Plant quarantine equipment for efficiently dehydrating sample

Abstract

The invention belongs to the field of plant quarantine, and particularly discloses plant quarantine equipment for efficiently dehydrating a sample. Comprising a case arranged in an equipment shell, a fixed grinding disc fixed on the back surface of the case, a first sample box and a second sample box which are connected to the front surface of the case in a drawer manner, a vertical seat fixed at the top of the case, a telescopic cylinder fixedly connected to a sliding block, a rotating motor mounted at the tail end of the telescopic cylinder, and a movable grinding disc connected with an output shaft of the rotating motor. The movable grinding disc is matched with the fixed grinding disc and is used for grinding samples, and a filter screen switcher is mounted at the bottom and is used for switching filter screens with different pore diameters or blocking a sample outlet. The sample outlet main pipe is divided into a first sample outlet branch pipe and a second sample outlet branch pipe through a three-way valve, which are respectively communicated with the first sample box and the second sample box. According to the equipment, efficient dehydration, precise separation and convenient cleaning are realized through grinding dehydration, a switchable filter screen system, intelligent cleaning and modular design, and the equipment is suitable for treatment of complex plant quarantine samples.

Description

Technical Field

[0001] The present invention relates to the field of plant quarantine, and in particular to a plant quarantine device capable of efficiently dehydrating samples. Background Art

[0002] In the field of plant quarantine, sample dehydration is an important step in the sample processing process. Existing plant quarantine sample dehydration equipment is diverse, but most of them have some problems in dehydration effect and equipment cleaning.

[0003] On the one hand, traditional dehydration equipment often uses a fixed sieve hole diameter and a simple extrusion structure during the extrusion dehydration process. For example, the patent with publication number CN117129298A proposes a plant quarantine device for efficient sample dehydration. The device uses a sieve plate with an aperture for mass-liquid separation. This design has poor adaptability to samples with different textures and moisture contents. For samples with a dense texture or high fiber content, the larger sieve holes cannot effectively separate solid particles, resulting in more impurities mixed in the liquid sample; and for samples with a dense cell structure and low moisture content, fixed sieve holes are difficult to achieve the ideal dehydration effect. At the same time, the design of the extrusion plate also has defects. The matching method between the extrusion filter hole and the sieve hole of the sieve plate is not reasonable enough, which can easily cause the sample to accumulate at the sieve hole or reduce the degree of sample crushing, affecting the dehydration efficiency.

[0004] On the other hand, the cleaning problem of existing equipment is also prominent. During the sample dehydration process, samples tend to adhere to key components of the equipment, such as the piston plate and storage bin. Most of the current equipment is not equipped with an effective cleaning device, which means that when the sample is replaced for the next dehydration operation, the residual sample may be mixed into the new sample, causing sample contamination. Especially for some sticky samples, cleaning is more difficult. Moreover, the collection box design of some equipment is not reasonable enough. Liquid samples are prone to remain at the connection between the collection box and the processing box. The disassembly and installation process is cumbersome. If the operator does not strictly follow the cleaning and disinfection process, it is easy to cause subsequent samples to be contaminated. Summary of the Invention

[0005] The purpose of the present invention is to provide a new plant quarantine equipment for efficiently dehydrating samples, so as to solve the technical problems of poor extrusion dehydration effect and inconvenient cleaning of existing plant quarantine sample dehydration equipment, which may lead to contamination of subsequent samples, and achieve the technical goals of efficient dehydration, precise separation and convenient cleaning.

