Door Switch System With Segmented Insertion Mechanism
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Solution Overview
Problem
Existing door switching systems for access control often have components integrated within doorknobs, leading to increased size and design limitations, and lack a standard connection between the door handle and lock, making it impossible to open doors at will, especially in fire and security doors.
Innovation Solution
A switching system with most components arranged outside the door handle, utilizing an anchoring body inside the door leaf to connect the hollow bearing body and insertion means, allowing for a secure and reliable connection between the door handle and lock, enabling door opening through the insertion of a rod driven by electromagnets or compression springs, with mechanisms for safe and reliable operation, including return springs and magnetic fields for power failure scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If components of the switching system are integrated within the door handle, then the connection between door handle and lock is established, but the door handle size increases and design possibilities are limited
Solution Approach 1:
The switching system is divided into separate components: the bearing body with connecting elements remains integrated with the door handle, while the insertion body is separated and positioned in the door leaf. This segmentation allows the door handle to maintain its original size and design while still achieving reliable connection through the distributed component arrangement.
Solution Approach 2:
The insertion body is extracted from the door handle and positioned separately in the door leaf. This extraction removes the bulky components from the door handle, preserving its compact size and design freedom, while the connection function is maintained through the insertion body's engagement with the connecting elements.
2Reliability
If a connection between door handle and lock is established for access control, then security is improved, but the door cannot be opened at will
Solution Approach 1:
The connection between door handle and lock is made dynamic through the movable insertion body that can switch between engaged and disengaged positions. When engaged, access control is maintained; when disengaged, the door can be opened freely. This dynamic state change allows the system to adapt between security and flexibility requirements.
Solution Approach 2:
The system changes the connection parameter between door handle and lock by moving the insertion body between positions. This parameter change (connected/disconnected) enables the door to switch between access-controlled mode and free-opening mode, providing operational flexibility while maintaining security when needed.
3Adaptability or versatility
If different door handles are used for access-controlled and non-access-controlled doors, then specific functionality is achieved, but uniformity across multiple doors is lost
Solution Approach 1:
The bearing body with connecting elements serves multiple functions: it provides the connection mechanism for access-controlled doors while maintaining a standard design that can be used on both access-controlled and non-access-controlled doors. The insertion body's presence or absence determines the access control functionality, allowing uniform door handles to serve different purposes.
Solution Approach 2:
The insertion body acts as an intermediary that enables access control functionality without requiring different door handle designs. By adding or removing this intermediate component, the same door handle can provide either access control or free operation, achieving versatility without sacrificing uniformity.
4Reliability
If the insertion body is held in active position by electromagnet, then reliable connection is achieved, but the system fails during power outages
Solution Approach 1:
A compression spring is pre-loaded to provide a backup holding force for the insertion body. This spring acts as a cushioning mechanism that can maintain the connection in case of power failure, preventing the harmful effect of losing access control functionality during electrical outages.
Solution Approach 2:
The compression spring provides self-service by automatically maintaining the insertion body in the active position through its stored elastic energy, without requiring external power supply. This self-powered mechanism ensures continuous operation during power outages, making the system independent of electrical power for basic connection maintenance.
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
This solution allows for uniform door handles across multiple doors, including access-controlled ones, without needing handle replacements, ensures safe and reliable operation, and maintains functionality during power outages, while simplifying installation and design by externalizing system components.
Implementation Method 1
the drive means comprise a compression spring and a locking ring attached to the rod. In this embodiment as well, the rod acting as the insertion element is the rod of an electromagnet, but in this second embodiment, the rod moves into the working position due to the thrust of the compression spring
Implementation Method 2
For this purpose, it generates a magnetic field whose polarity is reversed compared to the magnetic field generated in the first embodiment. When the power fails, the electromagnet ceases to act, and the compression spring can then move the rod into its working position.
Implementation Method 3
return elements are provided, which are designed, for example, as a return spring and act on the insertion element to return it to its active position. During the movement of the insertion element into its active position, the insertion means, i.e., the rod, compress the return spring, but as soon as the rod is no longer held in its working position by the insertion means, the return spring is free to relax and return the insertion element to its inactive position.
Data Source
Figure 1
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Figure 4~6
AI summary
The invention relates to a switch system for a door with access control, comprising: a first (1) and a second connection element (2), the first (1) of which is connected to the door component for opening the door and the second (2) of which is connected to the door lock, each of the two connection elements (1, 2) having an insertion seat (1b, 2b); a hollow bearing element (3) within which the first and the second connection element (1, 2) are mounted rotatably about the longitudinal axis (A-A) of the bearing element (3), said first (1) and second connection element (2) also protruding from the bearing element (3) with connection regions; an insertion element (4) which is arranged within the bearing element (3) and between said sides (1a, 2a) and which (4) is mounted so as to be movable in a movement direction (B-B) which lies perpendicular to the longitudinal axis (A-A) from at least one inactive position in which an introduction part (4a) of the insertion element (4) is not positioned in a space delimited by the insertion seats (1b, 2b), into an active position, in which the introduction part (4a) is positioned in the space and connects the two connection elements (1, 2) to one another; insertion means for moving the insertion element (4) into its active position and for holding same; drive means for driving said insertion means such that they move the insertion element (4) into its active position; and an anchoring element (5), which has an interior (5a) in which the door lock is accommodated and fastening means for fastening the bearing element (3) on said anchoring element (5); wherein said bearing element (3), anchoring element (5), insertion means and drive means are situated within the door leaf.