Adjustable Scissor Turnstile Gate Leaf Width via Eccentric Disk
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Solution Overview
Problem
Existing turnstile blocking apparatuses require replacement of transmission components to adjust passage width, which is inefficient and resource-intensive due to fixed eccentricities and lengths of components.
Innovation Solution
A mechanism that adjusts the eccentricity of an eccentric disk and the length of a connecting rod, allowing for variable blocking width by using a flange with multiple mounting holes and a retractable connecting rod mechanism with threaded traction rods and lock nuts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the transmission connecting mechanism uses a fixed eccentric disk and connecting rod, then the structure is simple and easy to manufacture, but the blocking width cannot be adjusted and component replacement is required for width changes
Solution Approach 1:
The patent applies dynamics by making the previously fixed eccentric disk and connecting rod adjustable. The eccentric disk now has multiple mounting positions that can be changed during operation, and the connecting rod length can be modified, transforming static components into dynamic, adaptable elements that enable blocking width adjustment without complete component replacement
Solution Approach 2:
The patent implements parameter changes by allowing modification of the eccentric distance (through multiple mounting positions on the eccentric disk) and connecting rod length. These parameter adjustments enable the blocking width to be varied within a certain range, resolving the contradiction between fixed simple structure and adjustable functionality
2Ease of manufacture
If the eccentric disk and connecting rod are fixed in design, then manufacturing and installation are straightforward, but adjusting passage width requires replacing entire transmission components, wasting resources
Solution Approach 1:
The patent applies segmentation by dividing the eccentric disk into multiple sections with distinct mounting positions. This allows the eccentric distance parameter to be adjusted by selecting different mounting locations rather than replacing the entire eccentric disk, thereby reducing material waste while maintaining ease of initial manufacture
Solution Approach 2:
The patent implements universality by designing the eccentric disk and connecting rod to serve multiple functions: they can be configured for different blocking widths through adjustable mounting positions and length modifications. This multi-functionality eliminates the need to manufacture and discard separate components for different width requirements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables adjustable blocking width of a gate leaf within a range while ensuring complete opening and recovery, reducing material waste and operational costs.
Implementation Method 1
The connecting rod mechanism (3) adjusting its length retractably
Implementation Method 2
locking the connecting rod mechanism (3) at the adjusted length
Data Source
AI summary
The invention discloses a scissor-type gate blocking apparatus with an adjustable blocking width of a gate leaf. According to its technical solutions, the apparatus comprises a shaft 1 and an initiative swing arm 4. It also comprises an eccentric disk 21 connected with the shaft 1 and eccentrically provided with a plurality of mounted holes 211 of the eccentric disk 21, an eccentric amount adjusting piece 22 connected with the eccentric disk 21 through the mounted hole 211 of the eccentric disk 21, a small shaft 223 eccentrically fixed at the eccentric amount adjusting piece 22, and a connecting rod mechanism adjusting its length retractably and connected with the initiative swing arm 4. The blocking apparatus has the advantages that it has a simple and practical structure and can adjust the blocking width of the gate leaf within a certain range.