WO2014030855A1

WO2014030855A1 - Tubular type latch having two-stage up-down structure

Info

Publication number: WO2014030855A1
Application number: PCT/KR2013/006981
Authority: WO
Inventors: 강재욱; 강재석
Original assignee: Kang Jae-Uk
Priority date: 2012-08-23
Filing date: 2013-08-02
Publication date: 2014-02-27
Also published as: KR20140025854A; KR101404431B1

Abstract

The present invention relates to a tubular type latch having a two-stage up-down structure. The tubular type latch having a two-stage up-down structure according to one embodiment of the present invention includes: a pair of door lock main bodies coupled to a lever and disposed on the interior side and exterior side of a door; and a door latch module arranged between the pair of door lock main bodies and disposed in the door so as to lock or release the door to/from a door frame. The door latch module has: a latch body unit having an accommodating space and an entrance which communicates with the accommodating space; a stopper unit disposed in the latch body unit; a latch bolt unit which is disposed in the latch body unit so as to be capable of entering through the entrance of the latch body unit in order to lock or release the door to/from the door frame, and which has a rail section having a retraction-limiting area in which the retraction into the entrance is limited and an retraction-enabling area in which the retraction into the entrance is enabled in the event at least one end portion of the stopper unit is positioned therein; a latch bolt supporting unit coupled to the latch bolt unit so as to support the latch bolt unit; and a motion transmission and lock release unit which is disposed in the latch body unit so as to transmit torque from the outside to the latch bolt unit, and which draws the latch bolt unit into the entrance and applies pressure to the stopper unit such that at least one end portion of the stopper unit is removed from the retraction-limiting area.

Description

Tubular latches with two-stage mounting structure

The present invention relates to a tubular latch having a two-stage indentation structure, and more particularly, the latch bolt inclined surface is pushed into the latch module while touching the door frame (jaw) or the wall surface when it is fixed to the inner side of the door to close the door. The present invention relates to a tubular latch having a two-stage projecting structure having a latch bolt (stage lock) and a dead bolt (stage lock depth) simultaneously so that the latch bolt protrudes and locks into the door frame groove when the door is closed.

In general, the tubular latch locking device provided in the door is fixed to the side inside the door, and the latch lever which is connected to the door frame by the rotation of the handle is connected to the door outer lever type or round ball handle and the shaft. It comprises a latch bolt unit for reversing. In this case, the forward movement of the latch bolt unit refers to the movement of the latch bolt unit to protrude out of the door, and the backward movement of the latch bolt unit refers to the movement of the latch bolt unit to the inside of the door.

The latch bolt unit is formed to be inclined to the curved surface round part of the front end, even if the door is closed without the lever operation in the advanced state, the inclined surface is in contact with the threshold or wall surface, it is possible to close the natural door.

On the other hand, when the door is provided with a door lock device comprising a latch bolt unit and a door lever as described above, the latch frame insertion groove into which the latch bolt unit can be inserted is formed in the door frame or wall.

Due to this structure, when the door is closed, the latch bolt unit is inserted into the latch bolt insertion groove, even if the door is closed without turning the lever, as described above, the latch bolt unit is naturally backed up by the door frame or wall. And, when it comes to the position of the bolt insertion groove formed in the door frame or the wall surface, by the elasticity of the built-in spring or the like, it is further advanced to the outside to maintain the closed state of the door.

On the other hand, if the locking device is operated while the door is closed in this way, the door cannot be opened by turning the lever from the outside. At this time, in order to release the lock, a lock release operation may be performed inside the door or a lock state may be released with a key outside the door.

However, due to the existence of the inclined surface on the latch bolt unit as described above, it is possible to forcibly insert the plastic card or other member from the outside into the door gap and forcibly retract the latch bolt unit, thereby forcing the locked state by the external intruder. Can be released.

In addition, a dead bolt or the like is additionally provided to prevent the retraction of the latch bolt unit in order to prevent the door from being opened, but the configuration thereof is complicated and the original function is caused by the gap between the door and the frame. There is a problem of failing to exert safety vulnerabilities.

[Patent Document 1] Republic of Korea Patent No. 10-0446255

Therefore, the technical problem to be achieved by the present invention is to insert a thin member into the door gap to prevent the reverse movement of the latch bolt unit, and to allow the latch bolt unit to perform two functions, latch bolt and dead bolt, to open the door The operation of the latch bolt and the dead bolt is switched only by the closing mechanical operation, thereby providing a tubular latch having a two-stage mounting structure that provides convenient locking and unlocking functions.

According to an aspect of the invention, the lever is coupled to the door lock body is installed on the indoor side and the outdoor side of the door; And a door latch module disposed between the pair of door lock bodies, the door latch module being installed on the door to lock and unlock the door to the door frame, wherein the door latch module is in communication with an accommodation space and the accommodation space. A latch body unit provided with an entrance; A stopper unit mounted to the latch body unit; Is installed in the latch body unit to be accessible through the entrance and exit of the latch body unit to lock and unlock the door frame, when at least one end of the stopper unit is located, the entry into the entrance is limited A latch bolt unit including a rail limiting area and a rail allowance area for allowing an entry into the entrance and exit; A latch bolt support unit coupled to the latch bolt unit to support the latch bolt unit; And a latch body unit installed in the latch body unit to transmit an external rotational force to the latch bolt unit to draw the latch bolt unit into the doorway, and to press the stopper unit such that at least one end of the stopper unit is separated from the pull-out area. It is possible to provide a tubular latch having a two-stage landing structure including an exercise transmission and an unlocking unit.

