A lifting platform for vehicle-mounted unmanned aerial vehicle

Abstract

A lifting platform for a vehicle-mounted drone, which relates to the technical field of drone transportation, is characterized in that it comprises a frame, a hollow column, a lifting platform and a telescopic cylinder; hollow columns are provided at the four corner ends of the top of the frame, a lifting platform is provided above the frame, and the four corner ends correspond to the four hollow columns one by one, and the table top of the lifting platform is horizontal, and lifting beams are provided at both ends of the bottom of the lifting platform, whose axes are perpendicular to the axes of the length direction of the lifting platform, and the lifting beams are hollow inside; the two ends of the lifting beams are respectively extended into the cavities of the corresponding hollow columns, and the side of the hollow column corresponding to the lifting beam is provided with an opening for facilitating the up and down movement of the lifting beam, and the two lifting beams are provided with movable guide steel cables running through them; one end of the two sections of the guide steel cables is respectively and tightly connected to the top ends of the two hollow columns on one side of the frame; the present invention effectively solves the problems of complex structure and low lifting efficiency of the existing lifting platform.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicle transportation, and in particular to a lifting platform for a vehicle-mounted unmanned aerial vehicle. Background Art

[0002] As is known, drones are widely used in military reconnaissance, firefighting, disaster relief and other occasions. Drones are usually carried on vehicles for transportation. There are two main types of existing automatically controlled drone vehicle-mounted devices. One is a catapult fixed on the roof of the vehicle. The drone needs to be assembled on the ground and fixed on the catapult to take off. In this way, the drone is exposed to the outside and is easy to be damaged, and the installation is inconvenient; the other is fixed in the car box, which needs to be manually moved in and out, which is inefficient and requires a lot of manpower. In addition, it is easy to bump and damage the drone when carrying the drone. In the above two ways, the recovery of the drone after completing the mission also needs to be manually re-fixed and installed or moved into the car, which is cumbersome and inconvenient to use. With the continuous development of technology, many types of vehicle-mounted drone lifting platforms have appeared on the market. When the drone is needed, the drone is extended out of the car box by controlling the lifting platform to rise, and the drone is controlled to descend during transportation to be retracted into the car box. However, most lifting platforms control the platform to rise or fall through a scissor-type telescopic frame, and the scissor-type telescopic frame needs to occupy a large space and has low lifting efficiency. This phenomenon needs to be solved urgently. Summary of the invention

[0003] In order to overcome the deficiencies in the background technology, the present invention discloses a lifting platform for a vehicle-mounted unmanned aerial vehicle.

[0004] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme:

[0005] A lifting platform for a vehicle-mounted unmanned aerial vehicle comprises a frame, a hollow column, a lifting platform and a telescopic cylinder; the four corner ends of the top of the frame are each provided with a hollow column, a lifting platform is provided above the frame with four corner ends corresponding to the four hollow columns one by one, and the tabletop of the lifting platform is horizontal, and both ends of the bottom of the lifting platform are provided with lifting beams whose axes are perpendicular to the axis of the length direction of the lifting platform, and the lifting beams are hollow inside; the two ends of the lifting beams are respectively extended into the cavities of the corresponding hollow columns, and the side of the hollow column corresponding to the lifting beam is provided with an opening for facilitating the up and down movement of the lifting beam, and the two lifting beams are provided with movable guide steel cables running through them; one end of the two sections of the guide steel cables is respectively connected to the top ends of the two hollow columns on one side of the frame Correspondingly fastened connections; the other ends of the two sections of guide steel cables are respectively fastened correspondingly to the bottom ends of the two corresponding hollow columns on the other side of the frame, and an internal hollow transmission beam is provided between the top ends of the two hollow columns on this side of the frame, and pulleys I for guiding are provided at the bending parts of the corresponding guide steel cables in the lifting beam; two sections of lifting steel cables are movably passed through the transmission beam, one ends of the two sections of lifting steel cables extend out of the bottom side wall of the transmission beam and are correspondingly connected to the telescopic end of the telescopic cylinder, the other ends of the two sections of lifting steel cables are respectively fastened correspondingly to one end of the two lifting beams close to the transmission beam, and pulleys II for guiding are provided at the bending parts of the corresponding two sections of lifting steel cables in the transmission beam; the cylinder body of the telescopic cylinder is correspondingly fastened to the frame.

[0006] Preferably, positioning devices for positioning the four corner ends of the lifting platform are respectively installed on the upper and lower parts of the four hollow columns.

