Electric kettle capable of realizing periodic replacement of kettle liner and lower cover of kettle cover

By designing the first and second connecting components, the kettle liner and the lower lid of the kettle can be quickly replaced, solving the problem of complicated replacement of traditional electric kettles, extending service life, reducing maintenance costs, and improving safety and environmental protection.

CN223979689UActive Publication Date: 2026-03-10薛皓天
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The inner pot and lower lid of a traditional electric kettle are fixedly connected to the kettle body, making replacement complicated and unable to be done quickly. This results in resource waste, safety hazards, and does not meet environmental protection requirements.

Method used

By employing a first connecting component and a second connecting component, and through the cooperation of a sliding column, sleeve, spring, and cap, the kettle inner liner and the lower lid can be quickly and conveniently replaced periodically. The inner liner is disassembled by rotation, and the lower lid is replaced by a threaded connection structure. Combined with a multi-seal structure and stable support design, safety and reliability are ensured.

Benefits of technology

It enables convenient periodic replacement of the kettle inner liner and the bottom lid, extending the lifespan of the electric kettle, reducing maintenance costs, decreasing electronic waste, and improving safety and user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric kettle capable of realizing periodic replacement of a kettle liner and a kettle cover lower cover, and relates to the technical field of electric kettles. The bottom of an inner cavity of the shell is fixedly connected with a first connecting assembly, the top of the first connecting assembly is provided with an inner container, one side of the top of the shell is movably connected with a kettle cover through a hinge, the bottom of the kettle cover is in threaded connection with a second connecting assembly, and the bottom of the second connecting assembly is fixedly connected with a lower cover. By means of the first connecting assembly and the second connecting assembly, the kettle container and the lower cover of the kettle cover can be conveniently and periodically replaced, the maintenance convenience of a product is remarkably improved, the service life of the product is remarkably prolonged, the sliding column, the sleeve, the spring and the cap in the first connecting assembly are matched, the inner container can be rapidly detached or installed in a rotating mode, and the service life of the product is prolonged. The kettle container can be replaced without a professional tool, the problem that the kettle container of a traditional electric kettle is difficult to replace after scaling and corrosion is solved, and resource waste caused by overall scrapping is avoided.
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Description

Technical Field

[0001] This utility model belongs to the field of electric kettle technology, and in particular relates to an electric kettle that allows for the periodic replacement of the inner pot and the lower lid. Background Technology

[0002] Electric kettles, as a common small household appliance, are widely used in homes, offices, hotels, and other places due to their convenience and efficiency. With the improvement of people's living standards, higher demands are being placed on the safety, reliability, and ease of maintenance of electric kettles.

[0003] Traditional electric kettles typically feature a design where the inner pot is fixedly connected to the kettle body, and the lower lid is integrated with the main lid. Over time, the inner pot can develop scale and corrosion due to water quality and heating factors, affecting heating efficiency and water safety. The seal on the lower lid can also deteriorate due to aging and wear, leading to leaks. However, because the inner pot and lower lid are tightly fixed to the kettle's main structure, replacement is complex, often requiring professional assistance and sometimes even damaging the kettle's overall structure, causing significant inconvenience and increasing operating costs.

[0004] Currently, while some electric kettles on the market offer replaceable parts, most only address simple accessories such as the lid sealing ring. For critical components like the inner pot and the bottom lid, which require frequent replacement, there's a lack of effective periodic replacement solutions. Existing electric kettles are not designed with the replaceability of the inner pot and bottom lid in mind, forcing users to replace the entire kettle when parts age or break, resulting in wasted resources.

[0005] Furthermore, with increasing environmental awareness, society has placed higher demands on the maintainability and sustainability of products. Electric kettles that allow for periodic replacement of the inner pot and the bottom lid can extend the overall lifespan of the kettle, reduce electronic waste, and align with the trend of green and environmentally friendly development.

[0006] To address this issue, we offer an electric kettle that allows for periodic replacement of the inner pot and the bottom lid, thus resolving the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide an electric kettle that allows for the periodic replacement of the inner pot and the lower lid. Through the cooperation of the first connecting component and the second connecting component, the problem that the inner pot and the lower lid cannot be quickly replaced in the prior art is solved.

