KR101912381B1 - Digital Door Lock - Google Patents

Abstract

The present invention relates to a digital door lock wherein an outside handle rotates idly in a door locking state. The digital door lock comprises: a latch bolt driving shaft to slide and move a latch bolt, wherein the upper and lower ends thereof are coupled to be rotated; an outside handle arranged on an outer side of a door lock out body, wherein a rotary body allowing one side of the latch bolt driving shaft to be fixed and coupled thereto protrudes into the out body; a torque transfer member having a through hole penetrated by the latch bolt driving shaft to move straight along an outer wall of the latch bolt driving shaft, and transferring torque by an operation of the outside handle to the latch bolt driving shaft or allowing the outside handle to be idly rotated; a power transfer member coupled to a gear assembly converting torque of a motor controlled by a control unit controlling door locking and unlocking into a linear motion to move straight; and a torque transfer member moving part wherein one side thereof is positioned on a straight moving path of the power transfer member, and the other side thereof is coupled to the torque transfer member to move the torque transfer member straight along the outer wall of the latch bolt driving shaft by a movement of the power transfer member.

Description

Digital Door Lock < RTI ID = 0.0 >

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital door lock, and more particularly to a digital door lock in which an outer handle is idly rotated in a door locked state.

A typical door lock includes a latch bolt which protrudes and comes into the side of the door by operating a rotating means such as a lever. The latch bolt is a means for preventing the door from being automatically opened, and is not a means for locking and unlocking. A mortise lock having a lock structure by a latch bolt and a dead bolt has been developed and used by providing a dead bolt to be locked and unlocked by a knob or grip in order to solve the unstable situation of only the latch bolt .

Also, a digital door lock capable of releasing the dead bolt by the power of the motor is developed and used by pressing a key input button on the outside of the door, using a safety key with a built-in semiconductor chip, and pressing a button inside the door. Such a digital door lock is convenient because it allows the dead bolt to be automatically moved to the locked position through the power of the motor after the door is closed even if the user forgets to lock the door. Of course, the digital door lock can also release the dead bolt by inserting a key.

Recently, digital door locks have been introduced in which dead bolts are removed and sliding movement of the latch bolts is automatically restricted. Such a digital door lock is a method in which the outer handle is prevented from being rotated in the door locked state and the outer handle is allowed to rotate only when a required password is input, whereby the latch bolt is slid according to the rotation of the outer handle. Since this type of digital door lock is applied to a wooden door that is located in an indoor area, some manufacturers refer to it as a wooden door lock.

An example of a digital door lock with a dead bolt removed is disclosed in Korean Patent Publication No. 10-1372590. In the illustrated patented invention, the outer handle can not be rotated arbitrarily because the rotation of the outer handle is restricted by the lock member when the door is locked.

However, since the rotation of the outer handle is restricted by the lock member, if the force is applied to the outer handle or the external impact is applied to the outer handle, the tiltable lock state can be released due to the mating and disengaging of the tiltable member . This is equivalent to unlocking the door, so that there is a problem that the risk of theft due to door opening is increased.

Further, since the lock member is always mechanically engaged with the gear box, when the external handle is repeatedly operated or impacted in the locked state, force is transmitted to the gear box, which may damage the gear box.

Korean Registered Patent Publication KOKAI Publication No. 10-1372590

Accordingly, it is an object of the present invention to provide a digital door lock capable of preventing the door lock from being released by an external impact and an external force by allowing the outer handle to idle while the door is in the locked state, .

It is another object of the present invention to provide a digital door lock capable of preventing an internal part from being damaged or damaged by an external impact, an external force or an operation by making an external handle idle while the door is locked.

According to an embodiment of the present invention, there is provided a digital door lock,

A latch bolt drive shaft slidably moving the latch bolt and coupled to rotate the upper and lower ends thereof;

An outer handle disposed on the outer side of the door lock out body and having a rotating body to which one side of the latch bolt drive shaft is fixedly coupled to the inside of the out body;

A through hole through which the latch bolt drive shaft passes is linearly moved along an outer wall of the latch bolt drive shaft so that a rotational force corresponding to the operation of the outer handle is transmitted to the drive shaft of the latch bolt or the outer handle is idled A rotational force transmitting member;

A power transmitting member coupled to a gear assembly for linearly moving a rotational force of a motor controlled by a control unit for controlling door locking and unlocking;

Wherein one end of the rotation transmitting member is located on the linear movement path of the power transmitting member and the other end is coupled to the rotational force transmitting member to transmit the rotational force transmitting member moving linearly along the outer wall of the latch bolt driving shaft in accordance with the movement of the power transmitting member And a second electrode,

The control unit controls the motor so that the rotation force transmitting member is positioned at the lower end of the latch bolt drive shaft so that the outer handle is idled while the door is in the locked state. do.

