CN204920489U

CN204920489U - Anti -theft lock

Info

Publication number: CN204920489U
Application number: CN201520658618.7U
Authority: CN
Inventors: 李世波
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-08-28
Filing date: 2015-08-28
Publication date: 2015-12-30
Anticipated expiration: 2025-08-28

Abstract

The utility model belongs to the technical field of the anti -theft lock core, specificly an anti -theft lock is provided. An anti -theft lock, is equipped with lock core, the lock core cover in key hole and locks the shell including the center, be equipped with collar flange on the inner wall of lock shell, the lock shell is put into from locking the opposite both ends of shell respectively to lock core and lock core cover, collar flange is in form the interlayer between lock core and the lock core cover, be equipped with several rows of notch cuttype pellet shot from a slingshot holes on lock core, lock core cover and the lock shell, the notch cuttype pellet shot from a slingshot is downthehole to have the pellet shot from a slingshot, and during locking, the pellet shot from a slingshot passes in proper order will in notch cuttype pellet shot from a slingshot hole lock core, lock core cover and lock shell link to each other. The utility model discloses possess special lock shell and notch cuttype pellet shot from a slingshot pore structure, can play certain theftproof and prevent katogene to when the out of register key inserted the key hole, the lock core can dally in the lock core cover, avoids providing the information of unblanking for lawless persons, thereby reaches certain theftproof purpose.

Description

A kind of theftproof lock

Technical field

The utility model belongs to anti-theft lock technical field, and concrete provides a kind of theftproof lock.

Background technology

Lockset is for ensureing the important tool of life and property safety in people's daily life, but with regard to current existing technology, the lockset that theftproof performance is good, its structure often more complicated, is not easy to processing; The simple lockset of structure is easy to processing, but theftproof performance is undesirable, effectively can not resist the infringement of lawless person.

China Patent No. CN200820104222.8, name is called the patent document of " a kind of anti-theft lock ", disclose a kind of anti-theft lock core structure, this structure mainly comprises lock core, lock core cover, pellet, spring, locking bolt and lock shell, on this lock core, cover has lock core cover, and put into lock enclosure together from front end, lock core, lock core cover and lock shell correspondence have the straight key slot type marble hole of number row, often arrange marble hole and at least place three pellets, for connecting lock core, lock core cover and lock shell, necessary rotational lock core and lock core cover simultaneously when this lock core is unblanked, give and use master key to unblank to increase certain difficulty.But this lock core structure is when applying, lock core and lock core cover are all put into together with the front end of lock shell, gap between lock core, lock core cover and lock shell leads directly to marble hole, and the marble hole for placing pellet is straight key slot type, this lock core is made still to there is potential safety hazard on anti-destructive, theftproof performance, be embodied in: lawless person can use simple instrument to be extracted by pellet from keyhole, then lock is opened by rotational lock core and lock core cover; Or insert with the gap of hard object from lock core, lock core cover and lock shell, until just pellet between connection lock core cover with lock shell can be pushed open when arriving marble hole, then rotational lock core and lock core cover, just lock can be opened.

Utility model content

The purpose of this utility model is to solve the problem, and provides a kind of tamper-proof better with theftproof performance, the theftproof lock that security performance is good.

The technical solution of the utility model is achieved in that

A kind of theftproof lock, comprise center be provided with lock core 1, the lock core cover 2 of keyhole 11 and lock shell 3, the inwall of described lock shell 3 is provided with collar flange 31, described lock core 1 and lock core cover 2 put into lock shell 3 from the two ends that lock shell 3 is contrary respectively, and described collar flange 31 forms interlayer between described lock core 1 and lock core cover 2.

As further improvement of the utility model, described lock core 1, lock core cover 2 and lock shell 3 are provided with number row notch cuttype marble hole 7, described notch cuttype marble hole 7 is provided with back-moving spring 6, pellet 5 is gone back in notch cuttype marble hole 7, during locking, described lock core 1, lock core cover 2 and lock shell 3 are connected through described notch cuttype marble hole 7 by pellet 5 successively.

