A drying device for sweet potato vermicelli

Abstract

This utility model discloses a drying device for sweet potato vermicelli, including a drying chamber, a connecting pipe at the input end of the drying chamber, an adjusting sleeve and an injection pipe above the connecting pipe, a fixed bracket on one side of the adjusting sleeve, a locking rod in the fixed bracket, a pressing plate at one end of the locking rod, a locking groove on the outside of the connecting pipe, a sliding sleeve on the outside of the connecting pipe, a connecting plate on one side of the sliding sleeve, a limiting plate on one side of the connecting plate, a rotating disk on the outside of the connecting pipe, a through groove on the rotating disk, an inner sleeve in the connecting pipe, a flow hole on the side wall of the inner sleeve, a sliding rod in the inner sleeve, a rotating block on one side of the rotating disk, an installation block on the outside of the connecting pipe, a torsion spring between the rotating block and the installation block, a threaded rod at one end of the sliding rod, and a threaded sleeve on the inside of the adjusting sleeve. This utility model realizes flexible adjustment of the drying air speed and ensures the structural stability after the drying air speed is adjusted, ensuring stable delivery of the drying air.

Description

Technical Field

[0001] This utility model relates to the technical field of drying devices for sweet potato vermicelli, and more specifically, it relates to a drying device for sweet potato vermicelli. Background Technology

[0002] Sweet potato vermicelli drying equipment plays a crucial role in the food processing industry, especially in the large-scale production of sweet potato vermicelli. Traditional sweet potato vermicelli drying processes typically rely on drying systems with fixed parameters, using a uniform airflow to process different batches of vermicelli. However, due to the frequent variations in width and thickness of sweet potato vermicelli during production, these fixed-parameter drying devices often cannot be adjusted to suit the actual physical characteristics of the vermicelli. The width and thickness of the vermicelli directly affect the rate and uniformity of internal moisture evaporation. Wider or thicker vermicelli requires stronger airflow or longer drying times, while narrower or thinner vermicelli requires weaker airflow to avoid over-drying, which can lead to brittleness and quality degradation. Existing technologies cannot flexibly adjust the input airflow based on the width and thickness of the vermicelli, resulting in uneven drying processes. Some areas are over-dried while others retain excessive moisture, severely impacting product quality stability and production efficiency, and increasing energy consumption and scrap rates.

[0003] Secondly, while some equipment achieves flexible adjustment of input air speed through the cooperation of certain components, allowing operators to make targeted adjustments based on the characteristics of different batches of vermicelli, its simple structure results in low stability. These simple adjustment structures are prone to loosening or shifting of adjustment components due to vibration and other factors during long-term use. Furthermore, the airflow impact generated during the start-up and shutdown of the drying system, as well as the periodic vibration of the equipment during production, can easily cause the adjusted components to shift due to external forces and internal pipeline pressure impacts. This leads to fluctuations in the adjusted air speed, which directly affects the consistency of drying results, causing batch-to-batch differences in product quality, increasing the frequency of manual inspection and adjustment during production, reducing automation levels and production efficiency, and potentially leading to energy waste and increased product scrap rates. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a drying device for sweet potato vermicelli to solve the technical problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a drying device for sweet potato vermicelli, comprising a drying chamber, an input end of which is connected to a connecting pipe, an adjusting sleeve and an injection pipe above the connecting pipe, both ends of the adjusting sleeve being rotatably connected to the injection pipe and the connecting pipe respectively, a fixed bracket fixedly mounted on one side of the adjusting sleeve, a locking rod slidably mounted in the fixed bracket, a pressing plate connected to one end of the locking rod, multiple locking slots opened on the outer side of the connecting pipe, one end of the locking rod being inserted into the locking slots, a sliding sleeve sleeved on the outer side of the connecting pipe, a connecting plate connected to one side of the sliding sleeve, and a fixed side of the connecting plate. A limiting plate is provided. A rotating disk is rotatably mounted on the outside of the connecting pipe. A through groove is opened on the rotating disk. An inner sleeve is provided in the connecting pipe. Multiple flow holes are opened on the side wall of the inner sleeve. A sliding rod is slidably provided in the inner sleeve. A rotating block is fixedly provided on one side of the rotating disk. An installation block is fixedly provided on the outside of the connecting pipe. A torsion spring is connected between the rotating block and the installation block. A threaded rod is fixedly connected to one end of the sliding rod. A threaded sleeve is fixedly provided on the inside of the adjusting sleeve. The threaded rod and the threaded sleeve are movably connected by threads. A support plate is fixedly provided in the connecting pipe. The inner wall of the connecting pipe is fixedly connected to the outer wall of the inner sleeve through the support plate.

