Sampling device and method for tunnel geological exploration with in-hole imaging technology

Abstract

The invention relates to the technical field of geological exploration, and discloses a sampling device and method for tunnel geological exploration with an in-hole imaging technology, the sampling device comprises a bottom plate, the top end of the bottom plate is fixedly provided with a fixed block, the middle part of the fixed block is rotatably connected with a rotating rod, and the middle part of the rotating rod is fixedly provided with a supporting rod; a rubber block is fixedly mounted on the front side of the top end of the bottom plate, and a moving rod is slidably connected to the middle of the rubber block. A first rack is driven to move leftwards in the process that a supporting rod rotates rightwards, a second spring is compressed, when a soil sample is taken out, due to the fact that a sampling barrel moves to press a stop block to move downwards and unlock a stop piece, a second rack is driven to move through the elasticity of the second spring, and then a first gear ring is driven to rotate; and finally, through periodic meshing of an incomplete gear II and a rack III, a knocking rod can realize front-back reciprocating motion, so that the sampling barrel is automatically knocked when the sampling barrel is moved, and a soil sample is conveniently taken out.

Description

Technical Field

[0001] The present invention relates to the field of geological exploration technology, and more specifically, to a sampling device and method for tunnel geological exploration with in-hole imaging technology. Background Art

[0002] Before tunnel construction, geological survey is required. After sampling the construction area, the samples are analyzed. The existing sampling device uses a sampling drill to sample the soil. However, after sampling, since the soil exists in the sampling drill, the operator needs to continuously strike the sampling drill to take out the soil sample, which is laborious. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides a sampling device and method for tunnel geological exploration with in-hole imaging technology, which has the advantage of being easy to take out soil samples.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sampling device for tunnel geological exploration with in-hole imaging technology, comprising a base plate, a fixed block is fixedly installed on the top of the base plate, a rotating rod is rotatably connected in the middle of the fixed block, a support rod is fixedly installed in the middle of the rotating rod, a rubber block is fixedly installed on the front side of the top of the base plate, a moving rod is slidably connected in the middle of the rubber block, a rack is provided on the left side of the moving rod, a yield component is provided at the bottom end of the rack, an incomplete gear is fixedly installed on the front end of the rotating rod, an opening component is fixedly installed on the right end of the moving rod, and a knocking component is fixedly installed on the right side of the yield component.

[0005] As a preferred technical solution of the present invention, the yield assembly includes a fixed frame, which is fixedly installed on the left side of the moving rod, a telescopic rod and a spring 1 are fixedly installed on the bottom end of the fixed frame, the rack 1 is fixedly installed on the top of the telescopic rod and the spring 1, and a pressure plate is fixedly installed on the bottom end of the support rod.

[0006] As a preferred technical solution of the present invention, the opening assembly includes a baffle, which is fixedly installed on the right end of the moving rod, a fixing plate is fixedly installed on the top surface of the base plate, a second spring is fixedly installed between the fixing plate and the baffle, a baffle is movably connected to the bottom end of the base plate, and a third spring is fixedly installed between the bottom end of the baffle and the base plate.

[0007] As a preferred technical solution of the present invention, the knocking assembly includes a second rack, the second rack is fixedly installed at the right end of the baffle, the right end of the bottom plate is rotatably connected with a first toothed ring, the top end of the first toothed ring is fixedly installed with an incomplete second gear, the top surface of the bottom plate is fixedly installed with a support frame, the top end of the support frame is slidably connected with a knocking rod, the front end of the knocking rod is fixedly installed with a third rack, and the third rack meshes with the incomplete second gear.

[0008] As a preferred technical solution of the present invention, a water tank is fixedly installed at the top end of the bottom plate, a moving plate is slidably connected in the inner cavity of the water tank, a one-way water inlet pipe and a one-way water outlet pipe are fixedly installed at the rear end of the water tank, the one-way water inlet pipe is connected to the spaces on the left and right sides of the water tank where the moving plate is located, the rear end of the rotating rod is fixedly installed with a second toothed ring, the bottom end of the second toothed ring meshes with a fourth rack, the right end of the fourth rack is fixedly connected with the moving plate, and a spray head is fixedly installed at the top end of the support rod.

