Stainless steel meal box with silica gel cover
By designing the anti-scalding part and matching connection of the silicone lid on the stainless steel lunch box, the problem of the stainless steel lunch box being over-scalding after being heated in the microwave is solved, achieving a safer and more convenient user experience.
Patent Information
- Application Number
- CN202510204810.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-04-11
AI Technical Summary
The existing stainless steel lunch boxes are prone to over-scaling after being heated in the microwave, which makes it inconvenient for users to take them out and have poor user experience.
A stainless steel lunch box with silicone cover is designed. The two opposite sides of the silicone cover are equipped with downward-extended anti-scalding parts, which use the thermal insulation performance of the silicone material to reduce heat transfer and reduce the risk of hotness. At the same time, the matching connection between the silicone cover and the stainless steel box body ensures sealing and convenience.
It significantly reduces the risk of hotness when users take out the lunch box, and improves the safety and convenience of the lunch box when heating in the microwave.
Smart Images

Figure CN119791383A_ABST
Abstract
Description
[Technical field] The present application belongs to the technical field of lunch boxes, and specifically relates to a stainless steel lunch box with a silicone cover. [Background technology] Lunch boxes are widely used tableware in daily life. They are mainly used to hold food and can be heated in a microwave oven when needed. Common lunch box materials on the market include plastic and glass. Plastic lunch boxes are prone to release harmful substances during microwave heating, posing a potential threat to food safety and human health; while glass lunch boxes are relatively safe, their bulky and fragile properties limit their portability and durability. As an alternative, stainless steel lunch boxes avoid the defects of plastic and glass in terms of material, but they are prone to heat up during microwave heating, causing users to use gloves when taking out the lunch boxes or wait for the lunch boxes to cool down before eating, which is not a convenient experience. [Summary of the invention] In order to solve the problem in the prior art that stainless steel lunch boxes are overheated and inconvenient to take out after being heated in a microwave oven, the present application provides a stainless steel lunch box with a silicone cover.
[0004] This application is implemented through the following technical solutions: A stainless steel lunch box with a silicone cover comprises a stainless steel box body and a silicone cover body matched with the stainless steel box body, wherein two opposite sides of the silicone cover body are respectively provided with a first anti-scalding portion and a second anti-scalding portion extending downward.
[0005] As described above, in the stainless steel lunch box with silicone cover, an upwardly extending arched protrusion is provided at the top edge of the silicone cover body, and the arched protrusion forms a force-bearing surface on the opposite sides of the first anti-scalding part and the second anti-scalding part respectively.
[0006] In the above-mentioned stainless steel lunch box with silicone cover, the first anti-scalding portion and the second anti-scalding portion are arranged in an arc shape, and their maximum height is h, and the height of the silicone cover body is H, wherein h≥H.
[0007] As described above, the top edge of the stainless steel lunch box with silicone cover is provided with an arc-shaped curling edge turned outward, and the silicone cover is provided with a connecting groove for the arc-shaped curling edge to be interference-fitted to connect the silicone cover and the stainless steel box body.
[0008] As described above, the stainless steel lunch box with silicone cover has at least one rib arranged along the path of the connecting groove provided in the connecting groove.
[0009] In the above-mentioned stainless steel lunch box with silicone cover, the rib is arranged on the inner wall of the connecting groove and at the connection with the inner side of the arc-shaped curling edge.
[0010] As described above, the outer edge of the silicone cover stainless steel lunch box is provided with an extension portion extending downward, and the inner side wall of the extension portion is provided with an arch portion extending toward the stainless steel box body, and the arch portion is used to support the arc-shaped curling edge.
[0011] As described above, in the stainless steel lunch box with silicone cover, the arch portion arches up from the notch of the connecting groove and then gradually tilts outward from top to bottom to form a fitting surface.
[0012] The stainless steel lunch box with silicone cover as described above, wherein the stainless steel box body is made of 316L stainless steel.
