CN217559390U - LED display screen - Google Patents

Abstract

The utility model discloses a LED display screen relates to the LED display screen field, including the LED display screen, the LED display screen outer wall is provided with fixed frame, the top of fixed frame is fixed with the water catch bowl, the multiunit water inlet is installed to the bottom of water catch bowl, one side that the inside of fixed frame is located the LED display screen is connected with first transparent soft board, the transparent soft board of second is installed to one side that first transparent soft board was kept away from to the inside of fixed frame. The utility model discloses a set up the LED display screen, fixed frame, the water catch bowl, the water inlet, the honeycomb duct, first transparent soft board, the transparent soft board of second, when the outdoor beginning is rainy, the rainwater passes through water catch bowl flow direction water inlet, inside the rainwater passes through the water catch bowl and flows in the honeycomb duct, because the inner wall laminating of rotor plate and honeycomb duct, so pass through honeycomb duct inner wall flow direction rotor plate when the rainwater, the gravity of water does and drives the rotor plate and remove down, the rotor plate removes and drives the third dwang and rotate, the third dwang rotates and drives the action wheel and rotate.

Description

LED display screen

Technical Field

The utility model relates to a LED display screen field specifically is a LED display screen.

Background

The LED display screen (LED display) is a flat panel display, it is made up of small LED module panels, used for displaying the apparatus of various information such as characters, images, video, etc., the LED electronic display screen integrates microelectronic technology, computer technology, information processing, it has the advantages of bright color, wide dynamic range, high brightness, long service life, stable and reliable operation, etc., the LED display screen is widely used in commercial media, performance market, sports stadium, information transmission, news issue, stock exchange, etc., can meet the needs of different environments.

At present, when domestic LED display screens are used outdoors, rainwater often permeates into the LED display screens in rainy days, so that internal circuits of the LED display screens are short-circuited to damage the LED display screens; and make a few LED display screens have protective measures, usually adopt the electrical machinery to drive the transparent cover to protect the LED level, because it is comparatively inconvenient to connect the external power supply in the open air, the electrical machinery usually needs to connect with external power supply and can work, lead to the electrical machinery to use comparatively tedious; meanwhile, the traditional LED display screen can generate more floating dust after being used for a long time, and when the interior of the LED display screen is not cleaned for a long time, the floating dust inside the LED display screen can easily cause short circuit of an internal circuit of the LED display screen, so that the service life of the LED display screen is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the LED display screen is provided for solving the problems that the outdoor LED display screen is safe to use in rainy days, the outdoor power supply method of the motor is complicated, and floating dust in the LED display screen is inconvenient to clean.

In order to achieve the above purpose, the utility model provides a following technical scheme: a LED display screen comprises an LED display screen, wherein the outer wall of the LED display screen is provided with a fixed frame, a water collecting tank is fixed at the top end of the fixed frame, a plurality of groups of water inlets are installed at the bottom end of the water collecting tank, one side, positioned inside the fixed frame, of the LED display screen is connected with a first transparent soft board, one side, far away from the first transparent soft board, of the inside of the fixed frame is provided with a second transparent soft board, the top end of the second transparent soft board is fixedly provided with a limiting pipe, the inside of the limiting pipe is provided with a sliding groove, an internal thread is arranged inside the sliding groove, the top end of the limiting pipe is connected with a trapezoidal limiting block, one side of the second transparent soft board is fixedly provided with a battery, the top end of the battery is connected with a limiting wheel, one side of the limiting wheel is provided with a rotating wheel, the inside of the rotating wheel is fixedly provided with a first rotating rod, and one end of the rotating wheel is fixedly provided with a fixed wheel, the outer wall of the first rotating rod is positioned at one end of the rotating wheel and is provided with an electromagnet, one end of the first rotating rod, which is far away from the rotating wheel, is provided with a first helical gear, the outer wall of the first helical gear is connected with a second helical gear, one end of the second helical gear is fixed with a second rotating rod, the outer wall of the second rotating rod is provided with a driven wheel, the outer wall of the driven wheel is connected with a chain, the inner wall of the chain is positioned at one side of the driven wheel and is fixed with a driving wheel, the inner wall of the driving wheel is connected with a third rotating rod, the outer wall of the third rotating rod is positioned at one end of the driving wheel and is provided with a flow guide pipe, the outer wall of the third rotating rod is positioned inside the flow guide pipe and is fixed with a rotating plate, one end of the third rotating rod is fixed with a gear disc, the outer wall of the gear disc is connected with a rotating disc, and the inner wall of the rotating disc is provided with a fourth rotating rod, the one end of fourth dwang is fixed with the fifth dwang, the one end that the fifth dwang was kept away from to the fourth dwang is installed the motor, the outer wall connection of fifth dwang has the third helical gear, the outer wall of third helical gear is provided with the fourth helical gear, the one end of fourth helical gear is fixed with the sixth dwang, the fan is installed to the outer wall of sixth dwang, the outer wall connection of honeycomb duct has control switch, control switch's one end has the baffle, the bottom mounting of baffle has the spring, control switch's below is connected with first conducting strip, the bottom of first conducting strip is provided with the second conducting strip.