[0009] As a preferred technical solution of the present invention, the support rod is located behind the knocking rod, and the left end of the one-way water outlet pipe is inserted into the rear end of the rotating rod and rotatably connected to the rear end of the rotating rod.

[0010] As a preferred technical solution of the present invention, an installation frame is fixedly installed at the top end of the bottom plate, a first motor is fixedly installed at the right end of the installation frame, the output end of the first motor is fixedly sleeved with a lead screw, a meshing frame is meshed on the surface of the lead screw, a second motor is fixedly installed on the right side of the meshing frame, and the output end of the second motor is detachably connected with a sampling cylinder through a pin.

[0011] As a preferred technical solution of the present invention, a borehole imaging device is fixedly installed at the top end of the bottom plate, and the borehole imaging device includes a data processor and a camera located on the left side of the data processor.

[0012] As a preferred technical solution of the present invention, the front side of the second rack meshes with the rear side of the first toothed ring, the right side of the top end of the block is an inclined surface, the top of the front end of the block is located inside the bottom plate, and the top of the rear end of the block is located above the bottom plate.

[0013] A sampling method for a sampling device for tunnel geological exploration with borehole imaging technology includes the following steps:

[0014] Push the device to the position where sampling is required, start the second motor and the first motor. The second motor drives the sampling cylinder to rotate, and the first motor drives the lead screw to rotate, so that the meshing frame meshing on the surface of the lead screw moves leftward, and the meshing frame drives the sampling cylinder to move leftward, so that the sampling cylinder rotates and horizontally inserts into the soil, and then samples the soil. After sampling, the first motor reverses to take the sampling cylinder out of the soil;

[0015] Then remove the sampling cylinder from the output end of motor 2, and then insert the sampling cylinder into the top end of the support rod. At this time, since there is a sample in the sampling cylinder, the sampling cylinder cannot slide up and down directly on the support rod. Rotate the support rod 90 degrees to the right to make the sampling cylinder lie flat on the bottom plate. During the rotation of the support rod, gear ring 2 and incomplete gear 1 respectively drive rack 4 and rack 1 to move left. When rack 4 moves to the left, the movable plate can be pulled to the left in the water tank to increase the space on the right side of the movable plate and draw the water on the left side of the water tank into the right side of the movable plate. When the incomplete gear 1 rotates, it drives the movable rod to move to the left, so that the baffle compresses spring 2. When the sampling cylinder is laid flat, the baffle is located at the left end of the front side of the baffle block. At this time, the baffle block jams the baffle and presses the plate at the same time. The first gear is pressed on the rack to move down, thereby separating the first gear from the incomplete gear. At this time, the sampling tube is pushed to the left, so that the sampling tube presses down the block on the rear side. At this time, the block on the front side loses its blocking effect on the blocking piece, and the second spring in the compressed state drives the moving rod to move right under the action of elasticity. However, due to the friction between the rubber block and the moving rod, the moving rod moves right slowly. When the moving rod moves to the right, it can drive the second gear to move, thereby driving the ring gear to rotate, and finally driving the incomplete gear two to rotate. Through the respective engagement of the incomplete gear two and the two racks three, it can be realized to drive the knocking rod to move back and forth. When the knocking rod moves back to contact the sampling tube, it can knock on the sampling tube, thereby assisting in taking out the soil in the sampling tube.

[0016] After the soil in the sampling tube is completely taken out, the support rod is rotated in the opposite direction. At this time, the rotation of the support rod drives the rack 1 and the rack 4 to move rightward. During this process, the rack 4 drives the moving plate to move rightward, and the water on the right side of the moving plate is squeezed into the support rod through the one-way water outlet pipe, and finally sprayed into the inner cavity of the sampling tube through the nozzle to clean the inner wall of the sampling tube;

[0017] After cleaning, remove the sampling tube, then rotate the support rod to the left so that the teeth of the incomplete gear 1 are offset from the rack 1. At this time, spring 2 will drive the moving rod to reset. After resetting, place the support rod to a vertical state. Since there is water on both sides of the moving plate at this time, the movement of the moving plate in the water tank is hindered. If the support rod does not move, the moving plate will not move, and the support rod can remain in a vertical state.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the process of the support rod rotating to the right, the first rack is driven to move leftward, compressing the second spring. When taking out the soil sample, since the movement of the sampling cylinder presses the stop block downward, unlocking the stop piece, the second rack is driven to move by the elasticity of the second spring, and then the first gear ring is driven to rotate. Finally, through the periodic meshing of the incomplete second gear and the third rack, the knocking rod can perform reciprocating motion back and forth, so as to realize that when the sampling cylinder is moved, the sampling cylinder is automatically knocked, facilitating the extraction of the soil sample.

