Patent ID: 9707675
Date: 2017-07-18
CPC Classifications: B25C,B25F,F16F

Claim:
1. A stress relaxation device for the nail gun, wherein said nail gun comprising: a shell, a cylinder disposed in said shell, a piston disposed in said cylinder, comprising a piston rod and a piston disc, a gear frame coated on a front segment of a cylinder exterior, and a nail tube, wherein said nail gun also comprises a stress relaxation device disposed in said cylinder; said stress relaxation device comprises a first stress relaxation ring, a second stress relaxation ring and a stress relaxation unit; said first stress relaxation ring and said second stress relaxation ring are both connected with said stress relaxation unit and not in relative movement to said stress relaxation unit; wherein said stress relaxation unit is integrally molded by a connecting disc, a connecting tube and a connecting portion located therebetween; a rear end of said connecting disc is internally provided with an accommodating space; and said connecting portion is provided with an annular groove.