Public electronic screen protection device capable of adapting to complex weather

Abstract

The invention relates to the technical field of public electronic screens, in particular to a public electronic screen protection device capable of adapting to complex weather. Comprising a base and a lower support fixed to the upper surface of the base, and a controller is installed in the base. Through the cooperative design of the electronic screen shell, the sun shield, a transmission mechanism, an electromagnetic adsorption mechanism, a meshing mechanism, a reset mechanism and a limiting mechanism, the sun shield can be rotated to be attached to the electronic screen shell by controlling a second motor and a first motor to rotate forwards in extreme weather such as hail or strong wind; the electronic screen shell is attached to the lower support, then the electronic screen body and the solar panel can be rotated to the position of the lower support, the electronic screen shell and the air deflector are exposed outside, the electronic screen body and the solar panel can be protected, the situation that the electronic screen body is smashed by heavy sundries carried by hail or strong wind is avoided, and the service life of the electronic screen is prolonged. And the safety of the electronic screen body in severe weather is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of public electronic screens, in particular to a protective device for public electronic screens which 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 up in outdoor venues such as the roofs of major buildings, in front of commercial areas, and on the roadsides. 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. It is an internationally leading high-tech product and has been widely used in various places.

[0003] After searching, a patent with announcement number CN221040424U discloses an outdoor billboard support and protection device, which relates to the technical field of protection devices and includes a base, support rods are fixedly installed on both sides of the upper end of the base, and slide grooves are opened at the upper ends of the two support rods, wherein lifting columns are slidably installed in the slide grooves 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. The new device uses the connecting rectangular rod, two lifting columns and a base set at the rear end of the advertising electronic screen, so that the advertising electronic screen in the device can be adjusted in height, thereby being able to adapt to the use of the advertising electronic screen in different scenes, and the advertising electronic screen can also adjust the angle by rotating the first screw to drive the movement of the extrusion plate, thereby facilitating the adjustment of the viewing angle of the advertising electronic screen according to different scenes.

[0004] Although the outdoor electronic screen in the above patent can be used in different scenarios and adjust the angle, thereby facilitating the adjustment of the viewing angle of the advertising electronic screen according to different scenarios, the protection effect of the electronic screen is low when used outdoors, and it is difficult to use in some complex weather conditions. In some areas with more extreme weather, such as hail or strong winds, the heavy debris carried by hail or strong winds can easily damage the electronic screen, which will not only greatly increase the maintenance cost, but also affect normal use. Summary of the invention

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

[0006] The present invention provides the following technical solutions: a protective device for a public electronic screen that can adapt to complex weather, comprising a base and a lower bracket fixed to the upper surface of the base, the upper surface of the lower bracket being fixedly connected to two transmission boxes, an upper bracket is arranged above the lower bracket, both ends of the upper bracket are respectively fixed to the two transmission boxes, two electronic screen shells are rotatably connected between the two transmission boxes, a sun visor is arranged on the outside of each electronic screen shell, a transmission mechanism is arranged between the electronic screen shell and the sun visor, the transmission mechanism comprises a first gear rotatably connected to the outer surface of the electronic screen shell and a second gear fixedly connected to the outer surface of the sun visor, the first gear is meshed with the second gear, a meshing mechanism is arranged inside the transmission box, the meshing mechanism comprises a first gear rotatably connected to the outer surface of the electronic screen shell and a second gear fixedly connected to the outer surface of the sun visor, the first gear is meshed with the second gear, and a meshing mechanism is arranged inside the transmission box, the meshing mechanism comprises a first gear rotatably connected to the outer surface of the electronic screen shell There are two third gears and two fourth gears on the inner wall of the transmission box, and the outer surfaces of the two fourth gears are fixedly connected with winding wheels. The middle rotating shaft of each third gear passes through the transmission box and is rotatably connected to the transmission box. The middle rotating shafts of the two third gears are respectively fixedly connected to the outer surfaces of the two electronic screen shells. Two square columns are arranged on the outside of both sides of the upper bracket, and a reset mechanism is arranged inside each of the square columns. A limiting mechanism is arranged outside each of the reset mechanisms. Two electromagnetic adsorption mechanisms are arranged on the outer surface of each of the electronic screen shells, and the electromagnetic adsorption mechanism includes a fixed cylinder fixed on the outer surface of the electronic screen shell, a metal conductor is arranged inside the fixed cylinder, and the bottom end of the metal conductor is fixedly connected with electrode sheet 1, and the inner wall of the fixed cylinder is slidably connected with electrode sheet 2.

