Anti-crevice corrosion sealing rubber rings, pot lids and cooking utensils

Abstract

The invention discloses an anti-crevice corrosion sealing rubber ring, a pot cover and a cooking utensil. The anti-crevice corrosion sealing rubber ring comprises: an annular main body, provided with a first sealing edge and a second sealing edge; the first sealing edge is arranged at the upper end of the inner side of the annular main body and gradually bends upward from the outside to the inside; the second sealing edge is arranged at the lower end of the inner side of the annular main body and gradually bends downward from the outside to the inside; the anti-crevice corrosion sealing rubber ring can be detachably installed on the pot cover, and the first sealing edge or the second sealing edge can be selected to fit with the inner wall of the pot cover, thereby achieving a fool-proof installation effect; when the pot cover is arranged on the pot body, steam generated by the pot body and impurities carried by the steam will move upward to reach the top wall of the pot cover, and the first sealing edge or the second sealing edge can prevent impurities such as steam or salt from accumulating at the junction between the pot cover flange and the top of the pot cover body and in the tiny gap of the pot cover flange, thereby avoiding corrosion of the pot cover and improving the service life of the pot cover.

Description

Technical Field

[0001] The present invention relates to the technical field of cooking utensils, and in particular to a crevice corrosion resistant sealing rubber ring and a pot cover. Background Art

[0002] Currently, the pot lid of the cooking utensil has a pot lid flange, which is annularly wrapped around the top wall of the pot lid. The pot lid flange is formed by bending, so that many tiny gaps are formed on the surface of the pot lid flange. During the cooking process of the cooking utensil, a large amount of steam is discharged upward from the pot body, and some of the steam will remain in the annular junction between the inner wall of the pot lid and the top wall of the pot lid, as well as on the surface of the pot lid flange. Long-term cooking will continuously accumulate salt and moisture in the tiny gaps at the junction and in the pot lid flange, causing corrosion of the pot lid, thereby shortening the service life of the cooking utensil. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the present invention provides an anti-crevice corrosion sealing rubber ring and a pot cover.

[0004] In a first aspect, an embodiment of the present invention provides an anti-crevice corrosion sealing rubber ring, which is applied to a pot cover having a pot cover flange. The anti-crevice corrosion sealing rubber ring includes: an annular body;

[0005] The annular body is provided with a first sealing edge and a second sealing edge, and the first sealing edge and the second sealing edge are symmetrically arranged in the vertical direction;

[0006] The first sealing edge is provided at the upper end of the inner side of the annular body and gradually bends upward from the outside to the inside;

[0007] The second sealing edge is provided at the lower end of the inner side of the annular body and gradually bends downward from the outside to the inside;

[0008] Wherein, the first sealing edge (110) is fitted to the pot cover flange (220), or the second sealing edge (120) is fitted to the pot cover flange (220).

[0009] The anti-crevice corrosion sealing rubber ring according to the embodiment of the present invention has at least the following technical effects: the anti-crevice corrosion sealing rubber ring can be detachably installed on the pot cover, and the first sealing edge or the second sealing edge can be selected to fit with the pot cover flange of the pot cover, that is, the anti-crevice corrosion sealing rubber ring can be installed in the pot cover in either the forward or reverse direction, thereby achieving a fool-proof installation effect, and the anti-crevice corrosion sealing rubber ring can prevent steam from entering the tiny gap of the pot cover flange, thereby avoiding corrosion of the pot cover flange.

[0010] According to some embodiments of the present invention, a first annular ridge is provided on the outer side of the first sealing edge.

[0011] According to some embodiments of the present invention, the maximum thickness of the first annular ridge is K1, and the height of the first annular ridge is H1, satisfying:

[0012] According to some embodiments of the present invention, a second annular ridge is provided on the outer side of the second sealing edge.

[0013] According to some embodiments of the present invention, the maximum thickness of the second annular ridge is K2, and the height of the second annular ridge is H2, satisfying:

[0014] In a second aspect, an embodiment of the present invention further provides a pot cover, comprising:

[0015] A pot cover body, wherein the inner side wall of the pot cover body is provided with a mounting hole and a pot cover flange, and the top of the pot cover body is provided with an exhaust hole;

[0016] The anti-crevice corrosion sealing rubber ring according to the first embodiment of the present invention;

[0017] The anti-crevice corrosion sealing rubber ring is detachably installed in the pot cover body, wherein:

[0018] The pot cover flange is tightly fitted with the outer side of the first sealing edge and the first sealing edge abuts against the top of the pot cover body, or the pot cover flange is tightly fitted with the outer side of the second sealing edge and the second sealing edge abuts against the top of the pot cover body.

