Preparation method of adjusting type bicycle stand beam

Abstract

The invention provides a preparation method of an adjusting type bicycle stand beam. The adjusting type bicycle stand beam comprises a vertical pipe, and a movable sleeve pipe connected to the vertical pipe in a sleeving manner, wherein an annular sliding stopping block is arranged at the top of the vertical pipe; the movable sleeve pipe comprises a first sleeve pipe and a second sleeve pipe; the first sleeve is located at the upper part of the movable sleeve pipe, and the radius of the first sleeve pipe is equal to the inner radius of the sliding stopping block; the second sleeve pipe is located at the lower part of the movable sleeve pipe, and the radius of the second sleeve pipe is equal to the radius of the inner circle of the vertical pipe; a supporting plate is arranged at the lower part of the vertical pipe; first springs are arranged between a bottom wall of the movable sleeve pipe and the supporting plate; a guide pillar is arranged in each of the first springs; circular grooves are formed in the top of the supporting plate; and each of the guide pillars extends into the corresponding circular groove. According to the preparation method of the adjusting type bicycle stand beam disclosed by the invention, the stand beam can automatically adjust the height of a bicycle seat according to the changes of road conditions, and violent collisions between the bicycle seat and a human body on a bumping road section are reduced by the elastic effect, so that the driving comfortableness is improved.

Description

technical field [0001] The invention relates to the technical field of bicycle accessories, in particular to a preparation method of an adjustable bicycle vertical beam. Background technique [0002] In order to ensure the stability of the seat, the bushing is generally fixed in the vertical tube by fastening bolts. When the height of the seat needs to be adjusted, the fastening bolt needs to be manually rotated. If it cannot be adjusted in time, the seat often collides with the human body, which brings discomfort to the rider; people set springs in the casing to relieve the discomfort caused by the seat colliding with the human body on bumpy roads, but due to the limited rebound sensitivity of the spring, And the movement setting between the parts in the standpipe is also relatively rigid, which will also bring discomfort to the people. Contents of the invention [0003] In order to solve the above-mentioned technical problems, the technical solution provided by the pres...

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Problems solved by technology

[0002] In order to ensure the stability of the seat, the bushing is generally fixed in the vertical tube by fastening bolts. When the height of the seat needs to be adjusted, the fastening bolt needs to be manually rotated. If it cannot be adjusted in time, the seat often collides with the human body, which brings discomfort to the rider; people set springs in the casing to relieve the discomfort caused by the seat colliding with the human body on bumpy roads, but due to the limited rebound sensitivity of the spring, Moreover, the movement setting between the parts in the standpipe is also relatively rigid, which will also bring discomfort to people.

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