Recyclable expansion anchor rod and construction method thereof

The invention relates to a recoverable expansion anchor rod and a construction method thereof, and belongs to the technical field of building equipment.The recoverable expansion anchor rod comprises an anchor rod body, and the interior of the anchor rod body is hollow to form a pouring cavity; the lower end face is connected with a connecting pipe which communicates with the pouring cavity. A containing groove is formed in the circumferential side wall of the anchor rod; the connecting pipe penetrates through the upper surface of the drill bit and is in threaded connection with the drill bit; the cleaning assembly is connected with the anchor rod, located in the pouring cavity and used for cleaning the inner wall of the anchor rod; and the expanding body assembly is connected with the anchor rod, located in the containing groove and used for expanding holes in the inserting position of the anchor rod, and the effects that workers can use the anchor rod conveniently, and meanwhile the anchor rod can be recycle