A hole-sealing device for geological exploration boreholes

Abstract

The present invention discloses a hole-sealing device for geological exploration boreholes, which relates to the technical field of borehole sealing. The present invention includes a suspension pipe, and a plurality of grouting nozzles are fixed on the outer wall of the lower part of the suspension pipe. A plugging device is arranged at the bottom of the suspension pipe. The plugging device includes a fixing frame and a T-shaped plate. The fixing frame is fixed on the inner wall of the lower part of the suspension pipe. A hydraulic cylinder is fixed on the top of the fixing frame. The T-shaped plate penetrates and is slidably installed at the bottom of the suspension pipe. A limiting component for fixing the T-shaped plate at the suspension pipe is arranged at the top of the column rod of the T-shaped plate. Through the arrangement of the plugging device, the limiting component, the fixing component, the hydraulic cylinder, the T-shaped plate, the sliding plate, the air storage bag and the air guide ring cooperate to drive the annular drum to expand preferentially on the side far from the sliding plate. The expanded part of the annular drum will abut against the borehole wall, so that the annular drum seals the borehole wall.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling sealing, and specifically provides a hole - sealing device for geological exploration drilling. Background Art

[0002] Sealing of geological exploration drill holes refers to the process of sealing drill holes through professional equipment and technologies during geological exploration to prevent leakage of groundwater, gas, or mud. The purpose of hole - sealing is to ensure the reliability of exploration data, the stability of in - hole pressure, and to prevent pollution of groundwater resources. The hole - sealing method varies according to different drilling depths, hole diameters, and geological conditions. This technology is widely used in fields such as hydrogeological exploration, environmental monitoring, and oil exploration to ensure the accuracy of geological exploration and environmental safety.

[0003] A Chinese patent with the patent announcement number CN216841543U discloses a hole - sealing device for exploration drill holes in limestone areas, which includes a hole - sealing frame, a hole - sealing ball, and a pusher. The hole - sealing frame includes a propulsion rod, a connecting column detachably connected to the propulsion rod, and a number of telescopic rods arranged on the connecting column. One end of the telescopic rod is fixed on the circumferential side wall of the connecting column, and the ends of the plurality of telescopic rods away from the connecting column are circumferentially distributed around the central axis of the connecting column. The telescopic rod can extend or contract along its own length direction, and a driving component for driving the telescopic rod to extend or contract is also arranged on the hole - sealing frame. This patent can reduce the occurrence of the plugging material falling into the karst cave.

