A rapid drying hot air circulation oven
By using adjustable storage components and a rotary motor to drive the tray to rotate, combined with a stirring tube and an air outlet to deliver hot air, the problem of poor flexibility and low drying efficiency of materials in the middle of existing hot air circulating ovens is solved, achieving uniform and efficient drying of materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 青岛锐捷科技包装有限公司
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-03
AI Technical Summary
Existing hot air circulating ovens have a simple structure and fixed perforated plate positions, making it difficult to adjust according to material size, resulting in poor operational flexibility. Furthermore, hot air can only blow from the outside to the inside, leading to low drying efficiency for materials in the middle.
An adjustable storage assembly was designed, including a support rod and a tray. The position of the tray can be adjusted by adjusting the nut, and the tray is driven to rotate by a rotary motor. Hot air is delivered through a stirring tube and an air outlet to achieve agitation and uniform drying of the material.
It improves the flexibility and efficiency of drying, ensures uniform drying of materials, prevents accumulation and falling, and enhances the overall drying effect.
Smart Images

Figure CN224455329U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of hot air circulating oven technology, specifically a hot air circulating oven for rapid drying. Background Technology
[0002] A hot air circulating oven is essentially a drying device that uses forced hot air flow to accelerate moisture evaporation. After the material is placed in, the moisture in the material can be evaporated by controlling the temperature of the drying air and the drying time, thus achieving the purpose of drying. It is widely used for dehumidification of raw materials or products in industries such as pharmaceuticals, chemicals, food, and light industry.
[0003] Chinese patent provides a hot air circulating oven for rapid drying, publication number CN214095220U, which includes a hot air circulating oven. The inner cavity of the hot air circulating oven is equipped with a concave plate. The inner sidewalls of the concave plate are fixedly connected to a support plate. The inner cavity of the support plate is equipped with an inner rod. The outer sidewall of the inner rod is fixedly connected to a through-hole plate.
[0004] The aforementioned drying oven allows the inner rod to slide within the support plate cavity by pulling, changing the position of the perforated plate. This facilitates the fitting of the items to be dried, preventing them from shaking or moving. It also provides a limit to prevent items from piling up due to the hot air blowing, thus avoiding affecting the overall drying efficiency.
[0005] However, its structure is relatively simple. It supports the material by using a perforated plate and a support block. However, the position of the perforated plate is fixed, and it is difficult to adjust the position of the perforated plate according to the size of the material to be dried. This results in poor flexibility of use. At the same time, although it can prevent the material from piling up in one place, the material is in a static state, and the hot air can only blow from the outside to the inside. The drying efficiency of the material in the middle of the tray is relatively slow. Utility Model Content
[0006] The purpose of this invention is to provide a hot air circulating drying oven for rapid drying, which can effectively solve the problems in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A rapid drying hot air circulating oven includes a hot air circulating box body, a bottom box is provided at the bottom of the hot air circulating box body, a sealed box door is movably installed at the front end of the hot air circulating box body, and a storage component is provided inside the hot air circulating box body.
[0009] The storage assembly has two support rods. Rotary seats are rotatably installed on both sides of the interior of the hot air circulation box body. The two support rods are respectively installed on the top of the rotary seats. Several trays are slidably installed on the outer ring of the support rods. The outer ring of the support rods is provided with external threads. An adjusting nut is threadedly connected to the upper and lower ends of each tray on the outer ring of the support rods. A retaining edge is fixedly connected to the top surface of the tray. A rotary motor is installed on both sides of the interior of the bottom box, and the drive shaft of the rotary motor is connected to the bottom end of the rotary seat.
[0010] Preferably, a sealing ring is provided at the connection between the rotating seat and the hot air circulation box body, and a water collection tray is provided at the lower position of the outer ring of the support rod.
[0011] Preferably, a plurality of water-permeable holes are provided through the upper and lower ends of the tray, and a plurality of air vents are provided through both sides of the baffle, and the outer walls of the tray and the baffle are coated with a hydrophobic coating.
