A portable soil sampler

Abstract

This invention discloses a portable soil sampler, belonging to the field of soil sampling technology. It includes a sampling cylinder, a motor fixedly connected to the upper surface of the sampling cylinder via a first reciprocating screw, and a ring-shaped blade fixedly connected to the bottom surface of the sampling cylinder. A first nut is embedded in the upper surface of a dust cover surrounding the sampling cylinder. In this invention, when the motor operates, it drives the first reciprocating screw to rotate, causing the rack to move downwards and rotate the gear ring. A piston plate reciprocates inside the first and second piston cylinders, collecting dust while simultaneously disinfecting the airflow or microorganisms. The reciprocating movement of the piston plate inside the second piston cylinder sprays water from the water collection bottle into the dust cover, reducing dust generated during soil sampling. By collecting dust and simultaneously spraying water mist, the device effectively reduces dust from the sampled soil, resulting in better dust suppression.

Description

Technical Field

[0001] This invention belongs to the field of soil sampling technology, and particularly relates to a portable soil sampler. Background Technology

[0002] Soil sampling is a crucial step in ecological protection. Forest soil sampling aims to understand soil quality, fertility, and ecological functions, providing data support for scientific research and ecological protection of forest ecosystems. Through sampling analysis, key indicators such as soil organic matter content, pH, nutrient status, and microbial activity can be assessed, providing a basis for formulating reasonable soil management strategies and ecological protection measures.

[0003] Soil contains various impurities such as leaves. When carrying out soil sampling, the rotary cutting sampling method can make the sampling process smoother. However, this cutting method will generate more dust and cause adverse effects. Therefore, common soil sampling devices usually have dust suppression functions. However, existing soil sampling devices have certain limitations. The dust suppression methods of the devices are relatively simple and the dust suppression effect is not satisfactory. Summary of the Invention

[0004] The purpose of this invention is to provide a portable soil sampler to address the problem that existing soil sampling devices have a limited range of dust suppression methods and poor dust suppression effects.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A portable soil sampler includes a sampling cylinder, a motor mounted on the upper part of the sampling cylinder fixedly connected to the upper surface of the sampling cylinder via a first reciprocating screw, an annular blade fixedly connected to the bottom surface of the sampling cylinder, a first nut embedded in the upper surface of a dust cover mounted on the outside of the sampling cylinder, the first reciprocating screw being threadedly connected to the first nut and extending into the interior of the dust cover, a pair of racks mounted on the outside of the motor extending into the interior of the dust cover and meshing with a toothed ring mounted inside the dust cover, a first piston cylinder and a second piston cylinder fixedly connected to the left and right side walls of the dust cover respectively, piston plates being slidably connected to the inner walls of both the first and second piston cylinders, a second reciprocating screw rotatably connected to the outer surfaces of the two piston plates being threadedly connected to the second nut embedded in the outer surface of the dust cover, and cylinders fixedly connected to the inner walls of the two toothed rings being slidably connected to the outer surfaces of the second reciprocating screws. The first piston cylinder is connected to the inside of the dust cover through a first one-way valve, and the dust collection box fixedly connected to the upper surface of the first piston cylinder is connected to the inside of the first piston cylinder through a second one-way valve. A disinfection box is threadedly connected to the upper surface of the dust collection box. The second piston cylinder is connected to the inside of the dust cover through a first check valve, and the water collection bottle fixedly connected to the upper surface of the second piston cylinder is connected to the inside of the second piston cylinder through a second check valve.

[0006] As a further description of the above technical solution: The inner wall of the cylinder is provided with a first sliding groove. A first slider that is slidably connected to the inner wall of the first sliding groove is fixedly connected to the outer surface of the second reciprocating lead screw. A limiting ring that is rotatably connected to the outer surface of the cylinder is fixedly connected to a fixing rod. The end of the fixing rod away from the limiting ring is fixedly connected to a dust cover.

[0007] As a further description of the above technical solution: The outer surface of the rack is provided with a second sliding groove, and the second slider, which is slidably connected to the inner wall of the second sliding groove, is fixedly connected to the upper surface of the dust cover. The crossbar, which is fixedly connected to the outer surface of the motor, is fixedly connected to the rack.