[0020] 2. In the process of the support rod rotating downward, the second gear ring is driven to drive the fourth rack to move, realizing that the fourth rack drives the moving plate to move leftward, pumping the water in the left side of the inner cavity of the water tank located on the left side of the moving plate into the right side of the moving plate. When the support rod rotates upward, the moving plate moves rightward, squeezing the water on the right side of the moving plate into the one-way water outlet pipe, entering the spray head through the rotating rod and the support rod, and finally spraying it into the inner cavity of the sampling cylinder through the spray head, realizing the cleaning of the sampling cylinder when the sampling cylinder is taken out.

[0021] 3. By equipping with imaging equipment, since the imaging equipment includes a camera and a data processor, after sampling, the camera of the in-hole imaging equipment can be placed in the sampling hole, and then placed at the sampling position. The camera can collect images of the hole, and the collected images are transmitted to the data processor, where the geology in the sampling hole can be analyzed and processed. When the sampling progress reaches a depth of 20 - 25 meters, the camera is used to investigate the construction situation in the sampling hole, observing the surrounding rock conditions, such as the roundness of the borehole wall, the lithology, color, development of joint fissures, water inflow, hole collapse, hole enlargement, etc. Combining with the original record of the advanced horizontal drilling and the revealed surrounding rock state, the geology revealed by this advanced horizontal drilling is analyzed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 is a schematic diagram of the connection of the support rod of the structure of the present invention;

[0024] Figure 3 is a schematic sectional view of the water tank of the structure of the present invention;

[0025] Figure 4 is a schematic sectional view of the bottom plate of the structure of the present invention;

[0026] Figure 5 is the present invention Figure 4 magnified schematic diagram at A in;

[0027] Figure 6 is the present invention Figure 4 magnified schematic diagram at B in.

[0028] In the figure: 1, bottom plate; 2, fixed block; 3, rotating rod; 4, supporting rod; 5, rubber block; 6, moving rod; 7, fixed frame; 8, rack one; 9, telescopic rod; 10, spring one; 11, incomplete gear one; 12, baffle; 13, rack two; 14, spring two; 15, fixed plate; 16, gear ring one; 17, incomplete gear two; 18, supporting frame; 19, knocking rod; 20, rack three; 21, water tank; 22, moving plate; 23, one-way water inlet pipe; 24, one-way water outlet pipe; 25, gear ring two; 26, rack four; 27, nozzle; 28, pressure plate; 29, baffle; 30, spring three; 31, mounting frame; 32, motor one; 33, lead screw; 34, meshing frame; 35, motor two; 36, sampling tube; 37, in-hole imaging equipment. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figures 1 to 6 As shown, the present invention provides a sampling device for tunnel geological exploration with in-hole imaging technology, comprising a bottom plate 1, a fixed block 2 is fixedly installed on the top of the bottom plate 1, a rotating rod 3 is rotatably connected to the middle of the fixed block 2, a support rod 4 is fixedly installed on the middle of the rotating rod 3, a rubber block 5 is fixedly installed on the front side of the top of the bottom plate 1, a moving rod 6 is slidably connected to the middle of the rubber block 5, a rack 8 is provided on the left side of the moving rod 6, a yielding assembly is provided at the bottom end of the rack 8, an incomplete gear 11 is fixedly installed on the front end of the rotating rod 3, an opening assembly is fixedly installed on the right end of the moving rod 6, and a knocking assembly is fixedly installed on the right side of the yielding assembly;

[0031] By driving the rack 1 8 to move leftward while the support rod 4 rotates to the right, the spring 2 14 is compressed. When taking out the soil sample, the movement of the sampling barrel 36 presses the stopper 29 to move downward, unlocking the stopper 12, and the elasticity of the spring 2 14 drives the rack 2 13 to move, thereby driving the gear ring 1 16 to rotate. Finally, through the periodic engagement of the incomplete gear 2 17 and the rack 3 20, the knocking rod 19 can realize reciprocating motion back and forth, thereby realizing automatic knocking of the sampling barrel 36 when the sampling barrel 36 is moved, so as to facilitate the taking out of the soil sample.

