Bicycle rim with wind breaking effect, bicycle wheel and bicycle

Abstract

The invention discloses a bicycle wheel rim with a wind breaking effect, a bicycle wheel and a bicycle. The bicycle wheel rim is provided with an annular tire mounting part used for mounting a tire, an annular spoke mounting part used for mounting spokes and two annular side walls fixedly connected with the annular tire mounting part and the annular spoke mounting part; each annular side wall is provided with N pit groups arranged in an annular array mode, and N is a natural number larger than 3; and each concave pit group comprises a plurality of concave pits, the concave pit groups formed by the plurality of concave pits are arranged in a height increasing mode in the first circumferential direction, and the concave pits are arranged in a height increasing mode in the first circumferential direction, so that the wind breaking effect of the rim is improved through the concave pit groups. The wheel rim has the following advantages that when the wheel rim rotates in the riding process, wind power can extend in the direction of the concave pit groups, is tightly attached to the surface of the side wall of the wheel rim and cannot be separated from the surface of the wheel rim too early, large tail end turbulence cannot be generated, resistance is greatly reduced, and the wind breaking effect is improved.

Description

technical field [0001] The invention relates to the technical field of bicycles, in particular to a bicycle rim with a wind-breaking effect, a bicycle wheel and a bicycle. Background technique [0002] Existing bicycle rims include two types of stainless steel and carbon fiber rims. Carbon fiber rim is a kind of carbon fiber impregnated with resin to laminate the shape of the rim into the mold (a shape-setting auxiliary tool during the rolling process of the rim) after a period of high-temperature pressurization and solidification ( A process in which the rolled product undergoes high temperature and high pressure in the mold cavity to make it react and shape). Existing bicycle rims, see figure 1 , with a ring-shaped tire mounting part 1' for mounting tires, a ring-shaped spoke mounting part 2' for mounting spokes 3', and two fixed ring-shaped tire mounting parts 1' and ring-shaped spoke mounting parts 2' Annular side wall 3', the annular side wall 3 is designed with a co...

AI Technical Summary

Problems solved by technology

Existing bicycle rims, see figure 1 , with a ring-shaped tire mounting part 1' for mounting tires, a ring-shaped spoke mounting part 2' for mounting spokes 3', and two fixed ring-shaped tire mounting parts 1' and ring-shaped spoke mounting parts 2' Annular side wall 3', annular side wall 3 adopts ordinary curve design, such as CN US9770944B2, US20200114680A1, CN104070924A, US9770944B2, when riding in the process of crosswind, the end of the wind force will prematurely separate the rim surface, resulting in turbulent flow, such as figure 1 As shown, the resistance increases

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