Anti-falling LED rolling screen

Abstract

The invention discloses an anti-falling LED rolling screen which comprises a first fixing support, a second fixing support, a roller and a rotating inner shaft. The first fixing support and the second fixing support are oppositely arranged, and a rotation driving mechanism is further installed on the first fixing support. The interior of the roller is of an axial hollow structure, and one end of the roller is connected with a rotary driving mechanism; the roller is further provided with a screen rolling module which can be bent and wound on the roller. A cable spirally penetrates through the center of the roller, the problem that normal use of the screen is affected due to the fact that the cable is pulled in the rolling and stretching process of the rolling screen is effectively solved, meanwhile, the compactness and attractiveness of the overall structure can be improved, in addition, an anti-falling device is arranged, the problem that the rolling screen accidentally falls due to stalling of the rolling screen can be solved, and the service life of the rolling screen is prolonged. And the use safety of the scroll screen is improved.

Description

Technical Field

[0001] The invention relates to the technical field of display screens, and in particular to an anti-falling LED rolling screen. Background Art

[0002] With the continuous development of science and technology, LED display screens have gradually become an important tool for information display due to their excellent display effects and wide application scenarios. However, most traditional LED display screens are fixed structures, lacking flexibility and portability. In recent years, rolling screens, as a new type of display device, have attracted widespread attention in the market because they can be rolled up and stored, greatly improving space utilization and ease of use.

[0003] However, the existing rolling screens still have some problems in actual use. First, the cable arrangement of the traditional rolling screen is relatively complicated. The cables are usually introduced from the outside and are easily pulled during the curling and stretching process, causing cable damage or poor contact, affecting the normal use of the screen. Secondly, if the rolling screen stalls or falls accidentally during operation, the lack of effective protective measures may cause damage to the screen or even cause a safety accident. In addition, the structural design of the traditional rolling screen is not compact enough, occupies a large space, and is inconvenient to install and disassemble, so it needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a fall-proof LED roll-up screen, which spirally passes the cable through the center of the drum, effectively avoiding the problem of the cable being pulled during the curling and stretching of the roll-up screen, thereby affecting the normal use of the screen. At the same time, it can also improve the compactness and aesthetics of the overall structure. In addition, a fall arrester is also provided to avoid the problem of accidental falling of the roll-up screen due to stalling of the roll-up screen, thereby improving the safety of the use of the roll-up screen.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] A fall-proof LED rolling screen comprises a first fixed bracket, a second fixed bracket, a roller, and a rotating inner shaft; the first fixed bracket and the second fixed bracket are arranged opposite to each other, and a rotating drive mechanism is also installed on the first fixed bracket; the interior of the roller is axially hollow, and one end of the roller is connected to the rotating drive mechanism; a rolling screen module that can be bent and wound around the roller is also installed on the roller; one end of the rotating inner shaft is rotationally connected to the second fixed bracket, and the other end of the rotating inner shaft is inserted into the roller from the other end of the roller; an anti-fall component connected to the rotating drive mechanism is also installed on the first fixed bracket, and the rotating drive mechanism is used to drive the roller to rotate, so as to drive the rolling screen module to curl or straighten.

[0007] Furthermore, a bearing disk is installed on each side of the first fixed bracket, and a first bearing is installed on each bearing disk; the anti-fall assembly includes an anti-fall connecting shaft and an anti-fall device; the anti-fall connecting shaft is arranged through the first fixed bracket, and the middle part of the anti-fall connecting shaft is connected to the two first bearings; the anti-fall device is installed on a side of the first fixed bracket away from the second fixed bracket, and the anti-fall device is connected to one end of the anti-fall connecting shaft.

