KR200349580Y1 - locking device for door - Google Patents

Abstract

In the door locking device for opening and closing the door by rotating the lever-type handles installed on the indoor and outdoor sides of the door, the opening and closing part for opening and closing the door and the latch part for locking and unlocking the door are separately separated on the upper and lower sides of the housing. Formed to maintain the unique function of the latch portion, while the locking device construction is convenient,

The door locking device according to the present invention, the inner and outer housings respectively installed on the indoor side and the outdoor side of the door,

A lever-type indoor and outdoor handles rotatably coupled to the inner and outer housings to open and close the door during rotation;

The latch is locked to the locking piece installed on the door frame by the locking button fixed on the lower side of the inner housing and coupled to the same axis of the indoor and outdoor handles, and the locking of the latch from the locking piece by the key inserted in the lower side of the outer housing. The latch holder is released.

Description

Locking device for door

The present invention is a door locking device for opening and closing the door by the rotation of the lever-type handles respectively installed on the indoor side and the outdoor side of the door, the door latch unit (latch) and the opening and closing the door locking device to be used It is about.

More specifically, the door locking device for opening and closing the door and the latch portion for locking and unlocking the door separately formed on the upper and lower sides of the housing separately to maintain the unique function of the latch portion, the door locking device for convenient construction will be.

As shown in FIG. 1, the door locking apparatus according to the prior art includes a lever-type indoor handle 2 installed at an indoor side and an outdoor side of the door 1 to open and close the door 1 according to rotation. It is installed in the housing 4 coupled to the outdoor handle 3 and the through hole (not shown) of the door 1 and detachably locked and unlocked to the engaging piece (not shown) installed in the door frame. The latch 5 is provided.

6 is a key insertion hole into which a key (not shown) is inserted so as to release the locked state of the latch 5.

In the conventional door locking device, as the key insertion hole 6 for releasing the locking state of the latch 5 is integrally formed on the lever-type handles 2 and 3 for opening and closing the door 1, the locking device is integrated. Installation work on the door (1) is difficult to request a professional to install the construction due to the installation cost, the user has to bear the double burden.

In addition, since the opening and closing portion for opening and closing the door 1 and the latch portion for locking and unlocking the door 1 are integrally formed on the handles 2 and 3, the cost of the cost increases due to the complicated structure of the locking device. Since the shape and shape of the lever-type handles 2 and 3 and the locking device as a whole cannot be freely molded, there is a problem in that appearance and merchandise are poor.

An object of the present invention, the opening and closing portion for opening and closing the door and the latch portion for locking and unlocking the door is installed separately on the upper side and the lower side of the door separately installed on the indoor and outdoor side of the door due to the simplified structure of the locking device It is to provide a door locking device to reduce the cost and have a competitive price.

Another object of the present invention is to provide a door locking device that is easy to install the locking device to the door can be installed by the user to provide convenience to the user.

Still another object of the present invention is to provide a door locking device that can freely manufacture the shape and shape of the lever-type handle and the locking device as a result of separately molding the door opening and closing part and the latching part so as to improve the appearance and commerciality. .

1 is a schematic view of a door locking device according to the prior art,

2 is an exploded perspective view of the door locking device according to the present invention,

Figure 3 (a, b) is a plan view of the locking portion of the door locking device according to the present invention,

Figure 4 is a state diagram of use of the door locking device according to the present invention.

* Explanation of symbols used in the main part of the drawing

10; door

20; Inner housing

21; Inner plate

30; Outer housing

31; Outer plate

40; Interior side handle

40a; boss

50; Outdoor side handle

51; Spindle

60; Lock button

70; Jam

80; Latch

90; key

100; Latch holder

110; Shroud

An object of the present invention described above, and the inner and outer housings respectively installed on the indoor side and the outdoor side of the door,

A lever-type indoor and outdoor handles rotatably coupled to the inner and outer housings to open and close the door during rotation;

The latch is locked to the locking piece installed on the door frame by the locking button fixed on the lower side of the inner housing and coupled to the same axis of the indoor and outdoor handles, and the locking of the latch from the locking piece by the key inserted in the lower side of the outer housing. It is achieved by providing a door locking device characterized in that it has a latch holder is released.

According to a preferred embodiment, the above-described inner housing,

An inner plate coupled to the inner housing,

A rocker seated on top of the inner plate and coupled to the spindle of the outdoor handle;

A locking piece seated on the lower side of the inner plate so as to be locked and unlocked with a rocker;

It is coupled to the extension of the lock button and the key to detach the locker by moving the locking piece in the vertical direction when the lock button is rotated,

An elastic member whose one end is fixed to the key and the other end is fixed to the inner plate and which holds the key on the inner plate;

It includes a cover fixed to the inner plate surface.

