farthest distance between the first bidirectional shaft and the adjustment disk, thus increasing the relative distance range of one end of the scissor unit, and consequently increasing the adjustable angle and adjustable distance of the screen. The second power device drives the first bidirectional shaft to move a preset length along the first sub-column slide groove, thereby increasing the range of motion of the bidirectional shaft, thus increasing the relative distance range of one end of the scissor unit, and consequently increasing the adjustable angle and adjustable distance of the screen.

[0023] The second power unit includes a third power device and a fourth power device. The third power device drives the second sub-column to move a preset length along the preset direction of the second mother column slide groove, thereby increasing the farthest distance between the second bidirectional shaft and the adjustment disk, thus increasing the relative distance range of one end of the scissor unit, and consequently increasing the adjustable angle and adjustable distance of the screen. The fourth power device drives the second bidirectional shaft to move a preset length along the second sub-column slide groove, thereby increasing the range of motion of the bidirectional shaft, thus increasing the relative distance range of one end of the scissor unit, and consequently increasing the adjustable angle and adjustable distance of the screen.

[0024] The third power unit includes a fifth power device and a sixth power device. The fifth power device drives the third sub-column to move a preset length along the preset direction of the third mother column slide groove, thereby increasing the farthest distance between the third bidirectional shaft and the adjustment disk, thus increasing the relative distance range of one end of the scissor unit, and consequently increasing the adjustable angle and adjustable distance of the screen. The sixth power device drives the third bidirectional shaft to move a preset length along the third sub-column slide groove, thereby increasing the range of motion of the bidirectional shaft, thus increasing the relative distance range of one end of the scissor unit, and consequently increasing the adjustable angle and adjustable distance of the screen.

[0025] The fourth power unit includes a seventh power device and an eighth power device. The seventh power device is used to drive the fourth sub-column to move a preset length along the preset direction of the fourth mother column slide groove, thereby increasing the farthest distance between the fourth bidirectional shaft and the adjustment disk, thereby increasing the relative distance range of one end of the scissor unit, and thus increasing the adjustable angle and adjustable distance of the screen. The eighth power device is used to drive the fourth bidirectional shaft to move a preset length along the fourth sub-column slide groove, thereby increasing the range of motion of the bidirectional shaft, thereby increasing the relative distance range of one end of the scissor unit, and thus increasing the adjustable angle and adjustable distance of the screen.

[0026] The scissor lift unit includes a first transmission group, a second transmission group, a third transmission group, and a fourth transmission group. The first transmission group connects to a first omnidirectional shaft and a first bidirectional shaft; the second transmission group connects to a second omnidirectional shaft and a second bidirectional shaft; the third transmission group connects to a third omnidirectional shaft and a third bidirectional shaft; and the fourth transmission group connects to a fourth omnidirectional shaft and a fourth bidirectional shaft. Each transmission group is used to adjust the relative position and tilt angle of the screen relative to the back panel.

[0027] The first transmission assembly includes a first scissor lift column, a second scissor lift column, and a first adjustment device assembly, wherein the first adjustment device assembly includes a first adjustment device, a second adjustment device, and a third adjustment device.

[0028] One end of the first scissor lift column is connected to the first bidirectional shaft via a first adjusting device. The other end of the first scissor lift column is connected to one end of the second scissor lift column via a second adjusting device. The other end of the second scissor lift column is connected to the first universal joint shaft via a third adjusting device. The first adjusting device is used to adjust the relative angle between the first scissor lift column and the first bidirectional shaft. The second adjusting device is used to adjust the relative angle between the first scissor lift column and the second scissor lift column. The third adjusting device is used to adjust the relative angle between the second scissor lift column and the first universal joint shaft.

[0029] The second transmission assembly includes a third scissor lift, a fourth scissor lift, and a second adjustment device assembly. The second adjustment device assembly includes a fourth adjustment device, a fifth adjustment device, and a sixth adjustment device.

[0030] One end of the third scissor lift column is connected to the second bidirectional shaft via a fourth adjusting device. The other end of the third scissor lift column is connected to one end of the fourth scissor lift column via a fifth adjusting device. The other end of the fourth scissor lift column is connected to the second universal joint shaft via a sixth adjusting device. The fourth adjusting device is used to adjust the relative angle between the third scissor lift column and the second bidirectional shaft. The fifth adjusting device is used to adjust the relative angle between the third scissor lift column and the fourth scissor lift column. The sixth adjusting device is used to adjust the relative angle between the fourth scissor lift column and the second universal joint shaft.

[0031] The third transmission group includes the fifth scissor lift column, the sixth scissor lift column, and the third adjustment device group, wherein the third adjustment device group includes the seventh adjustment device, the eighth adjustment device, and the ninth adjustment device.

[0032] One end of the fifth scissor lift column is connected to the third bidirectional shaft via the seventh adjustment device. The other end of the fifth scissor lift column is connected to one end of the sixth scissor lift column via the eighth adjustment device. The other end of the sixth scissor lift column is connected to the third universal joint shaft via the ninth adjustment device. The seventh adjustment device is used to adjust the relative angle between the fifth scissor lift column and the third bidirectional shaft. The eighth adjustment device is used to adjust the relative angle between the fifth scissor lift column and the sixth scissor lift column. The ninth adjustment device is used to adjust the relative angle between the sixth scissor lift column and the third universal joint shaft.

[0033] The fourth transmission group includes the seventh scissor lift column, the eighth scissor lift column, and the fourth adjustment device group, wherein the fourth adjustment device group includes the tenth adjustment device, the eleventh adjustment device, and the twelfth adjustment device.

[0034] One end of the seventh scissor lift column is connected to the fourth bidirectional shaft via the tenth adjustment device. The other end of the seventh scissor lift column is connected to one end of the eighth scissor lift column via the eleventh adjustment device. The other end of the eighth scissor lift column is connected to the fourth omnidirectional shaft via the twelfth adjustment device. The tenth adjustment device is used to adjust the relative angle between the seventh scissor lift column and the fourth bidirectional shaft. The eleventh adjustment device is used to adjust the relative angle between the seventh scissor lift column and the eighth scissor lift column. The twelfth adjustment device is used to adjust the relative angle between the eighth scissor lift column and the fourth omnidirectional shaft.

