KR101881031B1 - Flush bolt having one touch device enables to lock and unlock - Google Patents

Abstract

The present invention provides a locking device installed at either the upper or lower portion of a first door of a pair of doors to maintain a closed state of the first door, The locking device includes a main body cover having a rectangular perforation formed in a longitudinal direction thereof and exposed to one side of the first door, A body including a pair of body panels; A slider installed between the body panels to be movable up and down through a fixing pin; And a fixing part having one side fixed to the slider and the other side provided with a latch, wherein the latch is inserted or pulled into a fixing groove provided on a frame or a ground of the door corresponding to the upward / downward movement of the slider And a locking device for locking and unlocking the door by a one-touch method.
The present invention can be expected to provide an effect that the latch can be restored and the closed state of the door can be maintained by simply closing the door.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door lock device capable of locking and unlocking by a one-

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for maintaining a closed state of a door of a hinged type and more particularly to a locking device for maintaining the closed state of a door by simply closing the door, The present invention relates to a door locking device capable of locking and unlocking by a one-touch method that can be performed by a user.

In general, locks are used on the doors to keep them closed and to limit forced opening, and there are many kinds of locks.

Particularly, among these locking devices, a flush bolt is used, which is installed in any one of the door-shaped double doors and is embedded through the side edges to maintain the closed state of the door.

Regarding the lock device represented by such a flush bolt, Korean Patent No. 10-1098879 entitled " Lock device for double door lock "(hereinafter referred to as " prior art ") has been registered.

The above-mentioned prior art is a device for mounting and locking in a door 1 on one side of a double door, which is inserted into the interior of the door 1 so as to be embedded in the door 1 and has slide grooves 11 and rails 13, (10); A lock (20) having a flow plate (21) moving up and down on a rail (13) of the plate (10) and having a catch (23) for interrupting the lock by the flow plate (21); Actuating means (30) located between the plate (10) and the lock body (20) and connected to the lock body (20) by bolts to induce vertical movement; And an operating body 40 which is mounted on the slide groove 11 of the plate 10 so as to move up and down and which is connected to the operating means 30 by a bolt to change the locking state, It is an object of the present invention to make it possible to ensure a relatively simple structure and easy installation and replacement by unskilled persons, thereby ensuring durability with good operability and ensuring higher safety together with ease of everyday opening operation, Purpose and effect.

However, according to the prior art, when the door is opened or closed, it is troublesome to artificially actuate the lock, and when the door is closed, the state of the lock is not easily recognized, There is also a problem.

Therefore, there is no limitation in installation, and a door lock device is required to prevent damage during operation. Further, there is an urgent need for research and development of a door locking device that prevents the door from being left in an openable state.

KR 10-1098879 B

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a door locking device in which a latch can be restored and a closed state of a door can be maintained only by closing a door There is.

Another object of the present invention is to provide a door locking device which can be selectively installed at the upper and lower portions of a door, and can be installed at the upper and lower portions of the door, thereby further strengthening the closed state of the door.

It is a further object of the present invention to provide a latch which is provided with a holder for restricting the entry of the latch into the fixing groove so that the latch is retained in a state of being pulled out from the fixing groove, Thereby preventing the bolt and the ground from being damaged by preventing friction with the ground.

It is still another object of the present invention to provide a door locking device in which the holder is interlocked with the opening and closing of the door so as to facilitate the operation of the locking device.

In order to achieve the above object, according to the present invention, there is provided a locking device installed in either a top or a bottom of a first door of a pair of doors to maintain a closed state of the first door, And a pair of body panels arranged side by side on both sides of the main body cover, wherein the main body cover is exposed to one side of the first door; A slider installed between the body panels to be movable up and down through a fixing pin; And a fixing part having one side fixed to the slider and the other side provided with a latch, wherein the latch is inserted or pulled into a fixing groove provided on a frame or a ground of the door corresponding to the upward / downward movement of the slider And a locking device for locking and unlocking the door by a one-touch method.

The slider includes a slider cover which is disposed in parallel to the main cover and in which a holding groove is formed on a surface exposed by perforations provided in the main cover; And a pair of slider panels arranged side by side on both sides of the slider cover and having a slot through which the fixing pin is inserted, wherein the latch is moved up and down so that the latch is pulled into or pulled out from the fixing groove .

