Propaganda device and use method thereof

Abstract

The invention relates to the technical field of bulletin boards, and discloses a propaganda device and a use method thereof, and solves the problems that the content displayed by a bulletin board is relatively single and the change frequency is relatively low. The propaganda device comprises a propaganda shell, a supporting ring fixedly sleeves the outer part of the propaganda shell, a control box is arranged at the bottom of the supporting ring in a contact manner, and a base is arranged below the control box; the base and the supporting ring are connected through a plurality of supporting plates, the control box is provided with positioning units matched with the supporting plates, first rectangular holes are formed in the inner walls of the two sides of the propaganda shell correspondingly, transparent plates are fixedly connected into the first rectangular holes, a first guide roller is arranged in the propaganda shell, and the two sides of the first guide roller are rotationally connected with first supporting parts; the bottom end of the first supporting part is fixedly connected with the base; different publicity posters for ideological and political education are displayed at different time, the display content is enriched, and the situation that the display content is not changed for a long time and lacks attraction is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of propaganda columns, and in particular relates to a propaganda device and a use method thereof. Background Art

[0002] The publicity effects of the publicity boards currently used in schools are mostly not very ideal. The main reason is that the content displayed in the publicity boards is relatively simple and changes rarely, which makes them lack of appeal and difficult to promote and use.

[0003] Therefore, in order to solve the above problems, a related facility that better meets the usage requirements is needed. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a publicity device and a method of using the same, which effectively solves the problem that the content displayed on the publicity column in the above background technology is relatively simple and has a low frequency of change.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a promotional device, comprising a promotional shell, an external fixed sleeve of the promotional shell is provided with a support ring, the bottom contact of the support ring is provided with a control box, a base is provided below the control box, the base and the support ring are connected by a plurality of support plates, the control box is equipped with a positioning unit adapted to the support plate, first rectangular holes are respectively provided on the inner walls on both sides of the promotional shell, a transparent plate is fixedly connected in the first rectangular hole, a first guide roller is provided in the promotional shell, first support parts are rotatably connected on both sides of the first guide roller, and the bottom end of the first support part is fixedly connected to the base, the promotional shell is equipped with an assembly moving structure for driving the promotional poster to pass through the top of the first guide roller, the control box is equipped with a winding mechanism adapted to the first guide roller, and the winding structure is used to drive the promotional poster to move.

[0006] Preferably, the assembled moving structure includes a movable seat arranged above the first guide roller, the publicity shell is equipped with a translation part adapted to the movable seat, first servo motors are fixedly installed at both ends of the movable seat, the output end of the first servo motor is fixedly connected to the first screw rod, a first lifting plate and a second lifting plate are provided in the control box, the second lifting plate is located above the first lifting plate, the second lifting plate is equipped with a pressing unit adapted to the first lifting plate, one end of the first lifting plate is connected to one of the first screw rods in a threaded manner, the other end of the first lifting plate is connected to another first screw rod in a sliding manner, one end of the second lifting plate is connected to one of the first screw rods in a threaded manner, the other end of the second lifting plate is connected to another first screw rod in a sliding manner, and the connection modes of the first lifting plate and the second lifting plate to the same first screw rod are inconsistent.

[0007] Preferably, the pressing unit includes a pressing plate arranged between the first lifting plate and the second lifting plate, a plurality of movable columns are fixedly connected to the top of the pressing plate, the movable columns pass through the second lifting plate, the top ends of the movable columns are fixedly connected to a fixed plate located above the second lifting plate, and the fixed plate and the second lifting plate are connected by a tension spring.

[0008] Preferably, the translation member includes a first support block fixedly mounted on the bottom of the movable seat, a second screw rod is rotatably connected in the promotional shell, the second screw rod and the first support block are connected in a threaded manner, a second servo motor is fixedly mounted on the promotional shell, and the output end of the second servo motor is fixedly connected to the second screw rod, a second support block is fixedly connected to the bottom of the movable seat, a guide column passes through the second support block, and both ends of the guide column are respectively fixedly connected to the inner wall of the promotional shell.

[0009] Preferably, a reinforcement plate is provided in the control box, and the bottom ends of the two first screw rods are rotatably connected to the two ends of the reinforcement plate respectively.

