Geological sampling device for coal field geological exploration and use method

Abstract

The invention discloses a geological sampling device for coal field geological exploration and a use method, and mainly relates to the technical field of exploration sampling. Comprising a support and a movable frame arranged on the support in a sliding mode, a drill rod is rotationally connected to the movable frame, a driven wheel is connected to the end of the drill rod in a sliding mode, a plurality of fixing blocks are arranged on the side face of the driven wheel, the sampling pipe is arranged on the outer side of the drill rod in a sleeving mode, and a first vertical groove and a second vertical groove are formed in the sampling pipe. The first vertical groove extends to the outer side, the fixing block is in sliding contact with the first vertical groove, the second vertical groove and the transverse groove in sequence, a push plate in contact with the sampling pipe and the driven wheel is connected to the drill rod in a sliding mode, and a positioning groove in sliding contact with the drill rod is formed in the push plate. The device has the beneficial effects that the problem that the mounting and dismounting efficiency of the drill rod and the sampling pipe is low is solved, and the efficiency and effect of coal field exploration sampling are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of exploration sampling, and in particular to a geological sampling device for coalfield geological exploration and a use method thereof. BACKGROUND

[0002] Coalfield geological exploration is to explore and detect geology through various means and methods, determine suitable bearing layers, and coalfield geological exploration sampling is to obtain coalfield coal rock samples, analyze and study the chemical properties and physical properties of the coal rock samples, obtain the characteristics of the coal rock samples, and guide geological exploration and coalfield production work.

[0003] When sampling for coalfield geological exploration, the sampling pipe is first fixed on the drill rod by using bolts, the movable frame is moved downward on the support, and the sampling pipe is rotated by the motor, so that the sharp end of the end of the sampling pipe is rotated and inserted into the coal rock sample, and under the action of the mutual extrusion of the coal rock, the coal rock sample enters the sampling pipe, effectively sampling and collecting the coal rock sample.

[0004] However, the drill rod and the sampling pipe are generally connected by bolts at present, and a plurality of bolts need to be rotated before and after each exploration, so that the drill rod and the sampling pipe can be connected, and the time required for disassembly and installation is long, which affects the efficiency of exploration sampling to some extent, and meanwhile, the bolts are easy to be lost after the sampling pipe is disassembled from the drill rod, which will further affect the efficiency of exploration sampling. SUMMARY

[0005] The present application aims to provide a geological sampling device for coalfield geological exploration and a use method thereof, to solve the problem of low installation and disassembly efficiency of the drill rod and the sampling pipe, and to improve the efficiency and effect of coalfield exploration sampling.

[0006] To achieve the above-mentioned purpose, the following technical solutions are implemented: The utility model provides a geological sampling device for coalfield geological exploration, including support and movable frame which is slidably arranged on the support, the movable frame is rotatably connected with drill rod, the end of drill rod is slidably connected with driven wheel, the side of driven wheel is equipped with a plurality of fixed blocks, further including the sampling tube of sleeve setting in the outside of drill rod, first vertical groove and second vertical groove are equipped on sampling tube respectively, and the horizontal groove of the bottom of first vertical groove and second vertical groove is connected, first vertical groove extends to the outside, fixed blocks are in sliding contact with first vertical groove, second vertical groove and horizontal groove in turn, the push plate which is in sliding contact with sampling tube and driven wheel is slidably connected on drill rod, the push plate is equipped with the positioning groove of drill rod sliding contact, further including the sliding plate which is slidably arranged on drill rod, a plurality of second protruding blocks are equipped on the sliding plate, a plurality of fixed grooves are equipped on the end of sampling tube and are in sliding contact with second protruding blocks, first nut, second nut and third nut are equipped on drill rod respectively, fifth spring is equipped between the sliding plate and first nut, second nut and third nut are in contact with driven wheel and push plate respectively.

[0007] Further, the support includes a vertical plate and a leg, the movable frame is slidably arranged on one side of the vertical plate, a support wheel is rotatably connected to the other side of the vertical plate, the leg includes first and second support piers symmetrically arranged at the bottom of the vertical plate, tapered blocks are provided at the ends of the first and second support piers, and a handle is provided at the top of the vertical plate.

[0008] Further, an output shaft and a driven shaft are rotatably connected to the vertical plate, a first spiral bevel gear is provided on the output shaft, a second spiral bevel gear is provided on the driven shaft and engaged with the first spiral bevel gear, a first sprocket is provided on the driven shaft, a second sprocket is rotatably arranged on the vertical plate, and a chain is sleeved outside the first and second sprockets and connected to the movable frame. Further, a turntable is provided at the end of the output shaft, a power-assisted block is provided on the turntable, a sliding groove is provided on the power-assisted block, a sliding block is slidably connected to the sliding groove, a vertical column is provided on the sliding block, an output motor is provided on the vertical plate, a swing arm is provided at the movable end of the output motor, an inclined slot is slidably connected to the vertical column on the swing arm, and a first spring is provided between the sliding block and the power-assisted block.

[0009] Further, a third rotating shaft connected to the second sprocket is rotatably connected to the vertical plate, a limiting wheel is keyed to the third rotating shaft, a cam is provided on one side of the second sprocket, a plurality of first limiting grooves are provided on the cam, and a limiting block is slidably connected to the first limiting grooves on one side of the limiting wheel.

[0010] Further, one side of the limiting wheel is provided with a conical wheel, the side surface of the conical wheel is provided with a conical surface, the supporting leg is slidably connected with a release block, one end of the release block is provided with a groove, the two sides of the groove are respectively provided with a first inclined surface in contact with the conical surface, the other end of the release block is rotatably connected with a roller, the roller extends to the outside of the supporting leg, and the conical wheel is provided with a second spring between the supporting leg.

[0011] Further, the two sides of the vertical plate are rotatably connected with a plurality of supporting rods rotatably connected with the second supporting column, the first supporting column and the second supporting column are respectively rotatably connected with a first connecting rod and a second connecting rod, and a reverse U-shaped seat is arranged, the reverse U-shaped seat is provided with a fourth rotating shaft rotatably connected with the first connecting rod and the second connecting rod, the upper side of the first connecting rod and the second connecting rod is in contact with the reverse U-shaped seat, and the roller is located between the first supporting column and the second supporting column.

[0012] Further, the two sides of the reverse U-shaped seat are respectively provided with a limiting rod, one side of the end of the limiting rod is provided with a second inclined surface, the first connecting rod and the second connecting rod are respectively provided with a second limiting groove and a third limiting groove in contact with the second inclined surface, one end of the limiting rod is provided with a plurality of first protrusions, the reverse U-shaped seat is provided with a plurality of fourth limiting grooves in sliding contact with the first protrusions, the reverse U-shaped seat is provided with a plurality of L-shaped blocks, and the third spring is arranged between the L-shaped blocks and the first protrusions.

[0013] Further, the end of the limiting rod is provided with a first arc-shaped groove, the first connecting rod and the second connecting rod are respectively rotatably connected with a plurality of first connecting blocks and second connecting blocks, the end of the first connecting block is provided with a first arc-shaped block in sliding connection with the first arc-shaped groove, the fourth spring is arranged between the first connecting block and the first connecting rod, the end of the first connecting rod is provided with a second arc-shaped block, the two sides of the second arc-shaped block are respectively provided with third inclined surfaces, the third inclined surfaces are in contact with the second connecting rod, so as to drive the first connecting block to slide on the first connecting rod, one side of the second connecting block is provided with a second arc-shaped groove in sliding connection with the second arc-shaped block, and the other side of the second connecting block is provided with a third arc-shaped block in sliding connection with the first arc-shaped groove.

