| 摘要 |
PROBLEM TO BE SOLVED: To provide a multifunctional level gage which eliminates a complicated operation to readjust a bolt hole in a flange and the face in the upper part of the level gage due to its deviation when a pipe is worked and when the horizontality of the flange is checked. SOLUTION: A center shaft 4 is installed in a tube 3 which is provided with a slide part 1 and a rotation part 2. An operating shaft 5 and a spring 6 are installed at the center shaft 4. A rubber 7 and a protrusion 8 are installed at the operating shaft 5. A connection part 9 is installed between the spring 6 and the operating shaft 5. A pulling rod 10 is installed at the connection part 9. A lock 11 and a knob 12 are installed at the pulling rod. When the horizontality of the flange is checked, the tube 3 is first slid and turned so as to be aligned with the bolt hole in the flange, and the tube 3 is put into the bolt hole in the flange. After that, the lock 11 of the knob 12 is released. The operating shaft 5 is pushed out by the spring 6 so as to be fixed to the bolt hole. A level gage body is set to a state that it is fixed to the flange. When the horizontality of the flange is checked, it is not required to confirm the bolt hole and the position of the face of the level gage many times whenever they are adjusted as in conventional cased, and the multifunctional level gage becomes convenient.
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