Rotary air drying device for soil detection

Abstract

The invention discloses a rotary air-drying device for soil detection, which comprises a rotary driving mechanism, an airflow circulating mechanism, cloth bags, storage containers and a rack, the rack is provided with a plurality of working sites for horizontally placing the storage containers, each storage container can accommodate the cloth bag filled with a soil sample, and the airflow circulating mechanism is arranged on the rack. The rotary driving mechanism can synchronously drive all the storage containers to rotate, the airflow circulating mechanism can synchronously generate circulating airflow around all the storage containers, the air drying efficiency of batch soil samples can be improved in a multi-station synchronous treatment mode, cleaning and maintenance are convenient, and cross contamination can be eradicated.

Description

Technical Field

[0001] This invention relates to the technical field of soil testing, and in particular to the technical field of soil air-drying devices. Background Technology

[0002] Soil testing is widely used in many important scenarios such as agricultural farmland quality monitoring, environmental pollution source tracing investigation, and geological exploration and analysis. In the field of soil testing, the air-drying treatment of soil samples is a prerequisite for subsequent core links such as component analysis and physicochemical property testing, and the treatment effect directly affects the accuracy and reliability of the test data. In order to improve the efficiency of soil air-drying, most testing institutions use soil air-drying equipment to shorten the soil air-drying time, such as a rapid soil drying and screening device for soil testing with announcement number CN212134266U, a soil air dryer for soil microbial testing with announcement number CN114646195B, and a soil testing impurity removal and pulverizing air dryer with publication number CN113834713A.

[0003] However, mainstream soil drying equipment on the market has many unavoidable shortcomings in practical applications. In terms of processing efficiency, existing equipment generally adopts a single drying station design, which can only dry one soil sample at a time. When facing batch testing tasks, such as multi-point sampling and testing in farmland areas and soil surveys in industrial parks, dozens or even hundreds of soil samples often need to be processed at the same time. The limitations of single-station equipment are particularly prominent, and the work can only be completed by processing one sample at a time (which makes the overall drying process time-consuming, seriously slowing down the progress of subsequent testing and analysis, and failing to meet the actual needs of efficient testing).

[0004] Furthermore, from the perspective of cleaning, maintenance, and safety of use, most of the core components in existing equipment that come into direct contact with soil samples, such as the support tray, mixing components, and inner wall contact plates, are integrated with the main body of the equipment using fixed connections, lacking convenient disassembly designs. During the air-drying process of the soil sample, fine soil particles easily adhere to the surface and crevices of these components, forming stubborn residues. These residual soil particles are not only difficult to remove completely using conventional cleaning methods, but also require a lot of manpower and time due to the complex structure and tight connections of the components. More importantly, if cleaning is not thorough, the residual soil particles will mix with the new soil samples when processing different batches of soil samples, causing cross-contamination, leading to deviations in the test data, and seriously affecting the authenticity and reliability of the test results. At the same time, long-term accumulation of soil residue may also corrode the component materials, shorten the service life of the equipment, and increase equipment maintenance costs and failure rates.

[0005] In summary, existing soil drying equipment has significant shortcomings in terms of batch processing capacity and ease of cleaning, failing to meet the core requirements of modern soil testing for high efficiency, standardization, and cleanliness. Developing a new type of soil drying device that can simultaneously process multiple soil samples, has easily disassembled and cleaned contact parts, and achieves uniform drying results has become an urgent need to overcome current technical bottlenecks. Summary of the Invention

[0006] This invention discloses a rotary air-drying device for soil testing, which can improve the drying efficiency of batch soil samples through multi-station synchronous processing, and is easy to clean and maintain, and can prevent cross-contamination.

[0007] To achieve the above objectives, the present invention proposes a rotary air-drying device for soil testing, comprising a rotary drive mechanism, an airflow circulation mechanism, a cloth bag, a storage container, and a frame. The frame has several working positions for horizontal placement of the storage containers, and each storage container can respectively hold a cloth bag containing a soil sample. The rotary drive mechanism can synchronously drive each storage container to rotate, and the airflow circulation mechanism can synchronously generate circulating airflow around each storage container.

