Sealing structure, sealing assembly, valve body assembly, cover body assembly and cooking utensil

Abstract

The utility model provides a sealing structure, a sealing assembly, a valve body assembly, a cover body assembly and a cooking utensil, the sealing structure is arranged at a valve port, the sealing structure comprises a sealing ring main body, the sealing ring main body is provided with a flexible sealing surface, and a first concave part and a second concave part are arranged on the flexible sealing surface at intervals; the first concave part and the second concave part extend in the circumferential direction of the sealing ring body, at least part of the first concave part extends into the valve port and is in contact fit with the outer end of the valve port, the second concave part is located outside the valve port, and a sealing convex part is formed between the first concave part and the second concave part. According to the technical scheme, the problem that the sealing effect is affected due to the fact that a sealing ring is difficult to deform in the prior art is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of small household appliances, and in particular to a sealing structure, a sealing assembly, a valve body assembly, a cover assembly and a cooking utensil. Background Art

[0002] The sealing ring is generally made of natural rubber or synthetic rubber and has a certain degree of flexibility. The sealing ring can be sleeved on the shaft body and can achieve a seal between the shaft body and the hole body.

[0003] In the related art, the side wall of the sealing ring is a flat surface, which abuts against the end wall of the sealed hole, that is, the sealing is a plane-to-plane fit. In this way, the sealing ring is difficult to deform during sealing, which will affect the abutment effect between the planes and lead to poor sealing effect. Utility Model Content

[0004] The main purpose of the present invention is to provide a sealing structure, a sealing assembly, a valve body assembly, a cover assembly and a cooking utensil to solve the problem in the related art that the sealing ring is difficult to deform and thus affects the sealing effect.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a sealing structure is provided, which is arranged at the valve port, and the sealing structure includes: a sealing ring body, having a soft sealing surface, and a first recess and a second recess are arranged at intervals on the soft sealing surface, the first recess and the second recess extend along the circumference of the sealing ring body, at least part of the first recess extends into the valve port and contacts and cooperates with the outer end of the valve port, the second recess is located outside the valve port, and a sealing protrusion is formed between the first recess and the second recess.

[0006] According to the technical solution of the present invention, a sealing structure is provided at the valve port. The sealing structure includes a sealing ring body, a flexible sealing surface, and a first recess and a second recess spaced apart on the flexible sealing surface. The first and second recesses extend circumferentially along the sealing ring body. At least a portion of the first recess extends into the valve port and engages with the valve opening. A sealing protrusion is formed between the first and second recesses. Due to this arrangement, when the sealing structure is sealing, at least a portion of the first recess extends into the valve port, allowing the sealing protrusion to deform and approach the end wall of the valve port to achieve a seal. The second recess provides space for the sealing protrusion to deform, thereby facilitating its deformation. Furthermore, the contact and engagement between the first recess and the valve port, and the contact and engagement between the sealing protrusion and the end wall, enhance the sealing effect. Therefore, the technical solution of the present application effectively solves the problem in related arts that sealing rings are difficult to deform, thereby affecting the sealing effect.

[0007] Furthermore, the curvature of the circle on which the cross-sectional contour of the first recess lies is smaller than the curvature of the circle on which the cross-sectional contour of the second recess lies, and / or the arc length of the cross-sectional contour of the first recess is greater than the arc length of the cross-sectional contour of the second recess. This arrangement results in the curvature of the cross-sectional contour of the first recess being greater than the curvature of the cross-sectional contour of the second recess, making it easier to insert the first recess into the valve port. Furthermore, the smaller curvature of the cross-sectional contour of the second recess improves the overall structural strength while also allowing the sealing ring body to have a certain amount of deformation space.

[0008] Furthermore, the sealing structure further comprises a positioning protrusion provided on the inner side of the sealing ring body and protruding toward the center line of the sealing ring body. The provision of the positioning protrusion can achieve positioning, thereby making the position of the sealing structure more stable.

[0009] Furthermore, the sealing structure further comprises an axial protruding ring, which is arranged at an end of the sealing ring body away from the soft sealing surface. The provision of the axial protruding ring can improve the structural strength of the sealing ring body and prevent the sealing ring body from excessive deformation.

