Soil sampling device for environmental detection

Abstract

The utility model discloses a soil sampling device for environmental detection and relates to the technical field of soil sampling devices. The device comprises a mounting base, an extension rod is arranged at the bottom end of the mounting base, the top end of the extension rod movably extends into the mounting base and is rotationally connected with the bottom end of the inner wall of the mounting base, a ratchet wheel is fixedly connected to the outer side of the top of the extension rod and located in the mounting base, and a pawl is rotationally connected to the side, close to the ratchet wheel, in the mounting base. The inserting end of the pawl is clamped in the ratchet wheel, and a fixing block is fixedly connected to the side, close to the pawl, of the interior of the mounting base. By rotating the handles and driving the mounting base to rotate at the same time, the pawl, the fixing block and the reset spring are further driven to rotate in the same direction, the ratchet wheel and the pawl are matched, continuous rotation of the extension rod can be achieved while the two handles are held by the two hands all the time, and the problem that the operation is tedious due to the fact that the holding handles need to be continuously and alternately replaced is solved; the soil sampling efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of soil sampling devices, specifically to an environmental testing soil sampling device. Background Technology

[0002] Environmental monitoring refers to the use of physical, chemical, and biological scientific and technological methods to intermittently or continuously measure environmental elements such as water quality, air, soil, solid waste, noise, and oil and gas recovery to assess the current state and development trends of environmental quality. It provides a scientific basis for environmental management, pollution source control, and environmental planning, and is an important means of protecting the environment and maintaining ecological balance.

[0003] Soil sampling requires the use of soil samplers to collect representative soil samples from fields or experimental plots. These samplers come in various types, including manual spiral samplers and electric sampling drills, and can be selected according to different soil types and depth requirements. Soil samplers possess high precision and adaptability, ensuring that the collected soil samples accurately reflect soil conditions and provide reliable data for environmental monitoring.

[0004] However, traditional soil sampling methods using drilling require continuous rotation of the sampling device. During rotation, the hands must be repeatedly switched to hold the handle, which is inconvenient and detrimental to the stability of the equipment. To address these issues, the inventors have proposed an environmental testing soil sampling device. Utility Model Content

[0005] In order to solve the problem of the inconvenience of traditional methods of manually drilling and sampling soil, the purpose of this utility model is to provide a soil sampling device for environmental testing.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an environmental testing soil sampling device, including a mounting base, an extension rod at the bottom end of the mounting base, the top end of the extension rod extending movably into the interior of the mounting base and rotatably connected to the bottom end of the inner wall of the mounting base, a ratchet fixedly connected to the outer side of the top end of the extension rod and inside the mounting base, a pawl rotatably connected to the interior of the mounting base near the ratchet, the insertion end of the pawl engaging in the ratchet, a fixing block fixedly connected to the interior of the mounting base near the pawl, a return spring fixedly connected between the pawl and the fixing block, and a foot pedal fixedly connected to the outer side of the extension rod and above the sampling cylinder.

[0007] Preferably, a sampling tube is fixedly connected to the bottom end of the extension rod, and the bottom end of the sampling tube is set as a pointed tip.

[0008] Preferably, the extension rod has an ejector rod that moves through its interior, the bottom end of the ejector rod extends into the interior of the sampling cylinder and is fixedly connected to an ejector plate, and the top end of the ejector rod is fixedly connected to a limit rod.

[0009] Preferably, the mounting base has two symmetrically distributed handles fixedly connected to its side, and the outer side of the handles away from the mounting base is fixedly fitted with a rubber sleeve.

[0010] Preferably, the extension rod, sampling cylinder, and ejector rod are all made of aluminum alloy.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] By turning the handle, the mounting base rotates simultaneously, causing the pawl, fixing block, and return spring to rotate in the same direction. Utilizing the cooperation between the ratchet and pawl, when the pawl rotates towards the return spring, it disengages from the ratchet's tooth groove and compresses the return spring. When the pawl rotates away from the return spring, the spring force of the return spring causes the pawl to tightly engage with the ratchet. Simultaneously, the rotation of the pawl drives the extension rod to rotate, allowing continuous rotation of the extension rod while both hands are constantly gripping the two handles. This avoids the cumbersome problem of continuously alternating hand grips and further improves soil sampling efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0015] Figure 2 This is a side sectional view of the present invention.

[0016] Figure 3 This is a schematic diagram of the internal structure of the mounting base in this utility model.

[0017] Figure 4 This utility model Figure 2 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Mounting base; 2. Extension rod; 3. Ratchet; 4. Pad; 5. Fixing block; 6. Return spring; 7. Sampling cylinder; 8. Ejector rod; 9. Limiting rod; 10. Ejector plate; 11. Handle; 12. Rubber sleeve; 13. Tip; 14. Foot pedal. Detailed Implementation

[0019] 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.

[0020] Example: Figure 1-4 As shown, this utility model provides an environmental testing soil sampling device, including a mounting base 1. An extension rod 2 is provided at the bottom end of the mounting base 1. The top end of the extension rod 2 extends movably into the interior of the mounting base 1 and is rotatably connected to the bottom end of the inner wall of the mounting base 1. A ratchet 3 is fixedly connected to the outer side of the top end of the extension rod 2 and inside the mounting base 1. A pawl 4 is rotatably connected to the interior of the mounting base 1 near the ratchet 3. The insertion end of the pawl 4 is engaged in the ratchet 3. A fixing block 5 is fixedly connected to the interior of the mounting base 1 near the pawl 4. A return spring 6 is fixedly connected between the pawl 4 and the fixing block 5.

