A drying device for agricultural product processing

Abstract

The utility model discloses a drying device for agricultural product processing, including drying storehouse, drying storehouse one side is connected with the communicating pipe, and the communicating pipe one end is equipped with the control sleeve and the connecting pipe, and the communicating pipe outside is equipped with the control board, and is equipped with the control hole on the control board, and one side of control board is equipped with the reset block, and one side of reset block is equipped with the reset spring, and the communicating pipe outside is equipped with the fixed block, and the communicating pipe outside is equipped with the limit sleeve of set, and one side of limit sleeve is equipped with the top rod, and one side of control sleeve is equipped with the limit frame, and is equipped with the limit rod in the limit frame, and the limit rod outside is equipped with the tension spring of set, and one end of limit rod is equipped with the limit board, and the communicating pipe outside is equipped with a plurality of limit grooves, and the movable plate is movably equipped with the movable plate in the control sleeve, and the movable plate is equipped with the movable shaft and the moving axle of rotation, and one side of connecting pipe is equipped with a plurality of moving grooves, the utility model has realized controllable mechanical drying, and has guaranteed the structural stability after the speed adjustment of the wind on the basis of realizing the flexible adjustment of the drying wind input speed, has guaranteed the stable drying effect to the agricultural product.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product drying technology, and more specifically, it relates to a drying device for agricultural product processing. Background Technology

[0002] In existing technologies, the most common method for drying traditional agricultural products is simply to spread them out in a ventilated area for natural air drying. While this method is low-cost, it has many drawbacks: First, the natural air drying process is highly dependent on environmental conditions, such as temperature, humidity, and wind, which are inherently seasonal and unpredictable. Second, natural air drying typically takes several days or even weeks, significantly extending the time from harvest to market and negatively impacting product freshness and market competitiveness. Third, prolonged exposure to open environments makes agricultural products highly susceptible to contamination by dust, insects, and microorganisms, affecting product quality and food safety. Furthermore, it is difficult to ensure uniform drying during natural air drying, often resulting in some products being under-dried and moldy, or over-dried, affecting taste and nutritional value. Finally, natural air drying requires large areas of land, which is particularly disadvantageous in modern agriculture where land resources are scarce.

[0003] Secondly, some agricultural product processing enterprises use a combination of fans and heating chambers to input drying air. While this method speeds up drying and improves efficiency to some extent, its technical implementation still has significant shortcomings. Currently, common equipment of this type on the market typically uses a single fan connected to a simple duct, directly delivering heated air to the drying chamber. This pipeline structure is too simple and lacks an effective wind speed adjustment device. This makes it impossible to flexibly and accurately adjust the drying air input speed according to the characteristics of different agricultural products, different processing stages, or different batches of products. In practical applications, different agricultural products have different requirements for drying wind speed due to differences in moisture content, shape, size, and tissue structure. At the same time, even for the same agricultural product, different wind speeds and temperatures are required in the early, middle, and late stages of drying to achieve the best drying effect. Because existing equipment cannot provide this control capability, problems such as over-drying of the surface while internal moisture remains, uneven drying, and low heat energy utilization often occur during the drying process. This design limitation seriously affects the applicability and processing effect of the drying equipment.

[0004] Furthermore, regarding the aforementioned wind speed adjustment issue, some improved agricultural product drying devices on the market have implemented flexible adjustments to the input speed of the drying air through the cooperation of some adjustable components. However, the structural design of these adjustment mechanisms is generally quite simple, lacking precise anti-loosening and self-locking mechanisms. During long-term operation of the drying device, factors such as the continuous vibration generated by the high-speed rotation of the fan, pressure fluctuations in the airflow inside the duct, and operator switching of equipment can easily cause the precisely adjusted wind speed control components to shift or become misaligned. Even minor structural changes can significantly alter the duct cross-sectional area or the fan output power, resulting in a significant deviation between the actual input wind speed and the preset value. In agricultural product drying, a process that is highly sensitive to temperature, humidity, and wind speed conditions, the instability of the drying air parameters will directly affect the consistency and predictability of the drying effect. This may not only lead to insufficient drying of some batches of products but may also cause quality problems such as surface hardening, loss of nutrients, and color changes due to the combination of excessive wind speed and excessively high temperature. Utility Model Content

