A children's vehicle

By designing a rotatable carrier and transmission structure on the children's car, the multi-functional use of the children's car in different positions is achieved, meeting the needs of children of different ages and ensuring safety and operational flexibility.

CN117284404BActive Publication Date: 2025-08-01ZHONGSHAN JIBAO TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202210685945.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-16
Publication Date
2025-08-01
Estimated Expiration
2042-06-16

AI Technical Summary

Technical Problem

The existing children's scooter has a single function and cannot be adapted to older children playing on their own and younger children with low control at the same time, and it is not convenient for adults to implement.

Method used

A children's car is designed, including a rotatable carrier, which can switch between vertical and horizontal positions. The front wheel steering is realized through a transmission structure between the rotating rod and the front fork assembly. It is equipped with a joystick for adults to operate, meeting the use needs of children of different ages.

Benefits of technology

It realizes that children's car can slide on its own and ride in vertical and horizontal positions, which is suitable for children of different ages to ensure safety and operation flexibility.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a children's vehicle, which includes a bottom support frame. A front fork assembly is connected to the front side of the bottom support frame, and a front wheel is connected to the front fork assembly. The bottom support frame is connected with a rear wheel. A bearing frame that can rotate relative to it is also connected to the front side of the bottom support frame. The positions where the bearing frame stays include a vertical position and a horizontal position. A seat part for children to sit on is provided on the bearing frame when it stays in the horizontal position. A rotating rod that can rotate inside it when the bearing frame stays in either the vertical position or the horizontal position is provided inside the bearing frame. A connecting position for connecting a steering handle when the bearing frame is in the vertical position and for connecting a control lever when the bearing frame is in the horizontal position is provided on the rotating rod. A plugging position for connecting a steering handle when the bearing frame moves to the horizontal position is provided on the front fork assembly. A transmission structure is also provided between the rotating rod and the front fork assembly, which can drive the front fork assembly to rotate when the rotating rod rotates relative to the bearing frame, so that the front wheel can be steered. The structure of the present invention is simple, with diverse functions and good safety performance.
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Description

Technical Field

[0001] The present invention relates to a children's vehicle.

Background Art

[0002] Children's vehicles are common products in the process of children's growth. Currently, there are scooters and so on. However, the current scooters are generally standing types. When children use them, they hold the steering handle with both hands, step on the bottom support frame with one foot, and slide by pedaling with the other foot to play. Such scooters have relatively single functions.

[0003] The Chinese patent "A multi-functional vehicle, publication number (CN208842557U)" discloses a vehicle that can be used for children to stand and slide as well as for children to ride. However, this vehicle is only suitable for slightly older children to play by themselves, and it is inconvenient for adults to push. It is not suitable for young children with low control ability to play. Therefore, more and more users are eager for a children's vehicle that can be used by both young children and older children, and they also hope that this vehicle can be used as a scooter and for children to ride.

Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a children's vehicle with a simple structure and convenient operation. This children's vehicle can be used for children to stand and slide as well as for children to ride. More importantly, the children's vehicle of the present invention can be used by both older children to play by themselves and young children with low control ability. When young children play, adults can operate the children's vehicle through the control rod to ensure safety.

[0005] The present invention is realized through the following technical solutions:

[0006] A children's vehicle includes a bottom support frame 1. A front fork assembly 2 that can rotate relative to it and is used for steering the children's vehicle is connected to the front side of the bottom support frame 1. A front wheel 31 is connected to the front fork assembly 2. A rear wheel 32 is connected to the rear side of the bottom support frame 1. A carrier 4 that can rotate relative to it in the vertical plane is also connected to the front side of the bottom support frame 1. The positions where the carrier 4 stays include a vertical position and a horizontal position. A seat part 41 for children to sit on is provided on the carrier 4 when it stays in the horizontal position. A rotating rod 5 that can rotate inside it when the carrier 4 stays in either the vertical position or the horizontal position is provided inside the carrier 4. A connection position 8 for connecting the steering handle 6 when the carrier 4 is in the vertical position and for connecting the control rod 7 when the carrier 4 is in the horizontal position is provided on the rotating rod 5. A plug-in position 23 for connecting the steering handle 6 when the carrier 4 moves to the horizontal position is provided on the front fork assembly 2. A transmission structure 9 that can drive the front fork assembly 2 to rotate when the rotating rod 5 rotates relative to the carrier 4 so that the front wheel 31 can be steered is also provided between the rotating rod 5 and the front fork assembly 2.

