Propaganda display device

Abstract

The invention relates to the technical field of display devices, and particularly discloses a propaganda display device which comprises a display mechanism and a playing mechanism, the display mechanism comprises a propaganda frame plate, a first shaft barrel and a second shaft barrel, and the playing mechanism comprises audio playing equipment arranged on the upper surface of the first shaft barrel and an external bin fixedly arranged on one side face of an adjusting bin. A protective shell is fixedly installed on the upper surface of the external bin, an audio playing device is arranged in the protective shell, a driving assembly is arranged in the external bin, the driving assembly comprises an extension shaft and an outer coupling shaft arranged at one end of a first connecting shaft, and the extension shaft comprises a trigger assembly; according to the device, the propaganda frame plate provided with the first shaft barrel and the second shaft barrel is arranged, the audio playing device is installed on the propaganda frame plate and used for playing audio matched with a scene play, and when the follow-up gear rotates by a certain number of circles and reaches the penetrating groove, just one propaganda page is switched, so that background audio can be correctly played every time the page is switched, and therefore the effect of playing the background audio is achieved. Manual operation is not needed, and convenience is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of display devices, and in particular relates to a publicity display device. Background Art

[0002] Legal publicity and display devices can not only enhance the public's awareness and understanding of laws and regulations, but also improve the credibility and image of legal institutions and promote judicial justice. They can display static images, animations, videos, texts, sounds and other forms of content. They can interact with the Internet, social media, mobile devices, etc., and have the effect of widely disseminating legal knowledge and attracting more audiences.

[0003] A popular law publicity and display device proposed in the patent with publication number CN 220442359 U comprises a base, a pillar is fixedly connected to the top of the base, a cavity is arranged inside the base, a rotating rod is rotatably installed inside the cavity, a hand wheel is fixedly connected to the left end of the rotating rod, a bevel gear 1 is fixedly connected to the outside of the rotating rod, a bevel gear 2 is arranged outside the bevel gear 1, a screw is fixedly connected to the top of the bevel gear 2, the popular law publicity and display device is provided with a plurality of rotatable display boards 2, the front and rear four display boards 2 are opened by rotating, the display space is expanded with the display board 1 to accommodate more display materials, a storage box and a storage rack are fixed on the display board 1 and the display board 2 through the through hole 1 and the through hole 2 adapted to the fastening bolt, the storage function is increased, the practicality is improved, the hand wheel is rotated to drive the screw to rotate, thereby driving the lifting column to move up and down, so as to adjust the height of the publicity and display device;

[0004] Traditional propaganda devices only provide basic display and lifting functions. However, when actually carrying out legal education knowledge popularization activities, situational dramas and audio are also needed for auxiliary propaganda. Traditional display devices can only replace the background of situational dramas, and the audio control still requires manual operation. Every time the background is switched, the corresponding audio needs to be manually replaced, which is cumbersome to implement. In addition, since different propaganda personnel have different lengths of explanation for different situational dramas, the automatic playback form cannot guarantee that the audio corresponds to the currently displayed background.

[0005] Therefore, those skilled in the art have proposed a publicity and display device to solve the problems raised by the background technology.

[0006] The above information disclosed in this background technology is only used to increase the understanding of the background technology of the present invention and therefore, it may include information that does not constitute the prior art known to ordinary technicians in this field. Summary of the invention

[0007] The purpose of the present invention is to provide a publicity display device to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A publicity display device, comprising:

[0010] The display mechanism comprises a publicity frame, a first shaft cylinder and a second shaft cylinder, the first shaft cylinder and the second shaft cylinder are respectively fixedly mounted on the upper and lower ends of the publicity frame, an adjusting bin is fixedly mounted on one side of the publicity frame, the first shaft cylinder comprises a first reel inside, the second shaft cylinder comprises a second reel inside, one end of the first reel is fixedly connected with a first connecting shaft, a first roller is fixedly mounted on a side surface around the first connecting shaft, a second roller is mounted inside the regulating bin, one end of the second roller is connected with a switching crank, a threaded packaging cover is screwed on one end of the first shaft cylinder and the second shaft cylinder away from the regulating bin, and a background reeling groove and a background switching groove are respectively provided on the first shaft cylinder and the second shaft cylinder;

[0011] The playback mechanism includes an audio playback device arranged on the upper surface of the first shaft cylinder and an external chamber fixedly arranged on a side of the adjustment chamber, a protective shell is fixedly installed on the upper surface of the external chamber, an audio playback device is arranged in the protective shell, and a driving component is included in the external chamber, the driving component includes an extension shaft and an external connecting shaft arranged at one end of the first connecting shaft, and the extension shaft includes a trigger component.