Preferably, the limiting wheel comprises a conductive rod connected with the battery, a conductive ring is arranged on the outer wall of the conductive rod, and a plurality of groups of friction plates are fixed on the outer wall of the conductive ring.

Preferably, the inside of fixed frame is provided with trapezoidal stopper assorted spacing spout, the bottom of trapezoidal stopper is provided with the pulley, the inside of fixed frame be provided with pulley assorted slide rail, the internal thread and the rotation wheel outer wall screw thread phase-match of spout inner wall, the friction disc outer wall is provided with the screw thread opposite with spout inner wall internal thread, the conducting rod is connected through pivot and shaft joint rotation with the battery.

Preferably, the outer wall connection of electro-magnet has the electric conduction card, the electric conduction card passes through wire and electric capacity electric connection with control switch, electric conduction card and electro-magnet sliding connection, first dwang passes through the bearing rotation with fixed frame and is connected, electro-magnet and first dwang fixed connection, the outer wall of first helical gear be provided with second helical gear outer wall assorted external screw thread, second helical gear and second dwang fixed connection, the second dwang with from driving wheel fixed connection, the inside of rolling wheel is provided with magnet.

Preferably, the outer wall from the driving wheel is provided with the latch with chain inner wall assorted, the outer wall of action wheel is provided with the latch with action wheel outer wall assorted, the diameter length of action wheel is from the twice of driving wheel diameter length.

Preferably, the third dwang rotates with the honeycomb duct to be connected, rotor plate and third dwang fixed connection, third dwang and toothed disc fixed connection, the outer wall of toothed disc is provided with rotary disk outer wall assorted latch, rotary disk and fourth dwang fixed connection, the fourth dwang rotates with the shaft coupling through the pivot with the motor to be connected, the motor passes through bearing plate fixed connection with fixed frame, fourth dwang and fifth dwang fixed connection, fifth dwang and third bevel gear fixed connection, the outer wall of third bevel gear be provided with fourth bevel gear outer wall assorted screw thread, fourth bevel gear and sixth dwang fixed connection, sixth dwang and fan fixed connection, the outer wall of fan and the one end fixed connection of keeping away from the LED display screen, the one end that the LED display screen was kept away from to the fan is provided with the filter screen, the top of honeycomb duct is provided with the guide plate, spring and second conducting strip fixed connection.