[0005] (a) Technical problems to be solved In view of the problems existing in the prior art, this utility model provides a drying device for agricultural product processing to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a drying device for agricultural product processing, comprising a drying chamber, a connecting pipe connected to one side of the drying chamber, a control sleeve and a connecting pipe at one end of the connecting pipe, the two ends of the control sleeve being rotatably connected to the connecting pipe and the connecting pipe respectively, a control plate rotatably mounted on the outside of the connecting pipe, a control hole being opened on the control plate, a return block fixedly mounted on one side of the control plate, a return spring connected to one side of the return block, a fixing block fixedly mounted on the outside of the connecting pipe, the other end of the return spring being connected to the fixing block, and a limiting sleeve sliding on the outside of the connecting pipe. The control sleeve has a top rod fixedly connected to one side of the limiting sleeve and a limiting frame fixedly connected to one side of the control sleeve. A limiting rod is slidably mounted in the limiting frame. A tension spring is movably mounted on the outside of the limiting rod. A limiting plate is connected to one end of the limiting rod. Multiple limiting grooves are opened on the outside of the connecting pipe. The two ends of the tension spring are connected to the limiting frame and the limiting plate, respectively. A movable plate is movably mounted on the inside of the control sleeve. A movable shaft and a moving shaft are rotatably mounted on the movable plate. Multiple moving grooves are opened on one side of the connecting pipe. One end of the moving shaft slides in the moving groove. One end of the movable plate is rotatably connected to the control sleeve through the movable shaft.

[0007] The present invention is further configured such that a fan and a heating chamber are provided on one side of the drying chamber, the output end of the fan is connected to the input end of the heating chamber, and the output end of the heating chamber is connected to a connecting pipe.

[0008] The present invention is further configured such that a filter plate is detachably provided at the input end of the fan, and a protective frame is detachably provided at the top of the drying chamber.

[0009] The present invention is further configured such that a door is rotatably provided on one side of the drying chamber, a placement chamber is detachably provided inside the drying chamber, a plurality of ventilation slots are provided at the bottom of the placement chamber, and a plurality of output slots are provided at the top of the drying chamber.

[0010] The present invention is further configured such that an input cavity is provided at the bottom of the drying chamber, and multiple diversion plates are provided in the input cavity.

[0011] The present invention is further configured such that the movable plate has a plurality of movable holes.

[0012] The present invention is further configured such that a return rod is fixedly connected to one side of the return block, and a return hole is opened in the fixed block, and one end of the return rod is slidably inserted into the return hole.

[0013] The present invention is further configured such that a top spring is movably sleeved on the outside of the top rod, the top spring is connected to one side of the limiting sleeve, the other end of the top spring is in contact with the control plate, a sliding groove is opened on the outside of the connecting pipe, a slider is slidably arranged in the sliding groove, and the slider is fixedly installed on the inside of the limiting sleeve.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a drying device for agricultural product processing, which has the following beneficial effects: 1. By combining a fan and heating chamber system located on one side of the drying chamber with a connecting pipe and control sleeve, this device effectively solves many drawbacks of traditional agricultural product processing that relies on natural air drying. It completely eliminates the limitations of traditional natural air drying, which depends on environmental conditions, and is unaffected by the seasonality and unpredictability of natural factors such as temperature, humidity, and wind. Air drawn in by the fan is filtered through a filter plate before entering the heating chamber for heating. It is then transported through the connecting pipe to the input chamber and finally into the drying chamber, achieving a controllable drying environment around the clock. This design significantly shortens the cycle of agricultural products from harvesting to market, reducing the time required for traditional air drying from several days or even weeks. The process can be completed in just a few hours, greatly improving processing efficiency and helping to maintain product freshness and market competitiveness. At the same time, the filtration effect of the filter plates effectively prevents contamination by dust, insects, and microorganisms, improving product quality and food safety. The internal design of the drying chamber, including the placement compartments and ventilation slots, combined with the diversion plate in the bottom input cavity, ensures uniform distribution of drying air within the chamber. This solves the problems of uneven drying leading to mold or over-drying in traditional air drying, ensuring the product's taste and nutritional value. In addition, the device occupies a small area, greatly saving the large area required for traditional air drying, making it particularly suitable for modern agricultural environments where land resources are scarce.

