Connecting structure-contained connection device of electric tool for connection with angle adjuster

摘要

A connecting device may have a tooth-shaped jacket, a locking body internally of the tooth-shaped jacket, a plurality of balls, a spring, and a spring base. The locking body has a rear end with an annular groove and has a neck with a plurality of spherical recesses containing the balls. Radial positioning between the locking body and the tooth-shaped jacket is realized through the balls. The spring is connected between the tooth-shaped jacket and the spring base and axial positioning between the spring base and the locking body is realized through a snap ring in the annular groove.

主权项

1. A connecting device for connecting an electric tool with an angle adjuster, said device comprising:
a tooth-shaped jacket having a front end which includes an internal tooth profile which is mateable with a mating tooth profile of the electric tool; a locking body inside said tooth-shaped jacket, said locking body including a plurality of recesses emplaced around a circumference of said locking body, said locking body being having a rear end which connects to the angle adjuster; a plurality of balls; disposed radially between said recesses and said tooth shaped jacket, each said balls being received in a respective one of said recesses; a spring base mounted to said locking body; a spring disposed between said spring base and an inside surface of said tooth-shaped jacket; said tooth-shaped jacket being axially movable relative to said locking body to axially and rotationally connect the angle adjuster and the electric tool by moving said tooth-shaped jacket axially relative to said locking body in a first axial direction to cause said spring to push on said balls by way of said tooth-shaped jacket to forcibly extrude said balls from said recesses to achieve axial restraint between the angle adjuster and the electric tool and cause said internal tooth profile of said tooth-shaped jacket to mate with the mating tooth profile of the electric tool to prevent relative rotational movement between the angle adjuster and the electric tool; said tooth-shaped jacket being axially movable relative to said locking body to axially and rotationally disconnect the angle adjuster from the electric tool by moving said tooth-shaped jacket axially relative to said locking body in a second axial direction to cause said axial restraint to be relieved by relieving said pushing on said balls and to cause said internal tooth profile of said tooth-shaped jacket to unmate from the mating tooth profile of the electric tool to permit relative rotational movement between the angle adjuster and the electric tool.