Self-cleaning type cultivated land surface sampler

Abstract

The utility model relates to the technical field of cultivated land surface layer sampling equipment, and discloses a self-cleaning type cultivated land surface layer sampler which comprises a sleeve rod and a sampling barrel, an inner rod is inserted into the sleeve rod in a sliding mode, and a locking mechanism used for locking the sleeve rod and the inner rod is arranged on the outer wall of the sleeve rod. One side of the bottom end of the sleeve rod is provided with a sampling barrel for sampling the surface layer of the cultivated land, and the surface of the sampling barrel is provided with a cleaning mechanism for cleaning soil on the surface of the sampling barrel. The locking mechanism is arranged to unlock or lock the sleeve rod and the inner rod, so that the sleeve rod and the inner rod can be conveniently adjusted according to the height of a sampler, the sizes of the sleeve rod and the inner rod can be reduced, the sampler can be conveniently carried by the sampler, and the sampler is inserted into the surface layer of a cultivated land through the sampling barrel to sample and take soil; sample soil in the sampling barrel is ejected out through the ejection mechanism, soil attached to the surface of the sampling barrel is cleaned through the cleaning mechanism, and the cleaning function of an existing cultivated land surface sampler is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of farmland surface sampling equipment, specifically a self-cleaning farmland surface sampler. Background Technology

[0002] In agricultural research, soil testing, and other related fields, topsoil samplers play an irreplaceable role in agricultural production and land management. Samplers help obtain representative soil samples, thus providing basic data for the scientific assessment of arable land quality. By analyzing the physical and chemical properties of the soil, we can understand the soil fertility status and pollution level, providing a basis for soil improvement and management.

[0003] Existing farmland surface samplers leave a large amount of soil residue on their sampling components after each sampling. This residue can contaminate subsequent samplings, leading to inaccurate results. Existing farmland surface samplers do not have a cleaning function, and most existing cleaning methods require manual cleaning with tools. Manual cleaning with tools is cumbersome and inefficient, increasing the workload of staff. Utility Model Content

[0004] The purpose of this invention is to provide a self-cleaning surface sampler for cultivated land to solve the problem mentioned in the background art, which is caused by the cumbersome operation and low efficiency due to manual cleaning with tools.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-cleaning farmland surface sampler, comprising a sleeve rod and a sampling cylinder, wherein an inner rod is slidably inserted into the inside of the sleeve rod, and a locking mechanism for locking the sleeve rod and the inner rod is provided on the outer wall of the sleeve rod, and a sampling cylinder for sampling farmland surface is provided on one side of the bottom end of the sleeve rod, and an ejection mechanism for ejecting the sample soil is provided inside the sampling cylinder, and a cleaning mechanism for cleaning the soil on the surface of the sampling cylinder is provided on the surface of the sampling cylinder.

[0006] As a further preferred embodiment of this technical solution, a handle is fixedly connected to the top of the inner rod, the surface of the handle is provided with anti-slip protrusions, and the surface of the inner rod is provided with equidistant insertion holes.

[0007] As a further preferred embodiment of this technical solution, a pedal is fixedly connected to the bottom end of the sleeve rod, an mounting sleeve is fixedly installed on one side of the outer wall of the pedal, and a connecting plate is fixedly connected to the surface of the sleeve rod near the upper side of the mounting sleeve.

[0008] As a further preferred embodiment of this technical solution, the locking mechanism includes a push block, the inner surface of which is mounted on the top of the outer wall of the sleeve rod via a hinge, one end of the inner surface of the push block is fixedly connected to a plug rod, the end of the plug rod away from the push block is inserted into the interior of one set of plug holes, and the end of the push block away from the plug rod is fixedly connected to a stop spring, the end of the stop spring away from the push block is fixedly connected to the outer wall of the sleeve rod.

[0009] As a further preferred embodiment of this technical solution, the ejection mechanism includes an ejection plate, the surface of which is slidably mounted inside the sampling cylinder, and a sliding rod is fixedly mounted on the top of the ejection plate, the surface of which is slidably inserted into the interior of the connecting plate.

[0010] As a further preferred embodiment of this technical solution, a pressing plate is fixedly installed at the top of the slide rod, and a return spring is fitted on the upper surface of the slide rod near the connecting plate. The upper and lower ends of the return spring are fixedly connected to the bottom end of the pressing plate and the top end of the connecting plate, respectively.

