Foldable publicity board

Abstract

The utility model belongs to the technical field of publicity boards, and particularly relates to a foldable publicity board which comprises a long board and a board body, first short boards are arranged above the left end and the right end of the long board respectively, second short boards are arranged above the two first short boards respectively, a guide rod is fixedly arranged on the outer wall of the middle of the rear portion of each second short board, and the guide rods are connected with the long board and the board body respectively. Supporting frames are fixedly arranged on the outer walls of the rear ends of the left end and the right end of the long plate, the top ends of the supporting frames are slidably arranged on the outer sides of the guide rods in a sleeving mode, fixing pieces are fixed to the sides, away from each other, of the two supporting frames, distance adjusting assemblies are arranged behind the two first short plates, and a second sliding groove is formed in the top end of the long plate. And second sliding rods are arranged on the outer sides, opposite to threads, of the left end and the right end of the two-way lead screw in a threaded and sleeving mode correspondingly. In the transportation and installation process, the first short plate and the second short plate can be shrunk, the device is folded, and the effect of being easy to transport and install is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of publicity boards, and in particular relates to a foldable publicity board. Background Art

[0002] A promotional board is a sheet-like medium used to publish and display information. Common materials include KT board, chevron board, aluminum sheet, high-density fiberboard, and acrylic. The primary function of a promotional board is to convey information through visual presentation, and it is widely used in various situations.

[0003] However, after searching and researching, it was found that existing promotional boards on the market lack the folding function. This leads to inconvenience in transportation before installation and during installation. In addition, multiple information contents are stacked and displayed in the same area, without the partitioning function, making it difficult to meet different display needs and usage environments. Therefore, there is an urgent need to improve existing promotional boards and provide a foldable promotional board. Utility Model Content

[0004] The purpose of the present invention is to provide a foldable publicity board with reasonable design, simple structure, partition display function and solve the problems existing in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A foldable propaganda board comprises a long board and a board body, wherein a first short board is provided above the left and right ends of the long board, a second short board is provided above the two first short boards, a guide rod is fixed to the rear middle outer wall of the second short board, a support frame is fixed to the outer wall of the rear end of the left and right ends of the long board, the top end of the support frame is slidably sleeved on the outside of the guide rod, a fixing plate is fixed on the opposite sides of the two support frames, a distance adjustment component is provided at the rear of the two first short boards, a second slide groove is opened inside the top end of the long board, a bidirectional screw rod is installed on the inner bearing of the second slide groove, and a second slide rod is threadedly sleeved on the outer side of the opposite threads at the left and right ends of the bidirectional screw rod.

[0007] As a preferred embodiment, the first short plate includes a plate body, a first slide groove, a limit rod and a first sliding rod. A first slide groove is opened inside the upper end of the plate body, the inner side of the first slide groove is fixedly connected to the limit rod, the inner side of the first slide groove is engaged and slidably provided with a first sliding rod, and the first sliding rod is slidably sleeved on the outer side of the limit rod.

[0008] As a preferred embodiment, the bottom end of the plate body slides in contact with the long plate, the top end of the plate body slides in contact with the second short plate, and the plate body is fixedly connected to the second sliding rod.

[0009] As a preferred embodiment, the first sliding rod is fixedly connected to the middle position of the bottom end of the second short plate, the plate body and the second short plate are linked through a distance adjustment component, and the horizontal sliding distance of the plate body is half of the horizontal sliding distance of the second short plate.

[0010] As a preferred embodiment, the pitch adjustment assembly includes a driving gear, a first rack and a second rack. The driving gear bearing is installed in the middle position of the rear end outer wall of the plate body. The first rack is meshed and connected below the driving gear, and the second rack is meshed and connected above the driving gear. The length of the second rack is equal to that of the first rack.

[0011] As a preferred embodiment, the first rack is fixedly connected to the top rear outer wall of the long board, and the second rack is fixedly connected to the bottom rear outer wall of the second short board.

[0012] As a preferred embodiment, the bidirectional lead screw is a trapezoidal lead screw.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In the solution of the present utility model:

[0015] The two second sliding rods can be controlled by the bidirectional screw rod to respectively drive the two first short plates and the second short plates to move synchronously in the directions away from each other. At this time, the first rack behind the long plate can be used to make the driving gear behind the first short plate rotate while following the movement, thereby pushing the second rack and driving the second short plate to move relative to the first short plate, so that the long plate, the first short plate and the second short plate can be arranged in a stepped manner, which is convenient for the classified and partitioned display of different information. Moreover, during the transportation and installation process of the device, the first short plate and the second short plate can be retracted to complete the folding of the device, which plays a role in easy transportation and installation.