Preferably, the quantity of battery is two sets of, and is two sets of battery position of contact department is provided with touch switch, battery and touch switch pass through wire electric connection, touch switch and motor pass through wire electric connection, the conducting ring passes through wire electric connection with the battery, the output and the second conducting strip of battery pass through wire electric connection, the second conducting strip passes through wire electric connection with first conducting strip, control switch and first conducting strip pass through wire electric connection, control switch and motor pass through wire electric connection.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the LED display screen, fixed frame, the water catch bowl, the water inlet, the honeycomb duct, first transparent soft board, second transparent soft board, when the open air begins to rain, the rainwater flows to the water inlet through the water catch bowl, the rainwater flows into the honeycomb duct inside through the water catch bowl, because the rotor plate is laminated with the inner wall of honeycomb duct, so when the rainwater flows to the rotor plate through the deflector of the inner wall of honeycomb duct, it moves to drive the rotor plate to do under the gravity of water, the rotor plate moves and drives third dwang anticlockwise rotation, third dwang rotates and drives the action wheel rotation, the action wheel drives the chain and moves, thereby drive the driven wheel rotation, it rotates to drive the second dwang to rotate from the driven wheel, the second dwang rotates and drives the second helical gear rotation, the second helical gear rotation drives the first helical gear rotation, first dwang rotates and drives first dwang rotation, first dwang rotates and drives the rotation of rotation wheel, the rotation of rotation wheel rotates and drives the second transparent soft board to move, thereby drive the stopper tube to move, the trapezoidal flexible board slides inside the fixed frame, because the top of first transparent soft board also is provided with the first transparent soft board, so first transparent soft board moves simultaneously, when the transparent soft board contacts with the second transparent soft board, it closely to display the second transparent soft board, it is convenient to the second transparent soft board under the transparent soft board, it closely with the LED display screen, when the transparent soft board, the second transparent soft board, it closely to display screen closely under the transparent soft board;

2. the utility model discloses a set up and rotate the wheel, spacing wheel, the battery, including a motor, an end cap, a controller, and a cover plate, the honeycomb duct, the rotary disk, the insulating disc, when rotating the wheel and removing to the spout end, because the spout end portion is not provided with rotates the internal thread that takes turns assorted, thereby lead to rotating the wheel and rotate and can't drive first transparent soft board and second transparent soft board and remove, rotate the wheel and contact with the friction disc simultaneously, friction piece and rotation wheel friction electrification, the electric current that the friction disc produced charges the battery through conducting ring and conducting rod, when the person of being convenient for uses the rainwater to produce the electric energy through kinetic energy conversion at last and supply power to the motor;

3. the utility model discloses a set up the motor, the fourth dwang, the fifth dwang, the third helical gear, the fourth helical gear, sixth dwang, the fan, can drive the rotation of fifth dwang when the fourth dwang rotates, the fifth dwang rotates and drives the rotation of third helical gear, thereby it rotates to drive the fourth helical gear, the fourth helical gear rotates and drives the rotation of sixth dwang, the sixth dwang rotates and drives the fan and rotate, fifth dwang clockwise rotation when raining, so fan anticlockwise rotation, fan anticlockwise rotation drives the air and the outside discharge of dust flotation in the fixed frame, after external rain stops, fifth dwang anticlockwise rotation, thereby lead to the fan reversal, the fan reversal drives the outside air and cools down the heat dissipation to the LED display screen.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the flow guide tube of the present invention;

FIG. 3 is a schematic view of the internal structure of the flow guide pipe of the present invention;

fig. 4 is a schematic structural view of the rotating plate of the present invention;

FIG. 5 is a schematic view of a second transparent flexible board according to the present invention;

FIG. 6 is a schematic view of the structure of the limiting wheel of the present invention;

fig. 7 is a schematic structural view of the rotating wheel of the present invention;

fig. 8 is a schematic structural view of the limiting tube of the present invention;

fig. 9 is the structure schematic diagram of the trapezoidal stopper of the present invention.

