Seed sample extraction equipment for alpine meadow soil
Patent Information
- Application Number
- CN202411691141.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-03-07
Smart Images
Figure CN119574211A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of soil seed extraction, in particular to a device for extracting soil seed samples from an alpine meadow. Background Art
[0002] Alpine meadows are grassland ecosystems that grow at high altitudes and in cold climates, usually in mountainous or highland areas. They have a short growing season in summer with rich herbaceous plants, such as cold-tolerant grasses, mosses and low shrubs. Winters are characterized by severe cold and prolonged snow cover. Alpine meadows are an important part of the ecosystem, supporting some unique plant and animal species.
[0003] In order to study plant community succession, ecological restoration, climate change and the ecological adaptation mechanism of plants, seed samples are usually extracted from alpine meadow soil. Through in-depth research on the seed bank, we can better understand the stability and sustainability of ecosystems in alpine areas, which is of great significance for scientific researchers to study grassland ecosystems, seed dispersal mechanisms and grassland restoration.
[0004] However, in these areas, due to the severe cold climate, frozen soil, and the often existing permafrost barrier, collecting soil seed samples becomes particularly difficult. In the traditional soil sample collection process, especially in the alpine meadow with severe permafrost, the sampling equipment is often limited by the physical properties of the soil, resulting in the inability to effectively penetrate the permafrost, which in turn affects the representativeness and collection effect of the sample. In addition, traditional methods usually rely on manual operation, which is not only inefficient, but also prone to errors, and the interference of the external environment may also affect the accuracy and integrity of the sampling. For this reason, those skilled in the art have proposed a soil seed sample extraction device for alpine meadows to solve the above problems. Summary of the invention
[0005] In view of the shortcomings of the prior art, the present invention provides a high-cold meadow soil seed sample extraction device, which solves the problem that traditional soil sample collection sampling equipment is often limited by the physical properties of the soil, resulting in the inability to effectively penetrate the permafrost layer and relying on manual operation.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an alpine meadow soil seed sample extraction device, comprising a mobile installation body and a mounting frame, wherein a connecting component is provided between the mobile installation body and the mounting frame, and is used to connect the mobile installation body and the mounting frame and to retract and release the mounting frame;
[0007] A driving assembly is provided inside the mounting frame, which is used to drive the ground drilling assembly and the sampling assembly;
[0008] A ground drilling assembly is provided on the right side of the bottom of the driving assembly, which is used to break the frozen soil layer;
[0009] A sampling assembly is provided on the left side of the bottom of the driving assembly, which is used to sample soil seeds;
[0010] A screening assembly is arranged on the rear side of the mounting frame, and is used for screening soil and seeds.
[0011] Preferably, the driving assembly includes a motor 1, the motor 1 is fixedly connected to the top of the mounting frame, the output end of the motor 1 is fixedly connected to a rotating rod, the interior of the mounting frame is rotatably connected to the exterior of the rotating rod, the exterior of the rotating rod is fixedly connected to a mounting frame 1, the interior of the mounting frame 1 is fixedly connected to hydraulic cylinders on both left and right sides, the output end of the hydraulic cylinder is fixedly connected to a mounting frame 2, the interior of the right mounting frame 2 is fixedly connected to the motor 2, and the interior of the left mounting frame 2 is fixedly connected to a vacuum pump.
[0012] Preferably, the earth-drilling assembly comprises a drill rod, the drill rod is fixedly connected to the output end of motor 2, and a drill bit is fixedly connected to the bottom end of the drill rod.
[0013] Preferably, the sampling assembly comprises a sampling cylinder, the sampling cylinder is fixedly connected to the output end of the vacuum pump, a piston is slidably connected inside the sampling cylinder, and a sealing ring is sleeved outside the piston.
[0014] Preferably, the screening assembly includes a fixed frame, which is fixedly connected to the rear end of the mounting frame, the upper and lower sides of the interior of the fixed frame are rotatably connected to the screen, the rear side of the fixed frame is fixedly connected to a motor three, the upper and lower sides of the exterior of the fixed frame are rotatably connected to pulleys, the upper and lower sides of the interior of the fixed frame are fixedly connected to a fixed frame, the interior of the fixed frame is rotatably connected to a rotating shaft, the outside of the rotating shaft is fixedly connected to a cam, the interior of the fixed frame is slidably connected to a connecting rod, the bottom end of the connecting rod is fixedly connected to a baffle, the top end of the connecting rod is rotatably connected to a slider, the outside of the connecting rod is sleeved with a spring, and a slide groove is provided at the bottom of the screen.
