Filter layer protection test device for dispersive soil

Abstract

The utility model discloses a dispersive soil filter layer protection test device, which comprises a base and a pressure measuring tube, the outer wall of the base is sleeved with a high-strength organic glass lower tube, and the inner wall of the lower end of the high-strength organic glass lower tube is fixedly connected with a permeable pore plate; the outer wall of the edge side of the high-strength organic glass lower pipe above the permeable pore plate is provided with pressure measuring pipes at equal intervals, the outer wall of the upper end of the high-strength organic glass lower pipe is sleeved with a connecting ring, the inner wall of the upper end of the connecting ring is movably provided with a high-strength organic glass upper pipe, and the outer wall of the upper end of the high-strength organic glass upper pipe is sleeved with a positioning ring; a positioning wall and a clamping rod are fixed to the outer walls of the two sides of the positioning ring correspondingly. According to the filter layer protection test device for the dispersive soil, the sectional type pipe body with the diameter of the high-strength organic glass lower pipe larger than that of the high-strength organic glass upper pipe is adopted, so that seepage water flowing along the side wall of the device is reduced, the side wall effect of the device is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter layer protection test devices, in particular to a filter layer protection test device for dispersed soil. Background Art

[0002] Dispersed soil has low resistance to erosion and is therefore easily dispersed when exposed to water. However, due to its wide distribution in my country, it has to be used as anti-seepage soil in the construction of earth-rock dam projects. Therefore, in order to protect the anti-seepage soil and prevent the seepage and deformation of dispersed soil, a filter layer is usually set on the dispersed soil layer. The filter layer protection test device for dispersed soil is a device that tests whether the filter layer ingredients are reasonable. Its main function is to ensure the effectiveness of the filter layer.

[0003] However, the existing dispersed soil filter layer protection test device has the following problems when used:

[0004] When the diameter of the test device is consistent, the seepage water tends to flow along the side walls of the device instead of fully flowing through the soil for infiltration, which results in uneven flow of the seepage water inside the device and makes the side wall effect obvious. Therefore, the data measured by the test device is not the true average permeability coefficient of the cross section, which reduces the practicality of the device.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original filter layer protection test device for dispersed soil. Utility Model Content

[0006] The utility model aims to provide a filter layer protection test device for dispersed soil, so as to solve the problem that the seepage water in the existing filter layer protection test device for dispersed soil mentioned in the background technology is easy to flow along the side wall of the device, thereby making the side wall effect of the device obvious.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter layer protection test device for dispersed soil, comprising a base and a pressure measuring tube, the outer wall of the base is sleeved with a high-strength organic glass lower tube, and the lower end inner wall of the high-strength organic glass lower tube is fixedly connected with a permeable orifice plate, and pressure measuring tubes are installed at equal intervals on the side outer wall of the high-strength organic glass lower tube above the permeable orifice plate, the upper end outer wall of the high-strength organic glass lower tube is sleeved with a connecting ring, and the upper end inner wall of the connecting ring is movably provided with a high-strength organic glass upper tube, the upper end outer wall of the high-strength organic glass upper tube is sleeved with a positioning ring, and the outer walls on both sides of the positioning ring are respectively fixed with positioning walls and clamping rods, and the inner wall at the end of the positioning wall is provided with a sealing mechanism, and the outer wall of the high-strength organic glass upper tube on the side of the clamping rod is fixedly connected with a stop rod.

[0008] Preferably, the base is threadedly connected to the high-strength organic glass lower tube.

[0009] Preferably, the side walls of the high-strength plexiglass lower tube below the permeable hole plate are respectively installed with a water outlet pipe and a lower exhaust pipe, and the side walls of the high-strength plexiglass upper tube below the positioning ring are respectively installed with an upper exhaust pipe and a water inlet pipe, and the diameter of the high-strength plexiglass lower tube is larger than the diameter of the high-strength plexiglass upper tube.

[0010] Preferably, the connecting ring is threadedly arranged on the high-strength organic glass lower tube and the high-strength organic glass upper tube respectively.

[0011] Preferably, a sealing ring is bonded to the inner wall of the high-strength organic glass lower tube below the high-strength organic glass upper tube, and the sealing ring and the high-strength organic glass upper tube are in close contact.

[0012] Preferably, the positioning ring and the high-strength organic glass upper tube form a rotating structure, and the clamping rod and the stop rod are arranged in close proximity.

