Soil sampling equipment for coal mine geological survey

Abstract

The invention discloses a soil sampling device for coal mine geological survey, which relates to the technical field of coal mine geological survey, and comprises a motor and a sampling component, wherein the output end of the motor is fixedly connected with a soil drilling shaft, the sampling component is installed in the soil drilling shaft, and the sampling component comprises a sampling barrel installed in the soil drilling shaft, a sealing sheet slidably connected with the sampling barrel is installed at the front end of the sampling barrel, the sampling component samples soil at a specified depth through the sampling barrel, and seals the sampling barrel with the sealing sheet, and the invention seals the end of the sampling barrel by arranging a sealing sheet at the end of the sampling barrel, thereby avoiding loose soil from entering the sampling barrel during the sampling process, and does not affect the normal sampling of the sampling barrel, thereby solving the problem in the prior art that loose soil will fall into the sampling barrel during the sampling process, thereby affecting the final detection result.

Description

Technical Field

[0001] The invention relates to the technical field of coal mine geological exploration, in particular to soil sampling equipment for coal mine geological exploration. Background Art

[0002] Coal mines are areas where humans exploit coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, people generally choose to dig tunnels underground to mine coal. This is an underground coal mine. When the coal seam is very close to the surface, people generally choose to directly peel off the surface soil layer to mine coal. This is an open-pit coal mine. The vast majority of coal mines in my country are underground coal mines.

[0003] At present, coal miners need to survey the geology of the coal mines during the mining process. The geological survey is generally carried out by sampling the local soil and then analyzing the sampled soil through professional analytical instruments. Therefore, in the process of geological survey of coal mines, it is necessary to sample the local soil through soil sampling equipment, and soil sampling is generally to take soil of appropriate depth for sampling and analysis. In the prior art, sampling of appropriate depth is generally carried out by drilling first and then sampling, that is, drilling a hole to an appropriate depth through a puncher, and then extending the sampling equipment into the bottom of the hole to take out the soil sample of the specified depth. However, during the exploration of the sampling equipment, a small amount of loose soil in the hole will fall into the sampling cylinder of the sampling equipment, so when the soil sample is analyzed later, the analysis result will be inaccurate. To this end, we propose a soil sampling equipment for geological survey of coal mines. Summary of the invention

[0004] The purpose of the present invention is to provide a soil sampling device for geological survey of coal mines to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a soil sampling device for geological survey of coal mines, comprising a motor, a sampling assembly and a pushing assembly, wherein the output end of the motor is fixedly connected to a soil drilling shaft, the sampling assembly is installed in the soil drilling shaft, and the sampling assembly comprises a sampling barrel installed in the soil drilling shaft, a sealing sheet slidably connected to the sampling barrel is installed at the front end of the sampling barrel, the sampling assembly samples soil at a specified depth through the sampling barrel, and the sampling barrel is sealed with the sealing sheet; the pushing assembly is installed in the soil drilling shaft, and the pushing assembly comprises a pushing rod fixedly connected to the sealing sheet, the pushing rod is slidably connected to the sampling barrel, and the pushing assembly pushes the soil sample in the sampling barrel out through the sliding of the pushing rod.

[0006] Preferably, the sampling assembly includes a connecting column fixedly connected to the sampling tube, the connecting column is slidably connected to the drilling shaft, and the connecting column is slidably connected to the push rod, the top end of the connecting column is fixedly connected to a sliding tube sleeved on the outside of the pushing rod, the outer side of the sliding tube is fixedly connected to a reciprocating threaded column, the reciprocating threaded column is threadedly connected to a threaded block, the threaded block is fixedly connected to a fixing plate fixedly connected to the drilling shaft, and a sliding groove is also provided on the sliding tube, a sliding block is slidably connected in the sliding groove, a sleeve is fixedly connected to the sliding block, and a rotating part for driving the sleeve to rotate is installed at the top end of the sleeve.

[0007] Preferably, the rotating member includes a rotating plate fixedly connected to the casing, a track fixedly connected to the drilling shaft is rotatably connected to the rotating plate, and an internal gear ring is fixedly connected to the rotating plate, a first flat gear ring is meshed on the inner side of the internal gear ring, a connecting shaft is fixedly connected to the axis of the first flat gear ring, a fixing seat fixedly connected to the drilling shaft is rotatably connected to the outer side surface of the connecting shaft, and a second flat gear is connected to the top end of the connecting shaft, and a driving member is connected to the second flat gear.

