KR200410054Y1 - Fireproof Door - Google Patents

Abstract

The present invention relates to a fire door, in particular, when the fire door is automatically closed due to the occurrence of a fire, the entrance is closed, so that people who have not escaped to a safe place can easily open a separate emergency door installed on one side of the fire door. Thus, it is an object to provide a fire door that can reduce the damage of life.

Fire doors of the present invention having the above object is installed on the left and right side wall forming the passage of the building, respectively, the first door and the second door to close the passage of the building when a fire occurs by the action of the auto hinge and the door release In at least one of the first door or the second door is an emergency door is installed, the emergency door is coupled to the door through a spring hinge so that the emergency door is always kept closed, the emergency door is a person The emergency opening device that can be opened by pressing is installed, and when the fire door of the present invention is automatically closed due to the occurrence of a fire, when the entrance is closed, a person who cannot escape to a safe place can easily open a separate emergency door installed on one side of the fire door. Characterized in that it can be opened to go out.

Fire Doors, Emergency Doors, Spring Hinges, Emergency Openings, Door Releases, Auto Hinge, Clearances

Description

Fireproof Door

1 is an overall schematic view showing a closed state of the fire door of the present invention

Figure 2 is an overall schematic view showing a state in which one side is closed and the other side of the fire door of the subject innovation

Figure 3 is a partially enlarged perspective view showing an enlarged component coupled to the fire door of the present invention

Figure 4 is a perspective view showing an example of the auto hinge applied to the fire door of the present invention

5 is a perspective view showing an example spring hinge applied to the fire door emergency door of the present invention

Figure 6 is a perspective view of the overall combination showing the emergency opening of the emergency door configured in the fire door of the present invention

7 is an exploded perspective view showing an emergency opening device of the present invention

8 is a perspective view showing a state in which the emergency opening device of the present invention is installed in the emergency door

9 is a plan view showing an open state of the fire door of the present invention

10 is a plan view showing a closed state of the fire door of the present invention

11 is a perspective view showing a state in which the emergency door is opened when the fire door of the present invention is closed.

12A is a locked state diagram illustrating a locked state of an emergency opening device installed in an emergency door along the line AA ′ of FIG. 8;

12B is a release state diagram illustrating a release state of an emergency opening device installed in an emergency door along the line AA ′ of FIG. 8;

<Explanation of symbols for the main parts of the drawings>

10, 30: building entrance side wall 13, 33: door release

100: first door 120, 220: loop

110, 210: Auto hinge 130, 230: Auxiliary locking device

200: second door 300: emergency door

310: spring hinge 330: emergency opening device

500: reinforcement 520: locking device receiving groove

The present invention relates to a fire door that can reduce life and property damage by blocking an entrance to prevent or delay the spread of fire in the event of a fire, thereby preventing the spread and leakage of fire or toxic gas. When the fire door is automatically closed due to the occurrence of a fire, when the entrance is closed, it is possible to reduce the damage of life by making it easier for a person who cannot escape to a safe place to open a separate emergency door installed at one side of the fire door. It's about fire doors.

In general, relatively large buildings such as schools, government offices, department stores, and large warehouses can cause serious damage to human life or property in the event of a fire. Therefore, the construction of a fire protection system becomes a very important factor. Is strictly regulated.

The above-mentioned fire protection system includes a provision for fire doors, and the related laws stipulate that fire doors should be kept closed at all times or closed automatically by the generation of smoke or fire due to fire.

As described above, in order to keep the fire door always closed, the fire door must be locked, which is inconvenient for users.

Therefore, to solve the above inconveniences, typically, the entrance of the large buildings are equipped with a fire door that is automatically closed when there is smoke or temperature rise due to fire.

That is, the fire door is normally kept open to allow access of people or goods, and is automatically closed when a fire occurs.

In the fire door having the above functions and operations, a shutter fire door and a sliding fire door are common.

Since the present invention is for a sliding fire door, only the problems of the sliding fire door will be described below.

Opening fire doors are installed on both sidewalls of the building's entrance and exit, and are normally in close contact with the sidewalls.They are operated in the event of a fire and close the entrance to prevent or delay the spread of fire. It will play a role to reduce damage.

