LED screen lifting device

Abstract

The utility model relates to the field of LED screen lifting, and discloses an LED screen lifting device which comprises a top seat, supporting assemblies on the two sides and a bottom plate. A lifting lead screw is arranged between the bottom plate and the top seat and driven by a driving motor to rotate forwards and backwards, and the movable nut ascends and descends along the lead screw and drives the LED screen to ascend and descend synchronously through the connecting assembly. A bidirectional air cylinder is arranged at the bottom of the bottom plate and drives the fixed vertical plates on the two sides to move oppositely, the connecting sleeve plates and the connecting protruding plates on the guide inserting plates are driven to stretch out and draw back, and the distance between the two connecting protruding plates is adjusted to be matched with LED screen installation hole positions of different sizes. The storage groove A / B and the extension plate A / B are connected in an inserted mode to prevent separation, and the bearing seat supports the lead screw; the limiting plate, the T-shaped sliding block and the T-shaped sliding groove are matched for guiding and limiting, and vertical stability is guaranteed. The device can be quickly adapted to LED screens of multiple specifications and is stable in lifting.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of LED screen lifting, in particular to a LED screen lifting device. BACKGROUND

[0002] The existing LED screen is usually installed on the fixed wall or support, and cannot be adjusted in height at will, which limits its application range in some occasions, especially in stage performance, exhibition and speech activities, in these activities, in order to provide the best viewing experience, the lifting height of the LED screen needs to be adjusted according to the actual demand.

[0003] The current common method is to connect the LED screen with the lifting device, the existing lifting device has air cylinder, hydraulic cylinder, scissor type lifter, etc., when operating, the LED screen can be installed on the upper side, which is convenient for driving the LED screen lifting adjustment, and the lifting device composed of motor, threaded screw rod and movable nut, when installing, the connecting frame needs to be fixed on the front side of the movable nut in advance, then the back connecting part of the LED screen (the back of the LED screen usually has a mounting hole punched in advance) is fixed with the connecting frame through the screw, when the threaded screw rod is driven to adjust the forward and reverse rotation, the movable nut can drive the LED screen to lift and adjust, but when the LED screen is installed, due to the different sizes of the LED screen, the connecting position of the back will also change correspondingly, so that the connecting frame cannot follow the displacement of the connecting position of the back of the LED screen, once the two cannot be attached and aligned, the screw will also be unable to penetrate, so that the LED screen of different sizes cannot be quickly connected and installed with the lifting device composed of threaded screw rod.

[0004] Therefore, it is necessary to invent a LED screen lifting device. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the problems in the above background technology.

[0006] In order to realize the above purpose, the utility model provides the following technical scheme: a LED screen lifting device, including top seat and support assembly, the support assembly is installed on both sides of top seat, the support assembly lower extreme is provided with bottom plate, the bottom plate bottom is installed with two-way pneumatic cylinder, the bottom plate and top seat between installation have lifting screw rod, the lifting screw rod outside is connected with movable nut, the movable nut front surface is installed with connecting assembly.

[0007] Based on the above features: the LED screen can be installed in advance through screws on the front of the connecting assembly (the back of the LED screen is connected with the front of the connecting assembly, and the LED screen is not drawn in the figure, and the prior art is not specifically described), when the height of the LED screen needs to be adjusted, the lifting screw can be driven to adjust the positive and negative rotation, at this time the movable nut can be adjusted up and down outside the lifting screw, finally the movable nut can drive the LED screen to rise and fall synchronously through the connecting assembly, because the size of the LED screen is different, when facing different sizes of LED screen, the double-way air cylinder can drive the support assembly to move oppositely, at this time the support assembly can synchronously drive the bottom plate and the connecting assembly to extend and retract, and the connecting assembly can be extended according to the size of the LED screen, so that the connecting assembly is attached to the connecting position of the back of the LED screen, thereby facilitating the screw to penetrate and fix, and at the same time, when facing a larger size of the LED screen, the area of the support assembly, the bottom plate and the connecting assembly will also be expanded, thereby improving the stress area.

[0008] Preferably, a driving motor is installed at the top end of the top base, and extension plates A are symmetrically installed on both sides of the top base.

[0009] Based on the above features: the rotating shaft at the output end of the driving motor penetrates through the middle of the top base and is connected with the upper end of the lifting screw, when the driving motor is started, the lifting screw can be driven to adjust the positive and negative rotation, and the extension plates A on both sides of the top base are connected with the support assembly to prevent the support assembly from being separated from the top base when moving oppositely.

