A soil sampling device for forestry ecological soil detection

Abstract

The invention relates to the technical field of soil sampling, and in particular to a soil sampling device for forestry ecological soil detection, comprising a base, a cylinder being slidably connected inside the base, a first pressing mechanism being arranged at the upper end of the cylinder, a second pressing mechanism being arranged at one end of the upper end of the cylinder close to the first pressing mechanism, a soil sampling mechanism being arranged inside the cylinder, and a slag discharge mechanism being arranged at the lower end of the cylinder close to the soil sampling mechanism, wherein liquid soil of a certain depth can be collected by a provided tank body, and a cover plate can be timely closed on the upper end of the collected soil after collection, a cone head provided at the notch at the lower end of two arc-shaped plates can serve as a pointed drill bit for penetrating into the soil, and can also lock the two arc-shaped plates in the process of penetrating into the soil, and can also keep the cone head away from the notch when the cylinder moves out of the soil, thereby facilitating the discharge of the liquid soil entering the cylinder from the notch during the soil sampling process.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling, in particular to a soil sampling device for forestry ecological soil detection. Background Art

[0002] The soil sampling device for forestry ecological soil testing is an indispensable tool in forestry ecological research. It can help researchers obtain representative soil samples and then analyze the physical, chemical and biological properties of the soil. The soil sampling device for forestry ecological soil testing plays an important role in forestry ecological research. With the continuous advancement and innovation of technology, the soil sampling device in the future will be more intelligent, automated, multifunctional and portable, providing more accurate, efficient and convenient sampling tools for forestry ecological research.

[0003] Existing soil sampling devices for forestry ecological soil testing are difficult to extract fluid soil, such as loose soil, mud, silt, etc. Existing devices usually use a sleeve to penetrate the soil for soil sampling, and the fluid soil enters the sleeve and slides out from the bottom when the sleeve is lifted. In the process of soil sampling, the fluid soil is relatively moist and the silt is mixed with more water. Fluid soil such as silt contains more water. The water mixed with more water in the soil needs to be separated. Excessive water may cause the nutrients in the soil to be diluted, resulting in low test results. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a soil sampling device for forestry ecological soil detection.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a soil sampling device for forestry ecological soil detection, comprising a base, a cylinder slidably connected inside the base, a first pressing mechanism arranged at the upper end of the cylinder, a second pressing mechanism arranged at one end of the upper end of the cylinder close to the first pressing mechanism, a soil sampling mechanism arranged inside the cylinder, and a slag discharge mechanism arranged at the lower end of the cylinder close to the soil sampling mechanism.

[0006] Preferably, a fixing ring is fixedly connected to the inner surface of the cylinder, a rotating pin is rotatably connected to the lower end of the cylinder via a torsion spring, an arc plate is fixedly connected to the lower end of the rotating pin, and a notch is provided at the lower end of the arc plate.

[0007] Preferably, the first pressing mechanism comprises a connecting block, the lower end of the connecting block is fixedly connected to the cylinder, the upper end of the connecting block is fixedly connected to a handle, and the center of the handle is penetrated by a first sleeve.

[0008] Preferably, the first pressing mechanism also includes a first fixed block, the first sleeve outer surface is fixedly connected to the first fixed block, the first fixed block has a first opening inside, the handle has a first sliding rod running through it, and the lower end of the first sliding rod is fixedly connected to the base.

[0009] Preferably, the second pressing mechanism includes a second sliding rod, which is disposed inside the first sleeve and slidably connected thereto, the upper end of the second sliding rod is fixedly connected to a handle, and the side wall of the second sliding rod is fixedly connected to a second fixed block.

[0010] Preferably, the second pressing mechanism also includes a slide rail, one end of the second fixed block is fixedly connected to the slide rail, a hollow groove is opened inside the slide rail, a third sliding rod is slidably connected inside the hollow groove, a second sleeve is fixedly connected to the side wall of the slide rail, and the third sliding rod and the second sleeve are elastically connected by a spring.

[0011] Preferably, the soil-taking mechanism includes a slider, one end of which is slidably connected to a slide rail, the lower end of the slider is fixedly connected to a tank body, a second opening is provided on the surface of the tank body, the lower end of the tank body is fixedly connected to a conical barrel, the upper end of the tank body is fixedly connected to a third sleeve, and the interior of the third sleeve is elastically connected to a fourth sliding rod via a spring.