[0015] Preferably, the output end of the motor three is fixedly connected to the outer side of one of the pulleys, the two pulleys are connected by a belt, and the inner side of the pulley is fixedly connected to the outer side of the rotating shaft.
[0016] Preferably, one end of the spring is fixedly connected to the top of the baffle, the other end of the spring is fixedly connected to the inner wall of the fixed frame, the outside of the cam abuts against the outside of the baffle, and the slider is slidably connected to the inside of the slide groove.
[0017] Preferably, the connecting assembly includes two fixed blocks 1, and the two fixed blocks 1 are respectively fixedly connected to the left and right sides of the front end of the mobile installation body, and the left and right sides of the rear end of the installation frame are fixedly connected with fixed blocks 2, and the adjacent sides of the fixed blocks 1 on the left and right sides are fixedly connected with limit rods, and the separated sides of the fixed blocks 2 on the left and right sides are installed with fixing parts, and a hydraulic rod is arranged inside the mobile installation body.
[0018] Preferably, the interior of the second fixing block is rotationally connected to the exterior of the limiting rod, and the exterior of the fixing member is movably connected to the exterior of the hydraulic rod.
[0019] Preferably, a sampling box is detachably connected to the right side of the fixing frame, and an operating table is arranged outside the mobile installation body.
[0020] The present invention provides a device for extracting soil seed samples from alpine meadows. It has the following beneficial effects:
[0021] 1. The present invention drives the drilling assembly through a motor so that the drill rod and the drill bit can accurately act on the frozen soil layer, overcome the common frozen soil layer obstacles in alpine meadow areas, deeply penetrate the soil layer and accurately sample, and cooperate with the vacuum pump and the piston to effectively absorb soil and seeds during the sampling process, ensuring that the collected samples are more accurate and complete, reducing external environmental interference or sample loss, and through the automated workflow, the entire soil seed sample extraction process can be completed efficiently, and various components (such as hydraulic system, motor, vacuum pump, etc.) cooperate with each other, and all steps from drilling, sampling to screening can be completed without manual intervention. Through this automated operation, the sampling efficiency can be significantly improved, and the complexity and error of manual operation can be reduced. It is particularly suitable for efficient soil seed collection in large-scale scientific research work.
[0022] 2. The present invention enables the screen to vibrate rhythmically through the cooperation of the cam and the baffle, thereby realizing effective screening of soil seeds. This process can finely separate the soil seeds from other soil impurities, ensuring that the final extracted sample has high purity, which is beneficial to subsequent seed analysis and research, thereby being able to process soil samples of different particle sizes and improving the adaptability and accuracy of screening.
[0023] 3. The present invention can ensure the consistency of each sampling through automated sampling and avoid deviations caused by human factors. Through a precise control system, the equipment can collect samples at different locations and depths, thereby ensuring that the collected soil seed samples are broadly representative and can more accurately reflect the seed characteristics of the soil in the area.
[0024] 4. The present invention integrates multiple functions such as drilling, sampling, and screening, thereby avoiding the scattered operation of multiple devices, improving work efficiency, and reducing the difficulty of equipment transportation and operation. It not only saves space and resources, but also improves the consistency and smoothness of the work process, making the entire soil seed extraction process simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 A perspective view of the present invention;
[0026] Figure 2 for Figure 1 The enlarged view of point A in the middle;
[0027] Figure 3 It is a schematic diagram of the drill rod structure of the present invention;
[0028] Figure 4 It is a schematic diagram of the piston structure of the present invention;
[0029] Figure 5 It is a schematic diagram of the pulley structure of the present invention;
[0030] Figure 6 for Figure 5 The enlarged view of point B in the middle;
[0031] Figure 7 It is a schematic diagram of the structure of the sampling box of the present invention;
[0032] Figure 8 for Figure 7 Enlarged view of point C in the middle.
