CN209988105U

CN209988105U - Collapsible unmanned aerial vehicle

Info

Publication number: CN209988105U
Application number: CN201920529962.4U
Authority: CN
Inventors: 郑炜
Original assignee: Chongqing Billion Fly Science And Technology Co Ltd
Current assignee: Chongqing Billion Fly Science And Technology Co Ltd
Priority date: 2019-04-18
Filing date: 2019-04-18
Publication date: 2020-01-24
Anticipated expiration: 2029-04-18

Abstract

The utility model belongs to the technical field of unmanned aerial vehicles, and particularly discloses a foldable unmanned aerial vehicle, which comprises a body, wherein two sides of the body are hinged with arms which are just opposite to each other, a supporting block with teeth is arranged below the arms, the supporting block is connected on the body in a sliding manner, and gears are rotatably connected on the body; the bottom of the machine body is provided with a foot rest, the motor is fixed on the machine body, the output end of the motor is fixed with the foot rest, the output end of the motor is fixed with an iron block, a support is fixed on the motor and is rotatably connected with the output end of the motor, an annular rotating block is rotatably connected on the support, a hollow groove for separating the rotating block from an output shaft of the motor is formed in the center of the rotating block, the iron block is positioned in the hollow groove of the rotating block and is separated from the rotating block, an electromagnet is arranged in the rotating block and is electrically connected with a battery pack, and the rotating block is in transmission connection with a gear; the utility model aims to solve the problem that the wings and the foot rests can not be folded simultaneously in the prior art.

Description

Collapsible unmanned aerial vehicle

Technical Field

The utility model belongs to the technical field of unmanned aerial vehicle, especially, relate to a collapsible unmanned aerial vehicle.

Background

The unmanned aerial vehicle is originally an aircraft for military use, but is generally applied to civil technology in recent years, and the volume of the unmanned aerial vehicle is also changed from the original size of a real aircraft to the size of a palm of a common person, and is even smaller. Because the horn and the foot rest of unmanned aerial vehicle are in open state, this has caused certain difficulty to unmanned aerial vehicle's accomodation to also occupied not little space.

In order to solve the above technical problems, many foldable unmanned aerial vehicles have appeared, for example, chinese patent with publication number CN207931982U discloses a retractable foot stand for an unmanned aerial vehicle, comprising an unmanned aerial vehicle and two sets of foot stands located at the lower end of the unmanned aerial vehicle, the lower end of the body of the unmanned aerial vehicle is provided with a foot stand accommodating groove and an installation cavity, a stepping motor is arranged in the installation cavity, each set of foot stands is composed of a horizontal support rod and two lifting rods, the horizontal support rod is arranged at the lowest end of the lifting rod, the lifting rod is composed of a plurality of sections of hollow round rods, the diameters of the hollow round rods are sequentially reduced from top to bottom, and are respectively an upper hollow round rod, a hollow round rod and a lower hollow round rod, the outer wall of the upper hollow round rod is welded on the inner wall of the foot stand accommodating groove, the hollow round rod is arranged in the upper hollow round rod, and the hollow round rod can slide up and down in the upper, and the lower hollow round rod can slide up and down in the hollow round rod, a driving shaft is arranged in the mounting cavity, the driving shaft is connected with the driving end of the stepping motor through a transmission assembly, two ends of the driving shaft extend into the foot rest accommodating groove, a take-up pulley is tightly mounted at the tail end of the driving shaft, a spring is arranged in the lifting rod, the upper end of the spring is welded with the inner wall of the upper hollow round rod, the lower end of the spring is welded with the inner wall of the lower hollow round rod, a steel wire rope is tied at the lower end of the spring, and the steel wire rope penetrates through the spring and is wound on the take-up pulley.

Above-mentioned technical scheme can contract unmanned aerial vehicle's foot rest, but can not fold the horn, leads to occupation space still great.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a collapsible unmanned aerial vehicle to solve and to carry out the folding problem simultaneously to wing and foot rest among the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is that: a foldable unmanned aerial vehicle comprises a machine body, wherein two sides of the machine body are hinged with machine arms which are arranged oppositely, a supporting block with teeth is arranged below the machine arms, the supporting block is connected to the machine body in a sliding mode, and gears meshed with the teeth are rotatably connected to the machine body; the bottom of organism is equipped with the foot rest, every foot rest is last all to correspond there is a motor, the motor is fixed on the organism, the output of motor is fixed with the foot rest, be fixed with the iron plate on the output of motor, be fixed with the pillar on the motor, the output of pillar language motor rotates to be connected, it has annular turning block to rotate to be connected with on the pillar, open at the center of turning block has the hollow groove that makes the output shaft separation of turning block and motor, the iron plate is located the hollow inslot of turning block and separates with the turning block, be equipped with the electro-magnet that is used for adsorbing the iron plate in the turning block, the electro-magnet is connected with the group battery electricity, the turning.

