Lifting platform for LED screen installation

Abstract

The utility model discloses a lifting platform for installing an LED screen. The lifting platform comprises a base and a stabilizing mechanism. A lifting frame is arranged on the upper surface of the base, and a platform is arranged at the upper end of the lifting frame; the stabilizing mechanism comprises supporting plates, guide columns, a sliding frame, a balancing weight and an inclined top plate, the supporting plates are arranged at the left end and the right end of the lower surface of the platform respectively, the guide columns are arranged between the two supporting plates corresponding to the transverse position, the sliding frame is transversely and slidably connected between the two guide columns distributed front and back, and the balancing weight is arranged at the lower end of the sliding frame; according to the lifting platform for installing the LED screen, the gravity center of the platform is automatically adjusted, the probability that the platform topples over due to the fact that the single side of the platform is excessively pressed is reduced, the lifting platform is more stable in use, and the service life of the lifting platform is prolonged. And the installation safety of the LED screen is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to LED screen installation technical field, concretely is a kind of lifting platform for LED screen installation. BACKGROUND

[0002] LED screen is a kind of high-definition display screen, adopts advanced LED technology, by numerous tiny LED module composition, compared with traditional display screen, LED screen uses smaller LED module, so higher resolution can be realized, so LED screen is used more and more in life, in the installation process of LED screen, in order to improve the display effect of LED screen, sometimes LED screen is installed high, in the installation process, installer needs to use lifting platform to assist installation;In prior art, because the high installation of LED screen is mostly carried out outdoors, so the use of scissor-type lifting platform is more, by the rotation of mutually intersecting lifting plate, platform is driven to lift, but part lifting platform in the use process, although the outer edge of platform is provided with protective fence, but the movement of personnel on platform surface can cause the change of the position of platform surface under pressure, and the situation that the side of platform is prone to dumping due to excessive pressure is easily appeared. INVENTION CONTENTS

[0003] The utility model solves the technical problem to overcome the existing defects, provide a kind of lifting platform for LED screen installation, automatically adjust the gravity center of platform, reduce the probability that the side of platform is dumped due to excessive pressure, make the use of lifting platform more stable, improve the safety of LED screen installation, can effectively solve the problems in background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of lifting platform for LED screen installation, including base and stabilizing mechanism;

[0005] Base: its upper surface is equipped with lifting frame, the upper end of lifting frame is equipped with platform;

[0006] Stabilizing mechanism: it includes support plate, guide column, sliding frame, counterweight and inclined top plate, the support plate is respectively arranged in the lower surface left and right ends of platform, the transverse position corresponding two support plates are all equipped with guide column, the transverse sliding connection of two guide columns distributed in front and back is equipped with sliding frame, the lower end of sliding frame is equipped with counterweight, inclined top plate is respectively vertically slidingly connected in the sliding slot of platform middle part, two inclined top plates symmetrically are all installed with sliding frame cooperation, automatically adjust the gravity center of platform, reduce the probability that the side of platform is dumped due to excessive pressure, make the use of lifting platform more stable, improve the safety of LED screen installation.

[0007] Further, the surface of base is equipped with single-chip microcomputer, the input end of single-chip microcomputer is electrically connected to external power supply, controls the start and stop of overall device.

[0008] Further, the lifting frame is composed of lifting plates crossing each other, the lowermost lifting plates are rotationally connected with the base through rotating shaft one, the uppermost lifting plates are rotationally connected with the platform through rotating shaft two, the end of the lifting plate is provided with a rotating hole, a connecting rotating column is rotationally connected between the four rotating holes corresponding in longitudinal position, the outer arc surface of the connecting rotating column is rotationally connected with a rotating plate, a hydraulic push rod is arranged between the two rotating plates corresponding in transverse position, the inside of the base is provided with a hydraulic station, the hydraulic push rods are connected in series between the liquid inlet and outlet of the hydraulic station, the input end of the hydraulic station is electrically connected with the output end of the single-chip microcomputer, and the up-down position of the platform is adjusted.

