Overhead Shower Head Tool-Free Assembly via Abutting Fitting
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Solution Overview
Problem
Traditional overhead shower heads require tools like a wrench for assembly and disassembly due to uneven friction between the universal ball and the shower head main body, making the process inconvenient.
Innovation Solution
An overhead shower head design featuring an abutting fitting portion between the universal ball and the ball fixing seat, allowing them to rotate together, along with a ratchet mechanism that deforms to indicate assembly completion, enabling tool-free assembly and disassembly by rotating the shower head main body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the universal ball and shower head main body are connected with friction-based threading, then the connection is secure, but the assembly and disassembly require tools like a wrench
Solution Approach 1:
The shower head main body performs the tightening function itself by rotating to drive the universal ball through the abutting fitting portion, eliminating the need for external tools like wrenches. The system serves itself during assembly and disassembly operations.
Solution Approach 2:
The abutting fitting portion acts as an intermediary mechanism between the shower head main body and the universal ball. It includes a stop block that engages with a limit slot to transmit rotational motion and apply controlled force, enabling tool-free operation while maintaining secure connection.
2Reliability
If the tightening force is increased to ensure secure locking, then the connection becomes more reliable, but the friction prevents the universal ball from rotating with the shower head main body
Solution Approach 1:
The system dynamically transitions between two states: during assembly, the stop block engages the limit slot to transmit rotation; during operation, the high friction prevents rotation while maintaining secure locking. The mechanism adapts its behavior based on the operational phase.
Solution Approach 2:
The connection mechanism is segmented into distinct functional elements: the abutting fitting portion for motion transmission during assembly, and the friction interface for secure locking during operation. This segmentation allows each element to optimize its specific function without compromising the other.
3Reliability
If a traditional threaded connection is used, then the assembly is secure, but both assembly and disassembly require external tools making the process time-consuming
Solution Approach 1:
The shower head main body serves as its own assembly tool by rotating to drive the universal ball through the abutting fitting portion. This eliminates the need for external wrenches or tools, significantly reducing assembly time while maintaining secure connection.
Solution Approach 2:
The traditional wrench-based mechanical system is replaced with a self-actuating rotational mechanism. The shower head main body's rotation directly drives the universal ball through the abutting fitting portion, substituting the need for external mechanical tools with an integrated self-service system.
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
Facilitates quick and convenient assembly and disassembly without the need for tools, ensuring a secure connection between the shower head and support arm with audible confirmation of assembly completion.
Implementation Method 1
the ratchets of the ball fixing seat and the external periphery of the ratchet wheel squeeze, so that the ratchets of the external periphery of the ratchet wheel deform inwardly and then leave away from the ratchets of the internal periphery of the ball fixing seat
Data Source
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AI summary
The present invention provides an overhead shower head, which needn't a wrench when assembled and disassembled, the overhead shower head comprises a shower head main body (1) and a universal ball (2) disposed in a ball fixing seat (11) at the rear side of the shower head main body (1); wherein an abutting fitting portion is disposed between the universal ball (2) and the ball fixing seat (11), when the universal ball (2) and the ball fixing seat (11) rotate relatively, the abutting fitting portion abuts in the rotating direction, so that the universal ball (2) and the ball fixing seat (11) rotate together. The assembly and disassembly of the overhead shower head of the present invention can be achieved by just rotating the shower head main body (1) without using tools such as a wrench, the assembly is fast and convenient.