Rapid detection sampler for soil heavy metal pollution

Abstract

The utility model provides a rapid detection sampler for soil heavy metal pollution, which relates to the technical field of soil detection, and comprises a handle, an automatic sample pushing assembly is arranged in the handle, the automatic sample pushing assembly comprises a notch, the notch is arranged in the handle, and a first spring is arranged in the notch. According to the soil sampling device, before soil is sampled, the grip is pulled upwards, the position of the extrusion plate is fixed through the insertion block, at the moment, the first spring is in a compressed state, the piston is also located at the inner top of the sampling container, then when the soil is sampled, the soil enters the sampling container, and after the sampling container is pulled out from the ground, the soil can enter the sampling container. The sampling device solves the problem that the existing sampling device is easy to cause sampling failure during sampling when the existing sampling device is used for sampling when the existing sampling device is used for sampling, so that a squeezing plate does not compress a first spring any more, and the first spring pushes a piston through a connecting rod to push out soil in a sampling container to complete sampling work.

Description

Technical Field

[0001] This utility model relates to the field of soil testing technology, and in particular to a rapid soil heavy metal pollution detection sampler. Background Technology

[0002] Soil heavy metal pollution testing is an important means of assessing soil environmental quality and ensuring agricultural product safety and ecological security. With rapid industrialization and urbanization, soil heavy metal pollution has become increasingly prominent, making scientific and accurate testing particularly important.

[0003] As disclosed in announcement number CN210533749U, a soil sampling mechanism for environmental soil testing belongs to the field of environmental testing technology. It includes a handle, a push rod, and a soil sampling trough. The push rod is fixedly welded to the bottom of the handle, and the soil sampling trough is fixedly welded to the bottom of the push rod. The soil sampling trough has an internal opening with a movable groove, and a slider is movably mounted within the movable groove. A return spring is mounted at the top of the slider, and a soil sampling container is movably mounted below the slider. A sealing cap is threadedly connected to the soil sampling trough at the bottom of the soil sampling container. This soil sampling mechanism for environmental soil testing can quickly separate the soil sample from the sampler after it has been collected, thus improving the cleanliness of the sampler. The structure is reasonably designed and highly practical.

[0004] This patent improves the cleanliness of the sampler, but in existing samplers, the spring is compressed after soil sampling. When the sampler is pulled upwards, as the spring gradually relaxes, the soil is pushed out of the sampling container before it is completely removed from the ground due to the spring force, leading to sampling failure.

[0005] Therefore, we propose a novel rapid detection sampler for heavy metal pollution in soil. Utility Model Content

[0006] The purpose of this invention is to solve the problem in existing samplers where the spring is compressed after soil sampling. When the sampler is pulled upwards, the spring gradually relaxes, and the soil is pushed out of the sampling container before it is completely removed from the ground due to the spring's elastic force, leading to sampling failure.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a rapid soil heavy metal pollution detection sampler, comprising a handle, an automatic sample pushing component inside the handle, the automatic sample pushing component including a slot, the slot being opened inside the handle, a first spring being disposed inside the slot, a compression plate being connected to the bottom of the first spring, handles being connected to both sides of the compression plate, a connecting rod being fixedly connected to the bottom of the compression plate, a piston being connected to the bottom of the connecting rod, a sampling container being connected to the bottom of the handle, serrations being connected to the bottom of the sampling container, two sets of second springs being disposed inside the front and rear ends of the handle, push rods being inserted into the interior of the two sets of second springs, handles being connected to the front ends of the two sets of push rods, push plates being connected to the rear ends of the two sets of push rods, insert blocks being connected to the surface of the push plates, and slots being opened on the front and rear ends of the compression plate.

[0008] Furthermore, the outer surface of the piston is in contact with the inner wall of the sampling container, and the compression plate and the first spring form an elastic structure, allowing the piston to push the soil out of the sampling container.

[0009] Furthermore, the surface of the insert block is provided with a bevel, and the insert block and the slot form a snap-fit ​​connection, which can fix the extrusion plate.

[0010] Furthermore, the push plate and the second spring form an elastic structure, which facilitates the limiting and fixing of the extrusion plate and realizes the extrusion of the first spring.

[0011] Furthermore, the bottom front and rear ends of the handle are connected to a disassembly and assembly component, which includes a side ear and a sleeve connected to the top of the side ear. The disassembly and assembly component can facilitate the replacement of the sampling container.

[0012] Furthermore, a bolt is inserted into the inside of the sleeve, and a limit block is fixedly connected to the surface of the bolt. The installation of the limit block can prevent the bolt from being lost after disassembly.