However, the open fire door only has the possibility of closing the door in the event of a fire, and when the fire door is automatically closed as described above, when the door is closed, a person who has not escaped to a safe place is trapped in the fire door for greater damage. There was a problem that could be worn.

The present invention was devised to improve the above-mentioned conventional problems, and when the fire door is automatically closed due to the occurrence of a fire, the entrance is closed, a separate emergency door installed on one side of the fire door by a person who has not been evacuated to a safe place. The purpose is to provide a fire door that can reduce the damage of life by making it easy to open the door.

As a means for achieving the above object, the fire doors of the present invention is installed on the left and right side wall forming the passage of the building, respectively, the first to close the passage of the building when a fire occurs by the action of the auto hinge and door release In the door and the second door, at least one of the first door or the second door is an emergency door is installed, the emergency door is coupled to the door through the spring hinge so that the emergency door is always kept closed, The emergency door is equipped with an emergency opening device that can be opened by a person, and when the fire door of the present invention is automatically closed due to the occurrence of a fire, and the entrance is closed, a person who cannot evacuate to a safe place is installed on one side of the fire door. It is possible to reduce the damage of life by allowing the emergency doors to be opened easily. .

Preferably, the present invention, in the above configuration, the upper side of the first door and the second door is further provided with an auxiliary lock, respectively, when the first door and the second door is closed in the reinforcement table is located Locking device receiving grooves for the locking action of the auxiliary locking device are formed, respectively, to prevent the spread of the fire by preventing the opening of the doors that may occur due to deformation by the thermal power when the fire occurs. do.

Preferably, the present invention, in the above configuration, in order to prevent the gap between the first door and the second door, the outer iron piece of the door integrally extends in a direction that does not occur when the door rotates It is made, the gap prevention piece is further formed, characterized in that to prevent the leakage of toxic gas through the fire door gap of the present invention when a fire occurs.

The above objects, features and advantages will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. First of all, in adding reference numerals to the components of each drawing, it should be noted that the same components have the same number as much as possible even if displayed on different drawings.

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

1 is an overall schematic view showing a closed state of the fire door of the present invention, Figure 2 is a schematic view showing a state in which one side of the fire door of the present invention is closed and the other side is closed.

As shown in the drawings, the fire door of the present invention is a buried fire door, the first door 100 is installed in the form of a swing so as to be rotatable on the left side wall 10 side of the building, and the right side wall 30 of the building The second door 200 is installed in the form of a swing so as to be rotatable, and the emergency door 300 is coupled to the first door 100 is characterized in that it is configured.

Referring to the fire door of the present invention having the above configuration in more detail as follows.

An upper wall (not shown) formed at the upper end of the left wall 10 and the right wall 30 constituting the passage of the building is provided with a reinforcement table 500, and the hinge 20a is provided at the end of the left wall 10 of the building. The first door 100 is installed to be rotatable (folding or unfolding) through, and the second door 200 is installed at the end of the right wall 30 of the building so as to be rotatable through the hinge 20b.

In the above configuration, grooves 12 and 32 are formed in the fixing portions of the hinges 20a and 20b of the left wall 10 and the right wall 30, respectively. The grooves 12 and 32 are hinges 20a and 20b protruding when the first door 100 and the second door 200 are opened to closely contact the respective walls 10 and 30. 12 and 32, the first door 100 and the second door 200 may be completely adhered to the corresponding walls 10 and 30.

Auto hinges 110 and 210 for automatically closing the doors 100 and 200 are coupled to lower ends of the first door 100 and the second door 200, respectively, Rings 120 and 220 are fixed to surfaces of the door 100 and the second door 200, respectively.

On the left wall 10 and the right wall 30, the hooks 120 and 220 of the first door 100 and the second door 200 are held to normally rotate the doors 100 and 200. By blocking, normal door releases 13 and 33 are installed, respectively, which keep the doors 100 and 200 open.