[0035] Each of the aforementioned scissor lift posts is also provided with a hollowed-out slide rail, including a first hollowed-out slide rail for the first scissor lift post, a second hollowed-out slide rail for the second scissor lift post, a third hollowed-out slide rail for the third scissor lift post, a fourth hollowed-out slide rail for the fourth scissor lift post, a fifth hollowed-out slide rail for the fifth scissor lift post, a sixth hollowed-out slide rail for the sixth scissor lift post, a seventh hollowed-out slide rail for the seventh scissor lift post, and an eighth hollowed-out slide rail for the eighth scissor lift post. Each of the aforementioned hollowed-out slide rails is provided with a plurality of limiting posts, including a first limiting post, a second limiting post, a third limiting post, and a fourth limiting post. The first limiting post is disposed within the first and third hollowed-out slide rails and is used to control the relative movement direction and relative movement distance of the first and third scissor lift posts. The system includes a second limiting post positioned within the second and fourth hollow slide rails to constrain the relative movement direction and distance of the second and fourth scissor columns. A third limiting post is positioned within the fifth and seventh hollow slide rails to constrain the relative movement direction and distance of the fifth and seventh scissor columns. A fourth limiting post is positioned within the sixth and eighth hollow slide rails to constrain the relative movement direction and distance of the sixth and eighth scissor columns. Each limiting post can slide within its corresponding hollow slide rail and allows each scissor column to rotate within a preset range in the event of an adjustment malfunction.

[0036] Each of the aforementioned lifting plates is connected to its corresponding load-bearing block and is used to transmit the force of the load-bearing block in a preset direction to the back plate. Each of the aforementioned lifting plates also includes a fifth adjustment device group, which includes a thirteenth adjustment device and a fourteenth adjustment device. The thirteenth adjustment device is located at the top of the first lifting plate and connected to the back plate, and the fourteenth adjustment device is located at the top of the second lifting plate and connected to the back plate. The fifth adjustment device group is used to adjust the angle of the back plate relative to each of the aforementioned lifting plates in electric mode, thereby controlling the horizontal angle of the screen. In electric mode, the control computer controls the fifth adjustment device group to adjust the screen angle to be perpendicular to each of the aforementioned lifting plates according to the instructions input on the control keyboard. When the screen is perpendicular to the lifting plate, the control computer controls the lifting unit to lower the lifting plate into the housing.

[0037] Each of the aforementioned adjustment devices is further provided with a corresponding power source, including a first power source, a second power source, a third power source, a fourth power source, a fifth power source, a sixth power source, a seventh power source, an eighth power source, a ninth power source, a tenth power source, an eleventh power source, a twelfth power source, a thirteenth power source, and a fourteenth power source. The first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and twelfth power sources are respectively located on one side of their corresponding adjustment device. The thirteenth power source is located within the first lifting plate, and the fourteenth power source is located within the second lifting plate.

[0038] The back panel is also equipped with cushioning pads at the rear. The cushioning pads include a first cushioning pad and a second cushioning pad. The first cushioning pad is disposed in the space between the first lifting plate and the back panel, and the second cushioning pad is disposed in the space between the second lifting plate and the back panel. The cushioning pads are used to support and protect the back panel when it is placed horizontally on the box.

[0039] The control computer has an electric-assisted mode and an electric mode. In electric-assisted mode, the control computer stops receiving key input commands from the keyboard and, based on the force magnitude and direction detected by the pressure sensors of each adjustment device group, controls the output of a torque of a preset multiple to each adjustment device group. In electric mode, the control computer stops receiving force magnitude and direction detected by the pressure sensors of each adjustment device group and controls the corresponding scissor columns of each adjustment device group according to the key input commands from the control keyboard.

[0040] Compared with the prior art, the advantages of the present invention are as follows: First, the screen can be completely stored and protected inside the housing, while providing sufficient space for the lifting unit to use a more powerful power module.

[0041] Furthermore, the inclusion of electric and motorized modes avoids the damping rebound issues common in traditional paperless screens during manual adjustment, which can affect adjustment accuracy. Additionally, the control keyboard allows for free definition of the screen's angle and position, making it more ergonomically designed.

[0042] Furthermore, the included worm gear and trapezoidal lead screw assembly allows the height of the lifting plate to be automatically locked after the screen is raised, preventing the screen from falling abnormally during power outages and reducing maintenance costs.

[0043] Furthermore, the two sets of worm gear trapezoidal lead screws ensure greater stability and more even force distribution during screen lifting operations. The parallel shafts allow the power modules of both sets of worm gear trapezoidal lead screws to maintain the same rotational speed, increasing the power of the two sets while reducing tilting issues caused by speed differences during lifting operations.

[0044] Furthermore, thanks to the hidden handle at the top of the screen, the screen can be pulled out in power-assisted mode without taking much time or effort, making it smarter and more labor-saving than traditional manual paperless screens.

[0045] Secondly, the first sliding groove on the back of the screen allows one end of the scissor unit to change its scissor torque, thereby increasing the maximum extension angle and maximum tilt angle of the screen.

[0046] Furthermore, the second groove on the front of the back panel allows the other end of the scissor unit to change its scissor torque, thereby increasing the maximum extension angle and maximum tilt angle of the screen.

[0047] Furthermore, through the adjustment mechanism set in the back panel, the bidirectional axis can change its position according to the specific requirements of the screen for tilt and position, and thereby adjust the scissor angle of the scissor unit, so that the screen can change its relative position under the condition of satisfying the tilt, or change its tilt under the condition of satisfying its relative position.

[0048] Third, by setting an electrically controlled slide and an electrically controlled bidirectional shaft on the adjusting column of the adjusting mechanism, the adjusting column can be more intelligent in adjusting the movement of the scissor unit, and the control computer can accurately adjust the position and direction of movement of the bidirectional shaft relative to the scissor unit, so that the relative movement of the scissor unit causes a more precise tilt angle to the screen.

[0049] Fourth, the scissor lift mechanism allows the screen to have a wider range of horizontal adjustment angles, and the retractable nature of the scissor lift mechanism further reduces the space occupied by the screen when it is folded up.

[0050] Furthermore, by incorporating two sets of symmetrical scissor units, the screen becomes more stable when its angle is adjusted by the scissor units, while simultaneously increasing the adjustable angle of the screen tilt. The symmetrical arrangement of the scissor units also provides more options for the screen's tilt angle, and makes the adjustment method more intelligent and flexible.

[0051] Furthermore, the adjustment device provided in the scissor lift unit allows the control computer to adjust each scissor column of the scissor lift unit according to actual needs, making the adjustment of the screen angle by the scissor lift unit more intelligent and accurate. It also increases the scissor lift angle and range, enhancing the adjustability of the screen tilt angle.

[0052] Furthermore, the hollowed-out slides on the scissor columns allow the control computer to adjust each corresponding scissor column individually, ensuring that the corresponding scissor column moves while the others remain fixed. This increases the independent adjustability of the scissor columns, thereby increasing their adjustable range and the adjustable angle of the screen tilt.

