Tensioner

The utility model provides a tensioner, and belongs to the technical field of logistics transportation equipment. The tensioner solves the problem that an existing tensioner is troublesome to operate. The tensioner comprises a frame body, a handle and a non-return baffle connected to the frame body, the frame body comprises two opposite side plates, a reel used for winding a binding belt is connected between the two side plates, the reel is sleeved with a ratchet wheel synchronously rotating with the reel, the handle is connected with the reel and can drive the ratchet wheel to rotate, and the non-return baffle is connected with the handle. The non-return face of ratchets on the ratchet wheel can abut against the top face of the non-return baffle to prevent the ratchet wheel from rotating in the belt loosening direction, a belt supporting strip is further connected between the bottoms of the front ends of the two side plates, a channel for a binding belt to penetrate through is formed between the belt support