Integral Accumulation Valve for Trigger Sprayer Stability
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Solution Overview
Problem
The accumulator sprayer's accumulation valve experiences horizontal oscillation and instability in piston valve movement, and the multi-part configuration increases the number of assembling steps, with existing attempts at improving stability not adequately addressing rapid downward movement sensitivity.
Innovation Solution
The accumulation valve is redesigned with integral components, including a piston valve, spring, and mounting portion, featuring two-tiered flange portions and a bent leaf-spring shape, which are pressure-fitted to the piston, reducing assembly steps and enhancing movement stability and sensitivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the accumulation valve is composed of multiple separate parts (piston valve, spring body, piston cover), then the structure is modular and easier to manufacture individually, but the number of assembling steps increases and horizontal oscillation occurs reducing stability
Solution Approach 1:
The patent merges the piston valve, spring body, and piston cover into a single integrated accumulation valve component. This integration eliminates the need for multiple separate parts and their corresponding assembly steps, directly resolving the contradiction between ease of manufacture and device complexity by combining multiple components into one unified structure that is manufactured as a single piece.
2Stability of the object's composition
If flange portions are added around the piston valve to prevent horizontal oscillation, then movement stability improves, but the structure becomes more complex and rapid downward movement is hindered
Solution Approach 1:
The flange portions are integrated directly into the piston valve structure as part of the unified accumulation valve component. This merging approach provides the stabilizing flange structure without adding separate components, thus improving stability while avoiding increased device complexity. The flange portions are formed as integral features of the single-piece valve structure.
3Speed
If the piston valve structure is simplified to enable rapid downward movement, then responsiveness improves, but horizontal oscillation increases reducing stability
Solution Approach 1:
The integrated design combines the piston valve, spring body, and piston cover into one unified structure with built-in flange portions. This merging creates a rigid, stable structure that resists horizontal oscillation while maintaining the ability to move rapidly downward when activated, as the integrated construction eliminates play and misalignment between separate components.
Solution Approach 2:
The accumulation valve structure employs asymmetric design where the flange portions extend horizontally to provide stability, while the main body remains streamlined for vertical movement. This asymmetric configuration allows the valve to be stable in the horizontal plane while maintaining freedom of rapid vertical motion, resolving the contradiction between stability and speed.
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 achieves stable and sensitive piston valve movement with reduced resistance, allowing for rapid downward movement and simplified assembly by integrating parts, thereby enhancing the pressure-accumulating function and reducing the number of parts in the sprayer.
Implementation Method 1
a spring portion for pressing the piston valve portion on to a piston valve seat
Implementation Method 2
when a pressure within a cylinder exceeds a given pressure, liquid is discharged from a nozzle at one stroke
Data Source
Figure 1A~1C
Figure 2A~2B
Figure 3A~3B
AI summary
To provide an accumulation valve which is stable and moves sensitively, where the number of parts has been reduced, and an accumulator trigger sprayer assembled with the same. The present invention is an accumulation valve S used in an accumulator trigger sprayer 100 which imparts pressure to liquid in a cylinder by a piston portion 11 to spray liquid from a nozzle portion 5a to the outside, the accumulation valve S including a piston valve portion 21, a spring portion 22 for pressing the piston valve portion 21 to a piston valve seat, and a mounting portion 23 for mounting the spring portion 22 to the piston portion 11, wherein the piston valve portion 21, the spring portion 22 and the mounting portion 23 are formed integrally.