KR102535604B1 - Fire door - Google Patents

Abstract

The present invention relates to a fire door. A cylinder cover and a lock bolt cover are disposed and installed to be fixed to a right position in an inner frame installed in a fire door by using a position determination means so that any one of skilled or unskilled workers can easily work. In addition, the cylinder cover and the lock bolt cover inserted into the inner frame tightly adhere to a curved portion without interference. The lock bolt cover is configured to be fixed in a simple locking way, so it is possible to simply fix the lock bolt cover without a separate fixing means. Accordingly, cylinder position determination embossing and lock bolt position determination embossing are formed in the inner frame, respectively. A cylinder position determination hole inserted by the cylinder position determination embossing is formed in the cylinder cover installed in the inner frame. A lock bolt position determination hole inserted by the lock bolt position determination embossing is formed in the lock bolt cover installed in the inner frame.

Description

Fire door

The present invention relates to a fire door, and more particularly, to reduce the installation work time by easily arranging a cylinder cover and a bracket cover installed inside a fire door made of a single door type or a double door type, respectively, in the right position using a positioning emboss, In addition, it relates to a fire door in which a bracket accommodating body constituting a bracket cover and a bracket fixture are easily, simply and quickly coupled without a separate fixing tool by a hanging method.

In general, a fire door is installed at the entrance of an apartment or a shopping mall to prevent spread and explosion in case of fire.

These fire doors are generally divided into a two-door type in which a pair of fire doors, that is, a use door and a fixed door, lock in contact with each other and a single door type in which the door to be opened and closed is locked to the door frame.

The fire door increases the strength inside the front iron plate and the rear iron plate to prevent twisting during a fire explosion, while an inner frame is installed so that the cylinder cover and the bracket cover installed on the fire door are fixed to the side.

In this inner frame, a cylinder cover and a holder cover are inserted and installed on the inner surface in a state in which both ends are bent to form a "c" shape in a generally flat cross section.

On the other hand, the cylinder cover is installed so that a cylinder (aka: lock assembly) configured to lock or unlock the fire door using a rotating handle is accommodated therein and protected.

Here, the cylinder cover is installed in a single door type or a double door type, and in the use door of the double door type, a cylinder operated by a rotating handle is installed on the cylinder cover, and a cylinder cover having an empty space is installed on the fixed door because the cylinder is not installed , a fixed handle is mounted on the cylinder cover.

In addition, the holder cover is configured to accommodate and protect an up-and-down holder (aka: Odoshi) fixing the fixed door to the door frame in the double-door type fire door.

As an example of the prior art of a fire door in which an internal frame is installed, Utility Model Registration No. 0490133 (Name: Internal Frame for Fire Door) and Utility Model Registration No. 0490089 (Name: Cylinder Protection Cover for Fire Door) previously registered by the present applicant have been disclosed. It became.

However, since the cylinder cover of the prior art does not have a means for determining the position when installed on the inner frame, it requires the skill of a skilled worker to install it in the correct position, resulting in an inconvenient fixing operation.

That is, in the prior art, if the cylinder cover is not installed in the correct position of the inner frame, it is twisted during coupling and a gap is generated, and this gap has a problem in that fire and flame penetrate and spread into the inside of the fire door in the event of a fire, and in addition, the front steel plate of the fire door There is a problem in that the assembly time is increased because the handle hole and the handle do not match the coupling position punched in the back plate and the back plate.

This problem also has the same problem with the bracket cover fixed to the inner frame in the same way as the cylinder cover.

Furthermore, there is a problem in that both ends of the front surface of the cylinder cover mount cover inserted into the inner frame are lifted without being caught due to interference due to the inner curved portion generated in the process of bending both ends of the inner frame.

Furthermore, the holder cover is composed of a holder receiving body and a holder holder to accommodate and protect the holder, and is used by welding after temporary coupling, but if the position is arbitrarily moved in the assembly state, the welding work is easy Without doing so, there is a problem that the production cost increases due to such work.

The present invention has been made to solve the above problems, and the cylinder cover and the bracket cover are placed in the correct position using a positioning means on the inner frame installed inside the fire door and installed so that they are fixed, so that skilled or unskilled people In addition, the cylinder cover and the holder cover inserted into the inner frame are in close contact with the curved surface without interference, and the holder cover is configured to be fixed with a simple hooking method, so that there is no need for separate fixing means. It is about a fire door that can be easily fixed.