[0007] The described transmission structure 9 includes an oblong hole 91 provided on the front fork assembly 2. A drive shaft 92 is provided on the rotating rod 5. When the carrier 4 rotates relative to the bottom support frame 1, the drive shaft 92 can rotate within the oblong hole 91. When the rotating rod 5 rotates relative to the carrier 4, the drive shaft 92 can push against the wall of the oblong hole 91 to cause the front fork assembly 2 to rotate. The drive shaft 92 is disposed within the oblong hole 91 along the left-right direction of the children's vehicle.

[0008] The longitudinal section of the oblong hole 91 is strip-shaped and has a first end 91a and a second end 91b. The first end 91a is located on the front side of the drive shaft 92, and the second end 91b is located on the rear side of the drive shaft 92. Moreover, the height of the first end 91a from the ground is lower than the height of the second end 91b from the ground.

[0009] The front fork assembly 2 includes a fork body 21 for connecting the front wheel 31. A column 22 is connected to the fork body 21. The oblong hole 91 is disposed through the column 22 along the left-right direction of the children's vehicle. A U-shaped fork 51 into which the upper end of the column 22 can be inserted is provided at the lower end of the rotating rod 5. The drive shaft 92 is disposed on the U-shaped fork 51.

[0010] The column 22 is a cylindrical tubular structure.

[0011] When the carrier 4 stays in the vertical position, the central axis 92a of the drive shaft 92 and the rotation axis 2a of the front fork assembly 2 always intersect and are perpendicular to each other.

[0012] When the carrier 4 stays in the horizontal position and the front wheel 31 is not turned, the drive shaft 92 is parallel to the horizontal ground 100. When the carrier 4 stays in the horizontal position and the front wheel 31 is turned, one end of the drive shaft 92 is high and the other end is low, being inclined relative to the horizontal ground 100.

[0013] The bottom support frame 1 includes a front support frame 11, a left rear frame 12 and a right rear frame 13 that can rotate relative to the front support frame 11 to open and close. The rear wheel 32 includes a left wheel 321 connected to the left rear frame 12 and a right wheel 322 connected to the right rear frame 13. The front fork assembly 2 is connected to the front support frame 11. The left wheel 321 includes a left wheel bracket 3211 and a left wheel body 3212 connected to the left wheel bracket 3211. The left wheel bracket 3211 is rotatably connected to the left rear frame 12 such that the left wheel 321 can rotate from the outside of the left rear frame 12 to the inside of the left rear frame 12. The right wheel 322 includes a right wheel bracket 3221 and a right wheel body 3222 connected to the right wheel bracket 3221. The right wheel bracket 3221 is rotatably connected to the right rear frame 13 such that the right wheel 322 can rotate from the outside of the right rear frame 13 to the inside of the right rear frame 13.

