LED display screen external protection connecting assembly for advertising

Abstract

The invention discloses an LED display screen external protection connecting assembly for advertisement putting, and the assembly comprises a protection assembly which comprises a protection frame and a pedestal, and the top of the protection frame is movably provided with a glass cover; the storage mechanism is used for realizing storage and protection of the LED display screen; and the dismounting and mounting mechanism is used for realizing quick dismounting and mounting of the LED display screen. The connecting rods connected to the outer sides of the first gears drive the first gears on the lifting plates to synchronously run, at the moment, the upper connecting rod and the lower connecting rod generate shear type expansion movement, then the LED display screen can be lifted to display advertisements, meanwhile, the glass cover can move along with lifting of the LED display screen, effective protection is formed, and the service life of the LED display screen is prolonged. When the LED display screen needs to be transferred and conveyed, only the electric push rod needs to be reversely driven, the upper connecting rod and the lower connecting rod drive the LED display screen to be stored in the protection frame, and therefore the problem that the LED display screen is prone to being damaged and polluted in the transportation and storage process is effectively solved, the service life of the display screen is greatly prolonged, and the display effect of the display screen is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of advertising equipment, and in particular to an external protective connection component of an LED display screen for advertising. Background Art

[0002] As an advertising medium, LED displays, with their advantages of high brightness, high definition, vibrant colors, and dynamic display, have become a vital means of modern advertising. They attract a wide audience and enhance advertising effectiveness. Suitable for a variety of scenarios, including commercial districts, transportation hubs, and large-scale events, they provide advertisers with an efficient and flexible promotional method.

[0003] Currently, although LED displays are widely used in the field of advertising, there are also prominent problems: first, the display screens are directly exposed to the external environment and lack effective protection measures, making them susceptible to scratches and contamination, which affects the display effect and service life; second, the display screen design usually lacks convenient storage and movement functions, resulting in inconvenience during transportation and storage, and often requires the collaboration of multiple people to complete the transportation, increasing labor costs; third, during the installation and maintenance process, LED displays mostly rely on bolt fixation, which is not only inefficient but also cumbersome to disassemble, bringing many inconveniences to subsequent maintenance. Summary of the Invention

[0004] One purpose of the present invention is to propose an external protective connection assembly for an LED display screen for advertising. The present invention aims to solve the problems raised in the above background. At present, although LED display screens are widely used in the field of advertising, the problems that exist are also more prominent: first, the display screens are directly exposed to the external environment and lack effective protection measures. They are easily scratched and contaminated, affecting the display effect and service life; second, the display screen design usually lacks convenient storage and movement functions, which leads to inconvenience in transportation and storage, and often requires the cooperation of multiple people to complete the transportation, increasing labor costs; third, during the installation and maintenance process, LED display screens mostly rely on bolts for fixing. This method is not only inefficient, but also cumbersome to disassemble, which brings many inconveniences to later maintenance.

[0005] An external protective connection assembly for an LED display screen for advertising according to an embodiment of the present invention includes:

[0006] A protective assembly, comprising a protective frame and a base, wherein a glass cover is movably provided on the top of the protective frame;

[0007] A storage mechanism is installed inside the protection frame of the protection assembly and is used to store and protect the LED display screen. The storage mechanism includes a fixed plate fixed to the lower end of the protection frame and a lifting plate that is raised and lowered by pushing the assembly.

[0008] A disassembly mechanism is installed on one side of the lifting plate in the storage mechanism, and is used to realize the rapid disassembly and assembly of the LED display screen. The disassembly mechanism includes a box body fixed to one side of the lifting plate and a lock fixed to the top of the LED display screen. A locking assembly for locking the lock is installed inside the box body, and a disassembly assembly for disassembling the lock is installed inside the box body;

[0009] The cleaning mechanism is installed on the side of the fixed plate of the storage mechanism close to the LED display screen, and is used to clean the dust on the surface of the LED display screen;

[0010] The movable positioning mechanism is installed inside the base of the protective component and is used to realize the movement and positioning of the device, wherein the movable positioning mechanism includes a movable plate movably arranged inside the base, a drill bit is rotatably arranged at the four corners of the movable plate through a rotating shaft, a threaded barrel is fixedly arranged on the top of the movable plate, a sloped support leg is symmetrically rotatably arranged on one side of the interior of the movable plate, a movable wheel is symmetrically fixed on one side of the bottom of the sloped support leg, a slider is rotatably arranged on the top of the sloped support leg, and the slider is movably arranged inside the base, and the movable plate, drill bit and sloped support leg are all lifted and rotated by a driving component.

