A linkage door closer
A door closer and linkage technology, applied in the direction of building fastening devices, wing fan fastening devices, buildings, etc., can solve the problem that the linkage switch cannot conflict with the slider, the effect becomes poor, and the linkage door closer does not respond. Sensitivity and other problems, to achieve the effect of stable work, long service life and sensitive response
Pending Publication Date: 2018-03-09
SUZHOU FUERDA TECH CO LTD
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- Abstract
- Description
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- Application Information
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Problems solved by technology
During work, when the fire door is in the open state for a long time, the slider is always pressed against the touch switch, which will cause the linkage switch to be depressed and cannot be in contact with the slider, making the linkage door closer less responsive and less effective
Method used
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[0019] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0020] See attached figure 1 And attached figure 2 A linked door closer shown includes a linked module 1 , a door-closed module 2 , and a rocker 3 pivotally connected to the linked module 1 and the door-closed module 2 at both ends. The linkage module 1 includes a first guide rail 4 and a second guide rail 5 that communicate with each other, a slider 6 that can be slidably arranged in the first guide rail 4 , and can be slidably and adjustablely arranged in the second guide rail 5 and can limit the slider 6 The limiting component 7 that moves to close the door, and the linkage 8 that is connected with the slider 6 and can touch the limiting component 7 to start or reset. The limiting assembly 7 has a manual mode and an automatic mode. When a fire occurs, the limiting assembly 7 can be reset manually or automaticall...
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A linkage door closer is disclosed. The linkage door closer includes a linkage module, a door closing module and a rocker arm. The linkage module includes a first guide rail and a second guide rail which are communicated with each other, a slide block slidably disposed in the first guide rail, a limiting assembly slidably adjustably disposed in the second guide rail and used for limiting movementof the slide block, and a linkage member connected to the slide block and capable of initiating or resetting the limiting assembly. When a fire hazard occurs, the limiting assembly can be reset manually or automatically so that the slide block slides and the door closing module closes a door. According to the linkage door closer, a manner that a magnet and reed switches cooperate with each other is adopted to control energization of an electromagnetic coil so that the linkage door closer is more sensitive in response and is long in service lifetime. An electrically conductive plate fixed to the guide rail inner wall is adopted to replace an original wire for connection, and therefore a risk that frequent movement of the limiting assembly causes repeated wire winding and unwinding so as tocause wire breakage is prevented, and the linkage door closer is stabler.
Description
technical field [0001] The invention relates to a door closer, in particular to a linkage door closer. Background technique [0002] Fire doors are used to maintain the fire-resistant integrity of the fire escape and provide escape routes. With the development of security technology, in order to make the user's passage more convenient, as well as to obtain ventilation and lighting, etc., and at the same time, in the event of fire and other dangerous situations, it can Therefore, the normally open fire doors that are closed in time came into being. [0003] At present, the existing linked door closers usually use a slider to directly press against the linked switch, so that the linked switch is closed and the electromagnetic coil is energized. In work, when the fire door is in the open state for a long time, the slider is always pressed against the touch switch, which will cause the linkage switch to sag and cannot be in conflict with the slider, making the linkage door cl...
Claims
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Login to View More IPC IPC(8): E05C17/22
CPCE05C17/22
Inventor 聂飞朱力克王永
Owner SUZHOU FUERDA TECH CO LTD