[0007] In some embodiments, the transmission mechanism also includes a connecting plate, the first gear and the second gear are both rotatably connected to the connecting plate, the outer surface of the connecting plate is fixedly connected to a first motor, the output shaft of the first motor passes through the connecting plate and is rotatably connected to the connecting plate, the output shaft of the first motor is fixedly connected to the middle shaft of the first gear, the outer surface of the first motor is fixedly connected to a fixing plate, the outer surface of the fixing plate is fixedly connected to a fixing rod, and the end of the fixing rod away from the fixing plate is fixed 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, and 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 the two fourth gears, a connecting column is fixedly connected to the inner wall of the transmission box, a second motor is fixedly connected to the upper end of the connecting column, the output shaft of the second motor is fixedly connected to the middle shaft of the third gear, and two symmetrical arc grooves are provided on the outer surface of the transmission box, each arc groove is slidably connected to the inside of a guide rod 1, one end of the two guide rods are respectively fixedly connected to the outer surfaces of the two electronic screen casings, and two symmetrical through holes are provided on the upper surface of the transmission box.

[0010] In some embodiments, the reset mechanism includes a lifting block slidably connected to the inside of the square column, the upper surface of the lifting block is fixedly connected to a lifting rod, the upper end of the lifting rod passes through the square column and is slidably connected to the square column, the upper end of the lifting rod passes through an upper bracket and is slidably connected to the upper bracket; the bottom surface of the lifting block is fixedly connected to a limiting rod, the bottom end of the limiting rod extends to the inside of the square column and is slidably connected to the square column, the bottom surface of the lifting block is fixedly connected to 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 to the inner wall of the square column, the bottom surface of the lifting block is fixedly connected to two symmetrical pull wires, each of the pull wires passes through the square column and is slidably connected to the square column, and the two pull wires respectively pass through two through holes and are fixed to the surfaces of two winding wheels.

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

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

[0013] In some embodiments, a lifting protection mechanism is provided above the slider, and the lifting protection mechanism includes a protective shell fixedly connected to the inner top wall of the upper bracket, a lifting rod is fixedly connected to the upper surface of the slider, the lifting rod passes through the protective shell and is slidably connected to the protective shell, the top of the lifting rod is fixedly connected to a lifting seat, the upper surface of the lifting seat is fixedly connected to a camera, and two symmetrical fans are installed on the upper surface of the upper bracket.

[0014] In some embodiments, the outer surface of each sun visor is provided with two stabilizing mechanisms, and the stabilizing mechanisms include a hinged plate rotatably connected to the outer surface of the sun visor, the outer surface of the hinged plate is hinged with a hinged rod, and the end of the hinged rod away from the hinged plate is hinged to a limit block, and the outer surface of the electronic screen shell is provided with a slide, the limit block is slidably connected to the inside of the slide, the outer surface of the limit block is fixedly connected to a guide rod, the outer surface of the limit block is fixedly connected to an extrusion spring, and the bottom end of the extrusion spring is fixedly connected to the inner bottom wall of the slide.

[0015] In some embodiments, a handrail is provided above the base, and both ends of the handrail are fixedly connected to the lower bracket and the upper bracket respectively. A slide groove is provided on the outer surface of the handrail. The outer surface of the electronic screen shell is fixedly connected to a guide column, and the guide column is slidably connected to the inside of the slide groove. The outer surface of each electronic screen shell is fixedly connected to a wind guide plate, and the outer surface of each sun visor is fixedly connected to a solar panel. A protective door is detachably installed on the outer surface of the base, and an electronic screen body is installed inside each electronic screen shell.

