Kitchen hot air circulation type sterilizing cabinet

Abstract

This invention relates to the field of tableware disinfection technology and discloses a hot air circulation disinfection cabinet for kitchens, including a disinfection cabinet body. A fixed shell is fixedly installed on the top of the inner wall of the disinfection cabinet body. A fan, a gas filter assembly, and a heating grid are arranged sequentially inside the fixed shell. An installation groove is opened between the inner and outer walls of the disinfection cabinet body. Connecting pipes are fixedly installed at both ends of the fixed shell. A first L-shaped tube is fixedly installed at the bottom of each connecting pipe. Two sets of second L-shaped tubes are installed at the rear end of the fixed shell. Spiral tubes are sleeved on the outer surface of the first and second L-shaped tubes. The tops of the six sets of spiral tubes are connected to a U-shaped tube. An output tube is provided at the bottom of the U-shaped tube and extends into the collection assembly. This application achieves a comprehensive and efficient disinfection effect by integrating hot air circulation and ultraviolet irradiation. In addition, the spiral tubes that tightly wrap the first and second L-shaped tubes that deliver fresh air form a highly efficient built-in heat exchanger.

Description

Technical Field

[0001] This invention relates to the field of tableware disinfection technology, specifically a hot air circulating disinfection cabinet for kitchens. Background Technology

[0002] In patent application CN211382855U, a cabinet is included, comprising side walls, a top plate, a bottom plate, and a cabinet door. A hot air duct is fixed below the top plate, and a heating pipe is installed in the hot air duct. Air outlets are provided on both sides of the hot air duct, and an air collection port is provided at the bottom of the top plate. A recovery air duct is also provided inside the top plate, and the recovery air duct is connected to the inlet of the hot air duct. A mobile vehicle is included, comprising a vehicle body and columns for supporting the vehicle body. The columns are fixed on a base frame, and casters are provided at the bottom of the base frame. There is a gap between the vehicle body and the base frame. The gap matches the size and height of the bottom plate, so that the air supplemented in the hot air duct has a certain amount of residual heat, reducing the energy consumption of the heat pipe and improving the heating efficiency of the heat pipe.

[0003] In the aforementioned patents, some existing kitchen disinfection cabinets commonly suffer from uneven ultraviolet disinfection coverage. Because the fixed lamps cannot reach the sides and bottoms of tableware, there is a risk of bacterial residue. Simultaneously, the cabinet lacks effective moisture control and hot air circulation drying structures, leading to condensation buildup and the growth of bacteria and odors. Furthermore, traditional designs lack heat recovery structures, resulting in direct heat loss from exhaust, low energy efficiency, and negatively impacting overall disinfection effectiveness and the equipment's economic viability. Summary of the Invention

[0004] The purpose of this invention is to provide a hot air circulating disinfection cabinet for kitchens to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: a kitchen hot air circulating disinfection cabinet, including a disinfection cabinet body, a movable door rotatably provided at one end of the disinfection cabinet body near the opening, two sets of storage components provided inside the disinfection cabinet body, and a collection component that cooperates with the storage components. A fixed shell is fixedly installed at the top of the inner wall of the disinfection cabinet body, and a fan, a gas filter component, and a heating grid are arranged sequentially inside the fixed shell. An installation groove is opened between the inner and outer walls of the disinfection cabinet body. The installation groove is U-shaped. Connecting pipes communicating with the interior are fixedly provided at both ends of the fixed shell. Two sets of first L-shaped pipes communicating with the bottom of each connecting pipe are fixedly provided. Two sets of second L-shaped pipes communicating with the interior are provided at the rear end of the fixed shell. The first L-shaped pipes and the second L-shaped pipes are both located in the installation groove. A spiral tube is sleeved on the outer surface of the first L-shaped pipes and the second L-shaped pipes. The top ends of the six sets of spiral tubes are connected to a U-shaped tube. An output tube communicating with the bottom of the U-shaped tube is provided near the center, and the output end of the output tube extends into the collection component.

[0006] Preferably, the front and bottom ends of the fixed shell are provided with multiple sets of air outlets that communicate with them, and the air outlets are opened at an angle and face the storage component.

