Knob waterproof structure and cooking utensil

Abstract

The utility model discloses a knob waterproof structure, which comprises a shell and a knob, an inner cavity is arranged in the shell, the top of the shell is provided with a first waterproof rib and a second waterproof rib which are matched with the knob, a diversion trench is formed between the first waterproof rib and the second waterproof rib, the inner side of the knob is provided with a third waterproof rib, and the inner side of the third waterproof rib is provided with a second waterproof rib. And the third waterproof rib is embedded into the flow guide groove and is used for preventing liquid from entering the inner cavity. The utility model further discloses a cooking utensil, the top of the shell is provided with the first waterproof rib and the second waterproof rib which are matched with the knob, and the third waterproof rib is arranged on the inner side of the knob, so that the third waterproof rib is embedded into the flow guide groove, external liquid does not easily flow into the inner cavity under the interception of the triple waterproof ribs, and the cooking utensil is convenient to use. Short circuit or other electric shock hidden dangers in the cooking utensil are prevented, and the service life of the cooking utensil is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of cooking utensil technology, and in particular to a waterproof knob structure and cooking utensil. Background Technology

[0002] The knobs of existing cooking appliances on the market have not effectively solved problems such as waterproofing. For example, induction cookers, also known as induction stoves, use alternating current to generate an alternating magnetic field with constantly changing direction through a coil. Eddy currents will appear inside the conductor in the alternating magnetic field. The Joule heating effect of the eddy currents will heat the conductor, thereby achieving heating.

[0003] The knob structure in traditional induction cookers is not airtight, allowing liquids such as water and oil to easily enter the inner cavity of the cooking appliance through the knob structure, causing short circuits or other electric shock hazards inside the appliance. Utility Model Content

[0004] The main purpose of this utility model is to propose a waterproof knob structure and cooking utensil, which aims to solve the problem that liquids such as water stains and oil stains can easily enter the inner cavity of the cooking utensil through the knob structure, causing short circuits or other electric shock hazards inside the cooking utensil.

[0005] To achieve the above objectives, this utility model proposes a waterproof knob structure, including a housing and a knob. The housing has an inner cavity, and the top of the housing has a first waterproof rib and a second waterproof rib that cooperate with the knob. A guide groove is formed between the first waterproof rib and the second waterproof rib. A third waterproof rib is provided on the inner side of the knob and is embedded in the guide groove to prevent liquid from entering the inner cavity.

[0006] In one embodiment, the first waterproof reinforcement, the second waterproof reinforcement, and the third waterproof reinforcement are in the form of a ring structure, with the first waterproof reinforcement located outside the second waterproof reinforcement and spaced apart from it.

[0007] In one embodiment, a drainage rib extends from the outer wall of the third waterproof rib, and a first drainage hole is provided at the bottom of the guide groove. The drainage rib is used to discharge the liquid in the guide groove to the first drainage hole when the knob is rotated.

[0008] In one embodiment, the sidewall of the first drainage hole is provided with a curved surface, which is connected to the guide groove.

[0009] In one embodiment, the knob waterproof structure further includes a base, the outer casing is mounted on the base, the base is provided with a second drain hole, the second drain hole communicates with the first drain hole, and the second drain hole is used to discharge liquid to the outside.

[0010] In one embodiment, the inner wall of the first waterproof rib is provided with a plurality of reinforcing ribs.

[0011] In one embodiment, the height of the first waterproof reinforcement bar is greater than the height of the second waterproof reinforcement bar.

[0012] In one embodiment, the knob is provided with a first groove, and the first waterproof rib abuts against the bottom of the first groove.

[0013] In one embodiment, the knob is provided with a second groove, and the second waterproof rib is placed in the second groove.

[0014] This utility model also proposes a cooking appliance, which is an induction cooker, and the cooking appliance includes the waterproof structure of the knob.

