CN2681799Y - Steering adjustment mechanism of a remote control toy car - Google Patents

Abstract

The utility model relates to the technical field of remote control toy products, in particular to a steering adjusting mechanism of a remote control toy car. The technical scheme is as follows: it includes: the two steering wheels are respectively hinged on a connecting block, the connecting block capable of moving up and down is hinged on the vehicle body, and two ends of a connecting rod are hinged with the left connecting block and the right connecting block to form a hinge slewing mechanism; an electromagnetic coil is arranged at one end of each of the two connecting blocks; the first magnet is positioned between the two electromagnetic coils, and the second magnet is positioned above the first magnet and fixed on the connecting rod. The utility model discloses will produce the electromagnetic field when utilizing the electric current to pass through solenoid to produce the magnetic force influence between this magnetic field and the first magnet, thereby realize turning to of wheel. Meanwhile, the wheels are kept in a centered state through the mutual attraction between the second magnets and the first magnets, and the steering wheels have a space capable of moving up and down, so that the impact force in driving is eliminated, and the running of the vehicle body is more stable.

Description

Steering adjustment mechanism of a remote control toy car

Technical field:

The utility model relates to the technical field of remote control toy products, in particular to a steering adjustment mechanism for a remote control toy car.

Background technique:

Remote control toy car is a relatively popular toy, and it usually uses the form of front wheel steering to realize its change of running direction. The operator can change the direction and speed at will through the remote control. At present, among such remote-control toys, there is a remote control device that utilizes an electric motor to drive the steering, such as described in US Patent Specification US.NO.5,281,184. Although the principle of the device is simple, there are also some disadvantages, for example: when the wheel deflects (to the left or right) to the maximum limit, if the power supply is continued at this time, the output gear cannot rotate, and the motor will be damaged due to overheating. In order to overcome this problem, this patent specification discloses a separate structure, so that the gears can rotate continuously, but this virtually increases the complexity of the design; Suitable for small toys. In addition, in the U.S. patent specification US.NO.4571213, a remote control device that utilizes electromagnetic force to control steering is described. The device is provided with a steering link, and two permanent magnets with opposite magnetic poles are installed on the steering link. energized to drive the movement of the steering linkage. The direction of movement of the steering linkage is determined by the polarity of the magnetic field generated by the coil. A solution is also proposed in the US patent specification US. Some magnets are distributed, and the direction of attraction of the magnet to the electromagnetic coil is changed by changing the magnitude and direction of the current in the electromagnetic washer, thereby driving the wheel shaft to rotate and realizing the steering of the wheel. Although these products have made some progress compared with the above-mentioned products, they still cannot solve the problem of complex design, such as the reset of the wheels, that is, under normal conditions, the wheels should be guaranteed to be in a straight-line driving state without causing the car body to deviate from the driving road, or After the turning action is completed, the wheels should return to their original state, but the current products use complex mechanisms to solve this problem, and their performance is unstable.

On the other hand, when the toy car is driving on the ground (or runway), it cannot guarantee the absolute smoothness of the driving road surface. If some unevenness occurs, the wheels of the toy car will be in a bumpy state, and the wheels will be affected by the impact of the ground. . Yet general toy car does not possess shock-absorbing system, so the wheel of car body often falls into stagnant state because can't normally contact with ground after violent bump. Once proposed a kind of technical scheme in the U.S. patent specification that the patent No. is US. Adjust the space so that the left and right wheels can better contact the ground and play a role in shock absorption.

To sum up, the steering adjustment mechanisms of current remote-controlled toy cars only start from solving a single shortcoming, and lack the concept of comprehensive consideration.

Invention content:

The purpose of this utility model is to overcome the shortcomings of the above-mentioned products, and to provide a steering adjustment mechanism of a remote control toy car with simple design, free control, and stable operation. The wheels have a shock-absorbing effect and can adapt to various grounds.

The utility model is realized through the following technical scheme: it includes: a car body and steering wheels located on both sides of the car body, the two steering wheels are respectively hinged on a connecting block, and the connecting block that can move up and down is hinged on the car body, The two ends of a connecting rod are hinged with the left and right connecting blocks to form a hinge rotation mechanism; an electromagnetic coil is installed at the opposite end of the two connecting blocks; the first magnet is located between the two electromagnetic coils, and the second magnet is located above the first magnet and fixed on the on the connecting rod.