[0008] Preferably, the rotary drive mechanism includes a drive gear, a driven gear, a double-sided toothed belt, a motor, a base shaft, and a shaft gear. The drive gear and the driven gear are rotatably connected to the frame. The double-sided toothed belt is fitted over both the drive gear and the driven gear. The drive gear is driven to rotate by the motor. Each of the storage containers is coaxially mounted with a base shaft carrying a shaft gear. Each storage container can engage its shaft gear with the double-sided toothed belt when placed into any working position.

[0009] Preferably, the frame supports the rotary drive mechanism via a frame plate, and the frame plate has several slits on its top surface for inserting the base shaft as working points.

[0010] Preferably, the shelf is arranged on the shelf groove, and the airflow circulation mechanism can draw air from around each storage container below the shelf groove on the one hand, and spray air towards each storage container above the shelf groove on the other hand.

[0011] Preferably, the airflow circulation mechanism includes a fan, an air duct, and an air hood. The air hood is suspended above the frame groove by a bracket. The air outlet of the fan supplies air to the air hood at multiple points through the air duct, and the air inlet of the fan draws air from the frame groove at multiple points through the air duct.

[0012] Preferably, the rack has an opening on which a filter plate is installed, and the rack delivers filtered air to the fan through the filter plate.

[0013] Preferably, a limiting mechanism is also included, which can restrict each root shaft within its respective cut.

[0014] Preferably, the limiting mechanism includes a base rod, baffles, a base block, and fasteners. The base rod has baffles that correspond one-to-one with each cut. The base block is fixed on the frame plate. The base rod can be detachably connected to the base block by fasteners, and each baffle can block the corresponding base shaft from moving upward along the cut.

[0015] Preferably, the storage container includes a storage tube and a storage cover, wherein the storage tube has through holes evenly distributed on its wall and the opening of the tube is detachably opened and closed by the storage cover.

[0016] Preferably, the storage container further includes push plates, with several push plates arranged obliquely around the inner wall of the storage cylinder.

