Columnar sampling device

Abstract

The utility model discloses a columnar sampling device which comprises a flat tail, a sampling tube handle, a sampling mother tube and a plurality of first spherical tooth hobs, the flat tail is arranged on the upper wall surface of the sampling tube handle, the sampling mother tube is arranged on the lower wall surface of the sampling tube handle, and the first spherical tooth hobs are arranged on the sampling mother tube. The plurality of first spherical tooth hobs are spirally arranged on the outer side wall of the sampling main pipe, and a lifting structure is arranged on the outer side wall of the sampling pipe handle. The utility model relates to the technical field of sampling, the sampling mother pipe and the sampling son pipe are connected in a plug-in mounting manner, the lifting platform and the sampling pipe handle are respectively provided with two pairs of pin holes, and the pin joint manner is adopted, so that the connection speed can be increased, and the sampling efficiency can be improved; a first spherical tooth hob and a second spherical tooth hob can enable the sampling device to break a soil layer and a rock layer more easily for collection; the sampling sub-tube can increase the sampling depth; and the lifting structure can pull out the sampling mother pipe and the sampling son pipe from the sampled object, so that manpower and time are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling, in particular to a columnar sampling device. Background Art

[0002] Underwater sediments, lake sediments, ice structure, soil environment, etc. are of great significance in revealing environmental changes and sedimentation processes. Their sampling often requires maintaining the original properties of the samples, such as the original stratigraphic sequence and sediment thickness, as well as possible. Currently, soil samplers are mainly divided into two types: grab type and columnar type. The grab sampler has a simple structure, but it causes great disturbance to the sample and the sampling depth is limited. It is generally used to collect soil surface samples; the columnar sampler obtains soil samples by vertically inserting it into the soil. Generally, columnar samplers cannot collect harder soil or rocks, which can easily cause damage to the sampler and make it impossible to sample the rock layer.

[0003] For example, the comparative document with publication number CN205861379U provides a columnar sampling device, including an outer tube, an inner tube is provided inside the outer tube, a circular top plate for bearing force is installed on the top of the outer tube, a tip bayonet is installed at the bottom of the outer tube, a blade is provided on the edge of the tip bayonet, and the inner wall diameter of the tip bayonet is the same as the diameter of the inner tube; a force ring is provided on the outer wall of the outer tube, the edge of the circular top plate is in contact with the force ring, and a shock-absorbing device is provided between the circular top plate and the inner tube. The sampling tube of the device is a fixed structure, the length of the sampling tube cannot be increased, and the sampling depth is limited; at the same time, there are no cutting tools such as ball tooth hobs on the outer wall of the device, and it is impossible to break the harder soil layer and rock layer, resulting in the inability to sample the harder soil layer or rock layer. Utility Model Content

[0004] In view of the deficiencies of the prior art, the present invention provides a columnar sampling device, which solves the problems of the prior art columnar sampling device having limited sampling depth and being unable to sample soil layers or rock layers with relatively hard textures.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a columnar sampling device, including a flat tail, a sampling tube handle, a sampling mother tube and a plurality of first ball tooth hobs, the flat tail is arranged on the upper wall surface of the sampling tube handle, the sampling mother tube is arranged on the lower wall surface of the sampling tube handle, the plurality of first ball tooth hobs are arranged on the outer side wall of the sampling mother tube in a spiral arrangement, and a lifting structure is provided on the outer side wall of the sampling tube handle.

[0006] Preferably, the lifting structure includes a lifting platform, two pairs of multi-stage hydraulic cylinders, a lifting platform base and two pairs of support columns, the two pairs of support columns are arranged on the lower wall surface of the lifting platform base, the two pairs of multi-stage hydraulic cylinders are arranged on the upper wall surface of the lifting platform base, the telescopic ends of the two pairs of mutually symmetrical multi-stage hydraulic cylinders are connected to the lifting platform, and two pairs of first pin holes are arranged on the outer wall of the lifting platform.

[0007] Preferably, a sampling sub-tube is spliced onto the bottom of the sampling main tube, and a plurality of the second ball-toothed cutters are arranged in a spiral manner on the outer side wall of the sampling sub-tube.

[0008] Preferably, two pairs of second pin holes are provided on the outer side wall of the sampling tube handle.

[0009] Preferably, two pairs of first slots are provided on the lower wall surface of the sampling main tube.