[0008] The present invention is further provided that a base can be detachably provided below both the connecting pipe and the injection pipe.

[0009] The present invention is further configured such that a door is rotatably connected to one side of the drying chamber, an exhaust pipe is connected to the top of the drying chamber, an inlet fan and a filter plate are detachably installed inside the injection pipe, and multiple filter plates are detachably installed at the front end of the inlet fan.

[0010] The present invention is further configured such that a traction spring is movably sleeved on the outer side of the locking rod, and the two ends of the traction spring are respectively connected to the pressure plate and the fixed bracket.

[0011] The present invention is further configured such that a guide rail is fixedly provided on the inner side of the inner sleeve, and a matching groove is provided on the outer side of the sliding rod, the matching groove being adapted to the guide rail.

[0012] The present invention is further configured such that a guide groove is provided on the outer side of the connecting pipe, a guide block is slidably provided in the guide groove, and the guide block is fixedly installed on the inner side of the sliding sleeve.

[0013] The present invention is further configured such that a support bearing is detachably provided on one side of the rotating disk, the support bearing adopts a thrust bearing structure design, a return spring is connected to one side of the support bearing, and the other end of the return spring is connected to a sliding sleeve.

[0014] The present invention is further configured such that an insertion hole is provided in the mounting block, a connecting rod is connected to one side of the rotating block, the torsion spring is movably sleeved on the outside of the connecting rod, and one end of the connecting rod slides into the insertion hole.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a drying device for sweet potato vermicelli, which has the following beneficial effects:

[0017] 1. Through innovative design and structural coordination of multiple components such as the adjusting sleeve and connecting pipe, flexible adjustment of the drying air conveying speed is achieved. When it is necessary to adjust the drying air speed according to the width and thickness of the sweet potato vermicelli, the operator only needs to rotate the adjusting sleeve to drive the fixed bracket to rotate. At the same time, the threaded connection between the threaded sleeve and the threaded rod drives the sliding rod to move in the inner sleeve, changing the number of blocked flow holes on the side wall of the inner sleeve, thereby adjusting the flow area and drying air speed in the connecting pipe. This design completely solves the problem of the inability to flexibly adjust the air speed according to the width and thickness of the vermicelli in the existing technology. It enables the drying process to be adjusted according to the physical characteristics of the vermicelli, avoiding the uneven phenomenon of some areas being over-dried while other areas have too much moisture remaining. This significantly improves the stability of product quality and production efficiency, reduces the scrap rate, and enhances the company's market competitiveness.

[0018] 2. A multi-locking mechanism design is adopted. Through the cooperation of components such as the sliding sleeve, connecting plate, limiting plate, and rotating disk, as well as the synergistic effect of the locking rod and the locking groove, a highly stable locking system is formed. The device utilizes a multi-elastic reset mechanism of torsion spring, return spring, and traction spring, combined with the precise guidance of the guide groove and guide block, to ensure the reliability and stability of the locking structure. After adjusting the wind speed, simply rotate the rotating disk to align the through groove with the limiting plate. The return spring pushes the sliding sleeve to reset, placing the three limiting plates on both sides of the rotating disk. After releasing the rotating disk, the torsion spring resets the sliding sleeve, and the connecting plate and limiting plate support and limit the sliding sleeve, further secured by the guide block and guide groove. The sliding sleeve's inner wall limits the pressure plate's outer wall, preventing the pressure plate and locking rod from sliding outwards. This ensures the locking rod and locking groove securely lock the bracket and adjusting sleeve. This multi-locking mechanism is significantly superior to traditional simple wind speed regulating devices. It effectively resists interference from external forces such as vibration and airflow impact, preventing the adjusted components from shifting and avoiding fluctuations in the adjusted wind speed. It ensures stable delivery of drying air, solves the problem of low stability in existing wind speed regulating structures, eliminates batch differences in product quality caused by unstable wind speed changes, reduces the frequency of manual inspection and adjustment, improves automation and production efficiency, and reduces energy waste and product scrap rate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a drying device for sweet potato vermicelli according to the present invention;

[0020] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the injection tube, connecting tube, adjusting sleeve, rotating disk, and sliding sleeve in this utility model;

[0022] Figure 4 This is a cross-sectional structural diagram of the injection tube, connecting tube, adjusting sleeve, rotating disk, and sliding sleeve in this utility model.

