A layered water stop device for geological drilling

Abstract

The utility model discloses a layered water stop device for geological drilling, including first pipe body, second pipe body and taper pipe, the utility model discloses when using, the device of assembled good is placed in the hole of drilling, air pump works, and through third connecting air pipe, first connecting air pipe and second connecting air pipe, the inflation of annular air bag is combined closely with the borehole, realizes the layering to borehole, according to the water sample of the water-bearing layer required, corresponding first electric cylinder mobile end is moved with first plug, opens the water inlet, and the water in water-bearing layer enters the device through the water inlet, and the water in device will gather in concave groove, and the water in concave groove is extracted by water pump through second water suction pipe, realizes sampling, after sampling is completed, first electric cylinder mobile end pushes first plug and closes the water inlet that opens, similarly, repeats the above steps, realizes sampling to different water-bearing layer.

Description

Technical Field

[0001] This utility model relates to the technical field of layered water-stopping devices, specifically a layered water-stopping device for geological drilling. Background Technology

[0002] When conducting hydrogeological drilling in areas with multiple aquifers, in order to obtain data on the water volume, water level, water quality, and water temperature of each aquifer, it is necessary to conduct observations and pumping tests for each aquifer separately. According to the design requirements, the work of isolating (groups, sections) from other aquifers one by one from bottom to top is called stratified water sealing. When performing stratified water sealing, it is necessary to use devices to achieve the purpose of stratified water sealing. Such devices are called stratified water sealing devices.

[0003] However, current stratified water-stopping devices for geological drilling are inconvenient to use a single water pump to extract samples from different aquifers. To address this issue, a stratified water-stopping device for geological drilling is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a layered water-stopping device for geological drilling to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A layered water-stopping device for geological drilling includes a first pipe body, a second pipe body, and a conical pipe. Connecting rings are fixedly installed at both ends of the first pipe body, both ends of the second pipe body, and the top of the conical pipe. A second pipe body is positioned above the conical pipe, and multiple first pipe bodies are positioned above the second pipe body. The conical pipe, second pipe body, and first pipe bodies are fixedly connected by bolts passing through adjacent connecting rings. A top plate is positioned above the uppermost first pipe body, and the top plate is fixedly connected to adjacent connecting rings by bolts. An air pump and a water pump are fixedly installed on the top of the top plate. Annular airbags are fixedly connected to the outer walls of both the first and second pipe bodies. A first connecting air pipe is provided between the annular airbags on the same pipe body, and both ends of the first connecting air pipe are connected to the corresponding annular airbags. Annular airbags between adjacent pipe bodies are... A second connecting air pipe is provided, which passes through the corresponding connecting ring and is connected to the corresponding annular airbag. The top of the uppermost annular airbag is fixedly connected to a third connecting air pipe, which passes through the connecting ring and the top plate and is connected to the air pump. The side walls of the first and second pipes have water inlets. A first housing is fixedly installed inside the first pipe, and a second housing is fixedly installed inside the second pipe. A first electric cylinder is fixedly installed inside the first and second housings. The movable end of the first electric cylinder passes through the corresponding side wall of the first and second housings and is fixedly installed with a first plug. The first plug is adapted to the water inlet. A concave groove is fixedly installed inside the conical tube. The input end of the water pump is fixedly connected to a second water pumping pipe, and the other end of the second water pumping pipe passes through the top plate to the concave groove.

[0007] As a further embodiment of this utility model: a water outlet is provided at the bottom of the concave groove, a second electric cylinder is fixedly installed at the bottom of the second housing, the movable end of the second electric cylinder passes through the second housing and is fixedly connected to a second plug that matches the water outlet, a three-way valve is provided on the second water pumping pipe, the other end of the three-way valve is fixedly connected to the first water pumping pipe, and the other end of the first water pumping pipe passes through the top plate and the concave groove to the bottom of the conical tube.

[0008] As a further improvement of this utility model: a second rubber pad is fixedly connected to the inner wall of the outlet, and a first rubber pad is fixedly connected to the inner wall of the inlet.

