Hot air dryer for drying and processing fruits and vegetables and using method

Abstract

The invention discloses a hot air dryer for fruit and vegetable drying processing and a using method, the input end of a vertical rod is connected to a gear ring in a meshed mode, a second worm wheel is arranged on a vertical cylinder of a support, the second worm wheel is connected with a second worm in a meshed mode, and the second worm is arranged on a linkage rod; the input end of the linkage rod is detachably connected to the servo motor, and the linkage rod on the servo motor is horizontally arranged in the vegetable and fruit drying machine. The required vegetables and fruits are placed on the containing plate, then the containing plate is placed in the containing frame and the base, the servo motor is started after preliminary drying, the servo motor can enable the vertical cylinder to rotate integrally, the vertical cylinder can rotate clockwise and anticlockwise in a reciprocating mode, and in the rotating process, the gear can rotate in the process of moving along the gear ring; the vertical rod can drive the rotating rod to rotate, the rotating rod can enable the containing disc to incline in different directions in a reciprocating mode, so that vegetables and fruits are turned over, hot air can evenly dry the vegetables and fruits, and the drying efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of drying machines, and in particular to a hot air drying machine for drying and processing fruits and vegetables and a method of using the hot air drying machine. Background Art

[0002] Fruit and vegetable drying machines are generally designed with stratospheric and vertical air ducts. The drying temperature can be set to 30℃~90℃, and the controllable temperature ranges from low temperature, medium temperature to high temperature. For fruit and vegetable materials, there are block, strip, filament, and whole materials. These equipments can be used to dry them. They are referred to as fruit and vegetable drying machines. The higher quality of fruit and vegetable drying machines is the biggest feature compared to traditional drying machines.

[0003] The fruit and vegetable dryer needs to be preheated before use. After preheating, the fruits and vegetables on the trays are stacked in the dryer one by one. However, the internal space of the dryer is limited, and the amount of fruits and vegetables placed is large. The hot air cannot quickly evaporate the moisture in the vegetables. In addition, due to the different sizes of fruits and vegetables, they are easily not dried properly and hard bags are formed. The efficiency of the fruit and vegetable drying process will be reduced, and the electricity cost will increase. Summary of the invention

[0004] One of the purposes of the present application is to provide a hot air dryer for fruit and vegetable drying and processing and a method of use.

[0005] To achieve the above purpose, the technical solution adopted in the present application is: a hot air dryer for fruit and vegetable drying processing, comprising a fruit and vegetable dryer, a fan, a heater, a servo motor and an air outlet, wherein a support is detachably connected inside the fruit and vegetable dryer, a vertical cylinder is rotatably connected to the support, a rotating rod is rotatably connected to the side edge of the vertical cylinder, a base is welded to the rotating rod, a placement rack is slidably connected to the base, an input end of the rotating rod is meshedly connected to a first worm, the first worm is arranged on the vertical rod, the input end of the vertical rod is meshedly connected to a gear ring, a second worm wheel is arranged on the vertical cylinder of the support, the second worm wheel is meshedly connected to a second worm, the second worm wheel is arranged on a linkage rod, the input end of the linkage rod is detachably connected to the servo motor, and the linkage rod on the servo motor is horizontally arranged in the fruit and vegetable dryer.

[0006] Preferably, the vertical cylinder is arranged in a cylindrical shape as a whole, and is vertically installed inside the vegetable and fruit dryer. An inner groove is opened inside the vertical cylinder, and the inner groove is opened along the length direction of the vertical cylinder. Side grooves are opened on the side walls of the vertical cylinder, and the side grooves are opened along the length direction of the vertical cylinder. The side grooves are respectively located on both sides of the vertical cylinder.

[0007] Preferably, the base on the outside of the vertical cylinder is L-shaped as a whole, one end of the base is detachably connected to a sliding rod, the sliding rod is vertically installed on the base, a sliding seat is slidably connected to the sliding rod, the sliding seat is arranged along the length of the base, and the outer end of the sliding seat is detachably connected to a corresponding placement rack.

