Trailer type lifting folding screen

Abstract

The utility model relates to the technical field of folding screens, and discloses a trailer type lifting folding screen which comprises a bottom plate, a plurality of screen dragging seats are installed on the left side and the right side of the upper surface of the bottom plate from front to back, and a left-right moving mechanism is arranged on the left side and the right side of the upper surface of the bottom plate and located behind the screen dragging seat on the rearmost side. A front-back moving mechanism is installed at the upper end of the left-right moving mechanism, and a multi-stage telescopic rod is installed at the upper end of the front-back moving mechanism. The front-back moving mechanism and the multi-stage telescopic rod are matched with each other to drive the front LED screen body and the rear LED screen body to be folded together from top to bottom, the four LED screen bodies are fixed together through the butt joint blocks and the butt joint bolts, the left-right moving mechanism drives the four LED screen bodies which are fixed together on the left side and the right side to be attached to each other, and therefore unfolding of the folding screen is completed. The folding screen in the folding state is divided into a plurality of parts, and the passing performance of the folding screen is good at entrances and exits with limited heights of indoor sites.

Description

Technical Field

[0001] The utility model relates to the technical field of folding screens, in particular to a trailer-type lifting folding screen. Background Art

[0002] Driven by market demand, the market demand for movable LED screens is increasing, and the market demand for mobile LED screens is increasing, with the trend towards more refined products, more convenient use and stronger applicability.

[0003] Existing trailer screen solutions, such as a new type of flip LED screen advertising vehicle disclosed in a Chinese patent (authorization announcement number CN204010614U), divide the screen into two sections, and cannot compress the length and height of the vehicle body carrying the screen. The trailer is relatively high, and its passing performance is poor for some indoor venues with limited height entrances and exits. Utility Model Content

[0004] The purpose of the utility model is to provide a trailer-type lifting folding screen to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A trailer-type lifting folding screen comprises a bottom plate, a trailer is installed on the lower surface of the bottom plate, a plurality of screen-dragging seats are installed on the left and right sides of the upper surface of the bottom plate from the front to the back, and left and right moving mechanisms are arranged on the left and right sides of the upper surface of the bottom plate behind the rearmost screen-dragging seats, a front-back moving mechanism is installed on the upper end of the left and right moving mechanism, a multi-stage telescopic rod is installed on the upper end of the front-back moving mechanism, a first fixing plate and a second fixing plate are installed on the upper ends of the multi-stage telescopic rods on the left and right sides respectively, and an LED screen body is installed inside the screen-dragging seats and at the front ends of the first fixing plate and the second fixing plate;

[0007] A plurality of docking grooves are provided on both upper and lower sides of the front surface of the LED screen body, and docking holes are provided inside the docking grooves.

[0008] As a further solution of the utility model: the left-right moving mechanism comprises a first support plate, a first slide groove is provided on the upper surface of the first support plate, and first support blocks are installed at both left and right ends of the upper surface of the first support plate, a first motor is installed on the left surface of the first support block on the left side, a first threaded rod is installed at the output end of the first motor, and a first slider is connected to the outer thread of the first threaded rod;

[0009] The forward and backward moving mechanism includes a second support plate, a second slide groove is opened on the upper surface of the second support plate, and second support blocks are installed at both front and rear ends of the upper surface of the second support plate, a second motor is installed on the rear surface of the second support block on the rear side, a second threaded rod is installed at the output end of the second motor, and the external thread of the second threaded rod is connected to the second sliding block.

[0010] As a further solution of the utility model: the first support plate is installed on the upper surface of the base plate, the right end of the first threaded rod is rotatably connected to the first support block on the right side, and the lower end of the first sliding block is slidably connected to the inside of the first sliding groove.

[0011] As a further solution of the utility model: the second support plate is installed on the upper end of the first slider, the front end of the second threaded rod is rotatably connected to the front second support block, and the lower end of the second slider is slidably connected to the inside of the second slide groove.

[0012] As a further solution of the present invention: the first motor and the second motor are both electrically connected to an external control system.

[0013] As a further solution of the utility model: the lower end of the multi-stage telescopic rod is installed on the upper end of the second sliding block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model is provided with a left-right moving mechanism, a front-back moving mechanism and a multi-stage telescopic rod; the cooperation between the front-back moving mechanism and the multi-stage telescopic rod can drive the front and rear four LED screens to fold together from top to bottom, the docking block and the docking bolt fix the four LED screens together, and the left-right moving mechanism drives the four LED screens fixed on the left and right sides to fit together, thereby completing the unfolding of the folding screen; the folding screen of the utility model in the folded state is divided into multiple parts, which can compress the length and height of the vehicle body carrying the screen, and the height of the folding screen in the folded state is relatively low, and its passing performance is better at some entrances and exits with limited height in indoor venues. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a trailer-type lifting folding screen;

[0017] Figure 2 It is a partial exploded view of a trailer-type lifting folding screen;

[0018] Figure 3 for Figure 1 A magnified view of middle;

[0019] Figure 4 It is a schematic diagram of the unfolded state of a trailer-type lifting folding screen;

[0020] Figure 5 for Figure 4 Enlarged view of B.

