Plastic Pool Wall Reinforcement via Integrated Seals
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Solution Overview
Problem
Conventional plastic inflatable swimming pools suffer from water leakage due to weak welding seams and inadequate reinforcement, as the reinforcing sheet does not form a closed loop and the welding interface is too narrow, leading to insufficient protection against water pressure.
Innovation Solution
The reinforcing sheet is integrated with the connecting sheet to form a closed loop around the pool wall, with staggered welding seams and a widened interface (>80 mm) reinforced with seals, and equilateral triangle notches to enhance bonding and resistance to external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a narrow welding interface is used to connect sidewall and connecting sheet, then the structure is simpler and easier to manufacture, but the welding seam becomes weak and prone to water leakage under water pressure
Solution Approach 1:
The patent merges the reinforcing sheet with the connecting sheet by integrating them into a single unified component. This integration creates a wider welding interface and ensures that the reinforcing material is continuously bonded to both the sidewall and connecting sheet, eliminating gaps and ensuring reliable water leakage protection while maintaining manufacturing simplicity.
Solution Approach 2:
The patent extends the welding interface in the horizontal dimension by making the reinforcing sheet wider than the connecting sheet. This dimensional expansion creates a broader bonding area between the sidewall and connecting sheet, distributing water pressure over a larger area and preventing leakage at the welding seam.
2Ease of manufacture
If the reinforcing sheet is separate from the connecting sheet, then the manufacturing process is simpler, but the reinforcing sheet cannot form a closed loop and provides insufficient reinforcement
Solution Approach 1:
The patent combines the reinforcing sheet and connecting sheet into a single integrated component that forms a continuous closed loop around the pool wall. This integration ensures that the reinforcing material provides continuous reinforcement without gaps, while the unified structure simplifies assembly by reducing the number of separate components to be joined.
Solution Approach 2:
The integrated reinforcing sheet maintains continuous bonding along the entire perimeter of the pool wall, forming an unbroken loop that provides consistent reinforcement. This continuity ensures that water pressure is distributed evenly around the entire pool wall, preventing localized weakness and leakage.
3Device complexity
If the welding seam is located at the lower part of the pool where water pressure is highest, then the structure is more compact, but the welding seam承受s the largest water pressure and is most prone to leakage
Solution Approach 1:
The patent positions the welding seam in the horizontal dimension at the bottom of the pool where water pressure is highest, but compensates by extending the welding interface horizontally to create a wider bonding area. This dimensional redistribution allows the seam to be located at the critical low point while distributing pressure over a broader area to prevent leakage.
Solution Approach 2:
The patent applies reinforcing seals and extends the welding interface in advance at the critical lower portion of the pool where water pressure is highest. This preliminary reinforcement at the most vulnerable location prevents leakage before water pressure can cause failure, addressing the high-stress area proactively rather than reactively.
Data Source
AI summary
A plastic swimming pool with an enhanced structure comprises a pool wall, a connecting sheet, a base sheet and an inflatable ring, said pool wall is connected with the base sheet via the connecting sheet, the inflatable ring is mounted on a top of the pool wall, said pool wall is formed by connecting a plurality of sidewalls at both sides of them with each other into a loop, the connecting sheet is bonded to the inner side of the lower portion of the pool wall, the connecting sheet is formed by connecting a plurality of material sheets at both sides of them with each other into a loop as well, the welding seams between the sidewalls and the welding seams between the material sheets of the connecting sheet are staggered; the width of an interface for welding the sidewalls and the connecting sheet is more than 80 mm and reinforcing seals are provided in the interface where the sidewalls and the connecting sheet are bonded, and a bottom ring of the connecting sheet is connected directly with the base sheet. The advantage of the present invention is that the reinforcing sheet is integrated with the connecting sheet, meanwhile, the material sheets having reinforcing function become a closed loop around the pool wall, hence, the pool wall is reinforced, the welding seams are protected and possibility of water-leaking is decreased.