Speed reduction drive mechanism with good safety performance and electric child vehicle

Abstract

The utility model discloses a kind of good safety performance deceleration driving mechanism and children electric vehicle, deceleration driving mechanism includes shell assembly, power drive component being rotatably penetrated on shell assembly, and deceleration transmission component being rotatably penetrated in shell assembly and with power drive component transmission connection;Deceleration transmission component includes deceleration transmission structure;Turbine worm structure, output shaft structure are sequentially with deceleration transmission structure transmission connection, and output shaft structure rotatably penetrates shell assembly.The utility model improves the safety performance of children electric vehicle effectively by the cooperation of power drive component and deceleration transmission component.

Description

Technical Field

[0001] This utility model relates to the field of drive mechanism technology, and in particular to a deceleration drive mechanism with good safety performance and a children's electric vehicle. Background Technology

[0002] Children's electric vehicles mainly refer to a type of toy vehicle that children can drive and sit in, powered by an electric motor. The main types of children's electric vehicles on the market include: electric cars, electric motorcycles, electric construction vehicles, and plush toy electric vehicles. Currently available children's electric vehicles generally use a direct-drive motor.

[0003] For example, CN106240726A discloses a children's electric vehicle, including a frame, a seat mechanism mounted on the frame, a front wheel assembly mounted at the front bottom of the frame, a rear wheel assembly mounted at the rear bottom of the frame, a drive mechanism for driving the children's electric vehicle, and a steering mechanism for controlling the steering of the children's electric vehicle. The steering mechanism includes a direction control lever rotatably connected to the frame, a first linkage mechanism connected to the direction control lever that drives the front wheel assembly to turn simultaneously when the direction control lever is rotated, and a second linkage mechanism connected to the first linkage mechanism or the direction control lever that drives the rear wheel assembly to turn simultaneously when the direction control lever is rotated. Although this technical solution can achieve electric drive operation, the safety performance is generally poor because the children's electric vehicle uses direct motor drive, especially lacking braking function on slopes, which can easily lead to accidents. Therefore, a deceleration drive mechanism and a children's electric vehicle with better safety performance are provided to solve the above problems. Utility Model Content

[0004] One of the objectives of this invention is to provide a deceleration drive mechanism and a children's electric vehicle with good safety performance, so as to solve the problem of the generally poor safety performance of existing children's electric vehicles.

[0005] This utility model relates to a deceleration drive mechanism with good safety performance and a children's electric vehicle, which can be achieved through the following technical solutions:

[0006] This utility model discloses a deceleration drive mechanism with good safety performance, comprising:

[0007] Housing assembly;

[0008] A power drive assembly, whose rotation is through-mounted on the housing assembly;

[0009] A speed reduction transmission assembly, which is rotatably disposed within the housing assembly and is connected to the power drive assembly in a transmission manner;

[0010] The speed reduction transmission assembly includes a speed reduction transmission structure, which is rotatably disposed in the housing assembly and meshes with the power drive assembly; a worm gear structure and an output shaft structure are sequentially connected to the speed reduction transmission structure, and the output shaft structure rotatably passes through the housing assembly.

[0011] In one embodiment, the power drive assembly includes a drive motor and a drive pinion that is driven by the drive motor, the drive pinion being meshed with the reduction gear structure.

[0012] In one embodiment, the power drive assembly further includes a housing and cooling fan blades; the housing is fixedly disposed on the outside of the housing assembly, and the drive motor is disposed in the housing; the cooling fan blades are driven on the drive motor.

[0013] In one embodiment, a plurality of heat dissipation holes are provided through the end of the outer casing near the heat dissipation fan blades.

[0014] In one embodiment, the drive motor includes a motor body and a motor shaft; the motor body is disposed in the outer casing; the motor shaft is driven through the motor body, and the drive pinion and the cooling fan blades are respectively fixedly connected to opposite ends of the motor shaft.

[0015] In one embodiment, the speed reduction transmission structure includes two first bearings disposed opposite to each other in the housing assembly; a rotating shaft rotatably disposed on the two first bearings; and a transmission gear and a driven bevel gear respectively fixedly disposed through the rotating shaft.

[0016] In one embodiment, the worm gear structure includes a worm mechanism and a turbine body that are connected by a transmission; the worm mechanism is connected by a transmission to the driven large bevel gear; and the output shaft structure is connected by a transmission to the turbine body.

[0017] In one embodiment, the output shaft structure includes two second bearings respectively disposed in the housing assembly and an output shaft body rotatably disposed on the two second bearings. The output shaft body is drively connected to the worm gear structure and its opposite ends rotatably pass through the housing assembly.

