Combined electronic information bulletin board

Abstract

The utility model discloses a combined electronic information bulletin board, including frame body, the front side middle part of frame body is set up with display screen, wherein, and the upper and lower sides of frame body left and right two ends are all along the axis through the flexible pad of setting, wherein, the left and right two ends of flexible pad rear side are along the axis symmetry and are equipped with the bulletin board. This scheme is through drive member and is driven gear through transmission part, and respectively engages toothed plate one and promotes bulletin board to be first straightly removed and then moves forward and unrolls or withdraws, engages toothed plate two and pulls flexible pad and contracts or winds spring and resets, realizes bulletin board and flexible pad synchronous regulation, and the electronic information display of display screen, paper notice display of bulletin board and the propaganda slogan display function of flexible pad are combined as a whole, and the problem that the prior art does not have combined effect is solved.

Description

Technical Field

[0001] This utility model belongs to the field of information bulletin board technology, and in particular relates to a combined electronic information bulletin board. Background Technology

[0002] In the existing technology, electronic information bulletin boards are mostly single-function designs. They usually only have electronic display screens for displaying electronic information, or only have traditional bulletin boards for displaying paper information, or only have promotional materials for displaying slogans. It is difficult to organically integrate multiple display functions such as electronic display, paper announcements and flexible publicity.

[0003] In practical use, such single-function bulletin boards often require multiple independent devices to display electronic information, paper notices, and slogans simultaneously, which takes up a lot of space and makes the information display operation cumbersome, making it difficult to meet diverse information display needs. Utility Model Content

[0004] The purpose of this utility model is to provide a combined electronic information bulletin board to solve the technical problem that existing electronic information bulletin boards are mostly single-function and cannot integrate the display functions of display screen, bulletin board and flexible pad, resulting in poor flexibility and inability to meet diverse information display needs.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A combined electronic information bulletin board includes a frame, a display screen is mounted on the front center of the frame, and flexible pads are provided along the axis on the upper and lower sides of the left and right ends of the frame, and bulletin boards are symmetrically provided along the axis on the left and right ends of the rear side of the flexible pads.

[0006] The notice board is provided with a pushing mechanism on its rear side to adjust its position. The pushing mechanism includes a U-shaped frame, which is set on the rear side of the notice board. The U-shaped frame is pushed by a driving structure. The top and bottom of the rear side of the U-shaped frame are movably mounted with pulleys through mounting seats. The pulleys cooperate with the driving structure to drive the U-shaped frame to slide stably in the pushing direction.

[0007] Preferably, a sunshade is mounted on the top of the frame, and fixing sleeves are fastened to both sides of the display screen by bolts. The fixing sleeves are used to install the display screen onto the sunshade.

[0008] Preferably, the top and bottom of the front shaft end of the flexible pad are connected to slide rods. The top and bottom of the two fixed sleeves on opposite sides are provided with circular grooves. The inner cavity of the circular grooves is equipped with fixed sleeves. The top and bottom of the front side of the frame and the side of the fixed sleeves are horizontally supported by slide frames. The slide rods extend into the slide frames and slide inside them.

[0009] Preferably, the drive structure includes two drive members symmetrically arranged on the rear side of the frame, and a fixed support plate is mounted on one side of the drive member, the fixed support plate being cross-shaped.

[0010] Preferably, the output end of the drive component and one side thereof are provided with a transmission component, two adjacent transmission components are connected by chain transmission, the center of the transmission component is connected to a drive shaft, and a gear is sleeved on one end of the surface of the drive shaft.

[0011] Preferably, a toothed plate is meshed above the gear, and one side of the toothed plate is connected to the surface of the spiral frame via a support rod.

[0012] Preferably, the pushing mechanism further includes guide plates disposed at the top and bottom of the rear side of the frame. The surface of the guide plate is provided with a guide groove, and a pulley 2 is slidably disposed in the inner cavity of the guide groove. The guide groove can change the moving direction of the pulley 2.

[0013] Preferably, the top and bottom of the U-shaped frame are movably mounted with push plates via pivots, and the four corners of the rear side of the bulletin board are connected with connecting blocks, wherein the side of the push plate away from the U-shaped frame is movably connected to the adjacent connecting block via pivots.