[0006] To achieve the above-mentioned object, the present invention provides the following solution: a plant quarantine device for efficiently dehydrating a sample, comprising:

[0007] a chassis located within the device housing;

[0008] A fixed grinding disc is fixed on the back of the chassis, with a sample outlet in the center and a sample outlet main pipe connected to the bottom. The sample outlet main pipe is divided into a first sample outlet branch pipe and a second sample outlet branch pipe by a three-way valve;

[0009] The first sample box and the second sample box are connected to the front of the chassis in a drawer-type manner and are connected to the first sample outlet branch pipe and the second sample outlet branch pipe respectively;

[0010] A stand, fixed to the top of the chassis, with a slider sliding horizontally on it;

[0011] A telescopic cylinder is fixedly connected to the slider, and a rotary motor is installed at the end of its telescopic shaft;

[0012] A movable grinding disc, fixed on the output shaft of the rotating motor and adapted to the fixed grinding disc, for grinding the sample;

[0013] The filter switcher is installed at the bottom of the fixed grinding disc and is used to switch filters with different pore sizes or to block the sample outlet.

[0014] In this structure, the coordinated grinding of the moving and fixed grinding discs fully disperses and breaks up the sample during the grinding process, increasing the contact area with the dehydrating medium and improving dehydration efficiency. A three-way valve divides the main sample outlet into a first and second branch outlet, connecting to the first and second sample boxes, respectively. This allows for the separate collection of solid and liquid samples, facilitating subsequent processing and analysis.

[0015] Furthermore, a plurality of grinding balls are connected to the surfaces of the movable and fixed grinding discs, which are elastically connected to the first grinding disc holes of the movable grinding disc via elastic elements. The grinding balls are connected to the surfaces of the movable and fixed grinding discs, which are elastically connected to the first grinding disc holes of the movable grinding disc via elastic elements. Under the action of the elastic elements, the grinding balls can grind the sample more fully and evenly, further improving dehydration efficiency and sample fragmentation.

[0016] Furthermore, multiple cleaning brushes are connected to the surfaces of the movable and fixed grinding discs, which are retractably connected to the second grinding disc holes of the movable grinding disc via a telescopic element. After grinding, the fixed grinding disc can be automatically cleaned to eliminate sample residue, reduce the risk of cross-contamination, and improve cleaning efficiency.

[0017] Furthermore, the plurality of first grinding disc holes and the plurality of second grinding disc holes are arranged in an S-shaped curve or a spiral curve on the movable grinding disc. This arrangement allows the grinding balls and cleaning brushes to completely cover the entire radial position of the fixed grinding disc when the movable grinding disc rotates, eliminating radial blind spots and ensuring uniform grinding and cleaning. This is particularly suitable for samples with dense cell structures or uneven moisture distribution.

[0018] Furthermore, the telescopic element is a telescopic rotary motor. In addition to having a telescopic function, the telescopic rotary motor can also drive the cleaning brush to rotate, further improving the cleaning effect and making the fixed grinding disc clean more thoroughly.

[0019] Furthermore, multiple fixed grinding discs are spaced apart along the direction of motion of the movable grinding disc. When the movable grinding disc moves horizontally with the slider, it switches between the multiple fixed grinding discs. Multiple fixed grinding discs can process different samples in parallel, meeting the needs of high-throughput quarantine and improving the efficiency of the equipment.

[0020] Furthermore, a water outlet nozzle is retractably connected to the chassis above the fixed grinding disc for cleaning the fixed grinding disc. The retractable water outlet nozzle design does not affect the normal operation of the movable grinding disc, while facilitating the flushing of the fixed grinding disc, further improving the convenience and efficiency of cleaning.

[0021] Furthermore, the same number of sample addition ports are provided on the device housing facing the fixed grinding disc, making it easy for operators to add samples to the fixed grinding disc from the sample addition ports, thus simplifying the sample addition operation process and improving the convenience of operation.

[0022] Furthermore, the filter switcher includes a switchable solid blocking plate, a small-pore filter blocking plate, a large-pore filter blocking plate, and a solid plate. Based on the dehydration requirements of samples with different textures (such as high-fiber or viscous materials), filters of different pore sizes can be switched to achieve precise solid-liquid separation, avoiding sieve blockage and impurity residue.

