Modular Head-Side Module for Discharge Pump

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Solution Overview

Problem

Conventional discharge pumps require structural changes to vary the head part, including the mounting cap and nozzle head, which is inconvenient and involves disconnecting links between modules.

Innovation Solution

A modularized head part module for discharge pumps, comprising a mounting cap, cover ring, and push-down head, where the link cylinder is rotatably fitted into the second fitting strip, allowing the head part to be attached to the container body without disconnecting the link, with engagement strips preventing removal and enabling independent design of the head part.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the head part structure is changed to vary the form of mounting cap and nozzle head, then the adaptability is improved, but the device complexity increases and manufacturing becomes more difficult

Engineering Contradiction:

Improvehead part form variationVSAvoidstructure change

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The head part is segmented into a mounting cap and a push down head that can be independently designed and manufactured. The mounting cap includes a pump part with a pump cylinder and piston, while the push down head includes a nozzle and outer cylinder. These segments connect through a modular interface allowing independent variation of each part's form while maintaining the overall pump function.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mounting cap is designed as a universal component that can accommodate different push down head configurations. The standardized interface between the mounting cap and push down head allows the same mounting cap to work with various nozzle designs, enabling form variation without requiring changes to the pump mechanism itself.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If the whole structure from pump part to head part is changed to vary the head part form, then the adaptability is improved, but the ease of manufacture deteriorates

Engineering Contradiction:

Improvehead part design flexibilityVSAvoidmanufacturing process

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The pump assembly is divided into separately manufacturable segments: the mounting cap containing the pump mechanism and the push down head containing the nozzle. Each segment can be manufactured independently using optimized processes for that specific component, then assembled through the modular interface, simplifying the overall manufacturing process compared to producing the entire head part as a single integrated structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The mounting cap is prepared in advance with standardized connection features (such as the collar and flange structures) that enable easy attachment of different push down head variants. This preliminary preparation of the mounting cap allows for quick assembly of different head part configurations without requiring complex manufacturing changes.

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If the link is disconnected to attach the head part module to the pump part module, then the ease of operation is improved, but the loss of time increases

Engineering Contradiction:

Improveassembly operationVSAvoidassembly time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The mounting cap and push down head are merged into a single head part module that attaches to the pump part module as one unit. The modular interface combines multiple connection functions (mechanical attachment, alignment, and sealing) into a single assembly operation, eliminating the need to disconnect and reconnect separate links during assembly.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The head part module is pre-assembled with all necessary connection features and internal components configured before attachment to the pump part module. This preliminary configuration allows the entire head part to be attached in a single operation without requiring intermediate disconnection steps, reducing assembly time while maintaining ease of operation.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentEP2330049B1Head-side module of discharge pump for discharge container, and discharge pump comprising head-side module and pump-side module

Publication Date: 2017.11.15 YOSHINO KOGYOSHO CO LTD

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AI summary

To provide a head part module of a discharge pump for a discharge container, in which the head part of the pump mechanism can be readily varied. A head part module of a discharge pump comprises a mounting cap 4 having a link cylinder 10 upwardly extending via an inward flange 8 from an upper end of a mounting cylinder 6 ; a cover ring 16 having a top plate 18 with a through hole 20 in the middle part thereof, an outer wall 24 hanging from an outer circumference of the top plate 18, a first fitting strip 28 and a second fitting strip 30 circumferentially provided on the rear face of the top plate 18, a top part of the link cylinder 10 being loosely fitted into the second fitting strip 30; and a push down head 37 having an outer cylinder 40 hanging from an outer circumference of a top plate 38, a first communication tube 42 hanging from a rear face of the top plate 38 above the through hole 20 and a nozzle 44 forwardly projecting from the outer cylinder 40, the outer cylinder 40 being fitted onto an outer face of the outer wall 24.