Appliance using steam for heating and health preserving kettle

Abstract

The utility model relates to an appliance for heating by using steam and a health preserving kettle. The appliance for heating by using the steam is characterized by comprising a seat body, a kettle body and a steam generator, the steam generator is arranged in the seat body, and the kettle body is used for being placed on the seat body; the base body is provided with a first connector used for being communicated with a steam generator, a second connector is arranged on the lower portion of a handle of the kettle body and communicated to an inner cavity of the kettle body, and the first connector and the second connector are detachably connected; a one-way structure is arranged in the first connector and / or the second connector. Different from the prior art that a steam channel is arranged at the top of a kettle body to affect taking and placing or a bottom air guide structure hinders food taking and placing, a connecting structure of the steam channel is arranged on the lower portion of a handle of the kettle body. In daily use, a user cannot be interfered by the steam channel structure when taking and placing the kettle body, operation can be carried out more smoothly, and the use convenience degree is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment technology, and in particular to a device and health pot that uses steam for heating. Background Technology

[0002] Currently, with technological advancements, steam-heated health-preserving kettles have emerged. Existing health-preserving kettles typically include a steam generator and a steam channel that connects to and is connected to the steam generator for introducing steam into the kettle body. For example, in the health-preserving kettle disclosed in CN217161744U, the steam channel is specifically located at the top of the kettle body, which affects the placement and removal of the kettle, making it quite inconvenient. Another example is the steam-heated liquid heater disclosed in CN213248424U, which has a protruding air-guiding structure at the bottom of the kettle body, with the steam channel located within the air-guiding structure. However, to prevent backflow, the air-guiding structure needs to direct steam into the container... The protrusions inside the cavity can obstruct the movement of food or ingredients within the pot. For example, CN208301475U discloses a health-preserving pot that requires an inverted U-shaped pipe as the steam passage, located on the side wall near the handle. This results in an excessively thick side wall structure, undoubtedly increasing production costs. Furthermore, CN217161742U discloses a steam heating device and pot assembly with a steam passage within the handle. This allows heat from the steam passage to easily transfer to the handle, causing it to become hot and further hindering the handling of the pot. It is clear that existing health-preserving pots have numerous problems with their air intake structures; therefore, there is an urgent need for a device with a newly designed air intake structure. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art, according to one aspect of the present invention, an appliance for heating by steam is provided, comprising: a base, a kettle body and a steam generator, wherein the steam generator is disposed in the base body and the kettle body is placed on the base body.

[0004] The base is provided with a first connector for connecting to a steam generator, and the lower part of the handle of the kettle is provided with a second connector that leads to the inner cavity of the kettle. The first connector and the second connector are detachably connected.

[0005] A one-way structure is provided in the first connector and / or the second connector; or, a one-way structure is provided between the first connector and the second connector, wherein the allowed flow direction of the one-way structure is the same as the steam flow direction;

[0006] When the kettle body is placed on the base, the first connector and the second connector are plugged in and connected.

[0007] In one embodiment of this application, a first through hole is provided through the top wall of the base facing the kettle body, and one interface of the first connector is located at the first through hole and the other interface is connected to the steam generator;

[0008] The second connector is located in the cavity area at the bottom of the handle and a second through hole is provided through the bottom wall of the cavity area. One end of the second connector extends out of the second through hole and the other end is connected to the inner cavity of the pot body.

[0009] When the kettle body is placed on the base, one of the connectors of the second connector is inserted into one of the interfaces of the first connector.

[0010] In one embodiment of this application, the inner cavity sidewall of the kettle body is connected to a connecting pipe, and the connecting pipe extends outward to communicate with a second connector;

[0011] A check valve is sealed at the port of the connecting pipe located on the inner wall of the cavity.

[0012] In one embodiment of this application, the check valve has a through-hole, and a plurality of check plates are provided at the end of the through-hole, the plurality of check plates being arc-shaped with outward arching.

[0013] In one embodiment of this application, a one-way valve is provided in the check hole, and the one-way valve allows the steam to flow in the same direction.

[0014] In one embodiment of this application, the top of the base is provided with a first area for placing the pot body, and the first area is provided with an assembly notch that penetrates the top wall of the base.

[0015] The steam generator includes a housing and a cover. The housing is located at the assembly notch of the base and contains a heating element. The housing also has a steam generating slot with an opening at the top. The cover fits into the slot of the assembly notch and is detachably connected to the housing or base. The cover is used to seal the top opening of the steam generating slot.

[0016] In one embodiment of this application, the steam generator includes a housing and a heating tube disposed within the housing. A spirally arranged steam generating tank is disposed within the housing, and the steam generating tank has an inner connector and an outer interface.

