CN101225721A

CN101225721A - Theft-proof lock core and key for the same

Info

Publication number: CN101225721A
Application number: CNA2007100130645A
Authority: CN
Inventors: 张华东
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-01-16
Filing date: 2007-01-16
Publication date: 2008-07-23

Abstract

The invention discloses an anti-theft lock core and a key used for the lock key, comprising a lock core cover fixedly connected with the lock body, a lock core provided with a key hole and a spring pin apparatus. A mandrel is extendingly arranged inside the key hole of the lock core . The lock core cover is sleeved on the outside of the lock core and the lock core is masked and buttoned inside the lock body. A key through hole corresponding with the key hole of the lock core in shape is positioned at the terminal outside the lock core cover. The key comprises a key handle and a key body inserted into the key hole. The key body is provided with a plurality of key teeth corresponding to the spring pin apparatus and a mandrel cavity can be inserted by the mandrel. The anti-theft lock core and the key used for the lock key has the advantages of insusceptibility to unauthorized unlocking to effectively protect the personal and property safety of people and a simple structure yet difficult to replicate by others.

Description

Anti-theft lock and anti-theft lock key

Technical field

The present invention relates to a kind of manufacture technology field of lock, especially relate to a kind of anti-theft lock and be used for the key that this anti-theft lock is used.

Background technology

Being locked in the daily life is the very general life appliance of a kind of application; it is widely used in the middle of people's house, trip instrument, safety cabinet and the drawer; effectively prevented the harm of lawless person to people; give daily life daily life and go out to have played the safety guarantee effect, protected the safety of people's life and property.But because the lock structure that current people use is relatively simple, the outer end of lock core is exposed to the outside of lock body, like this, the lawless person just adopts the tool used in crime as master key and so on easily, insert in the keyhole of lock core, under the situation of rotational lock core by force, pellet shot from a slingshot in the lock core is pushed in lock tube and the lock body successively, thereby will open easily, this provides opportunity to the lawless person, and along with the raising day by day of lawless person's crime means, tool used in crime advanced day by day, the lockset that current people use can not play the safety curtain effect to daily life and daily life can not adapt to current situation.People have invented the infringement that various locks are defendd the lawless person thus, to ensure the safety of the person and property, as electronic lock, coded lock etc., but these lock not only cost than higher, and structure is too complicated, damage than being easier to, cause certain difficulty for people's use, particularly to the elderly and children, when using such lock, inconvenience very.Simultaneously, the unlatching key of these locks that current people use, simple in structure, imitated easily, be difficult to play effective protective effect.

Summary of the invention

Technical problem to be solved by this invention has provided a kind of difficult anti-theft lock of being opened by the lawless person, has effectively ensured the safety of people's the person and property.

The present invention also provides a kind of key that is easy to open this anti-theft lock, and is simple in structure and be not easy by anti-system.

For solving the problems of the technologies described above, technical scheme of the present invention is: anti-theft lock, comprise the lock core cover of fixedlying connected, the lock core that is provided with keyhole and spring marble device with lock body, and extension is provided with mandrel in the keyhole of described lock core; Described lock core cover is sleeved on the lock core outside and lock core cover is buckled in the lock body, and the end that described lock core cover is positioned at the lock body outside is provided with and the corresponding key through hole of the keyhole shape of lock core.

As a kind of improvement, described plug face extension is provided with annular groove, and described lock core cover and lock body are provided with the hole that is communicated with annular groove, and the hole of passing on described lock core cover and the lock body is provided with the fixture block that inserts annular groove.

As further improvement, the outer end of described mandrel is concordant with the outer face of key through hole.

The anti-theft lock of technique scheme owing to be to have adopted to be provided with the lock core cover of fixedlying connected with lock body, the lock core that is provided with keyhole and spring marble device, is provided with mandrel and extend in the keyhole of lock core; The lock core cover is sleeved on the lock core outside and lock core cover is buckled in the lock body; and the end that the lock core cover is positioned at the lock body outside is provided with and the corresponding key through hole of the keyhole shape of lock core; setting by mandrel; reduced the space in the keyhole; make under the situation of not using key; other object is difficult to be inserted in the keyhole; be buckled in the lock body outside the lock core and and adopt the lock core cover that is fixed together with lock body to be sleeved on lock core cover; like this; lock core is under the protection of lock core cover; adopted homemade anti-system key to insert and after forcing to rotate pellet shot from a slingshot is pushed in lock tube and the lock body successively with regard to being not easy by the lawless person; thereby avoided lock by the phenomenon that the lawless person opens easily, effectively ensured the safety of people's person and property.Employing is provided with the hole that is communicated with annular groove on lock core cover and lock body, the hole of passing on described lock core cover and the lock body is provided with the fixture block that inserts annular groove, and lock core and lock core cover effectively are arranged in the lock body, has also guaranteed the rotation of lock core simultaneously.Adopt the outer end of mandrel concordant, can effectively avoid copied key to insert in the keyhole with the outer face of key through hole.

