Extensible bulletin board

Abstract

The extensible bulletin board comprises a movable base, supporting columns are fixedly connected to the four corners of the lower end face of the movable base, universal wheels are fixedly connected to the lower end faces of the supporting columns, adsorption mechanisms are arranged on the two sides of the movable base, and a supporting plate is fixedly connected to the upper end face of the movable base. A rotating column penetrating through the supporting plate and rotationally connected with the penetrating part through a bearing is arranged in the middle of the supporting plate, a publicity board body is fixedly connected to the upper end of the rotating column, a storage through groove is formed in the publicity board body, two expansion boards are slidably connected into the storage through groove, and magnetic attraction boards are arranged on the front end faces of the expansion boards and the publicity board body; first limiting sliding grooves are formed in the upper face and the lower face of the interior of the storage through groove correspondingly, and two first limiting sliding blocks fixedly connected with the corresponding expansion plates are slidably connected into the first limiting sliding grooves. According to the extensible bulletin board, follow-up workers can conveniently rotate and adjust the orientation of a propaganda surface, and the extensible bulletin board is practical.

Description

Technical Field

[0001] The utility model relates to the technical field of public health management, in particular to an expandable bulletin board. Background Technique

[0002] In order to better publicize and educate health culture and announce general matters, etc., a bulletin board device is generally set up, through which people can learn and publicize in a timely manner.

[0003] In the patent document with the published publication number of CN215495917U, a publicity device for public health management is disclosed, including a publicity board. Installation grooves are arranged on the outer walls on both sides of the publicity board, extension plates are slidably arranged on the inner walls of the installation grooves, and symmetrically distributed strip grooves are arranged on one outer wall of the publicity board.

[0004] However, the above-mentioned prior art still has deficiencies in use. When the publicity device in the above-mentioned prior art is used at a suitable position, the sucker is adsorbed on the ground to limit the whole device to the ground and increase the stability of the whole device. However, if the staff needs to rotate and adjust the display surface of the publicity board of the publicity device later, it is necessary to first release the adsorption connection between the sucker and the ground, and then rotate the whole publicity device through the pulley to complete the rotation and adjustment of the display surface of the publicity board of the publicity device. After adjustment, it is necessary to adsorb the sucker on the ground again to ensure the stability of the whole device, which is rather troublesome, time-consuming and laborious. For this reason, we have proposed an expandable bulletin board. Content of the Utility Model

[0005] The utility model provides an expandable bulletin board, which solves the technical problems raised in the background technique of the prior art.

[0006] The utility model solves the above technical problems as follows: It includes a moving base. Universal wheels are fixedly connected to the lower ends of the support columns fixedly connected to the four corners of the lower end surface of the moving base. Adsorption mechanisms are arranged on both sides of the moving base. A support plate is fixedly connected to the upper end surface of the moving base. A rotating column passing through the support plate and rotatably connected to the passing part through a bearing is arranged in the middle of the support plate. A publicity board main body is fixedly connected to the upper end of the rotating column. A storage through groove is opened inside the publicity board main body. Two expansion plates are slidably connected inside the storage through groove. Magnetic attraction plates are arranged on the front end surfaces of the expansion plates and the publicity board main body. Limiting sliding grooves one are opened on the upper and lower surfaces inside the storage through groove. Two limiting sliders one fixedly connected to the corresponding expansion plates are slidably connected inside the limiting sliding grooves one. A plurality of positioning holes evenly distributed in a circle are opened on the surface of the rotating column. A positioning mechanism is arranged on one side of the rotating column.

[0007] On the basis of the above technical solution, the present utility model can also be improved as follows.

[0008] Furthermore, handles are fixedly connected to one side of both extension boards, the universal wheels have a braking function, and the adsorption mechanism includes a fixing plate fixedly connected to the moving base.