[0012] Preferably, two mounting rods are installed near the center of the top of the hot air circulating air box body. Several air supply pipes are slidably installed on the outer ring of the two mounting rods through several sliding blocks, and the number of air supply pipes matches the number of trays. A diversion ring pipe is fixedly connected to the end of the air supply pipe away from the mounting rod. Several stirring hard pipes are fixedly installed on the outer ring of the diversion ring pipe. Several air outlets are connected to the bottom end of the stirring hard pipes through an extension rod.
[0013] Preferably, the outer ring of the mounting rod is provided with external threads, and the outer ring of the mounting rod is threaded with adjusting nuts at the upper and lower ends of each sliding block.
[0014] Preferably, the diversion ring is arranged in a circular shape, the diversion ring is sleeved on the outer ring of the support rod, the bottom surface of the air outlet is in contact with the top surface of the tray, and the air outlet and the tray are slidably connected.
[0015] Preferably, the outer ring of the air outlet is provided with several air vents, and the air supply pipe, the diversion ring pipe, and the stirring hard pipe are all hollow pipes, and the top of the air supply pipe is connected to the side of the mounting rod.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This invention features a storage component that allows for adjustment of multiple trays on the support rod by turning an adjusting nut when placing materials. This allows for adjustment based on the size of the materials to be dried, providing high flexibility. Furthermore, the included water collection tray collects water droplets falling from the trays, preventing residual water from accumulating inside the hot air circulation box.
[0018] By setting up a tray in conjunction with a rotary motor, the support rod can be driven to rotate the tray slowly during drying by adjusting the speed of the rotary motor drive shaft. This causes the material to move around. Furthermore, the material on the top surface of the tray can be agitated by the stirring tube, air outlet, and air delivery pipe working together with the rotating tray. At the same time, drying air can be directly delivered into the material, which helps to improve drying efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of a rapid drying hot air circulating oven according to an embodiment of the present invention;
[0020] Figure 2 This is a schematic diagram of the structure of the tray, stirring tube, and air outlet in the embodiment of this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the tray, stirring tube, and support rod in the embodiment of this utility model.
[0022] In the diagram: 1. Hot air circulating air box body; 2. Base box; 3. Sealed box door; 4. Storage components; 5. Support rod; 6. Tray; 7. Adjusting nut one; 8. Side guard; 9. Mounting rod; 10. Sliding block; 11. Adjusting nut two; 12. Air supply pipe; 13. Diverting ring pipe; 14. Stirring rigid pipe; 15. Air outlet; 16. Air supply pipe; 17. Water collection tray. Detailed Implementation
[0023] 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.
[0024] Example 1
[0025] Combination Figures 1-3 A hot air circulating oven for rapid drying includes a hot air circulating box body 1, a bottom box 2 at the bottom of the hot air circulating box body 1, a sealed box door 3 movably installed at the front end of the hot air circulating box body 1, and a storage component 4 inside the hot air circulating box body 1.
[0026] See Figure 2Furthermore, the storage component 4 has two support rods 5. A rotating base is rotatably installed inside the hot air circulation box body 1 on both sides. The two support rods 5 are respectively installed on the top of the rotating base. Several trays 6 are slidably installed on the outer ring of the support rods 5. The outer ring of the support rods 5 is provided with external threads. Adjusting nuts 7 are threadedly connected to the upper and lower ends of each tray 6 on the outer ring of the support rods 5. A baffle 8 is fixedly connected to the top surface of the tray 6. A rotary motor is installed inside the bottom box 2 on both sides. The drive shaft of the rotary motor is connected to the bottom end of the rotating base. A sealing ring is provided at the connection between the rotating base and the hot air circulation box body 1. A water collection tray 17 is provided at the lower position of the outer ring of the support rods 5. Several water-permeable holes are provided through the upper and lower ends of the tray 6. Several air vents are provided through both sides of the baffle 8. The outer walls of the tray 6 and the baffle 8 are coated with a hydrophobic coating.
