Soil layer extraction device for geological exploration
By designing a soil layer extraction device that is slidingly connected to the drill barrel and the inner cylinder, the problem of difficult to remove soft and clay soil layers in the prior art is solved, and efficient collection and convenient extraction of soil layer samples are achieved, improving the practicality of soil layer extraction.
Patent Information
- Application Number
- CN202422113818.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-29
AI Technical Summary
When extracting soft and clay soil layers, it is difficult to effectively remove soil layer samples, and it is easy to cause samples to be broken and have poor practicality.
A geological exploration soil layer extraction device is designed, including a drill barrel and an inner cylinder. The inner cylinder is slidingly connected to the drill barrel. The inner cylinder has an extraction cavity that can be opened after sliding out of the drill barrel. Combined with the limit guide bar and the connection structure, it ensures easy collection and removal of soil layer samples.
It realizes efficient collection and convenient removal of soil layer samples, ensures the thickness of a single extraction, and improves the practicality of soil layer extraction.
Smart Images
Figure CN223062437U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of soil layer extraction, and particularly relates to a geological exploration soil layer extraction device. Background Technique
[0002] Geological exploration refers to a series of geological surveys, explorations, and tests to study the geological structure, distribution of mineral resources, hydrogeological conditions, and engineering geological characteristics of the earth's surface or the underlying lithosphere, in order to provide basic information for resource development, engineering construction, environmental protection, and scientific research. For geological exploration work, the extraction of soil layers on the ground is usually involved, and a soil sampler is usually used for this purpose.
[0003] In the prior art, regarding the soil sampler, it usually has a fixed cylinder with an open end at one end. By means of manual or mechanical (drill pipe) methods, the fixed cylinder is pressed down into the soil layer to be extracted, so that the soil sample enters the cylinder cavity, and then the soil layer sample in the cylinder cavity is taken out completely for research work. However, the texture of the soil layer is soft, and for the water-containing soil layer, it will also have a certain viscosity. It is not easy to take out the soil layer sample from the cylinder cavity (usually, the longer the length, the more difficult it is to take out the soil layer sample), and external force assistance is required, such as vibration. As a result, the soil layer sample is likely to be broken during the process of being taken out of the cylinder cavity, resulting in extraction failure, poor extraction effect, and poor practicability. Summary of the Utility Model
[0004] An embodiment of the utility model provides a geological exploration soil layer extraction device, aiming to solve the problem of poor practicability of the existing soil sampler.
[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide a geological exploration soil layer extraction device, including:
[0006] A drill cylinder having a cylinder cavity with an open end at one end, and a connection structure is provided at the end of the drill cylinder away from the open end;
[0007] An inner cylinder is arranged in the cylinder cavity and is slidably connected to the cylinder cavity. The inner cylinder has an extraction cavity for the soil layer sample to enter and be stored. After the inner cylinder slides into the cylinder cavity, an opening corresponding to the extraction cavity and communicating with the open end of the drill cylinder is formed at one end of the inner cylinder. The extraction cavity can be opened after the inner cylinder slides out of the cylinder cavity.
[0008] In a possible implementation manner, a serrated structure is annularly arranged on the outer edge of the open end of the drill cylinder.
[0009] In a possible implementation manner, the connection structure includes a connecting pipe, and the connecting pipe is coaxially arranged with the drill cylinder;
[0010] Wherein, a through hole communicating with the connecting pipe is provided at the end of the drill pipe away from the open end.
[0011] In a possible implementation manner, the inner cylinder includes:
[0012] A sliding circular plate, slidably arranged in the cylinder cavity, and the axis is collinear with the axis of the cylinder cavity. A connecting column corresponding to the through hole and capable of extending out of the through hole is provided at one end of the sliding circular plate;
[0013] A fixed circular plate, parallel and spaced apart from the sliding circular plate, the axis of the fixed circular plate is collinear with the axis of the sliding circular plate, and the fixed circular plate is fixedly connected to the sliding circular plate through a fixing column;
[0014] Two semi-circular plates are provided. The two semi-circular plates are arranged at an annular interval around the axis of the sliding circular plate, and one end of each semi-circular plate is rotatably connected to the sliding circular plate. When the two semi-circular plates are flipped to be collinear with the axis of the sliding circular plate, the inner wall surfaces are in contact with the outer edge of the fixed circular plate, and together with the fixed circular plate, they enclose the extraction cavity.
