Investigation sampling tool for unconsolidated formation

Abstract

The utility model discloses a sampling tool for unconsolidated formation exploration, and belongs to the technical field of geological exploration. Comprising a sampling barrel, a semicircular plate is coaxially fixed to the lower end of the telescopic sampling barrel, a sampling opening is formed between the semicircular plate and the sampling barrel, a semicircular rod is arranged in the sampling barrel in a sleeved mode, the semicircular rod is rotatably arranged in the sampling barrel, a half conical head is coaxially fixed to the lower end of the semicircular plate, and the sampling barrel and the semicircular rod can be fixed. The technical effects that loose soil can be conveniently sampled, and falling is avoided are achieved.

Description

Technical Field

[0001] This application relates to the technical field of geological exploration, and more specifically, to a sampling tool for loose stratum exploration. Background Art

[0002] Geological exploration is to investigate some geology such as rocks, stratigraphic structures, minerals, groundwater, landforms, etc. in a certain area, and a sampler is required for sampling during the investigation. Different samplers are selected for sampling different samples during geological exploration. Most of the samplers selected for sampling silt are of an integrated semi-closed structure. During the process of sampling silt, the silt will adhere to the sampler, making it inconvenient to take out the sample.

[0003] The prior art document with the publication number of CN 219935367 U provides a geological exploration sampler. This device cooperates with an arc plate and a limit plate. Through the rotation of the arc plate and the limitation of the limit plate, it is convenient to sample silt and take out the sample after sampling; the cylinder, the arc plate and the protective sleeve are detachable, which is convenient for carrying and cleaning.

[0004] Although the above prior art solution can achieve relevant beneficial effects through the structure of the prior art, there are still the following defects: When the device is in use, the silt has a certain fluidity. When the arc plate is inserted into the silt, the silt can flow into the groove of the arc plate. However, when sampling a loose but less fluid bottom layer, when the cone bottom block is inserted into the soil, a circular pipe well will be formed. The loose sand is squeezed by the cone bottom block and it is difficult to flow or fall into the groove of the arc plate, which leads to the problem that the arc plate cannot sample.

[0005] In view of this, we propose a sampling tool for loose stratum exploration. Utility Model Content

[0006] 1. Technical Problems to be Solved

[0007] The purpose of this application is to provide a sampling tool for loose stratum exploration, which solves the technical problems in the above background art and achieves the technical effects of being convenient for sampling loose soil and avoiding dropping.

[0008] 2. Technical Solutions

[0009] The technical solution of this application provides a sampling tool for loose stratum exploration, including: a sampling cylinder, a semi-circular plate is coaxially fixed at the lower end of the retractable sampling cylinder, a sampling port is formed between the semi-circular plate and the sampling cylinder, a semi-circular rod is sleeved in the sampling cylinder, the semi-circular rod is rotatably arranged in the sampling cylinder, a semi-cone head is coaxially fixed at the lower end of the semi-circular plate, and the sampling cylinder and the semi-circular rod can be fixed.

[0010] By adopting the above technical solution, rotate the sampling cylinder so that the semi-circular plate is received in the semi-circular rod, the plane sides of the semi-cone head and the semi-circular rod are coplanar and are placed on one side of the sampling port. At this time, the sampling port is in an open state. Insert the sampling cylinder into the loose formation where sampling is required. The semi-cone head facilitates the insertion of the sampling cylinder into the soil layer. Fix the semi-circular rod on the soil layer. Then rotate the sampling cylinder 180 degrees. At this time, sampling is completed. The sampled loose soil is placed in the sampling cylinder. Then pull the whole upward to facilitate the sampling of loose soil and silt and avoid the dropping of the sample.

[0011] As an alternative solution of the technical solution of this application document, a central shaft is coaxially fixed to the semi-circular rod. A ring groove adapted to the semi-circular plate is reserved at one end of the semi-circular rod close to the semi-cone head. A T-shaped shaft is coaxially fixed to the end of the central shaft away from the semi-cone head. The sampling cylinder is rotatably arranged on the T-shaped shaft.

