Soil sampling tube
By designing a soil sampling tube for rotating the soil to transport the spiral blades, the problems of long operating time and VOC volatility in the prior art are solved, and an efficient and accurate soil sampling process is achieved.
Patent Information
- Application Number
- CN202422230609.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The existing soil sampling tools have a long operating time and are not properly loaded, which leads to VOC volatility affecting the accuracy of sample detection and is time-consuming and labor-consuming.
Design a soil sampling tube to transport the soil into the sampling tube body through the rotation of spiral blades, instead of a spoon or shovel to fill it, including a sampling tube body made of transparent hard plastic, stainless steel spiral blades and removable cover.
It realizes time-saving and labor-saving soil sampling, reduces VOC volatility, and ensures sample accuracy and operating efficiency.
Smart Images
Figure CN223122552U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of soil research and tests, especially soil sampling equipment, and specifically relates to a soil sampling tube. Background Technique
[0002] Soil environmental monitoring refers to determining the environmental quality (or pollution degree) and its change trend by measuring representative values of factors affecting soil environmental quality. The collection of soil is to obtain representative soil samples. Soil sampling must be carried out according to the principles and requirements in the sampling standard for site selection and collection. In the investigation of soil pollution status, by selecting appropriate sampling positions and sampling containers, soil samples can be accurately collected on-site in a short time to provide data for the investigation of soil pollution status. Soil is an inhomogeneous medium with high spatial variability. The identification of the distribution range of pollutants in soil is affected by the number of sampling points. The larger the number of sampling points, the finer the description of the pollutant distribution range. To ensure the representativeness of the monitoring results of various index parameters of soil, truly reflect the soil pollution status of construction land, and provide a basis for site environmental management, appropriate sampling tools should be used during the screening process to ensure the feasibility of monitoring work and the smooth progress of subsequent work, and ensure the scientificity and objectivity of environmental monitoring of polluted sites.
[0003] According to the monitoring purpose, generally to understand the soil pollution status, it is necessary to take the surface soil of 0 - 15 cm or 0 - 20 cm; to understand the vertical distribution of pollutants in the soil, it is necessary to sample by layer along the soil profile. The depth of each columnar sample is 100 cm, and three soil samples are taken: surface sample (0 - 20 cm), middle layer sample (20 - 60 cm), and deep layer sample (60 - 100 cm).
[0004] The sampling bottle in the prior art is a 40 ml brown VOA vial with a spiral cap of polytetrafluoroethylene membrane. The soil sampling method in the prior art is to take out the soil at the sampling point through a drill, machinery, etc. The staff holds the sampling bottle to make the soil enter the bottle and then seals it. However, the mouth of this kind of sampling bottle is small, and it is very difficult to put the soil sample into the bottle with a spoon or a small shovel. Moreover, during the sampling process, due to the difficulty of putting it into the bottle, the operation time is long and the filling process is not standardized, which will cause the VOC (volatile organic compounds) in the soil sample to volatilize during the sampling process, affecting the accuracy of sample detection, and the sampling process is time-consuming and laborious. Content of the Utility Model
[0005] The technical problem to be solved by the utility model is to provide a soil sampling tube. Insert the open end of the sampling tube body into the soil, and through the rotation of the spiral blade, convey the soil into the sampling tube body to ensure sufficient sampling, replacing the previous method of filling with a spoon or a shovel, which saves time and effort.
[0006] The utility model is realized through the following technical solutions:
[0007] A soil sampling tube, comprising a sampling tube body, the upper end of the sampling tube body is an open mouth, and a detachable cover is assembled on the open mouth;
[0008] A sampling rod is rotatably installed in the sampling tube body, and spiral blades are arranged on the rod body of the sampling rod;
[0009] A screw cap that can be fixedly connected to the sampling rod is assembled at the lower end of the sampling tube body.
[0010] Furthermore, the upper end of the sampling rod is a sharp cone and extends outside the open mouth.
[0011] Furthermore, the maximum outer diameter of the spiral blade is 1-2 mm smaller than the inner diameter of the sampling tube body.
[0012] Furthermore, an annular groove is provided on the outer side wall of the lower end of the sampling tube body;
[0013] A sliding block that is slidably matched with the annular groove is provided on the inner circumferential wall of the screw cap.
[0014] Furthermore, a limiting groove and a polygonal hole are sequentially arranged on the bottom of the screw cap from top to bottom. A polygonal connecting column is provided at the lower end of the sampling rod, and a pin hole is provided on the polygonal connecting column. When the polygonal connecting column is inserted into the polygonal hole, a pin shaft that can pass through the pin hole is inserted on the screw cap.
[0015] Furthermore, the screw cap is assembled by two split caps through a bolt assembly.
[0016] Furthermore, the sampling tube body is made of transparent hard plastic, and the sampling rod and the spiral blades are made of stainless steel.