[0016] Compared with the prior art, the present invention has the following beneficial effects: Through the coordinated design of the electronic screen housing, the sun visor, the transmission mechanism, the electromagnetic adsorption mechanism, the meshing mechanism, the reset mechanism and the limit mechanism, the present application can, in extreme weather such as hail or strong winds, control the second motor and the first motor to rotate forward, so that the sun visor can be rotated to fit with the electronic screen housing, and the electronic screen housing can be fit with the lower bracket, and then the electronic screen body and the solar panel can be rotated to the position of the lower bracket, exposing the electronic screen housing and the wind guide plate to the outside, which can protect the electronic screen body and the solar panel and will not cause the electronic screen body to be damaged by heavy debris carried by hail or strong winds, thereby greatly improving the safety of the electronic screen body in severe weather.

[0017] Through the coordinated design of the lifting rod, protective shell, lifting seat and camera, the present application can retract the camera into the inside of the protective shell after the electronic screen body is closed, and can provide a certain degree of protection for the camera in extreme weather.

[0018] The present application, through the coordinated design of hinged plates, hinged rods, slides, extrusion springs, limit blocks and guide rods, can greatly increase the stability of the sun visor when it rotates toward the electronic screen housing, which can greatly reduce the pressure of the transmission mechanism during transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the protective device for public electronic screens that can adapt to complex weather conditions according to the present invention; Figure 2 It is a partial three-dimensional structural schematic diagram of the protective device for public electronic screens that can adapt to complex weather conditions according to the present invention; Figure 3 It is a schematic diagram of the external three-dimensional structure of the electronic screen housing and the sun visor of the protective device for public electronic screens that can adapt to complex weather conditions of the present invention; Figure 4 This is a schematic diagram of the structure of the lower bracket and the transmission box of the protective device for public electronic screens that can adapt to complex weather conditions according to the present invention; Figure 5 It is a schematic diagram of the internal three-dimensional structure of the transmission box of the protective device for public electronic screens that can adapt to complex weather conditions of the present invention; Figure 6 This is a schematic diagram of the internal three-dimensional structure of the upper bracket of the protective device for public electronic screens that can adapt to complex weather conditions according to the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the limiting mechanism of the protective device for public electronic screens that can adapt to complex weather conditions according to the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the transmission mechanism and electromagnetic adsorption mechanism of the protective device for public electronic screens that can adapt to complex weather conditions of the present invention; Fig. 9 It is a schematic diagram of the internal three-dimensional structure of a square column of the protective device for public electronic screens that can adapt to complex weather conditions of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the lifting protection mechanism of the protection device for public electronic screens that can adapt to complex weather conditions according to the present invention; Fig.11 The present invention is a protective device for public electronic screens that can adapt to complex weather Figure 3 A schematic diagram of the structure enlargement in the middle; Numbers in the figure: 1, base; 2, lower bracket; 3, transmission box; 4, upper bracket; 5, electronic screen housing; 6, sun visor; 7, solar panel; 8. Transmission mechanism; 801. First gear; 802. Second gear; 803. Connecting piece; 804. Fixing rod; 805. Fixing plate; 806. First motor; 9. Electromagnetic adsorption mechanism; 901. Fixed cylinder; 902. Metal conductor; 903. Wire; 904. Through rod; 905. Electrode sheet 1; 906. Electrode sheet 2; 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; 11. Square column; 12. reset mechanism; 1201. lifting block; 1202. lifting rod; 1203. reset spring; 1204. limit rod; 1205. pull wire; 13. Limiting mechanism; 1301. Support plate; 1302. Fixing sleeve; 1303. Electrode sheet three; 1304. Lifting shell; 1305. Electrode sheet four; 1306. Metal sheet; 1307. Connecting rod; 14. Slider; 15. Cross body; 16. Reflective tape; 17. Lifting protection mechanism; 1701. Lifting rod; 1702. Protective shell; 1703. Lifting seat; 1704. Camera; 18. Fan; 19. Stabilizing mechanism; 1901. Articulated sheet; 1902. Articulated rod; 1903. Slideway; 1904. Extrusion spring; 1905. Limiting block; 1906. Guide rod; 20. Guide column; 21. Handrail; 22. Slide groove; 23. Air guide plate; 24. Protective door; 25. Electronic screen body. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 and Figure 2 The present invention provides a protective device for public electronic screens that can adapt to complex weather, including a base 1 and a lower bracket 2 fixed on the upper surface of the base 1, 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, the handrail 21 is semicircular, and when in use, it is convenient for people to hold the handrail 21 to watch the electronic screen body 25, a slide groove 22 is provided on the outer surface of the handrail 21, and a guide column 20 is fixedly connected to the outer surface of the electronic screen shell 5, and the guide column 20 is slidably connected to the inside of the slide groove 22, and the guide column 20 slides inside the slide groove 22, so that the stability of the electronic screen shell 5 during rotation can be enhanced, and each electronic screen shell 5 is fixedly connected to the outer surface of the wind guide plate 23, and the wind guide plate 23 can be made of a lighter material, such as plastic or colloid material. The present application uses a hard plastic material, and its sloped shape can reduce wind resistance when the electronic screen shell 5 is closed.

