CN215763261U - Pipeline expandable connection sealing ring - Google Patents

Abstract

The utility model discloses a pipeline expandable connecting sealing ring which comprises a sealing ring, wherein a water-swellable rubber layer is in clearance fit with the outer side of the sealing ring, and the inner wall of an annular clamping block is fixedly connected with the outer wall of the sealing ring. The utility model relates to the technical field of sealing rings, and through the matching of an annular clamping block, an annular groove and a water-swelling rubber layer, if the water-swelling rubber layer is aged, a user can pull the water-swelling rubber layer to be taken down from the annular clamping block, and when the water-swelling rubber layer is installed, the water-swelling rubber layer can be sleeved on the outer wall of the sealing ring, so that the annular groove and the annular clamping block can be clamped with each other.

Description

Pipeline expandable connection sealing ring

Technical Field

The utility model relates to the technical field of sealing rings, in particular to a pipeline expandable connecting sealing ring.

Background

The sealing ring is an annular sealing element with a notch, the annular sealing element is placed in an annular groove of the sleeve, the sleeve and the shaft rotate together, the sealing ring is tightly pressed on the inner hole wall of the static element by the elasticity of the pressed notch, the sealing ring can play a role of sealing, all contact surfaces need to be hardened and polished, the sealing ring is made of rubber and metal materials at present, and the sealing ring can be connected in an expandable mode in a pipeline connection mode.

The existing device is to place the sealing ring at the contact position of two pipelines to be connected, so that the leakage of the contact position of the pipelines is avoided.

But current device meets water inflation rubber and absorbs water the inflation back when carrying out the work, and ageing condition can appear in long-time inflation, just need take off whole sealing ring this moment and change, has also increased use cost when changing the trouble, is unfavorable for promoting and using.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a pipeline expandable connecting sealing ring, which solves the problems that after water-swellable rubber absorbs water and swells in the operation of the existing device, the existing device is aged due to long-time swelling, the whole sealing ring needs to be taken down for replacement, the replacement is troublesome, the use cost is increased, and the popularization and the use are not facilitated.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a pipeline expandable connection sealing ring, includes the sealing ring, the outside clearance fit of sealing ring has water-swelling rubber layer, the annular groove has been seted up to the inboard of water-swelling rubber, the inboard clearance fit of annular groove has annular fixture block, the inner wall of annular fixture block and the outer wall fixed connection of sealing ring.

Preferably, a plurality of metal rings are fixedly connected to the outer side of the inner portion of the sealing ring, and a plurality of metal wires are fixedly connected to the middle portion of the inner side of the sealing ring.

Preferably, a plurality of the metal wire is distributed in an annular equidistant mode by taking the circle center of the sealing ring as a reference, and a plurality of the metal rings are distributed in the sealing ring in an equidistant mode.

Preferably, the outer wall of the sealing ring is provided with a waterproof layer, and the outer wall of the waterproof layer is provided with a corrosion-resistant layer.

Preferably, the inner ring of the sealing ring is provided with wear-resistant rubber.

Advantageous effects

The utility model provides a sealing ring for expandable connection of pipelines. The method has the following beneficial effects: this pipeline expandable coupling sealing ring passes through the annular fixture block, annular groove and the cooperation between the water-swelling rubber layer, if the water-swelling rubber layer condition of ageing appears in the water-swelling, the user can stimulate earlier and take off from the annular fixture block in the water-swelling rubber layer of water-swelling, when the water-swelling rubber layer is met in the installation, can cup joint water-swelling rubber layer at the outer wall of sealing ring, make annular groove and annular fixture block looks joint can, solved current device and meet the water-swelling rubber water-swelling back of carrying out the during operation, ageing condition can appear in long-time inflation, just need take off whole sealing ring and change this moment, the problem of use cost has also been increased when changing the trouble, be favorable to promoting and using.

Through the sealing ring, the cooperation between metal loop and the waterproof layer, install waterproof layer and corrosion-resistant layer respectively in the outside of sealing ring, wherein the main effect on corrosion-resistant layer is for preventing that the sealing ring from receiving the erosion of steam, if the damaged condition appears in corrosion-resistant layer, inside waterproof layer also can prevent that the sealing ring from receiving the erosion of steam, still install wear-resisting rubber in the inboard of sealing ring, the inside of having prevented the sealing ring from receiving the damage, and inside metal loop and wire have improved intensity for the sealing ring, avoid warping.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is a schematic structural view of the annular fixture block, the annular groove and the water-swellable rubber layer in FIG. 2;

fig. 4 is a schematic structural view of the sealing ring, the metal ring and the waterproof layer in fig. 2.

In the figure: 1. the sealing ring comprises a sealing ring body, 2, a metal ring, 3, a metal wire, 4, a waterproof layer, 5, a corrosion-resistant layer, 6, an annular clamping block, 7, a water-swelling rubber layer, 8, an annular groove, 9 and wear-resistant rubber.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The following working principles, detailed connecting means thereof, and the following main descriptions of the working principles and processes are well known in the art, and will be referred to by those skilled in the art for the specific connection and operation sequence of the components in this application.

