Flight control structure of flying toy

Abstract

A flight control structure of a flying toy comprises a base, a shell and a flight structure, the base and the shell are connected to form an inner cavity, one end of the flight structure is arranged in the inner cavity and connected with the shell, the other end of the flight structure penetrates through the shell, the flight structure comprises a flight rotor assembly, a posture assembly and a battery control assembly, and the battery control assembly is fixed to the base and connected with the shell. One end of the flight rotor assembly penetrates through the shell, and the attitude assembly is connected with the flight rotor assembly and drives the flight rotor assembly to deflect and rotate. The independent posture assembly is arranged to drive the flying rotor wing assembly to deflect, the mode that in a traditional scheme, the posture is controlled through the rotor wing rotating speed difference or a complex swash plate mechanism is replaced, and the problems that due to the fact that the rotor wing rotating speed difference is adjusted, a fuselage shakes, and energy consumption is increased are solved; meanwhile, complex structures such as a multi-layer swash plate and a connecting rod do not need to be adopted, so that the overall structure is simplified, and the manufacturing process difficulty and cost are reduced.

Description

Technical Field

[0001] This utility model relates to the field of toy technology, and in particular to the flight control structure of flying toys. Background Technology

[0002] In the field of flying toys, the dual-rotor structure (especially the coaxial dual-rotor, i.e., the upper and lower rotors rotate in opposite directions) has become a common choice for small toy designs due to its advantages such as not requiring an additional tail rotor to balance the anti-torque and its compact structure. Existing horizontal movement control methods for dual-rotor flying toys are mainly divided into two categories, but they have significant limitations in terms of structural simplification, operational stability, and cost control.

[0003] One type is the speed difference control used in low-cost products, which generates horizontal thrust by adjusting the speed difference between the upper and lower rotors to tilt the fuselage. However, fluctuations in the speed difference can easily cause the fuselage to sway, making it prone to tipping over when encountering airflow or making sharp turns; frequent speed adjustments increase energy consumption, shorten the flight range, and require high precision from the motor, which in turn increases costs.

[0004] Another type is the complex tilting mechanism of high-end models, which draws on the principle of automatic tilting devices. It adjusts the rotor plane through multiple tilting discs, linkages and servos. Although it has good stability, the complex structure leads to high manufacturing difficulty, increased fuselage weight, poor impact resistance of precision parts, and high maintenance costs, which contradicts the requirements of toys for "high fault tolerance and impact resistance".

[0005] In summary, existing technologies are constrained by the contradictions between stability and cost, and between structural complexity and durability, and cannot meet the comprehensive requirements of "stability and controllability, low cost, and damage resistance". There is an urgent need to innovate control structures to break through the bottleneck. Utility Model Content

[0006] The purpose of this invention is to provide a flight control structure for flying toys, which aims to improve the flexibility, sealing and maintainability of pipe connections.

[0007] To achieve the above objectives, this utility model provides a flight control structure for a flying toy, including a base, a shell, and a flight structure. The base is connected to the shell and forms an inner cavity. One end of the flight structure is placed in the inner cavity and connected to the shell, while the other end passes through the shell. The flight structure includes a flight rotor assembly, an attitude assembly, and a battery control assembly. The battery control assembly is fixed to the base. One end of the flight rotor assembly passes through the shell. The attitude assembly is connected to the flight rotor assembly and drives the flight rotor assembly to yaw and rotate.

[0008] Preferably, the attitude assembly includes a fixed base, a oscillating power component, and a connecting component. The fixed base is fixedly connected to the inner wall of the housing. The oscillating power component is fixed to the flight rotor assembly. The upper end of the flight rotor assembly passes through the fixed base and the middle end is rotatably connected to the fixed base. The connecting component is connected to the lower end of the flight rotor assembly and rotates synchronously. The connecting component is engaged with the oscillating power component.

[0009] When adjusting the flight attitude of the flying toy, the swing power component drives the connecting component to rotate, which in turn drives the flight rotor assembly to rotate and yaw.

[0010] Preferably, the connecting components include a transmission gear and a oscillating gear.

