KR20090002461U - Exit door of screen fire shutter - Google Patents

Abstract

The present invention relates to an evacuation door of a screen fire shutter having a mobile hanger device and a close contact spring device, the roller (3) is installed in the head box and has an uneven space, and elevating the screen main body; Screen main stream (1) which is a fire-resistant spring that can be evacuated to a safe place through the evacuation opening 12 provided at the same time forming one fire film; Equipped with a cover thin plate (4) coupled to the upper end of the evacuation door plate and is integrally coupled to one side of the evacuation opening formed on the screen by sewing, the evacuation door plate (2) that can be opened and closed by the sewing line 16 of the one end )and; Adhesion band plates 14 and 22 coupled to each surface by sewing the screen main body and the evacuation door plate; A starter hanger (5) fastened to the circumferentially curved outer periphery (31) and adapted to smoothly open and close the evacuation door by adjusting the stroke of the hanger bar (51); A fixed hanger bar 6 for preventing sagging of the upper part of the evacuation door; It consists of a close-up spring device that closes the upper part of the evacuation door plate to the screen main body, prevents sagging or gap of the evacuation door plate to improve the flame retardancy of the screen fire shutter, the stroke generation and the thickness difference of the hanger bar By minimizing the occurrence, it is possible to achieve the effect of smoothly opening and closing the lifting and evacuation door.

Screen fire shutter, evacuation opening, evacuation door, hanger bar, close contact strip, close contact spring device

Description

Evacuation Door of Screen Fire Shutter {Exit door of screen fire shutter}

1 is a perspective view showing an evacuation door that is the subject of the present invention coupled to the screen.

Figure 2 is a perspective view showing a state in which the evacuation door of the present disclosure integrated into the screen main body opened.

Figure 3 is a Y-Y cross-sectional view showing a screen main body combined with the evacuation door of Figure 1;

Figure 4 is a perspective view showing a state in which the evacuation door plate of the present invention is coupled to the mobile hanger device and the contact spring device.

FIG. 5 is an exploded perspective view showing a maneuvering hanger and a fixed hanger bar and a close spring device forming the main portion of an evacuation door of the screen fire shutter.

6 is a partial cutaway view showing the close spring device of FIG.

Figure 7 is a cross-sectional view X-X for explaining the operating state of the close contact band plate of the present invention for wind pressure.

8 is an explanatory view showing the operating state of the close contact plate coupled to only the evacuation door plate of the conventional screen fire shutter with respect to the wind pressure.

<Explanation of Signs of Major Parts of Drawings>

1.Screen Main 11.Bottom T Bar

12. Evacuation openings 14,22. Adhesive board

15. Protective curtain 16. Seam

2. Evacuation Door 21. Evacuation Door Bottom Bar

3. Roller 31. Outer Diameter Pipe

32,321. Protruding bar 34. Roller pipe

35. Shaft 36. Bolt

37. Uneven space 4. Cover plate

41. Washer 5. Starting hanger

51.Hanger Bars 52.Rings

53. Torsion coil spring 54. Swivel ring

55. Stop ring 56,561. Spring End Insertion Holes

6. Fixed hanger bar 7. Tight spring device

71.Wire 72.Cover Plate

73. Tension Spring 74. Pulley

75. Fixed shaft 76. Fixed pin

8,81. Guide plate 9,91,92. wind pressure

The present invention relates to an evacuation door of a screen fire shutter using a fireproof cloth, and more particularly to an evacuation door of a screen fire shutter with a mobile hanger, a fixed hanger bar and a close spring device.

In the screen fire shutter using a fireproof cloth, the evacuation door is an element of the screen fire shutter that serves to form and close the evacuation opening. One side of the screen is sewn and integrated into the screen main body. Spring device is built in the screen fabric or the protective curtain to be in close contact with the screen fabric in a tight state.

This spring device is limited by the outer diameter and wire diameter of the spring, which is closely related to the tension and stroke of the spring due to the thin thickness of the screen main body, and the wire coupled to the spring penetrates the screen main body to provide a certain angle to the upper part of the evacuation door. It is a structure that is held together.

In addition, when installing a spring device that simultaneously performs the function of hanging the upper part of the evacuation door by using the spring's elastic force and suspending it, the evacuation is performed by pulling the spring so that the force greater than the weight of the evacuation door is generated. There is a disadvantage that the elastic limit of the spring can be easily reached by the force applied to the evacuation door during self-evacuation.