[0010] Preferably, the winding mechanism includes two winding rollers arranged in a control box, the winding roller is equipped with a detachable assembly for fixing the promotional poster, and the two winding rollers are respectively provided with a second guide roller on the side close to each other for guiding the promotional poster, and the two ends of the second guide roller are respectively rotatably connected to the second support part, the second support part is fixedly connected to the bottom of the support ring, and the two ends of the winding roller are respectively contacted with a mounting shaft, and the external rotating sleeve of the mounting shaft is provided with a third support part, and the third support part is fixedly connected to the bottom of the support ring, and the two ends of the winding roller are respectively provided with a clamping groove, and the mounting shaft is provided with a first sliding groove, and a clamping block is slidably provided in the first sliding groove, one end of the clamping block is connected to the inner wall of the first sliding groove by a compression spring, and the other end of the clamping block is located in the corresponding clamping groove, and a second rectangular hole is provided on the inner wall of the first sliding groove, and a handle is fixedly connected to the clamping block, and the handle passes through the corresponding second rectangular hole, and the control box is equipped with a driving member for driving the mounting shaft to rotate.

[0011] Preferably, the driving member includes two third servo motors fixedly mounted at the bottom of the support ring, the output end of the third servo motor is fixedly connected to a first damping disk, a second damping disk is contacted on a side of the first damping disk away from the third servo motor, and the two second damping disks are respectively fixedly connected to two corresponding mounting shafts.

[0012] Preferably, the disassembly and assembly part includes a accommodating groove opened on the winding roller, a second sliding groove is opened on the inner wall of the accommodating groove, a pressing strip is provided in the second sliding groove, both ends of the pressing strip are respectively fixedly connected to a third support block, a third screw rod passes through the third support block, one end of the third screw rod and the winding roller are fixedly connected by a connecting plate, the other end of the third screw rod is sleeved with a nut, and the nut is located on the side of the third support block away from the connecting plate.

[0013] Preferably, the positioning unit includes a support sleeve slidably sleeved on the outside of the support plate, and the bottom end of the support sleeve is fixedly connected to the bottom inner wall of the control box, the support plate is provided with a socket located below the control box, a plug plate is slidably provided in the socket, an iron ring is provided on the outer sliding sleeve of the plug plate, the iron ring is fixedly connected to the bottom of the control box, a magnet block is fixedly connected to one end of the plug plate away from the socket, and the magnet block and the iron ring are magnetically attracted to each other, guide grooves are respectively provided on both sides of the support plate, guide blocks are slidably provided in the guide grooves, and the guide blocks are fixedly connected to the inner wall of the support sleeve.

[0014] The present invention also provides a method for using the publicity device, which includes the following steps: Step 1: The promotional poster is passed over the first guide roller by assembling the movable structure so that the promotional surfaces on both sides of the promotional poster face the two transparent plates respectively; Step 2: Display the promotional poster in the promotional shell through a transparent plate; Step 3: As the usage time increases, the poster is driven to move by the reeling mechanism, the propaganda content on the side of the poster facing the transparent plate is changed, and different ideological and political education posters are displayed at different times.

[0015] Compared with the prior art, the present invention has the following beneficial effects: By assembling the movable structure, the propaganda poster is passed over the top of the first guide roller so that the propaganda surfaces on both sides of the propaganda poster face the two transparent plates respectively, and the propaganda poster in the propaganda shell is displayed through the transparent plates. As the use time increases, the propaganda poster is driven to move by the winding mechanism to change the propaganda content of the poster facing the transparent plate side, and different propaganda posters for ideological and political education are displayed at different times, thereby enriching the display content and avoiding the display content from remaining unchanged for a long time and lacking in appeal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached picture: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure inside the promotion housing and the control box of the present invention; Figure 3 It is a schematic structural diagram of a cutaway support sleeve of the present invention; Figure 4 It is a structural schematic diagram of the assembled mobile structure of the present invention; Figure 5 For the present invention Figure 4 A local enlarged schematic diagram of the middle A; Figure 6 It is a structural schematic diagram of the driving member of the present invention; Figure 7 This is a schematic diagram of the structure of the split block and the mounting shaft of the present invention; Figure 8 It is a structural schematic diagram of the end portion of the winding roller of the present invention; Fig. 9 It is a schematic structural diagram of the end of the pressing strip of the present invention.

