Rapid air-drying device for food

By designing an automatic food drying device with automatic turning function, the problem of time-consuming and laborious manual turning during the food drying process is solved, achieving efficient and uniform food drying results.

CN224162902UActive Publication Date: 2026-04-24CHENGE (CHONGQING) FOOD TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGE (CHONGQING) FOOD TECHNOLOGY CO LTD
Filing Date
2025-05-28
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

In the current food drying process, the turning of ingredients needs to be done frequently and manually, which is time-consuming and labor-intensive, and the drying is uneven.

Method used

A rapid food drying device was designed. The device utilizes a rack assembly driven by a first motor to flip the rack, and a second motor drives the placement plates to move closer or further apart to achieve automatic flipping. Combined with a hot air mechanism, the device performs continuous drying, achieving alternating drying on both sides.

Benefits of technology

It achieves automated flipping, improving drying efficiency and quality. No manual flipping is required, saving time and effort and ensuring that the food dries evenly.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a fast food air-drying device which comprises an air-drying box, a storage rack assembly is arranged in the air-drying box, an air inlet window is arranged on one side face of the air-drying box and connected with a hot air mechanism, an air outlet window is arranged on the other side face of the air-drying box, the storage rack assembly is driven by a first motor, and the storage rack assembly is driven by a second motor. And the storage rack assembly comprises a U-shaped frame, a first storage plate and a second storage plate, a second motor is installed on the U-shaped frame, an output shaft of the second motor is fixedly connected with a two-way lead screw, a sliding rod is arranged on one side of the two-way lead screw, and the two-way lead screw and the sliding rod both penetrate through the first sliding base and the second sliding base. The storage rack assembly can be turned over under the driving of the first motor, double-face alternate air drying is achieved by turning over food for multiple times, air drying efficiency and air drying quality are improved, manual turning over is not needed, and time and labor are saved.
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Description

Technical Field

[0001] This utility model relates to the field of food drying technology, specifically a food rapid drying device. Background Technology

[0002] Food drying is a processing method that removes moisture from food through natural or artificial means, aiming to extend shelf life, improve taste, or facilitate storage. The basic principle of food drying is to inhibit the growth of microorganisms (such as bacteria and mold) by reducing the moisture content of food (usually to below 15%), thereby delaying spoilage. Air-dried food has a dry texture and a more concentrated flavor. Food drying is a simple and effective preservation technique suitable for home preparation or industrial production.

[0003] For some ingredients, such as meat or fruit and vegetable slices, they tend to curl or shrink when air-drying. Turning them over can keep them flat. Since the surface and interior of the ingredients evaporate moisture at different rates, turning them over can improve the uniformity of air drying, thereby improving the taste. Currently, the turning process is mostly done manually at timed intervals, which requires frequent manual turning, which is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of this invention is to provide a rapid food drying device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a food rapid air-drying device, comprising an air-drying box, wherein the air-drying box has a built-in shelf assembly, an air inlet window is provided on one side of the air-drying box and the air inlet window is connected to a hot air mechanism, and an air outlet window is provided on the other side of the air-drying box. The shelf assembly is driven by a first motor, and the shelf assembly includes a U-shaped frame, a first placement plate and a second placement plate. A second motor is installed on the U-shaped frame, and the output shaft of the second motor is fixedly connected to a bidirectional lead screw. A slide rod is provided on one side of the bidirectional lead screw, and both the bidirectional lead screw and the slide rod pass through a first slide block and a second slide block.

[0006] The U-shaped frame is welded and fixed with a connecting shaft, and the connecting shaft is connected to the drying box through a bearing. The first motor is installed and fixed on the rear end face of the drying box, and the output shaft of the first motor is fixedly connected to the connecting shaft through a coupling.

[0007] The first slide is provided with a first fixing sleeve, and the first placement plate includes a first fixing shaft, with an interference fit between the first fixing shaft and the first fixing sleeve.

[0008] The second slide is provided with a second fixing sleeve, and the second placement plate includes a second fixing shaft, with an interference fit between the second fixing shaft and the second fixing sleeve.

[0009] The hot air mechanism includes an air collecting hood, a heating box is arranged on the outside of the air collecting hood, a fan is arranged on the outside of the heating box, and a filter box is arranged on the outside of the fan.

[0010] The heating box contains an electric heating element.

[0011] A temperature controller is installed on the outer surface of the heating box.

[0012] The filter box contains a filter element.

[0013] The drying box has a door hinged to its front end, and the door has a viewing window.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The storage rack assembly of this utility model can be flipped under the drive of the first motor. The second motor drives the two sets of placement plates to move closer together to limit the food and prevent it from falling during the flipping. The storage rack assembly is rotated by the first motor, flipping 180 degrees to flip the food over. After flipping, the two sets of placement plates move away from each other. By flipping the food multiple times, the food can be dried alternately on both sides, thereby improving the drying efficiency and drying quality. There is no need to flip the food manually, saving time and effort. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one side view of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure from another side view of the present invention;

[0018] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the shelf assembly of this utility model;

[0020] Figure 5 This is a schematic diagram of the heating box of this utility model.

