Protective device for public electronic screens adaptable to complex weather

Abstract

The present invention relates to the technical field of public electronic screens, specifically a protection device for public electronic screens that can adapt to complex weather. It includes a base and a lower bracket fixed on the upper surface of the base, and a controller is installed inside the base. Through the combined design of the electronic screen housing, sunshade, transmission mechanism, electromagnetic adsorption mechanism, meshing mechanism, reset mechanism, and limiting mechanism, the invention can, in extreme weather such as hail or strong wind, by controlling the forward rotation of the second motor and the first motor, rotate the sunshade to fit with the electronic screen housing, and make the electronic screen housing fit with the lower bracket. Furthermore, it can rotate the electronic screen body and the solar panel to the position of the lower bracket, expose the electronic screen housing and the air deflector to the outside, and play a protective role for the electronic screen body and the solar panel, preventing heavier debris carried by hail or strong wind from smashing the electronic screen body, greatly improving the safety of the electronic screen body in bad weather.

Description

Technical Field

[0001] The present invention relates to the technical field of public electronic screens, and specifically to a protection device for public electronic screens that can adapt to complex weather. Background Art

[0002] Outdoor electronic display screens usually appear in the form of outdoor media. Outdoor media refers to the media for publishing advertising information set on the rooftops of main buildings, in front of commercial areas, by the roadside and other outdoor venues. The main forms include road LED display screens, LED electronic display screens, LED full-color screens, LED screens, balloons, airships, carriages, large inflatable models, etc. Outdoor LED electronic screen media is the development trend of the advertising industry in the 21st century. It is an indoor and outdoor advertising display device with audio and video functions, belonging to internationally leading high-tech products and has been widely used in various places.

[0003] Upon retrieval, a patent with the publication number CN221040424U discloses an outdoor billboard support protection device, which relates to the technical field of protection devices and includes a base. Both sides of the upper end of the base are fixedly installed with support rods. Chutes are opened at the upper ends of the two support rods. Among them, lifting columns are slidably installed in the chutes opened by the two support rods. A connecting rectangular rod is fixedly installed between the lower ends of the two lifting columns, and a connecting round rod is fixedly installed between the upper ends of the two lifting columns. In this new type, through the connecting rectangular rod, the two lifting columns and the base arranged at the rear end of the advertising electronic screen, the advertising electronic screen in the device can be adjusted in height, so as to adapt to the use of the advertising electronic screen in different scenarios. Moreover, the advertising electronic screen can also drive the movement of the pressing plate by rotating the first screw rod to adjust the angle, so as to conveniently adjust the viewing angle of the advertising electronic screen according to different scenarios.

[0004] Although the outdoor electronic screen in the above patent can adapt to use in different scenarios and adjust the angle, so as to conveniently adjust the viewing angle of the advertising electronic screen according to different scenarios, when used outdoors, the protection effect on the electronic screen is relatively low, and it is difficult to use in some complex weather. In some areas with more extreme weather, such as hail weather or strong wind weather, the heavier sundries carried by hail or strong wind are likely to damage the electronic screen, which will not only greatly increase the maintenance cost but also affect the normal use. Summary of the Invention

[0005] The purpose of the present invention is to provide a protection device for public electronic screens that can adapt to complex weather, so as to solve the problem that the electronic screen is easily damaged in areas with more extreme weather.

[0006] The present invention provides the following technical solution: a protection device for a public electronic screen adaptable to complex weather, including a base and a lower bracket fixed on the upper surface of the base. Two transmission boxes are fixedly connected to the upper surface of the lower bracket. An upper bracket is arranged above the lower bracket. The two ends of the upper bracket are respectively fixed to the two transmission boxes. Two electronic screen housings are rotatably connected between the two transmission boxes. A sunshade is arranged outside each electronic screen housing. A transmission mechanism is arranged between the electronic screen housing and the sunshade. The transmission mechanism includes a first gear rotatably connected to the outer surface of the electronic screen housing and a second gear fixedly connected to the outer surface of the sunshade. The first gear meshes with the second gear. A meshing mechanism is arranged inside the transmission box. The meshing mechanism includes two third gears and two fourth gears rotatably connected to the inner wall of the transmission box. Winding wheels are fixedly connected to the outer surfaces of the two fourth gears. The central rotating shafts of the two third gears respectively penetrate through the transmission box and are rotatably connected to the transmission box. The central rotating shafts of the two third gears are respectively fixedly connected to the outer surfaces of the two electronic screen housings. Two square columns are arranged outside the two sides of the upper bracket. A reset mechanism is arranged inside each square column. A limiting mechanism is arranged outside each reset mechanism. Two electromagnetic adsorption mechanisms are arranged on the outer surface of each electronic screen housing. The electromagnetic adsorption mechanism includes a fixed cylinder fixed on the outer surface of the electronic screen housing. A metal conductor is arranged inside the fixed cylinder. An electrode plate one is fixedly connected to the bottom end of the metal conductor. An electrode plate two is slidably connected to the inner wall of the fixed cylinder.

