käsitõstuk

Käsitõstuk, often translated as manual hoist or hand hoist, is a mechanical device used to lift or move heavy loads using human power. These devices are characterized by their simplicity, portability, and lack of reliance on external power sources like electricity or compressed air. They are commonly found in workshops, construction sites, garages, and various industrial settings where loads need to be lifted or repositioned.

The most prevalent type of käsitõstuk is the chain hoist. It consists of a hand chain, a load chain, and a lifting mechanism. When the hand chain is pulled, it engages a set of gears that lift or lower the load chain, which is attached to the object being moved. This mechanism amplifies the force applied by the user, allowing them to lift weights far exceeding their own strength. Other forms of käsitõstuk can include lever hoists, which use a lever arm for operation, and block and tackle systems, which employ multiple pulleys to reduce the effort required.

Käsitõstukid are valued for their reliability and ease of use. Their manual operation makes them suitable for environments where electrical power is unavailable or hazardous. Safety is a primary concern in their design, with features such as braking systems to prevent accidental lowering and robust construction to handle significant loads. Regular inspection and maintenance are crucial to ensure the safe and effective operation of any käsitõstuk.