[0010] Preferably, two pairs of second slots are provided on the lower wall surface of the sampling outer tube, and two pairs of plugs are provided on the upper wall surface of the sampling outer tube.

[0011] Beneficial effects

[0012] The utility model provides a columnar sampling device with the following beneficial effects:

[0013] The present invention provides a columnar sampling device with a sampling main tube arranged on the lower wall of the sampling tube handle, a plurality of first ball-toothed cutters arranged on the outer wall of the sampling main tube in a spiral arrangement, the bottom of the sampling main tube can be spliced with a sampling sub-tube, a plurality of second ball-toothed cutters are arranged on the outer wall of the sampling sub-tube in a spiral arrangement, two pairs of first slots are provided on the lower wall of the sampling main tube, two pairs of second slots are provided on the lower wall of the sampling sub-tube, and two pairs of plugs are provided on the upper wall of the sampling sub-tube. The first ball-toothed cutters and the second ball-toothed cutters can make it easier for the sampling device to break through harder soil and rock layers for collection, increase the number of sampling sub-tubes, and increase the sampling depth. The plug-in structure of the sampling main tube and the sampling sub-tube can speed up the splicing speed and improve the sampling efficiency.

[0014] A columnar sampling device is provided with a lifting structure, two pairs of support columns are arranged on the lower wall of the lifting platform base, two pairs of multi-stage hydraulic cylinders are arranged on the upper wall of the lifting platform base, the telescopic ends of the two pairs of multi-stage hydraulic cylinders are connected to the lifting platform, two pairs of first pin holes are provided on the outer wall of the lifting platform, and two pairs of second pin holes are provided on the outer wall of the sampling tube handle. The pin holes can increase the connection speed between the lifting structure and the sampling tube handle, improve the sampling efficiency, and the lifting structure can relatively easily pull out the sampling main tube and the sampling sub-tube from the sampled object, saving manpower and time, and also improving the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the sampling mother tube of the present invention.

[0016] Figure 2 It is a schematic diagram of the lifting structure of the utility model.

[0017] Figure 3 This is a schematic diagram of the sampling sub-tube of the present invention.

[0018] Figure 4 This is a bottom view of the sampling mother tube of the present invention.

[0019] Figure 5 This is a top view of the sampling sub-tube of the present invention.

[0020] Figure 6 This is a bottom view of the sampling sub-tube of the present invention.

[0021] In the figure: 1. Flat tail; 2. Sampling tube handle; 3. Second pin hole; 4. Sampling main tube; 5. First pin hole; 6. Lifting platform; 7. Multi-stage hydraulic cylinder; 8. Lifting platform base; 9. Support column; 10. First slot; 11. Sampling tube; 12. Plug; 13. Second slot; 14. First ball gear hob; 15. Second ball gear hob. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-6 The utility model provides a technical solution: a columnar sampling device, comprising a flat tail 1, a sampling tube handle 2, a sampling mother tube 4, and a plurality of first ball-toothed hobs 14, wherein the flat tail 1 is arranged on the upper wall surface of the sampling tube handle 2, the sampling mother tube 4 is arranged on the lower wall surface of the sampling tube handle 2, the plurality of first ball-toothed hobs 14 are arranged in a spiral arrangement on the outer side wall of the sampling mother tube 4, and a lifting structure is provided on the outer side wall of the sampling tube handle 2;

[0024] The flat tail 1 can increase the torque transmitted when connected to the main shaft hole, preventing the sampling device from falling off from the main shaft hole;

[0025] The first ball-toothed cutter 14 provided on the sampling main tube 4 can more easily break through the harder soil and rock layers, thereby expanding the sampling range and increasing the sampling depth.

[0026] Furthermore, the lifting structure includes a lifting platform 6, two pairs of multi-stage hydraulic cylinders 7, a lifting platform base 8 and two pairs of support columns 9, the two pairs of support columns 9 are arranged on the lower wall surface of the lifting platform base 8, the two pairs of multi-stage hydraulic cylinders 7 are arranged on the upper wall surface of the lifting platform base 8, the telescopic ends of the two pairs of multi-stage hydraulic cylinders 7 are connected to the lifting platform 6, the outer wall of the lifting platform 6 is provided with two pairs of first pin holes 5, and the outer wall of the sampling tube handle 2 is provided with two pairs of second pin holes 3;

[0027] The use of the first pin hole 5 and the second pin hole 3 can speed up the connection between the sampling tube handle 2 and the lifting platform 6, thereby increasing the collection efficiency;

[0028] The multi-stage hydraulic cylinder 7 controls the lifting and lowering of the sampling tube handle 2 on the lifting platform 6 by lifting the lifting platform 6, and then controls the lifting and lowering of the sampling mother tube 4 on the sampling tube handle 2. The sampling mother tube 4 and the sampling sub-tube 11 can be pulled out from the sampled object relatively easily, saving manpower and time and improving sampling efficiency.

