Stereoscopic Locking Connecting Assembly for Door Guardrails
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Solution Overview
Problem
Existing door guardrails are not secure enough as children can easily unlock them by pushing the transverse pin out of the transverse slot, compromising safety.
Innovation Solution
A connecting assembly with both a transverse locking device and a longitudinal locking device is used between connectors, ensuring doubly locked and stereoscopic locking, making it difficult for children to unlock, thereby enhancing safety and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single transverse locking device is used between the door frame and guardrail door body, then the structure is simple and easy to operate, but the locking reliability is insufficient and children can easily unlock it
Solution Approach 1:
The patent introduces a longitudinal locking device that operates in a direction perpendicular to the transverse locking device. This dimensional addition creates a stereoscopic locking system where the transverse pin prevents movement in one direction while the longitudinal pin prevents movement in another direction, thereby significantly improving locking reliability without making the device overly complex
Solution Approach 2:
The locking system is divided into two independent locking devices: a transverse locking device with a transverse pin and a longitudinal locking device with a longitudinal pin. Each pin can be independently operated and locked, allowing the system to maintain simplicity in each individual component while achieving high reliability through the combined effect of both locking mechanisms
2Strength
If only a transverse locking device is provided, then the device complexity is low, but the connection firmness between door frame and guardrail door body is insufficient
Solution Approach 1:
The patent adds a longitudinal locking device that constrains movement in the longitudinal direction, complementing the transverse locking device that constrains movement in the transverse direction. This multi-dimensional constraint system significantly enhances the connection firmness between the door frame and guardrail door body by preventing movement in multiple directions simultaneously
Solution Approach 2:
The patent combines the transverse locking device and longitudinal locking device into a unified locking system. Both locking devices work together to provide comprehensive restraint, merging their individual locking functions to achieve superior connection firmness that neither device could provide alone
Data Source
AI summary
Disclosed are a connecting assembly, a door guardrail and a fence using the connecting assembly. The connecting assembly includes a first connector and a second connector, a transverse locking device and a longitudinal locking device are arranged between the first connector and the second connector, and the longitudinal locking device is capable of limiting relative movement of the first connector and the second connector in a transverse direction.