Health pot

Abstract

The embodiment of the utility model provides a health-care kettle which comprises a kettle body, a kettle cover and a kettle cover. The kettle cover covers the opening; the kettle cover sealing ring sleeves the periphery of the kettle cover and is used for sealing a gap between the kettle cover and the kettle body; the micro-pressure valve is detachably arranged on the kettle cover, the micro-pressure valve is provided with a first air inlet and an air outlet, the first air inlet is communicated with the inner cavity of the kettle body, the air outlet is communicated with the outside, and the micro-pressure valve can be opened when the air pressure in the kettle body reaches the first set pressure so that the first air inlet can be communicated with the air outlet. According to the embodiment, the gap between the kettle cover and the kettle body is sealed by the kettle cover sealing ring, and the micro-pressure valve is matched for exhausting, so that on one hand, the heat exchange speed of food materials in the kettle body and the outside can be reduced, the temperature of the food materials in the kettle body cannot be quickly reduced after the health-preserving kettle stops heating, the energy consumption can be reduced, and on the other hand, the loss of nutrient substances can be reduced; the cooking effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, and particularly relates to a health care kettle. Background Art

[0002] At present, during the heating process of the health care kettles on the market, the generated steam will be directly discharged to the outside through the spout. Then, after cooking and boiling, nutrients are very easy to be directly discharged and lost. Moreover, after stopping heating, the temperature inside the kettle body drops quickly, and the boiling point temperature cannot be maintained for a long time, resulting in high energy consumption. Content of the Utility Model

[0003] Therefore, the purpose of the present utility model is to provide a health care kettle to solve at least one of the problems existing in the above-mentioned prior art or related technologies.

[0004] An embodiment of one aspect of the present utility model provides a health care kettle, which includes: a kettle body with an opening at the top; a kettle lid covering the opening; a kettle lid sealing ring sleeved on the outer periphery of the kettle lid for sealing the gap between the kettle lid and the kettle body; a micro-pressure valve detachably arranged on the kettle lid, the micro-pressure valve having a first air inlet and an exhaust port, the first air inlet communicating with the inner cavity of the kettle body, and the exhaust port communicating with the outside, and the micro-pressure valve can be opened when the air pressure inside the kettle body reaches a first set pressure to connect the first air inlet and the exhaust port.

[0005] For the health care kettle provided by this embodiment of this aspect, during the heating process of the health care kettle, a high-temperature environment with a certain pressure can be formed inside the kettle body. Compared with the related technology where the kettle body can always discharge steam to the outside through the spout, on the one hand, the heat exchange speed between the ingredients inside the kettle body and the outside can be reduced, so that after the health care kettle stops heating, the temperature of the ingredients inside the kettle body will not drop quickly, the energy consumption can be reduced, and the heat preservation effect is good. On the other hand, the loss of nutrients can be reduced and the cooking effect can be improved.

[0006] In addition, the micro-pressure valve is detachably arranged on the kettle lid, which is convenient to remove the micro-pressure valve for cleaning, avoiding the accumulation of water stains or food residues in the micro-pressure valve and resulting in peculiar smell, and ensuring the drinking health of the health care kettle.

[0007] In some embodiments, the micro-pressure valve includes: a valve seat with the first air inlet arranged thereon; a valve cover covering the valve seat and enclosing a receiving cavity with the valve seat, the exhaust port being arranged on the valve cover, and the first air inlet can communicate with the exhaust port through the receiving cavity; a first valve core movably arranged at the first air inlet and closing the first air inlet, and the first valve core can open the first air inlet when the air pressure inside the kettle body reaches the first set pressure.

[0008] In these embodiments, the micro-pressure valve includes a valve cover and a valve seat as a whole, and the first valve core is arranged on the valve seat, which is convenient for disassembling the micro-pressure valve as a whole and cleaning the valve cover and the valve seat at the same time. The exhaust port is arranged on the valve cover, which is convenient for direct communication with the outside world, and the first air inlet is arranged on the valve seat, which is also convenient for communication with the internal cavity of the kettle body.

[0009] In some embodiments, the bottom wall of the valve seat has a hollow air inlet column extending into the accommodating cavity, the top opening of the air inlet column is configured as a first air inlet, the bottom of the air inlet column extends downward from the kettle cover, and the bottom of the air inlet column has a gas inlet connected to the internal cavity of the kettle body.

[0010] In these embodiments, an air intake column is provided on the valve seat, and the top opening of the air intake column is utilized to form an air intake port. Compared with directly opening the air intake port on the bottom wall of the valve seat, it is convenient for gas to be collected inside the air intake column and then push the first valve core to move, thereby allowing the first valve core to open the first air intake port. This is beneficial for calculating the pressure required to push the first valve core based on the cross-sectional area of the air intake column, and facilitates the design of a micro-pressure valve that meets the pressure relief requirements.

[0011] In some embodiments, the first valve core includes a plug body and a guide rod located below the plug body. The plug body is located above the air intake column and is used to open or close the first air intake port. A guide structure that cooperates with the guide rod is provided on the inner wall of the air intake column, and the guide rod can move up and down along the guide structure.

[0012] In these embodiments, the first valve core includes a plug body and a guide rod, which has a simple structure and is easy to process. Moreover, the guide rod is extended into the interior of the air inlet column to cooperate with the guide structure, which can ensure that the first valve core moves on a set path, thereby ensuring that the first valve core can accurately open and close the first air inlet.

[0013] In some embodiments, support ribs are provided on the inner wall of the air intake column, and a mounting opening is provided on the support ribs. The mounting opening is constructed as a guide structure, and a guide rod movably extends into the mounting opening. A limiting protrusion is provided on the part of the guide rod located below the mounting opening, and the limiting protrusion is used to cooperate with the support ribs on the outer periphery of the mounting opening to prevent the guide rod from detaching from the mounting opening.

[0014] In these embodiments, the guide rod is inserted into the installation opening and moves up and down along the installation opening, and the guiding effect is good. In addition, the portion of the guide rod located below the installation opening is provided with a limiting protrusion, and the limiting protrusion is used to limit the guide rod from being separated from the installation opening, so that the first valve core can be reset and block the first air inlet under the action of its own gravity, thereby avoiding failure of the micro-pressure valve.

[0015] In some embodiments, the top wall of the valve cover protrudes downward to form a hollow exhaust column, the top opening of the exhaust column forms an exhaust port, the exhaust column is located on one side of the intake column in the horizontal direction, and the bottom opening of the exhaust column is lower than the top opening of the intake column.

