Trigger Sprayer Valve Body Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing trigger-type liquid dispensers have a complex configuration with multiple components, making them difficult to assemble and prone to component misalignment, particularly with the valve body falling during assembly.
Innovation Solution
The dispenser is redesigned to include a joint member with a through hole that can be closed by a valve body, which is accommodated in a valve-body-holding wall portion, reducing the number of components needed and preventing the valve body from slipping off, thus simplifying assembly by configuring the upright and inverted dual unit with only three members: the joint member, pipe holding member, and valve body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the upright and inverted dual unit is configured with multiple members (joint member, pipe holding member, intermediate member, valve body), then the functional requirements are met, but the number of components increases and assembly becomes difficult
Solution Approach 1:
The patent merges the intermediate member's functions into the joint member by integrating the through hole and valve-body-holding wall portion directly into the joint member structure. This eliminates the need for a separate intermediate member while maintaining the valve body accommodation and liquid flow control functions, thereby reducing component count and simplifying assembly.
2Reliability
If the intermediate member is used to hold the valve body, then the valve body is supported, but the intermediate member may disengage during assembly and the valve body may fall
Solution Approach 1:
The joint member is pre-configured with the through hole and valve-body-holding wall portion during manufacturing, eliminating the need for separate assembly steps to install an intermediate member. The valve body is directly inserted into the pre-formed holding structure, preventing disengagement issues and ensuring proper support from the beginning.
3Reliability
If the valve body is inserted between the joint member and intermediate member, then the valve body is positioned, but assembly becomes complex and prone to misalignment
Solution Approach 1:
The joint member is segmented into distinct functional portions: the through hole for liquid flow and the valve-body-holding wall portion for valve body support. This segmentation allows the valve body to be independently inserted and positioned without requiring coordination between multiple members, simplifying the assembly process while ensuring proper positioning.
Data Source
Figure 1
Figure 2
Figure 3A~3C
AI summary
The present disclosure provides trigger-type liquid dispenser 1, in which upright and inverted dual unit 40 includes joint member 41, pipe holding member 42, and valve body 43. Joint member 41 includes through hole 41e, which may be closed by valve body 43, valve-body-holding wall portion 41f, which accommodates valve body 43 above through hole 41e in manner such that valve body 43 is displaceable upward and downward, and opening portion 41g, which is formed in valve-body-holding wall portion 41f. In inverted position, upright and inverted dual unit 40 permits content liquid contained in container C to be supplied to dispenser main body 30 by passing content liquid through flow path from opening portion 41g, through hole 41 e, to flow path defined between joint member 41 and pipe holding member 42 sequentially. Valve body 43 is inserted through opening portion 41g to be accommodated in valve-body-holding wall portion 41f.