[0008] As a further description of the above technical solution: The outer surface of the dust collection box is fitted with a first rubber plug. The air inlet of the first one-way valve is connected to the mesh tube embedded in the inner wall of the dust cover, and the air outlet of the first one-way valve is connected to the inside of the first piston cylinder. The air inlet of the second one-way valve is connected to the inside of the first piston cylinder, and the air outlet of the second one-way valve is connected to the inside of the dust collection box.

[0009] As a further description of the above technical solution: The inner bottom wall of the disinfection box is inlaid with a first waterproof and breathable membrane, the inner top wall of the dust collection box is inlaid with a dust collection cloth, and the inner wall of the second rubber stopper snapped onto the upper surface of the disinfection box is fixedly connected with a second waterproof and breathable membrane, the second rubber stopper extending into the interior of the disinfection box.

[0010] As a further description of the above technical solution: The inlet end of the first check valve is connected to the interior of the second piston cylinder, and the outlet end of the first check valve is connected to the annular shower head fixedly connected to the inner wall of the dust cover. The inlet end of the second check valve is connected to the interior of the water collection bottle, and the outlet end of the second check valve is connected to the interior of the second piston cylinder.

[0011] As a further description of the above technical solution: The water collecting bottle has a cover hinged to its upper surface, and an observation window is provided on the front of the water collecting bottle.

[0012] As a further description of the above technical solution: A pair of foot pedals are fixedly connected to the lower part of the outer surface of the dust cover, and toothed pins are fixedly connected to the bottom surface of the two foot pedals.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: In this invention, when the motor is working, it drives the first reciprocating screw to rotate, the rack moves down and drives the gear ring to rotate, the annular blade cuts the soil surface, the sampling cylinder samples the soil, the piston plate moves back and forth inside the first piston cylinder and the second piston cylinder, the air inside the dust cover flows into the dust collection box, and with the dust collection cloth, the dust is filtered and collected into the dust collection box. The air flows through the disinfectant water inside the disinfection box through the first waterproof and breathable membrane and flows out through the second waterproof and breathable membrane. While collecting dust, it also disinfects the air or microorganisms passing through. At the same time, the reciprocating movement of the piston plate inside the second piston cylinder causes the water inside the water collection bottle to be sprayed into the dust cover, which helps to reduce the dust generated during the soil sampling process inside the dust cover. The device collects dust and sprays water mist simultaneously, which reduces the dust generated by the sampled soil and has a better dust reduction effect. Attached Figure Description

[0014] Figure 1 This is a frontal cross-sectional view of a portable soil sampler proposed in this invention. Figure 2 This is a front view cross-sectional structural diagram of a dust cover for a portable soil sampler proposed in this invention; Figure 3 This is a front view schematic diagram of a portable soil sampler proposed in this invention; Figure 4 This is a top view schematic diagram of the cylindrical structure of a portable soil sampler proposed in this invention; Figure 5 This is a front view cross-sectional view of a portable soil sampler cylinder proposed in this invention; Figure 6 This is a front view cross-sectional diagram of the dust collection box of a portable soil sampler proposed in this invention.

