KR20060127496A - Locking apparatus for windows - Google Patents

Abstract

A window locking apparatus is provided to lock up a window automatically and to open a window simply using a one-touch button, to improve user convenience by using for a large-sized window, and to prevent accidents and to improve in appearance by keeping unexposed. A window locking apparatus contains: a housing(101) made of metal or resins and provided with bosses(102,103) to fix a printed circuit board and a cover, openings(105,106) to project latch bolts(152,153) and a latch unit outward, coupling pieces(109) to couple with coupling pieces(189) of a bracket, a supporting piece(107) to support an end of a spring coupled to a latch bolt unit, an opening(112) to house a battery pack, and guide blocks(110,111) to support a latch bolt unit and a latch unit to slide equipped with an open call button, an operating knob(115), and an indicator to display the operating state; a printed circuit board(120) provided with screw holes(123) formed correspondingly to the bosses of the housing, a connector(121) coupled with a plug of a rotary motor to supply power sources, photo couplers(124,125), and an open call button exposed to the surface of the housing through a through-hole of the housing; a rotary motor(130) placed in the housing; an off-lever unit(140) composed of a body(141) coupled with a rotary shaft(131) of the rotary motor by gears(134,135), a hanging piece(143) and an open lever(142) projected from the body, and a stopper(144) contacted with a wing piece(154) of a latch bolt unit to restrain the movement of a latch bolt unit; a latch bolt unit(150) composed of a body(159) having a housing groove(155), a slide bar(156) and a guide projection(157); a latch unit(160) provided with a slide projection(162) and a guide projection(164), support projections(161,161') and a spring(163); a cover(170) provided with screw holes(173,172), guide slits(171,174) and a through-hole and supporting the rotary motor and the off-lever unit and the slide of the latch bolt unit and the latch unit; a bracket(180) fixed to a window using a screw and provided with a coupling piece(189) to couple with the housing to a window; and a battery housing pack(190) housing a battery for power supply.

Description

Locking apparatus for windows

1 is an explanatory diagram showing a state in which the window lock device of the present invention is applied.

Figure 2 is an exploded perspective view showing a window locking device according to an embodiment of the present invention.

3 is a block diagram illustrating a functional configuration of a microcontroller mounted on the printed circuit board of FIG. 2.

4 is an operation diagram showing a state in which the window lock is locked.

5 is an operation diagram showing a state in which the window lock is open.

6 is an operation diagram for generating an alarm by the window lock is forced open.

7 is an operation of generating an alarm because the window lock is less locked.

8 is an operation diagram showing a state immediately before the window locking device is automatically locked.

Figure 9 is an exploded perspective view showing a wireless opening request assembly to be installed remotely of the present invention.

The present invention relates to a window locking device, and more particularly to a window locking device that can open a window with an automatic locking function and a simple button operation.

Furthermore, the present invention relates to a window locking device that can open a window conveniently in the case of a large window by allowing a window to be opened using a wireless opening request assembly installed at a remote location.

In addition, the present invention relates to a window locking device that may alert the user by forcing an alarm when the window is forcibly opened or the window is locked less.

In general, in the case of sliding windows, a conventional window locking device locks a locking piece and a stop at each window at the boundary between the first window and the second window, and locks the locking piece by locking the locking piece by engaging the locking piece. .

However, in this way, various problems arise.

First, when a foreign material is inserted into the rotating portion of the clamp, it is difficult to operate the child because the rotation is not smooth and a lot of force.

In addition, the catch is usually formed long handle to facilitate gripping, if the catch does not rotate completely, it may protrude from the surface of the window to hit or damage the clothes.

In addition, in the case of large-sized apartments, the windows applied to the living room or balcony are becoming larger in size, which requires a large force to move the windows, and therefore a handle is necessary, and the distance between the handle and the locking device. Is moving away. Therefore, when the window is locked, if you want to open the window by holding the handle, there is a hassle to go to the position of the locking device to release the lock and then come back to the position of the handle to open the door.

Accordingly, the present invention is proposed to solve such a conventional problem, and an object of the present invention is to provide a window locking device having a simple opening and closing operation.

In addition, another object of the present invention is to provide a window locking device that is applied to a large window to improve the user convenience.

