Energy-saving low-temperature drying and baking room structure for dehydrating vegetables of multi-layer hanging rack type

Abstract

The present invention relates to the technical field of drying equipment. Specifically, it relates to an energy-saving low-temperature drying and baking room structure for multi-layer hanging rack type vegetable dehydration, which includes a drying box and a number of mobile vegetable placement racks regularly arranged inside the drying box. The mobile vegetable placement rack includes a reinforced bottom plate, a transmission part arranged inside the reinforced bottom plate, two groups of parallel placement mechanisms, and a connecting part arranged between the two groups of placement mechanisms. In this energy-saving low-temperature drying and baking room structure for multi-layer hanging rack type vegetable dehydration, when the placement shaft rotates, the spiral hanging rack, through its own spiral curved surface structure, after rotation, can form a spiral upward airflow from bottom to top between adjacent vegetables. At the same time, this mode can make the vegetables generate periodic swings, effectively reducing the problem of blockage of the hot air circulation path of the traditional fixed hanging rack. And it cooperates with the piston plate that reciprocates up and down inside the sealed cover body, thereby accelerating the flow of air, and thus accelerating the loss of moisture inside the vegetables and improving the drying effect.

Description

Technical Field

[0001] The present invention relates to the technical field of drying equipment, and more specifically, to an energy-saving low-temperature drying and baking room structure for multi-layer hanging rack type vegetable dehydration. Background Art

[0002] A vegetable drying device is a device that utilizes the principle of hot air circulation to quickly remove moisture from vegetables by controlling parameters such as temperature, humidity, and time. It has the characteristics of high efficiency, energy saving, uniform drying, and simple operation. It can effectively extend the shelf life of vegetables, increase added value, and expand sales channels. It is applicable to the drying treatment of various vegetables and is an indispensable part of modern agricultural production.

[0003] The patent with application number CN202420002120.4 discloses a vegetable drying device, which includes a bottom plate. Above the bottom plate, there is a box body, and a box door is also arranged on the box body. On the bottom plate on one side of the bottom of the box body, a support shaft is fixed, and a support tube is also fixed at the bottom of the box body. The support shaft passes through the corresponding support tube and is rotatably connected to the support tube. On the other side of the bottom of the box body, a positioning shaft is also fixed. On the bottom plate, there are also multiple hydraulic cylinders rotatably connected to the bottom plate. The ends of the piston rods of the hydraulic cylinders are all fixed with positioning blocks, and the positioning blocks are connected to the positioning shaft through push rods. An air inlet pipe connected to a hot air blower is fixed on the box body, and multiple air distribution plates are evenly fixed inside the box body.

[0004] However, the material loading systems of current mainstream vegetable drying devices mostly adopt a static stacking type shelf structure or a parallel array type hanging rod structure. Such traditional designs have significant technical limitations. When processing leafy vegetables with a high specific surface area, such as crown daisy and Chinese cabbage, due to the local moisture accumulation caused by the leaf stacking effect, there is a significant gradient difference in moisture between the surface and the interior. The rigid fixed material layout will form a fluid boundary layer blocking effect, which can reduce the air flow rate in the drying chamber, block the hot air circulation path, and thus reduce the drying effect of the overall device.

[0005] In view of this, we propose an energy-saving low-temperature drying and baking room structure for multi-layer hanging rack type vegetable dehydration. Summary of the Invention

[0006] The purpose of the present invention is to provide an energy-saving low-temperature drying and baking room structure for multi-layer hanging rack type vegetable dehydration to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] An energy-saving low-temperature drying and baking room structure for multi-layer hanging rack type vegetable dehydration, including a drying box and a number of movable vegetable placement racks regularly arranged inside the drying box. The drying box includes a fixed box body, heating components arranged on the inner side walls of the fixed box body, and a number of ventilation fans regularly distributed on the top surface of the fixed box body;

[0009] The drying box further includes a driving part arranged inside the fixed box body. The driving part includes a driving motor and a driving shaft arranged on the output shaft of the driving motor;

[0010] The movable vegetable placing rack includes a reinforcing bottom plate, a transmission part arranged inside the reinforcing bottom plate, two groups of parallel placing mechanisms, and a connecting part arranged between the two groups of placing mechanisms;