[0012] Preferably, the peripheral sides of the first roller and the second roller are both driven by belts, and the belts, the first roller and the second roller are all located in the adjustment bin.

[0013] Preferably, a plurality of tooth blocks are fixedly provided on the inner circumferential side surface of the external bin, a driving gear is fixedly installed on the circumferential side surface of the external connecting shaft, a follower gear is fixedly installed on the circumferential side surface of the extension shaft, and the tooth blocks and the driving gear are meshed with the follower gear.

[0014] Preferably, the trigger assembly comprises a telescopic tube arranged at one end of the extension shaft, an inner cavity is defined in the telescopic tube, a telescopic block is slidably connected to the inner cavity, and the telescopic block is slidably matched with the inner cavity.

[0015] Preferably, the lower surface of the audio playback device includes an audio switching button, the side surface of the external compartment is provided with a through groove, the position of the through groove is adapted to the audio switching button, a return spring is fixedly mounted on a surface inside the inner cavity, and one end of the return spring is connected to the telescopic block.

[0016] Preferably, a positioning rod is fixedly connected to the circumferential side of the extension shaft, a positioning groove is opened on the inner circumferential side of the external bin, one end of the positioning rod is slidably matched with the positioning groove, the cross-sectional shape of the positioning groove is a convex shape, and the shape of the positioning rod is adapted to the positioning groove.

[0017] Preferably, a rotating plate is hinged on one surface of the publicity frame plate, one end of the rotating plate is fixedly connected to an outer frame plate, the outer frame plate is rotatably matched with the publicity frame plate through the rotating plate, a number of lighting beads are installed on both side surfaces inside the publicity frame plate, and a publicity paper placement rack is fixedly installed on the side surface of the second shaft tube.

[0018] Preferably, a lifting rail plate is fixedly installed on the rear surface of the publicity frame plate, a lifting groove is opened on the lifting rail plate, a lifting slider is slidably installed inside the lifting groove, a screw hole is opened on the lifting slider, a threaded rod is fixedly installed inside the lifting groove, the threaded rod cooperates with the lifting slider thread through the screw hole, and a lifting rocker is fixedly connected to one end of the threaded rod.

[0019] Preferably, a cross bar is fixedly mounted on one surface of the lifting slider, both ends of the cross bar are fixedly connected to support frames, a bottom groove is formed on the lower surface of the support frame, and moving wheels are mounted inside the bottom groove.

[0020] Preferably, a display slot is provided on the outer frame plate, an LED transparent screen is arranged in the display slot, a wireless signal receiving module and a screen control device are included on the outer frame plate, and the screen control device is electrically connected to the LED transparent screen.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] (1) The present invention sets a publicity frame with a first shaft cylinder and a second shaft cylinder, and winds the rule of law publicity page to be displayed on the second reel in the second shaft cylinder. The publicity page passes through the background switching groove and is laid flat on the publicity frame, and is wound on the first reel along the background winding groove. When it is necessary to switch the situational drama content on the publicity page, the switching crank can be rotated. At this time, the second roller can drive the first roller to rotate through the belt, and then drive the first reel to wind up the current page to achieve the effect of page changing. In addition, the device installs an audio playback device on the publicity frame for playing audio matching the situational drama, and installs an audio playback device with an audio switching button in the protective shell. The audio switching button is connected via Bluetooth. It is connected to the audio playback device, and a gear block, a driving gear and a follower gear are installed in the external compartment. When the switching crank is rotated, the first connecting shaft can drive the driving gear on the external shaft to rotate, and then drive the follower gear to rotate in a circle around the external shaft. When it rotates to the slot position, the telescopic block will extend from the slot under the action of the reset spring, and then the audio switching button will be pressed once to achieve the effect of switching the audio. The sizes of the driving gear and the follower gear can be customized according to the length of the promotional page to ensure that the follower gear rotates a certain number of times to reach the slot to switch a promotional page. In this way, the background audio can be played correctly every time the page is switched, and no manual operation is required, which is more convenient.

