Cross-contamination prevention type soil stratified sampler

Abstract

The utility model relates to sampler technical field, and disclose a kind of anti-cross contamination type soil layered sampler, a kind of anti-cross contamination type soil layered sampler, including the sleeve pipe that can be used for soil sampling, sealing block slidingly attached to the inner wall of sampling pipe, vertical rod is fixed at the top center of sealing block, the top of vertical rod is penetrated in the inside of sleeve pipe, press plate is fixed at the top of vertical rod, the utility model cooperates by sleeve pipe, knob, sampling pipe and push material assembly, so that device can be sealed in sampling pipe in sinking process by push material assembly when using, so that sampling pipe can be directly contacted with target depth soil, complete collection, prevent multiple levels of soil sample in the same sampling pipe, cause cross contamination, and also can use push material assembly to push soil sample away from sampling pipe, and further solve the problem that existing device soil sample can be attached to the inside of part, staff is not convenient to separate and take off.

Description

Technical Field

[0001] This utility model relates to the field of sampler technology, specifically a soil stratification sampler designed to prevent cross-contamination. Background Technology

[0002] Soil sampling is an important part of soil management. By collecting and testing soil samples from the target area, staff can gain an accurate understanding of the soil conditions in that area. The soil sampling process requires the use of relevant sampling equipment.

[0003] Chinese patent CN220339700U discloses a soil stratification sampler. After the support component of the device is erected on the ground, the threaded rod is driven by the force rod to rotate. The threaded rod can descend to allow the first and second locking teeth to engage. The sampling tube can rotate with the threaded rod to more easily penetrate into the soil and obtain soil samples, which is suitable for use in areas with hard soil. When the sampling tube is taken out from the ground, the threaded rod is lifted to separate the first and second locking teeth before rotation is required. The sampling tube can be pulled out axially to avoid rotation of the sampling tube. This can avoid the problem of a large number of samples falling off due to the rotation of the sampling tube when obtaining soil samples with poor adhesion.

[0004] However, in actual use, when the soil sample is inside the sampling bucket, the narrow space will enhance the cohesion and friction between the soil particles, thus forming a strong adhesion force. This allows the soil sample to adhere tightly to the inner wall of the sampling bucket, making it inconvenient for staff to separate the sample from the sampling parts. Therefore, a cross-contamination-preventing soil stratification sampler is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a soil stratification sampler that prevents cross-contamination, in order to solve the problem mentioned in the background art that, in actual use, when the soil sample is inside the sampling bucket, the narrow space will enhance the cohesion and friction between the soil particles, thereby forming a strong adhesion force, so that the soil sample can be tightly attached to the inner wall of the sampling bucket, making it inconvenient for staff to separate the sample from the sampling parts.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a soil stratification sampler for preventing cross-contamination, comprising a sleeve for soil sampling, a handle symmetrically fixed to the upper side of the sleeve, and a sampling tube provided at the bottom of the sleeve;

[0007] The sealing block slides against the inner wall of the sampling tube, the vertical rod is fixed at the top center of the sealing block, the top of the vertical rod penetrates the inside of the sleeve, the pressing plate is fixed to the top of the vertical rod, the surface of the vertical rod is provided with a fixing structure, and the outer wall of the sleeve is provided with a stepping component.

[0008] As a preferred technical solution of this application, the bottom of both the sampling tube and the sealing block is a sloping surface structure, and the bottom of the sealing block is in contact with the bottom of the sampling tube.

[0009] As a preferred technical solution of this application, the top sidewall of the sampling tube is provided with a threaded section, and the sampling tube is threadedly connected to the bottom inner wall of the sleeve.

[0010] As a preferred technical solution of this application, the fixing structure includes a plug rod, side plates and a tension spring. The plug rod is inserted into the interior of the vertical rod, and the two side plates are slidably sleeved on the surface of the plug rod. The bottom of the side plates is fixedly connected to the top outer wall of the sleeve. The tension spring is nested and fixedly fixed to the surface of the plug rod, and the end of the tension spring is fixedly connected to the side wall of the side plate.

[0011] As a preferred technical solution of this application, the pedal component includes a side rod, a connecting rod, and a pedal. The side rod is symmetrically connected to the outer wall of the sleeve, the two connecting rods are symmetrically fixed to the side of the side rod, and the pedal is fixed to the bottom side of the side rod.