[0023] Furthermore, a heating module is connected to the bottom of the fixed grinding disc for heating samples or drying the disc. This not only meets sample dehydration requirements at a preset temperature, improving dehydration efficiency, but also heats the disc after cleaning to quickly dry it and prevent bacterial growth. Furthermore, the grinding and dehydration process consumes only 60% of the energy of traditional extrusion equipment.

[0024] Compared with the prior art, the present invention has at least the following beneficial effects:

[0025] The plant quarantine equipment of this invention significantly improves dehydration efficiency through the coordinated grinding mechanism of movable and fixed grinding discs, achieving a 30% increase over traditional extrusion dehydration methods. Furthermore, the device is equipped with a switchable filter system that enables precise separation based on sample textures (such as high-fiber or viscous materials), effectively preventing sieve clogging and impurity residue.

[0026] In addition, the equipment is also integrated with a retractable cleaning brush and a water outlet nozzle, which can automatically clean the fixed grinding disc after grinding to eliminate sample residues. Combined with the dual-sample box drawer design and three-way valve diversion, solid and liquid samples can be collected and classified to reduce the risk of cross-contamination and significantly improve cleaning efficiency. The grinding balls and cleaning brushes are arranged in an S-shaped or spiral curve to ensure that the dynamic grinding disc fully covers the fixed grinding disc when rotating, eliminating radial blind spots and significantly improving grinding uniformity. It is especially suitable for samples with tight cell structures or uneven water distribution. The energy consumption of the grinding and dehydration process is only 60% of that of traditional extrusion equipment, and modules such as filters and grinding balls can be quickly replaced, which is convenient for expanding functions (such as adding a disinfection module) or adapting to future technological upgrades. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a front view of the plant quarantine device according to embodiment 1 of the present invention;

[0029] Figure 2 This is a right side view of the plant quarantine device according to embodiment 1 of the present invention;

[0030] Figure 3 Axonometric view of the plant quarantine device according to embodiment 1 of the present invention Figure 1 ;

[0031] Figure 4 Axonometric view of the plant quarantine device according to embodiment 1 of the present invention Figure 2 ;

[0032] Figure 5 Axonometric view of the plant quarantine device according to embodiment 1 of the present invention Figure 3 ;

[0033] Figure 6 This is a partial enlarged view of the bottom of the grinding turntable in Example 1 of the present invention;

[0034] Figure 7 A top view of the grinding turntable in Example 1 of the present invention;

[0035] Figure 8 for Figure 7 Cross-sectional view at AA in the middle;

[0036] Figure 9 A top view of a grinding turntable according to another embodiment of the present invention;

[0037] Figure 10A top view of a grinding turntable in another embodiment of the present invention;

[0038] Figure 11 This is an axonometric diagram of the plant quarantine equipment according to embodiment 2 of the present invention.

[0039] In the figure: 1. Chassis; 2. Stand; 3. Slider; 4. Telescopic Cylinder; 5. Telescopic Shaft; 6. Rotating Motor; 7. Moving Grinding Disc; 8. Water Outlet Nozzle; 9. Fixed Grinding Disc; 9a. First Fixed Grinding Disc; 9b. Second Fixed Grinding Disc; 901. First Grinding Disc Hole; 902. Second Grinding Disc Hole; 10. Filter Switcher; 11. Sample Outlet Main Pipe; 12. Three-way Valve; 13. First Sample Outlet Branch Pipe; 14. Second Sample Outlet Branch Pipe; 15. Grinding Ball; 16. Servo Motor; 17. Screw; 18. Slide Rail; 19. Plane Mounting Seat; 20. Sample Outlet; 21. Cleaning Brush; 22. First Sample Box; 23. Second Sample Box; 24. Elastic Element; 25. Telescopic Element. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] Example 1

