Anti-blocking pressurized water experiment device

Abstract

The utility model discloses an anti-blocking pressurized water experiment device, which relates to the technical field of geological survey and comprises a vehicle body, an adjusting mechanism is arranged at one end in the vehicle body, a pressurized water mechanism is arranged in one end of the adjusting mechanism, a water storage tank is arranged at the other end in the vehicle body, and the pressurized water mechanism is connected with the water storage tank through a water inlet pipe. A drainage pipe is arranged on the other side of the water pressing mechanism; an air pump is arranged in the middle in the vehicle body, and an opening is formed in the bottom end of one end in the vehicle body. The device is scientific and novel in structure, and the permeability coefficient of the rock-soil body can be accurately measured through a water pressing experiment, so that underground water flowing can be evaluated, key parameters of a migration path of water in an underground environment can be predicted, and help is provided for geological exploration.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, and more specifically, to a water pressure test device for preventing blockage. Background Technique

[0002] During the process of engineering geological exploration, it is usually necessary to calculate and understand the development of rock mass fractures and water permeability through the method of borehole water pressure test. The water pressure test is a kind of infiltration test carried out in a borehole. It is to isolate a certain length of hole section in the borehole by a plug, and then press water into this hole section at a certain pressure, measure the injected flow rate under the corresponding pressure, and use the injected flow rate value per unit test section length under a certain force to characterize the water permeability of the rock in this hole section, which is a common method for evaluating the permeability of rock mass.

[0003] For example, Chinese Patent CN214944214U discloses a water pressure test device for geological exploration, including an experimental box. The upper surface of the experimental box is open. An armrest frame is installed on the upper side of the rear end of the experimental box. The lower end of the experimental box is installed with rotation shafts arranged at intervals. It realizes the water pressure test by adopting a drilling and water pressure integrated structure, has a small volume, is easy to carry, and can be used to adapt to different terrains. However, since the water pressure test device conducts an infiltration test by applying water pressure into the borehole, after the experiment is over, due to the action of pressure, the backflow of water containing impurities may cause blockage, affecting subsequent water pressure tests.

[0004] Aiming at the problems in the related technology, no effective solution has been proposed yet. Content of the Utility Model

[0005] Aiming at the problems in the related technology, the utility model proposes a water pressure test device for preventing blockage to overcome the above-mentioned technical problems existing in the existing related technology.

[0006] Therefore, the specific technical solution adopted by the utility model is as follows:

[0007] A water pressure test device for preventing blockage, including a vehicle body. One end inside the vehicle body is provided with an adjusting mechanism. One end inside the adjusting mechanism is provided with a water pressure mechanism. The other end inside the vehicle body is provided with a water storage tank. The water pressure mechanism is connected to the water storage tank through a water inlet pipe. The other side of the water pressure mechanism is provided with a drain pipe. An air pump is arranged in the middle of the vehicle body, and an opening is formed at the bottom end of one end inside the vehicle body.

[0008] Further, in order to adjust the position of the water pressure mechanism, when a water pressure test is required, the driving of the motor can be adjusted to drive the moving block to move up and down, and then the bottom end of the water pressure mechanism is inserted into the drilling hole for the water pressure test. The adjusting mechanism includes support frames symmetrically arranged on one side wall of the vehicle body. The top end of the support frame is provided with a frame, and the inside of the frame is provided with a moving block. The middle of one end of the moving block is penetrated by a threaded rod. The top end of the threaded rod penetrates the top end of the frame and is provided with an adjusting motor. Both ends of one end of the moving block are penetrated by guide rods connected to the inner wall of the frame. The other end of the moving block is provided with a clamping plate that cooperates with the water pressure mechanism, and the clamping plate is connected to the moving block by bolts.

[0009] Further, in order to enable the moving block to move up and down under the rotation of the threaded rod, a threaded hole that cooperates with the threaded rod is provided in the middle of the top end of one end of the moving block.

[0010] Further, in order to realize the injection of water pressure into the drilling hole for the water pressure test, and the steering rod can be driven to rotate under the drive of the steering motor, so that the water flow direction can be changed, and after the water pressure test is completed, the backflow water can be prevented from flowing back into the water inlet pipe and the water storage tank to cause blockage. The water pressure mechanism includes an insertion pipe arranged between the clamping plate and the moving block. An installation pipe is arranged inside the insertion pipe, a steering rod is arranged inside the installation pipe, a steering motor is arranged at the top end of the insertion pipe, and the output shaft of the steering motor penetrates the top end of the installation pipe and is connected to the steering rod. A first connecting pipe connected to the water inlet pipe is arranged on one side of the installation pipe, and a second connecting pipe connected to the drain pipe is arranged on the other side of the installation pipe. A channel is opened at the bottom end of the steering rod, and a through hole connected to the channel is opened on the outer side of the steering rod. An electromagnetic flowmeter is arranged at the top end of the outer side of the first connecting pipe.