[0007] Preferably, the positioning device includes a mounting frame, a guide tooth, a connecting rod and a linear servo, the top of the mounting frame is hinged to the bottom end of the guide tooth, the bottom end of the mounting frame is provided with a linear servo, one side of the bottom end of the guide tooth is hinged to one end of the connecting rod, and the other end of the connecting rod is connected to the telescopic end of the linear servo via a spring.

[0008] Preferably, a movable pulley block is provided at the telescopic end of the telescopic cylinder, and one end of the two sections of lifting cables corresponding to the telescopic cylinder is wound around the pulley of the movable pulley block and then fastened to the corresponding bottom of the transmission beam.

[0009] Preferably, a retractable dust cover is provided at a position corresponding to the opening of the hollow column.

[0010] Preferably, the corner end of the lifting beam corresponding to the lifting platform is provided with a bend extending downward.

[0011] Preferably, an adjusting device for adjusting the tension of the guide steel cable is provided at one end of the guide steel cable connected to the top of the hollow column.

[0012] Preferably, a rubber pad is provided at the bottom of the hollow column.

[0013] Preferably, the table top of the lifting platform is provided with an anti-slip mat.

[0014] Preferably, the telescopic cylinder is a hydraulic cylinder or a pneumatic cylinder.

[0015] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects:

[0016] The lifting platform of a vehicle-mounted unmanned aerial vehicle disclosed in the present invention has a simple structure, is easy to assemble and has a low production cost. Two sections of lifting steel cables are movably penetrated in the transmission crossbeam, one end of the two sections of lifting steel cables extends out of the bottom side wall of the transmission crossbeam and is correspondingly connected to the telescopic end of the telescopic cylinder, and the other ends of the two sections of lifting steel cables are respectively and tightly connected to the ends of the two lifting beams close to the transmission crossbeam, that is, the lifting platform can be in a horizontal state through the joint force of the lifting steel cables and the guide steel cables, and the bending parts of the two sections of lifting steel cables in the transmission crossbeam corresponding to the two sections are provided with pulleys II for guiding; the telescopic end of the telescopic cylinder is provided with a movable pulley group, and the ends of the two sections of lifting steel cables corresponding to the telescopic cylinder are wound around the pulley of the movable pulley group and are tightly connected to the bottom of the transmission crossbeam, that is, the rising or falling rate of the lifting platform can be improved by the movable pulley group, and the load pressure of the telescopic cylinder can be reduced at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a front view of the present invention;

[0019] Figure 3 is a side view of the present invention;

[0020] Figure 4 is a schematic diagram of the structure of the positioning device;

[0021] Figure 5 It is a schematic diagram of the chain direction of the present invention.

[0022] In the figure: 1. frame; 2. hollow column; 3. lifting platform; 4. telescopic cylinder; 5. transmission beam; 6. lifting beam; 7. opening; 8. guide steel cable; 9. pulling steel cable; 10. positioning device; 10-1. mounting frame; 10-2. guide tooth; 10-3. connecting rod; 10-4 linear servo; 10-5. spring; 11. movable pulley block; 12. dust cover. DETAILED DESCRIPTION

[0023] The present invention can be explained in detail by the following examples, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0024] Combined with Figures 1 to 5A lifting platform for a vehicle-mounted drone comprises a frame 1, a hollow column 2, a lifting platform 3 and a telescopic cylinder 4; the four corner ends of the top of the frame 1 are each provided with a hollow column 2, and a lifting platform 3 is provided above the frame 1, with four corner ends corresponding to the four hollow columns 2 one by one, and the table top of the lifting platform 3 is horizontal; as needed, the table top of the lifting platform 3 is provided with an anti-skid pad, which can play a good anti-skid role; both ends of the bottom of the lifting platform 3 are provided with a lifting beam 6 whose axis corresponds to the axis in the length direction of the lifting platform 3 and is vertical, and the lifting beam 6 is hollow inside; The two ends of the lifting beam 6 are respectively extended into the cavities of the corresponding hollow columns 2, and an opening 7 is provided on the side of the hollow column 2 corresponding to the lifting beam 6 to facilitate the up and down movement of the lifting beam 6; as needed, a retractable dust cover 12 is provided at the position corresponding to the opening 7 of the hollow column 2, and the dust cover 12 can prevent foreign matter from entering the cavity of the hollow column 2 along the opening 7, causing the lifting and lowering of the lifting platform 3 to be blocked; a rubber pad is provided at the bottom of the hollow column 2, and the rubber pad can play a buffering role to prevent the end of the lifting beam 6 from hard contact with the bottom of the cavity of the hollow column 2;

