CN213207034U

CN213207034U - Liftable LED screen of upset

Info

Publication number: CN213207034U
Application number: CN202021710283.6U
Authority: CN
Inventors: 黄济; 蔡天雄; 张扬
Original assignee: Zhejiang Dafeng Industry Co Ltd
Current assignee: Zhejiang Dafeng Industry Co Ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-05-14
Anticipated expiration: 2030-08-17

Abstract

The utility model provides a liftable and turnable LED screen, which comprises a truss and an LED screen body hoisted on the truss, wherein two side ends of the LED screen body are respectively provided with a first pulling mechanism and a second pulling mechanism; first pulling mechanism includes preceding directive wheel and the rear steering wheel of interval setting on the truss, rotatable first ladder reel and first stay cord and the second stay cord of being connected with first ladder reel respectively, first stay cord and second stay cord are wire rope, the tip of first stay cord is walked around in proper order behind the support body of preceding directive wheel and LED screen body and is rewound fixedly in the front on the directive wheel, the second stay cord is walked around the rear steering wheel after-fixing at the lower extreme of support body, rotate through first ladder reel during the adjustment and make first stay cord and second stay cord lift the upset with LED screen body. The utility model provides a pair of LED screen of liftable upset has overcome the defect that current LED screen structure is complicated, with high costs and be not convenient for install.

Description

Liftable LED screen of upset

Technical Field

The utility model relates to a LED screen field especially relates to a LED screen of liftable upset.

Background

With the development of scientific technology and the continuous improvement of living standard, people have higher and higher requirements on the effect presented in the stage performance, especially pay more attention to the diversification of the performance presentation, provide better visual effect for an observer and enhance the artistry of programs. In order to enhance the visual effect, people often use the LED screen in stage performance, and the LED screen is increasingly applied to various theaters and multifunctional halls.

In order to conveniently adjust and store, the existing LED screen can be lifted or unfolded, but the existing LED screen mainly adopts a mechanical arm type multi-degree-of-freedom structure to complete the action, and the structure is complex, high in cost, high in civil engineering requirement, inconvenient to install and low in cost performance.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to solve the problem that a LED screen of liftable upset is provided to overcome current LED and screen the defect that the structure is complicated, with high costs and be not convenient for install.

(II) technical scheme

In order to solve the technical problem, the utility model provides a liftable and turnable LED screen, which comprises a truss and an LED screen body hoisted on the truss, wherein two side ends of the LED screen body are respectively provided with a first pulling mechanism and a second pulling mechanism; first pulling mechanism includes that the interval sets up preceding directive wheel and rear steering wheel, rotatable first ladder reel on the truss and respectively with first stay cord and the second stay cord that first ladder reel is connected, first stay cord with the second stay cord is wire rope, the tip of first stay cord is walked around in proper order preceding directive wheel with fix around after the support body of LED screen body on the preceding directive wheel, the second stay cord is walked around rear steering wheel after-fixing the lower extreme of support body, pass through during the adjustment first ladder reel rotates and makes first stay cord with the second stay cord will LED screen body goes up and down the upset. This LED screen sets up first pulling mechanism and second pulling mechanism and through the cooperation of preceding directive wheel, rear steering wheel, first step reel, first stay cord and second stay cord, and first step reel rotates and drives the different strokes of first stay cord and second stay cord pulling respectively to realize the lift upset action of LED screen, overall structure is simple, low in manufacturing cost, simple to operate, easy operation.

Furthermore, the back of the frame body is provided with an upper pulley and a lower pulley respectively, and the end part of the first pull rope sequentially bypasses the front steering wheel, the upper pulley, the lower pulley and the frame body and then is wound back and fixed on the front steering wheel. Wherein, the back lower extreme of support body is provided with the counterweight. Through the cooperation that sets up upper pulley, lower pulley and counterweight, can make the focus that lifts by crane the position and LED screen keep unanimous, make the structure more stable, the function is more reliable.

Further, a first guide wheel set and a second guide wheel set are respectively arranged between the first step winding drum and the front steering wheel of the truss. The first step winding drum comprises a first round table and a second round table, the diameter of the first round table is larger than that of the second round table, one end of the second pull rope is fixed to the outer circumferential surface of the first round table, and one end of the first pull rope is fixed to the outer circumferential surface of the second round table.

Further, the first pulling mechanism and the second pulling mechanism are identical in structure. The second pulling mechanism comprises a second step winding drum which is rotatably arranged on the truss, and the truss is provided with a motor; one end of the motor output shaft is connected with the second step winding drum, and the other end of the motor output shaft is connected with the first step winding drum through a transmission shaft. One end of the first pull rope is fixedly connected with the front steering wheel through a rope connecting piece, and one end of the second pull rope is fixedly connected with the frame body through a rope connecting piece.