[0029] Furthermore, a sampling sub-tube 11 is inserted into the bottom of the sampling main tube 4, and a plurality of ball-toothed cutters 14 are arranged in a spiral manner on the outer wall of the sampling sub-tube 11. Two pairs of first slots 10 are provided on the lower wall of the sampling main tube 4, two pairs of second slots 13 are provided on the lower wall of the sampling sub-tube 11, and two pairs of plugs 12 are provided on the upper wall of the sampling sub-tube 11.

[0030] The sampling tube 11 can increase the sampling depth;

[0031] The two pairs of first slots 10 set on the lower wall of the sampling main tube 4 and the two pairs of plugs 12 set on the upper wall of the sampling sub-tube 11 are plugged into each other to connect the sampling main tube 4 and the sampling sub-tube 11. The plug-in method can speed up the splicing speed and thereby increase the sampling efficiency.

[0032] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process.

[0033] Implementation example: When sampling, several sampling sample tubes 11 are inserted on the lower wall of the sampling main tube 4 according to the required sampling depth. The insertion connection method can speed up the connection speed of the sampling main tube 4 and the sampling sample tube 11. The several first ball tooth rollers 14 on the sampling main tube 4 and the several second ball tooth rollers 15 on the sampling sample tube 11 can more easily break the soil layer and rock layer, thereby increasing the sampling depth. After the sampling is completed, the pins are inserted into the second pin holes 3 on the sampling tube handle 2 and the first pin holes 5 on the lifting platform 6 in sequence to fix the sampling tube handle 2 and the lifting platform 6. The lifting platform 6 is lifted by the multi-stage hydraulic cylinder 7, and then the sampling main tube 2 connected to the sampling tube handle 2 and the sampling sample tube 11 inserted into the sampling main tube 2 are lifted. The sampling main tube and the two sampling sample tubes 11 can be relatively easily pulled out from the sampled object, saving manpower and time, and also improving the sampling efficiency.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A columnar sampling device, characterized in that: The invention comprises a flat tail (1), a sampling tube handle (2), a sampling mother tube (4), and a plurality of first ball tooth hobs (14); the flat tail (1) is arranged on the upper wall surface of the sampling tube handle (2); the sampling mother tube (4) is arranged on the lower wall surface of the sampling tube handle (2); the plurality of first ball tooth hobs (14) are arranged on the outer side wall of the sampling mother tube (4) in a spiral arrangement; and a lifting structure is provided on the outer side wall of the sampling tube handle (2); The lifting structure comprises a lifting platform (6), two pairs of multi-stage hydraulic cylinders (7), a lifting platform base (8) and two pairs of support columns (9), the two pairs of support columns (9) are arranged on the lower wall surface of the lifting platform base (8), the two pairs of multi-stage hydraulic cylinders (7) are arranged on the upper wall surface of the lifting platform base (8), the telescopic ends of the two pairs of multi-stage hydraulic cylinders (7) are connected to the lifting platform (6), and two pairs of first pin holes (5) are arranged on the outer side wall of the lifting platform (6); A sampling sub-tube (11) is inserted into the bottom of the sampling main tube (4), and a plurality of second ball-toothed hobs (15) are arranged in a spiral manner on the outer side wall of the sampling sub-tube (11).

2. A columnar sampling device according to claim 1, characterized in that: Two pairs of second pin holes (3) are provided on the outer side wall of the sampling tube handle (2).

3. A columnar sampling device according to claim 1, characterized in that: Two pairs of first slots (10) are provided on the lower wall surface of the sampling main tube (4).

4. A columnar sampling device according to claim 1, characterized in that: Two pairs of second slots (13) are provided on the lower wall surface of the sampling sample tube (11), and two pairs of plugs (12) are provided on the upper wall surface of the sampling sample tube (11).

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