[0018] In the figure: 1, publicity shell; 2, support ring; 3, control box; 4, base; 5, support plate; 6, first rectangular hole; 7, transparent plate; 8, first guide roller; 9, first support part; 10, winding roller; 11, second guide roller; 12, second support part; 13, publicity poster; 14, movable seat; 15, first servo motor; 16, first screw rod; 17, first lifting plate; 18, second lifting plate; 19, pressing plate; 20, movable column; 21, fixed plate; 22, tension spring; 23, first support block; 24, second screw rod; 25, second servo motor; 26, second support Support block; 27, guide column; 28, reinforcement plate; 29, installation shaft; 30, third support part; 31, slot; 32, block; 33, first slide slot; 34, compression spring; 35, second rectangular hole; 36, handle; 37, third servo motor; 38, first damping disk; 39, second damping disk; 40, accommodating groove; 41, second slide slot; 42, pressing strip; 43, third support block; 44, third screw rod; 45, connecting plate; 46, nut; 47, socket; 48, support sleeve; 49, guide slot; 50, guide block; 51, iron ring; 52, plug plate; 53, magnet block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Embodiment 1, by Figure 1 and Figure 2The present invention includes a promotional shell 1, an external fixed sleeve of the promotional shell 1 is provided with a support ring 2, the bottom contact of the support ring 2 is provided with a control box 3, the promotional shell 1 is a cavity structure with an opening at the bottom, the control box 3 is a cavity structure with an opening at the top, a base 4 is provided below the control box 3, the base 4 and the support ring 2 are connected by a plurality of support plates 5, the control box 3 is equipped with a positioning unit adapted to the support plate 5, first rectangular holes 6 are respectively provided on the inner walls on both sides of the promotional shell 1, a transparent plate 7 is fixedly connected in the first rectangular hole 6, a first guide roller 8 is provided in the promotional shell 1, both sides of the first guide roller 8 are rotatably connected with a first support part 9, and the bottom end of the first support part 9 is fixedly connected to the base 4, the promotional shell 1 is equipped with a The promotional poster 13 passes through the assembly moving structure above the first guide roller 8, and the control box 3 is equipped with a winding mechanism compatible with the first guide roller 8, and the winding structure is used to drive the promotional poster 13 to move; the promotional poster 13 is passed through the first guide roller 8 through the assembly moving structure, so that the two sides of the promotional surfaces of the promotional poster 13 are respectively facing the two transparent plates 7, and the promotional poster 13 in the promotional shell 1 is displayed through the transparent plates 7. As the use time increases, the promotional poster 13 is driven to move by the winding mechanism to change the promotional content of the promotional poster 13 facing the transparent plate 7. Different ideological and political education promotional posters 13 are displayed at different times, which enriches the display content and avoids the display content from being unchanged for a long time and lacking in attractiveness.