[0004] However, the current hole - sealing device has the following problems: The hole - sealing device supports the hole - sealing ball by inserting the telescopic rods into the hole wall of the drill hole, so as to plug the drill hole with the hole - sealing ball. However, there are gaps between multiple telescopic rods, and the gaps between multiple telescopic rods will cause uneven support of the hole - sealing ball, easily resulting in the hole - sealing ball not fully fitting the drill hole wall, thus affecting the plugging effect. Therefore, we propose a hole - sealing device for geological exploration drilling. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a hole - sealing device for geological exploration drilling, which solves the problems raised in the above - mentioned background art.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: A hole-sealing device for geological exploration boreholes, including a suspension pipe. A number of grouting nozzles are fixed on the outer wall of the lower part of the suspension pipe. A plugging device is arranged at the bottom of the suspension pipe. The plugging device includes a fixing frame and a T-shaped plate. The fixing frame is fixed on the inner wall of the lower part of the suspension pipe. A hydraulic cylinder is fixed on the top of the fixing frame. The T-shaped plate penetrates and is slidably installed at the bottom of the suspension pipe. A limiting component for fixing the T-shaped plate at the suspension pipe is arranged at the top of the column rod of the T-shaped plate. A fixing component for fixing the position of the T-shaped plate is arranged on the top surface of the disc of the T-shaped plate. A cross-shaped sliding groove is opened on the column rod of the T-shaped plate. A sliding disc is slidably installed inside the cross-shaped sliding groove of the T-shaped plate. The output end of the hydraulic cylinder penetrates the top of the T-shaped plate, and the bottom of the output end of the hydraulic cylinder is in contact with the top of the sliding disc. An annular bulge is fixed at the bottom of the sliding disc. An air guide ring is embedded in the middle of the bottom of the sliding disc. An air storage bag is fixed at the bottom of the air guide ring, and the bottom of the air storage bag is fixedly connected to the top surface of the disc of the T-shaped plate. The air storage bag is arranged in an elastic structure and is used to assist in supporting the sliding disc. The air storage bag is communicated with the inside of the annular bulge through the air guide ring. The wall thickness of one side of the annular bulge away from the center of the sliding disc is smaller than the wall thickness of other parts of the annular bulge. The limiting component includes a number of U-shaped resisting rods and a number of triangular clamping blocks. A number of the U-shaped resisting rods are circumferentially and uniformly fixed on the top of the sliding disc, and the U-shaped resisting rods vertically penetrate the column rod of the T-shaped plate. A number of the triangular clamping blocks are circumferentially and uniformly slidably installed on the top of the column rod of the T-shaped plate, and a spring is arranged between the triangular clamping blocks and the top of the column rod of the T-shaped plate. The opening of the U-shaped resisting rod is downward. The top cross bar of the U-shaped resisting rod is columnar. The inclined surface of the triangular clamping block is located on the columnar movement track of the U-shaped resisting rod. The fixing component includes a number of hinge rods I, a number of supporting plates, and a number of clamping plates. A number of the clamping plates are circumferentially and uniformly slidably installed on the top surface of the disc of the T-shaped plate. One ends of a number of the hinge rods I are respectively hinged to the tops of a number of the clamping plates. The other ends of a number of the hinge rods I are all hinged to the bottom of the sliding disc. A number of the supporting plates are respectively fixed on both sides of a number of the clamping plates. The telescopic end of the hydraulic cylinder pushes the sliding disc to move downward along the cross groove of the T-shaped plate. The sliding disc pushes the hinge rod I to drive the clamping plate to move away from the T-shaped plate. The clamping plate will be inserted into the borehole wall. At this time, the clamping plate will fix the T-shaped plate in the borehole wall. At the same time, the clamping plate drives the supporting plate to move accordingly. At the same time, when the sliding disc moves downward, it will drive the U-shaped resisting rod to move downward. When the columnar part of the U-shaped resisting rod moves to the inclined surface position of the triangular clamping block, the columnar part of the U-shaped resisting rod pushes the inclined surface of the triangular clamping block to drive the triangular clamping block to move towards the center of the T-shaped plate, and the corresponding spring of the triangular clamping block is compressed. At this time, the triangular clamping block no longer clamps the T-shaped plate at the suspension pipe, and the suspension pipe can be separated from the T-shaped plate. Then, when the telescopic end of the hydraulic cylinder continues to push the sliding disc to drive the U-shaped resisting rod to move downward, the U-shaped resisting rod will cross over the triangular clamping block.The triangular clamping block resets under the elastic force of the corresponding spring, and the triangular clamping block limits the top of the U-shaped contact rod. At the same time, when the sliding disk moves downward, the sliding disk will squeeze the air storage bag. The air inside the air storage bag enters the annular drum through the air guide ring. Since the wall thickness of one side of the annular drum far from the center of the sliding disk is smaller than the wall thickness of other parts of the annular drum, therefore, the side of the annular drum far from the sliding disk will expand first. The expanded part of the annular drum will abut against the wall of the drilling hole, so that the annular drum seals the wall of the drilling hole.

[0007] According to the above technical solution, a plurality of rubber strips are uniformly fixed on the outer circumference of the annular drum. At the same time, when the side of the annular drum far from the sliding disk expands, it will drive the rubber strips to contact the wall of the drilling hole.

[0008] According to the above technical solution, a slurry stirring device is arranged outside the suspension pipe. The slurry stirring device includes a rotating rod and an internal gear disk. The rotating rod is rotatably installed outside the suspension pipe through a bracket. A gear is fixed at the bottom of the rotating rod. The internal gear disk is fixed at the bottom of the suspension pipe. The internal gear disk meshes with the gear. A plurality of T-shaped plates are uniformly fixed on the top circumference of the internal gear disk. There is a distance of ten centimeters between the plurality of T-shaped plates and the rotating rod. After the plugging device plugs the drilling hole, the slurry is injected into the suspension pipe. The suspension pipe sprays the slurry into the drilling hole through the grouting nozzle. During this process, the rotating rod is driven to rotate by a motor. The rotating rod drives the gear to rotate. The gear drives the internal gear disk to rotate. The internal gear disk drives the T-shaped plates to rotate.

