KR200431190Y1 - A damper for fire protection - Google Patents

Abstract

The present invention relates to a fire damper installed indoors, the frame 10 of the rectangular frame shape fixed to the ceiling opening (H1) and side wall opening (H2) of the cubic structure (1), respectively; A plurality of opening and closing panels 20 having fixed hinge shafts 23 rotatably arranged at equal intervals inside the frame 10; Panel interlocking means (30) connected to the link (24) of the opening and closing panel (20) so as to simultaneously drive the opening and closing panels (20); And a panel driving means 40 connected to the hinge shaft 23 of the opening / closing panel 20 to drive the panel interlocking means 30. The panels are normally opened for ventilation purposes and then fired. Fire protection damper is provided to protect the facility or equipment installed inside by closing the open / close panel through fire occurrence signal of receiving panel. The sandwich panel type is filled with non-combustible insulation in the panel body by the present invention. It can block the outflow of extinguishing gas to improve extinguishing power.In addition, the hinge shaft of open / close panel is eccentrically set to one side, and it is normally opened and closed for ventilation purpose through an operation switch. This allows quick opening and closing of the open panel without the need for a separate switch.

Transformers, dampers, switchgear panels, panel positioning means.

Description

Fire damper {A damper for fire protection}

Figure 1 is a side cross-sectional view showing the installation state of the upper, lower fire damper to which the present invention is applied.

Figure 2 is a perspective view of the main incision showing the opening and closing panel applied to the present invention.

Figure 3 is a side cross-sectional view showing the internal structure of the invention open and close panel.

Figure 4 also shows a cross-sectional view showing an installation state of the upper fire damper to which the present invention is applied.

Figure 5 is a plan view showing a configuration example of the upper fire damper to which the present invention is applied.

Figure 6 is a cross-sectional view showing a panel position adjusting means that is one part of the present invention.

7 is a side cross-sectional view of FIG. 6.

Figure 8 is an enlarged view of the main portion showing the opening and closing operation of the opening and closing panel applied to the present invention.

9 is an enlarged view illustrating main parts showing a rotation means of the opening and closing panel;

<Description of reference numerals for the main parts of the drawings>

1: fireproof cuboid structure 10: frame

20: opening and closing panel 21: panel body

22: non-combustible insulation 23: hinge shaft

24: Link 25: Interface

26: sealing member 27: support groove

30: Panel interlocking means 31: Link bracket

32: Operation rod 33: Lock nut

34: connecting rod 34 ': socket

40: panel drive means 41: electric motor

41 ': Drive sprocket 42: First reduction sprocket

43: second reduction sprocket 44: driven sprocket

The present invention relates to a fire damper for protecting a facility or equipment from fire, and more particularly, to a fire damper of a substation room installed indoors.

 Korean Patent Publication No. 91-228 discloses a fire or smoke damper for use in protecting a building air duct. This technology requires the damper to be opened not only from a remote location but also to release toxic fumes, so that the damper can be selectively opened or closed, and the electric motor by the thermal control switch. A technique combining driving of is disclosed.

Openings may be formed on the upper and side portions of a structure or device for inducing fire and dissipating heat to be installed indoors to enable ventilation through inflow and discharge of external air. For example, public facilities, such as substation rooms, that are necessary and can cause aversion, are increasingly indoors and have adequate ventilation. As such, facilities and devices installed indoors that can cause a fire are required to install a fire damper for spreading and early extinguishing a fire through a building as well as a ventilation device.

The object of the present invention is to provide a fire damper that operates a ventilation function and a reliable fire protection function in the event of a fire for a facility or device installed indoors.

The object of the present invention is also to provide a fire damper for a transformer installed in a cubic structure that is built underground with a roof on the outside.

According to the present invention, the frame 10 of the rectangular frame shape is fixed to the ceiling opening (H1) and side wall opening (H2) of the cubic structure (1), respectively; A plurality of opening and closing panels 20 having fixed hinge shafts 23 rotatably arranged at equal intervals inside the frame 10; Panel interlocking means (30) connected to the link (24) of the opening and closing panel (20) so as to simultaneously drive the opening and closing panels (20); And a panel driving means 40 connected to the hinge shaft 23 of the opening / closing panel 20 to drive the panel interlocking means 30. The panels are normally opened for ventilation purposes and then fired. A fire damper is provided to close an open / close panel through a fire occurrence signal of a reception panel to protect a facility or equipment installed therein from a fire. Here, the cubic structure is a fireproof type, preferably a rectangular parallelepiped concrete structure, and has an opening in which a frame having a rectangular frame shape is fixed so that an open panel can be installed on the ceiling and the sidewalls. The facility or equipment is preferably a transformer (A) and the fireproof cubic structure 1 is installed indoors with a roof and preferably the fireproof cubic structure 1 is installed underground and the ceiling is a ground surface. Level is enough. The hinge shaft 23 is eccentrically fixed to the opening / closing panel 20 so that in case of a fire, the locking device of the panel interlocking means 30 is released by the fire occurrence signal of the receiving panel and the opening / closing panel opened by the weight of the panel is closed. It is desirable to.