Therefore, when the spring of the spring device exceeds the elastic limit, the obstacle of opening and closing of the evacuation door occurs. In the event of fire, the spring exposed to the flame accompanied by high heat and wind pressure loses its elasticity. The phenomenon that the spring is stretched by losing wind pressure occurs,

Due to this, the upper end of the evacuation door is drooped and the adhesion of the evacuation door is drastically deteriorated, so that the flame retardant function and the flame retardant function of the screen fire shutter are deteriorated rapidly and there is a problem that the spring device needs to be replaced.

As shown in FIG. 8, in the conventional evacuation door of the screen fire shutter, the adhesion degree by wind pressure is attached only to the evacuation door so that the degree of adhesion due to wind pressure is increased than the evacuation door of the screen discharge shutter without the adhesion band plate. ,

Effective blocking of the wind pressure 92 applied to the evacuation opening portion from the outside of the evacuation door is made, but on the contrary, there is a problem that the blocking force against smoke and flame accompanied with the wind pressure 91 approaching through the evacuation opening is weakened.

The present invention, while solving the conventional problems, including the evacuation door to the screen main fabric additionally close contact with the longitudinal band by sewing,

The spring device that performs the hanger function to pull the evacuation door to the upper part is changed from the flame to the structure that is connected to the roller with high safety from the flame.

An object of the present invention is to provide an evacuation door of a screen shutter that prevents sagging of the upper part of the evacuation door, improves the degree of adhesion of the evacuation door, and facilitates the opening and closing of the evacuation door.

The present invention for achieving the above object is a roller (3) installed inside the head box to prevent foreign matter inflow and block the flame, and to receive the rotational force from the driving motor to lift the screen main body;

The upper end is coupled to the circumferential curved surface of the roller, the lower end is coupled to the lower T bar, and the left and right ends are inserted into the guide rails to form one fire barrier and the evacuation opening part 12 provided at the same time to the safety place to the safe place. Screen main stream (1) which is an evacuated fireproof spring;

It is coupled to the upper end of the evacuation door plate to facilitate the engagement of the hanger bar, and provided with a cover thin plate (4) to improve the degree of adhesion by preventing the upper end of the evacuation door plate, the bottom is coupled to the evacuation door lower bar 21 And one side end is integrated by combining with one side of the evacuation opening formed on the screen main fabric by sewing, and opening and closing is possible with the sewing line 16 as an axis, and when the closure is a fireproof fabric that forms a fireproof film together with the screen main fabric A door plate 2;

When the closed evacuation door plate is in close contact with the screen main fabric, the screen main body and the evacuation door plate are sewn on each side where the screen main body and the evacuation door plate are in contact with each other so as to be parallel to each other so as to be able to improve the retardation and flame retardant function of the evacuation door board. Adhesion band plates 14 and 22 which are fireproof cloths;

A fastening hanger device which is fastened to the circumferentially curved surface of the outer diameter pipe 31 of the roller and pulls the evacuation door plate with a constant force to maintain a flat state, and at the same time adjusts the stroke of the hanger bar to smoothly open and close the evacuation door plate. )Wow;

A fixed hanger bar (6) to prevent wrinkles and sag from occurring at the upper end of the evacuation door plate and to assist the starter hanger;

Characterized in that it consists of a close spring device (7) in close contact with the center of the upper end of the evacuation door plate.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

1 and 2 is a perspective view showing a state in which the evacuation door is integrated with the screen main body is integrated and the evacuation door is opened at a predetermined angle, Figure 3 is a screen main combined with the evacuation door plate YY section view.

The screen main fabric 1, as shown in Figure 1, 2 and 3, the upper end is firmly coupled to the circumferential curved surface of the roller using a metal fixing band plate 17, and to the guide rail by wind pressure Bolts 13 which prevents both ends of the inserted screen main body is separated from each other is coupled to both ends, the lower end is coupled to the lower T bar 11 of a constant weight, and provided with an evacuation opening 12 formed in the center one To form a fire protection film, the close-up band 14 is adjacent to the top and one end of the evacuation opening portion and the contact surface of the evacuation door contacted laterally, the flame is directly contacted to block the direct contact of the evacuation opening It characterized in that it comprises a protective curtain (15) for protecting the portion of the screen and the guide plate (8,81) coupled.

The evacuation door plate (2) is a rectangular fire-resistant cloth having a larger area than the evacuation opening part (12) formed in the screen main body, one side end is sewn to one side of the evacuation opening part is integrally coupled to the screen main body, the strength of the evacuation door plate In order to maintain the upper end and the other end is welded with the wire embedded, the lower end is coupled to the evacuation door lower bar (21) having a hinge device and a lock device, the one end sewing line 16 on the axis It is possible to open and close by the angular arc movement, the evacuation port cover is printed on one side, the close-up band 22 by the sewing on the side and top of one side of the evacuation door plate in contact with the screen main body is characterized in that the longitudinal and transverse coupling .