[0012] Preferably, the soil-taking mechanism also includes a first baffle, the upper end of the fourth sliding rod is fixedly connected to the first baffle, the fourth sliding rod passes through the top of the tank body and is slidably connected thereto, the lower end of the fourth sliding rod is fixedly connected to a cover plate, and a scraper is fixedly connected to the outer surface of the tank body near the second opening corner.

[0013] Preferably, the slag discharge mechanism includes a fifth sliding rod, the upper end of the fifth sliding rod is slidably connected to the inner surface of the second sliding rod, the lower end of the fifth sliding rod is fixedly connected to a cone head, the surface of the cone head is fixedly connected to barbs, and the surface of the fifth sliding rod is fixedly connected to a second baffle.

[0014] Beneficial effects of the present invention:

[0015] (1) The soil sampling device for forestry ecological soil detection described in the present invention adopts a structure in which two symmetrically arranged arc plates are elastically connected to each other through a rotating pin and a torsion spring at the lower end of a cylinder. Initially, the two arc plates are tightly fitted together under the elastic force of the torsion spring. When the arc plates penetrate downward into the soil, they cooperate with the cone head. The cone head is tightly fitted in the groove under the reverse force of the soil. At the same time, the barbs arranged on both sides of the cone head can make the arc plates fit tightly together to prevent the arc plates from spreading to both sides when penetrating into the soil.

[0016] (2) The soil sampling device for forestry ecological soil detection described in the present invention can collect liquid soil of a certain depth in forestry ecology through the set tank body. At the same time, the cover plate can be promptly closed on the upper end of the collected soil after collection, and the collected soil is promptly sealed during the underground collection process to avoid being polluted by the external environment and affecting the detection results. At the same time, when the tank body is lifted to the uppermost end after collection, the slider of the slide rail is unlocked and can be directly slid outward to be taken out and replaced with a new tank body to be sampled. When the handle is moved downward, the third slide rod is reset to lock the slider in the slide rail. Locking the slider in the slide rail can improve the stability of the tank body in taking liquid soil, and prevent the tank body from sliding and falling into the soil during the soil sampling process. At the same time, such a locking structure can also facilitate and quickly replace the tank body, thereby improving the collection efficiency of liquid soil.

[0017] (3) The soil sampling device for forestry ecological soil detection described in the present invention can play a guiding role through the scraper arranged on the outer surface of the tank body, guiding the surrounding soil into the tank body, so that the soil collected in the tank body is full enough to avoid the existence of many gaps, which can promote better soil sampling of the tank body. The lower end of the second opening in the tank body is a liquid soil chamber for storing samples, and the conical barrel at the lower end of the tank body is used to store water in the liquid soil. A filter net is arranged between the tank body and the conical barrel at the lower end to separate the solid and liquid in the soil, thereby further improving the accuracy of the liquid soil in the forestry ecology.

[0018] (4) The soil-taking device for forestry ecological soil detection described in the present invention can act as a pointed drill bit that penetrates into the soil by means of a cone head arranged at the lower end notch of the two arc-shaped plates. At the same time, the two arc-shaped plates can be locked during the process of penetrating into the soil to prevent the two arc-shaped plates from unfolding during the process of penetrating into the soil and descending. At the same time, when the cylinder moves out of the soil, the cone head will be away from the notch, thereby facilitating the discharge of the fluid soil that enters the cylinder from the notch during the soil-taking process. The cone head is rhombus-shaped, so the fluid soil discharged from the notch will not accumulate on the upper end of the cone head. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0021] Figure 2 It is a schematic diagram of the connection structure between the base and the cylinder;

[0022] Figure 3 is a schematic diagram of the curved plate structure;

[0023] Figure 4 It is a schematic diagram of the fixed ring structure;

[0024] Figure 5 is a schematic diagram of the rotating pin structure;

[0025] Figure 6 is a schematic diagram of the connection structure between the second sliding rod and the second fixed block;

[0026] Figure 7 is a schematic diagram of the second opening structure;

[0027] Figure 8 is a schematic diagram of the connection structure between the second fixed block and the slide rail;

[0028] Fig. 9 It is a schematic diagram of the connection structure between the fifth sliding rod and the cone head.

