Alpine meadow root stratified sampling device
By designing a root stratification sampling device for alpine meadows, efficient and accurate multi-layer synchronous sampling was achieved by using a hammer impact mechanism and a rifling structure. This solved the problems of low efficiency and sample loss in sampling devices in alpine meadow environments and adapted to the special habitat requirements of alpine meadows.
Patent Information
- Application Number
- CN202511823347.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-05
- Publication Date
- 2026-01-23
AI Technical Summary
Existing root sampling techniques are difficult to use in alpine meadow environments to achieve precise stratified sampling of soil layers at different depths in a single, simultaneous process. Furthermore, conventional equipment is prone to damaging the soil structure and causing sample loss during penetration, making it impossible to obtain complete undisturbed soil columns at different depths.
A layered root sampling device for alpine meadows was designed. The sampling components, which are arranged centrally symmetrically, are driven by a hammering mechanism to penetrate the soil layer synchronously and vertically. Combined with a rifling structure and a locking structure, the stability of the sampling components during penetration and lifting is ensured, preventing soil sample detachment and enabling multi-layer synchronous sampling.
It achieves efficient and accurate multi-layer synchronous stratified sampling, improves operational efficiency, ensures the originality and representativeness of samples, solves the problem of easy sample loss, and adapts to the special habitat requirements of alpine meadows.
Smart Images
Figure CN121384522A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application belongs to the technical field of plant root sampling, and particularly relates to a high-cold meadow root layering sampling device. BACKGROUND
[0002] The high-cold meadow ecological system has the characteristics of shallow soil layer, concentrated root distribution and high sensitivity to the original structure of the soil due to its unique geographical and climatic conditions. Studying the root system in this region is the key to understanding the carbon and nitrogen cycles, vegetation productivity and community dynamics of the ecological system.
[0003] However, the existing root sampling technology has obvious limitations in the high-cold meadow environment. The traditional sampling method cannot achieve precise layering sampling of different depths of soil at one time. The usual operation mode is to sample in batches and at different points, which is not only low in efficiency, but also causes the data of samples at different depths to lack strict comparability due to the micro-environmental differences between the sampling points, affecting the accuracy of the research. The soil in the high-cold meadow often becomes compact due to the presence of gravel or freeze-thaw action. The conventional static pressure or rotary sampler is extremely prone to encounter great resistance when penetrating, resulting in insufficient sampling depth or soil compaction and deformation due to forced penetration, which seriously damages the original distribution state of the root system and the layered structure of the soil, and the obtained samples lose the in-situ representativeness. In the process of extracting the samples, the friction between the sampler and the soil and the action of gravity are extremely easy to cause the loose meadow soil samples, especially the deep soil samples, to slide or break from the sampling tube, causing sample loss and layer confusion, and making it impossible to obtain complete and different-depth original soil columns. The field operation conditions in the high-cold region are harsh, and high requirements are put forward for the portability, easy operation and sampling efficiency of the equipment. Many complex devices require external power or multi-person cooperation, which is difficult to effectively deploy in remote high-cold areas.
[0004] Therefore, there is an urgent need for a high-cold meadow root layering sampling device. SUMMARY
[0005] The purpose of the application is to provide a high-cold meadow root layering sampling device to solve the above problems.
[0006] To achieve the above purpose, the application provides the following scheme:
[0007] A high-cold meadow root layering sampling device, comprising:
[0008] a chassis;
[0009] A mounting disc is vertically and slidably arranged on the bottom disc, the bottom disc is coaxially arranged with the mounting disc, a plurality of sampling groups are connected to the bottom of the mounting disc, the sampling groups are symmetrically arranged at the center, each sampling group comprises a plurality of sampling assemblies, the sampling assemblies are correspondingly provided with sampling holes, the sampling holes are arranged on the bottom disc, and the lengths of the sampling assemblies in the same sampling group gradually decrease one by one.
[0010] The sampling assemblies are rotationally connected with the mounting disc, the sampling assemblies are provided with rifling, and the locking structure is arranged between the sampling assemblies and the mounting disc.
[0011] A hammering mechanism is vertically and slidably arranged on the bottom disc, the hammering mechanism is arranged above the mounting disc, and the hammering mechanism is used for hammering the mounting disc.