[0013] Preferably, the sealing mechanism includes a pull rod, an end cover and a spring, and the pull rod is slidably mounted on the inner wall at the end of the positioning wall, and the end cover is fixedly provided at the lower end of the pull rod, and the upper surface of the end cover on the side of the pull rod is connected to the outer wall of the positioning wall through the spring.

[0014] Preferably, the end cover and the high-strength organic glass upper tube form a sliding structure.

[0015] Compared with the prior art, the beneficial effect of the utility model is as follows: the user sets the high-strength organic glass lower tube on the base and tightens the high-strength organic glass lower tube, then the user pours the filter layer ingredients into the high-strength organic glass lower tube, at this time the filter layer ingredients are accumulated on the permeable hole plate, then the user sets the connecting ring on the high-strength organic glass lower tube and tightens the connecting ring, then the user inserts the high-strength organic glass upper tube into the connecting ring and tightens the high-strength organic glass upper tube, so that the high-strength organic glass upper tube fits the sealing ring, then the user pours dispersed soil into the high-strength organic glass upper tube, and then the user pulls the pull rod, at this time the pull rod moves up relative to the positioning wall and the compression spring deforms, then the user pushes the positioning ring to rotate, then the positioning ring drives the sealing mechanism and the clamping rod to move, and as the clamping rod continues to move, the clamping rod finally fits the stop rod, at this time the end cover and the high-strength organic glass upper tube are aligned, then the user releases the pull rod, and then the spring reset pushes the end cover to move, so that the end cover is stably set on the high-strength organic glass upper tube, thereby completing The device is assembled, and then the user opens the lower exhaust pipe and the upper exhaust pipe to make the air pressure inside and outside the device consistent. Then the user opens the water outlet pipe and the water inlet pipe. Next, the user injects water into the device through the water inlet pipe. At this time, water passes through the dispersed soil in the high-strength organic glass upper tube and enters the high-strength organic glass lower tube. Because the diameter of the high-strength organic glass lower tube is larger than the diameter of the high-strength organic glass upper tube, the flow path of the seepage water is significantly extended, thereby effectively reducing the phenomenon of seepage water flowing along the side wall, thereby reducing the resistance generated by the contact between the liquid and the wall during the flow process, making the flow field more uniform, thereby reducing the influence of the side wall effect, and improving the accuracy of the experimental results. The high-strength organic glass has good transparency, which is convenient for users to intuitively observe the seepage water path, so that users can clearly observe the phenomena and changes during the test. Compared with metal or stainless steel materials of the same size, high-strength organic glass is lighter. At the same time, the pressure measuring tube makes it convenient for users to understand the pressure of the seepage water. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front section structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the side section structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the top view structure of the positioning ring of the utility model;

[0019] Figure 4 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 5 For this utility model Figure 2 Enlarged structural diagram at B in the middle.