[0032] The yielding assembly includes a fixed frame 7, which is fixedly mounted on the left side of the moving rod 6, a telescopic rod 9 and a spring 10 are fixedly mounted on the bottom end of the fixed frame 7, a rack 8 is fixedly mounted on the top of the telescopic rod 9 and the spring 10, and a pressing plate 28 is fixedly mounted on the bottom end of the support rod 4;

[0033] When the support rod 4 rotates ninety degrees, the support rod 4 will drive the pressure plate 28 to rotate ninety degrees, so that the pressure plate 28 is pressed on the rack 8, pressing the rack 8 downward, so that the rack 8 is separated from the incomplete gear 11. At this time, the spring 10 is in a compressed state, so that in the process of the moving rod 6 moving right, interference between the meshing of the rack 8 and the incomplete gear 11 is avoided, thereby ensuring the smooth operation of the device. After the support rod 4 rotates upward, the pressure plate 28 is separated from the rack 8. At this time, the spring 10 in a compressed state drives the rack 8 to reset under the action of elasticity.

[0034] The opening assembly includes a baffle 12, which is fixedly mounted on the right end of the moving rod 6, a fixing plate 15 is fixedly mounted on the top surface of the bottom plate 1, a spring 2 14 is fixedly mounted between the fixing plate 15 and the baffle 12, a baffle 29 is movably connected to the bottom end of the bottom plate 1, and a spring 30 is fixedly mounted between the bottom end of the baffle 29 and the bottom plate 1;

[0035] By setting the spring 214 and the block 29, when the moving rod 6 drives the block 12 to move to the left, the bottom end of the block 12 will contact the inclined surface of the top front end of the block 29, thereby pressing the block 29 downward. When the block 29 is offset from the block 12, the vertical surface on the left side of the block 29 will block the block 12, so that the block 12 cannot move to the right. In the process of taking out the soil sample, since the sampling tube 36 needs to be moved to the left, the left movement of the sampling tube 36 can press the top of the rear end of the block 29 downward, thereby driving the block 29 to move downward as a whole, so that the block 29 is located below the block 12, and the block 12 can move to the right at this time.

[0036] The knocking assembly includes a rack 2 13, which is fixedly mounted on the right end of the baffle 12, a gear ring 16 is rotatably connected to the right end of the bottom plate 1, an incomplete gear 2 17 is fixedly mounted on the top of the gear ring 16, a support frame 18 is fixedly mounted on the top surface of the bottom plate 1, a knocking rod 19 is slidably connected to the top of the support frame 18, a rack 3 20 is fixedly mounted on the front end of the knocking rod 19, and the rack 3 20 is meshed with the incomplete gear 2 17;

[0037] During the rightward movement of the second rack 13, it can drive the first gear ring 16 to rotate through meshing with the first gear ring 16. When the first gear ring 16 rotates, it drives the second incomplete gear 17 to rotate. Through the rotation of the second incomplete gear 17, the second incomplete gear 17 periodically meshes with the two third racks 20, thereby driving the third rack 20 and the knocking rod 19 to move back and forth periodically. Furthermore, during the process of driving the knocking rod 19 to move backward, it periodically knocks on the sampling cylinder 36.

