KR200443871Y1 - Digital door lock - Google Patents

Abstract

The present invention relates to a digital door lock, and when the automatic locking device and the panic device are operated at the same time to block the operation force of the panic device to be transmitted to the drive motor, to prevent the overload phenomenon of the drive motor by the operation force of the panic device. For the purpose of

The present invention for achieving this purpose, has a mortis, mortis has a dead bolt, a latch bolt, a drive motor for driving the dead bolt, a power transmission device for transmitting the forward and reverse driving force of the drive motor to the dead bolt And a panic device for releasing the dead bolt and the latch bolt as the inner handle is operated, and an automatic locking device for locking the dead bolt as the door is closed, wherein the power transmission device is connected to the drive motor. The driving bevel gear is installed, the driven bevel gear installed in the mortis so as to be engaged with the driving bevel gear, and the mortis is installed in the mortis so as to rotate about the driven bevel gear, and the dead bolt is moved while rotating between the first and second positions. The actuating lever to press the actuating lever in the second position direction at the forward rotation of the driven bevel gear, and at the reverse rotation of the driven bevel gear. And a second pressurizing portion for pressurizing the copper lever in the first position direction, wherein the first and second pressurizing portions release the pressurization of the actuating lever when the automatic locking device and the panic device are operated at the same time. Slip phenomena can occur to prevent power transmission between the bevel gears.

Description

DIGITAL DOOR LOCK}

1 is a side view showing a general digital door lock,

2 is a cross-sectional view taken along the line II-II of FIG. 1 showing a general digital door lock;

3 is a cross-sectional view showing a digital door lock according to the present invention,

4 is a cross-sectional view taken along line IV-IV of FIG. 3 showing a digital door lock of the present invention;

5 is an exploded perspective view of the power transmission device constituting the digital door lock of the present invention,

6 is an operation diagram showing the operation of the present invention,

7 is a cross-sectional view taken along line VII-VII of the operation of the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

1: Mortis 3: Dead Bolt

5: Latch Bolt 7: Outer Body

9: inner body 10: outer handle

12: inner handle 20: panic system

22: push flight 24: interlocking lever

30: automatic locking device 32: pressed piece

34: sensor 36: controller

40: drive motor 42: motor shaft

50: power train 60: drive bevel gear

70: driven bevel gear 70a: center of gear rotation

80: operating lever 82: lever rotation center shaft

84: lever portion 84a: one side portion

84b: other side 90: first pressing part

92: mounting hole 94: pressure ball

96: spring 100: second pressing portion

102: mounting hole 104: pressure ball

106: spring

The present invention relates to a digital door lock, and more particularly, by preventing the operation force of the panic device from being transmitted to the drive motor when the automatic locking device and the panic device are operated at the same time, the operation force of the panic device. The present invention relates to a digital door lock capable of preventing overloading of the driving motor and damage of the driving motor.

As shown in FIG. 1, the digital door lock includes a mortise 1 embedded in the door D, and the mortise 1 includes a dead bolt 3 and a latch bolt 5.

The dead bolt 3 is for maintaining the locked state of the door D. The dead bolt 3 is released by manipulating the button 7a of the outer body 7 or a safety key (not shown) having a semiconductor chip embedded therein. It is configured to be released by contacting the contact portion 7b or to be released by operating the manual operation device 9a installed on the inner body 9.

The latch bolt 5 is for maintaining the closed state of the door D, and configured to be released by rotating the outer handle 10 or the inner handle 12 installed in the inner and outer bodies 9 and 7. do.

In addition, the digital door lock (hereinafter, abbreviated as "door lock"), as shown in FIGS. 1 and 2, when the inner handle 12 is operated only once inside the door D, the dead bolt 3 and the latch bolt are operated. A panic system 20 capable of simultaneously unlocking 5 is provided.

The panic device 20 includes a push piece 22 provided on the central shaft 12a of the inner handle 12 and an interlock lever 24 provided on the mortise 1 so as to rotate while being pressed by the push piece 22. ). In particular, the interlocking lever 24 has a distal end connected to the dead bolt (3). Accordingly, the dead bolt 3 is released from the locking position A1 to the release position A2 while being pressed and rotated by the push piece 22.

According to the panic device 20, the dead bolt 3 and the latch bolt 5 can be released at the same time by manipulating the inner handle 12 only once, which is very convenient to use, and the door D can be quickly opened in an emergency. Can be opened.

