Layered water stopping device for hydrogeological drilling

Abstract

The utility model relates to the field of hydrogeology, in particular to a layered water stop device for hydrogeology drilling, which comprises a layered water stop pipe body, a component for mounting internal water stop, a first layered cylinder, a second layered cylinder, a first water stop plate, a second water stop plate, a second water stop plate, a third layered cylinder and a fourth layered cylinder, and the first layered cylinder is arranged in the layered water stop pipe body and is used for taking water and stopping water in a first layer; and a first damping reset rod is fixedly mounted above the leakage groove plate. The first layering cylinder, the leakage groove plate, the first damping reset rod, the adjusting sleeve, the abutting strip, the second layering cylinder and the water stopping cylinder are arranged, according to the current layering water taking and water stopping requirements, a water taking device only needs to abut against the adjusting sleeve, the adjusting sleeve is pressed downwards to enable the abutting strip to be inserted into the leakage groove plate, and therefore the first layering cylinder can be rotated; the side, provided with the leakage holes, of the first layering cylinder is attached to the hole of the layering water stop pipe body, water permeates from the outside, or water is directly injected from the inside to the outside, and the upper-layer layering water injection and water taking work can be completed.

Description

Technical Field

[0001] The utility model relates to the field of hydrogeology, in particular to a layered water-stopping device for hydrogeological drilling. Background Art

[0002] Hydrogeology is a branch of geology, which refers to the various changes and movements of groundwater in nature. It mainly studies the distribution and formation of groundwater, the physical properties and chemical composition of groundwater, groundwater resources and their rational utilization, the adverse effects of groundwater on engineering construction and mining and their prevention and control, etc. In the process of hydrogeological drilling construction, a layered water-stopping device is needed. When conducting hydrogeological drilling in areas with multiple aquifers, in order to obtain the water volume, water level, water quality and water temperature data of each aquifer, it is necessary to conduct observations and pumping tests on each aquifer separately.

[0003] After searching, a water-stopping device for stratified water pumping of hydrogeological boreholes with publication number CN212535605U is found, which specifically discloses a water-stopping device for stratified water pumping of hydrogeological boreholes, including a pipe body, an annular water-stopping block is welded on the top of the pipe body, an annular groove is arranged on the top of the connection between the pipe body and the annular water-stopping block, a rubber sealing pad is bonded to the bottom of the inner wall of the annular groove, and a connecting mechanism is arranged on the annular water-stopping block, the connecting mechanism includes a meshing groove, four transmission bevel gears are arranged inside the meshing groove, a screw is bonded inside the transmission bevel gear, a sliding column is sleeved on the screw, and a screw hole is penetrated on the sliding column. The utility model is easy to connect with various types of pump pipes by providing annular grooves, rubber sealing pads and connecting mechanisms, and the connection requires fewer operating steps, which is convenient and quick, easy to use, and effectively improves the scope of application of the utility model, making the applicability of the utility model better.

[0004] During the use of the existing hydrogeological drilling stratification water-stopping device, when encountering a borehole that requires stratified water injection and water extraction, the purpose of stratified water extraction and water stopping is achieved by simply lowering the water-stopping device layer by layer. This operation is not only cumbersome but also delays the overall operation timeliness. In addition, the above-mentioned comparative cases also lack the means for simultaneous stratified water extraction and injection. Therefore, when used for a long time, not only will the timeliness of subsequent water extraction and injection testing of each aquifer be delayed, but the stratified water extraction and water stopping operation is also cumbersome, which reduces the scope of use of the device and reduces its practicality.

[0005] Therefore, it is necessary to invent a layered water-stopping device for hydrogeological drilling to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a stratified water-stopping device for hydrogeological drilling, which realizes the method of simultaneously taking water from three layers through a first stratified cylinder, a leakage groove plate, a first damping reset rod, an adjusting sleeve, a resistance strip, a second stratified cylinder and a water-stopping cylinder, which not only expands the overall use scope of the device, but also avoids the cumbersome operation of lowering the stratified water-stopping pipe body layer by layer for taking water and stopping water, and improves the overall operation timeliness effect, so as to solve the problem that in the prior art, when the stratified water-stopping device for hydrogeological drilling encounters a borehole requiring stratified water injection and water extraction during use, the purpose of stratified water extraction and water stopping is met only by lowering the water-stopping device layer by layer, which is not only cumbersome but also delays the overall operation timeliness, and the above-mentioned comparative case also lacks the means for simultaneously taking water and injecting water in layers, so that when used for a long time, not only the timeliness of subsequent water extraction and injection detection of each aquifer is delayed, but also the cumbersome operation of lowering the water extraction and water stopping layer by layer, which narrows the use scope of the device and reduces the practicality.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a layered water-stopping device for hydrogeological drilling, comprising a layered water-stopping pipe body for installing an internal water-stopping component;

