KR100414361B1 - Door Lock System - Google Patents

Abstract

The present invention is installed in a large door to prevent the malfunction of the latch portion by applying a reliable transmission force from the handle portion to the latch portion with a simple structure when locking / unlocking the door, thereby dealing with the malfunction of the door that is suddenly opened. There is an advantage that can prevent safety accidents that occur to the elderly who do not, and also relates to a door lock device that can improve the workability and productability.

The present invention is a door lock device for opening the door by operating the handle portion disposed opposite to the inside / outside of the door to unlock the latch portion of the door, the door lock device for placing up and down between the inner / outer handle portion of the door One side protrudes into the through hole of the latch housing and one side protrudes into the through hole of the latch housing for locking / unlocking the door, and the other side rotates according to the opening / closing of the door inside the housing. The latch part is elastically supported to be slidable, and when the door is opened, the latch part is released according to the turning of the handle part to set the latch to a rotatable / slidable state, and the latch is fixed when the door is closed. And a latch control unit for setting to a slidable state.

Description

Door Lock System {Door Lock System}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock device, which is installed on a large door and has a simple structure for applying a reliable transmission force from a handle part to a latch part when the door is locked and unlocked. There is an advantage to prevent the malfunction of the negative, thereby preventing the safety accidents that occur to the elderly who can not quickly cope with the malfunction of the door that is suddenly opened. In addition, the present invention relates to a door lock device capable of improving workability and marketability.

In general, door locks applied to large doors, such as heavy metal front doors or thick glass doors, are push-pull type doors that open the door by pulling or pushing the handle from the inside or outside of the door. Lock is applied.

Such a conventional push-pull door lock is a slider according to the rotation of the handle by pulling or pushing a handle disposed inside / outside the door as in Korean Utility Model Publication No. 146379 (Registration Date: Feb. 26, 1999). To move the locking block stored in the latch housing to release the latch, and then switch to a state in which the latch can pivot around the pin to maintain the unlocking state so that the door can be opened. have.

However, in the related art, a link is disposed inside the small latch housing and connected to the latch control unit for driving and releasing the latch to drive and release the latch.

Therefore, when turning the handle to open or close the door, the long-term use of the handle, the slider and the lever because the transfer direction of the force to rotate the lever to move the lever horizontally in accordance with the turning of the handle in the three stages of the handle It is difficult to transmit the exact force due to the turning of the wire, and the link of the latch control part or the connection state between the small parts is not strong, which causes the latch to malfunction, which causes the door to be operated by the handle. There is a problem that does not open.

In addition, when the door is closed, the latch supported by the latch control unit having a weak connection structure opens the door while the latch is released by the wind even if the user does not operate the handle directly. There is a problem that causes a safety accident that does not quickly avoid the door that is suddenly open when injured.

Therefore, the present invention is to solve the conventional problems as described above, the object of which is installed in a large door is a simple structure when locking and unlocking (unlocking) the door from the handle portion reliable transmission force It is applied to the latch part to prevent the malfunction of the latch part, thereby preventing the safety accidents that occur to the elderly who cannot respond quickly to the malfunction of the door that is suddenly opened, and provide a door lock device that can improve workability and merchandise. It is.

1 is an exploded perspective view showing a door lock device according to the present invention,

2a to 2e is a front view showing the operation sequence of the door lock device according to the present invention,

3A is a partially enlarged cross-sectional view as viewed in the direction A shown in FIG. 2A,

3B is an enlarged cross-sectional view of a part viewed from the direction B shown in FIG. 2C,

3C is an enlarged cross-sectional view of a part viewed from the direction C shown in FIG. 2E,

4 is a perspective view showing a state in which the door lock device according to the present invention is positioned between the fixed housing of the handle portion;

5A and 5B are schematic cross-sectional views illustrating a state in which the door lock device according to the present invention is locked and unlocked according to the operation of the handle part;

6 is a schematic perspective view showing a door frame into which a latch of the door lock device according to the present invention is inserted.

