Bulletin board facilitating content replacement

Abstract

The utility model discloses a bulletin board convenient to change content, relates to bulletin board technical field, including support and bulletin board body, the bulletin board body is welded between the two support, the interior of the bulletin board body is symmetrically provided with sliding chute, the interior of the sliding chute is slidingly connected with the support rod, the support rod is connected with the bulletin board body, and the support rod is connected with the bulletin board body. A plurality of through holes are formed in the outer portion of the supporting rod at equal intervals, a clamping block is arranged on the outer portion of the supporting rod in a sleeving mode, bolts extending into the through holes are arranged in the clamping block in a penetrating mode, a cavity is formed in the clamping block, and a pull rod is slidably connected into the cavity. By arranging the sliding groove, the supporting rod, the through hole, the clamping block, the bolt, the cavity, the pull rod and the extension spring, when the pull rod is pulled, a propaganda poster can be placed in the clamping block, when the pull rod is loosened, the pull rod clamps the poster through the tensile force of the extension spring, and when replacement is needed, the pull rod can be pulled again, so that the poster is not clamped, and replacement is convenient. Therefore, the purpose of conveniently replacing the poster is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of propaganda columns, in particular to a propaganda column which is convenient for changing content. Background Art

[0002] The billboard is a kind of publicity carrier. The content that needs to be publicized is placed in the billboard for publicity. This can effectively protect the content being publicized, and the publicity content in the billboard can be replaced, thereby improving the utilization rate of the billboard.

[0003] At present, when pasting content on existing billboards, posters are generally pasted on the billboards by gluing or using tape or double-sided tape, resulting in that when the content is changed later, the posters can only be torn off, and there is colloid residue on the surface of the billboard, which needs to be cleaned and scraped off, and the steps are cumbersome and inconvenient to use. Utility Model Content

[0004] Based on this, the purpose of the present invention is to provide a publicity column that is easy to change the content, so as to solve the technical problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a propaganda column that is easy to change the content, comprising a bracket and a propaganda column body, the propaganda column body is welded and connected between the two brackets, the interior of the propaganda column body is symmetrically provided with sliding grooves, the interior of the sliding grooves is slidably connected with a support rod, the exterior of the support rod is equidistantly provided with a plurality of through holes, the exterior of the support rod is sleeved with a clamping block, the interior of the clamping block is penetrated with bolts extending to the interior of the through holes, the interior of the clamping block is provided with a cavity, the interior of the cavity is slidably connected with a pull rod, and a tension spring is welded and connected between the pull rod and the cavity.

[0006] Preferably, the support rod and the publicity column body form a sliding structure through a sliding groove, and the clamping block and the support rod form a clamping structure through a bolt and a through hole.

[0007] Preferably, a bottom plate is welded to the bottom of the bracket, and thread grooves are symmetrically provided inside the bottom plate.

[0008] Preferably, the internal threads of the threaded groove are connected with a threaded rod, and a support plate is provided at the bottom of the base plate.

[0009] Preferably, the support plate is connected to one end of the threaded rod via a bearing, and a limiting hole is provided on a side of the bottom plate away from the thread groove.

[0010] Preferably, a limiting rod welded to the support plate passes through the limiting hole, and universal wheels are symmetrically mounted on the bottom of the base plate.

[0011] In summary, the utility model mainly has the following beneficial effects:

[0012] 1. Existing propaganda columns are glued or pasted with adhesive tape, which results in colloid residue on the surface of the propaganda column when the content is changed later, which is not easy to clean. The utility model provides a slide groove, a support rod, a through hole, a clamping block, a bolt, a cavity, a pull rod and a tension spring. When the pull rod is pulled, the propaganda poster can be placed inside the clamping block. When the pull rod is loosened, the tension force of the tension spring causes the pull rod to clamp the poster. When it needs to be replaced, the pull rod can be pulled again to make the poster lose its clamping, thereby achieving the purpose of facilitating the replacement of the poster.

[0013] 2. Most of the existing propaganda columns are fixedly connected to the ground by tools. When the propaganda columns are exposed to wind and rain outdoors for a long time, they are prone to corrosion and fracture. The utility model provides a bottom plate, threaded grooves, threaded rods, support plates, limit holes, limit rods and universal wheels. When the threaded rods are rotated, the support plates move in the vertical direction and come into contact with the ground to prevent the propaganda column body from moving. When the propaganda column body needs to be moved, the threaded rods can be twisted to move the support plates upward, so that the universal wheels support the propaganda column body, thereby achieving the purpose of facilitating the movement of the propaganda column body and facilitating the movement of the propaganda column body indoors in rainy and snowy weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the front view cutaway structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the top view of the cross-section structure of the clamping block of the utility model;

[0017] Figure 4 It is a schematic diagram of the side cutaway structure of the bracket of the utility model.

[0018] In the figure: 1. bracket; 2. publicity board body; 3. slide groove; 4. support rod; 5. through hole; 6. clamping block; 7. bolt; 8. cavity; 9. pull rod; 10. tension spring; 11. bottom plate; 12. threaded groove; 13. threaded rod; 14. support plate; 15. limit hole; 16. limit rod; 17. universal wheel. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0020] The following describes an embodiment of the utility model based on its overall structure.

