KR101681168B1 - Cylinder cover of fire prevention door - Google Patents

Cylinder cover of fire prevention door Download PDF

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Publication number
KR101681168B1
KR101681168B1 KR1020150184143A KR20150184143A KR101681168B1 KR 101681168 B1 KR101681168 B1 KR 101681168B1 KR 1020150184143 A KR1020150184143 A KR 1020150184143A KR 20150184143 A KR20150184143 A KR 20150184143A KR 101681168 B1 KR101681168 B1 KR 101681168B1
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KR
South Korea
Prior art keywords
protective cover
cylinder
fire door
door
surface portion
Prior art date
Application number
KR1020150184143A
Other languages
Korean (ko)
Inventor
지춘남
Original Assignee
(주)동방파스텍
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Priority to KR1020150184143A priority Critical patent/KR101681168B1/en
Application granted granted Critical
Publication of KR101681168B1 publication Critical patent/KR101681168B1/en

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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/04Casings of cylinder locks
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/0053Other details of locks; Parts for engagement by bolts of fastening devices means providing a stable, i.e. indexed, position of lock parts
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00Accessories in connection with locks
    • E05B17/0075Insulating, e.g. for limiting heat transfer; Increasing fire-resistance of locks
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/04Casings of cylinder locks
    • E05B2009/046Cylinder locks operated by knobs or handles
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/10Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13Type of wing
    • E05Y2900/132Doors
    • E05Y2900/134Fire doors

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  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Special Wing (AREA)

Abstract

The present invention relates to a protective cover for a cylinder of opening and closing a fire door. The protective cover in which a cylinder is inserted and installed removes and blocks a gap and an open part in order for a flame not to infiltrate into the fire door when a fire breaks out. Also, the protective cover for a cylinder of opening and closing a fire door improves convenience by facilitating connection of the protective cover and a reinforcing unit installed in the fire door. A sheet which is treated by a sheet metal work is integrally bent in order for the durability of the protective cover to be improved so that the opening of the fire door is not difficult as a form of the protective cover is changed due to high heat when the fire breaks out. An installation space is installed inside while a front side is open in order for the cylinder to be inserted and fixed. An installation hole penetrated is individually formed on both sides, and a pair of door handles operating the cylinder installed inside is connected to the cylinder through the installation hole. The front side of the protective cover is fixed and installed to the inner surface of the reinforcing unit. So, the protective cover is formed by being bent.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a fire-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective cover for a fire door opening / closing cylinder, and more particularly, to a protective cover for a fire door opening / closing cylinder, The present invention relates to a protective cover for a fire door opening / closing cylinder, which prevents fire from flowing into a cylinder and transferring it to a heat insulating material provided inside a fire door to prevent a large diffusion.

Generally, a fire door is installed to prevent indoor or outdoor flames and firearms from diffusing in other directions when a fire occurs in a building.

Such a fire door is generally provided with a large flame-resistant metal plate on both sides of the door, a separate open part is closed with another plate, and a fire door is formed by inserting a heat insulating material therein so as to maintain the room temperature .

A door handle is provided on both sides of the front door. The door handle is provided with a cylinder for opening and closing inserted into the protective cover inside the front face of the fire door to open and close the fire door, Locked and released at the same time.

Such a fire door is largely divided into a color door in which both side plates are formed thinly, a variety of formations, shapes and colors are applied to the outer side, and a colorful and luxurious aesthetic sense is captured.

As described above, the protective cover into which the cylinder is inserted can be easily installed inside the fire door by installing the cylinder of various shapes, sizes and widths in a protective cover conforming to the fire door standard. In particular, A fireproof door can be manufactured quickly and a dust or the like is prevented from entering into the cylinder.

[0004] As a prior art constructed to achieve the above-mentioned object, Patent Registration No. 1098880 (name: a key cylinder cover of a fire door) is disclosed. In terms of its construction, a cylinder having a locking protrusion And a cover having a hook which is inserted into a locking jaw of the bar with a guide groove interposed therebetween to prevent it from falling down on the guide groove and a reinforcing protrusion protruded to prevent warping on both sides.

Therefore, the cover provided with the cylinder and the cylinder bar provided on the front face of the fire door are fixed without being welded, thereby providing convenience of work.