[0011] The flight rotor assembly has a first connection position and a second connection position. The transmission gear is rotatably connected to the first connection position, and one end of the oscillating gear is fixedly connected to the second connection position, while the other end is connected to a fixed base. The transmission gear meshes with both the oscillating power component and the oscillating gear.

[0012] When adjusting the flight attitude of the flying toy, the swing power component transmits power to the rotating gear through the transmission gear. The swing gear rotates, thereby causing the flight rotor assembly to deflect.

[0013] Preferably, the flight rotor assembly includes a rotary power component and a rotor assembly component. The middle end of the rotor assembly component is rotatably connected to the fixed base, and the upper end passes through the fixed base and extends out of the housing. The rotary power component is connected to the lower end of the rotor assembly component, and the rotary power component drives the rotor assembly component to rotate.

[0014] Preferably, the rotor assembly includes a support frame, a rotor gear, and twin rotors. The support frame has a channel for the twin rotors to pass through. The support frame is rotatably connected to a fixed base. One end of each twin rotor passes through the channel, and the other end is fixedly connected to the rotor gear. A rotational power component is fixed to the support frame and meshes with the rotor gear. One end of each twin rotor passing through the channel has a blade.

[0015] During flight, the rotating power component drives the rotor gear to rotate, and the rotor gear drives the two rotors to rotate relative to the support.

[0016] Preferably, the upper end of the bracket is provided with a rotating shaft, and the fixed seat is provided with a rotating hole corresponding to the rotating shaft, and the rotating shaft and the rotating hole are rotatably connected;

[0017] The bracket has a first connection position in the middle and a second connection position at the bottom.

[0018] Preferably, the end of the swing gear connected to the fixed seat is provided with a connecting post, and the fixed seat is provided with a groove corresponding to the connecting post, through which the connecting post passes.

[0019] Preferably, the swing gear is provided with a limiting protrusion on the side near the second connection position, and the bracket is provided with a limiting groove corresponding to the limiting protrusion, and the limiting protrusion moves within the limiting groove.

[0020] Preferably, the connecting member further includes a torsion spring, one end of which is connected to the second connecting position, and the other end is abutted against the limiting protrusion.

[0021] The beneficial effects of this utility model are:

[0022] 1. This invention employs an independent attitude control component to drive rotor yaw for directional control, avoiding instability caused by frequent changes in rotor speed and resulting in a smoother flight. Precise control via gear transmission ensures accurate attitude adjustment.

[0023] 2. This utility model eliminates the multi-layered tilting discs and connecting rods in traditional complex tilting mechanisms, replacing them with simpler transmission components such as fixed seats and gears. This results in fewer parts and a simpler assembly process. The overall structure is compact and lighter, which is beneficial for improving range and maneuverability. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the flight structure of this utility model.

[0027] Figure 3 This is a schematic diagram showing the connection between the flight rotor assembly and the attitude assembly of this utility model.

[0028] Figure 4 This is a structural schematic diagram of the attitude component of this utility model.

[0029] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0030] Figure 6 This is a schematic diagram of the connecting component structure of this utility model.

[0031] In the diagram: 1. Base; 2. Shell; 3. Flight structure; 4. Internal cavity; 5. Flight rotor assembly; 6. Attitude assembly; 7. Battery control assembly; 8. Mounting base; 9. Oscillating power component; 10. Connecting component; 11. Transmission gear; 12. Oscillating gear; 13. Rotational power component; 14. Rotor assembly component; 15. Bracket; 16. Rotor gear; 17. Twin rotors; 18. Wings; 19. Shaft; 20. Rotary hole; 21. First connection position; 22. Second connection position; 23. Connecting column; 24. Channel; 25. Limiting protrusion; 26. Limiting groove; 27. Torsion spring. Detailed Implementation

[0032] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0033] The purpose of this invention is to provide a flight control structure for flying toys, solving the existing technical problems of simplifying the structure and reducing costs while ensuring stable and controllable flight.

