Mine ecological geology sampling drilling device
By using sampling bags and segmentation mechanisms in the mine ecological geological sampling drilling device, the problem of cross-contamination caused by contact between soil column samples and the inner wall of the sampling tube was solved, thereby improving sample quality and sampling flexibility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIANGSU ZHONGCHENG CONSTR ENG CORP
- Filing Date
- 2026-04-20
- Publication Date
- 2026-06-30
AI Technical Summary
In existing mine ecological geological sampling drilling equipment, the soil column sample comes into direct contact with the inner wall of the sampling tube during the sampling process, resulting in cross-contamination and a decline in sample quality.
Soil column samples were wrapped in sampling bags and segmented using ropes and heat-sealing components to reduce cross-contamination between soil samples at different depths.
It improved sample quality, reduced contamination of new soil column samples by pollutants, reduced the release of volatile organic compounds and water loss from samples, and improved sampling flexibility and integrity.
Smart Images
Figure CN122306470A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of geological sampling technology, specifically relating to a mining ecological geological sampling drilling device. Background Technology
[0002] Mine ecological geological sampling drilling equipment uses mechanical means to create boreholes or channels underground to obtain samples of underground materials. Soil sampling is often necessary to understand the extent of ecological geological pollution in mines.
[0003] In the use of existing mine ecological geological sampling drilling equipment, a cylindrical soil column sample is generally taken through a sampling tube. The sample is relatively long and covers a wide depth range, which can easily lead to cross-contamination between soil samples at different depths, affecting the sample quality. The soil column sample is generally in direct contact with the inner wall of the sampling tube, and the pollutants left on the inner wall of the sampling tube can easily contaminate the new soil column sample during the next sampling, thus affecting the sample quality. Summary of the Invention
[0004] The purpose of this invention is to provide a mining ecological geological sampling drilling device that can wrap the sampled soil column with a sampling bag, reducing the possibility of contaminants remaining on the inner or outer cylinder wall causing contamination of the new soil column sample during the next sampling. The segmentation mechanism can segment the sampling bag and soil column sample with ropes and heat sealing components, reducing cross-contamination between soil samples at different depths, thereby improving sample quality.
[0005] The specific technical solution adopted by this invention is as follows: A mining ecological geological sampling drilling device includes: Support frame; A sampling tube is mounted on a support frame. The sampling tube includes an outer cylinder that is slidably mounted on the support frame, an inner cylinder that is rotatably mounted on the inner side of the outer cylinder, a sampling head that is detachably connected to the outer cylinder, and a sampling bag that is detachably connected to the sampling head on the inner side of the inner cylinder. The segmented mechanism is installed on the sampling tube. The segmented mechanism includes a rope installed on the outside of the sampling bag. One end of the rope is fixedly connected to the outer cylinder, and the other end of the rope is slidably installed with the inner cylinder. A heat-sealing assembly is installed on the outside of the sampling bag and is fixedly connected to the inner cylinder. The rope slides along the inner cylinder and then squeezes the sampling bag inward, causing the sampling bag to converge at the heat-sealing assembly.
[0006] As a preferred embodiment of the mining ecological geological sampling drilling device of the present invention, wherein: a sleeve is provided on the inner side of the sampling head, the lower end of the sleeve is fixedly connected to the sampling head, the sampling bag is sleeved and connected to the sleeve, and a pressure plate is provided on the outer side of the lower end of the sampling bag, the pressure plate being detachably connected to the sampling head.
[0007] In a preferred embodiment of the mining ecological geological sampling drilling device of the present invention, a baffle is fixedly connected to the inner side of the outer cylinder, the baffle is located below the rope, and a plurality of baffle plates are fixedly connected to the baffle.
[0008] In a preferred embodiment of the mining ecological geological sampling drilling device of the present invention, a plurality of sliding sleeves are fixedly connected to the inner cylinder, the rope is slidably connected to the sliding sleeves, a winch assembly is fixedly connected to the inner cylinder, and the rope is wound together with the output end of the winch assembly.
[0009] In a preferred embodiment of the mine ecological geological sampling drilling device of the present invention, the outer cylinder is rotatably connected to the inner cylinder, a drive motor is fixedly connected to the outer cylinder, and the output end of the drive motor is fixedly connected to the inner cylinder.
[0010] As a preferred embodiment of the mining ecological geological sampling drilling device of the present invention, the inner cylinder is fixedly connected with several sliding plates, and the outer cylinder is provided with several sliding grooves, wherein the sliding plates and the sliding grooves are rotatably engaged.
[0011] As a preferred embodiment of the mine ecological geological sampling drilling device of the present invention, the slide plate has a notch for the rope to pass through the slide plate.
