Two-stage soil sampling device for geological survey
By using a dual-stage soil sampling device, which combines primary and secondary sampling devices, the problem of surface contamination by existing soil samplers is solved, and high-purity soil samples are collected.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-03-27
AI Technical Summary
Existing soil samplers are mostly single-stage devices, which cannot effectively prevent surface impurities from contaminating the sample and affecting its purity.
A two-stage soil sampling device is adopted, including a primary sampling device and a secondary sampling device. The sampling column of the secondary sampling device is fitted inside the sleeve of the primary sampling device. The outer diameter is slightly smaller than the inner diameter of the sleeve, allowing it to move up and down and rotate within the sleeve. Combined with the spiral blades, it breaks the soil and performs deep sampling.
This effectively prevents surface impurities from contaminating the samples and improves the purity of the soil samples.
Smart Images
Figure CN224051625U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to soil sampling equipment technical field, especially in two stage soil sampling device for geological survey. BACKGROUND
[0002] Soil sampling is the necessary prerequisite for analyzing the physicochemical properties of soil. As an essential tool in the process of soil sample collection, soil samplers directly affect the efficiency of soil collection. There are many types of existing soil samplers, which can be mainly divided into two categories: mechanical samplers and manual samplers. Among them, the mechanical sampler has a complex structure, occupies a large space, and is heavy, which is not convenient to carry. The manual soil sampler has a simple structure and is easy to carry and transport. However, the existing soil samplers are all single-stage sampling devices. When sampling the surface of a dirty ground, the soil sample taken by the single-stage soil sampling device will inevitably contain impurities on the surface of the soil, thereby affecting the purity of the taken soil sample. The utility model adopts a two-stage sampling device. The first-stage sampling device is responsible for breaking the surface layer of soil containing impurities, and the second-stage sampling device further samples soil downward based on the first-stage sampling device, effectively avoiding the pollution of the surface layer of soil to the sampled soil. SUMMARY
[0003] The utility model discloses a two-stage soil sampling device for geological survey, which can effectively solve the problems in the background art. The two-stage soil sampling device for geological survey is composed of a first-stage sampling device and a second-stage sampling device. The first-stage sampling device includes a sleeve, a spiral blade, a first operating pressure rod, a sleeve cavity, and a second-stage sampling device limiting space. The second-stage sampling device includes a second operating pressure rod, a connecting rod, a sampling column, a sampling cavity, and a sharp cone.
[0004] Further, the sampling column of the second-stage sampling device is sleeved in the sleeve cavity of the first-stage sampling device, and the second operating pressure rod of the second-stage sampling device is embedded in the second-stage sampling device limiting space of the first-stage sampling device.
[0005] Further, the outer diameter of the sampling column of the second-stage sampling device is slightly smaller than the inner diameter of the sleeve cavity of the first-stage sampling device, and the second-stage sampling device can move up and down and rotate in the sleeve cavity of the first-stage sampling device. BRIEF DESCRIPTION OF DRAWINGS
[0006] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0007] Figure 2 It is a sectional view of the overall structure of the utility model.
[0008] Figure 3 It is a schematic diagram of the first-stage sampling device of the utility model.
[0009] Figure 4 The utility model discloses a two-stage sampling device schematic view.
[0010] Wherein: 1, primary sampling device;11, sleeve;12, helical blade;13, first operation pressure rod;14, sleeve cavity;1, two-stage sampling device limit empty;2, two-stage sampling device;21, second operation pressure rod;22, connecting rod;23, sampling column;24, sampling cavity;25, sharp cone. DETAILED DESCRIPTION
[0011] The utility model discloses a two-stage soil sampling device for geological survey, and the specific implementation of the utility model will be introduced in detail below in connection with the drawings. A two-stage soil sampling device for geological survey is composed of a primary sampling device 1 and a secondary sampling device 2;Among them, the primary sampling device 1 includes sleeve 11, helical blade 12, first operation pressure rod 13, sleeve cavity 14, two-stage sampling device limit empty 1;The secondary sampling device 2 includes second operation pressure rod 21, connecting rod 22, sampling column 23, sampling cavity 24, sharp cone 2.
[0012] Further, the sampling column 23 of the secondary sampling device 2 is sleeved in the sleeve cavity 14 of the primary sampling device 1, and the second operation pressure rod 21 of the secondary sampling device 2 is embedded in the two-stage sampling device limit empty 1 of the primary sampling device 1.
[0013] Further, the outer diameter of the sampling column 23 of the secondary sampling device 2 is slightly smaller than the inner diameter of the sleeve cavity 14 of the primary sampling device 1, and the secondary sampling device 2 can move up and down and rotate in the sleeve cavity 14 of the primary sampling device 1.
[0014] After the primary sampling device 1 and the secondary sampling device 2 are combined together, the sharp cone 25 of the secondary sampling device just extends out of the sleeve 11 of the primary sampling device 1, which plays a role in breaking the soil and preventing the soil from entering the sleeve 11. When the primary sampling device 1 breaks the soil downward, the secondary sampling device 2 will be stopped by the primary sampling device 1 above, and the secondary sampling device 2 will not move up and down.
[0015] In use, the staff holds the first operation pressure rod 13 tightly with both hands at the position where the soil needs to be sampled, and rotates downward with force, so that the primary sampling device 1 breaks the soil and drills downward under the action of the helical blade. When drilling to the sampling position, the staff holds the second operation pressure rod 21 tightly with both hands, and rotates downward with force, so that the secondary sampling device drills downward under the action of the sharp cone 25, and the soil enters the sampling cavity 24 at the same time. After sampling is completed, the secondary sampling device 2 is extracted upward first, so that the soil sample enters the sleeve of the primary sampling device, and then the primary sampling device 1 is rotated reversely, so that the sampling device exits the soil layer. Then the secondary sampling device 2 is pushed, so that the sampling cavity 24 is pushed out of the sleeve 11, and then the soil is extracted from the sampling cavity 24 to complete the sampling work.
Claims
1. A two-stage soil sampling device for geological exploration, comprising a first-stage sampling device (1) and a second-stage sampling device (2); wherein, The primary sampling device (1) comprises a sleeve (11), a spiral blade (12), a first operating pressure rod (13), a sleeve cavity (14), and a secondary sampling device limiting space (15); the secondary sampling device (2) comprises a second operating pressure rod (21), a connecting rod (22), a sampling column (23), a sampling cavity (24), and a sharp cone (25).
2. The dual-stage soil sampling device for geological exploration according to claim 1, characterized in that: The sampling column (23) of the secondary sampling device (2) is sleeved in the sleeve cavity (14) of the primary sampling device (1), and the second operating pressure rod (21) of the secondary sampling device (2) is embedded in the secondary sampling device limiting space (15) of the primary sampling device (1).
3. The dual-stage soil sampling device for geological exploration of claim 1, wherein: The outer diameter of the sampling column (23) of the secondary sampling device (2) is slightly smaller than the inner diameter of the sleeve cavity (14) of the primary sampling device (1), and the secondary sampling device (2) can move up and down and rotate in the sleeve cavity (14) of the primary sampling device (1).