CN218376443U - Soil layer sample collection system for multi-depth drilling - Google Patents
Soil layer sample collection system for multi-depth drilling Download PDFInfo
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- CN218376443U CN218376443U CN202222778227.1U CN202222778227U CN218376443U CN 218376443 U CN218376443 U CN 218376443U CN 202222778227 U CN202222778227 U CN 202222778227U CN 218376443 U CN218376443 U CN 218376443U
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Abstract
A soil layer sample collection system for multi-depth drilling comprises a drill rod tail part, a drill rod and an earth-taking drill bit which are sequentially connected, wherein one end of the earth-taking drill bit is provided with a connecting rod, one end of the earth-taking drill bit, which is far away from the connecting rod, is an open end, the inner wall of the earth-taking drill bit is provided with a spring piece, and when the earth-taking drill bit is not used, the spring piece extends from the pipe wall of an opening at the bottom of the earth-taking drill bit to the center of the opening at the bottom of the earth-taking drill bit and is in a petal shape; a sampling window is arranged on the side wall of the soil sampling drill bit adjacent to the connecting rod, and a sampling window cover plate covers the sampling window; a first connecting sleeve is arranged at one end of the drill rod connected with the soil sampling drill bit, and the first connecting sleeve is connected with a connecting rod through a positioning pin shaft arranged in a pin shaft hole; a second connecting sleeve is arranged at one end of the tail part of the drill rod, which is connected with the drill rod, and the second connecting sleeve is connected with the drill rod through a positioning pin shaft arranged in a pin shaft hole; and one end of the tail part of the drill rod, which is far away from the second connecting sleeve, is provided with a pull ring.
Description
Technical Field
The invention relates to the technical field of ecological management protection research and construction collection, in particular to a multi-depth drilling soil layer sample collection system suitable for a soft mucky soil layer with high water content.
Background
Soil is an important component of a limited resource and the ecological environment of the earth surface, and is important for the survival and development of human beings and the growth and the multiplication of various life forms on the earth. The soil layer sample collecting method for sampling and drilling is widely applied to the aspects of geological general survey, geochemical survey, small-scale engineering survey and the like. The method is a key step for obtaining the columnar layered soil sample close to a natural structure no matter the research on the movement of silt, the detection of the level of pollutants or the determination of the physicochemical property of soil. However, the existing soil sampling equipment commonly used for sampling and drilling has certain defects, particularly when soft mucky soil layer samples with high water content are adopted, the soil layer samples are easy to fall off from a drill bit in the sampling process and a drill hole is easy to collapse due to the fact that the soil is soft and lubricated by a large amount of water, the layering condition and sampling depth control of the adopted soil samples are interfered, and the follow-up research is seriously influenced.
Therefore, the problems of the prior art are to be further improved and developed.
Disclosure of Invention
The object of the invention is: in order to solve the problems in the prior art, the invention provides a multi-depth drilling soil layer sample collection system suitable for a soft mucky soil layer with high water content, and solves the problem that a soil layer sample which can be used for analysis is difficult to completely obtain from the soft mucky soil layer with high water content.
The technical scheme is as follows: in order to solve the technical problem, the technical scheme provides a multi-depth drilling soil layer sample collecting system which comprises a drill rod tail part, a drill rod and an earth-taking drill bit which are connected in sequence,
one end of the soil sampling drill bit is provided with a connecting rod, and the connecting rod is provided with a first pin shaft hole; the end, far away from the connecting rod, of the soil-taking drill bit is an open end, a spring piece is arranged on the inner wall of the soil-taking drill bit, the edge of the end, far away from the soil-taking drill bit, of the spring piece, connected with the soil-taking drill bit, is in a linear type, the end, far away from the soil-taking drill bit, is in a uniformly-cutting separation state, and when the soil-taking drill bit is not used, the spring piece extends from the pipe wall of the opening in the bottom of the soil-taking drill bit to the center of the opening in the bottom of the soil-taking drill bit to form a petal shape; a sampling window is arranged on the side wall of the soil sampling drill bit adjacent to the connecting rod, and a sampling window cover plate covers the sampling window;
a first connecting sleeve is arranged at one end of the drill rod connected with the soil sampling drill bit, and a second pin shaft hole corresponding to the first pin shaft hole is formed in the first connecting sleeve; a third pin shaft hole is formed in one end, far away from the first connecting sleeve, of the drill rod;
a second connecting sleeve is arranged at one end of the tail part of the drill rod, which is connected with the drill rod, and a fourth pin shaft hole corresponding to the third pin shaft hole is arranged on the second connecting sleeve; and a pull ring is arranged at one end of the tail part of the drill rod, which is far away from the second connecting sleeve.