[0008] Furthermore, the rotary drive mechanism includes a first fixed plate, a rotary drive motor, a rotary gear plate, and a first rotating shaft; the first fixed plate is installed on the other side of the first fixed bracket, the rotary drive motor is installed on the first fixed plate, and the output shaft of the rotary drive motor is also connected to a driving gear; the other end of the anti-fall connecting shaft is movable through the first fixed plate, the rotary gear plate is installed on the other end of the anti-fall connecting shaft, and a transmission chain is also wound between the rotary gear plate and the driving gear; one end of the first rotating shaft is connected to the other end of the anti-fall connecting shaft, and the other end of the first rotating shaft is inserted into the drum.

[0009] Furthermore, a bearing sleeve is installed on the second fixed bracket, and a second bearing is also installed on the bearing sleeve; the interior of the rotating inner shaft is axially hollow, one end of the rotating inner shaft is connected to the second bearing, and the other end of the rotating inner shaft is inserted into the drum.

[0010] Furthermore, the outer wall of the drum is connected to a plurality of connecting pieces, and one end of the rolling screen module is connected to the drum via the connecting pieces.

[0011] Furthermore, the roll-up screen module includes a connecting steel mesh and a plurality of display components spliced ​​together by the connecting steel mesh.

[0012] Furthermore, the connecting steel mesh is made of 65Mn spring steel.

[0013] Furthermore, it also includes a connecting pipe; there are multiple rollers, and the ends of adjacent rollers are connected to each other via the connecting pipe.

[0014] By adopting the above scheme, the beneficial effects of the present invention are:

[0015] The present invention spirally passes the cable through the center of the drum, thereby effectively avoiding the problem that the cable is pulled during the curling and stretching of the rolling screen, thereby affecting the normal use of the screen. At the same time, it can also improve the compactness and aesthetics of the overall structure. In addition, a fall arrester is also provided to avoid the problem of accidental falling of the rolling screen due to stalling of the rolling screen, thereby improving the safety of the use of the rolling screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the rotary drive mechanism of the present invention;

[0018] Figure 3 An exploded view of the rotary drive mechanism and the anti-falling assembly of the present invention;

[0019] Figure 4 It is an exploded view of the local structure of the present invention;

[0020] The accompanying drawings illustrate:

[0021] 1. First fixed bracket; 2. Second fixed bracket; 3. Roller; 4. Rotating inner shaft; 5. Rotating drive mechanism; 6. Rolling screen module; 7. Anti-fall assembly; 11. Bearing plate; 12. First bearing; 21. Bearing sleeve; 22. Second bearing; 31. Connecting piece; 32. Connecting pipe; 51. First fixed plate; 52. Rotating drive motor; 53. Rotating gear plate; 54. First rotating shaft; 55. Driving gear; 56. Transmission chain; 57. Falling power-off protection device; 71. Anti-falling connecting shaft; 72. Fall arrester. DETAILED DESCRIPTION

[0022] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Reference Figures 1 to 4 As shown, the present invention provides an anti-falling LED rolling screen. In one embodiment, it includes a first fixed bracket 1, a second fixed bracket 2, a roller 3, and a rotating inner shaft 4; the first fixed bracket 1 is arranged opposite to the second fixed bracket 2, and a rotating drive mechanism 5 is also installed on the first fixed bracket 1; the interior of the roller 3 is axially hollow, and one end of the roller 3 is connected to the rotating drive mechanism 5; a rolling screen module 6 that can be bent and wound around the roller 3 is also installed on the roller 3; one end of the rotating inner shaft 4 is rotatably connected to the second fixed bracket 2, and the other end of the rotating inner shaft 4 is inserted into the roller 3 from the other end of the roller 3; an anti-falling component 7 connected to the rotating drive mechanism 5 is also installed on the first fixed bracket 1, and the rotating drive mechanism 5 is used to drive the roller 3 to rotate, so as to drive the rolling screen module 6 to curl or straighten.

