Portable popular science education propaganda frame

Abstract

The utility model relates to the technical field of science popularization education, and discloses a portable science popularization education propaganda frame which comprises a supporting frame, a propaganda board is fixedly connected to the middle of the inner wall of the supporting frame, a supporting block is fixedly connected to the rear side of the outer wall of the propaganda board, and first gear rods are rotationally connected to the left side and the right side of the top of the supporting block; second gear rods are rotationally connected to the left side and the right side of the bottom of the supporting block, a baffle is fixedly connected to the rear side of the outer wall of the supporting block, folding mechanisms are fixedly connected to the left side and the right side of the bottom of the supporting frame, and the folding mechanisms are used for conveniently folding the propaganda frame supporting legs. The first gear rod and the second gear rod are meshed and rotate to synchronously drive the first stretching plate and the second stretching plate which are connected to move, the second stretching plate is connected with the extension plate through the rotating shaft, the area of the publicity board is increased when the publicity board is unfolded, carrying is convenient when the publicity board is folded, the supporting block is fixed to the rear side of the publicity board, supporting is provided for components such as the gear rods, and stable work is ensured.

Description

Technical Field

[0001] This utility model relates to the field of science popularization and education technology, and in particular to a portable science popularization and education publicity stand. Background Technology

[0002] Popular science education refers to educational activities that widely disseminate scientific knowledge, methods, ideas, and spirit to the public through various channels and methods, with the aim of improving public scientific literacy. Popular science education plays a vital role in enhancing public scientific literacy and promoting social development. Its audience is broad, covering people of all ages, professions, and social strata, aiming to bring scientific knowledge into people's lives and thus promote the improvement of the scientific and cultural level of the whole society.

[0003] Portable science education display stands are mobile devices specifically designed for science education and promotion activities. They are easy to move and carry, adapting to the mobile display needs of different locations. They are used to display science pictures and text descriptions, intuitively disseminating science knowledge. They can be adjusted and combined according to science themes and content, and materials can be easily replaced to meet diverse promotional needs. They can attract public attention and improve the effectiveness of science education. However, due to their portable design, existing portable science education display stands are not very large in overall size, resulting in relatively small display space. They cannot display a large number of exhibits and detailed information like large fixed exhibitions, making it difficult to present some complex and rich science content comprehensively and in-depth. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a portable science education display stand, which aims to improve the problem that the existing technology has a relatively small display space due to its small overall size, making it difficult to present some complex and rich science content in a comprehensive and in-depth manner.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a portable science education display stand, including a support frame, a display board fixedly connected to the middle of the inner wall of the support frame, a support block fixedly connected to the rear side of the outer wall of the display board, a gear rod rotatably connected to the top left and right sides of the support block, a gear rod rotatably connected to the bottom left and right sides of the support block, the gear rod 1 and the gear rod 2 meshing with each other, a tension plate 1 rotatably connected to one side of the outer wall of both the gear rod 1 and the gear rod 2, a tension plate 2 rotatably connected to the opposite side of the outer wall of the tension plate 1, a rotating shaft rotatably connected to the adjacent side of the outer wall of the tension plate 2, an extension plate rotatably connected to the front side of the outer wall of the rotating shaft, a baffle fixedly connected to the rear side of the outer wall of the support block, and a folding mechanism fixedly connected to the bottom left and right sides of the support frame, the folding mechanism being used for convenient folding of the display stand legs.

[0006] As a further description of the above technical solution:

[0007] The folding mechanism includes a connecting frame 1, which is fixedly connected to the bottom left and right sides of the support frame. A folding frame 1 is rotatably connected to the middle of the inner wall of the connecting frame 1. An adjusting block 1 is rotatably connected to the bottom of the inner wall of the connecting frame 1. An adjusting block 2 is rotatably connected to the bottom of the inner wall of the adjusting block 1. An adjusting block 2 is rotatably connected to the middle of the inner wall of the adjusting block 2. A telescopic rod is fixedly connected to the middle of the inner wall of the adjusting block 2. A folding frame 2 is fixedly connected to the bottom of the outer wall of the folding frame 1. The other end of the telescopic rod is rotatably connected to the top of the inner wall of the folding frame 2. A connecting frame 2 is rotatably connected to the bottom of the outer wall of the folding frame 2.