The opening and closing panel 20 is preferably a panel body 21 in the form of a steel case having a space therein, a non-combustible insulating material 22 and the panel body 21 filled in the panel body 21. It is fixed to the hinge shaft 23 protruding on the upper and lower, and the link shaft 24 is one end is fixedly connected to the hinge shaft (23). Examples of the non-combustible insulation may be glass wool, porous airgel, or the like. The contact portion 25 at both ends of the panel body 21 is stepped, most preferably three-stepped. The panel body is manufactured by joining two iron plates, which are formed by forming one side of the iron plate in a step shape, by joining each other and joining by welding or the like. The panel interlocking means 30 is preferably a link bracket 31 rotatably connected to the other end of each link 24 and a male screw portion on the surface of the panel interlocking means 31. A plurality of actuating rods 32 'formed with a link bracket fixing means 33, for example, locks, which are fastened to the actuating rods 32 to fix the link bracket 31 in position. A nut 33 and a connecting socket 34 ′ for connecting the actuating rods 32.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 shows a state in which the opening and closing panel 20 of the fire damper 1 of the present invention installed in the firewall (W) is closed, in order to open the opening and closing panel 20 in this closed state to circulate air for heat dissipation. In this case, when the opening switch configured in the receiving panel (not shown) electrically connected to the electric motor 41 is operated, the chain 45 connected to the drive sprocket 41 'is rotated while the electric motor 41 rotates forward. Rotate the driven sprocket 44 of any hinge shaft 23 connected to the first reduction sprocket 42, the second reduction sprocket 44, and the second reduction sprocket 44 by a chain 45 'in a decelerated state. Let's go.

When the arbitrary hinge shaft 23 is rotated at an angle, the opening and closing panel 20 integrally formed thereon is opened by the rotation of the hinge shaft 23, and the link 24 fixed to the hinge shaft 23 is integrally formed. Is rotated. Thus, each actuating rod 32, which is connected to the free end of the link 24 via the link bracket 31, is moved in the solid line direction as shown in FIG.

As such, when one link 24 firstly rotates the entire working rod 34 connected through the connecting rod 34, the plurality of other links 24 connected to the second whole working rod 34 are secondarily connected thereto. By simultaneously rotating the front opening and closing panel 20 can be opened at the same time.

Set the rotation range of the hinge shaft 23 so that the opening angle of the opening and closing panel 20 is within 90 ° and configured to be eccentric so that the center of gravity closes in the open position of the hinge shaft 23. This is necessary to induce to be closed through the weight of the opening and closing panel 20 when the brake which is a locking device of the electric motor 41 is released in the event of a fire to be described later.

When the opening and closing panel 20 is opened at a set angle, the closure maintains the opening state of the opening and closing panel 20 by breaking the electric motor 41.

On the other hand, when the user normally opens the opening and closing panel 20 as described above to enable ventilation, and if you want to artificially close the opening and closing panel 20 as necessary, the user is configured for the closing panel (not shown) By operating the switch to reverse rotation of the electric motor 41 to move the operating rod 32 to the virtual line position of Figure 8 it is possible to close each opening and closing panel 20 as a virtual line.

When the opening and closing panel 20 is closed in the above, the stepped contact portion 25 configured at the end of the opening and closing panel 20 is in close contact with the contact portion 25 of the other opening and closing panel 20 while maintaining airtightness. As the ends overlap with each other in the form of stairs, the expansion of the coupling area and the three-dimensional coupling state are maintained, and the side surface of the opening and closing panel 20 is coupled and supported by the support grooves 27 to support the inner surface of the frame 10. By maintaining the airtight through the sealing member 26 in close contact it is possible to maintain a complete airtightness.

On the other hand, when a fire occurs inside the firewall (W), when a fire signal is sent to a receiver (not shown) through a smoke sensor or a heat sensor installed in the transformer (A), the receiver receives electric power. Supply to the closure of the motor 41 to cause the closure to release the brake of the electric motor (41).

