Liquid heating machine with good sealing performance

Abstract

The utility model discloses a liquid heater with good sealing performance, which comprises a cover body and a main body, the cover body is rotatably connected with the top of the main body, the cover body comprises a mounting seat and a sealing ring, the main body is provided with a shell and an inner container, the mounting seat is provided with a steam discharge hole, and the steam discharge hole is respectively communicated with the inner container and the outside. The sealing ring comprises a mounting part, a connecting part and a sealing part, the connecting part is vertically connected with the mounting part and the sealing part, the bottom of the mounting seat is in interference fit with the mounting part, and the outer side wall of the sealing part abuts against the inner side wall of the inner container so that the sealing part can be used for sealing a gap between the inner container and the mounting seat. The sealing part is tightly attached to the inner side wall of the inner container, the gap between the inner container and the installation base is effectively filled, steam and liquid are prevented from leaking from the gap, a reliable sealing environment is formed, and the problem that a traditional liquid heating machine is poor in sealing effect is solved.

Description

Technical Field

[0001] This utility model relates to the field of liquid heating machine technology, specifically a liquid heating machine with good sealing performance. Background Technology

[0002] Humidifiers, rice cookers, and health-preserving kettles are widely used in people's daily lives. Traditional heating devices of this type share certain commonalities in their construction: the lid has a sealing ring, and the main body is equipped with an inner liner.

[0003] When using this type of device, the user needs to apply a large downward force to close the cover and the main body so that the bottom of the sealing ring can wrap around the top edge of the inner liner to achieve a seal inside the device, resulting in a poor user experience.

[0004] However, during the process of heating the liquid, the liquid water gradually vaporizes into steam, causing the internal pressure of the equipment to continuously increase. When the steam pressure reaches a certain level, it exerts an upward pushing force on the sealing ring. Under the continuous influence of this force, gaps gradually form between the sealing ring and the inner liner. Once these gaps appear, the steam that was originally confined inside the equipment will leak into the surrounding environment. Steam leakage not only reduces the internal pressure of the equipment, preventing the predetermined heating temperature from being reached and greatly affecting the heating effect and reducing the practicality of the equipment, but also causes unnecessary energy waste and increases operating costs. Utility Model Content

[0005] To address the aforementioned shortcomings, this invention proposes a liquid heater with excellent sealing performance. By tightly fitting the sealing part to the inner wall of the inner tank, it effectively fills the gap between the inner tank and the mounting base, preventing steam and liquid from leaking out of the gap and forming a reliable sealing environment. This solves the problems of poor sealing effect and poor user experience of traditional liquid heaters.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A liquid heater with good sealing performance includes a cover and a main body. The cover is rotatably connected to the top of the main body. The cover includes a mounting base and a sealing ring. The main body has a shell and an inner liner. The mounting base has a steam exhaust hole that communicates with the inner liner and the outside. The sealing ring includes a mounting part, a connecting part, and a sealing part. The connecting part vertically connects the mounting part and the sealing part. The bottom of the mounting base is interference-fitted with the mounting part. The inner liner is disposed inside the shell. The sealing part is rolled outward to form a semi-circular structure with the opening facing upward. The outer wall of the sealing part abuts against the inner wall of the inner liner. The sealing part is used to seal the gap between the inner liner and the mounting base.

[0008] The outer diameter of the end of the sealing part is larger than the inner diameter of the inner liner sidewall.

[0009] The mounting part, connecting part and sealing part are integrally formed, and the sealing ring is made of high temperature resistant material.

[0010] The bottom of the mounting base is provided with an outwardly protruding mounting ring, and the top of the mounting part is provided with an inwardly recessed mounting groove. The mounting ring and the mounting groove are arranged opposite to each other and are interference-fitted.

[0011] The inner wall of the mounting part is provided with a horizontally open insertion groove. The cover also includes a vent plate. The outer edge of the vent plate is located in the insertion groove. The vent plate is provided with a plurality of vertical vent holes. Steam passes through the vent holes and enters the mounting base.

[0012] A horizontal steam baffle is provided on the inner side of the connecting part. The steam baffle includes an arc edge and a straight edge. The arc edge coincides with the inner wall of the connecting part, and the straight edge connects the two ends of the arc edge.

