A bulletin board

Abstract

The utility model discloses a propaganda column belongs to propaganda column technical field, include: propaganda frame, the upper end fixedly connected with rain shelter of propaganda frame, the inner wall both sides of propaganda frame are all seted up with the sliding slot, is fixedly connected with the bearing plate between the bottom of two groups of sliding slot, the upper end of bearing plate and be located between two sliding slots is provided with the propaganda assembly of being favorable to the replacement of the thought politics board, the propaganda assembly includes the protection cover, the bottom plate and the rotating rod, the inner wall both sides fixedly connected with the tooth plate no.

Description

Technical Field

[0001] This utility model specifically relates to a bulletin board, belonging to the technical field of bulletin board technology. Background Technology

[0002] A bulletin board is a traditional propaganda tool, commonly found in public places such as schools, communities, and enterprises. It is primarily used to display ideological and political content for educational guidance and cultural promotion. A bulletin board typically consists of one or more display panels, which can be made of wood, metal, glass, or other materials and are fixed to a wall or specific bracket. The panels are usually divided into different areas or sections to categorize and display different content.

[0003] Currently, the transparent protective shell and frame of the bulletin board are mostly connected by hinges. When it is necessary to change the internal publicity content, the operator needs to open the edge of the protective shell and tilt it outward at a certain angle. After the protective shell and frame form enough operating space, the operator can then reach into the bulletin board to take out the old content board and replace it with the new content board. Finally, the operator has to push the protective shell in the opposite direction to close it back to its original position. This operation is cumbersome and inconvenient for changing the ideological and political content board. Utility Model Content

[0004] The purpose of this utility model is to provide a bulletin board that addresses the shortcomings of existing technologies, thereby achieving the aforementioned objectives.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a propaganda rack, wherein a rain shelter is fixedly connected to the upper end of the propaganda rack, and sliding grooves are provided on both sides of the inner wall of the propaganda rack. A support plate is fixedly connected between the bottom of the two sets of sliding grooves, and a propaganda component that facilitates the replacement of the ideological and political propaganda board is provided at the upper end of the support plate and between the two sliding grooves. The advertising component includes a protective cover, a base plate, and a rotating rod. The protective cover is located on the upper end of the support plate. A toothed plate is fixedly connected to both sides of the inner wall of the protective cover. A content plate is fixedly connected to the upper end of the base plate. A toothed plate is fixedly connected to both sides of the upper end of the base plate and the content plate. A gear is fixedly connected to the outer wall of the rotating rod.

[0006] Furthermore, the left and right sides of the protective cover are slidably connected to the inner wall of the slide groove, and the front and rear sides of the protective cover are provided with grooves. The two ends of the rotating rod pass through the grooves and are rotatably connected to the inner wall of the slide groove. A clearance groove for a clearance gear is formed between the protective cover and the toothed plate.

[0007] Furthermore, the lower end of the support plate is provided with a through hole, the bottom plate passes through the through hole, and a handle is fixedly connected to the lower end of the bottom plate.

[0008] Furthermore, sealing gaskets are installed on the bottom of the protective cover and the surface of the support plate, and sealing gaskets are installed on the outer wall of the base plate and the inner wall of the through hole.

[0009] Furthermore, the height of the second toothed plate is higher than that of the inner plate, and both the front and rear sides of the second toothed plate are slidably connected to the inner wall of the protective cover via sliders. The inner wall of the protective cover is provided with a moving groove adapted to the slider.

[0010] Furthermore, the lower end of the advertising rack is fixedly connected to two bases, and the inner wall of the advertising rack and the lower end of the support plate are fixedly connected to a limiting frame. The upper end of the limiting frame is rotatably connected to a hook via a rotating shaft.

[0011] Furthermore, the gear is located between toothed plate one and toothed plate two, and the gear meshes with toothed plate one and toothed plate two.

[0012] Beneficial effects: Pulling the handle lowers the content panel, while gear transmission raises the protective cover, eliminating the need to manually lift it. Furthermore, the lowered content panel makes it easier for staff to replace the content panel, improving replacement efficiency. Sealing gaskets are installed at the connection between the lower end of the protective cover and the support plate, as well as at the connection between the bottom plate and the through hole. When closed, these gaskets completely fill the gaps, effectively preventing dust, rainwater, insects, and other substances from seeping in. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the unfolded structure of the content panel of this utility model; Figure 3 This is a schematic diagram of the protective cover structure of this utility model; Figure 4 This is a schematic cross-sectional view of the protective cover of this utility model; Figure 5 This is a schematic diagram of the advertising rack structure of this utility model.

