Bulletin board for municipal facility management

Abstract

The utility model belongs to the technical field of billboards, and particularly relates to a billboard for municipal facility management, which solves the problems in the prior art that the billboard cannot be lifted and is easy to topple over, and comprises a base, first racks are slidably assembled in the two stand columns, the tops of the two first racks are jointly and fixedly connected with a fixing plate through screws, the top of the fixing plate is fixedly connected with a publicity board through screws, rotating shafts are rotatably installed in the two stand columns, and through arrangement of a rocker, a supporting block and other structures, the rocker is rotated, so that the publicity board can be conveniently and rapidly published. A rocker drives a first gear to drive a first rack to move upwards, then a driving wheel enables a driven wheel to drive a worm to rotate through a synchronous belt, a second gear enables a second rack to extend outwards, and therefore when the publicity board ascends, the base can become more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of propaganda boards, in particular to a propaganda board used for municipal facility management. Background Art

[0002] At present, the publicity content usually includes information such as the importance of municipal facilities management, policies and regulations, and safety tips. It needs to be reasonably designed according to the target audience to ensure that the publicity content can be understood and accepted by people. At the same time, the publicity content also needs to be updated according to different occasions and times to meet the management needs of different periods. The publicity boards for municipal facilities management are usually installed in public places, road intersections and other places. It is necessary to choose a suitable installation location and height to ensure that the publicity content can be seen by more people. At the same time, the stability and safety of the publicity boards must also be guaranteed during the installation process to avoid safety hazards to pedestrians and vehicles.

[0003] The authorization announcement number in the prior art is: CN216697767U, and the name is a billboard for municipal facility management services, which includes a protective frame, a base, support rods, rollers, a motor, a cleaning plate and a cover. The lower surface of the protective frame is fixedly installed with support rods near both sides, and the lower surfaces of these support rods are fixedly installed with bases. The lower surface of the base is movably installed with rollers near the four corners, which allows the billboard to be flexibly moved and fixed. A motor is fixedly installed on the upper surface of the protective frame near both sides. The setting of the motor can drive some mechanical parts inside the billboard, such as a reel, and a cleaning plate is movably installed on the front surface of the protective frame. The glass surface can be cleaned by moving the cleaning plate to keep it clean. More importantly, the protective frame is fixedly installed on both sides, and the reel is movably installed inside the reel. This setting allows the publicity curtain to be easily disassembled and assembled, and also simplifies the structure of the billboard. The protective cover and the reel cooperate with the motor to provide a more flexible and convenient way of use for the billboard.

[0004] However, this patent cannot be raised or lowered, so that its scope of use is small, and rollers are provided at the bottom, and the bottom is narrow. After the movement stops, it cannot be well fixed, and a slightly stronger wind may blow it down. Utility Model Content

[0005] The utility model aims to provide a publicity board for municipal facility management, which solves the problem that the publicity board cannot be lifted or lowered and is easy to fall over.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a publicity board for municipal facility management, comprising a base, the top of the base is fixedly connected to two symmetrically arranged columns by bolts, the interiors of the two columns are slidably equipped with first racks, the tops of the two first racks are commonly fixedly connected to a fixing plate by screws, the tops of the fixing plates are fixedly connected to a publicity board by screws, the interiors of the two columns are rotatably installed with a rotating shaft, one end of the rotating shaft is fixedly embedded with a first gear, the other end of the rotating shaft is welded with a rocker, and the first gear is meshed and connected with the first rack;

[0007] A driving wheel is fixedly sleeved on the rotating shaft, two symmetrically arranged worm gears are rotatably installed inside the base, a driven wheel is fixedly sleeved on the worm gear, a synchronous belt is jointly sleeved on the driving wheel and the driven wheel, two symmetrically arranged worm wheels are rotatably installed inside the base, the worm gear and the worm wheel are meshingly connected, the tops of the two worm wheels are fixedly connected to the second gear by screws, four second racks are slidably assembled inside the base, every two of the second racks are meshingly connected to the second gear, and the bottom of the second rack is fixedly connected to a support block by screws.

[0008] Preferably, a limit rod is slidably mounted inside the two columns, one end of the limit rod is inclined, a straight rod is welded to the other end of the limit rod, and one end of the straight rod is fixedly connected to a pull block by a screw.

