Double-Buckle Bathroom Tube Assembly With Split Connectors
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Solution Overview
Problem
Existing double-buckle tubes for bathrooms with a tube-in-tube structure are complex, costly, and difficult to assemble, leading to low production efficiency.
Innovation Solution
A simplified double-buckle tube design where the connectors are divided into a tube core and a connecting piece, with a pressing envelope and locating ring for quick assembly, allowing the outer tube and flexible inner tube to be separately assembled and fixed using a riveting process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the connectors are divided into a tube core and a connecting piece for separate assembly, then the assembly process becomes simpler and more efficient, but the device structure becomes more complex
Solution Approach 1:
The connector is divided into two separate components: a tube core and a connecting piece. The tube core is inserted into the flexible inner tube while the connecting piece is attached to the outer tube. This segmentation allows independent assembly of each component, simplifying the overall assembly process and improving production efficiency despite the increased number of parts.
2Productivity
If the outer tube and flexible inner tube are assembled separately with connectors, then the manufacturing cost decreases and production efficiency increases, but the sealing reliability may be compromised
Solution Approach 1:
A pressing envelope is introduced as an intermediary component between the outer tube and the connecting piece. The pressing envelope applies radial pressure to secure the tube core and connecting piece together, ensuring reliable sealing while allowing separate assembly of the outer tube and flexible inner tube. This mediator component maintains sealing integrity without requiring complex integrated connector designs.
Solution Approach 2:
The connecting piece undergoes a shape change during assembly where it is pressed radially inward by the pressing envelope. This parameter change transforms the connecting piece from a loose fit to a tightly secured position, ensuring reliable sealing between the outer tube and the tube core while maintaining simple separate assembly procedures.
3Ease of operation
If a pressing envelope is used to apply pressing effect and fix the outer tube, then the fixation becomes more reliable and assembly quicker, but the device structure becomes more complex
Solution Approach 1:
The pressing envelope is designed to automatically secure the outer tube and connecting piece through its own elastic deformation. When the connecting piece is inserted, the pressing envelope self-expands to apply radial pressure, automatically fixing the components without requiring additional fastening operations or complex assembly mechanisms.
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 design simplifies assembly, reduces production costs, and enhances fixation, resulting in increased efficiency and a more straightforward manufacturing process while maintaining flexibility and sealing integrity.
Implementation Method 1
the flexible inner tube has elasticity and is expanded and hermetically connected with the inner tube connecting parts by the elasticity
Implementation Method 2
the seal rubber rings are in interference seal connection with the inner wall of an external water inlet/outlet
Data Source
AI summary
The utility model discloses a double-buckle tube for a bathroom, comprising an outer tube and a flexible inner tube; both ends of the flexible inner tube are respectively provided with connectors; inner ends of the connectors are provided with inner tube connecting parts; the flexible inner tube has elasticity and is expanded and hermetically connected with the inner tube connecting parts by the elasticity; outer ends of the connectors are provided with at least one annular groove; seal rubber rings are arranged in the annular groove; each of the connectors is formed by a tube core and a connecting piece sleeved in the middle of the tube core and fixedly connected with the tube core; and the inner tube connecting parts and the annular groove are respectively arranged on the inner end and the outer end of the tube core.