KR200432464Y1 - Overhead damper door - Google Patents

Abstract

The present invention relates to an overhead damper door. It comprises a guide rail extending upward from the ground and spaced apart in parallel to provide an access space therebetween; A plurality of damper panels supported at both ends of the guide rail and movable along the longitudinal direction of the guide rail; A damper panel connection portion interconnecting the respective damper panels up and down but having a length such that the raised damper panel can be opened from the lower damper panel when an arbitrary damper panel is raised; An opening and closing device for elevating a plurality of damper panels positioned on an upper portion of the guide rail and connected to a top damper panel through a wire and connected to a damper panel connection portion through a top damper panel; It is configured to include a driving unit for driving the opening and closing device to open or lower the opening and closing device to raise or lower the damper panel.

In the overhead damper door of the present invention made as described above, each unit damper panel can be opened at a predetermined gap interval while the damper door is closed, so that security and ventilation can be performed at the same time.

Description

Overhead damper door

1 is a view schematically showing the overall configuration of an overhead damper door according to an embodiment of the present invention.

FIG. 2 is a perspective view illustrating a connection structure of each damper panel of the overhead damper door shown in FIG. 1.

Figure 3 is a perspective view showing in more detail the damper panel connection portion and the departure prevention frame shown in FIG.

Figure 4 is an enlarged perspective view of the main portion of the separation prevention frame shown in FIG.

FIG. 5 is a perspective view illustrating another type of connection structure for connecting each damper panel of the overhead damper door shown in FIG. 1.

6 is a view illustrating the principle of the connection structure shown in FIG.

FIG. 7 is a view illustrating a mechanism in which the overhead damper door automatically operates in a fire according to an embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

11: damper door 13: guide rail 13a: roller guide

15: damper panel 15a: support roller 15b: roller support bracket

15c: groove 15d: protrusion 17: switchgear

19: shaft 21: torsion spring 23: wire drum

25: wire 27: motor 27a: brake

29: chain 31: driving sprocket 33: driven sprocket

35: damper panel connection part 35a: fixed block 35b: first connecting rod

35c: Attachment chain 35d: Second connection rod 35e: Pin

35f: Roller 35k: Roller shaft 37: Fall prevention frame

37a: long hole 37b: roller entry hole 37c: shutter

37d: button 37e: spring 37f: connecting rod

37g: frame main body 39: connection wire 39a: fixed ball

39b: wire through hole 41: wire holder

The present invention relates to an overhead damper door, and more particularly, to an overhead damper door that can simultaneously perform security and ventilation.

In addition to the doors installed at the entrance of the building, shutters installed separately from the outside of the doors are opened in the open state during the opening hours and are lowered after closing to cover the front of the store to prevent outsiders from invading. The shutter of the above-described method may be installed for fire prevention in a department store, a shopping center, or an underground shopping center. The fire shutter is lowered in case of fire to block the progress of the flame and to provide a way out to minimize the damage to life.

By the way, the conventional shutter has a structure that must be wound or unrolled at least, so it is inevitably made thin. Therefore, it can be easily drilled by a welding torch or cut out by a cutter, which does not function as a perfect crime prevention. In addition, in the case of fire protection, since the thickness is thin, it can be easily melted or broken in a fire.

Other than the above type, there is an overhead damper door. The damper door is installed separately from a door that a person enters a factory or other workplace, such as forklifts or other equipment. The damper door is an operation of opening or blocking an entrance and exit by lifting up and down a plurality of damper panels having almost a rectangular plate shape.

The damper door, for example, is installed in the entrance of a substation, a fire station, a distribution center, a factory, an exhibition hall, etc., and is usually fixed to the rail on both sides of the entrance and has a structure in which a plurality of damper panels are guided to the rail and lift.

In particular, substations scattered in urban and rural areas are unmanned substations that open the doors to cool the 154,000 kilowatt air-cooled transformers inside the substations and circulate outside air into the substations. Wild animals or outsiders can get in and cause an electric shock.

The present invention was created to solve the above problems, and it is an object of the present invention to provide an overhead damper door capable of simultaneously performing crime prevention and ventilation since each damper panel can be opened at a predetermined gap with the damper door closed. .

