Inflatable Body Pressure Switch With Automatic Pump Feedback
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Solution Overview
Problem
Inflatable bodies require frequent manual inflation to maintain pressure, which is labor inefficient due to the lack of monitoring devices to track pressure variations, leading to potential discomfort and safety issues.
Innovation Solution
A pressure switch that automatically activates or deactivates a pump to maintain pressure within a predetermined range, featuring a load adjusting assembly and a sliding block driven by a servo motor via a worm shaft and gear, allowing for inflation or deflation of inflatable bodies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual inflation is used to maintain pressure in inflatable bodies, then the pressure can be maintained, but labor efficiency is poor and requires constant user intervention
Solution Approach 1:
The pressure switch enables the inflatable body system to automatically monitor and maintain its own pressure without external intervention. The device detects pressure variations and automatically activates the pump when pressure drops below the preset threshold, allowing the system to self-regulate and eliminating the need for manual checking and inflation.
Solution Approach 2:
The pressure switch incorporates a feedback mechanism where the resilient element continuously monitors the internal pressure of the inflatable body. When pressure drops, this information is transmitted to the control system which then activates the pump. The system continuously adjusts based on real-time pressure feedback, maintaining pressure within the desired range automatically.
2Extent of automation
If a pressure monitoring system is added to inflatable bodies, then automatic pressure control is achieved, but device complexity increases
Solution Approach 1:
The pressure switch utilizes pneumatic principles where the resilient element is directly exposed to the internal pressure of the inflatable body through a communication hole. The pressure differential physically moves the resilient element, which then actuates the switch mechanism. This pneumatic sensing approach eliminates the need for complex electronic pressure sensors and signal processing circuits.
Solution Approach 2:
The resilient element serves as a mechanical intermediary between the internal pressure of the inflatable body and the electrical switch mechanism. Instead of directly measuring pressure with complex sensors, the resilient element converts pressure differential into mechanical displacement that directly opens or closes the electrical circuit, simplifying the overall system architecture.
3Adaptability or versatility
If pressure sensitivity is fixed in the pressure switch, then the design is simpler, but adaptability to different applications is reduced
Solution Approach 1:
The pressure switch incorporates an adjustable load assembly that allows the pressure threshold to be dynamically changed according to different application requirements. The adjustable component can be positioned at different locations along the resilient element or the pre-load on the spring can be modified, enabling the same device to adapt to various pressure ranges and inflatable body types without requiring multiple specialized devices.
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 pressure switch efficiently maintains optimal pressure in inflatable bodies, reducing manual labor and ensuring comfort and safety by automatically regulating pressure through a connected pump system.
Implementation Method 1
a resilient element substantially U shaped and having two ends respectively supported by the bottom casing and the mediate casing so as to be exposed to pressure variations inside the inflatable body
Implementation Method 2
The sliding block is driven by a server motor inside the casing of the pressure switch of the present invention via a worm shaft directly connected to a gear which is integrally formed with the sliding block
Data Source
AI summary
A inflatable product for an inflatable body includes a casing with an airway adapted to communicate with an interior of the inflatable body, and a resilient element movably positioned inside the casing to define with the easing a space therebetween. An on/off switch is adapted to connect to an air pump. A driving element is movably positioned inside the casing to be in response to the movement of the resilient element so as to selectively activate the on/off switch to activate the air pump. A recoil element is positioned around the driving element and has a distal end which is abutted against the resilient element. The spring is compressed/decompressed when the resilient element moves in response to pressure inside the inflatable body so that activation/deactivation of the on/off switch is controlled via the movement of the resilient element as well as the compression of the spring.