Further comprising a controller for controlling the door lock and unlocking so that the rotational force transmitting member rotates the motor so that the rotational force transmitting member is positioned at the engagement portion between the upper end portion and the lower end portion of the latch bolt drive shaft, The control box is another feature,

Further comprising a disk plate having a through hole formed at a center thereof and fixedly coupled to the rotating body, wherein at least one jaw is formed at a position of an outer circumferential surface facing the outer body to limit movement of the outer handle, The height of the lower end of the driving bolt drive shaft protruding from the upper surface of the disk plate is equal to the height of the torque transmitting member.

According to the above-mentioned problem solving means, the digital door lock according to the embodiment of the present invention can prevent the door lock from being released even if an external impact and a force are applied to the external handle due to the external handle being in the idle state in the door locked state, The external impact and the external force or the force applied by the operation are not transmitted to the internal components including the latch bolt drive shaft, thereby preventing the internal components from being damaged or damaged.

Brief Description of the Drawings Fig. 1 is a diagram illustrating an example of the outer and inner configurations of an outer body of a digital door lock according to an embodiment of the present invention; Fig.
FIG. 2 is a view for explaining in detail the latch bolt drive shaft 140 located inside the out body of the digital door lock according to the embodiment of the present invention and its peripheral structure.
3 is a diagram illustrating a detailed configuration of the rotational force transmitting member 350, the power transmitting member 210, and the rotational force transmitting member moving piece 300 in the inside of the digital door lock outside body shown in FIG.
4 is a view for explaining a hinge shaft coupling rod 450 protruding from an inner surface of an outer body of a digital door lock according to an embodiment of the present invention.

It is to be understood that the specific structural or functional description of embodiments of the present invention disclosed herein is for illustrative purposes only and is not intended to limit the scope of the inventive concept But may be embodied in many different forms and is not limited to the embodiments set forth herein.

In addition, the embodiments according to the concept of the present invention can make various changes and have various forms, so that the embodiments are illustrated in the drawings and described in detail herein. It should be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms disclosed, but includes all modifications, equivalents, or alternatives falling within the spirit and scope of the invention.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

1 is a view showing a coupling relationship between an outer handle 110 and a latch bolt assembly 120 coupled to an outer body 100 of an outer body 100 of a digital door lock according to an embodiment of the present invention, The latch bolt driving shaft 140 and the peripheral structure of the latch bolt driving shaft 140 located inside the outer body 100 of the digital door lock according to the embodiment of the present invention will be described in detail.

As shown in FIG. 1, in the latch type or wooden type digital door lock according to the embodiment of the present invention,

A rotary body (not shown) which is provided outside the door lock out body 100 and to which one side of the latch bolt drive shaft 140 slidingly moves the latch bolt 130 is fixedly coupled to the inside of the outboard body 100 And includes a protruding outer handle 110.

The other side of the latch bolt drive shaft 140, to which one side is fixedly coupled to the rotating body, is inserted into a drive shaft through hole (125 of FIG. 2) formed in the latch bolt assembly 120. The latch bolt drive shaft 140 is rotated according to the operation of the external handle 110 and the latch bolt 130 is slid into the latch bolt assembly 120 by the rotation so that the door is unlocked. Structure.

1, reference numeral 200 denotes a gear box including a motor rotated by a control unit (not shown) of a digital door lock, reference numeral 205 denotes a gear assembly connected to a motor rotary shaft, that is, a reduction gear Reference numeral 210 denotes a power transmitting member that is coupled to a side surface of the linear gear of the gear assembly and moves linearly, more specifically, up and down in the longitudinal direction of the outboard body 100 by rotation of the motor will be. The structure of the power transmitting member 210 will be described later.

The latch bolt drive shaft 140 shown in FIG. 1 includes a fixed lower end portion 142 fixed to the rotary body 115, one end of which protrudes from the outer handle 110,

And a rotating upper end portion 144 that is rotatably coupled to the other end of the fixed lower end portion 142. 2 shows a state in which the latch bolt drive shaft 140 is separated from the rotary body 115 in order to clearly illustrate the convenience of the description and the technical arrangements located around the rotary body 115. The latch bolt drive shaft 140, The fixed lower end portion 142 constituting the movable body 115 must be fixedly coupled to the latch bolt drive shaft insertion groove 117 (see FIG. 3) formed in the rotary body 115.