[0009] Furthermore, a suction cup is arranged at the lower end of the fixing plate, a threaded rod that penetrates the fixing plate and is threadedly connected to the penetrated part is fixedly connected to the upper end face of the suction cup, and a rotating handle is fixedly connected to the upper end of the threaded rod.

[0010] Furthermore, the positioning mechanism includes a U-shaped plate fixedly connected to the support plate through a mounting rod. A moving slider is slidably connected inside the U-shaped plate, and a positioning rod that is slidably connected inside the positioning hole is fixedly connected to one side of the moving slider.

[0011] Furthermore, a pull rod that penetrates the U-shaped plate and is slidably connected to the penetrated part is fixedly connected to the other side of the moving slider, and a pull ring is fixedly connected to one end of the pull rod.

[0012] Furthermore, a spring whose two ends are respectively fixedly connected to the inner surface of the U-shaped plate and the other side of the moving slider is sleeved on the surface of the pull rod. Limiting sliding grooves two are opened on both the upper and lower inner surfaces of the U-shaped plate, and limiting sliders two that are fixedly connected to the moving slider are slidably connected inside the limiting sliding grooves two.

[0013] The beneficial effects of the present utility model are as follows: The present utility model provides an expandable publicity column, which has the following advantages:

[0014] Through the cooperation among the provided support plate, rotating column, positioning hole and positioning mechanism, it is convenient for subsequent staff to perform rotational adjustment processing on the orientation of the publicity surface, without the need to rotate the entire device, thus improving the practicability.

[0015] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly and implement it in accordance with the content of the specification, the following takes the preferred embodiments of the present utility model and combines with the drawings to describe in detail as follows. The specific implementation manners of the present utility model are given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present utility model and form a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0017] Figure 1 is a schematic structural diagram of an expandable publicity column provided by an embodiment of the present utility model;

[0018] Figure 2 For Figure 1 the structural top view sectional schematic diagram of the main body of the publicity board in an expandable publicity column;

[0019] Figure 3 For Figure 1 the structural front view sectional schematic diagram of the main body of the publicity board in an expandable publicity column;

[0020] Figure 4 For Figure 1 the structural bottom view schematic diagram of the mobile base in an expandable publicity column;

[0021] Figure 5 For Figure 1 the structural front view sectional schematic diagram of a partial structure in an expandable publicity column;

[0022] Figure 6 For Figure 1 the structural top view sectional schematic diagram of the rotating column in an expandable publicity column.

[0023] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0024] 1. Expansion board; 2. Main body of the publicity board; 3. Magnetic attraction board; 4. Rotating column; 5. Positioning hole; 6. U-shaped plate; 7. Pull ring; 8. Support plate; 9. Mobile base; 10. Rotating handle; 11. Threaded rod; 12. Fixed plate; 13. Suction cup; 14. Support column; 15. Universal wheel; 16. Storage through groove; 17. First limiting sliding groove; 18. First limiting sliding block; 19. Pull rod; 20. Second limiting sliding groove; 21. Second limiting sliding block; 22. Spring; 23. Moving sliding block; 24. Positioning rod. Detailed implementation manners

[0025] The following describes the principles and features of the present utility model in conjunction with the attached Figures 1-6 drawings. The examples given are only used to explain the present utility model and are not intended to limit the scope of the present utility model. In the following paragraphs, the present utility model will be described more specifically by way of example with reference to the attached drawings. According to the following description and the claims, the advantages and features of the present utility model will be clearer. It should be noted that the attached drawings are all in a very simplified form and use non-precise scales, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present utility model.

