High-stability toy car driving device

Abstract

The utility model provides a toy car driving device with high stability, which comprises a driving mechanism, the driving mechanism comprises a driving motor and a transmission group driven by the driving motor to rotate, the transmission group is used for simultaneously driving a front wheel shaft and a rear wheel shaft to rotate, and the front wheel shaft comprises a transmission wheel shaft, a driven shaft, two fixed shafts and two connecting shafts. The transmission wheel shaft comprises a wheel body, a fixed end and a first connecting end which are integrally arranged, the wheel body is in meshed connection with the transmission set, the fixed end is fixedly connected with the driven shaft, the driven shaft is provided with a second connecting end away from the first connecting end, and the second connecting end and the first connecting end are each provided with a first connector. Each fixing shaft is provided with a first shaft rod, a second shaft rod and a second connector, the first shaft rods are rotationally connected to a vehicle body, the second shaft rods are used for being fixedly connected with front wheels, the two ends of each connecting shaft are each provided with a transverse rod perpendicular to a main body of the connecting shaft, and the two transverse rods are inserted into the first connector and the second connector respectively. And the two fixed shafts are circumferentially fixed on the transmission wheel shaft and the driven shaft.

Description

TECHNICAL FIELD

[0001] The utility model relates to a technical field at toy car, especially a kind of high-stability toy car driving device. BACKGROUND

[0002] In some toy car driving devices of prior art, motor output power drives high-speed gear, drives gear on rotating shaft to rotate, then wheel is driven, rotating shaft annular rack gear is driven to drive transmission shaft, front wheel clutch is driven to rotate to drive front wheel, four-wheel drive is formed, for example, the structure disclosed in the bottom of the toy car of the patent CN201419023Y provides a kind of drift remote control toy car.But, the front wheel shaft of the toy car bottom is longer, easy to produce resonance with car body, further in the process of playing, it is easy to cause car body to sway, affect game experience, and longer front wheel shaft also limits the highest speed of front wheel, affects the development of toy car, further affect game experience. UTILITARY MODEL CONTENT

[0003] The utility model aims at at least solving one of the technical problems existing in prior art, and therefore, the utility model provides a kind of high-stability toy car driving device.

[0004] In order to achieve the foregoing purposes, the utility model provides a kind of high-stability toy car driving device, including drive mechanism, the drive mechanism includes drive motor and the transmission group driven to rotate by the drive motor, the transmission group is used to drive front wheel axle and rear wheel axle to rotate simultaneously, the front wheel axle includes a transmission wheel axle, a driven shaft, two fixed shafts and two connecting shafts, the transmission wheel axle includes integral setting wheel body, fixed end and first connecting end, the wheel body is engaged with the transmission group, the fixed end is fixedly connected with the driven shaft, the driven shaft is provided with second connecting end away from the first connecting end, the second connecting end and the first connecting end are all provided with first interface, the first shaft rod, the second shaft rod and the second interface are provided on each fixed shaft, the first shaft rod is rotatably connected on car body, the second shaft rod is used to fixedly connect front wheel, the both ends of each connecting shaft are provided with transverse rod perpendicular to its main body, two transverse rods are respectively inserted in the first interface and the second interface, for fixing two fixed shafts circumferentially on the transmission wheel axle and the driven shaft.

[0005] As preferred scheme, the first connecting end and the second connecting end are rotatably sleeved with a shaft sleeve, the outer portion of the shaft sleeve is outwardly protruded with convex ring, and the convex ring is fixedly connected to the car body.

[0006] As a preferred scheme, the fixed shaft comprises a first shaft body and a second shaft body, the first shaft body is provided with the first shaft rod, the second shaft body is connected in the first shaft body, and one end of the second shaft body extends out of the first shaft body and is provided with the second shaft rod, the second shaft rod is perpendicular to the first shaft rod, and the other end of the second shaft body is provided with a cavity, and the cavity wall is provided with the second interface.