In the figure: 1. an LED display screen; 2. a fixing frame; 3. a water collection tank; 4. a water inlet; 5. a first transparent flexible board; 6. a second transparent flexible board; 7. a chute; 8. a battery; 9. a limiting wheel; 901. a friction plate; 902. conducting rings; 903. a conductive rod; 10. a rotating wheel; 11. a first rotating lever; 12. an electromagnet; 13. a first helical gear; 14. a second helical gear; 15. a second rotating rod; 16. a driven wheel; 17. a chain; 18. a driving wheel; 19. a third rotating rod; 20. a flow guide pipe; 21. a rotating plate; 22. a gear plate; 23. rotating the disc; 24. a fixed wheel; 25. a fourth rotating rod; 26. a motor; 27. a fifth rotating rod; 28. a third bevel gear; 29. a fourth helical gear; 30. a sixth rotating rod; 31. a fan; 32. a limiting pipe; 33. a trapezoidal limiting block; 34. a control switch; 35. a first conductive sheet; 36. a second conductive sheet; 37. a baffle plate; 38. a spring; 39. and (4) internal threads.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. Next, an embodiment of the present invention will be described with reference to the overall structure thereof.

Referring to fig. 1-8, an LED display screen includes an LED display screen 1, a fixed frame 2 is disposed on an outer wall of the LED display screen 1, a water collecting tank 3 is fixed on a top end of the fixed frame 2, a plurality of sets of water inlets 4 are installed on a bottom end of the water collecting tank 3, a first transparent soft board 5 is connected to one side of the fixed frame 2 located inside the LED display screen 1, a second transparent soft board 6 is installed on one side of the fixed frame 2 away from the first transparent soft board 5, a limiting pipe 32 is fixed on a top end of the second transparent soft board 6, a sliding chute 7 is formed inside the limiting pipe 32, internal threads 39 are disposed inside the sliding chute 7, a trapezoidal limiting block 33 is connected to a top end of the limiting pipe 32, a battery 8 is fixed on one side of the second transparent soft board 6, a limiting wheel 9 is connected to a top end of the battery 8, a rotating wheel 10 is installed on one side of the limiting wheel 9, a first rotating rod 11 is fixed inside the rotating wheel 10, and a fixed wheel 24 is fixed on one end of the rotating wheel 10, an electromagnet 12 is arranged at one end of a first rotating rod 11, which is positioned at one end of a rotating wheel 10, of the first rotating rod 11, a first helical gear 13 is arranged at one end, which is far away from the rotating wheel 10, of the first rotating rod 11, a second helical gear 14 is connected to the outer wall of the first helical gear 13, a second rotating rod 15 is fixed at one end of the second helical gear 14, a driven wheel 16 is arranged at the outer wall of the second rotating rod 15, a chain 17 is connected to the outer wall of the driven wheel 16, a driving wheel 18 is fixed at one side, which is positioned at the driven wheel 16, of the inner wall of the chain 17, a third rotating rod 19 is connected to the inner wall of the driving wheel 18, a guide pipe 20 is arranged at one end, which is positioned at the driving wheel 18, of the outer wall of the third rotating rod 19, a rotating plate 21 is fixed inside the guide pipe 20, a gear disc 22 is fixed at one end of the third rotating rod 19, and a rotating disc 23 is connected to the outer wall of the gear disc 22, fourth dwang 25 is installed to the inner wall of rotary disk 23, the one end of fourth dwang 25 is fixed with fifth dwang 27, fourth dwang 25 is kept away from the one end of fifth dwang 27 and is installed motor 26, the outer wall connection of fifth dwang 27 has third helical gear 28, the outer wall of third helical gear 28 is provided with fourth helical gear 29, the one end of fourth helical gear 29 is fixed with sixth dwang 30, fan 31 is installed to the outer wall of sixth dwang 30, the outer wall connection of honeycomb duct 20 has control switch 34, there is baffle 37 in control switch 34's one end, the bottom mounting of baffle 37 has spring 38, control switch 34's below is connected with first conducting strip 35, the bottom of first conducting strip 35 is provided with second conducting strip 36.

