Soap Dispenser Pump Housing for Pressure-Resistant Actuation
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Solution Overview
Problem
Existing soap dispenser faucet designs are prone to damage from excessive force due to high pressure creation when the actuating button is pressed quickly and forcefully, and they lack security against intentional destruction, as the movably mounted button can be removed with ease, especially with tools.
Innovation Solution
The soap dispenser faucet is designed with a divided housing and a reciprocating piston pump that divides the pump chamber into upper and lower chambers, using a rubber-elastic piston as a non-return valve and a helical compression spring to control the flow of liquid soap, ensuring the faucet can withstand significant forces without damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the actuating button is pressed down quickly with great force to dispense liquid soap, then the soap flows out quickly, but high pressure is created that can destroy sealing materials
Solution Approach 1:
The pump chamber is divided into an upper pump chamber and a lower pump chamber by the pump piston. This segmentation allows the system to process liquid soap in controlled stages, preventing excessive pressure buildup that would occur in a single-chamber design while maintaining efficient dispensing speed.
Solution Approach 2:
The pump piston is made of rubber-elastic material, making it dynamically adaptable to pressure changes. This elasticity allows the piston to flex under high force application, absorbing pressure spikes and protecting sealing materials from destruction while still enabling quick soap dispensing when the actuating surface is pressed.
2Ease of operation
If the movably mounted actuating button is designed for easy operation, then it is convenient to use, but it can be removed with greater effort and is not secure against willful destruction
Solution Approach 1:
The actuating surface is merged with the upper part of the housing, forming an integrated structure where the actuating surface is essentially the top surface of the upper part. This integration eliminates the separate movable button that could be removed, while the entire upper part can still be moved vertically for operation, maintaining ease of use while preventing tampering.
Solution Approach 2:
The upper part serves multiple functions: it forms the actuating surface for operation, houses the piston rod connection, provides structural support, and acts as a protective cover. This multi-functionality consolidates what would otherwise be separate components into a single secure unit that is both easy to operate and resistant to willful destruction.
3Device complexity
If the pump piston is made of rubber-elastic material to serve as a non-return valve, then the construction is simplified, but the piston material must withstand significant forces without damage
Solution Approach 1:
The pump piston utilizes the rubber-elastic properties of elastomeric material that combines flexibility for sealing function with sufficient strength to withstand operational forces. This material choice eliminates the need for separate non-return valve components while providing both the necessary elasticity for valve function and the structural integrity to resist damage from forceful actuation.
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 provides a robust and secure soap dispenser that prevents damage from willful force application, ensuring consistent and reliable operation by utilizing a rubber-elastic piston and a spring-loaded mechanism to manage pressure and flow effectively.
Implementation Method 1
the upper part is spring-loaded upwards relative to the lower part by a helical compression spring
Implementation Method 2
a helical compression spring, the lower end of which is supported on the pump housing
Implementation Method 3
the piston being made of rubber-elastic material so that the outside of the piston serves as a non-return valve
Data Source
AI summary
The fitting has an operating element i.e. operation knob, movable by a lifting piston pump to convey liquid soap from a reservoir to discharge the liquid soap. A housing is divided into a base part (1) fastenable at a washbasin, and a coaxial upper part (2) vertically movably mounted at the base part. A pump piston (10) and a piston rod (11) are arranged within a pump casing (6) that is immovably fixed in the base part. The pump piston is connected with the upper part over the piston rod, and an outlet (12) is fixed at the upper part. The upper part forms the operating element.