Coal field geological exploration geological sampling device and method of use

Abstract

The application discloses a geological sampling device for coalfield geological exploration and a use method, and mainly relates to the technical field of exploration sampling. The device comprises a support, a movable frame slidingly arranged on the support, a drill rod rotationally connected to the movable frame, a driven wheel slidingly connected to the end of the drill rod, a plurality of fixing blocks arranged on the side of the driven wheel, a sampling tube sleeved on the outer side of the drill rod, a first vertical groove and a second vertical groove arranged on the sampling tube respectively, a horizontal groove communicating with the bottom of the first vertical groove and the second vertical groove, the first vertical groove extending to the outer side, the fixing blocks sequentially slidingly contacting the first vertical groove, the second vertical groove and the horizontal groove, a push plate slidingly connected to the drill rod and contacting the sampling tube and the driven wheel, and a positioning groove on the push plate slidingly contacting the drill rod. The device has the advantages that the problems of low installation and dismounting efficiency of the drill rod and the sampling tube are solved, and the efficiency and effect of the coalfield 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 research 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 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:

[0007] 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.

[0008] 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.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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 the inverted U-shaped seat is provided with a fourth rotating shaft rotatably connected with the first connecting rod and the second connecting rod.

[0014] Further, the two sides of the inverted 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 inverted U-shaped seat is provided with a plurality of fourth limiting grooves in sliding contact with the first protrusions, the inverted U-shaped seat is provided with a plurality of L-shaped blocks, and the L-shaped blocks and the first protrusions are provided with a third spring.

[0015] 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 a third inclined surface, the third inclined surface is in contact with the second connecting rod, thereby driving 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.

[0016] A use method of a geological sampling device for coal field geological exploration, comprising the following steps:

[0017] S1, a plurality of fixing blocks are correspondingly arranged in the first vertical grooves on the corresponding sampling pipes, then the movable frame is moved downward on the support, thereby driving the drill rod to move downward, since the first vertical grooves extend to the outside, the fixing blocks arranged on the driven wheels are smoothly slid into the first vertical grooves, until the fixing blocks move to the bottom of the first vertical grooves, then the push plate is moved downward, so as to be in contact with the sampling pipe and the driven wheel at the same time, meanwhile, the top end of the sampling pipe is slid into the positioning groove arranged on the push plate, thereby realizing the positioning of the sampling pipe and the drill rod;

[0018] 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 after the drill rod is further rotated, the resistance generated due to the contact between the side surface of the fixed block and the second vertical slot limits the rotation of the sampling tube relative to the drill rod, so that the drill rod drives the sampling tube to rotate together, and the second protrusion on the slide plate is in corresponding relationship with the fixed groove arranged at the end of the sampling tube, and under the action of the elastic force generated after the compression of the fifth spring, the slide plate is driven to slide on the drill rod, so that the second protrusion enters the fixed groove, and the resistance generated after the contact between the two further limits the rotation of the sampling tube on the drill rod, and the push plate limits the upward and downward movement of the sampling tube relative to the drill rod, so that the sampling tube is installed on the drill rod;

[0019] S3, the drill rod is rotated, and the movable frame is driven to move downward on the support, so that the tip of the sampling tube is inserted into the coal rock sample in rotation, and under the action of the mutual extrusion of the coal rock sample, the coal rock sample enters the sampling tube, and the coal rock sample is sampled and collected;

[0020] 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 of the second vertical slot to the top, and the resistance generated after the contact between the fixed block and 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;

[0021] 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.

[0022] Compared with the prior art, the beneficial effects of the present application are as follows:

[0023] 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;

[0024] 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;

[0025] 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 during 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;

[0026] 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 coalfield geological exploration sampling 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

[0027] ATTACHMENT Figure 1 It is a structural schematic view of the sampling tube.

[0028] ATTACHMENT Figure 2 It is a structural schematic view of the drill rod.

[0029] Figure 1 is a structural schematic diagram of the fixed block of the present application. Figure 3

[0030] Figure 2 is a structural schematic diagram of the output shaft of the present application. Figure 4

[0031] Figure 3 is a structural schematic diagram of the limiting wheel of the present application. Figure 5

[0032] Figure 4 is a partial enlarged view of the A part in Figure 3. Figure 6 Figure 5 Figure 5 is a structural schematic diagram of the auxiliary block of the present application.

