Abstract: A caulking gun handle and a caulking gun are provided. A caulking amount adjusting assembly is mounted on a movable handle of the caulking gun; the caulking amount adjusting assembly comprises a driving shaft and a driving shaft positioning member; portions at two sides of a mounting groove are each formed as a handle mounting portion; a driving protrusion and first and second positioning recesses are provided on a peripheral surface of the driving shaft, the driving shaft can slide left and right with respect to the two handle mounting portions, so that in a first workstation, an end portion of the driving shaft positioning member located in the driving shaft mounting hole is engaged in the first positioning recess, and in a second workstation, the end portion of the driving shaft positioning member located in the driving shaft mounting hole is engaged in the second positioning recess.

Abstract: The present disclosure provides a glue-saving mechanism, a glue gun handle, a glue gun and a use method thereof, and relates to the technical field of gluing tools, wherein the glue-saving mechanism is applicable to the glue gun and includes a body and a locking piece; a top end of the locking piece is connected with a rear end of the body, the locking piece is provided with a assembling hole for glue gun ejector rod penetrating the locking piece, and the angle between a front surface of the locking piece and the horizontal direction is greater than 0° and smaller than 90° when a length extension direction of a glue gun ejector rod in a working condition that the glue gun ejector rod is assembled to the glue gun is regarded as a horizontal direction; a guiding structure is provided on the body, and the guiding structure is used for guiding the body to slide forward and backward relative to a glue gun handle in a working condition that the glue-saving mechanism is assembled at a top end of the glue gun handle;