Potato seed tuber disinfection treatment device and application

Abstract

This invention relates to the field of agricultural machinery and plant protection technology, and discloses a potato seed tuber disinfection device and its application. The device includes a first outer shell, with an adjustment mechanism inside. The rear end of the first outer shell is connected to a second outer shell via a connecting conveyor belt. The second outer shell contains a squeezing mechanism and a cleaning mechanism. The first outer shell contains a mesh conveyor belt. The adjustment mechanism includes a slide frame. The inner side of the mesh conveyor belt is slidably connected to the outside of the slide frame. A load-bearing shaft is rotatably connected to the inner side of the slide frame. A guide column is fixedly connected to the top of the slide frame, and a connecting frame is fixedly connected to the top of the guide column. The squeezing mechanism effectively removes surface moisture to prevent powder from clumping. The squeezing and cleaning mechanisms are mechanically linked, automatically rinsing the sponge from the inside out when the machine stops and the squeezing is released, preventing residual starch from drying and hardening, thus preventing the sponge from becoming unusable.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery and plant protection technology, specifically to a potato seed tuber disinfection device and its application. Background Technology

[0002] Potatoes typically need to be cut into pieces before planting. To prevent infection and rot at the cut surfaces, seed potatoes need to be sprayed with disinfectant and coated with dry powder. Existing disinfection equipment often uses fixed-frequency water pumps or fixed valves to control the flow rate when spraying the disinfectant. Because the density of seed potatoes transported on the conveyor belt varies randomly, a fixed spray volume cannot adapt to the actual amount of material. This results in uneven spraying and poor disinfection when seed potatoes are densely packed, while in sparsely packed seed potatoes, the disinfectant drips and is wasted.

[0003] Meanwhile, a large amount of starch-containing water seeps out from the cut surface of the seed potato. If this water is not dehydrated before subsequent powdering, the dry powder will adhere to the cut surface and the undamaged outer skin, forming a thick clump. This clumping not only wastes the dry powder but also blocks the buds on the seed potato surface, affecting the germination rate after planting. To remove surface moisture, some equipment uses absorbent sponges for rolling and adsorption. However, while absorbing free water, the sponges also absorb starch sap. When the equipment is used alternately or not in use, the starch remaining inside the sponge dries and hardens as the water evaporates, causing permanent plastic deformation of the sponge structure and rendering it unusable. Existing equipment relies on manual disassembly and cleaning of the absorbent components and lacks a structural design that automatically cleans the starch inside the sponge and maintains its moisture state when the machine is stopped, increasing the cost of use and maintenance. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a potato seed tuber disinfection device and its application, which solves the problems of existing potato disinfection equipment where the spray volume cannot be dynamically adjusted according to the weight of the material, resulting in waste of pesticide solution or insufficient spraying, and the inability of the dehydrated sponge to be automatically cleaned after shutdown, leading to the drying and hardening of internal starch and damage to the sponge.

[0005] The first aspect of this invention provides a potato seed tuber disinfection device. To achieve the above objective, this invention is implemented through the following technical solution:

[0006] A potato seed tuber disinfection device includes an outer shell, an adjustment mechanism inside the outer shell, a second outer shell connected to the rear end of the outer shell via a connecting conveyor belt, a squeezing mechanism inside the second outer shell, a cleaning mechanism inside the second outer shell, and a mesh conveyor belt inside the first outer shell.

[0007] The adjusting mechanism includes a slide, the inner side of the mesh conveyor belt is slidably connected to the outside of the slide, the inner side of the slide is rotatably connected to a load-bearing shaft, the top of the slide is fixedly connected to a guide column, the top of the guide column is fixedly connected to a connecting frame, the top of the connecting frame is rotatably connected to a damper, the top of the damper is rotatably connected to a pry bar, the water inlet pipe of the adjusting mechanism is equipped with a water valve, and the outside of the pry bar passes through a fixing block and is connected to the valve core of the water valve.

[0008] Preferably, the middle part of the pry bar is rotatably connected to the inner wall of the outer casing through a fixing block, and the outer end of the pry bar is rotatably connected to a counterweight.