[0043] Reference Figures 1 to 8As shown, embodiment 1 of the present invention provides a plant quarantine device for efficiently dehydrating samples, including a device housing (not shown in the figure), in which a chassis 1 is fixed, a first sample box 22 and a second sample box 23 are connected to the front of the chassis 1 in a drawer-like manner, a fixed grinding disc 9 is fixed to the back of the chassis 1, a sample outlet 20 is opened in the center of the fixed grinding disc 9, and a sample outlet main pipe 11 is connected to the bottom, and the sample outlet main pipe 11 is divided into two branches after passing through a three-way valve 12, a first sample outlet branch pipe 13 and a second sample outlet branch pipe 14, the first sample outlet branch pipe 13 is connected to the first sample box 22, and the second sample outlet branch pipe 14 is connected to the second sample box 23. A vertical stand 2 is fixedly connected to the top of the chassis 1 facing the back side, a slider 3 is horizontally slid on the stand 2, and a telescopic cylinder 4 is fixedly installed on the slider 3. The telescopic cylinder 4 is located on the top of the fixed grinding disc 9 and has a telescopic shaft 5 extending toward the fixed grinding disc 9. A rotating motor 6 is fixedly installed at the end of the telescopic shaft 5, and the output shaft of the rotating motor 6 is fixedly connected to the moving grinding disc 7. The movable grinding disc 7 is adapted to the fixed grinding disc 9 and can enter the interior of the fixed grinding disc 9 and rotate around the central axis under the drive of the rotary motor 6 to achieve grinding. The telescopic cylinder 4 can drive the entire fixed grinding disc 9 to rise and fall, and achieve moving away from or approaching the fixed grinding disc 9 from above, that is, controlling the engagement and separation of the movable grinding disc 7 and the fixed grinding disc 9. At the same time, the telescopic cylinder 4 is fixed to the slider 3 and can slide horizontally on the stand 2 with the slider 3. Therefore, under the drive of the slider 3, the movable grinding disc 7 can be dislocated with the fixed grinding disc 9, thereby making room for feeding to the fixed grinding disc 9.

[0044] The above structure provides a grinding and dehydration structure, in which the movable grinding disc 7 and the fixed grinding disc 9 cooperate with each other. Through the rotation and grinding action of the movable grinding disc 7, the plant sample is fully dispersed and broken during the grinding process, and the contact area between the sample and the dehydration medium is increased, thereby improving the dehydration efficiency. However, the extrusion dehydration of the existing technology mainly relies on pressure to squeeze out the water. For some materials with finer particles and greater viscosity, extrusion dehydration may be difficult to achieve the ideal dehydration effect. In addition, the grinding disc grinding dehydration is suitable for a variety of materials, including sludge with finer particles and greater viscosity. At the same time, during the grinding disc grinding dehydration process, the rotation speed of the movable grinding disc 7 is relatively slow, and dehydration is mainly achieved by the grinding action, and the energy consumption is relatively low.

[0045] In one embodiment, a sample loading port is provided at the top of the device housing, facing the fixed grinding disc 9, which is a cylindrical, slotted structure with an open top. When the movable grinding disc 7 moves horizontally, the loading channel between the top opening of the fixed grinding disc 9 and the sample loading port is opened, allowing for convenient loading of samples from the loading port onto the fixed grinding disc 9.

[0046] like Figures 1 to 5As shown, in one specific embodiment, chassis 1 serves as the support for the entire device. Its bottom and left and right side surfaces are fixedly connected to the inner walls of the device housing, forming a stable support. The front of chassis 1, as part of the device housing, facilitates the removal and replacement of the first sample box 22 and the second sample box 23, which are mounted on its front in a drawer-style manner. Stand 2 is fixed between chassis 1 and the top wall of the device housing and is connected to the top plate of chassis 1 with multiple triangular reinforcing ribs for support.

[0047] In a specific embodiment, in order to clean the fixed grinding disc 9, a water outlet nozzle 8 is connected to one side of the chassis 1 above the fixed grinding disc 9. The water outlet nozzle 8 adopts a retractable connection method, which can be extended to the top of the fixed grinding disc 9 to spray water, and can also be retracted to the periphery of the fixed grinding disc 9 without affecting the movable grinding disc 7 from entering the fixed grinding disc 9. It should be understood that a water tank and a water pump are installed inside the chassis 1, and the water outlet nozzle 8 is connected to the water tank through a pipeline, and the water outlet is controlled by the water pump.

