Accurate quantitative analysis device for soil organic matter plant and microorganism source carbon

Abstract

The invention provides a precise quantitative analysis device for soil organic matter plant and microorganism source carbon, and belongs to the technical field of soil environment analysis. The device comprises an analyzer main body, a rotating mechanism arranged at the bottom end of a detection groove and limiting mechanisms mounted on two sides of the detection groove. The rotating mechanism comprises a placing disc, a pressing ring, a driving rod, a transmission assembly and a rotating assembly, and automatic rotation of the detection disc is achieved through linkage of a ratchet wheel, a coil spring, friction transmission and other mechanical structures. The technical problems that in the prior art, soil in a detection disc is manually subjected to shaking pretreatment, the labor intensity is high, the efficiency is low, and the uniformity of the shaking effect is poor are solved. The'putting 'action is automatically converted into centrifugal shaking, so that the sample pretreatment efficiency and uniformity are remarkably improved, and the accuracy and reliability of subsequent carbon source quantitative analysis data are ensured.

Description

Technical Field

[0001] This invention relates to the field of soil environmental analysis technology, and in particular to a device for precise quantitative analysis of soil organic matter plant and microbial carbon. Background Technology

[0002] The core function of the precise quantitative analysis device for plant and microbial carbon in soil organic matter is to accurately trace and quantify the organic carbon in soil samples through integrated physical, chemical, or spectroscopic methods (such as detection modules based on biomarkers or stable isotopes). It can distinguish and accurately calculate the content of carbon components originating from plant residues (such as lignin and cellulose derivatives) and carbon components originating from microorganisms and their metabolites (such as amino sugars and phospholipid fatty acids), thereby providing key data support for assessing soil carbon pool stability, microbial carbon pump function, and soil health status.

[0003] However, existing precision quantitative analysis devices of this type have a significant drawback in practical operation, affecting their analytical efficiency and the stability of results. Specifically, after quantitatively loading the soil sample to be tested into a dedicated testing tray, to ensure that the analyzer obtains a uniform and representative signal in subsequent tests, the soil in the testing tray must first be thoroughly shaken before being stably placed into the testing slot of the analyzer for reading. This step is crucial for obtaining accurate and reliable data. However, when faced with a large number of sample testing tasks, this repetitive shaking and placement operation, which relies on manual intervention, not only greatly increases the labor intensity of the staff but also, due to the uncontrollability of manual operation, makes it difficult to maintain consistent shaking force, duration, and uniformity, inevitably reducing the shaking effect of subsequent samples. This inconsistent pretreatment directly introduces human error, affecting the comparability of data between samples and ultimately limiting the accuracy and efficiency of the device's high-throughput detection. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0006] Therefore, the technical problem to be solved by the present invention is: how to provide an integrated analysis device that can automatically, efficiently and uniformly complete the pretreatment (shaking) of soil samples, so as to eliminate the problems of high labor intensity and poor consistency caused by manual operation, thereby ensuring the accuracy and reliability of data under high-throughput detection.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a device for precise quantitative analysis of soil organic matter plant and microbial carbon, comprising; The analyzer body has a sealing cover rotatably connected to its top end, and a detection groove is provided on the upper surface of the analyzer body, with a detection disk arranged inside the detection groove; The instrument also includes a rotating mechanism installed at the bottom of the detection tank. The rotating mechanism includes a placement plate suspended inside the detection tank. A pressure ring is fixedly connected to the bottom of the placement plate. The bottom of the pressure ring extends into the interior of the analyzer body. The outer side of the pressure ring is supported by an elastic component against the inner wall of the analyzer body. Drive rods are symmetrically installed on the left and right sides of the inner wall of the pressure ring. A transmission component is connected between the two drive rods. A rotating component is connected to the inner side of the transmission component. The rotating component includes a central shaft rotatably connected to the center of the analyzer body. The top end of the central shaft extends to the bottom of the detection tank and is connected to the detection plate via a friction component. It also includes a limiting mechanism that is fixedly installed on the left and right sides of the top of the detection groove.

