Folding coaxial cylinder type aircraft

By using a coaxial propeller layout and brushless motor design, the problems of rotor torque and weight in drone aircraft have been solved, achieving stable, lightweight, and portable airframes that can be used in emergencies with different battery models.

CN223605804UActive Publication Date: 2025-11-28AVIC HONGRUI (BEIJING) AVIATION TECH CO LTD
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Patent Information

Application Number
CN202520083479.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-14
Publication Date
2025-11-28
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

Existing drones suffer from rotor anti-torque during flight, leading to unstable fuselage attitude, large size and weight, and inconvenience in carrying.

Method used

It adopts a coaxial propeller layout and brushless motor design, and uses two layers of rotors with opposite rotation directions to counteract the rotor's anti-torque. It also features foldable wings and a removable battery storage rack to achieve a stable, lightweight, and portable design.

Benefits of technology

It achieves both aircraft stability and lightweight design, and when folded, it can be carried as personal equipment by individual soldiers, adapting to the emergency needs of different battery models.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a folding coaxial cylinder type aircraft, which relates to the technical field of unmanned aerial vehicles and comprises an undercarriage, a battery compartment arranged at the top of the undercarriage, a camera arranged at the bottom of the battery compartment, a locking ring arranged on the outer side of the battery compartment, a lower rotor wing arranged at the top of the battery compartment, and a power module arranged at the top of the lower rotor wing. The top of the power module is provided with the upper rotor wing, the top of the upper rotor wing is provided with the top bin, the brushless motors are adopted, the upper propeller and the lower propeller adopt the brushless motors as power, and compared with the prior art that coaxial double propellers are driven by one power, redundant mechanical structures are omitted, the weight of the whole aircraft is lighter, and the whole aircraft is smaller.
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Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane technical field especially relates to a kind of folding coaxial cylinder type aircraft. BACKGROUND

[0002] According to the coaxial double-paddle aircraft of Chinese patent announcement No. CN206171810U, the second drive assembly includes a sleeve shaft, the first paddle assembly is slidably connected to the sleeve shaft, the adapter assembly includes a base, a first bearing housed in the base, a connecting piece connected to the first bearing, and a second bearing housed in the connecting piece, the second bearing is slidably connected to the sleeve shaft, the connecting rod is connected to the first paddle assembly at one end and to the other end of the outer wall of the connecting piece at the other end, the connecting rod is connected to the base at one end and to the first drive assembly at the other end, when the first paddle assembly moves towards the second paddle assembly in the direction of the sleeve shaft, the first drive assembly drives the first paddle assembly to move away from the second paddle assembly in sequence through the connecting rod, the adapter assembly and the connecting rod.

[0003] The above-mentioned comparative document and prior art have the following technical problems: the existing unmanned aerial vehicle has rotor counter-torque during flight, which affects the attitude of the vehicle body, causing tilting or instability, and the shape of the vehicle is large and heavy, requiring more power to provide flight and being inconvenient to carry. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the shortcomings in the prior art and provides a folding coaxial cylinder type aircraft.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a folding coaxial cylinder type aircraft, comprising a landing gear, a battery compartment is provided at the top of the landing gear, a camera is provided at the bottom of the battery compartment, a locking ring is provided on the outside of the battery compartment, a lower rotor is provided at the top of the battery compartment, a power module is provided at the top of the lower rotor, an upper rotor is provided at the top of the power module, and a top compartment is provided at the top of the upper rotor.

[0006] Preferably, a metal connecting block is provided on the outside of the bottom of the battery compartment, the metal connecting block is connected to the landing gear through a hinge shaft, a universal shaft is provided at the bottom end of the battery compartment, and the camera is connected to the battery compartment through the universal shaft.

[0007] Preferably, a locking ring is provided on the outside of the top of the battery compartment and on the outside of the bottom of the battery compartment, a switch is provided on the outside of the battery compartment, a battery storage rack is provided inside the battery compartment, and the battery storage rack is connected to the battery compartment through screws.

[0008] Preferably, the switch is electrically connected with the battery element inside the battery compartment, and the outer side of the battery storage rack is provided with different frame grooves.