[0014] Preferably, the top and bottom of the rear side of the frame are equipped with sliding support plates, and two vertically symmetrical pulleys slide in contact with the opposite side of the two vertical sliding support plates.

[0015] Preferably, the lower side of the gear is meshed with a second toothed plate, which is used to pull the flexible pad. One side of the bottom of the second toothed plate is connected to a connecting plate via a connecting plate.

[0016] The combined electronic information bulletin board of this utility model has the following advantages: This modular electronic information bulletin board uses a drive unit to provide power, which drives a gear to rotate via a transmission component and chain. The gear meshes with a toothed plate at the top, moving a U-shaped frame. A pulley on the U-shaped frame slides along a sliding support plate to maintain stability. Simultaneously, a push plate moves a pulley in the guide groove of a guide plate, which, together with a connecting block, pushes the bulletin board to move straight and then forward, unfolding it from the back of the display screen and aligning it with the side of the display screen. The gear meshes with a toothed plate at the bottom, which pulls a flexible pad through a connecting plate and a connecting plate. A sliding rod slides along the sliding frame, and a coil spring stores force, causing the flexible pad to retract to the back of the frame. When the bulletin board retracts, the coil spring causes the flexible pad to reset and unfold, achieving synchronous adjustment between the flexible pad and the bulletin board. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a front view schematic diagram of the overall structure of this utility model; Figure 2 This is a rear-view perspective view of the overall structure of this utility model; Figure 3 This is a front view assembly diagram of the overall structure of this utility model; Figure 4 This is a schematic diagram of the assembly of the display screen and the frame structure of this utility model; Figure 5 This is a schematic diagram of the assembly of the flexible pad, driving component, sliding plate, and toothed plate of this utility model. Figure 6 This is a schematic diagram of the flexible pad structure of this utility model; Figure 7 This is a schematic diagram of the assembly of the driving component and the fixed support plate structure of this utility model; Figure 8 This is a schematic diagram of the assembly of the drive component, fixed support plate, toothed plate one, and toothed plate two of this utility model. Figure 9 This is a schematic diagram of the assembly of the sliding plate, pulley one, and loop frame of this utility model. Figure 10 This is a schematic diagram of the structure of the sliding support rod and fixing block of this utility model; Figure 11 This is a schematic diagram of the assembly of the sliding support plate, pulley, and spiral frame of this utility model.

[0019] Explanation of markings in the diagram: 100, frame; 110, sunshade; 120, display screen; 121, fixing sleeve; 122, coil spring; 123, sliding frame; 200, flexible pad; 201, sliding rod; 202, auxiliary support frame; 300, notice board; 310, connecting block; 400, driving component; 401, fixed support plate; 410, transmission component; 420, gear; 430, gear plate one; 440, gear plate two; 450, connecting plate; 500, sliding support plate; 510, pulley one; 520, U-shaped frame; 600, guide plate; 601, guide groove; 610, pulley two; 620, push plate; 700, sliding support rod; 710, fixing block. Detailed Implementation

[0020] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0021] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0024] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0025] To better understand the purpose, structure, and function of this utility model, a combined electronic information bulletin board of this utility model will be described in further detail below with reference to the accompanying drawings.

[0026] like Figures 1-11As shown, this utility model discloses a combined electronic information bulletin board, including a frame 100. A sunshade 110 is mounted on the top of the frame 100 to provide sun and rain protection for the bulletin board. A display screen 120 is mounted on the front center of the frame 100 to display electronic information. Fixing sleeves 121 are bolted to both sides of the display screen 120 to mount it to the sunshade 110. The two ends of the fixing sleeves 121 are connected to the upper and lower ends of the frame 100. Flexible pads 200 are threaded along the axis on the upper and lower sides of both ends of the frame 100 to display promotional slogans. In actual use, a vertical groove is formed on the surface of the frame 100 at the point where the flexible pad 200 passes through, allowing the surface of the flexible pad 200 to slide through the groove, thus facilitating subsequent adjustment of the relative position between the flexible pad 200 and the bulletin board 300.