[0023] (2) The present invention provides a lifting rail plate with a support frame, and drives the threaded rod to rotate by shaking the lifting rocker, so that the threaded rod and the lifting slider are threadedly matched, so that the lifting slider and the lifting rail plate can slide and match, thereby adjusting the height of the promotional device.

[0024] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present invention will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front perspective structural schematic diagram of the present invention;

[0026] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the present invention;

[0027] Figure 3 It is a bottom-up three-dimensional structural schematic diagram of the present invention;

[0028] Figure 4 This is a schematic diagram of the internal structure of the regulating chamber of the present invention;

[0029] Figure 5 This is a schematic diagram of the internal structure of the protective shell of the present invention;

[0030] Figure 6 It is a schematic diagram of the internal structure of the external warehouse of the present invention;

[0031] Figure 7 It is a schematic diagram of the internal structure of the telescopic cylinder of the present invention;

[0032] Figure 8 It is a right side view of the present invention;

[0033] Fig. 9 It is a schematic diagram of the specific structure of the outer frame plate of the present invention.

[0034] In the figure: 1. Promotional frame; 2. Illuminating lamp beads; 3. Rotating plate; 4. First shaft cylinder; 5. Audio playback device; 6. Outer frame; 7. Reset spring; 8. Protective shell; 9. External bin; 10. Adjustment bin; 11. Second shaft cylinder; 12. Promotional paper placement rack; 13. Inner cavity; 14. Background switching slot; 15. Lifting rail plate; 16. Threaded packaging cover; 17. Lifting slot; 18. Threaded rod; 19. Lifting slider; 20. Crossbar; 21. Lifting rocker; 22. Support frame; 23. Background rewinding slot; 2 4. Bottom groove; 25. Moving wheel; 26. First scroll; 27. Second scroll; 28. First connecting shaft; 29. ​​First roller; 30. Belt; 31. Second roller; 32. Switching crank; 33. Audio playback device; 34. Audio switching button; 35. Through groove; 36. Telescopic block; 37. Telescopic cylinder; 38. Driving gear; 39. External connecting shaft; 40. Extension shaft; 41. Follower gear; 42. Gear block; 43. Positioning groove; 44. Positioning rod; 45. Display groove; 46. LED transparent screen. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Embodiment 1:

[0037] See also Figure 1-Figure 9 As shown, a publicity display device comprises:

[0038] The display mechanism includes a publicity frame 1, a first shaft cylinder 4 and a second shaft cylinder 11, the first shaft cylinder 4 and the second shaft cylinder 11 are respectively fixedly mounted on the upper and lower ends of the publicity frame 1, an adjusting bin 10 is fixedly mounted on one side of the publicity frame 1, the first shaft cylinder 4 includes a first reel 26 inside, the second shaft cylinder 11 includes a second reel 27 inside, one end of the first reel 26 is fixedly connected to a first connecting shaft 28, a first roller 29 is fixedly mounted on the side of the first connecting shaft 28, a second roller 31 is mounted inside the adjusting bin 10, one end of the second roller 31 is connected to a switching crank 32, the ends of the first shaft cylinder 4 and the second shaft cylinder 11 away from the adjusting bin 10 are both screwed with a threaded packaging cover 16, and the first shaft cylinder 4 and the second shaft cylinder 11 are respectively provided with a background reeling groove 23 and a background switching groove 14;

[0039] The playback mechanism includes an audio playback device 5 arranged on the upper surface of the first shaft tube 4 and an external chamber 9 fixedly arranged on a side of the adjustment chamber 10. A protective shell 8 is fixedly installed on the upper surface of the external chamber 9. An audio playback device 33 is arranged in the protective shell 8. The external chamber 9 includes a driving component inside. The driving component includes an extension shaft 40 and an external connecting shaft 39 arranged at one end of the first connecting shaft 28. The extension shaft 40 includes a trigger component.