Wherein the slider includes: a slider elastic portion for allowing elasticity to act when the slider is moved up and down; A slider spring having one side supported by the fixing pin and the other side supported by the fixing portion; And a pair of separation prevention panels disposed side by side on the slider panel and supporting the side surfaces of the slider spring together with the slider panel.

Wherein the fixing portion includes: a fixing block that supports the other side of the slider spring and is disposed between the slider panels; And a fixing rod having a threaded portion fixed to the slider by being fastened to the fixing screw through the fixing block at one end and the latch coupled to the other end.

Preferably, the latch is an elastic structure or a structure extending integrally or detachably with the fixed rod.

The main body preferably further includes a holder for holding the slider in a pulled-out state from the fixing groove by restricting up-and-down movement of the slider.

Wherein the holder includes: a holder pin having a fixing pin passing through the body panel, the holder body being provided between the openings of the body cover to allow elastic flow; A protrusion formed at one end of the holder body and drawn out to the outside through the opening; A cutout portion formed at the other end of the holder body and receiving the fixing pin corresponding to the flow of the holder body; A protector disposed at a front side of the holder main body and restricting a lead-out length of the protrusion; And a latch jig provided at a rear side of the holder main body to engage with a ring provided on the slider panel to restrict movement of the slider and to hold the latch in a state of being drawn out from the fixing groove.

The holder may further include a holder elastic part having a holder spring installed at the other end of the holder body.

According to the present invention as described above, the latch can be restored and the closed state of the door can be maintained only by closing the door.

In addition, the present invention can be selectively installed on the upper and lower portions of the door, and the door can be more firmly closed by providing the upper portion and the lower portion together.

Further, according to the present invention, since the latch for restricting the entry of the latch into the fixing groove is provided, the latch is retained in the state of being pulled out from the fixing groove, so that when the locking device is installed at the lower portion of the door, It is possible to prevent the friction and the damage of the latch and the ground from being prevented.

Further, according to the present invention, the holder is interlocked with the opening and closing of the door, so that the convenience of operation of the locking device can be expected.

Brief Description of Drawings Fig. 1 is an installation state diagram illustrating a locking device according to a preferred embodiment of the present invention. Fig.
2 is a perspective view illustrating a locking device according to a preferred embodiment of the present invention.
3 is a cross-sectional view illustrating a slider according to a preferred embodiment of the present invention,
4 is a cross-sectional view illustrating an operating state of a locking device according to a preferred embodiment of the present invention,
5 is a detailed view for explaining a latch according to a preferred embodiment of the present invention,
6 is a perspective view illustrating an example of a locking device according to an embodiment of the present invention.
7 is a cross-sectional view illustrating a holder according to a preferred embodiment of the present invention,
8 is a cross-sectional view illustrating an example of a slider according to one preferred embodiment of the present invention,
FIG. 9 is a flowchart showing an operation example of a holder according to a preferred embodiment of the present invention, FIG.
10 is a flowchart illustrating an operation example of a holder according to a preferred embodiment of the present invention,
11 is a perspective view for explaining the use state of the locking device according to the present invention.

Hereinafter, the present invention will be described in more detail based on the accompanying drawings and preferred embodiments. 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.

In describing the present invention, the defined terms are defined in consideration of the function of the present invention, and it can be changed according to the intention or custom of the technician working in the field, and the definition is based on the contents throughout this specification It should be reduced.

1 is an installation state view illustrating a locking device according to a preferred embodiment of the present invention.

As shown in the figure, the locking device 100 of the present invention is installed in at least one of the upper and lower portions of the first door 20 of the pair of doors 10 so as to maintain the closed state of the first door 20 And more particularly to a locking device which is configured such that the fixing portion 150 can be elastically moved in and out of the fixing groove 40 so that the closed state of the door 10 can be maintained only by closing the door 10 .

The locking device 100 includes a main body 110 exposed to one side of the first door 20, a main body 110, a slider 130 installed to be movable upward and downward, and a closed state of the first door 20 And a fixing unit 150 for holding the fixing unit 150, which will be described in detail below with reference to the drawings.

FIG. 2 is a sectional view for explaining a locking device according to a preferred embodiment of the present invention, and FIG. 3 is a sectional view cut along the line A-A of FIG. 2 to explain a slider.