[0012] As a preferred embodiment of the mine ecological geological sampling drilling device of the present invention, the sampling head is provided with an external thread at one end near the outer cylinder, and the outer cylinder is provided with an internal thread at one end near the sampling head, wherein the external thread and the internal thread are threadedly engaged.
[0013] As a preferred embodiment of the mine ecological geological sampling drilling device of the present invention, a telescopic component is fixedly connected to the support frame, and the output end of the telescopic component is fixedly connected to the outer cylinder.
[0014] As a preferred embodiment of the mine ecological geological sampling drilling device of the present invention, a lifting frame is fixedly connected to the outer cylinder, and the lifting frame is slidably connected to the support frame.
[0015] The technical effects achieved by this invention are as follows: This invention employs a sampling bag design that encloses the soil column sample. After the soil column sample enters the sampling tube, it moves to the inside of the sampling bag. Because the sampling bag separates the soil column sample from the inner cylinder, it reduces the possibility of contamination caused by the soil column sample coming into contact with the inner or outer cylinder wall during sampling. Compared with the prior art where the soil column sample is in direct contact with the inner wall of the sampling tube, this invention reduces the possibility of contaminants remaining on the inner or outer cylinder wall contaminating the new soil column sample during the next sampling by disassembling and replacing the sampling bag after removing the sampling head, thereby improving sample quality. This invention employs a segmented mechanism that uses ropes and a heat-sealing assembly to segment the sampling bag and soil column sample. After the ropes are tightened radially, the soil column sample is cut off, and the sampling bag at the cut-off point is gathered to form a "waist" section. After the heat-sealing assembly is activated, it heats and seals the "waist" section of the sampling bag, thereby enabling the soil column sample to be segmented during sampling. Compared with the existing technology that uses a single, long soil column sample, this reduces the possibility of cross-contamination between soil samples at different depths, thus improving sample quality. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the outer cylinder and the sampling head in this invention; Figure 3 This is a cross-sectional schematic diagram of the outer cylinder and sampling head in this invention; Figure 4 In this invention Figure 3 Enlarged view of point A in the middle; Figure 5 In this invention Figure 3 Enlarged view of point B in the middle; Figure 6 This is a cross-sectional schematic diagram of the outer cylinder and the inner cylinder in this invention; Figure 7 In this invention Figure 6 Enlarged view of point C in the middle; Figure 8 In this invention Figure 6 Enlarged view of point D in the middle; Figure 9 This is a cross-sectional schematic diagram of the sampling bag and sleeve in this invention; Figure 10 This is a cross-sectional schematic diagram of the sampling bag and outer cylinder in this invention.
[0017] The attached diagram lists the components represented by each number as follows: 10. Support frame; 20. Sampling tube; 21. Outer cylinder; 22. Inner cylinder; 23. Sampling head; 24. Sampling bag; 30. Segmentation mechanism; 31. Rope; 32. Heat sealing assembly; 41. Sleeve; 42. Pressure plate; 43. Baffle; 44. Baffle plate; 45. Sliding sleeve; 46. Winch assembly; 51. Drive motor; 52. Slide plate; 53. Slide groove; 54. Notch; 61. External thread; 62. Internal thread; 63. Telescopic assembly; 64. Lifting frame. Detailed Implementation
[0018] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.
[0019] Example 1 like Figures 1 to 10 As shown, this is the first embodiment of the present invention. This first embodiment provides a mining ecological geological sampling drilling device, including a support frame 10; a sampling tube 20, which is mounted on the support frame 10 and includes an outer cylinder 21 slidably mounted on the support frame 10, an inner cylinder 22 rotatably mounted on the inner side of the outer cylinder 21, a sampling head 23 disposed below the inner cylinder 22, the sampling head 23 being detachably connected to the outer cylinder 21, a sampling bag 24 disposed on the inner side of the inner cylinder 22, the lower end of the sampling bag 24 being detachably connected to the sampling head 23; and a segmentation mechanism 30, which is mounted on the sampling tube 20 and includes a rope 31 disposed on the outside of the sampling bag 24, one end of the rope 31 being fixedly connected to the outer cylinder 21, the other end of the rope 31 being slidably mounted to the inner cylinder 22, and a heat sealing assembly 32 disposed on the outside of the sampling bag 24, the heat sealing assembly 32 being fixedly connected to the inner cylinder 22.
