A hole plugging device and method for geological exploration

Abstract

A geological exploration hole plugging device and method belong to the geological exploration equipment field. Including the cylinder, the upper end of the cylinder is fixedly connected with the cover, the side of the cylinder is provided with a plurality of sealing devices and the control device matched with the sealing device, each sealing device includes the elastic band fixedly connected at the section of the cylinder, and the section of the cylinder is fixedly connected with the support rod. The present application not only makes the elastic band stretch and abut on the inner wall of the hole under the action of water pressure to prevent groundwater seepage, but also prevents the device from being pulled out upward through the friction between the elastic band and the inner wall of the hole.

Description

Technical Field

[0001] This invention relates to a hole sealing device and method for geological exploration, belonging to the field of geological exploration equipment. Background Technology

[0002] Geological exploration often requires drilling, which can potentially lead to groundwater seepage. In such cases, the borehole needs to be sealed to prevent further seepage. Currently, common sealing devices typically involve fixing a cylinder to the inner wall of the borehole using rods, and then sealing the inside of the cylinder. However, in practice, because the inner wall of the borehole is not a smooth plane, gaps inevitably remain between the cylinder and the borehole wall, allowing small amounts of groundwater to flow upwards under pressure. Therefore, improvements to this method are necessary. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems existing in the background art and to provide a hole sealing device and method for geological exploration.

[0004] The present invention achieves the above objectives by adopting the following technical solution:

[0005] A hole sealing device for geological exploration includes a cylinder; a cover is fixedly connected to the upper end of the cylinder, and multiple sealing devices and a control device that cooperates with the sealing devices are provided on the side of the cylinder.

[0006] Each of the sealing devices includes an elastic band fixedly connected to the cross-section of the cylinder; the cross-section of the cylinder is fixedly connected to the support rod.

[0007] A method for using a borehole sealing device for geological exploration, the method comprising the following steps:

[0008] Step 1: Insert the cylinder into the hole;

[0009] Step 2: Rotate the screw to block the through hole with the sealing plate and move the lower baffle into the inside of the cylinder;

[0010] Step 3: Continuously rotate the screw, causing the lower baffle to move upwards inside the cylinder, thereby causing the elastic band and elastic airbag to deform under pressure and press against the inner wall of the hole. Compared with the prior art, the beneficial effects of this invention are: this invention not only stretches the elastic band under water pressure and presses it tightly against the inner wall of the hole to prevent groundwater seepage, but also prevents the device from detaching upwards through the friction between the elastic band and the inner wall of the hole. Attached Figure Description

[0011] Figure 1 This is the front view of the present invention;

[0012] Figure 2This is a front view of the control device of the present invention;

[0013] Figure 3 This is a schematic diagram of the connection structure of the cylinder and sealing device of the present invention;

[0014] Figure 4 This is a schematic diagram of the sealing device of the present invention;

[0015] Figure 5 yes Figure 3 A cross-sectional view along the AA direction;

[0016] Figure 6 This is a schematic diagram of the connection structure of the elastic airbag and the support ring of the present invention;

[0017] Figure 7 This is a schematic diagram of the elastic band under tension according to the present invention. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0019] Specific implementation method one: as follows Figure 1-7 As shown, this embodiment describes a hole sealing device for geological exploration, including a cylinder 2; a cover 1 is fixedly connected to the upper end of the cylinder 2, and multiple sealing devices 4 and a control device 3 that cooperates with the sealing devices 4 are provided on the side of the cylinder 2.

[0020] Each of the sealing devices 4 includes an elastic band 41 fixedly connected to the cross-section of the cylinder 2; the cross-section of the cylinder 2 is fixedly connected to the support rod 42. The elastic band 41 abuts against the inner wall of the hole 5 to prevent groundwater from flowing upward and overflowing.

[0021] The control device 3 includes a fixed cylinder 37; an annular connecting plate 39 is fixedly connected to the outer side of the top of the fixed cylinder 37, and the outer circular surface of the connecting plate 39 is fixedly connected to the inner wall of the cylinder 2; the inner wall of the fixed cylinder 37 is provided with multiple through holes 38, and the bottom end of the inner wall of the fixed cylinder 37 is fixedly connected with a base plate 310; the base plate 310 is provided with multiple water-permeable holes 311, and the center of the base plate 310 is provided with a threaded hole, which cooperates with the screw 32; the lower end of the screw 32 is fixedly connected with a lower baffle 31, the top of the screw 32 is fixedly connected with a retaining ring 34, and a sleeve 35 that slides with the screw 32 is sleeved on the screw 32; a spring 36 is fixedly connected between the sleeve 35 and the lower baffle 31; a sealing plate 33 is fixedly connected to the outer circular surface of the sleeve 35. By rotating the screw 32, the sealing plate 33, the cylinder 2, and the lower baffle 31 form a sealed space. As the lower baffle 31 moves upward, the water pressure increases, which in turn causes the elastic belt 41 and the elastic airbag 49 to deform.