[0011] As a further preferred embodiment of this technical solution, the cleaning mechanism includes a connecting frame, the two sides of the top of the connecting frame are fixedly connected to the two sides of the bottom of the pressing plate, a cleaning brush is fixedly connected to the bottom of the connecting frame, and a cleaning scraper is fixedly connected to the bottom of the cleaning brush through a connecting rod. The inner surfaces of the cleaning scraper and the cleaning brush are slidably fitted onto the outer surface of the sampling cylinder.

[0012] This utility model provides a self-cleaning farmland surface sampler, which has the following beneficial effects:

[0013] This invention features a locking mechanism to release or lock the sleeve rod and inner rod, allowing for easy adjustment of the sleeve rod and inner rod according to the height of the sampling personnel. This also reduces the volume of the sleeve rod and inner rod, making it easier for sampling personnel to carry the sampler. The sampler inserts the sampling tube into the surface layer of the cultivated land to collect soil samples. A push-out mechanism ejects the soil sample from inside the sampling tube, and a cleaning mechanism cleans the surface of the sampling tube. This invention achieves a cleaning function for existing cultivated land surface samplers, solving the problem of cumbersome and inefficient manual cleaning using tools, and reducing the labor intensity of workers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the sleeve structure of this utility model;

[0017] Figure 4This utility model Figure 2 A schematic diagram of the enlarged structure at point A in the middle;

[0018] Figure 5 This is an exploded view of the pusher mechanism structure of this utility model.

[0019] In the diagram: 1. Sleeve rod; 101. Inner rod; 102. Handle; 103. Insertion hole; 104. Pedal; 105. Mounting sleeve; 106. Connecting plate; 2. Locking mechanism; 201. Press block; 202. Insertion rod; 203. Abutment spring; 3. Sampling cylinder; 4. Ejection mechanism; 401. Ejection plate; 402. Slide rod; 403. Press plate; 404. Return spring; 5. Cleaning mechanism; 501. Connecting frame; 502. Cleaning brush; 503. Cleaning scraper. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1 to 5 As shown, in this embodiment, a self-cleaning surface sampler for cultivated land includes a sleeve rod 1 and a sampling cylinder 3. An inner rod 101 is slidably inserted into the inside of the sleeve rod 1. A handle 102 is fixedly connected to the top of the inner rod 101. The surface of the handle 102 is provided with anti-slip protrusions. Insertion holes 103 are equidistantly opened on the surface of the inner rod 101. A pedal 104 is fixedly connected to the bottom of the sleeve rod 1. An installation sleeve 105 is fixedly installed on one side of the outer wall of the pedal 104. A connecting plate 106 is fixedly connected to the surface of the sleeve rod 1 near the upper side of the installation sleeve 105. The outer wall of the sleeve rod 1 is provided with a locking mechanism for the sleeve rod 1. The locking mechanism 2 of the inner rod 101 includes a push block 201. The inner surface of the push block 201 is mounted on the top of the outer wall of the sleeve rod 1 via a hinge. One end of the inner surface of the push block 201 is fixedly connected to an insertion rod 202. The end of the insertion rod 202 away from the push block 201 is inserted into the interior of one set of insertion holes 103. The end of the push block 201 away from the insertion rod 202 is fixedly connected to an abutment spring 203. The end of the abutment spring 203 away from the push block 201 is fixedly connected to the outer wall of the sleeve rod 1. A sampling tube 3 for sampling the surface layer of cultivated land is provided on one side of the bottom end of the sleeve rod 1.

[0022] By pressing the button 201, the sampling personnel disengage the insertion rod 202 from one set of insertion holes 103. Then, the sampling personnel pull the inner rod 101 while holding the handle 102, causing the inner rod 101 to extend inside the sleeve rod 1. When the inner rod 101 extends to a suitable height, the sampling personnel release the button 201, causing the insertion rod 202 to enter the other set of insertion holes 103, thus fixing the inner rod 101 to the sleeve rod 1. This allows the sampling personnel to adjust the height of the sleeve rod 1 and the inner rod 101 according to their own height. After the height of the sleeve rod 1 and the inner rod 101 is adjusted, the sampling personnel hold the handle 102 and insert the sampling tube 3 above the surface layer of the cultivated land. Then, the sampling personnel press down on the pedal 104. The downward pressing force of the pedal 104 causes the bottom of the sampling tube 3 to enter the interior of the surface layer of the cultivated land for sampling, facilitating the entry of soil from the surface layer of the cultivated land into the sampling tube 3.

