Transparent display screen for multimedia exhibition hall

Abstract

The invention provides a transparent display screen for a multimedia exhibition hall, and relates to the technical field of LED display screens, the transparent display screen comprises a base, an electric push rod is fixed on the base, a second fixing frame is fixed on the telescopic end of the electric push rod, a lifting box is fixed on the second fixing frame, the lifting box is rotatably connected with a long rod, and the lifting box is fixedly connected with a motor. A motor output shaft is fixedly connected with a long rod, a plurality of take-up rollers are fixed to the long rod, one ends of steel wire ropes are fixed to the take-up rollers, a connecting rod is fixed to the other ends of the steel wire ropes, a plurality of nuts are symmetrically connected to the connecting rod in a threaded mode, the nuts are rotationally connected with first connecting pieces, and the first connecting pieces are also rotationally connected with nuts. A first fixing frame is connected between the nuts in a threaded mode, and a transparent display screen is arranged in the first fixing frame. The electric push rod is arranged, the telescopic end of the electric push rod extends, the first fixing frame drives the transparent display screen to move upwards, people do not need to hang the transparent display screen at a high position manually, operation of people is easy and convenient, and time and labor are saved.

Description

Technical Field

[0001] The invention relates to the technical field of LED display screens, and in particular to a transparent display screen for a multimedia exhibition hall. Background Art

[0002] Transparent display screens can maintain partial transparency while displaying content, so that objects or scenes behind them can be seen. They have a wide range of uses. They can attract customers in commercial advertisements without blocking the view in the store, enhance display effects in multimedia exhibition halls, create unique stage effects as stage backgrounds, and be clear and integrated into the environment as outdoor billboards.

[0003] The patent with the patent publication number CN112097048A discloses a foldable and liftable transparent display screen, which includes several foldable boxes, each of which includes a box frame, a transparent screen and a mask. The box frame, the transparent screen and the mask are stacked, and connecting pieces are provided at the four corners of the box frame. Connecting piece shaft holes are provided on both sides of the box frame. Power and signal lines are provided at the center of the upper and lower ends of the transparent screen. The power and signal lines are connected to the patch connector. The front end of the transparent screen is evenly laid with a driver IC, and the rear end of the transparent screen is evenly laid with an LED lamp. The upper end of the foldable box is connected to a lifting component, and the lifting component includes a lifting beam, and a motor unit and a support plate are arranged inside the lifting beam. Suspension beams are provided on both sides of the support plate, and suspension point pulleys are provided at the upper and lower ends of the suspension point beam, and the suspension point pulleys are fixed to the lifting beam.

[0004] When in use, the above patent hangs the folding and lifting transparent display screen at a specified position, the motor unit inside the lifting beam operates, driving the bottom bracket box platform to descend, and the transparent screen box unfolds in sequence until all the transparent screens are unfolded, and image demonstration is performed. After the image demonstration, the folding and lifting transparent display screen is folded, the transparent screen connected to the bottom bracket box platform is tilted backward, the bottom bracket box platform rises, and the transparent screen box is folded in sequence until all the transparent screens are folded. When in use, the above patent requires manual use of lifting equipment to install the device at a high place, which lacks a certain degree of convenience. Therefore, a transparent display screen for multimedia exhibition halls is designed that can unfold the display screen without being installed at a high place. Summary of the invention

[0005] The present invention provides a transparent display screen for a multimedia exhibition hall, in order to overcome the disadvantage that the device needs to be installed at a high place manually using a hoisting device, which lacks certain convenience.

