Child electric vehicle

Abstract

The utility model relates to the technical field of baby carriages, and discloses a baby electric vehicle which comprises a supporting frame, a front wheel assembly, an armrest assembly, a rear wheel assembly and a driving assembly, the front wheel assembly and the armrest assembly are arranged at the front end of the supporting frame, and the front wheel assembly comprises a front wheel frame and a hub motor installed on the front wheel frame; the rear wheel assembly is arranged at the rear end of the supporting frame. The driving assembly comprises a power supply unit and a control unit, the control unit is arranged on the handrail assembly and is in signal connection with the hub motor, and the power supply unit is electrically connected with the hub motor and the control unit. According to the child electric vehicle, the hub motor arranged on the front wheel assembly is controlled by the driving assembly to rotate, so that driving force is provided for the child electric vehicle, the child electric vehicle is simple in structure, convenient to operate, high in transmission efficiency, high in space utilization rate and good in reliability, and the child electric vehicle can be used as a balance vehicle when not powered on; and when being electrified, the baby carriage can be used as an electric vehicle, so that the interestingness of the baby carriage is improved, and the riding experience of children is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of baby carriage, especially to a children's electric vehicle. BACKGROUND

[0002] The traditional children's car usually provides the forward motion by the child's foot or the double foot pedal, when the child does not want to ride or ride difficultly, the children's car cannot provide additional driving force, which causes inconvenience to the user. Even if some children's electric motorcycles can realize electric drive, the driving motor, transmission mechanism and other structures are relatively complex, the transmission efficiency is low, the space is large, and the fault is easy to occur.

[0003] On the other hand, the existing children's car is generally in the form of two-wheeled car or three-wheeled car, and its use form is usually fixed and cannot be adjusted. Once the structure is determined, the two-wheeled car cannot be converted into a three-wheeled car, and the three-wheeled car cannot be converted into a two-wheeled car, and the distance between the two rear wheels of the three-wheeled car is fixed and cannot be changed. In order to meet the riding needs of children at different growth stages, parents often need to purchase three-wheeled cars with good balance and two-wheeled cars with flexible riding. This not only increases the economic pressure of the family, but also needs to provide enough space for storage.

[0004] In addition, the existing children's car is not convenient to fold, the folding operation is troublesome, and the folding effect is not ideal. After folding, there is still a problem of large volume.

[0005] Therefore, there is an urgent need for a children's electric vehicle to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0006] Based on the above, the purpose of the utility model is to provide a children's electric vehicle, which is simple in structure, convenient to operate, high in transmission efficiency, high in space utilization, good in reliability, improves the interesting of children's car and improves the riding experience of children.

[0007] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0008] The children's electric vehicle comprises:

[0009] The support frame comprises a front end and a rear end;

[0010] The front wheel assembly and the handrail assembly are arranged at the front end of the support frame, and the front wheel assembly comprises a front wheel frame and a hub motor mounted on the front wheel frame;

[0011] The rear wheel assembly is arranged at the rear end of the support frame;

[0012] The driving assembly comprises a power supply unit and a control unit, the control unit is arranged on the handrail assembly, the control unit is signal connected with the hub motor, and the power supply unit is electrically connected with the hub motor and the control unit.

[0013] In some possible embodiments, the support frame comprises a support pipe extending in the front-rear direction, and a first accommodating cavity is formed in the support pipe, and the power supply unit is arranged in the first accommodating cavity.

[0014] In some possible embodiments, the control unit comprises a control button arranged on the armrest assembly and a control circuit board arranged in the first accommodating cavity.

[0015] In some possible embodiments, the support frame further comprises a connecting member arranged at the front end of the support pipe, the connecting member is tubular and extends in the vertical direction, the front wheel frame is rotatably arranged on the connecting member in the circumferential direction of the connecting member, and the armrest assembly comprises a handle support rod, and the handle support rod is rotatably arranged on the connecting member in the circumferential direction of the connecting member.

[0016] In some possible embodiments, the armrest assembly further comprises a handle control rod arranged on the handle support rod, and the handle control rod extends in a direction perpendicular to the extending direction of the handle support rod, and the control unit comprises a control button arranged on the handle control rod.

