KR200325271Y1 - emergency door hinge for fire shutter - Google Patents

Abstract

The present invention relates to an emergency door hinge for a fire shutter, in the emergency door hinge, one side is fixed to the front end of the fire exit shutter and a shaft formed with a hinge hole at the top and bottom is formed, the fixed jaw at the inner circumference of the upper shaft The outer protrusion is formed to protrude toward the inner side and the outer side of the upper end is formed upward, and the lower end of the lower shaft rod is formed with a fixed hinge formed with an inner side protrusion protruding downward, one side at the side end of the emergency door corresponding to the fixed hinge Is fixed and a shaft formed with a hinge hole is formed at its tip, which is located between the upper shaft and the lower shaft, and has a through hole formed at the lower side thereof so that a locking jaw protrudes on the outer surface thereof, and an inner circumference of the upper shaft of the fixed hinge. The upper fixing pin and the upper fixing pin formed with a fitting groove at the bottom having a fixed head that is fixed by the fixing jaw on the lower end, the hinge hole of the movable hinge It is located on the side and the lower end is located inside the lower shaft rod of the fixed hinge, the outer periphery is formed with a fixing hole having an inner thread portion, the upper fixing pin is formed with a fitting groove on the upper side, the upper one side is fitted into the fitting groove of the upper fixing pin The lower one side is characterized in that it has a fastening pin which is screwed into the inner screw portion of the fixing hole of the lower fixing pin through the through-hole of the torsion spring and the movable hinge is fixed to the fitting groove of the lower fixing pin.

Description

Emergency door hinge for fire shutter

The present invention relates to an emergency door hinge for a fire shutter, and more specifically, an emergency door hinge for a fire shutter that greatly improves work efficiency, light weight, high strength, and greatly reduces material cost due to easy fastening and no safety concerns. It is about.

In general, a shutter is a steel gate that is rolled up and rolled on a shaft on the upper side of a door by narrow and long steel plates horizontally, and when it is closed, it slides into grooves on both sides of the door frame by its own weight. It is a fire prevention and security door that has been blown down.

There are two types of hoist: manual and electric. Hand-held winds up the chained ones by turning the handle and turning the shaft connected by the cog wheels. When unloading, the chain lowers the chain and the steering wheel automatically unloads the gear when the clutch is released. In addition, there is a device in which the fuse melts automatically when the temperature reaches 70 ° C in case of fire.

Power transmissions are used in buildings with large shutters or many shutters. When a button is pressed, it is rolled up by a motor directly connected to the rotating shaft. The shaft and the reel of the shutter are called a shutter case, and a lid is provided for repair and cleaning.

In such a shutter, when a fire breaks out, the fire ignition point is quickly blocked to prevent fire from spreading to the surroundings, and a fire shutter is installed to protect human life. The fire shutter has a shutter plate formed by connecting an elongated plate-shaped shutter member up and down, a guide rail embedded on both side walls of the building so as to guide the shutter plate up and down, and is installed on the ceiling of the building to raise or lower the shutter plate. It consists of a shutter box with a built-in driving device.

Such a fire shutter suppresses the entry of outside persons into a specific space blocked by the shutter plate, and prevents external air from entering the ignition zone and spreads the damage zone in the event of a fire. Of course, it must be able to satisfy various functions such as preventing the emission of flame and toxic gas to the outside.

Furthermore, in the case of blocking a specific space due to an emergency situation such as a fire, an emergency exit is required for the rapid escape of those who remain in the sealed space, and such an emergency exit should not be impaired in the above-mentioned function. There is a structural constraint to be installed.

In order to solve this problem, the emergency exit-integrated fire shutter of Korean Patent Application Laid-Open No. 1999-013050 is made up, and is composed of a movable piece installed on an emergency door that is rotated and a fixed piece installed on the fixed side of the shutter member. It is screwed into the slide groove and the slide groove for moving pin support which is penetrated toward the movable piece and formed in the plurality of spring guide holes formed in the plurality of spring guide holes and the spring guide holes so that the springs can be respectively seated and fixed to one side of the spring. It is provided with an adjustment bolt to adjust the tension of the spring by moving the moving pin when rotating, the movable piece is provided with a protruding spring hanger so that the other side of the spring is fixed, the hinge is configured so that their overlap is connected by a hinge pin Member "is disclosed, but the configuration of the hinge member is complicated and its size and volume is large There was an expensive problem.

In addition, although the hinge for the fire prevention shutter as shown in Figs. 7 and 8 has been used, the size is too large, the weight is too heavy, and during the pin fastening operation for fixing the torsion spring on the rotating shaft during assembly The fastening part of the pin is formed on the inner side of the hinge pivot, which makes it difficult to fix the torsion spring, and during the assembly work, the pin may be splashed by the repulsion force caused by the torsion spring, causing scarring on the face of the operator and blinding the eyes. There was a problem that industrial accidents such as occur.

