CN114420006B

CN114420006B - Protection device for outdoor display screen panel

Info

Publication number: CN114420006B
Application number: CN202210321241.0A
Authority: CN
Inventors: 胡家旺; 周伊欣; 肖乐
Original assignee: Shenzhen Outdoor Texian Equipment Co ltd
Current assignee: Shenzhen Outdoor Texian Equipment Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-06-28
Anticipated expiration: 2042-03-30
Also published as: CN114420006A

Abstract

The invention belongs to the technical field of outdoor display screens, in particular to a screen panel protection device for an outdoor display screen, which aims at solving the problem that the screen is easily scratched by a flying corpse due to the tiny protection effect of the conventional movable outdoor display screen on a panel. When the protective screen is used, all the acrylic battens can be driven to swing in parallel simultaneously by pulling the arch-shaped supporting rods up and down, a dynamic protective barrier is formed in front of the screen on the premise of not influencing the watching of passers-by, and the condition that the traditional totally-enclosed protective device is easy to cause poor heat dissipation of the surface of the screen is avoided.

Description

Protection device for outdoor display screen panel

Technical Field

The invention relates to the technical field of outdoor display screens, in particular to a protection device for an outdoor display screen panel.

Background

The LED advertising vehicle is an associated product after the rise of the LED industry. The automobile and the large-scale LED display screen are organically combined, the three-dimensional video animation mode is rich and diverse in content, the image-text information is displayed in real time, and movable advertising can be carried out. Generally used for product promotion, brand promotion, show activities, sales site exhibition, sports events, concerts and the like. The advertisement board can be displayed, exchanged and interacted on site, has wide publicity range and can effectively obtain the maximum advertisement propagation effect.

The prior art discloses a promotional vehicle of application No. 201520158324.8. Compared with the prior art, the vehicle-mounted power generation system is provided with the high-power generator, can work normally even without being externally connected with commercial power outdoors, and can carry out propaganda with rich moving contents in the driving process of the vehicle; because the electronic computer is installed, synchronous playing and asynchronous playing can be selected for playing videos, and face-to-face publicity can be performed to the outside while the video publicity is played, so that the publicity effect can be optimal; but this kind of LED advertisement car can produce the scraping at the driving in-process inevitable, perhaps the foreign matter splashes and strikes and cause the damage to the panel on the screen, and present most protection mode is for not influencing the bandwagon effect, just pastes the protection film on the screen, and this kind of protection mode effect is very little.

Disclosure of Invention

The invention provides a protection device for an outdoor display screen panel, aiming at overcoming the problem that the screen is easily scratched by a flying corpse due to the tiny protection effect of the panel by the existing mobile outdoor display screen.

In order to achieve the purpose, the invention adopts the following technical scheme: a protective device for an outdoor display screen panel comprises a display screen fixing box with a rectangular hole in the front and a display screen body fixed inside the display screen fixing box, wherein the display screen body is rectangular and is horizontally placed, the short edge of the rectangular hole is vertical to the ground, acrylic battens distributed at equal intervals are rotatably connected between the inner walls at two ends of the rectangular hole, shaft levers are clamped at two ends of each acrylic batten, gears are sleeved on the shaft levers at one end, racks meshed with all the gears are slidably connected to the inner walls of the display screen fixing box close to the gears, a first guide ring and a second guide ring are respectively fixed to the outer walls of the racks close to two ends, an arched abutting rod is fixed to the top end of each rack, a motor fixing seat is fixed to the inner wall of the display screen fixing box close to the top end, and a speed reduction motor is fixed to the side face of the motor fixing seat below the arched abutting rod, gear motor's output shaft top is fixed with the bent axle, and the below of bent axle is provided with aerifys the mechanism, the end of giving vent to anger of aerifing the mechanism is connected with the U-shaped tuber pipe that the opening is decurrent, and the U-shaped tuber pipe is located the one end that is close to the locomotive, thereby can be when using, twitch through bow-shaped upper and lower of resisting the pole and can drive all ya keli laths parallel oscillations simultaneously, do not influence the preceding protective screen that forms a developments under the prerequisite that passerby watched at the screen, and avoided traditional totally enclosed's protection device to lead to the not good condition of screen surface heat dissipation to appear easily.