[0027] Specifically, before the material is dried, the material is placed on the top surface of the tray 6, and multiple trays 6 are slidably installed on the outer ring of the support rod 5. The trays 6 are locked and fixed by adjusting nuts 7. At this time, the fixing of the trays 6 can be released by turning the adjusting nuts 7 away from the trays 6. Then, the trays 6 can be pushed to slide on the support rod 5 to adjust the spacing between each tray 6. Thus, the distance between the trays 6 can be adjusted according to the size of the material, which is highly flexible. In addition, the set baffles 8 can block the material and reduce the probability of it falling off the trays 6. The bottom end of the support rod 5 is connected to the drive shaft of the rotary motor installed in the bottom box 2. By adjusting the speed of the rotary motor drive shaft, it can drive the support rod 5 to rotate slowly, thereby causing the material held by the trays 6 to move slowly during drying, improving the drying effect.
[0028] Example 2
[0029] See Figure 2 and Figure 3Furthermore, based on Embodiment 1, two mounting rods 9 are installed near the center of the top of the hot air circulating air box body 1. Several air supply pipes 12 are slidably mounted on the outer ring of the two mounting rods 9 via several sliding blocks 10, and the number of air supply pipes 12 matches the number of trays 6. A diversion ring pipe 13 is fixedly connected to the end of each air supply pipe 12 away from the mounting rods 9. Several stirring hard pipes 14 are fixedly mounted on the outer ring of the diversion ring pipe 13. Several air outlets 15 are connected to the bottom end of each stirring hard pipe 14 via an extension rod. The ring is threaded with an external thread. The outer ring of the mounting rod 9 is threaded with adjusting nuts 11 at the upper and lower ends of each sliding block 10. The diversion ring pipe 13 is circular and fits around the outer ring of the support rod 5. The bottom surface of the air outlet 15 is in contact with the top surface of the tray 6 and the air outlet 15 is slidably connected to the tray 6. The outer ring of the air outlet 15 has several vents. The air supply pipe 12, the diversion ring pipe 13, and the stirring hard pipe 14 are all hollow pipes. The top of the air supply pipe 12 is connected to the side of the mounting rod 9 with an air supply pipe 16.
[0030] Specifically, because multiple air supply pipes 12 are fixed by sliding block 10, adjusting nut 2 11, and mounting rod 9, they can be adjusted to a suitable position relative to the top surface of tray 6, allowing the stirring hard pipe 14 to be inserted into the material on the top surface of tray 6. When tray 6 rotates, the material can be stirred. At the same time, the air supply pipe 12, the diversion ring pipe 13, and the stirring hard pipe 14 are hollow pipes, and the end of the stirring hard pipe 14 is connected to an air outlet 15. Meanwhile, the air supply pipe 12 is connected to an air supply pipe 16. While stirring the material, drying air can be transmitted to the air outlet 15 and sprayed out. Because multiple air outlets 15 are inserted into the material and are located at different positions on tray 6, the material in the middle and the outer part can be dried at the same time to improve the drying uniformity and drying efficiency.
[0031] In actual operation, before the material is dried, the material is placed on the top surface of the tray 6, and multiple trays 6 are slidably installed on the outer ring of the support rod 5. The trays 6 are locked and fixed by adjusting nut 7. At this time, the fixing of the trays 6 can be released by turning the adjusting nut 7 away from the tray 6. Then the trays 6 can be pushed to slide on the support rod 5 to adjust the spacing of each tray 6. Thus, the distance between the trays 6 can be adjusted according to the size of the material, which is highly flexible in use.
[0032] Furthermore, the set edge 8 is used to block the material and reduce the probability of it falling off the tray 6. The bottom end of the support rod 5 is connected to the drive shaft of the rotary motor installed in the bottom box 2. By adjusting the speed of the rotary motor drive shaft, it can drive the support rod 5 to rotate slowly, thereby causing the material held by the tray 6 to move slowly during drying and improving the drying effect.
