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Thermo-sensitive magnetic releaser of fireproof door

A technology of fire doors and release devices, which is applied to fire doors, door/window accessories, power control mechanisms, etc. It can solve the problems of inconvenient switching between door opening and closing, unfavorable energy saving and environmental protection, and poor safety, and achieves simple structure and easy use. Safe and convenient to open and close

Inactive Publication Date: 2015-02-04
葛洪正
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the releasers currently used are mainly electromagnetic releases, which usually consume electric energy. In addition to being unfavorable for energy saving, environmental protection and easy aging, there are also the following two main problems: first, when there is no fire, it is inconvenient to switch between opening and closing the door; Second, long-term power-on work, poor security

Method used

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  • Thermo-sensitive magnetic releaser of fireproof door

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings.

[0018] Such as figure 1 As shown, the heat-sensitive magnetic fire door release device of the present invention includes a magnetic source assembly 1 installed on the fire door and a release assembly 2 installed on the wall or the ground. The magnetic source assembly 1 includes a permanent magnet steel 3, and the release assembly 2 includes the heat-sensitive magnetic sheet 6; under normal temperature conditions, usually -10°C~55°C, the fire door is opened to make the magnetic source assembly 1 and the release assembly 2 absorb together to form a normally open fire door; when the temperature of the heat-sensitive magnetic sheet 6 rises When it reaches the Curie temperature, it can be customized between 55°C~150°C, for example, 56°C~140°C or 60°C~130°C. The mutual attraction between the magnetic source component 1 and the release component 2 disappears, and the fire doo...

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Abstract

The invention discloses a thermo-sensitive magnetic releaser of a fireproof door. The releaser comprises a magnetic source component and a release component. The magnetic source component is mounted on the fireproof door and comprises a permanent magnet steel, and the release component is mounted on the wall or the ground and comprises a thermo-sensitive magnetic sheet. By means of the principle of the loss of ferromagnetism of thermo-sensitive magnetic sheet materials at the custom temperature, the mutual attractive force between the magnetic source component and the release component disappears after the thermo-sensitive magnetic sheet is heated to the Curie temperature during the working or the environment temperature rises to the custom temperature in the fire situation, and the fireproof door is closed by the drive of the elasticity of a door closer. The thermo-sensitive magnetic releaser of the fireproof door has the advantages of simple structure, low cost and the like, and is beneficial for saving energies, convenient to operate and wide in applicability. The releaser has an automatic release function and an automatic power off function after release. The releaser is provided with overcurrent-and-overheat protection, rain proof and safe and reliable.

Description

technical field [0001] The invention relates to a normally open fire door release device, in particular to a heat-sensitive magnetic fire door release device which releases a normally open fire door in time when a fire occurs. Background technique [0002] In recent years, with the rapid development of urban economy, in order to protect the lives and properties of the masses, various fire door control devices such as door closers and releasers are usually installed in living places and public places. These fire door control devices must meet the requirements of normally open fire doors in the "Code for Fire Protection Design of High-rise Civil Buildings", "Fire Doors" and other standards and the requirements of fire doors in actual use places. However, the releasers currently used are mainly electromagnetic releases, which usually consume electric energy. In addition to being unfavorable for energy saving, environmental protection and easy aging, there are also the following...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E05F15/20E06B5/16
Inventor 葛洪正
Owner 葛洪正
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