And the door lock is equipped with the automatic locking device 30 which automatically moves the deadbolt 3 of the release position A2 to the locking position A1, when the door D is closed.

The automatic locking device 30 is a sensor for detecting a pressing movement of the pressing piece 32 and the pressing piece 32 installed on the mortise 1 so that the door D is pressed by the door frame D1 as the door D is closed. 34 and a controller 36 for driving the driving motor 40 in the reverse direction in accordance with the detection signal of the sensor 34.

In particular, the controller 36, when the detection signal is input from the sensor 34, determines that the door D is closed, and drives the driving motor 40 in the reverse direction. In this case, the driving motor 40 driving in the reverse direction is performed. The power is transmitted to the dead bolt (3) through the power transmission device 50, the dead bolt (3), the reverse drive force is transmitted is moved from the unlocking position (A2) to the locking position (A1) automatically the door frame ( Locked to D1).

According to the automatic locking device 30, the door D is automatically locked to the door frame D1 as the door D is closed, so a separate manual operation is required to lock the door D. none. Thus, it is very convenient to use.

On the other hand, the power transmission device 50 for transmitting the driving force of the drive motor 40 to the dead bolt (3), the drive bevel gear 52 and the drive bevel is provided on the motor shaft 42 of the drive motor 40 A driven bevel gear 54 engaged with the gear 52 and an actuating lever 56 provided on the rotation center shaft 54a of the driven bevel gear 54.

In particular, when the driven bevel gear 54 is rotated, the operating lever 56 rotates the dead bolt 3 to the locking position A1 while integrally rotating between the first position C1 and the second position C2. To the release position A2, or from the release position A2 to the locking position A1.

By the way, in the conventional door lock, the panic device 20 is operated at the same time when rotating the inner handle 12 to open the door (D) again in the process of operating the automatic locking device (30) As a result, it has been pointed out that the driving force of the driving motor 40 and the operating force of the inner handle 12 collide with each other, thereby overloading the driving motor 40.

That is, when the automatic locking device 30 is operated, the driving force of the drive motor 40 is to move the dead bolt (3) from the release position (A2) to the locking position (A1) direction, the panic device (20) When is operated, the operating force of the inner handle 12 attempts to move the dead bolt 3 from the locking position A1 to the release position A2.

Therefore, when the automatic locking device 30 and the panic device 20 are operated at the same time, the driving force of the driving motor 40 to move the dead bolt 3 to the locking position A1, and the dead bolt 3 are released. The operating forces of the inner handle 12 to be moved to the position A2 collide with each other, and as a result, a disadvantage arises that the driving motor 40 is overloaded. In particular, by overloading the drive motor 40, there is a problem that the drive motor 40 is burned out or shortened life.

The present invention is devised to solve the conventional problems as described above, the object is, when the automatic locking device and the panic device is operated at the same time, by configuring the operation force of the panic device is not transmitted to the drive motor, It is to provide a digital door lock to prevent the overload phenomenon of the drive motor by the operating force.

Another object of the present invention, by preventing the overload phenomenon of the drive motor by the operating force of the panic device, it is possible to prevent burnout of the drive motor due to the overload, and thus, a digital door lock that can extend the life of the drive motor To provide.

In order to achieve the above object, the present invention has a mortis, the mortis is a dead bolt, a latch bolt, a drive motor for driving the dead bolt, and the forward and reverse driving force of the drive motor the dead bolt A power transmission device for transmitting to the vehicle, a panic device for releasing the dead bolt and the latch bolt at the same time as the inner handle is rotated, and an automatic locking device for locking the dead bolt by reverse driving the drive motor as the door is closed. In the digital door lock comprising a drive bevel gear installed on the motor shaft of the drive motor, a driven bevel gear installed in the mortis to mesh with the drive bevel gear, and the driven bevel gear Installed in the mortise so as to rotate relative to the motor and move the deadbolt while rotating between the first and second positions. An actuating lever, a first pressurizing portion for urging said actuating lever in the second position direction at the forward rotation of said driven bevel gear, and a pressurizing portion of said actuating lever at the first position direction at the reverse rotation of said driven bevel gear. And a second pressurizing part, wherein the first and second pressurizing parts release the pressurization of the actuating lever when the automatic locking device and the panic device operate at the same time, thereby transferring power between the actuating lever and the driven bevel gear. It is characterized in that the slip phenomenon can occur to be blocked.