The latch bolt unit, the latch bolt body; A latching latch body provided with the latch bolt body and being pulled into contact with the exercise transmission and unlocking unit when the latch bolt body is inserted into the doorway; And a latch bolt main body, and a latching jaw that presses the exercise transmission and unlocking unit when the latch bolt main body is inserted into the doorway.

The rail unit may be provided on a wall portion opposite to the wall portion of the latch bolt main body of the latch bolt body.

The rail unit may include: a primary evacuation region portion that allows one end of the stopper unit to be guided and supported by the retraction restriction region when the door is closed in an open state; And when the door is opened in a closed state, it is possible to provide a secondary escape area portion so that one end of the stopper unit is guided and supported by the retraction allowance area.

When the latch bolt body protrudes through the doorway, the one end portion of the stopper unit is supported in both directions so as to limit the further movement of the latch bolt body and the movement in the opposite direction of the protrusion. A limiting jaw may be provided.

When the latch bolt body protrudes through the doorway, one end of the stopper unit is supported in one direction in the retraction allowance area to limit further protrusion of the latch bolt body but allow movement in the opposite direction of the protrusion. The protrusion limiting jaw may be provided.

When the door is opened in the closed state, a primary escape prevention part may be provided to limit the movement of one end of the stopper unit toward the primary escape area and guide the retractable area along the secondary escape area.

The primary escape prevention part may be a comb-shaped fixed prevention jaw provided to limit the movement of one end of the stopper unit toward the primary escape area in a boundary area between the primary escape area and the secondary escape area. .

The primary escape prevention part may be a rotation prevention jaw provided to be elastically rotatable in the primary escape area to limit movement of one end of the stopper unit toward the primary escape area.

The latch bolt body is arranged to be slidably movable in the receiving space of the latch body unit, the slide projection is limited to the movement by the inner wall portion of the latch body unit, and the elastic support groove is coupled to the latch bolt support unit is provided Latch moving body; And a latch insert detachably coupled to the latch moving body and having an inclined surface in contact with the door frame to facilitate movement.

The latch bolt support unit may support the latch bolt unit in an elastically biased state toward the doorway, and the latch bolt support unit may include: a latch coil spring supported by the elastic support groove; And a spring holder having a support inserted into the coil coil spring for latching, and a fixing ring portion connected to the support and coupled to the latch body unit.

The stopper unit may include a stopper body provided with a rotation hole to be rotatably installed in the latch body unit; The rail unit is moved in correspondence with the rail unit of the latch bolt unit, and is spaced apart from the rotation hole to rotate the stopper body, and the retraction restriction area or the retraction allowance area when the latch bolt body protrudes. A rail catching protrusion provided at one end of the stopper body to be located at; A rotation locking protrusion disposed on the other end of the stopper body so as to correspond to the exercise transmission and unlocking unit and receive a rotational force for rotating the stopper body; And a torsion spring coupled to the stopper body to support the stopper body in a direction opposite to the motion transfer and unlocking unit.

The latch body unit is provided with an interlocking hole for receiving an external rotational force, and the exercise transmission and unlocking unit is rotatably installed in the latch body unit to receive the rotational force input through the interlocking hole and the stopper. A latch cam for rotating the unit; And rotatably disposed adjacent to the latch cam and rotatably installed in the latch body unit, one end of the latch cam being in contact with the latch cam, and the other end of the latch cam being selectively contacted with the pulling jaw and the pushing jaw. It may include a latch arm disposed between the pull engaging jaw and the push engaging jaw.

The latch cam may include: a rotation input unit in which an input hole communicating with the linking hole is formed to receive a rotational force input through the linking hole; A rotation input protrusion spaced apart from the rotation input part to be in contact with the latch arm; A rotation input arm connecting the rotation input unit and the rotation input protrusion; And a stopper engaging jaw provided in the rotation input unit to rotate the stopper unit.

The latch arm may include a first arm that is in contact with the rotation input protrusion and receives a rotation force; A second arm forming a boomerang shape with the first arm, the second arm being disposed between the pulling stopper and the rolling stopper to allow selective contact with the pulling stopper and the rolling stopper; And an arm rotation shaft provided between the first arm and the second arm to be rotatably coupled to the latch body unit.

The rotation input unit may include a plurality of rotation input jaws provided in the inner wall portion forming the input hole to receive the rotational force in one direction through the interlocking hole, and an idle section may be provided between the plurality of rotation input jaws. Can be.

The lever of the door lock body may be connected to a rotation input bar coupled to the latch cam through the linkage hole.

The latch body unit may include a latch fixing plate provided with the entrance and coupled to the door; A latch accommodating body connected to the latch fixing plate and provided with a slide prevention jaw to engage the accommodating space and the slide protrusion; And a latch cover detachably coupled to the latch receiving body to open and close the receiving space of the latch receiving body and having a latch shaft portion inserted into the fixing ring.