[0013] The technical solution of this utility model can include the following beneficial effects:

[0014] 1. The mounting base moves the first end of the sealing ring downwards. At this time, the inner wall of the inner liner is constantly pressing against the end of the sealing part. Under the action of the dual forces, elastic deformation occurs, and the sealing part tightly fits the inner wall of the inner liner, effectively filling the gap between the inner liner and the mounting base, preventing steam and liquid from leaking from the gap, and forming a reliable sealing environment.

[0015] 2. The one-piece molded structure ensures that the sealing ring maintains good overall elasticity. When subjected to internal steam pressure, the entire sealing ring can undergo uniform elastic deformation, tightly fitting the mounting base and inner liner, better adapting to different working conditions and effectively preventing steam leakage. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of a liquid heater according to one embodiment of this utility model;

[0017] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram of a sealing ring according to one embodiment of the present invention;

[0019] Among them, 1. Cover; 11. Mounting base; 111. Mounting ring; 12. Ventilation plate; 2. Main body; 21. Shell; 22. Inner liner; 3. Sealing ring; 31. Mounting part; 311. Mounting groove; 312. Insertion groove; 32. Connecting part; 321. Steam baffle; 33. Sealing part. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] In the description of this utility model, it should be understood that the terms "length", "middle", "upper", "lower", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "assembly," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The following is combined Figures 1 to 3 This invention describes a liquid heater with good sealing performance according to an embodiment of the present invention.

[0025] A liquid heater with good sealing performance includes a cover 1 and a main body 2. The cover 1 is rotatably connected to the top of the main body 2. The cover 1 includes a mounting base 11 and a sealing ring 3. The main body 2 is provided with a shell 21 and an inner liner 22. The mounting base 11 is provided with a steam exhaust hole, which is connected to the inner liner 22 and the outside. The sealing ring 3 includes a mounting part 31, a connecting part 32 and a sealing part 33. The connecting part 32 vertically connects the mounting part 31 and the sealing part 33. The bottom of the mounting base 11 is press-fitted with the mounting part 31. The inner liner 22 is disposed inside the shell 21. The sealing part 33 is rolled outward to form a semi-circular structure with the opening facing upward. The outer side wall of the sealing part 33 abuts against the inner side wall of the inner liner 22. The sealing part 33 is used to seal the gap between the inner liner 22 and the mounting base 11.

[0026] It is worth noting that the liquid heater in this solution can be a humidifier, a rice cooker, or a health pot. A heating device is installed at the bottom of the shell 21. The heating device heats the inner pot 22, causing the liquid inside the inner pot 22 to evaporate and form steam. The steam is discharged to the outside through the steam outlet of the mounting base 11, thereby ensuring the air pressure balance inside the liquid heater.

[0027] At this time, the bottom of the mounting base 11 is interference-fitted with the mounting part 31, making the connection between the mounting base 11 and the sealing ring 3 very tight, ensuring that the sealing ring 3 will not easily fall off or shift from the mounting base 11 during long-term use, thus ensuring the stability of the entire sealing structure.

[0028] Moreover, when the liquid heater is in operation, the sealing ring 3 expands due to heat, causing the outer wall of the sealing part 33 to seal against the inner wall of the inner liner 22, thereby increasing the sealing effect of the sealing ring.

[0029] The connecting part 32 vertically connects the mounting base 11 and the sealing part 33, allowing the sealing ring 3 to have a certain range of adjustment in the vertical direction, accommodating inner tanks 22 of different heights within a certain range. When the inner tank 22 is high, the bottom of the connecting part 32 extends into the inner tank 22, allowing the sealing part 33 to abut against the lower part of the inner edge of the inner tank 22, achieving a sealing effect. When the inner tank 22 is low, the sealing part 33 can abut against the inner edge of the inner tank 22, thereby achieving a sealing effect and improving the versatility of the liquid heater.

[0030] Furthermore, the sealing part 33 is rolled outward to form a semi-circular structure with the opening facing upward. The mounting base 11 drives the first end of the sealing ring 3 to move downward. At this time, the inner wall of the inner liner 22 is constantly pressing against the end of the sealing part 33. Under the action of the dual forces, elastic deformation occurs, and the sealing part 33 tightly fits the inner wall of the inner liner 22, effectively filling the gap between the inner liner 22 and the mounting base 11, preventing steam and liquid from leaking from the gap, and forming a reliable sealing environment. In addition, the semi-circular structure increases the contact area between the sealing part 33 and the inner side of the inner liner 22, further improving the sealing effect of the sealing ring 3.