[0012] A lifting mechanism is arranged on the bottom disc, the lifting mechanism is in transmission connection with the hammering mechanism, and the lifting mechanism is used for lifting the hammering mechanism.
[0013] The connecting structure is arranged between the hammering mechanism and the mounting disc.
[0014] Optionally, a vertical cylinder is coaxially and fixedly connected to the top of the bottom disc, a plurality of guide rails are arranged on the vertical cylinder, the guide rails are in sliding connection with the mounting disc and the hammering mechanism, and the lifting mechanism is arranged in the vertical cylinder.
[0015] Optionally, the mounting disc comprises a first ring body and a plurality of first sliding blocks, the first sliding blocks are fixed to the inner side of the first ring body, and the first sliding blocks are vertically and slidably arranged on the guide rails.
[0016] Optionally, the hammering mechanism comprises a counterweight ring, and the counterweight ring is vertically and slidably arranged on the guide rails.
[0017] Optionally, the counterweight ring comprises a second ring body and a plurality of second sliding blocks, the second sliding blocks are fixed to the inner side of the second ring body, and the second sliding blocks are vertically and slidably arranged on the guide rails.
[0018] Optionally, the lifting mechanism comprises a plurality of lifting parts, the lifting parts are arranged in the vertical cylinder, and the lifting parts correspond to the second sliding blocks in one-to-one correspondence.
[0019] A top cover is coaxially and fixedly connected to the top of the vertical cylinder, and a through hole is arranged in the middle of the top cover.
[0020] Optionally, the pulling part comprises a first pulley, a second pulley and a pulling rope, the first pulley is rotationally arranged at the bottom of the top cover, the second pulley is rotationally arranged at the bottom of the vertical cylinder, one end of the pulling rope is fixed with the second sliding block after being sequentially arranged through the second pulley and the first pulley, the other end of the pulling rope passes through the through hole.
[0021] The one end of the pulling rope passing through the through hole is fixed as a strand.
[0022] Optionally, the edge of the through hole is provided with a circular arc transition surface.
[0023] Optionally, the sampling assembly comprises a plurality of sampling parts which are coaxially fixed in sequence, the sampling part at the top is rotationally matched with the mounting disc, and the sampling part at the bottom is fixed with a ring cutter.
[0024] The sampling part comprises a sampling cup, the top of the sampling cup is coaxially fixedly connected with a threaded concave ring, the bottom of the sampling cup is coaxially fixedly connected with a threaded convex ring, the threaded concave ring at the top of the sampling cup at the top is connected with a movable end of a rotary connecting ring, the fixed end of the rotary connecting ring is fixedly connected with the mounting disc, and the threaded convex ring at the bottom of the sampling cup at the bottom is threadedly fixed with the ring cutter.
[0025] The threaded convex ring of the sampling part in front is threadedly fixed with the threaded concave ring of the sampling part behind.
[0026] Optionally, the rotary connecting ring comprises a ring seat, the ring seat is fixed at the bottom of the mounting disc, the ring seat is rotationally provided with a top end of a rotary ring, the bottom end of the rotary ring is coaxially fixedly connected with a threaded splicing ring, the threaded splicing ring is used for threadedly fixing with the corresponding threaded concave ring, a jackscrew is threadedly connected to one side of the ring seat, one end of the jackscrew is in contact with the side wall of the rotary ring, and the jackscrew is used for fixing the ring seat and the rotary ring.