The present invention is to solve the conventional problems as described above, the fastening operation is easy and there is no safety concern, providing an emergency door hinge for fire shutters that greatly improve the work efficiency, light weight, high strength, and greatly reduce the material cost Has its purpose.

The present invention to achieve the above object is in the emergency door hinge for opening and closing the emergency exit by rotating the emergency door integrally formed on one side of the fire shutter;

One side is fixed to the tip of the emergency exit of the fire prevention shutter and the shaft is formed with a hinge hole at the upper and lower ends of the fire prevention shutter, the inner periphery of the upper shaft is formed so that the fixing jaw protrudes to the inner side and the outer protrusion protruding upwards of the upper end is formed. And, the lower end of the lower shaft rod and the fixed hinge formed inside the inner protrusion protruding downward;

One side is fixed to the side of the emergency door corresponding to the fixed hinge and a shaft formed with a hinge hole is formed at the front end is located between the upper shaft and the lower shaft rod, the lower portion is formed with a through hole is formed in the movable hinge protruding the locking step Wow;

An upper fixing pin having a fixing head portion at which rotation is fixed by a fixing jaw portion at an inner circumference of the upper shaft rod of the fixing hinge and having a fitting groove formed at a lower end thereof;

An upper end is located inside the hinge hole of the movable hinge and a lower end is located inside the lower shaft bar of the fixed hinge, and a fixing hole having an inner screw part is formed at the outer circumference and an upper end of the fixing pin is formed;

The upper one side is fixed to the fitting groove of the upper fixing pin and the lower side is torsion spring fixed to the fitting groove of the lower fixing pin and

The fastening pin is screwed to the inner screw portion of the fixing hole of the lower fixing pin through the through hole of the movable hinge.

1 is an exploded perspective view showing a separated state of the embodiment of the present invention,

2 is a perspective view showing a combined state of the embodiment of the present invention,

3 is a plan sectional view of an embodiment of the present invention,

Figure 4 is a plan sectional view showing a state when opening the emergency door of the present invention embodiment.

Figure 5 is a plan sectional view showing a rotation angle of the rear side when closing the embodiment of the present invention,

6 is a front view showing a state of use of the embodiment of the present invention,

Figure 7 is a perspective view showing the separation of the conventional hinge,

Figure 8 is a perspective view showing a fastening of the conventional hinge.

* Description of the symbols for the main parts of the drawings *

1: emergency door hinge 10: fixed hinge

11: upper shaft 12: hinge hole

13: fixing jaw portion 14: outer protrusion

15: lower shaft 16: hinge hole

17: inner protrusion 20: movable hinge

21: shaft 22: hinge ball

23: through hole 24: jam jaw

25: protruding jaw 31: upper fixing pin

32: fixed head 33: fitting groove

35: lower fixing pin 36: fixing hole

37: inner thread portion 38: fitting groove

40: torsion spring 50: fastening pin

100: fireproof shutter 110: emergency door

Hereinafter, the present invention in more detail by the accompanying drawings as follows.

1 is an exploded perspective view showing a separated state of the present invention embodiment, Figure 2 is a perspective view showing a combined state of the present invention embodiment, Figure 3 is a cross-sectional view of the present invention embodiment, Figure 4 is an emergency door of the present invention embodiment This is a cross-sectional view showing the state of opening. Figure 5 is a cross-sectional plan view showing the rotation angle of the rear side when the embodiment of the present invention, Figure 6 is a front view showing the state of use of the present invention embodiment.

The emergency door hinge for fire prevention shutter of the present invention has one side fixed to the emergency exit tip of the fire prevention shutter 100, and shafts 11 and 15 having hinge holes 12 and 16 formed on the upper and lower ends thereof, On the inner circumference of the secondary shaft 11, the fixing jaw portion 13 is formed to protrude to the inner side, and the outer protrusion 14 is formed to protrude upwardly outward of the upper end, and the inner side of the lower shaft 15 is downward. Fixed hinge 10 formed with an inner protrusion 17 protruding into the shaft, and the shaft bar 21 is fixed to one side at the side end of the emergency door 110 corresponding to the fixed hinge 10 and the hinge hole 22 is formed at the front end thereof. ) Is formed between the upper shaft bar 11 and the lower shaft bar 15, the lower portion of the through-hole 23 is formed and the movable hinge 20 formed to protrude the locking jaw 24 on the outside, fixed hinge The upper height of the upper shaft rod (11) has a fixed head portion 32 is fixed to the rotation by the inner circumferential fixed jaw portion 13 and the fitting groove 33 is formed at the bottom The pin 31 and the upper end are located inside the hinge hole 22 of the movable hinge 20, and the lower end is located inside the lower shaft bar 15 of the fixed hinge 10. Has a fixing hole 36 is formed and the upper fixing pin 35 has a fitting groove 38 is formed on the top, the upper one side is fixed to the fitting groove 33 of the upper fixing pin 31 and the lower one side of the lower fixing To the inner threaded portion 37 of the fixing hole 36 of the lower fixing pin 35 through the through-hole 23 of the torsion spring 40 and the movable hinge 20 to be fitted into the fitting groove 38 of the pin 35 It consists of a fastening pin 50 to be screwed.

