Multifunctional travel kettle
By designing large and small opening structures in the travel pot and integrating mechanical pressure relief valves and detection components, the single function and safety hazards of existing electric heating travel pots are solved, and multifunctional and efficient and safe heating effects are achieved .
Patent Information
- Application Number
- CN202420273806.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-04
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-02-04
AI Technical Summary
The existing electric heating travel kettle design is limited to a single function, heated water, and has safety risks. The breathable membrane is prone to clogging, which cannot meet the problems of diversified cooking needs and improving heating efficiency.
Design a multi-functional travel pot with large and small opening structures, integrating mechanical pressure relief valve components and detection components to ensure safe heating in a closed state, and improve the convenience and safety of use through quick disassembly and sealing structures. sex.
It realizes the versatility of boiling water, cooking noodles and making soup, improves heating efficiency and safety, the mechanical design of the pressure relief valve assembly avoids the risk of blockage, the detection components ensure safe start, and the quick disassembly structure and sealing structure are improved Easy to use and safe.
Smart Images

Figure CN222149323U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of travel kettles, in particular to a multifunctional travel kettle. Background Art
[0002] Traditional travel kettle designs focus on heat preservation, allowing users to carry hot water or other drinks to keep them warm when traveling. These kettles are usually made of stainless steel or other heat-insulating materials, and contain a vacuum layer inside, which can effectively isolate the outside temperature and keep the temperature of the liquid inside from being affected by the external environment.
[0003] However, with the accelerated pace of life and the increasing demand for travel, travel kettles with only insulation function can no longer meet the diverse needs of modern consumers. Therefore, travel kettles with electric heating function have begun to appear on the market. These electric heating travel kettles have built-in electric heating elements, which can heat water by connecting to a power source and provide hot water for users, thus expanding the functions of travel kettles.
[0004] Nevertheless, existing electric heating travel kettles still have some limitations in design. For example, they are usually equipped with only one spout, which means that the user experience is limited and can only be used to heat water, and cannot perform other cooking activities such as boiling noodles.
[0005] In addition, most electric travel kettles require the lid to be opened when heating to prevent safety hazards caused by excessive internal pressure, which will undoubtedly reduce the heating efficiency because the heat will escape as the steam is released.
[0006] To solve this problem, some travel kettles are designed with lids with pressure relief functions. The pressure relief hole on the lid is built with a breathable membrane. This design allows the internal pressure to be released slowly while keeping the lid closed during the heating process, thereby improving heating efficiency. However, this design still has problems. The breathable membrane is easily blocked by scale, soup, and foam, and may fail after long-term use. This not only affects the normal use of the travel kettle, but may also bring safety risks.
[0007] Therefore, it is necessary to further improve and perfect the prior art to overcome these deficiencies, and the present invention is made based on this situation. Utility Model Content
[0008] The utility model aims to overcome the deficiencies of the prior art and provide a travel kettle with a simple structure and multiple uses.
[0009] The utility model is realized by the following technical solutions:
[0010] In order to solve the above technical problems, the utility model provides a multifunctional travel kettle, including a kettle body, an electric heating component is provided at the lower part of the kettle body, a large opening is provided at the upper end of the kettle body, a large cover is detachably connected to the large opening, a small opening is provided at the top of the large cover, a small cover is detachably connected to the small opening, the large opening is open, and the small opening is narrow; a pressure relief valve assembly is provided on the small cover.
[0011] In order to further solve the technical problem to be solved by the utility model, the utility model provides a multifunctional travel kettle, wherein the pressure relief valve assembly includes a first pressure relief valve, the first pressure relief valve includes a valve seat plate arranged on a small cover, the valve seat plate is provided with a first pressure relief hole connecting the inside and the outside thereof, the first pressure relief hole is provided with a first valve core which can be opened outward in one direction, and the outer end of the first valve core is provided with a first return spring which presses the first valve core toward the first pressure relief hole.