[0021] Embodiment 2, based on embodiment 1, Figure 2 , Figure 4 and Figure 5It is given that the assembled moving structure includes a movable seat 14 arranged above the first guide roller 8, the publicity shell 1 is equipped with a translation part adapted to the movable seat 14, first servo motors 15 are fixedly installed at both ends of the movable seat 14, the output end of the first servo motor 15 is fixedly connected with a first screw rod 16, a first lifting plate 17 and a second lifting plate 18 are arranged in the control box 3, the second lifting plate 18 is located above the first lifting plate 17, the second lifting plate 18 is equipped with a pressing unit adapted to the first lifting plate 17, one end of the first lifting plate 17 is connected to one of the first screw rods 16 in a threaded connection, the other end of the first lifting plate 17 is connected to another first screw rod 16 in a sliding connection, one end of the second lifting plate 18 is connected to one of the first screw rods 16 in a threaded connection, the other end of the second lifting plate 18 is connected to another first screw rod 16 in a sliding connection, and the first lifting plate 17 and the second lifting plate 18 are connected to the same first screw rod 16 in different ways, and the pressing unit It includes a pressing plate 19 arranged between the first lifting plate 17 and the second lifting plate 18, a plurality of movable columns 20 are fixedly connected to the top of the pressing plate 19, the movable columns 20 penetrate the second lifting plate 18, the top of the movable columns 20 is fixedly connected to a fixed plate 21 located above the second lifting plate 18, the fixed plate 21 and the second lifting plate 18 are connected by a tension spring 22, the translation member includes a first support block 23 fixedly installed at the bottom of the movable seat 14, a second screw rod 24 is rotatably connected in the publicity shell 1, the connection mode of the second screw rod 24 and the first support block 23 is a threaded connection, a second servo motor 25 is fixedly installed in the publicity shell 1, and the output end of the second servo motor 25 is fixedly connected to the second screw rod 24, a second support block 26 is fixedly connected to the bottom of the movable seat 14, a guide column 27 penetrates the second support block 26, and the two ends of the guide column 27 are respectively fixedly connected to the inner wall of the publicity shell 1, a reinforcing plate 28 is provided in the control box 3, and the bottom ends of the two first screw rods 16 are respectively rotatably connected to the two ends of the reinforcing plate 28; The positioning relationship between the control box 3 and the support plate 5 is released by the positioning unit, and the staff drives the control box 3 to move downward relative to the support plate 5 and the base 4, so that the first lifting plate 17 and the second lifting plate 18 are exposed. The staff places the end of the propaganda poster 13 between the first lifting plate 17 and the pressing plate 19, and drives the corresponding first screw rod 16 to rotate through the first servo motor 15, so that the first screw rod 16 drives the second lifting plate 18 to move downward, reducing the distance between the second lifting plate 18 and the first lifting plate 17, and the pressing plate 19 contacts the propaganda poster 13. As the second lifting plate 18 continues to move downward, the second lifting plate 18 moves downward relative to the pressing plate 19, and the tension spring 22 is in a tensioned state. The tension spring 22 applies downward pressure to the fixed plate 21, the movable column 20 and the pressing plate 19, so that the pressing plate 19 and the first lifting plate 17 clamp the end of the propaganda poster 13, and the two first servo motors 15 simultaneously drive the two first screw rods 16 to rotate, so that the first lifting plate 17 and The second lifting plate 18 moves up at the same time, so that the end of the propaganda poster 13 can be moved up. When the end of the propaganda poster 13 moves to the top of the first guide roller 8, the second servo motor 25 drives the second screw rod 24 to rotate, and the second screw rod 24 drives the first support block 23, the movable seat 14 and the second support block 26 to slide relative to the guide column 27 and the propaganda shell 1, so that the first lifting plate 17 and the second lifting plate 18 move horizontally, and finally the end of the propaganda poster 13 passes through the top of the first guide roller 8, and then the first servo motor 15 drives the first screw rod 16 to rotate in the opposite direction, so that the first lifting plate 17 and the second lifting plate 18 move down, and finally the first lifting plate 17 and the second lifting plate 18 descend into the control box 3 again, so that the end of the propaganda poster 13 can bypass the top of the first guide roller 8, which is convenient for installing the propaganda poster 13 in the propaganda shell 1. Through the design of the reinforcement plate 28, the bottom ends of the two first screw rods 16 are supported to reduce the possibility of tilting and shaking of the first screw rods 16.

