Vehicle-mounted lifting LED warning screen

Abstract

A kind of vehicle-mounted lifting LED warning screen belongs to warning device, overcome the prior art lifting mechanism complex structure, low strength, the problem of cumbersome operation, low reliability, characterized in that the left and right sides of installation bottom plate are symmetrically welded with lifting guide rail made of channel steel, the top end of push rod of push rod motor installed on installation bottom plate is connected with display screen lifting frame, LED display screen is installed in display screen mounting frame installed in display screen lifting frame, moving roller is connected on display screen lifting frame, there is a fixed roller on the outer side of the flange of the upper end channel steel of the left and right two lifting guide rails, beneficial effect is that the lifting mechanism is simple in structure, high in strength, easy to operate, high in reliability, the stability of LED display screen during work is improved, the height when the LED display screen is lifted is higher than the cab, at the same time, the space in the air is increased, i.e. the visibility of long distance is increased, the warning distance is farther, and the rearview window view is not blocked, safe and reliable.

Description

Technical Field

[0001] This utility model relates to a warning device, and more particularly to a vehicle-mounted lifting LED warning screen. Background Technology

[0002] When roads need to be temporarily closed due to construction, rescue, temporary repairs, or other situations, reflective cones, warning signs, or guardrails are commonly used to ensure safety during the closure. However, the reflective materials on guardrails and cones are often damaged, resulting in poor reflectivity and failure to function properly. Furthermore, poor visibility due to rain, fog, or other inclement weather can cause vehicles to enter the temporary closure area, posing a significant hazard to on-site personnel. In its invention application CN201810616909.8 (authorization publication number CN108492731B), the applicant disclosed a "Portable Foldable LED Warning Screen." This invention features a simple structure, portability, low cost, light weight, high reliability, and good stability. The height of the warning screen can be adjusted freely and can be randomly slid and locked in place. However, although the invention has a central first ventilation and pressure relief hole and upper and lower second ventilation and pressure relief holes symmetrically provided on the panels of the left and right shells, which can prevent the invention from being blown over by the wind when it is unfolded and standing on the ground, and can reduce wind pressure by allowing wind to pass through the central first ventilation and pressure relief hole and the upper and lower second ventilation and pressure relief holes, the wind pressure resistance effect will be affected to a certain extent when the invention is adjusted to a certain height. In addition, the invention can randomly adjust the height of the main display screen and the secondary display screen by adjusting the first profile along the first slide rail and the second profile along the second slide rail and randomly locking and positioning them at any height, but the adjustable height is very limited, and the invention is not suitable for vehicle lifting.

[0003] Utility model application CN201920517921.3 discloses "a fast, convenient, and easy-to-use vehicle-mounted lifting display device." This utility model includes a fixed housing, two primary lifting sliders respectively installed on both sides of the fixed housing, and a lifting display assembly installed between the two primary lifting sliders. The lifting display assembly includes a display panel mounted on the front and secondary lifting sliders located on both sides of the display panel. A lifting motor is installed at the bottom of the fixed housing. This utility model allows for fast and convenient lifting and has improved adjustable height. However, because the lifting display is installed between the secondary lifting sliders on both sides, when the lifting display is raised to the top of the fixed housing, it cannot be adjusted during vehicle start-up, braking, or operation. In windy conditions, the stability of the lifting display screen is affected, making it unable to withstand significant impact. Furthermore, this invention uses ropes for lifting and lowering. A lifting motor drives a winding roller with a lifting rope, pulling the rope forward through a first, bottom, and top fixed pulley to the bottom of the display screen assembly, thus lifting it. Reversing the motor releases the rope synchronously from both sides, causing the display screen assembly to gradually descend under its own weight. The first-stage lifting slider also descends, ultimately retracting the entire display screen assembly and the first-stage lifting slider, completing the second-stage lifting operation. Clearly, this lifting mechanism is complex, has low strength, is cumbersome to operate, and has low reliability.