After the utility model adopts this structure, an electromagnetic field will be generated when the current passes through the electromagnetic coil, and a magnetic force will be generated between the magnetic field and the first magnet, thereby driving the connecting block to swing and realizing the steering of the wheel. At the same time, through the mutual attraction between the second magnet and the first magnet, the wheels are kept in the center (that is, the straight-line driving state), and the steering wheels have a space for moving up and down, so as to eliminate the driving force and make the car body run more smoothly. Stablize.

Description of drawings:

Fig. 1 is the three-dimensional structural diagram of the utility model;

Fig. 2 is an exploded view of the three-dimensional structure of the utility model;

Fig. 3 is a schematic diagram of the plane structure of the utility model;

Fig. 4 is a schematic diagram of the plane structure of the utility model;

Fig. 5 is a schematic structural view of the utility model when turning;

Fig. 6 is a schematic structural view of the utility model when it is running straight;

Fig. 7 is a schematic diagram of the working principle of the utility model.

Detailed ways:

The utility model relates to a steering adjustment mechanism for a remote control toy car, which is generally located at the front end of the remote control toy car to realize the steering of the remote control toy car.

See accompanying drawing 1,2,3,4, the utility model comprises: car body 1 and the steering wheel 2 that is positioned at car body 1 both sides. Wherein, the two steering wheels 2 are respectively hinged on a connecting block 3 to realize the rotation of the wheels 2 . The connecting block 3 is hinged on the car body 1, and its specific structure is: the upper and lower ends of the connecting block 3 are correspondingly provided with pin shafts 311, 312. Fixed and located on the fixed plate 12 above the chassis 11, the connecting block 3 is hinged on the vehicle body 1 through pin shafts 311, 312 like this. In addition, the distance between the chassis 11 and the fixed plate 12 should be greater than the height of the connecting block 3, to ensure that the connecting block 3 can slide between the chassis 11 and the fixed plate 12 through the positioning of the pin shafts 311, 312, that is, to ensure that the connecting block 3 has room to move vertically up and down.

The two ends of a connecting rod 4 are hinged with the left and right connecting blocks 3 to form a hinge rotation mechanism. The specific structure adopted by the utility model is: the two ends of the connecting rod 4 are provided with two through holes; the top of the connecting block 3 also protrudes a Bearing pin 32, the two ends of connecting rod 4 are connected between two connecting blocks 3 through hole shaft socket connection, and vehicle body 1, two connecting blocks 3 and connecting rod 4 have just constituted a parallelogram hinge mechanism like this.

An electromagnetic coil 5 is installed at opposite ends of the two connecting blocks 3, and the direction of the magnetic pole of the electromagnetic coil 5 is consistent with the direction of the axle of the wheel 2; and a first magnet 6 is arranged between the two electromagnetic coils 5 (that is, between the two connecting blocks 3) , the first magnet 6 includes two single magnets 61, 62, which are horizontally fixed on the chassis 11 of the vehicle body 1. The magnetic poles of the magnets 61 and 62 are opposite, and the center horizontal lines of the two are facing the two electromagnetic coils 5 . A second magnet 7 is arranged above one of the magnets 61 or 62 , the second magnet 7 is fixed on the connecting rod 4 , and the second magnet 7 and the magnet 61 or 62 below are attracted to each other.

The utility model mainly utilizes the influence of the electromagnetic field generated by the electric current passing through the electromagnetic coil 5 and the magnetic force between the first magnet 6 , thereby driving the connecting block 3 to swing and realizing the steering of the wheel 2 . As shown in accompanying drawing 5, after the remote control sends out the command to let the car turn left, the electromagnetic coil 5 on the connection block 3 is powered on, and the magnetic field direction generated by the electromagnetic coil 5 on the left is opposite to that of the magnet 61 , that is, the electromagnetic coil 5 on the left side will generate a certain attractive force on the magnet 61; and the magnetic field direction generated by the electromagnetic coil 5 on the right side is opposite to that of the magnet 62, that is, the electromagnetic coil 5 on the right side will generate a certain force on the magnet 62. A certain attraction force drives the wheels 2 on both sides of the car body 1 to swing to realize the steering of the wheels 2, and through the hinge rotation mechanism formed by the connecting rod 4, the deflection direction of the two wheels is consistent to ensure the stability of the steering. In the same way, the utility model can realize the right turn of the wheel 2 by changing the current direction in the electromagnetic coil 5, and its working principle is the same as above, so it will not be repeated here.

