Photographic Support Slide-In Locking for Compact Height Adjustment
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Solution Overview
Problem
Existing photographic supports with telescopic mechanisms have a large transverse dimension, making them inconvenient for carrying and storing, and the one-sided locking structure is prone to damage and loosening due to uneven stress.
Innovation Solution
A photographic support with a rapid height adjustment mechanism using a slide-in mounting structure that reduces the product's width, allowing for easier carrying and storage, and incorporates a slide-in locking structure to prevent wear and loosening from one-sided stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fixed tube, first movable tube, and second movable tube are arranged in parallel and abreast, then the locking mechanism can function properly, but the transverse dimension of the product becomes large, making it inconvenient for carrying and storing
Solution Approach 1:
The patent implements a nested arrangement where the first movable tube is inserted into the fixed tube, and the second movable tube is inserted into the first movable tube. This nesting structure allows the tubes to be concentric rather than parallel, significantly reducing the transverse dimension while maintaining the telescopic functionality and locking mechanism operation.
2Stability of the object's composition
If the locking members press against the side walls of the tubes to secure them, then the tubes can be fixed in position, but the one-sided pressing method is prone to damage the tube surfaces and cause loosening due to uneven stress
Solution Approach 1:
The patent introduces asymmetric locking members with inclined pressing surfaces that convert the locking motion into a clamping force. The inclined surfaces at different angles create balanced radial forces that evenly distribute stress around the tube circumference, preventing one-sided pressing damage and reducing the risk of loosening due to uneven stress distribution.
Solution Approach 2:
The locking members are designed with preliminary positioning features that guide the tubes into correct alignment before final locking engagement. This preliminary action ensures that the tubes are properly centered and oriented, preventing misalignment that could lead to uneven stress distribution and surface damage during the locking process.
Data Source
AI summary
A photographic support with rapid height adjustment mechanism has a leg with a connection seat on which a fixed tube is fixedly mounted, a first locking seat with a first mounting chamber is fixedly mounted on the fixed tube, and a first movable tube is slid within the fixed tube and extends through the first mounting chamber to the rear side at the rear end. A locking assembly is provided in the first mounting chamber for sleeving on the first movable tube and locked with the first locking seat, a transmission assembly is mounted on the first locking seat to drive the locking assembly to be unlocked or locked, and a driving assembly is used to drive the transmission assembly. Compared to the prior art, the support reduces the size of the product, which is advantageous for carrying and storage.