Lens Mount Replacement With Button-Actuated Ejector Pin
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Solution Overview
Problem
Conventional lens mount replacement methods require tools for disassembly and reassembly, are time-consuming, and risk misalignment due to uneven screw tightening, leading to potential shooting effect compromises.
Innovation Solution
A lens mount replacement device with a base, ejector pin, button, and rotating rings that allow tool-free, rapid disassembly and installation of lens mounts through a notch and slot system, utilizing a button-actuated ejector pin and threaded connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional screw-based mount fixing method is used, then the mount can be securely locked on the lens, but the disassembly process requires tools and is time-consuming
Solution Approach 1:
The mount fixing mechanism is divided into multiple functional components: a rotating ring for mounting/dismounting operation, an ejector pin for automatic screw release, and a button-actuated release mechanism. This segmentation allows the complex screw-locking function to be separated into manageable parts that work together to enable tool-free operation.
Solution Approach 2:
The release mechanism is designed to be self-service through the button-actuated ejector pin system. When the button is pressed, the ejector pin automatically pushes the screws out of the mounting holes, enabling the mount to be removed without external tools. The system serves itself by converting simple button pressure into automated screw ejection.
2Ease of operation
If conventional screw-based mount fixing method is used, then the mount can be locked securely, but the process is boring and requires preparation of tools
Solution Approach 1:
Multiple functions are merged into a single integrated mechanism: the rotating ring serves both as the mounting interface and the actuation mechanism, while the ejector pin combines screw-holding and screw-ejection functions. This merging reduces the need for separate tools and simplifies the user interaction to a single rotational motion.
Solution Approach 2:
The ejector pin acts as an intermediary between the button and the screws. Instead of the button directly manipulating the screws, the ejector pin mediates by converting button pressure into linear motion that pushes the screws out. This intermediary simplifies the user's task while managing the complexity of the underlying mechanism.
3Reliability
If screws are used to lock the mount, then the mount can be fixed firmly, but the screws may be lost accidentally during disassembly
Solution Approach 1:
The screws are extracted from their traditional role as permanent fastening elements and transformed into temporary positioning elements. The ejector pin system extracts the screws from the mounting holes in a controlled manner during disassembly, and the rotating ring design ensures screws are retained in designated slots rather than being completely removed, eliminating the risk of loss.
4Reliability
If conventional screw tightening method is used, then the mount can be locked, but uneven locking force may cause oblique installation compromising shooting effect
Solution Approach 1:
The mounting process uses preliminary action through the rotating ring mechanism that guides the mount into proper alignment before final locking. The rotating ring's geometric constraints and the ejector pin's predetermined screw positions ensure that the mount is automatically positioned correctly during the rotation process, eliminating the need for manual alignment adjustments.
Solution Approach 2:
The mechanism incorporates feedback through the rotating ring's engagement features that provide tactile and visual confirmation of proper mounting position. As the rotating ring turns, the interaction between its features and the lens mount provides feedback on alignment status, ensuring uniform locking force and correct positioning before the mounting process is complete.
Data Source
AI summary
A lens mount replacement device. A first notch and a second notch communicated with each other are formed in a base, an ejector pin is provided in the first notch, a button is provided in the second notch, the ejector pin can move under the action of the button, a first slot is formed in the base, a first reverse slot of a sliding pressing ring is formed in the first slot in a penetrating mode, a mount rotating ring and a rotating ring pressing ring are clamped on the base, and a hand screwing ring is sleeved on the first reverse slot of the sliding pressing ring from the distal end and is fixed in a threaded connection mode. The mount is inserted into the sliding pressing ring and locked by rotating the hand screwing ring.