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A deep-water high-precision anti-rotation and inversion measuring device

A measuring device and high-precision technology, which is applied in the direction of measuring devices, measuring instruments, surveying and navigation, etc., can solve problems such as errors and measurement deviations, and achieve the effect of ensuring measurement accuracy, measurement accuracy and stability

Active Publication Date: 2017-01-18
CCCC SECOND HARBOR ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the water depth increases, for example, when the water depth reaches 25m to 30m, the length of the wire rope increases, and the buoyancy of the buoy increases. The buoy twists and touches the wall, which will also cause measurement deviation or even error

Method used

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  • A deep-water high-precision anti-rotation and inversion measuring device
  • A deep-water high-precision anti-rotation and inversion measuring device

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] A high-precision anti-rotation and inversion measuring device in deep water, including a marker 1, an underwater measuring member 6, an annular buoy 8 and a leveling connection device; There is a positioning hole 9 at the center, and the leveling connection device includes a centering screw 4, two nuts 2 and two positioning spacers 3, the centering screw 4 passes through the positioning hole 9, and two positioning spacers 3 The centering screw 4 is respectively arranged on the upper and lower sides of the positioning hole 9, close to the force transmission beam 7, fixed on the centering screw 4 by the nut 2, and the centering screw 4 is also connected by the nut 2 connected to its two ends. It is fixed at the adjustment hole 9. The underwater measuring part 6 and the above-water marking part 1 are set at the center of the annular buoy 8 through ...

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Abstract

The invention discloses a deepwater high-precision anti-rotating inverted measuring device. The device comprises a labeling piece, an underwater measuring piece, an annular floating bowl and a leveling connection mechanism, wherein a mechanic beam is arranged above the annular floating bowl; a positioning hole is formed in the middle of the mechanic beam; the leveling connection mechanism comprises a centering threaded rod and at least two screw nuts; the centering threaded rod penetrates through the positioning hole and is fixed on the positioning hole through the screw nuts connected to the two ends of the centering threaded rod; the upper end of the centering threaded rod is connected with the labeling piece; the lower end of the centering threaded rod is connected with the underwater measuring piece. According to the invention, the possibility that the floating bowl rotationally hits the wall in deepwater in the measuring process can be effectively eliminated, the measuring accuracy of the inverted method is obviously improved, and in addition, the horizontal coordinate of cross beam rail ends to be measured can be directly collected.

Description

technical field [0001] The invention relates to construction measurement of a well-shaped girder of a slideway of a hydraulic structure with an underwater installation inversion method, in particular to a deep-water high-precision anti-rotation inversion measurement device. Background technique [0002] The inverted method is to measure the underwater plane position of the well-shaped beam rail by using the principle that the hydrostatic pressure exerts the buoyancy of the floating body vertically upward. There is a commonly used inversion method, which uses a measuring device that includes two buoys that are fixedly connected through a connecting rod. The measuring parts such as steel wire ropes are placed in the middle of the connecting rods, and the leveling device is set on the top of the two buoys. This measuring device When used in deep water, some problems will gradually be exposed, such as the rotation balance of the two buoys is not good enough, resulting in inaccur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C15/00
CPCG01C15/00
Inventor 张鸿郭劲李宗哲陈少林程茂林
Owner CCCC SECOND HARBOR ENG
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