[0014] A use method of a geological sampling device for coal field geological exploration, comprising the following steps: S1, a plurality of fixed blocks are correspondingly arranged in the first vertical groove on the corresponding sampling pipe, then the movable frame is moved downward on the support, the drill rod is moved downward, the fixed blocks arranged on the driven wheel are smoothly slid into the first vertical groove due to the extension of the first vertical groove to the outside, until the fixed blocks are moved to the bottom of the first vertical groove, then the push plate is moved downward, so that the push plate is in contact with the sampling pipe and the driven wheel at the same time, the top end of the sampling pipe is slid into the positioning groove arranged on the push plate, and the positioning of the sampling pipe and the drill rod is realized. S2, the second protrusion on the slide plate is in contact with the end of the sampling tube, when the drill rod is further moved downward, the resistance generated makes the slide plate slide on the drill rod, and the fifth spring arranged between the push plate and the slide plate is compressed, then the drill rod is driven to rotate on the movable frame, the fixed block is driven to rotate relative to the sampling tube, the fixed block slides into the second vertical slot from the first vertical slot through the horizontal slot, and the drill rod is further driven to rotate, because the side surface of the fixed block is in contact with the second vertical slot, the resistance generated limits the rotation of the sampling tube relative to the drill rod, the drill rod drives the sampling tube to rotate together, the second protrusion on the slide plate is in corresponding relationship with the fixed groove arranged at the end of the sampling tube, and the slide plate is driven to slide on the drill rod under the action of the rebound force generated after the compression of the fifth spring, so that the second protrusion enters the fixed groove, the resistance generated after the two are in contact further limits the rotation of the sampling tube on the drill rod, and the push plate cooperates to limit the upward and downward movement of the sampling tube relative to the drill rod, so that the installation of the sampling tube on the drill rod is realized; S3, the drill rod is rotated, and the movable frame is driven to move downward on the support, so that the pointed end of the sampling tube is inserted into the coal rock sample in rotation, and under the action of mutual extrusion of the coal rock sample, the coal rock sample enters the sampling tube, and the coal rock sample is sampled and collected; S4, after the coal sample is obtained, the movable frame is moved upward on the support, and the drill rod is driven to move upward, the second nut is in contact with the slide plate, the component force generated drives the second nut to move upward relative to the push plate, so that the second protrusion slides out of the fixed groove, then the third nut is in contact with the driven wheel, the driven wheel is driven to move upward, so that the fixed block moves from the bottom to the top of the second vertical slot, and the resistance generated after the fixed block is in contact with the second vertical slot limits the movement of the sampling tube relative to the drill rod, so that the sampling tube is pulled upward until the sampling tube is pulled out of the coalfield; S5, finally, the sampling tube is moved to the ground, the drill rod is moved downward, and the drill rod is reversely rotated, so that the fixed block moves from the second vertical slot to the first vertical slot through the horizontal slot, then the drill rod is moved upward, so that the fixed block slides out of the first vertical slot, so that the drill rod and the sampling tube are separated, and the exploration and sampling of the coalfield geology are realized.

[0015] Compared with the prior art, the present application has the following advantages: 1、Through the cooperation between the fixed block, the sampling tube, the first vertical groove, the support, the movable frame, the drill rod, the first vertical groove, the driven wheel, the push plate and the positioning groove, the positioning of the sampling tube and the drill rod is realized; meanwhile, through the cooperation between the sliding plate, the second protruding block, the sampling tube, the drill rod, the push plate, the fifth spring, the movable frame, the fixed block, the horizontal groove, the first vertical groove and the second vertical groove, the drill rod drives the sampling tube to rotate together, and through the cooperation between the sliding plate, the second protruding block, the sampling tube, the fixed groove, the fifth spring, the sliding plate, the drill rod and the second protruding block, the rotation of the sampling tube on the drill rod is further limited, the push plate limits the upward and downward movement of the sampling tube relative to the drill rod, the installation of the sampling tube on the drill rod is realized, the use of bolts is not needed for fixing, the operation steps for installing the sampling tube are further simplified, the efficiency of the coalfield geological exploration sampling is improved, meanwhile, there is no problem of missing connecting pieces, and the efficiency of the coalfield geological exploration sampling is further improved; Further rotating the drill rod and driving the movable frame to move downward on the support, the tip of the sampling tube is rotated and inserted into the coal rock sample, and under the mutual extrusion of the coal rock sample, the coal rock sample enters into the sampling tube, and the coal rock sample is effectively sampled and collected; 2、After the coal sample is obtained, the movable frame is moved upward on the support, the drill rod is moved upward, the second nut is contacted with the sliding plate, the resultant force drives the second protruding block to move upward relative to the push plate, the second protruding block slides out of the fixed groove, then the third nut is contacted with the driven wheel, the driven wheel is driven to move upward, the fixed block moves from the bottom of the second vertical groove to the top, and the resistance generated after the fixed block is contacted with the second vertical groove limits the movement of the sampling tube relative to the drill rod, so that the sampling tube is pulled upward until the sampling tube is pulled out of the coalfield, the stability of the connection between the drill rod and the sampling tube in the process of pulling out the sampling tube is ensured, the connection between the drill rod and the sampling tube is prevented from being broken in the middle, and the efficiency of the coalfield geological exploration sampling is further improved; 3、Finally, the sampling tube is moved to the ground, the cooperation between the drill rod, the fixed block, the horizontal groove, the second vertical groove and the first vertical groove is realized, so that the drill rod and the sampling tube are separated, the exploration sampling of the coalfield geology is realized, the chemical properties and physical properties of the coal rock sample are analyzed and researched, the characteristics of the coal rock sample are obtained, the subsequent geological exploration and the production work of the coalfield are facilitated, in addition, the operation steps for disassembling the sampling tube are not needed to be connected by screwing the bolt, the operation steps for disassembling the sampling tube are simplified, and the efficiency of the coalfield exploration sampling is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] ATTACHMENT Figure 1 It is a structure schematic view of the sampling tube.

[0017] ATTACHMENT Figure 2 It is a structure schematic view of the drill rod.

[0018] ATTACHMENT Figure 3It is the structural schematic diagram of fixed block of the present application.

[0019] Attached Figure 4 It is the structural schematic diagram of output shaft of the present application.

[0020] Attached Figure 5 It is the structural schematic diagram of limiting wheel of the present application.

[0021] Attached Figure 6 It is the structural schematic diagram of limiting wheel of the present application. Figure 5 It is the partial enlarged view of A part in the figure.

[0022] Attached Figure 7 It is the structural schematic diagram of power assisting block of the present application.

[0023] Attached Figure 8 It is the structural schematic diagram of swing arm of the present application.

[0024] Attached Figure 9 It is the structural schematic diagram of inclined slot of the present application.

[0025] Attached Figure 10 It is the structural schematic diagram of first connecting rod of the present application.

[0026] Attached Figure 11 It is the structural schematic diagram of first connecting rod of the present application. Figure 10 It is the partial enlarged view of B part in the figure.

[0027] Attached Figure 12 It is the structural schematic diagram of limiting rod of the present application.

[0028] Attached Figure 13 It is the structural schematic diagram of first connecting block of the present application.

[0029] The reference signs shown in the figure: 1, support; 2, movable frame; 3, drill rod; 4, driven wheel; 5, fixed block; 6, sampling pipe; 7, first vertical slot; 8, second vertical slot; 9, horizontal slot; 10, push plate; 11, positioning slot; 12, vertical plate; 13, supporting leg; 14, supporting wheel; 15, first supporting pier; 16, second supporting pier; 17, conical block; 18, handle; 19, output shaft; 20, driven shaft; 21, first helical bevel gear; 22, second helical bevel gear; 23, first sprocket; 24, second sprocket; 25, chain; 26, rotating disc; 27, power assisting block; 28, sliding slot; 29, sliding block; 30, stand; 31, output motor; 32, swing arm; 33, inclined slot; 34, first spring; 35, third rotating shaft; 36, limiting wheel; 37, cam; 38, first limiting slot; 39, limiting block; 40, conical wheel; 41, conical surface; 42, releasing block; 43, groove; 44, first inclined surface; 45, roller; 46. ​​Support rod; 47. First connecting rod; 48. Second connecting rod; 49. Inverted U-shaped seat; 50. Fourth pivot; 51. Limiting rod; 52. Second inclined surface; 53. Second limiting groove; 54. Third limiting groove; 55. First protrusion; 56. Fourth limiting groove; 57. L-shaped block; 58. Third spring; 59. First arc-shaped groove; 60. First connecting block; 61. Second connecting block; 62. First arc-shaped block; 63. Fourth spring; 64. Second arc-shaped block; 65. Third inclined surface; 66. Second arc-shaped groove; 67. Third arc-shaped block; 68. Slide plate; 69. Second protrusion; 70. Fixing groove; 71. First nut; 72. Second nut; 73. Third nut; 74. Fifth spring. Detailed Implementation

[0030] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined in this application.

