Anti-rollover child bicycle

Abstract

The utility model discloses an anti-rollover child bicycle which comprises a bicycle frame, a front wheel is arranged on one side of the bottom of the inner side of the bicycle frame, a rear wheel is arranged on the other side of the bottom of the inner side of the bicycle frame, a handlebar is arranged on one side of the top of the bicycle frame, and a cushion is arranged on the other side of the top of the bicycle frame. And a transmission chain wheel is arranged between the bottom of the front end of the frame and the middle position of the front end of the rear wheel. A damping shock absorption assembly is arranged between the inner side of an auxiliary wheel and the bottom of a connecting frame, balance and stability assistance is conducted through the auxiliary wheel when a child rides the bicycle, the auxiliary wheel vibrates up and down under the influence of the uneven road surface when the child travels to the bumpy road surface, meanwhile, a telescopic rod slides up and down at the bottom end of a barrel, and buffering shock absorption is conducted through a damping spring; meanwhile, the telescopic rod is limited in the barrel through the limiting piece, so that vibration borne by the auxiliary wheel when the bicycle travels on a bumpy road surface is reduced, the balance and stability effects of the auxiliary wheel are guaranteed, and safe riding of children is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of children's bicycles, in particular to an anti-rollover children's bicycle. Background Art

[0002] Children's bicycles are suitable for children aged 4-8 years old. They are driven by the rear wheel. However, due to the incomplete development of children, they cannot fully master the riding skills during riding. Therefore, technicians have developed children's bicycles that can prevent rollover to ensure the balance and stability of children when riding bicycles.

[0003] The utility model with authorization announcement number CN214648782U discloses a safety-type children's bicycle that prevents tipping over when turning, which belongs to the technical field of children's bicycles. It includes a fixed frame, a front moving wheel is cooperatively connected to the bottom end of the fixed frame, a mounting frame is fixedly connected to the left side wall of the fixed frame, a basket is detachably connected to the left side wall of the mounting frame, a driving assembly is fixedly connected to the right side of the fixed frame, a shock-absorbing support rod is fixedly connected to the upper surface of the driving assembly, a seat cushion is fixedly connected to the top of the shock-absorbing support rod, a rear moving wheel is cooperatively connected to the right side wall of the driving assembly, and a pedal is cooperatively connected to the left side surface of the driving assembly. The utility model provides a safety-type children's bicycle that prevents tipping over when turning, which can effectively prevent the bicycle from tipping over when turning, thereby improving the safety of the bicycle, and at the same time preventing children from being subjected to large shock effects when riding, thereby effectively improving the comfort of children riding bicycles, and making it convenient for children to use. However, in the application of this technical solution, the auxiliary wheels are connected to the bicycle body through connecting parts. If the auxiliary wheels are lifted up when encountering bumpy roads, it is easy to affect the balance of the bicycle, and there is still a risk of rollover. There is a technical problem that the buffering and shock absorption performance of the bicycle's anti-rollover auxiliary wheels cannot be effectively improved to further ensure the safety of children's riding. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a rollover-resistant children's bicycle, which can solve the problem of connecting the auxiliary wheels to the bicycle body through a connecting piece. If the auxiliary wheels are lifted up when encountering bumpy roads, it is easy to affect the balance of the bicycle, and there is still a risk of rollover. There is a technical problem that the buffering and shock absorption performance of the anti-rollover auxiliary wheels of the bicycle cannot be effectively improved to further ensure the safety of children's riding.

[0005] To solve the above technical problems, the utility model provides the following technical solutions: a rollover-proof children's bicycle comprises a frame, a front wheel is arranged on one side of the bottom inner side of the frame, a rear wheel is arranged on the other side of the bottom inner side of the frame, a handlebar is arranged on one side of the top of the frame, and a seat is arranged on the other side of the top of the frame, a transmission sprocket is arranged between the bottom of the front end of the frame and the middle position of the front end of the rear wheel, pedals are arranged at both ends between the bottom of the front end of the frame and one side of the transmission sprocket, a connecting frame is arranged at both ends of the other side of the bottom of the frame, an auxiliary wheel is arranged at the bottom end of the outer side of the connecting frame, a cylinder is arranged at the bottom end of the connecting frame, a telescopic rod is inserted at the bottom end of the inner side of the cylinder, a limiting plate is arranged in the cylinder at the top end of the telescopic rod, a damping spring is arranged at the top end of the limiting plate, and a protective component is arranged between the inner side of the frame and the outer side of the rear wheel near the top.

[0006] As a preferred technical solution of the utility model, the cylinder is parallel to the side of the auxiliary wheel, and the bottom end of the telescopic rod is fixedly connected to the inner side of the auxiliary wheel.

[0007] As a preferred technical solution of the utility model, the limiting piece is circular, and the top end of the damping spring is fixedly connected to the top end inside the cylinder.