[0007] As a preferred scheme, the steering mechanism comprises a driving set and a dialing plate, the driving set is driven to rotate by an external motor, the dialing plate is rotatably connected with two fixed shafts, and the dialing plate is provided with a rack, and the rack is in meshing connection with the driving set.

[0008] As a preferred scheme, the first shaft body is further provided with a third shaft rod, the third shaft rod is parallel to the first shaft rod, and the third shaft rod is rotatably connected to the dialing plate.

[0009] As a preferred scheme, the driving set comprises a first driving gear and a second driving gear, the first driving gear is a single gear, the second driving gear is a double gear and is in meshing connection with the first driving gear and the rack respectively.

[0010] As a preferred scheme, the gear ratio of the two gears in the second driving gear is 6:17, the first driving gear is in meshing connection with the large gear in the second driving gear, and the gear ratio of the two is 6:17, and the small gear in the second driving gear is in meshing connection with the rack, and the gear ratio of the two is 6:5.

[0011] As a preferred scheme, the transmission set comprises a first gear, a second gear, a third gear, a fourth gear and a fifth gear which are in meshing connection in sequence, and a sixth gear which is coaxially fixed with the fifth gear, the first gear is fixed with the output shaft of the driving motor, the third gear is coaxially fixed with the rear wheel shaft, and the sixth gear is in meshing connection with the wheel body.

[0012] As a preferred solution, the first gear, the fifth gear and the sixth gear are all single gears, the second gear, the third gear and the fourth gear are all double gears, the gear ratio of the two gears in the second gear is 5:16, the gear ratio of the two gears in the third gear is 19:29, the gear ratio of the two gears in the fourth gear is 19:20, the first gear meshes with the large gear of the second gear and the gear ratio of the two gears is 3:8, the small gear of the second gear meshes with the large gear of the third gear and the gear ratio of the two gears is 10:29, the small gear of the third gear meshes with the small gear of the fourth gear and the gear ratio of the two gears is 1:1, the large gear of the fourth gear meshes with the fifth gear and the gear ratio of the two gears is 2:1, the sixth gear has the same gear number as the fifth gear, and the gear ratio of the sixth gear and the wheel body is 1:2.

[0013] As a preferred solution, the driving mechanism further comprises a housing, the driving motor and part of the transmission group are fixedly installed in the housing, and the housing is outwardly and rotatably provided with the rear wheel shafts at opposite sides.

[0014] Therefore, according to the technical means of the utility model, the utility model can obtain the effects briefly described as follows: the driving device for the toy car with high stability provided by the utility model divides the front wheel shaft into a transmission shaft, a driven shaft, a connecting shaft and a fixed shaft, the driven shaft is fixed with the transmission shaft, the fixed shaft is circumferentially fixed on the transmission shaft and the driven shaft through the connecting shaft, and when the transmission shaft is driven to rotate by the transmission group, the fixed shaft can be simultaneously driven to rotate in the same direction by the driven shaft and the connecting shaft to drive the front wheels to rotate. Through the above arrangement, the natural frequency of each segment of the front wheel shaft can be improved, thereby avoiding resonance with the vehicle body, reducing the shaking of the vehicle body and improving the stability and the gaming experience. At the same time, the bending and vibration of the front wheel shaft can be reduced, thereby improving the upper limit of the rotation speed of the front wheel shaft to ensure that the front wheels can achieve a greater rotation speed and further improve the gaming experience. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The figure is a structural schematic view of a preferred embodiment of the utility model.

[0016] Figure 2 The figure is a structural schematic view of a preferred embodiment of the utility model. Figure 1 The figure is an exploded structural schematic view of the driving device for the toy car.

[0017] Figure 3 The figure is a structural schematic view of a preferred embodiment of the utility model. Figure 1 The figure is a structural schematic view of the driving mechanism and the steering mechanism when working.

[0018] Figure 4 The figure is a structural schematic view of a preferred embodiment of the utility model. Figure 3 The figure is a structural schematic view of the front wheel shaft and the actuating plate.