[0016] In these embodiments, after the steam enters the intake column, it will enter the accommodation chamber, and then enter the exhaust column through the bottom opening of the lower exhaust column, and then be discharged from the exhaust port. By adding the exhaust column here and making the bottom opening of the exhaust column lower than the top opening of the intake column, the exhaust path can be increased and the steam discharge speed can be slowed down, thereby improving safety. This can prevent the steam from directly rushing out of the exhaust port upward after entering the accommodation chamber under high pressure, which may cause potential safety hazards.

[0017] In some embodiments, a second intake port is further provided on the bottom wall of the accommodation chamber. The micro-pressure valve further includes: a second valve core, which is arranged at the second intake port. The second valve core can open the second intake port when the air pressure in the kettle body reaches a second set pressure, so that the inside of the kettle body is communicated with the accommodation chamber, and the second set pressure is greater than the first set pressure.

[0018] In these embodiments, in addition to the first valve core, the micro-pressure valve also has a second valve core. If the first valve core is damaged and cannot open the first intake port for exhaust in time, the second valve core and the second intake port can play an insurance role and improve the safety of using the health kettle.

[0019] In some embodiments, the second valve core is an elastic sealing pad, and the elastic sealing pad is arranged below the second intake port and blocks the second intake port; wherein, the elastic sealing pad can deform when the air pressure in the kettle body reaches the second set pressure, so that a gap for gas to pass through is formed between the elastic sealing pad and the second intake port. The elastic sealing pad can also allow the liquid in the accommodation chamber to flow back into the kettle body through the second intake port when the air pressure in the kettle body is lower than the first set pressure. The elastic sealing pad can also seal the second intake port when the air pressure in the kettle body is greater than the first set pressure and less than the second set pressure.

[0020] In these embodiments, designing the second valve core as an elastic sealing pad has a simple structure and is convenient for processing. Moreover, when the air pressure in the kettle body is lower than the first set pressure, a gap for liquid to flow back is left between the elastic sealing pad and the second intake port. At this time, the second valve core can be used as a reflux valve, which is convenient for the liquefied steam in the micro-pressure valve to flow back into the kettle body through the second intake port. Moreover, the elastic sealing pad can also seal the second intake port when the air pressure in the kettle body is greater than the first set pressure and less than the second set pressure, which is convenient for the steam in the kettle body to be exhausted through the micro-pressure valve first.

[0021] In some embodiments, an installation groove is provided at the top of the kettle lid, and a through hole is provided on the bottom wall of the installation groove. The micro-pressure valve is detachably arranged in the installation groove and is communicated with the inner cavity of the kettle body through the through hole. The health kettle further includes a micro-pressure valve sealing ring, and the micro-pressure valve sealing ring is distributed circumferentially around the micro-pressure valve for sealing the gap between the micro-pressure valve and the kettle lid.

[0022] In these embodiments, an installation groove is provided at the top of the kettle lid to accommodate the micro-pressure valve, facilitating the quick disassembly and assembly of the micro-pressure valve by aligning it with the position of the installation groove. The gap between the micro-pressure valve and the kettle lid is sealed by a micro-pressure valve sealing ring to prevent the gas inside the kettle body from leaking through this gap, which is beneficial for creating a high-temperature sealed environment inside the kettle body.

[0023] In some embodiments, the micro-pressure valve sealing ring is an elastic member fixed in the installation groove. The micro-pressure valve is detachably connected to the kettle lid through plugging and unplugging connection with the micro-pressure valve sealing ring.

[0024] In these embodiments, the micro-pressure valve sealing ring is fixed in the installation groove. When installing the micro-pressure valve, directly insert the micro-pressure valve into the installation groove and at the same time extend it into the micro-pressure valve sealing ring, squeezing the micro-pressure valve sealing ring between the micro-pressure valve and the groove wall of the installation groove. On the one hand, the plugging and unplugging connection method is convenient for disassembly and assembly. On the other hand, the micro-pressure valve sealing ring can be squeezed and deformed, so as to better seal the gap between the micro-pressure valve and the groove wall of the installation groove.

[0025] In some embodiments, a connecting rib protruding upward is provided on the outer periphery of the through hole on the bottom wall of the installation groove. The micro-pressure valve sealing ring includes a first circular main body and a flanging structure that bends outward and downward from the top end of the first circular main body. A slot is formed between the flanging structure and the first circular main body. The top of the connecting rib is inserted into the slot, and the first circular main body is located on the side of the connecting rib facing the through hole for close fitting with the micro-pressure valve. The health kettle further includes a fixing seat, and the fixing seat is connected to the groove wall of the installation groove to clamp the flanging structure between the fixing seat and the connecting rib.

[0026] In these embodiments, the micro-pressure valve sealing ring includes a first circular main body and a flanging structure. Insert the connecting rib into the slot formed by the flanging structure and the first circular main body, and use the fixing seat to press the flanging structure against the connecting rib, which is beneficial for firmly connecting the micro-pressure valve sealing ring to the installation groove, preventing the micro-pressure valve sealing ring from falling off during the process of plugging and unplugging the micro-pressure valve and losing its sealing effect.

[0027] In some embodiments, the top of the micro-pressure valve protrudes outward from the kettle lid. It is convenient for users to hold the protruding part of the micro-pressure valve to disassemble the micro-pressure valve.

[0028] In some embodiments, a convex rib extending horizontally outward is provided at the top edge of the micro-pressure valve, and the convex rib is higher than the kettle lid. It is convenient for users to hold the convex rib to disassemble the micro-pressure valve.

[0029] In some embodiments, the valve cover is detachably connected to the valve seat. In this way, the valve cover can be opened to clean the inside of the micro-pressure valve and clean the valve cover and the valve seat separately, enabling more thorough cleaning of the micro-pressure valve.

[0030] In some embodiments, the first set pressure is less than or equal to 4 KPa. The air pressure inside the kettle body is exhausted through the micro-pressure valve before exceeding 4 KPa, avoiding potential safety hazards caused by excessive air pressure inside the kettle body.

[0031] In some embodiments, the health kettle further includes a pressure relief valve, which is disposed on the top of the kettle lid. The pressure relief valve can be opened when the air pressure inside the kettle body reaches the third set pressure, enabling the gas inside the kettle body to communicate with the outside through the pressure relief valve. The third set pressure is greater than the first set pressure. Then, when the micro-pressure valve is damaged, the pressure relief valve can play an insurance role to prevent the air pressure inside the kettle body from becoming excessive and exceeding the third set pressure, thus avoiding potential safety hazards.

[0032] In some embodiments, the kettle lid sealing ring includes a second ring body and at least one sealing rib circumferentially distributed outside the second ring body. The outer periphery of the kettle lid has a clamping groove, and the second ring body is clamped in the clamping groove. At least one sealing rib is in close contact with the inner wall of the kettle body.

