Anillo de fijación con múltiples rodillos

摘要

The invention discloses a snap ring having multiple rollers. The snap ring is configured in such a manner that pressure applied to the snap ring or the multiple rollers from a purse net is distributed to two rollers rather than concentrated on one single roller. A first lateral part and a second lateral part of a framework are formed diagonally so that a contraction line disposed on a first lateral roller or a second lateral roller is easy to move towards an intermediate roller along the first lateral part and the second lateral part. Therefore, the pressure applied to the snap ring or the multiple rollers from the contraction line can be uniformly distributed to the first lateral roller and the intermediate roller or the second lateral roller and the intermediate roller, rather than concentrated on a single roller. Therefore, the service life of the snap ring can be prolonged.