[0014] A detachable footrest 33 is also connected to the front wheel 31 described above.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. When the carrier frame of the present invention stays in the vertical position, the steering handle is connected to the connection position on the rotating rod. At this time, a child can drive the rotating rod to rotate relative to the carrier frame by manipulating the steering handle. During the rotation of the rotating rod relative to the carrier frame, the front fork assembly is driven to rotate through the transmission structure between the rotating rod and the front fork assembly, so as to realize the front wheel steering. At this time, the children's vehicle is used as a scooter. When the carrier frame stays in the horizontal position, the steering handle is connected to the insertion position on the front fork assembly, and a child can sit on the carrier frame to ride. More importantly, when the carrier frame stays in the horizontal position, a control rod can also be connected to the connection position of the rotating rod. The control rod can be used by an adult to control the children's vehicle. When the adult makes the rotating rod rotate relative to the carrier frame through the control rod, the rotating rod drives the front fork assembly to rotate through the transmission structure between it and the front fork assembly, so as to realize the steering of the children's vehicle. In this way, the adult can realize the steering of the children's vehicle through the control rod. In the case of using the control rod, it is especially suitable for children with weak control ability at a young age to play. Therefore, whether the carrier frame stays in the vertical position or the horizontal position, the steering of the children's vehicle can be realized during the rotation of the rotating rod relative to the carrier frame, and the design is ingenious.

[0017] 2. The transmission structure of the present invention includes an oblong hole provided on the front fork assembly, and a drive shaft is provided on the rotating rod and passes through the oblong hole. When the carrier frame switches between the vertical position and the horizontal position, the carrier frame rotates relative to the bottom support frame in the vertical plane. At the same time, the drive shaft rotates in the oblong hole, causing the rotating rod to move together with the carrier frame. When the carrier frame is in the vertical position and the rotating rod rotates relative to the carrier frame, the outer side wall of the drive shaft applies a force to the hole wall of the oblong hole, thereby pushing the front fork assembly to rotate relative to the bottom support frame to realize the front wheel steering. When the carrier frame is in the horizontal position and the rotating rod rotates relative to the carrier frame, one end of the drive shaft presses down on the lower side wall of the oblong hole, and the other end applies an upward force to the upper side wall of the oblong hole. Also, since the drive shaft is arranged in the oblong hole along the left-right direction of the children's vehicle, in this case, the drive shaft drives the front fork assembly to rotate, so as to realize the front wheel steering.

[0018] 3. The longitudinal section of the oblong hole of the present invention is strip-shaped and has a first end and a second end. The first end is located on the front side of the drive shaft, and the second end is located on the rear side of the drive shaft. Moreover, the height of the first end from the ground is lower than that of the second end from the ground. Therefore, when the carrier is in the vertical position, during the rotation of the rotating rod relative to the carrier, the drive shaft pushes the side wall of the oblong hole to drive the front fork assembly to rotate. When the carrier is in the horizontal position, during the rotation of the rotating rod relative to the carrier, one end of the drive shaft applies a force to the lower side wall of the oblong hole, and the other end applies a force to the upper side wall of the oblong hole, thereby driving the front fork assembly to rotate. The whole structure is simple and compact, and the design is ingenious.

[0019] 4. The structure of the present invention is simple, the operation is convenient, and it has various functions, which is suitable for popularization and application.

Description of the Drawings

[0020] Figure 1 is a perspective view of the carrier of the present invention in the vertical position;

[0021] Figure 2 is a cross-sectional view of the carrier of the present invention in the vertical position;

[0022] Figure 3 is Figure 2 an enlarged view of part A in

[0023] Figure 4 is a side view of the component of the present invention;

[0024] Figure 5 is an exploded view of the present invention;

[0025] Figure 6 is a perspective view of the carrier of the present invention in the vertical position and when the front wheel is turned;

[0026] Figure 7 is a cross-sectional view of the carrier of the present invention in the vertical position and when the front wheel is turned;

[0027] Figure 8 is a perspective view of the carrier of the present invention in the horizontal position;

[0028] Figure 9 is a front view of the carrier of the present invention in the horizontal position and when the front wheel is turned;

[0029] Figure 10 is a cross-sectional view of the carrier of the present invention in the horizontal position;

[0030] Figure 11 is Figure 10 an enlarged view of part B in

[0031] Figure 12 is a front view of the component of the present invention when the carrier is in the horizontal position and the front wheel is not turned;

[0032] Figure 13 is a front view of the components of the present invention when the carrier is in the lateral position and the front wheels are steered;

[0033] Figure 14 is one of the schematic diagrams of the present invention when it is used as a learning bicycle;

[0034] Figure 15 is another schematic diagram of the present invention when it is used as a learning bicycle.

