Handheld Cleaner Pump Mechanism With Rolling-Friction Reciprocation
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Solution Overview
Problem
Conventional hand-held cleaning devices suffer from low transmission efficiency due to large eccentric forces causing sliding friction in the pump body, resulting in low working efficiency and high power loss.
Innovation Solution
A hand-held cleaning device with a reciprocating mechanism that converts axial rotation of a reciprocating shaft into a reciprocating movement of a sleeve through a guiding assembly, utilizing rolling friction instead of sliding friction, thereby reducing deflection forces and improving transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If an eccentric mechanism drives a single plunger to reciprocate in the pump body, then the cleaning device can spray water at high pressure, but the transmission efficiency is low and power loss is large
Solution Approach 1:
The invention divides the single plunger into multiple plungers (first plunger and second plunger) that work in parallel within the pump body. This segmentation allows the system to distribute the pumping workload across multiple elements, reducing the eccentric force on each individual plunger and minimizing sliding friction in the pump body, thereby reducing power loss while maintaining water spray pressure.
Solution Approach 2:
The invention employs multiple plungers performing partial pumping actions simultaneously. Each plunger contributes a portion of the total pumping function, and their combined effect achieves the required water pressure while reducing the mechanical stress and friction on each component, improving overall transmission efficiency.
2Power
If an eccentric mechanism drives a single plunger to reciprocate in the pump body, then water can be discharged at high pressure, but the transmission efficiency is low
Solution Approach 1:
The single plunger is segmented into multiple plungers that reciprocate simultaneously. This segmentation distributes the pumping action across multiple elements, reducing the eccentric force and sliding friction on each plunger, thereby improving transmission efficiency while maintaining water discharge pressure.
Solution Approach 2:
The invention merges the pumping functions of multiple plungers into a single pump body system. The combined action of multiple plungers working in parallel achieves the required water discharge pressure while reducing the mechanical losses associated with a single high-load plunger, thus improving transmission efficiency.
3Ease of operation
If an eccentric mechanism is used to drive the plunger, then reciprocating motion can be generated, but the overall working efficiency is low
Solution Approach 1:
The eccentric mechanism is modified to drive multiple plungers simultaneously instead of a single plunger. This segmentation of the driven elements reduces the eccentric force on each plunger, minimizing sliding friction and improving the overall working efficiency while maintaining the reciprocating motion generation capability.
Solution Approach 2:
Multiple plungers perform partial pumping actions that collectively achieve the required water discharge. Each plunger operates with reduced eccentric force, and their combined partial actions result in improved overall working efficiency while maintaining the necessary reciprocating motion.
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 water pressure and flow rate while reducing power loss, leading to improved cleaning efficiency and user experience.
Implementation Method 1
a sliding friction in the conventional eccentric mechanism is changed into a rolling friction of the first guiding assembly
Data Source
AI summary
A handheld cleaning machine, comprising: a housing, a reciprocating mechanism, a driving assembly, and a water pump assembly. The reciprocating mechanism comprises a reciprocating shaft, a sleeve, and a first guide assembly. The driving assembly is configured to drive the reciprocating shaft to rotate, so that the sleeve reciprocates in the length direction of the reciprocating shaft; the water pump assembly comprises a water inlet member, a pump body, and a water outlet member, the pump body is connected to the sleeve, the pump body is communicated between the water inlet member and the water outlet member, and when the pump body moves along the axis of the reciprocating shaft, the pump body is configured to feed water from the water inlet member and discharge water from the water outlet member.