Video Camera Lens Assembly With Quick P-Direction Adjustment
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Solution Overview
Problem
Adjusting the lens direction of a video camera requires manual removal of a transparent cover, making the P-direction adjustment complicated and cumbersome.
Innovation Solution
A video camera design that allows direct detachment of first and second protrusions to enable lens rotation in the P-direction without removing the upper shell assembly, utilizing a press-fitted tooth structure for engagement and disengagement, and incorporating a rotating support frame and elastic sealing ring for stability and sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the transparent cover is removed from the lens assembly to adjust the lens in P-direction, then the lens adjustment can be performed, but the operation becomes complicated and time-consuming
Solution Approach 1:
The lens assembly is segmented into adjustable components with independent adjustment mechanisms. The lens can be adjusted in P-direction through a simplified interface (protrusion detachment) without requiring removal of the entire upper shell assembly, enabling partial disassembly for specific adjustment purposes only.
Solution Approach 2:
The adjustment function is extracted from the complex cover removal process. By providing a dedicated adjustment interface through protrusion detachment, the lens adjustment capability is separated from the upper shell assembly removal operation, allowing adjustment without full disassembly.
2Ease of operation
If the upper shell assembly is removed from the lens assembly for P-direction adjustment, then the lens can be adjusted, but the device complexity increases
Solution Approach 1:
The adjustment mechanism is segmented into independent functional elements (protrusions on lens assembly and corresponding receptacles on upper shell assembly). This allows the adjustment function to be accessed through a simplified interface rather than requiring complete disassembly of the upper shell assembly.
Solution Approach 2:
The essential adjustment capability is extracted from the complex upper shell assembly removal process. The protrusion-receptacle interface provides a dedicated adjustment pathway that separates the adjustment function from the full disassembly operation, reducing device complexity.
3Stability of the object's composition
If the lens assembly is fixed with a tight press-fit structure, then structural integrity is maintained, but the protrusion detachment becomes difficult
Solution Approach 1:
The press-fit structure employs local quality variation through differently sized protrusions. The first protrusion has smaller dimensions allowing easier detachment for adjustment, while the second protrusion has larger dimensions providing stronger structural connection. This local differentiation enables both easy adjustment and structural stability.
Solution Approach 2:
The adjustment mechanism uses asymmetric protrusion design where the first protrusion is deliberately made smaller than the second protrusion. This asymmetry creates a hierarchy of connections: the smaller first protrusion facilitates easy detachment for adjustment, while the larger second protrusion maintains structural integrity, resolving the contradiction between ease of operation and structural stability.
Data Source
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AI summary
Disclosed is a video camera, comprising a lens assembly (1), an upper shell assembly (2) and a lower shell assembly (3). The upper shell assembly (2) covers the lens assembly (1). The lens assembly (1) is fixedly connected to the upper shell assembly (2), and both the lens assembly (1) and the upper shell assembly (2) are provided on the lower shell assembly (3) so as to be rotatable in P-direction. The upper shell assembly (2) is provided with a first protrusion (21), and the lower shell assembly (3) is provided with a second protrusion (31), and the first protrusion (21) and the second protrusion (31) are press-fitted to each other so as to limit the rotation of the lens assembly (1) in P-direction relative to the lower shell assembly (3). The rotation adjustment of the lens in P-direction can be realized by directly detaching the first protrusion (21) from the second protrusion (31) without removing the upper shell assembly (2) from the lens assembly (1), which is convenient to operate.