KR100842219B1 - The structure of emergency door for of screen shutter for fire proofing - Google Patents

Abstract

A self-closing slide type structure of escape door is provided to allow smooth opening and closing of the escape door, to prevent unexpected opening, and to minimize leakage of toxic gas by reinforcing airtight closing force of the escape door and supporting force in closed state. A self-closing slide type structure of escape door comprises: upper and lower support rails(10,10') established on the screen shutter in the lateral direction; multiple rollers(20) established on upper and lower marginal side of the escape door through link wires with fixed intervals; an extended coil spring(30) to provide elastic pulling force in a closing direction; a wire for extension to maintain right marginal side of the escape door to be straight; and upper and lateral side covers(50,50') with a pocket shape.

Description

Evacuation door structure of fire screen shutter {THE STRUCTURE OF EMERGENCY DOOR FOR OF SCREEN SHUTTER FOR FIRE PROOFING}

The present invention relates to an evacuation door structure of a fire screen shutter, and more specifically, to a row of support rails arranged so as to be positioned above and below the evacuation door in the width direction of the screen shutter, and to the support rails on the upper and lower sides of the evacuation door. A plurality of rollers coupled to be movable are provided, but the outermost roller at the lower side is provided with a tension coil spring for imparting an elastic pulling force to the evacuation door in the normally closed direction. When pushed, the evacuation door slides like a rail curtain, forming a corrugated passageway to form an evacuation passage. When the pulling force is released, the evacuation door is automatically opened and closed.In addition, the tension wire is fixedly installed on the right side of the evacuation door to the right side. Evacuate to keep cover in a straight line at all times so that it is possible to enter the cover quickly and accurately In order to facilitate the opening and closing of the doors, there is a pocket-type upper and side cover connected to the upper and right sides of the evacuation door to reinforce the sealing force of the evacuation door and the supporting force in the closed state, but the right side and side cover of the evacuation door It has a close means that can be adhered to each other through magnetic force inside, so that the side cover is closely adhered to the right side when the evacuation door is closed, so as to reinforce the sealing force and the supporting force additionally to prevent unauthorized opening due to the explosion pressure at the fire site and the sealing force It is to improve the reliability of the product by minimizing the outflow of toxic gas through reinforcement.

In general, fire and smoke shutters literally block smoke and endure flames, so when a fire breaks out in a building, the people who evacuate the building gain time and prevent the flames from spreading and moving across the building. In order to resist the flame for a certain time,

In the past, it was common to provide a fire prevention shutter or a flame retardant shutter separately, and if the building has only a smoke shutter, smoke and toxic gas generated in a fire are lighter than air, so they float upwards and spread out on the ceiling. In order to prevent this, by installing a smoke-controlled boundary wall in the middle of the ceiling, the toxic gas can be trapped for a while to reduce the rate at which smoke and toxic gases spread, but the smoke can be prevented for a while, but the flame cannot spread to the entire building. Not very practical,

On the other hand, fire doors or fire shutters are made of thick steel because they have to withstand high temperatures for a long time. When a smoke sensor or a heat sensor detects a fire, it sends this signal to a fire detection interlock controller. In principle, if the fire shutter is closed too early, the interlocking controller will close after the fire detection has given enough time to evacuate everyone. In order to prevent this, a separate evacuation door may be installed on the side of the fire shutter. However, the cost of the evacuation door is added to the construction of the evacuation door, which is not properly observed.

In addition, steel fire doors or fire shutters are designed to be used repeatedly, but when used several times, deformation occurs due to the high temperature of the flames, causing gaps in the closed areas, resulting in unstable opening and closing of flames or smoke. There are drawbacks to this.

In view of the above problems, in recent years, many flame retardant screen shutters have been constructed using flame retardant fabrics that are easily manufactured and inexpensive, but are easily manufactured and inexpensive. It is essential to install evacuation doors based on the shutter installation criteria. To this end, existing flame-retardant screen shutters are known to have many structures for opening and closing them.