[0029] In the figure: 100, base; 200, cylinder; 2001, fixing ring; 201, rotating pin; 202, arc plate; 2021, notch; 300, first pressing mechanism; 301, connecting block; 302, handle; 303, first sleeve; 304, first fixing block; 3041, first opening; 305, first sliding rod; 400, second pressing mechanism; 401, second sliding rod; 402, turning handle; 403, second fixing block; 404 , slide rail; 4041, hollow groove; 405, third sliding rod; 406, second sleeve; 500, soil taking mechanism; 501, slider; 502, tank body; 5021, second opening; 503, conical barrel; 504, third sleeve; 505, fourth sliding rod; 506, first baffle; 507, cover plate; 508, scraper; 600, slag discharge mechanism; 601, fifth sliding rod; 602, cone head; 603, barb; 604, second baffle. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] like Figure 1-Figure 9As shown, a soil collecting device for forestry ecological soil detection according to the present invention comprises a base 100, wherein a cylinder 200 is slidably connected inside the base 100, and is characterized in that: a first pressing mechanism 300 is arranged at the upper end of the cylinder 200, a second pressing mechanism 400 is arranged at one end of the upper end of the cylinder 200 close to the first pressing mechanism 300, a soil collecting mechanism 500 is arranged inside the cylinder 200, and a slag discharge mechanism 600 is arranged at the lower end of the cylinder 200 close to the soil collecting mechanism 500; the tank body 502 can be used to collect the soil The liquid soil of a certain depth can be collected, and the cover plate 507 can be promptly closed on the upper end of the collected soil after collection. The cone head 602 arranged at the notch 2021 at the lower end of the two arc-shaped plates 202 can serve as a sharp drill bit for penetrating into the soil, and can also lock the two arc-shaped plates 202 during the process of penetrating into the soil. At the same time, when the cylinder 200 moves out of the soil, the cone head 602 will be away from the notch 2021, thereby promoting the discharge of the liquid soil entering the cylinder 200 from the notch 2021 during the soil taking process.

[0032] Preferably, a fixing ring 2001 is fixedly connected to the inner surface of the cylinder 200 , a rotating pin 201 is rotatably connected to the lower end of the cylinder 200 via a torsion spring, an arc plate 202 is fixedly connected to the lower end of the rotating pin 201 , and a notch 2021 is provided at the lower end of the arc plate 202 .

[0033] Preferably, the first pressing mechanism 300 includes a connecting block 301, the lower end of the connecting block 301 is fixedly connected to the cylinder 200, the upper end of the connecting block 301 is fixedly connected to a handle 302, the center of the handle 302 is penetrated by a first sleeve 303, the outer surface of the first sleeve 303 is fixedly connected to a first fixing block 304, the first fixing block 304 has a first opening 3041, the handle 302 is penetrated by a first sliding rod 305, and the lower end of the first sliding rod 305 is fixedly connected to the base 100; first The soil sampling device is placed on the upper end of the soil in the area to be sampled. The base 100 plays the role of supporting the upper surface of the soil to be tested. The handle 302 is pressed downward, and the handle 302 is pressed downward to drive the connecting block 301 to move downward. The connecting block 301 moves downward to drive the cylinder 200 to move downward. The cylinder 200 moves downward to drive the rotating pin 201 to move downward. The rotating pin 201 moves downward to drive the arc plate 202 to move downward. The lower end of the cylinder 200 is elastically connected to the torsion spring through the rotating pin 201. There are two symmetrically arranged arc plates 20 2. Initially, the two arc plates 202 are tightly fitted together under the action of the torsion spring elastic force. A notch 2021 is provided at the lower end of the arc plate 202. The notch 2021 at the lower end of the arc plate 202 can be used to discharge the excess soil in the cylinder 200. When the arc plate 202 is inserted into the soil, it will cooperate with the cone head 602. The cone head 602 is tightly fitted at the notch under the reverse force of the soil. The barbs 603 provided on both sides of the cone head 602 can tightly fit the arc plates 202 together to prevent the arc plates 202 from expanding to both sides when being inserted into the soil. Open; the structure is set up at the lower end of the cylinder 200, and two symmetrically arranged arc plates 202 are elastically connected to the torsion spring through a rotating pin 201. Initially, the two arc plates 202 are tightly fitted together under the elastic force of the torsion spring. When the arc plates 202 are inserted into the soil downward, they will cooperate with the cone head 602. The cone head 602 is tightly fitted in the groove under the reverse force of the soil. At the same time, the barbs 603 set on both sides of the cone head 602 can make the arc plates 202 fit tightly together to prevent the arc plates 202 from spreading to both sides during the process of being inserted into the soil.

