CN220801913U

CN220801913U - Gear box for toy car

Info

Publication number: CN220801913U
Application number: CN202321874469.9U
Authority: CN
Inventors: 曾学信; 陈思伶
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-17
Filing date: 2023-07-17
Publication date: 2024-04-19
Anticipated expiration: 2033-07-17

Abstract

The application discloses a gear box for toy vehicles, comprising: the device comprises a case, an inertial component and three sets of gear trains. The inertia assembly is provided with an inertia wheel and an intermediate gear part which are rotatably arranged, and the intermediate gear part is combined with the inertia wheel. The three sets of gear trains are sequentially arranged at intervals along the circumferential direction of the inertia assembly, gears at the first ends of the gear trains are meshed with the intermediate gear part, gears at the second ends of the gear trains are connected with rotating shafts, and the rotating shafts are used for connecting wheels. When the toy car is pushed to walk, the wheels contacting the ground can drive the two groups of wheel trains to rotate through the rotating shaft, so that the inertia wheel is driven to rotate, and the inertia wheel rotates to drive the other group of wheel trains to rotate, so that six wheels synchronously rotate. When the toy car runs and touches an obstacle to turn over, any four wheels contact the ground, and all the wheels are kept rotating under the driving of the inertia wheels, so that the toy car can continue to run for a certain distance, and the interestingness of the toy car is improved.

Description

Gear box for toy car

Technical Field

The utility model relates to the technical field of toys, in particular to a gear box for a toy car.

Background

The inertia wheel is that a wheel shaft is additionally provided with a heavier wheel (or a heavy object is loaded on a common wheel), and after the wheel rotates, the inertia wheel is large due to the large mass, the rotation is not easy to stop, and the vehicle can be driven to continuously advance for a period of time, so that the inertia wheel is most commonly used in children toy vehicles. The flywheel toy car is characterized in that the flywheel toy car is used as an energy storage unit, has good energy storage stability and consistency, is not easy to damage, has simple structure and lower cost, and is deeply favored by children.

The flywheel toy car in the prior art is generally provided with a plurality of groups of wheels, each group comprises two wheels, the two wheels are connected through a rotating shaft, the flywheel toy car is internally provided with a flywheel and a gear box, one end of the flywheel is in transmission connection with one end of the gear box, the other end of the gear box is in transmission connection with the rotating shaft, so that the flywheel is used for carrying out inertial acceleration on the toy car, when external force is adopted to push the toy car to walk, the rear wheel of the toy car rotates to drive the rotating shaft and a group of wheels on the rotating shaft to rotate, and after the external force is removed, the rotating flywheel can drive the rotating shaft to rotate through the gear box, so that the toy car can still keep walking at a certain distance. However, when the toy car has three wheels or more on the same side, if the gear box is in transmission connection with the rotating shaft of one group of wheels, after the toy car overturns when encountering an obstacle, if the wheels in transmission connection with the gear box overturne to leave the ground, and when other wheels contact the ground, the inertia wheel only can drive the wheels leaving the ground to idle, and the wheels on one side contacting the ground cannot rotate because of no inertia wheel driving, so that the toy car cannot continue to walk, and the experience of children is poor.

In view of this, the present utility model has been made.

Disclosure of utility model

The utility model provides a gear box for a toy car.

The application provides the following technical scheme:

A gear box for a toy vehicle comprising:

a case shell;

the inertial component is arranged on the box shell and is provided with an inertial wheel and an intermediate gear part which are rotatably arranged, and the intermediate gear part is combined with the inertial wheel;

the three sets of wheel trains are arranged on the case shell, the three sets of wheel trains are sequentially arranged at intervals along the circumferential direction of the inertia assembly, gears at the first ends of the wheel trains are meshed with the intermediate gear part, gears at the second ends of the wheel trains are connected with rotating shafts, and the rotating shafts are used for connecting wheels.

Optionally, each gear of the gear train is sequentially arranged along the radial direction of the inertia wheel, and adjacent gears in the gear train are meshed.

