A magnetic suction type steel bar detection device

Abstract

The invention provides a magnetic suction steel bar detection device, which at least includes a base and a detection head, the base is provided with a vertical guide rail unit, a control and display unit, and a detection head unit, and the detection head unit is installed on the vertical guide rail On the unit and can move up and down under the drive of the vertical guide rail unit, the detection head unit is in the shape of a strip as a whole, including a shell, a strong magnetic sheet, an upper limit bar, a lower limit bar, a guide bar, an elastic rope, and a tension sensor and a base; the vertical guide rail unit includes a slider, a screw motor, a screw and a guide rod, and a linear displacement sensor. The detection device innovatively adopts the principle of magnetic suction, and the detection head is set in a long strip shape, so it can greatly increase the single detection area, and it can be used with the vertical guide rail unit to realize up and down, so it has high detection efficiency, The advantage of low labor intensity.

Description

technical field [0001] The invention provides a detection device for detecting the position of steel bars in a building structure, in particular relates to a detection device based on the principle of magnetic adsorption, which belongs to the technical field of building detection. Background technique [0002] The steel bar detector is mainly used for the detection of the distribution, diameter, direction and thickness of the concrete protective layer in the concrete structure of engineering buildings. The steel bar detector can measure the position of the steel bar on the surface of the concrete, the condition of the reinforcement, measure the thickness of the concrete cover, the diameter of the steel bar, etc. In addition, the steel bar detector can also detect the position of magnetic and electrical conductors in concrete structures, such as cables and plumbing pipes in walls, etc. Detection before construction can effectively avoid damage to these facilities during const...

AI Technical Summary

Problems solved by technology

Due to the manual movement of the detection head, it is difficult to ensure that the detection head moves in the horizontal or vertical direction, resulting in a decrease in the accuracy of the displacement measured by the displacement sensor. At the same time, it is very troublesome to use external tools when detecting some areas with high heights.

The most important thing is that the existing detection head covers a small area. In the process of mobile detection, if the area of ​​the wall to be detected is large, it needs to be moved and detected for a long time. Not only the detection efficiency is very low, but also labor-intensive bigger

Images