CN219355240U

CN219355240U - Toy remote control helicopter

Info

Publication number: CN219355240U
Application number: CN202223459309.6U
Authority: CN
Inventors: 林国桁
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-21
Filing date: 2022-12-21
Publication date: 2023-07-18
Anticipated expiration: 2032-12-21

Abstract

A toy remote controlled helicopter comprising: fuselage, the actuating mechanism of setting on the fuselage, two sets of screw subassemblies that are connected with actuating mechanism and be used for controlling the direction control mechanism that screw subassembly angle deflected, every screw subassembly of group comprises two screw respectively, its characterized in that: the direction control mechanism comprises two swing arms connected with the driving mechanism and arranged in a cross shape, an angle deflection control structure connected with the two swing arms and two groups of power devices connected with the angle deflection control structure, a group of propeller components are connected to each swing arm respectively, and the two groups of power devices are arranged on the machine body. According to the utility model, the integral rotor heads are arranged into the two swing arms which are distributed in a cross shape, so that the propellers generating shimmy in the flight process of the toy remote control helicopter can not influence the propellers of other groups, and the stability of the body of the toy remote control helicopter in the flight process is enhanced.

Description

Toy remote control helicopter

Technical Field

The utility model relates to a toy, in particular to a toy remote control helicopter.

Background

The existing aircraft rotor head is mostly an integer, when the toy helicopter encounters strong airflow, the rotor can generate strong shimmy, when one set of propellers generate shimmy, the other set of propellers also receive the shimmy transmitted by the propellers generating shimmy, and then the whole propeller assembly generates shimmy, so that the stability of the aircraft body in the flying process is influenced.

Disclosure of Invention

In order to realize that the propeller generating shimmy in the flight process of the toy remote control helicopter can not influence other propellers, the toy remote control helicopter is further stable in the flight process.

A toy remote controlled helicopter comprising: fuselage, the actuating mechanism of setting on the fuselage, two sets of screw subassemblies that are connected with actuating mechanism and be used for controlling each screw subassembly angle deflection's direction control mechanism, every screw subassembly of group comprises two screw respectively, its characterized in that: the direction control mechanism comprises two swing arms connected with the driving mechanism and arranged in a cross shape, an angle deflection control structure connected with the two swing arms and two groups of power devices connected with the angle deflection control structure, a group of propeller components are connected to each swing arm respectively, and the two groups of power devices are arranged on the machine body.

In order to enable the angular deflection control structure to accurately control the angular deflection and inclination of the two sets of propeller assemblies. The angle deflection control structure comprises a swinging disc, a linkage rod and a driving rod, wherein the lower end of the linkage rod is movably connected with the swinging disc, and the upper end of the linkage rod is movably connected with the swinging arm; the upper end of the driving rod is movably connected with the swinging disc, the lower end of the driving rod is movably connected with the power device, two linkage rods are respectively arranged at opposite angles of the swinging arms, each power device is respectively connected with one driving rod, and the lower end of the driving rod is eccentrically connected with the power output end of the power device. The swinging disc comprises an inner connecting sleeve and an outer connecting sleeve, the inner connecting sleeve and the outer connecting sleeve are connected together in a relatively rotatable manner through a bearing, the lower end of the linkage rod is movably connected to the inner connecting sleeve, the upper end of the driving rod is movably connected to the outer connecting sleeve, and the inner connecting sleeve is sleeved on a rotating shaft of the driving mechanism and is reserved with a gap in front of the rotating shaft.

In order to increase the linkage flexibility among the linkage rod, the swing arm and the swing disc, and the driving rod, the swing disc and the power device are connected through spherical joints.

In order to accurately transmit the pushing force and the pulling force of the two groups of power devices to the swinging disc, two arc-shaped protruding arms extending upwards are symmetrically arranged on the outer side wall of the outer connecting sleeve, and the upper end of each arc-shaped protruding arm is connected with the lower end of one driving rod.

In order to enable the propeller assembly connected with the swinging disc to ascend and descend within a preset range, so that the attack angle of the propeller can be accurately controlled to deflect within a preset range, a positioning groove is vertically formed in the machine body, and a positioning column is arranged on the angle deflection control structure and can be movably connected in the positioning groove. The driving mechanism is fixedly connected with a limiting piece for preventing the angle deflection control structure from rotating and deflecting along with the driving mechanism. The limiting piece is arranged into a cross-shaped structure, each branch of the cross-shaped structure is provided with a limiting groove, and each linkage rod passes through the limiting groove along one limiting groove to realize limiting in the left-right direction.

