Corrugated Pipe Joint Device With Rotating Connector
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Solution Overview
Problem
Existing joint devices for corrugated pipes require skilled experience for coupling and restrict the rotation of connectors, making it difficult to maintain airtightness and replace components.
Innovation Solution
A joint device with a guide groove on the socket pipe, a movable bolt, and expandable packing to ensure airtightness and allow independent rotation of the connector, featuring a metal woven layer, inner and outer packings, and an expanding mechanism for easy assembly and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the connector is joined to the nut by coupling force, then airtightness is maintained, but the connector cannot be rotated independently and replacement is difficult
Solution Approach 1:
The joint device is divided into separate functional components: the nut remains fixed to maintain airtightness, while the connector is separated and can be independently rotated and replaced. The guide groove and movable bolt mechanism enable this segmentation by allowing the connector to be detached from the nut while maintaining the seal.
Solution Approach 2:
The connector is designed to be dynamically separable from the nut through the guide groove and movable bolt mechanism. This allows the connector to be rotated and replaced independently while the nut remains stationary, resolving the contradiction between maintaining airtightness and enabling easy replacement.
2Device complexity
If the nut and connector are restricted from rotation, then the joint structure is simple, but the connector cannot be easily replaced
Solution Approach 1:
The joint device separates the rotation function from the airtightness function. The nut remains fixed and simple in structure to maintain the seal, while the connector is equipped with the guide groove and movable bolt mechanism to enable independent rotation and replacement, thus maintaining simplicity while improving repairability.
Solution Approach 2:
The guide groove and movable bolt act as intermediary mechanisms that enable the connector to be rotated and replaced independently without affecting the nut or the airtightness seal. This intermediary mechanism adds minimal complexity while significantly improving ease of repair.
3Reliability
If skilled experience is required for coupling, then the joint can be secure, but the operation becomes difficult and time-consuming
Solution Approach 1:
The guide groove and movable bolt mechanism provide self-guidance during the coupling operation. The guide groove automatically aligns and guides the connector into the correct position, while the movable bolt secures the connection, eliminating the need for skilled experience or complex manual alignment procedures.
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 secure airtight seal and allows easy rotation and replacement of connectors, enhancing usability and maintenance by using a guide groove and expandable parts to ensure airtightness and facilitate independent rotation.
Implementation Method 1
an expanded part for expanding the inner packing outwardly in a state where the socket pipe is fit to the non-corrugated part
Data Source
AI summary
A joint device for a corrugated pipe. A socket pipe in which a packing is forcedly inserted is joined to a non-corrugated part of the corrugated pipe and the non-corrugated part is expanded at the position of the packing. The joint device has a guide groove formed on the outer circumference of the socket pipe, a connector fit to the socket pipe, and a movable bolt screw-coupled to the outer face of the socket pipe and forcedly joined to the guide groove, so as to freely rotate the connector independently from the corrugated pipe.