Adjustable Led large screen

Abstract

The utility model belongs to the technical field of large Led screens for exhibitions, particularly relates to an adjustable large Led screen, and aims to solve the problems that an existing large Led screen for exhibitions is formed by combining a plurality of screens, the distance and the position cannot be adjusted, and the display effect is poor, the scheme is that the adjustable large Led screen comprises a base, four ground feet are arranged at the bottom of the base, and the four ground feet are arranged on the base. A groove is formed in the bottom of the base, and a moving wheel mechanism is arranged in the groove; the plurality of display screen brackets are mounted at the top of the base, and guide rail grooves are formed in the plurality of display screen brackets; the display screens are provided with height adjusting mechanisms, the height adjusting mechanisms are connected with the corresponding guide rail grooves, the rear sides of the display screens are provided with mounting plates through screws, and the mounting plates are fixedly provided with sliding blocks. According to the utility model, a plurality of display screens can be driven to carry out position adjustment, the overall movement can be facilitated by folding and unfolding the universal wheels, and the use is flexible.

Description

TECHNICAL FIELD

[0001] The utility model relates to exhibition use Led big screen technical field especially, relate to a kind of adjustable Led big screen. BACKGROUND

[0002] LED has the advantages of energy saving, long service life, no heavy metal mercury inside, etc., so that LED is widely used in life. Electronic display screen prepared with LED as light source can be used to display various information such as text, graphics, images, animation, market information, video and video signal. In some exhibition sites, combined large screens are often used for display.

[0003] Publication (announcement) No. CN114420002A relates to a kind of exhibition multimedia display equipment. The exhibition multimedia display equipment includes equipment shell, the equipment shell includes side box part and upper box part, the side of the equipment shell is provided with a plurality of limiting frame bodies, a plurality of groups of limiting frame bodies are arranged in column, at least one column is arranged, the column is horizontal column or vertical column, display screen is placed in the limiting frame body, a plurality of groups of display screens constitute modular display large screen, the side box part is located at the side of the modular display large screen, and the upper box part is located at the upper part of the modular display large screen. The inside of the equipment shell is provided with a row pipe frame body, the row pipe frame body corresponds to the column-shaped arrangement limiting frame body, the surface of the row pipe frame body is provided with a rotatable rotating part, and the rotating part is connected with at least two groups of telescopic parts. The exhibition multimedia display equipment is convenient for viewers and maintenance personnel to use simultaneously, improves the display effect, and is convenient for popularization and use.

[0004] The existing exhibition Led large screen is composed of multiple screens, which cannot be adjusted in distance and position, and the display effect is not good. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings of the existing exhibition Led large screen, which is composed of multiple screens and cannot be adjusted in distance and position, and the display effect is not good, and provides an adjustable Led large screen.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] An adjustable Led large screen includes:

[0008] A base is provided with four foot screws at the bottom, and a recess is formed at the bottom of the base, and a moving wheel mechanism is arranged in the recess.

[0009] A plurality of display screen supports are installed on the top of the base, and a guide rail groove is formed on each display screen support.

[0010] A plurality of display screens, a plurality of the display screens are provided with height adjusting mechanisms, and the height adjusting mechanisms are connected with corresponding guide rail grooves.

[0011] Preferably, the rear side of the display screen is provided with a mounting plate through screws, the mounting plate is fixedly provided with a sliding block, the sliding block is slidably connected with the inner wall of the guide rail groove, the sliding block is fixedly provided with a guide rail block, two vertical rods are fixedly arranged in the display screen support, two vertical holes are formed in the guide rail block, and the vertical rods are slidably connected with the inner wall of the vertical holes; the sliding block and the guide rail block drive the display screen to be vertically adjusted.

[0012] Preferably, the outer side of the guide rail block is fixedly provided with a servo motor, a drive gear is arranged on the output shaft of the servo motor, a rack is fixedly arranged on the inner wall of the guide rail groove, and the drive gear is meshed with the rack; the servo motor drives the drive gear to rotate, the drive gear cooperates with the rack, and the guide rail block and the sliding block are adjusted in height.

[0013] Preferably, the height adjusting mechanism comprises a lifting plate, four supporting blocks are fixedly arranged at the bottom of the lifting plate, universal wheels are arranged at the bottom of the four supporting blocks, a bidirectional screw rod is rotatably arranged in the groove, outer threads are arranged at the two ends of the bidirectional screw rod, the screw directions of the two outer threads are opposite, moving blocks are threadedly connected to the outer sides of the two outer threads, two inclined struts are rotatably arranged at the bottom of each moving block, the four inclined struts are rotatably connected with the top of the lifting plate, a circular groove is formed in the outer side of the base, and the outer end of the bidirectional screw rod extends into the circular groove and is provided with a crank handle; the bidirectional screw rod is driven to rotate through the crank handle, the two moving blocks are driven to move close to each other through the two outer threads, the lifting plate drives the four supporting blocks and the four universal wheels to move downward and contact the ground through the four inclined struts, and the whole can be conveniently moved.