[0008] As a further description of the above technical solution:

[0009] Both of the inner walls of the two connecting frames are fixedly connected to the bottom of the frame, and the top front and rear sides of the frame are fixedly connected to the diagonal braces.

[0010] As a further description of the above technical solution:

[0011] The bottom of the leg is threaded with a bolt on both the front and rear sides, and foot pads are fixedly connected to the bottom of the outer wall of each bolt.

[0012] As a further description of the above technical solution:

[0013] The support frame is fixedly connected to the left and right sides of its bottom, and a connecting plate is fixedly connected to the adjacent side of the bottom of the support frame.

[0014] As a further description of the above technical solution:

[0015] An adjusting rod is slidably connected to the middle of the inner wall of the fixing frame, and a support rod is rotatably connected to the middle of the outer wall of the connecting plate.

[0016] As a further description of the above technical solution:

[0017] A handle is fixedly connected to each side of the outer wall of the extension plate away from the other side, and two bolts are threaded to the upper and lower ends of the outer wall of the handle.

[0018] As a further description of the above technical solution:

[0019] A sliding groove is provided in the middle of the inner wall of the support frame, and sliding strips are fixedly connected to the outer wall of the baffle.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, gear rod one and gear rod two mesh with each other, and when they rotate, they synchronously drive the connected tension plate one and tension plate two to move, ensuring the stable unfolding and retraction of the advertising rack. Tension plate two is connected to extension plate through a rotating shaft, which increases the advertising board area when unfolded and makes it easy to carry when retracted. Support block is fixed to the rear side of the advertising board to provide support for components such as gear rods and ensure stable operation. Baffle is fixed to the rear side of support block to protect components from damage and block dust and debris.

[0022] 2. In this utility model, the connecting frame 1 is fixed to the bottom of the support frame and is rotatably connected to the folding frame 1 to realize the bottom folding function. The folding frame 1 can be folded or unfolded towards the support frame. The relative rotation of the adjusting block 1 and the adjusting block 2 can adjust the included angle between the folding frame 1 and the connecting frame 1 to adapt to different space requirements. One end of the telescopic rod is fixed to the adjusting block 2, and the other end is connected to the folding frame 2. The folding frame 2 is rotatably connected to the folding frame 1 and the connecting frame 2 to ensure the stability and reliability of the folding structure. Attached Figure Description

[0023] Figure 1 This is a three-dimensional view of the portable science education display stand proposed in this utility model;

[0024] Figure 2 This is a front view of the portable science education display stand proposed in this utility model;

[0025] Figure 3 This is a structural exploded view of the portable science education display stand proposed in this utility model;

[0026] Figure 4 This is a partial structural exploded view of the portable science education display stand proposed in this utility model;

[0027] Figure 5 This is a breakdown diagram of the folding mechanism of the portable science education display stand proposed in this utility model.

[0028] Legend:

[0029] 1. Support frame; 2. Folding mechanism; 201. Connecting frame one; 202. Folding frame one; 203. Adjusting block one; 204. Adjusting block two; 205. Telescopic rod; 206. Folding frame two; 207. Connecting frame two; 3. Advertising board; 4. Support block; 5. Gear rod one; 6. Gear rod two; 7. Tension plate one; 8. Tension plate two; 9. Rotating shaft; 10. Extension plate; 11. Baffle; 12. Leg; 13. Diagonal brace; 14. Bolt one; 15. Foot pad; 16. Fixing frame; 17. Connecting plate; 18. Adjusting rod; 19. Support rod; 20. Handle; 21. Bolt two; 22. Slide groove; 23. Slide bar. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a portable science education display stand, including a support frame 1. A display board 3 is fixedly connected to the middle of the inner wall of the support frame 1. A support block 4 is fixedly connected to the rear side of the outer wall of the display board 3. A gear rod 5 is rotatably connected to the top left and right sides of the support block 4. A gear rod 6 is rotatably connected to the bottom left and right sides of the support block 4. The gear rod 5 and the gear rod 6 are meshed. A tension plate 7 is rotatably connected to one side of the outer wall of both the gear rod 5 and the gear rod 6. A tension plate 8 is rotatably connected to the opposite side of the outer wall of the tension plate 7. A rotating shaft 9 is rotatably connected to the adjacent side of the outer wall of the tension plate 8. An extension plate 10 is rotatably connected to the front side of the outer wall of the rotating shaft 9. A baffle 11 is fixedly connected to the rear side of the outer wall of the support block 4. A folding mechanism 2 is fixedly connected to the left and right sides of the bottom of the support frame 1. The folding mechanism 2 is used to conveniently fold the legs of the display stand. A fixing frame 16 is fixedly connected to the left and right sides of the bottom of the support frame 1. A connecting plate 17 is fixedly connected to the adjacent side of the bottom of the support frame 1.