[0015] 2. This design, comprised of a control sleeve, a movable plate, a movable shaft, and a sliding groove on the connecting pipe, adjusts the gas flow area through the connecting pipe by rotating the control sleeve, which in turn causes the movable shaft on the movable plate to slide along the sliding groove on one side of the connecting pipe. This controls the input flow rate of the drying air. Compared to the simple duct structure mentioned in the background art, the biggest innovation of this design lies in its high adjustment precision and wide adjustment range. Through the precise rotation of the movable plate and the sliding cooperation of the movable shaft in the sliding groove, the operator can adjust the drying air flow rate according to the moisture content, shape, size, and composition of different agricultural products. By adjusting the flow rate of the drying air from strong to weak according to the differences in fabric structure and the different needs of the same agricultural product in the early, middle and late stages of drying, the problems of surface over-drying and internal moisture residue, uneven drying and low heat energy utilization caused by the single wind speed design in the background technology are avoided. This flexible and adjustable flow rate control mechanism makes the drying effect more balanced, which not only improves the drying quality, but also reduces the quality problems such as product surface hardening, loss of nutrients and color changes caused by improper wind speed. It significantly expands the applicability of the device and meets the diverse needs of different agricultural products and different processing stages for drying wind speed.

[0016] 3. This design, comprised of a control board, return block, return spring, fixing block, limiting sleeve, top rod, limiting frame, limiting rod, tension spring, limiting plate, and limiting groove on the outside of the connecting pipe, effectively solves the problem of insufficient stability in existing adjustable drying equipment. After flow rate adjustment, this design achieves a secure lock on the adjusted position through a series of ingenious locking steps: First, initial fixation is achieved by inserting one end of the limiting rod into the corresponding limiting groove. Then, the limiting sleeve is released, and the top spring pushes the limiting sleeve to slide back to its original position, preventing the top rod from penetrating the control hole and limiting the control board. Next, the return spring pushes the return block to rotate in the opposite direction, causing the control hole to rotate to a position not corresponding to the top rod. At this point, the top rod supports the limiting sleeve to one side of the control board, and combined with the slider and groove limiting the limiting sleeve, it prevents the limiting sleeve from moving. Furthermore, the inner wall of the limiting sleeve then... The outer wall of the plate forms a limit to prevent the limiting plate and limiting rod from sliding outward. Finally, the limiting rod and the limiting groove cooperate to achieve a firm lock on the limiting frame and control sleeve. This multi-locking mechanism design effectively copes with the continuous vibration generated by the high-speed rotation of the fan during long-term operation of the drying device, the pressure fluctuation of the airflow inside the air duct, and the frequent switching of equipment by the operator, which may cause the adjustment structure to shift or misalign. Even in the face of strong external forces, it can ensure that the adjusted flow rate control components will not loosen or shift, ensuring that the actual drying air input flow rate is accurately consistent with the preset value. This significantly improves the consistency and predictability of the drying effect, avoids insufficient drying of products due to unstable drying air parameters, or product quality problems caused by the combination of excessive wind speed and excessively high temperature, and provides a reliable guarantee for the drying of agricultural products. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a drying device for agricultural product processing according to the present invention; Figure 2 This is a cross-sectional view of the structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the drying chamber in this utility model; Figure 4 This is a schematic diagram showing the dispersed structure of the control board, connecting pipe, connecting tube, control sleeve, and limiting sleeve in this utility model; Figure 5 This is a cross-sectional structural diagram of the control board, connecting pipe, connecting tube, control sleeve, and limiting sleeve in this utility model.