[0009] Preferably, the extrusion mechanism includes a connecting shaft rotatably connected to the inner wall of the second housing. A rotating handle is provided at the outer end of the connecting shaft. A worm is fixedly connected to the outside of the connecting shaft. A worm wheel is threadedly connected to the outside of the worm. A lead screw is threadedly connected to the inside of the worm wheel. An extrusion disc is fixedly connected to the top of the lead screw. A return spring abuts against the top of the extrusion disc. An extrusion assembly is slidably connected to the outside of the extrusion disc.

[0010] Preferably, the extrusion assembly includes a sliding shell, the interior of which is slidably connected to the exterior of the extrusion disc, and a rotating shaft is provided at the top of the sliding shell, with an extrusion roller rotatably connected inside the rotating shaft.

[0011] Preferably, a guide block is fixedly connected to the outside of the rotating shaft, the guide block is slidably connected to the inside of the outer casing, and a scraper is provided on the outside of the rotating shaft.

[0012] Preferably, the cleaning mechanism includes a water storage cavity, the outer side of which is disposed on the inner side of the outer shell 2. A water inlet pipe is disposed on the top of the water storage cavity. A sealing component is slidably connected inside the water inlet pipe. An outlet pipe is connected to the outside of the water inlet pipe through a pipe. A water suction component is connected to the top of the outlet pipe through a pipe.

[0013] Preferably, the sealing assembly includes a sealing plate one, the sealing plate one being slidably connected to the inside of the inlet pipe, a sliding post one being provided at the top of the inlet pipe, a gravity block being provided at the top of the sliding post one, a sliding post two being provided at the top of the gravity block, a sealing plate two being provided at the top of the sliding post two, the sealing plate two being slidably connected to the inside of the outlet pipe, and a stop block being provided on the outside of the gravity block.

[0014] Preferably, the water absorption assembly includes a water supply sealing shaft, the outer end of which is connected to the top of the water outlet pipe via a pipe. A central roller is rotatably connected inside the water supply sealing shaft. A sealing groove is formed on the outer side of the central roller. A water outlet is formed on the side wall of the central roller. A sponge is slidably connected to the outer side of the central roller. A push spring is provided on the bottom wall of the water storage cavity. A rubber sheet is abutted against the top of the push spring. A telescopic rod is provided on the bottom of the rubber sheet. The bottom of the telescopic rod is located on the bottom wall of the water storage cavity. The telescopic rod is sleeved inside the push spring.

[0015] Preferably, the bottom of the sliding shell is provided with a protective shell, the inside of the protective shell is sleeved on the outside of the lead screw, the outside of the sliding shell is provided with a limit block, the outside of the limit block abuts against the outside of the stop block, the bottom of the rotating shaft is provided with a limit sliding post, the outside of the limit sliding post is slidably connected to the inside of the lead screw.

[0016] The second aspect of the present invention provides an application of the potato seed tuber disinfection device described above in the dynamic spraying disinfection process after potato seed tuber cutting and the surface dehydration process before applying dry powder.

[0017] This invention provides a potato seed tuber disinfection device and its application. It has the following beneficial effects:

[0018] 1. This invention utilizes a lever transmission structure composed of a slide, a pry bar, and a counterweight. The weight of the seed potatoes on the conveyor belt presses down on the slide, causing the pry bar to rotate and adjust the opening of the water valve core. This structure allows the spray volume of the pesticide solution to adaptively match the actual material conveying volume, effectively reducing pesticide waste or insufficient spraying caused by fixed flow rate spraying. Simultaneously, the damper in the transmission link absorbs vibrations caused by sudden changes in material weight, which helps reduce the risk of frequent valve wear and maintains a relatively stable spray volume.

[0019] 2. This invention uses a sponge to absorb water from the surface of the cut seed potatoes. A rotating handle drives a worm gear, worm, and lead screw to move linearly, adjusting the degree of compression and dehydration of the sponge by the extrusion roller. This effectively reduces the probability that the starch and moisture on the seed potato surface will clump together and block the sprouts during subsequent powder application. Furthermore, the extrusion assembly, used in conjunction with a return spring, provides elastic expansion and contraction space for the extrusion action, helping to prevent structural damage to the sponge from excessive, rigid compression.