According to one aspect of the present invention, when the door is closed, the reverse of the latch bolt unit is blocked by the stopper unit supporting the rail part by one end, thereby preventing the latch bolt unit from forcibly retracting by inserting a thin member into the door gap. , The latch bolt unit performs the two functions of the latch bolt and the dead bolt, and the operation of the latch bolt and the dead bolt is switched only by the mechanical action of opening and closing the door, thus providing a convenient and safer locking and unlocking function. can do.

Further, according to one aspect of the present invention, the latch bolt unit is pulled in so that the door is opened even with a small rotation of the lever, the amount of protrusion of the latch bolt unit to the door frame can be increased to maintain a more secure locked state.

In addition, according to an aspect of the present invention, by placing the idle section in the latch cam to integrate it to improve the security and convenience, and by simplifying the structure of the latch bolt module it is possible to increase the productivity and reduce the cost.

In addition, according to an aspect of the present invention, it is possible to apply not only to the indoor door, but also to the entrance door that must have high security, and lock and unlock only by the mechanical handle operation of opening and closing the door, so that power consumption only during authentication It can be designed to reduce battery consumption and can be easily installed on various types of doors that are not easy to install digital door locks.

1 is a perspective view of a tubular latch door having a two-stage mounting structure according to an embodiment of the present invention.

2 is an exploded view of a tubular latch having a two-stage mounting structure according to an embodiment of the present invention.

3 is a front view illustrating the inside of the door latch module of FIG. 2.

4 is a rear view of FIG. 3.

5 is an exploded view of the door latch module of FIG. 2.

6 is a front view of the latch bolt unit of FIG. 2.

FIG. 7 is a front view in which a rotation preventing jaw is installed in the latch bolt unit of FIG. 2.

FIG. 8 is an exploded view of the latch bolt unit of FIG. 7.

9 is a perspective view of the latch cam of FIG. 2.

FIG. 10 is a first state diagram illustrating a state when a door of a tubular latch having a two-stage mounting structure according to an embodiment of the present invention is opened.

FIG. 11 is a second state diagram illustrating a state when a lever of a tubular latch having a two-stage mounting structure according to an embodiment of the present invention is operated to open a door. FIG.

12 is a third state diagram illustrating a state in which a lever of a tubular latch having a two-stage mounting structure according to an embodiment of the present invention is opened when a door is opened.

FIG. 13 is a fourth state diagram illustrating a state when a door of a tubular latch having a two-stage mounting structure according to an embodiment of the present invention is closed.

FIG. 14 is a fifth state diagram illustrating a state when a door of a tubular latch having a two-stage mounting structure according to an embodiment of the present invention is closed.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a perspective view of a tubular latch having a two-stage mounting structure according to an embodiment of the present invention installed in a door, and FIG. 2 is a tubular latch having a two-stage mounting structure according to an embodiment of the present invention. 3 is an exploded view, FIG. 3 is a front view illustrating the inside of the door latch module of FIG. 2, and FIG. 4 is a rear view of FIG. 3.

As shown in Figures 1 to 4, the tubular latch having a two-stage projecting structure according to an embodiment of the present invention, the lever 102 is rotatably coupled and the indoor side and the outdoor side of the door 103 Between the pair of door lock bodies 100 coupled to the pair, the rotary connection unit 105 coupled to the pair of door lock bodies 100 so as to be rotated by the lever 102, and the pair of door lock bodies 100. Is disposed, the door latch module 110 is installed on the side wall portion of the door 103 to lock and unlock the door 103 to the door frame (not shown) receives a rotational force by the rotation connection unit 105 do.

The pair of door lock bodies 100 may be operated by an authentication unit (not shown), a digital number key, and a mechanical key to input a digital number key to block or unlock the door. And a locking and unlocking unit (not shown).

As shown in FIG. 2, the door latch module 110 is installed in a pair of door lock bodies 100 to lock the door 103 to a door frame (not shown), and conversely, a lever 102, a key, and an authentication. The door 103 may be unlocked from the door frame (not shown) by the unit or the like.

The overall configuration of the door latch module 110 according to the present embodiment is shown in FIGS. 3 and 4.

1 to 4, the door latch module 110 is provided with an accommodation space 112, an entrance 113 connected to the accommodation space 112, and locks and unlocks the door 103. And a latch body unit 111 provided with an interlocking hole 114 so that a rotation force associated with the receiving space is input into the accommodation space 112, and a stopper unit 170 installed to move in the accommodation space 112.

In addition, the door latch module 110 is elastically installed in the accommodation space 112 to protrude and retract through the doorway 113 of the latch body unit 111 to lock and unlock the door 103 to the door frame, A latch bolt unit 115 having a rail portion 120 provided with an entry restriction region 121 for restricting the entry and an entry allowance region 122 for allowing the entry; and a latch coupled to the latch bolt unit 115 for latching. It includes a latch bolt support unit 160 for supporting the bolt unit (115).

At this time, one end of the stopper unit 170 is selectively positioned in any one of the entry limit area 121 and the entry allowance area 122 of the rail unit 120 in the protruding state of the latch bolt unit 115 to open and close the door 113. Optionally enable the entry restriction and citation allowance of the latch bolt unit 115 to the side.

In addition, the door latch module 110 presses the stopper unit 170 to move the rail unit 120 when the door 103 is opened by the lever 102, and on the contrary, the latch bolt unit when the door 103 is closed. It includes the exercise transmission and unlocking unit 180 receives the pressing force of the stopper unit 170 moving by the (115).

