CN215634933U - Sealing assembly - Google Patents

Abstract

The utility model relates to a sealing ring assembly and a sealing assembly with the same, belonging to the technical field of sealing elements and comprising a flexible sealing ring and a hard framework; the hard framework is arranged in an annular shape, and the flexible sealing ring is coated on the inner ring of the hard framework in a vulcanization process mode. The utility model has the advantages of simultaneous sealing in the axial direction and the radial direction of a narrow space, better rigidity, easy installation and distortion prevention.

Description

Sealing assembly

Technical Field

The utility model relates to the technical field of sealing elements, in particular to a sealing assembly.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

At present, the common rubber part is sealed in an axial direction or a radial direction, and the sealing is ensured by controlling the compression ratio of rubber. The sealing of two contact surfaces is mainly realized by pure axial sealing and radial sealing, and when a plurality of axial and radial contact surfaces are required to be simultaneously sealed in a narrow space (for example, sealing at a cylinder head cover, an ignition coil bushing and a cover plate of a gas engine), the O-shaped ring is high in sealing filling rate, easy to damage the O-shaped ring to cause sealing failure, and the O-shaped ring is not properly assembled and easy to twist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to at least solve the problems of simultaneous sealing in the axial direction and the radial direction in a narrow space, better rigidity, easy installation and distortion prevention. The purpose is realized by the following technical scheme:

the utility model provides a sealing ring assembly in a first aspect, which comprises a flexible sealing ring and a hard framework; the hard framework is arranged in an annular shape, and the flexible sealing ring is coated on the inner ring of the hard framework in a vulcanization process mode.

In addition, the sealing ring assembly according to the present invention may further have the following additional technical features:

in some embodiments of the utility model, the hard skeleton has an outer diameter greater than an outer diameter of the flexible sealing ring.

In some embodiments of the utility model, the flexible sealing ring is a rubber ring.

In some embodiments of the utility model, the seal ring assembly is a one-shot structure.

The utility model also provides a sealing assembly, which comprises a cover cap, a cover plate, a sealing shaft and the sealing ring assembly;

the cover cap is a box body with an opening at the bottom, and the top of the cover cap is concavely provided with a ring groove;

the sealing shaft is in a circular tube shape with openings at two ends and penetrates through the annular groove to be inserted into the cover cap, and one end of the sealing shaft close to the annular groove is exposed out of the top end surface of the cover cap; the sealing ring component is sleeved on the sealing shaft and is arranged in the annular groove;

the cover plate is plate-shaped, a through hole is formed in the cover plate, the cover plate is sleeved at the top end of the sealing shaft through the through hole and covers the top end of the cover cap.

In some embodiments of the present invention, wedge surfaces are disposed at both ports of the seal shaft.

In some embodiments of the utility model, the seal ring assembly is an interference fit with the seal shaft.

In some embodiments of the utility model, the edge of the aperture of the perforation on the side facing the cover is provided with an arc-shaped transition.

In some embodiments of the utility model, the seal ring assembly has a thickness dimension greater than a depth dimension of the ring groove.

The utility model has the beneficial effects that:

(1) according to the utility model, the inner ring of the hard framework is vulcanized and coated with the flexible sealing ring, the flexible sealing ring is radially and interference-sleeved on the sealing shaft, and the radial compression amount of rubber is controlled by the size of a gap between the hard framework in the flexible sealing ring and the sealing shaft, so that radial sealing is ensured, and the follow-up property is good; the axial height dimension of the flexible sealing ring is controlled to ensure the axial compression amount and ensure the axial sealing;

(2) the rigid framework is arranged, so that the rigidity of the framework can be enhanced, the installation is easy, and the torsion is prevented;

(3) the utility model can realize the simultaneous sealing requirements of axial direction and radial direction in a narrow space;

(4) the utility model has the advantages of simple structure, lower cost, stronger universality and better market prospect.

