A soil fine sampling device and method for open-pit coal mine dump

Abstract

The present invention relates to the technical field of soil sampling equipment, and specifically discloses a soil fine sampling device and method for an open-pit coal mine dump, comprising a mounting cylinder, a lifting cylinder is slidably installed inside the mounting cylinder, one end of the lifting cylinder passes through the mounting cylinder, and a bottom plate is installed, a drill bit is rotatably installed on the side of the bottom plate away from the mounting cylinder, mounting grooves are provided on both sides of the outer wall of the mounting cylinder in the length direction, a first rotating plate and a second rotating plate are respectively installed at both ends of the inner side of the mounting groove, the first rotating plate and the second rotating plate are rotatably connected to each other at one end close to the opposite surface, a second electric rotating shaft is rotatably installed on the side of the first rotating plate and the second rotating plate away from the mounting cylinder, a rotating wheel is installed on the outer wall of the second electric rotating shaft, and a suction cup is provided on the side of the rotating wheel away from the mounting cylinder. The present invention automatically digs, screens and stores the sampled soil when in use, is more convenient to use, and improves efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling equipment, and in particular to a device and method for fine sampling of soil in an open-pit coal mine dump. Background Art

[0002] An open-pit coal mine dump is a place where stripping materials and waste rock are discharged in a centralized manner during the mining process of an open-pit mine. The dump, also known as the waste rock dump, is one of the basic processes of open-pit mining. The dump is a place where mining waste is discharged in a centralized manner, and it mainly receives waste such as rock, soil, and waste rock stripped during the mining process. These wastes include humus topsoil, weathered rock and soil, hard rock, and mixed rock and soil, which require a large amount of land, and the dust and sewage generated will pollute the environment. In order to facilitate the assessment of soil quality, monitor pollution conditions, and provide a scientific basis for soil management, it is necessary to regularly sample and test the soil in the dump.

[0003] Because the soil in the open-pit coal mine spoil dump contains a large amount of gravel, and common soil sampling equipment is unable to screen and filter the stone particles in the soil when in use, workers need to complete soil sampling, and then screen the soil through screening equipment before storing it in the sampling tube for testing. It is cumbersome to use, and it is unable to automatically dig, screen and store the soil during soil sampling. Moreover, the sampling equipment needs to be manually carried to the designated location by the workers during use, which wastes a lot of physical strength during use, and the soil sampling efficiency is low, which increases the contact time between the workers and the air dust in the spoil dump. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a device and method for fine sampling of soil in an open-pit coal mine dump.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device and method for fine soil sampling in an open-pit coal mine spoil dump, comprising a mounting tube, a lifting tube being slidably mounted inside the mounting tube, one end of the lifting tube passing through the mounting tube and being mounted with a bottom plate, a drill bit being rotatably mounted on a side of the bottom plate away from the mounting tube, mounting grooves being provided on both sides of the outer wall of the mounting tube in the length direction, a first rotating plate and a second rotating plate being respectively mounted on both ends of the inner side of the mounting groove, the first rotating plate and the second rotating plate being rotatably connected to each other at one end close to opposite surfaces, a second electric rotating shaft being rotatably mounted on a side of the first rotating plate and the second rotating plate away from the mounting tube, a rotating wheel being mounted on the outer wall of the second electric rotating shaft, and a suction cup being provided on a side of the rotating wheel away from the mounting tube.

[0007] Preferably, fixing holes are provided on the side faces of one end of the first rotating plate and the second rotating plate close to the opposite faces, guide grooves are provided on the inner walls on both sides of the mounting groove in the length direction, a first support rod is rotatably mounted on the end of the first rotating plate away from the fixing hole, and both ends of the first support rod are respectively slidably mounted inside the two guide grooves, and a second support rod is rotatably mounted on the end of the second rotating plate away from the fixing hole, and both ends of the second support rod are respectively mounted on the inner walls on both sides of the mounting groove.

[0008] Preferably, an annular groove is provided on the outer wall of the lifting cylinder, an annular rubber airbag is provided on the inner wall of the groove at one end close to the mounting cylinder, a scraper is installed inside the groove at the end of the rubber airbag away from the mounting cylinder, and a chamfer is provided on the corner of the outer wall of the scraper away from the rubber airbag.

[0009] Preferably, a plurality of feed holes are provided on the inner wall of the groove at one end away from the rubber airbag, a through hole is provided on the outer wall of the lifting cylinder at one end away from the mounting cylinder, a baffle is installed on the inner wall of the lifting cylinder, a filter cylinder is installed on the side of the baffle away from the mounting cylinder, and the feed holes are located on the side of the filter cylinder.

[0010] Preferably, a connecting plate is installed at one end of the filter cylinder away from the baffle, the outer wall of the connecting plate is installed on the inner wall of the lifting cylinder, and the connecting plate and the baffle are respectively located inside the lifting cylinder at both ends of the feed hole.