Furthermore, another object of the present invention is to provide a window locking device with improved safety.

Other objects, features, and advantages of the present invention will be more clearly understood from the embodiments described below.

According to a first aspect of the present invention, a window locking device installed on a first window to be engaged or released with a locking member installed on a second window,

A housing having a storage space;

A latch bolt unit installed in the accommodation space and coupled to or released from the locking member;

A latch unit installed in the accommodation space to check whether the latch bolt and the locking member are coupled;

An open lever unit driven to control the movement of the latch bolt unit in response to the engagement and release of the latch bolt unit and the engaging member;

An opening request detection unit detecting an opening request signal by a user operation; And

When it is checked that the latch bolt unit and the latching member are coupled by the latch unit, the open lever unit is controlled to prevent the latch bolt unit from moving, and when the open request signal is transmitted from the open request detection unit, the open lever unit is opened. A window lock comprising a control unit for controlling a lever unit to move the latch bolt unit is disclosed.

According to a second aspect of the present invention, there is provided a window locking device which is installed on a first window to be engaged or released with a locking member installed on a second window.

A housing having a storage space formed therein and having an opening request button installed on a surface thereof;

A printed circuit board installed in the storage space and mounted with a microcontroller and first and second sensing members;

A rotating motor installed in the storage space;

An open lever unit coupled to be rotated by the rotary motor and installed in association with the first sensing member;

A latch bolt unit having one end elastically entering and exiting the housing from the side of the housing, and the access being controlled by the open rep unit; And

Disclosed is a window locking device including a latch unit having one end elastically entering and exiting the housing at a side of the housing and the other end being installed in association with the second sensing member.

Preferably, the open lever unit includes a body gear-coupled with the rotary shaft of the rotary motor at one end, a stopper and an open lever protruding from the body, and the stopper is in contact with or released from the latch bolt unit.

Preferably, the first sensing member is a photo coupler in which the receiver and the transmitter face each other at a predetermined gap, and the open lever can be inserted into or drawn out from the gap.

The latch bolt unit may include a body in which a wing piece contacting or releasing contact with the open lever unit protrudes from a side surface thereof; And a pair of latch bolts rotatably coupled to the support protrusions protruding from both sides of one end of the body.

Preferably, the printed circuit board may further include a third sensing member which is a photo coupler in which the receiving unit and the transmitting unit face each other at a predetermined gap, and a slide bar is formed at the other end of the body to be inserted into or drawn out from the gap.

The second sensing member may be a photo coupler in which the receiver and the transmitter face each other at a predetermined gap, and the other end of the latch unit may be inserted into or drawn out from the gap.

Preferably, it may further include an opening and closing knob which is installed on the surface of the housing, coupled to the open lever unit.

Preferably, the microcontroller

An opening request detector for detecting an opening request signal generated by a user pressing the opening request button;

A locking detecting unit for checking whether the rotary motor is in the locked position or the open position by a signal generated by the first sensing member by the open lever unit rotated by the driving of the rotary motor;

A closing detecting unit configured to generate a closing signal or an opening signal by determining a closing or opening from a signal generated by the second sensing member corresponding to the position of the latch unit; And

When the latch unit is sensed by the second sensing member, the closing signal is received from the closing sensing unit to drive the rotary motor to allow the latch bolt unit to enter and exit, and by the second sensing member And a control unit configured to drive the rotary motor according to an opening request signal from the opening request detection unit to render the latch bolt unit in an inaccessible state when the opening request is requested by the opening request button in a state where the latch unit is detected. do.

Preferably, a third sensing member is further installed on the printed circuit board in association with the latch bolt unit, and the microcontroller checks whether the latch bolt unit is locked to generate a lock signal and an alarm. The control unit may further include an alarm generating unit configured to generate an alarm when the latch detecting unit does not generate a lock signal in a state where the latch bolt unit is inaccessible.

Preferably, the printed circuit board may be further mounted with a wireless opening request receiving module for receiving a wireless opening request signal transmitted from the outside wirelessly.

