Protective Sliding Door Assembly for Single-Person Installation

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Solution Overview

Problem

Existing sliding door railings require two operators for installation due to the need for secure support and fixation, leading to potential installation errors and inefficiencies, especially when a single person installs them.

Innovation Solution

A new type of protective sliding door with a door railing body, a locking mechanism, and a positioning mechanism that allows for single-person installation by first fixing the mechanisms in place and then connecting the door railing body, enabling easy swinging and locking operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional sliding door railing installation method is used, then secure support and fixation can be achieved, but two operators are required and installation complexity increases

Engineering Contradiction:
Improveinstallation stabilityVSAvoidinstallation process
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The installation process is divided into two independent phases: first installing the positioning mechanism and locking mechanism separately on the wall, then installing the door railing body and connecting it to the mechanisms. This segmentation allows single-person installation by eliminating the need for simultaneous support and fixation operations.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The positioning mechanism and locking mechanism are installed in predetermined positions before the door railing body is installed. This preliminary action ensures that all fixation points are ready in advance, allowing the door railing body to be directly connected without requiring real-time support during fixation operations.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If traditional installation method is used, then proper fixation can be achieved, but installation time increases and efficiency decreases

Engineering Contradiction:
Improvefixation securityVSAvoidinstallation efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The installation process is segmented into separate steps: first installing the positioning and locking mechanisms, then installing the door railing body. This eliminates the need for continuous real-time support during fixation, significantly reducing installation time while maintaining fixation security.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

All fixation mechanisms are installed in advance at predetermined positions before the door railing body is installed. This preliminary preparation eliminates time-consuming real-time adjustment and support operations during the actual installation, improving productivity while ensuring reliable fixation.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If traditional installation method is used, then secure support during installation can be achieved, but installation errors may occur due to manual positioning difficulties

Engineering Contradiction:
Improveinstallation stabilityVSAvoidinstallation accuracy
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The positioning mechanism is installed at a predetermined position before the door railing body is installed. This preliminary positioning establishes accurate reference points in advance, eliminating manual positioning difficulties and preventing installation errors such as door tilting and position deviations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The positioning mechanism acts as an intermediary component that provides stable support and accurate positioning during installation. By connecting the door railing body to this pre-installed positioning mechanism, the system eliminates the need for manual support and real-time adjustment, ensuring high installation accuracy.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Device complexity

If hinge seat is directly installed on sliding door railing, then structure is simplified, but re-installation is required due to installation errors

Engineering Contradiction:
Improvestructure simplicityVSAvoidinstallation reliability
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system is segmented into separate components: positioning mechanism, locking mechanism, and door railing body. The positioning mechanism is installed separately on the wall first, then the door railing body is connected to it. This segmentation prevents installation errors that would require re-installation, while the overall structure remains simple and easy to assemble.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS20250333982A1New type of protective sliding door
Publication Date: 2025.10.30 GUANGZHOU SAIR IND CO LTD
  • US20250333982A1 patent drawing
  • US20250333982A1 patent drawing
  • US20250333982A1 patent drawing

AI summary

The present invention discloses a new type of protective sliding door and, during installation, the positioning mechanism and locking mechanism can be first fixedly installed in a predetermined position, and then the door railing body can be installed, the second connecting piece at the lower part of the pivot connection side of the door railing body can be flexibly connected to the lower part of the positioning mechanism, the connecting piece that can be installed on the first connecting piece can be fixedly assembled with the upper part of the positioning mechanism, so that the installed door railing body can open or close the door by swinging relative to the positioning mechanism and, after the door is closed, the locking mechanism can be connected to the locking side of the door railing body to lock the door railing body.