Abstract: A detachable handle mounting structure includes a handle, a sleeve fixedly provided at one end of the handle for receiving a tool, a socket, which is fixedly provided at a recessed portion on the periphery of the sleeve and has an accommodation open chamber and a bottom center hole cut through the periphery wall of the sleeve, a plug partially inserted into the bottom center hole of the socket and vertically movable in the bottom center hole of the socket between a locking position where the plug is partially projecting into the inside of the sleeve to lock a tool to the sleeve and an unlocking position where the plug is moved away from the inside of the sleeve to unlock the tool that is inserted into the sleeve, and a rotary knob, which has a coupling member coupled to the plug and is rotatable to move the plug vertically in the bottom center hole of the socket between the locking position and the unlocking position.

Abstract: A lopper includes a slender rod and a pruning means mounted on a top of the rod. The slender rod includes an inner tube and an outer tube telescoped mutually such that the inner tube is shiftable in the outer tube for changing the length it jutting out from the outer tube. An extension-control unit is provided at the border region between the inner tube and the outer tube for positioning the inner tube. A fist actuating unit and a second actuating unit are provided at the outer surface of the outer tube. The fist and second actuating units are connected with the pruning means through a first rope, a second rope and a third rope so that when a user pulls the first or second actuating unit, a shear assembly of the pruning means can be closed to cut branches and leaves of plants.

Abstract: A pair of effort-saving shears primarily comprises: a first shear element having a combining portion with a pivot hole and a shear element combining hole thereon, and a first handle further attached to the first shear element; a second shear element having combining portion with a shear element combining hole; a handle shaft axially positioned in a second handle and having a combining portion at one end; an effort-saving transmission assembly including a toothed block fixed on one side of the combining portion of the handle shaft, and a toothed hole provided on the combining portion of the second shear element, wherein the toothed hole enclose and partially engage the toothed block by parts of the teeth thereof; and wherein the combining portion of the first shear element overlaps the combining portion of the second shear element; a pivot member, piercing through said pivot holes to be placed between the toothed hole and the toothed block; and a shear element combining pin piercing through said shear element