Acupuncture type anti-bird thorn device capable of being expanded and folded

The invention designs an extensible and foldable needling type anti-bird thorn device. The device comprises an operating rod, a needling mounting seat, a needling needle mounting seat, a needling needle, an operating rod, a limiting block, a rotating arm and an adjustable connecting device, the pricking needle mounting seat can realize pricking needle folding through a variable cross section; the adjustable connecting device mainly comprises adjusting screw rods, a middle adjustable rod and a connecting shaft sleeve rod, the two adjusting screw rods and the middle adjustable rod are matched through reverse threads, distance adjustment can be achieved, the two longitudinal needling mounting bases are connected together, and the two longitudinal needling mounting bases can continue to extend in the longitudinal direction; the two transverse needling rotating shafts are connected through the connecting shaft sleeve rod to rotate synchronously and can continue to extend in the transverse direction; the rotating r