Connection apparatus for rear-oblique pull rod of miniature tower-type hoisting machinery

A connection apparatus for a rear-oblique pull rod of a miniature tower-type hoisting machinery comprises a tower cap, a balance arm and a rear-oblique pull rod; the end part of the balance arm is hinged to the bottom of the tower cap; the rear-oblique pull rod is connected with the other end of the balance arm and the top of the tower cap; and the balance arm and the rear-oblique pull rod are in hinged connection via a rotatable connection assembly. The beneficial effects comprise that a flexible reliable connection apparatus is provided for self mounting, dismounting of the balance arm of the miniature tower-type hoisting machinery, and an original fixed connection hinging point is changed into a rotatable connection hinging point, so that the balance arm, and mechanism and structural parts above the balance arm can be successfully pulled up or vertically put down through the rear-oblique pull rod, and workload of mounting and dismounting of the hoisting machinery or under transportation operating condition