Bottom-Filled Spraying Bottle Valve Assembly
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Solution Overview
Problem
The existing liquid spraying bottle design faces issues with inaccurate trepanning of filling and exhaust ports, complex valve core installation, insufficient precision in valve seat and core design, a large and aesthetically unpleasing structure, and low sealing effectiveness due to O-shaped sealing ring deformation.
Innovation Solution
A compact liquid spraying bottle design featuring a spraying head assembly with a valve core, valve bush, and tail cover, utilizing a spring for liquid filling and exhaust functions, with a symmetrical structure and multiple-gap exhaust passage, and enhanced sealing using O-shaped sealing rings and silica gel cushions, facilitating easy assembly and improved sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual trepanning is used for filling and exhaust ports, then flexibility in port placement is achieved, but positioning accuracy and production efficiency deteriorate
Solution Approach 1:
The valve core is pre-formed with precisely positioned filling and exhaust ports before assembly. This preliminary precision manufacturing of the valve core eliminates the need for manual trepanning during final assembly, ensuring consistent port positioning accuracy while maintaining the flexibility to place ports at optimal locations in the bottle structure.
2Adaptability or versatility
If non-circular symmetrical valve core structure is used, then liquid filling and exhaust functions are achieved, but installation complexity and time increase
Solution Approach 1:
The valve core employs an asymmetric non-circular structure with specifically shaped filling and exhaust ports that optimize liquid flow characteristics. This asymmetric design enables effective liquid filling and exhaust functions while the pre-formed nature of the asymmetric structure simplifies installation by eliminating the need for complex on-site modifications.
3Reliability
If traditional valve seat and valve core design is used, then basic sealing function is achieved, but design precision and product rate deteriorate due to injection molding shrinkage
Solution Approach 1:
The valve seat and valve core designs incorporate optimized geometric parameters and dimensional tolerances that compensate for injection molding shrinkage. By carefully selecting and adjusting design parameters such as wall thickness, cooling rates, and mold shrinkage factors, the invention achieves high manufacturing precision and consistent sealing performance despite the inherent variability of injection molding processes.
4Ease of operation
If loose structure design is used, then assembly ease is improved, but liquid containing space and aesthetic appearance deteriorate
Solution Approach 1:
The invention employs a nested structure where the valve core is inserted into the valve seat, and the valve assembly is integrated within the bottle body. This nested arrangement maintains ease of assembly through simple insertion while maximizing the use of internal space, thereby increasing the effective liquid containing volume and improving aesthetic appearance by eliminating loose, space-wasting structures.
5Reliability
If O-shaped sealing ring is used, then sealing function is achieved, but extrusion deformation during installation reduces sealing reliability
Solution Approach 1:
The invention utilizes a flexible sealing ring that can deform elastically during installation to accommodate slight dimensional variations and then maintains reliable sealing through its elastic recovery. The sealing ring's flexible membrane structure allows it to conform to the mating surfaces while resisting extrusion deformation, ensuring consistent sealing performance without compromising integrity during the assembly process.
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 new design ensures reliable sealing, simplifies assembly, reduces the volume of functional areas, increases the effective liquid space, and enhances aesthetic appeal while improving customer satisfaction with higher production efficiency and pressure testing performance.
Implementation Method 1
a spring arranged between the top end of the valve core and the inner cavity of the valve bush; during liquid filling, the valve core moves upwards in the valve bush and resets through the spring
Data Source
AI summary
The invention relates to the technical field of spraying bottles with bottoms filled with liquid, in particular to a compact liquid spraying bottle with a bottom filled with liquid. The compact liquid spraying bottle comprises a spraying head, a bottle body and a liquid filling and exhaust function assembly arranged at the bottom of the bottle body, wherein the liquid filling and exhaust function assembly comprises a valve core, a valve bush, a valve seat and a tail cover which are matched jointly to realize liquid filling and exhaust functions. The liquid filling and exhaust function assembly of the invention has a relatively good sealing property on the whole and a relatively compact structure, so that the occupied space of a function area is reduced, the containing space of effective liquid is increased, and the degree of satisfaction of customer use is improved.