When the brake of the electric motor 41 is released, the fire damper 1 horizontally installed in the ceiling opening H1 as shown in the solid line of FIG. 8 has an opening angle set to within vertical and the hinge shaft 23 is eccentric to one side. The opening and closing panel 20 acting in the direction in which the center of gravity is closed is closed through its own weight, and the fire protection damper 1 installed vertically in the lower opening H2 is the opening and closing panel 20 acting in the direction in which the center of gravity is closed. The weight of the panel interlocking means 30 and the link 24 is added to the closing load in addition to its own weight to close quickly.

On the other hand, if the gap between the opening and closing panel 20 is relaxed during use, as shown in Figure 6 by turning the lock nut 33 in front and rear of the link bracket 31 in any direction to set the interval to move the link bracket 31 After arranging, move the position of the link bracket 31 so that there is no gap between the opening and closing panel 20 to be connected, and then tighten the lock nut 33 closely to the link bracket 31 to fix the position. I can block the gap between (20).

In the above, an embodiment of the present invention has been described, but modifications and variations within the scope without departing from the technical spirit of the present invention by those of ordinary skill in the art belong to the scope of the present invention Of course.

The present invention as described above, the center of gravity by the hinge axis to be made in the direction of the closing direction, the open and closed panel is automatically closed without operating a separate switch in the event of a fire can ensure the stability of the operation effect,

In addition, the panel body of the steel is composed of an enclosure having an accommodating space therein and the opening and closing panel is formed by filling a non-combustible heat insulating material therein to maintain a stable form even at high temperature heat, thereby minimizing deformation such as warping and warping.

In addition, it is possible to completely block the outflow of extinguishing gas by improving airtightness by overlapping each other with a stepped contact portion on the contact surface of each opening and closing panel.

By configuring the link bracket supporting the link to be movable on the operating rod, it is possible to quickly and easily correct the gap between the opening and closing panel to maintain a stable airtight.

Claims (9)

 A frame 10 having a rectangular frame shape fixedly installed at the ceiling opening H1 and the sidewall opening H2 of the cuboidal structure 1; The panel body 21 and the non-combustible insulation 22 filled in the inside of the frame 10 and the inside of the panel body 21 is formed to be rotatable at regular intervals and have a space therein. A hinge shaft 23 fixed to the panel body 21 and protruding from the upper and lower ends thereof, and a link 24 having one end fixedly connected to the hinge shaft 23 and contacting both ends of the panel body 21. The surface portion 25 includes a plurality of open and close panels 20 which are stepped; Panel interlocking means (30) connected to the link (24) of the opening and closing panel (20) so as to simultaneously drive the opening and closing panels (20); Wow It is connected to the hinge shaft 23 of the opening and closing panel 20 is composed of a panel driving means 40 for driving the panel interlocking means 30, the panel is normally opened for ventilation purposes, the receiving panel in case of fire Fire damper to protect the facility or equipment installed inside by closing the open / close panel through the fire occurrence signal of The hinge shaft (23) is eccentrically fixed to the opening and closing panel (20) to release the locking device of the panel interlocking means (30) by the fire occurrence signal of the receiving panel in case of fire. Fire damper to close the open panel The fire damper according to claim 1, wherein the stairs of the contact portion 25 have three steps. 4. The panel interlocking means (30) according to claim 3, wherein the panel interlocking means (30) has a link bracket (31) rotatably connected to the other ends of the respective links (24), and is movable on the surface of the link bracket (31). A plurality of actuating rods 32 having male threads 32 'formed thereon, link bracket fixing means 33 fastened to the actuating rods 32 to fix the link bracket 31, and Fire damper with connection socket 34 'for connecting actuating rods 32 5. The fire damper according to claim 4, wherein the link bracket fixing means is a lock nut (33) and a separate connecting rod (34) for connecting the rigid steel working rods (32) is further included. According to claim 5, The panel driving means 40 is fixed to the place of the frame 10 and the drive sprocket is connected via a chain 45 and the first reduction sprocket 42 of a large diameter on the rotating shaft ( And a second reduction sprocket 43 having a small diameter which is fixed to one end of the hinge shaft 23 and is coaxially formed with the first reduction sprocket 42. ) And a fire damper comprising a driven sprocket 44 connected via a chain 45 ' The fire damper according to claim 6, wherein the opening angle of the opening / closing panel 20 is set to be within 90 ° based on the closing angle so that the opening and closing of the electric motor 41 can be closed at its own weight. The method of claim 7, wherein the upper and lower ends of the panel body 21 of the opening and closing panel 20 is coupled and supported through the support groove 27 to be in close contact with the inner surface of the frame 10 to maintain airtightness ( Fire damper equipped with 26) 4. The support according to claim 3, wherein the support includes a stepped fixed contact portion 12 fixedly installed at both inner surfaces of the frame 10 and contacting the contact portion 25 of the opening / closing panel 20 at an inner end thereof. Fire damper with flange 11

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