[0017] In some possible embodiments, the handle support rod is foldable, and the handle support rod comprises a first rod body and a second rod body rotatably connected to each other, and in the folded state, the first rod body is folded towards the second rod body.

[0018] In some possible embodiments, the rear wheel assembly comprises a first rear wheel frame and a second rear wheel frame, the first rear wheel frame is rotatably connected to the rear end of the support frame through a first shaft, and the first rear wheel frame is connected with a first rear wheel; the second rear wheel frame is rotatably connected to the rear end of the support frame through a second shaft, and the second rear wheel frame is connected with a second rear wheel; and the first shaft and the second shaft extend integrally in the vertical direction.

[0019] The distance between the first rear wheel frame and the second rear wheel frame is adjustable to change between a first use state and a second use state.

[0020] In the first use state, the first rear wheel frame and the second rear wheel frame are close to each other, and the first rear wheel and the second rear wheel are close to each other to form a rear wheel group, and the rear wheel group and the front wheel assembly are arranged in the front-rear direction.

[0021] In the second use state, the first rear wheel frame and the second rear wheel frame are symmetrically arranged on the two sides of the support frame, and the first rear wheel, the second rear wheel and the front wheel assembly are arranged in a triangular shape.

[0022] In some possible embodiments, the rear wheel assembly is foldable, and when folded, the first rear wheel frame and the second rear wheel frame are respectively rotated forward to approach the support frame and are located on two sides of the support frame.

[0023] In some possible embodiments, the rear wheel assembly further comprises a first rear wheel mounting seat and a second rear wheel mounting seat, the first rear wheel is rotatably mounted to the first rear wheel mounting seat, and the second rear wheel is rotatably mounted to the second rear wheel mounting seat, the first rear wheel mounting seat is rotatably mounted to the first rear wheel frame through a first rear wheel rotating shaft, and the second rear wheel mounting seat is rotatably mounted to the second rear wheel frame through a second rear wheel rotating shaft.

[0024] The first rear wheel rotating shaft and the second rear wheel rotating shaft are integrally arranged in a vertical direction, so that in the first use state, the first rear wheel can be rotated to the inner side of the first rear wheel frame, and the second rear wheel can be rotated to the inner side of the second rear wheel frame; in the second use state and the folded state, the first rear wheel can be rotated to the outer side of the first rear wheel frame, and the second rear wheel can be rotated to the outer side of the second rear wheel frame.

[0025] In some possible embodiments, the first rear wheel frame can rotate around the first shaft within a range of 180 degrees; and / or, the second rear wheel frame can rotate around the second shaft within a range of 180 degrees; and / or, the first rear wheel can rotate around the first rear wheel rotating shaft within a range of 180 degrees; and / or, the second rear wheel can rotate around the second rear wheel rotating shaft within a range of 180 degrees.

[0026] In some possible embodiments, the support frame rear end is fixed with a first rear wheel frame mounting seat and a second rear wheel frame mounting seat on two sides respectively, the first rear wheel frame is rotatably connected to the first rear wheel frame mounting seat through the first shaft, and the second rear wheel frame is rotatably connected to the second rear wheel frame mounting seat through the second shaft.

[0027] In some possible embodiments, the first rear wheel frame mounting seat is provided with a pair of connecting plates oppositely arranged, one end of the connecting plate is fixed to the support frame, the other end of the connecting plate extends away from the support frame, and the first shaft is rotatably mounted between the two connecting plates.

[0028] The child electric vehicle further has a locking structure, the locking structure comprises a lock tongue movably arranged on the connecting plate and a plurality of lock grooves arranged on the first shaft, and the position of the first rear wheel frame relative to the support frame can be locked through cooperation of the lock tongue and the lock grooves.

[0029] In some possible implementation manners, the child electric vehicle further comprises a pedal located close to the front wheel assembly, and the pedal is provided with an acceleration control and a brake control for controlling the driving speed of the child electric vehicle; and / or the support frame is further provided with a seat, and the seat is adjustable in front-rear position on the support frame.

