Above-Ground Pool Drain Plug Assembly for Faster, Unattended Drainage

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Solution Overview

Problem

Above-ground pools require a time-consuming draining process that often necessitates user supervision, which is inefficient and inconvenient.

Innovation Solution

A drain assembly for above-ground pools featuring a drain hole, a detachable drain plug member, and a locking member that allows for easy detachment and reattachment, ensuring a watertight seal in the closed position and unobstructed drainage in the open position.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a traditional drain plug is used, then the pool can be drained, but the process is time-consuming and requires user supervision

Engineering Contradiction:
Improvedrainage speedVSAvoidtime for draining process
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The drain plug member is pre-configured with a locking mechanism that automatically secures itself to the locking member when attached, eliminating the need for continuous user supervision during the draining process. The preliminary design of the locking mechanism ensures the plug remains securely in place without requiring ongoing user intervention.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If a secure drain plug is used to ensure watertight seal, then leakage is prevented, but the detachment and reattachment process becomes complex

Engineering Contradiction:
Improvewatertight sealVSAvoidease of detachment and reattachment
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The sealing function is segmented from the structural attachment function. The drain plug member includes a separate sealing element that interfaces with the drain hole, while the locking member provides the attachment mechanism. This segmentation allows the seal to remain reliable while the locking mechanism simplifies detachment and reattachment operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The locking member acts as an intermediary between the drain plug member and the drain hole. It provides a standardized interface that simplifies the attachment and detachment process while ensuring the drain plug member maintains a secure, watertight connection to the drain hole when engaged.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of manufacture

If a simple drain plug design is used, then manufacturing is easy, but the drainage process requires continuous user supervision

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoiduser supervision requirement
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The locking mechanism is designed to be self-activating. When the drain plug member is attached to the locking member, the locking mechanism automatically engages without requiring additional user actions or supervision. This self-service feature maintains manufacturing simplicity while eliminating the need for continuous user oversight during drainage.

Inventive Principle:
Principle #25Self-service

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Facilitates quick and user-friendly drainage of above-ground pools, maintaining modularity and convenience while improving the user experience during storage and disassembly.

Implementation Method 1

a watertight seal is formed between the drain plug member and the drain hole

Methodology Applied
Scientific EffectWatertight seal:

Data Source

PatentEP3947863B1Drain plug for an above-ground pool
Publication Date: 2025.07.02 BELGRAVIA WOOD LTD
  • EP3947863B1 patent drawingFigure 1
  • EP3947863B1 patent drawingFigure 2
  • EP3947863B1 patent drawingFigure 3

AI summary

An improved drain for an above-ground pool is disclosed. A variety of above-ground pool types are considered. Above-ground pools must be drained after use before being stored in a lengthy and time-consuming process. The improved drain can advantageously remain open during the draining process allowing for improved drainage. The drain can comprise a plug member and a locking member. The plug member can be configured to attach to the locking member when open. This and other embodiments are disclosed herein.