KR100528834B1 - Duplicate lock for door - Google Patents

Abstract

Cover the keyhole of the first physically strong door lock with a cover that can be opened and closed, and open the cover with the second anti-picking lock, make the first lock and the second lock integrally, and even beginners can easily drill, etc. The double lock can be fixed to the door of the building without the use of tools, and the anti-picking is also strengthened, and the first lock body is lifted against the first lock cover by a spring, so that the first lock can correspond to the door thickness. Provides a double lock for doors that can be locked.

In a double lock for a door that covers a key hole of a door's first lock with a cover that can be opened and closed, and the cover is opened by a second lock, the divided left and right fixing members of the fastening member are aligned from both sides, so that the first door is attached to the door. It is fixed to the neck of the lock by bolts, and the second box frame is fixed to the fixing member via a coil spring around the bolt, and furthermore, the first box frame and the base member of the second lock are placed on the second box frame. It is fixed by an elongated bolt that reaches the fixing member so as to be integrally formed. The fixing member is lifted by the coil spring with respect to the first and second box frames, and the first lock body is spring-loaded with respect to the first lock cover. The double lock for the door which can raise and lower and integrate the two types of keys which open and close a 1st lock and a 2nd lock.

Description

Double lock for door {DUPLICATE LOCK FOR DOOR}

The present invention relates to a double lock in a door of a building.

Various types of locks have been proposed and used as door locks in buildings.

Picking techniques that can unlock locks without the use of a regular key have evolved as the structure of the lock becomes more complex and newer, but any lock can be used to prevent crime such as complete theft. It is practically impossible. Therefore, it is proposed and practiced to prevent crime by installing two or more locks in one door and making the time necessary to open the lock without using a regular key as long as possible. Generally, it is called one-door locking. However, a plurality of keys must be carried and a part of the keys are forgotten or lost, and are not widely spread.

Moreover, when fixing these double locks to the doors of buildings, it is common to attach holes such as bolts by attaching fasteners such as bolts to the doors, and generally attaching another lock as one-door locking. The attachment work was complicated and cumbersome, such as the need to use a processing tool. In addition, various fixing members had to be prepared to correspond to the door thickness.

SUMMARY OF THE INVENTION The present invention aims to solve these problems, and comprises a first lock and a second lock integrally covering the keyhole of the first physically strong door lock with an openable cover, the cover being opened by a second anti-picking lock. Even for beginners, the double lock can be secured to the door of the building without using a processing tool such as a drill and the picking prevention is enhanced, and the first lock body is lifted with respect to the first lock cover by a spring. A double lock is provided for the door, characterized in that the first lock can be fastened and fixed according to the door thickness.

The double lock according to the present invention covers a first lock of a door with a cover that can be opened and closed, and is divided into a first lock that is physically strong and a first lock that is physically strong in a double lock for a door that opens the cover by a second lock. The cover includes a left and right fixed member and a cover including a first box frame, a second box frame, and a second anti-picking lock, which are fixed to the fixing member. The first lock may be fixed to the door, and the first lock body may be lifted with respect to the first lock cover by a spring, so that the first lock may be fastened and fixed according to the thickness of the door.

The double lock of the present invention covers the key hole of the first lock of a door with a cover that can be opened and closed, and in the double lock for a door which opens the cover by the second lock, the divided left and right fixing members of the fixing member are fitted from both sides, It is fixed to the neck of the first lock attached to the door by bolts, and the second box frame is fixed to the fixing member by interposing a coil spring around the bolt, and further the base member of the first box frame and the second lock. Is fixed by an elongated bolt that reaches the fixing member on the second box frame, and is integrally formed. The fixing member is lifted with respect to the first and second box frames by a coil spring, and the first lock body. It can be raised and lowered with respect to the 1st lock cover by a spring.

The double lock according to the present invention is characterized in that the two types of keys for opening and closing the physically strong first lock and the second anti-picking lock are integrated.

(Example)

Figure 1 is a partial perspective view of the door, Figure 2 is an exploded perspective view of the split lock member of the double lock, Figure 3 is an exploded perspective view of the double lock, Figure 4 is a side view of a state in which the double lock is attached to the door, Fig. 5 is a side view of the lifting mechanism of the first lock, and Fig. 6 is a perspective view of two types of keys integrated for a double lock.

In Fig. 1, the door 1 is attached with a double lock consisting of a handle 2 and a physically strong first lock 3 and a second anti-picking lock 8. The clasp 4 is sunk by the operation of the first lock 3. The key hole 3a of the first lock 3 is covered by a lid 7 attached to the opening and closing. To open the door 1, first, the cover 7 is opened by inserting the second key 9 into the key hole of the second lock 8, and furthermore, the door 7 is opened in the key hole 3a of the first lock 3; 1 Pull the latch 4 by inserting the key 5 and then open the door 1 by the handle 2.