[0018] In the diagram: 1. Drying chamber; 2. Connecting pipe; 3. Control sleeve; 4. Connecting pipe; 5. Control board; 6. Control hole; 7. Return block; 8. Return spring; 9. Fixing block; 10. Limiting sleeve; 11. Top rod; 12. Limiting frame; 13. Limiting rod; 14. Tension spring; 15. Limiting plate; 16. Limiting groove; 17. Moving plate; 18. Movable shaft; 19. Moving shaft; 20. Moving groove; 21. Fan; 22. Heating chamber; 23. Filter plate; 24. Protective frame; 25. Chamber door; 26. Placement chamber; 27. Ventilation groove; 28. Output groove; 29. ​​Input chamber; 30. Diverter plate; 31. Moving hole; 32. Return rod; 33. Return hole; 34. Top spring; 35. Slide groove; 36. Slider. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0022] Please see Figures 1-5A drying device for agricultural product processing includes a drying chamber 1, characterized in that: a connecting pipe 2 is connected to one side of the drying chamber 1, a control sleeve 3 and a connecting pipe 4 are provided at one end of the connecting pipe 2, the two ends of the control sleeve 3 are rotatably connected to the connecting pipe 2 and the connecting pipe 4 respectively, a control plate 5 is rotatably installed on the outside of the connecting pipe 2, a control hole 6 is opened on the control plate 5, a return block 7 is fixedly provided on one side of the control plate 5, a return spring 8 is connected to one side of the return block 7, a fixing block 9 is fixedly provided on the outside of the connecting pipe 2, the other end of the return spring 8 is connected to the fixing block 9, a limiting sleeve 10 is slidably sleeved on the outside of the connecting pipe 2, and a top rod 1 is fixedly connected to one side of the limiting sleeve 10. 1. A limiting frame 12 is fixedly provided on one side of the control sleeve 3. A limiting rod 13 is slidably provided in the limiting frame 12. A tension spring 14 is movably sleeved on the outside of the limiting rod 13. A limiting plate 15 is connected to one end of the limiting rod 13. Multiple limiting grooves 16 are opened on the outside of the connecting pipe 2. The two ends of the tension spring 14 are respectively connected to the limiting frame 12 and the limiting plate 15. A movable plate 17 is movably provided on the inside of the control sleeve 3. A movable shaft 18 and a movable shaft 19 are rotatably provided on the movable plate 17. Multiple movable grooves 20 are opened on one side of the connecting pipe 4. One end of the movable shaft 19 is slidably placed in the movable groove 20. One end of the movable plate 17 is rotatably connected to the control sleeve 3 through the movable shaft 18.

[0023] A fan 21 and a heating chamber 22 are provided on one side of the drying chamber 1. The output end of the fan 21 is connected to the input end of the heating chamber 22, and the output end of the heating chamber 22 is connected to the connecting pipe 4.

[0024] The input end of the fan 21 is detachably equipped with a filter plate 23, and the top of the drying chamber 1 is detachably equipped with a protective frame 24. The drying chamber 1 has a rotating door 25 on one side, and a detachable placement chamber 26 is provided inside the drying chamber 1. The bottom of the placement chamber 26 has multiple ventilation slots 27, and the top of the drying chamber 1 has multiple output slots 28.

[0025] The bottom of the drying chamber 1 has an input cavity 29, and multiple diversion plates 30 are provided in the input cavity 29.

[0026] In this embodiment, when the device is needed, the door 25 is first opened, and the agricultural products are placed in the corresponding placement compartments 26. Then, the door 25 is closed, and the fan 21 is turned on. The fan 21 draws in outside air, and the filter plate 23 filters and intercepts dust and foreign objects in the air. The clean air is then transported to the heating compartment 22 for heating by the fan 21. Multiple resistance wires are installed in the heating compartment 22 to heat the air. The heated air is then output through the connecting pipe 4 to the connecting pipe 2, and then input into the input cavity 29 through the connecting pipe 2. After being guided by the diverter plate 30, the drying air is distributed more evenly and then flows upward, rising through the ventilation slot 27 to dry the crops. Finally, the drying air carrying moisture is output to the outside through the output slot 28 at the top of the drying compartment 1. The protective frame 24 can prevent foreign objects from falling directly into the drying compartment 1 through the output slot 28.