[0007] Preferably, the output end of the output tube is connected to a flared tube.

[0008] Preferably, the inner wall of the disinfection cabinet has two sets of grooves at both ends, each set of grooves is fixedly installed with an ultraviolet lamp tube, and each set of ultraviolet lamp tubes is provided with a refraction component below it.

[0009] Preferably, each set of the refractive components includes two sets of fixing blocks fixedly installed below the ultraviolet lamp tube, and the two sets of fixing blocks are arranged in a centrally symmetrical manner, with a refractive block rotatably provided between the two sets of fixing blocks.

[0010] Preferably, the storage components include two sets, each set including a fixed frame and a sliding frame, wherein the fixed frame is fixedly connected to the sliding frame and is slidably disposed inside the disinfection cabinet via the sliding frame.

[0011] Preferably, a first fixing plate is fixedly installed at both ends of the inner wall of the disinfection cabinet, and a second fixing plate is fixedly installed above and below the first fixing plate, with a gap between the first fixing plate and the upper and lower sets of second fixing plates for the sliding frame to slide.

[0012] Preferably, the collection component includes a collection trough located at the bottom of the inner wall of the disinfection cabinet, with a mesh plate movably installed at the opening of the collection trough, and the flared tube located inside the collection trough.

[0013] Preferably, the disinfection cabinet body has a drain outlet that communicates with the collection tank fixedly installed on the lower part of the side of the opening.

[0014] Preferably, the drain outlet is threaded with a matching screw cap.

[0015] Compared with the prior art, the technical solution of the present invention has the following advantages: (1) This disinfection cabinet achieves comprehensive and efficient disinfection by integrating hot air circulation and ultraviolet irradiation. The hot air is generated by a fan inside the fixed shell. After filtration, purification and heating, it directly acts on the surface of the tableware through the oblique air outlet for rapid drying and high-temperature disinfection. At the same time, the hot air enters the spiral tube installed outside the air inlet pipe to preheat the gas about to enter the fixed shell, which improves the efficiency of heat energy utilization and reduces energy loss. The ultraviolet lamp is installed in the groove of the inner wall of the cabinet. With the help of the rotatable refraction block below, it automatically adjusts the angle under the drive of the wind to refract or reflect the ultraviolet light to the sides, bottom and corners of the tableware, which are difficult to be covered by traditional direct irradiation. This dynamic refraction mechanism significantly expands the effective disinfection range of ultraviolet light, ensuring that all positions in the cabinet space can be fully irradiated, thereby improving the uniformity and thoroughness of disinfection, avoiding the problem of insufficient local disinfection, and enhancing the overall disinfection reliability. (2) The disinfection cabinet is designed with an efficient downward hot air flow path and a drying structure for the collection tank, which effectively maintains the cleanliness and dryness of the cabinet environment. After the hot air completes the disinfection of the tableware, it enters the U-shaped tube through the spiral tube and is guided to the bottom collection tank through the output tube and the conical flared tube. The diffused airflow of the flared tube covers a larger area in the collection tank, accelerating the evaporation of liquid or condensate in the tank, preventing bacteria from growing or odors from being generated in a humid environment, ensuring that the collection tank itself is dry and clean, and avoiding it from becoming a secondary source of pollution. At the same time, the hot air forms a clear downward airflow, which drives the humid air in the cabinet to move downward and is discharged through the drain outlet, enhancing the overall air replacement and drying effect in the cabinet. This design not only keeps the drainage channel dry and unobstructed, preventing water stains from accumulating and clogging, but the continuous airflow can also block the backflow of external air or the entry of insects to a certain extent, improving the long-term hygiene and maintenance convenience of the disinfection cabinet; (3) The design of this disinfection cabinet allows the hot air that has completed the disinfection task to enter the spiral tube, which tightly wraps around the first L-shaped tube and the second L-shaped tube that deliver fresh air, forming a highly efficient built-in heat exchanger. This structure achieves significant heat recovery. The hot air in the pipe continuously preheats the fresh air that is about to enter the heating stage, effectively increasing the base temperature of the fresh air. This not only significantly reduces the energy consumption required for the subsequent heating network to heat the air to the working temperature, shortens the heating response time, and improves the overall thermal efficiency, but also helps to extend the service life of the heating network by reducing the continuous high-load working time. At the same time, the preheating process can make the airflow temperature entering the fixed shell more stable, reducing the temperature fluctuations and thermal stress caused by the rapid convergence of hot and cold air inside. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the storage component structure of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the fixed frame of the present invention; Figure 4 This is a top view cross-sectional structural diagram of the present invention; Figure 5 This is a side view cross-sectional structural diagram of the present invention; Figure 6 This is a frontal cross-sectional view of the present invention. Figure 7 This is a schematic diagram of the refractive component structure of the present invention; Figure 8 This is a schematic diagram of the duct assembly structure of the present invention; Figure 9 This is a schematic diagram of the intake assembly structure of the present invention; Figure 10 This is a schematic diagram of the exhaust assembly structure of the present invention.