[0019] The pot cover according to the embodiment of the present invention has at least the following technical effects: the anti-crevice corrosion sealing rubber ring can be detachably installed on the pot cover, and the first sealing edge or the second sealing edge can be selected to fit with the pot cover flange of the pot cover, that is, the anti-crevice corrosion sealing rubber ring can be installed in the pot cover in either the forward or reverse direction, thereby achieving a fool-proof installation effect; when the first sealing edge fits with the pot cover flange, the first sealing edge can prevent steam and salt from accumulating at the junction between the pot cover flange and the top of the pot cover body; when the second sealing edge fits with the pot cover flange, the second sealing edge can prevent steam and salt from accumulating at the junction between the pot cover flange and the top of the pot cover body.

[0020] According to some embodiments of the present invention, a positioning protrusion is provided on the outer side wall of the annular body, and the positioning protrusion can be inserted into the mounting hole and extend out of the mounting hole, so that the anti-crevice corrosion sealing rubber ring is installed in the pot cover body.

[0021] According to some embodiments of the present invention, there are multiple mounting holes, and the multiple mounting holes are circumferentially distributed around the axis of the pot cover body; there are multiple positioning protrusions, and the multiple positioning protrusions are circumferentially distributed around the axis of the anti-crevice corrosion sealing rubber ring; the multiple mounting holes correspond one-to-one to the multiple positioning protrusions.

[0022] In a third aspect, an embodiment of the present invention further provides a cooking utensil, comprising:

[0023] pot body;

[0024] A pot cover according to the second embodiment of the present invention;

[0025] Wherein, the pot cover is installed on the pot body.

[0026] The cooking utensil according to the embodiment of the present invention has at least the following technical effects: the cooking utensil adopts the pot cover to prevent steam and salt from accumulating at the junction between the inner wall of the pot cover and the top of the pot cover, thereby avoiding corrosion.

[0027] According to some embodiments of the present invention, the cooking appliance is an electric pressure cooker or a pressure cooker.

[0028] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0030] Figure 1 Schematic diagram of the structure of the anti-crevice corrosion sealing rubber ring of some embodiments of the present invention;

[0031] Figure 2 Schematic diagram of the structure of the anti-crevice corrosion sealing rubber ring installed on the pot cover in some embodiments of the present invention;

[0032] Figure 3 yes Figure 2 An enlarged schematic diagram of point A;

[0033] Figure 4 Schematic diagram of a longitudinal section of an anti-crevice corrosion sealing rubber ring according to some embodiments of the present invention;

[0034] Figure 5 is a schematic diagram of a longitudinal section of another anti-crevice corrosion sealing rubber ring according to some embodiments of the present invention;

[0035] Figure 6 This is a schematic structural diagram of another anti-crevice corrosion sealing rubber ring installed on a pot cover in some embodiments of the present invention.

[0036] Figure Number:

[0037] An annular body 100, a first sealing edge 110, a first annular ridge 111, a second sealing edge 120, a second annular ridge 121, a positioning block 130, and a horizontal line 140;

[0038] The pot cover body 200 , the mounting hole 210 , the pot cover flange 220 , the exhaust hole 230 , and the top wall 240 . DETAILED DESCRIPTION

[0039] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0040] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, inside, outside, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0041] In the description of this invention, "above," "below," and "within" are understood to be exclusive of the number indicated. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0042] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0043] The embodiments of the present invention are further described below with reference to the accompanying drawings.

[0044] According to some embodiments of the present invention, referring to Figure 1 and Figure 4The anti-crevice corrosion sealing rubber ring includes an annular body 100. The annular body 100 is annular. A first sealing edge 110 and a second sealing edge 120 are provided on the annular body 100. The center of the annular body 100 passes through a horizontal line 140. The first sealing edge 110 and the second sealing edge 120 are symmetrically arranged in the vertical direction with the horizontal line 140 as the axis of symmetry. The first sealing edge 110 is provided at the upper end of the inner side of the annular body 100, and the first sealing edge 110 gradually curves upward from the outside to the inside. The second sealing edge 120 is provided at the lower end of the inner side of the annular body 100, and the second sealing edge 120 gradually curves downward from the outside to the inside.