[0034] Preferably, the second pressing mechanism 400 includes a second sliding rod 401, which is disposed inside the first sleeve 303 and slidably connected thereto, a turning handle 402 is fixedly connected to the upper end of the second sliding rod 401, a second fixing block 403 is fixedly connected to the side wall of the second sliding rod 401, a sliding rail 404 is fixedly connected to one end of the second fixing block 403, a hollow groove 4041 is provided inside the sliding rail 404, a third sliding rod 405 is slidably connected inside the hollow groove 4041, a second sleeve 406 is fixedly connected to the side wall of the sliding rail 404, and the third sliding rod 405 and the second sleeve 406 are elastically connected via a spring;When the arc plate 202 moves downward to a specified depth, the handle 402 is pressed downward, and the downward movement of the handle 402 drives the second sliding rod 401 to move downward, and the downward movement of the second sliding rod 401 drives the second fixing block 403 to move downward, and the downward movement of the second fixing block 403 drives the slide rail 404 to move downward, and the downward movement of the slide rail 404 drives the slider 501 to move downward, and the downward movement of the slider 501 drives the tank body 502 to move downward, and the downward movement of the tank body 502 drives the conical barrel 503 to move downward, and the lower end of the conical barrel 503 is conical and can be easily inserted into the soil. When the tank body 502 moves downward, the third sleeve 504 moves downward, and the downward movement of the third sleeve 504 will drive the fourth sliding rod 505 to move downward, and the downward movement of the fourth sliding rod 505 will drive the first baffle 506 to move downward, and the downward movement of the first baffle 506 will be blocked by the fixing ring 2001 in the cylinder 200, and the tank body 502 continues to move downward, and the first baffle 506 at its upper end stays and fits on the upper surface of the fixing ring 2001, and the tank body 502 continues to move downward, which will push the two arc plates 202 outward. At the same time, due to the first baffle 50 The tank body 502 that stays on the upper surface of the fixing ring 2001 continues to move downward, and relative displacement will occur. The first baffle plate 506 does not move, and the tank body 502 continues to move downward, and the cover plate 507 moves to fit the inner upper surface of the tank body 502. At this time, the soil collecting chamber in the tank body 502 will be opened. When the cover plate 507 moves to fit the inner upper surface of the tank body 502, the tank body 502 just moves to the lower end of the curved plate 202. At this time, the rotating handle 402 will drive the tank body 502 to rotate around the second sliding rod 401, and the second opening 5021 of the tank body 502 is in the direction of rotation. In the forward direction, the rotation of the tank body 502 will load the liquid soil of the specified depth into the chamber for collecting soil inside the tank body 502. After the collection is completed, the handle will be rotated back and lifted up to enter the interior of the cylinder 200, so that the tank body 502 will enter the interior of the cylinder 200. At this time, the tank body 502 and the first baffle 506 will move upward away from the fixing ring 2001. At this time, the spring inside the third sleeve 504 will be reset to push the cover plate 507 downward to cover the upper end of the collected soil, and the collected soil will be sealed in time during the underground collection process to avoid being polluted by the external environment and affecting the detection results;The tank body 502 is provided to collect liquid soil at a certain depth in the forestry ecology, and the cover plate 507 can be promptly closed on the upper end of the collected soil after collection, so that the collected soil is sealed in time during the underground collection process to prevent the detection results from being polluted by the external environment. At the same time, after collection, the tank body 502 is lifted to the uppermost end and the first baffle plate 506 passes through the first opening 3041 on the first fixed block 304. At this time, the third sliding rod 405 is squeezed by the first fixed block 304 and compresses the spring in the second sleeve 406 to move downward. The downward movement of the third sliding rod 405 will move away from the slide groove of the slide rail 404. At this time, the slider 501 of the slide rail 404 is unlocked and can be directly slid outward for removal and replacement. The new tank 502 to be sampled is aligned with the slide groove of the slide rail 404 and pushed into the second fixed block 403. When the handle 402 is moved downward, the third sliding rod 405 will be away from the lower end of the first fixed block 304. At this time, the spring inside the second sleeve 406 will reset and drive the third sliding rod 405 to reset. The reset of the third sliding rod 405 will lock the slider 501 in the slide rail 404. Locking the slider 501 in the slide rail 404 can improve the stability of the tank 502 in taking liquid soil, and prevent the tank 502 from sliding and falling into the soil during the soil taking process. At the same time, such a locking structure can also conveniently and quickly replace the tank 402, thereby improving the collection efficiency of liquid soil. ;