[0007] In some embodiments, the transmission mechanism further includes a connecting piece. Both the first gear and the second gear are rotatably connected to the connecting piece. A first motor is fixedly connected to the outer surface of the connecting piece. The output rotating shaft of the first motor penetrates through the connecting piece and is rotatably connected to the connecting piece. The output rotating shaft of the first motor is fixedly connected to the central rotating shaft of the first gear. A fixing plate is fixedly connected to the outer surface of the first motor. A fixing rod is fixedly connected to the outer surface of the fixing plate. The end of the fixing rod away from the fixing plate is fixedly connected to the outer surface of the electronic screen housing.

[0008] In some embodiments, a wire is wound around the outer surface of the metal conductor. A through rod is fixedly connected to the middle of the metal conductor. The through rod is fixedly connected to the inner wall of the fixed cylinder.

[0009] In some embodiments, the two third gears are respectively meshed with two fourth gears. A connecting column is fixedly connected to the inner wall of the transmission case. The upper end of the connecting column is fixedly connected with a second motor. The output rotating shaft of the second motor is fixedly connected to the middle rotating shaft of the third gear. Two symmetrically arranged arc-shaped grooves are formed on the outer surface of the transmission case. A first guide rod is slidably connected to the inside of each arc-shaped groove. One ends of the two first guide rods are respectively fixedly connected to the outer surfaces of the two electronic screen housings. Two symmetrically arranged through holes are formed on the upper surface of the transmission case.

[0010] In some embodiments, the reset mechanism includes a lifting block slidably connected inside the square column. The upper surface of the lifting block is fixedly connected with a lifting rod. The upper end of the lifting rod penetrates through the square column and is slidably connected with the square column. The upper end of the lifting rod penetrates through the upper support and is slidably connected with the upper support. The bottom surface of the lifting block is fixedly connected with a limiting rod. The bottom end of the limiting rod extends into the square column and is slidably connected with the square column. The bottom surface of the lifting block is fixedly connected with a reset spring. The reset spring is sleeved on the outer surface of the limiting rod. The bottom end of the reset spring is fixedly connected with the inner wall of the square column. The bottom surface of the lifting block is fixedly connected with two symmetrically arranged stay wires. Each stay wire penetrates through the square column and is slidably connected with the square column. The two stay wires respectively penetrate through the two through holes and are fixed to the surfaces of the two winding wheels.

[0011] In some embodiments, the limiting mechanism includes a support plate. The outer surface of the support plate is fixedly connected with the upper end of the lifting rod. Two fixed sleeves are fixedly connected to the upper surface of the support plate. A lifting shell is slidably connected to the inside of each fixed sleeve. An electrode plate three is fixedly connected to the inner bottom wall of the fixed sleeve. A metal sheet and an electrode plate four are respectively fixedly connected to the upper surface and the bottom surface of the lifting shell. A connecting rod is fixedly connected to the bottom surface of the support plate.

[0012] In some embodiments, a cross-shaped body is fixedly connected to the inner wall of the upper support. A reflective sticker is fixedly connected to the middle of the cross-shaped body. A slider is slidably connected to the outer surface of the cross-shaped body. The connecting rod is fixedly connected to the outer surface of the slider.

[0013] In some embodiments, a lifting protection mechanism is arranged above the slider. The lifting protection mechanism includes a protection shell fixedly connected to the inner top wall of the upper support. A jacking rod is fixedly connected to the upper surface of the slider. The jacking rod penetrates through the protection shell and is slidably connected with the protection shell. The top of the jacking rod is fixedly connected with a lifting seat. A camera is fixedly connected to the upper surface of the lifting seat. Two symmetrically arranged fans are installed on the upper surface of the upper support.

[0014] In some embodiments, two stabilizing mechanisms are provided on the outer surface of each sun visor. The stabilizing mechanism includes a hinge piece rotatably connected to the outer surface of the sun visor. An articulated rod is hinged to the outer surface of the hinge piece. One end of the articulated rod away from the hinge piece is hinged with a limiting block. A slideway is formed on the outer surface of the electronic screen housing. The limiting block is slidably connected to the inside of the slideway. A guide rod is fixedly connected to the outer surface of the limiting block. A compression spring is fixedly connected to the outer surface of the limiting block. The bottom end of the compression spring is fixedly connected to the inner bottom wall of the slideway.

[0015] In some embodiments, an armrest is provided above the base. The two ends of the armrest are fixedly connected to the lower bracket and the upper bracket respectively. A chute is formed on the outer surface of the armrest. A guide post is fixedly connected to the outer surface of the electronic screen housing. The guide post is slidably connected to the inside of the chute. A wind guide plate is fixedly connected to the outer surface of each electronic screen housing. A solar panel is fixedly connected to the outer surface of each sun visor. A protective door is detachably installed on the outer surface of the base. An electronic screen body is installed inside each electronic screen housing.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] Through the cooperative design of the electronic screen housing, the sun visor, the transmission mechanism, the electromagnetic adsorption mechanism, the meshing mechanism, the reset mechanism and the limiting mechanism, the present application can, in extreme weather such as hail or strong wind, by controlling the forward rotation of the second motor and the first motor, rotate the sun visor to fit with the electronic screen housing, and make the electronic screen housing fit with the lower bracket. Furthermore, the electronic screen body and the solar panel can be rotated to the position of the lower bracket, and the electronic screen housing and the wind guide plate are exposed outside, which can protect the electronic screen body and the solar panel, and prevent heavier sundries carried by hail or strong wind from smashing the electronic screen body, greatly improving the safety of the electronic screen body in bad weather.

