KR100378314B1 - door lock apparatus - Google Patents

Abstract

The locking device of the door according to the present invention, the door is locked / unlocked by the moving body moving by the rotating actuator, the locking body coupled to the inside of the door and the inner handle for manually operating the actuator, and In the door having a delivery injector coupled to the inlet through which milk or newspapers, etc., the locking means 56 is coupled to the inside of the lock body 38 to restrain the operation of the actuator 54, On the outer surface of the locking body 38 is installed a human body sensor 44 for detecting the proximity or contact of the occupants in the room, usually driving the restraining means 56 to restrain the actuator 54 On the other hand, when the occupant is detected by the human body sensor 44, the control means for releasing the restraint of the actuator 54 by driving the restraining means 56, so in the door having a delivery injector It is possible to prevent theft by preventing the inner handle from being rotated fundamentally through a delivery slot for a person to invade a room.

Description

Door lock apparatus

The present invention relates to a locking device for a door, and more particularly, to a locking device for a door in which a delivery slot is coupled to the door.

The doors of ordinary homes are combined with a locking device to prevent outsiders from entering the house and to prevent theft. And, the door is provided with a delivery injector coupled to the inlet for feeding milk or newspapers. The delivery unit is coupled to the cover is closed by its own load when the delivery unit is not pushed by hand.

By the way, in general, even if the door can not be opened without a key outside the door in the home, the door can be opened by manually turning the inner handle inside the door, and the cover of the delivery dispenser allows the delivery person to put milk or newspaper into the house. Always open so that Therefore, even if the door is locked, the intruder inserts the endoscope through a delivery machine that feeds milk or newspapers, manipulates the inner handle to open the door, invades the house, steals valuables, or turns into a robbery if there is a person in the house. There was a case to harm.

Accordingly, the present invention has been made to solve the conventional problems as described above, the object of the present invention is to rotate the inner handle through the self-delivery inlet to intrude into the room from the door having a delivery injector. An object of the present invention is to provide a door lock that prevents theft and prevents theft.

1 is a state in which the door with the locking device of the door according to the present invention opened inward,

2 is a plan view showing the inside of the locked state of the door lock device according to the first embodiment of the present invention;

3 is a plan view showing the inside of the unlocked state of the door of Figure 2;

4 is an exploded perspective view of an essential part of the actuator of FIG. 2;

5 is a plan view showing the inside of the locked state of the door lock device according to a second embodiment of the present invention;

6 is a plan view showing the inside of the unlocked state of the door of Figure 5;

7 is a cross-sectional view of FIG. 5;

8 is a plan view showing the inside of the locked state of the door locking device according to a third embodiment of the present invention;

Fig. 9 is a plan view showing the inside of the unlocked state of the door of Fig. 8;

10 is a plan view showing the inside of the locked state of the door lock device according to a fourth embodiment of the present invention;

11 is a plan view showing the inside of the unlocked state of the door of Figure 10;

12 is a control block diagram of a door locking device according to the present invention.

<Description of the symbols for the main parts of the drawings>

12: door 14, 314: locking device

16: delivery machine feeder 38: locking body

44: human body detection sensor 46, 48: operation indicator

50: movable body 54: actuator

56: restraining means 58: circuit board

60: battery 68: first lever

72: second lever 74: first elastic member

76: second elastic member 84, 85, 94, 95: locking jaw

86, 98: first and second protrusion pin 102: solenoid

104: latch 106: third elastic member

The locking device of the door according to the present invention, the door is locked / unlocked by the moving body moving by the rotating actuator, the locking body coupled to the inside of the door and the inner handle for manually operating the actuator, and In the door having a delivery injector coupled to the input port into which milk or newspapers are introduced, the locking body is coupled to the restraining means for restraining the operation of the actuator, the interior of the lock body or door The human body sensor is installed to detect the proximity or contact of the occupants in the normal operation, the restraining means to drive the restraint while the occupant is detected by the human body sensing sensor to operate the restraining means And a control circuit for releasing the restraint of the sieve.