As shown in Fig. 6, when the car body 1 needs to keep running in a straight line or after the turning action is completed, it needs to restore the wheels 2 to their original state. The utility model is realized by the following principles: because a second magnet 7 is arranged above one of the magnets 61 or 62, and the second magnet 7 and the magnet 61 or 62 below attract each other, so that under the effect of no external force, The second magnet 7 will be located directly above the magnet 61 or 62, so that the connecting rod 4 is in the middle position, that is, the wheel 2 is guaranteed to be in a straight-line driving state. In addition, when the current of the electromagnetic coil 5 is disconnected and the magnetic field generated by it disappears, the second magnet 7 can ensure that the entire hinge rotation mechanism is immediately reset, so that the car body 1 can run normally. Simultaneously, because the second magnet 7 has the effect of attracting each other with a magnet in the first magnet 6, the second magnet 7 drives the connecting block 3 through the connecting rod 4 to have a tendency to move downward, and the connecting block 3 can pass through the bearing pin. The positioning of 311, 312 slides between the chassis 11 and the fixed plate 12, thus forming a spring-like damping system. That is, under normal conditions, the connecting block 3 is pressed to the lowest position under the action of the second magnet 7, and when the wheel 2 is bumped, the impact force generated by the ground on the wheel 2 will make the connecting block 3 overcome the attractive force of the second magnet 7 And move upwards to dissipate the impulsive force, avoid the car body from being damaged by a large impulsive force, and keep the car body running stably.

See Fig. 7, this is the schematic diagram of the principle that the utility model adopts, and it is to utilize electric current to pass through electromagnetic coil 5 and will produce electromagnetic field and produce magnetic influence between first magnet 6 and realize the turning of wheel 2, and it is set up by changing The direction of the current of the left and right electromagnetic coils 5 changes the direction of the magnetic field to control the direction of turning; the magnitude of the magnetic field is changed by changing the current of the left and right electromagnetic coils 5 to control the turning angle so that it reaches a suitable turning angle.

Compared with the existing products, the utility model has the advantages of simple design, free control and stable operation.

The above-described embodiments are only preferred examples of the utility model, and are not intended to limit the scope of implementation of the utility model, so all actions according to the shape, structure, characteristics and spiritual principles described in the scope of the utility model patent application Changes or modifications should be included in the patent scope of the utility model.

Claims (6)

1. A steering adjustment mechanism for a remote control toy car, comprising: a car body (1) and steering wheels (2) positioned on both sides of the car body (1), characterized in that: the two steering wheels (2) are respectively hinged on a joint On the block (3), the connecting block (3) that can move up and down is hinged on the car body (1), and the two ends of a connecting rod (4) are hinged with the left and right connecting blocks (3) to form a hinge rotation mechanism; An electromagnetic coil (5) is installed at the opposite end of the connection block (3); the first magnet (6) is located between the two electromagnetic coils (5), and the second magnet (7) is located above the first magnet (6), and is fixed on the connection on the rod (4). 2. The steering adjustment mechanism of a remote control toy car according to claim 1, characterized in that: pin shafts (311, 312) are correspondingly arranged at the upper and lower ends of the connecting block (3), and the connecting block (3) is located on the body (1) between the chassis (11) and a fixed plate (12) fixed on the top of the chassis (11); (12) Form the shaft-hole connection. 3. The steering adjustment mechanism of a remote control toy car according to claim 1, characterized in that: the direction of the magnetic field formed by the electromagnetic coil (5) is consistent with the direction of the axle of the wheel (2). 4. The steering adjustment mechanism of a remote control toy car according to claim 2, characterized in that the distance between the chassis (11) and the fixing plate (12) is greater than the height of the connecting block (3). 5. The steering adjustment mechanism of a remote control toy car according to claim 1, characterized in that: the first magnet (6) includes two single magnets (61, 62), which are horizontally fixed on the side of the car body (1). On the chassis (11), and the magnetic poles of these two magnets (61, 62) are opposite, and the two central horizontal lines are facing the two electromagnetic coils (5). 6. The steering adjustment mechanism of a remote control toy car according to claim 5, characterized in that: the second magnet (7) is located above a magnet (61 or 62) in the first magnet (6) , and the magnetic pole direction of the second magnet (7) is opposite to that of the magnet (61 or 62) below it.

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