[0004] The invention disclosed in application number CN201811068026.4 (authorization publication number CN109159744B) is "A Multi-Dimensionally Adjustable Vehicle-Mounted LCD Smart Display Screen". This invention provides a technical inspiration for using channel steel as a vertical guide rail, and through the vertical guide rail assembly and sliding support plate, the height of the display screen can be adjusted up and down. The side plate of the channel steel has an inner buckle at the groove end, which can further limit the sliding support plate and effectively prevent shaking during sliding, making the height adjustment more stable. However, this invention has a rack along the length of the bottom plate of the channel steel and a traveling gear on the sliding support plate. The traveling gear works with the rack on the bottom plate of the channel steel to realize the automatic lifting and lowering of the sliding support plate to drive the height adjustment of the display screen. It also requires a traveling gear locking device to lock the traveling gear after the height adjustment is completed and fix the position of the display screen. It can be seen that this invention also has the problems of complex structure, cumbersome operation and low reliability. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a vehicle-mounted lifting LED warning screen that is simple in structure, highly reliable, can be installed in the vehicle and effectively improve the height of adjustment, and can withstand greater impact when there is strong wind during vehicle start-up, braking or operation, thus ensuring the stability of the lifting display screen.

[0006] The technical solution adopted by this utility model includes a mounting base plate, on which lifting guide rails made of channel steel are symmetrically welded on the left and right sides. A push rod motor is mounted on the mounting base plate, and the top of the push rod of the push rod motor is connected to a display screen lifting frame. A display screen mounting frame is installed in the display screen lifting frame, and an LED display screen is installed in the display screen mounting frame. Moving rollers are connected to the display screen lifting frame with screws. A limiter for limiting the LED display screen is also installed at the lower end of the display screen lifting frame. A limit block is installed at the bottom of the display screen lifting frame. A fixed roller is installed on the outer side of the upper channel steel flange of each of the two lifting guide rails.

[0007] Support plates are welded to the outer surfaces of the lower channel steel webs of the two lifting guide rails on the mounting base plate. Supporting inclined beams are welded to the outer surfaces of the lower channel steel flanges of the two lifting guide rails on the mounting base plate and the support plates. Upper crossbeams are welded to the outer surfaces of the upper rear channel steel flanges of the two lifting guide rails.

[0008] The display screen lifting frame is welded together from an upper horizontal connecting plate and two left and right vertical connecting plates. The top of the push rod of the push rod motor is fixedly connected to the upper horizontal connecting plate of the lifting frame. Three movable rollers are connected to each of the left and right vertical connecting plates of the lifting frame with screws.

[0009] Two limiters for limiting the LED display screen are installed at the lower end of the left vertical connecting plate of the display screen lifting frame.

[0010] Several upper reinforcing ribs are welded on the upper horizontal connecting plate of the display screen lifting frame, and a dustproof cover plate is connected on the upper reinforcing ribs.

[0011] A battery box and a power supply rail for the LED display screen are mounted on the mounting base.

[0012] A control box is installed on the outer side of the left channel steel flange of the lifting guide rail.

[0013] Several bottom reinforcing ribs are welded to the bottom of the mounting base plate, and several connection holes for connecting with the engineering vehicle are provided on the mounting base plate and the bottom reinforcing ribs.

[0014] A lifting ring is also installed on the outer side of the channel steel web of the lifting guide rail.

[0015] Compared with the prior art, the beneficial effects of this utility model are: (1) The lifting mechanism of this utility model has a simple structure, high strength, easy operation and high reliability. When in use, it is installed on the chassis between the truck bed or the cab and the truck bed by bolts through the corresponding connecting holes of the mounting base plate and the bottom reinforcing rib plate. The LED display screen is raised by the push rod motor, and traffic information can be displayed with the vehicle.

[0016] (2) This utility model uses a push rod motor to drive the LED display screen to lift and lower, and uses channel steel to make the lifting guide rail. The moving rollers move up and down in the lifting guide rail under the drive of the push rod motor to realize the lifting and lowering of the LED display screen. The fixed rollers and limit blocks are used to assist the LED display screen in realizing vertical lifting and lowering. This allows the LED display screen to withstand greater impact during the starting, braking and running of the engineering vehicle, and improves the stability of the LED display screen when it is working.

[0017] (3) This utility model improves the lifting height of the LED display screen. The height of the LED display screen when it is raised is higher than that of the driver's cab. At the same time, it increases the visibility at a distance, the warning distance is farther, and it does not obstruct the view of the rear window, making it safe and reliable. Attached Figure Description

[0018] Figure 1 This is the front view of this utility model. Figure 2 yes Figure 1 Left view, Figure 3 yes Figure 1 Top view, Figure 4 yes Figure 3 AA section view, Figure 5 This is a front perspective view of the present invention. Figure 6 This is a schematic diagram of the display screen after it is raised when this utility model is in use.