[0015] This invention features a first waterproof rib, a second waterproof rib, and a third waterproof rib on the inner side of the knob, all located on the top of the outer shell. The third waterproof rib is embedded in the guide groove. With the triple waterproof ribs, external liquids are less likely to flow into the inner cavity, preventing short circuits or other electric shock hazards inside the cooking appliance and extending its service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 An exploded view of cooking utensils;

[0018] Figure 2 This is a schematic diagram of the outer shell structure;

[0019] Figure 3 A cross-sectional view of a cooking utensil;

[0020] Figure 4 This is a magnified view of a section of a cooking utensil.

[0021] Figure 5 This is a schematic diagram of the bottom structure of the knob.

[0022] Explanation of icon numbers:

[0023] 1-Outer shell, 11-Inner cavity, 12-First waterproof rib, 121-Reinforcing rib, 13-Second waterproof rib, 2-Knob, 21-Third waterproof rib, 211-Drainage rib, 23-First groove, 24-Second groove, 3-Guide groove, 31-First drainage hole, 311-Curved surface, 4-Base, 41-Second drainage hole.

[0024] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, if the word "and / or" appears throughout the text, it means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0028] This utility model proposes a waterproof structure for a knob, including a housing 1 and a knob 2. The housing 1 has an inner cavity 11. The top of the housing 1 is provided with a first waterproof rib 12 and a second waterproof rib 13 that cooperate with the knob 2. A guide groove 3 is formed between the first waterproof rib 12 and the second waterproof rib 13. A third waterproof rib 21 is provided on the inner side of the knob 2. The third waterproof rib 21 is embedded in the guide groove 3 to prevent liquid from entering the inner cavity 11.

[0029] In the embodiments of this utility model, such as Figure 1 and Figure 2 As shown, Figure 1 An exploded view of cooking utensils. Figure 2 The diagram shows the structure of the outer shell 1. The waterproof structure of the knob has a first waterproof rib 12, a second waterproof rib 13 that cooperates with the knob 2, and a third waterproof rib 21 on the inner side of the knob 2. The third waterproof rib 21 is embedded in the guide groove 3. Under the interception of the triple waterproof ribs, external liquid is not easy to flow into the inner cavity 11, which prevents short circuits or other electric shock hazards inside the cooking appliance and improves the service life of the cooking appliance.

[0030] An encoder and display panel are installed in the inner cavity 11. Knob 2 is mounted on the encoder, which is connected to the display panel. The knob 2 of the cooking appliance typically controls the heating power, temperature, and other function settings. These knobs 2 are usually connected to the internal circuitry and control system. If moisture seeps into the knob 2, it can cause short circuits, electrical malfunctions, or even fires. The waterproof structure of the knob prevents moisture from entering the knob 2, ensuring the safety of the electrical circuits during use and extending the appliance's lifespan. Water, steam, and oil stains are common sources of contamination in the kitchen; they easily seep into electrical appliances, causing corrosion, aging, and performance degradation of the induction cooker components. By designing a waterproof structure on the knob 2, these substances can be effectively prevented from entering, avoiding damage to the knob 2 components due to prolonged humid environments, thus improving the overall durability and lifespan of the appliance.

[0031] For example, in induction cooker applications, knob 2 is often used to adjust temperature and power, requiring it to maintain a sensitive and stable response during use. If moisture or oil gets inside knob 2, it may cause it to jam, become difficult to turn, or malfunction, even leading to electrical failure. A waterproof structure ensures knob 2 maintains normal function in humid environments, improving user safety and reliability. In daily use, dirt, oil, and moisture easily accumulate on the surface of knob 2, especially during cleaning or use. The waterproof design of knob 2 prevents moisture from easily penetrating its interior, reducing the chance of bacterial and mold growth. At the same time, the waterproof structure makes cleaning the surface of knob 2 easier, effectively preventing odors or bacterial growth caused by moisture accumulation, maintaining a hygienic kitchen environment. With the continuous development of waterproof technology, the waterproof rating of induction cookers has become more stringent. The waterproof structure not only ensures that water around knob 2 cannot enter but also improves the overall waterproof performance of the induction cooker. This means the induction cooker can better cope with the humid environment of the kitchen, such as splashing water and steam, ensuring stable operation even in extreme conditions. The waterproof knob 2 design gives users greater peace of mind when using the induction cooker, eliminating concerns about moisture causing malfunctions or damage. Furthermore, the waterproof structure reduces cleaning and maintenance work caused by water infiltration, making daily use more convenient and enhancing the overall user experience.