At this time, the movement transmission and unlocking unit 180 is installed in the accommodation space 112 of the latch body unit 111 and the latch bolt unit (to transmit the rotational force input through the interlock hole 114 to the latch bolt unit 115 ( The stopper unit 170 is contacted with the stopper unit 170 so that one end of the stopper unit 170 is separated from the pull-out limit region 121 of the rail unit 120 to release the restriction on the protruding state of the latch bolt unit 115. Will be pressed.

The digital door lock device according to the present invention configured as described above is provided with an entry restriction area 121 for limiting the entry and an entry allowance area 122 for allowing the entry in the state where one end is supported and protruded on the stopper unit 170. Corresponding to the rail 120, the latch bolt unit 115 locks the door 103 to the door frame with only the latch bolt unit 115, and a latch bolt function for releasing the lock is inserted into the door frame to completely lock the door. Can perform dead bolt function that maintains state.

5 is an exploded view of the door latch module of FIG. 2, FIG. 6 is a front view of the latch bolt unit of FIG. 2, FIG. 7 is a front view in which a rotation prevention jaw is installed on the latch bolt unit of FIG. 2, and FIG. 8 is a latch of FIG. 7. It is an exploded view of a bolt unit, and FIG. 9 is a perspective view of the latch cam of FIG.

Hereinafter, a detailed configuration of a door latch module 110 installed between a pair of door lock bodies 100 to perform a latch bolt function and a dead bolt function of a digital door lock device according to an embodiment of the present invention will be described in detail. .

First, referring to FIGS. 3 to 6, the door latch module 110 according to the present exemplary embodiment is movable in the accommodation space 112 of the latch body unit 111 so as to protrude and retract through the doorway 113. The latch bolt body 125 is provided to the rail portion 120 is installed to be installed, and the latch bolt body 125 is provided on the opposite side wall portion of the latch bolt body 125 is provided, the latch bolt body 125 is the entrance ( 113, a latching bolt body 125 is provided to be spaced apart from the pulling jaw 126 and the pulling locking jaw 126 is in contact with the exercise transmission and release unit 180, the latch bolt body 125 is provided, When the 125 is drawn into the doorway 113, it includes a push jaw 127 for pressing the exercise transmission and unlocking unit 180.

Referring to FIG. 8 in which the latch bolt unit 115 of FIG. 5 is enlarged, the pulling locking jaw 126 according to the present embodiment has an inclined surface, and thus is pulled by the latch arm 190 to be described later. It can be conveyed while providing a sufficient stroke even for the small rotational force of the latch arm 190. That is, when the left end of the latch arm 190 of FIG. 5 and the latching jaw 126 shown in FIGS. 5 and 8 to move the latch bolt unit 115, the latch bolt unit 115 is relatively The load is large and may not move easily. However, according to the present exemplary embodiment, since the left end of the latch arm 190 is pulled along the inclined surface of the pulling stopper 126 to pull the pulling stopper 126, the pressing force on the pulling stopper 126 increases. In addition, the latch bolt unit 115 may be moved by a small rotational force on the pulling locking jaw (126).

At this time, the rail portion 120 of the latch bolt main body 125 is the primary escape area for allowing one end of the stopper unit 170 to be guided and supported by the retraction restriction region 121 when the door 103 is closed in the open state. The part 131 and the secondary evacuation area part 132 are provided so that one end of the stopper unit 170 is guided and supported by the retraction allowance area 122 when the door 103 is opened in the closed state. In FIG. 6, the primary escape region 131 and the secondary escape region 132 correspond to areas indicated by hatching around the boundary 133.

In addition, the rail unit 120 is a stopper unit according to the forward and reverse when the latch bolt body 125 is moved forward and reverse backward toward the doorway 113 along the receiving space 112 of the latch body unit 111. A movement section of the latch bolt body 125 is set between the frontmost region 135 and the rearmost region 136 where one end of the 170 is located.

According to the present exemplary embodiment, the rail 120 has a loop shape on the latch bolt body 125, and a path along which the one end of the stopper unit 170 moves by the outer rail wall 138 and the inner rail wall 139 moves. Can provide.

That is, the rail unit 120 is provided in a groove shape between the inner rail wall 139 and the outer rail wall 138 so that one end of the stopper unit 170 can be inserted and moved, and the latch bolt body 125 has an entrance and exit. When drawn in through 113, one end portion of the stopper unit 170 is provided in the primary escape region 131 from the foremost region 135 to the entry restriction region 121 so that the end portion can move to the entry restriction region 121. The first rail 141 and one end of the stopper unit 170 are provided in the secondary escape area 132 from the foremost area 135 to the allowable area 122 so as to move to the allowable area 122. It may include a secondary rail 142.

In addition, in the foremost region 135 of the rail unit 120 according to the present embodiment, one end of the stopper unit 170 may move toward the primary rail 141 rather than the secondary rail 142. This can be arranged. In addition, the secondary rail 142 may be connected to the second inclined section 146 so that one end of the stopper unit 170 may pass through the allowable region 122 and the foremost region 135.

