CN111577016B

CN111577016B - Automatic unlocking type door lock insert of latch bolt

Info

Publication number: CN111577016B
Application number: CN202010076802.6A
Authority: CN
Inventors: 池荧珍
Original assignee: Elensys Co Ltd
Current assignee: Elensys Co Ltd
Priority date: 2019-02-15
Filing date: 2020-01-23
Publication date: 2021-09-24
Anticipated expiration: 2040-01-23
Also published as: CN111577016A

Abstract

The present invention relates to a latch bolt automatic unlocking type door lock insert, and more particularly, to a latch bolt automatic unlocking type door lock insert having the following features: the latch bolt is automatically unlocked by the motor, so that the fixing bolt and the latch bolt can be automatically unlocked by the motor to simply open the door even if a user does not operate the handle.

Description

Automatic unlocking type door lock insert of latch bolt

Technical Field

The present invention relates to a latch bolt automatic unlocking type door lock insert, and more particularly, to a latch bolt automatic unlocking type door lock insert which: the latch bolt is automatically unlocked by the motor, so that the fixing bolt and the latch bolt can be automatically unlocked by the motor even if a user does not operate the handle, and the door can be easily opened.

Background

In general, a door lock insert includes a latch bolt that is protruded and introduced to a side surface of a door by a rotating unit such as a lever. The latch bolt is a unit for preventing the door from being automatically opened (i.e., performing only a closing function), and is not a locking unit. Therefore, a door lock insert (Mortise) provided with a dead bolt locked and unlocked by a knob (knob) or a grip (grip) and implementing a locking structure by a latch bolt and the dead bolt has also been developed and used.

In addition, a digital door lock insert has been developed and used in which a key input button is pressed on the outside of a door or a security key having a built-in semiconductor chip is used, and when the button is pressed on the inside of the door, a locking bolt is released by power of a motor. In the case of such a digital door lock insert, even if a user forgets to lock the door, it is convenient because the dead bolt is automatically moved to the locked position by the power of the motor after the door is closed. Of course, the digital door lock insert may also be inserted with a key to release the deadbolt.

In the case of such a digital door lock insert, even if a user does not hold a key, the user can unlock the lock by inputting the key, and the lock is automatically locked when the door is closed, so that it is safe and convenient, and thus the demand thereof is rapidly increased as the awareness is gradually spread.

In the case of the conventional door lock insert, when the door is opened, the latch is unlocked by driving of the motor (when the door is opened from the inside, the motor is driven by pressing the button, and the motor is driven by pressing the key input button or using the safety key from the outside) and the handle is operated alone to unlock the latch bolt and open the door, which is a problem that it is troublesome and takes a long time to open the door.

On the other hand, a conventional technology related to a door lock insert is disclosed in korean laid-open patent No. 10-2014-0111560 and the like.

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made to solve the above-mentioned problems of the conventional art, and an object of the present invention is to provide a latch bolt automatic unlocking type door lock insert which: the latch bolt is automatically unlocked by the motor, so that the fixing bolt and the latch bolt can be automatically unlocked by the motor even if a user does not operate the handle, and the door can be easily opened.

The problems to be solved by the present invention are not limited to the above-described problems, and other technical problems not mentioned herein will be clearly understood by those skilled in the art from the following description.

Means for solving the problems

The latch bolt automatic unlocking type door lock insert according to the present invention for achieving the above object is characterized by comprising: a latch bolt which is drawn out or introduced from the front of the main body to prevent the door from being opened by itself and maintains a closed state, and is formed with a protrusion; a latch lever having a rotation restricting portion for restricting or allowing rotation of the latch bolt by pressing or releasing the protrusion of the latch bolt and a pressing portion for rotating the rotation restricting portion by moving forward and backward by an external force; a driven gear integrally formed with a pressing protrusion for moving the pressing portion of the latch lever forward and backward; and a 2 nd gear box which is formed with a 2 nd motor and a 2 nd drive gear for transmitting a rotational force of the 2 nd motor to the driven gear, wherein the 2 nd drive gear and the driven gear rotate by the driving of the 2 nd motor to move the pressing protrusion, the latch lever, and the pressing portion forward, thereby disengaging the rotation restricting portion of the latch lever from the protrusion of the latch bolt to allow the rotation of the latch bolt.

In this case, the latch bolt automatic unlocking type door lock insert is characterized in that a spring is formed in the pressing portion, and when the 2 nd motor is reversely rotated and the pressing protrusion of the driven gear is separated from the pressing portion of the latch lever, the pressing portion is moved backward by an elastic force of the spring, and the rotation restricting portion of the latch lever presses the protrusion of the latch bolt to restrict the rotation of the latch bolt.

In addition, the latch bolt automatic unlocking type door lock insert is characterized in that a cam is integrally formed at one side of the driven gear, and a limiting part for limiting the rotation radius of the cam is formed at both ends of the cam.

In order to achieve the above object, the latch bolt automatic unlocking type door lock insert according to the present invention includes: a latch bolt drawn out or introduced from the front of the main body to prevent the door from being opened by itself to maintain a closed state; a dead bolt which is drawn out and drawn in from the front of the body to lock and unlock the door and is integrally formed with a slider linearly moving forward and backward by the rotation of a 1 st dead bolt draw bar and a 2 nd dead bolt draw bar; a 1 st handle block and a 3 rd handle block integrally formed to be simultaneously rotated by a certain angle by the action of the push-pull handle; a latch lever which restricts or allows the rotation of the latch bolt; an emergency lever which is abutted against the 3 rd handle block and rotates, thereby rotating the 1 st and 2 nd dead bolt draw bars and the latch lever; and a draw bar which makes the protrusion and the stopping protrusion formed on the left and the right with the hinge axis formed at the center as the center move up and down oppositely, when the push-pull handle is operated, the 3 rd handle block rotates to rotate the emergency rod, the emergency rod rotates the 1 st fixing bolt draw bar and the 2 nd fixing bolt draw bar to draw the fixing bolt into the front part of the main body, and then rotates the latch rod to allow the rotation of the latch bolt.

In this case, the latch bolt automatic unlocking type door lock insert is characterized in that a locking unit is integrally formed at one side of the 3 rd handle block, and the locking unit is stopped by a stopper protrusion of the draw bar, thereby restricting the rotation of the panic lever and maintaining the rotation allowable state of the latch bolt.

In addition, the automatic type lock pin that unlocks of latch bolt is characterized in that, above-mentioned lock pin still includes: and a 2 nd handle block which rotates the panic lever in a clockwise direction or a counterclockwise direction by rotation of the key.

In addition, the automatic type lock pin that unlocks of latch bolt is characterized in that, above-mentioned lock pin still includes: and a sub-lock which is drawn in and out from the front part of the main body to detect the closed and opened states of the door, and which is formed with a pressing protrusion which pushes and lowers the protrusion of the draw bar in a horizontal direction, and the pressing protrusion lowers the protrusion of the draw bar to raise the stopper protrusion of the draw bar, thereby releasing the stopper protrusion and the stopper of the locking unit.

In order to achieve the above object, the latch bolt automatic unlocking type door lock insert according to the present invention includes: a latch bolt which is drawn out or introduced from the front of the main body to prevent the door from being opened by itself and maintains a closed state, and is formed with a protrusion; a dead bolt which is drawn out and drawn in from the front of the body to lock and unlock the door and is integrally formed with a slider linearly moving forward and backward by the rotation of a 1 st dead bolt draw bar and a 2 nd dead bolt draw bar; a latch lever that rotates about a rotation shaft to press the protrusion of the latch bolt or to be separated from the protrusion of the latch bolt, thereby restricting or allowing the rotation of the latch bolt; an emergency lever for rotating the 1 st and 2 nd deadbolt draw rods and the latch lever; a 1 st handle block, a 2 nd handle block and a 3 rd handle block which rotate the emergency lever; and a draw bar which moves a protrusion and a stopping protrusion formed on the left and right around a hinge shaft formed at the center in the opposite directions to each other, rotates the 2 nd handle block or the 3 rd handle block, rotates the panic bar, rotates the 1 st dead bolt draw bar and the 2 nd dead bolt draw bar to draw the dead bolt into the front portion of the body, and then rotates the latch bar to allow the rotation of the latch bolt.

