KR20170064393A

KR20170064393A - Door Locking Apparatus

Info

Publication number: KR20170064393A
Application number: KR1020150170169A
Authority: KR
Inventors: 윤성식
Original assignee: 코리아알프스(주)
Priority date: 2015-12-01
Filing date: 2015-12-01
Publication date: 2017-06-09
Also published as: KR101831246B1

Abstract

The present invention relates to a door locking device provided inside a door to facilitate and reliably lock and unlock the door.
The door handle (11) is provided in the door (2) to lock and unlock the door (2) through a rotating operation. A rotary plate 20 coupled to the connection shaft 12 of the door handle 11 and rotated; A pair of rod bars 30 coupled to both ends of the rotary plate 20 so as to engage and disengage from the main body 3 while moving up and down; (40) coupled to the rod bar (30) and adapted to rotate upon movement of the rod bar (30); And a fixed tubular body 50 fixed to the inner side surface of the door 2 while allowing the engaging tubular body 40 to be inserted therein so as to allow rotational movement when the engaging tubular body 40 is moved.

Description

{Door Locking Apparatus}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a door locking device, and more particularly, to a door locking device provided inside a door to facilitate and reliably lock and unlock the door.

In general, the switchboard is provided with various components such as various switches and relays for operation and control of a power station or a substation. The switchboard includes a main body having a storage space and a door that is openably and closably provided in the main body And a door locking device for locking and unlocking the door.

The conventional door locking device includes a door handle for locking and unlocking the door through a rotation operation, a rotary plate connected to the shaft of the door handle and rotated simultaneously, And a rod bar for opening and closing the door through upward and downward movement.

In addition, the rod bar supports are provided at the intermediate positions of the upper and lower rod bars.

In the conventional door locking device, when the door handle is rotated to lock the door, the rotary bar rotates simultaneously and the rod bar connected to both ends of the rotary bar moves up and down in the vertical direction, When the door is locked in the locked state and, conversely, the door is rotated in the direction opposite to the locking direction of the door handle in order to release the door, the load bar is moved in the vertical direction to release the door.

However, in the conventional door locking apparatus, when the rod bar is moved up and down, the end of the rod bar is positioned on the upper and lower inner side surfaces of the main body, but the rod bar is not in close contact with the rod bar.

In other words, at the time of operating the door handle for opening / closing the door, since the rod bar must move in the vertical direction, the rod bar and the upper and lower inner surfaces of the body portion must be spaced apart from each other by a predetermined distance.

Accordingly, although the locking state of the door must be reliably performed, a sound (rattling sound) is generated as the door is pulled out while being slightly separated from the main body, and at the same time, There is a problem that can not be done.

Korean Patent No. 10-432810 (Notification Date: May 28, 2004)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art. Accordingly, it is an object of the present invention to provide a door- And a door locking device for reliably locking the door.

According to an aspect of the present invention, there is provided a door locking device comprising: a door handle provided on a door for locking and unlocking the door through rotation; A rotary plate coupled to the connection shaft 12 of the door handle and rotated; A pair of rod bars coupled to both ends of the rotating plate so as to engage and disengage from each other while moving up and down; An engagement pipe coupled to the rod bar and adapted to be rotated when the rod bar is moved; And a fixing tube fixed to the inner surface of the door so as to allow the locking tube to be inserted therein so as to allow rotational movement when the locking tube is moved.

In addition, slots are formed at both ends of the rotary plate so that the rod can be rotatably engaged and moved.

In addition, a guide member is provided at a predetermined position of the rod bar so as to guide the rod bar while being fixed to the inner side surface of the door by inserting and inserting the rod bar.

Further, the latching tube body comprises an insertion tube into which a rod bar is inserted, and a roller portion formed at an end of the insertion tube.

A guide hole is formed in the insertion tube with a predetermined length along the longitudinal direction, and a slot is formed at a position spaced apart from the guide hole so as to be rotatably engaged with a retaining pin formed at an end of the rod bar to be inserted .