[0033] In these embodiments, the kettle lid sealing ring is in close contact with the inner wall of the kettle body through at least one sealing rib. Since the sealing rib has a large deformation space, it can fit more closely to the inner wall of the kettle body, resulting in a good sealing effect. Especially when the number of sealing ribs is multiple, multiple seals can be achieved. Moreover, clamping the second ring body in the clamping groove can prevent the kettle lid sealing ring from moving up and down and detaching from the kettle lid.

[0034] In some embodiments, the sealing rib extends obliquely upward and outward from the outer side wall of the second ring body. Then, during the process of closing the kettle lid, as the kettle lid moves downward, the sealing rib will be squeezed by the inner wall of the kettle body towards the direction of the second ring body until the kettle lid is fully closed, and the sealing rib is in full contact with the inner wall of the kettle body, resulting in a good sealing effect. Moreover, the obliquely arranged sealing rib is not easily stuck with the inner wall of the kettle body, which is beneficial for the kettle lid to be fully closed.

[0035] In some embodiments, the sealing rib extends horizontally outward from the outer side wall of the second ring body. Then, during the process of closing the kettle lid, as the kettle lid moves downward, the sealing rib will be squeezed and deformed by the inner wall of the kettle body until the kettle lid is fully closed, and the sealing rib is in full contact with the inner wall of the kettle body, resulting in a good sealing effect.

[0036] Other aspects and / or advantages of the general concept of the present invention will be partially described in the following description, and some will be clear from the description, or can be learned through the implementation of the general concept of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Through the following description of the embodiments in conjunction with the drawings, the above and other objects and features of the present invention will become clearer. In the drawings:

[0038] Figure 1Shows a schematic structural diagram of a health care kettle according to an embodiment of the present application;

[0039] Figure 2 Shows a top view schematic diagram of a health care kettle according to an embodiment of the present application;

[0040] Figure 3 Show Figure 2 The cross-sectional schematic diagram in the A-A direction;

[0041] Figure 4 Shows an exploded view of a health care kettle according to an embodiment of the present application;

[0042] Figure 5 Shows a top view schematic diagram of a kettle lid according to an embodiment of the present application;

[0043] Figure 6 Show Figure 5 The cross-sectional schematic diagram in the B-B direction;

[0044] Figure 7 Shows an exploded view of a kettle lid according to an embodiment of the present application;

[0045] Figure 8 Shows a cross-sectional schematic diagram of a kettle lid according to an embodiment of the present application;

[0046] Figure 9 Shows an exploded view of a micro-pressure valve according to an embodiment of the present application;

[0047] Figure 10 Shows a longitudinal cross-sectional schematic diagram of a micro-pressure valve according to an embodiment of the present application;

[0048] Figure 11 Shows an internal structural schematic diagram of a micro-pressure valve according to an embodiment of the present application;

[0049] Figure 12 Shows a structural schematic diagram of a valve core according to an embodiment of the present application;

[0050] Figure 13 Shows a partial longitudinal cross-sectional schematic diagram of a kettle lid sealing ring according to an embodiment of the present application;

[0051] Figure 14 Shows a partial longitudinal cross-sectional schematic diagram of a kettle lid sealing ring according to another embodiment of the present application;

[0052] Figure 15 Shows a partial longitudinal cross-sectional schematic diagram of a kettle lid sealing ring according to still another embodiment of the present application;

[0053] Figure 16 Shows a curve graph of the temperature change of a health care kettle according to an embodiment of the present application and a health care kettle in the related art over time;

[0054] Figure 17 Shows a comparison chart of the nutritional costs of a health-preserving kettle according to an embodiment of the present application and a health-preserving kettle in the related art after cooking different ingredients.

[0055] Figures 1 to 17 Explanation of the reference numerals in the drawings:

[0056] 10 Kettle body;

[0057] 20 Kettle lid; 210 Installation groove; 211 Through hole; 212 Connecting rib; 220 Card slot;

[0058] 30 Kettle lid sealing ring; 310 Second ring body; 320 Sealing rib;

[0059] 40 Micro-pressure valve; 410 Valve seat; 411 First air inlet; 412 Second air inlet; 413 Air inlet column; 414 Support rib; 415 Installation port; 416 Snap; 417 Accommodating cavity; 418 Gas inlet; 420 First valve core; 421 Plug body; 422 Guide rod; 423 Limit protrusion; 430 Second valve core; 440 Valve cover; 441 Exhaust port; 442 Exhaust column; 443 Rib;

[0060] 50 Micro-pressure valve sealing ring; 510 First ring body; 520 Flanging structure;

[0061] 60 Fixed seat;

[0062] 70 Pressure relief valve;

[0063] 80 Handle. Detailed implementation manners

[0064] The following detailed implementation manners are provided to help the reader obtain a comprehensive understanding of the methods, devices, and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications, and equivalents of the methods, devices, and / or systems described herein will be clear. For example, the order of operations described herein is merely an example and is not limited to those set forth herein, but rather may be changed as will be clear after understanding the disclosure of the present application, except for operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for greater clarity and conciseness.

[0065] The features described herein may be implemented in different forms and should not be construed as limited to the examples described herein. On the contrary, the examples described herein are provided only to illustrate some of the many feasible ways of implementing the methods, devices, and / or systems described herein, which will be clear after understanding the disclosure of the present application.

[0066] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more thereof.

[0067] Although terms such as "first", "second", and "third" may be used herein to describe various components, elements, regions, layers, or parts, these components, elements, regions, layers, or parts should not be limited by these terms. Instead, these terms are only used to distinguish one component, element, region, layer, or part from another. Thus, without departing from the teachings of the examples, the first component, first element, first region, first layer, or first part described in the examples herein may also be referred to as the second component, second element, second region, second layer, or second part.

[0068] In the specification, when an element such as a layer, region, or substrate is described as being "on", "connected to", or "coupled to" another element, the element may be directly "on", directly "connected to", or "coupled to" the other element, or there may be one or more other elements therebetween. In contrast, when an element is described as being "directly on", "directly connected to", or "directly coupled to" another element, there may be no other elements therebetween.

[0069] The terms used herein are for the purpose of describing various examples only and are not intended to limit the disclosure. Unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. The terms "comprising", "including", and "having" specify the presence of the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof. The term "plurality" represents any quantity of two or more.

[0070] The definitions of orientation terms such as "above", "top", and "bottom" in this application are based on the orientation when the product is placed upright in the normal use state, unless otherwise specified to be based on the orientation in the drawings.

[0071] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs after understanding this utility model. Unless explicitly defined as such herein, terms such as those defined in a general dictionary should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and this utility model, and should not be interpreted in an idealized or overly formal manner.