[0008] Preferably, the placement rack is arranged along the length of the base, and the placement rack and the base are arranged in a U-shape as a whole. A baffle is arranged on the sliding rod connected to the sliding seat, and the baffle is arranged in a disc shape as a whole. The sliding rod is arranged in a cylindrical shape as a whole. The diameter of the baffle is larger than the diameter of the sliding rod, and the sliding rod is respectively located at the two side ends of the base.

[0009] Preferably, a first spring is sleeved on the slide rod, and the first spring is located on the slide rod between the baffle and the slide seat, one end of the first spring is detachably connected to the baffle, and the other end of the first spring is detachably connected to the slide seat, and the slide seat and the placement rack are arranged in a straight line as a whole, and the slide seat and the placement rack are flush with each other.

[0010] Preferably, a fixing seat is arranged in the side groove of the vertical cylinder, a rotating rod is rotatably connected to the fixing seat in the side groove, and a first worm gear is arranged on the rotating rod of the fixing seat.

[0011] Preferably, the rotating rod of the fixing seat is connected to the fixing seat through, the first worm gear connected to the rotating rod is meshingly connected to the first worm, and the first worm gears on both sides are coaxially arranged.

[0012] Preferably, the vertical rod is detachably connected with a gear, and the gear is meshingly connected to the corresponding gear ring.

[0013] Preferably, the diameter of the gear ring is greater than the diameter of the vertical cylinder, and the gear ring is located on the outer circumference of the vertical cylinder.

[0014] To achieve the above purpose, another technical solution adopted by the present application is: a method for using a hot air dryer for drying fruits and vegetables, comprising the following steps: S1: Place the required fruits and vegetables on the serving plate, and then place the serving plate between the placing rack and the base in turn. The placing rack and the base will clamp the serving plate. After starting the fruit and vegetable dryer, the fruits and vegetables will be dried preliminarily, and then the servo motor will be started. After the servo motor is started, the connected linkage rod will rotate. When the linkage rod rotates, it will drive the vertical cylinder to rotate as a whole. During the rotation of the vertical cylinder, the placing rack on the vertical cylinder will drive the serving plate to rotate, and the position of the fruits and vegetables can be adjusted. S2: During the rotation of the vertical cylinder, the gear on the vertical cylinder will move along the gear ring. When the gear moves on the gear ring, it will rotate. The gear is set on the vertical rod, and the vertical rod can rotate with the gear. During the rotation of the vertical rod, the first worm gear will drive the entire base. As the rotation direction of the vertical cylinder is different, the base can flip back and forth. After the flipping angle is controlled, the fruits and vegetables on the plate will roll back and forth, and each side of the fruits and vegetables can be dried by hot air. After the flipping angle is controlled, the fruits and vegetables will not collide with each other, thereby avoiding the crushing of the fruits and vegetables.

[0015] Compared with the prior art, the beneficial effects of this application are: The hot air dryer and use method for drying fruits and vegetables are characterized in that a support is installed inside the fruit and vegetable dryer, and the support can fix the vertical cylinder. When the vertical cylinder is connected to the support through the support, one end of the vertical cylinder will be located on the other side of the support. A second worm gear can be installed on the end of the vertical cylinder on the lower side of the support, and the second worm gear can be connected to the second worm on the linkage rod. The servo motor can drive the second worm gear to rotate through the second worm. After the second worm gear rotates, the vertical cylinder can rotate as a whole. When the vertical cylinder rotates, the vertical cylinder can drive the serving plate to rotate, and the position of the serving plate will not be fixed, so as to avoid that the fruits and vegetables in the serving plate are dried for a long time by hot air and the degree of drying is too high. The servo motor can control the vertical cylinder to rotate in different directions, and the vertical cylinder can rotate clockwise and counterclockwise reciprocatingly. When the vertical cylinder rotates clockwise and counterclockwise, the base and the placing rack on the vertical cylinder will flip back and forth, and the placing rack and the base can tilt back and forth at a certain angle in different directions, so as to realize the flipping and displacement of fruits and vegetables in the serving plate, thereby realizing the all-round drying of fruits and vegetables, avoiding the occurrence of hard bags, and improving the drying efficiency.