[0018] Through the cooperative design of the jacking rod, the protective shell, the lifting seat and the camera, the present application can retract the camera into the protective shell after the electronic screen body is closed, and can provide a certain protection for the camera in extreme weather.

[0019] Through the cooperative design of the hinge piece, the articulated rod, the slideway, the compression spring, the limiting block and the guide rod, the present application can greatly increase the stability of the sun visor when it rotates towards the electronic screen housing, and can greatly reduce the pressure during the transmission of the transmission mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic perspective view of the overall structure of the public electronic screen protection device adaptable to complex weather according to the present invention;

[0021] Figure 2Partial three-dimensional structure diagram of the protection device for a public electronic screen adaptable to complex weather according to the present invention;

[0022] Figure 3 External three-dimensional structure diagram of the electronic screen housing and sunshade of the protection device for a public electronic screen adaptable to complex weather according to the present invention;

[0023] Figure 4 Structure diagram of the lower bracket and transmission box of the protection device for a public electronic screen adaptable to complex weather according to the present invention;

[0024] Figure 5 Internal three-dimensional structure diagram of the transmission box of the protection device for a public electronic screen adaptable to complex weather according to the present invention;

[0025] Figure 6 Internal three-dimensional structure diagram of the upper bracket of the protection device for a public electronic screen adaptable to complex weather according to the present invention;

[0026] Figure 7 Three-dimensional structure diagram of the limiting mechanism of the protection device for a public electronic screen adaptable to complex weather according to the present invention;

[0027] Figure 8 Three-dimensional structure diagram of the transmission mechanism and electromagnetic adsorption mechanism of the protection device for a public electronic screen adaptable to complex weather according to the present invention;

[0028] Figure 9 Internal three-dimensional structure diagram of the square column of the protection device for a public electronic screen adaptable to complex weather according to the present invention;

[0029] Figure 10 Three-dimensional structure diagram of the lifting protection mechanism of the protection device for a public electronic screen adaptable to complex weather according to the present invention;

[0030] Figure 11 For the protection device for a public electronic screen adaptable to complex weather according to the present invention Figure 3 Enlarged structure diagram of part A;

[0031] Reference numerals in the figure: 1, base; 2, lower bracket; 3, transmission box; 4, upper bracket; 5, electronic screen housing; 6, sunshade; 7, solar panel;

[0032] 8, transmission mechanism; 801, first gear; 802, second gear; 803, connecting piece; 804, fixed rod; 805, fixing plate; 806, first motor;

[0033] 9, electromagnetic adsorption mechanism; 901, fixed cylinder; 902, metal conductor; 903, wire; 904, through rod; 905, electrode plate 1; 906, electrode plate 2;

[0034] 10. Meshing mechanism; 1001. Third gear; 1002. Fourth gear; 1003. Second motor; 1004. Connecting column; 1005. Winding wheel; 1006. Arc groove; 1007. Guide rod 1; 1008. Through hole;

[0035] 11. Square column;

[0036] 12. Reset mechanism; 1201. Lifting block; 1202. Lifting rod; 1203. Reset spring; 1204. Limiting rod; 1205. Pull wire;

[0037] 13. Limiting mechanism; 1301. Support plate; 1302. Fixed sleeve; 1303. Electrode plate 3; 1304. Lifting shell; 1305. Electrode plate 4; 1306. Metal sheet; 1307. Connecting rod;

[0038] 14. Slide block; 15. Cross body; 16. Reflective sticker;

[0039] 17. Lifting protection mechanism; 1701. Jacking rod; 1702. Protection shell; 1703. Lifting seat; 1704. Camera;

[0040] 18. Fan;

[0041] 19. Stabilizing mechanism; 1901. Hinge piece; 1902. Hinge rod; 1903. Slideway; 1904. Extrusion spring; 1905. Limiting block; 1906. Guide rod;

[0042] 20. Guide post; 21. Handrail; 22. Slide groove; 23. Air deflector; 24. Protection door; 25. Electronic screen body. Detailed implementation manner

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0044] See Figure 1 and Figure 2, the present invention provides a protection device for a public electronic screen adaptable to complex weather, including a base 1 and a lower bracket 2 fixed on the upper surface of the base 1. Above the base 1, there is a handrail 21. The two ends of the handrail 21 are respectively fixedly connected to the lower bracket 2 and the upper bracket 4. The handrail 21 is semi-circular in shape, which can facilitate people to hold the handrail 21 to watch the electronic screen body 25 during use. A chute 22 is provided on the outer surface of the handrail 21. A guide post 20 is fixedly connected to the outer surface of the electronic screen housing 5. The guide post 20 is slidably connected inside the chute 22, and by sliding the guide post 20 inside the chute 22, the stability of the electronic screen housing 5 during rotation can be enhanced. A wind guide plate 23 is fixedly connected to the outer surface of each electronic screen housing 5. The wind guide plate 23 can be made of a lighter material, such as plastic or rubber material. In this application, a hard plastic material is used, and its sloped shape can reduce the wind resistance when the electronic screen housing 5 is closed.