[0020] 3. This invention utilizes the mechanical linkage between the extrusion mechanism and the cleaning mechanism. When the machine stops and the sliding shell resets to release the sponge compression, a gravity block presses down to synchronously switch the inlet and outlet water channels of the sealing component. This causes the water storage cavity to push the stored water into the central roller and rinse the sponge from the inside out. This linkage design automatically triggers rinsing when the machine stops, which can promptly remove residual starch stains from inside the sponge, preventing the starch from drying and hardening, thus avoiding the sponge becoming unusable. It also ensures that the sponge remains well-moisturized before reuse.

[0021] 4. This invention is applied to the seed potato cutting process in the field of plant protection and pest and weed control. By combining the aforementioned dynamic spraying structure with a dehydration and extrusion mechanism, it not only achieves precise drug delivery and disinfection of the seed potato cut surfaces, cutting off the pathways for soil-borne pathogens to infect the potatoes, but more importantly, by removing free moisture and starch sap from the seed potato surface, it avoids the phenomenon of powder clumping and blocking the seed potato buds during subsequent coating and powdering. Seed potatoes treated by this device have a lower field rot rate after planting, improve the healthy emergence rate of seed potatoes, and provide a reliable seed source treatment guarantee for high and stable potato yields. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a cross-sectional schematic diagram of the outer casing and adjustment mechanism of the present invention;

[0024] Figure 3 This is a schematic diagram of the adjustment mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of the extrusion mechanism and cleaning mechanism of the present invention;

[0026] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 For the present invention Figure 4 Enlarged view of point B in the middle;

[0028] Figure 7 For the present invention Figure 4 Enlarged view of point C in the middle.

[0029] Among them, 1. Outer shell one; 2. Connecting conveyor belt; 3. Mesh conveyor belt; 4. Outer shell two;

[0030] 5. Adjustment mechanism; 51. Load-bearing shaft; 52. Slide; 53. Guide column; 54. Connecting frame; 55. Damper; 56. Fixing block; 57. Pry bar; 58. Water valve; 59. Counterweight;

[0031] 6. Extrusion mechanism; 61. Rotating handle; 62. Protective shell; 63. Connecting shaft; 64. Worm gear; 65. Worm wheel; 66. Lead screw; 67. Extrusion disc; 68. Return spring;

[0032] 69. Extrusion assembly; 691. Sliding housing; 692. Rotating shaft; 693. Guide block; 694. Scraper; 695. Extrusion roller; 696. Limiting slide column; 697. Limiting block;

[0033] 7. Cleaning mechanism; 71. Water storage cavity; 72. Push spring; 73. Telescopic rod; 74. Rubber sheet; 75. Water inlet pipe;

[0034] 76. Sealing assembly; 761. Gravity block; 762. Sliding post one; 763. Sealing plate one; 764. Sliding post two; 765. Sealing plate two;

[0035] 77. Stop block; 78. Water outlet pipe;

[0036] 79. Water absorption assembly; 791. Water delivery sealing shaft; 792. Center roller; 793. Sponge; 794. Water outlet; 795. Sealing groove. Detailed Implementation

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Please see the appendix Figure 1 -Appendix Figure 4 This invention provides a potato seed disinfection device, including an outer shell 1, which provides space for the internal preliminary treatment structure. An adjustment mechanism 5 is installed inside the outer shell 1, enabling dynamic spraying disinfection of the cut potato seed tubers inside the outer shell 1. The rear end of the outer shell 1 is connected to an outer shell 4 via a connecting conveyor belt 2, allowing the treated seed tubers to smoothly transition into the outer shell 4. An extrusion mechanism 6 is installed inside the outer shell 4 to adjust the absorption and treatment intensity of moisture on the seed tuber surface, thus completing the surface dehydration treatment before applying the dry powder. A cleaning mechanism 7 is installed inside the outer shell 4 for rinsing and cleaning from the inside out when the equipment needs cleaning after operation. A mesh conveyor belt 3 is installed inside the outer shell 1; when the potato seed tubers are transported via the mesh conveyor belt 3, their weight is transferred downwards, triggering dynamic adjustment of the spraying amount.