Most of these structures cut off the middle of the screen shutter to the bottom with a vertical "A" to form a rectangular evacuation door, and then install a support bar that is hinged to the top and bottom edges of the evacuation door and the screen shutter. It is structured to open and close while rotating on the basis of the part.The upper and side edges of the evacuation door are provided with cover pieces to reinforce the sealing force and to prevent the door from being opened in the event of explosion pressure at the fire site. It was to have a structure that is provided with elastic tension means such as a spring on both sides of the support bar to the hinge so that the evacuation door can be automatically closed.

However, the following problems were exposed in the conventional hinged retractable evacuation door as described above.

⊙ Since the opening of the evacuation door is opened and closed by rotating about one axis, the occupied space required for operation becomes large, and if there is an obstacle in the operating range, there is a problem that it becomes difficult to quickly and easily evacuate the evacuation door.

⊙ Also, the cover piece covering the edge of the evacuation door must be attached to the shutter in the form of a simple sheet because the cover piece should be opened simultaneously in the same direction when the evacuation door is opened. Without the fact that the cover piece is located in close proximity, without affecting the blocking of the opening pressure hardly, the sealing force of the evacuation door and the resistance to the opening pressure are insufficient, and thus the use effect is lowered.

⊙ Also, since it is composed only of the flexible fabric itself without any supporting means to act as a skeleton on the right side of the evacuation door, the shape retaining power of the middle part of the evacuation door becomes weak, so when the door is opened and closed, the middle of the door deforms or deforms. As a result of the difference in the opening speed of the lower side, which is twisted diagonally, deformation pressure is applied to the hinge connecting the bar, which increases the failure rate and shortens the service life.

⊙ In addition, the closing speed of the evacuation door is delayed and the closing state becomes incomplete due to the fluctuation and torsion of the evacuation door.

⊙ In addition, evacuation door tension members and top cover, side cover, tension hinges, and tension springs are applied to impart a permanent pull in the closing direction for the purpose of reinforcing the closing force of the evacuation door. The closing method using the elastic force applied to the hinge side of the door, the closing method using the cover of the upper and side surfaces, or the closing method of pulling the leading edge of the door in the closing direction by using the tension spring can be applied to the usual external pressure. However, when a large explosion occurs in the place of fire, and a large pressure is generated through the movement of air, it is not supported and is easily opened, thereby causing a problem of enabling the transfer of toxic gas or flame.

Therefore, there is an urgent need for evacuation doors having a structure that can be fully opened by human force inside the screen shutter, and the door is automatically closed after the escape and the door can not be opened even under a large pressure.

The present invention is to solve and complement the problems caused by the existing structure as described above,

The object of the present invention is to fold in a corrugated form while the evacuation door slides like a rail curtain to form an evacuation passage and to be opened and closed automatically when the pulling force is released, so that the side of the evacuation door is always kept in a flat straight line quickly and accurately It is possible to enter the cover to facilitate the opening and closing of the evacuation door, and also to reinforce the sealing force of the evacuation door and the supporting force in the closed state through the pocket-type cover fixed at the end. Fireproof screen shutter that can improve the reliability of the product by minimizing the leakage of toxic gas through the suppression of unauthorized opening due to the explosion pressure at the fire site and the reinforcement of the sealing force by providing a close contact with the means to strengthen the sealing force and the supporting force. It is in providing an evacuation door structure.

The present invention to achieve the above object,

Roll up a set of support rails positioned so as to be positioned above and below the evacuation door in the width direction of the screen shutter, and have a plurality of rollers coupled to the support rails at the upper and lower sides of the evacuation door, but having the outermost roller at the lower side. In order to provide the evacuation door with a tension coil spring to give the elastic pulling force in the normally closed direction, it slides like a rail curtain to fold in a corrugated form to form an evacuation passage and automatically open and close when the pulling force is released. It is characterized by.

