CN216509004U

CN216509004U - Miniature unmanned aerial vehicle that can fold automatically and expand

Info

Publication number: CN216509004U
Application number: CN202220214843.1U
Authority: CN
Inventors: 严志平; 华媛媛; 屈念蒙; 谢唯佳; 王英子彤
Original assignee: Southwest Petroleum University
Current assignee: Southwest Petroleum University
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-05-13
Anticipated expiration: 2032-01-26

Abstract

The utility model discloses a micro unmanned aerial vehicle capable of being automatically folded and unfolded. In order to reduce the space that unmanned aerial vehicle horn occupy, conveniently accomodate and carry, improve the degree of automation that its horn is folded and is expanded simultaneously. The utility model connects the horn with the electro-hydraulic push rod to rotate, the horn is clung to the machine body when folded, and the paddle can be naturally clung to stop clung to the machine body because of the rest speed. The front and rear arms and the movement mechanism thereof are divided into a front part and a rear part which are respectively arranged on the upper part and the lower part of the machine body, so that the front and rear arms can simultaneously operate and lean against the machine body, the space is saved, and the machine body is compact and reliable. The limiting structure arranged on the machine body and the arc concave design of the side surface enable the motion angle range of the machine arm and the motion mechanism thereof to be limited reasonably.

Description

Miniature unmanned aerial vehicle that can fold automatically and expand

Technical Field

The utility model relates to the field of unmanned aerial vehicles, in particular to a four-axis miniature folding aircraft.

Background

At present, the market of unmanned aerial vehicles is active, and unmanned aerial vehicles are widely used in various industries by virtue of the advantages of convenience in use, low cost, strong developability, various purposes and the like. Along with the primary and secondary unmanned aerial vehicles, the concepts such as multi-machine cluster cooperation and the like are provided, so that the unmanned aerial vehicle is intelligentized, automated and portable. From this, in order to adapt to the development of primary and secondary formula unmanned aerial vehicle platform, save the shared space of single subclass unmanned aerial vehicle horn. The utility model provides a miniature unmanned aerial vehicle capable of being automatically folded and unfolded.

Disclosure of Invention

The utility model aims to provide a miniature unmanned aerial vehicle capable of being automatically folded and unfolded aiming at the existing technical situation.

The technical scheme adopted by the utility model is as follows:

the arms of the four-axis micro unmanned aerial vehicle are fixed on the bottom plate of the aircraft through a group of bolts, so that the arms can rotate freely. One end of the machine arm is used for carrying a motor, the other end of the machine arm is connected with an electro-hydraulic push rod through a group of bolts, and one end of the electro-hydraulic push rod is also fixed on a machine body bottom plate through a group of bolts, so that the electro-hydraulic push rod can stretch out and draw back to control the machine arm to rotate to achieve the purposes of folding and unfolding. Simultaneously, in order to save space to the maximum extent, two front arms and an electro-hydraulic push rod of the micro unmanned aerial vehicle body are arranged on the body part, two rear arms and an electro-hydraulic push rod are arranged on a body bottom plate, and the body bottom plate is connected with the body part through two studs and positioning nuts. Therefore, the two groups of machine arms can be folded without mutual interference, and the space is saved. Because dead points may exist when a mechanism formed by the horn and the electro-hydraulic push rod operates, the whole mechanism is damaged because the horn and the electro-hydraulic push rod are in a straight line, and therefore, a limiting structure is arranged on the machine body to prevent the dead points from occurring. Because this design is folding, the horn pastes and leans on the fuselage, and the paddle that the motor was taken on the horn probably just leads to the fact the damage to the fuselage, for this reason, need set up the monitor on miniature unmanned aerial vehicle's the berth storage platform and keep watch on the folding condition, and when this condition appeared, the accessible pause was folding, and short duration starter motor made the paddle rotatory, utilized its rotatory afterspeed to avoid dangerous angle, made it paste the back paddle natural rotation and paste and lean on the solution.

Drawings

Fig. 1 is a schematic view of the unfolding state of the unmanned drone capable of automatically folding and unfolding according to the utility model.

Fig. 2 is a schematic view of the folding state of the unmanned micro-aerial vehicle capable of automatically folding and unfolding.

Fig. 3 is a schematic view of the mounting of the arm moving mechanism and the base plate of the unmanned aerial vehicle capable of automatically folding and unfolding.

Fig. 4 is a schematic view of the arm moving mechanism and the upper part of the body of the unmanned aerial vehicle capable of automatically folding and unfolding.

Fig. 5 is a side view of fig. 1.