[0019] In the picture: 1. Install the base plate. 2. Lifting guide rail, 3. Support plate, 4. Support the inclined beam, 5. Upper crossbeam, 6. Actuator motor, 6-1. Actuator, 7. Display screen lifting frame, 7-1. Upper horizontal connecting plate, 7-2. Vertical connecting plate, 8. Movable rollers, 9. LED display screen 10. Fix the rollers. 11. Limit switch, 12. Upper reinforcing rib plate, 13. Cover plate, 14. Battery box, 15. Linear guide rail 16. Control box, 17. Bottom reinforcing rib plate, 18. Rings 19. Display screen mounting frame, 20. Limiting block. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] like Figures 1 to 5As shown, the technical solution adopted by this utility model includes a mounting base plate 1. Lifting guide rails 2, made of channel steel, are symmetrically welded to the left and right sides of the mounting base plate 1. Support plates 3 are welded to the outer surfaces of the lower end channel steel webs of the two lifting guide rails 2 on the mounting base plate 1. Supporting inclined beams 4 are welded to the outer surfaces of the lower end channel steel flanges of the two lifting guide rails 2 on the mounting base plate 1 and to the support plates 3. In other words, the supporting inclined beams 4 are simultaneously welded to the outer surfaces of the lower end channel steel flanges of the lifting guide rails 2 and to the support plates 3. An upper crossbeam 5 is welded to the outer surface of the rear channel steel flange at the upper end of the two left and right lifting guide rails 2. The arrangement of the support plate 3, the support inclined beam 4, and the upper crossbeam 5 ensures that the two left and right lifting guide rails 2 are stably perpendicular to the mounting base plate 1. A push rod motor 6 is installed on the mounting base plate 1. The top end of the push rod 6-1 of the push rod motor 6 is connected to the display screen lifting frame 7. A display screen mounting frame 19 is installed in the display screen lifting frame 7, and an LED display screen 9 is installed in the display screen mounting frame 19. Furthermore, the display screen lifting frame 7 is connected by an upper horizontal connecting plate. The lifting frame 7 is constructed by welding together 7-1 and two vertical connecting plates 7-2 on the left and right. The top end of the push rod 6-1 of the push rod motor 6 is fixedly connected to the horizontal connecting plate 7-1 at the upper end of the lifting frame 7. Three movable rollers 8 are screwed onto each of the two vertical connecting plates 7-2 on the left and right sides of the lifting frame 7. Driven by the push rod motor 6, the movable rollers 8 can move up and down along the lifting guide rail 2, achieving the purpose of raising and lowering the LED display screen 9 within the lifting guide rail 2. Limiting blocks 20 are installed at the bottom of the two lifting frames 7 on the left and right sides. Each of the upper channel steel flanges is equipped with a fixed roller 10. During use, the fixed roller 10 cooperates with the limiting block 20 to assist the LED display screen 9 in vertical lifting and lowering, preventing the LED display screen 9 from swaying left and right during vehicle start-up, braking, or operation. Two limiters 11 are also installed at the lower end of the left vertical connecting plate 7-2 of the display screen lifting frame 7 to limit the movement of the LED display screen 9. Several upper reinforcing ribs 12 are welded to the upper horizontal connecting plate 7-1 of the display screen lifting frame 7. A dustproof cover plate 13 is connected to the top; a battery box 14 and a linear rail 15 for powering the LED display screen 9 are installed on the top of the mounting base plate 1; a control box 16 is installed on the outer side of the left channel steel flange of the lifting guide rail 2; several bottom reinforcing ribs 17 are welded to the bottom of the mounting base plate 1; several connection holes 1-1 for connecting with the engineering vehicle are correspondingly provided on the mounting base plate 1 and the bottom reinforcing ribs 17; and a lifting ring 18 is also installed on the outer side of the channel steel web of the lifting guide rail 2 to facilitate the installation of this utility model on the engineering vehicle.