The soil layer sample collection system with multiple deep drilled holes is characterized in that the spring pieces are steel spring pieces.
The soil layer sample collecting system with the multiple deep drilled holes is characterized in that the sampling window and the sampling window cover plate are respectively provided with a corresponding fixed screw hole; the sampling window cover plate is fixed behind the sampling window, and the soil sampling drill bit is cylindrical;
and one end of the sampling window cover plate, which is far away from the fixed screw, is provided with a limiting spring bolt.
The soil layer sample collection system for the multi-depth drilled hole is characterized in that the outer diameter of one end, far away from the first connecting rod sleeve, of the drill rod, the outer diameter of the connecting rod, the inner diameter of the first connecting rod sleeve and the outer diameter of the second connecting rod sleeve are equal.
The soil layer sample collecting system for the multi-depth drilled hole is characterized in that the drill rod is as long as the soil sampling drill bit.
The soil layer sample collection system for the multi-depth drilled hole is characterized in that the number of the drill rods is more than or equal to 1.
The soil layer sample collecting system with the multiple-depth drilled holes is characterized in that a positioning pin shaft penetrates through the first pin shaft hole, the second pin shaft hole, the third pin shaft hole and the fourth pin shaft hole.
The soil layer sample collecting system for the multi-depth drilling hole is characterized in that the soil sampling drill bit is made of stainless steel metal materials.
(III) the beneficial effects are that: the soil layer sample collecting system for the multi-depth drilling hole provided by the invention is characterized in that the soil sampling drill bit is provided with the petal-shaped spring piece, so that the soil layer sample is prevented from falling from the drill bit in the sampling process, the length and the diameter of the soil sampling drill bit are larger than those of a common soil sampling drill bit, a soil sample with the depth of 1m can be collected at one time, and the problems that multiple sampling drilling holes are easy to collapse, and the layering condition of the collected soil sample is interfered and the sampling depth control is interfered are solved. The sampling window and the sampling window cover plate on the side face of the soil sampling drill bit provide a gap for underground water in a drilled hole to flow out of the soil sampling drill bit, the pressure of the underground water on a soil layer sample is reduced, and the interference of the underground water on the layering condition of the soil layer sample is improved.
Drawings
FIG. 1 is a schematic structural view of a cross section of an earth-boring drill bit of a multi-depth borehole soil layer sample collection system according to the present invention;
FIG. 2 is a schematic top view of an earth-boring drill bit of a multi-depth borehole soil layer sample collection system of the present invention;
FIG. 3 is a schematic diagram of a side view of an earth-boring drill bit of a multi-depth borehole soil layer sample collection system of the present invention;
FIG. 4 is a schematic cross-sectional view of a drill pipe of a multi-depth borehole soil layer sample collection system of the present invention;
FIG. 5 is a schematic view of a cross-sectional structure of the end of a drill rod of a multi-depth borehole soil layer sample collection system of the present invention;
FIG. 6 is a schematic diagram of a side view of a positioning pin of the multi-depth borehole soil layer sample collection system of the present invention;
1-a connecting rod; 21-a first pin shaft hole; 22-a second pin shaft hole; 23-a third pintle hole; 24-a fourth pintle hole; 3-fixing screws; 4-a soil sampling drill bit; 5-sampling window cover plate; 6-limiting the bolt; 7-spring leaf; 8-fixing screw holes; 9-a drill rod; 101-first connecting rod sleeve; 102-a second connecting rod sleeve; 11-drill pipe tail; 12-positioning the pin shaft; 13-a pull ring.
Detailed Description
The invention will be described in further detail with reference to preferred embodiments thereof, and in the following description more details are set forth in order to provide a thorough understanding of the invention, but it will be apparent that the invention can be embodied in many other forms different from those described herein and that a person skilled in the art can make similar generalizations and deductions depending on the actual application without departing from the spirit of the invention, and therefore the scope of the invention should not be limited by the contents of this specific embodiment.