[0008] The first layered cylinder is arranged inside the layered water-stopping pipe body and is used for taking water from the upper layer and stopping water, and a leakage slot plate is fixedly installed inside the first layered cylinder, a first damping reset rod is fixedly installed above the leakage slot plate, an adjustment sleeve is fixedly installed at one end of the first damping reset rod, and a resistance strip is fixedly installed at the bottom of the adjustment sleeve;

[0009] The second layered cylinder is arranged below the first layered cylinder and is used for middle-layer water extraction and water stopping. A water extraction and water stopping hole is opened on the outside of the layered water stopping pipe body. An internal ring plate is fixedly installed inside the second layered cylinder. A limiting block is fixedly installed on the inner wall of the second layered cylinder. A second damping reset rod is fixedly installed above the internal ring plate. A water stop cylinder is fixedly installed on one end of the second damping reset rod. A docking joint is fixedly installed above the water stop cylinder.

[0010] Preferably, a pipe plug is movably connected to the top of the layered water-stopping pipe body, and an embedded groove is provided inside the layered water-stopping pipe body.

[0011] Preferably, a fixing ball is fixedly installed at the bottom of the embedded groove, and a fitting filter screen is arranged inside the embedded groove.

[0012] Preferably, the number of the first damping reset rods is set to six, and the six first damping reset rods are distributed in a ring array on the drain plate.

[0013] Preferably, the number of the limit blocks is set to six, and the six limit blocks are distributed at equal intervals on the second layering cylinder.

[0014] Preferably, the water stop cylinder is movably connected to the second layered cylinder, and the center line of the water stop cylinder coincides with the center line of the second layered cylinder.

[0015] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0016] The utility model is provided with a first stratified cylinder, a leakage groove plate, a first damping reset rod, an adjusting sleeve, a resistance strip, a second stratified cylinder and a water stop cylinder. According to the current stratified water intake and water stop requirements, it is only necessary to make the water intake device resist against the adjusting sleeve, and press down the adjusting sleeve to allow the resistance strip to be inserted into the leakage groove plate. In this way, the first stratified cylinder can be rotated, and the side of the first stratified cylinder with the leakage hole can be fitted with the hole of the stratified water stop pipe body, so that water can penetrate from the outside, or water can be directly injected from the inside to the outside to complete the upper stratified water injection and water intake work. Then, if the first stratified cylinder is not rotated, the adjusting sleeve can be continuously pressed down to allow the resistance strip to pass through the leakage groove. The plate contacts the joint on the water stop cylinder below, so that the joint drives the water stop cylinder to shrink toward the bottom of the second layered cylinder through the second damping reset rod, which will leak out the water-drawing and water-stopping hole in the middle of the layered water stop pipe body, completing the middle-layer water extraction and water injection work. For the bottom-layer water extraction, there is no need to rotate or squeeze any components, and the water injection and water extraction work can be carried out directly through the layered water stop pipe body. In this way, the device has the method of simultaneously extracting water from three layers, which not only expands the overall use range of the device, but also avoids the cumbersome operation of lowering the layered water stop pipe body layer by layer to extract water and stop water, thereby improving the overall operation time efficiency.

[0017] The utility model is provided with a layered water-stopping pipe body, a pipe plug, an embedded groove, a fixed ball and a fitting filter. When the device is used to perform layered water extraction and water-stopping work in a hydrogeological borehole, since mud and sand will directly penetrate in together with water through the voids during the layered water extraction process, such layered water extraction and water injection work will affect the final detection result. A fitting filter can be installed in the layered water-stopping pipe body through the embedded groove. In this way, when the layered water-stopping pipe body is inserted into the borehole, the mud and sand that directly penetrate in together with water from the hole can be effectively blocked, thereby improving the use efficiency and practicability of the layered water-stopping device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2This is a schematic diagram of the structure of the fitted filter screen of the utility model;

[0021] Figure 3 This is a schematic diagram of the first layered tube structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the second layered tube structure of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the water stop cylinder of the utility model.

