Hanging lifting LED screen with height convenient to adjust

Abstract

Idler wheels are arranged at the four corners of the lower portion of a mounting base, an electric push rod and a sliding module which are arranged in parallel are arranged on the upper portion of the mounting base, the hanging lifting LED screen further comprises an LED screen body, the LED screen body comprises an LED screen shell and an LED screen, a longitudinal rod corresponding to the electric push rod in position is arranged on the back of the LED screen shell, and the LED screen is arranged on the longitudinal rod. The longitudinal rod comprises an inner cavity, the inner cavity is arranged on the electric push rod in a sleeving mode, an end cap is arranged at the upper end of the longitudinal rod and connected with a universal joint, the lower end of the universal joint is connected with the movable end of the electric push rod, the movable end is connected to the upper middle portion of the LED screen body, the lower edge of the inner cavity is not lower than the lower edge of the LED screen body, and the back of the LED screen shell is connected with a sliding block portion of the sliding module. The sliding rail part of the sliding module is fixedly connected to the mounting base. According to the utility model, the shaking and inclination phenomena caused by uneven stress in the transfer process of the larger LED display screen are reduced, and the convenience and flexibility of the equipment moving among different conference rooms are improved.

Description

Technical Field

[0001] This utility model relates to the field of LED screen application technology, specifically to a suspended lifting LED screen that is easy to adjust in height. Background Technology

[0002] In modern conference settings, large LED displays are widely used to meet diverse display needs. These displays typically need to be moved flexibly between different meeting rooms. When the display needs to pass through low doorways, its height must be lowered to ensure safe passage. However, traditional designs have several drawbacks. In terms of connection methods, many use an electric push rod with a platform at the top supporting the bottom of the display; the electric push rod lifts the display from below. For large and thin displays, this bottom-lifting method concentrates the force at the bottom during ascent, failing to provide uniform and stable support for the display in a horizontal plane. Especially when frequently moving the display and crossing thresholds, vibrations and bumps can easily cause the display to wobble and tilt, affecting the display effect and potentially causing loosening or damage to the internal structure over time, reducing its safety and lifespan.

[0003] Furthermore, when the display screen needs to pass through a low doorway frame, the traditional structure, due to the limited height of the electric actuator's housing, leaves a gap even when the display screen is lowered to the lowest travel position of the actuator, preventing it from descending low enough to pass smoothly through the doorway frame. For some large display screens with a height similar to the doorway frame, even with the original height of the electric actuator, it is even more difficult to overcome the doorway obstacle. This often requires cumbersome operations such as disassembling and reinstalling the display screen, which not only consumes a lot of time and manpower but also increases the risk of damage to the display screen, seriously affecting the normal progress of the meeting and the efficiency of equipment use.

[0004] In summary, to solve the above problems, this application provides a suspended lifting LED screen that is easy to adjust in height. Utility Model Content

[0005] The purpose of this invention is to provide a suspended lifting LED screen that is easy to adjust in height, reducing swaying and tilting caused by uneven force during the transfer of larger displays, and improving the convenience and flexibility of moving the equipment between different conference rooms.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a suspended lifting LED screen with adjustable height, comprising a mounting base, rollers at the four lower corners of the mounting base, and a parallel electric push rod and a sliding module above the mounting base. It also includes an LED screen body, comprising an LED screen housing and an LED screen. A longitudinal rod corresponding to the position of the electric push rod is provided on the back of the LED screen housing. The longitudinal rod includes an internal cavity, which is fitted onto the electric push rod. An end cap is provided at the upper end of the longitudinal rod, and the end cap connects to a universal joint. The lower end of the universal joint connects to the movable end of the electric push rod, which is connected to the upper middle part of the LED screen body. The lower edge of the internal cavity is not lower than the lower edge of the LED screen body. The back of the LED screen housing is connected to the slider portion of the sliding module, and the slide rail portion of the sliding module is fixedly connected to the mounting base.

[0007] Preferably, the length of the internal cavity is not less than the overall length of the electric push rod in its retracted limit state.

[0008] Preferably, the shortest alignment distance of the cross-section of the internal cavity is not less than the maximum cross-sectional diameter of the push rod body of the electric push rod.