[0008] Preferably, the driving member includes a motor fixed in the drilling shaft, the output end of the motor is fixedly connected to a coupling, one end of the coupling is fixedly connected to a driving shaft, the driving shaft is connected to a transmission member connected to the second flat gear, and the driving shaft is also connected to the pushing assembly.

[0009] Preferably, the transmission member includes a ratchet gear fixedly connected to the driving shaft, one end of the ratchet gear is rotatably connected to a rotating plate, the outer side surface of the rotating plate is fixedly connected to an external gear ring meshing with the second flat gear, and a pawl is meshed on the outer side of the ratchet gear, the pawl is fixedly connected to a movable shaft rotatably connected to the rotating plate, and the movable shaft is fixedly connected to a torsion spring fixedly connected to the rotating plate.

[0010] Preferably, the pushing assembly includes a pushing block fixedly connected to the pushing rod, the outer side surface of the pushing block is slidably connected to a fixed sleeve, the fixed sleeve is fixedly connected to a fixed frame fixedly connected to the drilling shaft, and the sliding sleeve is also slidably connected to a movable block, and the movable block is connected to a movable part for driving the movable block to move.

[0011] Preferably, the moving member includes a moving block fixedly connected to the movable block, a reciprocating screw is threadedly connected to the moving block, the reciprocating screw is slidably connected to the pushing block and the pushing rod, and the reciprocating screw is fixedly connected to a rotating shaft at one end away from the pushing rod, and the end of the rotating shaft is connected to a connecting member.

[0012] Preferably, the connecting member includes a rotating disk fixedly connected to the rotating shaft, a sliding sleeve fixedly connected to the rotating disk, a first spring fixedly connected inside the sliding sleeve, a first extrusion block fixedly connected to the top of the first spring, a second extrusion block installed at one end of the first extrusion block, a rotating block fixedly connected to the driving shaft fixedly connected to the second extrusion block, and one side of the first extrusion block and the second extrusion block is arranged in an arc shape.

[0013] Preferably, a second spring fixedly connected to the sealing sheet is fixedly connected inside the sampling tube, and a serrated ring is fixedly connected to the end of the sampling tube.

[0014] Preferably, a handle is fixedly connected to the motor, and an anti-slip groove is provided on the handle.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention provides a soil sampling device for coal mine geological survey. In the initial state, the sampling tube is located inside the drilling shaft, and a sealing sheet is installed at the end position of the sampling tube. Therefore, in the process of sampling soil at a specified depth, the end of the sampling tube is sealed by the action of the sealing sheet to prevent loose soil from entering the sampling tube and affecting the result of soil detection during the sampling process. In the sampling process, the sampling tube can be freely rotated and retracted after reaching the specified position through the action of the reciprocating threaded column, so that the sampling tube is inserted into the soil for sampling. In the sampling process, the sealing sheet gradually moves relative to the sampling tube through the squeezing of the soil, so that the soil enters the sampling tube to complete the sampling work. Therefore, the end of the sampling tube is sealed by arranging a sealing sheet at the end of the sampling tube, thereby preventing loose soil from entering the sampling tube during the sampling process, and at the same time does not affect the normal sampling of the sampling tube. Therefore, the problem in the prior art that loose soil in the sampling tube falls into the sampling tube and affects the final detection result during the sampling process is solved.

