Adjustable Pool Floor Hydraulics With External Cylinder Sealing
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Solution Overview
Problem
Existing hydraulic systems for adjustable swimming pool floors face issues such as oil leakage contaminating the pool water, difficult access for maintenance, and complex installation due to the placement of hydraulic cylinders inside the pool.
Innovation Solution
A hydraulic system with a cylinder barrel positioned externally to the pool, featuring a piston rod that extends into the pool with a sealing arrangement to prevent leakage and contamination, and a movement transfer arrangement using a pulley system to adjust the pool floor height, allowing for easier maintenance and installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the hydraulic cylinder barrel is located inside the swimming pool, then the pool floor can be adjusted to the desired depth, but oil may leak into the pool water contaminating it and making it unsuitable for swimming
Solution Approach 1:
The hydraulic cylinder barrel is extracted from the pool interior and relocated to the exterior of the pool wall. The piston rod extends through a sealed opening in the pool wall to transmit force while preventing oil leakage into the pool water. This spatial separation eliminates the contamination risk while preserving the depth adjustment function.
Solution Approach 2:
A sealing arrangement acts as an intermediary between the hydraulic system and the pool water. The seal prevents direct contact between the hydraulic oil and pool water, allowing the piston rod to transmit force through the pool wall while blocking contamination pathways.
2Ease of operation
If the hydraulic cylinder is located inside the pool, then the pool floor can be adjusted, but access to the cylinder for installation, servicing and replacement is complicated
Solution Approach 1:
The hydraulic cylinder barrel is extracted from the difficult-to-access interior location and positioned in the exterior space adjacent to the pool. This relocation provides easy access for installation, maintenance, and replacement operations while the piston rod continues to extend into the pool through a sealed opening to perform the floor adjustment function.
3Ease of manufacture
If the cylinder barrel slides in the wall opening, then the hydraulic system can be installed, but safety devices to prevent overload are difficult to install adjacent to the cylinder barrel
Solution Approach 1:
The cylinder barrel is extracted from the constrained wall opening location and positioned in the exterior space where there is ample room for installing safety devices, overload protection mechanisms, and other auxiliary components adjacent to the cylinder barrel.
4Ease of operation
If the cylinder barrel extends into the pool, then the pool floor can be adjusted, but cleaning the contaminated water and parts is tedious and expensive
Solution Approach 1:
The hydraulic cylinder barrel is extracted from the pool interior to the exterior, eliminating the source of contamination. Without oil leakage into the pool water, there is no contamination to clean, thereby eliminating the time and expense associated with cleaning contaminated water and pool components.
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
Prevents contamination of the pool water, simplifies maintenance and installation by keeping the hydraulic components outside the pool, and ensures safe and efficient operation of the adjustable pool floor system.
Implementation Method 1
a sealing arrangement enclosing the first part of the piston rod remote from the cylinder head, whereby the sealing arrangement is connectable to the peripheral pool wall enclosing the swimming pool... The sealing arrangement prevents leakage of liquid from the swimming pool to the exterior side of the pool wall and also prevents contamination from entering the pool along the piston rod
Implementation Method 2
The hydraulic system comprises a hydraulic cylinder, comprising a cylinder barrel with a cylinder head and cylinder cap, a piston slideably arranged within the cylinder barrel and a piston rod carried by the piston... movement of the hydraulic cylinder is transferred to the pool floor
Implementation Method 3
a buoyant pool floor adjustable in a height direction relative to a pool bottom of the swimming pool
Data Source
Figure 1
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Figure 3
AI summary
The invention relates to an adjustable swimming pool floor system (40). In addition, the invention relates to a swimming pool (5) comprising such an adjustable pool floor system. Furthermore, the invention relates to a method for installing the hydraulic system (1) in a swimming pool. The invention also relates to a hydraulic system for use in an adjustable swimming pool floor system.