As a preferable scheme in the invention, the C-shaped pressing plates which are distributed equidistantly are fixed on the inner wall of the display screen fixing box close to the rack, and the rollers which are tightly abutted against the back surface of the rack are arranged on the inner sides of the C-shaped pressing plates, so that when the arched abutting rod drives the rack to move up and down, the phenomenon that a certain gear is separated from the rack due to vibration and further an acrylic plate strip at the position is not parallel to other parts is avoided.

As the optimal scheme in the invention, the opposite ends of the shaft levers at the two ends of the same acrylic batten are provided with the notches, the notches are matched with the thickness of the acrylic batten, the upper surface and the lower surface of the acrylic batten are provided with the rough surfaces at the notches, the bottom of the display screen body is provided with the damping base, the static friction force and the clamping effect of a contact surface are improved, and the replacement is more convenient when a certain acrylic batten is damaged.

As a preferable scheme in the invention, the end, close to the display screen body, of the acrylic batten is provided with the strip-shaped groove, the transparent bristles which are tightly distributed are inserted in the strip-shaped groove, and the transparent bristles are different in length, so that most of the area of the surface of the display screen body can be cleaned through the swing of the acrylic batten in the process of advertisement display, the phenomenon that the definition is reduced due to the fact that the acrylic batten is stuck on the surface of the display screen body is avoided, and the visual effect is ensured to be continuously good.

As a preferable scheme in the invention, step notches which are centrosymmetric with each other are respectively formed at edges of two sides of each opposite acrylic batten, and the thicknesses of the upper step notch and the lower step notch on the upper acrylic batten and the lower acrylic batten which are adjacent are mutually matched, so that the acrylic battens just form a complete plane when rotating to the state that the surfaces of the acrylic battens are vertical to the ground, and the display screen body is integrally covered, and the protection effect in extreme weather is improved.

According to the preferable scheme of the invention, the elliptic wheel is fixed at one end of the crankshaft, which is far away from the speed reduction motor, and is positioned under the arch-shaped support rod, the roller groove is formed under the arch-shaped support rod, the roller is arranged in the roller groove, and the compression spring is fixed between the top end of the arch-shaped support rod and the top inner wall of the display screen fixing box, so that when the display screen fixing box is used, the rack can continuously move up and down by matching with the reset function of the compression spring when the elliptic wheel rotates, and then the acrylic plate strip is driven to continuously swing.

According to the preferable scheme of the invention, one side of the U-shaped air pipe, which is close to the display screen body, is provided with the tangent plane, the tangent plane is spliced with the inclined spray pipes, the included angle of the axial lines of the inclined spray pipes from top to bottom is increasingly larger, and the caliber of the inclined spray pipe close to the lower part is smaller than that of the upper part, so that the heat dissipation of dust removal can be carried out on the surface of the display screen body along the increased air speed of the advancing automobile when the U-shaped air pipe acts.

As a preferable scheme in the invention, the inflating mechanism comprises a connecting rod sleeved on the crankshaft, a compression barrel is arranged at the bottom end of the connecting rod, a hose is inserted at the bottom end of the compression barrel and communicated with an air inlet of the U-shaped air pipe, and the air compression of the compression barrel is realized through the matching of the crankshaft and the connecting rod.

As a preferable scheme in the invention, a tower-shaped sliding block is fixed on one side, far away from the inclined spraying pipe, of the U-shaped air pipe close to the top end, a tension spring is fixed on the top end of the tower-shaped sliding block, a spring baffle is fixed on the top end of the tension spring, groove-shaped slide rails which are in sliding fit with the tower-shaped sliding block are fixed on the inner walls of two sides of the display screen fixing box close to the top end, telescopic pipes are fixed on two northward sides of each groove-shaped slide rail, anti-skidding blocks are fixed on one ends, far away from the groove-shaped slide rails, of the telescopic pipes, and the spring baffle is fixed on the bottom of each groove-shaped slide rail.