[0008] As a preferred embodiment of the soil organic matter plant and microbial carbon precise quantitative analysis device of the present invention, wherein: a first rotating cavity is provided inside the main body of the analyzer and directly below the detection groove, the bottom end of the first rotating cavity is connected to a second rotating cavity, a limiting groove is provided on both the left and right sides of the first rotating cavity, and a telescopic groove is provided on the outer side of both limiting grooves.

[0009] In a preferred embodiment of the soil organic matter plant and microbial carbon precision quantification analysis device of the present invention, the bottom end of the pressure ring is telescopically connected to the inner side of the telescopic groove, the elastic component includes support plates fixedly installed on the left and right sides of the outer surface of the pressure ring, the two support plates are respectively slidably connected to the outer sides of the two telescopic grooves, the bottom ends of the two support plates are fixedly connected to telescopic springs, and the bottom ends of the two telescopic springs are fixedly connected to the bottom wall of the telescopic groove.

[0010] As a preferred embodiment of the soil organic matter plant and microbial carbon precise quantitative analysis device of the present invention, the transmission component includes a turntable rotatably connected to the top wall of the first rotating cavity, a hollow rotating ring fixedly connected to the bottom end of the turntable, and two spiral grooves arranged in a circumferential array on the surface of the hollow rotating ring, with an opening at the bottom end of each of the two spiral grooves.

[0011] In a preferred embodiment of the soil organic matter plant and microbial carbon precision quantification analysis device of the present invention, the opposing surfaces of the two drive rods respectively penetrate the two limiting grooves and extend into the first rotating cavity, and the inner ends of the two drive rods are respectively located directly below the two openings.

[0012] As a preferred embodiment of the soil organic matter plant and microbial carbon precise quantitative analysis device of the present invention, the rotating component further includes a rotating shaft fixedly installed at the bottom end of the central shaft. The central shaft is rotatably connected to the center of the first rotating cavity and the second rotating cavity through the rotating shaft. The initial end of a coil spring is fixedly connected to the outer wall of the lower side of the central shaft, and the end of the coil spring is fixedly connected to the inner wall of the second rotating cavity.

[0013] As a preferred embodiment of the soil organic matter plant and microbial carbon precise quantitative analysis device of the present invention, the turntable is hollow at its center, and its inner wall is arranged with a ratchet tooth array; the upper part of the central shaft passes through the hollow rotating ring and the center of the turntable in sequence, and is coaxial with it; the left and right ends of the upper outer surface of the central shaft are symmetrically provided with storage grooves, and each of the two storage grooves is rotatably connected with a pawl adapted to the ratchet tooth. The inner sides of the two pawls are elastically connected to the corresponding storage grooves by bending springs, and the locking ends of the two pawls are inserted into the ratchet teeth that are close to them.

[0014] As a preferred embodiment of the soil organic matter plant and microbial carbon precision quantification analysis device of the present invention, wherein: a connecting groove is provided at the center of the bottom end of the detection disk, a connecting disk adapted to the connecting groove is fixedly installed at the top end of the central shaft, the friction assembly includes an inner friction plate fixedly installed inside the connecting groove, and an outer friction plate fixedly installed inside the connecting disk, wherein the upper surface of the outer friction plate abuts against the bottom surface of the inner friction plate.

[0015] As a preferred embodiment of the soil organic matter plant and microbial carbon precision quantitative analysis device of the present invention, a through groove is provided at the center of the bottom of the placement plate, the inner diameter of the through groove is larger than the outer diameter of the connecting groove, and the connecting plate is coaxially arranged directly below the through groove.

