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, rotor wings are installed at the front ends of the vehicle arms, the two vehicle arms are arranged in a mirror symmetry mode with respect 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, the rear end of the vehicle arm is sleeved with a soft rubber sleeve, and the soft rubber sleeve is movably connected with the vehicle body 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 present invention relates to the technical field of unmanned aerial vehicles, and in particular to a unmanned aerial vehicle with foldable arms. Background Art

[0002] Rotor drones can be divided into multi-rotor drones, helicopters, autogyro, etc., among which multi-rotor drones are more common. Multi-rotor drones have three or more rotor axes, and common ones are four-axis, six-axis, eight-axis, etc. In order to facilitate users to carry and reduce the space occupied by drones, most of the current drone rotors are foldable, that is, the arms can be folded into the fuselage. Currently, foldable drones on the market generally have problems such as the folding structure cannot be locked, and the folded drone arms have poor flight stability, so they need to be improved. Summary of the invention

[0003] Based on this, it is necessary to provide a drone with foldable arms to address the above problems.

[0004] A drone with foldable arms comprises a fuselage and a plurality of arms, wherein the rear ends of the arms are movably connected to the fuselage via torsion springs, the front ends of the arms are provided with rotors, the two arms are arranged in mirror symmetry with respect to the central axis of the fuselage, a locking piece is arranged between the rear ends of the two arms, the locking piece is movably abutted against the rear end ends of the arms, the rear ends of the arms are covered with soft rubber sleeves, and the soft rubber sleeves are movably abutted against the fuselage.

[0005] Preferably, a hollow rubber tube is provided on the side where the soft rubber sleeve abuts against the fuselage.

[0006] Preferably, the paper locking component includes a rotating shaft and a stop block, the stop block is movably arranged in the fuselage through a pin shaft, the rotating shaft is arranged on the stop block and passes through the fuselage, the stop block is fan-shaped, and the outer arc surface of the stop block movably abuts against the notched corner at the rear end of the arm.

[0007] Preferably, a knob is provided on the top of the rotating shaft.

[0008] Preferably, a hook is provided at the front end of the arm, and a card seat is provided in the body corresponding to the hook.

[0009] Preferably, the snap-fit ​​seat comprises a snap body, a wrench, a spring and a pin, the spring is sleeved on the pin, the pin passes through the wrench and the snap body in sequence, and the lower end of the spring abuts against the plate surface of the snap body.

[0010] The benefits of the present invention are as follows: the torsion spring is used to pop out the aircraft arm, so that the aircraft arm can be quickly popped out and is easy to use; and a locking piece is provided to abut the aircraft arm, so that the aircraft arm can be locked in the unfolded state, and the stability of the arm during flight is better.

[0011] Preferably, the fuselage is streamlined.

[0012] Preferably, a camera is installed at the front end of the fuselage.

[0013] Preferably, the number of the arms is four, and the arms are symmetrically arranged in pairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional schematic diagram of a drone with foldable arms in an unfolded state according to one embodiment;

[0015] Figure 2 A schematic diagram of an explosion of a drone with foldable arms in the unfolded state;

[0016] Figure 3 A three-dimensional schematic diagram of a foldable UAV with foldable arms in a folded state;

[0017] Figure 4 A schematic diagram of an explosion of a drone with foldable arms in a folded state;

[0018] Figure 5 This is a three-dimensional schematic diagram of the machine arm and soft rubber sleeve. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0020] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] like Figures 1 to 5 As shown, a foldable-arm drone comprises a fuselage 1 and a plurality of arms 2, the rear end of the arms 2 being movably connected to the fuselage 1 through a torsion spring 3, the front end of the arms 2 being provided with a rotor 4, the two arms 2 being arranged in mirror symmetry with the central axis of the fuselage 1, a locking member 5 being arranged between the rear ends of the two arms 2, the locking member 5 being movably abutted against the rear end ends of the arms 2, the rear end of the arms 2 being provided with a soft rubber sleeve 7, the soft rubber sleeve 7 being movably abutted against the fuselage 1. Specifically, in this embodiment, the number of arms 2 is four, the arms 2 are symmetrically arranged in pairs, the fuselage 1 adopts a streamlined design, has low wind resistance, and is convenient for accommodating the mirror symmetrical arms 2. The front end of the arms 2 is provided with a rotor 4, and the rotor 4 is driven by a motor, so that the drone can obtain lift and fly. In the middle of the rear ends of the two arms 2, a locking member 5 is provided. The locking member 5 is used to abut against the rear end of the arm 2, so that the arm 2 of the drone remains stable during flight and will not rotate due to wind resistance and other reasons. At the same time, we use a torsion spring 3 to connect the fuselage 1 and the arm 2. When unfolded, the arm 2 can be automatically popped out under the action of the torsion spring 3, without the user having to move the arm 2 out of the fuselage 1 one by one, and the operation is simpler and more convenient. Further, it is understandable that when the torsion spring 3 is used to pop the arm 2 out of the hollow part of the side of the fuselage 1, because the elastic potential energy of the torsion spring 3 is large, once the elastic force is too large, the arm 2 will pop out too fast, and the arm 2 and the fuselage 1 will have an impact collision. Over time, it is easy to cause a structural damage to the collision abutment of the arm 2 and the fuselage 1. Therefore, in order to avoid reducing the impact force of the arm 2 popping out, we set a soft rubber sleeve 7 at the rear end of the arm 2. The soft rubber sleeve 7 can be used to absorb the impact force, protect the arm 2 and the fuselage 1 The structure of the self-structure, improve the service life.