[0033] Among them, 1. Mobile installation body; 2. Connection assembly; 201. Fixed block 1; 202. Fixed block 2; 203. Limit rod; 204. Fixing piece; 205. Hydraulic rod; 3. Mounting frame; 4. Driving assembly; 401. Motor 1; 402. Rotating rod; 403. Mounting frame 1; 404. Hydraulic cylinder; 405. Mounting frame 2; 406. Motor 2; 407. Vacuum pump; 5. Drilling assembly; 501. Drill rod ; 502, drill bit; 6, sampling assembly; 601, sampling tube; 602, piston; 603, sealing ring; 7, screening assembly; 701, fixed frame; 702, screen; 703, motor three; 704, pulley; 705, fixed frame; 706, rotating shaft; 707, cam; 708, connecting rod; 709, baffle; 710, slider; 711, spring; 712, slide; 8, sampling box; 9, operating table. DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0035] Please see attached Figure 1 , Attachment Figure 2 and attached Figure 5 The embodiment of the present invention provides a soil seed sample extraction device for an alpine meadow, comprising a mobile installation body 1 and a mounting frame 3, wherein a connecting assembly 2 is arranged between the mobile installation body 1 and the mounting frame 3, and is used to connect the mobile installation body 1 and the mounting frame 3 and to retract and release the mounting frame 3; the connecting assembly 2 comprises two fixing blocks 201, and the two fixing blocks 201 are respectively fixedly connected to the left and right sides of the front end of the mobile installation body 1, and the left and right sides of the rear end of the mounting frame 3 are fixedly connected to fixing blocks 202, and the adjacent sides of the fixing blocks 201 on the left and right sides are fixedly connected to a limiting rod 203, and the inside of the fixing block 202 is rotatably connected to the outside of the limiting rod 203, and the separated sides of the fixing blocks 202 on the left and right sides are installed with fixing parts 204, and the inside of the mobile installation body 1 is provided with a hydraulic rod 205, and the outside of the fixing part 204 is movably connected to the outside of the hydraulic rod 205.
[0036] Specifically, the mobile installation body 1 and the mounting frame 3 are connected and adjusted through the connecting component 2. The main function of the connecting component 2 is to ensure the flexibility and stability of the equipment in different environments. The connecting component 2 includes two fixed blocks 201, two fixed blocks 202, a limit rod 203, a hydraulic rod 205, etc. The two fixed blocks 201 are respectively fixedly connected to the left and right sides of the front end of the mobile installation body 1, and play a role in stabilizing the support of the mounting frame 3. The two fixed blocks 202 are respectively fixedly connected to the left and right sides of the rear end of the mounting frame 3. These fixed blocks ensure the support and stability of the mounting frame 3 to avoid shaking during soil extraction. The cooperation of the limit rod 203 and the hydraulic rod 205 allows the mounting frame 3 to be retracted and adjusted according to actual needs. Through the telescopic action of the hydraulic rod 205, the angle and height of the mounting frame 3 can be adjusted to ensure that the drilling component 5 and the sampling component 6 can accurately act on the soil layer.
[0037] Please see attached Figure 3A driving assembly 4 is arranged inside the mounting frame 3, which is used to drive the drilling assembly 5 and the sampling assembly 6; the driving assembly 4 includes a motor 401, which is fixedly connected to the top of the mounting frame 3, and the output end of the motor 401 is fixedly connected to a rotating rod 402, the inside of the mounting frame 3 is rotatably connected to the outside of the rotating rod 402, and the outside of the rotating rod 402 is fixedly connected to a mounting frame 1 403, and the left and right sides of the inside of the mounting frame 1 403 are fixedly connected to hydraulic cylinders 404, and the output end of the hydraulic cylinder 404 is fixedly connected to a mounting frame 2 405, the inside of the right mounting frame 2 405 is fixedly connected to a motor 2 406, and the inside of the left mounting frame 2 405 is fixedly connected to a vacuum pump 407.
[0038] Specifically, the driving component 4 is the core power source of the present invention, which is responsible for driving the drilling component 5 and the sampling component 6 to work. The component includes a motor 1 401, a motor 2 406, a rotating rod 402, a hydraulic cylinder 404, etc. The motor 1 401 is installed on the top of the mounting frame 3 to provide power for the rotating rod 402. The rotating rod 402 is connected to the mounting frame 3 by rotation, driving the mounting frame 1 403 to rotate, thereby realizing power transmission to the drilling component 5 and the sampling component 6. The cooperation of the hydraulic cylinder 404 and the mounting frame 2 405 can adjust the depth and position of the drill bit 502 and the sampling tube 601, ensuring that the equipment can work effectively at different depths of the soil layer. The motor 2 406 and the vacuum pump 407 fixedly connected in the mounting frame 2 405 provide power sources for the drilling component 5 and the sampling component 6 respectively.
[0039] Please refer to the attached Figure 3 A drilling assembly 5 is provided on the right side of the bottom of the driving assembly 4, which is used to break the frozen soil layer; the drilling assembly 5 includes a drill rod 501, which is fixedly connected to the output end of the motor 2 406, and a drill bit 502 is fixedly connected to the bottom end of the drill rod 501.
