Conical Rod Connector Structure to Prevent Axial Dislocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing mechanical connections for steel bars and steel strands, such as the sawtooth-shaped pipe pile quick connector, face issues with axial dislocation and difficulty in assembly due to lack of axial direction restrictions, leading to ineffective occlusion.
Innovation Solution
A quick connection device featuring an upper and lower sleeve with an inserting rod and extrusion gaskets forming a conical cylinder, utilizing a conical spring and spiral grooves to prevent axial movement and ensure firm connection, combined with threaded connections and spot welding for stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If occlusal flaps are used in the connector, then the connection structure is more complex, but the assembly difficulty increases and axial dislocation occurs
Solution Approach 1:
The connector is divided into upper and lower embedded parts with distinct functions. The upper part contains the bushing with occlusal flaps for one-way engagement, while the lower part contains the insert with embedded teeth for tooth-groove matching. This segmentation allows each part to be optimized independently, simplifying the overall assembly process while maintaining connection effectiveness.
Solution Approach 2:
The bushing acts as an intermediary component between the upper and lower embedded parts. It provides a conical surface for guiding the insert and houses the occlusal flaps that engage with the embedded teeth. This intermediary structure mediates the connection process, enabling easy assembly through automatic engagement while preventing axial dislocation through the conical guiding surface.
2Device complexity
If occlusal flaps are used without axial direction restrictions, then the connection structure is simpler, but axial dislocation occurs affecting occlusion effect
Solution Approach 1:
The occlusal flaps are designed with asymmetric geometry, having different profiles on their opposing surfaces. This asymmetry ensures that the flaps can be engaged in one direction (during assembly) but prevent movement in the opposite direction (axial dislocation). The asymmetric shape provides inherent directional control without requiring additional complex restriction mechanisms.
Solution Approach 2:
The bushing incorporates a conical surface (curved geometry) that guides the insert during assembly. This curved guiding surface naturally restricts axial movement by providing a tapered path that allows insertion but prevents withdrawal or dislocation. The curvature transforms linear axial motion into controlled angular engagement, ensuring reliable occlusion.
3Reliability
If multiple components are used in the connector, then the connection reliability is improved, but the device complexity increases
Solution Approach 1:
Multiple functional elements are merged into integrated components. The bushing combines the functions of a guiding surface, a housing for occlusal flaps, and a structural connector between the upper and lower parts. The insert integrates the embedded teeth with the anchoring structure. This merging reduces the total number of separate components while maintaining the reliability benefits of multiple functional elements.
Solution Approach 2:
Each component is designed to perform multiple functions simultaneously. The bushing provides structural support, guides the insert through its conical surface, houses the occlusal flaps for engagement, and prevents axial dislocation. The insert provides anchoring through embedded teeth, engages with the occlusal flaps, and is guided by the conical surface. This multi-functionality reduces component count while enhancing connection reliability.
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 device provides a simple, easy-to-install connection with enhanced stability, preventing axial displacement and ensuring secure assembly of steel bars in concrete prefabricated members.
Implementation Method 1
The conical spring used in the invention is used for connecting the plurality of extrusion gaskets, on the one hand, it avoids the dispersion of the plurality of extrusion gaskets during the assembly process, and on the other hand, it limits the axial relative movement among the plurality of extrusion gaskets
Implementation Method 2
the provided spiral groove is used for installing the conical spring, so that the conical spring is prevented from leaving the extrusion gaskets
Implementation Method 3
the inserting rod is conical, and the taper of the inserting rod is the same as that of the inner conical surface of the conical cylinder; and when the connection is completed, the head portion of the inserting rod passes through the conical cylinder, and the inner surfaces of the extrusion gaskets are fitted with the surface of the inserting rod
Data Source
AI summary
An inserting rod type quick connection device comprises an upper sleeve and a lower sleeve with an opening at one end. The upper sleeve is provided with an inserting rod extending out of the opening, the open end of the lower sleeve is provided with a detachable extrusion sleeve, and the extrusion sleeve is provided with a plurality of extrusion gaskets. The plurality of extrusion gaskets are fitted and connected to form a hollow conical cylinder structure, the outer conical surface of the conical cylinder has a spiral groove, and a conical spring is sleeved in the spiral groove, the outer diameter and the inner diameter of the conical cylinder gradually decrease from the lower end surface to the upper end surface, wherein the inserting rod is conical, and the taper of the inserting rod is the same as that of the inner conical surface of the conical cylinder.