[0009] According to the above technical solution, an elastic plate is fixed on one side of the T-shaped plate close to the suspension pipe. The grouting nozzle is located on the movement track of the elastic plate. At the same time, the T-shaped plate drives the elastic plate to rotate. The elastic plate scrapes the nozzle of the grouting nozzle.

[0010] According to the above technical solution, the slurry stirring device further includes an annular inclined chute cylinder and a slip ring. The annular inclined chute cylinder is fixed outside the rotating rod. An annular inclined chute is provided outside the annular inclined chute cylinder. The slip ring is slidably mounted on the outer wall of the suspension pipe. A through port is provided at an eccentric position of the slip ring. The through port of the slip ring is sleeved outside the annular inclined chute cylinder. A sliding column is fixed at the inner wall of the through port of the slip ring, and the sliding column is slidably mounted inside the annular inclined chute of the annular inclined chute cylinder. A plurality of sliders are slidably mounted outside the slip ring. The bottoms of the plurality of sliders are each hinged with a second articulated rod. The end of the second articulated rod away from the slider is hinged with a U-shaped push rod, and the U-shaped push rod is slidably mounted on the top of the T-shaped plate. A plurality of insertion rods are evenly and equidistantly fixed on the side of the two vertical struts of the U-shaped push rod away from the suspension pipe. A strip-shaped opening for accommodating the insertion rods is provided on the outer wall of the T-shaped plate. At the same time, the rotating rod drives the annular inclined chute cylinder to rotate. The annular inclined chute of the annular inclined chute cylinder pushes the sliding column to drive the slip ring to move up and down reciprocally. Each time the slip ring moves downward, the slip ring drives the slider to move downward. The slider pushes the second articulated rod to drive the U-shaped push rod to move away from the suspension pipe. The U-shaped push rod drives the insertion rod to move along. As a result, the insertion rod is inserted into the hole wall of the drill hole, and thus insertion holes are formed on the hole wall of the drill hole.

[0011] The present invention provides a hole sealing device for geological exploration drill holes. It has the following beneficial effects:

[0012] (1) Through the setting of the plugging device in the present invention, the limiting component, the fixing component, the hydraulic cylinder, the T-shaped disc, the sliding disc, the air storage bag, and the air guiding ring cooperate to drive the annular drum to expand preferentially on the side away from the sliding disc. The expanded part of the annular drum will abut against the hole wall of the drill hole, so that the annular drum seals the hole wall of the drill hole. At the same time, the sliding disc will drive the annular drum to abut against the top surface of the disc of the T-shaped disc. The sliding disc and the T-shaped disc will further squeeze the annular drum, thereby further promoting the annular drum to expand preferentially on the side away from the sliding disc, so as to ensure that the annular drum can be in close contact with the hole wall of the drill hole, further improving the sealing effect of the annular drum. At the same time, when the side of the annular drum away from the sliding disc expands, it will drive the rubber strip to contact the hole wall of the drill hole. When the rubber strip contacts the hole wall of the drill hole, it can increase the friction force, helping the annular drum to stably stay on the hole wall of the drill hole, preventing the annular drum from shifting or deviating after expansion. Through the action of the friction force, the durability and reliability of the plugging of the annular drum are enhanced.

[0013] (2) Through the setting of the slurry stirring device in the present invention, the rotating rod, gear, and internal gear disk cooperate to drive the T-shaped plate to rotate. The rotation of the T-shaped plate can help evenly distribute the slurry into the drilling holes, enabling the slurry to cover all corners of the drilling holes, ensuring that all potential water leakage or gas channels are blocked, thereby improving the comprehensiveness and durability of the plugging effect. At the same time, the T-shaped plate drives the elastic plate to scrape the nozzle of the grouting nozzle. During the grouting process of the grouting nozzle, the slurry is likely to accumulate or agglomerate at the nozzle of the grouting nozzle, resulting in blockage of the nozzle of the grouting nozzle. The scraping action of the elastic plate can effectively remove the accumulated material on the nozzle of the grouting nozzle, keep the nozzle unobstructed, ensure that the slurry can be continuously and evenly ejected, and avoid blockage during the grouting process.