[0015] In a possible implementation manner, the diameter of the through hole is smaller than the inner diameter of the connecting pipe;
[0016] Wherein, the inner cylinder further includes a limit nut threadedly connected to the connecting column. The limit nut is arranged in the connecting pipe and abuts against the end of the drill pipe.
[0017] In a possible implementation manner, limit guiding strips are provided in the cylinder cavity. There are two limit guiding strips, which are arranged at an annular interval around the axis of the cylinder cavity, and each limit guiding strip is arranged along the axis direction of the drill pipe. The two limit guiding strips are used to jointly guide the combination of the sliding circular plate, the fixed circular plate and the two semi-circular plates.
[0018] In a possible implementation manner, when the axes of the two semi-circular plates are collinear with the axis of the drill pipe, two long sliding openings for the two limit guiding strips to pass through are formed between the two semi-circular plates.
[0019] In a possible implementation manner, external threads are provided on the outer wall surface of the connecting pipe.
[0020] In this implementation method, the connection structure provided on the drill barrel can ensure connection with the drill pipe, and further ensure penetration into the soil layer. An inner barrel is slidably arranged in the barrel cavity of the drill barrel, which can ensure that the soil layer sample is collected into the extraction cavity during the process of extracting the soil layer. Moreover, the inner barrel can slide out of the barrel cavity, and the extraction cavity of the inner barrel can be opened. This structure can effectively ensure the complete removal of the soil layer sample collected in the extraction cavity, with good extraction effect, convenient removal, and can also ensure the thickness of the soil layer sample extracted at one time, with strong practicability. Description of the Drawings
[0021] Figure 1 Structural schematic of the geological exploration soil layer extraction device provided by the embodiment of the present utility model Figure 1 ;
[0022] Figure 2 Structural schematic of the geological exploration soil layer extraction device provided by the embodiment of the present utility model Figure 2 (Inner barrel slides out and opens);
[0023] Figure 3 Cross-sectional structural schematic of the geological exploration soil layer extraction device provided by the embodiment of the present utility model;
[0024] Description of the reference numerals:
[0025] 10. Drill barrel; 11. Serrated structure; 12. Connection structure; 13. Limit guiding strip; 20. Inner barrel; 21. Sliding circular plate; 22. Fixed circular plate; 23. Semi-circular plate; 24. Connecting column; 25. Limit nut; 26. Long strip sliding opening; 27. Extraction cavity. Detailed implementation method
[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0027] Please refer to Figure 1 and Figure 2 simultaneously, and now the geological exploration soil layer extraction device provided by the present utility model will be described. The geological exploration soil layer extraction device includes a drill barrel 10 and an inner barrel 20. The drill barrel 10 has a barrel cavity with one end being open, and a connection structure 12 is provided at the end of the drill barrel 10 away from the open end. The inner barrel 20 is arranged in the barrel cavity and is slidably connected to the barrel cavity. The inner barrel 20 has an extraction cavity 27 for the soil layer sample to enter and be stored. After the inner barrel 20 slides into the barrel cavity, an opening corresponding to the extraction cavity 27 and the open end of the drill barrel 10 is formed at one end of the inner barrel 20, and the extraction cavity 27 can be opened after the inner barrel 20 slides out of the barrel cavity.
[0028] Compared with the prior art, the geological exploration soil layer extraction device provided by this embodiment has a connection structure 12 provided on the drill cylinder 10, which can ensure connection with the drill pipe, and thus ensure penetration into the soil layer. An inner cylinder 20 is slidably arranged in the cylinder cavity of the drill cylinder 10, which can ensure that soil samples are collected in the extraction cavity 27 during the process of extracting the soil layer. Moreover, the inner cylinder 20 can slide out of the cylinder cavity, and the extraction cavity 27 of the inner cylinder 20 can be opened. This structure can effectively ensure the complete removal of the soil samples collected in the extraction cavity 27, with good extraction effect, convenient removal, and can also ensure the thickness of a single extraction of soil samples, and has strong practicability.
[0029] In some embodiments, the above-mentioned drill cylinder 10 can adopt a structure as Figure 1 shown. Refer to Figure 1 , a serrated structure 11 is annularly arranged on the outer edge of the open end of the drill cylinder 10.