[0017] The housing is equipped with a water inlet and a steam outlet. The water inlet is connected to the inner connector of the steam generating tank, and the steam outlet is connected to the outer interface of the steam generating tank. The heating tube includes an arc-shaped heating section located at the outer ring of the spiral steam generating tank.

[0018] In one embodiment of this application, the diameter of the arc-shaped heating section is greater than the width of the opening of the spiral steam generating tank.

[0019] In one embodiment of this application, a unidirectional structure is disposed within the second connector;

[0020] The unidirectional structure is spherically shaped.

[0021] In one embodiment of this application, the second connector has a venting cavity, one side of which is connected to a steam generator through a first channel and the other side is connected to the first connector through a second channel.

[0022] A connecting pipe is movably disposed within the second connector. The side wall of the connecting pipe has a through-type ventilation notch. One end of the connecting pipe is located within the second channel, and the other end of the connecting pipe is located within the ventilation cavity and has a sealing element. An elastic element is disposed between the other end of the connecting pipe and the inner wall of the ventilation cavity.

[0023] When the first connector is inserted into the second channel of the second connector, the first connector abuts against the connecting tube and drives the connecting tube to move downward, so that the venting notch of the connecting tube is exposed and communicates with the venting chamber.

[0024] When the first connector leaves the second channel, the elastic element resets and drives the connecting tube to move upward, so that the seal is sealed at the port of the second channel.

[0025] According to another aspect of this application, a health-preserving kettle is provided, including the above-mentioned appliance that uses steam for heating.

[0026] In summary, the steam-heating appliance and health pot provided by this utility model have the following technical effects:

[0027] Unlike existing technologies where the steam channel is located at the top of the pot, affecting loading and unloading, or where the bottom steam guide structure obstructs food handling, this appliance places the steam channel connection structure at the bottom of the pot handle. In daily use, users are not hindered by the steam channel structure when loading and unloading the pot, allowing for smoother operation and greatly improving ease of use.

[0028] Furthermore, compared to existing technologies where the steam channel design leads to excessively thick sidewalls of the kettle body, thus increasing production costs, this appliance avoids complex designs for other parts of the kettle body by setting a connector at the bottom of the handle. This results in a simpler and more rational overall structure of the kettle body, effectively reducing production costs.

[0029] Meanwhile, the problem of the handle getting too hot due to the steam channel in the handle in the existing technology can also be solved in this appliance. The connector of the steam channel is located at the bottom of the handle, so the heat in the steam channel will not be directly transferred to the handle. Users will not be burned by the handle when picking up or putting down the kettle, which greatly improves the safety of use.

[0030] Finally, the one-way structure provided in the first connector and / or the second connector, or the one-way structure provided between the first connector and the second connector, can effectively prevent the liquid and steam in the kettle from flowing back into the steam generator. This not only ensures the normal operation of the steam generator and extends its service life, but also avoids safety hazards and equipment failures that may be caused by liquid backflow. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the device according to an embodiment of the present utility model;

[0032] Figure 2 This is a cross-sectional view of the internal structure of the device according to an embodiment of the present utility model;

[0033] Figure 3 for Figure 2 A magnified view of point A in the image;

[0034] Figure 4 This is a schematic diagram showing the disassembled state of the apparatus according to an embodiment of the present utility model;

[0035] Figure 5 This is a schematic diagram of the disassembled state of the steam generator of the appliance according to an embodiment of the present utility model;

[0036] Figure 6 This is a cross-sectional view of the internal structure of the steam generator of the appliance according to an embodiment of the present invention;

[0037] Figure 7 This is another structural schematic diagram of the steam generator of the appliance according to an embodiment of the present utility model;

[0038] Figure 8 This is a schematic diagram of the structure of the check valve of the device according to an embodiment of the present utility model;

[0039] Figure 9 This is a cross-sectional view of the internal structure of the second connector of the device according to an embodiment of the present invention;

[0040] Attached Figures: 1-Base, 11-First Through Hole, 12-First Region, 121-Assembly Notch, 2-Pot Body, 21-Handle, 211-Cavity Region, 212-Second Through Hole, 22-Inner Cavity, 221-Connecting Pipe, 3-Steam Generator, 31-Shell, 311-Steam Generating Tank, 312-Inner Connector, 313-Outer Interface, 314-Water Inlet, 315-Steam Outlet, 32-Cover, 33-Heating Element, 331-Arc-shaped Heating Section, 4-First Connector, 5-Second Connector, 51-Ventilation Chamber, 52-First Channel, 53-Second Channel, 54-Connecting Pipe, 541-Ventilation Notch, 55-Seal, 56-Elastic Element, 6-One-way Structure, 7-Check Element, 71-Check Hole, 72-Check Plate. Detailed Implementation

[0041] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0042] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0044] This utility model discloses an appliance that uses steam for heating and a health-preserving kettle incorporating the appliance. Of course, besides the health-preserving kettle, other kitchen appliances that use steam for heating can also be used.

