Propaganda device for education

Abstract

The invention relates to the technical field of propaganda tools, and provides an educational propaganda device which comprises a propaganda mechanism and a frame mechanism, the frame mechanism comprises a bottom frame assembly, a top frame assembly and two side frame plates, a plurality of rotating seats are rotatably mounted in the bottom frame assembly, and an insertion opening is formed in the center of each rotating seat in a penetrating mode; the cross section of the plugging port is polygonal; the propaganda mechanism comprises a plurality of propaganda plates, and each side surface of each propaganda plate is used for coating and printing propaganda information; an inserting column is arranged at the bottom of each propaganda plate, and in the initial state, the inserting columns are inserted into the inserting openings in a matched mode; three fixed columns are fixed at the bottom of the rotating seat and are uniformly distributed around the central axis of the rotating seat; the bottom frame assembly is provided with a driving mechanism in linkage with the fixing columns in a matched mode, and when the driving mechanism acts, all the propaganda plates can rotate together so that the other side faces can be kept flush. On the basis, the propaganda plate can be conveniently detached and replaced, and then the propaganda content can be rapidly updated.

Description

Technical Field

[0001] The present application relates to the technical field of promotional tools, and in particular to an educational promotional device. Background Art

[0002] Common propaganda devices include propaganda columns, propaganda display boards, and electronic display boards, among which propaganda columns are generally set up in places with large traffic such as communities, schools, enterprises, and government agencies. The existing Chinese patent application announcement number CN114005377A discloses an educational propaganda column, including a cleaning base, a propaganda column assembly, and a collection sunshade component; wherein, the propaganda column assembly includes a mounting box with multiple propaganda panels, and the propaganda panels are used to record the propaganda content, and all the propaganda panels are arranged equidistantly; each propaganda panel is rotatably connected to the mounting box through a transmission column, and each transmission column is fixed with a worm gear at one end that passes through the mounting box. A transmission rod is rotatably installed inside the mounting box, and one end of the transmission rod is connected to a motor; a plurality of worms are locally provided on the transmission rod, and each worm is engaged with each worm gear for transmission, and can drive all the propaganda panels to rotate together when the motor is running, thereby realizing the flipping of the propaganda panels and the replacement display of the propaganda content.

[0003] However, since the propaganda and educational content needs to be updated frequently, the propaganda panels need to be frequently disassembled in order to replace them with new ones with new content. In the above-mentioned related technical solutions, when disassembling the propaganda panels, the worm gear needs to be removed from the transmission column, and then the installation box needs to be removed so that the propaganda panels can be separated from the installation box, and then the propaganda panels can be smoothly taken out. The entire operation process is relatively cumbersome, time-consuming and labor-intensive, and needs to be improved. Summary of the Invention

[0004] Based on this, the present application provides an educational publicity device that can conveniently disassemble and replace publicity panels, thereby quickly completing the update of publicity content.

[0005] The present application provides an educational propaganda device that adopts the following technical solutions: An educational propaganda device comprises a propaganda mechanism and a frame mechanism; the frame mechanism comprises a bottom frame assembly, a top frame assembly, and two side frame plates, which together enclose an installation space; wherein a plurality of rotating seats are rotatably mounted within the bottom frame assembly, the rotating seats being equidistantly arranged, and an insertion port is provided through the center of each rotating seat, the insertion port having a polygonal cross-sectional shape; The publicity mechanism includes a plurality of publicity panels equidistantly arranged in the installation space. The cross-section of the publicity panels is a regular triangle, and each side of the publicity panels is used to print publicity information. A plug-in post is provided at the bottom of each publicity panel. In the initial state, the plug-in post is matched and inserted into the plug-in interface, and one side of each publicity panel remains flush. Three fixed columns are fixed at the bottom of the rotating base, and the three fixed columns are evenly arranged around the central axis of the rotating base; a driving mechanism that cooperates with the fixed columns is provided inside the bottom frame assembly. When the driving mechanism is activated, the various promotional panels can rotate together so that the other side remains flush.

[0006] By adopting the above-mentioned technical solution, the propaganda device of the present application is configured to insert each propaganda plate into each rotating seat respectively, and each side of each propaganda plate is printed with propaganda information, which can be used to publicize the latest ideological and political guidelines and policies; when in use, by timing the action of the driving mechanism, the driving mechanism can drive the fixed column to move to realize the rotation of the rotating seat, and then the other side of each propaganda plate can be rotated together to the surface of the propaganda device and kept flush, so as to regularly display different ideological and political information. When it is necessary to update the propaganda content, by forcing the propaganda plate to move upward and disengaging the plug-in column from the plug-in interface, the propaganda plate can be easily and quickly removed. At this time, the operator inserts the customized propaganda plate printed with the updated ideological and political information into the rotating seat, which can quickly complete the update of the propaganda content. The operation is convenient and conducive to promotion and application.

[0007] Optionally, the driving mechanism includes a truss plate, a movable arm plate and an electric push rod, the truss plate is slidably mounted on the bottom frame assembly, and the moving direction of the truss plate is the same as the width direction of the bottom frame assembly; a plurality of movable arm plates are provided, each movable arm plate is slidably connected to the truss plate, and the moving direction of the movable arm plate is the same as the extension direction of the bottom frame assembly; a return spring is provided between the movable arm plate and the truss plate, and the end of the movable arm plate away from the truss plate has a hook portion; A one-way bearing is provided between the rotating seat and the first base plate to achieve unidirectional rotation of the rotating seat; the positions of the three fixed columns on each rotating seat are respectively set as the first station, the second station and the waiting station. In the initial state, the first station and the second station are arranged opposite each other along the width direction of the bottom frame assembly. At this time, the two fixed columns at the first station and the second station are respectively in contact with the adjacent sides of the truss plate and the hook portion, and the return spring can force the side of the movable arm plate to contact the two fixed columns; The electric push rod is fixed inside the bottom frame assembly and is connected to the truss plate through a linkage structure. When the electric push rod moves, the hook part can force the fixed column of the first station to rotate to the second station.