[0030] The serrated structure 11 can ensure the rotary drilling efficiency and facilitate the improvement of the extraction efficiency of soil samples.
[0031] In some embodiments, the above-mentioned connection structure 12 can adopt a structure as Figure 1 shown. Refer to Figure 1 , the connection structure 12 includes a connecting pipe, and the connecting pipe is coaxially arranged with the drill cylinder 10.
[0032] Among them, a through hole communicating with the connecting pipe is provided at the end of the drill cylinder 10 away from the open end.
[0033] The setting of the connecting pipe can ensure convenient connection with the drill pipe, and the setting of the through hole can ensure that after the extraction of soil samples is completed, the inner cylinder 20 is pushed out of the cylinder cavity through tools such as a push rod passing through the through hole, with convenient operation and can ensure the extraction effect of soil samples.
[0034] In some embodiments, the above-mentioned inner cylinder 20 can adopt a structure as Figures 2 to 3 shown. Refer to Figures 2 to 3 , the inner cylinder 20 includes a sliding circular plate 21, a fixed circular plate 22 and a semi-circular plate 23. The sliding circular plate 21 is slidably arranged in the cylinder cavity, and its axis is collinear with the axis of the cylinder cavity. One end of the sliding circular plate 21 is provided with a connecting column 24 corresponding to the through hole and capable of extending out of the through hole. The fixed circular plate 22 is parallel and spaced from the sliding circular plate 21, and the axis of the fixed circular plate 22 is collinear with the axis of the sliding circular plate 21, and the fixed circular plate 22 is fixedly connected to the sliding circular plate 21 through a fixed column. There are two semi-circular plates 23, and the two semi-circular plates 23 are annularly spaced around the axis of the sliding circular plate 21. One end of each semi-circular plate 23 is rotatably connected to the sliding circular plate 21. When the two semi-circular plates 23 can be flipped to make their axes collinear with the axis of the sliding circular plate 21, the inner wall surfaces are in contact with the outer edge of the fixed circular plate 22 and enclose the extraction cavity 27 with the fixed circular plate 22.
[0035] The connecting column 24 provided on the sliding circular plate 21 can ensure connection with external tools such as push rods, and can ensure rotational connection for the two semi-circular plates 23, facilitating the flipping and opening of the two semi-circular plates 23 and the formation of the extraction cavity 27. The fixed circular plate 22 can ensure shielding of the hinge parts of the semi-circular plates 23 to prevent soil entry. Additionally, the fixed circular plate 22 can limit the two semi-circular plates 23 to ensure that after the two semi-circular plates 23 are flipped relative to each other, the axes of the two semi-circular plates 23 are collinear with the axis of the sliding circular plate 21.
[0036] In some embodiments, the above-mentioned inner cylinder 20 can adopt a structure as Figure 3 shown. Refer to Figure 3 , the diameter of the through hole is smaller than the inner diameter of the connecting pipe.
[0037] Specifically, the inner cylinder 20 further includes a limit nut 25 threadedly connected to the connecting column 24. The limit nut 25 is arranged in the connecting pipe and abuts against the end of the drill cylinder 10.
[0038] The setting of the limit nut 25 can ensure threaded connection with the connecting column 24, and then be clamped at the end of the drill cylinder 10, which can ensure the fixation of the position of the inner cylinder 20, and further ensure the stability of the inner cylinder 20 after entering the cylinder cavity, and ensure the effect of the soil layer extraction work.
[0039] After the soil layer is extracted, the limit nut 25 can be removed first with a wrench, and then a tool such as a push rod is connected to the connecting column 24 to push the inner cylinder 20 out of the cylinder cavity.
[0040] In some embodiments, the above-mentioned cylinder cavity can adopt a structure as Figure 2 and Figure 3 shown. Refer to Figure 2 and Figure 3 , the cylinder cavity is provided with limit guiding strips 13. There are two limit guiding strips 13, and the two limit guiding strips 13 are annularly spaced around the axis of the cylinder cavity, and each limit guiding strip 13 is arranged along the axis direction of the drill cylinder 10. The two limit guiding strips 13 can jointly guide the combination of the sliding circular plate 21, the fixed circular plate 22 and the two semi-circular plates 23.