[0009] Preferably, the inside of the power module is provided with a connecting rod, one side of the connecting rod is provided with a spherical hinge, and the spherical hinge and the connecting rod form a main power element.

[0010] Preferably, the lower rotor and the main shaft and the upper rotor and the main shaft are connected through folding blocks, the bottom of the lower rotor is provided with a lower wing brushless motor, and the top of the upper rotor is provided with an upper wing brushless motor.

[0011] Preferably, the inside of the top compartment is provided with a radar, and the radar is electrically connected with the battery compartment.

[0012] Beneficial effects

[0013] In the utility model, the coaxial propeller layout is adopted, and the rotation directions of the upper rotor and the lower rotor are opposite, so that the rotor counter-torque is offset, and the fuselage is more stable.

[0014] In the utility model, the brushless motor is adopted, and the upper and lower propellers adopt brushless motors as power, compared with the coaxial double propeller adopting one power drive and saving redundant mechanical structure in the prior art, the overall aircraft weight is lighter, and the overall aircraft is more miniaturized.

[0015] In the utility model, the foldable wing is adopted, and the upper and lower propellers are designed to be foldable, and the size after folding is equivalent to that of a thermal cup, so that the foldable wing can be carried on the body as single equipment.

[0016] In the utility model, the battery compartment is adopted, and the battery storage rack inside the battery compartment is detachable, so that the battery storage rack can carry different types of batteries, and emergency treatment is facilitated. DRAWING DESCRIPTION

[0017] Figure 1 It is a perspective view of the utility model;

[0018] Figure 2 It is a front view of the utility model;

[0019] Figure 3 It is a perspective view of the utility model;

[0020] Figure 4 It is an internal structure view of the utility model.

[0021] LEGEND DESCRIPTION:

[0022] 1, landing gear; 2, camera; 3, battery compartment; 301, switch; 302, battery storage rack; 4, locking ring; 5, lower rotor; 501, lower wing brushless motor; 6, power module; 601, connecting rod; 7, upper rotor; 701, upper wing brushless motor; 8, top compartment; 801, radar. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] The specific embodiments of the utility model are described below in combination with the drawings. Embodiment one:

[0026] Reference Figures 1-4The utility model provides a kind of folding coaxial cylinder type aircraft, including landing gear 1, the top of landing gear 1 is equipped with battery compartment 3, the bottom outside of battery compartment 3 is equipped with metal connecting block, metal connecting block is connected between landing gear 1 by hinge shaft, the bottom of battery compartment 3 is equipped with universal shaft, camera 2 is connected between battery compartment 3 by universal shaft, the bottom of battery compartment 3 is equipped with camera 2, the outside of battery compartment 3 is equipped with locking ring 4, the top outside of battery compartment 3 and the bottom outside of battery compartment 3 are equipped with locking ring 4, the outside of battery compartment 3 is equipped with switch 301, the inside of battery compartment 3 is equipped with battery storage rack 302, battery storage rack 302 is connected between battery compartment 3 by screw, switch 301 and battery element between battery compartment 3 inside are electrically connected, the outside of battery storage rack 302 is equipped with different frame slot, the top of battery compartment 3 is equipped with lower rotor 5, the top of lower rotor 5 is equipped with power module 6, the inside of power module 6 is equipped with connecting rod 601, one side of connecting rod 601 is equipped with ball hinge, ball hinge and connecting rod 601 form main power element, the top of power module 6 is equipped with upper rotor 7, and lower rotor 5 and main shaft and upper rotor 7 and main shaft are all connected by folding block, upper and lower propellers are foldable design, the size is equivalent to vacuum cup after folding, can be carried as individual equipment, the bottom of lower rotor 5 is equipped with lower wing brushless motor 501, the top of upper rotor 7 is equipped with upper wing brushless motor 701, upper and lower propellers adopt brushless motor as power, compared with the coaxial double propeller of the prior art, one power drive is adopted to save redundant mechanical structure, the overall aircraft weight is lighter, and the overall aircraft is more miniaturized, the top of upper rotor 7 is equipped with top compartment 8, the inside of top compartment 8 is equipped with radar 801, radar 801 and battery compartment 3 are electrically connected, adopt coaxial propeller layout, and then through the rotation direction of the upper and lower two layers of rotors is opposite, counteracts the anti-torque of rotor, so that the fuselage is more stable. Specific embodiment two:

[0028] Refer to Figure 1 , adopt unique hinge and lock catch mechanism, realize the convenient folding and quick unfolding of coaxial rotor, and ensure high structural stability after unfolding, reduce vibration and noise during flight, and ensure flight safety.

