Crack detection device for building concrete construction

By designing a crack detection device for building concrete construction including a crack pre-detector, the problem of difficulty in observing dark joints and long-term detection of large-areas is solved, fast and effective crack detection is achieved, and detection efficiency and accuracy are improved.

CN119643577AActive Publication Date: 2025-03-18NO 3 ENG CO LTD OF CCCC THIRD HARBOR ENG CO LTD
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Patent Information

Application Number
CN202510003373.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2025-03-18
Estimated Expiration
2045-01-02

AI Technical Summary

Technical Problem

The existing ultrasonic detection method is difficult to directly observe dark seams, which increases the detection difficulty, and comprehensive inspection of large-area concrete floors takes a long time and has a huge workload.

Method used

A crack detection device for building concrete construction is designed, including a trolley and a crack pre-detector installed on the bottom plate of the trolley. The crack pre-detector can quickly reveal the dark gaps on the floor surface through components such as electromagnetic relays, electromagnets, powerful springs and crack wall breakers.

Benefits of technology

This device can greatly reduce the construction period required for concrete crack detection, improve inspection efficiency, ensure comprehensive inspection of large-area concrete floors, reduce the risk of missed inspection, and reduce labor and time costs.

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Abstract

The invention discloses a crack detection device for building concrete construction, which comprises a cart, a crack pre-detector is mounted on a bottom plate of the cart, the crack pre-detector comprises a suspension bracket, an electromagnetic relay is mounted on the suspension bracket, an electromagnet is mounted at the center position of the electromagnetic relay, an integrated frame is arranged below the suspension bracket in parallel, and the integrated frame is connected with the integrated frame. An armature and a strong spring are mounted between the suspension bracket and the integrated frame; a plurality of crack wall breaking devices which are distributed in an array manner are mounted on the suspension bracket and the integrated frame; when the electromagnetic relay loses power, the strong spring drives the integrated frame and the limiting sliding pipe parts of the crack wall breaking devices to rapidly impact the concrete terrace; when the electromagnetic relay is powered on, the electromagnet attracts the armature, so that the integrated frame and the limiting sliding pipe parts of the crack wall breaking devices move upwards. According to the invention, the blind joint on the surface of the floor can be revealed through the crack wall breaking device, and the problem that the surface of the blind joint is intact and difficult to directly observe is solved, so that the construction period required by concrete crack detection is greatly shortened.
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