Window sealing structure and kitchen ware
By employing a radial and axial interference fit sealing ring design in the kitchenware viewing window structure, the problem of sealing failure caused by screw stripping is solved, achieving stable sealing and observation effects.
Patent Information
- Application Number
- CN202520440492.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-13
AI Technical Summary
During the sealing process, the window structure of kitchen utensils is prone to uneven pressure on the sealing ring due to stripped screw threads, which poses a risk of seal failure.
The sealing ring design employs radial and axial interference fits. Through the radial clearance interference fit between the sealing ring and the first and second frames, and the axial clearance interference fit between the sealing ring and the raised ribs and edges, stable contact between the sealing ring and the frames and raised ribs is ensured. Combined with the second bracket, the light-emitting component is fixed to avoid light scattering.
The sealing reliability of the viewing window structure has been improved, adapting to the thermal expansion differences under high temperature environments and ensuring that the observation effect is not affected.
Smart Images
Figure CN223899481U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of kitchenware technology, and in particular to a window sealing structure and kitchenware. Background Technology
[0002] When using kitchen utensils, you need to observe the parameters displayed on the circuit board through the transparent window.
[0003] The typical method for sealing a viewing window involves placing a sealing ring over the outside of the window, then installing the window structure inside the kitchen appliance's panel. The window structure and panel press against the sealing ring to achieve a waterproof seal. This sealing method usually requires screws to tighten the window structure to the panel. If the screws are spaced far apart or stripped, uneven pressure on the sealing ring can occur, posing a risk of seal failure.
[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model discloses a window sealing structure and kitchenware to solve the problem of the risk of sealing failure in the window structure.
[0006] The technical solution adopted in this utility model is as follows:
[0007] A window sealing structure is used in kitchenware. The kitchenware includes a base and a cover disposed at a first end of the base. The base and the cover form a hollow structure, and a window is provided on the cover. The window sealing structure includes: a first frame disposed at a second end of the cover, positioned corresponding to the outer side of the window; a first bracket, the first bracket including: a second frame disposed corresponding to the inner side of the first frame, with a raised edge extending from the outer side, the raised edge being fixed to the cover; a viewing window disposed at a first end of the second frame and inserted into the window; and a sealing ring; wherein there is a radial gap between the first frame and the second frame, and the sealing ring is sleeved between the first frame and the second frame and is interference-fitted with the radial gap.
[0008] A further technical solution is that the outer side of the sealing ring is provided with at least one ring of protrusions.
[0009] A further technical solution is that the radial gap between the first end of the first frame and the second frame is greater than the radial gap between the second end of the first frame and the second frame.
[0010] A further technical solution is that a raised rib is provided at the second end of the cover, and the position of the raised rib corresponds to the area between the outer side of the window and the inner side of the first frame; wherein, there is an axial gap between the raised edge and the raised rib, and the sealing ring is interference-fitted with the axial gap.
[0011] A further technical solution is that the first end of the sealing ring is provided with a groove, and the rib is inserted into the groove.
[0012] A further technical solution is that a circuit board is installed inside the hollow structure, and the window sealing structure also includes screws, which pass through the circuit board and the convex edge in sequence and are threadedly connected to the cover.
[0013] A further technical solution is that a light-emitting component is provided at the first end of the circuit board; the window sealing structure includes: a second bracket, the second end of which is provided at the first end of the circuit board and is fastened to the protruding edge, the first end of which extends into the second frame and has a through hole that is vertically opened through it, and the through hole is sleeved on the outside of the light-emitting component.
[0014] A further technical solution is that a positioning groove is opened at the first end of the second bracket, and a positioning post is provided at the second end of the first bracket, with the positioning post being inserted into the positioning groove.
[0015] The kitchen appliance equipped with the aforementioned window sealing structure includes: a base; a top cover disposed at a first end of the base; wherein the base and the top cover form a hollow structure, the window sealing structure is disposed at a second end of the top cover, and the position of the window sealing structure corresponds to the hollow structure.
[0016] The beneficial effects of this utility model embodiment are as follows:
[0017] (I) The window sealing structure of this utility model achieves sealing contact between the sealing ring and the inner wall of the first frame and the outer wall of the second frame by interference fit of the radial gap between the outer side of the sealing ring and the first frame and the second frame. Even if the screw strips, it will not affect the horizontal sealing. Moreover, the radial gap and the radial dimension of the sealing ring are relatively stable, which improves the sealing reliability of the window sealing structure.