The actuator includes a first lever having a flange for pushing the movable body and coupled to the inner handle, a second lever fitted to the lever, and an elastic force for maintaining the first lever at a predetermined angle of rotation. And a second elastic member connecting the first lever and the second lever to impart an elastic force for maintaining the second lever at a predetermined angle with respect to the first lever. The first lever and the second lever are provided with locking jaws for engaging the restraining means, and the first and second protrusion pins for catching the second elastic member are provided, respectively, and the first lever is provided at the edge of the second lever. A recess of a predetermined length is formed in the circumferential direction so as to be caught by the protruding pin so that the second lever rotates only a predetermined rotational angle relative to the first lever; The restraining means may include a solenoid in which the plunger moves forward and backward according to a signal of a control circuit according to a detection signal of the human body sensor, one end of which is caught by an end of the plunger, and the other end of which is caught by the locking jaw, and the latch. It is preferable to include a third elastic member coupled to the latch so as to give an elastic force for maintaining a predetermined rotation position.

The actuator includes a first lever having a flange for pushing the movable body and coupled to the inner handle, a second lever fitted to the lever, and an elastic force for maintaining the first lever at a predetermined angle of rotation. And a second elastic member connecting the first lever and the second lever to impart an elastic force for maintaining the second lever at a predetermined angle with respect to the first lever. The first lever and the second lever are provided with locking jaws for engaging the restraining means, and the first and second protrusion pins for catching the second elastic member are provided, respectively, and the first lever is provided at the edge of the second lever. A recess of a predetermined length is formed in the circumferential direction so as to be caught by the protruding pin so that the second lever rotates only a predetermined rotational angle relative to the first lever; The restraining means may include a motor that rotates according to a signal of a control circuit according to a detection signal of the human body sensor, a gear unit comprising a plurality of gears connected to a motor shaft of the motor to transmit power, and the gear unit. A moving member coupled to move and having a protrusion, one end of which is coupled to the protrusion of the moving member, the other end of which is coupled to the latch so as to give an elastic force for holding the latch at a predetermined rotational position; It may have a structure including a third elastic member.

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

As shown in FIG. 1, the door 12 of a general home or the like is coupled with a locking device 14 to prevent an outsider from entering the house while preventing theft. In addition, the door 12 is provided with a delivery machine 16 coupled to an inlet for feeding milk or newspapers, and a door handle 18 is installed to facilitate opening of the door by hand. In addition, a bracket 24 having a hole 22 into which the locking latch of the locking device described later is fitted is fixed to the door frame 20.

The delivery injector 16 is composed of a frame 26 and a cover 28 hinged to the frame 26 so as to be opened inside the door so as to be closed by its own load when the delivery unit is not pushed by hand. . The damping gear 30 is coupled to the hinge portion of the cover 28 so that the cover is gradually opened and closed. The damping gear 30 is a pair of two gears, the damping action can be implemented by a variety of means, such as the shape of the spiral curve, the degree of engagement of the teeth, the grease having a high viscosity interposed between the engagement surface. .

An outer handle (inner side) of the locking body 38 of the locking device 14 is coupled with an inner handle 42 for moving the locking latch 40 fitted to the hole 22. This inner handle 42 is connected to an actuator described later. In addition, the outer surface of the lock body 38, the human body sensor 44 for detecting the proximity of the occupants living in the room, the operation indicators 46, 48 to display the operation of the locking device, and will be described later The battery cover 49 covering the battery is engaged. On the side of the locking body 38 is formed a hole in which the locking latch 40 protrudes outward.

The human body sensor 44 is a known sensor for detecting a wave coming from the living body, the operation indicator 46, 48 is a state in which the actuator is restrained or restrained by the restraining means described later of the locking device It is an indicator that displays the lock latch is hanging or missing.

On the other hand, the human body sensor is made of a contact sensor provided in the door handle 18 installed inside the door, it may be made of a sensor that emits a detection signal when the indoor resident grab the door handle (18).

In addition, a speaker may be coupled to the locking body such that a light indicating a remaining amount of battery and an open state of the locking latch of the locking device are output as a voice. The human body sensor may be coupled to an upper or lower inner surface (indoor side) of the door, and the speaker may be coupled to an inner surface (indoor side) or an outer surface (outdoor side) of the door.