[0032] Specifically, gear rod 5 and gear rod 6 mesh with each other, and when they rotate, they synchronously drive the connected tension plate 7 and tension plate 8 to move, ensuring the stable unfolding and folding of the advertising frame. The tension plate 8 increases or decreases the area of ​​the advertising board 3 through the rotating shaft 9 and the extension plate 10. The support block 4 and the baffle 11 provide fixation and protection to prevent damage to the components and keep them clean. The folding mechanism 2 facilitates the folding of the advertising frame legs. The bottom left and right sides of the support frame 1 are fixedly connected to the fixing frame 1, which not only ensures the stability of the support frame 1, but also greatly enhances the connection of its structure. In addition, on the adjacent side of the bottom of the support frame 1, there are also fixed connecting plates 17. These connecting plates 17 further strengthen the connection between the support frame 1 and other structural components, ensuring the stability and durability of the overall structure.

[0033] Reference Figure 1 , Figure 2 and Figure 5The folding mechanism 2 includes a connecting frame 201, which is fixedly connected to the bottom left and right sides of the support frame 1. A folding frame 202 is rotatably connected to the middle of the inner wall of the connecting frame 201. An adjusting block 203 is rotatably connected to the bottom of the inner wall of the connecting frame 201. An adjusting block 204 is rotatably connected to the bottom of the inner wall of the adjusting block 203. The adjusting block 204 is rotatably connected to the middle of the inner wall of the folding frame 202. A telescopic rod 205 is fixedly connected to the middle of the inner wall of the adjusting block 204. A folding frame 206 is fixedly connected to the bottom of the outer wall of frame 202. The other end of the telescopic rod 205 is rotatably connected to the top of the inner wall of folding frame 206. A connecting frame 207 is rotatably connected to the bottom of the outer wall of folding frame 206. A leg 12 is fixedly connected to the bottom of the inner wall of both connecting frames 207. A diagonal brace 13 is fixedly connected to the front and rear sides of the top of the leg 12. A bolt 14 is threadedly connected to the front and rear sides of the bottom of the leg 12. A foot pad 15 is fixedly connected to the bottom of the outer wall of multiple bolts 14.

[0034] Specifically, connecting frame 1 201 is fixed to the bottom of support frame 1 and rotatably connected to folding frame 1 202 to achieve bottom folding function. Folding frame 1 202 can be folded or unfolded towards support frame 1. The relative rotation of adjusting block 1 203 and adjusting block 2 204 can adjust the angle between folding frame 1 202 and connecting frame 1 201 to adapt to different space requirements. One end of telescopic rod 205 is fixed to adjusting block 2 204, and the other end is connected to folding frame 2 206 to provide support force and keep the advertising frame stable. Folding frame 2 206 is rotatably connected to folding frame 1 202 and connecting frame 2 207 to transmit force and ensure the stability of the folding structure. To ensure reliability, the bottom inner walls of both connecting frames 207 are fixedly connected to legs 12, the top front and rear sides of legs 12 are fixedly connected to diagonal braces 13, the bottom front and rear sides of legs 12 are threadedly connected to bolts 14, and the bottom outer walls of multiple bolts 14 are fixedly connected to foot pads 15. The legs 12 fixed at the bottom of the two connecting frames 207, together with the diagonal braces 13 fixed at the top front and rear sides, form a stable support structure, enhancing the stability of the advertising rack when placed. The bolts 14 threaded at the bottom front and rear sides of legs 12 can adjust the height of the foot pads 15 to adapt to different ground conditions and ensure that the advertising rack is placed stably.