[0045] This embodiment uses a health-preserving kettle as an example. This appliance utilizes steam for heating, offering advantages including, but not limited to, the following: The steam heating method allows for direct heat transfer to the liquid and ingredients within the kettle, resulting in more even heating and higher efficiency. Furthermore, the steam heating process also turbulences the food and water within the kettle, promoting their movement and improving heating uniformity and efficiency, thus shortening heating time and reducing energy consumption.

[0046] However, in actual use, it was found that there are many problems with the air intake structure in the existing health pot, so the air intake structure was improved.

[0047] The following is in conjunction with the appendix Figure 1 - Appendix Figure 9 The apparatus of this embodiment will be described. The appendix therein... Figure 1 This is a schematic diagram of the device in this embodiment, with attached... Figure 2 This is a cross-sectional view of the internal structure of the appliance in this embodiment, with attached... Figure 3 For the appendix Figure 2 A magnified view of point A in the image, with appendix. Figure 4 This is a schematic diagram showing the disassembled state of the apparatus in this embodiment. Figure 5This is a schematic diagram of the disassembled state of the steam generator of the appliance in this embodiment, with attached... Figure 6 This is a cross-sectional view of the internal structure of the steam generator of the appliance in this embodiment, with attached... Figure 7 In this embodiment, 'a' is a top view of the steam generator of the appliance. Figure 7 In the diagram, b is another internal structural cross-sectional view of the steam generator of the appliance in this embodiment. Figure 8 This is a schematic diagram of the check valve component of the device in this embodiment. Figure 9 This is a cross-sectional view of the internal structure of the second connector of the device in this embodiment.

[0048] Specifically, this appliance includes a base 1, a kettle body 2, and a steam generator 3. The steam generator 3 is installed inside the base 1, and the kettle body 2 is placed on the base 1.

[0049] The base 1 is provided with a first connector 4 for connecting to the steam generator 3, and the handle 21 of the kettle body 2 is provided with a second connector 5 at the lower part and the second connector 5 is connected to the inner cavity 22 of the kettle body 2. The first connector 4 and the second connector 5 are detachably connected.

[0050] A one-way structure 6 is provided in the first connector 4 and / or the second connector 5; or, a one-way structure 6 is provided between the first connector 4 and the second connector 5, wherein the allowed flow direction of the one-way structure 6 is the same as the steam flow direction.

[0051] When the kettle body 2 is placed on the base 1, the first connector 4 and the second connector 5 are plugged in and connected.

[0052] When this appliance is in operation, the kettle body 2 is placed on the base 1, and the first connector 4 on the base 1, which is used to connect the steam generator 3, is plugged into the second connector 5 at the bottom of the handle 21 of the kettle body 2.

[0053] Steam generator 3 produces steam, which enters through first connector 4. Since the first connector 4 and / or the second connector 5 are provided with a one-way structure 6, or a one-way structure 6 is provided between the first connector 4 and the second connector 5, the steam can only enter the inner cavity 22 of the pot body 2 from the first connector 4 through the second connector 5 in the direction allowed by the one-way structure 6, so as to heat the food in the pot body 2.

[0054] During the heating process, the one-way structure 6 effectively prevents liquids and steam in the kettle body 2 from flowing back into the steam generator 3, ensuring the normal operation of the steam generator 3.

[0055] When it is necessary to remove the kettle body 2, simply lift the kettle body 2 off the base 1, the first connector 4 and the second connector 5 will separate, and the steam passage will be disconnected.

[0056] As can be seen, unlike existing technologies where the steam channel is located at the top of the kettle body 2, affecting the taking and placing of food, or where the bottom steam guide structure obstructs the taking and placing of food, this appliance places the steam channel connection structure at the lower part of the handle 21 of the kettle body 2. In daily use, the user will not be interfered with by the steam channel structure when taking and placing the kettle body 2, and can operate more smoothly, greatly improving the convenience of use.

[0057] Furthermore, compared to existing technologies where the steam channel design leads to excessively thick sidewalls of the kettle body 2, thus increasing production costs, this appliance avoids complex designs for other parts of the kettle body 2 by setting a connector at the bottom of the handle 21. This makes the overall structure of the kettle body 2 simpler and more reasonable, effectively reducing production costs.

