Chain lever hoist pulley with the tacit understanding with the

Chain  lever hoist  is a small crane with manually operated. Commonly used for lifting and money it work. As the car pulled trapped pit, remove topple trees or other obstacles as well as the bridge position. In short, difficult to install in some other lifting tools narrow place, the use of chain lever hoist is particularly appropriate.
When using the chain hoist, hand pull, although only a few kilograms, but it can improve the number of dozens of tons of tons of heavy or pulling at noon. If used in conjunction with block and tackle, but also to enhance the weight increase exponentially.

Chain lever  lift hoist  lifting and towing it to complete the job, depending on their internal special agency. The agency consists of connecting rod and two prices, as shown in the role of the clamp when the clutch is like a tug of war rope clamp down like two hands tightly grasping the rope. When moving forward handle type back and forth, before and after the two teams will alternately grab rope clamp. Money clamped in the clamp,Wire rope winch the rear clamp to relax; stepping up the rear clamp, the front clamp to relax, so that the taut rope continuously from one end of the casing into the hole, and the air drawn from the other side. This complex lever handle, to complete the winding or hauling heavy loads.
In the absence of external force when the agency by enclosure two compression springs, through a system of levers, ropes produced in the early pressure, so as to achieve self-locking effect.