Steam air fryer
By using a check valve and a blocking mechanism in the steam air fryer, automatic water supply and heat exchange prevention are achieved, solving the high cost and failure problems caused by the water pump motor, and improving the reliability and market competitiveness of the equipment.
Patent Information
- Application Number
- CN202422741218.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-11
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-11
AI Technical Summary
Existing steam air fryers use a water pump motor to deliver water, which increases equipment costs and may cause malfunctions such as water pump failure, water leakage or motor failure, affecting cooking results and user experience.
The check valve and barrier mechanism are used to realize automatic water supply by using the dead weight of water. The sealing structure prevents water backflow and heat exchange, thus reducing the probability of failure.
It effectively reduces production costs, improves equipment reliability and service life, and enhances product market competitiveness.
Smart Images

Figure CN223473531U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fryer technology, and in particular to a steam air fryer. Background Technology
[0002] A steam air fryer is a kitchen appliance that combines steam cooking and air frying functions. It heats food using steam and hot air circulation, maintaining its moisture and crispy exterior while reducing oil content. Currently, commercially available steam air fryers require a water pump motor to supply water, increasing the overall cost and making them relatively expensive. This also increases the likelihood of malfunctions, such as water pump failure, leaks, or motor failure, which can affect cooking results and user experience. Therefore, this invention proposes a steam air fryer. Utility Model Content
[0003] The purpose of this invention is to address the problem in the prior art that water is transported by a water pump motor, which increases the overall cost of the equipment and may lead to more malfunctions, such as water pump failure, water leakage, or motor failure, which may affect the cooking effect or user experience. This invention proposes a steam air fryer.
[0004] The technical solution of this utility model is as follows: A steam air fryer includes an air fryer body and a water tank installed on the top of the air fryer body. The water tank has a water outlet at the bottom. A positioning ring is provided on the air fryer body at a position corresponding to the water outlet. The top of the water tank has a water inlet and a sealing cap. A check valve is provided in the positioning ring to prevent water backflow. A water pipe is connected to the side of the check valve away from the water tank. The other end of the water pipe is connected to a heating box. A PCB heating element is provided at the bottom of the heating box. A steam pipe is connected to the top of the heating box. The other end of the steam pipe is connected to a heating module.
[0005] Optionally, the check valve includes a fixed ring fixedly connected in a positioning ring, a transition ring installed at the bottom of the fixed ring, a fixed seat provided at the bottom of the transition ring, the fixed seat fixedly connected in the fryer body, a connecting pipe provided at the bottom of the fixed seat, one end of the water pipe being sleeved on the connecting pipe, and a sealing ring provided between the transition ring and the fixed seat.
[0006] Optionally, a partition is provided in the transition ring, a fixed column is fixedly connected to the top of the partition, a sliding block is slidably connected to the fixed column, a limit rod is fixedly connected to the bottom of the sliding block, the limit rod passes through the partition and is slidably connected to the limit block, and the limit block is fixedly connected to the bottom of the partition.
[0007] Optionally, the partition plate has a through hole, and a first connecting rod is disposed in the through hole. The first connecting rod is fixedly connected to the bottom of the sliding block, and a first rubber disc is fixedly connected to the first connecting rod. The first rubber disc is disposed below the partition plate, and the diameter of the first rubber disc is larger than the inner diameter of the through hole.
[0008] Optionally, a first spring is provided between the partition and the sliding block, and the first spring is sleeved and installed on the outer ring of the fixed column.
[0009] Optionally, a leak-proof component is also included at the bottom of the water tank. The leak-proof component is used to prevent water from flowing out when the water tank is removed. The leak-proof component includes a synchronization cylinder fixedly connected to the bottom of the water tank. The synchronization cylinder is located outside the water outlet. A movable ring is slidably connected in the synchronization cylinder. Multiple sets of connecting plates are fixedly connected to the inner side of the movable ring. The multiple sets of connecting plates are jointly fixedly connected to a second connecting rod. A second rubber disc is fixedly connected to the top of the second connecting rod. The second rubber disc is located inside the water tank. The diameter of the second rubber disc is larger than the inner diameter of the water outlet. A second spring is provided between the movable ring and the water tank.
[0010] Optionally, it also includes a barrier mechanism installed in the connecting pipe. The barrier mechanism is used to prevent heat exchange between the water tank and the water in the water pipe. The barrier mechanism includes an installation cylinder installed in the connecting pipe. A limit seat is fixedly connected to the inner wall of the installation cylinder. A float ball is movably arranged in the installation cylinder. The outer diameter of the float ball is larger than the water inlet at the top of the installation cylinder.
[0011] Optionally, the highest water level in the water tank is lower than the height of the connection between the heating box and the steam pipe.
[0012] Optionally, the top of the fixing column contacts the bottom of the multiple sets of connecting plates, and the fixing column is located inside the synchronizing cylinder.