[0006] The technical solution of the present invention is: a transparent display screen for a multimedia exhibition hall, comprising a base, the top surface of the base is inclined, an electric push rod is fixed on the base, a second fixed frame is fixed on the telescopic end of the electric push rod, a lifting box is fixed on the side of the second fixed frame away from the electric push rod, the lifting box is rotatably connected with a long rod, a motor is fixed inside the lifting box, the output shaft of the motor is fixedly connected to the long rod, a plurality of take-up rollers are fixed on the long rod, one end of a steel wire rope is fixed on the take-up roller, the other end of the steel wire rope passes through the lifting box and is jointly fixed with a connecting rod, a plurality of nuts are symmetrically threadedly connected to the connecting rod, a first connecting piece is rotatably connected to the nut, a nut is also rotatably connected to the side of the first connecting piece away from the connecting rod, a first fixed frame is threadedly connected between the nuts, a transparent display screen is arranged in the first fixed frame, the transparent display screen is electrically connected to an external control system through a control module, and a blocking component capable of blocking the first fixed frame is connected to the base.

[0007] Furthermore, the blocking assembly includes a plurality of fixing members, which are symmetrically fixed on one side of the base close to the electric push rod, and a rotating shaft is rotatably connected between the fixing members, and a supporting member is fixed on the rotating shaft.

[0008] Furthermore, it also includes a folding mechanism that can fold the multiple first fixing frames when multiple first fixing frames and transparent display screens are provided. The folding mechanism includes multiple slides, and every two slides are symmetrically fixed on the same first fixing frame. A nut is symmetrically threadedly connected to one side of the first fixing frame away from the base, and a third connecting member is rotatably connected to the nut. The third connecting member is slidably connected to the corresponding slide on the next first fixing frame.

[0009] Furthermore, it also includes a plurality of second connecting members, which are slidably connected to a slideway close to the electric push rod. A plurality of slide grooves are symmetrically arranged on the base, and the second connecting members are slidably connected to the corresponding slide grooves.

[0010] Furthermore, it also includes a stabilizing mechanism that can stabilize the first fixing frame close to the base to prevent the first fixing frame from shaking when the multiple first fixing frames are unfolded with each other, and the stabilizing mechanism includes a first transmission rod, the first transmission rod is rotatably connected to the base, and a plurality of second gears are symmetrically fixed at both ends of the first transmission rod, and a limiting member is slidably connected to one side of the base close to the second gear, the limiting member is meshed with the corresponding second gear, and the limiting member is squeezed and matched with the first fixing frame close to the base, and a rotating component that allows the first transmission rod to rotate is connected to the base.

[0011] Furthermore, the rotating assembly includes a rotating rod, which is rotatably connected to a side of the base away from the first transmission rod, and a second belt is wound around the first transmission rod and the rotating rod through a transmission wheel, and one of the fixed parts is rotatably connected to an axis, and a first belt is wound around the rotating rod and the axis through a transmission wheel.

[0012] Furthermore, it also includes a plurality of first gears, one of which is fixedly connected to the rotating shaft on the fixing member, a first gear is also fixed on the shaft of the fixing member, and the first gears are meshed with each other.

[0013] Furthermore, it also includes a fixing mechanism that can prevent the transparent display screen from moving and tipping over when the transparent display screen is in use. The fixing mechanism includes a plurality of moving parts, which are symmetrically slidably connected to the base. A suction cup is fixed to the bottom of the moving part, and a rack is fixed to the side of the moving part away from the suction cup. A second transmission rod is fixed to one of the first gears, and the second transmission rod is rotatably connected to the base. A third transmission rod is rotatably connected to the fixing part away from the second transmission rod, and the third transmission rod is rotatably connected to the base. A third gear is fixed to the side of the second transmission rod close to the moving part, and a third gear is also fixed to the side of the third transmission rod close to the moving part. The third gear is meshed with the corresponding rack.

[0014] Furthermore, it also includes a plurality of fourth gears, one of which is fixed on the third transmission rod, and another fourth gear is fixedly connected to the rotating shaft of the fixing member, and the fourth gears are meshed with each other.

[0015] Furthermore, a plurality of wheels are arranged at the bottom of the base.

[0016] The beneficial effects are: 1. The present invention sets an electric push rod, and the telescopic end of the electric push rod extends upward, so that the first fixed frame drives the transparent display screen to move upward, so that people no longer need to manually hang the transparent display screen at a high place, which simplifies people's operation and saves time and effort. By setting a third connecting member, the third connecting member connects the upper slide with the next first fixed frame, so that it is convenient for people to increase or decrease the number of transparent display screens, so that the device can adapt to more different scenes.