The working principle of the technical scheme is as follows: the foot rest is driven by the motor to rotate until the foot rest rotates to be attached to the machine body, so that the foot rest is folded, the rotating block is controlled by the electromagnet to rotate in a clearance mode, when the rotating block rotates, the rotating block drives the gear to rotate, the gear drives the supporting block to move towards the machine body until the supporting block completely loses the supporting effect on the machine arm, and the machine arm swings downwards under the action of self gravity to complete folding of the machine arm; when the rotating block is not rotated, the supporting block keeps supporting the machine arm, the foot rest is folded at the moment, and the machine arm is not folded.

The beneficial effects of this technical scheme lie in: in this scheme, fix the foot rest on the output of motor, utilize the motor drive foot rest to fold up, utilize the motor drive turning block simultaneously, carry out in step folding up the horn, fold up the back simultaneously when horn and foot rest, the space that unmanned aerial vehicle occupied is littleer, compares with prior art, and this device more can practice thrift the space, and unmanned aerial vehicle's placing is more convenient. Simultaneously, at unmanned aerial vehicle flight in-process, only make the foot rest folding, can prevent that unmanned aerial vehicle from receiving the collision at flight in-process foot rest. In this scheme, whether the electro-magnet control turning block in the utilization turning block rotates to whether the control horn folds up with the foot rest simultaneously, satisfies the unmanned aerial vehicle condition of folding up under the different situation.

Furthermore, the machine body is also connected with a limiting block for limiting the swing amplitude of the machine arm in a sliding manner, and a traction wire is fixed between the limiting block and the supporting block.

In this scheme, restrict the wobbling extreme position of horn through the stopper, prevent that the horn upwards swinging is excessive, influence unmanned aerial vehicle's flight effect. Meanwhile, the limiting block and the supporting block clamp the horn, so that the horn is more stable.

Furthermore, a first spring is fixed between the limiting block and the machine body.

In this scheme, be fixed with first spring between organism and stopper, played the effect that resets, make first spring can be quick promote the stopper back initial position, it is spacing to the horn formation once more.

Furthermore, a second spring for buffering the lower swing of the machine arm is fixed on the side wall of the machine body.

In this scheme, be fixed with the second spring on the organism, cushion the horn when swinging down, prevent that the horn direct striking from causing the damage to the horn on the organism.

Furthermore, the electromagnet is connected in the rotating block in a sliding mode, and a third spring is fixed between the electromagnet and the rotating block.

In this scheme, the third spring has played the effect that resets. When the electromagnet is not electrified, the electromagnet retracts into the rotating block under the action of the elastic force of the third spring, the electromagnet is not contacted with the iron block, and the rotating block cannot rotate. After the electromagnet is electrified, attraction force generated between the electromagnet and the iron block overcomes the elastic force of the third spring, the electromagnet is in contact with and attracted with the iron block, and the iron block can drive the electromagnet and the rotating block to rotate.

Drawings

Fig. 1 is a schematic structural view of a foldable unmanned aerial vehicle according to the present invention;

fig. 2 is a schematic structural view of a rotating block portion of fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a machine arm 1, a limiting block 2, a first spring 3, a fixing block 4, a traction wire 5, a supporting block 6, teeth 7, a gear 8, a second spring 9, a machine body 10, a foot rest 11, a motor 12, a support column 13, a rotating block 14, a third spring 15, an electromagnet 16 and an iron block 17.

The embodiment is basically as shown in the attached figures 1-2: a foldable unmanned aerial vehicle comprises a machine body 10, wherein the left side and the right side of the machine body 10 are hinged with machine arms 1 which are oppositely arranged, supporting blocks 6 with teeth 7 are arranged below the machine arms 1, the supporting blocks 6 are horizontally and slidably connected to the machine body 10, limiting blocks 2 for limiting the swing amplitude of the machine arms 1 are also slidably connected above the machine body 10, fixing blocks 4 are fixed above the machine body 10, traction lines 5 are fixed between the limiting blocks 2 and the supporting blocks 6, and first springs 3 are welded between the limiting blocks 2 and the fixing blocks 4; the machine body 10 is rotatably connected with a gear 8 meshed with the teeth 7, and the gear 8 is rotatably connected to the machine body 10 through a rotating shaft; the left side wall and the right side wall of the machine body 10 are welded with second springs 9 used for buffering the downward swing of the machine arm 1, and the second springs 9 are perpendicular to the side walls of the machine body 10.