Please refer to fig. 6, the limiting wheel 9 includes a conductive rod 903 connected to the battery 8, a conductive ring 902 is disposed on an outer wall of the conductive rod 903, and a plurality of friction plates 901 are fixed on an outer wall of the conductive ring 902 to facilitate friction electrification between the conductive ring 902 and the conductive rod 903.

Please refer to fig. 5 and fig. 2, a limit sliding slot matched with the trapezoid limit block 33 is arranged inside the fixing frame 2, a pulley is arranged at the bottom end of the trapezoid limit block 33, a sliding rail matched with the pulley is arranged inside the fixing frame 2, an internal thread 39 on the inner wall of the sliding slot 7 is matched with an external wall thread of the rotating wheel 10, an external wall of the friction plate 901 is provided with a thread opposite to the internal thread on the inner wall of the sliding slot 7, and the conductive rod 903 and the battery 8 are rotatably connected with the shaft coupling through a rotating shaft, so that the rotating wheel 10 drives the sliding slot 7 to move.

With reference to fig. 2, an outer wall of the electromagnet 12 is connected to a conductive card, the conductive card is electrically connected to a control switch 34 through a conductive wire to a capacitor, the conductive card is slidably connected to the electromagnet 12, the first rotating rod 11 is rotatably connected to the fixed frame 2 through a bearing, the electromagnet 12 is fixedly connected to the first rotating rod 11, an outer wall of the first helical gear 13 is provided with an external thread matching an outer wall of the second helical gear 14, the second helical gear 14 is fixedly connected to the second rotating rod 15, the second rotating rod 15 is fixedly connected to the driven wheel 16, a magnet is disposed inside the rotating wheel 10, an outer wall of the driven wheel 16 is provided with a latch matching an inner wall of the chain 17, an outer wall of the driving wheel 18 is provided with a latch matching an outer wall of the driving wheel 18, a diameter length of the driving wheel 18 is twice as large as a diameter length of the driven wheel 16, the third rotating rod 19 is rotatably connected to the guide tube 20, the rotating plate 21 is fixedly connected to the third rotating rod 19, the third helical gear 19 is fixedly connected to the rotating rod 22, an outer wall of the gear disk 22 is provided with a latch matching an outer wall of the rotating disk 23, the rotating disk 23 is fixedly connected to a fourth rotating rod 25, the fourth rotating rod 25 and a motor 26 is connected to a fifth helical gear 30, a display screen 30 is provided with a display screen fixed to the fixed frame 2, and a fan, a display screen 30, and a display screen 30 is provided with a display screen 30, the spring 38 is fixedly connected with the second conductive sheet 36, the limiting tube 32 is made of an elastic material, the output end of the flow guide tube 20 is communicated with the outside of the device body, rainwater is conveniently discharged through the flow guide tube 20, and meanwhile, the rotating plate 21 rotates to drive the second transparent soft plate 6 to move through force transmission.

Please refer to fig. 2, the number of the batteries 8 is two, two groups of the batteries 8 are provided, the contact positions of the two groups of the batteries 8 are provided with touch switches, the batteries 8 are electrically connected to the touch switches through wires, the touch switches are electrically connected to the motor 26 through wires, the conductive ring 902 is electrically connected to the batteries 8 through wires, the output end of the battery 8 is electrically connected to the second conductive sheet 36 through wires, the second conductive sheet 36 is electrically connected to the first conductive sheet 35 through wires, the control switch 34 is electrically connected to the first conductive sheet 35 through wires, and the control switch 34 is electrically connected to the motor 26 through wires, so that the batteries 8 can supply power to the motor 26.