[0016] As a preferred embodiment of the soil organic matter plant and microbial carbon precision quantitative analysis device of the present invention, the limiting mechanism includes fixed plates fixedly installed on the left and right sides of the top of the detection groove. The opposite surfaces of the two fixed plates are provided with sliding grooves. The interior of the two sliding grooves is slidably connected with limiting blocks. The opposite back surfaces of the two limiting blocks are fixedly connected with reset springs, and the other ends of the two reset springs are fixedly connected to the inner wall of the sliding groove. The top of the two limiting blocks is fixedly installed with a toggle block. Both of the limiting blocks have guide slopes on their upper sides and arc grooves at their bottom ends. The top edge of the detection disc is slidably connected to the arc grooves at the bottom of the two limiting blocks.

[0017] The beneficial effects of this invention are: 1. This invention, through ingenious mechanical linkage design, transforms the simple action of "placing the sample in the detection tray" into a series of automated mechanical processes, ultimately driving the detection tray to rotate at high speed and using centrifugal force to evenly disperse the soil. This fundamentally replaces the cumbersome and inefficient traditional method that relies on manual shaking, not only completely liberating staff from repetitive physical labor but also eliminating inconsistencies in force and duration caused by human operation. This ensures high uniformity and repeatability of sample pretreatment quality, laying a reliable foundation for subsequent high-precision carbon source quantification analysis.

[0018] 2. The core of the rotating mechanism of this invention integrates the principles of ratchet and pawl unidirectional transmission, helical groove guidance, coil spring energy storage and release, and friction transmission. Its working process is logically rigorous: when the detection disc is pressed down, the driving rod, in cooperation with the helical groove, converts the linear downward pressure into the forward rotation of the disc and tightens the coil spring to store energy; after release, the spring's rebound force is reliably converted into the reverse rotational kinetic energy of the detection disc through the unidirectional transmission mechanism. After the entire cycle is completed, the mechanism automatically resets to the ready-to-trigger state without additional intervention, ensuring stable and reliable operation, making it ideal for high-throughput, continuous detection scenarios.

[0019] 3. The device integrates a limiting mechanism with guiding and resetting functions, which automatically guides and locks the detection tray when it is placed in, and easily unlocks and ejects it when it needs to be removed. This design ensures the absolute stability of the detection tray during rotation, preventing it from flying out due to centrifugal force, and makes the entire sample loading and unloading process exceptionally smooth and simple. The use of friction drive components ensures effective torque transmission and avoids alignment problems or component wear that may arise from rigid connections, improving the system's durability and fault tolerance. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a three-dimensional view of the analytical device of the present invention in the detection state; Figure 2 This is a perspective view of the detection disk in the detection state after it has been positioned according to the present invention. Figure 3 This is a three-dimensional front sectional view of the detection disc of the present invention connected in the detection slot; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A; Figure 5 This is a three-dimensional structural diagram of the limiting mechanism of the present invention; Figure 6 This is an enlarged three-dimensional structural view of the connection between the rotating mechanism and the main body of the analyzer in this invention; Figure 7 This is a three-dimensional structural diagram of the detection disc of the present invention; Figure 8 This is a three-dimensional front sectional view of the rotating mechanism of the present invention; Figure 9 This is a three-dimensional structural diagram of the drive rod and hollow rotating ring in their initial state according to the present invention; Figure 10 This is a perspective view of the transmission component and the rotating component of the present invention in the connected state; Figure 11 This is a three-dimensional top sectional view of the connection between the central axis and the turntable of the present invention.

[0021] In the picture: 100. Analyzer body; 101. Sealing cover; 102. Detection groove; 103. Detection plate; 103a. Connecting groove; 104. First rotating cavity; 105. Second rotating cavity; 106. Limiting groove; 107. Telescopic groove; 200. Rotating mechanism; 201. Placement tray; 201a. Through groove; 202. Lower pressure ring; 203. Elastic component; 203a. Support plate; 203b. Telescopic spring; 204. Drive rod; 205. Transmission component; 205a. Turntable; 205b. Hollow rotating ring; 205c. Spiral groove; 205d. Opening; 205e. Ratchet tooth; 206. Rotating component; 206a. Central shaft; 206a1. Storage groove; 206b. Rotating shaft; 206c. Coil spring; 206d. Pad; 206e. Bending spring; 206f. Connecting tray; 207. Friction component; 207a. Inner friction plate; 207b. Outer friction plate; 300, Limiting mechanism; 301, Fixing plate; 302, Slide groove; 303, Limiting block; 303a, Guide slope; 303b, Arc groove; 304, Return spring; 305, Toggle block. Detailed Implementation

