Refillable Sprayer With Detachable Can And Integrated Gas Valve
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Solution Overview
Problem
Conventional refillable sprayers require specific components for filling oil and gas, making the refilling process inconvenient and resulting in waste of remaining oil when the pressurized gas is depleted.
Innovation Solution
A refillable sprayer design featuring a hollow can with detachable top and bottom casings, a spray nozzle, a gas filling valve, and a release valve, eliminating the need for special components for refilling by allowing direct addition of oil and control of gas pressure to prevent over-pressurization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional refillable sprayer uses specific gas supplying tube and filling container, then oil and gas can be filled into the can, but the refilling process becomes inconvenient and requires special components
Solution Approach 1:
The patent removes the separate gas supplying tube and filling container components from the sprayer assembly. The gas filling valve is integrated directly into the can body, allowing gas to be filled through the existing opening without requiring specialized filling components. This extraction of unnecessary components simplifies the device while maintaining the refilling function.
Solution Approach 2:
The gas filling valve serves multiple functions: it acts as both a valve for controlling gas flow and a filling interface for adding gas to the can. The existing opening in the can body is used for both gas filling and potential oil filling, making the structure multi-functional and reducing the need for separate specialized components.
2Loss of substance
If conventional sprayer is not refillable, then structure is simple, but oil remaining in the sprayer is wasted when pressurized gas is depleted
Solution Approach 1:
The patent enables refillability by providing a gas filling valve that can be opened to add gas and a corresponding opening that allows oil to be added to the can. This preliminary preparation of the refilling mechanism allows users to refill both gas and oil as needed, preventing waste of remaining oil when gas is depleted.
Solution Approach 2:
The sprayer is designed to be self-refillable through the integrated gas filling valve and opening, allowing users to easily add gas and oil without requiring external specialized equipment. The system serves itself by providing direct access points for refilling, eliminating the need for complex external filling systems.
3Quantity of substance
If filling space volume corresponds to can volume, then fixed amount of oil is supplied, but the filling process becomes complex with specific components
Solution Approach 1:
The patent eliminates the separate filling container and connector components by providing a direct opening in the can body for oil filling. The user can directly pour oil into the can through this opening, simplifying the filling process while still allowing control over the amount of oil added to maintain the desired gas-to-oil ratio.
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 convenience of refilling by allowing oil to be fully added and maintaining a fixed gas-to-oil ratio without unnecessary components, preventing oil wastage and ensuring efficient use of the sprayer.
Implementation Method 1
the release valve (40) is mounted in and connected to the threaded hole (112) and comprises a screw head (41), two ends, an exhaust control outlet (43), a flange (42) and an O-ring (44). The screw head (41) is mounted on one of the ends of the release valve (40) and is screwed into the threaded hole (112). The exhaust control outlet (43) is mounted on the other end and is opposite to the threaded hole (112), automatically opens when a predetermined pressure is exceed to release excess gas.
Implementation Method 2
the gas supplying tube (74) is connected between the gas filling valve (711) and a gas pump, so pressurized air can be filled into the can (71) from the gas pump via the gas supplying tube (74) and the gas filling valve (711).
Data Source
AI summary
A refillable sprayer has a can, a spray nozzle, a gas filling valve and a release valve. The can is hollow and has a top casing and a bottom casing. The bottom casing is combined detachably with the top casing. The spray nozzle is mounted through the can. The gas filling valve is mounted on the can.