As a preferable scheme in the invention, an air injection barrel with an axis line parallel to the running direction of the automobile is fixed at the bottom of the display screen fixing box, two baffle plates are fixed at the end part of the air injection barrel, a steel ball is connected between the two baffle plates in a sliding manner, spring ropes are fixed between the outer wall of the steel ball and the two baffle plates, an ejector rod is fixed at one side of the steel ball close to the air injection barrel, a piston disc is fixed at the end part of the ejector rod penetrating through the air injection barrel, a one-way air valve pipe I and a one-way air valve pipe II with outward air inlet directions are respectively clamped at the two ends of the air injection barrel, air outlet pipes are respectively inserted at the two ends of the outer wall of the air injection barrel and connected with a three-way pipe through a pipeline, and the other pipe orifice of the three-way pipe is communicated with an air inlet pipe of a U-shaped air pipe, so that the steel ball can be driven to leave a central point when the automobile is changed in the running process of the automobile, and then the steel ball can be converted into the left-right movement of the piston disc under the action of the ejector rod, and then compress the gas of the air injection barrel, and finally provide high-speed airflow for the U-shaped air pipe.

As the preferable scheme of the invention, the spherical groove is formed in the lower surface of the steel ball, the ball is embedded in the spherical groove, the sealing ring matched with the diameter of the ejector rod is clamped in the middle of one end, close to the steel ball, of the air injection barrel, the sealing ring is sleeved on the outer wall of the piston disc, the check valves are clamped in the two air outlet pipes, the sensitivity of the steel ball is better, and the position change of the piston disc can be reflected as long as the speed of an automobile is slightly changed, so that air pressure is generated.

To sum up, beneficial effect in this scheme does:

1. this kind of be used for outdoor display screen panel protection device, through setting up the equidistance and distribute the ya keli lath of swing on display screen body surface, can be when using, twitch through bow-shaped about supporting the pole and can drive all ya keli laths parallel oscillations simultaneously, form a dynamic protection protective screen in the front of screen under the prerequisite that does not influence passerby and watch, avoided traditional totally enclosed protection device to lead to the not good condition of screen surface heat dissipation to appear easily moreover.

Drawings

FIG. 1 is a partial cross-sectional view illustrating an outdoor display screen panel protection device according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a protective device for an outdoor display screen panel according to the present invention;

FIG. 3 is a partial cross-sectional view of a protective device for an outdoor display screen panel according to the present invention with the display screen removed;

FIG. 4 is a schematic view of a U-shaped air duct for an outdoor display screen panel protection device according to the present invention;

FIG. 5 is an enlarged view of a portion A of FIG. 2 illustrating an apparatus for protecting an outdoor display screen panel according to the present invention;

FIG. 6 is a schematic perspective view of a U-shaped air duct for use in a protection device of an outdoor display screen panel according to a second embodiment of the present invention;

FIG. 7 is a schematic perspective view of a protective device for an outdoor display screen panel according to a third embodiment of the present invention;

fig. 8 is a schematic cross-sectional view illustrating an air-blowing bucket for an outdoor display screen panel protection apparatus according to a third embodiment of the present invention.

In the figure: 1. a display screen fixing box; 2. a motor fixing seat; 3. an elliptical wheel; 4. a compression spring; 5. an arched abutting rod; 6. a first guide ring; 7. a step notch; 8. acrylic battens; 9. a gear; 10. a C-shaped pressing plate; 1001. a roller; 11. a shaft lever; 12. a rack; 13. a second guide ring; 14. a damping mount; 15. transparent bristles; 16. a display screen body; 17. a U-shaped air duct; 18. an inclined jet pipe; 19. compressing the barrel; 20. a reduction motor; 21. a crankshaft; 22. a roller; 23. cutting into noodles; 24. a telescopic pipe; 25. anti-skid blocks; 26. a groove-shaped slide rail; 27. a tension spring; 28. a tower-shaped slider; 29. a spring cord; 30. a steel ball; 31. an air outlet pipe; 32. a one-way air valve pipe I; 33. an air-jet barrel; 34. a baffle plate; 35. a top rod; 36. a ball bearing; 37. a seal ring; 38. a one-way air valve pipe II; 39. a piston disc; 40. and (5) sealing rings.