The present invention is configured as follows in order to achieve the above object. That is, the cylinder cover that protects the cylinder inside is installed in a "c"-shaped inner frame, or the cylinder cover that protects the cylinder is installed inside one side, and the cylinder cover and the bracket cover are installed inside the other side, respectively. In a fire door made of a double door installed in a c-shaped inner frame, a cylinder positioning emboss formed convexly at a position where a cylinder cover is installed on the inner surface of the inner frame, and a bracket cover on the inner surface of the inner frame When the mounting bracket positioning embossed convexly formed inside and the cylinder positioning emboss and the front surface of the cylinder cover corresponding to the cylinder positioning emboss are penetrated and the cylinder positioning emboss is inserted, the cylinder cover is placed in the proper position of the inner frame. The cylinder positioning hole to be disposed and the front surface of the holder positioning emboss corresponding to the holder positioning emboss are penetrated, and when the holder positioning emboss is inserted, the holder positioning hole in which the holder cover is placed in the correct position of the inner frame It is characterized by consisting of.

In addition, the cylinder cover has an accommodation space for accommodating a cylinder to be locked or released therein, the front is open and communicates with the inner accommodation space, and a cylinder accommodation body having first fitting protrusions formed on both sides of the upper and lower front surfaces, respectively. And, fixed to the open front of the cylinder receiving body, a cylinder positioning hole is formed so as to be inserted into a position corresponding to the cylinder positioning emboss formed on the inner frame, and the first fitting protrusion is formed at a position corresponding to the first fitting protrusion. It is characterized by consisting of a cylinder fixture made of a first fitting groove into which one fitting protrusion is inserted and fixed.

In addition, the holder cover has an accommodation space in which a holder for locking or unlocking is accommodated, the front is open and communicates with the internal accommodation space, and a holder having second fitting protrusions formed on both sides of the upper and lower front surfaces, respectively. It is fixed to the metal accommodating body and the opened front of the metal accommodating body, and a plug positioning hole is formed so as to be inserted into a position corresponding to the plug metal positioning emboss formed in the inner frame, and the second fitting protrusion corresponds It is formed in a position to be characterized in that it consists of a bracket fitting made of a second fitting groove into which the second fitting protrusion is inserted and fixed.

In addition, when the first fitting protrusion is inserted into the first fitting groove, both sides of the front surface of the cylinder housing body are formed shorter than the front surface of the cylinder holder at a predetermined height so that the front surface of the cylinder holder protrudes from the front surface of the cylinder housing body. It is characterized in that the first curved surface receiving portion configured to accommodate the curved portion formed on the inner surface of the inner frame.

In addition, when the second fitting protrusion is inserted into the second fitting groove, both sides of the front surface of the holder metal receiving body protrude from the front surface of the mounting bracket, so that the front of the mounting bracket protrudes from the front surface of the mounting bracket. It is formed short in height and is characterized in that the second curved surface accommodating portion configured to accommodate the curved surface formed on the inner surface of the inner frame.

Furthermore, the locking hole formed through both sides of the bottom surface of the holder receiving body and the locking bracket corresponding to the locking hole protrude downward and are erected and caught in the locking hole in an inclined state, gradually moving from the front to the rear. It is characterized in that it consists of a locking jaw formed as a lowered inclined surface.

As described above, according to the present invention, by forming the cylinder positioning emboss and the holder positioning emboss in the inner frame, respectively, the cylinder cover and the holder cover are quickly placed in the correct position to suppress the occurrence of gaps, and When completely fixed by bolts, rivets or welding, the posture is not distorted, so the operator can work quickly, easily and conveniently.

In addition, by forming a first curved surface accommodating portion having a step in the cylinder accommodating body and the cylinder fixture, and forming a second curved accommodating portion having a step in the bracket accommodating body and the bracket fixture, respectively, the curved surface of the inner frame is formed with a stepped space. By being disposed in the first and second curved surface accommodating parts, the cylinder fixture and the bracket holder have an effect of being in close contact with the inner surface of the inner frame so that no gap is generated.

