A portable sampler for detecting environmental soil pollution

Abstract

The utility model relates to soil detection equipment technical field especially, relates to a portable sampler of environmental soil pollution detection, solved the existing technology in manual rotation sampling mode laborsaving, low efficiency, the labor intensity is big when facing hard soil or deep sampling, leads to sampling cylinder deflection, jam, influences sampling precision and sample integrity problem. A portable sampler of environmental soil pollution detection, including the lifting frame and two respectively connect in the footboard of lifting frame both sides bottom, the inner top of lifting frame is provided with the lifting plate, and the bottom of lifting plate is provided with a plurality of sampling cylinders, and every two adjacent sampling cylinders are detachably connected through the positioning structure. The utility model drives sampling cylinder vertical pressure into the soil through the lifting assembly, and the stable support of cooperation sliding structure guide and footboard, realize the sampling operation of laborsaving, high efficiency, stable, avoid deflection and jam, improve sampling depth control precision and sample integrity.

Description

Technical Field

[0001] This utility model relates to the field of soil testing equipment technology, and in particular to a portable sampler for detecting environmental soil pollution. Background Technology

[0002] Environmental soil pollution detection is a crucial step in assessing and remediating contaminated sites. Scientific sampling and analysis of the types, concentrations, and distribution of pollutants in the soil provide accurate data support for environmental risk assessment, pollution source tracing, and remediation plan development. With accelerated industrialization and adjustments in urban land use structures, soil pollution problems are becoming increasingly prominent, especially in areas such as former chemical plant sites, mining areas, and landfills, where pollutants such as heavy metals, organic matter, and petroleum hydrocarbons are widely present, necessitating large-scale, multi-site, and high-frequency on-site sampling and monitoring. Against this backdrop, portable samplers, due to their portability, operational flexibility, and ability to achieve rapid on-site sampling, have become indispensable tools in field environmental surveys and emergency monitoring.

[0003] Taking a portable soil sampling device disclosed in utility model patent CN 209214963 U as an example, although the device has advantages such as being able to obtain samples at different depths and avoiding sample contamination and volatilization, its reliance on manually rotating the push rod to drive the rotary rod and spiral blades to penetrate the soil has significant drawbacks in actual use: manual operation is time-consuming and labor-intensive, especially when facing hard soil layers, compacted soil, or deep sampling, the operator needs to expend a lot of physical strength to continuously apply torque, resulting in high labor intensity and extremely low sampling efficiency. Due to the instability of human output, it is easy to cause uneven pushing speed, skewed sampling tube, or even jamming, affecting the accurate control of sampling depth and the integrity of the sample.

[0004] Therefore, given the shortcomings of existing technologies, we urgently need a portable sampler for environmental soil pollution detection to solve this problem. This new device should significantly improve the efficiency and quality of soil sampling, reduce operational intensity, and better meet the needs of modern environmental monitoring for efficient, accurate, and convenient sampling, providing strong support for the in-depth development of environmental soil pollution detection. Utility Model Content

[0005] The purpose of this invention is to provide a portable sampler for detecting environmental soil pollution. It solves the problems of time-consuming and labor-intensive manual operation in the prior art, especially when facing hard soil layers, compacted soil or deep sampling. Operators need to expend a lot of physical strength to continuously apply torque, resulting in high labor intensity and extremely low sampling efficiency. Due to the instability of human output, it is easy to cause uneven propulsion speed, sampling tube deviation or even jamming, which affects the accurate control of sampling depth and the integrity of the sample.

[0006] To achieve the above objectives, this utility model provides a portable sampler for detecting environmental soil pollution, including a lifting frame and two foot pedals respectively connected to the bottom of both sides of the lifting frame. The lifting frame has a lifting plate at its inner top and several sampling cylinders at its bottom. Each pair of adjacent sampling cylinders is detachably connected to the same positioning structure. The top sampling cylinder is detachably connected to the bottom of the lifting plate, and a bottom toothed cylinder is fixedly connected to the bottom edge of the bottom sampling cylinder. Both sides of the lifting plate are slidably engaged with the inner wall of the lifting frame through a sliding structure, and the top of the lifting frame is equipped with a lifting component that cooperates with the lifting plate.

[0007] The foot pedal has several conical spikes fixedly connected to both sides of its bottom, and one end of the foot pedal is fixedly connected to the side wall of the lifting plate.

[0008] The lifting frame has sliding grooves on both sides, and the sliding structure includes a sliding plate. One end of the sliding plate is fixedly connected to the side wall of the lifting plate, and the sliding plate slides in conjunction with the sliding groove.

[0009] The lifting frame has handles fixedly connected to the top of both sides, and the handles are made of metal.