[0016] The hot air dryer and use method for fruit and vegetable drying processing are characterized in that side grooves are provided on a vertical cylinder, a fixing seat can be installed on the side grooves, the fixing seat can fix a rotating rod, and the rotating rod can rotate at the fixing seat position, and after a corresponding first worm gear is installed on the rotating rod, the first worm gear can mesh with a first worm, the first worm is arranged on a vertical rod, the vertical rod is arranged on a gear, the vertical rod and the vertical cylinder are arranged with different axes, the vertical rod is close to the edge of the vertical cylinder, the gear on the vertical rod can extend out of the vertical cylinder, a gear ring is provided on the outside of the vertical cylinder, the gear ring is fixedly installed on a support, when the vertical cylinder rotates, the gear moves along the gear ring, when the gear moves along the gear ring, the gear can rotate, thereby realizing the rotation of the vertical rod, the vertical rod can drive the first worm to rotate, and the first worm can drive the rotating rod to rotate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the internal structure of the present invention.

[0019] Figure 3 It is a structural schematic diagram of the placement rack in the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the inner tank in the present invention.

[0021] Figure 5 It is a schematic diagram of the structure of the second worm gear in the present invention.

[0022] Figure 6 For the present invention Figure 3 Enlarged view of point A in the middle.

[0023] Figure 7 For the present invention Figure 4 Enlarged view of point B in the middle.

[0024] In the figure: 1. vegetable and fruit drying machine; 2. fan; 3. heater; 4. servo motor; 5. air outlet; 6. linkage rod; 7. support; 8. vertical cylinder; 9. side groove; 10. placement rack; 11. base; 12. slide rod; 13. first spring; 14. slide seat; 15. baffle; 16. gear; 17. gear ring; 18. inner groove; 19. fixed seat; 20. rotating rod; 21. vertical rod; 22. first worm; 23. first worm wheel; 24. second worm; 25. second worm wheel. DETAILED DESCRIPTION

[0025] Below, the present application is further described in conjunction with specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0026] like Figures 1 to 7As shown, the present invention provides a hot air dryer for fruit and vegetable drying processing, comprising a fruit and vegetable dryer 1, a fan 2, a heater 3, a servo motor 4 and an air outlet 5. The fruit and vegetable dryer 1 is detachably connected with a support 7, a vertical cylinder 8 is rotatably connected to the support 7, a rotating rod 20 is rotatably connected to the side edge of the vertical cylinder 8, a base 11 is welded to the rotating rod 20, a placing rack 10 is slidably connected to the base 11, an input end of the rotating rod 20 is meshedly connected with a first worm 22, the first worm 22 is arranged on a vertical rod 21, the input end of the vertical rod 21 is meshedly connected to a gear ring 17, a second worm gear 25 is arranged on the vertical cylinder 8 of the support 7, the second worm gear 25 is meshedly connected with a second worm 24, the second worm 24 is arranged on a linkage rod 6, the input end of the linkage rod 6 is detachably connected to the servo motor 4, and the linkage rod 6 on the servo motor 4 is horizontally arranged in the fruit and vegetable dryer 1. Place the required fruits and vegetables on the serving plate, and then place the serving plate in the placement rack 10 and the base 11. After preliminary drying, start the servo motor 4, and the servo motor 4 can rotate the vertical cylinder 8 as a whole, and the vertical cylinder 8 can reciprocate clockwise and counterclockwise. During the rotation, the gear 16 will rotate while moving along the gear ring 17, and the vertical rod 21 can drive the rotating rod 20 to rotate. The rotating rod 20 can make the serving plate tilt reciprocatingly in different directions, so that the fruits and vegetables roll, so that the hot air can dry them evenly, thereby improving the drying efficiency.

