KR200329235Y1 - A Locking Device For A Door - Google Patents

Abstract

The present invention relates to a door lock device used to lock a door installed in an entrance door of an apartment and a villa, and the contact protrusion exposed to the key groove to prevent the copying and unlocking of the key through the key groove of the rotation unit. The key operation bar is connected to each other by a pair is composed of a single, and also connected to the other end of the rotation unit is characterized in that the relatively thick portion is formed so that the gap of the blocking plate, the portion connected to the rotation unit is hidden.

Description

A Locking Device For A Door

The present invention relates to a door lock device used to lock a door installed in an entrance door of an apartment and a villa, and more particularly, is exposed as a key groove to prevent copying and unlocking of a key through a key groove of a rotation unit. The contact protrusions, which are connected to each other by a pair, are composed of a single unit, and a key operating bar connected to the other end of the rotation unit is relatively thick so that the gap of the blocking plate on which the connection unit is connected is hidden. It is about.

In general, the handle installed inside the door has a disadvantage of being easily opened by an intruder from the outside is used to add a separate locking device to assist this.

The locking device is configured to rotate the grip of the rocker installed inside the door to open and close the door.

However, this locking device has a disadvantage that can easily open the door by forcing the tool through the key groove formed on the outside of the door.

This will be described in detail with reference to the accompanying drawings below.

1 is an exploded perspective view of a conventional locking device, Figure 2 is a cross-sectional view showing a combined state of the locking device according to Figure 1, Figure 3 is a block diagram of the operation bar and blocking plate shown through the key groove of Figure 1 ,

As shown in Fig. 1, Fig. 2 and Fig. 3, the conventional locking device is divided into two parts, which is fixed to the fixed unit 30 and the fixed unit 30 is fixed to the outside exposed to the door It is composed of a rotating unit (10).

Here, the rotation unit 10 has a key groove 11 formed in the axial direction, and the other end of the key operation bar 13 is connected. And the key operation bar 13 is configured to block the blocking plate (13a) for blocking the key groove (11). At this time, the coupling body 32 for preventing the key operation bar 13 from being separated is screwed to include the key operation bar 13 on the other side of the rotation unit 10.

And the fixing unit 30 has a hollow structure so that the rotation unit 10 can be inserted along the axial direction.

At this time, the rotating unit 10 inserted into the fixing unit 30 is coaxially axially communicated inwardly along the side portions of each unit 10 and 30 so as to be selectively fixed or rotated. 31) is formed.

The contact pieces 21, the support pieces 22, and the coil springs 23 are sequentially inserted into the second through holes 31 and the first through holes 12, among which the support pieces 22 are rotated. Located between the unit 10 and the fixed unit 30 is configured to be fixed to the rotating unit 10 on the fixed unit (30). At this time, the upper portion of the second through-hole 31 formed on the same line of the fixing unit 30 is a 'bar' shape so that the inserted contact piece 21, the support piece 22 and the coil spring 23 is not separated The diaphragm 40 is configured to fit.

And one side portion of the key groove 11 has a polygonal structure according to the shape of the key (not shown) is inserted is configured to rotate the rotation unit 10 more easily.

However, when the locking device is configured to release the locking device by forcibly opening the gap of the blocking plate 13a built in the key operating bar 13 through the key groove 11 using the tool as shown in FIG. There is a problem that occurs.

In addition, there was a problem that can easily duplicate the fake key after inserting the tool through the key groove (11).

In addition, there is a problem that can be opened and closed the door by forcibly rotating the rotation unit 10 by inserting the multi-angle range through the key groove (11).

Therefore, the present invention provides a locking device that can prevent the locking device from being released through the duplication of the key and the key groove in view of such a problem.

Therefore, the present invention is conceived in view of the above-mentioned conventional problems, the first object of the present invention is used to lock the door is installed in the front doors of apartments and villas, and prevents key copying and forced unlocking during installation It is to provide a lock device for the door.

And the second purpose of the present invention, a pair of contact protrusions exposed to the key grooves are connected to each other so as to prevent the copying and unlocking of the keys through the key grooves of the rotation unit is composed of a single, and also connected to the other end of the rotation unit The key operation bar is to be formed relatively thick so that the gap of the blocking plate is built up the portion connected to the rotation unit is to provide a lock for the door.