[0022] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0025] Reference Figures 1-11 This embodiment provides a device for precise quantitative analysis of soil organic matter and plant and microbial carbon, including an analyzer body 100 as the core supporting structure of the device. At the top of the analyzer body 100, an openable and closable sealing cover 101 is rotatably connected. This sealing cover 101 is used to close the device during non-detection periods, serving to prevent dust and protect the internal precision components. The upper surface of the analyzer body 100 is specially provided with a detection groove 102 for placing and fixing a detection container. Inside the detection groove 102 is a detection tray 103 capable of holding a specific amount of soil sample.

[0026] To achieve automated and efficient pretreatment and mixing of soil samples within the testing tray 103, a rotating mechanism 200 is integrated and installed at the bottom of the testing trough 102. The core component of this rotating mechanism 200 includes a placement tray 201 suspended inside the testing trough 102, which directly supports the testing tray 103. A pressure ring 202 is fixedly connected to the bottom of the placement tray 201, extending vertically into the internal cavity of the analyzer body 100. The outer side of the pressure ring 202 is elastically supported by an elastic component 203, which provides cushioning and restoring force for the entire suspension structure. Drive rods 204 are symmetrically fixed on the left and right sides of the inner wall of the pressure ring 202, with the two drive rods 204 positioned opposite each other in the horizontal direction. An indirect transmission relationship is established between the two drive rods 204 via a transmission assembly 205, and the inner side of the transmission assembly 205 is connected to a rotating assembly 206 responsible for the final output rotation. The core of the rotating assembly 206 is a central shaft 206a rotatably connected to the geometric center inside the analyzer body 100. The top end of the central shaft 206a extends upward to the bottom of the detection slot 102, and forms a friction transmission connection with the detection disk 103 above it through a friction assembly 207, which can transmit torque.

[0027] In addition, in order to reliably fix the detection plate 103 during the detection process and prevent it from popping out accidentally, a set of limiting mechanisms 300 are fixedly installed on the left and right sides of the top of the detection slot 102.

[0028] Specifically, the internal structure of the analyzer body 100 is carefully designed. A first rotating cavity 104 is provided directly below the detection slot 102. The bottom end of the first rotating cavity 104 is further connected to a second rotating cavity 105, providing space for the rotating energy storage element. On the left and right side walls of the first rotating cavity 104, a vertical limiting groove 106 is provided. On the outside of these two limiting grooves 106, a vertical telescopic groove 107 is provided respectively.

[0029] The bottom end of the pressure ring 202 is slidably and telescopically connected to the inner side of the telescopic groove 107. The aforementioned elastic component 203 specifically includes support plates 203a fixedly installed on the left and right sides of the outer surface of the pressure ring 202. The two support plates 203a are slidably embedded in the outer tracks of the two telescopic grooves 107. At the bottom end of each support plate 203a, a telescopic spring 203b is fixedly connected. The bottom ends of these two telescopic springs 203b are fixedly connected to the bottom wall of the corresponding telescopic groove 107, thereby providing a continuous upward elastic support force for the pressure ring 202 and its associated components.

[0030] The transmission assembly 205 specifically includes a turntable 205a rotatably connected to the top wall of the first rotating cavity 104 via bearings. A hollow rotating ring 205b is fixedly connected to the center of the bottom end of the turntable 205a. Two specific spiral grooves 205c are symmetrically arrayed on the circumference of the cylindrical surface of the hollow rotating ring 205b. Each of these spiral grooves 205c has an opening 205d at its bottom end for the end of a drive rod to enter.

