Drilling peeping instrument rod piece convenient to quickly connect and disassemble

According to the drilling peeping instrument rod piece convenient to quickly connect and disassemble, two rod inserting grooves are formed in the front end of a main rod body, and two rear inserting rods are connected to the rear end of the main rod body; an annular limiting groove A is formed in the tail of the front connecting rod, and the tail end of the front connecting rod is coaxially and fixedly connected to the center of the left end face of the main rod body. An axial containing cavity A is formed in the axis of the rear connecting rod A, an outer limiting step A is fixedly connected to the outer side of the middle of the rear connecting rod A, a plurality of steel ball containing grooves A are formed in the tail of the rear connecting rod A, and an outer limiting ring A fixedly sleeves the outer side of the tail end of the rear connecting rod A; a steel ball A is arranged in the steel ball accommodating groove A; the inner side of the rear part of the rear limiting steel cylinder is fixedly connecte