KR101735968B1 - Protecting cover for door lock of a fire door - Google Patents

Protecting cover for door lock of a fire door Download PDF

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Publication number
KR101735968B1
KR101735968B1 KR1020150189041A KR20150189041A KR101735968B1 KR 101735968 B1 KR101735968 B1 KR 101735968B1 KR 1020150189041 A KR1020150189041 A KR 1020150189041A KR 20150189041 A KR20150189041 A KR 20150189041A KR 101735968 B1 KR101735968 B1 KR 101735968B1
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KR
South Korea
Prior art keywords
door
cover piece
cover
door lock
piece
Prior art date
Application number
KR1020150189041A
Other languages
Korean (ko)
Inventor
최재고
지춘자
Original Assignee
최재고
지춘자
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 최재고, 지춘자 filed Critical 최재고
Priority to KR1020150189041A priority Critical patent/KR101735968B1/en
Application granted granted Critical
Publication of KR101735968B1 publication Critical patent/KR101735968B1/en

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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/02—Casings of latch-bolt or deadbolt locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/10—Locks or fastenings for special use for panic or emergency doors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/40—Physical or chemical protection
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
    • E05Y2900/13—Type of wing
    • E05Y2900/132—Doors
    • E05Y2900/134—Fire doors

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Special Wing (AREA)

Abstract

According to the present invention, disclosed is a protecting cover for a door lock of a fire door capable of reinforcing a protecting function of a cylinder for the door lock, enabling the cylinder for the door lock to normally be operated for a predetermined time in case of fire. The protecting cover for the door lock is formed by being separated into a first cover piece and a second cover piece.

Description

{Protective cover for door lock of a fire door}

[0001] The present invention relates to a door lock protection cover for a fire door, and more particularly, to a door lock cover for a fire door which comprises a door handle, So that a space in which the door lock cylinder is mounted can be ensured, except that the surface of the door lock cylinder connected to the door lock cylinder is closed so that the heat insulating material filled in the door is prevented from flowing into the door lock It is possible to further strengthen the protection function of the door lock cylinder by preventing the deformation such as bending inward even if the impact force is applied from the side direction corresponding to the installation direction of the door handle, Hot heat is introduced into the door lock cylinder to cause a delay It is possible to prevent the deformation of the door lock cylinder due to the operation heat so that the normal operation of the door lock cylinder can be performed for a predetermined time even in the event of a fire and the door lock cylinder having different sizes can be inserted, To a door lock protecting cover of a fire door.

Generally, door handles rotated to the left and right are installed on the inside and outside of the fire door, and in the middle of the inside and outside door handles, the pawl protrudes outward from the side surface of the door in contact with the door frame And a door lock cylinder for controlling the open / closed state of the door is coupled.

In addition, a space for installing the door lock cylinder is secured in the inside of the fire door corresponding to the installation position of the door lock cylinder, and foreign matter such as debris or dust of the heat insulating material filled in the fire door is prevented from flowing into the door lock cylinder, A protective cover is inserted and installed so that an impact force externally applied is not directly applied to the door lock cylinder.

As an example of such a door lock protecting cover for a fire door, Korean Registration Patent Publication No. 10-1098880 (name: Key cylinder cover of door door of fire door, hereinafter referred to as "prior art") has been proposed.

As shown in FIG. 1, the prior art includes: a cover for protecting a key cylinder by being coupled to a cylinder bar installed on a fire door, the cover comprising: a cylinder bar having a locking protrusion that is bent outward at both sides; And a cover having a hook which is inserted into a guide groove of the cylinder bar to interpose a guide groove and prevents the guide bar from being separated downwardly on the guide groove and a reinforcing protrusion protruded to prevent the guide bar from being bent on both sides As a result, the cover for protecting the key cylinder is prevented from deviating up and down, and the effect of improving work convenience is avoided because welding is not performed.

However, the protective cover applied to the prior art has a "∩" shape in which the front surface and the upper and lower surfaces of the door lock, which constitute the door lock when viewed from above, are completely opened to communicate with the mounting space of the door lock cylinder There is a problem that foreign materials such as heat insulating material dust or dust filled in the inside of the fire door may flow into the inside of the protective cover to contaminate the door lock cylinder.