[0031] The opposite end faces of the two drive rods 204 pass through the two limiting grooves 106 and extend into the internal space of the first rotating cavity 104. In the initial or reset state, the inner ends of the two drive rods 204 are positioned directly below the two openings 205d, preparing for subsequent engagement and driving.

[0032] The rotating assembly 206 also includes a rotating shaft 206b fixedly mounted at the bottom end of the central shaft 206a. The central shaft 206a is rotatably connected to the center position of the first rotating cavity 104 and the second rotating cavity 105 via this rotating shaft 206b. The initial end of a coil spring 206c is fixedly connected to the outer wall of the lower part of the central shaft 206a, while the end of the coil spring 206c is fixedly connected to the inner wall of the second rotating cavity 105, so that the coil spring 206c can be tightened as the central shaft 206a rotates, storing elastic potential energy.

[0033] The turntable 205a has a hollow structure at its center, with ratchet teeth 205e arranged in an array on its inner circumference. The upper part of the central shaft 206a passes through the hollow rotating ring 205b and the central hole of the turntable 205a, maintaining coaxiality with them. Symmetrical storage slots 206a1 are formed at both ends of the outer surface of the upper part of the central shaft 206a. Each of the two storage slots 206a1 is rotatably connected by a pin to a pawl 206d that matches the ratchet teeth 205e. The inner sides of each pawl 206d are elastically connected to the corresponding storage slot 206a1 by a bending spring 206e. Under the elastic force of the bending spring 206e, the engaging ends of the two pawls 206d are pushed outwards, thus stably engaging with the nearest ratchet tooth 205e, forming a one-way transmission mechanism.

[0034] A connecting groove 103a is formed at the center of the bottom end of the detection disk 103. Correspondingly, a connecting disk 206f, whose shape and size are adapted to the connecting groove 103a, is fixedly installed at the top of the central shaft 206a. The friction assembly 207 includes an inner friction plate 207a fixedly installed inside the connecting groove 103a, and an outer friction plate 207b fixedly installed inside the connecting disk 206f. When the detection disk 103 is placed in position, the upper surface of the outer friction plate 207b abuts against the bottom surface of the inner friction plate 207a, transmitting torque through friction.

[0035] A through groove 201a is provided at the center of the bottom of the placement disk 201. The inner diameter of the through groove 201a is larger than the outer diameter of the connecting groove 103a at the bottom of the detection disk 103. The connecting disk 206f is coaxially positioned directly below the through groove 201a. This design ensures that the connecting structure at the bottom of the detection disk 103 can smoothly dock with the driving structure without interference when the disk falls and rotates.

[0036] The limiting mechanism 300 includes fixed plates 301 fixedly installed on the left and right sides of the top of the detection groove 102. Each of the two fixed plates 301 has a sliding groove 302 on its opposite surface, and a limiting block 303 is slidably connected inside each of the two sliding grooves 302. A return spring 304 is fixedly connected to the opposite side of each of the two limiting blocks 303, and the other end of each return spring 304 is fixedly connected to the inner wall of the corresponding sliding groove 302, providing an inward repositioning force for the limiting block 303. A toggle block 305 for easy manual operation is fixedly installed at the top of each of the two limiting blocks 303. A guide slope 303a is machined on the upper side of each of the two limiting blocks 303, and an arc-shaped groove 303b is formed at the bottom end of each. When the detection disc 103 is placed in position, its top edge (or flange) is precisely slidably connected and limited within the arc-shaped groove 303b at the bottom of the two limiting blocks 303, thus being securely locked.