[0027] Compared with the prior art, the present application has the following advantages and technical effects:
[0028] The device drives several sampling assemblies arranged symmetrically and decreasing in length to penetrate into the soil layer vertically synchronously through the instantaneous impact of the hammering mechanism on the mounting disc, so that the in-situ synchronous layered sampling of multiple different depths can be efficiently and accurately completed at one time, the operation efficiency in the high-cold harsh environment is greatly improved, and the data comparability is extremely strong because the samples of each layer are derived from the same accurate point; the rifling structure arranged in the sampling assembly is induced to rotate during the sinking process, and the sampling assembly is smoothly cut into the compact meadow soil which may be rich in gravel, like a screw, the rotation penetration mode effectively overcomes the great resistance and maximally reduces the extrusion disturbance to the original structure of the soil, and significantly improves the originality and representativeness of the sample; after the sampling is completed, the sampling assembly and the mounting disc are fixed by operating the locking structure, the reverse self-rotation in the lifting process is effectively prevented, and the biting effect formed between the rifling and the soil sample is combined to ensure that the deep loose soil sample will not fall off from the sampling assembly when it is taken out, and the problem of easy loss of the sample is perfectly solved; the connecting structure arranged between the hammering mechanism and the mounting disc can lock the two as a whole after the sampling is completed, the whole sampling system can be stably lifted through the lifting mechanism, the operation process is simple and coherent, the overall structure is stable and reliable, and the comprehensive advantages of the device, such as sampling accuracy, sample integrity and operation convenience, are fully embodied for the special habitat of the high-cold meadow. BRIEF DESCRIPTION OF DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor based on these drawings:
[0030] Figure 1 It is a structural schematic diagram of the present application;
[0031] Figure 2 It is a mounting disc bottom view of the present application;
[0032] Figure 3 It is a counterweight ring structure schematic diagram of the present application;
[0033] Figure 4 It is a vertical cylinder structure schematic diagram of the present application;
[0034] Figure 5 It is a sampling assembly and rotating connection ring structure schematic diagram of the present application;
[0035] Figure 6 It is a lifting mechanism structure schematic diagram of the present application;
[0036] Figure 7 It is a Figure 6A local enlarged view at the middle A;
[0037] Wherein, 1, base plate; 2, sampling hole; 3, sampling assembly; 4, mounting disc; 5, counterweight ring; 6, vertical cylinder; 7, guide rail; 8, top cover; 9, via hole; 10, rotating connecting ring; 11, first pulley; 12, second pulley; 13, pull rope; 301, sampling cup; 302, threaded convex ring; 303, threaded concave ring; 304, ring knife; 401, first ring body; 402, first sliding block; 501, second ring body; 502, second sliding block; 1001, ring seat; 1002, rotating ring; 1003, threaded splicing ring; 1004, jackscrew. DETAILED DESCRIPTION
[0038] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0039] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.
[0040] Reference Figures 1 to 7 The present application discloses a high-cold meadow root layer sampling device, comprising:
[0041] The base plate 1 is vertically slidably arranged on the mounting disc 4, and the base plate 1 and the mounting disc 4 are coaxially arranged.
[0042] The mounting disc 4 is vertically slidably arranged on the base plate 1, and the base plate 1 and the mounting disc 4 are coaxially arranged.
[0043] The sampling assembly 3 is rotationally matched with the mounting disc 4, and the sampling assembly 3 is provided with a rifling.
[0044] The hammering mechanism is vertically slidably arranged on the base plate 1, and the hammering mechanism is located above the mounting disc 4.
[0045] The lifting mechanism is arranged on the base plate 1, and the lifting mechanism is drivingly matched with the hammering mechanism.
[0046] The connecting structure is arranged between the hammering mechanism and the mounting disc 4.
[0047] In use, after the site selection and positioning of the field operation point are completed, the chassis 1 is stably placed on the alpine meadow surface to be sampled, ensuring that the several sampling holes 2 thereon are aligned with the target positions. Subsequently, the lifting mechanism is operated, which is in transmission cooperation with the hammering mechanism, to lift the hammering mechanism to a certain height for potential energy accumulation. After preparation, the hammering mechanism is released, which freely falls along the vertical path under the action of gravity, and violently hammers the mounting disc 4 below. This impact force is instantaneously transmitted to the several sampling groups on the mounting disc 4. Each sampling group contains several sampling assemblies 3 with lengths gradually decreasing, which are synchronously and vertically driven into the meadow soil layer by the corresponding sampling holes 2 on the chassis 1 under the impact kinetic energy. Since the sampling assembly 3 is in rotational cooperation with the mounting disc 4, the sampling assembly 3 is provided with rifling, which is induced to rotate during the penetration into the soil. This rotational movement enables the sampling assembly 3 to more smoothly and less disturb the compact meadow soil, effectively overcoming the resistance and ensuring the sampling depth. After the sampling assembly 3 reaches the preset depth through multiple impacts, the locking structure provided between the sampling assembly 3 and the mounting disc 4 is operated to fix the two, preventing the sampling assembly 3 from rotating during the lifting process, thereby avoiding the soil sample from falling off. Finally, the mounting disc 4 and the hammering mechanism are fixed through the connecting structure, and the mounting disc 4 and the hammering mechanism are lifted as a whole through the lifting mechanism, so that each sampling assembly 3 is pulled out of the soil layer, and a layered sampling operation is completed.
