Outdoor knowledge propaganda frame facilitating night observation

Abstract

The utility model relates to the technical field of propaganda racks, in particular to an outdoor knowledge propaganda rack convenient to observe at night, which comprises a display board and a mounting board, sliding rails are mounted on two sides of the front end of the display board, motors are mounted at the lower ends of the sliding rails, screws are connected in the sliding rails, and the screws are fixedly connected with output shafts of the motors. Sliding blocks are in threaded connection with the outer sides of the screw rods, movable rods are installed in the middles of the two sliding blocks, and cleaning cloth is arranged at the rear ends of the movable rods and attached to the display board; a photosensitive sensor is installed at the upper end of the display board, four LED bulbs are installed in the display board, and a controller is installed in the installation board. According to the utility model, the defects in the prior art are overcome, the watching effect at night is effectively improved by arranging the photosensitive sensor, the controller and the LED bulb, the waste of redundant energy can be avoided, and the workload of workers is effectively reduced by arranging the sliding rail, the motor, the screw rod, the sliding block, the movable rod and the cleaning cloth.

Description

Technical Field

[0001] The utility model relates to the technical field of propaganda racks, in particular to an outdoor knowledge propaganda rack which is convenient for nighttime observation. Background Art

[0002] An outdoor knowledge promotion stand is a device used to display outdoor safety knowledge and related skills. It is usually placed in outdoor sports venues or tourist attractions. The display form of the outdoor knowledge promotion stand can be in various forms such as pictures, texts, videos, etc., so that people with different needs can learn and understand. In combination with existing literature, a promotion stand that is easy to move and adjust (CN219979110U) includes a support frame, a display board is provided at the top of the support frame, a mounting base is provided at the bottom of the support frame, and the shape formed by the support frame and the mounting base is T-shaped, and movable universal wheels are provided on both sides of the bottom of the mounting base. Extrusion blocks are inserted on both sides of the top of the mounting base, and the extrusion blocks pass through the mounting base and extend to the bottom of the mounting base. The utility model can make the extrusion block move, and then make the extrusion block contact with the ground, so that the extrusion block can complete the limit of the support frame through friction, avoid the movement of the support frame in the case of strong wind, and make the stability of the support frame better after being placed. It can be seen that at least the following defects are exposed during use:

[0003] 1. During the use of outdoor knowledge promotion stands, since outdoor knowledge promotion stands are illuminated by light bulbs, if the brightness of the light bulbs is too bright or too dim at night, it will affect the viewing effect of outdoor knowledge on the promotion stands at night. In addition, in an environment where brighter lighting is not required, too bright lighting will consume more energy, resulting in excess energy waste.

[0004] 2. Over a long period of time, dust and other dirt will adhere to the surface of the outdoor knowledge propaganda stand, which may affect the viewing clarity of the propaganda stand. However, when the outdoor knowledge propaganda stand needs to be cleaned, it may be necessary to manually wipe and clean the outdoor knowledge propaganda stand with the help of tools, thereby increasing the manual workload. Utility Model Content

[0005] The purpose of the utility model is to provide an outdoor knowledge publicity rack which is convenient for nighttime observation, so as to solve the problems of the existing outdoor knowledge publicity rack in the use process proposed in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] An outdoor knowledge propaganda stand that is convenient for nighttime observation comprises a display board and a mounting plate, wherein slide rails are installed on both sides of the front end of the display board, motors are installed at the lower ends of the slide rails, screws are connected inside the slide rails, the screws are fixedly connected to the output shaft of the motor, sliders are threadedly connected to the outer sides of the screws, movable rods are installed in the middle of the two sliders, cleaning cloths are provided at the rear ends of the movable rods and the cleaning cloths are fitted with the display board; a light-sensitive sensor is installed at the upper end of the display board, four LED bulbs are installed inside the display board, and a controller is installed inside the mounting plate.

[0008] Preferably, two connecting blocks are installed at the left and right ends of the display board, and one end of each of the two connecting blocks is installed with a supporting column.

[0009] Preferably, baffles are installed on the upper ends of the two support columns.

