Mop Head Concave Connector for Clean, Damage-Free Pad Assembly
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Solution Overview
Problem
Flat mop heads with through holes accumulate dust and hair, leading to aesthetic issues and potential debris detachment during cleaning, while concave connecting portions without upper openings face difficulties in firmly securing cleaning members due to risk of damaging the friction structure during assembly.
Innovation Solution
A mop head frame with concave connecting portions featuring a bottom opening and a closed roof, incorporating a narrow connecting portion with specific protruding and hollow elements that allow for secure attachment of cleaning members using an I-shaped punch without damaging the structure, enabling easy assembly and disassembly with reduced force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a through hole connecting portion with top and bottom openings is used, then the cleaning member can be easily assembled, but dust and hair accumulate in the gap causing aesthetic issues and potential debris detachment
Solution Approach 1:
The invention extracts the harmful feature by eliminating the top opening from the connecting portion. The new design features a closed roof portion that seals the top, preventing dust and hair from entering the connecting portion while maintaining the bottom opening for assembly purposes.
Solution Approach 2:
Instead of having both top and bottom openings as in conventional designs, the invention inverts the structure by closing the top opening while maintaining the bottom opening, thereby preventing contamination while preserving assembly functionality.
2Object-affected harmful factors
If a concave connecting portion with only bottom opening and closed roof is used, then dust accumulation is prevented, but the cleaning member cannot be firmly stuck due to difficulty in assembling without damaging the friction structure
Solution Approach 1:
The connecting portion is segmented into distinct functional zones: a closed roof portion for preventing dust entry, a side wall with narrow connecting portion for secure attachment, and strategically placed protruding elements that create friction zones. This segmentation allows each part to fulfill its specific function without compromising overall performance.
Solution Approach 2:
The invention applies local quality by creating specific friction zones through protruding elements at critical locations within the narrow connecting portion. These localized friction-enhancing features ensure firm attachment of the cleaning member without requiring damage to the overall friction structure, while the closed roof maintains dust prevention.
3Ease of manufacture
If conventional punch assembly method is used on closed roof concave connecting portion, then assembly is attempted, but the punch destroys the middle friction part structure when pulled back
Solution Approach 1:
The invention prepares the assembly path in advance by designing the narrow connecting portion with hollow spaces and strategically positioned protruding elements. This preliminary structural preparation allows the punch to pass through without destroying the friction parts, as the hollow spaces provide clearance and the protruding elements guide the punch along a safe path.
Solution Approach 2:
The hollow spaces within the narrow connecting portion act as intermediaries that accommodate the punch during assembly. These hollow spaces provide a clearance path that allows the punch to pass through and be pulled back without contacting or damaging the friction-enhancing protruding elements.
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 ensures a firm connection of cleaning members to the mop head frame while preventing damage to the connecting portion, maintaining cleanliness and aesthetics by minimizing dust and hair accumulation, and facilitating easy assembly and disassembly with reduced force requirements.
Implementation Method 1
a mop head frame, which is formed by injection molding through a mold, the mold has a plurality of protruding portion by which a plurality of concave connecting portions are formed
Implementation Method 2
an I-shaped punch presses the punch-in portion to enable the I-shaped punch with the width and thickness to pass through the first hollow portion and the second hollow portion such that the punch-in portion and the squeeze-in portion are squeezed into the concave accommodating portion
Implementation Method 3
the first set of protruding elements, the first hollow portion, the second set of protruding elements and the second hollow portion surround the side wall thereby enabling the first set of protruding elements and the second set of protruding elements, which are formed by injection molding to extend from the side wall
Data Source
AI summary
The present invention provides a mop head comprising: a mop head frame formed with a plurality of concave connecting portion, a narrow connecting portion of each concave connecting portion includes a first set of protruding elements, a first hollow portion, a second set of protruding elements and a second hollow portion; and a cleaning member. The first set of protruding elements and second set of protruding elements of the narrow connecting portion clamp the cleaning member. The first hollow portion and the second hollow portion provide space that allows the cleaning member be firmly punched in concave connecting portion without damaging the narrow connecting portion by a punch.