Reciprocating Bar Holder for High-Pressure Washing Vibration Control

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing high-pressure washing apparatuses face challenges with vibration acceleration, increased size and weight, and high costs due to complex structures and inefficient washing patterns, making them difficult to handle and maintain, especially for hand-held applications and large surfaces.

Innovation Solution

A high-pressure washing apparatus with a bar-shaped holder and nozzles arranged at constant intervals, rotating reciprocally around its longitudinal axis, ejecting washing liquid in a straight-line shape while the object is conveyed, reducing vibration and ensuring uniform coverage without the need for extensive holder tilting or complex seal structures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the holder is rotated in a circular shape to increase washing density, then the washing density increases, but the holder or the overall apparatus vibrates growingly

Engineering Contradiction:

Improvewashing densityVSAvoidvibration acceleration

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The holder is designed to perform reciprocating rotation within a predetermined rotational angle range rather than continuous circular rotation. This dynamic motion pattern reduces vibration acceleration while maintaining effective washing density by alternating the rotation direction within controlled angular limits.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The rotational parameters of the holder are changed from continuous circular rotation to reciprocating rotation within a predetermined angle range. This parameter modification allows the system to achieve adequate washing density while significantly reducing the harmful vibration acceleration that increases with rotational speed.

Inventive Principle:

Principle #35Parameter changes

2Area of stationary object

If the number of nozzles is increased to wash larger areas, then the washing coverage increases, but the holder length and outer diameter increase significantly

Engineering Contradiction:

Improvewashing coverage areaVSAvoidholder length

Core Design Contradiction:

Area of stationary objectVSLength of moving object

Solution Approach 1:

Instead of increasing the number of nozzles along the holder length, the invention utilizes the reciprocating rotation of the holder to sweep the washing liquid coverage across a larger area. This dimensional approach transforms the coverage problem from a linear arrangement to a rotational sweeping motion, achieving larger coverage without proportionally increasing holder dimensions.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Use of energy by moving object

If convergent nozzles are used to eject washing liquid in a single straight-line shape, then the energy density increases, but the regions to which washing liquid is applied are very small

Engineering Contradiction:

Improveenergy density of washing liquidVSAvoidwashing liquid application area

Core Design Contradiction:

Use of energy by moving objectVSArea of stationary object

Solution Approach 1:

The holder performs reciprocating rotation to dynamically sweep the high-energy density washing liquid from convergent nozzles across a larger area. This dynamic motion compensates for the small instantaneous application area of single straight-line jets, achieving both high energy density and adequate overall coverage through the sweeping motion.

Inventive Principle:

Principle #15Dynamics

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 apparatus achieves reduced vibration, cost, and size, while ensuring high washing density and uniformity across large surfaces, with a simpler structure that maintains effective washing performance and flexibility in washing trajectories.

Implementation Method 1

a plurality of high-pressure washing liquid ejecting nozzles arranged at constant intervals along a longitudinal direction of the bar-shaped holder

Methodology Applied

Scientific EffectHigh-pressure fluid flow: Pressure Gradient

Implementation Method 2

the holder being reciprocatingly rotated around the longitudinal axis within a predetermined rotational angle

Methodology Applied

Scientific EffectMechanical rotation:

Data Source

PatentUS9101965B2High-pressure washing liquid ejecting washing apparatus

Publication Date: 2015.08.11 KAWASAKI JUKOGYO KK

AI summary

A high-pressure washing liquid ejecting washing apparatus comprises a bar-shaped holder; and a plurality of high-pressure washing liquid ejecting nozzles arranged at constant intervals along a longitudinal direction of the bar-shaped holder, the holder being supported at both sides in a longitudinal direction thereof such that the holder is rotatable around its longitudinal axis, the holder being reciprocatingly rotated around the longitudinal axis within a predetermined rotational angle and the ejecting nozzles ejecting a high-pressure washing liquid to a washed surface of an object in a single straight-line shape to wash the object while the object is conveyed at a constant speed with respect to the holder, wherein the holder has a length which is not less than a length across the object and is disposed such that the holder is orthogonal to a direction in which the object is conveyed or is tilted with respect to the direction in which the object is conveyed, when viewed from a normal line direction of the washed surface.