Detailed Description

Example 1

Referring to fig. 1-5, a screen panel protection device for outdoor display, comprising a display fixing box 1 with a rectangular hole on the front and a display body 16 fixed inside the display fixing box 1, wherein the display body 16 is rectangular and horizontally placed, the short side of the rectangular hole is perpendicular to the ground, acrylic strips 8 are rotationally connected between the inner walls of the two ends of the rectangular hole and are distributed equidistantly, two ends of the acrylic strips 8 are respectively clamped with a shaft lever 11, a gear 9 is sleeved on the shaft lever 11 at one end, racks 12 meshed with all the gears 9 are slidably connected to the inner wall of the display fixing box 1 near the gear 9, a first guide ring 6 and a second guide ring 13 are respectively fixed near the two ends of the outer wall of each rack 12, an arc-shaped abutting rod 5 is fixed on the top end of each rack 12, a motor fixing seat 2 is fixed on the inner wall of the display fixing box 1 near the top end, and the side of motor fixing base 2 is located the below of bow-shaped support rod 5 and is fixed with gear motor 20, gear motor 20's output shaft top is fixed with bent axle 21, and the below of bent axle 21 is provided with aerifys the mechanism, the end of giving vent to anger of aerifing the mechanism is connected with opening decurrent U-shaped tuber pipe 17, and U-shaped tuber pipe 17 is located the one end near the locomotive, thereby can be when using, twitch through bow-shaped support rod 5 from top to bottom can drive all ya keli laths 8 parallel oscillations simultaneously, form a dynamic protective screen in the front of screen under the prerequisite that does not influence passerby and watch, and avoided traditional totally enclosed protection device to lead to the not good condition of screen surface heat dissipation to appear easily.

Wherein, the inner wall of the fixed case 1 of display screen is fixed with the C-shaped clamp plate 10 that the equidistance distributes near rack 12 department, and the inboard of C-shaped clamp plate 10 is provided with the roller 1001 that tightly contradicts with the rack 12 back to can avoid when bow-shaped pole 5 drives rack 12 drunkenness from top to bottom, avoid leading to certain gear 9 and rack 12 to produce and break away from because of receiving vibrations, and then cause the inferior gram force lath 8 of this department and other nonparallels.

Wherein, the one end that 11 is relative of axostylus axostyle at same inferior gram force lath 8 both ends is all opened jaggedly, and the thickness looks adaptation of breach and inferior gram force lath 8, and the upper and lower surface of inferior gram force lath 8 is located breach department and all is provided with the matte, the bottom of display screen body 16 is provided with vibration damping mount 14, has improved the static friction power and the joint effect of contact surface, and it is also more convenient to change when certain inferior gram force lath 8 is impaired.

Wherein, the one end that inferior gram force lath 8 is close to display screen body 16 is opened there is the bar groove, and bar inslot peg graft has the translucent bristle 15 of closely arranging, and translucent bristle 15 length differs to can be at the in-process of advertisement show, can clean the most area in surface of display screen body 16 through 8 swings of inferior gram force lath 8, avoid gluing the raise dust and lead to the definition to reduce, ensure that visual effect lasts well.

Wherein, inferior gram force lath 8 both sides limit arris department that backs on the back has opened respectively and has been central symmetry's ladder breach 7 of each other, and the thickness adaptation of two upper and lower ladder breachs 7 on two upper and lower adjacent inferior gram force laths 8 for inferior gram force lath 8 just in time forms a complete plane when rotating to surface and perpendicular to the ground, and then covers display screen body 16 is whole, has improved the safeguard effect under the extreme weather.

Wherein, the one end that gear motor 20 was kept away from to bent axle 21 is fixed with elliptical wheel 3, and elliptical wheel 3 is located bow-shaped support rod 5 under, and opens the gyro wheel groove under bow-shaped support rod 5, and the gyro wheel inslot is provided with gyro wheel 22, is fixed with compression spring 4 between the top of bow-shaped support rod 5 and the top inner wall of display screen fixed box 1, thereby can be when using, cooperate compression spring 4's reset effect can let rack 12 drunkenness from top to bottom constantly when elliptical wheel 3 pivoted, then drive ya keli lath 8 and constantly swing.

Wherein, one side that U-shaped tuber pipe 17 is close to display screen body 16 is opened there is tangent plane 23, and pegs graft on tangent plane 23 and has a plurality of oblique spray pipes 18, and the contained angle of the oblique spray pipe 18 axial lead from top to bottom is bigger and bigger, and is close to the bore of the oblique spray pipe 18 of below and is less than the bore of top to when U-shaped tuber pipe 17 effect, can carry out the heat dissipation that removes dust along the increase wind speed that the car gos forward to display screen body 16's surface.

