Configurable animal house ceiling vent
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Solution Overview
Problem
Existing ceiling vents in animal houses lack configurability, limiting efficient airflow and circulation, as they typically rely on simple gravity and cable mechanisms that do not allow for customizable air direction.
Innovation Solution
A ceiling vent assembly with a pair of control rods, opposed end and side panels, and a pulley assembly with vertically-oriented pulleys and a center pulley block, allowing for multiple cable routing configurations to control louvers, enabling customizable operation with either one or two control rods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a simple cable mechanism is used to control louvers, then the device complexity is reduced, but the adaptability of airflow direction is limited
Solution Approach 1:
The pulley assembly is segmented into multiple pulleys (first pulley, second pulley, third pulley, fourth pulley) with distinct functions. Each pulley handles specific cable routing for different louver configurations, allowing the system to achieve complex airflow control through modular, manageable components rather than a single complex mechanism.
Solution Approach 2:
The pulley assembly serves multiple functions: it controls individual louvers independently, controls multiple louvers together, and enables various airflow patterns (inward, outward, upward, downward). This multi-functionality allows a single assembly to replace what would otherwise require multiple separate control mechanisms.
2Adaptability or versatility
If multiple control rods are used to control different louvers, then the adaptability of louver operation is improved, but the ease of operation is reduced
Solution Approach 1:
Multiple control functions are merged into a single control rod through the pulley assembly. The pulley system routes cables from multiple louvers to a common control rod, allowing one operator to control multiple louvers simultaneously or independently, combining the functionality of multiple control rods into one.
Solution Approach 2:
The pulley assembly acts as an intermediary between the control rod and the louvers. It translates the motion of a single control rod into coordinated motion of multiple louvers, mediating the control relationship and simplifying operation while maintaining flexibility.
3Adaptability or versatility
If cables are routed through multiple pulleys, then the adaptability of cable routing is improved, but the device complexity increases
Solution Approach 1:
The cable routing system uses a nested arrangement where cables pass through multiple pulleys in sequence (first pulley, then second pulley, or third pulley, then fourth pulley). Each pulley stage adds a level of control flexibility, with the cable path nested within the pulley assembly structure, allowing complex routing through organized, hierarchical component arrangement.
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 configuration allows for enhanced airflow management by enabling customizable louver operation, improving air circulation and direction within animal houses, allowing for more efficient ventilation.
Implementation Method 1
The pulley assembly includes a first vertically-oriented pulley and a second vertically-oriented pulley spaced apart from one another, and a center pulley block having at least one horizontal pulley
Implementation Method 2
The louvers of ceiling vents typically move to an open position by force of gravity
Data Source
AI summary
A ceiling vent assembly incudes a ceiling vent having a pair of opposed end panels and a pair of opposed side panels, which define a frame that is open at its top and bottom. The frame receives two louvers pivotally mounted so as to be movable between open and closed positions. The ceiling vent assembly also includes first and second cables attached to the first and second louvers and a pulley assembly having a pair of vertically-oriented pulleys and a center pulley block having at least one horizontal pulley. The horizontal pulley has two vertically offset cable guides. Control rods pass through aligned rod openings in the end panels and pulley block. The pulley block has cable routing holes adjacent to each of the cable guides. The first cable is routed from the first louver, around the first vertical pulley, around one of the cable guides and then to one of the control rods, and the second cable is routed from the second louver, around the second vertical pulley, around the other one of the cable guides and then to one of the control rods such that the cables can be selectively routed so that the louvers can be controlled by either one of the control rods.