CN209984935U - Wheel assembly of toy car and toy car - Google Patents

Abstract

The utility model discloses a wheel subassembly and toy car of toy car, including interior axle, outer axle and tire, wherein, outer axle suit is epaxial in interior, interior axle and outer axle respectively with the tire joint. The utility model discloses an outer axle sets up to hollow structure, and the end of outer axle is provided with the joint section, and when wheel and toy frame assemble, in mounting groove, the joint section is inwards warp, can relax imbed in the mounting groove of frame, and in addition, the interior axle inserts in the outer hollow cavity of axle, has occupied the space of outer axial internal deformation, makes the unable deformation of outer epaxial joint section break away from the frame again, realizes that the lock is dead, makes this toy car of unable dismantlement of infant, has improved toy car's security. Furthermore, the utility model discloses an outer axle all can move about for interior axle, tire and frame, can with interior axle and the coaxial rotation of tire, also can be in the mounting groove of frame friction rotation, the smooth nature of wheel is better.

Description

Wheel assembly of toy car and toy car

Technical Field

The utility model relates to a toy technical field, concretely relates to wheel assembly and toy car of toy car.

Background

Current toy car wheel, generally including cylindric car hub and the tire of cover on the car hub, the wheel realizes through the wheel hub connection with fixing on the frame that the drive dolly goes, such wheel suit is on fixing the shaft at the frame, when the wheel drives toy car and forwards pushes away, only one friction activity face (wheel and shaft relative rotation), the mobility of wheel is difficult to guarantee in the same direction as smooth, and when a plurality of wheels rotated simultaneously on the toy car, can go out current wheel and rotate, there is the condition that the wheel does not change, lead to whole toy car direction not smooth enough, thereby the wholeness ability of toy car has been reduced.

Patent CN104755143B discloses a toy wheel assembly and a method of manufacturing the same, comprising a rim, a tyre and an axle, wherein the tire is configured to surround an outer periphery of the rim when mounted on the rim, the axle is configured to be connected to the rim coaxially with the rim, connected in a manner to allow coaxial rotation of the rim on the axle, the rim comprising one or more protrusions configured to radially engage an outer circumferential groove provided on the axle when the axle is inserted into the axle receiving bore in the rim, and one or more protrusions are retained in the circumferential groove by the inner face of the tyre when the tyre is mounted on the rim, the wheel axle of the toy car is rotatable relative to the rim and the car frame, but the assembly requirement is high, and if the assembly tolerance does not meet the requirement, the wheel axle cannot rotate relative to the rim and the car frame, and the smoothness of the toy car is difficult to guarantee.

As described above, although the wheel assembly of the existing toy vehicle has a simple structure, the rotation is not smooth enough, the connection is not firm enough, and the requirement for installation accuracy is high. In particular, it is particularly desirable to provide a toy vehicle that is securely connected, easily installed, and smoothly rotated for an infant.

SUMMERY OF THE UTILITY MODEL

For solving current toy car wheel subassembly insecure, installation required precision height and toy car wheel rotate technical problem such as not smooth enough, the utility model discloses a first aim at provides a wheel subassembly of toy car, including interior axle, outer axle and tire, outer axle has well kenozooecium, and interior axle stretches into well kenozooecium and is connected with well kenozooecium contact, interior axle and outer axle are connected with the tire joint respectively.

Further, interior axle includes the rim, and the rim is fixed to be set up in the top of interior axle, and the terminal surface is provided with two at least lugs under the rim, and the rim passes through the lug to be connected with the tire joint.

Preferably, the rim is integrally connected with the inner shaft.

Preferably, the rim is fixedly connected with the inner shaft in a split mode.

Furthermore, the protruding part comprises an arc protrusion arranged on the lower end face of the wheel rim, and a protruding arc-shaped protruding limiting block is arranged at the end part of the arc protrusion.

Furthermore, a notch is arranged on the tire, and the inner shaft and the tire are connected with the limiting block in a clamping mode through the notch.

