CN218725451U - Sampling device for geological exploration - Google Patents
Sampling device for geological exploration Download PDFInfo
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- CN218725451U CN218725451U CN202222577444.4U CN202222577444U CN218725451U CN 218725451 U CN218725451 U CN 218725451U CN 202222577444 U CN202222577444 U CN 202222577444U CN 218725451 U CN218725451 U CN 218725451U
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- sampling
- drill string
- helical blade
- sample
- drilling
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- 238000005070 sampling Methods 0.000 title claims abstract description 92
- 238000005553 drilling Methods 0.000 claims abstract description 39
- 239000002689 soil Substances 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 5
- 239000011148 porous material Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model discloses a sampling device for prospecting belongs to stratum sampling equipment technical field, including drilling mechanism and actuating mechanism, drilling mechanism is arranged in drilling in soil, and it includes that first drilling string and coaxial sleeve locate the first helical blade of first drilling string outer wall, sample portion be located first drilling string below and with the coaxial fixed connection of drilling mechanism, sample portion include sampler barrel and second helical blade, wherein, second helical blade is fixed in the sampler barrel and along its axial extension, the external diameter of sampler barrel is less than first helical blade's external diameter, exists the intercommunication passageway between first helical blade and the second helical blade. This sampling device has assembleed drilling, sample function, can directly bore a drill to the target location and take a sample, and easy operation saves time, and simultaneously, the sample portion is provided with the sampling tube, thereby the sample of acquireing is arranged in the sampling tube and keeps apart with the pore wall, lifts the drill string in-process and can not pollute the sample, has ensured the authenticity of sample.
Description
Technical Field
The utility model relates to a sampling equipment technical field, concretely relates to sampling device for geological exploration.
Background
The geological exploration process often needs to carry out sampling analysis on underground soil, the existing conventional sampling mode is to utilize a spiral sampler to drill into a stratum for sampling, the spiral sampler comprises a drill column, the outer wall of the drill column is provided with a spiral blade, the drill column is continuously rotated to enable the drill column to continuously move downwards and form a drilled hole, the drilled soil fills a gap between the drill column and a hole wall and spirally moves to the ground along the spiral blade, the drill column is taken out after the bottom of the drill column reaches a target position, a sample at the bottom of the drill column is a sample at the target position, however, the sample at the bottom of the drill column can be continuously contacted with the hole wall or even collided when the sample is taken out, the sample at the bottom of the drill column is polluted by the soil at the upper part of the target position, and the authenticity of the sample is influenced. In this regard, it is proposed to drill a large hole with a drilling apparatus and then to sample the hole with a smaller apparatus, such as the deep sampling apparatus for coal geological exploration disclosed in CN202220653395.5, but such an apparatus requires a drilling apparatus and a sampling apparatus with different sizes.
SUMMERY OF THE UTILITY MODEL
In view of above technical problem, an object of the utility model is to provide a sampling device for geological exploration, this sampling device has assembled drilling, sample function, can directly bore a drill to the target position and take a sample, and easy operation saves time, and simultaneously, the sample and the pore wall of acquireing are kept apart, lift the drilling string in-process and can not pollute the sample, have ensured the authenticity of sample.
The utility model adopts the following technical proposal:
a sampling device for geological exploration comprises a drilling mechanism and a driving mechanism, wherein the drilling mechanism is used for drilling in soil, the drilling mechanism is a spiral sampler and comprises a first drill string and a first spiral blade, the first spiral blade is coaxially sleeved on the outer wall of the first drill string, the driving mechanism is used for driving the first drill string to rotate, the sampling device further comprises a sampling part which is positioned below the first drill string and coaxially and fixedly connected with the drilling mechanism and used for obtaining a soil sample, the sampling part comprises a sampling barrel and a second spiral blade, the second spiral blade is fixed in the sampling barrel and axially extends along the sampling barrel, the outer diameter of the sampling barrel is smaller than that of the first spiral blade, a communication channel is arranged between the first spiral blade and the second spiral blade, when the second spiral blade rotates along with the drill string, a sample in a stratum is excavated, and after the sampling barrel is filled with the sample, the new sample leaves the sampling barrel and enters the first spiral blade.