[0020] It should be noted that the support frame 10 is preferably "gate" shaped in this invention. The support frame 10 consists of a top crossbeam and two side columns. The lower ends of the columns are fixedly connected to legs, which are used to contact the ground for support. The sampling tube 20 is slidably installed with the support frame 10 in the vertical direction. The outer cylinder 21 and the inner cylinder 22 are coaxially arranged, and the rotation center line of the inner cylinder 22 is collinear with the axis of the outer cylinder 21. The sampling head 23 is preferably a tube shoe in this invention. The tube shoe is a prior art technology used to cut the soil to obtain a soil column, which enters the sampling tube 20. It will not be described in detail here. The sampling bag 24 is a flexible cylindrical bag. The upper end is closed and the lower end is open. In this invention, it is preferably made of LLDPE film. There is a gap between the lower end of the inner cylinder 22 and the upper end of the sampling head 23. This gap is used for the rope 31 to gather the sampling bag 24. The rope 31 is made of heat-resistant material. The height position of the fixed connection between the rope 31 and the outer cylinder 21 is the same as the height position of the gap. The end of the rope 31 away from the outer cylinder 21 is slidably installed with the inner cylinder 22 in the vertical direction. In this invention, the rope 31 is preferably an aramid fiber rope for gathering the plastic bag. In this invention, the heat sealing assembly 32 is preferably a heat press head with embedded resistance wire for providing heat source and rigidity. The pressure-bearing surface is used to heat-seal the gathered plastic bag. The surface of the heat-sealing assembly 32 is coated with Teflon to reduce the adhesion of molten LLDPE plastic to the heat-sealing assembly 32. A control panel (not shown in the figure) is fixedly connected to the support frame 10. The heat-sealing assembly 32 is connected to the control panel via wires (not shown in the figure). The control panel is prior art and is used to control the power supply and power off of the heat-sealing assembly 32, and to adjust the heating power and temperature according to a preset program. As those skilled in the art know, to achieve this control, the present invention also includes a power supply module (not shown in the figure) and corresponding electrical connections (not shown in the figure). Since this is a well-known technical method, it will not be described in detail here. In the initial state, the upper end of the sampling bag 24 passes through the gap from the bottom of the inner cylinder 22 and extends into the inner side of the inner cylinder 22. The lower end of the sampling bag 24 is detachably connected to the sampling head 23. The rest of the sampling bag 24 shrinks axially onto the sampling head 23. When shrinking, the overall length of the sampling bag 24 decreases and wrinkles are formed on the surface. The rope 31 wraps around the outside of the sampling bag 24, and the height of the rope 31 is the same as the height of the gap. At this time, the starting point and the ending point of the rope 31 are located on both sides of the heat sealing assembly 32.
[0021] In use, the outer cylinder 21 slides downwards along the support frame 10, causing the outer cylinder 21 to drive the inner cylinder 22 and sampling head 23 into the soil. The sampling head 23 cuts the soil to form a soil column sample. The soil column passes through the sampling head 23 and enters the sampling bag 24. Since the upper end of the sampling bag 24 is sealed, as the sampling tube 20 moves downwards, the soil column pushes the upper end of the sampling bag 24 upwards relative to the sampling tube 20, causing the upper end of the sampling bag 24 to move upwards inside the inner cylinder 22. During this process, the overall length of the sampling bag 24 increases, and the folds formed on the surface unfold, so that the sampling bag 24 covers the continuously growing soil column. When segmentation is required, the end of the rope 31 away from the outer cylinder 21 moves upwards. One end of the outer cylinder 21 is fixedly connected to the inner cylinder 21, causing the rope 31 to tighten radially inward along the outer part of the sampling bag 24. The rope 31 compresses the sampling bag 24 and the soil column sample located inside the sampling bag 24 at this gap, causing the sampling bag 24 to radially contract at this gap, forming a "waist" section. Since the starting and ending points of the rope 31's loop are located on both sides of the heat-sealing component 32, the rope 31 tightens and moves closer to the heat-sealing component 32. The "waist" section of the sampling bag 24 tightens to be close to the heat-sealing component 32. At this time, the rope 31 and the heat-sealing component 32 clamp the "waist" section of the sampling bag 24. After the heat-sealing component 32 operates, it heats the "waist" section of the sampling bag 24. The "waist" section of the sampling bag 24 is sealed by heat, separating the upper and lower parts of the "waist" section. As the rope 31 tightens radially inward, it also radially compresses the soil column sample inside the sampling bag 24, causing the soil column to be cut into upper and lower parts at this gap. The upper part remains as the sample above the "waist" section inside the sampling bag 24. If further downward sampling is not desired, the outer cylinder 21 slides upward along the