[0048] The device drives the several sampling assemblies 3 arranged symmetrically and with lengths gradually decreasing to synchronously and vertically penetrate into the soil layer through the instantaneous impact of the hammering mechanism on the mounting disc 4, thereby efficiently and accurately completing the in-situ synchronous layered sampling of multiple different depths in one operation, greatly improving the operation efficiency in the harsh alpine environment, and ensuring that each layer of sample is derived from the same accurate point, with strong data comparability. The rifling structure provided in the sampling assembly 3 induces it to rotate during the sinking process, like a screw, which smoothly cuts into the compact meadow soil that may be rich in gravel. This rotational penetration method effectively overcomes the great resistance and maximally reduces the extrusion disturbance to the original structure of the soil, significantly improving the originality and representativeness of the sample. After the sampling is completed, the locking structure is operated to fix the sampling assembly 3 and the mounting disc 4, effectively preventing the reverse rotation during the lifting process. In combination with the biting action formed between the rifling and the soil sample, the deep loose soil sample is prevented from falling off the sampling assembly 3 when taken out, perfectly solving the problem of sample loss. The connecting structure provided between the hammering mechanism and the mounting disc 4 enables the two to be locked as a whole after sampling is completed, and the entire sampling system can be stably lifted through the lifting mechanism. The operation process is simple and coherent, the overall structure is stable and reliable, and the device fully embodies the comprehensive advantages of sampling accuracy, sample integrity, and operation convenience, etc. strengthened for the special habitat of alpine meadow.
[0049] As an optional implementation, the top of the base plate 1 is coaxially fixed with a vertical cylinder 6, a plurality of guide rails 7 are arranged on the vertical cylinder 6, the plurality of guide rails 7 are in sliding fit with the mounting plate 4 and the hammering mechanism, and the lifting mechanism is arranged in the vertical cylinder 6.
[0050] The vertical cylinder 6 coaxially fixed on the top of the base plate 1 is a core support and guide structure. In use, the mounting plate 4 and the hammering mechanism vertically slide along the guide rails 7 on the vertical cylinder 6, which ensures accurate vertical guidance during the impact and penetration process and effectively prevents deviation. The compact structure of the lifting mechanism arranged in the vertical cylinder 6 improves the operation stability. The design significantly enhances the overall rigidity and sampling verticality of the device, ensuring the accuracy of the layered sampling.
[0051] As an optional implementation, the mounting plate 4 includes a first ring body 401 and a plurality of first sliding blocks 402, the first sliding blocks 402 are fixed on the inner side of the first ring body 401, and the first sliding blocks 402 vertically slide with the guide rails 7.
[0052] The mounting plate 4 is composed of the first ring body 401 and a plurality of first sliding blocks 402 fixed on the inner side of the first ring body 401. In use, under the driving of the hammering mechanism, the first sliding blocks 402 vertically slide along the guide rails 7 on the vertical cylinder 6, driving the first ring body 401 and the sampling assembly 3 below it to smoothly descend.
[0053] As an optional implementation, the hammering mechanism includes a counterweight ring 5, and the counterweight ring 5 is in vertical sliding fit with the guide rails 7.
[0054] As an optional implementation, the counterweight ring 5 includes a second ring body 501 and a plurality of second sliding blocks 502, the second sliding blocks 502 are fixed on the inner side of the second ring body 501, and the second sliding blocks 502 vertically slide with the guide rails 7.
[0055] The hammering mechanism is composed of the counterweight ring 5, which is in vertical sliding fit with the guide rails 7 on the vertical cylinder 6 through the second sliding blocks 502 fixed on the inner side of the second ring body 501. In use, the lifted counterweight ring 5 vertically falls along the guide rails 7, and the impact kinetic energy generated by the mass is smoothly transmitted to the mounting plate 4 below through the accurate guidance of the second sliding blocks 502 and the guide rails 7.
[0056] The connection structure is a buckle, which is used to buckle the mounting plate 4 and the counterweight ring 5 to form a complete whole. The buckle has a fixed end and a movable end. The fixed end of the buckle is fixedly connected with the counterweight ring 5, and the movable end of the buckle is hingedly connected with the mounting plate 4.