[0045] A solar panel 7 is fixedly connected to the outer surface of each sunshade 6. The solar panel 7 is a prior art, which can convert solar energy into electrical energy for the use of this device. A protective door 24 is detachably installed on the outer surface of the base 1. A storage battery is installed inside the protective door 24, which can store the electrical energy converted by the solar panel 7 inside the storage battery, facilitating the power supply for this device.

[0046] An electronic screen body 25 is installed inside each electronic screen housing 5. The electronic screen body 25 is a prior art and will not be elaborated in this application. Two transmission boxes 3 are fixedly connected to the upper surface of the lower bracket 2. Above the lower bracket 2, there is an upper bracket 4. The two ends of the upper bracket 4 are respectively fixed to the two transmission boxes 3. A cross body 15 is fixedly connected to the inner wall of the upper bracket 4. The cross body 15 can enhance the stability of the upper bracket 4. A reflective sticker 16 is fixedly connected to the middle of the cross body 15. The reflective sticker 16 can have a reflective effect to prevent pedestrians or vehicles from hitting the electronic screen housing 5 when the visibility is poor.

[0047] See Figure 10, a slider 14 is slidably connected to the outer surface of the cross body 15. The slider 14 can slide up and down on the outer surface of the cross body 15. The connecting rod 1307 is fixedly connected to the outer surface of the slider 14. An elevating protection mechanism 17 is arranged above the slider 14. The elevating protection mechanism 17 includes a protection shell 1702 fixedly connected to the inner top wall of the upper support 4. A jacking rod 1701 is fixedly connected to the upper surface of the slider 14. The jacking rod 1701 penetrates through the protection shell 1702 and is slidably connected to the protection shell 1702. An elevating seat 1703 is fixedly connected to the upper surface of the jacking rod 1701. A camera 1704 is fixedly connected to the upper surface of the elevating seat 1703. When encountering bad weather, the downward movement of the slider 14 can drive the jacking rod 1701 and the elevating seat 1703 to move downward, and then can drive the camera 1704 into the interior of the protection shell 1702, which can play a certain protective effect on the camera 1704.

[0048] Two symmetrically arranged fans 18 are installed on the upper surface of the upper support 4. The fans 18 can blow air into the space between the two electronic screen bodies 25 when the two electronic screen bodies 25 are in normal use, so as to dissipate heat from them, increase gas fluidity. Two electronic screen housings 5 are rotatably connected between the two transmission boxes 3. A sunshade 6 is arranged outside each electronic screen housing 5. The sunshade 6 can play a sunshading effect on the electronic screen body 25 during normal use. When the sunlight is relatively strong, it can prevent the sunlight from directly shining on the electronic screen body 25, causing the temperature of the electronic screen body 25 to be too high.

[0049] See Figure 3 and Figure 11 , two stabilizing mechanisms 19 are arranged on the outer surface of each sunshade 6. The stabilizing mechanism 19 includes a hinge piece 1901 rotatably connected to the outer surface of the sunshade 6. An articulated rod 1902 is articulated to the outer surface of the hinge piece 1901. A limiting block 1905 is articulated to the end of the articulated rod 1902 away from the hinge piece 1901. A slideway 1903 is formed on the outer surface of the electronic screen housing 5. The limiting block 1905 is slidably connected to the inside of the slideway 1903. A guide rod 1906 is fixedly connected to the outer surface of the limiting block 1905. The length of the guide rod 1906 is relatively short, only the section located at the upper end of the compression spring 1904, and is not fixedly connected to the bottom of the slideway 1903. A compression spring 1904 is fixedly connected to the outer surface of the limiting block 1905. The bottom end of the compression spring 1904 is fixedly connected to the inner bottom wall of the slideway 1903. Through the setting of the stabilizing mechanism 19, when the sunshade 6 rotates towards the electronic screen housing 5, the stability of the sunshade 6 during rotation can be increased, and the pressure on the transmission mechanism 8 during the rotation of the sunshade 6 can be reduced.