[0027] like Figure 3 , Figure 4 and Figure 6 As shown, the flexible pad 200 has slide rods 201 connected to both the top and bottom of its front shaft end. The top and bottom of the two fixed sleeves 121 on opposite sides have circular grooves, with coil springs 122 installed inside the grooves. A sliding frame 123 is laterally mounted on the top and bottom of the front side of the frame 100, located on one side of the fixed sleeves 121. The slide rods 201 extend into the sliding frame 123 and slide within it. The extended end of the coil spring 122 is connected to the surface of the slide rod 201. When the front end of the flexible pad 200 is pulled, the coil spring 122 can extend and store force. When the flexible pad 200 is not restrained by external force, the coil spring 122 can drive the flexible pad 200 to return to its original position. The coil spring 122 in this design can also be replaced by an elastic band.

[0028] Specifically, the top and bottom of the rear shaft end of the flexible pad 200 are connected to the auxiliary support frame 202, and the auxiliary support frame 202 is slidably connected to the rear surface of the frame 100.

[0029] Specifically, in actual use, elastic straps can be selectively installed on the surface of the auxiliary support frame 202. The end of the elastic strap away from the auxiliary support frame 202 is connected to the surface of the frame 100. The elastic strap can stretch when subjected to force, and automatically rebound when there is no external force restraint, thereby driving the flexible pad 200 to reset.

[0030] In practical use, the surface of the flexible pad 200 can be used for daily pasting of promotional slogans, or the flexible pad 200 can be used as a writing whiteboard. When used as a writing whiteboard, the material of the writing whiteboard should be flexible. The flexible material of the writing whiteboard has been recorded in the prior art and will not be described in detail in this solution.

[0031] Specifically, in addition to being used for everyday pasting of promotional slogans and as a flexible whiteboard, the flexible material properties of the flexible pad 200 can also adapt to the sliding requirements of the vertical groove of the frame 100. When unfolded, it can maintain a flat and wrinkle-free surface, making it suitable for information display in various scenarios such as community notices, campus activity announcements, and temporary corporate announcements. During the sliding adjustment process, the slide rod 201 slides stably along the slide frame 123, and the auxiliary support frame 202 slides and connects to the rear side of the frame 100, which can prevent the flexible pad 200 from sagging due to its own weight and ensure that the display surface is always upright. When the flexible pad 200 returns to its retracted state, the stored force of the coil spring 122 can quickly pull it to the preset display position, and there is no obvious shaking after unfolding. If it is necessary to switch the function, it can adapt to the needs of temporary information updates and frequent switching of display content. At the same time, when storing, the flexible pad 200 can be retracted to fit the rear side of the frame 100 without occupying additional display space, forming an efficient space complement with the unfolding or retraction of the bulletin board 300.

[0032] Specifically, in practical use, the flexible pad 200 can be used as a flexible writing whiteboard. In addition to regular writing, it can also be used for temporary handwriting interaction scenarios, such as when the community collects residents' opinions or the school launches an activity initiative, residents or teachers and students can directly write messages or feedback on the surface of the flexible pad 200. In case of emergencies, such as water and power outage notices or safety warnings, there is no need to wait for paper notices to be printed. Emergency information can be quickly handwritten and displayed, and the written content can be erased and updated at any time, adapting to the needs of high-frequency temporary information interaction.

[0033] Specifically, in practical use, the flexible material of the flexible pad 200 can be adapted to the fixing needs of roll-shaped promotional materials, such as large posters, event banners, and holiday decorations. When using it, one end of the roll-shaped promotional material is attached to the surface of the flexible pad 200 or fixed by clips. When it is necessary to change the promotional content, simply remove the old promotional material and replace it with a new roll-shaped promotional material. There is no need to disassemble the flexible pad 200 itself. It is suitable for scenarios such as shopping mall promotional posters and campus cultural festival decorations that require frequent changes of large promotional materials.

[0034] Specifically, in practical use, when paper notices on the bulletin board 300, such as important documents or easily damaged notices, require temporary protection, such as to prevent rain splashes or dust accumulation, the flexible pad 200 can be slid out from the back of the frame 100 and its surface can cover the bulletin board 300 to form a temporary protective layer. After the protection needs are met, the flexible pad 200 can be reset and retracted to the back of the frame 100 without affecting the normal use of the bulletin board 300. This is suitable for outdoor bulletin boards to cope with the emergency protection needs of short-term severe weather, such as rain showers and dust.