support frame 10, causing the outer cylinder 21 to pull the inner cylinder 22 and sampling head 23 out of the soil, thus removing the soil column sample from the ground. Since the soil column has been cut, it is easier for the outer cylinder 21 to remove it from the ground. The rope 31 and heat-sealing assembly 32 still hold the "waist" section of the sampling bag 24. The inner cylinder 22 supports the sampling bag 24 and the truncated soil column sample. Friction exists between the inner wall of the inner cylinder 22 and the outer surface of the sampling bag 24, reducing the likelihood of the soil column sample falling from the sampling head 23 under its own weight during the extraction of the outer cylinder 21. When the soil column sample needs to be removed after the outer cylinder 21 is extracted, the inner cylinder 22 rotates along the outer cylinder 21, while the rope 31 slides along the inner cylinder 22. The rotation of the inner cylinder 22 causes the rope 31 to wrap around the sampling bag 24 once, ensuring that the fixed connection between the rope 31 and the outer cylinder 21, as well as the sliding connection between the rope 31 and the inner cylinder 22, are on the same side of the heat-sealing assembly 32. At this point, the rope 31 no longer wraps around the sampling bag 24 once. Because the rope 31 wraps around the sampling bag 24 in the opposite direction during this process...The distance between the fixed connection point of rope 31 and outer cylinder 21 and the sliding connection point of rope 31 and inner cylinder 22 will also increase or decrease. Therefore, while the inner cylinder 22 rotates along the outer cylinder 21, the rope 31 slides along the inner cylinder 22, reducing the possibility of the inner cylinder 22 rotating poorly due to the length of rope 31. After rope 31 wraps around the sampling bag 24 in the opposite direction, rope 31 slides upward along the inner cylinder 22. Since the fixed connection point of rope 31 and outer cylinder 21 and the sliding connection point of rope 31 and inner cylinder 22 are both located on the same side of the heat-sealing assembly 32, the distance between the fixed connection point of rope 31 and outer cylinder 21 and the sliding connection point of rope 31 and inner cylinder 22 is relatively short. The length of the part of rope 31 located within this distance is... The length is also relatively short and located on the outside of the sampling bag 24. At this time, the rope 31 and the heat sealing assembly 32 no longer clamp the "waist" part of the sampling bag 24, and no longer hinder the downward movement of the sampling bag 24 and the soil column sample. Disconnect the sampling head 23 from the outer cylinder 21, and move the sampling head 23 outward, so that the sampling head 23 drives the sampling bag 24 and the soil column sample in the sampling bag 24 to move outward along the inner cylinder 22. The soil column sample is taken out from the inside of the inner cylinder 22. Disconnect the lower end of the sampling bag 24 from the sampling head 23, so that the sampling bag 24 and the sampling head 23 are separated, and the soil column sample wrapped by the sampling bag 24 is obtained. This makes it easier to store the soil column sample wrapped by the sampling bag 24 in the storage box (not shown in the figure) later. Use scissors or other tools (in the figure) to remove the sampling bag 24. (Not shown) The sampling bag 24 is disassembled to obtain the soil column sample inside. When the next soil column sample needs to be taken, the lower end of the new sampling bag 24 is attached to the sampling head 23. The sampling bag 24 is axially contracted onto the sampling head 23, and folds are formed on the surface of the sampling bag 24. The sampling head 23 is then attached to the outer cylinder 21 to facilitate the next soil column sample. If further sampling is needed after the soil column sample and sampling bag 24 have been segmented, the rope 31 is first restored to its initial state. During restoration, the inner cylinder 22 rotates, causing the rope 31 to wrap around the sampling bag 24 once. At the same time, the rope 31 slides along the inner cylinder 22, thus fixing the connection between the rope 31 and the outer cylinder 21, as well as the sliding connection between the rope 31 and the inner cylinder 22. All connections are located on the same side of the heat-sealing assembly 32. At this point, the rope 31 no longer obstructs the soil column sample from entering the sampling bag 24. When the "waist" of the sampling bag 24 is lifted upward by the soil column sample below, the soil column sample above the "waist" of the sampling bag 24 moves upward along the inner cylinder 22. At this point, the height of the "waist" of the sampling bag 24 is greater than the height of the gap. The soil column sample below the "waist" of the sampling bag 24 passes through the gap and moves upward. After the inner cylinder 22 rotates, it drives the rope 31 to wrap around the sampling bag 24 in the opposite direction. At the same time, the rope 31 slides along the inner cylinder 22, so that the fixed connection between the rope 31 and the outer cylinder 21 and the sliding connection between the rope 31 and the inner cylinder 22 are located on both sides of the heat-sealing assembly 32.Because the sampling bag 24 and the soil column sample located inside the sampling bag 24 are present in the gap, after the rope 31 wraps around the sampling bag 24 in the opposite direction, the wrapped part of the rope 31 