A water seepage test device for water conservancy geological exploration

Abstract

This utility model discloses a seepage test device for water conservancy geological exploration, relating to the field of water conservancy geological exploration technology. The device includes two water injection tanks, an outer ring, an inner ring, a support frame, two L-shaped drain pipes, and two outlet pipes. Each drain pipe has an internal sealing mechanism for sealing its outlet. The sealing mechanism includes a sealing rod, which consists of a piston, a round rod, a disc, and a square block. A connecting rod is fixedly installed at the end of the sealing rod away from the drain pipe, and a roller is rotatably mounted at the end of the connecting rod away from the sealing rod via a mounting frame. By setting up the sealing mechanism, the cooperation of the float, support rod, connecting rod, wedge of the pushing block, and roller, during water injection, the outer and inner rings automatically push the sealing rod to seal the outlet of the drain pipe when the water level rises, thus ensuring that the initial water level of the outer and inner rings is consistent, improving the accuracy of the seepage test.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy geological exploration technology, specifically a seepage test device for water conservancy geological exploration. Background Technology

[0002] In fields such as water conservancy engineering, geological exploration, and environmental engineering, seepage tests are one of the important methods for determining soil permeability. Among them, the double-ring test device is a commonly used test equipment. Based on Darcy's law (Q=K⋅i⋅A), it forms a stable water level difference in the test pit. By measuring the amount of water replenished per unit time (seepage flow rate Q), combined with the hydraulic gradient i and the seepage area A, the permeability coefficient K of the soil layer (unit: cm / s, m / d) is calculated. When conducting seepage tests, water is usually injected into the outer and inner rings based on manual experience. This can easily lead to inconsistent water levels between the inner and outer rings, thus affecting the accuracy of the test results. Secondly, the volume of the water injection tank is limited. When testing in highly permeable strata, water seeps down rapidly, requiring frequent manual water addition. This is not only cumbersome to operate, but may also cause water level fluctuations, affecting the accuracy of the test. Utility Model Content

[0003] To address the issues of inconsistent water levels and limited water tank volume during initial water injection into the inner and outer rings, this invention aims to provide a seepage testing device for hydraulic geological exploration.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a seepage test device for water conservancy geological exploration, comprising two water injection tanks, an outer ring, an inner ring, a support frame, two L-shaped drainage pipes, and two outlet pipes. Each drainage pipe is equipped with a sealing mechanism inside, which is used to seal the outlet of the drainage pipe. The sealing mechanism includes a sealing rod, which is composed of a piston, a round rod, a disc, and a square block. A connecting rod is fixedly installed at the end of the sealing rod away from the drainage pipe. A roller is rotatably mounted on the end of the connecting rod away from the sealing rod via a mounting frame. A pushing block is provided on the side of the roller away from the connecting rod. The pushing block consists of a square block and a wedge block. The wedge block and roller 2 work together. A support rod is fixedly installed at the bottom of the pushing block, and a float is fixedly installed at the bottom of the support rod. A pull plate is fixedly installed at the top edge of the square block of the sealing rod 1. A support plate is slidably installed on the outside of the pull plate. One of the support plates is fixedly connected to one side of the support frame. A limit rod 1 is fixedly installed at the top of the pushing block, and the limit rod 1 is slidably connected to the support plate. A fixing mechanism is provided at the top of the square block of the sealing rod 1 for fixing the sealing rod 1. A water storage mechanism is fixedly installed at the top of the support frame for storing water in the water tank. The fixing mechanism includes a pull rod, which consists of a horizontal round rod, a vertical round rod, and a disc. The pull rod is slidably connected to the support plate. A spring is provided on the outside of the pull rod. The top end of the spring is fixedly connected to the bottom end of the support plate, and the bottom end of the spring is fixedly connected to the disc of the pull rod. The top of the square block of the sealing rod has a slot for cooperating with the pull rod. The bottom end of the pull rod is rotatably mounted with a roller three via a mounting bracket. The top end of the support plate has a through slot, and the pull plate passes through the support plate. Both sides of the pull plate are rotatably mounted with roller one via a mounting bracket, and the roller one fits against the support plate. The upper surface of the inner wall of the support frame has a slot for cooperating with another support plate and is fixedly connected to the upper surface of the inner wall of the support frame. The water tank is fixed to the upper surface of the inner wall of the support frame. Two drain pipes pass through the support frame and are fixedly connected to the corresponding water tanks. Two outlet pipes are fixedly connected to the corresponding drain pipes. The drain pipes are located at the edges of the water tanks.