[0057] As an optional implementation, the lifting mechanism includes a plurality of lifting parts, the lifting parts are arranged in the vertical cylinder 6, and the plurality of lifting parts correspond one-to-one to the plurality of second sliding blocks 502.
[0058] It also includes a top cover 8 coaxially fixed on the top of the vertical cylinder 6, and a through hole 9 is arranged in the middle of the top cover 8.
[0059] As an optional embodiment, the lifting part comprises a first pulley 11, a second pulley 12 and a pull rope 13, the first pulley 11 is rotationally arranged at the bottom of the top cover 8, the second pulley 12 is rotationally arranged at the bottom of the vertical cylinder 6, one end of the pull rope 13 is fixed with the second sliding block 502 after being wound through the second pulley 12 and the first pulley 11 in turn, and the other end of the pull rope 13 passes through the through hole 9.
[0060] The one end of the pull rope 13 passing through the through hole 9 is fixed as a strand.
[0061] Each lifting part is composed of a first pulley 11, a second pulley 12 and a pull rope 13, wherein the first pulley 11 is rotationally arranged at the bottom of the top cover 8, the second pulley 12 is rotationally arranged at the bottom of the vertical cylinder 6, and one end of the pull rope 13 is fixed with the second sliding block 502 of the hammer mechanism after being wound through the second pulley 12 and the first pulley 11 in turn. When operating, the other end of the pull rope 13 passing through the through hole 9 in the middle of the top cover 8 is forced, and these ends have been fixed as a strand. The pull rope 13 changes the direction of force through the fixed pulley system composed of the first pulley 11 and the second pulley 12, converts the horizontal or inclined pulling force exerted by the operator into vertical lifting force, and smoothly lifts the counterweight ring 5 along the guide rail 7 to accumulate potential energy. After being ready, the pull rope 13 is released, and the counterweight ring 5 freely falls under the action of gravity to complete the impact. The pulley block structure greatly saves labor, enabling the operator to easily lift the heavy counterweight ring 5, especially suitable for manual operation in high-altitude areas; all pull ropes 13 are concentrated and combined as a strand through the through hole 9 of the top cover 8, which makes the operation single, avoids the complexity and asynchronous risk of multiple ropes, and improves the convenience and safety of operation; the first pulley 11 and the second pulley 12 are built-in in the vertical cylinder 6, making the structure compact, effectively protecting the ropes and pulleys from external environmental interference or damage, and ensuring the reliability of transmission. The whole lifting process is smooth, labor-saving and accurate in guidance, providing stable and reliable power preparation for subsequent impact sampling.
[0062] As an optional embodiment, a circular arc transition surface is arranged at the edge of the through hole 9.
[0063] The circular arc transition surface at the edge of the through hole 9 effectively reduces the friction loss of the pull rope 13 during lifting and releasing, ensuring smooth operation and prolonging the service life of the rope.
[0064] As an optional embodiment, the sampling assembly 3 comprises a plurality of sampling parts fixed coaxially in turn, the sampling part at the top is rotationally matched with the mounting disc 4, and the sampling part at the bottom is fixed with the annular cutter 304.
[0065] The sampling part includes a sampling cup 301, a threaded concave ring 303 coaxially fixed at the top of the sampling cup 301, and a threaded convex ring 302 coaxially fixed at the bottom of the sampling cup 301. The threaded concave ring 303 at the top of the sampling cup 301 is connected with the movable end of the rotating connecting ring 10, the fixed end of the rotating connecting ring 10 is fixed with the mounting disc 4, and the threaded convex ring 302 at the bottom of the sampling cup 301 is fixed with the ring knife 304.
[0066] The threaded convex ring 302 of the previous sampling part is fixed with the threaded concave ring 303 of the subsequent sampling part.