However, in the conventional cover, the upper and lower portions are opened. In order to engage the cover and the cylinder bar, the guide groove is formed as a long slot through which the flame can move so as to provide a gap through which the flame can move, .

Especially in the winter when electricity or oil is frequently used for heating, fire is frequently generated in buildings, and the firefighting association emphasizes the fire protection function for the purpose of fire doors so as to prevent the fire from penetrating into fire doors.

However, in the prior art, when the cylinder is installed inside the cover, the upper and lower openings are filled with the heat insulating material. When a fire occurs in the indoor or outdoor of the building, flames and firearms interpose the door cover supporting the door handle, So that the flames and fire extinguished are naturally penetrated into the open part and transferred to the heat-insulating material which is very vulnerable to heat, so that it is diffused in the inside of the fire door, Is lost.

In addition, if the flame spreads inside the fire door, it is difficult to evacuate through the fire door or to open the fire door to evolve due to the increase in the internal temperature, thereby causing difficulties in early evacuation due to difficulties in evacuation and rapid evacuation.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a protective cover, in which a cylinder is inserted, is cut off by removing an opening and a gap to prevent a flame from penetrating into a fire door, The present invention provides a protective cover for a fire door opening / closing cylinder, which improves the durability of the protective cover so that it is not difficult to open the fire door by changing the shape of the fire door due to high heat.

The present invention is configured as follows to achieve the above object. That is, the plate-shaped plate-shaped plate is integrally bent so as to prevent diffusion into the inside of the fire door through the open portion of the flame, an installation space is provided in the inside in a state that the front is opened so that the cylinder is inserted and fixed, And a pair of door knobs for respectively operating the cylinders provided inside the cylinder, and a protective cover which is fixed to the inner surface of the reinforcing bar and fixed to the front of the cylinder, And a protective cover which is formed on the surface of the substrate.

Further, the protective cover may include a first side portion bent in one direction and provided with a mounting hole, a rear portion disposed on the rear side, a second side portion formed with a mounting hole, an upper portion disposed on the upper side, And a bottom part.

The protective cover may include a second upper surface portion bent and extended to a position deviated from the upper center of the protective cover, and a second upper surface portion bent and extended to a position outside the lower center of the protective cover. A first upper surface portion bent and extended so as to cover and cover the upper portion of the second upper surface portion; and a second upper surface portion bent and extended to cover and cover the lower surface of the second lower surface portion, 1 undersurface portion.

The protection cover may include an upper extension portion bent at both side ends of the upper surface portion in a downward direction, a rear portion bent to bend a rear end of the upper surface portion and closing the rear portion, And a lower extension extending upward at both side ends of the lower surface portion.

The protection cover may further include a rear portion disposed to bend the rear end of the upper surface portion in a semicircle so as to close the rear portion of the upper surface portion, a lower surface portion extending from the other end of the rear portion and disposed to close the lower surface, And a side extension portion extending inwardly in a direction in which the door handle is coupled to both ends of the cylinder so as not to interfere with each other and in which mounting holes are formed naturally in both side walls.

On the other hand, the first and second side portions are formed with a fitting portion bent forward and then bent inward.

In addition, a cylinder fixing portion formed with a bolt hole is formed in front of the upper surface portion and the lower surface portion. The cylinder fixing portion is bent at the end portion of the cylinder fixing portion. A boring protruding conically from the inner surface and the lower surface of the reinforcing table is inserted, And a reinforcing and securing portion formed with a fixed-position fixing hole provided therein.

In addition, a double protective cover for inserting and closing the protective cover is provided. Further, a rail is formed on the protective cover, and a slot is formed in the double protective cover so as to be slidably engaged.

As described above, according to the present invention, since the plate-shaped plate body is formed as a protective cover in the form of a box by a bending operation, convenience can be provided by a simple operation, thereby providing a quick protective cover and a durability .

Also, the opened front faces the front plate of the cylinder, and the remaining bent portions close the open portion, so that the infiltration of the flame can be prevented in advance.

Further, by forming the protective cover in a " U "shape or a" U "shape, both sides of the cylinder are brought into close contact with the upper side, the lower extension portion or the inner side surfaces of the side extension portion, It is possible to reduce the weight of the cover and reduce the production cost.

