Metal aluminum sheath inner diameter measuring instrument
The utility model discloses a metal aluminum sheath inner diameter measuring instrument. The device comprises a measuring ruler, a first measuring rod, a second measuring rod, a first strut and a second strut, the first measuring rod and the second measuring rod are arranged in parallel. One end of...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a metal aluminum sheath inner diameter measuring instrument. The device comprises a measuring ruler, a first measuring rod, a second measuring rod, a first strut and a second strut, the first measuring rod and the second measuring rod are arranged in parallel. One end of the first measuring rod is fixedly connected with the measuring ruler. The other end of the first measuring rod is connected with one end of the first supporting rod through a screw movable point, the other end of the first supporting rod is slidably connected with the second measuring rod, one endof the second supporting rod is connected with the second measuring ruler through a screw movable point, and the other end of the second supporting rod is slidably connected with the first measuring ruler. An arc surface is arranged at the end, making contact with the inner wall of a metal sleeve, of a measuring rod. Meanwhile, the perpendicularity instrument is arranged on the measuring arm, themeasuring ruler and the me |
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