[0041] The limit guiding strips 13 can limit the inner cylinder 20 in the circumferential direction of the cylinder cavity to prevent relative rotation between the inner cylinder 20 and the drill cylinder 10. At the same time, it can ensure guiding the inner cylinder 20 in the axial direction of the cylinder cavity, and can ensure the stable sliding of the inner cylinder 20 into or out of the cylinder cavity.
[0042] In some embodiments, the above-mentioned semi-circular plate 23 can adopt a structure as Figure 3 shown. Refer to Figure 3When the axes of the two semi-circular plates 23 are collinear with the axis of the drill tube 10, two long sliding openings 26 for the two limit guiding strips 13 to pass through respectively are formed between the two semi-circular plates 23.
[0043] The two semi-circular plates 23 in this embodiment have the same structure. The radian of each semi-circular plate 23 is less than π. The two semi-circular plates 23 and the two limit guiding strips 13 can enclose to form a complete cylindrical structure, which can ensure the extraction effect of soil samples. In addition, this structure can further limit the two semi-circular plates 23, with a simple structure and being easy to manufacture.
[0044] In some embodiments, the above connecting pipe can adopt the structure as Figure 1 shown. Refer to Figure 1 , external threads are provided on the outer wall surface of the connecting pipe.
[0045] The external threads can ensure the threaded connection with the drill pipe, with convenient connection. At the same time, this structure can ensure the sealing of the lumen of the connecting pipe after being connected to the drill pipe, avoiding the accidental entry of soil.
[0046] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. Geological exploration soil layer extraction device, characterized in that, Comprising: A drill pipe having a cylindrical cavity with one end open, and a connection structure is provided at the end of the drill pipe away from the open end; the connection structure includes a connecting pipe coaxially arranged with the drill pipe; a through hole communicating with the connecting pipe is provided at the end of the drill pipe away from the open end. An inner cylinder is arranged in the cylindrical cavity and is slidably connected to the cylindrical cavity. The inner cylinder has an extraction cavity for the soil sample to enter and be stored. After the inner cylinder slides into the cylindrical cavity, an opening communicating with the extraction cavity and corresponding to the open end of the drill pipe is formed at one end of the inner cylinder. The extraction cavity can be opened after the inner cylinder slides out of the cylindrical cavity. Wherein, the inner cylinder includes a sliding circular plate, a fixed circular plate and a semi-circular plate; the sliding circular plate is slidably arranged in the cylindrical cavity, and the axis is collinear with the axis of the cylindrical cavity. A connecting column corresponding to the through hole and capable of extending out of the through hole is provided at one end of the sliding circular plate. The fixed circular plate is parallel and spaced apart from the sliding circular plate. The axis of the fixed circular plate is collinear with the axis of the sliding circular plate, and the fixed circular plate is fixedly connected to the sliding circular plate through a fixing column; there are two semi-circular plates. The two semi-circular plates are annularly spaced around the axis of the sliding circular plate. One end of each semi-circular plate is rotatably connected to the sliding circular plate. When the two semi-circular plates are flipped to make their axes collinear with the axis of the sliding circular plate, the inner wall surfaces abut against the outer edge of the fixed circular plate, and together with the fixed circular plate, they enclose the extraction cavity.
2. The geological exploration soil layer extraction device according to claim 1, characterized in that, A serrated structure is annularly provided on the outer eaves at the open end of the drill pipe.
3. The geological exploration soil layer extraction device according to claim 1, characterized in that, The diameter of the through hole is smaller than the inner diameter of the connecting pipe. Wherein, the inner cylinder further includes a limit nut threadedly connected to the connecting column. The limit nut is arranged in the connecting pipe and abuts against the end of the drill pipe.
4. The geological exploration soil layer extraction device according to claim 1, characterized in that, Limit guiding strips are provided in the cylindrical cavity. There are two limit guiding strips, which are annularly spaced around the axis of the cylindrical cavity, and each limit guiding strip is arranged along the axial direction of the drill pipe. The two limit guiding strips are used to jointly guide the combination of the sliding circular plate, the fixed circular plate and the two semi-circular plates.
5. The geological exploration soil layer extraction device according to claim 4, characterized in that, When the axes of the two semi-circular plates are collinear with the axis of the drill pipe, two long sliding openings for the two limit guiding strips to pass through respectively are formed between the two semi-circular plates.
6. The geological exploration soil layer extraction device according to claim 1, characterized in that, External threads are provided on the outer wall surface of the connecting pipe.