[0013] As described above, the stainless steel lunch box with silicone cover has a clamping part on the inner side of the connecting groove which is interference fit with the inner wall of the stainless steel box body from the inside to the outside, the ribs are correspondingly arranged on the clamping part, and an arc edge inclined inward is provided at the bottom edge of the clamping part, and the arc edge cooperates with the arch portion so that the notch direction of the connecting groove faces the direction of the stainless steel box body.
[0014] Compared with the prior art, this application has the following advantages: The silicone-covered stainless steel lunch box of the present application, by arranging downwardly extending first and second anti-scalding portions on two opposite sides of the silicone cover body, utilizes the heat-insulating property of the silicone material to effectively reduce the heat transfer from the stainless steel box body to the cover body and the edge during microwave heating, thereby significantly reducing the risk of scalding the user's hands when taking out the lunch box; at the same time, the matching connection between the silicone cover body and the stainless steel box body not only ensures the sealing, but also has the characteristics of lightness and durability, thereby overall improving the safety and ease of use of the lunch box when heated in a microwave oven.
Brief Description of the Drawings
[0016] Figure 1 It is a three-dimensional stereogram in the embodiment of the present application; Figure 2 yes Figure 1 Side view of Figure 3 yes Figure 1 Decomposition of Figure 1 ; Figure 4 yes Figure 1 Decomposition of Figure 2 ; Figure 5 yes Figure 1 A top view of Figure 6 yes Figure 5 A cross-sectional view of the silicone cover at AA in the middle; Figure 7 yes Figure 5 Cross-sectional view of AA. [Specific implementation method] In order to make the technical problems, technical solutions and beneficial effects solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0018] See also Figures 1 to 7 The silicone-covered stainless steel lunch box comprises a stainless steel box body 1 and a silicone cover body 2 matched and connected to the stainless steel box body 1, wherein two opposite sides of the silicone cover body 2 are respectively provided with a first anti-scalding portion 21 and a second anti-scalding portion 22 extending downward.
[0019] The silicone-covered stainless steel lunch box of the present application, by arranging downwardly extending first and second anti-scalding portions on two opposite sides of the silicone cover body, utilizes the heat-insulating property of the silicone material to effectively reduce the heat transfer from the stainless steel box body to the cover body and the edge during microwave heating, thereby significantly reducing the risk of scalding the user's hands when taking out the lunch box; at the same time, the matching connection between the silicone cover body and the stainless steel box body not only ensures the sealing, but also has the characteristics of lightness and durability, thereby overall improving the safety and ease of use of the lunch box when heated in a microwave oven.
[0020] Furthermore, as a preferred embodiment of the present invention but not a limitation, an upwardly extending arched protrusion 23 is provided at the top edge of the silicone cover 2, and the arched protrusion 23 forms a force-bearing surface 231 on opposite sides of the first anti-scalding portion 21 and the second anti-scalding portion 22 respectively.
[0021] In this embodiment, an upwardly extending arched protrusion is provided on the top edge of the silicone cover body, and a force-bearing surface opposite to the first anti-scalding part and the second anti-scalding part is formed on the arched protrusion, so that the structural strength of the silicone cover body can be enhanced, and four force-applying locations can be provided when the user takes out the lunch box, namely the first anti-scalding part and the force-bearing surface, the second anti-scalding part and the force-bearing surface. The user can take it out by pinching it with four fingers, while increasing the force-bearing area, thereby increasing the friction force, and avoiding operational inconvenience caused by the smooth surface or high temperature of the cover body; in addition, the arched protrusion can also play a certain heat-insulating role, reducing the conduction of heat to the top of the cover body, thereby reducing the risk of scalding the user; in other possible embodiments, the shape of the arched protrusion can be designed to be wavy or have an anti-slip texture.
[0022] Further, as a preferred implementation manner of the present solution but not a limitation, the first anti-scalding portion 21 and the second anti-scalding portion 22 are configured to be arc-shaped, and their maximum height is h, and the height of the silicone cover 2 is H, wherein h≥H.
