Outdoor display screen with high heat dissipation performance

Abstract

The invention discloses an outdoor display screen with high heat dissipation performance, and belongs to the technical field of outdoor display screens, and the outdoor display screen comprises a display assembly used for displaying information; the dustproof assembly is used for preventing external dust from entering the display assembly; the supporting assembly is used for supporting the dustproof assembly; the dismounting assembly is used for dismounting the cleaning dustproof assembly; the rotating assembly is used for driving the dustproof assembly to rotate; the protection assembly is used for protecting the rotating assembly; the transmission assembly is used for driving the dustproof assembly to rotate by the rotating assembly; the positioning assembly is used for limiting the protection assembly; and the heat dissipation assembly is used for dissipating heat of the display assembly. According to the invention, the fans in the exhaust pipe and the air inlet pipe are started, so that electric appliance elements in the display screen can be cooled, and the dust screen is arranged, so that external dust can be prevented from entering the display screen to damage the display screen.

Description

Technical Field

[0001] This invention relates to an outdoor display screen, and more particularly to an outdoor display screen with high heat dissipation performance, belonging to the field of outdoor display screen technology. Background Technology

[0002] When conducting outdoor information displays, monitors are often required. The use of monitors can greatly increase the amount of information that can be displayed; you only need to change the information displayed on the monitor according to the display requirements.

[0003] According to invention application number 202110612957.1, an outdoor display screen with high heat dissipation performance is disclosed, comprising: a cabinet; a display unit, the display unit being disposed inside the cabinet and fixedly installed with the cabinet; a heat dissipation mechanism, the heat dissipation mechanism being disposed inside the cabinet and located on one side of the display unit, wherein the heat dissipation mechanism includes: a heat-conducting plate and a wind-cooling mechanism, the heat-conducting plate being fixedly connected to the display unit, and the wind-cooling mechanism being disposed on one side of the heat-conducting plate; and an air intake mechanism, the air intake mechanism being disposed on the outside of the cabinet. In actual use, the above technical solution allows external dust to easily enter the display screen through the air intake pipe and exhaust pipe, which can easily damage the electrical components inside the display screen. Summary of the Invention

[0004] The main objective of this invention is to solve the problem of inconvenient dust protection for display screens, and to provide an outdoor display screen with high heat dissipation performance.

[0005] The purpose of this invention is to provide a system that, by activating fans in the exhaust and intake pipes, can dissipate heat from the electrical components in the display screen. A dustproof screen prevents external dust from entering and damaging the display screen. A motor, when activated, drives a second rotating rod, which in turn drives a main pulley, which in turn drives an auxiliary pulley, which in turn drives a first rotating rod. The rotation of the first rotating rod facilitates the rotation of the dustproof plate, thus removing any clogged dustproof screen from the intake and exhaust pipes and allowing the cleaned dustproof screen to continue working at the intake and exhaust pipes. This prevents the dustproof screen from becoming clogged and affecting heat dissipation. A base plate and support columns work together to support the display screen. The first rotating rod is rotatably connected to a first support ring via a bearing. Side rods, working in conjunction with the first support ring, facilitate the rotation of the first rotating rod. A rotating rod provides support, pulling the limiting plate causes the guide ring to slide on the guide rod, shortening the first spring and thus moving the limiting plate to slide the positioning block out of the slot. Pulling the dustproof net allows the mounting block to slide out of the mounting groove, facilitating the removal and cleaning of clogged dustproof nets. The second support ring, connecting rod, and second connecting ring work together to support the second rotating rod. A positioning plate, when pulled, causes the slip ring to slide on the sliding rod, shortening the second spring and thus moving the positioning plate to slide the limiting block out of the limiting groove. Pulling the protective cover causes the slider to slide in the sliding groove, moving the protective cover away from the protective plate, thus facilitating motor maintenance. The protective cover and protective plate work together to protect the motor. The slip ring and sliding rod are slidably connected to guide and limit the positioning plate and limiting block. A handle facilitates pulling the positioning plate.