[0008] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0009] This utility model relates to an electric kettle that allows for periodic replacement of the inner pot and the lower lid. It includes an outer shell, a first connecting assembly fixedly connected to the bottom of the inner cavity of the outer shell, an inner pot located at the top of the first connecting assembly, a lid movably connected to the top side of the outer shell via a hinge, a second connecting assembly threadedly connected to the bottom of the lid, and a lower lid fixedly connected to the bottom of the second connecting assembly. The first connecting assembly includes a sliding column fixedly connected to the bottom of the inner cavity of the outer shell, an installation opening at the top of the outer shell, and a limiting block fixedly connected to the top surface of the inner pot. A sleeve is fitted onto the surface of the sliding column, a cap is threadedly connected to the top of the sleeve, and a spring is fitted onto the surface of the sleeve. The two ends of the spring are fixedly connected to the cap and the outer shell, respectively. The top of the limiting block contacts the top of the inner cavity of the outer shell. The second connecting assembly includes a threaded hole at the bottom of the lid, a screw threadedly connected to the inner cavity of the threaded hole, and the bottom of the screw fixedly connected to the lower lid. A first sealing ring is fitted onto the surface of the lower lid, and sealing grooves are provided at the top of the lower lid and the bottom of the lid, with a second sealing ring fitted into the inner cavity of the sealing groove.

[0010] The present invention is further configured such that a handle is fixedly connected to one side of the outer shell, and a power switch is fixedly connected to the bottom surface of the handle. The arrangement of the handle on the side of the outer shell and the power switch at the bottom conforms to ergonomic design, making it convenient for users to hold and control the power supply, thereby improving the ease of operation and safety.

[0011] The present invention is further configured such that a support ring is fixedly connected to the bottom of the inner cavity of the outer shell, a heater is fixedly connected to the bottom of the inner cavity of the outer shell, a power cord is fixedly connected to one end of the heater, and the other end of the power cord passes through to the outside of the outer shell and is fixedly connected to a plug. The fixed design of the support ring and the heater ensures stable installation of the heating component, and the connection structure of the power cord and the plug meets electrical safety standards, ensuring reliable operation of the heating function.

[0012] The present invention is further configured such that a water outlet is integrally formed on one side of the top of the outer shell, and a water outlet is opened on one side of the top of the inner liner. The water outlet and the water outlet correspond to each other. The corresponding design of the water outlet and the water outlet of the inner liner ensures smooth water flow when pouring, avoids splashing, and improves the user experience.

[0013] The present invention is further configured such that a blocking block is fixedly connected to the inner wall of the outer shell, one side of the blocking block is in contact with a limiting block, and the cooperation between the blocking block and the limiting block restricts the horizontal displacement of the inner liner, enhances the stability of the inner liner during the heating process, and prevents the seal from failing due to shaking.

[0014] The present invention is further provided that both sides of the top of the lid are provided with grooves, and the inner cavity of the grooves is provided with anti-slip texture. The grooves and anti-slip textures on the top of the lid make it easier for users to open and close the lid, avoid slipping, and improve operational safety.

[0015] The present invention is further configured such that a limiting groove is formed on the surface of the sliding column, and a slider is slidably connected to the inner cavity of the limiting groove. The other side of the slider is fixedly connected to the inner wall of the sleeve. The limiting groove and the slider slide together to guide the sleeve to move vertically along the sliding column, prevent rotation, and ensure that the disassembly and assembly of the inner liner is smooth and stable.

[0016] The present invention is further provided that an anti-slip pad is fixedly connected to the bottom of the outer shell, and the bottom of the anti-slip pad is provided with anti-slip texture. The anti-slip pad and anti-slip texture design at the bottom of the outer shell increases the friction when the electric kettle is placed, prevents accidental slippage, and improves the safety of use.

[0017] The present invention has the following beneficial effects.

[0018] 1. The first and second connecting components of this utility model enable convenient and periodic replacement of the kettle liner and the lower lid, significantly improving product maintenance convenience and service life. The cooperation of the sliding column, sleeve, spring, and cap in the first connecting component allows the inner liner to be quickly disassembled or installed by rotation, and the kettle liner can be replaced without professional tools. This solves the problem of difficult replacement of the kettle liner after scaling and corrosion in traditional electric kettles, and avoids the waste of resources caused by the overall scrapping. The second connecting component adopts a threaded connection structure of screw and threaded hole, which allows users to easily unscrew the lower lid for replacement and replace the aged first and second sealing rings. This solves the problem of water leakage caused by the wear of the seals and reduces maintenance costs. This design not only meets users' needs for easy-to-maintain home appliances, but also conforms to the concept of green environmental protection. By replacing components at the component level, the overall service life of the electric kettle is extended, and electronic waste is reduced.

