Protruding-Portion Urinal for Female Stool Avoidance
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Solution Overview
Problem
Female public lavatories face inefficiencies due to the inability to distinguish between urine and stool, leading to longer waiting times and increased queuing, as existing urinals do not accommodate women's toileting habits effectively, especially during peak periods.
Innovation Solution
A special urinal design featuring a protruding portion opposite to the user's anus, with a sewage discharge port at the bottom and a water outlet hole for flushing, which prevents defecation by reducing the distance between the anus and the urinal's bottom, thereby allowing exclusive urination, and is integrated into a squatting or pedestal pan to differentiate between stool and urine areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing urinals are used in female public lavatories, then the basic function of urination is achieved, but the inability to distinguish between urine and stool leads to increased queuing time and reduced lavatory efficiency
Solution Approach 1:
The urinal is segmented into distinct functional zones: a urine collection area with a protruding portion that prevents stool contact, and a separate stool discharge area. This segmentation allows the single urinal to handle both urine and stool separately, improving lavatory efficiency by enabling faster throughput without cross-contamination.
Solution Approach 2:
The protruding portion creates a localized quality difference within the urinal - the central area has elevated protection against stool contact while the surrounding areas remain open for urine collection. This local quality enhancement ensures that urination can proceed quickly without the need for complete body coverage or prolonged positioning.
2Ease of operation
If women use traditional suspended urinals in a ski-like posture, then urination function is achieved, but body contact with the urinal surface increases discomfort and reduces ease of operation
Solution Approach 1:
The harmful contact area is extracted and removed from the urine collection path. The protruding portion acts as a barrier that prevents stool and surrounding contaminated areas from contacting the user's body, while maintaining open access for urine flow. This extraction of the harmful zone allows users to maintain a more comfortable posture with reduced body contact.
3Reliability
If the urinal design accommodates women's physiological structures, then the effectiveness of urine diversion is improved, but the device complexity increases due to the protruding portion and separate discharge areas
Solution Approach 1:
The urinal merges multiple functions into a single integrated structure: urine collection, stool diversion, and separate discharge paths all combine within one urinal unit. The protruding portion serves multiple purposes simultaneously - it acts as a physical barrier, a flow guide, and a structural divider. This merging approach achieves reliable urine diversion without proportionally increasing device complexity.
Data Source
AI summary
The present disclosure relates to the technical field of daily necessities, and provides a urinal, a squatting pan and a pedestal pan. The special urinal comprises a urinal, a sewage discharge port, a water inlet and a water outlet hole. The urinal has a first end adjacent to the sewage discharge port and a second end away from the sewage discharge port; the sewage discharge port is provided at the bottom of the urinal, the water outlet hole is communicated with the water inlet, the urinal is internally provided with a protruding portion that is used for being opposite to the anus of a user; one end of the protruding portion extends to the bottom of the urinal; and the water outlet hole is used for flushing the protruding portion. The present disclosure aims to solve the defect in the prior art that a female urinal cannot distinguish stool from urine. By providing the protruding portion, in the case of conforming to women's toileting habits, a stool avoidance function is achieved, and a user is prevented from defecating, thus achieving the purpose of women's urination. By using the special urinal, a female public lavatory can be provided with a stool area and a urine area, thus improving the overall toileting efficiency, reducing the number of people in a queue, and shortening the queuing and waiting time.