Sampling equipment for detecting soil

Abstract

The utility model relates to detection soil sampling equipment which comprises a probing pipe body, a baffle is arranged in the probing pipe body, a sealing cover is connected to the upper end of the probing pipe body, a handle is arranged on the sealing cover, a limiting groove is formed in the probing pipe body, a pedal is connected with the probing pipe body through the limiting groove, and a plugging component is arranged at the bottom end of the probing pipe body. Compared with the prior art, the plugging device has the advantages that the probing pipe body can be inserted into the soil, the user does not need to bend down to move and adjust the pedal in the limiting groove to a proper position by feet, and the probing pipe body is inserted into the soil by pressing a handle on the probing pipe body and stepping on the pedal by feet; when sampling is completed and the probing pipe body is pulled out upwards, the plugging part prevents the soil from falling off from the opening in the bottom end of the probing pipe body, and a baffle in the probing pipe body is pushed to push out the soil in the probing pipe body.

Description

Technical Field

[0001] This application relates to a sampling device, and more particularly to a device for sampling soil when testing soil. Background Technology

[0002] Soil testing is a process of quantitative or qualitative analysis of soil texture, moisture, nutrients, pollution, and microbial activity using systematic technical methods. Its core purpose is to understand the current state of soil quality, the degree of pollution, and resource potential, and it is commonly used in agricultural production, environmental protection, and land management, among other fields. Soil testing begins with soil sampling, followed by the use of instruments and test strips to analyze the sampled soil.

[0003] Chinese Patent Publication No. CN221612409U discloses a soil testing and sampling device, including a sampler. A circular push plate is slidably installed inside the sampler. Multiple slots are formed on the rear outer wall of the sampler, one of which houses a pedal. A support base is fixedly installed on the rear outer wall of the sampler below the slot, and a limiting groove is formed within the support base. A pressing handle is located above the sampler, and a threaded connecting post is fixedly installed at the upper end of the sampler. By inserting the pedal into a slot at a suitable height, a semi-circular protrusion engages with a limiting through-hole, allowing the sampler to be inserted into the soil by foot. The pedal can be moved to different heights within the slots, assisting the operator in fully inserting the sampler into the soil for sampling. This avoids the problem of operators being unable to insert the device into the soil using only arm strength while bending over.

[0004] However, the above-mentioned patent has the following defects: when sampling soil in sandy or muddy areas, it is easy to cause soil backflow, that is, the sampled soil flows out from the bottom of the sampling tube, which ultimately results in the sampling tube not being able to retain a sufficient volume of sampled soil. Utility Model Content

[0005] The purpose of this invention is to provide a soil sampling device that is relatively labor-saving when taking soil samples, does not require bending over to adjust the height of the pedal, and prevents soil from spilling outwards when the sampling is completed.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is a soil sampling device, including an insertion tube and a pedal. A limiting groove is provided on the outer wall of the insertion tube. The pedal is movably connected to the insertion tube through the limiting groove. The pedal can move within the limiting groove. The bottom end of the insertion tube is inserted into the soil. Stepping on the pedal causes the lower end of the insertion tube to reach the soil sampling position.

[0007] A sealing component is provided at the bottom of the probe tube. When the probe tube is lifted upwards, the sealing component seals the soil inside the probe tube.

[0008] Furthermore, the limiting groove includes a first strip groove that extends along the length of the insertion tube. An adjustment port is connected to the long side of the first strip groove. There are several adjustment ports, which are arranged along the length of the first strip groove.

[0009] Furthermore, the adjustment port includes a second strip groove, which forms an angle with the first strip groove. A circular groove is connected to the free end of the second strip groove, and the pedal can be connected to either the first or the second strip groove.

[0010] Furthermore, the pedal is equipped with a control rope, both ends of which are connected to the pedal, forming an interval area between the control rope and the pedal.

[0011] Furthermore, a baffle is provided inside the probe tube. The baffle is a circular plate and is coaxially arranged with the probe tube. The baffle is in contact with the inner wall of the probe tube. When the baffle is pushed, the soil inside the probe tube can be discharged outward.

[0012] Furthermore, the baffle has an opening, in which a roller is installed. At the same time, a groove is formed on the inner wall of the probe, which is vertically arranged, and the roller rolls in the groove.

[0013] Furthermore, the probe body has a notch, through which a push rod passes, and the push rod connects with a baffle. A scale is set on the side of the notch, and the scale is set vertically.