[0027] Please see Figure 4 and Figure 5 As a further implementation of the overall device: the movable plate 17 has multiple movable holes 31.

[0028] A return rod 32 is fixedly connected to one side of the return block 7, and a return hole 33 is opened in the fixed block 9. One end of the return rod 32 is slidably inserted into the return hole 33.

[0029] A top spring 34 is movably sleeved on the outside of the top rod 11. The top spring 34 is connected to one side of the limiting sleeve 10. The other end of the top spring 34 is connected to the control plate 5 in contact. A sliding groove 35 is opened on the outside of the connecting pipe 2. A slider 36 is slidably installed in the sliding groove 35. The slider 36 is fixedly installed inside the limiting sleeve 10.

[0030] More specifically, when the input flow rate of the drying air needs to be adjusted according to usage requirements, firstly, the control plate 5 is rotated forward. The control plate 5 will drive the control hole 6 and the return block 7 on one side to rotate forward. Then, the return block 7 will drive the return rod 32 on one side to rotate forward along the return hole 33. The return block 7 will cooperate with the fixing block 9 to compress the return spring 8. When the return spring 8 is compressed to its limit, the control hole 6 will rotate to a position concentric with the top rod 11. Then, the limiting sleeve 10 is pushed. The limiting sleeve 10 will drive the inner slider 36 to slide along the slide groove 35. The limiting sleeve 10 will also drive the top rod 11 on one side to slide into the control hole 6. At the same time, the limiting sleeve 10 will cooperate with the control plate 5 on one side to compress the top spring 34. Then, the inner wall of the limiting sleeve 10 will no longer limit the limiting plate 15. Then, the direction is forward. Rotating the control sleeve 3 causes one side of the limiting frame 12 to rotate forward. The limiting frame 12 then causes the limiting rod 13, the limiting plate 15, and the tension spring 14 to rotate forward. The inner wall of the limiting groove 16 then presses against one end of the limiting rod 13. Due to the rounded corners at the edge of the limiting rod 13 and the inner wall of the limiting groove 16, one end of the limiting rod 13 slides out of the limiting groove 16. The other end of the limiting rod 13 is stretched outward by the tension spring 14 via the limiting plate 15. Simultaneously, the control sleeve 3 rotates the moving plate 17 via the movable shaft 18, causing the moving plate 17 to slide outward along the moving groove 20 along the moving shaft 19 mounted on the other side. This causes the moving plate 17 to move the moving hole 31 outward. The movement of the moving hole 31 and its subsequent movement... The diffusion movement of plate 17 changes the gas passage area of ​​connecting pipe 4, thereby adjusting the gas flow rate. When the drying air flow rate is adjusted appropriately, the control sleeve 3 stops rotating, and the limiting frame 12 drives the limiting rod 13 and other components to rotate to the position corresponding to the limiting groove 16. Then, the tension spring 14 pulls the limiting plate 15 to slide back to its original position. The limiting plate 15 then drives the limiting rod 13 to slide inward, so that one end of the limiting rod 13 slides into the corresponding limiting groove 16. Then, the limiting sleeve 10 is released, and the top spring 34 pushes the limiting sleeve 10 to drive the inner slider 36 to slide back to its original position along the groove 35. The limiting sleeve 10 also drives the top rod 11 on one side to slide back to its original position. When the top spring 34 is fully reset, the top rod 11 no longer penetrates into the control hole 6 to limit the control plate 5. The return spring 8 pushes the return block 7 to rotate in the opposite direction to reset. Then, the return block 7 drives the return rod 32 on one side to rotate and reset along the return hole 33. The return block 7 will also drive the control hole 6 to rotate in the opposite direction to reset to a position that does not correspond to the top rod 11 through the control plate 5. Then, the top rod 11 supports the limiting sleeve 10 to one side of the control plate 5. With the help of the slider 36 and the slide groove 35, the limiting sleeve 10 is limited, so that the limiting sleeve 10 cannot move. Then, the inner wall of the limiting sleeve 10 limits the outer wall of the limiting plate 15, so that the limiting plate 15 and the limiting rod 13 cannot slide outward. Then, the limiting rod 13 and the limiting groove 16 cooperate to limit the limiting frame 12, so that the limiting frame 12 and the control sleeve 3 cannot rotate accidentally, thus ensuring the structural stability after the drying airflow rate is adjusted.This ensured a stable input of drying air.