[0033] Figure 6 is a structural schematic diagram of the swing arm of the present application. Figure 7 Figure 7 is a structural schematic diagram of the inclined slot of the present application.

[0034] Figure 8 Figure 8 is a structural schematic diagram of the first connecting rod of the present application.

[0035] Figure 9 is a structural schematic diagram of the limiting rod of the present application. Figure 9 Figure 10 is a structural schematic diagram of the first connecting block of the present application.

[0036] Figure 10 Figure 11 is a structural schematic diagram of the second connecting block of the present application.

[0037] Figure 12 is a structural schematic diagram of the third connecting block of the present application. Figure 11 Figure 10 Figure 13 is a partial enlarged view of the B part in Figure 12.

[0038] Figure 14 is a structural schematic diagram of the fourth connecting block of the present application. Figure 12 Figure 15 is a structural schematic diagram of the fifth connecting block of the present application.

[0039] Figure 13 Figure 16 is a structural schematic diagram of the sixth connecting block of the present application.

[0040] Reference signs in the drawings:

[0041] 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;

[0042] 12, vertical plate; 13, supporting leg; 14, supporting wheel; 15, first supporting pier; 16, second supporting pier; 17, conical block; 18, handle;

[0043] 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, turntable; 27, auxiliary block; 28, sliding groove; 29, sliding block; 30, stand; 31, output motor; 32, swing arm; 33, inclined slot; 34, first spring;

[0044] ​​​​​​​​35, third rotating shaft; 36, limiting wheel; 37, cam; 38, first limiting groove; 39, limiting block; 40, conical wheel; 41, conical surface; 42, releasing block; 43, groove; 44, first inclined surface; 45, roller;

[0045] 46, supporting rod; 47, first connecting rod; 48, second connecting rod; 49, inverted U-shaped seat; 50, fourth rotating shaft; 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;

[0046] 68, sliding plate; 69, second protrusion; 70, fixing groove; 71, first nut; 72, second nut; 73, third nut; 74, fifth spring. DETAILED DESCRIPTION

[0047] The application will be further described below in connection with specific embodiments. It should be understood that these embodiments are only used to illustrate the application and not used to limit the scope of the application. Furthermore, it should be understood that those skilled in the art can make various modifications or changes to the application after reading the content of the application, and these equivalent forms also fall within the scope defined by the application.

[0048] The application provides a geological sampling device for coal geological exploration, as shown in the drawings, comprising a support 1, a movable frame 2 slidingly arranged on the support 1, and a drill rod 3 rotatably connected to the movable frame 2. Figures 1-3 The movable frame 2 is provided with a speed reducer, and the movable end of the speed reducer is connected with the drill rod 3 to provide power for the rotation of the drill rod 3 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 rock sample, and under 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.

[0049] 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;

[0050] 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 cooperates to limit the upward and downward movement of the sampling tube 6 relative to the drill rod 3, achieving the installation of the sampling tube 6 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;

[0051] 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;

[0052] Finally, the sampling tube 6 is moved to a flat 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, achieving 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. In addition, the above operation steps for disassembling the sampling tube 6 do not need to remove the connection by turning the bolt, simplifying the operation steps for disassembling the sampling tube 6, and further improving the efficiency of the coalfield exploration sampling.

[0053] Preferred, such as Figure 1 and Figure 2 As shown, the support 1 includes a vertical plate 12 and support legs 13. The movable frame 2 is slidably disposed on one side of the vertical plate 12, and a support wheel 14 is rotatably connected to the other side of the vertical plate 12. The support legs 13 include a first support 15 and a second support 16 symmetrically disposed at the bottom of the vertical plate 12. The ends of the first support 15 and the second support 16 are each provided with a conical block 17. The top of the vertical plate 12 is provided with a handle 18. When finding a suitable sampling point, first use the support wheel 14 as a fulcrum, and pull down the handle 18 to make sampling. The device is tilted so that the contact point between the sampling device and the ground is the support wheel 14, which reduces the friction between the sampling device and the ground and makes it easier to push the sampling device. Then, the sampling device is moved by pushing the handle 18 to move the sampling device to a suitable sampling point. Then, the handle 18 is pushed in the opposite direction so that the support leg 13 makes contact with the ground again. The cone-shaped blocks 17 provided by the two first support blocks 15 and the two second support blocks 16 are inserted into the ground to fix the sampling device at the sampling point, which facilitates subsequent exploration and sampling of the coalfield geology.