[0021] In the diagram: 1. Drying box; 2. Shelf assembly; 3. Hot air mechanism; 4. First motor; 5. Box door; 11. Air inlet window; 12. Air outlet window; 21. U-shaped frame; 22. First placement plate; 23. Second placement plate; 24. Second motor; 25. Two-way lead screw; 26. Slide rod; 27. First slide block; 28. Second slide block; 211. Connecting shaft; 221. First fixed shaft; 231. Second fixed shaft; 271. First fixed sleeve; 281. Second fixed sleeve; 31. Air collector hood; 32. Heating box; 33. Fan; 34. Filter box; 321. Electric heating tube; 322. Thermostat; 51. Viewing window. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a food rapid air drying device, including an air drying box 1, an air drying box 1 with a built-in shelf assembly 2, an air inlet window 11 on one side of the air drying box 1 connected to a hot air mechanism 3, an air outlet window 12 on the other side of the air drying box 1, the shelf assembly 2 being driven by a first motor 4, the shelf assembly 2 including a U-shaped frame 21, a first placement plate 22 and a second placement plate 23, a second motor 24 mounted on the U-shaped frame 21, the output shaft of the second motor 24 being fixedly connected to a bidirectional lead screw 25, a slide rod 26 on one side of the bidirectional lead screw 25, and both the bidirectional lead screw 25 and the slide rod 26 passing through a first slide block 27 and a second slide block 28.

[0024] The food to be dried is laid flat on the placement plate below. The hot air mechanism 3 generates hot air, which enters the chamber of the drying box 1 through the air inlet 11 on one side, comes into contact with the food on the placement plate, and removes the internal moisture of the food. Finally, the hot air is discharged through the air outlet 12 on the other side. The hot air mechanism 3 continuously generates hot air to achieve continuous drying of the food.

[0025] When the first motor 4 is working, it can drive the shelf assembly 2 at one end to rotate. When the second motor 24 is working, it drives the bidirectional lead screw 25 at one end to rotate, thereby driving the first slide 27 and the second slide 28 to slide along the slide rod 26, driving the first slide 27 and the second slide 28 to move closer to each other or further away from each other. The first slide 27 drives the first placement plate 22 to move, and the second slide 28 drives the second placement plate 23 to move, thereby driving the first placement plate 22 and the second placement plate 23 to move closer to each other or further away from each other.

[0026] When food needs to be turned over, the second motor 24 drives the first placement plate 22 and the second placement plate 23 to move closer together to limit the food and prevent it from falling during the turning process. Then, the first motor 4 drives the rack assembly 2 to rotate 180 degrees to switch the positions of the first placement plate 22 and the second placement plate 23. After the switch is completed, the second motor 24 drives the first placement plate 22 and the second placement plate 23 to move away from each other to reduce obstruction of the food and achieve the turning of the food. By turning the food over multiple times, the food is dried alternately on both sides, thereby improving the drying efficiency and drying quality.

[0027] The U-shaped frame 21 is welded and fixed with a connecting shaft 211, and the connecting shaft 211 is connected to the drying box 1 through a bearing. The first motor 4 is installed and fixed on the rear end face of the drying box 1, and the output shaft of the first motor 4 is fixedly connected to the connecting shaft 211 through a coupling.

[0028] When the first motor 4 is working, it drives the connecting shaft 211 at one end, which in turn drives the shelf assembly 2 to move. The first motor 4 is located outside the drying box 1, and the second motor 24 is located inside the drying box 1. The second motor 24 is a high-temperature resistant motor, and hot air will not affect the normal operation of the second motor 24.

[0029] The first slide block 27 is provided with a first fixing sleeve 271, and the first placement plate 22 includes a first fixing shaft 221, with an interference fit between the first fixing shaft 221 and the first fixing sleeve 271.

[0030] The first placement plate 22 and the first slide block 27 are detachably connected. By applying a certain external force, the first fixed shaft 221 can be pulled out from the inside of the first fixed sleeve 271, making it convenient to pick up and put down the first placement plate 22.

[0031] The second slide block 28 is provided with a second fixing sleeve 281, and the second placement plate 23 includes a second fixing shaft 231, with an interference fit between the second fixing shaft 231 and the second fixing sleeve 281.

[0032] The second placement plate 23 and the second slide block 28 are detachably connected. By applying a certain external force, the second fixed shaft 231 can be pulled out from the inside of the second fixed sleeve 281, making it convenient to pick up and put down the second placement plate 23.

