Portable soil sampling device for perfluorinated compound detection

Abstract

The utility model relates to the technical field of soil sampling, in particular to a portable soil sampling device for perfluorinated compound detection, and aims to solve the technical problems that a soil sampling device in the prior art is low in stability and difficult to accurately perform vertical sampling in the sampling process. And the top of the bearing ring is fixedly connected with a storage sleeve. The abutting plate is in contact with the ground needing to be sampled, the abutting plate can be twisted to be attached to the ground at the moment due to the fact that the rotating ball is clamped through the clamping plate, a user can twist the push rod to make the push rod perpendicular to the ground at the moment, the lower side pipe opening of the adjusting pipe pushes and extrudes the clamping plate, and therefore the clamping plate is tightly attached to the rotating ball; the push rod is supported by the abutting plate to be perpendicular to the ground, at the moment, a user can push the sampling pipe to move perpendicularly to the ground through the push rod to complete sampling, and therefore the stability during sampling is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of soil sampling, and more specifically, to a portable soil sampling device for the detection of perfluorinated compounds. Background Art

[0002] Perfluorinated compounds are a class of persistent pollutants that are difficult to degrade in the environment and can exist in soil for a long time. Detecting perfluorinated compounds in soil helps to understand their distribution and pollution levels, providing a scientific basis for land management and pollution remediation, and ensuring the effective implementation of environmental governance measures.

[0003] When sampling soil, due to the layered characteristics of soil, soils at different depths may have different physical, chemical properties and biological characteristics. Therefore, vertical sampling of soil is required, and vertical sampling can ensure that samples are taken from each layer of soil, thereby improving the representativeness of the samples and ensuring that various components detected can accurately reflect the true situation of each layer of soil.

[0004] In the prior art, soil sampling devices are divided into electric and manual types. Electric ones have high efficiency but low portability, while manual soil sampling devices have high portability. However, when in use, only relying on the user to step on the foot pedal to insert the sampling tube of the sampling device into the soil for sampling, which results in low stability during the sampling process and makes it difficult to accurately perform vertical sampling. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, meet the actual needs, and provide a portable soil sampling device for the detection of perfluorinated compounds, so as to solve the technical problem that the stability of the existing soil sampling device during the sampling process is low and it is difficult to accurately perform vertical sampling.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions: A portable soil sampling device for perfluorinated compound detection, including a bearing ring, a receiving sleeve is fixedly connected to the top of the bearing ring, a push rod is slidably connected to the inner wall of the receiving sleeve, a sampling tube is fixedly connected to the bottom of the push rod, the sampling tube is covered by the receiving sleeve, a plurality of adjusting tubes are fixedly connected to the bottom of the bearing ring, a telescopic rod is slidably connected to the inner wall of the adjusting tube, a first spring is fixedly connected to the top of the telescopic rod, the first spring is covered by the adjusting tube, and the other end of the first spring abuts against the inner end wall of the adjusting tube. A plurality of arc-shaped clamping plates are fixedly connected to the bottom of the telescopic rod, a rotating bead is clamped between the clamping plates, and a resisting plate is fixedly connected to the outer wall of the rotating bead; By contacting the ground to be sampled through the resisting plate, since the rotating bead is clamped by the clamping plates, the resisting plate can be twisted to fit the ground at this time. The user can twist the push rod at this time to make the push rod perpendicular to the ground. At this time, the user no longer pulls the push rod, so that the receiving sleeve, the adjusting tube and the bearing ring as a whole move downward, so that the lower pipe orifice of the adjusting tube squeezes the clamping plate, so that the clamping plate tightly fits the rotating bead, so that the rotating bead cannot rotate, so that the angle of the twisted resisting plate is fixed, and the resisting plate supports the push rod perpendicular to the ground. At this time, the user can push the sampling tube vertically downward to the ground through the push rod to complete the sampling. This process is supported by the resisting plate, thereby increasing the stability during sampling.