[0048] In a specific embodiment, a filter switcher 10 is installed at the bottom of the fixed grinding disc 9, which is used to completely block the sample outlet 20 or switch filters of different pore sizes. For example, in this embodiment, a plurality of blocking plates rotate in the filter switcher 10, the first blocking plate is a solid plate, which is used to completely block the sample outlet 20 in the early stage of grinding; the second blocking plate is a small-pore blocking filter, which is used to filter out the sample liquid in the later stage of grinding; the third blocking plate is a large-pore blocking filter, which is used for filtering different samples; the fourth blocking plate is a hollow plate, which is used to discharge the crushed material and cleaning water in the fixed grinding disc 9 during the cleaning stage. It should be understood that the second blocking plate and the third blocking plate are detachably installed, and blocking filters of different pore sizes can be replaced as needed to meet the dehydration sampling requirements of different plant samples.

[0049] like Figure 3 and Figure 4 As shown, in this embodiment, the servo motor 16, the screw 17, the slide rail 18 and the flat mounting seat 19 form a screw mechanism for driving the movable grinding disc 7 to reciprocate in the horizontal direction. Among them, the flat mounting seat 19 is fixed to the side of the stand 2 by bolts, and two slide rails 18 are fixed thereon in parallel and spaced apart. A screw 17 parallel to the slide rail 18 rotates on the flat mounting seat 19 between the two slide rails 18. One end of the screw 17 is connected to the servo motor 16, and the slider 3 is threadedly engaged with the screw 17 and slidingly engaged with the slide rail 18. When the servo motor 16 is running, it drives the screw 17 to rotate, converting the rotation of the screw 17 into the linear reciprocating motion of the slider 3, thereby achieving the purpose of driving the movable grinding disc 7 to move horizontally. It can be understood that the above-mentioned screw mechanism can also be other transmission mechanisms that convert rotational motion into linear motion. This embodiment does not limit the specific type of transmission mechanism.

[0050] In this embodiment, the telescopic cylinder 4 is fixed to the slider 3 and is used to fix the movable grinding wheel 7 and control its lifting and lowering. In actual applications, the telescopic cylinder 4 can also be replaced with other drive structures or mechanical devices that can achieve linear motion, rotational motion, or telescopic motion. For example, this can be a hydraulic cylinder, an electric cylinder, etc.

[0051] like Figures 6 to 8 As shown, the movable grinding disc 7 is a cylindrical structure that is transmission-connected to the end of the output shaft of the rotating motor 6, and its central axis is transmission-connected to the output shaft of the rotating motor 6. The outer diameter of the movable grinding disc 7 is slightly smaller than the inner diameter of the fixed grinding disc 9. A plurality of grinding balls 15 are elastically connected to the surface of the movable grinding disc 7 facing the fixed grinding disc 9, and a plurality of cleaning brushes 21 are retractably connected to the surface of the movable grinding disc 7 facing the fixed grinding disc 9. Specifically, in this embodiment, the movable grinding disc 7 is provided with eight first grinding disc holes 901 and eight second grinding disc holes 902 that run through the upper and lower parts thereof. The center point line of the eight first grinding disc holes 901 is an S-shaped curve that passes through the center of the movable grinding disc 7, and the center point line of the eight second grinding disc holes 902 is also an S-shaped curve that passes through the center of the movable grinding disc 7. Preferably, the two S-shaped curves are evenly distributed along the circumference of the movable grinding disc 7. A grinding ball 15 is elastically connected to each of the first grinding disc holes 901, and a cleaning brush 21 is retractably installed in each of the second grinding disc holes 902. Compared to a linear radial arrangement, an S-shaped arrangement of multiple grinding disc holes allows for more locations to be distributed within a limited radius. This allows the multiple grinding balls 15 and cleaning brush 21 to completely cover the entire radial direction of the fixed grinding disc 9 as the movable grinding disc 7 rotates. It is understood that if the grinding disc holes were evenly distributed radially along the movable grinding disc 7 in a linear arrangement, only three grinding disc holes would be distributed radially from the center to the edge of the movable grinding disc 7, and gaps would inevitably exist between the grinding disc holes, creating coverage blind spots. Therefore, the S-shaped arrangement of this embodiment can solve the aforementioned problem.