[0021] In the figure: 1. base; 2. high-strength plexiglass lower tube; 3. permeable orifice plate; 4. water outlet pipe; 5. lower exhaust pipe; 6. connecting ring; 7. high-strength plexiglass upper tube; 8. sealing ring; 9. upper exhaust pipe; 10. water inlet pipe; 11. positioning ring; 12. positioning wall; 13. sealing mechanism; 1301. pull rod; 1302. end cover; 1303. spring; 14. clamping rod; 15. stop rod; 16. pressure measuring tube. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides a technical solution: a filter layer protection test device for dispersed soil, comprising a base 1, a high-strength organic glass lower tube 2, a permeable orifice plate 3, a water outlet pipe 4, a lower exhaust pipe 5, a connecting ring 6, a high-strength organic glass upper tube 7, a sealing ring 8, an upper exhaust pipe 9, a water inlet pipe 10, a positioning ring 11, a positioning wall 12, a sealing mechanism 13, a pull rod 1301, an end cover 1302, a spring 1303, a clamping rod 14, a stop rod 15 and a pressure measuring tube 16. The outer wall of the base 1 is movably equipped with a high-strength organic glass lower tube 2, and the inner wall of the lower end of the high-strength organic glass lower tube 2 is fixedly provided with a permeable orifice plate 3, and the outer wall of the side of the high-strength organic glass lower tube 2 above the permeable orifice plate 3 is evenly spaced and installed with pressure measuring tubes 16. The base 1 and the high-strength organic glass lower tube 2 are provided with a high-strength organic glass lower tube 2. The threaded setting of the organic glass lower tube 2 is convenient for the user to rotate the base 1 to disassemble and assemble the base 1. The side walls of the high-strength organic glass lower tube 2 below the permeable plate 3 are respectively installed with an outlet pipe 4 and a lower exhaust pipe 5. The side walls of the high-strength organic glass upper tube 7 below the positioning ring 11 are respectively installed with an upper exhaust pipe 9 and an inlet pipe 10. The diameter of the high-strength organic glass lower tube 2 is larger than the diameter of the high-strength organic glass upper tube 7, which is convenient for making the air pressure inside and outside the device consistent through the lower exhaust pipe 5 and the upper exhaust pipe 9, and for the seepage water to enter the device from the inlet pipe 10 and then flow out of the device from the outlet pipe 4. At the same time, when the seepage water in the high-strength organic glass upper tube 7 flows into the high-strength organic glass lower tube 2, the flow path is expanded, thereby effectively reducing the phenomenon of the seepage water flowing along the side wall, such as Figure 1-5As shown, the user sets the high-strength organic glass lower tube 2 on the base 1 and tightens the high-strength organic glass lower tube 2, then the user pours the filter layer ingredients into the high-strength organic glass lower tube 2, at this time the filter layer ingredients are accumulated on the permeable plate 3, then the user sets the connecting ring 6 on the high-strength organic glass lower tube 2 and tightens the connecting ring 6, then the user inserts the high-strength organic glass upper tube 7 into the connecting ring 6 and tightens the high-strength organic glass upper tube 7, so that the high-strength organic glass upper tube 7 fits the sealing ring 8, then the user pours the dispersed soil into the high-strength organic glass upper tube 7, and then the user pulls the pull rod 1301, at this time, the pull rod 1301 moves up relative to the positioning wall 12 and the compression spring 1303 is deformed, and then the user pushes the positioning ring 11 to rotate, and then the positioning ring 11 drives the sealing mechanism 13 and the clamping rod 14 to move, and as the clamping rod 14 continues to move, the clamping rod 14 finally fits the stop rod 15, and at this time the end cover 1302 is aligned with the high-strength organic glass upper tube 7, and then the user releases the pull rod 1301, and then the spring 1303 resets and pushes the end cover 1302 to move, so that the end cover 1302 is stably mounted on the high-strength organic glass upper tube 7, thereby completing the assembly of the device.

[0024] A connecting ring 6 is movably installed on the outer wall of the upper end of the high-strength organic glass lower tube 2, and the inner wall of the upper end of the connecting ring 6 is movably connected to the high-strength organic glass upper tube 7, and a positioning ring 11 is movably provided on the outer wall of the upper end of the high-strength organic glass upper tube 7, and the outer walls on both sides of the positioning ring 11 are respectively fixed with positioning walls 12 and a clamping rod 14, and the outer wall of the high-strength organic glass upper tube 7 on the side of the clamping rod 14 is fixedly connected with a stop rod 15, and the connecting ring 6 is respectively threadedly connected to the high-strength organic glass lower tube 2 and the high-strength organic glass upper tube 7, so that the user can rotate the connecting ring 6 and the high-strength organic glass upper tube 7 to connect the connecting ring 6 and the high-strength organic glass upper tube 7, the inner wall of the high-strength organic glass lower tube 2 below the high-strength organic glass upper tube 7 is fixedly connected with a sealing ring 8, and the sealing ring 8 and the high-strength organic glass upper tube 7 are fitted together, so that the sealing between the connecting ring 6 and the high-strength organic glass upper tube 7 can be improved through the sealing ring 8, and the positioning ring 11 and the high-strength organic glass upper tube 7 form a rotating structure, and the clamping rod 14 and the stop rod 15 are fitted together, so that the user can rotate the positioning ring 11 conveniently, and as the positioning ring 11 continues to rotate, the positioning ring 11 finally drives the clamping rod 14 to fit the stop rod 15, and at this time, the positioning ring 11 drives the sealing mechanism 13 to align with the high-strength organic glass upper tube 7, such as Figure 1-2 and Figure 4-5As shown, the user opens the lower exhaust pipe 5 and the upper exhaust pipe 9, so that the air pressure inside and outside the device is consistent, and then the user opens the water outlet pipe 4 and the water inlet pipe 10. Next, the user injects water into the device through the water inlet pipe 10. At this time, water passes through the dispersed soil in the high-strength organic glass upper tube 7 and enters the high-strength organic glass lower tube 2. Since the diameter of the high-strength organic glass lower tube 2 is larger than the diameter of the high-strength organic glass upper tube 7, the flow path of the seepage water is significantly extended, thereby effectively reducing the phenomenon of seepage water flowing along the side wall, thereby reducing the resistance generated by the contact between the liquid and the wall during the flow process, making the flow field more uniform, thereby reducing the influence of the side wall effect, and improving the accuracy of the experimental results. The high-strength organic glass has good transparency, which is convenient for users to intuitively observe the seepage water path, so as to facilitate users to clearly observe the phenomena and changes during the test. Compared with metal or stainless steel materials of the same size, the high-strength organic glass material is lighter. At the same time, the pressure measuring tube 16 facilitates users to understand the pressure of the seepage water.