[0072] The following will be combined with Figures 1 to 17 to introduce the health care kettle provided by the embodiments of this utility model.

[0073] As Figures 1 to 4 shown, an embodiment of one aspect of the present utility model provides a health-preserving kettle, which includes: a kettle body 10 with an opening at the top; a kettle lid 20 covering the opening; a kettle lid sealing ring 30 sleeved on the outer periphery of the kettle lid 20 for sealing the gap between the kettle lid 20 and the kettle body 10; a micro-pressure valve 40 detachably arranged on the kettle lid 20, the micro-pressure valve 40 having a first air inlet 411 and an exhaust port 441, the first air inlet 411 communicating with the inner cavity of the kettle body 10, the exhaust port 441 communicating with the outside, and the micro-pressure valve 40 being able to open when the air pressure in the kettle body 10 reaches a first set pressure so that the first air inlet 411 and the exhaust port 441 communicate with each other.

[0074] For the health-preserving kettle provided by this aspect of the embodiment, the gap between the kettle lid 20 and the kettle body 10 is sealed by the kettle lid sealing ring 30 and the micro-pressure valve 40 is used for exhausting air. Before the air pressure inside the kettle body 10 reaches the first set pressure, a sealed space is formed between the kettle lid 20 and the kettle body 10. Then, during the heating process of the health-preserving kettle, a high-temperature environment with a certain pressure can be formed inside the kettle body 10. Compared with the related art where the steam in the kettle body 10 can be discharged to the outside through the spout at any time, on the one hand, the heat exchange speed between the ingredients inside the kettle body 10 and the outside can be reduced, so that after the health-preserving kettle stops heating, the temperature of the ingredients inside the kettle body 10 will not drop quickly, which can reduce energy consumption and has a good heat preservation effect. On the other hand, the loss of nutrients can be reduced and the cooking effect can be improved.

[0075] In addition, the micro-pressure valve 40 is detachably arranged on the kettle lid 20, which is convenient to remove the micro-pressure valve 40 for cleaning, avoiding the accumulation of water stains or food residues in the micro-pressure valve 40 and the occurrence of peculiar smells, and ensuring the healthy drinking of the health-preserving kettle.

[0076] In the specific application process, after testing, under the same conditions, the health-preserving kettle of this embodiment can maintain a high temperature for a long time. As Figure 16 shown, Figure 16 the red curve in represents the temperature change of the health-preserving kettle of this embodiment over time, and the blue curve represents the temperature change of the health-preserving kettle in the related art over time. Referring to Figure 16 it can be seen that after one hour, the internal temperature of the health-preserving kettle of this embodiment can still be around 100°C, within the range of plus or minus 5°C, while the temperature inside the health-preserving kettle in the related art will drop to between 85°C and 90°C, with a large temperature difference. Therefore, the health-preserving kettle of this embodiment can better maintain the boiling state and keep a high temperature.

[0077] Moreover, referring to Figure 17 , where the micro-pressure represents the health-preserving kettle with the micro-pressure valve 40 in this embodiment, and the normal pressure represents the health-preserving kettle in the related art. From Figure 17It can be seen that when cooking different ingredients, the health-preserving kettle of this embodiment can mostly better retain the nutritional components and has good cooking effects. Especially when cooking tremella soup and rock sugar Sydney, the retention effect of nutritional components is obvious, and it can retain 17% more lycium barbarum polysaccharide, 58% more jujube polysaccharide, and 26% more total flavonoids. Details are not listed here.

[0078] Regarding the specific structure of the micro-pressure valve 40, further, in some embodiments, such as Figures 5 to 10 As shown, the micro-pressure valve 40 includes a valve seat 410, a valve cover 440, and a first valve core 420. The first air inlet 411 is provided on the valve seat 410; the valve cover 440 covers the valve seat 410 and encloses a receiving cavity 417 with the valve seat 410, and the exhaust port 441 is provided on the valve cover 440. The first air inlet 411 can communicate with the exhaust port 441 through the receiving cavity 417; the first valve core 420 is movably arranged at the first air inlet 411 and closes the first air inlet 411. The first valve core 420 can open the first air inlet 411 when the air pressure in the kettle body 10 reaches the first set pressure.

[0079] In these embodiments, the micro-pressure valve 40 includes the valve cover 440 and the valve seat 410 as a whole. The first valve core 420 is arranged on the valve seat 410, which is convenient for the overall disassembly of the micro-pressure valve 40 and the cleaning of the valve cover 440 and the valve seat 410 at the same time. The exhaust port 441 is provided on the valve cover 440, which is convenient for direct communication with the outside. The first air inlet 411 is provided on the valve seat 410, which is also convenient for communication with the internal cavity of the kettle body 10.

[0080] In a specific embodiment, such as Figures 5 to 11 As shown, the bottom wall of the valve seat 410 has a hollow air inlet column 413 extending into the receiving cavity 417. The top opening of the air inlet column 413 is configured as the first air inlet 411. The bottom of the air inlet column 413 extends downward out of the kettle lid 20, and the bottom of the air inlet column 413 has a gas inlet 418 communicating with the internal cavity of the kettle body 10.

[0081] By providing the air inlet column 413 on the valve seat 410 and using the top opening of the air inlet column 413 as the first air inlet 411, compared with directly opening the first air inlet 411 on the bottom wall of the valve seat 410, it is convenient for the gas to gather inside the air inlet column 413 and then push the first valve core 420 to move, so that the first valve core 420 opens the first air inlet 411, which is beneficial to calculating the pressure required to push the first valve core 420 according to the cross-sectional area of the air inlet column 413 and is convenient for designing a micro-pressure valve 40 that meets the pressure relief requirements.

[0082] Figure 11The grid indicated by the mark S in the middle is not a physical structure, but represents the area of the first air inlet 411. When the pressure P in the kettle body 10 reaches a certain value, a force F is applied to the micro-pressure valve 40 to lift the micro-pressure valve 40 and release the pressure through the first air inlet 411. At this time, P=F / S≤4KPa can be designed to ensure that the air pressure in the kettle body 10 is not too high and the pressure is released and exhausted in time.

[0083] In a specific application, the gas inside the kettle body 10 enters the air inlet column 413 through the gas inlet 418, and then pushes open the first valve core 420, enters the accommodating cavity 417 through the first air inlet 411, and then is discharged to the outside from the exhaust port 441.

[0084] The gas inlet 418 may be directly formed by the bottom opening of the gas inlet column 413 , or may be formed by a notch at the bottom of the side wall of the gas inlet column 413 .

