Swing Spray Gun Nozzle with 360-Degree Venturi Tube
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Solution Overview
Problem
Existing spray gun nozzles have limited spraying angles, complex structures, high manufacturing costs, and are not replaceable, leading to inefficiencies and noise issues due to restricted swing angles and potential damage from weights.
Innovation Solution
A nozzle design with a cone-shaped outer part and multiple paths around a neck hole, featuring a swing member with wings and a Venturi-tube that allows 360-degree swinging, reducing noise and enabling multiple spraying patterns through interchangeable cone-shaped nozzles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rotatable member with bearing is added to enable spraying in blind areas, then the spraying coverage is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent applies the dynamics principle by making the nozzle body itself rotatable through a swing member mechanism. The nozzle can swing between a horizontal position and an upward position at a 45-degree angle, enabling it to spray in previously unreachable blind areas. This dynamic positioning capability improves spraying coverage without requiring complex multi-component assemblies, as the rotation is achieved through a simplified swing mechanism integrated into the nozzle structure.
2Adaptability or versatility
If weights are added to restrict the swing angle of the Venturi-tube, then the blind area problem is solved, but noise is generated and the risk of damage increases
Solution Approach 1:
The patent applies the extraction principle by completely removing the weights that were previously used to restrict the swing angle of the Venturi-tube. Instead of using weights that caused noise and potential damage, the invention achieves swing angle control through the geometric design of the nozzle structure itself, specifically through the relative positioning of the spray outlet and the swing member, which naturally limits the swing range without harmful components.
3Adaptability or versatility
If the nozzle structure is made complex to achieve multiple spraying patterns, then the versatility is improved, but the manufacturing cost and maintenance expense increase
Solution Approach 1:
The patent applies the universality principle by designing a single nozzle structure that can perform multiple spraying functions. The nozzle can switch between different spraying patterns (including spray in blind areas, spray upward at 45 degrees, and horizontal spray) through the swing member mechanism and different positioning of the spray outlet, eliminating the need for multiple specialized nozzles and reducing manufacturing and maintenance costs.
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 design enhances spraying efficiency with a wider angle, reduces noise, and lowers maintenance costs by simplifying the structure and allowing for interchangeable nozzles, providing effective and versatile spraying patterns.
Implementation Method 1
When high pressure fluid is introduced into the first room, the swing member swings by the high pressure fluid, and the tube and the inner part swing with the swing member
Implementation Method 2
A Venturi-tube extending through the front outlet of the spray gun, the cone-shaped way and the tube
Data Source
AI summary
A nozzle of a spray gun includes an outer part connected to the spray gun. The outer part includes a neck portion formed therein. A neck hole is formed through the neck portion. Multiple paths are defined through the neck portion. The neck portion divides the inner space of the outer part into a first room and a second room. A tube extends through the neck hole and the tube. A swing member is located in the first room and connected to the rear end of the tube. An inner part is located in the second room and connected to the front end of the tube. High pressure fluid is introduced into the first room to swing the swing member. The tube and the inner part swing with the swing member. The high pressure fluid enters into the second room via the paths and spray out from the outer part.