Knob type rope adjuster

Abstract

The present disclosure provides a knob type rope adjuster, includes a base, a rope winding disc, a knob, and an unlocking button; the rope winding disc used for winding an adjustment rope is rotatably installed in the base; the knob is installed on the base in an unidirectional rotation mode; the knob is combined with the rope winding disc to drive the rope winding disc to rotate via the knob, thereby winding and locking the adjustment rope; the unlocking button is connected to the rope winding disc and passes through the knob, thereby switching combination or separation of the knob and the rope winding disc; the knob is separated from the rope winding disc, so that the rope winding disc is arranged to rotate in a direction opposite to the winding direction, thereby loosening the adjustment rope, the adjustment rope remains locked on the rope winding disc to avoid loosening.

What is claimed is: 
     
         1 . A knob type rope adjuster, comprising a base, a rope winding disc, a knob, and an unlocking button; the rope winding disc used for winding an adjustment rope is rotatably installed in the base; the knob is installed on the base in an unidirectional rotation mode; the knob is combined with the rope winding disc to drive the rope winding disc to rotate via the knob, thereby winding and locking the adjustment rope; the unlocking button is connected to the rope winding disc and passes through the knob, thereby switching combination or separation of the knob and the rope winding disc; and the knob is separated from the rope winding disc, so that the rope winding disc is arranged to rotate in a direction opposite to the winding direction, thereby loosening the adjustment rope. 
     
     
         2 . The knob type rope adjuster according to  claim 1 , wherein the base includes a removably installed bottom cover and a fixed barrel, and the rope winding disk is rotatably installed in the fixed barrel. 
     
     
         3 . The knob type rope adjuster according to  claim 1 , wherein the rope winding disc includes a barrel body, and a first disc body and a second disc body connected to both ends of the barrel body, respectively; and the first disc body, the second disc body and the barrel body form an annular rope winding space for the adjustment rope to wrap around. 
     
     
         4 . The knob type rope adjuster according to  claim 3 , wherein the first disc body is installed close to the knob, and a driven gear is formed on the first disc body, and a driving gear engaged with the driven gear is formed on the knob. 
     
     
         5 . The knob type rope adjuster according to  claim 1 , wherein an open end of the knob is provided with a plurality of hooks, and an outer peripheral surface of the base is provided with a snap ring, the knob snaps into the snap ring of the base via the plurality of hooks, so that the knob is arranged to be rotatably installed on the base. 
     
     
         6 . The knob type rope adjuster according to  claim 1 , wherein a ratchet is provided on an axis center inside the knob, a plurality of elastic pawls are formed on an end of the base that is inserted into the knob, the plurality of elastic pawls are engaged with the ratchet, and the plurality of elastic pawls cooperate with the ratchet to rotate the knob in one direction. 
     
     
         7 . The knob type rope adjuster according to  claim 1 , wherein the unlocking button includes a button body and an elastic member; and the knob is provided with a button hole, the button body is arranged to be movably inserted into the button hole, the button body is connected to an axis center of the rope winding disc, and the elastic member is installed in the base and elastically presses against both the rope winding disc and a bottom wall of the base, thereby combining the knob with the rope winding disc. 
     
     
         8 . The knob type rope adjuster according to  claim 7 , wherein a guide post is protruded inward from the bottom wall of the base, the guide post is arranged coaxially with the rope winding disc, one end of the elastic member is inserted into the rope winding disc, and another end is sleeved on an outer periphery of the guide post. 
     
     
         9 . The knob type rope adjuster according to  claim 7 , wherein the rope winding disc is provided with a primary clamping gear, the base is provided with a secondary clamping gear, and the primary clamping gear engages with the secondary clamping gear under an elastic force of the elastic member, thereby limiting the rope winding disc from rotating in the direction opposite to the winding direction; and the rope winding disc is driven to rotate along the winding direction by twisting the knob, and the primary clamping gear is arranged to compress the elastic member and is disengaged from the secondary clamping gear.