Measurement instrument

Abstract

The invention discloses a measurement instrument and relates to the technical field of measurement. The measurement instrument comprises a long-arm handle, a long rotating arm, a distance measuring disc, a graduated disc, a pointer sleeve, a pointer, a short rotating arm, a rotating shaft and a long-short rotating arm supporting transverse beam. The measurement instrument is characterized in that the long rotating arm is connected with the short rotating arm through the long-short rotating arm supporting transverse beam, the long rotating arm is connected with the long-short rotating arm supporting transverse beam and the short rotating arm in an h shape, the distance measuring disc is a flat cylindrical body with two faces concaved inwards, the cross section of the distance measuring disc is in an 'H' shape, the graduated disc is arranged on the outer edge of one side of the distance measuring disc, the rotating shaft perpendicular to the circular face of the distance measuring disc is arranged in the center of the long rotating arm and the center of the distance measuring disc, one end of the rotating shaft is fixedly arranged on the long rotating arm through a gasket and a circular-top screw nut, the pointer sleeve is sleeved at the other end of the rotating shaft, the other end of the rotating shaft is fixedly arranged on the short rotating arm through gaskets and a circular-top screw nut, one end of the pointer is connected with the pointer sleeve, and the distance measuring disc is made of wear-resisting hard rubber materials. The measurement instrument has the advantages of being small in size, convenient to carry, and convenient to use.

Description

technical field [0001] A measuring instrument relates to the field of measuring technology. Background technique [0002] In actual measurement, it is mostly a photoelectric length measuring instrument, such as drainage ditches, ramps and detours. However, laser measurement can only measure the distance between two points, and it is difficult to measure the length of any curve. The remaining box rulers and tapes have limited lengths, and the length of the curve is limited by the stretching of the tape during measurement, so it is also difficult to accurately measure the length of any curve. It is not convenient for field operation. The existing technology of a kind of measuring instrument of roller type is a three-wheeled sliding vehicle such as Chinese patent CN202420437U, and the device is complicated and bulky, and it is all inconvenient to carry and use. Contents of the invention [0003] In view of the deficiencies in the existing technology, for example, when meas...

AI Technical Summary

Problems solved by technology

The length of other box rulers and tapes is limited, and the length of the curve is limited by the stretching of the tape when measuring, and it is difficult to accurately measure the length of any curve

Not easy to operate in the field

The existing technology of a roller-type measuring instrument, such as Chinese patent CN202420437U, is a three-wheel sliding vehicle, and the device is complicated and bulky, and it is inconvenient to carry and use.

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