[0009] Further, the stabilizing mechanism further comprises a pressure plate and a pressure sensor, the pressure sensor is arranged at the bottom wall of the platform, the pressure plate is arranged between the detection ends of the four pressure sensors, and the output end of the pressure sensor is electrically connected with the input end of the single-chip microcomputer, so that the change of the surface pressure of the platform is detected.

[0010] Further, the stabilizing mechanism further comprises an electric push rod and a reset spring, the electric push rod is rotationally connected between the upper surface of the inclined top plate and the inner wall of the platform, the two electric push rods on the same inclined top plate are left-right symmetrical, the two inclined top plates are staggered in front and back, and the input end of the electric push rod is electrically connected with the output end of the single-chip microcomputer, so as to provide power for the movement of the inclined top plate and the reset of the sliding frame.

[0011] Further, the upper end of the sliding frame is rotationally connected with a roller through rotating shaft three, the guide column is located between the two rollers corresponding in vertical position, the guide column is in contact with the roller, and the friction force suffered by the sliding frame during movement is reduced.

[0012] Further, the upper surface of the pressure plate is provided with a platform guardrail, and the edge of the pressure plate is protected.

[0013] Compared with the prior art, the lifting platform for mounting the LED screen has the following advantages:

[0014] The center of gravity of the platform is automatically adjusted, the probability of the platform being tilted due to excessive pressure on one side is reduced, the use of the lifting platform is more stable, and the safety of the LED screen installation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of the utility model;

[0016] Fig. 2 It is a structural schematic view of the stabilizing mechanism of the utility model;

[0017] Fig. 3 It is a structural schematic view of the roller of the utility model.

[0018] In the figure: 1 base, 2 lifting frame, 3 platform, 4 stabilizing mechanism, 41 pressure plate, 42 pressure sensor, 43 support plate, 44 guide column, 45 sliding frame, 46 counterweight, 47 inclined top plate, 48 electric push rod, 49 return spring, 5 roller, 6 connecting rotating column, 7 rotating plate, 8 hydraulic push rod, 9 hydraulic station, 10 single-chip microcomputer, 11 platform guardrail. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] Please refer to Figs. 1-3 The embodiment provides a technical scheme: a lifting platform for LED screen installation, comprising a base 1 and a stabilizing mechanism 4.

[0021] The upper surface of the base 1 is provided with a lifting frame 2, the upper end of the lifting frame 2 is provided with a platform 3, which provides support for the movement of the installer, the surface of the base 1 is provided with a single-chip microcomputer 10, which controls the start and stop of the whole device, the input end of the single-chip microcomputer 10 is electrically connected to an external power supply, the lifting frame 2 is composed of lifting plates that cross each other, the lowermost lifting plates are all rotationally connected to the base 1 through rotating shafts one, the uppermost lifting plates are all rotationally connected to the platform 3 through rotating shafts two, the end of each lifting plate is provided with a rotating hole, and corresponding four rotating holes in the longitudinal position are all rotationally connected with a connecting rotating column 6, the outer arc surface of the connecting rotating column 6 is all rotationally connected with a rotating plate 7, corresponding two rotating plates 7 in the transverse position are all provided with a hydraulic push rod 8, the inside of the base 1 is provided with a hydraulic station 9, the hydraulic push rods 8 are all connected in series between the liquid inlet and outlet of the hydraulic station 9, the input end of the hydraulic station 9 is electrically connected to the output end of the single-chip microcomputer 10, the hydraulic station 9 is started, and power is provided for the extension and contraction of the hydraulic push rod 8, when the hydraulic push rod 8 is retracted, the distance between the two connecting rotating columns 6 is reduced, thereby driving the two ends of the lifting plate to move close to each other, the two lifting plates that cross each other relatively rotate and relatively slide, the angle between the lifting plate of the lifting frame 2 and the ground is increased, the platform 3 is lifted upwards, and in the same way, when the hydraulic push rod 8 is elongated, the platform 3 is lowered, so that the installer is conveniently transferred to a specified height to install the LED screen;