[0024] Continue to refer to Figures 1 to 4As shown, in this embodiment, the first fixing bracket 1 and the second fixing bracket 2 are both L-shaped, and a plurality of fixing holes are provided at the L-shaped horizontal ends of the first fixing bracket 1 and the second fixing bracket 2, and screws can be locked in the fixing holes to fix the rolling screen to the outside world; after the rolling screen is fixed at a suitable height, the rotary drive mechanism 5 can drive the roller 3 to rotate, so as to drive the rolling screen module 6 to change from a curled state to a straightened state, which can be used for display, and is convenient to use. After use, the rotary drive mechanism 5 drives the roller 3 to rotate in the opposite direction, so as to curl and wind the rolling screen module 6 onto the roller 3, and the storage can be completed. A fall arrester 72 is also provided to avoid the problem of accidental falling of the rolling screen due to stalling of the rolling screen, thereby improving the safety of the use of the rolling screen.

[0025] In this embodiment, the roll-up screen module 6 includes a connecting steel mesh and a number of display components spliced ​​together by the connecting steel mesh. The roll-up screen module 6 can directly use the existing display screen spliced ​​together by the connecting steel mesh, and this application does not limit this. Preferably, the connecting steel mesh of this application is made of 65Mn spring steel, which is a high-strength alloy steel with high yield strength and tensile strength. This material can effectively resist external forces while ensuring the structural strength of the display screen, and reduce deformation caused by collision or extrusion. At the same time, after quenching, 65Mn spring steel has good elasticity and fatigue resistance. Compared with traditional 304 stainless steel, 65Mn spring steel can withstand more cycles when repeatedly bent or folded without breaking easily). The connecting steel mesh made of 65Mn spring steel material only needs to be 0.15mm thick to reach the strength of the steel mesh made of stainless steel material before. While ensuring the strength, it significantly improves the folding resistance and deformation resistance of the display screen.

[0026] In addition, the outer wall of the drum 3 is also connected to a plurality of connecting pieces 31, and one end of the screen rolling module 6 is connected to the drum 3 via the connecting piece 31. The connecting piece 31 is a flexible arc-shaped structure, and one end of the connecting piece 31 is directly screwed to the outer wall of the drum 3, and one end of the screen rolling module 6 is connected to the other end of the connecting piece 31 via screws. In addition, a bearing sleeve 21 is installed on the second fixed bracket 2, and a second bearing 22 is also installed on the bearing sleeve 21; the interior of the rotating inner shaft 4 is an axially hollow structure, one end of the rotating inner shaft 4 is connected to the second bearing 22, and the other end of the rotating inner shaft 4 is inserted into the drum 3. The interiors of the drum 3 and the rotating inner shaft 4 are both axially hollow structures, and the cable can be spirally passed through the center of the drum 3, so that the wire will not be pulled when the screen is retracted.

[0027] In one embodiment, a bearing disk 11 is installed on each side of the first fixed bracket 1, and a first bearing 12 is installed on each bearing disk 11; the anti-fall component 7 includes an anti-fall connecting shaft 71 and an anti-fall device 72; the anti-fall connecting shaft 71 is arranged through the first fixed bracket 1, and the middle part of the anti-fall connecting shaft 71 is connected to the two first bearings 12; the anti-fall device 72 is installed on the side of the first fixed bracket 1 away from the second fixed bracket 2, and the anti-fall device 72 is connected to one end of the anti-fall connecting shaft 71. The anti-fall device 72 (the anti-fall device 72 is provided with a falling power-off protection device 57, which is connected in series with the rotating drive motor 52. After the anti-fall device 72 is locked, the power supply of the rotating drive motor 52 will be cut off to prevent the rotating drive motor 52 from locking, smoking and catching fire) can use existing anti-fall devices, and the present application does not limit this. In this embodiment, when the screen stalls more than 10 revolutions / min, the anti-fall device 72 will lock the motor to improve the safety of use; at the same time, the rotating drive mechanism 5 includes a first fixed plate 51, a rotating drive motor 52, a rotating gear plate 53, and a first rotating shaft 54; The first fixed plate 51 is installed on the other side of the first fixed bracket 1, the rotary drive motor 52 is installed on the first fixed plate 51, and the output shaft of the rotary drive motor 52 is also connected to the driving gear 55; the other end of the anti-falling connecting shaft 71 is movably arranged through the first fixed plate 51, the rotary gear plate 53 is installed on the other end of the anti-falling connecting shaft 71, and a transmission chain 56 is also wound between the rotary gear plate 53 and the driving gear 55; one end of the first rotating shaft 54 ​​is connected to the other end of the anti-falling connecting shaft 71, and the other end of the first rotating shaft 54 ​​is inserted into the drum 3. The rotary drive mechanism 5 adopts a gear and chain transmission method to ensure the stability of the rotation of the drum 3.