In addition, a fitting portion is formed on the front surface of the protective cover, and the fitting portion is inserted into the inner surface of the reinforcing bar having both sides bent in a "C" shape so that the two bent portions are closely contacted with both ends of the reinforcing bar, There is an effect.

In addition, since the outer surface of the reinforcing bar and the outer surface of the protective cover are coincident with each other, both side plates of the fire door are tightly fixed without being lifted to prevent the occurrence of gaps.

In addition, since the conical boring of the reinforcing bar is inserted into the correct position fixing hole of the reinforcing bar fixing plate of the protective cover and the protective cover is installed at the correct position, the operation rod of the cylinder and the fixing groove of the door frame are aligned, There is an effect that can be done.

In addition, by providing a double protective cover for protecting the protective cover, it is possible to prevent the infiltration of the flame and to improve the durability of the protective cover by blocking a minute gap that may occur during bending to form the protective cover.

A rail that blocks and reinforces the protective cover and the double protective cover is inserted and inserted into the slot, thereby preventing the flame penetrating between the protective cover and the double protective cover from moving upward and downward and protecting the cylinder from high temperature It has an effect of improving the durability.

1 is a perspective view showing a state in which a protective cover according to the present invention is installed in a fire door;
2 is a perspective view showing a protective cover according to the present invention.
3 is a perspective view showing a state in which a cylinder is inserted into a protective cover according to the present invention.
Figure 4 is a cross-
5 is a perspective view showing another protective cover according to the present invention.
Fig. 6 is an exploded view of the protective cover in Fig. 5,
7 is a perspective view showing another protective cover according to the present invention.
8 is a cross-
9 is a perspective view showing another protective cover according to the present invention.
FIG. 10 is a plan view showing a state where boring is inserted into the fixation hole in the fixed position according to the present invention. FIG.
11 is an exploded perspective view showing a state in which a double protective cover is provided on a protective cover according to the present invention.
12 is an exploded perspective view showing a state in which a double protective cover is installed on other protective covers of the present invention.
Fig. 13 is a side view showing various shapes of mounting holes according to the present invention

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

1, 5, 7, and 9, the present invention provides a fire door having a color door or a general door, a reinforcing bar 40 installed on the front of the fire door 1 for the purpose of reinforcement, And a protective cover for preventing the flame from penetrating into the cylinder (50) when the cylinder (50) is opened and closed in the cylinder (50) The protective covers 10a, 10b, 10c and 10d are constituted so as to prevent the flame from diffusing into the heat insulating material provided inside the fire door.

The protective covers 10a, 10b, 10c and 10d are formed in the shape of the protective covers 10a, 10b, 10c and 10d so as not to diffuse to a large extent when the flame is opened. The cylinder 50 is formed in a state in which the front side is opened so that the cylinder 50 can be easily inserted into the installation space, The inner surface of the front plate 51 of the inserted cylinder 50 is closed to remove the open portion through which the flame can move, and then the front surface is tightly fixed to the inner surface of the reinforcing bar 40.

On both sides of the protective covers 10a, 10b, 10c and 10d, there are provided mounting holes 60a, 60b, 60c, (18) are formed.

The protective covers 10a, 10b, 10c and 10d of the present invention provide four different embodiments.

First, the protective cover 10a of the first embodiment is formed as a box shape as shown in FIGS. 1 to 4. The first side portion 11 is formed so as to close one side of the cylinder 50 A rear portion 12 for bending one side end of the first side portion 11 inward and closing the rear side of the cylinder 50 is formed and the other side end of the rear portion 12 is bent outwardly, The upper end of the first side portion 11 is bent inward and the upper end of the upper portion of the first side portion 11 is in close contact with the inner surface of the second side portion 13 so as to close the cylinder 50 The upper end of the first side portion 11 is in close contact with the inner surface of the second side portion 13 and the lower end of the first side portion 11 is in contact with the lower portion of the cylinder 50, And a lower surface portion 15 which closes the lower surface portion 15a.

Mounting holes 18 are formed in the first and second side portions 11 and 13 so that the rotary shaft of the door handle 60 and the bolts can pass through.