[0005] Preferably, the water storage mechanism includes a water storage tank, which is fixedly connected to a support frame. A three-way pipe is fixedly installed at the bottom of the water storage tank, and the three-way pipe passes through the support frame. A control valve is fixedly installed on the outside of the outlet end of the three-way pipe. The outlet end of the three-way pipe is fixedly connected to a water injection tank. A limit rod 2 is slidably installed at the top of each water injection tank. A float plate is fixedly installed at the bottom of the limit rod 2. A sealing rod 2 is fixedly installed at the top edge of the float plate. The sealing rod 2 cooperates with the outlet end of the three-way pipe.

[0006] Preferably, a fixing block is fixedly installed on both sides of the outer ring, an L-shaped block is fixedly installed on the top of the fixing block, and a connecting block that works in conjunction with the L-shaped block is fixedly installed on the top of the support frame.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This application sets up a sealing mechanism, in which the float, support rod, connecting rod, wedge of the push block and roller 2 cooperate. During the water injection process, when the water level rises, the outer ring and inner ring will automatically push the sealing rod to block the outlet of the drain pipe, thereby making the initial water level height of the outer ring and inner ring consistent and improving the accuracy of the seepage test. 2. By setting up a water storage mechanism, the design of the water storage tank and the three-way pipe, combined with the automatic sealing function of the float and the second sealing rod, the water can be automatically stopped when the water tank reaches the set water volume, thereby reducing the tedious operation of frequent manual water replenishment during the test of highly permeable formations. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a cross-sectional structural diagram of the sealing mechanism in this utility model.

[0011] Figure 3 This is a front view structural diagram of one of the sealing mechanisms in this utility model.

[0012] Figure 4 This is a schematic diagram of the connection structure between the drainage pipe and the outlet pipe in this utility model.

[0013] Figure 5 This is a schematic diagram of the water storage mechanism in this utility model.

[0014] Figure 6 This is a schematic diagram of the disassembled structure of the connecting block and the L-shaped block in this utility model.

[0015] Figure 7 This utility model Figure 2 Enlarged view of point A in the middle.

[0016] Figure 8 This utility model Figure 2 Enlarged view of point B in the middle.

[0017] Figure 9 This utility model Figure 5 A magnified view of point C in the middle.

[0018] Figure 10 This utility model Figure 6 Enlarged view of point D in the middle.

[0019] In the diagram: 1. Water tank; 12. Outer ring; 13. Inner ring; 14. Support frame; 15. Drain pipe; 16. Outlet pipe; 2. Sealing mechanism; 20. Roller 1; 21. Sealing rod 1; 22. Connecting rod; 23. Roller 2; 231. Limiting rod 1; 24. Pushing block; 25. Support rod; 26. Float; 27. Pull plate; 28. Support plate; 29. ​​Through groove; 3. Fixing mechanism; 31. Pull rod; 33. Spring; 34. Slot; 35. Roller 3; 4. Water storage mechanism; 40. Water storage tank; 41. T-pipe; 42. Control valve; 43. Limiting rod 2; 44. Float plate; 45. Sealing rod 2; 5. Fixing block; 51. L-shaped block; 52. Connecting block; 6. Empty groove. Detailed Implementation

[0020] 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.