[0010] Preferably, two support frames are installed on the upper end of the baffle, and solar panels are installed on the upper ends of the support frames. The solar panels are arranged to open and close at forty-five degrees.

[0011] Preferably, a mounting plate is installed at the rear end of the display board, and a battery, an inverter, and a controller are installed inside the mounting plate.

[0012] Preferably, an A / D converter and a central processing unit are provided in the controller, and the signal output end of the A / D converter is connected to the signal receiving end of the central processing unit, the signal output end of the photosensor is connected to the A / D converter in the controller, and the LED bulb is electrically connected to the central processing unit in the controller.

[0013] Preferably, two support frames and solar panels are evenly distributed in the transverse direction.

[0014] The embodiment of the utility model provides an outdoor knowledge publicity rack that is convenient for nighttime observation, and has the following beneficial effects:

[0015] 1. By setting up a photosensitive sensor, a controller, and an LED bulb, the photosensitive sensor senses the change of ambient light by measuring the light intensity. The photosensitive sensor is connected to the A / D converter signal of the controller, and the signal output end of the A / D converter is connected to the signal receiving end of the central processing unit. The controller will adjust the brightness of the LED bulb according to the change of the resistance value of the photosensitive sensor, so that the brightness of the LED bulb can be adjusted to a suitable brightness in different environments, thereby effectively improving the viewing effect at night and avoiding unnecessary energy waste.

[0016] 2. By setting the slide rail, motor, screw, slider, movable rod and cleaning cloth, when the promotional stand needs to be cleaned, start the motor, the motor will drive the screw to rotate, the screw will drive the slider to move up and down, the slider will drive the movable rod to move up and down, and during the movement of the movable rod up and down, the cleaning cloth at the rear end of the movable rod will clean the surface of the display board, thereby effectively reducing the workload of manual labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the display board of the utility model;

[0020] Figure 3 This is a schematic diagram of the rear end structure of the movable rod of the utility model;

[0021] Figure 4 It is a schematic diagram of the internal structure of the mounting plate of the utility model.

[0022] In the figure: 1. display board; 2. support column; 3. baffle; 4. connecting block; 5. movable rod; 6. slide rail; 7. support frame; 8. solar panel; 9. LED bulb; 10. screw; 11. slider; 12. photosensitive sensor; 13. cleaning cloth; 14. motor; 15. mounting plate; 16. battery; 17. inverter; 18. controller. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] Example: Figure 1-3As shown, an outdoor knowledge propaganda rack convenient for night observation includes a display board 1, two connecting blocks 4 are installed at the left and right ends of the display board 1, one end of the two connecting blocks 4 is installed with a supporting column 2, the display board 1 is fixedly connected to the supporting column 2 through the connecting block 4, so as to support the display board 1, a baffle 3 is installed at the upper end of the two supporting columns 2, two supporting frames 7 are installed through the upper end of the baffle 3, the upper ends of the supporting frames 7 are installed with solar panels 8, and the solar panels 8 are fixed through the supporting frames 7, and slide rails 6 are installed on both sides of the front end of the display board 1, the interior of the slide rails 6 is connected with a screw rod 10, and the lower end of the slide rails 6 is installed with a motor 14, the output shaft of the motor 14 is fixedly connected with the screw rod 10, and the screw rod 10 is driven to rotate by the motor 14, and the outer side of the screw rod 10 is threadedly connected with a slider 11, and the slider 11 will be driven to move up and down during the rotation of the screw 10, and the middle part of the two sliders 11 is installed with a movable rod 5, and the slider 11 will be moved up and down during the movement of the slider 11 The movable rod 5 is driven to move up and down. A cleaning cloth 13 is installed at the rear end of the movable rod 5. The cleaning cloth 13 moves up and down to clean the surface of the display board 1. A photosensitive sensor 12 is installed at the upper end of the display board 1. The photosensitive sensor 12 can be a photosensitive sensor 12 (model: SFH2500) currently sold on the market. It has high sensitivity and anti-interference ability. Four LED bulbs 9 are installed inside the display board 1. The photosensitive sensor 12 senses the change of ambient light by measuring the light intensity. The photosensitive sensor 12 is connected to the A / D converter signal of the controller 18. The signal output end of the A / D converter is connected to the signal receiving end of the central processing unit. The controller 18 adjusts the brightness of the LED bulb 9 according to the change of the resistance value of the photosensitive sensor 12, so that the brightness of the LED bulb 9 can be adjusted to a suitable brightness in different environments, thereby effectively improving the viewing effect at night and avoiding unnecessary energy waste.