[0039] The adjusting mechanism 5 includes a slide 52. During transportation, the weight of the potatoes causes the slide 52 to sink, allowing the inner side of the mesh conveyor belt 3 to slide directly and stably onto the outside of the slide 52. A load-bearing shaft 51 is rotatably connected to the inner side of the slide 52 to support the weight of the mesh conveyor belt 3 when it sinks. A guide post 53 is fixedly connected to the top of the slide 52, allowing the guide post 53 to move downwards synchronously when the slide 52 sinks. A connecting frame 54 is fixedly connected to the top of the guide post 53, thereby facilitating the movement of the slide 52. The downward force is transmitted upward through the guide post 53 and the connecting frame 54. The top of the connecting frame 54 is rotatably connected to a damper 55. The damper 55 absorbs the vibration frequency caused by the sudden change in weight on the conveyor belt by moving downward, thereby reducing the sensitivity of the valve linkage. The top of the damper 55 is rotatably connected to a pry bar 57. The downward moving damper 55 presses down on one end of the pry bar 57 to make it rotate. The middle part of the pry bar 57 is rotatably connected to the inner wall of the outer casing 1 through the fixing block 56. Since the middle part of the pry bar 57 is rotated and limited by the fixing block 56, the other end of the pry bar 57 can overcome gravity and tilt upward.

[0040] The outer end of the pry bar 57 is rotatably connected to a counterweight 59. When there are fewer or no seed potatoes on the conveyor belt, reducing the weight, the slide 52 returns to its original position, and the pry bar 57 will be leveled under the gravity of the counterweight 59. The water inlet pipe of the adjusting mechanism 5 is equipped with a water valve 58. The opening and closing of the water valve 58 ensures that the amount of pesticide sprayed is always dynamically matched with the amount of seed potatoes transported, effectively improving the anti-corrosion and disinfection effect after cutting and avoiding waste of pesticide solution. The outside of the pry bar 57 is connected to the valve core of the water valve 58 through a fixing block 56. This allows the valve core of the water valve 58 to open as the pry bar 57 rotates, thereby increasing the amount of pesticide sprayed. The damping design avoids the sudden increase or decrease in the amount of pesticide sprayed due to sudden weight changes and high-frequency vibrations, reducing the wear caused by frequent valve operation.

[0041] Please see the appendix Figure 4 -Appendix Figure 5 In a preferred embodiment of the present invention, the extrusion mechanism 6 includes a connecting shaft 63, which serves as the power input end for adjusting the degree of extrusion. The connecting shaft 63 is rotatably connected to the inner wall of the outer shell 4, providing a stable support reference for the rotation of the connecting shaft 63. A rotating handle 61 is provided at the outer end of the connecting shaft 63, and the rotating handle 61 can be rotated directly when the degree of extrusion needs to be adjusted.

[0042] A worm gear 64 is fixedly connected to the outside of the connecting shaft 63, causing the rotating handle 61 to drive the worm gear 64 to rotate synchronously. A worm wheel 65 is threadedly connected to the outside of the worm gear 64. When the worm gear 64 rotates, it drives the worm wheel 65 to rotate. A lead screw 66 is threadedly connected to the inside of the worm wheel 65. The lead screw 66 is forced to move up and down linearly inside the worm wheel 65 by the threaded transmission. A pressing plate 67 is fixedly connected to the top of the lead screw 66. When the lead screw 66 rises, it will push up the pressing plate 67 and move it upward. A return spring 68 is abutted against the top of the pressing plate 67. The return spring 68 can provide continuous thrust to the upper component and provide elastic expansion space to prevent excessive compression. A pressing assembly 69 is slidably connected to the outside of the pressing plate 67. The final pressing force is changed by the pressing assembly 69.

