Insert Bolt Anti-Turn Mechanism for Concrete Casting
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Solution Overview
Problem
Existing insert bolts fail to securely fix the bolt shaft to the connecting rod during concrete casting, leading to potential loosening and inclination issues due to lack of adequate pressure dispersion and secure coupling, especially when external forces are applied.
Innovation Solution
The insert bolt features a bolt shaft with one-way teeth that disperse pressure through an inclined surface and aggregate it vertically to create a rotational force for tightening, combined with a latching protrusion on the supporting rib member to securely fix the bolt shaft and connecting rod, preventing loosening and ensuring proper coupling even when not deeply inserted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the insert bolt uses separate washer and supporting rod components, then the assembly is easier to manufacture, but the bolt shaft is not securely fixed and can move transversely when external force is applied
Solution Approach 1:
The patent integrates the washer and supporting rod into a single integrated component that combines both functions. This merged structure provides both the washing function and the supporting function simultaneously, preventing transverse movement of the bolt shaft while maintaining ease of manufacture through a unified design.
2Productivity
If the spring is compressed to push the washer upward for fastening, then the insert bolt can be installed quickly, but the bolt shaft can still move and become inclined under external force
Solution Approach 1:
By merging the washer and supporting rod into one integrated component, the structure maintains quick installation through spring compression while simultaneously preventing bolt shaft movement and inclination, thus maintaining both productivity and stability.
3Device complexity
If the insert bolt is installed without a transverse movement prevention structure, then the device complexity is reduced, but the bolt shaft moves when external force is applied during concrete casting
Solution Approach 1:
The integrated washer-supporting rod structure prevents transverse movement without adding separate components, maintaining simple device complexity while ensuring reliable fixation during concrete casting operations.
4Ease of operation
If the bolt shaft can rotate during concrete casting, then the installation process is simpler, but the bolt shaft loosens from the connecting rod
Solution Approach 1:
The one-way teeth structure is pre-configured on the bolt shaft to prevent rotation in the loosening direction during concrete casting. This preliminary anti-action mechanism maintains connection reliability while allowing simple installation operations.
5Force
If the pressure from concrete casting is concentrated on a small area, then the fastening force is stronger, but the bolt shaft becomes inclined and misaligned
Solution Approach 1:
The supporting structure is segmented into multiple supporting ribs that distribute the concrete casting pressure across a wider area. This segmentation maintains sufficient fastening force while preventing bolt shaft inclination and ensuring alignment precision.
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 effectively prevents the bolt shaft from rotating and loosening from the connecting rod during concrete casting, ensuring secure fixation and easy coupling to steel structures, thereby preventing leveling errors and structural misalignment.
Implementation Method 1
a spring (200) coupled to an outer side of the bolt shaft to perform an elastic function
Implementation Method 2
the one-way teeth (111) includes an inclined surface (111a) and a vertical surface (111b), such that, when an external pressure is applied due to concrete casting, the concrete casting pressure is dispersed through the inclined surface (111a) and the concrete casting pressure is aggregated through the vertical surface (111b) such that a rotating force is created only in a direction in which the bolt shaft tightens onto the connecting rod
Implementation Method 3
the disc-shaped head part has one-way teeth (111), a lower part of the central shaft (120) has a screw thread (121)
Data Source
AI summary
The present invention relates to an insert bolt, and more particularly, to an insert bolt having an anti-turn function, in which one-way teeth are formed on a bottom surface of a bolt head constituting the insert bolt, such that a bolt shaft can turn only in a clockwise direction when casting concrete, thereby preventing the bolt shaft from loosening from a connecting rod. The insert bolt of the present includes: a bolt shaft, a spring coupled to an outer side of the bolt shaft to perform an elastic function, a sliding movement member coupled to the outer side of the bolt shaft and coupled to a lower part of the spring to perform a sliding movement, a supporting rib member positioned in a lower part of the sliding movement member and supporting the sliding movement member and a connecting rod connected to a lower part of the bolt shaft, wherein the bolt shaft includes a disc-shaped head part, and a central shaft in a form of a circular cylinder integrally formed in a center part of the disc-shaped head part, wherein the disc-shaped head part has one-way, a lower part of the central shaft has a screw thread, and the one-way teeth includes an inclined surface and a vertical surface, such that, when an external pressure is applied due to concrete casting, the concrete casting pressure is dispersed through the inclined surface and the concrete casting pressure is aggregated through the vertical surface such that a rotating force is created only in a direction in which the bolt shaft tightens onto the connecting rod.