[0053] Fifth, the electrically controlled bidirectional shaft allows the part of the adjustment mechanism connected to the scissor lift unit to rotate freely in the X and Y axes, and the adjustment mechanism can also move the electrically controlled bidirectional shaft in the Z axis direction. This allows the end of the scissor lift unit connected to the back plate to be electrically controlled for omnidirectional adjustment and to rotate, thereby changing the direction of force. This increases the number of fixed positions of the scissor lift unit, making the adjustment of the scissor lift unit more flexible and intelligent.

[0054] Sixth, the universal rotating shaft allows the connection point of the screen to the scissor unit to rotate freely, increasing the screen tilt angle while providing a stable force-bearing structure for the screen. Attached Figure Description

[0055] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0056] Figure 1 This is a schematic diagram of the front structure of the screen device based on angle and position adjustment according to an embodiment of the present invention;

[0057] Figure 2 This is a schematic diagram of the top surface structure of the screen device based on angle and position adjustment according to an embodiment of the present invention;

[0058] Figure 3 This is a schematic diagram of the rear view structure of the screen device based on angle and position adjustment according to an embodiment of the present invention after it has been unfolded.

[0059] Figure 4 This is a schematic diagram of the lifting unit of the screen device based on angle and position adjustment according to an embodiment of the present invention;

[0060] Figure 5 This is a rear view structural diagram of the screen of the screen device based on angle and position adjustment according to an embodiment of the present invention;

[0061] Figure 6 This is a schematic diagram of the adjustment mechanism inside the back panel of the screen device based on angle and position adjustment according to an embodiment of the present invention.

[0062] Figure 7 This is a schematic diagram of the scissor unit of the screen mechanism of the screen device based on angle and position adjustment according to an embodiment of the present invention.

[0063] Figure 8 This is a schematic diagram of the screen device based on angle and position adjustment according to an embodiment of the present invention when the back panel is horizontally placed on the cabinet.

[0064] In the diagram, 1 is the screen mechanism, 2 is the base, 3 is the screen, 4 is the hidden handle, 5 is the control keyboard, 6 is the first lifting plate, 7 is the second lifting plate, 8 is the back plate, 9 is the first cushioning pad, 10 is the second cushioning pad, 11 is the thirteenth adjustment device, 12 is the fourteenth adjustment device, 13 is the first load-bearing block, 14 is the second load-bearing block, 15 is the load-bearing rod, 16 is the first lifting ring, 17 is the second lifting ring, 18 is the first trapezoidal lead screw, 19 is the second trapezoidal lead screw, 20 is the first worm gear module, 21 is the second worm gear module, and 22 is the first power module. The system includes: second power module 23, drive shaft 24, parallel shaft 25, first slide groove 26, first sliding point 261, second sliding point 262, third sliding point 263, fourth sliding point 264, adjusting disc 27, first drive source 28, second drive 29, third drive source 30, fourth drive source 31, first mother column 32, second mother column 33, third mother column 34, fourth mother column 35, first daughter column 36, second daughter column 37, third daughter column 38, fourth daughter column 39, first mother column slide groove 40, and second mother column slide groove 41. Third mother column slide 42, fourth mother column slide 43, first son column slide 44, second son column slide 45, third son column slide 46, fourth son column slide 47, first bidirectional shaft 48, second bidirectional shaft 49, third bidirectional shaft 50, fourth bidirectional shaft 51, first power unit 52, second power unit 53, third power unit 54, fourth power unit 55, fifth power unit 56, sixth power unit 57, seventh power unit 58, eighth power unit 59, first scissor lift column 60, second scissor lift column 6 1. Third scissor lift post 62, fourth scissor lift post 63, first adjusting device 64, second adjusting device 65, third adjusting device 66, fourth adjusting device 67, fifth adjusting device 68, sixth adjusting device 69, first hollow slide rail 70, second hollow slide rail 71, third hollow slide rail 72, fourth hollow slide rail 73, first limiting post 74, second limiting post 75, first power source 76, second power source 77, third power source 78, fourth power source 79, fifth power source 80, sixth power source 81. Detailed Implementation

[0065] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0066] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0067] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", "middle", etc., which indicate the direction or positional relationship, are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0068] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] Please see Figure 1 As shown, this is a structural schematic diagram of a screen device based on angle and position adjustment according to an embodiment of the present invention. This embodiment includes a base and a screen mechanism, wherein...

[0070] The base includes a housing, a control keyboard, a mounting slot, and a lifting unit. The housing supports the screen mechanism, the control keyboard is located on the top surface of the housing and is used to control the screen mechanism, the mounting slot is located at the rear of the housing and is used to store the screen mechanism, the lifting unit is located inside the housing and is connected to the screen mechanism, the lifting unit is used to lift the screen mechanism, and the base supports the screen mechanism.

[0071] The screen mechanism includes a screen, a scissor unit, and a back plate. The screen is located on one side of the screen mechanism. One end of the scissor unit is connected to the screen. The scissor unit is used to position the screen at a corresponding horizontal position and tilt angle through corresponding scissor angles. The scissor unit is connected to one side of the back plate. The back plate is used to fix one end of the scissor unit and drive one end of the scissor unit to move in a preset direction. The back plate also includes several lifting plates, which are respectively located at both ends of the rear of the back plate. The lifting plates include a first lifting plate and a second lifting plate. Each lifting plate is connected to a lifting unit. The lifting plates are used to support and fix the screen mechanism and transmit the force of the lifting unit.

[0072] The control keyboard includes several control buttons and a control computer. The control buttons are located on one side of the top surface of the enclosure and are used to correspond to different control commands. The control computer is connected to the control buttons, the lifting unit, and the scissor lift unit. The control computer is used to control the corresponding units according to the different triggered control buttons. Each unit includes a lifting unit and a scissor lift unit.

[0073] The lifting unit includes a bearing structure and a worm gear trapezoidal screw assembly, wherein,

[0074] The load-bearing structure includes several load-bearing blocks and load-bearing rods. The load-bearing blocks are connected to one end of the lifting plate and the load-bearing rod, respectively. The load-bearing blocks include a first load-bearing block and a second load-bearing block. The load-bearing blocks transmit the force of the lifting rod in a preset direction and also constrain the lifting angle of the screen mechanism during lifting. The load-bearing rods connect the load-bearing blocks to a worm gear trapezoidal screw assembly. Each load-bearing rod has a first lifting ring and a second lifting ring, which mesh with the worm gear trapezoidal screw assembly. Each lifting ring causes the lifting rod to lift at a preset horizontal angle. The load-bearing rods ensure that the force generated by the worm gear trapezoidal screw assembly is evenly distributed to each load-bearing block.