[0014] Furthermore, the sealing component includes a casing and a sealing plate. The casing is fitted onto the probe body, and there is a certain gap between the casing and the probe body. One end of the sealing plate is connected to the casing via a hinge shaft. There are several sealing plates, which are arranged in an array around the central axis of the casing. When the sealing plate is flipped downwards to a horizontal state, it can seal the soil inside the probe body.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: When sampling soil, the probe is inserted into the soil without bending over. The foot pedal is moved within the limiting groove to adjust to the appropriate position. The probe is inserted into the soil by pressing the handle on the probe and stepping on the pedal. When sampling in areas with relatively hard soil, the handle is turned to rotate the drill teeth under the probe. The foot pedal is used to insert the probe into the soil. A sealing component is provided at the bottom of the probe to prevent soil from spilling out when the probe is pulled out after soil sampling. Pushing the baffle inside the probe can easily push the soil out of the probe. Attached Figure Description

[0016] Figure 1 This is a schematic cross-sectional view of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the limiting groove structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the baffle and the probe tube of this utility model;

[0019] Figure 4 This is a schematic diagram showing the connection position between the scale and the probe body of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection between the two probe tubes in this utility model;

[0021] Among them, 1-insertion tube body, 2-pedal, 3-cap, 4-handle, 5-baffle, 6-connecting rod, 7-drill teeth, 8-limiting groove, 9-first strip groove, 10-second strip groove, 11-circular groove, 12-control rope, 13-tube shell, 14-sealing plate, 15-inner extension plate, 16-first limiting ring, 17-second limiting ring, 18-sliding rod, 19-push rod, 20-roller, 21-scale. 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 of the present utility model. It should be understood that the preferred embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. In the embodiments, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0023] See Figures 1 to 5 As shown, a soil sampling device includes an insertion tube 1, a pedal 2, and a cap 3. A movable baffle 5 is provided inside the insertion tube 1, and the baffle 5 is coaxial with the insertion tube 1. The cap 3 is located at the upper end of the insertion tube 1. The pedal 2 is set on the outer wall of the insertion tube 1. The bottom end of the insertion tube 1 is inserted into the soil, and the pedal 2 is stepped down with the foot to insert the insertion tube 1 into the soil until the soil sampling position is reached. The insertion tube 1 is pulled out upwards, and the soil to be tested is pushed out of the insertion tube 1 by pushing the baffle 5 inside the insertion tube 1.

[0024] An external thread is provided on the outer wall near the top of the probe tube 1. The cap is screwed to the top of the probe tube 1. The probe tube 1 is made of hard metal to prevent deformation during soil sampling, which would affect the sampling operation. A connecting rod 6 is provided at the upper end of the cap 3. The bottom end of the connecting rod 6 is vertically connected to the cap 3. The top end of the connecting rod 6 is connected to a handle 4. The handle 4 is parallel to the cap and is fixedly connected. When sampling soil, press the handle 4 to insert the probe tube 1 into the soil. When the sampling operation is completed, pull the handle 4 upward to pull the probe tube 1 out of the soil.

[0025] When sampling soil, due to the different textures of the soil, when the soil is relatively hard or dry, it is difficult to insert the probe tube 1 into the soil by simply pressing the handle 4 and stepping on the pedal 2. At the same time, improper force may cause the probe tube 1 to be inserted into the soil at an inclined angle. This application provides a drill tooth 7 at the bottom end of the probe tube 1. The drill tooth 7 is installed at the bottom end of the probe tube 1. There are multiple drill teeth 7, which are arranged in an array around the central axis of the probe tube 1. When sampling soil with relatively hard texture, the probe tube 1 is first placed on the ground. The drill teeth 7 are rotated in the soil by rotating the handle 4. At the same time, the probe tube 1 is inserted into the soil by pressing the handle 4 and stepping on the pedal 2.