[0043] The extrusion assembly 69 includes a sliding shell 691. A return spring 68 can directly push the sliding shell 691 upward to change its displacement and thus the extrusion force. The interior of the sliding shell 691 is slidably connected to the exterior of the extrusion disc 67, ensuring stable sliding guidance during its vertical movement. A rotating shaft 692 is provided on the top of the sliding shell 691, providing mounting support for subsequent cleaning components. An extrusion roller 695 is rotatably connected inside the rotating shaft 692. When the sliding shell 691 is adjusted to return to its original position, the extrusion roller 695 can handle components containing moisture and starch. The mixture is squeezed and dehydrated to prevent free water adhering to the surface from clumping and blocking the opening when dry powder is applied later. A guide block 693 is fixedly connected to the outside of the rotating shaft 692 to prevent the rotating shaft 692 from deviating during the lifting process. The guide block 693 is slidably connected to the inside of the outer shell 4 to ensure the stability of the entire extrusion assembly 69 during lifting and adjustment. A scraper 694 is provided on the outside of the rotating shaft 692. The dehydration and surface cleaning operations are achieved through the cooperation of the extrusion roller 695 and the scraper 694.

[0044] Please see the appendix Figure 4 and attached Figure 6 In a preferred embodiment of the present invention, the cleaning mechanism 7 includes a water storage cavity 71, which provides a space for the cleaning mechanism 7 to be filled with water. The outer side of the water storage cavity 71 is located on the inner side of the outer shell 4 to improve the overall installation stability of the cleaning structure. A water inlet pipe 75 is provided on the top of the water storage cavity 71, and external water can be re-injected into the water storage cavity 71 through the water inlet pipe 75 to wait for the next cleaning. A sealing component 76 is slidably connected inside the water inlet pipe 75. The automatic switching and sealing of the water path is achieved by the up and down sliding of the sealing component 76. A water outlet pipe 78 is connected to the outside of the water inlet pipe 75 through a pipe. When the filled water is discharged, it will flow into the subsequent structure through the water outlet pipe 78. A water suction component 79 is connected to the top of the water outlet pipe 78 through a pipe; thereby guiding the water flow into the water suction component 79 to complete the rinsing task from the inside out.

[0045] The sealing assembly 76 includes a sealing piece 763. When the compression is released by sliding, the sealing piece 763 slides downward to block the inlet of the water inlet pipe 75. The outer side of the sealing piece 763 is slidably connected to the inner side of the water inlet pipe 75 to ensure smooth sealing during the sealing process. A sliding post 762 is provided at the top of the water inlet pipe 75. The sliding post 762 is used to link the gravity drive component above. A gravity block 761 is provided at the top of the sliding post 762. The gravity block 761 can press down by its own weight to drive the sealing component below to slide downward. A sliding column 764 is provided at the top of component 1, so that the displacement of gravity block 761 can be transmitted synchronously through the sliding column 764. A sealing piece 765 is provided at the top of the sliding column 764, so that the sealing piece 765 can slide downward synchronously to open the water outlet pipe 78 and move upward to block it when resetting. The sealing piece 765 is externally slidably connected to the inside of the water outlet pipe 78 to achieve reliable control over the opening and closing of the water outlet pipe 78. A stop block 77 is provided on the outside of gravity block 761 so that when the external component rises, it can abut upward and drive the stop block 77 and gravity block 761 to reset and rise.

[0046] Please see the appendix Figure 6 -Appendix Figure 7 In a preferred embodiment of the present invention, the water absorption assembly 79 includes a water supply sealing shaft 791. Water flows out from the water outlet pipe 78 and then enters the interior of the water supply sealing shaft 791. The outer end of the water supply sealing shaft 791 is connected to the top of the water outlet pipe 78 through a pipe, ensuring the water passage between the water supply sealing shaft 791 and the water outlet pipe 78. A central roller 792 is rotatably connected inside the water supply sealing shaft 791, so that water can smoothly enter the interior of the central roller 792 through the water supply sealing shaft 791. A sealing groove 795 is provided on the outside of the central roller 792. The sealing groove 795 is used to install a sealing ring to prevent water leakage between the water supply sealing shaft 791 and the central roller 792. A water outlet 794 is provided on the side wall of the central roller 792, so that the water that has entered the interior can gush out from the water outlet 794. A sponge 793 is slidably connected to the outside of the central roller 792.