2 and 3 are plan views showing the locking device 14 of the door according to the first embodiment of the present invention. As shown, inside the locking body 38, the movable body 50 including the locking latch 40 is slidably coupled along the guide rail 52, the rotation of the inner handle 42 In accordance with the actuator 54 for moving the movable body 50 is coupled, the restraining means 56 for restraining the operation of the actuator 54 is coupled. In addition, within the locking body 38, the restraining means 56 is normally driven by driving the restraining means 56 to restrain the actuator 54, and when the occupant is detected by the human body sensor 44, the restraining means 56 is provided. A circuit board 58 including a control circuit for releasing the restraint of the actuator 54 by driving a motor is installed, and a battery 60 for supplying power to the circuit board 58 and the restraining means 56. ) Is combined.

In addition, a detection sensor (not shown) is installed inside the locking body 38 to detect the movement of the movable body.

Two locking latches 40 are fixed to the left end of the movable body 50 by a fastening member 62, and a first lever described later of the actuator 54 is attached to one side of the movable body 50. Concave indentation portion 64 having both sides of the inclined surface 64a is formed, and the outer side of the concave portion 64 is hooked to hang one end of the first elastic member to be described later connected to the first lever ( 66 is protruding.

As shown in FIG. 4, the actuator 54 is provided with a first lever 68 in which the inner handle 42 is fixed while being in contact with the movable body 50, and the first lever 68. A second lever 72 fitted to the key body 70 to which the key body 70 is coupled, a first elastic member 74 to impart an elastic force to maintain the first lever 68 at a predetermined angle of rotation, and the first lever A second elastic member 76 connecting the first lever 68 and the second lever 72 to impart an elastic force for retaining the second lever 72 at a rotational angle at a predetermined angle with respect to the first lever 68. )

The first lever 68 has a flange 80 having an extension 78 that contacts the inclined surface 64a of the movable body 50 and pushes the movable body 50, and is perpendicular to the plane of the flange 80. It consists of a cylindrical portion 82 which protrudes to the inner handle 42 is fixed, the two edges of the restraining means 56 is caught at the edge opposite the extension portion 78 of the flange 80 The jaws 84 and 85 are formed to be spaced apart by a predetermined distance along the circumferential direction, and the one end of the second elastic member 76 is caught between the two locking jaws 84 and 85 at an intermediate portion thereof. The first protruding pin 86 is fitted, and the hook portion 88 protrudes from the extension portion 78 so as to hook the other end of the first elastic member 74.

The key K is inserted into the key body 70 to rotate the second lever 72 to release the latch of the restraining means 56 described later.

The second lever 72 includes a central shaft portion 90 having a cylindrical rod shape, and a flange 92 that is extrapolated to the central shaft portion 90, and the latching jaw of the first lever is attached to the flange 92. Two locking jaws 94, 95 are formed along the circumferential direction at the same interval as the second, and the auxiliary locking jaws 96, 97 are formed between the two locking jaws 94, 95. . The first protrusion pins 86 are moved between the auxiliary locking jaws 96 and 97. That is, between the auxiliary catching jaw (96, 97) is formed in the circumferential direction in the circumferential direction so that the first projection pin (86) is caught so that the second lever (72) is the first lever (68) Only a predetermined rotational angle is rotated relative to.

In addition, a second protruding pin 98 which is engaged with the other end of the second elastic member 76 is fitted to the lower side of the second lever 72. One side of the central shaft portion 90 is inserted into the cylindrical portion 82 of the first lever 68, the key body 70 is fitted to the other side of the central shaft portion 90 is coupled.

One of the locking jaws formed in the second lever 94 is connected to a smooth curved surface so as to gently push the latch described later of the restraining means 56, and the remaining locking jaws formed in the first and second levers are pointed. It is.

The first elastic member 74 is a torsion coil spring having hooks at both ends thereof, and the second elastic member 76 is a tension coil spring having hooks at both ends thereof.