[0012] As a preferred technical solution of this application, the sidewalls of the sleeve and the sampling tube are symmetrically provided with sliding grooves, and the side rod is slidably connected inside the sliding groove.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects:

[0014] This invention utilizes the cooperation of a sleeve, handle, sampling tube, and pusher assembly to block the sampling tube during the sinking process, allowing the sampling tube to directly contact the soil at the target depth for collection. This prevents soil samples from multiple layers from being located in the same sampling tube, thus avoiding cross-contamination. Furthermore, the pusher assembly can push the soil sample away from the sampling tube, thereby solving the problem in existing devices where soil samples adhere to the inside of parts, making it inconvenient for workers to separate and remove them.

[0015] This invention, through the cooperation of a fixed structure and a stepping component, enhances the stability of the material pushing component during use, thereby preventing displacement and affecting sampling. Furthermore, the stepping component ensures that the sleeve is inserted and removed at similar angles each time, thus accelerating the efficiency of "drilling" for sampling. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a first-view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the second-view structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the sampling tube of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the sleeve of this utility model;

[0021] Figure 5 This is a three-dimensional structural diagram of the fixing mechanism of this utility model;

[0022] Figure 6 This is a three-dimensional structural diagram of the pedal component of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Sleeve; 2. Handle; 3. Sampling tube; 4. Pushing assembly; 401. Sealing block; 402. Vertical rod; 403. Press plate; 5. Fixing structure; 501. Insert rod; 502. Side plate; 503. Tension spring; 6. Stepping component; 601. Side rod; 602. Connecting rod; 603. Pedal. Detailed Implementation

[0024] 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.

[0025] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce. Example

[0026] Please see Figure 1-6This utility model provides a technical solution: a soil stratification sampler for preventing cross-contamination, including a sleeve 1 for soil sampling. In order to allow the sleeve 1 to move up and down along the side rod 601 to complete the purpose of "drilling" for sampling and to limit the sampling tube 3, so as to facilitate the operator to rotate the sleeve 1 and separate the sleeve 1 from the sampling tube 3, the side walls of the sleeve 1 and the sampling tube 3 are symmetrically provided with sliding grooves. The top view of the sliding groove is a "T" shaped structure. The side rod 601 is slidably connected to the inside of the sliding groove. The upper side of the sleeve 1 is symmetrically fixed with a handle 2. The bottom of the sleeve 1 is provided with a sampling tube 3. The inside of the sampling tube 3 is smooth. The sampling tube 3 is slidably sealed and fitted with the sealing block 401.

[0027] To facilitate accurate sampling, reduce cross-contamination of samples, and allow for rapid separation of samples from the sampling tube 3, a pusher assembly 4 is installed inside the sampling tube 3. The pusher assembly 4 includes a sealing block 401, a vertical rod 402, and a pressing plate 403. The sealing block 401 slides against the inner wall of the sampling tube 3. The vertical rod 402 is fixed at the top center of the sealing block 401, and its top extends through the interior of the sleeve 1. The vertical rod 402 and the sleeve 1 are connected by a snap-fit ​​sliding connection. The pressing plate 403 is fixed to the vertical rod 402. To facilitate the replacement of sampling tube 3, enable independent sampling of different soil layers, improve the effect of preventing cross-contamination, and facilitate the cleaning of sampling tube 3, a trapezoidal thread section is provided on the top side wall of sampling tube 3. Due to its small helix angle and large contact area, the trapezoidal thread section has excellent self-locking performance. Sampling tube 3 is threaded to the bottom inner wall of sleeve 1. A fixing structure 5 is provided on the surface of vertical rod 402, and a stepping component 6 is provided on the outer wall of sleeve 1.

[0028] In order to enable the device to achieve a good drilling effect and thus improve sampling efficiency, the bottom of both the sampling tube 3 and the sealing block 401 are constructed with a sloping surface, and the bottom of the sealing block 401 fits into the bottom of the sampling tube 3.

[0029] To increase the stability of the sealing block 401 during operation, a fixing structure 5 is provided. The fixing structure 5 includes an insertion rod 501, a side plate 502, and a tension spring 503. Several insertion holes are evenly distributed at the upper end of the vertical rod 402. The insertion rod 501 is inserted into the insertion holes. The two side plates 502 are slidably sleeved on the surface of the insertion rod 501. The bottom of the side plate 502 is fixedly connected to the top outer wall of the sleeve 1. The tension spring 503 is nested and fixedly fixed to the surface of the insertion rod 501. The end of the tension spring 503 is fixedly connected to the side wall of the side plate 502. The insertion rod 501, the side plate 502, and the sleeve 1 are all made of alloy steel, which has high strength and will not deform or break, thus ensuring the smooth progress of sampling.