The left side and the right side of the bottom of the machine body 10 are both provided with motors 12, the motors 12 are positive and negative rotation motors 12, and the motors 12 are connected to the machine body 10 through bolts; the output end of the motor 12 is welded with a foot rest 11 and an iron block 17, the motor is also fixedly connected with a support column 13, and the output shaft of the motor is rotationally connected with the support column 13. An annular rotating block 14 is rotatably connected to the support 13, a hollow groove for separating the rotating block 14 from an output shaft of the motor 12 is formed in the center of the rotating block 14, and an iron block 17 is positioned in the hollow groove of the rotating block 14 and is separated from the rotating block 14. Two blind holes are formed in the inner diameter of the rotating block 14 upwards, an electromagnet 16 for adsorbing an iron block 17 is connected in the blind holes in a sliding mode, and the electromagnet 16 is electrically connected with the battery pack; a third spring 15 is welded between the electromagnet 16 and the rotating block 14. A cross belt is arranged between the rotating block 14 on the left side and the rotating shaft on the left side for transmission, and a cross belt is arranged between the rotating block 14 on the right side and the rotating shaft on the right side for transmission.

The specific implementation process is as follows:

starting the motor 12, the output shaft of the motor 12 rotates and drives the foot rest 11 to rotate until the foot rest 11 rotates to be attached to the bottom surface of the machine body 10, and turning off the motor 12.

When the foot rest 11 is folded without the folding arm 1, the electromagnet 16 is not powered, the electromagnet 16 is still positioned in the blind hole, and the rotation of the iron block 17 does not drive the rotation block 14 to rotate.

When the foot rest 11 needs to be folded, the folding arm 1 is powered on, the electromagnet 16 is pulled by the magnetic force generated by the electromagnet 16 to slide towards the iron block 17 and be adsorbed on the iron block 17, and meanwhile, the electromagnet 16 stretches the third spring 15; at the moment, the rotation of the motor 12 drives the rotating block 14 to rotate, the rotating block 14 drives the gear 8 to reversely rotate through the crossed belt, and the gear 8 drives the supporting block 6 to slide towards the inside of the machine body 10 until the supporting block 6 is separated from the support of the machine arm 1; the supporting shoe 6 passes through 5 pulling stopper 2 of pull wire and slides to organism 10 direction at gliding in-process, and stopper 2 extrudees first spring 3.

After the supporting function of the supporting block 6 is lost, the horn 1 swings downwards under the action of self gravity until the horn strikes on the second spring 9, and the second spring 9 plays a role in buffering the horn 1, so that the horn 1 is prevented from directly striking on the machine body 10.

When the foot rest 11 and the machine arm 1 are folded, the motor 12 is turned off, and the electromagnet 16 is powered off; the magnetic force between the electromagnet 16 and the iron block 17 disappears and the third spring 15 pulls the electromagnet 16 to move to the initial position.

When the horn 1 and the foot rest 11 need to be opened, the motor 12 is started, the motor 12 rotates reversely, and the electromagnet 16 is electrified. According to above-mentioned motion condition reverse motion, supporting shoe 6 can be to organism 10 outer motion to promote horn 1 upwards swing, simultaneously, stopper 2 also can resume the normal position under the spring action of first spring 3, restricts the amplitude of oscillation of horn 1, and stopper 2 and supporting shoe 6 press from both sides tightly horn 1, make horn 1 more firm.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a collapsible unmanned aerial vehicle, includes the organism, the organism both sides are articulated to have the horn to the setting, its characterized in that: a supporting block with teeth is arranged below the machine arm, the supporting block is connected to the machine body in a sliding mode, and a gear meshed with the teeth is connected to the machine body in a rotating mode; the bottom of organism is equipped with the foot rest, every foot rest is last all to correspond there is a motor, the motor is fixed on the organism, the output of motor is fixed with the foot rest, be fixed with the iron plate on the output of motor, be fixed with the pillar on the motor, the output of pillar language motor rotates to be connected, it has annular turning block to rotate to be connected with on the pillar, open at the center of turning block has the hollow groove that makes the output shaft separation of turning block and motor, the iron plate is located the hollow inslot of turning block and separates with the turning block, be equipped with the electro-magnet that is used for adsorbing the iron plate in the turning block, the electro-magnet is connected with the group battery electricity, the turning.

2. The foldable drone of claim 1, characterized in that: the machine body is also connected with a limiting block for limiting the swing amplitude of the machine arm in a sliding manner, and a traction wire is fixed between the limiting block and the supporting block.

3. A foldable drone according to claim 2, characterised in that: a first spring is fixed between the limiting block and the machine body.

4. A foldable drone according to claim 3, characterised in that: and a second spring for buffering the lower swing of the machine arm is fixed on the side wall of the machine body.

5. A foldable drone according to claim 4, characterised in that: the electromagnet is connected in the rotating block in a sliding mode, and a third spring is fixed between the electromagnet and the rotating block.