2 and 3, the restraining means 56 includes a solenoid 102 in which the plunger 100 moves forward and backward according to a signal of a control circuit according to a sensing signal of the human body sensor 44. One end thereof is caught by the end of the plunger 100 and the other end thereof has a latch 104 caught by the locking jaw 84 and 94 of the actuator, and an elastic force for holding the latch 104 in a predetermined rotational position. And a third elastic member 106 coupled to the latch 104 to impart.

The solenoid 102 is fixed to the base plate 108 fixed to the locking body 38. The solenoid 102 may be directly fixed to the inner surface of the locking body 38. The base plate 108 is provided with a stopper 110 which stops the engaging jaw 84, 94, 85, 95 so that the actuator 54 is no longer rotated. The stopper 112 which restrains rotation of the is provided. A flange portion 114 is formed at an end of the plunger 100, and a spring 116 is fitted between the flange portion 114 and the solenoid body. This spring 116 is extrapolated to the plunger 100.

The latch 104 is formed in an angle shape, and a hook portion 118 for engaging the intermediate portion of the third elastic member 106 is protruded from the side of the edge where both flanges are connected, and an end of one flange is the latching jaw. The convex groove 120 is formed so that the flange part 114 of the said plunger may be fitted in the edge part of the other flange so that it may be caught by the 84 and 94 easily.

The third elastic member 106 is a torsion spring, the torsion portion is fitted to the hook portion 118, one end thereof is caught by the base plate 108, the other end of the operation of the latch 104 It is caught in the body flange.

Each circuit described later is constituted by the circuit board 58.

The battery 60 may be used by using a general battery or rectifying the AC power to the rectifier.

12 is a control block diagram of a door locking device according to the present invention. As shown, the circuit board is configured with a control circuit 200 controlled by the CPU, the control circuit 200, the human body detection circuit 210, the moving object detection circuit 230, the sound output circuit ( 240, a restraining means driving circuit 250, an operation display circuit 260, and a battery 60 for supplying power to the circuit board are combined.

The control circuit 200 is a circuit for controlling the operation of the entire locking device.

The human body detection circuit 210 is a circuit for detecting whether the indoor residence approaches or contacts the door through the human body detection sensor 44 and inputs it to the control circuit 200.

The moving object movement detecting circuit 230 detects a movement of the moving object 50 through a moving object detecting sensor (not shown in FIG. 2) and inputs it to the control means 200.

The sound output circuit 240 is a circuit for notifying the indoor resident via sound generating means (speakers, buzzers, etc.) whether the restraint of the actuator 54 is released by the control circuit 200.

The restraining means driving circuit 250 is a circuit for driving the solenoid 102 to restrain the actuator 54 by the control of the control circuit 200.

The operation display means 260 operates the state in which the actuator 54 is restrained or restrained by the restraining means 56 under the control of the control circuit 200, and the lock latch is engaged or removed. It is a circuit to display on the indicator.

The operation of the door lock according to the first embodiment of the present invention configured as described above will be described next.

As shown in Fig. 2, in the state where the locking latch 40 protrudes and the door is locked, the plunger 100 protrudes by the elastic force of the spring so that the latch 104 is first and second levers 68 and 72. Since the actuator 54 is locked by the locking jaw 84 and 94 of the door, the door cannot be opened without a key from the outside of the door. Moreover, unless the latch 104 is rotated inside the door and the latch is not released from the first and second levers 68 and 72, the inner handle 42 cannot be turned. Therefore, the person who wants to break into the room will not be able to manipulate the inner handle by inserting the endoscope through the delivery equipment, thereby preventing the intrusion of the thief.

On the other hand, if a resident in the room approaches or contacts the inside of the door to open and exit the door, the detection signal of the human body sensor 44 is input to the control circuit 200 through the human body detection circuit 210, the control The circuit 200 drives the solenoid 102 through the restraining means driving circuit 250. Accordingly, the plunger 100 is drawn into the solenoid body, and the latch 104 is rotated counterclockwise to be spaced apart from the latching portions 84 and 94 of the first and second levers 68 and 72 to operate. Since the restraint of the sieve 54 is released, the indoor occupant can rotate the inner handle 42.