[0058] Meanwhile, the problem of the handle 21 becoming too hot due to the steam channel in the handle in the existing technology can also be solved in this appliance. The connector of the steam channel is set at the lower part of the handle 21, so the heat in the steam channel will not be directly transferred to the handle 21. Users will not be burned by the handle 21 when picking up or putting down the kettle body 2, which greatly improves the safety of use.

[0059] Finally, the one-way structure 6 provided in the first connector 4 and / or the second connector 5, or the one-way structure 6 provided between the first connector 4 and the second connector 5, can effectively prevent the liquid and steam in the kettle body 2 from flowing back to the steam generator 3. This not only ensures the normal operation of the steam generator 3 and extends its service life, but also avoids the safety hazards and equipment failures that may be caused by liquid backflow.

[0060] The specifics are as follows (see attached). Figure 3 As shown in the illustrated embodiment, the unidirectional structure 6 is specifically disposed within the second connector 5.

[0061] In the illustrated embodiment, the unidirectional structure 6 may specifically be spherical.

[0062] When this appliance is in operation, the spherical one-way structure 6 within the second connector 5 offers minimal resistance to the forward flow of steam. Steam can pass through smoothly with minimal pressure loss, ensuring efficient steam transmission. In scenarios requiring rapid steam entry into the kettle body 2 for heating, this design quickly meets the demand, improving the heating efficiency of the kettle and saving users waiting time. Simultaneously, it responds quickly and blocks the channel under reverse pressure, effectively preventing backflow. Compared to other complex one-way structures 6, its action is faster and more reliable, greatly enhancing the stability and effectiveness of the one-way conduction function.

[0063] Furthermore, the use of a spherical shape as the unidirectional structure 6 results in an extremely simple design. The sphere itself has a simple structure, making it less prone to malfunctions such as loosening or jamming of components within the second connector 5. During long-term use, the spherical unidirectional structure 6, due to its smooth surface, experiences relatively uniform wear and exhibits high durability when subjected to the impact of steam and potential backflow. This simple and durable structural design reduces the manufacturing difficulty and cost of the unidirectional structure 6, while also reducing the frequency of appliance repair and replacement due to malfunctions of the unidirectional structure 6, providing users with a more reliable user experience.

[0064] For details, see attached. Figure 2 and appendix Figure 3 As shown, the base 1 has a first through hole 11 through the top wall of the kettle body 2, and one of the interfaces of the first connector 4 is located at the first through hole 11 and the other interface is connected to the steam generator 3.

[0065] The second connector 5 is located in the cavity area 211 at the lower part of the handle 21 and a second through hole 212 is provided through the bottom wall of the cavity area 211. One end of the second connector 5 extends out of the second through hole 212 and the other end is connected to the inner cavity 22 of the pot body 2.

[0066] When the kettle body 2 is placed on the base 1, one of the connectors of the second connector 5 is inserted into one of the interfaces of the first connector 4.

[0067] When this appliance is in operation, if the user places the kettle body 2 on the base 1, the connector of the second connector 5, which extends into the second through hole 212, will precisely insert into the interface of the first connector 4 located at the first through hole 11. This establishes a steam transmission channel from the steam generator 3, through the first connector 4 and the second connector 5, and finally into the kettle body 2. Steam enters the kettle body 2 through this channel to heat the food inside. When heating is complete, the user lifts the kettle body 2 away from the base 1, and the second connector 5 separates from the first connector 4, disconnecting the steam transmission channel. Steam generated by the steam generator 3 no longer enters the kettle body 2.

[0068] It can be seen that the base 1 and the kettle body 2 are connected by the ingenious cooperation of the first through hole 11, the first connector 4, the second through hole 212, and the second connector 5. This design makes full use of the space on the top wall of the base 1 and the lower part of the handle 21 of the kettle body 2, making the overall structure more compact. Compared with the complex and space-consuming method of setting the steam channel on the top, bottom, or side wall of the kettle body 2, this design greatly optimizes the internal structural layout of the appliance and improves the space utilization rate.

[0069] Furthermore, the first connector 4 and the second connector 5 are respectively located at specific through-hole positions, making installation simple and straightforward; they can be placed and connected directly. During later maintenance, if either the first connector 4 or the second connector 5 malfunctions, their clearly defined and relatively independent locations facilitate disassembly and replacement, reducing maintenance costs and difficulty and improving repair efficiency.