[0027] The vertical cylinder 8 is cylindrical in shape as a whole, and is vertically installed inside the vegetable and fruit drying machine 1. An inner groove 18 is provided inside the vertical cylinder 8, and the inner groove 18 is provided along the length of the vertical cylinder 8. Side grooves 9 are provided on the side walls of the vertical cylinder 8, and the side grooves 9 are provided along the length of the vertical cylinder 8. The side grooves 9 are respectively located on both sides of the vertical cylinder 8. The base 11 and the placement rack 10 can be installed through the vertical cylinder 8. After the vegetables and fruits are placed, the vertical cylinder 8 can drive the vegetables and fruits to adjust their positions, thereby preventing one end face of the vegetables and fruits from drying for a long time.

[0028] The base 11 outside the vertical tube 8 is L-shaped as a whole, and one end of the base 11 is detachably connected to a slide bar 12, which is vertically installed on the base 11, and a slide seat 14 is slidably connected to the slide bar 12, which is arranged along the length of the base 11, and a corresponding placement rack 10 is detachably connected to the outer end of the slide seat 14. The base 11 can be used to place the serving tray, and when the slidable placement rack 10 is installed on the base 11, the placement rack 10 can clamp the serving tray, thereby preventing the position of the serving tray from being displaced and preventing the serving tray from being dislocated.

[0029] In practice, by installing the support 7 inside the vegetable and fruit drying machine 1, the support 7 can fix the vertical cylinder 8. When the vertical cylinder 8 is connected to the support 7 through the support 7, one end of the vertical cylinder 8 will be located on the other side of the support 7. The second worm gear 25 can be installed on the end of the vertical cylinder 8 on the lower side of the support 7. The second worm gear 25 can be connected to the second worm 24 on the linkage rod 6. The servo motor 4 can drive the second worm gear 25 to rotate through the second worm 24. After the second worm gear 25 rotates, the vertical cylinder 8 can rotate as a whole. When the vertical cylinder 8 rotates, the vertical cylinder 8 can drive the serving plate to rotate. The position of the plate will not be fixed, and the fruits and vegetables in the plate will not be dried too dry by hot air for a long time, thereby preventing the fruits and vegetables in the plate from being dried too dry. The servo motor 4 can control the vertical cylinder 8 to rotate in different directions, and the vertical cylinder 8 can rotate back and forth clockwise or counterclockwise. When the vertical cylinder 8 rotates clockwise or counterclockwise, the base 11 and the placement rack 10 on the vertical cylinder 8 will flip back and forth, and the placement rack 10 and the base 11 can tilt back and forth in different directions at a certain angle, thereby realizing the flipping and displacement of the fruits and vegetables in the plate, thereby realizing all-round drying of the fruits and vegetables, avoiding the occurrence of hard bags, and improving the drying efficiency.

[0030] The placement rack 10 is arranged along the length of the base 11, and the placement rack 10 and the base 11 are arranged in a U-shape as a whole. A baffle 15 is arranged on the slide bar 12 connected to the slide seat 14, and the baffle 15 is arranged in a disc shape as a whole. The slide bar 12 is arranged in a cylindrical shape as a whole. The diameter of the baffle 15 is larger than the diameter of the slide bar 12, and the slide bar 12 is respectively located at the two side ends of the base 11. The installation of the slide seat 14 can be realized by the arrangement of the slide bar 12. After the slide seat 14 is pushed by the first spring 13, it will keep the state of moving toward the position of the base 11, thereby realizing the state of the placement rack 10 moving toward the position of the base 11.

[0031] The slide bar 12 is sleeved with a first spring 13, which is located on the slide bar 12 between the baffle plate 15 and the slide seat 14, one end of the first spring 13 is detachably connected to the baffle plate 15, and the other end of the first spring 13 is detachably connected to the slide seat 14, and the slide seat 14 and the placement rack 10 are arranged in a straight line as a whole, and the slide seat 14 and the placement rack 10 are flush with each other. The first spring 13 can be used to push the slide seat 14.

[0032] A fixed seat 19 is arranged in the side groove 9 of the vertical cylinder 8, and a rotating rod 20 is rotatably connected to the fixed seat 19 in the side groove 9, and a first worm gear 23 is arranged on the rotating rod 20 of the fixed seat 19. The first worm gear 23 can be driven by the first worm gear 22, and the connected rotating rod 20 will also rotate when the first worm gear 23 moves.