[0026] To facilitate adjustment of the horizontal height of the pedal 2, a limiting groove 8 is provided on the probe tube 1. Specifically, a first strip groove 9 is provided on the outer wall of the probe tube 1. The length of the first strip groove 9 extends along the axial direction of the probe tube 1. A second strip groove 10 is connected to the long side of the first strip groove 9. The second strip groove 10 forms an angle with the first strip groove 9 and extends downward at an angle. The cross-sections of both the first strip groove 9 and the second strip groove 10 are convex. A circular groove 11 is connected to the free end of the second strip groove 10. The second strip groove 10 and the circular groove 11 form an adjustment port. There are multiple adjustment ports. The opening is arranged along the long side of the first strip groove 9. At this time, the first strip groove 9, the second strip groove 10 and the circular groove 11 form a limiting groove 8. The pedal 2 is detachably connected to the probe tube 1 through the limiting groove 8. That is, the connecting end of the pedal 2 can move within the limiting groove 8, and the limiting groove 8 can restrict the position of the pedal 2. Specifically, a locking head is provided on the pedal 2. The locking head is located in the first strip groove 9, and the locking head can slide into the second strip groove 10. The pedal 2 will not fall out of the limiting groove 8 when it moves. Move the pedal 2 to the appropriate adjustment port, and insert the probe tube 1 into the soil by applying downward pressure to the pedal 2 with your foot.

[0027] To facilitate height adjustment of pedal 2 and eliminate the need for operators to bend over and operate it by hand, a control rope 12 is provided at the bottom of pedal 2. The two ends of the control rope 12 are connected to the two ends of pedal 2, forming an interval area between the control rope and the pedal. The operator places their foot in the interval area between pedal 2 and control rope 12, and moves pedal 2 within the limiting groove 8 by pulling pedal 2 upward or pressing control rope 12 downward, moving pedal 2 to the appropriate adjustment position. The operator can complete the adjustment while standing, saving time.

[0028] Meanwhile, when sampling sandy or muddy areas, due to the high fluidity of sand and mud, it is difficult to remove sand or mud by pulling the probe 1 upwards after soil sampling, as the bottom of the probe 1 is open. This application provides a sealing component at the bottom of the probe 1, comprising a shell 13 and a sealing plate 14. The shell 13 is fitted onto the probe 1, i.e., the shell 13 and the probe 1 are movably connected, and there is a certain gap between the shell 13 and the probe 1. An inner extension plate 15 is connected to the top of the shell 13. The inner extension plate 15 is annular, and both the inner extension plate 15 and the shell are fitted onto the probe 1. The probe 1 is formed by the inner extension plate 14. 5. A first limiting ring 16 is provided near the lower end of the probe tube 1. The first limiting ring 16 is located above the inner extension plate 15 and is coaxially arranged with the probe tube 1. The first limiting ring 16 is fixedly connected to the probe tube 1 and plays a limiting role in the sealing component, preventing the sealing component from moving upward when sampling in the soil. At the same time, a second limiting ring 17 is provided at the bottom end of the probe tube 1. The second limiting ring 17 is located below the inner extension plate 15 and is coaxially arranged with the probe tube 1. The second limiting ring 17 limits the inner extension plate 15 and prevents the sealing component from separating from the probe tube 1 when the probe tube 1 is pulled upward.

[0029] One end of the aforementioned sealing plate 14 is connected to the tube shell 13 via a hinge shaft. There are several sealing plates 14, which are arranged in an array around the central axis of the tube shell 13. The maximum rotation angle of the sealing plate 14 is 180°. At this time, the free end of the sealing plate 14 faces downward. A pin is detachably connected to the tube shell 13. The pin is inserted into the tube shell 13. When the pin is connected to the tube shell, it is located below the hinge shaft. At this time, the pin can support the sealing plate. That is, the pin limits the maximum rotation angle of the sealing plate 14, so that the sealing plate 14 can only rotate to 90°. When it is necessary to rotate the sealing plate 14 to 180°, the pin needs to be separated from the tube shell 13.

[0030] When the probe tube 1 is not pulled upward, the sealing plate 14 is located between the shell 13 and the probe tube 1, and the free end of the sealing plate 14 rests on the probe tube 1. At this time, the sealing plate 14 is in an inclined state. When the probe tube 1 is pulled upward, the shell 13 does not move at first, so that the sealing plate 14 gradually separates from the probe tube 1. When the two are completely separated, the sealing plate 14 flips downward so that it rests on the pin. At this time, the sealing plate 14 is in a horizontal state. At this time, the soil is sealed to a certain extent by several sealing plates 14.

[0031] When it is necessary to remove this portion of soil, the pin is separated from the casing 13, allowing the sealing plate 14 to continue to flip downwards, thereby allowing the soil to flow out.

