Light-emitting diode (LED) outdoor display screen lightning arrester

Abstract

The utility model belongs to the technical field of outdoor display screens, and particularly relates to an LED outdoor display screen lightning arrester which comprises a display screen shell. A notch is formed in the side wall of the top of the display screen shell; by arranging the supporting rod, the lightning arrester, the down lead and the grounding body, thunder and lightning can be guided to the ground safely, so that the display screen shell and the waterproof display screen are protected against lightning stroke, high-pressure water flow can be sprayed into thunder and lightning clouds by arranging the fixing cylinder, the water spraying pipe and the water inlet pipe, charges in the thunder and lightning clouds are neutralized, and the anti-thunder effect is achieved. Lightning is dissolved in a prototype state, a lightning rod and a water spraying device are combined, the lightning guiding effect of the lightning rod and the charge neutralizing effect of the water spraying device are comprehensively utilized, dual protection is formed, the lightning rod can attract the lightning and guide the lightning to approach the ground firstly, and the water spraying device neutralizes charges in lightning cloud by spraying high-pressure water flow; therefore, the threat of thunder and lightning to the waterproof display screen can be further reduced, and the lightning protection capability of the waterproof display screen is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of outdoor display screens, in particular to a lightning protection device for an LED outdoor display screen. Background Art

[0002] An LED display, also known as a screen or monitor, is a device or appliance used to display images and colors. Its working principle is to combine optical and electronic technologies to display images by controlling the degree of light transmission.

[0003] In existing technologies, LED displays can not only be used on portable electrical appliances such as mobile phones and computers, but can also be installed outdoors. For example, waterproof displays can be installed in outdoor squares to attract the attention of passers-by and vehicles, thereby increasing brand exposure and recognition.

[0004] During long-term use and observation, it was found that when using waterproof display screens in outdoor squares, if there is thunderstorm weather, the high voltage and instantaneous impact current generated by lightning can directly damage the power supply system of the waterproof display screen, making the waterproof display screen unable to work normally.

[0005] To this end, the utility model provides a lightning protection device for an LED outdoor display screen. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve at least one problem raised in the background technology, a lightning protection device for an LED outdoor display screen is proposed.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a lightning protection device for an outdoor LED display screen, comprising a display screen housing; a notch is provided on the top side wall of the display screen housing; a lifting assembly is provided on the inner side wall at the bottom of the notch; the lifting assembly is fixedly connected to a support rod; the support rod slides inside the notch; a lightning receptor is fixedly connected to the end of the support rod; the lightning receptor is arranged above the display screen housing; a down conductor is fixedly connected to the bottom side wall of the lightning receptor; the down conductor slides inside the support rod; the other end of the down conductor is fixedly connected to a grounding body; a fixed cylinder is fixedly connected to the middle of the side wall of the support rod; a water spray pipe is fixedly connected to the top side wall of the fixed cylinder; the water spray pipes are multiple and are regularly arranged in a circular array at the top of the fixed cylinder; a water inlet pipe is fixedly connected to the middle of the side wall of the fixed cylinder; the fixed cylinder, water spray pipe and water inlet pipe are all hollow And connected; a storage groove is provided in the middle of the side wall of the display screen housing; a waterproof component is slidably connected to the top of the display screen housing; this step can lead lightning to itself and safely into the underground by setting support rods, lightning receptors, down conductors and grounding bodies, thereby protecting the display screen housing and the waterproof display screen from lightning strikes, and setting a fixed cylinder, a water spray pipe and a water inlet pipe can spray high-pressure water into the lightning cloud to neutralize the charge in the lightning cloud and resolve the lightning in its embryonic state. By combining the lightning rod with the water spray device, the lightning-attracting effect of the lightning rod and the charge-neutralizing effect of the water spray device are comprehensively utilized to form double protection. The lightning rod will first attract lightning and guide it close to the ground, while the water spray device neutralizes the charge in the lightning cloud by spraying high-pressure water, thereby further reducing the threat of lightning to the waterproof display screen and improving the lightning protection capability of the waterproof display screen.