In the prior art, since the upper and lower surfaces of the protective cover are completely opened and the supporting force is lowered, the side portion of the protective cover can be easily bent inward when impact force is applied from the side direction corresponding to the installation direction of the door handle There is a problem that the door lock cylinder can not be properly protected.

Particularly, in the prior art, the upper and lower surfaces of the protective cover are completely opened. When a fire occurs, the hot air is instantly applied to the door lock cylinder through the opened upper and lower surfaces, and the door lock cylinder is deformed or damaged There is a serious problem that the door can not be opened and closed quickly in an emergency situation.

Further, in the prior art, since the through holes formed in the side surface portion of the protective cover are formed with a single diameter, there is a problem that the application range is very limited because it can not be applied to door locks having different diameters, such as wooden doors and door locks applied to screen doors.

Patent Document: Korean Registered Patent Publication No. 10-1098880, "Key cylinder cover of door lock door."

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a door lock device, which is inserted between inner and outer door handles in a state of being fitted in a fire door, The door is closed so that a space for mounting the cylinder can be ensured, except that the front surface of the door lock cylinder is closed and closed so that the heat insulating material filled in the door is prevented from flowing into the door lock cylinder Thereby providing a door cover for a new fire door.

Another object of the present invention is to reinforce the rigidity so as to prevent deformation such as bending inward even when the impact force is applied from the side direction corresponding to the installation direction of the door handle, thereby further enhancing the protecting function of the door lock cylinder So as to provide a door cover for a new fire door.

It is another object of the present invention to provide a door lock system which prevents hot air from entering the door lock cylinder at a time of fire and delayed introduction of the door lock cylinder to prevent deformation of the door lock cylinder due to hot heat, And to provide a door cover for a new fire door that allows normal operation of the cylinder.

It is another object of the present invention to provide a door lock cover for a new fire door, which can extend a range of application by fitting door locks having different sizes.

In order to achieve the above object, the present invention provides a fire door for securing a mounting space of a door lock cylinder coupled between inner and outer door handles in a state of being fitted in a fire door corresponding to an installation direction of inner and outer door handles Wherein the door lock protecting cover is divided into a first cover piece and a second cover piece having the same shape in which a through hole is formed in the center of a side surface portion so that the door lock cylinder can be inserted without interference; The first cover piece and the second cover piece are fastened in a state where they are opposed to each other so that a mounting space for a door lock cylinder is formed therein. The left and right side surfaces, the upper and lower surfaces and the rear surface are closed, Only the front surface to be operated is opened.

In the present invention, the rear cover is folded and formed from the rear end of the first cover piece and the second cover piece toward the center toward the rear, The first cover piece facing the first cover piece and the first cover piece facing the first cover piece are bent and bent toward the center of the first cover piece at a position symmetrical to each other when the first cover piece and the second cover piece, / RTI > The first cover piece and the second cover member are integrally formed at the other end of the upper and lower ends of the first cover piece and the second cover piece with a second fastening member which is riveted to the first fastening piece while the lower part of the first fastening piece is supported, And are bent and formed toward the center at positions symmetrical to each other.

In the present invention, the first cover piece corresponding to the right and left sides of the base portion of the second fastening piece and the first fastening piece superimposed on the upper portion of the second fastening piece are prevented from coming off from the fastening position at the upper and lower ends of the second cover piece A stopper is protruded.

The digital locking device provided on the outer surface of the fire door and the door lock cylinder mounted on the inner side of the protective cover are electrically connected to each other on the surface of one of the first fastening pieces formed on the upper and lower ends of the first cover piece or the second cover piece, And a wire guide hole for allowing a connecting wire to be drawn in is formed.

In the present invention, in order to fit a door lock cylinder applied to a wooden door or a screen door at the center of the upper and lower portions of the through-hole formed in the center portion of the side of the first cover piece and the second cover piece, And a groove having a large diameter is formed.

According to another aspect of the present invention, there is provided a door for a door lock, the door having a door handle, a protective cover fitted to the door for mounting the door lock cylinder therein, The upper and lower surfaces and the rear surface are closed. Therefore, the heat insulating material filled in the inside of the fire door does not flow into the door lock cylinder, thereby effectively preventing contamination of the door lock cylinder.

