QUICK-CHANGE STRUCTURE OF MULTI-FUNCTIONAL SAW AND QUICK CHANGE METHOD

摘要

A quick-change structure of a multi-functional saw and a quick change method, comprising a head housing (5), an output shaft (11) and a quick-change device; by means of turning a quick-change toggle (1), then sequentially driving an eccentric block (2), a movable rod (12), and a small cylindrical compression spring and a movable bracket (15) such that a second cylindrical pin (16) at a lower part of the movable bracket (15) moves downward within a guiding groove (23) of a locking leg (20), thus prompting the locking foot (20) to rotate about a third cylindrical pin (18) and close, and after a saw blade (22) is loaded, an upward force being applied such that the locking foot (20) opens and the saw blade is locked, the quick-change device quickly changes the saw blade (22). The quick-change structure of a multi-functional saw may remove and exchange the saw blade (22) simply by means of toggling the quick-change toggle (1) at an upper side of the head housing (5) without using other auxiliary tools, operation being simple and quick.