[0085] like Figure 10 and Figure 12 As shown, the first valve core 420 includes a plug body 421 and a guide rod 422 located below the plug body 421. The plug body 421 is located above the air inlet column 413 and is used to open or close the first air inlet 411. A guide structure that matches the guide rod 422 is provided on the inner wall of the air inlet column 413, and the guide rod 422 can move up and down along the guide structure. The first valve core 420 has a simple structure and is easy to process. Moreover, the guide rod 422 is extended into the interior of the air inlet column 413 to match the guide structure, which can ensure that the first valve core 420 moves on the set path, thereby ensuring that the first valve core 420 can accurately open and close the first air inlet 411.

[0086] like Figure 10 and Figure 11 As shown, a support rib 414 is provided on the inner wall of the air intake column 413, and a mounting opening 415 is provided on the support rib 414. The mounting opening 415 is constructed as a guide structure, and a guide rod 422 movably extends into the mounting opening 415. A limiting protrusion 423 is provided on the portion of the guide rod 422 located below the mounting opening 415, and the limiting protrusion 423 is used to cooperate with the support rib 414 on the periphery of the mounting opening 415 to prevent the guide rod 422 from detaching from the mounting opening 415.

[0087] Here, the guide rod 422 is inserted into the installation opening 415 and moves up and down along the installation opening 415, which has a good guiding effect. In addition, the portion of the guide rod 422 located below the installation opening 415 has a limiting protrusion 423, and the limiting protrusion 423 is used to limit the guide rod 422 from being separated from the installation opening 415, so as to ensure that the first valve core 420 can be reset and block the first air inlet 411 under the action of its own gravity, thereby preventing the micro-pressure valve 40 from failing.

[0088] Of course, the guiding structure is not limited to the installation port 415 and can also be other structures. For example, the guiding structure can also be a guiding groove provided on the inner wall of the air inlet column 413, so that a part of the guiding rod 422 is inserted into the guiding groove and moves up and down along the guiding groove.

[0089] In addition, the first valve core 420 may not have the plug body 421 and the guiding rod 422. For example, if the first valve core 420 only includes a spherical valve core, at this time, the top of the air inlet column 413 can be made trumpet-shaped, so that after the first valve core 420 is lifted by air pressure, it can also reset under its own gravity to re-block the first air inlet 411.

[0090] In addition, as Figure 10 shown, the top wall of the valve cover 440 can be provided with a hollow exhaust column 442 protruding downward. The top opening of the exhaust column 442 is configured as an exhaust port 441. The exhaust column 442 is located on one side of the air inlet column 413 in the horizontal direction, and the bottom opening of the exhaust column 442 is lower than the top opening of the air inlet column 413.

[0091] In this way, after the steam enters the air inlet column 413, it will enter the accommodation cavity 417, and then enter the exhaust column 442 from the bottom opening of the lower exhaust column 442, and then be discharged from the exhaust port 441. Here, the exhaust column 442 is added, and the bottom opening of the exhaust column 442 is lower than the top opening of the air inlet column 413, which can increase the exhaust path and slow down the steam discharge speed, thereby improving safety. It can avoid the safety hazard caused by the steam directly rushing out of the exhaust port 441 upward after entering the accommodation cavity 417 from the first air inlet 411 under high pressure.

[0092] To ensure the safe exhaust of the micro-pressure valve 40, further, in some embodiments, as Figure 6 、 Figure 8 and Figure 10 shown, the valve seat 410 is also provided with a second air inlet 412 that can communicate with the accommodation cavity 417. The micro-pressure valve 40 further includes: a second valve core 430, the second valve core 430 is arranged at the second air inlet 412, and the second valve core 430 can open the second air inlet 412 when the air pressure in the kettle body 10 reaches a second set pressure, so that the gas in the kettle body 10 is communicated with the outside through the second air inlet 412 and the exhaust port 441, and the second set pressure is greater than the first set pressure.

[0093] In these embodiments, the micro-pressure valve 40 has a second valve core 430 in addition to the first valve core 420. If the first valve core 420 is damaged and cannot open the first air inlet 411 in time for exhaust, the second valve core 430 and the second air inlet 412 can play an insurance role and improve the safety of using the health kettle.

[0094] In a specific embodiment, as Figure 6 、 Figure 8and Figure 10 As shown in Figure 10 , the second valve core 430 is an elastic sealing gasket, which is arranged below the second air inlet 412 and blocks the second air inlet 412. Among them, the elastic sealing gasket can deform when the air pressure in the kettle body 10 reaches the second set pressure, so as to form a gap for gas to pass through between the elastic sealing gasket and the second air inlet 412. The elastic sealing gasket can also allow the liquid in the accommodating cavity 417 to flow back into the kettle body 10 through the second air inlet 412 when the air pressure in the kettle body 10 is lower than the first set pressure. The elastic sealing gasket can also seal the second air inlet 412 when the air pressure in the kettle body 10 is greater than the first set pressure and less than the second set pressure.

[0095] In this embodiment, the second valve core 430 is designed as an elastic sealing gasket, which has a simple structure and is convenient for processing. Moreover, when the air pressure in the kettle body 10 is lower than the first set pressure, a gap for liquid reflux is left between the elastic sealing gasket and the second air inlet 412. At this time, the second valve core 430 can be used as a reflux valve, and the second air inlet 412 can be used as a reflux port, which is convenient for the steam liquefied in the micro-pressure valve 40 to flow back into the kettle body 10 through the second air inlet 412. Moreover, the elastic sealing gasket can also seal the second air inlet 412 when the air pressure in the kettle body 10 is greater than the first set pressure and less than the second set pressure, which is convenient for the steam in the kettle body 10 to be exhausted through the micro-pressure valve 40 preferentially.

[0096] It should be noted that when the air pressure in the kettle body 10 is lower than the first set pressure, the health kettle can be in the state before heating or in the state after exhausting. In the initial heating stage, the temperature in the health kettle gradually rises and the pressure increases. Although there is a gap for liquid reflux between the elastic sealing gasket and the second air inlet 412 at this time, the gap is small. Even if the steam enters this gap, it is not easy to be discharged from the exhaust port 441, and it is very easy to be liquefied in the valve seat 410 and then directly flow back into the kettle body 10 through the second air inlet 412. Moreover, the speed of the steam leakage in the kettle body 10 through this gap is much lower than the speed of the air pressure increase in the kettle body 10, so it can be ignored, making the inside of the kettle body 10 still in a high-temperature and airtight environment during the heating process of the health kettle.

[0097] As an example, as Figure 10 shown, the elastic sealing gasket includes a gasket body and a connecting rod extending vertically upward on the upper surface of the gasket body, and the connecting rod is clamped on the bottom wall of the valve seat 410.

[0098] Of course, the second valve core 430 may not be an elastic sealing gasket. For example, the second valve core 430 is spherical and blocks the second air inlet 412 inside the accommodating cavity 417.

