Fireproof door closer

A technology of fire doors and door closers, which is applied to door/window accessories, switches with braking devices, buildings, etc. It can solve the problems of fire rescue delays, failure to close doors, etc., and increase the speed of closing Effect

Inactive Publication Date: 2016-07-13
天津市宝坻区大顺特种门业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fire-proof door closers in the prior art cannot achieve the effect of closing the door quickly when the door is closed, so that there will be a certain delay in fire rescue. Therefore, in order to solve the above problems, it is urgent to develop a new A fire door closer

Method used

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  • Fireproof door closer

Examples

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Embodiment Construction

[0013] Such as figure 1 A door closer for a fire door shown includes a sliding table assembly 1, a hydraulic assembly 2 and a straight beam 3; one end of the straight beam 3 is installed in cooperation with the sliding seat 4 of the sliding table assembly 1; the straight beam The other end of 3 is installed in cooperation with the hydraulic assembly 2; the front side of the hydraulic assembly 2 is equipped with a door panel installation seat 5; the door panel installation seat 5 is installed in cooperation with the top of the door panel of the fire door; Slide rail 7 cooperates with door frame and installs.

[0014] The sliding table assembly 1 and the hydraulic assembly 2 are installed on the side of the door panel close to the door frame.

[0015] The straight beam 3 is directly made of shaped steel.

[0016] The screw rod of the slide table assembly 1 is installed in cooperation with the motor 6 through a shaft coupling 8 .

[0017] The working principle of a door closer...

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PUM

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Abstract

The invention discloses a fireproof door closer comprising a sliding table assembly, a hydraulic assembly and a straight beam. One end of the straight beam is cooperatively installed with a slide seat of the sliding table; the other end of the straight beam is cooperatively installed with the hydraulic assembly; a door plate installation seat is installed on the front side of the hydraulic assembly; the door plate installation seat is cooperatively installed with the top of the door plate of the fireproof door; and a sliding rail of the sliding table assembly is cooperatively installed with a door frame. The sliding table assembly is driven by a motor via combination between a lead screw and a coupler and greater power can be produced; the front side of the hydraulic assembly is connected with the fireproof door plate via the door plate installation seat and then joined with the sliding table assembly via cooperation between the straight beam and the sliding seat of the sliding table assembly; with cooperated use between the sliding table assembly and the hydraulic assembly, when a door seam is opened for the hydraulic assembly, the sliding table assembly can pull the fireproof door open, so speed of fireproof door close can be improved to a large extent.

Description

technical field [0001] The invention relates to a fire door closer and belongs to the technical field of fire door components. Background technique [0002] A fire door is a door that can meet the requirements of fire resistance stability, fire door integrity and heat insulation within a certain period of time; it is a fire partition with certain fire resistance located in fire compartments, evacuation stairwells, vertical shafts, etc. As a fire protection facility, fire doors play an important role in fire accidents. Existing fire doors are equipped with a door closer. The door closer is a spring-like hydraulic device on the door head. When the door is opened It can be compressed and released to automatically close the door. It acts like a spring door and can ensure that the door is closed to the initial position accurately and in time after it is opened. However, the fire-proof door closers in the prior art cannot achieve the effect of closing the door quickly when the do...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05F3/00
Inventor 张辉郭如杰
Owner 天津市宝坻区大顺特种门业有限公司
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