Differential-pressure air supply damper device in smoke control zone

Abstract

The objective of the present invention is to provide a differential-pressure air supply damper device in a smoke control zone, the device comprising: a case structured such that air flows from the outside of a building through the rear and the front thereof is opened so as to enable air to be discharged through the front; an outer frame coupled to the inner surface of the case; an inner frame that can move forward and backward by sliding while supported by the outer frame; an opening and closing plate coupled to one side surface of the inner frame so as to block or open the opened front side of the case while moving forward and backward by means of the inner frame; and a driving means for driving the inner frame to be movable forward and backward from the outer frame.

Description

Differential pressure supply damper device in the smoke control zone

[0001] The present invention relates to a differential pressure supply air damper device within a smoke control zone, and more specifically, to a differential pressure supply air damper device within a smoke control zone, i.e., a fire evacuation space, installed in emergency stairs, corridors, evacuation elevators, etc., of apartments and high-rise buildings, for supplying external air to the smoke control zone in the event of a fire to prevent smoke from the fire space from entering the smoke control zone.

[0002] Generally, vestibules in front of emergency elevators or escape staircases in apartments and high-rise buildings are designated as smoke control zones to prevent fire, and said smoke control zones are equipped with smoke control devices to prevent harmful gases and smoke from entering in the event of a fire.

[0003] The smoke control device described above opens the automatic pressure supply air damper connected to the vertical duct in the event of a fire to allow outside air to flow into the smoke control zone.

[0004] Therefore, the automatic pressure supply air dampers installed in the smoke control zones on each floor are normally closed, but when a fire signal is received, the opening and closing blades are opened to maintain the differential pressure in the smoke control zone at 40 Pa to 60 Pa, thereby preventing the inflow of harmful gases and smoke.

[0005] The smoke control device described above consists of a smoke exhaust duct through which outside air can be introduced, a smoke control box connected to the smoke exhaust duct, and a damper installed to open and close on the front of the smoke control box to exhaust outside air, wherein the damper is structured to open automatically or manually in response to a signal from a fire alarm in the event of a fire.

[0006] Conventional dampers are generally composed of multiple blades made of aluminum material by extrusion molding, as shown in Fig. 1, and have a structure that opens by interlocking all of them. This has the disadvantage that the structure for driving each of them is complex, difficult to manufacture, and prone to failure.

[0007] In addition, it has the disadvantage that production costs inevitably increase because multiple blades must be manufactured by aluminum extrusion molding.

[0008] [Prior Art Literature]

[0009] 1. Republic of Korea Registered Utility Model No. 20-0237121

[0010] The objective of the present invention is to provide a differential pressure supply air damper device in which the opening and closing plate is formed as a single unit and configured to open and close while moving back and forth by the driving of a driving means, thereby facilitating the adjustment of the exhaust volume and making manufacturing simple due to the simple structure, and simultaneously, since the opening and closing plate is circular, the direction of the exhaust air can be evenly distributed up, down, left, and right, thereby providing uniform air pressure within the smoke control area.

[0011] A differential pressure supply damper device in a smoke control area according to an embodiment of the present invention for achieving the above-mentioned purpose is characterized by comprising: a case having a structure with an open front so that air from outside the building can be introduced from the rear and air can be discharged from the front; an outer frame coupled to the inner side of the case; an inner frame capable of moving forward and backward while sliding in a state supported by the outer frame; an opening / closing plate coupled to one side of the inner frame to block or open the open front part of the case while moving forward and backward by the inner frame; and a driving means for driving the inner frame so that it can move forward and backward from the outer frame.

[0012] According to an embodiment of the present invention, the driving means comprises a motor coupled to an inner frame by a bracket, a rotating member coupled to the shaft of the motor and rotating, a protrusion formed at the end of the rotating member, and a traction member having an elongated hole to be tractioned by the protrusion, wherein the traction member is coupled to an outer frame so that when the rotating member rotates and moves up and down with the protrusion inserted into the elongated hole, the inner frame is supported by the outer frame and can move forward and backward.

[0013] According to an embodiment of the present invention, the case is cylindrical in shape and is provided with a circular flange at the front portion for contact with the opening / closing plate, and the opening / closing plate is also formed as a circular plate so that the rear surface of the opening / closing plate contacts the front surface of the flange to block air.

[0014] The effects of the present invention as described above include the fact that, unlike the conventional method of manufacturing blades one by one by extrusion molding aluminum materials, the opening and closing plate is manufactured as a single plate, resulting in a simple structure and easy production; furthermore, since the opening and closing plate is configured to open and close by moving back and forth through the drive of a driving means, the exhaust volume can be easily controlled; and at the same time, because the opening and closing plate is circular, the direction of the exhausted air can be evenly distributed up, down, left, and right, thereby providing uniform air pressure within the smoke control area, making it a very useful invention.