[0031] This invention provides a geological sampling device for coalfield geological exploration, such as... Figures 1-3 As shown, the device includes a support 1 and a movable frame 2 slidably mounted on the support 1. A drill rod 3 is rotatably connected to the movable frame 2. Specifically, the movable frame 2 is equipped with a reducer, the movable end of which is connected to the drill rod 3, providing power for the drill rod 3 to rotate on the movable frame 2. By rotating the drill rod 3 and driving the movable frame 2 to move downward on the support 1, the tip of the sampling tube 6 is rotated and inserted into the coal and rock sample. Under the mutual compression of the coal and rock samples, the coal and rock sample enters the sampling tube 6, effectively collecting the coal and rock sample. The end of the drill pipe 3 is slidably connected with a driven wheel 4, the side of the driven wheel 4 is provided with a plurality of fixed blocks 5, further comprising a sampling pipe 6 sleeved outside the drill pipe 3, the sampling pipe 6 is respectively provided with a first vertical groove 7 and a second vertical groove 8, and a horizontal groove 9 communicating the bottom of the first vertical groove 7 and the second vertical groove 8, the first vertical groove 7 extends to the outside, the fixed blocks 5 are in sliding contact with the first vertical groove 7, the second vertical groove 8 and the horizontal groove 9 in sequence, the drill pipe 3 is slidably connected with a push plate 10 in contact with the sampling pipe 6 and the driven wheel 4, the push plate 10 is provided with a positioning groove 11 in sliding contact with the drill pipe 3, further comprising a sliding plate 68 slidably arranged on the drill pipe 3, specifically the driven wheel 4, the push plate 10 and the sliding plate 68 are slidably arranged on the drill pipe 3 through connecting keys, so that the driven wheel 4, the push plate 10 and the sliding plate 68 can only slide relative to the drill pipe 3 and cannot rotate; the sliding plate 68 is provided with a plurality of second protrusions 69, the end of the sampling pipe 6 is provided with a plurality of fixed grooves 70 in sliding contact with the second protrusions 69, the drill pipe 3 is respectively provided with a first nut 71, a second nut 72 and a third nut 73, the fifth spring 74 is arranged between the sliding plate 68 and the first nut 71, the second nut 72 and the third nut 73 are respectively in contact with the driven wheel 4 and the push plate 10, first, a plurality of fixed blocks 5 are corresponded to the first vertical groove 7 on the corresponding sampling pipe 6, then the movable frame 2 is moved downward on the support 1, driving the drill pipe 3 to move downward, because the first vertical groove 7 extends to the outside, the fixed blocks 5 provided on the driven wheel 4 are smoothly slid into the first vertical groove 7, until the fixed blocks 5 move to the bottom of the first vertical groove 7, then the push plate 10 moves downward, so that it is in contact with the sampling pipe 6 and the driven wheel 4 at the same time, at the same time, the top end of the sampling pipe 6 slides into the positioning groove 11 provided on the push plate 10, realizing the positioning of the sampling pipe 6 and the drill pipe 3; Meanwhile, the second protrusions 69 on the sliding plate 68 are in contact with the end of the sampling tube 6, and when the drill rod 3 is further moved downward, the resistance generated causes the sliding plate 68 to slide on the drill rod 3 and compress the fifth spring 74 between the sliding plate 68 and the push plate 10, and then the drill rod 3 is driven to rotate on the movable frame 2, driving the fixed block 5 to rotate relative to the sampling tube 6, so that the fixed block 5 slides into the second vertical slot 8 from the first vertical slot 7 through the horizontal slot 9, and further drives the drill rod 3 to rotate, and because the side surface of the fixed block 5 is in contact with the second vertical slot 8, the resistance generated limits the rotation of the sampling tube 6 relative to the drill rod 3, so that the drill rod 3 drives the sampling tube 6 to rotate together, and the second protrusions 69 on the sliding plate 68 correspond to the fixed grooves 70 provided at the end of the sampling tube 6, and under the action of the elastic force generated after the compression of the fifth spring 74, the sliding plate 68 slides on the drill rod 3, so that the second protrusions 69 enter the fixed grooves 70, and the resistance generated after the two are in contact further limits the rotation of the sampling tube 6 on the drill rod 3, and the push plate 10 limits the upward and downward movement of the sampling tube 6 relative to the drill rod 3, so that the sampling tube 6 is installed on the drill rod 3 without the need for using bolts for fixation, further simplifying the operation steps for installing the sampling tube 6 and improving the efficiency of the coalfield geological exploration sampling, and there is no problem of missing connecting parts, further improving the efficiency of the coalfield geological exploration sampling; After the coal sample is obtained, the movable frame 2 is moved upward on the support 1, driving the drill rod 3 to move upward, and the second nut 72 first comes into contact with the sliding plate 68, and the resultant force drives the sliding plate 68 to move upward relative to the push plate 10, so that the second protrusions 69 slide out of the fixed grooves 70, and then the third nut 73 comes into contact with the driven wheel 4, driving the driven wheel 4 to move upward, so that the fixed block 5 moves from the bottom to the top of the second vertical slot 8, and the resistance generated after the fixed block 5 comes into contact with the second vertical slot 8 limits the movement of the sampling tube 6 relative to the drill rod 3, so as to pull the sampling tube 6 upward until the sampling tube 6 is pulled out of the coalfield, ensuring the stability of the connection between the drill rod 3 and the sampling tube 6 during the process of pulling out the sampling tube 6, avoiding the breakage of the connection between the drill rod 3 and the sampling tube 6 in the middle of the way, and further improving the efficiency of the coalfield geological exploration sampling; Finally, the sampling tube 6 is moved to the ground, the drill rod 3 is moved downward, and the drill rod 3 is reversely rotated, so that the fixed block 5 moves from the second vertical slot 8 to the first vertical slot 7 through the horizontal slot 9, and then the drill rod 3 is moved upward, so that the fixed block 5 slides out of the first vertical slot 7, thereby realizing the separation of the drill rod 3 and the sampling tube 6, realizing the exploration and sampling of the coalfield geology, and through the analysis and research on the chemical properties and physical properties of the coal rock sample, the characteristics of the coal rock sample are obtained, which is convenient for guiding the subsequent geological exploration and the production work of the coalfield.

[0032] Preferably, as Figure 1 andFigure 2 As shown in the drawings, the support 1 comprises a vertical plate 12 and a supporting leg 13, the movable frame 2 is slidingly arranged on one side of the vertical plate 12, the other side of the vertical plate 12 is rotationally connected with a supporting wheel 14, the supporting leg 13 comprises a first supporting pier 15 and a second supporting pier 16 symmetrically arranged on the bottom of the vertical plate 12, the end of the first supporting pier 15 and the second supporting pier 16 is provided with a tapered block 17, the top of the vertical plate 12 is provided with a handle 18, when searching for a suitable sampling point, first, taking the supporting wheel 14 as a fulcrum, the handle 18 is pulled downward to make the whole sampling device tilt, so that the contact point of the sampling device with the ground is the supporting wheel 14, the friction between the sampling device and the ground is reduced, which facilitates the subsequent pushing of the sampling device, then the sampling device is moved by pushing the handle 18, and the sampling device is moved to a suitable sampling point; then the handle 18 is pushed in the opposite direction, so that the supporting leg 13 is in contact with the ground again, and the tapered blocks 17 provided on the two first supporting piers 15 and the two second supporting piers 16 are inserted into the ground, so that the sampling device is fixed on the sampling point, which facilitates the subsequent exploration and sampling of the coalfield geology.