[0040] Specifically, the first roller 29 and the second roller 31 are both driven by belts 30 on their circumferential sides, and the belt 30 , the first roller 29 and the second roller 31 are all located in the adjustment chamber 10 .

[0041] Specifically, a plurality of gear blocks 42 are fixedly installed on the inner circumferential side of the external bin 9, a driving gear 38 is fixedly installed on the circumferential side of the external connecting shaft 39, and a follower gear 41 is fixedly installed on the circumferential side of the extension shaft 40. The gear blocks 42 and the driving gear 38 are meshed with the follower gear 41.

[0042] Specifically, the trigger assembly includes a telescopic tube 37 disposed at one end of the extension shaft 40 , an inner cavity 13 is defined in the telescopic tube 37 , a telescopic block 36 is slidably connected to the inner cavity 13 , and the telescopic block 36 slidably cooperates with the inner cavity 13 .

[0043] Specifically, the lower surface of the audio playback device 33 includes an audio switching button 34, and a through groove 35 is opened on the side of the external compartment 9. The position of the through groove 35 is adapted to the audio switching button 34. A return spring 7 is fixedly installed on a surface inside the inner cavity 13, and one end of the return spring 7 is connected to the telescopic block 36.

[0044] Specifically, a positioning rod 44 is fixedly connected to the side surface of the extension shaft 40, and a positioning groove 43 is opened on the inner side surface of the external bin 9. One end of the positioning rod 44 slides with the positioning groove 43. The cross-sectional shape of the positioning groove 43 is a convex shape. The shape of the positioning rod 44 is adapted to the positioning groove 43. By setting the positioning rod 44 and the positioning groove 43, one end of the positioning rod 44 slides in the positioning groove 43, which can ensure that the telescopic cylinder 37 is always facing the outside of the center of the circle, thereby achieving the effect of fixed-point pop-up and avoiding deviation.

[0045] As can be seen from the above, the device is provided with a propaganda frame 1 with a first shaft cylinder 4 and a second shaft cylinder 11, and the rule of law propaganda page to be displayed is wound on the second scroll 27 in the second shaft cylinder 11. The propaganda page passes through the background switching groove 14 and is laid flat on the propaganda frame 1, and is wound on the first scroll 26 along the background winding groove 23. When it is necessary to switch the situation drama content on the propaganda page, the switching crank 32 can be rotated. At this time, the second roller 31 can drive the first roller 29 to rotate through the belt 30, and then drive the first scroll 26 to wind up the current page to achieve the effect of page changing. In addition, the device installs an audio playback device 5 on the propaganda frame 1 for playing audio that matches the situation drama, and installs an audio playback device 33 with an audio switching button 34 in the protective shell 8. The audio switching button 34 is connected via Bluetooth It is connected to the audio playback device 5, and a gear block 42, a driving gear 38 and a follower gear 41 are installed in the external compartment 9. When the switching crank 32 is rotated, the first connecting shaft 28 can drive the driving gear 38 on the external connecting shaft 39 to rotate, and then drive the follower gear 41 to rotate in a circle around the external connecting shaft 39. When it rotates to the position of the groove 35, the telescopic block 36 will extend from the groove 35 under the action of the reset spring 7, and then the audio switching button 34 will be pressed once to achieve the effect of switching the audio. The sizes of the driving gear 38 and the follower gear 41 can be customized according to the length of the promotional page to ensure that the follower gear 41 rotates a certain number of times to reach the groove 35 and switches a promotional page. In this way, the background audio can be played correctly each time the page is switched, and no manual operation is required, which is more convenient.