[0011] Preferably, a collecting box is placed at one end of the connecting plate away from the filter cartridge, the end of the collecting box away from the connecting plate is in contact with the side of the bottom plate, a conveying hole is opened on the side of the connecting plate, and the conveying hole passes through the connecting plate and the filter cartridge.

[0012] Preferably, a first electric rotating shaft is rotatably installed on the side of the base plate away from the lifting cylinder, a drill bit is installed on the outer wall of the first electric rotating shaft, an end of the drill bit close to the lifting cylinder is abutted against the base plate, an air pump is installed on the end of the baffle away from the filter cylinder, and the air pump and the rubber airbag are connected to each other through an air pipe.

[0013] Preferably, the through hole is located on the side of the collecting box, and an arc-shaped storage groove is provided on the inner wall of one side of the through hole. An arc-shaped sliding plate is slidably installed in the storage groove, one end of the sliding plate passes through the interior of the through hole, and a fixing strip is installed on the side of one end of the sliding plate located inside the through hole in the length direction, and a discharge hole matching the through hole is provided on the outer wall of the mounting cylinder.

[0014] Preferably, an electric telescopic rod is installed at the end of the mounting cylinder away from the lifting cylinder, one end of the transmission rod of the electric telescopic rod passes through the interior of the mounting cylinder and is installed at the end of the lifting cylinder located inside the mounting cylinder, a connecting block is installed on the side of the end of the electric telescopic rod close to the mounting cylinder, a fixing bolt is installed on the side of the connecting block, the fixing bolt passes through the connecting block and is threadedly installed on the top of the mounting cylinder, limiting grooves are provided on the inner walls on both sides of the mounting cylinder in the length direction, and sliders are installed on the outer walls on both sides of the end of the lifting cylinder located inside the mounting cylinder, and the sliders are slidably installed in the limiting grooves.

[0015] A method for using a soil fine sampling device for an open-pit coal mine dump in the present invention comprises the following steps:

[0016] Step 1: The second electric rotating shaft drives the rotating wheel to rotate on the ground, and drives the installation cylinder to move. When the installation cylinder moves to the specified position, the electric telescopic rod and the drill bit are installed, and the installation cylinder is erected on the ground, so that the end of the installation cylinder close to the drill bit is in contact with the ground, and the first rotating plate and the second rotating plate on the same side are folded, so that the rotating wheel on the second rotating plate is adsorbed on the ground through the suction cup, and the fixing bolt passes through the fixing holes on the first rotating plate and the second rotating plate and is inserted into the ground;

[0017] Step 2: The staff places the collection box inside the lifting cylinder through the discharge hole and the through hole, and pulls the sliding plate through the fixed bar to protect the through hole. The air pump inflates the rubber airbag so that the rubber airbag drives the scraper to cover the feed hole. The electric telescopic rod drives the lifting cylinder downward toward the ground, and the drill bit drills a hole in the ground. The electric telescopic rod and the drill bit cooperate with each other to drive the lifting cylinder to move to the specified position on the ground.

[0018] Step 3: The air pump extracts the gas inside the rubber airbag, so that the scraper moves to the top of the feed hole. When the lifting cylinder moves down, the scraper can lightly scrape the soil on the inner wall surface of the hole drilled by the drill bit, so that the soil falls into the lifting cylinder through the groove;

[0019] Step 4: After the amount of soil inside the lifting cylinder gradually increases, the rotation of the drill bit causes a slight vibration of the lifting cylinder, and small particles of soil enter the filter cylinder. The fine stones are located between the inner wall of the lifting cylinder and the filter cylinder, and the soil inside the filter cylinder enters the collection box through the conveying hole.

[0020] Step 5: The staff drives the lifting cylinder to move to the inside of the installation cylinder through the electric telescopic rod, pulls the sliding plate through the discharge hole to move it, and takes the collection box. When cleaning the pebbles inside the lifting cylinder, move one end of the lifting cylinder out of the installation cylinder, and place the lifting cylinder and the installation cylinder horizontally on the ground. After shaking the lifting cylinder, the pebbles inside the lifting cylinder can be moved out through the feed hole.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the present invention, the rotating wheel is connected to the first rotating plate or the second rotating plate through the second electric rotating shaft, and the second electric rotating shaft drives the rotating wheel to rotate on the ground, and at the same time drives the installation cylinder to move on the ground until the installation cylinder is moved to the designated position on the ground of the spoil yard of the open-pit coal mine. When in use, there is no need for staff to manually carry the installation cylinder to the designated position, which saves physical strength and is more convenient to use. The rotating wheel on the side of the second rotating plate abuts against the ground and is adsorbed to the ground through the suction cup on the side of the rotating wheel. At the same time, the area of ​​the side of the rotating wheel is larger, which can increase the contact area with the ground when in use, so that the rotating wheel and the second rotating plate can better support and reinforce the installation cylinder, making the installation cylinder more stable when in use.

