Direct inserting self-sealing type plastic downspout

Abstract

The invention discloses a direct inserting self-sealing type plastic downspout. The direct inserting self-sealing type plastic downspout comprises a downspout body (1), a connecting port (2), an O-shaped ring (3) and a ring baffle (4), wherein the O-shaped ring and the ring baffle are sequentially arranged at the connecting port of the downspout body from outside to inside. When the direct inserting self-sealing type plastic downspout is applied, a pipe with an outward inclination angle at an end is directly inserted along the connecting port, the O-shaped ring made of silicone rubber is used for sealing between the downspout body and the pipe, the ring baffle is used for limiting the depth of the pipe inserted into the downspout body, pipe breakage and leakage caused by weathering or wall sedimentation are eliminated through the aging resistance of the O-shaped ring made of the silicone rubber and the free telescopic connecting relationship between the downspout body and the pipe, and the connection and use of the plastic downspout realize the purposes of convenient connection, high efficiency, environment protection, low cost and elimination of leakage risks.

Description

technical field [0001] The invention relates to a pipe fitting, in particular to an in-line self-sealing plastic downwater pipe fitting specially used for connecting plastic downwater pipes. Background technique [0002] Pipe fittings are parts that connect pipes into pipelines, including straight throughs, elbows, tees, cross fittings, etc., which can be used for the connection of water supply or downwater pipelines; the connection structure of pipe fittings and pipes is connected according to the pressure-bearing water supply pipeline Design is required, that is, metal pipe fittings are sealed or welded with threaded raw material tape; plastic pipe fittings are sealed or heat-sealed with in-line adhesive connection. This article only deals with plastic downpipe fittings specially used to connect plastic downpipes; usually, plastic downpipes laid on the outer surface of the house wall are called external type, and plastic downpipes buried inside the house wall are called in...

AI Technical Summary

Problems solved by technology

[0003] In the actual construction of the plastic pipe fittings of the prior art, the heat-sealing connection of the plastic pipe fittings needs to be heated by a power supply for heat sealing, and the connection is troublesome and inefficient; the plastic pipe fittings of the straight-insert adhesive sealing connection need to be injected with chemical adhesive at the joint for sealing and bonding , while chemical adhesives are harmful to builders, not environmentally friendly and costly;

[0004] In practical applications, the externally installed plastic downpipes that are sealed and connected with in-line adhesives, because chemical adhesives are prone to heat aging, will be weathered into powder after several years of cold and heat, causing sewage to flow outward from the joints of the plastic downpipes. It leaks and flows downward along the outer wall, and the stench is unbearable; the embedded plastic downpipe is adopted. Due to the settlement of the wall of the house over time, the embedded downpipe has no room for expansion and contraction, whether it is a direct-insertion adhesive seal connection or heat sealing The connected downpipes will break at the joints of the plastic downpipes, and they will be broken or fractured neatly along the cross-section of the joints, causing sewage to leak into the wall and make the wall scrapped; therefore , the existing technology has the problems and deficiencies of troublesome connection, low efficiency, environmental protection, high cost and easy leakage

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