CN212107359U

CN212107359U - Sealing rubber ring for water pipe connection

Info

Publication number: CN212107359U
Application number: CN202020813239.1U
Authority: CN
Inventors: 贾锋
Original assignee: Tianjin Jihua Rubber Products Co ltd
Current assignee: Tianjin Jihua Rubber Products Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-12-08
Anticipated expiration: 2030-05-15

Abstract

The application discloses a sealing rubber ring for connecting a water pipe, which comprises two flanges and a rubber ring body; the two flanges are fixedly connected by bolts; clamping blocks are arranged on the opposite side vertical surfaces of the two flanges; the rubber ring body comprises a first rubber ring fixedly arranged between the clamping blocks; a second rubber ring is fixedly arranged on the inner ring surface of the first rubber ring; two ends of the second rubber ring respectively extend into the inner ring surfaces of the two flanges; the outer ring surface of the second rubber ring is abutted against the inner ring surface of the flange; two ends of the outer ring surface of the second rubber ring are fixedly provided with annular first sealing rings; the inner ring surface of the flange is provided with a first sealing groove matched with the first sealing ring. The sealing rubber ring for water pipe connection is convenient to install and good in sealing effect.

Description

Sealing rubber ring for water pipe connection

Technical Field

The application relates to the technical field of sealing, especially, relate to a sealing rubber circle for water piping connection.

Background

In the water supply pipeline, in order to facilitate connection and convenient maintenance, flanges are generally used for connection between water pipes.

In the prior art, the rubber ring is usually used for sealing between two flanges, but in the installation process, especially the installation process of a transverse pipeline, the rubber ring is easy to deviate in the fastening process, the internal space of a water pipe is blocked, and the sealing effect cannot be achieved. In the fastening process of the flange plate, the rubber ring is easy to deform due to uneven stress of the flange, so that the service life of the flange plate is shortened, and the flange plate is not tight in sealing.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a sealing rubber ring for water pipe connection, which is easy to install and not easy to deform.

The application provides a sealing rubber ring for water pipe connection, which comprises two flanges and a rubber ring body; the two flanges are fixedly connected by bolts; clamping blocks are arranged on the opposite side vertical surfaces of the two flanges;

the rubber ring body comprises a first rubber ring fixedly arranged between the clamping blocks; a second rubber ring is fixedly arranged on the inner ring surface of the first rubber ring; two ends of the second rubber ring respectively extend into the inner ring surfaces of the two flanges; the outer ring surface of the second rubber ring is abutted against the inner ring surface of the flange; two ends of the outer ring surface of the second rubber ring are fixedly provided with annular first sealing rings; the inner ring surface of the flange is provided with a first sealing groove matched with the first sealing ring.

The above-mentioned aspect and any possible implementation manner further provide an implementation manner, wherein the second rubber ring is in interference fit with the inner annular surface of the flange; the first sealing ring is in interference fit with the first sealing groove.

The above aspect and any possible implementation manner further provide an implementation manner, wherein an end face of the first rubber ring, which is in contact with the clamping block, is provided with a plurality of concentric second sealing rings; the clamping block is provided with a second sealing groove matched with the second sealing ring.

In accordance with the above aspect and any possible implementation manner, there is further provided an implementation manner in which the first sealing ring and the second sealing ring are both provided with support rings inside.

The above aspects and any possible implementations further provide an implementation in which the rubber ring body is integrally formed.

The above aspect and any possible implementation further provide an implementation in which the support ring is made of a metal material.

Compared with the prior art, the beneficial effects of this application are:

when the sealing rubber ring for water pipe connection is installed, one end of the second rubber ring extends into the flange, so that the flange can be temporarily fixed, and the phenomenon that the sealing rubber ring deviates in the installation and fastening process of the flange, so that a water path is blocked and the sealing is not tight is avoided; meanwhile, the sealing effect is improved by arranging the first sealing ring and the second sealing ring; be provided with metal material's support ring in first sealing washer, the second sealing washer, when improving sealed effect, prevent that the sealing rubber circle warp, prolong its life.

It should be understood that what is described in this summary section is not intended to limit key or critical features of the embodiments of the application, nor is it intended to limit the scope of the application. Other features of the present application will become apparent from the following description.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a sealing rubber ring for water pipe connection provided in an embodiment of the present application when installation is completed;

fig. 2 is a schematic structural diagram of a sealing rubber ring for water pipe connection according to an embodiment of the present disclosure;

fig. 3 is an enlarged schematic view of a portion a in fig. 1.