[0075] The worm gear trapezoidal lead screw assembly includes a first trapezoidal lead screw, a second trapezoidal lead screw, a first worm gear module, a second worm gear module, a first power module, and a second power module. Each trapezoidal lead screw is disposed within a housing below a mounting slot. Each trapezoidal lead screw is connected to the top surface of the housing, the bottom surface of the housing, a load-bearing ring, and the corresponding worm gear module. Each trapezoidal lead screw transmits the torque of the worm gear module to its corresponding load-bearing ring, and causes the load-bearing ring to move perpendicularly to its corresponding trapezoidal lead screw by a preset distance and in a preset direction. In this motion, each of the worm gear modules is respectively located at the bottom of the housing below the mounting slot, and is respectively connected to each of the trapezoidal lead screws and each of the power modules. Each worm gear module is used to direct the power output by each of the power modules. Each of the power modules is located at the bottom of the housing and is connected to each of the worm gear modules through corresponding transmission shafts. A parallel shaft is provided between each of the power modules to keep the rotational speed of each power module consistent. Each of the power modules is used to output torque at a preset speed to each of the worm gear modules.

[0076] The top of the screen mechanism is equipped with a hidden handle, which contains a pressure sensor. The pressure sensor is used to detect the magnitude of the pulling force on the hidden handle when the screen mechanism is stored in the mounting slot and the electric auxiliary mode is activated. This allows the control computer to determine whether the lifting unit should raise the screen mechanism to the preset position based on the comparison between the value of the pulling force on the hidden handle and the preset pulling force value.

[0077] The screen has a first sliding groove on the back side. The first sliding groove includes a first sliding point, a second sliding point, a third sliding point, and a fourth sliding point. The first sliding point is located on the upper left side of the screen, the second sliding point is located on the lower left side of the screen, the third sliding point is located on the upper right side of the screen, and the fourth sliding point is located on the lower right side of the screen. The first sliding groove is used to allow the universal rotation shaft connecting the scissor unit and the screen to make corresponding displacements within a preset sliding range of the first sliding groove. The universal rotation shaft includes a first universal rotation shaft, a second universal rotation shaft, a third universal rotation shaft, and a fourth universal rotation shaft.

[0078] The backplate has a second sliding groove on its front side, which includes a first sliding area and a second sliding area. The first and second sliding areas are triangular in shape and symmetrically arranged on the front side of the backplate. The second sliding groove allows the end of the scissor lift unit connected to the backplate to move within a preset area. An adjustment mechanism is provided inside the backplate, connected to the end of the scissor lift unit connected to the backplate. The adjustment mechanism includes an adjustment disc, a drive assembly, and an adjustment column.

[0079] The adjustment disc includes a first adjustment disc, a second adjustment disc, a third adjustment disc, and a fourth adjustment disc. All adjustment discs are coaxially arranged at the center of the back plate, and all adjustment discs have the same diameter. Drive units are respectively located above and below the adjustment discs.

[0080] The drive assembly includes a first drive source, a second drive source, a third drive source, and a fourth drive source. The first drive source is connected to the first adjusting disc, the second drive source is connected to the second adjusting disc, the third drive source is connected to the third adjusting disc, and the fourth drive source is connected to the fourth adjusting disc. The drive assembly is used to rotate the corresponding adjusting discs in a preset direction.

[0081] The adjustment column includes a first adjustment column, a second adjustment column, a third adjustment column, and a fourth adjustment column. The first adjustment column is connected to the first adjustment plate, the second adjustment column is connected to the second adjustment plate, the third adjustment column is connected to the third adjustment plate, and the fourth adjustment column is connected to the fourth adjustment plate. The adjustment column is used to connect the scissor lift unit and provide support at a preset position.

[0082] The first regulating column includes a first main column, a first sub-column, and a first power unit; the second regulating column includes a second main column, a second sub-column, and a second power unit; the third regulating column includes a third main column, a third sub-column, and a third power unit; and the fourth regulating column includes a fourth main column, a fourth sub-column, and a fourth power unit.

[0083] One end of each of the mother columns is connected to a corresponding adjusting disc, and the other end of each of the mother columns is connected to a corresponding daughter column. Each mother column is provided with a corresponding mother column sliding groove, including a first mother column sliding groove, a second mother column sliding groove, a third mother column sliding groove, and a fourth mother column sliding groove. Each mother column sliding groove is used to allow the corresponding daughter column to move a predetermined length along a predetermined direction of the ...

[0084] Each of the sub-columns is provided with a corresponding sub-column groove, including a first sub-column groove, a second sub-column groove, a third sub-column groove, and a fourth sub-column groove. Each sub-column groove also contains a corresponding bidirectional shaft, including a first bidirectional shaft, a second bidirectional shaft, a third bidirectional shaft, and a fourth bidirectional shaft. Each sub-column groove constrains the corresponding bidirectional shaft when it moves along a preset direction. Each bidirectional shaft supports one end of its corresponding connected scissor lift unit. Each bidirectional shaft can move within a preset range of the second groove.

[0085] The power unit is connected to each of the corresponding sub-columns. The power unit includes a first power unit, a second power unit, a third power unit, and a fourth power unit. The first power unit is located above the first sub-column, the second power unit is located below the second sub-column, the third power unit is located above the third sub-column, and the fourth power unit is located below the fourth sub-column.

[0086] The first power unit includes a first power device and a second power device. The first power device drives the first sub-column to move a preset length along the preset direction of the first mother column slide groove, thereby increasing the farthest distance between the first bidirectional shaft and the adjustment disk, thus increasing the relative distance range of one end of the scissor unit, and consequently increasing the adjustable angle and adjustable distance of the screen. The second power device drives the first bidirectional shaft to move a preset length along the first sub-column slide groove, thereby increasing the range of motion of the bidirectional shaft, thus increasing the relative distance range of one end of the scissor unit, and consequently increasing the adjustable angle and adjustable distance of the screen.

[0087] The second power unit includes a third power device and a fourth power device. The third power device drives the second sub-column to move a preset length along the preset direction of the second mother column slide groove, thereby increasing the farthest distance between the second bidirectional shaft and the adjustment disk, thus increasing the relative distance range of one end of the scissor unit, and consequently increasing the adjustable angle and adjustable distance of the screen. The fourth power device drives the second bidirectional shaft to move a preset length along the second sub-column slide groove, thereby increasing the range of motion of the bidirectional shaft, thus increasing the relative distance range of one end of the scissor unit, and consequently increasing the adjustable angle and adjustable distance of the screen.

