Monolithic Anti-Ligature Flush Valve Cover Design
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Solution Overview
Problem
Commercial toilet flush valves pose ligature hazards due to exposed plumbing and lack of effective anti-ligature designs, particularly in institutional settings where safety is a concern, as existing solutions either fail to completely cover the valve or have seams and connection points that can be accessed or broken, increasing the risk of ligature points.
Innovation Solution
A monolithic, hollow anti-ligature toilet flush valve cover system with internal brackets and connectors that securely attach to a solid surface, eliminating seams and providing a continuous edge to prevent access, combined with a push button activation assembly that replaces the traditional lever, reducing the risk of ligature points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a monolithic hollow flush valve cover is used, then ligature risk is reduced by eliminating seams and attachment points, but maintenance access becomes more difficult
Solution Approach 1:
The cover is segmented into a monolithic hollow structure that encloses the flush valve, creating a seamless exterior surface that eliminates ligature points while maintaining internal accessibility for maintenance through designated service ports or removable sections
2Reliability
If the cover is made robust to withstand breaking attempts, then safety is improved, but the cover may be more difficult to remove for maintenance
Solution Approach 1:
The cover is pre-engineered with concealed release mechanisms or service ports that allow authorized maintenance personnel to open the cover from the interior side, enabling easy removal for maintenance while presenting a robust, seamless exterior that resists unauthorized access and breaking attempts
3Object-affected harmful factors
If the bottom edge of the cover rests on the toilet fixture without overhanging, then ligature risk is reduced, but the cover may be less stable
Solution Approach 1:
The cover transitions from a two-dimensional flat surface to a three-dimensional hollow structure that wraps around the flush valve assembly, with the bottom edge resting on the toilet fixture to eliminate ligature points while the vertical walls and mounting system provide enhanced stability
Data Source
AI summary
There are disclosed embodiments for an anti-ligature flush valve cover. For example, a one-piece flush valve cover is mounted to a solid surface using internal brackets to completely cover a toilet flush valve. A portion of the bracket is recessed from parts that contact the interior of the cover, so that a connector inserted into an opening on the bracket surface contacts the opening spaced away from the interior of the flush valve cover. The cover has a bottom edge that does not extend beyond the edges of the toilet fixture. Structure for a push button assembly for flushing the toilet is also disclosed.