The key that is used for this anti-theft lock, comprise the shank of the key, insert the key body of keyhole, key body is provided with and the corresponding key bit of spring marble device, also is provided with on the key body to hold the mandrel chamber that mandrel inserts, in use during this key, hold mandrel by the mandrel chamber, and stir the spring marble device, drive lock core and rotate by the key bit that key body is provided with, lock is opened, simple in structure and easy to use.

Description of drawings

Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.

Fig. 1 is the structural representation of anti-theft lock of the present invention;

Fig. 2 is the Key structure schematic diagram that the present invention is used for this anti-theft lock.

The specific embodiment

As shown in Figure 1, anti-theft lock, comprise lock body, the lock core cover 1 of fixedlying connected with lock body, be sleeved on the lock core 2 in the lock core cover 1, and spring marble device 3, lock core 2 is provided with keyhole, and spring marble device 3 can adopt the commonplace spring marble device of application on the current lockset, promptly at lock core cover 1, lock core 2 is provided with a row pellet shot from a slingshot hole, be provided with two pellets shot from a slingshot under spring promotes in the pellet shot from a slingshot hole, wherein a pellet shot from a slingshot stretches in the keyhole of lock core 2, and another pellet shot from a slingshot is arranged between this pellet shot from a slingshot and the spring and its both ends are positioned at the pellet shot from a slingshot hole of lock core cover 1 and lock core 2 respectively, prevents the rotation of lock core 2, when inserting key in the keyhole, the pellet shot from a slingshot that promotion is stretched in the keyhole is return in the pellet shot from a slingshot hole, and under the promotion of this pellet shot from a slingshot, another pellet shot from a slingshot is rollback also, make the contact surface of two pellets shot from a slingshot be positioned at contacting of lock core cover 1 and lock core 2, key drives lock core 2 and rotates, and lock is opened, and also can adopt along keyhole to be axially arranged with the such spring marble of multiple row, to improve the security performance of lock.In the keyhole of lock core 2, extend and be provided with mandrel 4; And lock core cover 1 is sleeved on lock core 2 outsides and lock core 2 covers are buckled in the lock body; the end that is positioned at the lock body outside at lock core cover 1 is provided with and the corresponding key through hole 11 of the keyhole shape of lock core 2; like this; by 1 pair of lock core of lock core cover, 2 cover buttons; the outer end of lock core 2 is just covered; under the protection of the lock core cover 1 of fixedlying connected with lock body; homemade or anti-system key just is difficult to rotational lock core 2 after inserting keyhole; also just avoided pellet shot from a slingshot to be pushed successively in the lock core cover, thus the phenomenon of having avoided lock to be opened easily by the lawless person.For lock core 2 and lock core cover 3 effectively is arranged in the lock body, also guarantee simultaneously the rotation of lock core 2, be provided with annular groove 21 in lock core 2 surface extensions, and be provided with the hole that is communicated with annular groove 21 on lock core cover 1 and lock body, the hole of passing on lock core cover 1 and the lock body is provided with the fixture block 5 that inserts annular groove 21.And adopt the outer end of mandrel 4 concordant, insert in the keyhole effectively to prevent copied key with the outer face of key through hole 11.

As shown in Figure 2, the key of this anti-theft lock comprise the shank of the key 6 and with the corresponding key body 7 of lock core key hole shape, key body 7 can pass key through hole 11 insertion lock core keyholes on the lock core cover 1, on key body 7, be provided with and spring marble device 3 corresponding key bits, the routine number of key bit is corresponding with lock inner spring pellet shot from a slingshot example number, also is provided with on key body 7 and can holds the mandrel chamber 71 that mandrel 4 inserts.During this key, hold mandrel 4 by mandrel chamber 71, and stir spring marble device 3 by the key bit that key body is provided with in use, promote the pellet shot from a slingshot rollback, key only drives lock core 2 rotations that are positioned at lock body, and lock is opened.

Claims

1. anti-theft lock comprises the lock core cover (1) of fixedlying connected with lock body, the lock core (2) that is provided with keyhole and spring marble device (3), it is characterized in that: extension is provided with mandrel (4) in the keyhole of described lock core (2); Described lock core cover (1) is sleeved on lock core (2) outside and lock core (2) cover is buckled in the lock body, and the end that described lock core cover (1) is positioned at the lock body outside is provided with the corresponding key through hole of keyhole shape (11) with lock core (2).

2. anti-theft lock as claimed in claim 1, it is characterized in that: the extension of described lock core (2) surface is provided with annular groove (21), described lock core cover (1) and lock body are provided with the hole that is communicated with annular groove (21), and the hole of passing on described lock core cover (1) and the lock body is provided with the fixture block (5) that inserts annular groove (21).

3. anti-theft lock as claimed in claim 1 or 2 is characterized in that: the outer end of described mandrel (4) is concordant with the outer face of key through hole (11).

4. the key that is used for the described anti-theft lock of claim 1, it is characterized in that: described key comprises the shank of the key (6), can insert the key body (7) of keyhole on the lock core, key body (7) is provided with and the corresponding key bit of spring marble device (3), also is provided with on the described key body (7) and can holds the mandrel chamber (71) that mandrel (4) inserts.