[0015] FIG. 1 is a perspective view showing a conventional differential pressure supply damper device.

[0016] FIG. 2 is an exploded perspective view of the differential pressure supply damper device of the present invention.

[0017] FIG. 3 is a perspective view for showing the combined state of FIG. 2, wherein Figure (a) shows the state in which the opening / closing plate is closed, and Figure (b) shows the state in which the opening / closing plate is open.

[0018] FIG. 4 is a perspective view of the present invention with a portion cut out.

[0019] FIG. 5 is intended to show the operating state of the driving means in the differential pressure supply damper device of the present invention, where (a) illustrates a state in which the inner frame is pushed forward and the opening / closing plate is opened simultaneously as a reaction to the pushing action of the rotating member rotating as the motor is driven, and (b) illustrates a state in which the inner frame is pulled backward and the opening / closing plate is closed as a reaction to the pulling action of the rotating member rotating again.

[0020] FIG. 6 is a reference cross-sectional view sequentially illustrating the opening and closing states of the opening and closing plate by the driving means of FIG. 5.

[0021] FIG. 7 is a reference diagram of the usage state of the present invention.

[0022] A differential pressure supply damper device in a smoke control area according to an embodiment of the present invention is characterized by comprising: a case having a structure with an open front so that air from outside the building can be introduced from the rear and air can be discharged from the front; an outer frame coupled to the inner side of the case; an inner frame capable of moving forward and backward while sliding in a state supported by the outer frame; an opening / closing plate coupled to one side of the inner frame to block or open the open front part of the case while moving forward and backward by the inner frame; and a driving means for driving the inner frame so that it can move forward and backward from the outer frame.

[0023] Hereinafter, embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. Technical terms used herein are merely for referring to specific embodiments and are not intended to limit the invention.

[0024] Furthermore, the singular forms used herein include plural forms unless the phrases clearly indicate otherwise. The meaning of "comprising" as used in the specification specifies a particular characteristic, area, integer, step, action, element, and / or component, and does not exclude the existence or addition of other particular characteristic, area, integer, step, action, element, component, and / or group. Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as generally understood by a person skilled in the art to which the present invention pertains. Terms defined in commonly used dictionaries are further interpreted to have meanings consistent with relevant technical literature and the present disclosure, and are not interpreted in an ideal or formal sense unless otherwise defined.

[0025] The embodiments of the present invention described with reference to the perspective drawings specifically illustrate ideal embodiments of the present invention. As a result, various variations of the drawings, such as variations in manufacturing methods and / or specifications, are expected. Accordingly, the embodiments are not limited to the specific form of the areas depicted and include variations in form resulting from manufacturing, for example. For example, areas depicted or described as flat may generally have rough or rough and non-linear characteristics. Additionally, parts depicted as having sharp angles may be rounded. Therefore, the areas depicted in the drawings are merely approximate, and their forms are not intended to depict the exact form of the areas or to narrow the scope of the present invention.

[0026] Hereinafter, preferred embodiments of a differential pressure supply damper device in a smoke control zone according to the present invention will be described in detail with reference to the attached drawings.

[0027] FIG. 2 is an exploded perspective view of the differential pressure supply damper device of the present invention, FIG. 3 is a perspective view showing the combined state of FIG. 2, where FIG. (a) shows the state in which the opening / closing plate is closed and FIG. (b) shows the state in which the opening / closing plate is open, FIG. 4 is a perspective view of the present invention with a part cut out, FIG. 5 is a perspective view showing the operating state of the driving means in the differential pressure supply damper device of the present invention, where FIG. (a) shows the state in which the inner frame is pushed forward and the opening / closing plate is opened as a reaction to the pushing action of the rotating member rotating at the same time as the motor is driven, FIG. (b) shows the state in which the inner frame is pulled backward and the opening / closing plate is closed as a reaction to the pulling action of the rotating member rotating again, FIG. 6 is a reference cross-sectional view sequentially showing the opening / closing state of the opening / closing plate by the driving means of FIG. 5, and FIG. 7 is a reference diagram of the usage state of the present invention.

[0028] First, it should be noted that identical components or parts in the drawings are indicated by the same reference numerals whenever possible. Additionally, in describing the present invention, specific descriptions of related known functions or configurations are omitted to avoid obscuring the essence of the invention.

[0029] The differential pressure supply damper device (100) of the present invention is configured to allow air from outside the building to be drawn in from the rear and air to be discharged into the inside of the building, i.e., the smoke control zone, from the front, thereby allowing the smoke control zone to maintain a differential pressure and thereby preventing the inflow of harmful gases and smoke, and thus protecting people's safety from fire and smoke.