[0010] Furthermore, the axial protruding ring is located at the outer edge of the sealing ring body. The above arrangement can improve the structural strength of the edge of the sealing ring body.

[0011] According to a second aspect of the present invention, a sealing assembly is provided, comprising: a transmission rod; and a sealing structure disposed on the transmission rod, the sealing structure being the aforementioned sealing structure. The sealing structure achieves sealing through the combined action of the first recess and the sealing protrusion, thereby ensuring a good sealing effect. Therefore, the sealing assembly having the aforementioned sealing structure also has the aforementioned advantages.

[0012] Furthermore, the sealing assembly further comprises a sealing member, which is arranged on the transmission rod and spaced apart from the sealing structure. The arrangement of the sealing member can achieve sealing of different valve ports.

[0013] According to a third aspect of the present invention, a valve body assembly is provided, comprising a sealing assembly, wherein the sealing assembly is the aforementioned sealing assembly. The aforementioned sealing assembly has a good sealing effect, and thus the valve body assembly having the aforementioned sealing assembly also has a good sealing effect.

[0014] According to a fourth aspect of the present invention, a cover assembly is provided, comprising a valve assembly, wherein the valve assembly is the above-mentioned valve assembly. The valve assembly can ensure a sealing effect, and thus the cover assembly having the above-mentioned valve assembly also has the above-mentioned advantages.

[0015] According to a fifth aspect of the present invention, a cooking utensil is provided, comprising a cover assembly, wherein the cover assembly is the above-mentioned cover assembly. The valve assembly in the above-mentioned cover assembly can ensure a sealing effect, and thus the cooking utensil having the above-mentioned cover assembly also has the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the sealing structure according to the present utility model is shown;

[0018] Figure 2 Shown Figure 1 A schematic cross-sectional view of a sealing structure;

[0019] Figure 3 A schematic cross-sectional view of an embodiment of a sealing assembly according to the present invention is shown;

[0020] Figure 4 Shown Figure 3 A schematic diagram of the three-dimensional structure of the transmission rod of the sealing assembly;

[0021] Figure 5 Shown Figure 3 A schematic diagram of the three-dimensional structure of the sealing component of the sealing assembly;

[0022] Figure 6 A schematic cross-sectional view of an embodiment of a valve body assembly according to the present utility model is shown;

[0023] Figure 7 Shown Figure 6 A partial enlarged view of point A of the valve body assembly.

[0024] The above drawings include the following reference numerals:

[0025] 10. Sealing ring body; 11. Soft sealing surface; 111. First recess; 112. Second recess; 113. Sealing protrusion; 20. Positioning protrusion; 30. Axial protruding ring; 40. Transmission rod; 50. Sealing element. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0029] like Figure 1 and Figure 2 As shown, in this embodiment, the sealing structure is arranged at the valve port, and the sealing structure includes: a sealing ring body 10, having a soft sealing surface 11, and a first recess 111 and a second recess 112 are arranged at intervals on the soft sealing surface 11, the first recess 111 and the second recess 112 extend along the circumference of the sealing ring body 10, at least part of the first recess 111 extends into the valve port and contacts and cooperates with the outer end of the valve port, the second recess 112 is located outside the valve port, and a sealing protrusion 113 is formed between the first recess 111 and the second recess 112.

[0030] Using the technical solution of this embodiment, a sealing structure is provided at the valve port. The sealing structure includes a sealing ring body 10, which is provided with a flexible sealing surface 11. A first recess 111 and a second recess 112 are spaced apart on the flexible sealing surface 11. The first recess 111 and the second recess 112 both extend circumferentially along the sealing ring body 10. At least a portion of the first recess 111 extends into the valve port and engages with the valve opening. A sealing protrusion 113 is formed between the first recess 111 and the second recess 112. Due to this arrangement, when the sealing structure is sealing, at least a portion of the first recess 111 extends into the valve port, allowing the sealing protrusion 113 to deform and approach the end wall of the valve port to achieve a seal. The second recess 112 provides space for the deformation of the sealing protrusion 113, thereby facilitating its deformation. At the same time, when the first concave portion 111 contacts and cooperates with the valve port and the sealing protrusion 113 contacts and cooperates with the end wall of the valve port, the sealing effect can be improved. Therefore, the technical solution of this embodiment effectively solves the problem in the related art that the sealing ring is difficult to deform and thus affects the sealing effect.