[0088] The third power unit includes a fifth power device and a sixth power device. The fifth power device drives the third sub-column to move a preset length along the preset direction of the third mother column slide groove, thereby increasing the farthest distance between the third bidirectional shaft and the adjustment disk, thus increasing the relative distance range of one end of the scissor unit, and consequently increasing the adjustable angle and adjustable distance of the screen. The sixth power device drives the third bidirectional shaft to move a preset length along the third sub-column slide groove, thereby increasing the range of motion of the bidirectional shaft, thus increasing the relative distance range of one end of the scissor unit, and consequently increasing the adjustable angle and adjustable distance of the screen.

[0089] The fourth power unit includes a seventh power device and an eighth power device. The seventh power device is used to drive the fourth sub-column to move a preset length along the preset direction of the fourth mother column slide groove, thereby increasing the farthest distance between the fourth bidirectional shaft and the adjustment disk, thereby increasing the relative distance range of one end of the scissor unit, and thus increasing the adjustable angle and adjustable distance of the screen. The eighth power device is used to drive the fourth bidirectional shaft to move a preset length along the fourth sub-column slide groove, thereby increasing the range of motion of the bidirectional shaft, thereby increasing the relative distance range of one end of the scissor unit, and thus increasing the adjustable angle and adjustable distance of the screen.

[0090] The scissor lift unit includes a first transmission group, a second transmission group, a third transmission group, and a fourth transmission group. The first transmission group connects to a first omnidirectional shaft and a first bidirectional shaft; the second transmission group connects to a second omnidirectional shaft and a second bidirectional shaft; the third transmission group connects to a third omnidirectional shaft and a third bidirectional shaft; and the fourth transmission group connects to a fourth omnidirectional shaft and a fourth bidirectional shaft. Each transmission group is used to adjust the relative position and tilt angle of the screen relative to the back panel.

[0091] The first transmission assembly includes a first scissor lift column, a second scissor lift column, and a first adjustment device assembly, wherein the first adjustment device assembly includes a first adjustment device, a second adjustment device, and a third adjustment device.

[0092] One end of the first scissor lift column is connected to the first bidirectional shaft via a first adjusting device. The other end of the first scissor lift column is connected to one end of the second scissor lift column via a second adjusting device. The other end of the second scissor lift column is connected to the first universal joint shaft via a third adjusting device. The first adjusting device is used to adjust the relative angle between the first scissor lift column and the first bidirectional shaft. The second adjusting device is used to adjust the relative angle between the first scissor lift column and the second scissor lift column. The third adjusting device is used to adjust the relative angle between the second scissor lift column and the first universal joint shaft.

[0093] The second transmission assembly includes a third scissor lift, a fourth scissor lift, and a second adjustment device assembly. The second adjustment device assembly includes a fourth adjustment device, a fifth adjustment device, and a sixth adjustment device.

[0094] One end of the third scissor lift column is connected to the second bidirectional shaft via a fourth adjusting device. The other end of the third scissor lift column is connected to one end of the fourth scissor lift column via a fifth adjusting device. The other end of the fourth scissor lift column is connected to the second universal joint shaft via a sixth adjusting device. The fourth adjusting device is used to adjust the relative angle between the third scissor lift column and the second bidirectional shaft. The fifth adjusting device is used to adjust the relative angle between the third scissor lift column and the fourth scissor lift column. The sixth adjusting device is used to adjust the relative angle between the fourth scissor lift column and the second universal joint shaft.

[0095] The third transmission group includes the fifth scissor lift column, the sixth scissor lift column, and the third adjustment device group, wherein the third adjustment device group includes the seventh adjustment device, the eighth adjustment device, and the ninth adjustment device.

[0096] One end of the fifth scissor lift column is connected to the third bidirectional shaft via the seventh adjustment device. The other end of the fifth scissor lift column is connected to one end of the sixth scissor lift column via the eighth adjustment device. The other end of the sixth scissor lift column is connected to the third universal joint shaft via the ninth adjustment device. The seventh adjustment device is used to adjust the relative angle between the fifth scissor lift column and the third bidirectional shaft. The eighth adjustment device is used to adjust the relative angle between the fifth scissor lift column and the sixth scissor lift column. The ninth adjustment device is used to adjust the relative angle between the sixth scissor lift column and the third universal joint shaft.

[0097] The fourth transmission group includes the seventh scissor lift column, the eighth scissor lift column, and the fourth adjustment device group, wherein the fourth adjustment device group includes the tenth adjustment device, the eleventh adjustment device, and the twelfth adjustment device.

[0098] One end of the seventh scissor lift column is connected to the fourth bidirectional shaft via the tenth adjustment device. The other end of the seventh scissor lift column is connected to one end of the eighth scissor lift column via the eleventh adjustment device. The other end of the eighth scissor lift column is connected to the fourth omnidirectional shaft via the twelfth adjustment device. The tenth adjustment device is used to adjust the relative angle between the seventh scissor lift column and the fourth bidirectional shaft. The eleventh adjustment device is used to adjust the relative angle between the seventh scissor lift column and the eighth scissor lift column. The twelfth adjustment device is used to adjust the relative angle between the eighth scissor lift column and the fourth omnidirectional shaft.

[0099] Each of the aforementioned scissor lift posts is also provided with a hollowed-out slide rail, including a first hollowed-out slide rail for the first scissor lift post, a second hollowed-out slide rail for the second scissor lift post, a third hollowed-out slide rail for the third scissor lift post, a fourth hollowed-out slide rail for the fourth scissor lift post, a fifth hollowed-out slide rail for the fifth scissor lift post, a sixth hollowed-out slide rail for the sixth scissor lift post, a seventh hollowed-out slide rail for the seventh scissor lift post, and an eighth hollowed-out slide rail for the eighth scissor lift post. Each of the aforementioned hollowed-out slide rails is provided with a plurality of limiting posts, including a first limiting post, a second limiting post, a third limiting post, and a fourth limiting post. The first limiting post is disposed within the first and third hollowed-out slide rails and is used to control the relative movement direction and relative movement distance of the first and third scissor lift posts. The system includes a second limiting post positioned within the second and fourth hollow slide rails to constrain the relative movement direction and distance of the second and fourth scissor columns. A third limiting post is positioned within the fifth and seventh hollow slide rails to constrain the relative movement direction and distance of the fifth and seventh scissor columns. A fourth limiting post is positioned within the sixth and eighth hollow slide rails to constrain the relative movement direction and distance of the sixth and eighth scissor columns. Each limiting post can slide within its corresponding hollow slide rail and allows each scissor column to rotate within a preset range in the event of an adjustment malfunction.