Further, the outer axle is including the contact section and the linkage segment that connect gradually, is equipped with backstop portion in the one end of contact section, and backstop portion is connected with the inner circle joint of tire, and the linkage segment is used for disposing wheel assembly on the toy car. The utility model discloses an outer axle sets up to hollow structure, and well kenozooecium is connected with interior axle contact, and the contact segment is connected with the contact of tire inner circle, and like this, outer axle is for interior axle and the equal relative activity of tire, has increased the running surface of wheel pivoted, makes the wheel direction more in the same direction as smooth.

Further, the outer axle still includes the joint section, and the joint section is located the lower extreme of linkage segment, and the joint section is connected with the toy car joint. The utility model discloses a joint section protrusion is in the tip of linkage segment because outer axle is hollow structure, makes the joint section can inwards warp the mounting groove that passes the toy car, and then the joint realizes that the wheel is connected with the joint of toy car at the end of mounting groove.

Further, the material of the wheel assembly is hard plastic.

A second object of the present invention is to provide a toy vehicle, including the wheel assembly of any one of the above toy vehicles. The utility model discloses a toy car can make the toy car direction more in the same direction as smooth through using above-mentioned four at least wheel subassemblies, when the toy car traveles in level and smooth or the road surface of jolting, through above-mentioned special construction's wheel subassembly, can make four at least wheels reach pivoted purpose simultaneously. Thus, playability of the toy vehicle can be improved.

The utility model discloses a wheel subassembly and toy car of toy car has following beneficial effect:

1. the utility model discloses a wheel subassembly of toy car, the end of outer axle is provided with the joint section, when the wheel assembles with the toy car, in the mounting groove of toy car, joint portion is inside to be out of shape, during the mounting groove of embedding the frame that can relax, and then the joint is at mounting groove's end.

2. The utility model discloses a wheel assembly of toy car, outer axle have well kenozooecium, and interior axle stretches into in the outer hollow cavity of axle, has occupied the space of outer axial internal deformation, makes the unable reconversion of outer epaxial joint section break away from the frame, realizes that the lock dies.

3. The utility model discloses a wheel subassembly of toy car, the arcuation stopper on the rim and the breach joint on the tire can realize that the lock of tire and rim is dead, convenient assembling and undetachable.

4. The wheel assembly and the toy car frame of the utility model can not be disassembled after being assembled, so that the connection between the wheel assembly and the toy car is firmer and more reliable; on the other hand, the toy car volume after the installation is more than the part volume of detachable toy car among the prior art, avoids the infant to swallow the condition emergence of toy car part, has improved the security of toy car.

5. The utility model discloses a wheel assembly of toy car, outer axle all can be movable for interior axle, tire and frame, can with interior coaxial rotation of axle, also can be in the mounting groove friction rotation of frame, the smoothness nature of wheel is better.

6. The utility model discloses a toy car is through using a plurality ofly the utility model discloses a wheel subassembly can make toy car more stable more in the same direction as smooth at the in-process of going, avoids toy car to appear the condition that certain wheel does not change at the in-process of walking.

Drawings

For a clearer explanation of the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Figure 1 is a major cross-sectional view of the toy vehicle wheel assembly of the present invention.

Figure 2 is a schematic cross-sectional view of an outer shaft of a toy vehicle wheel assembly of the present invention.

Figure 3 is a schematic cross-sectional view of the inner shaft of the toy vehicle wheel assembly of the present invention.

Figure 4 is a schematic cross-sectional view of a tire of a toy vehicle wheel assembly of the present invention.

Fig. 5 is a schematic view of the assembly of the wheel assembly and the frame of the toy vehicle of the present invention.

The tire comprises an inner shaft 1, an outer shaft 2, a tire 3, a frame 4, a support part 11, a limiting part 12, a rim 13, an arc limiting block 14, an arc protrusion 15, a first hollow part 22, a second hollow part 23, a stopping part 24, a contact section 25, a connecting section 26, a clamping section 27, a U-shaped notch 31, an outer ring 32, an inner ring 33, a mounting groove 34, a notch 35, an intermediate part 36, an outer cavity 37, an inner cavity 41.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

The utility model provides a wheel assembly of toy car, as shown in fig. 1-5, including interior axle 1, outer axle 2 and tire 3, outer axle 2 suit is on interior axle 1, interior axle 1 and outer axle 2 respectively with 3 joints of tire. The utility model discloses do not injecing interior axle and outer axle's shape, can with the tire joint in interior axle and outer axle can.

