Rotatable Angled Suction Tube for Complete Spray Gun Pickup
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Solution Overview
Problem
Existing spray guns with straight suction tubes face issues with incomplete suction and material residue due to the material concentrating at the lowest point when tilted, especially with highly viscous materials, leading to inefficiencies in material utilization.
Innovation Solution
A rotatable suction tube device with a rotary knob and angled suction tube design, allowing the feeding end to adjust to the tilt of the material reservoir, ensuring complete suction and minimizing residue through an angled suction tube and sealing mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a flexible gravity ball suction tube is used, then the suction tube can follow gravity to reach the lowest point when tilted, but the swing is affected by material viscosity making it difficult to quickly contact the liquid
Solution Approach 1:
The suction tube is designed with a rotatable joint that allows dynamic adjustment of its angle. The tube can rotate to different positions based on the reservoir tilt angle, ensuring it always points toward the liquid material. This dynamic positioning mechanism overcomes the viscosity-related swinging delays of gravity ball systems while maintaining ease of operation.
Solution Approach 2:
The suction tube is divided into multiple segments connected by rotatable joints. This segmentation allows each section to rotate independently, enabling the tube to adapt to different tilt angles and quickly contact the liquid material without being hindered by high viscosity, thus improving both ease of operation and productivity.
2Length of moving object
If the flexible suction tube is made longer, then it can reach the lowest point when horizontal, but the feeding end may tilt upward when tilted, leaving material uncollected
Solution Approach 1:
Instead of using a fixed long tube, the invention employs a tube with rotatable joints that can dynamically adjust its angle. This allows the feeding end to maintain proper orientation toward the liquid material regardless of reservoir tilt, preventing the tube end from tilting upward and leaving material uncollected, thus ensuring reliable complete suction.
Solution Approach 2:
The suction tube design incorporates asymmetric angle adjustment capability through its rotatable joints. The tube can be positioned at different angles depending on the reservoir orientation, allowing it to effectively reach the liquid material in various positions without the feeding end tilting upward, thereby ensuring complete material collection.
3Productivity
If the flexible suction tube is made shorter, then it responds faster to gravity ball movement, but it cannot reach the lowest point when horizontal, resulting in incomplete suction
Solution Approach 1:
The rotatable joint mechanism enables a shorter suction tube to achieve the same effective reach as a longer tube by adjusting its angle. The tube can rotate to extend its reach toward the liquid material horizontally or tilt to reach the lowest point when the reservoir is tilted, maintaining both rapid response and complete suction capability.
Solution Approach 2:
The suction tube utilizes angular dimension through rotatable joints to compensate for reduced length. By introducing rotational freedom, the shorter tube can reach positions that would require a longer fixed tube, achieving complete material suction while maintaining fast response characteristics.
4Device complexity
If a straight suction tube is used, then the structure is simple, but material concentrates at the lowest point when tilted causing large amounts of material to be unable to be properly suctioned
Solution Approach 1:
The suction tube incorporates rotatable joints that allow it to dynamically adjust its orientation based on reservoir tilt. This maintains relatively simple structure while enabling the tube to follow the liquid material to the lowest point when tilted, ensuring complete material suction without significant increase in device complexity.
Solution Approach 2:
The suction tube is segmented with rotatable joints that allow each section to adjust independently. This segmented design enables the tube to adapt to tilted positions and reach the liquid material effectively, improving suction completeness while adding only minimal structural complexity compared to a straight tube.
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
Ensures thorough material suction and reduces residue by maintaining the feeding end in contact with the liquid, improving material utilization and stability regardless of viscosity, while maintaining a reliable seal and efficient gas flow.
Implementation Method 1
When the spray gun is tilted during operation, the material in the material reservoir gathers at the lowest point of the reservoir due to gravity
Implementation Method 2
a sealed structure, including a sealing collar, a sealing disc and a sealing gasket
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
The present disclosure provides a rotatable suction tube device and a spray gun thereof, wherein the rotatable suction tube device comprises: a rotary knob, which is rotatably arranged at the top of the gun body of the spray gun; a rotary coupling part, one end of which is arranged on the rotary knob and is movably inserted into the material suction hole of the spray gun; an angled suction tube, including a straight tube and an inclined tube connected to each other, the straight tube being rotatably arranged in the material suction hole and connected to the other end of the rotary coupling part, the inclined tube being arranged obliquely, and the end of the inclined tube being close to the junction of the side wall and the bottom of the material reservoir of the spray gun.