[0033] Preferably, as shown in the drawings, Figure 4 , Figure 7 , Figure 8 and Figure 9 , the vertical plate 12 is rotationally connected with an output shaft 19 and a driven shaft 20, the output shaft 19 is provided with a first spiral bevel gear 21, the driven shaft 20 is provided with a second spiral bevel gear 22 engaged with the first spiral bevel gear 21, further comprising a first sprocket 23 arranged on the driven shaft 20, a second sprocket 24 rotationally arranged on the vertical plate 12, and a chain 25 sleeved outside the first sprocket 23 and the second sprocket 24, the chain 25 is connected with the movable frame 2, the first spiral bevel gear 21 is driven to rotate by the output shaft 19, the torque is transmitted to the driven shaft 4 through the second spiral bevel gear 22 to drive the driven shaft 4 to rotate, so that the first sprocket 23 rotates on the vertical plate 12, thereby driving the chain 25 sleeved outside the first sprocket 23 and the second sprocket 24 to move, so that the movable frame 2 arranged on the chain 25 moves downward, driving the sampling pipe 6 fixed on the drill rod 3 to press down, cooperating with the drill rod 3 to drive the sampling pipe 6 to rotate, realizing the exploration and sampling of the coalfield geology, which facilitates the subsequent geological exploration and production work of the coalfield; in addition, by controlling the tooth number ratio of the first spiral bevel gear 21 and the second spiral bevel gear 22, the speed ratio of the output shaft 19 and the driven shaft 20 is controlled, so that the rate of the drill rod 3 pressing down is better controlled, and the effect of the exploration and sampling of the coalfield geology is improved. Preferably, as shown in the drawings, Figure 4 , Figure 7 , Figure 8 and Figure 9As shown, the end of the output shaft 19 is provided with a rotating disc 26, the rotating disc 26 is provided with a power block 27, the power block 27 is provided with a sliding groove 28, the sliding groove 28 is slidably connected with a sliding block 29, the sliding block 29 is provided with a vertical column 30, further comprising an output motor 31 arranged on the vertical plate 12, the movable end of the output motor 31 is provided with a swing arm 32, the swing arm 32 is provided with an inclined groove 33 slidably connected with the vertical column 30, the first spring 34 is arranged between the sliding block 29 and the power block 27, the swing arm 32 is driven to rotate by the output motor 31, so that the inclined groove 33 further contacts with the vertical column 30, the resulting component force is transmitted to the power block 27 through the sliding block 29, thereby driving the rotating disc 26 to rotate together, providing power for the rotation of the output shaft 19, and then realizing the lifting and pressing of the sampling tube 6, and completing the exploration sampling of the coal field geology; in addition, when the resistance of the sampling tube 6 during the pressing process is larger, the resistance of the swing arm 32 pushing the power block 27 to rotate is also gradually increased, at this time, the component force generated after the inclined groove 33 contacts with the vertical column 30 will drive the vertical column 30 to move outward, and further compress the first spring 34, drive the sliding block 29 to move on the resistance arm, increase the distance between the sliding block 29 and the output shaft 19, thereby increasing the force arm acting on the output shaft 19, increasing the power of the drill rod 3 pressing, so that the sampling tube 6 can better break through the hard rock stratum, and then improve the effect of the exploration sampling of the coal field geology.

[0034] Preferably, as shown in Figure 5 , Figure 6 and Figure 7 , the vertical plate 12 is rotatably connected with a third rotating shaft 35 connected with the second sprocket 24, the third rotating shaft 35 is keyed connected with a limiting wheel 36, one side of the second sprocket 24 is provided with a cam 37, the cam 37 is provided with a plurality of first limiting grooves 38, one side of the limiting wheel 36 is provided with a limiting block 39 in sliding contact with the first limiting groove 38, when the sampling is completed, the drill rod 3 needs to be fixed, the limiting wheel 36 is slid on the third rotating shaft 35, so that the limiting block 39 provided on one side of the limiting wheel 36 slides into the first limiting groove 38 provided on the cam 37, the resistance generated after the two contacts will limit the rotation of the second sprocket 24 relative to the third rotating shaft 35, at the same time, since the limiting wheel 36 is keyed connected with the third rotating shaft 35, the rotation of the second sprocket 24 relative to the third rotating shaft 35 is limited, ensuring that the movable frame 2 is stably fixed on the support 1 during the process of transferring the sampling device, avoiding the movable frame 2 from suddenly falling and causing the drill rod 3 to knock and damage.

[0035] Preferably, as shown in Figure 5 , Figure 6 and Figure 7As shown, one side of the limiting wheel 36 is provided with a conical wheel 40, the side of the conical wheel 40 is provided with a conical surface 41, the supporting leg 13 is slidingly connected with a release block 42, one end of the release block 42 is provided with a groove 43, the two sides of the groove 43 are respectively provided with a first inclined surface 44 in contact with the conical surface 41, the other end of the release block 42 is rotatably connected with a roller 45, the roller 45 extends to the outside of the supporting leg 13, the conical wheel 40 and the supporting leg 13 are provided with a second spring, after the sampling device is moved to the designated position, the supporting wheel 14 is used as the fulcrum to rotate the bracket 1, the roller 45 extending to the outside of the supporting leg 13 will first contact the ground, the resulting component force will drive the release block 42 to slide on the supporting leg 13, so that the groove 43 provided at the end of the release block 42 is in contact with the conical wheel 40, the first inclined surface 44 provided on both sides of the groove 43 is in contact with the conical surface 41 provided on the side of the conical wheel 40, the resulting component force drives the conical wheel 40 to move to one side, and drives the limiting wheel 36 to move together, so that the limiting block 39 provided on one side of the limiting wheel 36 slides out of the first limiting groove 38 and compresses the second spring, the restriction of the rotation of the second sprocket 24 on the third shaft 35 is released, which is convenient for subsequent movement of the movable frame 2 on the bracket 1, drives the sampling tube 6 to press down, realizes the exploration sampling of the coal field geology; after the sampling is completed, when the sampling device needs to be transferred, the rebound force generated after the compression of the second spring drives the conical wheel 40 to reset, thereby driving the limiting block 39 on one side of the limiting wheel 36 to reset, re-entering into the corresponding first limiting groove 38, the resistance generated after the contact of the two limits the rotation of the second sprocket 24 relative to the third shaft 35, at the same time, since the limiting wheel 36 is keyed connected with the third shaft 35, the rotation of the second sprocket 24 relative to the third shaft 35 is further limited, which ensures that the movable frame 2 is stably fixed on the bracket 1 during the process of transferring the sampling device, avoids the sudden drop of the movable frame 2, and causes the knocking damage of the drill pipe 3.

[0036] Preferably, as Figure 10 , Figure 11 , Figure 12 and Figure 13As shown, the two sides of the vertical plate 12 are rotatably connected with a plurality of support rods 46 rotatably connected with the second support pier 16, the first support pier 15 and the second support pier 16 are rotatably connected with a first connecting rod 47 and a second connecting rod 48 respectively, further comprising a inverted U-shaped seat 49, the inverted U-shaped seat 49 is provided with a fourth rotating shaft 50 rotatably connected with the first connecting rod 47 and the second connecting rod 48, the upper side of the first connecting rod 47 and the second connecting rod 48 is in contact with the inverted U-shaped seat 49, the roller 45 is located between the first support pier 15 and the second support pier 16, by sliding the inverted U-shaped seat 49 upward, the fourth rotating shaft 50 drives one end of the first connecting rod 47 and the second connecting rod 48 to move together, so that the first connecting rod 47 and the second connecting rod 48 gradually fold, drive the second support pier 16 to move, at the same time, the two ends of the plurality of support rods 46 are rotatably connected with the vertical plate 12 and the second support pier 16 respectively, which guides the sliding of the second support pier 16 on the vertical plate 12, so as to translate the second support pier 16 to below the first support pier 15, realize the retraction of the second support pier 16, facilitate the subsequent transportation of the sampling device, in addition, during transportation, the roller 45 is located between the support pier and the second support pier 16, avoiding the contact between the roller 45 and the ground during transportation, removing the restriction of the rotation of the second sprocket 24 on the vertical plate 12, so as to ensure that the movable frame 2 is stably fixed on the support 1 during transportation, avoiding the sudden falling of the movable frame 2 and damage; before sampling, by pressing the inverted U-shaped seat 49 downward, the second support leg 13 is reset, so that the second support pier 16 and the first support pier 15 are again on the same horizontal plane, by inserting a plurality of tapered blocks 17 into the ground, the sampling device is fixed on the ground, at the same time, the first connecting rod 47 and the second connecting rod 48 are in contact with the inverted U-shaped seat 49, which limits the further pressing of the inverted U-shaped seat 49, cooperates with the support rod 46, the vertical plate 12 and the first connecting rod 47 and the second connecting rod 48, forms a stable triangular structure, further ensures the stability of the whole structure, improves the effect of coalfield geological exploration sampling.