[0046] Specifically, a rotating plate 3 is hinged on one surface of the publicity frame 1, and an outer frame plate 6 is fixedly connected to one end of the rotating plate 3. The outer frame plate 6 rotates with the publicity frame 1 through the rotating plate 3. A number of lighting beads 2 are installed on both sides of the inside of the publicity frame 1. A publicity paper placement rack 12 is fixedly installed on the side of the second shaft tube 11. The arrangement of the lighting beads 2 can provide lighting measures for the content of the publicity page, and legal provisions can also be placed on the publicity paper placement rack 12. When the corresponding content is explained, the relevant legal provisions can be distributed to the audience to facilitate the audience to further understand it.

[0047] Specifically, a lifting rail plate 15 is fixedly installed on the rear surface of the promotional frame plate 1, and a lifting groove 17 is opened on the lifting rail plate 15. A lifting slider 19 is slidably installed inside the lifting groove 17, and a screw hole is opened on the lifting slider 19. A threaded rod 18 is fixedly installed inside the lifting groove 17. The threaded rod 18 is threadedly matched with the lifting slider 19 through the screw hole, and one end of the threaded rod 18 is fixedly connected to a lifting rocker 21.

[0048] Specifically, a cross bar 20 is fixedly installed on one surface of the lifting slider 19, and both ends of the cross bar 20 are fixedly connected to support frames 22. A bottom groove 24 is opened on the lower surface of the support frame 22, and a moving wheel 25 is installed inside the bottom groove 24.

[0049] As can be seen from the above, the device is provided with a lifting rail plate 15 with a support frame 22, and the threaded rod 18 is driven to rotate by shaking the lifting rocker 21, and then the threaded rod 18 is threadedly matched with the lifting slider 19, so that the lifting slider 19 can slide and match with the lifting rail plate 15, thereby adjusting the height of the promotional device.

[0050] Specifically, a display slot 45 is provided on the outer frame plate 6 , and an LED transparent screen 46 is arranged in the display slot 45 . The outer frame plate 6 includes a wireless signal receiving module and a screen control device, and the screen control device is electrically connected to the LED transparent screen 46 .

[0051] As can be seen from the above, an LED transparent screen 46 is installed on the outer frame plate 6. The LED transparent screen 46 realizes image display by controlling the on and off of the LED module. During the display process, when current passes through the LED module, the LED wick emits light and displays the corresponding color. When the current is disconnected, the LED lamp beads stop emitting light. At this time, the screen is in a transparent state. Through different on and off arrangements and combinations, various patterns, texts and dynamic effects can be displayed. The specific displayed content is realized by the operator using the terminal to send a control signal to the wireless signal receiving module. When displaying the scenario page, in order to let the audience understand the case situation more specifically and intuitively, it is generally necessary to match it with corresponding specific data. This type of data follows the formulation of laws and regulations and changes in actual conditions, and the displayed paper cannot be easily modified. By setting the data content in the form of a transparent screen, it can not block the displayed content while being easy to modify at any time. It only needs to display data information, and there is no need to edit complex images. The requirements for technical difficulty and work intensity are relatively low.

[0052] The standard parts used in the present invention can all be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0053] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0057] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A publicity display device, characterized in that: include: The display mechanism comprises a publicity frame (1), a first shaft cylinder (4) and a second shaft cylinder (11), wherein the first shaft cylinder (4) and the second shaft cylinder (11) are respectively fixedly mounted at the upper and lower ends of the publicity frame (1), an adjusting bin (10) is fixedly mounted on one side of the publicity frame (1), the first shaft cylinder (4) comprises a first scroll (26) inside, the second shaft cylinder (11) comprises a second scroll (27) inside, one end of the first scroll (26) is fixedly connected to a first arm A connecting shaft (28), a first roller shaft (29) is fixedly mounted on the circumferential side surface of the first connecting shaft (28), a second roller shaft (31) is mounted inside the regulating chamber (10), one end of the second roller shaft (31) is connected to a switching crank (32), a threaded sealing cover (16) is screwed to one end of the first shaft cylinder (4) and the second shaft cylinder (11) away from the regulating chamber (10), and a background reeling groove (23) and a background switching groove (14) are respectively provided on the first shaft cylinder (4) and the second shaft cylinder (11); A playback mechanism, the playback mechanism comprising an audio playback device (5) arranged on the upper surface of a first shaft cylinder (4) and an external chamber (9) fixedly arranged on a side of an adjustment chamber (10), a protective shell (8) fixedly installed on the upper surface of the external chamber (9), an audio playback device (33) arranged in the protective shell (8), a driving component included in the external chamber (9), the driving component comprising an extension shaft (40) and an external connecting shaft (39) arranged at one end of a first connecting shaft (28), and a trigger component included on the extension shaft (40).

