Soap Pump Guide Mechanism for Single-Handed Operation Without Wedging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional hand pumps require two-handed operation due to their length, making single-handed use impossible and prone to mechanical wedging or damage.
Innovation Solution
A hand pump design featuring a guide mechanism within the pump housing to facilitate straight-lined movement of the outlet, preventing tilting and allowing single-handed operation by coupling the outlet and pump housing with bearings for reduced friction and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the outlet is made long to reach above the sink, then the pump can be fixed firmly to the working surface and extend above the sink, but two-handed operation is required and single-handed operation becomes impossible
Solution Approach 1:
The outlet is made movable relative to the pump housing through a guide mechanism, allowing it to move vertically along the pump housing during operation. This dynamic configuration enables the outlet to maintain sufficient length for reaching above the sink while allowing single-handed operation by moving the outlet rather than pressing a separate button.
2Ease of operation
If the outlet is pressed upon to operate the pump with one hand, then single-handed operation becomes possible, but the mechanism wedges and parts may be damaged
Solution Approach 1:
A guide mechanism acts as an intermediary between the outlet and the pump mechanism, providing guided movement along the pump housing. This intermediary structure prevents direct pressing on the outlet that would cause wedging, while still enabling single-handed operation through controlled vertical movement of the outlet.
3Length of moving object
If the outlet is made long to bridge the distance, then the pump can reach above the sink, but the outlet may be bent or broken during operation
Solution Approach 1:
The outlet is designed as a movable component that travels vertically along the pump housing during operation. This dynamic configuration reduces the outlet length required to reach above the sink, thereby decreasing the risk of bending or breaking while maintaining the ability to dispense soap above the sink level.
4Ease of operation
If a guide mechanism with bearings is added, then friction is reduced and operation is facilitated, but device complexity increases
Solution Approach 1:
The guide mechanism replaces complex button-pressing operations with a simpler vertical sliding movement. By using bearings within the guide, friction is reduced and the operation is smoothed out, making single-handed use comfortable and reliable. The added mechanical complexity is justified by the significant improvement in ease of operation.
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
Enables effective single-handed operation and reduces the risk of mechanical damage by allowing the outlet to be pushed and soap collected without wedging, while maintaining a robust and hygienic design.
Implementation Method 1
one or more bearings. As a result, friction between moving parts is avoided or at least reduced, and thus the operation is facilitated and the risk of damage is reduced
Data Source
AI summary
A hand pump for fixing to a working surface comprises a pump housing and an outlet that extends substantially laterally with respect to the pump housing in order to extend above a receptacle. The pump is operable by substantially straight-lined operational movement of the outlet along the pump housing. The outlet and the pump housing are coupled by a guide, in particular comprising a guide in the pump housing that inhibits tilting of the outlet with respect to the pump housing.