[0008] By adopting the above-mentioned technical solution, the electric push rod of the present application is in a normally extended state. When the electric push rod is actuated, the hook part can pull the fixed column on the first station to rotate to the second station, thereby driving the rotating seat to rotate 120°, so that the promotional content on the other side of the promotional panel can be displayed, and the switching of the promotional content is successfully completed; then, the electric push rod is reset, and the hook part can be pressed against the fixed column on the first station during the resetting movement of the movable arm plate. At this time, the rotation of the rotating seat is limited by the one-way bearing. The hook part can move the movable arm plate outward and squeeze the reset spring when it is pressed against the hook part. When the hook part moves to the side of the first station away from the second station, the movable arm plate can be pressed against the fixed column under the elastic force of the reset spring, and at this time, the adjacent sides of the truss plate and the hook part can be pressed against the two fixed columns again, thereby realizing the precise maintenance of the rotation angle of the rotating seat.

[0009] Optionally, the linkage structure includes an extension plate, a movable plug-in block and a connecting column, the extension plate is fixed to the bottom of the truss plate, the movable plug-in block is vertically inserted into the extension plate, and the movable plug-in block normally rests against the extension plate under the action of gravity; A matching groove is provided at the bottom of the movable plug-in block, and a communication port connected to the matching groove is provided on the side of the movable plug-in block; a connecting post is fixedly connected to the movable end of the electric push rod, and the connecting post enters the matching groove through the communication port, and two clamping parts are fixedly provided on the outer circumference of the connecting post, and the two clamping parts respectively abut against two opposite side surfaces of the movable plug-in block; A locking mechanism is provided between the extension plate and the bottom frame assembly, which is used to maintain the positioning of the extension plate in the initial state. When the electric push rod is actuated, the locking mechanism releases the limit lock on the extension plate to achieve smooth rotation of the rotating seat.

[0010] By adopting the above-mentioned technical solution, when assembling the promotional device of the present application, the movable plug is inserted into the extension plate, the connecting column is inserted into the matching groove through the connecting port, and the connecting column is fixedly connected to the movable end of the electric push rod, thereby conveniently completing the assembly connection between the electric push rod and the truss plate. In the event that the electric push rod or a component of the linkage structure is damaged, it can be easily repaired and replaced to reduce the labor intensity of the operator. In addition, when the electric push rod is in the power-off state, the extension plate is locked by the provided locking mechanism, which can limit the movement of the truss plate and further limit the rotation of the rotating seat, so that each promotional plate maintains its state and the front end has a normal promotional display effect.

[0011] Optionally, the bottom frame assembly includes a first base plate, a second base plate and two side cover plates, the second base plate is located on the side of the first base plate away from the installation space, the truss plate is slidably connected to the second base plate, and the rotating seat is rotatably connected to the first base plate; the side cover plates are detachably fixed to the side surfaces of the first base plate and the second base plate, and the two side cover plates are respectively located on two opposite sides of the first base plate / second base plate.

[0012] By adopting the above technical solution, when the structural components inside the bottom frame assembly are damaged, the damaged components can be conveniently replaced by removing the side cover plates, thereby facilitating maintenance work by operators.

[0013] Optionally, the extension plate is normally against the inner side of one of the side cover plates, and the extension plate is provided with an insertion slot for inserting the movable plug-in block; a guide column is provided on the side of the movable plug-in block, and an oblique guide slot connected to the insertion slot is provided on the side of the extension plate, and the guide column is inserted into the oblique guide slot and moves freely in the oblique guide slot; The locking mechanism includes a locking seat vertically slidably connected to the second base plate and a compression spring arranged between the locking seat and the second base plate. The locking seat is located directly below the insertion slot. The compression spring forces the locking seat to be partially located in the insertion slot under normal conditions, and the locking seat is in contact with the inner side wall of the insertion slot close to the adjacent side cover plate; a structural groove is provided on the side of the locking seat away from the adjacent side cover plate, and a movable plug block is inserted into the structural groove. When the electric push rod is actuated, the movable plug block gradually abuts against the locking seat and forces the locking seat to disengage from the insertion slot to release the limit lock on the extension plate.

[0014] By adopting the above-mentioned technical solution, in the initial state, the extension plate is driven by the electric push rod to move to a position against the side cover plate. At this time, the locking seat can partially enter the insertion slot under the elastic force of the compression spring. The movement of the extension plate can be restricted by the common limit of the locking seat and the adjacent side cover plate, thereby realizing the limit locking of the rotating seat. When the promotional plate needs to be rotated to display the promotional content on the other side of the promotional plate, by controlling the action of the electric push rod, the connecting column first pulls the movable plug block toward the truss plate. At this time, the cooperation of the guide column and the inclined guide groove can gradually move the movable plug block downward. Finally, the movable plug block can abut against the locking seat and push the locking seat away from the insertion slot. At this time, the extension plate can move with the truss plate, thereby forcing the movable arm plate to drive the rotating seat to rotate, so as to smoothly switch the promotional content.