[0007] Preferably, the ends of the resisting plate away from the telescopic rod are all comb-shaped structures; The comb-shaped structure of the resisting plate enables its teeth to be inserted into the ground when it contacts the ground, thereby preventing the resisting plate from sliding on the ground, thereby increasing the stability of the resisting plate when supporting the push rod vertically.

[0008] Preferably, a receiving groove is opened at the end of the resisting plate away from the telescopic rod, a plurality of limiting rods are arranged in the receiving groove, one end of the limiting rod penetrates through the receiving groove to the top of the resisting plate and is slidably connected to the penetrated position, the other end of the limiting rod is fixedly connected to a protective ring, a second spring is fixedly connected to the top of the protective ring, the second spring sleeved the limiting rod, and the other end of the second spring abuts against the inner wall of the receiving groove; By arranging the protective ring to cover the comb-shaped part of the resisting plate, it can prevent the resisting plate from accidentally causing harm to the user. And when the resisting plate contacts the sampling ground, the protective ring contacts the ground first. The protective ring is squeezed and will push the second spring, so that the second spring contracts and drives the limiting rod to move, so that the protective ring enters the receiving groove, so that the protective ring will not affect the resisting plate from fitting the ground.

[0009] Preferably, a handle is fixedly connected to the top of the push rod; By arranging the handle, it is convenient for the user to straighten the push rod.

[0010] Preferably, symmetrically arranged footrest rods are fixedly connected to the outer wall of the lower side of the push rod; the footrest rods provided facilitate the user to drive the push rod to move by stepping on the footrest rods, so that the push rod drives the sampling tube to move towards the ground, increasing the convenience during sampling.

[0011] Preferably, a bubble level is fixedly connected to the top of the handle; the bubble level provided facilitates the user to determine the angle of torsion of the push rod through the bubble level, thereby increasing the accuracy of sampling by the sampler.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, by providing a bearing ring, a storage sleeve, a push rod, a sampling tube, an adjusting tube, a telescopic rod, a first spring, a clamping plate, a rotating bead, and a resisting plate, it is realized that the resisting plate contacts the ground where sampling is to be carried out. Since the rotating bead is clamped by the clamping plate, the resisting plate can be torsionally fitted to the ground at this time. The user can twist the push rod at this time to make the push rod perpendicular to the ground. At this time, the user no longer pulls up the push rod, so that the storage sleeve, the adjusting tube, and the bearing ring as a whole move downward, so that the lower pipe orifice of the adjusting tube squeezes the clamping plate, thereby making the clamping plate closely fit the rotating bead, making the rotating bead unable to rotate, so that the angle of the torsionally rotated resisting plate is fixed. The push rod is supported by the resisting plate to be perpendicular to the ground. At this time, the user can push the sampling tube vertically towards the ground through the push rod to complete sampling. This process is supported by the resisting plate, thereby increasing the stability during sampling.

[0014] 2. The comb-shaped structure of the resisting plate in the present utility model enables its teeth to insert into the ground when contacting the ground, thereby preventing the resisting plate from sliding on the ground, thereby increasing the stability when the resisting plate supports the push rod to be perpendicular. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present utility model;

[0016] Figure 2 is a cross-sectional view of the storage sleeve in the present utility model;

[0017] Figure 3 is a cross-sectional view of the adjusting tube in the present utility model;

[0018] Figure 4 is Figure 3 a partial enlarged view of part A in

[0019] Explanation of the reference numerals in the figures:

[0020] 1. Bearing ring; 2. Storage sleeve; 3. Push rod; 4. Sampling tube; 5. Adjusting tube; 6. Telescopic rod; 7. First spring; 8. Clamping plate; 9. Rotating bead; 10. Contact plate; 11. Storage groove; 12. Limiting rod; 13. Protective ring; 14. Second spring; 15. Handle; 16. Foot pedal rod; 17. Bubble level. Detailed implementation manner