As shown in Figures 4 and 5, the roller (3), the upper end portion of the screen original is coupled to the evacuation door plate is coupled to the circumferential surface with the fixing band plate 17, the shaft protruding at both ends ( 35) is supported in a rotatable state inside the shutter box, and is an element of the screen fire shutter which is lifted by the main screen by receiving the rotational power from the electric motor.

However, when the screen original is unbalanced and rolled up due to the thickness difference generated at the part where the evacuation door is combined and the part that is not wound when the screen base combined with the evacuation door is wound up, the screen movement of the screen main is not smooth. Rather, the lower T-bar 11 rises to the inclined state, which may cause damage to the screen original or a failure of the screen fire shutter.

Therefore, the roller 3 for minimizing the difference in the thickness of the screen original generated by the combination of the evacuation door plate can be implemented by having a space for introducing a thick evacuation door plate other than the screen original;

To this end, between the left and right roller pipes 34, the outer diameter pipe 31 having a diameter smaller than the diameter of the roller pipe and larger than the width of the evacuation door plate is combined to form a concentric circle, whereby the roller pipe 34 and the outer diameter are combined. Uneven space 37 is formed by the difference in the diameter of the pipe.

The uneven space is when the screen main body is rolled and wound on the roller, the evacuation door plate coupled to the screen main body is introduced into the uneven space to minimize the difference in thickness.

It is separated so that the contact spring device is installed and integrated with the circumferential curved surface of the outer diameter pipe, and the protrusion bars 32 and 321 having the same height as the circumferential curved surface of the roller pipe have the upper end of the screen main body without interfering with the formed uneven space. It serves to fasten to the roller while leveling.

This outer diameter pipe 31 is provided with a female screw 33 formed to fasten the ring 52 on the circumferential surface.

FIG. 3 is a cross-sectional view of the screen cloth cut in the longitudinal direction (Y-Y), and FIG. 7 is a cross-sectional view of the screen cloth cut in the horizontal direction (X-X) to explain the operating state of the close contact plate against the wind pressure.

The fire-resistant cloth close band 14, 22 is a key element for implementing the function of the evacuation door plate to close the evacuation opening to form a single fire protection film with the screen main body, Figures 2, 3, 4 and 7 As shown in the figure, when exposed directly to the wind pressure generated by the fire, the end of the contact band swells and adheres to one side of the screen main or the evacuation door plate, thereby forming a gap formed between the screen main and the evacuation door plate generated by the wind pressure. Blocking, the adhesion increases in proportion to the wind pressure, the wind pressure does not pass directly, can be obtained by the effect of passing back to the jig jig has the excellent wind pressure blocking effect.

Therefore, in order to activate such a feature, the contact band boards 14 and 22 coupled horizontally and longitudinally to the respective surfaces of the screen main fabric and the evacuation door that are in contact with each other are sewn in a straight line with the centers of the band boards having a constant width. Maintain parallelism at constant intervals;

In order to operate sensitively to the wind pressure, the close contact band plate 14 is coupled to the longitudinal side and the side by sewing on the portion adjacent to the upper end and one side end of the evacuation opening of one side of the screen main stream; The close contact band plate 22 coupled to one surface of the evacuation door plate which is in contact with the screen main body is characterized in that the upper and one side end portion of the evacuation door plate is sewn longitudinally and laterally by sewing.

Therefore, as shown in FIG. 7, if the contact band plates 14 and 22 maintaining a constant interval and parallel to each other explain the operating state with respect to the wind pressure;

A certain wind pressure (9) is applied to the screen main spring and evacuation door plate, and at the same time through the evacuation opening, the wind pressure (91) introduced into the gap between the screen main spring and the evacuation door board with smoke and flame, or outside the smoke and flame While the blocking effect is excellent against the accompanying wind pressure 93;

As shown in Fig. 8, in the case of the conventional screen fire shutter having a close contact plate only in the evacuation door, the degree of adhesion can be increased compared to the screen fire shutter without a close contact plate at all, thereby improving the flame retardant and flame retardant openings. It has a weak problem against the wind pressure 92 is applied to the gap through the through.