The rail unit 120 according to the present embodiment is provided in the latch bolt body 125 in the shape of a groove in which the section is dug, such as the primary rail 141 and the secondary rail 142, but the right of the present invention The range is not limited and may be provided in other ways, for example in the form of a vehicle rail.

When the latch bolt body 125 protrudes through the doorway 113, the protrusion of the latch bolt body 125 further protrudes and the protrusion of the latch bolt body 125 of the rail unit 120 according to the present embodiment. In order to limit the movement in the opposite direction, the movement limiting stopper 148 may be provided in which the stopper unit 170 is supported in both directions.

In this case, when the one end of the stopper unit 170 is inserted and positioned, the movement limiting locking step 148 limits the forward and backward movement of the latch bolt body 125, and the locking and unlocking unit (not shown) When the rotation of the lever 102 is limited by this, so that the position of one end of the stopper unit 170 is maintained, the latch bolt unit 115 may function as a dead bolt.

On the contrary, when the lever 102 is rotated, the position of one end of the stopper unit 170 moves away from the restrained locking jaw 148 to move to the foremost area 135 of the rail part 120, and then the retraction allowance area ( 122, the latch bolt unit 115 may function as a latch bolt.

That is, when the latch bolt body 125 protrudes through the doorway 113, the latch bolt body 125 further restricts the protrusion of the latch bolt body 125 in the retraction allowance area 122 according to the present embodiment, in the opposite direction of the protrusion. A protrusion limiting jaw 149 in which the stopper unit 170 is supported in one direction may be provided to allow movement.

According to the present embodiment, the protrusion limiting projection 149 is formed in a shape such as “a” so that one end of the stopper unit 170 may be guided to the secondary rail 142. When closed, one end of the stopper unit 170 is guided by the protruding limiting jaw 149 to move along the secondary rail 142 to the foremost area 135 of the rail part 120, and then back to the retraction limit area ( It can be moved so as to be caught on the movement limiting jaw 148 side of 121.

Meanwhile, according to the present exemplary embodiment, when the door 103 is opened in the closed state, the movement of one end of the stopper unit 170 is restricted toward the primary escape area 131 and along the secondary escape area 132. The primary escape preventing part 151 is provided to guide the retraction allowance area 122.

One end of the stopper unit 170 is located at the boundary between the primary escape area 131 and the secondary escape area 132 and the primary escape area 131. It may be a comb-shaped fixed prevention jaw 152 provided to limit the movement of the part.

When the door 103 is opened in the closed state, the latch bolt body 125 is pressed into the door frame and is rapidly moved by the elastic force of the latch bolt support unit 160 described later. In addition, one end of the stopper unit 170-the rail catching protrusion 173 to be described later-is separated from the entry limit region 121 of the primary escape region region 131 to the foremost region 135 of the rail portion 120. After the movement, the latch bolt body 125 may not move toward the primary escape area portion 131 along the first inclined section 145 of the primary rail 141 by the rapid advancement of the primary rail 141. To move over to the comb-shaped fixed prevention jaw 152, the comb-shaped fixed prevention jaw 152 to guide the rail catching projection 173 to the retraction allowance area 122 in the secondary escape area 132. do.

6 and 7, one end of the primary evacuation prevention part 151 according to the present embodiment is installed to be elastically rotatable in the primary escape area 131, and the other end of the primary rail By extending to the foremost boundary region of the 141 and the secondary rail 142, it may be a rotation preventing jaw 153 provided to limit the movement of the stopper unit 170 toward the primary escape region 131.

At this time, the rotation preventing jaw 153 is elastically rotated when it contacts the rail catching protrusion 173 by the sudden movement of the latch bolt body 125, thereby moving the rail catching protrusion 173 toward the primary escape area portion 131. It can be limited and guided to the secondary escape area portion 132 side.

6 and 8, the latch bolt body 125 of the latch bolt unit 115 according to the present embodiment is disposed to be slidably movable in the accommodation space 112 of the latch body unit 111. A portion 120, a pulling locking jaw 126, and a sliding locking jaw 127 are disposed, the slide protrusion 156 of which movement is limited to an inner wall portion of the latch body unit 111, and the latch bolt support unit 160. Latch moving body 155 is provided with a resilient support groove 157 is coupled to and supported), and latch insertion is detachably coupled to the latch moving body 155, the inclined surface is provided to facilitate the movement in contact with the door frame Sieve 159 may be included.

At this time, referring to Figure 5, the latch bolt support unit 160, the latch coil spring is supported in the resilient support groove 157 to support the latch bolt unit 115 in the elastically biased state toward the doorway 113 ( 161 and a fixing ring portion 163 connected to the support 162 and the support 162 inserted into the latch coil spring 161 and positioned in the receiving space 112 of the latch body unit 111. It may include a spring holder 165 having.

According to the present embodiment, the latch bolt support unit 160 supports the latch bolt unit 115 by using a spring force, but the scope of the present invention is not limited thereto. For example, the latch bolt support unit 160 may be a motor and a lead. It may also be possible using an electromagnetic force such as a screw or solenoid.