[0045] It should be noted that the inner side is the side close to the axis of the anti-crevice corrosion sealing rubber ring, and the outer side is the side away from the axis of the anti-crevice corrosion sealing rubber ring.

[0046] This anti-crevice corrosion sealing rubber ring can be removably installed on the pot lid. Either the first sealing edge 110 or the second sealing edge 120 can be selected to mate with the inner sidewall of the pot lid. This means the anti-crevice corrosion sealing rubber ring can be installed from either the front or back of the pot lid, providing a fool-proof installation solution. Furthermore, if the first sealing edge 110 is attached to the inner sidewall of the pot lid and becomes damaged, it can be replaced with the second sealing edge 120, eliminating the need to replace the entire anti-crevice corrosion sealing rubber ring and saving costs. The anti-crevice corrosion sealing rubber ring prevents steam from entering the tiny gaps in the pot lid's flange, thus preventing corrosion.

[0047] According to some embodiments of the present invention, referring to Figure 2 and Figure 3 The inner side wall of the pot lid body 200 is provided with a mounting hole 210 and a pot lid flange 220. The pot lid flange 220 is gradually curved upward from the outside to the inside. The mounting hole 210 is located on the lower side of the pot lid flange 220. The top of the pot lid body 200 is provided with an exhaust hole 230. The anti-crevice corrosion sealing rubber ring is detachably installed in the pot lid body 200, including: the pot lid flange 220 is tightly fitted with the outer side of the first sealing edge 110 and the first sealing edge 110 is in contact with the top of the pot lid body 200, or the pot lid flange 220 is tightly fitted with the outer side of the second sealing edge 120 and the second sealing edge 120 is in contact with the top of the pot lid body 200.

[0048] It can be understood that the anti-crevice corrosion sealing rubber ring can be detachably installed on the pot cover, and the first sealing edge 110 or the second sealing edge 120 can be selected to fit with the pot cover flange 220 of the pot cover body 200, that is, the anti-crevice corrosion sealing rubber ring has two installation methods, front or back, and is then installed in the pot cover body 200, which has the effect of fool-proof installation.

[0049] It will also be appreciated that the exhaust hole 230 can be selectively opened or closed.

[0050] When the first sealing edge 110 is in contact with the lid flange 220, the lid is placed on the pot body. The steam generated by the pot body and the impurities carried by the steam will move upward to reach the top wall 240 of the lid. The first sealing edge 110 can prevent impurities such as steam or salt from accumulating at the junction between the lid flange 220 and the top of the lid body 200, thereby avoiding corrosion of the lid and increasing the service life of the lid.

[0051] When the second sealing edge 120 is in contact with the pot cover flange 220 , the second sealing edge 120 can prevent steam and salt from accumulating at the junction between the pot cover flange 220 and the top of the pot cover body 200 .

[0052] According to some embodiments of the present invention, referring to Figure 3 The outer wall of the annular body 100 is provided with a positioning protrusion 130, which can be inserted into the mounting hole 210 and extend out of the mounting hole 210, so that the anti-crevice corrosion sealing rubber ring is installed in the pot cover body 200.

[0053] Preferably, there are multiple mounting holes 210, which are circumferentially distributed around the axis of the pot cover body 200; there are multiple positioning protrusions 130, which are circumferentially distributed around the axis of the anti-crevice corrosion sealing rubber ring; the multiple mounting holes 210 correspond one-to-one to the multiple positioning protrusions 130, so that the anti-crevice corrosion sealing rubber ring can be stably installed in the pot cover body 200.

[0054] According to some embodiments of the present invention, referring to Figure 4 A first annular ridge 111 is provided on the outer side of the first sealing edge 110 .