Specifically, as shown in fig. 3, a flange 13 is fixedly disposed above the inner shaft 1 in the present embodiment, and the flange 13 is a flat cylindrical shape and rotates coaxially with the inner shaft 1. Wherein, the lower terminal surface of rim 13 sets up two protruding portions at least, and the central angle that two adjacent protruding portions are right equals, and every protruding portion is connected with breach 34 joint that sets up on the tire respectively. In some embodiments, the projections may be two, three, four, or more. Preferably, two protruding portions are symmetrically arranged on the lower end face of the rim 13 of the present embodiment, each protruding portion includes an arc-shaped protrusion 15 arranged on the lower end face of the rim and extending along the circumferential direction of the rim, and an arc-shaped stopper 14 protruding from the outer circumferential wall of the arc-shaped protrusion and extending along the circumferential direction of the arc-shaped protrusion, wherein the arc-shaped protrusion 15 and the arc-shaped stopper 14 are both partially surrounded, the central angles of the protrusions are equal, and the outer diameter of the arc-shaped protrusion 15 is the same as the outer diameter of the rim 13. In some embodiments, the arc stopper 14 is chamfered away from the lower end of the arc protrusion 15, and the chamfer of the lower end of the arc stopper 14 starts at a position flush with the outer periphery of the rim 13. During installation, the protruding part is contracted and deformed and is forcibly pressed into the notch 34 of the tire until the arc-shaped limiting block 14 passes through the notch 34 and is clamped at the lower end of the notch 34. The arc-shaped limiting block 14 is provided with a chamfer, so that a guiding effect is realized on the pressure on the wheel rim 13 during installation, and the arc-shaped limiting block 14 can more easily penetrate through the notch 34 to realize clamping connection. After the mounting is completed, the rim 13 and the arc-shaped limiting block 14 limit the tire 3 from the upper direction and the lower direction, and the mutual locking of the tire 3 and the rim 12 is realized. The utility model discloses a protruding portion of preferred embodiment is arcuation arch and arcuation stopper, but the shape of other embodiment protruding portions can be designed into various according to actual conditions, the utility model discloses do not specifically prescribe a limit to, all belong to the utility model discloses a protection scope.

In a preferred embodiment, the rim is integrally connected with the inner shaft. In another embodiment, the rim and the inner shaft are fixedly connected in a split mode.

Specifically, as shown in fig. 4, the shape of the notch 34 on the tire is matched with the shape of the arc-shaped protrusion 15, as a more preferable embodiment, the notch 34 is configured to be arc-shaped, the outer diameter of the notch 34 is the same as the outer diameter of the outer edge 13, the inner diameter of the notch is slightly larger than the outer diameter of the arc-shaped protrusion 15, the tool withdrawal grooves are arranged in the direction of the two ends of the arc-shaped notch close to the axis of the tire, so as to be convenient for processing the notch, the utility model discloses the tool withdrawal groove at the notch 34 is provided with one or two and does not limit.

Specifically, the tire in this embodiment includes an inner ring 32 and an outer ring 31, the inner ring 32 and the outer ring 31 are integrally connected together by an intermediate portion 35, the intermediate portion 35 is in a circular ring shape, the inner ring 31 is located on a lower end surface of the intermediate portion, the intermediate portion 35 and the inner ring 32 divide a space inside the outer ring 31 into an inner cavity 37 and an outer cavity 36, and the outer cavity 36 is located below the intermediate portion 35 and outside the inner ring 32. In this embodiment, the notches 34 on the tire are symmetrically arranged on the middle portion 35, and the arc-shaped limiting block 14 is located in the outer cavity 36, is clamped on the lower end surface of the middle portion 35, and is adjacent to the notches 34. In some preferred embodiments, reinforcing ribs are uniformly arranged in the outer cavity 36, and the reinforcing ribs are respectively connected with the middle part 35, the inner ring 32 and the outer ring 31, and the arrangement of the reinforcing ribs ensures that the toy wheel assembly is connected more firmly and has higher safety.

Specifically, as shown in fig. 2, the outer shaft 2 of the present embodiment has a hollow structure, and has a hollow portion, and the inner shaft extends into the hollow portion to be in contact with the hollow portion. Preferably, the hollow portion of the outer shaft includes a first hollow portion 21 and a second hollow portion 22, the first hollow portion 21 and the second hollow portion 22 are each cylindrical, and an inner diameter size of the first hollow portion 21 is larger than an inner diameter size of the second hollow portion 22.