Reference numbers in the figures: 1, flange, 2 rubber ring body and 3 bolt;

11 a clamping block, 12 a first sealing groove and 13 a second sealing groove;

21 a first rubber ring, 22 a second rubber ring, 23 a first sealing ring, 24 a second sealing ring and 25 a support ring.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should be noted that, for the convenience of description, only the portions relevant to the application are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 3, an embodiment of the present application provides a sealing rubber ring for connecting a water pipe, including two flanges 1 and a rubber ring body 2; the two flanges 1 are fixedly connected by bolts 3; clamping blocks 11 are arranged on the opposite side vertical surfaces of the two flanges 1;

the rubber ring body 2 comprises a first rubber ring 21 fixedly arranged between the clamping blocks 11; a second rubber ring 22 is fixedly arranged on the inner ring surface of the first rubber ring 21; two ends of the second rubber ring 22 respectively extend into the inner ring surfaces of the two flanges 1; the outer ring surface of the second rubber ring 22 is abutted against the inner ring surface of the flange 1 and is in interference fit with the inner ring surface of the flange; two ends of the outer ring surface of the second rubber ring 22 are fixedly provided with annular first sealing rings 23; the inner ring surface of the flange 1 is provided with a first sealing groove 12 matched with the first sealing ring 23; the first seal ring 23 is in interference fit with the first seal groove 12. In the embodiment, when the flange 1 is installed, one end of the second rubber ring 22 extends into the flange 1 to enable the first sealing ring 23 to be meshed with the first sealing groove 12, the rubber ring body 2 is temporarily fixed, the other flange 1 is aligned to the other end of the second rubber ring 22, the other end of the second rubber ring is pressed into the other flange 1, the first sealing ring 23 at the other end of the second rubber ring 22 is meshed with the first sealing groove 12 of the other flange 1, the two flanges 1 are connected and fastened through the bolts 3, the flange 1 is pressed tightly, and the clamping block 11 on the opposite side vertical surface of the flange 1 clamps the second rubber ring 22, so that the installation and sealing process is completed; the outer diameter of the second rubber ring 22 is larger than the inner diameter of the flange 1, and the outer diameter of the first sealing ring 23 is larger than the inner diameter of the first sealing groove 12, so that the sealing effect is improved.

In a preferred embodiment, the end face of the first rubber ring 21 in contact with the clamping block 11 is provided with a plurality of concentric second sealing rings 24; the clamping block 11 is provided with a second sealing groove 13 matched with the second sealing ring 24. Referring to fig. 3, in this embodiment, three concentric second seal rings 24 are disposed on the end surface of the first rubber ring 21 contacting the clamping block 11, the outer surface of the second seal ring 24 is arc-shaped, and three second seal grooves 13 are also disposed, and the positions and the radians of the three second seal grooves are matched with those of the second seal ring 24, so as to increase the contact surface area between the first rubber ring 21 and the clamping block 11 and increase the sealing effect.

In a preferred embodiment, the first sealing ring 23 and the second sealing ring 24 are each provided internally with a support ring 25 made of metal material. Referring to fig. 3, in the embodiment, the first sealing ring 23 and the second sealing ring 24 are both provided with a support ring 25 made of a metal material inside to provide support for the first sealing ring 23 and the second sealing ring 24, so as to increase the strength of the rubber ring body 2, prevent the rubber ring body 2 from being deformed due to uneven stress of the flange 1 during the fastening process, affect the sealing effect, and reduce the service life of the rubber ring body 2.

In a preferred embodiment, the rubber ring body 2 is integrally formed, so that the strength of the rubber ring body 2 is improved, the sealing effect is increased, and the service life is prolonged.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," etc. means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A sealing rubber ring for connecting a water pipe is characterized by comprising two flanges and a rubber ring body; the two flanges are fixedly connected by bolts; clamping blocks are arranged on the opposite side vertical surfaces of the two flanges;

the rubber ring body comprises a first rubber ring fixedly arranged between the clamping blocks; a second rubber ring is fixedly arranged on the inner ring surface of the first rubber ring; two ends of the second rubber ring respectively extend into the inner ring surfaces of the two flanges; the outer ring surface of the second rubber ring is abutted against the inner ring surface of the flange; two ends of the outer ring surface of the second rubber ring are fixedly provided with annular first sealing rings; and a first sealing groove matched with the first sealing ring is formed in the inner ring surface of the flange.

2. The sealing rubber ring for water pipe connection according to claim 1, wherein the second rubber ring is in interference fit with the inner annular surface of the flange; the first sealing ring is in interference fit with the first sealing groove.

3. The sealing rubber ring for water pipe connection according to claim 2, wherein the end face of the first rubber ring contacting the clamping block is provided with a plurality of concentric second sealing rings; and the clamping block is provided with a second sealing groove matched with the second sealing ring.

4. The sealing rubber ring for water pipe connection according to claim 3, wherein a support ring is provided inside each of the first and second sealing rings.

5. The sealing rubber ring for water pipe connection according to claim 4, wherein the rubber ring body is integrally formed.

6. The packing rubber ring for water pipe connection according to claim 5, wherein the support ring is made of metal material.