In order to achieve the above object, the present invention includes a guide rail extending upward from the ground and spaced apart from each other in parallel to provide an access space therebetween; A plurality of damper panels supported at both ends of the guide rail and movable along the longitudinal direction of the guide rail; A damper panel connection portion interconnecting the respective damper panels up and down but having a length such that the raised damper panel can be opened from the lower damper panel when an arbitrary damper panel is raised; An opening and closing device for elevating a plurality of damper panels positioned on an upper portion of the guide rail and connected to a top damper panel through a wire and connected to a damper panel connection portion through a top damper panel; It provides an overhead damper door including a drive unit for driving the opening and closing device to cause the opening and closing device to wind or unwind the wire to raise or lower the damper panel.

In addition, the damper panel; It takes the form of a square plate having a certain thickness and is characterized in that it has a plurality of support rollers that are fitted to the guide rail on both sides of one side and rolling.

In addition, the damper panel connection portion; Located up and down on both sides of the adjacent damper panel is characterized in that the chain or the connection wire is fixed to the upper and lower damper panel.

In addition, the upper end of the chain or connection wire is provided with a first connection rod for connecting the upper end of the chain or connection wire and the upper damper panel, the lower end of the chain or connection wire and the lower damper panel of the chain or connection wire Characterized in that the second connection rod for connecting the.

In addition, a roller is rotatably installed at the lower end of the second connection rod, and the lower damper panel accommodates the roller therein and guides the lifting movement of the roller, but prevents the roller from being separated from the upper portion. It is characterized in that the frame is mounted.

In addition, the lower end portion of the second connecting rod and the roller is connected to the roller shaft, the separation prevention frame is fixed to both sides of the damper panel is extended vertically and the roller shaft is moved up and down through the roller shaft to the inner peripheral surface Characterized by having a long hole to guide the.

In addition, the release prevention frame, characterized in that provided with a path for separating the roller from the departure prevention frame, and provided with a shutter that can be opened and closed.

The opening and closing device may include a shaft having one or more wire drums installed horizontally on the guide rail and having the wire wound around the guide rail, and the driving unit shaft-rotating the shaft with an external signal. It includes a motor with a built-in brake for fixing the, the detection unit for detecting smoke or heat generated in and out of the building in which the damper door is installed, and controls the motor in response to the detected content from the detection unit abnormal When the heat or smoke is detected, it characterized in that it further comprises a controller for releasing the brake to lower the damper door by its own weight.

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

1 is a view schematically showing the overall configuration of an overhead damper door according to an embodiment of the present invention.

As shown in the drawing, the overhead damper door 11 according to the present embodiment is installed inside the wall in which the access passage A is provided, and the switch 17 is located above the access passage A. And a plurality of damper panels 15 installed at a lower portion of the opening and closing device 17 and being lifted by the opening and closing device 17 to open or block the access passage A, and both sides of each damper panel 15. It is configured to include a guide rail 13 which is installed in and guides the lifting movement of the damper panel (15). Like the opening and closing device 17, the guide rail 13 is installed inside the wall so as not to be seen from the outside.

In addition, the type of the guide rail 13 may vary depending on the case. For example, it may be applied in a completely vertical form, or alternatively, it may be vertically extended and then be manufactured in a curved shape at the upper end. In the case of the curved guide rail, a separate device capable of traveling along the curved path of each damper panel 15 is, of course, required.

The opening and closing device 17 has a shaft 19 is installed horizontally, the wire drum 23 is installed on both ends of the shaft 19, the wire 25 is wound around its outer peripheral surface, and the shaft 19 It provides an axial rotational elastic force but includes a torsion spring 21 for applying an elastic support force in the direction of winding the wire 25. It is a general technique to elastically support the shaft 15 with the torsion spring 13.

In addition, the drive unit for driving the opening and closing device 17, a motor 27 provided on the side of the shaft 19, a drive sprocket 31 fixed to the drive shaft of the motor 27, and the shaft ( 19 is composed of a driven sprocket 33 and a chain 29 for power connecting the drive sprocket 31 and the driven sprocket 33. Therefore, when the motor 27 is driven in the required direction through the controller 55, the rotational torque of the motor is transmitted to the shaft 19 through the chain 29, and the wire 25 is wound by the shaft rotation of the shaft 19. The damper panel 15 connected to the wire 25 may be raised or lowered.