[0012] In order to further solve the technical problem to be solved by the utility model, the utility model provides a multifunctional travel kettle, wherein the pressure relief valve assembly also includes a second pressure relief valve, the second pressure relief valve includes a second pressure relief hole arranged on the valve seat plate, the second pressure relief hole is provided with a second valve core that can be opened outward in one direction, the outer end of the second valve core is provided with a second return spring that presses the second valve core toward the second pressure relief hole, the second return spring and the first return spring have different elastic forces; the first pressure relief valve and the second pressure relief valve play a role of dual protection.
[0013] In order to further solve the technical problem to be solved by the utility model, in a multifunctional travel kettle provided by the utility model, an inner plate and an outer plate are respectively provided on the inner and outer sides of the valve seat plate to form a three-layer structure on the top of the small cover, and a first filter hole for connecting the inner cavity of the kettle body with the first pressure relief hole and the second pressure relief hole is provided on the inner plate, and a second filter hole connecting the first pressure relief hole and the outside, and the second pressure relief hole and the outside is provided on the outer plate.
[0014] In order to further solve the technical problem to be solved by the utility model, in a multifunctional travel kettle provided by the utility model, the first filter hole and the first pressure relief hole and the second pressure relief hole are staggered with each other in the horizontal direction, and the second filter hole and the first pressure relief hole and the second pressure relief hole are also staggered with each other in the horizontal direction.
[0015] In order to further solve the technical problem to be solved by the utility model, in a multifunctional travel kettle provided by the utility model, the electric heating component is connected to a control component, the control component is provided with a water boiling function button and a noodle cooking and soup cooking function button, the kettle body is provided with a detection element for detecting whether the large cover is installed, the detection element is connected to the control component, and the detection element can transmit a signal to the control component when the large cover is installed on the kettle body to prevent the noodle cooking and soup cooking function from being started.
[0016] In order to further solve the technical problem to be solved by the utility model, in a multifunctional travel kettle provided by the utility model, the detection element is a contact switch or a Hall switch arranged at the contact position between the large cover and the kettle body.
[0017] In order to further solve the technical problem to be solved by the utility model, in a multifunctional travel kettle provided by the utility model, a quick-release structure is provided between the large cover and the kettle body.
[0018] In order to further solve the technical problem to be solved by the utility model, the utility model provides a multifunctional travel kettle, in which the quick-release structure includes a protrusion arranged on the inner wall of the large cover, and a card groove arranged on the outer wall of the kettle body and capable of cooperating with the corresponding protrusion, the card groove is arranged along the circumferential direction of the outer wall of the kettle body, and a card entrance is provided at one end of the circumferential direction of the card groove.
[0019] In order to further solve the technical problem to be solved by the utility model, in a multifunctional travel kettle provided by the utility model, a sealing structure is arranged between the large cover and the large opening, and between the small cover and the small opening.
[0020] Compared with the prior art, the utility model has the following advantages:
[0021] 1. The utility model can not only boil water, but also cook noodles and make soup, and has multifunctionality. Specifically, a large opening is designed on the upper end of the kettle body, which is opened and closed by a large cover. This design allows users to easily add water or other ingredients to the kettle, and it is also more convenient to clean the inside of the kettle. The open design of the large opening ensures that even larger foods can be easily placed in the kettle, and during the cooking process, users can directly observe the cooking status of the food, which greatly improves the practicality and flexibility of the travel kettle. A small opening is also designed on the top of the large cover, which is opened and closed by a small cover. The convergent mouth design of the small opening takes into account that users may not need to use a large opening in some occasions, but need a smaller water outlet to control the water flow and prevent scalding or overflow, while also being able to heat quickly.
[0022] 2. The utility model cleverly integrates a pressure relief valve assembly on the small cover to ensure that water can be safely heated in a closed state. It can be achieved without removing the small cover to boil water, solving the problem of having to open the cover for heating. The design of the pressure relief valve allows automatic release when the pressure exceeds a certain threshold, avoiding safety hazards caused by excessive internal pressure. The pressure relief valve assembly is a mechanical pressure relief valve. Compared with pressure relief structures such as breathable membranes, the pressure relief valve assembly will not be blocked by accumulated scale, food residues, and foam generated during boiling. It has the characteristics of high reliability, pollution resistance, long service life, and easy maintenance.