[0015] Optionally, the movable plug-in block includes an integrally formed upper counterweight block and a lower plug-in block, the guide column is arranged on the side of the upper counterweight block, and the matching groove is opened on the lower plug-in block; the upper counterweight block is provided with a first inclined surface near the bottom edge of the adjacent side cover plate, and the insertion slot is provided with a second inclined surface near the inner top edge of the adjacent side cover plate, and the first inclined surface always matches and fits with the second inclined surface under the action of gravity; when the electric push rod is actuated, the upper counterweight block moves downward into the insertion slot, and at this time the side of the upper counterweight block away from the adjacent side cover plate can be abutted against the inner wall of the insertion slot.

[0016] By adopting the above-mentioned technical solution, the upper counterweight is provided to increase the weight of the movable insert, so that under the action of its own weight, the first inclined surface of the movable insert can always be in contact with the second inclined surface of the insertion slot, so that when the electric push rod drives the connecting column to move, the movable insert can move accordingly. In addition, when the upper counterweight enters the insertion slot under the drive of the electric push rod, the contact between the side surface of the upper counterweight and the inner wall of the insertion slot, as well as the contact between the first inclined surface and the second inclined surface, can limit the lateral shaking of the extension plate during movement, thereby facilitating the precise maintenance of the rotation angle of the swivel seat.

[0017] Optionally, the locking seat is provided with a first guide surface away from the top edge of the adjacent side cover plate, and the extension plate is provided with a second guide surface close to the bottom edge of the adjacent side cover plate. When the electric push rod resets, the first guide surface cooperates with the second guide surface to abut against each other to force the locking seat to move downward.

[0018] By adopting the above-mentioned technical solution, when the electric push rod is controlled to reset to force the extension plate to reset and move, the first guide surface of the extension plate can abut against the second guide surface of the locking seat, thereby forcing the locking seat to move downward to the bottom of the extension plate; after the extension plate is reset to the initial position, the locking seat re-enters the insertion slot under the elastic force of the compression spring, thereby being able to limit and lock the extension plate again.

[0019] Optionally, the top of the oblique guide groove passes through the top surface of the extension plate.

[0020] By adopting the above technical solution and passing the inclined guide groove through the top surface of the extension plate, the convenience of inserting the movable plug into the extension plate can be improved, and it can also be conveniently disassembled and replaced when subsequent components are damaged, thereby improving the convenience of maintenance operations.

[0021] Optionally, a rotating column is provided on the top of the publicity plate, and a limit plate is provided on the top of the rotating column, and the outer diameter of the limit plate is larger than the outer diameter of the rotating column; The top frame assembly includes a first top plate and a second top plate fixed in sequence from bottom to top, and the sides of the first top plate and the second top plate are detachably fixed with side panels; the top surface of the first top plate is provided with a mounting track, and the mounting track includes a first groove area and a second groove area that are interconnected, the second groove area is located above the first groove area, the width of the first groove area is adapted to the outer diameter of the rotating column, and the width of the second groove area is adapted to the outer diameter of the limit plate; An inner end of the first groove area is provided with an inner recessed opening, the inner diameter of the inner recessed opening is adapted to the outer diameter of the limiting plate, and when the rotating column enters the mounting track, the limiting plate eventually enters the inner recessed opening.

[0022] By adopting the above-mentioned technical solution, when the publicity plate of the present application is installed, the rotating column on the top of the publicity plate is made to enter the first groove area of ​​the first top plate, and the limiting plate is made to enter the second groove area of ​​the first top plate. After the publicity plate moves inward to the inner end of the first groove area, the stopper can be sunken into the recessed opening, so that the publicity plate is automatically inserted into the corresponding rotating seat to complete the rapid installation of the publicity plate; based on this, the stopper can rotate freely in the recessed opening, which helps to balance the forces at the upper and lower ends of the publicity plate, and can maintain a good service life of the publicity plate and reduce the possibility of local bending and deformation.

[0023] Optionally, the educational promotional device also includes a roof mechanism, which includes a protective roof panel fixedly mounted on the top of the frame mechanism and a photovoltaic component installed on the top surface of the protective roof panel, and the photovoltaic component is electrically connected to the driving mechanism to supply power to the driving mechanism.

[0024] By adopting the above-mentioned technical solution, the setting of the protective shed is used to prevent smashing and rain, and by installing photovoltaic modules on the top of the protective shed, the photovoltaic modules can generate electricity and power the electric push rod, thereby solving the problem that the electric push rod requires an external power supply, and facilitating the installation of the promotional device outdoors.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. Through the plug-in connection between the plug-in column and the plug-in interface, the propaganda plate can be conveniently and quickly taken out when the propaganda content needs to be updated. At this time, the operator inserts the customized propaganda plate printed with the latest ideological and political information into the rotating seat, and the propaganda content can be updated quickly. The operation is convenient and conducive to promotion and application; 2. An electric push rod is provided to drive the truss plate to move. When the truss plate moves, the hook portion of the movable arm plate can pull the fixed column on the first station to rotate to the second station, thereby driving the rotating seat to rotate 120 degrees, so that the promotional content on the other side of the promotional plate can be displayed, thereby completing the switching of the promotional content; 3. When the electric push rod is in the power-off state, the extension plate is locked by the provided locking mechanism, which can limit the movement of the truss plate and then limit the rotation of the rotating seat, so that each promotional plate can maintain its state. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the overall structure of this embodiment; Figure 2 It is a structural diagram of the publicity section in this embodiment; Figure 3 Schematic diagram of the partial structure of the top frame assembly in this embodiment; Figure 4 Schematic diagram of the partial structure of the first top plate in this embodiment; Figure 5 1 is a schematic diagram of the partial structure of the bottom frame assembly in this embodiment; Figure 6 This is a schematic cross-sectional view of the bottom frame assembly and the promotional plate in this embodiment, mainly showing the installation positions of the rotating seat and the one-way bearing; Figure 7 This is a partial structural diagram of the rotating seat and the driving mechanism in this embodiment, which mainly reflects the coordination relationship between the movable arm plate and the rotating seat; Figure 8 1 is a partial cross-sectional schematic diagram of the bottom frame assembly in this embodiment, which mainly reflects the specific structure of the driving mechanism; Figure 9 Schematic diagram of the specific structure of the linkage structure in this embodiment; Figure 10 is a schematic diagram of the specific structure of the movable plug in this embodiment; Figure 11 is a partial cross-sectional view of the second base plate and the extension plate in this embodiment, mainly showing the specific structure of the locking mechanism; Figure 12 It is a partial cross-sectional view of the second substrate and the extension plate in another direction in this embodiment, and is also used to illustrate the specific structure of the locking mechanism.

