The position of the externalsleeve can be adjusted by a screw (3) and a nut (4) to adjust the size of the gap.
通过螺丝（3）和螺母（4）可以调节外套位置，以调节间隙的大小。
2
The strain clamp comprises an internal thread pull anchor, a sleeve, an inner-cone external thread core sleeve, an outer-cone elastic clamp core, a bush, and the like.
由内螺纹拉锚、套管、内锥外螺纹芯套、外锥弹性夹芯、衬套等组成。
3
Concerning two fixings of the processing of the minor hole of the sleeve, the external circle must be precisely located.