[0012] By adopting the above technical solution, the central shaft is used to fixedly connect the semi-circular rod and the semi-cone head. And a groove adapted to the central shaft is provided on the semi-circular plate. When the semi-circular plate is received in the ring groove by rotating the sampling cylinder, the sampling port is in an open state at this time. And through the cooperation of the T-shaped shaft and the sampling cylinder, the coaxial rotational connection between the sampling cylinder and the semi-circular rod is realized.

[0013] As an alternative solution of the technical solution of this application document, a locking screw is installed at the upper end of the sampling cylinder. The upper end of the semi-circular rod is of a cylindrical structure and is symmetrically provided with threaded holes corresponding to the locking screw and threadedly connected thereto.

[0014] By adopting the above technical solution, when the locking screw is threadedly connected to the threaded hole on the right side, the sampling port is in an open state at this time to avoid the closing of the sampling port caused by the self-rotation of the semi-circular rod during the sampling process. When the locking screw is threadedly connected to the threaded hole on the left side, the semi-circular plate is placed on the plane side of the semi-circular rod, and the sampling port is closed. At this time, the sampled material is placed in the sampling cylinder to avoid the dropping of the internal sampled material caused by the self-rotation of the semi-circular rod when it is pulled out after sampling is completed.

[0015] As an alternative solution of the technical solution of this application document, an L-shaped insertion rod is vertically fixed to one end of the semi-circular rod. The sampling cylinder is provided with a strip-shaped hole adapted to the L-shaped insertion rod. The sampling cylinder is symmetrically fixed with handles.

[0016] By adopting the above technical solution, the cross bar of the L-shaped insertion rod is vertically fixed to the semi-circular rod, and the vertical rod is a conical head to facilitate the insertion of the L-shaped insertion rod into the soil. Then by rotating the handle, the handle is rotated 180 degrees counterclockwise. The cross bar of the L-shaped insertion rod slides along the strip-shaped hole to avoid interference. Under the joint action of the L-shaped insertion rod and the semi-circular rod, an inverted U-shaped structure is formed to prevent the semi-circular rod from rotating when the sampling cylinder rotates.

[0017] As an alternative solution to the technical solution of this application document, when in the sampling state, the handle is perpendicular to the crossbar of the L-shaped rod.

[0018] By adopting the above technical solution, when in the sampling state, that is, when the sampling port is open, the handle and the crossbar of the L-shaped rod are in a perpendicular state, so that when the L-shaped rod is inserted into the soil, it is convenient to step on the crossbar of the L-shaped rod to apply force.

[0019] 3. Beneficial effects

[0020] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0021] 1. In this application, by rotating the sampling cylinder, the semi-circular plate is received in the semi-circular rod, the semi-cone head and the flat side of the semi-circular rod are coplanar and placed on one side of the sampling port. At this time, the sampling port is in an open state. Insert the sampling cylinder into the loose stratum where sampling is required. The semi-cone head facilitates the insertion of the sampling cylinder into the soil layer, and fixes the semi-circular rod on the soil layer. Then rotate the sampling cylinder 180 degrees. At this time, sampling is completed, and the sampled loose soil is placed in the sampling cylinder. Then pulling the whole upward can facilitate the sampling of loose soil and silt and avoid the sampling from falling.

[0022] 2. In this application, when the locking screw is threadedly connected to the threaded hole on the right side, the sampling port is in an open state at this time to prevent the sampling port from being closed due to the self-rotation of the semi-circular rod during the sampling process. When the locking screw is threadedly connected to the threaded hole on the left side, the semi-circular plate is placed on the flat side of the semi-circular rod at this time, and the sampling port is closed. The sampled material is placed in the sampling cylinder at this time to prevent the sampled material inside from falling due to the self-rotation of the semi-circular rod when pulling out after sampling is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the overall sampling state structure of a loose stratum exploration sampling tool disclosed in a preferred embodiment of this application;

[0024] Figure 2 Schematic diagram of the overall bottom structure of a loose stratum exploration sampling tool disclosed in a preferred embodiment of this application;

[0025] Figure 3 For a loose stratum exploration sampling tool disclosed in a preferred embodiment of this application Figure 2 Enlarged structure schematic diagram at A;

[0026] Figure 4 Schematic diagram of the semi-circular rod structure of a loose stratum exploration sampling tool disclosed in a preferred embodiment of this application;