[0025] like Figure 4 As shown, an inverter 17, a controller 18, and a battery 16 are installed inside the mounting plate 15. The solar panel 8 converts the absorbed solar energy through the inverter 17 and transmits it to the inside of the battery 16, thereby supplying power to the LED bulb 9, thereby achieving the effect of energy saving and environmental protection.

[0026] Working principle: at night, turn on the LED bulb 9 to illuminate the display board 1, and the photosensor 12 senses the change of ambient light by measuring the light intensity. The photosensor 12 at the upper end of the display board 1 is connected to the A / D converter signal of the controller 18, and the signal output end of the A / D converter is connected to the signal receiving end of the central processing unit. The controller 18 will adjust the brightness of the LED bulb 9 according to the change of the resistance value of the photosensor 12, so that the brightness of the LED bulb 9 can be adjusted to a suitable brightness under different environments, thereby effectively improving the viewing effect at night and avoiding unnecessary energy waste. When it is necessary to clean the surface of the display board 1, start the motor 14, the motor 14 will drive the screw 10 to rotate, the screw 10 will drive the slider 11 to move up and down, and the slider 11 will drive the movable rod 5 to move up and down. During the movement of the movable rod 5 up and down, the cleaning cloth 13 at the rear end of the movable rod 5 will clean the surface of the display board 1, thereby effectively reducing the manual workload.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An outdoor knowledge propaganda stand that is convenient for nighttime observation, characterized in that: include: A display board (1) and a mounting board (15), wherein slide rails (6) are installed on both sides of the front end of the display board (1), a motor (14) is installed at the lower end of each of the slide rails (6), a screw rod (10) is connected to the inside of each of the slide rails (6), the screw rod (10) is fixedly connected to the output shaft of the motor (14), a slider (11) is threadedly connected to the outer side of each of the screw rods (10), a movable rod (5) is installed in the middle of the two sliders (11), a cleaning cloth (13) is provided at the rear end of each of the movable rods (5), and the cleaning cloth (13) is in contact with the display board (1); A photosensitive sensor (12) is installed at the upper end of the display board (1), four LED bulbs (9) are installed inside the display board (1), and a controller (18) is installed inside the mounting plate (15).

2. The outdoor knowledge publicity stand for nighttime observation according to claim 1 is characterized in that: Two connection blocks (4) are installed at the left and right ends of the display board (1), and one end of each of the two connection blocks (4) is installed with a support column (2).

3. The outdoor knowledge publicity stand for nighttime observation according to claim 2 is characterized in that: Baffles (3) are installed on the upper ends of the two support columns (2).

4. The outdoor knowledge publicity stand for nighttime observation according to claim 3 is characterized in that: Two support frames (7) are installed on the upper end of the baffle (3), and solar panels (8) are installed on the upper ends of the support frames (7). The solar panels (8) are arranged to open and close at a 45-degree angle.

5. The outdoor knowledge publicity stand for nighttime observation according to claim 1 is characterized in that: A mounting plate (15) is installed at the rear end of the display board (1), and a storage battery (16), an inverter (17), and a controller (18) are installed inside the mounting plate (15).

6. The outdoor knowledge propaganda stand for nighttime observation according to claim 5 is characterized in that: The controller (18) is provided with an A / D converter and a central processing unit, and the signal output end of the A / D converter is connected to the signal receiving end of the central processing unit, the signal output end of the photosensor (12) is connected to the A / D converter in the controller (18), and the LED bulb (9) is electrically connected to the central processing unit in the controller (18).

7. The outdoor knowledge publicity stand for nighttime observation according to claim 4 is characterized in that: The support frame (7) and the solar panel (8) are arranged in two evenly distributed in the transverse direction.

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