[0011] The transmission part includes a transmission shaft, a group of worm wheels that rotate as the transmission shaft rotates, a plurality of regularly distributed limit bumps arranged at one end of the transmission shaft, and a docking shaft arranged at the other end. The docking shaft is sleeved with a plurality of limit bumps on another transmission shaft to transmit rotational motion;

[0012] The placing mechanism includes a placing shaft that rotates as the worm wheel rotates, a spiral hanging rack sleeved outside the placing shaft for hanging vegetables, a sealing cover body sleeved outside the placing shaft, and a piston plate arranged inside the sealing cover body. An air inlet valve is arranged at a position close to the top of the outer side wall of the sealing cover body. A plurality of regularly distributed air outlet nozzles are clamped on the top surface of the sealing cover body. A bidirectional thread groove is formed on the outer side wall of the placing shaft inside the sealing cover body. After the placing shaft rotates, it drives the piston plate to reciprocate up and down inside the sealing cover body, and cooperates with the air inlet valve and the air outlet nozzles to generate an upward airflow inside the spiral hanging rack, accelerating the loss of moisture inside the vegetables and drying them.

[0013] In the technical solution of the present invention, two parallel limit sliding grooves are formed on the inner bottom surface of the fixed box body. The heating component and the ventilation fan are both fixedly connected to the inner side wall of the fixed box body by bolts. An observation window is adhesively fixed to the open end inside the fixed box body.

[0014] In the technical solution of the present invention, the driving motor is fixedly connected to the inner bottom surface of the fixed box body by bolts. The driving shaft is coaxially connected to the output shaft of the driving motor. A plurality of regularly distributed and internally and externally penetrating shaft body slots are formed on the outer side wall of the driving shaft.

[0015] In the technical solution of the present invention, a space for placing the transmission part and the connecting part is formed inside the reinforcing bottom plate. Moving pulleys are fixedly connected to the bottom corners of the reinforcing bottom plate by bolts. The moving pulleys are slidably connected to the limit sliding grooves to limit the moving range of the reinforcing bottom plate.

[0016] In the technical solution of the present invention, the transmission shaft is rotatably connected to the inner side wall of the reinforcing bottom plate. One end of the transmission shaft extends to the outside of the reinforcing bottom plate and a plurality of regularly distributed placement grooves for placing the limit bumps are formed at the end. A worm meshing with the worm wheel is sleeved on the outer side wall of the transmission shaft.

[0017] In the technical solution of the present invention, the limiting bump is slidably connected to the inner side of the placement groove. A number of regularly distributed pressure springs are welded to the bottom surface of the limiting bump, and the bottom ends of the pressure springs are welded to the inner groove wall of the placement groove.

[0018] In the technical solution of the present invention, the elastic force provided by the pressure spring pushes the limiting bump to move outwards. A number of docking grooves, which are the same in number, corresponding in position one by one and adapted in size to the limiting bumps, are formed on the outer side wall of the docking shaft. After the shaft body of the limiting bump extends into the driving shaft and is grooved, when the driving shaft rotates driven by the driving motor, the transmission shaft as a whole rotates.

[0019] In the technical solution of the present invention, the bottom end of the placement shaft is rotatably connected to the bottom surface of the strengthening base plate. The worm gear is fixedly connected to the outer side wall of the placement shaft through a retaining pin. A number of regularly distributed connecting rods are welded and fixed between the placement shaft and the spiral hanging rack. A number of regularly distributed rack body openings for providing hanging bases for vegetables are formed on the spiral hanging rack. While the spiral hanging rack rotates with the placement shaft, it disturbs the air inside the fixed box body to flow from bottom to top.

[0020] In the technical solution of the present invention, the sealing cover body is snap-fitted and fixed to the top surface of the strengthening base plate. A number of regularly distributed ventilation holes are formed at the bottom of the outer side wall of the sealing cover body. The piston plate is sleeved on the outer side of the double-threaded groove and is adapted in size to the inner size of the piston plate. Both the air inlet valve and the air outlet nozzle are threadedly connected to the outer side wall of the sealing cover body.