[0022] The cover 1 has a through hole 11 in the center.

[0023] The diameter of the sealing plate 33 is larger than the diameter of the through hole 11.

[0024] The diameter of the lower baffle 31 is equal to the inner diameter of the cylinder 2.

[0025] The inner side of the elastic band 41 is fixedly connected to a slide cylinder 44; the slide cylinder 44 is provided with a slide rod 48 that slides with it; the slide rod 48 slides with a corresponding perforation 38. By increasing the water pressure inside the cylinder 2, the slide rod 48 slides relative to the slide cylinder 44, thereby changing the air pressure inside the elastic airbag 49.

[0026] The end of the support rod 42 away from the cross section of the cylinder 2 is fixedly connected to the support ring 43; an elastic airbag 49 is fixedly connected to the side of the support ring 43 near the elastic band 41; both ends of the elastic airbag 49 are fixedly connected to the sides of two adjacent sliding cylinders 44; the support ring 43 is provided with a hole that slides with the sliding cylinder 44, the sliding cylinder 44 passes through the hole on the support ring 43, and the height of the support ring is greater than that of the sliding cylinder 44.

[0027] The side of the slide cylinder 44 is provided with a connection hole I 45 that forms a spatial connection with the support ring 43 and the elastic airbag 49.

[0028] A duct 47 is fixedly connected between adjacent sliding cylinders 44 in the vertical direction, and each sliding cylinder 44 is provided with a connection hole II 46 communicating with the duct 47. When the inner diameter or shape of the holes 5 at the locations of multiple elastic bands 41 are inconsistent (e.g. Figure 7 As shown, the inner wall of the hole 5 located at the lowest point is irregular or the diameter is large. The water pressure inside the cylinder 2 increases, causing the adjacent sliding rod 48 in the vertical direction to move together. Figure 7When the upper elastic band 41 and elastic airbag 49 reach their limits, the water pressure continues to increase, causing the slide bar 48 corresponding to the upper elastic band 41 to continue moving. This pushes the gas through the connecting hole II 46 and the air guide pipe 47 into the slide cylinder 44 corresponding to the lower elastic band 41, thereby increasing the air pressure inside the lower elastic airbag 49. This prevents the elastic airbag 49 from being set up alone, where insufficient gas pressure would prevent it from pressing against the inner wall of the corresponding elastic band 41. Furthermore, when the internal gas pressure is sufficient, the gas in the upper and lower adjacent slide cylinders 44 simultaneously flows into the lower elastic airbag 49, accelerating the expansion speed of the lower airbag 49.

[0029] A method for using a borehole sealing device for geological exploration, the method comprising the following steps:

[0030] Step 1: Insert the cylinder 2 into the hole 5;

[0031] Step 2: Rotate screw 32 to block through hole 11 with sealing plate 33 and move lower baffle 31 into cylinder 2;

[0032] Step 3: Continuously rotate the screw 32 to make the lower baffle 31 move upward inside the cylinder 2, thereby causing the elastic band 41 and the elastic airbag 49 to deform under pressure and abut against the inner wall of the hole 5.

[0033] The working principle of this invention is as follows: the cylinder 2 is inserted into the hole 5, at which time the sealing plate 33 is not in contact with the cover 1, and the lower baffle 31 is located below the cylinder 2 (e.g., Figure 1 As shown), the groundwater in hole 5 is... Figure 1 In the state shown, the water flows out through the gap between the lower baffle 31 and the cylinder 2, the water-permeable hole 311, and the through hole 11, avoiding the resistance of water that would make it difficult to lower the cylinder 2.

[0034] After the cylinder 2 is fully inserted into the hole 5, the screw 32 is rotated and moves upward. The spring 36 is always in a compressed state. Under the elastic force of the spring 36, the sealing plate 33 moves upward, so that the sealing plate 33 blocks the through hole 11. At the same time, the screw 32 also drives the lower baffle 31 to move into the cylinder 2, separating the groundwater inside the cylinder 2 from the groundwater inside the hole 5.

[0035] Then, the screw 32 continues to rotate, causing the lower baffle 31 to move upward continuously inside the cylinder 2. The volume of water inside the cylinder 2 is constant, and the through hole 11 is blocked by the sealing plate 33. Therefore, the water pressure inside the cylinder 2 increases, causing the elastic band 41 to deform under pressure and expand outward. This causes the elastic band 41 to press against the inner wall of the hole 5. The elastic band 41 will change shape according to the shape of the inner wall of the hole 5, so that it fits completely, preventing groundwater from flowing out through the gap between the outer wall of the cylinder 2 and the inner wall of the hole 5. At the same time, the water pressure increases the friction between the elastic band 41 and the inner wall of the hole 5, so as to prevent the cylinder 2 from detaching from the hole 5 under the action of groundwater pressure.