[0032] First specific embodiment

[0033] like Figure 2 and Figure 5 As shown, Figure 5 The diagram shows the bottom structure of knob 2. The first waterproof rib 12, the second waterproof rib 13, and the third waterproof rib 21 are all ring structures. The first waterproof rib 12 is outside the second waterproof rib 13, and the first waterproof rib 12 and the second waterproof rib 13 are spaced apart.

[0034] The third waterproof rib 21 effectively forms a continuous sealing ring around the knob 2, preventing moisture or liquid from entering the knob 2. Especially when there is water flowing around the knob 2, the annular structure provides a multi-layered waterproof barrier, further enhancing the overall sealing performance. By setting multiple waterproof ribs, multiple layers of protection can be achieved, increasing the waterproof capability of the induction cooker knob 2. Even if one waterproof rib fails to completely seal, the others can still provide protection, reducing the risk of water seepage. The annular structure can evenly distribute pressure, avoiding excessive local pressure or deformation. Especially during rotation, the annular waterproof ribs can provide stable waterproof protection at different angles and directions. No matter how the knob 2 is rotated, the waterproof ribs maintain effective sealing. The annular waterproof rib design reduces dead zones for water or oil accumulation, making the area around the knob 2 and outer casing 1 easier to clean. Furthermore, multiple annular waterproof ribs also prevent dirt or residue from affecting the sealing effect, improving the overall ease of maintenance of the induction cooker.

[0035] The first waterproof rib 12 is the external waterproof rib, serving as the first layer of waterproofing. The second waterproof rib 13 is the internal waterproof rib, serving as the third layer of waterproofing. The outer shell 1 and the knob 2 are assembled in an inverted interlocking manner to prevent domestic water from entering. This inverted interlocking design typically means that the outer shell 1 and the knob 2 are connected by a specific snap-fit ​​or plug-in structure. This design ensures a more precise connection between the knob 2 and the outer shell 1, preventing loosening or detachment caused by human operation or external force. This assembly method ensures that the knob remains in a fixed position during use, preventing displacement or shaking, and providing a more stable operating experience. The inverted interlocking design also makes the assembly of the outer shell 1 and the knob 2 simpler and more efficient.

[0036] In the production process, the inverted structure reduces the use of additional screws, fasteners, or tools, thereby lowering production costs and assembly difficulty. This simplified assembly method also helps improve production line efficiency, ensuring fast and high-quality product assembly. The inverted structure also enhances the sealing and waterproofing of the assembled parts. In some electrical appliances (such as induction cookers), a good seal is needed between the outer casing 1 and the knob 2 to prevent moisture, oil, or steam from entering. By using an inverted design, the outer casing 1 and knob 2 can fit tightly together, reducing the possibility of moisture or other liquid penetration, improving the device's waterproof and moisture-proof capabilities, and extending its service life. The inverted design usually requires a specific direction and force to achieve correct assembly, thus preventing the knob 2 from being installed in an incorrect direction or manner, reducing the possibility of user error. Furthermore, if disassembly is required, the inverted structure is often designed to be difficult to disassemble easily, preventing the knob 2 from falling off or being damaged due to user error during daily use. The inverted structure makes the connection between the outer casing 1 and knob 2 tighter, which helps improve the overall robustness of the product, especially when the knob 2 is subjected to external forces (such as rotation or pressing) during operation. The inverted design disperses and transfers these forces, reducing the direct impact on the housing 1 and knob 2, thereby improving the product's impact resistance and durability. The inverted design not only enhances functionality but also positively impacts the aesthetics. The tight fit between the knob and housing results in a simpler, more streamlined overall shape, avoiding exposed connection points or seams and improving the product's overall appearance. Furthermore, the precise fit provides users with a better visual and tactile experience during operation.