Detailed implementation manners

[0035] The present invention will be further described below in conjunction with the accompanying drawings:

[0036] Such as Figures 1 to 13As shown in the figure, a children's vehicle includes a bottom support frame 1. A front fork assembly 2 that can rotate relative to the bottom support frame 1 and is used for steering the children's vehicle is connected to the front side of the bottom support frame 1. A front wheel 31 is connected to the front fork assembly 2. A rear wheel 32 is connected to the rear side of the bottom support frame 1. A carrier frame 4 that can rotate relative to the bottom support frame 1 in the vertical plane is also connected to the front side of the bottom support frame 1. The positions where the carrier frame 4 stays include a vertical position and a horizontal position. A seat portion 41 for a child to sit on is provided on the carrier frame 4 when it stays in the horizontal position. A rotating rod 5 that can rotate within the carrier frame 4 when the carrier frame 4 stays in either the vertical position or the horizontal position is provided inside the carrier frame 4. A connection position 8 for connecting a steering handle 6 when the carrier frame 4 is in the vertical position and for connecting a control lever 7 when the carrier frame 4 is in the horizontal position is provided on the rotating rod 5. A plug-in position 23 for connecting the steering handle 6 when the carrier frame 4 moves to the horizontal position is provided on the front fork assembly 2. A transmission structure 9 that can drive the front fork assembly 2 to rotate when the rotating rod 5 rotates relative to the carrier frame 4 so that the front wheel 31 can be steered is further provided between the rotating rod 5 and the front fork assembly 2. When the carrier frame 4 stays in the vertical position, the steering handle 6 is connected to the connection position 8 on the rotating rod 5. At this time, a child can drive the rotating rod 5 to rotate relative to the carrier frame 4 by manipulating the steering handle 6. During the process of the rotating rod 5 rotating relative to the carrier frame 4, the front fork assembly 2 is driven to rotate through the transmission structure 9 between the rotating rod 5 and the front fork assembly 2, thereby realizing the steering of the front wheel 31. At this time, the children's vehicle is used as a scooter. When the carrier frame 4 stays in the horizontal position, the steering handle 6 is connected to the plug-in position 23 on the front fork assembly 2. A child can sit on the carrier frame 4 and ride. More importantly, when the carrier frame 4 stays in the horizontal position, a control lever 7 can also be connected to the connection position 8 of the rotating rod 5. The control lever 7 can be used by an adult to operate the children's vehicle. When the adult makes the rotating rod 5 rotate relative to the carrier frame 4 through the control lever 7, the rotating rod 5 drives the front fork assembly 2 to rotate through the transmission structure 9 between it and the front fork assembly 2, thereby realizing the steering of the children's vehicle. In this way, the adult can realize the steering of the children's vehicle through the control lever 7. In the case of using the control lever 7, it is especially suitable for young children with weak control ability to play. Therefore, regardless of whether the carrier frame 4 stays in the vertical position or the horizontal position, during the process of the rotating rod 5 rotating relative to the carrier frame, the steering of the children's vehicle can be realized. Therefore, this children's vehicle can not only be used for children to stand and slide, but also for children to sit and ride. It can be used by older children to play by themselves, and can also be used by children with low control ability to play under the supervision of adults. When young children with low control ability play, adults can operate the children's vehicle through the control lever to ensure safety.