[0021] In the figure: 1. bottom plate; 2. trailer; 3. screen holder; 4. left-right moving mechanism; 5. first support plate; 6. first slide groove; 7. first support block; 8. first motor; 9. first threaded rod; 10. first slider; 11. front-back moving mechanism; 12. second support plate; 13. second slide groove; 14. second support block; 15. second motor; 16. second threaded rod; 17. second slider; 18. multi-stage telescopic rod; 19. first fixed plate; 20. second fixed plate; 21. LED screen body; 22. docking groove; 23. docking hole; 24. docking block; 25. docking bolt. DETAILED DESCRIPTION

[0022] See also Figures 1 to 5 In the embodiment of the utility model, a trailer-type lifting folding screen includes a bottom plate 1, a trailer 2 is installed on the lower surface of the bottom plate 1, and a plurality of trailer screen seats 3 are installed on the left and right sides of the upper surface of the bottom plate 1 from front to back;

[0023] A left-right moving mechanism 4 is arranged on the left and right sides of the upper surface of the bottom plate 1 behind the rearmost screen dragging seat 3. The left-right moving mechanism 4 includes a first support plate 5, which is installed on the upper surface of the bottom plate 1. A first slide groove 6 is provided on the upper surface of the first support plate 5, and first support blocks 7 are installed on both left and right ends of the upper surface of the first support plate 5. A first motor 8 is installed on the left surface of the left first support block 7. A first threaded rod 9 is installed on the output end of the first motor 8. The right end of the first threaded rod 9 is rotatably connected to the right first support block 7. The external thread of the first threaded rod 9 is connected to a first slider 10, and the lower end of the first slider 10 is slidably connected to the inside of the first slide groove 6.

[0024] A front-to-back moving mechanism 11 is installed at the upper end of the left-right moving mechanism 4. The front-to-back moving mechanism 11 includes a second support plate 12. The second support plate 12 is installed on the upper end of the first slider 10. A second slide groove 13 is provided on the upper surface of the second support plate 12. Second support blocks 14 are installed at both the front and rear ends of the upper surface of the second support plate 12. A second motor 15 is installed on the rear surface of the rear second support block 14. The first motor 8 and the second motor 15 are both electrically connected to an external control system for automatic operation. A second threaded rod 16 is installed at the output end of the second motor 15. The front end of the second threaded rod 16 is rotatably connected to the front second support block 14. The external thread of the second threaded rod 16 is connected to a second slider 17. The lower end of the second slider 17 is slidably connected to the inside of the second slide groove 13.

[0025] A multi-stage telescopic rod 18 is installed at the upper end of the forward and backward moving mechanism 11, and the lower end of the multi-stage telescopic rod 18 is installed on the upper end of the second slider 17. The upper ends of the multi-stage telescopic rods 18 on the left and right sides are respectively installed with a first fixing plate 19 and a second fixing plate 20. The interior of the screen dragging seat 3 and the front ends of the first fixing plate 19 and the second fixing plate 20 are all installed with an LED screen body 21. The front surface of the LED screen body 21 is provided with a plurality of docking grooves 22 on both upper and lower sides, and the interior of the docking grooves 22 is provided with docking holes 23;

[0026] The left end of the trailer 2 is provided with an adjustable support leg. When the adjustable support leg touches the ground, the entire trailer 2 cannot move. When the adjustable support leg does not touch the ground, the left end of the trailer 2 is connected to a vehicle, and the entire trailer 2 can be moved by wheels.

[0027] There are three screen holders 3 on the left side, and there are three screen holders 3 on the right side. The LED screen body 21 connected to the front end of the first fixing plate 19 is aligned with the LED screen body 21 inside the left screen holder 3, and the LED screen body 21 connected to the front end of the second fixing plate 20 is aligned with the LED screen body 21 inside the right screen holder 3.

[0028] The multi-stage telescopic rod 18 is a servo electric telescopic rod, which is electrically connected to an external control system for automatic operation;

[0029] The left side left-right moving mechanism 4 and the front-back moving mechanism 11 can drive the four LED screens 21 on the left side to be stacked together, and the right side left-right moving mechanism 4 and the front-back moving mechanism 11 can drive the four LED screens 21 on the right side to be stacked together;

[0030] Whenever one LED screen 21 is stacked on top of another LED screen 21, the docking grooves 22 on the two LED screens 21 are aligned, and the docking block 24 can be placed inside the two docking grooves 22, and then the docking bolt 25 is passed through the docking block 24 and screwed into the docking hole 23, so as to fix the upper and lower LED screens 21 together.