5 to 7, the stopper unit 170 according to the present embodiment includes a stopper body having a rotation hole 172 provided to be rotatably installed in the accommodation space 112 of the latch body unit 111 ( 171 and the rail part 120 corresponding to the rail part 120 of the latch bolt body 125, but are spaced apart from the rotation hole 172 to rotate the stopper body 171 and the latch bolt body 125. ) And a rail locking protrusion 173 provided at one end of the stopper body 171 to be located in the entry restriction area 121 or the entry allowance area 122 in a protruding state, and the movement transfer and unlocking unit 180. Rotation stopper 174 is disposed in correspondence to the other end of the stopper body 171 to receive a rotational force for rotating the stopper body 171, and the stopper in the opposite direction to the movement transfer and unlocking unit 180 Torsion spring 17 coupled to stopper body 171 to support body 171 5) includes.

When the door 103 is closed, the stopper unit 170 is positioned in the entry restriction area 121 of the rail 120 when the latch bolt main body 125 protrudes through the doorway 113. The main body 125 is supported, and when the door 103 is opened, the rail bolt main body 125 is positioned in the entry allowance area 122 of the rail part 120.

3 to 6, the movement transmission and unlocking unit 180 according to the present embodiment may transmit the rotation movement of the rotation connection unit 105 to the latch bolt unit 115 of the latch body unit 111. It is installed in the accommodation space 112.

The movement transmission and unlocking unit 180 is rotatably installed on the latch body unit 111 to receive the rotational force input through the linkage hole 114 and the latch cam 181 for rotating the stopper unit 170 and It is spaced apart from the latch cam 181 is rotatably installed in the latch body unit 111, one end is disposed to contact the latch cam 181, the other end is pulled jaw 126 and the pushed jaw 127 And a latch arm 190 disposed between the pulling stop 126 and the pushing stop 127 so as to allow selective contact therewith.

The latch cam 181 is spaced apart from the rotation input unit 182 and the rotation input unit 182 which are formed with an input hole 183 communicating with the linking hole 114 to receive the rotational force input through the linking hole 114. And a rotational input protrusion 184 arranged to be in contact with the latch arm 190, a rotational input arm 185 connecting the rotational input unit 182 and the rotational input protrusion 184, and a rotational input unit 182. It may include a stopper engaging jaw 186 for rotating the stopper unit 170.

In addition, the exercise transmission and unlocking unit 180 according to the present embodiment may further include a restoring spring 187 that provides a separate rotational force to the latch cam 181, and the latch cam 181 may include a restoring spring ( 187 may further include a position restoring latching jaw (188) in contact with the support.

The latch cam 181 can be fully rotated and returned to its original position by being supported by the position restoring locking jaw 188 in contact with the restoring spring 187 which provides the return rotation force in the state where the stopper unit 170 is rotated. In this case, the restoring spring 187 may be provided as a spring when the latch cam 181 is rotated, and then provide a restoring force for pressing the latch cam 181 to its original position when the rotation force is removed. The first arm 191 which is in contact with the rotation input protrusion 184 to receive the rotational force and the first arm 191 forms a Vemerang shape, and the pulling stopper 126 and the rolling stopper 127 are formed. The latch body is provided between the second arm 192 and the first arm 191 and the second arm 192 disposed between the pull latch 126 and the push latch 127 to enable selective contact with the latch body. It may include an arm rotation axis 193 rotatably coupled to the unit 111.

The rotation input unit 182 includes a plurality of rotation input jaws 195 and a plurality of rotation input jaws provided on an inner wall part of the input hole 183 to receive a rotation force in one direction through the linkage hole 114. 195 may include an idling section 196 provided.

1 and 5, the latch bolt unit 115, the latch bolt support unit 160, the stopper unit 170, the movement transfer and the unlock unit 180 as described above may include the latch body unit 111. The latch body unit 111 according to the present exemplary embodiment may include a latch fixing plate 201 and a latch fixing plate coupled to the door 103 by having an entrance and exit 113 formed therein. Opening and closing the latch receiving body 200 and the receiving space 112 of the latch receiving body 200, the latch receiving body 202 is provided to be connected to the 201 and the receiving space 112 and the slide projection 156 is provided. It may include a latch cover 203 is detachably coupled to the latch receiving body 200 and provided with a latch shaft portion 204 inserted into the fixing ring 163.

Hereinafter, a detailed operation process of the door lock device according to the present embodiment as described above.

10 is a first state diagram illustrating a state when a door of a tubular latch having a two-stage mounting structure according to an embodiment of the present invention is opened, and FIG. 11 is a two-stage mounting according to an embodiment of the present invention. FIG. 12 is a second state diagram illustrating a state when a lever of a tubular latch having a structure is operated to open a door, and FIG. 12 is a lever of a tubular latch having a two-stage mounting structure according to an embodiment of the present invention. It is a 3rd state diagram which shows the state when a door is opened.

Referring to FIGS. 1 and 10 to 12, first, when the door 103 is opened while locked in the door frame, the lever 102 is rotated so that the rotation connection unit 105 is rotated, and the door latch module 110 is rotated. The rotational force of the rotation connection unit 105 is input to the rotation input unit 182 of the latch cam 181 through the interlock hole 114 of the latch body unit 111 of the latch body unit 111, and the latch cam 181 is rotated clockwise. .

The latch arm 190 in contact with the latch cam 181 and the first arm 191 rotates counterclockwise, and the second arm 192 of the latch arm 190 pulls the latch bolt body 125. The latch bolt body 125 is pressed in contact with the jaw 126, and the latch insert 159 of the latch bolt body 125 is retracted and drawn through the doorway 113.