[0010] The positioning structure includes an externally threaded tube fixedly connected to the edge of the top end of the sampling tube. The bottom of the sampling tube is provided with an internal thread, and the bottom of the lifting plate is fixedly connected with an internally threaded tube that is compatible with the externally threaded tube.

[0011] The sliding groove is internally connected to a guide rod, and the sliding plate slides in cooperation with the guide rod. The lifting assembly includes a lifting cylinder installed at the top of the lifting frame, and the output end of the lifting cylinder is connected to the top of the lifting plate.

[0012] This utility model discloses a portable sampler for environmental soil pollution detection. By incorporating footboards at the bottom of both sides of the lifting frame, it provides stable support for the operator. During sampling, the operator's own weight enhances stability, effectively preventing swaying or tilting caused by unilateral force or soft ground, thus improving sampling verticality and operational safety. The sliding structure between the lifting frame and the lifting plate ensures precise guidance and smooth operation during vertical movement, preventing deviation or jamming of the sampling tube during insertion, guaranteeing sample integrity and accurate sampling depth. The lifting assembly replaces the traditional manual rotation method, using linear pushing to insert the sampling tube, significantly reducing operator fatigue, especially when sampling hard soil layers or deep soil. It eliminates the need for continuous torque application, greatly reducing labor intensity and improving efficiency. The sampling efficiency is improved; multiple sampling tubes can be combined in a detachable connection, and the sampling length can be flexibly adjusted according to actual geological conditions and testing needs to adapt to sampling tasks at different depths; the bottom toothed tube design effectively reduces penetration resistance and improves soil breaking ability, which helps the sampling tube to smoothly enter dense or compacted soil layers; the overall structure adopts a vertical pressing and pulling method, avoiding soil disturbance and stratification disorder that may be caused by spiral drilling, which is more conducive to obtaining stratified samples that truly reflect the in-situ pollution status; the sampler combines mechanical lifting with structural stability design, which solves the problems of time-consuming, labor-intensive, inefficient and prone to deviation of traditional manual rotating devices, significantly improving the ease of operation, sampling efficiency and data reliability of portable soil sampling, and meeting the actual needs of efficient, accurate and low-intensity field operations in environmental monitoring. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0015] Figure 2 This is a structural schematic diagram of the lifting frame and lifting cylinder according to an embodiment of the present utility model.

[0016] Figure 3 This is a structural schematic diagram of the externally threaded pipe and the internally threaded cylinder according to an embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram of the sliding groove and guide rod according to an embodiment of the present invention.

[0018] Figure 5 This is a schematic diagram of the grip and spike structure of an embodiment of the present invention.

[0019] In the diagram: 1. Foot pedal; 2. Lifting frame; 3. Lifting plate; 4. Sampling cylinder; 5. Lifting cylinder; 6. Internal thread; 7. External threaded pipe; 8. Sliding plate; 9. Internal threaded cylinder; 10. Bottom toothed cylinder; 11. Sliding groove; 12. Guide rod; 13. Handle; 14. Cone. Detailed Implementation

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention. Example 1

[0021] Please see Figure 1-5 As shown, a portable sampler for detecting environmental soil pollution in this embodiment includes a lifting frame 2 and two foot pedals 1 respectively connected to the bottom of both sides of the lifting frame 2. The top of the lifting frame 2 is provided with a lifting plate 3, and the bottom of the lifting plate 3 is provided with several sampling cylinders 4. Each pair of adjacent sampling cylinders 4 are detachably connected with the same positioning structure. The top sampling cylinder 4 is detachably connected to the bottom of the lifting plate 3, and the bottom sampling cylinder 4 is fixedly connected to the bottom edge of the bottom toothed cylinder 10. Both sides of the lifting plate 3 are slidably engaged with the inner wall of the lifting frame 2 through a sliding structure, and the top of the lifting frame 2 is equipped with a lifting component that cooperates with the lifting plate 3.

[0022] Workflow: When using this portable sampler for environmental soil pollution detection, first carry the device to the area of ​​soil to be tested. The operator places both feet on the foot pedals 1 on both sides to stabilize the entire sampler. The foot pedals 1 provide stable support by connecting to the bottom of the lifting frame 2 on both sides, preventing the device from tilting or shifting during sampling. Then, activate the lifting assembly installed at the top of the lifting frame 2. This assembly typically consists of a manual hydraulic pump, an electric push rod, or a lever mechanism, driving the lifting plate 3 to move vertically downwards along the inner wall of the lifting frame 2. The sides of the lifting plate 3 slide against the inner wall of the lifting frame 2 through a sliding structure, ensuring that it remains stable and does not tilt during descent. As the lifting plate 3 moves downwards, the multiple... Each sampling cylinder 4 is simultaneously pressed into the soil. The sampling cylinders 4 are detachably connected to each other through a positioning structure. The top sampling cylinder 4 is also detachably connected to the bottom of the lifting plate 3, which allows for flexible adjustment of the number of cylinders according to the sampling depth. The bottom edge of the bottom sampling cylinder 4 is fixedly connected to a bottom toothed cylinder 10. This toothed cylinder cuts into the soil first during the pressing process, playing a role in breaking the soil and guiding, reducing initial resistance and preventing the sampling cylinder from deviating. When the sampling cylinder 4 reaches the predetermined depth, the lifting component moves in the opposite direction, driving the lifting plate 3 and the sampling cylinder 4 as a whole to be vertically pulled out of the soil, completing one sampling. Subsequently, each section of the sampling cylinder 4 can be disassembled in sequence to obtain layered soil samples at different depths, achieving undisturbed collection of undisturbed soil samples. Example 2