In another aspect, the present invention is characterized in that the tension wire is fixedly installed on the right side of the evacuation door to maintain the right side of the evacuation door in a straight line at all times to quickly and accurately enter the cover.

In addition, the present invention is characterized by having a top and side cover of the pocket type connected to one of the upper and right sides of the evacuation door to reinforce the sealing force of the evacuation door and the supporting force in the closed state.

In addition, the present invention has a close means that can be bonded to the inside of the right side and the side cover of the evacuation door by mutual magnetic force so that the side cover is in close contact with the right side when the evacuation door is closed so that the additional sealing force and support force can be reinforced. It is characterized by.

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

In the present invention as described above, when the evacuation of the evacuator pushes the handle sideways, the evacuation door slides like a rail curtain to form a corrugated passageway to form a evacuation passage, and when the pulling force is released, it is automatically unfolded and closed around the evacuation door. Even if there is an obstacle, it can be opened and closed smoothly to improve the evacuation effect,

In addition, when the evacuation door is opened through the tension wire, the pulling force is evenly applied to the upper and lower sides of the right side, and the right side is always kept in a flat straight line so that it is possible to enter the cover quickly and accurately, so that the evacuation door can be opened and closed smoothly. Will be

In addition, the upper and side covers of the pocket type are in close contact with each other to reinforce the sealing force of the evacuation door and the supporting force in the closed state, thereby minimizing the release of toxic gas through the suppression of unauthorized opening due to the explosion pressure at the fire site and the strengthening of the sealing force. It will have the effect of improving the reliability of the product.

1 is a front view showing an example of the configuration of the present invention, Figure 2 is a front view showing the operation structure of the evacuation door by cutting a portion of the upper cover and the side cover applied to the present invention, Figure 4 is By showing a separated perspective view showing the configuration of the roller and the support rail applied to the invention,

The present invention is a known structure in which the middle of the width of the screen shutter (1) configured to be wound around the winding pipe (1 ') is cut into a "b" shape to provide a rectangular evacuation door (2),

Upper and lower support rails (10) (10 ') fixed to the screen shutter (1) in the width direction so as to be located close to the upper and lower sides of the evacuation door (2);

A plurality of rollers installed at upper and lower sides of the evacuation door 2 at regular intervals through connecting wires 21 and slidably coupled to the upper and lower support rails 10 and 10 ′ ( 20);

Both ends are fixed to one side end of the outermost end roller 20 'and the lower support rail 10' of the lower side of the evacuation door 2 and give the evacuation door 2 an elastic pulling force in the normally closed direction. Tensile coil spring 30 for;
A tensioning wire 40 installed at both ends of the right side of the evacuation door 2 in a longitudinal direction and for guiding the right side of the evacuation door in a straight line;

The upper side and the right side of the evacuation door (2) is provided close to each inner side constitutes the inlet 51 of the open state, and each outer side of the pocket type upper and side covers (sealed and fixed to the shutter 1) 50) 50 ';

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Each of the right side of the evacuation door (2) and the inside of the side cover (50 ') is configured to include a close means (60) for close contact with the right side of the side cover (50') when closing the evacuation door, respectively It is characterized by.

The close means 60 is a pair of magnets 61 fixed to the front and rear of the right side of the evacuation door 2, and fixed to the interior of the side cover 50 'and selectively magnets through the magnetic force It consists of an elastic piece 62 of "Ｖ" shape detachably attached to 61. As shown in FIG.

On the other hand, the lower side of the evacuation door (2), the rear side as shown in Figure 6 to configure the lower cover 70 to cover the lower support rail (10 '), and the lower side of the evacuation door that can be exposed to the outside By concealing the connecting wire 21 to keep the aesthetics concise, and to close the gap between the lower side of the evacuation door 2 and the lower support rail (10 ') to prevent the leakage of toxic gas. It has a function.