That is, the door release 13, 33 has a solenoid latch 13a, 33a (shown in FIGS. 9 and 10) that hold the hooks 120, 220 and mechanically increased when the ambient atmosphere temperature rises during a fire. Thermally sensed fuses (not shown) which are melted into each other are configured. Therefore, when the heat-sensing fuse blows due to an increase in the ambient temperature when a fire occurs, the rings 120 and 220 are released from the latches 13a and 33a, and at this time, the door may be opened by the operation of the auto hinges 110 and 210. 100 and 200 are rotated and closed.

On one side of the upper end of the first door 100 and the second door 200, in order to prevent the opening of the doors (100, 200) that may occur due to deformation due to thermal power when a fire occurs, a separate auxiliary locking device ( 130 and 230 are further installed, respectively, and when the first door 100 and the second door 200 are closed, the auxiliary locking device is located at the bottom of the reinforcement table 500 where the auxiliary locking devices 130 and 230 are located. Locking device receiving grooves 520 (shown in FIG. 3) that interact with 130 and 230 are formed, respectively.

On the other hand, the first door 100 is further provided with an emergency door 300, when the fire door of the present invention is closed due to the occurrence of a fire when the entrance is blocked, the person who did not evacuate to a safe place the emergency door By opening the 300 easily to go out, it is possible to reduce the damage of life.

The emergency door 300 is coupled to the first door 100 through a spring hinge 310 to maintain a closed state at all times, the emergency door 300 can be opened by a person by pressing on one side of the emergency door (300). An opening device 330 is installed, and when the first door 100 is opened to be in close contact with the left wall 10, the left door 10 is prevented from interfering with the emergency opening device 330 installed to protrude. Receiving groove 15 for receiving the emergency opening device 330 is further formed.

Figure 3 is a partially enlarged perspective view showing an enlarged component coupled to the fire door of the present invention, Figure 4 is a perspective view showing an example of the auto hinge applied to the fire door of the present invention, Figure 5 is applied to the fire door emergency door of the present invention A perspective view illustrating an example spring hinge.

Hereinafter, the structure of the component applied to the fire door of the present invention with reference to the drawings.

The auto hinges 110 and 210 installed at the lower ends of the first door 100 and the second door 200, respectively, are installed on the fire doors to prevent or delay the spread of the fires in the event of a fire. It is a normal device that is operated to automatically close slowly, and can be easily opened with a small force when opening the fire door.

A schematic structure of an example of the auto hinges 110 and 210 is as follows.

As shown in FIG. 4, the rotary shafts 114 and 214 are provided inside the cylindrical cases 112 and 212, and the springs 116 and 216 are provided around the rotary shafts 114 and 214. Under the springs 116 and 216, tension adjusting holes 115 and 215 are formed on the outer circumferential surface of the tension adjusting holes 117 and 217 at regular intervals. In addition, an opening is formed at one side of the cylindrical cases 112 and 212 corresponding to the tension adjusting ports 115 and 215 so that the tension adjusting holes 117 and 217 are exposed to the outside, and the tension adjusting hole is formed through the opening. The fixing pins 118 and 218 are fitted to 117 and 217 so as to be held at one end of the opening to maintain tension, and an upper portion of the hydraulic control device for adjusting the rotational speed of the rotating shafts 114 and 214 (not shown). City) is installed.

In the auto hinges 110 and 210 having the above-described structure, when the first door 100 and the second door 200 are opened in close contact with the respective wall surfaces, the springs are rotated by the rotation of the rotation shafts 114 and 214. 116 and 216 are wound and compressed, and when the first door 100 and the second door 200 are closed, the springs 116 and 216 which are in the compressed state are restored to their original positions and the first door is closed. The 100 and the second door 200 are rotated to be closed, and at this time, the closing of the sudden speed is prevented by the hydraulic control device (not shown), and then the door is slowly closed.

It is to be noted that the auto hinges 110 and 210 having the above structure and working effect are conventional devices.

As shown in FIG. 3, the auxiliary locking devices 130 and 230 installed at one side of the upper end of the first door 100 and the third door 200 have a locking device accommodating groove 520 formed at the lower end of the reinforcing bar 500. Is inserted into, to prevent the opening of the doors (100, 200) that may occur due to deformation due to the thermal power when a fire occurs.

