Height-Adjustable Strainer Arms for Gully Adaptability
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Solution Overview
Problem
Existing restraint devices for parapet drains lack flexibility and adjustability, making them difficult to adapt to various installation situations and gully sizes, and are costly to manufacture and assemble.
Innovation Solution
A modular restraint device with a height-adjustable holding device that can be connected to the collecting basket during assembly, allowing for flexible combination of standard components and infinite adjustability of holding forces, enabling easy assembly and adaptation to different gully sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a non-height-adjustable holding device is used, then the device structure is simple, but the adaptability to different gully sizes and installation situations is poor
Solution Approach 1:
The holding device incorporates height-adjustable holding arms that can be positioned at multiple heights along the collecting basket. This dynamic adjustment capability allows the device to adapt to different gully sizes and installation situations, resolving the contradiction between adaptability and structural simplicity.
Solution Approach 2:
The holding device is divided into multiple segments or adjustment positions along the collecting basket. Each segment can be independently adjusted to different heights, enabling the device to accommodate various gully dimensions while maintaining a relatively simple overall structure through modular design.
2Adaptability or versatility
If a separate and non-adjustable holding device is used, then the manufacturing cost is low, but the flexibility in assembly and installation is limited
Solution Approach 1:
The holding device is designed as a separate assembly with multiple adjustable segments that can be connected to the collecting basket during assembly. This segmentation allows for flexible installation while keeping manufacturing costs relatively low through standardized modular components.
Solution Approach 2:
The holding arms are designed with adjustable height capabilities, allowing them to be positioned at different levels during assembly. This dynamic feature provides installation flexibility without significantly increasing manufacturing complexity or cost.
3Adaptability or versatility
If a fixed holding device is used, then the device structure is simple, but the adjustability of holding forces is limited
Solution Approach 1:
The holding arms are designed to be adjustable in height and position, enabling the holding device to adapt to different gully sizes and provide varied holding forces. This dynamic adjustment capability resolves the contradiction between force adjustability and structural simplicity.
Data Source
Figure 1
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Figure 4~5
AI summary
The application describes a retaining device (1), in particular for flat roof drains, - with a catch basket (2) which is pot-shaped and has a circumferential support rim (3), and - with a holding device (4) which is arranged on the catch basket (2) and which has holding arms (5, 6) movable between a holding position and a release position, wherein the holding device (4) is height-adjustable