The present invention discloses a quick tightener in the field of mechanics, which addresses the problems existing in the conventional tighteners such as inconvenient operation or failure in use under extreme conditions. The quick tightener includes a supp...

The present invention discloses a ratchet wheel for a tightener in the field of mechanics, which addresses the problems existing in the conventional tighteners that the ratchet wheel tends to be shifted to offset or dislocate the reel. The ratchet wheel fo...