(III) advantageous effects

The utility model provides a liftable LED screen that overturns sets up first pulling mechanism and second pulling mechanism and through the cooperation of front directive wheel, rear directive wheel, first step reel, first stay cord and second stay cord, the rotation of first step reel drives first stay cord and second stay cord respectively and stimulates different strokes to realize the lifting and overturning action of LED screen, overall structure is simple, low in manufacturing cost, convenient to install, easy operation; the lifting position can be consistent with the gravity center of the LED screen by arranging the matching of the upper pulley, the lower pulley and the counterweight, so that the structure is more stable and the function is more reliable; the upper pulley and the lower pulley are movable pulleys, so that the tension of the first pull rope can be reduced, the labor is saved, and the service life is longer; the defects that the existing LED screen is complex in structure, high in cost and inconvenient to install are overcome.

Drawings

Fig. 1 is a schematic structural view of a liftable and turnable LED screen of the present invention;

fig. 2 is a schematic structural view of another viewing angle of the liftable and turnable LED screen of the present invention;

fig. 3 is a schematic diagram of a structure of a liftable and turnable LED screen of the present invention;

fig. 4 is a schematic diagram of a first step drum of a liftable and turnable LED screen of the present invention;

the corresponding part names for the various reference numbers in the figures are: 1. a truss; 2. an LED screen body; 3. a first pulling mechanism; 4. a second pulling mechanism; 5. a front steering wheel; 6. a rear steering wheel; 7. a first step winding drum; 8. a first pull cord; 9. a second pull cord; 10. a frame body; 11. an upper pulley; 12. a lower pulley; 13. a counterweight; 14. a first guide wheel set; 15. a second guide wheel set; 16. a first circular table; 17. a second circular table; 18. a second step reel; 19. a motor; 20. a drive shaft; 21. a rope connection member.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 4, the utility model provides a liftable LED screen of upset, including truss 1, hoist and mount LED screen body 2 on truss 1, the both sides end that LED screen body 2 is provided with first pulling mechanism 3 and second pulling mechanism 4 respectively. In order to refine the structure, the first pulling mechanism 3 and the second pulling mechanism 4 are identical in structure.

Referring to fig. 1 and 3, the first pulling mechanism 3 includes a front steering wheel 5 and a rear steering wheel 6 which are arranged on the truss 1 at intervals, a rotatable first step winding drum 7, and a first pulling rope 8 and a second pulling rope 9 which are respectively connected with the first step winding drum 7, the first pulling rope 8 and the second pulling rope 9 are both steel wire ropes, a frame body 10 is fixed on the LED screen body 2, an upper pulley 11 and a lower pulley 12 are respectively arranged on the back of the frame body 10, the end of the first pulling rope 8 sequentially bypasses the front steering wheel 5, the upper pulley 11, the lower pulley 12 and the frame body 10 and then fixedly winds back on the front steering wheel 5, and the second pulling rope 9 bypasses the rear steering wheel 6 and then is fixedly arranged at the lower end of the frame body 10. Wherein, one end of the first pull rope 8 is fixedly connected with the front steering wheel 5 through a rope connecting piece 21, and one end of the second pull rope 9 is fixedly connected with the frame body 10 through the rope connecting piece 21.

In order to make the structure more stable, the lower end of the back of the frame body 10 is provided with a weight 13. The LED screen has two states, wherein the vertical state is the working state, and the inclined state is the collection state when the LED screen is placed on the upper space. During vertical state, LED screen body 2 mainly carries out the atress through first stay cord 8, because LED screen body 2 dead weight is bigger, the focus of whole support body 10 can be close LED screen body 2's position, is equipped with counterweight 13 in the lower part of support body 10, can shift backward holistic focus, and then can keep unanimous with the focus position through preceding directive wheel 5 with the position of lifting by crane of first stay cord 8 as far as possible.

Referring to fig. 1 and 2, the truss 1 is provided with a first guide wheel set 14 and a second guide wheel set 15 between the first step winding drum 7 and the front steering wheel 5, respectively, so as to facilitate the pulling of the first pulling rope 8 and the second pulling rope 9. Referring to fig. 4, the first step winding drum 7 includes a first circular table 16 and a second circular table 17, the diameter of the first circular table 16 is larger than that of the second circular table 17, one end of the second pull rope 9 is fixed on the outer circumferential surface of the first circular table 16, and one end of the first pull rope 8 is fixed on the outer circumferential surface of the second circular table 17; because the diameter of the first round table 16 is larger than that of the second round table 17, the pulling stroke of the second pull rope 9 is larger than that of the first pull rope 8.