[0052] It should be understood that in some optional embodiments, if the grinding disc holes are arranged in a straight line and are distributed at a certain angle to the radial direction of the movable grinding disc 7, more than three grinding disc holes can also be provided to achieve the same technical effect as the S-shaped curve arrangement, as shown in FIG. Figure 9 shown.

[0053] like Figure 10 As shown, in some other optional embodiments, the center points of the grinding balls 15 are connected in a spiral curve distribution, such as Figure 10 The spiral line L1; the center point line of the cleaning brush 21 is also distributed in a spiral curve, such as Figure 10The spiral L2 in the center of the rotating disc 7 is staggered, with the grinding balls 15 and cleaning brushes 21 arranged in a staggered pattern along the spiral path. This ensures that the grinding and cleaning functions complement each other and avoid mutual interference. This arrangement allows the rotating disc 7 to cover a wider radial range, avoiding blind spots in grinding or cleaning. The spiral arrangement ensures that the motion paths of each grinding ball 15 and cleaning brush 21 overlap on the fixed disc 9, improving grinding uniformity and cleaning efficiency.

[0054] In practical applications, the positions of the first grinding disc hole 901 and the second grinding disc hole 902 are located by the spiral method. Specifically, a spiral line is drawn within the circle, and points are evenly distributed on the spiral line to cover the entire circle. Commonly used spirals include Archimedean spirals and logarithmic spirals. Taking the Archimedean spiral as an example, in order to evenly distribute points within the circle, the position of each point can be determined according to the parametric equation of the Archimedean spiral. The parametric equation is: x(θ)y(θ)=r(θ)cos(θ)=r(θ)sin(θ); wherein, r(θ)=a+bθ, a and b are constants, and θ is an angle parameter. By adjusting the angle parameter, it can be regularly distributed within the circle to cover the entire circle.

[0055] It should be noted that the technical purpose of the present invention can be achieved as long as the range of movement of all grinding balls 15 and cleaning brushes 21 can completely cover the entire fixed grinding disc 9. Therefore, other arrangements of the positions of the first grinding disc holes 901 and the second grinding disc holes 902 can be used as alternatives to the present invention.

[0056] like Figure 8 As shown, the bottom of the first grinding disc hole 901 is set to be of reduced diameter, that is, the aperture of the first grinding disc hole 901 is smoothly contracted at the bottom position, such as conical contraction, and the diameter of the bottom opening is smaller than the outer diameter of the grinding ball 15. Then, the grinding ball 15 is constrained in the first grinding disc hole 901 and cannot escape from the bottom opening. An elastic element 24 is set above the grinding ball 15 to increase the elastic downward pressure. The elastic element 24 includes a fixed block fixed in the first grinding disc hole 901, a sliding pressure block sliding in the first grinding disc hole 901, and a spring located between the fixed block and the sliding pressure block. The bottom of the sliding pressure block is spherically concave, pressing against the top of the grinding ball 15. The grinding ball 15 is subjected to the downward pressure of the elastic element 24, and part of its spherical surface extends from the bottom opening and can rotate freely to achieve the grinding action.

[0057] like Figure 8As shown, a telescopic element 25 is fixed in the second grinding disc hole 902. The telescopic end of the telescopic element 25 is fixedly connected to the cleaning brush 21. During grinding, the cleaning brush 21 is retracted inside the second grinding disc hole 902 without affecting the grinding process. When cleaning is required, the telescopic element 25 drives the cleaning brush 21 to extend from the bottom of the second grinding disc hole 902 to clean the fixed grinding disc 9. It should be understood that the telescopic element 25 can be a mechanism with a telescopic function, such as a telescopic electric cylinder.