[0009] Preferably, an elastic rubber ring is provided at the lower part of the internal cavity, and the elastic rubber ring is sleeved on the electric push rod.

[0010] Preferably, a limit sensor is provided on the mounting base corresponding to the bottom surface of the LED screen body.

[0011] Preferably, an elastic anti-collision strip is provided on the mounting base corresponding to the bottom surface of the LED screen body.

[0012] Preferably, the LED screen body includes an LED main screen and LED side screens on both sides of the LED main screen. A connecting hinge is provided between the LED main screen and the LED side screens. Multiple sets of multi-level damping hinges are sleeved on the connecting hinge. The sleeves of the multi-level damping hinges are respectively connected to the LED main screen and the LED side screens on both sides, so that the LED side screens can be rotated, folded or unfolded relative to each other.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] This invention allows the display screen to be lowered to an extremely low position. When moving between different meeting rooms and encountering obstacles such as low thresholds, the electric push rod can be easily operated to lower the screen, allowing it to pass smoothly before raising it to a suitable height for display. This significantly improves the convenience and operational flexibility of movement. Furthermore, this invention employs a suspension design where the upper end of the electric push rod connects to the upper end of the hollow vertical rod behind the display screen. Combined with the guiding effect of the sliding module, the initial force application point is distributed on the upper part of the display screen. This suspension-like force application transmits the suspension force through the vertical rod to multiple points for even distribution, thus providing multi-point even force on the thin and large back of the display screen. Compared to the traditional bottom-lifting method, this effectively avoids swaying and tilting caused by concentrated force at the bottom, significantly reducing the risk of damage to the internal structure of the display screen due to vibration during movement and lifting. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a suspended lifting LED screen that is easy to adjust in height, according to this embodiment.

[0016] In the diagram: 1. Mounting base, 2. Electric push rod, 3. LED screen body, 301. LED main screen, 302. LED side screen, 4. Vertical rod, 401. End cap, 402. Bolt hole, 403. Universal joint, 5. Internal cavity, 6. Sliding module, 601. Slide rail, 602. Slider, 603. Elastic limit block, 7. Limit sensor, 8. Elastic anti-collision strip, 9. Connecting shaft, 10. Multi-level damping hinge. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figure 1As shown, a height-adjustable suspended lifting LED screen is characterized by: a mounting base 1 with rollers at its four lower corners; an electric push rod 2 and a sliding module 6 on the upper part of the mounting base 1; and an LED screen body 3, comprising an LED screen housing and an LED screen. A longitudinal rod 4, corresponding to the position of the electric push rod 2, is provided on the back of the LED screen housing 3. The longitudinal rod 4 includes a through internal cavity 5, the length of which is not less than the overall length of the electric push rod 2 at its retracted limit state, and the shortest alignment distance of the cross-section of the internal cavity 5 is not less than the maximum cross-sectional diameter of the push rod body of the electric push rod 2. The internal cavity 5 is fitted onto the electric push rod 2. An end cap 401 is provided at the upper end of the longitudinal rod, with bolt holes 402 for connection to the end of the longitudinal rod 4. A sealing gasket is provided between the end cap 401 and the longitudinal rod 4 to seal the internal cavity of the longitudinal rod 4 and prevent dust contamination. The end cap 401 flange is connected to the universal joint 403. The lower end of the universal joint 403 is connected to the movable end of the electric push rod 2, so that the electric push rod 2 can adapt to the posture changes of the display screen during the lifting process, reducing stress concentration problems caused by the deformation of the display screen itself or installation errors. In this embodiment, the movable end is connected to the upper middle part of the LED screen body 3. The lower edge of the internal cavity 5 is not lower than the lower edge of the LED screen body 3. An elastic rubber ring is provided at the lower part of the internal cavity 5. The elastic rubber ring is sleeved on the electric push rod 2 for positioning the electric push rod 2 at the lower end. The sliding module 6 includes a slide rail part 601 and a slider part 602. The bottom of the slide rail part 601 is connected to the mounting base 1, and the upper part is connected to the slider part 602. The slider part 602 is connected to the LED screen housing. Elastic limit blocks 603 are respectively provided at the upper and lower ends of the slide rail part 601 for elastically limiting the slider part 602.

