Rectangular Nozzle Spray Head for Uniform Cleaning Coverage
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Solution Overview
Problem
Existing nozzles used for cleaning are limited by their single-hole design, resulting in a focused water stream that fails to evenly cover the surface of objects, leading to potential missed areas during cleaning.
Innovation Solution
A spray head with a cylindrical nozzle featuring a first through hole with varying cross-sectional areas and a protruding annular portion, allowing for uniform pressure dispersion and flat ejection of cleaning liquid, along with a rotatable design for 360-degree coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single-hole nozzle is used, then the water stream is focused and easy to control, but the surface coverage is insufficient and cleaning completeness deteriorates
Solution Approach 1:
The single-hole nozzle is segmented into multiple holes (first hole and second hole) with different orientations. The first hole directs water stream along the axial direction while the second hole directs water stream radially outward, enabling both focused control and broad surface coverage simultaneously
Solution Approach 2:
The nozzle structure transitions from a single-dimensional axial spray to multi-dimensional spraying by adding a radially oriented second hole. This dimensional expansion allows water to be ejected in multiple directions (axial and radial), significantly increasing surface coverage while maintaining operational control
2Device complexity
If a single-hole nozzle is used, then the nozzle structure is simple, but the cleaning completeness deteriorates due to missed areas
Solution Approach 1:
The nozzle is segmented into multiple functional holes (first hole for axial spray, second hole for radial spray) that work together to ensure complete surface coverage. This segmentation maintains relatively simple structure while dramatically improving cleaning reliability by eliminating missed areas
Solution Approach 2:
Different regions of the nozzle are assigned different functions: the first hole provides focused axial cleaning for specific spots, while the second hole provides radial coverage for surrounding areas. This local differentiation ensures comprehensive cleaning without requiring complex overall structure
3Stability of the object's composition
If a nozzle with varying cross-sectional areas is used, then pressure dispersion uniformity is improved, but manufacturing precision requirements increase
Solution Approach 1:
The nozzle employs varying cross-sectional areas (first cross-sectional area for first hole, second cross-sectional area for second hole) to optimize pressure dispersion. By carefully selecting and controlling these geometric parameters during design, uniform pressure distribution is achieved while keeping manufacturing requirements within feasible precision ranges
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 spray head ensures comprehensive surface coverage and ease of cleaning by uniformly dispersing the cleaning liquid and allowing for directional adjustment, reducing the likelihood of missed areas.
Implementation Method 1
a first through hole (16) penetrating the inlet portion (12) and the outlet portion (14) in the axial direction X... wherein a sectional area of the first portion (162) perpendicular to the axial direction X is greater than a sectional area of the second portion (164) perpendicular to the axial direction X
Data Source
AI summary
A spray head includes a nozzle, a sealing gasket, a first nut, and a screw. The nozzle includes an inlet portion, an outlet portion extending from an end of the inlet portion along an axial direction, and a first through hole penetrating the inlet portion and the outlet portion along the axial direction. The first through hole defines an opening on a surface of the outlet portion facing away from the inlet portion. The opening is rectangular. The sealing gasket is sleeved on the inlet portion. The first nut is sleeved on the nozzle and receiving the sealing gasket. The screw is located on a side of the sealing gasket facing away from the outlet portion and is engaged with the first nut. A second through hole penetrates the screw communicating with the first through hole. The disclosure also provides a cleaning device having the spray head.