In addition, the guide hole includes a first guide hole having a straight shape, a second guide hole formed obliquely from the first guide hole, and a third guide hole extending linearly from the second guide hole.

In addition, a roller portion is provided at an end of the insertion tube of the latching tube, wherein the roller portion comprises a bracket integrally formed with the insertion tube, and a rotary roll rotatably coupled to the inside of the bracket.

In addition, the rotary roll has a structure protruding from the bracket.

Further, the fixed tube body comprises an insert tube into which the insertion tube of the engagement tube is inserted, and a coupling tube protruding from one side of the insert tube.

In addition, the coupling tube is structured to be screwed with a fastening member fixed to the inner surface of the door.

In addition, a fixing protrusion is formed inside the insert tube, and is inserted and assembled into a guide hole formed in the insertion tube of the latching tube.

As described above, the door locking device of the present invention can be brought into close contact with the upper and lower inner engagement faces of the housing when locking the door, so that the door can be locked more securely.

Further, in the locking and unlocking operation of the door through the load bar, linear vertical movement is possible through one load bar, so that a smooth locking and unlocking operation can be realized.

1 is a perspective view of a door locking apparatus according to an embodiment of the present invention.
FIG. 2A is a front view of a door locking apparatus according to an embodiment of the present invention in which a load bar is moved and a door is locked. FIG.
FIG. 2B is a front view showing a state in which the door is rotated in the state shown in FIG.
3A is a side view of a door locking apparatus according to an embodiment of the present invention.
FIG. 3B is a side view of the door in the state of FIG. 3A, in which the door is released by operation of the door handle.
FIG. 4 is a perspective view showing a coupling structure of a rod bar and a latching tube body and a fixed tube body of a door locking device according to an embodiment of the present invention.
5 is an assembled cross-sectional view of a guide member of a door locking apparatus according to an embodiment of the present invention.
6A to 6C are diagrams showing the operation state of the latching tube by the movement of the rod bar in stages.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a door locking apparatus according to an embodiment of the present invention.

2A is a front view of a door locking apparatus according to an embodiment of the present invention.

FIG. 2B is a front view of the door in a state of FIG.

3A is a side view of a door locking apparatus according to an embodiment of the present invention.

A door lock device 1 according to an embodiment of the present invention includes a door handle assembly 10 fixed to the center of a switchboard door 2, A rotating plate 20 coupled to the connecting shaft 12 coupled to the handle 11 and coupled to both ends of the rotating plate 20 to be engaged and disengaged from the main body 3 while moving up and down, And a pair of load bars (30).

At both ends of the rotating plate 20, elongated holes 21 are formed so as to be rotatable and movable while the rod bars 30 are rotatably coupled.

The rod bar 30 is rotatably coupled to both ends of the rotary plate 20 so that the rod bar 30 is engaged and released from the engagement surfaces 3a and 3b formed on the upper and lower portions of the body portion 3, The locking barrel 40 is coupled to the end of the rod bar 30 and the locking barrel 40 is rotatably inserted into the fixed tubular body 50 fixed to the inner side of the door 2 .

A guide member 60 is provided at a predetermined position of the rod bar 30.

Further, the rotary plate 20 can have various shapes, but it can have a structure in which the length in the lateral direction is longer than in the longitudinal direction.

The latching tube 40 includes an insertion tube 41 into which the rod 30 is inserted and a roller 42 formed at the end of the insertion tube 41.

The insertion tube 41 is formed with a guide hole 41a having a predetermined length along the longitudinal direction and is rotatable with respect to the end of the rod bar 30 inserted at a position spaced apart from the guide hole 41a A long hole 41b is formed so as to be coupled to the first electrode 41a.

The guide hole 41a has a linear first guide hole 41a-1, a second guide hole 41a-2 inclined from the first guide hole 41a-1, And a third guide hole 41a-3 extending linearly from the hole 41a-2.