Thus, the keyhole 3a of the 1st lock 3 is covered by the cover 7, and since it is necessary to operate the 2nd lock 8 to open the cover 7, the 1st lock 3 ) Can significantly increase the safety.

As shown in Fig. 2, the fixing member 14 is divided into left and right fixing members 14R and L, and one fixing member 14R is inverted U-shaped frame portion 14a and both inverted U-shaped at both ends. It consists of the flat part 14b between frame parts, and has a screw hole and a long hole in the top part of the inverted U-shaped frame part 14a, and the flat part 14b is attached to the neck part 3b of the lock 3. It has a corresponding semicircle 14c. The other fixing member 14L has a semicircular shape corresponding to the neck portion 3b of the lock 3, and has screw holes at both ends, similarly to the flat portion 14b of the one fixing member 14R. It is a flat member.

As shown in FIG. 2, the bolt 16 is attached to the neck 3b of the first lock 3 attached to the door 1 while matching the fixing member 14 with the divided left and right fixing members 14R and L. As shown in FIG. 3, the second box frame 12 is fixed to the fixing member 14 through the coil spring 13 around the bolt 16, and the first box frame 11 is fixed. And the base member 10 of the second lock 8 by the long bolt 17 reaching the fixing member 14 on the second box frame 12.

Fig. 4 shows a state in which the double lock of the integral configuration assembled in the above order is attached to the door 1. By contracting the coil spring 13, the first lock 3 is lifted with respect to the box frames 11 and 12, so that it can be fastened and fixed corresponding to the plate thickness of the door 1. The fixing member 14 is attached to the door 1 via a coil spring 13. The coil spring 13 around the bolt 16 constitutes a lifting mechanism of the fixing member 14. By this structure, the fastening force with respect to the door 1 of a double lock can be adjusted.

In FIG. 5, the first lock 3 consists of a body having a head 3h and a neck 3b and a cover 3c, and a cylinder of the lower edge 3he and the cover 3c of the head 3h. The spring 3d is interposed between the lower edge 3ce, whereby the first lock body can be lifted with respect to the first lock cover 3c by the spring 3d, so that the first lock 3 Can be fastened to the door thickness.

FIG. 6 shows an example in which two types of keys inserted into the keyhole 3a of the first lock 3 of the double lock and the keyhole of the second lock 8 are integrated. FIG. 6A shows a key in which two types of keys are integrated by a ring, FIG. 6B shows a key having two types of keys on both sides of one member, and FIG. 6C shows two keys connected in a hinged shape. Show one key. Since the two types of keys are integrated as described above, there is no loss of one key, no loss, and no confusion with other combinations.

The first lock 3 and the second lock 8 may be used in combination, for example, with a cylinder lock, a magnet lock, a card lock, a ten-key lock, and other types as appropriate.

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According to the present invention, since the first lock has a physically strong structure, and the second lock is a double lock that is integrally constructed by preventing the picking of the second lock, even a first-time user can easily use a machining tool such as a drill without using a processing tool such as a drill. The lock can be fixed in the middle, and the picking prevention can be strengthened. A lifting mechanism of the fixing member is provided so that the double lock strengthens the fastening force with respect to the door, and the first lock body is lifted with respect to the first lock cover by a spring. As such, the first lock can be fixed corresponding to the door thickness. In addition, a double lock can be easily combined without drilling holes or fixing screws in the door. According to the present invention, since two types of keys of the double lock are integrated, one key is forgotten or lost. Neither is it confused with other combinations.

1 is a partial perspective view of a door,

Figure 2 is an exploded perspective view of the split lock member of the double lock,

3 is an exploded perspective view of the double lock,

4 is a side view of a state in which a double lock is attached to the door,

5 is a side view of the lifting mechanism of the first lock, and

Fig. 6 is a perspective view of two types of keys integrated for a double lock.

(Explanation of the sign)

1: door 2: handle

3: first lock `3a: first lock keyhole

3b: first lock neck 3c: first lock cover

3d: first lock spring 3h: first lock head

4: clasp 5: the first key

7: cover 8: second lock

9: second key 10: base member

11: first box frame 12: second box frame

13: coil spring 14: fixing member

16: bolt 17: long bolt

Claims (3)

delete In a double lock for a door that covers a key hole of a door's first lock with a cover that can be opened and closed, and the cover is opened by a second lock, the divided left and right fixing members of the fastening member are aligned from both sides, so that the first door is attached to the door. It is fixed to the neck of the lock by bolts, and a second box frame is fixed to the fixing member with a coil spring interposed around the bolt, and further, the first box frame and the base member of the second lock are fixed to the second box frame. It is fixed by a long bolt that reaches to the fixing member on the upper portion of the integrated configuration, the holding member is lifted with respect to the first and second box frame by a coil spring, the first lock body is spring-loaded A double lock for a door, characterized in that it can be elevated relative to a first lock cover. The double lock for a door according to claim 2, wherein the two types of keys for opening and closing the physically strong first lock and the second anti-picking lock are integrated.