3, the remaining technical constitution of the digital door lock according to the embodiment of the present invention will be described.

3 illustrates a detailed configuration diagram of the rotational force transmitting member 350, the power transmitting member 210, and the rotational force transmitting member moving piece 300 in the inner structure of the digital door lock outer body 100 shown in FIG. 2 .

The digital door lock according to the embodiment of the present invention includes a through hole 352 through which the latch bolt drive shaft 140 passes and linearly moves along the outer wall of the latch bolt drive shaft 140, Is transmitted to the latch bolt drive shaft 140, more specifically, to the lower portion of the rotating upper end 144 of the latch bolt drive shaft 140 and the upper portion of the fixed lower end portion 142, And a rotational force transmitting member 350 for transmitting rotational force only to the fixed lower end portion 142 of the latch bolt drive shaft 140 so as to idle.

The shape of the inner wall of the through hole 352 formed in the rotational force transmitting member 350 is the same as the shape of the inner wall of the latch bolt drive shaft insertion groove 117 formed in the rotary body 115 and the cross sectional shape of the latch bolt drive shaft 140 I have.

In addition, on the outer wall of the rotary force transmitting member 350, which is a circular shape, as shown in a partial enlarged view in FIG. 2, both ends 301 forming a U-shaped cut groove formed in the rotational force transmitting member moving piece 300 to be described later are inserted A groove 360 is formed.

The rotation force transmitting member 350 having the above structure is coupled to the latch bolt drive shaft 140 having one side fixedly coupled to the rotating body 115 and coupled to the rotating body 115 of the external handle 110, ).

A through hole 117 is formed in the center of the disc plate 105 so that the fixed lower end 142 of the latch bolt drive shaft 140 passes through the center of the disc plate 105 and is bolted and fixed on the rotating body 115, And at least one jaw 106 for limiting the movement of the outer handle 110 is formed at a position of the outer circumferential surface.

An important point is that the lower end of the latch bolt drive shaft 140 protruding from the upper surface of the disc plate 105, that is, the height of the fixed lower end portion 142, as shown in (A) The rotational force of the outer handle 110 is transmitted to the outer peripheral side of the latch bolt drive shaft 140 in accordance with the moving position of the rotational force transmitting member 350 only when the rotational force transmitting member 350 surrounding the fixed lower end portion 142 is equal to or less than the height It is transmitted to the upper end 144 or only to the fixed lower end 142 of the latch bolt drive shaft 140 so that the outer handle 110 can idle.

Meanwhile, in the digital door lock according to the embodiment of the present invention, the rotational force of the motor 200 controlled by the control unit for controlling the door locking and unlocking is set to A power transmitting member 210 coupled to the gear assemblies 205 and 207 for linear motion and linearly moving,

One side (which can be displayed as 305) is positioned on the linear movement path of the power transmitting member 210 and the other side (which can be displayed as 301) is coupled to the rotational force transmitting member 350 to move the power transmitting member 210 And a rotational force transmitting member moving piece 300 for linearly moving the rotational force transmitting member 350 along the outer wall of the latch bolt drive shaft 140.

3, the power transmitting member 210 includes a linear gear 207 meshing with a reduction gear 205 connected to a rotation shaft of a motor located in the gear box 200, The body of the power transmitting member 210 may be coupled to the guide hole 207 and linearly moved along the guide hole 209. [

A pin 305 protruding obliquely from one side of the rotational force transmitting member moving piece 300, more specifically, the hinge hole 303 is inserted into one side of the body of the power transmitting member 210, Shaped pin insertion grooves are formed.

As the pin 305 is positioned in the 'C' shaped pin insertion groove 215, the pin 305 is moved in the direction of the body of the power transmitting member 210, The circular movement of the U-shaped incision groove ends 301 located on the other side of the pin 305 by the circular motion causes circular movement of the U-shaped incision groove ends 301 Can be linearly moved along the latch bolt drive shaft 140. [0050] As shown in FIG. The sensing means necessary for limiting the linear travel distance of the power transmitting member 210 may be mounted or positioned on the side or periphery of the power transmitting member 210. [

3, a U-shaped cutout groove is formed at one side of the rotational force transmitting member moving piece 300, and the U-shaped cutout cutout groove is formed at one side of the rotational force transmitting member moving piece 300 A bent surface 307 is formed on the other side of the hinge hole 303. A hinge hole 303 is formed at the end of the bent surface 307 so that the hinge shaft 400 coupled to the door lock out body 100 passes therethrough, A pin 305 positioned on the linear movement path of the power transmitting member 210 is formed at an outer wall of the shaft 303 so as to protrude obliquely. When the pin 305 is circularly moved by an external force in the rotational force transmitting member moving piece 300 having such a structure, both ends 301 of the U-shaped cutout groove located on the other side are circularly moved at a certain angle The structure in which both ends 301 of the U-shaped incision grooves are inserted can be linearly moved up and down or right and left.

