Dual-Purpose Inflator Pump With Rotating Casing and Side Trigger

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Solution Overview

Problem

Dual-purpose inflator pumps are inconvenient for users to operate with one hand due to the placement of the power supply switch at the top of the pump body, making it difficult to use either alone or in combination with a casing.

Innovation Solution

The dual-purpose inflator pump incorporates a locking mechanism at the top with a trigger on the sidewall for one-handed operation, a rotatable connection with the casing, and a valve train for efficient airflow management, including a stand-alone slide switch and a pressing block to facilitate easy assembly and operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the power supply switch is provided at the top of the pump body, then the pump body can be used in combination with the casing, but the users cannot operate the pump body conveniently with one hand

Engineering Contradiction:
Improvedual-purpose usageVSAvoidone-handed operation
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The switch mechanism is segmented into two operational modes: a top-mounted power supply switch for combined usage and a sidewall trigger for standalone one-handed operation. This segmentation allows each mode to have its own control interface, resolving the contradiction between adaptability and ease of operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The pump body is designed with dynamic positioning capability, allowing it to be rotated within the casing to different angles. This dynamic adjustment enables the trigger to be positioned at locations accessible to users' fingers when holding the pump body, facilitating one-handed operation while maintaining dual-purpose functionality.

Inventive Principle:
Principle #15Dynamics

2Volume of moving object

If the pump body is wrapped by the casing when used in combination, then the structure is compact, but the switch at the top end is not accessible for one-handed operation

Engineering Contradiction:
Improvecompact structureVSAvoidswitch accessibility
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The control interface is segmented into two locations: the top-mounted power supply switch for combined usage mode and the sidewall trigger for standalone operation mode. This segmentation ensures that the compact casing structure does not prevent access to the appropriate control interface for each usage scenario.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The trigger is positioned on the sidewall of the pump body, utilizing the lateral dimension rather than relying solely on the top surface. This dimensional change allows the trigger to be accessible from the side when users hold the pump body, solving the accessibility issue while maintaining compact structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Ease of operation

If the pump body is rotatably connected to the casing, then the trigger can be positioned for one-handed operation, but the locking mechanism must be reliable to maintain connection

Engineering Contradiction:
Improveone-handed operationVSAvoidconnection stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The locking mechanism is designed to automatically engage when the pump body is inserted into the casing, performing the locking action in advance before use. This preliminary action ensures reliable connection stability without requiring additional manual操作步骤, maintaining both ease of operation and connection reliability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The locking mechanism is designed to self-lock automatically when the pump body is inserted into the casing. The structure utilizes the insertion motion itself to trigger the locking action, eliminating the need for separate manual locking steps and ensuring reliable connection while maintaining ease of operation.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12148581B1Dual-purpose inflator pump
Publication Date: 2024.11.19 DONGGUAN HONGYU PLASTIC CO LTD
  • US12148581B1 patent drawing
  • US12148581B1 patent drawing
  • US12148581B1 patent drawing

AI summary

The present application discloses a dual-purpose inflator pump, including a pump body and a casing, a locking mechanism is provided at the top of the pump body, and the sidewall of the pump body is provided with a trigger configured for controlling the pump body to operate by pressing. The casing is defined with an accommodation chamber for accommodating the pump body, and the accommodation chamber has a top opening; a clamping groove for clamping the locking mechanism is defined on the inner side of the top of the casing; and when the pump body is accommodated in the accommodation chamber, the pump body is rotatably connected to the casing, and the inner side of the casing is fixedly provided with a pressing block for pressing the trigger.