[0047] The outward-flowing water washes away the starch stains absorbed by the sponge 793 from the inside out. The sponge 793, during normal operation, absorbs surface moisture from the seed potato, meeting the surface dehydration requirements before applying the dry powder. A push spring 72 is installed on the bottom wall of the water storage cavity 71. When the water outlet pipe 78 is opened, the push spring 72 at the bottom of the water storage cavity 71 releases its elastic force and pushes upwards. During water intake, the water pressure overcomes the elastic force, allowing water to accumulate downwards. A rubber sheet 74 abuts against the top of the push spring 72. The rubber sheet 74, under the action of the push spring 72, pushes out the water that fills the water storage cavity 71. A telescopic rod 73 is installed at the bottom of the rubber sheet 74, providing stable linear guidance during the water-pushing process. The bottom of the telescopic rod 73 is located on the bottom wall of the water storage cavity 71, providing a sturdy fixed end for its guiding movement. The telescopic rod 73 is fitted inside the push spring 72 to ensure that the telescopic and elastic components do not interfere with each other in the movement space.

[0048] Please see the appendix Figure 5 -Appendix Figure 6 In a preferred embodiment of the present invention, a protective shell 62 is provided at the bottom of the sliding shell 691 to provide protection for the internal adjustment components. The inner part of the protective shell 62 is fitted over the outer part of the lead screw 66 to prevent moisture and dirt from intruding and affecting the normal linear movement of the lead screw 66. A limit block 697 is provided on the outer part of the sliding shell 691. When the sliding shell 691 moves upward to reset and perform the squeezing operation, the limit block 697 moves upward to abut against it. The outer part of the limit block 697 abuts against the outer part of the stop block 77, thereby driving the stop block 77 and the gravity block 761 to rise, so that the water circuit is switched and the external water source is re-injected. A limit slide column 696 is provided at the bottom of the rotating shaft 692. The sliding of the limit slide column 696 is used to limit the rotation of the lead screw 66. The outer part of the limit slide column 696 is slidably connected to the inside of the lead screw 66; thus, the lead screw 66 can only be forced to move up and down linearly when rotating for adjustment.

[0049] Working principle:

[0050] When this device performs the comprehensive processing step after cutting potato seed potatoes into pieces, the cut seed potatoes are conveyed onto the mesh conveyor belt 3 and enter the outer casing 1 for dynamic spraying and disinfection. The weight of the potatoes presses down on the load-bearing shaft 51 inside the slide 52, causing the slide 52 to sink as a whole. The sinking of the slide 52 drives the damper 55 to move downward through the guide column 53 and the connecting frame 54, which in turn presses down on one end of the pry bar 57. Since the middle part of the pry bar 57 is limited by the rotation of the fixing block 56, the other end of the pry bar 57 tilts upward against the gravity of the counterweight 59. As the pry bar 57 rotates, it drives the valve core of the water valve 58, opening the water valve 58 to increase the spray volume. When there are few potatoes or no potatoes on the conveyor belt, the weight is reduced, the slide 52 returns to its original position, and the pry bar 57 is leveled under the gravity of the counterweight 59, with the water valve 58 in a closed or slightly open state. During this transmission process, the damper 55 absorbs the vibration frequency generated by the sudden change in weight on the conveyor belt, reducing the sensitivity of the valve linkage. The spraying adjustment mechanism 5 ensures that the spraying amount is dynamically matched with the potato transport volume, avoiding waste or insufficient amount of pesticide caused by fixed spraying. At the same time, the damping design prevents the spraying amount from fluctuating due to sudden weight changes and high-frequency vibrations, reducing wear caused by frequent valve operation.

[0051] After spraying, the seed potatoes undergo a surface dehydration process before being coated with dry powder. Since the cut seed potatoes contain a mixture of moisture and starch, failure to treat them can lead to clumping and blockage of the buds during subsequent dry powder application. As the seed potatoes pass through the inner shell 4, the sponge 793 outside the central roller 792 absorbs surface moisture, while the extrusion roller 695 and scraper 694 in the extrusion assembly 69 dehydrate and clean the sponge 793. When adjusting the extrusion level, rotating the handle 61 drives the worm gear 64 and worm wheel 65 to rotate. The limiting slide pin 696 at the bottom of the rotating shaft 692 slides inside the lead screw 66, restricting its rotation and forcing it to move vertically. When the lead screw 66 rises, it lifts the extrusion plate 67, and the return spring 68 pushes the sliding shell 691 upward, changing the extrusion roller 695's extrusion force on the sponge 793. The return spring 68 can provide continuous thrust to the extrusion assembly 69 and provide elastic expansion space to prevent damage caused by excessive extrusion. Through the cooperation of the extrusion mechanism 6 and the extrusion assembly 69, the extrusion and dehydration degree of the sponge 793 can be adjusted, thereby completing a high-quality surface dehydration treatment. At the same time, when not in use, it can be kept away from the sponge 793 to avoid deformation caused by prolonged extrusion of the sponge 793.

