Four-wheel-drive electric baby carriage for children

Abstract

The utility model relates to a four-wheel-drive electric baby carriage for children. The four-wheel-drive electric baby carriage comprises a baby carriage frame, a front wheel assembly, a first rear wheel assembly, a second rear wheel assembly, a driving mechanism and a steering mechanism used for controlling steering of the electric baby carriage. The front wheel assembly, the first rear wheel assembly and the second rear wheel assembly are arranged at the bottom of the baby carriage frame; the first rear wheel assembly is located between the front wheel assembly and the second rear wheel assembly. The six-wheeled vehicle is ingenious in design, the four driving wheels, the two front wheels and the six wheels increase the road holding force of the baby carriage, more tires means larger contact area, the road holding force of the baby carriage on various terrains can be improved, and the controllability and trafficability of the six-wheeled vehicle are higher especially on wet and slippery or uneven road surfaces.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of baby carriage, especially relates to a four-wheel drive electric baby carriage for children. BACKGROUND

[0002] The electric car for children mainly refers to a kind of toy car driven by motor, which can be driven and sat by children, such as electric car, electric motorcycle and electric engineering car, and these simulation children toys are very popular among children and parents, so that they can imitate adults to drive various vehicles, fully exercise the control ability and thinking ability of children and open up the vision of children.

[0003] At present, common electric baby car for children is two-wheel drive, divided into front drive and rear drive;When one of the drive wheels of two-wheel drive car slips, the other drive wheel will also lose power, which brings inconvenience to use and brings safety hazard, and moreover, most of the existing electric baby car for children is four-wheel vehicle, and the driving force is limited, the play performance is general, and the experience is poor.

[0004] In view of the above problems, it is necessary to improve it. INVENTION CONTENTS

[0005] The utility model aims at providing a four-wheel drive electric baby car for children with simple structure, reasonable design, sufficient driving force and high stability.

[0006] In order to achieve the above purpose, the technical scheme adopted by the utility model patent is:

[0007] A four-wheel drive electric baby car for children, comprising a baby carriage frame, a front wheel assembly, a first rear wheel assembly, a second rear wheel assembly, a driving mechanism and a steering mechanism for controlling the steering of electric baby car;The front wheel assembly, the first rear wheel assembly and the second rear wheel assembly are arranged at the bottom of the baby carriage frame;The first rear wheel assembly is located between the front wheel assembly and the second rear wheel assembly;The front wheel assembly comprises left front wheel and right front wheel arranged respectively at the left and right sides of the front part of the baby carriage frame;The first rear wheel assembly comprises first left rear wheel and first right rear wheel arranged respectively at the left and right sides of the rear middle part of the baby carriage frame, and the first left rear wheel and the first right rear wheel are connected by a first rotating shaft;The second rear wheel assembly comprises second left rear wheel and second right rear wheel arranged respectively at the left and right sides of the rear part of the baby carriage frame;Second left rear wheel and second right rear wheel are connected by a second rotating shaft;The steering mechanism is connected with the front wheel assembly.

[0008] As a preferred scheme of the utility model, the driving mechanism comprises first power device and second power device, the first power device is used to drive the first rear wheel assembly to rotate, and the second power device is used to drive the second rear wheel assembly to rotate.

[0009] As a preferred scheme of the utility model, the first power device is provided with two, is assembled in two ends of the first rotating shaft respectively, is used for driving first left rear wheel and first right rear wheel movement, the second power device is provided with two, is assembled in two ends of the second rotating shaft respectively, is used for driving second left rear wheel and second right rear wheel movement.

[0010] As a preferred scheme of the utility model, the first power device includes first drive motor and first power reducer, first drive motor is assembled on first power reducer, and first rotating shaft passes through first power reducer, and the second power device includes second drive motor and second power reducer, and second drive motor is assembled on second power reducer, and second rotating shaft passes through second power reducer.

[0011] As a preferred scheme of the utility model, the bottom of the child's car frame is formed with a first recess, and the first rotating shaft is assembled in the first recess, and at least one first positioning seat for limiting the first rotating shaft in the first recess is assembled on the first recess.