[0008] Preferably, the waterproof component includes a groove; the groove is opened in the side wall of the display screen housing; the inner side wall of the groove is rotatably connected to a two-way threaded rod; the end of the two-way threaded rod is fixedly connected to a motor; the middle part of the side wall of the two-way threaded rod is slidably connected to a movable ring; the movable rings are a pair and are symmetrically arranged on both sides of the storage slot; the middle part of the side wall of the movable ring is fixedly connected to a connecting rod; the other end of the connecting rod is fixedly connected to a water baffle; the top side wall of the display screen housing is opened with a groove; the grooves are a pair and are arranged corresponding to the water baffle; the water baffle slides inside the groove; through this step, liquid water such as rainwater and snow water can be directly blocked from invading the groove, ensuring that the equipment in the groove is not corroded by rainwater, thereby protecting the waterproof display screen from damage in a humid environment, and this setting can also effectively avoid the problem of electrical failure and leakage of the waterproof display screen caused by a humid environment, reducing the risk of safety accidents such as fire due to leakage.

[0009] Preferably, the lifting assembly includes an electric push rod; the electric push rods are a pair and symmetrically arranged on both sides of the support rod; the output end of the electric push rod is fixedly connected to a push-pull rod; the other end of the push-pull rod is fixedly connected to a fixing ring; the fixing ring is fixed to the support rod; this step sets the electric push rod, push-pull rod and fixing ring, which can attract and guide lightning by adjusting the height of the lightning rod and safely lead it into the underground, thereby protecting the buildings, waterproof display screens and personnel around the lightning rod from direct attacks by lightning, and in non-thunderstorm weather, the liftable lightning rod can lower its height, reduce the impact of wind resistance on the display screen casing, help reduce the stress on the display screen casing in strong wind weather, improve the stability of the display screen casing, and thus ensure the safety of the waterproof display screen.

[0010] Preferably, the top side wall of the display screen housing is fixed with a first fixing block; the first fixing blocks are a pair and are symmetrically arranged on both sides of the support rod; the middle part of the side wall of the first fixing block is rotatably connected to a support plate; the other end of the support plate is rotatably connected to a second fixing block; the second fixing block is fixed to the fixing tube; a torsion spring is provided between the support plate and the second fixing block; this step supports the support rod by arranging the first fixing block, the support plate and the second fixing block, prevents the support rod from tipping over or deflecting due to wind, vibration and other factors, ensures that the support rod can remain vertical and stable in thunderstorm weather, and at the same time, the stable support structure helps to maintain the verticality and position accuracy of the support rod, thereby more accurately guiding lightning to hit the lightning rod and lead it into the ground.

[0011] Preferably, a waterproof cloth is fixed to the middle of the side wall of the slot; the waterproof cloth is a pair and symmetrically arranged on both sides of the support rod; the other side of the waterproof cloth is fixed to the fixing ring; the waterproof cloth is made of elastic material; this step is carried out by arranging an elastic waterproof cloth on the top of the slot, which can directly cover the top of the slot, further preventing rainwater from intruding into the slot and protecting the equipment inside the slot from damage in the humid environment.

[0012] Preferably, a water guide plate is fixedly connected to the middle part of the side wall of the water baffle; the water guide plate is arranged as an inclined structure; this step, by setting the inclined water guide plate, can make the water falling on the top of the display screen housing slide down along the water guide plate, preventing moisture from accumulating on the top of the display screen housing, thereby reducing the possibility of moisture entering the inside of the slot, and protecting the safety of the display screen housing and the waterproof display screen.

[0013] Preferably, a sealing ring is fixed to the middle of the side wall of the water baffle; the sealing ring and the support rod are correspondingly arranged; the sealing ring is made of elastic material; by setting the sealing ring in this step, an effective waterproof barrier can be formed at the junction of the water baffle and the support rod, and the sealing ring can fit tightly to the edge of the support rod to prevent rainwater from penetrating into the groove, thereby further protecting the safety of the display screen housing and the waterproof display screen.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The lightning protection device for an LED outdoor display screen described in the present invention can guide lightning toward itself and safely lead it into the ground by arranging support rods, lightning receptors, down conductors and grounding bodies, thereby protecting the display screen housing and the waterproof display screen from lightning strikes. The arrangement of a fixing cylinder, a water spray pipe and a water inlet pipe can spray high-pressure water into the lightning cloud to neutralize the charge in the lightning cloud and dissolve the lightning in its embryonic state. By combining a lightning rod with a water spray device, the lightning-attracting effect of the lightning rod and the charge-neutralizing effect of the water spray device are comprehensively utilized to form double protection. The lightning rod will first attract lightning and guide it close to the ground, while the water spray device will neutralize the charge in the lightning cloud by spraying high-pressure water, thereby further reducing the threat of lightning to the waterproof display screen and improving the lightning protection capability of the waterproof display screen.