[0006] To achieve the above objectives, the main technical solution adopted by the present invention includes:

[0007] Display components are used to display information; Dustproof components are used to prevent external dust from entering the display components; Support components are used to support the dustproof components; Disassembly component: Used to remove and clean the dustproof component; Rotating component, used to drive the dustproof component to rotate; Protective components are used to protect rotating components; Transmission components are used to rotate the dustproof components. Positioning components are used to limit the movement of protective components; Heat dissipation components are used to dissipate heat from the display components.

[0008] Preferably, the display component includes a base plate, a display screen, and a support column, wherein the support column is mounted on the base plate, and the display screen is mounted on one end of the support column.

[0009] Preferably, the heat dissipation assembly includes an air intake pipe, a fan, and an exhaust pipe. An air intake pipe is installed on one side of the display screen, and an exhaust pipe is installed on the other side of the display screen. A fan is installed inside both the exhaust pipe and the air intake pipe.

[0010] Preferably, the support assembly includes a first support ring, a side rod, and a first rotating rod. The side rod is mounted on the base plate, and the first support ring is mounted on one end of the side rod. The first rotating rod is rotatably mounted on the first support ring.

[0011] Preferably, the dustproof component includes a dustproof plate, a dustproof net, and a first connecting ring. The first connecting ring is installed on the first rotating rod, the dustproof plate is installed on the first connecting ring, and multiple dustproof nets are installed on the dustproof plate.

[0012] Preferably, the disassembly assembly includes a limiting plate, a guide ring, a guide rod, a first spring, a mounting block, and a positioning block. The mounting block is installed on the dustproof net. The dustproof plate has a mounting groove that cooperates with the mounting block. The guide rod is installed on the dustproof plate. The guide ring is slidably installed on the guide rod. The limiting plate is installed on the guide ring. The positioning block is installed on the limiting plate. The mounting block has a slot that cooperates with the positioning block. The guide ring is connected to the dustproof plate through the first spring.

[0013] Preferably, the rotating assembly includes a second support ring, a connecting rod, a second connecting ring, a second rotating rod, and a motor. The motor is mounted on the base plate, and the second rotating rod is mounted on the output end of the motor. The second support ring is mounted on the side rod, and the connecting rod is mounted on the second support ring. One end of the connecting rod is mounted on the second connecting ring, and the second rotating rod is rotatably connected to the second connecting ring.

[0014] Preferably, the protective component includes a protective cover, a protective plate, and a slider. The protective plate is mounted on the base plate, the protective cover is slidably mounted on the base plate, the slider is mounted on the protective cover, and the base plate has a groove that cooperates with the slider.

[0015] Preferably, the positioning assembly includes a positioning plate, a handle, a slide rod, a second spring, a slip ring, and a limiting block. The slide rod is mounted on the protective plate, a slip ring is slidably mounted on the slide rod, the positioning plate is mounted on the slip ring, the slip ring is connected to the slide rod through the second spring, the handle is mounted on the positioning plate, the limiting block is mounted on the positioning plate, and the protective cover has a limiting groove that cooperates with the limiting block.

[0016] Preferably, a main pulley is mounted on the second rotating rod, and an auxiliary pulley is mounted on the first rotating rod, with the main pulley connected to the auxiliary pulley via a belt.

[0017] Beneficial technical effects of the present invention: 1. The outdoor display screen with high heat dissipation performance according to the present invention can dissipate heat from the electrical components in the display screen by setting up fans in the exhaust pipe and air inlet pipe. By setting up a dustproof net, it can prevent external dust from entering the display screen and causing damage. By setting up a motor, the motor starts and drives the second rotating rod to rotate. When the second rotating rod rotates, it drives the main pulley to rotate. Through the belt, it drives the auxiliary pulley to rotate, which in turn drives the first rotating rod to rotate. The rotation of the first rotating rod can facilitate the rotation of the dustproof plate, thereby moving the blocked dustproof net away from the air inlet and exhaust pipes. The cleaned dustproof net is then moved to the air inlet and exhaust pipes to continue working, which can prevent the dustproof net from being blocked and affecting the heat dissipation effect. Pulling the limiting plate, the guide ring slides on the guide rod, the first spring shortens, and then drives the limiting plate to move, sliding the positioning block out of the slot. Pulling the dustproof net, the mounting block slides out of the mounting groove, and the blocked dustproof net is removed and cleaned.