[0014] In the diagram: 1. Advertising rack; 2. Rain shelter; 3. Slide; 4. Support plate; 5. Advertising components; 501. Protective cover; 502. Base plate; 503. Toothed plate one; 504. Content plate; 505. Toothed plate two; 506. Rotating rod; 507. Gear; 5011. Slot; 401. Through hole; 5021. Handle; 101. Base; 102. Limiting frame; 103. Hook. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-5 As shown, a bulletin board includes: a bulletin board 1, a rain shelter 2 fixedly connected to the upper end of the bulletin board 1, and sliding grooves 3 on both sides of the inner wall of the bulletin board 1. If impurities block the sliding grooves 3, they can be cleaned manually to avoid affecting the sliding of the protective cover 501 in the sliding grooves 3. A support plate 4 is fixedly connected between the bottom of the two sets of sliding grooves 3. A publicity component 5 that facilitates the replacement of the ideological and political bulletin board is set at the upper end of the support plate 4 and between the two sliding grooves 3. The promotional component 5 includes a protective cover 501, a base plate 502, and a rotating rod 506. The protective cover 501 is located on the upper end of the support plate 4 and is made of transparent acrylic. Toothed plates 503 are fixedly connected to both sides of the inner wall of the protective cover 501. A content plate 504 is fixedly connected to the upper end of the base plate 502. Toothed plates 505 are fixedly connected to both sides of the content plate 504 on the upper end of the base plate 502. A gear 507 is fixedly connected to the outer wall of the rotating rod 506. When the content plate 504 descends with the base plate 502, the toothed plates 505 drive the gears 507 to rotate, thereby driving the toothed plates 503 to rise synchronously with the protective cover 501. This eliminates the need to manually lift the protective cover 501, and the descending content plate 504 also facilitates the replacement of ideological and political materials.

[0017] The left and right sides of the protective cover 501 are slidably connected to the inner wall of the slide groove 3. The front and rear sides of the protective cover 501 are provided with grooves 5011. The two ends of the rotating rod 506 pass through the grooves 5011 and are rotatably connected to the inner wall of the slide groove 3. When the base plate 502 is pulled down to move the toothed plate 505, the gear 507 rotates in the groove 5011 through the rotating rod 506. At the same time, the protective cover 501 rises along the slide groove 3. The groove 5011 ensures that the rotating rod 506 does not have a rigid collision with the protective cover 501 during rotation.

[0018] The lower end of the support plate 4 has a through hole 401, and the base plate 502 passes through the through hole 401. A handle 5021 is fixedly connected to the lower end of the base plate 502. The handle 5021 allows the operator to pull the base plate 502 down along the through hole 401, so that the inner plate 504 can be lowered for replacement.

[0019] Sealing gaskets are installed on the bottom of the protective cover 501 and the surface of the support plate 4, and sealing gaskets are also installed on the outer wall of the base plate 502 and the inner wall of the through hole 401. The sealing gaskets ensure that the lower end of the protective cover 501 fits tightly against the support plate 4; the sealing gaskets also prevent dust from seeping in from the gap between the base plate 502 and the through hole 401.

[0020] The second toothed plate 505 is higher than the inner plate 504. Both the front and rear sides of the second toothed plate 505 are slidably connected to the inner wall of the protective cover 501 via sliders. The inner wall of the protective cover 501 has a moving groove adapted to the slider. The second toothed plate 505 slides up and down along the moving groove on the inner wall of the protective cover 501 via the slider, ensuring the stability of the inner plate 504 during lifting and lowering, while also improving the stability of the transmission of the second toothed plate 505.

[0021] Two bases 101 are fixedly connected to the lower end of the advertising rack 1. A limiting frame 102 is fixedly connected to the inner wall of the advertising rack 1 and the lower end of the support plate 4. A hook 103 is rotatably connected to the upper end of the limiting frame 102 via a pivot. The two bases 101 improve the stability of the advertising rack 1. When the base plate 502 is pulled down, the hook 103 on the limiting frame 102 can limit the handle 5021 to prevent the base plate 502 from returning to its original position. At the same time, it is convenient for staff to replace the ideological and political content on the content board 504.

[0022] Gear 507 is located between toothed plate 1 503 and toothed plate 2 505, and gear 507 meshes with toothed plate 1 503 and toothed plate 2 505. When the base plate 502 is pulled down, it causes toothed plate 2 505 to move downward, which in turn causes toothed plate 1 503 to move upward through gear 507, thereby causing the protective cover 501 to rise.

