Floor Drain Installation System with Coring Sleeve
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Solution Overview
Problem
Existing systems for installing floor drains in concrete slabs face challenges such as damage during concrete pouring, difficulty in height adjustment, and inability to accommodate changes in flooring levels without damaging the surrounding concrete.
Innovation Solution
A system comprising a coring sleeve, a removable coring plug, and an adaptor that allows for easy installation and adjustment of drain height, using a coring plug made of resilient material to protect the drain during concrete pouring and facilitate later adjustments by threading the drain into the sleeve after the concrete sets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the drain is installed by threading it into an adaptor prior to pouring the concrete slab, then the drain can be adjusted to the proper height, but the drain head is vulnerable to damage from concrete infiltration and heavy loads during construction
Solution Approach 1:
A coring sleeve is introduced as an intermediary component between the drain and the concrete slab. The sleeve receives the drain and extends through the slab, allowing the drain to be installed and adjusted before pouring while protecting it from concrete damage. The sleeve acts as a protective barrier that prevents concrete infiltration and distributes construction loads away from the drain head.
Solution Approach 2:
The drain is installed and positioned in the coring sleeve before the concrete slab is poured. This preliminary installation allows the drain to be set at the correct height and protected during the concrete pouring process, eliminating the need for later adjustment or repair work.
2Manufacturing precision
If the drain is installed flush with the concrete slab surface, then proper drainage is achieved, but any later addition of flooring material requires chipping away concrete to adjust the drain height
Solution Approach 1:
The coring sleeve provides a movable interface that allows the drain to be adjusted vertically within the sleeve after the concrete has set. The drain can be raised or lowered by rotating it within the sleeve, enabling future flooring additions without requiring concrete removal. This dynamic adjustment capability maintains the drain's flush appearance while providing flexibility for future modifications.
Solution Approach 2:
The system separates the drain adjustment function from the concrete structure by using a removable coring plug and adjustable drain positioning within the sleeve. This segmentation allows the drain height to be independently adjusted without affecting the integrity of the concrete slab, enabling future flooring installations while maintaining proper drainage alignment.
3Object-affected harmful factors
If a coring sleeve and removable coring plug system is used to protect the drain during concrete pouring, then damage to the drain head is reduced, but the installation system becomes more complex
Solution Approach 1:
The coring sleeve serves multiple functions simultaneously: it protects the drain from concrete damage, provides a mechanism for height adjustment, enables future flooring installations, and maintains the drain's flush appearance. By combining these functions into a single component, the system reduces overall complexity despite the added protection capabilities.
Data Source
AI summary
A floor drain installation system includes an adaptor attached to a drain pipe projecting from the ground, a coring sleeve having a bowl-shaped upper end attached to or integral with the adaptor, and a coring plug received within the bowl of the receiver to close off the drain pipe during pouring of a concrete floor and to create a space for subsequent reception of a drain head and grate.