[0031] When steam impacts the sealing part 33 upwards, the sealing part 33 deforms to a certain extent under the steam pressure. However, due to its own elasticity, it generates a reverse elastic force, keeping it in contact with the inner liner 22. Furthermore, the inner wall of the inner liner 22 constantly presses against the end of the sealing part 33. The pressing force of the inner wall of the inner liner 22 provides a force opposite to the steam impact force, helping to maintain the contact between the sealing part 33 and the inner liner 22 and preventing the sealing part 33 from separating from the inner liner 22 due to steam impact.

[0032] The outer diameter of the end of the sealing part 33 is larger than the inner diameter of the side wall of the inner liner 22.

[0033] In its initial state, the outer diameter of the sealing part 33 is larger than the inner diameter of the inner liner 22. When the cover 1 and the main body 2 are closed, the sealing part 33 is located inside the inner liner 22, and the inner wall of the inner liner 22 applies pressure to the sealing part 33, causing the outer diameter of the sealing part 33 to undergo elastic deformation and tightly fit the inner wall of the inner liner 22. This effectively fills the gap between the sealing part 33 and the inner liner 22, preventing steam or liquid from leaking from the gap and significantly improving the sealing performance of the heater.

[0034] The mounting part 31, the connecting part 32 and the sealing part 33 are integrally formed structures, and the sealing ring 3 is made of high temperature resistant material.

[0035] The one-piece molded structure ensures that the sealing ring 3 maintains good overall elasticity. When subjected to internal steam pressure, the entire sealing ring 3 can undergo uniform elastic deformation, tightly fitting the mounting base 11 and the inner liner 22, better adapting to different working conditions and effectively preventing steam leakage. The one-piece molded design also greatly improves the stability and reliability of the sealing ring 3, reducing the likelihood of breakage during use and thus affecting the sealing effect.

[0036] In addition, this embodiment specifies that the sealing ring 3 is made of high-temperature resistant silicone material, which gives the sealing ring 3 good elasticity and flexibility, and can closely fit the surfaces of the mounting base 11 and the inner liner 22, further enhancing the sealing effect.

[0037] The bottom of the mounting base 11 is provided with an outwardly protruding mounting ring 111, and the top of the mounting part 31 is provided with an inwardly recessed mounting groove 311. The mounting ring 111 and the mounting groove 311 are arranged opposite to each other and are interference fit.

[0038] The protruding shape of the mounting ring 111 corresponds to the recessed shape of the mounting groove 311, allowing the user to easily align the mounting ring 111 with the mounting groove 311 for installation. Applying a certain amount of pressure allows the mounting ring 111 to smoothly embed into the mounting groove 311, completing the installation process. This relatively simple operation improves production assembly efficiency. Similarly, applying a certain force to the sealing ring 3 allows for quick separation of the mounting base 11 and the mounting part 31, facilitating the removal and replacement of the sealing ring 3 and reducing maintenance costs and difficulty.

[0039] It is worth noting that when the cover 1 and the main body 2 are closed, the mounting base 11 and the mounting part 31 are tightly connected, effectively preventing steam from leaking out from the connection between the mounting base 11 and the mounting part 31. During the operation of the liquid heater, the internal steam pressure is relatively high. If the connection is not tight enough, steam can easily escape from the gaps. The interference fit creates a sealing effect that greatly enhances the sealing performance of the connection, ensuring a sealed environment inside the entire liquid heater and improving heating efficiency and performance.

[0040] The inner wall of the mounting part 31 is provided with a horizontally open insertion groove 312. The cover 1 also includes a vent plate 12. The outer edge of the vent plate 12 is located in the insertion groove 312. The vent plate 12 is provided with a plurality of vertical vent holes. Steam passes through the vent holes and enters the mounting base 11.

[0041] Multiple vertical vents on the vent plate 12 provide specific flow paths for steam. During operation, the generated steam can orderly pass through these vents into the mounting base 11, preventing disorderly steam movement within the liquid heater. This reduces potential issues such as uneven local pressure and seal failure caused by steam turbulence, ensuring steam flows along the designed path and improving steam circulation efficiency within the equipment. Furthermore, the vent plate 12 also acts as a buffer against steam. If high-temperature, high-pressure steam directly impacts the mounting base 11, it can easily cause deformation and aging, affecting the service life of the liquid heater.