[0014] Preferably, sliding grooves are formed in the inner walls of the two sides of the groove, guide blocks are slidably arranged in the two sliding grooves, and the two guide blocks are fixedly arranged with the lifting plate; the vertical movement of the lifting plate can be ensured.

[0015] In the utility model, the beneficial effects of the adjustable Led large screen are:

[0016] The plurality of display screens are in a combined form, the servo motor drives the drive gear to rotate, the drive gear cooperates with the rack, the guide rail block and the sliding block are adjusted in height, and the sliding block drives the display screen to be adjusted in height.

[0017] The multiple display screens can be matched to form multiple adjustment modes, when the whole needs to be moved, a crank handle drives the bidirectional screw rod to rotate, the bidirectional screw rod drives the two moving blocks to approach each other through two external threads, the two moving blocks drive the lifting plate to move downward through four inclined support rods, the lifting plate drives the four supporting blocks and four universal wheels to move downward and contact the ground, the whole can be conveniently moved, after the movement is completed, the crank handle is reversely rotated, the four universal wheels are retracted, the four ground feet contact the ground, and the stability of the whole is improved.

[0018] The multiple display screens can be matched to form multiple adjustment modes, when the whole needs to be moved, a crank handle drives the bidirectional screw rod to rotate, the bidirectional screw rod drives the two moving blocks to approach each other through two external threads, the two moving blocks drive the lifting plate to move downward through four inclined support rods, the lifting plate drives the four supporting blocks and four universal wheels to move downward and contact the ground, the whole can be conveniently moved, after the movement is completed, the crank handle is reversely rotated, the four universal wheels are retracted, the four ground feet contact the ground, and the stability of the whole is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A structural schematic view of the adjustable Led large screen is provided in the utility model.

[0020] Figure 2 A structural schematic view of the display screen support, the display screen and related parts is provided in the utility model. Figure 1 A schematic view of the multiple display screens being separated is provided in the utility model.

[0021] Figure 3 A structural schematic view of the display screen support, the display screen and related parts is provided in the utility model.

[0022] Figure 4 A sectional structural schematic view of the base and the height adjustment mechanism is provided in the utility model.

[0023] Figure 5 A structural schematic view of the sliding block and the guide rail block is provided in the utility model.

[0024] In the drawing: 1, base; 2, display screen support; 3, guide rail groove; 4, display screen; 5, mounting plate; 6, sliding block; 7, guide rail block; 8, vertical hole; 9, vertical rod; 10, servo motor; 11, rack; 12, ground foot; 13, recess; 14, lifting plate; 15, supporting block; 16, universal wheel; 17, bidirectional screw rod; 18, external thread; 19, moving block; 20, inclined support rod; 21, crank handle; 22, round groove; 23, guide block; 24, sliding groove; 25, driving gear. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments, and obviously, the described embodiments are only part of the embodiments, rather than all the embodiments.

[0026] Embodiment one

[0027] The application will be further described below. Figures 1-5 The application will be further described below.

[0028] An adjustable Led large screen, comprising:

[0029] A base 1, the bottom of the base 1 is provided with four footings 12, the bottom of the base 1 is provided with a groove 13, the groove 13 is provided with a moving wheel mechanism;

[0030] A plurality of display screen supports 2, each of which is installed on the top of the base 1, and each of the plurality of display screen supports 2 is provided with a guide rail groove 3;

[0031] A plurality of display screens 4, each of which is provided with a height adjusting mechanism, and the height adjusting mechanism is connected to the corresponding guide rail groove 3.

[0032] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 5 In this embodiment, the rear side of the display screen 4 is provided with a mounting plate 5 through a screw, the mounting plate 5 is fixedly installed with a sliding block 6, the sliding block 6 is in sliding connection with the inner wall of the guide rail groove 3, the sliding block 6 is fixedly installed with a guide rail block 7, the display screen support 2 is fixedly installed with two vertical rods 9, the guide rail block 7 is provided with two vertical holes 8, and the vertical rod 9 is in sliding connection with the inner wall of the vertical hole 8; the sliding block 6 and the guide rail block 7 drive the display screen 4 to be vertically adjusted.

[0033] Referring to Figure 3 In this embodiment, the outer side of the guide rail block 7 is fixedly installed with a servo motor 10, the output shaft of the servo motor 10 is installed with a drive gear 25, the inner wall of the guide rail groove 3 is fixedly installed with a rack 11, and the drive gear 25 is in meshing connection with the rack 11; the servo motor 10 drives the drive gear 25 to rotate, the drive gear 25 cooperates with the rack 11 to drive the guide rail block 7 and the sliding block 6 to be adjusted in height.

