CN220601173U

CN220601173U - LED screen lifting device

Info

Publication number: CN220601173U
Application number: CN202322362453.6U
Authority: CN
Inventors: 刘政军
Original assignee: Guangzhou Junnan Audiovisual Technology Co ltd
Current assignee: Guangzhou Junnan Audiovisual Technology Co ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2024-03-15
Anticipated expiration: 2033-08-31

Abstract

The utility model discloses an LED screen lifting device which is arranged on a wall, and comprises a track and a pulley block, wherein the track is provided with a plurality of groups and is arranged on the wall surface, the pulley block is provided with a plurality of groups and is arranged on the back surface of an LED screen, and the pulley block moves along the track; the rails extend upwards to the ceiling along the wall surface uniformly, the rails positioned on the ceiling are obliquely arranged, an unreeling motor is arranged between the two rails, the unreeling motor unreels a thin steel cable, and the end part of the thin steel cable is connected with the top of the LED screen; the ceiling is provided with an interlayer, and the LED screen can be contained in the interlayer. The screen of the LED screen can be stored at the top of the ceiling, so that the screen is prevented from being damaged.

Description

LED screen lifting device

Technical Field

The utility model relates to the technical field of LED screen assistance, in particular to an LED screen lifting device.

Background

In the prior art, LED screens are arranged in a common classroom. Compared with projection, the LED screen is clearer, but the LED screen is generally fixedly installed; hanging on one side of the blackboard or hiding behind the blackboard, the LED screen can be switched between the state of watching the LED screen and the state of using the blackboard by moving the blackboard. However, the LED screen is exposed, and students like to alarm, so that the screen of the LED screen is easily worn or broken.

Disclosure of Invention

In order to solve the defects caused by the prior art, the utility model provides the LED screen lifting device which can store the screen of the LED screen at the top of a ceiling to avoid being damaged.

In order to achieve the above object, the present utility model provides the following technical solutions: the LED screen lifting device is arranged on a wall and comprises a track and a pulley block, wherein the track is provided with a plurality of groups and is arranged on a wall surface, the pulley block is provided with a plurality of groups and is arranged on the back surface of an LED screen, and the pulley block moves along the track; the rails extend upwards to the ceiling along the wall surface uniformly, the rails positioned on the ceiling are obliquely arranged, an unreeling motor is arranged between the two rails, the unreeling motor unreels a thin steel cable, and the end part of the thin steel cable is connected with the top of the LED screen; the ceiling is provided with an interlayer, and the LED screen can be contained in the interlayer.

Preferably, the LED screen is placed in the rectangular frame, the connection point of the thin steel cable and the LED screen is located at the frame position of the rectangular frame, and the pulley block is also arranged at the frame position of the rectangular frame.

Preferably, the pulley block comprises a right-angle bracket and pulley bodies, wherein a supporting plate is arranged at the right angle part of the right-angle bracket towards the outer side, a rotating shaft is arranged on the supporting plate, two pulley bodies are arranged on the supporting plate, and the pulley bodies are symmetrically arranged at two ends of the rotating shaft; the rotating shaft is arranged on an angular bisector of the right-angle bracket.

Preferably, the lower edge opening of the interlayer is provided with rollers at two sides, the rollers are contacted with two side frames of the rectangular frame in the process that the LED screen enters the interlayer, the lower edge opening of the interlayer is provided with a fixed pulley at the middle position, the fixed pulley and the thin steel cable are in the same vertical plane, and the diameter of the rollers is larger than that of the fixed pulley.

Preferably, the pulley block is arranged at the contact position of the bottom of the rectangular frame and the wall surface.

Preferably, the rectangular frame comprises an outer frame and an inner frame, the pulley blocks and the thin steel ropes are arranged on the outer frame, the LED screen is arranged on the inner frame, the bottoms of the outer frame and the inner frame are hinged, and an electric telescopic rod is arranged between the outer frame and the inner frame.

The beneficial effects of adopting above technical scheme are: the LED screen lifting device with the structure can store the LED screen in the interlayer at the ceiling, is convenient for daily education activities, and also avoids damaging the screen of the LED screen; simultaneously, the inclination of the LED screen can be adjusted, so that students in front row can conveniently watch the LED screen.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the rectangular frame of the present utility model;

FIG. 3 is a schematic view of the structure of a track;

FIG. 4 is a schematic view of the pulley block structure at A in FIG. 1;

FIG. 5 is a schematic view of the structure of the roller and fixed pulley at the interlayer.

The device comprises a 1-track, a 2-pulley block, a 3-LED screen, a 4-ceiling, a 5-unreeling motor, a 6-thin steel rope, a 7-rectangular frame, an 8-interlayer, a 9-right angle bracket, a 10-supporting plate, an 11-pulley body, a 12-roller, a 13-fixed pulley, a 14-outer frame, a 15-inner frame and a 16-electric telescopic rod.

Detailed Description

Preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

Fig. 1-coating 5 shows a specific embodiment of the present utility model: the LED screen lifting device is arranged on a wall and comprises a track 1 and pulley blocks 2, wherein the track 1 is provided with a plurality of groups and is arranged on the wall surface, the pulley blocks 2 are provided with a plurality of groups and are arranged on the back surface of an LED screen 3, and the pulley blocks 2 move along the track 1; the rails 1 extend upwards to the ceilings 4 along the wall surface uniformly, the rails 1 positioned on the ceilings 4 are obliquely arranged, an unreeling motor 5 is arranged between the two rails 1, the unreeling motor 5 unreels a thin steel cable 6, and the end part of the thin steel cable 6 is connected with the top of the LED screen 3; the ceiling 4 is provided with an interlayer 8, and the LED screen 3 can be accommodated in the interlayer 8. The unreeling motor sets up two at least groups, through unreeling motor control thin cable, can make the LED screen follow the track in the interlayer decline to it hang on the wall, also can make the LED screen follow the track in the wall removes to the interlayer along the track, the screen of protection LED screen is not damaged in the non-use period.