[0021] In the technical solution of the present invention, the connecting part includes a pulley fixedly connected to the outer side wall of the transmission shaft through a retaining pin and a transmission belt sleeved on the outer sides of a number of pulleys. After one group of pulleys rotates, the transmission belt transmits power and drives the other group of pulleys to rotate accordingly.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. For the energy-saving low-temperature drying and baking room structure for multi-layer hanging rack type vegetables, when the placement shaft rotates, the spiral hanging rack, through its own spiral curved surface structure, after rotation, can form a spiral upward air flow from bottom to top between adjacent vegetables. At the same time, this mode can make the vegetables swing periodically, effectively reducing the problem that the hot air circulation path of the traditional fixed hanging rack is blocked, and cooperating with the piston plate that reciprocates up and down inside the sealing cover body, thereby accelerating the flow of the air flow, and thus accelerating the loss of moisture inside the vegetables and improving the drying effect.

[0024] 2. The energy-saving low-temperature drying and baking room structure for multi-layer hanging vegetable dehydration has a transmission part inside each of the multiple movable vegetable placement racks. After the transmission shafts in two adjacent transmission parts are sleeved with each other and cooperate with the connection part, multiple placement shafts can rotate simultaneously, reducing the investment in additional driving equipment. Brief Description of the Drawings

[0025] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 is a sectional schematic diagram of the overall structure of the present invention;

[0027] Figure 3 is a sectional schematic diagram of the structure of the drying box in the present invention;

[0028] Figure 4 is a disassembled schematic diagram of the structure of the driving part in the present invention;

[0029] Figure 5 is a sectional schematic diagram of the structure of the movable vegetable placement rack in the present invention;

[0030] Figure 6 is a schematic diagram of the structure of the transmission part in the present invention;

[0031] Figure 7 For the present invention Figure 6 is an enlarged schematic diagram of part A;

[0032] Figure 8 is a schematic diagram of the structure of the placement mechanism in the present invention;

[0033] Figure 9 is a partial schematic diagram of the structure of the placement mechanism in the present invention;

[0034] Figure 10 is a schematic diagram of the structure of the connection part in the present invention;

[0035] Description of the Reference Numerals:

[0036] 100, drying box; 110, fixed box body; 111, limit sliding groove; 120, heating component; 130, ventilation fan; 140, observation window; 150, driving part; 151, driving motor; 152, driving shaft; 1520, shaft body slotting;

[0037] 200, Mobile vegetable rack; 210, Reinforced bottom plate; 220, Mobile pulley; 230, Transmission part; 231, Transmission shaft; 2310, Placement groove; 232, Worm; 233, Worm gear; 234, Limit projection; 235, Pressure spring; 236, Docking shaft; 2360, Docking groove; 240, Placement mechanism; 241, Placement shaft; 2410, Double-threaded groove; 242, Spiral hanger; 2420, Frame opening; 243, Connecting rod; 244, Sealing cover; 245, Piston plate; 246, Intake valve; 247, Air outlet nozzle; 250, Connecting part; 251, Pulley; 252, Transmission belt. Detailed implementation mode

[0038] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0039] Please refer to Figures 1 - 10 As shown, the present embodiment provides a technical solution:

[0040] The multi-layer hanger type energy-saving low-temperature drying and baking room structure for vegetable dehydration includes a drying box 100 and a number of mobile vegetable racks 200 regularly arranged inside the drying box 100. The drying box 100 includes a fixed box body 110, a heating component 120 arranged on the inner side wall of the fixed box body 110, and a number of ventilation fans 130 regularly distributed on the top surface of the fixed box body 110;

[0041] In this embodiment, as Figures 3 - 4 shown, the drying box 100 further includes a driving part 150 arranged inside the fixed box body 110. The driving part 150 includes a driving motor 151 and a driving shaft 152 arranged on the output shaft of the driving motor 151.

[0042] Specifically, two parallel limit sliding grooves 111 are opened on the inner bottom surface of the fixed box body 110. The heating component 120 and the ventilation fan 130 are both fixedly connected to the inner side wall of the fixed box body 110 by bolts. An observation window 140 is adhesively fixed to the inner side of one open end of the fixed box body 110.

