Concrete quality and safety detection device for building construction

Abstract

The invention discloses a concrete quality safety detection device for building construction, which includes a protection device, and the inside of the protection device is provided with a reset device, a fixing device and a tensioning device; through the cooperation of the protection device, a transmission device and a driving device, the While the main body of the hammer moves down, it can move a certain distance along the track of the transmission belt, so that the main body of the hammer can test the test points in the test area in turn. The operation process is simple and convenient, and the operation error rate is low, which further increases the measurement The accuracy reduces the workload of the inspectors, and the inspectors are not easy to fatigue, so that the inspection work can continue, and the speed of the measurement is further increased. Through the tensioning device, the signal transmission line is always in a tight state to ensure that the signal transmission line does not It will hinder the movement of the main body of the rebound hammer, thereby ensuring that the detection device can work efficiently, and improving the practicability of the concrete quality safety detection device for building construction.

Description

technical field [0001] The invention relates to the field of concrete quality and safety detection devices, in particular to a concrete quality and safety detection device for building construction. Background technique [0002] Concrete, referred to as "concrete", refers to the collective name of engineering composite materials that use cementitious materials to cement aggregates into a whole. The term concrete usually refers to cement as cementitious material, sand and stone as aggregates, It is mixed with water in a certain proportion and mixed with cement concrete, also known as ordinary concrete. It is widely used in house construction. After the house is built, the quality of the concrete building needs to be tested. The test items include compressive strength, Flexural strength, frost resistance, impermeability, etc., among which the compressive strength is tested by a rebound hammer. The basic principle is to use a spring to drive a heavy hammer, and the heavy hammer...

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Problems solved by technology

[0003] However, before the actual use of the existing non-contact rebound hammer, it is necessary to draw a 4*4 grid on the concrete wall with chalk manually, and the drawing speed is slow, which reduces the speed of detection. The instrument completely relies on manual holding and force application. When impacting, it is difficult to accurately control the vertical angle between the impact plane and the impact rod tested by the rebound instrument, which leads to errors in the detection process and low measurement accuracy. Simultaneous measurement There are many times, and each measurement needs to be aligned with the grid, adjusted to make it perpendicular to the measurement surface, push the rebounder horizontally to measure the rebound, pull the rebounder back to automatically reset it, and push the rebounder back. The instrument moves to the next measurement point to operate, not only the operation process is complicated, but the probability of operation error is higher, which leads to further increase of measurement error and lower measurement accuracy, and the workload of the inspection personnel is heavy, easy to fatigue, resulting in measurement The speed is further reduced, so it is urgent to design a kind of concrete quality safety detection device for building construction

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