Propeller driving mechanism for toy unmanned aerial vehicle

Abstract

The utility model relates to a propeller driving mechanism for a toy unmanned aerial vehicle, which comprises a flying part consisting of a main propeller group and an auxiliary propeller group movably embedded in the main propeller group, and a power part consisting of a driving motor, an adjusting ring and a plurality of groups of adjusting push rods uniformly arranged on the adjusting ring, the position of the auxiliary propeller set is adjusted through the adjusting ring and the adjusting push rod, the auxiliary propeller set can be separated from the main propeller set, the weight of main propeller blades is adjusted, the load of a driving motor is reduced, and the rotating speed of propellers is increased. Or the main propeller group and the auxiliary propeller group are in transmission connection with the output end of the driving motor, so that the main propeller group and the auxiliary propeller group are used for realizing the flying work of the flying part, and the propellers distributed in a staggered manner can ensure longer hang stability and hang time of the flying part; while the stability of the propeller is maintained, the weight and the shape of the propeller are adjusted by adjusting the positions of the main propeller set and the auxiliary propeller set, and the stability and the performance of the overall structure of the propeller are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of toy drones, and in particular relates to a propeller driving mechanism for a toy drone. Background Art

[0002] Unmanned aerial vehicles (UAVs), also known as drones, are unmanned aircraft controlled by radio remote control and self-contained programmable controls. They are a rapidly developing new concept, characterized by maneuverability, rapid response, unmanned flight, and minimal operational requirements. With socioeconomic development and rising living standards, children's toys are becoming increasingly diverse. Toy drones, as a type of flying toy, are a favorite among children. They can enrich children's daily lives, increase their interest in outdoor activities, provide them with great enjoyment, and broaden their interests. Most toy drones are rotary-wing drones that generate lift using rotating propeller wings, but the drive systems of many existing toy drones still have shortcomings.

[0003] For example, the utility model with announcement number 219382835 U discloses a propeller drive mechanism for a drone. The top surface of the protective cover has multiple holes, which reduces the weight of the protective cover. When the electric push rod is used, the horizontal plate and the lifting block are separated from the groove, and the connecting rod is moved to one side. The horizontal plate, lifting block, connecting rod, U-shaped rod and push rod can be removed, reducing the weight of the propeller and facilitating the subsequent increase in the speed of propeller rotation. The motor can be controlled by the motor controller to increase the speed of the propeller, facilitating the increase in the speed of the propeller drive. However, this drive mechanism has the following disadvantages: although the weight of the propeller is reduced after the lifting block in the propeller is removed, the gap in the propeller affects the stability of the propeller itself, increasing the risk during its use.

[0004] In response to the above-mentioned phenomena and problems, we conducted in-depth research and proposed a toy drone with expandable modules. While maintaining the stability of the propeller itself, the weight and shape of the propeller can be adjusted by adjusting the positional relationship between the main propeller group and the auxiliary propeller group, thereby improving the stability and performance of its overall structure. Utility Model Content

[0005] In response to the above-mentioned existing problems, the present invention proposes a propeller drive mechanism for a toy drone. While maintaining the stability of the propeller itself, the weight and shape of the propeller can be adjusted by adjusting the positional relationship between the main propeller group and the auxiliary propeller group, thereby improving the stability and performance of its overall structure.

[0006] To achieve the above-mentioned purpose, the utility model provides a propeller driving mechanism for a toy drone, comprising a connecting arm, a mounting seat being provided at one end of the connecting arm, a flying component being provided on the mounting seat, and a power component being provided inside the mounting seat; the flying component comprising a main propeller group and a secondary propeller group, the main propeller group comprising a main spiral rotating disk and main propeller blades arranged at the edge of the main spiral rotating disk, the secondary propeller group comprising a secondary spiral rotating disk and secondary propeller blades arranged at the edge of the secondary spiral rotating disk, and the secondary spiral rotating disk is movably embedded in the main spiral rotating disk; the power component comprises a driving motor, an adjusting ring arranged around the driving motor, and a plurality of adjusting push rods evenly arranged on the adjusting ring, the output end of the driving motor is transmission-connected to the main spiral rotating disk, and the output end of the adjusting push rod is arranged below the bottom of the secondary spiral rotating disk.

[0007] Preferably, the mounting seat includes a placement seat arranged at one end of the connecting arm and a top seat arranged on the placement seat, the placement seat is connected to the top seat and is provided with a placement cavity, a connecting port is provided on the top of the top seat, the output end of the drive motor extends from the connecting port and is transmission-connected to the main spiral rotating disk; an annular opening is provided on the placement seat around the top seat, the output end of the adjusting push rod extends from the annular opening and is arranged below the bottom of the secondary spiral rotating disk.