[0017] 2. The present invention provides a soil sampling device for geological survey of coal mines. After sampling is completed, the operation of the pushing component causes the push rod to slide, thereby driving the sealing plate to slide through the action of the pushing rod, and then causing the sealing plate to push the soil inside the sampling tube, thereby facilitating the packaging and testing of the sampled soil, and the sliding of the sealing plate driven by the pushing component causes the sealing plate to reset after pushing out the soil, thereby sealing the end of the sampling tube again, thereby facilitating the next sampling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the soil drilling shaft of the present invention;

[0020] Figure 3 This is a schematic diagram of the linkage structure of the sampling component and the pushing component of the present invention;

[0021] Figure 4 It is a schematic diagram of the connection structure between the sliding tube, the sleeve and the push rod of the present invention;

[0022] Figure 5 It is a schematic diagram of a partial cross-section front view of the structure of the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the rotating part of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the driving member of the present invention;

[0025] Figure 8 For the present invention Figure 7 Schematic diagram of the structure of the middle A area;

[0026] Fig. 9 This is a schematic diagram of the structure of the driving component of the present invention;

[0027] Fig.10 For the present invention Fig. 9 Schematic diagram of the structure of the middle B area;

[0028] Fig.11 It is a schematic diagram of the structure of the moving part of the present invention;

[0029] Fig.12 For the present invention Fig.11 Schematic diagram of the structure of the middle C area.

[0030] In the figure: 1-motor; 2-drilling shaft; 3-sampling assembly; 4-sampling tube; 5-sealing sheet; 6-pushing assembly; 7-pushing rod; 8-connecting column; 9-sliding tube; 10-reciprocating threaded column; 11-threaded block; 12-fixed plate; 13-casing; 14-sliding block; 15-slideway; 16-rotating member; 17-rotating plate; 18-track; 19-inner gear ring; 20-first flat gear ring; 21-connecting shaft; 22-fixed seat; 23-second flat gear; 24-driving member; 25-motor; 26-coupling; 27- Driving shaft; 28-transmission member; 29-ratchet gear; 30-rotating plate; 31-external gear ring; 32-ratchet pawl; 33-movable shaft; 34-torsion spring; 35-pushing block; 36-fixed sleeve; 37-fixed frame; 38-movable block; 39-moving member; 40-moving block; 41-reciprocating screw rod; 42-rotating shaft; 43-connecting member; 44-rotating disk; 45-sliding sleeve; 46-first spring; 47-first extrusion block; 48-second extrusion block; 49-rotating block; 50-second spring; 51-serrated ring; 52-handle. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-12 The present invention provides a technical solution: a soil sampling device for geological exploration of coal mines, comprising a motor 1, a sampling assembly 3 and a pushing assembly 6, wherein the output end of the motor 1 is fixedly connected to a soil drilling shaft 2, a handle 52 is fixedly connected to the motor 1, and an anti-slip groove is provided on the handle 52, the sampling assembly 3 is installed in the soil drilling shaft 2, and the sampling assembly 3 comprises a sampling barrel 4 installed in the soil drilling shaft 2, a second spring 50 fixedly connected to a sealing sheet 5 is fixedly connected in the sampling barrel 4, a sawtooth ring 51 is fixedly connected to the end of the sampling barrel 4, a sealing sheet 5 slidably connected to the sampling barrel 4 is installed at the front end of the sampling barrel 4, the sampling assembly 3 samples soil at a specified depth through the sampling barrel 4, and seals the sampling barrel 4 in cooperation with the sealing sheet 5; the pushing assembly 6 is installed in the soil drilling shaft 2, and the pushing assembly 6 comprises a pushing rod 7 fixedly connected to the sealing sheet 5, the pushing rod 7 is slidably connected to the sampling barrel 4, and the pushing assembly 6 pushes out the soil sample in the sampling barrel 4 through the sliding of the pushing rod 7.

[0033] After the sampling is completed, the sealing piece 5 will be pulled out and the end of the sampling tube 4 will be pulled out.

[0034] In this solution, a handle 52 is installed on the motor 1, so that the handle 52 can be held to facilitate drilling operations, and the anti-slip groove is provided to increase the friction between the handle 52 and the hand, thereby improving the stability of holding.

[0035] In this solution, a serrated ring 51 is installed at the end of the sampling tube 4. Therefore, when the sampling tube 4 is extended and rotated, the rotation of the serrated ring 51 facilitates the sampling tube 4 to be inserted into the soil for sampling.