[0031] In summary, when using or operating the equipment: First, open the door 25, then place the agricultural products into the corresponding storage compartments 26, then close the door 25, and then turn on the fan 21. The fan 21 will draw in outside air, and the filter plate 23 will filter and intercept dust and foreign objects in the air. Then, the clean air is transported to the heating chamber 22 for heating by the fan 21. Multiple resistance wires are installed in the heating chamber 22 to heat the air. Then, the heated air is output through the connecting pipe 4 to the connecting pipe 2, and then input into the input chamber 29 through the connecting pipe 2. After being guided by the diverter plate 30, the drying air is distributed more evenly, and then flows upward, rising through the ventilation slot 27 to dry the crops. Finally, the drying air carrying moisture is output to the outside through the output slot 28 at the top of the drying chamber 1. The protective frame 24 can prevent foreign objects from falling directly into the drying chamber 1 through the output slot 28.

[0032] When the input flow rate of the drying air needs to be adjusted according to usage requirements, first rotate the control plate 5 clockwise. The control plate 5 will drive the control hole 6 and the return block 7 on one side to rotate clockwise. Then, the return block 7 will drive the return rod 32 on one side to rotate clockwise along the return hole 33. The return block 7 will also cooperate with the fixing block 9 to compress the return spring 8. When the return spring 8 is compressed to its limit, the control hole 6 will rotate to a position concentric with the top rod 11. Then, push the limiting sleeve 10. The limiting sleeve 10 will drive the inner slider 36 to slide along the slide groove 35. The limiting sleeve 10 will also drive the top rod 11 on one side to slide into the control hole 6. At the same time, the limiting sleeve 10 will cooperate with the control plate 5 on one side to compress the top spring 34. Then, the inner wall of the limiting sleeve 10 will no longer limit the limiting plate 15. Then, rotate the control sleeve 3 clockwise. The control sleeve 3 drives one side of the limiting frame 12 to rotate forward. The limiting frame 12 then drives the limiting rod 13, the limiting plate 15, and the tension spring 14 to rotate forward. The inner wall of the limiting groove 16 then presses against one end of the limiting rod 13. Due to the rounded corner design at the edge of the limiting rod 13 and the inner wall of the limiting groove 16, one end of the limiting rod 13 slides out of the limiting groove 16. The other end of the limiting rod 13 is stretched outward by the tension spring 14 via the limiting plate 15. Simultaneously, the control sleeve 3 drives the moving plate 17 to rotate via the movable shaft 18. This causes the moving plate 17 to drive the moving shaft 19 mounted on the other side to slide outward along the moving groove 20. This causes the moving plate 17 to cause the moving hole 31 to expand outward. The movement of the moving hole 31 and the expansion movement of the moving plate 17 then... By changing the gas passage area of ​​the connecting pipe 4, the gas flow rate can be adjusted. When the drying air flow rate is adjusted appropriately, the control sleeve 3 is stopped from rotating. At the same time, the limiting frame 12 drives the limiting rod 13 and other components to rotate to the position corresponding to the limiting groove 16. Then, the tension spring 14 pulls the limiting plate 15 to slide back to its original position. Then, the limiting plate 15 drives the limiting rod 13 to slide inward, so that one end of the limiting rod 13 slides into the corresponding limiting groove 16. Then, the limiting sleeve 10 is released, and the top spring 34 pushes the limiting sleeve 10 to drive the inner slider 36 to slide back to its original position along the slide groove 35. The limiting sleeve 10 will also drive the top rod 11 on one side to slide back to its original position. When the top spring 34 is fully reset, the top rod 11 no longer penetrates into the control hole 6 to limit the control plate 5. Then, the return spring 8 pushes... The return block 7 rotates in the reverse direction to reset, and then the return block 7 drives the return rod 32 on one side to rotate and reset along the return hole 33. The return block 7 will also drive the control hole 6 to rotate in the reverse direction to reset to a position that does not correspond to the top rod 11 through the control plate 5. Then the top rod 11 supports the limiting sleeve 10 to one side of the control plate 5. With the help of the slider 36 and the slide groove 35, the limiting sleeve 10 is limited, so that the limiting sleeve 10 cannot move. Then the inner wall of the limiting sleeve 10 limits the outer wall of the limiting plate 15, so that the limiting plate 15 and the limiting rod 13 cannot slide outward. Then the limiting rod 13 and the limiting groove 16 cooperate to limit the limiting frame 12, so that the limiting frame 12 and the control sleeve 3 cannot rotate accidentally, thereby ensuring the structural stability after the drying air flow rate is adjusted and ensuring the stable input of the drying air.