[0018] In one embodiment, the housing assembly includes a main housing, which is a hollow cavity with one open end; a cover plate fixedly mounted on the open end of the main housing by a screw structure or a snap-fit ​​structure; the main housing is provided with first output shaft holes on opposite sides, and the cover plate is provided with second output shaft holes on opposite sides, the positions of the two second output shaft holes corresponding to the positions of the corresponding first output shaft holes.

[0019] This utility model discloses a safe children's electric vehicle, which includes any of the aforementioned reduction drive mechanisms.

[0020] Compared with the prior art, the advantages of this utility model, which provides a deceleration drive mechanism with good safety performance and a children's electric vehicle, are as follows:

[0021] This utility model discloses a safe deceleration drive mechanism and a drive motor in a children's electric vehicle. The drive motor sequentially drives the output shaft body through a small drive gear, a large transmission gear, a driven large bevel gear, a worm gear mechanism, and a turbine body. This causes the output shaft body to drive the wheels located at both ends of the output shaft body to rotate, thereby realizing the movement function of the children's electric vehicle. When the deceleration drive mechanism is not working, the wheels on the children's electric vehicle body cannot rotate, thus realizing the braking function of the wheels and greatly improving the safety performance of the children's electric vehicle. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of a deceleration drive mechanism with good safety performance according to this utility model;

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of a deceleration drive mechanism with good safety performance according to this utility model;

[0025] Figure 3 This is an exploded structural diagram of a deceleration drive mechanism with good safety performance according to this utility model, including a main housing, a power drive component and a deceleration transmission component;

[0026] Figure 4 yes Figure 3 The diagram shows the structural schematic of the main housing.

[0027] Figure 5 yes Figure 3 The diagram shows the exploded structure of the power drive component.

[0028] Figure 6 yes Figure 3 The diagram shows an exploded view of the speed reduction transmission assembly.

[0029] The diagram indicates the following: 10, reduction drive mechanism; 11, housing assembly; 111, main housing; 1111, first fixed post; 1112, receiving cavity; 1113, bearing cavity; 1114, first output shaft hole; 112, cover plate; 1121, second fixed post; 1122, third fixed post; 1123, through hole; 1124, second output shaft hole; 12, power drive assembly; 121, outer housing; 1211, heat dissipation hole; 122, drive motor; 122 1. Motor body; 1222. Motor shaft; 123. Drive pinion; 124. Cooling fan blades; 13. Reduction transmission assembly; 131. Reduction transmission structure; 1311. First bearing; 1312. Rotating shaft; 1313. Transmission gear; 1314. Driven bevel gear; 132. Worm gear structure; 1321. Worm gear mechanism; 1322. Worm gear body; 133. Output shaft structure; 1331. Second bearing; 1332. Output shaft body. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only one part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] Please see Figures 1-6 As shown, the present invention provides a safe and efficient deceleration drive mechanism 10, comprising a housing assembly 11, a power drive assembly 12, and a deceleration transmission assembly 13. The housing assembly 11 is a hollow cavity and is fixedly mounted on the main body of the child electric vehicle. The power drive assembly 12 is rotatably mounted through the housing assembly 11 and serves as the power drive body. The deceleration transmission assembly 13 is rotatably mounted through the housing assembly 11 and is connected to the power drive assembly 12. The power drive assembly 12 drives the deceleration transmission assembly 13 to rotate, thereby causing the deceleration transmission assembly 13 to drive the wheels on the main body of the child electric vehicle to rotate.

[0033] Please see Figures 1-4As shown, in this embodiment, the housing assembly 11 includes a main housing 111 and a cover plate 112; the main housing 111 is a hollow cavity with one open end; the cover plate 112 is fixedly mounted on the open end of the main housing 111 by a screw structure or a snap-fit ​​structure. Specifically, the main housing 111 is provided with a plurality of first fixing posts 1111, and the cover plate 112 is fixedly connected to the open end of the main housing 111 by the plurality of first fixing posts 1111; the main housing 111 is also provided with a receiving cavity 1112 and a plurality of bearing cavities 1113, and the reduction transmission assembly 13 is respectively disposed in the main housing 111 through the receiving cavity 1112 and the plurality of bearing cavities 1113; the main housing 111 is provided with first output shaft holes 1114 on opposite sides, and the reduction transmission assembly 13 rotatably passes through the main housing 111 through the two first output shaft holes 1114. Specifically, multiple second fixing posts 1121 are respectively provided on the side of the cover plate 112 opposite to the main housing 111. The positions of the multiple second fixing posts 1121 correspond to the positions of the corresponding first fixing posts 1111. The fastening screws are fixedly connected to the corresponding second fixing posts 1121 through the first fixing posts 1111 and the corresponding second fixing posts 1121, thereby fixing the cover plate 112 to the main housing 111. Multiple third fixing posts 1122 are respectively provided on the outer side of the cover plate 112. The power drive assembly 12 is connected to the main housing 111 through multiple third fixing posts 1122. The third fixed column 1122 is fixedly mounted on the cover plate 112; the cover plate 112 is also provided with a through hole 1123, through which the power drive assembly 12 passes through the cover plate 112 and extends into the main housing 111; the cover plate 112 is provided with second output shaft holes 1124 on opposite sides, and the positions of the two second output shaft holes 1124 correspond to the positions of the corresponding first output shaft holes 1114, and the reduction transmission assembly 13 passes through the cover plate 112 through the two second output shaft holes 1124.