[0034] Referring to Figure 3In the embodiment, the height adjusting mechanism comprises a lifting plate 14, four supporting blocks 15 are fixedly installed at the bottom of the lifting plate 14, universal wheels 16 are arranged at the bottom of each of the four supporting blocks 15, a bidirectional screw rod 17 is rotatably installed in the groove 13, external threads 18 are arranged at both ends of the bidirectional screw rod 17, the screw directions of the two external threads 18 are opposite, moving blocks 19 are threadedly connected to the outer sides of the two external threads 18, two inclined struts 20 are rotatably installed at the bottom of each of the two moving blocks 19, the four inclined struts 20 are rotatably connected to the top of the lifting plate 14, a circular groove 22 is formed in the outer side of the base 1, the outer end of the bidirectional screw rod 17 extends into the circular groove 22 and is provided with a crank 21; the crank 21 drives the bidirectional screw rod 17 to rotate, the bidirectional screw rod 17 drives the two moving blocks 19 to move close to each other through the two external threads 18, the two moving blocks 19 drive the lifting plate 14 to move downward through the four inclined struts 20, and the lifting plate 14 drives the four supporting blocks 15 and the four universal wheels 16 to move downward and contact the ground, so that the overall movement can be facilitated.

[0035] Referring to Figure 4 In the embodiment, sliding grooves 24 are formed in the inner walls on both sides of the groove 13, guide blocks 23 are slidably installed in the two sliding grooves 24, and the two guide blocks 23 are fixedly installed with the lifting plate 14; the vertical movement of the lifting plate 14 can be ensured.

[0036] The working mode is as follows: in use, the power supply and the PLC controller can be connected to control the electrical appliances, which is not described herein, the plurality of display screens 4 are in a combined form, the driving gear 25 is driven to rotate by the servo motor 10, the driving gear 25 cooperates with the rack 11 to drive the guide rail block 7 and the sliding block 6 to adjust the height, the sliding block 6 drives the display screen 4 to adjust the height, and the plurality of display screens 4 can form various adjustment modes. When the overall movement is needed, the crank 21 drives the bidirectional screw rod 17 to rotate, the bidirectional screw rod 17 drives the two moving blocks 19 to move close to each other through the two external threads 18, the two moving blocks 19 drive the lifting plate 14 to move downward through the four inclined struts 20, and the lifting plate 14 drives the four supporting blocks 15 and the four universal wheels 16 to move downward and contact the ground, so that the overall movement can be facilitated. After the movement is completed, the crank 21 is reversely rotated, so that the four universal wheels 16 are retracted, the four foot screws 12 contact the ground, and the stability of the whole is improved.

[0037] Embodiment two

[0038] Embodiment two is same as the rest of embodiment one, the difference is that the slider 6 is embedded with two balls on both sides, both balls are in sliding connection with the side wall of the guide groove 3, which reduces the friction between the slider 6 and the guide groove 3, all the structure shape, size and material in this application including embodiment one can be selected and adjusted to meet the specific use, the drawings are all schematic structural diagrams, the specific actual size can be adjusted appropriately.

[0039] The above is only the preferred specific implementation of the present embodiment, but the protection scope of the present embodiment is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the present embodiment within the technical range disclosed by the present embodiment, which should be covered in the protection scope of the present embodiment.

Claims

1. A regulated Led large screen, characterized by, The utility model relates to a display screen automatic height adjusting device, including: The bottom of base (1) is provided with four ground foot (12), the bottom of base (1) is opened with recess (13), recess (13) is provided with moving wheel mechanism in; A plurality of display screen support (2) are installed on the top of base (1), a plurality of display screen support (2) are all opened with guide rail groove (3); A plurality of display screen (4) are all installed with height adjusting mechanism, and height adjusting mechanism is connected with corresponding guide rail groove (3); The height adjusting mechanism includes lifting plate (14), the bottom of lifting plate (14) is fixedly installed with four support blocks (15), the bottom of four support blocks (15) is provided with universal wheel (16), recess (13) is rotatably installed with two-way screw rod (17), both ends of two-way screw rod (17) are provided with external thread (18), and the screw direction of two external threads (18) is opposite, the outer side of two external threads (18) is all screw connected with moving block (19), and the bottom of two moving blocks (19) is rotatably installed with two inclined struts (20), four inclined struts (20) are rotatably connected with the top of lifting plate (14).

2. The adjustable Led large screen according to claim 1, characterized in that, The rear side of display screen (4) is installed with mounting plate (5) through screw, mounting plate (5) is fixedly installed with sliding block (6), and sliding block (6) is slidably connected with the inner wall of guide rail groove (3).

3. The adjustable Led large screen according to claim 2, characterized in that, Sliding block (7) is fixedly installed on the sliding block (6), two vertical rods (9) are fixedly installed in display screen support (2), two vertical holes (8) are formed in the sliding block (7), and the vertical rod (9) is slidably connected with the inner wall of vertical hole (8).

4. The adjustable Led large screen according to claim 3, characterized in that, Servo motor (10) is fixedly installed on the outer side of guide rail block (7), drive gear (25) is installed on the output shaft of servo motor (10), rack (11) is fixedly installed on the inner wall of guide rail groove (3), and drive gear (25) is engaged with rack (11).

5. The adjustable Led large screen according to claim 1, characterized in that, Round groove (22) is formed in the outer side of base (1), and the outer end of two-way screw rod (17) extends into round groove (22) and is installed with crank handle (21).

6. The adjustable Led large screen according to claim 1, characterized in that, Slip groove (24) is formed in the inner wall of both sides of recess (13), guide block (23) is slidably installed in two slip grooves (24), and two guide blocks (23) are fixedly installed with lifting plate (14).

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