[0030] The child electric vehicle has the advantages that:

[0031] The child electric vehicle provided by the utility model has the advantages that the driving assembly controls the rotation of the hub motor arranged on the front wheel assembly, thereby providing power for the child electric vehicle to drive the whole vehicle to move forward or backward, and the child electric vehicle has the advantages of simple structure, convenient operation, high transmission efficiency, high space utilization, good reliability, and low possibility of faults, and the child vehicle can be used as a balance car when not powered and as an electric vehicle when powered, thereby improving the interestingness of the child vehicle and enhancing the riding experience of children.

[0032] The child electric vehicle provided by the utility model can be used as a three-wheeled vehicle when the first rear wheel frame and the second rear wheel frame are rotated to open to the two sides, thereby providing sufficient stability for the riding of young children, and can be used as a two-wheeled vehicle when the first rear wheel frame and the second rear wheel frame are rotated to the rear to approach each other, thereby being capable of exercising the balance of children, and the child electric vehicle has the functions of one vehicle for two purposes, is suitable for different stages of growth of children, and saves the purchase cost of a family.

[0033] In addition, the child electric vehicle provided by the utility model can be conveniently folded by rotating the first rear wheel frame and the second rear wheel frame to approach each other, thereby effectively shortening the size of the child electric vehicle in the length direction, reducing the occupied space, and facilitating the carrying and storage of the child electric vehicle by a user. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a structural schematic view of the child electric vehicle (in a three-wheeled wide wheelbase state) provided by the utility model embodiment;

[0035] Figure 2 is Figure 1 a bottom view of the child electric vehicle;

[0036] Figure 3is a structure schematic view of the child electric vehicle (when the front and rear seat is adjusted) provided by the embodiment of the utility model;

[0037] Figure 4 is a structure schematic view of the child electric vehicle (when in the three-wheel narrow wheelbase state) provided by the embodiment of the utility model;

[0038] Figure 5 is Figure 4 the bottom view of the child electric vehicle (when in the two-wheel state) provided by the embodiment of the utility model;

[0039] Figure 6 is a structure schematic view of the child electric vehicle (when in the two-wheel state) provided by the embodiment of the utility model;

[0040] Figure 7 is Figure 6 the bottom view of the child electric vehicle (when in the two-wheel state) provided by the embodiment of the utility model;

[0041] Figure 8 is a structure schematic view of the child electric vehicle (when in the two-wheel state) provided by the embodiment of the utility model;

[0042] Figure 9 is Figure 8 the bottom view of the child electric vehicle (when in the two-wheel state) provided by the embodiment of the utility model.

[0043] In the drawings:

[0044] 1, support frame; 11, first rear wheel frame mounting seat; 12, second rear wheel frame mounting seat; 13, connecting piece; 2, front wheel assembly; 3, handrail assembly; 31, handlebar support rod; 32, handlebar control rod; 33, adapter; 34, third shaft; 4, first rear wheel frame; 41, first shaft; 42, first rear wheel mounting seat; 5, second rear wheel frame; 51, second shaft; 52, second rear wheel mounting seat; 6, first rear wheel; 61, first rear wheel rotating shaft; 7, second rear wheel; 71, second rear wheel rotating shaft; 8, seat; 9, pedal. DETAILED DESCRIPTION

[0045] The utility model will be further explained in detail in combination with the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all the structures.

[0046] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element mutual action relation.For the ordinary skilled in the art, the above-mentioned terms can be understood according to the specific meaning of the utility model.

[0047] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first feature and the second feature direct contact, also can include the first feature and the second feature is not direct contact but is through the contact between other features of them.And, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the first feature horizontal height is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the first feature horizontal height is less than the second feature.

[0048] In the description of the utility model, the orientation or position relationship of the terms "on", "under", "left", "right" and the like is based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0049] The embodiment provides a kind of electric child car, to solve the problem that additional driving force or motor drive structure is complex in prior art child car, and child car function single, form is not adjustable, folding is not convenient.The need to be explained is, in the embodiment, "front" refers to the front of the electric child car driving direction, "rear" refers to the rear of the electric child car driving direction, "left" refers to the left side when child faces forward and rides, "right" refers to the right side when child faces forward and rides.

