Trigger Dispensing Head Labyrinth Vent Seal Against Product Leakage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Trigger dispensing devices face issues with product leakage through the venting duct during transport and storage, especially when subjected to impacts, leading to component breakage and malfunctions.
Innovation Solution
The dispensing head incorporates a labyrinth seal and a fixed sleeve position within the cylinder chamber, along with a bi-injected sealing ring and bottom lip, to create a tortuous path for air entry while preventing liquid leakage, enhancing the seal against product leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the venting duct is opened to allow air entry during suction, then the suction function is improved, but product leakage occurs during transport and storage
Solution Approach 1:
The patent applies preliminary action by pre-positioning a sealing element (such as a valve or closure mechanism) in the venting duct that automatically seals the opening before transport and storage. This sealing action is prepared in advance to prevent leakage, while allowing the venting duct to remain functional during the dispensing operation. The sealing element is designed to engage automatically or be easily activated to close the venting path, thus preventing product escape through the otherwise open duct.
2Adaptability or versatility
If the device is packaged in a larger box for online commerce, then shipping flexibility is improved, but the device is subjected to impacts and crushing
Solution Approach 1:
The patent applies beforehand cushioning by incorporating protective structural elements within the device housing or packaging design that absorb and distribute impact forces. This may include cushioning materials, shock-absorbing features, or reinforced structural components positioned to protect vulnerable parts of the dispensing device during transport. The cushioning is built into the design to mitigate the effects of impacts and crushing that occur during shipping in larger, less protective boxes.
3Stability of the object's composition
If the trigger or shell is broken during transport, then device assembly is compromised, but no protective measures are in place
Solution Approach 1:
The patent applies preliminary anti-action by designing the device with preventive structural reinforcements and protective features that counteract the forces causing breakage during transport. This includes strengthening the shell and trigger components, adding protective coatings, or designing interlocking mechanisms that prevent disassembly. The design proactively addresses potential breakage points with built-in protective measures to maintain assembly integrity and component functionality despite transport conditions.
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 and prevents product leakage by creating a high seal, even under adverse conditions such as horizontal or overturned positions during transport or storage, ensuring the device's functionality and reducing the risk of component malfunctions.
Implementation Method 1
The dispensing head incorporates a labyrinth seal and a fixed sleeve position within the cylinder chamber, along with a bi-injected sealing ring and bottom lip, to create a tortuous path for air entry while preventing liquid leakage
Data Source
AI summary
A trigger dispensing head applicable to a bottle of a trigger dispensing device is provided. The trigger dispensing head has a cylinder chamber, a main vent passage, a sleeve, a secondary vent passage, a piston, a suction duct, a dispensing duct and a labyrinth seal suitable for placing the main vent passage in fluidic connection with the external environment. The labyrinth seal is formed on either an external surface of the sleeve or an internal surface of the cylinder chamber.