[0023] Please see Figure 1-5 As shown in this embodiment, a portable sampler for detecting environmental soil pollution has several cones 14 fixedly connected to both sides of the bottom of the foot plate 1. One end of the foot plate 1 is fixedly connected to the side wall of the lifting plate 3. Specifically, by setting the cones 14 on both sides of the bottom of the foot plate 1 to contact the ground, when the operator steps on the foot plate 1, the cones 14 can penetrate into the soil surface, enhancing the friction and fixing effect between the foot plate 1 and the ground. At the same time, one end of the foot plate 1 is fixedly connected to the side wall of the lifting frame 2, forming a stable support structure, which achieves the effect of preventing the sampler from slipping or overturning during the penetration process and improving the overall stability of the equipment.

[0024] Handles 13 are fixedly connected to the top of both sides of the lifting frame 2. The handles 13 are made of metal. Specifically, through the handles 13 set on the top of both sides of the lifting frame 2, the operator can hold the metal handles 13 to control the posture of the equipment, which is convenient for handling, positioning and force application. The metal material provides sufficient structural strength and durability, which achieves the effect of improving the convenience of operation and the controllability of the equipment. Example 3

[0025] Please see Figure 1-5 As shown in this embodiment, a portable sampler for detecting environmental soil pollution has sliding grooves 11 on both sides of the lifting frame 2. The sliding structure includes a sliding plate 8, one end of which is fixedly connected to the side wall of the lifting plate 3. The sliding plate 8 slides in cooperation with the sliding groove 11. Specifically, by setting the sliding groove 11 on both sides of the lifting frame 2 to slide in cooperation with the sliding plate 8, one end of the sliding plate 8 is fixed to the side wall of the lifting plate 3 and slides up and down along the sliding groove 11, providing a guide path for the lifting plate 3 and ensuring that it maintains vertical movement during the lifting process. This achieves the effect of improving the stability of the lifting and preventing the lifting plate 3 from swaying or getting stuck.

[0026] The positioning structure includes an externally threaded tube 7 fixedly connected to the edge of the top end of the sampling tube 4. The bottom of the sampling tube 4 has an internal thread 6. The bottom of the lifting plate 3 is fixedly connected to an internally threaded tube 9 that matches the externally threaded tube 7. Specifically, by connecting the externally threaded tube 7 at the top end of the sampling tube 4 with the internal thread 6 at the bottom of the adjacent sampling tube 4, and by connecting the top sampling tube 4 with the internally threaded tube 9 at the bottom of the lifting plate 3, the sampling tubes 4 can be detachably fixed to each other and to the lifting plate 3. This facilitates flexible assembly or disassembly according to the sampling depth, achieving the effects of firm connection, convenient assembly and disassembly, and adaptability to different sampling depth requirements.

[0027] The sliding groove 11 is internally connected to a guide rod 12, and the sliding plate 8 slides in cooperation with the guide rod 12. The lifting assembly includes a lifting cylinder 5 installed at the top of the lifting frame 2. The output end of the lifting cylinder 5 is connected to the top of the lifting plate 3. Specifically, it is connected to the inside of the sliding groove 11 through the guide rod 12 and slides in cooperation with the sliding plate 8. At the same time, the lifting cylinder 5 is installed at the top of the lifting frame 2 and its output end is connected to the top of the lifting plate 3. The lifting cylinder 5 provides stable power to push the lifting plate 3 to rise and fall smoothly along the guide rod 12. The sliding plate 8 slides along the guide rod 12 to further enhance the guiding accuracy, thereby achieving the effect of smooth insertion and extraction of the sampling cylinder 4, reducing the labor intensity of operation, improving the degree of automation and operational reliability.

