An environmental soil sampling tool

Abstract

The utility model belongs to soil detection technical field especially for a kind of environmental soil sampling tool, including insertion sampling cylinder, the insertion sampling cylinder both ends are provided with foot pedal, the insertion sampling cylinder top is provided with top cover, soil pushing mechanism and convenient material lifting mechanism are provided on the top cover, the soil pushing mechanism includes the sliding cylinder slidingly arranged on top cover, the sliding cylinder is inserted in the one end fixedly arranged in insertion sampling cylinder inside and is provided with push plate, through the environmental soil sampling tool of the utility model, after insertion sampling cylinder is inserted into soil, the retractable head of the bottom end of convenient material lifting mechanism can be quickly unfolded to limit soil bottom end, effectively prevent soil from sliding or falling in the process of lifting, greatly improve the success rate of soil sampling and the integrity of sample, provide reliable soil sample for subsequent accurate environmental detection analysis.

Description

Technical Field

[0001] This utility model belongs to the field of soil testing technology, specifically relating to an environmental soil sampling tool. Background Technology

[0002] In environmental monitoring, soil samples are frequently obtained for analysis to understand their composition, pollution levels, and other information. Existing environmental soil sampling tools have some shortcomings in practical use. For example, when the tool is inserted into the soil to obtain a sample and then pulled out, the soil can easily slip inside the tool due to friction between the soil and the tool's inner wall, as well as the soil's own weight. Some soil may even fall back into the ground, affecting the integrity and accuracy of the sample and hindering subsequent testing and analysis. Therefore, a soil sampling tool that can effectively solve these problems is needed. Utility Model Content

[0003] To address the problems mentioned in the background section, this invention provides an environmental soil sampling tool. By incorporating a retractable head at the bottom of the material extraction mechanism, the retractable head can limit the bottom of the soil inside the extraction cylinder after the extraction cylinder is inserted into the soil, thereby facilitating the smooth extraction of the soil and ensuring the integrity and accuracy of the soil sampling.

[0004] This utility model provides an environmental soil sampling tool, including an insertion sampling cylinder. Foot pedals are provided at both ends of the insertion sampling cylinder, allowing the operator to apply force by foot to insert the cylinder into the soil. A top cover is provided at the top of the insertion sampling cylinder, serving to seal and support other components.

[0005] A soil pushing mechanism and a material lifting mechanism are installed on the top cover. The soil pushing mechanism includes a slide cylinder slidably mounted on the top cover, with a push plate fixedly mounted at one end of the slide cylinder inserted into the material collection cylinder. A tension spring is fixedly installed between the top of the push plate and the inner top of the top cover, and a push plate is installed at the top of the slide cylinder. When it is necessary to push the soil out of the material collection cylinder, the push plate is pressed down, and the slide cylinder drives the push plate to move downward against the tension of the tension spring, thereby pushing the soil out and inserting it into the material collection cylinder.

[0006] The key feature is the ease of material lifting mechanism, which includes a guide rod inserted inside the slide cylinder. A pull ring is fixed to the top of the guide rod for easy lifting by the operator. A plug is fixed to the bottom of the guide rod, and several grooves are arranged in a ring around the bottom of the guide rod. A retractable head is mounted in each groove via a pivot, and a torsion spring connects the retractable head to the guide rod. When the material extraction cylinder is inserted into the soil, pressing down on the guide rod inserts the plug into the soil. At this time, the retractable head unfolds under the action of the torsion spring, limiting the bottom of the soil inserted into the material extraction cylinder. When the guide rod is pulled up, the retractable head prevents the soil from sliding down inside the material extraction cylinder, facilitating smooth extraction of the soil.

[0007] Furthermore, the foot pedal and the insert material cylinder are fixedly connected by welding, and the surface of the foot pedal is provided with crisscrossing anti-slip stripes to increase the friction when the operator steps on it, ensuring safe and stable operation.

[0008] The top cover and the insertion sampling cylinder are connected by threads for easy installation and disassembly. The edge of the top cover is equipped with a sealing rubber ring made of nitrile rubber to ensure the airtightness of the connection between the top cover and the insertion sampling cylinder, preventing leakage of moisture, gas and other substances in the soil, which could affect the integrity of the soil sample.

[0009] A guide sleeve fixed to the top cover is provided between the slide cylinder and the top cover. The slide cylinder is slidably connected inside the guide sleeve. The inner wall of the guide sleeve is provided with a polytetrafluoroethylene coating to reduce friction when the slide cylinder slides, making the operation of the soil pushing mechanism smoother.