When the door 103 is rotated about the hinge in the rotated state of the lever 102, the latch insert 159 is supported by the door frame to maintain the inserted state, the support for the door frame is released and at the same time the latch bolt The latch bolt body 125 receives an elastic force by the support unit 160 to protrude outward.

At this time, the rail locking protrusion 173 of the stopper unit 170 is the first inclined section of the rail unit 120 at the movement limiting locking step 148 belonging to the drawback limiting region 121 of the primary escape region 131. When the latch insert 159 protrudes while moving along the 145 and disposed in the foremost region 135, the protruding limiting jaw 149 belonging to the retractable region 122 of the secondary escape region 132. Is moved to).

In addition, when the latch bolt main body 125 protrudes by the latch bolt support unit 160, the stopper unit 170 is rotated in the clockwise direction by the torsion spring 175, and the stopping protrusion of the stopper unit 170 is rotated. 174 and the stopper engaging jaw 186 of the latch cam 181 are in contact with each other, so that the latch cam 181 is rotated counterclockwise to return to the original position.

FIG. 13 is a fourth state diagram illustrating a state when a door of a tubular latch having a two-stage wedge structure according to an embodiment of the present invention is closed, and FIG. 14 is a two-stage wedge structure according to an embodiment of the present invention. FIG. 5 is a fifth state diagram illustrating a state when the door of the tubular latch having a closed position is closed.

1 and 12 to 14, when the door 103 is closed in the open state, the inclined surface of the latch insert 159 of the latch bolt unit 115 is moved along the door frame, and the latch insert ( 159 enters the entrance and exit 113, and the latch bolt body 125 is pressed in the entry direction.

At this time, the rail locking protrusion 173 of the stopper unit 170 moves away from the allowable region 122 and moves to the foremost region 135 of the rail unit 120, and the latch bolt body 125 supports the latch bolt. When the latch insert 159 is advanced by the unit 160 and is inserted into the door frame, it is moved to the retraction restriction area 121 of the primary escape area 131 again.

When the door 103 is closed, the latch bolt body 125 is located in the entry limit area 121 of the primary escape area 131, so that the latch bolt body (unless the lever 102 is rotated) The entry of 125) is blocked so that the door cannot be opened.

That is, when the authentication number is entered into the authentication button of the door lock main body 100 or the rotation of the rotation connection unit 105 is blocked by the key, the door 103 can be kept locked in the door frame, and the door frame from the outside Even when a card or other tool is inserted into the gap between the doors 103 to apply a pressing force to pull in the latch insert 159, the rail catching protrusion 173 of the stopper unit 170 is located in the limit of entry area 121. Since the state of the latch bolt body 125 is blocked, the lock of the door 103 can be prevented from being forcibly released from the outside.

In addition, when the latch bolt body 125 is retracted, the latch arm 190 is rotated in the counterclockwise direction by the second arm 192 being pushed by the catching jaw 127, and the latch cam 181 is rotated in the second direction. It is pressed by the arm 192 to rotate in a clockwise direction, there is no pressing force on the rotary connection unit 105 by the idling section 196 of the rotation input unit 182 belonging to the latch cam 181, the rotary connection unit ( 105 is not rotated. That is, the lever 102 connected with the rotary connection unit 105 does not rotate when the door 103 is closed.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

Claims

A pair of door lock bodies coupled to the lever and installed on the indoor side and the outdoor side of the door; And

A door latch module disposed between the pair of door lock bodies, the door latch module being installed on the door to lock and unlock the door;

The door latch module,

A latch body unit having an accommodation space and an entrance and exit communicating with the accommodation space;

A stopper unit mounted to the latch body unit;

Is installed in the latch body unit to be accessible through the entrance and exit of the latch body unit to lock and unlock the door frame, when at least one end of the stopper unit is located, the entry into the entrance is limited A latch bolt unit including a rail limiting area and a rail allowance area for allowing an entry into the entrance and exit;

A latch bolt support unit coupled to the latch bolt unit to support the latch bolt unit; And

A movement installed in the latch body unit to transfer an external rotational force to the latch bolt unit to draw the latch bolt unit into the entrance and to press the stopper unit such that at least one end of the stopper unit is separated from the pull-out area. A tubular latch having a two-stage mounting structure comprising a transfer and unlock unit.
The method of claim 1,

The latch bolt unit,

Latch bolt body;

A latching latch body provided with the latch bolt body and being pulled into contact with the exercise transmission and unlocking unit when the latch bolt body is inserted into the doorway; And

The latch bolt main body is provided, the tubular latch having a two-stage structure, characterized in that it comprises a sliding locking step for pressing the movement transfer and unlocking unit when the latch bolt body is introduced into the doorway.
The method of claim 2,

The rail unit is a tubular latch having a two-stage mounting structure, characterized in that provided on the wall side opposite the wall portion is provided with the latching jaw of the latch bolt body.
The method of claim 3,

The rail unit,

A primary escaping area portion for allowing one end of the stopper unit to be guided and supported by the pull-out area when the door is closed in an open state; And

A tubular latch having a two-stage retracting structure, characterized in that when the door is opened in a closed state, a second escape area is provided so that one end of the stopper unit is guided to and supported by the retraction allowance area.
The method of claim 4, wherein

When the latch bolt body protrudes through the doorway, the one end portion of the stopper unit is supported in both directions so as to limit the further movement of the latch bolt body and the movement in the opposite direction of the protrusion. Tubular latch having a two-stage mounting structure, characterized in that the locking step is provided.
The method of claim 4, wherein

The latch bolt body protrudes through the doorway in the retractable area.