Because the outer shaft is arranged into a hollow structure, not only is the innovation brought to the modeling of the wheel, but also the hollow outer shaft can rotate relative to the tire and the inner shaft, the movable contact surface for the walking of the wheel is increased, and the toy car can run more smoothly.

Specifically, as shown in fig. 3, the inner shaft includes a limiting portion 12 and a supporting portion 11, an outer diameter of the limiting portion 12 is larger than an outer diameter of the supporting portion 11, the outer diameter of the limiting portion 12 matches with an inner diameter of the first hollow portion 21, the outer diameter of the supporting portion 11 matches with an inner diameter of the second hollow portion 22, the first hollow portion 21 and the second hollow portion 22 transition through a chamfer or a fillet, and the limiting portion 12 and the supporting portion 11 also transition through a chamfer and a fillet. The chamfer or fillet transition is beneficial to reducing stress concentration caused by relative movement between the outer wall of the inner shaft and the inner wall of the outer shaft. The utility model discloses an interior axle 1 can be fixed connection with outer shaft 2's connected mode, also can be the contact connection. Preferably, the inner shaft 1 is in contact connection with the outer shaft 2, and the outer shaft 2 is rotatable relative to the inner shaft 1.

Specifically, as shown in fig. 1, the outer shaft 2 is inserted into the tire 3, the outer shaft 2 has a stopping portion 23, the stopping portion 23 protrudes out of the outer circumferential wall of the outer shaft contact section 24 and extends along the circumferential direction of the outer shaft, and the stopping portion 23 abuts against the inner ring-up mounting groove 33 on the tire inner ring 32, so that the outer shaft 2 and the tire 3 can be prevented from loosening, and the assembling firmness of the outer shaft 2 and the tire 3 is enhanced. Further, an installation groove 33 surrounds the upper end of the tire inner ring 32, the depth of the installation groove 33 is slightly larger than the thickness of the stopping portion 23, and the inner diameter of the installation groove 33 is slightly larger than the outer diameter of the stopping portion 23. The utility model discloses an outer axle contact section 24 is located the lower extreme of backstop portion 23, outer axle contact section 24 and the cooperation of the contact of tire inner circle 32, outer axle 2 also can rotate relatively for tire 3.

Specifically, the outer shaft of the present embodiment has a connecting section 25, the connecting section 25 is located at the lower end of the outer shaft contact section 24, the connecting section 25 is recessed in the outer peripheral wall of the outer shaft contact section 24 and extends along the circumferential direction of the outer shaft contact section 24, and the connecting section 25 is used for disposing the wheel assembly on the toy car. As shown in fig. 5, the connecting section 25 is installed in a matching manner with the installation groove 41 of the toy car frame 4, the car frame 4 is clamped on the connecting section 25, the wheel assembly cannot move towards the direction of the car frame 4 due to the interaction between the car frame 4 and the outer shaft contact section 24, and the wheel assembly cannot be separated from the car frame due to the interaction between the car frame 4 and the clamping section 26, so that the wheel assembly is loosened.

Specifically, the clamping section 26 of the present embodiment is located at the end of the connecting section 25, protrudes from the outer peripheral wall of the connecting section 25 and extends along the circumferential direction of the connecting section 25, and the clamping section 26 is used for fixing the wheel assembly on the toy vehicle. The symmetry is provided with two U type breachs 27 on the joint section 26 of this embodiment, and U type breach 27 falls into centrosymmetric two parts with joint section 26 to U type breach 27 extends to linkage segment 25, and joint section 26 is inwards out of shape when U type breach 27's setting is convenient for install the wheel subassembly, makes things convenient for joint section 26 to pass the end of joint at mounting groove 41 behind mounting groove 41. In some embodiments, the ends of the snap segments 26 are chamfered to reduce resistance to installation of the snap segments 26 and to allow for quick installation. In the installation, at first outer axle inserts in the tire, realize the contact installation of outer axle and tire, then in outer epaxial joint section 26 of epaxial and linkage segment 25 insert mounting groove 41, realize joint section 26, the linkage segment 25 is connected with the frame, insert interior axle 1 in the hollow cavity of outer axle 2 at last, it needs to explain, in case interior axle 1 inserts in the hollow cavity of outer axle, interior axle has just occupied the space of outer axle 2 internal deformation, outer epaxial joint section 26 of epaxial unable deformation again breaks away from frame 4 to the lock of wheel subassembly with frame 4 has been realized. The wheel assembly and the toy car frame of the utility model can not be disassembled after being assembled, so that the connection between the wheel assembly and the toy car is firmer and more reliable; on the other hand, the toy car volume after the installation is more than the part volume of detachable toy car among the prior art, avoids the infant to swallow the condition emergence of toy car part, has improved the security of toy car.