[0050] As Figures 1 to 9As shown, the child electric vehicle provided by the embodiment comprises a support frame 1, a front wheel assembly 2, a handrail assembly 3, a rear wheel assembly and a driving assembly. The support frame 1 extends along the front-rear direction of the vehicle body and is a main support component of the vehicle frame. The front wheel assembly 2 and the handrail assembly 3 are arranged at the front end of the support frame 1, the front wheel assembly 2 comprises a front wheel frame and a hub motor mounted on the front wheel frame, and the hub motor is used to drive the front wheel to rotate. The rear wheel assembly is arranged at the rear end of the support frame 1. The driving assembly comprises a power supply unit and a control unit. The control unit is arranged on the handrail assembly 3 to facilitate the operation of children; the control unit is signal connected with the hub motor to control the start-stop, steering and rotating speed of the hub motor. The power supply unit is electrically connected with the hub motor and the control unit to provide electric energy. Optionally, the power supply unit is a rechargeable power supply unit to charge in time when the power supply unit is insufficient. The child electric vehicle provided by the embodiment controls the rotation of the hub motor arranged on the front wheel assembly 2 through the driving assembly, thereby providing power for the child electric vehicle to drive the whole vehicle to move forward or backward. The child electric vehicle has the advantages of simple structure, convenient operation, high transmission efficiency, high space utilization, good reliability and low failure rate. Moreover, the child vehicle can be used as a balance car when not powered and as an electric vehicle when powered, thereby improving the interestingness of the child vehicle and enhancing the riding experience of children. Moreover, the front wheel of the embodiment is a driving wheel, so that the front wheel has both steering function and driving function, making it convenient to steer at large and small angles, flexible, stable and reliable, and not requiring structures such as transmission bars and differentials, facilitating the independent design of the two rear wheels, simplifying the structure and reducing energy consumption.

[0051] Optionally, the support frame 1 comprises a support pipe extending along the front-rear direction, and a first accommodating cavity is formed in the support pipe, and the power supply unit is arranged in the first accommodating cavity. The structure of the support pipe is beneficial to reduce the overall weight of the child electric vehicle; the power supply unit is arranged in the first accommodating cavity, so that the structure is compact, the installation space is saved, the space utilization of the child electric vehicle is effectively improved, and the appearance is more beautiful and neat. Further, the control unit comprises a control button and a control circuit board, wherein the control button is arranged on the handrail assembly 3 to facilitate the operation of children; and the control circuit board is arranged in the first accommodating cavity, which can reasonably utilize the space in the support frame 1, improve the use safety of the child electric vehicle, and provide good protection for the control circuit board.

[0052] In the embodiment, the support frame 1 further has a connecting piece 13 arranged at the front end of the support pipe, the connecting piece 13 is tubular and extends in the vertical direction, the front wheel frame is rotatably arranged on the connecting piece 13 in the circumferential direction of the connecting piece 13, and the handrail assembly 3 includes a handle support rod 31 rotatably arranged on the connecting piece 13 in the circumferential direction of the connecting piece 13. By arranging the connecting piece 13, the rotation of the handrail assembly 3 and the front wheel assembly 2 relative to the support frame 1 is facilitated. Specifically, the handle support rod 31 of the embodiment passes through the connecting piece 13 from top to bottom and is connected with the front wheel frame, so as to drive the front wheel assembly 2 to turn. It should be noted that the power supply unit and / or the control circuit board of the embodiment can also be arranged in the connecting piece 13, which also improves the space utilization. Further, the handrail assembly 3 further has a handle control rod 32 arranged above the handle support rod 31, the handle control rod 32 extends in a direction perpendicular to the extension direction of the handle support rod 31 (i.e., the handle control rod 32 extends in the horizontal direction), and the control buttons in the control unit are arranged on the handle control rod 32. The above arrangement facilitates the child to hold the handle control rod 32 to control the driving direction of the electric vehicle, and the control buttons are close to the hands of the child, which facilitates the child to touch the control buttons during riding.