[0022] The outer surface of each sun visor 6 is fixedly connected to a solar panel 7. The solar panel 7 is a prior art that can convert solar energy into electrical energy for use in this device. A protective door 24 is detachably installed on the outer surface of the base 1. A battery is installed inside the protective door 24. The electrical energy converted by the solar panel 7 can be stored inside the battery, thereby conveniently powering this device.

[0023] An electronic screen body 25 is installed inside each electronic screen shell 5. The electronic screen body 25 is a prior art and will not be described in detail in this application. 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. Both 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 part of the cross body 15. The reflective sticker 16 can have a reflective effect to prevent pedestrians or vehicles from colliding with the electronic screen shell 5 when visibility is poor.

[0024] See also Fig.10 The outer surface of the cross body 15 is slidably connected with a slider 14, and 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. A lifting protection mechanism 17 is arranged above the slider 14. The lifting protection mechanism 17 includes a protective shell 1702 fixedly connected to the inner top wall of the upper bracket 4. The upper surface of the slider 14 is fixedly connected with a lifting rod 1701, and the lifting rod 1701 penetrates the protective shell 1702 and is slidably connected with the protective shell 1702. The upper surface of the lifting rod 1701 is fixedly connected with a lifting seat 1703, and the upper surface of the lifting seat 1703 is fixedly connected with a camera 1704. When encountering bad weather, the downward movement of the slider 14 can drive the lifting rod 1701 and the lifting seat 1703 to move downward, and then can drive the camera 1704 to enter the interior of the protective shell 1702, which can provide a certain protective effect for the camera 1704.

[0025] Two symmetrical fans 18 are installed on the upper surface of the upper bracket 4. The fan 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 and increase gas fluidity. Two electronic screen shells 5 are rotatably connected between the two transmission boxes 3. A sun visor 6 is provided on the outside of each electronic screen shell 5. The sun visor 6 can provide a sunshade effect for the electronic screen body 25 during normal use. When the sunlight is strong, it can prevent the sunlight from directly hitting the electronic screen body 25, causing the temperature of the electronic screen body 25 to be too high.

[0026] See also Figure 3 and Fig.11The outer surface of each sun visor 6 is provided with two stabilizing mechanisms 19, the stabilizing mechanism 19 includes a hinged piece 1901 rotatably connected to the outer surface of the sun visor 6, the outer surface of the hinged piece 1901 is hinged with a hinged rod 1902, and one end of the hinged rod 1902 away from the hinged piece 1901 is hinged with a limit block 1905, and the outer surface of the electronic screen housing 5 is provided with a slide 1903, the limit block 1905 is slidably connected to the inside of the slide 1903, and the outer surface of the limit block 1905 is fixedly connected with a guide rod 19 06. The guide rod 1906 is relatively short and is only located at a section of the upper end of the extrusion spring 1904. It is not fixed to the bottom of the slide 1903. The outer surface of the limit block 1905 is fixedly connected with the extrusion spring 1904. The bottom end of the extrusion spring 1904 is fixedly connected to the inner bottom wall of the slide 1903. Through the setting of the stabilizing mechanism 19, when the sun visor 6 rotates toward the direction of the electronic screen housing 5, the stability of the sun visor 6 during rotation can be increased, and the pressure of the transmission mechanism 8 when the sun visor 6 rotates can be reduced.