[0037] Preferably, as Figure 10 , Figure 11 , Figure 12 and Figure 13As shown, the two sides of the inverted U-shaped seat 49 are respectively provided with limiting rods 51, one side of the end of the limiting rod 51 is provided with a second inclined surface 52, the first connecting rod 47 and the second connecting rod 48 are both provided with a second limiting groove 53 and a third limiting groove 54 in contact with the second inclined surface 52, one end of the limiting rod 51 is provided with a plurality of first protrusions 55, the inverted U-shaped seat 49 is provided with a plurality of fourth limiting grooves 56 in sliding contact with the first protrusions 55, the inverted U-shaped seat 49 is provided with a plurality of L-shaped blocks 57, the third springs 58 are arranged between the L-shaped blocks 57 and the first protrusions 55, when the second branch pier 16 needs to be folded, the limiting rod 51 is pulled out of the inverted U-shaped seat 49 first, so that the first protrusions 55 on the limiting rod 51 slide out of the fourth limiting grooves 56, the rotation of the limiting rod 51 on the inverted U-shaped seat 49 is released, then the limiting rod 51 is rotated by 180 degrees, so that the second inclined surface 52 arranged at the end of the limiting rod 51 moves to the other side; At this time, the inverted U-shaped seat 49 is pushed upward again, the first connecting rod 47 and the second connecting rod 48 are driven to rotate by the fourth rotating shaft 50, so that the second inclined surface 52 is in contact with the second limiting groove 53, and the resulting component force drives the limiting rod 51 to slide on the inverted U-shaped seat 49 and compresses the third spring 58, thereby releasing the rotation of the first connecting rod 47 and the second connecting rod 48 on the inverted U-shaped seat 49, realizing the folding of the second branch pier 16, after the second branch pier 16 is folded in place, the limiting rod 51 moves to the third limiting groove 54, and under the action of the rebound force generated after the compression of the third spring 58, the limiting rod 51 is reset and enters the third limiting groove 54, at this time, if the second branch pier 16 is unfolded in the opposite direction, the vertical surface on the other side of the limiting rod 51 is in contact with the third limiting groove 54, which will limit the reverse rotation of the first connecting rod 47 and the second connecting rod 48 on the inverted U-shaped seat 49, thereby realizing the fixation of the second branch pier 16 after folding, and no additional operation steps are required, further improving the efficiency of coal field geological exploration sampling.

[0038] Preferably, as Figure 10 , Figure 11 , Figure 12 and Figure 13As shown, the end of the limiting rod 51 is provided with a first arc-shaped slot 59, a plurality of first connecting blocks 60 and second connecting blocks 61 are rotatably connected to the first connecting rod 47 and the second connecting rod 48 respectively, the end of the first connecting block 60 is provided with a first arc-shaped block 62 which is in sliding connection with the first arc-shaped slot 59, the fourth spring 63 is arranged between the first connecting block 60 and the first connecting rod 47, the end of the first connecting rod 47 is provided with a second arc-shaped block 64, the two sides of the second arc-shaped block 64 are respectively provided with third inclined surfaces 65, after the third inclined surface 65 contacts the second connecting rod 48, the first connecting block 60 is driven to slide on the first connecting rod 47, one side of the second connecting block 61 is provided with a second arc-shaped slot 66 which is in sliding connection with the second arc-shaped block 64, the other side of the second connecting block 61 is provided with a third arc-shaped block 67 which is in sliding connection with the first arc-shaped slot 59, when the limiting rod 51 located on the side of the first connecting rod 47 is rotated, the first arc-shaped block 62 provided at the end of the first connecting block 60 contacts the first arc-shaped slot 59 provided at the end of the limiting rod 51, a torque is generated to drive the first connecting block 60 to rotate on the first connecting rod 47, and the second connecting block 61 is driven to rotate on the second connecting rod 48 through the force generated after the second arc-shaped block 64 contacts the second arc-shaped slot 66, and the third arc-shaped block 67 is rotated together, so that it contacts the first arc-shaped slot 59 provided on the other limiting rod 51, a torque is generated to drive the other limiting rod 51 to rotate, without the need to rotate the two limiting rods 51 separately, further simplifying the operation steps of unfolding and folding the second supporting pier 16, and improving the efficiency of coal field geological exploration sampling.

[0039] A use method of a geological sampling device for coal field geological exploration, as shown in Figure 1 、 Figure 2 and Figure 3 , comprising the following steps: S1, first, a plurality of fixed blocks 5 are correspondingly arranged in the first vertical slot 7 on the corresponding sampling pipe 6, then the movable frame 2 is moved downward on the support 1, driving the drill rod 3 to move downward, because the first vertical slot 7 extends to the outside, the fixed block 5 provided on the driven wheel 4 is smoothly slid into the first vertical slot 7, until the fixed block 5 moves to the bottom of the first vertical slot 7, then the push plate 10 is moved downward, so that it is in contact with the sampling pipe 6 and the driven wheel 4 at the same time, and the top end of the sampling pipe 6 is slid into the positioning slot 11 provided on the push plate 10, realizing the positioning of the sampling pipe 6 and the drill rod 3; S2, the second protrusion 69 on the slide plate 68 is in contact with the end of the sampling tube 6, further down the drill pipe 3, the resistance generated makes the slide plate 68 slide on the drill pipe 3, and the fifth spring 74 between the push plate 10 and the slide plate 68 is compressed, then drive the drill pipe 3 to rotate on the movable frame 2, drive the fixed block 5 to rotate relative to the sampling tube 6, so that the fixed block 5 slides into the second vertical slot 8 through the horizontal slot 9 from the first vertical slot 7, further drive the drill pipe 3 to rotate, because the side of the fixed block 5 is in contact with the second vertical slot 8, the resistance generated limits the rotation of the sampling tube 6 relative to the drill pipe 3, so that the drill pipe 3 drives the sampling tube 6 to rotate together, at the same time, the second protrusion 69 on the slide plate 68 corresponds to the fixed groove 70 provided at the end of the sampling tube 6, and under the action of the resilience generated after the compression of the fifth spring 74, drives the slide plate 68 to slide on the drill pipe 3, so that the second protrusion 69 enters the fixed groove 70, the resistance generated after the two are in contact further limits the rotation of the sampling tube 6 on the drill pipe 3, cooperates with the push plate 10 to limit the upward and downward movement of the sampling tube 6 relative to the drill pipe 3, realizes the installation of the sampling tube 6 on the drill pipe 3, without using bolts for fixation, further simplifies the operation steps of installing the sampling tube 6, improves the efficiency of coal field geological exploration sampling, and there is no problem of missing connecting parts, further improves the efficiency of coal field geological exploration sampling; S3, rotate the drill pipe 3, and drive the movable frame 2 to move downward on the support 1, so that the sharp end of the sampling tube 6 is inserted into the coal rock sample, and under the action of the mutual extrusion of the coal rock sample, the coal rock sample enters the sampling tube 6, effectively sampling and collecting the coal rock sample; S4, after obtaining the coal sample, move the movable frame 2 upward on the support 1, drive the drill pipe 3 to move upward, the second nut 72 first contacts the slide plate 68, the resultant force drives it to move upward relative to the push plate 10, so that the second protrusion 69 slides out of the fixed groove 70, then the third nut 73 contacts the driven wheel 4, drives the driven wheel 4 to move upward, so that the fixed block 5 moves from the bottom to the top of the second vertical slot 8, and the resistance generated after the fixed block 5 contacts the second vertical slot 8 limits the movement of the sampling tube 6 relative to the drill pipe 3, so as to pull the sampling tube 6 upward, until the sampling tube 6 is pulled out of the coal field, ensure the stability of the connection between the drill pipe 3 and the sampling tube 6 during the process of pulling out the sampling tube 6, avoid the connection between the drill pipe 3 and the sampling tube 6 breaking in the middle, further improve the efficiency of coal field geological exploration sampling; S5, finally, the sampling tube 6 is moved to the flat ground, the drill pipe 3 is moved downward, and the drill pipe 3 is reversely rotated, so that the fixed block 5 is moved from the second vertical slot 8 to the first vertical slot 7 through the horizontal slot 9, then the drill pipe 3 is moved upward, so that the fixed block 5 slides out of the first vertical slot 7, thereby realizing the separation of the drill pipe 3 and the sampling tube 6, realizing the exploration sampling of the coal field geology, through the analysis and research on the chemical properties and physical properties of the coal rock sample, the characteristics of the coal rock sample are obtained, which is convenient for guiding the subsequent geological exploration and the production work of the coal field; in addition, the operation steps of the above-mentioned operation of disassembling the sampling tube 6 do not need to be connected by screwing the bolt, the operation steps of disassembling the sampling tube 6 are simplified, and the efficiency of the exploration sampling of the coal field is further improved.

