KR200329234Y1 - 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 block 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 object of the present invention, the key groove is formed in the axial direction so that the key can be inserted along the free end, both sides are circularly penetrated from the outer side to the inner side inward direction and each of the penetrating sides between the relative diameter than the circular diameter And a plurality of 'c' shaped grooves formed in a small width at a predetermined depth so as to correspond to each of the grooves of the rotation unit inserted in the axial direction and at least two rotation units formed in a line along the longitudinal direction. Both sides penetrate in a circular shape so as to communicate with each other, and a fixing unit having a through hole penetrating a width relatively smaller than the diameter of each of the penetrating sides and a fixed unit interlocked as the key is selectively inserted into the key groove. Contact pieces, support pieces, and bullets sequentially inserted correspondingly to the respective through-holes and grooves so that the rotating unit inserted into the rotating parts can be rotated. And a key operating bar configured to be connected to the member and the other end of the rotation unit to block the key groove, wherein the key operation bar is configured to be connected to the rotation unit of the key operation bar so that the gap of the block is formed. Formed relatively thicker than the thickness of the operation bar The key operation bar is achieved by a lock for the door, characterized in that formed relatively thick so that the gap between the blocking plate, the portion connected to the rotating unit is formed.

The key groove is preferably formed in a circular shape while the other side is formed in a polygonal shape from the center.

In addition, each contact piece is composed of a first contact protrusion and a second contact protrusion different in length from each other on both sides, the other side of each of the contact projections take a 'c' shape that is integrally connected to each other, It is preferable to have a relatively smaller size than the groove so as to have a predetermined clearance when inserted into the groove.

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

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: groove 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: through hole 320: diaphragm

1000: door lock 2000: door

2100: rocker 2110: grip

2111: operating bar groove 2111a: locking 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 grooves 120 are formed on the outer circumference of the rotation unit 100 configured as described above in a line along the longitudinal direction. The groove portion 120 thus formed is formed in parallel along the circumferential direction. At this time, the shape of the groove portion 120 is circularly formed on both sides from the outer side of the rotation unit 100 to the key groove 110 in the inward direction, between each of the two sides of the predetermined predetermined width smaller than the diameter of the circular It is shaped like a 'c' shaped deeply.

And the fixing unit 300 has a hollow structure so that the rotation unit 100 can be inserted along the axial direction, so as to correspond to each groove portion 120 of the inserted rotation unit 100 to correspond in shape. It is configured to include a through hole 310 formed through. The through hole 310 has the same shape as the groove portion 120 of the rotation unit 100, but is formed to penetrate between both sides in addition to both sides thereof.

The contact pieces 210, the support pieces 220, and the elastic members are sequentially formed in the through holes 310 and the grooves 120 so that the rotation unit 100 is inserted into and fixed to the axis of the fixing unit 300. Is 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 '. Therefore, the end portions of the contact protrusions 211 and 212 are partially exposed when inserted into the groove part 120 of the rotation unit 100.

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 through hole 310 formed on the same line of the fixing unit 300, the plate 320 is inserted so that the inserted contact piece 210, the support piece 220 and the coil spring 230 is not separated to the outside. Are 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 through hole 310 of the fixing unit 300.

Here, the groove 120 of the rotation unit 100 has a 'c' shape, which is dug at a predetermined depth between the two penetrating sides, and therefore, each contact protrusion 211 of the contact piece 210 inserted into the groove 120. , 212 are individually exposed to the keyway 110.

And it is located behind the contact piece 210 is the support piece 220, the support piece 220 is the through hole 310 of the groove portion 120 and the fixing unit 300 of the rotation unit 100. In fact, it is determined whether or not the rotation unit 100 rotates.

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 through hole 310 of the fixing unit 300.

In this case, the shape of the through hole 310 corresponds to the shape of each of the contact protrusions 211 and 212 of the contact piece 210 to be inserted. Since it is formed through a relatively small width, it serves to guide the coil spring 230 when the coil spring 230 is inserted, and can prevent the coil spring 230 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 trim the exposure length of 212).

Since the groove 120 of the rotation unit 100 has a relatively small size so as to have a predetermined clearance, even if the balance of the end of the long first contact protrusion 211, even if different coil springs 230 Due to the elasticity of the second contact protrusion 212, which is relatively short, the protrusion of the second contact protrusion 212 is inclined and cannot be centered, 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 sequentially inserted into the through hole 310 and the groove part 120 may be varied according to the depth of the groove 3100 of the key 3000.

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 (4)

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. Rotating unit 100 is formed with at least two grooves 120 of the '' 'shape is formed in a relatively small width to a predetermined depth in a line along the longitudinal direction; Both sides penetrate in a circular shape so as to correspond to the grooves 120 of the rotation unit 100 inserted in the axial direction and communicate with each other, and the penetrating sides penetrate in a width smaller than the diameter of the circle. A fixing unit 300 having a through hole 310 formed therein; As the key 3000 is selectively inserted into the key groove 110, the through hole 310 and the groove 120 may be shaped so that the rotation unit 100 inserted into the fixing unit 300 may be rotated. The contact piece 210, the support piece 220 and the elastic member are sequentially inserted corresponding to the; 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, 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 Take a 'c' shape, the door lock device characterized in that it has a relatively smaller size than the groove portion 120 to have a predetermined clearance when inserted into the groove portion 120 of the rotation unit (100). 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 of each one by each of the through-hole 310 of the fixing unit 300.