[0021] Example: Figure 1-10 As shown, this utility model provides a seepage test device for water conservancy geological exploration, including two water injection tanks 1, an outer ring 12, an inner ring 13, a support frame 14, two L-shaped drainage pipes 15, and two water outlet pipes 16. Each drainage pipe 15 is provided with a sealing mechanism 2 inside, which is used to seal the water outlet of the drainage pipe 15. The sealing mechanism 2 includes a sealing rod 21, which is composed of a piston, a round rod, a disc, and a square block. A connecting rod 22 is fixedly installed at the end of the sealing rod 21 away from the drain pipe 15. A roller 23 is rotatably installed at the end of the connecting rod 22 away from the sealing rod 21 via a mounting bracket. A pushing block 24 is provided on the side of the roller 23 away from the connecting rod 22. The pushing block 24 is composed of a square block and a wedge. The wedge and the roller 23 cooperate with each other. A support rod 25 is fixedly installed at the bottom end of the pushing block 24. A float ball 26 is fixedly installed at the bottom end of the support rod 25. A pull plate 27 is fixedly installed at the top edge of the square block of the sealing rod 21. A support plate 28 is slidably installed on the outside of the pull plate 27. One of the support plates 28 is fixedly connected to one side of the support frame 14. A limit rod 231 is fixedly installed at the top of the pushing block 24. The limit rod 231 is slidably connected to the support plate 28. The top of the square block of the sealing rod 21 is provided with a fixing mechanism 3, which is used to fix the sealing rod 21. A water storage mechanism 4 is fixedly installed at the top of the support frame 14. The water storage mechanism 4 is used to store water in the water tank 1. By setting a sealing mechanism 2, when water is injected into the outer ring 12 and inner ring 13, under the action of buoyancy and the limiting rod 231, the float 26 drives the support rod 25 and the push block 24 to move upward. During the pushing process of the push block 24, the wedge of the push block 24 pushes the roller 23, the connecting rod 22, and the sealing rod 21 to move into the drain pipe 15. When the water in the outer ring 12 and inner ring 13 reaches the required position, the sealing rod 21 seals the outlet of the drain pipe 15, so that the water level of the outer ring 12 and inner ring 13 is consistent at the beginning, which improves the accuracy of the seepage test. The support rod 25 consists of two vertical round rods and one horizontal round rod. Two symmetrical cone rods are installed on both sides of the bottom end of the support frame 14. The limiting rod 231 consists of a large-diameter round rod and a small-diameter round rod.

[0022] The water storage mechanism 4 includes a water storage tank 40, which is fixedly connected to a support frame 14. A three-way pipe 41 is fixedly installed at the bottom of the water storage tank 40, passing through the support frame 14. A control valve 42 is fixedly installed on the outside of the outlet end of the three-way pipe 41. The outlet end of the three-way pipe 41 is fixedly connected to a water injection tank 1. A limit rod 43 is slidably installed at the top of each water injection tank 1. A float 44 is fixedly installed at the bottom of the limit rod 43. A sealing rod 45 is fixedly installed at the top edge of the float 44. The sealing rod 45 cooperates with the outlet end of the three-way pipe 41. By setting up the water storage mechanism 4, the control valve 42 can be opened. Valve 42 allows water storage tank 40 to be injected into two water tanks 1 through three-way pipe 41. As water tank 1 continues to store water, when water comes into contact with float plate 44, the limiting rod 43 limits the movement of the float plate 44, causing the sealing rod 45 to move vertically upward until the sealing rod 45 blocks the outlet of three-way pipe 41, closing the control valve 42. This reduces the tedious operation of frequent manual water replenishment during high-permeability formation tests. The sealing rod 45 consists of a round rod and a piston. The pistons of sealing rod 21 and sealing rod 45 are made of rubber or elastic plastic. The limiting rod 43 consists of a large-diameter round rod and a small-diameter round rod.

[0023] The fixing mechanism 3 includes a pull rod 31, which consists of a horizontal round rod, a vertical round rod, and a disc. The pull rod 31 is slidably connected to the support plate 28. A spring 33 is provided on the outside of the pull rod 31. The top end of the spring 33 is fixedly connected to the bottom end of the support plate 28, and the bottom end of the spring 33 is fixedly connected to the disc of the pull rod 31. The top of the square block of the sealing rod 21 has a slot 34 that cooperates with the pull rod 31. By setting the fixing mechanism 3, the pull rod 31 is inserted into the slot 34, thereby fixing the sealing rod 21 and increasing the stability of the sealing rod 21 in blocking the drain pipe 15.

[0024] The bottom end of the pull rod 31 is rotatably mounted with a roller 35 via a mounting bracket; by setting the roller 35, when the pull rod 31 is disengaged from the slot 34 and contacts the upper surface of the square block of the sealing rod 21, it is easier to move the sealing rod 21.

[0025] A through slot 29 is provided at the top of the support plate 28, and a pull plate 27 passes through the support plate 28. Rollers 20 are rotatably mounted on both sides of the pull plate 27 via mounting brackets. The rollers 20 fit against the support plate 28. By providing the through slot 29, the pull plate 27 can slide on the support plate 28. The rollers 20 reduce resistance and make it easier for the pull plate 27 to move.