[0017] 2. The present invention sets a limiting member. When people rotate the supporting member counterclockwise, the first transmission rod inside the base rotates clockwise through transmission. The first transmission rod drives the second gears on the left and right sides to rotate clockwise, so that the left and right limiting members move upward. The limiting members extend from the inside of the base and block the lowest first fixing frame, thereby preventing the transparent display screen from sliding forward when in use because there is no obstruction.

[0018] 3. The present invention provides a suction cup that can suck the bottom surface, so that the device can be fixed when the transparent display screen is in use, thereby preventing the transparent display screen from moving or even tipping over during use, making it easier for people to use the transparent display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a three-dimensional structural schematic diagram of components such as the electric push rod, lifting box and wire rope of the present invention.

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the connecting rod, the first connecting member, the nut and other components of the present invention.

[0022] Figure 4 It is a sectional view of the three-dimensional structure of the lifting box, motor, take-up roller and other components of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the folding mechanism of the present invention.

[0024] Figure 6 It is a sectional view of the three-dimensional structure of the slideway, the second connecting member, the nut and other components of the present invention.

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the second fixing frame, the slideway, the third connecting member and other components of the present invention.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the first fixing frame, the slideway, the transparent display screen and other components of the present invention.

[0027] Fig. 9 It is a three-dimensional structural diagram of the new stabilizing mechanism of the present utility model.

[0028] Fig.10 It is a schematic diagram of the three-dimensional structure of the limiting member, transparent display screen, supporting member and other components of the present invention.

[0029] Fig.11 It is a schematic diagram of the three-dimensional structure of the limiting member, the first gear, the first belt and other components of the present invention.

[0030] Fig.12 It is a sectional view of the three-dimensional structure of the first transmission rod, the second gear, the second belt and other components of the present invention.

[0031] Fig.13 It is a schematic diagram of the three-dimensional structure of the fixing mechanism of the present invention.

[0032] Fig.14 It is a schematic diagram of the three-dimensional structure of the moving part, suction cup, base and other components of the present invention.

[0033] Fig.15 It is a schematic diagram of the three-dimensional structure of the moving part, the second transmission rod, the third gear and other components of the present invention.

[0034] Fig.16 For the present invention Fig.15 Enlarged view of the three-dimensional structure at point A.

[0035] In the accompanying drawings: 1-base, 11-transparent display screen, 12-first fixed frame, 13-electric push rod, 14-second fixed frame, 15-lifting box, 16-wire rope, 17-connecting rod, 18-first connecting member, 19-nut, 110-fixing member, 111-supporting member, 112-motor, 113-receiving roller, 2-slide, 21-second connecting member, 22-third connecting member, 3-limiting member, 31-first gear, 32-first belt, 321-rotating rod, 33-first transmission rod, 34-second gear, 35-second belt, 4-moving member, 41-suction cup, 42-third gear, 43-second transmission rod, 44-fourth gear, 45-third transmission rod, 46-rack. DETAILED DESCRIPTION

[0036] Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0037] Example 1: A transparent display screen for a multimedia exhibition hall, see Figure 1-Figure 4 , including a base 1, the top surface of the base 1 is inclined, four wheels are arranged at the bottom of the base 1, an electric push rod 13 is fixed to the upper side of the front of the base 1, a second fixing frame 14 is fixed to the upper side of the telescopic end of the electric push rod 13, a lifting box 15 is fixed to the rear side of the second fixing frame 14, a long rod is rotatably connected inside the lifting box 15, a motor 112 is fixedly connected to the left side of the lifting box 15, the output shaft of the motor 112 is fixedly connected to the long rod, five take-up rollers 113 are fixed on the long rod, one end of a steel wire rope 16 is fixed to the take-up roller 113, and the other end of the steel wire rope 16 is passed through A lifting box 15 is provided and fixed with a connecting rod 17, nuts 19 are threadedly connected to the left and right sides of the connecting rod 17, a first connecting member 18 is rotatably connected to the pair of nuts 19, the first connecting member 18 is rotatably connected to the side away from the connecting rod 17 by another pair of nuts 19, a first fixing frame 12 is threadedly connected between the other pair of nuts 19, a transparent display screen 11 is arranged in the first fixing frame 12, the transparent display screen 11 is electrically connected to the external control system through a control module, and a blocking component capable of blocking the first fixing frame 12 is connected to the base 1.