[0016] The setting of the support frame and the fixing plate facilitates the wall-mounted installation of the device, and the guide rod slidably connected to the support frame can improve the smoothness of the second short board during the sliding adjustment process, which also plays a certain role in enhancing the stability of the entire propaganda board in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art description. The following description is given with respect to the drawings:

[0018] Figure 1 This is a schematic diagram of the three-dimensional front view structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional rear view structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall front cross-sectional structure of the first short plate of the utility model;

[0021] Figure 4 This is a rear view structural diagram of the utility model in the unfolded state.

[0022] In the picture:

[0023] 1. Long board; 2. First short board; 21. Board body; 22. First slide groove; 23. Limit rod; 24. First slide rod; 3. Second short board; 4. Guide rod; 5. Support frame; 6. Fixed plate; 7. Pitch adjustment assembly; 71. Drive gear; 72. First rack; 73. Second rack; 8. Second slide groove; 9. Bidirectional screw rod; 10. Second slide rod. DETAILED DESCRIPTION

[0024] The embodiments described below are only a portion of the embodiments of the present invention and do not represent all embodiments consistent with the present invention. The exemplary embodiments are described below in conjunction with the accompanying drawings:

[0025] like Figure 1-4 As shown, the foldable propaganda board of the present invention includes a long board 1 and a board body 21. A first short board 2 is provided above the left and right ends of the long board 1, and a second short board 3 is provided above the two first short boards 2. A guide rod 4 is fixed to the middle outer wall of the rear end of the second short board 3, and a support frame 5 is fixed to the outer wall of the left and right rear ends of the long board 1. The top end of the support frame 5 is slidably sleeved on the outside of the guide rod 4, and a fixing plate 6 is fixed on the opposite side of the two support frames 5. A distance adjustment component 7 is provided at the rear of the two first short boards 2. A second slide groove 8 is opened inside the top of the long board 1, and a bidirectional screw rod 9 is installed on the inner bearing of the second slide groove 8. A second slide rod 10 is threadedly sleeved on the outer side of the opposite threads at the left and right ends of the bidirectional screw rod 9.

[0026] On the basis of the above structure, the first short plate 2 includes a plate body 21, a first slide groove 22, a limiting rod 23 and a first sliding rod 24. A first slide groove 22 is opened inside the upper end of the plate body 21, and the inner side of the first slide groove 22 is fixedly connected to the limiting rod 23. The inner side of the first slide groove 22 is engaged and slidably provided with a first sliding rod 24, and the first sliding rod 24 is slidably sleeved on the outer side of the limiting rod 23.

[0027] On the basis of the above structure, the bottom end of the plate body 21 slides in contact with the long plate 1 , the top end of the plate body 21 slides in contact with the second short plate 3 , and the plate body 21 is fixedly connected to the second sliding rod 10 .

[0028] In this embodiment, the second sliding rod 10 and the bidirectional screw rod 9 facilitate the stable sliding adjustment of the left and right first short plates 2 .

[0029] Based on the above structure, the first sliding rod 24 is fixedly connected to the middle position of the bottom end of the second short plate 3, and the plate body 21 and the second short plate 3 are linked through the distance adjustment component 7. The horizontal sliding distance of the plate body 21 is half of the horizontal sliding distance of the second short plate 3.

[0030] In this embodiment, the arrangement of the limiting rod 23 and the first sliding rod 24 can improve the stability of the second short plate 3 during the sliding adjustment process.

[0031] Based on the above structure, the distance adjustment component 7 includes a driving gear 71, a first rack 72 and a second rack 73. The driving gear 71 bearing is installed in the middle position of the rear end outer wall of the plate body 21. The first rack 72 is meshed and connected to the bottom of the driving gear 71, and the second rack 73 is meshed and connected to the top of the driving gear 71. The length of the second rack 73 is equal to that of the first rack 72.

[0032] On the basis of the above structure, the first rack 72 is fixedly connected to the top rear outer wall of the long board 1 , and the second rack 73 is fixedly connected to the bottom rear outer wall of the second short board 3 .

[0033] In this embodiment, when the plate body 21 drives the driving gear 71 to move, the first rack 72 behind the long board 1 can be used to rotate the driving gear 71, thereby pushing the second rack 73 and driving the second short board 3 to move relative to the first short board 2, so that the long board 1, the first short board 2 and the second short board 3 can be distributed in a stepped manner, which is convenient for the classified and partitioned display of different information.

[0034] On the basis of the above structure, the bidirectional screw rod 9 is a trapezoidal screw rod.

