Digital media design display propaganda device and use method thereof

Abstract

The invention belongs to the technical field of propaganda devices, and particularly relates to a digital media design display propaganda device and a use method thereof. A display screen is arranged in the mounting frame, and the display screen is located at an opening of the mounting frame; two rows of mounting hooks are fixedly mounted on the back of the display screen, and the mounting hooks are inverted-L-shaped; two transverse plates are arranged in the mounting frame; the two transverse plates are fixedly connected through a connecting plate; the two rows of mounting hooks are hung on the corresponding transverse plates; two slide ways are formed in the side plates, located on the left side and the right side of the mounting frame, of the two sides of the two transverse plates correspondingly, and the two sides of the two transverse plates slide in the slide ways correspondingly; a shielding assembly is arranged in the mounting frame, and the shielding assembly is used for shielding the display screen; by arranging the shielding assembly, the display screen can be shielded, and the display screen can be prevented from being affected by external dust and sand wind after the stadium is closed.

Description

Technical Field

[0001] The invention belongs to the technical field of promotional devices, and in particular to a digital media design display promotional device and a use method thereof. Background Art

[0002] Digital media display and promotion devices refer to devices or systems that use digital media technology to display and disseminate information. Common ones include electronic display screens, digital signage, interactive touch screen devices, etc. They are mainly used to display products, services, brand images or specific information to achieve the purpose of publicity, promotion and communication. Digital media display and promotion devices are widely used in public places such as commercial plazas, shopping centers, airports, railway stations, subway stations, etc. to play advertisements, promotional videos, information announcements, etc.; they are also commonly used in corporate exhibition halls, museums, science and technology museums, etc. to display corporate image, product information, exhibition content, etc.

[0003] When digital media display and promotion devices are used in some exhibition halls, shopping malls, science and technology museums and other places, they will display the information content of each venue. However, when exhibition halls, shopping malls, science and technology museums and other places are closed or closed, although the digital media display and promotion devices no longer display information content, the digital media display and promotion devices are still exposed to the outside world. Digital media display and promotion devices exposed to the outside world are easily affected by the external environment. Summary of the invention

[0004] In order to make up for the shortcomings of the prior art and solve the above technical problems, the present invention proposes a digital media design display and promotion device and a method of using the same. The present invention can shield the display screen by setting a shielding component, so as to prevent the display screen from being affected by external dust and sand after the venue is closed. The specific structure is as follows: A digital media design display and publicity device comprises a mounting frame; the mounting frame is composed of a side plate, a top plate, a bottom plate and a back plate; The left and right side panels of the installation frame are provided with oblong grooves on the end surfaces on the opposite sides; a shielding component is provided in the installation frame; The shielding assembly includes a slide plate; a slide plate evenly arranged between the two oblong grooves, and two ends of the slide plate slide in the oblong grooves on both sides respectively; In the initial state, the plurality of slide plates are located in a half of the oblong groove close to the back plate, and the top slide plate is located at the top of the oblong groove, and the bottom slide plate is located at the bottom of the oblong groove; Chains are rotatably connected in the two oblong grooves, and the chains are connected end to end, and multiple slide plates are connected in series; The bottom positions of the side plates on both sides of the installation frame are rotatably connected with sprockets, and the sprockets are engaged with the inner ring of the chain and driven by a motor; A shielding layer is fixedly connected between the two adjacent slides. The shielding layer connected to the top extends to the position just above the oblong groove, and the shielding layer connected to the bottom extends to the bottom position of the oblong groove.

[0005] Preferably, a display screen is provided in the installation frame, and the display screen is located at the opening of the installation frame; two rows of mounting hooks are fixedly installed on the back of the display screen, and the mounting hooks are in an inverted L shape; Two horizontal plates are provided in the installation frame; the two horizontal plates are fixedly connected by a connecting plate; the two rows of installation hooks are hung on the corresponding horizontal plates; Two slideways are provided on the two sides of the two horizontal plates, which are located on the left and right side plates of the installation frame, and the two sides of the two horizontal plates slide in the slideways respectively; The side plates on both sides of the installation frame are provided with adjustment mechanisms, and the adjustment mechanisms are used to adjust the position of the display screen.