[0023] In this embodiment, the coordination and practicality of the overall structure can be taken into account while ensuring the anti-scalding effect; the arc design is not only ergonomic and convenient for users to grip, but also can effectively reduce the heat conduction from the stainless steel box body to the edge of the cover body, thereby reducing the risk of users being scalded when taking out the lunch box; at the same time, by controlling the height of the anti-scalding portion to exceed the height of the cover body, the use of silicone materials can be reduced while ensuring the anti-scalding effect, saving production costs, and ensuring that the lunch box is more convenient to stack, store and carry; the arc surface of the anti-scalding portion can also be added with an anti-slip texture or a double-layer silicone structure to further improve the thermal insulation performance. This improvement can not only solve the problem of overheating of the edges of traditional stainless steel lunch boxes after heating, but also enhance the user experience, especially suitable for scenarios that require frequent heating and taking of food, further improving the practicality and market competitiveness of the product.
[0024] Furthermore, as a preferred embodiment of the present invention but not a limitation, the top edge of the stainless steel box body 1 is provided with an outwardly flipped arc-shaped curled edge 11, and the silicone cover body 2 is provided with a connecting groove 24 for the arc-shaped curled edge 11 to interference fit to connect the silicone cover body 2 and the stainless steel box body 1.
[0025] In this embodiment, an outward-turned arc-shaped curled edge is provided on the top edge of the stainless steel box body, and a connecting groove that is interference-fitted with the silicone cover is designed, so that a tight connection between the silicone cover and the stainless steel box body can be achieved, thereby effectively improving the sealing performance of the lunch box and preventing food from leaking during heating or carrying; the arc-shaped curled edge design can not only enhance the structural strength of the top of the box body, but also provide a larger contact area during connection, thereby making the connection between the silicone cover and the box body more stable, while reducing wear caused by frequent opening and closing; in addition, the interference fit method does not require additional locks or fixing devices, simplifies the structural design of the lunch box, reduces production costs and improves ease of use.
[0026] Furthermore, as a preferred implementation of the present solution but not a limitation, at least one rib 241 is provided in the connecting groove 24 and is arranged along the path of the connecting groove 24 .
[0027] In this embodiment, ribs distributed along the path are arranged in the connection groove. On the one hand, the sealing performance can be improved by increasing the local contact pressure, effectively preventing the liquid leakage of the lunch box during heating or pouring. On the other hand, the friction force when the silicone cover is separated from the stainless steel box body can be increased, thereby enhancing the connection stability between the two and avoiding accidental loosening of the cover due to external force or vibration. The design of the ribs can also compensate for the elastic attenuation problem of the silicone material due to long-term use to a certain extent, thereby extending the service life of the product. Its working principle is that the ribs are tightly fitted with the arc-shaped curling edge of the stainless steel box body through interference fit to form a multi-point contact sealing structure, and at the same time provide additional resistance when opening the cover, so that the user needs to apply greater force to separate the cover and the box body, thereby ensuring safety during use. The ribs can be designed as wavy, serrated or inclined structures to further optimize the sealing effect and friction performance. Tiny protrusions can also be added to the surface of the ribs or silicone materials of different hardness can be used to meet different usage requirements. It can not only solve the problems of insufficient sealing and easy loosening of the cover of traditional lunch boxes, but also improve the user's operating experience, further enhancing the practicality and market competitiveness of the product.
[0028] Furthermore, as a preferred implementation of the present solution but not a limitation, the rib 241 is provided on the inner wall of the connecting groove 24 and at the connection with the inner side of the arc-shaped curling edge 11 .
[0029] In this embodiment, the ribs are arranged at the connection between the inner wall of the connecting groove and the inner side of the arc-shaped curled edge, and its functional effect can be maximized by accurately positioning the position of the ribs, thereby improving the sealing performance and enhancing the connection stability between the silicone cover and the stainless steel box body; when the ribs are located at the connection on the inner side of the arc-shaped curled edge, they can effectively fill the tiny gap between the two to form a closer contact, further preventing liquid or gas leakage, and at the same time providing additional resistance when opening the cover to avoid accidental loosening of the cover due to external force or vibration; its working principle is that the ribs generate local pressure between the arc-shaped curled edge and the connecting groove through interference fit, and this pressure not only enhances the sealing effect, but also provides a more stable sense of control through friction when the user applies force to open the cover, reducing the risk of sliding or accidental popping open.
