Adjustable Door Sweep with Independent Vertical Adjustment
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Solution Overview
Problem
Existing door sweeps and seals are typically of fixed height, which can lead to gaps in air and light sealing, and adjustable options often require complex adjustments limited to vertical movement only.
Innovation Solution
An adjustable door sweep design featuring an elongated upper frame, lower carrier, and extensions with independent vertical adjustment capabilities through pin-like connecting members, allowing for precise fitting to uneven thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed-height weather stripping and seals are used, then manufacturing is simple and cost-effective, but they cannot fit within gaps of varying heights or leave small gaps
Solution Approach 1:
The door sweep is divided into multiple independent segments - the upper frame remains fixed while the lower carrier with extensions can move independently. Each end of the lower carrier can be adjusted separately via connecting members moving through apertures in the upper frame, allowing adaptation to varying gap heights without requiring a completely adjustable structure.
Solution Approach 2:
The door sweep transitions from a fixed static structure to a dynamic adjustable structure. The lower carrier is designed to move vertically relative to the upper frame through the aperture system, enabling the extensions to reach different heights to match varying threshold conditions while maintaining structural integrity.
2Ease of operation
If adjustable weather stripping and seals are used, then vertical adjustment is possible, but the adjustment mechanism is complex and allows only one adjustment type
Solution Approach 1:
The adjustment mechanism is segmented into independent adjustment points at each end of the door sweep. Each end has its own connecting member that can move independently through apertures in the upper frame, allowing separate adjustment of left and right ends without affecting the other, simplifying the operation while maintaining adjustability.
Solution Approach 2:
The connecting members act as intermediaries between the lower carrier and the upper frame. These pins move through apertures to enable vertical adjustment of the lower carrier relative to the upper frame, providing a simple mechanical interface that achieves adjustment without complex mechanisms.
3Manufacturing precision
If fixed-height door sweeps are used, then manufacturing is simple, but they cannot accommodate uneven thresholds
Solution Approach 1:
The door sweep incorporates a dynamic adjustment capability where the lower carrier can move vertically relative to the upper frame. This allows the extensions to be positioned at different heights to precisely match uneven threshold surfaces, achieving high manufacturing precision in terms of fit without requiring complex manufacturing processes.
Solution Approach 2:
The door sweep allows change in the vertical position parameter of the extensions relative to the upper frame. By moving the connecting members through apertures, the height of the extensions can be adjusted to match varying threshold conditions, achieving precise fit through parameter adjustment rather than complex manufacturing.
Data Source
AI summary
An adjustable door sweep with an upper frame, a lower carrier, and at least one brush is provided. The adjustable door sweep includes diagonally oriented slots in the walls of the upper frame and the lower carrier with attached rotatable rods to assist in vertical adjustment of the extensions, such as brushes. The method of using such an adjustable door sweep is also provided.