[0030] The structure of the differential pressure supply damper device (100) of the present invention as described above comprises a case (110) with an open front, an outer frame (120) coupled to the inner side of the case (110), an inner frame (130) that is supported by the outer frame (120) and can move forward and backward while sliding, an opening / closing plate (140) coupled to one side of the inner frame (130) and moved forward and backward by the inner frame (130) to block or open the open front part of the case (110), and a driving means (170) for driving the inner frame (130) to move forward and backward from the outer frame (120).

[0031] At this time, the driving means (170) comprises a motor (172) coupled to the inner frame (130) by a bracket (171), a rotating member (173) coupled to the shaft (172a) of the motor and rotating, a projection (173a) formed at the end of the rotating member, and a traction member (150) having an elongated hole (151) that is pulled by the projection. Of course, the driving means (170) can be configured in various ways and structures, and any driving means (170) can be used as long as it can move the inner frame (130) back and forth from the outer frame (120) to open and close the opening / closing plate (140) coupled to the inner frame (130). Of course, it is even better if the degree of opening and closing of the opening / closing plate (140) can be adjusted, as in the driving means (170) of the present invention.

[0032] As such, the driving means (170) of the present invention is characterized by converting the rotational motion of the rotating platform into the linear motion of the inner frame (130).

[0033] That is, when the protrusion of the rotating stand is inserted into the slot, the protrusion moves up and down vertically along the slot, and in response to the reaction of the fixed outer frame (120), it pushes or pulls the inner frame (130).

[0034] Accordingly, the inner frame (130) slides while supported by the outer frame (120) and reciprocates by the stroke distance of the rotating plate, and the opening / closing plate (140) fixed to the inner frame (130) also reciprocates back and forth by the stroke distance of the rotating plate, thereby enabling the opening of the case (110) to be blocked or opened.

[0035] This is explained in more detail with reference to FIG. 5 as follows. That is, FIG. 5 is intended to show the operating state of the driving means (170) of the differential pressure supply damper device of the present invention. Figure (a) shows the state in which the inner frame (130) is pushed forward as a reaction to the pushing action of the rotating plate rotating as the motor is driven, and the opening / closing plate (140) is opened at the same time.

[0036] Conversely, when the rotating platform rotates again, the inner frame (130) is pulled backward as a reaction to the pulling action, and eventually the opening / closing plate (140) is closed.

[0037] In the present invention, the shape of the case (110) is preferably cylindrical, and the opening / closing plate (140) is also preferably formed as a circular plate. At this time, to increase the contact between the opening / closing plate (140) and the case (110), it is preferable to form a circular flange on the front of the case (110). In addition, the present invention may use an opening / closing plate coupling member (180) to connect the opening / closing plate (140) to the inner frame (130).

[0038] The differential pressure supply damper device (100) of the present invention may receive air from outside the building through a passage (A) where an elevator (B) is installed, but may also receive air from outside the building through a passage between the inner walls of the building as in the conventional method.

[0039] As described above, although the present invention has been explained by limited embodiments, the present invention is not limited thereto, and various modifications and variations are possible within the scope of the technical spirit of the present invention and the equivalent scope of the patent claims described below by those skilled in the art to which the present invention belongs.

Claims

1. A case with a structure that is open at the front so that outside air can be drawn in from the rear and air can be expelled from the front, and An outer frame coupled to the inner surface of the above case, and An inner frame capable of moving forward and backward while sliding while supported by the outer frame, and An opening / closing plate coupled to one side of the inner frame and moving back and forth by the inner frame to block or open the open front part of the case, and A differential pressure supply damper device in a smoke control area, characterized by being composed of a driving means for driving the inner frame to move forward and backward from the outer frame.

2. A differential pressure supply damper device in a smoke control area according to claim 1, wherein the driving means comprises a motor coupled to an inner frame by a bracket, a rotating member coupled to the shaft of the motor and rotating, a protrusion formed at the end of the rotating member, and a traction member having an elongated hole to be tractioned by the protrusion, and wherein the traction member is coupled to an outer frame so that when the rotating member rotates and moves up and down with the protrusion fitted into the elongated hole, the inner frame is supported by the outer frame and can move forward and backward.

3. A differential pressure supply damper device in a smoke control area according to Claim 1, wherein the case is cylindrical in shape and a circular flange is provided at the front portion to be in close contact with an opening / closing plate, and the opening / closing plate is also formed as a circular plate so that the rear surface of the opening / closing plate is in close contact with the front surface of the flange to block air.

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