[0037] As Figures 2 to 7 , and Figures 11 to 13As shown, the transmission structure 9 includes an oblong hole 91 provided on the front fork assembly 2. A drive shaft 92 is provided on the rotating rod 5. When the carrier 4 rotates relative to the bottom support frame 1, the drive shaft 92 can rotate within the oblong hole 91, and when the rotating rod 5 rotates relative to the carrier 4, the drive shaft 92 can push the wall of the oblong hole 91 to cause the front fork assembly 2 to rotate. The drive shaft 92 is disposed within the oblong hole 91 along the left-right direction of the child's bicycle. When the carrier 4 switches between the vertical position and the horizontal position, the carrier 4 rotates relative to the bottom support frame 1 in the vertical plane. At the same time, the drive shaft 92 rotates within the oblong hole 91, causing the rotating rod 5 to move together with the carrier 4. When the carrier 4 is in the vertical position and the rotating rod 5 rotates relative to the carrier 4, the outer wall of the drive shaft 92 applies a force to the wall of the oblong hole 91, thereby pushing the front fork assembly 2 to rotate relative to the bottom support frame 1, achieving the steering of the front wheel 31. When the carrier 4 is in the horizontal position and the rotating rod 5 rotates relative to the carrier 4, one end of the drive shaft 92 presses down on the lower side wall of the oblong hole 91, and the other end applies an upward force to the upper side wall of the oblong hole 91. Also, since the drive shaft 92 is disposed within the oblong hole 91 along the left-right direction of the child's bicycle, in this case, the drive shaft 92 drives the front fork assembly 2 to rotate, thereby achieving the steering of the front wheel 31.

[0038] As Figures 2 to 7 , and Figures 11 to 13 shown, the oblong hole 91 has a strip-shaped longitudinal section and has a first end 91a and a second end 91b. The first end 91a is located on the front side of the drive shaft 92, and the second end 91b is located on the rear side of the drive shaft 92. Moreover, the height of the first end 91a from the ground is lower than the height of the second end 91b from the ground. Therefore, when the carrier 4 is in the vertical position, during the rotation of the rotating rod 5 relative to the carrier 4, the drive shaft 92 pushes the side wall of the oblong hole 91 to drive the front fork assembly 2 to rotate. When the carrier 4 is in the horizontal position, during the rotation of the rotating rod 5 relative to the carrier 4, one end of the drive shaft 92 applies a force to the lower side wall of the oblong hole 91, and the other end applies a force to the upper side wall of the oblong hole 91, thereby driving the front fork assembly 2 to rotate. The entire structure is simple, compact, and ingeniously designed.

[0039] As Figure 5 , Figure 12 and Figure 13 shown, the front fork assembly 2 includes a fork body 21 for connecting the front wheel 31. A column 22 is connected to the fork body 21. The oblong hole 91 is disposed through the column 22 along the left-right direction of the child's bicycle. The lower end of the rotating rod 5 is provided with a U-shaped fork 51 into which the upper end of the column 22 can be inserted. The drive shaft 92 is disposed on the U-shaped fork 51. Therefore, when the carrier 4 rotates relative to the bottom support frame 1 in the vertical plane, the U-shaped fork can make way for the upper end of the column 22, enabling the rotating rod 5 to also move together with the carrier 4. During this process, the drive shaft 92 rotates within the oblong hole 91.

[0040] As Figure 3 , Figure 5 , Figure 7 , Figure 12 and Figure 13 shown, the column 22 is a cylindrical tubular structure. Therefore, the oblong holes 91 are divided into two and are symmetric about the column 22 left and right. When the carrier 4 is in the horizontal position and the rotating rod 5 rotates relative to the carrier 4, one end of the drive shaft 92 presses down on the lower side wall of one oblong hole, and the other end of the drive shaft 92 pushes up on the upper side wall of the other oblong hole, making it easier for the front fork assembly 2 to rotate, and making it more convenient for an adult to control the steering of the stroller through the joystick 7. During operation, the adult can make the rotating rod 5 rotate relative to the carrier 4 by moving the joystick 7 left and right along the Figure 13 arrow direction in

[0041] As Figure 3 and Figure 7 shown, when the carrier 4 stays in the vertical position, the central axis 92a of the drive shaft 92 and the rotation axis 2a of the front fork assembly 2 always intersect and are perpendicular to each other. Therefore, when the carrier 4 stays in the vertical position, it is easier for a child to drive the front fork assembly 2 to rotate through the steering handle 6 to achieve front wheel steering.