[0037] The overall working principle of this device is as follows: In the initial or preparation state, the detection disc 103 is placed in the detection slot 102. At this time, the telescopic spring 203b is compressed, storing elastic potential energy. The top edge of the detection disc 103 is pressed and confined within the arc-shaped groove 303b below the two limit blocks 303, so that the detection disc 103 is firmly confined in the detection slot 102 and cannot bounce upwards. When it is necessary to remove the detection disc 103, the operator can use the two toggle blocks 305 to push the two limit blocks 303 outwards to release the lock on the detection disc 103. Subsequently, the rebound force stored in the telescopic spring 203b is released, lifting the support plate 203a upwards. The support plate 203a drives the placement disc 201 through the lower pressure ring 202, thereby smoothly lifting the detection disc 103, which is located in the placement disc 201, upwards, making it convenient for the operator to pick up and put down.

[0038] Simultaneously, during the resetting process of the downward pressure ring 202 moving vertically upward, its inner drive rod 204 also moves upward synchronously, and its end eventually moves to the top of the limiting groove 106. Furthermore, during the upward movement of the drive rod 204, its end portion slides into the spiral groove 205c through the opening 205d at the bottom of the hollow rotating ring 205b. Due to the guiding effect of the spiral groove 205c, a lateral force is generated when the drive rod 204 moves upward, which drives the hollow rotating ring 205b and the turntable 205a to rotate in the opposite direction. During this reverse rotation, the tooth surface of the ratchet teeth 205e on the inner side of the turntable 205a presses against the meshing pawl 206d, forcing the pawl 206d to overcome the elastic force of the bending spring 206e and retract and slide into the receiving groove 206a1. Due to the unidirectional nature of the pawl 206d, this reverse rotation will not cause the central shaft 206a to rotate; the central shaft 206a and the connected coil spring 206c remain stationary. Ultimately, the drive end of the drive rod 204 can move to the top of the spiral groove 205c, preparing for the forward drive when the detection disc 103 is placed in the next cycle.

[0039] When the staff puts the testing tray 103 containing the soil sample back in, its bottom is vertically aligned with the placement tray 201 in the testing groove 102. During the lowering process, when the lower surface of the top edge of the testing tray 103 contacts the guide slope 303a of the limiting block 303, as the width of the contact surface narrows, the top edge of the testing tray 103 generates an outward squeezing force, pushing the two limiting blocks 303 outward. The limiting blocks 303 then compress their outer return springs 304. The testing tray 103 continues to press down, causing the placement tray 201, the pressing ring 202, and the support plate 203a to move downward together until the support plate 203a abuts against the bottom wall of the telescopic groove 107, and the testing tray 103 reaches its final working position. At this point, the spring force of the return spring 304 pushes the limit block 303 back, and the upper surface of the top edge (or flange) of the detection disk 103 is precisely limited within the arc-shaped groove 303b at the bottom of the limit block 303. This design achieves reliable upward limiting of the detection disk 103, ensuring that the restoring force of the lower telescopic spring 203b will not pop the detection disk 103 out during subsequent rotation operations, thus ensuring operational safety.

[0040] Crucially, during the entire process of the downward vertical movement of the pressure ring 202, the drive rod 204 also moves downward vertically simultaneously. When the end of the drive rod 204 slides downward within the spiral groove 205c, the inclined surface of the spiral groove converts the downward vertical motion into a lateral force that drives the hollow rotating ring 205b to rotate forward. The hollow rotating ring 205b drives the turntable 205a and its inner ratchet teeth 205e to rotate forward together. At this time, the forward rotating tooth surface of the ratchet teeth 205e meshes with the working surface of the pawl 206d, thereby pushing the pawl 206d. The pawl 206d transmits torque to the central shaft 206a through its shaft, forcing the central shaft 206a to start rotating. The rotation of the central shaft 206a causes the coil spring 206c connected to its bottom end to be tightened, gradually storing the reverse rotational elastic potential energy. When the drive rod 204 is completely removed from the opening 205d at the bottom of the spiral groove 205c, it disengages from the hollow rotating ring 205b and no longer obstructs any subsequent rotation. At this time, the coil spring 206c is fully tightened and in an energy-storing state. Simultaneously, the inner friction plate 207a at the bottom of the detection disc 103 and the outer friction plate 207b at the top of the connecting disc 206f are in a tight-fitting state.