[0053] In the embodiment, the rear wheel assembly includes a first rear wheel frame 4 and a second rear wheel frame 5. The first rear wheel frame 4 extends obliquely downward from the rear end of the support frame 1, a first end of the first rear wheel frame 4 is rotatably connected to the left side of the rear end of the support frame 1 through a first shaft 41, so as to realize the rotation of the first rear wheel frame 4 relative to the support frame 1 forward or backward, and a first rear wheel 6 is connected to a second end of the first rear wheel frame 4. The second rear wheel frame 5 extends obliquely downward from the rear end of the support frame 1, a first end of the second rear wheel frame 5 is rotatably connected to the right side of the rear end of the support frame 1 through a second shaft 51, so as to realize the rotation of the second rear wheel frame 5 relative to the support frame 1 forward or backward, and a second rear wheel 7 is connected to a second end of the second rear wheel frame 5. In the embodiment, the first shaft 41 and the second shaft 51 both extend in the vertical direction.

[0054] The rear wheel assembly of the embodiment is foldable, which has a folded state and an unfolded state. In the folded state (as shown in Figures 8-9 ), the first rear wheel frame 4 and the second rear wheel frame 5 are respectively rotated forward to be close to the support frame 1 and are located on the two sides of the support frame 1; in the unfolded state (as shown in Figures 1-7), the first rear wheel frame 4 and the second rear wheel frame 5 rotate towards the direction away from the support frame 1 and rotate to the rear side of the support frame 1. The children's electric vehicle provided by the embodiment has simple structure, and the children's electric vehicle can be folded conveniently by rotating the first rear wheel frame 4 and the second rear wheel frame 5 to approach each other, the length of the children's electric vehicle is effectively shortened, the space occupied by the children's electric vehicle is reduced, and the children's electric vehicle is convenient to carry and store. Further, the handle support rod 31 of the embodiment can also be folded. Specifically, the handle support rod 31 comprises a first rod body and a second rod body which are rotationally connected, the first rod body is above the second rod body, and in the folded state, the first rod body approaches the second rod body to be folded. In this way, the size of the children's electric vehicle after folding is further reduced, and the storage space is saved. Optionally, a rotary joint 33 is arranged between the first rod body and the second rod body, the rotary joint 33 is fixed to the second rod body, and the first rod body is rotationally connected to the rotary joint 33 through a third shaft 34, so that the first rod body can rotate to the direction close to the second rod body to realize folding. Preferably, the third shaft 34 extends in the horizontal direction and is perpendicular to the support frame 1.

[0055] Further, the distance between the first rear wheel frame 4 and the second rear wheel frame 5 is adjustable to change between the first use state and the second use state. In the first use state, the first rear wheel frame 4 and the second rear wheel frame 5 rotate to approach each other, and the first rear wheel 6 and the second rear wheel 7 are close to form a rear wheel group, and the rear wheel group and the front wheel assembly 2 are arranged in the front-rear direction, that is, at this time, the children's electric vehicle is in a two-wheel state (see Figures 6-7 ), and the balance of the child can be exercised when riding. In the second use state, the first rear wheel frame 4 and the second rear wheel frame 5 are symmetrically arranged on the two sides of the support frame 1, and the first rear wheel 6, the second rear wheel 7 and the front wheel assembly 2 are arranged in a triangular shape as a whole, that is, at this time, the children's electric vehicle is in a three-wheel state (see Figures 1-5 ), and sufficient stability is provided for the riding of young children. Therefore, the children's electric vehicle of the embodiment realizes the function of one vehicle for two purposes, is suitable for different stages of children's growth, and saves the purchase cost of the family. Moreover, when the children's electric vehicle is in the three-wheel state, the distance between the first rear wheel 6 and the second rear wheel 7 can be adjusted by simultaneously rotating the first rear wheel frame 4 and the second rear wheel frame 5 forward or backward (see Figures 1-3 for a wide wheelbase state, and Figures 4-5 for a narrow wheelbase state), so that the children's electric vehicle can be used in various forms to meet the different riding needs of children and improve the riding experience of children.