[0023] Figure 5 This is a cross-sectional schematic diagram of the connecting pipe, adjusting sleeve, rotating disk, and sliding sleeve in this utility model.

[0024] In the diagram: 1. Drying chamber; 2. Connecting pipe; 3. Adjusting sleeve; 4. Injection pipe; 5. Fixed bracket; 6. Locking rod; 7. Pressing plate; 8. Locking groove; 9. Sliding sleeve; 10. Connecting plate; 11. Limiting plate; 12. Rotary disk; 13. Through groove; 14. Inner sleeve; 15. Flow hole; 16. Sliding rod; 17. Rotating block; 18. Mounting block; 19. Torsion spring; 20. Threaded rod; 21. Threaded sleeve; 22. Support plate; 23. Base; 25. Chamber door; 26. Exhaust pipe; 27. Inlet fan; 28. Filter plate; 29. ​​Traction spring; 30. Guide rail; 31. Matching groove; 32. Guide groove; 33. Guide block; 34. Support bearing; 35. Return spring; 36. Insertion hole; 37. Connecting rod. Detailed Implementation

[0025] 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.

[0026] 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.

[0027] 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.

[0028] Please see Figures 1-5A drying device for sweet potato vermicelli includes a drying chamber 1. A connecting pipe 2 is connected to the input end of the drying chamber 1. An adjusting sleeve 3 and an injection pipe 4 are located above the connecting pipe 2. The two ends of the adjusting sleeve 3 are rotatably connected to the injection pipe 4 and the connecting pipe 2, respectively. A fixed bracket 5 is fixedly mounted on one side of the adjusting sleeve 3. A locking rod 6 is slidably mounted in the fixed bracket 5. A pressing plate 7 is connected to one end of the locking rod 6. Multiple locking slots 8 are opened on the outside of the connecting pipe 2. One end of the locking rod 6 is inserted into the locking slot 8. A sliding sleeve 9 is fitted on the outside of the connecting pipe 2. A connecting plate 10 is connected to one side of the sliding sleeve 9. A limiting plate 11 is fixedly mounted on one side of the connecting plate 10. A rotating... The rotating disk 12 has a through groove 13. The connecting pipe 2 has an inner sleeve 14. The inner sleeve 14 has multiple flow holes 15 on its side wall. A sliding rod 16 is slidably installed in the inner sleeve 14. A rotating block 17 is fixedly installed on one side of the rotating disk 12. An installation block 18 is fixedly installed on the outside of the connecting pipe 2. A torsion spring 19 is connected between the rotating block 17 and the installation block 18. A threaded rod 20 is fixedly connected to one end of the sliding rod 16. A threaded sleeve 21 is fixedly installed on the inside of the adjusting sleeve 3. The threaded rod 20 and the threaded sleeve 21 are movably connected by threads. A support plate 22 is fixedly installed in the connecting pipe 2. The inner wall of the connecting pipe 2 is fixedly connected to the outer wall of the inner sleeve 14 through the support plate 22.

[0029] Both the connecting tube 2 and the injection tube 4 have a detachable base 23 below them.

[0030] A door 25 is rotatably connected to one side of the drying chamber 1, and an exhaust pipe 26 is connected to the top of the drying chamber 1. An inlet fan 27 and a filter plate 28 are detachably installed inside the injection pipe 4. Multiple filter plates 28 are detachably installed at the front end of the inlet fan 27.

[0031] In this embodiment, when the device is needed, the sweet potato noodles to be dried are first placed on the external drying rack, then the door 25 is opened, and the drying rack containing the sweet potato noodles is pushed into the drying chamber 1. Then the door 25 is closed, and the inlet fan 27 installed in the injection pipe 4 is turned on. Then outside air enters the injection pipe 4 and is filtered by the multi-layer filter plate 28 so that air free of foreign matter is gradually introduced into the drying chamber 1 to dry the sweet potato noodles placed on the drying rack. Then the air carrying moisture is discharged to the outside through the exhaust pipe 26 set at the top of the drying chamber 1, or a subsequent processing device is connected to the exhaust pipe 26 to treat the moisture before the air is discharged to the outside.