In this case, the latch bolt automatic unlocking type door lock insert is characterized in that the latch lever is formed with: a rotation restricting portion that restricts or allows rotation of the latch bolt by pressing or separating the protruding portion of the latch bolt from the protruding portion of the latch bolt; and a pressing part which moves forward and backward by an external force to separate the rotation restricting part from the protruding part of the latch bolt or to press the protruding part of the latch bolt.

Effects of the invention

According to the present invention, the latch bolt is automatically unlocked by the motor, so that the dead bolt and the latch bolt can be automatically unlocked by the motor even if the user does not operate the handle, and the door can be easily opened.

Further, when the user operates the push-pull handle internally or inserts the key externally and rotates, the 3 rd and 2 nd handle blocks rotate the panic lever, and the panic lever rotates to rotate the 1 st and 2 nd deadbolt draw bars and the latch lever to unlock the deadbolt and the latch bolt, so that the user can unlock the deadbolt and the latch bolt immediately by the handle or the key, thereby opening the door quickly.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned herein can be clearly understood by those skilled in the art from the description of the claims.

Drawings

Fig. 1 is an external perspective view of a door lock insert of an embodiment of the present invention.

Fig. 2 is a perspective view showing an internal structure of a door lock insert of an embodiment of the present invention.

Fig. 3 is a partially enlarged view of a door lock insert of an embodiment of the present invention.

Fig. 4 is a view showing how the latch lever is rotated to restrict and allow the rotation of the latch bolt in the door lock insert according to the embodiment of the present invention.

Fig. 5 is a diagram showing a coupling relationship of the 1 st handle block, the 2 nd handle block, and the 3 rd handle block in the door lock insert according to the embodiment of the present invention.

Fig. 6 to 10 are views showing the unlocking operation of the dead bolt and the latch bolt by the motor in the door lock insert according to the embodiment of the present invention.

Fig. 11 to 15 are views showing the unlocking operation of the dead bolt and the latch bolt by the operation of the push handle in the door lock insert according to the embodiment of the present invention.

Fig. 16 to 20 are views showing the unlocking operation of the dead bolt and the latch bolt by the key in the door lock plug according to the embodiment of the present invention.

Fig. 21 is a perspective view showing an internal structure of a door lock insert according to another embodiment of the present invention.

Description of the symbols

10: shell body

20: front part of the main body

100: latch bolt

110: stop projection

120: projection part

130: spring

140: 2 nd gear box

141: no. 2 motor

142: 2 nd driving gear

143: driven gear

144: cam wheel

145: restricting part

150: frame structure

151: trough

200: fixing bolt

201: sliding block

202: long hole

203: probe unit

210: no. 1 dead bolt traction rod

211: no. 2 dead bolt traction rod

213: fixed bolt traction gear

220: 2 nd gear box

221: no. 1 motor

222: 1 st drive gear

300: sub-lock

301: spring

302: pressurizing projection

303: probe unit

400: emergency rod

410: spring

600: draw bar

601: stop projection

602: projection part

603: spring

604: hinge axis

700: latch lever

701: rotating shaft

710: lower end stop projection

720: rotation restricting part

730: pressurization part

740: spring

800：PCB

810: opening detection sensor

820: closure detection sensor

830: sub-lock detection sensor

910: 1 st handle block

911: 1 st combination hole

920: 2 nd handle block

921: the 2 nd combining hole

922: guiding groove

930: no. 3 handle block

931: no. 3 combining hole

932: locking unit

< Another embodiment >

210: dead bolt traction rod

204: slider slot

500: auxiliary fixing bolt

510: advancing and retreating block

520: rotary block

530: torsion spring

Detailed Description

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. However, although some of the structures that are not related to the gist of the present invention will be omitted or compressed, the omitted structures are not necessarily unnecessary for the present invention, and may be used in combination by those skilled in the art.

Fig. 1 is an external perspective view of a door lock insert according to an embodiment of the present invention, fig. 2 is a perspective view showing an internal structure of the door lock insert according to the embodiment of the present invention, fig. 3 is a partially enlarged view of the door lock insert according to the embodiment of the present invention, fig. 4 is a view showing how a latch lever is rotated to restrict and allow rotation of a latch bolt in the door lock insert according to the embodiment of the present invention, fig. 5 is a view showing a coupling relationship of a 1 st handle block, a 2 nd handle block and a 3 rd handle block in the door lock insert according to the embodiment of the present invention, fig. 6 to 10 are views showing unlocking operations of a dead bolt and a latch bolt by a motor in the door lock insert according to the embodiment of the present invention, fig. 11 to 15 are views showing unlocking operations of a dead bolt and a latch bolt by operation of a push-pull handle in the door lock insert according to the embodiment of the present invention, and fig. 16 to 20 are views showing unlocking operations of a dead bolt and a latch bolt by a push-pull handle in the door lock insert according to the embodiment of the present invention Drawing a graph.

As shown in fig. 1 to 20, the door lock insert according to the embodiment of the present invention includes a housing 10, a body front 20, a latch bolt 100, a 1 st gear case 220 and a 2 nd gear case 140, a dead bolt 200, a sub-lock 300, a 1 st handle block 910, a 2 nd handle block 920 and a 3 rd handle block 930, and a PCB 330.

The housing 10 protects various structures of the door lock insert, and is installed at the door. Further, a key hole through which a user inserts a key to open the door outdoors and a key input portion or a card contact portion for releasing the latch bolt 100 and the dead bolt 200 are installed outside the outdoor side of the housing 10.

A push-pull handle (not shown) for a user to release the latch bolt 100 and the dead bolt 200 in the room is provided at the indoor side of the case 10, a conversion rotation shaft (not shown) for converting a force of pushing or pulling the push-pull handle (not shown) into a rotational force is formed inside the case 10, and when the push-pull handle (not shown) is pushed or pulled, a thrust force is converted into a rotational force by the conversion rotation shaft (not shown), and the 1 st handle block 910 and the 3 rd handle block 930 to be described later are rotated. Since such a conversion rotation axis (not shown) is a known technique, detailed description thereof is omitted.

The body front portion 20 is formed to face a striker plate (not shown) which is a side surface of the case 10, and is formed with a drawing hole through which the latch bolt 100, the dead bolt 200, and the sub-lock 300 are drawn.

The latch bolt 100 serves to prevent the door itself from being opened to maintain a closed state, and is protrudingly formed to allow the latch bolt 100 to be linearly introduced while abutting against the doorframe when the door is closed from the opened state.

As shown in fig. 3 and 4, the latch bolt 100 includes: a stopper protrusion 110 elastically supported by a spring 130 formed at the rear surface, and abutting against the inner surface of the body front portion 20 at one of both side surfaces to prevent the latch bolt 100 from being separated to the outside of the body front portion 20; and a protrusion 120 that abuts against the rotation restricting portion 720 of the latch lever 700 to restrict the rotation of the latch bolt 100.