[0056] Optionally, the rear wheel assembly further comprises a first rear wheel mounting seat 42 and a second rear wheel mounting seat 52. The first rear wheel mounting seat 42 is rotatably mounted to the second end of the first rear wheel frame 4 through a first rear wheel rotating shaft 61, and the first rear wheel 6 is rotatably mounted to the first rear wheel mounting seat 42. The first rear wheel rotating shaft 61 extends along the vertical direction, so that the first rear wheel 6 can be smoothly turned between the inner side and the outer side of the first rear wheel frame 4. The second rear wheel mounting seat 52 is rotatably mounted to the second end of the second rear wheel frame 5 through a second rear wheel rotating shaft 71, and the second rear wheel 7 is rotatably mounted to the second rear wheel mounting seat 52. The second rear wheel rotating shaft 71 extends along the vertical direction, so that the second rear wheel 7 can be smoothly turned between the inner side and the outer side of the second rear wheel frame 5. Specifically, in the first use state (i.e., when the child electric vehicle is in a two-wheel state), the first rear wheel 6 is turned to the inner side of the first rear wheel frame 4, the second rear wheel 7 is turned to the inner side of the second rear wheel frame 5, and the free end face of the first rear wheel 6 and the free end face of the second rear wheel 7 are mutually attached. This is conducive to reducing the width of the rear wheel group formed by the first rear wheel 6 and the second rear wheel 7 when the child electric vehicle is in a two-wheel state, and improving the comfort and flexibility when riding in two-wheel state. In the second use state (i.e., when the child electric vehicle is in a three-wheel state), the first rear wheel 6 is turned to the outer side of the first rear wheel frame 4, and the second rear wheel 7 is turned to the outer side of the second rear wheel frame 5, so as to improve the stability of the support. Further, when the child electric vehicle is in a folded state, the first rear wheel 6 is turned to the outer side of the first rear wheel frame 4, the second rear wheel 7 is turned to the outer side of the second rear wheel frame 5, and the free end face of the first rear wheel 6 and the free end face of the second rear wheel 7 are mutually away. This can further reduce the volume of the child electric vehicle after folding, reduce the space occupied, and facilitate the user to store and carry.

[0057] In the embodiment, the first rear wheel frame 4, the second rear wheel frame 5, the first rear wheel 6 and the second rear wheel 7 can all rotate horizontally around their respective axes without changing the height position. Optionally, the first rear wheel frame 4 rotates around the first axis 41 within an angle range of 180 degrees, and the second rear wheel frame 5 rotates around the second axis 51 within an angle range of 180 degrees. This arrangement provides sufficient space for the front and rear rotation of the first rear wheel frame 4 and the second rear wheel frame 5, ensuring that after rotating to the rear, the three-wheel state and the two-wheel state can be switched, and after rotating to the front, the child electric vehicle can be folded. Further, the first rear wheel 6 rotates around the first rear wheel rotating shaft 61 within an angle range of 180 degrees, so as to ensure that the first rear wheel 6 can be smoothly turned between the inner side and the outer side of the first rear wheel frame 4. At the same time, the second rear wheel 7 rotates around the second rear wheel rotating shaft 71 within an angle range of 180 degrees, so as to ensure that the second rear wheel 7 can be smoothly turned between the inner side and the outer side of the second rear wheel frame 5.

[0058] In the embodiment, the left side of the rear end of the support frame 1 is fixed with a first rear wheel frame mounting seat 11, and the first rear wheel frame 4 is rotatably connected to the first rear wheel frame mounting seat 11 through a first shaft 41. Meanwhile, the right side of the rear end of the support frame 1 is fixed with a second rear wheel frame mounting seat 12, and the second rear wheel frame 5 is rotatably connected to the second rear wheel frame mounting seat 12 through a second shaft 51. In this way, the structure is simple, the connection is reliable, and the stability of the relative rotation between the first rear wheel frame 4 and the second rear wheel frame 5 is ensured. Specifically, the first rear wheel frame mounting seat 11 has a pair of connecting plates oppositely arranged, one end of the connecting plate is fixed to the support frame 1, the other end of the connecting plate extends away from the support frame 1, and the first shaft 41 is rotatably installed between the two connecting plates. The second rear wheel frame mounting seat 12 has the same structure as the first rear wheel frame mounting seat 11, and details are not repeated here.