[0023] 3. The kettle body of the utility model is provided with a detection element, which is used to sense whether the large cover is installed on the kettle body. When it is detected that the large cover has not been removed, the detection element will send a signal to the control component, and the control component will prevent the activation of the noodle cooking and soup cooking functions after receiving the signal. Such a design is based on the fact that a large amount of steam and the expansion of the food volume are usually generated when cooking food, especially when heating noodles or soups. In order to avoid the risks caused by excessive internal pressure, the user is required to remove the large cover when using the noodle cooking and soup cooking functions to allow the steam to be discharged freely and prevent the food contents from overflowing from the kettle body. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings, wherein:
[0025] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0026] Figure 2 It is an explosion schematic diagram of the utility model;
[0027] Figure 3 It is a three-dimensional cross-sectional schematic diagram of the small cover. DETAILED DESCRIPTION
[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0029] like Figures 1 to 3 The multifunctional travel kettle shown comprises a kettle body 1, which is the main part of the travel kettle. An electric heating component 2 is installed at the bottom of the kettle body. The component can heat the water in the kettle body through power supply and is very suitable for use in an environment without an open fire source.
[0030] A large opening 11 is designed at the upper end of the kettle body 1. This design allows the user to easily add water or other ingredients into the kettle, and is also more convenient when cleaning the inside of the kettle.
[0031] In addition, when the large cover 3 is completely removed, the large opening 11 is revealed, and the use function of the travel kettle is greatly expanded. The user can not only heat water, but also use the heating capacity of the travel kettle to cook noodles or other simple foods. The open design of the large opening 11 ensures that even large-volume food can be easily put into the kettle, and during the cooking process, the user can directly observe the cooking status of the food, which greatly improves the practicality and flexibility of the travel kettle.
[0032] A small opening 31 is also designed on the top of the large cover 3, which can be opened or closed by removing the connected small cover 4. When the small cover 4 is removed, the small opening 31 is in an open state, and the travel kettle can be used to drink water or pour water like an ordinary kettle. The narrow opening 31 is designed to take into account that the user may not need to use the large opening 11 in some occasions, but need a smaller water outlet to control the water flow, prevent scalding or overflow, and also enable rapid heating.
[0033] The travel kettle can not only meet people's needs for hot water during travel, but also adapt to more cooking scenarios, reflecting a high degree of practicality and convenience.
[0034] More specifically, in order to improve the safety and heating efficiency of the travel kettle, the utility model cleverly integrates a pressure relief valve assembly on the small cover 4 to ensure that water can be safely heated in a closed state, and water can be boiled without removing the small cover 4, solving the problem of having to open the cover for heating. The design of the pressure relief valve allows automatic release when the pressure exceeds a certain threshold, avoiding safety hazards caused by excessive internal pressure.
[0035] Of course, the pressure relief valve assembly remains normally closed, and the travel kettle will not leak when it is tipped over.
[0036] More specifically, the pressure relief valve assembly includes a first pressure relief valve, which includes a valve seat plate 41 disposed on the small cover 4, and a first pressure relief hole 411 is disposed on the valve seat plate 41, which is connected to the inside and outside of the small cover 4, and this hole allows the internal steam pressure to communicate with the external environment. The cleverness of this design is that it can maintain the pressure balance between the inside and outside of the travel kettle, and at the same time, it will not cause excessive pressure due to long-term closure.
[0037] The first pressure relief hole 411 is provided with a first valve core 42 that can be opened outward in one direction. The valve core is normally closed to prevent water evaporation loss, and can also be automatically opened when the internal pressure rises to a certain level. Such a one-way design ensures that the pressure is released only when needed, which ensures both safety and heating efficiency.