[0033] The hot air mechanism 3 includes an air collecting hood 31, a heating box 32 is arranged on the outside of the air collecting hood 31, a fan 33 is arranged on the outside of the heating box 32, and a filter box 34 is arranged on the outside of the fan 33. The fan 33 is used as a power source. When the fan 33 is working, it introduces fresh air from the outside. The fresh air is filtered by the filter box 34 and heated by the heating box 32 to form clean hot air. The hot air enters the drying box 1 to dry the food on the shelf assembly 2.

[0034] The heating box 32 contains an electric heating tube 321, and multiple sets of electric heating tubes 321 are provided. When the electric heating tube 321 is powered on, it heats the air.

[0035] A temperature controller 322 is installed on the outer surface of the heating box 32.

[0036] The drying box 1 has a built-in temperature sensor, which works in conjunction with the temperature controller 322. The temperature controller 322 controls the contactor, which in turn controls the opening and closing of the heating element 321. Each group of heating elements 321 is controlled by an independent contactor. By controlling the engagement of different contactors, the heating temperature is adjusted.

[0037] The filter box 34 contains a filter element, and the fresh air is filtered by the filter box 34 to improve the cleanliness.

[0038] The drying box 1 has a door 5 hinged to its front end, and a viewing window 51 is provided on the door 5. The door 5 is closed during the drying operation.

[0039] Working principle: During use, the food to be dried is laid flat on the placement plate at the bottom. During the drying process, the door 5 is closed, and the hot air mechanism 3 generates clean hot air. The clean hot air enters the chamber of the drying chamber 1 through the air inlet 11 on one side, comes into contact with the food on the placement plate, and removes the internal moisture of the food. Finally, the hot air is discharged through the air outlet 12 on the other side. The hot air mechanism 3 continuously generates hot air to achieve continuous drying of the food. The temperature of the drying hot air is controlled by the temperature controller 322. When it is necessary to turn the food over, the second motor 24 is activated. The first placement plate 22 and the second placement plate 23 are driven to move closer together to limit the food and prevent it from falling during flipping. Then, the first motor 4 drives the rack assembly 2 to rotate 180 degrees to change the positions of the first placement plate 22 and the second placement plate 23. After the change is completed, the second motor 24 drives the first placement plate 22 and the second placement plate 23 to move away from each other to reduce obstruction of the food and achieve the flipping of the food. By flipping the food multiple times, the food is dried alternately on both sides, thereby improving the drying efficiency and drying quality.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid food drying device, comprising a drying chamber (1), characterized in that: The drying box (1) has a built-in shelf assembly (2). An air inlet window (11) is provided on one side of the drying box (1), and the air inlet window (11) is connected to a hot air mechanism (3). An air outlet window (12) is provided on the other side of the drying box (1). The shelf assembly (2) is driven by a first motor (4). The shelf assembly (2) includes a U-shaped frame (21), a first placement plate (22), and a second placement plate (23). A second motor (24) is installed on the U-shaped frame (21). The output shaft of the second motor (24) is fixedly connected to a bidirectional lead screw (25). A slide rod (26) is provided on one side of the bidirectional lead screw (25). Both the bidirectional lead screw (25) and the slide rod (26) pass through the first slide block (27) and the second slide block (28).

2. The food rapid drying device according to claim 1, characterized in that: A connecting shaft (211) is welded and fixed on the U-shaped frame (21), and the connecting shaft (211) is connected to the drying box (1) through a bearing. The first motor (4) is installed and fixed on the rear end face of the drying box (1), and the output shaft of the first motor (4) is fixedly connected to the connecting shaft (211) through a coupling.

3. The food rapid drying device according to claim 1, characterized in that: The first slide (27) is provided with a first fixing sleeve (271), and the first placement plate (22) includes a first fixing shaft (221), and the first fixing shaft (221) and the first fixing sleeve (271) are interference-fitted.

4. The food rapid drying device according to claim 1, characterized in that: The second slide (28) is provided with a second fixing sleeve (281), and the second placement plate (23) includes a second fixing shaft (231), and the second fixing shaft (231) and the second fixing sleeve (281) are interference-fitted.

5. The food rapid drying device according to claim 1, characterized in that: The hot air mechanism (3) includes an air collecting hood (31), a heating box (32) is provided on the outside of the air collecting hood (31), a fan (33) is provided on the outside of the heating box (32), and a filter box (34) is provided on the outside of the fan (33).

6. The food rapid drying device according to claim 5, characterized in that: The heating box (32) is equipped with an electric heating element (321).

7. A rapid food drying device according to claim 6, characterized in that: A temperature controller (322) is installed on the outer side of the heating box (32).

8. A rapid food drying device according to claim 7, characterized in that: The filter box (34) contains a filter element.

9. A rapid food drying device according to claim 1, characterized in that: The front end of the drying box (1) is hinged with a door (5), and a viewing window (51) is provided on the door (5).