[0013] In summary, this application includes at least one of the following beneficial technical effects:
[0014] By incorporating a check valve, the water in the tank can sequentially enter the water pipe through the outlet and through-hole, achieving automatic water supply through the water's own weight, effectively reducing costs and the probability of malfunctions.
[0015] Furthermore, by setting up a barrier mechanism, when there is water in the water pipe, it prevents the heating box from being heated during operation and causing pressure to push back into the water tank, while also preventing heat exchange between the heating box and the water tank through the water pipe.
[0016] In summary, this invention can reduce production costs, making the product more competitive in the market, while also reducing the failure rate, improving the overall reliability of the equipment, and extending its service life. Attached Figure Description
[0017] Figure 1 A schematic diagram of a steam air fryer is provided.
[0018] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;
[0019] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.
[0020] Figure label:
[0021] 1. Fryer body; 11. Positioning ring;
[0022] 2. Water tank; 21. Water outlet;
[0023] 3. Check valve; 301. Fixed ring; 302. Transition ring; 303. Fixed seat; 304. Partition plate; 305. Fixed column; 306. Sliding block; 307. Limiting rod; 308. Limiting block; 309. Through hole; 310. First connecting rod; 311. First rubber disc; 312. First spring; 313. Connecting pipe; 314. Sealing ring;
[0024] 4. Water pipes; 5. Heating box; 51. PCB heating element; 6. Steam pipe; 7. Heating module;
[0025] 8. Leak-proof component; 81. Synchronizing cylinder; 82. Moving ring; 83. Connecting plate; 84. Second connecting rod; 85. Second rubber disc; 86. Second spring;
[0026] 9. Barrier mechanism; 91. Mounting cylinder; 92. Limit seat; 93. Float ball. Detailed Implementation
[0027] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0028] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.
[0029] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0030] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Example
[0033] like Figures 1 to 3 As shown, the present invention discloses a steam air fryer, including an air fryer body 1 and a water tank 2 installed on the top of the air fryer body 1. The water tank 2 has a water inlet and a sealing cap on its top. The water tank 2 has a water outlet 21 at its bottom, through which the water stored in the water tank 2 flows out. A positioning ring 11 is provided on the air fryer body 1 at a position corresponding to the water outlet 21. The positioning ring 11 facilitates the installation and fixation of the check valve 3.
[0034] Furthermore, the aforementioned steam air fryer includes a check valve 3 disposed within the positioning ring 11, which prevents water backflow. The check valve 3 includes a fixed ring 301 fixedly connected to the positioning ring 11, with the fixed ring 301 in a fixed position. A transition ring 302 is installed at the bottom of the fixed ring 301, and a fixed seat 303 is disposed at the bottom of the transition ring 302. The fixed seat 303 is fixedly connected to the fryer body 1. A sealing ring 314 is disposed between the transition ring 302 and the fixed seat 303, fixing the position of the fixed seat 303. The sealing ring 314, in conjunction with the fixed seat 303, ensures that the transition ring 302 is fixed in position and provides good sealing. A connecting pipe 313 is disposed at the bottom of the fixed seat 303, and one end of the water pipe 4 is fitted onto the connecting pipe 313 for easy water drainage. A partition 304 is disposed within the transition ring 302, and a fixed post 305 is fixedly connected to the top of the partition 304, with the fixed post 305 in a fixed position. A sliding block 306 is slidably connected to the fixed column 305, and the sliding block 306 moves up and down under the limiting action of the fixed column 305. A limiting rod 307 is fixedly connected to the bottom of the sliding block 306. The limiting rod 307 passes through the partition 304 and is slidably connected to a limiting block 308. The limiting block 308 is fixedly connected to the bottom of the partition 304. The setting of the limiting rod 307 and the limiting block 308 makes the movement of the sliding block 306 smooth and prevents the sliding block 306 from rotating. A through hole 309 is opened on the partition 304. After water enters the top of the partition 304, it is discharged downward through the through hole 309. A first connecting rod 310 is provided in the through hole 309. The first connecting rod 310 is fixedly connected to the bottom of the sliding block 306, and the first connecting rod 310 moves synchronously with the sliding block 306. A first rubber disc 311 is fixedly connected to the first connecting rod 310. The first rubber disc 311 is located below the partition 304, and its diameter is larger than the inner diameter of the through hole 309. When the first rubber disc 311 moves upward and covers the through hole 309, it prevents water from flowing downward. A first spring 312 is provided between the partition 304 and the sliding block 306. The first spring 312 is sleeved and installed on the outer ring of the fixed column 305. The first spring 312 is used to release the elastic force and drive the first rubber disc 311 to come close to the partition 304 to stop the water flow. The top of the fixed column 305 contacts the bottom of the multiple sets of connecting plates 83. The fixed column 305 is located inside the synchronous cylinder 81, so that after the water tank 2 is installed, the fixed column 305 can squeeze the second spring 86, and at the same time, the synchronous cylinder 81 can squeeze the first spring 312, so that the water in the water tank 2 can flow out.