[0025] The two lifting beams 6 are each provided with a guide steel cable 8 that runs through them; one end of the two sections of the guide steel cable 8 is respectively fastened and connected to the top of the two hollow columns 2 on one side of the frame 1; the other ends of the two sections of the guide steel cable 8 are respectively fastened and connected to the bottom ends of the two corresponding hollow columns 2 on the other side of the frame 1, and an internal hollow transmission crossbeam 5 is provided between the tops of the two hollow columns 2 on this side of the frame 1, and a pulley I for guiding is provided at the bending part corresponding to the guide steel cable 8 in the lifting beam 6; as needed, the corner end of the lifting beam 6 corresponding to the lifting platform 3 is provided with a downwardly extending bending The lifting platform 3 is bent, that is, the lifting beam 6 can be extended downward to further raise the lifting platform 3, so that the table top of the lifting platform 3 can be flush with or higher than the top surface of the hollow column 2; the end of the guide cable 8 connected to the top of the hollow column 2 is provided with an adjusting device for adjusting the tension of the guide cable 8, that is, the tension of the guide cable 8 can be adjusted by the adjusting device to avoid the tilting or even overturning of the table top of the lifting platform 3 due to the excessive tightness or looseness of the guide cable 8; two sections of lifting cables 9 are movably penetrated in the transmission crossbeam 5, and the two sections of lifting cables One end of the cable 9 extends out of the bottom side wall of the transmission beam 5 and is connected to the corresponding telescopic end of the telescopic cylinder 4. The other ends of the two sections of lifting cables 9 are respectively and tightly connected to the ends of the two lifting beams 6 close to the transmission beam 5, that is, the lifting platform 3 can be in a horizontal state through the joint force of the lifting cables 9 and the guide cables 8, and the bending parts of the two sections of lifting cables 9 in the transmission beam 5 are provided with pulleys II for guiding; as needed, the telescopic end of the telescopic cylinder 4 is provided with a movable pulley block 11, and the ends of the two sections of lifting cables 9 corresponding to the telescopic cylinder 4 are wound around the movable pulley block 11. The pulley is correspondingly and tightly connected to the bottom of the transmission crossbeam 5, that is, the rising or falling rate of the lifting platform 3 can be increased by the movable pulley group 11, and the load pressure of the telescopic cylinder 4 can be reduced at the same time; the cylinder body of the telescopic cylinder 4 is correspondingly and tightly connected to the frame 1, that is, the telescopic end of the telescopic cylinder 4 can be controlled to descend to pull the lifting cable 9, and the lifting cable 9 drives the lifting platform 3 to rise. When the telescopic end of the telescopic cylinder 4 rises, the lifting platform 3 automatically descends under the action of its own gravity, and the lifting cable 9 is always in a taut state; according to needs, the telescopic cylinder 4 is a hydraulic cylinder or a pneumatic cylinder.

[0026] In addition, the upper and lower parts of the four hollow columns 2 are respectively equipped with positioning devices 10 for positioning the four corner ends of the lifting platform 3. The positioning device 10 includes a mounting frame 10-1, a guide tooth 10-2, a connecting rod 10-3 and a linear servo 10-4. The top of the mounting frame 10-1 is correspondingly hinged with the bottom end of the guide tooth 10-2, and the bottom end of the mounting frame 10-1 is provided with a linear servo 10-4. One side of the bottom end of the guide tooth 10-2 is correspondingly hinged with one end of the connecting rod 10-3, and the other end of the connecting rod 10-3 is correspondingly connected with the telescopic end of the linear servo 10-4 through a spring 10-5, that is, when the lifting platform 3 rises to the maximum When in the high position, the positioning device 10 located at the top of the hollow column 2 automatically opens, and the top surface of the guide tooth 10-2 contacts the bottom of the lifting beam 6, thereby preventing the lifting platform 3 from accidentally falling. When the lifting platform 3 needs to descend, the linear servo 10-4 pulls the spring 10-5 and then drives the connecting rod 10-3 to move downward. The connecting rod 10-3 drives the top of the guide tooth 10-2 to rotate around the corresponding hinge position of the guide tooth 10-2 and the mounting frame 10-1, thereby closing the positioning device 10; when the lifting platform 3 descends to the lowest position, the positioning device 10 located at the bottom of the hollow column 2 automatically opens to prevent the lifting platform 3 from accidentally jumping.