[0035] Preferably, the soil taking mechanism 500 includes a slider 501, one end of which is slidably connected to a slide rail 404, the lower end of the slider 501 is fixedly connected to a tank body 502, a second opening 5021 is provided on the surface of the tank body 502, the lower end of the tank body 502 is fixedly connected to a conical barrel 503, the upper end of the tank body 502 is fixedly connected to a third sleeve 504, the interior of the third sleeve 504 is elastically connected to a fourth sliding rod 505 through a spring, the upper end of the fourth sliding rod 505 is fixedly connected to a first baffle 506, the fourth sliding rod 505 passes through the top of the tank body 502 and is slidably connected thereto, the lower end of the fourth sliding rod 505 is fixedly connected to a cover plate 507, and a scraper 508 is fixedly connected to the corner of the outer surface of the tank body 502 near the second opening 5021; the scraper 508 arranged on the outer surface of the tank body 502 can play a guiding role. When the tank body 502 rotates around the second sliding rod 401, the surrounding soil can be guided into the tank body 502, so that the soil collected in the tank body 502 is full enough to avoid the existence of many gaps, which can promote the tank body 502 to take soil better. The scraper 508 arranged on the outer surface of the tank body 502 can play a guiding role, guiding the surrounding soil into the tank body 502, so that the soil collected in the tank body 502 is full enough to avoid the existence of many gaps, which can promote the tank body 502 to take soil better. The lower end of the second opening 5021 in the tank body 502 is a liquid soil chamber for storing sampling, and the conical barrel 503 at the lower end of the tank body 502 is used to store water in the liquid soil. A filter net is arranged between the tank body 502 and the conical barrel 503 at the lower end to separate the solid and liquid in the soil, thereby further improving the accuracy of the liquid soil in the forestry ecology.

[0036] Preferably, the slag discharge mechanism 600 includes a fifth sliding rod 601, the upper end of the fifth sliding rod 601 is slidably connected to the inner surface of the second sliding rod 401, the lower end of the fifth sliding rod 601 is fixedly connected to a cone head 602, the surface of the cone head 602 is fixedly connected to a barb 603, and the surface of the fifth sliding rod 601 is fixedly connected to a second baffle 604; when the arc plate 202 moves downward, the cone head 602 moves downward, and the cone head 602 moves downward, which drives the barb 603 to move downward, and the arc plate 202 moves downward. When the upper end of the cone head 602 is fitted, the barbs 603 will lock the two arc plates 202 to prevent the two arc plates 202 from unfolding when drilling into the soil. When the arc plates 202 move upward out of the soil, the cone head 602 will move away from the notch 2021 under the action of gravity. The cone head 602 moves downward, which will drive the barbs 603 to move downward away from the lower end of the arc plate 202. The cone head 602 moves downward and also drives the fifth sliding rod 601 to move downward. The fifth sliding rod 601 moves downward and drives the second baffle plate 604 to move downward. The second baffle 604 moves downward for a distance and will be engaged with the inner surface of the arc plate 202. The arc plate 202 is a thin plate, and the cone head 602 is rhombus-shaped. In this way, the soil clamped by the two arc plates 202 in the soil and the soil attached to the surface of the tank body 502 enter the cylinder 200 and fall off and are discharged from the notch 2021. Since the cone head 602 is rhombus-shaped, the liquid soil is discharged from the notch 2021 and will not accumulate on the upper end of the cone head 602. The cone head 602 is provided at the notch 2021 at the lower end of the two arc plates 202. 602 can act as a pointed drill bit that penetrates into the soil, and at the same time, it can lock the two arc plates 202 during the process of penetrating into the soil to prevent the two arc plates 202 from unfolding during the process of penetrating into the soil and descending. At the same time, when the cylinder 200 moves out of the soil, the cone head 602 will be away from the notch 2021, thereby facilitating the discharge of the fluid soil that enters the cylinder 200 from the notch 2021 during the soil taking process. Moreover, the cone head 602 is rhombus-shaped, so the fluid soil discharged from the notch 2021 will not accumulate on the upper end of the cone head 602.