[0034] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, in this embodiment, the power drive assembly 12 includes a housing 121, a drive motor 122, a drive pinion 123, and a cooling fan blade 124. The housing 121 is a hollow cavity, which is fixedly mounted on the cover plate 112 by a plurality of third fixing posts 1122. The drive motor 122 is disposed in the housing 121 and extends into the main housing 111 through the through hole 1123, passing through the cover plate 112. The drive pinion 123 is driven and connected to the drive motor 122 and meshes with the reduction gear assembly 13. The drive motor 122 drives the reduction gear assembly 13 to move through the drive pinion 123. The cooling fan blade 124 is driven and connected to the drive motor 122 and disposed in the housing 121, and performs heat dissipation operation on the drive motor 122.

[0035] Please see Figure 5As shown, specifically, a plurality of heat dissipation holes 1211 are provided through the end of the outer casing 121 near the heat dissipation fan blade 124. The rotation of the heat dissipation fan blade 124 dissipates the heat in the outer casing 121 to the outside atmosphere through the plurality of heat dissipation holes 1211. The drive motor 122 includes a motor body 1221 and a motor shaft 1222. The motor body 1221 is disposed in the outer casing 121, and the motor shaft 1222 is driven through the motor body 1221. The drive pinion 123 and the heat dissipation fan blade 124 are respectively fixedly connected to the opposite ends of the motor shaft 1222. The motor body 1221 drives the motor shaft 1222 to rotate, and the drive pinion 123 and the heat dissipation fan blade 124 rotate synchronously with the rotation of the motor shaft 1222.

[0036] Please see Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, in this embodiment, the reduction transmission assembly 13 includes a reduction transmission structure 131, a worm gear structure 132, and an output shaft structure 133. The reduction transmission structure 131 is rotatably disposed in the housing assembly 11 and meshes with the drive pinion 123 for transmission. The worm gear structure 132 is transmissionally connected to the reduction transmission structure 131. The output shaft structure 133 is transmissionally connected to the worm gear structure 132 and rotatably passes through the housing assembly 11. The drive motor 122 drives the output shaft structure 133 to rotate through the drive pinion 123, the reduction transmission structure 131, and the worm gear structure 132 in sequence, thereby driving the wheels on the main body of the child electric vehicle to rotate. When the drive motor 122 is not working, the wheels on the main body of the child electric vehicle cannot rotate, thereby realizing the braking function of the child electric vehicle and greatly improving the safety performance of the child electric vehicle.

[0037] Please see Figure 6As shown, specifically, the reduction transmission structure 131 includes two first bearings 1311, a rotating shaft 1312, a transmission large gear 1313, and a driven large bevel gear 1314; the two first bearings 1311 are arranged opposite to each other in the housing assembly 11; the rotating shaft 1312 is rotatably mounted on the two first bearings 1311; the transmission large gear 1313 and the driven large bevel gear 1314 are respectively fixedly mounted through the rotating shaft 1312, and the transmission large gear 1313 is meshed with the drive small gear 123 for transmission, and the driven large bevel gear 1314 is driven through the shaft 1312. The large bevel gear 1314 is connected to the worm gear structure 132 for transmission. When the drive motor 122 drives the transmission large gear 1313 to rotate through the drive pinion 123, since the rotating shaft 1312 is fixedly connected to the transmission large gear 1313 and the driven large bevel gear 1314 is fixedly connected to the rotating shaft 1312, the rotating shaft 1312 and the driven large bevel gear 1314 rotate synchronously with the rotation of the transmission large gear 1313, thereby causing the driven large bevel gear 1314 to drive the worm gear structure 132 to move.