[0032] To facilitate the removal of soil from the probe 1, a notch is provided on the probe 1. The notch is elongated and extends along the length of the probe 1. A baffle 5 is installed inside the probe 1. The baffle 5 is a circular plate and is coaxially arranged with the probe 1, and the baffle 5 is in contact with the inner wall of the probe 1. A sliding rod 18 is fixed on the baffle and passes through the notch. A push rod 19 is fixed to the outer end of the sliding rod 18. The push rod 19 can control the movement of the baffle 5 inside the probe 1. When the probe 1 is inserted downward into the soil, the soil inside the probe 1 pushes the baffle 5 upward. After sampling is completed, the push rod 19 is pushed downward to move the baffle 5 downward and push out the soil inside the probe 1.

[0033] To make the baffle 5 move more smoothly inside the probe tube 1, an opening is provided on the baffle 5, and a roller 20 is installed in the opening. At the same time, a groove is provided on the inner wall of the probe tube. The groove is vertically arranged, and the contact surface of the roller 20 is located inside the groove. That is, the baffle 5 can move down in the groove on the inner wall of the probe tube 1 by the rolling of the roller 20, which makes it easier to push the baffle 5 to discharge the soil inside the probe tube 1.

[0034] In order to understand the depth of the soil sample, a scale 21 is provided on the outer wall of the probe tube 1. The scale 21 is located on one side of the notch on the probe tube and is set vertically along the long side of the notch. When the probe tube is inserted into the soil, the sampling depth can be determined by the position of the push rod 19 on the scale.

[0035] During soil testing, different requirements may necessitate sampling from deeper soil locations. In such cases, the length of the probe tube 1 may limit sampling. By removing the cap 3 at the top of the probe tube 1, another probe tube can be screwed on using the external thread and tubular connector at the top of the probe tube 1. The connected probe tube has the same upper structure as the main body and also features notches, limiting grooves, and roller grooves. After connection, the notches, limiting grooves, and roller grooves on the connected probe tube align with the opening, limiting groove 8, and roller groove of the main body, thus achieving the same adjustment of the pedal 2 and the pushing action of the baffle 5. This connection of probe tubes enables soil sampling from deeper locations.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.

Claims

1. A soil sampling device, characterized in that, It includes an insertion tube and a pedal. A limiting groove is provided on the outer wall of the insertion tube. The pedal is movably connected to the insertion tube through the limiting groove. The pedal can move within the limiting groove. The bottom end of the insertion tube is inserted into the soil. Stepping on the pedal makes the bottom end of the insertion tube reach the soil sampling position. A sealing component is provided at the bottom of the probe tube. When the probe tube is lifted upwards, the sealing component seals the soil inside the probe tube.

2. The soil sampling device according to claim 1, characterized in that: The limiting groove includes a first strip groove that extends along the length of the insertion tube. An adjustment port is connected to the long side of the first strip groove. There are several adjustment ports, which are arranged along the length of the first strip groove.

3. The soil sampling device according to claim 2, characterized in that: The adjustment port includes a second strip groove, which forms an angle with the first strip groove. A circular groove is connected to the free end of the second strip groove, and the pedal can be connected to either the first or the second strip groove.

4. The soil sampling device according to claim 1, characterized in that: The pedal is equipped with a control rope, both ends of which are connected to the pedal, and a gap is formed between the control rope and the pedal.

5. The soil sampling device according to claim 1, characterized in that: The probe tube is equipped with a baffle plate, which is a circular plate. The baffle plate is coaxially arranged with the probe tube and contacts the inner wall of the probe tube. When the baffle plate is pushed, the soil inside the probe tube can be discharged outward.

6. The soil sampling device according to claim 5, characterized in that: The baffle has an opening, and a roller is installed in the opening. At the same time, a groove is opened on the inner wall of the probe body. The groove is vertically arranged, and the roller rolls in the groove.

7. A soil sampling device according to claim 5, characterized in that: The probe tube has a notch, through which a push rod passes. The push rod is connected to a baffle. A scale is set on the side of the notch, and the scale is set vertically.

8. A soil sampling device according to claim 1, characterized in that: The sealing component includes a casing and a sealing plate. The casing is fitted onto the probe body, and there is a certain gap between the casing and the probe body. One end of the sealing plate is connected to the casing via a hinge shaft. There are several sealing plates, which are arranged in an array around the central axis of the casing. When the sealing plate is flipped downwards to a horizontal state, it can seal the soil inside the probe body.

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