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 utility model. Also, like parts are designated by like reference numerals throughout the drawings. In the drawings:

FIG. 1 is a schematic view, partially in section, of a seal ring assembly according to the present application;

FIG. 2 is a schematic cross-sectional view of the present application;

fig. 3 is a schematic structural view mainly highlighting deformation of the seal ring assembly after cover plate compression according to the present application.

Reference numerals:

1. a seal ring assembly; 10. a flexible sealing ring; 11. a hard skeleton; 2. a cover; 20. a ring groove; 3. a cover plate; 30. perforating; 4. a seal shaft; 40. a wedge-shaped face.

Detailed Description

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.

As shown in fig. 1, according to an embodiment of the present invention, there is provided a seal ring assembly including a flexible seal ring 10 and a hard skeleton 11. The hard skeleton 11 is arranged in a ring shape, and preferably, the hard skeleton 11 is a metal skeleton. The flexible sealing ring 10 is made of rubber, the flexible sealing ring 10 is coated on the inner ring of the hard framework 11 in an annular ring body structure in a vulcanization process mode, the cross section of the flexible sealing ring 10 is polygonal, the thickness dimension of the outer ring of the flexible sealing ring 10 is larger than that of the inner ring, the elasticity of the rubber can be fully utilized to realize sealing and dimension adjustment, and the sealing reliability is improved.

Since the outer diameter of the hard frame 11 is larger than the outer diameter of the flexible seal ring 10, the outer ring of the hard frame 11 is exposed from the peripheral surface of the outer ring of the flexible seal ring 10.

Meanwhile, due to the arrangement of the hard framework 11, the overall rigidity of the sealing ring assembly 1 can be improved, and the sealing ring assembly 1 can be effectively prevented from being distorted in the installation and use processes.

In specific implementation, the flexible sealing ring 10 and the hard framework 11 are independently designed, and then the flexible sealing ring 10 is independently subjected to vulcanization processing on the hard framework 11, so that the flexible sealing ring 10 and the hard framework 11 are formed in one step, and meanwhile, the vulcanization processing technology is easier to realize. And the hard framework 11 can control the radial compression amount of the flexible sealing ring 10, so that the radial sealing is ensured and the follow-up property is good. The seal ring component 1 is used as a universal part, and the universality of the seal ring component 1 is improved.

The utility model also provides a sealing assembly for sealing by adopting the sealing ring assembly 1, wherein the sealing ring assembly 1 is used for sealing a sealing space formed by the sealing assembly, and can realize axial sealing and radial sealing. As shown in fig. 2, the sealing assembly includes a cover cap 2, a cover plate 3, a sealing shaft 4 and the sealing ring assembly 1, the cover cap 2 is a box body with an open bottom, a ring groove 20 is concavely formed in the top of the cover cap 2, and a through hole is formed in the ring groove 20 and is communicated with the inside of the cover cap 2.

As shown in fig. 2, the sealing shaft 4 is in the shape of a circular tube with two open ends and is inserted into the cap 2 through the ring groove 20, and one end of the sealing shaft 4 near the top end of the cap 2 is exposed out of the top end surface of the cap 2. When the sealing ring component 1 is assembled, the sealing ring component 1 is sleeved on the sealing shaft 4 from the top end of the sealing shaft 4 to the bottom and is arranged in the annular groove 20, and the thickness dimension of the sealing ring component 1 is larger than the depth dimension of the annular groove 20. Further, sealing ring subassembly 1 and sealed 4 interference fit of axle realize the sealed between sealing ring subassembly 1 and the sealed axle 4. And because of the setting of stereoplasm skeleton 11, so when installing sealing washer subassembly 1, the distortion of sealing washer subassembly 1 can not appear and leads to the problem of sealed inefficacy.