[0022] Embodiment 3, based on embodiment 1, Figure 2 , Figure 6 , Figure 7 , Figure 8 and Fig. 9The winding mechanism includes two winding rollers 10 arranged in the control box 3, and the winding rollers 10 are equipped with detachable parts for fixing the promotional posters 13. The sides of the two winding rollers 10 that are close to each other are respectively provided with second guide rollers 11 for guiding the promotional posters 13. The two ends of the second guide rollers 11 are respectively rotatably connected with the second support parts 12, and the second support parts 12 are fixedly connected to the bottom of the support ring 2. The two ends of the winding roller 10 are respectively contacted with mounting shafts 29, and the outer rotation sleeve of the mounting shaft 29 is provided with a third support part 30, and the third support part 30 is fixedly connected to the bottom of the support ring 2. The two ends of the winding roller 10 are respectively provided with card grooves 31, and the mounting shaft 29 is provided with a first slide groove 33. A card block 32 is slidably provided in the first slide groove 33. One end of the card block 32 is connected to the inner wall of the first slide groove 33 by a compression spring 34, and the other end of the card block 32 is located in the corresponding card groove 31. A second rectangular hole 35 is provided on the inner wall of the first slide groove 33, and a handle is fixedly connected to the card block 32 36, and the handle 36 passes through the corresponding second rectangular hole 35, the control box 3 is equipped with a driving member for driving the installation shaft 29 to rotate, the driving member includes two third servo motors 37 fixedly installed at the bottom of the support ring 2, the output end of the third servo motor 37 is fixedly connected with a first damping disk 38, the first damping disk 38 is contacted with a second damping disk 39 on the side away from the third servo motor 37, and the two second damping disks 39 are respectively fixedly connected with the two corresponding installation shafts 29, the disassembly and assembly parts include a receiving groove 40 opened on the winding roller 10, a second slide groove 41 is opened on the inner wall of the receiving groove 40, a pressing strip 42 is arranged in the second slide groove 41, and the two ends of the pressing strip 42 are respectively fixedly connected with a third support block 43, a third screw rod 44 passes through the third support block 43, one end of the third screw rod 44 is fixedly connected to the winding roller 10 through a connecting plate 45, and the other end of the third screw rod 44 is sleeved with a nut 46, and the nut 46 is located on the side of the third support block 43 away from the connecting plate 45; The end of the promotional poster 13 is inserted into one of the receiving grooves 40, and the staff drives the nut 46 to rotate. The nut 46 pushes the third support block 43 and the pressing strip 42 to slide relative to the third screw rod 44 and the connecting plate 45, so that the end of the pressing strip 42 slides into the receiving groove 40. Finally, the pressing strip 42 presses the promotional poster 13 located in the receiving groove 40, so that the end of the promotional poster 13 is fixed on the winding roller 10, and the other redundant promotional posters 13 are wound around the outside of the winding roller 10, so that the promotional poster 13 can be wound on the winding roller 10, and then the staff passes the end of the promotional poster 13 away from the winding roller 10 from under one of the second guide rollers 11, guides it through the second guide roller 11, and then drives the promotional poster 13 to pass from above the first guide roller 8 through the assembled moving structure, and then passes the end of the promotional poster 13 from under the other second guide roller 11. Similarly, the staff The end of the promotional poster 13 is fixedly connected to another winding roller 10, and the installation of the promotional poster 13 can be completed. The first damping disk 38 is driven to rotate by the third servo motor 37. The first damping disk 38 drives the second damping disk 39 and the installation shaft 29 to rotate through friction. The installation shaft 29 can drive the winding roller 10 to rotate through the block 32, so that the promotional poster 13 moves in the promotional shell 1. When the position of the promotional poster 13 is adjusted, one of the third servo motors 37 is still turned on, and the other third servo motor 37 is turned off. The third servo motor 37 drives the second damping disk 39 to rotate through the first damping disk 38. When the tension of the promotional poster 13 between the winding roller 10, the second guide roller 11 and the first guide roller 8 is at a preset value, the first damping disk 38 cannot drive the second damping disk 39 to rotate synchronously through friction, so that the promotional poster 13 can be tightened in the promotional shell 1 to avoid affecting the promotional effect.

[0023] Embodiment 4, based on embodiment 1, Figure 1 and Figure 3 It is given that the positioning unit includes a support sleeve 48 slidably sleeved on the outside of the support plate 5, and the bottom end of the support sleeve 48 is fixedly connected to the bottom inner wall of the control box 3, the support plate 5 is provided with a socket 47 located below the control box 3, a plug plate 52 is slidably provided in the socket 47, an iron ring 51 is slidably sleeved on the outside of the plug plate 52, the iron ring 51 is fixedly connected to the bottom of the control box 3, a magnet block 53 is fixedly connected to one end of the plug plate 52 away from the socket 47, and the magnet block 53 and the iron ring 51 are magnetically attracted to each other, guide grooves 49 are respectively provided on both sides of the support plate 5, a guide block 50 is slidably provided in the guide groove 49, and the guide block 50 is fixedly connected to the inner wall of the support sleeve 48; The magnet block 53 and the iron ring 51 are magnetically attracted to each other so that the end of the plug plate 52 is fixed in the socket 47. When the control box 3 needs to be driven downward, the staff drives the magnet block 53 and the plug plate 52 to move so that the magnet block 53 is no longer magnetically attracted to the iron ring 51, and the end of the plug plate 52 is separated from the socket 47, thereby releasing the fixed relationship between the control box 3 and the support plate 5. The staff drives the control box 3 and the support sleeve 48 to slide downward relative to the support plate 5, and the guide block 50 slides in the guide groove 49. Finally, the bottom of the guide block 50 contacts the bottom inner wall of the guide groove 49, and the control box 3 slides down to the preset position, so that the components originally located in the control box 3 are exposed, which is convenient for replacing the promotional poster 13.

[0024] A method for using publicity in this embodiment, using the publicity device as described above, includes the following steps: Step 1: The promotional poster 13 is passed through the first guide roller 8 by assembling the movable structure, so that the promotional surfaces on both sides of the promotional poster 13 face the two transparent plates 7 respectively; Step 2: Display the promotional poster 13 in the promotional housing 1 through the transparent plate 7; Step 3: As the usage time increases, the propaganda poster 13 is driven to move by the winding mechanism, the propaganda content of the propaganda poster 13 facing the transparent plate 7 is changed, and different ideological and political education propaganda posters 13 are displayed at different times.