The LED screen 3 is placed in the rectangular frame 7, the connection point of the thin steel cable 6 and the LED screen 3 is located at the frame position of the rectangular frame 7, the pulley block 2 is also arranged at the frame position of the rectangular frame 7, the relative connection structure is convenient to install in the rectangular frame, and how to install the LED screen in the rectangular frame is a conventional technology.

The pulley block 2 comprises a right-angle bracket 9 and pulley bodies 11, a supporting plate 10 is arranged at the right angle of the right-angle bracket 9 towards the outer side, a rotating shaft is arranged on the supporting plate 10, two pulley bodies 11 are arranged, and the pulley bodies are symmetrically arranged at two ends of the rotating shaft; the rotating shaft is arranged on an angular bisector of the right-angle bracket 9, and the pulley block 2 is arranged at the contact position of the bottom of the rectangular frame 7 and the wall surface. The track comprises a track on a wall surface and a track on a ceiling, and the pulley block structure and the pulley block at the bottom of the rectangular frame ensure that the track is prevented from being contacted with the track in the lifting process of the rectangular frame.

The lower edge opening of the interlayer 8 is provided with rollers 12 at two sides, the rollers 12 are contacted with two side frames of the rectangular frame 7 in the process that the LED screen 3 enters the interlayer 8, the lower edge opening of the interlayer 8 is provided with a fixed pulley 13 at the middle position, the fixed pulley 13 and the thin steel cable 6 are in the same vertical plane, and the diameter of the rollers 12 is larger than that of the fixed pulley 13. The roller plays a supporting role on the rectangular frame, the rectangular frame can conveniently and smoothly get in and out of the interlayer, the fixed pulley avoids the contact between the thin steel cable and the interlayer, and abrasion of the interlayer caused by friction is avoided.

The rectangular frame 7 comprises an outer frame 14 and an inner frame 15, the pulley blocks 2 and the thin steel ropes 6 are arranged on the outer frame 14, the LED screen 3 is arranged on the inner frame 15, the bottoms of the outer frame 14 and the inner frame are hinged, and an electric telescopic rod 16 is arranged between the outer frame 14 and the inner frame 15. The electric telescopic rod can adjust the inclination angle of the LED screen relative to the vertical plane, so that students sitting in front can watch the LED screen better.

The operation of whole device can be operated through the remote controller, and control module sets up in the separate layer for control unreel forward rotation or reversal of motor, and electric telescopic handle's flexible, is connected through the control line between control module and the unreel motor and between control module and the electric telescopic handle. And a socket is arranged in the interlayer and is used for supplying power to the unreeling motor, the electric telescopic rod and the LED screen.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and improvements could be made by those skilled in the art without departing from the inventive concept, which falls within the scope of the present utility model.

Claims

1. The LED screen lifting device is arranged on a wall and is characterized by comprising a plurality of groups of rails (1) and pulley blocks (2), wherein the plurality of groups of rails (1) are arranged on the wall surface, the plurality of groups of pulley blocks (2) are arranged on the back surface of an LED screen (3), and the pulley blocks (2) move along the rails (1); the rails (1) extend upwards to the ceilings (4) along the wall surface uniformly, the rails (1) positioned on the ceilings (4) are obliquely arranged, an unreeling motor (5) is arranged between the two rails (1) of the ceilings (4), the unreeling motor (5) unreels the thin steel ropes (6), and the end parts of the thin steel ropes (6) are connected with the tops of the LED screens (3); the ceiling (4) is provided with an interlayer (8), and the LED screen (3) can be contained in the interlayer (8).

2. The LED screen lifting device according to claim 1, characterized in that the LED screen (3) is placed in a rectangular frame (7), the connection point of the thin steel cable (6) and the LED screen (3) is located at the border position of the rectangular frame (7), and the pulley block (2) is also arranged at the border position of the rectangular frame (7).

3. The lifting device of the LED screen according to claim 1, wherein the pulley block (2) comprises a right-angle bracket (9) and pulley bodies (11), a supporting plate (10) is arranged at the right angle of the right-angle bracket (9) towards the outer side, rotating shafts are arranged on the supporting plate (10), and the pulley bodies (11) are symmetrically arranged at two ends of the rotating shafts; the rotating shaft is arranged on an angular bisector of the right-angle bracket (9).

4. The LED screen lifting device according to claim 2, wherein rollers (12) are arranged at two side positions of the lower edge opening of the interlayer (8), the rollers (12) are contacted with two side frames of the rectangular frame (7) in the process that the LED screen (3) enters the interlayer (8), fixed pulleys (13) are arranged at the middle positions of the lower edge opening of the interlayer (8), the fixed pulleys (13) and the thin steel cables (6) are arranged in the same vertical plane, and the wheel diameter of the rollers (12) is larger than that of the fixed pulleys (13).

5. A LED screen lifting device according to claim 3, characterized in that the pulley block (2) is arranged at the position where the bottom of the rectangular frame (7) is in contact with the wall surface.

6. LED screen lifting device according to claim 2, characterized in that the rectangular frame (7) comprises an outer frame (14) and an inner frame (15), the pulley block (2) and the thin steel cable (6) are arranged on the outer frame (14), the LED screen (3) is arranged on the inner frame (15), the outer frame (14) is hinged with the bottom of the inner frame, and an electric telescopic rod (16) is arranged between the outer frame (14) and the inner frame (15).