[0008] As a preferred technical solution of the utility model, the auxiliary wheel and the rear wheel are parallel to each other, and the handlebar is in a "T" shape.

[0009] As a preferred technical solution of the utility model, the protection component includes a safety baffle, which is arranged between the inner side of the frame and the outer side of the rear wheel near the top, and side guard plates are arranged at both ends of the inner side of the safety baffle.

[0010] As a preferred technical solution of the utility model, the safety baffle and the side guard plate are in an arc shape, and the cross-section of the safety baffle is in a "U" shape.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] 1. By arranging a damping shock-absorbing assembly between the inner side of the auxiliary wheel and the bottom of the connecting frame, the auxiliary wheel assists the child in balancing and stabilizing the child when riding the bicycle, and when the child rides on a bumpy road, the auxiliary wheel vibrates up and down due to the uneven road surface, and the telescopic rod slides up and down at the bottom of the cylinder body, and the damping spring is used for buffering and shock absorption. At the same time, the telescopic rod is limited in the cylinder body by a limiting plate, thereby reducing the vibration of the auxiliary wheel when the bicycle travels on a bumpy road, ensuring the balance and stability of the auxiliary wheel, and ensuring the safety of children's riding;

[0013] 2. By arranging a protective component between the inner side of the frame and the outer side of the rear wheel near the top, the rear wheel can be isolated by arranging the safety baffle between the frame and the outer side of the rear wheel during use, so as to prevent children from accidentally extending their feet to the rear wheel and being driven to get stuck on the inner side of the frame and getting injured during riding. At the same time, the side guard plate makes the protective surface larger, thereby greatly reducing the probability of accidents when children are riding bicycles, and the feasibility is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a side view stereoscopic structural schematic diagram of the utility model;

[0016] Figure 3 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0017] Figure 4 It is a schematic diagram of the side cross-sectional structure of the cylinder of the utility model.

[0018] Among them: 1. frame; 2. pedals; 3. front wheel; 4. handlebars; 5. seat; 6. safety baffle; 7. rear wheel; 8. auxiliary wheel; 9. connecting frame; 10. side guard plate; 11. transmission sprocket; 12. cylinder; 13. telescopic rod; 14. damping spring; 15. limiting plate. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, purpose and efficacy of the utility model easy to understand, the utility model is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the utility model. The experimental methods in the following embodiments are conventional methods unless otherwise specified, and the materials, reagents, etc. used in the following embodiments are all commercially available unless otherwise specified.

[0020] Example

[0021] Please refer to Figure 1-4As shown, the utility model provides a rollover-proof children's bicycle, comprising a frame 1, a front wheel 3 is arranged on one side of the inner bottom of the frame 1, a rear wheel 7 is arranged on the other side of the inner bottom of the frame 1, a "T"-shaped handlebar 4 is arranged on one side of the top of the frame 1, a seat cushion 5 is arranged on the other side of the top of the frame 1, a transmission sprocket 11 is arranged between the bottom of the front end of the frame 1 and the middle position of the front end of the rear wheel 7, pedals 2 are arranged at both ends between the bottom of the front end of the frame 1 and one side of the transmission sprocket 11, connecting frames 9 are arranged at both ends of the other side of the bottom of the frame 1, and auxiliary wheels 8 are arranged at the bottom end of the outer side of the connecting frame 9, and the auxiliary wheels 8 are parallel to the rear wheel 7. When children ride, the auxiliary wheels 8 help stabilize the bicycle to prevent the bicycle from rolling over.

[0022] As a further implementation of this embodiment, Figure 1-4 As shown, a cylinder 12 is provided at the bottom end of the connecting frame 9, and the cylinder 12 is parallel to the side of the auxiliary wheel 8. A telescopic rod 13 is inserted at the bottom end of the cylinder 12, and the bottom end of the telescopic rod 13 is fixedly connected to the inner side of the auxiliary wheel 8. A circular limiting piece 15 is provided in the cylinder 12 at the top of the telescopic rod 13, and the telescopic rod 13 is limited in the cylinder 12 by the limiting piece 15. A damping spring 14 is provided at the top of the limiting piece 15, and the top of the damping spring 14 is fixedly connected to the top of the cylinder 12. When the auxiliary wheel 8 vibrates up and down due to the uneven road surface, the telescopic rod 13 slides up and down at the bottom end of the cylinder 12, and is buffered and shock-absorbed by the damping spring 14, thereby reducing the vibration of the auxiliary wheel 8 when the bicycle travels on a bumpy road, ensuring the balance and stability of the auxiliary wheel 8, and ensuring the safety of children riding;