[0023] In the present invention, the staff places the collection box for storing the sampled soil inside the lifting cylinder through the discharge hole and the through hole, and the two ends of the collection box are respectively abutted against the bottom plate and the connecting plate, and the bottom plate and the connecting plate can clamp the collection box when in use, to prevent the collection box from colliding with the inner wall of the lifting cylinder due to the shaking of the lifting cylinder when in use, and can better protect the collection box when in use. When the soil sampling is completed, the staff can take the collection box inside the lifting cylinder through the discharge hole and the through hole, and automatically dig, screen and store the sampled soil when in use, which is more convenient to use and more efficient.

[0024] The air pump in the present invention draws the gas inside the rubber airbag into the space between one end of the lifting cylinder close to the mounting cylinder and the baffle, and the scraper disconnects the shielding of the feed hole. As the lifting cylinder moves downward, the scraper will also move downward slowly, and slightly scrape the soil on the inner wall of the drilled hole, and allow the scraped soil to enter the interior of the lifting cylinder through the groove and the feed hole. The open-pit coal mine spoil yard is exposed to the sun for a long time, and the soil is relatively dry, so the soil that is slightly scraped by the scraper on the inner wall of the drilled hole and falls into the lifting cylinder is mostly powdery soil. When the drill bit drills a hole in the soil, it drives the lifting cylinder to shake slightly, so that the powdery soil with finer particles in the soil between the outer wall of the filter cylinder and the inner wall of the lifting cylinder can enter the interior of the filter cylinder through the filter holes on the filter cylinder, while the fine stones in the soil still remain between the outer wall of the filter cylinder and the inner wall of the lifting cylinder, so that the soil is screened and filtered.

[0025] In the present invention, the installation cylinder and the lifting cylinder are placed horizontally above the ground. The vibration amplitude of the drill bit when rotating is larger, and the lifting cylinder will also shake, so that the residual pebbles and soil between the outer wall of the filter cylinder and the inner wall of the lifting cylinder are moved out of the lifting cylinder through the feed hole. After the soil sampling is completed, the residual soil inside the lifting cylinder can be cleaned by the vibration of the drill bit and the lifting cylinder, without the need for manual cleaning by the staff, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A stereoscopic diagram of a soil fine sampling device and method for an open-pit coal mine dump proposed by the present invention;

[0027] Figure 2 A cross-sectional view of an installation tube of a soil fine sampling device and method for an open-pit coal mine dump proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the installation cylinder structure of a soil fine sampling device and method for an open-pit coal mine dump proposed by the present invention;

[0029] Figure 4 This is a schematic diagram of the installation structure of the rotating wheel of a soil fine sampling device and method for an open-pit coal mine dump proposed by the present invention;

[0030] Figure 5 This is a schematic diagram of the rubber airbag installation structure of a soil fine sampling device and method for an open-pit coal mine dump proposed by the present invention;

[0031] Figure 6 This is a schematic diagram of the first electric shaft installation structure of a device and method for fine soil sampling in an open-pit coal mine dump proposed by the present invention;

[0032] Figure 7 A schematic diagram of the lifting cylinder structure of a device and method for fine soil sampling in an open-pit coal mine dump proposed by the present invention;

[0033] Figure 8 The present invention provides a schematic diagram of the installation structure of a filter cartridge for a soil fine sampling device and method for an open-pit coal mine dump.

[0034] In the figure: 1. mounting cylinder; 2. lifting cylinder; 3. electric telescopic rod; 4. discharge hole; 5. mounting groove; 6. guide groove; 7. first rotating plate; 8. second rotating plate; 9. rotating wheel; 10. bottom plate; 11. drill bit; 12. collecting box; 13. baffle; 14. air pump; 15. filter cylinder; 16. connecting block; 17. fixing bolt; 18. first support rod; 19. second support rod; 20. slider; 21. limiting groove; 22. groove; 23. rubber airbag; 24. scraper; 25. chamfer; 26. through hole; 27. sliding plate; 28. first electric shaft; 29. ​​feeding hole; 30. fixing strip; 31. connecting plate; 32. conveying hole; 33. fixing hole; 34. second electric shaft; 35. storage groove. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] Reference Figure 1-8 A device and method for fine soil sampling in an open-pit coal mine spoil dump, comprising a mounting tube 1, a lifting tube 2 is slidably installed inside the mounting tube 1, one end of the lifting tube 2 passes through the mounting tube 1 and is installed with a bottom plate 10, a drill bit 11 is rotatably installed on the side of the bottom plate 10 away from the mounting tube 1, mounting grooves 5 are opened on the outer walls of both sides of the mounting tube 1 in the length direction, a first rotating plate 7 and a second rotating plate 8 are respectively installed at both ends of the mounting groove 5, the first rotating plate 7 and the second rotating plate 8 are rotatably connected to each other at one end close to the opposite surface, a second electric rotating shaft 34 is rotatably installed on the side of the first rotating plate 7 and the second rotating plate 8 away from the mounting tube 1, a rotating wheel 9 is installed on the outer wall of the second electric rotating shaft 34, and a suction cup is provided on the side of the rotating wheel 9 away from the mounting tube 1.