[0043] Furthermore, the driving motor 151 is fixedly connected to the inner bottom surface of the fixed box body 110 by bolts. The driving shaft 152 is coaxially connected to the output shaft of the driving motor 151. A number of regularly distributed and internally and externally penetrating shaft body slots 1520 are opened on the outer side wall of the driving shaft 152.

[0044] Further, a pair of cabinet doors are hinged to one open side of the fixed cabinet 110. After the heating component 120 is activated, it is used to heat the internal temperature of the fixed cabinet 110. The ventilation fan 130 is used to discharge the moisture of the vegetables from the inside of the fixed cabinet 110. The observation window 140 is used to facilitate the operator to observe the internal situation of the fixed cabinet 110. After the drive motor 151 is activated, it drives the drive shaft 152 to rotate.

[0045] In this embodiment, as Figure 5 shown, the movable vegetable rack 200 includes a reinforced bottom plate 210, a transmission part 230 arranged inside the reinforced bottom plate 210, two groups of parallel placement mechanisms 240, and a connecting part 250 arranged between the two groups of placement mechanisms 240.

[0046] Specifically, a space for placing the transmission part 230 and the connecting part 250 is provided inside the reinforced bottom plate 210. Movable pulleys 220 are fixedly connected to the bottom corner positions of the bottom surface of the reinforced bottom plate 210 through bolts. The movable pulleys 220 are slidably connected to the limit chute 111 to limit the movement range of the reinforced bottom plate 210.

[0047] Further, the reinforced bottom plate 210 is used to ensure the strength of the movable vegetable rack 200, and the movable pulleys 220 are used to facilitate the movement of the reinforced bottom plates 210.

[0048] In this embodiment, as Figures 6 - 7 shown, the transmission part 230 includes a transmission shaft 231, a group of worm wheels 233 that rotate as the transmission shaft 231 rotates, a plurality of regularly distributed limit bumps 234 are provided at one end of the transmission shaft 231, and a docking shaft 236 is provided at the other end. The docking shaft 236 is sleeved with a plurality of limit bumps 234 on another transmission shaft 231 to transmit rotational motion.

[0049] Specifically, the transmission shaft 231 is rotatably connected to the inner side wall of the reinforced bottom plate 210. One end of the transmission shaft 231 extends to the outside of the reinforced bottom plate 210 and a plurality of regularly distributed placement grooves 2310 for placing the limit bumps 234 are provided at the end. A worm 232 meshing with the worm wheel 233 is sleeved on the outer side wall of the transmission shaft 231.

[0050] Further, the limit bumps 234 are slidably connected to the inside of the placement groove 2310. A plurality of regularly distributed pressure springs 235 are welded to the bottom surface of the limit bumps 234. The bottom ends of the pressure springs 235 are welded to the inner groove wall of the placement groove 2310.

[0051] Further, the elastic force provided by the pressure spring 235 pushes the limit lug 234 to move outward. A number of docking grooves 2360 are provided on the outer side wall of the docking shaft 236, which are the same in number, in one-to-one correspondence in position, and adapted in size to the limit lug 234. After the limit lug 234 extends into the shaft body slot 1520 inside the drive shaft 152, when the drive shaft 152 rotates driven by the drive motor 151, the entire drive shaft 231 rotates.

[0052] Further, after the drive shaft 231 rotates, the two worms 232 on its outer side wall also rotate accordingly, driving the two worm wheels 233 to rotate together. Under the action of the pressure spring 235, the limit lug 234 extends to the outside of the placement groove 2310 and extends into the docking groove 2360 of another docking shaft 236, causing multiple drive shafts 231 to rotate simultaneously.