[0019] 2. This utility model ensures safety and reliability during use through a multi-seal structure and stable support design. In the first connecting component, the elastic support of the spring ensures that the limiting block is in close contact with the top of the inner cavity of the outer shell. Combined with the limiting effect of the shielding block on the limiting block, it ensures that the inner pot is stable and does not shake during heating. In the second connecting component, the first sealing ring on the surface of the lower cover and the second sealing ring between the kettle lid and the lower cover form a double seal, effectively preventing steam leakage when boiling water and improving safety. In addition, the anti-slip pad on the bottom of the outer shell and the anti-slip texture on the top of the kettle lid enhance the grip stability and placement safety during operation, taking into account both user experience and functional practicality, and meeting the multiple needs for anti-scalding, anti-slip, and anti-leakage in daily use. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0021] Figure 1A 3D diagram of an electric kettle that allows for periodic replacement of the inner pot and the bottom lid.

[0022] Figure 2 This is a cross-sectional schematic diagram of an electric kettle that allows for periodic replacement of the inner pot and the lower lid.

[0023] Figure 3 This is a top view of the connection structure between the outer shell and the inner liner of an electric kettle that allows for periodic replacement of the inner liner and the lower lid.

[0024] Figure 4 A bottom view of the connection structure between the lid and the bottom cover of an electric kettle that allows for periodic replacement of the inner pot and the lid / bottom cover.

[0025] Figure 5 This is a bottom sectional view of the connection structure between the outer shell and the inner liner of an electric kettle that allows for periodic replacement of the inner liner and the lower lid.

[0026] Figure 6 A three-dimensional schematic diagram of the inner liner and the first connecting component of an electric kettle that allows for periodic replacement of the inner liner and the lower lid.

[0027] Figure 7 This is an exploded schematic diagram of the first connecting component in an electric kettle that allows for periodic replacement of the inner pot and the lower lid.

[0028] Figure 8 This is an exploded cross-sectional view of the first connecting component in an electric kettle that allows for periodic replacement of the inner pot and the lower lid.

[0029] In the attached diagram: 1. Outer shell; 2. First connecting assembly; 21. Sliding column; 22. Mounting port; 23. Limiting block; 24. Sleeve; 25. Cap; 26. Spring; 27. Blocking block; 28. Limiting groove; 29. ​​Sliding block; 3. Inner liner; 4. Lid; 5. Second connecting assembly; 51. Screw; 52. First sealing ring; 53. Second sealing ring; 6. Lower cover; 7. Support ring; 8. Heater. Detailed Implementation

[0030] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Example 1

[0032] Please see Figure 1-8This utility model relates to an electric kettle that allows for periodic replacement of the inner pot and the lower lid. It includes an outer shell 1, a first connecting assembly 2 fixedly connected to the bottom of the inner cavity of the outer shell 1, an inner pot 3 located at the top of the first connecting assembly 2, a lid 4 movably connected to one side of the top of the outer shell 1 via a hinge, a second connecting assembly 5 threadedly connected to the bottom of the lid 4, and a lower lid 6 fixedly connected to the bottom of the second connecting assembly 5. The first connecting assembly 2 includes a sliding post 21 fixedly connected to the bottom of the inner cavity of the outer shell 1, an installation opening 22 on the top of the outer shell 1, and a limiting block 23 fixedly connected to the top surface of the inner pot 3. A sleeve 24 is fitted on the surface of the lid 4. A cap 25 is threaded to the top of the sleeve 24. A spring 26 is fitted on the surface of the sleeve 24. The two ends of the spring 26 are fixedly connected to the cap 25 and the outer shell 1, respectively. The top of the limiting block 23 contacts the top of the inner cavity of the outer shell 1. The second connecting component 5 includes a threaded hole opened at the bottom of the lid 4. A screw 51 is threaded to the inner cavity of the threaded hole. The bottom of the screw 51 is fixedly connected to the lower cover 6. A first sealing ring 52 is fitted on the surface of the lower cover 6. A sealing groove is opened at the top of the lower cover 6 and the bottom of the lid 4. A second sealing ring 53 is fitted in the inner cavity of the sealing groove.