[0038] As a technical optimization scheme of the present invention, the side surfaces of the first rotating plate 7 and the second rotating plate 8 close to the opposite surfaces are both provided with fixing holes 33, and the inner walls on both sides of the mounting groove 5 are both provided with guide grooves 6 in the length direction. The end of the first rotating plate 7 away from the fixing hole 33 is rotatably installed with the first support rod 18, and the two ends of the first support rod 18 are respectively slidably installed inside the two guide grooves 6, and the end of the second rotating plate 8 away from the fixing hole 33 is rotatably installed with the second support rod 19, and the two ends of the second support rod 19 are respectively installed on the inner walls on both sides of the mounting groove 5; when the mounting tube 1 moves, the four rotating wheels 9 drive the mounting tube 1 to move on the ground, and when the mounting tube 1 needs to be fixed in position, two of the rotating wheels 9 can abut against the ground to increase the contact area with the ground, so as to better support the mounting tube 1.

[0039] As a technical optimization scheme of the present invention, an annular groove 22 is provided on the outer wall of the lifting cylinder 2, and an annular rubber airbag 23 is provided on the inner wall of the groove 22 at one end close to the mounting cylinder 1, and a scraper 24 is installed inside the groove 22 at the end of the rubber airbag 23 away from the mounting cylinder 1, and a chamfer 25 is provided on the corner position of the end of the outer wall of the scraper 24 away from the rubber airbag 23; the scraper 24 can slightly scrape the soil on the inner wall of the drill hole, so as to collect fine particles of soil.

[0040] As a technical optimization scheme of the present invention, a plurality of feed holes 29 are opened on the inner wall of the groove 22 at one end away from the rubber airbag 23, a through hole 26 is opened on the outer wall of the lifting cylinder 2 at one end away from the mounting cylinder 1, a baffle 13 is installed on the inner wall of the lifting cylinder 2, a filter cylinder 15 is installed on the side of the baffle 13 away from the mounting cylinder 1, and the feed hole 29 is located on the side of the filter cylinder 15; the filter cylinder 15 can filter pebbles in the soil to prevent the pebbles from entering the interior of the collection box 12.

[0041] As a technical optimization solution of the present invention, a connecting plate 31 is installed at one end of the filter cylinder 15 away from the baffle 13, and the outer wall of the connecting plate 31 is installed on the inner wall of the lifting cylinder 2. The connecting plate 31 and the baffle 13 are respectively located inside the lifting cylinder 2 at the two ends of the feed hole 29; when in use, the connecting plate 31 can support and limit the position of the end of the filter cylinder 15 close to the drill bit 11.

[0042] As a technical optimization solution of the present invention, a collecting box 12 is placed at one end of the connecting plate 31 away from the filter cylinder 15, and one end of the collecting box 12 away from the connecting plate 31 is abutted against the side of the bottom plate 10. A conveying hole 32 is opened on the side of the connecting plate 31, and the conveying hole 32 passes through the connecting plate 31 and the filter cylinder 15. When in use, the staff can take the collecting box 12 at any time when the lifting cylinder 2 is above the ground.

[0043] As a technical optimization scheme of the present invention, a first electric rotating shaft 28 is rotatably installed on the side of the base plate 10 away from the lifting cylinder 2, and the drill bit 11 is installed on the outer wall of the first electric rotating shaft 28. The end of the drill bit 11 close to the lifting cylinder 2 is in contact with the base plate 10, and an air pump 14 is installed on the end of the baffle 13 away from the filter cylinder 15. The air pump 14 and the rubber airbag 23 are connected to each other through an air pipe; when in use, the air pump 14 can fill and extract gas from the inside of the rubber airbag 23, so as to facilitate the scraper 24 to move its position through the rubber airbag 23.

[0044] As a technical optimization scheme of the present invention, the through hole 26 is located on the side of the collecting box 12, and an arc-shaped storage groove 35 is provided on the inner wall of one side of the through hole 26. An arc-shaped sliding plate 27 is slidably installed in the storage groove 35. One end of the sliding plate 27 passes through the interior of the through hole 26, and a fixing strip 30 is installed on the side of one end of the sliding plate 27 located inside the through hole 26 in the length direction, and a discharge hole 4 matching the through hole 26 is provided on the outer wall of the mounting cylinder 1; the sliding plate 27 can provide better protection for the collecting box 12 when in use.

