Diaphragm Pump Valve Housing Structure for Wobble-Free Sealing
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Solution Overview
Problem
Conventional pumps experience efficiency reduction and maintenance issues due to valve housing wobbling and valve instability at high pressures and viscosities, leading to unnecessary wear on o-rings and potential valve failure.
Innovation Solution
A brush ring assembly with a coiled spring body, bent end portions, and a brush holder is used to secure the brush spring, which presses the brush against the commutator, ensuring a stable connection and reducing wear, while the raised outer walls of the valve housing prevent wobbling and secure the o-ring, minimizing wear and failure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional press-fitted valves and valve housing are used, then the pump structure is simple, but at high pressures and viscosities the valves balloon, spin, or pop out and the valve housing wobbles, greatly reducing pump efficiency and requiring maintenance
Solution Approach 1:
The valve housing is divided into a stationary valve housing and a movable valve housing, with the movable portion allowing controlled movement to accommodate pressure changes while the stationary portion provides stable mounting for valves. This segmentation resolves the contradiction by enabling the valve housing to deform elastically under pressure without wobbling or causing valve failure.
Solution Approach 2:
The valve housing is designed with elastic properties that allow it to change its physical state under pressure. The housing transitions from a rigid fixed state to a controlled elastic deformation state, accommodating high pressures and viscosities without compromising valve stability or requiring complex reinforcement structures.
2Stability of the object's composition
If conventional baseplate with small base and legs is used, then the motor mounting is simple, but the pump and motor assembly becomes unstable at high pressures
Solution Approach 1:
The baseplate is merged with the pump housing to form an integrated assembly. The pump housing itself serves as the base, eliminating the need for separate legs and mounting structures. This integration provides inherent stability at high pressures while maintaining structural simplicity.
Solution Approach 2:
The pump housing serves multiple functions: it encloses the pump mechanism, provides structural support, and acts as the baseplate for mounting. This multi-functionality achieves stability without requiring additional specialized components.
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
The solution enhances pump efficiency by preventing valve housing wobbling and valve instability, reducing wear on o-rings and extending the life of pump components, thus requiring less maintenance.
Implementation Method 1
a brush spring including a coiled spring body, a first end portion and a second end portion
Implementation Method 2
The first end portion is bent across at least a portion of the coiled spring body in a direction toward the second end portion
Data Source
AI summary
A brush ring assembly including a brush ring, a brush holder coupled to the brush ring, and a brush spring. The brush spring includes a coiled spring body, a first end portion and a second end portion. The first end portion and the second end portion are disposed on opposing ends of the spring body. The first end portion, the second end portion, and the coiled spring body are coupled to the brush holder. The first end portion is bent across at least a portion of the coiled spring body in a direction toward the second end portion.