Foldable and portable light-weight four-rotor unmanned aerial vehicle

Abstract

The utility model provides a light-weight four-rotor unmanned aerial vehicle which is foldable and portable. Relates to the technical field of unmanned aircrafts. The unmanned aerial vehicle comprises an unmanned aerial vehicle body and a fixing mechanism. The unmanned aerial vehicle comprises an unmanned aerial vehicle body, four storage grooves are formed in the unmanned aerial vehicle body, folding telescopic arms are arranged in the four storage grooves correspondingly, fixing mechanisms and motors are arranged at one ends of the four folding telescopic arms correspondingly, and the four fixing mechanisms are connected with the four motors correspondingly; the fixing mechanism comprises a worm, a supporting plate, a worm gear, a transmission plate, a clamping plate, a telescopic rod, a baffle, a rotating plate and a limiting bolt, one ends of the four folding telescopic arms are rotationally connected with the worm, and one end of the worm is rotationally connected with the supporting plate. The foldable and portable light-weight four-rotor unmanned aerial vehicle has the advantages that the motor can be quickly disassembled, assembled and maintained through cooperation of all the components without the help of tools, and convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned aerial vehicle technical field especially relates to a kind of foldable portable lightweight four-rotor unmanned aerial vehicle. BACKGROUND

[0002] Portable four-rotor unmanned aerial vehicle is retracted to body by folding mechanism, realizes single person carrying, can undertake reconnaissance, survey, information relay, target attack and other civil or military tasks, with low cost, convenient to carry, multi-functional, modularization and other technical features, widely used in various industries, also become one of the hot spots in the field of aircraft development this year;

[0003] In prior art, due to the length limitation of power arm, current portable four-rotor usually needs large space to place folding power arm, thereby increasing the weight and size of body itself, so that carrying load capacity is limited, which limits the improvement of endurance, in view of the above problems, the document with application number: 202322936777.6 discloses a kind of portable unmanned aerial vehicle with folding telescopic power arm, which includes power arm cabin, power arm cabin lower end is sequentially connected with connecting cabin, control and load cabin and photoelectric hanging cabin, satellite navigation antenna is arranged in power arm cabin, flight control system module, data link module and task load module are arranged in control and load cabin, there are four power arm placing grooves on power arm cabin, there is a folding arm in each power arm placing groove, the lower end of folding arm is connected with the rotating shaft in connecting cabin, the central part of folding arm is cavity structure, telescopic arm is located in the cavity structure of folding arm, the end of telescopic arm is provided with brushless DC motor, and the output shaft of brushless DC motor is provided with propeller

[0004] However, the above patent document is found to have the following deficiencies: the existing drive motor is generally fixedly installed at one end of the folding arm, which has the disadvantage that the drive motor cannot be conveniently disassembled and maintained, and the drive motor is generally sealed and wrapped, which greatly reduces the heat dissipation efficiency of the drive motor, thereby affecting the endurance of the unmanned aerial vehicle, and there is room for improvement.

[0005] Therefore, the utility model provides a kind of foldable portable lightweight four-rotor unmanned aerial vehicle to solve the above problems. UTILITY MODEL CONTENTS

[0006] To solve the above technical problems, the utility model provides a kind of foldable portable lightweight four-rotor unmanned aerial vehicle, which comprises: an unmanned aerial vehicle body and a fixing mechanism.

[0007] Four receiving grooves are formed in the unmanned aerial vehicle body, and four folding telescopic arms are arranged in the receiving grooves.

[0008] The fixing mechanism comprises a worm, a supporting plate, a worm wheel, a transmission plate, a clamping plate, an extension rod, a baffle, a rotating plate and a limiting bolt, one end of the four folding telescopic arms is rotationally connected with the worm, one end of the worm is rotationally connected with the supporting plate, the motor is arranged on the supporting plate, and the motor can be quickly disassembled and maintained without the aid of tools through the cooperation between the worm, the worm wheel, the transmission plate, the clamping plate, the baffle and the folding telescopic arm, the convenience is improved, and since the motor is not sealed and wrapped, the heat dissipation effect of the motor can be improved during use of the unmanned aerial vehicle.

[0009] Preferably, one end of the four folding telescopic arms is rotationally connected with three worm wheels, the three worm wheels are in meshing connection with the worm, one side of the three worm wheels is fixedly connected with a transmission plate, one end of the three transmission plates is hingedly connected with a clamping plate, the three clamping plates are in abutment with the motor, the worm and the three worm wheels are driven through rotation of the rotating plate, the three clamping plates are synchronously rotated through the three transmission plates, the three clamping plates are in abutment with the motor, and the motor is limited and fixed.