[0017] The beneficial effects of this invention are: 1) Multi-station synchronous operation significantly improves batch processing efficiency: This invention, through the design of multiple working points on the frame and the coordinated operation of the core mechanism, completely solves the limitations of the single working point of existing equipment, realizing the function of simultaneous air drying of multiple soil samples. Specifically, the top surface of the frame plate is provided with several working points for horizontally placing storage containers. With the synchronous action of the rotary drive mechanism and the airflow circulation mechanism, it breaks the inefficient mode of "processing one sample at a time" of traditional equipment. In the rotary drive mechanism, the motor drives the active gear to rotate, and through the double-sided toothed belt, it drives all the storage containers placed in the working points to rotate synchronously, without the need to control each station individually. The airflow circulation mechanism, through the cooperation of the fan, air duct and air cover, forms a circulating airflow above and below the frame slot, and multi-point air intake and air jet synchronously cover all storage containers. This design enables the equipment to process dozens or even hundreds of soil samples at the same time when facing batch testing scenarios such as multi-point sampling in farmland and soil surveys in industrial parks, significantly shortening the overall air drying process time and avoiding the slowdown of subsequent testing and analysis progress due to the air drying process, fully meeting the core demand of modern soil testing for high efficiency. 2) Detachable structural design for convenient cleaning and maintenance while preventing cross-contamination: Addressing the pain points of existing equipment where core contact components are fixedly connected, difficult to clean, and prone to residue and cross-contamination, this device adopts a fully detachable design, achieving convenient cleaning and maintenance and a clean testing process. The storage container consists of a storage cylinder, a storage lid, and a push plate, with the lid and cylinder detachably connected. After sample loading, it can be quickly sealed, and after air drying, the cloth bag can be easily opened and removed. The cloth bag, as the direct carrier of the soil sample, can be removed separately for cleaning or replacement, preventing soil residue from adhering at the source. This design allows all components that may come into contact with soil particles (cloth bag and storage container) to be quickly disassembled, enabling cleaning without complex tools and thoroughly removing soil residue from surfaces and crevices. Simultaneously, the detachable structure effectively avoids cross-contamination during the processing of different batches of soil samples, ensuring the authenticity and reliability of the test data, reducing the corrosion of components by residual soil, extending equipment lifespan, and lowering maintenance costs and failure rates. 3) Coordinated Rotation and Airflow Circulation for Uniform and Efficient Soil Drying: This invention solves the problems of uneven drying and low efficiency in traditional drying equipment through the coordinated design of rotation drive and airflow circulation, ensuring consistent soil drying results. When the rotation drive mechanism rotates the storage container, the push plates arranged obliquely around the inner wall of the storage cylinder continuously act on the cloth bag, causing the bag to fall under gravity after being brought to the top of the cylinder. This continuously agitates the soil sample, preventing localized clumping and incomplete drying. Furthermore, for soil samples with less clumping, the throwing action of the push plates assists in breaking up the clumps, eliminating the need for additional... The soil crushing process involves a closed-loop airflow mechanism: "air intake from below - filtration - air release from above" (air below the rack is filtered to remove impurities before being drawn into the fan, and then sprayed at multiple points through the fan hood to each collection container). The airflow can fully contact the soil sample inside the bag through the evenly distributed holes in the collection cylinder wall. The rotational motion allows different parts of the soil sample to be alternately exposed to the airflow, while the circulating airflow continuously removes moisture from the soil sample. The combined effect of these two processes ensures that all soil samples receive uniform air-drying conditions, avoiding localized over-drying or under-drying, and ensuring the stability of the soil sample's physicochemical properties, providing a reliable sample basis for subsequent component analysis and testing. 4) Stable and reliable structure, convenient operation adaptable to diverse usage scenarios: The structural design of this invention balances stability and operability, ensuring long-term reliable operation while lowering the barrier to entry. The limiting mechanism firmly restricts the base shaft within the cut through a baffle located on the base rod, preventing the container from shifting or prematurely detaching during high-speed rotation, thus ensuring safe operation. The filter plate effectively prevents soil particles from entering the blower, protecting core components from damage. Operationally, precise alignment of the container is not required when placing it into the working position; the shaft gear naturally meshes with the double-sided toothed belt, making the limiting and fixing process simple and efficient. After drying, disassembling the limiting mechanism, removing the container, and replacing the cloth bag are simple and convenient, requiring no professional technicians. This stable, reliable, and easy-to-operate design adapts to the needs of testing institutions of different sizes, enabling rapid deployment for both small-scale laboratory testing and outdoor batch sampling.

[0018] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0019] Figure 1 This is a front view of the rotary air-drying device for soil testing according to the present invention; Figure 2 This is a top view of the rotary drive mechanism of the rotary air-drying device for soil testing of the present invention when it is assembled with the frame trough; Figure 3 This is a top view of the rotary drive mechanism of the rotary air-drying device for soil testing of the present invention being assembled with the storage container. Figure 4 This is a top view of the base shaft, shaft gear, and storage container of the rotary air-drying device for soil testing of the present invention when they are assembled together. Figure 5 This is a front view of the storage container of the rotary air-drying device for soil testing of the present invention when the storage cover is removed; Figure 6 yes Figure 1 An enlarged schematic diagram of point A.

[0020] In the diagram: 1-Rotary drive mechanism, 11-Driving gear, 12-Passive gear, 13-Double-sided toothed belt, 14-Motor, 15-Base shaft, 16-Shaft gear, 2-Airflow circulation mechanism, 21-Fan, 22-Air duct, 23-Air cover, 3-Cloth bag, 4-Storage container, 41-Storage cylinder, 42-Storage cover, 43-Push plate, 5-Frame, 51-Rack slot, 511-Filter plate, 52-Rack plate, 521-Slit, 6-Limiting mechanism, 61-Base rod, 62-Baffle, 63-Base block, 64-Fastener. Detailed Implementation

[0021] See Figures 1 to 6The present invention relates to a rotary air-drying device for soil testing, comprising a rotary drive mechanism 1, an airflow circulation mechanism 2, a cloth bag 3, a storage container 4, and a frame 5. The frame 5 has several working positions for the storage containers 4 to be horizontally placed, and each storage container 4 can respectively hold a cloth bag 3 containing a soil sample. The rotary drive mechanism 1 can synchronously drive each storage container 4 to rotate, and the airflow circulation mechanism 2 can synchronously generate circulating airflow around each storage container 4. The cloth bag 3 can be made of a breathable fabric (such as non-woven fabric).