[0038] Among them, a water tank 21 is fixedly installed at the top end of the bottom plate 1. A moving plate 22 is slidably connected to the inner cavity of the water tank 21. A one-way water inlet pipe 23 and a one-way water outlet pipe 24 are fixedly installed at the rear end of the water tank 21. The one-way water inlet pipe 23 is connected to the spaces on the left and right sides of the water tank 21 where the moving plate 22 is located. A second gear ring 25 is fixedly installed at the rear end of the rotating rod 3. A fourth rack 26 is meshed with the bottom end of the second gear ring 25. The right end of the fourth rack 26 is fixedly connected to the moving plate 22. A spray head 27 is fixedly installed at the top end of the support rod 4. The front side of the second rack 13 is meshed with the rear side of the first gear ring 16. The right side of the top end of the stop block 29 is an inclined surface. The top of the front end of the stop block 29 is located inside the bottom plate 1, and the top of the rear end of the stop block 29 is located above the bottom plate 1;

[0039] By driving the second gear ring 25 to drive the fourth rack 26 to move during the downward rotation of the support rod 4, the fourth rack 26 drives the moving plate 22 to move leftward, pumping the water in the left cavity of the water tank 21 where the moving plate 22 is located into the right side of the moving plate 22. When the support rod 4 rotates upward, the moving plate 22 moves rightward, squeezing the water on the right side of the moving plate 22 into the one-way water outlet pipe 24, entering the spray head 27 through the rotating rod 3 and the support rod 4, and finally spraying it into the inner cavity of the sampling cylinder 36 through the spray head 27, realizing the cleaning of the sampling cylinder 36 when the sampling cylinder 36 is taken out.

[0040] Among them, the support rod 4 is located at the rear side of the knocking rod 19. The left end of the one-way water outlet pipe 24 is inserted into the rear end of the rotating rod 3 and is rotatably connected to the rear end of the rotating rod 3;

[0041] Ensure that during the downward movement of the support rod 4, the sampling cylinder 36 can be placed flat on the rear side of the knocking rod 19. The rear end of the meshing frame 34 is inserted into the rotating rod 3, which can avoid interference with the one-way water outlet pipe 24 when the rotating rod 3 rotates.

[0042] Among them, an installation frame 31 is fixedly installed at the top end of the bottom plate 1. A first motor 32 is fixedly installed at the right end of the installation frame 31. A lead screw 33 is fixedly sleeved on the output end of the first motor 32. A meshing frame 34 is meshed with the surface of the lead screw 33. A second motor 35 is fixedly installed on the right side of the meshing frame 34. The output end of the second motor 35 is detachably connected to the sampling cylinder 36 through a pin;

[0043] Start the second motor 35 and the first motor 32. The second motor 35 drives the sampling cylinder 36 to rotate, and the first motor 32 drives the lead screw 33 to rotate, causing the engaging frame 34 engaged with the surface of the lead screw 33 to move leftward, so that the engaging frame 34 drives the sampling cylinder 36 to move leftward, and then the sampling cylinder 36 rotates and horizontally inserts into the soil to sample the soil. After the sampling is completed, the first motor 32 rotates in reverse to take the sampling cylinder 36 out of the soil. When encountering rocks in the soil, replace the sampling cylinder 36 with a diamond drill bit to ensure the sampling operation in the rock area.

[0044] Among them, an in-hole imaging device 37 is fixedly installed at the top of the bottom plate 1. The in-hole imaging device 37 includes a data processor and a camera located on the left side of the data processor;

[0045] By setting the in-hole imaging device 37, the camera of the in-hole imaging device 37 can be placed in the sampling hole after sampling. The camera is controlled to move by a flexible push rod. The geological conditions in the hole are photographed and recorded. Starting from the position of the advanced horizontal drilling hole mouth, put the camera in, and the terminal record length is reset to zero. Start pushing according to the notice of the terminal control personnel. When the flexible push rod pushes the camera, it should be kept slow and uniform to view the surrounding rock conditions of each section. The operator at the rear terminal, according to the in-hole conditions displayed on the monitor, records the position where the bad geology occurs and guides the operation of the pusher. When the sampling progress reaches a depth of 20 - 25 meters, use the camera to investigate the construction conditions in the sampling hole, observe the surrounding rock conditions, observe the roundness of the drilling hole wall, the lithology, color, joint fissure development, water outburst, hole collapse, hole enlargement, etc. of the surrounding rock, and combine the original record of the advanced horizontal drilling and the revealed surrounding rock state to analyze the geological conditions revealed by this advanced horizontal drilling.