According to a third aspect of the present invention, there is provided a locking device installed on a first window, a keeper installed on a second window at a position coupled with the locking device, and a wireless opening request assembly spaced apart from the locking device. ,

The locking device

A housing having a storage space formed therein and having an opening request button installed on a surface thereof;

A printed circuit board installed in the storage space and mounted with a microcontroller and first and second sensing members;

A rotating motor installed in the storage space;

An open lever unit coupled to be rotated by the rotary motor and installed in association with the first sensing member;

A latch bolt unit having one end elastically entering and exiting the housing from the side of the housing, and the access being controlled by the open rep unit; And

A latch unit having one end elastically entering and exiting the housing from the side of the housing, and the other end being installed in association with the second sensing member,

The wireless opening request assembly

A handle cover for accommodating a printed circuit board and a battery mounted therein with a wireless transmission module therein, and a wireless open request button detachably coupled to the handle cover and electrically connected to the printed circuit board on a surface thereof are installed. A window locking system is provided that includes a handle that is secured to the window.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention.

1 is an explanatory diagram showing a state in which the window lock device of the present invention is applied.

As shown, the windows 10 and 12 are installed in the same window frame and joined at their boundaries.

The window locking device 100 of the present invention is installed at the boundary position of the window 10, and the keeper 14 is installed at the corresponding window 12.

The outside of the window locking device 100 of the present invention is made of a metal or resin housing 101, the opening request button 129 is provided on the surface of the housing 101. Optionally, a display unit 128 such as an opening / closing knob 115 and an LED indicating an operation state may be installed on the surface of the housing 101.

In addition, a pair of latch bolts 152 and 153 elastically protrude from the side facing the keeper 14 of the housing 101 to be inserted into or withdrawn from the catch 16 formed in the keeper 14. The latch unit 160 is elastically protruded.

At the other end of the window 10, a wireless open request assembly 200 is installed.

The outside of the wireless opening request assembly 200 is made of a frame cover 220 and the handle 210 coupled to the frame cover 220, the wireless opening request button 212 is installed on the surface of the handle 210.

The operation of the window locking device 100 of the present invention will be described schematically, and the specific operation will be described later.

When the user grasps the handle 210 of the wireless opening request assembly 200 and moves the window 10, the latch unit 160 and the latch bolts 152 and 153 come into contact with the keeper 14 and at the same time the housing ( 101) pushed into the inside, and then the latch bolts (152, 153) is projected elastically again to face the catch 16.

At this time, the built-in microcontroller according to the operation of the latch unit 160 rotates the rotary motor in one direction so that the latch bolts 152 and 153 cannot be pushed into the housing 101 to function as a dead bolt. To keep it locked.

On the other hand, if the user wants to open the window 10, the user grabs the handle 210 of the wireless opening request assembly 200 and presses the wireless opening request button 212, the RF signal is transmitted to the window lock device 100 The microcontroller receives the RF signal and rotates the rotary motor in the opposite direction. Accordingly, the latch bolts 152 and 153 are pushed into the housing 101 so that the user applies a force to the window 10. When moved, the latch bolts 152 and 153 are separated from the catch 16.

Of course, if the window 10 is not moved within a predetermined time after the wireless opening request button 212 is pressed, the microcontroller rotates the rotating motor back to its original position so that the latch bolts 152 and 153 are moved into the housing 101. Maintain a lock that cannot be pushed in.

Although the outline of the operation of the present invention has been described above, a description regarding the specific structure will be made below.

Figure 2 is an exploded perspective view showing a window locking device according to an embodiment of the present invention.

In general, the housing 101, the printed circuit board 120, the rotary motor 130, the off-prever unit 140, the latch bolt unit 150 and the latch unit 160.

In addition, the cover 170 and the housing 101 supporting the rotating motor 130 and the off lever unit 140 and supporting the slide of the latch bolt unit 150 and the latch unit 160 are attached to the window. The battery pack pack 190 further includes a bracket 180 and a battery for supplying power.

The housing 101 may have a storage space formed therein, and a rear side thereof may be opened, and a portion 119 of the housing 101 may be detachable for decoration and installation convenience.

On one side of the housing 101, openings 105 and 106 through which the latch bolts 152 and 153 and the latch unit 160 protrude to the outside are formed, respectively, and the coupling pieces 189 of the bracket 180 on the other side. Coupling piece 109 coupled to the integrally formed, the support piece 107 for supporting one end of the spring 163 is coupled to the latch bolt unit 150 is formed. In addition, an opening 112 for receiving the batter pack 190 is formed at another side of the housing 101, and the opening 112 may be covered with a cover (not shown).