[0099] Of course, in other embodiments, the valve seat 410 may not have the second valve core 430. Instead, a return port and a return valve may be directly provided on the valve seat 410, and the return valve is used to open and close the return port. This facilitates the liquid generated after the steam in the valve seat 410 is liquefied to flow back into the interior of the kettle body 10 through the return port, avoiding water accumulation in the valve seat 410.

[0100] Further, in some embodiments, the first set pressure is less than or equal to 4 Kpa. This enables the air pressure inside the kettle body 10 to be exhausted through the micro-pressure valve 40 before exceeding 4 Kpa, avoiding potential safety hazards caused by excessive air pressure inside the kettle body 10.

[0101] Further, when the micro-pressure valve 40 includes both the first valve core 420 and the second valve core 430, the first set pressure can be greater than or equal to 1 Kpa and less than or equal to 2 Kpa, and the second set pressure is less than or equal to 4 Kpa. This allows the air pressure inside the kettle body 10 to be exhausted when it is between 1 Kpa and 2 Kpa, ensuring a micro-pressure state inside the kettle body 10 before exhausting, with good cooking effects, and moreover, it can avoid excessive air pressure inside the kettle body 10. Additionally, if the micro-pressure valve 40 is damaged, the air pressure inside the kettle body 10 can be exhausted through the second air inlet 412 of the micro-pressure valve 40 before exceeding 4 Kpa, avoiding potential safety hazards caused by excessive air pressure inside the kettle body 10.

[0102] In specific applications, the first set pressure can be 1.4 Kpa or 1.5 Kpa or 1.8 Kpa. The second set pressure can be 2.5 Kpa or 3 Kpa or 3.5 Kpa.

[0103] Regarding the detachable manner of the micro-pressure valve 40, further, in some embodiments, as Figures 6 to 8 shown, an installation groove 210 is provided at the top of the kettle lid 20. The bottom wall of the installation groove 210 has a through hole 211. The micro-pressure valve 40 is detachably arranged in the installation groove 210 and is communicated with the internal cavity of the kettle body 10 through the through hole 211. The health kettle further includes a micro-pressure valve sealing ring 50. The micro-pressure valve sealing ring 50 is circumferentially distributed around the micro-pressure valve 40 and is used to seal the gap between the micro-pressure valve 40 and the kettle lid 20.

[0104] In these embodiments, an installation groove 210 is provided at the top of the kettle lid 20 to accommodate the micro-pressure valve 40, facilitating the quick disassembly and assembly of the micro-pressure valve 40 by aligning it with the position of the installation groove 210. The gap between the micro-pressure valve 40 and the kettle lid 20 is sealed by the micro-pressure valve sealing ring 50, preventing the gas inside the kettle body 10 from leaking through this gap, which is beneficial for forming a high-temperature sealed environment inside the kettle body 10.

[0105] In a specific embodiment, as Figure 6 and Figure 8As shown, the micro-pressure valve sealing ring 50 is an elastic member fixed in the installation groove 210. The micro-pressure valve 40 is detachably connected to the kettle lid 20 by plugging and unplugging connection with the micro-pressure valve sealing ring 50.

[0106] When installing the micro-pressure valve 40 in this way, directly insert the micro-pressure valve 40 into the installation groove 210 and at the same time extend it into the micro-pressure valve sealing ring 50, squeezing the micro-pressure valve sealing ring 50 between the micro-pressure valve 40 and the groove wall of the installation groove 210. On the one hand, the plugging and unplugging connection method is convenient for disassembly and assembly. On the other hand, the micro-pressure valve sealing ring 50 can be squeezed and deformed, so as to better seal the gap between the micro-pressure valve 40 and the groove wall of the installation groove 210.

[0107] In order to firmly install the micro-pressure valve sealing ring 50 in the installation groove 210, the outer periphery of the through hole 211 on the bottom wall of the installation groove 210 can have an upwardly protruding connecting rib 212. The micro-pressure valve sealing ring 50 includes a first ring main body 510 and a flanging structure 520 that bends outward and downward from the top end of the first ring main body 510. A slot is formed between the flanging structure 520 and the first ring main body 510. Insert the top of the connecting rib 212 into the slot, and place the first ring main body 510 on the side of the connecting rib 212 facing the through hole 211 to closely fit with the micro-pressure valve 40. In addition, the health care kettle further includes a fixing seat 60, and the fixing seat 60 is connected to the groove wall of the installation groove 210 to clamp the flanging structure 520 between the fixing seat 60 and the connecting rib 212. The micro-pressure valve sealing ring 50 is firmly connected, which can prevent the micro-pressure valve sealing ring 50 from falling off during the process of plugging and unplugging the micro-pressure valve 40, and losing its sealing effect.

[0108] Among them, the fixing seat 60 can surround the outer periphery of the micro-pressure valve 40 and is connected to the groove wall of the installation groove 210 through fasteners. In addition, a circle of ribs can be further provided on the outer periphery of the connecting rib 212 on the bottom wall of the installation groove 210, and a groove is formed between this circle of ribs and the connecting rib 212, so that the flanging structure 520 is clamped in the groove, further improving the installation stability of the micro-pressure valve sealing ring 50.

[0109] Of course, in other embodiments, the micro-pressure valve sealing ring 50 can also be fixed on the micro-pressure valve 40, and is loaded into the installation groove 210 together with the micro-pressure valve 40, and the micro-pressure valve sealing ring 50 is closely attached to the groove wall of the installation groove 210.

[0110] In addition, the micro-pressure valve 40 can also be rotationally snap-fitted with the installation groove 210, or the micro-pressure valve 40 is connected to the installation groove 210 through a buckle 416, and is not limited to the plugging and unplugging connection of the above interference method.

[0111] To facilitate the disassembly of the micro-pressure valve 40, further, in some embodiments, such as Figure 1 、 Figure 3 、 Figure 6 and8 As shown, the top of the micro-pressure valve 40 protrudes outward from the kettle lid 20. It is convenient for users to hold the protruding part of the micro-pressure valve 40 to disassemble the micro-pressure valve 40.

[0112] Furthermore, as Figure 1 、 Figure 6 and Figure 8 shown, the top edge of the micro-pressure valve 40 has a rib 443 extending laterally outward, and the rib 443 is higher than the kettle lid 20. It is convenient for users to hold the rib 443 to disassemble the micro-pressure valve 40.

[0113] Of course, in other embodiments, the micro-pressure valve 40 can also be completely embedded in the installation groove 210. At this time, to facilitate the disassembly of the micro-pressure valve 40, the top of the micro-pressure valve 40 can be provided with a handle, or a part of the kettle lid 20 can be recessed, and the recess is communicated with the installation groove 210, so as to facilitate the user to reach into the recess to pull out the micro-pressure valve 40.