* Description of Codes for Main Parts in Drawings *

100: latch housing 110: housing portion

114a-114c: Hinge shaft 113a, 113b; 153a, 153b: Push bar through hole

130: extension portion 131: latch through hole

150: cover 200: latch control unit

210: first link 211: first moving plate

217: first anti-rotation protrusion 219,239: moving plate return spring

230: second link 231: second moving plate

250: third link 257: second anti-rotation protrusion

300: latch portion 310: latch guide

330: return spring 350: rotation guide

370: latch 373a, 373b: insertion groove

375a, 375b: engaging jaw 400: handle portion

410a, 410b: handle 430a, 430b: connecting rod

450a, 450b: fixed housing 431,451: push bar

459: pushbar return spring

In order to achieve the above object, the present invention is a door lock device for opening the door by operating the handle portion disposed opposite to the inside / outside of the door to unlock the latch portion of the door, the inside / inside of the door It is disposed up and down between the outer handle portion, one side protrudes through the latch housing with a through hole formed in the open end of the door, and one side protrudes through the through hole of the latch housing for locking / unlocking the door and the other side inside the housing. The latch part is elastically supported to be pivotable / slidable according to the opening / closing of the latch, and when the door is opened, the latch part is released according to the turning of the handle part to set the latch to the pivotable / slidable state. When closed, the latch is configured to control the latch to set the sliding state Provide a door lock device.

In this case, the handle part is disposed to face each other up and down on the inner and outer surfaces of the door open end, and the plurality of inner and outer fixed housings positioned at the same level as the latch housing, and hinged to be able to pivot in one direction inside the fixed housing. A fixed push bar extending and having a plurality of inner / outer connecting rods, the other ends of which are bent in the direction of the open end of the door, and inner / outer handles having upper and lower peripheral surfaces coupled to the other ends of the inner / outer connecting rods, When removing the force exerted on the handle, it consists of a return spring coupled to the stationary housing to pivot the handle in place.

In addition, the latch control unit is resiliently installed to be returnable according to the rotation of the push bar and hinged to the latch housing, and hinged to the housing, respectively, hinged movement of the first and second moving plate And first, second and third links extending perpendicularly to the first and second moving plates to control the rotation of the latch portion.

In addition, the latch unit has a latch guide, one side of which is open to the through hole of the latch housing and fixed to the latch housing, and a latch for locking / unlocking the door by rotating or slidingly moving along the inside of the latch guide under the control of the plurality of linkers. And a rotation guide detachably inserted at the rear end of the latch to guide rotation / sliding of the latch at the time of opening / closing the door and elastically installed at the latch guide.

On the other hand, the present invention is disposed up and down between the inner and outer handle portion of the door, one side of the latch housing has a through hole formed in the open end of the door, and one side of the through hole of the latch housing for locking / unlocking the door A latch part that protrudes and is elastically supported to allow the other side to rotate / slide in accordance with the opening / closing of the door in the housing, and when the door is opened, the latch is rotated by releasing the latched state according to the turning of the handle part. The latch control unit is set to a possible state, and when the door is closed, the latch control unit is configured to fix the latch to a sliding state, and when the door is opened, the latch control unit is pivoted to release the latch state by turning the latch control unit. In order to apply the force, the end of the connection rod is formed in accordance with the rotation of the handle is elastic in the fixed housing It is also possible to be composed of a handle having a push bar hinged.

Accordingly, in the present invention described above, a plurality of links interlocked with the latch control unit are installed to have a rigid and simple structure so as to minimize the load applied to the latch unit from the handle unit when the door is opened / closed. It is possible to improve the properties and merchandise, and also to prevent the malfunction of the latch unit interlocked with the latch control unit, it is possible to prevent the door from being opened by the wind, thereby preventing the safety accidents of children.

(Example)

When described in detail with reference to the accompanying drawings showing a door lock device according to the present invention as follows.

1 is an exploded perspective view showing a door lock device according to the present invention, Figures 2a to 2e is a front view showing the operation sequence of the door lock device according to the invention, Figure 3a is a part viewed in the direction A shown in Figure 2a 3B is a partially enlarged cross-sectional view seen from the direction B shown in FIG. 2C, FIG. 3C is a partially enlarged cross-sectional view seen from the direction C shown in FIG. 2E, and FIG. 4 is a door lock device according to the present invention between the fixed housing of the handle portion. 5A and 5B are schematic cross-sectional views illustrating the operation of a handle part of a door lock device according to the present invention, and FIG. 6 is a schematic perspective view showing a door frame into which a latch of the door lock device according to the present invention is inserted. to be.