Furthermore, by fixing the bracket receiving body and the bracket holder in a rotational manner using the locking jaw and the locking hole, it is possible to exhibit a strong fixing force while being easy to fix, and when rotated in the reverse direction, the locking jaw is separated from the locking hole, Dismantling is also possible.

1 is a perspective view showing a state in which a cylinder cover and a holder cover are installed on an inner frame provided in a fire door according to the present invention
Figure 2 is an enlarged perspective view showing a state in which the cylinder cover is mounted on the inner frame according to the present invention
3 is a perspective view showing an exploded cylinder cover according to the present invention;
Figure 4 is a planar cross-sectional view showing a state in which the cylinder cover is in close contact with the inner frame according to the present invention compared with the conventional drawing
Figure 5 is an enlarged perspective view showing a state in which the holder cover is mounted on the inner frame according to the present invention
Figure 6 is a bottom perspective view showing the locking jaw and the locking hole constructed on the lower surface of the bracket cover according to the present invention
Figure 7 is a planar cross-sectional view showing a state in which the bracket cover is in close contact with the inner frame according to the present invention
Figure 8 is a side cross-sectional view showing a state in which the locking jaw is caught in the locking hole according to the present invention and the bracket holder is fixed to the bracket receiving cover
Figure 9 is an exploded perspective view showing a state in which a fixed emboss is formed in the cylinder receiving body according to the present invention, and an emboss hole formed in the cylinder fixture is formed.
Figure 10 is a planar cross-sectional view showing a state in which the fixed embossing formed with the guide slope according to the present invention is coupled in a slide manner to the embossing hole

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

As shown in the accompanying drawing 1, the fire door 10 of the present invention includes an inner frame 100, a cylinder cover 200 installed on the inner frame 100, and a bracket installed on the inner frame 100. It consists of a cover 300.

Both ends of the inner frame 100 are bent in a "c" shape, and the curved portion 110 is naturally formed during the bending process.

The bent hem of the inner frame 100 bent in this way is installed to be disposed inside the fire door 10 .

In addition, installation holes 120 are formed in the inner frame 100 so as to expose a cylinder and an up and down bracket to be described later in an installed state.

In addition, the cylinder position that protrudes convexly from the inner surface at a position spaced apart from the upper and lower ends of the installation hole 120 by a predetermined distance determines the correct position at which the cylinder cover 200 and the bracket cover 300 are installed. The crystal embossing 130 and the bracket positioning embossing 140 are respectively formed.

That is, the cylinder positioning emboss 130 is formed at the position where the cylinder cover 200 is installed, and the holder positioning emboss 140 is formed at the position where the holder cover 300 is installed.

As shown in the accompanying drawings 2 to 4, the cylinder cover 200 is configured to protect a cylinder (lock assembly) provided to lock or release the fire door 10 while being accommodated therein, the cylinder The cylinder accommodating body 210 is configured such that the front is opened in a state in which an accommodating space is formed therein so as to be accommodated therein.

In addition, both side walls of the cylinder accommodating body 210 are perforated so that a rotation handle for operating the cylinder is installed, and first fitting protrusions 211 protruding with a predetermined width are formed on both sides of the upper and lower front surfaces, respectively. .

In addition, a cylinder fixture 220 is configured in which the flange of the cylinder is fixed to the front surface while the rear surface is inserted and fixed into the opening of the cylinder receiving body 210.

The cylinder fixture 220 is formed with a protruding hole 221 in which a dead bolt and a latch protrude and protrude from the cylinder to lock and release.

In addition, the cylinder positioning emboss 130 is inserted into the position of the cylinder fixture 220 corresponding to the cylinder positioning emboss 130 so that the cylinder cover 200 is placed in the correct position of the inner frame 100. A positioning hole 222 is formed.

In addition, a first fixing hole 223 is formed through the cylinder fixing hole 220 at a position spaced apart from the cylinder positioning hole 222, so that the inner frame 100 communicates with the first fixing hole 223. It is configured to be firmly fixed using a fixing means such as a bolt, rivet, or melting point using a hole formed in the.

In addition, in the cylinder fixture 220 corresponding to the first fitting protrusion 211, a first fitting groove 224 having a "⊃,⊂" shape with both sides open so that the first fitting protrusion 211 is inserted is formed. Thus, the cylinder accommodating body 210 and the cylinder fixture 220 are configured to be fixed.