[0012] As a preferred scheme of the utility model, the bottom of the child's car frame is formed with a second recess, and the second rotating shaft is assembled in the second recess, and at least one second positioning seat for limiting the second rotating shaft in the second recess is assembled on the second recess.

[0013] As a preferred scheme of the utility model, the second positioning seat and the first positioning seat are provided with two, and the second positioning seat and the first positioning seat are correspondingly arranged.

[0014] As a preferred scheme of the utility model, the steering mechanism includes a steering rod, a steering motor for driving the steering rod to rotate, the top end of the steering rod is connected with the child's car direction handle, the bottom of the steering rod is connected with a steering assembly, and the two ends of the steering assembly are connected with the left front wheel and the right front wheel respectively.

[0015] As a preferred scheme of the utility model, the steering assembly includes a steering positioning frame, an axle pivotally connected to the two ends of the steering positioning frame, a swing rod perpendicularly fixed to the axle, and a linkage rod hingedly connected with the two swing rods respectively, the left front wheel and the right front wheel are pivotally connected with the axle, and the end of the steering rod is pivotally connected with the midpoint of the linkage rod.

[0016] As a preferred scheme of the utility model, the linkage rod is provided with two rotation limiting abutting pieces, and the two rotation limiting abutting pieces are respectively in abutting cooperation with the two swing rods.

[0017] The utility model has the advantages of:

[0018] 1. This utility model has a simple structure. The first rear wheel assembly and the second rear wheel assembly have a total of four drive wheels. The four drive wheels provide strong driving force and road adaptability, especially on slippery roads such as those in winter rain and snow, resulting in better vehicle stability and reducing the risk of skidding and loss of control. This improves safety. Furthermore, the multiple drive wheels enhance the vehicle's traction and load-bearing capacity, improving playability for children and enhancing their experience.

[0019] 2. This utility model has a clever design with four drive wheels and two front wheels, and six wheels in total, which increases the grip of the children's vehicle: more tires mean a larger contact area, which helps to improve the vehicle's grip on various terrains, especially on wet or uneven roads, the six-wheeled vehicle has better handling and passability. Attached Figure Description

[0020] Figure 1 This is a side view of a four-wheel drive electric children's vehicle according to an embodiment of the present invention;

[0021] Figure 2 This is a bottom view of a four-wheel drive electric children's vehicle according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the steering mechanism according to an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the stroller frame according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram showing the connection between the first and second rear wheel assemblies and the stroller frame in an embodiment of the present invention;

[0025] Explanation of reference numerals in the attached drawings: 1. Child stroller frame; 2. Front wheel assembly; 3. First rear wheel assembly; 4. Second rear wheel assembly; 5. Steering mechanism; 6. First power unit; 7. Second power unit; 8. Steering assembly; 21. Left front wheel; 22. Right front wheel; 31. First left rear wheel; 32. First right rear wheel; 33. First pivot; 34. First positioning seat; 35. Second left rear wheel; 41. Second right rear wheel; 42. Second pivot; 43. Second pivot; 44. Second positioning seat; 45. Steering rod; 51. Steering motor; 52. Child stroller handlebar; 53. First drive motor; 61. First power reducer; 62. Second drive motor; 71. Second power reducer; 72. Steering positioning frame; 80. Wheel axle; 81. Swing rod; 82. Linkage rod; 83. Rotation limiter; 84. Detailed Implementation

[0026] The technical solutions of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be mechanical connection, or electrical connection, it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Embodiments

