Self-sealing connection bell and spigot joint of plastic inspection well

Abstract

The invention discloses a plastic inspection well self-sealing connection socket which is characterized by comprising a socket (6), a sealing ring (4) is arranged in the socket (6), an anti-falling pre-tightening compression ring (3) is arranged at an inlet of the socket (6), the anti-falling pre-tightening compression ring (3) pre-tightens the sealing ring (4) through a pre-tightening screw (2) and a nut (5), a first binding face (25) is arranged on the outer surface of a tail end face (27) of the sealing ring (4), and a second binding face (25) is arranged on the outer surface of the tail end face (27) of the sealing ring (4). And an annular groove (23) is formed behind the first binding surface (25). Through the design of a self-sealing structure of the socket joint of the inspection well, the sediment accumulation position is controlled by draining sediment flowing in a pipe network, and axial isobaric self-sealing of the joint of the inspection well and a pipeline is achieved. The connector is designed to be of a double-anti-disengagement detachable structure, sealing at multiple positions can be achieved, the sealing ring and the pipeline are prevented from axially retreating from the socket connector of the inspection well, and rework disassembly and reinstallation of water leakage points of the connector of the inspection well and the pipeline can be achieved. And the device can be directly inserted into a socket of the inspection well to realize sealing connection.

Description

technical field [0001] The invention relates to a plastic inspection well self-sealing connection socket interface, which belongs to the technical field of pipeline sealing. Background technique [0002] Plastic double-wall corrugated pipes have been widely used in various drainage and irrigation pipe network systems since their appearance. The formation of pipe networks is inseparable from plastic inspection wells. In production, the connection between the pipeline and the inspection well is mainly a socket connection; one end of the corresponding pipeline is a socket plug, and one end of the inspection well is a socket. The socket on the inspection well is generally integrated with the main body of the inspection well by injection molding, and the socket on the pipe is extruded into one body with the main body of the pipe; the socket connection used is to insert a rubber sealing ring in the trough of the socket plug of the pipe. Then the socket plug is inserted into the s...

AI Technical Summary

Problems solved by technology

However, as time goes by, the sediment contained in the sewage flowing in the pipe network will accumulate at the rubber sealing ring, and the radial sealing position of the rubber sealing ring will be squeezed axially, and the sediment extrusion force will increase over time. The larger and larger, the axial deformation and slippage of the sealing ring will eventually lead to the leakage of the pipe network at the connection position between the inspection well and the pipeline, causing serious consequences

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