[0031] Specifically, the sealing ring body 10 is provided with an insertion guide portion. The insertion guide portion is located at the end of the surface of the sealing ring body 10 provided with the soft sealing surface 11, and the insertion guide portion can achieve guidance. That is, the insertion guide portion is an annular block.

[0032] The shape of the outer periphery of the sealing structure is circular, and in other embodiments, it can also be elliptical, rectangular, triangular, pentagonal or other shapes.

[0033] It should be noted that, in this embodiment, the cross-sectional area of the flexible sealing surface 11 gradually increases in the direction from the first recess 111 to the second recess 112 .

[0034] like Figure 1 and Figure 2 As shown, in this embodiment, the curvature of the circle on which the cross-sectional outline of the first recess 111 lies is smaller than the curvature of the circle on which the cross-sectional outline of the second recess 112 lies, and the arc length of the cross-sectional outline of the first recess 111 is greater than the arc length of the cross-sectional outline of the second recess 112. This arrangement makes the curvature of the cross-sectional outline of the first recess 111 greater than that of the cross-sectional outline of the second recess 112, making it easier for the first recess 111 to be inserted into the valve port. At the same time, because the curvature of the cross-sectional outline of the second recess 112 is smaller, this not only improves the overall structural strength, but also allows the sealing ring body 10 to have a certain amount of deformation space.

[0035] like Figure 1 and Figure 2As shown, in this embodiment, the sealing structure further includes a positioning protrusion 20 provided on the inner side of the sealing ring body 10 and protruding toward the center line of the sealing ring body 10. The provision of the positioning protrusion 20 can achieve positioning, thereby making the position of the sealing structure more stable.

[0036] It should be noted that the sealing ring body is an annular structure, that is, the annular structure has a through hole, and the inner side of the sealing ring body 10 mentioned above refers to the inside of the through hole of the annular structure.

[0037] like Figure 1 and Figure 2 As shown, in this embodiment, the sealing structure further includes an axial protruding ring 30, which is provided at an end of the sealing ring body 10 away from the soft sealing surface 11. The provision of the axial protruding ring 30 can improve the structural strength of the sealing ring body 10 and prevent excessive deformation of the sealing ring body 10.

[0038] like Figure 1 and Figure 2 As shown, in this embodiment, the axial protruding ring 30 is located at the outer edge of the sealing ring body 10. The above arrangement can improve the structural strength of the edge of the sealing ring body 10.

[0039] According to a second aspect of the present application, a sealing assembly is provided, such as Figures 3 to 5 As shown, the sealing assembly of this embodiment includes: a transmission rod 40 and a sealing structure. The sealing structure is disposed on the transmission rod 40 and is the sealing structure described above. The sealing structure achieves sealing through the combined action of the first recess 111 and the sealing protrusion 113, thus ensuring a good sealing effect. Therefore, the sealing assembly having the above-described sealing structure also has the aforementioned advantages.

[0040] The transmission rod 40 is circumferentially provided with a mounting groove, a support ring, and a first stop ring. The support ring is positioned between the first stop ring and the mounting groove, with a gap between the outer wall of the support ring and the outer wall of the first stop ring. The sealing structure is mounted within the mounting groove. The positioning protrusion 20 abuts against the end wall of the support ring, and the sealing ring body 10 abuts against the side wall of the support ring. The positioning protrusion can be inserted into the mounting groove, which further stabilizes the position of the sealing structure.

[0041] Specifically, a first conical surface is provided on a side of the first stop ring away from the support ring.

[0042] The distance between the first tapered surface and the axis of the transmission rod 40 gradually increases. As the transmission rod 40 moves, the first tapered surface can guide and cooperate with the mating hole. That is, the distance between the center line of the first tapered surface and the axis of the hole gradually decreases, thereby adjusting the positional correspondence between the transmission rod 40 and the hole, so that the sealing structure can effectively seal the hole.

[0043] A second stop ring is further provided on the transmission rod 40 . The second stop ring is provided on a side of the mounting groove away from the first stop ring. The sealing structure is located between the first stop ring and the second stop ring.