As a specific implementation of the utility model, the second helical blade is back to the one end of first drilling string extends the exit of sampler barrel or stretches out the sampler barrel, can constantly tunnel when the sampler barrel is rotatory like this, reduces the resistance in the tunnelling of whole sampling device.
As a specific implementation manner of the utility model, the sample portion is located including coaxial cover second drilling string in the sampling tube, the second drilling string with certain distance is separated between the sampling tube, exists the toroidal cavity promptly between the two, the coaxial fixed connection of second drilling string and first drilling string.
As a specific embodiment of the present invention, the sampling tube is connected to the first drill string via a support rod.
Further, the outer diameter of the sampling cylinder is smaller than or equal to the outer diameter of the first drill string.
As a specific embodiment of the present invention, the driving mechanism may be a swing handle or a motor.
The utility model has the advantages that:
the utility model discloses a sampling device for geological exploration includes probing portion and sample portion, and the sample of sample portion can be sent into probing portion, and this sampling device has assembled drilling, sample function, can directly drill into target location and sample, and easy operation saves time, and simultaneously, sample portion is provided with the sampler barrel, thereby the sample of acquireing is arranged in the sampler barrel and keeps apart with the pore wall, lifts the drill string in-process and can not pollute the sample, has ensured the authenticity of sample.
Drawings
FIG. 1 is a schematic view showing the overall structure of a sampling device for geological exploration in example 1;
FIG. 2 is a partial mechanism diagram of a sampling section of the drilling mechanism in embodiment 1;
FIG. 3 is a schematic view showing the overall structure of a sampling device for geological exploration in accordance with example 2;
FIG. 4 is a partial mechanism diagram of a sampling section of the drilling mechanism in embodiment 2;
in the figure, a drilling mechanism 1, a sampling part 2, a support frame 3, a motor 4,
A first drill string 11, a first helical blade 12,
Comprises a sampling cylinder 21, a second helical blade 22, a second drill string 23 and a support rod 24.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
Example 1
Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of an overall structure of a sampling device for geological exploration according to the present embodiment, and fig. 2 is a partial schematic diagram of a sampling portion of a drilling mechanism according to the present embodiment. The sampling device for geological exploration of this embodiment is including creeping into mechanism 1, sample portion 2 and support frame 3 and motor 4, wherein, sample portion 2 is located creeps into mechanism 1 below and with creeps into the coaxial fixed connection of mechanism 1, sample portion 2 is arranged in drilling and sample in soil, it creeps into also for sample portion 2 provides thrust assistance simultaneously to creep into mechanism 1, motor 4 is used for driving and creeps into mechanism 1 rotatoryly, support frame 3 is used for supporting other parts, it is connected with support frame 3 rotation to creep into mechanism 1.
The drilling mechanism 1 is a spiral sampler, and comprises a first drill string 11 and a first helical blade 12, wherein the first helical blade 12 is coaxially sleeved on the outer wall of the first drill string 11, and a rotating shaft of the motor 4 is coaxially connected with the first drill string 11 and used for driving the first drill string 11 to rotate.
The sampling part 2 comprises a sampling barrel 21, a second helical blade 22 and a second drill string 23, wherein the second drill string 23 is coaxially sleeved on the sampling barrel 1, the second drill string 23 and the sampling barrel 11 are spaced apart by a certain distance, that is, an annular cavity is formed between the second drill string 23 and the sampling barrel 11, the second helical blade 21 is fixed in the annular cavity and extends along the axial direction of the sampling barrel 21, one end of the second drill string 23, which faces the first drill string 11, is coaxially and fixedly connected with the first drill string 11, and the sampling barrel 21 and the first drill string 11 are spaced apart by a certain distance after connection, so that a passage is formed between the first helical blade 12 and the second helical blade 22 for soil in the sampling barrel 21 to move towards the second helical blade 21.