[0030] To facilitate operator control and maintain a consistent insertion angle during each drilling operation, thereby improving drilling efficiency, a stepping component 6 is provided. The stepping component 6 includes a side rod 601, connecting rods 602, and a pedal 603. The side rod 601 is symmetrically connected to the outer wall of the sleeve 1, and the two connecting rods 602 are symmetrically fixed to the sides of the side rod 601. The pedal 603 is fixed to the bottom side of the side rod 601. The side rod 601 has an "L"-shaped structure. Magnets are provided on the top surface of the side rod 601 and the outer wall of the sleeve 1, and the magnets attract each other. This design allows the side rod 601 to remain stable when carried, thereby increasing portability.

[0031] The working principle or structural principle of the device is as follows: When using the device, the operator can step on the pedal 603 with both feet, then hold the handle 2 with both hands and press down on the sleeve 1. During the sinking process, the sleeve 1 will drive the sampling tube 3 and the sealing block 401 to move down. Due to the sloping surface structure of the two, the device can form a good "drilling" effect. When the sampling tube 3 sinks to the specified depth, the operator can pull the insertion rod 501 to disengage it from the current insertion hole. Then, by pulling the vertical rod 402 upward through the pressing plate 403, the sealing block 401 will move upward, creating an "empty chamber" at the bottom of the sampling tube 3. When the vertical rod 402 moves up a certain distance, the insertion rod 501 is released. The insertion rod 501 will reset under the action of the tension spring 503, thus engaging with the nearest insertion hole. 02 Locked again, next, when the staff lowers the sleeve 1, the soil sample will enter the bottom of the sampling tube 3. Then, the staff uses the sleeve 1 to remove the sampling tube 3 from the soil. Then, the vertical rod 402 can be pushed again to move the sealing block 401 down, so that the soil sample can be pushed out from the inside of the sampling tube 3. The staff can then collect the soil sample. After that, the sampling tube 3 is brought into contact with the side rod 601 so that the side rod 601 can limit it. Then, the sleeve 1 is rotated to separate it from the sampling tube 3. Finally, a new sampling tube 3 is taken out and reinstalled on the surface of the sleeve 1. Then, it is inserted into different depths below the ground surface to achieve stratified sampling. And because the samples are collected independently, it is difficult for cross-contamination to occur during the collection process.

[0032] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A soil stratification sampler designed to prevent cross-contamination, comprising a sleeve (1) for soil sampling, characterized in that, A handle (2) is symmetrically fixed to the upper side of the sleeve (1), and a sampling tube (3) is provided at the bottom of the sleeve (1). The sampling tube (3) is provided with a pushing assembly (4) inside. The pushing assembly (4) includes a sealing block (401), a vertical rod (402) and a pressing plate (403). The sealing block (401) slides against the inner wall of the sampling tube (3). The vertical rod (402) is fixed at the top center of the sealing block (401). The top of the vertical rod (402) penetrates the inside of the sleeve (1). The pressing plate (403) is fixed at the top of the vertical rod (402). The surface of the vertical rod (402) is provided with a fixing structure (5). The outer wall of the sleeve (1) is provided with a stepping component (6).

2. The soil stratification sampler for preventing cross-contamination according to claim 1, characterized in that, The bottom of both the sampling tube (3) and the sealing block (401) is a sloping surface structure, and the bottom of the sealing block (401) is in contact with the bottom of the sampling tube (3).

3. The soil stratification sampler for preventing cross-contamination according to claim 1, characterized in that, The top sidewall of the sampling tube (3) is provided with a threaded section, and the sampling tube (3) is threadedly connected to the bottom inner wall of the sleeve (1).

4. A soil stratification sampler for preventing cross-contamination according to claim 1, characterized in that, The fixing structure (5) includes a plug rod (501), a side plate (502) and a tension spring (503). The plug rod (501) is inserted into the interior of the vertical rod (402). The two side plates (502) are slidably sleeved on the surface of the plug rod (501). The bottom of the side plate (502) is fixedly connected to the top outer wall of the sleeve (1). The tension spring (503) is nested and fixed on the surface of the plug rod (501). The end of the tension spring (503) is fixedly connected to the side wall of the side plate (502).

5. A soil stratification sampler for preventing cross-contamination according to claim 1, characterized in that, The pedal component (6) includes a side rod (601), a connecting rod (602) and a pedal (603). The side rod (601) is symmetrically connected to the outer wall of the sleeve (1), the two connecting rods (602) are symmetrically fixed to the side of the side rod (601), and the pedal (603) is fixed to the bottom side of the side rod (601).

6. A soil stratification sampler for preventing cross-contamination according to claim 5, characterized in that, The sidewalls of the sleeve (1) and the sampling tube (3) are symmetrically provided with sliding grooves, and the side rod (601) is slidably connected to the inside of the sliding groove.

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