[0038] See also Figure 2 The blocking assembly includes two fixing members 110, and the fixing members 110 are fixed to the upper front side of the base 1. A rotating shaft is rotatably connected between the fixing members 110, and a supporting member 111 is fixed on the rotating shaft.

[0039] See also Figure 5-Figure 8, and also includes a folding mechanism that can fold the multiple first fixing frames 12 when multiple first fixing frames 12 and transparent display screens 11 are provided. The folding mechanism includes six slides 2, and every two slides 2 are symmetrically fixed on the left and right sides of the front side of the same first fixing frame 12. The left and right sides of the upper part of the first fixing frame 12 are both threadedly connected with nuts 19, and the nuts 19 are rotatably connected with third connecting members 22. The third connecting members 22 are slidably connected to the corresponding slides 2 on the next first fixing frame 12.

[0040] See also Figure 5-Figure 6 , and also includes a plurality of second connecting members 21, which are respectively slidably connected to the left and right slideways 2 close to the electric push rod 13. Two slide grooves are symmetrically arranged on the upper part of the base 1, and the second connecting members 21 are slidably connected to the corresponding slide grooves.

[0041] When people need to use the transparent display screen 11 in the multimedia exhibition hall, they can use the device to operate it. First, people need to determine how many transparent display screens 11 need to be used. Then people use the third connecting piece 22 to connect the front slide 2 with the upper part of the rear first fixed frame 12. Then people start the motor 112 to rotate forward. The output shaft of the motor 112 drives the long rod to rotate forward. The long rod drives the take-up roller 113 to rotate forward, so that the take-up roller 113 reels the wire rope 16, making the wire rope 16 taut. At the same time, the distance between the lifting box 15 and the connecting rod 17 is shortened, so as to prevent the transparent display screen 11 from shaking due to the excessive length of the wire rope 16 when the transparent display screen 11 is used. Then people turn the motor 112 forward. The machine 112 is turned off and the electric push rod 13 is started. The telescopic end of the electric push rod 13 extends upward, and the telescopic end of the electric push rod 13 drives the second fixed frame 14 and then drives the lifting box 15 to move upward. The lifting box 15 drives the long rod and then drives the wire roller 113 to move upward. The wire roller 113 drives the wire rope 16 and then drives the connecting rod 17 to move upward. The connecting rod 17 drives the first connecting member 18 and then drives the first first fixed frame 12 at the back to move upward. The first first fixed frame 12 at the back drives the first slide 2 at the back to move upward, so that the first third connecting member 22 at the back slides from the upper part of the first slide 2 at the back to the lower part, and then the first slide 2 at the back moves upward to drive the first third connecting member 22 at the back to move upward. The first third connecting member 22 at the rear drives the first first fixing frame 12 to move upward, so that the first fixing frames 12 are pulled upward one by one from the front to the back, and the first fixing frames 12 drive the transparent display screens 11 to move upward, and the first fixing frames 12 drive the transparent display screens 11 to change from a folded state to an unfolded state, so that all transparent display screens 11 are unfolded to form a whole transparent display screen 11. At the same time, because the left and right second connecting members 21 restrict the front first fixing frame 12, the front first fixing frame 12 cannot be pulled upward, so that the rear first fixing frame 12 is pulled backward, and the rear first fixing frame 12 drives the second connecting members 21 to move backward. The second connecting member 21 slides backward from the front of the groove on the base 1 to the rear, and then people close the electric push rod 13 and manually rotate the support member 111 counterclockwise, so