[0028] As shown in Figure 1 , Figure 2 A four-wheel drive electric child stroller, comprising a stroller frame 1, a front wheel assembly 2, a first rear wheel assembly 3, a second rear wheel assembly 4, a driving mechanism and a steering mechanism 5 for controlling the steering of the electric child stroller; the front wheel assembly 2, the first rear wheel assembly 3 and the second rear wheel assembly 4 are arranged at the bottom of the stroller frame 1; the first rear wheel assembly 3 is located between the front wheel assembly 2 and the second rear wheel assembly 4; the front wheel assembly 2 comprises left and right front wheels 21 and 22 arranged at the left and right sides of the front part of the stroller frame 1 respectively; the first rear wheel assembly 3 comprises first left and right rear wheels 31 and 32 arranged at the left and right sides of the rear middle part of the stroller frame 1 respectively, and the first left and right rear wheels 31 and 32 are connected by a first rotating shaft 33; the second rear wheel assembly 4 comprises second left and right rear wheels 41 and 42 arranged at the left and right sides of the rear part of the stroller frame 1 respectively; the second left and right rear wheels 41 and 42 are connected by a second rotating shaft 43.

[0029] The front wheel assembly 2 is used to bear the front end of the electric child stroller and plays a supporting role, the left and right front wheels 21 and 22 are not used as driving wheels, the first and second rear wheel assemblies 3 and 4 are used as driving wheels, and the front wheels are driven to rotate.

[0030] Among them, the first rear wheel assembly 3 and the second rear wheel assembly 4 have a total of 4 driving wheels, 4 driving wheels are arranged, the driving force and the road surface adaptability are strong, especially in winter and snow and other slippery road surface, the vehicle stability is better, and it is not easy to slip out of control. Improve the safety, in addition, because there are multiple driving wheels, the driving form can also improve the traction and carrying capacity of the vehicle; improve the play performance of children and enhance the experience.

[0031] The four drive wheels and two front wheels increase the grip of the stroller: more tires mean more contact area, which helps improve the vehicle's grip on various terrains, especially on wet or uneven surfaces. The six-wheel vehicle has better handling and passability.

[0032] Moreover, the front and rear differential design of the six-wheel vehicle allows each wheel to obtain different speeds and torques as needed. This design is particularly important when the vehicle is turning, as it can ensure that the inner and outer wheels rotate at different speeds, reducing tire wear and improving vehicle handling.

[0033] As Figure 3 shown, the steering mechanism 5 is connected to the front wheel assembly 2 for driving the left front wheel 21 and the right front wheel 22 to turn; specifically, the steering mechanism 5 includes a steering rod 51 and a steering motor 52 for driving the steering rod 51 to rotate; the top end of the steering rod 51 is connected to a stroller direction handle 53; the bottom of the steering rod 51 is connected to a steering assembly 8, and the two ends of the steering assembly 8 are connected to the left front wheel 21 and the right front wheel 22 respectively; the direction handle 53 is in transmission connection with the steering assembly 8, mainly for driving the wheels to turn when the direction handle 53 is turned, saving manpower.

[0034] The positioning frame 80 is assembled on the stroller frame 1, and the steering motor 52 is installed on the steering rod 51, so as to realize the specific installation of the steering control system on the stroller; the steering control system is installed on the stroller, so as to realize the quick conversion of the manual steering control mode and the electric steering control mode of the stroller, thereby speeding up the intervention of the parents to take over the driving direction of the stroller, effectively reducing the safety hazards caused by the misoperation of the children, and also reducing the force required to be exerted on the steering wheel when the children control the steering, thereby improving the use experience of the children

[0035] As Figure 3 shown, the steering assembly 8 includes a steering positioning frame 80, wheel shafts 81 rotatably connected to the two ends of the steering positioning frame 80 respectively, swing rods 82 vertically fixed to the wheel shafts 81, and linkage rods 83 hingedly connected to the two swing rods 82 respectively; the left front wheel 21 and the right front wheel 22 are rotatably connected to the wheel shafts 81 respectively, and the end of the steering rod 51 is rotatably connected to the midpoint of the linkage rod 83.

[0036] The linkage rod 83 is provided with two rotation limiting abutments 84, and the two rotation limiting abutments 84 are in abutting cooperation with the two swing rods 82 respectively; by adopting the above technical scheme, when the two steering front wheels are rotated to a certain angle, the swing rods 82 abut against the rotation limiting abutments 84, so as to limit the continuous swinging of the swing rods 82, thereby avoiding the problem of excessive rotation of the steering front wheels.