[0014] (3) Through the cooperation of the rotating rod, annular inclined groove cylinder, sliding column, sliding ring, slider, second articulated rod, and U-shaped push rod in the present invention, the insertion rod is driven to insert into the hole wall of the drilling hole, thereby forming an insertion hole on the hole wall of the drilling hole. The insertion hole provides a direct injection channel for hole plugging grouting, enabling the slurry to effectively penetrate into the rock layer or geological structure around the drilling hole through the insertion hole, enhancing the plugging effect. Description of the Drawings

[0015] Figure 1 Schematic diagram of the whole of the present invention Figure 1 ;

[0016] Figure 2 Schematic diagram of the whole of the present invention Figure 2 ;

[0017] Figure 3 Partial sectional schematic diagram of the plugging device of the present invention Figure 1 ;

[0018] Figure 4 Partial sectional schematic diagram of the plugging device of the present invention Figure 2 ;

[0019] Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at position A;

[0020] Figure 6 For the present invention Figure 4 Enlarged schematic diagram of the structure at position B;

[0021] Figure 7 Schematic diagram of the slurry stirring device of the present invention;

[0022] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at position C;

[0023] Figure 9 Partial structure schematic diagram of the slurry stirring device of the present invention.

[0024] In the figure: 1. Suspension pipe; 2. Grouting nozzle; 3. Sealing device; 31. Fixing frame; 32. Hydraulic cylinder; 33. T-shaped plate; 34. Sliding plate; 35. Air guide ring; 36. Annular bulge; 37. Air storage bag; 38. Rubber strip; 39. U-shaped contact rod; 310. Triangular clamping block; 311. First articulated rod; 312. Supporting plate; 313. Clamping plate; 4. Slurry mixing device; 41. Rotating rod; 42. Gear; 43. Internal gear disc; 44. T-shaped plate; 45. Elastic plate; 46. Annular inclined groove cylinder; 47. Sliding ring; 471. Sliding column; 48. Slide block; 49. Second articulated rod; 410. U-shaped push rod; 411. Insert rod. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] Please refer to Figure 1 - Figure 9, the present invention provides a technical solution: a hole-sealing device for geological exploration boreholes, including a suspension pipe 1. A plurality of grouting nozzles 2 are fixed on the outer wall of the lower part of the suspension pipe 1. A plugging device 3 is arranged at the bottom of the suspension pipe 1. The plugging device 3 includes a fixing frame 31 and a T-shaped plate 33. The fixing frame 31 is fixed on the inner wall of the lower part of the suspension pipe 1. A hydraulic cylinder 32 is fixed on the top of the fixing frame 31. The T-shaped plate 33 penetrates and is slidably installed at the bottom of the suspension pipe 1. A limiting component for fixing the T-shaped plate 33 at the suspension pipe 1 is arranged at the top of the column rod of the T-shaped plate 33. A fixing component for fixing the position of the T-shaped plate 33 is arranged on the top surface of the disc of the T-shaped plate 33. A cross-shaped sliding groove is formed in the column rod of the T-shaped plate 33. A sliding disc 34 is slidably installed inside the cross-shaped sliding groove of the T-shaped plate 33. The output end of the hydraulic cylinder 32 penetrates the top of the T-shaped plate 33, and the bottom of the output end of the hydraulic cylinder 32 is in contact with the top of the sliding disc 34. An annular bulge 36 is fixed at the bottom of the sliding disc 34. A gas guide ring 35 is embedded in the middle of the bottom of the sliding disc 34. A gas storage bag 37 is fixed at the bottom of the gas guide ring 35, and the bottom of the gas storage bag 37 is fixedly connected to the top surface of the disc of the T-shaped plate 33. The gas storage bag 37 is arranged in an elastic structure and is used to assist in supporting the sliding disc 34. The gas storage bag 37 is communicated with the inside of the annular bulge 36 through the gas guide ring 35. The wall thickness of one side of the annular bulge 36 far from the center of the sliding disc 34 is smaller than the wall thickness of other parts of the annular bulge 36. The limiting component includes a plurality of U-shaped abutting rods 39 and a plurality of triangular clamping blocks 310. A plurality of U-shaped abutting rods 39 are circumferentially and uniformly fixed on the top of the sliding disc 34, and the U-shaped abutting rods 39 vertically penetrate the column rod of the T-shaped plate 33. A plurality of triangular clamping blocks 310 are circumferentially and uniformly slidably installed on the top of the column rod of the T-shaped plate 33, and a spring is arranged between the triangular clamping blocks 310 and the top of the column rod of the T-shaped plate 33. The opening of the U-shaped abutting rod 39 is downward, the top cross bar of the U-shaped abutting rod 39 is columnar, and the inclined surface of the triangular clamping block 310 is located on the columnar movement track of the U-shaped abutting rod 39. The fixing component includes a plurality of first hinge rods 311, a plurality of supporting plates 312, and a plurality of clamping plates 313. A plurality of clamping plates 313 are circumferentially and uniformly slidably installed on the top surface of the disc of the T-shaped plate 33. One ends of a plurality of first hinge rods 311 are respectively hinged to the tops of a plurality of clamping plates 313, and the other ends of a plurality of first hinge rods 311 are all hinged to the bottom of the sliding disc 34. A plurality of supporting plates 312 are respectively fixed on both sides of a plurality of clamping plates 313. Through the setting of the above structure, the air inside the gas storage bag 37 enters the annular bulge 36 through the gas guide ring 35. Since the wall thickness of one side of the annular bulge 36 far from the center of the sliding disc 34 is smaller than the wall thickness of other parts of the annular bulge 36, therefore, the side of the annular bulge 36 far from the sliding disc 34 will expand first. The expanded part of the annular bulge 36 will abut against the borehole wall, so that the annular bulge 36 seals the borehole wall. At the same time, the sliding disc 34 will drive the annular bulge 36 to abut against the top surface of the disc of the T-shaped plate 33, and the sliding disc 34 and the T-shaped plate 33 will further squeeze the annular bulge 36.Thus, it further promotes the preferential expansion of the annular drum 36 on the side away from the sliding disk 34, ensuring that the annular drum 36 can be in close contact with the borehole wall, and further improving the sealing effect of the annular drum 36.