[0023] like Figure 5 As shown, a hollow rubber tube 71 is provided on one side of the soft rubber sleeve 7 abutting against the fuselage 1. Specifically, when the arm 2 pops out, the hollow rubber tube 71 contacts the side wall of the fuselage 1, and the hollow rubber tube 71 and the side wall of the fuselage 1 are cross-connected, with stronger elasticity and toughness, so as to avoid direct contact between the soft rubber sleeve 7 and the side wall of the fuselage 1, and avoid pits and scratches on the side where the soft rubber sleeve 7 and the fuselage 1 are connected for a long time.

[0024] like Figures 1 to 4As shown, the paper lock 5 includes a rotating shaft 51 and a stopper 52. The stopper 52 is movably arranged in the fuselage 1 through a pin shaft. The rotating shaft 51 is arranged on the stopper 52 and penetrates the fuselage 1. The stopper 52 is fan-shaped, and the outer arc surface of the stopper 52 is movably in contact with the missing corner 21 at the rear end of the arm 2. Specifically, when the two arms 2 are deployed for flight, they are ejected from the fuselage 1 by the torsion spring 3 in a straight line. In order to provide a support for the rear end of the arm 2, we drive the stopper 52 to rotate through the rotating shaft 51, so that the fan-shaped surface of the stopper 52 is in contact with the missing corner 21 at the rear end of the arm 2, so that the arm 2 will not rotate due to vibration, wind resistance, etc. When the arm 2 needs to be folded, the rotating shaft 51 is first rotated so that the stop block 52 no longer abuts against the notched corner 21 at the rear end of the arm 2. At this time, the user can rotate the arm 2 to overcome the elastic force of the torsion spring 3 and retract the arm 2 into the body 1 for easy carrying and storage.

[0025] like Figures 1 to 4 As shown, a knob 511 is provided on the top of the rotating shaft 51 , so that the user can rotate the rotating shaft 51 through the knob 511 .

[0026] like Figure 2 , 4 As shown, the front end of the arm 2 is provided with a hook 22, and a clamping seat 6 is provided in the fuselage 1 corresponding to the hook 22. Specifically, when the arm 2 is retracted in the fuselage 1, the torsion spring force of the torsion spring 3 is overcome by the cooperation between the hook 22 and the clamping seat 6, and the arm 2 is retracted in the fuselage 1. In other embodiments, the arm 2 can also be fixed by means of a latch, a rope, or the like.

[0027] like Figure 2 , 4 As shown, the clamping seat 6 includes a clamping body 61, a wrench 62, a spring 63 and a pin 64. The spring 63 is sleeved on the pin 64. The pin 64 sequentially penetrates the wrench 62 and the clamping body 61. The lower end of the spring 63 abuts against the plate surface of the clamping body 1. Specifically, in this embodiment, in order to realize the rapid ejection of the machine arm 2, the hook 22 needs to be quickly separated from the clamping seat 6. The clamping seat 6 designed by us includes the clamping body 61 and the wrench 62. When the machine arm 2 needs to be ejected, the user only needs to press the wrench 62 downward, and use the wrench 62 to drive the clamping body 61 to tilt upward, and the clamping body 61 can be separated from the hook 22, and the machine arm 2 can be ejected from the fuselage 1 under the action of the torsion spring 3. When the user releases the force applied to the wrench 62, the clamping body 61 can be reset under the action of the spring 63, waiting for the next clamping with the hook 22.

[0028] Specifically, a camera is installed at the front end of the fuselage 1, and aerial photography is achieved by using the camera.

[0029] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A drone with foldable arms, characterized in that: The invention comprises a fuselage (1) and a plurality of arms (2), wherein the rear end of the arm (2) is movably connected to the fuselage (1) via a torsion spring (3), a rotor (4) is installed at the front end of the arm (2), the two arms (2) are arranged in mirror symmetry with respect to the central axis of the fuselage (1), a locking member (5) is arranged between the rear ends of the two arms (2), the locking member (5) is movably abutted against the rear end of the arm (2), the rear end of the arm (2) is covered with a soft rubber sleeve (7), and the soft rubber sleeve (7) is movably abutted against the fuselage (1).

2. A drone with foldable arms as claimed in claim 1, characterized in that: A hollow rubber tube (71) is provided on one side of the soft rubber sleeve (7) abutting against the fuselage (1).

3. The drone with foldable arms as claimed in claim 1, characterized in that: The paper locking member (5) comprises a rotating shaft (51) and a stop block (52); the stop block (52) is movably arranged in the machine body (1) via a pin shaft; the rotating shaft (51) is arranged on the stop block (52) and passes through the machine body (1); the stop block (52) is fan-shaped; the outer arc surface of the stop block (52) movably abuts against the notch (21) at the rear end of the machine arm (2).

4. The drone with foldable arms as claimed in claim 3, characterized in that: A knob (511) is provided on the top of the rotating shaft (51).

5. The drone with foldable arms as claimed in claim 3, 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).

6. The drone with foldable arms as claimed in claim 5, 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 (1).

7. The drone with foldable arms as claimed in claim 1, characterized in that: The fuselage (1) is streamlined.

8. The drone with foldable arms as claimed in claim 1, characterized in that: A camera is installed at the front end of the fuselage (1).

9. The drone with foldable arms as claimed in 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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