[0030] Furthermore, as a preferred embodiment of the present invention but not a limitation, the outer edge of the silicone cover 2 is provided with an extension portion 25 extending downward, and the inner wall of the extension portion 25 is provided with an arch portion 251 extending toward the stainless steel box body 1, and the arch portion 251 is used to support the arc-shaped curled edge 11.
[0031] In this embodiment, the design of the arch can effectively wrap and support the bottom of the arc-shaped curled edge, thereby forming a multi-layer contact sealing structure between the connecting groove and the arc-shaped curled edge, further preventing liquid or gas leakage, while also enhancing the bonding force between the cover and the box body, and preventing the cover from loosening or falling off due to external force or vibration; its working principle is that the arch fits tightly to the bottom contour of the arc-shaped curled edge through elastic deformation, thereby increasing friction and sealing pressure while providing additional support, making the connection between the cover and the box body more stable and easy to operate.
[0032] Furthermore, as a preferred implementation mode of the present solution but not a limitation, the arch portion 251 arches from the notch of the connecting groove 24 and then gradually tilts outward from top to bottom to form a fitting surface 252 .
[0033] In this embodiment, the inclined design of the fitting surface can not only guide the arc-shaped curled edge to be more smoothly embedded in the connecting groove and reduce the resistance during assembly, but also can tightly fit the outer surface of the arc-shaped curled edge through elastic deformation after the cover body is closed, thereby forming an additional sealing barrier and effectively preventing liquid or gas leakage; the arched part of the arch provides initial supporting force through elastic deformation, and when the user holds the first anti-scalding part and the second anti-scalding part with both hands to take out the lunch box, the inclined fitting surface will be deformed to fit the outer wall of the stainless steel box body, thereby driving the arch to support the arc-shaped curled edge more stably, ensuring that the connection between the cover body and the box body is more stable.
[0034] Furthermore, as a preferred implementation of the present solution but not a limitation, the stainless steel box body 1 is made of 316L stainless steel.
[0035] In this embodiment, the stainless steel box body is made of 316L stainless steel, which not only has excellent corrosion resistance, high temperature resistance and food safety, but also can ensure that no arcs and sparks are generated within the commonly used heating time range of 0 to 891 seconds during microwave heating, while not affecting the heating effect of food; the low magnetic permeability and stable structure of 316L stainless steel enable it to perform well in a microwave environment, thereby ensuring the safety of the heating process; in addition, its good thermal conductivity and uniform heat distribution characteristics can ensure that the food is heated evenly, avoid local overheating or uneven heating problems, and enhance the user experience.
[0036] Furthermore, as a preferred embodiment of the present invention but not a limitation, a clamping portion 242 is provided on the inner side of the connecting groove 24, which is interference fit with the inner wall of the stainless steel box body 1 from the inside to the outside, and the ribs 241 are correspondingly provided on the clamping portion 242. An arc edge 243 inclined inwardly is provided at the bottom edge of the clamping portion 242, and the arc edge 243 cooperates with the arch portion 251 so that the notch direction of the connecting groove 24 is toward the direction of the stainless steel box body 1.
[0037] In this embodiment, a clamping portion is provided on the inner side of the connecting groove, which is interference fit with the inner wall of the stainless steel box body from the inside to the outside, and the ribs are correspondingly provided on the clamping portion. At the same time, an arc edge inclined inwardly is designed on the bottom edge of the clamping portion so that it cooperates with the arch portion to guide the notch of the connecting groove toward the stainless steel box body, thereby significantly improving the sealing and assembly stability of the lunch box. The design of the clamping portion enhances the tight connection between the silicone cover and the stainless steel box body through interference fit, while the presence of the ribs further increases the local pressure and friction, thereby ensuring that the cover is not easy to loosen or fall off during use. The inclined design of the arc edge can effectively guide the position calibration of the cover during assembly, reduce installation resistance, and cooperate with the arch portion to form a multi-layer sealing structure, thereby preventing liquid or gas leakage.