[0026] Fixing blocks 5 are fixedly installed on both sides of the outer ring 12. An L-shaped block 51 is fixedly installed on the top of the fixing block 5. A connecting block 52 that works with the L-shaped block 51 is fixedly installed on the top of the support frame 14. By setting the L-shaped block 51, when the support frame 14 and its components need to be placed on the outer ring 12, the outer wall of the connecting block 52 is first aligned with the inner wall of the L-shaped block 51. Then, after the connecting block 52 and the L-shaped block 51 are aligned, the support frame 14 is pressed down to insert the cone rod into the soil, thereby facilitating the installation of the support frame 14 and its components on the top of the outer ring 12 and the inner ring 13.

[0027] The upper inner wall of the support frame 14 has a slot 6 that is used to cooperate with another support plate 28 and is fixedly connected to the upper inner wall of the support frame 14. By setting the slot 6, it is easy to fix the other support plate 28 to the upper inner wall of the support frame 14.

[0028] Water tank 1 is fixed on the inner upper surface of support frame 14. Two drain pipes 15 pass through support frame 14 and are fixedly connected to the corresponding water tank 1. Two water outlet pipes 16 are fixedly connected to the corresponding drain pipes 15. The drain pipes 15 are located at the edge of water tank 1.

[0029] Working principle: In actual use, a pit is dug in the test area using tools, and then the outer ring 12 and inner ring 13 are buried in the soil, keeping the center position of the outer ring 12 and inner ring 13 consistent and the burial height consistent. Then, the outer wall of the connecting block 52 is attached to the inner wall of the L-shaped block 51 until the connecting block 52 and L-shaped block 51 are completely aligned. Then, the support frame 14 is pressed down to insert the cone rod into the soil, thereby allowing the device to be installed on the top of the outer ring 12 and inner ring 13. After installation, first pull the rods 31 on the two support plates 28 upwards, and the springs 33 contract, causing the rods 31 to disengage from the slots 34 on the square block of the sealing rod 21. At the same time, move the pull plate 27 in the opposite direction of the rods 31, so that the sealing rod 21 does not block the outlet of the drain pipe 15, and part of the sealing rod 21 is still inside the drain pipe 15. In the initial state, the large diameter ring of the limiting rod 231 is in contact with the top surface of the support plate 28. Then, water is injected into the left and right water tanks 1 through the water inlet at the top of the water tank 1. The water then flows out through the outlet of the drain pipe 15 and enters the outer ring 12 and inner ring 13 through the outlet pipe 16 (the left water tank 1 is used to inject water into the outer ring 12, and the right water tank 1 is used to inject water into the inner ring 13). When the water in the outer ring 12 and inner ring 13 comes into contact with the float 26, as water is continuously injected into the outer ring 12 and inner ring 13, under the action of buoyancy and the limiting rod 231, the float 26 drives the support rod 25 and the push block 24 to move upward. Under the action of the wedge block of the push block 24, the roller 23, the connecting rod 22, and the sealing rod 21 move towards the pull rod 31. During the movement of the sealing rod 21, the roller 35 slides on the square block of the sealing rod 21, and the rollers 20 on both sides of the pull plate 27 slide on the support plate 28. When the water level in the outer ring 12 and inner ring 13 reaches the required position, the sealing rod 21 blocks the outlet of the drain pipe 15. Under the rebound action of the spring 33, the pull rod 31 is inserted into the slot 34 to fix the sealing rod 21. After the outer ring 12 and inner ring 13 are filled with water, water is added to the water storage tank 40 through the water inlet at the top of the water storage tank 40. Then the water flows into the two water injection tanks 1 through the three-way pipe 41. When the water injection tank 1 is filled with a certain amount of water, under the action of buoyancy and limit rod 2 43, the float plate 44 and the sealing rod 2 45 move upward to block the outlet of the three-way pipe 41. Then the control valve 42 is closed. If the test is to be conducted on a highly permeable formation, fill the water storage tank 40 with water so that water can be added to the water injection tank 1 later.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A seepage test device for hydraulic geological exploration, comprising two water injection tanks (1), an outer ring (12), an inner ring (13), a support frame (14), two L-shaped drainage pipes (15), and two water outlet pipes (16), characterized in that: Each of the drain pipes (15) is provided with a sealing mechanism (2) inside, which is used to seal the outlet of the drain pipe (15); The sealing mechanism (2) includes a sealing rod (21), which is composed of a piston, a round rod, a disc, and a square block. A connecting rod (22) is fixedly installed at the end of the sealing rod (21) away from the drain pipe (15). A roller (23) is rotatably installed at the end of the connecting rod (22) away from the sealing rod (21) via a mounting bracket. A pushing block (24) is provided on the side of the roller (23) away from the connecting rod (22). The pushing block (24) is composed of a square block and a wedge block. The wedge block and the roller (23) interact with each other. When used together, a support rod (25) is fixedly installed at the bottom of the push block (24), a float (26) is fixedly installed at the bottom of the support rod (25), a pull plate (27) is fixedly installed at the top edge of the square block of the sealing rod (21), a support plate (28) is slidably installed on the outside of the pull plate (27), one of the support plates (28) is fixedly connected to one side of the support frame (14), a limit rod (231) is fixedly installed at the top of the push block (24), and the limit rod (231) is slidably connected to the support plate (28); The top of the square block of the sealing rod (21) is provided with a fixing mechanism (3), which is used to fix the sealing rod (21); The top of the support frame (14) is fixedly installed with a water storage mechanism (4), which is used to store water in the water tank (1).