[0019] Figure 5 For Figure 1 Structure sectional view of front wheel shaft.

[0020] In the figure: 1: driving mechanism; 11: shell; 12: driving motor; 13: transmission group; 131: first gear; 132: second gear; 133: third gear; 134: fourth gear; 135: fifth gear; 136: sixth gear; 2: front wheel shaft; 21: transmission axle; 211: wheel body; 212: fixed end; 213: first connecting end; 22: driven shaft; 221: positioning end; 222: second connecting end; 20: first interface; 23: fixed shaft; 231: first shaft body; 232: second shaft body; 233: first shaft rod; 234: second shaft rod; 235: second interface; 236: third shaft rod; 24: connecting shaft; 241: main body; 242: cross rod; 25: shaft sleeve; 251: convex ring; 3: rear wheel shaft; 4: steering mechanism; 41: driving group; 411: first driving tooth; 412: second driving tooth; 42: toggle plate; 421: rack. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. It can be understood that the drawings are provided for reference and illustration only, and are not intended to limit the present application. The connections shown in the drawings are only for clear description, and do not limit the connection mode.

[0022] It should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like are used herein for the purpose of description based on the illustrations of the utility model shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and thus cannot be understood as indicating that the devices or elements referred to must have a special orientation or positional relationship, and therefore cannot be understood as limiting the utility model. It should be noted that when one piece is considered to be "connected" to another piece, it can be directly connected to the other piece or a middle piece can be present at the same time. It should be understood that the terms "first", "second", "third", "fourth" and the like are only for the convenience of describing the technical solutions of the utility model, and thus cannot be understood as indicating that the devices or elements referred to must have a special order, and therefore cannot be understood as limiting the utility model. Unless otherwise defined, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing specific embodiments, and are not intended to limit the utility model.

[0023] Please refer to Figures 1-5 The embodiment provides a high-stability toy car driving device, which comprises a driving mechanism 1, a front wheel shaft 2 and a rear wheel shaft 3 driven by the driving mechanism 1 and rotating simultaneously, and a steering mechanism 4. The steering mechanism 4 is rotationally connected with the front wheel shaft 2 and is used for driving the front wheel shaft 2 to rotate partially to realize the steering function of the toy car. In other embodiments, the toy car driving device can not be provided with the steering mechanism 4.

[0024] In the embodiment, the driving mechanism 1 comprises a shell 11 fixedly installed in the car body of the toy car, a driving motor 12 fixedly installed in the shell 11, and a transmission group 13 driven to rotate by the driving motor 12, wherein the transmission group 13 is used for driving the front wheel shaft 2 and the rear wheel shaft 3 to rotate simultaneously. In other embodiments, the driving mechanism 1 can not be provided with the shell 11, and at this time, the driving mechanism 1 can be directly installed in the car body.

[0025] In this embodiment, the transmission set 13 comprises a first gear 131, a second gear 132, a third gear 133, a fourth gear 134 and a fifth gear 135 connected in sequence, and a sixth gear 136 coaxially fixed with the fifth gear 135. The first gear 131 is fixed with the output shaft of the driving motor 12, the third gear 133 is coaxially fixed with the rear wheel shaft 3, and the sixth gear 136 is meshed with the wheel body of the front wheel shaft 2. It can be understood that the first gear 131, the fifth gear 135 and the sixth gear 136 are all single gears, and the second gear 132, the third gear 133 and the fourth gear 134 are all double gears. The tooth number ratio of the two gears in the second gear 132 is 5:16, the tooth number ratio of the two gears in the third gear 133 is 19:29, the tooth number ratio of the two gears in the fourth gear 134 is 19:20, the tooth number ratio of the first gear 131 and the large gear of the second gear 132 is 3:8, the tooth number ratio of the small gear of the second gear 132 and the large gear of the third gear 133 is 10:29, the tooth number ratio of the small gear of the third gear 133 and the small gear of the fourth gear 134 is 1:1, the tooth number ratio of the large gear of the fourth gear 134 and the fifth gear 135 is 2:1, the tooth number of the sixth gear 136 is the same as that of the fifth gear 135, and the tooth number ratio of the sixth gear 136 and the wheel body of the front wheel shaft 2 is 1:2. Specifically, the number of teeth of the first gear 131 is set to 12, the number of teeth of the large gear of the second gear 132 is set to 32 and the number of teeth of the small gear thereof is set to 10, the number of teeth of the large gear of the third gear 133 is set to 29 and the number of teeth of the small gear thereof is set to 19, the number of teeth of the large gear of the fourth gear 134 is set to 20 and the number of teeth of the small gear thereof is set to 19, and the number of teeth of the fifth gear 135 and the sixth gear 136 is set to 10.