[0038] The working principle of this embodiment is as follows: The silicone-covered stainless steel lunch box of the present application, by arranging downwardly extending first and second anti-scalding portions on two opposite sides of the silicone cover body, utilizes the heat-insulating property of the silicone material to effectively reduce the heat transfer from the stainless steel box body to the cover body and the edge during microwave heating, thereby significantly reducing the risk of scalding the user's hands when taking out the lunch box; at the same time, the matching connection between the silicone cover body and the stainless steel box body not only ensures the sealing, but also has the characteristics of lightness and durability, thereby overall improving the safety and ease of use of the lunch box when heated in a microwave oven.
[0039] The above are implementation methods provided in combination with specific contents, and it is not intended that the specific implementation of this application is limited to these descriptions. Any method structure similar to the present application, or some technical deductions or replacements made based on the concept of the present application, shall be deemed to be within the protection scope of this application.
Claims
1. Stainless steel lunch box with silicone cover, characterized by: It comprises a stainless steel box body (1) and a silicone cover body (2) matched with the stainless steel box body (1), wherein two opposite sides of the silicone cover body (2) are respectively provided with a first anti-scalding portion (21) and a second anti-scalding portion (22) extending downwards.
2. The stainless steel lunch box with silicone cover according to claim 1, characterized in that: An upwardly extending arched protrusion (23) is provided at the top edge of the silicone cover (2), and the arched protrusion (23) forms a force-bearing surface (231) on opposite sides of the first anti-scalding portion (21) and the second anti-scalding portion (22).
3. The stainless steel lunch box with silicone cover according to claim 1, characterized in that: The first anti-scalding portion (21) and the second anti-scalding portion (22) are arranged in an arc shape, and their maximum height is h, and the height of the silicone cover (2) is H, wherein h≥H.
4. The stainless steel lunch box with silicone cover according to claim 1, characterized in that: The top edge of the stainless steel box body (1) is provided with an outwardly turned arc-shaped curling edge (11), and the silicone cover body (2) is provided with a connecting groove (24) for the arc-shaped curling edge (11) to be interference-fitted to connect the silicone cover body (2) and the stainless steel box body (1).
5. The stainless steel lunch box with silicone cover according to claim 4, characterized in that: At least one rib (241) is provided in the connection groove (24) and is arranged along the path of the connection groove (24).
6. The stainless steel lunch box with silicone cover according to claim 5, characterized in that: The rib (241) is arranged on the inner wall of the connecting groove (24) and at the connection position with the inner side of the arc-shaped curling edge (11).
7. The stainless steel lunch box with silicone cover according to claim 5, characterized in that: An extension portion (25) extending downward is provided on the outer edge of the silicone cover (2), and an arch portion (251) extending toward the stainless steel box body (1) is provided on the inner wall of the extension portion (25), wherein the arch portion (251) is used to support the arc-shaped curling edge (11).
8. The stainless steel lunch box with silicone cover according to claim 7, characterized in that: The arched portion (251) arches up from the notch of the connecting groove (24), and then gradually tilts outwards from top to bottom to form a fitting surface (252).
9. The stainless steel lunch box with silicone cover according to claim 1, characterized in that: The stainless steel box body (1) is made of 316L stainless steel.
10. The stainless steel lunch box with silicone cover according to claim 7, characterized in that: A clamping portion (242) is provided on the inner side of the connecting groove (24) and is interference-fitted with the inner wall of the stainless steel box body (1) from the inside to the outside. The ribs (241) are correspondingly provided on the clamping portion (242). An arc edge (243) inclined inwards is provided at the bottom edge of the clamping portion (242). The arc edge (243) cooperates with the arch portion (251) so that the notch direction of the connecting groove (24) faces the direction of the stainless steel box body (1).