[0100] Each of the aforementioned lifting plates is connected to its corresponding load-bearing block and is used to transmit the force of the load-bearing block in a preset direction to the back plate. Each of the aforementioned lifting plates also includes a fifth adjustment device group, which includes a thirteenth adjustment device and a fourteenth adjustment device. The thirteenth adjustment device is located at the top of the first lifting plate and connected to the back plate, and the fourteenth adjustment device is located at the top of the second lifting plate and connected to the back plate. The fifth adjustment device group is used to adjust the angle of the back plate relative to each of the aforementioned lifting plates in electric mode, thereby controlling the horizontal angle of the screen. In electric mode, the control computer controls the fifth adjustment device group to adjust the screen angle to be perpendicular to each of the aforementioned lifting plates according to the instructions input on the control keyboard. When the screen is perpendicular to the lifting plate, the control computer controls the lifting unit to lower the lifting plate into the housing.

[0101] Each of the aforementioned adjustment devices is further provided with a corresponding power source, including a first power source, a second power source, a third power source, a fourth power source, a fifth power source, a sixth power source, a seventh power source, an eighth power source, a ninth power source, a tenth power source, an eleventh power source, a twelfth power source, a thirteenth power source, and a fourteenth power source. The first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, and twelfth power sources are respectively located on one side of their corresponding adjustment device. The thirteenth power source is located within the first lifting plate, and the fourteenth power source is located within the second lifting plate.

[0102] The back panel is also equipped with cushioning pads at the rear. The cushioning pads include a first cushioning pad and a second cushioning pad. The first cushioning pad is disposed in the space between the first lifting plate and the back panel, and the second cushioning pad is disposed in the space between the second lifting plate and the back panel. The cushioning pads are used to support and protect the back panel when it is placed horizontally on the box.

[0103] The control computer has an electric-assisted mode and an electric mode. In electric-assisted mode, the control computer stops receiving key input commands from the keyboard and, based on the force magnitude and direction detected by the pressure sensors of each adjustment device group, controls the output of a torque of a preset multiple to each adjustment device group. In electric mode, the control computer stops receiving force magnitude and direction detected by the pressure sensors of each adjustment device group and controls the corresponding scissor columns of each adjustment device group according to the key input commands from the control keyboard.

[0104] In this embodiment, the power source type of each power module, drive group, power group and adjustment device group can be a DC motor, an AC motor, or a hydraulic or pneumatic motor, as long as it can meet the preset power output requirements of the power device in this embodiment, which will not be elaborated further.

[0105] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0106] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A screen device based on angle and position adjustment, characterized by, The base comprises a box, a control keyboard, a setting slot and a lifting unit, wherein the box is used to support the screen mechanism, the control keyboard is arranged on the top surface of the box and used to control the screen mechanism, the setting slot is arranged on the rear part of the box and used to accommodate the screen mechanism, and the lifting unit is arranged in the box and connected with the screen mechanism, and is used to lift the screen mechanism, so that the base is used to carry the screen mechanism. The screen mechanism comprises a screen, a scissor unit and a back plate, wherein the screen is arranged on one side of the screen mechanism, one end of the scissor unit is connected with the screen, the scissor unit is used to make the screen be in a corresponding horizontal position and an inclined angle through a corresponding scissor angle, the scissor unit is connected with one side of the back plate, the back plate is used to fix one end of the scissor unit and drive one end of the scissor unit to displace in a preset direction, the back plate further comprises a plurality of lifting plates, the lifting plates are respectively arranged at both ends of the rear part of the back plate, the lifting plates comprise a first lifting plate and a second lifting plate, each of the lifting plates is connected with the lifting unit, and the lifting plates are used to carry and fix the screen mechanism and transmit the action force of the lifting unit. The control keyboard comprises a plurality of control buttons and a control computer, the control buttons are arranged on one side of the top surface of the box, the control buttons are used to correspond to different control instructions, the control computer is connected with the control buttons, the lifting unit and the scissor unit, and is used to correspondingly control each unit according to different triggered control buttons, wherein each unit comprises the lifting unit and the scissor unit. The lifting unit comprises a bearing group and a worm and gear trapezoidal screw group, wherein 2. The screen device based on angle and position adjustment according to claim 1, characterized in that, The bearing group comprises a plurality of bearing blocks and a bearing rod, the bearing blocks are respectively connected with the lifting plates and one end of the bearing rod, the bearing blocks comprise a first bearing block and a second bearing block, the bearing blocks are used to transmit the action force of the lifting rod in a preset direction, and are further used to constrain the lifting angle of the screen mechanism when the screen mechanism is lifted, the bearing rod is connected with the bearing blocks and the worm and gear trapezoidal screw group, the bearing rod is provided with a first lifting ring and a second lifting ring, each of the lifting rings is engaged with the worm and gear trapezoidal screw group, each of the lifting rings is used to make the lifting rod lift at a preset horizontal angle, and the bearing rod is used to uniformly distribute the action force generated by the worm and gear trapezoidal screw group to each of the bearing blocks, ​ The worm gear and worm screw trapezoidal screw set comprises a first trapezoidal screw, a second trapezoidal screw, a first worm gear and worm module, a second worm gear and worm module, a first power module and a second power module, each of the trapezoidal screws is arranged in the box below the installation groove, each of the trapezoidal screws is connected with the top surface, the bottom surface, the load-bearing ring in the box and each of the worm gear and worm modules corresponding thereto respectively, each of the trapezoidal screws is used to transmit the torque of each of the worm gear and worm modules to the corresponding load-bearing ring, and make each of the load-bearing rings move vertically along the corresponding trapezoidal screw by a preset distance and in a preset direction, each of the worm gear and worm modules is arranged in the bottom of the box below the installation groove and connected with each of the trapezoidal screws and each of the power modules respectively, each of the worm gear and worm modules is used to change the direction of the power output by each of the power modules, each of the power modules is arranged in the bottom of the box and connected with each of the worm gear and worm modules through the corresponding transmission shaft respectively, a parallel shaft is arranged between each of the power modules, the parallel shaft is used to keep the rotating speed of each of the power modules consistent, and each of the power modules is used to output a preset rotating speed of the torque to each of the worm gear and worm modules.

3. The screen device based on angle and position adjustment according to claim 2, characterized in that, The screen mechanism top is provided with a hidden handle, the hidden handle is provided with a pressure sensor, the pressure sensor is used to detect the pulling force of the hidden handle when the screen mechanism is stored in the installation groove and the electric assist mode is started, so that the control computer can judge whether the lifting unit lifts the screen mechanism to the preset position according to the comparison result of the pulling force value of the hidden handle and the preset pulling force value.

