Lifting platform of vehicle-mounted unmanned aerial vehicle
Technical Field
The invention relates to the technical field of unmanned aerial vehicle transportation, in particular to a lifting platform of a vehicle-mounted unmanned aerial vehicle.
Background
As is well known, unmanned aerial vehicles are widely used in military investigation, fire protection, disaster relief and other occasions, unmanned aerial vehicles are usually carried on vehicles for transportation, existing unmanned aerial vehicle carrying devices with automatic control mainly comprise two types of catapult frames fixed on the roofs, one type of unmanned aerial vehicles needs to be assembled on the ground and fixed on the catapult frames for taking off, the unmanned aerial vehicles are exposed outside and easy to damage in the mode of being convenient to install, the other type of unmanned aerial vehicles are fixed in carriages, manual carrying in and out is needed, a large amount of manpower is needed, collision is easy to occur when carrying unmanned aerial vehicles, the unmanned aerial vehicles are damaged, recycling after tasks are carried out by the unmanned aerial vehicles is needed, manual re-fixing installation or carriage carrying in is also needed, operation is complex, inconvenience is caused, various types of lifting platforms for vehicle carrying unmanned aerial vehicles appear on the market along with continuous development of technology, when the unmanned aerial vehicles need to be used, the lifting platforms are controlled to be lifted through controlling the lifting platforms to be lifted, the lifting platforms are controlled to be lowered when the unmanned aerial vehicles need to be lifted, but most of lifting platforms need to be lifted through controlling lifting platforms to be lifted or lowered through the lifting platforms, and the lifting platforms need to be retracted through the lifting platforms when transporting, and the situation is needed to be low in space occupation.
Disclosure of Invention
In order to overcome the defects in the background art, the invention discloses a lifting platform of a vehicle-mounted unmanned aerial vehicle.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
A lifting platform of a vehicle-mounted unmanned aerial vehicle comprises a frame, hollow upright posts, lifting platforms and telescopic cylinders, wherein the hollow upright posts are arranged at four corner ends of the top of the frame, the lifting platforms with four corner ends corresponding to the four hollow upright posts one by one are arranged above the frame, the table tops of the lifting platforms are horizontal, lifting beams with axes vertical to the axes of the length directions of the lifting platforms corresponding to the axes of the lifting platforms are arranged at two ends of the bottom of the lifting platforms, the inside of each lifting beam is hollow, two ends of each lifting beam extend into the cavities of the corresponding hollow upright posts, openings for the lifting beams to move up and down are arranged at one side of each hollow upright post corresponding to each lifting beam, guide steel ropes are movably arranged in the two lifting beams, one ends of each guide steel rope are fixedly connected with the top ends of the two hollow upright posts at one side of the frame respectively, the other ends of each guide steel rope are fixedly connected with the bottom ends of the two hollow upright posts at the other corresponding to the other side of the frame respectively, transmission beams with the two hollow upright posts at the other corresponding to the other side of the frame, pulley I are arranged at the positions corresponding to the guide steel ropes in the lifting beams, two ends of the corresponding to the guide steel ropes extend into the corresponding to the two guide beams, two guide beams are movably arranged in the transmission beams, two ends of the transmission beams are movably penetrating through the corresponding to the corresponding side beams, two guide beams are correspondingly connected to the two corresponding to the two guide beams, and two bent side beams are correspondingly connected to the corresponding to the two transmission beams, and two corresponding to the two ends are used to the corresponding transmission beams are connected to the two ends.
Preferably, the upper parts and the lower parts of the four hollow upright posts are respectively provided with a positioning device for positioning the four corner ends of the lifting platform.
Preferably, the positioning device comprises a mounting frame, guide teeth, a connecting rod and a linear steering engine, the top end of the mounting frame is correspondingly hinged with the root end of the guide teeth, the linear steering engine is arranged at the bottom end of the mounting frame, one side of the root end of the guide teeth is correspondingly hinged with one end of the connecting rod, and the other end of the connecting rod is correspondingly connected with the telescopic end of the linear steering engine through a spring.
Preferably, the end part of the telescopic end of the telescopic cylinder is provided with a movable pulley block, and one end of the two sections of lifting steel ropes corresponding to the telescopic cylinder is wound around a pulley of the movable pulley block and then is correspondingly and fixedly connected with the bottom of the transmission beam.
Preferably, the hollow upright post is provided with a telescopic dust cover at the position corresponding to the opening.
Preferably, the lifting beam is provided with a bending extending downwards corresponding to the corner end of the lifting platform.