[0032] Please see Figures 3-5 As a further implementation of the overall equipment: a traction spring 29 is movably sleeved on the outside of the locking rod 6, and the two ends of the traction spring 29 are connected to the pressing plate 7 and the fixed bracket 5 respectively.

[0033] The inner sleeve 14 is fixedly provided with a guide rail 30, and the sliding rod 16 is provided with a matching groove 31 on the outer side, which is adapted to the guide rail 30.

[0034] A guide groove 32 is provided on the outer side of the connecting pipe 2, and a guide block 33 is slidably provided in the guide groove 32. The guide block 33 is fixedly installed on the inner side of the sliding sleeve 9.

[0035] A support bearing 34 is detachably provided on one side of the rotating disk 12. A return spring 35 is connected to one side of the support bearing 34, and the other end of the return spring 35 is connected to the sliding sleeve 9.

[0036] An insertion hole 36 is provided in the mounting block 18. A connecting rod 37 is connected to one side of the rotating block 17. A torsion spring 19 is movably sleeved on the outside of the connecting rod 37. One end of the connecting rod 37 slides into the insertion hole 36.

[0037] More specifically, when the flow rate of the drying air needs to be adjusted, firstly, rotate the rotating disk 12, causing the rotating block 17 on one side to rotate forward. The rotating block 17 will then cause the connecting rod 37 on one side to rotate forward along the insertion hole 36. Then, the rotating block 17 and the mounting block 18 will cooperate to compress the torsion spring 19 sleeved on the outside of the connecting rod 37. At the same time, the rotating disk 12 will cause the through groove 13 and the support bearing 34 on one side to rotate forward. When the torsion spring 19 is compressed to its limit, the through groove 13 will rotate to the position corresponding to the limiting plate 11. At this time, push the sliding sleeve 9, causing the inner guide block 33 to slide along the guide groove 32. The sliding sleeve 9 will also cause the connecting plate 10 and the limiting plate 11 on one side to slide. As the sliding sleeve 9 passes through the through groove 13, it cooperates with the rotating disk 12 to compress the return spring 35. When the return spring 35 is compressed to its limit, the connecting plate 10 closest to the sliding sleeve 9 slides through the through groove 13 and moves to the other side of the rotating disk 12. Then, the rotating disk 12 is released, and the torsion spring 19 pushes the rotating block 17 to rotate in the opposite direction and reset. Then, the rotating block 17 drives the connecting rod 37 on one side to rotate in the opposite direction and reset along the insertion hole 36. At the same time, the rotating block 17 drives the through groove 13 and the support bearing 34 installed on one side to rotate in the opposite direction and reset through the rotating disk 12, so that the through groove 13 rotates and resets to a position that does not correspond to the limiting plate 11. Then, the connecting plate 10 and the limiting plate 11 closest to the sliding sleeve 9 limit the sliding sleeve 9 to the rotating disk. On one side, the sliding sleeve 9 no longer limits the pressure plate 7. Then, the adjusting sleeve 3 rotates forward, causing the fixed bracket 5 on one side to rotate forward. The fixed bracket 5 then causes the locking rod 6, the pressure plate 7, and the traction spring 29 to rotate forward. The inner wall of the locking groove 8 then presses against one end of the locking rod 6. Due to the rounded corner design at the edge of the inner wall of the locking rod 6 and the inner wall of the locking groove 8, one end of the locking rod 6 slides out of the locking groove 8, and the other end of the locking rod 6 is stretched outward by the pressure plate 7, causing the traction spring 29 to move outward. At the same time, the adjusting sleeve 3 causes the inner threaded sleeve 21 to rotate. Since the threaded rod 20 and the threaded sleeve 21 are connected by threads, and the guide rail 30 and the matching groove 31 limit the rotation of the sliding rod 16, the