[0059] Further, the first rear wheel frame mounting seat 11 is also provided with a locking structure, which includes a lock tongue movably arranged on the connecting plate and a plurality of lock grooves arranged on the first shaft 41. The position of the first rear wheel frame 4 relative to the support frame 1 can be locked by the cooperation of the lock tongue and the lock grooves. Similarly, the second rear wheel frame mounting seat 12 is also provided with a locking structure for locking the position of the second rear wheel frame 5 relative to the support frame 1. In the embodiment, the above-mentioned locking structure is provided to ensure the stability of the position of the first rear wheel frame 4 and the second rear wheel frame 5 during riding, thereby improving the riding safety. In addition, the first rear wheel mounting seat 42 is also provided with a locking structure for locking the position of the first rear wheel 6 relative to the first rear wheel frame 4, and the second rear wheel mounting seat 52 is also provided with a locking structure for locking the position of the second rear wheel 7 relative to the second rear wheel frame 5, thereby ensuring the stability of the position of the first rear wheel 6 and the second rear wheel 7 during riding, and improving the riding safety.

[0060] It should be noted that the above-mentioned locking structure can be realized by using a pin, a buckle, a toothed part or other structures capable of limiting the rotation of the shaft in the prior art, and the embodiment does not limit this.

[0061] In the embodiment, the support frame 1 is also provided with a seat 8 for the child to ride. The seat 8 can be fixedly connected to the support frame 1 by fasteners such as bolts, nuts, etc. The structure is simple, stable and reliable. Further, the seat 8 is adjustable in position along the front-rear direction on the support frame 1, so as to meet the riding needs of children of different ages and heights on the child electric vehicle, thereby improving the use flexibility of the child electric vehicle.

[0062] Further, the child electric vehicle of the embodiment further comprises a pedal 9 located close to the front wheel assembly 2. Specifically, the pedal 9 can be arranged at the lower part of the front end of the support frame 1 for placing the child's feet, or the pedal 9 can be connected to the both sides of the wheel shaft of the front wheel assembly 2, which can be used as a footrest mechanism to drive the child vehicle to run by the child's pedaling. Further, the pedal 9 is further provided with an acceleration control and a brake control for controlling the running speed of the child electric vehicle, which is simple and convenient to operate.

[0063] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For the ordinary skilled in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the utility model. Here, it is unnecessary and impossible to enumerate all the embodiments. Any modification, equivalent substitution and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A children's electric vehicle, characterized in that The utility model relates to a kind of foldable electric scooter, including: Support frame; Front wheel assembly and armrest assembly, disposed at the front end of the support frame, the front wheel assembly includes front wheel frame and hub motor mounted to the front wheel frame; Rear wheel assembly, disposed at the rear end of the support frame, the rear wheel assembly includes first rear wheel frame and second rear wheel frame, the first rear wheel frame is rotatably connected to the rear end of the support frame by first shaft, the first rear wheel frame is connected with first rear wheel;The second rear wheel frame is rotatably connected to the rear end of the support frame by second shaft, the second rear wheel frame is connected with second rear wheel;The first shaft and the second shaft are integrally arranged along the vertical direction; Drive assembly, including power supply unit and control unit, the control unit is arranged in the armrest assembly, the control unit is signal connected with the hub motor, the power supply unit is electrically connected with the hub motor, the control unit; The distance between the first rear wheel frame and the second rear wheel frame is adjustable to change between the first use state and the second use state; In the first use state, the first rear wheel frame and the second rear wheel frame approach each other, the first rear wheel and the second rear wheel are together to form a rear wheel group, the rear wheel group is arranged along the front and rear direction with the front wheel assembly; In the second use state, the first rear wheel frame and the second rear wheel frame are symmetrically arranged on both sides of the support frame, the first rear wheel, the second rear wheel and the front wheel assembly are arranged in a triangular shape as a whole.