First, the door lock device 10 according to the present invention is disposed between the upper and lower fixed housings 450a and 450b of the handle part 20 disposed opposite to the inside / outside of the door (not shown) as shown in FIG. 4. As shown in FIG. 1, one side of the latch housing 100 has a through hole formed at an open end surface of the door, and one side protrudes through the through hole of the latch housing 450a and 450b, and the other side is elastically supported to allow sliding rotation inside the housing. The latch unit 300 and the latch control unit 200 for controlling the sliding rotation of the latch unit in accordance with the operation of the handle unit 20.

The latch housing 110 includes an accommodating part 110 having an accommodating space therein and an extension 130 having a latch through hole 131 at one end of the accommodating part at a right angle with respect to the longitudinal direction of the accommodating part 110. It is formed extending in the direction, made of a cover 150 detachably coupled to the receiving portion (110).

The accommodating part 110 has through-holes 113a and 113b formed on one side of the rear center portion at a predetermined interval up and down, respectively, and a plurality of hinge shafts 114a to 114c protrude forward.

In addition, fixing projections 111a-111c are formed at the open ends of the accommodating part 110, respectively, and guide fixing holes 117a-117c are formed in the front of the rear side, and the mounting protrusions are disposed outside the guide fixing holes 117a, 117b, respectively. 116a and 116b are formed, and the cover 130 is formed with cover fixing holes 112a and 112b above and below the latch through holes 131a and 131b.

On the other hand, the cover 150 is made of an area corresponding to the outer end of the accommodating portion, and corresponding to the fixing protrusions 111a-111c of the accommodating portion to be detachably fixed to the accommodating portion and the extension portion. Fixing grooves 151a to 151c into which the fixing protrusions are inserted, respectively, are formed, and cover fixing protrusions 152a and 152b are respectively inserted to correspond to the cover fixing holes 112a and 112b of the extension part.

In this case, when the cover 150 is fixed to the storage unit behind one surface, the latch through holes 153a and 153b are formed at positions corresponding to the latch through holes 131a and 131b of the storage unit, respectively.

In this case, the cover 150 forms coupling holes 155a and 155b corresponding to the coupling grooves 120a and 120b formed in the first and third hinge shafts 114a and 114b to form bolts (not shown). The coupling holes 155a and 155b are coupled to the coupling grooves 120a and 120b to be detachably fixed to the storage unit 110.

In addition, as shown in FIG. 1, the latch control unit 200 has a first coupling hole 215 formed to hinge the center of the first hinge shaft 114a of the housing, and the first moving plate 211 is perpendicular to the rear end. A first link 210 extending in a direction and having a first anti-rotation protrusion 217 protruding upward from the other end and having a first hinge protrusion 213 formed at the center thereof, and a second hinge shaft of the housing part. The second link hole 235 is formed so that one side is hinged to the 114b, and the second link hole 235 is formed to extend in the direction perpendicular to the extension portion extending from the center to the lower side and the second hinge protrusion 233 is formed on the other side. 230 and a third coupling hole 255 which is hinged to the third hinge shaft 114c of the receiving unit, and is hinged to the first and second hinge protrusions 211 and 213 at lower and one sides thereof, respectively. At the other end, each of the third links 250 includes a second anti-rotation protrusion 257 protruding downward.

At this time, the first and second anti-rotation protrusions 217 and 257 are mounted by the mounting protrusions 116a and 116b of the latch housing so as to perform correct operation when turning.

2A to 2E, the first moving plate 211 is elastically supported by the first moving plate return spring 219 coupled to the first hinge shaft 114a, and the second moving plate 231 is It is elastically supported by the second moving plate return spring 239 coupled to the third hinge shaft 114c.

On the other hand, the latch unit 300 has an insertion protrusion 311a to 311c inserted into and fixed to the guide fixing holes 117a to 117c, respectively, at the ends of the pair of horizontal planes which extend up and down on the vertical plane and the vertical plane. The fixing protrusion 313 is formed, and the latch guide 310 having the insertion holes 315a and 315b through which the anti-rotation protrusions 217 and 257 are respectively inserted in the pair of horizontal surfaces, respectively, as shown in FIGS. 3A to 3C. A latch 370 sliding / rotating along the inside of the latch guide, and a rotation guide 350 detachably inserted into one side of the latch so that the latch 370 rotates around the pivot point 370b as shown in FIG. 3B. And a latch return spring 330 inserted into one side of the fixing protrusion 313 and the other side inserted into the insertion hole 351 of the rotation guide 350 to return the latch.