[0036] The sampling assembly 3 includes a connecting column 8 fixedly connected to the sampling tube 4, the connecting column 8 is slidably connected to the drilling shaft 2, and the connecting column 8 is slidably connected to the pushing rod 7. The top of the connecting column 8 is fixedly connected to a sliding tube 9 sleeved on the outside of the pushing rod 7, and the outer side of the sliding tube 9 is fixedly connected to a reciprocating threaded column 10, and a threaded block 11 is threadedly connected to the reciprocating threaded column 10, and a fixing plate 12 fixedly connected to the drilling shaft 2 is fixedly connected to the threaded block 11, and a sliding groove 15 is also provided on the sliding tube 9, and a sliding block 14 is slidably connected in the sliding groove 15, and a sleeve 13 is fixedly connected to the sliding block 14, and a rotating member 16 for driving the sleeve 13 to rotate is installed at the top of the sleeve 13. The rotating member 16 includes a rotating plate 17 fixedly connected to the sleeve 13, a track 18 fixedly connected to the soil boring shaft 2 is rotatably connected to the rotating plate 17, and an inner gear ring 19 is fixedly connected to the rotating plate 17, a first flat gear ring 20 is meshed on the inner side of the inner gear ring 19, a connecting shaft 21 is fixedly connected to the axis of the first flat gear ring 20, a fixing seat 22 fixedly connected to the soil boring shaft 2 is rotatably connected to the outer side of the connecting shaft 21, and a second flat gear 23 is connected to the top of the connecting shaft 21, and a driving member 24 is connected to the second flat gear 23. The driving member 24 includes a motor 25 fixed in the soil boring shaft 2, a coupling 26 is fixedly connected to the output end of the motor 25, a driving shaft 27 is fixedly connected to one end of the coupling 26, a transmission member 28 connected to the second flat gear 23 is connected to the driving shaft 27, and the driving shaft 27 is also connected to the pushing assembly 6. The transmission member 28 includes a ratchet gear 29 fixedly connected to the drive shaft 27, one end of the ratchet gear 29 is rotatably connected to a rotating plate 30, the outer side surface of the rotating plate 30 is fixedly connected to an outer gear ring 31 meshing with the second flat gear 23, and a pawl 32 is meshed on the outer side of the ratchet gear 29, a movable shaft 33 rotatably connected to the rotating plate 30 is fixedly connected to the pawl 32, and a torsion spring 34 fixedly connected to the rotating plate 30 is fixedly connected to the movable shaft 33.

[0037] In this solution, when sampling is performed, the motor 25 is started, and then the motor 25 drives the driving shaft 27 to rotate through the coupling 26, thereby driving the ratchet gear 29 to rotate, and then the rotating plate 30 is driven to rotate through the action of the ratchet 32, driving the outer gear ring 31 to rotate, the rotation of the outer gear ring 31 drives the second flat gear 23 to rotate, the rotation of the second flat gear 23 drives the connecting shaft 21 to rotate, the rotation of the connecting shaft 21 drives the first flat gear ring 20 to rotate, the rotation of the first flat gear ring 20 drives the inner gear ring 19 meshing therewith to rotate, and then drives the rotating plate 17 to rotate, so the rotation of the rotating plate 17 drives the sleeve 13 to rotate, because the sleeve 13 and the sliding tube 9 are slidably connected through the sliding block 14 and the sliding groove 15, so in the sleeve 1 3 will drive the sliding tube 9 to rotate, and then drive the connecting column 8 and the sampling tube 4 to rotate, and finally drive the serrated ring 51 to rotate. When the sliding tube 9 rotates, since the outer side of the sliding tube 9 is fixedly connected with the reciprocating threaded column 10, when the sliding tube 9 rotates, the reciprocating threaded column 10 will also be driven to rotate. The reciprocating threaded column 10 is threadedly connected with a thread block 11, and the thread block 11 is fixedly connected to the soil drilling shaft 2 through a fixing plate 12. Therefore, when the reciprocating threaded column 10 rotates, it will move itself, and then drive the sliding tube 9 to move. Therefore, the movement of the sliding tube 9 drives the connecting column 8 and the sampling tube 4 to move, so that when the motor 25 starts sampling, the sampling tube 4 can be rotated and extended, so that it is convenient for the sampling tube 4 to be inserted into the soil for sampling.