[0035] Reference Figure 1 , Figure 2 and Figure 3 An adjusting rod 18 is slidably connected to the middle of the inner wall of the fixed frame 16. A support rod 19 is rotatably connected to the middle of the outer wall of the connecting plate 17. A handle 20 is fixedly connected to the outer wall of the extension plate 10 on the side away from each other. Bolts 21 are threadedly connected to the upper and lower ends of the outer wall of the handle 20. A sliding groove 22 is opened in the middle of the inner wall of the support frame 1. Sliding strips 23 are fixedly connected to the four sides of the outer wall of the baffle 11.

[0036] Specifically, the adjusting rod 18 inside the fixed frame 16 can slide to achieve position adjustment; the support rod 19 rotatably connected to the connecting plate 17 is used for auxiliary support; the handle 20 on the outside of the extension plate 10 is convenient for manual operation, and its grip state can be fixed by bolt 21; the sliding groove 22 on the inner wall of the support frame 1 cooperates with the sliding strip 23 around the baffle 11, so that the baffle 11 can move smoothly when the advertising rack is moved or the angle is adjusted, ensuring the stable operation of the internal structure.

[0037] Working principle: Gear rod 5 and gear rod 6 mesh with each other. When one gear rod rotates, it drives the other gear rod to rotate synchronously. Since tension plate 7 is rotatably connected to one side of the outer wall of both gear rod 5 and gear rod 6, when the gear rod rotates, it drives tension plate 8 to move through tension plate 7. This gear transmission method ensures that the movement of tension plate 7 and tension plate 8 is synchronous and stable, thereby realizing the unfolding and folding of the advertising rack. A rotating shaft 9 is rotatably connected to the adjacent side of the outer wall of tension plate 8. An extension plate 10 is rotatably connected to the front side of the outer wall of the rotating shaft 9. When the advertising rack is unfolded, the movement of tension plate 8 will drive the extension plate 10 to rotate and unfold through the rotating shaft 9, increasing the overall size of the advertising board 3. When folded up, the extension plate 10 can rotate around the pivot 9 and fit against the advertising board 3 or the stretching plate, making it easy to carry and store. The support block 4 is fixed to the rear side of the outer wall of the advertising board 3, providing support and fixation for components such as gear rod 1 5 and gear rod 2 6, ensuring that they can work stably. The baffle 11 is fixed to the rear side of the outer wall of the support block 4, which on the one hand can protect components such as gear rod 1 5 and gear rod 2 6 from external collisions or damage, and on the other hand can also block dust and other debris from entering the interior of the advertising rack to a certain extent, keeping the internal components clean, reducing the overall volume, increasing the display space, making it easier to deal with some complex and rich popular science content, and presenting the publicity content comprehensively and in-depth.