[0013] Furthermore, threaded holes are provided at the top of both the front and rear ends of the sampling container, which facilitates the fixing of the sampling container.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. In this utility model, before sampling the soil, the handle is pulled upward to fix the position of the squeezing plate by the insert block. At this time, the first spring is in a compressed state, and the piston is also in the top of the sampling container. When sampling the soil, the soil will enter the sampling container. When the sampling container is pulled out from the ground, the handles can be pulled to both sides to stop the squeezing plate from compressing the first spring. At this time, the first spring will push the piston through the connecting rod to push the soil out of the sampling container, thus completing the sampling work. Existing samplers are prone to sampling failures.

[0016] 2. In this utility model, when the serrations of the sampling container are damaged after long-term use, the sampling container can be disassembled and replaced by rotating the bolts to avoid affecting normal use, thereby improving the maintainability and service life of the sampler. Attached Figure Description

[0017] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a rapid detection sampler for heavy metal pollution in soil.

[0018] Figure 2 This utility model provides a partial cross-sectional structural diagram of a rapid detection sampler for heavy metal pollution in soil.

[0019] Figure 3 This invention provides a first partial cross-sectional exploded structural diagram of a rapid detection sampler for heavy metal pollution in soil.

[0020] Figure 4 This invention presents a second partial cross-sectional exploded structural diagram of a rapid detection sampler for heavy metal pollution in soil.

[0021] Legend: 1. Handle; 2. Automatic sample feeding assembly; 201. Groove; 202. First spring; 203. Extrusion plate; 204. Grip; 205. Connecting rod; 206. Piston; 207. Sampling container; 208. Serrated edge; 209. Slot; 210. Second spring; 211. Push rod; 212. Handle; 213. Push plate; 214. Insert block; 3. Assembly / disassembly assembly; 301. Side lug; 302. Sleeve; 303. Bolt; 304. Limiting block; 305. Threaded hole. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Examples, such as Figure 1 - Figure 3 As shown, this utility model provides a rapid soil heavy metal pollution detection sampler, including a handle 1. An automatic sample pushing component 2 is installed inside the handle 1. The automatic sample pushing component 2 includes a slot 201, which is located inside the handle 1. A first spring 202 is installed inside the slot 201. A compression plate 203 is connected to the bottom of the first spring 202. Handles 204 are connected to both sides of the compression plate 203. A connecting rod 205 is fixedly connected to the bottom of the compression plate 203. The bottom of the connecting rod 205... The handle 1 is connected to a piston 206. The bottom of the handle 1 is connected to a sampling container 207. The bottom of the sampling container 207 is connected to a serration 208. The front and rear ends of the handle 1 are each equipped with two sets of second springs 210. The two sets of second springs 210 are each connected to a push rod 211. The front ends of the two sets of push rods 211 are connected to a handle 212. The rear ends of the two sets of push rods 211 are connected to a push plate 213. The surface of the push plate 213 is connected to an insert block 214. The front and rear ends of the extrusion plate 203 are each provided with a slot 209.

[0025] like Figure 2 As shown, the outer surface of the piston 206 is in contact with the inner wall of the sampling container 207, and the compression plate 203 and the first spring 202 form an elastic structure, allowing the piston 206 to push the soil out of the sampling container 207.

[0026] like Figure 2 and Figure 3 The push plate 213 and the second spring 210 form an elastic structure, which can conveniently limit and fix the extrusion plate 203 to achieve extrusion of the first spring 202.

[0027] like Figure 4 As shown, the bottom front and rear ends of the handle 1 are connected to the disassembly and assembly components 3. The disassembly and assembly components 3 include side ears 301, and the top of the side ears 301 is connected to a sleeve 302. The disassembly and assembly components 3 can facilitate the replacement of the sampling container 207.

[0028] like Figure 1 and Figure 4 As shown, a bolt 303 is inserted into the inside of the sleeve 302, and a limit block 304 is fixedly connected to the surface of the bolt 303. The installation of the limit block 304 can prevent the bolt 303 from being lost after disassembly.

[0029] like Figure 4As shown, the sampling container 207 has threaded holes 305 at the top of both the front and rear ends. The threaded holes 305 can be used to fix the sampling container 207.