[0050] See Figure 8, a transmission mechanism 8 is provided between the outer shell 5 of the electronic screen and the sunshade 6. The transmission mechanism 8 includes a first gear 801 rotatably connected to the outer surface of the electronic screen outer shell 5 and a second gear 802 fixedly connected to the outer surface of the sunshade 6. The first gear 801 meshes with the second gear 802. The transmission mechanism 8 further includes a connecting piece 803. Both the first gear 801 and the second gear 802 are rotatably connected to the connecting piece 803. A first motor 806 is fixedly connected to the outer surface of the connecting piece 803. The output rotating shaft of the first motor 806 penetrates through the connecting piece 803 and is rotatably connected to the connecting piece 803. The output rotating shaft of the first motor 806 is fixedly connected to the middle rotating shaft of the first gear 801. A fixing plate 805 is fixedly connected to the outer surface of the first motor 806. A fixing rod 804 is fixedly connected to the outer surface of the fixing plate 805. One end of the fixing rod 804 away from the fixing plate 805 is fixed to the outer surface of the electronic screen outer shell 5. Through the setting of the transmission mechanism 8, when the first motor 806 is controlled to start, it can drive the first gear 801 to rotate. The rotation of the first gear 801 can drive the second gear 802 and the sunshade 6 to rotate together, and can combine the electronic screen outer shell 5 and the sunshade 6 together.

[0051] See Figure 5 , a meshing mechanism 10 is provided inside the transmission box 3. The meshing mechanism 10 includes two third gears 1001 rotatably connected to the inner wall of the transmission box 3 and two fourth gears 1002. Winding wheels 1005 are fixedly connected to the outer surfaces of the two fourth gears 1002. The middle rotating shafts of each of the two third gears 1001 penetrate through the transmission box 3 and are rotatably connected to the transmission box 3. The middle rotating shafts of the two third gears 1001 are respectively fixedly connected to the outer surfaces of the two electronic screen outer shells 5. The two third gears 1001 respectively mesh with the two fourth gears 1002. A connecting column 1004 is fixedly connected to the inner wall of the transmission box 3. A second motor 1003 is fixedly connected to the upper end of the connecting column 1004. When the second motor 1003 is controlled to start, the second motor 1003 can drive the third gear 1001 to rotate, and then can drive the fourth gear 1002 to rotate, and can make the two electronic screen outer shells 5 rotate in opposite directions. The output rotating shaft of the second motor 1003 is fixedly connected to the middle rotating shaft of the third gear 1001. Two symmetrically arranged arc-shaped grooves 1006 are formed on the outer surface of the transmission box 3. A first guide rod 1007 is slidably connected to the inside of each arc-shaped groove 1006. One ends of the two first guide rods 1007 are respectively fixedly connected to the outer surfaces of the two electronic screen outer shells 5. The settings of the arc-shaped groove 1006 and the first guide rod 1007 can increase the stability of the bottom end of the electronic screen outer shell 5 when rotating.

[0052] See Figure 9, two symmetrically arranged through holes 1008 are provided on the upper surface of the transmission case 3. Two square columns 11 are arranged outside the upper support 4. A reset mechanism 12 is arranged inside each square column 11. The reset mechanism 12 includes a lifting block 1201 slidably connected inside the square column 11. A lifting rod 1202 is fixedly connected to the upper surface of the lifting block 1201. The upper end of the lifting rod 1202 penetrates through the square column 11 and is slidably connected to the square column 11. When the lifting block 1201 slides up and down, it can drive the lifting rod 1202 to slide up and down. The upper end of the lifting rod 1202 penetrates through the upper support 4 and is slidably connected to the upper support 4. A limiting rod 1204 is fixedly connected to the bottom surface of the lifting block 1201. The bottom end of the limiting rod 1204 extends into the square column 11 and is slidably connected to the square column 11. A reset spring 1203 is fixedly connected to the bottom surface of the lifting block 1201. The reset spring 1203 is sleeved on the outer surface of the limiting rod 1204. Through the setting of the reset spring 1203, the lifting block 1201 can be reset and lifted, and then the lifting block 1201 and the lifting rod 1202 can be pushed to rise. The bottom end of the reset spring 1203 is fixedly connected to the inner wall of the square column 11. Two symmetrically arranged pull wires 1205 are fixedly connected to the bottom surface of the lifting block 1201. Each pull wire 1205 penetrates through the square column 11 and is slidably connected to the square column 11. The two pull wires 1205 respectively penetrate through the two through holes 1008 and are fixed to the surfaces of the two winding wheels 1005. When the winding wheel 1005 rotates following the fourth gear 1002, the pull wire 1205 can be wound, and then the lifting block 1201 can be pulled to descend.

[0053] See Figure 7 , a limiting mechanism 13 is arranged outside each reset mechanism 12. The limiting mechanism 13 includes a support plate 1301. The outer surface of the support plate 1301 is fixedly connected to the upper end of the lifting rod 1202. Two fixed sleeves 1302 are fixedly connected to the upper surface of the support plate 1301. A lifting shell 1304 is slidably connected inside each fixed sleeve 1302. An electrode plate three 1303 is fixedly connected to the inner bottom wall of the fixed sleeve 1302. A metal sheet 1306 and an electrode plate four 1305 are respectively fixedly connected to the upper surface and the bottom surface of the lifting shell 1304. The metal sheet 1306 is made of iron material. The electrode plate three 1303 and the electrode plate four 1305 are both electrically connected to the controller, and when the electrode plate three 1303 and the electrode plate four 1305 are in contact, the circuit can be connected, and then the second motor 1003 and the first motor 806 can be controlled to rotate forward. A connecting rod 1307 is fixedly connected to the bottom surface of the support plate 1301, which can play a role in connecting and supporting the support plate 1301.