[0038] In this solution, as the motor 25 continuously rotates, the reciprocating threaded column 10 will continue to rotate, so that the reciprocating threaded column 10 moves back and forth through the cooperation with the threaded block 11, thereby driving the sliding tube 9 to move back and forth, and then the sampling tube 4 moves back and forth. After the sampling tube 4 is extended to take a sample, the continuous rotation of the motor 25 causes the sampling tube 4 to move in the opposite direction and shrink back into the drilling shaft 2. Then, the drilling shaft 2 is pulled out, and the taken out soil is pushed out through the action of the pushing component 6 for packaging and testing.

[0039] In this solution, during the sampling process, the sampling tube 4 extends but the position of the sealing sheet 5 does not change. After the sampling is completed, the sampling tube 4 moves in the opposite direction. The sampling tube 4 and the sealing sheet 5 move synchronously due to the squeezing of the soil. Therefore, the movement of the sealing sheet 5 will drive the push rod 7 to move, thereby driving the push block 35 to move. After the sampling tube 4 is reset and enters the interior of the soil drilling shaft 2, the push block 35 is now in contact with the movable block 38.

[0040] The pushing assembly 6 includes a pushing block 35 fixedly connected to the pushing rod 7, a fixed sleeve 36 is slidably connected to the outer side of the pushing block 35, a fixed frame 37 fixedly connected to the soil drilling shaft 2 is fixedly connected to the fixed sleeve 36, and a movable block 38 is also slidably connected in the sliding sleeve 45, and a moving member 39 for driving the movable block 38 to move is connected to the movable block 38. The moving member 39 includes a moving block 40 fixedly connected to the movable block 38, a reciprocating screw 41 is threadedly connected to the moving block 40, the reciprocating screw 41 is slidably connected to the pushing block 35 and the pushing rod 7, and the reciprocating screw 41 is fixedly connected to a rotating shaft 42 at one end away from the pushing rod 7, and a connecting member 43 is connected to the end of the rotating shaft 42. The connecting member 43 includes a rotating disk 44 fixedly connected to the rotating shaft 42, a sliding sleeve 45 fixedly connected to the rotating disk 44, a first spring 46 fixedly connected inside the sliding sleeve 45, a first extrusion block 47 fixedly connected to the top end of the first spring 46, a second extrusion block 48 is installed at one end of the first extrusion block 47, a rotating block 49 fixedly connected to the driving shaft 27 is fixedly connected to the second extrusion block 48, and one side of the first extrusion block 47 and the second extrusion block 48 is arranged in an arc shape.

[0041] In this solution, after the sampling is completed and the soil drilling shaft 2 is pulled out, the motor 25 is reversed at this time. Due to the reverse rotation of the motor 25, the drive shaft 27 is reversed, so the ratchet gear 29 is reversed. At this time, the ratchet gear 29 and the pawl 32 will not cooperate to rotate the rotating piece 30, and then the second flat gear 23 will not rotate. However, the reverse rotation of the drive shaft 27 will drive the rotating block 49 to rotate. At this time, the rotating block 49 will drive the second extrusion block 48 to rotate. In this state, the right-angled sides of the first extrusion block 47 and the second extrusion block 48 are fitted, and then when the second extrusion block 48 rotates, it will drive the first extrusion block 47 to rotate, so through the first extrusion The block 47 drives the rotating disk 44 to rotate, and then drives the rotating shaft 42 to rotate. Therefore, the rotation of the rotating shaft 42 drives the reciprocating screw 41 to rotate, thereby driving the moving block 40 to reciprocate, and thus driving the movable block 38 to reciprocate through the moving block 40. Since the movable block 38 is in contact with the pushing block 35 at this time, the pushing block 35 will be driven to move when the movable block 38 moves, thereby driving the pushing rod 7 to move, and then driving the sealing plate 5 to move, so that the soil inside the sampling tube 4 is pushed out by the movement of the sealing plate 5. Under the continuous rotation of the reciprocating screw 41, the moving block 40 will drive the movable block 38 to move in the opposite direction and reset.