[0054] Preferred, such as Figure 4 , Figure 7 , Figure 8 and Figure 9 As shown, an output shaft 19 and a driven shaft 20 are rotatably connected to the vertical plate 12. The output shaft 19 is equipped with a first spiral bevel gear 21, and the driven shaft 20 is equipped with a second spiral bevel gear 22 that meshes with the first spiral bevel gear 21. The system also includes a first sprocket 23 mounted on the driven shaft 20, a second sprocket 24 rotatably mounted 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 and drives the first spiral bevel gear 21 to rotate via the output shaft 19. The second spiral bevel gear 22, in turn, transmits torque to drive the driven wheel 4 to rotate. The first sprocket 23 rotates on the vertical plate 12, thereby driving the chain 25 sleeved on the outside of the first sprocket 23 and the second sprocket 24 to move. This causes the movable frame 2 set on the chain 25 to move downward, driving the sampling tube 6 fixed on the drill rod 3 to press down. In conjunction with the drill rod 3 driving the sampling tube 6 to rotate, the exploration and sampling of the coalfield geology is realized, which facilitates the guidance of subsequent geological exploration and coalfield production work. In addition, by controlling the gear 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, thereby better controlling the downward pressing rate of the drill rod 3 and improving the effect of coalfield geological exploration and sampling.

[0055] Preferred, such as 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 pipe 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.

[0056] 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 pipe 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 pipe 3 to knock and damage.

[0057] 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, facilitating the subsequent movement of the movable frame 2 on the bracket 1, driving the sampling tube 6 to press down, realizing 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 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, ensuring that the movable frame 2 is stably fixed on the bracket 1 during the process of transferring the sampling device, avoiding the sudden drop of the movable frame 2, causing the knocking damage of the drill pipe 3.

[0058] 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.

[0059] 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 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 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.

[0060] 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, the third inclined surfaces 65 are in contact with the second connecting rod 48 to drive 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-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 is in contact with the first arc-shaped slot 59 provided at the end of the limiting rod 51, the torque generated drives 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 is in contact with the second arc-shaped slot 66, and the third arc-shaped block 67 is rotated together to be in contact with the first arc-shaped slot 59 provided at the other limiting rod 51, the torque generated drives 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 branch pier 16, and improving the efficiency of coal field geological exploration sampling.

[0061] 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:

[0062] 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 to drive 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 to be 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 to realize the positioning of the sampling pipe 6 and the drill rod 3;

[0063] S2, by the sliding plate 68 is provided with a plurality of second protrusions 69 and the end of the sampling tube 6 contact, further down the drill pipe 3, the resistance generated by the sliding plate 68 on the drill pipe 3 sliding, and compression push plate 10 and sliding plate 68 between the fifth spring 74, then drive drill pipe 3 in the movable frame 2 rotation, drive block 5 relative to the sampling tube 6 rotation, so that the fixed block 5 by the first vertical slot 7 from the horizontal slot 9 into the second vertical slot 8, further drive drill pipe 3 rotation, because the fixed block 5 side and the second vertical slot 8 contact, the resistance generated by the sampling tube 6 relative to the drill pipe 3 rotation, so that the drill pipe 3 drive sampling tube 6 together with the rotation, while the sliding plate 68 is provided with a plurality of second protrusions 69 and the end of the sampling tube 6 set up corresponding fixed groove 70, and in the fifth spring 74 compression after the spring back force, drive sliding plate 68 on the drill pipe 3 sliding, so that the second protrusions 69 into the fixed groove 70, the resistance generated by the contact between the two further limit sampling tube 6 on the drill pipe 3 rotation, with push plate 10 limit sampling tube 6 relative to the drill pipe 3 up and down movement, realize the sampling tube 6 on the drill pipe 3 installation, without using bolts to fix, further simplify the operation steps of the sampling tube 6, improve the efficiency of the coal geological exploration sampling, at the same time there is no connection lost problem, further improve the efficiency of the coal geological exploration sampling;

[0064] S3, rotate the drill pipe 3, and drive the movable frame 2 on the support 1 down, so that the sampling tube 6 tip rotates 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;