It should be noted that the connecting section 25 of the outer shaft 2 is relatively rotatable with respect to the mounting recess 41 of the frame, so as to increase the contact area between the wheels and the frame, and to make the toy vehicle smoother during traveling.

In particular, the wheel assembly of the present invention is made of rigid plastic or a material equivalent to plastic, in some embodiments the tyre 3 can be made of rubber, and the inner shaft 1 and the outer shaft 2 can be made of metal, such as aluminum, steel, etc.

Another embodiment of the present invention relates to a toy vehicle chassis, including one or more toy wheel assemblies of the present invention, with the toy vehicle chassis behind the toy wheel assemblies of the present invention installed, can receive other parts, such as building blocks. The toy wheel assembly of the present invention may be part of a toy playset.

Another embodiment of the present invention is directed to a toy vehicle including any one or more of the toy vehicle wheel assemblies described above. The toy vehicle may be a car, motorcycle, train, toy car, or truck. The toy car of this embodiment includes the wheel subassembly of 4 above-mentioned toy cars, and the wheel subassembly of prior art, the toy car marchs the in-process and hardly reaches 4 wheels and rotates simultaneously, the utility model discloses a wheel subassembly, outer axle all is movable for interior axle, frame, tire to realize that 4 or a plurality of wheels smoothly level and smooth rotation, the toy car operation is more steady.

The terms "upper", "lower", "first" and "second" in the present invention are used for convenience of description, and should not be construed as limiting the actual contents of the present invention.

The present invention has been further described with reference to specific embodiments, but it should be understood that the specific description herein should not be construed as limiting the spirit and scope of the present invention, and that various modifications to the above-described embodiments, which would occur to persons skilled in the art after reading this specification, are within the scope of the present invention.

Claims (9)

1. The wheel assembly of the toy car is characterized by comprising an inner shaft, an outer shaft and a tire, wherein the outer shaft is provided with a hollow part, the inner shaft extends into the hollow part, and the inner shaft and the outer shaft are respectively clamped with the tire;

the tyre is characterized in that a rim is fixedly arranged above the inner shaft, at least two protruding parts are arranged on the lower end face of the rim, and the rim is clamped with the tyre through the protruding parts.

2. The toy vehicle wheel assembly of claim 1, wherein the rim is integrally connected to the inner shaft.

3. The toy vehicle wheel assembly of claim 1, wherein the rim is fixedly connected to the inner shaft in a split configuration.

4. The toy vehicle wheel assembly of claim 1, wherein the protrusion includes an arc-shaped protrusion disposed on a lower end surface of the rim, and a stopper protruding from the arc-shaped protrusion is disposed at an end of the arc-shaped protrusion.

5. The toy vehicle wheel assembly of claim 4, wherein the tire includes a notch that engages the stop block.

6. The toy vehicle wheel assembly of claim 1, wherein the outer axle includes a contact section and a connection section connected in sequence, a stop portion is disposed at one end of the contact section, the stop portion is connected with the inner ring of the tire in a clamping manner, and the connection section is used for arranging the wheel assembly on the toy vehicle.

7. The toy vehicle wheel assembly of claim 6, wherein the outer axle further includes a clamping section at a lower end of the connecting section, the clamping section being in clamping connection with the toy vehicle.

8. The toy vehicle wheel assembly of any one of claims 1-7, wherein the material of the wheel assembly is a rigid plastic.

9. A toy vehicle comprising a wheel assembly of a toy vehicle according to any one of claims 1 to 7.

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