In the figure: 1. the mechanical arm comprises a mechanical arm body, 2 bolts, 3 electrohydraulic push rods, 4 gaskets, 5 bottom plates, 6 upper portion of the machine body, 7 motors, 8 blades, 9 studs, 10 nuts and 11 limiting structures.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

The utility model mainly comprises a machine arm 1, a bolt 2, an electro-hydraulic push rod 3, a gasket 4, a bottom plate 5, an upper part 6 of a machine body, a motor 7, a blade 8, a stud 9, a nut 10 and a limit structure 11. The micro unmanned aerial vehicle mainly comprises an upper part and a lower part. In the lower part of the machine body, a machine arm 1 is installed on a bottom plate 5 through a stud 9, one end of the machine arm 1 is used for installing a motor 7 and a paddle 8, the other end of the machine arm is movably connected with a push rod of an electro-hydraulic push rod 3 through a group of bolts 2, the tail end of the electro-hydraulic push rod 3 is installed on the bottom plate 5 through the stud 9, and the machine arm 1 is folded and unfolded through the stretching of the electro-hydraulic push rod 3. In order to ensure that the rotation of the machine arm 1 and the electro-hydraulic push rod 3 is normal, a gasket 4 is arranged between the connection of the machine arm 1, the electro-hydraulic push rod 3 and the bottom plate 5. In order to prevent dead points from occurring in the movement of the horn 1 and the electro-hydraulic push rod 3, the bottom plate 5 is provided with a limiting structure 11 for preventing the horn 1 and the electro-hydraulic push rod 3 from being located on the same straight line. The movable mechanisms of the other arms 1 are designed to be the same.

For more space-saving, the moving mechanism parts of the arm 1 of the micro unmanned aerial vehicle are divided into two groups before and two groups after the body. The motors 7 on the front two groups of machine arms 1 are arranged above the machine arms 1, and the motors 7 on the rear two groups of machine arms 1 are arranged below the machine arms 1, so that the two groups of machine arms 1 can be simultaneously attached to the side edges of the machine body when being folded, and more space is not occupied. The upper part and the lower part of the machine body are connected together through a stud 9, and a nut 10 is used for fastening and positioning. Because the horn 1 of the present invention is folded against the side of the fuselage, the side of the fuselage is provided with a mating inset depression. Simultaneously, paddle 8 probably appears just leading to paddle 8 impaired to the angle of fuselage side in folding process, for this reason, it is right miniature unmanned aerial vehicle retrieve automatic folding in-process at the parking platform and need set up the device of keeping watch on the activity, if above-mentioned condition takes place, can pause folding, short time starter motor 7 utilizes paddle 8 pivoted afterspeed to avoid the folding recovery of dangerous angle.

Claims

1. The utility model provides a miniature unmanned aerial vehicle that can fold automatically and expand, mainly comprises horn (1), bolt (2), electric liquid push rod (3), gasket (4), bottom plate (5), fuselage upper portion (6), motor (7), paddle (8), double-screw bolt (9), nut (10) and limit structure (11), its characterized in that: miniature unmanned aerial vehicle comprises two parts about the fuselage, and electro-hydraulic push rod (3) are connected through bolt (2) in horn (1), and electro-hydraulic push rod (3) and horn (1) are connected on fuselage bottom plate (5) and fuselage upper portion (6) through double-screw bolt (9).

2. The miniature unmanned aerial vehicle capable of being automatically folded and unfolded according to claim 1, wherein: the telescopic driving horn (1) of the electro-hydraulic push rod (3) rotates within a certain angle range to fold and unfold the horn (1), and in order to prevent the horn (1) and the electro-hydraulic push rod (3) from being located on the same straight line, a machine body bottom plate (5) and a machine body upper portion (6) are provided with limiting structures (11).

3. The miniature unmanned aerial vehicle capable of being automatically folded and unfolded according to claim 2, wherein: divide into two sets ofly around unmanned aerial vehicle's horn (1), preceding a set of motor (7) are installed in the top of horn (1), and the below in horn (1) is installed in a set of motor (7) at the back to realize that two sets of horns (1) can not mutually interfere to paste and lean on the fuselage and can practice thrift the space simultaneously and make organism compact structure.

4. The miniature unmanned aerial vehicle capable of being automatically folded and unfolded according to claim 3, wherein: the front and rear groups of machine arms (1) and moving mechanisms formed by electro-hydraulic push rods (3) connected with the front and rear groups of machine arms are respectively arranged on a bottom plate (5) and the upper part (6) of the machine body, and the upper part and the lower part of the machine body are connected through a stud (9) and a nut (10) used for fastening and positioning.

5. The miniature unmanned aerial vehicle capable of being automatically folded and unfolded according to claim 4, wherein: a folding mode that the machine arm (1) is attached to the machine body is adopted, and a recess matched with the shape of the machine arm (1) is formed in the side face of the machine body.