The protective cover 10a of the first embodiment configured as described above is formed in a shape of a box that communicates with the installation space in a state where the front is opened and is not exposed to the outside after the cylinder 50 is inserted into the installation space, It is possible to obtain an action effect that can block foreign matter such as penetration of flame and dust.

As shown in FIG. 5, the protective cover 10b of the second embodiment is formed of a housing in which upper and lower portions are overlapped, and the first side portion 11 is formed so as to close one side of the cylinder 50 A rear portion 12 for closing the rear of the cylinder 50 is formed by bending one side end of the first side portion 11 inwardly and the other side end of the rear portion 12 is bent outwardly A second side surface portion 13 is formed to close the other side of the cylinder 50 and a second top surface portion 14b is formed by bending the upper end of the second side surface portion 13 inwardly to a position deviated from the center And the second lower face portion 15b is formed by bending the lower end of the second side face portion 13 in the inward direction so that the upper end of the first side face portion 11 is connected to the upper face of the second upper face portion 14b A first upper surface portion 14a for covering the upper side of the protective cover 10b is formed so as to cover the first side surface portion 11, When only the second when the first closing of the lower part (15b) covers and protects the cover overlaps the lower part (10b) it consists of a portion (14b).

Mounting holes 18 are also formed in the first and second side portions 11 and 13 as in the first embodiment.

When the protective cover 10a of the first embodiment is formed, the protective cover 10b of the second embodiment configured as described above is formed in a shape of a box as in the first embodiment. The first upper surface portion 14a and the first lower surface portion 14b are formed in the upper surface of the second upper surface portion 14a so as not to come into close contact with the inner surface of the second side surface portion 13, It is possible to provide the protective cover 10b which is formed integrally with the first and second bottom face portions 15a and 15b so as to overlap with each other so as not to generate a gap and is excellent in hermeticity and durability.

As shown in Figs. 6 and 7, the protective cover 10c of the third embodiment is configured such that when the plate body is viewed from the side, the cylinder 50 is bent and formed so as to be inserted into the cylinder body 50 The upper surface portion 14 of the upper surface portion 14 is provided with an upper extension portion 141 which is formed by closing the upper portion of the cylinder 50 and bending and extending in the downward direction at both side ends. The rear ends of the rear ends of the cylinders 50 are closed so that the rear ends of the rear ends of the cylinders 50 are closed, And a lower face portion 15 which is bent in the horizontal direction to close the lower portion of the cylinder 50 and has lower extension portions 151 that are bent and extended upward at both side ends thereof.

The upper extension portion 141, the rear side extension portion 121 and the lower extension portion 151 extend inwardly to a length that does not interfere with the rotation axis of the door handle 60 and the bolt, 18 are formed.

The protective cover 10c of the third embodiment constructed as described above has the upper end portion 141, the rear end portion 121 and the lower end portion 151 of the cylinder 50 after the cylinder 50 is inserted into the " The inner surface and the outer surface of the cylinder 50 are brought into intimate contact with each other, so that a clearance through which the flame can move is not generated, and at the same time, the provided cylinder 50 can be prevented from being arbitrarily deviated in the lateral direction.

As shown in Fig. 8, the protective cover 10d according to the fourth embodiment is constituted such that the cylinder 50 is bent and bent in a U-shape when viewed from the side, and the cylinder 50 is inserted and installed inside the cylinder. A rear portion 12 for closing the rear side of the cylinder 50 is formed by bending the rear end of the upper face portion 14 closing the upper portion of the cylinder 50 in a semicircle to form a rear portion 12 for closing the rear side of the cylinder 50, A lower face portion 15 for closing the lower portion of the cylinder 50 is formed on the upper face portion 14 and the lower face portion 15 of the upper face portion 14, And an extension portion 16.

In addition, the extended length of the side extension 16 is formed to have a length such that the mounting hole 18 can be formed in both side walls, like the protective cover 10c of the third embodiment.

The upper surface portion 14, the rear surface portion 12 and the lower surface portion 15 are separately described in order to understand the detailed description. The upper surface portion 14, the rear surface portion 12 and the lower surface portion 15 are integrally formed by bending the rear surface, 16 are integrally formed in a band-like shape protruding inward from both side ends of the protective cover 10d.