As further improvement of the utility model, the radius of described notch cuttype marble hole 7 increases one by one along the direction of described lock core 1, lock core cover 2 and lock shell 3; Described pellet is made up of first, second, third pellet connected successively, described first, second, third pellet size in notch cuttype marble hole 7 match stepped.

Adopt this notch cuttype marble hole 7 and pellet 5, pellet 5 can be made to be merely able to do one-way movement along lock core 1, lock core cover 2 and lock shell 3 direction in notch cuttype marble hole 7, and owing to forming an interlayer between lock core 1 and lock core cover 2, lock core cover 2 and pellet is made to be in the space of relative closure, even if lawless person can use instrument to be unpluged by the pellet 5 being positioned at lock core 1 from keyhole, the pellet 5 connecting lock core cover 2 and lock shell 3 also cannot be extracted due to the reason in aperture, still lock cannot be opened, thus strengthen theftproof performance of the present utility model further.

Further improve as of the present utility model, during locking, the notch cuttype marble hole 7 being positioned at described lock core 1 has a pellet 5 at least, and described lock core 1 does not have pellet 5 to be connected between overlapping 2 with lock core, and described lock core cover 2 is connected with having a pellet 5 between described lock shell 3 at least.

Further improve as of the present utility model, described lock core 1 and lock core cover 2 all have annular keyway, two of the corresponding described annular keyway of described lock shell 3 not homonymy have unidirectional keyhole 32, be provided with cylindrical connecting key 4 in described unidirectional keyhole 32, the width of described annular keyway is greater than the diameter of described cylindrical connecting key 4.So just can ensure the idle capability of lock core 1 when locking, improve self-protection of the present utility model and theftproof performance.

The utility model advantage: structure is simple, is easy to processing and manufacturing, with low cost, antitheft functional with self-protection.

Accompanying drawing explanation

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

Fig. 2 is notch cuttype marble hole partial enlarged drawing of the present utility model;

Fig. 3 is scheme of installation of the present utility model.

1-lock core, 2-lock core cover, 3-locks shell, 4-connecting key, 5-pellet, 6-back-moving spring, 7-notch cuttype marble hole, 8-locking bolt, 11-keyhole, the annular keyway of 12-first, the annular keyway of 21-second, the unidirectional keyhole of 32-, 51-first pellet, 52-second pellet, 53-the 3rd pellet.

Detailed description of the invention

Below in conjunction with specific embodiment, set forth the utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can do various amendment or change to the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model instruction.

A kind of theftproof lock, comprise center be provided with lock core 1, the lock core cover 2 of keyhole 11 and lock shell 3, the inwall of lock shell 3 is provided with collar flange 31, lock core 1 and lock core cover 2 put into lock shell 3 from the two ends that lock shell 3 is contrary respectively, and this collar flange 31 forms interlayer between lock core 1 and lock core cover 2; The termination of lock core cover 2 is provided with the locking bolt 8 backing down dead bolt and unblank, keyhole 11 is provided with in lock core 1, lock core 1, lock core cover 2 and lock shell 3 are provided with number row notch cuttype marble hole 7, during locking, lock core 1, lock core cover 2 and lock shell 3 are connected through notch cuttype marble hole 7 by pellet 5 successively, and the radius of marble hole 7 increases one by one along the direction of lock core 1, lock core cover 2 and lock shell 3; Pellet 5 is made up of the first pellet 51, second pellet 52 connected successively, the 3rd pellet 53, size in notch cuttype marble hole 7 match stepped; The marble hole end being positioned at lock shell 3 is provided with a back-moving spring 6; Pellet in lock core 1 can contact with key of unblanking; During locking, the marble hole of every ranking in described lock core 1 has a pellet at least, and described lock core 1 does not have pellet to be connected between overlapping 2 with lock core, and described lock core cover 2 has pellet to be connected with having at least in a marble hole between described lock shell 3; Lock core 1 and lock core cover all have annular keyway 12,21, the right position of the corresponding described annular keyway of lock shell 3 has unidirectional keyhole 32, in unidirectional keyhole 32, connecting key 4 is installed, annular keyway 12, the width of 21 is greater than connecting key 4 diameter, and can ensure that lock core 1 and lock core are enclosed within when not having pellet to be connected like this can freely rotate, and don't can depart from lock shell 3.