Further, in the present invention, the protective cover is divided into the first cover piece and the second cover piece, and the first and second cover pieces formed on the first cover piece and the second cover piece are overlapped with each other Since the upper and lower surfaces are tightly fastened to each other, the rigidity is greatly reinforced, and even if the impact force is applied from the side direction corresponding to the door handle installation direction, the side surface of the protective cover is not deformed There is an effect that the protecting function of the door lock cylinder is further strengthened.

In the present invention, since the left and right side surfaces, the upper and lower surfaces, and the rear surface of the protective cover are closed and only the front surface on which the lock connected to the door lock cylinder is operated to be opened is opened so that hot heat is instantly transmitted to the door lock cylinder The door lock cylinder can be prevented from being deformed due to hot heat while delayed entry, so that the normal operation of the door lock cylinder can be performed for a certain period of time even when a fire occurs.

According to the present invention, in the case where recesses having diameters larger than the diameter of the through holes are formed in the upper and lower centers of the through holes on the first cover piece and the second cover piece constituting the protective cover, The door lock cylinder having a size different from that of the door lock cylinder applied to the door lock cylinder can be inserted.

1 is an exploded perspective view showing a door lock protecting cover of a fire door according to the prior art
2 is an exploded perspective view showing a door lock protecting cover of a fire door according to the present invention.
3 is a perspective view illustrating a door lock cover of a fire door according to an embodiment of the present invention.
4 is a developed view of one side cover member constituting the door lock protecting cover of the fire door according to the present invention.
5 is a partially enlarged and separated perspective view illustrating a state in which a door lock protecting cover of a fire door according to the present invention is installed in a fire door.
6 is a partially enlarged perspective view showing a state in which a door handle is fitted in a fire door provided with a door lock protecting cover according to the present invention.
7 is a partially enlarged cross-sectional view showing the installation state of the door lock protecting cover of the fire door according to the present invention.

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

2 to 7, the door lock protecting cover 100 of the fire door according to the present invention is installed in the mounting space of the door lock cylinder 130 coupled between the inner and outer door handles 120 installed in the fire door 110, The door handle 120 is installed in the interior of the fire door 110 corresponding to the installation direction of the door handle 120. [

The door lock protecting cover 100 is divided into a first cover piece 140 and a second cover piece 140 'having the same size and shape. The first cover piece 140 and the second cover piece 140' Through-holes 141 and 141 'through which the door lock cylinder 130 is inserted without interference are formed at the center of the side portion of the cover piece 140'.

The first cover piece 140 and the second cover piece 140 'are coupled to each other in a state in which the first cover piece 140 and the second cover piece 140' are disposed facing each other to form a mounting space for the door lock cylinder 130 therein, The left and right side surfaces and the upper and lower surfaces and the rear surface of the door lock protecting cover 100 formed by the fastening of the piece 140 and the second cover piece 140 'are all closed and the catch 131 connected to the door lock cylinder 130, Only the front surface of the main body 100 is opened.

In order to cover the rear surface of the door lock protecting cover 100 of the fire door according to the present invention, the rear cover 140 and the rear cover 140 ' 142) 142 'are bent and formed.

In order to block the upper and lower surfaces of the door lock protecting cover 100 of the fire door according to the present invention, the first cover piece 140 and the second cover piece 140 ' The first fastening pieces 143 and 143 'that block the upper and lower surfaces when the cover piece 140 and the second cover piece 140' are fastened together are bent toward the center at positions symmetrical to each other .

At the same time, on the other side of the upper and lower ends of the first cover piece 140 and the second cover piece 140 ', when the first cover piece 140 and the second cover piece 140' are fastened, The first fastening pieces 143 and 143 'and the second fastening pieces 144 and 144' which are riveted to the first fastening pieces 143 and 143 ' .

In the present invention, the first cover piece 140 and the second cover piece 140 'corresponding to both the left and right sides of the base of the second fastening pieces 144 and 144' Stoppers 145 and 145 'that prevent the first fastening pieces 143 and 143' that are overlapped on the upper portions of the first and second fastening pieces 144 and 144 'from coming off the fastening position are protruded.

