Modular Swimming Pool Stair Formwork with Interlocking Hollow Blocks

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Solution Overview

Problem

Existing methods for constructing swimming pool stairs using modular formwork require support piles, making the process complex and difficult to implement on-site.

Innovation Solution

A modular block design with interlocking side panels and hollow casting chimneys allows for the construction of swimming pool stairs without support piles, using male and female attachment means, hooks, and notches for assembly, and micro-perforated plastic material for lightweight construction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If modular elements with hooking means are used for constructing swimming pool stairs, then the stairs can be assembled on-site, but support piles are required which increases device complexity and installation difficulty

Engineering Contradiction:
Improveon-site assembly capabilityVSAvoidsupport pile requirement
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The invention merges the support function into the modular block structure itself by creating an interlocking system where blocks connect directly to each other through complementary hollow spaces and protruding elements. This eliminates the need for separate support piles, as the blocks mutually support each other through their integrated connection geometry.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The invention implements nesting by having one modular block insert into the hollow space of another block, with protruding elements from one block fitting into the hollow space of the adjacent block. This nested arrangement creates self-supporting connections without requiring external support structures.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Reliability

If traditional formwork methods are used for swimming pool construction, then structural integrity is ensured, but the construction process is tedious and time-consuming

Engineering Contradiction:
Improvestructural integrityVSAvoidconstruction speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The invention divides the formwork into standardized modular blocks that can be quickly assembled and disassembled. Each block is a self-contained unit with standardized connection interfaces, enabling rapid on-site assembly while maintaining structural integrity through the interlocking design and concrete integration.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The modular blocks are manufactured in advance with pre-formed hollow spaces, protruding elements, and connection geometries. This preliminary preparation of standardized components allows for rapid on-site assembly without requiring complex field fabrication or adjustment, significantly improving construction productivity.

Inventive Principle:
Principle #10Preliminary action

3Ease of manufacture

If stairs are constructed using assembled plates and studs, then the steps can be formed, but the process is tedious and preferably carried out in the factory rather than on-site

Engineering Contradiction:
Improvestep formation capabilityVSAvoidon-site implementation difficulty
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The modular blocks are designed with multi-functionality, serving both as structural formwork elements and as step-forming components. The hollow spaces and protruding elements simultaneously provide structural connection and define the step geometry, eliminating the need for separate step-forming operations and enabling on-site implementation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The nested arrangement of blocks with protruding elements fitting into hollow spaces automatically creates the step geometry during assembly. The interlocking structure inherently forms the stair configuration without requiring separate step-forming operations, enabling straightforward on-site construction.

Inventive Principle:
Principle #7Nested doll (Nesting)

Data Source

PatentEP2681383B1Modular block forming a permanent formwork element for the construction of a portion of a swimming pool, particularly the stairs
Publication Date: 2019.04.10 INNOVATION POOL FACTORY
  • EP2681383B1 patent drawingFigure 1a~1c
  • EP2681383B1 patent drawingFigure 2a~2b
  • EP2681383B1 patent drawingFigure 2c~3a

AI summary

The invention essentially relates to a modular block (1) forming a permanent formwork element for the construction of a portion of a swimming pool, particularly the stairs, comprising: a side board (5) provided with a tab (7) extending along a longitudinal side (2.1) of the main surface (2); and a hollow space (8) located on the opposite side of the side board (5) with respect to the main surface, such that a side board (5) of another modular block can engage with the interior of the hollow space by means of nesting. The block (1) also preferably comprises hooks (15) and male (12) and female (13) attachment means for facilitating the assembly thereof to other adjacent modular blocks (1) of the staircase.