Child bicycle based on circular base

Abstract

The utility model discloses a children's bicycle based on a circular base, which belongs to the technical field of children's bicycles, and comprises a circular ring protection main frame, an arc-shaped support curved beam, an arc-shaped support plate, an arc-shaped support plate, an arc-shaped support plate and an arc-shaped support plate, the arc-shaped support curved beam is arranged in the middle of the circular ring protection main frame; the portions, located on the two opposite sides of the arc-shaped supporting curved beam, of the circular ring protection main frame are bent downwards to form supporting parts, and supporting wheels are hinged to the two supporting parts. The handle frame is hinged to one end of the arc-shaped supporting curved beam, a driving wheel is hinged to the handle frame, and pedals are connected to the two ends of the driving wheel; the circular ring protection main frame is designed to be circular ring-shaped and has a protection effect on the periphery of a riding child, the supporting part which is bent downwards, the supporting wheel and the driven wheel have a structural supporting effect, the supporting part is bent downwards, so that the child can get on and off the bicycle conveniently, sit on the saddle, hold the handle frame with hands and tread the pedals in a crossed mode to drive the driving wheel to rotate for riding, and riding is facilitated. The overall structure is stable and the protection effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of children's bicycle technology, and in particular relates to a children's bicycle based on a circular base. Background Technology

[0002] Children's bicycles are bicycles specifically designed for children to ride, and they come in two types: front-wheel drive and rear-wheel drive.

[0003] Chinese Patent (CN202121758732.9) discloses a children's bicycle, including a main frame, a front wheel, a rear wheel, and auxiliary wheel assemblies located on the left and right sides of the rear wheel. The auxiliary wheel assembly includes an auxiliary wheel frame and auxiliary wheels rotatably mounted on the auxiliary wheel frame. The auxiliary wheel frame is rotatably connected to the main frame. The children's bicycle also includes a locking mechanism for locking the positions of the auxiliary wheel frame and the main frame, and an unlocking mechanism for unlocking the locking mechanism. The locking mechanism includes a locking member slidably mounted on one of the two components, the auxiliary wheel frame and the main frame. The locking member can engage or disengage with the other component of the two components. The unlocking mechanism includes an unlocking member slidably mounted on either the auxiliary wheel frame or the main frame. The unlocking member is fixedly connected to or engages with the locking member.

[0004] Currently, when children ride bicycles at home, there are often obstacles such as furniture around them, and existing children's bicycles cannot protect children and cannot prevent them from bumping into things while riding. Utility Model Content

[0005] The purpose of this utility model is to provide a children's bicycle based on a circular base in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a children's bicycle based on a circular base, comprising:

[0007] The main protective frame is circular in shape. An arc-shaped support beam is provided in the middle of the main protective frame. The parts of the main protective frame located on opposite sides of the arc-shaped support beam bend downward to form support parts. Support wheels are hinged to both support parts.

[0008] A handle frame is hinged to one end of the arc-shaped support beam, and a drive wheel is hinged to the handle frame. Both ends of the drive wheel are connected to foot pedals.

[0009] A support frame is fixedly connected to the other end of the arc-shaped support beam, and a driven wheel is hinged to the support frame.

[0010] The seat is slidably connected to the curved support beam.

[0011] As a further description of the above technical solution:

[0012] The driving wheel and the driven wheel have the same diameter and their axes are parallel.

[0013] As a further description of the above technical solution:

[0014] The two support wheels have the same diameter and their axes coincide, and the axes of the support wheels are parallel to the axes of the drive wheel.

[0015] As a further description of the above technical solution:

[0016] The top surface of the arc-shaped support beam is provided with a sliding groove, and the seat is slidably connected in the sliding groove.

[0017] As a further description of the above technical solution:

[0018] The side of the arc-shaped support beam is provided with a clearance groove that connects to the slide groove, and the fixing bolt passes through the clearance groove and is screwed to the seat.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] In this invention, the circular protective frame is designed in a circular shape, which provides protection for children riding bicycles. The downward-curving support, support wheel, and driven wheel provide structural support. The downward curve of the support makes it easier for children to get on and off the bicycle. When sitting on the seat, they can hold the handlebars and pedal in a crisscross motion to drive the drive wheel to rotate and ride. The overall structure is stable and provides good protection. Attached Figure Description

[0021] Figure 1 A schematic diagram of the overall structure of a children's bicycle based on a circular base. Figure 1 .

[0022] Figure 2 A schematic diagram of the overall structure of a children's bicycle based on a circular base. Figure 2 .