[0044] like Figures 3 to 5 As shown, in this embodiment, the sealing assembly further includes a sealing member 50, which is disposed on the transmission rod 40 and spaced apart from the sealing structure. The arrangement of the sealing member 50 can achieve sealing of different valve ports.

[0045] Specifically, the transmission rod 40 is further provided with a third stop ring and a fourth stop ring. A second tapered surface is provided on the side of the third stop ring away from the third stop ring, with the distance between the second tapered surface and the axis of the transmission rod 40 gradually increasing. The provision of the second tapered surface further serves as a guide, thereby further ensuring the relative position of the transmission rod 40 and the hole portion is stable when engaged with the second tapered surface.

[0046] The seal 50 includes a base portion and an annular lip portion. The annular lip portion is connected to the outer periphery of the first end of the base portion. The distance between the annular lip portion and the axis of the base portion gradually increases from the first end to the second end of the base portion. The base portion improves the overall structural strength and positional stability of the sealing component. The provision of the annular lip portion enables sealing. During sealing, the annular lip portion is more easily deformed, meaning that the annular lip portion can more closely fit the sealed component, thereby improving the sealing effect.

[0047] According to a third aspect of the present application, a valve body assembly is provided, such as Figure 6 and Figure 7 As shown, it includes a sealing assembly, which is the above-mentioned sealing assembly. The above-mentioned sealing assembly has a good sealing effect, so the valve body assembly with the above-mentioned sealing assembly also has a good sealing effect.

[0048] According to a fourth aspect of the present application, a cover assembly is provided, comprising a valve assembly, wherein the valve assembly is the aforementioned valve assembly. The valve assembly can ensure a sealing effect, and thus the cover assembly having the aforementioned valve assembly also has the aforementioned advantages.

[0049] According to a fifth aspect of the present application, a cooking utensil is provided, comprising a cover assembly, wherein the cover assembly is the above-mentioned cover assembly. The valve assembly in the above-mentioned cover assembly can ensure a sealing effect, and thus the cooking utensil having the above-mentioned cover assembly also has the above-mentioned advantages.

[0050] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0051] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0052] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A sealing structure, provided at a valve port, characterized in that: The sealing structure comprises: A sealing ring body (10) has a soft sealing surface (11), and a first recess (111) and a second recess (112) are arranged at intervals on the soft sealing surface (11). The first recess (111) and the second recess (112) extend along the circumference of the sealing ring body (10), and at least a portion of the first recess (111) extends into the valve port and contacts and cooperates with the outer end of the valve port. The second recess (112) is located outside the valve port, and a sealing protrusion (113) is formed between the first recess (111) and the second recess (112).

2. The sealing structure according to claim 1, wherein: The curvature of the circle on which the contour line of the cross section of the first recess (111) lies is smaller than the curvature of the circle on which the contour line of the cross section of the second recess (112) lies, and / or the arc length of the contour line of the cross section of the first recess (111) lies is greater than the arc length of the contour line of the cross section of the second recess (112).

3. The sealing structure according to claim 1, wherein: The sealing structure further comprises a positioning protrusion (20) which is arranged on the inner side of the sealing ring body (10) and protrudes toward the center line of the sealing ring body (10).

4. The sealing structure according to claim 1, wherein: The sealing structure further comprises an axially protruding ring (30), and the axially protruding ring (30) is arranged at an end of the sealing ring body (10) away from the soft sealing surface (11).

5. The sealing structure according to claim 4, characterized in that: The axial protruding ring (30) is located at the outer edge of the sealing ring body (10).

6. A sealing assembly, characterized in that: include: Transmission rod (40); A sealing structure is provided on the transmission rod (40), wherein the sealing structure is the sealing structure according to any one of claims 1 to 5.

7. The sealing assembly according to claim 6, wherein: The sealing assembly further comprises a sealing member (50), wherein the sealing member (50) is arranged on the transmission rod (40) and spaced apart from the sealing structure.

8. A valve body assembly, comprising a sealing assembly, characterized in that: The sealing assembly is the sealing assembly according to claim 6 or 7.

9. A cover assembly, comprising a valve assembly, characterized in that: The valve body assembly is the valve body assembly according to claim 8.

10. A cooking utensil comprising a cover assembly, characterized in that: The cover assembly is the cover assembly according to claim 9.

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