[0038] Please see Figure 6 As shown, specifically, the worm gear structure 132 includes a worm mechanism 1321 and a turbine body 1322; the worm mechanism 1321 is driven by a driven large bevel gear 1314; the turbine body 1322 is driven by the worm mechanism 1321, and the output shaft structure 133 is driven by the turbine body 1322; the drive motor 122 drives the output shaft structure 133 to move sequentially through the drive pinion 123, the transmission large gear 1313, the driven large bevel gear 1314, the worm mechanism 1321, and the turbine body 1322. Specifically, the output shaft structure 133 includes two second bearings 1331 and an output shaft body 1332, the two second bearings 1331 being respectively disposed in the housing assembly 11; the output shaft body 1332 is rotatably disposed on the two second bearings 1331 and is driven by the worm gear structure 132, and the opposite ends of the output shaft body 1332 rotatably pass through the housing assembly 11.

[0039] This utility model provides a safe children's electric vehicle, which includes the reduction drive mechanism 10 described above.

[0040] It should be noted that the specific working process of the safety-performing reduction drive mechanism and the children's electric vehicle of this utility model is as follows: When the reduction drive mechanism 10 needs to work, the drive motor 122 drives the output shaft body 1332 to move through the drive pinion 123, the transmission gear 1313, the driven bevel gear 1314, the worm gear mechanism 1321, and the turbine body 1322 in sequence. This causes the output shaft body 1332 to drive the wheels set at both ends of it to rotate, thereby realizing the movement function of the children's electric vehicle. When the reduction drive mechanism 10 is not working, the wheels on the children's electric vehicle body cannot rotate, thereby realizing the braking function of the wheels and greatly improving the safety performance of the children's electric vehicle.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A speed reduction drive mechanism with good safety performance, characterized in that, include: Housing assembly; A power drive assembly, whose rotation is through-mounted on the housing assembly; A speed reduction transmission assembly is rotatably disposed within the housing assembly and is connected to the power drive assembly. The speed reduction transmission assembly includes a speed reduction transmission structure, which is rotatably disposed in the housing assembly and meshes with the power drive assembly; a worm gear structure and an output shaft structure are sequentially connected to the speed reduction transmission structure, and the output shaft structure rotatably passes through the housing assembly.

2. The deceleration drive mechanism with good safety performance according to claim 1, characterized in that, The power drive assembly includes a drive motor and a drive pinion that is connected to the drive motor in a transmission manner. The drive pinion is meshed with the reduction transmission structure in a transmission manner.

3. The deceleration drive mechanism with good safety performance according to claim 2, characterized in that, The power drive assembly also includes a housing and cooling fan blades; the housing is fixedly disposed on the outside of the housing assembly, and the drive motor is disposed in the housing; the cooling fan blades are driven on the drive motor.

4. The deceleration drive mechanism with good safety performance according to claim 3, characterized in that, Multiple heat dissipation holes are provided through the end of the outer casing near the heat dissipation fan blades.

5. A speed reduction drive mechanism with good safety performance according to claim 3, characterized in that, The drive motor includes a motor body and a motor shaft; the motor body is disposed in the outer casing; the motor shaft is driven through the motor body, and the drive pinion and the cooling fan blades are respectively fixedly connected to opposite ends of the motor shaft.

6. The deceleration drive mechanism with good safety performance according to claim 5, characterized in that, The speed reduction transmission structure includes two first bearings disposed opposite to each other in the housing assembly; a rotating shaft rotatably disposed on the two first bearings; and a transmission gear and a driven bevel gear respectively fixedly disposed through the rotating shaft.

7. A speed reduction drive mechanism with good safety performance according to claim 6, characterized in that, The worm gear structure includes a worm mechanism and a turbine body that are connected by a transmission; the worm mechanism is connected to the driven large bevel gear; and the output shaft structure is connected to the turbine body by a transmission.

8. The deceleration drive mechanism with good safety performance according to claim 1, characterized in that, The output shaft structure includes two second bearings respectively disposed in the housing assembly and an output shaft body rotatably disposed on the two second bearings. The output shaft body is drively connected to the worm gear structure and its opposite ends rotatably pass through the housing assembly.

9. A speed reduction drive mechanism with good safety performance according to claim 1, characterized in that, The housing assembly includes a main housing, which is a hollow cavity with one open end; a cover plate fixed to the open end of the main housing by a screw structure or a snap-fit ​​structure; the main housing is provided with a first output shaft hole on opposite sides, and the cover plate is provided with a second output shaft hole on opposite sides, the positions of the two second output shaft holes corresponding to the positions of the corresponding first output shaft holes.

10. A child electric vehicle with good safety performance, characterized in that, Includes the speed reduction drive mechanism as described in any one of claims 1-9.

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