[0016] 2. The LED outdoor display lightning protection device described in the present invention, by setting an electric push rod, a push-pull rod and a fixed ring, can attract and guide lightning by adjusting the height of the lightning rod, and safely lead it into the underground, thereby protecting the buildings, waterproof display screens and personnel around the lightning rod from direct attacks by lightning. In addition, in non-thunderstorm weather, the liftable lightning rod can lower its height, reducing the impact of wind resistance on the display screen casing, helping to reduce the stress on the display screen casing in strong wind weather, and improving the stability of the display screen casing, thereby ensuring the safety of the waterproof display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 This is a cross-sectional view of the display screen housing of the present invention;

[0020] Figure 3 This is a schematic diagram of the matching structure of the bidirectional threaded rod and the water baffle in the utility model;

[0021] Figure 4 It is a schematic diagram of the matching structure of the support plate and the fixing cylinder in the utility model.

[0022] Legend:

[0023] 1. Display screen housing; 11. Notch; 12. Support rod; 13. Lightning receptor; 14. Down conductor; 15. Grounding body; 16. Fixing tube; 17. Spray pipe; 18. Water inlet pipe; 19. Storage trough; 2. Groove; 21. Bidirectional threaded rod; 22. Motor; 23. Movable ring; 24. Connecting rod; 25. Water baffle; 26. Channel; 3. Electric push rod; 31. Push-pull rod; 32. Fixing ring; 4. First fixing block; 41. Support plate; 42. Second fixing block; 5. Waterproof cloth; 6. Water guide plate; 7. Sealing ring. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] Specific examples are given below.

[0026] like Figures 1 to 4As shown, a lightning protection device for an outdoor LED display screen according to an embodiment of the present invention comprises a display screen housing 1; a notch 11 is provided on the top side wall of the display screen housing 1; a lifting assembly is provided on the bottom inner side wall of the notch 11; the lifting assembly is fixedly connected to a support rod 12; the support rod 12 slides inside the notch 11; a lightning receptor 13 is fixedly connected to the end of the support rod 12; the lightning receptor 13 is arranged above the display screen housing 1; a down conductor 14 is fixedly connected to the bottom side wall of the lightning receptor 13; the down conductor 14 slides inside the support rod 12; the other end of the down conductor 14 is fixedly connected to a grounding body 15; a fixing cylinder 16 is fixedly connected to the middle of the side wall of the support rod 12; The top side wall of the fixed cylinder 16 is fixedly connected with a water spray pipe 17; the water spray pipes 17 are multiple and are regularly arranged in a circular array on the top of the fixed cylinder 16; the middle part of the side wall of the fixed cylinder 16 is fixedly connected with a water inlet pipe 18; the fixed cylinder 16, the water spray pipe 17 and the water inlet pipe 18 are all hollow and connected; a storage groove 19 is opened in the middle of the side wall of the display screen housing 1; the top of the display screen housing 1 is slidably connected with a waterproof component; when working, the staff installs the display screen housing 1 on the outdoor square, and then embeds the waterproof display screen into the storage groove 19 opened on the side wall of the display screen housing 1, and then buries the grounding body 15 underground. When encountering thunderstorm weather, the staff starts the lifting group The support rod 12 is extended from the inside of the slot 11. At this time, the lightning receptor 13 will move with the down conductor 14 to the top of the display housing 1. When lightning strikes the waterproof display, the lightning will be guided to the grounding body 15 by the lightning receptor 13, so that the lightning enters the ground. At the same time, the staff will connect the water inlet pipe 18 to the water pump. The water pump will draw the water in the water tank into the fixed cylinder 16 through the water inlet pipe 18 and spray it into the air from multiple water spray pipes 17 to neutralize the charge in the lightning cloud above the waterproof display. At this time, the waterproof component will be blocked on the top of the waterproof display to prevent rainwater from entering the slot 11. This step is achieved by setting the support rod 12, the lightning receptor 13, the down conductor 14 and the grounding body 15. , which can lead lightning towards itself and safely lead it into the ground, thereby protecting the display housing 1 and the waterproof display from lightning strikes. The setting of the fixed cylinder 16, the water spray pipe 17 and the water inlet pipe 18 can spray high-pressure water into the lightning cloud to neutralize the charge in the lightning cloud and dissolve the lightning in its embryonic state. By combining the lightning rod with the water spray device, the lightning-attracting function of the lightning rod and the charge-neutralizing function of the water spray device are comprehensively utilized to form a double protection. The lightning rod will first attract lightning and guide it close to the ground, while the water spray device will neutralize the charge in the lightning cloud by spraying high-pressure water, thereby further reducing the threat of lightning to the waterproof display and improving the lightning protection capability of the waterproof display.