is still located on the outside of the sampling bag 24. At this time, the wrapped part of the rope 31 does not obstruct the soil column sample from continuing to enter the sampling tube 20, thus restoring the rope 31 to its initial state, so that the rope 31 can segment the sampling bag 24 and the soil column sample in the next time. The sampling bag 24 of this invention wraps the sampled soil column sample, reducing the contact between the soil column sample and the inner cylinder 22 or... Compared to existing technologies where the soil column sample directly contacts the inner wall of the sampling tube, this method reduces the risk of contamination caused by pollutants remaining on the inner wall of the inner cylinder 22 or outer cylinder 21 during subsequent sampling. By segmenting the sampling bag 24 at a suitable depth underground, the soil column sample is preserved in sections. Furthermore, the "waist" section of the sampling bag 24 is heated and sealed, separating the spaces above and below the "waist" section, thus preventing contamination between each soil column sample section. The separation of soil column samples reduces cross-contamination between the segments. Compared to existing methods that use a single, long soil column sample, this reduces cross-contamination between soil samples at different depths, thus improving sample quality. Because the soil column sample is enclosed and sealed by the sampling bag 24, the loss of volatile organic compounds and moisture is reduced. Compared to existing methods where samples are directly exposed to the environment after being removed from the sampling tube, this improves sample integrity. Compared to existing methods that rely solely on friction between the soil and the tube wall to extract the soil column sample, the enclosed and sealed sampling bag 24 reduces the likelihood of loose soil samples scattering during extraction, thus lowering the sampling rate. Furthermore, because the sampling bag 24 is continuous along the axial direction and the rope 31 is repositionable, the segmentation of the sampling bag 24 and soil column sample in this invention is not a one-time event but can be segmented multiple times. The soil column sample can be segmented at different lengths after entering the sampling bag 24, thereby improving sampling flexibility.
[0022] Example 2 Reference Figures 1 to 10 This is the second embodiment of the present invention, which is based on the previous embodiment.
[0023] like Figure 4 , Figure 9 and Figure 10 As shown, a sleeve 41 is provided on the inner side of the sampling head 23. The lower end of the sleeve 41 is fixedly connected to the sampling head 23. The sampling bag 24 is sleeved and connected to the sleeve 41. A pressure plate 42 is provided on the outer side of the lower end of the sampling bag 24. The pressure plate 42 is detachably connected to the sampling head 23.
[0024] It should be noted that the outer diameter of the sleeve 41 is smaller than the inner diameter of the sampling bag 24, and the inner diameter of the inner cylinder 22 is larger than the outer diameter of the sampling bag 24. This facilitates the insertion of the sampling bag 24, which is fitted onto the sleeve 41, into the inner cylinder 22. The sampling bag 24 is fitted onto the outer wall of the sleeve 41 along its axial direction. The overall length of the sample bag 24 after it is extended is greater than the axial length of the sleeve 41. After the sampling bag 24 is fitted onto the sleeve 41, its surface forms several folds due to the compression along its axial direction. The pressure plate 42 is annular, and its inner diameter is larger than the outer diameter of the sleeve 41. The inner diameter of the pressure plate 42 is smaller than the outer diameter of the lower end of the sampling bag 24. The pressure plate 42 and the sampling head 23 are detachably connected together by a number of screws. The number of screws is preferably eight in this invention. The upper end of the sleeve 41 is located below the lower end of the inner cylinder 22 and there is a gap between the sleeve 41 and the inner cylinder 22. This gap is the gap between the lower end of the inner cylinder 22 and the upper end of the sampling head 23. In the initial state, the pressure plate 42 is located above the lower edge of the sampling bag 24. The pressure plate 42 and the sampling head 23 clamp and fix the lower end of the sampling bag 24 from the upper and lower sides of the lower end of the sampling bag 24, respectively.
[0025] According to the above structure, during the process of the soil column sample entering the sampling bag 24 and the upper end of the sampling bag 24 being pushed upward, the folds on the surface of the sampling bag 24 are unfolded. At the same time, the sampling bag 24 moves upward along the sleeve 41 and its overall length increases. This makes it easier to keep the length of the segmented sampling bag 24 and soil column sample consistent when the sampling bag 24 and soil column sample are subsequently segmented. When it is necessary to disassemble the sampling bag 24, the pressure plate 42 is disassembled by disassembling the disassembly screws, thereby disassembling the lower end of the sampling bag 24 to facilitate the replacement of the sampling bag 24.
[0026] like Figure 4 , Figure 9 and Figure 10 As shown, a baffle 43 is fixedly connected to the inner side of the outer cylinder 21. The baffle 43 is located below the rope 31, and several baffle plates 44 are fixedly connected to the baffle 43.