8 is a front view illustrating a state in which the opening assisting means 80 is applied to the evacuation door 2 as another configuration example of the present invention.
The upper and lower support rails 10 and 10 'are provided with a pair of upper and lower guide rollers 81 and 81' which are positioned at both ends of the upper and lower sides of the evacuation door 2, but a pair of upper guides is provided. The roller 81 has an upper end opening and closing auxiliary wire 82 fixed to one end of the front roller 20 'at which the evacuation door 2 is opened, and the other end fixed to the upper end of the tension wire 40. Is wound around and connected to one set of lower guide rollers 81 ′ at one end of the front roller 21 ′ at which the evacuation door 2 is opened, and the other end of which is the lower end of the tension wire 40. To be connected to the lower opening and closing auxiliary wire (82 ') is fixed to,
Holding the handle 90 and opening the evacuation door (2) in the opening direction, while the tension wire (40) is moved in the opening direction by the external force, the upper, lower fixed opening and closing auxiliary wire (82) The other end of the 82 'is moved inward by riding the upper and lower guide rollers 81 and 81', and the one end of the opposite side is pulled out so that the upper and lower rollers 20 and 20 'fixed to this are opened. The evacuation door (2) is folded in turn to form an evacuation passage while being pulled in the direction,
As in the opening operation in FIG. 2, the front roller is dragged and moved by only the moving force of the tensioning wire 40 without a separate moving aid, so that a pulling force is generated in a diagonal direction instead of a horizontal direction, thereby opening the operation. Compared to the less smooth one, in the present invention, when the tension wire 40 is pulled, a slight diagonal pulling force is generated at the front roller, but one end of the upper and lower opening and closing auxiliary wires 82 and 82 'is pulled. By pulling the front rollers 20 and 20 'in the transverse direction, the evacuation door 2 can be opened more smoothly.

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※ Unexplained code in the drawing ※

90 shows the handle which is comprised in an evacuation door.

Referring to the operation of the present invention configured as described above in detail as follows.

In the above, the upper and lower support rails 10 and 10 ′ serve as a weight body for keeping the screen shutter 1 taut downward and serve as a rail for slidably sliding the evacuation door 2. It is appropriate that the material is made of a metal material having a proper weight and hardly deformed.

The connection wire 21 and the tension wire 40 are configured using a steel wire having excellent heat resistance and strength.

In addition, the roller 20 has a structure in which the roller member is rotatably coupled to both ends of the intermediate member to which the connection wire 21 is integrally connected and fixed as shown in FIGS. 4 to 6.

The other end of each connection wire 21 is fixed to the roller 20, the other end can be directly fixed to the upper and lower sides of the evacuation door, but in order to prevent damage or deformation of the fixed portion, a separate reinforcement support piece (B) ) Is fixed to this reinforcing support piece (B).

In addition, the tension wire 40 is the right side of the evacuation door, both ends of the connection wire 21 or the reinforcing support piece (B) fixedly installed at the bottom through the welding or separate connector It is configured to be integrally connected but pulled up and down in the longitudinal direction to maintain a straight line so that when the evacuation door 2 is closed, the right side of the evacuation door 2 can be quickly and accurately entered into the cover. It is suitable to install the entire dragon wire 40 so as to be aesthetically concealed, and the handle 80 is installed at an appropriate height so as not to be inconvenient in consideration of the average height of the evacuator.

On the other hand, the close means 60 is shown in the figure applied as a single number in the middle of the evacuation door, but as necessary, it is possible to install a plurality in the longitudinal direction as well as the tension coil spring 30 is also shown to be applied only to the lower side of the evacuation door. If necessary, it can be applied to both the upper side, the upper side, and the lower side of the evacuation door.

The elastic piece 62 is composed of a thin iron piece that is easy to deform so that it can be easily attached to the magnet 61, and when the magnetic force is released, the elastic piece 62 is automatically returned to its original shape so as to maintain the side cover 50 'in an open state. It is suitable to configure the material having.

In the present invention as described above, when a fire occurs in a building, the rated power is automatically cut off by a heat detector or a combustion detector attached to the ceiling, and a fire screen is installed in each area of the building ceiling while the emergency power is supplied to the fire. Will block the diffusion.