[0070] More importantly, the first connector 4 and the second connector 5 are connected by a plug-in joint, and their positions are precisely designed to ensure a tight connection when the kettle body 2 is placed on the base 1, minimizing the risk of leakage during steam transmission. Stable steam transmission not only guarantees consistent heating performance but also avoids energy waste and safety hazards that could result from steam leakage, thus improving the overall performance of the appliance.

[0071] For details, see attached. Figure 3 As shown, the inner cavity 22 of the kettle body 2 has a connecting pipe 221 connected to the side wall, and the connecting pipe 221 extends outward to connect with the second connector 5.

[0072] A check valve 7 is sealed at the port of the connecting pipe 221 located on the side wall of the inner cavity 22.

[0073] When this appliance is in operation, the check valve 7 plays a crucial role when the internal pressure of the kettle body 2 changes, such as when steam condenses and reduces pressure after heating stops, or when there is a potential for liquid backflow during operation. The check valve 7 is sealed at the port of the connecting pipe 221 located on the side wall of the inner cavity 22. When food in the kettle body 2 attempts to flow back from the inner cavity 22 of the kettle body 2 into the connecting pipe 221, the check valve 7 will automatically close the port under the action of the pressure difference, preventing backflow from occurring.

[0074] It is understood that the addition of a check valve 7 at the port of the connecting pipe 221 enhances the appliance's ability to prevent food backflow, especially at the end area of ​​the connecting pipe 221, to avoid sticking or blocking the port of the connecting pipe 221.

[0075] For details, see attached. Figure 3 and appendix Figure 8 As shown, the check valve 7 has a through-hole 71, and multiple check plates 72 are provided at the end of the through-hole 71. The multiple check plates 72 are in an outwardly arched arc shape. It should be noted that during steam discharge, the check plates 72 can elastically deform outward, but the check plates 72 cannot deform inward. This is because the multiple check plates 72 block each other, thereby preventing food from entering the pipe.

[0076] When this appliance is in operation, steam originates from the steam generator 3, passes sequentially through the first connector 4 of the base 1, the second connector 5 at the lower part of the handle 21 of the kettle body 2, and the connecting pipe 221, and finally reaches the check valve 7. Because the steam has a certain pressure, when the steam impacts the check valve 7, the pressure acting on the multiple outwardly arched check valves 72 causes the check valves 72 to open outwards, allowing the steam to smoothly pass through the check valve through-hole 71 and enter the inner cavity 22 of the kettle body 2 to heat the food inside.

[0077] When pressure changes occur inside the kettle, such as a pressure drop due to steam condensation, or when liquid tends to flow back due to improper operation, the flowing liquid or steam exerts reverse pressure on the check valve 72. Under this reverse pressure, the check valve 72 quickly moves towards the center of the check hole 71, and multiple check valves 72 fit together tightly, thus sealing the check hole 71 and preventing food from sticking or blocking the port of the connecting pipe 221.

[0078] As can be seen, the design of multiple outwardly arched arc-shaped check plates 72 greatly enhances the backflow prevention capability of the check element 7. Under positive steam pressure, the check plate 72 can open quickly to ensure smooth steam passage; while when reverse pressure occurs, the check plate 72 can quickly and tightly close to effectively prevent backflow, thereby preventing food from sticking or blocking the port of the connecting pipe 221.

[0079] Specifically, a one-way valve is installed inside the check hole 71, and the one-way valve allows the steam to flow in the same direction.

[0080] When this appliance is in operation, if the pressure inside the kettle changes during heating or after heating stops, causing a backflow tendency of liquid or steam, the backflowing material will impact the one-way valve. However, due to the one-way conduction characteristic of the one-way valve, it will prevent the backflowing material from passing in the opposite direction.

[0081] It can be seen that it can effectively prevent backflow, significantly reduce the risk of damage to the steam generator 3 due to backflow, thereby extending the overall service life of the appliance and reducing the user's maintenance costs and equipment replacement frequency.

[0082] Furthermore, the one-way valve allows for more precise control of steam flow. The one-way valve only opens when steam flows in the normal operating direction, ensuring stable and efficient steam entry into the kettle body. This prevents reduced heating efficiency due to steam leakage or backflow, guaranteeing that the food inside the kettle is heated evenly and quickly, thus improving the kettle's heating performance and user experience.

[0083] For details, see attached. Figure 1 and appendix Figure 4As shown, the top of the base 1 is provided with a first area 12 for placing the pot body 2, and the first area 12 is provided with an assembly notch 121 that penetrates the top wall of the base 1.

[0084] The steam generator 3 includes a housing 31 and a cover 32. The housing 31 is located at the assembly notch 121 of the base 1. A heating tube 33 is installed inside the housing 31. The housing 31 is provided with a steam generating groove 311 with an opening at the top. The cover 32 covers the groove of the assembly notch 121 and is detachably connected to the housing 31 or the base 1. The cover 32 is used to block the top opening of the steam generating groove 311.