Here, the cylinder cover 200 is installed and fixed in an empty state, since a cylinder is installed on the door of the single door type and the double door type, and the cylinder cover 200 installed on the fixed door of the double door type does not require a cylinder. A fixed handle is installed.

As shown in the accompanying drawings, FIGS. 5 to 7, the holder cover 300 is configured to receive and protect a holder that moves up and down to lock or release the two-door fixed door, and to accommodate the holder in which the holder is accommodated inside. The main body 310 is provided, and is composed of a holder 320 to which the received holder is fixed.

The holder receiving body 310 is formed with an accommodation space formed therein to accommodate holders, the front is opened, and the upper surface is perforated so that the fixing rod provided in the holder can move up and down.

In addition, second fitting protrusions 311 protruding with a predetermined width are formed on both sides of the upper and lower front surfaces of the bracket receiving body 310, respectively.

The holder 320 is configured so that the rear is inserted into the holder receiving body 310 opened in a fixed state with the holder so that the holder is accommodated in the holder receiving body 310. An operating hole 321 is formed through the front surface so that the operating lever is exposed.

In addition, second fixing holes 322 communicating with holes formed in the inner frame 100 are formed at upper and lower ends of the operation holes 321, and are firmly fixed using fixing means.

In addition, a holder positioning hole 323 into which the holder positioning emboss 140 formed in the inner frame 100 is inserted is formed at a position spaced apart from the second fixing hole 322, thereby determining the holder positioning. When the holder positioning emboss 140 is inserted into the hole 323, the holder holder 320 is positioned on the inner frame 100 and can be placed in the correct position.

In addition, the second fitting groove in the shape of "⊃,⊂" with both sides open so that the second fitting protrusion 311 can be inserted into and fixed to the holder 320 corresponding to the second fitting protrusion 311. (324) is formed.

Therefore, by using the cylinder positioning emboss 130 and the cylinder positioning hole 222, the cylinder cover 200 is placed at the inner surface of the inner frame 100, and the holder positioning emboss 140 and By using the holder positioning hole 323, the holder cover 300 can be placed on the inner surface of the inner frame 100, so that positioning for placement can be quickly, easily and conveniently combined. In the state where it is, it does not move arbitrarily, so it has an effect of easily proceeding with the next work of fixing using the fixing means.

On the other hand, when the cylinder cover 200 and the bracket cover 300 enter the front, the curved surface parts 110 formed on both sides of the bent inner surface of the inner frame 100 do not come into close contact with each other due to interference with both ends, and a gap is generated. will do

In order to solve this problem, when the first and second fitting protrusions are inserted into the first and second fitting protrusions, the front surface of the cylinder holder 220 or the holder holder 320 is the cylinder receiving body 210 or the holder holder body By protruding from the front of the 310, it is possible to accommodate the curved portion 110 by securing a space due to a step on both sides.

That is, both sides of the front side of the cylinder accommodating body 210 are formed to a predetermined height so as to be relatively shorter than the front surface of the cylinder fixture 220, and the first curved surface accommodating part 230 is opened to the outside by a step appearing at the short height. formed naturally

Similarly, both sides of the front side of the bracket receiving body 310 are formed at a predetermined height so as to be relatively shorter than the front face of the bracket bracket 320, and the second curved surface receiving portion 330 is opened to the outside by the step appearing at the short height. formed naturally

Therefore, the first and second curved surface accommodating parts 230 and 330 can accommodate the radius of the curved surface part 110 of the inner frame 100, so that the cylinder protrudes from the front surface of the cylinder accommodating body 210. The front surface of the bracket fixture 320 protrudes from the front surface of the fixture 220 and the front surface of the bracket receiving body 310 and can be in close contact with the inner surface of the inner frame 100 without interfering with the curved portion 110.

On the other hand, in order to quickly and conveniently fix the bracket receiving body 310 and the bracket holder 320, as shown in the accompanying drawings FIGS. 6 and 8, both sides of the bottom surface of the bracket receiving body 310 Locking holes 312 are formed, each having a predetermined length.

In addition, a locking jaw 325 protruding downward is formed in the holder 320 corresponding to the locking hole 312, and when the locking jaw 325 is inserted into the locking hole 312, the locking jaw ( 325) is caught in contact with the front surface of the locking hole 312.