The working principle is as follows: firstly, when raining starts outdoors, rainwater flows to the water inlet 4 through the water collecting tank 3, rainwater flows into the interior of the flow guide pipe 20 through the water inlet 4, and due to the fact that the rotating plate 21 is attached to the inner wall of the flow guide pipe 20, when rainwater flows to the rotating plate 21 through a guide plate on the inner wall of the flow guide pipe 20, the rotating plate 21 is driven to rotate under the action of gravity of water, the rotating plate 21 moves to drive the third rotating rod 19 to rotate counterclockwise, the third rotating rod 19 rotates to drive the driving wheel 18 to rotate, the driving wheel 18 drives the chain 17 to move, so as to drive the driven wheel 16 to rotate, the driven wheel 16 rotates to drive the second rotating rod 15 to rotate, the second rotating rod 15 rotates to drive the second helical gear 14 to rotate, the second helical gear 14 rotates to drive the first helical gear 13 to rotate, the first helical gear 13 rotates to drive the first rotating rod 11 to rotate, the first rotating rod 11 rotates to drive the rotating wheel 10 to rotate, the rotating wheel 10 rotates to drive the second transparent flexible plate 6 to move, so as to drive the limiting tube 32 to move, the limiting tube 33 to slide, the pulley 33 moves to drive the pulley at the bottom end of the limiting tube 33 to slide in the fixed frame 2, and the transparent flexible plate 5 is also arranged at the top end of the first transparent flexible plate 5, so that the transparent flexible display panel 5 can be convenient for the transparent flexible display when the transparent flexible panel 5 and the transparent flexible display flexible panel 5 can be in contact with the transparent flexible panel 7 when the transparent flexible panel 5 and the transparent flexible panel 5, and the transparent flexible panel 7;

when the rotating wheel 10 moves to the end of the chute 7, because the end part of the chute 7 is not provided with an internal thread matched with the rotating wheel 10, the rotating wheel 10 cannot drive the first transparent flexible board 5 and the second transparent flexible board 6 to move due to rotation, and meanwhile, the rotating wheel 10 is in contact with the friction plate 901, the friction plate 901 and the rotating wheel 10 are electrified by friction, and the current generated by the friction plate 901 charges the battery 8 through the conducting ring 902 and the conducting rod 903;

when the external environment is in a rainy state, the baffle 37 in the draft tube 20 compresses the spring 38 under the pressure of the gravity of rainwater and moves downwards in a fan shape, the spring 38 compresses to drive the second conducting strip 36 to move downwards, and the second conducting strip 36 moves downwards to be disconnected with the first conducting strip 35;

when rainfall stops in an external environment, the spring 38 resets to drive the second conducting plate 36 to reset, the second conducting plate 36 resets and is electrically connected with the first conducting plate 35, so that the battery 8 supplies power to the control switch 34 through the second conducting plate 36 and the first conducting plate 35, the magnetic pole direction of the electromagnet 12 is controlled to be changed after the control switch 34 is powered on, after the magnetic pole direction of the electromagnet 12 is changed, the magnetic pole directions of the magnet in the rotating wheel 10 and the electromagnet 12 are changed from different directions to the same direction, and therefore the rotating wheel 10 moves in the direction of the magnetic force opposite to the fixed wheel 24;

when the control switch 34 is powered on, the power switch of the motor 26 is controlled to be started, after the power switch of the motor 26 is started, the output end of the motor 26 drives the fourth rotating rod 25 to rotate, so as to drive the rotating disk 23 to rotate, the rotating disk 23 rotates to drive the gear disk 22 to rotate, the gear disk 22 rotates to drive the third rotating rod 19 to rotate clockwise, the third rotating rod 19 rotates to drive the driving wheel 18 to rotate, the driving wheel 18 drives the chain 17 to move, so as to drive the driven wheel 16 to rotate, the driven wheel 16 rotates to drive the second rotating rod 15 to rotate, the second rotating rod 15 rotates to drive the second helical gear 14 to rotate, the second helical gear 14 rotates to drive the first helical gear 13 to rotate, the first helical gear 13 rotates to drive the first rotating rod 11 to rotate, the first rotating rod 11 rotates to drive the rotating wheel 10 to rotate, the rotating wheel 10 rotates to drive the second transparent flexible board 6 to move, so as to drive the limiting pipe 32 to move, the trapezoidal limiting block 33 to slide inside the fixed frame 2, and since the top end of the first transparent flexible board 5 is also provided with the rotating wheel 10;