[0034] like Figure 1 and Figure 2 As shown, a flight control structure for a flying toy includes a base 1, a shell 2, and a flight structure 3. The base 1 and the shell 2 are connected by snaps or screws to form a closed inner cavity 4. The lower part of the flight structure 3 is installed in the inner cavity 4 and fixed to the shell 2, while its upper part protrudes from the shell 2 and is exposed to the outside to generate the lift and thrust required for flight. The flight structure 3 consists of a flight rotor assembly 5, an attitude assembly 6, and a battery control assembly 7. The battery control assembly 7 is fixedly installed on the base 1 and includes a battery and control circuitry, providing power to the entire device and receiving remote control signals to control the operation of each motor. The upper end of the flight rotor assembly 5 protrudes through the top of the shell 2, and its main body is located inside the shell 2. The attitude assembly 6 is located inside the shell 2 and connected to the flight rotor assembly 5, driving the flight rotor assembly 5 to yaw relative to the shell 2, thereby adjusting the flight attitude. This invention drives the flight rotor assembly 5 to yaw by setting an independent attitude component 6, which replaces the traditional method of controlling attitude by rotor speed difference or complex swashplate mechanism. This avoids problems such as fuselage swaying, increased energy consumption and high motor precision requirements caused by adjusting rotor speed difference. At the same time, it eliminates the need for complex structures such as multi-layer swashplates and linkages, thereby simplifying the overall structure and reducing manufacturing difficulty and cost.

[0035] Furthermore, such as Figure 3 , Figure 4 As shown, the attitude assembly 6 includes a fixed base 8, a oscillating power component 9, and a connecting component 10. The fixed base 8 is fixed to the inner wall of the housing 2 by screws, while the oscillating power component 9 can be a miniature servo motor, the outer shell of which is fixedly mounted on the lower part of the flight rotor assembly 5 (specifically mounted on the bracket 15 of the rotor assembly 14, see [reference]). Figure 4A small gear (not labeled in the figure) is mounted on the output shaft of the motor. The middle part of the flight rotor assembly 5 is rotatably connected to the fixed base 8 via a horizontal rotating shaft 19: Specifically, a horizontal rotating shaft 19 extends from the middle position (middle section of the support 15) of the rotor assembly 5, and a corresponding rotating hole 20 is provided on the fixed base 8. The rotating shaft 19 passes through the rotating hole 20, allowing the rotor assembly 14 to rotate relative to the fixed base 8 around the rotating shaft 19. The upper end of the rotor assembly 14 passes through the top opening of the fixed base 8 and extends out of the housing 2, while its lower end is located in the inner cavity 4 below the fixed base 8. The connecting member 10 is located below the fixed base 8 and is connected to the rotor assembly 14. It is used to transmit the driving force of the oscillating power member 9 to the rotor assembly 14, causing it to oscillate around the rotating shaft 19.

[0036] The connecting component 10 is specifically composed of a transmission gear 11, a swing gear 12, and a torsion spring 27 (see...). Figure 4 and Figure 5 The support 15 of the rotor assembly component 14 has a first connecting position 21 and a second connecting position 22 respectively at its middle section and lower end (see...). Figure 5 and Figure 6 The first connecting position 21 is located near the rotating shaft 19 and is a protruding shaft or short column on the bracket 15; the transmission gear 11 is fitted onto the first connecting position 21 through the central hole and can rotate freely around the shaft. The second connecting position 22 is located at the lower end of the bracket 15 and is an outwardly protruding shaft or short column. The swing gear 12 is roughly fan-shaped, with a shaft hole on one side and fitted onto the second connecting position 22, and is fixedly connected to the bracket 15 (i.e., the swing gear 12 can swing around the rotating shaft 19 together with the bracket 15); the other edge of the swing gear 12 is provided with a rack. A limiting protrusion 25 is also provided on the side of the swing gear 12 near the bracket 15, and the protrusion protrudes towards the bracket 15. The bracket 15 has an arc-shaped limiting groove 26 corresponding to the position of the limiting protrusion 25, and the end of the limiting protrusion 25 extends into the limiting groove 26 (see Figure 5 When the bracket 15 drives the swing gear 12 to swing around the rotating shaft 19, the limiting protrusion 25 will slide in the limiting groove 26. The two ends of the limiting groove 26 restrict the movement range of the protrusion 25, thereby limiting the maximum yaw angle of the bracket 15 (i.e., rotor assembly component 14).