[0027] It should be noted that the baffle 43 is annular and located below the inner cylinder 22. The height of the baffle 43 is not lower than the height of the top edge of the sleeve 41. It is used to prevent the rope 31 from falling below the gap under its own weight. Several baffles 44 are evenly arranged circumferentially on the inner side of the baffle 43. The number of baffles 44 in this invention is preferably twelve. The baffles 44 are in the shape of "arrows" extending inward, and the tips of the "arrows" point to the side closer to the sleeve 41. The distance between the tips of the opposing baffles 44 is less than the outer diameter of the pleats of the sampling bag 24 and greater than the outer diameter of the pleats of the sampling bag 24 after they are unfolded. It is used to prevent the pleats of the sampling bag 24 from passing through the baffle 43, so that the pleats of the sampling bag 24 can pass through the baffle 43 after they are unfolded.
[0028] According to the above structure, after the sampling bag 24 is fitted onto the sleeve 41, folds are formed on its surface. As the sampling bag 24 moves upward with the soil column, the folds unfold. After the folds unfold, the sampling bag 24 contracts inward under the elastic action, so that the outer diameter of the folded bag is smaller than the outer diameter of the folded bag. Since the baffle 44 prevents the folds from passing through the baffle 43, the folds on the surface of the sampling bag 24 unfold sequentially as the overall length of the sampling bag 24 increases with the upward movement of the soil column. The unfolding order is that the folds near the upper end of the sampling bag 24 unfold first, so as to facilitate the unfolding of the folds and the stability of the increase in the length of the sampling bag 24. The baffle 43 prevents the rope 31 from falling below the gap under its own weight, so that the height of the rope 31 looping part is consistent with the height of the gap, thus making it easier for the rope 31 to segment the sampling bag 24 and the soil column sample at the gap.
[0029] like Figure 4 , Figure 5 , Figure 8 As shown, several sliding sleeves 45 are fixedly connected to the inner cylinder 22, and the rope 31 is slidably connected to the sliding sleeves 45. A winch assembly 46 is fixedly connected to the inner cylinder 22, and the rope 31 is wound together with the output end of the winch assembly 46.
[0030] It should be noted that the rope 31 and the inner cylinder 22 are slidably installed together via a sliding sleeve 45 and a winch assembly 46. Several sliding sleeves 45 are vertically arranged on the outer wall of the inner cylinder 22. Preferably, there are five sliding sleeves 45 in this invention, with the lowermost sliding sleeve 45 located at the lower end of the inner cylinder 22. The height of the contact point between the sliding sleeve 45 and the rope 31 is the same as the height of the gap, which is used for the rope 31 to segment the sampling bag 24 and the soil column sample through the gap. The sliding contact point between the rope 31 and the lowermost sliding sleeve 45 is the sliding connection point between the rope 31 and the inner cylinder 22. The inner wall of the sliding sleeve 45 is smoothed when it contacts the rope 31. To reduce friction between the sliding sleeve 45 and the rope 31, the winch assembly 46 is located at the upper end of the inner cylinder 22. In this invention, the winch assembly 46 is preferably an electric winch. Electric winches are existing technology. The output end is rotated by a motor, causing the rope 31 wound on the output end to extend or retract. The winding method of the rope 31 and the output end of the winch assembly 46 is a known technical means and will not be described in detail here. In the initial state, the rope 31 is arranged such that one end of the rope 31 is fixedly connected to the outer cylinder 21, and the other end of the rope 31 wraps around the sampling bag 24 once and passes through several sliding sleeves 45 in the vertical direction, and is wound and connected to the output end of the winch assembly 46.
[0031] According to the above structure, when the rope 31 needs to slide upward along the inner cylinder 22, the output end of the winch assembly 46 rotates and winds up the rope 31, causing the rope 31 to retract. As the rope 31 slides upward along the inner cylinder 22, it facilitates the inward radial tightening of the rope 31 along the outer loop of the sampling bag 24. When the rope 31 needs to slide downward along the inner cylinder 22, the output end of the winch assembly 46 rotates and releases the rope 31, causing the rope 31 to extend. At this time, the rope 31 slides downward along the inner cylinder 22 under its own weight. Because the inner cylinder 22... After rotation, the sliding sleeve 45 also rotates, which increases the distance between the fixed connection between the rope 31 and the outer cylinder 21 and the lowest sliding sleeve 45. Therefore, even if the rope 31 has difficulty sliding down the inner cylinder 22 under its own weight, the sliding sleeve 45 moves the rope 31 after rotating with the inner cylinder 22 to assist the rope 31 in sliding down the inner cylinder 22. During the process of the rope 31 sliding up and down along the inner cylinder 22, the sliding sleeve 45 is slidably connected to the rope 31, making the process of the rope 31 sliding up and down along the inner cylinder 22 more stable.
[0032] like Figure 5 and Figure 8 As shown, the outer cylinder 21 is rotatably connected to the inner cylinder 22, and a drive motor 51 is fixedly connected to the outer cylinder 21. The output end of the drive motor 51 is fixedly connected to the inner cylinder 22.