When the indoor resident rotates the inner handle 42 and rotates the first lever 68 counterclockwise, the first protrusion pin 86 is caught by the auxiliary locking jaw 96 of the second lever 72. The first lever 68 and the second lever 72 rotate at the same time. Therefore, the extension part of the first lever 68 is in close contact with the right inclined surface 64a of the movable body 50 to move the movable body 50 to the right, so that the locking latch 40 enters into the locking body 38. Thus, the state in which the movable body 50 moves to the right and the lock latch 40 is loosened is shown in FIG.

And, as shown in FIG. 2, in the locked state, the authorized person inserts the key K from the outside of the door and inserts it into the key body 70 to counterclockwise the second lever 72. When rotated, the second lever 72 first pushes the latch 104 while rotating counterclockwise, and the latch 104 moves the plunger 100 toward the solenoid body while rotating counterclockwise. Thus, the restraint of the actuator 54 is released. At this time, since the locking jaw 94 of the second lever 72 is formed in a gentle curve, the latch 104 is easily pushed.

When the user rotates the key body 70 in such a state, the first protrusion pin 86 is caught by the auxiliary locking jaw 96 of the second lever 72 so that the first lever 68 and the second lever ( 72) rotate simultaneously. Therefore, the extension part of the first lever 68 is in close contact with the right inclined surface 64a of the movable body 50 to move the movable body 50 to the right, so that the locking latch 40 enters into the locking body 38. Thus, the state in which the movable body 50 moves to the right and the lock latch 40 is loosened is shown in FIG.

On the other hand, when the indoor resident opens the door in this way, the control circuit 200 determines the detection signal input through the human body detection circuit 210 and the moving object detection circuit 230 to determine the sound output circuit 240 Sound is generated so that someone living in the room knows that the door is open.

In addition, when the door is opened using the key on the outdoor side, the control circuit 200 determines the detection signal input through the moving object detecting circuit 230 to generate sound through the sound output circuit 240 to access the door. Let the person living in the room know that it is open.

At this time, when the door is opened by operating the actuator through the restraining means by receiving the human body detection signal indoors, and the door is opened by operating the actuator using a key outdoors, the signal is changed differently (for example, When receiving a human body detection signal, it is desirable to ring the bell twice in succession, and when using a key, it is desirable to ring the bell once in a row.

According to the sound signal, it is easy for an indoor resident to know that thieves pick up the keys and operate the actuator at night.

In addition, it is preferable that the operation indicators 46 and 48 display the state (green or red) in which the solenoid 102 is operated, so that the person can easily determine whether the latch is caught outdoors.

5, 6 and 7 show a door locking device 314 according to a second embodiment of the present invention.

In this embodiment, the restraining means is driven by a motor and a gear. That is, the restraining means 356 is connected to the motor 322 which rotates according to the signal of the control circuit 200 according to the detection signal of the human body sensor 44 and the motor shaft of the motor 322 to supply power. A gear unit 324 of a plurality of gears to be transmitted, a moving member 328 coupled to the gear unit 324 and moving and having a protrusion 326, and one end of which is a protrusion of the moving member 328. 326 and the other end of the third elastic member 332 coupled to the latch 330 to impart an elastic force for holding the latch 330 to the locking jaw of the actuator, and to hold the latch 330 in a predetermined rotational position. ) Is included.

The motor 322 is fixed to the base plate 334 fixed to the locking body 38. The base plate 334 is provided with a stopper 336 which stops the locking projections 84, 94, 85 and 95 so that the actuator 54 is no longer rotated. Switches 338 and 340 for detecting the position of the 328 are provided, and a guide member 341 for guiding the moving member 328 is provided.

The gear unit 324 may include a worm 342 fitted to a motor shaft of the motor 322, a worm gear 344 biting the worm, and a first intermediate gear coupled to the same shaft as the worm gear 342. 346, a second intermediate gear 348 to be bitten by the first intermediate gear 346, and a pinion 350 coupled to the same axis as the second intermediate gear 348, and at a reduction gear ratio. It is.

In the movable member 328, a rack tooth form 352 bitten by the pinion 350 is formed, and a guide groove 354 guided by the guide member 341 is formed. The protrusion 326 is in close contact with one side flange of the latch 330 to rotate the latch 330. In addition, the movable member 328 has a contact portion protruding from which the levers of the switches 338 and 340 contact.