[0009] As a further embodiment of this utility model: support plates are provided on both sides of the first plug, and the two ends of the support plates are fixedly connected to the corresponding first pipe body, second pipe body, first shell and second shell. The support plates are provided with guide grooves, and guide heads are slidably connected in the guide grooves. The guide heads are fixedly connected to the side wall of the first plug.

[0010] As a further improvement of this utility model, a cover plate is fixedly installed at the openings on the side walls of the first and second housings by bolts.

[0011] As a further improvement of this utility model, lifting rings are symmetrically fixedly installed on the top of the top plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In use, the assembled device is placed inside the drilled hole. The air pump operates, inflating the annular airbag through the third, first, and second connecting air pipes. The annular airbag expands and tightly integrates with the borehole, achieving stratification of the borehole. When a water sample is required from the desired aquifer, the corresponding movable end of the first electric cylinder moves with the first plug, opening the water inlet. Water from the aquifer enters the device through the inlet and collects in the concave groove. The water pump then draws the water from the concave groove through the second suction pipe, thus achieving sampling. After sampling, the movable end of the first electric cylinder pushes the first plug to close the opened water inlet. Similarly, the above steps are repeated to sample different aquifers.

[0014] 2. When this utility model is in use, the movable end of the second electric cylinder moves upward with the second plug, the water outlet opens, and the water in the concave groove is discharged into the cone tube. Similarly, when it is necessary to sample water from another aquifer, water enters the device from the corresponding water inlet to rinse the concave groove, so as to avoid interference between water from different aquifers and the water sample. The rinsed water enters the cone tube through the water outlet so that the water pump can discharge the water in the cone tube through the first water pumping pipe. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a layered water-stopping device for geological drilling.

[0016] Figure 2 This is a cross-sectional view of a layered water-stopping device for geological drilling.

[0017] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0018] Figure 4 for Figure 2 A magnified view of a section at point B.

[0019] Figure 5 This is a cross-sectional view of a layered water-stopping device for geological drilling.

[0020] In the diagram: 1. First pipe body; 2. Second pipe body; 3. Conical pipe; 4. Top plate; 5. Lifting ring; 6. Air pump; 7. Water pump; 8. Connecting ring; 9. Annular airbag; 10. First connecting air pipe; 11. Second connecting air pipe; 12. Third connecting air pipe; 13. First water suction pipe; 14. Second water suction pipe; 15. Three-way valve; 16. First housing; 17. Second housing; 18. First electric cylinder; 19. First plug; 20. Water inlet; 21. First rubber pad; 22. Cover plate; 23. Second electric cylinder; 24. Concave groove; 25. Second plug; 26. Water outlet; 27. Second rubber pad; 28. Support plate; 29. ​​Guide groove; 30. Guide head. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5In this embodiment of the present invention, a layered water-stopping device for geological drilling includes a first pipe body 1, a second pipe body 2, and a conical pipe 3. Connecting rings 8 are fixedly installed at both ends of the first pipe body 1, both ends of the second pipe body 2, and the top of the conical pipe 3. A second pipe body 2 is positioned above the conical pipe 3, and multiple first pipe bodies 1 are positioned above the second pipe body 2. The conical pipe 3, the second pipe body 2, and the first pipe bodies 1 are fixedly connected by bolts through adjacent connecting rings 8. A top plate 4 is positioned above the uppermost first pipe body 1, and the top plate 4 is fixedly connected to adjacent connecting rings 8 by bolts. An air pump 6 and a water pump 7 are fixedly installed on the top of the top plate 4. Annular airbags 9 are fixedly connected to the outer walls of both the first pipe body 1 and the second pipe body 2. A first connecting air pipe 10 is provided between the annular airbags 9 on the same pipe body, and both ends of the first connecting air pipe 10 are connected to the corresponding annular airbags 9. A second connecting air pipe 11 is provided between the annular airbags 9 of adjacent pipe bodies, and the second connecting air pipe 11 passes through... The corresponding connecting ring 8 is connected to the corresponding annular airbag 9. The top of the uppermost annular airbag 9 is fixedly connected to a third connecting air pipe 12. The third connecting air pipe 12 passes through the connecting ring 8 and the top plate 4 in sequence and is connected to the air pump 6. The side walls of the first pipe body 1 and the second pipe body 2 are provided with water inlets 20. The first housing 16 is fixedly installed inside the first pipe body 1, and the second housing 17 is fixedly installed inside the second pipe body 2. The first electric cylinder 18 is fixedly installed inside the first housing 16 and the second housing 17. The movable end of the first electric cylinder 18 passes through the corresponding side wall of the first housing 16 and the second housing 17 and is fixedly installed with a first plug 19. The first plug 19 is adapted to the water inlet 20. The conical tube 3 is fixedly installed with a concave groove 24. The input end of the water pump 7 is fixedly connected to a second water pumping pipe 14. The other end of the second water pumping pipe 14 passes through the top plate 4 and into the concave groove 24. The second water pumping pipe 14 is composed of multiple sections of flexible hose and is connected together by a pipe joint for easy assembly.

