Unmanned aerial vehicle with foldable vehicle arms

Abstract

The unmanned aerial vehicle comprises a vehicle body and a plurality of vehicle arms, the rear ends of the vehicle arms are movably connected with the vehicle body through torsional springs, rotors are installed at the front ends of the vehicle arms, the two vehicle arms are arranged in a mirror symmetry mode relative to the central axis of the vehicle body, and a locking piece is arranged between the rear ends of the two vehicle arms. The locking piece is movably connected with the rear end of the vehicle arm in an abutting mode. According to the unmanned aerial vehicle, the vehicle arms are popped out through the torsional springs, so that the vehicle arms can be popped out quickly and are convenient to use, and the locking pieces are arranged to abut against the vehicle arms, so that the vehicle arms can be locked in an unfolded state, and the stability of the vehicle arms is better during flight.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field, in particular to a kind of unmanned plane of foldable machine arm. BACKGROUND

[0002] Rotor unmanned plane can be divided into multi-rotor unmanned plane, helicopter, autorotator etc., and the more common is multi-rotor unmanned plane. Multi-rotor unmanned plane has three and above rotor shafts, and commonly has four-axis, six-axis, eight-axis etc. In order to facilitate user to carry, reduce the space volume occupied by unmanned plane, the rotor of current unmanned plane is foldable, i.e. machine arm can be folded into fuselage. The foldable unmanned plane on market currently generally has problems that folding structure cannot be locked, and the flight stability of folded unmanned plane machine arm is poor, thus improvement is needed. SUMMARY

[0003] Therefore, it is necessary to provide an unmanned plane with foldable machine arm for the above problems.

[0004] An unmanned plane with foldable machine arm comprises a fuselage and a plurality of machine arms, the rear end of the machine arm is movably connected to the fuselage through a torsion spring, the front end of the machine arm is provided with a rotor, two machine arms are symmetrically arranged with respect to the central axis of the fuselage, a locking member is arranged between the rear ends of the two machine arms, and the rear end of the machine arm movably abuts against the locking member.

[0005] Preferably, the locking member comprises a rotating shaft and a blocking block, the blocking block is movably arranged in the fuselage through a pin shaft, the rotating shaft is arranged on the blocking block and penetrates the fuselage, the blocking block is in the shape of a sector, and the outer arc surface of the blocking block movably abuts against the notched corner of the rear end of the machine arm.

[0006] Preferably, the top of the rotating shaft is provided with a knob.

[0007] Preferably, the front end of the machine arm is provided with a hook, and a clamping seat corresponding to the hook is arranged in the fuselage.

[0008] Preferably, the clamping seat comprises a buckle body, a wrench, a spring and a pin, the spring is sleeved on the pin, the pin penetrates the wrench and the buckle body in sequence, and the lower end of the spring abuts against the plate surface of the buckle body.

[0009] The utility model has the advantages that the machine arm is quickly popped out by the torsion spring, convenient to use, and the locking member is arranged to abut against the machine arm, so that the machine arm can be locked in the unfolded state, and the stability of the machine arm during flight is better.

[0010] Preferably, the fuselage is in the shape of a streamline.

[0011] Preferably, the front end of the fuselage is provided with a camera.

[0012] Preferably, the number of the arms is four, and the arms are symmetrically arranged in pairs. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 A perspective view of an unfolded state of a UAV with a foldable arm according to an embodiment;

[0014] Fig. 2 An exploded view of an unfolded state of a UAV with a foldable arm;

[0015] Fig. 3 A perspective view of a folded state of a UAV with a foldable arm;

[0016] Fig. 4 An exploded view of a folded state of a UAV with a foldable arm. DETAILED DESCRIPTION

[0017] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without some or all of these specific details. In other instances, well known process steps have not been described in detail in order to avoid unnecessarily obscuring the present application. The specific embodiments of the present application are shown in the drawings and described below.

[0018] It should be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or intervening elements can be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element, or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", and the like as used herein are used for illustration only and do not indicate the only orientation of the present application.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this description, the terms "and / or" includes any and all combinations of one or more of the associated listed items.

[0020] As Figs. 1-4As shown in the figure, a foldable unmanned aerial vehicle includes a fuselage 1 and a plurality of arms 2, the rear end of the arm 2 is movably connected with the fuselage 1 through a torsion spring 3, the front end of the arm 2 is provided with a rotor 4, two arms 2 are symmetrically arranged with the central axis of the fuselage 1 as the mirror image, a locking member 5 is arranged between the rear ends of the two arms 2, and the rear end of the arm 2 movably abuts against the locking member 5. Specifically, in the embodiment, the number of arms 2 is four, the arms 2 are symmetrically arranged in pairs, the fuselage 1 adopts a streamlined design, has small wind resistance, and is convenient for accommodating the symmetrically arranged arms 2. The front end of the arm 2 is provided with the rotor 4, the unmanned aerial vehicle can obtain lift and fly under the driving of the motor. The locking member 5 is arranged in the middle of the rear ends of the two arms 2, and the rear end of the arm 2 abuts against the locking member 5, so that the arms 2 remain stable during flight and do not rotate due to wind resistance and the like. Meanwhile, the torsion spring 3 is used to connect the fuselage 1 and the arms 2, when unfolded, the arms 2 can automatically pop out under the action of the torsion spring 3, and the user does not need to move the arms 2 out of the fuselage 1 one by one, so that the operation is more simple and convenient.

