Spray Nozzle Base Segmentation for Finger Support
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Solution Overview
Problem
Existing spray nozzles for aerosol materials face difficulties in comfortable and efficient attachment to spray guns, lack of means for quick replacement, and risk of outlet damage during use, particularly in long and labor-intensive applications like heat insulation on large structures.
Innovation Solution
A spray nozzle design featuring a cylindrical body with a base for finger support, a V-shaped recess with protective protrusions, and attachment means resembling a staple for easy handling and secure attachment to both the spray gun and aerosol container, ensuring quick and damage-free operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the nozzle body is made without finger support features, then the structure remains simple, but users experience difficulty in joining and mounting operations due to lack of stop for fingers
Solution Approach 1:
The base is segmented into oppositely arranged plate-like protrusions that extend beyond the cylindrical body, creating distinct finger support surfaces. This segmentation provides specific contact points for users' fingers during mounting operations, improving ease of joining without significantly complicating the overall structure.
Solution Approach 2:
The plate-like protrusions are provided with an anti-skid finish on their outer lateral sides, creating a localized region with enhanced friction properties. This local quality improvement ensures that users' fingers can rest comfortably and securely on these specific areas during attachment operations.
2Productivity
If the nozzle lacks attachment means, then the structure remains simple, but quick replacement of damaged apparatus during long operation is not enabled
Solution Approach 1:
The attachment means is designed with a universal interface that can attach to both the spray gun and the aerosol container, enabling the nozzle to be quickly connected and disconnected from either component. This multi-functional attachment capability facilitates rapid replacement during long operations without requiring different mechanisms for different attachment scenarios.
3Reliability
If the V-shaped recess is directly exposed without protective protrusions, then the structure remains simple, but the outlet is at risk of damage during use
Solution Approach 1:
Protective protrusions are arranged to extend beyond the cylindrical body and adjoin the lateral surface of the V-shaped recess, creating a protective barrier before any potential damage can occur to the outlet. These protrusions act as a first line of defense, shielding the vulnerable V-shaped recess during handling and operation.
Solution Approach 2:
The protective protrusions are specifically positioned to provide localized protection to the V-shaped recess area, with their outer lateral sides featuring anti-skid finish. This localized protection strategy safeguards the critical outlet region without requiring a complete redesign of the entire nozzle structure.
4Ease of operation
If the base is made without anti-skid finish, then manufacturing remains simple, but user comfort during preliminary manipulations is reduced
Solution Approach 1:
The anti-skid finish is applied specifically to the outer lateral sides of the plate-like protrusions where users' fingers make contact during mounting operations. This localized surface treatment provides enhanced user comfort and grip without requiring the entire nozzle to be manufactured with complex surface features.
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
Facilitates easy and reliable attachment of the nozzle to the spray gun, allows for quick replacement, reduces the risk of outlet damage, and ensures uniform application of polyurethane compositions by stabilizing the gas separation and jet orientation for efficient polymerization and foaming.
Implementation Method 1
spraying an aerosol material by gas pressure applied from within
Implementation Method 2
spraying a pressurized aerosol material in the form of a jet and/or spray
Data Source
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AI summary
The invention relates to spraying heads and may be used in spray guns for applying a pressurized aerosol material in the form of jets or spray. A spraying nozzle for spraying a polyurethane material comprises a cylindrical body provided, on a first end, with a base having a mounting aperture extending into the cylindrical body, forming a cavity for arranging a head of a gun. The base of the nozzle is in the form of oppositely-disposed leaves. A second end of the body is provided with a cylindrical shoulder, a through-bore of which is communicated with a V-shaped and laterally non-closed recess at the region of an outlet of the sprayed material. Oppositely arranged plate-like protrusions adjoin a lateral surfaces of the cylindrical shoulder. A mounting aperture end which adjoins the base has a circumferential cut. The spraying nozzle is provided with an attachment means used when in an inoperative position. The invention allows for improving and simplifying the process of mounting a nozzle to a spray gun, for decreasing the likelihood of damaging an outlet aperture, and for improving the orientation of a jet of a polyurethane composition.