2. A publicity and display device according to claim 1, characterized in that: The first roller (29) and the second roller (31) are both driven by belts (30) on their circumferential sides; the belt (30), the first roller (29) and the second roller (31) are all located in the adjustment bin (10).

3. A publicity and display device according to claim 1, characterized in that: A plurality of tooth blocks (42) are fixedly arranged on the inner circumferential side surface of the external bin (9), a driving gear (38) is fixedly installed on the circumferential side surface of the external connecting shaft (39), and a follower gear (41) is fixedly installed on the circumferential side surface of the extension shaft (40), and the tooth blocks (42) and the driving gear (38) are both meshed with the follower gear (41).

4. A publicity and display device according to claim 1, characterized in that: The trigger assembly comprises a telescopic tube (37) arranged at one end of an extension shaft (40), an inner cavity (13) is provided in the telescopic tube (37), a telescopic block (36) is slidably connected inside the inner cavity (13), and the telescopic block (36) is slidably matched with the inner cavity (13).

5. A publicity and display device according to claim 4, characterized in that: The lower surface of the audio playback device (33) includes an audio switching button (34), the peripheral side of the external compartment (9) is provided with a through groove (35), the position of the through groove (35) is adapted to the audio switching button (34), a return spring (7) is fixedly mounted on a surface inside the inner cavity (13), and one end of the return spring (7) is connected to the telescopic block (36).

6. A publicity and display device according to claim 1, characterized in that: A positioning rod (44) is fixedly connected to the peripheral side of the extension shaft (40), and a positioning groove (43) is provided on the internal peripheral side of the external bin (9). One end of the positioning rod (44) is slidably matched with the positioning groove (43), and the cross-sectional shape of the positioning groove (43) is a convex shape. The shape of the positioning rod (44) is adapted to the positioning groove (43).

7. A publicity and display device according to claim 1, characterized in that: A rotating plate (3) is hingedly connected to one surface of the publicity frame plate (1); one end of the rotating plate (3) is fixedly connected to an outer frame plate (6); the outer frame plate (6) is rotatably matched with the publicity frame plate (1) through the rotating plate (3); a plurality of lighting lamp beads (2) are installed on both side surfaces inside the publicity frame plate (1); and a publicity paper placement rack (12) is fixedly installed on the side surface of the second shaft tube (11).

8. A publicity and display device according to claim 1, characterized in that: A lifting rail plate (15) is fixedly installed on the rear surface of the publicity frame plate (1), a lifting groove (17) is provided on the lifting rail plate (15), a lifting slider (19) is slidably installed inside the lifting groove (17), a screw hole is provided on the lifting slider (19), a threaded rod (18) is fixedly installed inside the lifting groove (17), the threaded rod (18) is threadedly matched with the lifting slider (19) through the screw hole, and one end of the threaded rod (18) is fixedly connected to a lifting rocker (21).

9. A publicity and display device according to claim 8, characterized in that: A cross bar (20) is fixedly mounted on one surface of the lifting slider (19), and both ends of the cross bar (20) are fixedly connected to a support frame (22). A bottom groove (24) is formed on the lower surface of the support frame (22), and a moving wheel (25) is mounted inside the bottom groove (24).

10. A publicity and display device according to claim 1, characterized in that: The outer frame plate (6) is provided with a display slot (45), an LED transparent screen (46) is arranged in the display slot (45), the outer frame plate (6) comprises a wireless signal receiving module and a screen control device, and the screen control device is electrically connected to the LED transparent screen (46).

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