When normally unblanking, to unblank in key insertion keyhole 11, pellet in lock core 1 is pushed into lock core 1 and lock core overlaps between 2 by key of unblanking, lock core 1 and lock core are overlapped 2 be connected, pellet meanwhile between lock core cover 2 and lock shell 3 is also taken advantage of a situation and is pushed open, makes lock core overlap non-marble between 2 with lock shell 3 and is connected, then rotate key of unblanking, movable lock core 1 and lock core cover can be with simultaneously 2 rotate, thus the lock core locking bolt 8 overlapped on 2 be rotated back down dead bolt to unblank.

Due to lock core 1 and lock core cover 2, the non-marble when locking is connected, and when with when not matching key unlocking, lock core 1 meeting is dallied in lock core cover 2, and lock core cover 2 has pellet to be connected between shell 3 can not to rotate with lock core 1, cannot unblank with locking; Because lock shell 3 inwall is provided with collar flange 31, lock core cover 2 and pellet 5 is made to be in the state of relative closure, the pellet being connected lock core cover 2 and lock shell 3 cannot be pushed open with the gap of lock shell 3 from lock core 1 by hard object by lawless person, and lock is opened by rotational lock core 1 and lock core cover 2; Pellet 5 towards by the direction one-way movement compressed, can not can only be extracted from keyhole 11 by the pellet 5 of notch cuttype marble hole 7 and corresponding radius, makes lock core cover 2 lose pellet 5 with lock shell 3 and is connected, thus cannot reach object of unblanking.

Claims

1. a theftproof lock, comprise center be provided with lock core (1), the lock core cover (2) of keyhole (11) and lock shell (3), it is characterized in that: the inwall of described lock shell (3) is provided with collar flange (31), described lock core (1) and lock core cover (2) put into lock shell (3) from the two ends that lock shell (3) is contrary respectively, and described collar flange (31) forms interlayer between described lock core (1) and lock core cover (2).

2. theftproof lock as claimed in claim 1, is characterized in that: described lock core (1), lock core cover (2) and lock shell (3) are provided with number row's notch cuttype marble hole (7), and described notch cuttype marble hole (7) is provided with back-moving spring (6); Also have pellet (5) in notch cuttype marble hole (7), during locking, described lock core (1), lock core cover (2) and lock shell (3) are connected through described notch cuttype marble hole (7) by pellet (5) successively.

3. theftproof lock as claimed in claim 2, is characterized in that: the radius of described notch cuttype marble hole (7) increases one by one along the direction of described lock core (1), lock core cover (2) and lock shell (3); Described pellet (5) is made up of first, second, third pellet connected successively, described first, second, third pellet size in notch cuttype marble hole (7) match stepped.

4. theftproof lock as claimed in claim 3, it is characterized in that: during locking, the notch cuttype marble hole (7) of every ranking in described lock core (1) has a pellet (5) at least, and do not have pellet (5) to be connected between described lock core (1) with lock core cover (2), have at least between described lock core cover (2) with described lock shell (3) in a notch cuttype marble hole (7) and have pellet (5) to be connected.

5. theftproof lock as claimed in claim 1, it is characterized in that: described lock core (1) has the first annular keyway (12), described lock core cover (2) has the second annular keyway (21), the corresponding described first annular keyway (12) of described lock shell (3), the second annular keyway (21) two not homonymy have unidirectional keyhole (32), in described unidirectional keyhole (32), connecting key (4) is installed.

6. theftproof lock as claimed in claim 5, is characterized in that: the width of first and second annular keyway described is greater than the diameter of described connecting key (4).