Wherein, the inflating mechanism comprises a connecting rod sleeved on the crankshaft 21, the bottom end of the connecting rod is provided with a compression barrel 19, the bottom end of the compression barrel 19 is spliced with a hose, the hose is communicated with the air inlet of the U-shaped air pipe 17, and the gas compression of the compression barrel 19 is realized through the matching of the crankshaft 21 and the connecting rod.

The working principle is as follows: when the protective screen is used, the speed reducing motor 20 is started, the arc-shaped supporting rod 5 is driven to move up and down under the comprehensive action of the elliptical wheel 3 and the compression spring 4, all the gears 9 are driven to intermittently rotate forward and backward by the upward and downward movement of the arc-shaped supporting rod 5 and the rack 12 at the bottom of the arc-shaped supporting rod, so that the acrylic battens 8 are driven to simultaneously swing in parallel, a dynamic protective barrier is formed in front of the screen on the premise of not influencing the watching of passers, and the condition that the surface of the screen is poor in heat dissipation due to a traditional fully-closed protective device is avoided;

at the same time, the rotation of the crankshaft 21 drives the inflation mechanism to operate, and thus supplies air to the U-shaped air duct 17.

Example 2

Referring to fig. 6, a protection device for an outdoor display screen panel, in this embodiment, compared with embodiment 1, the protection device further includes a display screen fixing box 1 having a rectangular hole on the front surface thereof, and a display screen body 16 fixed inside the display screen fixing box 1, the display screen body 16 is rectangular and horizontally disposed, the short side of the rectangular hole is perpendicular to the ground, the inner walls of the two ends of the rectangular hole are rotatably connected with acrylic bars 8 distributed at equal intervals, two ends of the acrylic bars 8 are respectively clamped with a shaft lever 11, wherein the shaft lever 11 at one end is sleeved with a gear 9, the inner wall of the display screen fixing box 1 near the gear 9 is slidably connected with racks 12 engaged with all the gears 9, the outer wall of the racks 12 near the two ends is respectively fixed with a first guide ring 6 and a second guide ring 13, the top end of the racks 12 is fixed with an arc-shaped support rod 5, the inner wall of the display screen fixing box 1 near the top end is fixed with a motor fixing base 2, and the side of motor fixing base 2 is located the below of bow-shaped support rod 5 and is fixed with gear motor 20, gear motor 20's output shaft top is fixed with bent axle 21, and the below of bent axle 21 is provided with aerifys the mechanism, it is connected with opening decurrent U-shaped tuber pipe 17 to aerify the end of giving vent to anger of mechanism, and U-shaped tuber pipe 17 is located the one end near the locomotive, thereby can be when using, twitch through bow-shaped support rod 5 from top to bottom can drive all ya keli laths 8 parallel swing simultaneously, form a dynamic protection protective screen in the front of screen under the prerequisite that does not influence passerby and watch, and avoided traditional totally enclosed protection device to lead to the not good condition of screen surface heat dissipation to appear easily.

Wherein, aerify the mechanism including the connecting rod of cup jointing on bent axle 21, and the bottom of connecting rod is provided with compression bucket 19, and the bottom of compression bucket 19 is pegged graft and is had the hose, and the hose is linked together with the air inlet of U-shaped tuber pipe 17, carries out the gas compression of compression bucket 19 through the cooperation of bent axle 21 and connecting rod.

One side of the U-shaped air pipe 17, which is far away from the oblique spraying pipe 18, is close to the top end and is fixed with a tower-shaped sliding block 28, the top end of the tower-shaped sliding block 28 is fixed with a tension spring 27, the top end of the tension spring 27 is fixed with a spring baffle, the inner walls of the two sides of the display screen fixing box 1 are close to the top end and are fixed with groove-shaped sliding rails 26 which form sliding fit with the tower-shaped sliding blocks 28, the two northward sides of the groove-shaped sliding rails 26 are fixed with telescopic pipes 24, one ends, far away from the groove-shaped sliding rails 26, of the telescopic pipes 24 are fixed with anti-skidding blocks 25, and the spring baffle is fixed at the bottoms of the groove-shaped sliding rails 26, so that the automobile can run in the process, when the automobile bumps, the U-shaped air pipe 17 can be driven in a linkage manner, and the position of blowing is changed, and a larger range is acted by the least oblique spraying pipe 18.