[0010] The diameter of the pusher plate is matched with the inner diameter of the insertion cylinder, and the edge of the pusher plate is equipped with a wear-resistant rubber pad with a thickness of 3-5 mm to ensure that the pusher plate can fit tightly against the inner wall of the insertion cylinder, effectively pushing out the soil while reducing the wear between the pusher plate and the inner wall of the insertion cylinder.

[0011] The guide rod and the slide cylinder are fitted with a clearance. The difference between the outer diameter of the guide rod and the inner diameter of the slide cylinder is 0.5-1 mm. This ensures that the guide rod can slide freely in the slide cylinder while avoiding excessive clearance between the two, which would affect the operating accuracy.

[0012] The retractable head has an arc-shaped plate structure with hemispherical rough protrusions on its outer arc surface to increase friction with the soil and better limit soil movement. Furthermore, the angle between the retractable head and the guide rod when extended ranges from 45° to 60°. Within this angle range, the retractable head can effectively expand to limit soil movement without compromising the ease of inserting the material-receiving cylinder into the soil due to an excessively large angle.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] With the environmental soil sampling tool of this utility model, after the sampling cylinder is inserted into the soil, the retractable head at the bottom of the lifting mechanism can quickly unfold to limit the bottom of the soil, effectively preventing the soil from sliding or falling during the lifting process, greatly improving the success rate of soil sampling and the integrity of the sample, and providing a reliable soil sample for subsequent accurate environmental testing and analysis. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a cross-sectional structural diagram of the material lifting state of this utility model;

[0019] Figure 4 This is a partial structural schematic diagram of the present invention;

[0020] In the picture:

[0021] Insert material cylinder 1, foot pedal 2, top cover 3, soil pushing mechanism 4, slide cylinder 41, push plate 42, tension spring 43, push plate 44, material lifting mechanism 5, guide rod 51, pull ring 52, plug 53, groove 54, retractable head 55. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] like Figure 1-4 As shown;

[0025] An environmental soil sampling tool.

[0026] In this implementation plan: To solve the technical problems existing in the prior art, such as the "when the soil sampling tool is inserted into the soil to obtain a sample, when the soil is pulled out from the ground, due to the friction between the soil and the inner wall of the soil sampling tool and the soil's own weight, the soil is prone to slide inside the soil sampling tool, and some soil may even fall back into the ground, affecting the integrity and accuracy of the soil sample, which is not conducive to subsequent testing and analysis work" in practical use, this problem is obviously a real and difficult problem to solve. Therefore, in order to solve this technical problem, an environmental soil sampling tool is provided.

[0027] like Figure 1-4 As shown in the figure;

[0028] In conjunction with the above, the device includes an insertion and extraction cylinder 1, with foot pedals 2 at both ends, a top cover 3, a soil pushing mechanism 4, and a material lifting mechanism 5 on the top cover 3. The soil pushing mechanism 4 includes a slide cylinder 41 slidably mounted on the top cover 3. A push plate 42 is fixedly mounted at one end of the slide cylinder 41 inserted into the insertion and extraction cylinder 1. A tension spring 43 is fixedly mounted between the top of the push plate 42 and the inner top of the top cover 3. A push plate 44 is mounted at the top of the slide cylinder 41. The material lifting mechanism 5 includes a guide rod 51 inserted into the slide cylinder 41. A pull ring 52 is fixed at the top of the guide rod 51. A plug 53 is fixed at the bottom of the guide rod 51. Several grooves 54 are arranged in a ring around the bottom of the guide rod 51. A retractable head 55 is mounted at each groove 54 via a rotating shaft. A torsion spring is provided between the retractable head 55 and the guide rod 51.

[0029] The foot pedal 2 is fixedly connected to the insert feeding cylinder 1 by welding, and the surface of the foot pedal 2 is provided with anti-slip texture, which is a crisscross strip structure.

[0030] The top cover 3 is connected to the insertion feeding cylinder 1 by a thread. The edge of the top cover 3 is provided with a sealing rubber ring, and the sealing rubber ring is made of nitrile rubber.

[0031] A guide sleeve is provided between the slide cylinder 41 and the top cover 3. The guide sleeve is fixed on the top cover 3. The slide cylinder 41 is slidably connected inside the guide sleeve. The inner wall of the guide sleeve is provided with a friction-reducing coating, which is a polytetrafluoroethylene coating.

[0032] The diameter of the push plate 42 is adapted to the inner diameter of the insertion feeding cylinder 1, and the edge of the push plate 42 is provided with a wear-resistant rubber pad, the thickness of which is 3-5 mm.

[0033] The guide rod 51 and the slide cylinder 41 are fitted with a clearance, and the difference between the outer diameter of the guide rod 51 and the inner diameter of the slide cylinder 41 is in the range of 0.5-1 mm.

