Rotary Mop Handle Structure With Spiral-Groove Drive for Reduced Wear
Solution Overview
Problem
Conventional rotary mops suffer from structural complexity, high maintenance costs, and labor-intensive operation due to friction and part wear, as well as inefficiencies in spin-drying caused by sliding between the mop rod and turntable.
Innovation Solution
A rotary mop structure featuring a spiral-grooved rotary cylinder with a unidirectional bearing and bulges, a lubricated bottom plate, and a buffering device, allowing smooth rotation and reduced friction, combined with a turntable and elastic parts for secure and sliding-free spin-drying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a rotary head and spiral transmission shaft with matched ratchets are used to realize rotation, then the rotary mop can achieve automatic cleaning and spin-drying function, but the sliding faces of two transmission teeth abut against each other generating friction force causing the rotary head to abrade easily and the transmission shaft to break after long term use
Solution Approach 1:
The patent extracts and eliminates the complex ratchet mechanism from the system. Instead of using a rotary head with spiral transmission shaft and matched ratchets, the invention uses a simple lifting rod that directly drives the mop head through a unidirectional bearing, removing the sources of friction and wear while maintaining the automatic rotation function.
Solution Approach 2:
The patent replaces the complex mechanical ratchet system with a unidirectional bearing mechanism. The unidirectional bearing allows rotation in one direction while preventing reverse rotation, achieving the same functional effect as the ratchet system but without the sliding friction and wear problems of meshed teeth.
2Extent of automation
If a rotary head and spiral transmission shaft with matched ratchets are used, then rotation can be realized, but the rotary device has more parts making mounting troublesome and increasing resistance during pressing down
Solution Approach 1:
The patent removes the unnecessary rotary head, spiral transmission shaft, and ratchet components, retaining only the essential lifting rod and unidirectional bearing. This extraction of extraneous parts simplifies the structure to its core functional elements, making mounting easier and reducing operational resistance.
Solution Approach 2:
Instead of using a complex rotary mechanism that converts linear motion to rotational motion through multiple components, the invention inverts the approach by using a unidirectional bearing that naturally converts the linear pressing motion into rotational motion of the mop head in a single straightforward mechanism.
3Productivity
If the mop head is designed to rotate relatively with centrifugal water spinning function, then water spin-drying can be achieved, but sliding between the mop rod and turntable occurs preventing the mop cloth from rotating along with the mop rod
Solution Approach 1:
The patent merges the rotation of the mop rod and the turntable into a single unified rotation. By using the unidirectional bearing to drive the entire assembly, the mop cloth, turntable, and mop rod all rotate together as one synchronized unit, eliminating the sliding problem while maintaining the centrifugal water spinning function.
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 simplifies the structure, reduces production costs, extends service life, and enhances operational ease and spin-drying efficiency by minimizing friction and ensuring synchronized rotation of the mop head.
Implementation Method 1
a rotary cylinder 1 of which the inner wall is provided with spiral grooves 111 and a lifting rod 2 penetrating through the rotary cylinder 1, wherein the lower end of the lifting rod 2 is fixedly provided with a unidirectional bearing 3 which rotates unidirectionally; bulges 32 matched with the spiral grooves are apart arranged outside the unidirectional bearing 3
Implementation Method 2
lubricant or lubricating grease is provided in the rotary cylinder 1
Implementation Method 3
the buffering device is a spring, one end of the spring abuts against the lower side of the handle and the other end of the spring abuts against the fixing part
Implementation Method 4
an elastic part is arranged between the turntable limiting part and the turntable bottom buckle, and the elastic part enables the connecting pieces I and the connecting pieces II to tend to separate
Data Source
AI summary
Described herein is a rotary mop and a rotary structure of a mop handle of the rotary mop. The rotary structure comprises a rotary cylinder of which the inner wall is provided with spiral grooves and a lifting rod penetrating through the rotary cylinder, wherein the lifting rod is provided with a unidirectional rotary one-way bearing, bulges matched with the spiral grooves are apart arranged outside the one-way bearing, when the lifting rod is pressed downwards, the one-way bearing stops rotation, and the bulges and the spiral grooves are mutually matched to drive the rotary cylinder to rotate; and when the lifting rod is pulled upwards, the one-way bearing idly rotates along the spiral grooves. The bottom of the rotary cylinder is provided with a bottom plate for sealing the rotary cylinder, and lubricating oil or lubricating grease is provided in the rotary cylinder.