As shown in fig. 4 (a), the pressurizing portion 730 is pushed open by the elastic force of the spring 740 formed in the pressurizing portion 730 of the latch lever 700, and the latch lever 700 rotates clockwise on the drawing about the rotation shaft 701, so that the rotation restricting portion 720 of the latch lever 700 is drawn through the groove 151 of the frame 150, and when the lower end surface of the rotation restricting portion 720 comes into contact with the upper end surface of the protrusion 120 of the latch bolt 100, the rotation of the latch bolt 100 is restricted, and as shown in fig. 4 (b), the spring 740 is pressurized by the pressurizing portion 730 of the latch lever 700 by an external force, and the latch lever 700 rotates counterclockwise on the drawing about the rotation shaft 701, and when the rotation restricting portion 720 of the latch lever 700 is disengaged from the protrusion 120 of the latch bolt 100, the rotation of the latch bolt 100 is allowed. In this case, in the present invention, a reinforcing member is formed between the upper end surface and the lower end surface of the rotation restricting portion 720 of the latch lever 700 to prevent the rotation restricting portion 720 from being deformed or damaged due to repeated use. Specifically, in the case where an empty space is formed between the upper end surface and the lower end surface of the rotation restricting part 720, the rotation restricting part 720 continuously receives a force by the protrusion 120 of the latch bolt 100 and is deformed and twisted or, in a severe case, is broken, whereas in the present invention, a reinforcing material is formed between the upper end surface and the lower end surface of the rotation restricting part 720, thereby increasing the strength of the rotation restricting part 720, and even if a force is continuously applied by the protrusion 120 of the latch bolt 100, it is possible to prevent the deformation or the breakage.

Further, the pressing portion 730 of the latch lever 700 is moved forward and backward by the pressing protrusion 146 integrally formed with the driven gear 143 rotated by receiving a rotational force by the second motor 141 and the second drive gear 142, which will be described later, and thus the pressing portion 730 of the latch lever 700 is moved forward by the rotation of the pressing protrusion 146, the latch lever 700 is rotated about the rotation shaft 701, and the rotation restricting portion 720 of the latch lever 700 is disengaged from the protrusion 120 of the latch bolt 100, thereby rotating the latch bolt 100. The specific description thereof will be described later.

The dead bolt 200 is drawn out and drawn in through a drawing hole of the body front 20 to lock or unlock the door, and a slider 201 is integrally formed at a rear surface of the dead bolt 200, and the slider 201 is linearly moved forward and backward by a 1 st dead bolt pulling rod 210 and a 2 nd dead bolt pulling rod 211 rotated by an external force or power to draw in and draw out the dead bolt 200 from the body front 20.

The 2 nd deadbolt pulling rod 211 has its distal end drawn into a long hole 202 formed in the slider 201, and the 1 st deadbolt pulling rod 210 abuts on a panic lever 400 described later.

Accordingly, when the 1 st and 2 nd

deadbolt pulling rods

210 and 211 receive the driving force of the 1 st motor 221, which will be described later, and rotate in the clockwise or counterclockwise direction on the drawing, the tip of the 2 nd deadbolt pulling rod 211 moves to the upper or lower end along the long hole 202 of the slider 201 to push or pull the slider 201 forward or backward, thereby drawing or retracting the deadbolt 200. When the panic lever 400 described later abuts on the 1 st and 3 rd handle blocks 910 and 930 rotated by the operation of the push-pull handle (not shown) of the user or the 2 nd handle block 920 rotated by the operation of the key and is rotated, the 1 st dead bolt pulling rod 210 abutting on the panic lever 400 is rotated and the 2 nd dead bolt pulling rod 211 is rotated at the same time to move the tip of the 2 nd dead bolt pulling rod 211 along the long hole 202 of the slider 201 toward the lower end, thereby drawing in the dead bolt 200. The operation of drawing in and out the fixing pin 200 will be described in detail later.

On the other hand, a torsion spring 230 is coupled to one side of the 2 nd deadbolt pulling rod 211, and the torsion spring 230 is compressed and rotated in the direction opposite to the direction in which the elastic force of the torsion spring 230 acts at the initial stage of the rotation of the 2 nd deadbolt pulling rod 211 by exerting the elastic force as in a general spring, so that the 2 nd deadbolt pulling rod 211 is slowly rotated by the elastic force, and thus when the 2 nd deadbolt pulling rod 211 is rotated by a certain angle in the process in which the deadbolt 200 is slowly pulled in, the torsion spring 230 is immediately extended, and the 2 nd deadbolt pulling rod 211 is also rapidly rotated in accordance with the rotation, so that the deadbolt 200 is immediately pulled in. That is, when the anchor 200 is drawn in by a user's operation of a push-pull handle (not shown) or a key, the anchor is gradually drawn in at an initial stage, and then immediately after the anchor is drawn in a predetermined distance, the entire area of the anchor 200 is drawn in through the introduction hole of the body front portion 20.

The sub-lock 300 is drawn in and out from the main body front 20 to detect the closed and opened states of the door, and a space for drawing in the sub-lock 300 is not formed in the door frame, so that the sub-lock 300 is drawn in the main body front 20 when the door is closed, and is drawn out from the main body front 20 by the elastic force of the spring 301 formed at the rear when the door is opened. Further, a pressing protrusion 302 for pressing a protrusion 602 of a draw bar 600 described later to lift the stopper protrusion 601 of the draw bar 600 is formed on one side of the side surface of the sub-lock 300. The specific description thereof will be described later.

A device for controlling the deadbolt 200 and the latch bolt 100 by automatically driving the 1 st drive gear 222 and the 2 nd drive gear 142 while confirming the open and closed state of the door is provided between the deadbolt 200 and the sub-lock 300.

That is, the PCB800 includes an open detection sensor 810, a close detection sensor 820 and a sub-lock detection sensor 830, the slider 201 and the sub-lock 300 are respectively formed with

detection portions

203 and 303, and when the slider 201 moves forward and the dead bolt 200 is drawn out, the detection portion 203 is positioned on the close detection sensor 820, and when the close detection sensor 820 detects this and determines that the dead bolt 200 is drawn out, and when the slider 201 moves backward and the dead bolt 200 is drawn in, the detection portion 203 is positioned on the open detection sensor 810, and when the open detection sensor 810 detects this and determines that the dead bolt 200 is drawn in.

Further, when the sub-lock 300 is introduced and the detecting part 303 is separated from the sub-lock detecting sensor 830, the sub-lock detecting sensor 830 determines that the door is closed, and when the sub-lock 300 is introduced and the detecting part 303 comes into contact with the sub-lock detecting sensor 830, the sub-lock detecting sensor 830 determines that the door is opened.

The 1 st gear box 220 and the 2 nd gear box 140 include the 1 st motor 221 and the 2 nd motor 141, and the 1 st drive gear 222 and the 2 nd drive gear 142, respectively, and the 1 st drive gear 222 and the 2 nd drive gear 142, which rotate upon receiving the rotational force of the 1 st motor 221 and the 2 nd motor 141, respectively, are engaged with the driven gear 143 integrally formed with the dead bolt traction gear 213 and the pressing protrusion 146, and rotate together. Thus, when the 1 st drive gear 222 and the dead bolt drawing gear 213 are rotated by the driving of the 1 st motor 221, the 1 st dead bolt drawing rod 210 and the 2 nd dead bolt drawing rod 211 integrally formed with the dead bolt drawing gear 213 are rotated together, whereby the tip of the 2 nd dead bolt drawing rod 211 moves up and down from the elongated hole 202 of the slider 201, and the dead bolt 200 integrally formed with the slider 201 and the slider 201 is drawn in and out from the body front portion 20.

When the 2 nd driving gear 142 and the driven gear 143 are rotated by the driving of the 2 nd motor 141, the pressurizing protrusion 146 integrally formed with the driven gear 143 is rotated together, and thus the pressurizing portion 730 of the latch lever 700 is moved forward and backward, and the latch lever 700 is rotated around the rotation shaft 701, and the rotation restricting portion 720 of the latch lever 700 pressurizes or releases the pressurizing of the protrusion 120 of the latch bolt 100, thereby restricting or allowing the rotation of the latch bolt 100. At this time, the cam 144 is integrally formed with the driven gear 143, and the restricting portions 145 are formed at both ends of the cam 144 at a predetermined distance from each other, so that the restricting portions 145 restrict the rotation radius of the cam 144, thereby restricting the rotation radii of the driven gear 143 and the pressing protrusion 146.

