Swimming Pool Overflow Grate Gap Layout for Quiet Water Entry
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Solution Overview
Problem
Existing overflow devices for swimming pools generate significant noise due to the impact of water on the cover grate before entering the overflow channel, which affects the swimming experience and concentration of users.
Innovation Solution
An overflow device with a cover grate positioned to create a gap between the grate and the overflow channel's longitudinal side, allowing water to flow directly into the channel without hitting the grate, reducing noise by minimizing impact and splashing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the cover grate is positioned to rest on the overflow channel edge, then the cover grate provides safety coverage, but water impacts the grate causing significant noise
Solution Approach 1:
The harmful impact zone is extracted by positioning the cover grate forward so that water flows along the front wall without hitting the grate bars. The grate is effectively removed from the water impact path while maintaining its safety coverage function.
Solution Approach 2:
The front longitudinal wall acts as an intermediary element between the overflow edge and the cover grate. It provides a smooth surface for water to flow along, preventing direct impact with the grate while ensuring proper water guidance into the overflow channel.
2Object-affected harmful factors
If the cover grate is positioned closer to the overflow edge, then safety coverage is improved, but water splashing and dripping noise increases
Solution Approach 1:
The solution moves the water flow path to a different spatial dimension by utilizing the front longitudinal wall surface. Water flows vertically down the wall face rather than horizontally impacting the grate bars, changing the flow dimension and eliminating splash noise.
3Ease of manufacture
If the cover grate rests on an angled bend or groove, then structural support is provided, but complex installation and positioning are required
Solution Approach 1:
Instead of modifying the overflow channel structure to create angled bends or grooves for grate support, the solution inverts the approach by having the grate rest on a simple horizontal ledge and extending forward. This simplifies the overflow channel structure while achieving the desired water flow control.
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
The device achieves a noise reduction of approximately 20 dB compared to previous designs, with water flowing quietly into the overflow channel, minimizing noise and improving the swimming environment.
Implementation Method 1
bath water flowing over the overflow edge can enter the overflow channel through the gap
Data Source
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AI summary
The invention relates to an overflow device (1) for a swimming pool (2) comprising an overflow channel (3) and a cover grate (4), wherein the overflow channel (3) has a support device (5) on which the cover grate (4) rests and thereby at least partially covers the overflow channel (3) on its upper side, and has an overflow edge (6) over which pool water (7) can flow from the swimming pool (2) into the overflow channel (3). The overflow channel (3) has a front longitudinal wall (8) adjoining the overflow edge (6), which together form a front longitudinal side (9) of the overflow device (1), and an opposite rear longitudinal wall (10).According to the invention, the position of the cover grate (4) relative to the support device (5) is restricted by a limiting device (11) such that a gap (13) is formed between the front longitudinal side (9) of the overflow device (1) and a front longitudinal edge (12) of the cover grate (4) facing the front longitudinal side (9). The gap (13) extends along the front longitudinal edge (12) of the cover grate (4), and bath water (7) flowing over the overflow edge (6) can enter the overflow channel (3) through the gap (13).