1 to 2 is a state in which the evacuation door (2) is blocked in a state where the fire screen shutter of the present invention is lowered,

Meanwhile, FIG. 1 shows a state in which the upper cover 50 and the side cover 50 'are covered, and FIG. 2 shows a portion of the upper cover 50 and the side cover 50' for convenience so that the hidden portion is clearly shown. As showing the state where the evacuation door (2) is closed in the state,

The elastic door in the closing direction is continuously applied to the evacuation door (2) through the tension coil spring 30, the right side of the evacuation door (2) is the side cover in the fully extended state It completely enters the inside of 50 'and the elastic piece 62 of the side cover 50' is in close contact with the magnet 61 by magnetic force as shown in FIG. 7 (b).

In addition to the pulling force of the tension coil spring 30, the evacuation door 2 closed as described above is additionally fitted in the side cover 50 'of the pocket type in which the upper part and the lower part are blocked, and a separate close means 60. Through the side cover 50 'through the more effective to seal the effect, and the upper side of the evacuation door is always located in the upper cover 50 as shown in Figure 5 while maintaining the covered state excellent sealing It is to keep the toxic gas in the fire area, soot, flames, etc. to prevent leakage to the evacuation area.

If the pressure caused by the explosion occurs in the fire site, the opening direction of the evacuation door 2 is orthogonal to the direction in which the explosion pressure is applied. The evacuation door can be prevented from opening.

When the evacuation door in the closed state of the evacuation door (2) in order to escape from the fire-generating area, as shown in Figure 3 to grab the handle 90 of the evacuation door (2) forcibly pushed in the direction of the arrow, the tension by the pulling force When the coil spring 30 is forcibly tensioned and the joint between the magnet 61 and the elastic piece 62 is released, the right side of the evacuation door 2 is released from the side cover 50 'and moved in the opening direction. The rollers 20 are gathered by moving in the support rails 10 and 10 'and the evacuation doors 2 are folded to the left as shown in the drawing, and the evacuation passage is provided so that the evacuator can easily escape. Will be.
On the other hand, the lower edge portion of the evacuation door (2) in addition to the lower cover 70 is sealed in relation to the upper edge portion and the folded form or folding process may not be smooth, but the lower cover 70 and the evacuation door (2) Since the same folding is composed of free flame retardant fabric, there is no problem in folding and providing an evacuation passage.
On the other hand, when the escape of the evacuation is completed through the open evacuation door (2) and there is no opening pressure applied to the evacuation door (2), a strong force in the closing direction is given through the pulling force of the tension coil spring (30) and rapidly. While moving linearly in the closing direction to enter the interior of the side cover 50 'as shown in Fig. 7 (a) and the elastic piece 62 is in close contact with the magnet 61 in the state enters the side cover 50 as the initial ') Can be packed inside.
At this time, the tension wire 40 is stretched and installed in a straight line to keep the right side of the evacuation door in a straight line so that the right side of the evacuation door can be quickly and accurately entered into the side cover (50 ').

Meanwhile, as shown in FIG. 6, if the lower cover 70 is commonly configured in front and rear of the evacuation door 2, and additionally, the handle 90 is configured, the inside and the outside of the screen shutter can be used for the same purpose without distinction. By doing so, the scope of application can be extended and the convenience of handling and the use effect can be improved.

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In the above, one 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 skilled in the art belong to the scope of the present invention Of course.

1 is a front view showing an example of the configuration of the present invention.

Figure 2 is an exemplary front view showing the operation structure of the evacuation door by cutting a portion of the upper cover and the side cover applied to the present invention.

Figure 3 is a front view illustrating the state of opening and leaving the evacuation door of the present invention.

Figure 4 is an exploded perspective view showing the configuration of the roller and the support rail applied to the present invention.

5 is an enlarged cross-sectional view taken along the line A-A of FIG.

