Multi-rotor unmanned aerial vehicle

Abstract

The multi-rotor unmanned aerial vehicle comprises a vehicle body, a fixing seat is arranged in the middle of the lower end of the vehicle body, rotors are arranged at the left end and the right end of the fixing seat respectively, and the multi-rotor unmanned aerial vehicle further comprises a folding mechanism. The folding mechanism comprises a mounting groove, mounting rods and worm wheels, the mounting groove is formed in the fixing base, the mounting rods are rotationally connected to the left side and the right side in the mounting groove correspondingly, the worm wheels are arranged in the middles of the outer arc faces of the mounting rods correspondingly, and the folding mechanism further comprises a control switch set which is arranged at the right end of the fixing base; the input end of the control switch group is electrically connected with an external power source, the folding mechanism further comprises a connecting rod and a worm, the connecting rod is rotatably connected to the lower side of the interior of the mounting groove, and the occupied space of the multi-rotor unmanned aerial vehicle when the multi-rotor unmanned aerial vehicle is not used can be reduced, so that the multi-rotor unmanned aerial vehicle is convenient to move and store; the problem that the rotors are damaged or deformed in the storage or transportation process is solved, and the service life of the multi-rotor unmanned aerial vehicle is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicles, in particular to a multi-rotor unmanned aerial vehicle. Background Technique

[0002] A multi-rotor unmanned aerial vehicle is an aircraft that uses multiple rotors to provide lift. They are usually composed of multiple motors and rotors. Multi-rotor unmanned aerial vehicles can take off and land vertically without a runway or other special takeoff conditions. By controlling the rotation speed of different rotors, multi-rotor unmanned aerial vehicles can hover stably in the air;

[0003] When in use, a multi-rotor unmanned aerial vehicle usually generates lift by the rotation of the rotors, enabling it to overcome gravity and fly in the air. Each rotor is driven by a motor, and the rotation speed of the motor determines the magnitude of the lift generated by the rotor. During flight, the multi-rotor unmanned aerial vehicle adjusts its attitude by changing the rotation speed of different rotors;

[0004] Existing multi-rotor unmanned aerial vehicles are usually stored and moved after work. However, due to the large floor area of multi-rotor unmanned aerial vehicles when not in use, the rotors are often accidentally impacted or scratched during storage or transportation, which will damage the rotors and thus reduce the service life of the multi-rotor unmanned aerial vehicle. For this reason, we propose a multi-rotor unmanned aerial vehicle. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a multi-rotor unmanned aerial vehicle that can reduce the floor space of the multi-rotor unmanned aerial vehicle when not in use, making it convenient to move and store, solve the problem of damage or deformation of the rotors during storage or transportation, and further extend the service life of the multi-rotor unmanned aerial vehicle, and can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A multi-rotor unmanned aerial vehicle, including a fuselage, a fixed seat is arranged in the middle of the lower end of the fuselage, rotors are respectively arranged at the left and right ends of the fixed seat, and a folding mechanism is further included;

[0007] Folding mechanism: It includes an installation groove, an installation rod and a worm gear. The installation groove is arranged inside the fixed seat, the left and right sides inside the installation groove are respectively rotatably connected with the installation rod, and worm gears are arranged in the middle of the outer arc surface of the installation rod, which can reduce the floor space of the multi-rotor unmanned aerial vehicle when not in use, making it convenient to move and store, solve the problem of damage or deformation of the rotors during storage or transportation, and further extend the service life of the multi-rotor unmanned aerial vehicle.

[0008] Further, it further includes a control switch group which is arranged at the right end of the fixed seat. The input end of the control switch group is electrically connected to an external power supply and can regulate the electrical components inside the device.

[0009] Further, the folding mechanism further includes a connecting rod and a worm. The connecting rod is rotatably connected to the lower side inside the installation groove. Worms are arranged on both the left and right sides of the outer arc surface of the connecting rod. The worms are respectively meshed and connected with the vertically adjacent worm wheels, and can adjust the position of the rotor through the mounting rod.

[0010] Further, the folding mechanism further includes an output rod and bevel gears. The output rod is rotatably connected to the middle of the bottom wall of the installation groove. Bevel gears are arranged on the upper side of the outer arc surface of the output rod and the middle of the outer arc surface of the connecting rod. The two bevel gears are meshed and connected, and can drive the worm wheel to rotate through the worm.

[0011] Further, the folding mechanism further includes a driving motor which is arranged at the middle of the lower end of the fixed seat. The upper end of the output shaft of the driving motor is fixedly connected to the lower end of the output rod. The input end of the driving motor is electrically connected to the output end of the control switch group, and can drive the connecting rod to rotate through the bevel gear.