[0037] As Figure 2 and Figure 4As shown, the driving mechanism includes a first power device 6 and a second power device 7, the first power device 6 is used to drive the first rear wheel assembly 3 to rotate, and the second power device 7 is used to drive the second rear wheel assembly 4 to rotate; The first power device 6 is provided with two, which are respectively assembled at both ends of the first rotating shaft 33, and is used to drive the first left rear wheel 31 and the first right rear wheel 32 to move; The second power device 7 is provided with two, which are respectively assembled at both ends of the second rotating shaft 43, and is used to drive the second left rear wheel 41 and the second right rear wheel 42 to move.

[0038] As shown in the figure, Figure 5 The first power device 6 includes a first drive motor 61 and a first power reducer 62; The first drive motor 61 is assembled on the first power reducer 62, and the first rotating shaft 33 penetrates the first power reducer 62; The second power device 7 includes a second drive motor 71 and a second power reducer 72; The second drive motor 71 is assembled on the second power reducer 72, and the second rotating shaft 43 penetrates the second power reducer 72.

[0039] As shown in the figure, Figure 5 The bottom of the child car frame 1 is formed with a first recess 34, the first rotating shaft 33 is assembled in the first recess 34, and at least one first positioning seat 35 is assembled on the first recess 34 for limiting the first rotating shaft 33 in the first recess 34; The first recess 34 and the first positioning seat 35 are beneficial to the rapid positioning and installation of the first rotating shaft 33 at the bottom of the child car frame 1, and are beneficial to improving the stability of the first power device 6 of the electric child car.

[0040] The bottom of the child car frame 1 is formed with a second recess 44, the second rotating shaft 43 is assembled in the second recess 44, and at least one second positioning seat 45 is assembled on the second recess 44 for limiting the second rotating shaft 43 in the second recess 44; The second recess 44 and the second positioning seat 45 are beneficial to the rapid positioning and installation of the second rotating shaft 43 at the bottom of the child car frame 1, and are beneficial to improving the stability of the second power device 7 of the electric child car.

[0041] In order to further improve the stability and safety of the first power device 6 and the second power device 7, the second positioning seat 45 and the first positioning seat 35 are both provided with two, and the second positioning seat 45 and the first positioning seat 35 are correspondingly arranged.

[0042] The front wheel assembly 2, the first rear wheel assembly 3 and the second rear wheel assembly 4 provided in the embodiment are provided with six wheels, compared with the traditional four wheels, increasing the number of tires can disperse the weight of the vehicle, reduce the load of a single tire, thereby improving the stability and durability of the vehicle. In addition, the size of the front wheel assembly 2 can be slightly small, and the design of the small size front wheel assembly 2 helps to reduce air resistance, so that the vehicle is more stable when driving at high speed.

[0043] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein and with the appended claims.

[0044] Although the terms stroller frame 1, front wheel assembly 2, first rear wheel assembly 3, second rear wheel assembly 4, steering mechanism 5, first power device 6, second power device 7, steering assembly 8, left front wheel 21, right front wheel 22, first left rear wheel 31, first right rear wheel 32, first rotating shaft 33, first recess 34, first positioning seat 35, second left rear wheel 41, second right rear wheel 42, second rotating shaft 43, second recess 44, second positioning seat 45, steering rod 51, steering motor 52, stroller direction handle 53, first driving motor 61, first power reducer 62, second driving motor 71, second power reducer 72, steering positioning frame 80, wheel shaft 81, swing rod 82, linkage rod 83, rotation limiting component 84, etc. are used more frequently in the drawings, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the application; any additional limitation is contrary to the spirit of the application.