[0038] In order to enable the first valve core 42 to quickly reset after the pressure is released, the design also includes a first reset spring 43. This spring is located at the outer end of the first valve core 42 and applies a predetermined force to it, making it move in the direction of the first pressure relief hole 411. The first valve core 42 will only open when the internal pressure exceeds the preset pressure of the spring. Once the internal pressure decreases, the spring force will drive the first valve core 42 to close the pressure relief hole again and return to a closed state to retain heat and moisture. This automatic reset function is an important safety feature in the design of the travel kettle, which ensures the continuity of the travel kettle during the heating process and the convenience of the user.
[0039] This mechanical pressure relief valve is ingeniously designed, taking into full account various situations that may be encountered in actual use, such as scale accumulation, food residues, and foam generated during boiling. Compared with pressure relief structures such as breathable membranes, mechanical pressure relief valves have significant advantages:
[0040] 1) Higher reliability: Mechanical pressure relief valves can ensure that they will not fail due to material aging or mechanical fatigue during long-term use. In addition, since valves are usually designed with larger channels and mechanical moving parts, the pressure relief valve can still work normally even in the presence of scale or food residue, reducing safety hazards caused by blockage.
[0041] 2) Excellent pollution resistance: Mechanical pressure relief valves are usually simple in structure and easy to disassemble and clean. Even when scale accumulates on the surface or is covered with viscous substances such as soup, it can be easily cleaned to maintain the normal operation of the valve. This is different from the breathable membrane, the microporous structure of which may be blocked by these substances, thus affecting its pressure relief performance.
[0042] 3) Longer service life: The durability of mechanical pressure relief valves allows them to maintain their original performance after repeated use. Conventional breathable membranes may wear, tear or change in pore size after continuous use, thus affecting their pressure relief effect. Mechanical valves, due to their sturdy structure, can withstand more cycles of use and therefore have a longer lifespan.
[0043] 4) Easy maintenance: Since the structure of the mechanical pressure relief valve is relatively simple, users can perform inspections and basic maintenance work by themselves in daily use, such as regular cleaning and checking the elasticity of the spring. This easy maintenance feature is more difficult for breathable membranes because their tiny structure is not easy for users to clean and maintain by themselves.
[0044] In summary, the mechanical pressure relief valve of the utility model is very suitable for kitchen electrical appliances such as travel kettles that require high reliability and long-term stable operation due to its reliability, pollution resistance, long service life and easy maintenance.
[0045] More specifically, in order to further improve the safety of the travel kettle and adapt to different heating requirements, the pressure relief valve assembly also includes a second pressure relief valve, which includes a second pressure relief hole 412 additionally provided on the valve seat plate 41. Similar to the first pressure relief hole 411, the second pressure relief hole 412 is used to provide an additional pressure release channel inside the travel kettle. This design can cope with emergency situations where the first pressure relief hole cannot release all the pressure in time under extreme conditions, thereby doubly protecting the safety of users.
[0046] The second pressure relief hole 412 is provided with a second valve core 44 that can be opened outward in one direction. The outer end of the second valve core 44 is provided with a second return spring 45 that presses the second valve core 44 toward the second pressure relief hole 412. The second return spring 45 and the first return spring 43 have different elastic forces. The working principle of this valve core is similar to that of the first valve core 42. Both open automatically when the internal pressure exceeds the threshold preset by the spring. However, since the elastic forces of the second return spring 45 and the first return spring 43 are different, this means that the starting pressure of the second pressure relief hole is set higher. This differentiated design ensures that under normal use conditions, the travel kettle mainly relies on the first pressure relief hole for pressure regulation, while the second pressure relief hole serves as an auxiliary and is only activated when the internal air pressure rises rapidly to a more dangerous level.
[0047] The first pressure relief valve and the second pressure relief valve play a dual role of protection. When the first pressure relief hole 411 cannot effectively cope with the internal pressure increase, the second pressure relief hole 412 will come into play. When the air pressure rises to the preset elastic threshold of the second return spring 45, the second valve core 44 will open, allowing more steam to be released quickly to reduce the internal pressure. This enhanced pressure relief capacity is determined through precise calculations and tests to ensure the stability and safety of the travel kettle under various heating conditions.