4. The screen device based on angle and position adjustment according to claim 3, characterized in that, The screen back is provided with a first sliding groove, the first sliding groove comprises a first sliding point, a second sliding point, a third sliding point and a fourth sliding point, the first sliding point is arranged on the upper left side of the screen back, the second sliding point is arranged on the lower left side of the screen back, the third sliding point is arranged on the upper right side of the screen back, and the fourth sliding point is arranged on the lower right side of the screen back, the first sliding groove is used to enable the universal rotating shaft connecting the scissors unit and the screen to displace correspondingly within the preset sliding range of the first sliding groove, wherein the universal rotating shaft comprises a first universal rotating shaft, a second universal rotating shaft, a third universal rotating shaft and a fourth universal rotating shaft.

5. The screen device based on angle and position adjustment according to claim 4, characterized in that, The back plate front is provided with a second sliding groove, the second sliding groove comprises a first sliding area and a second sliding area, the first sliding area and the second sliding area are triangular and symmetrically arranged on the back plate front, the second sliding groove is used to enable one end of the scissors unit connected to the back plate to displace within a preset area, an adjusting mechanism is arranged in the back plate, the adjusting mechanism is connected to one end of the scissors unit connected to the back plate, the adjusting mechanism comprises an adjusting disc, a driving group and an adjusting column, wherein the adjusting disc comprises a first adjusting disc, a second adjusting disc, a third adjusting disc and a fourth adjusting disc, each of the adjusting discs is coaxially arranged at the center of the back plate, and the diameters of each of the adjusting discs are equal, the driving group is arranged above and below the adjusting disc respectively, The driving group comprises a first driving source, a second driving source, a third driving source and a fourth driving source, wherein the first driving source is connected with the first adjusting disc, the second driving source is connected with the second adjusting disc, the third driving source is connected with the third adjusting disc, and the fourth driving source is connected with the fourth adjusting disc, and the driving group is used to rotate the corresponding adjusting disc in a preset direction, The adjusting column comprises a first adjusting column, a second adjusting column, a third adjusting column and a fourth adjusting column, wherein the first adjusting column is connected with the first adjusting disc, the second adjusting column is connected with the second adjusting disc, the third adjusting column is connected with the third adjusting disc, and the fourth adjusting column is connected with the fourth adjusting disc, and the adjusting column is used to connect the scissor unit and provide support at a preset position.

6. The angle and position adjustment based screen device of claim 5, wherein, The first adjusting column comprises a first mother column, a first child column and a first power group, the second adjusting column comprises a second mother column, a second child column and a second power group, the third adjusting column comprises a third mother column, a third child column and a third power group, and the fourth adjusting column comprises a fourth mother column, a fourth child column and a fourth power group, wherein One end of each of the mother columns is connected with the corresponding adjusting disc, the other end of each of the mother columns is connected with the corresponding child column, each of the mother columns is provided with the corresponding mother column sliding groove, the mother column sliding groove comprises a first mother column sliding groove, a second mother column sliding groove, a third mother column sliding groove and a fourth mother column sliding groove, and each of the mother column sliding grooves is used to make the corresponding child column displace by a preset length in a preset direction of each of the mother column sliding grooves, Each of the child columns is provided with the corresponding child column sliding groove, the child column sliding groove comprises a first child column sliding groove, a second child column sliding groove, a third child column sliding groove and a fourth child column sliding groove, each of the child column sliding grooves is further provided with the corresponding double-direction shaft, the double-direction shaft comprises a first double-direction shaft, a second double-direction shaft, a third double-direction shaft and a fourth double-direction shaft, each of the child column sliding grooves is used to constrain the corresponding double-direction shaft when the double-direction shaft displaces in a preset direction, each of the double-direction shafts is used to support one end of the connected scissor unit corresponding to the double-direction shaft, and each of the double-direction shafts can displace correspondingly within a preset range of the second sliding groove, The power group is connected with the corresponding child column, and the power group comprises a first power group, a second power group, a third power group and a fourth power group, wherein the first power group is arranged above the first child column, the second power group is arranged below the second child column, the third power group is arranged above the third child column, and the fourth power group is arranged below the fourth child column.

7. The angle and position adjustment based screen device of claim 6, wherein, The first power group comprises a first power device and a second power device, wherein the first power device is used to drive the first child column to displace by a preset length in a preset direction of the first mother column sliding groove, thereby increasing the farthest distance between the first double-direction shaft and the adjusting disc, thereby increasing the relative distance range of one end of the scissor unit, thereby increasing the adjustable angle and the adjustable distance of the screen, and the second power device is used to drive the first double-direction shaft to displace by a preset length along the first child column sliding groove, The second power set comprises a third power device and a fourth power device, wherein the third power device is used to drive the second sub-column to displace along the preset direction of the second parent column slide at a preset length, thereby increasing the farthest distance between the second bidirectional shaft and the adjusting disc, thereby increasing the relative distance range of one end of the scissor unit, thereby increasing the adjustable angle and adjustable distance of the screen, and the fourth power device is used to drive the second bidirectional shaft to displace along the preset direction of the second sub-column slide at a preset length, The third power set comprises a fifth power device and a sixth power device, wherein the fifth power device is used to drive the third sub-column to displace along the preset direction of the third parent column slide at a preset length, thereby increasing the farthest distance between the third bidirectional shaft and the adjusting disc, thereby increasing the relative distance range of one end of the scissor unit, thereby increasing the adjustable angle and adjustable distance of the screen, and the sixth power device is used to drive the third bidirectional shaft to displace along the preset direction of the third sub-column slide at a preset length, The fourth power set comprises a seventh power device and an eighth power device, wherein the seventh power device is used to drive the fourth sub-column to displace along the preset direction of the fourth parent column slide at a preset length, thereby increasing the farthest distance between the fourth bidirectional shaft and the adjusting disc, thereby increasing the relative distance range of one end of the scissor unit, thereby increasing the adjustable angle and adjustable distance of the screen, and the eighth power device is used to drive the fourth bidirectional shaft to displace along the preset direction of the fourth sub-column slide at a preset length.