Example 3

Referring to fig. 7-8, in this embodiment, compared with embodiment 1, the device further includes a display screen fixing box 1, an air injection barrel 33 having an axis parallel to the driving direction of the vehicle is fixed at the bottom of the display screen fixing box 1, two baffle plates 34 are fixed at the end of the air injection barrel 33, a steel ball 30 is slidably connected between the two baffle plates 34, a spring rope 29 is fixed between the outer wall of the steel ball 30 and each of the two baffle plates 34, a push rod 35 is fixed at one side of the steel ball 30 close to the air injection barrel 33, a piston disc 39 is fixed at the end of the push rod 35 penetrating through the air injection barrel 33, a one-way air valve tube 32 and a two-way air valve tube 38 facing outward in the air intake direction are respectively clamped at two ends of the air injection barrel 33, air outlet tubes 31 are respectively inserted at the outer wall of the air injection barrel 33 close to the two ends, the air outlet tubes 31 are connected to a three-way tube through a pipe, and the other tube orifice of the three-way pipe is communicated with the air inlet tube of the U-shaped air duct 17, therefore, the steel ball 30 can be driven to leave the central point when the automobile changes speed in the running process of the automobile, and then the steel ball is converted into the left-right movement of the piston disc 39 under the action of the ejector rod 35, so that the gas in the gas injection barrel 33 is compressed, and finally high-speed airflow is provided for the U-shaped air pipe 17.

Wherein, the lower surface of steel ball 30 is opened there is spherical groove, and spherical groove is embedded to have ball 36, the one end middle part joint that gas injection bucket 33 is close to steel ball 30 has the sealing ring 37 with ejector pin 35 diameter looks adaptation, the outer wall of piston dish 39 has cup jointed sealing washer 40, equal joint has the check valve in two outlet ducts 31, make the sensitivity of steel ball 30 better, as long as the speed of car has some changes can react for the position change of piston dish 39, and then produce atmospheric pressure.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. A protection device for an outdoor display screen panel comprises a display screen fixing box (1) with a rectangular hole in the front and a display screen body (16) fixed inside the display screen fixing box (1), wherein the short edge of the rectangular hole is perpendicular to the ground, acrylic battens (8) distributed equidistantly are rotatably connected between the inner walls at the two ends of the rectangular hole, the protection device is characterized in that shaft levers (11) are clamped at the two ends of the acrylic battens (8), gears (9) are sleeved on the shaft levers (11) at one end, racks (12) meshed with all the gears (9) are slidably connected at the positions, close to the gears (9), of the inner walls of the display screen fixing box (1), guide rings I (6) and guide rings II (13) are fixed on the outer walls of the racks (12) close to the two ends respectively, an arched support rod (5) is fixed at the top end of the rack (12), a motor fixing seat (2) is fixed on the inner wall of the display screen fixing box (1) close to the top end, a speed reducing motor (20) is fixed on the side surface of the motor fixing seat (2) below the arched abutting rod (5), a crankshaft (21) is fixed at the top end of an output shaft of the speed reducing motor (20), an inflating mechanism is arranged below the crankshaft (21), an air outlet end of the inflating mechanism is connected with a U-shaped air pipe (17) with a downward opening, and the U-shaped air pipe (17) is located at one end close to the vehicle head;

Stepped notches (7) which are mutually centrosymmetric are respectively formed in the edges of two sides of each acrylic batten (8) which are opposite to each other, and the thicknesses of the upper stepped notch (7) and the lower stepped notch (7) on the upper acrylic batten (8) and the lower acrylic batten (8) which are adjacent to each other are mutually matched;

an elliptical wheel (3) is fixed at one end, far away from the speed reducing motor (20), of the crankshaft (21), the elliptical wheel (3) is located under the bow-shaped supporting rod (5), a roller groove is formed under the bow-shaped supporting rod (5), a roller (22) is arranged in the roller groove, and a compression spring (4) is fixed between the top end of the bow-shaped supporting rod (5) and the top inner wall of the display screen fixing box (1).