that the support member 111 blocks the first fixing frame 12. Then people can start and use the transparent display screen 11 through the external control system. When the transparent display screen 11 is used, people manually rotate the support member 111 clockwise, so that the support member 111 no longer blocks the first fixing frame 12. Then people start the motor 112 to reverse, and the output shaft of the motor 112 drives the long rod and then drives the take-up roller 113 to reverse, and the take-up roller 113 no longer rewinds the wire rope 16, so that the wire rope 16 is relaxed. Because the upper part of the base 1 is tilted,Therefore, the second connecting member 21 will drive the bottom first fixing frame 12 to slide forward and reset. At this time, the bottom first fixing frame 12 drives other first fixing frames 12 to move forward. Then people turn off the motor 112 and control the telescopic end of the electric push rod 13 to retract. The telescopic end of the electric push rod 13 drives the second fixing frame 14 and then the lifting box 15 to move downward and reset. The lifting box 15 drives the motor 112 and then drives the long rod to move downward and reset. The long rod drives the take-up roller 113 and then drives the wire rope 16 to move downward. The wire rope 16 drives the connecting rod 17 and then drives the first connecting member 18 to move downward and reset. The first connecting member 18 drives the top first fixing frame 12 and then drives the top transparent display screen 11 to move downward, so that the first fixing frame 14 and the top transparent display screen 11 can move downward. The fixed frame 12 drives the transparent display screen 11 to move downward and reset, and the first fixed frame 12 drives the transparent display screen 11 to return to the mutually folded state. When the telescopic end of the electric push rod 13 is retracted and reset, people close the electric push rod 13. The above operation is performed by setting the electric push rod 13, and the telescopic end of the electric push rod 13 extends upward, so that the first fixed frame 12 drives the transparent display screen 11 to move upward, so that people no longer need to manually hang the transparent display screen 11 at a high place, which simplifies people's operation, saves time and effort, and by setting the third connecting member 22, the third connecting member 22 connects the upper slide 2 with the next first fixed frame 12, so that people can increase or decrease the number of transparent display screens 11, so that the device can adapt to more different scenes.

[0042] Example 2: Based on Example 1, please refer to Figure 9-12 , and also includes a stabilizing mechanism that can stabilize the first fixing frame 12 close to the base 1 when multiple first fixing frames 12 are unfolded to each other to prevent the first fixing frame 12 from shaking. The stabilizing mechanism includes a first transmission rod 33, and the first transmission rod 33 is rotatably connected to the rear part of the base 1. Second gears 34 are fixed at both ends of the first transmission rod 33. A limiting member 3 is slidably connected to one side of the base 1 close to the second gear 34. The limiting member 3 and the corresponding second gear 34 are meshed with each other. The limiting member 3 is squeezed and matched with the first fixing frame 12 at the bottom after unfolding, and a rotating component that allows the first transmission rod 33 to rotate is connected to the base 1.

[0043] See also Fig.12 The rotating assembly includes a rotating rod 321, which is rotatably connected to a side of the base 1 away from the first transmission rod 33. A second belt 35 is wound around the first transmission rod 33 and the rotating rod 321 via a transmission wheel. The left fixing member 110 is rotatably connected to a shaft, and a first belt 32 is wound around the rotating rod 321 and the shaft via a transmission wheel.

[0044] See also Figure 11-Figure 12, and also includes two first gears 31. The upper first gear 31 is fixedly connected to the rotating shaft on the fixing member 110. The shaft of the fixing member 110 is also fixed with a first gear 31, and the first gears 31 are meshed with each other.