The objectives of the present invention, the key groove 110 is formed in the axial direction so that the key 3000 can be inserted along the free end, and both sides are circularly penetrated through both sides from the outside to the key groove 110 inward A first through-hole 120 penetrating at a width relatively smaller than the diameter of the circle between the rotating unit 100 and the rotating unit inserted in the axial direction. The fixing unit 300 and the key 3000 are selectively inserted into the key groove 110 so that the second through holes 310 are formed to correspond to the first through holes 120 in the shape 100 so as to communicate with each other. As the rotation unit 100 interlocked and inserted into the fixed unit 300 is rotated, the contacts are sequentially inserted corresponding to the second through holes 310 and the first through holes 120. It is connected to the other end of the piece 210, the support piece 220 and the elastic member and the rotation unit 100 The blocking plate 131 for blocking the key groove 110 is made to include a key operation bar 130 is configured to be constructed, the key operation bar 130 is a block plate that is connected to the rotation unit 100 is connected to the storage unit It is achieved by a door lock, characterized in that formed relatively thick so that the gap of the (131).

In addition, the key groove 110 is preferably formed in a circular shape while the other side is a polygon from the center.

In addition, the lower size of each of the first through holes 120 is preferably configured to be smaller than the upper two-stage structure is formed with a step (120a).

Each of the contact pieces 210 may include a first contact protrusion 211 and a second contact protrusion 212 having different lengths on both sides, and the other sides of the contact protrusions 211 and 212 may be integrally connected to each other. It takes a 'c' shape that is, it is preferable to have a relatively smaller size than the first through-hole 120 so as to have a predetermined clearance when inserted into the first through-hole 120 of the rotation unit (100). .

At this time, the connection portion of the contact piece 210 is preferably formed relatively larger than the diameter of each of the contact protrusions 211 and 212 protruding to be mounted on the first through hole 120.

In addition, the elastic member is preferably a coil spring 230 which is inserted in pairs one by one to both sides of the second through hole 310 of the fixing unit 300.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

1 is an exploded perspective view showing a conventional locking device,

Figure 2 is a cross-sectional view showing a combined state of the locking device according to FIG.

3 is a configuration of the operation bar and the blocking plate shown through the key groove of Figure 1,

4 is a perspective view of a door locking device according to the present invention;

5 is an exploded perspective view of the locking device according to FIG. 4;

6 is a cross-sectional view of the locking device for a door according to the line A-A of FIG.

7 is an enlarged cross-sectional view showing a movement for preventing key copying of the contact piece according to FIG. 6;

8 is a configuration of the key operation bar and the blocking plate shown through the key groove of Figure 4,

9 is a cross-sectional view showing a state in which the locking device for the door according to FIG. 6 is released;

10 is a state diagram showing a state in which the locking device according to the present invention is mounted on the locker of the front door.

<Description of the symbols for the main parts of the drawings>

10: Rotating Unit 11: Keyway

12: 1st port 13: Key operation bar

13a: blocking plate 21: contact piece

22: support piece 23: coil spring

30: fixed unit 31: second through hole

32: binder 40: diaphragm

100: rotation unit 110: key groove

120: first through hole 120a: step

130: key operation bar 131: blocking plate

150: binder 210: contact piece

211: first contact protrusion 212: second contact protrusion

220: support piece 230: coil spring

300: fixed unit 310: second through-hole

320: diaphragm 1000: door lock

2000: door 2100: rocker

2110: grip 2111: operating bar groove

2111a: Jaw 3000: key

3100: groove

Hereinafter will be described in detail with the accompanying drawings with respect to the locking device for a door according to the present invention.

3 is a perspective view of the locking device for a door according to the present invention, Figure 4 is an exploded perspective view of the locking device according to FIG.

As shown in FIGS. 3 and 4, the door locking device 1000 is installed outside the door 2000 of an apartment and a villa.

The locking device 1000 is largely divided into two parts, which is a fixed unit 300 fixed to the outside of the door 2000 and a rotating unit 100 which is constructed to be rotatable with respect to the fixed unit 300. It is composed.

Here, the rotation unit 100 has a key groove 110 in the axial direction, and the other end of the key operation bar 130 is connected. And the key operation bar 130 is configured to block the blocking plate 131 for blocking the key groove (110).

At least two first through holes 120 are formed on the outer circumference of the rotation unit 100 configured as described above in a line along the longitudinal direction. The first through holes 120 formed in this way are formed in parallel along the circumferential direction.

Here, the shape of the first through hole 120 is formed in both sides of the circular through the key groove 110 in the inner direction from the outer side of the rotation unit 100, the width between each of the two sides is relatively smaller than the diameter of the circular width Penetrated by At this time, the lower size of each of the first through holes 120 has a two-stage structure in which the stepped portion 120a is formed which is relatively smaller than the upper portion.