[0021] As shown in the figure, Figs. 1-4 The locking member 5 includes a rotating shaft 51 and a blocking block 52, the blocking block 52 is movably arranged in the fuselage 1 through a pin shaft, the rotating shaft 51 is arranged on the blocking block 52 and penetrates the fuselage 1, the blocking block 52 is in the shape of a sector, and the outer arc surface of the blocking block 52 movably abuts against the notched corner 21 of the rear end of the arm 2. Specifically, when unfolded and used for flight, the two arms 2 are popped out of the fuselage 1 by the torsion spring 3 and are in a straight line, in order to provide support for the rear end of the arm 2, the blocking block 52 is driven to rotate by the rotating shaft 51, so that the sector surface of the blocking block 52 abuts against the notched corner 21 of the rear end of the arm 2, and then the arm 2 does not rotate due to vibration, wind resistance and the like. When the arms 2 need to be folded, the rotating shaft 51 is rotated first, so that the blocking block 52 no longer abuts against the notched corner 21 of the rear end of the arm 2, at this time, the user can rotate the arm 2, overcome the elastic force of the torsion spring 3, and re-store the arm 2 into the fuselage 1, so that the arms 2 are convenient to carry and store.

[0022] As shown in the figure, Figs. 1-4 The top of the rotating shaft 51 is provided with a knob 511, so that the user can rotate the rotating shaft 51 through the knob 511.

[0023] As shown in the figure, Fig. 2 , 4 The front end of the arm 2 is provided with a hook 22, and the fuselage 1 is provided with a clamping seat 6 corresponding to the hook 22. Specifically, when the arm 2 is stored in the fuselage 1, the arm 2 is stored in the fuselage 1 by overcoming the torsion spring force of the torsion spring 3 through the cooperation between the hook 22 and the clamping seat 6, in other embodiments, the arm 2 can also be fixed through the way of a bolt or a rope.

[0024] AsFig. 2 、 4 As shown, the connecting seat 6 includes a connecting body 61, a wrench 62, a spring 63, and a pin 64. The spring 63 is sleeved on the pin 64, which passes through the wrench 62 and the connecting body 61 in sequence. The lower end of the spring 63 abuts against the plate surface of the connecting body 61. Specifically, in this embodiment, to quickly eject the arm 2, the hook 22 needs to be quickly separated from the connecting seat 6. The connecting seat 6 designed includes the connecting body 61 and the wrench 62. To eject the arm 2, the user simply presses down on the wrench 62, which drives the connecting body 61 upward, separating the connecting body 61 from the hook 22. The arm 2 is then ejected from the body 1 under the action of the torsion spring 3. When the user releases the force applied to the wrench 62, the connecting body 61 returns to its original position under the action of the spring 63, ready to engage with the hook 22 again.

[0025] Specifically, a camera is installed at the front end of the fuselage 1, and aerial photography is achieved by using the camera.

[0026] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A drone with foldable arms, characterized by: The invention comprises a fuselage (1) and a plurality of arms (2), wherein the rear ends of the arms (2) are movably connected to the fuselage (1) via torsion springs (3), the front ends of the arms (2) are provided with rotors (4), the two arms (2) are arranged in mirror symmetry with respect to the central axis of the fuselage (1), a locking member (5) is provided between the rear ends of the two arms (2), and the locking member (5) is movably abutted against the rear end ends of the arms (2).

2. The UAV with foldable arms according to claim 1, characterized in that: The locking member (5) comprises a rotating shaft (51) and a stop block (52); the stop block (52) is movably arranged in the fuselage (1) via a pin shaft; the rotating shaft (51) is arranged on the stop block (52) and passes through the fuselage (1); the stop block (52) is fan-shaped; the outer arc surface of the stop block (52) movably abuts against the notched corner (21) at the rear end of the arm (2).

3. The UAV with foldable arms according to claim 2, characterized in that: A knob (511) is provided on the top of the rotating shaft (51).

4. The UAV with foldable arms according to claim 2, characterized in that: A hook (22) is provided at the front end of the machine arm (2), and a clamping seat (6) is provided in the machine body (1) corresponding to the hook (22).

5. The UAV with foldable arms according to claim 4, characterized in that: The snap-fit ​​seat (6) comprises a snap-fit ​​body (61), a wrench (62), a spring (63) and a pin (64); the spring (63) is sleeved on the pin (64); the pin (64) passes through the wrench (62) and the snap-fit ​​body (61) in sequence; the lower end of the spring (63) abuts against the plate surface of the snap-fit ​​body (61).

6. The UAV with foldable arms according to claim 1, characterized in that: The fuselage (1) is streamlined.

7. The UAV with foldable arms according to claim 1, characterized in that: A camera is installed at the front end of the fuselage (1).

8. The UAV with foldable arms according to claim 1, characterized in that: The number of the machine arms (2) is four, and the machine arms (2) are symmetrically arranged in pairs.

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