[0037] Working principle: When the present invention is in use, the soil sampling device is first placed on the upper end of the soil in the area to be sampled, and the base 100 serves to support the upper surface of the soil to be tested. The handle 302 is pressed downward, and the handle 302 is pressed downward to drive the connecting block 301 to move downward, and the connecting block 301 moves downward to drive the cylinder 200 to move downward, and the cylinder 200 moves downward to drive the rotating pin 201 to move downward, and the rotating pin 201 moves downward to drive the arc plate 202 to move downward, and the lower end of the cylinder 200 is elastically connected to the torsion spring through the rotating pin 201, and there are two symmetrically arranged arc plates 202. Initially, the two arc plates 202 are tightly fitted together under the action of the torsion spring elastic force, and a notch 2021 is provided at the lower end of the arc plate 202, and the notch 2021 at the lower end of the arc plate 202 can be used to discharge excess soil in the cylinder 200. When the arc plate 202 is inserted into the soil, it will cooperate with the cone head 602, and the cone head 602 will fit tightly in the notch under the reverse force of the soil. The barbs 603 arranged on both sides of the cone head 602 can fit the arc plate 202 tightly together to prevent the arc plate 202 from expanding to both sides during the process of being inserted into the soil; the structure set up adopts that two symmetrically arranged arc plates 202 are elastically connected to the torsion spring through the rotating pin 201 at the lower end of the cylinder 200. Initially, the two arc plates 202 are tightly fitted together under the elastic force of the torsion spring, and when the arc plate 202 is inserted into the soil, it will cooperate with the cone head 602, and the cone head 602 will fit tightly in the notch under the reverse force of the soil. At the same time, the barbs 603 arranged on both sides of the cone head 602 can fit the arc plate 202 tightly together to prevent the arc plate 202 from expanding to both sides during the process of being inserted into the soil.

[0038] When the arc plate 202 moves downward to a specified depth, the handle 402 is pressed downward, and the downward movement of the handle 402 drives the second sliding rod 401 to move downward, and the downward movement of the second sliding rod 401 drives the second fixing block 403 to move downward, and the downward movement of the second fixing block 403 drives the slide rail 404 to move downward, and the downward movement of the slide rail 404 drives the slider 501 to move downward, and the downward movement of the slider 501 drives the tank body 502 to move downward, and the downward movement of the tank body 502 drives the conical barrel 503 to move downward, and the lower end of the conical barrel 503 is conical and can be easily inserted into the soil. When the tank body 502 moves downward, the third sleeve 504 moves downward, and the downward movement of the third sleeve 504 will drive the fourth sliding rod 505 to move downward, and the downward movement of the fourth sliding rod 505 will drive the first baffle 506 to move downward, and the downward movement of the first baffle 506 will be blocked by the fixing ring 2001 in the cylinder 200, and the tank body 502 continues to move downward, and the first baffle 506 at its upper end stays and fits on the upper surface of the fixing ring 2001, and the tank body 502 continues to move downward, which will push the two arc plates 202 outward. At the same time, due to the first baffle 50 The tank body 502 that stays on the upper surface of the fixing ring 2001 continues to move downward, and relative displacement will occur. The first baffle plate 506 does not move, and the tank body 502 continues to move downward, and the cover plate 507 moves to fit the inner upper surface of the tank body 502. At this time, the soil collecting chamber in the tank body 502 will be opened. When the cover plate 507 moves to fit the inner upper surface of the tank body 502, the tank body 502 just moves to the lower end of the curved plate 202. At this time, the rotating handle 402 will drive the tank body 502 to rotate around the second sliding rod 401, and the second opening 5021 of the tank body 502 is in the direction of rotation. In the forward direction, the rotation of the tank body 502 will load the liquid soil of the specified depth into the chamber for collecting soil inside the tank body 502. After the collection is completed, the handle will be rotated back and lifted up to enter the interior of the cylinder 200, so that the tank body 502 will enter the interior of the cylinder 200. At this time, the tank body 502 and the first baffle 506 will move upward away from the fixing ring 2001. At this time, the spring inside the third sleeve 504 will be reset to push the cover plate 507 downward to cover the upper end of the collected soil, and the collected soil will be sealed in time during the underground collection process to avoid being polluted by the external environment and affecting the detection results;The tank body 502 is provided to collect liquid soil at a certain depth in the forestry ecology, and the cover plate 507 can be promptly closed on the upper end of the collected soil after collection, so that the collected soil is sealed in time during the underground collection process to prevent the detection results from being polluted by the external environment. At the same time, after collection, the tank body 502 is lifted to the uppermost end and the first baffle plate 506 passes through the first opening 3041 on the first fixed block 304. At this time, the third sliding rod 405 is squeezed by the first fixed block 304 and compresses the spring in the second sleeve 406 to move downward. The downward movement of the third sliding rod 405 will move away from the slide groove of the slide rail 404. At this time, the slider 501 of the slide rail 404 is unlocked and can be directly slid outward for removal and replacement. The new tank 502 to be sampled is aligned with the slide groove of the slide rail 404 and pushed into the second fixed block 403. When the handle 402 is moved downward, the third sliding rod 405 will be away from the lower end of the first fixed block 304. At this time, the spring inside the second sleeve 406 will reset and drive the third sliding rod 405 to reset. The reset of the third sliding rod 405 will lock the slider 501 in the slide rail 404. Locking the slider 501 in the slide rail 404 can improve the stability of the tank 502 in taking liquid soil, and prevent the tank 502 from sliding and falling into the soil during the soil taking process. At the same time, such a locking structure can also conveniently and quickly replace the tank 402, thereby improving the collection efficiency of liquid soil. ;