[0009] Preferably, the inside of the two columns are provided with limiting grooves, the limiting rod is slidably connected inside the limiting grooves, and a spring is commonly connected between one end of the limiting rod and the side wall of the limiting groove to facilitate resetting of the limiting rod.

[0010] Preferably, a plurality of slots equidistantly distributed in an array are provided inside the two first racks, and one end of the limit rod is located inside one of the slots to fix the first racks.

[0011] Preferably, two symmetrically arranged through holes are provided inside the base, and the synchronous belt passes through the through holes so that the driving wheel drives the driven wheel to rotate.

[0012] Preferably, four straight grooves are opened inside the base, and four second racks are slidably connected inside the four straight grooves respectively to facilitate the movement of the second racks.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model rotates the rocker through the arrangement of structures such as the rocker and the support block, so that the rocker drives the first gear to drive the first rack to move upward, and then the driving wheel drives the driven wheel to drive the worm to rotate through the synchronous belt, and the second gear will make the second rack extend outward, so that when the propaganda board is rising, the base can become more stable.

[0015] 2. The utility model provides the first rack and the limit rod and other structures. When the first rack moves upward, the limit rod slides into the slot of the first rack, thereby fixing it, and preventing it from falling downward due to the weight of the propaganda board. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a front cross-sectional view of the column of the utility model;

[0018] Figure 3 It is a top sectional view of the base of the utility model.

[0019] In the figure: 1. base; 2. column; 3. fixed plate; 4. publicity board; 5. driving wheel; 6. rotating shaft; 7. rocker; 8. support block; 9. first rack; 10. first gear; 11. limit rod; 12. spring; 13. straight rod; 14. pull block; 15. slot; 16. worm; 17. driven wheel; 18. worm wheel; 19. second gear; 20. second rack. DETAILED DESCRIPTION

[0020] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3A billboard for municipal facility management comprises a base 1, the top of the base 1 is fixedly connected with two symmetrically arranged columns 2 by bolts, the insides of the two columns 2 are slidably equipped with first racks 9, the tops of the two first racks 9 are fixedly connected with a fixing plate 3 by screws, the top of the fixing plate 3 is fixedly connected with a billboard 4 by screws, the insides of the two columns 2 are rotatably installed with a rotating shaft 6, one end of the rotating shaft 6 is fixedly embedded with a first gear 10, the other end of the rotating shaft 6 is welded with a rocker 7, the first gear 10 is meshed and connected with the first rack 9, a driving wheel 5 is fixedly sleeved on the rotating shaft 6, two symmetrically arranged worms 16 are rotatably installed inside the base 1, a driven wheel 17 is fixedly sleeved on the worm 16, and a synchronous belt is sleeved on the driving wheel 5 and the driven wheel 17 Two symmetrically arranged worm gears 18 are rotatably installed inside the base 1, and the worm 16 and the worm gear 18 are meshed and connected. The tops of the two worm gears 18 are fixedly connected with second gears 19 by screws. Four second racks 20 are slidably assembled inside the base 1, and every two second racks 20 are meshed and connected with the second gear 19. The bottom of the second rack 20 is fixedly connected with a support block 8 by screws. Through the setting of structures such as the rocker 7 and the support block 8, the rocker 7 is rotated so that the rocker 7 drives the first gear 10 to drive the first rack 9 to move upward, and then the driving wheel 5 drives the driven wheel 17 to drive the worm 16 to rotate through the synchronous belt, and the second gear 19 will make the second rack 20 extend outward, so that when the propaganda board 4 is rising, the base 1 can become more stable.

[0022] See also Figure 2 A limit rod 11 is slidably assembled inside the two columns 2, one end of the limit rod 11 is inclined, and a straight rod 13 is welded to the other end of the limit rod 11, and one end of the straight rod 13 is fixedly connected to a pull block 14 by a screw. Through the arrangement of the first rack 9 and the limit rod 11 and other structures, when the first rack 9 moves upward, it slides into the slot 15 of the first rack 9 through the limit rod 11, thereby fixing it, which can prevent it from falling downward due to the weight of the propaganda board 4.

