Soil infiltration test device convenient to clean

By designing the structure of the graduated cylinder with openings at both ends and the inner filter plate, the problem of the soil permeability test device being difficult to clean was solved, achieving efficient cleaning and simplifying the test tools, thus improving the accuracy and efficiency of the test.

CN223992795UActive Publication Date: 2026-03-13INST OF LAND ENG & TECH SHAANXI PROVINCIAL LAND ENG CONSTR GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing soil permeability testing equipment is not easy to clean, especially when testing multiple different soil samples. Soil residue can affect the accuracy and efficiency of the test, and the cleaning work is time-consuming and labor-intensive.

Method used

Design a graduated cylinder with open ends, and install a filter plate and filter paper inside the graduated cylinder. The filter plate is fixedly installed, and the graduated cylinder is detachably connected to the base. Combined with a timer and a flow guide tube, it facilitates the disassembly and cleaning of the tool.

Benefits of technology

The cleaning process was simplified, the accuracy and efficiency of the tests were improved, the number of tools used was reduced, and the labor intensity and time required for cleaning were decreased.

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Abstract

The soil infiltration test device comprises a measuring cylinder, a filter plate is arranged on the inner side of the measuring cylinder, filter paper is arranged on the upper surface of the filter plate, the two ends of the measuring cylinder are open, a base is connected to the opening of the bottom end of the measuring cylinder, and a water storage cylinder is installed at the opening of the top end of the measuring cylinder. The water storage cylinder and the base are detachably connected with the measuring cylinder, and the base is connected with the bottom end of the measuring cylinder in a sealed mode to ensure that water cannot leak between the bottom end of the measuring cylinder and the base. The two ends of the measuring cylinder are opened, and the filter plate is fixedly arranged on the inner side of the measuring cylinder, so that a funnel can be prevented from being used, and experimental tools needing to be cleaned are reduced; meanwhile, the two ends of the measuring cylinder are open, so that the measuring cylinder can be directly washed conveniently when being cleaned, the washing effect can be better by reversely washing the side, without soil, of the filter plate, and tools for the soil water seepage test can be conveniently and efficiently washed.
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Description

Technical Field

[0001] This utility model relates to the field of experimental tool technology, specifically to a soil infiltration test device that is easy to clean. Background Technology

[0002] Soil permeability testing is an important testing method in many fields such as soil research, agricultural production, and civil engineering. Traditional soil permeability testing apparatus usually consists of a simple combination of a funnel and a graduated cylinder. With the development of technology, some new types of soil permeability testing apparatus have also appeared on the market.

[0003] For example, Chinese Patent Publication No. CN214224882U discloses a permeability test device for measuring the saturated infiltration coefficient of soil. This device includes a support rod with a leveling mechanism and an auxiliary mechanism. A support ring is welded to one end of the support rod, and a sampling cylinder is welded to the other end. A sampling ring blade is welded to the bottom opening of the sampling cylinder, and a foot pedal is welded to the outer wall of the sampling cylinder. This permeability test device allows for undisturbed soil sampling, avoiding damage during transportation and ensuring the accuracy of experimental data. The permeability test can be started simply by flipping the support rod after sampling, making operation simple and convenient. Furthermore, the entire device adopts a shovel-like structural design, reducing the labor intensity of personnel when collecting soil and making it easy to carry, thus broadening its application scenarios and scope.

[0004] The soil permeability testing device provided by the aforementioned patent differs in structure from the traditional soil permeability testing device using a graduated cylinder and funnel. However, like traditional permeability testing devices, it suffers from the problem of inconvenient cleaning. During the test, soil particles easily adhere to the inner wall of the funnel and the wall of the graduated cylinder. Especially when testing different soil samples multiple times, soil residue gradually accumulates, making cleaning extremely tedious, time-consuming, and labor-intensive. Moreover, due to the structural characteristics of the funnel and graduated cylinder, some hard-to-reach areas are difficult to access, resulting in incomplete cleaning. This not only affects the accuracy of subsequent tests, as residual soil may alter the structure and pore condition of the soil being tested later, thus interfering with the permeability test results, but also reduces experimental efficiency and increases experimental costs. Furthermore, the use of tools such as graduated cylinders, funnels, filter paper, and water cups during the test is also cumbersome. Therefore, there is an urgent need in the market for a soil permeability testing device that is easy to clean. Utility Model Content

[0005] The purpose of this invention is to provide a soil infiltration test device that is easy to clean, in order to improve the problems of existing soil permeability test devices that are inconvenient to clean and require too many tools during the test.