In order to more accurately control the angle of attack deflection angle of the paddles, a swing arm is used for fixedly connecting each group of propellers together, so that each angle deflection of the swing arm can drive the deflection of the angle of attack of the paddles fixedly connected with the swing arm; the driving mechanism comprises a driving motor, a transmission gear in meshed connection with an output shaft gear of the driving motor and a rotating shaft fixed at the axis position of the transmission gear, and the upper end of the rotating shaft is connected with the two swing arms through a shaft sleeve.

In addition, in order to enable the inclination and the angle of attack deflection of the propeller blade assembly to be accurately controlled, the power device is a servo motor.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model adopts two groups of swing arms which are distributed in a cross shape, and solves the problem that the whole rotor head in the prior art generates shimmy when encountering strong air flow, thereby influencing the propellers of other groups and causing the whole propeller assembly to generate shimmy. When one of the propellers generates strong shimmy, the propeller is connected through the swing arm, so that the shimmy is absorbed by the swing arm, the shimmy transmission among the propellers is well blocked, and the stability of the toy remote control helicopter in the flight process is enhanced.

The utility model is further described below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic perspective view of a directional control mechanism according to the present utility model.

Fig. 2 is an exploded view of the directional control mechanism according to the present utility model.

Fig. 3 is a schematic top view of the directional control mechanism according to the present utility model.

Fig. 4 is a schematic exploded view of the present utility model.

Fig. 5 is a schematic view of the overall structure of the present utility model.

Reference numerals: 1. a body; 2. a driving mechanism; 3. two propeller assemblies; 4. a direction control mechanism; 31. a propeller; 41. swing arms; 42. an angle deflection control structure; 43. a power device; 421. a swinging disc; 422. a linkage rod; 423. a driving rod; 424. an inner connecting sleeve; 425. an outer connecting sleeve; 426. a bearing; 427. an arc-shaped convex arm; 5. a positioning groove; 51. positioning columns; 6. a limiting piece; 61. a limit groove; 21. a driving motor; 22. a gear; 23. a transmission gear; 24. a rotation shaft; 25. a shaft sleeve.

Detailed Description

While the systems and processes described herein are susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and will herein be described in detail, with the understanding that the systems and processes are not intended to be limited to the specific forms disclosed. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure.

As shown in fig. 1 to 5, the toy remote controlled helicopter includes: the device comprises a machine body 1, a driving mechanism 2 arranged on the machine body 1, two groups of propeller assemblies 3 connected with the driving mechanism 2 and a direction control mechanism 4 used for controlling the angle deflection of each propeller assembly 3, wherein each group of propeller assemblies 3 respectively consists of two propellers 31, the direction control mechanism 4 comprises two swing arms 41 connected with the driving mechanism 2 and distributed in a cross shape, an angle deflection control structure 42 connected with the two swing arms 41 and two groups of power devices 43 connected with the angle deflection control structure 42, each swing arm 41 is respectively connected with one group of propeller assemblies 3, and the two groups of power devices 43 are arranged on the machine body 1.

In the embodiment of fig. 1-2, the two sets of power devices 43 are arranged in a symmetrical fashion and are connected to respective arcuate arms 427. In other embodiments, the two power devices 43 are fixedly connected to the corresponding arcuate arms 427.

The swing arms 41 in this embodiment are concave, and the two swing arms 41 are connected by a cross-shaped shaft sleeve 25, and are disposed at two ends of the shaft sleeve 25 in a vertically embedded manner. And the two ends of the swing arm 41 are fixedly connected with the propeller 31, two opposite angles of each swing arm 41 are respectively provided with two bulges, the top ends of the bulges are spherical and are used for being connected with the angle deflection control structure 42, the deflection angle of the swing arm 41 is adjusted, and then the angle of attack of the propeller 31 is controlled, so that the deflection of the toy remote control helicopter in front, back, left and right directions is realized.