[0025] A sealing mechanism 13 is installed on the inner wall at the end of the positioning wall 12, and the sealing mechanism 13 includes a pull rod 1301, an end cover 1302 and a spring 1303. The pull rod 1301 is slidably installed on the inner wall at the end of the positioning wall 12, and the lower end of the pull rod 1301 is fixedly connected with the end cover 1302, and the upper surface of the end cover 1302 on the side of the pull rod 1301 is connected to the outer wall of the positioning wall 12 through the spring 1303, so that the high-strength organic glass upper tube 7 can be sealed by the sealing mechanism 13. At the same time, the spring 1303 elastically supports the end cover 1302, so that the end cover 1302 can be stably mounted on the high-strength organic glass upper tube 7, and the end cover 1302 and the high-strength organic glass upper tube 7 are slidably arranged, so that the end cover 1302 can be slid relative to the high-strength organic glass upper tube 7 for disassembly and assembly.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filter layer protection test device for dispersed soil, comprising a base (1) and a pressure measuring tube (16), characterized in that: The outer wall of the base (1) is sleeved with a high-strength organic glass lower tube (2), and the inner wall of the lower end of the high-strength organic glass lower tube (2) is fixedly connected to a water-permeable orifice plate (3), and pressure measuring tubes (16) are installed at equal intervals on the outer wall of the side of the high-strength organic glass lower tube (2) above the water-permeable orifice plate (3), the upper outer wall of the high-strength organic glass lower tube (2) is sleeved with a connecting ring (6), and the upper inner wall of the connecting ring (6) is movably provided with a high-strength organic glass upper tube (7), the upper outer wall of the high-strength organic glass upper tube (7) is sleeved with a positioning ring (11), and the outer walls on both sides of the positioning ring (11) are respectively fixed with positioning walls (12) and a clamping rod (14), and the inner wall at the end of the positioning wall (12) is provided with a sealing mechanism (13), and the outer wall of the high-strength organic glass upper tube (7) on the side of the clamping rod (14) is fixedly connected with a stop rod (15).

2. The filter layer protection test device for dispersed soil according to claim 1 is characterized in that: The base (1) and the high-strength organic glass lower tube (2) are threadedly connected.

3. The filter layer protection test device for dispersed soil according to claim 1 is characterized in that: A water outlet pipe (4) and a lower exhaust pipe (5) are respectively installed on the side walls of the high-strength organic glass lower tube (2) below the water-permeable orifice plate (3), and an upper exhaust pipe (9) and a water inlet pipe (10) are respectively installed on the side walls of the high-strength organic glass upper tube (7) below the positioning ring (11), and the diameter of the high-strength organic glass lower tube (2) is greater than the diameter of the high-strength organic glass upper tube (7).

4. The filter layer protection test device for dispersed soil according to claim 1 is characterized in that: The connecting ring (6) is respectively threadedly arranged on the high-strength organic glass lower tube (2) and the high-strength organic glass upper tube (7).

5. The filter layer protection test device for dispersed soil according to claim 1 is characterized in that: A sealing ring (8) is bonded to the inner wall of the high-strength organic glass lower tube (2) below the high-strength organic glass upper tube (7), and the sealing ring (8) and the high-strength organic glass upper tube (7) are in close contact.

6. The filter layer protection test device for dispersed soil according to claim 1 is characterized by: The positioning ring (11) and the high-strength organic glass upper tube (7) form a rotating structure, and the clamping rod (14) and the stop rod (15) are arranged in close contact.

7. The filter layer protection test device for dispersed soil according to claim 1 is characterized by: The sealing mechanism (13) includes a pull rod (1301), an end cover (1302) and a spring (1303), and the pull rod (1301) is slidably mounted on the inner wall at the end of the positioning wall (12), and the end cover (1302) is fixedly arranged at the lower end of the pull rod (1301), and the upper surface of the end cover (1302) on the side of the pull rod (1301) is connected to the outer wall of the positioning wall (12) through the spring (1303).

8. The filter layer protection test device for dispersed soil according to claim 7 is characterized in that: The end cover (1302) and the high-strength organic glass upper tube (7) form a sliding structure.

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