[0023] See also Figure 1-3 The two columns 2 are provided with limit grooves inside, the limit rod 11 is slidably connected inside the limit groove, one end of the limit rod 11 is connected to the side wall of the limit groove with a spring 12, the two first racks 9 are provided with a plurality of arrays of equally spaced slots 15 inside, one end of the limit rod 11 is located inside one of the slots 15, the base 1 is provided with two symmetrically arranged through holes, the synchronous belt passes through the through holes, the base 1 is provided with four straight grooves inside, and the four second racks 20 are respectively slidably connected inside the four straight grooves.

[0024] The specific implementation process of the utility model is as follows: when the height of the propaganda board 4 needs to be adjusted, the two rockers 7 are rotated at the same time, so that the rotating shaft 6 drives the first gear 10 to rotate, and the first gear 10 drives the first rack 9 to move upward, so that the first rack 9 drags the fixed plate 3 to move upward, thereby realizing lifting and lowering, and while the rotating shaft 6 is rotating, the driving wheel 5 is also rotating, and the driving wheel 5 drives the driven wheel 17 to rotate together through the synchronous belt, so that the worm 16 also rotates, and the worm 16 drives the worm wheel 18 to rotate together, and the second gear 19 also rotates, so that the second rack 20 moves outward, forming a better support for the base 1, making the structure more stable, and the diameter of the driven wheel 17 is larger than the width of the second rack 20, so that the second rack 20 is located at the top of the driven wheel 17, and the synchronous belt can also pass through the second rack 20 to form a transmission with the driven wheel 17;

[0025] Furthermore, during use, since the propaganda board 4 has a certain weight and is easy to slide downward, a limit rod 11 is provided on one side of the column 2, and one end of the limit rod 11 is inclined so that the first rack 9 can move upward and cannot fall downward. When it needs to be lowered, the pull block 14 needs to be pulled to move the limit rod 11 to one side, and then the crank can be turned again to lower the first rack 9, thereby adjusting the height to suit more occasions.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A publicity board for municipal facility management, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to two symmetrically arranged columns (2) by bolts, the inside of the two columns (2) are both slidably equipped with first racks (9), the tops of the two first racks (9) are fixedly connected to a fixing plate (3) by screws, the top of the fixing plate (3) is fixedly connected to a publicity board (4) by screws, the inside of the two columns (2) are both rotatably installed with a rotating shaft (6), one end of the rotating shaft (6) is fixedly embedded with a first gear (10), the other end of the rotating shaft (6) is welded with a rocker (7), and the first gear (10) is meshed with the first rack (9); A driving wheel (5) is fixedly sleeved on the rotating shaft (6); two symmetrically arranged worm gears (16) are rotatably mounted inside the base (1); a driven wheel (17) is fixedly sleeved on the worm gear (16); a synchronous belt is sleeved on the driving wheel (5) and the driven wheel (17); two symmetrically arranged worm wheels (18) are rotatably mounted inside the base (1); the worm gear (16) and the worm wheel (18) are meshingly connected; the tops of the two worm wheels (18) are fixedly connected to a second gear (19) by screws; four second racks (20) are slidably mounted inside the base (1); every two of the second racks (20) are meshingly connected to the second gear (19); and the bottoms of the second racks (20) are fixedly connected to a support block (8) by screws.

2. A billboard for municipal facility management according to claim 1, characterized in that: A limiting rod (11) is slidably mounted inside the two uprights (2), one end of the limiting rod (11) is inclined, a straight rod (13) is welded to the other end of the limiting rod (11), and one end of the straight rod (13) is fixedly connected to a pull block (14) by means of screws.

3. A publicity board for municipal facility management according to claim 2, characterized in that: The two uprights (2) are each provided with a limiting groove inside, the limiting rod (11) is slidably connected inside the limiting groove, and a spring (12) is commonly connected between one end of the limiting rod (11) and the side wall of the limiting groove.

4. A billboard for municipal facility management according to claim 2, characterized in that: A plurality of slots (15) arranged in an array and evenly spaced from each other are provided inside the two first racks (9), and one end of the limit rod (11) is located inside one of the slots (15).

5. The publicity board for municipal facility management according to claim 1, characterized in that: Two symmetrically arranged through holes are provided inside the base (1), and the synchronous belt passes through the through holes.

6. A billboard for municipal facility management according to claim 1, characterized in that: Four straight grooves are provided inside the base (1), and the four second racks (20) are slidably connected inside the four straight grooves respectively.

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