[0054] See Figure 8, two electromagnetic adsorption mechanisms 9 are provided on the outer surface of each electronic screen housing 5. The electromagnetic adsorption mechanism 9 includes a fixed cylinder 901 fixed on the outer surface of the electronic screen housing 5. A metal conductor 902 is provided inside the fixed cylinder 901. The bottom end of the metal conductor 902 is fixedly connected to an electrode plate 905. An electrode plate 906 is slidably connected to the inner wall of the fixed cylinder 901. A wire 903 is wound around the outer surface of the metal conductor 902. Both ends of the wire 903 are electrically connected to the electronic screen body 25. When the electronic screen body 25 is turned on, the wire 903 can be energized. When the electronic screen body 25 is turned off, the wire 903 will be de-energized. A through rod 904 is fixedly connected to the middle of the metal conductor 902. The through rod 904 is fixedly connected to the inner wall of the fixed cylinder 901. When the wire 903 is energized, according to the principle of electromagnetic induction, the bottom ends of the metal conductor 902 and the electrode plate 905 can be made magnetic, the electrode plate 906 can be attracted to the electrode plate 905, and the metal sheet 1306 below the electrode plate 906 can be attracted into the fixed cylinder 901. Furthermore, the lifting shell 1304 can enter the fixed cylinder 901, thereby playing a limiting role on the electronic screen housing 5. When the electrode plate 905 contacts the electrode plate 906, the circuit can be conducted, thereby controlling the second motor 1003 and the first motor 806 to reverse.

[0055] In use, when encountering extremely bad weather, the controller first controls the main body 25 of the electronic screen to cut off the power. At this time, the wire 903 is powered off. After the wire 903 is powered off, neither its bottom end nor the electrode piece one 905 has magnetism. Due to the action of gravity, the electrode piece two 906 will descend. At this time, the metal piece 1306 and the lifting shell 1304 will also descend. At this time, the electrode piece four 1305 will contact the electrode piece three 1303, making the circuit conductive. At this time, the second motor 1003 and the first motor 806 can be controlled to rotate forward. And through the control of the controller, the sunshade 6 can be rotated to fit with the electronic screen housing 5, and the electronic screen housing 5 can be made to fit with the lower bracket 2. Furthermore, the main body 25 of the electronic screen and the solar panel 7 can be rotated to the position of the lower bracket 2, and the electronic screen housing 5 and the air deflector 23 are exposed outside, which can protect the main body 25 of the electronic screen and the solar panel 7. When the weather is good and the main body 25 of the electronic screen needs to be used, the controller first controls the main body 25 of the electronic screen to be turned on. After the main body 25 of the electronic screen is turned on and conducts electricity, the wire 903 can be controlled to be powered on. After the wire 903 is powered on, the bottom end of the metal conductor 902 and the electrode piece one 905 have magnetism, and the electrode piece two 906 can be attracted to the electrode piece one 905. At this time, the second motor 1003 and the first motor 806 can be reversed, and the main body 25 of the electronic screen can be rotated into the upper bracket 4 and kept in a vertical state. And the sunshade 6 can be rotated to a state perpendicular to the main body 25 of the electronic screen. The setting of the sunshade 6 can prevent the direct sunlight from shining on the main body 25 of the electronic screen when the sunlight is strong, causing the main body 25 of the electronic screen to be overheated. And through the setting of the solar panel 7, solar energy can be converted into electrical energy and stored in the storage battery for the use of this device. This device can rotate the main body 25 of the electronic screen and the solar panel 7 into the interior of the lower bracket 2 in case of hail or strong wind weather, and expose the electronic screen housing 5 and the air deflector 23 outside, which can play a good protective effect on the main body 25 of the electronic screen and prevent the debris carried by hail or strong wind from damaging the main body 25 of the electronic screen.

