Rolling Ball Applicator Head With Elastic Slit Sealing
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Solution Overview
Problem
Conventional applicator heads for skincare products suffer from leakage, lack of dosing control, and are not suitable for integrating therapeutic features like vibration and phototherapy.
Innovation Solution
A container head with an elastic sealing structure that includes a slit-based opening, a rolling ball applicator, and optional stimulation elements such as vibration and phototherapy, ensuring leak-proof storage and controlled dispensing while providing massage and enhanced treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a ball-type applicator is mounted at the container outlet, then liquid can be spread across the user's skin, but liquid may escape around the ball's periphery during storage, transport, or pressure variations
Solution Approach 1:
The patent employs a flexible sleeve made of elastomeric material that forms a seal around the ball applicator. The sleeve's flexibility allows it to conform to the ball while maintaining sealing pressure, preventing liquid leakage during storage and transport while still permitting liquid flow during use.
Solution Approach 2:
The elastic sealing structure acts as an intermediary element between the ball applicator and the container outlet. This sealing member with a slit configuration provides a controlled interface that allows liquid passage during use while blocking leakage during storage, mediating between the conflicting requirements of dispensing and sealing.
2Ease of manufacture
If the ball is only seated by friction within its housing, then assembly is simple, but liquid may escape around its periphery and product control is poor
Solution Approach 1:
The flexible elastomeric sleeve provides a simple yet effective sealing solution that requires no complex mechanical assembly. The sleeve is inserted and expands to seal around the ball, maintaining sealing performance without complicating the manufacturing process or assembly steps.
3Reliability
If elastic sleeves or sealing caps are used to improve sealing, then leakage is reduced, but they cannot guarantee reliable closure without supplementary mechanical support
Solution Approach 1:
The patent merges the sealing function and the ball retention function into a single integrated elastic sealing structure. The sealing member with its slit configuration simultaneously provides leakage prevention and controls liquid flow, eliminating the need for separate mechanical support structures or supplementary sealing components.
4Device complexity
If conventional applicator heads are used, then the structure is simple, but they lack space for electrical components, transparent outlet structures for light emission, or stable mounting frameworks for vibration modules
Solution Approach 1:
The container head design incorporates multiple functions within a unified structure. The head includes an applicator for product application, a transparent outlet structure for light emission, mounting provisions for vibration modules, and integrated sealing and flow control mechanisms, enabling multifunctional operation without excessive 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
The container head provides secure, hygienic, and multifunctional delivery of skincare products by preventing leakage, ensuring precise dispensing, and integrating therapeutic benefits like massage and light treatment.
Implementation Method 1
the elastic sealing structure is provided with a slit, the slit being normally closed to prevent leakage of liquid from the liquid storage container and elastically deformable to open under liquid pressure to permit flow through the liquid outlet end
Data Source
AI summary
Embodiments of the invention relate to a container head designed for dispensing and applying liquid or semi-liquid skincare compositions. The container head includes a head body with a liquid inlet, a liquid outlet, and a channel connecting them. An elastic sealing structure, positioned at or near the outlet, comprises a sleeve body with a slit that normally remains closed to prevent leakage and elastically opens under pressure to allow controlled dispensing. A rolling ball applicator is rotatably mounted at the outlet in fluid communication with the sealing structure to deliver liquid to the skin during rolling contact. A detachable cover is provided to press the ball against the sealing structure, ensuring reliable sealing during storage and transport. Optional embodiments may include a flexible connection tube, a phototherapy lamp, and a vibration motor, thereby enabling multifunctional treatment and enhancing absorption of skincare formulations.