The present application relates to the technical field of holder connections, and in particular, to a fixing holder. A binding
assembly includes a
ratchet fastening block, an inner plug is arranged at one end of a
cantilever tube, a recess is formed in an end portion of the inner plug, the
cantilever tube is inserted into the
ratchet fastening block, and a protrusion connected with the recess in an engaged manner is arranged on the
ratchet fastening block. A convex clamp jaw of a clamping
assembly is fixed at one end portion of the
cantilever tube, a screw mandrel connected with the cantilever tube extends from the convex clamp jaw, an oblique web inclined upwards is arranged in an inner cavity of a concave clamp jaw, a T-shaped nut is in threaded connection to an end portion of the screw mandrel, and a lower end of a transverse
flange at an end portion of the T-shaped nut transversely and directly faces an inclined surface of the oblique web. The present application has the beneficial effect that opening / closing and clamping action of the clamping
assembly can be realized only by controlling rotation of the screw mandrel, thus greatly improving operation convenience.