[0114] To facilitate the cleaning of the micro-pressure valve 40, further, in some embodiments, the valve cover 440 and the valve seat 410 can also be detachably connected. In this way, the valve cover 440 can be opened to clean the inside of the micro-pressure valve 40 and clean the valve cover 440 and the valve seat 410 separately, and the micro-pressure valve 40 can be cleaned more thoroughly.

[0115] As an example, as Figures 9 to 11 shown, the valve cover 440 and the valve seat 410 are rotationally snap-connected. The top of the outer side wall of the valve seat 410 has an L-shaped buckle 416, and the inner surface of the side wall of the valve cover 440 has a buckling portion that cooperates with the L-shaped buckle 416. The top of the valve seat 410 is inserted into the valve cover 440, and then rotated by a certain angle so that the laterally extending part of the L-shaped buckle 416 is in limit cooperation with the buckling portion.

[0116] As an example, the valve cover 440 and the valve seat 410 are connected together in a plug-and-play manner.

[0117] Furthermore, in some embodiments, the health kettle further includes: as Figures 2 to 8 shown, a pressure relief valve 70 is provided on the top of the kettle lid 20. The pressure relief valve 70 can be opened when the air pressure in the kettle body 10 reaches the third set pressure, so that the gas in the kettle body 10 is communicated with the outside through the pressure relief valve 70, and the third set pressure is greater than the first set pressure. Then, when the micro-pressure valve 40 is damaged, the pressure relief valve 70 can be used for pressure relief protection to play an insurance role and avoid excessive air pressure inside the kettle body 10 exceeding the third set pressure and causing potential safety hazards.

[0118] Furthermore, when the micro-pressure valve 40 further includes a second valve core 430, the third set pressure can be made greater than the second set pressure.

[0119] Regarding the specific structure of the kettle lid sealing ring 30, further, in some embodiments, asFigures 13 to 15 As shown in the figure, the kettle lid sealing ring 30 includes a second ring main body 310 and at least one sealing rib 320 that is circumferentially distributed outside the second ring main body 310. The outer periphery of the kettle lid 20 has a card slot 220. The second ring main body 310 is clamped in the card slot 220, and at least one sealing rib 320 is in close fit with the inner wall of the kettle body 10.

[0120] In these embodiments, the kettle lid sealing ring 30 is in close fit with the inner wall of the kettle body 10 through at least one sealing rib 320. Since the sealing rib 320 has a large deformation space, it can fit more closely to the inner wall of the kettle body 10, and the sealing effect is good. Especially when the number of sealing ribs 320 is multiple, multiple seals can be achieved. Moreover, by clamping the second ring main body 310 in the card slot 220, the kettle lid sealing ring 30 can be prevented from moving up and down and disengaging from the kettle lid 20.

[0121] In specific applications, the second ring main body 310 and the card slot 220 are in interference fit, and the kettle lid sealing ring 30 is firmly connected.

[0122] As an example, as Figure 13 shown, the sealing rib 320 extends obliquely upward and outward from the outer side wall of the second ring main body 310. Then, during the process of closing the kettle lid 20, as the kettle lid 20 moves downward, the sealing rib 320 will be squeezed by the inner wall of the kettle body 10 and move closer to the direction where the second ring main body 310 is located until the kettle lid 20 is fully closed. The sealing rib 320 is in full fit with the inner wall of the kettle body 10, and the sealing effect is good. Moreover, the obliquely arranged sealing rib 320 is not likely to get stuck with the inner wall of the kettle body 10, which is beneficial to the full closing of the kettle lid 20.

[0123] As an example, as Figure 14 and Figure 15 shown, the sealing rib 320 extends horizontally outward from the outer side wall of the second ring main body 310. Then, during the process of closing the kettle lid 20, as the kettle lid 20 moves downward, the sealing rib 320 will be squeezed and deformed by the inner wall of the kettle body 10 until the kettle lid 20 is fully closed. The sealing rib 320 is in full fit with the inner wall of the kettle body 10, and the sealing effect is good.

[0124] The following details the health care kettle of an embodiment of the present application.

[0125] The health care kettle includes a base, a kettle body 10, and a kettle lid 20.

[0126] A micro-pressure valve 40, a fixing base 60, a micro-pressure valve sealing ring 50, a handle 80, a pressure relief valve 70 and a kettle lid sealing ring 30 are arranged on the kettle lid 20. The handle 80 is fixedly installed on the kettle lid 20. The micro-pressure valve sealing ring 50 is placed in the installation groove 210 of the kettle lid 20, and the fixing base 60 is fixed in the installation groove 210 with screws, so that the micro-pressure valve sealing ring 50 is clamped between the fixing base 60 and the groove wall of the installation groove 210 to realize the fixation of the micro-pressure valve sealing ring 50. The micro-pressure valve 40 is snap-fitted on the kettle lid 20, has an interference fit with the micro-pressure valve sealing ring 50, and the two are detachable. The pressure relief valve 70 is snap-fitted at the corresponding position of the kettle lid 20. The kettle lid sealing ring 30 is snap-fitted in the corresponding card slot 220 of the kettle lid 20.

[0127] The micro-pressure valve 40 includes a valve cover 440, a first valve core 420, a valve seat 410 and a second valve core 430. The first valve core 420 is snap-fitted in the corresponding installation opening 415 of the valve seat 410 and can move up and down. The valve seat 410 is snap-fitted at the corresponding position of the valve cover 440. The second valve core 430 is snap-fitted at the corresponding position of the valve seat 410. The kettle lid sealing ring 30, the micro-pressure valve sealing ring 50, the pressure relief valve 70 and the second valve core 430 can all be made of soft materials, such as all being silicone parts.

[0128] Although the embodiments of the present invention have been described in detail above, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the present invention. It should be understood that in the view of those skilled in the art, these modifications and variations will still fall within the spirit and scope of the embodiments of the present invention defined by the claims.

Claims

1. A health care kettle, characterized in that, The health care kettle includes: A kettle body (10), the top of the kettle body (10) having an opening; A kettle lid (20), covering the opening; A kettle lid sealing ring (30), sleeved on the outer periphery of the kettle lid (20) for sealing the gap between the kettle lid (20) and the kettle body (10); A micro-pressure valve (40), detachably arranged on the kettle lid (20), the micro-pressure valve (40) having a first air inlet (411) and an exhaust port (441), the first air inlet (411) communicating with the internal cavity of the kettle body (10), the exhaust port (441) communicating with the outside, the micro-pressure valve (40) being able to open when the air pressure in the kettle body (10) reaches a first set pressure so that the first air inlet (411) and the exhaust port (441) communicate.