[0048] In addition, the design of the two pressure relief valves also takes into account the possible failure of the valve core or spring. Even if one of the pressure relief systems fails, the other can also play a safety role. In general, through such a redundant design, even in extreme or unexpected situations, the users of the travel kettle can be protected, making the product more reliable and significantly improving the user's confidence in the product.
[0049] Preferably, the first valve core 42 and the second valve core 44 are both made of silicone and are in the shape of a cone with a small bottom and a large top. Of course, the first pressure relief hole 411 and the second pressure relief hole 412 are both adaptively designed to be in the shape of a cone with a large bottom and a small top.
[0050] More specifically, the inner and outer sides of the valve seat plate 41 are respectively provided with an inner plate 46 and an outer plate 47, that is, the top of the small cover 4 has three layers, which are: the inner plate 46, the valve seat plate 41 and the outer plate 47 from the inside to the outside. Of course, there is a certain interval between the inner plate 46 and the valve seat plate 41, and between the valve seat plate 41 and the outer plate 47. Specifically, the superposition of the inner plate 46, the valve seat plate 41 and the outer plate 47 forms an efficient pressure relief system and has a filtering effect. The inner plate 46 is provided with a first filter hole 461 for connecting the inner cavity of the kettle body 1 and the first pressure relief hole 411 and the second pressure relief hole 412. The first filter hole 461 is first responsible for guiding the steam inside the kettle body 1 to the pressure relief hole. At the same time, these filter holes also play a preliminary filtering role, helping to block larger impurities, food particles and other substances that may cause the pressure relief hole to be blocked, so as to ensure that the pressure relief system is unobstructed.
[0051] On the valve seat plate 41, the design of the first pressure relief hole 411 and the second pressure relief hole 412 allows the excessive pressure from inside the kettle body to be released through the valve core (the first valve core 42 and the second valve core 44) that opens at a specified threshold, ensuring the safe operation of the travel kettle under different circumstances.
[0052] The outer plate 47 is provided with a second filter hole 471 connecting the first pressure relief hole 411 and the outside, and the second pressure relief hole 412 and the outside. The second filter hole 471 is responsible for the final step of steam filtering and discharge, which allows the steam released from the pressure relief hole to enter the environment, while reducing the temperature to a safe level to avoid scalding to the user during use.
[0053] It is particularly worth mentioning that the first filter hole 461 and the first pressure relief hole 411 and the second pressure relief hole 412 are designed to be staggered, and the second filter hole 471 and the first pressure relief hole 411 and the second pressure relief hole 412 are also designed to be staggered. This staggered layout in the horizontal direction ensures that the steam must flow through a tortuous path when it is discharged. This not only increases the flow time of the steam, allowing more heat to dissipate and effectively reducing the temperature of the steam, but also increases the contact area between the steam and the inner wall of the kettle, thereby further reducing the temperature of the steam released to the outside. In addition, the effect of this turbulence also helps to reduce the direct loss of heat inside the travel kettle and improve the energy efficiency of boiling water.
[0054] More specifically, in order to ensure the safety and convenience of the travel kettle when in use, the designer connects a control component to the electric heating component 2, and the control component is equipped with a variety of function buttons, including boiling water and cooking noodles and soup. This enhanced function provides users with more choices, making the travel kettle not only a water-boiling utensil, but also used to cook simple food.
[0055] However, the amount of heat and steam generated when cooking noodles or making soup is large, which can easily cause the pressure in the kettle to increase. If the large cover 3 of the travel kettle is in a closed state, it may cause a safety hazard. In order to solve this problem, a detection element 5 is provided on the kettle body 1, which is used to sense whether the large cover 3 is installed on the kettle body. When it is detected that the large cover 3 has not been removed, the detection element 5 will send a signal to the control component, and the control component will prevent the activation of the noodle cooking and soup cooking function after receiving this signal.