Hereinafter, preferred embodiments of the digital door lock according to the present invention will be described in detail with reference to the accompanying drawings (the same components will be described using the same reference numerals).

First, before looking at the features of the present invention, a brief look at the door lock with reference to FIG.

The door lock includes a panic device 20 and an automatic locking device 30. The panic apparatus 20 is provided with the push piece 22 provided in the center axis | shaft 12a of the inner handle 12, and the interlocking lever 24 which rotates while being pressed by the push piece 22. As shown in FIG. In particular, the interlock lever 24 is depressed by the push piece 22 to release the dead bolt (3) from the locking position (A1) to the release position (A2).

The panic device 20 is unlocked while the inner handle 12 is rotated, while the latch bolt 5 interlocked with the inner handle 12 moves from the locked position B1 to the released position B2. At the same time, the push piece 22 provided on the inner handle 12 also rotates by pressing the interlocking lever 24. Then, the dead bolt 3 connected to the interlock lever 24 is also released from the locking position A1 to the release position A2. Accordingly, as the inner handle 12 is rotated, the latch bolt 5 and the dead bolt 3 are released at the same time.

The automatic locking device 30 includes a pressing piece 32 pressed by the door frame D1 as the door D is closed, a sensor 34 detecting a pressing movement of the pressing piece 32, and a sensor ( The controller 36 is configured to drive the driving motor 40 in the reverse direction according to the detection signal of 34.

In particular, when the sensing signal is input from the sensor 34, the controller 36 determines that the door D is closed, drives the driving motor 40 in the reverse direction, and drives the power of the driving motor 40 driven in the reverse direction. The dead bolt 3 is transmitted to the dead bolt 3 through the power transmission device 50, and the dead bolt 3 to which the reverse driving force is transmitted moves automatically from the release position A2 to the locking position A1 and automatically moves to the door frame D1. Is locked in.

Next, the features of the digital door lock according to the present invention will be described in detail with reference to FIGS. 3 to 5.

First, the door lock of the present invention is provided with a power transmission device 50 for operatively connecting the drive motor 40 and the dead bolt (3), the power transmission device 50 is a motor of the drive motor 40 An actuating lever 80 rotatable with respect to the driving bevel gear 60 provided on the shaft 42, the driven bevel gear 70 meshing with the driving bevel gear 60, and the driven bevel gear 70. ).

The driven bevel gear 70 has a gear rotation center shaft 70a rotatably provided in the mortise 1, and a shaft hole 72 is formed in the gear rotation center shaft 70a.

Such driven bevel gear 70 rotates about the gear rotation center axis 70a. Particularly, since the driving bevel gear 60 is meshed with the driving bevel gear 60, the driving force of the driving motor 40 is transmitted to perform forward and reverse rotation.

The operation lever 80 includes a lever rotation center shaft 82 and a lever portion 84 extending from the lever rotation center shaft 82.

The lever rotation center shaft 82 is rotatably coupled to one side of the shaft hole 72 of the driven bevel gear 70, and the other side is rotatably installed to the mortise (1). The lever portion 84 is connected to the dead bolt (3), by pushing the dead bolt (3) directly to move.

Since the operation lever 80 is rotatably coupled to the shaft hole 72 of the driven bevel gear 70, it rotates with respect to the driven bevel gear 70. In particular, the dead bolt (3) from the locking position (A1) to the release position (A2), or from the release position (A2) while the rotary motion between the first position (C1) and the second position (C2) Push A1) to exercise.

3 to 5 again, the power transmission device 50 of the present invention includes a transmission means for transmitting the forward and reverse rotational force of the driven bevel gear 70 to the operation lever 80.

The transmission means includes a first pressing portion 90 for pressing the lever portion 84 of the actuating lever 80 in the second position C2 direction when the driven bevel gear 70 rotates forward, and the driven bevel gear 70. And a second pressurizing portion 100 for pressing the lever portion 84 of the actuating lever 80 in the first position C1 at the time of reverse rotation.

As shown in FIG. 5, the first pressing unit 90 can be mounted on the installation hole 92 and the installation hole 92 formed at one side of the gear rotation center axis 70a of the driven bevel gear 70. And a spring 96 for elastically pressing the pressure ball 94 in a direction protruding from the installation hole 92.

