CN211117561U

CN211117561U - Corrugated gasket and sealing structure

Info

Publication number: CN211117561U
Application number: CN201921624864.5U
Authority: CN
Inventors: 滕帅
Original assignee: Weichai Power Co Ltd
Current assignee: Weichai Power Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-07-28
Anticipated expiration: 2029-09-27

Abstract

The utility model belongs to the technical field of the assembly, concretely relates to ripple gasket and seal structure. The utility model discloses a ripple gasket includes: the gasket body is provided with a connecting hole for fixing a flange; the convex rib comprises a convex rib body, an extension section is arranged on the convex rib body, and the extension section in the middle of the convex rib body extends along the direction far away from the connecting hole. Be provided with the extension section on the protruding muscle body, the direction of keeping away from the connecting hole is extended along the extension section, and ripple gasket compensation ability increases along with the increase of the width of protruding muscle, consequently by the connecting hole in the middle of the gasket body to the position direction of keeping away from the flange, protruding muscle resilience compensation volume can increase gradually to produce bigger compensation ability in the great position of sealed flange deformation, guarantee that seal structure is effective and long-term sealed.

Description

Corrugated gasket and sealing structure

Technical Field

The utility model belongs to the technical field of the assembly, concretely relates to ripple gasket and seal structure.

Background

The sealing corrugation is a structure of a convex rib manufactured on the metal gasket through a stamping process, compression deformation is generated under the effect of the bolt force pressing the sealing flange, larger contact pressure is formed, sealing is achieved through the structure, certain resilience performance can be achieved through the convex rib when the sealing flange deforms at a high temperature, and good sealing is achieved through close contact with the sealing flange.

At present, the sealing corrugation width of the corrugated gasket is consistent, and the sealing flange is pressed tightly through bolt force to be compressed and deformed to generate initial sealing pressure to realize sealing. During the operation of the engine, the sealing structure is influenced by factors such as internal medium pressure, cold and hot alternating load, bolt axial force attenuation and the like, the sealing flange is overturned or warped, the flange at the middle position of the bolt of the sealing flange is overturned or warped, and the flange is more obviously overturned or warped, so that the sealing flange is separated from the corrugated gasket to a certain extent. When the sealing flange deforms, the rebound compensation capacity of the gasket at the position with larger deformation is insufficient, so that sealing medium leakage is caused.

When the sealing flange deforms, the resilience compensation capacity of the gasket at the position with larger deformation is insufficient, so that sealing medium leakage is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving current ripple gasket at least, when sealing flange warp, it is not enough to warp great position gasket resilience compensation ability to lead to the problem of sealing medium leakage. The purpose is realized by the following technical scheme:

the utility model discloses a first aspect provides a ripple gasket, the ripple gasket includes:

the gasket body is provided with a connecting hole for fixing a flange; and

the convex rib comprises a convex rib body, an extension section is arranged on the convex rib body and is positioned in the middle of the convex rib body, and the extension section extends along the direction away from the connecting hole.

According to the utility model discloses an among the corrugated gasket, be provided with the extension section on the protruding muscle body, be located in the middle of the protruding muscle body the extension section is along keeping away from the direction of connecting hole is extended, and corrugated gasket compensation ability increases along with the increase of the width of protruding muscle, consequently by connecting hole in the middle of the gasket body to the position direction of keeping away from the flange, protruding muscle resilience compensation volume can increase gradually to produce bigger compensation ability in the great position of sealing flange deformation, guarantee that seal structure is effective and long-term sealed.

In addition, according to the utility model discloses a corrugated gasket still can have following additional technical characterstic:

in some embodiments of the present invention, the extension section includes an extension body extending in a direction away from the connection hole.

In some embodiments of the present invention, the ribs are multi-layered, and a space is formed between adjacent ribs;

the extension section comprises an extension body, the extension body is arranged at the end part of the convex rib body, and the end parts of the extension bodies between the adjacent convex rib bodies are connected.

In some embodiments of the present invention, the extension section further comprises an edge body disposed at the end of the extension body, and the edge body is connected to the adjacent rib body.

In some embodiments of the invention, the length of the edge body is less than the length of the extension body.

In some embodiments of the invention, the length of the extension is 2 mm.

In some embodiments of the present invention, the ribs are integrally formed with the spacer body.

In some embodiments of the present invention, the gasket body is made of metal.

The utility model discloses an on the other hand has still provided a seal structure, seal structure has above-mentioned arbitrary ripple gasket.

In some embodiments of the present invention, the gasket further comprises a flange, and the flange is fixed on the gasket body by screws.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

fig. 1 schematically shows a front structural view of a corrugated gasket according to an embodiment of the invention;

FIG. 2 schematically illustrates a cross-sectional view A-A of FIG. 1;

FIG. 3 schematically shows an enlarged partial view of I in FIG. 2;

fig. 4 schematically shows a partial enlarged view of ii in fig. 2.

The reference numerals in the drawings denote the following:

1: an edge body; 2: an extension body; 3: the convex rib body: 4: a spacer body; 5: a fixing hole; 6: and (5) convex ribs.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The utility model discloses a first aspect provides a ripple gasket, and this ripple gasket is used for improving the sealed effect of flange.

As shown in fig. 1 to 4, the corrugated gasket in the present embodiment includes: the gasket body 4 and the convex rib 6 are arranged, and a connecting hole 5 for fixing a flange is arranged on the connecting hole on the gasket body 4; the convex rib 6 comprises a convex rib body 3, an extension section is arranged on the convex rib body 3 in the middle of the convex rib body 3, and the extension section extends along the direction far away from the connecting hole.