[0023] In use, the assembled device is placed inside the drilled hole. The air pump 6 operates, inflating the annular airbag 9 through the third connecting air pipe 12, the first connecting air pipe 10, and the second connecting air pipe 11. The annular airbag 9 expands and tightly integrates with the borehole, achieving stratification of the borehole. When a water sample is required from the desired aquifer, the corresponding movable end of the first electric cylinder 18 moves with the first plug 19, opening the water inlet 20. Water from the aquifer enters the device through the water inlet 20 and collects in the concave groove 24. The water pump 7 extracts the water from the concave groove 24 through the second suction pipe 14, thus achieving sampling. After sampling, the movable end of the first electric cylinder 18 pushes the first plug 19 to close the opened water inlet 20. Similarly, the above steps are repeated to sample different aquifers.

[0024] The concave groove 24 has a water outlet 26 at its bottom. A second electric cylinder 23 is fixedly installed inside the bottom of the second housing 17. The movable end of the second electric cylinder 23 passes through the second housing 17 and is fixedly connected to a second plug 25 that matches the water outlet 26. A three-way valve 15 is provided on the second water suction pipe 14. The other end of the three-way valve 15 is fixedly connected to the first water suction pipe 13. The first water suction pipe 13 is composed of multiple sections of flexible hose and is connected together by pipe fittings for easy assembly. The first water suction pipe 13 and the second water suction pipe 14 are fixed to their corresponding positions by fixing clips. On the first housing 16 and the second housing 17, the other end of the first water-drawing pipe 13 passes through the top plate 4 and the concave groove 24 to the bottom of the conical tube 3. The movable end of the second electric cylinder 23 moves upward with the second plug 25, and the water outlet 26 opens, draining the water in the concave groove 24 into the conical tube 3. Similarly, when it is necessary to sample water from another aquifer, water enters the device from the corresponding water inlet 20 to rinse the concave groove 24. The rinsed water enters the conical tube 3 through the water outlet 26 so that the water pump 7 can drain the water in the conical tube 3 through the first water-drawing pipe 13.

[0025] A second rubber pad 27 is fixedly connected to the inner wall of the outlet 26, and a first rubber pad 21 is fixedly connected to the inner wall of the inlet 20. The first rubber pad 21 and the second rubber pad 27 are provided to increase the sealing between the first plug 19 and the inlet 20 and the second plug 25 and the outlet 26.

[0026] The first plug 19 is provided with support plates 28 on both sides. The two ends of the support plates 28 are fixedly connected to the corresponding first tube 1, second tube 2, first shell 16 and second shell 17. The support plates 28 are provided with guide grooves 29. Guide heads 30 are slidably connected in the guide grooves 29. The guide heads 30 are fixedly connected to the side wall of the first plug 19. During use, the stability of the first plug 19 is increased under the joint guiding action of the guide heads 30 fixedly connected to the side wall of the first plug 19 and the guide grooves 29 provided in the support plates 28 during the movement of the first plug 19.