[0010] Preferably, the top of the three clamping plates is slidably connected with an extension rod, one end of the three extension rods is fixedly connected with a baffle, the three baffles are in contact connection with the motor, the motor is further limited through the three baffles, and the motor is prevented from being separated.

[0011] Preferably, one end of the worm penetrates through the folding telescopic arm and is fixedly connected with a rotating plate, the worm is conveniently rotated, the rotating plate is threadedly connected with a limiting bolt, a plurality of limiting holes are formed in the folding telescopic arm, the limiting bolt is connected with one of the limiting holes, and the rotating plate is limited.

[0012] Preferably, the three worm wheels are fixedly connected with rotating shafts, both ends of the three rotating shafts are rotationally connected with fixed plates one, one end of the eight fixed plates one is fixedly connected with the folding telescopic arm, and the three worm wheels are conveniently rotated.

[0013] Preferably, one side of the three clamping plates is fixedly connected with anti-skid pads, the three anti-skid pads are in contact connection with the motor, stability is improved, and the motor is prevented from sliding.

[0014] Preferably, sliding grooves one are arranged on the three clamping plates, the three telescopic rods are slid in the three sliding grooves one respectively, micro dampers are fixedly installed in the three sliding grooves one, one end of the three micro dampers is fixedly connected with the telescopic rod, and the stability of the motor is further improved.

[0015] Compared with the related art, the foldable and portable lightweight four-rotor unmanned aerial vehicle has the following beneficial effects:

[0016] The foldable and portable lightweight four-rotor unmanned aerial vehicle is characterized in that the worm, the worm wheel, the transmission plate, the clamping plate, the baffle and the folding telescopic arm are cooperatively designed, the motor can be quickly disassembled and maintained without the aid of tools, convenience is improved, and the motor is not sealed and wrapped, so that the heat dissipation effect of the motor is improved during use of the unmanned aerial vehicle. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model provides a kind of foldable portable lightweight four-rotor unmanned aerial vehicle three-dimensional structure schematic diagram for the utility model provides;

[0018] Figure 2 The utility model provides a kind of foldable portable lightweight four-rotor unmanned aerial vehicle fixed mechanism schematic diagram for the utility model provides;

[0019] Figure 3 The utility model provides a kind of foldable portable lightweight four-rotor unmanned aerial vehicle assembly schematic diagram for the utility model provides;

[0020] Figure 4 The utility model provides a kind of foldable portable lightweight four-rotor unmanned aerial vehicle local structure schematic diagram for the utility model provides.

[0021] Marked number in drawing: 1, unmanned aerial vehicle main body;2, storage groove;3, folding telescopic arm;4, fixed mechanism;5, motor;6, limit hole;7, non-slip pad;41, worm;42, supporting plate;43, worm wheel;44, transmission plate;45, clamping plate;46, telescopic rod;47, baffle;48, rotating plate;49, limit bolt. DETAILED DESCRIPTION

[0022] The utility model will be further described in connection with the drawings and embodiment.

[0023] Please combine with Figures 1-4 A foldable portable lightweight four-rotor unmanned aerial vehicle includes: unmanned aerial vehicle main body 1 and fixed mechanism 4.

[0024] Four storage grooves 2 are formed on the unmanned aerial vehicle body 1, and four folding telescopic arms 3 are arranged in the four storage grooves 2. The four folding telescopic arms 3 can be folded and stored in the four storage grooves 2, thereby achieving the effect of folding and storing. The bottom of each folding telescopic arm 3 is provided with a fixing bolt one for limiting the extension of the folding telescopic arm 3. The unmanned aerial vehicle body 1 is provided with four fixing bolts two, which can limit the rotation of the four folding telescopic arms 3. A damper is arranged on the rotating shaft of one end of each folding telescopic arm 3, which can facilitate the folding and storage of the four folding telescopic arms. The four dampers, fixing bolts one and fixing bolts two are common in daily life and belong to the prior art. The skilled person can realize them without further description. One end of each folding telescopic arm 3 is provided with a fixing mechanism 4 and an electric motor 5. The four fixing mechanisms 4 are connected with the four electric motors 5 respectively. The unmanned aerial vehicle body 1 includes a satellite antenna, a flight control module, a light sensing pod, etc. The satellite navigation antenna is arranged in the power arm cabin. The flight control system module, data link module and task load module are arranged in the control and load cabin. The data link module is composed of a picture transmission, a data transmission and an antenna, which realizes the communication transmission between the unmanned aerial vehicle and the ground station. The flight control system module is composed of a flight controller, a magnetometer, a height sensor, a satellite navigation device and an inertial navigation device, which is responsible for the flight path planning, autonomous cruise and positioning calculation of the unmanned aerial vehicle. The specific structure and working principle of the unmanned aerial vehicle body 1 can be referred to the document with the application number 202322936777.6, which is prior art and will not be described in detail.