[0056] This design is based on the fact that a large amount of steam and food volume expansion are usually generated when cooking food, especially when heating noodles or soup. In order to avoid the risk of excessive internal pressure, the user is required to remove the large cover 3 when using the noodle cooking function to allow steam to be discharged freely and prevent the food content from overflowing from the pot.
[0057] If the user attempts to start the noodle or soup cooking function when the large cover 3 is closed, the detection element 5 will immediately detect the presence of the large cover 3 and prevent the start of the heating program through the control component. This is not only a safety warning system, but also a mechanism to educate users on the correct use of the travel kettle. Through this design, cooking in a closed state can be effectively prevented, thereby preventing possible dangerous situations from occurring and protecting users from scalding or other pressure-related risks.
[0058] Preferably, the detection element 5 is a contact switch or a Hall switch provided at the contact position between the large cover 3 and the kettle body 1. The contact switch is a simple mechanical switch, which closes and sends a signal to the control component when the large cover 3 is in close contact with the kettle body 1. The advantage of this switch is that it has a simple structure and high reliability, but it may wear out due to frequent physical contact.
[0059] The Hall switch is a contactless switch that operates by detecting changes in the magnetic field. When the large cover 3 is installed on the kettle body 1, if the large cover 3 contains magnetic materials or there is a magnet nearby, the Hall switch can sense the change in the magnetic field and convert this change into an electrical signal to transmit to the control component. The advantages of the Hall switch are low wear, sensitive response, and not easily affected by dust or moisture.
[0060] Whether it is a contact switch or a Hall switch, their function is to accurately transmit a signal to the control component when the large cover 3 is installed on the kettle body 1. After receiving the signal, the control component will immediately prohibit starting the noodle cooking function until the user removes the large cover 3.
[0061] In order to facilitate user operation, a quick-release structure is adopted between the large cover 3 and the kettle body 1. This design allows the user to quickly and conveniently install or remove the large cover 3.
[0062] The core of the quick-release structure is the protrusion 32 on the inner wall of the large cover 3 and the slot 12 on the outer wall of the kettle body 1. The slot 12 is arranged along the circumferential direction of the outer wall of the kettle body 1 and has a slot 121 at one end. The protrusion 32 cooperates with the slot 12 to fix the large cover 3 to the kettle body 1. The user only needs to align the protrusion 32 on the large cover 3 with the slot 121 of the slot 12, and with a slight turn, the protrusion 32 can slide into place along the slot 12, thereby firmly installing the large cover 3 on the kettle body 1. When the large cover 3 needs to be removed, the user can rotate the large cover 3 in the opposite direction to align the protrusion 32 with the slot 121 and detach it from the slot, thereby achieving quick removal.
[0063] This type of structure is more convenient than a threaded connection structure, which requires multiple turns of rotation, while this structure only requires a slight rotation.
[0064] In addition, this quick-release structure also complements the function of the detection element 5. When the user correctly installs the large cover 3, the detection element 5 can immediately sense and transmit a signal, ensuring that the control component can only start the noodle cooking function under safe conditions.
[0065] In order to ensure the sealing and safety during the cooking process as much as possible, sealing structures are configured between the large cover 3 and the large opening 11, and between the small cover 4 and the small opening 31. These sealing structures usually use sealing rings, such as silicone sealing rings, which can effectively prevent the leakage of hot water or steam due to their high temperature resistance, corrosion resistance, excellent elasticity and sealing performance, thereby improving safety and heat preservation.
[0066] Furthermore, considering the safety and portability of the user, the exterior of the kettle body 1 is wrapped by a shell 13. This shell 13 not only has a heat-insulating effect to protect the user from heat injuries, but also increases the firmness of the kettle body and provides anti-fall protection. The design of the heat-insulating layer allows the user to safely touch the travel kettle when it is working without worrying about being burned by high temperature.
[0067] A more preferred design is that a handle 131 is also installed on the housing 13, and the handle 131 makes the travel pot easier to carry. The handle 131 is usually designed to be ergonomic to fit various hand shapes, provide a comfortable grip and sufficient grip strength, and make it more convenient for users to move the travel pot, and the user will not feel heavy or unstable even when the pot is filled with hot water or hot food.