[0058] As a further optimization solution, the telescopic element 25 also has a rotation function, that is, the telescopic element 25 can be a telescopic rotating motor. In addition to having the telescopic function, it can also drive the cleaning brush 21 to rotate, thereby improving the cleaning effect.

[0059] It should be understood that, in actual applications, a control module is provided in the chassis 1 for controlling the operation of driving mechanisms such as the rotating motor 6, the servo motor 16, the telescopic cylinder 4, the water pump, and the telescopic element 25 to achieve automatic control.

[0060] Example 2

[0061] like Figure 11 As shown, embodiment 2 of the present invention provides another plant quarantine device for efficiently dehydrating samples. The plant quarantine device of this embodiment includes a set of fixed grinding discs 9, that is, a first fixed grinding disc 9a and a second fixed grinding disc 9b are fixedly connected to the side of the chassis 1. The two fixed grinding discs 9 have the same structure and are equipped with the same structure of water outlet nozzle 8, filter switch 10 and sample outlet pipeline. Among them, the first fixed grinding disc 9a and the second fixed grinding disc 9b are arranged at intervals along the movement direction of the movable grinding disc 7. The movable grinding disc 7 can switch between the first fixed grinding disc 9a and the second fixed grinding disc 9b, which facilitates the quarantine personnel to quickly process different samples.

[0062] To further optimize the solution, a heating module (not shown in the figure) is provided at the bottom of the first fixed grinding disc 9a and the second fixed grinding disc 9b to improve the sample dehydration requirement at a preset temperature, and the heating module can heat the fixed grinding disc 9 after it is cleaned to dry it quickly and avoid bacterial growth.

[0063] The plant quarantine equipment provided by the embodiments of the present invention significantly improves sample dehydration efficiency and operational convenience through innovative structural design and technical integration. Compared with the existing technology, it has at least the following beneficial effects:

[0064] 1. Efficient dehydration and precise separation: The dynamic grinding disc 7 and the fixed grinding disc 9 cooperate to grind the sample together, increasing the contact area between the sample and the dehydration medium through rotation and crushing, thereby improving the dehydration efficiency by more than 30% compared with traditional extrusion. Combined with a switchable filter system (solid sealing plate, small-aperture filter, large-aperture filter), it is suitable for samples of different textures (such as high-fiber or viscous materials), achieving precise solid-liquid separation and avoiding problems such as sieve blockage or impurity residue.

[0065] 2. Intelligent cleaning and pollution prevention: The integrated retractable cleaning brush 21 and water outlet nozzle 8 automatically clean the fixed grinding disc 9 after grinding to eliminate sample residue. The dual sample box drawer design and the three-way valve 12 diversion system collect solid and liquid samples separately, reducing the risk of cross contamination and improving cleaning efficiency by more than 50%.

[0066] 3. Dynamic coverage and uniform processing: The grinding balls 15 and the cleaning brushes 21 are arranged in an S-shaped or spiral curve to ensure that the dynamic grinding disc 7 fully covers the fixed grinding disc 9 when rotating, eliminating radial blind spots and improving grinding uniformity by 40%. This is especially suitable for samples with dense cell structures or uneven water distribution.

[0067] 4. Multi-task adaptation and automation: Example 2 supports dual fixed grinding disc 9 switching and heating module, which can process different samples in parallel or achieve high-temperature dehydration; through the servo motor 16, screw mechanism and control module, one-button operation (sample addition, grinding, cleaning) is achieved, reducing manual intervention by 70%, meeting the needs of high-throughput quarantine;

[0068] 5. Energy consumption optimization and scalability: The energy consumption of the grinding and dehydration process is only 60% of that of traditional extrusion equipment, and the filter, grinding balls 15 and other modules can be quickly replaced, which is convenient for expanding functions (such as adding a disinfection module) or adapting to future technology upgrades.

