Pump Gasket Part Segmentation for Maintenance Access

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Solution Overview

Problem

The existing methods for changing mechanical gaskets in pumps are time-consuming and expensive due to the need for disassembling the pump and detaching the power unit, which complicates the process and increases maintenance costs.

Innovation Solution

A pump design featuring a drive shaft with multiple parts and a detachable gasket part that allows for easy replacement of the mechanical gasket without disassembling the pump body, using a compactable detachable part with a flexible additional gasket and latching mechanism for secure sealing and easy access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of repair

If the pump is disassembled and the power unit is detached to change the gasket, then the gasket can be replaced, but the maintenance time and cost increase

Engineering Contradiction:
Improvegasket replacementVSAvoidmaintenance time
Core Design Contradiction:
Ease of repairVSLoss of time

Solution Approach 1:

The drive shaft is divided into multiple parts with the gasket part being detachable from the other parts. This segmentation allows the gasket part to be removed independently without disassembling the entire pump or detaching the power unit, thus reducing maintenance time while enabling easy gasket replacement

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The gasket part is extracted as a separate detachable component from the drive shaft assembly. This extraction allows the gasket part to be removed and replaced independently, eliminating the need for complete pump disassembly and power unit detachment, thereby significantly reducing maintenance time and cost

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of repair

If the pump is disassembled and the power unit is detached to change the gasket, then the gasket can be replaced, but the maintenance cost increases

Engineering Contradiction:
Improvegasket replacementVSAvoidmaintenance cost
Core Design Contradiction:
Ease of repairVSEase of manufacture

Solution Approach 1:

The drive shaft is divided into multiple parts with the gasket part being detachable from the other parts. This segmentation allows the gasket part to be removed independently without disassembling the entire pump or detaching the power unit, thus reducing maintenance time while enabling easy gasket replacement

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The gasket part is extracted as a separate detachable component from the drive shaft assembly. This extraction allows the gasket part to be removed and replaced independently, eliminating the need for complete pump disassembly and power unit detachment, thereby significantly reducing maintenance time and cost

Inventive Principle:
Principle #2Taking out (Extraction)

3Device complexity

If the drive shaft is made as a single piece, then the structure is simple, but the gasket cannot be replaced easily

Engineering Contradiction:
Improvedrive shaft structureVSAvoidgasket replacement
Core Design Contradiction:
Device complexityVSEase of repair

Solution Approach 1:

The drive shaft is divided into multiple parts with the gasket part being detachable from the other parts. This segmentation allows the gasket part to be removed independently without disassembling the entire pump or detaching the power unit, thus reducing maintenance time while enabling easy gasket replacement

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The drive shaft transitions from a static single-piece structure to a dynamic multi-part structure where the gasket part can be detached and reattached. This dynamic design enables easy gasket replacement while maintaining operational integrity, balancing structural simplicity with repairability

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP1931878B1Pump with a gasket part
Publication Date: 2020.07.22 FLOWROX
  • EP1931878B1 patent drawingFigure 1
  • EP1931878B1 patent drawingFigure 2

AI summary

The invention relates to a gasket part for a pump to be used in conjunction with a bearing part (1) of the pump, through which there is arranged a drive shaft (2). According to the invention, the gasket part includes a mechanical gasket (7) and a detachable part (4) of the drive shaft, which detachable part is arranged substantially in conjunction with the bearing part (1) and can be detachably connected between the other parts (3, 5) of the drive shaft; the gasket (7) is arranged in conjunction with the detachable part (4) of the drive shaft; and the detachable part (4) of the drive shaft includes means (8) for arranging it so as to be compacted in the longitudinal direction. Moreover, the invention concerns a method for detaching the gasket part and use of the gasket part.