In addition, an inclined surface 326 whose height gradually decreases toward the rear from the stop is formed.

Therefore, when the bracket holder 320 enters the bracket receiving body 310 in a forward tilted state and then stands up, the front face of the locking jaw 325 rotates to the locking hole 312 and is fixed in contact with the locking hole 312. At this time, the height The sloped surface 326 with low is not in contact with the locking hole 312 and the bottom surface of the bracket receiving body 310, so that interference does not occur.

Here, the hooking jaw 325 is fixed to the hooking hole 312 by erecting the holder 320 tilted as described above, and at the same time, the second fitting groove 324 is formed in the holder receiving body 310. As the fitting protrusion 311 is inserted, it is firmly fixed so that a separate fixing means operation is unnecessary, and by not being fixed by the fixing means, when the holder 320 is tilted back to reverse rotation, the locking jaw 325 It is separated from the locking hole 312 and can be dismantled.

That is, this is because the inclined surface 326 formed with a gradually lower height on the locking jaw 325 can quickly escape from the locking hole 312 and be dismantled when the holder 320 is tilted at a small angle.

The configuration of the locking jaw 325 and the locking hole 312 is not limited to the bracket cover 300, and the same configuration can be applied to the cylinder cover 200 as well.

On the other hand, in order to easily couple the cylinder accommodating body 210 and the cylinder fixture 220 in a hooking manner to improve the fixing force, as shown in FIGS. 2 and 3 of the accompanying drawings, both front surfaces of the cylinder accommodating body 210 A plurality of fixed embosses 212 protruding into the inside are formed in the vertical direction, and on both sides of the fixed emboss 212 and the corresponding cylinder fixture 220, the embossed holes where the fixed emboss 212 is inserted and hung ( 225) is formed.

Here, while the cylinder accommodating body 210 enters the rear of the cylinder fixture 220, both sides of the cylinder accommodating body 210 and the cylinder fixture 220 must be bent inward and outward, respectively, so that the fixing emboss 212 is embossed. It may be easily coupled into hole 225 .

To this end, as shown in the accompanying drawings FIGS. 9 and 10, the fixed embossing 212 is formed with a guide slope 213 that is low in the front and higher toward the rear, and the embossed hole 225 forms the guide slope 213. It is formed through a rectangular shape that can be accommodated.

Therefore, when the cylinder receiving body 210 enters the rear of the cylinder holder 220, the guide slope 213 gradually increases in contact with the lower front side of the guide slope 213 on both sides of the cylinder holder 220 As a result, both sides of the cylinder fixture 220 are bent inward, and both sides of the cylinder receiving body 210 are bent outward to enter in a slide manner, and then, when the guide slope 213 is inserted into the embossed hole 225, it is fixed. The embossing 212 may be caught on the embossing hole 225 and firmly fixed.

The fire door 10 of the present invention configured as described above uses the cylinder positioning emboss 130 and the bracket positioning emboss 140 configured in the inner frame 100 to cover the cylinder cover 200 and the bracket cover 300 It can be quickly and conveniently installed in place by determining the location, and also, by accommodating the curved part 110 with the first and second curved surface accommodating parts 230 and 330, the inner frame 100 has a cylinder fixture ( 220) and the front surface of the bracket 320 can be brought into close contact to prevent gaps, and in addition, the bracket bracket 320 is attached to the bracket receiving body 310 by using the locking jaw 325 and the locking hole 312. ) can be provided with a useful fire door that can be easily and conveniently fixed and dismantled.

The present invention is not limited to the above-described embodiments and can be implemented with various modifications within the scope permitted by the technical spirit of the present invention.

Fire door: 10 Inner frame: 100
Curved part: 110 Mounting hole: 120
Cylinder positioning emboss: 130 Bracket positioning emboss: 140
Cylinder cover: 200 Cylinder receiving body: 210
1st fitting protrusion: 211 Fixed embo: 212
Inclined guide surface: 213 Cylinder fixture: 220
Protruding hole: 221 Cylinder positioning hole: 222
1st fixing hole: 223 1st fitting groove: 224
Embossed hole: 225 First curved surface receiving part: 230
Bracket Cover: 300 Bracket Receiving Body: 310
2nd fitting protrusion: 311 Locking hole: 312
Bracket: 320 Operation hole: 321
2nd fixing hole: 322 Bracket positioning hole: 323
2nd fitting groove: 324 Catch jaw: 325
Inclined surface: 326 2nd curved surface receiving part: 330