[0027] A number of rubber strips 38 are uniformly fixed on the outer circumference of the annular drum 36. Through the above structure, when the annular drum 36 expands on the side away from the sliding disk 34, it will drive the rubber strips 38 to contact the borehole wall. When the rubber strips 38 contact the borehole wall, the friction can be increased, helping the annular drum 36 to stably stay on the borehole wall and preventing the annular drum 36 from shifting or deviating after expansion. Through the action of friction, the durability and reliability of the sealing of the annular drum 36 are enhanced.

[0028] A slurry stirring device 4 is arranged outside the suspension pipe 1. The slurry stirring device 4 includes a rotating rod 41 and an internal gear disk 43. The rotating rod 41 is rotatably installed outside the suspension pipe 1 through a bracket (combined Figure 1 and Figure 7 ). A gear 42 is fixed at the bottom of the rotating rod 41. The internal gear disk 43 is fixed at the bottom of the suspension pipe 1. The internal gear disk 43 meshes with the gear 42. A number of T-shaped plates 44 are uniformly fixed on the top circumference of the internal gear disk 43. There is a ten-centimeter spacing between the number of T-shaped plates 44 and the rotating rod 41. Through the above structure, the rotation of the T-shaped plates 44 can help distribute the slurry evenly into the borehole, enabling the slurry to cover all corners of the borehole and ensuring that all potential water leakage or gas channels are blocked, thereby improving the comprehensiveness and durability of the sealing effect.

[0029] An elastic plate 45 is fixed on the side of the T-shaped plate 44 close to the suspension pipe 1. The grouting nozzle 2 is located on the movement track of the elastic plate 45. Through the above structure, the elastic plate 45 scrapes the nozzle of the grouting nozzle 2. During the grouting process of the grouting nozzle 2, the slurry is likely to accumulate or agglomerate at the nozzle of the grouting nozzle 2, resulting in the blockage of the nozzle of the grouting nozzle 2. The scraping action of the elastic plate 45 can effectively remove the accumulated material on the nozzle of the grouting nozzle 2, keep the nozzle unblocked, ensure that the slurry can be continuously and evenly ejected, and avoid blockage during the grouting process.

