Adjustable Lamp Lens Mechanism Without Accessory Rotation
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Solution Overview
Problem
Existing lamps with adjustable beam angles risk damage and falling of accessories due to synchronous rotation with the base, causing collisions and potential damage.
Innovation Solution
A lamp design where the movable base with the lens moves linearly relative to the lamp body, preventing accessories from rotating during beam angle adjustment, using a sliding groove mechanism and a safety rope system to secure the light shield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the lens is mounted on a base that rotates to change beam angle, then the beam angle is adjustable, but the accessories mounted on the base rotate synchronously and may collide with nearby objects causing damage or falling
Solution Approach 1:
The patent divides the adjustment mechanism into two independent parts: the base that holds accessories remains stationary, while a separate movable platform carries the lens and rotates independently. This segmentation prevents accessories from rotating during beam angle adjustment, resolving the contradiction between adjustability and accessory stability.
Solution Approach 2:
The patent introduces a movable platform as an intermediary component between the stationary base and the rotating lens assembly. This intermediary allows the lens to rotate for beam angle adjustment while the base and its accessories remain fixed, eliminating the harmful synchronous rotation effect.
2Ease of operation
If the base rotates to adjust beam angle, then the lighting direction is changeable, but the light shield or accessories may fall or be damaged due to collision
Solution Approach 1:
By separating the rotation function from the base structure, the patent allows lighting direction control through independent rotation of the lens platform while keeping the base and accessories stationary, thus eliminating collision risks.
Solution Approach 2:
The patent preemptively prevents the harmful rotation of accessories by designing a structure where the base does not rotate at all during beam angle adjustment. The stationary base with securely mounted accessories is protected from collision before any adjustment operation occurs.
3Device complexity
If accessories are mounted on the rotating base, then the lamp structure is compact, but the accessories are subject to rotation and potential damage
Solution Approach 1:
The patent segments the device into a stationary base for mounting accessories and a separate movable rotating platform for the lens. This maintains structural compactness while ensuring accessory safety by preventing their exposure to rotational forces.
Solution Approach 2:
Instead of mounting the lens directly on the rotating base, the patent inverts the arrangement by mounting accessories on the stationary base and the lens on a separate movable platform. This inversion protects accessories from rotation while maintaining functional integration.
Data Source
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AI summary
A lamp includes a lamp body, a light source, a lens, a movable base, and an adjustment ring. The light source is fixed in the lamp body. The movable base is movably connected to the lamp body and movable along an axial direction of the lens. The lamp body hinders a rotation of the movable base relative to the lamp body. The lens is fixed to the movable base. The adjustment ring is rotatable about the movable base and movable along the axial direction of the lens in synchronization with the movable base. At least one of the adjustment ring and the lamp body includes a sliding block, and the other includes a first sliding groove. When the adjustment ring is rotated relative to the movable base, the adjustment ring moves in synchronization with the movable base to change a distance between the lens and the light source.