Elevation-Adjustable Window Candle With Stepped Insertion Hole
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional LED lamp type window candles lack elevation adjustment capability, leading to limited application, complex assembly processes, and increased manufacturing costs due to intricate structures and wear-prone components.
Innovation Solution
An elevation-adjustable window candle design featuring a holder base with stepped vertical insertion holes and annular locating grooves, allowing the candle shaft to be positioned at different elevations using an annular locating member, which simplifies assembly and reduces manufacturing complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If springy retaining blocks are used to secure the candle shaft to the candlestick, then the candle shaft can be positioned at different elevations, but the retaining blocks wear quickly resulting in positioning instability and shortened lifespan
Solution Approach 1:
The patent replaces the mechanical springy retaining block system with a friction-based fixation system. The candle shaft surface is treated to provide friction resistance against the inner wall of the candlestick, eliminating the need for metal retaining blocks that wear down. This substitution maintains elevation adjustability while significantly improving long-term reliability and positioning stability.
Solution Approach 2:
The patent changes the surface parameters of the candle shaft by applying a treatment that increases surface friction. This parameter change allows the shaft to maintain secure positioning at various elevations without mechanical retainers, solving the wear and stability problem while preserving adaptability.
2Manufacturing precision
If the candle shaft and candlestick have complicated structures to enable elevation adjustment, then positioning accuracy can be improved, but the manufacturing cost increases
Solution Approach 1:
The patent extracts the complex mechanical positioning mechanisms (retaining blocks, grooves, flanges) and replaces them with a simple friction-based system. The candle shaft and candlestick become relatively simple cylindrical components, with the positioning function achieved through surface treatment rather than complex geometry, thereby reducing manufacturing cost while maintaining positioning accuracy.
Solution Approach 2:
Instead of using complex mechanical structures to achieve positioning, the patent inverts the approach by using a simple structure with enhanced surface properties. The frictional interaction between the treated shaft surface and the candlestick inner wall provides the necessary positioning accuracy without complicating the basic cylindrical forms.
3Measurement precision
If accurate alignment between candle shaft and candlestick is maintained, then accurate adjustment can be achieved, but the assembly procedure becomes complicated and time-consuming
Solution Approach 1:
The friction-based system allows the candle shaft to be inserted and positioned freely within the candlestick without requiring precise pre-alignment. The shaft self-adjusts to the correct position through frictional contact with the inner wall, eliminating the need for complex alignment procedures and significantly reducing assembly time while maintaining adjustment accuracy.
Data Source
AI summary
A window candle includes a holder base defining therein a stepped vertical insertion hole formed of a larger upper first insertion hole and a smaller lower second insertion hole and defining a first annular locating groove between the larger upper first insertion hole and the smaller lower second insertion hole and a second annular locating groove located at the bottom side of the smaller lower section insertion hole, a candle shaft inserted into the stepped vertical insertion hole and selectively positioned in the first annular locating groove or the second annular locating groove, an annular locating member optionally mountable in the first annular locating groove to support the candle shaft in the first annular locating groove, and a lampshell fastened to the top end of the candle shaft by a screw joint and holding therein a light-emitting circuit board.