[0023] When a child rides on a bumpy road, the auxiliary wheel 8 vibrates up and down due to the uneven road surface, and the telescopic rod 13 slides up and down at the bottom of the cylinder 12, and is buffered and shock-absorbed by the damping spring 14. At the same time, the telescopic rod 13 is limited in the cylinder 12 by the limiting plate 15, thereby reducing the vibration of the auxiliary wheel 8 when the bicycle travels on the bumpy road;

[0024] As a further implementation of this embodiment, Figure 1 and Figure 2 As shown, a protection component is arranged between the inner side of the frame 1 and the outer side of the rear wheel 7 near the top, and the protection component includes an arc-shaped safety baffle 6, which is arranged between the inner side of the frame 1 and the outer side of the rear wheel 7 near the top. The cross section of the safety baffle 6 is "U"-shaped, and the rear wheel 7 is isolated by the safety baffle 6, so as to prevent the child from accidentally extending his feet to the rear wheel 7 during riding and being driven to get stuck on the inner side of the frame 1 and getting injured. The two ends of the inner side of the safety baffle 6 are arranged with arc-shaped side guards 10, and the side guards 10 make the protection surface larger, so as to greatly reduce the probability of accidents when children ride bicycles, and the feasibility is strong;

[0025] When in use, the safety baffle 6 is arranged between the frame 1 and the outer side of the rear wheel 7 to isolate the rear wheel 7, so as to prevent children from accidentally extending their feet to the rear wheel 7 and being driven to get stuck inside the frame 1 and get injured during riding. At the same time, the side guard plate 10 makes the protection surface larger;

[0026] Specific working principle:

[0027] When a child is riding a bicycle, the auxiliary wheel 8 is used to balance and stabilize the bicycle, so as to prevent the child from losing balance and tipping over the bicycle during riding. When the child rides on a bumpy road, the auxiliary wheel 8 is affected by the uneven road surface and vibrates up and down. At the same time, the telescopic rod 13 slides up and down at the bottom of the cylinder 12, and is buffered and shock-absorbing by the damping spring 14. At the same time, the telescopic rod 13 is limited in the cylinder 12 by the limiting plate 15, thereby reducing the vibration of the auxiliary wheel 8 when the bicycle is traveling on a bumpy road, ensuring the balancing and stabilizing effect of the auxiliary wheel, and is separated from the rear wheel 7 by the safety baffle 6, so as to prevent the child from accidentally extending his foot to the rear wheel 7 and being driven to get stuck on the inner side of the frame 1 and getting injured during riding. At the same time, the side guard plate 10 makes the protection surface larger, thereby ensuring that the child can ride safely and stably.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A children's bicycle that can prevent rollover, comprising a frame (1), characterized in that: A front wheel (3) is arranged on one side of the inner bottom of the frame (1), a rear wheel (7) is arranged on the other side of the inner bottom of the frame (1), a handlebar (4) is arranged on one side of the top of the frame (1), a seat cushion (5) is arranged on the other side of the top of the frame (1), a transmission sprocket (11) is arranged between the bottom of the front end of the frame (1) and the middle position of the front end of the rear wheel (7), pedals (2) are arranged at both ends between the bottom of the front end of the frame (1) and one side of the transmission sprocket (11), and the frame (1) A connecting frame (9) is arranged at both ends of the other side of the bottom, an auxiliary wheel (8) is arranged at the bottom end of the outer side of the connecting frame (9), a cylinder (12) is arranged at the bottom end of the connecting frame (9), a telescopic rod (13) is inserted at the bottom end of the cylinder (12), a limiting plate (15) is arranged in the cylinder (12) at the top end of the telescopic rod (13), a damping spring (14) is arranged at the top end of the limiting plate (15), and a protective component is arranged between the inner side of the frame (1) and the outer side of the rear wheel (7) near the top.

2. The anti-rollover bicycle for children according to claim 1, characterized in that: The cylinder (12) is parallel to the side of the auxiliary wheel (8), and the bottom end of the telescopic rod (13) is fixedly connected to the inner side of the auxiliary wheel (8).

3. The anti-rollover bicycle for children according to claim 1, characterized in that: The limiting piece (15) is circular, and the top end of the damping spring (14) is fixedly connected to the top end inside the cylinder (12).

4. The anti-rollover bicycle for children according to claim 1, characterized in that: The auxiliary wheel (8) and the rear wheel (7) are parallel to each other, and the handlebar (4) is in a "T" shape.

5. The anti-rollover bicycle for children according to claim 1, characterized in that: The protection component comprises a safety baffle (6), wherein the safety baffle (6) is arranged between the inner side of the frame (1) and the outer side of the rear wheel (7) near the top, and side guard plates (10) are arranged at both ends of the inner side of the safety baffle (6).

6. The anti-rollover bicycle for children according to claim 5, characterized in that: The safety baffle (6) and the side guard plate (10) are in an arc shape, and the cross section of the safety baffle (6) is in a "U" shape.

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