[0006] Preferably, the adjustment mechanism comprises a fixing block; The slideway at the top faces one side of the back plate, and fixed blocks are fixedly connected to both side plates; The two fixing blocks are both rotatably connected with screw rods; the upper horizontal plate is provided with a thread groove on one side facing the two screw rods, and the two screw rods are respectively threadedly engaged with the corresponding thread grooves; The first gear is fixedly connected to one side of the two screw rods facing the back plate; a tooth plate is fixedly connected to one of the slide plates close to the screw rod, and the tooth plate and the first gear are staggered and meshed with each other.

[0007] Preferably, the two upper slide plates are provided with C-shaped grooves on their end surfaces facing the oblong groove; The C-shaped groove extends to both sides of the slide plate and extends into the oblong groove, and does not penetrate the slide plate; Cleaning components are provided in the two C-shaped grooves, and the cleaning components are used to clean the display screen.

[0008] Preferably, the cleaning assembly comprises a rotating rod; A rotating rod is rotatably connected in the two C-shaped grooves; the rotating rod is tangent to the inner ring surface of the oblong groove; the rotating rod extends to one side of the oblong groove, and a rubber layer is fixedly connected to the outer ring surface of the rotating rod. When the rotating rod revolves with the skateboard, the rotating rod will rotate along the oblong groove; The outer ring surface of the rotating rod is fixedly connected with a cleaning layer which is evenly arranged, and the cleaning layer is located between the opposite oblong grooves and does not extend into the inside of the oblong grooves.

[0009] Preferably, one side of the slide plate sliding in the oblong groove is rotatably connected with a ball.

[0010] Preferably, sealing layers are fixedly connected to the end surfaces of the uppermost and lowermost slide plates on opposite sides; The two sealing layers are in contact with the top plate and the bottom plate respectively in an initial state.

[0011] Preferably, an n-type groove is provided on the two side plates and the top plate; An n-type plate is slidably connected in the n-type groove; a circular groove is formed on one side of the two slideways located above and facing the n-type groove, and the circular groove is connected with the adjacent slideway and the n-type groove; A second gear is rotatably connected in the circular groove; a first tooth groove is provided on a side of the upper horizontal plate close to the second gear, and the first tooth groove is meshed with the second gear; A second tooth groove is provided on a side of the second gear close to the n-type plate, and the second tooth groove is meshed with the second gear.

[0012] A method for using a digital media design display promotion device, which is applicable to the above-mentioned promotion device, comprises the following steps: Step 1: When the media design display device is in use, install the display screen in the installation frame, and then connect the display screen to the power supply, and then the information content in the venue can be played on the display screen; Step 2: When the venue reaches closing time, the chain drives the slide plate and the shielding layer to gradually block the opening of the installation frame to prevent the display screen from being affected by the external environment; Step 3: When the venue opens, the chain is used to drive the slide and the shielding layer to gradually detach from the opening of the installation frame, and then the display screen can be used to play the information content in the venue.

[0013] The beneficial effects of the present invention are as follows: 1. A digital media design display and promotion device and a method of using the same according to the present invention, By first pulling the display screen back into the installation frame, shielding the display screen with the installation frame, and then shielding the opening position of the installation frame with the shielding layer, it is possible to prevent the display screen from being affected by the outside world after the venue is closed, causing external dust or impurities to adhere to the display screen. When there is dust or impurities on the display screen, it will affect the display effect and light transmittance of the display screen. At the same time, if the installation frame is installed in the external environment, the shielding layer can be used to shield the display screen. This can prevent the display screen from being affected by external dust, wind, sand, rain and snow after the venue is closed.

[0014] 2. The digital media design display and publicity device and the method of using the same described in the present invention enable the cleaning component to gradually move downward along the display screen, and the cleaning layer on the cleaning component will wipe the outer ring surface of the display screen, thereby erasing the dust and impurities adhered to the display screen, thereby erasing the dust or impurities adhered to the display screen when in use, thereby ensuring the cleanliness of the display screen and preventing the presence of dust or impurities on the display screen from affecting the display effect and light transmittance of the display screen.