[0018] 2. By setting a positioning plate, pulling the positioning plate causes the slip ring to slide on the slide rod, shortening the second spring and thus moving the positioning plate to slide the limiting block out of the limiting groove. Pulling the protective cover causes the slider to slide in the slide groove, allowing the protective cover to move away from the protective plate, which facilitates maintenance of the motor by the staff. The protective cover and the protective plate work together to protect the motor. The slip ring and the slide rod are slidably connected to guide and limit the positioning plate and the limiting block. The handle makes it easy to pull the positioning plate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the intake pipe structure of the present invention; Figure 3 This is a schematic diagram of the auxiliary belt pulley structure of the present invention; Figure 4 This is a schematic diagram of the dustproof net structure of the present invention; Figure 5 This is a schematic diagram of the mounting block structure of the present invention; Figure 6 This is a schematic diagram of the fan structure of the present invention; Figure 7 This is a schematic diagram of the second spring structure of the present invention; Figure 8 This is a schematic diagram of the slider structure of the present invention; Figure 9This is a schematic diagram of the limiting block structure of the present invention.

[0020] In the diagram: 1. Base plate; 11. Display screen; 12. Support column; 2. Dustproof plate; 21. Dustproof net; 22. First connecting ring; 3. First support ring; 31. Side rod; 32. First rotating rod; 4. Limiting plate; 41. Guide ring; 42. Guide rod; 43. First spring; 44. Mounting block; 45. Positioning block; 5. Second support ring; 51. Connecting rod; 52. Second connecting ring; 53. Second rotating rod; 54. Motor; 6. Protective cover; 61. Protective plate; 62. Slider; 7. Main pulley; 71. Belt; 72. Auxiliary pulley; 8. Positioning plate; 81. Handle; 82. Slide rod; 83. Second spring; 84. Slip ring; 85. Limiting block; 9. Inlet pipe; 91. Fan; 92. Exhaust pipe. Detailed Implementation