[0033] It should be noted that the drive motor 51 in this invention is preferably a motor with forward and reverse rotation and self-locking functions.
[0034] According to the above structure, after the drive motor 51 works, the output end drives the inner cylinder 22 to rotate inside the outer cylinder 21, so that the inner cylinder 22 can drive the rope 31 located in the gap to wrap around the sampling bag 24.
[0035] like Figure 3 and Figure 4 As shown, several sliding plates 52 are fixedly connected to the inner cylinder 22, and several sliding grooves 53 are provided on the outer cylinder 21. The sliding plates 52 and the sliding grooves 53 are rotatably engaged.
[0036] It should be noted that the outer cylinder 21 and the inner cylinder 22 are rotatably connected together by the sliding plate 52 and the sliding groove 53. Several sliding plates 52 are distributed vertically on the outer wall of the inner cylinder 22, and several sliding grooves 53 are distributed vertically on the inner wall of the outer cylinder 21. The number of sliding plates 52 and sliding grooves 53 are equal and correspond one-to-one. In this invention, the number of sliding plates 52 and sliding grooves 53 is preferably four.
[0037] According to the above structure, the sliding plate 52 and the sliding groove 53 cooperate to make the process of the inner cylinder 22 rotating along the outer cylinder 21 more stable.
[0038] like Figure 3 and Figure 4 As shown, a notch 54 is provided on the skateboard 52 for the rope 31 to pass through the skateboard 52.
[0039] It should be noted that the notch 54 makes the slide plate 52 "C" shaped. Since the space at the heat sealing assembly 32 is small, the heat sealing assembly 32 needs to be connected to the power supply module (not shown in the figure) through a wire (not shown in the figure). The wire is fixedly connected to the outer wall of the inner cylinder 22. Therefore, the notch 54 is also used for the wire to pass through the slide plate 52. The notches 54 on several slide plates 52 are in the same position, that is, several notches 54 are collinear in the vertical direction, and the sliding sleeve 45 is aligned with the notch 54 in the vertical direction to prevent the rope 31 from bending when passing through several slide plates 52.
[0040] According to the above structure, during the rotation of the inner cylinder 22 along the outer cylinder 21, the inner cylinder 22 drives the slide plate 52 to rotate along the slide groove 53. At the same time, the inner cylinder 22 also drives the slide sleeve 45 to rotate. Since the slide sleeve 45 and the notch 54 are aligned in the vertical direction, the rope 31 remains vertical when passing through the slide plate 52, which facilitates the rope 31 to slide up and down along the inner cylinder 22.
[0041] like Figure 4 and Figure 9 As shown, the sampling head 23 has an external thread 61 at one end near the outer cylinder 21, and the outer cylinder 21 has an internal thread 62 at one end near the sampling head 23. The external thread 61 and the internal thread 62 are threaded together.
[0042] It should be noted that the sampling head 23 and the outer cylinder 21 are detachably connected together by the external thread 61 and the internal thread 62.
[0043] According to the above structure, the external thread 61 and the internal thread 62 are matched to facilitate the disassembly and installation between the sampling head 23 and the outer cylinder 21, thereby facilitating the disassembly and replacement of the sampling head 23, and also facilitating the exposure of the sampling bag 24 after the sampling head 23 is disassembled for disassembly and replacement.
[0044] like Figure 1 As shown, a telescopic component 63 is fixedly connected to the support frame 10, and the output end of the telescopic component 63 is fixedly connected to the outer cylinder 21.
[0045] It should be noted that the telescopic component 63 is preferably a multi-stage telescopic hydraulic cylinder in this invention to meet the requirements of long stroke and equipment compactness. The multi-stage telescopic hydraulic cylinder is existing technology and is equipped with a hydraulic pump, control valve group, oil tank, pipeline, hydraulic oil and necessary filter sealing device (not shown in the figure). Since they are all known technical means, they will not be described in detail here.
[0046] According to the above structure, after the telescopic component 63 is working, the output end drives the outer cylinder 21 to move downward, so that the outer cylinder 21, inner cylinder 22 and sampling head 23 go deep into the ground, thereby facilitating the sampling of the underground soil.
[0047] like Figure 1 As shown, a lifting frame 64 is fixedly connected to the outer cylinder 21, and the lifting frame 64 is slidably connected to the support frame 10.
[0048] It should be noted that sliding holes are provided at both ends of the lifting frame 64, and the sliding holes slide in a vertical direction with the columns on the support frame 10.
[0049] According to the above structure, the lifting frame 64 is slidably connected to the support frame 10, making the process of the outer cylinder 21 sliding up and down along the support frame 10 more stable.
