Shackle is an indispensable rigging accessory in lifting construction operations. Shackle can be used to connect lifting pulleys and fixed slings. It is a light and flexible connection tool that is widely used. Shackles can be divided into bow shackles and U-shaped shackles according to their appearance characteristics. According to the purpose, there are: chain shackles, anchor shackles, and floating shackles.
(1) The chain shackle is a shackle used to connect the anchor chain. When in use, the horizontal bolt should be upward, and the horizontal bolt should be round to prevent it from rotating in the bolt hole and increase its strength. When using, first take out the horizontal bolt of the shackle, put the U-shaped buckle into the anchor chain ring to be connected, and then connect the horizontal bolt in series to an anchor chain ring above. In order to prevent the horizontal bolt from coming out, there is an oblique hole at each of the two ends of the horizontal bolt and the U-shaped buckle for driving the brake oblique pin. In order to prevent the oblique pin from coming out, a green lead seal should be inserted into the cavity left at the pin hole. Before the oblique pin is inserted into the pin hole, calcium-based grease should be applied to prevent rust.
(2) Anchor shackle is the shackle used to connect the anchor chain and the sinker, and the method of use is the same as the chain shackle.
(3) The floating shackle is the shackle used to connect the floating body and the anchor chain, and the method of use is the same as the chain shackle.