Foldable portable LED display screen

Abstract

The invention discloses a foldable portable LED display screen, and relates to the technical field of LED display screens, the foldable portable LED display screen comprises a storage cabinet, the storage cabinet is provided with a bottom support and a protective cover covering the bottom support, a plurality of display screens are equally divided into two groups, one group of display screens are arranged in a linear structure, and the other group of display screens are also arranged in a linear structure. Every two adjacent display screens in the same set are hinged in the folding direction, the display screen, located in the middle, in one set of display screens is arranged in the containing concave part in a lifting mode, and after being lifted, the multiple display screens in the set can be screwed on the other set of display screens to be attached in an up-down right-facing mode. And other display screens hinged to the middle display screen are overturned and unfolded into the same plane around respective hinged positions to form a large screen. According to the outdoor display screen, the display screen can be folded and stored, the portability and the safety during transportation and movement are improved, and the problems that a large-area display screen is inconvenient to fold and use and prone to collision and damage, and the use range of the outdoor display screen is limited are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of LED display screens, and in particular to a foldable portable LED display screen. Background Art

[0002] LED display is a display method that controls semiconductor light-emitting diodes. It is composed of tens of thousands to hundreds of thousands of semiconductor light-emitting diode pixels arranged evenly. With the development of society, LED display screens are used in many industries for display, not limited to indoor use. The demand for outdoor LED display screens has also increased dramatically. If the area of ​​outdoor display screens is too large, multiple single LED display screens are generally assembled together to form a large screen of the required area for outdoor concerts, event displays, etc.

[0003] LED display screens for outdoor use usually need to be transported to designated locations by carriers. However, most existing LED display screens do not have external protective mechanisms and are often damaged by bumps or collisions, which can cause the LED display screens to be unable to be used normally. In addition, the assembly of multiple individual display screens is time-consuming, and frequent disassembly and installation can also cause varying degrees of damage to the line interface of the display screen during unplugging and unplugging. Summary of the invention

[0004] The purpose of the present invention is to provide a foldable portable LED display screen to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a foldable portable LED display screen, comprising:

[0006] A storage cabinet, the storage cabinet comprising a base and a protective cover covering the base, the base being provided with a storage recess, the protective cover covering the storage recess to form a closed protective cavity for storing a display screen;

[0007] Multiple display screens, wherein the display screens are connected to power and signals via cables, and the multiple display screens are equally divided into two groups, wherein one group of display screens is arranged in a straight line structure, and the other group of display screens is also arranged in a straight line structure, and two adjacent display screens are hinged in a folding direction, and the height is fixed;

[0008] A display screen located in the middle of one group of display screens is arranged in a lifting manner in the storage recessed portion, and after the multiple display screens in this group are raised, they can be rotated to fit vertically and horizontally with the other group of display screens, and the other display screens hinged to the middle display screen are flipped around their respective hinged positions and unfolded to the same plane to form a large screen.

[0009] In a further embodiment, the height inside the protective cavity is greater than the vertical height of a single display screen.

[0010] In a further embodiment, the bottom ends of the outer walls around the protective cover are provided with rotatable lock buckles, and the upper ends of the outer walls around the base are provided with protruding blocks. When the protective cover is covered on the upper end surface of the base, the flip lock buckles are buckled on the outer walls of the protruding blocks.

[0011] In a further embodiment, the protective cover is divided into two.

[0012] In a further embodiment, a rotating power component is fixedly embedded in the bottom wall of the storage recess, a power output end of the rotating power component is fixedly connected to a lifting component, an extension block is fixed at the top position of a display screen back panel in the middle position of a group of display screens, and the extension block is fixed at the top position of the lifting component;

[0013] The rotating power component provides rotating power for the lifting component, and the lifting component provides lifting power for the extension block.

[0014] In a further embodiment, the same group of display screens has three screens, the display screen in the middle position is a large screen, and the remaining two display screens are narrow screens. The two narrow screens are respectively hinged on the side frames of the large screen, and a hydraulic cylinder 1 is hinged on the back panel of the large screen, and the telescopic end of the hydraulic cylinder 1 is hinged to the back panel of the side narrow screen.