2. The electrically motorized children's vehicle of claim 1, wherein, The support frame includes a support tube extending along the front and rear direction, a first accommodating cavity is formed in the support tube, and the power supply unit is arranged in the first accommodating cavity.

3. The electrically motorized children's vehicle of claim 2, wherein, The control unit includes a control button arranged in the armrest assembly and a control circuit board located in the first accommodating cavity.

4. The electrically motorized children's vehicle of claim 2, wherein, The support frame also has a connecting piece arranged at the front end of the support tube, the connecting piece is tubular and extends along the vertical direction, the front wheel frame is rotatably mounted on the connecting piece along the circumferential direction of the connecting piece, and the armrest assembly includes a handle support rod rotatably mounted on the connecting piece along the circumferential direction of the connecting piece.

5. The electrically motorized children's vehicle of claim 4, wherein, The armrest assembly also has a handle control rod arranged on the handle support rod, the extension direction of the handle control rod is perpendicular to the extension direction of the handle support rod, and the control unit includes a control button arranged on the handle control rod.

6. The electrically motorized children's vehicle of claim 4, wherein, The handle support rod is foldable, and the handle support rod includes a first rod body and a second rod body rotatably connected, in the folded state, the first rod body approaches the second rod body to fold.

7. The electrically motorized children's vehicle of claim 1, wherein, The rear wheel assembly is foldable, and in the folded state, the first rear wheel frame and the second rear wheel frame are respectively rotated forward to approach the support frame and are located on both sides of the support frame relative to each other; The rear wheel assembly also includes a first rear wheel mounting seat and a second rear wheel mounting seat, the first rear wheel is rotatably mounted to the first rear wheel mounting seat, and the second rear wheel is rotatably mounted to the second rear wheel mounting seat, the first rear wheel mounting seat is rotatably mounted to the first rear wheel frame by a first rear wheel rotating shaft, and the second rear wheel mounting seat is rotatably mounted to the second rear wheel frame by a second rear wheel rotating shaft. The first rear wheel rotating shaft and the second rear wheel rotating shaft extend in the vertical direction as a whole, so that in the first use state, the first rear wheel can rotate to the inner side of the first rear wheel frame, and the second rear wheel can rotate to the inner side of the second rear wheel frame; in the second use state and the folding state, the first rear wheel can rotate to the outer side of the first rear wheel frame, and the second rear wheel can rotate to the outer side of the second rear wheel frame. The first rear wheel frame can rotate around the first shaft within a range of 180 degrees; and / or, the second rear wheel frame can rotate around the second shaft within a range of 180 degrees; and / or, the first rear wheel can rotate around the first rear wheel rotating shaft within a range of 180 degrees; and / or, the second rear wheel can rotate around the second rear wheel rotating shaft within a range of 180 degrees.

8. The electrically motorized children's vehicle of claim 1, wherein, The first rear wheel frame is rotatably connected to the first rear wheel frame mounting seat through the first shaft, and the second rear wheel frame is rotatably connected to the second rear wheel frame mounting seat through the second shaft. The first rear wheel frame mounting seat is provided with a pair of connecting plates arranged oppositely, one end of the connecting plate is fixed to the support frame, and the other end of the connecting plate extends away from the support frame; the first shaft is rotatably mounted between the two connecting plates. The child electric vehicle further has a locking structure, which includes a lock tongue movably arranged on the connecting plate and a plurality of lock grooves arranged on the first shaft, and the position of the first rear wheel frame relative to the support frame can be locked through cooperation of the lock tongue and the lock grooves.

9. The electrically motorized children's vehicle of claim 1, wherein, The child electric vehicle further includes a pedal, which is located close to the front wheel assembly, and the pedal is provided with an acceleration control and a brake control for controlling the driving speed of the child electric vehicle. And / or, the support frame is further provided with a seat, and the front and rear positions of the seat on the support frame are adjustable.

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