[0015] 3. The digital media design display and publicity device and the method of using the same described in the present invention can shield part of the external light source by moving the shielding layer to the position above the display screen. At the same time, since the display screen is pulled back into the installation frame, the installation frame can also shield part of the external light source, thereby reducing the influence of the external light source on the display screen, thereby reducing the reflection of the display screen; at the same time, by moving the n-type plate out of the n-type groove, the external light source can be further shielded, thereby further reducing the influence of the external light source on the display screen, thereby reducing the reflection of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 is a stereoscopic diagram of the promotional device of the present invention when in use; Figure 2 is a three-dimensional diagram of the promotional device of the present invention when not in use; Figure 3 It is a three-dimensional picture of the publicity device of the present invention when blocking the light source; Figure 4 It is a diagram of the internal structure of the propaganda device of the present invention; Figure 5 The present invention Figure 4 A partial enlarged view of the middle part; Figure 6 It is a structural diagram of the slider and the cleaning component in the present invention; Figure 7 The present invention Figure 1 A cross-sectional view of Figure 8 The present invention Figure 7 A partial enlarged view of point B in the middle; Fig. 9 The present invention Figure 2 A cross-sectional view of Fig.10 The present invention Figure 3 A cross-sectional view of Fig.11 The present invention Fig.10 A partial enlarged view of point C in the middle; Fig.12 The present invention Fig. 9 Sectional view at DD in the middle.

[0018] In the figure: 1. installation frame; 11. display screen; 12. installation hook; 13. horizontal plate; 14. connecting plate; 15. slideway; 2. oblong groove; 21. slide plate; 22. chain; 23. sprocket; 24. shielding layer; 3. fixing block; 31. screw rod; 32. first gear; 33. tooth plate; 4. C-shaped groove; 41. rotating rod; 42. cleaning layer; 43. sealing layer; 5. n-shaped groove; 51. n-shaped plate; 52. second gear; 53. first tooth groove; 54. second tooth groove. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0020] Embodiment 1: Figures 1 to 12 As shown, on the one hand, the present invention discloses a digital media design display and promotion device, including a mounting frame 1; the mounting frame 1 is composed of two side panels, a top panel, a bottom panel and a back panel; Support legs are installed at the bottom of the installation frame 1; A display screen 11 is provided in the installation frame 1, and the display screen 11 is located at the opening of the installation frame 1; two rows of mounting hooks 12 are fixedly installed on the back of the display screen 11, and the mounting hooks 12 are inverted L-shaped; Two horizontal plates 13 are provided in the installation frame 1; the two horizontal plates 13 are fixedly connected by a connecting plate 14; the two rows of installation hooks 12 are hung on the corresponding horizontal plates 13; Two slideways 15 are provided on both sides of the two transverse plates 13 located on the left and right side plates of the installation frame 1, and the two sides of the two transverse plates 13 slide in the slideways 15 respectively; A shielding component is provided in the installation frame 1, and the shielding component is used to shield the display screen 11; In this embodiment, oblong grooves 2 are provided on the end surfaces of the left and right side plates of the installation frame 1 on the opposite sides; the shielding assembly includes a slide plate 21; A slide plate 21 is evenly arranged between the two oblong grooves 2, and the two ends of the slide plate 21 slide in the oblong grooves 2 on both sides respectively; In the initial state, the plurality of slide plates 21 are located in a half of the oblong groove 2 close to the back plate, and the top slide plate 21 is located at the top of the oblong groove 2, and the bottom slide plate 21 is located at the bottom of the oblong groove 2; A chain 22 is rotatably connected in the two oblong grooves 2, and the chain 22 is connected end to end, and multiple slide plates 21 are connected in series; The bottom positions of the side plates on both sides of the installation frame 1 are rotatably connected with sprockets 23, and the sprockets 23 are meshed with the inner ring of the chain 22 and driven by a motor; A shielding layer 24 is fixedly connected between the two adjacent slide plates 21. The shielding layer 24 connected to the top extends to the position just above the oblong groove 2, and the shielding layer 24 connected to the bottom extends to the bottom of the oblong groove 2. The side panels on both sides of the installation frame 1 are provided with adjustment mechanisms, and the adjustment mechanisms are used to adjust the position of the display screen 11; Specifically, when the media design display and publicity device is used, the installation frame 1 is first installed at the required position of the venue through the legs, and then the installation hooks 12 fixedly connected to the display screen 11 are hung on the two horizontal plates 13. At this time, the display screen 11 will be installed in the installation frame 1. After the display screen 11 is powered, the information content in the venue can be played using the display screen 11; More specifically, when the venue reaches the closing time, the control motor rotates, and the rotating motor drives the sprocket 23 to rotate. Since the sprocket 23 is meshed with the chain 22, during the rotation of the sprocket 23, the chain 22 is driven to rotate counterclockwise along the oblong groove 2. Since multiple slides 21 are connected in series through the chain 22, multiple slides 21 are driven to slide counterclockwise along the oblong groove 2. During the rotation of the slide 21, it will gradually slide toward the half of the oblong groove 2 close to the side of the display screen 11. Since a shielding layer 24 is fixedly connected between two adjacent slides 21, the shielding layer 24 will follow the slide 21 to move along the oblong groove 2 and gradually shield the opening of the installation frame 1. As the chain 22 continues to drive the slide 21 to slide in the oblong groove 2, when the slide 21 originally located at the top slides to the bottom, the slide 21 originally located at the bottom also slides to the top. At this time, multiple slides 21 and the shielding layer 24 slide along the oblong groove 2 to the opening position of the installation frame 1; Furthermore, the shielding layer 24 will shield the opening of the installation frame 1, thereby preventing the display screen 11 from being affected by the outside world after the venue is closed, causing external dust or impurities to adhere to the display screen 11. When there is dust or impurities on the display screen 11, it will affect the display effect and light transmittance of the display screen 11. At the same time, if the installation frame 1 is installed in the external environment, the shielding layer 24 can be used to shield the display screen 11, so that the display screen 11 can be prevented from being affected by external dust, wind, sand, rain and snow after the venue is closed.