The drawings are schematic representations of embodiments of the invention, and it is noted that the drawings are intended only as examples and are not drawn to scale and should not be construed as limiting the true scope of the invention.
A multi-depth drilling soil layer sample collecting system comprises a drill rod tail 11, a drill rod 9 and an earth taking drill bit 4 which are connected in sequence.
The soil sampling drill bit 4 one end is provided with connecting rod 1, connecting rod 1 is provided with first round pin shaft hole 21. One end of the drill rod 9 connected with the soil sampling drill bit 4 is provided with a first connecting sleeve 101, the first connecting sleeve 101 is provided with a second pin shaft hole 22 corresponding to the first pin shaft hole 21, and the first connecting sleeve 101 is used for connecting the drill rod 9 with the soil sampling drill bit 4 or the drill rod 9. When the first connecting sleeve 101 of the drill rod 9 is placed on the connecting rod 1 of the soil sampling drill bit 4, the connecting rod 1 is arranged in the first connecting sleeve 101, the first pin shaft hole 21 corresponds to the second pin shaft hole 22, and the positioning pin shaft 12 sequentially passes through the second pin shaft hole 22, the first pin shaft hole 21 and the second pin shaft hole 22 to connect the drill rod 9 and the soil sampling drill bit 4 together.
A third pin shaft hole 23 is arranged at one end of the drill rod 9 far away from the first connecting sleeve 101. A second connecting sleeve 102 is arranged at one end of the drill rod tail 11 connected with the drill rod 9, a fourth pin shaft hole 24 corresponding to the third pin shaft hole 23 is arranged on the second connecting sleeve 102, and the second connecting sleeve 102 is used for connecting the drill rod tail 11 with the earth-taking drill bit 4 or the drill rod 9. When the second connecting sleeve 102 of the drill rod tail 11 is placed at one end of the drill rod 9 far away from the first connecting sleeve 101, one end of the drill rod 9 far away from the first connecting sleeve 101 is placed in the second connecting sleeve 102, the third pin hole 23 corresponds to the fourth pin hole 24, and the positioning pin 12 sequentially penetrates through the fourth pin hole 24, the third pin hole 23 and the fourth pin hole 24 to connect the drill rod tail 11 with the drill rod 9.
The outer diameter of the end of the drill rod 9 away from the first connecting rod sleeve 101, the outer diameter of the connecting rod 1, the inner diameter of the first connecting rod sleeve 101 and the outer diameter of the second connecting rod sleeve 102 are all equal.
When the soil sampling drill bit 4, the drill rod 9 and the drill rod tail 11 are fixedly connected, firstly, the connecting rod 1 on the soil sampling drill bit 4 is inserted into the connecting rod sleeve 10 on the drill rod 9, then the first pin hole 21 and the second pin hole 22 on the connecting rod 1 and the connecting rod sleeve 10 are aligned, and then the positioning pin shaft 12 is inserted into the aligned first pin hole 21 and the aligned second pin hole and then fixed by using a pin. The fixing method is also suitable for fixing the drill rod 9 and the drill rod 9, fixing the drill rod 9 and the drill rod tail 11 and fixing the earth taking drill bit 4 and the drill rod tail 11. During disassembly, the pin is firstly removed, then the positioning pin shaft 12 is pulled out, and finally the connecting rod 1 and the connecting rod sleeve 10 are separated.
And a pull ring 13 is arranged at one end of the drill rod tail part 11 far away from the second connecting sleeve 102, and the pull ring 13 is of a high-strength annular structure and is used as a stress point for lifting the soil-taking drill bit 4 out of the drilled hole. The pull ring 13 of the drill rod tail 11 provides a stress position for force application modes such as lever, binding and traction, the height of the soil layer sample collection system is conveniently increased, and the soil sampling drill bit 4 is pulled out for sampling and drilling. The pull ring 13 can lift the earth bit 4 out of the borehole using manual force, levers, pulley blocks, and the like. The top of the connecting rod 1 and the drill rod 9 arranged on the soil sampling drill bit 4 can be used as a stress point for driving the soil sampling drill bit 4 into a drilled hole, and the soil sampling drill bit 4 can be driven into the drilled hole in modes of manual knocking or gasoline pick hammering and the like.
