Adjustable-Angle Hazard Detector Mount With Friction Rotation
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Solution Overview
Problem
Conventional mounting arrangements make it difficult for users to rotate non-circular sensors to visually pleasing orientations relative to walls or ceilings, as the orientation of such sensors is glaringly apparent and hard to adjust.
Innovation Solution
A surface mount system featuring a plate with a circular lip and sliders that allow non-indexed rotation of a sensor housing, utilizing a compressible ring for friction and tactile feedback to secure the sensor in place, enabling rotation of up to 65 degrees without disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional mounting arrangements are used, then the sensor is securely mounted to the surface, but the sensor cannot be easily rotated to desired orientations
Solution Approach 1:
The mounting system is divided into separate functional components: a stationary surface mount plate that provides secure attachment to the surface, and a rotatable sensor housing that can be independently positioned. The circular lip with lip gaps and sliders create distinct engagement zones that allow rotational movement while maintaining secure mounting through friction and mechanical interlocking.
Solution Approach 2:
The mounting system transitions from a static, fixed-position connection to a dynamic system that allows controlled rotation. The sliders moving along the circular lip enable the sensor housing to rotate to any desired angle within the range of motion, while the compressible ring maintains frictional engagement throughout the rotation to prevent unwanted movement.
2Shape
If the sensor housing is rotated to desired orientation, then aesthetic appeal is improved, but the mounting stability may be compromised
Solution Approach 1:
The compressible ring provides continuous frictional feedback during rotation, allowing the installer to feel the engagement and control the positioning of the sensor housing. The tactile feedback from the compressible ring and feedback nubs helps the installer determine when the desired orientation is achieved while maintaining secure engagement throughout the rotation process.
Solution Approach 2:
The system changes the friction parameter dynamically through the compressible ring, which maintains sufficient frictional force to prevent unwanted rotation while allowing controlled rotation when force is applied. The friction coefficient can be adjusted by compressing or releasing the ring, enabling both stable mounting and easy repositioning as needed.
3Adaptability or versatility
If non-indexed rotation is allowed, then flexibility in positioning is increased, but the complexity of the mounting mechanism increases
Solution Approach 1:
The circular lip with distributed lip gaps serves multiple functions: it guides the sliders during rotation, provides mechanical engagement points, and works with the compressible ring to maintain frictional contact. The sliders themselves serve dual purposes of engagement and rotation control. This multi-functionality reduces the need for separate complex indexing mechanisms while still providing controlled, flexible rotation.
Solution Approach 2:
The mounting system uses the rotation movement itself to engage and disengage the sliders with the lip gaps, eliminating the need for separate actuating mechanisms. The compressible ring automatically maintains frictional engagement during rotation without requiring additional control systems. The feedback nubs provide automatic tactile cues to the installer during the positioning process.
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
Enables users to easily rotate and position sensors to desired orientations, maintaining their position through friction, while allowing for airflow prevention and resistance to external forces, enhancing aesthetic appeal and installation convenience.
Implementation Method 1
the compressible ring is at least partially compressed and creates friction between the surface mount plate and the sensor housing
Implementation Method 2
The compressible ring, when the sensor housing is coupled with the surface mount plate, may substantially prevent air from passing between the surface mount plate and the sensor housing
Data Source
AI summary
Various arrangements of a surface mount system are presented herein. The system may include a surface mount plate. The surface mount plate may include a circular lip and nubs located along the circular lip. The system may also include a device housing. The device housing can include slider clips that removably clip to the circular lip of the surface mount plate when the plurality of slider clips are pushed against the circular lip. The slider clips can be disengaged from the circular lip of the surface mount plate when the device housing is rotated with respect to the surface mount plate such that the nubs located on the surface mount plate push the slider clips away from the circular lip.