[0021] Embodiment 2: The adjustment mechanism includes a fixed block 3; the slideway 15 located at the top is facing the side of the back plate, and the fixed blocks 3 are fixedly connected to the side plates on both sides; the two fixed blocks 3 are rotatably connected with screw rods 31; the horizontal plate 13 located at the top is provided with a thread groove on the side facing the two screw rods 31, and the two screw rods 31 are respectively threadedly meshed with the corresponding thread grooves; the two screw rods 31 are fixedly connected to the side facing the back plate with a first gear 32; a tooth plate 33 is fixedly connected to one of the slide plates 21 close to the screw rods 31, and the tooth plate 33 and the first gear 32 are staggered and meshed with each other; Specifically, when the slide plate 21 rotates following the chain 22, the slide plate 21 close to the first gear 32 will slide upward along the oblong groove 2, and the slide plate 21 sliding upward will drive the tooth plate 33 to move upward, and the upward tooth plate 33 will push the first gear 32 to rotate, and the rotating first gear 32 will drive the screw rod 31 to rotate. Since the screw rod 31 is threadedly engaged with the thread groove on the cross plate 13, the rotating screw rod 31 will pull the cross plate 13 to move along the slideway 15 toward the fixed block 3, and the moving cross plate 13 will pass through the mounting hook 1 2 pulls the display screen 11 to move into the installation frame 1, so as to retract the display screen 11 into the installation frame 1. When the tooth plate 33 is disengaged from the first gear 32, the first gear 32 is no longer pushed to rotate, and then the tooth plate 33 rotates with the slide plate 21 to the opening position of the installation frame 1. In this process, the display screen 11 can be first pulled back into the installation frame 1, and the installation frame 1 is used to cover the display screen 11, and then the opening position of the installation frame 1 is covered with the covering layer 24, so that the display screen 11 can be fully covered; More specifically, when the venue reaches the opening time, the control motor rotates in the reverse direction, thereby driving the chain 22 to rotate clockwise, and the chain 22 drives multiple slides 21 to slide clockwise along the oblong groove 2, and at the same time drives the shielding layer 24 to slide clockwise and gradually restore to the initial state. The slide 21 rotating with the chain 22 will gradually slide into the oblong groove 2 close to the half of the back plate, and at the same time the tooth plate 33 will slide with the slide 21. When the tooth plate 33 slides to the position of the first gear 32, the downwardly moving slide 21 will mesh with the first gear 32, thereby driving the first gear 32 to drive the screw 31 to rotate in the reverse direction. The screw 31 rotating in the reverse direction will push the cross plate 13 to move toward the opening position of the installation frame 1, and at the same time the cross plate 13 will push the display screen 11 to move toward the opening position of the installation frame 1, and then the display screen 11 can continue to be used to display the information content in the venue; Furthermore, when the display screen 11 is affected by an external light source, the display screen 11 will reflect light, which will make the display screen 11 unclear. At this time, the control motor drives the chain 22 to rotate counterclockwise through the sprocket 23, which will drive the skateboard 21 to rotate along the oblong groove 2. At the same time, the moving tooth plate 33 will engage with the first gear 32 and pull the display screen 11 back into the installation frame 1 through the screw 31. When the skateboard 21 located at the top rotates to the upper left position of the display screen 11, the shielding layer 24 connected to the skateboard 21 also moves to the position above the display screen 11. At this time, the shielding layer 24 can block part of the external light source. At the same time, since the display screen 11 is pulled back into the installation frame 1, the installation frame 1 can also block part of the external light source, thereby reducing the influence of the external light source on the display screen 11, thereby reducing the reflection of the display screen 11.