sliding rod 16... The threaded rod 20 will not rotate. Instead, the threaded rod 20 will drive the sliding rod 16 to slide along the guide rail 30 and the matching groove 31 in the inner sleeve 14. This reduces the number of flow holes 15 blocked by the sliding rod 16 on the side wall of the inner sleeve 14, increasing the flow area inside the connecting pipe 2. This changes the flow rate of the drying air, achieving the purpose of adjusting the conveying speed of the drying air. When it is necessary to reduce the flow area inside the connecting pipe 2, simply rotate the adjusting sleeve 3 in the reverse direction, referring to the steps described above. When the appropriate conveying speed is achieved, stop rotating the adjusting sleeve 3 and rotate the fixed bracket 5, locking rod 6, and other components to the position corresponding to the corresponding slot 8. Then, the traction spring 29 will reset and pull the pressure plate 7, causing the pressure plate 7 to slide the locking rod 6 inward to reset.Insert one end of the locking rod 6 into the corresponding slot 8, and then rotate the rotating disk 12 forward again. The rotating disk 12 will drive the rotating block 17 on one side to rotate forward again. Then the rotating block 17 will drive the connecting rod 37 on one side to rotate forward along the insertion hole 36. The rotating block 17 will cooperate with the mounting block 18 again to squeeze the torsion spring 19. At the same time, the rotating disk 12 will drive the through groove 13 and the supporting bearing 34 on one side to rotate again. When the through groove 13 rotates to the position corresponding to the limiting plate 11, the return spring 35 pushes the sliding sleeve 9 to drive the inner guide block 33 to slide and reset along the guide groove 32. The sliding sleeve 9 will drive the three limiting plates 11 to reset through the connecting plate 10. When the return spring 35 is fully reset, the other two limiting plates 11 are exactly on both sides of the rotating disk 12. Then release the rotating disk 12 again, and the torsion spring 19 will push the rotating block 19 again. 7. The rotating block 17 performs a reverse rotation reset, and the rotating block 17 again drives the connecting rod 37 on one side to rotate and reset along the insertion hole 36. At the same time, the rotating block 17 drives the through groove 13 and the support bearing 34 on one side to rotate and reset in the reverse direction through the rotating disk 12, so that the through groove 13 rotates and resets to a position that does not correspond to the limiting plate 11. At this time, the connecting plate 10 and the other two limiting plates 11 cooperate to support and limit the sliding sleeve 9 to one side of the rotating disk 12. With the guide block 33 and the guide groove 32 limiting the sliding sleeve 9, the sliding sleeve 9 will not move. Then, the inner wall of the sliding sleeve 9 limits the outer wall of the pressing plate 7, so that the pressing plate 7 and the locking rod 6 cannot slide outward. Then, the locking rod 6 and the locking groove 8 cooperate to lock and limit the fixed bracket 5, so that the fixed bracket 5 and the adjusting sleeve 3 cannot rotate, thereby ensuring the structural stability after the conveying flow rate is adjusted and ensuring the stable conveying effect of the drying air.

[0038] In summary, when using or operating the equipment: First, place the sweet potato noodles to be dried on the drying rack. Then, open the door 25 and push the drying rack containing the sweet potato noodles into the drying chamber 1. Then, close the door 25 and turn on the inlet fan 27 installed in the injection pipe 4. Then, outside air enters the injection pipe 4 and is filtered through the multi-layer filter plate 28, so that air free of foreign matter is gradually introduced into the drying chamber 1 to dry the sweet potato noodles placed on the drying rack. Then, the air carrying moisture is discharged to the outside through the exhaust pipe 26 set at the top of the drying chamber 1. Alternatively, after-treatment equipment can be connected to the exhaust pipe 26 to treat the moisture before discharging the air to the outside.