[0023] like Figure 1 , Figure 2 and Figure 5 As shown, the sampling cylinder 3 is equipped with an ejection mechanism 4 for ejecting soil samples. The ejection mechanism 4 includes an ejection plate 401, the surface of which is slidably installed inside the sampling cylinder 3. A slide rod 402 is fixedly installed at the top of the ejection plate 401. The surface of the slide rod 402 is slidably inserted into the interior of the connecting plate 106. A pressing plate 403 is fixedly installed at the top of the slide rod 402. A return spring 404 is fitted on the surface of the slide rod 402 near the upper side of the connecting plate 106. The upper and lower ends of the return spring 404 are fixedly connected to the bottom end of the pressing plate 403 and the top end of the connecting plate 106, respectively.

[0024] When the sampling tube 3 is filled with soil, the sampling personnel use the handle 102 to pull the sampling tube 3 out of the surface layer of the cultivated land. When it is necessary to remove the soil sample from the sampling tube 3, the sampling personnel step on the pressing plate 403. The pressing plate 403, under force, drives the sliding rod 402 to slide downward inside the connecting plate 106. The sliding rod 402 drives the ejector plate 401 to move downward inside the sampling tube 3. The downward-moving ejector plate 401 pushes out the soil sample from the sampling tube 3, so that the ejected soil sample will fall into the collection device carried by the sampling personnel. When the pressing plate 403 is no longer under force, the reset spring 404 resets the pressing plate 403 to move upward inside the sampling tube 3. The upward movement of the pressing plate 403 drives the sliding rod 402 and the ejector plate 401 to move upward to reset, making it convenient for the next sampling.

[0025] like Figure 1 , Figure 2 and Figure 5As shown, the surface of the sampling cylinder 3 is provided with a cleaning mechanism 5 for cleaning the dirt on the surface of the sampling cylinder 3. The cleaning mechanism 5 includes a connecting frame 501. The two sides of the top of the connecting frame 501 are fixedly connected to the two sides of the bottom of the pressing plate 403, respectively. A cleaning brush 502 is fixedly connected to the bottom of the connecting frame 501. A cleaning scraper 503 is fixedly connected to the bottom of the cleaning brush 502 through a connecting rod. The inner surfaces of the cleaning scraper 503 and the cleaning brush 502 are slidably fitted on the outer surface of the sampling cylinder 3.

[0026] When it is necessary to clean the soil adhering to the outer wall of the sampling cylinder 3, the sampling personnel hold or step on the pressing plate 403. The pressing plate 403, under the force, drives the cleaning brush 502 and the cleaning scraper 503 to move on the outer surface of the sampling cylinder 3 through the connecting frame 501. The moving cleaning scraper 503 first scrapes off the soil adhering to the outer surface of the sampling cylinder 3. Then, the moving cleaning brush 502 scrubs the remaining soil on the outer surface of the sampling cylinder 3. The cooperation of the cleaning scraper 503 and the cleaning brush 502 can clean the remaining soil on the outer wall of the sampling cylinder 3, so as to avoid the remaining soil on the outer wall of the sampling cylinder 3 from affecting the sampling effect of the next sampling.

[0027] This utility model provides a self-cleaning farmland surface sampler. Its working principle is as follows: When sampling the farmland surface, firstly, the sampling personnel press the button 201, causing the insertion rod 202 to disengage from one set of insertion holes 103. Then, the sampling personnel hold the handle 102 and pull the inner rod 101, causing it to extend out of the sleeve 1. When the inner rod 101 extends to a suitable height, the sampling personnel release the button 201, causing the insertion rod 202 to enter another set of insertion holes 103. Inside, the inner rod 101 is fixed to the sleeve rod 1, so that the sampling personnel can adjust the height of the sleeve rod 1 and the inner rod 101 according to their own height. After the height of the sleeve rod 1 and the inner rod 101 is adjusted, the sampling personnel hold the handle 102 and insert the sampling tube 3 into the top of the cultivated land surface. Then the sampling personnel step on the pedal 104 and press down. The downward pressing force of the pedal 104 causes the bottom of the sampling tube 3 to enter the interior of the cultivated land surface for sampling, which facilitates the soil inside the cultivated land surface to enter the interior of the sampling tube 3.