[0042] As Figure 12 and Figure 13 shown, when the carrier 4 stays in the horizontal position and the front wheel 31 is not steered, the drive shaft 92 is parallel to the horizontal ground 100. When the carrier 4 stays in the horizontal position and the front wheel 31 is steered, one end of the drive shaft 92 is high and the other end is low and is inclined relative to the horizontal ground 100.

[0043] As Figure 1 and Figure 8As shown in the figure, the bottom support frame 1 includes a front support frame 11, a left rear frame 12 and a right rear frame 13 that can rotate relative to the front support frame 11 to open and close. The rear wheels 32 include a left wheel 321 connected to the left rear frame 12 and a right wheel 322 connected to the right rear frame 13. The front fork assembly 2 is connected to the front support frame 11. The left wheel 321 includes a left wheel bracket 3211 and a left wheel body 3212 connected to the left wheel bracket 3211. The left wheel bracket 3211 is rotatably connected to the left rear frame 12 so that the left wheel 321 can rotate from the outside of the left rear frame 12 to the inside of the left rear frame 12. The right wheel 322 includes a right wheel bracket 3221 and a right wheel body 3222 connected to the right wheel bracket 3221. The right wheel bracket 3221 is rotatably connected to the right rear frame 13 so that the right wheel 322 can rotate from the outside of the right rear frame 13 to the inside of the right rear frame 13. When an adult manipulates the child's bicycle through the joystick 7, the left rear frame 12 and the right rear frame 13 can also be opened. At this time, the child's bicycle can also be used as a tricycle, and the support area on the ground is large, making the child's bicycle more stable and ensuring the safety of the child riding. When the child's control ability has been trained and increased, the left rear frame 12 and the right rear frame 13 can be closed, but the left wheel 321 is rotated to the outside of the left rear frame 12 and the right wheel 322 is rotated to the outside of the right rear frame 13 (as shown in Figure 14 and Figure 15 shown). At this time, the support area of the child's bicycle on the ground becomes slightly smaller. The child's bicycle is used as a learning bicycle, which can conveniently further exercise the child's balance control ability.

[0044] As Figure 8 shown, a detachable footrest 33 is also connected to the front wheel 31. The child can move forward by stepping on the footrest 33. When the child's bicycle is used as a scooter, the footrest 33 can be removed.

[0045] As Figure 5 shown, when the carrier 4 stays in the set position, the carrier 4 and the bottom support frame 1 can be locked by a traditional gear and tooth groove locking structure 200, which will not be elaborated here. And the engagement between the joystick 7 and the connection position 8, the engagement between the steering handle 6 and the connection position 8, and the engagement between the steering handle 6 and the insertion position 23 can all adopt a card and card slot engagement structure, which will not be elaborated here either.

Claims

1. A children's vehicle, characterized in that: It includes a bottom support frame (1). A front fork assembly (2) that can rotate relative to it and is used for the steering of the baby carriage is connected to the front side of the bottom support frame (1). A front wheel (31) is connected to the front fork assembly (2). A rear wheel (32) is connected to the rear side of the bottom support frame (1). A carrier frame (4) that can rotate relative to it in the vertical plane is also connected to the front side of the bottom support frame (1). The positions where the carrier frame (4) stays include a vertical position and a horizontal position. A seat part (41) for a child to sit on is provided on the carrier frame (4) when it stays in the horizontal position. A rotating rod (5) that can rotate inside it when the carrier frame (4) stays in either the vertical position or the horizontal position is provided inside the carrier frame (4). A connecting position (8) for connecting a steering handle (6) when the carrier frame (4) is in the vertical position and for connecting a control lever (7) when the carrier frame (4) is in the horizontal position is provided on the rotating rod (5). A plug-in position (23) for connecting the steering handle (6) when the carrier frame (4) moves to the horizontal position is provided on the front fork assembly (2). A transmission structure (9) that can drive the front fork assembly (2) to rotate when the rotating rod (5) rotates relative to the carrier frame (4) so that the front wheel (31) can be steered is also provided between the rotating rod (5) and the front fork assembly (2).