In this case, the latch 370 is formed with insertion grooves 373a and 373b into which the anti-rotation protrusions 217 and 257 penetrating the insertion holes 315a and 315b are formed on both sides thereof, as shown in FIG. The release prevention tool 133 is inserted along the through hole 131 to prevent the latch 370 from being separated out through the through hole 131 of the extension part 130 by the elastic force of the 330. Locking jaws 375a and 375b are supported on both sides, respectively.

Meanwhile, the handle part 20 for operating the latch control unit 200 includes inner and outer fixing housings 450a and 450b disposed up and down on inner and outer surfaces of a door (not shown), as shown in FIG. 4. Formed.

In addition, the pair of push bars 431 and 451 penetrating through the through holes 113a, 153a; 113b and 153b of the accommodating part 110 and the cover 130, respectively, may be pivoted in one direction. A plurality of hinges fixed to a hinge shaft 453 and formed to extend the push bars 431 and 451 to pivot the first and second moving plates of the latch control unit 200 and the other ends are bent toward the open end of the door. Inner / outer connection rods 430a and 430b and inner and outer handles 410a and 410b having upper and lower peripheral surfaces coupled to the other ends of the inner and outer connection rods 430a and 430b, respectively, are formed.

In this case, when the connecting rods 430a and 430b remove the force applied to the handles 410a and 410b, the return springs 47 coupled to the hinge shaft 453 of the fixed housing to pivot the handles to their original positions. It is elastically supported by).

In addition, the push bars 431 and 451 are positioned between the moving plates 211 and 231 to move the moving plates 211 and 231 when turning about the hinge shaft 453.

Referring to the operation and effect of the present invention configured as described above in detail.

First, as shown in FIG. 2A, in the initial state of the door lock device 10, the first and second moving plates 211 and 231 are elastically supported by the first and second return springs 219 and 239. The anti-rotation protrusions 217 and 257 are inserted into the insertion grooves 373a and 373b of the latch 370 through the insertion holes 315a and 315b of the latch guide 310, respectively.

When the user opens the door from the outside in such an initial state, as shown in FIG. 5B, when the handle 410a is pulled in the direction in which the door is opened, the first moving plate 211 elastically supported by the first return spring 219 is opened. As the hinge moves toward one side about the first rotation shaft 114a, the anti-rotation protrusion 217 of the first link 210 exits from the insertion groove 373a and the insertion hole 315a.

As the first link 210 rotates, the third link 250 hinged to the first hinge protrusion 213 of the first link 210 is opposite to the pivot direction of the first link about the second rotational axis 114b. The rotation preventing projection 257 of the third link 250 is released from the insertion groove 373b and the insertion hole 315b by turning in the direction, and the second link 230 is also centered on the third rotating shaft 114c. It pivots in the same direction as the first link 210.

The anti-rotation is released along the open end 511 of the insertion groove 510 of the door frame 500 into which a part of the latch 370 is inserted as shown in FIG. 6 while the door is pivoted outward while pulling the handle 410a. As shown in FIG. 3B, the slanted surface 370a is elastically inserted along the latch guide 310 while the latch 370 rotates with respect to the pivot point 370b while the first horizontal surface 370d slides.

Thereafter, the latch 370 is completely released from the latch insertion groove 510 of the door frame, and the latch guide 310 is inserted into the through hole 131 of the extension 130 by the latch return spring 330. The latch 370 is pivoted and slidably moved to an initial state as shown in FIG. 3A while moving along the rotation guide 350.

Subsequently, when the user releases the handle 410a, the push bar 431 extending to the connection rod 430a is turned to the initial state by the return spring 459 as shown in FIG. 5A, and thus the first moving plate ( The force on 211) is removed.

In this case, the first to third links 210, 230, and 250 linked to the first moving plate 211 are turned to the initial state by the first and second moving plate return springs 219 and 239, respectively, as shown in FIG. Accordingly, the anti-rotation protrusions 217 and 257 are inserted into the insertion grooves 373a and 373b of the latch through the through holes 315a and 315b of the latch guide.