[0022] Embodiment 3: A C-shaped groove 4 is provided on the end surface of the two upper slide plates 21 facing the oblong groove 2; the C-shaped groove 4 extends to both sides of the slide plate 21 and extends into the oblong groove 2, and does not penetrate the slide plate 21; a cleaning component is provided in each of the two C-shaped grooves 4, and the cleaning component is used to clean the display screen 11; In this embodiment, the cleaning assembly includes a rotating rod 41; the rotating rods 41 are rotatably connected in the two C-shaped grooves 4; the rotating rod 41 is tangent to the inner ring surface of the oblong groove 2; the rotating rod 41 extends to one side of the oblong groove 2, and a rubber layer is fixedly connected to the outer ring surface of the rotating rod 41. When the rotating rod 41 revolves with the slide plate 21, the rotating rod 41 will rotate along the oblong groove 2; The outer ring surface of the rotating rod 41 is fixedly connected with a cleaning layer 42 arranged evenly, and the cleaning layer 42 is located between the opposite oblong grooves 2 and does not extend into the oblong grooves 2; In this embodiment, the slide plate 21 slides on one side of the oblong groove 2, and both are rotatably connected with a ball; In this embodiment, sealing layers 43 are fixedly connected to the end surfaces of the uppermost and lowermost slide plates 21 on opposite sides. The two sealing layers 43 are in contact with the top plate and the bottom plate respectively in an initial state; Specifically, since the two upper slide plates 21 both have C-shaped grooves 4, and the C-shaped grooves 4 are both provided with cleaning components, when the chain 22 drives the multiple slide plates 21 and the shielding layer 24 to shield the opening of the installation frame 1, the slide plate 21 with the C-shaped groove 4 will drive the cleaning component to move along the oblong groove 2, and when the cleaning component moves to one side of the display screen 11, the cleaning component will gradually move down along the display screen 11, and the cleaning layer 42 on the cleaning component will wipe the outer ring surface of the display screen 11, so that the dust and impurities adhering to the display screen 11 can be wiped off, so that the dust or impurities adhering to the display screen 11 when in use can be wiped off, so as to ensure the cleanliness of the display screen 11 and avoid the dust or impurities on the display screen 11 affecting the display effect and light transmittance of the display screen 11. At the same time, when the museum is open, the chain 22 drives the multiple slide plates 21 to restore the initial state, and the slide plate 21 equipped with the cleaning component will also pass through one side of the display screen 11, so that the display screen 11 can be wiped again; More specifically, since the rotating rod 41 is tangent to the oblong groove 2, and a rubber layer is fixedly connected to the outer circumferential surface of the rotating rod 41, and since the rubber layer and the oblong groove 2 have a certain friction force, when the rotating rod 41 rotates along the oblong groove 2, the rotating rod 41 itself will rotate under the action of the friction force, and the rotating rotating rod 41 will drive the cleaning layer 42 to rotate, and the rotating cleaning layer 42 can rotate and wipe the display screen 11, thereby improving the wiping effect of the display screen 11; Furthermore, a sealing layer 43 is fixedly connected to the uppermost and lowermost slide plates 21. When the slide plate 21 and the shielding layer 24 shield the opening of the mounting frame 1, the sealing layer 43 will contact the top plate and the bottom plate, thereby further improving the shielding effect of the opening of the mounting frame 1 and preventing external dust from entering the mounting frame 1 through the gap. Since a ball bearing is rotatably connected to one side of the slide plate 21 sliding in the oblong groove 2, the friction between the slide plate 21 and the oblong groove 2 will be reduced during the sliding process.

