A toy vehicle capable of automatic turn-back movement

Abstract

The utility model provides a kind of toy car that can automatically turn back and move, including turn-back component, the turn-back component includes transmission gear connected on power box, and the transmission gear clutch connection of push gear, and eccentrically set on the telescopic piece of the middle axis of car body on the side of the car body bottom, the wheel surface of push gear is protruded with eccentric block to the side away from its rotating shaft, the telescopic piece includes the body of setting for the wheel surface of push gear and telescopic foot fixed on the body, the body is connected with the car body bottom between elastic member, the body is reciprocating under the push of the eccentric block and the elastic member, so that the telescopic foot can extend or retract in the car body;When the telescopic foot extends to the ground outside the car body, the wheel of the same side of the telescopic foot in the wheel set is off the ground while the wheel of the other side touches the ground, so that the car body can rotate around telescopic foot to realize turn back and change direction.

Description

Technical Field

[0001] This utility model relates to the field of toy car technology, and more particularly to a toy car that can automatically fold back and move. Background Technology

[0002] In existing toy car drive mechanisms, if an obstacle is encountered during forward or backward movement, the output shaft can be moved, engaging different intermediate gears to change the direction of rotation. This allows the toy car to adjust its direction and continue moving until the spring energy is exhausted. Examples include the plastic gearbox provided by Chinese Utility Model Patent CN208778604U and the steerable toy car provided by Chinese Utility Model Patent CN207871521U. To enable toy cars to move automatically back and forth, Chinese Utility Model Patent CN221867379U discloses an automatically reciprocating toy car drive mechanism that uses a sliding plate and movable gears to achieve automatic steering while driving the wheels. However, this toy car drive mechanism suffers from relatively complex component structures, inconvenient installation, and increased costs. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a toy car that can automatically turn back and move.

[0004] To achieve the aforementioned objective, this utility model provides a toy car capable of automatic reversing movement, comprising a car body, multiple wheel sets rotatably connected to the car body, and a power box providing rotational force to one of the wheel sets. It also includes a reversing assembly, which comprises a transmission gear connected to the power box, a push gear engaged with the transmission gear, and a telescopic member disposed on one side of the bottom of the car body, offset from the central axis of the car body. An eccentric block protrudes from the wheel surface of the push gear on the side away from its axis of rotation. The telescopic member comprises a body disposed opposite the wheel surface of the push gear and a telescopic foot fixed to the body. An elastic member connects the body to the bottom of the car body. The body reciprocates under the push of the eccentric block and the elastic member, allowing the telescopic foot to extend or retract into the car body. When the telescopic foot extends outward from the car body and touches the ground, the wheel on the same side as the telescopic foot in the wheel set lifts off the ground while the wheel on the other side touches the ground.

[0005] As a preferred embodiment, the telescopic foot includes a column integrally fixed to the body, the elastic element is sleeved on the column, and an embedding block is provided at the end of the column away from the body, and a silicone column foot is detachably embedded and fixed on the embedding block.

[0006] As a preferred embodiment, when the silicone pillar is detached from the pillar, the pillar can still be controlled to extend outward from the vehicle body. At this time, the extension length of the pillar is less than the distance between the contact point of the wheel and the bottom of the vehicle body, so that both wheels in the wheel assembly are in contact with the ground.

[0007] As a preferred embodiment, a push rod is integrally fixed on the side of the main body opposite to the column. The push rod extends out of the vehicle body and can be moved into the vehicle body under force to push the main body to move and drive the column to extend out of the vehicle body.

[0008] As a preferred embodiment, a decorative element is detachably connected to the end of the push rod that protrudes from the vehicle body.

[0009] As a preferred embodiment, the transmission gear and the push gear are provided with two gear surfaces that are connected in a one-way meshing manner. A spring is connected to the other side of the push gear that is opposite to its gear surface. The spring is used to push the push gear to move and mesh with the transmission gear.

[0010] As a preferred embodiment, the reversing assembly further includes at least one transition gear that is sequentially meshed with the power output shaft of the power box and is fixedly disposed coaxially outside the power box. The transition gear is meshed with the transmission gear.

