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Measurement centering device

A technology of centering device and switching device, which is applied in the directions of measuring device, measuring instrument, surveying and mapping, and navigation, etc., can solve the problem that the measuring instrument cannot be used for forced centering and fixing, and achieves concise design, complete functions, and easy installation. Effect

Active Publication Date: 2013-06-19
CHINA RAILWAY 15TH CONSTR BUREAU GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Reference 3 (CN201177506Y) is only a forced centering device used to control the measurement target by the corner intersection method, and cannot be used for forced centering and fixing of measuring instruments

Method used

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Examples

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Embodiment Construction

[0017] The present invention is a set of forced centering device which can replace almost all common marks and precision marks in known general and precision measurements. It consists of five parts: embedded parts, dust cover, adapter, adapter plate and adapter rod. Each part is composed as follows:

[0018] Such as figure 2 As shown: the embedded part 1 is composed of a Φ30 cylindrical nut sleeve 3 engraved with a 5 / 8-11 UNEF-2B screw hole 2, and a Φ12 metal rod coaxial connector 5 at the lower part. The cylindrical nut sleeve is made of stainless steel, and the dust collection chamber 4 is etched inside, so that it will not affect normal use when dust and sand fall into it. When in use, the embedded parts are embedded in the measured medium (such as reinforced concrete observation pier, top of high-speed railway protective wall, top of tunnel ditch, etc.), and the top surface of the embedded part 1 is flush with the medium, without intrusion or restriction. Take up extra ...

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Abstract

The invention relates to a measurement centering device which comprises a pre-embedded piece and a switching device, one end of the switching device being connected to the pre-embedded piece and the other end being connected to a measurement instrument. The device is characterized in that the pre-embedded piece (1) is parallel and level with an embedded medium, the switching device includes a switching head 26, a switching disk 27 and a switching rod 28; the switching head 26, the switching disk 27 and the switching rod 28 are respectively connected to the pre-embedded piece and the measuring device. The measurement centering device can replace almost known plane, elevation measurement marks and forced centering measurement makers, have the characteristics of complete function, strong generality, convenient mounting, corrosion resistance, no extra space occupation, simple manufacture and low manufacturing cost.

Description

technical field [0001] The invention belongs to a connecting and fixing device for measuring instruments in the field of precision engineering measurement, in particular to a precision centering device, which is suitable for precision engineering measurement fields such as high-speed railways and dam monitoring. Especially in the construction of high-speed railways, it can replace all the measurement marks of the basic plane control network CPI, line control network CPII, and track control network CPIII in roadbeds, bridges, and tunnels, as well as the measurement marks in the first and second-class precision leveling surveys. And through simple installation, it can solve the precise connection and centering of measuring equipment such as GPS satellite positioning system, total station, theodolite, range finder, reflecting prism, measuring target and leveling rod. Background technique [0002] The known centering methods of measuring instruments are to use plummets or optica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C15/08
Inventor 习仲伟赵国堂徐万鹏谷永磊许传波张玉军刘宏鲁科学李安杰
Owner CHINA RAILWAY 15TH CONSTR BUREAU GRP