The engaging pin 31 is engaged with the end of the rod bar 30 inserted into the elongated hole 41b so that the engaging tube 40 is rotated while the rod bar 30 is fixed. And has a structure in which it is inserted so as to be movable in the long hole 41b.

A roller portion 42 is provided at the end of the insertion tube 41 of the engagement tube 40. The roller portion 42 includes a bracket 42a integrally formed with the insertion tube 41, And a rotary roll 42b which is rotatably coupled to the inside of the rotary shaft 42a.

The rotary roll 42b is arranged to protrude slightly from the bracket 42a.

The fixed tube 50 includes an insert tube 51 into which the insertion tube 41 of the engagement tube 40 is inserted and a coupling tube 52 protruding from one side of the insert tube 51 .

The coupling pipe 52 is screwed to a fastening member 53 fixed to the inner surface of the door 2.

The fastening member 53 may be formed of a bolt, a screw, or the like.

A fixing protrusion 51a is formed in the insert tube 51 so as to be inserted into a guide hole 41a formed in the insertion tube 41 of the coupling tube 40 and assembled.

The guide member 60 includes a body portion 61 through which the rod bar 30 is inserted and inserted, a fastening member 62 screwed into the inside of the body portion 61, And a fixing member 63 screwed to the inside of the door 2 and fixed to the inner surface of the door 2.

However, the guide member 60 is not limited to this structure, and can be implemented in various structures.

When the door 2 is rotated in one direction to lock the door 2 from the main body 3 through the door handle 11, the door locking device 1 according to an embodiment of the present invention having the above- The rotary plate 20 is rotated through the shaft 12 so that the rod bars 30 connected to both ends of the rotary plate 20 are moved upward and downward, respectively.

At this time, the rod bar 30 is provided with a catching tube body 40 and a fixed tube body 50. The fixed tube body 50 is protruded from the coupling tube 52 in one direction, And is fastened with the fastening member 53 fixed to the side surface thereof.

The insertion tube 41 of the latching tube body 40 is slidably inserted into the insert tube 51 of the fixed tube body 50 and the rod bar 30 Is inserted into the elongated hole 41b of the insertion tube 41 through the engagement pin 31 on the end side of the rod bar 30. When the rod bar 30 is moved, The tube 41 also slides inside the insert tube 51 constituting the fixed tube 50.

Since the fixing protrusion 51a formed in the insert tube 51 of the fixed tube 50 is fitted in the guide hole 41a of the insertion tube 41, And is rotated in accordance with the formation pattern of the guide hole 41a by the fixed fixing projection 51a.

In other words, the guide hole 41a is composed of first, second and third guide holes 41a-1, 41a-2 and 41a-3. First, the first and third guide holes 41a-1 The second guide holes 41a-2 and 41a-3 are formed in a straight line, and the second guide holes 41a-2 are inclined in one direction so that the inclined second guide holes 41a-2 The insertion tube 41 is rotated.

Since the engaging pin 31 formed at the end of the rod bar 30 is located within the elongated hole 41b of the insertion tube 41, the insertion tube 41 is rotated from one side of the elongated hole 41b to the other side The engaging pin 31 is positioned.

Since the rod bar 30 moves only in the vertical direction and does not rotate, the latching pin 31 is also held in a fixed state, so that the insertion tube 41 is inserted through the long hole 41b of the insertion tube 41 It does not hinder rotation.

As described above, when the insertion tube 41 is rotated, the roller portion 42 provided on the end side of the insertion tube 41 also rotates simultaneously.

The roller unit 42 is provided with a rotary roll 42b through a bracket 42a. The rotary unit 42b is arranged to protrude slightly from the bracket 42a. When the roller unit 42 rotates, The rotating rolls 42b protruding from the main body 3 are in close contact with the engaging faces 3a and 3b of the main body 3 such as an electric distribution board.

Therefore, since the door 2 is locked and the rotary roll 42b of the roller portion 42 is in close contact with the engagement surfaces 3a and 3b, sound due to the clearance is not generated, The locking state of the door 2 can be more reliably maintained.

