Soil water sampling tool

Abstract

The utility model relates to the technical field of soil water sampling instruments, in particular to a soil water sampling tool which comprises a filtering water collecting barrel capable of being inserted into ground soil, a sealing cover and an inserting end are arranged at the upper end and the lower end of the filtering water collecting barrel respectively, a plurality of water permeable holes are formed in the side portion of the filtering water collecting barrel, and a sampling pipe is installed in the inserting end. Soil water is collected in a permeation mode, the flow velocity of the soil water is reduced, and the amount of impurity particles wrapped in the soil water is reduced, so that the content of the impurity particles in the collected soil water is reduced, and the situation that soluble impurities are soaked in water for a long time, and the detection result is affected is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of soil water sample collection equipment, in particular to a soil water sampling tool. Background Art

[0002] Most plant nutrients are dissolved in water and then transported to plant roots for absorption; whether the roots absorb plant nutrients through mass flow, diffusion or interception, it is all done in the soil solution; soil conditions have a great impact on crop growth; in order to ensure crop yields, the quality and moisture content of soil water need to be tested;

[0003] The soil water sampler widely used at present consists of two parts: a sampling tube and an air pump. The head of the sampling tube is a porous clay head, on which a PVC tube is connected. After the sampling tube is inserted into the soil layer, the air pump is used to reduce the air pressure in the PVC tube, and the soil water enters the PVC tube from the porous clay head to complete the collection. However, the soil water collected in this way enters the porous clay head through the air pressure difference, and will carry some impurity particles, affecting the sampling effect. Utility Model Content

[0004] In order to achieve the purpose of reducing the content of impurity particles in the collected soil water, the utility model adopts the following technical solutions:

[0005] The utility model aims to provide a method for collecting soil water by infiltration, so that the soil water flows slowly, reducing the amount of impurity particles carried by the soil water, thereby reducing the content of impurity particles inside the collected soil water, and avoiding soluble impurities from being soaked in water for a long time, which affects the detection results.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a soil water sampling tool, comprising a filtering water collecting cylinder which can be inserted into the ground soil.

[0007] Among them, the upper and lower ends of the filter water collecting cylinder of the present application are respectively provided with a sealing cover and an insertion end, a plurality of water-permeable holes are provided on the side of the filter water collecting cylinder, and a sampling tube is installed in the insertion end.

[0008] The beneficial effects of the utility model are: collecting soil water by infiltration, reducing the flow rate of soil water, reducing the amount of impurity particles carried by soil water, thereby reducing the content of impurity particles inside the collected soil water, and avoiding soluble impurities from being soaked in water for a long time, which affects the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The following drawings are intended only to illustrate and explain the present invention, wherein:

[0010] Figure 1It is a schematic diagram of the overall structure of the soil water sampling tool of the utility model;

[0011] Figure 2 It is a cross-sectional schematic diagram of the soil water sampling tool of the utility model as a whole;

[0012] Figure 3 This is a schematic diagram of the structure of the soil water sampling tool of the utility model. Figure 1 ;

[0013] Figure 4 This is a schematic diagram of the structure of the soil water sampling tool of the utility model. Figure 2 ;

[0014] Figure 5 This is a schematic diagram of the structure of the soil water sampling tool of the utility model. Figure 3 ;

[0015] Figure 6 This is a schematic diagram of the structure of the soil water sampling tool of the utility model. Figure 4 .

[0016] In the figure: dustproof sleeve 11; placement edge 12; pressure rod 13; filter water collection cylinder 21; insertion end 22; sealing cover 23; secondary filter screen 24; handle 25; annular rubber sleeve 26; sampling tube 31; limit plate 32; cone surface 33; damping plate 34. DETAILED DESCRIPTION

[0017] In order to achieve the above purpose, the utility model provides a soil water sampling tool, including a filter water collecting cylinder 21 that can be inserted into the ground soil, a plurality of water permeable holes are arranged on the side of the filter water collecting cylinder 21, and a sampling tube 31 is installed in the filter water collecting cylinder 21.

[0018] The specific embodiments of the present utility model are described below.

[0019] Reference Figure 2-3 and Figure 5 As shown, it is described that the soil water sampling tool provided by the utility model reduces the content of impurity particles in the collected soil water and avoids soluble impurities from being soaked in water for a long time, which affects the detection results.

[0020] During the soil water sampling process, the water seeping out of the soil passes through the water-permeable holes and slowly enters the filter water collection cylinder 21 and is collected by the sampling tube 31;

[0021] Because the impurity particles in the soil may contain soluble substances, the dissolution state of the soluble substances in water-containing soil is different from that in direct water.

[0022] This method of collecting soil water by infiltration can reduce the flow rate of soil water and the amount of impurity particles carried by soil water, thereby reducing the content of impurity particles inside the collected soil water and avoiding soluble impurities from being soaked in water for a long time, which may affect the test results.

[0023] Furthermore, a secondary filter screen 24 may be fixedly installed in the filter water collecting cylinder 21 to further enhance the interception effect of foreign particles.

[0024] Reference Figure 1-2 and Figure 5 As shown, an embodiment of the soil water sampling tool provided by the utility model is described, which prevents the water entering the sampling tube 31 from re-seeping into the soil, so as to detect the water content of the soil:

[0025] The upper and lower ends of the filter water collection cylinder 21 of the present application are respectively provided with a sealing cover 23 and an insertion end 22 , and a sampling tube 31 is installed in the insertion end 22 .

[0026] The sampling tube 31 is located lower than the water permeable hole, so that the water entering the sampling tube 31 will not seep back into the soil, so as to detect the water content of the soil.