[0040] Embodiment 1 The present application provides a geological sampling device for coal field geological exploration and a use method, as shown in Figures 1-3 When the coal field exploration sampling is needed, the sampling tube 6 is first fixed on the drill pipe 3, specifically, a plurality of fixed blocks 5 are corresponded to the first vertical slot 7 on the corresponding sampling tube 6, then the movable frame 2 is moved downward on the support 1, driving the drill pipe 3 to move downward, because the first vertical slot 7 extends to the outside, the fixed block 5 provided on the driven wheel 4 is smoothly slid into the first vertical slot 7, until the fixed block 5 moves to the bottom of the first vertical slot 7, then the push plate 10 is moved downward, so that it is in contact with the sampling tube 6 and the driven wheel 4 at the same time, and the top end of the sampling tube 6 is slid into the positioning slot 11 provided on the push plate 10, realizing the positioning of the sampling tube 6 and the drill pipe 3; At the same time, the second protrusions 69 provided on the sliding plate 68 are in contact with the end of the sampling tube 6, when the drill pipe 3 is further moved downward, the resistance generated makes the sliding plate 68 slide on the drill pipe 3, and the fifth spring 74 provided between the push plate 10 and the sliding plate 68 is compressed, then the drill pipe 3 is driven to rotate on the movable frame 2, driving the fixed block 5 to rotate relative to the sampling tube 6, so that the fixed block 5 is slid into the second vertical slot 8 from the first vertical slot 7 through the horizontal slot 9, and after the drill pipe 3 is further driven to rotate, because the side surface of the fixed block 5 is in contact with the second vertical slot 8, the resistance generated limits the rotation of the sampling tube 6 relative to the drill pipe 3, so that the drill pipe 3 drives the sampling tube 6 to rotate together, at the same time, the second protrusions 69 provided on the sliding plate 68 are corresponded to the fixed slot 70 provided on the end of the sampling tube 6, and under the action of the rebound force generated after the compression of the fifth spring 74, the sliding plate 68 is driven to slide on the drill pipe 3, so that the second protrusions 69 enter the fixed slot 70, the resistance generated after the contact of the two further limits the rotation of the sampling tube 6 on the drill pipe 3, and the push plate 10 limits the upward and downward movement of the sampling tube 6 relative to the drill pipe 3, realizing the installation of the sampling tube 6 on the drill pipe 3, without using the bolt for fixing, further simplifying the operation steps of installing the sampling tube 6, improving the efficiency of the exploration sampling of the coal field geology, and there is no problem of missing the connecting piece, further improving the efficiency of the exploration sampling of the coal field geology; Further rotate the drill pipe 3, and drive the movable frame 2 to move downward on the support 1, so that the tip of the sampling tube 6 is inserted into the coal rock sample, and under the action of the mutual extrusion of the coal rock sample, the coal rock sample enters the sampling tube 6, effectively sampling and collecting the coal rock sample; After the coal sample is obtained, the movable frame 2 is moved upward on the support 1, and the drill pipe 3 is moved upward, the second nut 72 is first contacted with the slide plate 68, and the resulting component force drives the second lug 69 to slide out of the fixed groove 70, then the third nut 73 is contacted with the driven wheel 4, and the driven wheel 4 is driven to move upward, so that the fixed block 5 moves from the bottom to the top of the second vertical groove 8, and the resistance generated after the fixed block 5 is contacted with the second vertical groove 8 limits the movement of the sampling tube 6 relative to the drill pipe 3, so as to pull up the sampling tube 6 upward until the sampling tube 6 is pulled out of the coal field, ensuring the stability of the connection between the drill pipe 3 and the sampling tube 6 during the process of pulling out the sampling tube 6, avoiding the connection between the drill pipe 3 and the sampling tube 6 being broken in the middle of the way, and further improving the efficiency of the coal field geological exploration sampling; Finally, the sampling tube 6 is moved to the ground, the drill pipe 3 is moved downward, and the drill pipe 3 is reversely rotated, so that the fixed block 5 moves from the second vertical groove 8 to the first vertical groove 7 through the horizontal groove 9, then the drill pipe 3 is moved upward, so that the fixed block 5 slides out of the first vertical groove 7, thereby realizing the separation of the drill pipe 3 and the sampling tube 6, realizing the exploration and sampling of the coal field geology, and obtaining the characteristics of the coal rock sample by analyzing and researching the chemical properties and physical properties of the coal rock sample, which is convenient for guiding the subsequent geological exploration and production work of the coal field. In addition, the above operation steps for disassembling the sampling tube 6 do not need to be connected by screwing the bolt, which simplifies the operation steps for disassembling the sampling tube 6, and further improves the efficiency of the coal field exploration sampling.

[0041] Example 2 On the basis of example 1, as shown in Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 When finding a suitable sampling point, first take the support wheel 14 as a fulcrum, pull down the handle 18 to make the whole sampling device tilt, so that the contact point of the sampling device with the ground is the support wheel 14, reducing the friction between the sampling device and the ground, and facilitating the subsequent pushing of the sampling device, then move the sampling device by pushing the handle 18, and move the sampling device to a suitable sampling point; After the suitable site is found, the handle 18 is then pushed reversely, so that the supporting leg 13 is in contact with the ground again, and the conical block 17 provided on the two first supporting piers 15 and the two second supporting piers 16 is inserted into the ground, so that the sampling device is fixed on the sampling point, and the subsequent exploration and sampling of the coalfield geology are facilitated; When sampling is needed, the swing arm 32 is driven to rotate by the output motor 31, so that the inclined chute 33 is further in contact with the stand column 30, and the resulting component force is transmitted to the power assisting block 27 through the sliding block 29, so as to drive the rotating disc 26 to rotate together, and power is provided for the rotation of the output shaft 19, and the first helical bevel gear 21 is driven to rotate by the output shaft 19, the torque is transmitted to the driven wheel 4 through the second helical bevel gear 22, the first chain wheel 23 is driven to rotate on the vertical plate 12, so as to drive the chain 25 sleeved outside the first chain wheel 23 and the second chain wheel 24 to move, the movable frame 2 provided on the chain 25 is driven to move downward, the sampling pipe 6 fixed on the drill rod 3 is driven to press downward, and the drill rod 3 is driven to rotate together with the sampling pipe 6, so that the exploration and sampling of the coalfield geology are realized, and the subsequent geological exploration and the production work of the coalfield are facilitated; in addition, by controlling the gear ratio of the first helical bevel gear 21 and the second helical bevel gear 22, the speed ratio of the output shaft 19 and the driven shaft 20 is controlled, so that the rate of the downward pressing of the drill rod 3 is better controlled, and the effect of the exploration and sampling of the coalfield geology is improved. In addition, when the resistance of the downward pressing process of the sampling pipe 6 is large, the resistance of the rotation of the swing arm 32 pushing the power assisting block 27 is also gradually increased, at this time, the component force generated after the inclined chute 33 is in contact with the stand column 30 will drive the stand column 30 to move outward, and further compress the first spring 34, drive the sliding block 29 to move on the resistance arm, increase the spacing between the sliding block 29 and the output shaft 19, so as to increase the force arm acting on the output shaft 19, increase the power of the downward pressing of the drill rod 3, so that the sampling pipe 6 can better break through the hard rock stratum, and the effect of the exploration and sampling of the coalfield geology is improved.