[0011] Preferably, a limit plate for limiting the moving distance of the glass cover is fixedly provided on the top of the protection frame.

[0012] Preferably, the pushing assembly includes a supporting slide, which is movably arranged on one side of the fixed plate and the lifting plate through a guide plate. Racks are fixedly arranged on both sides of the supporting slide, and a first gear is meshed and transmitted on the outer side of the rack. A connecting rod is fixedly arranged on the other end of the first gear. The upper and lower connecting rods are rotatably arranged, and an electric push rod is connected between the guide plate and the fixed plate at the lower end.

[0013] Preferably, the locking assembly includes a locking block movably arranged inside the box body, a spring is fixedly arranged on one side of the locking block, and a reset block is fixedly arranged at the bottom of the lock buckle near the back of the lock buckle.

[0014] Preferably, the spring is fixed inside the box body through a plug.

[0015] Preferably, the disassembly assembly includes an unlocking lever movably arranged inside the box body, the unlocking lever is adapted to the reset block, and a handle is fixedly provided on the top of the unlocking lever.

[0016] Preferably, the cleaning mechanism includes a support frame fixed to the fixed block close to the side of the first gear, and a second gear meshing with the outside of the first gear. The other end of the second gear is fixed with a first bevel gear, and the outside of the first bevel gear is meshing with a second bevel gear. A cleaning brush is fixed between the two second bevel gears.

[0017] Preferably, the second gear is rotatably disposed inside the support frame, the cleaning brush is rotatably disposed inside the support frame, and the cleaning brush is attached to the surface of the LED display screen.

[0018] Preferably, the driving assembly includes a motor fixedly mounted on the top of the base, a screw is fixedly mounted on the output end of the motor, the movable plate is moved by threaded rotation between the threaded barrel and the screw, a first transmission assembly is connected between the rotating shaft and the screw, and a second transmission assembly is connected between the four rotating shafts.

[0019] Preferably, the first transmission assembly and the second transmission assembly are both composed of a pulley and a transmission belt, and the pulley in the first transmission mechanism is threadedly arranged on the outside of the screw and rotatably arranged on the top of the threaded barrel.

[0020] The beneficial effects of the present invention are:

[0021] The present invention effectively avoids the problems of scratches, pollution and transportation damage caused by direct exposure of the display screen to the external environment by providing a protective component and a storage mechanism. When in use, the effective combination of the protective component and the storage mechanism forms a complete protective shell through the protective frame and the glass cover, effectively preventing the damage of the display screen to the external dust, rain, scratches, etc. When in use, the electric push rod in the pushing component is used to push the guide block to move. At this time, the guide block on the fixed plate will drive the first gear located at the top of the rack to engage in transmission, thereby causing the connecting rod connected to the outside of the first gear to drive the first gear on the lifting plate to operate synchronously. At this time, the upper and lower connecting rods produce a scissor-like expansion movement, thereby enabling the LED display screen to be lifted for displaying advertisements. At the same time, the glass cover will also move with the lifting of the LED display screen to form effective protection. When it is necessary to transport and transfer, it is only necessary to drive the electric push rod in the reverse direction so that the upper and lower connecting rods drive the LED display screen to be stored in the protective frame. Therefore, the problem that the LED display screen is susceptible to damage and pollution during transportation and storage is effectively avoided, and the service life and display effect of the display screen are greatly improved.

[0022] The present invention effectively avoids the problems of low assembly and disassembly efficiency and cumbersome maintenance caused by traditional bolt fixing by providing a disassembly and assembly mechanism. The lock block, spring and reset block cooperate to realize quick locking and unlocking of the lock catch. When maintenance is required, it is only necessary to lift the handle on the top of the unlocking lever so that the unlocking lever pushes the reset block to move inward, thereby storing the lock block inside the box body, and the lock catch can be easily removed, thereby quickly disassembling and maintaining the display screen. When installing, it is only necessary to snap the lock catch installed on the top of the display screen into the inside of the box body, and the spring pushes the lock block to lock the lock catch, so that quick installation can be achieved. Therefore, the mechanism effectively avoids the problems of cumbersome assembly and disassembly and low efficiency of traditional bolt fixing methods, greatly shortens maintenance time and reduces maintenance costs.

