KR-20260062600-A - explosion proof devices for fire and security shutters

Abstract

The present invention relates to an explosion-proof device for fireproof and security shutters, comprising: a rotating part capable of forward and reverse rotation with respect to a left-right rotation center at the top of a passageway and having the upper end of the shutter connected in the radial direction; a driving part provided on one side of a wall, having a driving shaft on one side mechanically connected to one side of the rotating part in the axial direction; and an explosion-proof cover part connected to one side of a wall while the driving part is housed inside, and having the driving shaft protrude to the outside through one side.

Inventors

• 이재환

Assignees

• 주식회사 지에스이엔지

Dates

Publication Date

20260507

Application Date

20241029

Claims (4)

1. As an explosion-proof device for a fire and security shutter installed at the top of a passage formed in a wall to raise and lower the shutter, A rotating part capable of forward and reverse rotation based on the left and right rotation centers at the upper part of the above passage, to which the upper end of the above shutter is coupled in the radial direction; A driving unit provided on one side of the above wall, wherein a driving shaft on one side is mechanically connected to one side in the axial direction of the above rotating part; and An explosion-proof device for a fireproof and security shutter, characterized by including: an explosion-proof cover portion that is coupled to one side of the wall while the drive unit is housed inside, and protrudes the drive shaft to the outside through one side.
2. In paragraph 1, It further includes a fixing bracket that is coupled to one side of the wall and positioned biasedly on one side of the passage, and is coupled to the front of the explosion-proof cover on one side. The above drive shaft is, An explosion-proof device for a fireproof and security shutter, characterized in that it penetrates the front of the explosion-proof cover portion and the fixed bracket, and the front end is connected to one side of the rotating portion in the axial direction by the power transmission member.
3. In paragraph 2, The explosion-proof cover mentioned above is, A main cover having an internal receiving space formed to accommodate the above-mentioned driving unit, and open at the front, rear, and bottom, and A front cover coupled to the front of the main cover, the front of which is coupled to one side of the fixed bracket, and A rear cover coupled to the rear of the main cover and having one or more withdrawal holes penetrating from front to back, and An explosion-proof device for a fireproof and security shutter, characterized by including a lower cover coupled to the lower surface of the main cover and rotatable to open and close based on a hinge member on one side.
4. In paragraph 3, A first shaft hole that penetrates through both sides of the fixed bracket and through which the drive shaft is coupled in the front and rear directions, and A second shaft hole that penetrates the front cover from front to back so as to face the first shaft hole, and through which the drive shaft is coupled from front to back, and A first bearing having an outer first ring coupled to the first shaft hole, and a first inner ring rotatable inside the first outer ring surrounding the radial direction of the drive shaft, and An explosion-proof device for a fireproof and security shutter, characterized in that an outer second outer ring is coupled to the second shaft hole, and a rear second bearing is further included, wherein a second inner ring capable of relative rotation inside the second outer ring surrounds the radial direction of the drive shaft.

Description

Explosion-proof devices for fire and security shutters The present invention relates to an explosion-proof device for fireproof and security shutters, and more specifically, to an explosion-proof device for fireproof and security shutters capable of preventing an internal explosion from being transmitted to the outside. Generally, shutter devices are used for purposes such as blocking building entrances for security or preventing fire and smoke from entering through passageways in the event of a fire. Recently, structures capable of automatically opening and closing shutter devices are widely used. Such shutter devices consist of a shutter installed to be vertically movable at an entrance, a rotating part that winds the shutter and moves it up and down through rotation, and a motor that transmits rotational force to the rotating part; methods such as raising and lowering the shutter through the operation of a separate switch are also used. However, since conventional shutter devices are installed with the motor exposed to the outside, foreign substances such as dust could easily adhere and become contaminated during prolonged use, and there was a risk of explosion due to gases generated during the operation of the drive unit or attached foreign substances (dust, etc.). A prior art document related to the present invention is Korean Published Patent Application No. 10-2014-0103223 (August 26, 2014), in which a fireproof screen shutter is disclosed. FIG. 1 is a front view showing the state of an explosion-proof device for fireproof and security shutters according to the present invention installed on each wall. FIG. 2 is a perspective view for showing an explosion-proof device for a fireproof and security shutter according to the present invention. FIG. 3 is an exploded perspective view to show an explosion-proof device for a fireproof and security shutter according to the present invention. FIG. 4 is a front view showing an explosion-proof device for a fireproof and security shutter according to the present invention. FIG. 5 is a cross-sectional view showing an explosion-proof device for a fireproof and security shutter according to the present invention. FIG. 6 is a cross-sectional view showing the separated configurations of the fixed bracket and the explosion-proof cover part of the explosion-proof device for fireproof and security shutters according to the present invention. FIG. 7 is a cross-sectional view showing the state in which a flame-retardant member is combined with an explosion-proof device for fireproof and security shutters according to the present invention. FIG. 8 is a cross-sectional view to show the state in which each component of the explosion-proof cover part is separated while a flame-retardant member is combined with the explosion-proof device for fireproof and security shutters according to the present invention. A preferred embodiment according to the present invention will be described in detail below with reference to the attached drawings. The advantages and features of the present invention and the method for achieving them will become clear by referring to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited by the embodiments disclosed below but may be implemented in various different forms, and these embodiments are provided merely to make the disclosure of the present invention complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. In addition, in describing the present invention, if it is determined that related known technologies, etc., may obscure the essence of the present invention, a detailed explanation thereof will be omitted. FIG. 1 is a front view showing the state in which an explosion-proof device for a fireproof and security shutter according to the present invention is installed on a wall, FIG. 2 is a perspective view showing the explosion-proof device for a fireproof and security shutter according to the present invention, FIG. 3 is an exploded perspective view showing the explosion-proof device for a fireproof and security shutter according to the present invention, and FIG. 4 is a front view showing the explosion-proof device for a fireproof and security shutter according to the present invention. FIG. 5 is a front cross-sectional view showing an explosion-proof device for fire and security shutters according to the present invention, FIG. 6 is a front cross-sectional view showing the state in which the fixed bracket and the explosion-proof cover part of the explosion-proof device for fire and security shutters according to the present invention are separated, FIG. 7 is a front cross-sectional view showing the state in which a flame-retardant member is coupled to the explosion-proof device for fire and security shutters according to the present invention, and FIG. 8 is a front cross-s