[0053] In this embodiment, as Figures 8 - 9 shown, the placement mechanism 240 includes a placement shaft 241 that rotates with the rotation of the worm wheel 233, a spiral hanger 242 sleeved on the outside of the placement shaft 241 for hanging vegetables, a sealing cover body 244 sleeved on the outside of the placement shaft 241, and a piston plate 245 provided inside the sealing cover body 244. An air inlet valve 246 is provided at a position near the top of the outer side wall of the sealing cover body 244, and a number of regularly distributed air outlet nozzles 247 are clamped on the top surface of the sealing cover body 244. A bidirectional thread groove 2410 is provided on the outer side wall of the placement shaft 241 inside the sealing cover body 244. After the placement shaft 241 rotates, it drives the piston plate 245 to reciprocate up and down inside the sealing cover body 244, and in cooperation with the air inlet valve 246 and the air outlet nozzles 247, an upward airflow is generated inside the spiral hanger 242 to accelerate the loss of moisture inside the vegetables and make them dry.

[0054] Specifically, the bottom end of the placement shaft 241 is rotatably connected to the bottom surface of the strengthening bottom plate 210. The worm wheel 233 is fixedly connected to the outer side wall of the placement shaft 241 through a snap pin. A number of regularly distributed connecting rods 243 are welded and fixed between the placement shaft 241 and the spiral hanger 242. A number of regularly distributed frame body openings 2420 for providing hanging bases for vegetables are provided on the spiral hanger 242. While the spiral hanger 242 rotates with the placement shaft 241, it disturbs the air inside the fixed box body 110 to flow upward.

[0055] Further, the sealing cover body 244 is clamped and fixed on the top surface of the strengthening bottom plate 210. A number of regularly distributed ventilation holes are provided at the bottom of the outer side wall of the sealing cover body 244. The piston plate 245 is sleeved on the outside of the bidirectional thread groove 2410 and is adapted in size to the inner side size of the piston plate 245. Both the air inlet valve 246 and the air outlet nozzles 247 are threadedly connected to the outer side wall of the sealing cover body 244.

[0056] Furthermore, when the worm gear 233 rotates, it drives the placement shaft 241 to rotate, causing the spiral hanger 242 for placing vegetables to rotate. Due to the spiral structure of the spiral hanger 242 itself, after it rotates, the air flow between the vegetables will flow upward. The piston plate 245 sleeved outside the double-thread groove 2410 will also move up and down reciprocally inside the sealing cover 244 after the placement shaft 241 rotates, allowing the air flow to enter the inside of the sealing cover 244 through the air inlet valve 246 and then be ejected from a number of air outlet nozzles 247, thereby accelerating the air flow inside the spiral hanger 242.

[0057] In this embodiment, as Figure 10 shown, the connecting portion 250 includes a pulley 251 fixedly connected to the outer side wall of the transmission shaft 231 through a snap pin and a transmission belt 252 sleeved outside a number of pulleys 251. After one group of pulleys 251 rotates, the transmission belt 252 transmits the power and drives the other group of pulleys 251 to rotate accordingly.

[0058] Furthermore, a number of pulleys 251 are used to cooperate with the transmission belt 252 so that after one group of placement shafts 241 rotates, the other group of placement shafts 241 will rotate simultaneously.

[0059] Finally, it should be noted that the heating component 120, the ventilation fan 130, and the drive motor 151 involved in the present invention are all common standard parts or parts known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or by conventional experimental methods. At the idle place of this device, the heating component 120, the ventilation fan 130, and the drive motor 151 are connected to an external power source through wires. The specific connection means should refer to the working principle in the present invention, and the electrical components are electrically connected in accordance with the sequence of their subsequent working order. Their detailed connection means are all well-known technologies in the art.

[0060] When the energy-saving low-temperature drying and baking room structure with a multi-layer hanger type for vegetable dehydration of the present invention is in use, open the door of the fixed box 110, and successively push the movable vegetable placement rack 200 full of vegetables into the inside of the fixed box 110, and insert a number of limit protrusions 234 of the transmission portion 230 in the innermost movable vegetable placement rack 200 into the inside of the drive shaft 152;

[0061] Subsequently, close the door of the fixed box 110, turn on the heating component 120 and the ventilation fan 130. After the temperature inside the fixed box 110 rises, start the drive motor 151 to drive the drive shaft 152 to rotate;

[0062] Subsequently, the rotation of the drive shaft 152 drives the rotation of the transmission shaft 231 in the transmission part 230. Then, the rotation of the two worms 232 drives the rotation of the worm wheels 233 sleeved outside a group of placement shafts 241, and drives a group of placement shafts 241 to rotate.

