A marking awl thicknesser and marking off frock for traction pull rod
The utility model discloses a marking awl thicknesser and marking off frock for traction pull rod, wherein, the marking awl thicknesser includes the chassis and locates the bead on the chassis, the chassis can be located traction pull rod's pressure equipment downthehole and with pressure equip...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a marking awl thicknesser and marking off frock for traction pull rod, wherein, the marking awl thicknesser includes the chassis and locates the bead on the chassis, the chassis can be located traction pull rod's pressure equipment downthehole and with pressure equipment hole looks adaptation, the bead can be rotatory around the axis in traction pull rod's pressure equipment hole, and the bead includes the first side wall and as the second lateral wall of marking off benchmark, and the first side wall can be parallel with the line of centres in two pressure equipment holes of traction pull rod, a line coplanar in second lateral wall and pressure equipment hole, and the outside in pressure equipment hole is all stretched out at the both ends of second lateral wall, the projection on traction pull rod's marking off terminal surface of the first side wall and second lateral wall is predetermines the angle. This marking awl thicknesser is convenient for reduce the manual operation erro |
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