[0040] Specifically, the drilling assembly 5 is used to penetrate the frozen soil layer to provide space for soil sampling. The assembly includes a drill rod 501, a drill bit 502, and a drive system connected to the motor 2 406. The drill rod 501 is driven by the motor 2 406 and can penetrate the frozen soil layer by rotating and pushing. The drill bit 502 is located at the bottom end of the drill rod 501 and is designed with multiple cutting teeth, which can effectively break and penetrate the soil, especially the frozen soil layer. The structure of the drill bit 502 adopts high-strength alloy material to ensure its durability and stability in frozen soil.
[0041] Please refer to the attached Figure 3 and attached Figure 4A sampling assembly 6 is provided on the left side of the bottom of the driving assembly 4, which is used to sample soil seeds; the sampling assembly 6 includes a sampling cylinder 601, which is fixedly connected to the output end of the vacuum pump 407, and a piston 602 is slidably connected inside the sampling cylinder 601, and a sealing ring 603 is provided on the outside of the piston 602.
[0042] Specifically, the sampling component 6 is a key part of the present invention, which is specially used to extract seeds from soil samples. The component includes a sampling tube 601, a piston 602, a sealing ring 603 and a suction system connected to a vacuum pump 407. The soil in the alpine meadow area is generally moist and has a loose structure, so it can be extracted by vacuum. The sampling tube 601 is a hollow cylinder, which can move up and down in the soil through a hydraulic cylinder 404 to collect soil samples. The sampling tube 601 sucks the soil into it through the negative pressure of the vacuum pump 407. The cooperation between the piston 602 and the sealing ring 603 can ensure the sealing during the sampling process, avoid leakage of soil samples, and ensure the integrity and accuracy of the samples. The piston 602 slides up and down with the movement of the sampling tube 601, helping to seal and push the soil sample into the sampling tube 601.
[0043] Please refer to the attached Figure 6 -Attached Figure 8 A screening assembly 7 is provided at the rear side of the mounting frame 3, which is used for screening soil and seeds. The screening assembly 7 includes a fixed frame 701, which is fixedly connected to the rear end of the mounting frame 3, and the upper and lower sides of the interior of the fixed frame 701 are rotatably connected with a screen 702, the rear side of the fixed frame 701 is fixedly connected with a motor 3 703, and the upper and lower sides of the exterior of the fixed frame 701 are rotatably connected with pulleys 704, the output end of the motor 3 703 is fixedly connected to the outer side of one of the pulleys 704, and the two pulleys 704 are connected by belts, and the upper and lower sides of the interior of the fixed frame 701 are fixedly connected with a fixed frame 705, and the interior of the fixed frame 705 is rotatably connected with a rotating shaft 70 6. The inner side of the pulley 704 is fixedly connected to the outer side of the rotating shaft 706, the outer side of the rotating shaft 706 is fixedly connected with a cam 707, the inner side of the fixed frame 705 is slidably connected with a connecting rod 708, the bottom end of the connecting rod 708 is fixedly connected with a baffle 709, the outer side of the cam 707 abuts against the outer side of the baffle 709, the top end of the connecting rod 708 is rotatably connected with a slider 710, the outer side of the connecting rod 708 is sleeved with a spring 711, one end of the spring 711 is fixedly connected to the top of the baffle 709, and the other end of the spring 711 is fixedly connected to the inner wall of the fixed frame 705, a slide groove 712 is provided at the bottom of the screen 702, and the slider 710 is slidably connected inside the slide groove 712.
[0044] Specifically, the screening component 7 is located at the rear side of the mounting frame 3, is one of the core components of the device, and is mainly used for screening and separating soil and seeds. The fixed frame 701 is the supporting frame of the screening component 7, which is connected to the rear end of the mounting frame 3. Its main function is to support and fix other components, such as the screen 702, the motor 3 703 and the pulley 704. The upper and lower sides of the fixed frame 701 are rotatably connected to the screen 702. The rotation and vibration of the screen 702 can effectively screen the seeds and other impurities in the soil. The two screens 702 are inclined. The mesh of the upper screen 702 is relatively large, so that impurities larger than seeds, such as gravel, can be screened out and fall with the vibration. The mesh of the lower screen 702 is relatively small, so that the seeds can remain on the lower screen 702 and fall into the sampling box 8 with the vibration, and the crushed soil falls through the opening on the bottom side of the fixed frame 701.
