Two-way lead wire device

A technique of drawing wires and wires, which is applied in the field of measuring devices for dam displacement, can solve the problems of limited measurement range, corrosion of drawing wires, liquid loss, etc., and achieves the effects of reducing input cost, high measurement accuracy and stable performance.

Inactive Publication Date: 2005-12-07
NANJING AUTOMATION INST OF WATER CONSERVANCY & HYDROLOGY MINIST OF WATER RESOURCES
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional one-way tension line device can only realize the horizontal displacement measurement and the static level device can only realize the vertical displacement measurement, and the respective measurement ranges are greatly limited, which also increases the cost
In addition, when the one-way tension wire is in use, as time goes by, the liquid in the water box will naturally lose, resulting in inaccurate measurement, and the liquid will also corrode the tension wire for a long time. cannot be measured accurately

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 In the shown two-way tension line end device, the tension line body (3) is introduced from the fixed end (1), the end point is provided with a fixed fixture (8) clamping device (that is, the fixed end), and the other end is provided with a load device Promptly hang heavy end (2), be provided with line body reel (9) wheel shaft simultaneously, the steamboat of wheel shaft constitutes indium steel wire reel, fixed end (1), hang heavy end (2) both coaxial. 60kg--80kg weight is hung on the lower end of the load wheel as a preload. The measurement range of each measuring point where the sensor is installed is ±50mm horizontally, ±25mm vertically, and the accuracy is ±0.1--±0.2mm. There is a manual measuring ruler installed in the measuring point box, which can check the reliability of the measured value of the automation system. Its technical performance characteristics are as follows:

[0025] 1. The system still uses the tension line body as the carrier ...

Embodiment 2

[0040] Such as figure 2 The two-way extension line measuring points shown are the same as the four observation points introduced by the indium steel wire at the dam end. They are respectively introduced into the two-way measuring point box by their respective signal lines, and the measuring point box is led into the observation room through the signal line. The working principle is the same as the embodiment.

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Abstract

The invention discloses a bidirectional tension line device, which belongs to a measuring device in the fields of water conservancy, transportation, rock and soil and the like. It includes a fixed end, a heavy end, a tension wire body, a two-way measuring point box, an automatic water adding device, a liquid storage tank and a connecting pipe. Two-way stretching line instrument; the connecting pipe connects the water box, liquid storage tank and automatic liquid adder in the measuring point box. The pulling line body is introduced from the fixed end, floats through each measuring point to the hanging heavy end, and Wrap the wire body around the idler wheel. The present invention changes the previous one-way tensioning line device and static leveling device which can only achieve a single measurement purpose, realizes dual-purpose one line, makes one bidirectional tensioning line device meet the requirements of the two sets of devices in the past, and saves a lot of cost.

Description

technical field [0001] The invention relates to a device for measuring displacement of a dam, more precisely, the invention relates to a device for measuring a dam by using tension wires, and belongs to the technical field of measuring devices in the fields of water conservancy, transportation, and rock and soil. Background technique [0002] With the development of science and technology, higher requirements are put forward for the dam prototype observation instruments. In addition to using the manual observation steel ruler to obtain the original data, it should also be able to realize automatic monitoring, so that the engineering management department can grasp the safety status of the project in time and make corresponding measures. This is also the direction of development of engineering safety monitoring instruments. The traditional one-way tension line device can only realize the horizontal displacement measurement and the static level device can only realize the vert...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/02G01C5/04
Inventor 徐国龙司雪峰符伟杰朱爱华储海宁
Owner NANJING AUTOMATION INST OF WATER CONSERVANCY & HYDROLOGY MINIST OF WATER RESOURCES
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