Spray Head Insert Member Radial Grooves Stabilize Ejection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing ejection heads lack stability in ejection patterns, leading to inconsistent spraying angles and states.
Innovation Solution
An ejection head design featuring a pressing member with an introduction path, a nozzle tip with an ejection orifice, and an insert member forming a communication path, including a concave portion with radial grooves and a cylindrical groove, which stabilizes the ejection of content medium through a series of communication paths and rotational forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional ejection head design is used, then the structure is simple, but the ejection pattern stability is poor
Solution Approach 1:
The insert member is divided into multiple functional zones: a concave portion with radial grooves for rotational motion, a through-hole for linear flow, and a long groove for directional guidance. This segmentation allows each zone to contribute to stabilizing the ejection pattern through different mechanisms, resolving the contradiction between reliability improvement and structural complexity.
Solution Approach 2:
The insert member is nested within the nozzle tip, creating a compact multi-functional structure. The insert member contains multiple grooves and passages within its body, effectively nesting flow control features within a single component that fits inside the nozzle tip, achieving stable ejection without requiring a complex external structure.
2Reliability
If the through hole is aligned with radial grooves, then the structure is simple, but the ejection pattern is unstable
Solution Approach 1:
The design intentionally creates an asymmetric configuration where the through-hole is positioned at an angle of 45° to 135° relative to the radial grooves, rather than being aligned with them. This asymmetric positioning forces the content medium to follow a complex flow path that combines rotational and linear components, generating stable rotational force and improving ejection pattern consistency.
Solution Approach 2:
The angular parameter between the through-hole and radial grooves is specifically set to 45°-135° to optimize the flow dynamics. This parameter change transforms the flow pattern from a simple linear path to a rotational path, generating consistent spray patterns through controlled rotational motion of the content medium.
3Productivity
If a single ejection path is used, then the device is simple, but the spraying performance is insufficient
Solution Approach 1:
The ejection system is segmented into multiple communication paths: the concave portion with radial grooves creates one flow path for rotational motion, the through-hole creates a second path for linear flow, and the long groove creates a third path for directional guidance. This segmentation of the ejection path allows the content medium to be sprayed through multiple coordinated channels, significantly enhancing spraying performance.
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 design achieves improved stability and consistency in ejection patterns by ensuring proper communication and distribution of the content medium, resulting in enhanced spraying performance compared to conventional systems.
Implementation Method 1
the front end being formed with a bulging portion that protrudes forward of the inclined surface, the bulging portion being formed with a plurality of radial grooves and a cylindrical groove where the plurality of radial grooves joins
Implementation Method 2
a long groove that is formed on the circumferential wall and that extends from the at least one through hole to the nozzle tip
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The ejection head includes a pressing member 50; a nozzle tip 60 that is fitted to a concavity 50n; and an insert member 70. The insert member 70 includes: a concave portion 70n that forms a filling space R3 for the content medium M; at least one through hole 73 formed on a circumferential wall 72; and a long groove 74 that extends from the through hole 73 to the nozzle tip 60. The insert member has a front end 70a having an outer circumferential edge formed as an annular inclined surface 75, and the front end 70a is formed with a bulging portion 71 a. The bulging portion is formed with a plurality of radial grooves 76 and a cylindrical groove 77. At least one through hole 73 is located in a position that is circumferentially offset from the plurality of radial grooves 76.