In this case, the latch bolt body further restricts further protrusion in the opposite direction of the protrusion.

Protruding end of the stopper unit supported in one direction to allow movement

Tubular latch having a two-stage mounting structure, characterized in that one engaging jaw is provided.
The method of claim 4, wherein

When the door is opened in the closed state, the primary escape prevention portion for limiting the movement of one end of the stopper unit toward the primary escape area and guides to the retraction allowance area along the secondary escape area is provided. Tubular latch having a two-stage mounting structure.
The method of claim 7, wherein

The primary escape prevention part is a comb-tooth fixed stopper provided to limit movement of one end of the stopper unit toward the primary escape area in a boundary area between the primary escape area and the secondary escape area. A tubular latch having a two-stage mounting structure.
The method of claim 7, wherein

The first evacuation prevention part is a two-stage turning prevention jaw provided to be elastically rotatable in the primary escape area and provided to limit the movement of one end of the stopper unit toward the primary escape area. Tubular latch with structure.
The method of claim 2,

The latch bolt body,

A latch moving body disposed in the accommodation space of the latch body unit to be slidably movable, the slide protrusion being limited in movement by an inner wall of the latch body unit, and an elastic support groove to which the latch bolt support unit is coupled; And

And a latch insert coupled to the latch moving body, the latch insert being provided with an inclined surface in contact with the door frame to facilitate movement.
The method of claim 10,

The latch bolt support unit supports the latch bolt unit in an elastically biased state toward the doorway,

The latch bolt support unit,

A latch coil spring supported by the resilient support groove; And

And a spring holder having a support inserted into the coil coil spring for latching, and a fixing ring connected to the support and coupled to the latch body unit.
The method of claim 2,

The stopper unit,

A stopper body provided with a rotation hole to be rotatably installed in the latch body unit;

The rail unit is moved in correspondence with the rail unit of the latch bolt unit, and is spaced apart from the rotation hole to rotate the stopper body, and the retraction restriction area or the retraction allowance area when the latch bolt body protrudes. A rail catching protrusion provided at one end of the stopper body to be located at;

A rotation catching protrusion disposed on the other end of the stopper body so as to correspond to the exercise transmission and unlocking unit and receive a rotational force for rotating the stopper body; And

And a torsion spring coupled to the stopper body to support the stopper body in a direction opposite to the motion transfer and unlocking unit.
The method of claim 2,

The latch body unit is provided with a linkage hole for receiving an external rotational force,

The exercise transmission and unlocking unit,

A latch cam rotatably installed on the latch body unit to receive the rotational force input through the linkage hole to rotate the stopper unit; And

It is disposed adjacent to the latch cam is rotatably installed in the latch body unit, one end is disposed to contact the latch cam, the other end is to allow selective contact with the pulling and jaw locking jaw The tubular latch having a two-stage mounting structure, characterized in that it comprises a latch arm disposed between the pull engaging jaw and the push engaging jaw.
The method of claim 13,

The latch cam,

A rotation input unit having an input hole communicating with the linking hole to receive the rotational force input through the linking hole;

A rotation input protrusion spaced apart from the rotation input part to be in contact with the latch arm;

A rotation input arm connecting the rotation input unit and the rotation input protrusion; And a stopper engaging jaw provided in the rotation input unit to rotate the stopper unit.
The method of claim 14,

The exercise transmission and unlocking unit further includes a restoring spring that provides rotational force to the latch cam,

The latch cam, tubular latch having a two-stage mounting structure, characterized in that it further comprises a position restoring jaw supported by the restoring spring.
The method of claim 14,

The latch arm,

A first arm in contact with the rotation input protrusion to receive rotation force;

A second arm forming a boomerang shape with the first arm, the second arm being disposed between the pulling stopper and the rolling stopper to allow selective contact with the pulling stopper and the rolling stopper; And

A tubular latch having a two-stage mounting structure, characterized in that it comprises an arm rotating shaft provided between the first arm and the second arm to be rotatably coupled to the latch body unit.
The method of claim 14,

The rotation input unit may include a plurality of rotation input jaws provided in the inner wall portion forming the input hole to receive the rotational force in one direction through the linkage hole, and an idle section is provided between the plurality of rotation input jaws. Tubular latch having a two-stage mounting structure, characterized in that.
The method of claim 13,

The lever of the door lock body tubular latch having a two-stage structure, characterized in that connected to the rotation input bar coupled to the latch cam through the interlock hole.
The method of claim 11,

The latch body unit,

A latch fixing plate provided with the door and coupled to the door;

A latch accommodating body connected to the latch fixing plate and provided with a slide prevention jaw to engage the accommodating space and the slide protrusion; And

Tubular having a two-stage structure, characterized in that it comprises a latch cover detachably coupled to the latch receiving body to open and close the receiving space of the latch receiving body, the latch shaft is inserted into the fixing ring portion is provided. Type latch.