Shackleyog ib hom hlua, uas tau siv dav hauv ntau yam lag luam xws li hluav taws xob, hlau, roj av, tshuab, tsheb nqaj hlau, kev lag luam tshuaj lom neeg, chaw nres nkoj, tsuas, kev tsim kho thiab lwm yam. Shackles yog tib yam li lwm cov hlua. Lawv muaj lawv tus kheej cov ntawv thov thiab cov lus qhia tsis raug. Nco tseg rau kev siv khawms: Cov khawms yuav tsum raug txhawb nqa lub nra.
Ntawd yog, qhov ua kom muaj zog yuav tsum ua raws txoj kab nruab nrab ntawm txoj hlua khi kom tiv thaiv kev khoov thiab tsis ruaj khov, tsis hais txog qhov hnyav dhau. Kev siv thiab siv tsis raug ntawm Covkhawm should be rolled flexibly in the lifting hole, and no jamming is allowed. Phenomenon: The khawm body must not bear the effect of lateral bending moment, that is, the effect bearing capacity should be in the plane of the body.

Qhov siab tshaj suav nrog lub kaum sab xis nruab nrab ntawm ob txhais ceg nqa los ntawmkhawm cannot be greater than 120 degrees. The use and invalidation of khawms The khawm is that when the wire rope sling is used as a binding sling, the horizontal pin part of the khawm should be connected with the keyhole of the wire rope sling. The appearance is when the rigging is lifted.

Qhov kev tsis sib haum xeeb ntawm txoj hlua hlau thiabkhawm causes the khawm to roll, and there is a risk of detachment. The use and invalidation specifications of the khawm. The pin is deformed up to 5% of the original size; the bolt is necrotic or slippery.