[0042] In this solution, during the sampling process, the motor 25 is in a forward rotation state, so the drive shaft 27 drives the rotating block 49 to rotate forward. During this process, the arc edges of the first extrusion block 47 and the second extrusion block 48 are in contact and fit, so the second extrusion block 48 will squeeze the first extrusion block 47, causing the first extrusion block 47 to compress the first spring 46 and contract. At this time, the second extrusion block 48 will be separated from the first extrusion block 47, and the second extrusion block 48 will not push the first extrusion block 47 to rotate when following the rotating block 49 to rotate. During the sampling process, the rotating disk 44 will not drive the rotating shaft 42 to rotate, and the reciprocating screw 41 will not rotate during this process, thereby not affecting the sampling process.

[0043] Working principle: In the initial state, the sealing piece 5 is located at the end of the sampling tube 4 to seal the sampling tube 4. During the sampling process, the drilling shaft 2 is driven by the motor 1 to rotate, and then the location of the coal mine is drilled for sampling. It is particularly noted that there is friction between the sealing piece 5 and the sampling tube 4, and the sealing piece 5 will not move due to loose soil during the drilling process, and a second spring 50 is installed between the sealing piece 5 and the sampling tube 4, which further prevents the sealing piece 5 from sliding during the drilling process. After the drilling depth reaches the specified depth, the motor 25 is started, and the motor 25 will drive the drive shaft 27 to rotate through the coupling 26. During this process, the motor 25 rotates forward to drive the drive shaft 27 to rotate forward. The forward rotation of the driving shaft 27 will drive the ratchet gear 29 to rotate forward. At this time, the ratchet gear 29 will mesh with the pawl 32 for transmission. Therefore, in this state, the rotation of the ratchet gear 29 will drive the pawl 32 to rotate, and the rotation of the pawl 32 will drive the rotating plate 30 to rotate, thereby driving the outer gear ring 31 to rotate, and then driving the second flat gear 23 to rotate, thereby driving the connecting shaft 21 to rotate, and then the first flat gear ring 20 is driven to rotate through the rotation of the connecting shaft 21, and then the inner gear ring 19 meshing therewith is driven to rotate, and then the rotating plate 17 is driven to rotate, and therefore the sleeve 13 is driven to rotate through the rotation of the rotating plate 17. Since the sleeve 13 and the sliding tube 9 are slidably connected by the sliding block 14 and the sliding groove 15, the sleeve 13 will be driven when it rotates. The sliding tube 9 is driven to rotate, thereby driving the connecting column 8 and the sampling tube 4 to rotate, and then driving the serrated ring 51 to rotate. At the same time as the sliding tube 9 rotates, since the outer side of the sliding tube 9 is fixedly connected with a reciprocating threaded column 10, when the sliding tube 9 rotates, the reciprocating threaded column 10 will also be driven to rotate, and the reciprocating threaded column 10 is threadedly connected with a threaded block 11, and the threaded block 11 is fixedly connected to the drilling shaft 2 through a fixing plate 12. Therefore, when the reciprocating threaded column 10 rotates, it will move itself, thereby driving the sliding tube 9 to move. Therefore, the movement of the sliding tube 9 drives the connecting column 8 and the sampling tube 4 to move, so that when the motor 25 starts sampling, the sampling tube 4 can be rotated and extended, so that it is convenient for the sampling tube 4 to be inserted into the soil for sampling. When the motor 25 continues to rotate During the process, the reciprocating threaded column 10 will continue to rotate, so that the reciprocating threaded column 10 will move back and forth through the cooperation with the threaded block 11, thereby driving the sliding tube 9 to move back and forth, thereby causing the sampling tube 4 to move back and forth. After the sampling tube 4 is extended for sampling, the sampling tube 4 will move in the opposite direction and shrink back into the drilling shaft 2 due to the continuous rotation of the motor 25, and then the drilling shaft 2 will be pulled out. At this time, the sampling is completed. It is worth noting that: in this process, the forward rotation of the drive shaft 27 will drive the rotating block 49 to rotate forward. In this process, the arcuate edges of the first extrusion block 47 and the second extrusion block 48 are in contact and fit, so the second extrusion block 48 will squeeze the first extrusion block 47, causing the first extrusion block 47 to compress the first spring 46 and shrink.Therefore, the second extrusion block 48 will not drive the first extrusion block 47 to rotate, and during the sampling process, the rotating disk 44 will not drive the rotating shaft 42 to rotate, and the reciprocating screw rod 41 will not rotate during this process, thereby not affecting the sampling process.

