CN110901884A

CN110901884A - Folded cascade unmanned aerial vehicle horn

Info

Publication number: CN110901884A
Application number: CN201911320710.1A
Authority: CN
Inventors: 张立; 邢振林; 艾剑良
Original assignee: Fudan University
Current assignee: Fudan University
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-03-24

Abstract

The invention relates to a foldable unmanned aerial vehicle arm which comprises an upper round tube and a lower round tube, wherein a sleeve is sleeved outside the joint of the upper round tube and the lower round tube, the lower half part of the sleeve is circular and is fixed on the outer wall of the lower round tube, the upper half part of the sleeve is square, the square is provided with three sides, the lower end of the upper round tube extends out of a connecting end, the connecting end is hinged with the end part of the sleeve, a hinged point is positioned at the notch of the upper half part of the sleeve, the upper round tube can be rotated and folded by taking the hinged point as the circle center until the upper round tube is parallel to the lower round tube, a left hoop is fixed on the surface of the upper end part of the sleeve, a right hoop is fixed at the corresponding position of the outer wall of the upper round tube, the left hoop and the right hoops are both in a semicircular. The unmanned aerial vehicle arm can be folded downwards, so that the length of the unmanned aerial vehicle arm is greatly reduced, the convenience of the unmanned aerial vehicle in the transportation process is improved, and the possibility of damage of the unmanned aerial vehicle in the transportation process is reduced.

Description

Folded cascade unmanned aerial vehicle horn

Technical Field

The invention relates to the technical field of unmanned aerial vehicles, in particular to a foldable unmanned aerial vehicle arm.

Background

Unmanned aerial vehicle is unmanned aerial vehicle for short, is the unmanned vehicles who utilizes radio remote control equipment and self-contained program control device to control, and unmanned aerial vehicle is the general name of unmanned aerial vehicle in fact, can divide into from the technical perspective: compared with manned aircrafts, the unmanned fixed wing aircraft, the unmanned vertical take-off and landing aircraft, the unmanned airship, the unmanned helicopter, the unmanned multi-rotor aircraft, the unmanned umbrella wing aircraft and the like have the advantages of small volume, low manufacturing cost, convenient use, low requirement on the battlefield environment, strong battlefield viability and the like. Since the unmanned aircraft has important significance for future air battles, the research and development work of the unmanned aircraft is carried out in all major military countries in the world. In addition, the unmanned aerial vehicle has wide application and has better development prospect in the industries of police, city management, agriculture, geology, meteorology, electric power, emergency rescue and disaster relief, video shooting and the like.

Because unmanned aerial vehicle often self is great, and especially the wing is longer, longer wing lift is big, and the gliding performance is good, and the lift that flies up is big, and the power that needs is very little, can practice thrift a large amount of power, fuel saving. And the wing is usually integral, and can't fold or dismantle, leads to the whole occupation space of unmanned aerial vehicle big, causes inconvenience in transportation or the process of carrying, has increased the cost of transportation. In addition, the tip of wing often has outstanding part, receives the collision extrusion in the transportation, causes the unmanned aerial vehicle horn impaired, influences unmanned aerial vehicle's normal use.

Disclosure of Invention

In order to overcome the defects, the invention provides the foldable unmanned aerial vehicle arm which can be folded downwards, so that the length of the unmanned aerial vehicle arm is greatly reduced, the convenience of the unmanned aerial vehicle in the transportation process is improved, and the possibility of damage of the unmanned aerial vehicle in the transportation process is reduced.

The technical scheme of the invention is as follows:

a foldable unmanned aerial vehicle arm comprises an upper circular tube and a lower circular tube, wherein a sleeve is sleeved outside the joint of the upper circular tube and the lower circular tube, the lower half part of the sleeve is round and is fixed on the outer wall of the lower round pipe, the upper half part of the sleeve is square, the square is provided with three sides, the lower end of the upper round tube extends out of a connecting end, the connecting end is hinged with the end part of the sleeve barrel, the hinged point is positioned at the notch of the upper half part of the sleeve barrel, the upper round pipe can be rotated and folded by taking the hinge point as the circle center until the upper round pipe is parallel to the lower round pipe, the surface of the upper end part of the sleeve is fixed with a left hoop, a right hoop is fixed at a corresponding position on the outer wall of the upper round pipe, the left hoop and the right hoop are both in a semicircular ring shape, when the upper circular tube is positioned above the lower circular tube, the left anchor ear and the right anchor ear are aligned to form a circular ring shape and are connected by bolts and nuts.

The lower half part of the sleeve is fixed on the outer wall of the lower circular tube in a welding mode.

The left anchor ear is fixedly connected with the upper end part of the sleeve, and the right anchor ear is fixedly connected with the upper circular tube in a welding mode.