[0017] In the diagram: 10. Disinfection cabinet body; 11. Movable door; 12. First fixed plate; 13. Second fixed plate; 14. Sliding frame; 15. Fixed frame; 16. Collection tank; 17. Mesh plate; 18. Drain outlet; 19. Screw cap; 20. Fixed shell; 21. Air outlet; 22. Mounting groove; 23. Connecting pipe; 24. First L-shaped pipe; 25. Second L-shaped pipe; 26. Spiral pipe; 27. U-shaped pipe; 28. Output pipe; 29. ​​Flared pipe; 30. Groove; 31. Ultraviolet lamp tube; 32. Fixed block; 33. Reflecting block. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0019] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar terms used in this disclosure, mean that an element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0020] like Figures 1 to 10 As shown, the present invention provides a kitchen hot air circulating disinfection cabinet, including a disinfection cabinet body 10. The disinfection cabinet body 10 has a rotatable door 11 near the opening. The disinfection cabinet body 10 contains two sets of storage components for placing tableware. The disinfection cabinet body 10 also contains a collection component that cooperates with the storage components, and the collection component is located below the storage components. A fixing shell 20 is fixedly installed on the top of the inner wall of the disinfection cabinet body 10. A fan, a gas filter component, and a heating grid are sequentially arranged inside the fixing shell 20. An installation groove 22 is formed between the inner and outer walls of the disinfection cabinet body 10. The installation groove 22 is U-shaped, and the opening of the U-shape corresponds to the opening of the disinfection cabinet body 10. Both ends of the fixed shell 20 are fixedly provided with connecting pipes 23 communicating with their interiors. Each connecting pipe 23 has two sets of first L-shaped pipes 24 fixedly provided at its bottom end, communicating with it. The rear end of the fixed shell 20 is provided with two sets of second L-shaped pipes 25 communicating with its interior. The first L-shaped pipes 24 and the second L-shaped pipes 25 are both located in the mounting groove 22. The outer surfaces of the first L-shaped pipes 24 and the second L-shaped pipes 25 are all fitted with spiral pipes 26. The top ends of the six sets of spiral pipes 26 are connected to U-shaped pipes 27. The bottom end of the U-shaped pipe 27 is provided with an output pipe 28 communicating with it near the center, and the output end of the output pipe 28 extends into the collection assembly. The output pipe 28 is provided with a one-way air outlet valve.

[0021] The fixed shell 20 has multiple sets of air outlets 21 at its front end and bottom end, which are connected to it. The air outlets 21 are opened at an angle and face the storage component.

[0022] The output end of the output tube 28 is connected to the flared tube 29, and the flared tube 29 is tapered.

[0023] The inner wall of the disinfection cabinet 10 has two sets of grooves 30 at both ends. Each set of grooves 30 has an ultraviolet lamp tube 31 fixedly installed in it, and each set of ultraviolet lamp tube 31 has a refraction component below it.