[0045] When people use the transparent display screen 11, because the bottom first fixing frame 12 and the base 1 are connected in a sliding manner, and the support member 111 and the fixing member 110 are both connected in a rotating manner, the lower part of the first fixing frame 12 cannot be well blocked, so it may slide during use. Therefore, a stabilizing mechanism is provided to block the lower part of the bottom first fixing frame 12 so that the first fixing frame 12 is stable. The working principle is as follows: when the first fixing frame 12 drives the transparent display screen 11 to unfold, people will manually drive the supporting member 111 to rotate counterclockwise, and the supporting member 111 drives the rotating shaft to drive the upper The first gear 31 rotates counterclockwise, and the first gears 31 mesh with each other, so that the lower first gear 31 rotates clockwise, and the lower first gear 31 drives the shaft on the left fixing member 110 to drive the first belt 32 to rotate clockwise, and the first belt 32 drives the rotating rod 321 to drive the second belt 35 to rotate clockwise, and the second belt 35 drives the first transmission rod 33 to drive the left and right second gears 34 to rotate clockwise, and the second gears 34 and the corresponding limiting members 3 are meshed with each other, so that the limiting members 3 are all moved upward, and the limiting members 3 are all extended out of the interior of the base 1, and the lower part of the first fixing frame 12 at the bottom is pressed. The first belt 32 drives the rotating rod 321 to rotate counterclockwise, and the second belt 35 drives the first transmission rod 33 to rotate counterclockwise, and the second belt 35 drives the first transmission rod 33 to rotate counterclockwise, so that the limiting member 31 drives the shaft on the left fixing member 110 to rotate counterclockwise, and the second belt 35 drives the first transmission rod 33 to rotate counterclockwise. The limiting member 3 no longer blocks the first fixing frame 12 at the bottom, and people can then put away the transparent display screen 11 and the first fixing frame 12. The above operation is performed by setting the limiting member 3. People rotate the supporting member 111 counterclockwise, and the first transmission rod 33 inside the base 1 rotates clockwise through transmission. The first transmission rod 33 drives the second gears 34 on the left and right sides to rotate clockwise, so that the left and right limiting members 3 both move upward, and the limiting members 3 both extend from the inside of the base 1 and block the first fixing frame 12 at the bottom, thereby preventing the transparent display screen 11 from sliding forward when in use because there is no obstruction.

[0046] See also Figure 13-Figure 16, and also includes a fixing mechanism that can prevent the transparent display screen 11 from moving and tipping over when the transparent display screen 11 is in use. The fixing mechanism includes two moving parts 4, which are slidably connected to the left and right sides of the front side of the base 1, respectively. A suction cup 41 is fixed to the bottom of the moving part 4, and a rack 46 is fixed to the upper rear side of the moving part 4. A second transmission rod 43 is fixed to the left side of the first gear 31 below, and the second transmission rod 43 is rotatably connected to the base 1. The right side of the right fixing part 110 is rotatably connected to the third transmission rod 45, and the third transmission rod 45 is rotatably connected to the base 1. A third gear 42 is fixed to the left part of the second transmission rod 43, and a third gear 42 is also fixed to the right part of the third transmission rod 45. The third gear 42 and the corresponding rack 46 are meshed with each other.

[0047] There are also two fourth gears 44 , one of which is fixed to the left part of the third transmission rod 45 , and the other fourth gear 44 is fixedly connected to the right side of the rotating shaft of the fixing member 110 , and the fourth gears 44 are meshed with each other.