The latch 330 is an angle type, the hook portion 355, the intermediate portion of the third elastic member 332 is protrudingly formed on the side of the edge that both flanges are connected, the end of one flange is the locking jaw It becomes convex so that it may be caught easily to (84) (94).

The third elastic member 332 is a torsion spring, the torsion portion is fitted to the hook portion 355, one end thereof is caught by the base plate 334, the other end of the operation of the latch 330 It is caught in the body flange.

Since the rest of the configuration of this embodiment is the same as that of the first embodiment, description thereof will be omitted.

In the lock of the door according to the second embodiment of the present invention configured as described above, if a resident in the room approaches or contacts the door to open and exit the door, the detection signal of the human body sensor 44 is the human body detection circuit 210 The control circuit 200 is input to the control circuit 200, and the control circuit 200 drives the motor 322 through the restraining means driving circuit 250. The rotational force of the motor 322 is a rack of the moving member 328 through the worm 342, the worm gear 344, the first intermediate gear 346, the second intermediate gear 348 and the pinion 350 in sequence. It is transmitted to the teeth 352 to move the moving member 328 to the gear unit 324 side.

Therefore, the protrusion 326 of the movable member 328 pushes the latch 330, and the latch 330 rotates in a counterclockwise direction, so that the locking jaws of the first and second levers 68 and 72 are rotated. Spaced apart from (84) (94) and released from the actuator (54), the indoor occupant is able to rotate the inner handle (42).

Next, when the indoor resident rotates the inner handle 42 to rotate the first lever 68 counterclockwise, the first protrusion pin 86 is placed on the auxiliary latching jaw 96 of the second lever 72. Since the first lever 68 and the second lever 72 are rotated at the same time. Therefore, since the extension part of the first lever 68 is in close contact with the right inclined surface 64a of the movable body 50 to move the movable body 50 to the right side, the locking latch 40 enters into the lock body 38. Thus, the state in which the movable body 50 moves to the right and the lock latch 40 is loosened is shown in FIG.

8 and 9 show the locking device 414 of the door according to the third embodiment of the present invention.

The actuator 454 of the present embodiment is rotatably installed at a predetermined angle on the locking body 402 and the rotating member 422 to which the inner handle 42 is fitted to the outside, and to the inside of the locking body 402. Protruding pin 424 provided on the rotating member 422 to protrude.

At the edge of the rotating member 422, first locking jaws 425 and 425 having the same shape as the locking jaws formed in the first and second levers of the first embodiment of the present invention are formed.

In the movable body 450 of the present embodiment, the motor 430 operated by the switches 426 and 428 is coupled by the rack 434 and the pinion 432, while the restraining means 456 is caught. A guide groove 436 is formed to guide the protruding pin 424 to linearly move the movable body 450 according to the rotation of the locking jaw 435 and the rotation member 422.

In addition, the movable body 450 is formed with a guide groove 438 serving as the guide rail of the first embodiment. The pin 440 fitted to the guide groove 438 protrudes from the inner surface of the locking body 402.

The restraining means 456 of the present embodiment includes a solenoid 444 in which the plunger 442 moves forward and backward according to the signal of the control circuit 200 according to the detection signal of the human body sensor 44, and one end of the plunger The other end of the hook 442 and the other end includes a latch 446 that is caught on the first and second locking jaw 425, 435, respectively. The solenoid 444 of this embodiment is the same as the solenoid of the first embodiment.

Protruding portions 448 and 460 which are respectively caught on the first and second locking jaws are formed at a predetermined distance on one side of the penetrating clamp 446, and the flange portion of the plunger 442 is fitted to the other end. Concave indentation groove 462 is formed.

In the configuration of the present embodiment, when the authorized person enters a password and is authenticated, the motor 430 is operated by pressing the switch 426. When the motor 430 is operated, the movable member 450 moves to the right while the second catching jaw 435 pushes the protrusion 460 to rotate the catch 446 in a clockwise direction to protrude the protrusion 448. Is out of the locking step 425, the restraint of the actuator is released.

The sole action of the solenoid 444 by the detection of the human body detecting sensor 44 is the same as the first embodiment of the present invention.