[0023] The present invention effectively avoids the problems of difficulty in movement and unstable outdoor positioning by providing a mobile positioning mechanism. When transportation is required, the motor is used to drive the screw rod to rotate in the reverse direction so that the mobile plate moves toward the inside of the base. At the same time, since the sloped legs are movably arranged between the slider and the base, they can drive the sloped leg seats connected to the mobile plate to rotate in a circular manner, so that the mobile wheels are supported on the ground, and the device can be transported to a desired position. After the position movement is completed, the motor drives the screw rod forward so that the mobile plate moves toward the ground. Since the screw rod and the four rotating shafts are linked by the first transmission assembly and the second transmission assembly, the motor drives the drill bit synchronously under the drive, and after the drill bit contacts the ground, it will drill into the soil, which can improve the grip of the device and thus improve the stability of the device during use.

[0024] The present invention effectively avoids the problems of blurred display and high manual cleaning cost caused by dust on the screen surface by setting up a cleaning mechanism. During operation, when the electric push rod drives the first gear to rotate, power is transmitted to the first bevel gear through the second gear, driving the second bevel gear to drive the cleaning brush, so that dust can be cleaned from the surface of the LED display screen, thereby improving the clarity of the LED display screen during advertising display. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of one side of the external protective connection assembly of an LED display screen for advertising proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the glass cover structure of the external protective connection assembly of an LED display screen for advertising proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the internal structure of an external protective connection assembly for an LED display screen for advertising proposed by the present invention;

[0029] Figure 4 This is a schematic diagram of the sloped leg structure of an external protective connection assembly for an LED display screen for advertising proposed by the present invention;

[0030] Figure 5 This is a schematic diagram of the screw structure of an external protective connection assembly for an LED display screen for advertising proposed by the present invention;

[0031] Figure 6 This is a schematic diagram of the electric push rod structure of the external protection connection assembly of the LED display screen for advertising proposed by the present invention;

[0032] Figure 7 This is a schematic diagram of the supporting slide structure of an external protective connection assembly for an LED display screen for advertising proposed by the present invention;

[0033] Figure 8 This is a schematic diagram of the lock structure of the external protective connection assembly of an LED display screen for advertising proposed by the present invention;

[0034] Figure: 1. Protective assembly; 101. Protective frame; 102. Glass cover; 103. Limiting plate; 104. Base; 2. Storage mechanism; 201. Fixing plate; 202. Lifting plate; 203. Supporting slide; 204. Rack; 205. Guide plate; 206. First gear; 207. Connecting rod; 208. Electric push rod; 3. Disassembly mechanism; 301. Box body; 302. Plug; 303. Spring; 304. Lock block; 305. Reset block; 306. Lock; 307. LED Display screen; 308, unlocking lever; 309, handle; 4, cleaning mechanism; 401, support frame; 402, second gear; 403, first bevel gear; 404, second bevel gear; 405, cleaning brush; 5, mobile positioning mechanism; 501, motor; 502, screw; 503, threaded barrel; 504, moving plate; 505, rotating shaft; 506, drill bit; 507, first transmission assembly; 508, second transmission assembly; 509, sloped support leg; 510, moving wheel; 511, slider. DETAILED DESCRIPTION

[0035] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0036] refer to Figure 1-8 , an external protective connection component for an LED display screen for advertising, comprising:

[0037] The protective assembly 1 includes a protective frame 101 and a base 104. A glass cover 102 is movably provided on the top of the protective frame 101. The protective frame and the glass cover form a complete protective shell, effectively preventing external dust, rain, scratches, etc. from damaging the display screen.