[0028] When the sampling tube 3 is full of soil, the sampling personnel use the handle 102 to pull the sampling tube 3 out of the surface layer of the cultivated land. When it is necessary to remove the soil sample from the sampling tube 3, the sampling personnel step on the pressing plate 403. The pressing plate 403 is subjected to force, which causes the sliding rod 402 to slide downward inside the connecting plate 106. The sliding rod 402 drives the ejector plate 401 to move downward inside the sampling tube 3. The downward-moving ejector plate 401 pushes out the soil sample from the sampling tube 3, so that the ejected soil sample will fall into the collection device carried by the sampling personnel. When the pressing plate 403 is not subjected to force, the reset spring 404 resets the pressing plate 403 to move upward inside the sampling tube 3. The upward movement of the pressing plate 403 drives the sliding rod 402 and the ejector plate 401 to move upward to reset, making it convenient for the next sampling.

[0029] When it is necessary to clean the soil adhering to the outer wall of the sampling cylinder 3, the sampling personnel hold or step on the pressing plate 403. The pressing plate 403, under the force, drives the cleaning brush 502 and the cleaning scraper 503 to move on the outer surface of the sampling cylinder 3 through the connecting frame 501. The moving cleaning scraper 503 first scrapes off the soil adhering to the outer surface of the sampling cylinder 3. Then, the moving cleaning brush 502 scrubs the remaining soil on the outer surface of the sampling cylinder 3. The cooperation of the cleaning scraper 503 and the cleaning brush 502 can clean the remaining soil on the outer wall of the sampling cylinder 3, so as to avoid the remaining soil on the outer wall of the sampling cylinder 3 from affecting the sampling effect of the next sampling.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning surface soil sampler, comprising a sleeve (1) and a sampling tube (3), characterized in that: The sleeve rod (1) has an inner rod (101) slidably inserted inside. The outer wall of the sleeve rod (1) is provided with a locking mechanism (2) for locking the sleeve rod (1) and the inner rod (101). A sampling tube (3) for sampling the surface layer of cultivated land is provided on one side of the bottom end of the sleeve rod (1). The inside of the sampling tube (3) is provided with a push-out mechanism (4) for pushing out the sample soil. The surface of the sampling tube (3) is provided with a cleaning mechanism (5) for cleaning the soil on the surface of the sampling tube (3).

2. The self-cleaning farmland surface sampler according to claim 1, characterized in that: The top end of the inner rod (101) is fixedly connected to a handle (102), the surface of the handle (102) is provided with anti-slip protrusions, and the surface of the inner rod (101) is provided with equidistant insertion holes (103).

3. The self-cleaning farmland surface sampler according to claim 1, characterized in that: The bottom end of the sleeve rod (1) is fixedly connected to a pedal (104), and an installation sleeve (105) is fixedly installed on one side of the outer wall of the pedal (104). A connecting plate (106) is fixedly connected to the surface of the sleeve rod (1) near the upper side of the installation sleeve (105).

4. A self-cleaning farmland surface sampler according to claim 1, characterized in that: The locking mechanism (2) includes a push block (201). The inner surface of the push block (201) is mounted on the top of the outer wall of the sleeve rod (1) via a hinge. One end of the inner surface of the push block (201) is fixedly connected to a plug rod (202). The end of the plug rod (202) away from the push block (201) is inserted into the interior of one set of plug holes (103). The end of the push block (201) away from the plug rod (202) is fixedly connected to a stop spring (203). The end of the stop spring (203) away from the push block (201) is fixedly connected to the outer wall of the sleeve rod (1).

5. A self-cleaning surface sampler for cultivated land according to claim 1, characterized in that: The ejection mechanism (4) includes an ejection plate (401), the surface of which is slidably mounted inside the sampling cylinder (3), and a slide rod (402) is fixedly mounted on the top of the ejection plate (401), the surface of which is slidably inserted into the interior of the connecting plate (106).

6. A self-cleaning surface sampler for cultivated land according to claim 5, characterized in that: A push plate (403) is fixedly installed at the top of the slide rod (402). A return spring (404) is fitted on the surface of the slide rod (402) near the upper side of the connecting plate (106). The upper and lower ends of the return spring (404) are fixedly connected to the bottom end of the push plate (403) and the top end of the connecting plate (106), respectively.

7. A self-cleaning farmland surface sampler according to claim 1, characterized in that: The cleaning mechanism (5) includes a connecting frame (501). The two sides of the top of the connecting frame (501) are fixedly connected to the two sides of the bottom of the pressing plate (403). A cleaning brush (502) is fixedly connected to the bottom of the connecting frame (501). A cleaning scraper (503) is fixedly connected to the bottom of the cleaning brush (502) through a connecting rod. The inner surfaces of the cleaning scraper (503) and the cleaning brush (502) are slidably fitted on the outer surface of the sampling cylinder (3).

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