Elastically Mounted Pressure Gauge for Hand Air Pump Shock Protection
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Solution Overview
Problem
Existing hand air pump handle assemblies with integrated pressure gauges are prone to damage from physical shock, making it more economical to replace the entire pump rather than repairing the gauge.
Innovation Solution
A hand air pump handle assembly with an elastically supported pressure gauge and a flexible connecting tube, featuring a shock absorber and elastic connector to absorb impact and allow movement within the handle shell, along with a secure tube joint and seal washer to prevent gas leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pressure gauge is rigidly mounted onto the pump handle, then the pressure gauge provides accurate real-time pressure reading, but the pressure gauge becomes susceptible to damage from physical shock
Solution Approach 1:
The patent applies beforehand cushioning by introducing a shock absorber component between the pressure gauge and the pump handle. This shock absorber is designed to cushion and absorb physical shocks before they reach the pressure gauge, preventing damage while maintaining the gauge's ability to provide accurate readings. The cushioning element is pre-installed in the mounting structure to protect the gauge during normal use and accidental drops.
Solution Approach 2:
The patent employs an intermediary approach by introducing a flexible connecting tube and elastic mounting structure between the pressure gauge and the rigid pump handle. This intermediary layer acts as a buffer that transmits pressure information while isolating the gauge from direct mechanical shock. The flexible tube allows pressure transmission while the elastic mounting provides mechanical isolation.
2Reliability
If the pressure gauge is protected from shock, then the gauge durability is improved, but the structural complexity of the handle assembly increases
Solution Approach 1:
The patent merges the shock absorption function with the existing pressure gauge mounting structure. Rather than adding a completely separate protection system, the shock absorber is integrated into the mounting bracket or housing that already supports the pressure gauge. This combining approach provides protection while minimizing additional structural complexity.
Solution Approach 2:
The patent utilizes flexible materials such as rubber or elastomeric elements as shock-absorbing components. These flexible elements are simple in structure but effective in absorbing shocks. The flexible connecting tube and elastic mounting components use material properties rather than complex mechanical structures to achieve shock protection, thereby limiting the increase in structural complexity.
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
Enhances the durability of the pressure gauge by reducing the risk of damage from impact, allowing for easier maintenance and extended pump lifespan by protecting the gauge from physical shocks.
Implementation Method 1
A flexible shock absorber is provided being arranged between the pressure gauge and the handle shell for dampening impact between the handle shell and the pressure gauge
Implementation Method 2
an elastic connector connecting the pressure gauge to the handle shell to permit movement of the pressure gauge within the accommodating space
Implementation Method 3
A flexible connecting tube is in the accommodating space of the handle shell and comprises a first end and a second end and a tube joint connecting the flexible connecting tube to the air vent
Data Source
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AI summary
Embodiments of the present invention include a hand air pump handle assembly and a hand air pump, including a pressure gauge elastically attached thereto. The hand air pump handle assembly comprises a handle shell that defines an accommodating space for placement of the pressure gauge. The accommodating space is provided with an air vent for connecting the accommodating space to an inflatable body, such as an inflatable mattress. The pressure gauge measures an internal air pressure for the inflatable body via the air vent and is connected to the handle shell with an elastic connector. The elastic connector can elastically deform to prevent the pressure gauge from being damaged or broken under external forces such as an impact.