A civil engineering measuring device

Abstract

The invention discloses a civil engineering measuring device, which comprises a base and a storage tank arranged on the upper surface of the base, a combined measurement frame is arranged in the storage tank, and the two ends of the combined measurement frame are equipped with a main telescopic device through a single adjustment device , the other ends of the two main telescopic devices are hinged at the corners on the adjacent sides of the storage tank, the inner side of the main telescopic device is provided with a secondary telescopic device, and one end of the two secondary telescopic devices is connected to the combined measurement and the other ends of the two secondary telescopic devices are connected in the middle of the side wall of the storage tank, and one of the main telescopic devices is provided with a pendulum measuring device, which provides a wealth of measuring devices and avoids the The calibration is repeated, and the horizontal calibration of the automatic measurement base point is realized, the error in the measurement process is reduced, the accuracy of the measurement data is improved, and the structure is simple and portable.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a civil engineering measuring device. Background technique [0002] Civil engineering is a general term for the science and technology of building various land engineering facilities. It refers to the materials, equipment and technical activities such as surveying, design, construction, maintenance, repair, etc., and also refers to the object of engineering construction, that is, construction Various engineering facilities that directly or indirectly serve human life, production, military affairs, and scientific research, such as houses, roads, railways, pipelines, tunnels, bridges, canals, dams, ports, power stations, and airports , offshore platforms, water supply and drainage, and protection projects. Civil engineering refers to various technical work such as survey, planning, design, construction, installation and maintenance for new construction, reconstruction or expansion...

AI Technical Summary

Problems solved by technology

[0004] (1) When the surveyor uses a measuring device equipped with a level to measure the height difference between the construction ground points, he usually needs to hold a record book to record the measured value in order to calculate the height difference between the construction ground points. Therefore, during the measurement process, always need a Holding a notepad in one hand, the hands of the construction workers cannot be freed, and it is inconvenient to record the measurement data, which makes the measurement process cumbersome. The measuring instrument for civil engineering measurement is generally supported by a triangular bracket, which is bulky and inconvenient to carry, and it is difficult to install and disassemble. The speed is slow, which affects the accuracy of measurement data and measurement efficiency

[0005] (2) Only one of the measurement tools of the level, theodolite or spirit level can be used for the installation observation measurement of the tripod on the triangular corner, and in the measurement of civil engineering, it may be necessary to concentrate three or more measurement tools at the same time. For the measurement on the reference point, every time a measurement tool is replaced, a new horizontal calibration and positioning of the reference point are required, which greatly affects the measurement efficiency in civil engineering;

[0006] (3) The bottoms of the existing levels and theodolites are all provided with foot screws. Because the foot screws can only be fine-tuned in a short distance, the adjustment range is limited, so that the flatness of the ground has certain requirements, and when installing the tripod , it is necessary to manually adjust the horizontal visual adjustment of the tripod, and finally to fine-tune the foot screw, which requires two steps of adjustment. When the foot screw adjustment exceeds the range, how can it be necessary to re-adjust the height of the support point of the tripod, and further increase the measurement time. The level of preparation time for the measurement environment

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