In particular, the motor 27 is a motor having a brake (27a in FIG. 7) therein. The brake 27a serves to fix the drive shaft of the motor. Thus, for example, when the brake 27a is released in the state in which the wire 25 is wound (the state in which the door panel 15 is raised), the door panel 15 is lowered by its own weight, thereby driving the drive shaft of the motor. The motor 27 having such a function is already known and widely used.

The wire 25 may be used to move the damper panel 15 (in a state of being connected up and down as described below) up and down as a general steel wire. The size of the wire is appropriately designed according to the maximum load applied. The wire 25 is wound around the wire drum 23 and fixed at the lower end thereof to the uppermost damper panel 15. The connection method of the wire 25 and the damper panel 15 may employ any known method.

On the other hand, the damper panel 15 is a rectangular plate-shaped member having a predetermined thickness and has grooves (15c in FIG. 2) and protrusions 15d on its upper and lower surfaces. The groove 15c and the protrusion 15d are provided so that two damper panels 15 neighboring each other up and down may be stacked in a vertical line without shifting from each other. In addition, the width, height and thickness of the respective damper panel 15 is the same. In addition, the material of the damper panel 15 may vary depending on the case. For example, it can be produced from light metal or synthetic resin.

Each damper panel 15 will be described with reference to FIG. 2.

FIG. 2 is a perspective view partially illustrating the connection structure of each damper panel of the overhead damper door shown in FIG. 1.

As shown, the damper panel 15 in this embodiment takes the form of a square plate, and both ends of a pair of guide rails 13 (only one guide rail is shown in FIG. 2) arranged vertically. It is comprised so that it can go up and down in the supported state.

The guide rail 13 is made of a metal having rigidity, and has a roller guide part 13a for accommodating the supporting roller 15a. In addition, as described above, the guide rail 13 may be variously changed as long as it provides a path for lifting and lowering the damper panel 15.

Four support rollers 15a are provided on one side of the damper panel 15. The support roller 15a is rotatably fixed to the damper panel 15 by a roller support bracket 15b. Each of the supporting rollers 15a protrudes outward from both sides of the damper panel 15 and is inserted into the roller guide part 13a.

On the other hand, both side end surfaces of each of the damper panel 15 is provided with a fixed block 35a and the departure prevention frame 37. (The top damper panel 15 does not have the release preventing frame 37, and the bottom damper panel 15 does not have the fixing block 35a.)

In any case, the fixing block 35a is fixed to the lower side end surface of the damper panel 15, and the departure preventing frame 37 is located above the fixing block 35a.

A damper panel connection part 35 is provided between the fixed block 35a and the separation prevention frame 37. The damper panel connection part 35 serves to allow the damper panel 15 neighboring each other up and down (when the wire 25 is wound upward) to be opened to each other, but not to be opened beyond a predetermined interval. In this embodiment, the attachment chain 35c or the connection wire (39 in FIG. 5) was used for this function.

The damper panel connection part 35 is an attachment chain having a predetermined length and connected to a first connection rod 35b having an upper end thereof connected to the fixing block 35a, and a lower end of the first connection rod 35b. 35c and a second connecting rod 35d suspended from the attachment chain 35c and having a roller (35f in FIG. 3) at the bottom thereof. The roller 35f is accommodated in the separation prevention frame 37. The damper panel connection part 35 and the departure prevention frame 37 are shown in more detail in FIG. 3.

Figure 3 is a perspective view showing in more detail the damper panel connection portion and the departure prevention frame shown in FIG.

Referring to the drawings, it can be seen that in the two damper panel 15 adjacent to the bottom up and down, the fixing block 35a is provided below the side end of the upper damper panel 15. The fixing block 35a is for separating the first connection rod 35b from the damper panel 15.

As shown in FIG. 3, a first connection rod 35b is connected to the fixing block 35a by a pin 35e. Since the pin 35e is connected in this way, the swing of the first connecting rod 35b is possible. In addition, an attachment chain 35c is connected to a pin 35e at a lower end of the first connection rod 35b. The attachment chain 35c is a well-known element widely used in the field of power transmission or transmission. The second connection rod 35d is linked to the pin 35e at the lower end of the attachment chain 35c.

As a result, the damper panel connection part 35 may be shaken while suspended from the fixing block 35a (if the lower end is not fixed anywhere).