[0027] Reference Figure 1-2 As shown, an embodiment of the soil water sampling tool provided by the utility model to maintain the cleanliness of the inside of the filter water collection cylinder 21 is described:

[0028] The connection between the filter water collecting cylinder 21 and the insertion end 22 of the present application is provided with an inclined surface extending and converging along the direction of the insertion end 22 .

[0029] When the soil water sampling tool is pressed into the ground, the inclined surface contacts the soil in advance, which reduces the impurity particles in the soil from entering the filter water collection cylinder 21 when the soil water sampling tool is installed, thereby maintaining the cleanliness of the inside of the filter water collection cylinder 21.

[0030] Reference Figure 1-2 and Figure 5-6 As shown, the soil water sampling tool provided by the utility model is described, and the sampling tube 31 is clamped in the insertion end 22 so as to quickly disassemble and assemble the sampling tube 31:

[0031] The sampling tube 31 of the present application is slidably and detachably installed in the insertion end 22. A limiting plate 32 is integrally formed on the bottom periphery of the sampling tube 31. The upper surface of the limiting plate 32 abuts against the bottom of the insertion end 22. A conical surface 33 is integrally formed on the bottom of the sampling tube 31 to facilitate the insertion of the soil water sampling tool into the ground.

[0032] By adjusting the clearance between the inner wall of the insertion end 22 and the outer surface of the sampling tube 31 , the sampling tube 31 can be stuck in the insertion end 22 , so that the sampling tube 31 can be quickly disassembled and assembled.

[0033] Furthermore, a damping plate 34 may be provided on the side of the sampling tube 31 , and the damping plate 34 is slidably connected to the vertical groove in the insertion end 22 . The damping plate 34 may be made of rubber material, and the elastic deformation of the damping plate 34 itself may be utilized to allow the sampling tube 31 to be stuck in the insertion end 22 .

[0034] Reference Figure 1-2 As shown, an embodiment of the soil water sampling tool provided by the utility model is described, which uses the dustproof sleeve 11 to shield the outside of the filter water collection cylinder 21 to keep the filter water collection cylinder 21 clean:

[0035] The handle 25 of the present application is detachably fixed with a pressure rod 13 by fasteners, and the pressure rod 13 is slidably installed in the dustproof sleeve 11. When the filter water collecting cylinder 21 is not inserted into the ground, the dustproof sleeve 11 is used to cover the outside of the filter water collecting cylinder 21 to keep the filter water collecting cylinder 21 clean.

[0036] Furthermore, a placement edge 12 is integrally formed on the bottom circumference of the dustproof sleeve 11, and the pressure rod 13 is pressed down to insert the filter water collection cylinder 21 and the sampling tube 31 into the ground soil. At this time, the placement edge 12 can improve the placement stability of the equipment on the ground.

[0037] Reference Figure 2-4 As shown, an embodiment of the soil water sampling tool provided by the utility model is described to improve the use effect of the equipment:

[0038] An annular rubber sleeve 26 is fixedly installed on the top circumference of the sealing cover 23 of the present application, and the annular rubber sleeve 26 is used to shield the side of the upper end of the filter water collecting cylinder 21 to prevent rainwater from directly pouring into the filter water collecting cylinder 21 and affecting the detection results.

[0039] The edge of the annular rubber sleeve 26 can be turned up so as to be installed in the dustproof sleeve 11 .

[0040] Furthermore, a handle 25 is fixedly mounted on the sealing cover 23 so that the soil water sampling tool can be taken out of the ground as a whole for recycling.

Claims

1. A soil water sampling tool, comprising a filter water collection cylinder (21) that can be inserted into the ground soil, characterized in that: The upper and lower ends of the filter water collecting cylinder (21) are respectively provided with a sealing cover (23) and an insertion end (22); a plurality of water permeable holes are provided on the side of the filter water collecting cylinder (21); and a sampling tube (31) is installed in the insertion end (22).

2. The soil water sampling tool according to claim 1, characterized in that: The connection between the filtering water collecting cylinder (21) and the insertion end (22) is provided with an inclined surface extending and converging in the direction of the insertion end (22).

3. The soil water sampling tool according to claim 1, characterized in that: A secondary filter screen (24) is fixedly installed in the filtering water collecting cylinder (21).

4. The soil water sampling tool according to claim 1, characterized in that: The sampling tube (31) is slidably and detachably installed in the insertion end (22); a limiting plate (32) is integrally formed around the bottom of the sampling tube (31); and the upper surface of the limiting plate (32) abuts against the bottom of the insertion end (22).

5. The soil water sampling tool according to claim 1, characterized in that: A handle (25) is fixedly mounted on the sealing cover (23).

6. The soil water sampling tool according to claim 1, characterized in that: An annular rubber sleeve (26) is fixedly mounted on the top circumference of the sealing cover (23).

7. The soil water sampling tool according to claim 4 or 1, characterized in that: The bottom of the sampling tube (31) is integrally formed with a conical surface (33).

8. The soil water sampling tool according to claim 7, characterized in that: A damping plate (34) is provided on the side of the sampling tube (31), and the damping plate (34) is slidably connected to the vertical groove in the insertion end (22).

9. The soil water sampling tool according to claim 5, characterized in that: A pressure rod (13) is detachably fixedly installed in the handle (25), and the pressure rod (13) is slidably installed in the dustproof sleeve (11).

10. The soil water sampling tool according to claim 9, characterized in that: A placement edge (12) is integrally formed on the circumferential side of the bottom of the dustproof sleeve (11).

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