[0035] Furthermore, the aforementioned steam air fryer also includes a water pipe 4 connected to the side of the check valve 3 away from the water tank 2, with the other end of the water pipe 4 connected to a heating chamber 5. A PCB heating element 51 is installed at the bottom of the heating chamber 5, which heats the water in the heating chamber 5 to generate steam. A steam pipe 6 is connected to the top of the heating chamber 5, with the other end of the steam pipe 6 connected to a heating module 7. Steam is discharged through the steam pipe 6 and delivered to the heating module 7 to heat the food. The highest water level in the water tank 2 is lower than the height of the connection between the heating chamber 5 and the steam pipe 6 to prevent water from directly entering the steam pipe 6.
[0036] Specifically, the aforementioned steam air fryer also includes a leak-proof component 8 located at the bottom of the water tank 2. This component prevents water from leaking out when the water tank 2 is removed. The leak-proof component 8 includes a synchronization cylinder 81 fixedly connected to the bottom of the water tank 2. The synchronization cylinder 81 is located outside the water outlet 21, through which water from the water tank 2 enters the synchronization cylinder 81. A movable ring 82 is slidably connected within the synchronization cylinder 81. Multiple sets of connecting plates 83 are fixedly connected to the inner side of the movable ring 82. Water passes through the gaps between the connecting plates 83 and through the movable ring 82. A second connecting rod 84 is fixedly connected to the multiple sets of connecting plates 83. The sliding of the movable ring 82 within the synchronization cylinder 81 allows the second connecting rod 84 to move smoothly. A second rubber disc 85 is fixedly connected to the top of the second connecting rod 84. The second rubber disc 85 is located inside the water tank 2, and its diameter is larger than the inner diameter of the water outlet 21. This allows the second rubber disc 85 to cover the water outlet 21 when it is near the water tank 2, preventing water from leaking out. A second spring 86 is provided between the moving ring 82 and the water tank 2. The second spring 86 is used to release the elastic force when the water tank 2 is removed, so that the second rubber disc 85 is tightly attached to the water tank 2 to prevent water from flowing out.
[0037] Finally, the aforementioned steam air fryer also includes a barrier mechanism 9 installed in the connecting pipe 313. The barrier mechanism 9 is used to prevent heat exchange between the water tank 2 and the water pipe 4. The barrier mechanism 9 includes an installation cylinder 91 installed in the connecting pipe 313. A limiting seat 92 is fixedly connected to the inner wall of the installation cylinder 91. The limiting seat 92 has a through hole to facilitate the passage of water and is used to limit the float 93. The float 93 is movably disposed in the installation cylinder 91. The density of the float 93 is less than that of water. The outer diameter of the float 93 is larger than the water inlet at the top of the installation cylinder 91, so that when the water tank 2 stops supplying water to the heating box 5 and there is water in the water pipe 4, the float 93, due to its lower density than water, blocks the water inlet at the top of the installation cylinder 91, preventing heat transfer.
[0038] In this embodiment, when water needs to be added to the water tank 2, the water tank 2 is removed from the fryer body 1. At this time, the moving ring 82 moves away from the fixed post 305. This causes the second spring 86 to release its elastic force. As the water tank 2 moves away from the fryer body 1, the moving ring 82 slides in the synchronous cylinder 81, simultaneously driving the second connecting rod 84 to move and causing the second rubber disc 85 to move closer to the water outlet 21. After the second rubber disc 85 covers the water outlet 21, it prevents water in the water tank 2 from flowing out through the water outlet 21. At the same time, as the synchronous cylinder 81 moves away from the sliding block 306, the first spring 312 releases its elastic force, causing the sliding block 306 to slide on the fixed post 305. The sliding block 306 moves smoothly under the limiting action of the limiting rod 307. Simultaneously, it causes the first connecting rod 310 and the first rubber disc 311 to move upward synchronously. At this time, the first rubber disc 311 covers the through hole 309, preventing water backflow. After removing the water tank 2, open the sealing cap and inject water into the water tank 2 through the water inlet until the water level is below the maximum water level line. Then, reinstall the water tank 2 onto the fryer body 1. During the installation of the water tank 2, the synchronizing cylinder 81 enters the fixing ring 301, and at the same time, the synchronizing cylinder 81 drives the sliding block 306 to move downward, causing the first spring 312 to be compressed, and the first rubber disc 311 to move downward away from the through hole 309. Simultaneously, the moving ring 82 stops moving downwards after contacting the fixed post 305, while the water tank 2 continues to move downwards, compressing the second spring 86. At the same time, the second rubber disc 85 moves away from the water tank 2, opening the outlet 21. Water from the water tank 2 enters the water pipe 4 through the outlet 21 and the through hole 309, and then enters the heating box 5 through the water pipe 4. The water level in the heating box 5 is equal to that in the water tank 2. When the water tank 2 stops supplying water to the heating box 5, the float 93, due to its lower density than water, blocks the inlet of the mounting cylinder 91, preventing heat transfer. The water in the heating box 5 is heated by the PCB heating element 51, and the generated steam is transported to the heating module 7 through the steam pipe 6 to heat the food.