Preferably, an adjusting device for adjusting the tension degree of the guide steel rope is arranged at one end of the guide steel rope, which is connected with the top of the hollow upright post.
Preferably, a rubber pad is arranged at the inner bottom of the hollow upright post.
Preferably, the table top of the lifting platform is provided with an anti-slip pad.
Preferably, the telescopic cylinder is a hydraulic cylinder or an air cylinder.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
The lifting platform of the vehicle-mounted unmanned aerial vehicle is simple in structure, easy to assemble and low in production cost, two sections of lifting steel ropes are movably penetrated in the transmission beam, one ends of the two sections of lifting steel ropes extend out of the side wall of the bottom of the transmission beam and are correspondingly connected with the telescopic ends of the telescopic cylinders, the other ends of the two sections of lifting steel ropes are correspondingly and fixedly connected with one ends of the two lifting beams, which are close to the transmission beam, respectively, namely the lifting platform can be in a horizontal state through the joint acting force of the lifting steel ropes and the guiding steel ropes, the bending positions of the corresponding two sections of lifting steel ropes in the transmission beam are respectively provided with a pulley II for guiding, movable pulley blocks are arranged at the telescopic ends of the telescopic cylinders, and after the pulleys of the movable pulley blocks are wound at the corresponding ends of the two sections of lifting steel ropes and the telescopic cylinders, the lifting platform can be lifted up or down through the movable pulley blocks and the load pressure of the telescopic cylinders can be reduced.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a side view of the present invention;
FIG. 4 is a schematic view of a positioning device;
Fig. 5 is a schematic view of the chain of the present invention.
The device comprises a frame 1, a hollow upright post 2, a lifting platform 3, a telescopic cylinder 4, a transmission beam 5, a lifting beam 6, a lifting beam 7, an opening 8, a guide steel rope 9, a lifting steel rope 10, a positioning device 10-1, a mounting frame 10-2, a guide tooth 10-3, a connecting rod 10-4, a linear steering engine 10-5, a spring 11, a movable pulley block 12 and a dust cover.
Detailed Description
The invention will be explained in more detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the invention.
With reference to the accompanying drawings 1-5, the lifting platform of the vehicle-mounted unmanned aerial vehicle comprises a frame 1, a hollow upright post 2, a lifting platform 3 and a telescopic cylinder 4; the four corner ends of the top of the frame 1 are respectively provided with a hollow upright post 2, the four corner ends above the frame 1 are respectively provided with a lifting platform 3 corresponding to the four hollow upright posts 2 one by one, and the table top of the lifting platform 3 is horizontal; according to the requirement, the table top of the lifting platform 3 is provided with an anti-slip pad which can play a good role in anti-slip, two ends of the bottom of the lifting platform 3 are respectively provided with a lifting beam 6 with an axis which is vertical to the axis of the length direction of the lifting platform 3, and the inside of the lifting beam 6 is hollow, two ends of the lifting beam 6 respectively extend into the hollow cavities of the corresponding hollow upright posts 2, one side of the hollow upright posts 2 corresponding to the lifting beam 6 is provided with an opening 7 which is convenient for the lifting beam 6 to move up and down, according to the requirement, the position of the hollow upright posts 2 corresponding to the opening 7 is provided with a telescopic dust cover 12, the dust cover 12 can prevent foreign matters from entering the hollow upright posts 2 along the opening 7 to cause the lifting of the lifting platform 3 to be blocked, the bottom of the hollow upright posts 2 is provided with rubber pads which can play a role in buffering to prevent the ends of the lifting beam 6 from being in hard contact with the bottoms in the hollow upright posts 2;
A guiding steel rope 8 which movably penetrates through the two lifting beams 6 is arranged in each lifting beam; one end of the two sections of guide steel ropes 8 is correspondingly and fixedly connected with the top ends of the two hollow upright posts 2 on one side of the frame 1; the other ends of the two sections of guide steel ropes 8 are respectively and correspondingly and fixedly connected with the bottom ends of the two corresponding hollow upright posts 2 on the other side of the frame 1, a transmission cross beam 5 with a hollow interior is arranged between the top ends of the two hollow upright posts 2 on the side of the frame 1, and pulleys I for guiding are arranged in the lifting beam 6 at the bending positions corresponding to the guide steel ropes 8; according to the requirement, the angle end of the lifting beam 6 corresponding to the lifting platform 3 is provided with a downward extending bend, namely, the purpose of further lifting the lifting platform 3 can be achieved by extending the lifting beam 6 downwards, so