[0033] The rotating rod 20 of the fixing seat 19 is connected to the fixing seat 19, and the first worm gear 23 connected to the rotating rod 20 is meshed and connected to the first worm 22, and the first worm gears 23 on both sides are coaxially arranged. The rotating rod 20 can drive the base 11 and the placement frame 10.

[0034] The vertical rod 21 is detachably connected with a gear 16, which is meshedly connected to a corresponding gear ring 17. The rotation of the gear 16 can be achieved by meshing the gear 16 with the gear ring 17.

[0035] The diameter of the gear ring 17 is greater than the diameter of the vertical cylinder 8, and the gear ring 17 is located at the outer periphery of the vertical cylinder 8. The gear ring 17 can be meshed with the gear 16 by the arrangement of the gear ring 17.

[0036] During implementation, by opening a side groove 9 on the vertical cylinder 8, a fixing seat 19 can be installed on the side groove 9, and the fixing seat 19 can fix the rotating rod 20, and the rotating rod 20 will rotate at the position of the fixing seat 19. After the corresponding first worm gear 23 is installed on the rotating rod 20, the first worm gear 23 can mesh with the first worm 22. The first worm 22 is arranged on the vertical rod 21, and the vertical rod 21 is arranged on the gear 16. The vertical rod 21 and the vertical cylinder 8 are arranged with different axes. The vertical rod 21 is close to the edge of the vertical cylinder 8, and the gear 16 on the vertical rod 21 can extend out of the vertical cylinder 8. A gear ring 17 is arranged on the outer side of the vertical cylinder 8, and the gear ring 17 is fixedly installed on the support 7. When the vertical cylinder 8 rotates, the gear 16 will move along the gear ring 17, and when the gear 16 moves along the gear ring 17, the gear 16 will rotate, thereby realizing the rotation of the vertical rod 21, the vertical rod 21 can drive the first worm 22 to rotate, and the first worm 22 can drive the rotating rod 20 to rotate.

[0037] like Figure 1-7 As shown, a method for using a hot air dryer for drying fruits and vegetables comprises the following steps: S1: Place the required fruits and vegetables on the serving tray, and then place the serving tray between the placing rack 10 and the base 11 in turn. The placing rack 10 and the base 11 will clamp the serving tray. After starting the fruit and vegetable drying machine 1, the fruits and vegetables are first dried preliminarily, and then the servo motor 4 is started. After the servo motor 4 is started, the connected linkage rod 6 will rotate. When the linkage rod 6 rotates, the vertical cylinder 8 will be driven to rotate as a whole. During the rotation of the vertical cylinder 8, the placing rack 10 on the vertical cylinder 8 will drive the serving tray to rotate, and the position of the fruits and vegetables can be adjusted; S2: During the rotation of the vertical cylinder 8, the gear 16 on the vertical cylinder 8 will move along the gear ring 17. When the gear 16 moves on the gear ring 17, the gear 16 itself will rotate. The gear 16 is set on the vertical rod 21, and the vertical rod 21 can rotate with the gear 16. During the rotation of the vertical rod 21, the first worm 22 will drive the base 11 as a whole. As the rotation direction of the vertical cylinder 8 is different, the base 11 can flip back and forth. After the flipping angle is controlled, the fruits and vegetables on the plate will roll back and forth, and each side of the fruits and vegetables can be dried by hot air. After the flipping angle is controlled, the fruits and vegetables will not collide with each other, thereby avoiding the crushing of the fruits and vegetables.