6 is an enlarged cross-sectional view taken along line B-B of FIG. 2.

Figure 7 (a) is an exemplary cross-sectional view showing a state before the right side of the evacuation door enters the inside of the side cover.

Figure 7 (b) is an enlarged cross-sectional view of the C-C line of Figure 2, a cross-sectional view showing a state in which the right side of the evacuation door is in close contact with the inside of the side cover.

8 is an exemplary front view showing another configuration example of the present invention.

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

1: screen shutter 1 ': winding tube

2: Evacuation door 10,10 ': Upper, lower support rail

20: Roller 30: Tensile coil spring

40: Tensile wire 50: Upper cover

50 ': Side cover 60: Close contact

61: magnet 62: elasticity

70: lower cover 80: opening aid

81,81 ': Upper and lower guide rollers 82,82': Upper and lower opening and closing wires

Claims (7)

In the known structure in which the middle of the width of the screen shutter 1, which is configured to be wound around the winding pipe 1 ', is cut out in the shape of a letter "A" to have a rectangular evacuation door 2, Upper and lower support rails (10) (10 ') fixed to the screen shutter (1) in the width direction so as to be located close to the upper and lower sides of the evacuation door (2); A plurality of rollers installed at upper and lower sides of the evacuation door 2 at regular intervals through connecting wires 21 and slidably coupled to the upper and lower support rails 10 and 10 ′ ( 20); Both ends are fixed to one side end of the outermost end roller 20 'and the lower support rail 10' of the lower side of the evacuation door 2 and give the evacuation door 2 an elastic pulling force in the normally closed direction. Tensile coil spring 30 for; A tensioning wire 40 installed at both ends of the right side of the evacuation door 2 in a longitudinal direction and for guiding the right side of the evacuation door in a straight line; The upper side and the right side of the evacuation door (2) is provided close to each inner side constitutes the inlet 51 of the open state, and each outer side of the pocket type upper and side covers (sealed and fixed to the shutter 1) 50) (50 '); comprising the evacuation door structure of the fire screen shutter, characterized in that comprising each. According to claim 1, wherein the right side of the evacuation door (2) and the inside of the side cover (50 '), respectively, the close means 60 for close contact with the right side of the side cover (50') when the evacuation door is closed Evacuation door structure of the fire screen shutter, characterized in that additional configuration. The method of claim 1, wherein the lower side of the evacuation door (2) is configured to be attached to cover the lower support rail (10 ') to seal the gap between the lower side of the evacuation door (2) and the lower support rail (10'). Evacuation door structure of the fire screen shutter, characterized in that the lower cover 70 for blocking. 4. The fire screen shutter according to claim 3, wherein the lower cover 70 is formed in common on the front and the rear of the evacuation door 2 so that both sides of the evacuation door 2 can be used for the same purpose. Evacuation door structure. 2. The opening aiding means (80) according to claim 1, wherein the opening assistance means (80) is applied to the front and lower rollers (20, 20 ') at the front of each of which is opened on the upper and lower sides of the evacuation door (2). Evacuation door structure of the fire screen shutter, characterized in that the installation. The method of claim 2, wherein the close means 60, A pair of magnets 61 fixed to the front and rear sides of the right side of the evacuation door 2 are fixed to the inside of the side cover 50 'and selectively detachably attached to the magnets 61 through magnetic force. Evacuation door structure of the fire screen shutter characterized in that composed of "Ｖ" shaped elastic piece 62. The method of claim 5, wherein the opening assistance means 80, A pair of upper and lower guide rollers 81 and 81 'which are positioned at both ends of the upper and lower sides of the evacuation door 2 on the upper and lower support rails 10 and 10', In the state wound in the upper, lower guide rollers (81, 81 '), one end is fixed to the foremost roller to start the opening and the other end is fixed to the upper and lower ends of the tension wire 40, respectively, Evacuation door structure of the fire prevention screen shutter, characterized in that consisting of the lower opening and closing auxiliary wire (82) (82 ').

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