CN209839392U

CN209839392U - Rubber sealing ring for connecting pipe bell mouth

Info

Publication number: CN209839392U
Application number: CN201920405993.9U
Authority: CN
Inventors: 李振声; 王文笔; 吴出华; 刘涛
Original assignee: Nan Plastic Building Material Plastic Products Shenzhen Co Ltd
Current assignee: Nan Plastic Building Material Plastic Products Shenzhen Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2019-12-24
Anticipated expiration: 2029-03-28

Abstract

A pipe socket joint rubber seal, comprising: the cross-section is the ring of triangle-shaped shape, and the ring outside is equipped with two inclined planes with the adaptation of pipe bellmouth flaring inner groovy promptly, and the ring medial surface is equipped with the ring protruding with pipe socket outer wall adaptation, its characterized in that: and a circle of circular arc-shaped groove is formed in the middle of the right inclined plane of the ring. On the basis of keeping the flexible sealing characteristic of the existing rubber ring and solving the linear expansion with heat and contraction with cold of materials, the rubber sealing ring is deformed by filling the circular arc-shaped groove with water flow pressure through the circular arc-shaped groove additionally arranged on the right inclined plane of the ring, so that the rubber sealing ring can be more closely attached to the pipe wall under the action of water pressure, and the problem of shallow water flow leakage at the joint of the PVC-UH pipeline is solved. Secondly, because the inside lining steel ring is arranged in the ring, the strength of the rubber sealing ring connected with the pipe bellmouth is greatly improved, and the problem of displacement of the content of the rubber ring during installation is solved.

Description

Rubber sealing ring for connecting pipe bell mouth

Technical Field

The utility model relates to a pipe connection accessory, especially a rubber seal is connected to pipeline bellmouth.

Background

At present, the connection mode of a high-performance rigid polyvinyl chloride pipe (PVC-UH) for low-pressure sewage drainage is loopy opening rubber ring sealing. In life, pipelines are usually adhered by cement, glass cement, PVC-U glue and the like, and joint parts of the sealing materials are easy to loosen and even separate from unreliable water leakage in pipeline connection. The reason is that cement, glass cement and PVC-U are adhered by glue, so that the influence of heat expansion and cold contraction on the pipeline cannot be overcome. For this reason, rubber gaskets are commercially available which are specifically used for sealing the connection pipe orifice of high-performance rigid polyvinyl chloride pipes (as shown in fig. 1). The section of the rubber sealing ring is triangular, two inclined planes on the outer side of the rubber sealing ring 1 are matched with an inner groove of a flaring of a pipe socket, and a ring bulge which has a sealing effect with the outer wall of the pipe socket is arranged on the inner side surface of the rubber sealing ring 1. However, when the pipeline is communicated with pressurized water flow, the pipeline is expanded under pressure, and the water flow can also extrude the rubber ring under the action of water pressure, so that a fine seam can be formed with the flaring of the pipeline or the problem of shallow leakage caused by the forming deviation of the flaring sealing area of the pipe is solved. Secondly, because the rubber ring is made of flexible materials, the rubber ring shifts when the flexible rubber ring is insufficiently supported in the flexible rubber ring.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that compensate above-mentioned prior art's defect, provide one kind and can prevent better because of sealing badly the pipeline bellmouth that the leakage problem appears and connect rubber seal.

The technical problem of the utility model is solved through following technical scheme.

This kind of pipeline bellmouth connects rubber seal includes: the section of the ring is triangular, namely two inclined planes matched with the inner groove of the flaring of the pipe socket are arranged on the outer side of the ring, and a ring bulge matched with the outer wall of the pipe socket is arranged on the inner side of the ring.

The rubber sealing ring for connecting the pipe bell mouth is characterized in that: and a circle of arc-shaped groove is formed in the middle of the inclined plane on one side of the ring.

The technical problem of the utility model is solved through following further technical scheme.

In order to improve the supporting strength of the ring, a lining steel ring is arranged in the ring.

