Formwork Box With Sealing Rosettes For Pipe Connections
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Solution Overview
Problem
Existing formwork boxes are limited in connecting protective tubes of different diameters, requiring multiple boxes and additional parts, which are unstable and time-consuming to assemble, and lack a sealing system to prevent concrete ingress.
Innovation Solution
A one-piece formwork box with integral sealing discs and a sealing rosette system that accommodates various diameters by using soft plastic rosettes and a dual-mat sealing assembly, ensuring tightness and eliminating the need for additional parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate formwork boxes are used to connect protective tubes of different diameters, then each tube can be connected individually, but the system becomes unstable and time-consuming to assemble
Solution Approach 1:
The formwork box is designed with multiple inlet openings of different diameters integrated into a single housing structure, allowing it to accommodate protective tubes of various diameters simultaneously. This universal design eliminates the need for multiple separate boxes while maintaining the ability to connect different tube sizes, thereby reducing assembly complexity and improving stability.
Solution Approach 2:
The patent combines multiple inlet openings with different diameters into one integrated formwork box structure. By merging what would traditionally require separate components into a single unified device, the invention reduces the number of parts, simplifies assembly, and creates a more stable system while preserving adaptability to different tube diameters.
2Adaptability or versatility
If inlet openings have different diameters to accommodate different pipeline sizes, then various pipe dimensions can be connected, but the possibilities are limited and positioning is precisely specified
Solution Approach 1:
The formwork box inlet side is segmented into multiple distinct inlet openings, each with a specific diameter designed for different pipe sizes. This segmentation allows each opening to be precisely positioned and sized for its intended pipe diameter, while the overall structure remains a single integrated component that is relatively simple to manufacture using standard molding techniques.
3Ease of operation
If protective tubes are connected to inlet openings, then pipe routing is enabled, but liquid concrete or concrete water can enter through the openings
Solution Approach 1:
A sealing rosette is introduced as an intermediary component between the inlet opening and the protective tube. This sealing element mediates the connection by providing a tight seal that prevents concrete and water from entering through the inlet opening, while still allowing the protective tube to be accessible and connected for its intended function.
Solution Approach 2:
The sealing rosette is made of flexible material that can deform to create a tight seal around the protective tube at the inlet opening. This flexible sealing film prevents concrete ingress while maintaining the operational accessibility of the tube, solving the contradiction between sealing and access.
4Reliability
If additional caps are used to cover inlet openings without protective tubes, then tightness is maintained, but additional effort and parts are required
Solution Approach 1:
The sealing function is merged into the formwork box structure itself through the sealing rosette that is integrated at each inlet opening. This eliminates the need for separate caps to cover unused openings, as the sealing rosette is already part of the box structure and provides continuous tightness whether a tube is connected or not.
Solution Approach 2:
The sealing rosette is designed to automatically provide tightness at each inlet opening without requiring additional components. When a protective tube is not connected, the sealing rosette remains in place and self-seals the opening, eliminating the need for separate caps and reducing the number of parts and assembly steps required.
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
Enables universal connection of protective tubes with different diameters, ensuring economical manufacturing and assembly while maintaining tightness against concrete ingress, reducing the complexity and instability of the system.
Implementation Method 1
a sealing rosette is arranged in the entry opening. This is preferably made of a soft plastic, which nestles against the outer diameter of the protective tube in order to ensure tightness
Data Source
Figure 1~2
Figure 3~4
AI summary
Formwork box for attachment to a formwork panel to provide a recess in walls or ceilings to be concreted, comprising a formwork housing, wherein the formwork housing has pipe guide channels, wherein the pipe guide channels serve to guide the inserted protective pipes, wherein the formwork housing has an entry side and a closing side and is preferably formed in one piece, wherein the entry side has entry openings for the insertion of the protective pipes, wherein the entry openings are closed by closing discs, wherein the closing discs are integrally arranged on the entry side and preferably the formwork housing with the closing discs arranged on the entry side is formed in one piece, wherein the entry openings have sealing rosettes to ensure tightness between the formwork housing and the inserted protective pipe.