Outdoor LED display screen

Abstract

The utility model relates to the technical field of outdoor display screens, in particular to an outdoor LED display screen which comprises a display screen body, a protection box is arranged outside the display screen body, a containing cavity with a downward opening is formed in the protection box, the display face of the display screen body faces the interior of the protection box, and an electric telescopic rod is installed in the containing cavity. A horizontally-moving connecting piece is fixedly installed at the output end of the electric telescopic rod, first swing rods are rotationally installed at the two ends of the connecting piece correspondingly, second swing rods are rotationally installed on the first swing rods, one end of each second swing rod is rotationally connected with the protection box, and a connecting rod is rotationally installed at the other end of each second swing rod. The end part of the connecting rod and the end part of the first swing rod are jointly and rotationally connected with the display screen; under the condition that the output shaft of the electric telescopic rod extends, the display screen can gradually retract into the protection box, so that the safety of the outdoor display screen is guaranteed, and short circuit damage is not prone to occurring.

Description

Technical Field

[0001] This utility model relates to the field of outdoor display technology, specifically to an outdoor LED display screen. Background Technology

[0002] An LED display screen is a flat panel display composed of LED modules, used to display various information such as text, images, videos, and recorded signals, providing a variety of conveniences for people's daily lives. With the widespread application of LED displays and the continuous improvement of people's needs, the structure and function of display screen products are gradually becoming more diversified, and the application of outdoor LED displays is becoming more and more widespread. The requirements for the versatility, installation, and daily maintenance of displays are also becoming higher and higher.

[0003] Existing outdoor displays cannot be effectively waterproofed during use, which can easily cause damage and short circuits, posing safety hazards. Therefore, some outdoor displays are fitted with rain shields on top of them. However, in windy and rainy weather, rainwater can still be blown onto the display, posing a risk of short circuits.

[0004] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to design a display screen that can be used outdoors and can be retracted during wind and rain to prevent rainwater from entering and causing short circuit damage, thereby solving the above-mentioned shortcomings in the technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an outdoor LED display screen, including a display screen, a protective box outside the display screen, a downward-opening receiving cavity inside the protective box, the display side of the display screen facing the inside of the protective box, an electric telescopic rod installed inside the receiving cavity, a horizontally movable connecting piece fixedly installed at the output end of the electric telescopic rod, a first swing rod rotatably installed at both ends of the connecting piece, a second swing rod rotatably installed on the first swing rod, one end of the second swing rod rotatably connected to the protective box, and a connecting rod rotatably installed at the other end, the end of the connecting rod and the end of the first swing rod rotatably connected to the display screen;

[0007] The horizontal movement of the end of the first swing arm changes the angle between the first and second swing arms, as well as the angle between the connecting rod and the display screen, thereby driving the display screen to fold out or fold back into the protective case.

[0008] Preferably, the connector includes a horizontal tube rotatably connected to the end of the electric telescopic rod, a slider fixedly connected to both ends of the horizontal tube, and a guide strip fixedly installed on the inner wall of the protective box. The guide strip has a horizontally arranged guide groove, the slider is slidably connected in the guide groove, the horizontal tube is rotatably connected to the end of the first swing rod, and the end of the second swing rod is rotatably connected to the guide strip.

[0009] Preferably, the connecting rod and the first swing rod are parallel.

[0010] Preferably, a triangular plate is also fixedly connected to the display screen, and the connecting rod and the first swing rod are rotatably connected to the triangular plate.

[0011] Preferably, when the slider is located at the end of the guide groove away from the electric telescopic rod, the display surface of the display screen faces upward and is located inside the protective box.

[0012] Preferably, when the slider is located at one end of the guide groove near the electric telescopic rod, there is an angle between the display surface of the display screen and the bottom surface of the protective box.

[0013] Preferably, the included angle is ≥90°.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0015] 1. With the extension of the output shaft of the electric telescopic pole, the display screen will gradually retract into the protective box. In addition, the protective box is open downwards, so when it is windy or rainy, rainwater will flow down through the surface of the protective box instead of falling onto the display screen, thus ensuring the safety of the outdoor display screen and making it less prone to short circuit damage.

[0016] 2. When this product is retracted into the protective case, the display side faces upwards. Therefore, in the retracted state, it can reduce the amount of dust from the outside adhering to the display surface under the action of wind, thus extending the time required to clean the display surface.

[0017] 3. When the output shaft of the electric telescopic pole is shortened, the display screen will fold out from the protective box and move downward a certain distance, making it convenient for onlookers to view the information on the display screen. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the protective box of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the protective box of this utility model;