As shown in fig. 5, the 1 st handle block 910, the 2 nd handle block 920 and the 3 rd handle block 930 are coupled to the 1 st handle block 910 and the 3 rd handle block 930 by coupling pins 940 to be integrally rotated, the 2 nd handle block 920 is inserted between the 1 st handle block 910 and the 3 rd handle block 930 to be coupled, a guide groove 922 which is not in contact with the 2 nd handle block 920 and is independently rotated when the handle blocks 910 and the 3 rd handle block 930 are rotated is formed in the 2 nd handle block 9201, and a locking unit 932 is formed in the 3 rd handle block 930. The 1 st handle block 910, the 2 nd handle block 920 and the 3 rd handle block 930 are coupled on a concentric circle in the order of the 1 st handle block 910, the 2 nd handle block 920 and the 3 rd handle block 930 from a position close to the outdoor side, the 2 nd handle block 920 is formed with a 2 nd coupling hole 921 in a polygonal form to be coupled to an outdoor conversion rotation shaft connected to a key when a user uses the key, the 3 rd handle block 930 is formed with a 3 rd coupling hole 931 in a polygonal form to which the indoor conversion rotation shaft is coupled, and the 1 st handle block 910 is formed with a 1 st coupling hole 911 having the same shape and size as the 3 rd coupling hole 931 and not coupled with any component.

The indoor conversion rotary shaft is a member that converts a force of pressing or pulling a push-pull handle of the door lock cylinder into a rotational force of the 3 rd handle block 930 by a push-pull type operation to rotate the 1 st handle block 910 integrally coupled to the 3 rd handle block 930, and the outdoor conversion rotary shaft is a member that is connected to a key and rotates together with the rotation of the key.

The outdoor conversion rotation shaft is installed and coupled to the 2 nd coupling hole 921, the indoor conversion rotation shaft is installed and coupled to the 3 rd coupling hole 931, and the key is connected to the outdoor conversion rotation shaft. Therefore, when the key is inserted from the outside and rotated, only the outdoor conversion rotation shaft and the 2 nd handle block 920 coupled to the outdoor conversion rotation shaft are rotated, and when the push-pull handle (not shown) is pushed or pulled, the indoor conversion rotation shaft is rotated together with the 3 rd handle block 930 coupled to the indoor conversion rotation shaft and the 1 st handle block 910 integrally coupled to the 3 rd handle block 930.

With such a configuration, when a user rotates the indoor rotation shaft by pushing or pulling the push-pull handle (not shown) in the indoor space, the 2 nd handle block 920 rotates the 3 rd handle block 930 in a fixed state, and at this time, the 3 rd handle block 930 is connected to the 1 st handle block 910 and rotates together therewith, the 3 rd handle block 930 rotates clockwise in the drawing to rotate the emergency lever 400 in contact therewith, and the emergency lever 400 rotated by the 3 rd handle block 930 abuts the 1 st deadbolt pulling rod 210 and rotates the 1 st deadbolt pulling rod 210 counterclockwise in the drawing.

Accordingly, the 2 nd deadbolt pulling bar 211 integrally formed to rotate simultaneously with the 1 st deadbolt pulling bar 210 also rotates simultaneously, whereby the tip of the 2 nd deadbolt pulling bar 211 moves downward along the long hole 202 of the slider 201 to draw the deadbolt 200 into the body front portion 20, and then the panic lever 400 further rotates clockwise in the drawing to abut against the lower end stopper projection 710 of the latch lever 700 to rotate the latch lever 700 centering on the rotation shaft 701 to disengage the rotation restricting portion 720 from the protrusion 120 of the latch bolt 100, thereby allowing the rotation of the latch bolt 100. At this time, as shown in fig. 2, the panic lever 400 abuts on the 1 st dead bolt drawing rod 210 to be spaced apart from the lower end stopping protrusion 710 of the latch lever 700 by a certain distance, so that after the introduction of the dead bolt 200 is completed, the panic lever 400 and the lower end stopping protrusion 710 of the latch lever 700 come into contact, thereby unlocking the latch bolt 100, and the

elastic springs

410 and 740 are formed at the panic lever 400 and the latch lever 700, respectively, thereby automatically re-positioning the panic lever 400 and the latch lever 700 at the home position by the elastic force when the external force is removed.

Further, as the 3 rd handle block 930 is rotated, the locking unit 932 formed integrally with the 3 rd handle block 930 is also rotated in the clockwise direction in the drawing, and moves from the right side to the left side of the stopper projection 601 of the draw bar 600 in the drawing.

Further, as shown in fig. 14, since the draw bar 600 moves up and down the left and right protrusions 602 and the stopper projection 601 in opposite directions to each other around the hinge shaft 604 at the center as a center like a seesaw (that is, the stopper projection 601 descends when the protrusion 602 ascends and the stopper projection 601 ascends when the protrusion 602 descends), and a spring 603 is formed at the lower end of the protrusion 602, the protrusion 602 always keeps the ascending state and the stopper projection 601 descends when no external force is applied, the right side of the stopper projection 601 of the draw bar 600 is formed in a gently curved shape in the drawing, and the left side of the stopper projection 601 of the draw bar 600 is formed in a straight shape in the drawing, so that the lock unit 510 can move from the right side to the left side of the stopper projection 601 in the drawing but cannot move from the left side to the right side of the stopper projection 601 in the drawing in the state that the stopper projection 601 descends, and can be moved only if the stopper projection 601 is raised.

With the above-described configuration, even when the 3 rd handle block 930 is pushed open by the resilient force of the spring 410 in a state where the lock unit 932 is moved from the right side to the left side of the stopper projection 601 of the draw bar 600 in the drawing in which the lock unit 932 is moved from the right side to the left side of the stopper projection 601, the lock unit 932 is stopped by the left side of the stopper projection 601 to be in a locked state in which the 3 rd handle block 930 formed integrally with the lock unit 932, the panic lever 400, the 1 st dead bolt draw bar 210 abutting against the panic lever 400, and the latch lever 700 are all restricted from rotating by the lock unit 932 stopped at the left side of the stopper projection 601, and the drawn-in state of the dead bolt 200 and the unlocked state of the latch bolt 100 are continued.

Thereafter, when the sub-lock 300 is pulled out, the pressing projection 302 of the sub-lock 300 presses the protrusion 602 of the draw bar 600 to the lower end and lowers the same, whereby the stopper projection 601 on the opposite side rises and the stopper state of the unlocking unit 932 is released, and the 3 rd handle block 930 is brought into a rotatable state, whereby the panic lever 400 is rotated by the elastic force of the spring 410 and brought into contact with the 3 rd handle block 930 to rotate the 3 rd handle block 930, and the locking unit 932 is moved rightward from the left side of the stopper projection 601 in the drawing.

Further, as the panic lever 400 is rotated counterclockwise in the drawing by the spring 410 to return to the home position, the panic lever 400 and the 1 st dead bolt traction lever 210 are separated from each other and the 1 st dead bolt traction lever 210 and the 2 nd dead bolt traction lever 211 are rotated to be in a state in which the dead bolt 200 can be drawn out by the driving of the 1 st motor 221, and the lower end stopper projection 710 of the panic lever 400 and the latch lever 700 are separated from each other, whereby the latch lever 700 is rotated, and the latch lever 700 is rotated clockwise in the drawing by the elastic force of the spring 740 formed at the pressing portion 730 of the latch lever 700 and the rotation restricting portion 720 of the latch lever 700 is drawn in through the side groove 151 of the frame 150, thereby pressing the protrusion 120 of the latch bolt 100 and restricting the rotation of the latch bolt 100.

On the other hand, when the user inserts the key outdoors and rotates the key, the 1 st handle block 910 and the 3 rd handle block 930 are fixed, and only the 2 nd handle block 205 to which the outdoor conversion rotation shaft is coupled rotates together with the key. At this time, the 2 nd handle block 920 is rotated in a clockwise direction or a counterclockwise direction on the drawing according to a direction in which the user rotates the key in the present invention. That is, when the user rotates the key in a clockwise direction or a counterclockwise direction according to convenience, the 2 nd handle block 920 is rotated in a clockwise direction or a counterclockwise direction to rotate the panic lever 400.