Therefore, the protective cover 10d of the fourth embodiment is also prevented from being displaced in the lateral direction of the inserted cylinder 50 like the protective cover 10c of the third embodiment, and generation of gaps can be suppressed.

By forming the protective cover 10d in the U-shape as described above, the rear surface of the case is brought into close contact with the semicircular cylinder 50 by the circular gear rotating inside the cylinder 50, .

The protective cover 10c and the U-shaped protective cover 10d are made of a material having a smaller size than that of the protective covers 10a and 10b, So that the weight of the product can be reduced and the total weight of the fire door 1 can be minimized.

2, 4 and 6, the protective covers 10a and 10b of the first and second embodiments are formed so that the front sides of the first and second side portions 11 and 13 are arranged in the inward direction There is further formed a fitting portion 17 formed by first bending and second bending in the horizontal direction.

The fitting portion 17 configured as described above is configured to be fixed to the inside of both side surfaces 41 of the reinforcing bar 40 which are bent at both ends and form a "C" when seen in plan view, The length of the first and second bent portions is the same as the thickness of the side surface 41 of the reinforcing bar 40 so that the outer surface of the reinforcing bar 40 and the outer surface of the protective covers 10a, It is possible to prevent the flame from moving when it comes into contact with the inner surface of both side plates.

Further, the protective covers 10a, 10c, and 10d of the first and third and fourth embodiments are provided with an upper surface portion 14 and a lower surface portion 14b, as shown in FIGS. 2, 7, A cylinder fixing part 21 extending outwardly or vertically is formed in front of the cylinder block 15 and a bolt hole 21 is formed in the cylinder fixing part 21 and fixed to the front plate 51 of the cylinder 50 by bolts. (21a) is formed.

The reinforcing supporter 22 is bent at the end of the cylinder fixing portion 21 in the horizontal direction and bent in a vertical direction to form a reinforcing supporter 22, The fixing holes 22a are formed in the upward and downward directions so as to insert a boring 42 protruding in a conical shape from the inner surface of the fixing hole 22a. (10c) and (10d) are fixed by using the protective cover (10a).

The height of the reinforcing supporter 22 formed to be stepped with the cylinder supporter 21 is formed to be the same as that of the thickness of the front plate 51 of the cylinder 50 and is tightly fixed, The first protective cover 10a, 10c, 10d can be fixed at the correct position when the first protective cover 10a, 10c, 10d is placed on the reinforcement table 40 and fixed, The lock bar protruding and retracting from the cylinder 50 is precisely aligned with the fixed groove formed in the door frame.

Furthermore, a double protective cover 30 is constructed in which a protective cover is inserted and installed so as to block the gaps that may occur in the process of bending or bending the protective covers 10a, 10b, 10c and 10d .

10 and 12, the double protective cover 30 is formed in a shape of a box having an open front side and a through hole 31 is formed on both sides of the protective cover 10a, 10b, 10c, (18) of the base plate (10d).

The double protective cover 30 constructed as described above may not be closely contacted due to a design allowable range error during the bending operation for forming the protective covers 10a, 10b, 10c and 10d, and a minute gap may be generated, 10b, 10c, and 10d are inserted and installed to prevent diffusion into the inside of the fire door.

In addition, the rails 32 protruding outwardly are formed on both sides of the protective covers 10a, 10b, 10c and 10d, respectively. In the protective cover 30, And the rail 33 is guided by the slot 33 so that the rail 32 is slidably coupled.

The rail 32 and the slot 33 are formed on the side surfaces and the lower surfaces of the protective covers 10a, 10b, 10c and 10d and the double protective cover 30 to increase the binding force.

The rails 32 formed in the protective covers 10a, 10b, 10c and 10d and the slots 33 formed in the double protective cover 30 facilitate the coupling with the purpose of improving the durability, Even if the flame infiltrates into the minute clearance that may occur between the outer surface of the protective covers 10a, 10b, 10c and 10d and the inner surface of the double protective cover 30, (33) is blocked in the upward and downward directions to be completely prevented from moving to the heat insulating material.

