A rotary double-sided level gauge

Abstract

The invention discloses a rotary double-sided leveling ruler, which belongs to the field of leveling standards. A rotary double-sided leveling ruler comprises a first measuring ruler and a second measuring ruler located on the upper side of a base, the first measuring ruler and the second measuring ruler. The two measuring rulers are rotatably connected with a connecting shaft, the upper end of the connecting shaft is dug with a mounting groove, the inner wall of the mounting groove is connected with a micro-bubble level, the center of the upper end of the base is dug with a rotating groove, and a rotating mechanism is arranged in the rotating groove, and the lower end of the connecting shaft is connected. Connected with the rotating mechanism, the side ends of the first measuring ruler and the second measuring ruler are connected with a positioning plate, and an annular groove is dug on the upper end of the base. The structure is simple, and the levelness of the double-sided leveling rod can be adjusted quickly and easily. The double-sided leveling rod can be adjusted at an angle of 360 degrees, which is convenient for multi-angle measurement, and the adjustment will not affect the levelness of the double-sided leveling rod itself, which speeds up the measurement process and has high measurement accuracy.

Description

technical field [0001] The invention relates to the field of leveling rods, in particular to a rotary double-sided leveling rod. Background technique [0002] Leveling, also known as geometric leveling, is a method of measuring the height difference between two points on the ground with a level and a leveling rod. Place a level between two points on the ground, observe the leveling rod erected on the two points, and calculate the height difference between the two points according to the reading on the ruler. Usually starting from the leveling origin or any known elevation point, the elevation of each point is measured station by station along the selected leveling route. The line division of the double-sided leveling rod has two division values ​​of the precision leveling rod: 10mm and 5mm. A precision leveling scale with a division value of l0mm has two rows of divisions, the right row of divisions is called the basic division from 0-300cm, and the left row of divisions i...

AI Technical Summary

Problems solved by technology

[0003] In the traditional second-class leveling or higher-level leveling work, there is often the problem of over-limiting of the height difference closure, which cannot meet the needs of the project. For this, the method of re-testing the leveling route is usually used, which is not only time-consuming and laborious. Also facing the increase of work cost, the double-sided leveling rod can better improve the above problems. The angle of the existing double-sided leveling rod is inconvenient to adjust, and once the angle is adjusted, it is easy to make the double-sided measuring ruler lose the levelness. The level of the double-sided leveling rod itself is the key to measurement accuracy, but the existing double-sided leveling rod is inconvenient to control its own levelness, resulting in inaccurate measurement and slowing down the measurement process

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