Claims
1. A multifunctional travel kettle, characterized in that: The invention comprises a kettle body (1), wherein an electric heating assembly (2) is arranged at the lower part of the kettle body (1), a large opening (11) is arranged at the upper end of the kettle body (1), a large cover (3) is detachably connected to the large opening (11), a small opening (31) is arranged at the top of the large cover (3), a small cover (4) is detachably connected to the small opening (31), the large opening (11) is open, and the small opening (31) is narrow; and a pressure relief valve assembly is arranged on the small cover (4).
2. The multifunctional travel kettle according to claim 1, characterized in that: The pressure relief valve assembly comprises a first pressure relief valve, the first pressure relief valve comprises a valve seat plate (41) arranged on the small cover (4), the valve seat plate (41) is provided with a first pressure relief hole (411) communicating with the inside and outside thereof, the first pressure relief hole (411) is provided with a first valve core (42) which can be opened outward in one direction, and the outer end of the first valve core (42) is provided with a first return spring (43) which presses the first valve core (42) toward the first pressure relief hole (411).
3. The multifunctional travel kettle according to claim 2, characterized in that: The pressure relief valve assembly also includes a second pressure relief valve, which includes a second pressure relief hole (412) provided on the valve seat plate (41), a second valve core (44) which can be opened outward in one direction is provided in the second pressure relief hole (412), and a second return spring (45) which presses the second valve core (44) toward the second pressure relief hole (412) is provided at the outer end of the second valve core (44), and the second return spring (45) and the first return spring (43) have different elastic forces; the first pressure relief valve and the second pressure relief valve play a role of dual protection.
4. The multifunctional travel kettle according to claim 3, characterized in that: The valve seat plate (41) is provided with an inner plate (46) and an outer plate (47) on both sides thereof, thereby forming a three-layer structure at the top of the small cover (4); the inner plate (46) is provided with a first filter hole (461) for connecting the inner cavity of the kettle body (1) with the first pressure relief hole (411) and the second pressure relief hole (412); the outer plate (47) is provided with a second filter hole (471) for connecting the first pressure relief hole (411) with the outside, and the second pressure relief hole (412) with the outside.
5. The multifunctional travel kettle according to claim 4, characterized in that: The first filter hole (461) and the first pressure relief hole (411) and the second pressure relief hole (412) are staggered in the horizontal direction, and the second filter hole (471) and the first pressure relief hole (411) and the second pressure relief hole (412) are also staggered in the horizontal direction.
6. The multifunctional travel kettle according to claim 1, characterized in that: The electric heating component (2) is connected to a control component, and the control component is provided with a water boiling function button and a noodle boiling soup cooking function button. The kettle body (1) is provided with a detection element (5) for detecting whether the large cover (3) is installed. The detection element (5) is connected to the control component, and the detection element (5) can transmit a signal to the control component to prevent the noodle boiling soup cooking function from being activated when the large cover (3) is installed on the kettle body (1).
7. The multifunctional travel kettle according to claim 6, characterized in that: The detection element (5) is a contact switch or a Hall switch arranged at the contact position between the large cover (3) and the kettle body (1).
8. The multifunctional travel kettle according to claim 1, characterized in that: A quick-release structure is provided between the large cover (3) and the kettle body (1).
9. The multifunctional travel kettle according to claim 8, characterized in that: The quick-release structure comprises a protrusion (32) provided on the inner wall of the large cover (3), and a clamping groove (12) provided on the outer wall of the kettle body (1) and capable of cooperating with the corresponding protrusion (32); the clamping groove (12) is arranged along the circumferential direction of the outer wall of the kettle body (1), and a clamping entrance (121) is provided at one end of the clamping groove (12) in the circumferential direction.
10. The multifunctional travel kettle according to claim 1, characterized in that: A sealing structure is arranged between the large cover (3) and the large opening (11), and between the small cover (4) and the small opening (31).