The end, far away from the connecting rod 1, of the soil sampling drill bit 4 is an open end, the inner wall of the soil sampling drill bit is provided with a spring leaf 7, the edge of the end, connected with the soil sampling drill bit 4, of the spring leaf 7 is linear, and the end, far away from the soil sampling drill bit 4, of the spring leaf is in a uniformly-cut separation state. The spring leaf 7 of the bottom opening of the soil sampling drill bit 4 is welded at the bottom opening of the soil sampling drill bit 4, and when the soil sampling drill bit is not used, the spring leaf 7 extends from the pipe wall of the bottom opening of the soil sampling drill bit 4 to the center of the bottom opening of the soil sampling drill bit 4 to form a petal shape. When the soil sampling drill bit 4 is driven into a drilled hole for sampling, the sampled soil layer sample enters the soil sampling drill bit 4 from the bottom opening of the soil sampling drill bit 4, and the spring piece 7 is spread to be tightly attached to the side wall of the soil sampling drill bit 4. After the sampling is finished, the soil sampling drill bit 4 is lifted out of the drilling process, the soil samples are taken and fall down under the action of gravity, the spring piece 7 is extruded, the spring piece 7 extends towards the center of a circle of the opening at the bottom of the soil sampling drill bit 4 again, and the soil samples are prevented from falling. The spring piece 7 is a steel spring piece.
The petal-shaped steel spring pieces arranged at the head of the soil sampling drill bit 4 effectively prevent the high-water content soft mucky soil layer entering the soil sampling drill bit 4 from falling from the soil sampling drill bit 4 when the soil sampling drill bit 4 is pulled out for drilling.
The side wall of the soil sampling drill bit 4 adjacent to the connecting rod 1 is provided with a sampling window, and the sampling window is covered with a sampling window cover plate 5. The sampling window occupies 50% of the area of the side of the entire earth-boring bit 4. The sampling window with be equipped with mutual corresponding fixed screw hole 8 on the sampling window apron 5 respectively. The fixed screw passes respectively in proper order fixed screw hole on the sampling window apron 5 the last fixed screw hole of sampling window will sampling window apron 5 is fixed on the sampling window. The sampling window cover plate 5 is fixed behind the sampling window, and the soil sampling drill bit 4 is cylindrical. Sampling window apron 5 keeps away from the one end of fixed screw is equipped with spacing spring bolt 6, spacing spring bolt 6 is with fixed sampling window apron 5. The sampling window cover plate 5 is a residual material part after the stainless steel metal cylinder for manufacturing the soil sampling drill bit 4 cuts the sampling window.
Need clean the inside remaining soil of borrowing drill bit 4 before using, then use sampling window apron 5 to cover the sampling window on the borrowing drill bit 4, then use 3 pieces of set screw 3 to fix sampling window apron 5 on borrowing drill bit 4, the large tracts of land sampling window of borrowing drill bit 4 side establishes for non-closely cooperating between above-mentioned sampling window apron 5 with the cover, groundwater in the drilling provides the space that flows out borrowing drill bit 4, when borrowing drill bit 4 squeezes into the drilling sample, groundwater of being crowded into in the borrowing drill bit 4 can flow out borrowing drill bit 4, reduce the pressure to taking the soil layer sample, improve the interference of groundwater to taking the soil layer sample layering condition. The sampling is accomplished and is promoted out drilling with borrowing drill bit 4 after and place sampling window apron 5 to the upper level, dismantles set screw 3, and separation sampling window apron 5 carries out subsequent processing through sampling window contact soil layer sample.
The large-area sampling window on the side face of the soil sampling drill bit 4 provides possibility for obtaining complete layering of soil layer samples in the soil sampling drill bit, the soil layer samples in the soil sampling drill bit 4 do not need to be segmented before being taken out, and the sampling activity of partial research purposes is influenced decisively.