[0036] As the water pressure inside the cylinder 2 increases, the water pressure also drives the slide rod 48 to move into the slide cylinder 44, compressing the air inside the slide cylinder 44 and causing it to enter the elastic airbag 49 connected to it. This increases the pressure inside the elastic airbag 49 and causes it to expand, pressing against the inner wall of the elastic band 41. When the elastic band 41 is completely pressed against the inner wall of the hole 5 and can no longer deform, the increased water pressure only causes the elastic airbag 49 to expand. Finally, the elastic airbag 49 expands and completely presses against the inner wall of the elastic band 41, applying pressure perpendicular to the inner wall of the hole 5 to the elastic band 41, making the elastic band 41 fit more tightly against the inner wall of the hole 5, further preventing water leakage.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hole-sealing device for geological exploration, characterized in that: Includes a cylinder (2); the upper end of the cylinder (2) is fixedly connected to a cover (1), and the side of the cylinder (2) is provided with multiple sealing devices (4) and a control device (3) that cooperates with the sealing devices (4); Each of the sealing devices (4) includes an elastic band (41) fixedly connected to the cross section of the cylinder (2); the cross section of the cylinder (2) is fixedly connected to the support rod (42).

2. The hole-sealing device for geological exploration according to claim 1, characterized in that: The control device (3) includes a fixed cylinder (37); an annular connecting plate (39) is fixedly connected to the outer side of the top of the fixed cylinder (37), and the outer circular surface of the connecting plate (39) is fixedly connected to the inner wall of the cylinder (2); the inner wall of the fixed cylinder (37) is provided with multiple perforations (38), and the bottom end of the inner wall of the fixed cylinder (37) is fixedly connected with a base plate (310); the base plate (310) is provided with multiple water-permeable holes (311), and the center of the base plate (310) is provided with a threaded hole, which is engaged with the screw (32); the lower end of the screw (32) is fixedly connected with a lower baffle (31), the top of the screw (32) is fixedly connected with a retaining ring (34), and a sleeve (35) that slides with the screw (32) is sleeved on the screw (32); a spring (36) is fixedly connected between the sleeve (35) and the lower baffle (31); a sealing plate (33) is fixedly connected to the outer circular surface of the sleeve (35).

3. A hole-sealing device for geological exploration according to claim 2, characterized in that: The cover (1) has a through hole (11) at its center.

4. A hole-sealing device for geological exploration according to claim 2, characterized in that: The diameter of the sealing plate (33) is larger than the diameter of the through hole (11).

5. A hole-sealing device for geological exploration according to claim 2, characterized in that: The diameter of the lower baffle (31) is equal to the inner diameter of the cylinder (2).

6. A hole-sealing device for geological exploration according to any one of claims 3, 4, and 5, characterized in that: The inner side of the elastic band (41) is fixedly connected to a slide cylinder (44); the slide cylinder (44) is provided with a slide rod (48) that slides with it; the slide rod (48) slides with the corresponding through hole (38).

7. A hole-sealing device for geological exploration according to claim 6, characterized in that: The end of the support rod (42) away from the cross section of the cylinder (2) is fixedly connected to the support ring (43); the side of the support ring (43) near the elastic band (41) is fixedly connected to an elastic airbag (49); both ends of the elastic airbag (49) are fixedly connected to the sides of two adjacent sliding cylinders (44); the support ring (43) is provided with a hole that slides with the sliding cylinder (44), and the sliding cylinder (44) passes through the hole on the support ring (43).

8. A hole-sealing device for geological exploration according to claim 7, characterized in that: The side of the slide (44) is provided with a connection hole I (45) that is spatially connected to the support ring (43) and the elastic airbag (49).

9. A hole-sealing device for geological exploration according to claim 8, characterized in that: A guide pipe (47) is fixedly connected between adjacent slide cylinders (44) in the vertical direction, and each slide cylinder (44) is provided with a connection hole II (46) that communicates with the guide pipe (47).

10. The method of using a borehole sealing device for geological exploration according to claim 9, characterized in that: The method of use includes the following steps: Step 1: Insert the cylinder (2) into the hole (5); Step 2: Rotate the screw (32) to block the through hole (11) with the sealing plate (33) and move the lower baffle (31) into the interior of the cylinder (2); Step 3: Continuously rotate the screw (32) to make the lower baffle (31) move upward inside the cylinder (2), thereby causing the elastic band (41) and elastic airbag (49) to be deformed by pressure and abut against the inner wall of the hole (5).

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