As shown in Figs. 4 and 5, the maneuvering hanger 5 forming the main part of the present invention is to generate a stroke of the hanger bar while performing a hanger function of raising the corner of the evacuation door upwards. ;

Using a plurality of holes and holes drilled at a certain angle on the circumferential surface to adjust the pressure of the spring, rotate the ring at a certain angle with a wrench to adjust the pressure of the torsion coil spring and bolt to the female thread that matches the hole. A ring 52 which is coupled to the circumferential curved surface of the outer diameter pipe by inserting and tightening) and has a spring end insertion hole 55 perforated at one end thereof;

It is installed on the circumferential curved surface of the alienated diameter pipe in a rotatable state spaced apart from the ring, and a spring end insertion hole 561 is drilled in one end, and the hanger fastened to the circumferential surface by converting the elastic force of the torsion coil spring into rotational force. A rotary ring 54 for transmitting to the bar;

Torsion is installed between the ring and the rotary ring, and both ends of the spring bent at right angles are inserted into the rotary ring and the holes (56,561) perforated in the ring cross-section to generate a torsional elastic force which can be converted into rotational force through the rotary ring. A coil spring 53;

A stop ring 55 welded to the circumferential surface of the outer diameter pipe in contact with the rotary ring to prevent deviation of the starting position of the rotary ring;

It is coupled to the circumferential surface of the rotary ring 54 while keeping the length corresponding to the stroke, and the other end is covered by the washer 41 and the rivet through the slit hole drilled in the guide plate 8. It is coupled to the thin plate 4 to convert the rotational force of the spring device into a vertical reciprocating motion to lift the evacuation door upwards and to release it by a constant force exerted when the evacuation door plate is opened to create a stroke. A hanger bar 51 which rewinds;

A guide plate coupled to one surface of the upper screen main fabric at the corner of the evacuation door plate and smoothly moving up and down the hanger bar that penetrates the perforated slit hole, and guides the evacuation door plate to be pulled upward in close contact with the screen main fabric. It is characterized by consisting of (8).

The hanger bar 51 is a metal thin plate having a constant width and excellent in elasticity of 0.4 mm or less in thickness, which minimizes the thickness difference when the screen main body is rolled up on the roller, and easily disperses the force due to surface contact. There is no damage to the fibrous tissue, characterized in that it has a hole perforated at both ends to be fastened using rivets and bolts.

In addition, the present invention is provided with a fixed hanger bar and a close spring device in addition to the start hanger device to prevent the deflection of the upper center of the evacuation door plate and to improve the adhesion and at the same time to assist the operation of the start hanger device. It is done.

As shown in Figure 4 and 5, the fixed hanger bar (6), if the edge of the evacuation door plate hanger by the hanger bar of the mobile hanger device, the upper end of the evacuation door plate sag caused by its own weight When the screen is lifted, the evacuation door plate is wrinkled, which causes the problem of deteriorating the shutter's smoke retardant function.

In order to prevent this, one end in the vertical direction at the 1/3 point of the width of the evacuation door plate is coupled to the cover plate 4 by using a washer and rivet, the other end is coupled to one surface of the protrusion bar 321, The same material as the hanger bar is characterized in that the thin metal plate of 0.4mm or less.

FIG. 5 is an exploded perspective view illustrating a maneuvering hanger device, a fixed hanger bar, and a close contact spring device forming a main portion of an evacuation door of the screen fire shutter, which is the subject of the present disclosure, and FIG. 6 is a partial cutaway view showing the close contact device of FIG.

As shown in Figs. 5 and 6, the close contact spring device 7, which forms the main part of the present invention together with the starter hanger,

A fixing pin 76 inserted at one end to couple and fix the built-in tension spring, and a shaft 75 to couple the pulley formed with the U-shaped groove in a rotatable state, and a protrusion bar 32 and A cover plate 72 having a 'c' shape having the same width and the same height as the protrusion bar so as to be coupled between the protrusion bars 321;

It is built in the cover plate and one end is coupled to the fixing pin and the other end is coupled to the wire, the tension spring (73) to always pull the center of the evacuation door plate with a constant force through the wire as a medium to create a close contact and stroke ;

One end is a tension spring, the other end is a wire 71 through the guide plate 81 is coupled to the cover thin plate 4 using washers and rivets to transfer the tensile force of the tension spring to the evacuation door plate;

A pulley 74 which is coupled to the fixed shaft 75 integrated with the cover plate in a rotatable state, thereby converting the linear reciprocating direction of the wire at a right angle, and having a U-shaped groove formed on the circumferential surface to prevent wire detachment; ;

It is fastened to one surface of the screen main body spaced a certain distance from the upper part of the evacuation door, and the wire penetrates the hole to facilitate the up and down reciprocating movement, and the upper part of the evacuation door plate pulled by the wire is in close contact with one side of the screen main Characterized in that composed of a guide plate (81).