[0039] When the flow rate of the drying air needs to be adjusted, first rotate the rotary disk 12, causing the rotary disk 12 to drive the rotating block 17 on one side to rotate in the forward direction. The rotating block 17 will also drive the connecting rod 37 on one side to rotate in the forward direction along the insertion hole 36. Then, the rotating block 17 will cooperate with the mounting block 18 to compress the torsion spring 19 sleeved on the outside of the connecting rod 37. At the same time, the rotary disk 12 will drive the through groove 13 and the support bearing 34 on one side to rotate in the forward direction. When the torsion spring 19 is compressed to its limit, the through groove 13 will rotate to the position corresponding to the limiting plate 11. At this time, push the sliding sleeve 9, causing the inner guide block 33 to slide along the guide groove 32. The sliding sleeve 9 will also drive the connecting plate 10 on one side and the limiting plate 11 to slide through the through groove 32. The groove 13, along with the sliding sleeve 9, cooperates with the rotating disk 12 to compress the return spring 35. When the return spring 35 is compressed to its limit, the connecting plate 10 closest to the sliding sleeve 9 slides through the groove 13 and moves to the other side of the rotating disk 12. Then, the rotating disk 12 is released, and the torsion spring 19 pushes the rotating block 17 to rotate in the opposite direction and reset. Then, the rotating block 17 drives the connecting rod 37 on one side to rotate in the opposite direction and reset along the insertion hole 36. At the same time, the rotating block 17 drives the groove 13 and the support bearing 34 installed on one side to rotate in the opposite direction and reset through the rotating disk 12, so that the groove 13 rotates and resets to a position that does not correspond to the limiting plate 11. Then, the connecting plate 10 and the limiting plate 11 closest to the sliding sleeve 9 limit the sliding sleeve 9 to the rotating disk 12. The sliding sleeve 9 no longer limits the pressure plate 7. Then, the adjusting sleeve 3 rotates forward, which drives the fixed bracket 5 on one side to rotate forward. The fixed bracket 5 then drives the locking rod 6, the pressure plate 7, and the traction spring 29 to rotate forward. Then, the inner wall of the locking groove 8 presses against one end of the locking rod 6. Due to the rounded corner design at the edge of the inner wall of the locking rod 6 and the inner wall of the locking groove 8, one end of the locking rod 6 slides out of the locking groove 8, and the other end of the locking rod 6 will be stretched outward by the pressure plate 7 to drive the traction spring 29. At the same time, the adjusting sleeve 3 will drive the inner threaded sleeve 21 to rotate. Since the threaded rod 20 and the threaded sleeve 21 are connected by threads, and the guide rail 30 and the matching groove 31 limit the rotation of the sliding rod 16, the sliding rod 16 and the threaded sleeve 21 rotate. The threaded rod 20 will not rotate. Instead, it will drive the sliding rod 16 to slide along the guide rail 30 and matching groove 31 within the inner sleeve 14. This reduces the number of flow holes 15 blocked by the sliding rod 16 on the side wall of the inner sleeve 14, increasing the flow area within the connecting pipe 2. This alters the flow rate of the drying air, achieving the purpose of adjusting the drying air delivery speed. When it is necessary to reduce the flow area within the connecting pipe 2, simply reverse the steps described above to rotate the adjusting sleeve 3. When a suitable delivery speed is achieved, stop rotating the adjusting sleeve 3 and rotate the fixed bracket 5, locking rod 6, and other components to the position corresponding to the slot 8. Then, the traction spring 29 will reset and pull the pressure plate 7, causing the pressure plate 7 to slide the locking rod 6 inwards to reset.Insert one end of the locking rod 6 into the corresponding slot 8, and then rotate the rotating disk 12 forward again. The rotating disk 12 will drive the rotating block 17 on one side to rotate forward again. Then the rotating block 17 will drive the connecting rod 37 on one side to rotate forward along the insertion hole 36. The rotating block 17 will cooperate with the mounting block 18 again to squeeze the torsion spring 19. At the same time, the rotating disk 12 will drive the through groove 13 and the supporting bearing 34 on one side to rotate again. When the through groove 13 rotates to the position corresponding to the limiting plate 11, the return spring 35 pushes the sliding sleeve 9 to drive the inner guide block 33 to slide and reset along the guide groove 32. The sliding sleeve 9 will drive the three limiting plates 11 to reset through the connecting plate 10. When the return spring 35 is fully reset, the other two limiting plates 11 are exactly on both sides of the rotating disk 12. Then release the rotating disk 12 again, and the torsion spring 19 will push the rotating block 19 again. 7. The rotating block 17 performs a reverse rotation reset, and the rotating block 17 again drives the connecting rod 37 on one side to rotate and reset along the insertion hole 36. At the same time, the rotating block 17 drives the through groove 13 and the support bearing 34 on one side to rotate and reset in the reverse direction through the rotating disk 12, so that the through groove 13 rotates and resets to a position that does not correspond to the limiting plate 11. At this time, the connecting plate 10 and the other two limiting plates 11 cooperate to support and limit the sliding sleeve 9 to one side of the rotating disk 12. With the guide block 33 and the guide groove 32 limiting the sliding sleeve 9, the sliding sleeve 9 will not move. Then, the inner wall of the sliding sleeve 9 limits the outer wall of the pressing plate 7, so that the pressing plate 7 and the locking rod 6 cannot slide outward. Then, the locking rod 6 and the locking groove 8 cooperate to lock and limit the fixed bracket 5, so that the fixed bracket 5 and the adjusting sleeve 3 cannot rotate, thereby ensuring the structural stability after the conveying flow rate is adjusted and ensuring the stable conveying effect of the drying air.

