Pipeline interface sealing device and preparation method thereof

Abstract

The invention discloses a pipe joint sealing device and a preparation method. The sealing device includes a pipe socket, a pipe socket and a sealing rubber ring placed at the joint of the two. The sealing rubber ring is integrally formed and has the same hardness throughout the body. The medium contact surface of the sealing rubber ring is an inclined surface or a wave surface. The present invention also provides a pipe joint method using the above-mentioned device. When in use, a groove matching the shape of the sealing rubber ring is formed on the pipe socket. During the process of pushing the pipe socket, the sealing rubber ring is compressed and deformed, and finally realized Sealed connections for pipes. In addition, a preparation method of the sealing device is provided, the purpose of which is to provide a pipe joint device equipped with a sealing rubber ring and a pipe joint method using the same, which has a simple structure and greatly reduces installation resistance while ensuring the sealing effect.

Description

technical field [0001] The invention relates to the field of metal pipeline sealing, especially in the water supply pipeline industry, in particular to a pipeline interface sealing device and a preparation method. Background technique [0002] Such as figure 1 As shown, it is a cross-sectional view of the T-shaped apron used in the T-shaped interface of the prior art. The T-shaped apron is composed of two parts of colloids with different hardness, which are the hard rubber support part 4A, the soft rubber right part 6A and the soft rubber left part. The right part 6A of the soft rubber and the left part 8A of the soft rubber are actually an integral sphere, and the boundary line 7A in the soft rubber is a splicing surface artificially set for the convenience of the description of this case, and the soft, The hard glue boundary line 5A is the actual splicing surface. The surface of the right part 6A of the soft rubber is spherical and is a medium contact surface. [0003] ...

AI Technical Summary

Problems solved by technology

During the process of inserting the pipe socket 15A into the pipe socket 9A, the T-shaped apron generates a relatively large insertion resistance due to the rebound, and the resistance is composed of the hard rubber support part 4A, the soft rubber left part 8A and the soft rubber right part 6A. part of the rebound force, and the sealing effect is mainly determined by the imaginary interface between the right part 6A of the soft rubber and the left part 8A of the soft rubber with the greatest degree of compression, that is, the sealing height H1 of the boundary line 5A of the left and right parts of the soft rubber. Therefore, The right part 6A of the soft rubber has little effect on the sealing effect of the T-shaped rubber ring, but it produces a large rebound resistance, which makes installation difficult, especially with the increase of the diameter of the soft rubber. The amount of colloid in part 6 is increasing, and the degree of compression is also increasing, forming greater installation resistance, which brings great inconvenience to the construction

Moreover, the apron is composed of two kinds of colloids with different hardness, the processing technology is complicated, and the apron is also easy to crack from the boundary between soft and hard rubber.

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