[0012] Further, it further includes connecting arms and motors. The connecting arms are respectively arranged on the front and rear sides of the outer arc surface of the mounting rod. The connecting arms are both located outside the fixed seat. The motors are all arranged at the upper ends of the connecting arms. The upper ends of the output shafts of the motors are all provided with rotors. The input ends of the motors are electrically connected to the output end of the control switch group. The output shafts of the motors drive the rotors to rotate, thereby driving the multi-rotor drone to move.

[0013] Further, it further includes limit plates which are respectively arranged at the left and right ends of the fixed seat. The limit plates are respectively located above the vertically adjacent connecting arms, and can limit the positions of the connecting arms to prevent the positions of the connecting arms from shifting.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: This multi-rotor drone has the following advantages:

[0015] The worm drives the worm wheel to rotate through meshing connection. During the rotation of the worm wheel, the connecting arm is driven to rotate through the mounting rod. The connecting arm drives the rotor to rotate downward through the motor, and finally the rotor is retracted, thereby reducing the floor space of the multi-rotor drone when not in use, making it convenient to move and store, solving the problem that the rotor is damaged or deformed during storage or transportation, and further extending the service life of the multi-rotor drone. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present utility model;

[0017] Figure 2 This is a schematic structural diagram of the folding mechanism of the present utility model.

[0018] In the figure: 1 body, 2 fixed seat, 3 control switch group, 4 folding mechanism, 41 installation groove, 42 installation rod, 43 worm gear, 44 connecting rod, 45 worm, 46 output rod, 47 bevel gear, 48 driving motor, 5 connecting arm, 6 motor, 7 rotor, 8 limiting plate. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figure 1-2 , this embodiment provides a technical solution: a multi-rotor unmanned aerial vehicle, including a body 1, a fixed seat 2 is provided in the middle of the lower end of the body 1, rotors 7 are respectively provided at the left and right ends of the fixed seat 2, and a folding mechanism 4 is further included;

[0021] Folding mechanism 4: It includes an installation groove 41, an installation rod 42 and a worm gear 43. The installation groove 41 is arranged inside the fixed seat 2. Installation rods 42 are respectively rotatably connected to the left and right sides inside the installation groove 41. Worm gears 43 are arranged in the middle of the outer arc surfaces of the installation rods 42. The folding mechanism 4 further includes a connecting rod 44 and a worm 45. The connecting rod 44 is rotatably connected to the lower side inside the installation groove 41. Worms 45 are arranged on the left and right sides of the outer arc surface of the connecting rod 44. The worms 45 are respectively meshed and connected with the vertically adjacent worm gears 43. The folding mechanism 4 further includes an output rod 46 and a bevel gear 47. The output rod 46 is rotatably connected to the middle of the bottom wall of the installation groove 41. Bevel gears 47 are arranged on the upper side of the outer arc surface of the output rod 46 and the middle of the outer arc surface of the connecting rod 44. The two bevel gears 47 are meshed and connected. The folding mechanism 4 further includes a driving motor 48. The driving motor 48 is arranged in the middle of the lower end of the fixed seat 2. The upper end of the output shaft of the driving motor 48 is fixedly connected to the lower end of the output rod 46. The input end of the driving motor 48 is electrically connected to the output end of the control switch group 3. The worm 45 drives the worm gear 43 to rotate through meshing connection. During the rotation of the worm gear 43, the connecting arm 5 is driven to rotate through the installation rod 42. The connecting arm 4 drives the rotor 7 to rotate downward through the motor 6. Finally, the rotor 7 is retracted, thereby reducing the occupied space of the multi-rotor unmanned aerial vehicle when not in use, making it convenient to move and store, solving the problem that the rotor is damaged or deformed during storage or transportation, and further extending the service life of the rotor.

[0022] Among them: It further includes a control switch group 3. The control switch group 3 is arranged at the right end of the fixed seat 2. The input end of the control switch group 3 is electrically connected to an external power supply, and it can regulate the electrical components inside the device.

[0023] Among them: It further includes connecting arms 5 and motors 6. The connecting arms 5 are respectively arranged on the front and rear sides of the outer arc surface of the mounting rod 42. The connecting arms 5 are both located outside the fixed seat 2. The motors 6 are both arranged at the upper ends of the connecting arms 5. The upper ends of the output shafts of the motors 6 are both provided with rotors 7. The input ends of the motors 6 are electrically connected to the output end of the control switch group 3. When the multi-rotor drone is in use, through the regulation of the control switch group 3, the motors 6 start to operate. The output shafts of the motors 6 drive the rotors 7 to rotate, thereby driving the multi-rotor drone to move.