[0027] Explanation of reference numerals: 1. publicity mechanism; 11. publicity plate; 12. plug-in column; 121. support plate; 13. rotating column; 131. limit plate; 2. frame mechanism; 21. installation space; 3. bottom frame assembly; 31. first substrate; 32. second substrate; 33. third substrate; 331. support column; 332. support seat; 34. side cover; 4. Top frame assembly; 41. First top plate; 411. Mounting rail; 412. First slot area; 413. Second slot area; 414. Indentation; 42. Second top plate; 43. Side joint; 5. Side frame plate; 6. Rotating seat; 61. Fixed column; 62. Plug port; 63. One-way bearing; 64. First station; 65. Second station; 66. Waiting station; 7. Driving mechanism; 71. Truss plate; 711. Waist-shaped hole; 712. Sliding slot; 713. Slide rail slider; 72. Moving arm plate; 721. Hooking portion; 722. Return spring; 723. Sliding post; 73. Electric push rod; 74. Extension plate; 741. Insertion slot; 742. Second inclined surface; 743. Oblique guide groove; 744. Second guide surface; 75. Movable insert; 751. Upper counterweight; 752. Lower insert; 753. First inclined surface; 754. Guide post; 755. Matching slot; 756. Connecting port; 76. Connecting post; 761. Cylindrical section; 762. Rectangular section; 763. Clamping portion; 764. Coupling; 8. Locking mechanism; 81. Locking seat; 811. Structural groove; 812. First guide surface; 82. Compression spring; 83. Stud member; 831. Limiting end; 9. Roof mechanism; 91. Protective shed board; 92. Photovoltaic module; 93. Bracket seat. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 -Attached Figure 12 This application is described in further detail.

[0029] The embodiment of the present application discloses an educational propaganda device.

[0030] Reference Figure 1 A propaganda device for education includes a propaganda mechanism 1, a frame mechanism 2 and a ceiling mechanism 9, wherein the propaganda mechanism 1 includes multiple propaganda panels 11, and the cross-sectional shape of each propaganda panel 11 is a regular triangle, that is, each propaganda panel 11 has three sides, and each side is used to print ideological and political education propaganda information for promoting current ideological and political guidelines and policies.

[0031] Reference Figure 2 The bottom of the promotional panel 11 is fixedly connected to a plug-in post 12. In this embodiment, the cross-sectional shape of the plug-in post 12 is polygonal, specifically a regular quadrilateral. However, it should be noted that in other feasible embodiments, the cross-sectional shape of the plug-in post 12 can also be a triangle, pentagon, or hexagon, and is not limited to the shape shown in this embodiment. In addition, the top of the promotional panel 11 is fixedly connected to a rotating post 13. The top end of the rotating post 13 is fixedly connected to a limit plate 131. The outer diameter of the limit plate 131 is larger than the outer diameter of the rotating post 13.

[0032] Back to Figure 1 The frame mechanism 2 includes a bottom frame assembly 3, a top frame assembly 4 and two side frame plates 5, which together enclose an installation space 21; Figure 3 The top frame assembly 4 includes a first top plate 41, a second top plate 42, and side panels 43. The second top plate 42 is fixedly connected to the side of the first top plate 41 away from the installation space 21, while the side panels 43 are removably fixed to the sides of the first and second top plates 41, 42 via fasteners. Mounting rails 411 are defined on the top surface of the first top plate 41 and extend through the side of the first top plate 41 near the side panels 43. The number of mounting rails 411 is equal to the number of promotional panels 11, and all mounting rails 411 are equidistantly arranged along the extension direction of the first top plate 41.

[0033] Reference Figure 4Each mounting rail 411 includes a first groove area 412 and a second groove area 413, and the second groove area 413 is located above the first groove area 412 and is connected to the first groove area 412; the width of the first groove area 412 is not less than the outer diameter of the rotating column 13, and the width of the second groove area 413 is set to be equal to the outer diameter of the limiting plate 131.

[0034] The inner end of the first groove area 412 is provided with an inner recessed opening 414, and the inner diameter of the inner recessed opening 414 is set to be equal to the outer diameter of the limiting plate 131; Figure 3 By locking the promotional panel 11 into the corresponding mounting track 411, the limiting plate 131 enters the corresponding second groove 413, pushing the promotional panel 11 inward to the inner end of the second groove 413. Under the action of the weight of the promotional panel 11, the limiting plate 131 of the promotional panel 11 eventually enters the recessed opening 414, thereby positioning the promotional panel 11. Furthermore, the limiting plate 131 in this embodiment is a tapered plate that is wider at the top and narrower at the bottom, which ensures that the limiting plate 131 is normally located within the recessed opening 414 under the action of the weight of the promotional panel 11.