[0026] It should be noted that the tooth number ratio of each meshing gear pair in the transmission set 13 can optimize the torque output, reduce the torque loss of the front wheel shaft 2 and the rear wheel shaft 3, improve the transmission efficiency and enhance the load capacity, so as to realize stable transmission of the transmission set 13. Since the front-rear wheel driving force distribution ratio tends to be that of the four-wheel drive car of the rear-wheel drive car, the car can accelerate sharply and turn at a low speed, and also can realize drifting, so that in the toy car driving device provided in this embodiment, the front wheels and the rear wheels are driven simultaneously by the front wheel shaft 2 and the rear wheel shaft 3, so that the drifting action can be realized. In other embodiments, the transmission set 13 can be adjusted to other numbers of meshing gear chains, such as three, four, five or more than seven gears. The specific tooth numbers of each meshing gear pair in the transmission set 13 can be increased or decreased in equal proportion according to the above-mentioned tooth number ratio setting.

[0027] The front wheel shaft 2 comprises a transmission axle 21, a driven axle 22, two fixed shafts 23 and two connecting shafts 24. The transmission axle 21 comprises a wheel body 211, a fixed end 212 and a first connecting end 213 which are integrally arranged, the wheel body 211 is in meshing connection with the sixth gear 316, the fixed end 212 is a protruding polygonal body which is used for fixed connection with the driven axle 22. The driven axle 22 is provided with a positioning end 221 and a second connecting end 222 on opposite sides, the positioning end 221 is a column which can be inserted into the fixed end 212, and the second connecting end 222 is arranged away from the first connecting end 213. It can be understood that the first interface 20 is linearly arranged on the first connecting end 213 and the second connecting end 222, so as to facilitate quick connection with the connecting shaft 24.

[0028] It should be noted that each fixed shaft 23 comprises a first shaft body 231 and a second shaft body 232, the first shaft body 231 is provided with a first shaft rod 233 which is used for rotating connection of the fixed shaft 23 with the body of the toy car. The second shaft body 232 is connected in the first shaft body 231, and one end of the second shaft body 232 extends out of the first shaft body 231 and is provided with a second shaft rod 234, the second shaft rod 234 is perpendicular to the first shaft rod 233, and the second shaft rod 234 is used for fixed connection of the front wheel of the toy car. The other end of the second shaft body 232 is provided with a cavity, and the cavity wall of the cavity is provided with a second interface 235 which is also a linear through hole to facilitate quick connection with the connecting shaft 24. In the embodiment, the first shaft rod 231 is further provided with a third shaft rod 236 which is parallel to the first shaft rod 231, and the third shaft rod 236 is rotatingly connected to the actuating plate of the steering mechanism 4, and is used for rotating a certain angle when the actuating plate moves left and right, thereby driving the front wheel to realize the steering function. In other embodiments, the first shaft rod 231 can not be provided with the third shaft rod 236, and a through hole for movably connecting the actuating plate can be arranged on the first shaft rod 231.