The first embodiment is as follows: as can be seen from fig. 1-3, a pipe expandable connection sealing ring comprises a sealing ring 1, a water-swellable rubber layer 7 is in clearance fit with the outer side of the sealing ring 1, the water-swellable rubber layer 7 is water-swellable waterproof rubber prepared from water-absorbent materials such as water-soluble polyurethane prepolymer and sodium acrylate high-molecular water-absorbent resin and synthetic rubbers such as natural rubber and chloroprene rubber, an annular groove 8 is formed in the inner side of the water-swellable rubber layer 7, an annular clamping block 6 is in clearance fit with the inner side of the annular groove 8, and the inner wall of the annular clamping block 6 is fixedly connected with the outer wall of the sealing ring 1;

in the specific implementation process, the problems that the existing device is aged after the water-swellable rubber layer 7 absorbs water and swells after working due to the fact that the annular clamping block 6, the annular groove 8 and the water-swellable rubber layer 7 are matched, the whole sealing ring 1 needs to be taken down for replacement at the moment, replacement is troublesome, and the use cost is increased are solved, and popularization and use are facilitated;

specifically, when using this pipeline expandable connection sealing ring, if meet the ageing condition in water inflation rubber layer 7 appearance, the user can stimulate earlier and meet water inflation rubber layer 7 and take off from annular fixture block 6, when installing water inflation rubber layer 7, can cup joint water inflation rubber layer 7 at the outer wall of sealing ring 1, make annular groove 8 and annular fixture block 6 looks joint can.

Example two: as can be seen from fig. 1, 2 and 4, a plurality of metal rings 2 are fixedly connected to the inner outer side of a sealing ring 1, and a plurality of metal wires 3 are fixedly connected to the middle part of the inner side of the sealing ring 1;

in particular embodiments, it is worth noting that;

furthermore, the plurality of metal wires 3 are distributed in an annular shape at equal intervals by taking the circle center of the sealing ring 1 as a reference, and the plurality of metal rings 2 are distributed in the sealing ring 1 at equal intervals;

in the specific implementation process, it is worth particularly pointing out that the metal wires 3 and the metal rings 2 are uniformly distributed, so that the strength of each part of the sealing ring 1 is ensured to be uniform;

furthermore, the outer wall of the sealing ring 1 is provided with a waterproof layer 4, the outer wall of the waterproof layer 4 is provided with a corrosion-resistant layer 5, and the materials used in the sealing ring 1 are not specifically limited, so that the described working effect can be met, and redundant description is omitted;

in the specific implementation process, it is worth particularly pointing out that the corrosion-resistant layer 5 in the device mainly functions to prevent the sealing ring from being corroded by water vapor, and if the corrosion-resistant layer 5 is damaged, the inner waterproof layer 4 also prevents the sealing ring 1 from being corroded by water vapor;

further, the inner ring of the sealing ring 1 is provided with wear-resistant rubber 9;

in the specific implementation, it is worth noting in particular that the wear-resistant rubber 9 prevents the inside of the sealing ring 1 from being damaged;

specifically, on the basis of the first embodiment, the waterproof layer 4 and the corrosion-resistant layer 5 are respectively installed on the outer side of the sealing ring 1, wherein the corrosion-resistant layer 5 mainly acts on preventing the sealing ring from being corroded by water vapor, if the corrosion-resistant layer 5 is damaged, the waterproof layer 4 inside also can prevent the sealing ring 1 from being corroded by water vapor, the wear-resistant rubber 9 is further installed on the inner side of the sealing ring 1, the inside of the sealing ring 1 is prevented from being damaged, and the metal ring 2 and the metal wire 3 inside improve the strength of the sealing ring and avoid deformation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, 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, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A sealing ring for expandable connection of pipes, comprising a sealing ring (1), characterized in that: the outside clearance fit of sealing ring (1) has water-swelling rubber layer (7), annular groove (8) have been seted up to the inboard of water-swelling rubber (7), the inboard clearance fit of annular groove (8) has annular fixture block (6), the inner wall of annular fixture block (6) and the outer wall fixed connection of sealing ring (1).

2. The sealing ring for expandable joints in pipes according to claim 1, wherein: the inside outside rigid coupling of sealing ring (1) has a plurality of becket (2), the inboard middle part rigid coupling of sealing ring (1) has a plurality of wires (3).

3. The sealing ring for expandable joints in pipes according to claim 1, wherein: a plurality of wire (3) use the centre of a circle of sealing ring (1) as the benchmark and are annular equidistance and distribute, a plurality of metal ring (2) are in the inside equidistance distribution of sealing ring (1).

4. The sealing ring for expandable joints in pipes according to claim 1, wherein: the outer wall of the sealing ring (1) is provided with a waterproof layer (4), and the outer wall of the waterproof layer (4) is provided with a corrosion-resistant layer (5).

5. The sealing ring for expandable joints in pipes according to claim 1, wherein: and the inner ring of the sealing ring (1) is provided with wear-resistant rubber (9).

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