The unmanned aerial vehicle arm comprises an upper circular tube and a lower circular tube, wherein the upper circular tube is connected with the lower circular tube through a sleeve, the lower section of the sleeve is fixed on the outer wall of the lower circular tube, the upper section of the sleeve is a square with three sides, and a gap is used for reserving space when the upper circular tube is folded downwards. The telescopic upper end fixed surface has left staple bolt, and the outer wall relevant position of lower pipe is fixed with right staple bolt, and when last pipe was located pipe top down, ring shape was constituteed to left staple bolt and right staple bolt, and both are with bolt and nut fixed connection. When unmanned aerial vehicle normally flies, the horn is in the expansion state, goes up the pipe and is located pipe top down, and both are connected fixedly through sleeve and staple bolt, and the connectivity is good, and fixed strength is big, guarantees that unmanned aerial vehicle can normally use the flight. When unmanned aerial vehicle need transport or carry, only need loosen the coupling nut of left staple bolt and right staple bolt, left and right staple bolt is separately, goes up the rotatable 180 degrees of pipe, becomes fold condition, reduces unmanned aerial vehicle's horn length, increases the convenience of unmanned aerial vehicle transportation, ensures unmanned aerial vehicle security in transit simultaneously.

Drawings

Fig. 1 is an elevation view of a foldable unmanned aerial vehicle arm of the present invention in an unfolded state;

fig. 2 is a folded-state elevation view of a foldable unmanned aerial vehicle arm of the present invention;

fig. 3 is a folded top view of the foldable unmanned aerial vehicle arm of the present invention.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Referring to fig. 1-3, the foldable unmanned aerial vehicle arm of the invention comprises an upper circular tube 10 and a lower circular tube 20, wherein a sleeve 30 is sleeved outside the joint of the upper circular tube 10 and the lower circular tube 20, the lower half part 32 of the sleeve 30 is circular and fixed on the outer wall of the lower circular tube 20 in a welding manner, the upper half part 31 of the sleeve 30 is square, the square has three edges, and the gap of the square is used for reserving space when the upper circular tube 10 is folded downwards. The lower end of the upper circular tube 10 extends out of the connecting end 11, the connecting end 11 is hinged to the end of the sleeve 30, the hinge point 12 is located at the notch of the upper half portion 31 of the sleeve 30, and the upper circular tube 10 can be folded by rotating with the hinge point 12 as the center of a circle until being parallel to the lower circular tube 20.

The upper end surface welded fastening of sleeve 30 has left staple bolt 13, and the outer wall relevant position welded fastening of going up pipe 10 has right staple bolt 14, and left staple bolt 13 and right staple bolt 14 are half-circular ring shape, and when last pipe 10 was located pipe 20 top down, left staple bolt 13 and right staple bolt 14 align, constitute ring shape, and both are connected with bolt 15 and nut 16. The bolt 15 and the nut 16 are loosened, and the upper round tube 10 is in an unfixed state and can be turned downwards and folded to be parallel to the lower round tube 20.

When unmanned aerial vehicle normally flies, the horn is in the expansion state, goes up pipe 10 and is located pipe 20 tops down, and both are connected fixedly through sleeve 30 and left and right staple bolt, and the connectivity is good, and fixed strength is big, guarantees that unmanned aerial vehicle can normally fly the use. When unmanned aerial vehicle need transport or carry, only need loosen the coupling nut 16 of left staple bolt 13 and right staple bolt 14, left staple bolt 13 and right staple bolt 14 part, go up the rotatable 180 degrees of pipe 10, become with the fold condition of pipe 20 parallels down, reduce unmanned aerial vehicle's horn overall length, increase the convenience of unmanned aerial vehicle transportation, avoid simultaneously that the unmanned aerial vehicle horn receives the extrusion collision on the way of the transportation, guarantee unmanned aerial vehicle is the security on the way of the transportation.

The above disclosure is only an example of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art should fall within the scope of the present invention.

Claims

1. The utility model provides a folded cascade unmanned aerial vehicle horn, its characterized in that, unmanned aerial vehicle horn comprises last pipe (10) and lower pipe (20), it is equipped with sleeve (30) to go up pipe (10), the outside cover of pipe (20) junction down, lower half (32) of sleeve (30) are circular, fix on pipe (20) outer wall down, and first half (31) of sleeve (30) are square, the square has trilaterally, the lower extreme of going up pipe (10) extends link (11), link (11) are articulated mutually with sleeve (30) tip, and pin joint (12) are located first half (31) breach department of sleeve (30), go up pipe (10) can use pin joint (12) to rotate folding as the centre of a circle to being parallel with pipe (20) down, the upper end surface mounting of sleeve (30) has left staple bolt (13), the outer wall relevant position of going up pipe (10) is fixed with right staple bolt (14), left side staple bolt (13) and right staple bolt (14) are the semicircle ring form, work as when last pipe (10) are located pipe (20) top down, left side staple bolt (13) and right staple bolt (14) align, constitute the ring shape, and both are connected with bolt (15) and nut (16).

2. Foldable unmanned aerial vehicle arm according to claim 1, characterized in that the lower half (32) of the sleeve (30) is fixed to the outer wall of the lower tube (20) by welding.

3. Foldable unmanned aerial vehicle arm of claim 1, characterized in that the left hoop (13) is fixedly connected with the upper end of the sleeve (30), and the right hoop (14) is fixedly connected with the upper circular tube (10) by welding.