[0048] Because the bottom of the base 1 is supported by four wheels, it is easy to move due to external collisions when in use. Therefore, a fixing mechanism is provided to fix the transparent display screen 11 when in use to prevent the transparent display screen 11 from moving or tipping over. The working principle is as follows: when the first fixing frame 12 drives the transparent display screen 11 to unfold, people will manually drive the support member 111 to rotate counterclockwise, and the support member 111 drives the rotating shaft to drive the first gear 31 above to rotate counterclockwise. The first gears 31 are meshed with each other, so that the first gear 31 below rotates clockwise, and the first gear 31 below drives the second transmission rod 43 to rotate counterclockwise. The third gear 42 on the left is driven to rotate clockwise, the third gear 42 on the left is meshed with the rack 46 on the left, the rack 46 on the left drives the moving part 4 on the left and then drives the suction cup 41 on the left to move downward, so that the suction cup 41 on the left is close to the ground, and at the same time, the rotating shaft drives the fourth gear 44 on the top to rotate counterclockwise, and the fourth gears 44 are meshed with each other, so that the fourth gear 44 below rotates clockwise, and the fourth gear 44 below drives the third transmission rod 45 and then drives the third gear 42 on the right to rotate clockwise, and the third gear 42 on the right is meshed with the rack 46 on the right, so that the rack 46 on the right drives the moving part 4 on the right and then drives the suction cup 41 on the right. The transparent display screen 11 is fixed to the ground by the suction cup 41 on the right, and the two suction cups 41 are attracted to the bottom surface, thereby fixing the transparent display screen 11 to prevent the transparent display screen 11 from moving when in use. When the transparent display screen 11 is used, people manually rotate the support member 111 clockwise, and the transparent display screen 11 drives the rotating shaft and then drives the first gear 31 on the top to rotate clockwise, so that the first gear 31 below drives the second transmission rod 43 and then drives the third gear 42 on the left to rotate counterclockwise, so that the rack 46 on the left drives the moving member 4 on the left and then drives the suction cup 41 on the left to move upward and reset, and the suction cup 41 on the left is separated from the ground, and at the same time, the rotating shaft drives the upper The fourth gear 44 rotates clockwise, so that the fourth gear 44 below drives the third transmission rod 45 and then drives the third gear 42 on the right to rotate counterclockwise, so that the rack 46 on the left drives the moving part 4 on the right and then drives the suction cup 41 on the right to move upward and reset, and the suction cup 41 on the right is separated from the ground, and the device is no longer fixed, which is convenient for people to push, and then people can put away the transparent display screen 11. The above operation is performed by setting the suction cup 41, and the suction cup 41 can suck the bottom surface, so that the device can be fixed when the transparent display screen 11 is in use, thereby preventing the transparent display screen 11 from moving or even tipping over during use, making it convenient for people to use the transparent display screen 11.

[0049] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A transparent display screen for a multimedia exhibition hall, comprising a base (1), the top surface of the base (1) being arranged in an inclined manner, an electric push rod (13) being fixed on the base (1), a second fixing frame (14) being fixed on the telescopic end of the electric push rod (13), a lifting box (15) being fixed on the side of the second fixing frame (14) away from the electric push rod (13), characterized in that: The invention also comprises a plurality of wire-receiving rollers (113), a lifting box (15) being rotatably connected to a long rod, a motor (112) being fixedly connected inside the lifting box (15), an output shaft of the motor (112) being fixedly connected to the long rod, the wire-receiving roller (113) being fixed on the long rod, one end of a steel wire rope (16) being fixed on the wire-receiving roller (113), the other end of the steel wire rope (16) passing through the lifting box (15) and being fixedly connected to a connecting rod (17), and the connecting rod (17) being symmetrically threadedly connected to a plurality of nuts (19 ), a first connecting member (18) is rotatably connected to the nut (19), a side of the first connecting member (18) away from the connecting rod (17) is also rotatably connected to the nut (19), a first fixing frame (12) is threadedly connected between the nuts (19), a transparent display screen (11) is arranged in the first fixing frame (12), the transparent display screen (11) is electrically connected to an external control system through a control module, and a blocking component capable of blocking the first fixing frame (12) is connected to the base (1).

2. A transparent display screen for a multimedia exhibition hall as claimed in claim 1, characterized in that: The blocking assembly comprises a plurality of fixing members (110), wherein the fixing members (110) are symmetrically fixed on a side of the base (1) close to the electric push rod (13), a rotating shaft is rotatably connected between the fixing members (110), and a supporting member (111) is fixed on the rotating shaft.