[0010] Preferably, the support assembly comprises a fixed vertical plate and a fixed horizontal plate installed on one side of the upper end of the fixed vertical plate, and a receiving groove A is formed in one side of the fixed horizontal plate.

[0011] Based on the above features: the fixed vertical plate and the fixed horizontal plate are of an integrated structure, the extension plates A on both sides of the top base are inserted into the receiving groove A, when the fixed horizontal plate approaches the top base, the extension plates A will be inserted into the receiving groove A, and when the fixed horizontal plate moves away from the top base, the extension plates A will gradually be pulled out of the receiving groove A.

[0012] Preferably, a T-shaped sliding groove is formed in the outer wall of the fixed vertical plate, and an extension plate B is installed on one side of the lower end of the fixed vertical plate close to the bottom plate.

[0013] Based on the above features: the lower end of the fixed vertical plate is connected with both sides of the bottom plate through the extension plate B, and the connecting assembly can be guided and limited through the T-shaped sliding groove, so that the T-shaped sliding groove moves vertically.

[0014] Preferably, a bearing seat is installed at the upper end of the bottom plate, and receiving grooves B are symmetrically formed in both sides of the bottom plate.

[0015] Based on the above features: the bearing seat supports at the bottom of the lifting screw, and the extension plate B is inserted into the receiving groove B to prevent the fixed vertical plate from being separated from the bottom plate.

[0016] Preferably, the connecting assembly comprises a positioning plate and guide insertion plates symmetrically arranged on both sides of the positioning plate, a connecting sleeve plate is arranged outside the guide insertion plates, and a connecting convex plate is arranged outside the connecting sleeve plate.

[0017] Based on the above features: the positioning plate is fixedly connected with the movable nut in the front, and when the movable nut moves up and down, the positioning plate is driven to move synchronously; the connecting sleeve plate is sleeved outside the guide insertion plate, and when the fixed vertical plate moves oppositely, the connecting sleeve plate is driven to move synchronously, and the connecting sleeve plate is connected with the back of the LED screen through the connecting convex plate in the front.

[0018] Preferably, a slot is arranged on one side of the connecting sleeve plate, a limiting plate is fixedly arranged on the side of the connecting sleeve plate away from the slot, and a T-shaped sliding block is arranged on one side of the limiting plate.

[0019] Based on the above features: the guide insertion plate is inserted into the slot on one side of the connecting sleeve plate, and the connecting sleeve plate is limited on both sides of the fixed vertical plate by the limiting plate; the limiting plate is slidably connected with the T-shaped sliding groove through the T-shaped sliding block, so that the connecting sleeve plate and the fixed vertical plate are prevented from being separated.

[0020] The beneficial effects of the utility model are as follows:

[0021] 1. When installing LED screens of different sizes, the distance between the two connecting convex plates can be adjusted according to the size of the LED screen; when adjusting, the bidirectional air cylinder can drive the fixed vertical plate to move oppositely, at this time, the fixed vertical plate moving oppositely will drive the limiting plate and the connecting sleeve plate to move synchronously, and the distance between the connecting convex plates in the front of the two connecting sleeve plates will also be expanded and reduced, so that the connecting convex plate is attached to the connecting position on the back of the LED screen, and then the back of the LED screen is connected with the front of the connecting convex plate by using a screw.

[0022] 2. The upper end of the fixed vertical plate is connected with the extension plate A through the storage groove A, the lower end of the fixed vertical plate is connected with the two sides of the bottom plate through the extension plate B, the guide insertion plate is inserted into the slot on one side of the connecting sleeve plate, and the support assembly is prevented from being separated after moving oppositely; when the support assembly moves oppositely, the connecting sleeve plate is limited on both sides of the fixed vertical plate by the limiting plate, and the limiting plate is slidably connected with the T-shaped sliding groove through the T-shaped sliding block, so that the connecting sleeve plate and the fixed vertical plate are prevented from being separated, and the connecting assembly and the LED screen subjected to up-down adjustment can be kept vertical. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The utility model provides a kind of LED screen lifting device overall structure schematic view;

[0024] Figure 2 A split view of the top seat and support assembly of an LED screen lifting device provided by this utility model;

[0025] Figure 3 A split view of the connecting assembly of an LED screen lifting device provided by this utility model;

[0026] Figure 4 A schematic diagram of the connecting sleeve structure of an LED screen lifting device provided by this utility model.