[0023] The implementation principle of a publicity board according to an embodiment of this application is as follows: The publicity board is used for ideological and political publicity. When in use, publicity is carried out through the ideological and political publicity materials on the content board 504. At the same time, the protective cover 501 protects the ideological and political publicity materials on the content board 504 to prevent damage. When it is necessary to replace the ideological and political publicity materials, the staff pulls down the handle 5021 to drive the base plate 502 to slide down along the inner wall of the through hole 401. At the same time, the content board 504 and the second toothed plate 505 move down synchronously. When the second toothed plate 505 moves down, it drives the gear 507 to rotate around the rotating rod 506, and through meshing, drives the first toothed plate 503 to move up, thereby causing the protective cover 501 to move up along the slide groove 3. When the base plate 502 is pulled down to the content board 504, the publicity board is completed. When 4 is fully exposed, staff can hang the handle 5021 on the hook 103 for easy replacement of ideological and political propaganda documents. After the ideological and political propaganda documents are replaced, staff only need to remove the handle 5021 from the hook 103. At this time, the base plate 502 will slide upward under the weight of the protective cover 501 and the action of gear transmission until the base plate 502 is completely slid into the through hole 401. The lower end of the protective cover 501 is attached to the upper end of the support plate 4, thus completing the replacement of the ideological and political propaganda documents on the content plate 504. (And the weight of the protective cover 501 is greater than that of the base plate 502, the content plate 504 and the toothed plate 505. Therefore, in the case of an unlimited structure, the lower end of the protective cover 501 is always attached to the upper end of the support plate 4).

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A bulletin board, comprising: The propaganda rack (1) is characterized in that: a rain shelter (2) is fixedly connected to the upper end of the propaganda rack (1), and a sliding groove (3) is provided on both sides of the inner wall of the propaganda rack (1). A bearing plate (4) is fixedly connected between the bottom of the two sets of sliding grooves (3), and a propaganda component (5) that facilitates the replacement of the ideological and political board is provided at the upper end of the bearing plate (4) and between the two sliding grooves (3). The advertising component (5) includes a protective cover (501), a base plate (502), and a rotating rod (506). The protective cover (501) is located on the upper end of the support plate (4). The inner walls of the protective cover (501) are fixedly connected to two toothed plates (503). The upper end of the base plate (502) is fixedly connected to a content plate (504). The upper end of the base plate (502) and both sides of the content plate (504) are fixedly connected to two toothed plates (505). The outer wall of the rotating rod (506) is fixedly connected to a gear (507).

2. A bulletin board as described in claim 1, characterized in that: The left and right sides of the protective cover (501) are slidably connected to the inner wall of the slide groove (3). The front and rear sides of the protective cover (501) are provided with grooves (5011). The two ends of the rotating rod (506) pass through the grooves (5011) and are rotatably connected to the inner wall of the slide groove (3). A clearance groove for the clearance gear (507) is formed between the protective cover (501) and the toothed plate (505).

3. A bulletin board as described in claim 1, characterized in that: The lower end of the bearing plate (4) is provided with a through hole (401), the bottom plate (502) passes through the through hole (401), and a handle (5021) is fixedly connected to the lower end of the bottom plate (502).

4. A bulletin board as described in claim 1, characterized in that: Sealing gaskets are installed on the bottom of the protective cover (501) and the surface of the support plate (4), and sealing gaskets are installed on the outer wall of the base plate (502) and the inner wall of the through hole (401).

5. A bulletin board as described in claim 1, characterized in that: The height of the second toothed plate (505) is higher than that of the inner plate (504). The front and rear sides of the second toothed plate (505) are slidably connected to the inner wall of the protective cover (501) through sliders. The inner wall of the protective cover (501) is provided with a moving groove that matches the slider.

6. A bulletin board as described in claim 1, characterized in that: The lower end of the advertising rack (1) is fixedly connected to two bases (101), and the inner wall of the advertising rack (1) and the lower end of the bearing plate (4) are fixedly connected to a limiting frame (102). The upper end of the limiting frame (102) is rotatably connected to a hook (103) via a rotating shaft.

7. A bulletin board as described in claim 1, characterized in that: The gear (507) is located between tooth plate one (503) and tooth plate two (505), and the gear (507) meshes with tooth plate one (503) and tooth plate two (505).

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