[0023] Embodiment 4: An n-type groove 5 is provided on both the side plates and the top plate; an n-type plate 51 is slidably connected in the n-type groove 5; a circular groove is provided on the side of the two slideways 15 located above facing the n-type groove 5, and the circular groove is connected with the adjacent slideway 15 and the n-type groove 5; a second gear 52 is rotatably connected in the circular groove; a first tooth groove 53 is provided on the side of the horizontal plate 13 located above close to the second gear 52, and the first tooth groove 53 is meshed with the second gear 52; a second tooth groove 54 is provided on the side of the second gear 52 close to the n-type plate 51, and the second tooth groove 54 is meshed with the second gear 52; Specifically, when the horizontal plate 13 pulls the display screen 11 to move into the installation frame 1, the first tooth groove 53 on the horizontal plate 13 will push the second gear 52 to rotate, and the rotating second gear 52 will drive the n-type plate 51 with the second tooth groove 54 to gradually move out of the n-type groove 5. When the horizontal plate 13 stops moving, the n-type plate 51 will no longer move out of the n-type groove 5. At this time, part of the n-type plate 51 moves out of the n-type groove 5. After the n-type plate 51 moves out, it can further block the external light source, thereby further reducing the influence of the external light source on the display screen 11, thereby reducing the reflection of the display screen 11. More specifically, when the museum is opened, the screw 31 will push the cross plate 13 to move toward the opening position of the mounting frame 1, thereby pushing the second gear 52 to rotate through the first tooth groove 53, and the rotating second gear 52 will push the n-type plate 51 to move through the second tooth groove 54, and the n-type plate 51 will gradually slide into the n-type groove 5.

[0024] On the other hand, the present invention also provides a method for using the digital media design display promotion device, which is applicable to the above-mentioned promotion device and includes the following steps: Step 1: When the media design display and publicity device is in use, the display screen 11 is installed in the installation frame 1, and then the display screen 11 is connected to the power supply, and the information content in the venue can be played by the display screen 11; Step 2: When the venue reaches closing time, the chain 22 drives the slide plate 21 and the shielding layer 24 to gradually shield the opening of the installation frame 1 to prevent the display screen 11 from being affected by the external environment; Step 3: When the venue reaches the opening time, the chain 22 is used to drive the slide plate 21 and the shielding layer 24 to gradually leave the opening of the installation frame 1, and then the display screen 11 can be used to play the information content in the venue.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A digital media design display and promotion device, characterized in that: It comprises an installation frame (1); the installation frame (1) is composed of side panels, a top panel, a bottom panel and a back panel; The installation frame (1) has oblong grooves (2) formed on opposite side end surfaces of the left and right side plates; a shielding component is provided inside the installation frame (1); The shielding assembly comprises a slide plate (21); a slide plate (21) is evenly arranged between the two oblong grooves (2), and two ends of the slide plate (21) slide in the oblong grooves (2) on both sides respectively; In an initial state, the plurality of slide plates (21) are located in a half of the oblong groove (2) close to the back plate, and the top slide plate (21) is located at the top of the oblong groove (2), and the bottom slide plate (21) is located at the bottom of the oblong groove (2); A chain (22) is rotatably connected in the two oblong grooves (2), and the chain (22) is connected end to end and connects the plurality of slide plates (21) in series; The bottom positions of the side plates on both sides of the installation frame (1) are rotatably connected to sprockets (23), and the sprockets (23) are meshed with the inner ring of the chain (22) and driven by a motor; A shielding layer (24) is fixedly connected between each of the two adjacent slide plates (21); the shielding layer (24) connected to the topmost extends to a position just above the oblong groove (2), and the shielding layer (24) connected to the bottommost extends to a position at the bottom of the oblong groove (2).