[0038] The storage mechanism 2 is installed inside the protective frame 101 in the protective component 1, and is used to realize the storage and protection of the LED display screen 307. The storage mechanism 2 includes a fixed plate 201 fixed to the lower end of the protective frame 101 and a lifting plate 202 that is lifted and lowered by a pushing component. The pushing component includes a supporting slide 203, and the supporting slide 203 is movably arranged on one side of the fixed plate 201 and the lifting plate 202 through a guide plate 205. Racks 204 are fixedly provided on both sides of the supporting slide 203. The outer side of the rack 204 is meshed with a first gear 206. The other end of the first gear 206 is fixedly provided with a connecting rod 207. A rotating device is provided between the upper and lower connecting rods 207. An electric push rod 208 is connected between the lower guide plate 205 and the fixed plate 201. The electric push rod in the pushing assembly is used to push the guide block to move. At this time, the guide block on the fixed plate will drive the first gear located at the top of the rack to engage the transmission, thereby causing the connecting rod connected to the outside of the first gear to drive the first gear on the lifting plate to operate synchronously. At this time, the upper and lower connecting rods produce a scissor-like expansion movement, thereby enabling the LED display screen to be lifted for displaying advertisements. At the same time, the glass cover will also move with the lifting of the LED display screen to form effective protection. When transportation is required, it is only necessary to drive the electric push rod in the reverse direction so that the upper and lower connecting rods drive the LED display screen to be stored inside the protective frame.

[0039] The disassembly and assembly mechanism 3 is installed on one side of the lifting plate 202 in the storage mechanism 2, and is used to realize the rapid disassembly and assembly of the LED display screen 307, wherein the disassembly and assembly mechanism 3 includes a box body 301 fixed to one side of the lifting plate 202, and a lock buckle 306 fixed to the top of the LED display screen 307, a locking assembly for locking the lock buckle 306 is installed inside the box body 301, and the locking assembly includes a locking block 304 movably arranged inside the box body 301, a spring 303 is fixedly provided on one side of the lock block 304, a reset block 305 is fixedly provided at the bottom of the lock buckle 306 near the back of the lock buckle 306, a disassembly assembly for disassembling the lock buckle 306 is installed inside the box body 301, and the disassembly assembly includes an unlocking lever 308 movably arranged inside the box body 301, the unlocking lever 308 is adapted to the reset block 305, and a handle 309 is fixedly provided on the top of the unlocking lever 308;

[0040] The cleaning mechanism 4 is installed on the side of the fixed plate 201 in the storage mechanism 2 close to the LED display screen 307, and is used to clean the dust on the surface of the LED display screen 307. The cleaning mechanism 4 includes a support frame 401 fixed to the side of the fixed block close to the first gear 206, and a second gear 402 meshing with the outer side of the first gear 206. The other end of the second gear 402 is fixedly provided with a first bevel gear 403, and the outer side of the first bevel gear 403 is meshing with the second bevel gear 404. A cleaning brush 405 is fixed between the two second bevel gears 404. When the electric push rod drives the first gear to rotate, the power is transmitted to the first bevel gear through the second gear, driving the second bevel gear to drive the cleaning brush, so that the dust on the surface of the LED display screen can be cleaned, thereby improving the clarity of the LED display screen during the advertising display.

[0041] The movable positioning mechanism 5 is installed inside the base 104 in the protective component 1, and is used to realize the movement and positioning of the device, wherein the movable positioning mechanism 5 includes a movable plate 504 movably arranged inside the base 104, and a drill bit 506 is rotatably arranged at the four corners of the movable plate 504 through a rotating shaft 505. A threaded cylinder 503 is fixedly arranged on the top of the movable plate 504, and a sloped support leg 509 is symmetrically rotatably arranged on one side of the inner part of the movable plate 504. A moving wheel 510 is symmetrically fixed on one side of the bottom of the sloped support leg 509, and a slider 511 is rotatably arranged on the top of the sloped support leg 509. The slider 511 is movably arranged inside the base 104. The movable plate 504, the drill bit 506 and the sloped support leg 509 are all lifted and rotated by a driving component, and the driving component includes a motor 501 fixedly arranged on the top of the base 104, and a screw 502 is fixedly arranged on the output end of the motor 501. The plate 504 is moved by the threaded rotation between the threaded barrel 503 and the screw 502. A first transmission assembly 507 is connected between the rotating shaft 505 and the screw 502, and a second transmission assembly 508 is connected between the four rotating shafts 505. When transportation is required, the motor is used to drive the screw in reverse to rotate, so that the movable plate moves toward the inside of the base. At the same time, since the sloped support legs are movably arranged between the slider and the base, they can drive the rotatable connection and the sloped support leg seat inside the movable plate to rotate circumferentially, so that the movable wheel is supported on the ground, and then the device can be transported to the desired position. After the position movement is completed, the screw is driven forward by the motor to move the movable plate toward the ground. Since the screw and the four rotating shafts are linked by the first transmission assembly and the second transmission assembly, the motor drives the drill bit synchronously under the drive. After the drill bit contacts the ground, it will drill into the soil, which can improve the grip of the device.