[0033] Because multiple air supply pipes 12 are fixed by sliding block 10, adjusting nut 2 11 and mounting rod 9, they can be adjusted to a suitable position from the top surface of tray 6 according to the above adjustment steps, so that the stirring hard pipe 14 can be inserted into the material on the top surface of tray 6. When tray 6 rotates, the material can be stirred. At the same time, the air supply pipe 12, the diversion ring pipe 13 and the stirring hard pipe 14 are hollow pipes.
[0034] Furthermore, the end of the stirring tube 14 is connected to an air outlet 15, and the air supply tube 12 is connected to an air supply pipe 16. While stirring the material, the drying air can be transmitted to the air outlet 15 and sprayed out. Since multiple air outlets 15 are inserted into the material and are located at different positions on the tray 6, the material in the middle and the outer part can be dried at the same time to improve the drying uniformity and the drying efficiency.
[0035] 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 the 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 drying hot air circulating oven, comprising a hot air circulating box body (1), wherein a bottom box (2) is provided at the bottom end of the hot air circulating box body (1), and a sealed box door (3) is movably installed at the front end of the hot air circulating box body (1), characterized in that: The hot air circulation box body (1) is equipped with a storage component (4) inside. The storage component (4) has two support rods (5). The hot air circulation box body (1) is rotatably installed on both sides inside. The two support rods (5) are respectively installed on the top of the rotat. Several trays (6) are slidably installed on the outer ring of the support rods (5). The outer ring of the support rods (5) is provided with external threads. The outer ring of the support rods (5) and the upper and lower ends of each tray (6) are threaded with adjusting nuts (7). The top surface of the tray (6) is fixedly connected with a flange (8). The bottom box (2) is installed on both sides inside. The drive shaft of the rotary motor is connected to the bottom end of the rotat.
2. A rapid through air drying hot air circulation oven as claimed in claim 1, wherein: A sealing ring is provided at the connection between the rotating seat and the hot air circulation box body (1), and a water collection tray (17) is provided at the lower position of the outer ring of the support rod (5).
3. A rapid through air drying hot air circulation oven as claimed in claim 1, wherein: Several water-permeable holes are provided through the upper and lower ends of the tray (6), and several air vents are provided through both sides of the baffle (8). The outer walls of the tray (6) and the baffle (8) are coated with a hydrophobic coating.
4. A rapid through air drying oven according to claim 1, wherein: Two mounting rods (9) are installed near the center of the top of the hot air circulating air box body (1). Several air supply pipes (12) are slidably installed on the outer ring of the two mounting rods (9) through several sliding blocks (10). The number of air supply pipes (12) matches the number of trays (6). A diversion ring pipe (13) is fixedly connected to the end of the air supply pipe (12) away from the mounting rod (9). Several stirring hard pipes (14) are fixedly installed on the outer ring of the diversion ring pipe (13). Several air outlets (15) are connected to the bottom end of the stirring hard pipe (14) through an extension rod.
5. A rapid through air drying hot air circulation oven as claimed in claim 4, wherein: The outer ring of the mounting rod (9) is provided with external threads, and the outer ring of the mounting rod (9) and the upper and lower ends of each sliding block (10) are threaded with adjusting nuts (11).
6. A rapid drying hot air circulating oven according to claim 4, characterized in that: The diversion ring pipe (13) is arranged in a circular shape. The diversion ring pipe (13) is sleeved on the outer ring of the support rod (5). The bottom surface of the air outlet (15) is in contact with the top surface of the tray (6), and the air outlet (15) and the tray (6) are slidably connected.
7. A rapid through air drying hot air circulation oven according to claim 6, wherein: The outer ring of the air outlet (15) is provided with several air vents. The air supply pipe (12), the diversion ring pipe (13), and the stirring hard pipe (14) are all hollow pipes. The top of the air supply pipe (12) is connected to the side of the mounting rod (9) with the air supply pipe (16).