[0063] After a group of placement shafts 241 rotate, the pulley 251 sleeved on the outer wall thereof rotates accordingly. Through the transmission belt 252, it further drives another group of pulleys 251 to rotate simultaneously.

[0064] When the placement shaft 241 rotates, through the connecting rod 243, it drives the entire spiral hanger 242 to rotate, causing the airflow generated among the several vegetables hung thereon to move from top to bottom, making the vegetables move, reducing the influence of the leaf stacking effect on drying. The piston plate 245 sleeved outside the double-threaded groove 2410 will reciprocate up and down inside the sealing cover 244.

[0065] When the piston plate 245 moves downward, the airflow outside the sealing cover 244 enters the inside of the sealing cover 244 through the air inlet valve 246. After the piston plate 245 moves upward, the airflow is ejected from the air outlet nozzle 247, accelerating the flow rate of the airflow inside the spiral hanger 242, reducing the problem of obstruction in the hot air circulation path, and accelerating the loss of moisture inside the vegetables.

[0066] The foregoing description of the specific exemplary embodiments of the present invention is for the purposes of illustration and exemplification. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made in accordance with the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize various different exemplary embodiments of the present invention, as well as various different selections and changes. The scope of the present invention is intended to be defined by the specification and its equivalents.

Claims

1. Energy-saving low-temperature drying and baking room structure for multi-layer hanging rack type vegetable dehydration, including a drying box (100) and a number of movable vegetable placement racks (200) regularly arranged inside the drying box (100). The drying box (100) includes a fixed box body (110), a heating component (120) arranged on the inner side wall of the fixed box body (110), and a number of ventilation fans (130) regularly distributed on the top surface of the fixed box body (110). It is characterized in that: The drying box (100) further includes a driving part (150) arranged inside the fixed box body (110). The driving part (150) includes a driving motor (151) and a driving shaft (152) arranged on the output shaft of the driving motor (151). The movable vegetable placement rack (200) includes a reinforced bottom plate (210), a transmission part (230) arranged inside the reinforced bottom plate (210), two groups of parallel placement mechanisms (240), and a connecting part (250) arranged between the two groups of placement mechanisms (240). The transmission part (230) includes a transmission shaft (231), a group of worm wheels (233) that rotate as the transmission shaft (231) rotates. One end of the transmission shaft (231) is provided with a number of regularly distributed limiting protrusions (234), and the other end is provided with a docking shaft (236). The docking shaft (236) is sleeved with a number of limiting protrusions (234) on another transmission shaft (231) to transmit rotational motion. The placement mechanism (240) includes a placement shaft (241) that rotates as the worm wheel (233) rotates, a spiral hanging rack (242) sleeved on the outside of the placement shaft (241) for hanging vegetables, a sealing cover body (244) sleeved on the outside of the placement shaft (241), and a piston plate (245) arranged inside the sealing cover body (244). An air inlet valve (246) is arranged at a position near the top of the outer side wall of the sealing cover body (244). A number of regularly distributed air outlet nozzles (247) are clamped on the top surface of the sealing cover body (244). A bidirectional thread groove (2410) is opened on the outer side wall of the placement shaft (241) inside the sealing cover body (244). After the placement shaft (241) rotates, it drives the piston plate (245) to reciprocate up and down inside the sealing cover body (244), and cooperates with the air inlet valve (246) and the air outlet nozzles (247) to generate an upward airflow inside the spiral hanging rack (242), accelerating the loss of moisture inside the vegetables and making them dry.

2. The structure of the energy-saving low-temperature drying and baking room for dehydrating vegetables of the multi-layer hanging rack type according to claim 1, wherein: Two parallel limiting chutes (111) are opened on the inner bottom surface of the fixed box body (110). The heating component (120) and the ventilation fan (130) are both fixedly connected to the inner side wall of the fixed box body (110) by bolts. An observation window (140) is adhesively fixed to the open inner side at one end of the fixed box body (110).