The middle of the gasket body 4 is provided with a connecting hole, two sides of the gasket body 4 are respectively provided with two fixing holes 5, and the fixing holes are used for fixing bolts.

Be provided with the extension section on the rib body 3, be located the extension section in the middle of the rib body 3 extends along the direction of keeping away from the connecting hole, and corrugated gasket compensation ability increases along with the increase of the width of rib 6, and the width on rib body 3 middle part is bigger than the width on both sides promptly. The compensation of the resilience of the bead 6 can thus be increased gradually from the connection opening in the middle of the gasket body 4 to a position remote from the flange, so that a greater compensation capacity is produced at the location of greater deformation of the sealing flange.

In some embodiments of the present invention, the extension section includes an extension body 2, and the extension body 2 extends in a direction away from the connection hole.

Extension body 2 extends along the direction of keeping away from the connecting hole, and the width of the protruding muscle 6 of ripple gasket reduces grow gradually along with bolt axial force, and its resilience compensation ability crescent thereupon, when the flange warp, protruding muscle 6 can warp great position at the flange and realize effective sealing, prevents sealing medium's leakage, promotes the sealed long-term reliability of ripple gasket.

In some embodiments of the present invention, the ribs 3 are multi-layered, and a space is formed between adjacent ribs 3;

the extension section comprises extension bodies 2, the extension bodies 2 are arranged at the ends of the convex rib bodies 3, and the end parts of the extension bodies 2 between the adjacent convex rib bodies 3 are connected.

The convex rib body 3 is of multiple layers, so that the sealing effect is better.

In some embodiments of the present invention, the extension section further includes an edge body 1 disposed at the end of the extension body 2, and the adjacent ribs 3 are connected by the edge body 1.

The convex rib bodies 3 are multilayer, and the multilayer convex rib bodies 3 are connected through the edge bodies 1.

In some embodiments of the present invention, the length of the edge body 1 is less than the length of the extension body 2. In order to achieve a better sealing effect, the length of the edge body 1 is smaller than the length of the extension body 2.

In some embodiments of the present invention, the length of the extension body 2 is 2 mm.

The width of the existing convex rib 6 is consistent, the length W of the extending body 2 positioned in the middle of the convex rib body 3 is 2mm, and the length W of the extending bodies 2 on the other two sides is only 1 mm. The height H of the extension bodies 2 on both sides and the height H of the extension body 2 in the middle are both 0.3 mm. The flange overturning or warping deformation at the middle position of the gasket body 4 can be more remarkable, at the moment, the flange is separated from the corrugated gasket to a certain extent, the corrugated gasket is rebounded by the compressed convex rib 6, and the separation of the sealing flange and the corrugated gasket is compensated. The corrugated gasket compensation capacity is increased along with the increase of the width of the sealing convex rib 6, so that the compensation amount of the convex rib 6 can be gradually increased from the connecting hole to the position far away from the connecting hole 5, namely from the middle to the up-down direction in the figure 1, thereby generating larger compensation capacity at the larger deformation position of the sealing flange and ensuring effective and long-term sealing of the sealing structure.

The utility model discloses an in some embodiments, protruding muscle 6 and the 4 integrated into one piece of gasket body, the material is the metal, and

gasket body

4 and 6 multiplicable abrasionproof coatings in surface of protruding muscle realize little sealed and abrasionproof effect.

In some embodiments of the present invention, the material of the gasket body 4 is metal.

The utility model discloses an on the other hand has still provided a seal structure, and seal structure has the ripple gasket of above-mentioned arbitrary item.

In some embodiments of the present invention, the gasket further comprises a flange, and the flange is fixed on the gasket body 4 by screws. The screws are sequentially arranged in the fixing holes 5 of the gasket bodies 4 through the flanges.

To sum up, the utility model discloses an among the corrugated gasket, be located be provided with the extension section on the protruding muscle body 3 in the middle of the protruding muscle body 3, the extension section extends along the direction of keeping away from the connecting hole, and corrugated gasket compensation ability increases along with the increase of the width of protruding muscle 6, consequently by connecting hole in the middle of the gasket body 4 to the position direction of keeping away from the flange, 6 resilience compensation capacities of protruding muscle can increase gradually to produce bigger compensation ability in the great position of sealing flange deformation, guarantee that seal structure is effective and long-term sealed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A corrugated gasket, comprising:

the gasket body is provided with a connecting hole for fixing a flange; and

2. The corrugated gasket as set forth in claim 1 wherein said extension segment includes an extension body extending in a direction away from said connection hole.

3. The corrugated gasket as set forth in claim 1 wherein said bead bodies are multilayered, with spaces formed between adjacent ones of said bead bodies;

4. The corrugated gasket as set forth in claim 3 wherein said extension further comprises edge bodies disposed at ends of said extension bodies, adjacent ones of said bead bodies being connected by said edge bodies.

5. The corrugated gasket as set forth in claim 4 wherein said edge body has a length less than a length of said extension body.

6. The corrugated gasket as claimed in claim 2 or 3, wherein the length of the extension body is 2 mm.

7. The corrugated gasket as set forth in claim 1 wherein said ribs are integrally formed with the gasket body.

8. The corrugated gasket as set forth in claim 1 wherein said gasket body is of metal.

9. A sealing structure characterized by having a corrugated gasket according to any one of claims 1 to 8.

10. The seal structure of claim 9, further comprising a flange, the flange being secured to the spacer body by screws.