[0025] The fixing mechanism 4 includes a worm 41, a supporting plate 42, a worm wheel 43, a transmission plate 44, a clamping plate 45, an extension rod 46, a baffle 47, a rotating plate 48 and a limiting bolt 49. One end of each folding telescopic arm 3 is rotatably connected with the worm 41. One end of the worm 41 is rotatably connected with the supporting plate 42. The electric motor 5 is arranged on the supporting plate 42. The worm 41, the worm wheel 43, the transmission plate 44, the clamping plate 45, the baffle 47 and the folding telescopic arm 3 are cooperatively designed, so that the electric motor 5 can be quickly disassembled and maintained without the aid of tools, improving the convenience. Moreover, the electric motor 5 is not sealed, so that the heat dissipation effect of the electric motor 5 can be improved during the use of the unmanned aerial vehicle. The four electric motors 5 are waterproof, which facilitates the flight of the unmanned aerial vehicle in rainy days. The output end of each electric motor 5 is provided with a propeller.

[0026] In the mode, one end of the four folding telescopic arms 3 is rotatably connected with three worm gears 43, the three worm gears 43 are meshingly connected with the worm gear 41, one side of the three worm gears 43 is fixedly connected with a transmission plate 44, one end of the three transmission plates 44 is hingedly connected with a clamping plate 45, the three clamping plates 45 abut against the electric motor 5, the worm gear 41 is driven by the three worm gears 43 by rotating the rotating plate 48, the three worm gears 43 drive the three clamping plates 45 to rotate synchronously through the three transmission plates 44, and the three clamping plates 45 abut against the electric motor 5, so that the electric motor 5 is limited and fixed.

[0027] In the mode, the top of the three clamping plates 45 is slidably connected with a telescopic rod 46, one end of the three telescopic rods 46 is fixedly connected with a baffle 47, the three baffles 47 are in contact with the electric motor 5, and the three baffles 47 can further limit the electric motor 5 to avoid disengagement.

[0028] In the mode, one end of the worm gear 41 penetrates the folding telescopic arm 3 and is fixedly connected with the rotating plate 48, the rotating plate 48 is convenient for rotating the worm gear 41, the rotating plate 48 is screwedly connected with a limiting bolt 49, a plurality of limiting holes 6 are formed in the folding telescopic arm 3, the limiting bolt 49 is connected with one of the plurality of limiting holes 6, and the rotating plate 48 is limited.

[0029] In the mode, the three worm gears 43 are fixedly connected with rotating shafts, the two ends of the three rotating shafts are rotatably connected with fixed plates, one end of the eight fixed plates is fixedly connected with the folding telescopic arm 3, and the three worm gears 43 are convenient for rotating.

[0030] In the mode, one side of the three clamping plates 45 is fixedly connected with anti-skid pads 7, the three anti-skid pads 7 are in contact with the electric motor 5, and the stability of the electric motor 5 is improved.

[0031] In the mode, the three clamping plates 45 are provided with sliding grooves, the three telescopic rods 46 slide in the three sliding grooves, respectively, micro dampers are fixedly installed in the three sliding grooves, one end of the three micro dampers is fixedly connected with the telescopic rod 46, and the stability of the electric motor 5 is further improved.

[0032] The working principle of the foldable portable lightweight four-rotor unmanned aerial vehicle is as follows:

[0033] When the four electric motors 5 need to be disassembled and maintained, the limiting bolt 49 is first rotated and separated from the corresponding limiting hole 6, so that the rotating plate 48 is limited.

[0034] Then, by rotating the rotating plate 48, the worm 41 is rotated on the folding telescopic arm 3 and the supporting plate 42, and the worm 41 is in meshing transmission with the three worm gears 43, so that the three worm gears 43 drive the three transmission plates 44 to rotate by a certain angle respectively, and the three transmission plates 44 drive the three clamping plates 45 to move synchronously respectively, and the three clamping plates 45 and the three stop plates 47 are all separated from the motor 5, so that the purpose of releasing the limiting of the motor 5 is achieved, and the effect of quickly disassembling the motor 5 is achieved.