The lower surface of the housing 101 is integrally formed with bosses 102 having a screw hole formed in a proper position to fix the printed circuit board 120, and for coupling the cover 170 to the vicinity of the opening of the rear surface. The bosses 103 are integrally installed in appropriate positions.

In addition, guide blocks 110 and 111 for supporting the latch bolt unit 150 and the latch unit 160 to slide so as to be integrally formed on the bottom of the housing 101 corresponding to the openings 105 and 106, respectively. The guide block 110 is formed with a guide protrusion 110a inserted into the body 159 of the latch bolt unit 150 and a guide groove 110b into which the guide piece 156 of the latch bolt unit 150 is inserted. do. Similarly, the guide block 111 has a pair of locking projections (not shown) for supporting one end of the guide groove 111a for guiding the latch unit and the one end of the spring 163 fitted to the latch unit 160 when the latch unit 160 is moved. 111b) is formed.

In addition, a through hole 126 is formed at the bottom of the housing 101 to expose the opening request button 129 installed on the printed circuit board 120 to the surface of the housing 101. An annular locking jaw 114 formed with a cutting portion defining a rotation angle protrudes from the bottom surface, and a through hole 113 for coupling the open / close knob 115 and the open lever unit 140 to the center of the locking jaw 114. ) Is formed.

On the other hand, the selectively opened and closed knob 115 is coupled to the open lever unit 140 via the shaft 116, for example, the open lever unit 140 manually when all of the battery is exhausted and does not operate. The latch bolts 152 and 153 may be separated from the locking holes 16 of the keeper 14 by turning.

On the printed circuit board 120, threaded holes 123 are formed corresponding to the bosses 102 of the housing 101, various electronic components including a microcontroller are mounted, and the plug 133 of the rotary motor 130 is mounted. ) Is coupled to the connector 121 for applying power.

In addition, the sensing member 124 is installed within the rotation range of the open lever 142 of the open lever unit 140 on the printed circuit board 120, and corresponds to the latch bolt unit 150 and the latch unit 160. The sensing member 125 and the sensing member 126 are respectively installed in the.

Preferably, the sensing members 124, 125, and 126 may be formed of photo couplers. As is well known, the photo coupler has a certain gap between the receiver and the transmitter facing each other.

The open lever unit 140 has a body 141 which is gear-coupled via the rotary shaft 131 of the rotary motor 130 and the gears 134 and 135 at one end thereof, and a locking piece 143 protruding from the body 141. And a stopper 144 that contacts the open lever 142 and the wing piece 154 of the latch bolt unit 150 to suppress movement.

The locking piece 143 is fitted to the cut portion of the annular locking jaw 114 formed on the bottom of the housing to contact the locking jaw 114 to limit the rotation angle of the body 141. In addition, the open lever 142 is inserted into the gap between the photo coupler 124.

In addition, the latch bolt unit 150 is composed of a body 159 having a receiving groove 155 therein, the rear end and the front surface of the rear end of the body 159 is a slide bar 156 and the guide protrusion 157, respectively Protrudingly formed, support protrusions 151 protrude from both front ends of the body 159, and a pair of latch bolts 152 and 153 are rotatably coupled to the support protrusion 151.

In addition, the wing piece 154 is formed on the side surface of the body 159, as described above, the contact with the stopper 144 of the open lever unit 140 to suppress the movement of the latch bolt unit 150.

As described above, the slide bar 156 is inserted into the guide groove 110b of the guide block 110 and is inserted into or withdrawn from the gap between the photo couplers 125.

One end of the spring 158 is inserted into the receiving groove 155, and the other end of the spring 158 is fixed to the support piece 107 of the housing.

Naturally, the structure in which the body 159 of the latch bolt unit 150 is slidably coupled to the guide block 110 may be configured differently from the above example.

The latch unit 160 has a plate-like slide protrusion 162 and guide protrusions 164 formed at both front and rear ends thereof. In particular, the slide protrusion 162 is inserted into or drawn out from the gap between the photo couplers 126. .