[0037] The transmission gear 11 is located outside the oscillating gear 12, and its teeth mesh with both the pinion on the output shaft of the oscillating power component 9 and the arc-shaped rack of the oscillating gear 12, forming a two-stage gear transmission pair. Thus, when the oscillating power component 9 (motor) rotates, its output gear drives the transmission gear 11 to rotate, and the transmission gear 11 in turn pushes the oscillating gear 12 to rotate around the second connection position 22. Since the oscillating gear 12 is fixedly connected to the bracket 15, the rotation of the oscillating gear 12 will cause the bracket 15 to deflect around the rotating shaft 19, thereby causing the entire rotor assembly 14 to tilt and sway relative to the fixed base 8.

[0038] Furthermore, a connecting post 23 is provided on the side of the swing gear 12 away from the second connecting position 22. The fixed base 8 is provided with a groove 24 corresponding to the connecting post 23, and the connecting post 23 passes through the groove 24. The connecting post 23 restricts the swing gear 12, limiting its left and right movement space, so that the swing gear 12 can form a rotation axis along the connecting post 23. When its rack and pinion engage, its downward swing position can drive the second connecting position 22 to generate displacement, thereby pushing the entire bracket 15 to swing. At the same time, during the swinging process, the swing gear 12 is allowed to have a slight up and down floating space, which can be matched with the gear clearance to avoid the meshing dead point between the transmission gear 11 and the swing gear 12.

[0039] Additionally, the torsion spring 27 is fitted onto the second connection position 22, with one end hooked onto the second connection position 22 of the bracket 15, and the other end abutting against the limiting protrusion 25 of the swing gear 12 (see...). Figure 5 In its natural state, the torsion spring 27 applies an initial torque to the oscillating gear 12, causing the limiting protrusion 25 to abut against the middle of the limiting groove 26, thereby holding the rotor assembly 14 in its initial vertical position (neutral attitude). When the oscillating power component 9 drives the oscillating gear 12 to rotate relative to the support 15, the torsion spring 27 is compressed or twisted, generating a reverse restoring force; once the oscillating power component 9 stops driving or is de-energized, the force of the torsion spring 27 will push the oscillating gear 12 and the support 15 back to their initial positions, causing the rotor assembly 14 to automatically reset.

[0040] See Figure 3 and Figure 4The flight rotor assembly 5 includes a rotary power component 13 and a rotor assembly 14. The rotary power component 13 is also a miniature drive motor (two motors are used in this embodiment), and its fuselage is fixedly mounted on the lower part of the bracket 15 of the rotor assembly 14 (located inside or outside the bracket 15, the specific position being suitable so as not to interfere with the movement of other components). The rotor assembly 14 includes a bracket 15, a rotor gear 16, and twin rotors 17. The bracket 15 is a hollow columnar structure, with a transverse rotating shaft 19 in its middle rotatably connected to a fixed base 8. A through channel is formed along the axis inside the bracket 15, through which the rotor shafts of the twin rotors 17 pass. The lower end of the rotor shaft of the twin rotors 17 extends out of the bottom of the bracket 15 and is fixedly connected to the rotor gear 16, while the upper end of the rotor shaft extends out of the top of the bracket 15 and is fitted with upper and lower layers of blades 18 (upper rotor and lower rotor). A drive pinion is mounted on the output shaft of the rotary power component 13, which meshes with the rotor gear 16. When the rotating power component 13 is powered on, its output shaft drives the drive gear to rotate, the drive gear drives the rotor gear 16 to rotate, and in turn drives the rotor shaft of the dual rotor 17 to rotate at high speed relative to the support 15, so that the upper and lower blades 18 generate lift.

[0041] When it is necessary to control the flight direction or attitude of the flying toy, such as to make the toy fly forward, the remote control signal instructs the attitude component 6 to act: the oscillating power component 9 (servo motor) is energized and rotates by an angle. Through the transmission gear 11 and the oscillating gear 12, the rotor assembly 14 tilts forward by a certain angle around the rotating shaft 19. At this time, the plane of rotation of the twin rotors 17 is no longer perpendicular to the horizontal plane, but tilts forward. The lift generated by the rotors produces a horizontal component force, propelling the fuselage forward. Similarly, by controlling the oscillating power component 9 to rotate forward or backward by different angles, the rotor assembly 14 can tilt left, right, or backward, thereby achieving left, right, or backward flight. When it is necessary to return to horizontal hovering, the oscillating power component 9 rotates in the opposite direction to return the rotor assembly 14 to the vertical position. The restoring force of the torsion spring 27 assists in ensuring accurate reset of the rotor assembly.