The main body 110 includes a main cover 111 exposed to one side of the first door 20 and a pair of main body panels 120 installed side by side on both sides of the main cover 111, do.

A hole 113 is formed in the main body cover 111 and a plurality of coupling holes J for coupling with the door 10 are provided at both ends thereof.

The perforation 113 is a vertically formed rectangular hole for allowing the slider 130 to be moved up and down artificially.

The main body panel 120 is disposed in parallel with both longitudinal sides of the main body cover 111. Each main body panel 120 is formed with a fixing hole 121 through which at least one fixing pin 122 passes, Since the fixing hole 121 is for engagement with the slider 130, a description thereof will be given later.

The slider 130 is vertically movable between the main body panels 120 in spite of the fixing pin 122 and moves the fixing part 150 coupled to the slider 130 up and down, (40) or pulled out of the fixing groove (40).

The slider 130 includes a slider lid 131 provided with a holding groove 133 and a pair of slider panels 135 arranged substantially perpendicular to the slider lid 131 at both ends of the slider lid 131 And a slider elastic portion 139 that enables the elastic operation of the slider 130. [

The slider cover 131 is a plate member having a predetermined thickness and is disposed in parallel to the main cover 111. Preferably, the slider cover 131 is spaced apart from the main cover 111 to prevent friction.

The gripping grooves 133 are depressed grooves formed at one side of the slider lid 131 in the longitudinal direction thereof so as to facilitate the vertical operation of the slider 130. [ For example, it is possible to directly move the slider 130 up and down in a one-touch manner using a finger.

The slider panel 135 is installed in parallel to the main body panel 120 and is spaced apart from the main body panel 120. The slider panel 135 is provided with a plurality of slider panels 135 corresponding to the fixing holes 121 provided in the main body panel 120 An elongated hole 137 is formed so that the fixing pin 122 can pass therethrough.

The long hole 137 is a hole that is rectangular in the vertical direction as shown in the figure, and the long hole 137 is for limiting the moving width of the slider 130.

When the slider 130 is pressed downward in the direction opposite to the elasticity, when the pressing force is released, the latch 151 is returned to its original position to maintain the state of being drawn into the fixing groove 40 .

The slider spring 139 has a slider spring 141 whose one side is supported by the fixing pin 122 and the other side is supported by the fixing portion 150 and a slider spring 141 which is provided in parallel with the slider panel 135, And a pair of escape prevention panels 143 for supporting the front and rear surfaces of the slider spring 141 together with the slider spring 135.

The slider spring 141 is preferably a coil spring, but the present invention is not limited thereto, and various types of spring for inducing elasticity as well as a plate spring can be applied.

The fixing part 150 includes a fixing block 157 which is installed between the slider panels 135 and supports an end of the slider spring 141 and a fixing block 157 which passes through the fixing block 157 and which is fixed to the fixing block 157 via a fixing screw 159 And a fixing rod 153 having a threaded portion 155 fixed to the slider 130 and a latch 151 formed at the other end.

The latch 151 is preferably a resilient structure having elasticity and resilience itself or a structure that is integrally or detachably connected to the fixed rod 153 and moves together with the fixed rod 153, I will explain.

4 is a detailed view for explaining a latch according to a preferred embodiment of the present invention.

As shown in FIG. 4A, the latch 151 mainly includes a structure integrally or detachably extended with the fixing rod 153 as shown in FIG. 4A, or an elastic structure that is elastically driven by itself as shown in FIG. 4B have.

4A, when the latch 151 is extended from the fixed rod 153, the slider 130 is vertically adjusted so that the latch 151 can be retracted into the fixed groove 153 .

When the first door 20 is opened again, the slider 130 is moved downward by a one-touch method as shown in FIG. 5 to pull the latch 151 out of the fixing groove 40, Can be opened.

More specifically, when the gripper groove 133 is pulled downward by using, for example, a finger, the slider 130 is slid along the fixing pin 122, And thus the latch 151 is pulled out of the fixing groove 40, so that the first door 20 is in an openable state.

Thereafter, the slider 130 is elastically restored by the slider elastic portion 139. When the latch 151 is retracted into the fixing groove 40 or is not pulled into the fixing groove 40, the slider 130 is exposed . This is effective when the locking device 100 of the present invention is installed on the upper portion of the first door 20.

