Gather in owner action bars locking device that changes speed

The utility model discloses a gather in owner action bars locking device that changes speed, including hand brake, main action bars and the main action bars control mechanism that changes speed of changing speed, hand brake includes braking handle and handle seat, and the main action bars control mechanism that changes speed acts as go -between, shifts in returning, two control pulling string andcontrol pulling string canceling release mechanical system, the main action bars lower extreme and the frame fixed connection that shifts of changing speed, and the frame center of shifting articulates through the frame revolving axle AND operation board that shifts. It sets up in one side that the brake was acted as go -between side by side to act as go -between in returning, acts as go -betweenin returning that it is articulated with two control pulling string's one end respectively through the swivel pin to pass behind the handle seat fixed plate, and two control pulling string's the otherend is respectively with t