[0027] like Figure 1 、 Figure 3 and Figure 4As shown, the waterproof component includes a groove 2; the groove 2 is opened in the side wall of the display housing 1; the inner wall of the groove 2 is rotatably connected to a two-way threaded rod 21; the end of the two-way threaded rod 21 is fixedly connected to a motor 22; the middle of the side wall of the two-way threaded rod 21 is slidably connected to a movable ring 23; the movable rings 23 are a pair and are symmetrically arranged on both sides of the storage slot 19; the middle of the side wall of the movable ring 23 is fixedly connected to a connecting rod 24; the other end of the connecting rod 24 is fixedly connected to a water baffle 25; the top side wall of the display housing 1 is opened with a groove 26; the groove 26 is a pair and is arranged corresponding to the water baffle 25; the water baffle 25 slides inside the groove 26; when working, when the support rod 12 is extended from the slot 11 under the action of the lifting assembly , the staff starts the motor 22, and the motor 22 drives the bidirectional threaded rod 21 to rotate inside the groove 2, so that a pair of movable rings 23 move toward each other inside the bidirectional threaded rod 21. At this time, the connecting rod 24 fixed to the movable ring 23 will move synchronously, so that a pair of water baffles 25 move along the groove 26, and then close together at the top of the display screen housing 1 and cover the top of the slot 11. This step can directly prevent liquid water such as rainwater and snow water from invading the slot 11, ensuring that the equipment in the slot 11 is not corroded by rainwater, thereby protecting the waterproof display screen from damage in a humid environment. In addition, this setting can effectively avoid electrical failures and leakage problems of the waterproof display screen caused by a humid environment, reducing the risk of safety accidents such as fire due to leakage.

[0028] like Figure 2 and Figure 3 As shown, the lifting assembly includes an electric push rod 3; the electric push rod 3 is a pair and symmetrically arranged on both sides of the support rod 12; the output end of the electric push rod 3 is fixedly connected to a push-pull rod 31; the other end of the push-pull rod 31 is fixedly connected to a fixing ring 32; the fixing ring 32 is fixed to the support rod 12; when working, the staff starts a pair of electric push rods 3, and the electric push rod 3 moves up and down with the push-pull rod 31, so that the push-pull rod 31 moves up and down with the fixing ring 32, so that the support rod 12 fixed with the fixing ring 32 moves up and down synchronously, and at this time, the lightning receptor 13 will be displayed under the drive of the support rod 12 The top of the display housing 1 is raised and lowered. In this step, an electric push rod 3, a push-pull rod 31 and a fixed ring 32 are set. By adjusting the height of the lightning rod, lightning can be attracted and guided and safely led into the underground, thereby protecting the buildings, waterproof display screens and personnel around the lightning rod from direct attacks by lightning. In addition, in non-thunderstorm weather, the liftable lightning rod can lower its height to reduce the impact of wind resistance on the display housing 1, which helps to reduce the stress on the display housing 1 in strong wind weather and improve the stability of the display housing 1, thereby ensuring the safety of the waterproof display screen.

[0029] like Figure 1 、 Figure 3 and Figure 4As shown, the top side wall of the display housing 1 is fixed with a first fixing block 4; the first fixing blocks 4 are a pair and are symmetrically arranged on both sides of the support rod 12; the middle part of the side wall of the first fixing block 4 is rotatably connected to a support plate 41; the other end of the support plate 41 is rotatably connected to a second fixing block 42; the second fixing block 42 is fixed to the fixing cylinder 16; a torsion spring is provided between the support plate 41 and the second fixing block 42; during operation, when a pair of water baffles 25 are closed together, the support plate 41 will rotate on the first fixing block 4, and the support plate 41 will also rotate on the second fixing block 4. The support plate 41 rotates on the fixed block 42. Because a torsion spring is provided between the support plate 41 and the second fixed block 42, the support plate 41 will be supported on both sides of the support rod 12. This step can support the support rod 12 by setting the first fixed block 4, the support plate 41 and the second fixed block 42 to prevent the support rod 12 from tipping over or shifting due to factors such as wind and vibration, ensuring that the support rod 12 can remain vertical and stable in thunderstorm weather. At the same time, the stable support structure helps to maintain the verticality and position accuracy of the support rod 12, thereby more accurately guiding lightning to hit the lightning rod and lead it into the ground.

