Abstract: Disclosed is a torque limiter for a power winch, and a torque limit mechanism is installed for timely cut off the power transmission whenever the reverse torque generated by a carrying load exceeds a torque bearable by the power supply during a power transmission process for transmitting the power outputted from a power supply to a reduction mechanism through a long shaft, so as to prevent the power supply from being damaged by overload. The torque limit mechanism is formed by a torsion shaft, a friction plate, a brake pad, a disc-shaped elastic member, an adjustable positioning ring and a positioning screw ring.

Abstract: An electric car jack includes a spindle, a second middle gear, an elastic ring, an upper lining, a third middle gear, a lower lining, an adjusting and positioning ring and a positioning screw ring that jointly form a torque limiting mechanism with a torque limitation effect and a positioning plate, a power gear, a brake disc, a disc tray, an output shaft and a latching member that jointly form a powerless brake mechanism with a ratcheted braking effect. Both torque limiting mechanism and powerless brake mechanism are compatibly installed in a reduction gear of the machinery part f the electric car jack to maximize their effects.

Abstract: A power winch display panel installed at the front of a power winch and electrically connected to an electric control device of the power winch includes a primary power-on display area, and a temperature warning display area. The primary power-on display area uses a light emitting signal to display a CLOSE status of the power winch and a usable status of the power supply; the motor vehicle power level display area uses plural blocks and a light emitting signal to show a power level of the power winch installed on a motor vehicle, and different blocks are matched with different colored light emitting signals; and the temperature warning display area displays a light emitting signal to warn an operator to stop operating the power source when the temperature of the power source reaches a predetermined value.

Abstract: A power winch horizontal-pull clutch device provides dynamic forces from a power source and uses a deceleration device to retard the force transmission to a cable pulley for releasing and rewinding a steel cable on the cable pulley. A connecting slot is formed on a casing of the deceleration device. The deceleration device includes an outer ring body and at least one insert slot formed on an external surface. The power winch includes a clutch device for selectively fixing the connecting slot to the insert slot to transmit the dynamic force from the deceleration device to the cable pulley. The clutch device is a sealed assembly and a control handle is provided for making a horizontal movement to achieve the clutching effect and prevent water, dust or other foreign matters from entering into the clutch device, damaging components, causing failure or malfunction, or clamping an operator's hand or foreign matters.

Abstract: A power winch horizontal-pull clutch device provides dynamic forces from a power source and uses a deceleration device to retard the force transmission to a cable pulley for releasing and rewinding a steel cable on the cable pulley. A connecting slot is formed on a casing of the deceleration device. The deceleration device includes an outer ring body and at least one insert slot formed on an external surface. The power winch includes a clutch device for selectively fixing the connecting slot to the insert slot to transmit the dynamic force from the deceleration device to the cable pulley. The clutch device is a sealed assembly and a control handle is provided for making a horizontal movement to achieve the clutching effect and prevent water, dust or other foreign matters from entering into the clutch device, damaging components, causing failure or malfunction, or clamping an operator's hand or foreign matters.