[0011] As a preferred embodiment, the vehicle body includes a fixedly connected body shell and chassis. The chassis has a mounting seat on a side offset from the vehicle's central axis. The mounting seat has two opposite connecting grooves. The shafts of the transmission gear and the push gear are rotatably engaged in the connecting grooves. The main body is movably connected within the mounting seat, and the elastic element abuts against the main body between the bottom wall of the mounting seat and the main body. The bottom wall of the mounting seat has a through hole for the telescopic foot to enter and exit.

[0012] As a preferred embodiment, the body includes a first plate and a second plate that are integrally fixed. The width of the first plate is smaller than the width of the second plate. The first plate is movably connected within the mounting base and is provided with the telescopic foot. A groove is recessed inward at the connection between the first plate and the second plate, and the groove is movably engaged with the side wall of the mounting base.

[0013] As a preferred embodiment, the mounting base is provided with a first sliding groove and a second sliding groove at intervals along the placement direction of the body. Both the first sliding groove and the second sliding groove extend downward from the top side of the mounting base. The width of the first sliding groove matches the width of the first plate and the first plate is movable and engaged within the first sliding groove. The second sliding groove is disposed on the side wall of the mounting base and the slot is movable and engaged within it.

[0014] Therefore, based on the technical means of this utility model, the effects that this utility model can achieve are briefly described as follows: The toy car provided by this utility model, which can automatically fold back and move, can simultaneously have its transmission gear driven by the power box to continuously rotate the drive gear during the rotation of the wheel assembly. The eccentric block of the drive gear, in cooperation with the elastic element, can push the telescopic component to reciprocate within the vehicle body. Since the telescopic component is located on one side of the bottom of the vehicle body away from the central axis, when the telescopic foot of the telescopic component extends outwards and touches the ground, the wheel on the same side of the wheel assembly as the telescopic foot leaves the ground, while the wheel on the other side of the wheel assembly remains in contact with the ground and rotates. This allows the vehicle body to rotate around the telescopic foot to achieve folding back and reversing direction. When the telescopic foot retracts into the vehicle body, both wheels of the wheel assembly touch the ground and move in a straight line. Therefore, the toy car provided by this utility model can automatically fold back and move during the continuous output of power from the power box. Compared to existing drive structures with many gear parts and complex assembly, the folding component can be easily assembled outside the existing power box, with a simple structure and easy assembly, which helps to improve assembly efficiency and save production costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.

[0016] Figure 2 for Figure 1 A schematic diagram of the structure when the telescopic foot extends outward from the vehicle body and touches the ground.

[0017] Figure 3 for Figure 1 A schematic diagram of the exploded structure of a toy car.

[0018] Figure 4 for Figure 3 Exploded view of the telescopic component.

[0019] Figure 5 for Figure 1 A schematic diagram of the internal structure of a toy car.

[0020] Figure 6 for Figure 1 A cross-sectional view of a toy car.

[0021] Figure 7 for Figure 2 A cross-sectional view of a toy car.

[0022] Figure 8 This is an exploded structural diagram of the telescopic component in other embodiments of the present invention.

[0023] In the diagram: 1: Vehicle body; 11: Vehicle shell; 12: Vehicle chassis; 121: Mounting seat; 1211: Connecting groove; 1212: Through hole; 1213: First sliding groove; 1214: Second sliding groove; 2: Wheel set; 3: Power box; 4: Reversing assembly; 41: Transmission gear; 42: Push gear; 400: Gear surface; 421: Eccentric block; 43: Telescopic component; 431: Body; 4311: First plate; 4312: Second plate; 4313: Slot; 432: Telescopic foot; 4321: Column; 4322: Embedded block; 4323: Silicone column foot; 433: Push rod; 44: Elastic component; 45: Transition gear. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. It is understood that the accompanying drawings are provided for reference and illustration only and are not intended to limit the present utility model. The connections shown in the drawings are only for clear description and do not limit the connection method.

[0025] It should be understood that terms such as "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer" are used to describe the directional or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, not to indicate that the device or element referred to must have a specific directional or positional relationship, and therefore should not be construed as a limitation of the present invention. It should be noted that when one component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intervening component present. It should be understood that terms such as "first" and "second" are only for the convenience of describing the technical solution of the present invention, and are not to indicate that the device or element referred to must have a specific order, and therefore should not be construed as a limitation of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification of the present invention is for the purpose of describing particular embodiments only and is not intended to limit the present invention.

