Rotary Pump Core Switching for Easier Inflation and Deflation
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Solution Overview
Problem
Existing pumps require reversing the inflating and deflating mechanism for bidirectional operation, making them inconvenient to use.
Innovation Solution
A rotary inflating and deflating pump design that allows inflation and deflation without changing the direction of the pump core, utilizing a housing with a chamber and a pump core that rotates clockwise or counterclockwise to switch between inlet and outlet communication with the housing hole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pump uses a bidirectional inflation and deflation structure requiring reversal of the inflating and deflating mechanism, then it can achieve both inflation and deflation functions, but it becomes inconvenient to use and complicates the operation process
Solution Approach 1:
Instead of reversing the pump core direction to switch between inflation and deflation modes, the patent inverts the approach by keeping the pump core rotation direction fixed and using two separate pump cores (first pump core for inflation, second pump core for deflation) that operate in opposite rotational directions simultaneously or alternately. This inversion of the control mechanism resolves the contradiction by maintaining operational convenience while achieving bidirectional functionality.
Solution Approach 2:
The patent divides the single pump core into two separate pump cores (first pump core and second pump core), each dedicated to a specific function (inflation or deflation). This segmentation allows each pump core to operate independently in its optimized rotation direction, eliminating the need to reverse a single pump core and thus improving ease of operation while maintaining bidirectional capability.
2Adaptability or versatility
If the pump requires taking out the pump core to change direction for deflation, then it can achieve deflation function, but it increases operation time and reduces efficiency
Solution Approach 1:
The patent segments the pump system into two independently rotatable pump cores within the same housing. The first pump core rotates in a first direction for inflation, while the second pump core rotates in a second (opposite) direction for deflation. This segmentation eliminates the need to remove and reorient a single pump core, allowing instant switching between functions and significantly improving operation efficiency.
Solution Approach 2:
The patent prepares both inflation and deflation pump cores in advance within the housing, each pre-configured for its specific rotation direction and function. This preliminary arrangement allows the user to simply change rotation direction without any mechanical reconfiguration or removal of components, thereby eliminating time loss and improving productivity.
3Device complexity
If the pump uses a single pump core that must be reversed for bidirectional operation, then it simplifies the structure, but it requires complex operation steps and reduces user convenience
Solution Approach 1:
While segmentation into two pump cores slightly increases structural complexity compared to a single pump core, it dramatically simplifies operation by eliminating the need to physically remove and reorient the pump core. The structural increase is minimal (adding one pump core and corresponding control mechanisms) while the operational simplification is significant, resolving the contradiction in favor of user convenience.
Solution Approach 2:
Instead of using a single reversible pump core that requires complex manual reorientation operations, the patent inverts the approach by using two fixed-direction pump cores controlled through simple rotation direction changes. This inversion transfers the complexity from operation to structure, but the structural complexity remains manageable while operational convenience is greatly enhanced.
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
Enables convenient operation by allowing inflation and deflation without direction changes, enhancing user experience and efficiency.
Implementation Method 1
When the pump core rotates clockwise in the housing under external force, one of the inlet hole and the outlet hole is communicated to the housing hole. When the pump core rotates counterclockwise in the pump housing under external force, the other of the inlet hole and the outlet hole is communicated to the housing hole.
Data Source
AI summary
A rotary inflating and deflating pump includes a housing and a pump core, the housing is provided with a chamber therein, the inner bottom wall of the chamber is provided with a housing hole; the pump core includes a pump shell and a driving member; the pump shell is detachably installed into the pump shell; a pump chamber is provided inside the pump shell, and an inlet hole and an outlet hole are provided on one end of the pump shell near the housing hole and respectively communicated with the pump chamber; the driving member is provided inside the pump chamber and used to drive gas to enter the pump chamber from the inlet hole and then flow out from the outlet hole; by rotating the pump core clockwise or counterclockwise, the pump can be changed to inflate or deflate, which is more convenient to use.