A clutch structure, comprising: a stationary casing , which has an outer circumference to which a motor is mounted, the motor comprising a worm that extends into an interior of the stationary casing ; an actuation unit , which is arranged in the interior of the stationary casing , the actuation unit comprising a rotary disc and a push disc , the rotary disc having a circumference that is formed with a worm gear in mating engagement with the worm , at least two rollers being arranged between the rotary disc and the push disc and equally spaced from each other; an input shaft , which is rotatably extended into a center of the rotary disc of the actuation unit ; a push unit , which is mounted on the input shaft , the push unit comprising a push bracket , a spring holder , and a bowl-shaped spring plate , wherein the push bracket is coupled to the input shaft in a manner of being parallel slidable and synchronously rotatable with respect thereto, the spring holder being rotatably arranged on the push bracket , the bowl-shaped spring plate being supported between the spring holder and the push disc ; a clutching unit , which is arranged on the input shaft at one side thereof that is adjacent to the push unit , the clutching unit comprising a plurality of first lining plates and a plurality of second lining plates that are alternately arranged in a spaced manner, wherein the first lining plates are coupled to the input shaft in a manner of being parallel slidable and synchronously rotatable with respect thereto, and the second lining plates are arranged in a manner of being rotatable relative to the input shaft ; and an output casing , which is rotatably mounted in the interior of the stationary casing at one side thereof that is adjacent to the clutching unit , the output casing being coupled to the second lining plates in a manner of being parallel slidable and synchronously rotatable with respect thereto. a stationary casing , which has an outer circumference to which a motor is mounted, the motor comprising a worm that extends into an interior of the stationary casing ; an actuation unit , which is arranged in the interior of the stationary casing , the actuation unit comprising a rotary disc and a push disc , the rotary disc having a circumference that is formed with a worm gear in mating engagement with the worm , at least two rollers being arranged between the rotary disc and the push disc and equally spaced from each other; an input shaft , which is rotatably extended into a center of the rotary disc of the actuation unit ; a push unit , which is mounted on the input shaft , the push unit comprising a push bracket , a spring holder , and a bowl-shaped spring plate , wherein the push bracket is coupled to the input shaft in a manner of being parallel slidable and synchronously rotatable with respect thereto, the spring holder being rotatably arranged on the push bracket , the bowl-shaped spring plate being supported between the spring holder and the push disc ; a clutching unit , which is arranged on the input shaft at one side thereof that is adjacent to the push unit , the clutching unit comprising a plurality of first lining plates and a plurality of second lining plates that are alternately arranged in a spaced manner, wherein the first lining plates are coupled to the input shaft in a manner of being parallel slidable and synchronously rotatable with respect thereto, and the second lining plates are arranged in a manner of being rotatable relative to the input shaft ; and an output casing , which is rotatably mounted in the interior of the stationary casing at one side thereof that is adjacent to the clutching unit , the output casing being coupled to the second lining plates in a manner of being parallel slidable and synchronously rotatable with respect thereto. <EOS>