The auxiliary locking device (130, 230) is a conventional device, and is composed of a stopper 233 protruding by a spring (not shown), and a rotary knob 235 capable of releasing the stopper 233. .

The auxiliary locking device (130, 230) has the following effects.

That is, when the first door 100 and the second door 200 are rotated and closed by the auto hinges 110 and 210, the stopper 233 touches the lower end of the reinforcement table 500 while not being shown. Compression and compression of the force) is protruded again by the force of the spring when the lock device receiving groove 520 formed in the lower end of the reinforcement table 500 to perform the function of the stopper. This is a device applied to a conventional door handle or the like.

An example of a spring hinge 310 to maintain the emergency door 300 installed in the first door 100 at all times is shown in FIG.

Types of the spring hinge 310 is very diverse, but will be described as an example of one of them.

The spring hinge 310 is a common hinge, the coil spring 315 is installed in the center of the rotation shaft 312, the coil spring 315 is elastically the first door 100 and the emergency door ( The emergency door 300 is always kept in a closed state by pushing each wing piece (not shown) fixed to the 300.

Figure 6 is a perspective view showing a combined view of the emergency opening of the emergency door configured in the fire door of the present invention, Figure 7 is an exploded perspective view of the emergency opening device of the present invention, Figure 8 is an emergency opening device of the present invention is installed in the emergency door It is a perspective view which shows a state.

The emergency opening device 330 installed in the emergency door 300 has a rectangular box shape having one side opening part 331a and is fixed to the emergency door 300 and the front of the housing 331. A base 332 installed in the emergency door 300 and rotatably coupled to the base 332 and protruding outward to be formed on a side surface of the first door 100 (FIG. 11). 12B), a latch 333 inserted into the rod, an elastic member 334 elastically pulling it to maintain the protrusion state of the latch 333, and a push bar axially coupled to the base 332. An actuating lever 335 for lifting the latch 333 out of the side grooves 100a of the first door 100 by lifting the latch 333 by the lever operation 337 and the actuation; The latch 333 is operated by the lever 335 to release the side groove 100a of the first door 100. The stopper 336 restricts the moving distance of the latch 333 when it is pulled out, and is coupled to the housing 331 through the opening 331a of the housing 331, and accommodates the operation lever 335 at the front end thereof. Push bar 337 and the push bar 337 is coupled between the housing 331 and the push bar 337 to operate it to quickly maintain the original position of the push bar 337 and the base elastic body 338, and the base And a base cover 339 coupled to 332 to protect the base components.

Since the emergency opening device 330 having the above-described configuration is also a known device, its detailed coupling relationship will be omitted, and its operation will be described in the following effects.

Hereinafter, the operation relationship for the fire door of the present invention will be described with reference to FIG. 3 and the drawings below.

9 is a plan view showing an open state of the fire door of the present invention, Figure 10 is a plan view showing a closed state of the fire door of the present invention.

First, as shown in FIG. 9, the fire door of the present invention is in an open state so that access is possible through the passage P of a building at normal times.

That is, the first door 100 and the second door 200 are in close contact with the left wall 10 and the right wall 30, which form the passage P of the building, respectively, which is the left wall 10. And the solenoid latches 13a and 33a formed in the door releases 13 and 33 respectively installed on the right side wall 30 and the right side wall 30 are provided on the first door 100 and the second door 200. Holding each of the doors 100, 200 is prevented from being opened, it is in close contact with each of the walls (10, 30).

Therefore, the fire door of the present invention is maintained in an open state, thereby freely entering and exiting through the passage (P).

When a fire occurs in the above state and the ambient ambient temperature rises, thermal sensing fuses (not shown) respectively formed in the door releases 13 and 33 are blown off, thereby causing the first door 100 and the second door ( The latches 13a and 33a which hold the rings 120 and 220 fixed to the 200 are released to release the rings 120 and 220.

At the same time, the doors 100 and 200 are rotated by the operation of the auto hinges 110 and 210 which are coupled to the first door 100 and the second door 200 to maintain the closed state. ) Is closed.

