Air Pump Head Sealing with Resilient Swingable Retaining Arm
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Solution Overview
Problem
The existing pump heads of air pumps have complex constructions with deformable retaining arms that fail to create an airtight seal effectively, leading to inefficient engagement with objects and excessive components.
Innovation Solution
A pump head design featuring a simple construction with a seat actuated by a handle, a resiliently swingable retaining arm, and an air seal ring with a curved outer periphery, which compresses to facilitate airtight engagement and precise control of components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If deformable retaining arms are used in the pump head, then the structure can accommodate movement, but the retaining arms fail to create an airtight seal effectively and the construction becomes complex
Solution Approach 1:
The patent employs a flexible diaphragm instead of deformable retaining arms. The diaphragm is a thin, flexible membrane that can deform to accommodate movement while maintaining sealing integrity. This single flexible component replaces the complex assembly of multiple deformable retaining arms, achieving both adaptability and simplicity.
2Strength
If multiple components are used in the pump head, then the structure can be robust, but the construction and assembly become complex and time-consuming
Solution Approach 1:
The patent merges multiple components into integrated assemblies. The diaphragm assembly combines the sealing function and movement accommodation in a single integrated component. The valve assembly integrates the valve body, seat, and spring into one unit. This merging maintains structural robustness while significantly reducing the total number of components and simplifying assembly.
3Duration of action of moving object
If deformable retaining arms are used, then the structure can move, but they separate from one another and fail to depress the valve effectively
Solution Approach 1:
The patent introduces a cam mechanism as an intermediary between the moving diaphragm and the valve. The cam converts the diaphragm's movement into effective valve depression, ensuring reliable valve actuation. The cam acts as a mediator that translates the diaphragm's motion into the precise mechanical action needed to depress the valve, eliminating the reliability issues of direct retaining arm-to-valve contact.
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 achieves a simple and cost-effective construction with precise component control, ensuring effective airtight sealing and efficient operation by using a resiliently swingable retaining arm and air seal ring, reducing manufacturing and assembly time and costs.
Implementation Method 1
at least one retaining arm extending between two sides of the at least one slot and resiliently swingable
Implementation Method 2
An air seal ring is received by the compartment and is selectively compressed by the seat
Data Source
AI summary
A pump head of an air pump includes a head including an outer body, a handle, and an end cap. The outer body includes a compartment extending therein. The handle is connected to a first end of the outer body. The end cap is connected to a second end of the outer body. A retaining device is received by the compartment and includes a seat actuated by the handle. An air seal ring is received by the compartment and is selectively compressed by the seat. The seat includes a cavity extending therein, at least one slot extending radially from the cavity and through the seat, and at least one retaining arm extending between two sides of the at least one slot and resiliently swingable. The air seal ring has an outer periphery section curved radially inwardly with respect to other periphery sections along a longitudinal length thereof.