[0026] Please refer to the following at the same time Figure 1-7 This embodiment provides a toy car that can automatically turn back and move, including a body 1, a plurality of wheel sets 2 rotatably connected to the body 1, a power box 3 that provides rotational force to one of the wheel sets 2, and a turning component 4 installed in the body 1 and drivenly connected to the power box 3.

[0027] The vehicle body 1 includes a fixedly connected body shell 11 and chassis 12. The body shell 11 and chassis 12 can be detachably fixed using common fixing methods in the art, including but not limited to fixing with screws or other threaded parts, fixing with snap-fit ​​structures, and fixing with insert slot structures. A mounting seat 121 is provided on the side of the chassis 12 that is offset from the vehicle's central axis. The mounting seat 121 is used to allow the transmission gear, push gear, and telescopic component in the retraction assembly 4 to be relatively stably installed within the vehicle body 1. Two connecting grooves 1211 are formed opposite to each other on the mounting seat 121. The shafts of the transmission gear and the push gear are rotatably engaged within the connecting grooves 1211, allowing the transmission gear and the push gear to be rotatably mounted within the mounting seat 121. The body of the telescopic component is movably connected within the mounting seat 121, and a spring or other elastic element abuts against the body between the bottom wall of the mounting seat 121 and the body. A through hole 1212 is provided on the bottom wall of the mounting seat 121 for the telescopic foot of the telescopic component to enter and exit. Furthermore, in this embodiment, to improve the stability of the body's movement within the mounting base 121 and prevent displacement or misalignment when the body is moved under force, the mounting base 121 is also provided with a first sliding groove 1213 and a second sliding groove 1214 at intervals along the placement direction of the body. Both the first sliding groove 1213 and the second sliding groove 1214 extend downwards from the top side of the mounting base 121, allowing the body to pass through the top openings of the first sliding groove 1213 and the second sliding groove 1214 for fixed connection within the mounting base 121. The width of the first sliding groove 1213 matches the width of the first plate of the body, allowing the first plate to be moved and engaged within the first sliding groove 1213, thereby ensuring a stable connection to the body. The second sliding groove 1214 is located on the side wall of the mounting base 121 and has a slot within it that engages with the body, further ensuring a stable connection of the body to the mounting base 121. Of course, in other embodiments, the first slide groove 1213 and / or the second slide groove 1214 may not be provided on the mounting base 121, in which case the main body is directly and movably accommodated in the mounting base 121.

[0028] In this embodiment, there are two sets of wheel sets 2: a front wheel set rotatably connected to the front end of the vehicle body 1 and a rear wheel set rotatably connected to the rear end of the vehicle body 1. The axle of the rear wheel set is fixed to the power output end of the power box 3, so that when the power box 3 is in the power output state, it can drive the rear wheel set to rotate to realize the toy car's movement. It should be noted that the power box 3 adopts an existing power box structure, including but not limited to a spring-loaded power box, an electric motor power box, a flywheel power box, etc. Since the working principle of the existing power box structure driving the rear wheel set to rotate has been disclosed in the prior art, it will not be described in detail here. In other embodiments, the number of wheel sets 2 can be adjusted to more than three depending on the vehicle model of the vehicle body 1.

[0029] The reversing assembly 4 includes a transmission gear 41 connected to the power box 3, a push gear 42 engaged with the transmission gear 41, and a telescopic member 43 offset from the central axis of the vehicle body 1 and located on one side of the bottom of the vehicle body 1. In this embodiment, two gear surfaces 400 are provided between the transmission gear 41 and the push gear 42 for one-way meshing connection. A spring is connected to the other side of the push gear 42 opposite to its gear surface 400. The spring is used to push the push gear 42 to move and mesh with the transmission gear 41, thereby realizing the engagement and disengagement connection between the transmission gear 41 and the push gear 42. It can be understood that the two gear surfaces 400 for one-way meshing connection can prevent the power box 3 from driving the push gear 42 to rotate through the transmission gear 41 when the toy car uses a spring-loaded power box or flywheel power box structure. Of course, in other embodiments, if the toy car uses an electric motor power box, the two gear surfaces 400 between the transmission gear 41 and the push gear 42 can be a meshing connection structure.