[0019] In this embodiment, the electric actuator 2 uses an electro-hydraulic structure with a stroke range of 0.5 meters to 1.5 meters, enabling precise adjustment of the height of the LED screen body 3. The actuator's raising, lowering, and stopping actions can be easily controlled via a remote control or the control panel on the base. When used in a conference room, the screen height can be adjusted to the optimal position according to different table and chair heights and viewing angle requirements, enhancing the user's viewing experience.

[0020] This embodiment cleverly incorporates two hollow vertical rods corresponding to the positions of the electric push rods 2 on the back shell of the display screen, and ingeniously connects the upper ends of the electric push rods 2 to the upper ends of the hollow vertical rods, constructing a unique suspended lifting mode. This, combined with the sliding module 6 for longitudinal guidance and positioning, ensures that the force is evenly distributed at the upper connection point of the display screen when the electric push rods 2 extend or retract. This provides an ideal multi-point even force distribution on the back of the large-size, thin display screen during lifting, allowing the screen to move smoothly along the predetermined vertical direction and effectively preventing swaying, tilting, and offset. Compared to the traditional bottom-lifting method, this suspended structure fundamentally changes the force distribution, effectively avoiding instability such as swaying and tilting that are easily caused by concentrated force at a single point or in a localized area at the bottom. In actual meeting scenarios, whether lifting on a stable surface or frequently moving the display screen across complex terrain such as thresholds or uneven ground, it ensures that the display screen maintains a stable posture. This not only ensures that the displayed image is always clear and accurate to the audience, without any blurring, flickering, or distortion, but also greatly reduces the risk of damage to the delicate electronic components, wiring connections, and mechanical structure inside the display screen caused by long-term vibration and unstable stress. This significantly extends the lifespan of the display screen and reduces the number of repairs and costs due to equipment failure.

[0021] Furthermore, the display screen can be completely retracted into its internal space when lowering, allowing it to descend unimpeded to its lowest position, and in extreme cases, even to a tight fit between the bottom of the screen and its support base. This feature offers unparalleled advantages in addressing the common challenge of meeting room door frame height restrictions. When moving the display screen from one meeting room to another and encountering a low door frame, operators no longer need to perform the time-consuming and laborious disassembly, transport, and reinstallation of the display screen as with traditional equipment. Simply operate the electric push rod to lower the display screen to its lowest height, allowing it to pass smoothly through the door frame. Then, in the new meeting room, the display screen can be raised to a suitable display position. This process is smooth and natural, greatly improving the convenience and operational flexibility of transferring the equipment between different meeting rooms, significantly reducing the time spent on equipment debugging and relocation during meeting preparation, and effectively improving the overall efficiency of meeting organization. At the same time, it also reduces potential damage to the display screen caused by frequent disassembly and installation, such as scratches and loosening of interfaces, ensuring that the equipment maintains good working condition during long-term, repeated use.

[0022] In other specific embodiments, a limit sensor 7 is provided on the mounting base 1 corresponding to the bottom surface of the LED screen body 3, and an elastic anti-collision strip 8 is provided on the mounting base 1 corresponding to the bottom surface of the LED screen body 3. When the LED screen body 3 descends to a specific height, such as approaching the limit position of the electric push rod retraction or the preset minimum safe working height, the limit sensor quickly sends a signal to prevent damage to the electric push rod 2 or hard collision between the LED screen body 3 and the mounting base 1 due to excessive descent, effectively protecting the key components of the equipment. The elastic anti-collision strip 8 is used to deal with some unexpected situations, such as control system failure, sensor misjudgment, or sudden external vibration interference, which cause the display screen and the base to collide slightly. The strip absorbs the energy generated by the collision through its own elastic deformation, converting the impact force into elastic potential energy, thereby effectively reducing the impact force of the collision on the display screen and the base, avoiding problems such as scratches on the surface of the display screen, loosening of internal components, and deformation of the base structure caused by hard collision, protecting the appearance integrity and internal structural stability of the equipment.