The fixing unit 300 has a hollow structure so that the rotation unit 100 can be inserted along the axial direction, and corresponds to the first through holes 120 of the rotation unit 100 inserted therein. And a second through hole 310 formed therethrough so as to communicate with each other. The second through hole 310 has the same shape as the first through hole 120 of the rotation unit 100, but has a single structure in which the upper and lower parts are integrally formed without the inner lower part having a two-stage structure. have.

In addition, each of the second through-hole 310 and the first through-hole 120, the contact piece 210, the support piece 220 so that the rotation unit 100 is inserted into the axis of the fixing unit 300 And elastic members are sequentially inserted.

Here, the contact piece 210 is composed of a first contact protrusion 211 and a second contact protrusion 212 different in length from each other on both sides, and the other side of each of the contact protrusions 211 and 212 are integrally connected to each other ' It is shaped like a c '.

At this time, the connection portion of the contact piece 210 is formed to be formed relatively larger than the diameter of each of the contact protrusions 211 and 212 protruding to be located on the step (120a) of each of the first through holes 120 do. Therefore, when the contact piece 210 is inserted into the first through-hole 120 of the rotation unit 100 is mounted without being separated onto the key groove 110, the ends of the contact protrusions 211 and 212 are partially exposed. .

The support pieces 220 are located at the rear of the contact piece 210, and two elastic members are located at both rear sides of the contact piece 210. The elastic member is preferably a coil spring 230.

In addition, the upper portion of the second through-hole 310 formed on the same line of the fixing unit 300 is inserted into the contact piece 210, the support piece 220 and the coil spring 230 so as not to be separated to the outside 320 ) Is fitted.

And the key operation bar 130 is connected to have a play on the other end of the rotation unit 100 is configured to rotate together when rotating, and the combination 150 to prevent the departure of the key operation bar 130 Is screwed to the other end of the rotation unit 100 so as to be external to include a connection portion of the key operation bar 130.

Here, the key operation bar 130 is configured to block the blocking plate 131 for blocking the key groove 110 of the rotation unit (100).

The key operation bar 130 is to open the gap of the blocking plate 131 arranged in the key operation bar 130 through the key groove 110 of the rotation unit 100 to force the locking device 1000 is released. The portion connected to the rotation unit 100 is formed relatively thick to prevent it. This is to hide the gap of the blocking plate 131 arranged in the key operating bar 130 when viewed through the key groove 110 is not visible (shown in Figure 8).

6 is a cross-sectional view of the locking device for a door according to the line AA of Figure 4, Figure 7 is an enlarged cross-sectional view showing the movement for preventing the key copy of the contact piece according to Figure 6, Figure 8 is shown through the keyway of Figure 4 Fig. 9 is a sectional view showing a key operating bar and a blocking plate, and Fig. 9 is a cross-sectional view showing a state in which the door locking device according to Fig. 6 is released.

6, 7, 8 and 9, the rotation unit 100 is built in the fixed unit 300 is fixed to the door 2000, the built-in rotating unit 100 is fixed unit And selectively rotateable with respect to 300.

To this end, the contact piece 210, the support piece 220, and the coil spring 230 are sequentially inserted through the second through hole 310 of the fixing unit 300.

Here, each of the contact protrusions 211 and 212 of the contact piece 210 has a 'c' shape in which the other side is integrally connected, and thus, when viewed through the key groove 110, the contact protrusions 211 and 212 are individually exposed.

And it is located behind the contact piece 210 is the support piece 220, the support piece 220 is the first through-hole 120 of the rotating unit 100 and the second of the fixed unit 300 Through the through-hole 310 in fact determines the rotation of the rotating unit 100.

And it is located behind the support piece 220 is the coil spring 230, the coil spring 230 is an elastic body for individually resilient both sides of the contact piece 210 exposed to the key groove 110. Most of the coil spring 230 is located in the second through hole 310 of the fixed unit 300.

In this case, the shape of the second through hole 310 corresponds to the shape of the connection portion of each contact protrusion 211 and 212 of the contact piece 210 to be inserted, both sides are circularly penetrated, and also penetrated between the two sides formed through Since the penetrating is formed in a relatively smaller width than the diameter of the circular shape, the coil spring 230 may be guided when the coil spring 230 is inserted, and the coil spring 230 may be prevented from being displaced.

And the key operating bar 130, as shown in Figure 8, by using a tool to open the gap of the blocking plate 131 arranged in the key operating bar 130 through the key groove 110 forcibly unlocking device 1000 is released. The portion connected to the rotation unit 100 is formed relatively thick so as to prevent it from being. This is formed to have a sufficient thickness so that the gap of the blocking plate 131 arranged in the key operation bar 130 when viewed through the key groove 110 is not visible.