[0030] An eccentric block 421 protrudes from the wheel surface of the drive gear 42 on the side away from its axis of rotation. The eccentric block 421 is used to push the telescopic member 43 into the mounting base 121 during the continuous rotation of the drive gear 42. The telescopic member 43 includes a body 431 disposed opposite to the wheel surface of the drive gear 42 and a telescopic foot 432 fixed on the body 431. The body 431 is movably connected to the mounting base 121 and an elastic member 44 is connected between the body 431 and the bottom wall of the mounting base 121. The body 431 can reciprocate within the mounting base 121 under the push of the eccentric block 421 and the elastic member 44, so that the telescopic foot 432 can extend or retract into the vehicle body 1 through the through hole 1212. In this embodiment, the body 431 includes a first plate 4311 and a second plate 4312 integrally fixed. The width of the first plate 4311 is smaller than the width of the second plate 4312. The first plate 4311 is movably engaged in the first slide groove 1213 and is provided with a telescopic foot 432. A groove 4313 is recessed inward at the connection between the first plate 4311 and the second plate 4312, and the groove 4313 is movably engaged in the second slide groove 1214. Of course, in other embodiments, the body 431 may only have a first plate 4311 that can be movably accommodated in the mounting base 121.

[0031] It is understood that the telescopic foot 423 includes a column 4321 integrally fixed to the first plate 4311, an elastic element 44 sleeved on the column 4321, and an insert block 4322 at the end of the column 4321 away from the main body 431. A silicone foot 4323 is detachably fitted and fixed to the insert block 4322. The silicone foot 4323 can increase the friction between the telescopic foot 432 and the contact surface, thereby reducing the possibility of the telescopic foot 432 slipping and affecting the normal operation of the reversing function. At the same time, the method of detachably fitting the silicone foot 4323 to the insert block 4322 helps to replace the silicone foot 4323 when it is worn or damaged, thereby improving the service life of the telescopic foot 432.

[0032] In this embodiment, the reversing assembly 4 also includes a transition gear 45. The transition gear 45 is coaxially fixed to the outside of the power box 3 with the power output shaft of the power box 3, and the transition gear 45 is meshed with the transmission gear 41. When the power box 3 is in the kinetic energy release state, the transition gear 45 rotates simultaneously and drives the transmission gear 41 to rotate, so that the transmission gear 41 can drive the push gear 42 to rotate continuously, thereby enabling the eccentric block 421 to push the body 431 to move at intervals, so that the telescopic foot 432 can extend outwards from the vehicle body 1 to touch the ground at intervals. When the telescopic foot 432 extends outwards from the vehicle body 1 to touch the ground, the wheel on the same side as the telescopic foot 432 in the rear wheel set is off the ground while the wheel on the other side touches the ground. Therefore, the wheel that is still in the state of rotating on the ground can drive the vehicle body 1 to rotate around the telescopic foot 432 to achieve reversing direction. When the eccentric block 421 rotates upwards, the body 431 moves and resets under the push of the elastic member 44, so that the telescopic foot 432 can retract into the vehicle body 1. When the telescopic foot 432 retracts into the vehicle body 1, both wheels of the rear wheel assembly touch the ground and move in a straight line. Therefore, as the telescopic foot 432 repeatedly extends and retracts into the vehicle body 1, the toy car can automatically perform a turning-back movement. Of course, in other embodiments, the turning-back assembly 4 may not have a transition gear 45, in which case the transmission gear 41 is coaxially fixed on the power output shaft of the power box 3. There can be multiple transition gears 45, which are sequentially meshed and connected, with the two end transition gears 45 respectively connected to the power output shaft of the power box 3 and the transmission gear 41.

[0033] In other embodiments, when the silicone pillar 4323 is detached from the pillar 4321, the pillar 4321 can still extend outwards from the vehicle body 1 in a controlled manner. At this time, the extension length of the pillar 4321 is less than the distance between the contact point of the wheel and the chassis 12, ensuring that both wheels in the wheel assembly 2 are in contact with the ground. That is, if the main body 4321 does not have the silicone pillar 4323, the toy car cannot achieve the function of automatic turning back. The above configuration allows players to adjust whether the toy car has an automatic turning back function as needed for different types of play. To improve the ease of assembling and disassembling the silicone pillar 4323, such as... Figure 8 As shown, a push rod 433 is integrally fixed on the side of the main body 431 opposite to the column 4321. The push rod 433 extends out and protrudes from the vehicle body 1 (specifically, the vehicle shell 11), and can be moved inward under force to push the main body 431 to move, thereby causing the column 4321 to extend outward from the vehicle body 1. It can be understood that a decorative piece is detachably connected to the end of the push rod 433 protruding from the vehicle body 1. The decorative piece has the shape of a flag, cartoon item, etc., which not only serves to decorate the appearance of the toy car, but also facilitates the player's operation by pressing the push rod 433 to move it.