[0037] The outer wall of the third waterproof rib 21 extends with a drainage rib 211, and the bottom of the flow channel 3 is provided with a first drainage hole 31. The drainage rib 211 is used to discharge the liquid in the flow channel 3 to the first drainage hole 31 when the knob 2 is rotated. The third waterproof rib 21 is a second layer of waterproof rib. When the knob 2 is assembled into the outer shell 1, the third waterproof rib 21, the second waterproof rib 13, and the first waterproof rib 12 are interlocked to prevent domestic water from entering the encoder and the display panel. When there is a large amount of domestic water in the flow channel 3, the domestic water can be discharged to the first drainage hole 31 more effectively through the drainage rib 211 when the knob 2 is rotated.

[0038] Second specific embodiment

[0039] like Figure 3 and Figure 4 As shown, Figure 3 This is a cross-sectional view of a cooking utensil. Figure 4This is a partially enlarged cross-sectional view of the cooking appliance. The sidewall of the first drain hole 31 is provided with a curved surface 311, which is connected to the guide channel 3. The curved surface 311 allows the liquid in the guide channel 3 to flow out of the first drain hole 31 more smoothly under the action of the drain ribs 211, further improving the smoothness of drainage and preventing excessive residual liquid in the guide channel 3 after rotating the knob 2.

[0040] The waterproof knob structure also includes a base 4, on which the outer shell 1 is mounted. The base 4 is provided with a second drain hole 41, which communicates with the first drain hole 31. The second drain hole 41 is used to drain liquid to the outside. When some liquid enters the guide channel 3, it can be drained through the first drain hole 31 to the second drain hole 41 and then discharged outside the cooking appliance. When there is domestic water in the guide channel 3, by rotating the knob 2, the drain rib 211 rotates with the knob 2, which can efficiently drain domestic water from the guide channel 3 to the first drain hole 31 and the second drain hole 41, and then discharge it outside the cooking appliance.

[0041] Third specific embodiment

[0042] like Figure 2 As shown, the inner wall of the first waterproof reinforcement 12 is provided with a plurality of reinforcing ribs 121. The reinforcing ribs 121 can increase the bending, compressive and tensile strength of the first waterproof reinforcement 12, improve the load-bearing capacity of the outer shell 1, and prevent the first waterproof reinforcement 12 from deforming or breaking due to external load. By adding reinforcing ribs 121 to the first waterproof reinforcement 12, the rigidity of the structure can be effectively improved, preventing it from undergoing excessive deformation under external force. The reinforcing ribs 121 can help reduce the deflection or bending of the component and maintain the stability of the first waterproof reinforcement 12, which is especially important when bearing bending moment and axial force. In some areas with large stress, the reinforcing ribs 121 can effectively disperse stress, avoid local stress concentration, and reduce the risk of failure.

[0043] Fourth specific embodiment

[0044] The height of the first waterproof reinforcement 12 is greater than the height of the second waterproof reinforcement 13. The outer first waterproof reinforcement 12 is more affected by external water pressure and the environment. Designing the outer first waterproof reinforcement 12 to be taller than the inner second waterproof reinforcement 13 can enhance the strength and stability of the waterproof layer on the outside of the structure, better resist water pressure and water erosion, and reduce the risk of leakage. The higher height of the outer first waterproof reinforcement 12 can effectively distribute water pressure and structural load, making the configuration of the inner and outer second waterproof reinforcement 13 and the first waterproof reinforcement 12 more reasonable, and providing better protection for cooking utensils.

