Soil crust infiltration characteristic monitoring device

Abstract

The utility model discloses a soil crust infiltration characteristic monitoring device, which belongs to the technical field of soil measuring instruments and comprises a matrix soil column layer, a water accumulation device arranged above the matrix soil column layer and an organic crust layer detachably arranged between the matrix soil column layer and the water accumulation device. The matrix soil column layer comprises a bottom barrel and matrix soil filled in the bottom barrel, the organic crust layer comprises a middle barrel and soil crust filled in the middle barrel, and overflow holes are formed in the bottom of the bottom barrel. The device disclosed by the utility model can be used for measuring the hydraulic conductivity of the soil with the crust, so that the soil crust with different thicknesses can be conveniently replaced, and the measurement accuracy is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil measurement instruments, and particularly relates to a monitoring device for the infiltration characteristics of soil crusts. Background Art

[0002] Measuring the saturated hydraulic conductivity of soil is of great significance for studying soil physical properties. There are some existing devices for measuring the hydraulic conductivity of soil. For example, a soil saturated hydraulic conductivity measuring instrument disclosed in the utility model patent with the publication number of CN 101769850 B can measure the hydraulic conductivity of soil. However, the composition forms of real soil are diverse, and it is difficult for such devices to measure the hydraulic conductivity of soil with crusts. Content of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a monitoring device for the infiltration characteristics of soil crusts, which can measure the hydraulic conductivity of soil with crusts, is convenient for replacing soil crusts with different thicknesses, and has high measurement accuracy.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A monitoring device for the infiltration characteristics of soil crusts of the utility model includes a matrix soil column layer, a water accumulation device arranged above the matrix soil column layer, and an organic crust layer detachably arranged between the matrix soil column layer and the water accumulation device. The matrix soil column layer includes a bottom barrel and matrix soil filled in the bottom barrel. The organic crust layer includes an intermediate barrel and soil crust filled in the intermediate barrel. A water overflow hole is opened at the bottom of the bottom barrel.

[0006] Further, the water accumulation device includes a water accumulation barrel. Pipe clamps are arranged between the intermediate barrel and the water accumulation barrel and between the intermediate barrel and the bottom barrel. Adjacent two barrels are fixedly connected through the pipe clamps.

[0007] Further, the pipe clamp includes a first semi-circular ring and a second semi-circular ring. The first semi-circular ring and the second semi-circular ring form a circular whole ring. The first semi-circular ring and the second semi-circular ring are connected through a locking member.

[0008] Further, a sealing ring is arranged on the inner side of the whole ring. Ring grooves for positioning the sealing ring are arranged on the inner sides of the first semi-circular ring and the second semi-circular ring.

[0009] Further, threaded holes are opened on the sides of the first semi-circular ring and the second semi-circular ring. Screws are fitted in the threaded holes. The inner ends of the threaded holes communicate with the ring grooves.

[0010] Furthermore, through holes are formed in the end face of the integral ring, and a screw rod is inserted through the through holes, and the two pipe clamps are connected by the screw rod.

[0011] Furthermore, the bottom barrel, the middle barrel and the water accumulation barrel are all made of transparent materials.

[0012] Furthermore, the water accumulation device is connected with a steady flow cylinder through a pipeline.

[0013] The beneficial effects of the present utility model are as follows:

[0014] A monitoring device for the infiltration characteristics of soil crust of the present utility model realizes the measurement of the water conductivity of soil with crust by arranging a detachable organic crust layer above the matrix soil quality, and at the same time is convenient for replacing soil crusts with different thicknesses, and has high measurement accuracy.

[0015] Other advantages, objectives and features of the present utility model will be described in the subsequent description, and to some extent will be obvious to those skilled in the art, or those skilled in the art can obtain teachings from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to make the objectives, technical solutions and beneficial effects of the present utility model clearer, the following drawings are provided for description:

[0017] Figure 1 is a schematic structural diagram of the device of the present utility model;

[0018] Figure 2 is Figure 1 an enlarged view at A;

[0019] Figure 3 is a schematic structural diagram of the pipe clamp.

[0020] The reference numerals in the drawings are as follows: matrix soil column layer 1, water accumulation device 2, organic crust layer 3, bottom barrel 4, matrix soil 5, middle barrel 6, soil crust 7, overflow hole 8, pipe clamp 9, first semi-circular ring 10, second semi-circular ring 11, locking member 12, sealing ring 13, annular groove 14, threaded hole 15, screw 16, through hole 17, screw rod 18, pipeline 19, steady flow cylinder 20. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] As Figures 1 to 3As shown in the figure, a monitoring device for the infiltration characteristics of soil crust in the utility model includes a matrix soil column layer 1, a water accumulation device 2 arranged above the matrix soil column layer 1, and an organic crust layer 3 detachably arranged between the matrix soil column layer 1 and the water accumulation device 2. The matrix soil column layer 1 includes a bottom barrel 4 and matrix soil 5 filled in the bottom barrel 4. The lower end of the bottom barrel 4 is sealed at the bottom and provided with an overflow hole 8. The height of the bottom barrel 4 is 10 cm and the diameter is 10 cm. The organic crust layer 3 includes an intermediate barrel 6 and soil crust 7 filled in the intermediate barrel 6. The height of the intermediate barrel 6 is 2 cm, and the upper and lower ends penetrate without a bottom seal, and the diameter is 10 cm. The intermediate barrel 6 forms the soil crust 7 on a 2-cm-high annular disc through indoor artificial simulated rainfall. The bottom of the bottom barrel 4 is provided with an overflow hole 8 for discharging water into a measuring cylinder, which is convenient for measurement and calculation.