[0038] Connecting frame 1 201 is fixed to the bottom of support frame 1. Folding frame 1 202 is rotatably connected to connecting frame 1 201, allowing folding frame 1 202 to rotate around the rotation point of connecting frame 1 201, thus realizing the folding function of the bottom of the advertising rack for easy carrying and storage. When the advertising rack needs to be folded, folding frame 1 202 can rotate towards support frame 1; when unfolded, it rotates away from support frame 1. Adjusting block 1 203 is rotatably connected to connecting frame 1 201 and adjusting block 2 204 in sequence, with adjusting block 2 204 located in the middle of the inner wall of folding frame 1 202. By rotating adjusting block 1 203 and adjusting block 2 204 relative to each other, the angle between folding frame 1 202 and connecting frame 1 201 can be changed, thereby adjusting the folding angle of the advertising rack to adapt to different storage spaces and carrying needs, ensuring the structural sturdiness during folding and unfolding. One end of telescopic rod 205 is fixed to the middle of the inner wall of adjusting block 2 204, and the other end is rotatably connected to At the top of the inner wall of folding frame 206, when folding frame 1 202 rotates, the telescopic rod 205 extends and retracts with the change in distance between folding frame 1 202 and folding frame 206. In the unfolded state of the advertising frame, the telescopic rod 205 provides support, keeping folding frame 1 202 and folding frame 206 at a stable angle, thus stably supporting support frame 1 and the entire advertising frame. During the folding process, the telescopic rod 205 can retract according to the change in the relative position of folding frame 1 202 and folding frame 206, without affecting the smooth progress of the folding action. Folding frame 206 is rotatably connected to folding frame 1 202 and connecting frame 207, respectively. It plays the role of connection and force transmission in the entire structure. When the advertising frame is folded or unfolded, folding frame 206 rotates with the rotation of folding frame 1 202 and transmits force through the telescopic rod 205, so that the entire folding structure works in concert, ensuring the stability and reliability of the advertising frame in different states.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable science education display stand, including a support frame (1), characterized in that: A propaganda board (3) is fixedly connected to the middle of the inner wall of the support frame (1). A support block (4) is fixedly connected to the rear side of the outer wall of the propaganda board (3). A gear rod (5) is rotatably connected to the top left and right sides of the support block (4). A gear rod (6) is rotatably connected to the bottom left and right sides of the support block (4). The gear rod (5) meshes with the gear rod (6). A tension plate (7) is rotatably connected to one side of the outer wall of both the gear rod (5) and the gear rod (6). A tension plate (8) is rotatably connected to the opposite side of the outer wall of the tension plate (7). A rotating shaft (9) is rotatably connected to the adjacent side of the outer wall of the tension plate (8). An extension plate (10) is rotatably connected to the front side of the outer wall of the rotating shaft (9). A baffle (11) is fixedly connected to the rear side of the outer wall of the support block (4). A folding mechanism (2) is fixedly connected to the bottom left and right sides of the support frame (1). The folding mechanism (2) is used to conveniently fold the legs of the propaganda frame.

2. The portable science education display stand according to claim 1, characterized in that: The folding mechanism (2) includes a connecting frame one (201), which is fixedly connected to the bottom left and right sides of the support frame (1). A folding frame one (202) is rotatably connected to the middle of the inner wall of the connecting frame one (201). An adjusting block one (203) is rotatably connected to the bottom of the inner wall of the connecting frame one (201). An adjusting block two (204) is rotatably connected to the bottom of the inner wall of the adjusting block one (203). The adjusting block two (204) is rotatably connected to the middle of the inner wall of the folding frame one (202). A telescopic rod (205) is fixedly connected to the middle of the inner wall of the adjusting block two (204). A folding frame two (206) is fixedly connected to the bottom of the outer wall of the folding frame one (202). The other end of the telescopic rod (205) is rotatably connected to the top of the inner wall of the folding frame two (206). A connecting frame two (207) is rotatably connected to the bottom of the outer wall of the folding frame two (206).

3. The portable science education display stand according to claim 2, characterized in that: Both of the inner walls of the two connecting frames (207) are fixedly connected to the bottom of the frame, and the top front and rear sides of the frame (12) are fixedly connected to the diagonal brace (13).

4. The portable science education display stand according to claim 3, characterized in that: The bottom front and rear sides of the foot (12) are threaded with bolts (14), and foot pads (15) are fixedly connected to the bottom of the outer wall of the bolts (14).

5. The portable science education display stand according to claim 1, characterized in that: The bottom left and right sides of the support frame (1) are fixedly connected to the fixing frame (16), and the bottom adjacent side of the support frame (1) is fixedly connected to the connecting plate (17).

6. The portable science education display stand according to claim 5, characterized in that: An adjusting rod (18) is slidably connected to the middle of the inner wall of the fixing frame (16), and a support rod (19) is rotatably connected to the middle of the outer wall of the connecting plate (17).

7. The portable science education display stand according to claim 1, characterized in that: A handle (20) is fixedly connected to the outer wall of the extension plate (10) on the side away from each other, and two bolts (21) are threadedly connected to the upper and lower ends of the outer wall of the handle (20).

8. The portable science education display stand according to claim 1, characterized in that: The inner wall of the support frame (1) is provided with a sliding groove (22), and the outer wall of the baffle (11) is fixedly connected with sliding strips (23).

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