Rotatable Lamp Cup With Stretchable Body For PLV Installation
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Solution Overview
Problem
Existing powerless vertical (PLV) lamps are inflexible, as the lamp body is fixed and cannot be stretched or retracted, and the lamp cup is not rotatable relative to the lamp cap, requiring additional reflecting covers for horizontal installation.
Innovation Solution
A PLV lamp design featuring a rotatable lamp cup connected to a stretchable lamp body via a rotary part, allowing the lamp cup to rotate and the lamp body to stretch or retract, with a shaft connection to the lamp cap for adjustable installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lamp cup is fixed to the lamp body, then the structure is simple and stable, but the lamp cup cannot rotate to adapt to different installation orientations
Solution Approach 1:
The lamp cup is made rotatable relative to the lamp body through a rotary connection mechanism, transforming the fixed static connection into a dynamic adjustable connection. This allows the lamp cup to rotate to different orientations (horizontal, vertical, inclined) to adapt to various installation scenarios while maintaining structural simplicity through the use of a straightforward rotary joint design
2Adaptability or versatility
If the lamp body is fixed length, then the manufacturing is simple and cost is low, but the lighting position cannot be adjusted
Solution Approach 1:
The lamp body is designed with stretchable and retractable capability, transforming from a fixed-length rigid structure to a dynamic adjustable structure. The lamp body can extend or compress to different lengths, allowing the lighting position to be adjusted to match different spatial requirements while maintaining manufacturing simplicity through the use of telescopic or articulated segments
3Ease of operation
If the lamp body is fixed and cannot stretch, then the structure is stable and simple, but it cannot be flexibly positioned in different locations
Solution Approach 1:
The lamp body incorporates a telescopic mechanism that allows it to stretch and retract, providing positioning flexibility to reach different locations. The dynamic extension and retraction capability enables the lamp to be positioned flexibly in various locations while maintaining structural stability through the use of rigid telescopic segments and secure locking mechanisms
4Adaptability or versatility
If the lamp cup and lamp cap are fixedly matched, then the assembly is simple and reliable, but the lamp body cannot rotate relative to the lamp cap
Solution Approach 1:
The connection between the lamp body and lamp cap is made rotatable, transforming the fixed static matching into a dynamic adjustable connection. This allows the lamp body to rotate relative to the lamp cap to achieve different installation orientations (horizontal, vertical, inclined) while maintaining assembly simplicity through the use of a straightforward rotary joint or universal joint mechanism
Data Source
AI summary
A PLV lamp includes a lamp cup, a lamp body, and a lamp cap, wherein the lamp cup is rotationally connected with the lamp body, and the lamp body is stretchable and matched with the lamp cap. The rotatable connection between the lamp cup and the lamp body is realized through two movable shafts. The two movable shafts have a gap formed therebetween and are arranged at a bottom of the lamp cup. The lamp body is provided with a movable shaft base to be matched with the gap, and the two movable shafts are connected with the movable shaft base.