Sliding Fire Gate Passage Door Locking Mechanism
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Solution Overview
Problem
Existing sliding fire gates do not adequately prevent the passage door from opening during gate motion, posing a safety risk as they lack effective locking mechanisms to ensure the door remains secure both during operation and in emergency situations like fires.
Innovation Solution
A mechanical or electrical locking system is integrated into the sliding gate, featuring a tensioning spring and bolt mechanism or an electric bolt with a latch, ensuring the passage door is locked during gate movement and unlocked only when the gate is closed, utilizing a linkage and guide for mechanical systems or an electric power supply for electrical systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no locking system is installed, then the device complexity is low, but the reliability of preventing door opening during gate motion is insufficient
Solution Approach 1:
The locking system merges the door locking function with the gate wing motion control. The bolt mechanism is integrated into the gate structure, utilizing the gate's motion state to automatically control door locking, thereby achieving reliable door security while maintaining relatively simple device complexity.
Solution Approach 2:
The locking system employs self-service through automatic operation based on gate position. The tensioning spring and linkage mechanism automatically lock the door when the gate is in motion and unlock it when the gate is closed, eliminating the need for manual intervention or complex control systems.
2Reliability
If a mechanical locking system with tensioning spring and bolt is used, then the reliability of preventing door opening during motion is improved, but the ease of operation deteriorates due to manual intervention requirements
Solution Approach 1:
The mechanical locking system is designed to operate automatically based on gate position. The tensioning spring engages the bolt to lock the door during gate motion, and the linkage releases the bolt when the gate is closed, making the system self-operating without requiring manual intervention.
3Ease of operation
If an electrical locking system with electric bolt and battery is used, then the ease of operation is improved through automatic unlocking, but the use of energy increases due to power supply requirements
Solution Approach 1:
The electrical locking system replaces the purely mechanical operation with an electrically actuated bolt mechanism. The electric bolt provides automatic unlocking functionality, improving ease of operation, while the battery supplies the necessary energy for electrical actuation.
4Ease of manufacture
If the locking system is located in the top part of the gate above the passage door, then the manufacturing precision is improved with simpler assembly, but the object-affected harmful factors increase due to potential interference with gate motion
Solution Approach 1:
The locking system is positioned in the top part of the gate, utilizing the vertical dimension above the passage door. This spatial arrangement simplifies manufacturing and assembly while the linkage mechanism is designed to clear the gate motion path, preventing interference through proper dimensional planning.
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
The locking system effectively secures the passage door, enhancing operational safety by preventing accidental opening during gate motion and ensuring the door can only be opened when the gate is in a closed position, particularly critical during fires when power is unavailable.
Implementation Method 1
a tensioning spring attached to the housing at one end and connected to the bolt at the other end
Data Source
Figure 1~2
Figure 3~5
Figure 6~8
AI summary
The subject of the invention is a sliding gate, particularly a fire gate. Such gates are intended mainly for enclosing space and preventing fire from spreading. In the case of gates crossing evacuation routes, the gate wing is provided with at least one passage door. A sliding gate including a housing with an entry pocket, placed within the housing of the moving rail and a gate wing with the passage door and a drive system, characterised in that it is equipped with a mechanical locking system (5) located in the top part of the gate wing (1), above the passage door (4), formed by a body (6) made of an closed profile, a bolt (7) installed and rotating on a pin (8) placed inside the body (6), a tensioning spring (9) attached to the housing at one end and connected to the bolt (7) at the other end, a linkage (10) provided as a steel bar, in the closed position of the gate resting on the housing at one end and holding the bolt (7) in the unlocked position at the other end, a linkage (10) guide (11) made of a closed profile, fixed within the body (6), a latching socket (12) with a width corresponding to the bolt (7) thickness, located in the top part of the passage door (3) wing, or with an electric locking system (13) located on the gate wing (1), including an electric bolt (14) with a latch (15) located within the passage door (3) area, a battery (16) providing power supply through the electric bolt (14) wires and a latching socket (17) provided at the edges of the door wing (4).