When the digital lock device is installed on the outer surface of the fire door 110, the door lock cylinder 130 mounted on the inside of the door lock protecting cover 100 is electrically connected to the digital lock device by electric wires. As shown in FIG. 4, in order to stably install the electric wire for electrically connecting the locking device and the door lock cylinder 130, the upper end of the first cover piece 140 or the upper end of the second cover piece 140 ' And a wire guide hole 146 may be formed on the surface of any one of the first fastening pieces 143 and 143 'formed at the lower end.

In the present invention, through-holes 141 and 141 'are formed in the upper and lower centers of the through-holes 141 and 141' formed at the side center portions of the first cover piece 140 and the second cover piece 140 ' The door locks 147 and 147 'having a diameter larger than the diameter of the through hole can be formed. In this case, the door lock or the door lock, which is applied to the wooden door or the screen door in which protrusions having diameters larger than the diameter of the through- So that it can be fitted.

The present invention is not limited thereto but may be applied to various kinds of doors such as front doors of general households and doors of various buildings.

The operation of the present invention is as follows.

2 and 3, when the door cover 100 according to the present invention is assembled, the first cover piece 140 and the second cover piece 140 ' The rear plate 141 on the first cover piece 140 and the rear plate 141 'on the second cover piece 140' are in close contact with each other.

At the same time, the first fastening pieces 143 bent toward the center from the upper and lower ends of the first cover pieces 140 are fastened to the second fastening pieces 144 And the first fastening piece 143 'bent from the upper end and the lower end of the second cover piece 140' toward the center thereof is folded toward the center from the upper end and the lower end of the first cover piece 140, The first fastening pieces 143 and 143 'and the second fastening pieces 144 and 144' are re-betted to each other in this state. As a result, as shown in FIG. 3 Likewise, the left and right side surfaces, the upper and lower surfaces, and the rear surface are both closed, and the door lock protecting cover 100 is formed in which only the front surface, on which the lock 131 connected to the door lock cylinder 130 is moved in and out, is opened.

As shown in FIGS. 5 to 7, the door lock protecting cover according to the present invention is installed in the inside of the fire door 110 corresponding to the position where the door handle 120 is installed. In this state, When the door lock cylinder 130 and the door handle 120 are aligned with each other through the through hole formed in the side surface of the cover 100, the door lock cylinder 130 is mounted inside the door lock protecting cover 100, The lock 131 connected to the cylinder 130 controls the opening and closing states of the fire door 110 while being operated in and out through the opened front face according to the turning operation of the door handle 120. [

When the door lock protecting cover 100 according to the present invention is applied to the fire door 110, the locks 131 connected to the door lock cylinder 130 are left and right, Foreign materials such as debris or dust, which are filled in the inside of the fire door 110, are prevented from flowing into the door lock cylinder 130, thereby preventing the door lock cylinder from being contaminated.

The first fastening pieces 143 and 143 'that block the upper and lower surfaces of the door lock protecting cover 100 are engaged with the second fastening pieces 144 and 144' Therefore, even if the impact force is applied from the lateral direction corresponding to the installation direction of the door handle 120, deformation such as bending of the side surface of the door protecting cover 100 does not occur, The protection function of the cylinder 130 is further enhanced.

In the present invention, since the left and right side surfaces, the upper and lower surfaces, and the rear surface of the door lock protecting cover 100 are closed and only the front surface on which the lock 131 constituting the door lock cylinder 130 is moved in and out is opened, Hot heat is effectively blocked by the door protecting cover 100 and is not immediately introduced into the door lock cylinder 130 but delayed to prevent deformation of the door lock cylinder 130 due to hot heat As a result, normal operation of the door lock cylinder 130 is performed for a predetermined time even when a fire occurs.

Meanwhile, the door lock cylinder applied to the wooden door or the screen door has protrusions larger than the diameter of the through holes 141 and 141 'at the upper and lower central portions thereof, and the protrusion of the door lock cylinder applied to the wooden door and the screen door When the protective cover according to the present invention is applied to the first cover piece 140 and the first cover piece 140 ', the projecting portion on the door lock cylinder is positioned above and below the center of the through holes 141 and 141' of the first cover piece 140 and the first cover piece 140 ' The door lock cylinder can be inserted into the inside of the protective cover 100 through the grooves 147 and 147 'formed in the door cover 150. Accordingly, the application range of the door lock cylinder greatly increases.