[0030] like Figure 4 As shown, a waterproof cloth 5 is fixed to the middle of the side wall of the slot 11; the waterproof cloth 5 is a pair and is symmetrically arranged on both sides of the support rod 12; the other side of the waterproof cloth 5 is fixed to the fixing ring 32; the waterproof cloth 5 is made of elastic material; during operation, when the support rod 12 moves up and down, the waterproof cloth 5 fixed to the top of the slot 11 will be deformed and covered on the top of the slot 11. This step is achieved by arranging an elastic waterproof cloth 5 on the top of the slot 11, which can directly cover the top of the slot 11, further preventing rainwater from intruding into the slot 11 and protecting the equipment inside the slot 11 from damage in a humid environment.

[0031] like Figure 1 and Figure 4 As shown, a water guide plate 6 is fixedly connected to the middle part of the side wall of the water baffle 25; the water guide plate 6 is arranged as an inclined structure; in this step, by setting the inclined water guide plate 6, the water flow falling on the top of the display housing 1 can slide down along the water guide plate 6, preventing moisture from accumulating on the top of the display housing 1, thereby reducing the possibility of moisture entering the inside of the slot 11, and protecting the safety of the display housing 1 and the waterproof display.

[0032] like Figure 1 and Figure 3 As shown, a sealing ring 7 is fixed to the middle part of the side wall of the water retaining plate 25; the sealing ring 7 and the support rod 12 are correspondingly arranged; the sealing ring 7 is made of elastic material; by setting the sealing ring 7 in this step, an effective waterproof barrier can be formed at the junction of the water retaining plate 25 and the support rod 12, and the sealing ring 7 can fit tightly to the edge of the support rod 12 to prevent rainwater from penetrating into the groove 11, thereby further protecting the safety of the display housing 1 and the waterproof display.

[0033] Working principle: The staff installs the display housing 1 on the outdoor square, then embeds the waterproof display into the storage groove 19 opened on the side wall of the display housing 1, and then buries the grounding body 15 underground. When encountering thunderstorm weather, the staff starts the lifting assembly to extend the support rod 12 from the inside of the groove 11. At this time, the lightning receptor 13 will move with the down conductor 14 to the top of the display housing 1. When lightning strikes the waterproof display, the lightning will be guided by the lightning receptor 13 to the grounding body 15, so that the lightning enters the ground. At the same time, the staff Connect the water inlet pipe 18 to the water pump, and the water pump will draw the water in the water tank into the fixed cylinder 16 through the water inlet pipe 18 and spray it into the air from multiple water spray pipes 17 to neutralize the charge in the thundercloud above the waterproof display screen. At this time, the waterproof component will block the top of the waterproof display screen to prevent rainwater from entering the slot 11. When the support rod 12 is extended from the slot 11 under the action of the lifting component, the staff will start the motor 22, and the motor 22 drives the bidirectional threaded rod 21 to rotate inside the groove 2, so that a pair of movable rings 23 are on the bidirectional threaded rod 21. The inner parts move toward each other, and the connecting rod 24 fixed with the movable ring 23 will move synchronously at this time, so that a pair of water baffles 25 move along the groove 26, and then close together at the top of the display housing 1 and cover the top of the notch 11, and then start a pair of electric push rods 3, which move up and down with the push-pull rod 31, so that the push-pull rod 31 moves up and down with the fixed ring 32, so that the support rod 12 fixed with the fixed ring 32 moves up and down synchronously. At this time, the lightning receptor 13 moves on the top of the display housing 1 under the drive of the support rod 12. The support plate 41 is raised and lowered. When a pair of water retaining plates 25 are closed together, the support plate 41 will rotate on the first fixed block 4. At the same time, the support plate 41 will also rotate on the second fixed block 42. Because a torsion spring is provided between the support plate 41 and the second fixed block 42, the support plate 41 will be supported on both sides of the support rod 12. When the support rod 12 moves up and down, the waterproof cloth 5 fixed to the top of the slot 11 will be deformed and covered on the top of the slot 11 to prevent rainwater from intruding into the slot 11 and protect the equipment inside the slot 11 from damage in a humid environment.