[0006] This utility model is implemented as follows:

[0007] A soil infiltration test device that is easy to clean includes a measuring cylinder, a filter plate provided inside the measuring cylinder, and filter paper provided on the upper surface of the filter plate. Both ends of the measuring cylinder are open, and a base is connected to the bottom opening of the measuring cylinder. A water storage cylinder is installed at the top opening of the measuring cylinder. The water storage cylinder and the base are detachably connected to the measuring cylinder. The base and the bottom end of the measuring cylinder are sealed together to ensure that there is no water leakage between the bottom end of the measuring cylinder and the base.

[0008] Preferably, the measuring cylinder has uniform graduation lines on its side along the bottom of the filter plate from top to bottom, and the filter plate and the measuring cylinder are not detachable.

[0009] Preferably, the measuring cylinder is provided with a transition ring at both the top and bottom ends, the inner diameter of the transition ring is the same as the inner diameter of the measuring cylinder, and the transition ring is provided with an external thread.

[0010] Preferably, the base is frustoconical in shape, and the top of the base is provided with a connecting ring, which is threadedly connected to the adapter ring.

[0011] Preferably, the bottom end of the water storage cylinder is provided with a guide pipe, the guide pipe is provided with a ball valve, and the bottom end of the guide pipe is provided with an end cap, the end cap is threadedly connected to the adapter ring at the top of the measuring cylinder, and no sealing treatment is performed between the end cap and the measuring cylinder.

[0012] Preferably, it also includes a timer, and the side of the water storage cylinder near the top is provided with an installation joint, the installation joint is provided with a threaded groove in the middle, and the timer is threadedly connected to the threaded groove.

[0013] Preferably, the timer has a pointer on the front and a switch on the top for controlling the opening and closing of the timer, and a stud on the back of the timer, which is threadedly connected to a threaded groove.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model features an open measuring cylinder at both ends and a filter plate fixed inside the measuring cylinder. This design avoids the need for a funnel, thus reducing the number of experimental tools that require cleaning. Furthermore, the open ends of the measuring cylinder facilitate direct rinsing during cleaning, and the reverse rinsing from the side of the filter plate without soil enhances the rinsing effect, making it convenient and efficient for cleaning tools used in soil permeability testing.

[0016] 2. This utility model has a timer installed on the side of the water storage cylinder. The timer can keep track of the test time, so as to facilitate comparison with other soils. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the measuring cylinder of this utility model;

[0019] Figure 3 This is a structural schematic diagram of the base of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the water storage cylinder of this utility model;

[0021] Figure 5 This is a schematic diagram of the timer of this utility model from a front-end oblique downward view.

[0022] Figure 6 This is a structural schematic diagram of the timer of this utility model from a tilted rear view.

[0023] In the diagram: 1. Measuring cylinder; 11. Filter plate; 12. Scale line; 13. Adapter ring; 2. Base; 21. Connecting ring; 3. Water storage cylinder; 31. Mounting connector; 32. Threaded groove; 33. Guide pipe; 34. Ball valve; 35. End cap; 4. Timer; 41. Pointer; 42. Switch; 43. Stud. Detailed implementation method:

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0026] Example 1

[0027] like Figure 1 and Figure 2As shown, a soil infiltration test device that is easy to clean includes a measuring cylinder 1. A filter plate 11 is provided inside the measuring cylinder 1, and filter paper is provided on the upper surface of the filter plate 11. The measuring cylinder 1 is used to collect leaking water and also to support the soil to be tested. The combination of the filter plate 11 and the filter paper facilitates soil support and prevents soil from leaking to the bottom of the measuring cylinder 1. Both ends of the measuring cylinder 1 are open, allowing for easy rinsing from both ends, avoiding the problem of traditional measuring cylinders being too deep and difficult to clean at the bottom. A base 2 is connected to the bottom opening of the measuring cylinder 1, providing support for the entire test device. A water storage cylinder 3 is installed at the top opening of the measuring cylinder 1. Both the water storage cylinder 3 and the base 2 are detachably connected to the measuring cylinder 1. The water storage cylinder 3 stores the water needed for the test, allowing water to be injected into the soil inside the measuring cylinder 1 when needed. The base 2 and the bottom of the measuring cylinder 1 are sealed together to ensure that there is no water leakage between the bottom of the measuring cylinder 1 and the base 2.

[0028] like Figure 3 As shown, the measuring cylinder 1 has evenly spaced graduation lines 12 along the bottom of the filter plate 11 on its side. These graduation lines 12 are for easy observation of the amount of water that has permeated the soil. The filter plate 11 and the measuring cylinder 1 are not detachable, which prevents the filter plate 11 from detaching from the measuring cylinder 1 and being damaged during cleaning. Both the top and bottom of the measuring cylinder 1 are equipped with adapter rings 13. The inner diameter of the adapter rings 13 is the same as the inner diameter of the measuring cylinder 1, and the adapter rings 13 have external threads. The adapter rings 13 facilitate the threaded connection between the measuring cylinder 1 and the base 2, and this structure of the adapter rings 13, together with the measuring cylinder 1, also facilitates cleaning of the inside of the measuring cylinder 1.

