117results about How to "Achieve clamping" patented technology

Disclosed is a fastening and straightening apparatus for transplanted trees. The apparatus includes an outer hoop, inner hoops and support legs. A plurality of the inner hoops are arranged in the outer hoop. The inner hoops are arc metal plates. A connecting rod is arranged on each inner hoop. The connecting rods are arranged on the outer hoop in a passing manner. Second ear plates are arranged onthe outer wall of the outer hoop. Each support leg is connected to the corresponding second ear plate through a third fixing bolt. The outer hoop consists of two semi-circular annular metal plates. Afirst ear plate is arranged on one end of the each of the two semi-circular annular metal plates. Second fixing bolts pass through the corresponding two ear plates to fix the two semi-circular annular metal plates. The other ends of the two semi-circular annular metal plates are hinged to each other by hinges. The connecting rods are threaded rods. A first fixing bolt is arrange on one section, located on the outer side of the outer hoop, of each connecting rod. Each third fixing bolt is a bolt with a smooth section. Through the adoption of the structure, the stable fastening and straightening work of the transplanted trees is realized, and skewing and collapsing problems of the trees happening in the tree growth process can be effectively avoided.