[0029] The two ends of each connecting shaft 24 are provided with transverse rods 242 which are perpendicular to the main body 241, and the two transverse rods 242 are respectively inserted into the first interface 20 and the second interface 235, and are used for circumferentially fixing the two fixed shafts 23 on the transmission axle 21 and the driven axle 22.

[0030] It should be noted that the front wheel shaft 2 provided in the embodiment is segmented into five shorter segments from a longer whole, which can not only improve the natural frequency of each segment of the front wheel shaft 2, thereby avoiding resonance with the body, reducing body shaking, improving stability and game experience. At the same time, it can also reduce the bending and vibration of the front wheel shaft 2, thereby improving the upper limit of the rotation speed of the front wheel shaft 2, to ensure that the front wheel can realize a larger rotation speed, and further improve the game experience.

[0031] In the embodiment, the first connecting end 213 and the second connecting end 222 are rotatably sleeved with a shaft sleeve 25, and the outer ring of the shaft sleeve 25 is outwardly protruded with a protruding ring 251 which is fixedly connected to the body of the toy car, so as to improve the rotation stability of the front wheel shaft 2 in the body. In other embodiments, the first connecting end 213 and the second connecting end 222 can not be provided with the shaft sleeve 25, and the first connecting end 213 and the second connecting end 222 can be directly rotatably connected to the inner wall of the body.

[0032] The rear wheel shaft 3 is rotatably extended on the opposite sides of the shell 11, and is used for fixedly connecting the rear wheels of the toy car.

[0033] The steering mechanism 4 comprises a driving group 41 and a toggle plate 42, the driving group 41 is rotatably driven by an external motor, the third shaft 236 of the two fixed shafts 23 is rotatably connected to the toggle plate 42, and the toggle plate 42 is provided with a rack 421 which is in meshing connection with the driving group 41, so as to move with the driving group 41 when the driving group 41 rotates, and enable the toggle plate 42 to move to drive the fixed shaft 23 to rotate a certain angle on the connecting shaft 24.

[0034] In the embodiment, the driving group 41 comprises a first driving gear 411 and a second driving gear 412, the first driving gear 411 is a single gear, and the second driving gear 412 is a double gear which is in meshing connection with the first driving gear 411 and the rack 421 respectively. It can be understood that the tooth number ratio of the two gears in the second driving gear 412 is 6:17, the first driving gear 411 is in meshing connection with the large gear of the second driving gear 412, and the tooth number ratio of the two is 6:17, and the small gear of the second driving gear 412 is in meshing connection with the rack 421, and the tooth number ratio of the two is 6:5. Specifically, the tooth number of the first driving gear 411 is set to 12, the tooth number of the large gear of the second driving gear 412 is set to 34, and the tooth number of the small gear thereof is set to 12, and the tooth number of the rack 421 is set to 10.

[0035] It should be noted that the tooth number ratio of each meshing gear pair in the driving group 41 can reduce the driving effect, and improve the movement stability of the toggle plate 42. In other embodiments, the driving group 41 can be adjusted to other numbers of meshing gear chains, such as three or more than four gears. The specific tooth number of each meshing gear pair in the driving group 41 can be increased or decreased in equal proportion according to the above-mentioned tooth number ratio setting.

[0036] For the sake of clarity, some features described in separate embodiments of the present application can be combined for use in a single embodiment. Moreover, various features of the present application described in a single embodiment can also be used separately or in any suitable form in sub-combinations.