2. The baby carriage according to claim 1, characterized in that: The transmission structure (9) includes an oblong hole (91) provided on the front fork assembly (2). A drive shaft (92) that can rotate in the oblong hole (91) when the carrier frame (4) rotates relative to the bottom support frame (1) and can push the wall of the oblong hole (91) when the rotating rod (5) rotates relative to the carrier frame (4) to make the front fork assembly (2) rotate is provided on the rotating rod (5). The drive shaft (92) is arranged in the oblong hole (91) along the left-right direction of the baby carriage.

3. The baby carriage according to claim 2, wherein: The longitudinal section of the oblong hole (91) is strip-shaped and has a first end (91a) and a second end (91b). The first end (91a) is located on the front side of the drive shaft (92), and the second end (91b) is located on the rear side of the drive shaft (92). And the height of the first end (91a) from the ground is lower than the height of the second end (91b) from the ground.

4. The stroller according to claim 2 or 3, characterized in that: The front fork assembly (2) includes a fork body (21) for connecting the front wheel (31). A column (22) is connected to the fork body (21). The oblong hole (91) is arranged through the column (22) along the left-right direction of the baby carriage. A U-shaped fork (51) into which the upper end of the column (22) can be placed is provided at the lower end of the rotating rod (5). The drive shaft (92) is arranged on the U-shaped fork (51).

5. The baby carriage according to claim 4, characterized in that: The column (22) is a cylindrical tubular structure.

6. The stroller for children according to claim 2 or 3, characterized in that: When the carrier frame (4) stays in the vertical position, the central axis (92a) of the drive shaft (92) and the rotation axis (2a) of the front fork assembly (2) always intersect and are perpendicular to each other.

7. The stroller for children according to claim 2 or 3, characterized in that: When the carrier frame (4) stays in the lateral position and the front wheels (31) are not steered, the drive shaft (92) is parallel to the horizontal ground (100). When the carrier frame (4) stays in the lateral position and the front wheels (31) are steered, one end of the drive shaft (92) is higher and the other end is lower, being inclined relative to the horizontal ground (100).

8. The stroller according to claim 1, characterized in that: The bottom support frame (1) includes a front support frame (11), a left rear frame (12) and a right rear frame (13) that can rotate and open / close relative to the front support frame (11). The rear wheels (32) include a left wheel (321) connected to the left rear frame (12) and a right wheel (322) connected to the right rear frame (13). The front fork assembly (2) is connected to the front support frame (11). The left wheel (321) includes a left wheel bracket (3211) and a left wheel body (3212) connected to the left wheel bracket (3211). The left wheel bracket (3211) is rotatably connected to the left rear frame (12) so that the left wheel (321) can rotate from the outside of the left rear frame (12) to the inside of the left rear frame (12). The right wheel (322) includes a right wheel bracket (3221) and a right wheel body (3222) connected to the right wheel bracket (3221). The right wheel bracket (3221) is rotatably connected to the right rear frame (13) so that the right wheel (322) can rotate from the outside of the right rear frame (13) to the inside of the right rear frame (13).

9. The children's vehicle according to claim 1, wherein: A detachable footrest (33) is also connected to the front wheels (31).

Citation Information

Patent Citations

  • Multifunctional vehicle

    CN208842557U

  • Baby carriage

    CN217396738U