3. A transparent display screen for a multimedia exhibition hall as claimed in claim 2, characterized in that: It also includes a motor (112). The transparent display screen for a multimedia exhibition hall as described in claim 3 is characterized in that it also includes a folding mechanism that can fold the multiple first fixing frames (12) when multiple first fixing frames (12) and transparent display screens (11) are provided. The folding mechanism includes multiple slides (2), and every two slides (2) are symmetrically fixed on the same first fixing frame (12). A nut (19) is symmetrically threadedly connected to one side of the first fixing frame (12) away from the base (1), and a third connecting member (22) is rotatably connected to the nut (19). The third connecting member (22) is slidably connected to the corresponding slide (2) on the next first fixing frame (12).

4. A transparent display screen for a multimedia exhibition hall as claimed in claim 3, characterized in that: It also includes a plurality of second connecting members (21), which are slidably connected to a slideway (2) near the electric push rod (13), and a plurality of slide grooves are symmetrically arranged on the base (1), and the second connecting members (21) are slidably connected to the corresponding slide grooves.

5. A transparent display screen for a multimedia exhibition hall as claimed in claim 4, characterized in that: The invention also comprises a stabilizing mechanism capable of stabilizing the first fixing frame (12) close to the base (1) to prevent the first fixing frame (12) from shaking when the plurality of first fixing frames (12) are mutually unfolded, wherein the stabilizing mechanism comprises a first transmission rod (33), the first transmission rod (33) is rotatably connected to the base (1), a plurality of second gears (34) are symmetrically fixed at both ends of the first transmission rod (33), a limiting member (3) is slidably connected to one side of the base (1) close to the second gear (34), the limiting member (3) is meshed with the corresponding second gear (34), the limiting member (3) is pressed and matched with the first fixing frame (12) close to the base (1), and a rotating assembly capable of rotating the first transmission rod (33) is connected to the base (1).

6. A transparent display screen for a multimedia exhibition hall as claimed in claim 5, characterized in that: The rotating assembly comprises a rotating rod (321), the rotating rod (321) being rotatably connected to a side of the base (1) away from the first transmission rod (33), a second belt (35) being wound around the first transmission rod (33) and the rotating rod (321) via a transmission wheel, one of the fixing members (110) being rotatably connected to a shaft, a first belt (32) being wound around the rotating rod (321) and the shaft via a transmission wheel.

7. A transparent display screen for a multimedia exhibition hall as claimed in claim 6, characterized in that: It also includes a plurality of first gears (31), one of which is fixedly connected to a rotating shaft on the fixing member (110), a first gear (31) is also fixed on the shaft of the fixing member (110), and the first gears (31) are meshed with each other.

8. The transparent display screen for a multimedia exhibition hall as claimed in claim 7, characterized in that: The invention also comprises a fixing mechanism capable of preventing the transparent display screen (11) from moving and tipping over when the transparent display screen (11) is in use. The fixing mechanism comprises a plurality of moving parts (4). The moving parts (4) are symmetrically slidably connected to the base (1). A suction cup (41) is fixed to the bottom of the moving part (4). A rack (46) is fixed to the side of the moving part (4) away from the suction cup. A second transmission rod (43) is fixed to one of the first gears (31). The second transmission rod (43) is rotatably connected to the base (1). A third transmission rod (45) is rotatably connected to the fixing part (110) away from the second transmission rod (43). The third transmission rod (45) is rotatably connected to the base (1). A third gear (42) is fixed to the side of the second transmission rod (43) close to the moving part (4). A third gear (42) is also fixed to the side of the third transmission rod (45) close to the moving part (4). The third gear (42) and the corresponding rack (46) are meshed with each other.

9. A transparent display screen for a multimedia exhibition hall as claimed in claim 8, characterized in that: It also includes a plurality of fourth gears (44), one of which is fixed on the third transmission rod (45), and another fourth gear (44) is fixedly connected to the rotating shaft of the fixing member (110), and the fourth gears (44) are meshed with each other.

10. A transparent display screen for a multimedia exhibition hall as claimed in claim 9, characterized in that: The bottom of the base (1) is also provided with a plurality of wheels.

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