[0040] 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 sweet potato vermicelli, comprising a drying chamber (1), characterized in that: The input end of the drying chamber (1) is provided with a connecting pipe (2). Above the connecting pipe (2) are an adjusting sleeve (3) and an injection pipe (4). The two ends of the adjusting sleeve (3) are rotatably connected to the injection pipe (4) and the connecting pipe (2) respectively. A fixed bracket (5) is provided on one side of the adjusting sleeve (3). A locking rod (6) is slidably provided in the fixed bracket (5). A pressing plate (7) is provided at one end of the locking rod (6). Multiple slots (8) are opened on the outside of the connecting pipe (2). A sliding sleeve (9) is fitted on the outside of the connecting pipe (2). A connecting plate (10) is provided on one side of the sliding sleeve (9). A limiting plate (11) is provided on one side of the connecting plate (10). The connecting pipe ( 2) A rotating disk (12) is provided on the outer side, and a through groove (13) is provided on the rotating disk (12). An inner sleeve (14) is provided in the connecting pipe (2). Multiple flow holes (15) are provided on the side wall of the inner sleeve (14). A sliding rod (16) is provided in the inner sleeve (14). A rotating block (17) is provided on one side of the rotating disk (12). An installation block (18) is provided on the outer side of the connecting pipe (2). A torsion spring (19) is provided between the rotating block (17) and the installation block (18). A threaded rod (20) is provided at one end of the sliding rod (16). A threaded sleeve (21) is provided on the inner side of the adjusting sleeve (3). A support plate (22) is provided in the connecting pipe (2).

2. The sweet potato vermicelli drying device according to claim 1, characterized in that: Both the connecting pipe (2) and the injection pipe (4) are detachably provided with a base (23).

3. The drying device for sweet potato vermicelli according to claim 2, characterized in that: The drying chamber (1) is rotatably connected to a door (25) on one side, and an exhaust pipe (26) is connected to the top of the drying chamber (1). An inlet fan (27) and a filter plate (28) are detachably installed inside the injection pipe (4). Multiple filter plates (28) are detachably installed at the front end of the inlet fan (27).

4. The drying device for sweet potato vermicelli noodles according to any one of claims 1-3, characterized in that: A traction spring (29) is movably sleeved on the outside of the locking rod (6), and the two ends of the traction spring (29) are connected to the pressing plate (7) and the fixed bracket (5) respectively.

5. The sweet potato vermicelli drying device according to claim 4, characterized in that: The inner sleeve (14) is fixedly provided with a guide rail (30), and the sliding rod (16) is provided with a matching groove (31) on the outer side, which is adapted to the guide rail (30).

6. The drying device for sweet potato vermicelli according to claim 5, characterized in that: The connecting pipe (2) has a guide groove (32) on its outer side, and a guide block (33) is slidably provided in the guide groove (32). The guide block (33) is fixedly installed inside the sliding sleeve (9).

7. The sweet potato vermicelli drying device according to claim 6, characterized in that: The rotating disk (12) is detachably provided with a support bearing (34) on one side, and a return spring (35) is connected to one side of the support bearing (34), and the other end of the return spring (35) is connected to the sliding sleeve (9).

8. The sweet potato vermicelli drying device according to claim 7, characterized in that: An insertion hole (36) is provided in the mounting block (18). A connecting rod (37) is connected to one side of the rotating block (17). The torsion spring (19) is movably sleeved on the outside of the connecting rod (37). One end of the connecting rod (37) slides into the insertion hole (36).

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