[0022] The stabilizing mechanism 4 comprises a support plate 43, a guide column 44, a sliding frame 45, a counterweight 46 and an inclined top plate 47. The support plate 43 is arranged at the left and right ends of the lower surface of the platform 3, respectively. The guide column 44 is arranged between the two support plates 43 corresponding in transverse position. The sliding frame 45 is transversely and slidably connected between the two guide columns 44 distributed in front and back. The counterweight 46 is arranged at the lower end of the sliding frame 45. The inclined top plate 47 is vertically and slidably connected in the sliding groove in the middle of the platform 3. The two inclined top plates 47 are symmetrically arranged on the left and right sides and are cooperatively arranged with the sliding frame 45. When the center of gravity is deviated, the corresponding inclined top plate 47 moves downward. The inclined surface of the inclined top plate 47 applies a horizontal force to the sliding frame 45, so that the sliding frame 45 slides on the outer arc surface of the guide column 44. The position of the counterweight 46 is quickly adjusted, so that the center of gravity of the platform 3 returns to the transverse center position. The stabilizing mechanism 4 further comprises a pressure measuring plate 41 and a pressure sensor 42. The pressure sensor 42 is arranged at the four corners of the bottom wall of the platform 3. The pressure measuring plate 41 is arranged between the detection ends of the four pressure sensors 42. The output end of the pressure sensor 42 is electrically connected to the input end of the single-chip microcomputer 10. The pressure on the surface of the pressure measuring plate 41 is detected by the pressure sensor 42. The single-chip microcomputer 10 calculates the position of the center of gravity of the platform 3 according to the change of the detection data of the pressure measuring plate 41. The stabilizing mechanism 4 further comprises an electric push rod 48 and a return spring 49. The electric push rod 48 is rotatably connected between the upper surface of the inclined top plate 47 and the inner wall of the platform 3. The fixed end of the electric push rod 48 is rotatably connected to the inner wall of the platform 3 through the rotating shaft four. The telescopic end of the electric push rod 48 is rotatably connected to the rotating plate on the upper surface of the inclined top plate 47 through the rotating shaft five. The two electric push rods 48 on the same inclined top plate 47 are symmetrically arranged on the left and right sides. The two inclined top plates 47 are staggered in front and back. The input end of the electric push rod 48 is electrically connected to the output end of the single-chip microcomputer 10, so as to provide power for the downward movement of the inclined top plate 47 and the reset of the sliding frame 45. The upper end of the sliding frame 45 is rotatably connected to the roller 5 through the rotating shaft three. The guide column 44 is located between the two rollers 5 corresponding in vertical position. The guide column 44 is in contact with the roller 5. The relative rotation between the roller 5 and the guide column 44 reduces the frictional force during the movement of the sliding frame 45. The outer edge of the upper surface of the pressure measuring plate 41 is provided with a platform guardrail 11 to prevent people from falling from the outer edge of the pressure measuring plate 41.

[0023] The working principle of the lifting platform for LED screen installation is as follows: in the process of installing the LED screen, a person stands on the surface of the pressure plate 41, the hydraulic station 9 is started by the single-chip microcomputer 10 to provide power for the extension and contraction of the hydraulic push rod 8, when the hydraulic push rod 8 is retracted, the spacing between the two connecting rotating columns 6 is reduced, thereby driving the two ends of the lifting plate to approach each other, the two lifting plates that cross each other relatively rotate and slide, the included angle between the lifting plate of the lifting frame 2 and the ground is increased, the platform 3 is lifted upward, and the installation personnel can be conveniently transferred to a specified height to install the LED screen, in the installation process, the movement of the person on the surface of the pressure plate 41 can cause the pressure position of the platform 3 to change, the center of gravity to deviate, the pressure sensor 42 is used to detect the pressure borne by the surface of the pressure plate 41, the single-chip microcomputer 10 calculates the center of gravity position of the platform 3 according to the change of the detection data of the pressure plate 41, when the center of gravity deviates, the electric push rod 48 is started, the extension end of the electric push rod 48 is elongated, the two electric push rods 48 that are symmetrical to each other are matched, the inclined top plate 47 is pushed downward, the inclined surface of the inclined top plate 47 is used to exert a horizontal force on the sliding frame 45, the elastic force of the return spring 49 is overcome, the sliding frame 45 slides on the outer arc surface of the guide column 44, the position of the counterweight 46 is adjusted, the center of gravity of the platform 3 is restored to the horizontal center position, and the probability of the lifting platform falling is reduced.