[0045] Motor three 703 is located at the rear side of the fixed frame 701, and is used to drive the screen 702 to perform screening operations. The output end of motor three 703 is connected to one of the pulleys 704, and the other pulley 704 can be driven to rotate through the transmission of the belt, so that the rotation of the pulley 704 drives the rotating shaft 706 to rotate. The rotating shaft 706 is located in the fixed frame 705 and is connected to the inner side of the pulley 704. The outside of the rotating shaft 706 is fixedly connected with a cam 707. The function of the cam 707 is to cooperate with the baffle 709. When the rotating shaft 706 rotates, the cam 707 drives the baffle 709 to move up and down, and the connecting rod 708 is fixed in the fixed frame 705. The fixed frame 705 is internally slidably connected, the bottom end of the connecting rod 708 is fixedly connected to the baffle 709, and the top is rotatably connected to the slider 710, so that when the baffle 709 moves up and down, it will drive the connecting rod 708 to move with it, and the slider 710 slides in the slide groove 712 inside the screen 702, so that the slider 710 will drive the screen 702 to move, and the baffle 709 can be driven to reset through the elastic action of the spring 711. Combined with the continuous rotation of the cam 707, the baffle 709 can move back and forth up and down, and then the slider 710 moves back and forth in the slide groove 712, so that the screen 702 can vibrate continuously.
[0046] Please see attached Figure 1 A sampling box 8 is detachably connected to the right side of the fixed frame 701 , and an operating table 9 is arranged outside the mobile installation body 1 .
[0047] Specifically, the sampling box 8 is detachably connected to the right side of the fixed frame 701, and is used to receive the seed samples after screening. The design of the sampling box 8 ensures the safe storage and convenient removal of the samples. Its detachable structure allows the operator to replace or clean the sampling box 8 as needed during the screening process. An operating table 9 is installed on the installation body 1 for the operator to control various functions of the equipment. The operating table 9 provides control buttons such as start and stop, speed adjustment, etc. for equipment such as the drive component 4 and the motor three 703. The user can adjust the intensity and frequency of screening according to actual needs.
[0048] Working principle: First, when the installation body 1 is driven to move to a suitable position, the hydraulic rod 205 is driven to drive the fixed block 202 to move, thereby erecting the installation frame 3 on the ground;
[0049] Secondly, the motor 1 401 is started to drive the rotating rod 402 to rotate, so that the drilling assembly 5 rotates to the front side, thereby starting the right hydraulic cylinder 404 and the motor 2 406 to operate, so that the drill rod 501 and the drill bit 502 drill the frozen soil layer, and after breaking it, the drill rods 501 and 502 are lifted up, and the motor 1 401 is started to drive the rotating rod 402 to rotate, so that the sampling assembly 6 rotates to the front side, thereby starting the left hydraulic cylinder 404 to operate, so that the sampling tube 601 can enter the soil, and then the vacuum pump 407 is started to operate, so that the piston 602 rises, thereby sucking the soil seeds into the sampling tube 601, and then the motor 1 401 drives the rotating rod 402 to rotate, so that the sampling tube 601 comes to the top of the screen 702, and the vacuum pump 407 pushes the piston 602 down, thereby pushing the soil seeds onto the screen 702;
[0050] Finally, start motor three 703 to operate, thereby driving one of the pulleys 704 to rotate, and then driving the other pulley 704 to rotate through the belt, thereby driving the rotating shaft 706 to rotate, so that the cam 707 rotates, so that the cam 707 pushes the baffle 709 to move upward, and then drives the connecting rod 708 to move with it, thereby pushing the slider 710 to move in the slide groove 712, and then drives one side of the screen 702 to move upward, and the baffle 709 is reset through the elastic action of the spring 711, and then the baffle 709 is moved up and down reciprocatingly through the rotation of the cam 707, thereby driving the screen 702 to vibrate, and then the soil seeds are screened, so that the seeds can pass through the lower screen 702 into the sampling box 8, thereby completing the extraction of soil seed samples.
[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A soil seed sample extraction device for alpine meadows, comprising a mobile installation body (1) and a mounting frame (3), characterized in that: A connecting assembly (2) is provided between the mobile installation body (1) and the installation frame (3), and is used to connect the mobile installation body (1) and the installation frame (3) and to retract and extend the installation frame (3); A driving assembly (4) is arranged inside the mounting frame (3) and is used to drive the ground drilling assembly (5) and the sampling assembly (6); A ground-drilling assembly (5) is provided on the right side of the bottom of the driving assembly (4) and is used to break the frozen soil layer; A sampling component (6) is provided on the left side of the bottom of the driving component (4) for sampling soil seeds; A screening component (7) is arranged on the rear side of the mounting frame (3) and is used for screening soil and seeds.