[0030] The overall effect of this embodiment is as follows: When sampling and testing the soil, the two sets of handles 204 can be pulled upwards, causing the handles 204 to drive the extrusion plate 203 to extrude the first spring 202, and also causing the connecting rod 205 and piston 206 to move upwards. When the extrusion plate 203 extrudes the oblique position of the insertion block 214, the insertion block 214 will automatically retract. When the extrusion plate 203 moves upwards to the position where the slot 209 matches the insertion block 214, the second spring 210 will push the second spring through its own elasticity. Plate 213 drives the insert block 214 to insert into slot 209, thus fixing the compression plate 203. At this time, the first spring 202 will be in a compressed state, and the piston 206 will also be positioned at the top of the sampling container 207 under the action of the connecting rod 205. Then, the handle 1 can be operated to push the sampling container 207 to sample the soil. After the soil is collected in the sampling container 207, the sampling container 207 at the bottom of the handle 1 can be pulled out of the soil. Then, the two sets of handles 212 can be pulled to both sides at the same time, so that the handles 212 12. The handle 212 can drive the push plate 213 to compress the second spring 210, and drive the insert block 214 to be pulled out of the slot 209. At this time, the first spring 202 will not be compressed by the compression plate 203. The first spring 202 and the compression plate 203 will push the compression plate 203 with their own elasticity, which will drive the connecting rod 205 and the piston 206 to move downward, so that the piston 206 can push out the soil in the sampling container 207, completing the sampling work. This avoids the problem of sampling failure that is common in existing samplers. By rotating the bolt 303 in the reverse direction, the bolt 303 can be removed from the threaded hole 305, and then a new sampling container 207 can be replaced. At the same time, the connecting rod 205 is fixed to the bottom of the piston 206 with screws. When replacing the sampling container 207, the screws at the bottom of the piston 206 can be removed to disassemble the piston 206. In this way, the sampling container 207 can be disassembled and replaced by rotating the bolt 303, so as not to affect normal use and improve the maintainability and service life of the sampler.

[0031] Working principle: Before sampling the soil, pull the handle 204 upwards to fix the position of the squeezing plate 203 through the insert block 214. At this time, the first spring 202 is compressed, and the piston 206 is also at the top of the sampling container 207. When sampling the soil, the soil will enter the sampling container 207. After the sampling container 207 is pulled out from the ground, the handles 212 can be pulled to both sides to stop the squeezing plate 203 from compressing the first spring 202. At this time, the first spring 202 will push the piston 206 through the connecting rod 205 to push the soil out of the sampling container 207, completing the sampling work. Existing samplers are prone to sampling failure. When the serrations 208 of the sampling container 207 are damaged after long-term use, the sampling container 207 can be disassembled and replaced by rotating the bolt 303 to avoid affecting normal use and improve the maintainability and service life of the sampler.

[0032] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A soil heavy metal pollution rapid detection sampler comprising a handle (1), characterized in that: The handle (1) is equipped with an automatic sample feeding assembly (2); The automatic sample feeding assembly (2) includes a slot (201) located inside the handle (1). A first spring (202) is installed inside the slot (201). A compression plate (203) is connected to the bottom of the first spring (202). Handles (204) are connected to both sides of the compression plate (203). A connecting rod (205) is fixedly connected to the bottom of the compression plate (203). A piston (206) is connected to the bottom of the connecting rod (205). A sampling container (2) is connected to the bottom of the handle (1). 07), the bottom of the sampling container (207) is connected to a serration (208), the front and rear ends of the handle (1) are each provided with two sets of second springs (210), the two sets of second springs (210) are each inserted with a push rod (211), the front ends of the two sets of push rods (211) are connected to a handle (212), the rear ends of the two sets of push rods (211) are connected to a push plate (213), the surface of the push plate (213) is connected to an insert (214), and the front and rear ends of the extrusion plate (203) are each provided with a slot (209).

2. The sampler according to claim 1, characterized in that: The outer surface of the piston (206) is in contact with the inner wall of the sampling container (207), and the extrusion plate (203) and the first spring (202) form an elastic structure.

3. The sampler according to claim 2, characterized in that: The surface of the insert (214) is provided with a bevel, and the insert (214) and the slot (209) are connected by a snap-fit.

4. The sampler according to claim 3, characterized in that: The push plate (213) and the second spring (210) form an elastic structure.

5. The sampler according to claim 1, characterized in that: The handle (1) has a disassembly assembly (3) connected to both the front and rear ends of its bottom. The disassembly assembly (3) includes a side ear (301) and a sleeve (302) is connected to the top of the side ear (301).

6. The rapid detection sampler for heavy metal contaminated soil according to claim 5, characterized in that: A bolt (303) is inserted into the inside of the sleeve (302), and a limit block (304) is fixedly connected to the surface of the bolt (303).

7. The rapid detection sampler for heavy metal contaminated soil according to claim 6, characterized in that: The sampling container (207) has threaded holes (305) at the top of both the front and rear ends.

Images