[0025] Working principle: by assembling the moving structure, the propaganda poster 13 is passed through the top of the first guide roller 8, so that the propaganda surfaces on both sides of the propaganda poster 13 are respectively facing the two transparent plates 7, and the propaganda poster 13 in the propaganda housing 1 is displayed through the transparent plates 7. As the use time increases, the propaganda poster 13 is driven to move by the winding mechanism, and the propaganda content of the propaganda poster 13 facing the transparent plate 7 is changed. Different propaganda posters 13 for ideological and political education are displayed at different times, which enriches the display content and avoids the display content being unchanged for a long time and lacking in attractiveness. The positioning relationship between the control box 3 and the support plate 5 is released by the positioning unit, and the staff drives the control box 3 to move downward relative to the support plate 5 and the base 4, so that the first lifting plate 17 and the second lifting plate 18 are exposed. The staff places the end of the propaganda poster 13 between the first lifting plate 17 and the pressing plate 19, and drives the corresponding first screw rod 16 to rotate through the first servo motor 15, so that the first screw rod 16 drives the second lifting plate 18 to move downward, reducing the distance between the second lifting plate 18 and the first lifting plate 17, and the pressing plate 19 contacts the propaganda poster 13. As the second lifting plate 18 continues to move downward, the second lifting plate 18 moves downward relative to the pressing plate 19, and the tension spring 22 is in a tensioned state. The tension spring 22 applies downward pressure to the fixed plate 21, the movable column 20 and the pressing plate 19, so that the pressing plate 19 and the first lifting plate 17 clamp the end of the propaganda poster 13, and the two first servo motors 15 simultaneously drive the two first screw rods 16 to rotate, so that the first lifting plate 17 and The second lifting plate 18 moves up at the same time, so that the end of the propaganda poster 13 can be moved up. When the end of the propaganda poster 13 moves to the top of the first guide roller 8, the second servo motor 25 drives the second screw rod 24 to rotate, and the second screw rod 24 drives the first support block 23, the movable seat 14 and the second support block 26 to slide relative to the guide column 27 and the propaganda shell 1, so that the first lifting plate 17 and the second lifting plate 18 move in the horizontal direction, and finally the end of the propaganda poster 13 passes through the top of the first guide roller 8, and then the first servo motor 15 drives the first screw rod 16 to rotate in the opposite direction, so that the first lifting plate 17 and the second lifting plate 18 move down, and finally the first lifting plate 17 and the second lifting plate 18 are lowered into the control box 3 again, so that the end of the propaganda poster 13 can bypass the top of the first guide roller 8, which is convenient for installing the propaganda poster 13 in the propaganda shell 1. The bottom ends of the two first screw rods 16 are supported by the design of the reinforcement plate 28 to reduce the possibility of tilting and shaking of the first screw rod 16; The end of the poster 13 is inserted into one of the receiving grooves 40, and the staff drives the nut 46 to rotate. The nut 46 pushes the third support block 43 and the pressing strip 42 to slide relative to the third screw rod 44 and the connecting plate 45, so that the end of the pressing strip 42 slides into the receiving groove 40. Finally, the pressing strip 42 presses the poster 13 in the receiving groove 40, so that the end of the poster 13 is fixed on the winding roller 10, and other redundant posters 13 are wound around the outside of the winding roller 10, so that the poster 13 can be rolled up on the winding roller 10. , then the staff passes the end of the propaganda poster 13 away from the winding roller 10 from under one of the second guide rollers 11, guides it through the second guide roller 11, and then drives the propaganda poster 13 to pass from above the first guide roller 8 through the assembled moving structure, and then passes the end of the propaganda poster 13 from under the other second guide roller 11. Similarly, the staff fixes the end of the propaganda poster 13 to the other winding roller 10 to complete the installation of the propaganda poster 13. The first damping disk 38 is driven to rotate by the third servo motor 37. The first damping disk 38 drives the second damping disk 39 and the installation shaft 29 to rotate through the friction force. The installation shaft 29 can drive the winding roller 10 to rotate through the block 32, so that the propaganda poster 13 moves in the propaganda shell 1. When the position of the propaganda poster 13 is adjusted, one of the third servo motors 37 is still turned on, and the other third servo motor 37 is turned off. The third servo motor 37 drives the second damping disk 39 to rotate through the first damping disk 38. When the propaganda poster 13 is between the winding roller 10, the second guide roller 11 and the first guide roller 8 When the tension between the first damping disc 38 and the second damping disc 39 is at a preset value, the first damping disc 38 cannot drive the second damping disc 39 to rotate synchronously by friction, so that the promotional poster 13 is tightly held in the promotional housing 1 to avoid affecting the promotional effect. The staff drives the handle 36 and the block 32 to move relative to the mounting shaft 29, and the compression spring 34 is in a compressed state, so that the end of the block 32 is disengaged from the slot 31, and the restriction on the position of the winding roller 10 can be released. The staff drives the winding roller 10 to disengage from between the two adjacent mounting shafts 29, and the removal of the winding roller 10 is completed. The magnet block 53 and the iron ring 51 are magnetically attracted to each other so that the end of the plug plate 52 is fixed in the socket 47. When the control box 3 needs to be driven downward, the staff drives the magnet block 53 and the plug plate 52 to move so that the magnet block 53 is no longer magnetically attracted to the iron ring 51, and the end of the plug plate 52 is separated from the socket 47, thereby releasing the fixed relationship between the control box 3 and the support plate 5. The staff drives the control box 3 and the support sleeve 48 to slide downward relative to the support plate 5, and the guide block 50 slides in the guide groove 49. Finally, the bottom of the guide block 50 contacts the bottom inner wall of the guide groove 49, and the control box 3 slides down to the preset position, so that the components originally located in the control box 3 are exposed, which is convenient for replacing the promotional poster 13.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] 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 promotional device, comprising a promotional housing (1), characterized in that: The external fixed sleeve of the publicity shell (1) is provided with a support ring (2), the bottom of the support ring (2) is contacted with a control box (3), a base (4) is provided below the control box (3), the base (4) and the support ring (2) are connected via a plurality of support plates (5), the control box (3) is provided with a positioning unit adapted to the support plate (5), first rectangular holes (6) are respectively provided on the inner walls on both sides of the publicity shell (1), a transparent plate (7) is fixedly connected in the first rectangular hole (6), a first guide roller (8) is provided in the publicity shell (1), both sides of the first guide roller (8) are rotatably connected with a first support part (9), and the bottom end of the first support part (9) is fixedly connected to the base (4), the publicity shell (1) is provided with an assembly moving structure for driving the publicity poster (13) to pass through the top of the first guide roller (8), the control box (3) is provided with a reeling mechanism adapted to the first guide roller (8), and the reeling structure is used to drive the publicity poster (13) to move.