On the other hand, the shape of the mounting hole 18 formed in the side surface of the protective cover 10a or 10b formed in the shape of the housing is oval or circular or circular both sides or small And may be formed in various shapes according to the cover shape of the door handle 60 and the fastening position of the bolts to be engaged with the cylinder 50. [ will be.

The protective covers 10a and 10b are the sizes of general cylinders for opening and closing the fire doors. When the electronic door locks, which are widely installed in modern houses, are installed, the electronic door locks are mounted on electronic circuit boards and batteries So that the length of the protective covers 10a and 10b can be made long according to the length of the electronic door lock.

The protective covers 10a, 10b, 10c and 10d according to the present invention are formed integrally by bending the plate body so as to close the openable portion through which the flame can move, And the gap between the protective covers 10a, 10b, 10c, 10d that may occur during the bending operation is closed by the double protective cover 30 so that the flame is prevented from diffusing from the source, And it is also possible to prevent the gap that may be generated when fixing to the reinforcing bar 50 by using the fitting part 17 and to prevent the boring 42 of the conical shape from being applied to the fixed position fixing hole 10b, 10c and 10d are fixed to each other by fixing them with rivets or bolts in a predetermined position before inserting the protective covers 10a, 10b, 10c and 10d, And to provide a protective cover for the cover.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea of the present invention.

Fire door: 1 Protective cover: 10a, 10b, 10c, 10d
First side portion: 11 Rear portion: 12
Rear side portion: 121 second side portion: 13
Top surface portion: 14 First and second top surface portions: 14a and 15a
Upper surface extension part: 141 Lower part: 15
First and second lower surface portions: 14b and 15b Lower extension portion: 151
Side extension part: 16 Inside part: 17
Mounting hole: 18 Cylinder fixing part: 21
Bolt Ball: 21a Reinforced Sovereign Government: 22
Fixed position Fixed hole: 22a Boring: 42
Double cover: 30 Through hole: 31
Rails: 32 slots: 33
Reinforcement: 40 Both sides: 41
Cylinder: 50 Front plate: 51
Door Handle: 60

Claims (11)