[0033] Specifically: The first connecting component 2 serves as the support and quick-release structure for the inner liner 3. It supports the sleeve 24 upwards through the elastic force of the spring 26. The bottom of the inner liner 3 contacts the cap 25 at the top of the sleeve 24. An annular limiting block 23 is provided on the outer side of the top of the inner liner 3. The upper surface of the limiting block 23 contacts the top of the inner cavity of the outer shell 1, and the side fits against the blocking block 27 on the inner wall of the outer shell 1, thus limiting the vertical direction of the inner liner 3. The inner liner 3 can slide vertically in the inner cavity of the outer shell 1 through the elastic support of the first connecting component 2 and the cooperation of the limiting block 23. By rotating the inner liner 3, the quick disassembly and assembly of the inner liner 3 can be achieved. The lower cover 6 is connected to the lid 4 by the screw 51 and can be unscrewed and replaced separately to meet the needs of periodic maintenance.

[0034] Example 2

[0035] Please see Figure 1-8Based on Embodiment 1, a handle is fixedly connected to one side of the outer shell 1, and a power switch is fixedly connected to the bottom surface of the handle. A support ring 7 is fixedly connected to the bottom of the inner cavity of the outer shell 1, and a heater 8 is fixedly connected to the bottom of the inner cavity of the outer shell 1. A power cord is fixedly connected to one end of the heater 8, and the other end of the power cord passes through to the outside of the outer shell 1 and is fixedly connected to a plug. A spout is integrally formed on the top side of one side of the outer shell 1, and a water outlet is opened on the top side of one side of the inner liner 3, with the water outlet corresponding to the spout. A blocking block 27 is fixedly connected to the inner wall of the outer shell 1, and one side of the blocking block 27 contacts the limiting block 23. Grooves are opened on both sides of the top of the lid 4, and the inner cavity of the groove is provided with anti-slip texture. A limiting groove 28 is opened on the surface of the sliding column 21, and a slider 29 is slidably connected to the inner cavity of the limiting groove 28. The other side of the slider 29 is fixedly connected to the inner wall of the sleeve 24. An anti-slip pad is fixedly connected to the bottom of the outer shell 1, and the bottom of the anti-slip pad is provided with anti-slip texture.

[0036] Specifically: the handle on the side of the outer shell 1 and the power switch at the bottom are ergonomically designed for easy gripping and power control, improving operational convenience and safety. The fixed design of the support ring 7 and the heater 8 ensures stable installation of the heating components. The connection structure of the power cord and plug meets electrical safety standards, ensuring reliable operation of the heating function. The corresponding design of the spout and the water outlet of the inner tank 3 ensures smooth water flow when pouring, avoiding splashing and improving the user experience. The cooperation of the blocking block 27 and the limiting block 23 restricts the horizontal displacement of the inner tank 3, enhancing its stability during heating and preventing seal failure due to shaking. The groove and anti-slip texture design on the top of the lid 4 facilitates opening and closing the lid 4, preventing slippage and improving operational safety. The sliding cooperation of the limiting groove 28 and the slider 29 guides the sleeve 24 to move vertically along the sliding column 21, preventing rotation and ensuring smooth and stable disassembly and assembly of the inner tank 3. The anti-slip pad and anti-slip texture design at the bottom of the outer shell 1 increases friction when the electric kettle is placed, preventing accidental slippage and improving safety.

[0037] The working principle of this utility model is as follows: The inner liner 3 is installed in the inner cavity of the outer shell 1 through the first connecting component 2. The spring 26 pushes the cap 25 and the sleeve 24 upward, so that the limiting block 23 fits tightly against the top of the inner cavity of the outer shell 1. The blocking block 27 restricts the rotation and movement of the inner liner 3, forming a stable support. After the lid 4 is closed by the hinge, the screw 51 of the second connecting component 5 is screwed into the threaded hole of the lid 4. The first sealing ring 52 of the lower cover 6 contacts the opening edge of the inner liner 3, and the second sealing ring 53 fills the sealing groove between the lid 4 and the lower cover 6, forming a double seal to prevent steam leakage when boiling water. The user holds the electric kettle by the handle and presses the power switch. The heater 8 is connected to the power supply through the power cord and starts heating. After the water boils, it is poured out through the water outlet and spout of the inner liner 3. The anti-slip texture on the top of the lid 4 facilitates opening and closing. When replacing the inner pot, rotate the inner pot 3 to align the limiting block 23 with the mounting port 22. Then, under the push of the spring 26, the inner pot 3 can move downwards, making it easy and quick to remove from the inner cavity of the outer shell 1. When installing the new inner pot 3, insert the limiting block 23 on the surface of the inner pot 3 into the inner cavity of the outer shell 1 along the mounting port 22 and rotate the inner pot 3. When the limiting block 23 contacts the blocking block 27, the inner pot 3 will not rotate and the installation is complete. At this time, the inner pot 3 compresses the spring 26, and the limiting block 23 contacts the top of the outer shell 1 and is limited by the blocking block 27. When replacing the lower cover 6, simply unscrew the lower cover 6, remove the old lower cover 6 and the first sealing ring 52 and the second sealing ring 53, and install the new lower cover 6 and the new first sealing ring 52 and the new second sealing ring 53. The sealing performance is restored through double sealing.