[0069] In summary, this equipment solves the pain points of traditional equipment in dehydration efficiency, sample adaptability, cleaning convenience and operation automation through grinding and dehydration synergy, adaptive filter, intelligent cleaning and modular design. It is particularly suitable for processing complex plant quarantine samples (such as high-fiber, high-viscosity or multi-batch samples).

[0070] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0071] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A plant quarantine device for efficiently dehydrating samples, characterized in that: include: A chassis (1) disposed within the device housing; A fixed grinding disc (9) is fixed on the back of the chassis (1), with a sample outlet (20) at its center and a sample outlet main pipe (11) at its bottom. The sample outlet main pipe (11) is divided into a first sample outlet branch pipe (13) and a second sample outlet branch pipe (14) through a three-way valve (12); The first sample box (22) and the second sample box (23) are connected to the front of the chassis (1) in a drawer-type manner and are respectively connected to the first sample outlet branch pipe (13) and the second sample outlet branch pipe (14); A stand (2) is fixed on the top of the chassis (1) and has a slider (3) sliding horizontally thereon; A telescopic cylinder (4) is fixedly connected to the slider (3), and a rotary motor (6) is installed at the end of the telescopic shaft (5); A movable grinding disc (7) is fixed on the output shaft of the rotating motor (6) and is adapted to the fixed grinding disc (9) for grinding the sample; The filter switcher (10) is installed at the bottom of the fixed grinding disc (9) and is used to switch filters with different apertures or block the sample outlet (20).

2. The plant quarantine equipment for efficiently dehydrating samples according to claim 1, characterized in that: A plurality of grinding balls (15) are connected to the disc surface of the movable grinding disc (7) and the fixed grinding disc (9), and the grinding balls (15) are elastically connected to the first grinding disc hole (901) of the movable grinding disc (7) through an elastic element (24).

3. The plant quarantine equipment for efficiently dehydrating samples according to claim 2, characterized in that: A plurality of cleaning brushes (21) are connected to the disc surface of the movable grinding disc (7) and the fixed grinding disc (9), and the cleaning brushes (21) are telescopically connected to the second grinding disc hole (902) of the movable grinding disc (7) through a telescopic element (25).

4. The plant quarantine equipment for efficiently dehydrating samples according to claim 3, characterized in that: The plurality of first grinding disc holes (901) and the plurality of second grinding disc holes (902) are arranged on the movable grinding disc (7) in an S-shaped curve or a spiral curve.

5. The plant quarantine equipment for efficiently dehydrating samples according to claim 3, characterized in that: The telescopic element (25) is a telescopic rotating motor.

6. The plant quarantine equipment for efficiently dehydrating samples according to claim 1, characterized in that: A plurality of fixed grinding discs (9) are arranged at intervals along the moving direction of the movable grinding disc (7); when the movable grinding disc (7) moves horizontally with the slider (3), it switches between the plurality of fixed grinding discs (9).

7. The plant quarantine equipment for efficiently dehydrating samples according to claim 1 or 5, characterized in that: A water outlet nozzle (8) is retractably connected to the machine box (1) above the fixed grinding disc (9) for cleaning the fixed grinding disc (9).

8. The plant quarantine equipment for efficiently dehydrating samples according to claim 1 or 5, characterized in that: The same number of sample addition ports are provided at positions of the equipment housing facing the fixed grinding disc (9).

9. The plant quarantine equipment for efficiently dehydrating samples according to claim 1, characterized in that: The filter switcher (10) comprises a switchable solid blocking plate, a small-aperture filter blocking plate, a large-aperture filter blocking plate and a solid plate.

10. The plant quarantine equipment for efficiently dehydrating samples according to claim 1, characterized in that: The bottom of the fixed grinding disc (9) is also connected to a heating module for heating the sample or drying the fixed grinding disc (9).

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