Adjustable Nozzle Support for Collapsible Tube Caulking Gun
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Solution Overview
Problem
Existing caulking guns do not efficiently dispense caulk from collapsible tubes and lack a mechanism to adjust the nozzle aperture distance effectively, making them inconvenient for use with varying tube sizes.
Innovation Solution
A collapsible tubing caulking gun design featuring a handle, trigger, squeegee, tube grip, and nozzle support that allows the collapsible tube to be pulled rearwards through the squeegee, with a nozzle support that adjusts the distance between the nozzle aperture and the tube grip to match the tube size, enabling efficient caulk dispensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing caulking guns are used with collapsible tubes, then caulk dispensing is possible, but the dispensing efficiency is poor and compatibility with varying tube sizes is lacking
Solution Approach 1:
The nozzle support is made adjustable along the barrel axis, allowing the distance between the nozzle aperture and tube grip to be dynamically changed to match different tube sizes. This dynamic adjustment capability enables the device to adapt to varying tube dimensions while maintaining efficient caulk dispensing performance
Solution Approach 2:
The adjustable nozzle support changes the geometric parameter of the nozzle-to-tube-grip distance according to the tube size being used. By varying this distance parameter, the device optimizes its performance for different tube dimensions, resolving the contradiction between maintaining dispensing efficiency and accommodating tube size variations
2Adaptability or versatility
If the nozzle aperture distance is fixed, then the device structure is simple, but it cannot match different tube sizes effectively
Solution Approach 1:
The nozzle support is separated from the fixed barrel structure and made as an independent adjustable component. This segmentation allows the nozzle support to be positioned at different locations along the barrel axis, enabling adaptation to various tube sizes without complicating the overall device structure
3Productivity
If the tube is pulled through the squeegee during dispensing, then caulk can be dispensed, but the tube may not be properly retained without a tube grip mechanism
Solution Approach 1:
The tube grip mechanism automatically engages with the collapsible tube as it is fed into the device, providing self-retention without requiring additional manual intervention. The tube grip works in conjunction with the squeegee mechanism, where the tube's own insertion triggers the gripping action, ensuring proper retention and positioning during the dispensing process
Data Source
AI summary
The collapsible tubing caulking gun comprises a handle, a trigger, a squeegee, a tube grip, and a nozzle support. The collapsible tubing caulking gun may dispense caulk from a collapsible tube. Activation of the trigger may force the collapsible tube rearwards through the squeegee resulting in the caulk being forced out of the collapsible tube via a nozzle. The collapsible tube may be retained between the tube grip which retains a sealed end of the collapsible tube and the nozzle support which retains the nozzle of the collapsible tube.