[0027] Figure 5Schematic diagram of the sampling cylinder structure of a sampling tool for loose stratum exploration disclosed in a preferred embodiment of the present application;

[0028] Figure 6 Schematic diagram of the bottom structure of the sampling cylinder of a sampling tool for loose stratum exploration disclosed in a preferred embodiment of the present application;

[0029] Figure 7 Schematic diagram of the completed sampling structure of a sampling tool for loose stratum exploration disclosed in a preferred embodiment of the present application;

[0030] Description of the reference numerals in the figure: 1. Sampling cylinder; 101. Strip-shaped hole; 102. Handle; 103. Locking screw; 2. Semi-circular rod; 201. Ring groove; 202. L-shaped insertion rod; 203. Threaded hole; 204. T-shaped shaft; 3. Semi-cone head; 4. Semi-circular plate; 401. Sampling port; 5. Central axis. Detailed implementation manners

[0031] The present application will be further described in detail below with reference to the accompanying drawings of the specification.

[0032] A sampling tool for loose stratum exploration includes: a sampling cylinder 1, a semi-circular plate 4 is coaxially fixed at the lower end of the contracted sampling cylinder 1, a sampling port 401 is formed between the semi-circular plate 4 and the sampling cylinder 1, a semi-circular rod 2 is sleeved in the sampling cylinder 1, the semi-circular rod 2 is rotatably arranged in the sampling cylinder 1, a semi-cone head 3 is coaxially fixed at the lower end of the semi-circular plate 4, and the sampling cylinder 1 and the semi-circular rod 2 can be fixed.

[0033] Refer to Figures 1-7 , rotate the sampling cylinder 1 so that the semi-circular plate 4 is received in the semi-circular rod 2, the plane sides of the semi-cone head 3 and the semi-circular rod 2 are coplanar and are located on one side of the sampling port 401. At this time, the sampling port 401 is in an open state (as shown in Figure 2 and Figure 3 ), insert the sampling cylinder 1 into the loose stratum where sampling is required. The semi-cone head 3 facilitates the insertion of the sampling cylinder 1 into the soil layer. Fix the semi-circular rod 2 on the soil layer, and then rotate the sampling cylinder 1 by 180 degrees (as shown in Figure 7 ). At this time, the sampling is completed, and the sampled loose soil is placed in the sampling cylinder 1. Then, the whole is pulled out upward, which is convenient for sampling loose soil and silt and avoids the sampling from falling.

[0034] A central axis 5 is coaxially fixed on the semi-circular rod 2. A ring groove 201 adapted to the semi-circular plate 4 is reserved at one end of the semi-circular rod 2 close to the semi-cone head 3. A T-shaped shaft 204 is coaxially fixed at one end of the central axis 5 away from the semi-cone head 3. The sampling cylinder 1 is rotatably arranged on the T-shaped shaft 204.

[0035] Refer to Figure 3 and Figure 4 and Figure 6, the central shaft 5 is used for fixedly connecting the semi-circular rod 2 and the semi-cone head 3, and the semi-circular plate 4 is provided with a groove adapted to the central shaft 5. When the sampling cylinder 1 is rotated so that the semi-circular plate 4 is received in the annular groove 201, the sampling port 401 is in an open state at this time. And through the cooperation of the T-shaped shaft 204 and the sampling cylinder 1, the coaxial rotational connection between the sampling cylinder 1 and the semi-circular rod 2 is realized.

[0036] A locking screw 103 is installed at the upper end of the sampling cylinder 1. The upper end of the semi-circular rod 2 is of a cylindrical structure and is symmetrically provided with threaded holes 203 corresponding to and threadedly connected to the locking screw 103.

[0037] Refer to Figure 4 and Figure 5 , when the locking screw 103 is threadedly connected to the threaded hole 203 on the right side, the sampling port 401 is in an open state at this time, so as to prevent the sampling port 401 from being closed due to the self-rotation of the semi-circular rod 2 during the sampling process. When the locking screw 103 is threadedly connected to the threaded hole 203 on the left side, the semi-circular plate 4 is placed on the flat side of the semi-circular rod 2 at this time, and the sampling port 401 is closed. The sampled material is placed in the sampling cylinder 1 at this time, so as to prevent the sampled material inside from falling due to the self-rotation of the semi-circular rod 2 when it is pulled out after sampling is completed.