[0018] (ii) Furthermore, by interfering with the axial clearance between the upper and lower ends of the sealing ring and the rib and the flange, the sealing ring is made to seal the surface of the second end of the rib and the first end of the flange, thereby further improving the sealing reliability of the window sealing structure.
[0019] Meanwhile, the contact surface between the rib and the sealing ring is concave-convex, which provides a buffer during axial interference fit, prevents the sealing ring from permanent deformation due to excessive compression, and adapts to the thermal expansion differences under high temperature environment.
[0020] (iii) Furthermore, by fixing the second bracket to the second end of the first bracket and fitting the through hole of the second bracket onto the outside of the light-emitting component on the circuit board, the light emitted by the light-emitting component is prevented from scattering, thus ensuring the observation effect of the window sealing structure. Attached Figure Description
[0021] Figure 1 This is a cross-sectional view of the kitchen appliance of this utility model.
[0022] Figure 2 This is a schematic diagram of the structure of the first end of the faceplate in this utility model.
[0023] Figure 3 This is a schematic diagram of the structure of the second end of the cover in this utility model.
[0024] Figure 4 for Figure 1 Enlarged view at point A.
[0025] Figure 5 This is an isometric view of the window sealing structure in this utility model.
[0026] Figure 6 This is an isometric view of the sealing ring in this utility model.
[0027] Figure 7 This is a cross-sectional view of the sealing ring in this utility model.
[0028] Figure 8 This is an isometric view of the circuit board in this utility model.
[0029] Figure 9 This is an isometric view of the second bracket in this utility model.
[0030] In the picture:
[0031] 1. Faceplate; 11. Window; 12. First frame; 13. Rib; 2. First bracket; 21. Viewing window; 22. Second frame; 23. Protruding edge; 231. Snap hole; 232. Positioning post; 3. Sealing ring; 31. Protrusion; 4. Second bracket; 41. Through hole; 42. Buckle; 43. Positioning groove; 5. Circuit board; 51. Light-emitting component; 6. Base. Detailed Implementation
[0032] The specific embodiments of this utility model are described below with reference to the accompanying drawings.
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0034] First embodiment:
[0035] This embodiment discloses a window sealing structure.
[0036] The window sealing structure is used in kitchen appliances. For example, the kitchen appliance is an electric steamer. Those skilled in the art will understand that the technical solutions disclosed herein can also be applied to other types of kitchen appliances with electronic control functions, such as electric fryers, electric cookers, and rice cookers. Figure 1 This is a cross-sectional view of the kitchen appliance of this utility model. Figure 2 This is a schematic diagram of the structure of the first end of the faceplate in this utility model. (See attached diagram.) Figure 1 and Figure 2 As shown, the kitchenware includes a base 6 and a cover 1 disposed at the first end of the base 6. The base 6 and the cover 1 form a hollow structure, and a window 11 is opened on the cover 1.
[0037] The window sealing structure includes a first frame 12, a first bracket 2, and a sealing ring 3. Figure 3 This is a schematic diagram of the structure of the second end of the faceplate in this utility model. (See diagram below.) Figure 3 As shown, the first frame 12 is located at the second end of the faceplate 1, corresponding to the outer side of the window 11. Figure 4 for Figure 1 Enlarged view at point A. Figure 5 This is an isometric view of the window sealing structure in this utility model. Figure 4 and Figure 5 As shown, the first bracket 2 includes a second frame 22 and a viewing window 21. The second frame 22 is positioned corresponding to the inner side of the first frame 12, and a raised edge 23 extends from its outer side, which is fixed to the faceplate 1. The viewing window 21 is disposed at the first end of the second frame 22 and is inserted into the window 11. Figure 6 This is an isometric view of the sealing ring in this utility model. Figure 4and Figure 6 As shown, a radial gap exists between the first frame 12 and the second frame 22. A sealing ring 3 is fitted between the first frame 12 and the second frame 22 and is interference-fitted with the radial gap. For example, the first end is the end furthest from the ground, and the second end is the end closest to the ground. The viewing window 21 is made of transparent material. A protruding edge 23 extends from the second end of the outer side of the second frame 22, protruding beyond the outer side of the first frame 12 and connected to the faceplate 1 by screws.