Looking at the effect of the evacuation door of the screen fire shutter according to the present invention, the hanger bar using a metal thin plate, and the structure of the combination of the hanger device and the contact spring device to the roller with the uneven space screen, including the evacuation door plate By having an adhesive band plate;

Increasing the durability of the screen main body, minimizing the deflection of the evacuation door plate, as well as double the degree of adhesion can achieve the effect of improving the flame retardant performance of the screen fire shutter and the lifting operation and opening and closing of the evacuation door smoothly.

Claims (4)

In order to provide the uneven space 37 formed by the diameter difference, the outer diameter pipe 31 having a smaller diameter than the roller pipe is coupled between the two roller pipes 34 so as to form a concentric circle, and the roller is formed on the circumferential curved surface of the outer diameter pipe. A roller 3 having protrusion bars 32 and 321 having the same height as the circumferential curved surface of the pipe; The upper end is coupled to the circumferential curved surface of the roller pipe and one surface of the protrusion bar together with the fixing band plate 17, and the lower end is coupled to the lower T bar 11 to form a single fire protection film and an evacuation opening part 12 formed at the center thereof. A screen main body (1) having a protective curtain (15) for protecting an upper portion of the evacuation opening; It is provided with a cover thin plate 4 coupled to the top of the evacuation door, the bottom is coupled to the bottom of the evacuation door 21, one side end is integrally coupled to one side of the evacuation opening formed on the screen by sewing, the top and The other side end is embedded in a wire seam, the evacuation door plate (2) which is a fire-resistant cloth that can be opened and closed by the sewing line 16 as an axis; An adhesive band plate 14 and 22 coupled to each side by sewing on one surface of the screen main body and the evacuation door plate; A starting hanger device 5 which maintains a taut state by pulling up the evacuation door plate with a constant force and at the same time generates a stroke of the hanger bar to smoothly open and close the evacuation door plate; In order to prevent sagging and wrinkling of the upper part of the evacuation door plate by one-third of the width of the upper part of the evacuation door plate, one end is vertically connected to the cover plate and the other end is connected to one surface of the protrusion bar 321. A fixed hanger bar 6 which is a thin metal plate; The evacuation door of the screen fire shutter, characterized in that the evacuation evacuation through the evacuation opening portion is composed of a close contact spring device (7) to close the evacuation door plate closed to the main screen. The method of claim 1, The close band 14, 22 is located in the area adjacent to the upper end and one side end of the evacuation opening of one screen screen. A close contact with the sewing band is coupled to the side 14, and the upper end and one side end portion of one side of the evacuation door plate in contact with the screen. The evacuation door of the screen fire shutter, characterized in that the close-fitting band 22 is sewn and coupled horizontally spaced at regular intervals and maintained in parallel with each other. The method of claim 1, The maneuvering hanger has a hole drilled at an angle to the circumferential surface and a spring end insertion hole 56 at one end thereof, and is fastened to the female screw 33 formed on the circumferential curved surface of the outer diameter pipe by a bolt 36. Ring 52; A rotation end 54 having a spring end insertion hole 561 at one end and rotatably coupled to a circumferential curved surface of the outer diameter pipe spaced a predetermined distance from the ring; A torsion coil spring 53 coupled to the outer diameter pipe circumferential surface between the ring and the rotary ring and inserted into holes 56 and 561 perforated in the cross section of the rotary ring and the ring at both ends thereof; A stop ring 55 which is coupled to the circumferential surface of the outer diameter pipe by maintaining a state in contact with the rotary ring to prevent deviation of the starting position of the rotary ring; A guide plate 8 having a perforated slit hole and coupled to the screen main body at a predetermined distance from the top of the evacuation door plate; One end is coupled in the state wound around the circumferential surface of the rotary ring by the stroke length, the other end is composed of a hanger bar 51 which is a thin metal plate that is coupled to the cover plate 4 through the slit hole of the guide plate Evacuation door of screen fire shutter The method of claim 1, The close spring device (7) is provided with a fixing pin and the shaft (75), located between the protrusion bar and the protrusion bar is coupled to the circumferential curved surface of the outer diameter pipe, the cover plate of the same width and height 'c' shape of the protrusion bar 72; A guide plate 81 fastened to one surface of the screen main body; One end is coupled to the fixing pin and the other end is a tension spring (73) coupled with the wire; A pulley 74 rotatably coupled to a shaft 75 integrally coupled to the cover plate; One end is a tension spring, the other end of the screen fire shutter shutter, characterized in that consisting of a wire 71 coupled to the cover plate 4 through the guide plate.

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