[0021] As Figures 1 to 4 shown, the present utility model relates to: a portable soil sampling device for perfluorinated compound detection, including a bearing ring 1, a storage sleeve 2 is fixedly connected to the top of the bearing ring 1, a push rod 3 is slidably connected to the inner wall of the storage sleeve 2, a sampling tube 4 is fixedly connected to the bottom of the push rod 3, the sampling tube 4 is covered by the storage sleeve 2, a plurality of adjusting tubes 5 are fixedly connected to the bottom of the bearing ring 1, a telescopic rod 6 is slidably connected to the inner wall of the adjusting tube 5, a first spring 7 is fixedly connected to the top of the telescopic rod 6, the first spring 7 is covered by the adjusting tube 5, and the other end of the first spring 7 abuts against the inner end wall of the adjusting tube 5. A plurality of arc-shaped clamping plates 8 are fixedly connected to the bottom of the telescopic rod 6, a rotating bead 9 is clamped between the clamping plates 8, and a contact plate 10 is fixedly connected to the outer wall of the rotating bead 9; by contacting the ground to be sampled through the contact plate 10, since the rotating bead 9 is clamped by the clamping plates 8, the contact plate 10 can be twisted to fit the ground at this time. The user can twist the push rod 3 at this time to make the push rod 3 perpendicular to the ground. At this time, the user no longer pulls the push rod 3, so that the storage sleeve 2, the adjusting tube 5 and the bearing ring 1 move downward as a whole, so that the lower side nozzle of the adjusting tube 5 squeezes the clamping plate 8, so that the clamping plate 8 closely fits the rotating bead 9, so that the rotating bead 9 cannot rotate, so that the angle of the twisted contact plate 10 is fixed, and the push rod 3 is supported by the contact plate 10 perpendicular to the ground. At this time, the user can push the sampling tube 4 vertically downward to the ground through the push rod 3 to complete the sampling. This process is supported by the contact plate 10, thereby increasing the stability during sampling.

[0022] Furthermore, the ends of the contact plate 10 away from the telescopic rod 6 are all comb-shaped structures; the comb-shaped structures of the contact plate 10 enable its teeth to be inserted into the ground when it contacts the ground, thereby preventing the contact plate 10 from sliding on the ground, thereby increasing the stability of the contact plate 10 when supporting the push rod 3 vertically.

[0023] Further, a receiving groove 11 is formed at one end of the bottom plate 10 away from the telescopic rod 6. A plurality of limiting rods 12 are arranged in the receiving groove 11. One end of the limiting rod 12 penetrates through the receiving groove 11 to the top of the bottom plate 10 and is slidably connected to the penetrated position thereof. The other end of the limiting rod 12 is fixedly connected with a protective ring 13. The top of the protective ring 13 is fixedly connected with a second spring 14. The second spring 14 sleeves the limiting rod 12, and the other end of the second spring 14 abuts against the inner wall of the receiving groove 11. By arranging the protective ring 13 to cover the comb-like part of the bottom plate 10, it can prevent the bottom plate 10 from accidentally causing harm to the user. And when the bottom plate 10 contacts the sampling ground, the protective ring 13 contacts the ground first. The protective ring 13 is squeezed and will push the second spring 14, so that the second spring 14 contracts and drives the limiting rod 12 to move, so that the protective ring 13 enters the receiving groove 11, so that the protective ring 13 will not affect the bottom plate 10 from fitting the ground.

[0024] Further, a handle 15 is fixedly connected to the top of the push rod 3. By arranging the handle 15, it is convenient for the user to straighten the push rod 3.

[0025] Further, symmetrically arranged foot pedals 16 are fixedly connected to the outer wall of the lower side of the push rod 3. By arranging the foot pedals 16, it is convenient for the user to drive the push rod 3 to move by stepping on the foot pedals 16, so that the push rod 3 drives the sampling tube 4 to move towards the ground, increasing the convenience during sampling.