[0015] In a further embodiment, a limit plug is provided on the bottom wall of a group of display screen frames that can be raised and lowered, and a slot matching the limit plug is provided on the top wall of a group of display screen frames that have a constant height.

[0016] In a further embodiment, notches are provided at the four side feet of the bottom of the base, a pull rod is horizontally slidably inserted on one of the longitudinal side walls in the notch, a hydraulic cylinder 2 is fixed to the end of the pull rod, and the telescopic end of the hydraulic cylinder is connected to an inverted T-shaped supporting foot.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention is a foldable portable LED display screen, which can be folded and stored, thereby facilitating the movement and transportation of the display screen, improving the portability and safety during transportation and movement, and effectively solving the problem that large-area display screens are inconvenient to fold and use, are easily damaged by collision with each other, and limit the outdoor use range of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure after the main structure of the present invention is stored;

[0020] Figure 2 A schematic diagram of removing the protective cover from the main structure of the present invention;

[0021] Figure 3It is a partial cross-sectional view of the main structure of the present invention;

[0022] Figure 4 A schematic diagram of a structure for raising one set of display screens of the present invention;

[0023] Figure 5 It is a structural schematic diagram of one set of display screens of the present invention, which is raised and then rotated to be seated on the upper end surface of another set of display screens;

[0024] Figure 6 This is a demonstration diagram of the side position display screen of the present invention;

[0025] Figure 7 It is a schematic diagram of the whole display screen of the present invention after unfolding.

[0026] In the figure: 1. base support; 11. protective cover; 12. lock; 13. raised block; 2. hydraulic cylinder 2; 21. inverted T-shaped support foot; 22. pull rod; 3. display screen; 31. extension block; 32. limit plug; 4. lifting component; 5. rotating power component. DETAILED DESCRIPTION

[0027] The following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment, this embodiment provides a foldable portable LED display screen 3, such as Figure 1 As shown, the storage cabinet comprises: a storage cabinet having a bottom bracket 1 and a protective cover 11 covering the bottom bracket 1, a storage recess is provided on the bottom bracket 1, and the protective cover 11 covers the storage recess to form a closed protective cavity for storing the display screen 3. It should be noted that the height inside the protective cavity is greater than the vertical height of a single display screen 3, ensuring that after the protective cover 11 covers the bottom bracket 1, the inner top wall of the protective cover 11 does not touch the top wall of the outer frame of the display screen 3, so as to avoid crushing the display screen 3.

[0029] Furthermore, in order to prevent the protective cover 11 from slipping off the upper end of the base 1 during long-distance circulation, it is necessary to limit it. By providing rotatable lock buckles 12 at the bottom ends of the outer walls around the protective cover 11, and providing protruding blocks 13 at the upper ends of the outer walls around the base 1, when the protective cover 11 covers the upper end surface of the base 1, the flip lock buckles 12 are buckled on the outer walls of the protruding blocks 13, so that the protective cover 11 and the base 1 can be stably locked.

[0030] The protective cover 11 can also be divided into two parts, such as Figure 1As shown, when the lock buckle 12 is flipped over and detached from the outer wall of the raised block 13, the two half protective covers 11 can be removed horizontally separately. The weight of the half protective cover 11 is relatively large compared to the entire protective cover 11, so it is more labor-saving to take it separately.

[0031] like Figure 2 and Figure 3 As shown, it also includes multiple display screens 3, and the display screens 3 are LED screens. The display screens 3 are connected to power and signals through cables to ensure that all the display screens 3 are combined together to display an overall picture.

[0032] like Figure 4 and Figure 5 As shown, the plurality of display screens 3 are equally divided into two groups, one group of display screens 3 is arranged in a straight line structure, and the other group of display screens 3 is also arranged in a straight line structure, and two adjacent display screens 3 are hinged in a folding direction, and the height is fixed. Figure 6 and Figure 7 As shown, one display screen 3 located in the middle position of one group of display screens 3 is arranged in a lifting manner in a storage recessed portion, and after the plurality of display screens 3 in this group are lifted, they can be rotated to fit vertically and horizontally with another group of display screens 3, and the other display screens 3 hinged to the middle display screen 3 are flipped around their respective hinged positions and unfolded to the same plane to form a large screen.