[0022] Figure 4 This is a side view of the present invention.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Display screen; 2. Protective box; 3. Receiving cavity; 4. Electric telescopic rod; 5. Connector; 5a. Horizontal tube; 5b. Slider; 5c. Guide bar; 5d. Guide groove; 6. First swing arm; 7. Second swing arm; 8. Connecting rod; 9. Triangle plate. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0027] This utility model provides, for example Figure 1-4 An outdoor LED display screen is shown, including a display screen 1, a protective box 2 outside the display screen 1, and a downward-opening receiving cavity 3 inside the protective box 2. The display side of the display screen 1 faces the inside of the protective box 2. An electric telescopic rod 4 is installed in the receiving cavity 3. A horizontally movable connector 5 is fixedly installed at the output end of the electric telescopic rod 4. The connector 5 includes a horizontal tube 5a rotatably connected to the end of the electric telescopic rod 4, a slider 5b fixedly connected to both ends of the horizontal tube 5a, and a guide strip 5c fixedly installed on the inner wall of the protective box 2. A horizontally set guide groove 5d is opened in the guide strip 5c. The slider 5b is slidably connected in the guide groove 5d. A first swing rod 6 is rotatably installed at both ends of the horizontal tube 5a. A second swing rod 7 is rotatably installed on the first swing rod 6. The end of the second swing rod 7 is rotatably connected to the guide strip 5c. One end of the second swing rod 7 is rotatably connected to the guide strip 5c, and the other end is rotatably installed with a connecting rod 8. The connecting rod 8 is parallel to the first swing rod 6. A triangular plate 9 is rotatably installed at the end of the connecting rod 8 and the end of the first swing rod 6, and is rotatably connected to the two ends of the triangular plate 9. The triangular plate 9 is fixedly connected to the display screen 1.

[0028] In the initial state, the protective box 2 is installed horizontally at the desired display location. It can be fixed with the receiving cavity 3 of the protective box 2 facing downwards using a 7-type street lamp-style mounting component. Initially, the output shaft of the electric telescopic rod 4 is extended to its longest length. At this time, the slider 5b is located at the end of the guide groove 5d, and the display side of the display screen 1 faces upwards. The entire display screen 1 is located inside the protective box 2. At this time, water will not enter the display screen 1 when it is windy or rainy.

[0029] As the output shaft of the electric telescopic rod 4 shortens, the electric telescopic rod 4 drives the horizontal tube 5a, which in turn drives the slider 5b to slide within the guide groove 5d. When the horizontal tube 5a moves, it causes the end of the first swing rod 6 to move. At this time, the angle between the first swing rod 6 and the second swing rod 7 decreases, causing the second swing rod 7 to swing. When the first and second swing rods 6 and 7 swing, since the connecting rod 8 and the first swing rod 6 are parallel, and the ends of the first swing rod 6 and the connecting rod 8 are jointly mounted with a triangular plate 9, and the second swing rod 7 is parallel to the base of the triangular plate 9, the connecting rod 8 and the triangular plate 9... The included angle between the corner plates 9 will also decrease synchronously. At this time, the display screen 1 will gradually deflect under the cooperation of the first swing rod 6, the second swing rod 7, the connecting rod 8 and the corner plate 9. When the included angle between the display surface of the display screen 1 and the bottom surface of the protective box 2 is ≥90°, the output shaft of the electric telescopic rod 4 will stop shortening. And because the included angle between the first swing rod 6 and the second swing rod 7 becomes smaller, the distance between the end of the connecting rod 8 connected to the corner plate 9 and the bottom surface of the protective box 2 becomes larger. Therefore, the display screen 1 will also move downward, thereby increasing the distance between it and the protective box 2, reducing the height, and making it easier to view.

[0030] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application.

Claims

1. An outdoor LED display screen, comprising a display screen (1), characterized in that: The display screen (1) has a protective box (2) outside, and a downward-opening receiving cavity (3) inside the protective box (2). The display side of the display screen (1) faces the inside of the protective box (2). An electric telescopic rod (4) is installed inside the receiving cavity (3). A horizontally movable connector (5) is fixedly installed at the output end of the electric telescopic rod (4). A first swing rod (6) is rotatably installed at both ends of the connector (5). A second swing rod (7) is rotatably installed on the first swing rod (6). One end of the second swing rod (7) is rotatably connected to the protective box (2), and a connecting rod (8) is rotatably installed at the other end. The end of the connecting rod (8) and the end of the first swing rod (6) are rotatably connected to the display screen (1). The horizontal movement of the end of the first swing arm (6) causes the angle between the first swing arm (6) and the second swing arm (7), as well as the angle between the connecting rod (8) and the display screen (1), to change, thereby driving the display screen (1) to fold out or fold back into the protective box (2).

2. An outdoor LED display screen according to claim 1, characterized in that: The connector (5) includes a horizontal tube (5a) rotatably connected to the end of the electric telescopic rod (4), a slider (5b) fixedly connected to both ends of the horizontal tube (5a), and a guide strip (5c) fixedly installed on the inner wall of the protective box (2). The guide strip (5c) has a horizontally arranged guide groove (5d) in it. The slider (5b) is slidably connected in the guide groove (5d). The horizontal tube (5a) is rotatably connected to the end of the first swing rod (6), and the end of the second swing rod (7) is rotatably connected to the guide strip (5c).

3. An outdoor LED display screen according to claim 1, characterized in that: The connecting rod (8) is parallel to the first swing rod (6).

4. An outdoor LED display screen according to claim 1, characterized in that: A triangular plate (9) is also fixedly connected to the display screen (1), and the connecting rod (8) and the first swing rod (6) are rotatably connected to the triangular plate (9).

5. An outdoor LED display screen according to claim 2, characterized in that: When the slider (5b) is located at the end of the guide groove (5d) away from the electric telescopic rod (4), the display surface of the display screen (1) faces upward and is located inside the protective box (2).

6. An outdoor LED display screen according to claim 2, characterized in that: When the slider (5b) is located at one end of the guide groove (5d) near the electric telescopic rod (4), there is an angle between the display surface of the display screen (1) and the bottom surface of the protective box (2).

7. An outdoor LED display screen according to claim 6, characterized in that: The included angle is ≥90°.

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