[0052] When the equipment stops operating and the sponge 793 needs cleaning, the squeezing mechanism 6 is adjusted to move the sliding shell 691 downwards, causing the squeezing roller 695 to move away from the sponge 793 and release the squeezing. As the sliding shell 691 slides downwards, it will drive the limit block 697 to slide downwards as well, stopping the upward lifting of the stop block 77. At this time, the gravity block 761 presses down under its own weight, causing the sealing piece 1 763 to slide downwards and block the inlet of the water inlet pipe 75. The sealing piece 2 765 will slide downwards simultaneously to open the outlet pipe 78. The push spring 72 at the bottom of the water storage cavity 71 releases its elasticity, pushing the rubber sheet 74 upwards, allowing the water filled in the water storage cavity 71 to flow through the water pipe from the outlet pipe 78 into the water delivery sealing shaft 791. The internal telescopic rod 73 provides linear guidance during the process of the rubber sheet 74 pushing the water. Water flows through the water supply sealing shaft 791 and enters the interior of the central roller 792. It then flows out from the water outlet 794, washing away the starch stains absorbed by the sponge 793 from the inside out. The wastewater generated during rinsing can naturally drip to the bottom of the outer casing 4 and be discharged in a concentrated manner.

[0053] When the equipment restarts, the sliding shell 691 moves upward to reset and perform the squeezing operation. The limit block 697 abuts upward and drives the stop block 77 and the gravity block 761 to rise. At this time, the first sealing plate 763 moves upward to open the water inlet pipe 75, and the second sealing plate 765 moves upward to block the water outlet pipe 78. The external water source is reinjected into the water storage cavity 71. The water pressure overcomes the elastic force of the push spring 72 and pushes the rubber sheet 74 downward to store water, waiting for the next cleaning. When switching the sealing, the external water source will flow directly into the water supply through the water inlet pipe 75 and the water outlet pipe 78. Water is supplied inside the sealing shaft 791. Direct water supply will be interrupted when the water inlet pipe 75 or the water outlet pipe 78 is blocked. The sealing groove 795 is used to install the sealing ring to prevent water leakage between the water supply sealing shaft 791 and the center roller 792. This is achieved through the cooperation of the cleaning mechanism 7, the blocking component 76 and the water absorption component 79. When the machine is turned off and not in use, it can automatically release water for cleaning when the squeezing roller 695 is manually adjusted away from the sponge 793. The rinsing will end when the water is drained, while keeping the sponge 793 moist so as not to affect the use the next day.

Claims

1. A potato seed tuber disinfection device, comprising an outer shell (1), characterized in that, An adjustment mechanism (5) is provided inside the first outer shell (1). The rear end of the first outer shell (1) is connected to the second outer shell (4) via a connecting conveyor belt (2). An extrusion mechanism (6) is provided inside the second outer shell (4). A cleaning mechanism (7) is provided inside the second outer shell (4). A mesh conveyor belt (3) is provided inside the first outer shell (1). The adjustment mechanism (5) includes a slide (52), the inner side of the mesh conveyor belt (3) is slidably connected to the outside of the slide (52), the inner side of the slide (52) is rotatably connected to a load-bearing shaft (51), the top of the slide (52) is fixedly connected to a guide column (53), the top of the guide column (53) is fixedly connected to a connecting frame (54), the top of the connecting frame (54) is rotatably connected to a damper (55), the top of the damper (55) is rotatably connected to a pry bar (57), the water inlet pipe of the adjustment mechanism (5) is provided with a water valve (58), and the outside of the pry bar (57) passes through a fixing block (56) and is connected to the valve core of the water valve (58).