[0030] The slurry stirring device 4 further includes an annular inclined groove cylinder 46 and a sliding ring 47. The annular inclined groove cylinder 46 is fixed outside the rotating rod 41. An annular inclined groove is formed on the outside of the annular inclined groove cylinder 46 (as Figure 9 shown), and the sliding ring 47 is slidably installed on the outer wall of the suspension pipe 1. A through port is provided at the eccentric position of the sliding ring 47 (as Figure 7As shown, the through port of the slip ring 47 is sleeved outside the annular inclined groove cylinder 46. A slide post 471 is fixed at the inner wall of the through port of the slip ring 47, and the slide post 471 is slidably installed inside the annular inclined groove of the annular inclined groove cylinder 46. A number of sliders 48 are slidably installed outside the slip ring 47. The bottoms of the number of sliders 48 are all hinged with a second articulated rod 49. One end of the second articulated rod 49 away from the slider 48 is hinged with a U-shaped push rod 410, and the U-shaped push rod 410 is slidably installed on the top of the T-shaped plate 44. A number of insertion rods 411 are evenly and equidistantly fixed on the side of the two vertical struts of the U-shaped push rod 410 away from the suspension pipe 1. A strip-shaped opening for accommodating the insertion rods 411 is formed on the outer wall of the T-shaped plate 44. Through the setting of the above structure, the insertion rods 411 are inserted into the hole wall of the drill hole, so that insertion holes are formed on the hole wall of the drill hole. The insertion holes provide a direct injection channel for hole sealing grouting, so that the slurry can effectively penetrate into the rock layer or geological structure around the drill hole through the insertion holes, enhancing the sealing effect.

[0031] During use, the plugging device 3 is introduced into a specified depth in the borehole through the suspension pipe 1. The hydraulic cylinder 32 is activated, and the telescopic end of the hydraulic cylinder 32 pushes the sliding disk 34 to move downward along the cross groove of the T-shaped disk 33. The sliding disk 34 pushes the articulated rod 311 to drive the clamping plate 313 to move away from the T-shaped disk 33. The clamping plate 313 will insert into the borehole wall. At this time, the clamping plate 313 will fix the T-shaped disk 33 in the borehole wall. At the same time, the clamping plate 313 drives the supporting plate 312 to move along. At the same time, when the sliding disk 34 moves downward, it will drive the U-shaped contact rod 39 to move downward. When the column of the U-shaped contact rod 39 moves to the inclined surface position of the triangular clamping block 310, the column of the U-shaped contact rod 39 pushes the inclined surface of the triangular clamping block 310 to drive the triangular clamping block 310 to move toward the center of the T-shaped disk 33, and the corresponding spring of the triangular clamping block 310 is compressed. At this time, the triangular clamping block 310 no longer clamps the T-shaped disk 33 at the suspension pipe 1, and the suspension pipe 1 can be separated from the T-shaped disk 33. Then, when the telescopic end of the hydraulic cylinder 32 continues to push the sliding disk 34 to drive the U-shaped contact rod 39 to move downward, the U-shaped contact rod 39 will cross the triangular clamping block 310, and the triangular clamping block 310 will reset under the elastic force of the corresponding spring, and the triangular clamping block 310 forms a limit on the top of the U-shaped contact rod 39, so that the U-shaped contact rod 39 restricts the position of the sliding disk 34, and further makes the position where the sliding disk 34 drives the clamping plate 313 to insert into the borehole wall restricted, thus ensuring that the clamping plate 313 stably fixes the T-shaped disk 33 in the borehole wall. At the same time, when the sliding disk 34 moves downward, the sliding disk 34 will squeeze the air storage bag 37, and the air inside the air storage bag 37 enters the annular drum 36 through the air guide ring 35. Since the wall thickness of one side of the annular drum 36 away from the center of the sliding disk 34 is smaller than the wall thickness of other parts of the annular drum 36, therefore, the side of the annular drum 36 away from the sliding disk 34 will expand first. The expanded part of the annular drum 36 will abut against the borehole wall, so that the annular drum 36 seals the borehole wall. At the same time, the sliding disk 34 will drive the annular drum 36 to abut against the top surface of the disk of the T-shaped disk 33. The sliding disk 34 and the T-shaped disk 33 will further squeeze the annular drum 36, thus further promoting the side of the annular drum 36 away from the sliding disk 34 to expand first, so as to ensure that the annular drum 36 can be in close contact with the borehole wall, further improving the sealing effect of the annular drum 36. At the same time, the supporting plate 312 can support the expanded annular drum 36, thus ensuring the stability of the position of the annular drum 36; at the same time, when the side of the annular drum 36 away from the sliding disk 34 expands, it will drive the rubber strip 38 to contact the borehole wall. When the rubber strip 38 contacts the borehole wall, it can increase the friction force, help the annular drum 36 to stably stay on the borehole wall, prevent the annular drum 36 from shifting or deviating after expansion, and through the action of the friction force, enhance the durability and reliability of the sealing of the annular drum 36.