[0011] Further, in order to ensure the sealing of the drilling hole during the water pressure test, the air pump is used to inflate the airbag, so that the airbag expands and seals the inner wall of the drilling hole, ensuring the accuracy of the water pressure test results. An airbag is sleeved at the bottom of the outer side of the insertion pipe, and a trachea connected to the air pump is arranged on one side of the airbag.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. The structure of the present utility model is scientific and novel. Through the water pressure test, the permeability coefficient of the rock and soil can be accurately measured, so that the key parameters for evaluating groundwater flow and predicting the migration path of water in the underground environment can be obtained, providing help for geological exploration.

[0014] 2. By setting the adjusting mechanism, the position of the water pressure mechanism can be adjusted. When a water pressure test is required, the driving of the motor can be adjusted to drive the moving block to move up and down, and then the bottom end of the water pressure mechanism is inserted into the drilling hole for the water pressure test.

[0015] 3. By setting up a water pressure mechanism, water can be pumped into the borehole for a water pressure test. Moreover, driven by the steering motor, the steering rod can be rotated, thereby changing the water flow direction. After the water pressure test is completed, it can prevent the backflow of water from flowing back into the water inlet pipe and the water storage tank to cause blockage. At the same time, under the action of the airbag, the sealing of the borehole can be ensured during the water pressure test. By inflating the airbag with an air pump, the airbag expands and seals the inner wall of the borehole, ensuring the accuracy of the water pressure test results. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 is a schematic structural diagram of a water pressure test device for preventing blockage according to an embodiment of the present invention;

[0018] Figure 2 is a cross-sectional view of a water pressure test device for preventing blockage according to an embodiment of the present invention;

[0019] Figure 3 is Figure 2 a partial enlarged view of part A in

[0020] Figure 4 is a schematic structural diagram of the water pressure mechanism in a water pressure test device for preventing blockage according to an embodiment of the present invention;

[0021] Figure 5 is a three-dimensional assembly diagram of the water pressure mechanism in a water pressure test device for preventing blockage according to an embodiment of the present invention;

[0022] Figure 6 is a cross-sectional view of the water pressure mechanism in a water pressure test device for preventing blockage according to an embodiment of the present invention.

[0023] In the figure:

[0024] 1. Vehicle body; 2. Adjusting mechanism; 201. Support frame; 202. Frame; 203. Moving block; 2031. Threaded hole; 204. Threaded rod; 205. Adjusting motor; 206. Guide rod; 207. Clamping plate; 3. Water pressure mechanism; 301. Insertion pipe; 3011. Airbag; 3012. Air pipe; 302. Installation pipe; 303. Steering rod; 3031. Channel; 3032. Through hole; 304. Steering motor; 305. First connecting pipe; 3051. Electromagnetic flowmeter; 306. Second connecting pipe; 4. Water storage tank; 5. Water pipe; 6. Drain pipe; 7. Air pump; 8. Opening. Detailed implementation manners

[0025] To further illustrate the embodiments, the present utility model provides drawings, which are part of the disclosure of the present utility model. They are mainly used to illustrate the embodiments and can cooperate with the relevant descriptions in the specification to explain the operating principle of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] According to an embodiment of the present utility model, a water pressure experiment device for preventing blockage is provided.

[0027] Now, the present utility model will be further described in conjunction with the drawings and specific implementation manners. As Figures 1-6 shown, the water pressure experiment device for preventing blockage according to an embodiment of the present utility model includes a vehicle body 1. One end inside the vehicle body 1 is provided with an adjusting mechanism 2. One end inside the adjusting mechanism 2 is provided with a water pressure mechanism 3. The other end inside the vehicle body 1 is provided with a water storage tank 4. The water pressure mechanism 3 and the water storage tank 4 are connected through a water inlet pipe 5. The other side of the water pressure mechanism 3 is provided with a drain pipe 6. A gas pump 7 is arranged in the middle of the vehicle body 1, and an opening 8 is opened at the bottom end of one end inside the vehicle body 1.

[0028] In addition, it should be noted that a water pump connected to the water inlet pipe 5 is arranged inside the water storage tank 4 for sending the water in the water storage tank 4 into the inside of the water inlet pipe 4. This is not shown in the figure and is prior art, so it will not be elaborated here.

[0029] By virtue of the above technical solutions of the present utility model, the structure of the present utility model is scientific and novel. Through the water pressure experiment, the permeability coefficient of the rock and soil mass can be accurately measured, so as to be able to evaluate the groundwater flow and predict the key parameters of the water migration path in the underground environment, providing help for geological exploration.