[0035] When the motor 5 is installed, first, the motor 5 is arranged on the supporting plate 42, then the rotating plate 48 is reversely rotated, the worm 41 is in transmission with the three worm gears 43, the three worm gears 43 drive the three clamping plates 45 to rotate synchronously through the three transmission plates 44 respectively, when one end of the three clamping plates 45 contacts the motor 5, the three stop plates 47 are pulled respectively and are higher than the motor 5, and the three dampers in the three clamping plates 45 are charged through the transmission of the three telescopic rods 46, then the rotating plate 48 is rotated again, the three clamping plates 45 are all in abutment with the motor 5, and the limiting bolt 49 corresponds to one of the plurality of limiting holes 6, so that the effect of limiting and fixing the motor 5 is achieved, finally, the limiting bolt 49 is rotated and connected with the corresponding limiting hole 6, so that the purpose of limiting the rotating plate 48 is achieved.

[0036] Therefore, the effect of conveniently disassembling, maintaining and assembling the motor 5 is achieved, and since the motor 5 is exposed, the heat dissipation effect of the motor 5 is improved during the process of not using the unmanned aerial vehicle, and the endurance of the unmanned aerial vehicle is improved.

[0037] Compared with the related art, the foldable and portable lightweight four-rotor unmanned aerial vehicle has the following beneficial effects: the motor 5 can be quickly disassembled, maintained and assembled without the aid of tools through the cooperation of various components, the convenience is improved, and since the motor 5 is not sealed and wrapped, the heat dissipation effect of the motor 5 is improved during the process of using the unmanned aerial vehicle, and the structure is simple and practical.

[0038] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion according to the content of the utility model specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection range of the utility model.

Claims

1. A foldable portable lightweight four-rotor unmanned aerial vehicle, comprising a unmanned aerial vehicle body (1) and a fixing mechanism (4); Four storage slots (2) are formed in the unmanned aerial vehicle body (1), and a folding telescopic arm (3) is arranged in each of the four storage slots (2); one end of each of the four folding telescopic arms (3) is provided with a fixing mechanism (4) and an electric motor (5), and the four fixing mechanisms (4) are connected with the four electric motors (5) respectively; The fixing mechanism (4) comprises a worm (41), a supporting plate (42), a worm wheel (43), a transmission plate (44), a clamping plate (45), an extension rod (46), a baffle (47), a rotating plate (48) and a limiting bolt (49); one end of each of the four folding telescopic arms (3) is rotatably connected with a worm (41), one end of the worm (41) is rotatably connected with a supporting plate (42), and the electric motor (5) is arranged on the supporting plate (42).

2. The foldable, portable, lightweight quadcopter unmanned aerial vehicle of claim 1, wherein, One end of each of the four folding telescopic arms (3) is rotatably connected with three worm wheels (43), the three worm wheels (43) are meshed and connected with the worm (41), one side of each of the three worm wheels (43) is fixedly connected with a transmission plate (44), one end of each of the three transmission plates (44) is hingedly connected with a clamping plate (45), and the three clamping plates (45) are in abutment with the electric motor (5).

3. The foldable, portable, lightweight quadcopter unmanned aerial vehicle of claim 2, wherein, The top of each of the three clamping plates (45) is slidably connected with an extension rod (46), one end of each of the three extension rods (46) is fixedly connected with a baffle (47), and the three baffles (47) are in contact connection with the electric motor (5).

4. The foldable, portable, and lightweight quadcopter unmanned aerial vehicle according to claim 2, wherein, One end of the worm (41) penetrates through the folding telescopic arm (3) and is fixedly connected with a rotating plate (48).

5. The foldable, portable, lightweight quadcopter unmanned aerial vehicle of claim 4, wherein, The rotating plate (48) is threadedly connected with a limiting bolt (49), a plurality of limiting holes (6) are formed in the folding telescopic arm (3), and the limiting bolt (49) is connected with one of the plurality of limiting holes (6).

6. The foldable, portable, and lightweight quadcopter unmanned aerial vehicle according to claim 2, wherein, Each of the three worm wheels (43) is fixedly connected with a rotating shaft, and both ends of each of the three rotating shafts are rotatably connected with a fixed plate one, one end of each of the eight fixed plates one is fixedly connected with the folding telescopic arm (3).

7. The foldable, portable, and lightweight quadcopter unmanned aerial vehicle according to claim 2, wherein, One side of each of the three clamping plates (45) is fixedly mounted with an antiskid pad (7), and the three antiskid pads (7) are in contact connection with the electric motor (5).

8. The foldable, portable, and lightweight quadcopter unmanned aerial vehicle according to claim 3, wherein, Each of the three clamping plates (45) is provided with a sliding groove one, each of the three extension rods (46) slides in the sliding groove one, a micro damper is fixedly mounted in each of the three sliding grooves one, and one end of each of the three micro dampers is fixedly connected with the extension rod (46).

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