[0038] The working principle of the present invention is as follows: by installing a support 7 inside the vegetable and fruit drying machine 1, the support 7 can fix the vertical cylinder 8. When the vertical cylinder 8 is connected to the support 7 through the support 7, one end of the vertical cylinder 8 will be located on the other side of the support 7. The second worm gear 25 can be installed on the end of the vertical cylinder 8 on the lower side of the support 7. The second worm gear 25 can be connected to the second worm 24 on the linkage rod 6. The servo motor 4 can drive the second worm gear 25 to rotate through the second worm 24. After the second worm gear 25 rotates, the vertical cylinder 8 can rotate as a whole. When the vertical cylinder 8 rotates, the vertical cylinder 8 can drive the serving plate to rotate. The servo motor 4 can control the vertical cylinder 8 to rotate in different directions, and the vertical cylinder 8 can rotate clockwise and counterclockwise. When the vertical cylinder 8 rotates clockwise and counterclockwise, the base 11 and the placement rack 10 on the vertical cylinder 8 will flip back and forth, and the placement rack 10 and the base 11 can tilt in different directions at a certain angle, thereby realizing the flipping and displacement of the fruits and vegetables in the serving plate, thereby realizing all-round drying of the fruits and vegetables, avoiding the formation of hard bags, and improving the drying efficiency.

[0039] By providing a side groove 9 on the vertical cylinder 8, a fixing seat 19 can be installed on the side groove 9, and the fixing seat 19 can fix the rotating rod 20, and the rotating rod 20 will rotate at the position of the fixing seat 19. After the corresponding first worm gear 23 is installed on the rotating rod 20, the first worm gear 23 can mesh with the first worm 22. The first worm 22 is arranged on the vertical rod 21, and the vertical rod 21 is arranged on the gear 16. The vertical rod 21 and the vertical cylinder 8 are arranged with different axes. The vertical rod 21 is close to the edge of the vertical cylinder 8, and the gear 16 on the vertical rod 21 can extend out of the vertical cylinder 8. A gear ring 17 is arranged on the outside of the vertical cylinder 8, and the gear ring 17 is fixedly installed on the support 7. When the vertical cylinder 8 rotates, the gear 16 will move along the gear ring 17, and when the gear 16 moves along the gear ring 17, the gear 16 will rotate, thereby realizing the rotation of the vertical rod 21, the vertical rod 21 can drive the first worm 22 to rotate, and the first worm 22 can drive the rotating rod 20 to rotate.

[0040] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and the specification only describe the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application for which protection is sought. The scope of protection claimed by the present application is defined by the attached claims and their equivalents.

Claims

1. A hot air dryer for drying fruits and vegetables, comprising a fruit and vegetable dryer (1), a fan (2), a heater (3), a servo motor (4) and an air outlet (5), characterized in that: The vegetable and fruit dryer (1) is detachably connected to a support (7), a vertical cylinder (8) is rotatably connected to the support (7), a rotating rod (20) is rotatably connected to the side edge of the vertical cylinder (8), a base (11) is welded to the rotating rod (20), a placement rack (10) is slidably connected to the base (11), an input end of the rotating rod (20) is meshingly connected to a first worm (22), the first worm (22) is arranged on the vertical rod (21), the input end of the vertical rod (21) is meshingly connected to a gear ring (17), a second worm wheel (25) is arranged on the vertical cylinder (8) of the support (7), the second worm wheel (25) is meshingly connected to a second worm (24), the second worm (24) is arranged on a linkage rod (6), the input end of the linkage rod (6) is detachably connected to a servo motor (4), and the linkage rod (6) on the servo motor (4) is horizontally arranged in the vegetable and fruit dryer (1).

2. A hot air dryer for drying fruits and vegetables as claimed in claim 1, characterized in that: The vertical cylinder (8) is generally cylindrical in shape and is vertically mounted inside the vegetable and fruit drying machine (1). An inner groove (18) is provided inside the vertical cylinder (8), and the inner groove (18) is provided along the length of the vertical cylinder (8). Side grooves (9) are provided on the side walls of the vertical cylinder (8), and the side grooves (9) are provided along the length of the vertical cylinder (8). The side grooves (9) are respectively located on both sides of the vertical cylinder (8).