[0027] See also Figure 8 A transmission mechanism 8 is arranged between the electronic screen housing 5 and the sun visor 6. The transmission mechanism 8 includes 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 sun visor 6. The first gear 801 is meshed with the second gear 802. The transmission mechanism 8 also includes a connecting piece 803. The first gear 801 and the second gear 802 are both 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 shaft of the first motor 806 passes through the connecting piece 803 and is rotatably connected to the connecting piece 803. The output shaft of a motor 806 is fixedly connected to the middle shaft of the first gear 801, and the outer surface of the first motor 806 is fixedly connected to a fixing plate 805, and the outer surface of the fixing plate 805 is fixedly connected to a fixing rod 804. The end of the fixing rod 804 away from the fixing plate 805 is fixed to the outer surface of the electronic screen housing 5. Through the setting of the transmission mechanism 8, when the first motor 806 is controlled to be turned on, it can drive the first gear 801 to rotate. The rotation of the first gear 801 can drive the second gear 802 and the sun visor 6 to rotate together, so that the electronic screen housing 5 and the sun visor 6 can be combined together.

[0028] See also Figure 5The transmission box 3 is provided with a meshing mechanism 10 inside, the meshing mechanism 10 includes two third gears 1001 and two fourth gears 1002 rotatably connected to the inner wall of the transmission box 3, the outer surfaces of the two fourth gears 1002 are fixedly connected 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 housings 5, the two third gears 1001 are respectively meshed with the two fourth gears 1002, the inner wall of the transmission box 3 is fixedly connected with a connecting column 1004, the upper end of the connecting column 1004 is fixedly connected with a second motor 1003, when After the second motor 1003 is controlled to be turned on, the second motor 1003 can drive the third gear 1001 to rotate, and then drive the fourth gear 1002 to rotate, and can make the two electronic screen housings 5 ​​rotate in opposite directions. The output shaft of the second motor 1003 is fixedly connected to the middle shaft of the third gear 1001, and the outer surface of the transmission box 3 is provided with two symmetrical arc grooves 1006, and the interior of each arc groove 1006 is slidably connected with a guide rod 1007, and one end of the two guide rods 1007 is fixedly connected to the outer surfaces of the two electronic screen housings 5 ​​respectively. The setting of the arc groove 1006 and the guide rod 1007 can increase the stability of the bottom end of the electronic screen housing 5 when it rotates.

[0029] See also Fig. 9, two symmetrical through holes 1008 are provided on the upper surface of the transmission box 3, two square columns 11 are arranged on the outside of the upper bracket 4, and a reset mechanism 12 is arranged inside each square column 11, and the reset mechanism 12 includes a lifting block 1201 slidably connected to the inside of the square column 11, and a lifting rod 1202 is fixedly connected to the upper surface of the lifting block 1201, and the upper end of the lifting rod 1202 penetrates 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, and the upper end of the lifting rod 1202 penetrates 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 the limit rod 1204, and the bottom end of the limit rod 1204 extends to the inside of the square column 11 and is slidably connected to the square column 11. The lifting block 1201 The bottom surface of the lifting block 1201 is fixedly connected with a reset spring 1203, and the reset spring 1203 is sleeved on the outer surface of the limit rod 1204. Through the setting of the reset spring 1203, the lifting block 1201 can be reset and lifted, thereby pushing the lifting block 1201 and the lifting rod 1202 to rise. The bottom end of the reset spring 1203 is fixedly connected to the inner wall of the square column 11, and the bottom surface of the lifting block 1201 is fixedly connected with two symmetrical pull wires 1205, each pull wire 1205 passes through the square column 11 and is slidably connected to the square column 11, 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, and when the winding wheel 1005 rotates with the fourth gear 1002, the pull wire 1205 can be wound, thereby pulling the lifting block 1201 down.

