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Width detecting instrument for house crack fracture after earthquake hazard

A technology of width detection and housing, applied in the field of detectors, can solve problems such as inconvenient operation, inapplicability to on-site measurement, and high environmental conditions, and achieve the effect of simple structure

Inactive Publication Date: 2008-12-10
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage of this patent is that it can judge the cracks of the building, measure the crack parameters, and obtain various parameters of the cracks, but the structure is complex, the operation is inconvenient when used, and the environmental conditions are high, so it is not suitable for on-site measurement.
The disadvantage of this patent is that it can be used for quality inspection of construction projects, but without lighting power supply, it is impossible to take images directly and in time.

Method used

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  • Width detecting instrument for house crack fracture after earthquake hazard

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Embodiment Construction

[0011] The width detecting instrument of crack fracture of house after the earthquake that the present invention provides comprises digital camera 1, zoom lens 2, lengthening lens barrel, standard scale plate 9, and wherein, lengthening lens barrel is composed of cylinder body 5, power supply 6, power supply 6 boxes, switch 7 , a small light 8, and a wire; the upper end 4 of the barrel 5 is fixed on the lower part 3 of the zoom lens 2 through a bayonet connection, and there are holes on the barrel 5; the standard scale plate 9 is fixed on the lower end 10 of the barrel 5, and the scale is upward; The power supply 6, the box of the power supply 6 and the switch 7 are fixed on the outer wall of the cylinder 5; the small lamp 8 is fixed on the inner wall of the cylinder 5 to provide lighting; the wire passes through the hole on the cylinder 5 to connect the power supply 6 and the switch 7 , small light 8. When the present invention is used, the lengthened lens barrel has its own ...

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Abstract

The invention disclose a width detector for the cracks and the fractures of the houses after an earthquake which comprises a digital camera, a zoom lens, a lengthened drawtube and a standard graduation plate; wherein, the lengthened drawtube consists of a body, a power, a power box, a switch, a small lamp and a lead and has a simple structure. When in use, the lengthened drawtube is provided with a lighting power and can directly shoot images in time and obtain the image data. The lengthened drawtube is applicable for detecting the width of the cracks and the fractures of the houses after an earthquake in particular.

Description

technical field [0001] The invention relates to a detector, in particular to a width detector used for measuring cracks and fractures of houses after earthquakes. Background technique [0002] Various bottom plates, vertical walls, roof plates, underground box foundations and other special structures of industrial and civil houses may encounter holes and cracks of various shapes, such as round, square, rectangular, etc. There are also some structures that have a sudden change in section in the length direction. Especially after the earthquake, due to the strong damage of seismic waves, stress concentration will also be caused in the corners of holes and variable sections, resulting in cracks; , Cracks will also occur due to the strong seismic waves exceeding the building strength of the house. Therefore, after an earthquake, cracks in houses are common. After the earthquake, how to detect the cracks of the house is the primary task of evaluating the damage of the house, a...

Claims

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Application Information

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IPC IPC(8): G01B11/02
Inventor 曹宇张克跃
Owner SOUTHWEST JIAOTONG UNIV
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