[0008] Preferably, a driving shaft is provided at the output end of the driving motor, a first mounting groove is provided on the driving shaft, and the center of the main spiral rotating disk is placed on the first mounting groove.

[0009] Preferably, a driving top cover is provided above the first mounting slot, and a second mounting slot is provided between the first mounting slot and the connecting port.

[0010] Preferably, a second thread is provided on the outer side of the auxiliary spiral rotating disk, and a first thread is provided at the part where the main spiral rotating disk is embedded in the auxiliary spiral rotating disk and in the second installation groove, and the first thread and the second thread can match each other.

[0011] Preferably, the output end of each adjusting push rod is provided with a motion rod, and the top of the motion rod is provided with a first magnet.

[0012] Preferably, second magnets are provided at the bottom of the secondary spiral rotating disk in a number and at distribution intervals corresponding to the movement rods.

[0013] Preferably, a depression is provided on the lower surface of the main propeller blade, and the auxiliary propeller blade can be completely embedded in the depression.

[0014] Preferably, a propeller protection ring is provided on the periphery of the placement seat, and a protection net is provided on the upper half of the protection ring.

[0015] Preferably, an elastic shock-proof sheet is provided on the top of the seating seat.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the propeller driving mechanism for a toy drone provided by the present invention is provided with a flying component on a mounting base, and a power component inside the flying component; the flying component comprises a main propeller group connected to the power component by transmission and an auxiliary propeller group movably embedded in the main propeller group; the power component comprises a driving motor, an adjusting ring surrounding the driving motor and a plurality of adjusting push rods evenly arranged on the adjusting ring; the position of the auxiliary propeller group can be adjusted by the adjusting ring and the plurality of adjusting push rods, so that the auxiliary propeller group can be completely separated from the main propeller group or the main propeller group can be adjusted. The weight of the propeller blades is reduced to reduce the load of the drive motor and increase the rotation speed of the propeller; or it is also connected to the output end of the drive motor in a transmission manner, and the auxiliary propeller blades are staggered with the main propeller blades, so that the flying component has two groups of propellers, the main propeller group and the auxiliary propeller group, for realizing the flight work of the flying component. The staggered propellers can ensure its longer hovering stability and hovering time; this solution can adjust the weight and shape of the propeller by adjusting the positional relationship between the main propeller group and the auxiliary propeller group while maintaining the stability of the propeller itself, thereby improving the stability and performance of its overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a propeller drive mechanism for a toy drone of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the flight component of the utility model

[0019] Figure 3 This is a schematic structural diagram of the main propeller group 31 and the auxiliary propeller being separated from each other in the present invention;

[0020] Figure 4 This is a structural schematic diagram of the auxiliary propeller of the present invention when it is unfolded.

[0021] In the figure: 1-connecting arm, 21-receiving seat, 22-top seat, 23-placing cavity, 24-annular mouth, 25-elastic shockproof plate, 26-propeller protection ring, 27-protection net, 31-main propeller group, 311-main spiral rotating disk, 312-main propeller blade, 32-auxiliary propeller group, 321-auxiliary spiral rotating disk, 322-first magnet, 323-auxiliary propeller blade, 41-drive motor, 411-drive shaft, 412-drive top cover, 413-second mounting slot, 42-adjusting ring, 43-adjusting push rod, 431-movement rod, 432-second magnet. DETAILED DESCRIPTION

[0022] To further illustrate the present invention, the following description is provided with reference to the accompanying drawings. It should be noted that the embodiments described below represent only a portion of the present invention, and not all of its embodiments. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0023] See Figure 1 and Figure 2 The present embodiment provides a propeller drive mechanism for a toy drone, including a connecting arm 1, a mounting seat, a flying component, and a power component; the mounting seat is arranged at one end of the connecting arm 1 and is connected to the toy drone as a whole through the connecting arm 1, including a placement seat 21 arranged at one end of the connecting arm 1 and a top seat 22 arranged on the placement seat 21, the placement seat 21 is connected to the top seat 22 and is provided with a placement cavity 23, a connecting port is provided at the top of the top seat 22, and an annular port 24 is provided on the placement seat 21 around the top seat 22; in this embodiment, an elastic shock-proof plate 25 is provided on the top of the placement seat 21 of the top seat 22, a propeller protection ring 26 is provided on the periphery of the placement seat 21, and a protection net 27 is provided on the upper half of the protection ring.