[0067] The sampling assembly 3 adopts a modular design, and is formed by a plurality of sampling parts which are coaxially and threadedly fixed in series through the threaded concave ring 303 at the top and the threaded convex ring 302 at the bottom, so as to realize flexible combination of the sampling length to adapt to different depth requirements. The sampling part at the top is connected with the movable end of the rotating connecting ring 10 through the threaded concave ring 303, and the fixed end of the rotating connecting ring 10 is fixed with the mounting disc 4, so that the whole sampling assembly 3 can rotate freely relative to the mounting disc 4 when subjected to the impact force transmitted by the mounting disc 4. The sampling part at the bottom is fixed with the sharp ring knife 304 through the threaded convex ring 302, and the ring knife 304 is responsible for cutting into the soil. The rifling is arranged on the inner wall of the sampling barrel formed by a plurality of sampling cups 301. When the device impacts and penetrates into the soil layer, the soil acts on the rifling to make the plurality of sampling cups 301 rotate as a whole, so that the ring knife 304 also rotates, which is easy to cut into the soil, effectively reduces the penetration resistance, and maximizes the preservation of the original soil structure. When lifting, the rotating connecting ring 10 makes the sampling assembly 3 and the mounting disc 4 unable to rotate through the locking structure, and can prevent the soil sample from falling under the action of the rifling.
[0068] As an optional embodiment, the rotating connecting ring 10 includes a ring seat 1001 fixed at the bottom of the mounting disc 4, a rotating ring 1002 having a top end rotating with the ring seat 1001, a threaded splicing ring 1003 coaxially fixed at the bottom end of the rotating ring 1002, the threaded splicing ring 1003 being used for threadedly fixing with the corresponding threaded concave ring 303, a top wire 1004 being threadedly connected on one side of the ring seat 1001, one end of the top wire 1004 being in contact with the side wall of the rotating ring 1002, and the top wire 1004 being used for fixing the ring seat 1001 and the rotating ring 1002.
[0069] The rotating connecting ring 10 is a key component for connecting the mounting disc 4 and the sampling assembly 3 and realizing the relative rotation thereof, and the specific structure thereof includes the ring seat 1001 fixed at the bottom of the mounting disc 4, the rotating ring 1002 having a top end rotating with the ring seat 1001, and the threaded splicing ring 1003 coaxially fixed at the bottom end of the rotating ring 1002.
[0070] In the sampling preparation stage, the threaded recess ring 303 of the topmost sampling part is screwed with the threaded splice ring 1003, at this time the top screw 1004 is not fastened, the rotating ring 1002 can rotate freely relative to the ring seat 1001. When the hammer mechanism drives the installation disc 4 to press down, the impact force is transmitted to the rotating ring 1002 through the ring seat 1001, and the resistance of the soil to the cutting ring 304 will force the whole sampling assembly 3 to rotate, the rotating movement is transmitted to the rotating ring 1002 through the threaded recess ring 303 and the threaded splice ring 1003, so that it rotates smoothly in the ring seat 1001, thereby realizing the "self-rotation" effect of the sampling assembly 3 in the penetration process, effectively reducing the resistance. When the sampling reaches the predetermined depth and needs to be pulled up, the operator tightens the top screw 1004 on the side of the ring seat 1001, so that the end tightly abuts against the side wall of the rotating ring 1002, and the ring seat 1001 and the rotating ring 1002 are completely locked by friction, forming a rigid whole. Thereafter, when the installation disc 4 is lifted by the lifting mechanism, the force can be directly transmitted to the sampling assembly 3 through the locked rotating connection ring 10, preventing it from rotating in the opposite direction during the pulling out of the soil layer, ensuring that the soil sample, especially the deep loose soil sample, will not fall off due to the reverse rotation of the sampling tube.
[0071] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0072] The above-described embodiments are only descriptions of the preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.
Claims
1. An alpine meadow root layer sampling device, characterized in that, Include: The chassis (1); The mounting disc (4) is vertically and slidingly arranged on the chassis (1), the chassis (1) is coaxially arranged with the mounting disc (4), the bottom of the mounting disc (4) is connected with a plurality of sampling groups, the sampling groups are symmetrically arranged at the center, each sampling group comprises a plurality of sampling assemblies (3), the sampling assemblies (3) are correspondingly provided with sampling holes (2), the sampling holes (2) are arranged on the chassis (1), and the lengths of the sampling assemblies (3) in the same sampling group are gradually reduced; The sampling assembly (3) is rotationally connected with the mounting disc (4), the sampling assembly (3) is provided with a rifling, and the sampling assembly (3) is provided with a locking structure between the sampling assembly (3) and the mounting disc (4); The hammering mechanism is vertically and slidingly arranged on the chassis (1), the hammering mechanism is located above the mounting disc (4), and the hammering mechanism is used for hammering the mounting disc (4); The lifting mechanism is arranged on the chassis (1), the lifting mechanism is drivingly connected with the hammering mechanism, and the lifting mechanism is used for lifting the hammering mechanism; The hammering mechanism is connected with the mounting disc (4).