[0026] Further, a bubble level 17 is fixedly connected to the top of the handle 15. By arranging the bubble level 17, it is convenient for the user to determine the torsion angle of the push rod 3 through the bubble level 17, thereby increasing the accuracy of sampling by the sampler.

[0027] Working principle: This embodiment provides a portable soil sampling device for the detection of perfluorinated compounds. During use, the user lifts the whole through the handle 15 and places the bottom plate 10 on the sampling ground. Since the rotating beads 9 are clamped by the clamping plates 8, the bottom plate 10 can be twisted to fit the ground at this time. The user can twist the push rod 3 at this time to make the push rod 3 perpendicular to the ground. At this time, the user slowly lowers the handle 15, so that the receiving sleeve 2, the bearing ring 1 and the adjusting tube 5 start to move downward under their own gravity, so that the inner wall of the lower side of the adjusting tube 5 pushes against the outer wall of the clamping plate 8, so that the clamping rods approach each other and closely fit the rotating beads 9, so that the rotating beads 9 cannot rotate, thereby fixing the bottom plate 10 by the rotating beads 9, so that the bottom plate 10 cannot be twisted, so that the push rod 3 is perpendicular to the sampling ground. At this time, the user can step on the foot pedal 16 to make the push rod 3 drive the sampling tube 4 to move and insert into the sampling ground to complete the sampling.

[0028] The embodiments disclosed in the present utility model are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present utility model based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present utility model, they are within the protection scope of the present utility model.

Claims

1. A portable soil sampling device for perfluorinated compound detection, characterized in that: The invention comprises a carrying ring (1), the top of the carrying ring (1) is fixedly connected with a storage sleeve (2), the inner wall of the storage sleeve (2) is slidably connected with a push rod (3), the bottom of the push rod (3) is fixedly connected with a sampling tube (4), the sampling tube (4) is covered by the storage sleeve (2), the bottom of the carrying ring (1) is fixedly connected with a plurality of adjusting tubes (5), the inner wall of the adjusting tube (5) is slidably connected with a telescopic rod (6), the top of the telescopic rod (6) is fixedly connected with a first spring (7), the first spring (7) is covered by the adjusting tube (5), and the other end of the first spring (7) abuts against the inner end wall of the adjusting tube (5), the bottom of the telescopic rod (6) is fixedly connected with a plurality of arc-shaped clamping plates (8), rotating beads (9) are clamped between the clamping plates (8), and the outer wall of the rotating beads (9) is fixedly connected with abutment plates (10).

2. A portable soil sampling device for perfluorinated compound detection according to claim 1, characterized in that: The end of the abutment plate (10) away from the telescopic rod (6) is a comb-tooth structure.

3. A portable soil sampling device for perfluorinated compound detection according to claim 1, characterized in that: A receiving groove (11) is formed at one end of the support plate (10) away from the telescopic rod (6), and a plurality of limiting rods (12) are arranged in the receiving groove (11). One end of the limiting rod (12) passes through the receiving groove (11) to the top of the support plate (10) and is slidably connected to the penetration point. The other end of the limiting rod (12) is fixedly connected to a protective ring (13), and the top of the protective ring (13) is fixedly connected to a second spring (14), the second spring (14) sleeves the limiting rod (12) therein, and the other end of the second spring (14) contacts the inner wall of the receiving groove (11).

4. A portable soil sampling device for perfluorinated compound detection according to claim 1, characterized in that: A handle (15) is fixedly connected to the top of the push rod (3).

5. A portable soil sampling device for perfluorinated compound detection according to claim 1, characterized in that: A symmetrically arranged pedal rod (16) is fixedly connected to the lower outer wall of the push rod (3).

6. A portable soil sampling device for perfluorinated compound detection according to claim 4, characterized in that: A bubble level (17) is fixedly connected to the top of the handle (15).

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