Surface layer sampling device for road material analysis
By forming an annular depression on the outer wall of the core sample and combining reciprocating rotation with lateral movement, the problems of time-consuming and labor-intensive core sampling and core sample breakage in traditional core drilling are solved, enabling flexible adjustment of sampling depth and rapid non-destructive sampling.
CN122192835APending Publication Date: 2026-06-12CANGZHOU TRANSPORTATION BUREAU
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CANGZHOU TRANSPORTATION BUREAU
- Filing Date
- 2026-05-15
- Publication Date
- 2026-06-12
AI Technical Summary
⚠Technical Problem
Existing core sampling methods are time-consuming and labor-intensive, easily leading to core sample breakage, and cannot sample at depths less than the surface layer thickness.
⚗Method used
A surface sampling device for road material analysis is used. By forming an annular depression on the outer wall of the core sample through protrusions, and combining the reciprocating rotation of the core cylinder with the lateral movement of the translation frame, the core sample can be controlled to fracture and be removed.
🎯Benefits of technology
It enables rapid and non-destructive core sampling, avoiding the impact damage of traditional prying methods. It can flexibly adjust the sampling depth at a predetermined depth, improving detection efficiency and core sample integrity.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122192835A_ABST
Abstract
The application provides a surface layer sampling device for road surface material analysis, which comprises a base, a core barrel and a pressurizing assembly; the base is provided with a horizontal frame which is slidably connected to the base in the horizontal direction, and the horizontal frame is provided with a lifting frame which is slidably connected to the horizontal frame in the vertical direction; the core barrel is rotatably connected to the lifting frame, and the inner wall of the core barrel is provided with a plurality of grooves, and each groove is slidably connected to a protrusion; the pressurizing assembly is in communication with the plurality of grooves and is used for pressurizing the grooves to drive each protrusion to move to the outer wall of the core sample to continuously provide a force towards the center of the core sample; on this basis, the core barrel is driven to rotate back and forth in the clockwise direction and the counterclockwise direction, so that an annular depression is formed on the surface of the core sample; then, the horizontal frame is driven to move back and forth, so that the core sample is disconnected from the annular depression. The surface layer sampling device for road surface material analysis provided by the application realizes rapid sampling, and the sampling depth can be flexibly adjusted to adapt to different needs of users.
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