[0021] The bottom end of the extension rod 2 is fixedly connected to a sampling cylinder 7, and the bottom end of the sampling cylinder 7 is set as a pointed tip 13.

[0022] By adopting the above technical solution and setting up the sampling tube 7, it is convenient to collect and store samples obtained from the soil. Furthermore, the bottom end of the sampling tube 7 is set as a pointed tip, which makes it easier to penetrate the soil compared to a flat or blunt design, making the sampling process smoother and more efficient.

[0023] The extension rod 2 has an ejector rod 8 that moves through its interior. The bottom end of the ejector rod 8 extends into the interior of the sampling cylinder 7 and is fixedly connected to an ejector plate 10. The top end of the ejector rod 8 is fixedly connected to a limit rod 9.

[0024] By adopting the above technical solution, by pushing the ejector rod 8 downward, the ejector plate 10 is moved downward, which facilitates the ejection of the sample obtained inside the sampling cylinder 7 from inside the sampling cylinder 7.

[0025] The side of the mounting base 1 is fixedly connected to two symmetrically distributed handles 11.

[0026] By adopting the above technical solution and by setting the handle 11, the lever arm of the extension rod 2 can be increased, thereby reducing the rotational force applied by rotating the extension rod 2.

[0027] A rubber sleeve 12 is fixedly fitted on the outer side of the handle 11 away from the mounting base 1.

[0028] By adopting the above technical solution and setting the rubber sleeve 12, the friction between the hand and the throttle can be increased, making the grip more stable and less likely to slip.

[0029] A foot pedal 14 is fixedly connected to the outside of the extension rod 2 and above the sampling cylinder 7.

[0030] By adopting the above technical solution and by setting a foot pedal 14, 17 can also be inserted into the soil by stepping on the foot pedal 14, thereby increasing the diversity of sampling methods.

[0031] The extension rod 2, sampling cylinder 7 and ejector rod 8 are all made of aluminum alloy.

[0032] By adopting the above technical solution, the extension rod 2, sampling cylinder 7 and ejector rod 8 are all made of aluminum alloy, which has good rigidity and lightness.

[0033] Working principle: When sampling soil during environmental testing, the handle 11 is rotated by holding the rubber sleeve 12, which in turn rotates the mounting base 1. This causes the pawl 4, the fixing block 5, and the return spring 6 to rotate in the same direction. Utilizing the cooperation between the ratchet 3 and the pawl 4, when the pawl 4 rotates towards the return spring 6, the pawl 4 disengages from the tooth groove of the ratchet 3 and compresses the return spring 6. At this time, the extension rod 2 will not rotate with the rotation of the mounting base. When the pawl 4 rotates away from the return spring 6, the elastic force of the return spring 6 causes the pawl 4 to be tightly inserted into the ratchet 3. Simultaneously, the rotation of the pawl 4 drives the extension rod 2 to rotate, thus enabling continuous rotation of the extension rod 2 while both hands are continuously holding the two handles 11.

[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An environmental detection soil sampling device comprising a mounting base (1) characterised in that: The bottom end of the mounting base (1) is provided with an extension rod (2), the top end of the extension rod (2) movably extends to the inside of the mounting base (1) and is rotationally connected with the bottom end of the inner wall of the mounting base (1), the outside of the top of the extension rod (2) and inside the mounting base (1) is fixedly connected with a ratchet wheel (3), the side of the inside of the mounting base (1) close to the ratchet wheel (3) is rotationally connected with a pawl (4), the insertion end of the pawl (4) is clamped in the ratchet wheel (3), the side of the inside of the mounting base (1) close to the pawl (4) is fixedly connected with a fixed block (5), the pawl (4) and the fixed block (5) are fixedly connected with a return spring (6).

2. The environmental detection soil sampling device of claim 1, wherein, The bottom end of the extension rod (2) is fixedly connected with a sampling cylinder (7), the bottom end of the sampling cylinder (7) is provided with a pointed end (13).

3. The environmental detection soil sampling device of claim 1, wherein, The inside of the extension rod (2) movably penetrates a ejection rod (8), the bottom end of the ejection rod (8) extends to the inside of the sampling cylinder (7) and is fixedly connected with an ejection plate (10), the top end of the ejection rod (8) is fixedly connected with a limiting rod (9).

4. The environmental detection soil sampling device of claim 1, wherein, The side of the mounting base (1) is fixedly connected with two symmetrically distributed handles (11).

5. The environmental detection soil sampling device of claim 4, wherein, The outside of the end of the handle (11) away from the mounting base (1) is fixedly sleeved with a rubber sleeve (12).

6. The environmental detection soil sampling device of claim 1, wherein, The outside of the extension rod (2) and above the sampling cylinder (7) is fixedly connected with a stepping plate (14).

7. The environmental detection soil sampling device of claim 3, wherein, The extension rod (2), the sampling cylinder (7) and the ejection rod (8) are all made of aluminum alloy material.

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