[0029] In summary:

[0030] 1, adopt coaxial propeller layout, realize the rotation direction of the upper and lower two layers of rotors is opposite, counteracts the anti-torque of rotor, so that the fuselage is more stable;

[0031] 2, adopt brushless motor, realize that upper and lower propellers adopt brushless motor as power, so that the overall aircraft weight is lighter, and the overall aircraft is more miniaturized;

[0032] 3, adopt foldable wing, realize that the size and shape are more convenient after folding, and can be carried as individual equipment;

[0033] 4. The battery compartment 3 is adopted, and different models of batteries can be adapted by disassembling the internal battery storage rack 302, which is convenient for emergency use.

[0034] In the utility model, unless another definite provision and limitation, first feature is in second feature "on" or "under" can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but are in contact through other features between them. Moreover, first feature is in second feature "on", "above" and "upper surface" include that first feature is in second feature directly above and obliquely above, or only indicate that first feature horizontal height is higher than second feature. First feature is in second feature "under", "below" and "underneath" include that first feature is in second feature directly below and obliquely below, or only indicate that first feature horizontal height is less than second feature.

[0035] The basic principle, main features and advantages of the utility model are shown and described above. The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A folded coaxial ducted aircraft comprising a landing gear (1), characterized in that: The top of the landing gear (1) is provided with a battery compartment (3), the bottom of the battery compartment (3) is provided with a camera (2), the outer side of the battery compartment (3) is provided with a locking ring (4), the top of the battery compartment (3) is provided with a lower rotor (5), the top of the lower rotor (5) is provided with a power module (6), the top of the power module (6) is provided with an upper rotor (7), and the top of the upper rotor (7) is provided with a top compartment (8).

2. A folded coaxial cylinder vehicle according to claim 1, characterized in that: The bottom outer side of the battery compartment (3) is provided with a metal connecting block, the metal connecting block and the landing gear (1) are connected through a hinge shaft, the bottom end of the battery compartment (3) is provided with a universal shaft, and the camera (2) and the battery compartment (3) are connected through the universal shaft.

3. A folded coaxial cylinder vehicle according to claim 1, wherein: The top outer side of the battery compartment (3) and the bottom outer side of the battery compartment (3) are both provided with a locking ring (4), the outer side of the battery compartment (3) is provided with a switch (301), the inside of the battery compartment (3) is provided with a battery storage rack (302), and the battery storage rack (302) and the battery compartment (3) are connected through screws.

4. A folded coaxial cylinder vehicle according to claim 3, wherein: The switch (301) and the battery element inside the battery compartment (3) are electrically connected, and the outer side of the battery storage rack (302) is provided with different frame grooves.

5. A folded coaxial cylinder vehicle according to claim 1, wherein: The inside of the power module (6) is provided with a connecting rod (601), one side of the connecting rod (601) is provided with a ball hinge, and the ball hinge and the connecting rod (601) form a main power element.

6. A folded coaxial cylinder vehicle according to claim 1, characterized in that: The lower rotor (5) and the main shaft and the upper rotor (7) and the main shaft are connected through folding blocks, the bottom of the lower rotor (5) is provided with a lower wing brushless motor (501), and the top of the upper rotor (7) is provided with an upper wing brushless motor (701).

7. A folded coaxial cylinder vehicle according to claim 1, wherein: The inside of the top compartment (8) is provided with a radar (801), and the radar (801) and the battery compartment (3) are electrically connected.

Citation Information

Patent Citations

  • Coaxial double -oar aircraft

    CN206171810U