Fiberglass pipe sealing sleeve joint and its processing method

Abstract

The invention discloses a glass fiber reinforced plastics pipeline sealing sleeve connector and a machining method thereof, which belongs to the technical field of a glass fiber reinforced plastics pipeline connector and a machining method thereof. The connector is used for connecting a left glass fiber reinforced plastics pipeline and a left glass fiber reinforced plastics pipeline. The glass fiber reinforced plastics pipeline sealing sleeve connector is characterized in that a connecting end on one side is an insertion end, a connecting end on the other side is a socket end, an insertion inner ring is concavely formed on the outer wall of the pipeline on the insertion end, the outer diameter of the insertion inner ring is smaller than that of the glass fiber reinforced plastics pipeline, an annular groove for accommodating a water-swelling rubber ring is formed on the middle part of the insertion inner ring, the insertion inner ring is sleeved by a stainless steel lantern ring, and the insertion inner ring is bonded with the stainless steel lantern ring by virtue of a bonding layer; a socket inner ring is concavely formed on the outer wall of the pipeline on the socket end, a sealing groove for accommodating a sealing ring is arranged on the middle part of the socket inner ring, and a grouting resistance-reduction through hole is formed on the edge, which is away from the socket end, of the socket inner ring. By adopting the double sealing of the water-swelling rubber ring and the elastically-deformed sealing ring, the connector is firm, durable and leak-free after being used for a long time.

Description

technical field [0001] The invention relates to an engineering pipeline joint and a production method thereof, in particular to a glass fiber reinforced plastic pipeline sealing sleeve joint and a production method thereof. Background technique [0002] FRP pipe is a new type of composite material, which has the advantages of light weight, corrosion resistance, and smooth inner wall. It was put into use in the domestic water supply and drainage industry in the late 1980s. In recent years, it has developed rapidly in raw materials, manufacturing equipment, and process technology. However, when the diameter of the pipeline is large, and it is used for long-term transportation of water, sewage, oil and other moisture-prone and perishable materials, the common flexible rubber ring socket joint or sleeve joint that is commonly used now is easy to break due to the design defect of the rubber ring. Deformation, corrosion, and looseness cause interface leakage. Some radial connectio...

AI Technical Summary

Problems solved by technology

However, when the diameter of the pipeline is large, and it is used for long-term transportation of water, sewage, oil and other moisture-prone and perishable materials, the common flexible rubber ring socket joint or sleeve joint that is commonly used now is easy to break due to the design defect of the rubber ring. Deformation, corrosion, and looseness cause interface leakage. Some radial connections are reliable, but axially easy to loosen; some axial connections are reliable, but radial are easy to loosen

The Chinese invention patent with the publication number CN102490369A "Large Diameter Anti-static Epoxy FRP Pipeline Processing Technology" is reliable in radial sealing, but it is specially designed for the interface design of high-pressure glass pipes, which is not suitable for non-high-pressure transportation of water and sewage Ordinary fiberglass pipes

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