[0027] In the diagram: 1. Top seat; 11. Drive motor; 12. Extension plate A; 2. Support assembly; 21. Fixed upright plate; 211. T-shaped slide rail; 212. Extension plate B; 22. Fixed horizontal plate; 23. Storage slot A; 3. Base plate; 31. Bearing seat; 32. Storage slot B; 4. Two-way cylinder; 5. Lifting screw; 6. Movable nut; 7. Connecting assembly; 71. Positioning plate; 72. Guide plate; 73. Connecting sleeve plate; 731. Slot; 732. Limiting plate; 733. T-shaped slider; 74. Connecting protrusion plate. Detailed Implementation

[0028] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0029] See attached document Figures 1-4 The present invention provides an LED screen lifting device, including a top base 1 and a support component 2. The support component 2 is installed on both sides of the top base 1. A base plate 3 is provided at the lower end of the support component 2. A two-way cylinder 4 is installed at the bottom of the base plate 3. A lifting screw 5 is installed between the base plate 3 and the top base 1. A movable nut 6 is externally threaded to the lifting screw 5. A connecting component 7 is installed on the front of the movable nut 6.

[0030] The LED screen can be pre-installed on the front of the connecting component 7 using screws (the back of the LED screen is connected to the front of the connecting component 7, and is not shown in the LED screen diagram; the existing technology will not be described in detail). When the height of the LED screen needs to be adjusted, the lifting screw 5 can be driven to rotate forward and backward. At this time, the movable nut 6 can be adjusted up and down outside the lifting screw 5. Finally, the movable nut 6 can drive the LED screen to rise and fall synchronously through the connecting component 7. Since the LED screens are of different sizes, when facing LED screens of different sizes, the bidirectional cylinder 4 can drive the support component 2 to move in opposite directions. At this time, the support component 2 can synchronously drive the base plate 3 and the connecting component 7 to extend and retract. The connecting component 7 can be extended and adjusted according to the size of the LED screen, so that the connection position of the connecting component 7 and the back of the LED screen fits together, thus facilitating screw penetration and fixing. At the same time, when facing a larger LED screen, the area of ​​the support component 2, the base plate 3, and the connecting component 7 will also increase, increasing the force-bearing area.

[0031] Preferably, a drive motor 11 is installed at the top of the top seat 1, and extension plates A12 are symmetrically installed on both sides of the top seat 1.

[0032] The shaft at the output end of the drive motor 11 is connected to the upper end of the lifting screw 5 through the middle of the top seat 1. When the drive motor 11 is started, it can drive the lifting screw 5 to adjust forward and reverse. The two sides of the top seat 1 are connected to the support assembly 2 through the extension plate A12 to prevent the support assembly 2 from separating from the top seat 1 when it moves in opposite directions.

[0033] Preferably, the support component 2 includes a fixed upright plate 21 and a fixed horizontal plate 22 installed on one side of the upper end of the fixed upright plate 21, and a storage groove A23 is provided on one side of the fixed horizontal plate 22.

[0034] The fixed upright plate 21 and the fixed horizontal plate 22 are an integral structure. The extension plates A12 on both sides of the top seat 1 are inserted into the storage slot A23. When the fixed horizontal plate 22 is close to the top seat 1, the extension plate A12 will be inserted into the storage slot A23. When the fixed horizontal plate 22 is away from the top seat 1, the extension plate A12 will be gradually pulled out of the storage slot A23.

[0035] Preferably, a T-shaped groove 211 is provided on the outer wall of the fixed upright plate 21, and an extension plate B212 is installed on the lower end of the fixed upright plate 21 near the bottom plate 3.

[0036] The lower end of the fixed upright plate 21 is connected to both sides of the base plate 3 through the extension plate B212, and the connecting component 7 can be guided and limited by the T-shaped slide groove 211 to keep the T-shaped slide groove 211 moving vertically.

[0037] Preferably, a bearing seat 31 is installed on the upper end of the base plate 3, and storage grooves B32 are symmetrically opened on both sides of the base plate 3.

