Auto-Locking Shower Head Cover Assembly Without Screws
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Solution Overview
Problem
Conventional shower heads have a complex connection structure that increases production costs and assembly difficulties, leading to high defective rates.
Innovation Solution
A shower head with an auto-locking cover design featuring a body unit, rotation support seat, seal seat, and cover unit, where the cover unit is mounted to the rotation support seat through hooks and engaging steps, and secured with elastic pieces for a simple, screw-less assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a screw connection structure is used to connect the cover unit to the body unit, then the connection strength is improved, but the device complexity and assembly difficulty increase
Solution Approach 1:
The patent removes the screw component from the connection structure between the cover unit and body unit. Instead of using a screw-fastening mechanism, the design employs a direct engagement structure where the cover unit's engaging step interacts with the body unit's corresponding feature, eliminating the need for separate fastening elements and simplifying the overall assembly.
Solution Approach 2:
The patent integrates the connection function directly into the cover unit and body unit structures themselves. The engaging step on the cover unit and the corresponding engagement feature on the body unit are designed to work together as an integrated system, combining the functions of connection and attachment without requiring separate fastening components like screws.
2Reliability
If a screw connection structure is used, then the connection reliability is improved, but the assembly efficiency and production cost worsen
Solution Approach 1:
The patent eliminates the screw component from the assembly process, removing the steps required for screw insertion, tightening, and securing. The cover unit is designed with an engaging step that directly connects to the body unit through a simple engagement mechanism, significantly reducing assembly operations and improving production efficiency while maintaining connection reliability.
Solution Approach 2:
The connection structure is designed to be self-aligning and self-securing. The engaging step on the cover unit automatically engages with the corresponding feature on the body unit during assembly, and the elastic piece provides automatic retention without requiring external fastening operations or additional securing steps.
3Stability of the object's composition
If a screw connection structure is used, then the connection stability is improved, but the manufacturing complexity and defective rate worsen
Solution Approach 1:
The patent removes the screw component from the connection system, eliminating the manufacturing complexity associated with screw production, threading, and quality control. The simplified engagement step structure reduces the number of parts to manufacture and assemble, thereby decreasing the defective rate while maintaining stable connection through the elastic piece's retention mechanism.
Solution Approach 2:
The patent changes the connection mechanism from a mechanical fastening system (screws) to an elastic retention system. The elastic piece provides stable connection through its elastic deformation and retention force, changing the fundamental parameter of how the connection is achieved from rigid fastening to elastic holding, which simplifies manufacturing.
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
This design simplifies the connection structure, reduces production costs, and enhances assembly efficiency by eliminating the need for screws, resulting in a lower defective rate and cost-effective manufacturing.
Implementation Method 1
The rotation support seat is further formed with an elastic piece. The cover unit is formed with an engaging recess corresponding to the elastic piece. By turning the rotation support seat, the elastic piece is engaged in the engaging recess so that the cover unit is connected to the underside of the rotation support seat in an auto-locking way.
Data Source
AI summary
A shower head with an auto-locking cover includes a body unit, a rotation support seat, a seal seat and a cover unit. The seal seat is fixedly connected to an underside of the body unit. The rotation support seat is secured through the body unit and the seal seat. The rotation support seat is formed with an insertion hole and an engaging step. The cover unit is formed with a hook corresponding to the insertion hole and the engaging step. The cover unit is mounted to an underside of the rotation support seat. The rotation support seat is further formed with an elastic piece. The cover unit is formed with an engaging recess corresponding to the elastic piece. By turning the rotation support seat, the elastic piece is engaged in the engaging recess so that the cover unit is connected to the underside of the rotation support seat.