[0021] A bulletin board that is easy to change content, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a bracket 1 and a propaganda column body 2, the propaganda column body 2 is welded and connected between the two brackets 1, a plurality of through holes 5 are equidistantly provided on the outside of the support rod 4, a clamping block 6 is sleeved on the outside of the support rod 4, a bolt 7 extending to the inside of the through hole 5 is penetrated inside the clamping block 6, a cavity 8 is provided inside the clamping block 6, a pull rod 9 is slidably connected inside the cavity 8, a tension spring 10 is welded and connected between the pull rod 9 and the cavity 8, the clamping block 6 and the support rod 4 form a clamping structure through the bolt 7 and the through hole 5, when the pull rod 9 is pulled, the propaganda poster can be placed inside the clamping block 6, the pull rod 9 is loosened, and the tension force of the tension spring 10 makes the pull rod 9 clamp the poster, when replacement is needed, the pull rod 9 can be pulled again to make the poster lose its clamping, thereby achieving the purpose of facilitating the replacement of the poster.

[0022] See also Figure 1 and Figure 2 It can be seen that the inside of the billboard body 2 is symmetrically provided with a slide groove 3, and the inside of the slide groove 3 is slidably connected with a support rod 4. The support rod 4 and the billboard body 2 form a sliding structure through the slide groove 3. The support rod 4 can slide inside the slide groove 3, thereby achieving the purpose of facilitating the clamping of billboard posters of different sizes.

[0023] See also Figure 1 , Figure 2 and Figure 4 It can be seen that a base plate 11 is welded to the bottom of the bracket 1, and a threaded groove 12 is symmetrically provided inside the base plate 11. A threaded rod 13 is threadedly connected to the inner thread of the threaded groove 12. A support plate 14 is provided at the bottom of the base plate 11, and the support plate 14 is connected to one end of the threaded rod 13 through a bearing. A limiting hole 15 is provided on the side of the base plate 11 away from the threaded groove 12, and a limiting rod 16 welded to the support plate 14 passes through the limiting hole 15. Universal wheels 17 are symmetrically installed at the bottom of the base plate 11. When the threaded rod 13 is rotated, the support plate 14 moves in the vertical direction and contacts the ground to prevent the propaganda column body 2 from moving. When the propaganda column body 2 needs to move, the threaded rod 13 can be screwed to make the support plate 14 move upward, so that the universal wheel 17 supports the propaganda column body 2, thereby achieving the purpose of facilitating the movement of the propaganda column body 2.

[0024] The working principle of the utility model is as follows: when using the propaganda column which is easy to change the content, when the pull rod 9 is pulled, the propaganda poster can be placed inside the clamping block 6, and the pull rod 9 is loosened. The tensile force of the tension spring 10 makes the pull rod 9 clamp the poster. When it needs to be replaced, the pull rod 9 can be pulled again to make the poster lose its clamping, thereby achieving the purpose of facilitating the replacement of the poster. When the threaded rod 13 is rotated, the support plate 14 moves in the vertical direction and contacts the ground to prevent the propaganda column body 2 from moving. When the propaganda column body 2 needs to be moved, the threaded rod 13 can be twisted to make the support plate 14 move upward, so that the universal wheel 17 supports the propaganda column body 2, thereby achieving the purpose of facilitating the movement of the propaganda column body 2, and playing the role of facilitating the movement of the propaganda column body 2 to indoors in rainy and snowy weather. The contents not described in detail in this description belong to the prior art known to professional and technical personnel in this field.

[0025] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A publicity board that is easy to change content, comprising a bracket (1) and a publicity board body (2), characterized in that: A billboard body (2) is welded and connected between the two brackets (1), a slide groove (3) is symmetrically provided inside the billboard body (2), a support rod (4) is slidably connected inside the slide groove (3), a plurality of through holes (5) are equidistantly provided outside the support rod (4), a clamping block (6) is sleeved on the outside of the support rod (4), a bolt (7) extending to the inside of the through hole is penetrated inside the clamping block (6), a cavity (8) is provided inside the clamping block (6), a pull rod (9) is slidably connected inside the cavity (8), and a tension spring (10) is welded and connected between the pull rod (9) and the cavity (8).

2. A publicity column that is easy to change content according to claim 1, characterized in that: The support rod (4) and the publicity column body (2) form a sliding structure through a sliding groove (3), and the clamping block (6) and the support rod (4) form a clamping structure through a bolt (7) and a through hole (5).

3. The propaganda column that is easy to change content according to claim 1, characterized in that: The bottom of the bracket (1) is welded to a bottom plate (11), and a threaded groove (12) is provided inside the bottom plate (11).

4. A publicity column that is easy to change content according to claim 3, characterized in that: The internal thread of the thread groove (12) is connected to a threaded rod (13), and a support plate (14) is provided at the bottom of the base plate (11).

5. A publicity column that is easy to change content according to claim 4, characterized in that: The support plate (14) is connected to one end of the threaded rod (13) via a bearing, and a limiting hole (15) is provided on a side of the bottom plate (11) away from the threaded groove (12).

6. A publicity column that is easy to change content according to claim 5, characterized in that: A limiting rod (16) welded to the support plate (14) passes through the limiting hole (15), and universal wheels (17) are symmetrically mounted on the bottom of the base plate (11).

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