2. A promotional device according to claim 1, characterized in that: The assembly moving structure comprises a movable seat (14) arranged above the first guide roller (8); the publicity housing (1) is provided with a translation member adapted to the movable seat (14); first servo motors (15) are fixedly installed at both ends of the movable seat (14); the output end of the first servo motor (15) is fixedly connected to a first screw rod (16); a first lifting plate (17) and a second lifting plate (18) are provided in the control box (3); the second lifting plate (18) is located above the first lifting plate (17); and the second lifting plate (18) is provided with a translation member adapted to the first lifting plate (17). The pressing unit is characterized in that one end of the first lifting plate (17) is connected to one of the first screw rods (16) by a threaded connection, and the other end of the first lifting plate (17) is connected to the other first screw rod (16) by a sliding connection. One end of the second lifting plate (18) is connected to one of the first screw rods (16) by a threaded connection, and the other end of the second lifting plate (18) is connected to the other first screw rod (16) by a sliding connection. The first lifting plate (17) and the second lifting plate (18) are connected to the same first screw rod (16) in different ways.

3. A promotional device according to claim 2, characterized in that: The pressing unit comprises a pressing plate (19) arranged between a first lifting plate (17) and a second lifting plate (18); a plurality of movable columns (20) are fixedly connected to the top of the pressing plate (19); the movable columns (20) penetrate the second lifting plate (18); the top ends of the movable columns (20) are fixedly connected to a fixed disk (21) located above the second lifting plate (18); the fixed disk (21) and the second lifting plate (18) are connected via a tension spring (22).

4. A promotional device according to claim 2, characterized in that: The translation member comprises a first support block (23) fixedly mounted on the bottom of the movable seat (14); a second screw rod (24) is rotatably connected in the publicity shell (1); the second screw rod (24) and the first support block (23) are connected in a threaded manner; a second servo motor (25) is fixedly mounted on the publicity shell (1); an output end of the second servo motor (25) is fixedly connected to the second screw rod (24); a second support block (26) is fixedly connected to the bottom of the movable seat (14); a guide column (27) passes through the second support block (26); and two ends of the guide column (27) are respectively fixedly connected to the inner wall of the publicity shell (1).

