Compact Continuous Sprayer With Piston And Valve Needle Control
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Solution Overview
Problem
Existing sprayers fail to provide continuous spraying, limiting their effective utilization in applications requiring even distribution of liquids.
Innovation Solution
A short and small continuous sprayer design featuring a spray head connected to a valve rod with a piston and springs, allowing for continuous liquid flow through a valve needle and cylinder mechanism, enhancing sealing and stability with annular bulges and press-fit surfaces, and incorporating a suction mechanism for liquid replenishment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If a conventional sprayer uses a simple valve mechanism, then the structure is simple and easy to manufacture, but the spraying is not continuous and the spraying range cannot be effectively utilized
Solution Approach 1:
The patent implements continuous spraying by designing a valve mechanism where the piston and valve needle work together to maintain continuous liquid flow. The piston moves up and down to control the valve needle, allowing liquid to flow continuously through the spray head without interruption, thus achieving continuous useful action during a single press
Solution Approach 2:
The patent introduces a piston as an intermediary component between the valve rod and valve needle. The piston mediates the motion transmission and controls the opening and closing of the valve needle, enabling continuous spraying while maintaining a relatively simple overall structure
2Reliability
If the sprayer uses a piston and spring mechanism to achieve continuous spraying, then spraying continuity is improved, but the device complexity increases
Solution Approach 1:
The patent uses periodic action of the piston moving up and down under spring force to control the valve needle. The periodic motion of the piston creates rhythmic opening and closing of the valve, ensuring stable and reliable continuous spraying while keeping the mechanism relatively simple through repetitive motion patterns
Solution Approach 2:
The spring mechanism provides self-service by automatically pushing the piston up and down without external control. The spring energy stores and releases automatically to drive the piston motion, ensuring reliable spraying stability while reducing the need for complex external control systems
3Productivity
If the sprayer is designed for continuous spraying, then liquid utilization efficiency is improved, but liquid waste may increase if not controlled properly
Solution Approach 1:
The patent implements feedback control through the piston and valve needle mechanism. The piston position and valve needle opening are automatically adjusted based on the pressure differential and spring force, providing self-regulating feedback that maintains optimal liquid flow and prevents excessive liquid waste while ensuring continuous spraying efficiency
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
Enables continuous spraying with reduced liquid waste, improved sealing, and flexible application range, ensuring stable operation and efficient liquid use.
Implementation Method 1
the retaining cavity is provided with an upper spring, the upper spring is connected to a piston... the cylinder body is connected to a lower spring, and the lower spring is connected to the valve needle
Implementation Method 2
the moving cavity is provided with a suction tube in a communication manner
Data Source
AI summary
A short and small continuous sprayer, including a spray head, where the spray head is connected to a valve rod, the valve rod is provided with a retaining cavity, the retaining cavity is provided with an upper spring, the upper spring is connected to a piston, a valve needle is arranged in the piston and sleeved on the valve rod, an inner cavity is formed between the piston and the valve needle, the piston is sleeved with a cylinder body, a liquid cavity is formed between the cylinder body and the piston, the cylinder body is connected to a lower spring, the lower spring is connected to the valve needle, the cylinder body is provided with a moving cavity, and a steel ball is arranged in the moving cavity.