[0030] In one embodiment, for the adjusting mechanism 2, the adjusting mechanism 2 includes support frames 201 symmetrically arranged on one side wall of the vehicle body 1. At the top of the support frame 201, there is a frame 202. Inside the frame 202, there is a moving block 203. In the middle of one end of the moving block 203, a threaded rod 204 is penetrated. The top of the threaded rod 204 penetrates through the top of the frame 202 and is provided with an adjusting motor 205. At both ends of one end of the moving block 203, guide rods 206 connected to the inner wall of the frame 202 are penetrated. At the other end of the moving block 203, there is a clamping plate 207 that cooperates with the water pressure mechanism 3. The clamping plate 207 is bolted to the moving block 203. In the middle of the top of one end of the moving block 203, there is a threaded hole 2031 that cooperates with the threaded rod 204, so as to realize the position adjustment of the water pressure mechanism 3. When a water pressure test needs to be carried out, the adjusting motor 205 can be driven to drive the moving block 203 to move up and down, and then the bottom end of the water pressure mechanism 3 is inserted into the drilling hole for the water pressure test.

[0031] The working principle of the adjusting mechanism 2 is: the output shaft of the adjusting motor 205 drives the threaded rod 204 to rotate. Under the cooperation of the threaded rod 204 and the threaded hole 2031, the water pressure mechanism 3 is driven to move downward, and then the bottom end of the water pressure mechanism 3 is inserted into the drilling hole for the subsequent water pressure test.

[0032] In one embodiment, for the water pressure mechanism 3, the water pressure mechanism 3 includes an insertion tube 301 arranged between the clamping plate 207 and the moving block 203. Inside the insertion tube 301, there is an installation tube 302. Inside the installation tube 302, there is a steering rod 303. At the top of the insertion tube 301, there is a steering motor 304. The output shaft of the steering motor 304 penetrates through the top of the installation tube 302 and is connected to the steering rod 303. On one side of the installation tube 302, there is a first connecting tube 305 connected to the water inlet pipe 5. On the other side of the installation tube 302, there is a second connecting tube 306 connected to the drain pipe 6. At the bottom end of the steering rod 303, there is a channel 3031. On the outer side of the steering rod 303, there are through holes 3032 connected to the channel 3031. At the outer bottom of the insertion tube 301, there is an airbag 3011 sleeved. On one side of the airbag 3011, there is an air pipe 3012 connected to the air pump 7. At the outer top of the first connecting tube 305, there is an electromagnetic flowmeter 3051, so as to realize the injection of water pressure into the drilling hole for the water pressure test. And by driving the steering rod 303 to rotate under the drive of the steering motor 304, the water flow direction can be changed, and after the water pressure test is completed, the backflow water can be prevented from flowing back into the water inlet pipe 5 and the water storage tank 4 to cause blockage. At the same time, under the action of the airbag 3011, the sealing performance of the drilling hole during the water pressure test can be ensured. The air pump 7 inflates the airbag 3011, so that the airbag bulges and seals the inner wall of the drilling hole, ensuring the accuracy of the water pressure test results.

[0033] In addition, it should be noted that the electromagnetic flowmeter 3051 is equipped with a pressure sensor, which can record the flow rate and pressure data simultaneously.

[0034] The working principle of the water pressure mechanism 3 is as follows: First, after the bottom end of the insertion pipe 301 is inserted into the drill hole, the airbag 3011 is inflated through the air pump 7 and the air pipe 3012 to seal the drill hole. Then, the through hole 3032 is oriented towards the connecting pipe 1 305. After the water enters the connecting pipe 1 305 through the water inlet pipe 5, the water will enter the channel 3031 through the through hole 3032 and fall into the interior of the insertion pipe 301. Then, a water pressure test is carried out by applying water pressure, and the pressure value and water flow rate can be observed through the electromagnetic flowmeter 3051. After the experiment is completed, the output shaft of the steering motor 304 drives the steering rod 303 to rotate, so that the through hole 3032 is oriented towards the connecting pipe 2 306. Then, the water pump is turned off. Due to the pressure inside the drill hole, the water containing impurities will flow back into the insertion pipe 301, and then the flowing back water passes through the insertion pipe 301, the channel 3031, the through hole 3032 and the connecting pipe 2 306 and enters the drain pipe 6, and then it can be discharged, avoiding the blockage of the water inlet pipe 5 and the water storage tank 4.

[0035] To facilitate the understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process will be described in detail below.

[0036] In actual application, first, the water pressure test device is moved to the position to be tested, and the water pressure mechanism 3 is driven into the drill hole to be tested through the adjustment mechanism 2. Then, the water is sent into the water pressure mechanism 3 through the water inlet pipe 5 by the water pump inside the water storage tank 4, and the drill hole is sealed by using the air pump 7. Then, the water is sent into the drill hole through the water pressure mechanism 3 for a water pressure test.