[0042] A horizontal steam baffle 321 is provided on the inner side of the connecting part 32. The steam baffle 321 includes an arc edge and a straight edge. The arc edge coincides with the inner wall of the connecting part 32, and the straight edge connects the two ends of the arc edge.

[0043] The horizontal baffle can buffer the direct impact of the pressure inside the pot on the sealing ring 3 to a certain extent, dispersing the pressure and preventing the sealing ring 3 from deforming or being damaged due to prolonged excessive pressure, thus extending the service life of the sealing ring 3 and ensuring the safety performance of the rice cooker. The steam baffle 321 also acts as a reinforcing rib, providing additional support for the sealing ring 3. When the internal pressure of the equipment increases and the sealing ring 3 is deformed by compression, the steam baffle 321 can help disperse the pressure, reduce excessive local deformation of the sealing ring 3, allowing it to better fit the sealing surface, preventing steam leakage, and ensuring the sealing effect of the equipment.

[0044] In addition, when the cover 1 is opened, the water droplets condensed on the inner wall of the cover 1 will flow down the cover 1 and into the steam baffle 321. At this time, the steam baffle 321 can guide the water flow and prevent water from dripping directly onto the electronic components, heating parts and other critical parts inside the equipment, thus extending the service life of the liquid heater.

[0045] The projected area of ​​the steam baffle 321 is less than 5% of the enclosing area of ​​the connecting part 32.

[0046] If the projected area of ​​the steam baffle 321 is too large, it will occupy too much space in the connection part 32, causing steam to accumulate locally and form excessively high pressure, affecting the normal operation of the liquid heater and ensuring that the internal pressure of the equipment remains stable within a reasonable range. Therefore, in this embodiment, the projected area of ​​the steam baffle 321 is limited to a small proportion, which ensures that steam can diffuse and flow more freely in the connection part 32 area, maintains the high efficiency of steam circulation inside the equipment, ensures stable heating effect, and avoids problems such as uneven heating due to poor steam flow.

[0047] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A liquid heater with good sealing performance, characterized in that, The device includes a cover and a main body. The cover includes a mounting base and a sealing ring. The main body has an inner liner. The sealing ring includes a mounting part, a connecting part, and a sealing part. The connecting part connects the mounting part and the sealing part. The mounting base is interference-fitted with the mounting part. The outer wall of the sealing part abuts against the inner wall of the inner liner so that the sealing part is used to seal the gap between the inner liner and the mounting base.

2. A liquid heater with good sealing performance according to claim 1, characterized in that, The sealing part is rolled outward to form a semi-circular structure with the opening facing upward.

3. A liquid heater with good sealing performance according to claim 1, characterized in that, The outer diameter of the end of the sealing part is larger than the inner diameter of the inner liner sidewall.

4. A liquid heater with good sealing performance according to claim 1, characterized in that, The mounting part, connecting part and sealing part are integrally formed, and the sealing ring is made of high temperature resistant material.

5. A liquid heater with good sealing performance according to claim 1, characterized in that, The bottom of the mounting base is provided with an outwardly protruding mounting ring, and the top of the mounting part is provided with an inwardly recessed mounting groove. The mounting ring and the mounting groove are arranged opposite to each other and are interference-fitted.

6. A liquid heater with good sealing performance according to claim 1, characterized in that, The inner wall of the mounting part is provided with a horizontally open insertion groove. The cover also includes a vent plate. The outer edge of the vent plate is located in the insertion groove. The vent plate is provided with a plurality of vertical vent holes. Steam passes through the vent holes and enters the mounting base.

7. A liquid heater with good sealing performance according to claim 1, characterized in that, A horizontal steam baffle is provided on the inner side of the connecting part. The steam baffle includes an arc edge and a straight edge. The arc edge coincides with the inner wall of the connecting part, and the straight edge connects the two ends of the arc edge.

8. A liquid heater with good sealing performance according to claim 1, characterized in that, The mounting base is provided with a steam exhaust hole, which is connected to the inner liner and the outside.

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