The drill rod 9 is the same as the soil sampling drill bit 4 in length, the inner wall of the soil sampling drill bit 4 is 1m high, the wall thickness of one end, provided with the connecting rod 1, of the soil sampling drill bit 4 is 2cm, the diameter of the inner wall of the soil sampling drill bit 4 is 10cm, the length of the connecting rod is 8cm, and the total length of the soil sampling drill bit 4 is 1.1m. The number of the drill rods 9 is more than or equal to 1, the soil layer sample collection depth is controlled by changing the assembling number of the drill rods 9, a plurality of drill rods 9 can be prepared according to different sampling depths, and the sampling depths are increased by sequentially connecting the drill rods 9. The earth-taking drill 4 may be made of stainless steel or other materials with high hardness. The lengths of the drill rods 9 and the soil sampling drill bits 4 are constant values, and the soil layer sample collection depth is controlled by changing the assembling number of the drill rods 9. The design of the large length-diameter ratio of the soil taking drill bit 4 can effectively reduce the collection times of soil layer samples, reduce the risk of collapse of the drill hole, and reduce the influence of the falling soil of the side wall of the drill hole on the sampling depth error generated by the obtained soil layer samples.
The mode that uses locating pin shaft 12 to connect between drilling rod afterbody 11, drilling rod 9 and the drill bit 4 that fetches earth is connected, when using during soil layer sample collection system, use its equipment as required, when using the end, can dismantle it in order to reduce the storage space, conveniently carries.
The following describes the steps of use of the soil layer sample collection system:
(1) The inside remaining soil of drill bit 4 that fetches earth is cleaned, uses sampling window apron 5 to cover the sampling window on the drill bit 4 that fetches earth, uses 3 pieces of set screw 3 to fix sampling window apron 5 on drill bit 4 that fetches earth.
(2) And when the sampling depth is less than or equal to the length of the soil sampling drill bit 4, vertically placing the soil sampling drill bit 4 on the selected sampling drilling position, driving the soil sampling drill bit 4 into the drill hole by using modes of manual knocking or gasoline pick hammering and the like, and stopping after the selected depth is reached. The tail 11 of the drill rod is connected with the soil sampling drill bit 4, and the soil sampling drill bit 4 is lifted out of the drilled hole in a mode of manpower, lever, pulley block and the like. The sampling window cover plate 5 is horizontally placed upwards after the soil sampling drill bit 4 is lifted out of a drilled hole, the fixing screw 3 is disassembled, the sampling window cover plate 5 is separated, and the sampling window can be contacted with a soil layer sample to perform subsequent treatment.
(3) When the sampling depth is larger than the length of the soil sampling drill bit 4, the whole process of the step (2) is firstly executed. The drill rod tail 11 is then detached. And (3) executing the step (1) and the step (2) again until the soil sampling drill bit 4 is driven into the drilled hole to the selected depth and then stops, wherein the soil sampling drill bit 4 does not contain soil samples, but is fixed in the drilled hole. And connecting the drill rod 9 with the soil sampling drill bit 4, driving the soil sampling drill bit 4 into a drilled hole in a manual knocking mode or a gasoline pick hammering mode, and stopping after the selected depth is reached. The tail 11 of the drill rod is connected with the drill rod 9, and the soil sampling drill bit 4 is lifted out of the drilled hole in the modes of manpower, levers, pulley blocks and the like. The sampling window apron 5 is placed to the upper level after soil sampling drill bit 4 promotes out the drilling, dismantles set screw 3, and separation sampling window apron 5, accessible sampling window contact soil layer sample carry out subsequent processing. If the soil layer sample with the planned depth is not obtained yet, the number of the connected drill rods 9 is increased, and the steps are repeated until the soil layer sample with the planned depth is obtained.
(4) The maximum sampling depth is determined according to the manufacturing materials of the soil sampling drill bit 4, the drill rod 9 and the drill rod tail 11, the soil quality of a sampling area and the field condition.
(5) And (3) repeating the step (1) after sampling is finished, cleaning and storing parts used in the sampling process such as the soil sampling drill bit 4, the drill rod 9, the drill rod tail 11 and the like, and finishing the whole sampling process.