[0037] In addition, it should be supplemented that the specific implementation steps of the permeability coefficient of the rock and soil mass are as follows:

[0038] Record the changes in pressure and flow rate through the electromagnetic flowmeter 3051 equipped with a pressure sensor;

[0039] Apply Darcy's Law to analyze the behavior of water flow through the rock mass;

[0040] According to the collected data and Darcy's Law, calculate the permeability coefficient of the rock mass, observe the anomalies or change trends in the data to evaluate the influence of fractures, pores and other structures;

[0041] Compare the measured permeability data with the geological structure and historical data of the rock mass to analyze its hydrogeological characteristics.

[0042] The above specific implementation steps of the permeability coefficient of the rock and soil mass are prior art, and will not be elaborated here.

[0043] In summary, by means of the above technical solutions of the present utility model, the structure of the present utility model is scientific and novel. Through the constant head test, the permeability coefficient of the rock and soil mass can be accurately measured, so that the key parameters for evaluating groundwater flow and predicting the migration path of water in the underground environment can be obtained, providing assistance for geological exploration; by setting the adjustment mechanism 2, the position of the constant head mechanism 3 can be adjusted. When a constant head test is required, the moving block 203 can be driven by the driving of the adjustment motor 205 to move up and down, and then the bottom end of the constant head mechanism 3 is inserted into the drill hole for the constant head test; by setting the constant head mechanism 3, water can be pumped into the drill hole for the constant head test, and the turning rod 303 can be driven to rotate by the driving of the turning motor 304, so that the water flow direction can be changed. After the constant head test is completed, the backflow water can be prevented from flowing back into the water inlet pipe 5 and the water storage tank 4 to cause blockage. At the same time, under the action of the airbag 3011, the sealing performance of the drill hole during the constant head test can be ensured. The airbag 3011 is inflated by the air pump 7, so that the airbag 3011 expands and seals the inner wall of the drill hole, ensuring the accuracy of the constant head test results.

[0044] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection" and the like shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A plugging-proof water pressure test device, comprising a vehicle body (1), characterized in that, One end inside the vehicle body (1) is provided with an adjusting mechanism (2). One end inside the adjusting mechanism (2) is provided with a water pressure mechanism (3). The other end inside the vehicle body (1) is provided with a water storage tank (4). The water pressure mechanism (3) is connected to the water storage tank (4) through a water inlet pipe (5). The other side of the water pressure mechanism (3) is provided with a drain pipe (6). A gas pump (7) is arranged in the middle inside the vehicle body (1), and an opening (8) is formed at the bottom end of one end inside the vehicle body (1).

2. The anti-blocking water injection test device according to claim 1, characterized in that, The adjusting mechanism (2) includes support frames (201) symmetrically arranged on one side wall of the vehicle body (1). A frame (202) is arranged at the top end of the support frame (201). A moving block (203) is arranged inside the frame (202). A threaded rod (204) penetrates through the middle of one end of the moving block (203). The top end of the threaded rod (204) penetrates through the top end of the frame (202) and is provided with an adjusting motor (205). Guide rods (206) connected to the inner wall of the frame (202) penetrate through both ends of one end of the moving block (203). A clamping plate (207) that cooperates with the water pressure mechanism (3) is arranged at the other end of the moving block (203), and the clamping plate (207) is connected to the moving block (203) through bolts.

3. The anti-blocking water pressure test device according to claim 2, characterized in that, A threaded hole (2031) that cooperates with the threaded rod (204) is arranged in the middle of the top end of one end of the moving block (203).

4. The anti-blocking water injection test device according to claim 3, characterized in that, The water pressure mechanism (3) includes an insertion tube (301) arranged between the clamping plate (207) and the moving block (203). An installation tube (302) is arranged inside the insertion tube (301). A steering rod (303) is arranged inside the installation tube (302). A steering motor (304) is arranged at the top end of the insertion tube (301), and the output shaft of the steering motor (304) penetrates through the top end of the installation tube (302) and is connected to the steering rod (303). A first connecting tube (305) connected to the water inlet pipe (5) is arranged on one side of the installation tube (302), and a second connecting tube (306) connected to the drain pipe (6) is arranged on the other side of the installation tube (302).

5. The anti-blocking water pressure test device according to claim 4, characterized in that, A channel (3031) is formed at the bottom end of the steering rod (303), and a through hole (3032) connected to the channel (3031) is formed on the outer side of the steering rod (303).

6. A plugging prevention water injection test device according to claim 4 or 5, characterized in that, An airbag (3011) is sleeved on the outer bottom of the insertion tube (301), and an air tube (3012) connected to the gas pump (7) is arranged on one side of the airbag (3011).

7. A plugging prevention water injection test device according to claim 5, characterized in that, An electromagnetic flowmeter (3051) is arranged at the outer top end of the first connecting tube (305).

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