2. A protection device for an outdoor display screen panel according to claim 1, wherein C-shaped pressing plates (10) are fixed on the inner wall of the display screen fixing box (1) near the rack (12) and are distributed equidistantly, and rollers (1001) tightly abutting against the back surface of the rack (12) are arranged on the inner side of the C-shaped pressing plates (10).

3. The protection device for the outdoor display screen panel according to claim 1, wherein the opposite end of the shaft rod (11) at the two ends of the same acrylic batten (8) is provided with a notch, the notch is matched with the thickness of the acrylic batten (8), the upper surface and the lower surface of the acrylic batten (8) at the notch are provided with rough surfaces, and the bottom of the display screen body (16) is provided with a damping base (14).

4. A protection device for an outdoor display screen panel according to claim 1, wherein one end of the acrylic plate bar (8) close to the display screen body (16) is provided with a bar-shaped groove, and the bar-shaped groove is internally inserted with transparent brush hairs (15) which are closely arranged, and the length of the transparent brush hairs (15) is different.

5. The protection device for the outdoor display screen panel according to claim 1, wherein one side of the U-shaped air duct (17) near the display screen body (16) is provided with a cut surface (23), the cut surface (23) is inserted with a plurality of oblique nozzles (18), an included angle between axial lines of the oblique nozzles (18) from top to bottom is increased, and the caliber of the oblique nozzle (18) near the lower part is smaller than that of the upper part.

6. A protection device for outdoor display screen panel according to claim 5, characterized in that the said air charging mechanism comprises a connecting rod sleeved on the crankshaft (21), and the bottom end of the connecting rod is provided with a compression barrel (19), and the bottom end of the compression barrel (19) is inserted with a hose, the hose is connected with the air inlet of the U-shaped air duct (17).

7. The protection device for the outdoor display screen panel according to claim 1, wherein one side of the U-shaped air pipe (17) far away from the oblique nozzle (18) is fixed with a tower-shaped sliding block (28) near the top end, the top end of the tower-shaped sliding block (28) is fixed with a tension spring (27), the top end of the tension spring (27) is fixed with a spring baffle, the inner walls of two sides of the display screen fixing box (1) near the top end are fixed with groove-shaped sliding rails (26) which form sliding fit with the tower-shaped sliding block (28), the two northward sides of the groove-shaped sliding rails (26) are both fixed with telescopic pipes (24), one ends of the telescopic pipes (24) far away from the groove-shaped sliding rails (26) are both fixed with anti-skid blocks (25), and the spring baffle is fixed at the bottom of the groove-shaped sliding rails (26).

8. The protection device for the outdoor display screen panel according to claim 1, wherein the bottom of the display screen fixing box (1) is further fixed with an air injection barrel (33) with an axis line parallel to the driving direction of the automobile, the end of the air injection barrel (33) is fixed with two baffles (34), a steel ball (30) is connected between the two baffles (34) in a sliding manner, a spring rope (29) is fixed between the outer wall of the steel ball (30) and the two baffles (34), one side of the steel ball (30) close to the air injection barrel (33) is fixed with a mandril (35), the mandril (35) penetrates through the end of the air injection barrel (33) and is fixed with a piston disc (39), the two ends of the air injection barrel (33) are respectively clamped with a one-way valve tube I (32) and a one-way valve tube II (38) with the air inlet direction facing outwards, the outer wall of the air injection barrel (33) is respectively inserted with an air outlet tube (31) close to the two ends, the air outlet pipe (31) is connected with a three-way pipe through a pipeline, and the other pipe orifice of the three-way pipe is communicated with an air inlet pipe of the U-shaped air pipe (17).

9. The protection device for the outdoor display screen panel according to claim 8, wherein the lower surface of the steel ball (30) is opened with a spherical groove, the spherical groove is embedded with a ball (36), the middle part of one end of the air injection barrel (33) close to the steel ball (30) is clamped with a sealing ring (37) matched with the diameter of the ejector rod (35), the outer wall of the piston disc (39) is sleeved with a sealing ring (40), and two air outlet pipes (31) are clamped with a one-way valve.