that the table top of the lifting platform 3 is level with the top surface of the hollow upright post 2 or higher than the top surface of the hollow upright post 2, one end of the guide steel rope 8 connected with the top of the hollow upright post 2 is provided with an adjusting device for adjusting the tension degree of the guide steel rope 8, namely, the tension degree of the guide steel rope 8 can be adjusted through the adjusting device, the table top of the lifting platform 3 is prevented from tilting or even turning over due to overtightening or loosening of the guide steel rope 8, two sections of lifting steel ropes 9 are movably penetrated in the transmission beam 5, one ends of the two sections of lifting steel ropes 9 extend out of the bottom side wall of the transmission beam 5 and are correspondingly connected with the telescopic ends of the telescopic cylinders 4, the other ends of the two sections of the lifting steel ropes 9 are respectively correspondingly and fixedly connected with one ends of the two lifting beam 6, namely, the lifting platform 3 can be in a horizontal state by the common acting force of the lifting steel rope 9 and the guide steel rope 8, and the position II corresponding to the two sections of the lifting steel rope 9 in the transmission beam 5 is provided with a bend pulley for guiding according to the requirement, the telescopic end of the telescopic cylinder 4 is provided with a movable pulley block 11, one ends of two sections of lifting steel ropes 9 corresponding to the telescopic cylinder 4 are wound around pulleys of the movable pulley block 11 and then are correspondingly and fixedly connected with the bottom of the transmission beam 5, namely, the lifting platform 3 can be lifted up or down through the movable pulley block 11, meanwhile, the load pressure of the telescopic cylinder 4 can be reduced, a cylinder body of the telescopic cylinder 4 is correspondingly and fixedly connected with the frame 1, namely, the telescopic end of the telescopic cylinder 4 can be controlled to descend to pull the lifting steel ropes 9, the lifting steel ropes 9 drive the lifting platform 3 to ascend, when the telescopic end of the telescopic cylinder 4 ascends, the lifting platform 3 descends automatically under the action of self gravity and enables the lifting steel ropes 9 to be always in a tight body, and the telescopic cylinder 4 is a hydraulic cylinder or a cylinder according to requirements.
In addition, the upper and lower parts of the four hollow upright posts 2 are respectively provided with a positioning device 10 for positioning the four corner ends of the lifting platform 3, the positioning device 10 comprises a mounting frame 10-1, a guide tooth 10-2, a connecting rod 10-3 and a linear steering engine 10-4, the top end of the mounting frame 10-1 is correspondingly hinged with the bottom end of the guide tooth 10-2, the bottom end of the mounting frame 10-1 is provided with the linear steering engine 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, the other end of the connecting rod 10-3 is correspondingly connected with the telescopic end of the linear steering engine 10-4 through a spring 10-5, namely, when the lifting platform 3 is lifted to the highest position, the positioning device 10 positioned on the upper part of the hollow upright post 2 is automatically opened, the top surface of the guide tooth 10-2 is correspondingly abutted against the bottom of the lifting beam 6, so that the lifting platform 3 is prevented from falling down, when the lifting platform 3 needs to descend, the linear steering engine 10-4 acts to pull the spring 10-5 to drive the connecting rod 10-3 to move downwards, the connecting rod 10-3 is driven by the connecting rod 10-3 to drive the top end of the guide tooth 10-2 to rotate around the guide tooth 10-2 to correspondingly hinge the position 10-1, so that the positioning device 10 is automatically positioned on the lowest position of the lifting platform 2 to be closed when the lifting platform 3 is automatically positioned to the lowest position to be opened.
The lifting platform of the vehicle-mounted unmanned aerial vehicle can be used for lifting the lifting platform 3 through the movable pulley block 11 in use, simultaneously reducing the load pressure of the telescopic cylinder 4, the cylinder body of the telescopic cylinder 4 is correspondingly and fixedly connected with the frame 1, namely, the telescopic end of the telescopic cylinder 4 can be controlled to descend to pull the lifting steel rope 9, the lifting steel rope 9 drives the lifting platform 3 to ascend, when the lifting platform 3 ascends to the highest position, the unmanned aerial vehicle can be placed, when the unmanned aerial vehicle needs to be transported, the telescopic end of the telescopic cylinder 4 is controlled to ascend, the lifting platform 3 automatically descends under the action of self gravity, the lifting steel rope 9 is always in a tight body, and when the lifting platform 3 descends to the lowest position, the positioning device 10 positioned at the lower part of the hollow upright post 2 is automatically opened to prevent the lifting platform 3 from accidentally jumping, and the unmanned aerial vehicle can be safely transported.
The invention is not described in detail in the prior art.