[0024] The flying component is arranged above the top seat 22, and includes a main propeller group 31 and a secondary propeller group 32. The main propeller group 31 includes a main spiral rotating disk 311 and a main propeller blade 312 arranged on the edge of the main spiral rotating disk 311. The secondary propeller group 32 includes a secondary spiral rotating disk 321 and a secondary propeller blade 323 arranged on the edge of the secondary spiral rotating disk 321, and the secondary spiral rotating disk 321 is movably embedded in the main spiral rotating disk 311. In this embodiment, the lower surface of the main propeller blade 312 is provided with a recess, the main spiral rotating disk 311 is provided with a first thread at the position where the secondary spiral rotating disk 321 is embedded in the main spiral rotating disk 311, and the outer side of the secondary spiral rotating disk 321 is provided with a second thread that can match the first thread. The upper surface of the secondary propeller blade 323 has a certain curvature in a local area and can be completely embedded in the recess. The bottom of the secondary spiral rotating disk 321 is provided with first magnets 322 corresponding to the number and distribution interval of the motion rod 431.

[0025] The power component is arranged in the placement cavity 23, including a drive motor 41, an adjustment ring 42 and multiple groups of adjustment push rods 43. The drive motor 41 is arranged at the center of the placement cavity 23, and a drive shaft 411 is provided at its output end. The drive shaft 411 extends from the connection port, and a drive top cover 412, a first mounting groove and a second mounting groove 413 are arranged on it from top to bottom. The center of the main spiral rotating disk 311 is placed on the first mounting groove, which is used for the transmission connection between the output end of the drive motor 41 and the main spiral rotating disk 311. Then, a first thread is provided in the second mounting groove 413, which can be used to accommodate the secondary spiral rotating disk 321; the adjusting ring 42 is arranged around the periphery of the driving motor 41, and the adjusting push rods 43 are evenly arranged on the adjusting ring 42, and the output ends thereof are all provided with motion rods 431, and the motion rods 431 extend from the annular opening 24 and are arranged below the bottom of the secondary spiral rotating disk 321, and the top thereof is provided with a second magnet 432. In this embodiment, the adjusting ring 42 is a micro electric rotator, and the adjusting push rods 43 are all electric push rods.

[0026] See Figure 1 、 Figure 2 、 Figure 3 and Figure 4In this embodiment, in the initial state, the main propeller group 31 and the auxiliary propeller group 32 are in a combined state, the auxiliary spiral rotating disk 321 is embedded in the main spiral rotating disk 311, and the auxiliary propeller blades 323 are completely embedded under the main propeller blades 312 through the recess. The output end of the drive motor 41 is in transmission connection with the main spiral rotating disk 311. At this time, the propeller drive mechanism actually only has one propeller of the main propeller group 31 for realizing the flight work of the flying component; if the propeller rotation speed needs to be increased, The movement rod 431 is raised by the adjusting push rod 43, and the adjusting ring 42 is rotated at the same time, so that the position of the movement rod 431 corresponds to the position of the first magnet 322, so that the second magnet 432 and the first magnet 322 are attracted to each other. After the adsorption is completed, the adjusting ring 42 is rotated in the opposite direction of the first thread installation direction to separate the auxiliary propeller group 32 from the main propeller group 31. Then the adjusting push rod 43 continues to retract the movement rod 431 until the auxiliary propeller group 32 is placed on the placement seat 21. At this point, the auxiliary propeller group The weight of the auxiliary propeller group 32 is no longer borne by the main propeller group 31, and the weight of the main propeller blade 312 is successfully adjusted to reduce the load of the drive motor 41 and increase the rotation speed of the propeller; if it is necessary to ensure the stability of the propeller in the air, the adjusting push rod 43 retracts the motion rod 431, and the auxiliary propeller group 32 is separated from the main propeller group 31 and reaches the second mounting groove 413. The adjusting ring 42 places the auxiliary propeller group 32 on the second mounting groove 413 along the first thread installation direction, and the auxiliary propeller blade 323 moves along the adjusting ring 42 rotates, and changes from being parallel to the main propeller blades 312 to being staggered with the main propeller blades 312. After the placement is completed, the adjusting push rod 43 continues to contract, so that the second magnet 432 and the first magnet 322 are separated from each other. At this time, the auxiliary propeller group 32 and the output end of the drive motor 41 are also in a transmission connection state. At this time, the propeller drive mechanism actually has two groups of propellers, the main propeller group 31 and the auxiliary propeller group 32, for realizing the flight work of the flying component. The staggered propellers can ensure its longer hovering stability and hovering time.

[0027] In this embodiment, the above is only an example and is not intended to limit the scope of protection of this application.