As such, the state in which the latch of the actuator 454 is released to release the locking latch of the locking device is illustrated in FIG. 9.

10 and 11 are plan views showing the door locking device according to the fourth embodiment of the present invention.

In the present embodiment, the latch 546 of the restraining means 556 includes the first latch 558 that is caught by the first latching jaw 425 of the pivot member 422, and the second latching jaw 435 of the movable body 450. The second latch 560 is first rotated by the movable body 450 to contact the other end of the second latch 560 according to the operation of the motor 430. The first latch 558 is rotated. Thus, the protrusion 548 of the first catch 558 is out of the catch jaw 425, the restraint of the actuator is released.

The rest of the configuration and operation are the same as in the third embodiment of the present invention.

11 shows a state in which the locking of the locking device is released by the locking of the actuator 454 by the above action.

The present invention is not limited to the above embodiments and can be implemented in various modifications.

According to the present invention, it is possible to prevent theft by preventing the inner handle from being pivotally rotated through the delivery slot so that a person who wants to enter the room from the door having the delivery slot is provided.

Claims (3)

delete The door is locked / unlocked by a moving body moved by a rotatable actuator, and an inner handle for manually operating the actuator is coupled to a lock body coupled to the inside of the door, and an inlet through which milk or newspaper is introduced. In the door with the delivery dispenser, Restraining means coupled to the inside of the lock body to restrain the operation of the actuator, a human body sensor installed on the surface of the lock body or the door to sense the proximity or contact of the occupants in the room; A control circuit for controlling the sieve, The actuator, A first lever having a flange for pushing the movable body and coupled to the inner handle, a second lever fitted to the first lever, and a first imparting an elastic force for maintaining the first lever at a predetermined angle of rotation; An elastic member and a second elastic member connecting the first lever and the second lever to impart an elastic force for maintaining the second lever at a predetermined angle with respect to the first lever, The first lever and the second lever are provided with a latching jaw for engaging the restraining means, and the first and second protrusion pins for catching the second elastic member are provided, respectively, and the first protrusion is provided at the edge of the second lever. A recess of a predetermined length is formed in the circumferential direction so as to be caught by the pin so that the second lever rotates only a predetermined rotational angle relative to the first lever; The restraining means, A solenoid in which the plunger is moved back and forth according to a signal of a control circuit according to a detection signal of the human body sensor, one end of which is caught by an end of the plunger, and the other end of which is caught by the catching jaw, and the latch at a predetermined rotational position. And a third elastic member coupled to the latch to impart an elastic force to be retained. The door is locked / unlocked by a moving body moved by a rotatable actuator, and an inner handle for manually operating the actuator is coupled to a lock body coupled to the inside of the door, and an inlet through which milk or newspaper is introduced. In the door with the delivery dispenser, Restraining means coupled to the inside of the lock body to restrain the operation of the actuator, a human body sensor installed on the surface of the lock body or the door to sense the proximity or contact of the occupants in the room; A control circuit for controlling the sieve, The actuator, A first lever having a flange for pushing the movable body and coupled to the inner handle, a second lever fitted to the first lever, and a first imparting an elastic force for maintaining the first lever at a predetermined angle of rotation; An elastic member and a second elastic member connecting the first lever and the second lever to impart an elastic force for maintaining the second lever at a predetermined angle with respect to the first lever, The first lever and the second lever are provided with a latching jaw for engaging the restraining means, and the first and second protrusion pins for catching the second elastic member are provided, respectively, and the first protrusion is provided at the edge of the second lever. A recess of a predetermined length is formed in the circumferential direction so as to be caught by the pin so that the second lever rotates only a predetermined rotational angle relative to the first lever; The restraining means, A motor that rotates according to a signal of a control circuit according to a detection signal of the human body sensor, a gear unit having a plurality of gears connected to the motor shaft of the motor to transmit power, and coupled to the gear unit to move and protrude And a third elastic member coupled to the latch so that one end thereof is caught by the protrusion of the movable member and the other end thereof is caught by the latching jaw, and an elastic force for holding the latch at a predetermined rotational position. The lock of the door, characterized in that it comprises.