8. The angle and position adjustment based screen device of claim 7, wherein, The scissor unit comprises a first transmission set, a second transmission set, a third transmission set and a fourth transmission set, wherein the first transmission set is connected with the first bidirectional shaft and the first universal rotating shaft respectively, the second transmission set is connected with the second bidirectional shaft and the second universal rotating shaft respectively, the third transmission set is connected with the third bidirectional shaft and the third universal rotating shaft respectively, and the fourth transmission set is connected with the fourth bidirectional shaft and the fourth universal rotating shaft respectively, and each transmission set is used to adjust the relative position and relative inclination angle of the screen relative to the back plate, The first transmission set comprises a first scissor column, a second scissor column and a first adjusting device set, wherein the first adjusting device set comprises a first adjusting device, a second adjusting device and a third adjusting device, One end of the first scissor column is connected with the first bidirectional shaft through the first adjusting device, the other end of the first scissor column is connected with one end of the second scissor column through the second adjusting device, the other end of the second scissor column is connected with the first universal rotating shaft through the third adjusting device, the first adjusting device is used to adjust the relative angle between the first scissor column and the first bidirectional shaft, the second adjusting device is used to adjust the relative angle between the first scissor column and the second scissor column, and the third adjusting device is used to adjust the relative angle between the second scissor column and the first universal rotating shaft; The second transmission set comprises a third scissor column, a fourth scissor column and a second adjusting device set, wherein the second adjusting device set comprises a fourth adjusting device, a fifth adjusting device and a sixth adjusting device, One end of the third scissor column is connected with the second bidirectional shaft through a fourth adjusting device, the other end of the third scissor column is connected with one end of the fourth scissor column through a fifth adjusting device, the other end of the fourth scissor column is connected with the second universal shaft through a sixth adjusting device, the fourth adjusting device is used for adjusting the relative angle of the third scissor column and the second bidirectional shaft, the fifth adjusting device is used for adjusting the relative angle of the third scissor column and the fourth scissor column, and the sixth adjusting device is used for adjusting the relative angle of the fourth scissor column and the second universal shaft; The third transmission group comprises a fifth scissor column, a sixth scissor column and a third adjusting device group, wherein the third adjusting device group comprises a seventh adjusting device, an eighth adjusting device and a ninth adjusting device, One end of the fifth scissor column is connected with the third bidirectional shaft through the seventh adjusting device, the other end of the fifth scissor column is connected with one end of the sixth scissor column through the eighth adjusting device, the other end of the sixth scissor column is connected with the third universal shaft through the ninth adjusting device, the seventh adjusting device is used for adjusting the relative angle of the fifth scissor column and the third bidirectional shaft, the eighth adjusting device is used for adjusting the relative angle of the fifth scissor column and the sixth scissor column, and the ninth adjusting device is used for adjusting the relative angle of the sixth scissor column and the third universal shaft; The fourth transmission group comprises a seventh scissor column, an eighth scissor column and a fourth adjusting device group, wherein the fourth adjusting device group comprises a tenth adjusting device, an eleventh adjusting device and a twelfth adjusting device, One end of the seventh scissor column is connected with the fourth bidirectional shaft through the tenth adjusting device, the other end of the seventh scissor column is connected with one end of the eighth scissor column through the eleventh adjusting device, the other end of the eighth scissor column is connected with the fourth universal shaft through the twelfth adjusting device, the tenth adjusting device is used for adjusting the relative angle of the seventh scissor column and the fourth bidirectional shaft, the eleventh adjusting device is used for adjusting the relative angle of the seventh scissor column and the eighth scissor column, and the twelfth adjusting device is used for adjusting the relative angle of the eighth scissor column and the fourth universal shaft.

9. The angle and position adjustment based screen device of claim 8, wherein, Each of the scissors columns is further provided with a hollow slide, and the hollow slides include a first hollow slide of the first scissors column, a second hollow slide of the second scissors column, a third hollow slide of the third scissors column, a fourth hollow slide of the fourth scissors column, a fifth hollow slide of the fifth scissors column, a sixth hollow slide of the sixth scissors column, a seventh hollow slide of the seventh scissors column and an eighth hollow slide of the eighth scissors column, each of the hollow slides is provided with a plurality of limiting columns, and each of the limiting columns includes a first limiting column, a second limiting column, a third limiting column and a fourth limiting column, the first limiting column is arranged in the first hollow slide and the third hollow slide and is used to constrain the relative movement direction and distance of the first scissors column and the third scissors column, the second limiting column is arranged in the second hollow slide and the fourth hollow slide and is used to constrain the relative movement direction and distance of the second scissors column and the fourth scissors column, the third limiting column is arranged in the fifth hollow slide and the seventh hollow slide and is used to constrain the relative movement direction and distance of the fifth scissors column and the seventh scissors column, the fourth limiting column is arranged in the sixth hollow slide and the eighth hollow slide and is used to constrain the relative movement direction and distance of the sixth scissors column and the eighth scissors column, each of the limiting columns can slide in the corresponding hollow slide, and each of the adjusting device groups can make each of the scissors columns rotate within a preset range when an adjustment failure occurs.

10. The screen device based on angle and position adjustment according to claim 9, characterized in that, Each of the lifting plates is connected with the corresponding bearing block and is used to transmit the force of the bearing block in a preset direction to the back plate, and each of the lifting plates further includes a fifth adjusting device group, the fifth adjusting device group includes a thirteenth adjusting device and a fourteenth adjusting device, the thirteenth adjusting device is arranged at the top end of the first lifting plate and is connected with the back plate, the fourteenth adjusting device is arranged at the top end of the second lifting plate and is connected with the back plate, the fifth adjusting device group is used to adjust the angle of the back plate relative to each of the lifting plates in the electric mode and to control the horizontal angle of the screen, in the electric mode, the control computer controls the fifth adjusting device group to adjust the angle of the screen to be perpendicular to each of the lifting plates according to the instruction input by the control keyboard, when the screen is perpendicular to the lifting plate, the control computer controls the lifting unit to sink the lifting plate into the box, Each of the adjusting devices is further provided with a corresponding power source, and each of the power sources includes a first power source, a second power source, a third power source, a fourth power source, a fifth power source, a sixth power source, a seventh power source, an eighth power source, a ninth power source, a tenth power source, an eleventh power source, a twelfth power source, a thirteenth power source and a fourteenth power source, wherein the first power source, the second power source, the third power source, the fourth power source, the fifth power source, the sixth power source, the seventh power source, the eighth power source, the ninth power source, the tenth power source, the eleventh power source and the twelfth power source are arranged on one side of the corresponding adjusting device, the thirteenth power source is arranged in the first lifting plate, and the fourteenth power source is arranged in the second lifting plate, The back plate rear part is further provided with a buffer cushion respectively, the buffer cushion comprises a first buffer cushion and a second buffer cushion, the first buffer cushion is arranged in the interlayer of the first lifting plate and the back plate, the second buffer cushion is arranged in the interlayer of the second lifting plate and the back plate, and the buffer cushion is used for supporting and protecting the back plate when the back plate is horizontally placed on the box body, The control computer is provided with an electric assist mode and an electric mode, wherein, in the electric assist mode, the control computer stops controlling the keyboard input key instruction, and controls the torque output to each of the adjusting device groups according to the force and direction of each of the scissors columns corresponding to each of the adjusting device groups detected by the pressure sensor arranged in each of the adjusting device groups; in the electric mode, the control computer stops receiving the force and direction detected by the pressure sensor arranged in each of the adjusting device groups, and controls each of the scissors columns corresponding to each of the adjusting device groups according to the key instruction input by the control keyboard.

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