[0015] Legend: 1. Sampling cylinder; 2. Motor; 3. First reciprocating screw; 4. Dust cover; 5. First nut; 6. Rack; 7. Gear ring; 8. First piston cylinder; 9. Second piston cylinder; 10. Piston plate; 11. Second reciprocating screw; 12. Second nut; 13. Cylinder; 14. First one-way valve; 15. Dust collection box; 16. Second one-way valve; 17. Disinfection box; 18. First check valve; 19. Water collection bottle; 20. Second check valve. 21. Return valve; 22. First slide groove; 23. First slider; 24. Limiting ring; 25. Fixing rod; 26. Second slide groove; 27. Second slider; 28. Crossbar; 29. ​​First rubber plug; 30. First waterproof and breathable membrane; 31. Dust collection cloth; 32. Second rubber plug; 33. Second waterproof and breathable membrane; 34. Annular shower head; 35. Cover plate; 36. Mesh tube; 37. Observation window; 38. Foot pedal; 39. Tooth needle; 30. Annular knife. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Please see Figure 1-6This invention provides a technical solution: a portable soil sampler, comprising a sampling cylinder 1, a motor 2 mounted on the upper part of the sampling cylinder 1 fixedly connected to the upper surface of the sampling cylinder 1 via a first reciprocating screw 3, and an annular blade 39 fixedly connected to the bottom surface of the sampling cylinder 1. The annular blade 39 facilitates cutting the soil when the sampling cylinder 1 rotates, making soil sampling more efficient. A crossbar 27 fixedly connected to the outer surface of the motor 2 is fixedly connected to a rack 6, and the point where the motor 2 passes through the crossbar 27 does not contact to prevent friction. A dust cover 4 mounted on the outside of the sampling cylinder 1 has a first nut 5 embedded in its upper surface. The dust cover 4 allows the sampling to be completed in a relatively enclosed environment, further reducing dust dispersion during sampling. A ring blade 39 is fixedly connected to the lower part of the outer surface of the dust cover 4. A pair of foot pedals 37 are provided, with toothed pins 38 fixedly connected to the bottom surfaces of the two foot pedals 37. The toothed pins 38 increase the friction of the bottom surfaces of the foot pedals 37. The device is limited and fixed by stepping on the toothed pins 38. The first reciprocating screw 3 is threadedly connected to the first nut 5 and extends into the interior of the dust cover 4. A pair of racks 6 provided on the outside of the motor 2 extend into the interior of the dust cover 4 and mesh with the toothed rings 7 provided inside the dust cover 4. The racks 6 are slidably connected to the through-hole of the dust cover 4 to prevent friction between the racks 6 and the through-hole of the dust cover 4. A second sliding groove 25 is provided on the outer surface of the racks 6. A second slider 26 slidably connected to the inner wall of the second sliding groove 25 is fixedly connected to the upper surface of the dust cover 4. The cooperation of the second sliding groove 25 and the second slider 26 limits the displacement of the racks 6.

[0018] The left and right side walls of the dust cover 4 are respectively fixedly connected to a first piston cylinder 8 and a second piston cylinder 9. Piston plates 10 are slidably connected to the inner walls of both the first piston cylinder 8 and the second piston cylinder 9. The second reciprocating screws 11, rotatably connected to the outer surfaces of the two piston plates 10, are threadedly connected to the second nuts 12 embedded in the outer surface of the dust cover 4. The cylinders 13, fixedly connected to the inner walls of the two toothed rings 7, are slidably connected to the outer surfaces of the second reciprocating screws 11. A first sliding groove 21 is provided on the inner wall of the cylinder 13, and the inner wall of the first sliding groove 21 is slidably connected to… The first slider 22 is fixedly connected to the outer surface of the second reciprocating screw 11. The limiting ring 23 rotatably connected to the outer surface of the cylinder 13 is fixedly connected to the fixing rod 24. The end of the fixing rod 24 away from the limiting ring 23 is fixedly connected to the inner wall of the dust cover 4. The cooperation between the first slide groove 21 and the first slider 22 limits the second reciprocating screw 11 while allowing the second reciprocating screw 11 to rotate with the cylinder 13. The cooperation between the limiting ring 23 and the fixing rod 24 limits the cylinder 13.

[0019] The first piston cylinder 8 is connected to the interior of the dust cover 4 via the first one-way valve 14, and the dust collection box 15, which is fixedly connected to the upper surface of the first piston cylinder 8, is connected to the interior of the first piston cylinder 8 via the second one-way valve 16. The air inlet of the first one-way valve 14 is connected to the mesh cylinder 35 embedded in the inner wall of the dust cover 4, and the air outlet of the first one-way valve 14 is connected to the interior of the first piston cylinder 8. The air inlet of the second one-way valve 16 is connected to the interior of the first piston cylinder 8, and the air outlet of the second one-way valve 16 is connected to the interior of the dust collection box 15. The mesh cylinder 35 is located above the annular shower head 33. The cooperation of the first one-way valve 14 and the second one-way valve 16 limits the flow direction of the air inside the first piston cylinder 8, so that when the piston plate 10 moves back and forth inside the first piston cylinder 8, the dust inside the dust cover 4 flows to the interior of the dust collection box 15 through the mesh cylinder 35, the first one-way valve 14, the first piston cylinder 8, and the second one-way valve 16.