[0034] The retractable head 56 has an arc-shaped plate structure. The outer arc surface of the retractable head 56 is provided with rough protrusions. The rough protrusions are hemispherical, and the angle between the retractable head 56 and the guide rod 51 when the head is unfolded is in the range of 45°-60°.

[0035] Insertion and soil sampling operation

[0036] The operator moves the soil sampling tool to the desired location, places both feet on the foot pedals at both ends of the sampling cylinder, and uses their own weight to apply downward force, gradually inserting the sampling cylinder into the soil. Once the desired depth is reached, the application of force is stopped.

[0037] Start-up facilitates the limiting of the material lifting mechanism

[0038] The operator holds the pull ring at the top of the guide rod and presses it down, inserting the plug at the bottom of the guide rod into the soil. As the plug is inserted, the retractable head at the groove around the bottom of the guide rod unfolds around the pivot under the action of a torsion spring, thus limiting the bottom of the soil inserted into the material collection cylinder. Because the retractable head has an arc-shaped plate structure and hemispherical rough protrusions on its outer arc surface, it can make good contact with the soil and provide greater friction, effectively preventing the soil from sliding down.

[0039] Extracting soil samples

[0040] The operator pulls the ring upwards, and the guide rod moves the retractor head upwards. Due to the limiting effect of the retractor head on the soil, the soil inserted into the sampling cylinder is stably lifted, thus successfully pulling the soil sample out from the ground.

[0041] Soil samples were released.

[0042] Move the soil sampling tool to the sample collection point, and the operator presses down on the push plate of the soil pushing mechanism. The slide cylinder drives the push plate to move downward against the tension of the tension spring, pushing out the soil inserted into the sampling cylinder, thus completing the collection of the soil sample.

[0043] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An environmental soil sampling tool, characterized by, The device includes an insertion and feeding cylinder (1), with foot pedals (2) at both ends. A top cover (3) is provided on the top of the insertion and feeding cylinder (1). A soil pushing mechanism (4) and a material lifting mechanism (5) are provided on the top cover (3). The soil pushing mechanism (4) includes a sliding cylinder (41) slidably mounted on the top cover (3). A pusher plate (42) is fixedly mounted at one end of the sliding cylinder (41) inserted into the inside of the insertion and feeding cylinder (1). A fixed connection is established between the top of the pusher plate (42) and the inner top of the top cover (3). A tension spring (43) is provided, and a push plate (44) is provided at the top of the slide cylinder (41). The material lifting mechanism (5) includes a guide rod (51) inserted into the slide cylinder (41). A pull ring (52) is fixed at the top of the guide rod (51), and a plug (53) is fixed at the bottom of the guide rod (51). Several grooves (54) are arranged in a ring array around the bottom of the guide rod (51). A take-up and release head (55) is provided at the groove (54) through a rotating shaft. A torsion spring is provided between the take-up and release head (55) and the guide rod (51).

2. An environmental soil coring tool according to claim 1, wherein, The foot pedal (2) is fixedly connected to the insert feeding cylinder (1) by welding, and the surface of the foot pedal (2) is provided with anti-slip texture, which is a crisscross strip structure.

3. An environmental soil coring tool according to claim 1, wherein: The top cover (3) is connected to the insertion feeding cylinder (1) by a thread. The edge of the top cover (3) is provided with a sealing rubber ring, and the material of the sealing rubber ring is nitrile rubber.

4. An environmental soil coring tool according to claim 1, wherein: A guide sleeve is provided between the slide cylinder (41) and the top cover (3). The guide sleeve is fixed on the top cover (3). The slide cylinder (41) is slidably connected inside the guide sleeve. The inner wall of the guide sleeve is provided with a friction-reducing coating, which is a polytetrafluoroethylene coating.

5. An environmental soil coring tool according to claim 1 wherein: The diameter of the pusher plate (42) is adapted to the inner diameter of the insertion feeding cylinder (1), and the edge of the pusher plate (42) is provided with a wear-resistant rubber pad, the thickness of which is 3-5 mm.

6. An environmental soil coring tool according to claim 1 wherein: The guide rod (51) and the slide cylinder (41) are in clearance fit, and the difference between the outer diameter of the guide rod (51) and the inner diameter of the slide cylinder (41) is in the range of 0.5-1 mm.

7. An environmental soil coring tool according to claim 1 wherein: The retractable head (55) is an arc-shaped plate structure. The outer arc surface of the retractable head (55) is provided with rough protrusions. The rough protrusions are hemispherical, and the angle between the retractable head (55) and the guide rod (51) when the head is unfolded is 45°-60°.

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