Pump Hose Connector with Resilient Locking for Easy Coupling

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

The existing connectors for pumps are cumbersome and time-consuming to assemble or disassemble, often requiring excessive effort and lacking mechanisms to prevent accidental movement or ensure secure engagement during coupling.

Innovation Solution

A connector with a resilient portion featuring a connection mechanism that moves between closed and open positions, utilizing a stop pin to limit movement and ensure simultaneous action of protrusions, along with annular portions and lockers for secure engagement, and optionally manufactured via 3D printing for versatility.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional connector is used for coupling hoses with a pump, then the connection can be established, but the assembly and disassembly process becomes cumbersome and time-consuming requiring excessive effort

Engineering Contradiction:
Improveease of couplingVSAvoidassembly time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The connector is divided into two separate portions: a first connector portion that couples to the pump outlet and a second connector portion that couples to the hose. This segmentation allows each portion to be independently optimized and simplifies the overall coupling process by enabling modular assembly and disassembly operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The connection mechanism incorporates a resilient portion that can dynamically change between a closed position (for secure coupling) and an open position (for easy decoupling). This dynamic capability allows the connector to adapt its state based on operational requirements, making assembly quick and disassembly effortless without excessive force.

Inventive Principle:
Principle #15Dynamics

2Reliability

If a secure connection mechanism is implemented, then reliable engagement is achieved, but the structure becomes more complex requiring additional components

Engineering Contradiction:
Improveconnection securityVSAvoidconnector structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The connection mechanism merges multiple functions into a single integrated resilient portion that simultaneously provides locking, sealing, and positioning capabilities. The first and second protrusions work together with their corresponding recesses to achieve secure engagement without requiring separate locking mechanisms or multiple fastening components.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The resilient portion is designed to automatically engage and lock the first and second connector portions together through its own elastic deformation. The protrusions and recesses self-align and self-lock without requiring external actuators, adjustment mechanisms, or additional fastening operations, thereby achieving reliable connection with minimal structural complexity.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If the connector allows easy disassembly, then convenience is improved, but the connection security and stability may be compromised

Engineering Contradiction:
Improveease of disassemblyVSAvoidconnection stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The resilient portion provides dynamic stability by maintaining a closed locked position during normal operation through its elastic memory, ensuring connection stability. When disassembly is required, the same resilient portion can be easily opened by applying minimal force to the protrusions, allowing smooth transition between stable operation and easy disassembly states without compromising either requirement.

Inventive Principle:
Principle #15Dynamics

4Reliability

If the protrusions are designed to move simultaneously for secure locking, then engagement reliability is improved, but the mechanism requires additional components to coordinate movement

Engineering Contradiction:
Improveengagement reliabilityVSAvoidcoordination mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The resilient portion acts as an intermediary element that mechanically couples the first and second protrusions. When one protrusion moves, the resilient portion's elastic deformation automatically coordinates the movement of the other protrusion, ensuring simultaneous engagement with their corresponding recesses without requiring separate coordination mechanisms or additional control components.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 efficient and convenient coupling and uncoupling of hoses with the pump, reducing assembly and disassembly efforts, even with stiff hoses or torsion forces, while ensuring a secure and water-tight connection.

Implementation Method 1

The resilient portion of the connection mechanism is movable between a closed position and an open position based on actuation of the resilient portion of the connection mechanism

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4115108B1Connector for a pump
Publication Date: 2024.03.27 HUSQVARNA AB
  • EP4115108B1 patent drawingFigure 1
  • EP4115108B1 patent drawingFigure 2
  • EP4115108B1 patent drawingFigure 3

AI summary

A connector (210) for a pump (100) includes a first connector portion (214) and a second connector portion (216). A first end (222) of the second connector portion (216) is coupled to a second end (220) of the first connector portion (214). A connection mechanism couples the second end (220) of the first connector portion (214) and the first end (222) of the second connector portion (216). The connector (210) is characterized in that the connection mechanism is movable between a closed position and an open position based on actuation of a resilient portion (226). Further, the second connector portion (216) remains coupled with the first connector portion (214) in the closed position of the connection mechanism. The second connector portion (216) can be uncoupled with the first connector portion (214) in the open position of the connection mechanism. A stop pin (237) is located on the resilient portion (226).