一种旋入式土壤采样装置
By designing a screw-in soil sampling device and utilizing a movable seat and sleeve limiting block structure, the problem of difficulty in removing the inner tube of the sampling tube was solved, thus achieving efficient and safe soil sampling operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 重庆一三六地质队
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the inner tube of the sampling tube experiences high friction when being removed, lacking an effective point of leverage, which makes removal difficult, especially when sampling from deep soil layers.
A rotary soil sampling device was designed, including a drive unit, a drill rod, a movable seat, a sampling tube, and a drill bit. The drill rod is inserted into the soil by rotation. After sampling, the sampling tube is pushed down by the movable seat and lever structure. The cooperation of the sleeve and the limiting block provides the force point of the sampling tube and reduces friction.
It effectively provides a point of leverage for the sampling tube, reduces friction, facilitates the removal of the sampling tube, improves sampling efficiency and safety, and reduces the difficulty of manual operation.
Smart Images
Figure CN224518210U_ABST
Abstract
Claims
1. A screw-type soil sampling device, characterized by, include: Drive unit (10); The top of the drill rod (20) is connected to the output end of the drive unit (10) for transmission. The bottom of the drill rod (20) is provided with a sliding groove (21). The inner top wall of the sliding groove (21) is provided with a limiting groove (22). The inner side wall of the limiting groove (22) is provided with a through groove (23) arranged vertically. The top of the movable seat (30) is fitted into the limiting groove (22), and the outer side wall of the movable seat (30) is fixedly provided with a lever (31) that passes through the through groove (23). The top of the sampling tube (40) is fitted into the bottom of the movable seat (30); The top of the drill bit (50) is fitted into the bottom of the slide groove (21). The drill bit (50) has a sampling port (51) that runs vertically through the drill bit. The outer side wall of the sampling tube (40) is in contact with the inner side wall of the sampling port (51).
2. The drive-in soil sampling device of claim 1, wherein: The outer wall of the drill rod (20) is fixedly provided with a helical blade (24) below the through groove (23).
3. A screw-type soil sampling device as claimed in claim 2, wherein: A sleeve (60) is threaded onto the outer wall of the drill rod (20) above the through groove (23). A cylinder (61) is fixedly provided at the bottom of the sleeve (60) along its circumference. The bottom of the cylinder (61) can abut against the top of the lever (31).
4. The drive-in soil sampling device of claim 3, wherein: A limit block (25) is fixedly installed on the top of the drill rod (20) above the sleeve (60).
5. A screw-type soil sampling device as claimed in claim 4, wherein: A handle (62) is fixedly provided on the outer wall of the sleeve (60).
6. A screw-type soil sampling device according to any one of claims 1 to 5 wherein: The top of the movable seat (30) is provided with a first through hole (32) along the vertical direction, and the inner sidewall of the limiting groove (22) is provided with a second through hole (26) above the through groove (23) that extends to the outer sidewall of the drill rod (20).
7. A screw-type soil sampling device as claimed in claim 6 wherein: It also includes a tension spring (70), which is disposed in the limiting groove (22), and the two ends of the tension spring (70) are respectively connected to the top of the movable seat (30) and the inner top wall of the limiting groove (22).