[0022] The rotary drive mechanism 1 includes a drive gear 11, a driven gear 12, a double-sided toothed belt 13, a motor 14, a base shaft 15, and a shaft gear 16. The drive gear 11 and the driven gear 12 are rotatably connected to the frame 5. The double-sided toothed belt 13 is fitted over both the drive gear 11 and the driven gear 12. The drive gear 11 is driven to rotate by the motor 14. Each of the storage containers 4 is coaxially mounted with a base shaft 15 carrying a shaft gear 16. Each storage container 4 can engage the shaft gear 16 with the double-sided toothed belt 13 when placed into any working position.

[0023] The frame 5 supports the rotary drive mechanism 1 via the frame plate 52. The frame plate 52 has several cuts 521 on its top surface, which can be inserted into the base shaft 15 as working points.

[0024] The shelf 52 is arranged on the shelf groove 51. The airflow circulation mechanism 2 can draw air from around each storage container 4 below the shelf groove 51 and spray air towards each storage container 4 above the shelf groove 51.

[0025] The airflow circulation mechanism 2 includes a fan 21, an air duct 22, and an air cover 23. The air cover 23 is suspended above the frame groove 51 by a bracket. The air outlet of the fan 21 delivers air to the air cover 23 at multiple points through the air duct 22, and the air inlet of the fan 21 draws air from the frame groove 51 at multiple points through the air duct 22.

[0026] The rack 51 has an opening on which a filter plate 511 is installed, and the rack 51 sends filtered air to the fan 21 through the filter plate 511.

[0027] It also includes a limiting mechanism 6, which can restrict each root shaft 15 within its respective cut 521.

[0028] The limiting mechanism 6 includes a base rod 61, baffles 62, a base block 63, and fasteners 64. The base rod 61 is provided with baffles 62 that correspond one-to-one with each cut 521. The base block 63 is fixed on the frame plate 52. The base rod 61 can be detachably connected to the base block 63 by the fasteners 64 (for example, bolts can be used as fasteners 64 and the base rod 61 can be indirectly screwed to the base block 63). Each baffle 62 is used to block the corresponding base shaft 15 from moving upward along the cut 521.

[0029] The storage container 4 includes a storage tube 41 and a storage cover 42. The storage tube 41 has through holes evenly distributed on its wall and the opening is detachably opened and closed by the storage cover 42 (for example, the storage tube 41 and the storage cover 42 can be connected by a threaded connection).

[0030] The storage container 4 also includes push plates 43, and several push plates 43 are arranged obliquely around the inner wall of the storage tube 41. In order to facilitate the throwing of the cloth bag 3 in the storage container 4, the cloth bag 3 can be designed as a long strip with a smaller diameter than the storage tube 41.

[0031] Working process of this invention: When using it, first put the soil sample into the cloth bag 3 and seal it (it is best to crush the soil sample before putting it into the bag), and then put the cloth bag 3 containing the soil sample into the storage container 4; then, place each of the completed storage containers 4 at each working point (so that the base shaft 15 is mounted on the frame plate 52 along the cut 521, and the shaft gear 16 meshes with the double-sided toothed belt 13); in addition, in order to prevent the storage container 4 from falling out in advance, the base rod 61 can be fixed on the base block 63 by fasteners 64, so that the baffles 62 located on the base rod 61 can limit the position of each base shaft 15.