4B, the latch 151 may be an elastic structure that is elastically driven by itself. As shown in the figure, one side (a side contacting the frame F) is curved so that the opened first door 20 may be simply closed to keep the door 10 closed.

When the locking device 100 is installed on the lower portion of the first door 20, the latch 151 may be pulled out of the fixing groove 40 and embedded in the first door 20, A description thereof will be made with reference to Fig.

6 is a sectional view for explaining an example of a locking device according to a preferred embodiment of the present invention, FIG. 7 is a sectional view for explaining a holder, FIG. 7A is a sectional view based on a BB line in FIG. 6, Is a sectional view taken along the line DD of Fig. 7A.

When the locking device 100 is installed on the lower portion of the first door 20, the holder 160 is further provided to limit the protrusion of the latch 151, that is, the movement of the slider 130.

The holder 160 includes a holder main body 161 having a support pin 124 passing through a support hole 123 provided in the main body panel 120 and an opening 115 provided in the main cover 111, A projecting portion 167 provided at one end of the holder main body 161 and led out to the outside through the opening 115 and a support pin 124 formed at the other end of the holder main body 161 to receive the support pin 124 according to the flow of the holder main body 161 And a stopper 162 provided at one side of the holder main body 161 to limit the lead-out length of the protrusion 167. The latch 151 is provided on the upper end side of the holder main body 161 and is engaged with the hook 136 of the slider panel 135 to restrict the movement of the slider 130, And a retaining jaw 163 for retaining the retained state.

The protrusions 167 are sloped in both side directions from the attachment, and are drawn out to the outside through the opening 115 due to this shape feature. At this time, the projecting portion 167 serves as a switch. When the second door 30 is closed as shown in FIG. 11 or is naturally pressed by the contact with the side surface of the second door 30 , The movement restriction state of the slider 130 is released as shown in Fig.

The holder main body 161 is further provided with an engaging holder elastic part 165 so that the holder spring 166 is housed therein so that the holder main body 161 can be elastically moved forward and backward. One end of the holder spring 166 is supported by the inner side wall of the holder elastic portion 166 and the other end is supported by the support pin 124 so that the holder body 161 can be elastically moved horizontally.

The cutout 164 is for securing the fluidity of the holder body 161 by allowing horizontal movement of the holder body 161. The cutout portion 164 is a groove having a depth corresponding to the flow interval of the holder 160.

The prevention piece 162 is formed to protrude from the holder body 161 to prevent the holder body 161 from protruding more than necessary through the opening 115. [ 7B, the protrusion 162 may protrude from both sides in a planar direction, or may protrude up and down on a plane basis.

The latching jaw 163 engages the loop 136 provided on the latch 151 so that the movement of the holder 160 is ultimately limited.

The ring 136 is preferably a structure integrally protruded from the other end of each slider panel 135 to which the fixing portion 150 is fastened as shown in FIG. 8 based on CC in FIG. 6, It is possible.

The ring 136 is formed in a sloped shape at one side that is engaged with the stopping jaw 163 and the other side is in the shape of a right angle. When the ring 136 enters the stopping jaw 163, When the latch 163 is excessively moved backward, the latch 151 is engaged with the region of the right-angled loop 136 to limit the movement of the slider 130. The latch 151 is pulled out from the fixed groove 40 A detailed description thereof will be made with reference to FIG. 9, and reference numerals for the constituent elements will be described with reference to FIGS. 6 to 8. FIG.

9 is a cross-sectional view illustrating an operation example of a holder according to an exemplary embodiment of the present invention.

When the slider 130 is pulled upward from the steady state of FIG. 9A as shown in FIG. 9B, the latch 151 is pulled out of the fixing groove 40.

The slider 130 moved upward is engaged with the hook 136 and the latch jaw 163 provided at the end of the slider 130 so that the movement of the slider 130 is limited. At this time, the latch 151 is retracted from the fixing groove 40, The door 20 becomes openable. That is, when the locking device 100 is installed at the lower portion of the first door 20, the latch 151 is not brought into contact with the ground, and it is possible to prevent damage due to friction which may otherwise occur , The first door (20) can be opened and closed smoothly.

Meanwhile, the closed state of the first door 20 is maintained by the elastic restoration of the holder 160, which will be described with reference to FIG. 10, with reference to FIGS. 6 to 8 do.