[0035] Specifically, in practical use, the surface of the flexible pad 200 can be divided into multiple independent areas by attaching dividers, such as magnetic dividers or removable tape, to display different types of information. For example, the left area can display community service phone numbers, the middle area can display garbage sorting guidelines, and the right area can display neighborhood mutual assistance information. The information in each area can be updated independently, and by adjusting the sliding position of the flexible pad 200, key areas, such as the latest convenient policies, can be moved to a prominent position on the bulletin board, which is suitable for communities, enterprises, and other scenarios that need to centrally display multiple types of basic information and highlight key content.

[0036] Among them, the left and right ends of the rear side of the flexible pad 200 are symmetrically provided with notice boards 300 along the axis. The notice boards 300 are used to display paper notice information. Both the flexible pad 200 and the notice boards 300 are pushed by the drive structure in the pushing mechanism.

[0037] Specifically, the rear side of the bulletin board 300 is equipped with a pushing mechanism for adjusting its position. The pushing mechanism includes a U-shaped frame 520, which is located at the rear side of the bulletin board 300. The U-shaped frame 520 is pushed by a driving structure. Both the top and bottom of the rear side of the U-shaped frame 520 are movably mounted with pulleys 510 via mounting seats. The pulleys 510, in conjunction with the driving structure, drive the U-shaped frame 520 to slide stably in the pushing direction. The pulleys 510 and the mounting seats are movably connected via bearings. Figure 9 As shown, sliding support plates 500 are installed on the top and bottom of the rear side of the frame 100, and two vertically symmetrical pulleys 510 slide in contact with the opposite side of the two vertical sliding support plates 500.

[0038] The drive structure includes two drive members 400 symmetrically arranged on the rear side of the frame 100. A fixed support plate 401 is mounted on one side of the drive member 400. The fixed end of the drive member 400 is connected to the surface of the fixed support plate 401 by fastening bolts. The upper and lower ends of the fixed support plate 401 are connected to the top and bottom of the rear side of the frame 100. Therefore, the drive member 400 is supported by the fixed support plate 401, and the drive member 400 provides power as a power source. Specifically, the fixed support plate 401 is cross-shaped, with its upper and lower ends connected to the frame 100, while its left and right ends are used to support the transmission component 410 and the gear 420, respectively.

[0039] In practical use, the drive component 400 is a geared motor or other types of motor. The selection of the drive component 400 can be made according to actual needs. This solution will not describe the drive component 400 in detail.

[0040] This solution can include an additional controller electrically connected to the drive unit 400 for simple control of the electrical components. The controller can control the forward and reverse rotation and start / stop of the drive unit 400. When it is necessary to unfold the notice board 300 and retract the flexible pad 200, the controller sends a forward rotation signal to the drive unit 400, which drives the transmission component 410 and gear 420 to rotate. When it is necessary to retract the notice board 300 and reset the flexible pad 200, the controller sends a reverse rotation signal, and the drive unit 400 rotates in the opposite direction. Simultaneously, the controller can preset the operating stroke of the drive unit 400, for example, through a program or external limit sensor, to prevent the notice board 300 and flexible pad 200 from exceeding their travel range. The operator can trigger controller commands via simple buttons or remote signals to quickly switch display modes. The controller's control of the drive unit 400 in this solution is existing technology and will not be described in detail here.

[0041] In practical use, to reduce operating costs, users can replace the drive component 400 with a throttle. The rotating shaft end of the throttle is connected to the adjacent transmission component 410, and the user only needs to crank the throttle to drive the transmission component 410 to rotate. When selecting a throttle, a limiting structure, such as a detachable bolt, can be set to limit the throttle when it is not in use, preventing the transmission component 410 from rotating on its own.

[0042] The output end of the drive component 400 and one side thereof are provided with a transmission component 410. The transmission component 410 is a sprocket, and two adjacent transmission components 410 are connected by a chain drive. In actual use, the transmission component 410 can be selected from other components that can transmit power. For example, the transmission component 410 can also be a synchronous pulley, and two adjacent synchronous pulleys are connected by a synchronous belt drive. like Figure 9 As shown, a drive shaft is connected to the center of the transmission component 410, and a gear 420 is fitted on one end of the surface of the drive shaft. Thus, when the drive component 400 is working, the power is transmitted to the gear 420 through the transmission component 410. The gear 420 is used to move the first gear plate 430 and the second gear plate 440 respectively.