[0023] Figure 3 This is a side view of a children's bicycle based on a circular base.

[0024] Figure 4 This is a top view of a children's bicycle based on a circular base.

[0025] Legend:

[0026] 1. Circular protective main frame; 2. Arc-shaped support beam; 3. Support section; 4. Support wheel; 5. Handle frame; 6. Drive wheel; 7. Foot pedal; 8. Support frame; 9. Driven wheel; 10. Seat; 11. Slide groove; 12. Clearance groove; 13. Fixing bolt. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-4 This utility model provides a technical solution: a children's bicycle based on a circular base, comprising:

[0029] The main protective frame 1 is circular in shape. An arc-shaped support beam 2 is provided in the middle of the main protective frame 1. The parts of the main protective frame 1 located on opposite sides of the arc-shaped support beam 2 are bent downward to form support parts 3. Support wheels 4 are hinged to both support parts 3.

[0030] Handle frame 5 is hinged to one end of the arc-shaped support beam 2. A drive wheel 6 is hinged to the handle frame 5, and foot pedals 7 are connected to both ends of the drive wheel 6.

[0031] A support frame 8 is fixedly connected to the other end of the arc-shaped support beam 2, and a driven wheel 9 is hinged on the support frame 8;

[0032] The seat 10 is slidably connected to the arc-shaped support beam 2;

[0033] The driving wheel 6 and the driven wheel 9 have the same diameter and their axes are parallel;

[0034] The two support wheels 4 have the same diameter and their axes coincide, and the axis of the support wheel 4 is parallel to the axis of the drive wheel 6;

[0035] The top surface of the arc-shaped support beam 2 is provided with a sliding groove 11, and the seat 10 is slidably connected in the sliding groove 11. The side surface of the arc-shaped support beam 2 is provided with a clearance groove 12 that communicates with the sliding groove 11. The fixing bolt 13 passes through the clearance groove 12 and is screwed onto the seat 10, pushing the seat 10 to slide in the sliding groove 11. After adjustment, tightening the fixing bolt 13 can lock the seat 10 on the arc-shaped support beam 2, thereby facilitating the adjustment of the position of the seat 10.

[0036] Working principle: The circular protective main frame 1 is designed in a circular shape, which provides protection for the child riding. The downward-curved support part 3, support wheel 4 and driven wheel 9 provide structural support. The downward curve of the support part 3 makes it easier for the child to get on and off the bike. When sitting on the seat 10, the child holds the handlebar frame 5 and pedals the pedals 7 in a cross manner to drive the drive wheel 6 to rotate and ride. The overall structure is stable and has a good protective effect. Push the seat 10 to slide in the slide groove 11. After adjustment, tighten the fixing bolt 13 to lock the seat 10 on the arc-shaped support beam 2, which makes it easy to adjust the position of the seat 10.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A circular base based children's bicycle characterised in that: Include: The circular ring protection main frame (1) is annular, the middle part of the circular ring protection main frame (1) is provided with arc-shaped support curved beam (2), the part of the circular ring protection main frame (1) on the opposite side of the arc-shaped support curved beam (2) is bent downward to form support part (3), two support parts (3) are all hinged with support wheel (4); Handle frame (5) is hinged to one end of the arc-shaped support curved beam (2), the handle frame (5) is hinged with driving wheel (6), both ends of the driving wheel (6) are connected with foot pedal (7); Support frame (8) is fixedly connected to the other end of the arc-shaped support curved beam (2), the support frame (8) is hinged with driven wheel (9); The seat (10) is slidingly connected to the arc-shaped support curved beam (2).

2. A circular base children's bicycle according to claim 1, wherein, The diameters of the driving wheel (6) and the driven wheel (9) are the same and the shafts are parallel.

3. A circular base children's bicycle as claimed in claim 2, wherein, The diameters of the two support wheels (4) are the same and the shafts coincide, the shafts of the support wheels (4) are parallel to the shaft of the driving wheel (6).

4. A circular base children's bicycle as claimed in claim 3, wherein, The top surface of the arc-shaped support curved beam (2) is provided with a sliding groove (11), and the seat (10) is slidingly connected in the sliding groove (11).

5. A circular base children's bicycle as claimed in claim 4 wherein, The side surface of the arc-shaped support curved beam (2) is provided with an avoidance slot (12) communicating with the sliding groove (11), and the fixed bolt (13) penetrates the avoidance slot (12) and screws the seat (10).

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