[0032] After the plugging device 3 finishes plugging the borehole, the slurry is injected into the suspension pipe 1. The suspension pipe 1 sprays the slurry into the borehole through the grouting nozzle 2. During this process, the rotating rod 41 is driven to rotate by the motor. The rotating rod 41 drives the gear 42 to rotate. The gear 42 drives the internal gear disk 43 to rotate. The internal gear disk 43 drives the T-shaped plate 44 to rotate. The rotation of the T-shaped plate 44 can help evenly distribute the slurry into the borehole, enabling the slurry to cover all corners of the borehole, ensuring that all potential water leakage or gas channels are plugged, thereby improving the comprehensiveness and durability of the plugging effect. At the same time, the T-shaped plate 44 drives the elastic plate 45 to rotate accordingly. The elastic plate 45 scrapes the nozzle of the grouting nozzle 2. During the grouting process of the grouting nozzle 2, the slurry is likely to accumulate or agglomerate at the nozzle of the grouting nozzle 2, resulting in the blockage of the nozzle of the grouting nozzle 2. The scraping action of the elastic plate 45 can effectively remove the accumulated material on the nozzle of the grouting nozzle 2, keep the nozzle unobstructed, ensure that the slurry can be continuously and evenly ejected, and avoid blockage during the grouting process. It should be noted that since the elastic plate 45 is arranged in an elastic structure, the rotating rod 41 will not interfere with the movement of the elastic plate 45. At the same time, the rotating rod 41 drives the annular inclined groove cylinder 46 to rotate. The annular inclined groove of the annular inclined groove cylinder 46 pushes the sliding column 471 to drive the sliding ring 47 to move up and down reciprocally. Each time the sliding ring 47 moves downward, the sliding ring 47 drives the slider 48 to move downward. The slider 48 pushes the second articulated rod 49 to drive the U-shaped push rod 410 to move away from the suspension pipe 1. The U-shaped push rod 410 drives the insertion rod 411 to move accordingly, so that the insertion rod 411 inserts into the borehole wall, thereby forming an insertion hole on the borehole wall. The insertion hole provides a direct injection channel for hole sealing grouting, enabling the slurry to effectively penetrate into the rock layer or geological structure around the borehole through the insertion hole, enhancing the plugging effect.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. A hole sealing device for geological exploration boreholes, comprising a suspension pipe (1), and a plurality of grouting nozzles (2) are fixed on the outer wall of the lower part of the suspension pipe (1), and it is characterized in that: A plugging device (3) is provided at the bottom of the suspension pipe (1). The plugging device (3) includes a fixing frame (31) and a T-shaped disc (33). The fixing frame (31) is fixed to the inner wall of the lower part of the suspension pipe (1). A hydraulic cylinder (32) is fixed to the top of the fixing frame (31). The T-shaped disc (33) penetrates and is slidably installed at the bottom of the suspension pipe (1). A limiting component for fixing the T-shaped disc (33) to the suspension pipe (1) is provided at the top of the column rod of the T-shaped disc (33). A fixing component for fixing the position of the T-shaped disc (33) is provided on the top surface of the disc of the T-shaped disc (33). A cross-shaped sliding groove is formed in the column rod of the T-shaped disc (33), and a sliding disc (34) is slidably installed inside the cross-shaped sliding groove of the T-shaped disc (33). The output end of the hydraulic cylinder (32) penetrates the top of the T-shaped disc (33), and the bottom of the output end of the hydraulic cylinder (32) is in contact with the top of the sliding disc (34). An annular bulge (36) is fixed to the bottom of the sliding disc (34). A gas guide ring (35) is embedded in the middle of the bottom of the sliding disc (34). A gas storage bag (37) is fixed to the bottom of the gas guide ring (35), and the bottom of the gas storage bag (37) is fixedly connected to the top surface of the disc of the T-shaped disc (33). The gas storage bag (37) is internally communicated with the inside of the annular bulge (36) through the gas guide ring (35).