[0021] To enable those skilled in the art to understand the technical solution of the present invention more clearly, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0022] like Figures 1-9As shown, the outdoor display screen with high heat dissipation performance provided in this embodiment includes a display component for displaying information; a dustproof component for preventing external dust from entering the display component; a support component for supporting the dustproof component; a disassembly component for disassembling and cleaning the dustproof component; a rotation component for driving the dustproof component to rotate; a protective component for protecting the rotation component; a transmission component for driving the dustproof component to rotate; a positioning component for limiting the position of the protective component; and a heat dissipation component for dissipating heat from the display component. The display component includes a base plate 1, a display screen 11, and a support column 12. The support column 12 is mounted on the base plate 1, and the display screen 11 is mounted on one end of the support column 12. The heat dissipation component includes an air intake pipe 9, a fan 91, and... An exhaust pipe 92 is installed on one side of the display screen 11, and an air intake pipe 9 is installed on the other side of the display screen 11. Both the exhaust pipe 92 and the air intake pipe 9 have a fan 91 installed inside. The support assembly includes a first support ring 3, a side rod 31, and a first rotating rod 32. A side rod 31 is installed on the base plate 1, and a first support ring 3 is installed at one end of the side rod 31. A first rotating rod 32 is rotatably installed on the first support ring 3. The dustproof assembly includes a dustproof plate 2, a dustproof net 21, and a first connecting ring 22. A first connecting ring 22 is installed on the first rotating rod 32, and a dustproof plate 2 is installed on the first connecting ring 22. Multiple dustproof nets 21 are installed on the dustproof plate 2. The disassembly assembly includes a limiting plate 4, a guide ring 41, a guide rod 42, a first spring 43, a mounting block 44, and a positioning block. 45. A mounting block 44 is installed on the dustproof net 21. A mounting groove that mates with the mounting block 44 is opened on the dustproof plate 2. A guide rod 42 is installed on the dustproof plate 2. A guide ring 41 is slidably installed on the guide rod 42. A limit plate 4 is installed on the guide ring 41. A positioning block 45 is installed on the limit plate 4. A slot that mates with the positioning block 45 is opened on the mounting block 44. The guide ring 41 is connected to the dustproof plate 2 by a first spring 43. The rotating assembly includes a second support ring 5, a connecting rod 51, a second connecting ring 52, a second rotating rod 53, and a motor 54. The motor 54 is installed on the base plate 1. The second rotating rod 53 is installed at the output end of the motor 54. A second support ring 5 is installed on the side rod 31. A connecting rod 51 is installed on the second support ring 5. One end of the first rotating rod 32 is equipped with a second connecting ring 52, and the second rotating rod 53 is rotatably connected to the second connecting ring 52. A main pulley 7 is installed on the second rotating rod 53, and an auxiliary pulley 72 is installed on the first rotating rod 32. The main pulley 7 is connected to the auxiliary pulley 72 via a belt 71. By setting up an exhaust pipe 92 and a fan 91 in the air intake pipe 9, heat can be dissipated from the electrical components in the display screen 11. By setting up a dustproof net 21, external dust can be prevented from entering the display screen 11 and causing damage. By setting up a motor 54, the motor 54 is started, which drives the second rotating rod 53 to rotate. When the second rotating rod 53 rotates, it drives the main pulley 7 to rotate, which in turn drives the auxiliary pulley 72 to rotate via the belt 71, which in turn drives the first rotating rod 32 to rotate.The rotation of the first rotating rod 32 facilitates the rotation of the dustproof plate 2, thereby moving the clogged dustproof net 21 away from the air intake pipe 9 and exhaust pipe 92. The cleaned dustproof net 21 is then moved to the air intake pipe 9 and exhaust pipe 92 to continue working, preventing blockage and ensuring effective heat dissipation. The base plate 1 and support column 12 work together to support the display screen 11. The first rotating rod 32 is rotatably connected to the first support ring 3 via a bearing. The side rod 31, in cooperation with the first support ring 3, facilitates support for the first rotating rod 32. Pulling the limiting plate 4 causes the guide ring 41 to slide on the guide rod 42, shortening the first spring 43 and moving the limiting plate 4. This moves the positioning block 45 out of the slot, and pulling the dustproof net 21 causes the mounting block 44 to slide out of the mounting groove, facilitating the removal and cleaning of the clogged dustproof net 21. The second support ring 5, connecting rod 51, and second connecting ring 52 work together to support the second rotating rod 53.

[0023] In this embodiment, as Figure 1 , Figure 2 , Figure 7 , Figure 8 and Figure 9 As shown, the protective assembly includes a protective cover 6, a protective plate 61, and a slider 62. The protective plate 61 is mounted on the base plate 1, the protective cover 6 is slidably mounted on the base plate 1, and the slider 62 is mounted on the protective cover 6. The base plate 1 has a groove that mates with the slider 62. The positioning assembly includes a positioning plate 8, a handle 81, a sliding rod 82, a second spring 83, a slip ring 84, and a limiting block 85. The sliding rod 82 is mounted on the protective plate 61, and the slip ring 84 is slidably mounted on the sliding rod 82. The positioning plate 81 is mounted on the slip ring 84, and the slip ring 84 is connected to the sliding rod 82 via the second spring 83. The handle 81 is mounted on the positioning plate 8, and the limiting block 85 is mounted on the positioning plate 8. The protective cover 6 has a groove that mates with the slider 62. The limiting slots of the limiting blocks 85 cooperate with each other. By setting the positioning plate 8, pulling the positioning plate 8 causes the slip ring 84 to slide on the slide rod 82, and the second spring 83 to shorten, thereby driving the positioning plate 8 to move and slide the limiting block 85 out of the limiting slot. Pulling the protective cover 6 causes the slider 62 to slide in the slide groove, which can move the protective cover 6 away from the protective plate 61, thus making it easier for the staff to maintain the motor 54. By setting the protective cover 6 and the protective plate 61 to cooperate with each other, the motor 54 can be easily protected. By setting the slip ring 84 to slide on the slide rod 82, the positioning plate 8 and the limiting block 85 can be easily guided and limited. By setting the handle 81, the positioning plate 8 can be easily pulled.