[0065] S4, after obtaining the coal sample, move the movable frame 2 up on the support 1, drive the drill pipe 3 up, through the second nut 72 first sliding plate 68 contact, the resulting force drive its relative to the push plate 10 up, so that the second protrusions 69 from the fixed groove 70, then through the third nut 73 and the driven wheel 4 contact, drive the driven wheel 4 up, so that the fixed block 5 from the bottom of the second vertical slot 8 to the top, and through the resistance generated by the contact between the fixed block 5 and the second vertical slot 8, limit the sampling tube 6 relative to the drill pipe 3 movement, so as to pull up the sampling tube 6, 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 broken in the middle, further improve the efficiency of the coal geological exploration sampling;

[0066] 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.

[0067] Embodiment 1

[0068] 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 slots 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 groove 11 provided on the push plate 10, realizing the positioning of the sampling tube 6 and the drill pipe 3;

[0069] 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 slides from the first vertical slot 7 into the second vertical slot 8 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 slots 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 slides on the drill pipe 3, so that the second protrusions 69 enter the fixed slots 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;

[0070] Further 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 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;

[0071] After the coal sample is obtained, the movable frame 2 is moved upward on the support 1, and the drill rod 3 is moved upward, the second nut 72 is first contacted with the sliding 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 rod 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 rod 3 and the sampling tube 6 during the process of pulling out the sampling tube 6, avoiding the connection between the drill rod 3 and the sampling tube 6 being broken in the middle of the way, and further improving the efficiency of sampling in coal field geological exploration;

[0072] 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 groove 8 to the first vertical groove 7 through the horizontal groove 9, then the drill rod 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 rod 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 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 sampling in coal field exploration.

[0073] Example 2

[0074] 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, the supporting wheel 14 is taken 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, and the sampling device is facilitated to be pushed subsequently, then the sampling device is moved by pushing the handle 18, and the sampling device is moved to a suitable sampling point;

[0075] After the suitable site is found, then the handle 18 is 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;

[0076] When the 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.

[0077] In addition, when the resistance during the downward pressing of the sampling pipe 6 is large, the resistance during the rotation of the swing arm 32 to drive 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.

[0078] Example 3

[0079] 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 rotating 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 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 and re-enter the corresponding first limiting groove 38, and the resistance generated after the contact of the two 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 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 knocked and damaged.

[0080] Example 4

[0081] Based on 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 rotation of the second sprocket 24 on the vertical plate 12, thereby ensuring that the movable frame 2 is stably fixed on the support 1 during transportation, avoiding the sudden drop of the movable frame 2 and causing damage; 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 inverted U-shaped seat 49 is in contact with the first connecting rod 47 and the second connecting rod 48, limiting the further downward pressure 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;

[0082] 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.

[0083] 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, and without the need for additional operation steps, further improving the efficiency of coal field geological exploration sampling;

[0084] 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) slidingly arranged on the support (1), characterized in that, The movable frame (2) is rotationally connected with a drill rod (3), the end of the drill rod (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 tube (6) sleeved outside the drill rod (3), the sampling tube (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 rod (3) is slidably connected with a push plate (10) in contact with the sampling tube (6) and the driven wheel (4), the push plate (10) is provided with a positioning groove (11) in sliding contact with the drill rod (3), further comprising a sliding plate (68) slidably arranged on the drill rod (3), the sliding plate (68) is provided with a plurality of second protrusions (69), the end of the sampling tube (6) is provided with a plurality of fixed grooves (70) in sliding contact with the second protrusions (69), the drill rod (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 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) comprises a vertical plate (12) and a support leg (13), the movable frame (2) is slidably 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 support leg (13) comprises a first support pier (15) and a second support pier (16) symmetrically arranged at the bottom of the vertical plate (12), the end of the first support pier (15) and the second support pier (16) is provided with a tapered block (17), the top of the vertical plate (12) is provided with a handle (18).

3. The geological sampling device for coalfield geological exploration according to claim 2, characterized in that: 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) meshing 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).

4. The geological sampling device for coalfield geological exploration according to claim 3, characterized in that: The end of the output shaft (19) is provided with a rotating disc (26), the rotating disc (26) is provided with a power assisting block (27), the power assisting 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), and the sliding block (29) and the power assisting block (27) are provided with a first spring (34).

