A device for detecting a road subsurface cavity
By introducing structures such as electric push rods and cams into the vehicle-mounted ground penetrating radar device, and using quicklime powder to mark the location of cavities on the ground, the problem that existing technologies can only mark rough locations has been solved, thus improving detection efficiency and accuracy.
CN224383470UActive Publication Date: 2026-06-19FUJIAN YONGXINDE ENG TESTING CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN YONGXINDE ENG TESTING CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-19
AI Technical Summary
Technical Problem
Existing vehicle-mounted ground-penetrating radar can only mark the approximate location when identifying underground cavities in roads, requiring secondary mapping, which results in low detection efficiency.
Method used
A detection device comprising a housing, a protective shell, and an adjustment mechanism is employed. Utilizing structures such as an electric push rod, a cam, and a friction roller, it marks the location of cavities on the ground using fine quicklime powder, thereby achieving accurate mapping.
Benefits of technology
It improved the accuracy and efficiency of cavity detection, reduced the time and labor required for subsequent surveying, and enabled precise on-site marking.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224383470U_ABST
Abstract
This utility model relates to the field of geological exploration technology, and in particular to a detection device for underground cavities in roads. It includes a housing and a protective shell mounted on a vehicle. The protective shell is fixedly connected to the side wall of the housing. An adjustment mechanism is provided inside the housing, comprising a rotating rod, friction rollers, a cam, a sliding rod, and a pressing plate. The rotating rod is rotatably connected to the side wall of the housing. Multiple friction rollers are fixedly connected to the outer surface of the rotating rod, and the cam is fixedly connected to the outer surface of the rotating rod. Through the cooperation of the electric push rod, cam, and friction rollers, when the detector detects the approximate location and distribution of underground cavities, the electric push rod is activated to drive the turntable, causing fine quicklime powder to fall from the outlet, marking the cavities on the ground. This facilitates subsequent accurate mapping of the cavities based on the quicklime powder, saving time and effort and improving mapping efficiency.
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