[0035] Reference Figure 5 The bottom frame assembly 3 includes a first base plate 31, a second base plate 32, a third base plate 33, and two side covers 34. The first, second, and third base plates 31, 32, and 33 are fixed sequentially from top to bottom. The side covers 34 are fastened to the sides of the first, second, and third base plates 31, 32, and 33 via fasteners. The two side covers 34 are located on opposite sides of the first, second, and third base plates 31, 32, and 33, respectively. Two support columns 331 are fixed to the bottom of the third base plate 33. A support base 332 is fixed to the bottom of both support columns 331. The support base 332 can be fixed to the ground foundation via anchor bolts, thereby securing the promotional device to the ground foundation.

[0036] Reference Figure 6 A plurality of rotating seats 6 are provided inside the bottom frame assembly 3, and each rotating seat 6 is rotatably mounted on the first base plate 31, and a one-way bearing 63 is embedded in the rotating connection between the rotating seat 6 and the first base plate 31 to realize the one-way rotation of the rotating seat 6; in this embodiment, the number of rotating seats 6 is equal to the number of promotional panels 11, and all rotating seats 6 are equidistantly arranged along the extension direction of the first base plate 31.

[0037] A plug-in interface 62 is provided at the center of each rotating seat 6, and the plug-in interface 62 passes through the upper and lower side surfaces of the rotating seat 6, and the cross-sectional shape of the plug-in interface 62 is adapted to the cross-sectional shape of the plug-in column 12; in the initial state, that is, when the promotional device is in normal use, the plug-in column 12 is matched and inserted into the plug-in interface 62, at this time one of the side surfaces of each promotional panel 11 can be kept flush, and the promotional information on the sides of all the promotional panels 11 can together form a complete promotional content for display and promotion; it should be noted here that through the rectangular design of the plug-in interface 62 and the plug-in column 12, the rotation of the rotating seat 6 can drive the promotional panel 11 to rotate together.

[0038] Reference Figures 3 to 6 During the assembly of the publicity panel 11, the side panels 43 are removed and the limiting plate 131 of the publicity panel 11 is inserted into the second groove 413. At this time, the plug-in column 12 can be located above the first base plate 31. The publicity panel 11 is pushed inward to the limit position. Under the action of its own gravity, the limiting plate 131 can move downward and sink into the recessed opening 414. At this time, the plug-in column 12 can automatically move downward and match and insert into the plug-in port 62, so that the rotation of the rotating seat 6 can smoothly drive the rotation of the publicity panel 11. In addition, a supporting plate 121 is partially fixed to the outer peripheral side of each plug-in column 12. When the publicity panel 11 automatically moves downward, the supporting plate 121 can abut against the top surface of the first base plate 31, so that each publicity panel 11 is at the same level.

[0039] Back to Figure 6 Three fixing columns 61 are vertically fixed to the bottom of each rotating base 6, and the three fixing columns 61 are evenly arranged around the central axis of the rotating base 6; a driving mechanism 7 is provided inside the bottom frame assembly 3 to cooperate with the fixing columns 61. When the driving mechanism 7 is activated, each promotional panel 11 can rotate together so that the other side is switched to a flush position, and the promotional content on this side can be displayed, thereby realizing the switching of the promotional content.

[0040] It should be noted here that, referring to Figure 7 In this embodiment, the positions of the three fixed columns 61 on the rotating seat 6 are respectively set as the first station 64, the second station 65 and the waiting station 66. In the initial state, the first station 64 and the second station 65 can be set opposite each other along the width direction of the bottom frame assembly 3.

[0041] Also refer to Figure 8The drive mechanism 7 includes a truss plate 71, a movable arm plate 72, and an electric push rod 73. The truss plate 71 is slidably connected to the top of the second base plate 32 via a slide rail 713, and the sliding direction of the truss plate 71 is arranged in the same direction as the width of the second base plate 32. In the initial state, the truss plate 71 can abut against the fixed column 61 of the second station 65. The truss plate 71 and the one-way bearing 63 work together to maintain the angular positioning of the rotating base 6.

[0042] There are multiple movable arm plates 72, the specific number of which is equal to the number of rotating seats 6, and each movable arm plate 72 is slidably connected to the truss plate 71. Specifically, back to Figure 7 The inner side of the truss plate 71 is provided with a sliding groove 712 for the movable arm plate 72 to slide and limit the rotation of the movable arm plate 72. The upper and lower sides of the truss plate 71 are respectively provided with waist-shaped holes 711. The two opposite sides of the movable arm plate 72 are respectively fixed with sliding columns 723. By allowing the sliding columns 723 to pass through the waist-shaped holes 711 and move freely in the waist-shaped holes 711, the sliding setting of the movable arm plate 72 can be realized; the moving direction of the movable arm plate 72 is set in the same direction as the length direction of the second base plate 32.

[0043] It should be noted that each movable arm plate 72 is disposed on the outer side of each rotating seat 6, and a return spring 722 is disposed between each movable arm plate 72 and the truss plate 71. The return spring 722 can always generate an elastic force acting on the movable arm plate 72, so that the movable arm plate 72 is normally in contact with the two fixed columns 61 of the first station 64 and the second station 65. In addition, the end of the movable arm plate 72 away from the truss plate 71 has an integrally formed hook portion 721. The side of the hook portion 721 close to the truss plate 71 can be in contact with the fixed column 61 of the first station 64. Based on this, the two fixed columns 61 located at the first station 64 and the second station 65 can respectively be in contact with the adjacent sides of the truss plate 71 and the hook portion 721.