Referring to fig. 2, the second pulling mechanism 4 includes a second step winding drum 18 rotatably mounted on the truss 1, and a motor 19 is mounted on the truss 1; one end of the output shaft of the motor 19 is connected to the second step winding drum 18, and the other end is connected to the first step winding drum 7 through a transmission shaft 20.

During the adjustment, motor 19 drives first step reel 7 and second step reel 18 and rotates together, and first step reel 7 and second step reel 18 drive first stay cord 8 and the pulling of second stay cord 9 on it simultaneously and make first stay cord 8 and the different stroke of the pulling of second stay cord 9 to realize the lift upset of LED screen body 2.

The LED screen capable of being lifted and turned over provided by the embodiment has the advantages of simple overall structure, low manufacturing cost, convenience in installation and simplicity in operation; the lifting mechanism is characterized in that a first pulling mechanism and a second pulling mechanism are arranged, the first pulling mechanism and the second pulling mechanism are matched through a front steering wheel, a rear steering wheel, a first step winding drum, a first pull rope and a second pull rope, the first step winding drum rotates to respectively drive the first pull rope and the second pull rope to pull different strokes so as to realize the lifting and overturning actions of the LED screen, and the lifting position can be consistent with the gravity center of the LED screen through the matching of an upper pulley, a lower pulley and a counterweight, so that the structure is more stable, and the function is more reliable; the upper pulley and the lower pulley are movable pulleys, so that the tension of the first pull rope can be reduced, the labor is saved, and the service life is longer.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a LED screen of liftable upset which characterized in that: the LED screen comprises a truss (1) and an LED screen body (2) hung on the truss (1), wherein a first pulling mechanism (3) and a second pulling mechanism (4) are respectively arranged at two side ends of the LED screen body (2); first pulling mechanism (3) are in including the interval preceding directive wheel (5) and back directive wheel (6), rotatable first ladder reel (7) on truss (1) and respectively with first stay cord (8) and second stay cord (9) that first ladder reel (7) are connected, the tip of first stay cord (8) is walked around in proper order preceding directive wheel (5) with it fixes to wind back behind support body (10) of LED screen body (2) on preceding directive wheel (5), second stay cord (9) are walked around back directive wheel (6) the after-fixing the lower extreme of support body (10), pass through during the adjustment first ladder reel (7) rotate and make first stay cord (8) with second stay cord (9) will LED screen body (2) go up and down the upset.

2. The liftable LED screen of claim 1, characterized in that: the back of support body (10) is provided with upper pulley (11) and lower pulley (12) respectively, the tip of first stay cord (8) is walked around in proper order preceding directive wheel (5), upper pulley (11) lower pulley (12) with the support body (10) back is around fixing on preceding directive wheel (5).

3. The liftable LED screen of claim 1, characterized in that: the lower end of the back of the frame body (10) is provided with a counterweight (13).

4. The liftable LED screen of claim 1, characterized in that: a first guide wheel set (14) and a second guide wheel set (15) are respectively arranged between the first step winding drum (7) and the front steering wheel (5) of the truss (1).

5. The liftable LED screen of claim 1, characterized in that: the first step winding drum (7) comprises a first circular table (16) and a second circular table (17), the diameter of the first circular table (16) is larger than that of the second circular table (17), one end of a second pull rope (9) is fixed to the outer circumferential surface of the first circular table (16), and one end of a first pull rope (8) is fixed to the outer circumferential surface of the second circular table (17).

6. The liftable LED screen of claim 1, characterized in that: the first pulling mechanism (3) and the second pulling mechanism (4) are identical in structure.

7. The liftable LED screen of claim 1, characterized in that: the second pulling mechanism (4) comprises a second step winding drum (18) rotatably mounted on the truss (1), and a motor (19) is mounted on the truss (1); one end of an output shaft of the motor (19) is connected with the second step winding drum (18), and the other end of the output shaft of the motor is connected with the first step winding drum (7) through a transmission shaft (20).

8. The liftable LED screen of claim 1, characterized in that: one end of the first pull rope (8) is fixedly connected with the front steering wheel (5) through a rope connecting piece (21), and one end of the second pull rope (9) is fixedly connected with the frame body (10) through the rope connecting piece (21).

9. The liftable LED screen of turning over of any claim 1 to 8, characterized in that: the first pull rope (8) and the second pull rope (9) are both steel wire ropes.