[0045] As a technical optimization scheme of the present invention, an electric telescopic rod 3 is installed at the end of the mounting cylinder 1 away from the lifting cylinder 2, one end of the transmission rod of the electric telescopic rod 3 passes through the interior of the mounting cylinder 1 and is installed at the end of the lifting cylinder 2 located inside the mounting cylinder 1, a connecting block 16 is installed on the side of the end of the electric telescopic rod 3 close to the mounting cylinder 1, a fixing bolt 17 is installed on the side of the connecting block 16, the fixing bolt 17 passes through the connecting block 16 and is threadedly installed on the top of the mounting cylinder 1, limiting grooves 21 are provided on the inner walls on both sides of the mounting cylinder 1 in the length direction, and sliding blocks 20 are installed on the outer walls on both sides of the end of the lifting cylinder 2 located inside the mounting cylinder 1, and the sliding blocks 20 are slidably installed in the limiting grooves 21; when in use, the staff can install and disassemble the electric telescopic rod 3 at any time according to the usage situation, so that the staff can carry and move the mounting cylinder 1 and the electric telescopic rod 3 conveniently.

[0046] A method for using a soil fine sampling device for an open-pit coal mine dump in the present invention comprises the following steps:

[0047] Step 1: The second electric rotating shaft 34 drives the rotating wheel 9 to rotate on the ground, and drives the installation tube 1 to move. When the installation tube 1 moves to the specified position, the electric telescopic rod 3 and the drill bit 11 are installed, and the installation tube 1 is erected on the ground, so that the end of the installation tube 1 close to the drill bit 11 is in contact with the ground, and the first rotating plate 7 and the second rotating plate 8 on the same side are folded, so that the rotating wheel 9 on the second rotating plate 8 is adsorbed on the ground through the suction cup, and the fixing bolt passes through the fixing holes 33 on the first rotating plate 7 and the second rotating plate 8 and is inserted into the ground;

[0048] Step 2: The staff places the collection box 12 inside the lifting cylinder 2 through the discharge hole 4 and the through hole 26, and pulls the sliding plate 27 through the fixing bar 30 to protect the through hole 26. The air pump 14 inflates the rubber airbag 23 so that the rubber airbag 23 drives the scraper 24 to cover the feed hole 29. The electric telescopic rod 3 drives the lifting cylinder 2 to press downward toward the ground, and the drill bit 11 drills a hole in the ground. The electric telescopic rod 3 and the drill bit 11 cooperate with each other to drive the lifting cylinder 2 to move to a specified position on the ground.

[0049] Step 3: The air pump 14 extracts the gas inside the rubber airbag 23, so that the scraper 24 moves to the top of the feed hole 29. When the lifting cylinder 2 moves downward, the scraper 24 can slightly scrape the soil on the inner wall surface of the hole drilled by the drill bit 11, so that the soil falls into the lifting cylinder 2 through the groove 22;

[0050] Step 4: After the amount of soil inside the lifting cylinder 2 gradually increases, the drill bit 11 rotates to cause the lifting cylinder 2 to vibrate slightly, and small particles of soil enter the filter cylinder 15, while the fine stones are located between the inner wall of the lifting cylinder 2 and the filter cylinder 15. The soil inside the filter cylinder 15 enters the collection box 12 through the conveying hole 32;

[0051] Step 5: The staff drives the lifting cylinder 2 to move to the inside of the installation cylinder 1 through the electric telescopic rod 3, pulls the sliding plate 27 to move through the discharge hole 4, and takes the collection box 12. When cleaning the pebbles inside the lifting cylinder 2, one end of the lifting cylinder 2 is moved out of the installation cylinder 1, and the lifting cylinder 2 and the installation cylinder 1 are placed horizontally on the ground. After shaking the lifting cylinder 2, the pebbles inside the lifting cylinder 2 can be moved out through the feed hole 29.

[0052] When the present invention is used, the staff installs the first rotating plate 7 and the second rotating plate 8 inside the mounting groove 5 on the side of the mounting tube 1, and the bottom ends of the rotating wheels 9 are both in contact with the ground, while the mounting tube 1 is located above the ground, and the rotating wheels 9 can support the mounting tube 1. The rotating wheels 9 are connected to the first rotating plate 7 or the second rotating plate 8 through the second electric rotating shaft 34. The staff can drive the rotating wheels 9 to rotate on the ground through the second electric rotating shaft 34 through remote control, and drive the mounting tube 1 to move on the ground at the same time, until the mounting tube 1 moves to the designated position on the ground of the spoil dump of the open-pit coal mine. When in use, the staff does not need to manually carry the mounting tube 1 to the designated position, which saves more physical effort and is more convenient to use. The staff installs the drill bit 11 on the first electric rotating shaft 28 on the side of the bottom plate 10, and makes the end of the drill bit 11 close to the mounting tube 1 abut against the bottom plate 10 to prevent soil from entering the gap between the drill bit 11 and the bottom plate 10.