[0029] like Figure 4 As shown, the base 2 is truncated cone-shaped, and the top of the base 2 is provided with a connecting ring 21, which is threadedly connected to the adapter ring 13. This structure facilitates the stable connection of the base 2 to the measuring cylinder 1 and also facilitates the flexible assembly and disassembly of the base 2.

[0030] like Figure 5 As shown, the bottom of the water storage cylinder 3 is equipped with a guide pipe 33, and a ball valve 34 is installed on the guide pipe 33. The guide pipe 33 and the ball valve 34 facilitate the opening and closing of the guide pipe 33, and facilitate the control of whether the water inside the water storage cylinder 3 can flow smoothly into the measuring cylinder 1. The bottom of the guide pipe 33 is equipped with an end cap 35, which is threadedly connected to the adapter ring 13 at the top of the measuring cylinder 1. There is no sealing treatment between the end cap 35 and the measuring cylinder 1. The end cap 35 facilitates a stable connection between the water storage cylinder 3 and the measuring cylinder 1.

[0031] Example 2

[0032] like Figure 1 and Figure 2As shown, a soil infiltration test device that is easy to clean includes a measuring cylinder 1. A filter plate 11 is provided inside the measuring cylinder 1, and filter paper is provided on the upper surface of the filter plate 11. The measuring cylinder 1 is used to collect leaking water and also to support the soil to be tested. The combination of the filter plate 11 and the filter paper facilitates soil support and prevents soil from leaking to the bottom of the measuring cylinder 1. Both ends of the measuring cylinder 1 are open, allowing for easy rinsing from both ends, avoiding the problem of traditional measuring cylinders being too deep and difficult to clean at the bottom. A base 2 is connected to the bottom opening of the measuring cylinder 1, providing support for the entire test device. A water storage cylinder 3 is installed at the top opening of the measuring cylinder 1. Both the water storage cylinder 3 and the base 2 are detachably connected to the measuring cylinder 1. The water storage cylinder 3 stores the water needed for the test, allowing water to be injected into the soil inside the measuring cylinder 1 when needed. The base 2 and the bottom of the measuring cylinder 1 are sealed together to ensure that there is no water leakage between the bottom of the measuring cylinder 1 and the base 2.

[0033] like Figure 3 As shown, the measuring cylinder 1 has evenly spaced graduation lines 12 along the bottom of the filter plate 11 on its side. These graduation lines 12 are for easy observation of the amount of water that has permeated the soil. The filter plate 11 and the measuring cylinder 1 are not detachable, which prevents the filter plate 11 from detaching from the measuring cylinder 1 and being damaged during cleaning. Both the top and bottom of the measuring cylinder 1 are equipped with adapter rings 13. The inner diameter of the adapter rings 13 is the same as the inner diameter of the measuring cylinder 1, and the adapter rings 13 have external threads. The adapter rings 13 facilitate the threaded connection between the measuring cylinder 1 and the base 2, and this structure of the adapter rings 13, together with the measuring cylinder 1, also facilitates cleaning of the inside of the measuring cylinder 1.

[0034] like Figure 4 As shown, the base 2 is truncated cone-shaped, and the top of the base 2 is provided with a connecting ring 21, which is threadedly connected to the adapter ring 13. This structure facilitates the stable connection of the base 2 to the measuring cylinder 1 and also facilitates the flexible assembly and disassembly of the base 2.

[0035] like Figure 5 As shown, the bottom of the water storage cylinder 3 is equipped with a guide pipe 33, and a ball valve 34 is installed on the guide pipe 33. The guide pipe 33 and the ball valve 34 facilitate the opening and closing of the guide pipe 33, and facilitate the control of whether the water inside the water storage cylinder 3 can flow smoothly into the measuring cylinder 1. The bottom of the guide pipe 33 is equipped with an end cap 35, which is threadedly connected to the adapter ring 13 at the top of the measuring cylinder 1. There is no sealing treatment between the end cap 35 and the measuring cylinder 1. The end cap 35 facilitates a stable connection between the water storage cylinder 3 and the measuring cylinder 1.

[0036] like Figure 1 and Figure 4As shown, it also includes a timer 4. The side of the water tank 3 near the top is provided with an installation joint 31. The installation joint 31 is provided with a threaded groove 32 in the middle. The timer 4 is threadedly connected to the threaded groove 32. This structure facilitates the smooth connection of the timer 4 to the water tank 3 and makes it easy to assemble and disassemble the timer 4.