[0020] A first rubber stopper 28 is snapped onto the outer surface of the dust collection box 15. The dust inside the dust collection box 15 can be cleaned by detaching the first rubber stopper 28 from the outer surface of the dust collection box 15. A disinfection box 17 is threaded onto the upper surface of the dust collection box 15. A first waterproof and breathable membrane 29 is embedded in the inner bottom wall of the disinfection box 17, and a dust collection cloth 30 is embedded in the inner top wall of the dust collection box 15. The dust collection cloth 30 collects dust. The first and second waterproof and breathable membranes 29 and 32 allow the disinfection box 17 to breathe while preventing the disinfectant solution from leaking out. A second waterproof and breathable membrane 32 is fixedly connected to the inner wall of the second rubber stopper 31 snapped onto the upper surface of the disinfection box 17. The second rubber stopper 31 extends into the interior of the disinfection box 17, allowing the disinfectant solution inside the disinfection box 17 to be replaced by detaching the second rubber stopper 31 from the disinfection box 17. The second piston cylinder 9 is connected to the interior of the dust cover 4 via a first check valve 18. The water collection bottle 19, which is fixedly connected to the upper surface of the second piston cylinder 9, is connected to the interior of the second piston cylinder 9 through the second check valve 20. The upper surface of the water collection bottle 19 is hinged with a cover plate 34, and the front of the water collection bottle 19 is provided with an observation window 36. The observation window 36 is provided to facilitate observation of the remaining amount inside the water collection bottle 19. The inlet end of the first check valve 18 is connected to the interior of the second piston cylinder 9, and the outlet end of the first check valve 18 is connected to the annular shower head 33, which is fixedly connected to the inner wall of the dust cover 4. The inlet end of the second check valve 20 is connected to the interior of the water collection bottle 19, and the outlet end of the second check valve 20 is connected to the interior of the second piston cylinder 9. The reciprocating movement of the piston plate 10 inside the second piston cylinder 9 allows the water inside the water collection bottle 19 to be sprayed into the interior of the dust cover 4 through the second check valve 20, the second piston cylinder 9, the first check valve 18, and the annular shower head 33, thereby reducing dust generated during the soil sampling process inside the dust cover 4.

[0021] Add appropriate amounts of disinfectant and water to the disinfection box 17 and water collection bottle 19 respectively. The dust cover 4 contacts the ground to be sampled. The sampling personnel limit and fix the device by stepping on the foot pedal 37. When the motor 2 is working, it drives the first reciprocating screw 3 to rotate. With the setting of the first nut 5, the rack 6 moves down and drives the gear ring 7 to rotate. During the process, the ring blade 39 cuts the soil surface, the sampling cylinder 1 samples the soil, and the piston plate 10 moves back and forth inside the first piston cylinder 8 and the second piston cylinder 9. The air inside the dust cover 4 flows into the dust collection box 15 through the first one-way valve 14, the first piston cylinder 8 and the second one-way valve 16. With the setting of the dust collection cloth 30, the dust is filtered and collected into the dust collection box 15. The air flowing through the first waterproof and breathable membrane 29 flows into the disinfection box 17, and the disinfectant water flows out through the second waterproof and breathable membrane 32. While collecting dust, it also disinfects the exhaust air, reducing the impact of soil microorganisms flowing out with the air on the external environment. At the same time, the piston plate 10 moves back and forth inside the second piston cylinder 9, allowing the water inside the water collection bottle 19 to be sprayed into the dust cover 4 through the second check valve 20, the second piston cylinder 9, the first check valve 18, and the annular shower head 33. This helps to reduce the dust generated during the soil sampling process inside the dust cover 4. By collecting dust and spraying water mist simultaneously, the device reduces the dust generated by the sampled soil from flying around, resulting in a better dust reduction effect.

[0022] Working principle: In use, the motor 2 is connected to the mobile power supply, and the dust cover 4 is in contact with the ground to be sampled. The sampling personnel limit and fix the device by stepping on the surface of the foot pedal 37. When the motor 2 is working, it drives the first reciprocating screw 3 to rotate. With the setting of the first nut 5, the rack 6 moves down and drives the toothed ring 7 to rotate. During the process, the ring blade 39 cuts the soil surface, the sampling cylinder 1 samples the soil, and the piston plate 10 moves back and forth inside the first piston cylinder 8 and the second piston cylinder 9. The air inside the dust cover 4 flows into the dust collection box 15 through the first one-way valve 14, the first piston cylinder 8 and the second one-way valve 16. With the setting of the dust collection cloth 30, the air is drawn into the dust collection box 15. Dust is filtered and collected inside the dust collection box 15. Air flows through the first waterproof and breathable membrane 29, through the disinfectant water inside the disinfection box 17, and out through the second waterproof and breathable membrane 32. While collecting dust, the exhaust air is also disinfected. At the same time, the piston plate 10 moves back and forth inside the second piston cylinder 9, allowing water inside the water collection bottle 19 to be sprayed into the dust cover 4 through the second check valve 20, the second piston cylinder 9, the first check valve 18, and the annular shower head 33. This helps to reduce dust generated during soil sampling inside the dust cover 4. By collecting dust and spraying water mist, the device reduces the dust generated by the sampled soil, resulting in a better dust reduction effect.

