Formwork Anchor Receptacle With Pivoting Seal Support
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Solution Overview
Problem
Existing concrete formwork systems face challenges in achieving a tight and secure connection of formwork anchors from the inside while accommodating misalignments without complex sealing requirements and precise processing.
Innovation Solution
A formwork element design featuring an insert pot with a sealing ring and flexible retaining ring system that allows limited pivoting of the anchor mount, ensuring a tight seal and accommodating misalignments, along with a bayonet lock for easy handling and a nut thread for secure anchoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a ball joint support is used for the anchor mount, then misalignment compensation is achieved, but the construction effort and processing precision requirements increase
Solution Approach 1:
The patent employs a flexible sealing ring instead of a rigid ball joint support. The sealing ring can deform elastically to accommodate misalignments between the anchor end and the anchor receptacle, providing adaptability without requiring complex processing. The flexibility of the sealing ring allows it to conform to slight positional variations while maintaining a tight seal.
Solution Approach 2:
The patent changes the physical state of the sealing ring from rigid to flexible, allowing it to undergo elastic deformation. This parameter change enables the sealing ring to adapt to misalignments by deforming under the anchor end, thereby compensating for position variations without requiring precise machining or complex assembly procedures.
2Reliability
If a tight sealing connection is ensured from the inside of the formwork, then connection reliability is improved, but the complexity of the sealing system increases
Solution Approach 1:
The sealing ring is designed to be self-sealing through its elastic properties. When the anchor end is inserted, it automatically compresses the sealing ring against the anchor receptacle, creating a tight seal without requiring additional sealing mechanisms or complex assembly steps. The system uses the insertion force itself to activate the sealing function.
Solution Approach 2:
The sealing ring acts as a flexible element that deforms under the anchor end to create a tight seal. This simple flexible component provides reliable sealing without requiring complex multi-component sealing systems, maintaining connection reliability while minimizing device complexity.
3Manufacturing precision
If the anchor mount is fixed rigidly in the insert pot, then positioning precision is improved, but the ability to accommodate misalignments deteriorates
Solution Approach 1:
The sealing ring provides a flexible connection between the anchor end and the anchor receptacle. While the anchor receptacle is rigidly positioned in the insert pot for manufacturing precision, the sealing ring allows for slight misalignments by deforming elastically, thereby accommodating position variations without compromising the fixed positioning of the anchor mount.
Solution Approach 2:
The system transitions from a completely rigid connection to a semi-flexible connection where the sealing ring can deform dynamically to accommodate misalignments. The anchor receptacle remains fixed for positioning precision, while the sealing ring provides the necessary flexibility to absorb position variations during assembly.
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
The solution provides a simple, secure, and misalignment-compensating connection of formwork anchors, maintaining a tight seal under tensile loads and varying anchor positions, enhancing the structural integrity and ease of assembly.
Implementation Method 1
the sealing ring tightly encloses the end of the anchor and is held under prestress between the bottom of the pot and the supporting end of the anchor receptacle
Implementation Method 2
a sealing ring (11) interposed, by which the armature end (7) is enclosed in a tight manner
Implementation Method 3
a flexible retaining ring (13), which engages in an annular groove (14) in the region of the supporting end of the anchor receptacles (9, 10)
Implementation Method 4
particularly simple handling conditions result if the holder is held in the insert pot using a bayonet lock
Implementation Method 5
the recess can have a conical end face sloping outwards, which due to these shape specifications is determined by the supporting end of the Anchor recording forces an advantageous deformation behavior of the sealing ring
Implementation Method 6
a tensile load on the formwork tie increases the prestressing of the sealing ring and thus improves the sealing effect
Data Source
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AI summary
A device for receiving a formwork anchor (3) in a formwork element (1, 2) of a concrete wall formwork is described, comprising a formwork-fixed insert pot (4), the bottom (5) of which, facing the inside of the formwork, has a passage opening (6) for an anchor end (7, 8) that is held in a displacement-resistant manner within the insert pot (4) in an anchor receptacle (9, 10), and a bracket (12) for the anchor receptacle (9, 10) which is supported with limited pivotability relative to the bottom of the pot (5). To ensure advantageous design conditions, it is proposed that the anchor receptacle (9, 10) is supported on the bottom of the pot (5) by means of a sealing ring (11) that tightly surrounds the anchor end (7, 8) and forms an annular groove (14) in the area of its supporting end, into which a flexible retaining ring (13) of the bracket (12) engages.