[0024] Each set of the refractive components includes two sets of fixing blocks 32 fixedly installed below the ultraviolet lamp tube 31, and the two sets of fixing blocks 32 are centrally symmetrically arranged, with a refractive block 33 rotatably provided between the two sets of fixing blocks 32.

[0025] The storage components include two sets, each set including a fixed frame 15 and a sliding frame 14. The fixed frame 15 is fixedly connected to the sliding frame 14 and is slidably disposed inside the disinfection cabinet body 10 through the sliding frame 14.

[0026] The disinfection cabinet body 10 has a first fixing plate 12 fixedly installed at both ends of the inner wall. A second fixing plate 13 is fixedly installed above and below the first fixing plate 12. A gap is left between the first fixing plate 12 and the upper and lower sets of second fixing plates 13 for the sliding frame 14 to slide.

[0027] The collection component includes a collection trough 16 located at the bottom of the inner wall of the disinfection cabinet body 10, a mesh plate 17 is movably installed at the opening of the collection trough 16, and the flared tube 29 is located inside the collection trough 16.

[0028] The cabinet body 10 of the disinfection cabinet has a drain outlet 18 that is connected to the collection tank 16. The drain outlet 18 is fixedly installed on the side of the opening near the lower end of the cabinet body 10.

[0029] The drain outlet 18 is threaded with a matching screw cap 19.

[0030] The working principle of this invention is as follows: When the disinfection cabinet is in operation, the fan fixed inside the top of the cabinet's inner wall, the fixed shell 20, is activated. Gas enters the fixed shell 20 through the first L-shaped tube 24 and the second L-shaped tube 25, is purified by the filter assembly inside the shell, and is then heated by the heating grid to form high-temperature clean air. The hot air is blown directly from the fixed shell 20 through the obliquely opened air outlets 21 at its front and bottom ends onto the tableware on the storage assembly inside the cabinet for preliminary drying and disinfection. At the same time, the hot air enters the spiral tube 26. Since the spiral tube 26 is fitted onto the outer surface of the first L-shaped tube 24 and the second L-shaped tube 25, when the hot air enters the spiral tube 26, the hot air inside can preheat the gas entering the first L-shaped tube 24 and the second L-shaped tube 25, which can improve efficiency.

[0031] When the tableware is first placed on the storage component, it will be covered with water droplets, which will flow into the collection tank 16 along the fixing frame 15 and the mesh plate 17. The collection tank 16 is used to receive condensed moisture or residue carried in the circulating air. If the tank is damp for a long time, bacteria will easily grow and odors will be produced. After the hot air has dried and disinfected the tableware on the upper part, it enters the U-shaped tube 27 through the lower input end of the spiral tube 26, and is guided to the bottom collection tank 16 through the output tube 28 and the flared tube 29 connected to the U-shaped tube 27. The hot air blown directly in can accelerate the evaporation of the liquid in the tank, keep it dry and clean, and prevent the collection tank 16 itself from becoming a source of contamination. In addition, this design ensures that the hot air forms a clear downward flow path in the cabinet, which helps to drive the humid air in the cabinet downward and discharge it through the drain outlet 18, thereby enhancing the overall air replacement and drying effect in the cabinet. The hot air blown towards the drain outlet 18 can keep the drainage channel dry and unobstructed, and prevent residual water stains from accumulating or clogging the pipes. Meanwhile, the continuous airflow also helps to prevent backflow of external air or the entry of insects. The flared pipe 29 is conical, with an outlet area larger than the pipe cross-section. This allows the blown hot air to diffuse, covering a larger inner wall area of ​​the collection tank 16 and achieving a more uniform drying effect.

[0032] The ultraviolet lamps 31 installed in the recesses 30 on the inner wall of the cabinet work synchronously to irradiate and disinfect the tableware. The refraction assembly below, including a fixed block 32 and a rotatable refraction block 33, is used to adjust or diffuse the ultraviolet irradiation range to improve the disinfection effect. Multiple air vents 21 on the fixed shell 20 cause the refraction block 33 to rotate under the action of airflow. This reflects or refracts some of the ultraviolet light to areas that would otherwise not be directly exposed, such as the sides of the tableware, the bottom recesses 30, or the corners of the cabinet, allowing the ultraviolet light to be more evenly distributed within the disinfection space, expanding the effective disinfection coverage area, and thus improving the overall uniformity and reliability of the disinfection process.