In the actual running process, when one propeller 31 of any 2 opposite propellers 31 deflects leftwards and rightwards, the propeller 31 deflected leftwards and rightwards deflects leftwards and rightwards with the other opposite propeller 31 through the swing arm 41, and finally, the situation that any two opposite propellers 31 are always in the same plane is realized. In addition, when one of the propellers 31 is subjected to vibration of strong airflow, the concave swing arm 41 absorbs the vibration, so that the stability of the toy remote control helicopter in the flying process is enhanced.

In addition, the angle deflection control structure 42 should include a swing plate 421, a link 422 and a driving rod 423, wherein the lower end of the link 422 is movably connected with the swing plate 421, and the upper end thereof is movably connected with the swing arm 41; the upper end of the driving rod 423 is movably connected with the swinging disc 421, the lower end of the driving rod 423 is movably connected with the power device 43, two linkage rods 422 are respectively arranged at opposite angles of each swinging arm 41, each power device 43 is respectively connected with one driving rod 423, and the lower end of the driving rod 423 is eccentrically connected with the output end of the power device 43.

The oscillating plate 421 includes an inner connecting sleeve 424 and an outer connecting sleeve 425, the inner connecting sleeve 424 and the outer connecting sleeve 425 are rotatably connected together by a bearing 426, the lower end of the connecting rod 422 is movably connected to the inner connecting sleeve 424, the upper end of the driving rod 423 is movably connected to the outer connecting sleeve 425, and the inner connecting sleeve 424 is sleeved on the rotating shaft 426 of the driving mechanism 2 and a gap is reserved in front of the rotating shaft 426.

The connection between the linkage rod 422 and the swing arm 41 and the swing disk 421, and the connection between the driving rod 423 and the swing disk 421 and the power device 43 are all spherical joints. Specifically, two arc protruding arms 427 extending upwards are symmetrically arranged on the outer side wall of the outer connecting sleeve 425 of the swinging disc 421, the upper end of each arc protruding arm 427 is provided with a spherical connector, the arc protruding arms are movably connected with a driving rod 423 with ball sleeves at two ends through the ball sleeves, when two power devices 43 rotate, the swinging disc 421 is driven to incline, when the vertical distance between the ball center of the ball and the axis of the main shaft changes, the connecting part of the driving rod 423 and the swinging disc 421 is free from being pressed by external force, and the freedom degree of the connecting part is not limited, so that the connecting part can be always in a smooth state. Of course, besides the cooperation of the ball head and the ball sleeve, the universal joint can be used for realizing the connection.

In addition, in order to enable the inner connection sleeve 424 on the swing plate 421 to rotate along with the propeller assembly 3 without driving the outer connection sleeve 425 to rotate, a preset repulsive torque is provided between the inner connection sleeve 424 and the outer connection sleeve 425, so that the outer connection sleeve 425 can simultaneously drive the inner connection sleeve 424 to move in the left-right and up-down directions when simultaneously or separately rotating through the two power devices 43.

Furthermore, a positioning groove 5 is vertically arranged on the machine body 1, a positioning column 51 is arranged on the swinging plate 421, and the positioning column 51 is movably connected in the positioning groove 5. When the swing disc 421 rotates in opposite directions at the same time through the two power devices 43, the swing disc 421 can move in a preset distance range when ascending and descending, and the phenomenon that the remote control helicopter moves excessively after the power devices 43 break down is avoided, so that the propeller 31 falls off is avoided. Further enhancing the safety factor of the toy remote control helicopter in the flying process.

In some other embodiments, the drive mechanism 2 is fixedly connected with a stop 6 for preventing rotational deflection of the angular deflection control structure 42 with the drive mechanism 2. The limiting member 6 is configured as a cross structure, and each branch of the cross structure is respectively provided with a limiting groove 61, each linkage rod 422 respectively passes through the limiting groove 61, and limiting in the left-right direction of each connecting rod is realized by using the limiting groove 61.

Specifically, in this embodiment, the limiting member 6 is a cross, the middle part of the cross is provided with a perforation, the perforation on the cross passes through the rotating shaft 24 and is fixedly connected with the rotating shaft 24, and is arranged between the swinging disk 421 and the propeller 31 blade assembly, and the leg of the cross is provided with an elliptical limiting groove, and the limiting groove passes through the linkage rod 422, so that the linkage rod 422 can perform tilting motion along the preset range of the limiting groove in the tilting process.