According to such a configuration, when a user inserts a key outdoors and rotates, the 1 st handle block 910 and the 3 rd handle block 930 are in a fixed state, only the 2 nd handle block 920 rotates clockwise or counterclockwise in the drawing to rotate the emergency lever 400 in contact therewith, and the emergency lever 400 rotated by the 2 nd handle block 920 contacts the 1 st deadbolt pulling bar 210 to rotate the 1 st deadbolt pulling bar 210 counterclockwise in the drawing.

Accordingly, the 2 nd deadbolt pulling bar 211 integrally formed by rotating simultaneously with the 1 st deadbolt pulling bar 210 rotates simultaneously and moves downward along the long hole 202 of the slider 201 to draw the deadbolt 200 into the body front portion 20, and then the panic lever 400 further rotates clockwise in the drawing, abuts against the lower end stopper projection 710 of the latch lever 700 to rotate the latch lever 700 around the rotation shaft 701 to disengage the rotation restricting portion 720 from the protrusion 120 of the latch bolt 100, thereby allowing the rotation of the latch bolt 100. At this time, as shown in fig. 2, the panic lever 400 abuts on the 1 st dead bolt draw bar 210 and is spaced apart from the lower end stop protrusion 710 of the latch lever 700 by a certain distance, so that when the introduction of the dead bolt 200 is completed, the panic lever 400 and the lower end stop protrusion 710 of the latch lever 700 come into contact to unlock the latch bolt 100, the

elastic springs

410 and 740 are formed at the panic lever 400 and the latch lever 700, respectively, and when the external force is removed, the panic lever 400 and the latch lever 700 automatically return to the original positions by the elastic force.

Thereafter, when the user rotates the key to the home position again, the 2 nd handle block 920 is also simultaneously rotated to return to the home position, thereby being away from the panic lever 400, whereby the panic lever 400 is also rotated again in the counterclockwise direction on the drawing to return to the home position by the elastic force of the spring 410.

Further, the panic lever 400 is rotated counterclockwise in the drawing by the spring 410 to return to the home position, the panic lever 400 and the 1 st dead bolt traction lever 210 are separated from each other, the 1 st dead bolt traction lever 210 and the 2 nd dead bolt traction lever 211 are rotated, and the state in which the dead bolt 200 is drawn out by the driving of the 1 st motor 221 is configured, the panic lever 400 and the lower end stopper protrusion 710 of the latch lever 700 are separated from each other to rotate the latch lever 700, and the latch lever 700 is rotated clockwise in the drawing by the elastic force of the spring 740 formed at the pressing portion 730 of the latch lever 700, and the rotation restricting portion 720 of the latch lever 700 is drawn in through the lateral groove 151 of the frame 150 to press the protrusion 120 of the latch bolt 100, and the rotation of the latch bolt 100 is restricted.

The door lock insert according to the embodiment of the present invention described above can be further embodied by the following description of the operation procedure.

Next, the operation of the door lock insert when the door is opened from the outside through the key input unit and the card contact unit will be described in detail with reference to fig. 6 to 10.

As shown in fig. 6, when the dead bolt 200 is drawn out by closing the door so that a number is inputted or a card is brought into contact with a card contact portion through a key input portion in order to open the door from the outside in a state where the rotation of the latch bolt 100 is restricted in a locked state, as shown in fig. 7, the 1 st motor 221 is first driven and the 1 st drive gear 222 and the dead bolt drawing gear 213 are rotated, whereby the 1 st dead bolt drawing rod 210 and the 2 nd dead bolt drawing rod 211 integrally formed with the dead bolt drawing gear 213 are rotated in a counterclockwise direction in the drawing together with the drawing, whereby the tip of the 2 nd dead bolt drawing rod 211 moves from the long hole 202 of the slider 201 to the lower end, and the slider 201 and the dead bolt 200 integrally formed therewith are drawn into the body front portion 20, thereby unlocking the dead bolt 200.

When the open detection sensor 810 detects the release of the dead bolt 200 as the dead bolt 200 is drawn in, the 2 nd motor 141 is driven to rotate the 2 nd driving gear 142 and the driven gear 143, and the pressing protrusion 146 integrally formed with the driven gear 143 is rotated together with the rotation of the 2 nd motor 141 to move the pressing portion 730 of the latch lever 700 forward, so that the latch lever 700 is rotated in the counterclockwise direction on the drawing about the rotation shaft 701, and the rotation restricting portion 720 of the latch lever 700 is disengaged from the protrusion 120 of the latch bolt 100 to release the pressing, thereby allowing the rotation of the latch bolt 100.

Thereafter, as shown in fig. 8, when a user pulls the door to open the door outdoors, a latch plate (not shown) of the door pushes out the latch bolt 100 by the pulling force of the user, and thus the rotatable latch bolt 100 is rotated in a counterclockwise direction and introduced into the inside of the door lock insert.

As shown in fig. 9, when the door is completely opened to release the user's pulling force, the latch bolt 100 and the sub-lock 300 are drawn out from the main body front 20 by the elastic restoring force of the

respective springs

130 and 301, the detector 303 of the sub-lock 300 is brought into contact with the sub-lock detection sensor 830, and when the sub-lock detection sensor 830 detects that the door is opened, first, the 2 nd motor 141 reverses the direction to reverse the 2 nd driving gear 142 and the driven gear 143, thereby, the pressing protrusion 146 is rotated counterclockwise on the drawing to return to the home position, the force applied to the pressing portion 730 of the latch lever 700 by the pressing protrusion 146 is released, and the pressing portion 730 is moved backward by the elastic restoring force of the spring 740, so that the latch lever 700 rotates in a clockwise direction on the drawing, the rotation restricting part 720 pressurizes the protrusion 120 of the latch bolt 100 to restrict the rotation of the latch bolt 100.

Thereafter, when the door is closed again, the latch bolt 100 applies force to the inclined surface opposite to when the door is opened. That is, the latch plate of the door collides with the inclined surface of the latch bolt 100 to apply a force pushing the latch bolt 100 inward of the door lock insert, so that the spring 130 is pushed rearward, and the latch bolt 100 is linearly inserted into the housing 10 without rotating. When the door is completely closed, the latch bolt 100 is re-protruded to the groove of the doorframe by the force of the spring 130.

Further, when the sub-lock 300 is introduced into the main body front 20, whereby the detecting portion 303 of the sub-lock 300 is separated from the sub-lock detecting sensor 830, and it is detected by the sub-lock detecting sensor 830 that the door is closed, as shown in fig. 10, the 1 st motor 221 is first driven to rotate the 1 st drive gear 222 and the dead bolt drawing gear 213, whereby the 1 st dead bolt drawing bar 210 and the 2 nd dead bolt drawing bar 211 integrally formed with the dead bolt drawing gear 213 are rotated together in the clockwise direction on the drawing, whereby the distal end of the 2 nd dead bolt drawing bar 211 moves to the upper end in the long hole 202 of the slider 201, whereby the slider 201 and the dead bolt 200 integrally formed therewith are drawn out from the main body front 20, and the door becomes a locked state.

Next, a process of operating the door lock cylinder when the push-pull handle (not shown) is pushed or pulled to open the door in the room will be described with reference to fig. 11 to 15.

As shown in fig. 11, when the latch 200 is drawn out to be in a locked state and the rotation of the latch bolt 100 is restricted in a state where the door is closed and the push-pull handle (not shown) of the door is pushed or pulled to open the door indoors, as shown in fig. 12, the 3 rd handle block 930 is rotated clockwise in the drawing to rotate the emergency lever 400 in abutment, and the emergency lever 400 rotated by the 3 rd handle block 930 is brought into abutment with the 1 st latch drawing rod 210 to rotate the 1 st latch drawing rod 210 counterclockwise in the drawing.