[0033] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A drying device for agricultural product processing, comprising a drying chamber (1), characterized in that: A connecting pipe (2) is connected to one side of the drying chamber (1). A control sleeve (3) and a connecting pipe (4) are provided at one end of the connecting pipe (2). A control plate (5) is rotatably provided on the outside of the connecting pipe (2). A control hole (6) is provided on the control plate (5). A return block (7) is provided on one side of the control plate (5). A return spring (8) is provided on one side of the return block (7). A fixing block (9) is provided on the outside of the connecting pipe (2). A limiting sleeve (10) is slidably provided on the outside of the connecting pipe (2). A top rod (11) is provided on one side of the limiting sleeve (10). A limiting frame (12) is provided on one side of the control sleeve (3). The limiting frame (12) contains... A limiting rod (13) is slidably provided, and a tension spring (14) is movably sleeved on the outside of the limiting rod (13). A limiting plate (15) is connected to one end of the limiting rod (13). Multiple limiting grooves (16) are opened on the outside of the connecting pipe (2). A movable plate (17) is movably provided on the inside of the control sleeve (3). A movable shaft (18) and a movable shaft (19) are rotatably provided on the movable plate (17). Multiple movable grooves (20) are opened on one side of the connecting pipe (4). One end of the movable shaft (19) is slidably placed in the movable groove (20). One end of the movable plate (17) is rotatably connected to the control sleeve (3) through the movable shaft (18).

2. The drying device for agricultural product processing according to claim 1, characterized in that: The drying chamber (1) is provided with a fan (21) and a heating chamber (22) on one side. The output end of the fan (21) is connected to the input end of the heating chamber (22), and the output end of the heating chamber (22) is connected to the connecting pipe (4).

3. The drying device for agricultural product processing according to claim 2, characterized in that: The input end of the fan (21) is detachably equipped with a filter plate (23), and the top of the drying chamber (1) is detachably equipped with a protective frame (24).

4. A drying device for agricultural product processing according to claim 3, characterized in that: The drying chamber (1) has a rotating door (25) on one side, and a detachable placement chamber (26) is provided inside the drying chamber (1). The placement chamber (26) has multiple ventilation slots (27) at the bottom and multiple output slots (28) at the top.

5. A drying device for agricultural product processing according to claim 4, characterized in that: The drying chamber (1) has an input cavity (29) at the bottom, and the input cavity (29) is provided with multiple diversion plates (30).

6. A drying apparatus for agricultural product processing according to any one of claims 1-5, characterized in that: The movable plate (17) has multiple movable holes (31).

7. A drying device for agricultural product processing according to claim 1, characterized in that: The return block (7) is fixedly connected to a return rod (32) on one side, and a return hole (33) is opened in the fixed block (9). One end of the return rod (32) is slidably inserted into the return hole (33).

8. A drying device for agricultural product processing according to claim 7, characterized in that: A top spring (34) is movably sleeved on the outside of the top rod (11). The top spring (34) is connected to one side of the limiting sleeve (10). The other end of the top spring (34) is connected to the control plate (5) in contact. A sliding groove (35) is opened on the outside of the connecting pipe (2). A slider (36) is slidably installed in the sliding groove (35). The slider (36) is fixedly installed inside the limiting sleeve (10).

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