Optionally, the gear at the first end of the gear train and the gear between the gear at the first end and the gear at the second end of the gear train are both composite gears;

each composite gear comprises a large gear and a small gear which are coaxially arranged;

In the two adjacent compound gears, a pinion gear of the compound gear close to the intermediate gear part is meshed with a bull gear of the compound gear far away from the intermediate gear part;

The large gear of the compound gear at the first end is meshed with the intermediate gear portion.

Optionally, the intermediate gear part and the flywheel are coaxially arranged;

the intermediate gear part is positioned at one side of the flywheel in the thickness direction;

the gear at the first end of the gear train is positioned at one side of the inertia wheel along the thickness direction.

Optionally, the case shell comprises three extension shell parts, one end of each extension shell part is connected, and the other end of each extension shell part is separated;

a gear train cavity is formed in the extension shell part, and an inertia cavity is formed among the three extension shell parts;

Each wheel train is at least partially positioned in a corresponding wheel train cavity, and the inertia assembly is at least partially positioned in the inertia cavity.

Optionally, an avoidance groove is formed between two adjacent extension shell parts on the case shell;

the avoidance groove is communicated with the gear train cavity and the inertia cavity;

the inertia wheel part extends out of the avoidance groove.

Optionally, the extended shell portion has a thickness sidewall;

The avoidance groove extends from the thickness side wall of one extension shell part to the thickness side wall of the adjacent other extension shell part.

Optionally, the inertial component comprises a shaft body and a spring, and the shaft body is connected to the case;

The shaft body is provided with a limit convex part;

The intermediate gear part and the flywheel are both arranged on the shaft body, the intermediate gear part can slide along the shaft body, the flywheel is provided with a clutch matching part, and the clutch matching part is provided with a first toothed ring;

The intermediate gear part is positioned between the flywheel and the limit convex part, and a second toothed ring is arranged at one end of the intermediate gear part, which is close to the flywheel;

The spring is sleeved on the shaft body, and two ends of the spring are respectively propped against the limiting convex part and the intermediate gear part, so that the first toothed ring and the second toothed ring are meshed.

Optionally, the case comprises two half-cases;

The two half shells are buckled;

The wheel train and the inertial component are each at least partially located between two of the half-shells.

By adopting the technical scheme, the application has the following beneficial effects:

When the toy car is pushed to walk, the wheels contacting the ground can drive the two groups of wheel trains to rotate through the rotating shaft, so that the inertia wheel is driven to rotate, and the inertia wheel rotates to drive the other group of wheel trains to rotate, so that six wheels synchronously rotate. When the toy car runs and touches an obstacle to turn over, and any four wheels contact the ground, the toy car can continue to run for a certain distance under the drive of the inertia wheel, so that the interestingness of the toy car is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort.

FIG. 1 is a schematic view of the external appearance of a gear box for a toy vehicle according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a toy vehicle gearbox with one side half shell removed;

FIG. 3 is a schematic diagram of an inertial assembly of a toy vehicle gearbox according to an embodiment of the present utility model;

FIG. 4 is a schematic illustration of a toy vehicle gearbox with one side half shell and inertial components removed;

Fig. 5 is a schematic structural view of a half shell on one side of a gear box for a toy vehicle according to an embodiment of the present utility model.