[0038] An L-shaped insertion rod 202 is vertically fixed at one end of the semi-circular rod 2. The sampling cylinder 1 is provided with a strip-shaped hole 101 adapted to the L-shaped insertion rod 202, and the sampling cylinder 1 is symmetrically fixed with handles 102.

[0039] Refer to Figure 1 and Figure 4 and Figure 5 , the cross bar of the L-shaped insertion rod 202 is vertically fixed to the semi-circular rod 2, and the vertical rod is a conical head, so as to facilitate inserting the L-shaped insertion rod 202 into the soil. Then, by rotating the handle 102, the handle 102 is rotated counterclockwise by 180 degrees. The cross bar of the L-shaped insertion rod 202 slides along the strip-shaped hole 101 to avoid interference, so as to form an inverted U-shaped structure under the combined action of the L-shaped insertion rod 202 and the semi-circular rod 2, so as to prevent the semi-circular rod 2 from rotating when the sampling cylinder 1 rotates.

[0040] When in the sampling state, the handle 102 is perpendicular to the cross bar of the L-shaped insertion rod 202.

[0041] Refer to Figure 1 , in the sampling state, that is, when the sampling port 401 is in an open state, the handle 102 and the cross bar of the L-shaped insertion rod 202 are in a perpendicular state, so that when the L-shaped insertion rod 202 is inserted into the soil, it is convenient to step on the cross bar of the L-shaped insertion rod 202 to apply force.

[0042] Working principle: Rotate the sampling cylinder 1 so that the semi-circular plate 4 is received in the annular groove 201. The locking screw 103 is threadedly connected to the threaded hole 203 on the right side. The handle 102 and the cross bar of the L-shaped insertion rod 202 are in a vertical state. At this time, the sampling port 401 is in an open state. Then, insert the sampling cylinder 1 and the semi-conical head 3 into the loose soil layer through the handle 102, and sample in the space between the sampling cylinder 1 and the semi-circular rod 2. Step on the cross bar of the L-shaped insertion rod 202 and insert it into the soil. Then loosen the locking screw 103 and rotate the handle 102 counterclockwise so that the locking screw 103 corresponds to the threaded hole 203 on the left side and is threadedly connected. At this time, the semi-circular plate 4 is screwed out of the annular groove 201, and the sampling port 401 is screwed into one side of the semi-circular rod 2. Subsequently, pull it out upward through the handle 102.

Claims

1. A loose stratum exploration and sampling tool, characterized in that: include: A sampling tube (1), wherein a semicircular plate (4) is coaxially fixed to the lower end of the retractable sampling tube (1), a sampling port (401) is formed between the semicircular plate (4) and the sampling tube (1), a semicircular rod (2) is sleeved inside the sampling tube (1), the semicircular rod (2) is rotatably arranged inside the sampling tube (1), a semi-conical head (3) is coaxially fixed to the lower end of the semicircular plate (4), and the sampling tube (1) and the semicircular rod (2) can be fixed; The semicircular rod (2) is coaxially fixed with a central axis (5); an annular groove (201) adapted to the semicircular plate (4) is reserved at one end of the semicircular rod (2) close to the semiconical head (3); a T-shaped axis (204) is coaxially fixed at one end of the central axis (5) away from the semiconical head (3); and the sampling tube (1) is rotatably arranged on the T-shaped axis (204).

2. A loose formation exploration and sampling tool according to claim 1, characterized in that: A locking screw (103) is installed at the upper end of the sampling tube (1); the upper end of the semicircular rod (2) is a cylindrical structure and is symmetrically provided with threaded holes (203) corresponding to the locking screw (103) and threadedly connected.

3. A loose formation exploration and sampling tool according to claim 1, characterized in that: An L-shaped plug rod (202) is vertically fixed to one end of the semicircular rod (2), the sampling tube (1) is provided with a strip-shaped hole (101) adapted to the L-shaped plug rod (202), and a handle (102) is symmetrically fixed to the sampling tube (1).

4. A loose formation survey sampling tool according to claim 3, characterized in that: In the sampling state, the handle (102) is perpendicular to the crossbar of the L-insertion rod (202).

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