[0042] Example 1: A limit plate 103 is fixed on the top of the protective frame 101 to limit the movable distance of the glass cover 102, which can facilitate the disassembly and assembly and lifting and lowering of the glass cover. The spring 303 is fixed inside the box body 301 through the plug 302, which can improve the stability during locking.

[0043] Example 2: The second gear 402 is rotatably set inside the support frame 401, and the cleaning brush 405 is rotatably set inside the support frame 401. The cleaning brush 405 is attached to the surface of the LED display screen 307, so that the dust on the surface of the LED display screen can be cleaned, thereby improving the clarity of the LED display screen during advertising display.

[0044] Example 3: The first transmission assembly 507 and the second transmission assembly 508 are both composed of a pulley and a transmission belt. The pulley thread in the first transmission mechanism is set on the outside of the screw 502 and is rotatably set on the top of the threaded barrel 503. It can also rotate while the movable plate is raised and lowered, thereby facilitating the drill bit to drill into the soil.

[0045] Working principle: The protective component 1 forms a protective shell through the protective frame 101 and the glass cover 102 to prevent external invasion. The limit plate 103 limits the movable distance of the glass cover to facilitate disassembly and lifting. In the storage mechanism 2, the fixed plate 201 and the lifting plate 202 realize the lifting and lowering of the LED display screen 307 through the pushing assembly composed of the supporting slide 203, the rack 204, the first gear 206 and the connecting rod 207. The electric push rod 208 drives the guide block to move, drives the gear and the connecting rod to operate, and realizes the lifting movement. At the same time, the glass cover moves with the protection of the display screen. The locking assembly includes a box body 301, a lock buckle 306, a locking block 304, a spring 303 and a reset block 305 to ensure that the display screen is stably locked. In the cleaning mechanism 4, the second gear 402, the cleaning brush 405, the first cone Gear 403 and the second bevel gear 404 form a transmission system, and the electric push rod drives the cleaning brush to clean the surface of the display screen to improve clarity. In the mobile positioning mechanism 5, the mobile plate 504, the rotating shaft 505, the drill bit 506, the threaded barrel 503, the sloped support leg 509 and the mobile wheel 510 form a mobile system. The motor 501 drives the mobile plate to lift and rotate through the screw 502, the first transmission component 507 and the second transmission component 508 to achieve movement and positioning of the device. The drill bit drills into the soil to improve grip. The transmission component composed of the pulley and the transmission belt ensures the lifting and rotation functions of the mobile plate, which is convenient for the drill bit to drill the soil. In summary, the various components work together to achieve protection, storage, disassembly, cleaning and mobile positioning of the display screen, ensuring the advertising display effect and convenient use of the equipment.