In the meantime, the digital door lock according to the embodiment of the present invention may further include a controller for controlling door locking and unlocking, although not shown in the accompanying drawings. When the user authentication information requested in the door locking state is inputted, And controls the rotation of the motor so that the rotational force of the outer handle 110 can be transmitted to the latch bolt drive shaft 140. Further, when the door lock state is confirmed, the controller controls the rotation of the motor to control the position of the rotation force transmitting member 350 so that the external handle 110 idles.

Hereinafter, the operation of the digital door lock according to the embodiment of the present invention will be described.

As shown in FIG. 1, the latch bolt drive shaft 140 is fixedly coupled to a rotating body 115 formed at one side of the door body 100, and the latch bolt assembly 120 is coupled to the other side I suppose.

Under this assumption, the control unit rotates the motor to move the power transmitting member 210 shown in FIG. 2 to the downward limit position with respect to the longitudinal direction of the outboard body 100 in order to lock the door. In this case, the upper end of the pin insertion slot 215 formed on the side of the power transmitting member 210 is moved downward, and the pin 305 protruding from the rotational force transmitting member moving piece 300 is pushed downward.

When the pin 305 is circularly moved at a predetermined angle by an external force, both ends 301 of the U-shaped cutout groove located on the other side of the pin 305 are circularly moved at a predetermined angle, The structure in which the both ends 301 are inserted, that is, the rotational force transmitting member 350 is also moved toward the disc plate 105.

Referring to a partially enlarged view (A) of FIG. 2, in the door locked state, the rotational force transmitting member 350 moves to the disc plate 105 as described above. The height of the fixed lower end portion 142 of the latch bolt driving portion 140 protruded above the disk plate 105 is the same as the height of the fixing lower end portion 142 of the latch bolt driving portion 140, Thereby maintaining the state of being matched with the outer wall of the lower end portion 142.

The rotational force transmitting member 350 is engaged with the outer wall of the fixed lower end portion 142 of the latch bolt driver 140 because the rotational upper end portion 144 and the fixed lower end portion 142 of the latch bolt drive shaft 140 are rotatably coupled to each other, The rotational force of the outer handle 110 is not transmitted to the rotating upper end 144 of the latch bolt driving unit 140, resulting in the outer handle 110 becoming idle.

Therefore, the digital door lock according to the embodiment of the present invention can prevent the door lock from being released even if external force and force are applied to the external handle 110 due to the external handle 110 being in the idle state in the door locked state, The impact and the external force or the force applied by the operation are not transmitted to the internal parts including the latch bolt drive shaft 140, thereby preventing the internal parts from being damaged or damaged.

If the user authentication information such as the password is normally input in the door locking state, the control unit controls the rotation of the motor to linearly move the power transmitting member 210 upward with respect to the longitudinal direction of the outboard body 100.

The lower end of the pin insertion slot 215 formed on the side of the power transmitting member 210 is moved upward to push up the pin 305 protruding from the rotational force transmitting member moving piece 300 upwardly, 305 are also circularly moved upward so that the structure in which both ends 301 of the U-shaped incision grooves are inserted, that is, the rotational force transmitting member 350 is inserted into the disc plate 105, And moves toward the rotation upper end portion 144 of the latch bolt driving portion 140. [

2, the height at which the rotational force transmitting member 350 is spaced apart from the disc plate 105 is set such that the rotational force transmitting member 350 is positioned at the lower end of the rotational upper end portion 144 of the latch bolt drive shaft 140 The rotational force of the outer handle 110 is transmitted to the rotating upper end portion 144 of the latch bolt drive shaft 140 so that the latch bolt 130 can be slidably moved have. That is, the linear movement distance through which the rotational force transmitting member 350 moves along the latch bolt drive shaft 140 should be set to a position surrounding both the rotational upper end portion 144 and the fixed lower end portion 142 of the latch bolt drive shaft 140, The width of the pin insertion slot 215 and the position of the pin 305 should be determined in consideration of the linear movement distance.