Claims

1. A four-wheel drive electrically powered child stroller, characterized in that: The electrically-driven baby carriage comprises a carriage frame (1), a front wheel assembly (2), a first rear wheel assembly (3), a second rear wheel assembly (4), a driving mechanism and a steering mechanism (5) for controlling the steering of the electrically-driven baby carriage; the front wheel assembly (2), the first rear wheel assembly (3) and the second rear wheel assembly (4) are arranged at the bottom of the carriage frame (1); the first rear wheel assembly (3) is located between the front wheel assembly (2) and the second rear wheel assembly (4); the front wheel assembly (2) comprises left and right front wheels (21 and 22) arranged at the left and right sides of the front part of the carriage frame (1) respectively; the first rear wheel assembly (3) comprises first left and right rear wheels (31 and 32) arranged at the left and right sides of the middle part of the rear part of the carriage frame (1) respectively, and the first left and right rear wheels (31 and 32) are connected by a first rotating shaft (33); the second rear wheel assembly (4) comprises second left and right rear wheels (41 and 42) arranged at the left and right sides of the rear part of the carriage frame (1) respectively; the second left and right rear wheels (41 and 42) are connected by a second rotating shaft (43); the steering mechanism (5) is connected with the front wheel assembly (2).

2. The four-wheel drive electrically powered child stroller of claim 1, wherein: The driving mechanism comprises first and second power devices (6 and 7), the first power device (6) is used for driving the first rear wheel assembly (3) to rotate, and the second power device (7) is used for driving the second rear wheel assembly (4) to rotate.

3. The four-wheel drive electrically powered child stroller of claim 2, wherein: The first power device (6) is provided with two first driving motors (61) respectively assembled at the two ends of the first rotating shaft (33) and used for driving the first left and right rear wheels (31 and 32) to move; the second power device (7) is provided with two second driving motors (71) respectively assembled at the two ends of the second rotating shaft (43) and used for driving the second left and right rear wheels (41 and 42) to move.

4. The four-wheel drive electrically powered child stroller of claim 3, wherein: The first power device (6) comprises first driving motors (61) and a first power speed reducer (62); the first driving motors (61) are assembled on the first power speed reducer (62), and the first rotating shaft (33) penetrates through the first power speed reducer (62); the second power device (7) comprises second driving motors (71) and a second power speed reducer (72); the second driving motors (71) are assembled on the second power speed reducer (72), and the second rotating shaft (43) penetrates through the second power speed reducer (72).

5. The four-wheel drive electrically powered child stroller of claim 3, wherein: The bottom of the carriage frame (1) is formed with a first recess (34), the first rotating shaft (33) is assembled in the first recess (34), and at least one first positioning seat (35) is assembled on the first recess (34) and used for limiting the first rotating shaft (33) in the first recess (34).

6. The four-wheel drive electrically powered child vehicle of claim 3, wherein: The bottom of the carriage frame (1) is formed with a second recess (44), the second rotating shaft (43) is assembled in the second recess (44), and at least one second positioning seat (45) is assembled on the second recess (44) and used for limiting the second rotating shaft (43) in the second recess (44).

7. The four-wheel drive electrically powered child vehicle of claim 6, wherein: The second positioning seat (45) and the first positioning seat (35) are both provided with two, and the second positioning seat (45) and the first positioning seat (35) are correspondingly arranged.

8. The four-wheel drive electrically powered child vehicle of claim 1, wherein: The steering mechanism (5) comprises a steering rod (51) and a steering motor (52) for driving the steering rod (51) to rotate; the top end of the steering rod (51) is connected with a stroller direction handle (53); the bottom of the steering rod (51) is connected with a steering assembly (8), and the two ends of the steering assembly (8) are connected with a left front wheel (21) and a right front wheel (22) respectively.

9. The four-wheel drive electrically powered child stroller of claim 8, wherein: The steering assembly (8) comprises a steering positioning frame (80), wheel shafts (81) rotatably connected to the two ends of the steering positioning frame (80) respectively, swing rods (82) vertically fixed to the wheel shafts (81), and linkage rods (83) hingedly connected with the two swing rods (82) respectively; the left front wheel (21) and the right front wheel (22) are rotatably connected with the wheel shafts (81) respectively, and the end of the steering rod (51) is rotatably connected with the midpoint of the linkage rod (83).

10. The four-wheel drive electrically powered child stroller of claim 9, wherein: The linkage rod (83) is provided with two rotation limiting abutting pieces (84), and the two rotation limiting abutting pieces (84) are in abutting cooperation with the two swing rods (82) respectively.

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