[0030] See also Figure 7 , a limiting mechanism 13 is arranged on the outside of each reset mechanism 12, and 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, and the upper surface of the support plate 1301 is fixedly connected to two fixing sleeves 1302, and the interior of each fixing sleeve 1302 is slidably connected to a lifting shell 1304, and 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, and the metal sheet 1306 is made of iron material. The electrode sheet three 1303 and the electrode sheet four 1305 are both electrically connected to the controller, and when the electrode sheet three 1303 and the electrode sheet four 1305 are in contact, the circuit can be connected, thereby controlling the second motor 1003 and the first motor 806 to rotate forward, and the bottom surface of the support plate 1301 is fixedly connected to a connecting rod 1307, which can play a connecting and supporting role for the support plate 1301.

[0031] See also Figure 8, the outer surface of each electronic screen shell 5 is provided with two electromagnetic adsorption mechanisms 9, the electromagnetic adsorption mechanism 9 includes a fixed cylinder 901 fixed on the outer surface of the electronic screen shell 5, a metal conductor 902 is provided inside the fixed cylinder 901, the bottom end of the metal conductor 902 is fixedly connected with an electrode sheet 1 905, the inner wall of the fixed cylinder 901 is slidably connected with an electrode sheet 2 906, the outer surface of the metal conductor 902 is wrapped with a wire 903, 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 closed, the wire 903 will be de-energized, the middle part of the metal conductor 902 is fixedly connected with 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 electromagnetism, the metal conductor 902 and the bottom end of the electrode sheet 1 905 can be made magnetic, so that the electrode sheet 2 906 can be attracted to the electrode sheet 1 905, and the metal sheet 1306 under the electrode sheet 2 906 can be attracted to the inside of the fixed cylinder 901, so that the lifting shell 1304 can enter the inside of the fixed cylinder 901, so as to limit the electronic screen shell 5. When the electrode sheet 1 905 contacts the electrode sheet 2 906, the circuit can be turned on, thereby controlling the second motor 1003 and the first motor 806 to reverse.

[0032] During use, when encountering extremely bad weather, the controller first controls the electronic screen body 25 to be powered off, at this time the wire 903 is powered off, after the wire 903 is powered off, its bottom end and the electrode piece 1 905 are not magnetic, due to the effect of gravity, the electrode piece 2 906 will drop, at this time, the metal sheet 1306 and the lifting shell 1304 will also drop, at this time the electrode piece 4 1305 will contact the electrode piece 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 sun visor 6 can be rotated to fit with the electronic screen housing 5, so that the electronic screen housing 5 fits with the lower bracket 2, and then the electronic screen body 25 and the solar panel 7 can be rotated to the position of the lower bracket 2, exposing the electronic screen housing 5 and the wind guide plate 23 to the outside, which can protect the electronic screen body 25 and the solar panel 7, and 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 by the controller, and 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 piece 1 905 are magnetic, and the electrode piece 2 906 can be attracted to the electrode piece 1 905. 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 sun visor 6 can be rotated to a state perpendicular to the electronic screen body 25. The setting of the sun visor 6 can prevent the direct sunlight from shining on the electronic screen body 25 when the sunlight is strong, causing the electronic screen body 25 to be heated. The solar energy can be converted into electrical energy through the setting of the solar panel 7, and stored in the battery for use by the device. The device can rotate the electronic screen body 25 and the solar panel 7 to the inside of the lower bracket 2 in hail or strong wind weather, and expose the electronic screen housing 5 and the wind guide plate 23 to the outside, which can provide good protection for the electronic screen body 25 and prevent the electronic screen body 25 from being damaged by debris carried by hail or strong wind.

[0033] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

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 rotationally 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).

2. The protective device for public electronic screens that can adapt to complex weather conditions according to claim 1 is characterized by: 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), a first motor (806) is fixedly connected to the outer surface of the connecting plate (803), an output shaft of the first motor (806) passes through the connecting plate (803) and is rotatably connected to the connecting plate (803), the output shaft of the first motor (806) is fixedly connected to the middle shaft of the first gear (801), a fixing plate (805) is fixedly connected to the outer surface of the fixing plate (805), a fixing rod (804) is fixedly connected to the outer surface of the 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 wire (903) is wound around the outer surface of the metal conductor (902), 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), and an electronic screen body (25) is installed inside each electronic screen housing (5).

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