[0026] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the specification of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0028] As Figures 1-6 shown, the present utility model provides an expandable bulletin board, which includes a moving base 9. Four corners of the lower end surface of the moving base 9 are fixedly connected with support columns 14. The lower end surface of the support column 14 is fixedly connected with universal wheels 15. Adsorption mechanisms are arranged on both sides of the moving base 9. A support plate 8 is fixedly connected to the upper end surface of the moving base 9. A rotating column 4 is arranged in the middle of the support plate 8 and is rotatably connected to the penetrated part through a bearing. A bulletin board main body 2 is fixedly connected to the upper end of the rotating column 4. A storage through groove 16 is opened in the bulletin board main body 2. Two expansion plates 1 are slidably connected in the storage through groove 16. Magnetic attraction plates 3 are arranged on the front end surfaces of the expansion plates 1 and the bulletin board main body 2. First limiting sliding grooves 17 are opened on the upper and lower surfaces of the storage through groove 16. Two limiting sliders 18 fixedly connected to the corresponding expansion plates 1 are slidably connected in the first limiting sliding grooves 17. A plurality of positioning holes 5 are arranged on the surface of the rotating column 4 in a circumferentially uniform distribution. A positioning mechanism is arranged on one side of the rotating column 4.

[0029] Preferably, handles are fixedly connected to one side surface of each of the two expansion plates 1. The universal wheels 15 have a braking function. The adsorption mechanism includes a fixing plate 12 fixedly connected to the moving base 9.

[0030] Preferably, a suction cup 13 is arranged at the lower end of the fixing plate 12. A threaded rod 11 is fixedly connected to the upper end surface of the suction cup 13 and is threadedly connected to the penetrated part through the fixing plate 12. A rotating handle 10 is fixedly connected to the upper end of the threaded rod 11. The arrangement of the rotating handle 10 facilitates the rotation treatment of the threaded rod 11.

[0031] Preferably, the positioning mechanism includes a U-shaped plate 6 fixedly connected to the support plate 8 through a mounting rod. A moving slider 23 is slidably connected inside the U-shaped plate 6. One side of the moving slider 23 is fixedly connected to a positioning rod 24 that is slidably connected inside the positioning hole 5. The positioning rod 24 can cooperate with the positioning hole 5 to limit the rotation column 4.

[0032] Preferably, the other side of the moving slider 23 is fixedly connected to a pull rod 19 that penetrates the U-shaped plate 6 and is slidably connected to the penetrated part. One end of the pull rod 19 is fixedly connected to a pull ring 7. The pull ring 7 is provided to facilitate pulling the pull rod 19.

[0033] Preferably, a spring 22 is sleeved on the surface of the pull rod 19, and the two ends of the spring 22 are respectively fixedly connected to the inner surface of the U-shaped plate 6 and the other side of the moving slider 23. Limiting sliding grooves two 20 are opened on the upper and lower surfaces inside the U-shaped plate 6. A limiting slider two 21 slidably connected to the limiting sliding grooves two 20 and fixedly connected to the moving slider 23 is slidably connected inside the limiting sliding grooves two 20. The cooperation between the limiting slider two 21 and the limiting sliding grooves two 20 can enable the moving slider 23 to be limited and slide inside the U-shaped plate 6.

[0034] The specific working principle and usage method of the present utility model are as follows:

[0035] The present utility model provides an expandable publicity column. When in use, move the entire device to a suitable position, lock the universal wheels 15, and then rotate the rotating handle 10 to rotate the threaded rod 11, so that the threaded rod 11 drives the suction cup 13 to move towards the ground, and the suction cup 13 is adsorbed and connected to the ground, thereby increasing the stability of the entire device during use. Then, the publicity materials can be adsorbed on the magnetic attraction plate 3 through the magnetic attraction blocks. If there are more publicity materials, the expansion plate 1 can be pulled through the handle to make the expansion plate 1 slide out from the storage through groove 16 for use, thereby increasing the usage area of the publicity board main body 2. When the orientation of the publicity surface needs to be rotated and adjusted subsequently, the staff only needs to pull the pull ring 7 with one hand to drive the pull rod 19 to drive the moving slider 23 to slide inside the U-shaped plate 6. When the moving slider 23 slides, it will drive the positioning rod 24 to move, so that the positioning rod 24 is separated from the positioning hole 5, thereby releasing the limit on the rotation column 4. At this time, the spring 22 is in a compressed state. Then, the other hand of the staff can directly rotate the publicity board main body 2 to drive the rotation column 4 to rotate, thereby rotating and adjusting the orientation of the publicity surface. After the adjustment is completed, by releasing the pull ring 7, the compressed spring 22 elongates, so that the moving slider 23 drives the positioning rod 24 to slide in the reverse direction, and the positioning rod 24 slides into the positioning hole 5, thereby limiting the rotation column 4, and thus limiting the publicity board main body 2 after the rotation adjustment. The adjustment is relatively convenient.