A multi-depth drilling soil layer sample collection system is provided with petal-shaped spring pieces on a soil sampling drill bit, so that when a soft mucky soil layer sample with high water content is adopted, the soil layer sample falls off from the drill bit in the sampling process, and the problems that the drilling is easy to collapse, the layering condition of the adopted soil sample is interfered and the sampling depth control is interfered are solved; the large-area sampling window on the side surface of the soil sampling drill bit is tightly matched with the covered sampling window cover plate, so that a gap for the groundwater in the drilling to flow out of the soil sampling drill bit is provided, when the soil sampling drill bit is driven into the drilling hole for sampling, the groundwater squeezed into the soil sampling drill bit can flow out of the soil sampling drill bit, the pressure for sampling soil layer samples is reduced, and the interference of groundwater on the layering condition for sampling the soil layer samples is improved.
The above description is provided for the purpose of illustrating the preferred embodiments of the present invention and will assist those skilled in the art in more fully understanding the technical solutions of the present invention. However, these examples are merely illustrative, and the embodiments of the present invention are not to be considered as being limited to the description of these examples. For those skilled in the art to which the invention pertains, several simple deductions and changes can be made without departing from the inventive concept, and all should be considered as falling within the protection scope of the invention.
Claims (8)
1. A multi-depth drilling soil layer sample collection system comprises a drill rod tail part, a drill rod and a soil sampling drill bit which are connected in sequence, and is characterized in that,
one end of the soil sampling drill bit is provided with a connecting rod, and the connecting rod is provided with a first pin shaft hole; the end, far away from the connecting rod, of the soil-taking drill bit is an open end, a spring piece is arranged on the inner wall of the soil-taking drill bit, the edge of the end, far away from the soil-taking drill bit, of the spring piece, connected with the soil-taking drill bit, is in a linear type, the end, far away from the soil-taking drill bit, is in a uniformly-cutting separation state, and when the soil-taking drill bit is not used, the spring piece extends from the pipe wall of the opening in the bottom of the soil-taking drill bit to the center of the opening in the bottom of the soil-taking drill bit to form a petal shape; a sampling window is arranged on the side wall of the soil sampling drill bit adjacent to the connecting rod, and a sampling window cover plate covers the sampling window;
a first connecting rod sleeve is arranged at one end of the drill rod, which is connected with the soil sampling drill bit, and a second pin shaft hole corresponding to the first pin shaft hole is formed in the first connecting rod sleeve; a third pin shaft hole is formed in one end, far away from the first connecting rod sleeve, of the drill rod;
a second connecting rod sleeve is arranged at one end of the tail part of the drill rod, which is connected with the drill rod, and a fourth pin shaft hole corresponding to the third pin shaft hole is arranged on the second connecting rod sleeve; and one end of the tail part of the drill rod, which is far away from the second connecting rod sleeve, is provided with a pull ring.
2. The system of claim 1 wherein the spring plate is a steel spring plate.
3. The system for collecting soil layer samples through multiple deep drilling according to claim 1, wherein the sampling window and the sampling window cover plate are respectively provided with fixing screw holes corresponding to each other; the sampling window cover plate is fixed behind the sampling window, and the soil sampling drill bit is cylindrical;
and one end of the sampling window cover plate, which is far away from the fixed screw, is provided with a limiting spring bolt.
4. The system of claim 1, wherein the drill rod has an outer diameter at an end thereof remote from the first connector rod sleeve, an outer diameter of the connector rod, an inner diameter of the first connector rod sleeve, and an outer diameter of the second connector rod sleeve, all being equal.
5. The system of claim 1 wherein the drill rod is the same length as the earth-boring drill bit.
6. The system of claim 5 wherein the number of drill rods is a number greater than or equal to 1.
7. The system for collecting soil layer samples through multi-depth drilling according to claim 1, wherein a positioning pin shaft penetrates through the first pin shaft hole, the second pin shaft hole, the third pin shaft hole and the fourth pin shaft hole.
8. The system of claim 1, wherein the earth-boring drill bit is made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222778227.1U CN218376443U (en) | 2022-10-21 | 2022-10-21 | Soil layer sample collection system for multi-depth drilling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222778227.1U CN218376443U (en) | 2022-10-21 | 2022-10-21 | Soil layer sample collection system for multi-depth drilling |
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| CN218376443U true CN218376443U (en) | 2023-01-24 |
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| CN202222778227.1U Active CN218376443U (en) | 2022-10-21 | 2022-10-21 | Soil layer sample collection system for multi-depth drilling |
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