Masonry chisel sheath, masonry chisel and quick disassembly and assembly method of masonry chisel

Abstract

The invention relates to a masonry chisel sheath, a masonry chisel and a quick disassembly and assembly method of the masonry chisel. The masonry chisel sheath includes a hand protecting plate and a handle. The hand protecting plate is installed on the handle, and the handle is provided with a mounting hole for inserting a chisel rod of the masonry chisel. The handle is divided into two parts which are a left half handle and a right half handle. The left half handle and the right half handle are connected together by a fastening sleeve to form the handle. The masonry chisel includes the chiselrod of the masonry chisel, a chisel head is arranged at the lower end of the chisel rod of the masonry chisel, and the masonry chisel sheath is installed at the upper end of the chisel rod of the masonry chisel. A circle of concave positioning groove is machined in the chisel rod of the masonry chisel in the circumference direction of the chisel rod. A left half mounting hole of the left half handle is internally provided with a positioning protrusion matched with the concave positioning groove and playing an axial positioning role on the chisel rod of the masonry chisel. The rapid disassembly, assembly and replacement of the masonry chisel sheath and the chisel rod of the masonry chisel are realized, from the perspective of a user, all the masonry chisels with the same shapes of the chisel rods of the masonry chisels need only be equipped with one masonry chisel sheath, and the cost is saved.

Description

Technical field [0001] The invention relates to the field of hardware tools, and in particular to a stone chisel sheath, a stone chisel and a quick disassembly and assembly method thereof. Background technique [0002] A masonry chisel is a hand tool widely used in construction fields such as stone mining. It is used to strike the stone with the cooperation of a hammer. It is generally necessary to hold the masonry chisel in order to prevent it from being hit. For example, a masonry chisel sheath is often installed on the upper part of the chisel handle of a masonry chisel to protect the hands of workers. For example, a patent with an authorized announcement number CN206614700U discloses a multifunctional masonry chisel for construction. The chisel includes a handle, a hand guard, a metal chisel shaft and a chisel head. The handle is installed on the metal chisel shaft and the two are often not easy to separate and quick change. The hand guard is installed on the handle, and the ...

AI Technical Summary

Problems solved by technology

[0002] Masonry chisel is a kind of hand tool widely used in stone mining and other construction fields. It is used to strike stones with the cooperation of a hammer. In the process of use, it is generally necessary to hold the masonry chisel by hand. In order to prevent it from hitting the hand A masonry chisel sheath is often installed on the upper part of the chisel handle of the masonry chisel, which has a certain protective effect on the hands of the workers. For example, a patent with the authorized announcement number of CN206614700U discloses a multifunctional masonry chisel for construction. The masonry chisel The chisel includes a handle, a hand guard, a metal chisel rod and a chisel head. The handle is mounted on the metal chisel rod and the two are often not easy to separate. The detachable replacement design of the chisel head and the metal chisel rod in this patent meets the convenience of replacing the chisel head to realize processing of different materials, but the connection strength between the chisel head and the metal chisel rod is often not guaranteed, which affects the normal operation of the masonry chisel use

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