[0085] When the appliance is in operation, the kettle body 2 is placed in the first region 12 at the top of the base 1. The assembly notch 121 of the first region 12 fits tightly with the steam generator 3, and the housing 31 of the steam generator 3 is located at the assembly notch 121 of the base 1.

[0086] After the steam generator 3 is started, the heating tube 33 inside the housing 31 starts to work, converting electrical energy into heat energy to heat the water in the steam generating tank 311.

[0087] As the temperature rises, the liquid gradually vaporizes into steam, which continuously accumulates in the steam generating tank 311. Since the cover 32 fits into the slot of the assembly notch 121 and is detachably connected to the housing 31 or the base 1, it effectively blocks the top opening of the steam generating tank 311, allowing steam to pass only through a specific channel, namely through the steam generating tank 311.

[0088] Since the first connector 4 is connected to the steam generator 3, steam will flow into the first connector 4, then into the second connector 5, and finally into the pot body 2 to heat the food inside the pot.

[0089] When maintenance, cleaning, or replacement of parts is required for the steam generator 3, the cover 32 can be removed from the mounting notch 121 to easily access the steam generating tank 311 and the heating tube 33 and other components inside the housing 31.

[0090] It can be seen that the steam generator 3 is cleverly set at the assembly notch 121 of the base 1, making full use of the internal space of the base 1, making the overall structure more compact and reasonable. This design avoids the problems of occupying extra space and complicated connection caused by the external placement of the steam generator 3, and improves the space utilization and overall aesthetics of the appliance.

[0091] Furthermore, the detachable connection between the cover 32 and the housing 31 or base 1 greatly facilitates the maintenance and cleaning of the steam generator 3. Users can easily open the cover 32 to clean the inside of the steam generating tank 311, removing scale, impurities, etc., ensuring the normal operation of the steam generator 3 and the cleanliness of the steam. At the same time, easily damaged parts such as the heating element 33 can be easily inspected, repaired, or replaced after disassembling the cover 32, reducing maintenance costs and difficulty.

[0092] For details, see attached. Figure 5 - Appendix Figure 7 As shown, the steam generator 3 includes a housing 31 and a heating tube disposed inside the housing 31. A spirally arranged steam generating tank 311 is disposed inside the housing 31. The steam generating tank 311 has an inner connector 312 and an outer interface 313.

[0093] The housing 31 is provided with a water inlet 314 and a steam outlet 315. The water inlet 314 is connected to the inner connector 312 of the steam generating tank 311, and the steam outlet 315 is connected to the outer interface 313 of the steam generating tank 311. The heating tube includes an arc-shaped heating section 331 and the arc-shaped heating section 331 is located at the outer ring of the spiral steam generating tank 311.

[0094] When the appliance is in operation, water can flow in from the inlet 314. The inlet 314 is connected to the inner connector 312 of the steam generating tank 311, and the liquid enters the spirally arranged steam generating tank 311 through this connection.

[0095] At this point, the heating element begins to operate, converting electrical energy into heat energy. The arc-shaped heating section 331 of the heating element is located at the outer ring of the spiral steam generating tank 311, heating the liquid within the tank. Because the steam generating tank 311 is spiral-shaped, the liquid, as it flows within the tank, fully absorbs the heat emitted by the arc-shaped heating section 331, gradually heating up and vaporizing into steam. As steam is continuously generated, it accumulates within the steam generating tank 311 and flows through the outer interface 313 to the steam outlet 315. Finally, the steam is discharged through the steam outlet 315 and enters the steam transmission channel, composed of the first connector 4 and the second connector 5, connected to the steam generator 3, for heating the food and other items in the kettle 2.

[0096] It should be noted that the heating tube heats the entire housing 31, and the temperature is highest at the outer ring of the corresponding spiral steam generating tank 311, gradually decreasing towards the inside. During operation, water flows into the spiral steam generating tank 311, and there is a gradual heating process, so that the steam is mainly concentrated in the outer ring. The generated steam can quickly enter the steam transmission channel composed of the first connector 4 and the second connector 5 through the steam outlet 315.

[0097] As can be seen, the arc-shaped heating section 331 of the heating tube is located on the outer ring of the steam generating tank 311, and is closely fitted with the spiral-shaped steam generating tank 311. This design allows the heat generated by the heating tube to be directly and efficiently transferred to the water in the steam generating tank 311, greatly improving heat transfer efficiency. Compared with traditional heating methods, this reduces heat loss, enables the liquid to be converted into steam in a shorter time, improves the working efficiency of the steam generator 3, and saves energy consumption.