[0022] In this embodiment, the water accumulation device 2 includes a water accumulation barrel. Pipe clamps 9 are arranged between the intermediate barrel 6 and the water accumulation barrel and between the intermediate barrel 6 and the bottom barrel 4. The height of the water accumulation barrel is 10 cm and the diameter is also 10 cm. A water supply device is connected in the middle. Adjacent two barrels are fixedly connected through the pipe clamp 9, and adjacent two barrels can also be sealed with adhesive tape to ensure the accuracy of the measurement results.

[0023] In this embodiment, the pipe clamp 9 includes a first semi-circular ring 10 and a second semi-circular ring 11. The first semi-circular ring 10 and the second semi-circular ring 11 form a complete circular ring. The first semi-circular ring 10 and the second semi-circular ring 11 are connected through a locking member 12. Through the locking of the locking member 12, the first semi-circular ring 10 and the second semi-circular ring 11 can be pressed against the outside of the measured cylinder to achieve the fastening effect. A sealing ring 13 is arranged on the inner side of the complete ring for sealing. Ring grooves 14 for positioning the sealing ring 13 are arranged on the inner sides of the first semi-circular ring 10 and the second semi-circular ring 11, which is convenient for installation and positioning and prevents the sealing ring 13 from falling off.

[0024] In this embodiment, threaded holes 15 are formed on the sides of the first semi-circular ring 10 and the second semi-circular ring 11. Screws 16 are fitted in the threaded holes 15. The inner ends of the threaded holes 15 communicate with the ring grooves 14. By rotating the screws 16, the sealing ring 13 can be made to closely adhere to the surface of the clamped cylinder.

[0025] In this embodiment, through holes 17 are formed on the end faces of the complete ring, and screw rods 18 are passed through the through holes 17. The two pipe clamps 9 are connected through the screw rods 18.

[0026] In this embodiment, the bottom barrel 4, the intermediate barrel 6 and the water accumulation barrel are all made of transparent materials for convenient observation.

[0027] In this embodiment, the water accumulation device 2 is connected with a steady flow cylinder 20 through a pipeline 19. The steady flow cylinder 20 is provided with scales and filled with water, which can be used for water supply.

[0028] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and details without departing from the scope defined by the claims of the present invention.

Claims

1. A monitoring device for soil crust infiltration characteristics, characterized in that: The utility model comprises a matrix soil column layer, a water accumulation device arranged above the matrix soil column layer, and an organic crust layer detachably arranged between the matrix soil column layer and the water accumulation device. The matrix soil column layer comprises a bottom barrel and matrix soil filled in the bottom barrel, and the organic crust layer comprises a middle barrel and soil crust filled in the middle barrel. An overflow hole is opened at the bottom of the bottom barrel.

2. A soil crust infiltration characteristic monitoring device according to claim 1, characterized in that: The water accumulation device comprises a water accumulation bucket, and pipe clamps are arranged between the middle bucket and the water accumulation bucket, and between the middle bucket and the bottom bucket, and two adjacent buckets are fixedly connected by the pipe clamps.

3. A monitoring device for soil crust infiltration characteristics according to claim 2, characterized in that: The pipe clamp comprises a first semicircular ring and a second semicircular ring, wherein the first semicircular ring and the second semicircular ring form a circular full ring, and the first semicircular ring and the second semicircular ring are connected by a locking member.

4. A soil crust infiltration characteristic monitoring device according to claim 3, characterized in that: A sealing ring is arranged on the inner side of the full ring, and annular grooves for positioning the sealing ring are arranged on the inner sides of the first semicircular ring and the second semicircular ring.

5. A monitoring device for soil crust infiltration characteristics according to claim 4, characterized in that: The side surfaces of the first semicircular ring and the second semicircular ring are provided with threaded holes, screws are fitted in the threaded holes, and the inner ends of the threaded holes are connected to the annular groove.

6. A soil crust infiltration characteristic monitoring device according to claim 3, characterized in that: A through hole is opened on the end surface of the full ring, a screw rod is passed through the through hole, and the two pipe clamps are connected by the screw rod.

7. A soil crust infiltration characteristic monitoring device according to claim 2, characterized in that: The bottom bucket, the middle bucket and the water storage bucket are all made of transparent materials.

8. The device for monitoring soil crust infiltration characteristics according to claim 1, characterized in that: The water accumulation device is connected with a flow-stabilizing cylinder through a pipeline.

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