Pump Level Adjustment Mechanism with Segmented Protrusions
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Solution Overview
Problem
Conventional submersible pumps face challenges in providing a user-friendly and efficient mechanism for level adjustment, leading to high wear and tear, frequent service replacements, and downtime due to complex and cumbersome arrangements.
Innovation Solution
A mechanism featuring a pump body with protrusions and a movable basket that can be adjusted between extended and retracted positions using a switch bar and trigger, allowing for simple and efficient level adjustment, suitable for different fluid applications like clean and dirty water modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rotatable locking element is used to adjust the level of the submersible pump, then the pump can be adjusted between different positions, but the arrangement becomes complex and cumbersome with high wear and tear
Solution Approach 1:
The adjustment mechanism is segmented into discrete protrusions positioned at specific levels, with the movable basket having corresponding engagement features. This segmentation allows the basket to be locked at predetermined positions without requiring a continuous adjustment mechanism, thereby simplifying the overall device complexity while maintaining adaptability for different pump levels.
Solution Approach 2:
The mechanism uses simple, replaceable protrusions and engagement features instead of a complex rotatable locking element. These components are designed to be straightforward mechanical elements that can be easily manufactured and replaced if needed, reducing both the initial complexity and long-term maintenance burden.
2Adaptability or versatility
If a rotatable locking element is used for level adjustment, then the pump can change positions, but the mechanism suffers from high wear and tear and frequent service replacement
Solution Approach 1:
By dividing the adjustment function into discrete protrusions at specific levels rather than a continuous rotatable mechanism, each protrusion becomes a simple, low-stress component. This segmentation eliminates the rotational wear inherent in traditional locking elements, significantly improving reliability and reducing the frequency of service replacements.
Solution Approach 2:
Instead of using a locking element that rotates to engage different positions, the invention inverts the approach by having fixed protrusions that passively engage with the movable basket at predetermined locations. This inversion eliminates the active rotational motion that causes wear, transforming the mechanism into a passive, wear-free system.
3Adaptability or versatility
If a complex multi-part arrangement is used for level adjustment, then the pump can be adjusted to different levels, but the operation becomes cumbersome and not user-friendly
Solution Approach 1:
The segmentation of the adjustment mechanism into discrete, clearly positioned protrusions makes the available levels visually and physically distinct. Users can easily identify and select the desired pump level without navigating through a complex continuous adjustment, thereby improving ease of operation while maintaining adaptability.
Solution Approach 2:
The protrusions are pre-positioned at the desired pump levels during manufacturing, eliminating the need for users to perform complex adjustment procedures. Users simply need to move the basket to the nearest protrusion, which automatically engages to lock the position, making the operation intuitive and user-friendly.
Data Source
Figure 1
Figure 2
Figure 3A~3B
AI summary
A mechanism (150) for a pump (100) which includes a pump body (120) having protrusions (122). The mechanism (150) includes a movable basket (130) movable between a first position and a second position. The one or more protrusions (122) bias the movable basket (130) in one of the first position and the second position. The mechanism (150) includes a switch bar (140) which allows selective locking of the protrusions (122). The switch bar (140) moves between a locking position (P1) and an unlocking position (P2). The mechanism (150) is characterized in that the actuation of a trigger (160) moves the switch bar (140) between the locking position (P1) and the unlocking position (P2). And, in the unlocking position (P2) of the switch bar (140), the protrusions (122) is unloaded such that the movable basket (130) is movable between the first position and the second position.