CN201651611U - a sealing ring - Google Patents

Abstract

The utility model provides a sealing ring, which comprises a cylindrical ring body. A projecting rib is arranged on the outer surface of the ring body, a groove is arranged at one end of the ring body, and a projecting rib is arranged on an outer ring face of the sealing ring body, thereby increasing sealing performance between a pipe and a lining plastic pipe fitting. The groove is arranged on the end face of the sealing ring body to serve as a compressed groove, thereby increasing elastic deformation capacity of the sealing ring, enhancing sealing effect, ensuring no contact of water with a pipe fitting metal layer, ensuring no seepage of the pipe fitting and the pipe fitting connection, avoiding pipe fitting rusting, and preventing secondary pollution of drinkable water.

Description

a sealing ring

technical field

The utility model relates to a sealing ring for pipe fittings, in particular to a sealing ring for plastic-lined pipe fittings. the

Background technique

The sealing ring is an accessory in the plastic-lined pipe fittings, which plays a sealing role in the pipeline connection, prevents water from contacting the metal pipe fittings, and avoids water leakage at the connection between the pipe fittings and the pipes. Therefore, the design of the sealing ring is a very important part of the design of plastic-lined pipe fittings. When designing the sealing ring, the structure, material properties and other requirements of the sealing ring should be considered to ensure the sealing effect. the

Most of the current pipe fitting sealing rings adopt single-layer sealing and single-principle sealing, and there are also sealing rings that adopt multi-layer single-principle sealing. The defect of the single-layer sealing method is that it is easy to fail. The multi-layer single-principle sealing method can improve the sealing performance, but it may also cause sealing failure due to failure of key factors, resulting in water leakage. the

Utility model content

The purpose of this utility model is to design a sealing ring for plastic-lined pipe fittings, which has better tear resistance and elastic deformation capability, and is a sealing ring for plastic-lined pipe fittings with better sealing performance. the

In order to achieve the above purpose, the technical scheme adopted is as follows:

A sealing ring, comprising a cylindrical ring body, the outer surface of the ring body is provided with protruding ribs, and one end of the ring body is provided with a groove. the

The utility model is provided with a groove on the end of the sealing ring body to increase the elastic deformation capacity. Through the groove, it is convenient for the pipe fittings to effectively shrink when the sealing ring is squeezed to achieve the best sealing. Effect. the

In the above technical solution, the groove is a "U" shaped groove. the

The groove can also be a "V" shaped groove. the

The protruding ribs described in the utility model are in a zigzag shape. the

The protruding ribs are arranged in the middle of the outer surface of the ring. the

A chamfer is provided on the outer surface of the other end of the ring body which is not provided with a groove. the

The ring body and its axis are inclined at a certain angle. the

The beneficial effects of the utility model are as follows:

Since there are raised ribs on the outer ring surface of the sealing ring body, the sealing performance between the pipe and the plastic-lined pipe fittings is improved, and grooves are set on the end surface of the sealing ring body as shrinkage grooves, which improves the sealing performance of the sealing ring. The elastic deformation ability enhances the sealing effect, ensures that the water does not touch the metal layer of the pipe fittings, ensures that the connection between the pipe and the pipe fittings does not leak, avoids corrosion of the pipe fittings, and prevents secondary pollution of drinking water. the

Description of drawings

Figure 1 is a sealing ring with a U-shaped groove structure;

Figure 2 is a sealing ring with a V-shaped groove structure. the

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described further. the

The structure of the present utility model is shown in accompanying drawing 1 and accompanying drawing 2, and Fig. 1 shows that the outer ring surface of the sealing ring body has raised ribs with oblique angles, and there is an increased elastic deformation on the inner end surface of the sealing ring body Schematic diagram of the structure of the sealing ring used for plastic-lined pipe fittings with U-shaped grooves. Figure 2 shows that there are beveled ribs on the outer ring surface of the sealing ring body, and there are increased elasticity on the inner end surface of the sealing ring body. Schematic diagram of the structure of the sealing ring for plastic-lined pipe fittings with deformable V-shaped grooves. the

The utility model comprises a sealing ring body 1, a protruding rib 2 with an oblique angle, a U-shaped groove 3, or a V-shaped groove 4. the

The working process of the utility model is: the sealing ring is set on the plastic end of the plastic lining pipe fitting. As the steel pipe or pipe fitting is screwed in, the sealing ring body 1 is squeezed to the bottom of the plastic lining layer of the pipe fitting and gradually compacted. The protruding ribs 2 on the outer ring surface of the sealing ring can ensure that the sealing ring body 1 is squeezed to the bottom of the plastic lining layer of the pipe fittings, and form a multi-layer sealing structure, and the groove 3 or 4 on the sealing ring body 1 can provide Better elastic deformation ability, thus improving the sealing performance. the

Claims (6)

1. a seal ring comprises the tubular circle body, and the outer surface of circle body is provided with raised ribs, it is characterized in that an end of circle body is provided with groove.

2. seal ring according to claim 1 is characterized in that described groove is " U " connected in star.

3. seal ring according to claim 1 is characterized in that described groove is " V " connected in star.

4. according to claim 1 or 2 or 3 described seal rings, it is characterized in that described raised ribs indentation.

5. seal ring according to claim 4 is characterized in that described raised ribs is arranged on the intermediate portion of circle body outer surface.

6. seal ring according to claim 1 is characterized in that the outer surface that described circle body is not provided with another end of groove is provided with chamfering.

Images