Claims

1. A high-stability toy vehicle drive device, comprising a drive mechanism, the drive mechanism comprising a drive motor and a transmission set driven to rotate by the drive motor, the transmission set being used to simultaneously drive a front wheel shaft and a rear wheel shaft to rotate, characterized in that, The front wheel shaft comprises a driving wheel shaft, a driven shaft, two fixed shafts and two connecting shafts, the driving wheel shaft comprises a wheel body, a fixed end and a first connecting end arranged integrally, the wheel body is engagedly connected with the driving set, the fixed end is fixedly connected with the driven shaft, the driven shaft is provided with a second connecting end away from the first connecting end, the second connecting end and the first connecting end are each provided with a first interface, each of the fixed shafts is provided with a first shaft rod, a second shaft rod and a second interface, the first shaft rod is rotationally connected to the vehicle body, the second shaft rod is used for fixedly connecting a front wheel, the two ends of each of the connecting shafts are provided with transverse rods perpendicular to the main bodies of the connecting shafts, the two transverse rods are respectively inserted into the first interface and the second interface, and the two fixed shafts are fixedly arranged on the driving wheel shaft and the driven shaft in the circumferential direction.

2. The high stability toy vehicle drive of claim 1, wherein, The first connecting end and the second connecting end are each rotationally sleeved with a shaft sleeve, the outer part of the shaft sleeve is outwardly protruded with a convex ring, and the convex ring is fixedly connected to the vehicle body.

3. The high stability toy vehicle drive of claim 1, wherein, The fixed shaft comprises a first shaft body and a second shaft body, the first shaft body is provided with the first shaft rod, the second shaft body is connected into the first shaft body, one end of the second shaft body outwardly extends from the first shaft body and is provided with the second shaft rod, the second shaft rod is perpendicular to the first shaft rod, and the other end of the second shaft body is provided with a cavity, the cavity wall of the cavity is provided with the second interface.

4. The high stability toy vehicle drive of claim 3, wherein, The steering mechanism comprises a driving set and a dialing plate, the driving set is driven to rotate by an external motor, the dialing plate is rotationally connected with two fixed shafts, and the dialing plate is provided with a rack, the rack is engagedly connected with the driving set.

5. The high stability toy vehicle drive of claim 4, wherein, The first shaft body is further provided with a third shaft rod, the third shaft rod is parallel to the first shaft rod, and the third shaft rod is rotationally connected to the dialing plate.

6. The high stability toy vehicle drive of claim 4, wherein, The driving set comprises a first driving tooth and a second driving tooth, the first driving tooth is a single gear, the second driving tooth is a double gear and is engagedly connected with the first driving tooth and the rack respectively.

7. The high stability toy vehicle drive of claim 6, wherein, The gear number ratio of the two gears in the second driving tooth is 6:17, the first driving tooth is engaged with the large gear in the second driving tooth, and the gear number ratio of the two is 6:17, and the small gear in the second driving tooth is engaged with the rack, and the gear number ratio of the two is 6:

5.

8. The high stability toy vehicle drive of claim 1, wherein, The driving set comprises a first gear, a second gear, a third gear, a fourth gear and a fifth gear which are sequentially engagedly connected, and a sixth gear which is coaxially fixed with the fifth gear, the first gear is fixed with the output shaft of the driving motor, the third gear is coaxially fixed with the rear wheel shaft, and the sixth gear is engagedly connected with the wheel body.

9. The high stability toy vehicle drive of claim 8, wherein, The first gear, the fifth gear and the sixth gear are single-gear gears, the second gear, the third gear and the fourth gear are double-gear gears, the gear ratio of the two gears in the second gear is 5:16, the gear ratio of the two gears in the third gear is 19:29, the gear ratio of the two gears in the fourth gear is 19:20, the first gear meshes with the large gear of the second gear and the gear ratio thereof is 3:8, the small gear of the second gear meshes with the large gear of the third gear and the gear ratio thereof is 10:29, the small gear of the third gear meshes with the small gear of the fourth gear and the gear ratio thereof is 1:1, the large gear of the fourth gear meshes with the fifth gear and the gear ratio thereof is 2:1, the sixth gear has the same gear number as the fifth gear, and the gear ratio of the sixth gear and the wheel body is 1:

2.

10. The high stability toy vehicle drive of claim 9, wherein, The driving mechanism further comprises a shell, the driving motor and part of the transmission group are fixedly installed in the shell, and the rear wheel shaft is outwardly and rotatably extended from opposite sides of the shell.

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