[0028] The utility model provides a propeller drive mechanism for a toy drone, wherein a flight component is arranged on a mounting seat, and a power component is arranged inside the flight component; the flight component includes a main propeller group connected to the power component by transmission and an auxiliary propeller group movably embedded in the main propeller group; the power component includes a driving motor, an adjustment ring surrounding the driving motor and a plurality of adjustment push rods evenly arranged on the adjustment ring; the position of the auxiliary propeller group is adjusted by the adjustment ring and the plurality of adjustment push rods, so that the auxiliary propeller group can be completely separated from the main propeller group, and the weight of the main propeller blades can be adjusted to reduce The load of the driving motor increases the rotation speed of the propeller; or it is also connected to the output end of the driving motor in a transmission manner, and the auxiliary propeller blades are staggered with the main propeller blades, so that the flying component has two groups of propellers, the main propeller group and the auxiliary propeller group, for realizing the flight operation of the flying component. The staggered propellers can ensure its longer hovering stability and hovering time; this solution can adjust the weight and shape of the propeller by adjusting the positional relationship between the main propeller group and the auxiliary propeller group while maintaining the stability of the propeller itself, thereby improving the stability and performance of its overall structure.

[0029] The embodiments disclosed above are only for the purpose of explaining the present invention in detail and are not intended to limit the scope of the present invention. Therefore, simple modifications and changes made within the scope of the claims of the present invention are still within the scope of protection of the present invention.

[0030] The scope of protection of the present invention shall be based on the scope defined above. For those skilled in the art, it is possible to make several improvements and modifications without departing from the spirit and scope of the present invention, and these modifications shall also be considered as the scope of protection of the present invention.

Claims

1. A propeller drive mechanism for a toy drone, comprising a connecting arm, characterized in that: A mounting seat is provided at one end of the connecting arm, a flying component is provided on the mounting seat, and a power component is provided inside the mounting seat; the flying component includes a main propeller group and a secondary propeller group, the main propeller group includes a main spiral rotating disk and main propeller blades arranged at the edge of the main spiral rotating disk, the secondary propeller group includes a secondary spiral rotating disk and secondary propeller blades arranged at the edge of the secondary spiral rotating disk, and the secondary spiral rotating disk is movably embedded in the main spiral rotating disk; the power component includes a driving motor, an adjusting ring arranged around the driving motor and a plurality of adjusting push rods evenly arranged on the adjusting ring, the output end of the driving motor is transmission-connected to the main spiral rotating disk, and the output end of the adjusting push rod is arranged below the bottom of the secondary spiral rotating disk.

2. A propeller drive mechanism for a toy drone according to claim 1, characterized in that: The mounting seat includes a placement seat arranged at one end of the connecting arm and a top seat arranged on the placement seat, a placement cavity is provided in communication with the interior of the placement seat and the top seat, a connecting port is provided on the top of the top seat, the output end of the drive motor extends from the connecting port and is transmission-connected to the main spiral rotating disk; an annular port is provided on the placement seat around the top seat, the output end of the adjusting push rod extends from the annular port and is arranged below the bottom of the secondary spiral rotating disk.

3. A propeller drive mechanism for a toy drone according to claim 2, characterized in that: The output end of the driving motor is provided with a driving shaft, the driving shaft is provided with a first mounting groove, and the center of the main spiral rotating disk is placed on the first mounting groove.

4. A propeller drive mechanism for a toy drone according to claim 3, characterized in that: A driving top cover is provided above the first installation slot, and a second installation slot is provided between the first installation slot and the connecting port.

5. A propeller drive mechanism for a toy drone according to claim 4, characterized in that: The outer side of the auxiliary spiral rotating disk is provided with a second thread, and the place where the main spiral rotating disk is embedded in the auxiliary spiral rotating disk and the second installation groove are both provided with a first thread, and the first thread and the second thread can match each other.

6. A propeller drive mechanism for a toy drone according to claim 2, characterized in that: The output end of each adjusting push rod is provided with a motion rod, and the top of each motion rod is provided with a first magnet.

7. A propeller drive mechanism for a toy drone according to claim 6, characterized in that: Second magnets are arranged at the bottom of the secondary spiral rotating disk in a number and at distribution intervals corresponding to the number of the moving rods.

8. The propeller drive mechanism for a toy drone according to claim 2, characterized in that: The lower surface of the main propeller blade is provided with a recess, and the auxiliary propeller blade can be completely embedded in the recess.

9. The propeller drive mechanism for a toy drone according to claim 2, characterized in that: A propeller protection ring is arranged on the periphery of the placement seat, and a protection net is arranged on the upper half of the protection ring.

10. The propeller drive mechanism for a toy drone according to claim 2, characterized in that: An elastic shock-proof sheet is provided on the top of the placement seat.

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