Meanwhile, auxiliary lock devices 130 and 230 formed on one side of the upper end of the first door 100 and the second door 200 which are closed by the operation of the auto hinges 110 and 210 are formed on the reinforcement table 500. It is inserted into the lock receiving groove 520 to maintain the locked state of the first door 100 and the second door 200 firmly.

Therefore, when the fire occurs, the fire door of the present invention closes the passage as shown in FIG. 10 to prevent the spread and leakage of fire or toxic gas.

As shown in FIGS. 9 and 10, in order to prevent leakage of toxic gas through a gap between abutting portions of the first door 100 and the second door 200, the gap may be prevented in the abutting portions of the doors. Preferably, the gap preventing pieces 201a are formed.

The gap preventing piece 201a is formed by integrally extending the outer iron piece of the door in a direction in which interference does not occur when the door is folded.

Hereinafter, the operation of the emergency door configured in the fire door of the present invention will be described with reference to FIG. 8 and the drawings below.

FIG. 11 is a perspective view illustrating a state in which an emergency door is opened when the fire door is closed, and FIG. 12A is a locked state diagram illustrating a locking state of an emergency opening device installed in an emergency door according to line AA ′ of FIG. 8. 8 is a release state diagram illustrating a release state of an emergency opening device installed in an emergency door according to line AA ′ of FIG. 8.

First, a state in which the first emergency door 300 is locked will be described with reference to FIG. 12A.

In the emergency opening device 330 installed in the emergency door 300, the tip 333a of the latch 333 protrudes out of the base 332 by the compression force (pull) of the elastic member 334. It is inserted into the side groove 100a of the first door 100 to maintain the latched state. Accordingly, the emergency door 300 is not opened arbitrarily.

In the above state, a person who has not been evacuated to a safe place by closing the fire door of the present invention due to the occurrence of a fire presses the push bar 337 of the emergency opening device 330 shown in FIGS. 11 and 12B. The rear portion of the actuating lever 335 is pressed, while the tip portion lifts the rear end 333b of the latch 333 while overcoming the compressive force of the elastic member 334.

Accordingly, as the front end 333a of the latch 333 comes out of the side groove 100a of the first door 100 and enters the inside of the base 332, the emergency state 300 is unlocked and continues. Push the emergency door 300 to open easily.

That is, when the emergency door 300 is pushed through the push bar 337, the latch 333 of the emergency opening device 330 is released and the emergency door 300 is easily opened from the first door 100.

Evacuate through the open emergency door 300 as described above, and when no external force acts on the opened emergency door 300, the emergency door is automatically closed by the action of the spring hinge 310.

Since the tip 333a of the latch 333 protrudes again as shown in FIG. 12A by the tension of the elastic member 334 configured in the emergency opening device 330 of the emergency door 300 automatically closed as described above, The emergency door 300 maintains the locked state of the initial state.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and it is common in the art that various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

As described above, the fire door of the present invention is installed at a wide entrance of a relatively large building such as a school, a government office or a department store or a large warehouse, and is operated side by side, so that handrails or other sculptures installed on one side of the stairs of the building. Can prevent interference.

In addition, the fire door of the present invention, when the fire door is automatically closed due to the occurrence of a fire, the entrance is closed, so that the person who can not evacuate to a safe place can easily open a separate emergency door installed on one side of the fire door It can reduce the damage of life.

Claims (3)

In the first door and the second door is installed on the left and right side wall forming the passage of the building, and closes the passage of the building in the event of a fire due to the action of the auto hinge and the door release, An emergency door is installed in any one of the first door and the second door, and the emergency door is coupled to the door through a spring hinge so that the emergency door can always be closed. Fire door, characterized in that the emergency opening device is installed. 2. The auxiliary locking device of claim 1, wherein an auxiliary locking device is further provided at upper ends of the first door and the second door, and the auxiliary locking device is provided on a reinforcement table in which the auxiliary locking devices are positioned when the first door and the second door are closed. The fire door, characterized in that each locking device receiving groove for the locking action of the formed. According to claim 1 or claim 2, Wherein the first door and the second door in contact with each other, in order to prevent the gap of the door, the outer iron piece of the door is integrally extended in a direction that does not occur when the door is rotated Fire door, characterized in that the gap prevention piece is further formed.

Images