[0044] Reference Figure 8 , the electric push rod 73 is fixed to the bottom surface of the second base plate 32. The electric push rod 73 in this embodiment is in a normally extended state, and the electric push rod 73 is connected to the truss plate 71 through a linkage structure; specifically, the linkage structure includes an extension plate 74, a movable plug block 75 and a connecting column 76, and the extension plate 74 is fixed to the bottom of the truss plate 71; refer to Figure 9 One side end surface of the extension plate 74 extends outward to abut against the inner side surface of one of the side cover plates 34; the top surface of the extension plate 74 is provided with an insertion slot 741 for the movable plug-in block 75 to be inserted, and the insertion slot 741 is located at one side end of the extension plate 74 close to the adjacent side cover plate 34.

[0045] Reference Figure 10 、 Figure 11In this embodiment, the movable insert block 75 includes an integrally formed upper counterweight block 751 and a lower insert block 752. The width of the upper counterweight block 751 is set equal to the width of the insertion slot 741. The upper counterweight block 751 is provided with a first inclined surface 753 near the bottom edge of the adjacent side cover 34, and the insertion slot 741 is provided with a second inclined surface 742 near the inner top edge of the adjacent side cover 34. Under the action of its own gravity, the movable insert block 75 can make the first inclined surface 753 normally fit the second inclined surface 742, thereby making the movable insert block 75 normally abut against the extension plate 74. Back Figure 9 It should be noted here that when the movable plug block 75 moves downward and the upper counterweight block 751 enters the insertion slot 741, the side of the upper counterweight block 751 away from the adjacent side cover plate 34 can eventually be abutted against the inner wall of the insertion slot 741, so that the extension plate 74 and the truss plate 71 can move together with the movable plug block 75.

[0046] In addition, refer to Figure 9 、 Figure 10 Guide posts 754 are fixed to two opposing sides of the upper counterweight 751, and oblique guide slots 743 are defined on two opposing sides of the extension plate 74. Each oblique guide slot 743 communicates with the insertion slot 741. Two guide posts 754 are respectively inserted into the two oblique guide slots 743, and each guide post 754 is able to move freely within the oblique guide slots 743, thereby defining the movement path of the movable insert 75. It should be noted that the inclination angle of the oblique guide slots 743 is consistent with the inclination angle of the first inclined surface 753. In addition, the top of the oblique guide slots 743 passes through the top surface of the extension plate 74, facilitating the insertion of the movable insert 75 into the extension plate 74.

[0047] The lower insert block 752 of the movable insert block 75 is inserted through the second substrate 32 and extends to the bottom of the second substrate 32 ; the lower insert block 752 is provided with a mating groove 755 passing through on both sides, and a connecting port 756 connected to the mating groove 755 is provided on the side of the lower insert block 752 . The connecting column 76 in this embodiment includes an integrally formed cylindrical section 761 and a rectangular column section 762, and the end of the cylindrical section 761 away from the rectangular column section 762 is connected to the movable end of the electric push rod 73 through a coupling 764; two clamping parts 763 are fixedly provided on the outer peripheral side of the rectangular column section 762, and the two clamping parts 763 are respectively formed at the two ends of the rectangular column section 762, and the spacing between the two clamping parts 763 is equal to the thickness of the lower insert block 752; after the rectangular column section 762 enters the interior of the matching groove 755 through the connecting port 756, the two clamping parts 763 can respectively abut against the two opposite side surfaces of the lower insert block 752, so that when the connecting column 76 moves, it can drive the movable insert block 75 to move; the height of the connecting column 76 is less than the height of the matching groove 755, so that the connecting column 76 can move vertically in the matching groove 755.

[0048] Reference Figures 7 to 11When the cam 721 is in the unlocking state, the locking cam 722 is in the unlocking state, and the locking cam 723 is in the unlocking state, so that the cam 722 can be locked directly to the unlocking cam 723. When the cam 722 is unlocked, the locking cam 723 is in the unlocking state, and the locking cam 723 is in the unlocking state.

[0049] Then, the electric push rod 73 is controlled to reset, and the movable arm plate 72 is pressed against the fixed column 61 on the first station 64 during the reset movement. At this time, the rotation of the rotating seat 6 is limited by the one-way bearing 63, and the hook portion 721 can move the movable arm plate 72 outward and squeeze the reset spring 722. When the hook portion 721 moves to the side of the first station 64 away from the second station 65, the movable arm plate 72 can be pressed against the fixed column 61 under the elastic force of the reset spring 722, and at this time, the adjacent sides of the truss plate 71 and the hook portion 721 can be pressed against the two fixed columns 61 again, thereby realizing the precise maintenance of the rotation angle of the rotating seat 6.

[0050] Back to Figure 9 A locking mechanism 8 is further provided between the extension plate 74 and the bottom frame, and the locking mechanism 8 is used to maintain the positioning of the extension plate 74 in the initial state; Figure 12 The locking mechanism 8 includes a locking seat 81 and a compression spring 82. The locking seat 81 is movably disposed through the second base plate 32 and is located directly below the insertion slot 741. A plurality of studs 83 are disposed between the locking seat 81 and the second base plate 32. The studs 83 are threadedly connected to the bottom of the second base plate 32, and the locking seat 81 is slidably disposed through the studs 83.