[0023] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A portable soil sampler, comprising a sampling cylinder, a motor mounted on the upper part of the sampling cylinder being fixedly connected to the upper surface of the sampling cylinder via a first reciprocating lead screw, and an annular blade fixedly connected to the bottom surface of the sampling cylinder, characterized in that, The upper surface of the dust cover outside the sampling cylinder is inlaid with a first nut. The first reciprocating screw is threadedly connected to the first nut and extends into the interior of the dust cover. A pair of racks outside the motor extend into the interior of the dust cover and mesh with the toothed rings inside the dust cover. The left and right side walls of the dust cover are respectively fixedly connected to a first piston cylinder and a second piston cylinder. The inner walls of the first piston cylinder and the second piston cylinder are slidably connected to piston plates. The second reciprocating screws rotatably connected to the outer surfaces of the two piston plates are threadedly connected to the second nuts inlaid on the outer surface of the dust cover. The cylinders fixedly connected to the inner walls of the two toothed rings are slidably connected to the outer surfaces of the second reciprocating screws. The first piston cylinder is connected to the inside of the dust cover through a first one-way valve, and the dust collection box fixedly connected to the upper surface of the first piston cylinder is connected to the inside of the first piston cylinder through a second one-way valve. A disinfection box is threadedly connected to the upper surface of the dust collection box. The second piston cylinder is connected to the inside of the dust cover through a first check valve, and the water collection bottle fixedly connected to the upper surface of the second piston cylinder is connected to the inside of the second piston cylinder through a second check valve.

2. A portable soil sampler according to claim 1, characterized in that, The inner wall of the cylinder is provided with a first sliding groove. A first slider that is slidably connected to the inner wall of the first sliding groove is fixedly connected to the outer surface of the second reciprocating lead screw. A limiting ring that is rotatably connected to the outer surface of the cylinder is fixedly connected to a fixing rod. The end of the fixing rod away from the limiting ring is fixedly connected to a dust cover.

3. A portable soil sampler according to claim 1, characterized in that, The outer surface of the rack is provided with a second sliding groove, and the second slider, which is slidably connected to the inner wall of the second sliding groove, is fixedly connected to the upper surface of the dust cover. The crossbar, which is fixedly connected to the outer surface of the motor, is fixedly connected to the rack.

4. A portable soil sampler according to claim 1, characterized in that, The outer surface of the dust collection box is fitted with a first rubber plug. The air inlet of the first one-way valve is connected to the mesh tube embedded in the inner wall of the dust cover, and the air outlet of the first one-way valve is connected to the inside of the first piston cylinder. The air inlet of the second one-way valve is connected to the inside of the first piston cylinder, and the air outlet of the second one-way valve is connected to the inside of the dust collection box.

5. A portable soil sampler according to claim 1, characterized in that, The inner bottom wall of the disinfection box is inlaid with a first waterproof and breathable membrane, the inner top wall of the dust collection box is inlaid with a dust collection cloth, and the inner wall of the second rubber stopper snapped onto the upper surface of the disinfection box is fixedly connected with a second waterproof and breathable membrane, the second rubber stopper extending into the interior of the disinfection box.

6. A portable soil sampler according to claim 1, characterized in that, The inlet end of the first check valve is connected to the interior of the second piston cylinder, and the outlet end of the first check valve is connected to the annular shower head fixedly connected to the inner wall of the dust cover. The inlet end of the second check valve is connected to the interior of the water collection bottle, and the outlet end of the second check valve is connected to the interior of the second piston cylinder.

7. A portable soil sampler according to claim 1, characterized in that, The water collecting bottle has a cover hinged to its upper surface, and an observation window is provided on the front of the water collecting bottle.

8. A portable soil sampler according to claim 1, characterized in that, A pair of foot pedals are fixedly connected to the lower part of the outer surface of the dust cover, and toothed pins are fixedly connected to the bottom surface of the two foot pedals.

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