[0042] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A flight control structure for a flying toy, comprising a base, a shell, and a flight structure, wherein the base is connected to the shell and forms an inner cavity, one end of the flight structure is placed within the inner cavity and connected to the shell, and the other end passes through the shell, characterized in that, The flight structure includes a flight rotor assembly, an attitude assembly, and a battery control assembly. The battery control assembly is fixed on the base. One end of the flight rotor assembly passes through the housing. The attitude assembly is connected to the flight rotor assembly and drives the flight rotor assembly to yaw and rotate.

2. The flight control structure of the flying toy as described in claim 1, characterized in that, The attitude assembly includes a fixed base, a oscillating power component, and a connecting component. The fixed base is fixedly connected to the inner wall of the housing. The oscillating power component is fixed to the flight rotor assembly. The upper end of the flight rotor assembly passes through the fixed base and the middle end is rotatably connected to the fixed base. The connecting component is connected to the lower end of the flight rotor assembly and rotates synchronously. The connecting component is engaged with the oscillating power component. When adjusting the flight attitude of the flying toy, the swing power component drives the connecting component to rotate, which in turn drives the flight rotor assembly to rotate and yaw.

3. The flight control structure of the flying toy as described in claim 2, characterized in that, The connecting components include a transmission gear and a oscillating gear. The flight rotor assembly has a first connection position and a second connection position. The transmission gear is rotatably connected to the first connection position, and one end of the oscillating gear is fixedly connected to the second connection position, while the other end is connected to a fixed base. The transmission gear meshes with both the oscillating power component and the oscillating gear. When adjusting the flight attitude of the flying toy, the swing power component transmits power to the rotating gear through the transmission gear. The swing gear rotates, thereby causing the flight rotor assembly to deflect.

4. The flight control structure of the flying toy as described in claim 3, characterized in that, The flight rotor assembly includes a rotary power component and a rotor assembly component. The middle end of the rotor assembly component is rotatably connected to the fixed base, and the upper end passes through the fixed base and extends out of the shell. The rotary power component is connected to the lower end of the rotor assembly component, and the rotary power component drives the rotor assembly component to rotate.

5. The flight control structure of the flying toy as described in claim 4, characterized in that, The rotor assembly includes a support frame, a rotor gear, and twin rotors. The support frame has a channel for the twin rotors to pass through. The support frame is rotatably connected to a fixed base. One end of each twin rotor passes through the channel, and the other end is fixedly connected to the rotor gear. The rotational power component is fixed to the support frame and meshes with the rotor gear. One end of each twin rotor passing through the channel has a blade. During flight, the rotating power component drives the rotor gear to rotate, and the rotor gear drives the two rotors to rotate relative to the support.

6. The flight control structure of the flying toy as described in claim 5, characterized in that, The upper end of the bracket is provided with a rotating shaft, and the fixed base is provided with a rotating hole corresponding to the rotating shaft. The rotating shaft and the rotating hole are rotatably connected. The bracket has a first connection position in the middle and a second connection position at the bottom.

7. The flight control structure of the flying toy as described in claim 6, characterized in that, The end of the swing gear connected to the fixed base is provided with a connecting post, and the fixed base is provided with a groove corresponding to the connecting post, through which the connecting post passes.

8. The flight control structure of the flying toy as described in claim 7, characterized in that, The swing gear is also provided with a limiting protrusion on the side near the second connection position, and the bracket is also provided with a limiting groove corresponding to the limiting protrusion, and the limiting protrusion moves in the limiting groove.

9. The flight control structure of the flying toy as described in claim 7, characterized in that, The connecting component also includes a torsion spring, one end of which is connected to the second connecting position, and the other end is abutted against the limiting protrusion.

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