[0046] A sampling method for a sampling device for tunnel geological exploration with in-hole imaging technology includes the following steps:

[0047] Push the device to the position where sampling is required, start the second motor 35 and the first motor 32. The second motor 35 drives the sampling cylinder 36 to rotate, and the first motor 32 drives the lead screw 33 to rotate, causing the engaging frame 34 engaged with the surface of the lead screw 33 to move leftward, so that the engaging frame 34 drives the sampling cylinder 36 to move leftward, and then the sampling cylinder 36 rotates and horizontally inserts into the soil to sample the soil. After the sampling is completed, the first motor 32 rotates in reverse to take the sampling cylinder 36 out of the soil;

[0048] Then remove the sampling tube 36 from the output end of the motor 2 35, and then insert the sampling tube 36 into the top end of the support rod 4. At this time, since there is a sample in the sampling tube 36, the sampling tube 36 cannot slide up and down directly on the support rod 4. The support rod 4 is rotated right by ninety degrees to make the sampling tube 36 lie flat on the bottom plate 1. During the rotation of the support rod 4, the gear ring 25 and the incomplete gear 1 11 respectively drive the rack 4 26 and the rack 1 8 to move left. When the rack 4 26 moves to the left, it can pull the moving plate 22 to the left in the water tank 21 to increase the space on the right side of the moving plate 22, and draw the water on the left side of the water tank 21 into the right side of the moving plate 22. When the incomplete gear 1 11 rotates, it drives the moving rod 6 to move to the left, so that the baffle 12 compresses the spring 2 14. When the sampling tube 36 is laid flat, the baffle 12 is located at the left end of the front side of the baffle 29. At this time, the baffle 29 clamps the baffle 12 and At the same time, the pressure plate 28 presses on the rack 1 8, so that the rack 1 8 moves downward, thereby realizing the separation of the rack 1 8 from the incomplete gear 1 1. At this time, the sampling tube 36 is pushed to the left, so that the sampling tube 36 presses the rear block 29 downward. At this time, the front block 29 loses the blocking of the blocking plate 12, and the spring 2 14 in the compressed state drives the moving rod 6 to move right under the action of elasticity. However, due to the friction between the rubber block 5 and the moving rod 6, the moving rod 6 is slowly moved to the right. When the moving rod 6 moves to the right, it can drive the rack 2 13 to move, thereby driving the gear ring 1 16 to rotate, and finally driving the incomplete gear 2 17 to rotate. Through the respective engagement of the incomplete gear 2 17 with the two racks 3 20, it can realize the driving of the knocking rod 19 to move back and forth. When the knocking rod 19 moves back to contact the sampling tube 36, it can knock the sampling tube 36, thereby assisting in taking out the soil in the sampling tube 36.

[0049] After the soil in the sampling tube 36 is completely taken out, the support rod 4 is rotated in the opposite direction. At this time, the rotation of the support rod 4 drives the rack 1 8 and the rack 4 26 to move rightward. During this process, the rack 4 26 drives the movable plate 22 to move rightward, and the water on the right side of the movable plate 22 is squeezed into the support rod 4 through the one-way water outlet pipe 24, and finally sprayed into the inner cavity of the sampling tube 36 through the nozzle 27 to clean the inner wall of the sampling tube 36.

[0050] After cleaning, remove the sampling tube 36, and then rotate the support rod 4 to the left so that the teeth of the incomplete gear 11 are offset from the rack 1 8. At this time, the spring 2 14 will drive the moving rod 6 to reset. After resetting, place the support rod 4 in a vertical state. Since there is water on both sides of the moving plate 22 at this time, the movement of the moving plate 22 in the water tank 21 is hindered. When the support rod 4 does not move, the moving plate 22 will not move, and the support rod 4 can remain in a vertical state.