[0042] Example 3 On the basis of example 2, as Figures 5-7As shown, after the sampling device is moved to the designated position, the support wheel 14 is used as the fulcrum to rotate the support 1, the roller 45 extending to the outside of the supporting leg 13 will first contact the ground, and the resulting force will drive the release block 42 to slide on the supporting leg 13, so that the recess 43 provided at the end of the release block 42 contacts the conical wheel 40, the first inclined surface 44 provided on both sides of the recess 43 contacts the conical surface 41 provided on the side of the conical wheel 40, the resulting force drives the conical wheel 40 to move to one side, and drives the limiting wheel 36 to move together, so that the limiting block 39 provided on one side of the limiting wheel 36 slides out of the first limiting groove 38 and compresses the second spring, thereby releasing the restriction of the second sprocket 24 rotating on the third shaft 35, facilitating the subsequent movement of the movable frame 2 on the support 1, driving the sampling tube 6 to press down, and realizing the exploration and sampling of the coal field geology; after sampling is completed, when the sampling device needs to be transferred, the elastic force generated after the second spring is compressed drives the conical wheel 40 to reset, thereby driving the limiting block 39 on one side of the limiting wheel 36 to reset and re-enter the corresponding first limiting groove 38, and the resistance generated after the two contact will limit the rotation of the second sprocket 24 relative to the third shaft 35. At the same time, since the limiting wheel 36 is keyed connected with the third shaft 35, the rotation of the second sprocket 24 relative to the third shaft 35 is further limited, ensuring that the movable frame 2 is stably fixed on the support 1 during the transfer of the sampling device, avoiding the sudden drop of the movable frame 2 and causing the drill pipe 3 to be damaged.

[0043] Example 4 On the basis of example 3, as shown in Figure 5 、 Figure 10 、 Figure 11 、 Figure 12 and Figure 13 , during the transportation of the sampling device, the roller 45 is located between the support pier and the second support pier 16, avoiding the contact between the roller 45 and the ground during transportation, releasing the restriction of the second sprocket 24 rotating on the vertical plate 12, thereby ensuring that the movable frame 2 is stably fixed on the support 1 during transportation, avoiding the damage caused by the sudden drop of the movable frame 2; before sampling, by pressing the inverted U-shaped seat 49 downward, the second supporting leg 13 is driven to reset, so that the second support pier 16 and the first support pier 15 are again on the same horizontal plane, and the plurality of conical blocks 17 are inserted into the ground, realizing the fixation of the sampling device on the ground. At the same time, the first connecting rod 47 and the second connecting rod 48 contact the inverted U-shaped seat 49, limiting the further downward pressing of the inverted U-shaped seat 49, and cooperating with the support rod 46, the vertical plate 12, and the first connecting rod 47 and the second connecting rod 48 to form a stable triangular structure, further ensuring the stability of the overall structure and improving the effect of the exploration and sampling of the coal field geology; The second support 16 needs to be folded to facilitate subsequent transportation of the sampling device. First, the limiting rod 51 is pulled out of the inverted U-shaped seat 49, so that the first protrusion 55 on the limiting rod 51 slides out of the fourth limiting groove 56, the rotation of the limiting rod 51 on the inverted U-shaped seat 49 is released, then the limiting rod 51 is rotated by 180 degrees, so that the second inclined surface 52 provided at the end of the limiting rod 51 moves to the other side; At this time, the inverted U-shaped seat 49 is pushed upward again, so that the fourth rotating shaft 50 drives one end of the first connecting rod 47 and the second connecting rod 48 to move together, so that the second inclined surface 52 is in contact with the second limiting groove 53, and the resulting component force drives the limiting rod 51 to slide on the inverted U-shaped seat 49 and compresses the third spring 58, thereby releasing the rotation of the first connecting rod 47 and the second connecting rod 48 on the inverted U-shaped seat 49, so that the first connecting rod 47 and the second connecting rod 48 are smoothly and gradually folded, driving the second support 16 to move, and at the same time, the two ends of the plurality of supporting rods 46 are respectively connected with the vertical plate 12 and the second support 16, which guides the sliding of the second support 16 on the vertical plate 12, thereby translating the second support 16 to the lower side of the first support 15, realizing the retraction of the second support 16, and facilitating the subsequent transportation of the sampling device. When the second support 16 is folded in place, the limiting rod 51 moves to the third limiting groove 54, and under the action of the elastic force generated after the compression of the third spring 58, the limiting rod 51 is reset and enters the third limiting groove 54. At this time, if the second support 16 is unfolded in the opposite direction, the vertical surface on the other side of the limiting rod 51 will be in contact with the third limiting groove 54, which will limit the reverse rotation of the first connecting rod 47 and the second connecting rod 48 on the inverted U-shaped seat 49, thereby realizing the fixation of the second support 16 after folding, without the need for additional operation steps, further improving the efficiency of coal field geological exploration sampling; In addition, when the limiting rod 51 located on the side of the first connecting rod 47 is rotated, the first arc-shaped block 62 provided at the end of the first connecting block 60 is in contact with the first arc-shaped groove 59 provided at the end of the limiting rod 51, a torque is generated to drive the first connecting block 60 to rotate on the first connecting rod 47, and the second connecting block 61 is driven to rotate on the second connecting rod 48 through the component force generated after the second arc-shaped block 64 and the second arc-shaped groove 66 are in contact, and the third arc-shaped block 67 is rotated together to make it in contact with the first arc-shaped groove 59 provided on the other limiting rod 51, a torque is generated to drive the other limiting rod 51 to rotate, without the need to rotate the two limiting rods 51 separately, further simplifying the operation steps of unfolding and folding the second support 16, and improving the efficiency of coal field geological exploration sampling.

Claims

1. A geological sampling device for coalfield geological exploration, comprising a support (1) and a movable frame (2) slidably mounted on the support (1), characterized in that, A drill rod (3) is rotatably connected to the movable frame (2). A driven wheel (4) is slidably connected to the end of the drill rod (3). Several fixing blocks (5) are provided on the side of the driven wheel (4). A sampling tube (6) is also included, which is sleeved on the outside of the drill rod (3). The sampling tube (6) is provided with a first vertical groove (7) and a second vertical groove (8), and a horizontal groove (9) connecting the bottom of the first vertical groove (7) and the second vertical groove (8). The first vertical groove (7) extends to the outside. The fixing blocks (5) slide in contact with the first vertical groove (7), the second vertical groove (8) and the horizontal groove (9) in sequence. A component that contacts the sampling tube (6) and the driven wheel (4) is slidably connected to the drill rod (3). The push plate (10) is provided with a positioning groove (11) for sliding contact with the drill rod (3), and also includes a sliding plate (68) slidably disposed on the drill rod (3). The sliding plate (68) is provided with a number of second protrusions (69). The end of the sampling tube (6) is provided with a number of fixing grooves (70) that slide in contact with the second protrusions (69). The drill rod (3) is provided with a first nut (71), a second nut (72) and a third nut (73). A fifth spring (74) is provided between the sliding plate (68) and the first nut (71). The second nut (72) and the third nut (73) are in contact with the driven wheel (4) and the push plate (10) respectively.

2. The geological sampling device for coalfield geological exploration according to claim 1, characterized in that: The support (1) includes a vertical plate (12) and a support leg (13). The movable frame (2) is slidably disposed on one side of the vertical plate (12). The other side of the vertical plate (12) is rotatably connected to a support wheel (14). The support leg (13) includes a first support block (15) and a second support block (16) symmetrically disposed at the bottom of the vertical plate (12). The ends of the first support block (15) and the second support block (16) are provided with conical blocks (17). The top of the vertical plate (12) is provided with a handle (18).