[0044] During the sampling process, the sampling tube 4 extends but the position of the sealing sheet 5 does not change. After the sampling is completed and the sampling tube 4 moves in the opposite direction, the sampling tube 4 and the sealing sheet 5 move synchronously due to the squeezing of the soil. Therefore, the movement of the sealing sheet 5 will drive the push rod 7 to move, thereby driving the push block 35 to move. After the sampling tube 4 is reset and enters the inside of the drilling shaft 2, the push block 35 is now in contact with the movable block 38.

[0045] After sampling is completed and the drilling shaft 2 is pulled out, the motor 25 is controlled to reverse. When the motor 25 reverses, the drive shaft 27 will be driven to reverse. During this process, the drive shaft 27 will drive the ratchet gear 29 to reverse. At this time, the ratchet gear 29 will disengage from the pawl 32, so it will not drive the pawl 32 to rotate, and then the rotating piece 30 will not rotate at this time, so the movement of the sampling tube 4 will lose power, thereby ensuring that the sampling tube 4 will not be displaced during this process, and because the reversal of the drive shaft 27 drives the rotating block 49 to reverse, the reversal of the rotating block 49 drives the second extrusion block 48 to reverse, and then during this process, the second extrusion block 48 is in contact with the right-angle side of the first extrusion block 47. At this time, the second extrusion block 48 cannot squeeze the first extrusion block 47, so the first extrusion block 47 will not shrink. At this time, the rotation of the second extrusion block 48 will drive The first extrusion block 47 rotates, and thus the rotating disk 44 is driven to rotate through the action of the first extrusion block 47, and then the rotating shaft 42 is driven to rotate, thereby driving the reciprocating screw rod 41 to rotate, and then driving the moving block 40 to move, thereby driving the movable block 38 fixedly connected thereto to move, and since the movable block 38 is in contact with the pushing block 35, when the movable block 38 moves, it will drive the pushing block 35 to move, thereby driving the pushing rod 7 to move, and then driving the sealing plate 5 to move, and the soil inside the sampling tube 4 is pushed out by the movement of the sealing plate 5, and the sealing plate 5 will seal the sampling tube 4 again after pushing the soil out, and when the reciprocating screw rod 41 continues to rotate, the reciprocating screw rod 41 will drive the moving block 40 to reset, and then drive the movable block 38 to reset through the moving block 40, so after one sampling is completed, all parts will return to their original positions and wait for the next sampling process.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil sampling device for coal mine geological survey, comprising: A motor (1), wherein an output end of the motor (1) is fixedly connected to a soil drilling shaft (2); It is characterized by further comprising: A sampling assembly (3), the sampling assembly (3) being installed in the soil drilling shaft (2), and the sampling assembly (3) comprising a sampling barrel (4) installed in the soil drilling shaft (2), a sealing sheet (5) being installed at the front end of the sampling barrel (4) and being slidably connected to the sampling barrel (4), the sampling assembly (3) sampling soil at a specified depth through the sampling barrel (4), and cooperating with the sealing sheet (5) to seal the sampling barrel (4); A pushing assembly (6), the pushing assembly (6) being installed in the soil drilling shaft (2), and the pushing assembly (6) comprising a pushing rod (7) fixedly connected to the sealing sheet (5), the pushing rod (7) being slidably connected to the sampling tube (4), the pushing assembly (6) pushing out the soil sample in the sampling tube (4) by sliding the pushing rod (7); The sampling assembly (3) comprises a connecting column (8) fixedly connected to the sampling tube (4), the connecting column (8) being slidably connected to the soil drilling shaft (2), and the connecting column (8) being slidably connected to the push rod (7), the top end of the connecting column (8) being fixedly connected to a sliding tube (9) sleeved on the outside of the push rod (7), the outer side of the sliding tube (9) being fixedly connected to a reciprocating threaded column (10), the reciprocating threaded column (10) being threadedly connected to a threaded block (11), the threaded block (11) being fixedly connected to a fixing plate (12) fixedly connected to the soil drilling shaft (2), and the sliding tube (9) being further provided with a sliding groove (15), the outer side of the sliding tube (9) being slidably connected to a sleeve (13), the interior of the sleeve (13) being fixedly connected to a sliding block (14) slidably connected to the sliding groove (15), and the top end of the sleeve (13) being provided with a rotating member (16) for driving the sleeve (13) to rotate.