Thereby, the 2 nd deadbolt pulling bar 211 integrally formed to rotate simultaneously with the 1 st deadbolt pulling bar 210 rotates simultaneously, so that the tip of the 2 nd deadbolt pulling bar 211 moves downward along the long hole 202 of the slider 201 to draw the deadbolt 200 into the body front portion 20, and then the panic lever 400 further rotates clockwise on the drawing to abut against the lower end stopper projection 710 of the latch lever 700, thereby rotating the latch lever 700 counterclockwise on the drawing centering on the rotation shaft 701 to disengage the rotation restricting portion 720 from the protrusion 120 of the latch bolt 100, thereby allowing the rotation of the latch bolt 100. At this time, as shown in fig. 11, the panic lever 400 abuts on the 1 st dead bolt draw bar 210 and is spaced apart from the lower end stopper protrusion 710 of the latch lever 700 by a certain distance, so that after the introduction of the dead bolt 200 is completed, the panic lever 400 and the lower end stopper protrusion 710 of the latch lever 700 come into contact to unlock the latch bolt 100.

Further, as the 3 rd handle block 930 is rotated, the locking unit 932 integrally formed at the 3 rd handle block 930 is also rotated in the clockwise direction in the drawing, and moves from the right side to the left side of the stopper projection 601 of the draw bar 600 in the drawing.

Accordingly, in a state where the locking unit 932 is moved from the right side to the left side of the stopper projection 601 of the drawbar 600 in the drawing, even if the 3 rd handle block 930 is pushed away by the panic lever 400 by the elastic force of the spring 410, the locking unit 932 is stopped by the left side of the stopper projection 601 to be in a locking state that cannot be passed, in such a locked state, the rotation of the 3 rd handle block 930, the panic lever 400, the 1 st deadbolt pull rod 210 abutting the panic lever 400, and the latch lever 700 integrally formed with the lock unit 932 is restricted by the lock unit 932 stopped at the left side of the stopper projection 601, the drawn-in state of the deadbolt 200 and the unlocked state of the latchbolt 100 are continuously maintained, and then, as shown in fig. 13, the striker plate (not shown) of the door pushes the latchbolt 100 open by the pushing force of the user, whereby the rotatable latch bolt 100 is rotated in a counterclockwise direction to be introduced into the inside of the door lock insert.

As shown in fig. 14, when the door is completely opened, the sub-lock 300 is drawn out from the body front portion 20 by the elastic restoring force of the spring 301, the pressing protrusion 302 of the sub-lock 300 pushes the protrusion 602 of the draw bar 600 in the horizontal direction to be lowered, the stopper protrusion 601 on the opposite side is raised to release the stopper state of the unlocking unit 932, the 3 rd handle block 930 is brought into a rotatable state, and the panic lever 400 is rotated by the elastic force of the spring 410 to abut against the 3 rd handle block 930 to rotate the 3 rd handle block 930, whereby the locking unit 932 gets over from the left side to the right side of the stopper protrusion 601 in the drawing.

Further, as the panic lever 400 is rotated counterclockwise in the drawing by the spring 410 to return to the home position, the panic lever 400 and the 1 st dead bolt pulling lever 210 are separated from each other, the 1 st dead bolt pulling lever 210 and the 2 nd dead bolt pulling lever 211 are rotated, and the dead bolt 200 is drawn out by the driving of the 1 st motor 221, and the lower end stopper projection 710 of the panic lever 400 and the latch lever 700 are separated from each other, so that the latch lever 700 is rotated, and the latch lever 700 is rotated clockwise in the drawing centering on the rotation shaft 701 by the elastic force of the spring 740 formed at the pressing portion 730 of the latch lever 700, and the rotation restricting portion 720 of the latch lever 700 presses the protrusion 120 of the latch bolt 100 to restrict the rotation of the latch bolt 100.

Thereafter, when the door is closed again, the latch bolt 100 applies force to the inclined surface opposite to when the door is opened. That is, the strike plate of the door collides with the inclined surface of the latch bolt 100, and a force pushing the latch bolt 100 toward the inside of the door lock insert is applied, thereby pushing the spring 130 rearward, and the latch bolt 100 linearly enters the inside of the case 10 without rotating. When the door is completely closed, the latch bolt 100 is re-protruded toward the slot of the doorframe by the force of the spring 130.

Further, when the sub-lock 300 is introduced into the main body front 20, whereby the detecting portion 303 of the sub-lock 300 is separated from the sub-lock detecting sensor 830 and separated, and thus the sub-lock detecting sensor 830 detects that the door is closed, as shown in fig. 15, first the 1 st motor 221 is driven, whereby the 1 st drive gear 222 and the dead bolt drawing gear 213 are rotated, whereby the 1 st dead bolt drawing bar 210 and the 2 nd dead bolt drawing bar 211 integrally formed with the dead bolt drawing gear 213 are rotated together in the clockwise direction on the drawing, whereby the tip of the 2 nd dead bolt drawing bar 211 is moved upward in the long hole 202 of the slider 201, so that the slider 201 and the dead bolt 200 integrally formed therewith are drawn out from the main body front 20, and thus the door becomes a locked state.

Next, a process in which the door lock cylinder is operated when a user inserts a key from the outside and rotates the key in order to open the door indoors will be described with reference to fig. 16 to 20.

As shown in fig. 16, when the door is closed and the dead bolt 200 is drawn out to be in a locked state and the user inserts a key to open the door outdoors and rotates in a state where the rotation of the latch bolt 100 is restricted, as shown in fig. 17, the 2 nd handle block 920 rotates clockwise or counterclockwise in the drawing along the direction in which the user rotates the key, thereby rotating the abutted panic lever 400, and the panic lever 400 rotated by the 2 nd handle block 920 abuts the 1 st dead bolt draw bar 210 and rotates the 1 st dead bolt draw bar 210 counterclockwise in the drawing.

Accordingly, the 2 nd deadbolt pulling bar 211 integrally formed to rotate simultaneously with the 1 st deadbolt pulling bar 210 rotates simultaneously to move the tip of the 2 nd deadbolt pulling bar 211 downward along the long hole 202 of the slider 201 to draw the deadbolt 200 into the body front portion 20, and then the panic lever 400 further rotates clockwise on the drawing to abut against the lower end stopper projection 710 of the latch lever 700, thereby rotating the latch lever 700 counterclockwise on the drawing centering on the rotation shaft 701, thereby disengaging the rotation restricting portion 720 from the protruding portion 120 of the latch bolt 100 to allow the rotation of the latch bolt 100. At this time, as shown in fig. 16, the panic lever 400 abuts on the 1 st dead bolt draw bar 210 and is spaced apart from the lower end stopper projection 710 of the latch lever 700 by a certain distance, and therefore, after the introduction of the dead bolt 200 is completed, the panic lever 400 and the lower end stopper projection 710 of the latch lever 700 come into contact to unlock the latch bolt 100.

In the above state, since the user rotates the key until the door is completely opened, the 2 nd handle block 920 is also fixed in a rotated state to restrict the rotation of the panic lever 400 and the 1 st deadbolt pulling rod 210 and the latch lever 700 abutting against the panic lever 400, thereby continuing the drawn-in state of the deadbolt 200 and the unlocked state of the latchbolt 100, and then as shown in fig. 18, the latchbolt 100 is pushed open by a strike plate (not shown) of the door by the pushing force of the user, whereby the rotatable latchbolt 100 is rotated counterclockwise and drawn into the inside of the door lock cylinder.

When the door is completely opened and the user rotates the key again to the home position, as shown in fig. 19, the 2 nd handle block 920 is also rotated at the same time to return to the home position, so that the 2 nd handle block 920 and the panic lever 400 are separated from each other and the panic lever 400 is rotated in the counterclockwise direction on the drawing to return to the home position, so that the panic lever 400 and the 1 st dead bolt drawing bar 210 are separated from each other, whereby the 1 st dead bolt drawing bar 210 and the 2 nd dead bolt drawing bar 211 can be rotated to be in a state of drawing out the dead bolt 200 by the driving of the 1 st motor 221, and as the panic lever 400 and the lower end stopping protrusion 710 of the latch lever 700 are separated from each other, the latch lever 700 can be rotated so that the latch lever 700 is rotated in the clockwise direction on the drawing centering on the rotation axis 701 by the elastic force of the spring 740 formed at the pressing part 730 of the latch lever 700, so that the rotation restricting part 720 of the latch lever 700 presses the protrusion 120 of the latch bolt 100 to restrict the rotation of the latch bolt 100.