[0039] The scraper 508 arranged on the outer surface of the tank body 502 can play a guiding role. When the tank body 502 rotates around the second sliding rod 401, the surrounding soil can be guided into the interior of the tank body 502, so that the soil collected in the tank body 502 is full enough to avoid the existence of many gaps, which can promote the tank body 502 to take soil better; the scraper 508 arranged on the outer surface of the tank body 502 can play a guiding role, and the surrounding soil is guided into the interior of the tank body 502, so that the soil collected in the tank body 502 is full enough to avoid the existence of many gaps, which can promote the tank body 502 to take soil better. The lower end of the second opening 5021 in the tank body 502 is a liquid soil chamber for storing sampling, and the conical barrel 503 at the lower end of the tank body 502 is used to store water in the liquid soil. A filter net is arranged between the tank body 502 and the conical barrel 503 at the lower end to separate the solid and liquid in the soil, thereby further improving the accuracy of the liquid soil in the forestry ecology.

[0040] When the curved plate 202 moves downward, the cone head 602 will drive the cone head 602 to move downward, and the cone head 602 will drive the barb 603 to move downward. When the curved plate 202 moves downward and fits the upper end of the cone head 602, the barb 603 will lock the two curved plates 202 to prevent the two curved plates 202 from unfolding when drilling into the soil. When the curved plate 202 moves upward out of the soil, the cone head 602 will move away from the notch 2021 under the action of gravity, and the cone head 602 will drive the barb 603 to move downward away from the lower end of the curved plate 202. The downward movement of the cone head 602 will also drive the fifth sliding rod 601 to move downward, and the downward movement of the fifth sliding rod 601 will drive the second baffle 604 to move downward. The second baffle 604 moves downward for a distance and will be engaged with the inner surface of the curved plate 202. The curved plate 202 is a thin plate, and the cone head 602 is rhombus-shaped. The soil clamped by the closed arc plate 202 and the soil attached to the surface of the tank body 502 enter the cylinder 200 and partially fall off and are discharged from the notch 2021. Since the cone head 602 is rhombus-shaped, the liquid soil is discharged from the notch 2021 without accumulating on the upper end of the cone head 602. The cone head 602 provided at the notch 2021 at the lower end of the two arc plates 202 can not only act as a sharp drill bit for piercing the soil, but also lock the two arc plates 202 during the piercing process to prevent the two arc plates 202 from unfolding during the piercing process and descending. At the same time, when the cylinder 200 moves out of the soil, the cone head 602 will be away from the notch 2021, thereby promoting the liquid soil entering the cylinder 200 during the soil taking process to be discharged from the notch 2021. Moreover, since the cone head 602 is rhombus-shaped, the liquid soil is discharged from the notch 2021 without accumulating on the upper end of the cone head 602.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A soil sampling device for forestry ecological soil detection, comprising a base (100), wherein a cylinder (200) is slidably connected inside the base (100), characterized in that: The upper end of the cylinder (200) is provided with a first pressing mechanism (300), an end of the upper end of the cylinder (200) close to the first pressing mechanism (300) is provided with a second pressing mechanism (400), a soil taking mechanism (500) is provided inside the cylinder (200), and a slag discharge mechanism (600) is provided inside the cylinder (200) close to the lower end of the soil taking mechanism (500); The second pressing mechanism (400) comprises a second sliding