Replaceable Faucet Handle with Adapter Units for Universal Valve Compatibility

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Solution Overview

Problem

Conventional replaceable faucet handles are inconvenient for self-installation due to differing valve stem designs and tend to loosen the faucet shell during replacement, limiting their compatibility across different faucet types.

Innovation Solution

A replaceable faucet handle design featuring adapter units and a nut that allows compatibility with two main types of faucets, with adapter units having specific cutting edges and driving blocks to secure the handle body to the valve stem, and a nut that prevents shell loosening during disengagement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional replaceable faucet handles use different valve stem designs for different faucet series, then each faucet series can have its own specialized handle, but the same handle cannot be used for different faucet types and installation becomes inconvenient for customers

Engineering Contradiction:
Improvehandle compatibilityVSAvoidself-installation convenience
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent creates a universal handle assembly that can interface with multiple valve stem types (single cutting edge and triple cutting edge configurations) through a standardized adapter mechanism. The adapter unit acts as an intermediary that accommodates different valve stem geometries while maintaining a consistent handle interface, enabling one handle design to serve multiple faucet series and types.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The adapter unit serves as a mediator between the standardized handle and the varying valve stem designs. This intermediary component translates between different valve stem configurations (single vs. triple cutting edges) and the unified handle interface, allowing customers to install the same handle on different faucet types without requiring specialized knowledge or tools.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of repair

If the handle is disengaged from the valve base for replacement, then the handle can be replaced, but the shell becomes loosened and requires additional fastening steps

Engineering Contradiction:
Improvehandle replacementVSAvoidshell stability
Core Design Contradiction:
Ease of repairVSStability of the object's composition

Solution Approach 1:

The patent incorporates a retaining nut that is pre-positioned and threaded onto the valve base before handle removal. This preliminary action ensures that when the handle is disengaged for replacement, the retaining nut remains in place to prevent the shell from loosening or detaching, eliminating the need for additional fastening steps during reassembly.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The retaining nut provides preliminary anti-action by counteracting the loosening force that occurs when the handle is removed. By maintaining continuous contact and compression on the shell throughout the replacement process, the nut prevents the shell from becoming loose or detached, stabilizing the faucet body structure during handle replacement operations.

Inventive Principle:
Principle #9Preliminary anti-action

Data Source

PatentUS9388915B1Replaceable faucet handle
Publication Date: 2016.07.12 ALEXANDER YEH IND
  • US9388915B1 patent drawing
  • US9388915B1 patent drawing
  • US9388915B1 patent drawing

AI summary

A replaceable faucet handle may include a handle, a handle body, a first adapter unit, a second adapter unit and a nut. A base is located on one side of the handle, and a recessed portion is formed on the bottom thereof with a screw hole. The handle body comprises a space formed therein, and a block configured to connect to the recessed portion is formed on the top thereof. The first adapter unit has two first driving blocks, a first through hole formed on a central portion thereof for penetration, and a first cutting edge formed on one side of the first through hole. The second adapter unit has two second driving blocks, a second through hole formed on a central portion thereof for penetration, and three connected second cutting edges formed on one side of the second through hole.