[0032] During operation, the motor 14 drives the active gear 11 to rotate, which in turn drives the double-sided toothed belt 13 to rotate under the cooperation of the passive gear 12. Each collection container 4 can rotate under the drive of the double-sided toothed belt 13 through the shaft gear 16. At the same time, the airflow circulation mechanism 2 can accelerate the drying of each rotating soil sample by circulating air around each collection container 4. Specifically, the air around each collection container 4 can first flow downwards in multiple points to be filtered by the filter plate 511 (to prevent soil particles from entering the blower 21), and then sprayed back to the collection container 4 in multiple points from the air cover 23 along the air duct 22. In addition, the cloth bag 3 containing the soil sample can be continuously moved to the top of the cavity of the collection cylinder 41 by the push plate 43 during rotation, and then fall back to the bottom of the cavity under the action of gravity, thereby assisting in the breaking of the soil sample (for soil samples with a light degree of agglomeration, this can save the soil breaking step to a certain extent).

[0033] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A rotary air-drying device for soil testing, characterized in that: It includes a rotary drive mechanism (1), an airflow circulation mechanism (2), a cloth bag (3), a storage container (4), and a frame (5). The frame (5) has several working positions for the storage containers (4) to be placed horizontally. Each storage container (4) can contain a cloth bag (3) containing a soil sample. The rotary drive mechanism (1) can synchronously drive each storage container (4) to rotate. The airflow circulation mechanism (2) can synchronously generate circulating airflow around each storage container (4).

2. The rotary air-drying device for soil testing as described in claim 1, characterized in that: The rotary drive mechanism (1) includes a drive gear (11), a driven gear (12), a double-sided toothed belt (13), a motor (14), a base shaft (15), and a shaft gear (16). The drive gear (11) and the driven gear (12) are rotatably connected to the frame (5). The double-sided toothed belt (13) is fitted over both the drive gear (11) and the driven gear (12). The drive gear (11) is driven to rotate by the motor (14). Each of the storage containers (4) is coaxially mounted with a base shaft (15) carrying a shaft gear (16). Each of the storage containers (4) can engage the shaft gear (16) with the double-sided toothed belt (13) when placed into any working position.

3. The rotary air-drying device for soil testing as described in claim 2, characterized in that: The frame (5) carries the rotary drive mechanism (1) through the frame plate (52). The frame plate (52) has several cuts (521) on its top surface that allow the base shaft (15) to be inserted as working points.

4. The rotary air-drying device for soil testing as described in claim 3, characterized in that: The shelf (52) is arranged on the shelf groove (51), and the airflow circulation mechanism (2) can draw air from the surroundings of each storage container (4) below the shelf groove (51) and spray air towards each storage container (4) above the shelf groove (51).

5. The rotary air-drying device for soil testing as described in claim 4, characterized in that: The airflow circulation mechanism (2) includes a fan (21), a duct (22) and a hood (23). The hood (23) is suspended above the rack slot (51) by a bracket. The air outlet of the fan (21) sends air to the hood (23) through the duct (22) in a multi-point manner. The air inlet of the fan (21) draws air from the rack slot (51) through the duct (22) in a multi-point manner.

6. The rotary air-drying device for soil testing as described in claim 5, characterized in that: The rack (51) has an opening on which a filter plate (511) is installed, and the rack (51) sends filtered air to the fan (21) through the filter plate (511).

7. The rotary air-drying device for soil testing as described in claim 3, characterized in that: It also includes a limiting mechanism (6), which can restrict each root shaft (15) within its respective cut (521).

8. The rotary air-drying device for soil testing as described in claim 7, characterized in that: The limiting mechanism (6) includes a base rod (61), baffles (62), a base block (63), and fasteners (64). The base rod (61) is provided with baffles (62) that correspond one-to-one with each cut (521). The base block (63) is fixed on the frame plate (52). The base rod (61) can be detachably connected to the base block (63) by the fasteners (64) and each baffle (62) blocks the corresponding base shaft (15) from moving upward along the cut (521).

9. The rotary air-drying apparatus for soil testing as described in any one of claims 1 to 8, characterized in that: The storage container (4) includes a storage tube (41) and a storage cover (42). The storage tube (41) has through holes evenly distributed on its wall and the opening of the tube is detachably opened and closed by the storage cover (42).

10. The rotary air-drying device for soil testing as described in claim 9, characterized in that: The storage container (4) also includes push plates (43), and several push plates (43) are arranged obliquely around the inner wall of the storage tube (41).

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