[0050] The working principle of this invention is as follows: After the outer cylinder 21 slides along the support frame 10, it drives the inner cylinder 22 and the sampling head 23 into the soil, so that the soil column sample enters the sampling bag 24 and pushes the top of the sampling bag 24 upward, so that the sampling bag 24 wrapped with the soil column sample moves upward along the inner cylinder 22. When it is necessary to segment the soil column sample, the rope 31 slides and tightens inward to cut the soil column sample in the lateral direction, and the sampling bag 24 at that point is gathered to the heat sealing component 32. After the heat sealing component 32 works, it heats and seals the sampling bag 24 at that point, so that the soil column sample can be segmented during sampling. Compared with the prior art, by wrapping the soil column sample with the sampling bag 24, the contamination of the soil column sample by the inner wall of the inner cylinder 22 or the outer cylinder 21 during multiple sampling processes is reduced. By segmenting the soil column sample, the cross-contamination between soil samples at different depths is reduced, thereby improving the sample quality.
[0051] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.
Claims
1. A mining ecological geological sampling drilling device, characterized in that, include: Support frame (10); A sampling tube (20) is mounted on a support frame (10). The sampling tube (20) includes an outer cylinder (21) that is slidably mounted on the support frame (10). An inner cylinder (22) is rotatably mounted on the inner side of the outer cylinder (21). A sampling head (23) is provided below the inner cylinder (22). The sampling head (23) is detachably connected to the outer cylinder (21). A sampling bag (24) is provided on the inner side of the inner cylinder (22). The lower end of the sampling bag (24) is detachably connected to the sampling head (23). The segmentation mechanism (30) is disposed on the sampling tube (20). The segmentation mechanism (30) includes a rope (31) disposed on the outside of the sampling bag (24). One end of the rope (31) is fixedly connected to the outer cylinder (21), and the other end of the rope (31) is slidably installed with the inner cylinder (22). A heat sealing assembly (32) is disposed on the outside of the sampling bag (24), and the heat sealing assembly (32) is fixedly connected to the inner cylinder (22). The rope (31) slides along the inner cylinder (22) and then squeezes the sampling bag (24) inward, so that the sampling bag (24) is gathered to the heat-sealing assembly (32).
2. The mine ecological geological sampling drilling device according to claim 1, characterized in that: The inner side of the sampling head (23) is provided with a sleeve (41), the lower end of the sleeve (41) is fixedly connected to the sampling head (23), the sampling bag (24) is sleeved and connected to the sleeve (41), and a pressure plate (42) is provided on the outer side of the lower end of the sampling bag (24), and the pressure plate (42) is detachably connected to the sampling head (23).
3. The mine ecological geological sampling drilling device according to claim 1, characterized in that: A baffle (43) is fixedly connected to the inner side of the outer cylinder (21). The baffle (43) is located below the rope (31). Several baffle plates (44) are fixedly connected to the baffle (43).
4. The mine ecological geological sampling drilling device according to claim 1, characterized in that: Several sliding sleeves (45) are fixedly connected to the inner cylinder (22), the rope (31) is slidably connected to the sliding sleeves (45), and a winch assembly (46) is fixedly connected to the inner cylinder (22). The rope (31) is wound together with the output end of the winch assembly (46).
5. The mine ecological geological sampling drilling device according to claim 1, characterized in that: The outer cylinder (21) is rotatably connected to the inner cylinder (22), and a drive motor (51) is fixedly connected to the outer cylinder (21). The output end of the drive motor (51) is fixedly connected to the inner cylinder (22).
6. The mine ecological geological sampling drilling device according to claim 1, characterized in that: Several sliding plates (52) are fixedly connected to the inner cylinder (22), and several sliding grooves (53) are provided on the outer cylinder (21). The sliding plates (52) and the sliding grooves (53) are rotatably engaged.
7. The mine ecological geological sampling drilling device according to claim 6, characterized in that: The skateboard (52) has a notch (54) for the rope (31) to pass through the skateboard (52).
8. The mine ecological geological sampling drilling device according to claim 1, characterized in that: The sampling head (23) has an external thread (61) at one end near the outer cylinder (21), and the outer cylinder (21) has an internal thread (62) at one end near the sampling head (23). The external thread (61) and the internal thread (62) are threaded together.
9. The mine ecological geological sampling drilling device according to claim 1, characterized in that: A telescopic component (63) is fixedly connected to the support frame (10), and the output end of the telescopic component (63) is fixedly connected to the outer cylinder (21).
10. The mine ecological geological sampling drilling device according to claim 1, characterized in that: A lifting frame (64) is fixedly connected to the outer cylinder (21), and the lifting frame (64) is slidably connected to the support frame (10).