In addition, the above-mentioned inner plate is formed of a synthetic resin material.

In addition, the rocker and the groove formed on one side of the locking piece to correspond to the rocker having a trapezoidal shape to facilitate attachment and detachment of the above-described rocker, and the cam formed on the key is formed on the left and right inlet side of the engaging groove of the locking piece to be detachably coupled to the rocker. A pressing surface for pressing the locking piece is provided to maintain the locking and unlocking state of the locking piece.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to be described in detail so that those skilled in the art to which the present invention pertains can easily carry out the present invention. It does not mean that the technical spirit and scope of the invention is limited.

As shown in Fig. 2 and 3, the door locking device according to the present invention, the inner housing 20 and the outer housing 30, which are respectively installed opposite to the indoor side and the outdoor side of the door 10,

It is rotatably coupled to the through-holes 20a and 30a formed on the inner housing 20 and the outer housing 30, the lever-shaped interior handle 40 and the outdoor handle 40 to open and close the door 10 during the rotation ( 50),

The door frame is coupled by the locking button 60 coupled to the same axis of the interior handle 40 and the outdoor handle 50 by the through groove 100a and coupled to the through hole 20b under the inner housing 20. The latch 80 is locked to the locking piece 70 installed in the lock piece (not shown), and the unlocking bar 130 is coupled to the key 90 inserted through the through hole 30b in the lower portion of the outer housing 30. As the locking state of the lock button 60 is released by the rotation of the latch holder 100, the latch 80 is released from the locking piece 70.

At this time, the above-described inner housing 20,

An inner plate 21 coupled to the inner housing 20 and formed of a synthetic resin material;

A rocker 22 seated on the inner plate 21 and coupled to the spindle 51 of the outdoor handle 50 by a through groove 22a,

A locking piece 23 movably seated in a vertical direction under the inner plate 21 so as to be locked and unlocked with the rocker 22,

A key 24 coupled to the extension piece 61 of the lock button 60 and moving the locking piece 23 in the up and down direction when the lock button 60 is rotated, and detaching from the locker 22;

One end is fixed to the key 24 and the other end is fixed to the inner plate 21, the elastic member 25 for mounting the key 24 to the inner plate 21, and

It includes a cover (not shown) fixed to the inner plate 21 surface.

In addition, the grooves 23a formed on one side of the locking piece 23 to correspond to the rocker 22 having a trapezoidal shape so as to be easily detached from the rocker 22 described above;

The cam 24a extending to the key 24 is formed at the left and right inlet sides of the engaging groove 23a of the locking piece 23 to which the key 24 is detachably coupled, and locking and locking of the locking piece 23 to the locker 22. Pressing surfaces 23c and 23d are provided to press the locking piece 23 to maintain the released state.

110 is a protective plate fixed to the outer surface of the door 10 in which the latch holder 100 is installed, and 120 is a latch box which is fixed to the door frame inside the locking piece 70 to lock the latch 80. S1 is a screw for fixing the inner plate 21 to the inner surface of the door 10, S2 is a screw for fixing the outer plate 31 to the outer surface of the door 10, S3 is a locking piece 70 to the door frame It is a screw to fix, S4 is a screw to fix the protection plate 110 to the door (10).

Hereinafter, the process of fixing the door locking device of the present invention to the door will be described in more detail with reference to the accompanying drawings.

As shown in FIG. 2, the above-described latch holder 100 is coupled to a through hole (not shown) formed at one side of the door 10, and the inner surface of the door 10 is centered on the latch holder 100. The inner plate 21 and the outer plate 31 are fixed to the and outer surfaces by screws S1 and S2, respectively.

At this time, the boss 21a protruding from the inner plate 21 is supported through the through hole 100b of the latch holder 100 and coupled to the through hole 31a of the outer plate 31. . The inner housing 20 and the outer housing 30 are fitted to the inner plate 21 and the outer plate 31, respectively.

The above-described spindle 51 of the outdoor handle 50 passes through the through hole 30a of the outer housing 30, through hole 31b of the outer plate 31, and through hole 100a of the latch holder 100. After passing through the through groove 21b of the inner plate 21, the boss 40a of the interior handle 40 passes through the through hole 20a of the inner housing 20, and then ends with the end of the spindle 51. Engage the coupling grooves H of the boss 40a.

At this time, the unlocking bar 130 of the outer plate 31 described above is coupled to the coupling groove (not shown) of the key 24 of the inner plate 21.

The protection plate 110 is fixed as a screw S4 to the outside of the door 100 to which the latch holder 100 is fixed. In addition, the latch box 120 is coupled to the door frame (not shown) facing the latch holder 100, and the locking piece 70 is fixed to the outside of the latch box 120 as a screw S3.