[0046] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An external protective connection assembly for an LED display screen for advertising, characterized in that: include: A protective assembly (1) comprises a protective frame (101) and a base (104), wherein a glass cover (102) is movably provided on the top of the protective frame (101); A storage mechanism (2) is installed inside the protection frame (101) in the protection component (1) and is used to store and protect the LED display screen (307), wherein the storage mechanism (2) includes a fixing plate (201) fixed to the lower end of the protection frame (101) and a lifting plate (202) that is lifted and lowered by pushing the component; The disassembly mechanism (3) is installed on one side of the lifting plate (202) in the storage mechanism (2) and is used to realize the rapid disassembly and assembly of the LED display screen (307), wherein the disassembly mechanism (3) includes a box body (301) fixed on one side of the lifting plate (202) and a lock catch (306) fixed on the top of the LED display screen (307), a locking component for locking the lock catch (306) is installed inside the box body (301), and a disassembly component for disassembling the lock catch (306) is installed inside the box body (301); A cleaning mechanism (4) is installed on a side of the fixing plate (201) in the storage mechanism (2) close to the LED display screen (307) and is used to clean dust on the surface of the LED display screen (307); A mobile positioning mechanism (5) is installed inside the base (104) in the protective component (1) and is used to realize the movement and positioning of the device, wherein the mobile positioning mechanism (5) includes a mobile plate (504) movably arranged inside the base (104), a drill bit (506) is rotatably arranged at the four corners of the mobile plate (504) through a rotating shaft (505), a threaded barrel (503) is fixedly arranged on the top of the mobile plate (504), a sloped support leg (509) is symmetrically rotatably arranged on one side of the inside of the mobile plate (504), a moving wheel (510) is symmetrically fixedly arranged on one side of the bottom of the sloped support leg (509), a slider (511) is rotatably arranged on the top of the sloped support leg (509), and the slider (511) is movably arranged inside the base (104), and the mobile plate (504), the drill bit (506) and the sloped support leg (509) are all lifted and rotated by a driving component.

2. The external protective connection assembly for an LED display screen for advertising according to claim 1, characterized in that: A limiting plate (103) for limiting the moving distance of the glass cover (102) is fixedly provided on the top of the protection frame (101).

3. The external protective connection assembly for an LED display screen for advertising according to claim 1, characterized in that: The pushing assembly includes a supporting slide (203), and the supporting slide (203) is movably arranged on one side of the fixed plate (201) and the lifting plate (202) through a guide plate (205). Racks (204) are fixedly arranged on both sides of the supporting slide (203), and a first gear (206) is meshed and driven on the outer side of the rack (204). A connecting rod (207) is fixedly arranged on the other end of the first gear (206). The upper and lower connecting rods (207) are rotatably arranged, and an electric push rod (208) is connected between the lower guide plate (205) and the fixed plate (201).

4. The external protective connection assembly for an LED display screen for advertising according to claim 1, characterized in that: The locking assembly comprises a locking block (304) movably arranged inside the box body (301), a spring (303) is fixedly arranged on one side of the locking block (304), and a reset block (305) is fixedly arranged at the bottom of the lock buckle (306) near the back of the lock buckle (306).

5. The external protective connection assembly for an LED display screen for advertising according to claim 4, characterized in that: The spring (303) is fixedly arranged inside the box body (301) through the plug (302).

6. The external protective connection assembly for an LED display screen for advertising according to claim 1, characterized in that: The disassembly assembly comprises an unlocking rod (308) movably arranged inside the box body (301), the unlocking rod (308) is adapted to the reset block (305), and a handle (309) is fixedly arranged on the top of the unlocking rod (308).

7. The external protective connection assembly for an LED display screen for advertising according to claim 1, characterized in that: The cleaning mechanism (4) comprises a support frame (401) fixed to a side of a fixed block close to the first gear (206), and a second gear (402) meshing and transmitting on the outside of the first gear (206); a first bevel gear (403) is fixedly provided at the other end of the second gear (402); a second bevel gear (404) is meshing and transmitting on the outside of the first bevel gear (403); and a cleaning brush (405) is fixedly provided between the two second bevel gears (404).

8. The external protective connection assembly for an LED display screen for advertising according to claim 7, characterized in that: The second gear (402) is rotatably disposed inside the support frame (401), the cleaning brush (405) is rotatably disposed inside the support frame (401), and the cleaning brush (405) is attached to the surface of the LED display screen (307).

9. The external protective connection assembly for an LED display screen for advertising according to claim 1, characterized in that: The driving assembly includes a motor (501) fixedly arranged on the top of the base (104), a screw (502) fixedly arranged at the output end of the motor (501), the movable plate (504) is moved by the threaded rotation between the threaded barrel (503) and the screw (502), a first transmission assembly (507) is connected between the rotating shaft (505) and the screw (502), and a second transmission assembly (508) is connected between the four rotating shafts (505).

10. The external protective connection assembly for an LED display screen for advertising according to claim 9, characterized in that: The first transmission assembly (507) and the second transmission assembly (508) are both composed of a pulley and a transmission belt. The pulley thread in the first transmission mechanism is set on the outside of the screw (502) and is rotatably set on the top of the threaded barrel (503).

Images