Pressure dispersion-type recoverable prestressed anchor

The invention relates to a pressure dispersion-type recoverable prestressed anchor. The pressure dispersion-type recoverable prestressed anchor comprises a first anchor and at least one second anchor, wherein the first anchor is composed of a first outer anchor body, an inner anchor post, an electric heating device and clamping pieces, and the inner anchor post is made of low-melting-point materials; the at least one second anchor is composed of a second outer anchor body, an inner anchor post, an electric heating device and clamping pieces, the second outer anchor body is provided with a wire hole for stranded steel wires to penetrate as well as a grouting pipe hole for a grouting pipe to penetrate. A first stranded steel wire penetrates the first outer anchor body and the clamping pieces; the first stranded steel wire and a second stranded steel wire penetrate the second outer anchor body, the first stranded steel wire penetrates the wire hole, and the second stranded steel wire penetrates the clamping pieces. The pressure dispersion-type recoverable prestressed anchor can conveniently and easily recover the stranded steel wires; during application, the stranded steel wires are divided into two or more and locked by different anchors, so that tension and pressure can be dispersed onto different anchors, the anchors can be uniformly stressed, and further the stranded steel wires are less prone to loosening, and the anchors can reduce the stress and avoid damage.