Thereafter, when the door is closed again, the latch bolt 100 applies force to the inclined surface opposite to when the door is opened. That is, the strike plate of the door collides with the inclined surface of the latch bolt 100, and a pushing force toward the inside of the door lock insert is applied to the latch bolt 100, so that the latch bolt 100 linearly enters the inside of the case 10 without rotating as the spring 130 is pushed backward. When the door is completely closed, the latch bolt 100 protrudes again toward the slot of the doorframe by the force of the spring 130.

Further, when the sub-lock 300 is introduced into the main body front 20, whereby the sensing part 303 of the sub-lock 300 is separated from the sub-lock sensing sensor 830 and the closing of the door is sensed by the sub-lock sensing sensor 830, 6, as shown in fig. 20, first, the 1 st motor 221 is driven, whereby the 1 st driving gear 222 and the dead bolt drag gear 213 are rotated, whereby the 1 st dead bolt drag lever 210 and the 2 nd dead bolt drag lever 211 integrally formed with the dead bolt drag gear 213 are rotated together in a clockwise direction on the drawing to move the tip of the 2 nd dead bolt drag lever 211 to the upper end in the long hole 202 of the slider 201, thereby drawing out the slider 201 and the dead bolt 200 integrally formed therewith from the main body front 20, and the door becomes a locked state.

On the other hand, fig. 21 is a perspective view showing an internal structure of a door lock insert of another embodiment of the present invention.

Next, a door lock insert according to another embodiment of the present invention will be described with reference to fig. 21, and for convenience of description, the same structure as that of the above embodiment will not be described.

As shown in fig. 21, a door lock insert according to another embodiment of the present invention includes a housing 10, a body front 20, a latch bolt 100, a 1 st gear case 220 and a 2 nd gear case 140, a dead bolt 200, an auxiliary dead bolt 500, a sub-lock 300, a 1 st handle block 910, a 2 nd handle block 920 and a 3 rd handle block 930, and a PCB330, and the housing 10, the body front 20, the latch bolt 100, the 1 st gear case 220 and the 2 nd gear case 140, and the PCB330 are the same as those of the previously described embodiments, and thus detailed description thereof is omitted.

The dead bolt 200 is drawn out and drawn in through the drawing hole of the body front 20 to lock or unlock the door, and a slider 201 that linearly moves forward and backward by a dead bolt pulling rod 210 that rotates according to an external force or power to draw in and draw out the dead bolt 200 from the body front 20 is integrally formed at the rear of the dead bolt 200.

The deadbolt pull rod 210 is introduced into the slider slot 204 formed in the slider 201 and the deadbolt pull rod 210 is formed to engage the panic lever 400.

Thus, when the dead bolt pulling bar 210 receives the driving force of the 1 st motor 221 and rotates clockwise or counterclockwise in the drawing, the dead bolt pulling bar 210 moves along the slider groove 204 of the slider 201 and abuts against the inner side surface of the slider groove 204 to push the slider 201 forward or backward, thereby drawing in or drawing out the dead bolt 200. When the panic lever 400 is rotated by abutting the 1 st and 3 rd handle blocks 910 and 930 rotated by the operation of the push-pull handle (not shown) of the user or the 2 nd handle block 920 rotated by the operation of the key, the dead bolt draw bar 210 abutting the panic lever 400 is rotated and moved along the slider groove 204 of the slider 201 to draw in the dead bolt 200.

Among the 1 st handle block 910, the 2 nd handle block 920 and the 3 rd handle block 930, the 1 st handle block 910 and the 3 rd handle block 930 are integrally coupled and simultaneously rotated, the 2 nd handle block 920 is inserted between coupling intervals of the 1 st handle block 910 and the 3 rd handle block 930, and protrusions are formed in both directions at one side of the 2 nd handle block 920 and the 3 rd handle block 930, thereby rotating in both directions of the clockwise direction and the counterclockwise direction to rotate the panic lever 400.

With such a configuration, when a user pushes or pulls a push-pull handle (not shown) indoors, the 2 nd handle block 920 is in a fixed state and the 3 rd handle block 930 is rotated, and at this time, the 3 rd handle block 930 is rotated together with the 1 st handle block 910 because the 3 rd handle block 930 is connected thereto, the 3 rd handle block 930 is rotated clockwise or counterclockwise in the drawing to rotate the emergency lever 400 in contact therewith, and the emergency lever 400 rotated by the 3 rd handle block 930 is brought into contact with the dead bolt pulling rod 210 to rotate the dead bolt pulling rod 210 counterclockwise in the drawing.

Thereby, the dead bolt pulling bar 210 moves along the slider groove 204 of the slider 201, and thus abuts against the right inner wall of the slider groove 204 in the drawing, thereby drawing the dead bolt 200 into the body front portion 20, and then the panic lever 400 further rotates clockwise in the drawing to abut against the lower end stopper projection 710 of the latch lever 700, thereby rotating the latch lever 700 centering on the rotation shaft 701, thereby disengaging the rotation restricting portion 720 from the protrusion 120 of the latch bolt 100, thereby allowing the rotation of the latch bolt 100.

Thereafter, the panic lever 400 is rotated counterclockwise in the drawing by the spring 410 to return to the home position, and the panic lever 400 and the dead bolt pulling lever 210 are separated from each other, and thus the dead bolt pulling lever 210 can be rotated to be in a state in which the dead bolt 200 can be drawn out by the driving of the 1 st motor 221, and as the panic lever 400 and the lower end stopping protrusion 710 of the latch lever 700 are separated from each other, the latch lever 700 can be rotated clockwise in the drawing by the elastic force of the spring 740 formed at the pressing part 730 of the latch lever 700, and thus the rotation restricting part 720 of the latch lever 700 is drawn in through the lateral groove 151 of the frame 150 to press the protrusion 120 of the latch bolt 100 to restrict the rotation of the latch bolt 100.

On the other hand, when the user inserts the key outdoors and rotates the key, the 1 st handle block 910 and the 3 rd handle block 930 are fixed, and only the 2 nd handle block 205 rotates together with the key.

With such a configuration, when a user inserts a key outdoors and rotates, the 1 st handle block 910 and the 3 rd handle block 930 are in a fixed state, only the 2 nd handle block 920 rotates clockwise or counterclockwise in the drawing to rotate the emergency lever 400 in contact therewith, and the emergency lever 400 rotated by the 2 nd handle block 920 contacts the dead bolt pulling rod 210, thereby rotating the dead bolt pulling rod 210 counterclockwise in the drawing.

Accordingly, the dead bolt pulling rod 210 rotates to slide along the slider groove 204 of the slider 201 and abuts against the right inner wall of the slider groove 204, thereby drawing the dead bolt 200 into the body front portion 20, and then the panic lever 400 further rotates clockwise in the drawing and abuts against the lower end stopper projection 710 of the latch lever 700, thereby rotating the latch lever 700 centering on the rotation shaft 701 to disengage the rotation restricting portion 720 from the protrusion 120 of the latch bolt 100, thereby allowing the rotation of the latch bolt 100.

Thereafter, when the user rotates the key to the home position again, the 2 nd handle block 920 is also simultaneously rotated to return to the home position and separated from the panic lever 400, whereby the panic lever 400 is also rotated again in the counterclockwise direction on the drawing to return to the home position by the elastic force of the spring 410.

