Saw tool

A saw tool, including:

• a rotatable member, a first end portion of the rotatable member being configured to be connected with a power source, a second end portion of the rotatable member including an insertion hole;
• and
• a driven assembly, driven by the rotatable member to be reciprocatably movable relative to the rotatable member,
• wherein the driven assembly includes a first end portion and a second end portion opposite to the first end portion, the first end portion being connected with a saw blade, the second end portion being slidably received within the insertion hole,
• wherein the first end portion of the driven assembly and the second end portion of the driven assembly are detachably connected with each other,
• wherein one of the first end portion of the driven assembly and the second end portion of the driven assembly includes a threaded shaft, and the other of the first end portion of the driven assembly and the second end portion of the driven assembly includes a threaded hole with which the threaded shaft is screwed,
• wherein the rotatable member extends in an axial direction, the rotatable member includes a guide groove, the guide groove is in a form of a close loop around the axial direction, the driven assembly further includes a linkage member, the linkage member includes a main body and at least one slidable member, the first end portion and the second end portion are connected with the main body, and each of the at least one slidable member is disposed on the main body, and
• wherein the driven assembly further includes an insert connector, the insert connector is inserted in the first end portion of the driven assembly and the second end portion of the driven assembly and inserted within the threaded hole and the threaded shaft;
• the insert connector is a set screw or a pin;
• the second end portion of the driven assembly includes at least one grooved recess disposed therearound, each of the at least one grooved recess extends annularly;
• the insertion hole has an axial dimension, the second end portion of the driven assembly is inserted in the insertion hole for a distance larger than ⅓ the axial dimension of the insertion hole;
• the main body is a U-shaped frame, the main body includes a connection section and two arm sections connected to the connection section in interval, the connection section includes a through hole, the threaded shaft is disposed through the through hole, at least one of the two arm sections includes one said slidable member, the main body is disposed around the rotatable member, and the two arm sections are located at two opposite sides of the rotatable member.