The rod member 30 is provided with the guide member 60 so that the rod member 30 can be more reliably and vertically moved by the guide member 60.

On the other hand, when the door 2 is to be released from the main body 3 and is to be opened in the locked state, if the door handle 11 is rotated in the direction opposite to the rotational direction during locking, The bar 30 is moved upward and downward to move the roller portion 42 from the engagement surfaces 3a and 3b to release the engagement state.

The insertion tube 41 of the engagement tube 40 moves while being rotated in the direction opposite to the above by the guide hole 41a inside the insert tube 51 of the fixed tube body 50 The rotary bar 42b is in a state of being in tight contact with the engaging faces 3a and 3b and the rod bar 30 is moved in this state. Therefore, when the rod bar 30 is moved, The release operation can be performed.

Although the present invention has been described with respect to the door that constitutes the switchboard, the present invention is not limited thereto, and can be applied to various uses such as various cabinets, lockers, and the like.

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. 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 embodiments, but, on the contrary, But fall within the scope of the appended claims.

1: Door locking device
2: Door
3:
3a, 3b:
10: Door handle assembly
11: Door handle
12: Connection axis
20: Spindle
21: Slots
30: Road bar
31:
40:
41: insertion tube
41a: guide ball
41a-1: First guide ball
41a-2: Second guide ball
41a-3: Third guide ball
42:
42a: Bracket
42b:
50: Fixed tube
51: Insert tube
51a: Fixing projection
52: coupling pipe
53: fastening member
60: guide member
61: Body part
62: fastening member
63: Fixing member

Claims

A door handle (11) provided on the door (2) for locking and unlocking the door (2) through a rotating operation;
A rotary plate 20 coupled to the connection shaft 12 of the door handle 11 and rotated;
A pair of rod bars 30 coupled to both ends of the rotary plate 20 so as to engage and disengage from the main body 3 while moving up and down;
(40) coupled to the rod bar (30) and adapted to rotate upon movement of the rod bar (30);
A fixing tube 50 fixed to the inner surface of the door 2 so as to allow the locking tube 40 to be inserted therein so that the locking tube 40 can be rotated while being moved;
Wherein the door locking device comprises:

The method according to claim 1,
And a slot (21) is formed at both ends of the rotary plate (20) so that the rod bar (30) is rotatably coupled and movable.

The method according to claim 1,
A guide member 60 is provided at a predetermined position of the rod bar 30 so as to be inserted into and inserted into the rod bar 30 while being fixed to the inner surface of the door 2, .

The method according to claim 1,
Wherein the latching tube body (40) comprises an insertion tube (41) for inserting the rod bar (30), and a roller part (42) formed at the end of the insertion tube (41).

The method according to claim 1,
A guide hole 41a is formed in the insertion tube 41 along the longitudinal direction to have a predetermined length and a guide groove 41a is formed at a position spaced apart from the guide hole 41a, And a long hole (41b) for pivotal connection with the pin (31) is formed.

The method of claim 5,
The guide hole 41a has a straight first guide hole 41a-1, a second guide hole 41a-2 inclined from the first guide hole 41a-1, And a third guide hole (41a-3) extending linearly from the hole (41a-2).

The method of claim 4,
The roller portion (42) formed at the end of the insertion tube (41) of the latching tube body (40)
A bracket (42a) formed integrally with the insertion tube (41), and a rotary roll (42b) rotatably coupled inside the bracket (42a).

The method of claim 7,
And the rotary roll (42b) is arranged to protrude from the bracket (42a).

The method according to claim 1 or 5,
The fixed tube (50)
(51) for inserting the insertion tube (41) of the latching tube (40), and a coupling tube (52) protruding from one side of the insert tube (51).

The method of claim 9,
Wherein the coupling pipe (52) is threadedly engaged with a fastening member (53) fixed to the inner surface of the door (2).

The method of claim 9,
Wherein a fixing protrusion (51a) is formed in the insert tube (51) and is fitted into a guide hole (41a) formed in the insertion tube (41) of the latching tube body (40).