As shown in fig. 2 and 3, the cover plate 3 is plate-shaped, and a through hole 30 for passing through the cover plate 3 in a sealing manner is formed. The cover plate 3 is sleeved on the top end of the sealing shaft 4 through a through hole 30, covers the top end of the cover cap 2 and is fixed on the top surface of the cover cap 2 through a bolt. When fixed apron 3, because the thickness dimension of sealing washer subassembly 1 is greater than the depth dimension of annular 20, so when apron 3 pushes down, can give sealing washer subassembly 1 pressure, because the elastic deformation of sealing washer subassembly 1 interference cover on sealed axle 4 and flexible sealing washer 10, so sealing washer subassembly 1 can be through sealed axle 4 and the flexible sealing washer 10 of stereoplasm skeleton 11 control radial compression volume and the axial compression volume in annular 20, and stereoplasm skeleton 11 can guarantee that radial seal and follow-up nature are good, can realize the axial in the narrow space, radial while is sealed.

As shown in fig. 2, further, wedge surfaces 40 are provided at both ends of the seal shaft 4. The wedge-shaped surface 40 reduces the outer diameter of the sealing shaft 4, plays a guiding role when the bottom end of the sealing shaft 4 is inserted into the ring groove 20, and can ensure that the sealing shaft 4 is accurately and quickly inserted into the ring groove 20; the wedge-shaped surface 40 is arranged at the top end of the sealing shaft 4 to guide the sealing ring assembly 1 and the cover plate 3 to be sleeved from the top, so that the sealing ring assembly 1 and the cover plate 3 can be guided to be quickly sleeved on the sealing shaft 4, the operation is more convenient in the installation process, and the working efficiency is improved.

Further, the edge of the aperture on the side of the cover plate 3 facing the cover 2 is provided with a curved transition of the perforations 30. The aperture size of the through hole 30 is increased due to the arc transition, and the outer diameter of the sealing shaft 4 is reduced due to the wedge-shaped surface 40, so that the cover plate 3 can be accurately and quickly sleeved on the sealing shaft 4, the operation is more convenient in the installation process, and the working efficiency is improved.

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 are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. A seal assembly, characterized by: comprises a cover cap (2), a cover plate (3), a sealing shaft (4) and a sealing ring component (1);

the cover cap (2) is a box body with an opening at the bottom, and a ring groove (20) is concavely arranged on the top of the cover cap (2);

the sealing shaft (4) is in a circular tube shape with openings at two ends and penetrates through the ring groove (20) to be inserted into the cover cap (2), and one end, close to the ring groove (20), of the sealing shaft (4) is exposed out of the top end surface of the cover cap (2); the sealing ring component (1) is sleeved on the sealing shaft (4) and is arranged in the annular groove (20);

the cover plate (3) is plate-shaped, a through hole (30) is formed in the cover plate (3), the cover plate (3) is sleeved at the top end of the sealing shaft (4) through the through hole (30) and covers the top end of the cover cap (2);

the sealing ring component (1) comprises a flexible sealing ring (10) and a hard framework (11); the hard framework (11) is arranged in an annular shape, and the flexible sealing ring (10) is coated on the inner ring of the hard framework (11) in a vulcanization process mode.

2. The seal assembly of claim 1, wherein: the outer diameter of the hard framework (11) is larger than that of the flexible sealing ring (10).

3. The seal assembly of claim 1, wherein: the flexible sealing ring (10) is a rubber ring.

4. The seal assembly of claim 1, wherein: the sealing ring component (1) is of a one-step forming structure.

5. The seal assembly of claim 1, wherein: wedge surfaces (40) are arranged at two ports of the sealing shaft (4).

6. The seal assembly of claim 1, wherein: the sealing ring component (1) is in interference fit with the sealing shaft (4).

7. The seal assembly of claim 1, wherein: the edge of the through hole (30) facing the hole at one side of the cover (2) is provided with an arc transition part.

8. The seal assembly of claim 1, wherein: the thickness dimension of the sealing ring component (1) is larger than the depth dimension of the ring groove (20).

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