3. The hot air dryer for drying fruits and vegetables as claimed in claim 1, characterized in that: The base (11) outside the vertical tube (8) is arranged in an L-shape as a whole. One end of the base (11) is detachably connected to a slide rod (12). The slide rod (12) is vertically mounted on the base (11). A slide seat (14) is slidably connected to the slide rod (12). The slide seat (14) is arranged along the length of the base (11). The outer end of the slide seat (14) is detachably connected to a corresponding placement rack (10).

4. A hot air dryer for drying fruits and vegetables as claimed in claim 3, characterized in that: The placement rack (10) is arranged along the length of the base (11), and the placement rack (10) and the base (11) are arranged in a U-shape as a whole. A baffle (15) is arranged on the slide rod (12) connected to the slide seat (14), and the baffle (15) is arranged in a disc shape as a whole. The slide rod (12) is arranged in a cylindrical shape as a whole. The diameter of the baffle (15) is larger than the diameter of the slide rod (12), and the slide rod (12) is respectively located at the two side ends of the base (11).

5. A hot air dryer for drying fruits and vegetables as claimed in claim 4, characterized in that: A first spring (13) is sleeved on the slide bar (12). The first spring (13) is located on the slide bar (12) between the baffle plate (15) and the slide seat (14). One end of the first spring (13) is detachably connected to the baffle plate (15), and the other end of the first spring (13) is detachably connected to the slide seat (14). The slide seat (14) and the placement rack (10) are arranged in a straight line as a whole. The slide seat (14) and the placement rack (10) are flush with each other.

6. The hot air dryer for drying fruits and vegetables as claimed in claim 1, characterized in that: A fixing seat (19) is arranged in the side groove (9) of the vertical cylinder (8), a rotating rod (20) is rotatably connected to the fixing seat (19) in the side groove (9), and a first worm gear (23) is arranged on the rotating rod (20) of the fixing seat (19).

7. A hot air dryer for drying fruits and vegetables as claimed in claim 6, characterized in that: The rotating rod (20) of the fixed seat (19) is connected to the fixed seat (19) through the rotating rod (20), and the first worm gear (23) connected to the rotating rod (20) is meshedly connected to the first worm gear (22), and the first worm gears (23) on both sides are coaxially arranged.

8. The hot air dryer for drying fruits and vegetables as claimed in claim 1, characterized in that: The vertical rod (21) is detachably connected to a gear (16), and the gear (16) is meshingly connected to a corresponding gear ring (17).

9. A hot air dryer for drying fruits and vegetables as claimed in claim 8, characterized in that: The diameter of the toothed ring (17) is greater than the diameter of the vertical cylinder (8), and the toothed ring (17) is located on the outer circumference of the vertical cylinder (8).

10. A method for using a hot air dryer for drying fruits and vegetables, applied to the dryer according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: The desired fruits and vegetables are placed on a serving plate, and then the serving plate is placed between the placing frame (10) and the base (11) in sequence. The placing frame (10) and the base (11) will clamp the serving plate. After starting the fruit and vegetable drying machine (1), the fruits and vegetables are first dried preliminarily. Then, the servo motor (4) is started. After the servo motor (4) is started, the connected linkage rod (6) is rotated. When the linkage rod (6) rotates, the vertical cylinder (8) is driven to rotate as a whole. During the rotation of the vertical cylinder (8), the placing frame (10) on the vertical cylinder (8) drives the serving plate to rotate, and the position of the fruits and vegetables can be adjusted. S2: During the rotation of the vertical cylinder (8), the gear (16) on the vertical cylinder (8) moves along the gear ring (17). When the gear (16) moves on the gear ring (17), the gear (16) itself rotates. The gear (16) is arranged on the vertical rod (21). The vertical rod (21) can rotate along with the gear (16). During the rotation of the vertical rod (21), the first worm gear (22) drives the entire base (11). As the rotation direction of the vertical cylinder (8) changes, the base (11) can flip back and forth. After the flipping angle is controlled, the fruits and vegetables on the tray roll back and forth, and each surface of the fruits and vegetables can be dried by hot air. After the flipping angle is controlled, the fruits and vegetables will not collide with each other, thereby preventing the fruits and vegetables from being crushed.

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