[0022] like Figure 6As shown, in use, the present invention is hoisted onto a suitable position on the chassis between the cab and the truck bed of an engineering vehicle or the truck bed using the lifting ring 18. The present invention is then installed on the truck bed or the chassis between the cab and the truck bed using bolts through the corresponding connecting holes 1-1 of the mounting base plate 1 and the bottom reinforcing rib plate 17. This allows the present invention to display traffic information while in use. When the road needs to be temporarily closed due to various circumstances, on-site personnel can activate the push rod motor 6 to drive the push rod 6-1 of the push rod motor 6, raising the LED display screen 9. The fixed rollers 10 on the outer side of the channel steel flanges of the two left and right lifting guide rails 2, in cooperation with the limiting blocks 20, prevent the LED display screen 9 from swaying left and right during vehicle start-up, braking, or operation. At this time, the height of the LED display screen 9 is higher than the cab, increasing the overhead space and improving long-distance visibility without obstructing the rearview window view. Then, by operating the control system in the control box 16, audible and visual warnings and alarms can be implemented to warn passing vehicles to slow down, prevent accidental collisions or incursions, and notify on-site personnel to avoid the area.

Claims

1. A vehicle-mounted lifting LED warning screen comprising a mounting base plate (1), lifting guide rails (2) made of channel steel symmetrically welded on the left and right sides of the mounting base plate (1), characterized in that, A push rod motor (6) is installed on the mounting base plate (1). The top of the push rod (6-1) of the push rod motor (6) is connected to the display screen lifting frame (7). A display screen mounting frame (19) is installed in the display screen lifting frame (7). An LED display screen (9) is installed in the display screen mounting frame (19). A movable roller (8) is connected to the lifting frame (7) with screws. A limiter (11) for limiting the LED display screen (9) is also installed at the lower end of the display screen lifting frame (7). Limit blocks (20) are installed at the bottom of the left and right two display screen lifting frames (7). A fixed roller (10) is installed on the outer side of the upper channel steel flange of each of the left and right two lifting guide rails (2).

2. The vehicle-mounted lifting LED warning screen according to claim 1, wherein, Support plates (3) are welded to the outer side of the lower end channel steel web of the two lifting guide rails (2) on the mounting base plate (1). Supporting inclined beams (4) are welded to the outer side of the lower end channel steel flange of the two lifting guide rails (2) on the mounting base plate (1) and to the support plates (3). Upper crossbeams (5) are welded to the outer side of the upper rear channel steel flange of the two lifting guide rails (2).

3. The vehicle-mounted lifting LED warning screen according to claim 1 or 2, characterized in that, The display screen lifting frame (7) is welded together from an upper horizontal connecting plate (7-1) and two left and right vertical connecting plates (7-2). The top of the push rod (6-1) of the push rod motor (6) is fixedly connected to the upper horizontal connecting plate (7-1) of the lifting frame (7). Three movable rollers (8) are connected to the left and right vertical connecting plates (7-2) of the lifting frame (7) with screws.

4. The vehicle-mounted lifting LED warning screen according to claim 3, characterized in that, Two limiters (11) for limiting the LED display screen (9) are installed at the lower end of the left vertical connecting plate (7-2) of the display screen lifting frame (7).

5. The vehicle-mounted lifting LED warning screen according to claim 3, characterized in that, Several upper reinforcing ribs (12) are welded on the upper horizontal connecting plate (7-1) at the upper end of the display screen lifting frame (7), and a dustproof cover plate (13) is connected on the upper reinforcing ribs (12).

6. The vehicle-mounted lifting LED warning screen according to claim 3, characterized in that, A battery box (14) and a power supply rail (15) for the LED display screen (9) are mounted on the mounting base plate (1).

7. The vehicle-mounted lifting LED warning screen according to claim 3, characterized in that, A control box (16) is installed on the outer side of the left channel steel flange of the lifting guide rail (2).

8. The vehicle-mounted lifting LED warning screen according to claim 3, characterized in that, Several bottom reinforcing ribs (17) are welded to the bottom of the mounting base plate (1), and several connection holes (1-1) for connecting with the engineering vehicle are provided on the mounting base plate (1) and the bottom reinforcing ribs (17).

9. The vehicle-mounted lifting LED warning screen according to claim 3, characterized in that, A lifting ring (18) is also installed on the outer side of the channel steel web of the lifting guide rail (2).

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