[0028] When using this portable sampler for environmental soil pollution detection, first carry the device to the target sampling point. The operator places both feet on the footplates 1 connected to the bottom of the lifting frame 2 on both sides. The conical spikes 14 fixed to the bottom of the footplates 1 on both sides then penetrate the ground, enhancing adhesion to the soil and preventing the device from slipping. At the same time, one end of the footplate 1 is fixedly connected to the side wall of the lifting frame 2, forming a stable support structure. The operator can hold the metal handles 13 fixed to the top of both sides of the lifting frame 2 for easy carrying, positioning, and maintaining balance during operation. Then, the lifting assembly installed at the top of the lifting frame 2 is activated. This assembly consists of a lifting cylinder 5, the output end of which is connected to the top of the lifting plate 3, driving the lifting plate 3 to move downward. One end of the sliding plate 8 on both sides of the lifting plate 3 is fixedly connected to its side wall, and the other end slides along the guide rod 12 in the sliding groove 11. The sliding groove 11 is opened on both sides of the lifting frame 2, guiding the sliding plate 8 to move downward. Rod 12 is connected to the groove, and sliding plate 8 slides with guide rod 12 to ensure that lifting plate 3 remains vertical and stable during lifting and lowering, avoiding tilting or jamming. As lifting plate 3 moves down, multiple sampling cylinders 4 connected to its bottom are simultaneously pressed into the soil. Sampling cylinders 4 are connected to each other by external threaded tube 7 at the top and internal thread 6 at the bottom of adjacent sampling cylinders 4. The top sampling cylinder 4 is connected to the internal threaded cylinder 9 at the bottom of lifting plate 3 by external threaded tube 7, which can be detached and fixed, and the number of cylinders can be flexibly increased or decreased according to the sampling depth. The bottom edge of the bottom sampling cylinder 4 is fixedly connected to a bottom toothed cylinder 10, which cuts into the soil first in the initial stage of penetration, playing a role in breaking the soil and guiding, reducing resistance and preventing the sampling cylinder from deviating. When the predetermined depth is reached, lifting cylinder 5 moves in the opposite direction to pull out lifting plate 3 and sampling cylinder 4 as a whole smoothly. Then, each section of sampling cylinder 4 is disassembled to obtain layered soil samples at different depths. The device significantly enhances stability during sampling through the cooperation of the foot pedal 1 and the cone 14, preventing slippage and overturning. The handle 13 facilitates operator control of the device's posture, improving portability and operability. The lifting cylinder 5 provides stable power, replacing the traditional manual rotation method, greatly reducing labor intensity and improving penetration efficiency. The sliding plate 8, sliding groove 11, and guide rod 12 together form a sliding structure, ensuring smooth operation and precise guidance of the lifting plate 3, preventing the sampling cylinder from tilting, and ensuring sample integrity. The sampling cylinders 4 are detachably connected to each other and to the lifting plate 3 through the external threaded tube 7, internal thread 6, and internal threaded cylinder 9, making disassembly and assembly convenient and the connection firm, adapting to different sampling depth requirements. The bottom toothed cylinder 10 effectively enhances soil breaking ability and is suitable for hard or compacted soils.

[0029] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A portable sampler for detecting environmental soil pollution, characterized in that, include: The lifting frame and two foot pedals connected to the bottom of both sides of the lifting frame; The lifting frame has a lifting plate at its inner top and several sampling cylinders at its bottom. Each pair of adjacent sampling cylinders is detachably connected to the same positioning structure. The top sampling cylinder is detachably connected to the bottom of the lifting plate, and a bottom toothed cylinder is fixedly connected to the bottom edge of the bottom sampling cylinder. Both sides of the lifting plate are slidably engaged with the inner wall of the lifting frame through a sliding structure, and the top of the lifting frame is equipped with a lifting component that cooperates with the lifting plate.

2. The portable sampler for detecting environmental soil pollution according to claim 1, characterized in that, Several conical spikes are fixedly connected to both sides of the bottom of the foot pedal, and one end of the foot pedal is fixedly connected to the side wall of the lifting plate.

3. The portable sampler for detecting environmental soil pollution according to claim 1, characterized in that, The lifting frame has sliding grooves on both sides, and the sliding structure includes a sliding plate. One end of the sliding plate is fixedly connected to the side wall of the lifting plate, and the sliding plate slides in conjunction with the sliding groove.

4. A portable sampler for detecting environmental soil pollution according to claim 2, characterized in that, Handles are fixedly connected to the top of both sides of the lifting frame, and the handles are made of metal.

5. A portable sampler for detecting environmental soil pollution according to claim 3, characterized in that, The positioning structure includes an externally threaded tube fixedly connected to the edge of the top end of the sampling tube. The bottom of the sampling tube is provided with an internal thread, and the bottom of the lifting plate is fixedly connected with an internally threaded tube that is compatible with the externally threaded tube.

6. A portable sampler for detecting environmental soil pollution according to claim 5, characterized in that, The sliding groove is internally connected to a guide rod, and the sliding plate slides in cooperation with the guide rod. The lifting assembly includes a lifting cylinder installed at the top of the lifting frame, and the output end of the lifting cylinder is connected to the top of the lifting plate.

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