Pipe Joint Sleeve Structure for Radial Disconnection
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Solution Overview
Problem
In piping facilities, disconnecting a pipe connected by a joint structure without moving it in the longitudinal direction is challenging, especially when the pipe is not machined, as existing solutions require significant time and effort.
Innovation Solution
A joint structure comprising a hollow joint body, a first sleeve with a cylindrical portion and a locking portion, a second sleeve with a contact portion, and a nut that covers the joint body, allowing the pipe to be disconnected by sliding the joint body and first sleeve in the radial direction without moving the pipe longitudinally.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pipe is disconnected by moving it in the longitudinal direction, then the pipe can be removed from the joint structure, but it becomes difficult to move the pipe when multiple parts are combined in piping facilities
Solution Approach 1:
The patent changes the disconnection direction from the longitudinal axis to the radial direction. The locking portion and contact portion are designed to engage and disengage by moving radially outward, perpendicular to the pipe's longitudinal axis. This dimensional change allows easy disconnection without requiring longitudinal movement of the pipe, solving the problem of difficulty in moving pipes in combined piping facilities.
2Ease of operation
If the pipe end is machined by flaring to enable disconnection, then the pipe can be disconnected by sliding, but it incurs time and effort for machining
Solution Approach 1:
The locking portion and contact portion are pre-formed on the pipe and joint structure during manufacturing, eliminating the need for field machining. The locking portion protrudes from the joint structure, and the contact portion is formed on the pipe end, allowing direct engagement and disengagement without flaring or other machining operations, thus saving time and effort.
3Loss of time
If the pipe is not machined, then time and effort are saved, but existing joint structures cannot disconnect the pipe without longitudinal movement
Solution Approach 1:
The joint structure is segmented into distinct functional components: the locking portion on the joint structure, the contact portion on the pipe, and the nut for securing. This segmentation allows each component to perform its specific function independently, enabling the locking and contact portions to engage radially without requiring pipe machining or longitudinal movement for disconnection.
4Ease of operation
If a locking mechanism is added to enable radial disconnection, then pipe disconnection becomes easier without machining, but the device complexity increases
Solution Approach 1:
The locking function is extracted as a separate locking portion protruding from the joint structure, and the contact function is extracted as a contact portion on the pipe. This extraction allows the locking and contact mechanisms to be simple, geometric features rather than complex assemblies, enabling radial disconnection without significant increase in overall device complexity.
Data Source
AI summary
Provided is a joint structure with which a pipe can be disconnected without moving the pipe in a longitudinal direction thereof, even if the pipe is not machined. A first sleeve has an inner cavity into which a pipe is inserted, and one end part of the first sleeve comes into contact with a joint body. A second sleeve has a hole into which the pipe is inserted, and one end part of the second sleeve comes into contact with the other end part of the first sleeve. A nut covers one end part of the joint body, the first sleeve, and the second sleeve, and the nut is threaded onto the joint body in a state of pressing against the surface of the second sleeve on the side opposite from the first sleeve.