The driving mechanism 2 comprises a driving motor 21, a transmission gear 23 meshed with an output shaft gear 22 of the driving motor 21, and a rotating shaft 24 fixedly connected with the transmission gear 23 is pushed, the upper end of the rotating shaft 24 is connected with two swing arms 41 through a shaft sleeve 25, and further the two swing arms 41 are driven to rotate.

Specifically, when the driving motor 21 is in operation, the driving motor 21 drives the transmission gear 22 at the lower end of the rotating shaft 24 to rotate through the output shaft gear 22, and the rotating shaft 24 drives the propeller assembly 3 to synchronously rotate through the shaft sleeve 25 at the top end, and in addition, the driving motor is matched with the direction control mechanism 4, so that the toy remote control helicopter generates lifting power.

As shown in fig. 2, the propeller assembly 3 includes a swing arm 41, a shaft sleeve 25, and a propeller 31, wherein spherical connectors are provided on both sides of the swing arm 41 and connected to a swing disk 421 through a link rod 422 having spherical sleeves at both ends, so that when the rotation shaft 24 rotates, the swing arm 41 is driven to rotate through the shaft sleeve 25, and meanwhile, the swing arm 41 drives an inner sleeve on the swing disk 421 connected through the link rod 422 to rotate synchronously. The shaft sleeve 7 in this embodiment is a cross shaft, by means of which the shaft sleeve acts horizontally and vertically, and by means of the linkage 422 between the propeller assembly 3 and the wobble plate 421 the angle of attack of the propeller 31 is controlled.

Working principle: the two power devices 43 are eccentric output shafts, and when the driving rods 423 rotate in opposite directions, the driving rods 423 gradually change from an inclined position to a vertical angle, so that the height of the swing disc 421 connected with the driving rods is increased, and the swing disc 421 can move upwards along the rotating shaft 426; due to the upward movement of the swinging disc 421, the distance between the inner connecting sleeve 424 of the swinging disc 421 and the swinging arm 41 connected with the connecting rod is reduced, and the swinging arm 41 is driven to rotate along the connecting end of the shaft sleeve 25 due to the upward thrust, so that the propeller 31 fixedly connected with the swinging arm 41 is driven to rotate, the attack angle of the propeller 31 is changed, namely, the larger the attack angle is, the larger the lifting force generated by the propeller assembly 3 is, so that the lifting of the toy remote control helicopter is controlled.

On the contrary, when the driving rods 423 on the two power devices 43 rotate in opposite directions, the driving rods 423 gradually rotate from the previous vertical state to an inclined angle, and then the height of the swing disc 421 connected with the driving rods 423 is lowered, so that the swing disc 421 moves downwards along the rotating shaft 426, the distance between the connecting sleeve 424 and the swing arm 41 in the swing disc 421 is increased, and the swing arm 41 is pulled downwards, so that the propeller 31 fixedly connected with the swing arm 41 is driven to rotate, and the attack angle of the propeller 31 is changed.

In addition, the two arc-shaped arms 427 symmetrically disposed on the outer side wall of the outer connecting sleeve 425 of the oscillating disc 421 are located at an angle smaller than 180 degrees between the two power devices 43, so that when a force is applied to the oscillating disc 421 by the two power devices 43 simultaneously or individually, the oscillating disc 421 is in an unbalanced state, and thus the oscillating disc 421 is tilted forward or backward.

When the toy remote control helicopter needs to fly leftwards or rightwards, the power device 43 on the left side or the right side is controlled to change the rotating angle, the driving rod 423 is used for pulling the swinging disc 421 connected with the driving rod 423 to incline leftwards or rightwards, and the linkage rod 422 is used for pulling the propeller assembly 3 connected with the driving rod 423, so that the attack angle of the propeller assembly 3 is periodically changed in the rotating process, and the aim of flying the toy remote control helicopter leftwards or rightwards is achieved.

In addition, in order to accurately control the angle of attack of the propeller by the two power units 43, the power units 43 employ a servo motor in the present embodiment.

And, still be provided with control circuit board, battery compartment and steering wheel on fuselage 1, driving motor 21 and each servo motor are connected with control circuit board electricity respectively, can install ordinary battery or rechargeable battery in the battery compartment simultaneously. The tail of the helicopter body 1 is provided with a steering engine for controlling the advancing or retreating of the helicopter. The control principle of the present utility model is the same as that of the conventional toy remote control helicopter, except that the rotor head structure is redesigned, so that the structural components of the control circuit board and the like will not be described in detail herein, but will be readily understood by those skilled in the art.

