Chemical Solution Supply Apparatus Valve Control
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Solution Overview
Problem
Existing chemical solution supply apparatuses face issues with clogging due to dirt on the skin, leading to insufficient supply when the sponge is used, and excessive supply when it is removed, failing to maintain a consistent chemical solution application.
Innovation Solution
A chemical solution supply apparatus with a base and supply body that includes a retaining portion to prevent detachment, a pressing portion to close the container, and a restricting portion to control displacement, forming a supply flow passage and blocking it as needed to regulate the chemical solution flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the sponge is used to supply chemical solution, then the chemical solution supply amount can be controlled, but clogging occurs due to dirt on skin leading to insufficient supply
Solution Approach 1:
The invention extracts the sponge from the supply system and replaces it with a direct valve-controlled outlet. The movable valve and spring mechanism are integrated into the inner lid, eliminating the need for a sponge while maintaining controlled supply through the valve's opening/closing action based on pressing force.
Solution Approach 2:
The invention introduces a movable valve as an intermediary between the chemical solution storage and the outlet. The valve, controlled by spring pressure and external pressing, mediates the flow of chemical solution, allowing precise control of supply amount without using a sponge that can clog.
2Reliability
If the sponge is removed to avoid clogging, then supply reliability improves, but the chemical solution supply amount becomes excessive
Solution Approach 1:
The invention implements a feedback mechanism where the spring continuously urges the movable valve to close, and external pressing force opens the valve proportionally. This feedback loop between spring pressure and applied force automatically regulates the chemical solution supply amount, preventing excessive supply while eliminating the sponge.
Solution Approach 2:
The invention replaces the static sponge with a dynamic valve system that can adjust its opening degree based on applied pressing force. The movable valve's position changes dynamically with the balance between spring urging force and external pressing force, enabling controlled supply without a sponge.
3Quantity of substance
If the pressing amount of the movable valve increases to supply more chemical solution, then the supply amount increases, but excessive supply occurs when the sponge is removed
Solution Approach 1:
The invention changes the control parameter from binary (sponge present/absent) to continuous (valve opening degree). The movable valve's opening degree varies continuously with the pressing force applied, providing precise control over chemical solution supply amount and eliminating the all-or-nothing supply problem of sponge removal.
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
This design ensures a consistent supply of chemical solution, preventing both insufficient and excessive application by controlling the flow passage and restricting displacement, maintaining a controlled supply amount.
Implementation Method 1
A spring and a movable valve are connected to the plug body. The spring urges the movable valve from the inside of the inner lid to the inner lid.
Implementation Method 2
a gap is formed between the outlet portion and the shoulder portion by the protruding portion being pressed toward the inside of the inner lid against the urging force of the spring, so that the chemical solution in the container flows out to the outside of the inner lid through the outlet
Data Source
AI summary
A chemical solution supply apparatus (1) includes a container (10) and a chemical solution supply implement (20) that, in a state of being connected to a mouth portion (14), can switch over a state where the container (10) is sealed and a state where a chemical solution in a storage portion (12) is allowed to be supplied to the outside of the container (10). The chemical solution supply implement (20) has a base (30) and a supply body (50). The base (30) has a retaining portion (40), a pressing portion (42), and a restricting portion (34) that restricts displacement of the supply body (50) with coming into contact with the supply body (50) when the supply body (50) is pressed against pressing force of the pressing portion (42). The supply body (50) moves away from the retaining portion (40) to thereby form a supply flow passage, and comes into contact with the retaining portion (40) to thereby block the supply flow passage.