5. A promotional device according to claim 2, characterized in that: A reinforcing plate (28) is provided in the control box (3), and the bottom ends of the two first screw rods (16) are rotatably connected to the two ends of the reinforcing plate (28) respectively.

6. A promotional device according to claim 1, characterized in that: The winding mechanism comprises two winding rollers (10) arranged in a control box (3), the winding rollers (10) being provided with a disassembly and assembly part for fixing a propaganda poster (13), a second guide roller (11) for guiding the propaganda poster (13) being provided on the adjacent sides of the two winding rollers (10), the two ends of the second guide rollers (11) being rotatably connected to a second support portion (12), the second support portion (12) being fixedly connected to the bottom of the support ring (2), the two ends of the winding rollers (10) being respectively contacted with a mounting shaft (29), the outer rotatable sleeve of the mounting shaft (29) being provided with a third support portion (30), the third support portion (30) and the support ring (2) being rotatably connected to each other. The bottom is fixedly connected, and the two ends of the winding roller (10) are respectively provided with a card slot (31), and the mounting shaft (29) is provided with a first slide groove (33), and a card block (32) is slidably provided in the first slide groove (33), and one end of the card block (32) and the inner wall of the first slide groove (33) are connected by a compression spring (34), and the other end of the card block (32) is located in the corresponding card slot (31), and a second rectangular hole (35) is provided on the inner wall of the first slide groove (33), and a handle (36) is fixedly connected to the card block (32), and the handle (36) passes through the corresponding second rectangular hole (35), and the control box (3) is installed with a driving member for driving the mounting shaft (29) to rotate.

7. A promotional device according to claim 6, characterized in that: The driving member comprises two third servo motors (37) fixedly mounted on the bottom of the support ring (2); an output end of the third servo motor (37) is fixedly connected to a first damping disk (38); a side of the first damping disk (38) away from the third servo motor (37) is contacted with a second damping disk (39); and the two second damping disks (39) are respectively fixedly connected to two corresponding mounting shafts (29).

8. A promotional device according to claim 6, characterized in that: The disassembly component comprises a receiving groove (40) formed on the winding roller (10), a second slide groove (41) formed on the inner wall of the receiving groove (40), a pressing strip (42) formed in the second slide groove (41), and a third support block (43) fixedly connected to both ends of the pressing strip (42), a third screw rod (44) passing through the third support block (43), one end of the third screw rod (44) and the winding roller (10) being fixedly connected via a connecting plate (45), and a nut (46) being sleeved on the other end of the third screw rod (44), and the nut (46) being located on a side of the third support block (43) away from the connecting plate (45).

9. A promotional device according to claim 1, characterized in that: The positioning unit comprises a support sleeve (48) slidably sleeved on the outside of the support plate (5), and the bottom end of the support sleeve (48) is fixedly connected to the inner wall of the bottom of the control box (3); the support plate (5) is provided with a plug hole (47) located below the control box (3); a plug plate (52) is slidably arranged in the plug hole (47); an iron ring (51) is slidably sleeved on the outside of the plug plate (52); the iron ring (51) is fixedly connected to the bottom of the control box (3); a magnet block (53) is fixedly connected to one end of the plug plate (52) away from the plug hole (47), and the magnet block (53) and the iron ring (51) are magnetically attracted to each other; guide grooves (49) are respectively provided on both sides of the support plate (5); a guide block (50) is slidably arranged in the guide groove (49), and the guide block (50) is fixedly connected to the inner wall of the support sleeve (48).

10. A method for using a promotional device, using the promotional device according to claim 1, characterized in that: The following steps are involved: Step 1: by assembling the movable structure, the promotional poster (13) is passed through the top of the first guide roller (8), so that the promotional surfaces on both sides of the promotional poster (13) face the two transparent plates (7) respectively; Step 2: displaying the promotional poster (13) in the promotional housing (1) through the transparent plate (7); Step 3: As the usage time increases, the propaganda poster (13) is driven to move by the reeling mechanism, and the propaganda content of the propaganda poster (13) facing the transparent plate (7) is changed, so that different ideological and political education propaganda posters (13) are displayed at different times.

Images