[0053] The staff erects the installation cylinder 1 at the designated position on the ground and inserts the drill bit 11 into the ground, and the end of the installation cylinder 1 close to the discharge hole 4 abuts against the ground. At the same time, the staff pulls the first rotating plate 7 to make the end of the first rotating plate 7 close to the first support rod 18 slide in the direction close to the second rotating plate 8 inside the installation groove 5. At the same time, the end of the first rotating plate 7 away from the first support rod 18 will press down the end of the second rotating plate 8 away from the second support rod 19 until the first rotating plate 7 and the second rotating plate 8 close to the side of the installation cylinder 1 abut against each other, and at the same time, the rotating wheel 9 on the side of the second rotating plate 8 abuts against the ground and is adsorbed to the ground through the suction cup on the side of the rotating wheel 9. At the same time, the area of ​​the side of the rotating wheel 9 is large, which can increase the contact area with the ground when in use, so that the rotating wheel 9 and the second rotating plate 8 can better support and reinforce the installation cylinder 1, making the installation cylinder 1 more stable when in use. The staff inserts the fixing bolt into the fixing hole 33 on the first rotating plate 7 and the second rotating plate 8, and installs the bottom end of the fixing bolt on the ground. When in use, the fixing bolt can better fix the first rotating plate 7, the second rotating plate 8 and the ground, further improving the stability of the installation tube 1 when in use.

[0054] The staff pulls the fixing bar 30 inside the through hole 26 on the lifting cylinder 2 through the discharge hole 4, and the sliding plate 27 is moved to the inside of the storage groove 35 through the fixing bar 30, and the staff can place the collection box 12 for storing the sampled soil inside the lifting cylinder 2, and the two ends of the collection box 12 are respectively abutted against the bottom plate 10 and the connecting plate 31, and the bottom plate 10 and the connecting plate 31 can clamp the collection box 12 when in use to prevent the collection box 12 from colliding with the inner wall of the lifting cylinder 2 due to the shaking of the lifting cylinder 2 when in use, and can better protect the collection box 12 when in use. At the same time, the collection box 12 is connected with the inside of the filter cylinder 15 through the conveying hole 32.

[0055] The staff installs the electric telescopic rod 3 on the top of the installation tube 1, and connects and fixes the connecting block 16 on the electric telescopic rod 3 and the top of the installation tube 1 with the fixing bolt 17. At the same time, the transmission rod of the electric telescopic rod 3 penetrates the interior of the installation tube 1 and is connected with the lifting tube 2. The transmission rod of the electric telescopic rod 3 pushes the lifting tube 2 to move toward the ground, and the drill bit 11 drills the soil on the ground until the outer wall of the lifting tube 2 near the groove 22 is located above the specified soil sampling depth. When in use, the sliding plate 27 seals and protects the through hole 26. At the same time, because the fixing bar 30 is installed on the outer wall of the sliding plate 27 in the length direction, the fixing bar 30 will slide on the inner wall of the drill hole when the lifting tube 2 moves downward, and the fixing bar 30 will not drive the sliding plate 27 to move left and right. When drilling holes and sampling, the sliding plate 27 can protect the collection box 12 in real time.

[0056] The air pump 14 draws the gas inside the rubber airbag 23 to the space between the end of the lifting cylinder 2 near the mounting cylinder 1 and the baffle 13, and the air and air pressure inside the rubber airbag 23 decrease, so that when the lifting cylinder 2 moves downward, the soil on the inner wall of the drill hole pushes the scraper 24 to move upward until the scraper 24 and the inner wall of the groove 22 clamp the rubber airbag 23, and the scraper 24 disconnects the shielding of the feed hole 29. As the lifting cylinder 2 moves downward, the scraper 24 will also move downward slowly, and slightly scrape the soil on the inner wall of the drill hole, and the scraped soil will enter the interior of the lifting cylinder 2 through the groove 22 and the feed hole 29. When the soil is not sampled, the bottom end of the scraper 24 abuts against the inner wall of the groove 22, and the feed hole 29 is blocked. At the same time, because the bottom end of the outer wall of the scraper 24 is provided with a chamfer 25, the soil scraped by the scraper 24 cannot enter the feed hole 29 because the scraper 24 abuts against the inner wall of the groove 22. As the lifting cylinder 2 and the scraper 24 move downward, the chamfer 25 on the scraper 24 squeezes the scraped soil and moves up again along the chamfer 25 and the outer wall of the scraper 24. At the same time, the rubber airbag 23 continuously pushes the scraper 24 through the air pressure inside it when in use until it moves to the specified position depth.

[0057] When the scraper 24 breaks the shielding of the feed hole 29, the soil scraped by the scraper 24 will directly fall into the groove 22, and then fall into the lift cylinder 2 through the feed hole 29 again, and the soil falling into the lift cylinder 2 is located between the outer wall of the filter cylinder 15 and the inner wall of the lift cylinder 2. Because the open-pit coal mine dump is located in a wide area outside and is exposed to the sun for a long time, the soil is relatively dry. The soil that falls into the lift cylinder 2 by the scraper 24 slightly scraping the inner wall of the drill hole is mostly powdered soil. When the drill bit 11 drills a hole in the soil, the drill bit 11 will shake and drive the lift cylinder 2 to shake slightly, so that the powdered soil with finer particles in the soil between the outer wall of the filter cylinder 15 and the inner wall of the lift cylinder 2 can enter the inside of the filter cylinder 15 through the filter hole on the filter cylinder 15, while the fine stones in the soil still remain between the outer wall of the filter cylinder 15 and the inner wall of the lift cylinder 2.