Furthermore, in order to reduce the resistance to the boring of the sampling tube, the end of the second helical blade 22 facing away from the first drill string 11 extends to the outlet of the sampling tube 21 or beyond the sampling tube 22, so that it can be brought into contact with the soil as early as possible for the soil to be drilled. The outer diameter of the sampling tube 21 is smaller than that of the first helical blade 12, so that the drilling mechanism 1 has a hole expanding effect, and meanwhile, soil in the hole expanding process of the drilling mechanism 1 has an axial downward reaction on the drilling mechanism 1, and the force can assist the bottom of the sampling part 2 to compress the soil, so that the drilling speed is improved. Furthermore, the outer diameter of sampling cylinder 22 is equal to the outer diameter of first drill string 11.
Example 2
Referring to fig. 3 and 4, fig. 3 is a schematic view of the overall structure of a sampling device for geological exploration according to the present embodiment, and fig. 4 is a partial schematic view of a sampling portion of a drilling mechanism according to the present embodiment. As in embodiment 1, the sampling device for geological exploration of the present embodiment includes a drilling mechanism 1, a sampling portion 2, a support frame 3, and a motor 4, wherein the drilling mechanism 1, the support frame 3, and the motor 4 are configured the same as in embodiment 1, except that the sampling portion 2 is different.
The sampling part 2 of the present embodiment comprises a sampling cylinder 21 and a second helical blade 22, wherein the second helical blade 22 is located in the sampling cylinder 21 and extends along the axial direction 21 of the sampling cylinder, the sampling cylinder 21 is fixedly connected with the first drill string 11 through a plurality of support rods 24, and after the connection, the sampling cylinder 21 and the first drill string 11 are spaced apart by a certain distance so as to form a passage between the first helical blade 12 and the second helical blade 22, so that soil in the sampling cylinder 21 moves towards the second helical blade 21.
In addition, as in embodiment 1, the end of the second helical blade 22 facing away from the first drill string 11 extends to the outlet of the sampling barrel 21 or out of the sampling barrel 22, the outer diameter of the sampling barrel 21 is smaller than the outer diameter of the first helical blade 12, and the outer diameter of the sampling barrel 22 is equal to the outer diameter of the first drill string 11.
In the description of the present invention, it should be noted that the terms "upper", "lower", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.
Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the claims.
Claims (6)
1. The sampling device for geological exploration comprises a drilling mechanism and a driving mechanism, wherein the drilling mechanism comprises a first drill string and a first spiral blade coaxially sleeved on the outer wall of the first drill string, the driving mechanism is used for driving the first drill string to rotate, the sampling device is characterized by further comprising a sampling part which is positioned below the first drill string and is fixedly connected with the drilling mechanism in a coaxial mode, and the sampling part comprises a sampling part body
A sampling barrel arranged coaxially with the first drill string;
a second helical blade fixed in the sampling tube and extending axially along the sampling tube;
the outer diameter of the sampling cylinder is smaller than that of the first helical blade, and a communication channel exists between the first helical blade and the second helical blade.
2. A sampling device as claimed in claim 1, wherein the end of the second helical blade facing away from the first drill string extends beyond the outlet of the sampling tube.
3. The sampling device of claim 1, wherein the sampling portion comprises a second drill string coaxially disposed within the sampling barrel, the second drill string being spaced apart from the sampling barrel, the second drill string being coaxially fixedly coupled to the first drill string.
4. The sampling device of claim 1, wherein the sampling cartridge is fixedly connected to the first drill string via a support rod.
5. A sampling device as claimed in claim 3 or 4, wherein the sampling barrel has an outer diameter equal to or less than the outer diameter of the first drill string.
6. The sampling device of claim 1, wherein the drive mechanism is a motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222577444.4U CN218725451U (en) | 2022-09-28 | 2022-09-28 | Sampling device for geological exploration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222577444.4U CN218725451U (en) | 2022-09-28 | 2022-09-28 | Sampling device for geological exploration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218725451U true CN218725451U (en) | 2023-03-24 |
Family
ID=85637949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222577444.4U Expired - Fee Related CN218725451U (en) | 2022-09-28 | 2022-09-28 | Sampling device for geological exploration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218725451U (en) |
-
2022
- 2022-09-28 CN CN202222577444.4U patent/CN218725451U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20230324 |
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| CF01 | Termination of patent right due to non-payment of annual fee |