In addition, the key groove 110 of the rotation unit 100 is formed in a circular shape on the other side from the center, the other side is composed of a pentagon. This is to prevent the forced release of the rotating unit 100 through the five-angle stove.

The locking device 1000 configured as described above, as shown in FIG. 7, each contact protrusion 211 exposed on the key groove 110 when the key 3000 having the same shape is inserted to copy the key through the key groove 110. It is very difficult to match the exposure length of 212).

Since the first through hole 120 of the rotation unit 100 has a relatively small size so as to have a predetermined clearance, even if the end of the length of the first contact projection 211 is balanced even different coil springs Due to the elasticity of the 230, the protruding portion of the second contact protrusion 212 having a relatively short length is inclined to prevent centering, thereby preventing copying of the key 3000.

Therefore, as shown in FIG. 9, the groove 3100 formed in the key 3000 must be exactly aligned with both sides of the contact piece 210 exposed on the key groove 110 so that the rotation unit 100 can rotate.

10 is a state diagram showing a state in which the locking device according to the present invention is mounted on the locker of the front door.

As shown in FIG. 10, the locking device 1000 is coupled to the grip 2110 of the rocker 2100 mounted inside the door 2000 and installed therein.

An operation bar groove 2111 corresponding to the key operation bar 130 of the rotation unit 100 is formed at the inner end portion of the grip 2110. At this time, the corners of the pair of locking jaws 2111a are formed long in the axial direction to face each other inside the operation bar groove 2111.

The key operation bar 130 of the rotation unit 100 is inserted between the locking jaws 2111a and is configured to release the rocker 2100 depending on whether the rotation unit 100 is rotated.

As described above, the door locking device 1000 may be widely applied to a general field in which the locking device 1000 is installed, in addition to being installed in a limited place such as a general door 2000 and a front door. It can also be used in places like locks in safes and lockers.

The length of the contact piece 210 and the support piece 220 which are sequentially inserted into the second through hole 310 and the first through hole 120 may vary according to the depth of the groove 3100 of the key 3000. can do.

As described above, the lock device for a door of the present invention can prevent forced rotation of the rotation unit through key copying and tools, and greatly improves stability, thereby preventing theft.

In addition, it can be installed and used in places such as safes, storage boxes, and locks in bathrooms, where theft accidents frequently occur.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, various other modifications and variations may be made without departing from the spirit and scope of the present invention. Accordingly, it is intended that the appended claims cover such modifications and variations as fall within the true scope of the present invention.

Claims (6)

The key groove 110 is formed in the axial direction so that the key 3000 can be inserted along the free end, and both sides are circularly penetrated from the outside to the key groove 110 in the inward direction, and the diameters of the circles are between the two sides. A rotation unit 100 having at least two first through holes 120 having a relatively smaller width formed in a line along a length direction; A fixing unit (300) having a second through hole (310) formed so as to correspond in shape to correspond to each first through hole (120) of the rotation unit (100) inserted in the axial direction; As the key 3000 is selectively inserted into the key groove 110, the second through holes 310 and the first through holes 310 are interlocked so that the rotation unit 100 inserted into the fixing unit 300 can be rotated. A contact piece 210, a support piece 220, and an elastic member sequentially inserted into the shape corresponding to the 120; And A key operation bar 130 connected to the other end of the rotation unit 100 to block the key groove 110 and formed therein; The part connected to the rotation unit 100 of the key operation bar 130 is relatively thicker than the thickness of the key operation bar 130 so as to cover the gap of the blocking plate 131 arranged for the door lock. The method of claim 1, The key groove 110 is a lock for the door, characterized in that one side is formed in a circular shape from the center, the other side is formed in a polygon. The method of claim 1, The lower size of each of the first through-holes 120 is configured to be smaller than the upper, the door locking device, characterized in that the two-stage structure is formed with a step (120a). The method of claim 1, Each of the contact pieces 210 is formed of a first contact protrusion 211 and a second contact protrusion 212 different in length from each other on both sides, the other side of each of the contact protrusions 211, 212 are integrally connected to each other It takes a 'c' shape, characterized in that having a relatively smaller size than the first through-hole 120 to have a predetermined clearance when inserted into the first through-hole 120 of the rotation unit (100). Door lock. The method according to claim 1 or 4, The connection portion of the contact piece 210 is a door lock device, characterized in that formed relatively larger than the diameter of each of the contact protrusions 211, 212 protruding to be mounted to each of the first through holes 120. . The method of claim 1, The elastic member is a door lock device, characterized in that the coil spring 230 is inserted into the pair one by one each to both sides of the second through hole 310 of the fixing unit (300).