[0035] In this embodiment, the self-locking capability of the trapezoidal lead screw is utilized to ensure the stability of the device in the unfolded and folded states.

[0036] The working principle of this utility model is as follows:

[0037] When using, first Figure 1 and Figure 2 The propaganda board device shown in the figure is wall-mounted using a support frame 5 and a fixing piece 6 of the side wall. After the propaganda board is fixedly installed in the specified position, the bidirectional screw rod 9 can be manually rotated to control the left and right second sliding rods 10 to move along the second sliding groove 8 and respectively drive the two first short boards 2 and the second short boards 3 to move synchronously in the direction away from each other. At this time, the first rack 72 behind the long board 1 can be used to make the driving gear 71 behind the first short board 2 rotate while following the movement, thereby pushing the second rack 73 and the second short board 3 to move relative to the first short board 2, so that the long board 1, the first short board 2 and the second short board 3 can be distributed in a stepped manner as shown in FIG. Figure 3 and Figure 4In the state shown in the figure, the promotional board is fully unfolded and divided into several information display areas, which is convenient for the classification and partitioning display of different information. The information content is clear at a glance, avoiding information piling up together, making it easier to read and achieving a better display and promotion effect.

[0038] During the transportation and installation of the publicity board device, the first short board 2 and the second short board 3 can be shrunk into the shape of Figure 1 As shown in the figure, the device is folded to facilitate transportation and installation. The first slide groove 22, the limit rod 23 and the first slide rod 24 are arranged to facilitate the stability of the second short board 3 during the sliding adjustment process. The guide rod 4 slidably connected to the support frame 5 can improve the smoothness of the second short board 3 during the sliding adjustment process, and it also has a certain effect on enhancing the stability of the entire propaganda board in use.

[0039] The above are only preferred specific embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any equivalent changes, modifications, substitutions and variations made by technicians in this technical field based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of existing technologies should be within the scope of protection determined by the claims.

Claims

1. A foldable publicity board, comprising a long board (1) and a board body (21), characterized in that: A first short plate (2) is provided above the left and right ends of the long plate (1), a second short plate (3) is provided above the two first short plates (2), a guide rod (4) is fixed to the rear middle outer wall of the second short plate (3), a support frame (5) is fixed to the rear end outer wall of the left and right ends of the long plate (1), the top end of the support frame (5) is slidably sleeved on the outer side of the guide rod (4), a fixing plate (6) is fixed to the opposite side of the two support frames (5), and a distance adjustment component (7) is provided at the rear of the two first short plates (2), the distance adjustment component (7) includes a driving gear (71), a first rack (72) and a second rack (73), and the driving gear (71) is mounted on a bearing. At the middle position of the rear end outer wall of the plate body (21), the first rack (72) is meshedly connected to the bottom of the driving gear (71), and the second rack (73) is meshedly connected to the top of the driving gear (71). The length of the second rack (73) is equal to that of the first rack (72). The first rack (72) is fixedly connected to the top rear outer wall of the long plate (1), and the second rack (73) is fixedly connected to the bottom rear outer wall of the second short plate (3). A second slide groove (8) is opened inside the top of the long plate (1), and a bidirectional screw rod (9) is installed on the inner bearing of the second slide groove (8). The outer sides of the left and right ends of the bidirectional screw rod (9) are both threadedly sleeved with a second slide rod (10).

2. A foldable publicity board according to claim 1, characterized in that: The first short plate (2) includes a plate body (21), a first sliding groove (22), a limiting rod (23) and a first slide rod (24). The first sliding groove (22) is provided inside the upper end of the plate body (21). The inner side of the first sliding groove (22) is fixedly connected to the limiting rod (23). The inner side of the first sliding groove (22) is engaged and slidably provided with a first slide rod (24). The first slide rod (24) is slidably sleeved on the outer side of the limiting rod (23).

3. The foldable publicity board according to claim 2, characterized in that: The bottom end of the plate body (21) slides in contact with the long plate (1), the top end of the plate body (21) slides in contact with the second short plate (3), and the plate body (21) is fixedly connected to the second slide rod (10).

4. The foldable publicity board according to claim 3, characterized in that: The first sliding rod (24) is fixedly connected to the middle position of the bottom end of the second short plate (3); the plate body (21) and the second short plate (3) are linked via a distance adjustment component (7); and the horizontal sliding distance of the plate body (21) is half of the horizontal sliding distance of the second short plate (3).

5. The foldable publicity board according to claim 1, characterized in that: The bidirectional screw rod (9) is a trapezoidal screw rod.

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