In the figure: the case 1, the extension case 11, the thickness side wall 111, the inertial component 2, the flywheel 21, the intermediate gear 22, the shaft 23, the limit protrusion 231, the gear train 3, the gear 31 at the first end, the gear 32 at the second end, the rotating shaft 4, and the escape groove a.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model, and the following embodiments are used to illustrate the present utility model, but are not intended to limit the scope of the present utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 5, an embodiment of the present application provides a gear box for a toy vehicle, comprising: a case 1, an inertial component 2 and three sets of gear trains 3. The inertial component 2 is arranged on the case 1, the inertial component 2 is provided with an inertial wheel 21 and an intermediate gear part 22 which are rotatably arranged, and the intermediate gear part 22 is combined with the inertial wheel 21. The intermediate gear portion 22 and the flywheel 21 may be integrally connected, or may be separate members, and the intermediate gear portion and the flywheel 21 may be integrally combined under the urging of the elastic member, so that they can rotate synchronously. The three groups of gear trains 3 are all arranged on the case 1, the three groups of gear trains 3 are sequentially arranged at intervals along the circumferential direction of the inertia assembly 2, gears 31 at the first ends of the gear trains 3 are all meshed with the intermediate gear part 22, gears 32 at the second ends of the gear trains 3 are connected with rotating shafts 4, and the rotating shafts 4 are used for connecting wheels. When the toy car is pushed to walk, the wheels contacting the ground can drive the two groups of wheel trains to rotate through the rotating shaft, so that the inertia wheel is driven to rotate, and the inertia wheel rotates to drive the other group of wheel trains to rotate, so that six wheels synchronously rotate. When the toy car runs and touches an obstacle to turn over, any four wheels contact the ground, and all the wheels are kept rotating under the driving of the inertia wheels, so that the toy car can continue to run for a certain distance, and the interestingness of the toy car is improved.

As shown in fig. 2, the gears of the gear train 3 are sequentially arranged along the radial direction of the flywheel 21, and adjacent gears in the gear train 3 are meshed.

As shown in fig. 4, the gear 31 at the first end of the gear train 3 and the gear between the gear 31 at the first end and the gear 32 at the second end of the gear train 3 are both compound gears. Each composite gear comprises a large gear and a small gear which are coaxially arranged. Of the adjacent two composite gears, the pinion gear of the composite gear close to the intermediate gear portion 22 and the bull gear of the composite gear distant from the intermediate gear portion 22 are engaged. The bull gear of the compound gear of the first end meshes with the intermediate gear portion 22. The flywheel 21 rotates to drive the intermediate gear portion 22 rotates, the intermediate gear portion 22 rotates to drive the bull gear of the compound gear at the first end to rotate, the bull gear and the pinion are coaxial integrated gears, the pinion drives the bull gear of the compound gear far away from the intermediate gear portion 22 to rotate, the purpose of wheel speed reduction is achieved through the transmission mode, and the child playing experience is good.

As shown in fig. 3, the intermediate gear portion 22 and the flywheel 21 are coaxially disposed, the intermediate gear portion 22 is located on one side of the flywheel 21 in the thickness direction, and the gear 31 at the first end of the gear train 3 is located on one side of the flywheel 21 in the thickness direction. In this way, the flywheel 21 and the gear 31 at the first end of the gear train 3 are arranged in a staggered manner, and the flywheel 21 and the gear 31 at the first end of the gear train 3 do not interfere with each other and collide when rotating.

In one possible embodiment, as shown in fig. 5, the case 1 includes three extension shells 11, one end of each extension shell 11 is connected, the other end of each extension shell is separated, a gear train cavity is formed in the extension shell 11, an inertia cavity is formed between the three extension shells 11, each gear train 3 is at least partially located in a corresponding gear train cavity, and the inertia component 2 is at least partially located in the inertia cavity.

The case shell 1 is provided with an avoidance groove a between two adjacent extension case parts 11, the avoidance groove a is communicated with the gear train 3 cavity and the inertia cavity, and the inertia wheel 21 partially extends out of the avoidance groove a. The arrangement of the avoidance groove a advantageously reduces the volume of the case 1, so that the gear box for toy vehicles of the present application can be adapted to toy vehicles with smaller appearance.

As shown in fig. 1 and 2, the extension case portion 11 has a thickness sidewall 111, and the escape groove a extends from the thickness sidewall 111 of one extension case portion 11 to the thickness sidewall 111 of the adjacent other extension case portion 11.