Compared with the prior art, the utility model beneficial effect be:

the rubber sealing ring for connecting the pipe bell mouth has the advantages that the flexible sealing characteristic of the existing rubber ring is kept, the adaptability of the rubber sealing ring and the pipe wall is improved through the circular arc-shaped groove structure additionally arranged on the inclined plane on one side of the ring on the basis of solving the linear expansion caused by heat and contraction caused by cold of materials, and the rubber sealing ring can be attached to the pipe wall more closely under the action of water pressure, so that the problem of shallow water leakage at the joint of a PVC-UH pipeline is solved.

Secondly, because the inside lining steel ring is arranged in the ring, the strength of the rubber sealing ring connected with the pipe bellmouth is greatly improved, and the problem of displacement of the content of the rubber ring during installation is solved.

Drawings

FIG. 1 is a schematic structural view of a prior art rubber seal ring;

FIG. 2 is a schematic structural view of the rubber seal ring for connecting the pipe socket of the present invention;

FIG. 3 is a schematic view of the pipe bellmouth joint rubber packing of FIG. 2 at the pipe joint;

fig. 4 is an enlarged schematic view of a portion a shown in fig. 3.

The present invention will be described with reference to the accompanying drawings in conjunction with the following embodiments.

Detailed Description

Example (b): as can be clearly seen from fig. 2, fig. 3 and fig. 4, the structure of the rubber sealing ring for pipe socket connection of the present invention is substantially the same as the existing rubber sealing ring shown in fig. 1, including: the section of the ring 1 is triangular, namely the outer side of the ring 1 is provided with a left inclined surface 11 and a right inclined surface 12 which are matched with an inner groove 21 of a flaring of the pipe socket 2, and the inner side surface 13 of the ring 1 is provided with a ring bulge 14 which has a sealing effect with the outer wall of the pipe socket 3.

The difference lies in that: a circle of circular arc-shaped groove 15 is arranged in the middle of the right inclined plane 12 matched with the inner groove 21 of the flaring of the pipe bellmouth 2 and the ring 1.

A lining steel ring 16 is arranged in the ring 1.

When the rubber sealing ring is connected with the pipe bellmouth of the utility model, the supporting strength of the ring 1 is improved because the ring 1 is provided with the lining steel ring 16, the installation is convenient, and the ring 1 can be ensured to be always positioned in the flaring groove 21, the assembly relation between the flaring of the pipe bellmouth and the pipe socket of the pipe connection is shown in figure 4, and the left inclined plane 11 and the right inclined plane 12 of the ring 1 are respectively matched with the flaring inner groove 21 in a clinging way; the inner side surface 13 of the ring 1 is provided with a ring bulge 14 which is suitable for the outer wall of the pipe socket 3.

When pressure water flows through the pipeline, the water flow can extrude the ring 1 under the action of water pressure, and the ring 1 can form a thin and small seam between the ring 1 and the flaring of the pipeline in a pressed state or cause shallow leakage due to the forming deviation of the flaring sealing area of the pipe. And the utility model discloses 1 right inclined plane 12 of ring of rubber seal is connected to the pipeline bellmouth is owing to be equipped with round convex recess 15, and rivers can more closely paste and lean on in the pipe wall when being full of circle arc recess 15, round convex recess 15 one side rubber ring in the middle of 12 on the right inclined plane of ring 1 under hydraulic effect to avoid the shallow problem of leaking of rivers of pipe connection department.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. For those skilled in the art to which the invention pertains, equivalent substitutions or obvious modifications may be made without departing from the spirit of the invention, and the same properties or uses are deemed to fall within the scope of the invention as defined by the claims as filed.

Claims

1. A pipe socket joint rubber seal, comprising: the cross-section is the ring of triangle-shaped shape, and the ring outside is equipped with two inclined planes with the adaptation of pipe bellmouth flaring inner groovy promptly, and the ring medial surface is equipped with the ring protruding with pipe socket outer wall adaptation, its characterized in that:

and a circle of circular arc-shaped groove is formed in the middle of the right inclined plane of the ring.

2. The pipe bellmouth joint rubber seal ring according to claim 1, characterized in that:

and a lining steel ring is arranged in the ring.