Meanwhile, the roller 35f is rotatably provided at the lower end of the second connecting rod 35d through the roller shaft 35k. The roller shaft 35k is an axis connecting the roller 35f to the second connecting rod 35d, and is perpendicular to the second connecting rod 35d. The roller 35f is clouded in the longitudinal direction of the long hole 37a as the separation distance of the upper and lower damper panels 15 is changed while being trapped inside the separation prevention frame 37.

The detachment preventing frame 37 is manufactured by bending a metal plate and has a long hole 37a extending vertically. The long hole 37a has a predetermined width and guides the lifting motion of the roller shaft 35k. In particular, since the long hole 37a is blocked upward, the roller shaft 35k does not escape to the outside of the separation prevention frame 37.

Moreover, the roller entry hole 37b is provided in the lower end part of the said long hole 37a. The roller access hole 37b is a passage provided to separate the roller 35f from the release preventing frame 37 when necessary. The roller entry hole 37b is opened by pushing the button 37d in the arrow F direction. This will be described later with reference to FIG. 4.

Figure 4 is an enlarged perspective view of the main portion of the separation prevention frame shown in FIG.

As shown in the drawing, a roller entry hole 37b having a constant diameter at the lower end of the long hole 37a is provided. The roller entry hole 37b is a hole opened toward the long hole and has an inner diameter larger than that of the roller 35f.

The roller entry hole 37b is normally blocked by the shutter 37c. The shutter 37c is a plate-like member for blocking the roller entry hole 37b and is kept in close contact with the roller entry hole 37b in a state located inside the separation prevention frame 37.

A button 37d and a spring 37e are provided to elastically close the shutter 37c to the roller access hole 37b side as described above and to separate the shutter 37c from the roller access hole 37b (if necessary).

The button 37d is pressed by the user and is connected to the shutter 37c through the connecting rod 37f. The connecting rod 37c is a rod extending through the separation prevention frame 37a and coupled to the shutter 37c inside the separation prevention frame 37. In addition, the spring 37e elastically supports the button 37d in a direction opposite to the direction of the arrow F while being supported on the outer surface of the release preventing frame 37.

Therefore, when the button 37d is pressed in the arrow F direction, the button 37d is moved in the direction in which the shutter 37c is pressed and opened from the roller entry hole 37b. Thus, while the shutter 37c is spaced apart from the roller entry hole 37b, the roller 35f trapped inside the separation prevention frame 37 can be taken out. Thus, the roller entrance hole 37b is provided in order to replace or maintain the roller 35f, for example.

FIG. 5 is a perspective view illustrating another type of connection structure for connecting each damper panel of the overhead damper door shown in FIG. 1.

The same reference numerals as the above reference numerals denote the same members having the same function.

Referring to the drawings, it can be seen that the connection wire 39 is applied as the damper panel connection part 35. The connection wire 39 is a known steel wire and determines the degree of flaring of the damper panel 15 positioned up and down. The basic function of the connection wire 39 is the same as that of the assembly of the first and second connection rods 35b and 35d and the attachment chain 35c.

The fixing block 35a is fixed to the upper damper panel 15 and the wire holder 41 is fixed to the lower damper panel 15 so that the connection wires 39 can be positioned on both sides of the damper panel 15. Is provided.

The wire holder 41 is a rectangular columnar member having an inner space for accommodating the connection wire 37, and has a wire through hole (39b in FIG. 6) at its upper end and is connected through the wire through hole 39b. The lower end of the wire 39 is received.

6 is a partial cross-sectional view for explaining the principle of the connection structure shown in FIG.

As shown in the figure, a wire through hole 39b is provided in the upper end of the wire holder 41 that provides the internal space, and the lower end of the connection wire 39 passes downward through the wire through hole 39b. (41) It is located inside. In particular, the lower end of the connection wire 39 is provided with a fixed ball (39a). The fixed ball 39a is a metal ball fixed to the lower end of the connecting wire 39, the diameter of which is larger than the wire through hole 39b.

Therefore, for example, when the lower damper panel 15 is fixed while the upper damper panel 15 is lowered, the connecting wire 39 moves in the direction of the arrow Y by the weight of the fixing ball 39a, and the connecting wire 39 ) Always stays straight.