[0058] The soil inside the filter cylinder 15 enters the interior of the collecting box 12 through the conveying hole 32 through the slight shaking of the lifting cylinder 2. When the specified amount of soil is collected in the collecting box 12, the drill bit 11 stops drilling. At the same time, the electric telescopic rod 3 drives the lifting cylinder 2 and the drill bit 11 to move out of the ground, and the lifting cylinder 2 moves to the interior of the mounting cylinder 1. The staff can pull the sliding plate 27 through the discharge hole 4 and the fixing bar 30 on the mounting cylinder 1 to move, and take the collecting box 12 inside the lifting cylinder 2. When in use, the sampled soil is automatically dug, screened and stored, which is more convenient to use and more efficient.

[0059] When the staff has finished taking the collection box 12, the staff can slide the first rotating plate 7 and the second rotating plate 8 to the inside of the installation groove 5 again, so that the four rotating wheels 9 support the installation cylinder 1, and push the lifting cylinder 2 out of the installation cylinder 1 again through the electric telescopic rod 3, and start the drill bit 11 at the same time. Because the installation cylinder 1 and the lifting cylinder 2 are placed horizontally on the ground, the vibration amplitude of the drill bit 11 is larger when it rotates, and the lifting cylinder 2 will also shake, so that the remaining pebbles and soil between the outer wall of the filter cylinder 15 and the inner wall of the lifting cylinder 2 are moved out of the lifting cylinder 2 through the feed hole 29. When the inside of the lifting cylinder 2 is cleaned, the electric telescopic rod 3 drives the lifting cylinder 2 to move to the inside of the installation cylinder 1 again, and the staff disassembles and stores the drill bit 11 and the electric telescopic rod 3. At the same time, the second electric shaft 34 drives the installation cylinder 1 and the lifting cylinder 2 to move through the rotating wheel 9, which is convenient for the staff to carry the installation cylinder 1 and the lifting cylinder 2.

[0060] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A soil fine sampling device for an open-pit coal mine dump, comprising a mounting tube (1), characterized in that: A lifting cylinder (2) is slidably mounted inside the mounting cylinder (1), one end of the lifting cylinder (2) passes through the mounting cylinder (1) and is mounted with a bottom plate (10), a drill bit (11) is rotatably mounted on the side of the bottom plate (10) away from the mounting cylinder (1), mounting grooves (5) are provided on both sides of the outer wall of the mounting cylinder (1) in the length direction, a first rotating plate (7) and a second rotating plate (8) are respectively mounted on the two ends of the mounting groove (5), the first rotating plate (7) and the second rotating plate (8) are rotatably connected to each other at one end close to the opposite surface, a second electric rotating shaft (34) is rotatably mounted on the side of the first rotating plate (7) and the second rotating plate (8) away from the mounting cylinder (1), a rotating wheel (9) is mounted on the outer wall of the second electric rotating shaft (34), and a suction cup is provided on the side of the rotating wheel (9) away from the mounting cylinder (1); The first rotating plate (7) and the second rotating plate (8) are each provided with a fixing hole (33) on one end side surface close to the opposite surface, and guide grooves (6) are each provided on the inner walls on both sides of the mounting groove (5) in the length direction, and a first support rod (18) is rotatably mounted on one end of the first rotating plate (7) away from the fixing hole (33), and the two ends of the first support rod (18) are respectively slidably mounted inside the two guide grooves (6), and a second support rod (19) is rotatably mounted on one end of the second rotating plate (8) away from the fixing hole (33), and the two ends of the second support rod (19) are respectively mounted on the inner walls on both sides of the mounting groove (5); An annular groove (22) is provided on the outer wall of the lifting cylinder (2), an annular rubber airbag (23) is provided on the inner wall of the end of the groove (22) close to the mounting cylinder (1), a scraper (24) is installed inside the groove (22) at the end of the rubber airbag (23) away from the mounting cylinder (1), and a chamfer (25) is provided on the corner of the end of the outer wall of the scraper (24) away from the rubber airbag (23); A plurality of feed holes (29) are provided on the inner wall of the groove (22) at one end away from the rubber airbag (23); a through hole (26) is provided on the outer wall of the lifting cylinder (2) at one end away from the mounting cylinder (1); a baffle (13) is installed on the inner wall of the lifting cylinder (2); a filter cylinder (15) is installed on the side of the baffle (13) away from the mounting cylinder (1); and the feed holes (29) are located on the side of the filter cylinder (15); A connecting plate (31) is installed at one end of the filter cylinder (15) away from the baffle (13); the outer wall of the connecting plate (31) is installed on the inner wall of the lifting cylinder (2); the connecting plate (31) and the baffle (13) are respectively located inside the lifting cylinder (2) at both ends of the feed hole (29); A collecting box (12) is placed at one end of the connecting plate (31) away from the filter cartridge (15); one end of the collecting box (12) away from the connecting plate (31) abuts against a side surface of the bottom plate (10); a conveying hole (32) is provided on the side surface of the connecting plate (31); the conveying hole (32) penetrates the connecting plate (31) and the filter cartridge (15); The through hole (26) is located on the side of the collecting box (12), and an arc-shaped storage groove (35) is provided on the inner wall of one side of the through hole (26). An arc-shaped sliding plate (27) is slidably installed in the storage groove (35), one end of the sliding plate (27) penetrates into the interior of the through hole (26), and a fixing strip (30) is installed on the side of one end of the sliding plate (27) located inside the through hole (26) in the length direction, and a discharge hole (4) matching the through hole (26) is provided on the outer wall of the mounting cylinder (1).