[0027] A cover plate 22 is fixedly installed at the opening on the side wall of the first housing 16 and the second housing 17 by bolts. The opening is opened by removing the cover plate 22, which facilitates the inspection and maintenance of the first electric cylinder 18 and the second electric cylinder 23 inside the first housing 16 and the second housing 17.

[0028] The top of the top plate 4 is symmetrically fixed with lifting rings 5, which facilitate the lifting and installation by the lifting device.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A layered water-stopping device for geological drilling, comprising a first pipe body (1), a second pipe body (2), and a conical pipe (3), characterized in that: Connecting rings (8) are fixedly installed at both ends of the first tube (1), both ends of the second tube (2), and the top of the tapered tube (3). The second tube (2) is set above the tapered tube (3), and multiple first tubes (1) are set above the second tube (2). The tapered tube (3), the second tube (2), and the first tubes (1) are fixedly connected by bolts through adjacent connecting rings (8). A top plate (4) is set above the uppermost first tube (1), and the top plate (4) is bolted to the adjacent connecting rings (8). Fixed connection, an air pump (6) and a water pump (7) are fixedly installed on the top of the top plate (4), and annular airbags (9) are fixedly connected to the outer walls of the first pipe body (1) and the second pipe body (2). A first connecting air pipe (10) is provided between the annular airbags (9) on the same pipe body. The two ends of the first connecting air pipe (10) are connected to the corresponding annular airbags (9). A second connecting air pipe (11) is provided between the annular airbags (9) of adjacent pipe bodies. The second connecting air pipe (11) passes through the corresponding connecting ring (8). The uppermost annular airbag (9) is connected to the corresponding ring airbag (9). The top of the uppermost annular airbag (9) is fixedly connected to a third connecting air pipe (12). The third connecting air pipe (12) passes through the connecting ring (8) and the top plate (4) and is connected to the air pump (6). The first pipe body (1) and the second pipe body (2) have water inlets (20) on their side walls. The first pipe body (1) is fixedly installed with a first housing (16), and the second pipe body (2) is fixedly installed with a second housing (17). The first housing (16) and the second... A first electric cylinder (18) is fixedly installed inside the housing (17). The movable end of the first electric cylinder (18) passes through the corresponding side wall of the first housing (16) and the second housing (17) and is fixedly installed with a first plug (19). The first plug (19) is adapted to the water inlet (20). A concave groove (24) is fixedly installed inside the cone tube (3). The input end of the water pump (7) is fixedly connected to a second water pumping pipe (14). The other end of the second water pumping pipe (14) passes through the top plate (4) to the concave groove (24).

2. The layered water-stopping device for geological drilling according to claim 1, characterized in that: The concave groove (24) has an outlet (26) at the bottom. The second electric cylinder (23) is fixedly installed at the bottom of the second housing (17). The movable end of the second electric cylinder (23) passes through the second housing (17) and is fixedly connected to a second plug (25) that matches the outlet (26). A three-way valve (15) is provided on the second water pipe (14). The other end of the three-way valve (15) is fixedly connected to the first water pipe (13). The other end of the first water pipe (13) passes through the top plate (4) and the concave groove (24) to the bottom of the cone tube (3).

3. A layered water-stopping device for geological drilling according to claim 2, characterized in that: A second rubber pad (27) is fixedly connected to the inner wall of the outlet (26), and a first rubber pad (21) is fixedly connected to the inner wall of the inlet (20).

4. A layered water-stopping device for geological drilling according to claim 1, characterized in that: The first plug (19) is provided with support plates (28) on both sides. The two ends of the support plates (28) are fixedly connected to the corresponding first pipe (1), second pipe (2), first shell (16) and second shell (17). The support plates (28) are provided with guide grooves (29). A guide head (30) is slidably connected in the guide grooves (29). The guide head (30) is fixedly connected to the side wall of the first plug (19).

5. A layered water-stopping device for geological drilling according to claim 1, characterized in that: A cover plate (22) is fixedly installed at the openings on the side walls of the first housing (16) and the second housing (17) by bolts.

6. A layered water-stopping device for geological drilling according to claim 1, characterized in that: The top plate (4) is symmetrically fixed with lifting rings (5).

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