When a digital locking device is installed on the outer surface of the fire door 110 and is to be electrically connected to the door lock cylinder 130 mounted inside the door lock protecting cover 100, It is possible to guide the electric wire through the wire guide hole 146 formed on the surface of one of the first fastening pieces 143 and 143 'on the cover piece 140' .

delete

100: door cover of fire door
110: Fire door 120: Door handle
130: Door lock cylinder 131: Clamp
140: first cover piece 140 ': second cover piece
141, 141 ': through-hole 142, 142': rear plate
143, 143 ': first fastening piece 144, 144': second fastening piece
145, 145 ': Stopper 146:
147, 147 ': groove 150: insulation.

Claims (5)

The door lock cylinder 130, which is fitted in the inside of the fire door 110 corresponding to the installation direction of the inner and outer door handles 120 and is coupled between the inner and outer door handles 120 at the center of the side door, A first cover piece 140 and a second cover piece 140 'of the same shape in which the through holes 141 and 141' are formed so as to be fitted without the through holes 141 and 141 ' The first cover piece 140 and the second cover piece 140 'are coupled to each other with the first cover piece 140 and the second cover piece 140' opposed to each other, and a mounting space for the door lock cylinder 130 is formed therein. And a door 131 is opened and closed by the door 130. The door lock cover of the fire door is configured such that only the front face,
The rear cover 142 and the rear cover 142 'are bent and formed toward the center from the rear end of the first cover piece 140 and the second cover piece 140'
The upper and lower ends of the first cover piece 140 and the second cover piece 140 'which are opposed to each other at the upper and lower ends of the first cover piece 140 and the second cover piece 140' The first fastening pieces 143 and 143 'are bent toward the center at positions symmetrical to each other;
When the first cover piece 140 and the second cover piece 140 'are fastened to each other, the first fastening piece 143' is fastened to the other end of the upper and lower ends of the first cover piece 140 and the second cover piece 140 ' The second fastening pieces 144 and 144 'which are riveted to the first fastening pieces 143 and 143' are bent at a position symmetrical to the first fastening pieces 143 and 143 ' Wherein the door lock protector is a door lock protector. delete The method according to claim 1,
At the upper and lower ends of the first cover piece 140 and the second cover piece 140 'corresponding to both the right and left sides of the base of the second fastening pieces 144 and 144' Stoppers 145 and 145 'for preventing the first fastening pieces 143 and 143', which are overlapped on the upper portion 144 'of the first fastening piece 144', from coming off the predetermined fastening position are protruded. The method according to claim 1,
The first cover piece 140 or the second cover piece 140 'is installed on the outer surface of the fire door 110 on the surface of any one of the first engagement pieces 143 and 143' formed at the upper and lower ends of the first cover piece 140 or the second cover piece 140 ' Wherein a wire guide hole (146) is formed to allow a wire for electrically connecting the digital locking device and the door lock cylinder (130) mounted inside the door lock protecting cover (100) to be inserted. delete
KR1020150189041A 2015-12-29 2015-12-29 Protecting cover for door lock of a fire door KR101735968B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150189041A KR101735968B1 (en) 2015-12-29 2015-12-29 Protecting cover for door lock of a fire door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150189041A KR101735968B1 (en) 2015-12-29 2015-12-29 Protecting cover for door lock of a fire door

Publications (1)

Publication Number Publication Date
KR101735968B1 true KR101735968B1 (en) 2017-05-24

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Application Number Title Priority Date Filing Date
KR1020150189041A KR101735968B1 (en) 2015-12-29 2015-12-29 Protecting cover for door lock of a fire door

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Cited By (1)

* 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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010106540A (en) * 2008-10-30 2010-05-13 Jfe Jenzai Fence Kk Cylinder lock box

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010106540A (en) * 2008-10-30 2010-05-13 Jfe Jenzai Fence Kk Cylinder lock box

Cited By (1)

* 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

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