Portable wall hollow drum automatic detection instrument

Abstract

The invention provides a portable type wall hollow expansion automatic detecting instrument, relating to a kind of wall hollow expansion detecting device, particularly relating to a kind of portable type wall hollow expansion automatic detecting instrument. The portable type wall hollow expansion automatic detecting instrument has the merits of high accuracy, simple structure, convenient operation and low cost. It is equipped with automatic trippet, microphone, signal processing circuit, keystroke circuit, singlechip, result output circuit and power, the automatic trippet is equipped with knock head, electromagnet and relay, the knock head connecting rod is enveloped in the electromagnet core, the two ends of the electromagnet are connected with relay and one end of power respectively, the other end of power is connected with relay, input end of signal processing circuit is connected with audio signal output end of microphone, the output end of signal processing circuit is connected with pulse width detecting result output end of singlechip. The knock head of singlechip knocks the relay on the output end of command signal.

Description

technical field [0001] The invention relates to a wall hollowing detection device, in particular to a portable wall hollowing automatic detector. Background technique [0002] The existence of the hollow drum in the building wall will cause the failure of the bonding between the wall / finish and the main wall, which will seriously affect the overall strength of the wall and the quality of the ground decoration and facing construction, resulting in leakage and even damage to the wall / finish. Tiles falling off. Therefore, the detection of empty drums is an important link in the quality inspection and maintenance of commercial housing (1, "Code for Quality Acceptance of Construction Ground Engineering" (GB50209-2002), Ministry of Construction; 2, "Code for Quality Acceptance of Building Decoration Engineering" (GB50210- 2001), the Ministry of Construction), but because the main method of detecting wall hollowing generally adopts the manual knocking method, there are problems su...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a portable wall hollowing automatic detector with high accuracy, simple structure, convenient use and low cost in view of the existing problems that the detection of wall hollowing mainly relies on manual knocking and lack of detection equipment.

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