An opening is formed in the center of the latch unit 160 so that the support protrusions 161 and 161 'are formed opposite to the openings, and the spring 163 is fitted so that both ends are supported by the support protrusions 161 and 161'. .

As the latch unit 160 moves, an end portion of the spring 163 inserted into the support protrusion 161 ′ is caught and supported by the locking protrusion 111b of the guide block 111.

In addition, the cover 170 is in the form of a plate, a screw hole 173 is formed at a position corresponding to the bosses 103 of the housing 101, and at a position corresponding to the coupling hole 132 of the motor 130. The screw hole 172 is formed. In addition, the guide protrusions 157 of the latch bolt unit 150 and the guide protrusions 164 of the latch unit 160 are inserted to guide the guide slits 171 and 174, respectively, and are formed in the center of the open lever unit 140. The through hole 174 to which one end of the body 141 is inserted is formed.

The bracket 180 is fixed to the window using a screw or the like, and as described above, the coupling piece 189 for coupling with the housing 101 protrudes.

3 is a block diagram illustrating a functional configuration of a microcontroller mounted on the printed circuit board of FIG. 2.

The opening request detector 320 detects an opening request signal generated by a user pressing the opening request button 129 of the housing 101 or the wireless opening request button 212 of the wireless opening request assembly 200. Notify).

The locking detecting unit 330 checks whether the rotating motor 130 is in the locked position or the open position by driving the rotating motor 130. To this end, for example, when the open lever 142 is located in the gap of the photo coupler 124 by the rotation of the open lever unit 140 coupled with the rotary motor 130, the open lever 142 in the locked position. ) May not be located in the gap of the photo coupler 124 as an open position.

That is, in the locked position, the open lever 142 is located in the gap of the photo coupler 124, and the stopper 144 is in contact with the wing piece 154 of the latch bolt unit 150, the latch bolt unit 150 By suppressing movement, for example, the latch bolts 152 and 153 cannot be opened when the keeper 14 is engaged with the keeper 14.

The lock detecting unit 340 checks whether the latch bolts 152 and 153 are locked to the keeper 14 and transmits a lock signal to the control unit 310.

That is, when the latch bolts 152 and 153 are locked to the keeper 14, the latch bolts 152 and 153 protrude out of the housing 101, and thus the slide bars 156 of the latch bolt unit 150. ) Is drawn out from the gap between the photo coupler 125, the lock detection unit 340 determines that the latch bolts (152, 153) are locked in the keeper 14.

The closing detection unit 350 determines the closing or opening from the signal generated by the photo coupler 126 in response to the position of the latch unit 160 and transmits the closing signal or the opening signal to the controller 310.

The wireless receiver 370 receives an RF signal transmitted from the wireless open request assembly 200 and transmits the RF signal to the controller 310.

The alarm generator 380 outputs an alarm sound or flashes a lamp through the speaker under the control of the controller 310.

The motor driving unit 360 rotates the rotating motor 130 by the indicated angle in the direction indicated under the control of the controller 310.

In the above, the configuration of the window locking device according to an embodiment of the present invention has been described.

Next, the operation of the window locking device according to an embodiment of the present invention.

4 is an operation diagram showing a state in which the window lock is locked, FIG. 5 is an operation diagram showing the state in which the window lock is opened, and FIG. 6 is an operation diagram for generating an alarm by forcibly opening the window lock. 7 is an operation diagram for generating an alarm because the window lock is less locked, Figure 8 is an operation diagram showing a state immediately before the window lock is automatically locked.

Referring to FIG. 4, the latch bolt 152 of the window locking device 100 is fitted into the catch 16 of the keeper 14.

Accordingly, the latch unit 160 contacts the keeper 14 and is pushed into the housing 101 so that the slide protrusion 162 is inserted between the gaps of the photo coupler 126. In addition, the open lever unit 140 rotates so that the open lever 142 is inserted into the gap of the photo coupler 124, and the stopper 144 suppresses the movement of the latch bolt 152 so that the latch bolt 152 is dead. It will function as a bolt.