In particular, the pressure ball 94, a portion thereof protrudes outward in the state in which the mounting hole 92 is in contact, the portion of the protruding pressure ball 94 of the lever portion 84 of the operating lever 80 It interferes with one side 84a.

As shown in FIG. 3, since the first pressing unit 90 interferes with one side portion 84a of the lever unit 84, when the driven bevel gear 70 rotates forward, the lever unit 84 is rotated. Push one side portion (84a) of the pressure. In particular, the pressure is applied to the second position C2.

Therefore, the lever portion 84 pressed in the second position C2 direction rotates in the direction of the second position C2 while the dead bolt 3 is moved from the locking position A1 to the release position A2. To make it possible.

As shown in FIG. 5, the second pressing unit 100 can be mounted on the installation hole 102 and the installation hole 102 formed at the other side of the gear rotation center axis 70a of the driven bevel gear 70. It is provided with a pressure ball 104 to be installed, and a spring 106 for elastically pressing the pressure ball 104 in a direction projecting from the installation hole (102).

In particular, the pressing ball 104, a portion of the pressing ball 104 protrudes outwards in the state in which the mounting hole 102, the portion of the protruding pressing ball 104 of the lever portion 84 of the operating lever 80 It interferes with the other side 84b.

Since the second pressing part 100 interferes with the other part 84b of the lever part 84, as shown in FIG. 3, the other side of the lever part 84 at the time of forward rotation of the driven bevel gear 70. The portion 84b is pushed to press it. In particular, the pressure is applied in the direction of the first position C1.

Therefore, while the lever portion 84 pressed in the first position C1 direction rotates in the first position C1 direction, the dead bolt 3 is moved from the release position A2 to the locking position A1 by movement. To make it possible.

According to the first and second pressurizing parts 90 and 100 having such a configuration, since the one side portion 84a and the other side portion 84b of the actuating lever 80 are pushed and pressed, the positive bevel gear 70 is fixed. The reverse rotational force is transmitted to the operating lever 80. Therefore, the forward and reverse driving force of the drive motor 40 can be transmitted to the dead bolt (3).

Again, referring to FIGS. 3 to 5, the springs 96 and 106 of the first and second pressing units 90 and 100 have a greater tension than the driving force of the driving motor 40, and the driving motor 40. It should be less than the torsional stress (Torsional Stress) between the driven bevel gear 70 and the operating lever 80 generated by the driving force and the operating force of the inner handle 12 in the opposite direction.

Because the tension of the springs 96 and 106 is greater than the driving force of the driving motor 40, the pressure greater than the driving force of the driving motor 40 is the pressure ball of the first and second pressing units 90 and 100. This is because it acts between the 94 and 104 and the actuating lever 80, and a pressure greater than the driving force of the driving motor 40 must act between the pressing balls 94 and 104 and the actuating lever 80, so that the driving motor In the forward and reverse driving of the 40, the pressing balls 94 and 104 of the first and second pressing parts 90 and 100 are not crushed by the operating lever 80 and are not inserted into the installation holes 92 and 102. This is because the pressing levers 94 and 104 must not be crushed by the installation holes 92 and 102, so that the operating lever 80 is moved from the first position C1 to the second position C2, or the second position ( This is because the pressure can be pushed to the first position C1 from C2).

Further, the reason why the tension of the springs 96 and 106 should be less than the torsional stress between the driven bevel gear 70 and the actuating lever 80 is that the tensions of the springs 96 and 106 are driven by the driven bevel gear 70. 6 and 7, when the driving force of the drive motor 40 and the operating force of the inner handle 12 collide with each other, the first and second forces must be smaller than the torsional stress between the actuating levers 80. This is because the pressing balls 94 and 104 of the pressing parts 90 and 100 can be inserted into the mounting holes 92 and 102 while being crushed by the operation lever 80, and the pressing balls 94 and 104 are installed into the mounting holes 92. This is because the actuating lever 80 can be freed from the interference of the pressing balls 94 and 104 only by being crushed by 102.

In addition, since the actuating lever 80 deviates from the interference of the pressing balls 94 and 104, a slip phenomenon occurs between the driven bevel gear 70 and the actuating lever 80, and the driven bevel gear 70 and This is because when the automatic locking device 30 and the panic device 20 are operated at the same time only when slippage occurs between the operating levers 80, the operating force of the inner handle 12 is not transmitted back to the driving motor 40. .