Then, when the door is closed by a hinge closure (not shown), the inclined surface 370a of the latch 370 is pressed against the guide piece 513 shown in FIG. 6 so that the latch 370 is shown in FIGS. 2E and FIG. As shown in 3c, it is slidably moved backward along the latch guide 310. In this case, the latch 370 maintains a state in which the rotation preventing protrusions 217 and 257 are inserted into the insertion grooves 373a and 373b, respectively, to prevent rotation and to slide in the horizontal direction.

In this case, when the inclined surface 370a is inserted into the insertion groove along the guide piece, that is, when the door is closed, the latch 370 moves to the initial state by the latch return spring 330 at the same time. Is inserted into the insertion groove 510.

On the other hand, in the case of opening the door from the inside, the door can be opened / closed according to the same action as the case of opening the door from the outside as described above, but the direction in which the door is opened by the inner handle 410b of the door is opened. When pushed in, the inner push bar 451 pivoting in the opposite direction of the outer push bar rotates the second moving plate 231, and thereafter, the operation of the latch control unit 200 and the latch unit 300 is performed. Is the same as when operating the outer handle described above.

Therefore, the door lock device according to the present invention is interlocked so that the latch unit 300 can be accurately operated by the link control unit 200 which is simply and firmly connected, so that the door is opened due to the malfunction of the latch and the wind. You can prevent it.

In the present invention described above, the first to third links interlocked with the latch control unit have a simple structure so as to minimize the load applied from the handle portion to the latch portion at the time of opening / closing the door. The connection-driven arrangement can improve workability and productability, and also prevents a malfunction of the latch unit interlocked with the latch control unit, thereby preventing safety accidents caused by the elderly who cannot quickly cope with the malfunction of a door that is suddenly opened. There is an advantage to this.

Claims (5)

In the door lock device for opening the door by operating the handle portion disposed opposite to the inside / outside of the door to unlock the latch portion of the door, A latch housing disposed up and down between inner and outer handle portions of the door, and one side of which is formed with a through hole in an open end surface of the door; In order to lock / unlock the door, one side is opened through the through hole of the latch housing to form a latch guide fixed to the latch housing, and a latch for locking / unlocking the door by pivoting or sliding along the latch guide. And a latch unit comprising a rotation guide removably inserted at the rear end of the latch and resiliently installed in the latch guide to guide rotation / sliding of the latch when the door is opened / closed. When the door is opened, the latch control unit releases the latch state according to the turning of the handle part to set the latch to a rotatable / slidable state, and when the door is closed, the latch control unit sets the latch to a slidable state. A door lock device, characterized in that configured. delete According to claim 1, The latch control unit comprises a first movable plate and a second movable plate hinged to the latch housing is installed resiliently returnable in accordance with the rotation of the push bar, Consists of a first link, a second link, and a third link, which are hinged to the housing and extend in a direction perpendicular to the first and second moving plates to control the rotation of the latch unit according to the hinge movement of the first and second moving plates. Door lock device, characterized in that the. The latch guide of claim 1, wherein one side of the latch unit is opened to a through hole of the latch housing and is fixed to the latch housing. A latch for locking / unlocking the door by rotating or slidingly moving along the inside of the latch guide by the control of the plurality of linkers; And a pivoting guide detachably inserted in the rear end of the latch to guide the pivoting / sliding of the latch during opening / closing of the door and resiliently installed in the latch guide. A latch housing disposed up and down between the inner and outer handle portions of the door, and one side of which has a through hole formed in an open end surface of the door; In order to lock / unlock the door, one side is opened through the through hole of the latch housing to form a latch guide fixed to the latch housing, and a latch for locking / unlocking the door by pivoting or sliding along the latch guide. And a latch unit comprising a rotation guide removably inserted at the rear end of the latch and resiliently installed in the latch guide to guide rotation / sliding of the latch when the door is opened / closed. A latch control unit for releasing the latching state of the latch according to the turning of the handle part to open / sliding the door when the door is opened, and setting the latch to a slidable state when the door is closed; , In order to apply a force to the latch control unit by turning the latch control unit to release the latching state when the door is opened, a push bar which is elastically hinged in the fixed housing is formed to extend at one end of the connecting rod according to the rotation of the handle. A door lock device, characterized by comprising a handle portion having.