CN2431355Y - Door lock - Google Patents

Abstract

The utility model relates to an overlapped door lock which has the functions of preventing shifting and prying. The utility model is composed of a lock core body, a lock core and a key, wherein, the lock core body and the lock core are formed by connecting in series with lock core bodies and lock cores by screw nails, and the key is composed of a circular pipe key and a slice-shaped key which is installed in a circular pipe of the circular pipe key and can slide in the circular pipe. An insulating pad is installed on the lock core body, and a contact is installed on the insulating pad; a contact is arranged on the lock core in a direction perpendicular to the slice-shaped key. The utility model has the advantages of perfect function, simple structure, easy realization and alarming function.

Description

The superposing type door lock

The utility model relates to daily hardware technology field, and exactly it is a kind of good anti-dialling and the superposing type door lock of pick-proof performance that have.

At present, be used for security door on the market or the built-in lock on other is more, traditional built-in lock core all is to adopt the single line billiards structure, snap and pellet shot from a slingshot are on same direction, adopt sheet shape key, this structure pick-proof and anti-group function are relatively poor, in recent years, security door adopts cruciate flower shape four sides lock cylinder structure mostly, and the anti-theft feature of this structure obviously improves, but, still can not effectively prevent dialling and pick-proof, this can be after user's key loss, please repair the lock master worker and find out in opening the door, repair the lock master worker and use several iron to collude, door can be opened about ten minutes.Thereby the theftproof performance of existing door lock is perfect not enough.

The purpose of this utility model provides a kind of superposing type door lock with good pick-proof and anti-group function, and can have warning function.

The purpose of this utility model is achieved by the following scheme, it is made up of lock core body, lock core and key, it is characterized in that: lock core body and lock core are to be connected with screw (11) polyphone by lock core body (3), lock core (16) and lock core body (8), lock core (18) to form, key is to be combined by pipe key (17) and sheet key (2), sheet key (2) is contained in pipe key (17) pipe, and can slide in pipe.Felt pad (13) is housed on the lock core body (8), contact (15) is housed on the felt pad (13), lock core (18) is gone up and sheet key (2) vertical direction is equipped with contact (14).Between lock core body (3) and the lock core body (8) anti-drilling pad (7) and (9) are housed.Have hole, room, contact (19) on the sheet key (2).

The utility model has the advantages that: have good anti-dialling and tamper-resistant function, and simple for structure, be easy to promote, safe and reliable.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is the A-A sectional view of Fig. 1.

Fig. 4 is a Key structure schematic diagram of the present utility model.

Among the figure 1 be key, 2 be hole, room, contact for lock core, 19 for pipe key, 18 for lock core, 17 for contact, 16 for contact, 15 for felt pad, 14 for rotor plate, 13 for screw, 12 for pellet shot from a slingshot, 11 for anti-drilling pad, 10 for lock core body, 9 for anti-drilling pad, 8 for pellet shot from a slingshot, 7 for spring, 6 for lead sealing, 5 for lock core body, 4 for sheet key, 3.

Embodiment 1:

The utility model is relatively simple for structure, and the factory that possesses the general machining ability all can produce, and existing Lock Factory needn't carry out any investment and can produce.Get all the ready shown in the accompanying drawing behind the component, assembling gets final product with reference to accompanying drawing.During use, the pipe key is inserted in the lock core 16, rotate 90 ° after, again sheet key 2 is pushed in the lock core 18, door can be opened.Contact 14 is connected alarm with 15, if the robber adopt to dial the lock mode when opening the door, exactly pipe key place is pushed aside, and sheet key place also is difficult to push aside, and in case stirs also and can report to the police.The pellet shot from a slingshot of pipe key can be provided with 2 rows or 3-4 row as required.

Embodiment 2:

The utility model can not adorned felt pad and contact as required yet, and other structure and embodiment 1 are identical, have not both had warning function, can satisfy the requirement of general security door yet.

Claims (4)

1, superposing type door lock, it is made up of lock core body, lock core and key, it is characterized in that: lock core body and lock core are to be connected with screw (11) polyphone by lock core body (3), lock core (16) and lock core body (8), lock core (18) to form, key is to be combined by pipe key (17) and sheet key (2), sheet key (2) is contained in pipe key (17) pipe, and can slide in pipe.

2, a kind of superposing type door lock according to claim 1 is characterized in that: felt pad (13) is housed on the lock core body (8), contact (15) is housed on the felt pad (13), lock core (18) is gone up and sheet key (2) vertical direction is equipped with contact (14).

3, a kind of superposing type door lock according to claim 1 is characterized in that: between lock core body (3) and the lock core body (8) anti-drilling pad (7) and (9) are housed.

4, a kind of superposing type door lock according to claim 1 is characterized in that: have hole, room, contact (19) on the sheet key (2).

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