CN2780919Y

CN2780919Y - Anti-theft lock and special key

Info

Publication number: CN2780919Y
Application number: CN 200520070749
Authority: CN
Inventors: 王双琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-14
Filing date: 2005-04-14
Publication date: 2006-05-17
Anticipated expiration: 2015-04-14

Abstract

The utility model discloses a theft-proof lock and a special-purpose key thereof, and has the advantages of reasonable structure and good theft-proof effect. The theft-proof lock comprises a lock shell, a lock core and a lock tongue, wherein the lock core is provided with a key slot inside. The key slot is curve-shaped. The key slot can be an S-shaped curve. The special-purpose key comprises a main body, a rack gear and a slide block. The front end of the main body is provided with a rack gear sleeve which is provided with a slide way. The rack gear which is composed of curved chains is arranged in the rack gear sleeve. The slide block which can push the rack gear to extend out from the rack gear sleeve is arranged at the back end of the rack gear, and is positioned in the slide way. The utility model has high safety. The theft-proof lock is not easy to pry off, and avoids stealage phenomenon. The special-purpose key is matched with the theft-proof lock, and is not easy to imitate, and is safe. The utility model has practical value in the theft protection of theft-proof doors and various vehicles.

Description

Theftproof lock and private key thereof

One, technical field

The utility model belongs to daily living article, specifically a kind of theftproof lock and private key thereof.

Two, background technology

Along with the raising of people's living standard, the household economy situation has obtained very big improvement, and people's safeguard protection consciousness is also more and more stronger, and is also more and more higher to the requirement of door lock.People generally use robust security door at present, need usually theftproof lock is installed on security door, and the quality of theftproof lock directly have influence on the anti-theft effect of whole security door.The key that is arranged in the existing theftproof lock on the lock core all adopts the vertical bar shaped structure, people with the skill of necessarily unblanking uses sheet metal, iron wire etc. theftproof lock can both to be opened usually, the theftproof lock shortcoming of this structure is: poor stability, be easy to be pried open, although thereby security door is very firm, but stolen phenomenon is still serious, causes people's lives and properties to can not get sound assurance.

Three, summary of the invention

The purpose of this utility model provides a kind of theftproof lock and private key thereof of rational in infrastructure, good anti-theft effect, and this theftproof lock adopts crooked shape key structure, theftproof lock can't be opened under keyless situation; This private key adopts soft chain structure, can satisfy the requirement of theftproof lock described in the utility model fully.

The purpose of this utility model is achieved through the following technical solutions:

A kind of theftproof lock comprises lock housing, lock core and dead bolt, is provided with key in lock core, it is characterized in that: described key becomes curved shape, and key can be the bending of S shape.

In the utility model, lock is opened in the key for preventing that further utensils such as sheet metal, iron wire from can extend into, be provided with baffle plate in the key both sides, be provided with sawtooth on baffle plate, this sawtooth can stop effectively that foreign matter enters in the key.Because private key described in the utility model is soft chain structure, thereby entering of this private key do not influenced by sawtooth.

A kind of private key of theftproof lock described in the utility model, it is characterized in that: it comprises main body, tooth bar and slide block, front end in main body is provided with rack tube, on rack tube, be provided with chute, the tooth bar that is made of flexible chain is arranged in the rack tube, can promote the slide block that tooth bar stretches out in the rack tube and be arranged on the rear end of tooth bar and be positioned at chute.

Slide block described in the utility model can be sleeved on outside the rack tube, and when promoting slide block and move forward, tooth bar stretches out in the rack tube and enters in the key, and slide block can be made of plastics, and can be used as key handle and use when unblanking.Theftproof lock described in the utility model adopts the key structure of curved shape, pellet shot from a slingshot is arranged in the crooked key, and be provided with the baffle plate of band saw tooth in the key both sides, utensils such as common sheet metal, iron wire all can't extend in the key good anti-theft effect.Other structure of the present utility model is consistent with common theftproof lock.Described private key adopts flexible soft chain structure, and profile of tooth is engraved on the chain.When unblanking, flexible soft chain enters in the key of S shape bending under the slide block effect, and matches with the buckling curve of key, and behind the turning block, soft chain is followed rotation, finally opens lock.Compared with prior art, the utility model has the advantages that: safety is good, and theftproof lock can not pried open, and has avoided stolen phenomenon, makes people's lives and properties obtain sound assurance; Private key and theftproof lock are suitable, and be rational in infrastructure, is not easy by imitated, safe and reliable.The utility model is applicable to and also can be used in the various vehicle anti-thefts in the various security doors.

Four, description of drawings

Fig. 1 is the structural representation of theftproof lock in the utility model;

Fig. 2 is the A-A view of Fig. 1;

Fig. 3 is the structural representation of special-purpose key in the utility model.

Five, the specific embodiment

A kind of theftproof lock described in the utility model, comprise lock housing 1, lock core 2 and dead bolt 3, in lock core 2, be provided with key 4,4 one-tenth S shapes of key bending, other structure of theftproof lock is consistent with common theftproof lock, pellet shot from a slingshot 11 is arranged in the S shape key 4, for preventing that utensils such as sheet metal, iron wire from extending in the key 4 lock is opened, and is provided with the baffle plate 5 of band saw tooth in key 4 both sides.

A kind of private key of theftproof lock described in the utility model, comprise main body 6, tooth bar 7 and slide block 8, front end in main body 6 is provided with rack tube 9, on rack tube 9, be provided with chute 10, tooth bar 7 is made of flexible soft chain and is arranged in the rack tube 9, slide block 8 is fixed on the rear end of tooth bar 7 and is positioned at chute 10, slide block 8 is made of plastics, can be used as key handle when unblanking uses, promoting slide block 8 forward can stretch out tooth bar 7 in rack tube 9, promoting slide block 8 backward can be retracted to tooth bar 7 in the rack tube 9.Because private key is soft chain structure, thereby entering of this private key do not influenced by sawtooth.

When unblanking, as long as it is tight that the front opening of key rack tube 9 is aimed at the keyhole place and the of theftproof lock, promote slide block 8 then, tooth bar 7 promptly stretches out in the rack tube 9 and enters in the key 4, and turning block 8 can be opened lock.Because key is a S shape bending, and is provided with sawtooth on the baffle plate of key both sides, utensils such as sheet metal, iron wire can not extend in the key lock is opened, thereby the utility model is safe and reliable, and theftproof is good.

Claims

1, a kind of theftproof lock comprises lock housing (1), lock core (2) and dead bolt (3), is provided with key (4) in lock core (2), it is characterized in that: described key (4) becomes curved shape.

2, theftproof lock according to claim 1 is characterized in that: described key (4) becomes S shape bending.

3, theftproof lock according to claim 1 is characterized in that: be provided with baffle plate (5) in key (4) both sides, be provided with sawtooth on baffle plate (5).

4, the private key of the described theftproof lock of a kind of claim 1, it is characterized in that: it comprises main body (6), tooth bar (7) and slide block (8), front end in main body (6) is provided with rack tube (9), on rack tube (9), be provided with chute (10), the tooth bar (7) that is made of flexible chain is arranged in the rack tube (9), can promote the slide block (8) that tooth bar (7) stretches out in the rack tube (9) and be arranged on the rear end of tooth bar (7) and be positioned at chute (10).

5, private key according to claim 4 is characterized in that: described slide block (8) is sleeved on outside the rack tube (9).