[0027] The lifting platform for the vehicle-mounted drone described in the present invention can increase the rate of ascent or descent of the lifting platform 3 through the movable pulley group 11 when in use, and can reduce the load pressure of the telescopic cylinder 4 at the same time; the cylinder body of the telescopic cylinder 4 is correspondingly and tightly connected to the frame 1, that is, the telescopic end of the telescopic cylinder 4 can be controlled to descend to pull the lifting cable 9, and the lifting cable 9 drives the lifting platform 3 to rise. When the lifting platform 3 rises to the highest position, the drone can be placed. When the drone needs to be transported, the telescopic end of the telescopic cylinder 4 is controlled to rise, and the lifting platform 3 automatically descends under the action of its own gravity, and the lifting cable 9 is always in a taut state. When the lifting platform 3 descends to the lowest position, the positioning device 10 located at the bottom of the hollow column 2 automatically opens to prevent the lifting platform 3 from accidentally jumping, so that the drone can be safely transported.

[0028] Parts of the present invention not described in detail are prior art.

Claims

1. A lifting platform for a vehicle-mounted drone, characterized by: The invention comprises a frame (1), a hollow column (2), a lifting platform (3) and a telescopic cylinder (4); the four corner ends of the top of the frame (1) are each provided with a hollow column (2); the top of the frame (1) is provided with a lifting platform (3) whose four corner ends correspond to the four hollow columns (2) one by one; the table top of the lifting platform (3) is horizontal; the two ends of the bottom of the lifting platform (3) are each provided with a lifting beam (6) whose axis corresponds to the longitudinal axis of the lifting platform (3) and is perpendicular to the longitudinal axis; the lifting beam (6) is hollow inside; the two ends of the lifting beam (6) are respectively extended into the cavity of the corresponding hollow column (2); the side of the hollow column (2) corresponding to the lifting beam (6) is provided with an opening (7) for facilitating the lifting beam (6) to move up and down; the two lifting beams (6) are each provided with a guide cable (8) running through them; one end of the two guide cables (8) is respectively connected to the top of the two hollow columns (2) on one side of the frame (1); The two ends of the two guide cables (8) are respectively and correspondingly fastened to the bottom ends of the two hollow columns (2) on the other side of the frame (1), and an internally hollow transmission beam (5) is provided between the top ends of the two hollow columns (2) on the side of the frame (1), and a pulley I for guiding is provided at the bending part of the corresponding guide cables (8) in the lifting beam (6); two sections of lifting cables (9) are movably passed through the transmission beam (5), one end of the two sections of lifting cables (9) extends out of the bottom side wall of the transmission beam (5) and is correspondingly connected to the telescopic end of the telescopic cylinder (4), the other ends of the two sections of lifting cables (9) are respectively and correspondingly fastened to one end of the two lifting beams (6) close to the transmission beam (5), and a pulley II for guiding is provided at the bending part of the corresponding two sections of lifting cables (9) in the transmission beam (5); the cylinder body of the telescopic cylinder (4) is correspondingly and fastened to the frame (1); Positioning devices (10) for positioning the four corner ends of the lifting platform (3) are respectively installed on the upper and lower parts of the four hollow columns (2); The positioning device (10) comprises a mounting frame (10-1), a guide tooth (10-2), a connecting rod (10-3) and a linear servo (10-4); the top end of the mounting frame (10-1) is correspondingly hinged to the bottom end of the guide tooth (10-2); the bottom end of the mounting frame (10-1) is provided with a linear servo (10-4); one side of the bottom end of the guide tooth (10-2) is correspondingly hinged to one end of the connecting rod (10-3); the other end of the connecting rod (10-3) is correspondingly connected to the telescopic end of the linear servo (10-4) via a spring (10-5); A movable pulley block (11) is provided at the telescopic end of the telescopic cylinder (4), and one end of the two pulling cables (9) corresponding to the telescopic cylinder (4) is wound around the pulley of the movable pulley block (11) and then fastened to the bottom of the transmission beam (5).

2. The lifting platform of the vehicle-mounted UAV as claimed in claim 1, characterized in that: A retractable dust cover (12) is provided at a position of the hollow column (2) corresponding to the opening (7).

3. The lifting platform of the vehicle-mounted UAV as claimed in claim 1, characterized in that: The lifting beam (6) is provided with a bend extending downward at the corner end corresponding to the lifting platform (3).

4. The lifting platform of the vehicle-mounted UAV as claimed in claim 1, characterized in that: One end of the guide steel cable (8) connected to the top of the hollow column (2) is provided with an adjustment device for adjusting the tension of the guide steel cable (8).

5. The lifting platform of the vehicle-mounted UAV as claimed in claim 1, characterized in that: A rubber pad is provided at the inner bottom of the hollow column (2).

6. The lifting platform of the vehicle-mounted UAV as claimed in claim 1, characterized in that: The tabletop of the lifting platform (3) is provided with an anti-slip pad.

7. The lifting platform of the vehicle-mounted UAV as claimed in claim 1, characterized in that: The telescopic cylinder (4) is a hydraulic cylinder or a gas cylinder.

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