[0033] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A kitchen hot air circulating disinfection cabinet, comprising a cabinet body (10), characterized in that: The disinfection cabinet body (10) has a movable door (11) near the opening. The disinfection cabinet body (10) contains two sets of storage components and a collection component that works in conjunction with the storage components. A fixed shell (20) is fixedly installed at the top of the inner wall of the disinfection cabinet body (10). Inside the fixed shell (20) are a fan, a gas filter component, and a heating grid arranged sequentially. An installation groove (22) is formed between the inner and outer walls of the disinfection cabinet body (10). The installation groove (22) is U-shaped. Connecting pipes (23) communicating with the interior of the fixed shell (20) are fixedly installed at both ends of the fixed shell (20). Each... The bottom end of the connecting tube (23) is fixedly provided with two sets of first L-shaped tubes (24) communicating with it. The rear end of the fixed shell (20) is provided with two sets of second L-shaped tubes (25) communicating with its interior. The first L-shaped tubes (24) and the second L-shaped tubes (25) are both located in the mounting groove (22). The outer surfaces of the first L-shaped tubes (24) and the second L-shaped tubes (25) are all fitted with spiral tubes (26). The top ends of the six sets of spiral tubes (26) are connected to U-shaped tubes (27). The bottom end of the U-shaped tube (27) is provided with an output tube (28) communicating with it near the center, and the output end of the output tube (28) extends into the collection assembly.

2. A kitchen hot air circulating disinfection cabinet according to claim 1, characterized in that: The fixed shell (20) has multiple sets of air outlets (21) at its front end and bottom end, which are connected to it. The air outlets (21) are opened at an angle and face the storage component.

3. A kitchen hot air circulating disinfection cabinet according to claim 1, characterized in that: The output end of the output tube (28) is connected to the flared tube (29).

4. A kitchen hot air circulating disinfection cabinet according to claim 1, characterized in that: The inner wall of the disinfection cabinet (10) has two sets of grooves (30) at both ends. Each set of grooves (30) is fixedly installed with an ultraviolet lamp (31). Each set of ultraviolet lamps (31) has a refraction component below it.

5. A kitchen hot air circulating disinfection cabinet according to claim 4, characterized in that: Each set of the refractive components includes two sets of fixing blocks (32) fixedly installed below the ultraviolet lamp tube (31), and the two sets of fixing blocks (32) are centrally symmetrically arranged, with a refractive block (33) rotatably provided between the two sets of fixing blocks (32).

6. A kitchen hot air circulating disinfection cabinet according to claim 1, characterized in that: The storage components include two sets, each set of which includes a fixed frame (15) and a sliding frame (14). The fixed frame (15) is fixedly connected to the sliding frame (14) and is slidably set inside the disinfection cabinet body (10) through the sliding frame (14).

7. A kitchen hot air circulating disinfection cabinet according to claim 6, characterized in that: The disinfection cabinet body (10) has a first fixing plate (12) fixedly installed at both ends of the inner wall. A second fixing plate (13) is fixedly installed above and below the first fixing plate (12). A gap is left between the first fixing plate (12) and the two sets of second fixing plates (13) for the sliding frame (14) to slide.

8. A kitchen hot air circulating disinfection cabinet according to claim 3, characterized in that: The collection component includes a collection trough (16) located at the bottom of the inner wall of the disinfection cabinet (10), a mesh plate (17) is movably installed at the opening of the collection trough (16), and the flared tube (29) is located inside the collection trough (16).

9. A kitchen hot air circulating disinfection cabinet according to claim 8, characterized in that: The cabinet body (10) of the disinfection cabinet is fixedly provided with a drain outlet (18) connected to the collection tank (16) on the lower part of the side of the opening.

10. A kitchen hot air circulating disinfection cabinet according to claim 9, characterized in that: The drain outlet (18) is threaded with a screw cap (19) that matches it.

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