Inspection well of injection molding sewage draining pipe

Abstract

The invention discloses an inspection well of an injection molding sewage draining pipe. The inspection well comprises a body, vertical pipe connecting openings and cross pipe connecting openings, and is characterized in that 360-degree-stressing platforms are arranged in the vertical pipe connecting openings; convex flaring openings are formed in the inner walls and the outer walls of the opening parts of the vertical pipe connecting openings and the cross pipe connecting openings; the angle alpha between the cross pipe connecting openings is 8 to 180 degrees; reinforcing sheets are arranged between the 360-degree-stressing platforms and the body; and convex reinforcing ribs are formed on the outer walls of the inserting parts of the vertical pipe connecting openings and the cross pipe connecting openings.

Description

technical field [0001] The invention relates to inspection wells, in particular to inspection wells for injection molded sewage discharge pipe fittings and rainwater pipe fittings. Background technique [0002] Due to the technical structure of the mold in the existing injection molding inspection well, if a 360° stress platform is formed at the connection of the vertical pipe during injection molding, the reinforcing rib and the protruding horn-shaped expansion can not be formed at the connection of the horizontal pipe. mouth; if the horizontal pipe connection is made with reinforcing ribs and protruding trumpet-shaped flares, then the vertical pipe connection cannot be made with a 360° force-bearing platform, so the existing injection molding manholes cannot have the above two The disadvantages of the structure are: there are no reinforcement ribs and protruding trumpet-shaped flared inspection wells at the connection of the horizontal pipe, the strength of the mouth of th...

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Problems solved by technology

[0002] Due to the technical structure of the mold in the existing injection molding inspection well, if a 360° stress platform is formed at the connection of the vertical pipe during injection molding, the reinforcing rib and the protruding horn-shaped expansion can not be formed at the connection of the horizontal pipe. mouth; if the horizontal pipe connection is made with reinforcing ribs and protruding trumpet-shaped flares, then the vertical pipe connection cannot be made with a 360° force-bearing platform, so the existing injection molding manholes cannot have the above two The disadvantages of the structure are: there are no reinforcement ribs and protruding trumpet-shaped flared inspection wells at the connection of the horizontal pipe, the strength of the mouth of the connection of the horizontal pipe and the fitting part of the water pipe is poor, and the connection between the connection of the horizontal pipe and the water pipe is poor. When the heat shrinkable sleeve is used for sealing connection, the adhesion coefficient is reduced, it is easy to pull off, and the installation is troublesome; there is no 360° stress platform at the connection port of the vertical pipe, and when it is matched with the vertical wellbore pipe, the supporting surface of the connection port of the vertical pipe is small. The place where the wellbore pipe is not in contact with the stress platform of the vertical pipe connection is easy to sink, while the contact between the wellbore pipe and the standpipe connection is prone to tilting or even rupture after a long unilateral force, resulting in the failure of the entire inspection well and wellbore pipe. shortened service life

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