2. The health care pot according to claim 1, wherein The micro-pressure valve (40) includes: A valve seat (410), the first air inlet (411) being arranged on the valve seat (410); A valve cover (440), covering the valve seat (410) and enclosing a receiving cavity (417) with the valve seat (410), the exhaust port (441) being arranged on the valve cover (440), the first air inlet (411) being able to communicate with the exhaust port (441) through the receiving cavity (417); A first valve core (420), movably arranged at the first air inlet (411) and closing the first air inlet (411), the first valve core (420) being able to open the first air inlet (411) when the air pressure in the kettle body (10) reaches a first set pressure.

3. The health-preserving kettle according to claim 2, wherein The bottom wall of the valve seat (410) has a hollow air inlet column (413) extending into the interior of the receiving cavity (417), the top opening of the air inlet column (413) being configured as the first air inlet (411), the bottom of the air inlet column (413) extending downward out of the kettle lid (20), the bottom of the air inlet column (413) having a gas inlet (418) communicating with the internal cavity of the kettle body (10); The first valve core (420) includes a plug body (421) and a guide rod (422) located below the plug body (421), the plug body (421) being located above the air inlet column (413) for opening or closing the first air inlet (411), a guiding structure being arranged on the inner wall of the air inlet column (413) for cooperating with the guide rod (422), the guide rod (422) being able to move up and down along the guiding structure.

4. The health-preserving kettle according to claim 3, characterized in that On the inner wall of the intake column (413), support ribs (414) are provided. An installation opening (415) is formed on the support rib (414). The installation opening (415) is configured as the guiding structure. The guiding rod (422) extends into the installation opening (415) movably. A limiting protrusion (423) is provided on the portion of the guiding rod (422) below the installation opening (415). The limiting protrusion (423) is used for limiting cooperation with the support rib (414) on the outer periphery of the installation opening (415) to prevent the guiding rod (422) from detaching from the installation opening (415); and / or On the top wall of the valve cover (440), a hollow exhaust column (442) protrudes downward. The top opening of the exhaust column (442) forms the exhaust port (441). The exhaust column (442) is located on one side of the intake column (413) in the horizontal direction, and the bottom opening of the exhaust column (442) is lower than the top opening of the intake column (413).

5. The health care kettle according to claim 2, characterized in that, On the bottom wall of the accommodation cavity (417), a second intake port (412) is further provided. The micro-pressure valve (40) further includes: A second valve core (430). The second valve core (430) is arranged at the second intake port (412). The second valve core (430) can open the second intake port (412) when the air pressure in the kettle body (10) reaches a second set pressure, so that the inside of the kettle body (10) is communicated with the accommodation cavity (417). The second set pressure is greater than the first set pressure.

6. The health care kettle according to claim 5, characterized in that, The second valve core (430) is an elastic sealing gasket. The elastic sealing gasket is arranged below the second intake port (412) and blocks the second intake port (412); Wherein, the elastic sealing gasket can deform when the air pressure in the kettle body (10) reaches the second set pressure, so as to form a gap for gas to pass through between the elastic sealing gasket and the second intake port (412); The elastic sealing gasket can also allow the liquid in the accommodation cavity (417) to flow back into the kettle body (10) through the second intake port (412) when the air pressure in the kettle body (10) is lower than the first set pressure; The elastic sealing gasket can also seal the second intake port (412) when the air pressure in the kettle body (10) is greater than the first set pressure and less than the second set pressure.

7. The health care kettle according to any one of claims 1 to 6, characterized in that On the top of the kettle lid (20), an installation groove (210) is provided. The bottom wall of the installation groove (210) has a through hole (211). The micro-pressure valve (40) is detachably arranged in the installation groove (210) and is communicated with the inner cavity of the kettle body (10) through the through hole (211); The health kettle further includes a micro-pressure valve sealing ring (50). The micro-pressure valve sealing ring (50) is distributed circumferentially around the micro-pressure valve (40) and is used for sealing the gap between the micro-pressure valve (40) and the kettle lid (20).

8. The health care kettle according to claim 7, characterized in that, The micro-pressure valve sealing ring (50) is an elastic member and is fixed in the installation groove (210). The micro-pressure valve (40) is detachably connected to the kettle lid (20) by being inserted and pulled out from the micro-pressure valve sealing ring (50).

9. The health care kettle according to claim 8, characterized in that, On the bottom wall of the installation groove (210), there is an upwardly protruding connecting rib (212) on the outer periphery of the through hole (211). The micro-pressure valve sealing ring (50) includes a first ring main body (510) and a flanging structure (520) that bends outward and downward from the top end of the first ring main body (510). A slot is formed between the flanging structure (520) and the first ring main body (510). The top of the connecting rib (212) is inserted into the slot, and the first ring main body (510) is located on the side of the connecting rib (212) facing the through hole (211) for tightly fitting with the micro-pressure valve (40). The health kettle further includes a fixing seat (60). The fixing seat (60) is connected to the wall of the installation groove (210) to clamp the flanging structure (520) between the fixing seat (60) and the connecting rib (212).

10. The health care kettle according to any one of claims 1 to 6, characterized in that The top of the micro-pressure valve (40) protrudes outward from the kettle lid (20); and / or The top edge of the micro-pressure valve (40) has a convex rib (443) that extends laterally outward, and the convex rib (443) is higher than the kettle lid (20).

11. The health-preserving kettle according to any one of claims 2 to 6, characterized in that, The valve cover (440) is detachably connected to the valve seat (410).

12. The health-preserving kettle according to any one of claims 1 to 6, characterized in that, The first set pressure is less than or equal to 4 KPa; and / or The health kettle further includes a pressure relief valve (70). The pressure relief valve (70) is arranged on the top of the kettle lid (20). The pressure relief valve (70) can be opened when the air pressure in the kettle body (10) reaches a third set pressure, so that the gas in the kettle body (10) communicates with the outside through the pressure relief valve (70). The third set pressure is greater than the first set pressure.

13. The health care kettle according to any one of claims 1 to 6, characterized in that, The kettle lid sealing ring (30) includes a second ring main body (310) and at least one sealing rib (320) that is circumferentially distributed on the outside of the second ring main body (310). The outer periphery of the kettle lid (20) has a clamping groove (220). The second ring main body (310) is clamped in the clamping groove (220), and at least one sealing rib (320) is tightly attached to the inner wall of the kettle body (10). Wherein, the sealing rib (320) extends upward and outward from the outer side wall of the second ring main body (310), or the sealing rib (320) extends laterally outward from the outer side wall of the second ring main body (310).

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