the first transparent soft board 5 and the second transparent soft board 6 move to drive the two groups of batteries 8 to move, when the first transparent soft board 5 and the second transparent soft board 6 move to the initial positions, the two groups of batteries 8 are tightly attached, so that the touch switch is started, the power switch of the motor 26 is controlled to be turned off by starting the touch switch, and the touch switch and the control switch 34 respectively control the starting and the stopping of the motor 26;

can drive fifth dwang 27 when fourth dwang 25 rotates and rotate, fifth dwang 27 rotates and drives third helical gear 28 and rotate, thereby it rotates to drive fourth helical gear 29, fourth helical gear 29 rotates and drives sixth dwang 30 and rotate, sixth dwang 30 rotates and drives fan 31 and rotate, fifth dwang 27 clockwise rotation when raining, so fan 31 anticlockwise rotation, fan 31 anticlockwise rotation drives the outside discharge of air and dust of floating in the fixed frame 2, after external rain stops, fifth dwang 27 anticlockwise rotation, thereby lead to fan 31 reversal, fan 31 reversal drives outside air and cools down the heat dissipation to the LED display screen.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a LED display screen, includes LED display screen (1), its characterized in that: the LED display screen comprises an LED display screen (1), wherein a fixed frame (2) is arranged on the outer wall of the LED display screen (1), a water collecting tank (3) is fixed at the top end of the fixed frame (2), a plurality of groups of water inlets (4) are installed at the bottom end of the water collecting tank (3), one side, located on the LED display screen (1), of the inside of the fixed frame (2) is connected with a first transparent soft board (5), one side, away from the first transparent soft board (5), of the inside of the fixed frame (2) is provided with a second transparent soft board (6), the top end of the second transparent soft board (6) is fixed with a limiting pipe (32), the inside of the limiting pipe (32) is provided with a sliding chute (7), an internal thread (39) is arranged in the sliding chute (7), the top end of the limiting pipe (32) is connected with a trapezoidal limiting block (33), one side, of the second transparent soft board (6) is fixed with a battery (8), the top end of the battery (8) is connected with a limiting wheel (9), one side of the limiting wheel (9) is provided with a rotating wheel (10), one end of the rotating wheel (10) is fixed with a rotating wheel (10), one end, away from the rotating wheel (11) of the rotating wheel (10) is provided with a rotating wheel (12), one end, which is located on the outer wall of the first rotating wheel (11), and one end of the rotating wheel (11) is provided with an electromagnet (12), the outer wall of the first helical gear (13) is connected with a second helical gear (14), one end of the second helical gear (14) is fixed with a second rotating rod (15), the outer wall of the second rotating rod (15) is provided with a driven wheel (16), the outer wall of the driven wheel (16) is connected with a chain (17), one side of the inner wall of the chain (17) which is positioned on the driven wheel (16) is fixed with a driving wheel (18), the inner wall of the driving wheel (18) is connected with a third rotating rod (19), the outer wall of the third rotating rod (19) is positioned on one end of the driving wheel (18) and is provided with a guide pipe (20), the outer wall of the third rotating rod (19) is positioned inside a guide pipe (20) and is fixed with a rotating plate (21), one end of the third rotating rod (19) is fixed with a gear disc (22), the outer wall of the gear disc (22) is connected with a rotating disc (23), the inner wall of the rotating disc (23) is provided with a fourth rotating rod (25), one end of the fourth rotating disc (25) is fixed with a fifth rotating rod (27), one end of the fourth rotating disc (25) which is far away from one end of the fifth helical gear (27) is provided with a motor (26), and the outer wall of the fourth helical gear (28) is provided with a fourth helical gear (28), the one end of fourth helical gear (29) is fixed with sixth dwang (30), fan (31) are installed to the outer wall of sixth dwang (30), the outer wall of honeycomb duct (20) is connected with control switch (34), there is baffle (37) in the one end of control switch (34), the bottom mounting of baffle (37) has spring (38), the below of control switch (34) is connected with first conducting strip (35), the bottom of first conducting strip (35) is provided with second conducting strip (36).