[0024] Description of reference numerals:

[0025] 1. Layered water-stop pipe body; 2. Pipe plug; 3. Embedded groove; 4. Fixed ball; 5. Fitting filter; 6. First layered cylinder; 7. Leakage slot plate; 8. First damping reset rod; 9. Adjustment sleeve; 10. Resistance strip; 11. Second layered cylinder; 12. Water-stop hole; 13. Built-in ring plate; 14. Limit block; 15. Second damping reset rod; 16. Water-stop cylinder; 17. Butt joint. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-5 The layered water-stopping device for hydrogeological drilling shown comprises a layered water-stopping pipe body 1 for installing internal water-stopping components;

[0028] The first layered tube 6 is arranged inside the layered water-stopping pipe body 1, and is used for taking water from the upper layer and stopping water. A leakage slot plate 7 is fixedly installed inside the first layered tube 6, and a first damping reset rod 8 is fixedly installed above the leakage slot plate 7. An adjustment sleeve 9 is fixedly installed at one end of the first damping reset rod 8, and a resistance strip 10 is fixedly installed at the bottom of the adjustment sleeve 9;

[0029] The second stratified tube 11 is arranged below the first stratified tube 6 and is used for middle-layer water intake and water stopping. A water extraction and stopping hole 12 is opened on the outside of the stratified water stopping pipe body 1. An internal ring plate 13 is fixedly installed inside the second stratified tube 11. A limiting block 14 is fixedly installed on the inner wall of the second stratified tube 11. A second damping reset rod 15 is fixedly installed above the internal ring plate 13. A water stop tube 16 is fixedly installed at one end of the second damping reset rod 15. A docking joint 17 is fixedly installed above the water stop tube 16. If the first stratified tube 6 is not rotated, the adjusting sleeve 9 can be continuously pressed down to allow the resistance strip 10 to pass through the leakage groove plate 7 and resist the docking joint 17 on the water stop tube 16 below, so that the docking joint 17 drives the water stop tube 16 to shrink toward the bottom of the second stratified tube 11 through the second damping reset rod 15. In this way, the water extraction and water stopping hole 12 in the middle of the stratified water stop tube body 1 will leak out, completing the middle-layer water intake and water injection work.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, the top of the layered water-stop pipe body 1 is movably connected with a pipe plug 2, and an embedded groove 3 is opened inside the layered water-stop pipe body 1. The pipe plug 2 can be installed on the layered water-stop pipe body 1 when not in use to avoid backflow of internal water flow, etc., and a fixed ball 4 is fixedly installed at the bottom of the embedded groove 3. A fitting filter screen 5 is arranged inside the embedded groove 3, and the fitting filter screen 5 can be installed in the layered water-stop pipe body 1 through the embedded groove 3. In this way, when the layered water-stop pipe body 1 is inserted into the drilled hole, it can effectively block the mud and sand that penetrates directly from the hole together with the water. The number of the first damping reset rods 8 is set to six, and the six first damping reset rods 8 are distributed in a ring array on the leakage groove plate 7. When there is no operation, the first damping reset rod 8 can drive the adjustment sleeve 9 to retract and rebound, so as to avoid water ingress due to misoperation and thus affect the detection.

[0031] like Figure 1 , Figure 4 and Figure 5 As shown, the number of the limit blocks 14 is set to six, and the six limit blocks 14 are evenly spaced on the second layered cylinder 11. The limit blocks 14 can limit the rising trajectory of the water stop cylinder 16 to prevent the water stop cylinder 16 from exceeding the range of the water pumping and stopping holes 12 when no water is taken or stopped. The water stop cylinder 16 is movably connected to the second layered cylinder 11, and the center line of the water stop cylinder 16 coincides with the center line of the second layered cylinder 11. The water stop cylinder 16 has a simple structure and is easy to operate. If a fault occurs, it is also convenient for maintenance personnel to directly repair and replace it.