[0038] Preferably, the radial gap between the first end of the first frame 12 and the second frame 22 is greater than the radial gap between the second end of the first frame 12 and the second frame 22. Specifically, the outer diameter of the second end of the second frame 22 is greater than the outer diameter of the first end, thus forming a radial gap that is larger at the top and smaller at the bottom. This significantly improves the sealing performance of the sealing ring 3, while also providing upward deformation space for the sealing ring 3, facilitating installation and adapting to thermal expansion differences under high-temperature environments.
[0039] Figure 7 This is a cross-sectional view of the sealing ring in this utility model. Figure 6 and Figure 7 As shown, further, the outer side of the sealing ring 3 is provided with at least one ring of protrusions 31. Specifically, the longitudinal section of the sealing ring 3 is square. The longitudinal section of the protrusions 31 is an isosceles triangle facing outward from the sealing ring 3. The protrusions 31 have two horizontally arranged rings, spaced apart along the axial direction of the sealing ring 3. Of course, in other embodiments of this utility model, the protrusions 31 can also be other shapes, such as square, semi-circular, etc. Multiple protrusions 31 can also be designed as multi-level protrusions 31 asymmetrically distributed along the axial direction of the sealing ring 3, for example, using a combination of main protrusions 31 and auxiliary protrusions 31, wherein at least one main protrusion 31 is used for horizontal sealing between the first frame 12 and the second frame 22, and at least one auxiliary protrusion 31 forms an auxiliary sealing line with the first frame 12, so as to cope with different pressure scenarios, such as vapor permeation and liquid splashing, by using different sealing pressure ratios.
[0040] In this embodiment, by interfering with the radial clearance between the outer side of the sealing ring 3 and the first frame 12 and the second frame 22, a sealing contact is achieved between the sealing ring 3 and the inner wall of the first frame 12 and the outer wall of the second frame 22. Even if the screw strips, it will not affect the horizontal sealing. Moreover, the radial clearance and the radial dimension of the sealing ring 3 are relatively stable, which improves the sealing reliability of the window sealing structure.
[0041] Second embodiment:
[0042] Based on the first embodiment, the second embodiment further optimizes and refines the window sealing structure.
[0043] like Figure 3 and Figure 4As shown, a raised rib 13 is provided at the second end of the cover 1, and the position of the raised rib 13 corresponds to the area between the outer side of the window 11 and the inner side of the first frame 12. There is an axial gap between the raised edge 23 and the raised rib 13, and the sealing ring 3 is interference-fitted with the axial gap.
[0044] Furthermore, the first end of the sealing ring 3 is provided with a groove, and the rib 13 is inserted into the groove to facilitate the positioning of the sealing ring 3 and improve the sealing effect. The contact surface between the rib 13 and the sealing ring 3 is concave-convex, which provides buffering during axial interference fit, avoids permanent deformation of the sealing ring 3 due to excessive compression, and adapts to the thermal expansion difference under high temperature environment.
[0045] In this embodiment, by interfering with the axial clearance between the upper and lower ends of the sealing ring 3 and the rib 13 and the convex edge 23, the sealing ring 3 is made to seal the second end surface of the rib 13 and the first end surface of the convex edge 23, thereby further improving the sealing reliability of the window sealing structure.
[0046] Third Embodiment
[0047] Based on the first or second embodiment, the third embodiment further optimizes and refines the window sealing structure.
[0048] Figure 8 This is an isometric view of the circuit board in this utility model. (See attached image.) Figure 4 and Figure 8 As shown, a circuit board 5 is housed within the hollow structure. The window sealing structure also includes screws, which pass sequentially through the circuit board 5 and the flange 23 to be threadedly connected to the cover 1. A light-emitting component 51 is provided at the first end of the circuit board 5. Figure 4 and Figure 9 As shown, the window sealing structure includes a second bracket 4. The second end of the second bracket 4 is mounted on the first end of the circuit board 5 and engages with the protruding edge 23. The first end extends into the second frame 22 and has a vertically penetrating through-hole 41, which is fitted onto the outside of the light-emitting component 51. For example, the outer side of the first end of the second bracket 4 is provided with several buckles 42, and the outer side of the protruding edge 23 has several locking holes 231, which engage with the buckles 42. The through-hole 41 has several holes, and the light-emitting component 51 includes, for example, a display screen and indicator lights on the circuit board 5.
