Core-drilling sampling auxiliary device for exterior wall thickness detection

Abstract

The invention discloses a core-drilling sampling auxiliary device for exterior wall thickness detection. The auxiliary device comprises a dust cover, wherein the dust cover is installed on a drillingmachine, a hollow drill is installed at the center of the drilling machine, a longitudinal sliding slot is formed in the outer wall of the dust cover, a sliding plate is arranged in the sliding slot,a spring is arranged between the top end of the sliding plate and the sliding slot, a pressing plate is arranged at the lower end of the sliding plate, a perpendicular angle is formed between the pressing plate and the sliding plate, a micro beam lamp and an inductor are arranged on the perpendicular angle, a controller and a power source are arranged at the upper end of the dust cover, a single-chip microcomputer or a PLC control system is arranged in the controller, the controller is connected with the inductor, and an alarm is arranged in the controller. The auxiliary device is installed onthe existing drilling machine, the sliding plate and the pressing plate form an L-shaped right-angle frame to guarantee the perpendicularity between the circumference of the dust cover and a wall space, therefore, perpendicularity between a drill bit and the wall space is guaranteed, an accurate core sample is drilled, and a detection structure is more accurate.

Description

technical field [0001] The invention relates to an auxiliary device for a core-drilling sampling device used for detecting the thickness of an outer wall insulation layer. Background technique [0002] In the inspection of whether the energy-saving structure of the outer wall of the building with insulation layer meets the design requirements, according to the GB50411 "Code for Construction Quality Acceptance of Building Energy-saving Engineering", a core sample with a diameter of 70mm was taken from the outer wall of the building with the insulation layer. Observe the type of material and measure the thickness of the insulation layer for the core sample taken out, so as to judge whether it meets the design requirements of energy-saving structure. In order to obtain accurate results, the drilling of the core sample is first required to be very accurate. We used a common hollow drill bit to drill the core on the outer wall of the building. The specification requires core dri...

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Problems solved by technology

However, ordinary hand-held drilling rigs can't drill through the wall at all, and drilling through the wall has a certain impact on the structure and insulation of the building's outer wall.

[0003] When drilling the core sample, it should be kept perpendicular to the wall as much as possible to ensure the accuracy of the drilling thickness results. However, ordinary drilling rigs do not have a verticality detection device and cannot achieve an accurate vertical state. Moreover, due to vibration during drilling, the drilling machine will A certain inclination will affect the thickness structure of the core sample. At the same time, a large amount of dust and gravel will be raised during the core drilling process, which will have a certain impact on the working environment.

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