10 is a flowchart illustrating an operation example of a holder according to a preferred embodiment of the present invention.

10A shows a state in which the latch 151 is pulled out of the fixing groove 40 while the slider 130 and the holder 160 are engaged and fixed. However, when the holder 160 is pressed, the holder 160 is retracted to disengage the engagement between the hook 136 and the engagement protrusion 163, whereby the slider 130 and the fixing portion 150 are engaged with each other, And moves downward by the repulsive force of the spring 141. [ The latch 151 is pulled into the fixing groove 40 and the holder 160 is fixed to the holder 160 in a state in which the protrusion 167 is pulled out through the opening 115 by the elasticity of the holder spring 166, And this state is the initial state.

In this case, it is preferable that the holder 160 is pressed by the second door 30 as shown in FIG. 11, but it is not limited to this, and a user's intentional action (for example, Or pressurizing with a separate tool) may be the subject of pressurization.

Thus, the locking device 100 of the present invention can provide the convenience of switching the first door 20 in an openable state to the closed state naturally even by closing the second door 30 only.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: door 20: first door
30: second door 40: fixing groove
100: locking device 110:
111: main cover 113: perforation
115: aperture 120: body panel
121: Fixing hole 122: Fixing pin
123: Support hole 124: Support pin
130: Slider 131: Slider cover
133: gripping groove 135: slider panel
136: collar 137: slot
139: Slider elastic portion 141: Slider spring
143: separation prevention panel 150:
151: latch 153: fixed rod
155: threaded portion 157: fixed block
159: fixing screw 160: holder
161: holder body 162:
163: latching jaw 164: incision
165: holder elastic portion 166: holder spring
167:

Claims (8)

A locking device installed in either one of a pair of doors above or below a first door to maintain the closed state of the first door,
A main body cover having a rectangular perforation in the longitudinal direction and exposed to one side of the first door and a pair of main body panels arranged side by side on both sides of the main cover;
A slider installed between the body panels to be movable up and down through a fixing pin; And
And a fixing unit having one side fixed to the slider and the other side provided with a latch,
The latch is drawn or drawn into a fixing groove provided on a frame or a ground of the door corresponding to the upward / downward movement of the slider,
Wherein the main body comprises a holder for restricting movement of the slide to an upper portion or a lower portion of the slide to thereby maintain the pulled-out state of the latch from the fixing groove. lock. The method according to claim 1,
The slider
A slider cover disposed in parallel with the main cover and having a holding groove formed in a surface exposed by the perforations provided in the main cover; And
And a pair of slider panels installed side by side on both sides of the slider cover and having a slot through which the fixing pin passes,
And the latching groove is moved up and down so that the latch is pulled into or pulled out from the fixing groove. 3. The method of claim 2,
The slider
A slider elastic portion for allowing elasticity to act upon the up and down movement;
A slider spring having one side supported by the fixing pin and the other side supported by the fixing portion; And
And a pair of escape prevention panels installed side by side on the slider panel and supporting the side surfaces of the slider spring together with the slider panel. . The method of claim 3,
The fixing unit includes:
A stationary block supporting the other side of the slider spring and disposed between the slider panels; And
And a fixing rod having a threaded portion formed at one end thereof to be fixed to the slider by being fastened to the fixing screw through the fixing block, and the latch being coupled to the other end thereof. Door lock. 5. The method of claim 4,
The latch
Wherein the locking member is an elastic structure or a structure that is integrally or detachably extended with the fixing rod. delete The method according to claim 1,
Wherein the holder comprises:
A holder main body having a fixing pin passing through the main body panel and being installed to be able to elastically flow between an opening provided in the main cover;
A protrusion formed at one end of the holder body and drawn out to the outside through the opening;
A cutout portion formed at the other end of the holder body and receiving the fixing pin corresponding to the flow of the holder body;
A protector disposed at a front side of the holder main body and restricting a lead-out length of the protrusion; And
And a latch jig provided at a rear side of the holder body to engage with a ring provided on the slider panel to restrict movement of the slider and to maintain the latch in a state of being drawn out from the fixing groove. To lock and unlock the door. 8. The method of claim 7,
Wherein the holder comprises:
And a holder elastic part in which a holder spring is installed in the other end of the holder body.

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