[0032] Working principle of the utility model: when performing the stratified water-stopping and water-taking work in the hydrogeological drilling hole, first insert the stratified water-stopping pipe body 1 into the drill hole, and according to the current stratified water-stopping and water-taking demand, take out the water-taking and water-injecting device, insert the water-taking and water-injecting device into the stratified water-stopping pipe body 1 and abut against the adjusting sleeve 9, and then press down the adjusting sleeve 9 to allow the abutting strip 10 to be inserted into the leakage slot plate 7, so that the first stratified tube 6 can be rotated, and the side of the first stratified tube 6 with the leakage hole is fitted with the hole of the stratified water-stopping pipe body 1, and water is discharged from the outside. The upper layer water injection work can be completed by directly injecting water from the inside to the outside, and then the middle layer water injection work can be completed without rotating the first layer tube 6. The adjusting sleeve 9 can be pressed down to allow the resistance strip 10 to pass through the leakage slot plate 7 and resist the docking joint 17 on the water stop tube 16 below, so that the docking joint 17 drives the water stop tube 16 to shrink toward the bottom of the second layer tube 11 through the second damping reset rod 15, so that the water extraction and stopping hole 12 in the middle of the layered water stop tube body 1 will leak out, completing the middle layer water injection. The water is taken out from the three layers and injected into the water. Then, when taking water from the bottom layer, there is no need to rotate or squeeze any components. Water injection and water taking work can be carried out directly through the layered water-stopping pipe body 1. At the same time, during the process of taking water and stopping water, the embedded groove 3 and the fitting filter screen 5 in the layered water-stopping pipe body 1 can effectively block the mud and sand that penetrates directly from the hole together with the water when the layered water-stopping pipe body 1 is inserted into the borehole for taking water, injecting water and stopping water. When the device is not in operation, the second damping reset rod 15 will drive the water-stopping cylinder 16 to extend and retract to contact under the limit block 14, blocking the water-stopping hole 12 to prevent water from entering the layered water-stopping pipe body 1. In this way, the device has a way of taking water from three layers at the same time, which not only expands the overall use range of the device, but also avoids the tedious operation of lowering the layered water-stopping pipe body 1 layer by layer for taking water and stopping water. Finally, after completing the installation and use of all the layered water-stopping devices according to the above operations, the device can be maintained on a daily basis. In this way, the use process of the layered water-stopping device for hydrogeological drilling is completed.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A layered water-stopping device for hydrogeological drilling, characterized by: include A layered water-stopping pipe body (1) is used for installing internal water-stopping components; A first layered cylinder (6) is arranged inside the layered water-stopping pipe body (1) and is used for taking water from the upper layer and stopping water; a leakage slot plate (7) is fixedly installed inside the first layered cylinder (6); a first damping reset rod (8) is fixedly installed above the leakage slot plate (7); an adjustment sleeve (9) is fixedly installed at one end of the first damping reset rod (8); and a resistance strip (10) is fixedly installed at the bottom of the adjustment sleeve (9); The second layered tube (11) is arranged below the first layered tube (6) and is used for water extraction and water stopping in the middle layer. A water extraction and water stopping hole (12) is provided on the outside of the layered water stopping tube body (1). An internal ring plate (13) is fixedly installed inside the second layered tube (11). A limit block (14) is fixedly installed on the inner wall of the second layered tube (11). A second damping reset rod (15) is fixedly installed above the internal ring plate (13). A water stopping tube (16) is fixedly installed at one end of the second damping reset rod (15). A butt joint (17) is fixedly installed above the water stopping tube (16).

2. A layered water-stopping device for hydrogeological drilling according to claim 1, characterized in that: The top of the layered water-stopping pipe body (1) is movably connected to a pipe plug (2), and an embedded groove (3) is provided inside the layered water-stopping pipe body (1).

3. A layered water-stopping device for hydrogeological drilling according to claim 2, characterized in that: A fixing ball (4) is fixedly mounted on the bottom of the embedded groove (3), and a fitting filter screen (5) is arranged inside the embedded groove (3).

4. The stratified water-stopping device for hydrogeological drilling according to claim 1 is characterized by: The number of the first damping reset rods (8) is set to six, and the six first damping reset rods (8) are distributed in a ring array on the drain plate (7).

5. The layered water-stopping device for hydrogeological drilling according to claim 1 is characterized by: The number of the limit blocks (14) is set to six, and the six limit blocks (14) are distributed at equal intervals on the second layering cylinder (11).

6. The layered water-stopping device for hydrogeological drilling according to claim 1 is characterized by: The water stop cylinder (16) is movably connected to the second layer cylinder (11), and the center line of the water stop cylinder (16) coincides with the center line of the second layer cylinder (11).

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