3. The structure of the energy-saving low-temperature drying and baking room for dehydrating vegetables in a multi-layer hanging rack type according to claim 1, characterized in that: The driving motor (151) is fixedly connected to the inner bottom surface of the fixed box body (110) by bolts. The driving shaft (152) is coaxially connected to the output shaft of the driving motor (151). A plurality of regularly distributed and internally and externally penetrating shaft body slots (1520) are formed on the outer side wall of the driving shaft (152).

4. The structure of the energy-saving low-temperature drying and baking room for dehydrating vegetables of the multi-layer hanging rack type according to claim 1, characterized in that: A space for placing the transmission part (230) and the connecting part (250) is formed inside the reinforcing bottom plate (210). Moving pulleys (220) are fixedly connected to the bottom corner positions of the bottom surface of the reinforcing bottom plate (210) by bolts. The moving pulleys (220) are slidably connected to the limit sliding grooves (111) to limit the moving range of the reinforcing bottom plate (210).

5. The structure of the energy-saving low-temperature drying and baking room for dehydrating vegetables of the multi-layer hanging rack type according to claim 1, characterized in that: The transmission shaft (231) is rotatably connected to the inner side wall of the reinforcing bottom plate (210). One end of the transmission shaft (231) extends to the outside of the reinforcing bottom plate (210), and a plurality of regularly distributed placement grooves (2310) for placing the limit bumps (234) are formed at the end. A worm (232) meshing with the worm gear (233) is sleeved on the outer side wall of the transmission shaft (231).

6. The structure of the energy-saving low-temperature drying and baking room for dehydrating vegetables in a multi-layer hanging rack type according to claim 1, characterized in that: The limit bumps (234) are slidably connected to the inside of the placement grooves (2310). A plurality of regularly distributed pressure springs (235) are welded to the bottom surface of the limit bumps (234). The bottom ends of the pressure springs (235) are welded to the inner groove wall of the placement grooves (2310).

7. The structure of the energy-saving low-temperature drying and baking room for dehydrating vegetables of the multi-layer hanging rack type according to claim 6, characterized in that: The elastic force provided by the pressure springs (235) pushes the limit bumps (234) to move outwards. A plurality of docking grooves (2360) with the same number, corresponding positions and matching sizes as the limit bumps (234) are formed on the outer side wall of the docking shaft (236). After the limit bumps (234) extend into the shaft body slots (1520) inside the driving shaft (152), when the driving shaft (152) rotates driven by the driving motor (151), the whole transmission shaft (231) rotates.

8. The structure of the energy-saving low-temperature drying and baking room for dehydrating vegetables of the multi-layer hanging rack type according to claim 1, characterized in that: The bottom end of the placement shaft (241) is rotatably connected to the bottom surface of the reinforcing bottom plate (210). The worm gear (233) is fixedly connected to the outer side wall of the placement shaft (241) by a retaining pin. A plurality of regularly distributed connecting rods (243) are welded and fixed between the placement shaft (241) and the spiral hanging rack (242). A plurality of regularly distributed rack body openings (2420) for providing hanging points for vegetables are formed on the spiral hanging rack (242). While the spiral hanging rack (242) rotates with the placement shaft (241), the air inside the fixed box body (110) is disturbed to flow from bottom to top.

9. The structure of the energy-saving low-temperature drying and baking room for dehydrating vegetables of the multi-layer hanging rack type according to claim 1, wherein: The sealing cover body (244) is snap-fitted and fixed to the top surface of the reinforcing bottom plate (210). A plurality of regularly distributed ventilation holes are formed at the bottom of the outer side wall of the sealing cover body (244). The piston plate (245) is sleeved on the outside of the bidirectional thread groove (2410) and has a size adapted to the inner size of the piston plate (245). The intake valve (246) and the air outlet nozzle (247) are both threadedly connected to the outer side wall of the sealing cover body (244).

10. The structure of the energy-saving low-temperature drying and baking room for dehydrating vegetables of the multi-layer hanging rack type according to claim 1, characterized in that: The connecting part (250) includes a pulley (251) fixedly connected to the outer wall of the transmission shaft (231) by a snap pin and a transmission belt (252) sleeved outside a plurality of pulleys (251). After one set of pulleys (251) rotates, the transmission belt (252) transmits power to drive the other set of pulleys (251) to rotate accordingly.

Images