FIG. 7 is a view illustrating a mechanism in which the overhead damper door automatically operates in a fire according to an embodiment of the present invention.

As described above, the damper panel 15 in this embodiment is in a state suspended from the shaft 19 by a wire (25 in FIG. 1). The wire 25 is not unwound or wound unless the shaft 19 is rotated while being wound on the wire drum 23. Unwinding or winding the wire 25 is made by a motor 27.

On the other hand, the motor 27 used in the present embodiment has a brake 27a therein. The brake 27a serves to fix the drive shaft of the motor. As a result, the fixing of the shaft 19 is realized by the brake 27a (since the driving shaft and the shaft 19 are connected by the chain 29). Therefore, for example, when the brake 27a is released while the damper panel 15 is raised, the damper panel 15 moves downward by its own weight to block the access passage A. The damper door of this embodiment can be used as an unmanned fire shutter using the above characteristics (the damper panel is automatically lowered when the brake is released).

To this end, a detector 51 for detecting smoke or heat is installed inside the building. The detector 51 detects smoke or heat when a fire occurs and sends it to the controller 55. When the controller 55 receives a signal from the sensing unit 51, the brake 27a in the motor 27 is released to lower the damper panel by its own weight. As such, when the fire occurs, the damper panel 15 is lowered to block the movement of the flame.

The present invention has been described in detail through specific embodiments, but the present invention is not limited to the above embodiments, and various modifications may be made by those skilled in the art within the scope of the technical idea of the present invention.

In the overhead damper door of the present invention made as described above, each unit damper panel can be opened at a predetermined gap interval while the damper door is closed, so that security and ventilation can be performed at the same time.

Claims (8)

A guide rail extending upward from the ground and spaced apart from each other in parallel to provide an access space therebetween; A plurality of damper panels supported at both ends of the guide rail and movable along the longitudinal direction of the guide rail; A damper panel connection portion interconnecting the respective damper panels up and down but having a length such that the raised damper panel can be opened from the lower damper panel when an arbitrary damper panel is raised; An opening and closing device for elevating a plurality of damper panels positioned on an upper portion of the guide rail and connected to a top damper panel through a wire and connected to a damper panel connection portion through a top damper panel; And a driving unit for driving the switchgear to allow the switchgear to wind or unwind a wire to raise or lower the damper panel. The method of claim 1, The damper panel is; An overhead damper door having a plurality of support rollers, which take a form of a square plate having a predetermined thickness and are fitted to the guide rails on both sides of the guide rail so as to roll. The method according to claim 1 or 2, The damper panel connection portion; Overhead damper door, characterized in that the chain or connecting wire which is located on both sides of the damper panel adjacent to the top and bottom fixed to the upper and lower damper panel. The method of claim 3, wherein The upper end of the chain or connection wire is provided with a first connection rod connecting the upper end of the chain or connection wire and the upper damper panel, The lower end of the chain or connection wire is an overhead damper door, characterized in that the second connection rod for connecting the lower end of the chain or connection wire and the lower damper panel is provided. The method of claim 4, wherein The lower end of the second connecting rod is rotatably installed, The lower damper panel, the upper damper door, characterized in that the separation frame is installed to accommodate the roller therein and guide the lifting movement of the roller so that the roller does not escape to the upper portion. The method of claim 5, The lower end of the second connecting rod and the roller are connected by a roller shaft, The departure prevention frame, An overhead damper door, which is fixed to both sides of a damper panel, extends vertically, and has a long hole that guides the roller shaft's lifting and lowering movement through an inner circumferential surface through the roller shaft. The method of claim 6, The separation prevention frame, the overhead damper door, characterized in that provided with a path for separating the roller from the separation prevention frame, if necessary, opening and closing shutter. The method of claim 1, The opening and closing device has a shaft installed horizontally on the top of the guide rail and having a shaft having one or more wire drums to which the wire is wound. The driving unit includes a motor incorporating a brake for rotating the shaft and fixing the shaft by an external signal, A sensing unit for detecting smoke or heat generated inside and outside the building in which the damper door is installed, and controlling the motor by receiving the detected contents from the sensing unit, but when abnormal heat or smoke is detected, release the brake to release the damper. An overhead damper door further comprising a controller that allows the door to descend by its own weight.

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