[0051] A limiting end 831 is provided at one end of the stud member 83 away from the second base plate 32, and a compression spring 82 is sleeved on the stud member 83, one end of the compression spring 82 abuts against the limiting end 831, and the other end abuts against the locking seat 81; the compression spring 82 can always generate an elastic force acting on the locking seat 81, thereby forcing the locking seat 81 to move upward until it abuts against the second base plate 32. At this time, the top end of the locking seat 81 can partially enter the insertion slot 741, and the locking seat 81 abuts against the inner side wall of the insertion slot 741 close to the adjacent side cover plate 34, thereby limiting the movement of the extension plate 74 when the electric push rod 73 is in the power-off state, thereby limiting the movement of the truss plate 71, so that the rotating seat 6 maintains its position.

[0052] A structural groove 811 is provided on the side of the locking seat 81 away from the adjacent side cover plate 34, and the lower insert block 752 is inserted into the structural groove 811; when the electric push rod 73 is actuated and forces the movable insert block 75 to gradually move downward, the movable insert block 75 can gradually abut against the locking seat 81 and force the locking seat 81 to disengage from the insertion groove 741, thereby releasing the limit lock on the extension plate 74; then, the lower insert block 752 can leave the locking seat 81 through the structural groove 811.

[0053] The locking seat 81 is provided with a first guide surface 812 away from the top edge of the adjacent side cover plate 34. Figure 11 The extension plate 74 is provided with a second guide surface 744 near the bottom edge of the adjacent side cover plate 34. When the electric push rod 73 is reset and the extension plate 74 is reset and moved, the second guide surface 744 of the extension plate 74 can abut against the first guide surface 812 of the locking seat 81, thereby forcing the locking seat 81 to automatically move downward; when the extension plate 74 is reset to the initial position, the locking seat 81 can re-enter the insertion slot 741 under the elastic force of the compression spring 82, thereby again limiting and locking the extension plate 74.

[0054] Back to Figure 1 The ceiling mechanism 9 includes a protective shed plate 91 and a photovoltaic module 92. The sides of the two side frame plates 5 are respectively fixed with bracket seats 93. The protective shed plate 91 is fixedly mounted on the two bracket seats 93 and is located above the frame mechanism 2; the photovoltaic module 92 is embedded in the top surface of the protective shed plate 91. The photovoltaic module 92 is electrically connected to the electric push rod 73 and can be used to power the electric push rod 73, which is used to solve the problem that the electric push rod 73 requires an external power supply, thereby facilitating the outdoor installation of the promotional device.

[0055] The above are preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An educational propaganda device, comprising a propaganda mechanism (1) and a frame mechanism (2), characterized in that: The frame mechanism (2) comprises a bottom frame assembly (3), a top frame assembly (4) and two side frame plates (5), wherein the bottom frame assembly (3), the top frame assembly (4) and the two side frame plates (5) together enclose an installation space (21); wherein a plurality of rotating seats (6) are rotatably installed inside the bottom frame assembly (3), the rotating seats (6) are arranged at equal intervals, and a plug-in interface (62) is provided through the center of each rotating seat (6), and the cross-sectional shape of the plug-in interface (62) is polygonal; The publicity mechanism (1) comprises a plurality of publicity panels (11) equidistantly arranged in an installation space (21), wherein the cross-sectional shape of the publicity panels (11) is a regular triangle, and each side surface of the publicity panels (11) is used for printing publicity information; a plug-in column (12) is provided at the bottom of each publicity panel (11), and in an initial state, the plug-in column (12) is matched and plugged into the plug interface (62), and one side surface of each publicity panel (11) remains flush; Three fixed columns (61) are fixed at the bottom of the rotating seat (6), and the three fixed columns (61) are evenly arranged around the central axis of the rotating seat (6); a driving mechanism (7) that cooperates with the fixed columns (61) is provided inside the bottom frame assembly (3); when the driving mechanism (7) is activated, each of the promotional panels (11) can rotate together so that the other side remains flush.

2. The educational promotional device according to claim 1, wherein: The driving mechanism (7) comprises a truss plate (71), a movable arm plate (72) and an electric push rod (73); the truss plate (71) is slidably mounted on the bottom frame assembly (3), and the moving direction of the truss plate (71) is the same as the width direction of the bottom frame assembly (3); a plurality of movable arm plates (72) are provided, each movable arm plate (72) is slidably connected to the truss plate (71), and the moving direction of the movable arm plate (72) is the same as the extension direction of the bottom frame assembly (3); a return spring (722) is provided between the movable arm plate (72) and the truss plate (71), and the end of the movable arm plate (72) away from the truss plate (71) has a hook portion (721); A one-way bearing (63) is provided between the rotating seat (6) and the first base plate (31) to realize the one-way rotation of the rotating seat (6); the positions of the three fixed columns (61) on each rotating seat (6) are respectively set as the first station (64), the second station (65) and the waiting station (66); in the initial state, the first station (64) and the second station (65) are arranged opposite to each other along the width direction of the bottom frame assembly (3); at this time, the two fixed columns (61) located at the first station (64) and the second station (65) are respectively pressed against the adjacent sides of the truss plate (71) and the hook portion (721), and the reset spring (722) can force the side of the movable arm plate (72) to press against the two fixed columns (61); The electric push rod (73) is fixed inside the bottom frame assembly (3), and the electric push rod (73) is connected to the truss plate (71) through a linkage structure. When the electric push rod (73) moves, the hook portion (721) can force the fixed column (61) of the first station (64) to rotate to the second station (65).