As described above, when the rotational force transmitting member 350 is moved to a position where the lower end of the rotational upper end 144 and the upper end of the fixed lower end 142 of the latch bolt drive shaft 140 are simultaneously surrounded by the control unit, The latch bolt drive shaft 140 rotates so that the latch bolt drive shaft 140 rotates in response to the rotation of the latch bolt drive shaft 140. As the latch bolt drive shaft 140 rotates, The latch bolt 130 located in the bolt assembly 120 is slidably moved and the door lock state is released according to the operation of the outer handle 110. [

3, the rotating force transmitting member moving piece 300 of the digital door lock according to the embodiment of the present invention is supported by a hinge shaft 400 coupled to both sides of the door lock out body 100, Respectively.

In order to minimize deformation of the hinge shaft 400, it is desirable to shorten the length thereof. 4, a hinge shaft coupling rod 450 protruding from the inner surface of the door body 100 of the door lock is used so that the hinge shaft coupling rod 450 is positioned near the rotational force transmitting member moving piece 300, It may be desirable to secure the shaft 400. The upper end of each hinge shaft coupling rod 450 may have a groove in which the end of the hinge shaft 400 is seated and the end of the hinge shaft 400 may be fixed using bolts or other fixing members.

While the invention has been shown and described with reference to certain embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. For example, in the embodiment of the present invention, a digital door lock which can be used both as a left and an excellent door has been described. However, the same applies to all digital door locks requiring exclusive use of left- can do. Accordingly, the true scope of the present invention should be determined only by the appended claims.

Claims (10)

A latch bolt drive shaft which is slidably moved by a latch bolt and is coupled so that an upper end portion and a lower end portion of the latch bolt are rotatable relative to each other, and a rotary body provided outside the door lock out body and to which one side of the latch bolt drive shaft is fixedly coupled is protruded to the inside of the out body And a through hole through which the latch bolt drive shaft passes is linearly moved along an outer wall of the latch bolt drive shaft so that a rotational force corresponding to the operation of the external handle is transmitted to the latch bolt drive shaft in accordance with the movement position, A power transmitting member which is coupled to a gear assembly for converting a rotational force of a motor controlled by a control unit for controlling the door locking and unlocking to a linear motion and linearly moving, One side is located on the straight path and the other side is Is coupled to the torque transmission member comprising the power transmitting rotational force to the rotational force transmitting member in response to the movement of the moving member straight along the outer wall of the latch bolt shaft transmission member moving piece and the hinge shaft coupled to the door lock-out body,
A U-shaped cutout groove is formed at one side of the rotation force transmitting member and a bent surface is formed at the other side where the U-shaped cutout groove is formed. A hinge hole is formed at an end of the bent face to allow the hinge shaft to pass therethrough, A pin is protruded from an outer wall of the hole so as to be positioned on a linear movement path of the power transmitting member,
And both ends of the hinge shaft are inserted and mounted in grooves formed on the upper surfaces of the two hinge shaft rods protruding from the inner surface of the door lock out body. The motor control system according to claim 1, further comprising a controller for controlling door locking and unlocking, wherein the controller controls the motor so that the rotation force transmitting member is positioned at a lower end portion of the latch bolt drive shaft so that the external handle is idled when the door is locked A digital door lock. [2] The apparatus of claim 1, further comprising a control unit for controlling door locking and unlocking, wherein the control unit controls the rotation force transmitting member to engage with an upper end portion and a lower end portion of the latch bolt drive shaft, Wherein the motor is controlled to be located at a predetermined position. The disk apparatus of claim 1, further comprising: a disk plate having a through hole formed at a center thereof and fixedly coupled to the rotating body, wherein at least one jaw for limiting movement of the outer handle is formed at a position of a facing outer circumferential surface, And the height of the lower end of the driving bolt drive shaft protruding from the upper surface of the disk plate is equal to the height of the torque transmitting member. 5. The battery pack according to any one of claims 1 to 4, wherein the latch bolt drive shaft
A fixed lower end portion having one side fixedly coupled to the rotating body by a spring pin;
And a pivoting upper end rotatably coupled to the other end of the fixed lower end portion. The rotary bolt according to any one of claims 1 to 4, wherein an inner wall shape of the through hole formed in the rotational force transmitting member and an inner wall shape of the latch bolt drive shaft insertion groove formed in the rotating body have the same shape as the cross sectional shape of the latch bolt drive shaft Features a digital door lock. The digital door lock according to any one of claims 1 to 4, wherein a groove is formed along an outer circumference of the outer wall of the rotational force transmitting member such that both ends forming the U-shaped cutout groove are inserted. delete delete The power transmission device according to any one of claims 1 to 4,
A linear gear engaged with a reduction gear connected to a motor rotary shaft;
And a pin insertion groove is formed on one side of the body so that one side of the torque transmitting member moving member is inserted into the pin insertion groove.

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