[0017] The beneficial effects obtained by the present utility model compared with the prior art are as follows:
[0018] 1. When performing soil sampling, insert the open mouth of the sampling tube body into the soil. While rotating the spiral blade by controlling the screw cap, push the sampling tube body forward, so that the soil is conveyed into the sampling tube body along with the spiral blade, thereby ensuring sufficient sampling and replacing the previous method of filling the sampling bottle with a spoon or a shovel. The whole sampling process is time-saving and labor-saving;
[0019] 2. The upper end of the sampling rod is a sharp cone handle that extends outside the open mouth. With such a design, when inserted into the soil, it is convenient to position for sampling operations;
[0020] 3. The screw cap is rotatably connected to the lower end of the sampling tube body through the sliding block and the annular groove, and the screw cap can be stably rotated to ensure the stable self-rotation of the sampling rod and avoid deflection;
[0021] 4. The bottom of the screw cap is provided with a limiting groove and a polygonal hole from top to bottom in sequence, which facilitates the assembly of the sampling rod and the screw cap. With such a design, when it is necessary to clean the spiral blade regularly, the spiral blade can be directly and quickly disassembled and separated for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the overall soil sampling tube of the present utility model;
[0023] Figure 2 It is a schematic diagram of the inside of the soil sampling tube of the present utility model;
[0024] Figure 3 It is a schematic diagram of the sampling rod of the present utility model;
[0025] Figure 4 is Figure 2 the schematic diagram of A-A in
[0026] In the figure: 1. Sampling tube body, 2. Sampling rod, 21. Polygonal connecting column, 22. Pin hole, 3. Spiral blade, 4. Sealing cap, 5. Screw cap, 51. Limiting groove, 52. Polygonal hole, 6. Sharp cone, 7. Ring groove, 8. Slide block. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "front", "rear", "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. The present utility model will be further described below in conjunction with the drawings and embodiments.
[0029] As Figures 1-4 shown, this embodiment discloses a soil sampling tube, which mainly includes a sampling tube body 1, a sampling rod 2, a spiral blade 3, a sealing cap 4, a screw cap 5, etc. The sampling tube body 1 is made of transparent hard plastic. With such a design, not only the manufacturing cost is saved, but also the amount of soil inside can be observed, which is convenient for sampling. The sampling rod 2 and the spiral blade 3 are made of stainless steel materials, and the spiral blade 3 is welded on the rod body of the sampling rod 2.
[0030] The upper end of the sampling tube body 1 is open, and a cover 4 is connected to the open end by external threads. The sampling rod 2 is rotatably assembled inside the sampling tube body 1, and the maximum outer diameter of the spiral blade 3 is 1 mm smaller than the inner diameter of the sampling tube body 1. The upper end of the sampling rod 2 is a pointed cone 6 and extends to the outside of the open end, and the lower end of the sampling rod 2 penetrates through the bottom end of the sampling tube body 1 and extends to the outside.
[0031] A ring groove 7 is machined on the outer side wall of the lower end of the sampling tube body 1 and is polished smoothly. Three sliders 8 are machined on the inner circumferential wall of the screw cap 5, and the sliders 8 are slidably matched with the ring groove 7. For the convenience of assembly, the screw cap 5 is assembled by two split caps through a bolt assembly. A limiting groove 51 and a polygonal hole 52 are sequentially arranged on the bottom of the screw cap 5 from top to bottom. A polygonal connecting column 21 is machined at the lower end of the sampling rod 2, and a pin hole 22 is machined on the polygonal connecting column 21. When the polygonal connecting column 21 is inserted into the polygonal hole 52, a pin shaft that can pass through the pin hole 22 is inserted into the screw cap 5, so as to realize the fixed connection between the lower end of the sampling rod 2 and the screw cap 5.
[0032] The specific working process of the soil sampling tube in this embodiment is as follows:
[0033] When soil sampling is carried out, the open end of the sampling tube body 1 is inserted into the soil, and the pointed cone 6 of the sampling rod 2 is inserted into the soil to play a positioning role. While rotating the spiral blade 3 by controlling the screw cap 5, the sampling tube body 1 is slowly pushed forward, so that the soil is conveyed into the sampling tube body 1 along with the spiral blade 3. The amount of soil inside is observed through the side wall of the sampling tube body 1, so as to ensure sufficient sampling and avoid the problem of less soil in the sampling bottle in the past; thus ensuring sufficient sampling and replacing the previous method of filling the sampling bottle with a spoon or a shovel. The whole sampling process saves time and effort.
Claims
1. A soil sampling tube, characterized in that, It includes a sampling tube body, the upper end of the sampling tube body is an open mouth, and a detachable cover is assembled on the open mouth; A sampling rod is rotatably installed in the sampling tube body, and spiral blades are arranged on the rod body of the sampling rod; The lower end of the sampling tube body is assembled with a screw cap that can be fixedly connected to the sampling rod.
2. The soil sampling tube according to claim 1, wherein The upper end of the sampling rod is a sharp cone and extends to the outside of the open mouth.
3. The soil sampling tube according to claim 2, characterized in that, The maximum outer diameter of the spiral blade is 1-2 mm smaller than the inner diameter of the sampling tube body.
4. The soil sampling tube according to claim 1, wherein, A ring groove is provided on the outer side wall of the lower end of the sampling tube body; Sliding blocks that are slidably matched with the ring groove are provided on the inner circumferential wall of the screw cap.
5. The soil sampling tube according to claim 4, wherein A limiting groove and a polygonal hole are sequentially arranged on the bottom of the screw cap from top to bottom. A polygonal connecting column is provided at the lower end of the sampling rod, and a pin hole is provided on the polygonal connecting column. When the polygonal connecting column is inserted into the polygonal hole, a pin shaft that can pass through the pin hole is inserted on the screw cap.
6. The soil sampling tube according to any one of claims 1-5, characterized in that, The screw cap is assembled by two split caps through a bolt assembly.
7. The soil sampling tube according to any one of claims 1-5, characterized in that, The sampling tube body is made of transparent hard plastic, and the sampling rod and the spiral blades are made of stainless steel.