5. The geological sampling device for coalfield geological exploration according to claim 3, characterized in that: 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 journally 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), and one side of the limiting wheel (36) is provided with a limiting block (39) in sliding contact with the first limiting groove (38).

6. The geological sampling device for coalfield geological exploration according to claim 5, characterized in that: One side of the limiting wheel (36) is provided with a conical wheel (40), the side surface of the conical wheel (40) is provided with a conical surface (41), the supporting leg (13) is slidably connected with a releasing block (42), one end of the releasing 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 releasing block (42) is rotatably connected with a roller (45), the roller (45) extends to the outside of the supporting leg (13), and the conical wheel (40) and the supporting leg (13) are provided with a second spring.

7. The geological sampling device for coalfield geological exploration according to claim 6, characterized in that: The vertical plate (12) is rotatably connected with a plurality of supporting rods (46) rotatably connected with the second supporting column (16), the first supporting column (15) and the second supporting column (16) are respectively rotatably connected with a first connecting rod (47) and a second connecting rod (48), and further comprising an 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 sides of the first connecting rod (47) and the second connecting rod (48) are in contact with the inverted U-shaped seat (49), and the roller (45) is located between the first supporting column (15) and the second supporting column (16).

8. The geological sampling device for coalfield geological exploration according to claim 7, characterized in that: The inverted U-shaped seat (49) is provided with a limiting rod (51) on the two sides, 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 respectively 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), and the L-shaped blocks (57) and the first protrusions (55) are provided with a third spring (58).

9. The 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-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 slidably connected 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 surfaces (65) contact with 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 slidably connected 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 slidably connected with the first arc-shaped slot (59).

10. The method for using the geological sampling device for coalfield geological exploration according to claim 1, characterized in that: The method comprises the following steps: S1, a plurality of fixed blocks (5) are arranged on the first vertical slot (7) of the corresponding sampling pipe (6), then the movable frame (2) is moved downward on the support (1), and the drill rod (3) is driven to move downward, because the first vertical slot (7) extends to the outside, the fixed block (5) arranged 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 the push plate (10) 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) arranged on the push plate (10), so that the sampling pipe (6) is positioned with the drill rod (3); S2, the second protrusions (69) arranged on the sliding plate (68) are in contact with the end of the sampling pipe (6), when the drill rod (3) is further moved downward, the resistance generated by the further movement of the drill rod (3) drives the sliding plate (68) to slide on the drill rod (3), and the fifth spring (74) arranged between the push plate (10) and the sliding plate (68) is compressed, then the drill rod (3) is driven to rotate on the movable frame (2), the fixed block (5) is driven to rotate relative to the sampling pipe (6), so that the fixed block (5) is slid from the first vertical slot (7) into the second vertical slot (8) through the horizontal slot (9), and the drill rod (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 by the contact limits the rotation of the sampling pipe (6) relative to the drill rod (3), so that the drill rod (3) drives the sampling pipe (6) to rotate together, the second protrusions (69) arranged on the sliding plate (68) are arranged in the fixed slots (70) arranged on the end of the sampling pipe (6), and the spring-back force generated after the compression of the fifth spring (74) drives the sliding plate (68) to slide on the drill rod (3), so that the second protrusions (69) enter the fixed slots (70), the resistance generated after the contact of the two further limits the rotation of the sampling pipe (6) on the drill rod (3), and the push plate (10) limits the upward and downward movement of the sampling pipe (6) relative to the drill rod (3), so that the sampling pipe (6) is installed on the drill rod (3). S3, 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), and the coal rock sample is collected; S4, after obtaining the coal sample, move the movable frame (2) upward on the support (1), drive the drill pipe (3) to move upward, and the second nut (72) is first in contact with the sliding plate (68), the resulting component force drives the relative push plate (10) to move upward, so that the second protrusion (69) slides out of the fixed groove (70), then the third nut (73) is in contact with 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 groove (8), and the resistance generated after the fixed block (5) is in contact 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 from the coal field; S5, finally move the sampling tube (6) to the ground, move the drill pipe (3) downward, and rotate the drill pipe (3) in the opposite direction, 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 move the drill pipe (3) upward, so that the fixed block (5) slides out of the first vertical groove (7), so as to realize the separation of the drill pipe (3) and the sampling tube (6), and realize the exploration and sampling of the coal field geology.

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