Clutch sleeve of bicycle mini-sized transmission

Abstract

The clutch sleeve of the bicycle miniature gearbox of the present invention relates to a ratchet. A clutch sleeve for a bicycle miniature gearbox, characterized in that: a clutch ratchet base ring is provided at one end of the sleeve, a clutch ratchet is provided on the clutch ratchet base ring, and a clutch ratchet is provided on the inner hole of the sleeve. spline groove. The clutch sleeve of the bicycle miniature gearbox, the clutch ratchet can be located on the inside of the clutch ratchet base ring, the clutch ratchet is 6-12 teeth, and the clutch ratchet is evenly distributed on the clutch ratchet On the base ring, the outer diameter of the sleeve is 26 mm, the outer diameter of the clutch ratchet base ring is 32 mm, the total length of the sleeve and the clutch ratchet base ring is 16‑18 mm, and the teeth of the clutch ratchet The height is 2 mm. In the present invention, the clutch ratchet and the basic ring of the clutch ratchet are integrated, and the strength of the clutch ratchet is high, which solves the perennial problem that the clutch ratchet often breaks, ensures the reliability of the clutch, and has popularization value.

Description

technical field [0001] The invention relates to a ratchet, and more specifically relates to a clutch sleeve of a bicycle miniature gearbox. Background technique [0002] At present, the speed regulation of bicycles mostly adopts different pairs of chain discs on the center shaft and chainrings on the rear axle for speed regulation. The transmission speed ratio range is small, and the transmission speed ratio range is generally between 1:1 and 1:4. In order to improve the speed change effect of the bicycle, I have invented some patents for the central shaft transmission of bicycles, such as, the title is "Bicycle with Micro Box Transmission on the Central Shaft", the patent number is ZL201010518569.9, and the patent application date is October 25, 2010 date; the name is "Bicycle Miniature Box Transmission", the patent number is ZL201010518578.8, and the patent application date is October 25, 2010; these inventions have expanded the range of bicycle transmission, and its low-s...

AI Technical Summary

Problems solved by technology

However, during production and use, it was found that the clutch ratchet teeth of the clutch sleeve of the original bicycle micro-gearbox were in the shape of a cantilever beam, which was particularly easy to break the teeth. Even if the material of the clutch sleeve was improved, the effect would be minimal. , and seriously affect the clutch effect, the clutch ratchet tooth breakage of the clutch sleeve has become a difficult problem that has not been overcome for more than four years. Therefore, the structure of the clutch sleeve of the bicycle micro-transmission needs to be improved

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