[0031] The working principle of the utility model is as follows: when in use, the staff opens the multi-stage telescopic rod 18, and the first fixing plate 19 and the second fixing plate 20 both drive an LED screen body 21 to rise above the front LED screen body 21. At this time, the lower surface of the upper LED screen body 21 is flush with the upper surface of the lower LED screen body 21, and the second motor 15 drives the second threaded rod 16 to rotate, and the second slider 17 threadedly connected with the second threaded rod 16 will move forward, driving the upper LED screen body 21 to be located directly above the lower LED screen body 21, and the two LED screen bodies 21 are fitted together, and the staff places the docking block 24 inside the two docking grooves 22, and then passes the docking bolt 25 through the docking block 24 and screws it into the docking hole 23, thereby fixing the upper and lower LED screen bodies 21 together; then, the multi-stage telescopic rod 18 drives the two LED screen bodies 21 fixed together to rise above the front LED screen body 21, and the second motor 15 drives the two LED screen bodies 21 fixed together to be located directly above the front LED screen body 21, and fixes them again with the docking block 24, The three LED screen bodies 21 are fixed together; then, the multi-stage telescopic rod 18 drives the three LED screen bodies 21 fixed together to rise above the front LED screen body 21, and the second motor 15 drives the three LED screen bodies 21 fixed together to be located directly above the front LED screen body 21, and is fixed again with the docking block 24, so that the four LED screen bodies 21 are fixed together; at this time, the multi-stage telescopic rod 18 drives the four LED screen bodies 21 to rise, so that the lowermost LED screen body 21 is separated from the screen holder 3; the left first motor 8 drives the left first slider 10 to move a distance to the left, and the right first motor 8 drives the right first slider 10 to move a distance to the right, so that the right side surface of the left LED screen body 21 and the left side surface of the right LED screen body 21 are located on the same plane, the left second motor 15 drives the LED screen body 21 to move forward a distance, and the right second motor 15 drives the LED screen body 21 to move backward a distance, at this time, the left LED screen body 21 and the right LED screen body 21 are attached to each other, thereby completing the unfolding of the folding screen.

[0032] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A trailer-type lifting folding screen, comprising a bottom plate (1), a trailer (2) being mounted on the lower surface of the bottom plate (1), It is characterized in that A plurality of screen-drawing seats (3) are installed on both left and right sides of the upper surface of the bottom plate (1) from front to back, and left and right moving mechanisms (4) are arranged on both left and right sides of the upper surface of the bottom plate (1) behind the rearmost screen-drawing seat (3), a front-back moving mechanism (11) is installed on the upper end of the left and right moving mechanism (4), a multi-stage telescopic rod (18) is installed on the upper end of the front-back moving mechanism (11), a first fixing plate (19) and a second fixing plate (20) are installed on the upper ends of the multi-stage telescopic rod (18) on the left and right sides, respectively, and an LED screen body (21) is installed inside the screen-drawing seat (3) and at the front ends of the first fixing plate (19) and the second fixing plate (20); A plurality of docking grooves (22) are provided on both upper and lower sides of the front surface of the LED screen body (21), and docking holes (23) are provided inside the docking grooves (22).

2. The trailer-type lifting folding screen according to claim 1, It is characterized in that The left-right moving mechanism (4) comprises a first support plate (5), the upper surface of the first support plate (5) is provided with a first slide groove (6), and first support blocks (7) are installed at both left and right ends of the upper surface of the first support plate (5), a first motor (8) is installed on the left surface of the first support block (7) on the left side, a first threaded rod (9) is installed at the output end of the first motor (8), and the outer thread of the first threaded rod (9) is connected to a first slider (10); The forward and backward moving mechanism (11) comprises a second support plate (12), the upper surface of the second support plate (12) is provided with a second slide groove (13), and second support blocks (14) are installed at both front and rear ends of the upper surface of the second support plate (12), a second motor (15) is installed on the rear surface of the second support block (14) at the rear side, a second threaded rod (16) is installed at the output end of the second motor (15), and the second threaded rod (16) is externally threadedly connected to a second slider (17).

3. The trailer-type lifting folding screen according to claim 2, It is characterized in that The first support plate (5) is mounted on the upper surface of the base plate (1), the right end of the first threaded rod (9) is rotatably connected to the first support block (7) on the right side, and the lower end of the first sliding block (10) is slidably connected to the inside of the first sliding groove (6).

4. The trailer-type lifting and folding screen according to claim 2, It is characterized in that The second support plate (12) is mounted on the upper end of the first slider (10), the front end of the second threaded rod (16) is rotatably connected to the front second support block (14), and the lower end of the second slider (17) is slidably connected to the inside of the second slide groove (13).

5. The trailer-type lifting and folding screen according to claim 2, It is characterized in that The first motor (8) and the second motor (15) are both electrically connected to an external control system.

6. The trailer-type lifting folding screen according to claim 2, It is characterized in that The lower end of the multi-stage telescopic rod (18) is mounted on the upper end of the second sliding block (17).

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