[0037] like Figure 5 and Figure 6 As shown, the timer 4 has a pointer 41 on the front, which is convenient for staff to observe the time. The timer 4 also has a switch 42 on the top, which is used to control the opening and closing of the timer 4. The timer 4 has a stud 43 on the back, which is threadedly connected to the threaded groove 32, making it convenient to disassemble and assemble the timer 4.

[0038] Working principle: During use, place filter paper on filter plate 11, then pour soil from the top of measuring cylinder 1 into the inside of measuring cylinder 1; the soil will fall onto the filter paper. Next, connect water storage cylinder 3 to measuring cylinder 1 and fill it with an appropriate amount of water. Then, install timer 4 on water storage cylinder 3. Open ball valve 34 to allow water from inside water storage cylinder 3 to enter measuring cylinder 1, and simultaneously start timer 4 to begin timing. Observe the water leakage. After the test, disassemble water storage cylinder 3. Since water storage cylinder 3 is not in contact with soil, simply rinse it. Then pour out the water and soil from inside measuring cylinder 1, separate measuring cylinder 1 from base 2, and then clean measuring cylinder 1 from both ends, and clean base 2.

[0039] In summary, compared with the prior art, this application, by setting both ends of the measuring cylinder 1 open and setting a filter plate 11 inside the measuring cylinder 1 with the filter plate 11 fixedly set, can avoid the use of the funnel, thereby reducing the experimental tools that need to be cleaned; at the same time, the opening at both ends of the measuring cylinder 1 makes it convenient to directly rinse the measuring cylinder 1 when cleaning, and the reverse rinsing from the side of the filter plate 11 without soil can make the rinsing effect better, so as to facilitate efficient cleaning of the tools for soil infiltration test.

[0040] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A soil infiltration test device for easy cleaning, comprising a measuring cylinder (1), characterized in that The inside of the measuring cylinder (1) is provided with a filter plate (11), and the upper surface of the filter plate (11) is provided with filter paper, both ends of the measuring cylinder (1) are provided with openings, and the bottom end of the measuring cylinder (1) is connected with a base (2), and the top end of the measuring cylinder (1) is provided with a water storage cylinder (3), and the water storage cylinder (3) and the base (2) are detachably connected with the measuring cylinder (1), and the base (2) and the bottom end of the measuring cylinder (1) are sealingly connected, so as to ensure that the bottom end of the measuring cylinder (1) and the base (2) will not leak water.

2. The easy-to-clean soil infiltration test device according to claim 1, wherein The side surface of the measuring cylinder (1) is uniformly provided with scale lines (12) from top to bottom below the filter plate (11), and the filter plate (11) and the measuring cylinder (1) are not detachable.

3. The easy-to-clean soil infiltration test device according to claim 2, wherein The top end and the bottom end of the measuring cylinder (1) are provided with an adapter ring (13), the inner diameter of the adapter ring (13) is the same as the inner diameter of the measuring cylinder (1), and the adapter ring (13) is provided with external threads.

4. The easy-to-clean soil infiltration test device according to claim 3, wherein The base (2) is a truncated cone, and the top end of the base (2) is provided with a connecting ring (21), and the connecting ring (21) is threadedly connected with the adapter ring (13).

5. The easy-to-clean soil infiltration test device according to claim 3, wherein The bottom end of the water storage cylinder (3) is provided with a flow guide pipe (33), the flow guide pipe (33) is provided with a ball valve (34), and the bottom end of the flow guide pipe (33) is provided with an end cover (35), the end cover (35) is threadedly connected with the adapter ring (13) at the top end of the measuring cylinder (1), and the end cover (35) and the measuring cylinder (1) are not sealed.

6. The easy-to-clean soil infiltration test device according to any one of claims 1-5, characterized in that, It also includes a timer (4), the side surface of the water storage cylinder (3) is provided with a mounting connector (31) near the top end, the middle part of the mounting connector (31) is provided with a threaded groove (32), and the timer (4) is threadedly connected with the threaded groove (32).

7. The easy-to-clean soil infiltration testing device of claim 6, wherein, The front surface of the timer (4) is provided with a pointer (41), and the top end of the timer (4) is provided with a switch (42) for controlling the opening and closing of the timer (4), and the back surface of the timer (4) is provided with a threaded groove (32), and the threaded groove (32) is threadedly connected with the threaded groove (32).

Citation Information

Patent Citations

  • Water seepage test device for measuring saturation infiltration coefficient of soil

    CN214224882U