[0051] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0052] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for tunnel geological exploration with in-hole imaging technology, comprising a bottom plate (1), characterized in that, A fixed block (2) is fixedly mounted on the top of the bottom plate (1), a rotating rod (3) is rotatably connected to the middle of the fixed block (2), a supporting rod (4) is fixedly mounted on the middle of the rotating rod (3), a rubber block (5) is fixedly mounted on the front side of the top of the bottom plate (1), a moving rod (6) is slidably connected to the middle of the rubber block (5), a rack (8) is provided on the left side of the moving rod (6), a yielding assembly is provided at the bottom end of the rack (8), an incomplete gear (11) is fixedly mounted on the front end of the rotating rod (3), an opening assembly is fixedly mounted on the right end of the moving rod (6), and a knocking assembly is fixedly mounted on the right side of the yielding assembly.

2. The sampling device for tunnel geological exploration with in-hole imaging technology according to claim 1, characterized in that, The yielding assembly comprises a fixed frame (7), wherein the fixed frame (7) is fixedly mounted on the left side of the moving rod (6), a telescopic rod (9) and a spring (10) are fixedly mounted on the bottom end of the fixed frame (7), the rack (8) is fixedly mounted on the top end of the telescopic rod (9) and the spring (10), and a pressure plate (28) is fixedly mounted on the bottom end of the support rod (4).

3. The sampling device for tunnel geological exploration with in-hole imaging technology according to claim 1, characterized in that, The opening assembly comprises a baffle (12), wherein the baffle (12) is fixedly mounted on the right end of the moving rod (6), a fixing plate (15) is fixedly mounted on the top surface of the bottom plate (1), a second spring (14) is fixedly mounted between the fixing plate (15) and the baffle (12), a baffle (29) is movably connected to the bottom end of the bottom plate (1), and a third spring (30) is fixedly mounted between the bottom end of the baffle (29) and the bottom plate (1).

4. The sampling device for tunnel geological exploration with in-hole imaging technology according to claim 3, characterized in that, The knocking assembly comprises a rack 2 (13), the rack 2 (13) being fixedly mounted on the right end of the baffle (12), the right end of the base plate (1) being rotatably connected to a gear ring 1 (16), the top end of the gear ring 1 (16) being fixedly mounted to an incomplete gear 2 (17), the top surface of the base plate (1) being fixedly mounted to a support frame (18), the top end of the support frame (18) being slidably connected to a knocking rod (19), the front end of the knocking rod (19) being fixedly mounted to a rack 3 (20), the rack 3 (20) being meshed with the incomplete gear 2 (17).

5. The sampling device for tunnel geological exploration with in-hole imaging technology according to claim 1, characterized in that, A water tank (21) is fixedly mounted on the top of the bottom plate (1), the inner cavity of the water tank (21) is slidably connected to a movable plate (22), a one-way water inlet pipe (23) and a one-way water outlet pipe (24) are fixedly mounted on the rear end of the water tank (21), the one-way water inlet pipe (23) is connected to the space on the left and right sides of the movable plate (22) of the water tank (21), a gear ring 2 (25) is fixedly mounted on the rear end of the rotating rod (3), a rack 4 (26) is meshed at the bottom end of the gear ring 2 (25), the right end of the rack 4 (26) is fixedly connected to the movable plate (22), and a spray head (27) is fixedly mounted on the top of the support rod (4).

6. The sampling device for tunnel geological exploration with in-hole imaging technology according to claim 5, characterized in that, The support rod (4) is located at the rear side of the knocking rod (19), and the left end of the one-way water outlet pipe (24) is inserted into the rear end of the rotating rod (3) and is rotatably connected to the rear end of the rotating rod (3).

7. The sampling device for tunnel geological exploration with in-hole imaging technology according to claim 1, characterized in that, A mounting frame (31) is fixedly installed at the top end of the bottom plate (1). A first motor (32) is fixedly installed at the right end of the mounting frame (31). A lead screw (33) is fixedly sleeved on the output end of the first motor (32). A meshing frame (34) is meshed with the surface of the lead screw (33). A second motor (35) is fixedly installed on the right side of the meshing frame (34). A sampling cylinder (36) is detachably connected to the output end of the second motor (35) through a pin.

8. The sampling device for tunnel geological exploration with in-hole imaging technology according to claim 1, characterized in that, An in-hole imaging device (37) is fixedly installed at the top end of the bottom plate (1). The in-hole imaging device (37) includes a data processor and a camera located on the left side of the data processor.