[0023] In other specific embodiments, the LED screen body 3 includes an LED main screen 301 and LED side screens 302 on both sides of the LED main screen 301. A connecting shaft 9 is provided between the LED main screen 301 and the LED side screens 302. Multiple sets of multi-stage damping hinges 10 are sleeved on the connecting shaft 9. The sleeves of the multi-stage damping hinges 10 are respectively connected to the LED main screen 301 and the LED side screens 302 on both sides, so that the LED side screens 302 can be rotated, folded or unfolded relative to the LED main screen 301. The electric push rod 2 is connected to the LED main screen 301. The LED main screen 301 body is made of standard LED modules spliced ​​together. The modules are connected by high-precision slots and buckles to ensure tight and flat splicing. Two LED side screens 302 are connected to both sides of the LED main screen 4. The LED side screens 302 bodies are also composed of LED modules. The connecting shaft 9 is made of stainless steel with a diameter of 10 mm and the surface is polished to reduce friction. The sleeves of the multi-stage damping hinge 10 are securely connected to the LED main screen 301 and the LED side screen 302 on both sides by welding or bolting. The damping plates inside the multi-stage damping hinge 10 generate a damping effect during the closing and opening of the side screen, effectively buffering the impact force of the rapid movement of the side screen, so that the side screen can move smoothly and slowly into place.

[0024] The high-strength sliders, slide rails, longitudinal rods, and reliable connection methods in this embodiment work together to ensure the structural robustness and stability of the multi-screen and foldable screen distributed display structure device. The longitudinal rods and sliding components, as important support structures on the back of the display screen, effectively distribute the weight of the display screen, reducing problems such as uneven gravity distribution caused by excessive force at a single point or inconsistent states of the two screens. They exhibit good load-bearing and homogenization effects. Especially for large-size, thin, multi-foldable displays, this embodiment effectively prevents the screen from bending or deforming, greatly protecting the internal electronic components and display modules.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A suspended, height-adjustable LED screen, characterized in that: The system includes a mounting base with rollers at its four lower corners, and a parallel electric push rod and sliding module on top of the mounting base. It also includes an LED screen body, comprising an LED screen housing and an LED screen. A vertical rod corresponding to the position of the electric push rod is located on the back of the LED screen housing. The vertical rod includes an internal cavity that fits onto the electric push rod. An end cap is located at the upper end of the vertical rod, connecting to a universal joint. The lower end of the universal joint connects to the movable end of the electric push rod, which is connected to the upper middle part of the LED screen body. The lower edge of the internal cavity is not lower than the lower edge of the LED screen body. The back of the LED screen housing is connected to the slider portion of the sliding module, and the slide rail portion of the sliding module is fixedly connected to the mounting base.

2. The suspended lifting LED screen with adjustable height according to claim 1, characterized in that: The length of the internal cavity is not less than the overall length of the electric push rod in its retraction limit state.

3. The suspended lifting LED screen with adjustable height according to claim 1, characterized in that: The shortest alignment distance of the cross-section of the internal cavity is not less than the maximum cross-sectional diameter of the push rod body of the electric push rod.

4. A height-adjustable suspended lifting LED screen according to claim 1, characterized in that: An elastic rubber ring is provided at the lower part of the internal cavity, and the elastic rubber ring is sleeved on the electric push rod.

5. A height-adjustable suspended lifting LED screen according to claim 1, characterized in that: A limit sensor is provided on the mounting base corresponding to the bottom surface of the LED screen body.

6. A suspended lifting LED screen with adjustable height according to claim 1, characterized in that: An elastic anti-collision strip is provided on the mounting base corresponding to the bottom surface of the LED screen body.

7. A height-adjustable suspended lifting LED screen according to claim 1, characterized in that: The LED screen body includes an LED main screen and LED side screens on both sides of the LED main screen. A connecting hinge is provided between the LED main screen and the LED side screens. Multiple sets of multi-level damping hinges are sleeved on the connecting hinge. The sleeves of the multi-level damping hinges are respectively connected to the LED main screen and the LED side screens on both sides, so that the LED side screens can be rotated, folded or unfolded relative to each other.

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