According to the first and second pressing sections 90 and 100 having such a configuration, the driven bevel gear 70 is normally fixed by pressing one side portion 84a and the other side portion 84b of the actuating lever 80. The reverse rotational force is transmitted to the operating lever 80. Therefore, the driving force of the drive motor 40 transmitted to the driven bevel gear 70 is transmitted to the operating lever 80 and the dead bolt (3).

On the other hand, when the panic device 20 and the automatic locking device 30 are operated at the same time, by releasing the pressure on the operating lever 80, the power transmission between the driven bevel gear 70 and the operating lever 80 mutually. To block. Therefore, the operating force of the inner handle 12 transmitted to the operating lever 80 is not transmitted back to the drive motor 40.

As a result, during simultaneous operation of the automatic locking device 30 and the panic device 20, the driving force of the drive motor 40 and the operating force of the inner handle 12 does not collide with each other, and accordingly, the inner handle 12 This prevents the overload phenomenon of the drive motor 40 due to the operating force of the reverse transmission to the drive motor (40).

In the above described a preferred embodiment of the present invention by way of example, the scope of the present invention is not limited only to this specific embodiment, it can be changed appropriately within the scope described in the utility model registration claims.

As described above, according to the digital door lock according to the present invention, when the automatic locking device and the panic device are operated at the same time, since the operation force of the inner handle is not transmitted to the drive motor, There is an effect that can prevent the overload phenomenon of the drive motor in advance.

In addition, even when the automatic locking device and the panic device are operated at the same time, the overload phenomenon of the drive motor can be prevented, and thus the burnout of the drive motor due to the overload can be prevented, thus extending the life of the drive motor. .

Claims (2)

It has a mortis (1), the mortis (1) is a dead bolt (3), a latch bolt (5), a drive motor 40 for driving the dead bolt (3), the drive motor 40 The power transmission device 50 transmitting the forward and reverse driving force to the dead bolt 3 and the panic to release the dead bolt 3 and the latch bolt 5 simultaneously by rotating the inner handle 12. A digital door lock comprising a device (20) and an automatic locking device (30) for locking the dead bolt (3) by driving the drive motor (40) back as the door (D) is closed. The power transmission device 50 is installed in the mortise 1 to be engaged with the drive bevel gear 60 is installed on the motor shaft 42 of the drive motor 40, and the drive bevel gear 60. The dead bolt (70) is installed in the mortise (1) so as to rotate relative to the driven bevel gear 70 and the driven bevel gear (70) while rotating between the first position (C1) and the second position (C2) 3) an actuating lever 80 for moving the first and a first pressing part 90 for pressing the actuating lever 80 in a second position C2 in the forward rotation of the driven bevel gear 70; It includes a second pressing portion 100 for pressing the operating lever 80 in the first position (C1) direction at the time of reverse rotation of the driven bevel gear 70, The first and second pressing units 90 and 100 release the pressurization of the operating lever 80 when the automatic locking device 30 and the panic device 20 operate at the same time. 80) and the driven bevel gear 70 is a digital door lock, characterized in that the slip phenomenon can occur so that the power transmission between each other. The method of claim 1, The first pressing unit 90, The mounting hole 92 formed on one side of the driven bevel gear 70 and the mounting hole 92 to press the one side portion 84a of the operating lever 80 in the second position C2 direction. And a spring (96) elastically pressurized in a direction projecting the pressure ball (94) from the installation hole (92), which is installed to be protruding in the The second pressing unit 100, The installation hole 102 to press the mounting hole 102 formed on the other side of the driven bevel gear 70 and the other side portion 84b of the actuating lever 80 in the first position C1 direction. And a spring (106) for elastically pressurizing the ball in a direction protruding from the installation hole (102), and a pressure ball (104) which is installed and mounted on and The pressure ball (94, 104) and the spring (96, 106) of the first and second pressing portion (90, 100), the automatic locking device 30 and the panic device (20) at the same time, the operation When the operating force of the inner handle 12 reversely transferred to the lever 80 and the driving force of the driving motor 40 transmitted to the driven bevel gear 70 act in opposite directions, the operating lever 80 Digital door lock, characterized in that to release the pressure on the actuating lever (80) while pressing each of the one side portion (84a) and the other portion (84b).

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