2. The potato seed tuber disinfection device according to claim 1, characterized in that, The middle part of the pry bar (57) is rotatably connected to the inner wall of the outer casing (1) via a fixing block (56), and the outer end of the pry bar (57) is rotatably connected to a counterweight block (59).

3. The potato seed tuber disinfection device according to claim 1, characterized in that, The extrusion mechanism (6) includes a connecting shaft (63), which is rotatably connected to the inner wall of the outer casing (4). A rotating handle (61) is provided at the outer end of the connecting shaft (63). A worm gear (64) is fixedly connected to the outside of the connecting shaft (63). A worm wheel (65) is threadedly connected to the outside of the worm gear (64). A lead screw (66) is threadedly connected to the inside of the worm wheel (65). An extrusion disc (67) is fixedly connected to the top of the lead screw (66). A return spring (68) abuts against the top of the extrusion disc (67). An extrusion assembly (69) is slidably connected to the outside of the extrusion disc (67).

4. The potato seed tuber disinfection device according to claim 3, characterized in that, The extrusion assembly (69) includes a sliding shell (691), the interior of which is slidably connected to the exterior of the extrusion disc (67), and a rotating shaft (692) is provided on the top of the sliding shell (691), and an extrusion roller (695) is rotatably connected inside the rotating shaft (692).

5. The potato seed tuber disinfection device according to claim 4, characterized in that, A guide block (693) is fixedly connected to the outside of the rotating shaft (692), and the guide block (693) is slidably connected to the inside of the outer shell (4). A scraper (694) is provided on the outside of the rotating shaft (692).

6. The potato seed tuber disinfection device according to claim 4, characterized in that, The cleaning mechanism (7) includes a water storage cavity (71), the outer side of which is located on the inner side of the outer shell (4). A water inlet pipe (75) is provided on the top of the water storage cavity (71). A sealing component (76) is slidably connected inside the water inlet pipe (75). A water outlet pipe (78) is connected to the outside of the water inlet pipe (75) through a pipe. A water suction component (79) is connected to the top of the water outlet pipe (78) through a pipe.

7. The potato seed tuber disinfection device according to claim 6, characterized in that, The sealing assembly (76) includes a sealing piece one (763), the sealing piece one (763) is slidably connected to the inside of the water inlet pipe (75), the top of the water inlet pipe (75) is provided with a sliding column one (762), the top of the sliding column one (762) is provided with a gravity block (761), the top of the gravity block (761) is provided with a sliding column two (764), the top of the sliding column two (764) is provided with a sealing piece two (765), the outside of the sealing piece two (765) is slidably connected to the inside of the water outlet pipe (78), and the outside of the gravity block (761) is provided with a stop block (77).

8. The potato seed tuber disinfection device according to claim 6, characterized in that, The water absorption assembly (79) includes a water supply sealing shaft (791). The outer end of the water supply sealing shaft (791) is connected to the top of the water outlet pipe (78) through a pipe. A central roller (792) is rotatably connected inside the water supply sealing shaft (791). A sealing groove (795) is provided on the outside of the central roller (792). A water outlet (794) is provided on the side wall of the central roller (792). A sponge (793) is slidably connected to the outside of the central roller (792). A push spring (72) is provided on the bottom wall of the water storage cavity (71). A rubber sheet (74) is abutted on the top of the push spring (72). A telescopic rod (73) is provided on the bottom of the rubber sheet (74). The bottom of the telescopic rod (73) is provided on the bottom wall of the water storage cavity (71). The telescopic rod (73) is sleeved inside the push spring (72).

9. The potato seed tuber disinfection device according to claim 7, characterized in that, The bottom of the sliding shell (691) is provided with a protective shell (62), the inside of the protective shell (62) is sleeved on the outside of the lead screw (66), the outside of the sliding shell (691) is provided with a limiting block (697), the outside of the limiting block (697) abuts against the outside of the stop block (77), the bottom of the rotating shaft (692) is provided with a limiting slide post (696), the outside of the limiting slide post (696) is slidably connected to the inside of the lead screw (66).

10. The application of the potato seed tuber disinfection device as described in any one of claims 1-9 in the dynamic spraying disinfection process after potato seed tuber cutting and the surface dehydration process before applying dry powder.

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