On the other hand, by applying a force from the outside in this state, as shown in Figure 6, if the force of the latch bolt 152 to be separated from the catch 16 of the keeper 14, the photo coupler 126 detects this The detection signal is generated and the closing detection unit 350 transmits the opening signal to the controller 310 based on the detection signal. The controller 310 determines to be forced open and controls the alarm generator 380 to output an alarm sound.

In addition, when the user locks the window, the latch bolt 152 is not completely engaged with the catch 16 in the state shown in FIG. 1, so that the latch bolt 152 is positioned in the gap of the photo coupler 125 as shown in FIG. 7. Accordingly, the lock locking unit 340 transmits a detection signal to the control unit 310, and the control unit 310 determines the state to be a less locked state to control the alarm generating unit 380 to generate an alarm.

In the state of FIG. 4, when the user presses the open request button 129 or the wireless open request button 212 to open the window, the open request detection unit 320 of the microcontroller detects this and controls the open request signal 310. To pass).

As shown in FIG. 5, the controller 310 controls the motor driving unit 360 to rotate the rotary motor 130 so that the stopper 144 of the open lever unit 140 contacts the latch bolt unit 150. Release the state. At this time, the open lever 142 is drawn out from the gap of the photo coupler 124.

Therefore, since the latch bolts 152 and 153 can move freely into the housing 101, when the user applies a force to open the window, the latch bolt is separated from the catch 16. In addition, the latch unit 160 protrudes to the outside by the restoring force of the spring 163, and thus the slide protrusion 162 is drawn out from the gap of the photo coupler 126.

Meanwhile, as shown in FIG. 8, a predetermined time elapses in a state in which the stopper 144 of the open lever unit 140 releases the contact with the latch bolt unit 150 by rotating the rotary motor 130. When the latch unit 160 is not drawn out from the gap of the photo coupler 126, the photo coupler 126 generates a detection signal corresponding thereto, and the closing detection unit 350 transmits the closing signal to the controller 310. do.

The controller 310 maintains the locked state by rotating the rotary motor 130 as shown in FIG. 1 so that the stopper 144 of the open lever unit 140 suppresses the latch bolt unit 150.

9 is an exploded perspective view showing a wireless opening request assembly 200 installed remotely of the present invention.

The handle cover 215 is separated from the handle 210, and the wireless transmission module PCB 230 and the battery 290 are accommodated inside the cover 215, and the wireless open request button 212 is provided on the cover 215 surface. Electrically connected to the PCB 230 and protrudes.

In addition, the handle 210 is coupled via the mounting block 222 and the frame cover 220 which is fixed to the window.

Accordingly, when the user presses the wireless open button 212, an RF signal is transmitted from the wireless module PCB 230, and the lock device 100 receives the RF signal and operates in response thereto.

In this embodiment, a window opened and closed in a sliding manner has been described as an example, but the same may be applied to a sliding window.

Although the above has been described with reference to one embodiment of the present invention, various changes can be made at the level of those skilled in the art.

For example, when there is no need to detect a less locked state, there is no need to install the sensing member 125, and there is no need to configure the locking detecting unit 340 in the microcontroller, and thus the slide bar of the latch bolt unit. (156) is also unnecessary.

In addition, the coupling structure of the rotary motor 130 and the open lever unit 140 may be applied in different ways depending on the position of the rotary motor.

Therefore, it should be understood that the scope of the present invention should not be limited to the above-described embodiments and should be determined from the claims described below.

According to the present invention, it is possible to automatically lock the window and the window, there is an advantage that the window can be opened by a button operation by the user's one-touch.

In addition, there is an advantage in that the opening request can be made wirelessly for a large window, thereby improving user convenience.

In addition, the locking device does not protrude from the surface of the window can prevent a safety accident, there is an advantage that the appearance is beautiful.