[0098] Furthermore, the steam generating tank 311 adopts a spiral arrangement, increasing the liquid flow path and heating area within the limited shell 31. During the flow of the liquid within the spiral tank, it can be heated multiple times, fully absorbing heat and achieving efficient space utilization. At the same time, this compact structural design allows the steam generator 3 to possess powerful steam generation capabilities without occupying excessive space, contributing to the miniaturization and integration of the entire appliance.

[0099] For details, see attached. Figure 7 As shown, the diameter of the arc-shaped heating section 331 is larger than the width of the opening of the spiral steam generating tank 311. This larger diameter allows for greater heat radiation coverage over the steam generating tank 311. Compared to cases where the heating section diameter is similar to or smaller than the opening width, more heat can be directly radiated to the outer wall of the steam generating tank 311, reducing heat loss during transfer and improving heat utilization efficiency. This enables the steam generator 3 to convert liquid into steam in a shorter time, significantly increasing the steam generation rate and meeting the user's need for rapid heating.

[0100] For details, see attached. Figure 9 As shown, the second connector 5 in this embodiment is also equipped with a steam anti-spray structure. In actual use, it has been found that when the user picks up the kettle body 2, i.e., pulls the first connector 4 away from the second connector 5, a certain amount of steam will spray out from the second connector 5. This provides a very poor user experience and may even pose a risk of burns from the high-temperature steam.

[0101] Therefore, in this embodiment, a steam anti-spray structure is provided inside the second connector 5 to prevent steam from being ejected from the second connector 5 when the first connector 4 is removed. The specific structure is as follows: the second connector 5 has a venting cavity 51, one side of which is connected to the steam generator 3 through a first channel 52, and the other side is used for the first connector 4 to be inserted and connected through a second channel 53;

[0102] A connecting pipe 54 is movably disposed within the second connector 5. The side wall of the connecting pipe 54 has a through-type ventilation notch 541. One end of the connecting pipe 54 is located within the second channel 53, and the other end of the connecting pipe 54 is located within the ventilation cavity 51 and has a sealing element 55. An elastic element 56 is disposed between the other end of the connecting pipe 54 and the inner wall of the ventilation cavity 51.

[0103] When the first connector 4 is inserted into the second channel 53 of the second connector 5, the first connector 4 abuts against the connecting tube 54 and drives the connecting tube 54 to move downward, so that the venting notch 541 of the connecting tube 54 is exposed and communicates with the venting chamber 51.

[0104] When the first connector 4 leaves the second channel 53, the elastic element 56 resets and drives the connecting tube 54 to move upward, so that the seal 55 seals the port of the second channel 53.

[0105] When this appliance is in operation, when the first connector 4 is inserted into the second channel 53 of the second connector 5, the first connector 4 exerts a resisting force on the connecting pipe 54, overcoming the elastic force of the elastic element 56 and driving the connecting pipe 54 downward. At this time, the vent 541 on the side wall of the connecting pipe 54 is exposed and communicates with the vent chamber 51. The steam generated by the steam generator 3 can sequentially enter the first connector 4 through the first channel 52, the vent chamber 51, the vent 541, the connecting pipe 54, and the second channel 53. When the user picks up the kettle body 2 and removes the first connector 4, the first connector 4 no longer exerts a resisting force on the connecting pipe 54, the elastic element 56 returns to its original position, and the connecting pipe 54 is driven upward until the sealing element 55 at the other end of the connecting pipe 54 seals the port of the second channel 53, so that steam cannot be ejected from the second connector 5.

[0106] It is evident that by incorporating such a steam anti-spray structure within the second connector 5, steam is effectively prevented from escaping from the second connector 5 when the user removes the first connector 4. This significantly improves the user experience, eliminates the potential safety hazard of burns from high-temperature steam, and enhances product safety. Furthermore, this ingenious design, through the cooperation of a simple connecting pipe 54, an elastic element 56, and a sealing element 55, effectively controls steam ejection. The structure is relatively simple, low-cost, and highly reliable, facilitating large-scale production and promotion of the product.

[0107] Specifically, the elastic element 56 can be a spring or other elastic workpiece, such as rubber, elastic washer, etc.