2. A digital media design display and publicity device according to claim 1, characterized in that: A display screen (11) is provided in the installation frame (1), and the display screen (11) is located at the opening of the installation frame (1); two rows of installation hooks (12) are fixedly installed on the back of the display screen (11), and the installation hooks (12) are in an inverted L shape; Two transverse plates (13) are provided in the installation frame (1); the two transverse plates (13) are fixedly connected via a connecting plate (14); the two rows of installation hooks (12) are both hung on the corresponding transverse plates (13); Two slideways (15) are provided on the left and right side plates of the installation frame (1) on both sides of the two transverse plates (13), and the two sides of the two transverse plates (13) slide in the slideways (15) respectively; Adjustment mechanisms are provided on the side panels on both sides of the installation frame (1), and the adjustment mechanisms are used to adjust the position of the display screen (11).

3. A digital media design display and publicity device according to claim 2, characterized in that: The adjustment mechanism comprises a fixing block (3); The slideway (15) located at the top faces one side of the back plate, and fixed blocks (3) are fixedly connected to the side plates on both sides; The two fixing blocks (3) are both rotatably connected with screw rods (31); the upper horizontal plate (13) is provided with a thread groove on one side facing the two screw rods (31), and the two screw rods (31) are respectively threadedly engaged with the corresponding thread grooves; A first gear (32) is fixedly connected to one side of the two screw rods (31) facing the back plate; a toothed plate (33) is fixedly connected to one of the slide plates (21) close to the screw rods (31), and the toothed plate (33) and the first gear (32) are arranged alternately and mesh with each other.

4. A digital media design display and publicity device according to claim 3, characterized in that: The two upper slide plates (21) are each provided with a C-shaped groove (4) on one end surface facing the oblong groove (2); The C-shaped groove (4) extends to both sides of the slide plate (21) and extends into the oblong groove (2), but does not penetrate the slide plate (21); Cleaning components are provided in both C-shaped grooves (4), and the cleaning components are used to clean the display screen (11).

5. A digital media design display and publicity device according to claim 4, characterized in that: The cleaning assembly comprises a rotating rod (41); A rotating rod (41) is rotatably connected in the two C-shaped grooves (4); the rotating rod (41) is tangent to the inner ring surface of the oblong groove (2); the rotating rod (41) extends to one side of the oblong groove (2), and a rubber layer is fixedly connected to the outer ring surface of the rotating rod (41). When the rotating rod (41) revolves with the slide plate (21), the rotating rod (41) rotates along the oblong groove (2); The outer ring surface of the rotating rod (41) is fixedly connected with a cleaning layer (42) arranged evenly, and the cleaning layer (42) is located between the opposite oblong grooves (2) and does not extend into the interior of the oblong grooves (2).

6. A digital media design display and publicity device according to claim 5, characterized in that: The slide plate (21) slides on one side of the oblong groove (2) and is rotatably connected with a ball.

7. A digital media design display and publicity device according to claim 6, characterized in that: Sealing layers (43) are fixedly connected to the end surfaces of the uppermost and lowermost slide plates (21) on opposite sides; The two sealing layers (43) are in contact with the top plate and the bottom plate respectively in an initial state.

8. A digital media design display and publicity device according to claim 7, characterized in that: An n-type groove (5) is provided on the two side plates and the top plate; An n-type plate (51) is slidably connected in the n-type groove (5); the two slideways (15) located above are provided with circular grooves on one side facing the n-type groove (5), and the circular grooves are connected to the adjacent slideways (15) and the n-type groove (5); A second gear (52) is rotatably connected in the circular groove; a first tooth groove (53) is provided on a side of the upper horizontal plate (13) close to the second gear (52), and the first tooth groove (53) is meshed with the second gear (52); A second tooth groove (54) is provided on a side of the second gear (52) close to the n-type plate (51), and the n-type plate (51) is meshed with the second gear (52).

9. A method for using a digital media design display and promotion device, characterized in that: The method is applicable to the promotional device according to any one of claims 1 to 8, and comprises the following steps: Step 1: When the media design display and publicity device is used, the display screen (11) is installed in the installation frame (1), and then the display screen (11) is connected to electricity, and the information content in the venue can be played using the display screen (11); Step 2: When the venue reaches closing time, the chain (22) drives the slide plate (21) and the shielding layer (24) to gradually shield the opening of the installation frame (1) to prevent the display screen (11) from being affected by the external environment; Step 3: When the venue reaches the opening time, the chain (22) is used to drive the slide plate (21) and the shielding layer (24) to gradually leave the opening of the installation frame (1), and then the display screen (11) can be used to play the information content in the venue.

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