[0039] The above specific embodiments are merely optional embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.
Claims
1. A steam air fryer, comprising an air fryer body (1), characterized in that, Also includes: A water tank (2) is installed on the top of the fryer body (1). A water outlet (21) is provided at the bottom of the water tank (2). A positioning ring (11) is provided at the position corresponding to the water outlet (21) on the fryer body (1). A water inlet is provided on the top of the water tank (2) and a sealing cap is provided. A check valve (3) is provided in the positioning ring (11), the check valve (3) is used to prevent water backflow; A water pipe (4) is connected to the side of the check valve (3) away from the water tank (2). The other end of the water pipe (4) is connected to a heating box (5). A PCB heating element (51) is provided at the bottom of the heating box (5). A steam pipe (6) is connected to the top of the heating box (5). The other end of the steam pipe (6) is connected to a heating module (7).
2. The steam air fryer according to claim 1, characterized in that, The check valve (3) includes a fixed ring (301) fixedly connected in the positioning ring (11), a transition ring (302) installed at the bottom of the fixed ring (301), a fixed seat (303) provided at the bottom of the transition ring (302), the fixed seat (303) fixedly connected in the fryer body (1), a connecting pipe (313) provided at the bottom of the fixed seat (303), one end of the water pipe (4) is sleeved on the connecting pipe (313), and a sealing ring (314) is provided between the transition ring (302) and the fixed seat (303).
3. A steam air fryer according to claim 2, characterized in that, A partition (304) is provided in the transition ring (302). A fixed column (305) is fixedly connected to the top of the partition (304). A sliding block (306) is slidably connected to the fixed column (305). A limiting rod (307) is fixedly connected to the bottom of the sliding block (306). The limiting rod (307) passes through the partition (304) and is slidably connected to a limiting block (308). The limiting block (308) is fixedly connected to the bottom of the partition (304).
4. A steam air fryer according to claim 3, characterized in that, The partition (304) has a through hole (309), and a first connecting rod (310) is provided in the through hole (309). The first connecting rod (310) is fixedly connected to the bottom of the sliding block (306). A first rubber disc (311) is fixedly connected to the first connecting rod (310). The first rubber disc (311) is located below the partition (304), and the diameter of the first rubber disc (311) is larger than the inner diameter of the through hole (309).
5. A steam air fryer according to claim 4, characterized in that, A first spring (312) is provided between the partition (304) and the sliding block (306), and the first spring (312) is sleeved and installed on the outer ring of the fixed column (305).
6. A steam air fryer according to claim 5, characterized in that, It also includes a leak-proof component (8) set at the bottom of the water tank (2). The leak-proof component (8) is used to prevent water from flowing out when the water tank (2) is removed. The leak-proof component (8) includes a synchronization cylinder (81) fixedly connected to the bottom of the water tank (2). The synchronization cylinder (81) is located outside the outlet (21). A moving ring (82) is slidably connected in the synchronization cylinder (81). Multiple sets of connecting plates (83) are fixedly connected to the inner side of the moving ring (82). Multiple sets of connecting plates (83) are fixedly connected to a second connecting rod (84). A second rubber disc (85) is fixedly connected to the top of the second connecting rod (84). The second rubber disc (85) is set inside the water tank (2). The diameter of the second rubber disc (85) is larger than the inner diameter of the outlet (21). A second spring (86) is set between the moving ring (82) and the water tank (2).
7. A steam air fryer according to claim 6, characterized in that, It also includes a barrier mechanism (9) installed in the connecting pipe (313), the barrier mechanism (9) is used to prevent heat exchange between the water tank (2) and the water pipe (4), the barrier mechanism (9) includes an installation cylinder (91) installed in the connecting pipe (313), the inner wall of the installation cylinder (91) is fixedly connected to a limit seat (92), and a float ball (93) is movably arranged in the installation cylinder (91), the outer diameter of the float ball (93) is larger than the water inlet at the top of the installation cylinder (91).
8. A steam air fryer according to claim 7, characterized in that, The highest water level of the water tank (2) is lower than the height of the connection between the heating box (5) and the steam pipe (6).
9. A steam air fryer according to claim 6, characterized in that, The top of the fixing column (305) contacts the bottom of the multiple sets of connecting plates (83), and the fixing column (305) is located inside the synchronizing cylinder (81).