CN217152969U

CN217152969U - Sealing structure

Info

Publication number: CN217152969U
Application number: CN202122165398.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Liaoning Haoyu Machinery Manufacturing Co ltd
Current assignee: Liaoning Haoyu Machinery Manufacturing Co ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2022-08-09
Anticipated expiration: 2031-09-08

Abstract

The utility model discloses a seal structure relates to the technical field that the pipeline connects sealedly. The combined sealing ring comprises an inner ring and an outer ring which are connected into a whole; the outer ring and the inner ring are respectively a rigid ring and a rubber ring, or respectively a rubber ring and a rigid ring; the sealing structure comprises two joints which are butted, and the combined sealing ring is arranged between the two joints; through setting up the rigidity ring, the rubber ring is by the back deformation that extrudees, and the rigidity ring can be extruded equally to the rubber ring, but because the rigidity ring can't take place to warp, so just make the rubber ring in the deformation that other directions are more, form the effect of "compensation", when the pipeline exists not to the well under the partial condition of pressure, still have sealed effect.

Description

Sealing structure

Technical Field

The utility model relates to a technical field that the pipeline joint is sealed specifically is a seal structure.

Background

There are two main types of joint seals for pipelines: one is a gasket seal and the other is a spherical seal. The sealing gasket is a flat gasket sealing ring arranged between the two joints, and the sealing gasket is pressed to be deviated or loosened to cause leakage of a sealing surface due to misalignment of pipelines and pipeline vibration caused in equipment operation in actual use. The spherical joint is high in requirement on the neutral of a pipeline in sealing, leakage is caused by poor spherical joint fit if the neutral is poor, in addition, permanent deformation can be generated at the spherical seal after the spherical seal is used for a period of time due to the fact that the spherical seal is hard contact seal, and leakage of a sealing surface can be caused by poor fit when the spherical joint is installed and used again.

In conclusion, the two sealing forms have certain defects, high installation requirements and short service life.

SUMMERY OF THE UTILITY MODEL

The utility model provides a combined sealing ring, which comprises an inner ring and an outer ring which are connected into a whole; the outer ring and the inner ring are respectively a rigid ring and a rubber ring, or respectively a rubber ring and a rigid ring.

The utility model provides a sealing structure, including two joints that dock mutually, above-mentioned combination sealing washer sets up in two connect between.

The sealing structure is further provided with: the joint is provided with a clamping groove or a convex ring which is matched with the combined sealing ring for limiting.

The utility model has the advantages of:

1. the rubber ring is used for sealing and the rigid ring is used for supporting and positioning, and the rubber ring cannot be destructively compressed and deformed due to the support of the support ring;

2. after the rubber ring is extruded and deformed, the rigid ring can be extruded, but the rigid ring cannot deform, so that the rubber ring deforms more in other directions to form a compensation effect, and the sealing effect is still achieved under the condition that a pipeline has no medium pressure deviation.

Drawings

Figure 1 shows a schematic structural view of one embodiment of the middle seal structure of the present invention

Reference numerals: 1. a rubber ring; 2. a rigid ring; 3. and (4) a joint.

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.

Example 1

Referring to fig. 1, the present embodiment provides a combined sealing ring, which includes an inner ring and an outer ring connected as a whole; the outer ring and the inner ring are respectively a rigid ring 2 and a rubber ring 1, or respectively the rubber ring 1 and the rigid ring 2. The rigid ring 2 is made of steel materials, and the rubber ring 1 and the rigid ring 2 are connected into a whole by adopting a vulcanization process. The attached drawings particularly show a combined sealing ring with an inner ring of a rubber ring 1 and an outer ring of a rigid ring 2.

The combined sealing ring of the embodiment is used for sealing between two joints 3, and is consistent with the use purpose of a plane sealing gasket in the prior art, but the combined sealing gasket of the embodiment has more effects: 1. the rubber ring 1 is used for sealing and the rigid ring 2 is used for supporting and positioning, and the rubber ring 1 cannot be destructively compressed and deformed due to the support of the supporting ring; 2. after the rubber ring 1 is extruded and deformed, the rigid ring 2 can be extruded, but the rigid ring 2 cannot be deformed, so that the rubber ring 1 is deformed in other directions more, a compensation effect is formed, and a sealing effect is still achieved under the condition that a pipeline has no medium pressure deviation.

Example 2

Referring to fig. 1, the present embodiment proposes a sealing structure comprising two joints 3 butted together, and the combined sealing ring in the above embodiment 1 is disposed between the two joints 3. The joint 3 is provided with a clamping groove or a convex ring which is matched with the sealing combined ring for limiting.

In fig. 1, it is shown in detail that one of the joints 3 is provided with a protruding ring for catching the inner ring of the composite seal ring, facilitating alignment of the position where the composite seal ring is installed.

While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention, and particularly, various features shown in the various embodiments may be combined in any combination as long as there is no structural conflict. The present invention is not intended to be limited to the particular embodiments disclosed herein, but rather to include all embodiments falling within the scope of the appended claims.

In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like, which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that a device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "comprises," "comprising," or any other similar term are intended to cover a non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, article, or apparatus.

So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A sealing structure comprising two joints (3) that are butted together, characterized in that: the sealing ring comprises a combined sealing ring, wherein the combined sealing ring comprises an inner ring and an outer ring which are connected into a whole; the outer ring and the inner ring are respectively a rigid ring (2) and a rubber ring (1), or respectively a rubber ring (1) and a rigid ring (2); the combined sealing ring is arranged between the two joints (3).

2. The seal structure of claim 1, wherein: the joint (3) is provided with a clamping groove or a convex ring which is matched with the combined sealing ring for limiting.