2. The seepage test device for hydraulic geological exploration as described in claim 1, characterized in that, The water storage mechanism (4) includes a water storage tank (40), which is fixedly connected to the support frame (14). A three-way pipe (41) is fixedly installed at the bottom of the water storage tank (40). The three-way pipe (41) passes through the support frame (14). A control valve (42) is fixedly installed on the outside of the outlet end of the three-way pipe (41). The outlet end of the three-way pipe (41) is fixedly connected to the water injection tank (1). A limit rod (43) is slidably installed at the top of each water injection tank (1). A float plate (44) is fixedly installed at the bottom of the limit rod (43). A sealing rod (45) is fixedly installed at the top edge of the float plate (44). The sealing rod (45) and the outlet end of the three-way pipe (41) cooperate with each other.

3. The seepage test device for hydraulic geological exploration as described in claim 1, characterized in that, The fixing mechanism (3) includes a pull rod (31), which consists of a horizontal round rod, a vertical round rod, and a disc. The pull rod (31) is slidably connected to the support plate (28). A spring (33) is provided on the outside of the pull rod (31). The top end of the spring (33) is fixedly connected to the bottom end of the support plate (28), and the bottom end of the spring (33) is fixedly connected to the disc of the pull rod (31). The top end of the square block of the sealing rod (21) is provided with a slot (34) that is used in conjunction with the pull rod (31).

4. The seepage test device for hydraulic geological exploration as described in claim 3, characterized in that, The bottom end of the pull rod (31) is rotatably mounted with roller three (35) via a mounting bracket.

5. The seepage test device for hydraulic geological exploration as described in claim 1, characterized in that, The top of the support plate (28) is provided with a through groove (29), and the pull plate (27) passes through the support plate (28). Both sides of the pull plate (27) are rotatably mounted with rollers (20) through the mounting bracket. The rollers (20) are in contact with the support plate (28).

6. The seepage test device for hydraulic geological exploration as described in claim 1, characterized in that, Both sides of the outer ring (12) are fixedly installed with fixing blocks (5), and the top of the fixing block (5) is fixedly installed with an L-shaped block (51). The top of the support frame (14) is fixedly installed with a connecting block (52) that works in conjunction with the L-shaped block (51).

7. The seepage test device for hydraulic geological exploration as described in claim 1, characterized in that, The upper inner wall surface of the support frame (14) is provided with a slot (6) for use with another support plate (28), and is fixedly connected to the upper inner wall surface of the support frame (14).

8. The seepage test device for hydraulic geological exploration as described in claim 1, characterized in that, The water tank (1) is fixed on the inner upper surface of the support frame (14). Two drain pipes (15) pass through the support frame (14) and are fixedly connected to the corresponding water tank (1). Two water outlet pipes (16) are fixedly connected to the corresponding drain pipes (15). The drain pipes (15) are located at the edge of the water tank (1).

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