Height-adjustable children bicycle

Abstract

The invention relates to a height-adjustable children bicycle, which comprises a front fork, a saddle, a bicycle frame part, a conversion block and a driving part, wherein a middle pipe comprises an upper middle part and a lower middle pipe, the upper end of the upper middle pipe is fixedly connected with the saddle, the lower end of the upper middle pipe extends into the lower middle pipe, and the upper middle pipe and the lower middle pipe are locked by a locking mechanism. The height-adjustable children bicycle has the advantages that a scooter and the children bicycle can be combined; when the children bicycle is combined, the driving part is arranged at the lower end of the lower middle pipe, a 2.5-year-old child can use the children bicycle as the children scooter to slowly exercise, and control the balance feel of the vehicle skiing; along with the growth of the child and the controlling of the balance feel of the vehicle, by (1) turning over the bicycle frame, (2) adjusting the direction of the conversion block, (3) adjusting the heights of the front fork and the saddle, and (4) additionally arranging the driving part, one true children bicycle is combined, and is continued to use until the child grows up to 7-year-old.

Description

technical field [0001] The invention relates to a children's bicycle, in particular to a height-changeable children's bicycle that can be assembled into a slide car used in childhood and can be assembled into a bicycle used by children. Background technique [0002] At present, children's bicycle frames on the market are all designed with traditional thinking, fixed models, and fixed dimensions, and are made of ferrous metals, non-ferrous metals, or carbon fiber composite materials. The above products have the following problems in the manufacturing process and finished products: [0003] 1. The entire vehicle is limited by the frame, and cannot be expanded and adjusted. Consumers are always hesitant when purchasing a variety of specifications, and there are problems with large or small sizes. unable to grow larger; [0004] 2. The frame parts are all made of "non-renewable resources"; [0005] 3. Waste water, waste gas, radiation and a large amount of carbon emissions are...

AI Technical Summary

Problems solved by technology

[0005] 3. Waste water, waste gas, radiation and a large amount of carbon emissions are generated during the processing and manufacturing process, polluting the environment;

[0006] 4. From raw materials to finished products, the process is complicated, a lot of equipment is used, and the production process is complicated, resulting in high costs

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