Floor Bollard with Movable Connector and Spring
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Solution Overview
Problem
Existing bollards for floor installation are limited in their ability to absorb and attenuate external shock in all directions, which can lead to damage and collapse of nearby structures such as shelf racks during collisions.
Innovation Solution
A bollard design that includes a base installed on the ground, an intermediate outer cylinder, a connector fitted through the base and cylinder, a spring fitted on the connector, and an extension outer container coupled to the intermediate cylinder, allowing the bollard to incline and absorb impact while returning to its initial upright state through elasticity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bollard is installed upright on the ground with a fixed structure, then it can prevent local deformation of the supporting pipe, but it has limited ability to absorb impact in all directions
Solution Approach 1:
The bollard incorporates a movable connector that can tilt and rotate relative to the base, transforming the fixed structure into a dynamic one. The connector is connected to the base through a pivot point, allowing it to move freely in response to impact forces from any direction, thereby improving impact absorption capability while maintaining relatively simple structural composition
Solution Approach 2:
The connector is made of soft material that can be compressed or deformed in the collision direction. This change in material parameter (from rigid to soft/compressible) enables the connector to maximize impact attenuation effect while minimizing damage from external forces
2Reliability
If a rigid connector is used in the bollard, then it provides structural stability, but it cannot effectively attenuate impact in all directions
Solution Approach 1:
The connector is made of soft material that can be compressed or deformed in the collision direction. This change in material parameter (from rigid to soft/compressible) enables the connector to maximize impact attenuation effect while minimizing damage from external forces
Solution Approach 2:
The connector is designed to move and deform dynamically in response to impact forces. It can tilt and rotate relative to the base, and its soft material allows compression and deformation during collision, transforming a static rigid structure into a dynamic energy-absorbing component
3Duration of action of stationary object
If a fixed upright bollard is installed, then it can provide pedestrian protection, but it cannot return to initial position after impact
Solution Approach 1:
The connector is designed to move and deform dynamically in response to impact forces. It can tilt and rotate relative to the base, and its soft material allows compression and deformation during collision, transforming a static rigid structure into a dynamic energy-absorbing component
Solution Approach 2:
The connector is made of soft material that can be compressed or deformed in the collision direction. This change in material parameter (from rigid to soft/compressible) enables the connector to maximize impact attenuation effect while minimizing damage from external forces
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 bollard effectively absorbs and attenuates impact in all directions, minimizing damage from external forces and extending the lifespan of the bollard by utilizing the spring's elasticity to return to its initial position.
Implementation Method 1
since a spring is installed therein, the bollard can be returned into the initial upright state by elasticity simultaneously with inclining in an external force application direction
Implementation Method 2
the connector made of a soft material in the intermediate outer cylinder is compressed or deformed in the collision direction, so it is possible to maximize the impact attenuation effect
Data Source
AI summary
A bollard for floor installation that includes: a base that is installed on the ground; an intermediate outer cylinder that is installed on the top of the base; a connector that is fitted in the base through the internal space of the intermediate outer cylinder; a spring that is fitted on the connector; and an extension outer container that extends a length by being coupled to the intermediate outer cylinder.