[0036] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model; any ordinary technician in the industry can smoothly implement the present utility model according to what is shown in the accompanying drawings of the specification and the above; however, any minor changes, modifications, and equivalent variations made by those skilled in the art within the scope of the technical solution of the present utility model by using the technical content disclosed above are all equivalent embodiments of the present utility model; at the same time, any equivalent changes, modifications, and evolutions made to the above embodiments based on the essential technology of the present utility model still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An expandable publicity board, comprising a mobile base (9), characterized in that: The four corners of the lower end surface of the mobile base (9) are fixedly connected to support columns (14), and the lower end surface of the support column (14) is fixedly connected to a universal wheel (15). Both sides of the mobile base (9) are provided with an adsorption mechanism. The upper end surface of the mobile base (9) is fixedly connected to a support plate (8). A rotating column (4) is provided in the middle of the support plate (8) and penetrates the support plate (8) and is rotatably connected to the penetrated portion via a bearing. The upper end of the rotating column (4) is fixedly connected to a propaganda board body (2), and a storage slot (15) is provided inside the propaganda board body (2). 16), two expansion plates (1) are slidably connected inside the receiving slot (16), and magnetic plates (3) are provided on the front ends of the expansion plates (1) and the main body (2) of the publicity board. A limiting slide groove (17) is provided on the upper and lower surfaces inside the receiving slot (16), and two limiting sliders (18) are slidably connected inside the limiting slide groove (17) and are fixedly connected to the corresponding expansion plates (1). A plurality of positioning holes (5) evenly distributed in a circumference are provided on the surface of the rotating column (4), and a positioning mechanism is provided on one side of the rotating column (4).

2. The expandable billboard according to claim 1, characterized in that: The two expansion plates (1) are both fixedly connected to a handle on one side thereof, the universal wheel (15) has a braking function, and the adsorption mechanism comprises a fixed plate (12) fixedly connected to the mobile base (9).

3. The expandable billboard according to claim 2, characterized in that: A suction cup (13) is provided at the lower end of the fixing plate (12); a threaded rod (11) penetrating the fixing plate (12) and threadedly connected to the penetrating portion is fixedly connected to the upper end surface of the suction cup (13); and a rotating handle (10) is fixedly connected to the upper end of the threaded rod (11).

4. The expandable billboard according to claim 1, characterized in that: The positioning mechanism comprises a U-shaped plate (6) fixedly connected to a support plate (8) via a mounting rod, a movable slider (23) slidably connected inside the U-shaped plate (6), and a positioning rod (24) slidably connected to the inside of the positioning hole (5) is fixedly connected to one side of the movable slider (23).

5. The expandable publicity board according to claim 4, characterized in that: The other side of the movable slider (23) is fixedly connected to a pull rod (19) that penetrates the U-shaped plate (6) and is slidably connected to the penetration portion, and one end of the pull rod (19) is fixedly connected to a pull ring (7).

6. The expandable billboard according to claim 5, characterized in that: The surface of the pull rod (19) is sleeved with a spring (22) whose two ends are respectively fixedly connected to the inner surface of the U-shaped plate (6) and the other side of the movable slider (23); the upper and lower surfaces inside the U-shaped plate (6) are provided with two limit slide grooves (20); the inside of the two limit slide grooves (20) is slidably connected with two limit slide blocks (21) fixedly connected to the movable slider (23).

Images