2. The alpine meadow root layer sampling device according to claim 1, characterized in that: The top of the chassis (1) is coaxially and fixedly connected with a vertical cylinder (6), a plurality of guide rails (7) are arranged on the vertical cylinder (6), a plurality of guide rails (7) are slidingly connected with the mounting disc (4) and the hammering mechanism, and the lifting mechanism is arranged in the vertical cylinder (6).
3. The alpine meadow root layer sampling device according to claim 2, characterized in that: The mounting disc (4) comprises a first ring body (401) and a plurality of first sliding blocks (402), the first sliding blocks (402) are fixed to the inner side of the first ring body (401), and the first sliding blocks (402) are vertically and slidingly connected with the guide rails (7).
4. The alpine meadow root layer sampling device according to claim 2, characterized in that: The hammering mechanism comprises a counterweight ring (5), and the counterweight ring (5) is vertically and slidingly connected with the guide rails (7).
5. The alpine meadow root layer sampling device according to claim 4, characterized in that: The counterweight ring (5) comprises a second ring body (501) and a plurality of second sliding blocks (502), the second sliding blocks (502) are fixed to the inner side of the second ring body (501), and the second sliding blocks (502) are vertically and slidingly connected with the guide rails (7).
6. The alpine meadow root layer sampling device according to claim 5, characterized in that: The lifting mechanism comprises a plurality of lifting parts, the lifting parts are arranged in the vertical cylinder (6), and a plurality of lifting parts correspond to a plurality of second sliding blocks (502) one by one. It also includes a top cover (8) coaxially fixed to the top of the vertical cylinder (6), and a through hole (9) is arranged in the middle of the top cover (8).
7. The alpine meadow root layer sampling device according to claim 6, characterized in that: The lifting part comprises a first pulley (11), a second pulley (12) and a pull rope (13), the first pulley (11) is rotationally arranged at the bottom of the top cover (8), the second pulley (12) is rotationally arranged at the bottom of the vertical cylinder (6), one end of the pull rope (13) is sequentially wound through the second pulley (12) and the first pulley (11) and fixed with the second sliding block (502), and the other end of the pull rope (13) passes through the through hole (9). The ends of a plurality of pull ropes (13) passing through the through hole (9) are fixed into one.
8. The alpine meadow root layer sampling device according to claim 7, characterized in that: The edge of the through hole (9) is provided with a circular arc transition surface.
9. The alpine meadow root layer sampling device according to claim 1, characterized in that: The sampling assembly (3) comprises a plurality of sampling parts fixed coaxially in sequence, the sampling part at the top is in rotary cooperation with the mounting disc (4), and the sampling part at the bottom is fixed with a ring cutter (304); The sampling part comprises a sampling cup (301), the top of the sampling cup (301) is fixed coaxially with a threaded recessed ring (303), the bottom of the sampling cup (301) is fixed coaxially with a threaded convex ring (302), the threaded recessed ring (303) at the top of the sampling cup (301) at the top is connected with the movable end of a rotary connecting ring (10), the fixed end of the rotary connecting ring (10) is fixed with the mounting disc (4), and the threaded convex ring (302) at the bottom of the sampling cup (301) at the bottom is fixed with the ring cutter (304) in a threaded mode; The threaded convex ring (302) of the sampling part is fixed with the threaded recessed ring (303) of the sampling part in a threaded mode.
10. The alpine meadow root layer sampling device according to claim 9, characterized in that: The rotary connecting ring (10) comprises a ring seat (1001), the ring seat (1001) is fixed at the bottom of the mounting disc (4), the top end of a rotary ring (1002) is rotatable with the ring seat (1001), the bottom end of the rotary ring (1002) is fixed coaxially with a threaded splicing ring (1003), the threaded splicing ring (1003) is used for being fixed with the corresponding threaded recessed ring (303) in a threaded mode, one side of the ring seat (1001) is connected with a jack screw (1004) in a threaded mode, one end of the jack screw (1004) is in contact with the side wall of the rotary ring (1002), and the jack screw (1004) is used for fixing the ring seat (1001) and the rotary ring (1002).