2. The hole sealing device for geological exploration boreholes according to claim 1, wherein: The wall thickness of one side of the annular bulge (36) away from the center of the sliding disc (34) is smaller than the wall thickness of other parts of the annular bulge (36).

3. A hole-sealing device for geological exploration boreholes according to claim 1, characterized in that: A number of rubber strips (38) are uniformly fixed to the outer circumference of the annular bulge (36).

4. A hole-sealing device for geological exploration boreholes according to claim 1, characterized in that: The limiting component includes a number of U-shaped abutting rods (39) and a number of triangular blocks (310). The number of U-shaped abutting rods (39) is uniformly fixed to the top of the sliding disc (34) in a circumferential manner, and the U-shaped abutting rods (39) vertically penetrate the column rod of the T-shaped disc (33). The number of triangular blocks (310) is slidably installed on the top of the column rod of the T-shaped disc (33) in a circumferential manner, and a spring is provided between the triangular blocks (310) and the top of the column rod of the T-shaped disc (33).

5. The hole-sealing device for geological exploration boreholes according to claim 4, characterized in that: The opening of the U-shaped abutting rod (39) is downward, the top cross bar of the U-shaped abutting rod (39) is columnar, and the inclined surface of the triangular block (310) is located on the columnar movement track of the U-shaped abutting rod (39).

6. The hole-sealing device for geological exploration drilling according to claim 1, wherein: The fixing component includes a number of first articulated rods (311), a number of supporting plates (312), and a number of clamping plates (313). The number of clamping plates (313) is slidably installed on the top surface of the disc of the T-shaped disc (33) in a circumferential manner. One ends of the number of first articulated rods (311) are respectively articulated to the tops of the number of clamping plates (313). The other ends of the number of first articulated rods (311) are all articulated to the bottom of the sliding disc (34). The number of supporting plates (312) are respectively fixed to both sides of the number of clamping plates (313).

7. A hole-sealing device for geological exploration boreholes according to claim 1, characterized in that: An agitating device (4) is arranged outside the suspension pipe (1). The agitating device (4) includes a rotating rod (41) and an internal gear disc (43). The rotating rod (41) is rotatably installed outside the suspension pipe (1) through a bracket. A gear (42) is fixed at the bottom of the rotating rod (41). The internal gear disc (43) is fixed at the bottom of the suspension pipe (1). The internal gear disc (43) meshes with the gear (42). A plurality of T-shaped plates (44) are evenly fixed on the top circumference of the internal gear disc (43).

8. The hole-sealing device for geological exploration boreholes according to claim 7, characterized in that: There is a ten-centimeter spacing between the plurality of T-shaped plates (44) and the rotating rod (41).

9. The hole-sealing device for geological exploration boreholes according to claim 7, wherein: A spring plate (45) is fixed on the side of the T-shaped plate (44) close to the suspension pipe (1). The grouting nozzle (2) is located on the movement track of the spring plate (45).

10. A hole sealing device for geological exploration drilling according to claim 7, characterized in that: The agitating device (4) further includes an annular inclined groove cylinder (46) and a sliding ring (47). The annular inclined groove cylinder (46) is fixed outside the rotating rod (41). An annular inclined groove is formed on the outside of the annular inclined groove cylinder (46). The sliding ring (47) is slidably installed on the outer wall of the suspension pipe (1). A through port is arranged at the eccentric position of the sliding ring (47). The through port of the sliding ring (47) is sleeved outside the annular inclined groove cylinder (46). A sliding column (471) is fixed at the inner wall of the through port of the sliding ring (47), and the sliding column (471) is slidably installed inside the annular inclined groove of the annular inclined groove cylinder (46). A plurality of sliders (48) are slidably installed outside the sliding ring (47). The bottoms of the plurality of sliders (48) are all hinged with a second articulated rod (49). One end of the second articulated rod (49) away from the slider (48) is hinged with a U-shaped push rod (410), and the U-shaped push rod (410) is slidably installed on the top of the T-shaped plate (44). A plurality of inserting rods (411) are evenly and equidistantly fixed on the side of the two vertical rods of the U-shaped push rod (410) away from the suspension pipe (1). A strip-shaped opening for accommodating the inserting rods (411) is formed on the outer wall of the T-shaped plate (44).

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