rod (401), and a second fixing block (403) is fixedly connected to a side wall of the second sliding rod (401); The second pressing mechanism (400) further comprises a slide rail (404), one end of the second fixed block (403) is fixedly connected to the slide rail (404), a hollow groove (4041) is provided inside the slide rail (404), a third slide rod (405) is slidably connected inside the hollow groove (4041), a second sleeve (406) is fixedly connected to the side wall of the slide rail (404), and the third slide rod (405) and the second sleeve (406) are elastically connected via a spring; The soil taking mechanism (500) comprises a slider (501), one end of the slider (501) is slidably connected to a slide rail (404), the lower end of the slider (501) is fixedly connected to a tank body (502), a second opening (5021) is provided on the surface of the tank body (502), the lower end of the tank body (502) is fixedly connected to a conical barrel (503), the upper end of the tank body (502) is fixedly connected to a third sleeve (504), the interior of the third sleeve (504) is elastically connected to a fourth sliding rod (505) via a spring, the upper end of the fourth sliding rod (505) is fixedly connected to a first baffle (506), the fourth sliding rod (505) passes through the top end of the tank body (502) and is slidably connected thereto, and the lower end of the fourth sliding rod (505) is fixedly connected to a cover plate (507); A fixing ring (2001) is fixedly connected to the inner surface of the cylinder (200); a rotating pin (201) is rotatably connected to the lower end of the cylinder (200) via a torsion spring; an arc-shaped plate (202) is fixedly connected to the lower end of the rotating pin (201); and a notch (2021) is provided at the lower end of the arc-shaped plate (202).

2. The soil sampling device for forestry ecological soil detection according to claim 1 is characterized in that: The first pressing mechanism (300) comprises a connecting block (301), the lower end of the connecting block (301) is fixedly connected to the cylinder (200), the upper end of the connecting block (301) is fixedly connected to a handle (302), and the center of the handle (302) is penetrated by a first sleeve (303).

3. The soil sampling device for forestry ecological soil detection according to claim 2 is characterized in that: The first pressing mechanism (300) further comprises a first fixing block (304), the first sleeve (303) being fixedly connected to the outer surface thereof, the first fixing block (304) being provided with a first opening (3041) therein, the handle (302) being penetrated by a first sliding rod (305), the lower end of the first sliding rod (305) being fixedly connected to the base (100).

4. The soil sampling device for forestry ecological soil detection according to claim 3 is characterized by: The second sliding rod (401) is arranged inside the first sleeve (303) and is slidably connected thereto, and the upper end of the second sliding rod (401) is fixedly connected to a turning handle (402).

5. The soil sampling device for forestry ecological soil detection according to claim 1 is characterized by: The soil taking mechanism (500) further comprises a first baffle (506), and a scraper (508) is fixedly connected to the outer surface of the tank body (502) at a corner close to the second opening (5021).

6. The soil sampling device for forestry ecological soil detection according to claim 1 is characterized in that: The slag discharge mechanism (600) comprises a fifth sliding rod (601), the upper end of the fifth sliding rod (601) is slidably connected to the inner surface of the second sliding rod (401), the lower end of the fifth sliding rod (601) is fixedly connected to a cone head (602), the surface of the cone head (602) is fixedly connected to a barb (603), and the surface of the fifth sliding rod (601) is fixedly connected to a second baffle (604).

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