2. The alpine meadow soil seed sample extraction device according to claim 1, characterized in that: The driving assembly (4) comprises a motor 1 (401), wherein the motor 1 (401) is fixedly connected to the top end of the mounting frame (3), the output end of the motor 1 (401) is fixedly connected to a rotating rod (402), the interior of the mounting frame (3) is rotatably connected to the exterior of the rotating rod (402), the exterior of the rotating rod (402) is fixedly connected to a mounting frame 1 (403), the interior of the mounting frame 1 (403) is fixedly connected to hydraulic cylinders (404) on both left and right sides, the output end of the hydraulic cylinder (404) is fixedly connected to a mounting frame 2 (405), the interior of the right mounting frame 2 (405) is fixedly connected to a motor 2 (406), and the interior of the left mounting frame 2 (405) is fixedly connected to a vacuum pump (407).
3. The alpine meadow soil seed sample extraction device according to claim 2, characterized in that: The earth-drilling assembly (5) comprises a drill rod (501), wherein the drill rod (501) is fixedly connected to the output end of the second motor (406), and a drill bit (502) is fixedly connected to the bottom end of the drill rod (501).
4. The alpine meadow soil seed sample extraction device according to claim 2, characterized in that: The sampling assembly (6) comprises a sampling cylinder (601), wherein the sampling cylinder (601) is fixedly connected to the output end of the vacuum pump (407), a piston (602) is slidably connected inside the sampling cylinder (601), and a sealing ring (603) is sleeved outside the piston (602).
5. The alpine meadow soil seed sample extraction device according to claim 1, characterized in that: The screening assembly (7) comprises a fixed frame (701), the fixed frame (701) is fixedly connected to the rear end of the mounting frame (3), the upper and lower sides of the interior of the fixed frame (701) are both rotatably connected to a screen (702), the rear side of the fixed frame (701) is fixedly connected to a motor 3 (703), the upper and lower sides of the exterior of the fixed frame (701) are both rotatably connected to pulleys (704), the upper and lower sides of the interior of the fixed frame (701) are both fixedly connected to a fixed frame (705), and the fixed frame The interior of (705) is rotatably connected to a rotating shaft (706), the exterior of the rotating shaft (706) is fixedly connected to a cam (707), the interior of the fixed frame (705) is slidably connected to a connecting rod (708), the bottom end of the connecting rod (708) is fixedly connected to a baffle (709), the top end of the connecting rod (708) is rotatably connected to a slider (710), the exterior of the connecting rod (708) is sleeved with a spring (711), and a slide groove (712) is provided at the bottom of the screen (702).
6. The alpine meadow soil seed sample extraction device according to claim 5, characterized in that: The output end of the motor three (703) is fixedly connected to the outer side of one of the pulleys (704), the two pulleys (704) are connected via a belt, and the inner side of the pulley (704) is fixedly connected to the outer side of the rotating shaft (706).
7. The alpine meadow soil seed sample extraction device according to claim 5, characterized in that: One end of the spring (711) is fixedly connected to the top of the baffle (709), and the other end of the spring (711) is fixedly connected to the inner wall of the fixed frame (705). The outside of the cam (707) abuts against the outside of the baffle (709), and the slider (710) is slidably connected to the inside of the slide groove (712).
8. The alpine meadow soil seed sample extraction device according to claim 1, characterized in that: The connection assembly (2) comprises two fixing blocks (201), the two fixing blocks (201) being fixedly connected to the left and right sides of the front end of the mobile installation body (1), respectively; the left and right sides of the rear end of the installation frame (3) are both fixedly connected to fixing blocks (202); the adjacent sides of the fixing blocks (201) on the left and right sides are fixedly connected to limit rods (203); the separated sides of the fixing blocks (202) on the left and right sides are both installed with fixing parts (204); and a hydraulic rod (205) is arranged inside the mobile installation body (1).
9. The alpine meadow soil seed sample extraction device according to claim 8, characterized in that: The interior of the second fixing block (202) is rotatably connected to the exterior of the limiting rod (203), and the exterior of the fixing member (204) is movably connected to the exterior of the hydraulic rod (205).
10. The alpine meadow soil seed sample extraction device according to claim 5, characterized in that: A sampling box (8) is detachably connected to the right side of the fixed frame (701), and an operating table (9) is arranged outside the mobile installation body (1).