Claims (7)

The cylinder cover 200 that protects the cylinder inside is a one-letter type installed on the "c"-shaped inner frame 100, or the cylinder cover 200 that protects the cylinder is installed inside one side and the cylinder cover inside the other side. In the fire door 10 made of a double door type in which the 200 and the bracket cover 300 are installed in the "c"-shaped inner frame 100, respectively,
A cylinder positioning emboss 130 formed convexly to the inside at a position where the cylinder cover 200 is installed on the inner surface of the inner frame 100;
A bracket positioning emboss 140 convexly formed on the inner surface of the inner frame 100 at a position where the bracket cover 300 is installed,
When the cylinder positioning emboss 130 and the corresponding front surface of the cylinder cover are penetrated and the cylinder positioning emboss 130 is inserted, the cylinder cover 200 is disposed at the proper position of the inner frame 100. hole 222;
When the holder positioning emboss 140 is inserted through the front surface of the holder positioning emboss 140 and the corresponding holder cover 300, the holder cover 300 is formed in the center of the inner frame 100. It consists of a bracket positioning hole 323 disposed at the position,
The holder cover 300 has an accommodation space in which a holder for locking or unlocking is accommodated, the front is open and communicates with the internal accommodation space, and second fitting protrusions 311 are provided on both sides of the upper and lower front surfaces, respectively. ) is formed on the bracket receiving body 310,
It is fixed to the open front of the holder receiving body 310, and a holder positioning hole 323 is formed to be inserted into a position corresponding to the holder positioning emboss 140 formed in the inner frame 100, The second fitting protrusion 311 is formed at a corresponding position and is composed of a holder 320 consisting of a second fitting groove 324 into which the second fitting protrusion 311 is inserted and fixed,
When the insertion of the second fitting protrusion 311 into the second fitting groove 324 is completed, the holder metal receiving body 310 protrudes from the front surface of the holder metal receiving body 310. Both sides of the front surface of the ) are formed shorter at a predetermined height than the front surface of the holder 320, and the second curved surface receiving portion 330 is configured to accommodate the curved portion 110 formed on the inner surface of the inner frame 100.
Locking holes 312 formed through both sides of the bottom surface of the bracket receiving body 310,
The holder 320 corresponding to the locking hole 312 protrudes downward, is erected and hung on the locking hole 312 in an inclined state, and is formed as an inclined surface 326 that gradually lowers from the front to the rear. A fire door, characterized in that composed of a locking jaw (325).
According to claim 1,
The cylinder cover 200 has an accommodation space in which a locking or unlocking cylinder is accommodated, the front is open and communicates with the inner accommodation space, and first fitting protrusions 211 are provided on both sides of the upper and lower front surfaces, respectively. The formed cylinder accommodating body 210,
The cylinder positioning hole 222 is fixed to the open front of the cylinder receiving body 210 and inserted into a position corresponding to the cylinder positioning emboss 130 formed on the inner frame 100, and the first cylinder positioning hole 222 is formed. A fire door, characterized in that the fitting protrusion 211 is composed of a cylinder fixture 220 made of a first fitting groove 224 into which the fitting protrusion 211 is inserted and fixed at a corresponding position.
delete According to claim 2,
When the first fitting protrusion 211 is inserted into the first fitting groove 224, the front surface of the cylinder housing 210 protrudes from the front surface of the cylinder housing 220. Both sides are formed shorter than the front surface of the cylinder fixture 220 at a predetermined height, and the first curved surface receiving portion 230 configured to accommodate the curved portion 110 formed on the inner surface of the inner frame 100 is a fire door. .
delete delete According to claim 2,
A plurality of fixed embosses 212 protruding inward are formed in the vertical direction on both sides of the front side of the cylinder receiving body 210, and on both sides of the cylinder fixture 220 corresponding to the fixed emboss 212, the fixed embossing ( 212) is formed with an embossed hole 225 hanging after insertion,
The fixed emboss 212 is a fire door, characterized in that the guide slope 213 is formed at the front facing the cylinder fixture and becomes higher toward the rear, so that the fixed emboss is coupled to the emboss hole in a slide manner.

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