9. The sampling device for tunnel geological exploration with in-hole imaging technology according to claim 4, characterized in that, The front side of the second rack (13) is meshed with the rear side of the first toothed ring (16). The right side of the top end of the stop block (29) is an inclined surface. The top of the front end of the stop block (29) is located inside the bottom plate (1). The top of the rear end of the stop block (29) is located above the bottom plate (1).

10. The sampling method of a sampling device for tunnel geological exploration with in-hole imaging technology according to any one of claims 1-9, characterized in that, It includes the following steps: Push the device to the position where sampling is required, start the second motor (35) and the first motor (32). The second motor (35) drives the sampling cylinder (36) to rotate. The first motor (32) drives the lead screw (33) to rotate, causing the meshing frame (34) meshed with the surface of the lead screw (33) to move leftward, so that the meshing frame (34) drives the sampling cylinder (36) to move leftward, and then the sampling cylinder (36) rotates and horizontally inserts into the soil to sample the soil. After sampling, the first motor (32) reverses to take the sampling cylinder (36) out of the soil; Then, remove the sampling cylinder (36) from the output end of the second motor (35), and then insert the sampling cylinder (36) at the top end of the support rod (4). At this time, since there is a sample in the sampling cylinder (36), the sampling cylinder (36) cannot slide directly up and down on the support rod (4). Rotate the support rod (4) ninety degrees to the right so that the sampling cylinder (36) lies flat on the bottom plate (1). During the rotation of the support rod (4), the second toothed ring (25) and the first incomplete gear (11) drive the fourth rack (26) and the first rack (8) to move leftward respectively. When the fourth rack (26) moves leftward, it can pull the moving plate (22) leftward in the water tank (21), increasing the space on the right side inside the moving plate (22), and pumping the water on the left side of the water tank (21) into the right side of the moving plate (22). When the first incomplete gear (11) rotates, it drives the moving rod (6) to move leftward, compressing the second spring (14) by the retaining piece (12). When the sampling cylinder (36) is laid flat, the retaining piece (12) is located at the left end of the front side of the stop block (29). At this time, the stop block (29) blocks the retaining piece (12), and at the same time, the pressing plate (28) presses on the first rack (8), causing the first rack (8) to move downward, thereby separating the first rack (8) from the first incomplete gear (11). At this time, push the sampling cylinder (36) to the left, causing the sampling cylinder (36) to press down the rear stop block (29). At this time, the front stop block (29) loses its block on the retaining piece (12). The second spring (14) in the compressed state drives the moving rod (6) to move rightward under the action of elasticity. However, due to the frictional force between the rubber block (5) and the moving rod (6), the moving rod (6) moves slowly to the right. When the moving rod (6) moves to the right, it can drive the second rack (13) to move, thereby driving the first toothed ring (16) to rotate, and finally driving the second incomplete gear (17) to rotate. By the meshing of the second incomplete gear (17) with the two third racks (20) respectively, it can drive the knocking rod (19) to move back and forth. When the knocking rod (19) moves backward and contacts the sampling cylinder (36), it can knock the sampling cylinder (36), thereby assisting in taking out the soil in the sampling cylinder (36); After completely taking out the soil in the sampling cylinder (36), rotate the support rod (4) in the reverse direction. At this time, the rotation of the support rod (4) will drive the first rack (8) and the fourth rack (26) to move rightward. During this process, the fourth rack (26) drives the moving plate (22) to move rightward, squeezing the water on the right side of the moving plate (22) into the support rod (4) through the one-way water outlet pipe (24), and finally spraying it into the inner cavity of the sampling cylinder (36) through the nozzle (27) to clean the inner wall of the sampling cylinder (36); After cleaning, remove the sampling cylinder (36). Then, rotate the support rod (4) to the left to disengage the teeth of the incomplete gear one (11) from the rack one (8). At this time, the second spring (14) will drive the moving rod (6) to reset. After resetting, place the support rod (4) in a vertical state. Since there is water on both the left and right sides of the moving plate (22) at this time, the movement of the moving plate (22) in the water tank (21) is hindered. Without the movement of the support rod (4), the moving plate (22) will not move, and the support rod (4) can remain in a vertical state.

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