[0024] It is worth noting that the single-chip microcomputer 10 disclosed in the above embodiment can be selected from a PIC16F1823-I / P type single-chip microcomputer, the hydraulic station 9, the pressure sensor 42 and the electric push rod 48 can be freely configured according to actual application scenarios, the hydraulic station 9 can be selected from a TE131 type hydraulic station, the pressure sensor 42 can be selected from a DJYL-SX type pressure transmitter, and the electric push rod 48 can be selected from an ANT-52 type electric push rod, and the single-chip microcomputer 10 controls the hydraulic station 9, the pressure sensor 42 and the electric push rod 48 to work, which all adopt the method commonly used in the prior art.

[0025] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion obtained by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A lift platform for LED screen installation, characterized in that: It comprises a base (1) and a stabilizing mechanism (4); The base (1) is provided with a lifting frame (2) on its upper surface, and the upper end of the lifting frame (2) is provided with a platform (3); The stabilizing mechanism (4) comprises a support plate (43), a guide column (44), a sliding frame (45), a counterweight (46) and an inclined top plate (47), the support plate (43) is arranged on the lower surface of the platform (3) at the left and right ends, respectively, and the two support plates (43) corresponding in transverse position are provided with a guide column (44) between them, the two guide columns (44) distributed in front and back are transversely connected with a sliding frame (45) between them, the lower end of the sliding frame (45) is provided with a counterweight (46), and the inclined top plate (47) is vertically connected in the sliding groove in the middle of the platform (3), and the two inclined top plates (47) symmetrically arranged on the left and right are cooperatively installed with the sliding frame (45).

2. The lifting platform for LED screen installation according to claim 1, characterized in that: The surface of the base (1) is provided with a single-chip microcomputer (10), and the input end of the single-chip microcomputer (10) is electrically connected to an external power supply.

3. The lifting platform for LED screen installation according to claim 2, characterized in that: The lifting frame (2) is composed of lifting plates crossing each other, the lowermost lifting plate is rotatably connected with the base (1) through a rotating shaft one, the uppermost lifting plate is rotatably connected with the platform (3) through a rotating shaft two, the end of the lifting plate is provided with a rotating hole, four rotating holes corresponding in longitudinal position are rotatably connected with a connecting rotating column (6) between them, the outer arc surface of the connecting rotating column (6) is rotatably connected with a rotating plate (7), two rotating plates (7) corresponding in transverse position are provided with a hydraulic push rod (8) between them, the inside of the base (1) is provided with a hydraulic station (9), the hydraulic push rod (8) is connected in series between the liquid inlet and outlet of the hydraulic station (9), and the input end of the hydraulic station (9) is electrically connected to the output end of the single-chip microcomputer (10).

4. The lifting platform for LED screen installation according to claim 2, characterized in that: The stabilizing mechanism (4) further comprises a pressure measuring plate (41) and a pressure sensor (42), the pressure sensor (42) is arranged at the four corners of the bottom wall of the platform (3), the pressure measuring plate (41) is arranged between the detection ends of the four pressure sensors (42) on the upper end, and the output end of the pressure sensor (42) is electrically connected to the input end of the single-chip microcomputer (10).

5. The lift platform for LED screen installation of claim 2, wherein: The stabilizing mechanism (4) further comprises an electric push rod (48) and a reset spring (49), the electric push rod (48) is rotatably connected between the upper surface of the inclined top plate (47) and the inner wall of the platform (3), the two electric push rods (48) on the same inclined top plate (47) are symmetrically arranged on the left and right, the two inclined top plates (47) are staggered in front and back, and the input end of the electric push rod (48) is electrically connected to the output end of the single-chip microcomputer (10).

6. The lift platform for LED screen installation of claim 1, wherein: The upper end of the sliding frame (45) is rotatably connected with a roller (5) through a rotating shaft three, the guide column (44) is located between the two rollers (5) corresponding in vertical position, and the guide column (44) is in contact with the roller (5).

7. The lift platform for LED screen installation of claim 4, wherein: The upper surface of the pressure measuring plate (41) is provided with a platform guardrail (11).

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