[0028] In one embodiment, a connecting pipe 32 is further included; the number of the rollers 3 is provided in plurality, and the ends of adjacent rollers 3 are connected to each other via the connecting pipe 32. The two ends of the connecting pipe 32 can be respectively inserted into a roller 3, and then screws are screwed into the corresponding holes to complete the splicing, so as to meet different usage requirements and have strong versatility.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-falling LED roll screen, characterized in that: It includes a first fixed bracket, a second fixed bracket, a roller, and a rotating inner shaft; the first fixed bracket is arranged opposite to the second fixed bracket, and a rotating drive mechanism is also installed on the first fixed bracket; the interior of the roller is axially hollow, and one end of the roller is connected to the rotating drive mechanism; a rolling screen module that can be bent and wound around the roller is also installed on the roller; one end of the rotating inner shaft is rotatably connected to the second fixed bracket, and the other end of the rotating inner shaft is inserted into the roller from the other end of the roller; an anti-fall component connected to the rotating drive mechanism is also installed on the first fixed bracket, and the rotating drive mechanism is used to drive the roller to rotate, so as to drive the rolling screen module to curl or straighten.

2. The anti-falling LED rolling screen according to claim 1, characterized in that: A bearing disk is installed on each side of the first fixed bracket, and a first bearing is installed on each bearing disk; the anti-fall assembly includes an anti-fall connecting shaft and an anti-fall device; the anti-fall connecting shaft is arranged through the first fixed bracket, and the middle part of the anti-fall connecting shaft is connected to two first bearings; the anti-fall device is installed on a side of the first fixed bracket away from the second fixed bracket, and the anti-fall device is connected to one end of the anti-fall connecting shaft.

3. The anti-falling LED rolling screen according to claim 2, characterized in that: The rotary drive mechanism includes a first fixed plate, a rotary drive motor, a rotary gear plate, and a first rotating shaft; the first fixed plate is installed on the other side of the first fixed bracket, the rotary drive motor is installed on the first fixed plate, and the output shaft of the rotary drive motor is also connected to a driving gear; the other end of the anti-fall connecting shaft is movable through the first fixed plate, the rotary gear plate is installed on the other end of the anti-fall connecting shaft, and a transmission chain is also wound between the rotary gear plate and the driving gear; one end of the first rotating shaft is connected to the other end of the anti-fall connecting shaft, and the other end of the first rotating shaft is inserted into the drum.

4. The anti-falling LED rolling screen according to claim 1, characterized in that: A bearing sleeve is installed on the second fixed bracket, and a second bearing is also installed on the bearing sleeve; the interior of the rotating inner shaft is axially hollow, one end of the rotating inner shaft is connected to the second bearing, and the other end of the rotating inner shaft is inserted into the drum.

5. The anti-falling LED rolling screen according to claim 1, characterized in that: The outer wall of the drum is also connected with a plurality of connecting pieces, and one end of the rolling screen module is connected to the drum via the connecting piece.

6. The anti-falling LED rolling screen according to claim 1, characterized in that: The roll-up screen module includes a connecting steel mesh and a plurality of display components spliced ​​together by the connecting steel mesh.

7. The anti-falling LED rolling screen according to claim 6, characterized in that: The connecting steel mesh is made of 65Mn spring steel.

8. The anti-falling LED rolling screen according to claim 1, characterized in that: It also includes a connecting pipe; the number of the rollers is multiple, and the ends of adjacent rollers are connected to each other via the connecting pipe.

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