[0034] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A lightning protection device for an outdoor LED display screen, comprising a display screen housing (1); characterized in that: The top side wall of the display screen housing (1) is provided with a notch (11); the bottom inner side wall of the notch (11) is provided with a lifting assembly; the lifting assembly is fixedly connected to a support rod (12); the support rod (12) slides inside the notch (11); a lightning receptor (13) is fixedly connected to the end of the support rod (12); the lightning receptor (13) is arranged above the display screen housing (1); a down conductor (14) is fixedly connected to the bottom side wall of the lightning receptor (13); the down conductor (14) slides inside the support rod (12); the other end of the down conductor (14) is fixedly connected to a grounding body ( 15); a fixed cylinder (16) is fixedly connected to the middle of the side wall of the support rod (12); a water spray pipe (17) is fixedly connected to the top side wall of the fixed cylinder (16); the water spray pipes (17) are multiple and are regularly arranged in a circular array at the top of the fixed cylinder (16); a water inlet pipe (18) is fixedly connected to the middle of the side wall of the fixed cylinder (16); the fixed cylinder (16), the water spray pipe (17) and the water inlet pipe (18) are all hollow and connected; a storage groove (19) is opened in the middle of the side wall of the display screen housing (1); a waterproof component is slidably connected to the top of the display screen housing (1).

2. The LED outdoor display lightning protection device according to claim 1, characterized in that: The waterproof component comprises a groove (2); the groove (2) is provided on the side wall of the display housing (1); a bidirectional threaded rod (21) is rotatably connected to the inner side wall of the groove (2); a motor (22) is fixedly connected to the end of the bidirectional threaded rod (21); a movable ring (23) is slidably connected to the middle of the side wall of the bidirectional threaded rod (21); the movable rings (23) are a pair and are symmetrically arranged on both sides of the storage groove (19); a connecting rod (24) is fixedly connected to the middle of the side wall of the movable ring (23); the other end of the connecting rod (24) is fixedly connected to a water baffle (25); a groove (26) is provided on the top side wall of the display housing (1); the grooves (26) are a pair and are arranged corresponding to the water baffle (25); the water baffle (25) slides inside the groove (26).

3. The LED outdoor display lightning protection device according to claim 1, characterized in that: The lifting assembly comprises an electric push rod (3); the electric push rod (3) is a pair and is symmetrically arranged on both sides of the support rod (12); the output end of the electric push rod (3) is fixedly connected to a push-pull rod (31); the other end of the push-pull rod (31) is fixedly connected to a fixing ring (32); the fixing ring (32) is fixedly connected to the support rod (12).

4. The LED outdoor display lightning protection device according to claim 2, characterized in that: The top side wall of the display screen housing (1) is fixedly connected with a first fixing block (4); the first fixing blocks (4) are a pair and are symmetrically arranged on both sides of the support rod (12); the middle part of the side wall of the first fixing block (4) is rotatably connected with a support plate (41); the other end of the support plate (41) is rotatably connected with a second fixing block (42); the second fixing block (42) is fixedly connected to the fixing cylinder (16); and a torsion spring is provided between the support plate (41) and the second fixing block (42).

5. The LED outdoor display lightning protection device according to claim 1, characterized in that: A waterproof cloth (5) is fixedly connected to the middle of the side wall of the notch (11); the waterproof cloth (5) is a pair and is symmetrically arranged on both sides of the support rod (12); the other side of the waterproof cloth (5) is fixedly connected to the fixing ring (32); the waterproof cloth (5) is made of elastic material.

6. The LED outdoor display lightning protection device according to claim 2, characterized in that: A water guide plate (6) is fixedly connected to the middle portion of the side wall of the water retaining plate (25); the water guide plate (6) is arranged in an inclined structure.

7. The LED outdoor display lightning protection device according to claim 6, characterized in that: A sealing ring (7) is fixedly connected to the middle of the side wall of the water retaining plate (25); the sealing ring (7) and the support rod (12) are correspondingly arranged; and the sealing ring (7) is made of elastic material.

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