A reinforcing bar 40 installed on the front of the fire door 1 for reinforcing the door, and a fire door 1 installed inside the fire door. The fire door 1 is made up of a color door with color and pattern applied thereto, A cylinder 50 which is opened and closed by using a pair of door handles 60 and a protective cover 10a which is inserted into the inside of the fire door 1 by inserting the cylinder 50,
The protective cover 10a is integrally bent to prevent the diffusion of the flame into the inside of the fire door through the open part, And a pair of door handles 60 for operating the cylinder 50 installed inside are provided in the cylinder 50 through the mounting holes 18, And the front portion of the reinforcing bar 40 is fixedly installed on the inner surface of the reinforcing bar 40 to remove the open portion of the protective cover 10a,
The protective cover 10a includes a first side portion 11 having a mounting hole 18 formed to close one side thereof and penetrating the first side portion 11 and a rear side of the first side portion 11, A second side surface portion 13 for bending the other side edge of the rear surface portion 12 and closing the other side by forming a through hole 18 to close the other side edge, An upper surface portion 14 which bends the upper end of the side surface portion 11 so as to close the upper side and a lower surface portion 15 which bends the lower end of the first side surface portion 11 and is arranged so as to close the lower portion,
The protection cover 10a is formed in a closed shape so as to be opened frontward so that the protective cover 10a can be inserted into the inside of the cover 10a. And a hole (31) are formed in the protective cover (30).
A reinforcing bar 40 installed on the front of the fire door 1 for reinforcing the door, and a fire door 1 installed inside the fire door. The fire door 1 is made up of a color door with color and pattern applied thereto, A cylinder 50 which is opened and closed by using a pair of door handles 60 and a protective cover 10b which is inserted into the inside of the fire door 1 by inserting the cylinder 50,
The protective cover 10b is integrally bent to prevent the diffusion of the flame into the interior of the fire door through the opened portion, And a pair of door handles 60 for operating the cylinder 50 installed inside are provided in the cylinder 50 through the mounting holes 18, And the front portion of the reinforcing bar 40 is fixedly installed on the inner surface of the reinforcing bar 40 to remove the open portion of the protective cover 10b,
The protective cover 10b includes a first side portion 11 and a second side portion 11b. The first side portion 11 has a mounting hole 18 formed therein to close one side thereof. A second side surface portion 13 having a rear surface portion 12 and a mounting hole 18 formed to bend the other side end of the rear surface portion 12 to close the other side, A second upper surface portion 15a bent and extended to a position deviated from the upper center of the upper portion, a second lower surface portion 15b bent and extended to a position where the lower end of the second side surface portion 13 is out of the lower center, A first upper surface portion 14a bent and extended to cover and cover the upper portion of the second upper surface portion 15a and a lower end of the first side surface portion 11 cover the lower surface of the second lower surface portion 15b, And a first lower surface portion (14b) folded and extended so as to be closed. .
3. The method of claim 2,
The protection cover 10b is formed in a closed shape so as to be opened frontward so that the protective cover 10b can be inserted into the inside of the cover 10b. And a hole (31) are formed in the protective cover (30).
A reinforcing bar 40 installed on the front of the fire door 1 for reinforcing the door, and a fire door 1 installed inside the fire door. The fire door 1 is made up of a color door with color and pattern applied thereto, A cylinder 50 which is opened and closed by using a pair of door handles 60 and a protective cover 10c which is inserted into the inside of the fire door 1 by inserting the cylinder 50,
The protective cover 10c integrally bends the sheet metal processed to prevent diffusion into the inside of the fire door through the opened portion of the flame, And a pair of door handles 60 for operating the cylinder 50 installed inside are provided in the cylinder 50 through the mounting holes 18, And the front portion of the reinforcing bar 40 is fixedly installed on the inner surface of the reinforcing bar 40 to remove the open portion of the protective cover 10c,
The protective cover 10c includes an upper surface portion 14 disposed to close the upper surface portion 14, an upper extending portion 141 that bends both ends of the upper surface portion 14 downwardly, A rear side edge portion 121 bent at both side ends of the rear side portion 12 in the inward direction and bent at the other end of the rear side portion 12; And a lower extension portion 151 extending upwardly from both side ends of the lower surface portion 15 so as to extend upwardly from the upper extension portion 141, The extension length of the lower extension portion 121 and the lower extension portion 151 is formed to have a length that does not interfere with the door handle 60 when the cylinder 50 is engaged with the cylinder 50 so that the mounting holes 18 are naturally formed on both sides,
The protection cover 10c is formed in a closed box shape so that the front cover is opened to insert the protection cover 10c into the interior. Both sides of the protection cover 10c are connected to the installation hole 18 of the protective cover 10c, And a hole (31) are formed in the protective cover (30).
A reinforcing bar 40 installed on the front of the fire door 1 for reinforcing the door, and a fire door 1 installed inside the fire door. The fire door 1 is made up of a color door with color and pattern applied thereto, A cylinder 50 which is opened and closed by using a pair of door handles 60 and a protective cover 10d which is inserted into the inside of the fire door 1 by inserting the cylinder 50,