The foregoing disclosure is only illustrative of the preferred embodiments of the present utility model and is not to be construed as limiting the scope of the utility model, as it is intended to cover all modifications which fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a toy remote control helicopter, includes fuselage (1), actuating mechanism (2) of setting on fuselage (1), two sets of screw subassembly (3) that are connected with actuating mechanism (2) and be used for controlling each screw subassembly (3) angle deflection's direction control mechanism (4), every screw subassembly (3) of group are constituteed by two screw (31) respectively, its characterized in that: the steering mechanism (4) comprises two swing arms (41) which are connected with the driving mechanism (2) and are in cross arrangement, an angle deflection control structure (42) which is connected with the two swing arms (41) and two groups of power devices (43) which are connected with the angle deflection control structure (42), a group of propeller assemblies (3) are respectively connected to each swing arm (41), and the two groups of power devices (43) are arranged on the machine body (1).

2. A toy remote controlled helicopter according to claim 1 wherein: the angle deflection control structure (42) comprises a swinging disc (421), a linkage rod (422) and a driving rod (423), wherein the lower end of the linkage rod (422) is movably connected with the swinging disc (421), and the upper end of the linkage rod is movably connected with the swinging arm (41); the upper end of the driving rod (423) is movably connected with the swinging disc (421), the lower end of the driving rod is movably connected with the power device (43), two linkage rods (422) are respectively arranged at opposite angles of each swinging arm (41), each power device (43) is respectively connected with one driving rod (423), and the lower end of the driving rod (423) is eccentrically connected with the power output end of the power device (43).

3. A toy remote controlled helicopter according to claim 2 wherein: the swinging disc (421) comprises an inner connecting sleeve (424) and an outer connecting sleeve (425), the inner connecting sleeve (424) and the outer connecting sleeve (425) are connected together in a relatively rotatable manner through a bearing (426), the lower end of the linkage rod (422) is movably connected to the inner connecting sleeve (424), the upper end of the driving rod (423) is movably connected to the outer connecting sleeve (425), and the inner connecting sleeve (424) is sleeved on a rotating shaft (24) of the driving mechanism (2) and is reserved with a gap in front of the rotating shaft (24).

4. A toy remote controlled helicopter according to claim 2 or 3 characterized in that: the connection between the linkage rod (422) and the swing arm (41) and the swing disc (421) and the connection between the driving rod (423) and the swing disc (421) and the power device (43) are all spherical joint connection.

5. A toy remote controlled helicopter according to claim 3 wherein: two arc-shaped protruding arms (427) extending upwards are symmetrically arranged on the outer side wall of the outer connecting sleeve (425), and the upper end of each arc-shaped protruding arm (427) is connected with the lower end of one driving rod (423).

6. A toy remote controlled helicopter according to claim 1 wherein: the machine body (1) is vertically provided with a positioning groove (5), the angle deflection control structure (42) is provided with a positioning column (51), and the positioning column (51) is movably connected in the positioning groove (5).

7. A toy remote controlled helicopter according to claim 1 wherein: the driving mechanism (2) is fixedly connected with a limiting piece (6) for preventing the angle deflection control structure (42) from rotating and deflecting along with the rotating shaft (24) of the driving mechanism (2).

8. A toy remote controlled helicopter according to claim 7 wherein: the limiting piece (6) is arranged into a cross-shaped structure, each branch of the cross-shaped structure is provided with a limiting groove (61) respectively, and each linkage rod (422) passes through the limiting groove (61) along one limiting groove (61) to realize limiting in the left-right direction.

9. A toy remote controlled helicopter according to claim 1 wherein: the driving mechanism (2) comprises a driving motor (21), a transmission gear (23) in meshed connection with an output shaft gear (22) of the driving motor (21) and a rotating shaft (24) fixed at the axis position of the transmission gear (23), and the upper end of the rotating shaft (24) is connected with two swing arms (41) through a shaft sleeve (25).

10. A toy remote controlled helicopter according to claim 1 wherein: the power device (43) is a servo motor.