[0055] It is understandable that, referring to Figure 3 and Figure 4 When the anti-crevice corrosion sealing rubber ring is installed on the pot lid and the first sealing edge 110 is tightly fitted with the pot lid flange 220 of the pot lid body 200, the upper end of the first sealing edge 110 abuts against the top wall 240 of the pot lid body 200, thereby preventing steam or salt from accumulating at the junction between the top wall 240 and the pot lid flange 220. When the outer side of the first sealing edge 110 is further provided with a first annular ridge 111, the first sealing edge 110 and the pot lid flange 220 have an interference fit, allowing the first sealing edge 110 to fit more closely with the pot lid flange 220 and increasing the horizontal distance between the rightmost side of the upper end of the first sealing edge 110 and the junction, making it more difficult for steam or salt to accumulate at the junction.

[0056] Preferably, the maximum thickness of the first annular ridge 111 is K1, and the height of the first annular ridge 111 is H1, satisfying: This ensures that the first annular ridge 111 can fit closely to the lid flange 220 .

[0057] According to some embodiments of the present invention, preferably, referring to Figure 4 The cross-sectional profile of the first annular ridge 111 is arc-shaped with a radius of R2; the cross-sectional profile of the upper end of the first sealing edge 110 is arc-shaped with a radius of R1; the distance between the upper end of the arc-shaped profile of the first annular ridge 111 and the outer end of the arc-shaped profile of the upper end of the first sealing edge 110 in the up-down direction is B1.

[0058] Preferably, refer to Figure 5 and Figure 6 , R1=R2, B1=0, to further enhance the effectiveness of preventing steam or salt accumulation at the interface. When the anti-crevice corrosion sealing rubber ring is installed on the pot lid, and the first sealing edge 110 cooperates with the pot lid flange 220 of the pot lid body 200, the upper end of the first sealing edge 110 abuts against the top wall 240 of the pot lid body 200 to form a first line of protection, thereby preventing steam or salt from accumulating at the interface between the top wall 240 and the pot lid flange 220. Furthermore, the outer side of the first annular ridge 111 abuts against the pot lid flange 220 to form a second line of protection, thereby preventing steam from passing through the interface between the top wall 240 and the pot lid flange 220 and entering the gap between the pot lid flange 220 and the first sealing edge 110, thereby preventing steam from accumulating in the tiny gap of the pot lid flange 220.

[0059] According to some embodiments of the present invention, a second annular ridge 121 is provided on the outer side of the second sealing edge 120 .

[0060] It is understood that when the anti-crevice corrosion sealing rubber ring is installed on the pot lid and the second sealing edge 120 is tightly fitted with the pot lid flange 220 of the pot lid body 200, the second sealing edge 120 can prevent steam or salt from accumulating at the junction between the top wall 240 and the pot lid flange 220. When the outer side of the second sealing edge 120 is further provided with a second annular ridge 121, the second sealing edge 120 and the pot lid flange 220 have an interference fit, allowing the second sealing edge 120 to fit more closely to the pot lid flange 220 and increasing the horizontal distance between the rightmost side of the second sealing edge 120 and the junction, making it even more difficult for steam or salt to accumulate at the junction.

[0061] Preferably, the maximum thickness of the second annular ridge 121 is K2, and the height of the second annular ridge 121 is H2, satisfying: This ensures that the first annular ridge 111 can fit closely to the lid flange 220 .

[0062] According to some embodiments of the present invention, preferably, referring to Figure 4The cross-sectional profile of the second annular ridge 121 is arc-shaped with a radius of R4; the cross-sectional profile of the lower end of the second sealing edge 120 is arc-shaped with a radius of R3; the distance between the lower end of the arc-shaped profile of the second annular ridge 121 and the outer end of the arc-shaped profile of the lower end of the second sealing edge 120 in the up and down direction is B2.

[0063] Preferably, R3=R4 and B2=0, to further enhance the effectiveness of preventing steam or salt accumulation at the interface. When the anti-crevice corrosion sealing rubber ring is installed on the pot lid and the second sealing edge 120 cooperates with the pot lid flange 220 of the pot lid body 200, the second sealing edge 120 abuts against the top wall 240 of the pot lid body 200 to form a first line of defense, thereby preventing steam or salt from accumulating at the interface between the top wall 240 and the pot lid flange 220. Furthermore, the outer side of the second annular ridge 121 abuts against the pot lid flange 220 to form a second line of defense, thereby preventing steam from passing through the interface between the top wall 240 and the pot lid flange 220 and entering the gap between the pot lid flange 220 and the second sealing edge 120, thereby preventing steam from accumulating in the tiny gap of the pot lid flange 220.