2. The soil sampling device for coal mine geological survey according to claim 1 is characterized in that: The rotating member (16) comprises a rotating plate (17) fixedly connected to the sleeve (13); a track (18) fixedly connected to the soil boring shaft (2) is rotatably connected to the rotating plate (17); an inner gear ring (19) is fixedly connected to the rotating plate (17); a first flat gear ring (20) is meshed on the inner side of the inner gear ring (19); a connecting shaft (21) is fixedly connected to the axis of the first flat gear ring (20); a fixing seat (22) fixedly connected to the soil boring shaft (2) is rotatably connected to the outer side surface of the connecting shaft (21); a second flat gear (23) is connected to the top end of the connecting shaft (21); and a driving member (24) is connected to the second flat gear (23).

3. The soil sampling equipment for coal mine geological survey according to claim 2 is characterized in that: The driving member (24) comprises a motor (25) fixed in the soil boring shaft (2); the output end of the motor (25) is fixedly connected to a coupling (26); one end of the coupling (26) is fixedly connected to a driving shaft (27); the driving shaft (27) is connected to a transmission member (28) connected to the second spur gear (23); and the driving shaft (27) is also connected to the pushing assembly (6).

4. The soil sampling equipment for coal mine geological survey according to claim 3 is characterized in that: The transmission member (28) comprises a ratchet gear (29) fixedly connected to the drive shaft (27); one end of the ratchet gear (29) is rotatably connected to a rotating plate (30); an outer side surface of the rotating plate (30) is fixedly connected to an outer gear ring (31) meshingly connected to the second flat gear (23); a pawl (32) is meshed on the outer side of the ratchet gear (29); a movable shaft (33) rotatably connected to the rotating plate (30) is fixedly connected to the pawl (32); and a torsion spring (34) fixedly connected to the rotating plate (30) is fixedly connected to the movable shaft (33).

5. The soil sampling equipment for coal mine geological survey according to claim 4 is characterized in that: The pushing assembly (6) comprises a pushing block (35) fixedly connected to the pushing rod (7); a fixing sleeve (36) is slidably connected to the outer side surface of the pushing block (35); a fixing frame (37) fixedly connected to the boring shaft (2) is fixedly connected to the fixing sleeve (36); a movable block (38) is slidably connected inside the fixing sleeve (36); and a movable member (39) for driving the movable block (38) to move is connected to the movable block (38).

6. The soil sampling device for coal mine geological survey according to claim 5, characterized in that: The moving member (39) comprises a moving block (40) fixedly connected to the movable block (38); a reciprocating screw (41) is threadedly connected to the moving block (40); the reciprocating screw (41) is slidably connected to the pushing block (35) and the pushing rod (7); and a rotating shaft (42) is fixedly connected to the end of the reciprocating screw (41) away from the pushing rod (7); and a connecting member (43) is connected to the end of the rotating shaft (42).

7. The soil sampling device for coal mine geological survey according to claim 6, characterized in that: The connecting member (43) comprises a rotating disk (44) fixedly connected to the rotating shaft (42); a sliding sleeve (45) is fixedly connected to the rotating disk (44); a first spring (46) is fixedly connected inside the sliding sleeve (45); a first extrusion block (47) is fixedly connected to the top end of the first spring (46); a second extrusion block (48) is mounted on one end of the first extrusion block (47); a rotating block (49) fixedly connected to the driving shaft (27) is fixedly connected to the second extrusion block (48); and opposite sides of the first extrusion block (47) and the second extrusion block (48) are both arranged in an arc shape.

8. The soil sampling equipment for coal mine geological survey according to claim 1, characterized in that: A second spring (50) fixedly connected to the sealing sheet (5) is fixedly connected inside the sampling cylinder (4), and a sawtooth ring (51) is fixedly connected to the end of the sampling cylinder (4).

9. The soil sampling equipment for coal mine geological survey according to claim 1, characterized in that: A handle (52) is fixedly connected to the motor (1), and an anti-slip groove is provided on the handle (52).

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