The operation of the door locking device according to the present invention will be described in more detail with reference to the accompanying drawings.

As shown in FIGS. 2 to 4, the door 10 may be opened and closed according to the rotation of the indoor handle 40 and the outdoor handle 50 which are fixed to the indoor side and the outdoor side of the door 10 described above. Can be.

In detail, as shown by a dotted line in FIG. 4, when the indoor handle 40 is rotated clockwise in the drawing with the boss 40a as the central axis [in this case, the outdoor handle 50 is used. Is rotated at the same time in the counterclockwise direction], the latch 80 is rotated inside the latch holder 100 by the rotation of the spindle 51 of the outdoor handle 50 coupled to the through groove 100a of the latch holder 100. Since it is introduced into and separated from the locking piece 70, the door 10 can be freely opened.

A case in which the above-described door 10 is to be locked and unlocked will be described with reference to the accompanying drawings.

As shown by arrows in FIGS. 3 (b) and 4, when the locking button 60 is rotated counterclockwise in the above-described door 10, the inner plate 21 is movable. The engaged locking piece 23 is moved upward to engage the rocker 22.

In detail, as the cam 24a of the key 24 coupled to the back of the lock button 60 rotates in the clockwise direction, the cam 24a engages the engaging groove 23b of the locking piece 23. ) Is coupled to the rocker 22 by moving the locking piece 23 upward. As a result, since the latch 80 is held by the latching piece 70, the door 10 is locked.

At this time, the end of the cam (24a) described above by pressing the pressing surface (23c) formed on the inlet side of the engaging groove (23b) to maintain the locked state of the rocker 22 and the locking piece (23), Even when the indoor handle 40 or the outdoor handle 50 is rotated on the indoor side or the outdoor side, the door 10 cannot be opened.

A case in which the locking state of the above-described lock button 60 is to be released will be described with reference to the accompanying drawings.

As shown in FIGS. 2 and 3 (a), the counter 90 is inserted into the key 90 through the through hole 30b in the lower portion of the outer housing 30 described above on the outdoor side of the door 10. In the case of rotating in the direction, as the locking button 60 coupled to the end of the unlocking bar 130 fixed to the lower side of the outer plate 31 rotates, the cam 24a described above is counterclockwise in the drawing. It rotates and disengages from the pressing surface 23c of the locking piece 23, and comes into close contact with the mating pressing surface 23d.

Thus, since the locking piece 23 returns to the lower direction of the initial position in the inner plate 21, the locking state of the lock button 60 is released.

Therefore, the door 10 may be opened by rotating the above-described indoor handle 40 or the outdoor handle 50.

As described above, the door locking device according to the present invention has the following advantages.

As the door opening and closing portions of the door are separately formed on the upper and lower sides of the housing, the locking device has a cost competitiveness due to the simple structure of the locking device, thereby reducing the cost and supplying the user at a low cost.

In addition, the construction work is easy to install the locking device on the door can be installed directly by the user can provide convenience and economy to the user.

In addition, by separately molding the door opening and closing portion and the latch portion, it is possible to freely manufacture the shape and shape of the lever-type handle and the locking device as a whole to improve the appearance and merchandise of the door locking device.

Claims (4)

Inner and outer housings respectively installed on the indoor side and the outdoor side of the door; A lever-type indoor and outdoor handles rotatably coupled to upper portions of the inner and outer housings to open and close the doors when rotated; And The latch is locked to the locking piece installed on the door frame by a lock button fixed to the lower side of the inner housing and coupled to the same axis of the indoor and outdoor handles, and to the locking piece by a key inserted into the lower housing. And a latch holder from which the locking of the latch is released. The method of claim 1, wherein the inner housing; An inner plate coupled to the inner housing; A rocker seated on an upper side of the inner plate and coupled to a spindle of the outdoor handle; A locking piece seated on the lower side of the inner plate so as to be locked and unlocked with the rocker; A key coupled to the extension piece of the lock button and moving the locking piece up and down in a vertical direction when the lock button is rotated; An elastic member, one end of which is fixed to the key and the other end of which is fixed to the inner plate, and which holds the key on the inner plate; And And a cover fixed to the inner plate surface. The door locking device according to claim 2, wherein the inner plate is formed of a synthetic resin material. The groove according to claim 2, wherein the groove is formed to correspond to the rocker having a trapezoidal shape on one side of the locking piece to facilitate attachment and detachment of the rocker; And Is formed on the left and right inlet side of the engaging groove of the locking piece to be detachably coupled to the cam extending to the key, and provided with a pressing surface for pressing the locking piece to maintain the locking and unlocking state of the locking piece to the locker Door locking device characterized in that.