[0024] In this embodiment, as Figures 1-9 As shown in the figure, the working process of an outdoor display screen with high heat dissipation performance provided in this embodiment is as follows: Step 1: The fan 91 in the exhaust pipe 92 and the intake pipe 9 is started to dissipate heat from the electrical components in the display screen 11. When the dust filter 21 is blocked, the motor 54 is started, which drives the second rotating rod 53 to rotate. When the second rotating rod 53 rotates, it drives the main pulley 7 to rotate, which drives the auxiliary pulley 72 to rotate through the belt 71, which in turn drives the first rotating rod 32 to rotate. The rotation of the first rotating rod 32 drives the dust filter 2 to rotate, thereby moving the blocked dust filter 21 away from the intake pipe 9 and the exhaust pipe 92, and moving the cleaned dust filter 21 to the intake pipe 9 and the exhaust pipe 92 to continue working. Step 2: Pull the limiting plate 4, the guide ring 41 slides on the guide rod 42, the first spring 43 shortens, and then drives the limiting plate 4 to move, so that the positioning block 45 slides out of the slot, pull the dustproof net 21, and slide the mounting block 44 out of the mounting groove, and remove and clean the clogged dustproof net 21. Step 3: Pull the positioning plate 8, the slip ring 84 slides on the slide rod 82, the second spring 83 shortens, and thus drives the positioning plate 8 to move and slide the limit block 85 out of the limit groove. Pull the protective cover 6, the slider 62 slides in the slide groove, so that the protective cover 6 moves away from the protective plate 61, and thus the staff can perform maintenance on the motor 54.

[0025] In summary, in this embodiment, the outdoor display screen with high heat dissipation performance, by setting the exhaust pipe 92 and the fan 91 in the air inlet pipe 9 to start, can dissipate heat from the electrical components in the display screen 11. By setting the dustproof net 21, external dust can be prevented from entering the display screen 11 and causing damage. By setting the motor 54, the motor 54 starts and drives the second rotating rod 53 to rotate. When the second rotating rod 53 rotates, it can drive the main pulley 7 to rotate. Through the belt 71, it can drive the auxiliary pulley 72 to rotate, thereby... The first rotating rod 32 can rotate, which facilitates the rotation of the dustproof plate 2, thereby moving the blocked dustproof net 21 away from the air intake pipe 9 and exhaust pipe 92, and allowing the cleaned dustproof net 21 to continue working at the air intake pipe 9 and exhaust pipe 92. This avoids the dustproof net 21 becoming blocked and affecting the heat dissipation effect. By setting the base plate 1 and the support column 12 to cooperate with each other, the display screen 11 can be easily supported. The first rotating rod 32 is rotatably connected to the first support ring 3 through a bearing, and the side rod 31 cooperates with the first support ring 3. This facilitates support for the first rotating rod 32. Pulling the limiting plate 4 causes the guide ring 41 to slide on the guide rod 42, shortening the first spring 43 and thus moving the limiting plate 4, causing the positioning block 45 to slide out of the slot. Pulling the dustproof net 21 causes the mounting block 44 to slide out of the mounting groove, facilitating the removal and cleaning of the clogged dustproof net 21. By setting the second support ring 5, connecting rod 51, and second connecting ring 52 to cooperate with each other, it facilitates support for the second rotating rod 53. By setting the positioning plate 8, pulling the positioning plate 8 causes the sliding ring 84 to slide on the sliding rod 82. When the slide is slidable, the second spring 83 shortens, which in turn drives the positioning plate 8 to move and slide the limiting block 85 out of the limiting groove. Pulling the protective cover 6, the slider 62 slides in the slide groove, which can move the protective cover 6 away from the protective plate 61, thus making it easier for the staff to maintain the motor 54. By setting the protective cover 6 and the protective plate 61 to cooperate with each other, the motor 54 can be easily protected. By setting the slip ring 84 to slide and connect with the slide rod 82, the positioning plate 8 and the limiting block 85 can be easily guided and limited. By setting the handle 81, the positioning plate 8 can be easily pulled.

[0026] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0027] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0028] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. An outdoor display screen for high heat dissipation performance, characterized by, include Display components are used to display information; Dustproof components are used to prevent external dust from entering the display components; Support components are used to support the dustproof components; Disassembly component: Used to remove and clean the dustproof component; Rotating component, used to drive the dustproof component to rotate; Protective components are used to protect rotating components; Transmission components are used to rotate the dustproof components. Positioning components are used to limit the movement of protective components; Heat dissipation components are used to dissipate heat from the display components.