[0108] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. An appliance that uses steam for heating, characterized in that, include: The base (1), the kettle body (2) and the steam generator (3) are arranged inside the base (1) and the kettle body (2) is placed on the base (1); The base (1) is provided with a first connector (4) for connecting to the steam generator (3), and the handle (21) of the kettle body (2) is provided with a second connector (5) at the bottom and the second connector (5) is connected to the inner cavity (22) of the kettle body (2). The first connector (4) and the second connector (5) are detachably connected. A one-way structure (6) is provided in the first connector (4) and / or the second connector (5); or, a one-way structure (6) is provided between the first connector (4) and the second connector (5), wherein the direction of flow of the one-way structure (6) is the same as the direction of steam flow. When the pot body (2) is placed on the base (1), the first connector (4) and the second connector (5) are plugged in and connected.

2. The appliance for heating using steam according to claim 1, characterized in that, The top wall of the base (1) facing the kettle body (2) is provided with a first through hole (11), and one of the interfaces of the first connector (4) is located at the first through hole (11) and the other interface is connected to the steam generator (3). The second connector (5) is located in the cavity area (211) at the bottom of the handle (21) and a second through hole (212) is provided through the bottom wall of the cavity area (211). One end of the second connector (5) extends out of the second through hole (212) and the other end is connected to the inner cavity (22) of the pot body (2). When the kettle body (2) is placed on the base (1), one of the connectors of the second connector (5) is inserted into one of the interfaces of the first connector (4).

3. The appliance for heating using steam according to claim 1, characterized in that, The inner cavity (22) of the pot body (2) has a connecting pipe (221) on its side wall, and the connecting pipe (221) extends outward to connect with the second connector (5); A check valve (7) is sealed at the port of the connecting pipe (221) located on the side wall of the inner cavity (22).

4. The appliance for heating using steam according to claim 3, characterized in that, The check valve (7) has a through-hole (71) and a plurality of check plates (72) are provided at the end of the through-hole (71). The plurality of check plates (72) are in the shape of an outwardly arched arc.

5. The appliance for heating using steam according to claim 4, characterized in that, A one-way valve is installed in the check hole (71), and the one-way valve allows the steam to flow in the same direction.

6. An appliance for heating using steam according to any one of claims 1-5, characterized in that, The top of the base (1) is provided with a first area (12) for placing the pot body (2), and an assembly notch (121) is provided in the first area (12) for penetrating the top wall of the base (1); The steam generator (3) includes a housing (31) and a cover (32). The housing (31) is located at the assembly notch (121) of the base (1). A heating tube (33) is installed inside the housing (31). The housing (31) is provided with a steam generating groove (311) with an opening at the top. The cover (32) is fitted into the groove of the assembly notch (121) and is detachably connected to the housing (31) or the base (1). The cover (32) is used to seal the top opening of the steam generating groove (311).

7. An appliance for heating using steam according to any one of claims 1-5, characterized in that, The steam generator (3) includes a housing (31) and a heating tube disposed inside the housing (31). A spirally arranged steam generating tank (311) is disposed inside the housing (31). The steam generating tank (311) has an inner connector (312) and an outer interface (313). The housing (31) is provided with a water inlet (314) and a steam outlet (315). The water inlet (314) is connected to the inner connector (312) of the steam generating tank (311), and the steam outlet (315) is connected to the outer interface (313) of the steam generating tank (311). The heating tube includes an arc-shaped heating section (331) and the arc-shaped heating section (331) is located at the outer ring of the spiral steam generating tank (311).

8. The appliance for heating using steam according to claim 7, characterized in that, The diameter of the arc-shaped heating section (331) is greater than the width of the opening of the spiral steam generating tank (311).

9. An appliance for heating using steam according to any one of claims 1-5 and 8, characterized in that, The second connector (5) has a venting chamber (51). One side of the venting chamber (51) is connected to the steam generator (3) through the first channel (52), and the other side is connected to the first connector (4) through the second channel (53). A connecting pipe (54) is movably disposed inside the second connector (5). The side wall of the connecting pipe (54) has a through-type ventilation notch (541). One end of the connecting pipe (54) is located inside the second channel (53), and the other end of the connecting pipe (54) is located inside the ventilation cavity (51) and has a sealing element (55). An elastic element (56) is disposed between the other end of the connecting pipe (54) and the inner wall of the ventilation cavity (51). When the first connector (4) is inserted into the second channel (53) of the second connector (5), the first connector (4) abuts against the connecting tube (54) and drives the connecting tube (54) to move downward, so that the ventilation opening (541) of the connecting tube (54) is exposed and communicates with the ventilation chamber (51); When the first connector (4) leaves the second channel (53), the elastic element (56) resets and drives the connecting tube (54) to move upward, so that the seal (55) seals the port of the second channel (53).

10. A health-preserving kettle, characterized in that, Including an appliance that uses steam for heating according to any one of claims 1-9.

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