Further, as the panic lever 400 is rotated in the counterclockwise direction on the drawing by the spring 410 to return to the home position, the panic lever 400 and the dead bolt pulling lever 210 are separated from each other, whereby the dead bolt pulling lever 210 can be rotated to be in a state in which the dead bolt 200 can be drawn out by the driving of the 1 st motor 221, and as the panic lever 400 and the lower end stopping protrusion 710 of the latch lever 700 are separated from each other, the latch lever 700 can be rotated, whereby the latch lever 700 is rotated in the clockwise direction on the drawing by the elastic force of the spring 740 formed at the pressing part 730 of the latch lever 700, whereby the rotation restricting part 720 of the latch lever 700 is drawn in through the lateral groove 151 of the frame 150, whereby the protruding part 120 of the latch bolt 100 is pressed, thereby restricting the rotation of the latch bolt 100.

On the other hand, in the door lock insert according to another embodiment of the present invention, an auxiliary fixing bolt 500 is additionally formed to allow a user to operate only indoors, and when the user rotates the locking device indoors in a clockwise or counterclockwise direction, the rotation block 520 rotates in a clockwise or counterclockwise direction, and thus the advance/retreat block 510 moves backward or forward to be drawn in or out from the body front 20. At this time, the torsion spring 530 is coupled to one side of the rotation block 520, and the torsion spring 530 exerts an elastic force when compressed as a normal spring, and thus the torsion spring 530 is compressed and rotated in a direction opposite to a direction in which the elastic force of the torsion spring 530 acts at an initial stage of rotation of the rotation block 520, and therefore the rotation block 520 is rotated slowly by the elastic force, and thus when the rotation block 520 is rotated by a certain angle in the middle of the slow introduction of the auxiliary fixing bolt 500, the rotation block 520 is rotated in a direction in which the elastic force of the torsion spring 530 acts, that is, in an extending direction of the torsion spring 530, and thus the torsion spring 530 is immediately extended, and the rotation block 520 is also rapidly rotated correspondingly and the auxiliary fixing bolt 500 is immediately introduced.

As described above in detail, in the door lock insert according to the present invention, when a user operates the push-pull handle internally or inserts a key externally and rotates, the 3 rd and 2 nd handle blocks rotate the panic lever, and the panic lever rotates to rotate the 1 st and 2 nd deadbolt draw bars and the latch lever to unlock the deadbolt and the latch bolt, so that the user can directly unlock the deadbolt and the latch bolt by the handle or the key, thereby rapidly opening the door.

Further, the latch bolt is automatically unlocked by the motor, so that the door can be easily opened by automatically unlocking the dead bolt and the latch bolt by the motor even if the user does not operate the handle.

The preferred embodiments of the present invention described above are disclosed for illustrative purposes, and those skilled in the art will be able to make various modifications, alterations, and additions within the spirit and scope of the invention, which fall within the scope of the appended claims.

Claims

1. An automatic unlocking type door lock insert of a latch bolt is characterized in that the latch bolt is provided with:

a latch bolt which is drawn out or introduced from the front of the main body to prevent the door from being opened by itself and maintains a closed state, and is formed with a protrusion;

a latch lever having a rotation restricting portion that restricts or allows rotation of the latch bolt by pressing or releasing the protrusion of the latch bolt, and a pressing portion that rotates the rotation restricting portion by moving forward and backward by an external force;

a driven gear integrally formed with a pressing protrusion for moving the pressing portion of the latch lever forward and backward;

a 2 nd gear box formed with a 2 nd motor and a 2 nd drive gear for transmitting a rotational force of the 2 nd motor to the driven gear; and

a sub-lock which is introduced and drawn from the front of the main body to detect the closed and opened states of the door,

the 2 nd driving gear and the driven gear rotate by the driving of the 2 nd motor to move the pressing protrusion, the latch lever, and the pressing portion forward, so that the rotation restricting portion of the latch lever is disengaged from the protrusion of the latch bolt to allow the rotation of the latch bolt,

the sub-lock is drawn out from the front portion of the main body, so that the detecting portion of the sub-lock abuts against a sub-lock detecting sensor, and when the sub-lock detecting sensor detects that the door is opened, the 2 nd motor rotates in reverse to rotate the 2 nd driving gear and the driven gear in reverse, the pressurizing protrusion returns to a home position, so that the pressurizing portion of the latch lever moves in the backward direction, and the rotation restricting portion pressurizes the protrusion of the latch bolt to restrict the rotation of the latch bolt.

2. The latch bolt auto-unlock type door lock insert according to claim 1,

a spring is formed on the pressurizing part,

when the 2 nd motor rotates reversely and the pressing protrusion of the driven gear is separated from the pressing portion of the latch lever, the pressing portion moves backward by the elastic force of the spring, and the rotation restricting portion of the latch lever presses the protrusion of the latch bolt to restrict the rotation of the latch bolt.

3. The latch bolt auto-unlock type door lock insert according to claim 2,

a cam is integrally formed on one side of the driven gear,

the cam has limiting parts formed in its two ends to limit the rotation radius of the cam.

4. An automatic unlocking type door lock insertion core of a latch bolt is characterized by comprising:

a latch bolt drawn out or introduced from the front of the main body to prevent the door from being opened by itself to maintain a closed state;

a dead bolt which is drawn out and drawn in from the front of the body to lock and unlock the door and is integrally formed with a slider linearly moving forward and backward by the rotation of a 1 st dead bolt draw bar and a 2 nd dead bolt draw bar;

a 1 st handle block and a 3 rd handle block integrally formed to be simultaneously rotated by a certain angle by the action of the push-pull handle;

a latch lever which restricts or allows the rotation of the latch bolt;

an emergency lever which is abutted against the 3 rd handle block and rotates, thereby rotating the 1 st and 2 nd dead bolt draw bars and the latch lever; and

a draw bar which makes the protrusion and the stopping protrusion formed on the left and right with the hinge axis formed at the center as the center move up and down oppositely,

when the push-pull handle is operated, the 3 rd handle block is rotated to rotate the panic lever, the panic lever rotates the 1 st and 2 nd dead bolt draw bars to draw the dead bolt into the front portion of the body, and then rotates the latch lever to allow the rotation of the latch bolt.

5. The latch bolt auto-unlock type door lock insert according to claim 4,

a locking unit is integrally formed at one side of the above-mentioned 3 rd handle block,

the locking unit is stopped by the stopping protrusion of the draw bar, thereby limiting the rotation of the emergency lever and maintaining the rotation permission state of the latch bolt.

6. The latch bolt auto-unlock type door lock insert according to claim 5,

above-mentioned lock pin still includes:

and a 2 nd handle block which rotates the panic lever in a clockwise direction or a counterclockwise direction by rotation of the key.

7. The latch bolt auto-unlock type door lock insert according to claim 6,

the door lock core also includes a sub lock, which is drawn in and out from the front part of the main body to detect the closing and opening state of the door, and is formed with a pressing protrusion for pushing the protrusion of the draw bar to push it to descend in the horizontal direction,

the pressing protrusion lowers the protrusion of the traction rod to raise the stopper protrusion of the traction rod, thereby releasing the stopper protrusion and the stopper of the locking unit.

8. An automatic unlocking type door lock insertion core of a latch bolt is characterized by comprising:

a latch lever that rotates about a rotation shaft to press the protrusion of the latch bolt or to be separated from the protrusion of the latch bolt, thereby restricting or allowing the rotation of the latch bolt;

an emergency lever for rotating the 1 st and 2 nd deadbolt draw rods and the latch lever;

a 1 st handle block, a 2 nd handle block and a 3 rd handle block which rotate the emergency lever;

the 2 nd handle block or the 3 rd handle block is rotated to rotate the panic lever, the panic lever rotates the 1 st dead bolt draw bar and the 2 nd dead bolt draw bar to draw the dead bolt into the front portion of the body, and then rotates the latch lever to allow the rotation of the latch bolt.

9. The latch bolt auto-unlock type door lock insert according to claim 8,

the latch lever is formed with:

a rotation restricting portion that restricts or allows rotation of the latch bolt by pressing the protruding portion of the latch bolt or by being disengaged from the protruding portion of the latch bolt; and

and a pressing part which moves forward and backward by an external force to separate the rotation restricting part from the protruding part of the latch bolt or to press the protruding part of the latch bolt.