2. The outdoor display screen for high heat dissipation performance according to claim 1, wherein, The display component includes a base plate (1), a display screen (11) and a support column (12). The support column (12) is mounted on the base plate (1), and the display screen (11) is mounted on one end of the support column (12).

3. The outdoor display screen for high heat dissipation performance according to claim 2, characterized in that, The heat dissipation assembly includes an air inlet pipe (9), a fan (91) and an exhaust pipe (92). An air inlet pipe (9) is installed on one side of the display screen (11), and an exhaust pipe (92) is installed on the other side of the display screen (11). A fan (91) is installed inside both the exhaust pipe (92) and the air inlet pipe (9).

4. The outdoor display screen for high heat dissipation performance according to claim 3, characterized in that, The support assembly includes a first support ring (3), a side rod (31) and a first rotating rod (32). The side rod (31) is installed on the base plate (1). The first support ring (3) is installed at one end of the side rod (31). The first rotating rod (32) is rotatably installed on the first support ring (3).

5. An outdoor display screen with high heat dissipation performance according to claim 4, characterized in that, The dustproof assembly includes a dustproof plate (2), a dustproof net (21) and a first connecting ring (22). The first connecting ring (22) is installed on the first rotating rod (32), the dustproof plate (2) is installed on the first connecting ring (22), and multiple dustproof nets (21) are installed on the dustproof plate (2).

6. An outdoor display screen with high heat dissipation performance according to claim 5, characterized in that, The disassembly assembly includes a limiting plate (4), a guide ring (41), a guide rod (42), a first spring (43), a mounting block (44), and a positioning block (45). The dustproof net (21) is equipped with the mounting block (44). The dustproof plate (2) has a mounting groove that cooperates with the mounting block (44). The dustproof plate (2) is equipped with the guide rod (42). The guide ring (41) is slidably mounted on the guide rod (42). The limiting plate (4) is installed on the guide ring (41). The positioning block (45) is installed on the limiting plate (4). The mounting block (44) has a slot that cooperates with the positioning block (45). The guide ring (41) is connected to the dustproof plate (2) through the first spring (43).

7. An outdoor display screen with high heat dissipation performance according to claim 6, characterized in that, The rotating assembly includes a second support ring (5), a connecting rod (51), a second connecting ring (52), a second rotating rod (53), and a motor (54). The motor (54) is mounted on the base plate (1). The output end of the motor (54) is equipped with the second rotating rod (53). The second support ring (5) is mounted on the side rod (31). The connecting rod (51) is mounted on the second support ring (5). The second connecting ring (52) is mounted on one end of the connecting rod (51). The second rotating rod (53) is rotatably connected to the second connecting ring (52).

8. An outdoor display screen with high heat dissipation performance according to claim 7, characterized in that, The protective components include a protective cover (6), a protective plate (61), and a slider (62). The protective plate (61) is installed on the base plate (1), the protective cover (6) is slidably installed on the base plate (1), the slider (62) is installed on the protective cover (6), and the base plate (1) has a groove that cooperates with the slider (62).

9. An outdoor display screen with high heat dissipation performance according to claim 8, characterized in that, The positioning assembly includes a positioning plate (8), a handle (81), a slide rod (82), a second spring (83), a slip ring (84), and a limiting block (85). The slide rod (82) is mounted on the protective plate (61), and the slip ring (84) is slidably mounted on the slide rod (82). The positioning plate (8) is mounted on the slip ring (84), and the slip ring (84) is connected to the slide rod (82) through the second spring (83). The handle (81) is mounted on the positioning plate (8), and the limiting block (85) is mounted on the positioning plate (8). The protective cover (6) has a limiting groove that cooperates with the limiting block (85).

10. An outdoor display screen with high heat dissipation performance according to claim 9, characterized in that, The second rotating rod (53) is equipped with a main pulley (7), and the first rotating rod (32) is equipped with an auxiliary pulley (72). The main pulley (7) is connected to the auxiliary pulley (72) via a belt (71).

Images