[0038] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. An electric kettle capable of realizing periodic replacement of the kettle body and the lower cover of the kettle lid, comprising a shell (1), characterized in that: The bottom of the inner cavity of the shell (1) is fixedly connected with a first connecting assembly (2), the top of the first connecting assembly (2) is provided with an inner container (3), one side of the top of the shell (1) is hingedly connected with a cover (4), the bottom of the cover (4) is threadedly connected with a second connecting assembly (5), and the bottom of the second connecting assembly (5) is fixedly connected with a lower cover (6). The first connecting assembly (2) comprises a sliding column (21) fixedly connected with the bottom of the inner cavity of the shell (1), a mounting opening (22) formed in the top of the shell (1), and a limiting block (23) fixedly connected to the top of the surface of the inner container (3), the surface of the sliding column (21) is sleeved with a sleeve (24), the top of the sleeve (24) is threadedly connected with a cap (25), the surface of the sleeve (24) is sleeved with a spring (26), the two ends of the spring (26) are fixedly connected with the cap (25) and the shell (1) respectively, and the top of the limiting block (23) is in contact with the top of the inner cavity of the shell (1). The second connecting assembly (5) comprises a threaded hole formed in the bottom of the cover (4), the inner cavity of the threaded hole is threadedly connected with a screw rod (51), the bottom of the screw rod (51) is fixedly connected with the lower cover (6), the surface of the lower cover (6) is sleeved with a first sealing ring (52), the top of the lower cover (6) and the bottom of the cover (4) are both provided with a sealing groove, and the inner cavity of the sealing groove is sleeved with a second sealing ring (53).

2. The electric kettle capable of achieving periodic replacement of the kettle body and the lower cover of the kettle cover according to claim 1, characterized in that: One side of the shell (1) is fixedly connected with a handle, and the bottom of the surface of the handle is fixedly connected with an electricity passing switch.

3. The electric kettle capable of achieving periodic replacement of the kettle body and the lower cover of the kettle cover, according to claim 1, characterized in that: The bottom of the inner cavity of the shell (1) is fixedly connected with a supporting ring (7), the bottom of the inner cavity of the shell (1) is fixedly connected with a heater (8), one end of the heater (8) is fixedly connected with a power cord, and the other end of the power cord penetrates out of the shell (1) and is fixedly connected with a plug.

4. The electric kettle capable of achieving periodic replacement of the kettle body and the lower cover of the kettle cover according to claim 1, characterized in that: The top of one side of the shell (1) is integrally formed with a water outlet nozzle, and the top of one side of the inner container (3) is provided with a water outlet opening corresponding to the water outlet nozzle.

5. The electric kettle capable of achieving periodic replacement of the kettle body and the lower cover of the kettle cover, according to claim 1, characterized in that: The inner wall of the shell (1) is fixedly connected with a shielding block (27), and one side of the shielding block (27) is in contact with the limiting block (23).

6. The electric kettle capable of achieving periodic replacement of the kettle body and the lower cover of the kettle cover according to claim 1, characterized in that: The top of the cover (4) is provided with a groove on both sides, and the inner cavity of the groove is provided with anti-skid lines.

7. The electric kettle capable of achieving periodic replacement of the kettle body and the lower cover of the kettle cover, according to claim 1, characterized in that: The surface of the sliding column (21) is provided with a limiting groove (28), the inner cavity of the limiting groove (28) is slidably connected with a sliding block (29), and the other side of the sliding block (29) is fixedly connected with the inner wall of the sleeve (24).

8. The electric kettle capable of achieving periodic replacement of the kettle body and the lower cover of the kettle cover according to claim 1, characterized in that: The bottom of the shell (1) is fixedly connected with an anti-skid pad, and the bottom of the anti-skid pad is provided with anti-skid lines.