Referring to the use state of the present invention as follows.

As shown in FIG. 6, the emergency door hinge 1 of the present invention has an upper and lower emergency door hinge 1 adjacent to an outer protrusion 14 of the upper shaft 11 and an inner protrusion 17 of the lower shaft bar 15. The inner protrusions 17 and the outer protrusions 14 are respectively positioned to be fitted with each other. As shown in FIG. 3, the emergency door 110 is maintained in the fire shutter 100.

In this state, as shown in Figure 4, in the emergency, when the emergency door 110 is opened in the fire shutter 100, the movable hinge 20 and the upper fixing pin 31 located in the hinge hole 22 of the shaft 21 The lower fixing pin 35 is pivoted about the axis and the emergency door 110 is opened at an angle of 95 degrees to open the emergency exit.

In the state where the emergency door 110 is opened at an angle of 95 degrees, the locking jaw 24 of the movable hinge 20 is in contact with the body of the fixed hinge 10 to prevent further opening.

At this time, the fixing head 32 of the upper fixing pin 31 is located between the fixing jaw portion 13 of the upper shaft bar 11 can not be rotated, only the shaft bar 21 of the movable hinge 20 is rotated, the lower The fixing pin 35 is fixed to the through hole 23 of the movable hinge 20 by the fastening pin 50, and thus, each fitting recess 33 between the upper fixing pin 31 and the lower fixing pin 35. The torsion spring 40 fixed by 38 is torsionally rotated.

In this state, when the external force to open the emergency door 110 is removed, the movable hinge 20 of the emergency door hinge 1 of the present invention through the lower end of the torsion spring 40 through the opening of the hinge 20 The emergency door 110 is repositioned by the elastic force of the lower fixing plate 35 and the torsion spring 40 fixed to the fastening pin 50 at 23, and the emergency exit of the fire shutter 100 is immediately closed.

As shown in FIG. 5, the protruding jaw 25 is formed at the rear side of the movable hinge 20 so that the emergency hinge 110 is closed at the emergency shutter 100 and the movable hinge 20 is fixed at the fixed hinge 10. It is prevented from rotating counterclockwise.

As described above, the present invention is easy to fasten and there is no safety concern, thereby greatly improving work efficiency and lightness, high strength, and material cost.

The present invention is not limited to the above-described specific preferred embodiment, and any person having ordinary skill in the art to which the present invention pertains may make various modifications without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

Claims (1)

In the emergency door hinge for opening and closing the emergency exit by rotating the emergency door (110) integrally formed on one side of the fire shutter (100); One side is fixed to the front end of the fire exit shutter, and the top and bottom shaft rods (11, 15) formed with a hinge hole (12, 16) is formed at the tip, the fixed jaw portion (13) on the inner circumference of the upper shaft (11) ) Is formed to protrude to the inner side and the outer protrusion 14 is formed to protrude upward of the outside of the upper end, the lower end of the lower shaft 15, the inner hinge 17 is formed with a fixed hinge ( 10); One side is fixed to the side end of the emergency door 110 corresponding to the fixed hinge 10 and the shaft bar 21 formed with a hinge hole 22 is formed on the upper shaft 11 and the lower shaft bar 15 A movable hinge 20 formed between the lower and through holes 23 and an outer side of the locking jaw 24 to protrude; An upper fixing pin 31 having a fixing head 32 to which rotation is fixed by an upper circumferential fixing jaw portion 13 of the upper shaft rod 11 of the fixing hinge 10 and a fitting groove 33 formed at a lower end thereof; The upper end is located inside the hinge hole 22 of the movable hinge 20 and the lower end is located inside the lower shaft bar 15 of the fixed hinge 10 and the fixing hole 36 having an inner screw part 37 at the outer circumference. It is formed and the lower fixing pin 35 has a fitting groove 38 is formed on the top; The upper one side is fixed to the fitting groove 33 of the upper fixing pin 31 and the lower side of the torsion spring 40 is fixed to the fitting groove 38 of the lower fixing pin 35 and Emergency door for a fire shutter characterized in that it comprises a fastening pin 50 is screwed into the inner screw portion 37 of the fixing hole 36 of the lower fixing pin 35 through the through hole 23 of the movable hinge 20. Hinge.