[0041] Once the drive rod 204 disengages, the constraint on the rotating system immediately disappears. The elastic potential energy stored in the coil spring 206c is rapidly released, generating a strong reverse rebound torque that drives the central shaft 206a to rotate in the opposite direction at high speed. Due to the unidirectional nature of the ratchet and pawl mechanism, the pawl 206d on the rotating central shaft 206a slides over the back of the ratchet teeth 205e, producing a "click" sound, without driving the turntable 205a and the hollow ring 205b to rotate. This ensures that the position of the opening 205d at the bottom of the hollow ring 205b remains unchanged, preparing for the next cycle. The central shaft 206a then efficiently transmits the rotational torque to the detection disk 103 through the friction assembly 207 (i.e., the mutually pressed inner friction plate 207a and outer friction plate 207b) between the connecting disk 206f and the detection disk 103. The detection disk 103 then rotates rapidly, and the resulting centrifugal force evenly disperses and throws the accumulated soil sample onto the disk wall, thereby achieving a rapid, efficient, and uniform automatic shaking effect. The entire shaking function is extremely simple and efficient to operate. The staff only needs to complete the action of "putting in the test tray". The subsequent pressing, locking, driving, rotating and resetting are all completed automatically by the device, which greatly improves work efficiency and ensures the consistency of pretreatment quality.

[0042] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0043] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0044] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A device for precise quantitative analysis of soil organic matter plant and microbial carbon, characterized in that, include: The analyzer body (100) has a sealing cover (101) rotatably connected to its top end. A detection groove (102) is provided on the upper surface of the analyzer body (100), and a detection disk (103) is provided inside the detection groove (102). And a rotating mechanism (200) installed at the bottom of the detection tank (102), the rotating mechanism (200) including a placement plate (201) suspended inside the detection tank (102), a pressure ring (202) fixedly connected to the bottom end of the placement plate (201), the bottom end of the pressure ring (202) extending into the interior of the analyzer body (100), and the outer side of the pressure ring (202) being supported by an elastic component (203) against the inner wall of the analyzer body (100), the pressure ring (202) Drive rods (204) are symmetrically installed on the left and right sides of the inner wall. A transmission assembly (205) is connected between the two drive rods (204). A rotating assembly (206) is connected to the inner side of the transmission assembly (205). The rotating assembly (206) includes a central shaft (206a) rotatably connected to the center of the analyzer body (100). The top end of the central shaft (206a) extends to the bottom of the detection groove (102) and is connected to the detection disk (103) through a friction assembly (207). It also includes a limiting mechanism (300) fixedly installed on the left and right sides of the top of the detection groove (102).

2. The precise quantitative analysis device for soil organic matter plant and microbial carbon as described in claim 1, characterized in that: The analyzer body (100) has a first rotating cavity (104) located inside and directly below the detection slot (102). The bottom end of the first rotating cavity (104) is connected to a second rotating cavity (105). Limiting slots (106) are provided on both the left and right sides of the first rotating cavity (104), and telescopic slots (107) are provided on the outer sides of both limiting slots (106).

3. The precise quantitative analysis device for soil organic matter plant and microbial carbon as described in claim 2, characterized in that: The bottom end of the pressure ring (202) is telescopically connected to the inner side of the telescopic groove (107). The elastic component (203) includes support plates (203a) fixedly installed on the left and right sides of the outer surface of the pressure ring (202). The two support plates (203a) are slidably connected to the outer sides of the two telescopic grooves (107). The bottom ends of the two support plates (203a) are fixedly connected to telescopic springs (203b), and the bottom ends of the two telescopic springs (203b) are fixedly connected to the bottom wall of the telescopic groove (107).