In one possible embodiment, as shown in fig. 3, the inertia assembly 2 includes a shaft body 23 and a spring (not shown), the shaft body 23 is connected to the case 1, a limit protrusion 231 is disposed on the shaft body 23, the intermediate gear portion 22 and the flywheel 21 are both disposed on the shaft body 23, the intermediate gear portion 22 can slide along the shaft body 23, and the flywheel 21 has a clutch engagement portion with a first toothed ring (located on the left side of the flywheel 21 in fig. 3). The intermediate gear portion 22 is located between the flywheel 21 and the limit protrusion 231, and a second gear ring is disposed at one end of the intermediate gear portion 22 near the flywheel 21. The spring is sleeved on the shaft body 23, and two ends of the spring respectively prop against the limiting convex part and the intermediate gear part 22, so that the first toothed ring and the second toothed ring are meshed, and the intermediate gear 22 and the flywheel 21 can synchronously rotate. The structural design has the function of automatic clutch, and when the load between the middle gear part 22 and the inertia wheel 21 is overlarge, the ring gear is easy to damage, and the service life of the toy car is influenced. Through set up separation and reunion cooperation portion on flywheel 21, when flywheel 21 hypervelocity rotation causes the load too big, and second ring gear can roll off first ring gear, and both skid mutually, has protected the ring gear, prevents that the ring gear is impaired, has promoted the life of toy car.

The case 1 comprises two half-shells, the two half-shells are buckled, and the wheel system 3 and the inertia assembly 2 are at least partially positioned between the two half-shells. The design of the gear box modularized integrated body for the toy car enables the structure to be more compact and the disassembly to be convenient.

The gear box for the toy car can be applied to a toy car, and the toy car comprises a shell, two walking components and the gear box for the toy car. The two opposite sides of the shell can be respectively provided with a rotary supporting shaft, and the rotary supporting shafts on the two sides are positioned on the same straight line. Two walking components are arranged on two sides of the shell along the length direction of the rotary supporting shaft, each walking component comprises three wheels which are arranged at intervals in sequence along the circumferential direction of the rotary supporting shaft, and the extension length of the rotary supporting shaft is greater than the thickness of each wheel. The gear box for the toy car is arranged in the shell, and two ends of the three rotating shafts 4 are respectively connected with one wheel.

The wheels of each traveling assembly are located in the same plane, and the rotary support shaft penetrates through the plane. When the toy car turns on one's side, the rotatory back shaft contacts ground earlier, the tip of rotatory back shaft is provided with smooth evagination surface. The smooth convex surface prevents the swivel support shaft from resting on the ground, allowing the toy vehicle to swivel in a changed walking direction.

The preferred embodiments of the application disclosed above are intended only to assist in the explanation of the application. The preferred embodiments are not exhaustive or to limit the application to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and the practical application, to thereby enable others skilled in the art to best understand and utilize the application. The application is limited only by the claims and the full scope and equivalents thereof.

Claims

1. A gear box for a toy vehicle, comprising:

a case shell;

2. The toy vehicle gearbox of claim 1, wherein gears of the train are disposed in sequence in a radial direction of the flywheel, adjacent gears of the train being meshed.

3. The toy vehicle gearbox of claim 2, wherein the gear of the first end of the train and the gear of the train between the gear of the first end and the gear of the second end are both compound gears;

4. A toy vehicle gearbox according to claim 3, wherein said intermediate gear portion and said flywheel are coaxially arranged;

5. The toy vehicle gearbox of claim 4, wherein the housing includes three elongated housing portions, one end of each of the elongated housing portions being connected and the other end of each of the elongated housing portions being separated;

6. The toy vehicle gearbox of claim 5, wherein a relief groove is provided in the housing between two adjacent elongated housing portions;

the inertia wheel part extends out of the avoidance groove.

7. The toy vehicle gearbox of claim 6, wherein the extension shell portion has a thickness sidewall;

8. The toy vehicle gearbox of claim 7, wherein the inertial assembly includes a shaft and a spring, the shaft being connected to the housing;

The shaft body is provided with a limit convex part;

9. The toy vehicle gearbox of claim 1, wherein the housing comprises two half shells;

The two half shells are buckled;