[0033] Specifically, in this embodiment, the same group of display screens 3 has three pieces, the display screen 3 in the middle position is a large screen, and the remaining two display screens 3 are narrow screens, the two narrow screens are respectively hinged on the side frames of the large screen, and a hydraulic cylinder 1 is hinged on the back plate of the large screen, and the telescopic end of the hydraulic cylinder 1 is hinged with the back plate of the narrow screen on the side. At the same time, a rotating power component 5 is fixedly embedded in the bottom wall of the storage recessed part, and the power output end of the rotating power component 5 is fixedly connected to a lifting component 4, and an extension block 31 is fixed at the top position of the back plate of a display screen 3 in the middle position of a group of display screens 3, and the extension block 31 is fixed at the top position of the lifting component 4.

[0034] The rotating power component 5 provides rotating power for the lifting component 4. The rotating power component 5 adopts a servo motor, and provides rotational power in two states of 0° and 180° by presetting the rotation angle of the servo motor. In addition, the lifting component 4 provides lifting power for the extension block 31. The lifting component 4 adopts a multi-stage hydraulic telescopic cylinder.

[0035] When the display screen 3 is unfolded and used, Figure 6 and Figure 7As shown, first use a multi-stage hydraulic telescopic cylinder to lift the corresponding group of display screens 3 upwards to a height higher than the top of the outer frame of the other group of display screens 3, then use a servo motor to provide rotational power to drive the multi-stage hydraulic telescopic cylinder to rotate 180°, so that the two groups of display screens 3 are directly opposite each other, then retract the multi-stage hydraulic telescopic cylinder to drop the upper group of display screens 3 onto the top wall of the outer frame of the lower group of display screens 3, and then unfold the narrow screens on the sides of the two groups of display screens 3, that is, use a hydraulic cylinder to stretch the narrow screens and flip them around the hinge with the large screen until the large screen and the narrow screen are kept in the same plane. At this time, all the display screens 3 are unfolded in the same plane to form a complete large-area display screen 3 for displaying video images.

[0036] After the use of the display screen 3 is finished, the narrow screen is flipped around the hinge with the large screen to the back of the large screen and fitted together. Then, the servo motor is used to provide rotational power to drive the multi-stage hydraulic telescopic cylinder to rotate 180° in the opposite direction. The upper and lower groups of display screens 3 are staggered. Then, the multi-stage hydraulic telescopic cylinder is retracted to gradually lower the height of the upper group of display screens 3 until they are completely stored in the storage recessed portion and are at the same height as the other group of display screens 3. Then, the protective cover 11 is covered on the base 1, and the lock buckle 12 is flipped and buckled on the outer wall of the raised block 13. In this way, the protective cover 11 and the base 1 can be stably locked, and the display screen 3 can be completely stored in the protective cavity for easy transportation to other places for use.

[0037] In this embodiment, further, Figure 3 As shown, a limit plug 32 is provided on the bottom wall of the frame of a group of display screens 3 that can be raised and lowered, and a slot matching the limit plug 32 is provided on the top wall of the frame of a group of display screens 3 that remain unchanged in height. The upper group of display screens 3 is raised to a height higher than the lower group of display screens 3, then rotates 180° and then slowly descends to sit on the lower group of display screens 3. At the same time, the limit plug 32 can be inserted into the corresponding slot, so that the outer frames of the upper and lower display screens 3 can be stably attached together to prevent the side deviation caused by the wind when used outdoors, resulting in the inability of the unfolded display screens 3 to display video images on the same screen surface, thereby affecting the video display effect of the display screens 3.

[0038] In addition, there are notches at the four sides of the bottom of the base 1, and a pull rod 22 is inserted horizontally and slidably on one of the longitudinal side walls in the notch. A hydraulic cylinder 22 is fixed at the end of the pull rod 22, and an inverted T-shaped support leg 21 is connected to the telescopic end of the hydraulic cylinder. Figure 2As shown, in order to increase the stability of the display screen 3 after it is unfolded, the pull rods 22 in the four notches are first pulled out horizontally, and the linear distance between the four hydraulic cylinders 22 is expanded, the support surface is expanded, and the support stability of the overall structure can be enhanced. Then, the telescopic end of the hydraulic cylinder 22 is stretched to drive the inverted T-shaped support foot 21 to descend and touch the ground, and then continue to prop it up until the base 1 is completely lifted off the ground, which is suitable for uneven ground. By retracting the four hydraulic cylinders 22, the support height of the inverted T-shaped support foot 21 is adjusted to ensure that the unfolded thickness display screen 3 can display the video screen at the best viewing angle.

