Formwork Box Pipe Fixation Latching Mechanism

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Solution Overview

Problem

Existing formwork boxes for sanitary installations with protective pipes lack simplicity and safety in assembly, as protective tubes can be accidentally pulled out during further assembly work, and existing solutions do not provide secure fixation or sealing against concrete penetration.

Innovation Solution

A formwork box with latching means arranged at the end of the pipe guide channel, featuring barb-like locking elements and a sealing membrane that engages with the pipe's groove for secure fixation and sealing, ensuring automatic latching and audible confirmation of correct insertion, and accommodating various pipe diameters with multiple pipe guide channels for dense arrangement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If protective tubes are inserted into the pipe guide channel without latching means, then the assembly process is simpler, but the protective tubes can be accidentally pulled out during further assembly work

Engineering Contradiction:

Improveassembly simplicityVSAvoidfixation security

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The latching means are designed to automatically engage with the protective tube when it is inserted into the pipe guide channel, without requiring additional manual operations. The latching elements protrude into the channel and automatically catch on the tube, providing secure fixation as a self-activating feature of the insertion process itself.

Inventive Principle:

Principle #25Self-service

2Reliability

If latching means are arranged in the pipe guide channel, then the protective tube is securely fixed, but the assembly process becomes more complex

Engineering Contradiction:

Improvefixation securityVSAvoidassembly complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The latching means are integrated directly into the housing structure of the formwork box, with latching elements that protrude into the pipe guide channel. This merging of the latching function into the housing itself avoids adding separate, complex latching mechanisms while still providing secure fixation.

Inventive Principle:

Principle #5Merging (Combining)

3Object-affected harmful factors

If sealing means are arranged in the opening, then concrete penetration is prevented, but the manufacturing complexity increases

Engineering Contradiction:

Improveconcrete penetration preventionVSAvoidmanufacturing simplicity

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The sealing means are designed as a sealing membrane that can be arranged in the opening of the housing. This flexible membrane provides effective sealing against concrete penetration while being simpler to manufacture and install compared to rigid sealing structures.

Inventive Principle:

Principle #30Flexible shells and thin films

4Productivity

If multiple pipe guide channels are provided in parallel planes, then a dense arrangement of pipes is achieved, but the housing complexity increases

Engineering Contradiction:

Improvepipe arrangement densityVSAvoidhousing complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The housing is designed with pipe guide channels arranged in two mutually parallel planes, utilizing the third dimension (vertical stacking of planes) to achieve dense pipe arrangement. This spatial organization allows multiple pipes to be accommodated in a compact volume without excessive horizontal spread.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

Data Source

PatentEP2194212B1Pipe casing

Publication Date: 2012.02.15 GEBERIT INT AG

Figure 1~4
Figure 5
Figure 6~7

AI summary

The mold box (1) has housing (2), which is fastened on a mold (19). A wall exit is formed in the housing for a pipe (20) introduced in a pipe guiding channel (9) of the housing. A rest medium (11) is arranged in the pipe guiding channel. The pipe is fixed with the rest medium in the pipe guiding channel in extracting direction.