[0045] Fifth specific embodiment

[0046] The knob 2 is provided with a first groove 23, and the first waterproof rib 12 abuts against the bottom of the first groove 23. The knob 2 is provided with a second groove 24, and the second waterproof rib 13 is placed in the second groove 24. During the use of the induction cooker, especially during cooking, water vapor or water droplets may enter the area of ​​the knob 2. The design of the first waterproof rib 12 and the second waterproof rib 13 can effectively block water droplets, steam or splashes, prevent water from entering the interior of the cooking appliance and coming into contact with electrical parts, and avoid short circuits or damage. The first waterproof rib 12 and the second waterproof rib 13 are respectively set on the inner and outer sides of the knob 2, forming a double waterproof barrier, further improving the waterproof effect. The first groove 23 and the second groove 24 provide accurate space so that the first waterproof rib 12 and the second waterproof rib 13 can fit tightly with the knob 2 and the outer shell 1, ensuring the effectiveness of the waterproof function. The first groove 23 and the second groove 24 on the knob 2 fit tightly with the first waterproof rib 12 and the second waterproof rib 13, respectively, to ensure sealing and prevent water from seeping in along the gap between the knob 2 and the outer shell 1. This design prevents moisture and water droplets from easily penetrating the internal circuit boards and other electronic components of the cooking appliance, extending its lifespan and avoiding electrical malfunctions caused by moisture ingress. The cooperation of the first waterproof rib 12, the second waterproof rib 13, the first groove 23, and the second groove 24 not only aids in waterproofing but also enhances the stability between the knob 2 and the outer casing 1. The waterproof ribs in the grooves provide support, preventing the knob 2 from loosening, falling off, or being damaged due to excessive external force or friction during use. During cooking, water or oil may splash from the pot, and the waterproof rib design around the knob 2 effectively prevents these droplets from entering its interior. The first waterproof rib 12 and the second waterproof rib 13, by setting different heights and positions, form a multi-layered waterproof barrier, effectively blocking splashed water or oil, ensuring the inside of the induction cooker remains dry, and reducing the risk of malfunctions caused by moisture penetration.

[0047] This utility model also proposes a cooking appliance, which can be an induction cooker, a gas stove, or other cooking appliances. The cooking appliance includes the waterproof knob structure, which can prevent liquid from entering the cooking appliance during cooking and improve the service life of the cooking appliance.

[0048] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A waterproof knob structure, characterized in that, The device includes a housing and a knob. The housing has an inner cavity. The top of the housing has a first waterproof rib and a second waterproof rib that cooperate with the knob. A flow guide groove is formed between the first waterproof rib and the second waterproof rib. The inner side of the knob has a third waterproof rib that is embedded in the flow guide groove to prevent liquid from entering the inner cavity.

2. The waterproof knob structure as described in claim 1, characterized in that, The first waterproof reinforcement, the second waterproof reinforcement, and the third waterproof reinforcement are in the form of a ring structure. The first waterproof reinforcement is located outside the second waterproof reinforcement, and the first waterproof reinforcement and the second waterproof reinforcement are spaced apart.

3. The waterproof knob structure as described in claim 1, characterized in that, The outer wall of the third waterproof rib extends into a drainage rib, and the bottom of the guide groove is provided with a first drainage hole. The drainage rib is used to discharge the liquid in the guide groove into the first drainage hole when the knob is rotated.

4. The waterproof knob structure as described in claim 3, characterized in that, The sidewall of the first drainage hole is provided with a curved surface, which is connected to the guide groove.

5. The waterproof knob structure as described in claim 1, characterized in that, The waterproof structure of the knob also includes a base, on which the outer shell is mounted. The base is provided with a second drain hole, which communicates with the first drain hole. The second drain hole is used to drain liquid to the outside.

6. The waterproof knob structure as described in claim 2, characterized in that, The inner wall of the first waterproof reinforcement bar is provided with several reinforcing ribs.

7. The waterproof knob structure as described in claim 2, characterized in that, The height of the first waterproof reinforcement bar is greater than the height of the second waterproof reinforcement bar.

8. The waterproof knob structure as described in claim 1, characterized in that, The knob is provided with a first groove, and the first waterproof rib abuts against the bottom of the first groove.

9. The waterproof knob structure as described in claim 1, characterized in that, The knob is provided with a second groove, and the second waterproof rib is placed in the second groove.

10. A cooking utensil, characterized in that, The cooking appliance is an induction cooker, and the cooking appliance includes the waterproof knob structure according to any one of claims 1-9.

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