1results about How to "Small mesh" patented technology

This utility model discloses a clutch-operated chain-locking device for a tensioner or hoist, comprising a housing, a handwheel, a push-back lever, a locking block, an unlocking lever, and a clutch shaft, a rear reduction gear shaft, a clutch elastic element, and at least one clutch elastic element mounting seat mounted on a wall panel. The push-back lever is fixed to the handwheel and screwed into a screw hole in the housing. One end of the locking block is elastically pivotally mounted on the handwheel, and the other end is fixed to the unlocking lever, which rests in a limiting groove on the handwheel. The clutch shaft has at least one clutch shaft pinion. The rear reduction gear shaft has a rear reduction gear and a rear reduction gear shaft pinion. The sprocket shaft has a spline-connected final reduction gear, a sprocket, and a chain wound on the sprocket. The clutch elastic element abuts against the clutch shaft and the clutch elastic element mounting seat. This device ensures that the chain cannot be switched arbitrarily under load, guaranteeing safety during tensioning or lifting. It allows for unlocking and disengaging of the fast chain under no-load conditions.