Fire Detector Base Water Discharge Design
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Solution Overview
Problem
Conventional fire detectors fail to effectively discharge water from the base to the outside when it accumulates on the bottom wall, leading to potential wetting of internal components.
Innovation Solution
A fire detector base with a tubular circumference wall and a water collecting surface, featuring inclined surfaces and holes that guide water to the outside, preventing it from entering the detector body and ensuring efficient discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional base structure is used without water discharge features, then the structure is simple, but water accumulates on the bottom wall and cannot be discharged to the outside
Solution Approach 1:
The base is segmented into functional zones: a water collecting surface (annular groove) surrounds the detector body, an inclined surface directs water toward the groove, and discharge holes provide exit paths. This segmentation allows water to be collected, directed, and discharged through distinct structural elements, solving the water accumulation problem while maintaining reasonable structural complexity.
Solution Approach 2:
The invention introduces a radial dimension for water discharge by creating annular grooves and radial inclined surfaces, rather than only vertical drainage. Water flows radially outward from the center toward the annular groove and discharges through holes in the radial direction, adding a dimensional pathway for water removal that prevents accumulation.
2Reliability
If water discharge holes are added to the base, then water can be discharged effectively, but the base structure becomes more complex
Solution Approach 1:
The base structure serves multiple functions: it provides mechanical support for the detector body, creates a water collecting annular groove, forms inclined surfaces for water direction, and incorporates discharge holes. By integrating these functions into a single multi-functional base structure, the invention avoids the need for separate water discharge components, thereby limiting the increase in overall device complexity.
3Reliability
If an inclined surface is created to guide water, then water flows toward the discharge holes effectively, but manufacturing precision requirements increase
Solution Approach 1:
The inclined surface is provided only in the specific region where water guidance is needed (between the detector body and the annular groove), rather than across the entire base. This localized approach allows the inclined surface to be formed with appropriate precision only where critical, while other areas of the base can be manufactured with standard tolerances, thereby limiting the overall impact on manufacturing precision requirements.
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 design ensures water is discharged to the outside, preventing internal components from getting wet and maintaining the detector's functionality.
Implementation Method 1
The inclined surface is inclined to be closer to the second surface at its end adjacent to the water collecting surface than at its end remote from the water collecting surface
Implementation Method 2
The inclined surface is inclined to be closer to the second surface at its end adjacent to the water collecting surface
Implementation Method 3
The hole penetrates from the water collecting surface to an outside of the pedestal, that is, the space outside the inside space of the circumference wall
Data Source
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AI summary
An object of the present invention is to provide a fire detector base and a fire detector, which, when water is on a first surface of a bottom wall of the fire detector base, can guide the water in the fire detector base to discharge the water to the outside of the fire detector. A pedestal (4) includes a bottom wall (40) and a first circumference wall (82). The first circumference wall (82) protrudes from a circumferential edge (81) of the bottom wall (40). The pedestal (4) further includes a water collecting surface (742) and a hole (95, 96). The water collecting surface (742) is adjacent to a first surface (44) in a direction orthogonal to a protruding direction (821). The hole (95, 96) penetrates from the water collecting surface (742) to an outside of the pedestal (4). The first surface (44) includes an inclined surface (745). The inclined surface (745) is inclined to be closer to a second surface (45) at its end adjacent to the water collecting surface (742) than at its end remote from the water collecting surface (742) along the direction orthogonal to the protruding direction (821).