[0039] In addition, brake universal wheels can be installed at the four corners of the bottom wall of the base 1, so that when moving on the ground, a single person can push the base 1, and there is no need for multiple people to coordinate and move it.

[0040] In summary, the above structure can fold and store the display screen 3, thereby facilitating the movement and transportation of the display screen 3, improving the portability and safety during transportation, and effectively solving the problem that the large-area LED display screen 3 is inconvenient to fold and use, is prone to collision and damage, and limits the outdoor use scope of the display screen 3.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable portable LED display screen (3), characterized in that: include: A storage cabinet, the storage cabinet comprising a base (1) and a protective cover (11) covering the base (1), the base (1) being provided with a storage recessed portion, the protective cover (11) covering the storage recessed portion to form a closed protective cavity; A plurality of display screens (3), wherein the display screens (3) are connected to a power supply and a signal via a flat cable, and the plurality of display screens (3) are equally divided into two groups, wherein one group of display screens (3) is arranged in a straight line structure, and the other group of display screens (3) is also arranged in a straight line structure, and two adjacent display screens (3) are hinged in a folding direction, and the height is fixed; One display screen (3) located in the middle of one group of display screens (3) is arranged in a lifting manner in the storage recessed portion, and after the plurality of display screens (3) are lifted, they can be rotated to be vertically aligned with another group of display screens (3), and the other display screens (3) hinged to the middle display screen (3) are flipped around their respective hinged positions and unfolded to the same plane to form a large screen.

2. The foldable portable LED display screen (3) according to claim 1, characterized in that: The height inside the protective cavity is greater than the vertical height of a single display screen (3).

3. The foldable portable LED display screen (3) according to claim 1, characterized in that: The bottom ends of the outer walls around the protective cover (11) are all provided with rotatable lock buckles (12), and the upper ends of the outer walls around the base (1) are all provided with protruding blocks (13). When the protective cover (11) covers the upper end surface of the base (1), the lock buckles (12) are turned over and buckled on the outer walls of the protruding blocks (13).

4. The foldable portable LED display screen (3) according to claim 1, characterized in that: The protective cover (11) is divided into two.

5. The foldable portable LED display screen (3) according to claim 1, characterized in that: A rotating power component (5) is fixedly embedded in the bottom wall of the storage recessed portion, and a power output end of the rotating power component (5) is fixedly connected to a lifting component (4), wherein an extension block (31) is fixed at the top position of the back plate of a display screen (3) in the middle position of a group of display screens (3), and the extension block (31) is fixed at the top position of the lifting component (4); The rotating power component (5) provides rotating power for the lifting component (4), and the lifting component (4) provides lifting power for the extension block (31).

6. The foldable portable LED display screen (3) according to claim 5, characterized in that: The same group of display screens (3) comprises three screens, the display screen (3) in the middle position is a large screen, and the remaining two display screens (3) are narrow screens, the two narrow screens are respectively hinged on the side frames of the large screen, a hydraulic cylinder 1 is hinged on the back plate of the large screen, and the telescopic end of the hydraulic cylinder 1 is hinged to the back plate of the narrow screen on the side.

7. The foldable portable LED display screen (3) according to claim 6, characterized in that: A limit plug (32) is provided on the bottom wall of the frame of a group of display screens (3) that can be raised and lowered, and a slot matching the limit plug (32) is provided on the top wall of the frame of a group of display screens (3) that has a constant height.

8. The foldable portable LED display screen (3) according to claim 1, characterized in that: The bottom of the base (1) is provided with notches at the four side feet, and a pull rod (22) is horizontally slidably inserted on one of the longitudinal side walls in the notch, and a hydraulic cylinder (2) is fixed to the end of the pull rod (22), and the telescopic end of the hydraulic cylinder is connected to an inverted T-shaped support foot (21).

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