[0064] According to some embodiments of the present invention, a cooking utensil includes a pot body and a pot cover. The pot cover is mounted on the pot body.

[0065] The cooking utensil adopts the pot cover to prevent steam and salt from accumulating at the junction between the inner side wall of the pot cover and the top of the pot cover, thereby preventing corrosion.

[0066] Preferably, the cooking appliance is an electric pressure cooker or a pressure cooker.

[0067] Throughout this specification, references to the term "some embodiments" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0068] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A pot cover, the pot cover having a pot cover flange (220), characterized in that: The pot cover comprises: A pot cover body (200), wherein the inner side wall of the pot cover body (200) is provided with a mounting hole (210) and a pot cover flange (220), and the top of the pot cover body (200) is provided with an exhaust hole (230); An anti-crevice corrosion sealing rubber ring, comprising an annular body (100); the annular body (100) is provided with a first sealing edge (110) and a second sealing edge (120), the first sealing edge (110) and the second sealing edge (120) being symmetrically arranged in an up-down direction; The first sealing edge (110) is provided at the upper end of the inner side of the annular body (100) and is gradually curved upward from the outside to the inside; The second sealing edge (120) is provided at the lower end of the inner side of the annular body (100) and is gradually bent downward from the outside to the inside; Wherein, the first sealing edge (110) is attached to the pot cover flange (220), or the second sealing edge (120) is attached to the pot cover flange (220); The anti-crevice corrosion sealing rubber ring is detachably installed in the pot cover body (200), wherein: The pot cover flange (220) is tightly fitted with the outer side of the first sealing edge (110) and the first sealing edge (110) is in contact with the top of the pot cover body (200); or, the pot cover flange (220) is tightly fitted with the outer side of the second sealing edge (120) and the second sealing edge (120) is in contact with the top of the pot cover body (200); A first annular convex strip (111) is provided on the outer side of the first sealing edge (110); a second annular convex strip (121) is provided on the outer side of the second sealing edge (120); The cross-sectional profile of the second annular convex strip (121) is in the shape of an arc, with a radius of R4; the cross-sectional profile of the lower end of the second sealing edge (120) is in the shape of an arc, with a radius of R3; the distance between the lower end of the arc profile of the second annular convex strip (121) and the outer end of the arc profile of the lower end of the second sealing edge (120) in the vertical direction is B2; R3=R4, B2=0; when the anti-crevice corrosion sealing rubber ring is installed on the pot cover, and the second sealing edge (120) and the pot cover flange (220) of the pot cover body (200) cooperate with each other, the second sealing edge (120) and the top wall (240) of the pot cover body (200) abut against each other to form a first line of protection, and the outer side of the second annular convex strip (121) abuts against the pot cover flange (220) to form a second line of protection.

2. The pot cover according to claim 1, characterized in that: The maximum thickness of the first annular convex strip (111) is K1, and the height of the first annular convex strip (111) is H1, satisfying:

3. The pot cover according to claim 1, characterized in that: The maximum thickness of the second annular convex strip (121) is K2, and the height of the second annular convex strip (121) is H2, satisfying:

4. The pot cover according to claim 1, characterized in that: The outer side wall of the annular main body (100) is provided with a positioning protrusion (130), and the positioning protrusion (130) can be inserted into the mounting hole (210) and extend out of the mounting hole (210), so that the anti-crevice corrosion sealing rubber ring is installed in the pot cover body (200).

5. The pot cover according to claim 4, characterized in that: There are multiple mounting holes (210), and the multiple mounting holes (210) are circumferentially distributed around the axis of the pot cover body (200). There are multiple positioning protrusions (130), and the multiple positioning protrusions (130) are circumferentially distributed around the axis of the anti-crevice corrosion sealing rubber ring. The multiple mounting holes (210) correspond to the multiple positioning protrusions (130) one by one.

6. A cooking utensil, characterized in that: include: pot body; The pot cover according to any one of claims 1 to 5; Wherein, the pot cover is installed on the pot body.

7. The cooking appliance according to claim 6, characterized in that The cooking utensil is an electric pressure cooker or a high pressure cooker.

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