[0043] A gear 420 is meshed with a toothed plate 430 above it, and one side of the toothed plate 430 is connected to the surface of the circular frame 520 via a support rod. Thus, under the cooperation of the gear 420 and the toothed plate 430, the circular frame 520 can be moved so that it can be moved in conjunction with other parts to move the bulletin board 300.

[0044] The pushing mechanism also includes guide plates 600 located at the top and bottom of the rear side of the frame 100. The surface of the guide plate 600 is provided with a guide groove 601, and a pulley 610 is slidably provided in the inner cavity of the guide groove 601. The guide groove 601 can change the moving direction of the pulley 610. The pulley 610 is movably connected to the shaft end of the adjacent push plate 620 through a bearing.

[0045] Specifically, the guide plate 600 is L-shaped, and the bend of the guide groove 601 is rounded. The rounded corners are adapted to the shape of the pulley 610. When the loop frame 520 is subjected to force and moves, it can drive the pulley 510 to roll on one side of the sliding support plate 500, increasing its movement stability. With the cooperation of the loop frame 520, the connecting block 310, the pulley 610, the guide plate 600, and the guide groove 601, the bulletin board 300 can be moved forward after moving a certain distance, so that the bulletin board 300 located behind the display screen 120 can be unfolded outward and aligned with the side of the display screen 120.

[0046] like Figure 9 As shown, push plates 620 are movably mounted on the top and bottom of the U-shaped frame 520 via pivots. There are four push plates 620 on the U-shaped frame 520, and they are installed in pairs at the top and bottom ends of the U-shaped frame 520. Connecting blocks 310 are connected to the four corners of the rear side of the bulletin board 300. The side of the push plate 620 away from the U-shaped frame 520 is movably connected to the adjacent connecting block 310 via a pivot.

[0047] Therefore, when the U-shaped frame 520 moves, pulley 1 510 moves linearly on the surface of the sliding plate 500, while pulley 2 610 on part of the push plate 620 moves in the guide groove 601, and at the same time as the push plate 620 moves, it cooperates with the connecting block 310 to push the bulletin board 300 to move.

[0048] like Figure 8 The gear 420 is meshed with a toothed plate 440 on its lower side. The toothed plate 440 is used to pull the flexible pad 200. One side of the bottom of the toothed plate 440 is connected to a connecting plate 450 through a connecting plate. The connecting plate 450 is fixedly connected to the side opposite to the flexible pad 200. Therefore, when the toothed plate 440 is displaced by force, it can drive the connecting plate 450 to move, and then pull the adjacent flexible pad 200 to move. This allows the flexible pad 200 to retract to the rear side of the frame 100 when the notice board 300 is extended outward. Similarly, when the notice board 300 is retracted inward, the flexible pad 200 can be extended outward.

[0049] As a further optimization of this solution, one end of the connecting plate connected to the bottom of the toothed plate 440 can be slidably connected to the bottom of the cross-shaped fixed support plate 401. The bottom of the fixed support plate 401 is provided with a limiting groove, and the inner cavity of the limiting groove is slidably provided with a limiting slider. The connecting plate is connected to the limiting slider to assist in the movable support of the toothed plate 440.

[0050] like Figure 11As shown, as a further optimization of this solution, instead of the aforementioned limiting groove and limiting slider support method, the bottom connecting plate of the driving component 400 has a through hole, and a sliding support rod 700 is installed through the through hole. One end of the sliding support rod 700 is connected to the fixing block 710 connected to the surface of the fixed support plate 401, thereby assisting in the sliding support of the toothed plate 440.

[0051] This solution, under the action of the pushing mechanism, can adjust the positions of the flexible pad 200 and the bulletin board 300 respectively, so that when using the flexible pad 200, the position of the bulletin board 300 can be adjusted in conjunction with it, and when using the bulletin board 300, the position of the flexible pad 200 can be adjusted in conjunction with it, without the need for cumbersome manual operation.

