Siphonic Roof Drain Bottom Segmentation for Simplified Assembly
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Solution Overview
Problem
The high cost and complexity in manufacturing siphonic roof drains due to the need for flanges with bolt passages and threaded parts in the drain bottom, which complicates the production process.
Innovation Solution
The siphonic roof drain is designed with a drain bottom composed of separate parts, where the connection to the drain connector is achieved through threaded rods and nuts passing through the drain bottom, eliminating the need for flanges and complex connecting means, allowing for simpler and more economical production using two-piece moulds and sheet distortion techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If flanges with bolt passages and threaded parts are provided in the drain bottom, then the drain bottom can be connected to the drain connector, but the manufacturing complexity and cost increase significantly
Solution Approach 1:
The invention extracts the connecting means (threaded rods and nuts) from the drain bottom structure itself. Instead of integrating flanges and threaded parts into the drain bottom, the connecting means are separate components that pass through the drain bottom, thereby simplifying the drain bottom manufacturing while maintaining connection reliability
Solution Approach 2:
The invention segments the drain bottom into separate parts (at least two parts) that are assembled together with the connecting means passing through them. This segmentation allows each part to be manufactured separately with simpler processes, avoiding the need for complex integrated flange structures
2Strength
If the drain bottom is made as a single integrated piece with flanges, then the structure is rigid, but the manufacturing process becomes complex and expensive
Solution Approach 1:
The drain bottom is divided into at least two separate parts that are assembled together using connecting means. This segmentation reduces the complexity of manufacturing each individual part while the assembled structure maintains the required rigidity through proper design of the connecting means and part geometry
Solution Approach 2:
The invention combines multiple separate parts (drain bottom parts, connecting means, seal elements) into a functional assembly that achieves the same structural rigidity as a single integrated piece, but with simpler manufacturing processes for each component
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
This design simplifies the assembly, mounting, and maintenance of the siphonic roof drain, reduces production costs, and enables the use of simpler manufacturing methods while maintaining structural rigidity and hydraulic performance.
Implementation Method 1
the drainage of the rain water through the drain pipe is additionally reinforced by the subatmospheric pressure which is created when air is prevented from being sucked in at the top of the drain pipe
Implementation Method 2
In case of heavy rainfall, the water level in the siphonic roof drain rises above said cover plate, such that air is prevented from being sucked in at the top of the drain pipe. Thus, a subatmospheric pressure is created. The pipe is entirely filled with water.
Data Source
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AI summary
Siphonic roof drain for draining rain water under subatmospheric pressure, which siphonic roof drain comprises at least a drain bottom, fit to be connected to a separate drain connector (2) for the further coupling of a drain pipe (7) to a complementary pipe connector (6), characterised in that the drain bottom is provided with passages (17) for connecting means to connect the drain bottom or a part to the drain connector (2).