Rotary Vent Valve Structure for Paint Supply Cup Splash Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing paint spray cup designs suffer from paint splashing during ventilation due to uncontrolled pressure equalization, leading to environmental pollution.
Innovation Solution
A ventilation fluid supply cup with a valve system featuring a rotating closing element and vent openings on the side wall of a hollow column, controlled by a limiting mechanism, which balances internal and external pressures without direct upward gas spray, minimizing paint splashing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stress or pressure
If the vent holes are opened by rotating the gas-discharge assembly to balance air pressure, then the pressure balance is achieved, but paint splashes out from the overlapping holes polluting the environment
Solution Approach 1:
The vent hole is divided into two separate components: a fixed vent hole in the container and a movable vent opening in the closing element. This segmentation allows independent control of the ventilation path, enabling pressure equalization without direct exposure of paint to the vent opening, thus preventing splashing while maintaining pressure balance.
Solution Approach 2:
The closing element acts as an intermediary component between the paint and the external environment. By positioning the vent opening in the closing element rather than directly in the container wall, it serves as a mediator that allows air pressure equalization while blocking the direct path for paint splashing, thus resolving the contradiction between pressure balance and pollution prevention.
2Stress or pressure
If a block part is used to open the vent holes to balance pressure, then the pressure balance is achieved, but paint splashes out from overlapping holes
Solution Approach 1:
Instead of opening the vent hole from the inside of the container by moving a block part that directly exposes the vent hole to the outside (which causes paint splashing), the invention inverts the approach by placing the vent opening in the closing element itself. This allows the vent opening to be opened or closed without exposing paint to the external environment, thus achieving pressure balance without splashing.
3Adaptability or versatility
If multiple vent holes are arranged at the base with through holes at the gas-discharge assembly, then ventilation is achieved, but paint splashes during the opening process
Solution Approach 1:
The closing element is designed to rotate dynamically between different positions, controlling the vent opening's alignment with the fixed vent hole. This dynamic control allows the system to switch between ventilation mode (when alignment is needed) and sealed mode (when paint splashing must be prevented), providing adaptability while minimizing harmful effects.
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 solution effectively reduces paint splashing during ventilation by ensuring controlled pressure equalization through the valve system, maintaining a sealed state during opening and closing, thus minimizing paint loss and environmental contamination.
Implementation Method 1
the vent opening and the vent position are in a connected state to make pressure between an inside of the container and an external environment balanced
Data Source
AI summary
A ventilation fluid supply cup has a container arranged with a vent hole, the vent hole is closed by a valve, the valve includes a valve housing arranged at a corresponding position of the container, the valve housing is arranged with a closing element, the valve housing includes at least one hollow column protruding around a periphery of the vent hole, the hollow column is arranged with at least one vent opening, the closing element is arranged with a vent position matched with the vent opening, the closing element is capable of rotating along a circumferential direction of the valve housing; the vent opening and the vent position are connected to make pressure between an inside of the container and an external environment balanced; the vent opening and the vent position are in a disconnected state to close the vent opening by a side wall of the closing element.