Submerged Pump Cable Protection with Quick-Fix Bayonet Triggers

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Solution Overview

Problem

Existing electrical cable protection systems for submerged pumps are cumbersome and time-consuming to assemble, particularly for handheld pumps that require rapid installation and use under emergency conditions, and they do not meet the requirements for reliability and ease of use.

Innovation Solution

The use of quick fixing devices with resilient tails and bayonet sliding triggers that allow for easy assembly and disassembly of electrical cable protection means by simple radial pressure, which are securely attached to the pump's cylindrical lateral wall, enabling rapid and stable blocking and releasing of the protection means.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If screw-type connection means are used to attach cable protection means to the pump body, then the connection is secure and reliable, but the assembly and disassembly process becomes slow and difficult

Engineering Contradiction:
Improveconnection reliabilityVSAvoidassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent replaces static screw connections with dynamic quick-fixing devices that can be rapidly engaged and disengaged. The resilient tail mechanism allows the protection means to be securely attached during operation while enabling fast removal when needed, thus resolving the contradiction between connection reliability and assembly speed.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The invention extracts the complex screw connection mechanism and replaces it with a simplified quick-fixing system. By removing the time-consuming screw assembly process while maintaining secure attachment through the resilient tail engagement, the patent achieves both reliability and speed.

Inventive Principle:
Principle #2Taking out (Extraction)

2Reliability

If screw-type connection means are used to attach cable protection means to the pump body, then the connection is secure, but the operation becomes complex and difficult

Engineering Contradiction:
Improveconnection stabilityVSAvoidassembly ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The quick-fixing devices with resilient tails automatically engage with the pump body without requiring manual screw tightening. The resilient nature of the tails provides self-adjusting secure attachment, making the operation simple and intuitive while maintaining reliable connection.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The dynamic resilient tail mechanism adapts to the pump body surface, providing secure connection through elastic deformation rather than rigid screw fastening. This makes the operation easier while maintaining connection stability.

Inventive Principle:
Principle #15Dynamics

3Productivity

If handheld submerged pumps are designed for rapid installation and use under emergency conditions, then the response time is reduced, but the cable protection system must be simplified from complex screw-type connections

Engineering Contradiction:
Improveinstallation speedVSAvoidcable protection system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The cable protection system is segmented into modular components: the protection means and the quick-fixing devices with resilient tails. This segmentation allows for simple, rapid attachment and detachment, significantly improving installation speed while reducing overall system complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The dynamic quick-fixing mechanism enables rapid deployment of the cable protection system, allowing handheld pumps to be quickly installed and used under emergency conditions without complex assembly procedures.

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

This solution significantly reduces assembly time, enhances reliability, and provides a cost-effective, versatile cable protection system that is easy to use, making it suitable for emergency conditions and movable submerged pumps.

Implementation Method 1

receptacles conformed with resilient tails which engage in notches obtained along the protection means

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2419642B1Submerged pump with protected electrical cables
Publication Date: 2016.07.27 PEDROLLO SPA
  • EP2419642B1 patent drawingFigure 1~3
  • EP2419642B1 patent drawingFigure 4~9

AI summary

The present invention concerns a submerged pump (1) with electrical cables external of the cylindrical lateral wall (20) wherein the protection means (2), conformed for the lodging of said cables, are predisposed to be restrained to the pump (1) body by means of quick fixing devices (4) associable to bayonet sliding triggers (5) for quick and stable blocking and releasing, between said means of protection (2) and the lateral wall (20) of the pump (1), with possibly interposed fixed lantern elements (6) and a resilient protection band (12) as suction filter.