Claims (12)

A window locking device installed on the first window to engage or release the locking member installed on the second window. A housing having a storage space; A latch bolt unit installed in the accommodation space and coupled to or released from the locking member; A latch unit installed in the accommodation space to check whether the latch bolt and the locking member are coupled; An open lever unit driven to control the movement of the latch bolt unit in response to the engagement and release of the latch bolt unit and the engaging member; An opening request detection unit detecting an opening request signal by a user operation; And When it is checked that the latch bolt unit and the latching member are coupled by the latch unit, the open lever unit is controlled to prevent the latch bolt unit from moving, and when the open request signal is transmitted from the open request detection unit, the open lever unit is opened. And a control unit for controlling a lever unit to move the latch bolt unit. A window locking device installed on the first window to engage or release the locking member installed on the second window. A housing having a storage space formed therein and having an opening request button installed on a surface thereof; A printed circuit board installed in the storage space and mounted with a microcontroller and first and second sensing members; A rotating motor installed in the storage space; An open lever unit coupled to be rotated by the rotary motor and installed in association with the first sensing member; A latch bolt unit having one end elastically entering and exiting the housing from the side of the housing, and the access being controlled by the open rep unit; And And a latch unit having one end elastically entering and exiting the housing from the side of the housing and the other end being installed in association with the second sensing member. The method according to claim 2, The open lever unit includes a body gear-coupled with the rotary shaft of the rotary motor at one end, a stopper and an open lever protruding from the body, and the stopper is in contact with or released from the latch bolt unit. lock. The method according to claim 3, The first sensing member is a photo coupler in which the receiver and the transmitter face each other at a predetermined gap, The open lever is a window locking device, characterized in that inserted into or withdrawn from the gap. The method according to claim 2, The latch bolt unit A body having a wing piece protruding from or in contact with the open lever unit; And And a pair of latch bolts rotatably coupled to support protrusions protruding from both sides of one end of the body. The method according to claim 5, The printed circuit board is further provided with a third sensing member which is a photo coupler facing the receiver and the transmitter in a predetermined gap, A slide bar is formed at the other end of the body and is inserted into or withdrawn from the gap. The method according to claim 2, The second sensing member is a photo coupler in which the receiver and the transmitter face each other at a predetermined gap, The other end of the latch unit is inserted into or withdrawn from the gap window lock device. The method according to claim 2, It is installed on the surface of the housing, the window locking device further comprises an opening and closing knob coupled to the open lever unit. The method according to claim 2, The microcontroller An opening request detector for detecting an opening request signal generated by a user pressing the opening request button; A locking detecting unit for checking whether the rotary motor is in the locked position or the open position by a signal generated by the first sensing member by the open lever unit rotated by the driving of the rotary motor; A closing detecting unit configured to generate a closing signal or an opening signal by determining a closing or opening from a signal generated by the second sensing member corresponding to the position of the latch unit; And When the latch unit is sensed by the second sensing member, the closing signal is received from the closing sensing unit to drive the rotary motor to allow the latch bolt unit to enter and exit, and by the second sensing member When the opening request is requested by the opening request button in the state that the latch unit is detected, the control unit for driving the rotary motor in response to the opening request signal from the opening request detection unit to make the latch bolt unit in an inaccessible state Window lock device comprising a. The method according to claim 9, A third sensing member is further installed on the printed circuit board in association with the latch bolt unit. The microcontroller further includes a lock detecting unit generating a lock signal by checking whether the latch bolt unit is locked, and an alarm generating unit generating an alarm. And when the locking detecting unit does not generate a locking signal when the latch bolt unit is in an inaccessible state, the control unit causes the alarm generating unit to generate an alarm. The method according to claim 2, And a wireless opening request receiving module mounted on the printed circuit board to receive a wireless opening request signal transmitted wirelessly from the outside. A lock device installed on the first window, a keeper installed on the second window at a position coupled with the lock device, and a wireless opening request assembly spaced apart from the lock device, The locking device A housing having a storage space formed therein and having an opening request button installed on a surface thereof; A printed circuit board installed in the storage space and mounted with a microcontroller and first and second sensing members; A rotating motor installed in the storage space; An open lever unit coupled to be rotated by the rotary motor and installed in association with the first sensing member; A latch bolt unit having one end elastically entering and exiting the housing from the side of the housing, and the access being controlled by the open rep unit; And A latch unit having one end elastically entering and exiting the housing from the side of the housing, and the other end being installed in association with the second sensing member, The wireless opening request assembly A handle cover for accommodating a printed circuit board and a battery mounted therein with a wireless transmission module therein, and a wireless open request button detachably coupled to the handle cover and electrically connected to the printed circuit board on a surface thereof are installed. A window locking system comprising a handle fixed to a window.

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