3. A geological sampling device for coalfield geological exploration according to claim 2, characterized in that: The vertical plate (12) is rotatably connected to an output shaft (19) and a driven shaft (20). The output shaft (19) is provided with a first spiral bevel gear (21), and the driven shaft (20) is provided with a second spiral bevel gear (22) that meshes with the first spiral bevel gear (21). The vertical plate (12) also includes a first sprocket (23) on the driven shaft (20), a second sprocket (24) rotatably provided on the vertical plate (12), and a chain (25) sleeved on the outside of the first sprocket (23) and the second sprocket (24). The chain (25) is connected to the movable frame (2).

4. A geological sampling device for coalfield geological exploration according to claim 3, characterized in that: The output shaft (19) has a turntable (26) at its end, an assist block (27) on the turntable (26), a slide groove (28) on the assist block (27), a slider (29) slidably connected to the slide groove (28), a column (30) on the slider (29), and an output motor (31) on the vertical plate (12). The movable end of the output motor (31) has a swing arm (32), and the swing arm (32) has an inclined groove (33) slidably connected to the column (30). A first spring (34) is provided between the slider (29) and the assist block (27).

5. A geological sampling device for coalfield geological exploration according to claim 3, characterized in that: The vertical plate (12) is rotatably connected to a third rotating shaft (35) connected to a second sprocket (24). A limiting wheel (36) is keyed to the third rotating shaft (35). A cam (37) is provided on one side of the second sprocket (24). A plurality of first limiting grooves (38) are provided on the cam (37). A limiting block (39) is provided on one side of the limiting wheel (36) and slides in contact with the first limiting grooves (38).

6. A geological sampling device for coalfield geological exploration according to claim 5, characterized in that: A conical wheel (40) is provided on one side of the limiting wheel (36), and a conical surface (41) is provided on the side of the conical wheel (40). A release block (42) is slidably connected on the support leg (13). A groove (43) is provided at one end of the release block (42). A first inclined surface (44) that contacts the conical surface (41) is provided on both sides of the groove (43). A roller (45) is rotatably connected to the other end of the release block (42). The roller (45) extends to the outside of the support leg (13). A second spring is provided between the conical wheel (40) and the support leg (13).

7. A geological sampling device for coalfield geological exploration according to claim 6, characterized in that: The vertical plate (12) is rotatably connected to several support rods (46) that are rotatably connected to the second support (16). The first support (15) and the second support (16) are respectively rotatably connected to a first connecting rod (47) and a second connecting rod (48). It also includes an inverted U-shaped seat (49). The inverted U-shaped seat (49) is provided with a fourth rotating shaft (50) that is rotatably connected to the first connecting rod (47) and the second connecting rod (48). The upper side of the first connecting rod (47) and the second connecting rod (48) is in contact with the inverted U-shaped seat (49). The roller (45) is located between the first support (15) and the second support (16).

8. A geological sampling device for coalfield geological exploration according to claim 7, characterized in that: The inverted U-shaped seat (49) is provided with limiting rods (51) on both sides. A second inclined surface (52) is provided on one side of the end of the limiting rod (51). The first connecting rod (47) and the second connecting rod (48) are provided with a second limiting groove (53) and a third limiting groove (54) that are in contact with the second inclined surface (52). A plurality of first protrusions (55) are provided at one end of the limiting rod (51). A plurality of fourth limiting grooves (56) that are in sliding contact with the first protrusions (55) are provided on the inverted U-shaped seat (49). A plurality of L-shaped blocks (57) are provided on the inverted U-shaped seat (49). A third spring (58) is provided between the L-shaped block (57) and the first protrusion (55).

9. A geological sampling device for coalfield geological exploration according to claim 8, characterized in that: The end of the limiting rod (51) is provided with a first arc groove (59). A plurality of first connecting blocks (60) and second connecting blocks (61) are rotatably connected to the first connecting rod (47) and the second connecting rod (48). The end of the first connecting block (60) is provided with a first arc block (62) that is slidably connected to the first arc groove (59). A fourth spring (63) is provided between the first connecting block (60) and the first connecting rod (47). The end of the first connecting rod (47) is provided with a second arc block (64). The two sides of the second arc block (64) are respectively provided with a third inclined surface (65). After the third inclined surface (65) contacts the second connecting rod (48), it drives the first connecting block (60) to slide on the first connecting rod (47). One side of the second connecting block (61) is provided with a second arc groove (66) that is slidably connected to the second arc block (64). The other side of the second connecting block (61) is provided with a third arc block (67) that is slidably connected to the first arc groove (59).

10. The method of using a geological sampling device for coalfield geological exploration according to claim 1, characterized in that: Includes the following steps: S1. First, align several fixed blocks (5) with the first vertical groove (7) on the corresponding sampling tube (6). Then, move the movable frame (2) downward on the bracket (1) to drive the drill rod (3) downward. Since the first vertical groove (7) extends to the outside, the fixed block (5) on the driven wheel (4) slides smoothly into the first vertical groove (7) until the fixed block (5) moves to the bottom of the first vertical groove (7). Then, the push plate (10) moves downward so that it contacts the sampling tube (6) and the driven wheel (4) at the same time. At the same time, the top of the sampling tube (6) slides into the positioning groove (11) on the push plate (10) to achieve the positioning of the sampling tube (6) and the drill rod (3). S2. As the slide plate (68) with several second protrusions (69) contacts the end of the sampling tube (6), the resistance generated when the drill rod (3) is further lowered causes the slide plate (68) to slide on the drill rod (3) and compress the fifth spring (74) between the push plate (10) and the slide plate (68). Then, the drill rod (3) is driven to rotate on the movable frame (2), which drives the fixed block (5) to rotate relative to the sampling tube (6). This causes the fixed block (5) to slide from the first vertical groove (7) into the second vertical groove (8) through the horizontal groove (9). After the drill rod (3) is further driven to rotate, the resistance generated by the contact between the side of the fixed block (5) and the second vertical groove (8) restricts the sampling tube. (6) Rotate relative to the drill rod (3), so that the drill rod (3) drives the sampling tube (6) to rotate together. At the same time, the slide plate (68) is provided with several second protrusions (69) corresponding to the fixing groove (70) provided at the end of the sampling tube (6). Under the action of the rebound force generated after the fifth spring (74) is compressed, the slide plate (68) is driven to slide on the drill rod (3), so that the second protrusions (69) enter into the fixing groove (70). The resistance generated after the two come into contact further restricts the sampling tube (6) from rotating on the drill rod (3). In conjunction with the push plate (10), the sampling tube (6) is restricted from moving up and down relative to the drill rod (3), so as to realize the installation of the sampling tube (6) on the drill rod (3). S3. Rotate the drill rod (3) and drive the movable frame (2) to move downward on the support (1), so that the tip of the sampling tube (6) is rotated and inserted into the coal and rock sample. Under the action of mutual squeezing of the coal and rock samples, the coal and rock sample enters the sampling tube (6) and the coal and rock sample is sampled and collected. S4. After obtaining the coal sample, the movable frame (2) is moved upward on the support (1), which drives the drill rod (3) to move upward. The second nut (72) contacts the sliding plate (68), and the resulting force drives it to move upward relative to the push plate (10), so that the second protrusion (69) slides out of the fixed groove (70). Then, the third nut (73) contacts the driven wheel (4), which drives the driven wheel (4) to move upward, so that the fixed block (5) moves from the bottom of the second vertical groove (8) to the top. The resistance generated after the fixed block (5) contacts the second vertical groove (8) restricts the movement of the sampling tube (6) relative to the drill rod (3), thereby pulling the sampling tube (6) upward until the sampling tube (6) is pulled out of the coalfield. S5. Finally, move the sampling tube (6) to a flat surface. By moving the drill rod (3) downward and rotating the drill rod (3) in the opposite direction, the fixed block (5) moves from the second vertical groove (8) to the first vertical groove (7) through the horizontal groove (9). Then, move the drill rod (3) upward so that the fixed block (5) slides out of the first vertical groove (7), thereby separating the drill rod (3) and the sampling tube (6) and realizing the exploration and sampling of the coalfield geology.

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