[0056] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A protective device for a public electronic screen that can adapt to complex weather conditions, comprising a base (1) and a lower bracket (2) fixed to the upper surface of the base (1), characterized in that: Two transmission boxes (3) are fixedly connected to the upper surface of the lower bracket (2); an upper bracket (4) is arranged above the lower bracket (2); two ends of the upper bracket (4) are respectively fixed to the two transmission boxes (3); two electronic screen housings (5) are rotatably connected between the two transmission boxes (3); a sunshade (6) is arranged outside each of the electronic screen housings (5); a transmission mechanism (8) is arranged between the electronic screen housing (5) and the sunshade (6); the transmission mechanism (8) comprises a first gear (801) rotatably connected to the outer surface of the electronic screen housing (5) and a second gear (802) fixedly connected to the outer surface of the sunshade (6); the first gear (801) meshes with the second gear (802); a meshing mechanism (10) is arranged inside the transmission box (3); the meshing mechanism (10) comprises two third gears (1001) and two fourth gears (1002) rotatably connected to the inner wall of the transmission box (3); the two fourth gears (1002) ) are fixedly connected to the outer surface of each third gear (1001) with a winding wheel (1005), the middle rotating shaft of each third gear (1001) passes through the transmission box (3) and is rotatably connected to the transmission box (3), the middle rotating shafts of the two third gears (1001) are respectively fixedly connected to the outer surfaces of the two electronic screen shells (5), two square columns (11) are arranged on the outside of both sides of the upper bracket (4), a reset mechanism (12) is arranged inside each square column (11), a limit mechanism (13) is arranged outside each reset mechanism (12), and two electromagnetic adsorption mechanisms (9) are arranged on the outer surface of each electronic screen shell (5), the electromagnetic adsorption mechanism (9) comprises a fixed cylinder (901) fixed to the outer surface of the electronic screen shell (5), a metal conductor (902) is arranged inside the fixed cylinder (901), an electrode sheet 1 (905) is fixedly connected to the bottom end of the metal conductor (902), and an electrode sheet 2 (906) is slidably connected to the inner wall of the fixed cylinder (901); An electronic screen body (25) is installed inside each electronic screen housing (5); The transmission mechanism (8) further comprises a connecting plate (803), the first gear (801) and the second gear (802) are both rotatably connected to the connecting plate (803), and the outer surface of the connecting plate (803) is fixedly connected to the first motor (806); A connecting column (1004) is fixedly connected to the inner wall of the transmission box (3), and a second motor (1003) is fixedly connected to the upper end of the connecting column (1004); A wire (903) is wound around the outer surface of the metal conductor (902), and both ends of the wire (903) are electrically connected to the electronic screen body (25); The limiting mechanism (13) comprises a support plate (1301), the upper surface of the support plate (1301) is fixedly connected to two fixing sleeves (1302), the interior of each fixing sleeve (1302) is slidably connected to a lifting shell (1304), the inner bottom wall of the fixing sleeve (1302) is fixedly connected to an electrode sheet three (1303), and the upper surface and bottom surface of the lifting shell (1304) are respectively fixedly connected to a metal sheet (1306) and an electrode sheet four (1305); During use, when encountering extremely bad weather, the controller first controls the electronic screen body (25) to be powered off, and at this time the wire (903) is powered off. After the wire (903) is powered off, its bottom end and the electrode sheet 1 (905) are not magnetic. Due to the effect of gravity, the electrode sheet 2 (906) will fall. At this time, the metal sheet (1306) and the lifting shell (1304) will also fall. At this time, the electrode sheet 4 (1305) will contact the electrode sheet 3 (1303), so that the circuit is turned on. At this time, the second motor (1003) and the first motor (806) can be controlled to rotate forward, and through the control of the controller, the sunshade (6) can be rotated to fit with the electronic screen shell (5), so that the electronic screen shell (5) The electronic screen body (25) is fitted with the lower bracket (2). When the weather is good and the electronic screen body (25) needs to be used, the electronic screen body (25) is first controlled to be turned on through the controller. The electronic screen body (25) turns on the conduction, and then the wire (903) can be controlled to be energized. After the wire (903) is energized, the bottom end of the metal conductor (902) and the electrode sheet 1 (905) have magnetism, so that the electrode sheet 2 (906) and the electrode sheet 1 (905) can be attracted to each other. At this time, the second motor (1003) and the first motor (806) can be reversed, and the electronic screen body (25) can be rotated to the inside of the upper bracket (4) and maintained in a vertical state, and the sunshade (6) can be rotated to a state perpendicular to the electronic screen body (25).

2. The protective device for public electronic screens that can adapt to complex weather conditions according to claim 1 is characterized by: The output rotating shaft of the first motor (806) passes through the connecting plate (803) and is rotationally connected to the connecting plate (803); the output rotating shaft of the first motor (806) is fixedly connected to the middle rotating shaft of the first gear (801); the outer surface of the first motor (806) is fixedly connected to a fixing plate (805); the outer surface of the fixing plate (805) is fixedly connected to a fixing rod (804); and one end of the fixing rod (804) away from the fixing plate (805) is fixed to the outer surface of the electronic screen housing (5).

3. The protective device for public electronic screens that can adapt to complex weather conditions according to claim 1 is characterized by: A through rod (904) is fixedly connected to the middle of the metal conductor (902), and the through rod (904) is fixedly connected to the inner wall of the fixed cylinder (901).