[0049] Figure 9 This is an isometric view of the second bracket in this utility model. Figure 5 and Figure 9 As shown, further, the first end of the second bracket 4 is provided with a positioning groove 43, and the second end of the first bracket 2 is provided with a positioning post 232. The positioning post 232 is inserted into the positioning groove 43, so that the second bracket 4 and the first bracket 2 are positioned and connected, ensuring that the light-emitting component 51 is located in the through hole 41.
[0050] In this embodiment, by fixing the second bracket 4 to the second end of the first bracket 2, the through hole 41 of the second bracket 4 is fitted onto the outside of the light-emitting component 51 on the circuit board 5 to avoid light scattering emitted by the light-emitting component 51 and ensure the observation effect of the window sealing structure.
[0051] Fourth embodiment:
[0052] This embodiment discloses a kitchen appliance equipped with any of the window sealing structures described in the first to third embodiments.
[0053] like Figure 1 As shown, the kitchen appliance includes a base 6 and a cover 1. The cover 1 is disposed at the first end of the base 6. The base 6 and the cover 1 form a hollow structure, and a viewing window sealing structure is disposed at the second end of the cover 1, with the viewing window sealing structure positioned within the hollow structure. For example, the cover 1 and the base 6 are fastened together.
[0054] In this embodiment, the circuit board 5, the second bracket 4, and the first bracket 2 of the window sealing structure are assembled first, then the screws of the window sealing structure are connected to the cover 1, and finally the cover 1 is fastened to the base 6. The structure is simple, easy to install, and convenient for production.
[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0056] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A window sealing structure, characterized in that, For use in kitchenware, the kitchenware includes a base and a cover disposed at a first end of the base, the base and the cover forming a hollow structure, and a window is provided on the cover; The window sealing structure includes: The first frame is disposed at the second end of the faceplate, and its position corresponds to the outer side of the window; A first support, the first support comprising: The second frame is positioned corresponding to the inner side of the first frame, with a raised edge extending outwards, and the raised edge is fixed to the cover. A viewable window is located at the first end of the second frame and is inserted into the window; Sealing ring; There is a radial gap between the first frame and the second frame, and the sealing ring is sleeved between the first frame and the second frame and is interference-fitted with the radial gap.
2. The window sealing structure according to claim 1, characterized in that: The outer side of the sealing ring has at least one raised ring.
3. The window sealing structure according to claim 1, characterized in that: The radial gap between the first end of the first frame and the second frame is greater than the radial gap between the second end of the first frame and the second frame.
4. The window sealing structure according to claim 1, characterized in that: A raised rib is provided at the second end of the face cover, and the position of the raised rib corresponds to the area between the outer side of the window and the inner side of the first frame. There is an axial gap between the convex edge and the convex rib, and the sealing ring is interference-fitted with the axial gap.
5. The window sealing structure according to claim 4, characterized in that: The sealing ring has a groove at its first end, and the rib is inserted into the groove.
6. The window sealing structure according to claim 1, characterized in that: The hollow structure houses a circuit board, and the window sealing structure also includes screws, which pass through the circuit board and the flange in sequence and are threadedly connected to the cover.
7. The window sealing structure according to claim 6, characterized in that: A light-emitting component is provided at the first end of the circuit board; the window sealing structure includes: The second bracket has a second end located at the first end of the circuit board and fastened to the protruding edge. The first end extends into the second frame and has a through hole that extends vertically through it. The through hole is fitted onto the outside of the light-emitting component.
8. The window sealing structure according to claim 7, characterized in that: The second bracket has a positioning groove at its first end, and the first bracket has a positioning post at its second end, which is inserted into the positioning groove.
9. A kitchen appliance equipped with a window sealing structure as described in any one of claims 1 to 8, characterized in that, The kitchen utensils include: Base; A face cover is disposed at the first end of the base; The base and the cover form a hollow structure, and the window sealing structure is disposed at the second end of the cover, with the position of the window sealing structure corresponding to the hollow structure.