Telescopic Hose Accessory with Conduit-Isolating Lock Channels

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Solution Overview

Problem

Existing hose accessories often fail to provide a satisfactory solution for directing water to inaccessible areas, as they lack a rigid and adjustable design with a flexible conduit that can maintain fluid flow effectively while adjusting length, and may damage the conduit due to repeated contact with locking mechanisms.

Innovation Solution

A hose accessory with a handle and slidable shaft, featuring a flexible conduit that extends between the handle and shaft, and a locking mechanism with channels to shield the conduit from the lock, allowing adjustable length and secure fluid flow without damaging the conduit.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a locking mechanism is used to secure the shaft in a fixed position, then the shaft can be secured reliably, but the flexible conduit may be damaged due to repeated contact with the locking mechanism

Engineering Contradiction:

Improveshaft positioning reliabilityVSAvoidconduit damage from locking mechanism contact

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The shaft is segmented into multiple sections that can be extended or retracted, with the locking mechanism securing specific segments at desired positions. This segmentation allows the conduit to remain flexible while the shaft achieves stable positioning without requiring the locking mechanism to contact the conduit directly.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A separate locking component (such as a pin or cam mechanism) acts as an intermediary between the shaft segments and the conduit. The locking mechanism engages with features on the shaft segments rather than contacting the conduit directly, eliminating the harmful contact while maintaining secure positioning.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Adaptability or versatility

If the shaft is made rigid and adjustable to reach inaccessible areas, then water can be directed to difficult-to-reach locations, but the device complexity increases

Engineering Contradiction:

Improveability to reach inaccessible areasVSAvoidstructure complexity of adjustable shaft

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The shaft is designed with nested telescopic sections that can be extended or retracted to reach varying distances. Each section fits within the previous section, allowing the shaft to adjust its length while maintaining a compact storage profile. This nested structure provides the adaptability to reach inaccessible areas without requiring an overly complex mechanism.

Inventive Principle:

Principle #7Nested doll (Nesting)

Solution Approach 2:

The shaft transitions from a static structure to a dynamic, adjustable structure that can change its configuration based on usage requirements. The telescopic sections can be extended or retracted as needed, and the locking mechanism secures the shaft in various positions, providing adaptability while keeping the base structure relatively simple.

Inventive Principle:

Principle #15Dynamics

3Adaptability or versatility

If the conduit is made flexible to accommodate length adjustments, then the conduit can maintain fluid flow across varying lengths, but the conduit may be damaged by repeated contact with locking mechanisms

Engineering Contradiction:

Improveconduit flexibility for length adjustmentVSAvoidconduit damage from locking mechanism contact

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The locking mechanism is designed to engage with the shaft structure rather than contact the flexible conduit directly. An intermediary component (such as a locking pin or cam) transfers the securing force to the shaft, allowing the conduit to remain flexible and adjust with shaft length changes without suffering damage from repeated locking and unlocking cycles.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The conduit is designed as a flexible tube that can bend and stretch to accommodate shaft length adjustments. By making the conduit inherently flexible and durable, it can withstand the mechanical stresses of extension and retraction without requiring direct contact with the locking mechanism, thereby preventing damage while maintaining adaptability.

Inventive Principle:

Principle #30Flexible shells and thin films

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 hose accessory provides a rigid and adjustable solution for directing water to inaccessible areas with a flexible conduit that remains functional across varying lengths, reducing the risk of damage from locking mechanisms and ensuring consistent fluid flow.

Implementation Method 1

The spring is positioned within the handle and is engaged with the locking pin to bias the locking pin towards the engaged position

Methodology Applied

Scientific EffectSpring: Spring

Data Source

PatentUS11666197B2Hose accessory

Publication Date: 2023.06.06 ROEMAR INC

AI summary

A hose accessory includes a handle, a shaft slidably received in the handle, and a flexible conduit located within handle and shaft. The flexible conduit may be arranged to carry fluids between a first end of the hose accessory and a second end of the hose accessory. A lock is provided to secure the shaft in a fixed position relative to the handle. The lock may include a locking pin biased towards a locked position. The shaft may include first and second channels. The first channel receives at least a portion of the locking pin when the locking pin is in a locked position. The conduit extends through the second channel that isolates and separates the conduit from the locking pin.