2. The device for fine soil sampling in an open-pit coal mine dump according to claim 1, characterized in that: A first electric rotating shaft (28) is rotatably mounted on a side of the bottom plate (10) away from the lifting cylinder (2); a drill bit (11) is mounted on an outer wall of the first electric rotating shaft (28); an end of the drill bit (11) close to the lifting cylinder (2) abuts against the bottom plate (10); an air pump (14) is mounted on an end of the baffle plate (13) away from the filter cylinder (15); and the air pump (14) and the rubber airbag (23) are connected to each other via an air pipe.

3. The device for fine soil sampling in an open-pit coal mine dump according to claim 1 is characterized in that: An electric telescopic rod (3) is installed at one end of the mounting cylinder (1) away from the lifting cylinder (2); one end of the transmission rod of the electric telescopic rod (3) passes through the interior of the mounting cylinder (1) and is installed at the end of the lifting cylinder (2) located inside the mounting cylinder (1); a connecting block (16) is installed on the side of the end of the electric telescopic rod (3) close to the mounting cylinder (1); a fixing bolt (17) is installed on the side of the connecting block (16); the fixing bolt (17) passes through the connecting block (16) and is threadedly installed on the top of the mounting cylinder (1); limiting grooves (21) are provided on the inner walls on both sides of the mounting cylinder (1) in the length direction; and sliding blocks (20) are installed on the outer walls on both sides of the end of the lifting cylinder (2) located inside the mounting cylinder (1); the sliding blocks (20) are slidably installed inside the limiting grooves (21).

4. A method for using the device for fine soil sampling in an open-pit coal mine dump as claimed in any one of claims 1 to 3, the method comprising the following steps: Step 1: The second electric rotating shaft (34) drives the rotating wheel (9) to rotate on the ground, and drives the installation tube (1) to move. When the installation tube (1) moves to the specified position, the electric telescopic rod (3) and the drill bit (11) are installed, and the installation tube (1) is erected on the ground, so that the end of the installation tube (1) close to the drill bit (11) is in contact with the ground, and the first rotating plate (7) and the second rotating plate (8) on the same side are folded, so that the rotating wheel (9) on the second rotating plate (8) is adsorbed on the ground through the suction cup, and the fixing bolt passes through the fixing holes (33) on the first rotating plate (7) and the second rotating plate (8) and is inserted into the ground; Step 2: The staff places the collection box (12) inside the lifting cylinder (2) through the discharge hole (4) and the through hole (26), and pulls the sliding plate (27) through the fixing bar (30) to protect the through hole (26). The air pump (14) inflates the rubber airbag (23) so that the rubber airbag (23) drives the scraper (24) to cover the feed hole (29). The electric telescopic rod (3) drives the lifting cylinder (2) to press downward toward the ground, and at the same time, the drill bit (11) drills a hole in the ground. The electric telescopic rod (3) and the drill bit (11) cooperate with each other to drive the lifting cylinder (2) to move to a designated position on the ground. Step 3: The air pump (14) extracts the gas inside the rubber airbag (23), so that the scraper (24) moves to the top of the feed hole (29). When the lifting cylinder (2) moves downward, the scraper (24) can lightly scrape the soil on the surface of the inner wall of the hole drilled by the drill bit (11), so that the soil falls into the inside of the lifting cylinder (2) through the groove (22); Step 4: After the amount of soil inside the lifting cylinder (2) gradually increases, the drill bit (11) rotates to cause the lifting cylinder (2) to vibrate slightly, and small particles of soil enter the interior of the filter cylinder (15), while the fine stones are located between the inner wall of the lifting cylinder (2) and the filter cylinder (15), and the soil inside the filter cylinder (15) enters the interior of the collection box (12) through the conveying hole (32); Step 5: The staff drives the lifting cylinder (2) to move into the interior of the installation cylinder (1) through the electric telescopic rod (3), pulls the sliding plate (27) through the discharge hole (4) to move, and takes out the collection box (12). When cleaning the pebbles inside the lifting cylinder (2), one end of the lifting cylinder (2) is moved out of the installation cylinder (1), and the lifting cylinder (2) and the installation cylinder (1) are placed horizontally on the ground. After shaking the lifting cylinder (2), the pebbles inside the lifting cylinder (2) can be moved out through the feed hole (29).

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