[0052] In summary, when the modular electronic information bulletin board is in operation, the drive unit 400 provides power, which drives the gear 420 to rotate through the transmission unit 410 and chain transmission. The gear 420 meshes with the toothed plate 430, causing the circular frame 520 to move. The pulley 510 on the circular frame 520 slides along the sliding support plate 500 to maintain stability. At the same time, the push plate 620 drives the pulley 610 to move within the guide groove 601 of the guide plate 600, which, together with the connecting block 310, pushes the bulletin board 300 to move first. The device moves forward and then backward, unfolding from the rear of the display screen 120 and aligning it with the side of the display screen. The gear 420 meshes with the toothed plate 440 below. The toothed plate 440 pulls the flexible pad 200 through the connecting plate and the connecting plate 450. The slide rod 201 slides along the slide frame 123, and the coil spring 122 stores force, causing the flexible pad 200 to retract to the rear of the frame 100. When the bulletin board 300 retracts, the coil spring 122 drives the flexible pad 200 to reset and unfold, achieving synchronous adjustment between the flexible pad 200 and the bulletin board 300.

[0053] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A combined electronic information bulletin board, characterized in that: The device includes a frame (100), on which a display screen (120) is mounted in the middle of the front side. Flexible pads (200) are provided along the axis on the upper and lower sides of the left and right ends of the frame (100). Announcement boards (300) are symmetrically provided along the axis on the left and right ends of the rear side of the flexible pads (200). The bulletin board (300) is provided with a pushing mechanism for adjusting its position on the rear side. The pushing mechanism includes a spiral frame (520). The spiral frame (520) is located on the rear side of the bulletin board (300). The spiral frame (520) is pushed by a driving structure. The top and bottom of the spiral frame (520) are movably mounted with pulleys (510) through mounting seats. The pulleys (510) cooperate with the driving structure to drive the spiral frame (520) to slide stably in the pushing direction.

2. The combined electronic information bulletin board according to claim 1, characterized in that: A sunshade (110) is mounted on the top of the frame (100), and fixing sleeves (121) are fastened to both sides of the display screen (120) by bolts. The fixing sleeves (121) are used to install the display screen (120) onto the sunshade (110).

3. The combined electronic information bulletin board according to claim 2, characterized in that: The flexible pad (200) has a slide rod (201) connected to the top and bottom of the front shaft end. The top and bottom of the two fixed sleeves (121) on opposite sides have circular grooves. The fixed sleeves (121) are installed in the inner cavity of the circular grooves. The top and bottom of the front side of the frame (100) and the side of the fixed sleeves (121) are horizontally supported by a slide frame (123). The slide rod (201) extends into the slide frame (123) and slides inside it.

4. The combined electronic information bulletin board according to claim 3, characterized in that: The drive structure includes two drive members (400) symmetrically arranged on the rear side of the frame (100), and a fixed support plate (401) is mounted on one side of the drive member (400), the fixed support plate (401) being cross-shaped.

5. The combined electronic information bulletin board according to claim 4, characterized in that: The output end of the drive component (400) and one side thereof are provided with a transmission component (410). Two adjacent transmission components (410) are connected by a chain drive. The center of the transmission component (410) is connected to a drive shaft, and a gear (420) is sleeved on one end of the surface of the drive shaft.

6. The combined electronic information bulletin board according to claim 5, characterized in that: The gear (420) is meshed with a toothed plate (430) on its upper side, and one side of the toothed plate (430) is connected to the surface of the spiral frame (520) via a support rod.

7. The combined electronic information bulletin board according to claim 6, characterized in that: The pushing mechanism also includes guide plates (600) set at the top and bottom of the rear side of the frame (100). The surface of the guide plate (600) is provided with a guide groove (601), and a pulley (610) is slidably provided in the inner cavity of the guide groove (601). The guide groove (601) can change the moving direction of the pulley (610).

8. The combined electronic information bulletin board according to claim 7, characterized in that: The top and bottom of the spiral frame (520) are movably mounted with push plates (620) via pivots, and the four corners of the back of the bulletin board (300) are connected with connecting blocks (310). The side of the push plate (620) away from the spiral frame (520) is movably connected to the adjacent connecting block (310) via pivots.

9. The combined electronic information bulletin board according to claim 8, characterized in that: The top and bottom of the rear side of the frame (100) are equipped with sliding support plates (500), and two vertically symmetrical pulleys (510) slide in contact with the opposite side of the two vertical sliding support plates (500).

10. The combined electronic information bulletin board according to claim 5, characterized in that: The gear (420) is meshed with a toothed plate (440) on its lower side. The toothed plate (440) is used to pull the flexible pad (200). A connecting plate (450) is connected to one side of the bottom of the toothed plate (440) through a connecting plate.

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