4. The protective device for public electronic screens that can adapt to complex weather conditions according to claim 1 is characterized by: The two third gears (1001) are respectively meshed with the two fourth gears (1002); a connecting column (1004) is fixedly connected to the inner wall of the transmission box (3); a second motor (1003) is fixedly connected to the upper end of the connecting column (1004); an output shaft of the second motor (1003) is fixedly connected to the middle shaft of the third gear (1001); two symmetrical arc grooves (1006) are provided on the outer surface of the transmission box (3); a guide rod (1007) is slidably connected to the interior of each arc groove (1006); one end of the two guide rods (1007) are respectively fixedly connected to the outer surfaces of the two electronic screen housings (5); and two symmetrical through holes (1008) are provided on the upper surface of the transmission box (3).

5. The protective device for public electronic screens that can adapt to complex weather conditions according to claim 4 is characterized by: The reset mechanism (12) comprises a lifting block (1201) slidably connected to the inside of the square column (11); a lifting rod (1202) is fixedly connected to the upper surface of the lifting block (1201); the upper end of the lifting rod (1202) passes through the square column (11) and is slidably connected to the square column (11); the upper end of the lifting rod (1202) passes through the upper bracket (4) and is slidably connected to the upper bracket (4); the bottom surface of the lifting block (1201) is fixedly connected to a limiting rod (1204); the bottom end of the limiting rod (1204) extends to the inside of the square column (11) and is slidably connected to the square column (11). The bottom surface of the lifting block (1201) is fixedly connected with a reset spring (1203), which is sleeved on the outer surface of the limit rod (1204), and the bottom end of the reset spring (1203) is fixedly connected to the inner wall of the square column (11). The bottom surface of the lifting block (1201) is fixedly connected with two symmetrical pull wires (1205), each of which passes through the square column (11) and is slidably connected to the square column (11), and the two pull wires (1205) respectively pass through the two through holes (1008) and are fixed to the surfaces of the two winding wheels (1005).

6. The protective device for public electronic screens that can adapt to complex weather conditions according to claim 5 is characterized by: The limiting mechanism (13) comprises a support plate (1301), the outer surface of the support plate (1301) being fixedly connected to the upper end of the lifting rod (1202), the upper surface of the support plate (1301) being fixedly connected to two fixing sleeves (1302), the interior of each fixing sleeve (1302) being slidably connected to a lifting shell (1304), the inner bottom wall of the fixing sleeve (1302) being fixedly connected to an electrode sheet three (1303), the upper surface and the bottom surface of the lifting shell (1304) being fixedly connected to a metal sheet (1306) and an electrode sheet four (1305), respectively, and the bottom surface of the support plate (1301) being fixedly connected to a connecting rod (1307).

7. The protective device for public electronic screens that can adapt to complex weather conditions according to claim 6 is characterized by: A cross body (15) is fixedly connected to the inner wall of the upper bracket (4), a reflective tape (16) is fixedly connected to the middle of the cross body (15), a slider (14) is slidably connected to the outer surface of the cross body (15), and the connecting rod (1307) is fixedly connected to the outer surface of the slider (14).

8. The protective device for public electronic screens that can adapt to complex weather conditions according to claim 7 is characterized by: A lifting protection mechanism (17) is arranged above the slider (14), and the lifting protection mechanism (17) comprises a protection shell (1702) fixedly connected to the inner top wall of the upper bracket (4); a lifting rod (1701) is fixedly connected to the upper surface of the slider (14); the lifting rod (1701) passes through the protection shell (1702) and is slidably connected to the protection shell (1702); a lifting seat (1703) is fixedly connected to the top of the lifting rod (1701); a camera (1704) is fixedly connected to the upper surface of the lifting seat (1703); and two symmetrical fans (18) are installed on the upper surface of the upper bracket (4).

9. The protective device for public electronic screens that can adapt to complex weather conditions according to claim 1 is characterized by: The outer surface of each sun visor (6) is provided with two stabilizing mechanisms (19), the stabilizing mechanisms (19) comprising a hinged plate (1901) rotatably connected to the outer surface of the sun visor (6), the outer surface of the hinged plate (1901) being hinged with a hinged rod (1902), one end of the hinged rod (1902) away from the hinged plate (1901) being hinged with a limit block (1905), the outer surface of the electronic screen housing (5) being provided with a slideway (1903), the limit block (1905) being slidably connected to the inside of the slideway (1903), the outer surface of the limit block (1905) being fixedly connected with a guide rod (1906), the outer surface of the limit block (1905) being fixedly connected with an extrusion spring (1904), the bottom end of the extrusion spring (1904) being fixedly connected to the inner bottom wall of the slideway (1903).

10. The protective device for public electronic screens that can adapt to complex weather conditions according to claim 1 is characterized by: A handrail (21) is arranged above the base (1), and the two ends of the handrail (21) are fixedly connected to the lower bracket (2) and the upper bracket (4) respectively. A slide groove (22) is provided on the outer surface of the handrail (21). A guide column (20) is fixedly connected to the outer surface of the electronic screen housing (5), and the guide column (20) is slidably connected to the inside of the slide groove (22). The outer surface of each electronic screen housing (5) is fixedly connected to a wind guide plate (23), and the outer surface of each sunshade (6) is fixedly connected to a solar panel (7). A protective door (24) is detachably installed on the outer surface of the base (1).

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