[0034] For clarity, certain features described in individual embodiments of the present invention may be used in combination in a single embodiment. Furthermore, various features of the present invention described in individual embodiments may also be used individually or in any suitable form in sub-combinations.

Claims

1. A toy car capable of automatically turning back and forth, comprising a body, a plurality of wheel sets rotatably connected to the body, and a power box providing rotational force to one of the wheel sets, characterized in that, It also includes a reversing assembly, which includes a transmission gear connected to the power box, a drive gear engaged and disengaged with the transmission gear, and a telescopic member disposed on one side of the bottom of the vehicle body, offset from the central axis of the vehicle body. An eccentric block protrudes from the wheel surface of the drive gear on the side away from its axis of rotation. The telescopic member includes a body disposed opposite the wheel surface of the drive gear and a telescopic foot fixed to the body. An elastic member is connected between the body and the bottom of the vehicle body. The body reciprocates under the push of the eccentric block and the elastic member, so that the telescopic foot can extend or retract into the vehicle body. When the telescopic foot extends outward from the vehicle body and touches the ground, the wheel on the same side as the telescopic foot in the wheel set is off the ground while the wheel on the other side touches the ground.

2. The toy car capable of automatically turning back as described in claim 1, characterized in that, The telescopic foot includes a column integrally fixed to the body, the elastic element is sleeved on the column, and an embedding block is provided at the end of the column away from the body. A silicone column foot is detachably embedded and fixed on the embedding block.

3. The toy car capable of automatically turning back as described in claim 2, characterized in that, When the silicone pillar is detached from the pillar, the pillar can still extend outwards from the vehicle body in a controlled manner. At this time, the extension length of the pillar is less than the distance between the contact point of the wheel and the bottom of the vehicle body, so that both wheels in the wheel assembly are in contact with the ground.

4. The toy car capable of automatically turning back as described in claim 3, characterized in that, A push rod is integrally fixed on one side of the main body opposite to the column. The push rod extends out of the vehicle body and can be moved into the vehicle body under force to push the main body to move and drive the column to extend out of the vehicle body.

5. The toy car capable of automatically turning back as described in claim 4, characterized in that, A decorative element is detachably connected to the end of the push rod that protrudes from the vehicle body.

6. The toy car capable of automatically turning back as described in claim 1, characterized in that, The transmission gear and the push gear are provided with two gear surfaces that are connected in one direction. A spring is connected to the other side of the push gear that is opposite to its gear surface. The spring is used to push the push gear to move and mesh with the transmission gear.

7. The toy car capable of automatically turning back as described in claim 6, characterized in that, The reversing assembly also includes at least one transition gear that is sequentially meshed with the power output shaft of the power box and is fixedly disposed coaxially outside the power box. The transition gear is meshed with the transmission gear.

8. The toy car capable of automatically turning back as described in claim 1, characterized in that, The vehicle body includes a fixedly connected body shell and chassis. The chassis has a mounting seat on a side offset from the vehicle's central axis. The mounting seat has two opposite connecting slots. The shafts of the transmission gear and the push gear are rotatably engaged in the connecting slots. The main body is movably connected to the mounting seat, and the elastic element abuts between the bottom wall of the mounting seat and the main body. The bottom wall of the mounting seat has a through hole for the telescopic foot to enter and exit.

9. The toy car capable of automatically turning back as described in claim 8, characterized in that, The main body includes a first plate and a second plate that are integrally fixed. The width of the first plate is smaller than the width of the second plate. The first plate is movably connected within the mounting base and is provided with the telescopic foot. A groove is recessed inward at the connection between the first plate and the second plate, and the groove is movably engaged with the side wall of the mounting base.

10. The toy car capable of automatically turning back as described in claim 9, characterized in that, The mounting base is provided with a first sliding groove and a second sliding groove at intervals along the placement direction of the main body. Both the first sliding groove and the second sliding groove extend downward from the top side of the mounting base. The width of the first sliding groove matches the width of the first plate and the first plate is engaged in the first sliding groove. The second sliding groove is provided on the side wall of the mounting base and the slot is engaged in the second sliding groove.

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