Retractable Bollard Light Structure for Obstruction-Free Pathways
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Solution Overview
Problem
Conventional bollard lights installed outdoors can obstruct vehicle and pedestrian movement, limiting accessibility for vehicles and individuals with mobility issues.
Innovation Solution
A retractable bollard light design that retracts underground when not in use, featuring a tubular shell set with a movable main body and light source assembly, allowing for upward extension and downward retraction, and incorporating a power module for controlled operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional bollard lights are installed outdoors to illuminate pathways and landscapes, then illumination function is provided, but vehicle and pedestrian movement is obstructed
Solution Approach 1:
The bollard light is designed with a movable main body that can dynamically change its position between extended (illuminating) and retracted (non-obstructing) states. The moving assembly enables the light to transition between these positions, allowing it to provide illumination when needed while avoiding obstruction of vehicle and pedestrian pathways when not in use.
Solution Approach 2:
The bollard light is divided into separate functional modules: a stationary shell set embedded in the ground, a movable main body containing the light source, and a moving assembly that connects them. This segmentation allows the light source to be independently moved relative to the shell set, enabling the light to be extended for illumination or retracted to avoid obstruction without affecting the structural integrity of the installation.
2Illumination intensity
If bollard lights are installed beside driveways to provide illumination, then pathway illumination is improved, but the width available for vehicles is limited
Solution Approach 1:
The bollard light transitions from a static obstruction to a dynamic element that can move out of the way. When a vehicle approaches, the light retracts into the shell set, dynamically increasing the available width for vehicle passage. When illumination is needed, the light extends to provide pathway lighting without permanently reducing vehicle access width.
3Illumination intensity
If bollard lights are installed on lawns to illuminate the area, then landscape illumination is provided, but mower operation is affected
Solution Approach 1:
The movable main body can be retracted into the shell set when not in use, creating a flat, non-obtrusive surface that does not interfere with lawn mower operation. When illumination is required, the light source extends upward from the shell set, providing landscape illumination without leaving a permanent physical barrier in the lawn area.
4Illumination intensity
If bollard lights are installed by pedestrian pathways to provide illumination, then pathway lighting is improved, but movement of wheelchairs and visually impaired individuals is affected
Solution Approach 1:
The bollard light retracts into the shell set when not providing illumination, creating a smooth, level surface that does not obstruct wheelchairs or assistive devices. When pathway lighting is needed, the light extends to illuminate the path while maintaining an unobtrusive profile that does not interfere with the movement of pedestrians with mobility challenges.
Data Source
AI summary
A retractable bollard light has a shell set and a main body. The shell set is configured to be set underground. The shell set includes an outer shell, an inner shell, and a top cover. The inner shell is in the outer shell, and the top cover is mounted on the outer shell and the inner shell. The top cover has a top opening formed through a top surface and a bottom surface. The main body has a moving assembly, a light source assembly, and a power module. The moving assembly is in the inner shell and is movable with respect to the inner shell. The light source assembly moves with the moving assembly out of the inner shell through the top opening. The power module is electrically connected to the moving assembly and the light source assembly. The retractable bollard light may be retracted when not in use.