2. The LED display screen of claim 1, wherein: the limiting wheel (9) comprises a conductive rod (903) connected with the battery (8), a conductive ring (902) is arranged on the outer wall of the conductive rod (903), and a plurality of groups of friction plates (901) are fixed on the outer wall of the conductive ring (902).

3. The LED display screen of claim 2, wherein: the inside of fixed frame (2) be provided with trapezoidal stopper (33) assorted spacing spout, the bottom of trapezoidal stopper (33) is provided with the pulley, the inside of fixed frame (2) be provided with pulley assorted slide rail, internal thread (39) and the rotation wheel (10) outer wall screw thread phase-match of spout (7) inner wall, friction disc (901) outer wall is provided with the screw thread opposite with spout (7) inner wall internal thread, conducting rod (903) are connected through pivot and shaft joint rotation with battery (8).

4. The LED display screen of claim 1, wherein: the outer wall connection of electro-magnet (12) has the electric conduction card, the electric conduction card passes through wire and electric capacity electric connection with control switch (34), electric conduction card and electro-magnet (12) sliding connection, first dwang (11) are connected through the bearing rotation with fixed frame (2), electro-magnet (12) and first dwang (11) fixed connection, the outer wall of first helical gear (13) be provided with second helical gear (14) outer wall assorted external screw thread, second helical gear (14) and second dwang (15) fixed connection, second dwang (15) and from driving wheel (16) fixed connection, the inside of rotating wheel (10) is provided with magnet.

5. The LED display screen of claim 1, wherein: the outer wall of driven wheel (16) is provided with the latch with chain (17) inner wall assorted, the outer wall of action wheel (18) is provided with the latch with action wheel (18) outer wall assorted, the diameter length of action wheel (18) is the twice of driven wheel (16) diameter length.

6. The LED display screen of claim 1, wherein: the third rotating rod (19) is rotatably connected with the flow guide pipe (20), the rotating plate (21) is fixedly connected with the third rotating rod (19), the third rotating rod (19) is fixedly connected with a gear disc (22), the outer wall of the gear disc (22) is provided with clamping teeth matched with the outer wall of the rotating disc (23), the rotating disc (23) is fixedly connected with the fourth rotating rod (25), the fourth rotating rod (25) and the motor (26) are rotationally connected with the coupling through a rotating shaft, the motor (26) is fixedly connected with the fixed frame (2) through a bearing plate, the fourth rotating rod (25) is fixedly connected with the fifth rotating rod (27), the fifth rotating rod (27) is fixedly connected with a third bevel gear (28), the outer wall of the third bevel gear (28) is provided with a thread matched with the outer wall of the fourth bevel gear (29), the fourth bevel gear (29) is fixedly connected with the sixth rotating rod (30), the sixth rotating rod (30) is fixedly connected with a fan (31), the outer wall of the fan (31) is fixedly connected with one end of the fixed frame (2) far away from the LED display screen (1), a filter screen is arranged at one end of the fan (31) far away from the LED display screen (1), the top of honeycomb duct (20) is provided with the guide plate, spring (38) and second conducting strip (36) fixed connection.

7. The LED display screen of claim 2, wherein: the quantity of battery (8) is two sets of, and is two sets of battery (8) position of contact department is provided with touch switch, battery (8) and touch switch pass through wire electric connection, touch switch and motor (26) pass through wire electric connection, conducting ring (902) and battery (8) pass through wire electric connection, the output and the second conducting strip (36) of battery (8) pass through wire electric connection, second conducting strip (36) and first conducting strip (35) pass through wire electric connection, control switch (34) and motor (26) pass through wire electric connection.

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