[0024] Among them: It further includes limit plates 8. The limit plates 8 are respectively arranged at the left and right ends of the fixed seat 2. The limit plates 8 are respectively located above the vertically adjacent connecting arms 5, and can limit the positions of the connecting arms 5 to prevent the positions of the connecting arms 5 from shifting.

[0025] The working principle of a multi-rotor drone provided by the present utility model is as follows: When the multi-rotor drone is in use, through the regulation of the control switch group 3, the motors 6 start to operate. The output shafts of the motors 6 drive the rotors 7 to rotate, thereby driving the multi-rotor drone to move. When the multi-rotor drone finishes working, through the regulation of the control switch group 3, the motors 6 stop operating, and the driving motor 48 starts to operate. The driving motor 48 drives the output rod 46 to rotate. The output rod 46 drives the connecting rod 44 to rotate through the meshing connection between the bevel gears 47. The connecting rod 44 drives the worm 45 to rotate. The rotation directions of the two worms 45 are opposite. The worm 45 drives the worm gear 43 to rotate through the meshing connection. During the rotation of the worm gear 43, it drives the connecting arm 5 to rotate through the mounting rod 42. The connecting arm 4 drives the rotor 7 to rotate downward through the motor 6, and finally the rotor 7 can be retracted.

[0026] It should be noted that, in the above embodiments, the motor 6 disclosed can be selected as ECMA-C20604RS, the driving motor 48 can be selected as 5I K200A-AF, and the control switch group 3 is provided with control buttons corresponding to the motor 6 and the driving motor 48 one by one for controlling their switches.

[0027] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure or equivalent process transformation made by using the description and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present utility model.

Claims

1. A multi-rotor unmanned aerial vehicle, comprising a fuselage (1), a fixed seat (2) is arranged in the middle of the lower end of the fuselage (1), and rotors (7) are respectively arranged at the left and right ends of the fixed seat (2), and is characterized in that: It further includes a folding mechanism (4); Folding mechanism (4): It includes an installation groove (41), an installation rod (42) and a worm gear (43). The installation groove (41) is arranged inside the fixed seat (2). The left and right sides inside the installation groove (41) are respectively rotatably connected with the installation rod (42), and worm gears (43) are arranged in the middle of the outer arc surfaces of the installation rods (42).

2. The multi-rotor unmanned aerial vehicle according to claim 1, characterized in that: It further includes a control switch group (3). The control switch group (3) is arranged at the right end of the fixed seat (2), and the input end of the control switch group (3) is electrically connected to an external power supply.

3. The multi-rotor unmanned aerial vehicle according to claim 2, characterized in that: The folding mechanism (4) further includes a connecting rod (44) and a worm (45). The connecting rod (44) is rotatably connected to the lower side inside the installation groove (41), and worms (45) are arranged on the left and right sides of the outer arc surface of the connecting rod (44). The worms (45) are respectively meshed and connected with the vertically adjacent worm gears (43).

4. A multi-rotor unmanned aerial vehicle according to claim 3, wherein: The folding mechanism (4) further includes an output rod (46) and bevel gears (47). The output rod (46) is rotatably connected to the middle of the bottom wall of the installation groove (41), and bevel gears (47) are arranged on the upper side of the outer arc surface of the output rod (46) and the middle of the outer arc surface of the connecting rod (44). The two bevel gears (47) are meshed and connected.

5. A multi-rotor unmanned aerial vehicle according to claim 4, wherein: The folding mechanism (4) further includes a driving motor (48). The driving motor (48) is arranged in the middle of the lower end of the fixed seat (2), the upper end of the output shaft of the driving motor (48) is fixedly connected to the lower end of the output rod (46), and the input end of the driving motor (48) is electrically connected to the output end of the control switch group (3).

6. A multi-rotor unmanned aerial vehicle according to claim 2, characterized in that: It further includes connecting arms (5) and motors (6). The connecting arms (5) are respectively arranged on the front and rear sides of the outer arc surfaces of the installation rods (42). The connecting arms (5) are all located outside the fixed seat (2). Motors (6) are arranged at the upper ends of the connecting arms (5), the upper ends of the output shafts of the motors (6) are respectively provided with rotors (7), and the input ends of the motors (6) are electrically connected to the output end of the control switch group (3).

7. A multi-rotor unmanned aerial vehicle according to claim 6, characterized in that: It further includes limit plates (8). The limit plates (8) are respectively arranged at the left and right ends of the fixed seat (2), and the limit plates (8) are respectively located above the vertically adjacent connecting arms (5).

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