4. The precise quantitative analysis device for soil organic matter plant and microbial carbon as described in claim 3, characterized in that: The transmission assembly (205) includes a turntable (205a) rotatably connected to the top wall of the first rotating cavity (104). A hollow rotating ring (205b) is fixedly connected to the bottom end of the turntable (205a). The surface of the hollow rotating ring (205b) has two spiral grooves (205c) arranged in a circumferential array. The bottom ends of the two spiral grooves (205c) are each provided with an opening (205d).

5. The precise quantitative analysis device for soil organic matter plant and microbial carbon as described in claim 4, characterized in that: The opposing surfaces of the two drive rods (204) pass through the two limiting grooves (106) and extend into the first rotating cavity (104), and the inner ends of the two drive rods (204) are respectively located directly below the two openings (205d).

6. The precise quantitative analysis device for soil organic matter plant and microbial carbon as described in claim 5, characterized in that: The rotating assembly (206) further includes a rotating shaft (206b) fixedly installed at the bottom end of the central shaft (206a). The central shaft (206a) is rotatably connected to the center of the first rotating cavity (104) and the second rotating cavity (105) via the rotating shaft (206b). The initial end of a coil spring (206c) is fixedly connected to the outer wall of the lower side of the central shaft (206a), and the end of the coil spring (206c) is fixedly connected to the inner wall of the second rotating cavity (105).

7. The precise quantitative analysis device for soil organic matter plant and microbial carbon as described in claim 6, characterized in that: The turntable (205a) is hollow at its center, and its inner wall is arranged with a circumferential array of ratchet teeth (205e). The upper part of the central shaft (206a) passes through the center of the hollow rotating ring (205b) and the turntable (205a) in sequence, and is coaxial with them. The left and right ends of the upper outer surface of the central shaft (206a) are symmetrically provided with storage grooves (206a1). Each of the two storage grooves (206a1) is rotatably connected with a pawl (206d) that matches the ratchet teeth (205e). The inner sides of the two pawls (206d) are elastically connected to the corresponding storage grooves (206a1) by bending springs (206e), and the snap-fit ​​ends of the two pawls (206d) are inserted into the ratchet teeth (205e) that are close to them.

8. The precise quantitative analysis device for soil organic matter plant and microbial carbon as described in claim 7, characterized in that: A connecting groove (103a) is provided at the center of the bottom end of the detection disk (103). A connecting disk (206f) adapted to the connecting groove (103a) is fixedly installed at the top end of the central shaft (206a). The friction assembly (207) includes an inner friction plate (207a) fixedly installed inside the connecting groove (103a) and an outer friction plate (207b) fixedly installed inside the connecting disk (206f). The upper surface of the outer friction plate (207b) abuts against the bottom surface of the inner friction plate (207a).

9. The precise quantitative analysis device for soil organic matter plant and microbial carbon as described in claim 8, characterized in that: A through groove (201a) is provided at the center of the bottom of the placement plate (201). The inner diameter of the through groove (201a) is larger than the outer diameter of the connecting groove (103a), and the connecting plate (206f) is coaxially arranged directly below the through groove (201a).

10. The precise quantitative analysis device for soil organic matter plant and microbial carbon as described in claim 9, characterized in that: The limiting mechanism (300) includes fixed plates (301) fixedly installed on the left and right sides of the top of the detection groove (102). The opposite surfaces of the two fixed plates (301) are provided with sliding grooves (302). The interior of the two sliding grooves (302) is slidably connected with limiting blocks (303). The opposite sides of the two limiting blocks (303) are fixedly connected with return springs (304), and the other end of the two return springs (304) is fixedly connected to the inner wall of the sliding groove (302). The top of the two limiting blocks (303) is fixedly installed with a toggle block (305). The upper side of each of the two limiting blocks (303) is provided with a guide slope (303a), and the bottom end of each of the two limiting blocks (303) is provided with an arc groove (303b). The top edge of the detection disk (103) is slidably connected in the arc groove (303b) at the bottom of the two limiting blocks (303).

Images