3. The educational promotional device according to claim 2, wherein: The linkage structure includes an extension plate (74), a movable plug-in block (75) and a connecting column (76); the extension plate (74) is fixed to the bottom of the truss plate (71); the movable plug-in block (75) is vertically inserted into the extension plate (74); and the movable plug-in block (75) normally abuts against the extension plate (74) under the action of gravity; The bottom of the movable plug (75) is provided with a matching groove (755), and the side of the movable plug (75) is provided with a connecting port (756) connected to the matching groove (755); the connecting column (76) is fixedly connected to the movable end of the electric push rod (73), and the connecting column (76) enters the matching groove (755) through the connecting port (756), and two clamping parts (763) are fixedly provided on the outer peripheral side of the connecting column (76), and the two clamping parts (763) are respectively pressed against two opposite side surfaces of the movable plug (75); A locking mechanism (8) is provided between the extension plate (74) and the bottom frame assembly (3), and the locking mechanism (8) is used to realize the positioning and maintenance of the extension plate (74) in the initial state. When the electric push rod (73) is actuated, the locking mechanism (8) releases the limit lock on the extension plate (74) to realize the smooth rotation of the rotating seat (6).

4. The educational promotional device according to claim 3, wherein: The bottom frame assembly (3) comprises a first base plate (31), a second base plate (32) and two side cover plates (34); the second base plate (32) is located on a side of the first base plate (31) away from the installation space (21); the truss plate (71) is slidably connected to the second base plate (32); the rotating seat (6) is rotatably connected to the first base plate (31); the side cover plates (34) are detachably fixed to the side surfaces of the first base plate (31) and the second base plate (32), and the two side cover plates (34) are respectively located on two opposite sides of the first base plate (31) / the second base plate (32).

5. The educational promotional device according to claim 4, characterized in that: The extension plate (74) is normally against the inner side surface of a side cover plate (34), and the extension plate (74) is provided with an insertion slot (741) for inserting a movable insert block (75); a guide column (754) is provided on the side surface of the movable insert block (75); an oblique guide slot (743) connected to the insertion slot (741) is provided on the side surface of the extension plate (74), and the guide column (754) is inserted into the oblique guide slot (743) and moves freely in the oblique guide slot (743); The locking mechanism (8) comprises a locking seat (81) vertically slidably connected to the second base plate (32) and a compression spring (82) arranged between the locking seat (81) and the second base plate (32); the locking seat (81) is located directly below the insertion slot (741); the compression spring (82) forces the locking seat (81) to be partially located in the insertion slot (741) under normal conditions, and the locking seat (81) abuts against the inner side wall of the insertion slot (741) close to the adjacent side cover (34); a structural groove (811) is provided on the side of the locking seat (81) away from the adjacent side cover (34); the movable plug (75) is inserted into the structural groove (811); when the electric push rod (73) moves, the movable plug (75) gradually abuts against the locking seat (81) and forces the locking seat (81) to disengage from the insertion slot (741) to release the limit lock on the extension plate (74).

6. The educational promotional device according to claim 5, wherein: The movable plug-in block (75) includes an upper counterweight block (751) and a lower plug-in block (752) formed in one piece. The guide column (754) is arranged on the side of the upper counterweight block (751), and the matching groove (755) is opened in the lower plug-in block (752); the upper counterweight block (751) is provided with a first inclined surface (753) near the bottom edge of the adjacent side cover plate (34), and the insertion slot (741) is provided with a second inclined surface (742) near the inner top edge of the adjacent side cover plate (34). The first inclined surface (753) always matches and fits with the second inclined surface (742) under the action of gravity; when the electric push rod (73) moves, the upper counterweight block (751) moves downward and enters the insertion slot (741). At this time, the side of the upper counterweight block (751) away from the adjacent side cover plate (34) can be pressed against the inner wall of the insertion slot (741).

7. The educational promotional device according to claim 5, wherein: The locking seat (81) is provided with a first guide surface (812) at a top edge away from the adjacent side cover plate (34), and the extension plate (74) is provided with a second guide surface (744) near the bottom edge of the adjacent side cover plate (34). When the electric push rod (73) is reset and moved, the first guide surface (812) and the second guide surface (744) cooperate and abut to force the locking seat (81) to move downward.

8. The educational promotional device according to claim 5, wherein: The top of the inclined guide groove (743) passes through the top surface of the extension plate (74).

9. The educational promotional device according to claim 1, wherein: A rotating column (13) is provided on the top of the publicity plate (11), and a limiting plate (131) is provided on the top of the rotating column (13), wherein the outer diameter of the limiting plate (131) is larger than the outer diameter of the rotating column (13); The top frame assembly (4) includes a first top plate (41) and a second top plate (42) fixed in sequence from bottom to top, and the sides of the first top plate (41) and the second top plate (42) are detachably fixed with a side plate (43); the top surface of the first top plate (41) is provided with a mounting track (411), and the mounting track (411) includes a first groove area (412) and a second groove area (413) that are interconnected, and the second groove area (413) is located above the first groove area (412), and the width of the first groove area (412) is adapted to the outer diameter of the rotating column (13), and the width of the second groove area (413) is adapted to the outer diameter of the limit plate (131); The inner end of the first groove area (412) is provided with an indentation (414), the inner diameter of the indentation (414) is adapted to the outer diameter of the limiting plate (131), and when the rotating column (13) enters the mounting track (411), the limiting plate (131) eventually enters the indentation (414).

10. The educational promotional device according to claim 1, wherein: The invention also includes a roof mechanism (9), wherein the roof mechanism (9) includes a protective shed plate (91) fixedly mounted on the top of the frame mechanism (2) and a photovoltaic assembly (92) mounted on the top surface of the protective shed plate (91), wherein the photovoltaic assembly (92) is electrically connected to the driving mechanism (7) for supplying power to the driving mechanism (7).

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