The protective cover 10d integrally bends the plate-shaped plate-shaped body to prevent diffusion into the inside of the fire door through the open portion of the flame, And a pair of door handles 60 for operating the cylinder 50 installed inside are provided in the cylinder 50 through the mounting holes 18, And the front portion of the reinforcing bar 40 is fixedly installed on the inner surface of the reinforcing bar 40 to remove the open portion of the protective cover 10d,
The protection cover 10d includes a top surface portion 14 disposed to close the top portion 14a, a rear surface portion 12 arranged to close the rear portion by bending the rear end of the top surface portion 14 in a semicircular shape, A lower portion 15 extending from the other end of the upper surface portion 14 and the lower surface portion 15 so as to close the lower portion of the upper surface portion 14, the rear surface portion 12 and the lower surface portion 15, (16) extending in a length that does not interfere with the coupling (60) when the coupling (60) is engaged and the mounting holes (18)
The protective cover 10d is inserted into the protective cover 10d so that the door handle 60 can be engaged with the attachment hole 18 of the protective cover 10d. And a hole (31) are formed in the protective cover (30).
3. The method according to claim 1 or 2,
The front and rear sides of the first and second side portions 11 and 13 are formed with a fitting portion 17 which is bent inward and then bent forward to be bent. The outer surface of the first and second side portions 11 and 13 and the outer surface of the reinforcing bar 40 are aligned with each other so as to contact the inner surface of the side plates of the fire door 1, And a protective cover for a fire door opening / closing cylinder
6. The method according to any one of claims 1 to 5,
A front plate 51 extending in the outward direction in front of the cylinder 5 and a cylinder fixing part 21 having a bolt hole 21a fixed by a bolt are formed in front of the upper face part 14 and the lower face part 15, ),
A bending ring 42 protruding in a conical shape is formed on the inner surface and the lower surface of the reinforcing bar 40 so as to be protected in a predetermined position And a reinforcing and securing part (22) formed with a fixing part (22a) for fixing the position to be fixed by a rivet or bolt after the cover (10a) (10c) (10d) is installed. cover.
The method according to claim 1,
On both sides of the protective cover 10a, the rails 32 are formed so as to protrude outward to improve the stiffness,
A slot (33) is formed in the inner side surface of the double protective cover (30) corresponding to the rail (32) so that the rail can be inserted,
The protective cover 10a allows the double protective cover 30 to be inserted in the correct position and prevents the flame which can permeate between the through hole 31 and the mounting hole 18 from being moved upward and downward after infiltration Wherein the protective cover is made of a synthetic resin.
The method of claim 3,
On both sides of the protective cover 10b, a rail 32 is formed so as to protrude outwardly to improve the stiffness,
A slot (33) is formed in the inner side surface of the double protective cover (30) corresponding to the rail (32) so that the rail can be inserted,
The protective cover 10b allows the double protective cover 30 to be inserted into the correct position and prevents the flame which can permeate between the through hole 31 and the mounting hole 18 from being moved upward and downward after infiltration Wherein the protective cover is made of a synthetic resin.
5. The method of claim 4,
On both sides of the protective cover 10c, the rails 32 are formed so as to protrude outwardly to improve the stiffness,
A slot (33) is formed in the inner side surface of the double protective cover (30) corresponding to the rail (32) so that the rail can be inserted,
The protective cover 10c allows the double protective cover 30 to be inserted into the correct position and prevents the flame which can permeate between the through hole 31 and the mounting hole 18 from being moved upward and downward after infiltration Wherein the protective cover is made of a synthetic resin.
6. The method of claim 5,
On both sides of the protective cover 10d, the rails 32 are formed so as to protrude outwardly to improve the stiffness,
A slot (33) is formed in the inner side surface of the double protective cover (30) corresponding to the rail (32) so that the rail can be inserted,
The protective cover 10d allows the double protective cover 30 to be inserted into the correct position and prevents the flame which can permeate between the through hole 31 and the mounting hole 18 from being moved upward and downward after infiltration Wherein the protective cover is made of a synthetic resin.
KR1020150184143A 2015-12-22 2015-12-22 Cylinder cover of fire prevention door KR101681168B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200490815Y1 (en) * 2019-05-14 2020-01-08 (주)동방파스텍 Door lock cylinder cover with cylinder holder
KR200494155Y1 (en) * 2021-04-23 2021-08-17 (주)동방파스텍 Positioning strike reinforcement for door frame strike installaion
KR20210130432A (en) 2020-04-22 2021-11-01 (주)삼영엔지니어링 Reinforcement frame for fire door and reinforcement structure of fire door frame using the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004076414A (en) * 2002-08-20 2004-03-11 Tadayoshi Sudo Lock attached base
KR101318839B1 (en) * 2012-09-25 2013-10-17 송주호 Cover, door lock installation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004076414A (en) * 2002-08-20 2004-03-11 Tadayoshi Sudo Lock attached base
KR101318839B1 (en) * 2012-09-25 2013-10-17 송주호 Cover, door lock installation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200490815Y1 (en) * 2019-05-14 2020-01-08 (주)동방파스텍 Door lock cylinder cover with cylinder holder
KR20210130432A (en) 2020-04-22 2021-11-01 (주)삼영엔지니어링 Reinforcement frame for fire door and reinforcement structure of fire door frame using the same
KR200494155Y1 (en) * 2021-04-23 2021-08-17 (주)동방파스텍 Positioning strike reinforcement for door frame strike installaion

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