[0038] The bearing seat 31 is supported at the bottom of the lifting screw 5, and the extension plate B212 is inserted into the storage groove B32 to prevent the fixed plate 21 from separating from the base plate 3.

[0039] Preferably, the connecting component 7 includes a positioning plate 71 and guide plates 72 symmetrically opened on both sides of the positioning plate 71. A connecting sleeve 73 is installed on the outside of the guide plate 72, and a connecting protrusion 74 is installed on the outside of the connecting sleeve 73.

[0040] The positioning plate 71 is fixedly connected to the movable nut 6 on the front. When the movable nut 6 moves up and down, it will drive the positioning plate 71 to move synchronously. The connecting sleeve 73 is fitted outside the guide plate 72. When the fixed upright plate 21 moves in opposite directions, it can drive the connecting sleeve 73 to move synchronously. The connecting sleeve 73 is connected to the back of the LED screen through the connecting protrusion 74 on the front.

[0041] Preferably, a slot 731 is provided on one side of the connecting sleeve 73, and a limiting plate 732 is fixedly installed on the side of the connecting sleeve 73 away from the slot 731. A T-shaped slider 733 is installed on one side of the limiting plate 732.

[0042] The guide plate 72 is inserted into the slot 731 on one side of the connecting sleeve 73, and the connecting sleeve 73 is limited to both sides of the fixed plate 21 by the limiting plate 732. The limiting plate 732 is slidably connected to the T-shaped slide groove 211 by the T-shaped slider 733 to prevent the connecting sleeve 73 from separating from the fixed plate 21.

[0043] The usage process of this utility model is as follows: When facing LED screens of different sizes, the distance between the two connecting protrusions 74 can be adjusted according to the size of the LED screen. During adjustment, the bidirectional cylinder 4 can drive the fixed plate 21 to move in opposite directions. At this time, the upper part of the fixed plate 21 is connected to the extension plate A12 through the storage groove A23, and the lower part is connected to the storage grooves B32 on both sides of the base plate 3 through the extension plate B212. The fixed plate 21 moving in opposite directions will synchronously drive the limiting plate 732 and the connecting sleeve plate 73 to move. Finally, the distance between the connecting protrusions 74 on the front of the two connecting sleeve plates 73 will also expand and shrink, so that the connecting protrusions 74 are in contact with the connection position on the back of the LED screen. Then, the back of the LED screen is connected to the front of the connecting protrusions 74 with the screws. When it is necessary to adjust the height of the LED screen, the lifting screw 5 can be driven to rotate forward and reverse. At this time, the movable nut 6 can be adjusted up and down outside the lifting screw 5. Finally, the movable nut 6 can drive the LED screen to rise and fall synchronously through the connecting component 7.

[0044] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. An LED screen lifting device, comprising a top base (1) and a support assembly (2), wherein the support assembly (2) is installed on both sides of the top base (1), characterized in that: A drive motor (11) is installed at the top of the top seat (1). Extension plates A (12) are symmetrically installed on both sides of the top seat (1). The support assembly (2) includes a fixed vertical plate (21) and a fixed horizontal plate (22) installed on one side of the upper end of the fixed vertical plate (21). A storage groove A (23) is opened on one side of the fixed horizontal plate (22). A T-shaped sliding groove (211) is opened on the outer wall of the fixed vertical plate (21). An extension plate B (212) is installed on the lower end of the fixed vertical plate (21) near the bottom plate (3). A bottom plate (3) is provided at the lower end of the support assembly (2). A bearing seat (31) is installed on the upper end of the bottom plate (3). Storage grooves B (32) are symmetrically opened on both sides of the bottom plate (3). A bidirectional gas valve is installed at the bottom of the bottom plate (3). A cylinder (4) is provided with a lifting screw (5) installed between the base plate (3) and the top seat (1). The lifting screw (5) is externally threaded with a movable nut (6). A connecting component (7) is installed on the front of the movable nut (6). The connecting component (7) includes a positioning plate (71) and guide plates (72) symmetrically opened on both sides of the positioning plate (71). A connecting sleeve plate (73) is installed on the outside of the guide plate (72). A connecting protrusion plate (74) is installed on the outside of the connecting sleeve plate (73). A slot (731) is opened on one side of the connecting sleeve plate (73). A limit plate (732) is fixedly installed on the side of the connecting sleeve plate (73) away from the slot (731). A T-shaped slider (733) is installed on one side of the limit plate (732).

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