CN2630404Y

CN2630404Y - Antitheft lock

Info

Publication number: CN2630404Y
Application number: CN 03249252
Authority: CN
Inventors: 王军
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-27
Filing date: 2003-06-27
Publication date: 2004-08-04
Anticipated expiration: 2013-06-27

Abstract

The utility model discloses an anti-theft lock, which comprises a lock body, a lock core, an adjusting slip, a spring and a key. The key comprises an outer key and an inner key, which match with each other in length. The inner key is arranged in the lock hole and coordinates with the hole by mutually sliding. Both the inner key and the outer key are provided with a rake groove matching with the spring. A resetting device is arranged between the inner key and the outer key. As the lock can only be unlocked with the inner key and the outer key at the same time, the inner key must be put in the right place in order to unlock the lock if the outer key is unavailable, and then the spring matching with the outer key must be inserted properly, which is very difficult. With the effect of resetting device, the inner key deviates from the normal position for unlocking the lock, and thus the displacement amount for putting the inner key to the right place can not be obtained. Thus, the utility model is high safe, has simple structure, reduces the length and volume of the outer key while improving the safety and is easy to be carried and used.

Description

Theftproof lock

Technical field

The utility model relates to a kind of anti-theft safety device, especially a kind of theftproof lock.

Background technology

At present, by continuous renewal, the safety of traditional cylinder lock constantly improves, but the present means of unblanking also are to constantly update, emerge in an endless stream.In order to improve the safety of traditional cylinder lock, to increase antitheft function, generally all are the row's numbers that increase the key teeth groove, be increased to two present toothrows, three toothrows and four toothrows by the monorow tooth of traditional cylinder lock.But in the theftproof performance that increases lock, equally also brought the complex structure of lock, made and use inconvenience, also made the volume of key and the deficiency that length increases, brought great inconvenience for carrying of user.In addition, above anti-theft measure does not fundamentally solve the safety defect of traditional cylinder lock, promptly still might will lock unlatching under without the situation of key by stir pellet shot from a slingshot from lockhole, and its safety is still not high.

The utility model content

For it is not high to overcome existing antitheft sylinder safety, baroque deficiency, the utility model provides key and outer key in a kind of being provided with, just and the length of interior key and outer key must be complementary and can lock the theftproof lock of unlatching.

The technical scheme that its technical problem that solves the utility model adopts is: theftproof lock comprises lock body, lock core, plectrum, pellet shot from a slingshot and key, described key is made of interior key and outer key, interior key is complementary with the length of outer key, interior key is arranged in the lockhole and is slidingly matched mutually, interior key and be provided with the teeth groove adaptive with pellet shot from a slingshot on the key outward is provided with resetting means between interior key and the lockhole.

The beneficial effects of the utility model are, since adopted by outer key will be arranged on interior key in the lockhole head into and make in key and outer key put in place simultaneously could the lock unlatching mode, making does not need under the situation of outer key interior key is delivered to the position having, and stir the pellet shot from a slingshot that cooperates with outer key and put in place, the possibility that lock is opened is just arranged, thereby operate extremely difficult, so antitheft better performances.Under the effect of resetting means, interior key is at ordinary times and departs from normal lockset position of coupler, thereby there is no telling is delivered to the needed displacement in position with interior key, so its security performance is high and simple in structure, the length and the volume of key are easy to carry and use outside can also reducing when increasing safety.

Description of drawings

Fig. 1 is the schematic diagram of the utility model when not inserting key.

Fig. 2 is the schematic diagram after the utility model inserts key.

The specific embodiment

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

As shown in Figure 1 and Figure 2, theftproof lock of the present utility model comprises lock body 1, lock core 2, plectrum 3, pellet shot from a slingshot 4 and key 5, and key 5 is made of interior key 6 and outer key 7, and plectrum 3 is connected on the lock core 2.Interior key 6 is complementary with the length of outer key 7, interior key 6 is arranged in the lockhole 20 and is slidingly matched mutually, be provided with the teeth groove 11 adaptive on interior key 6 and the outer key 7 with pellet shot from a slingshot 4, be provided with resetting means 8 between interior key 6 and the lockhole 20, spring or reed in resetting means 8 can be arranged between the surface of key 6 and lockhole 20, for example, in can being arranged between the periphery surface of key 6 and lockhole 20 sides or between the bottom surface 9 and interior key 6 of lockhole 20, that is: so long as be in when key 6 is flat in making and depart from normal lockset position of coupler and get final product, and the outer face 10 of interior key 6 and the head end 21 of outer key 7 keep in touch when outer key 7 is inserted.Because under the effect of resetting means, interior key 6 is in when flat and departs from normal lockset position of coupler, have only when outer key 7 will be arranged on interior key 6 in the lockhole 20 head into and make in key 6 with outside key 7 when putting in place simultaneously, pellet shot from a slingshot 4 adaptive teeth groove 11 are shifted each row's pellet shot from a slingshot onto position that lock core 2 is rotated, lock could be opened, key 6 must be complementary with the length of outer key 7 promptly, and interior key 6 can have a lot of different combinations with outer key 7 length separately.That is to say that interior key that length is complementary 6 just can work as outer key 7 insertions with outer key 7 and when putting in place, its interior key 6 just is sent to the position.For further increasing safety, the distance that pushes of key 6 is difficult for measured in making, adaptive concave surface and convex surface, for example conical surface, sphere, irregular curved surface or ladder table top etc. mutually can also be made with the head end 21 of outer key 7 in the outer face 10 of interior key 6.When opening the lock with the key, outer key 7 inserts, and the outer face 10 of interior key 6 contacts with the head end 21 of outer key 7 and interior key 6 is headed into the normal lockset position of coupler of arrival, rotates outer key and can drive lock core and rotate and lock is opened.

Embodiment 1: theftproof lock of the present utility model comprises lock body 1, lock core 2, plectrum 3, pellet shot from a slingshot 4 and key 5, and key 5 is made of interior key 6 and outer key 7, and plectrum 3 is connected on the lock core 2.Interior key 6 is complementary with the length of outer key 7, interior key 6 is arranged in the lockhole 20 and is slidingly matched mutually, be provided with the teeth groove 11 adaptive on interior key 6 and the outer key 7 with pellet shot from a slingshot 4, be provided with resetting means 8 one springs between the bottom surface 9 of lockhole 20 and the interior key 6, be in when key 6 is flat in making and depart from normal lockset position of coupler.Because under the effect of resetting means, interior key 6 is in when flat and departs from normal lockset position of coupler, have only when outer key 7 that length is complementary will be arranged on interior key 6 in the lockhole 20 head into and make in key 6 with outside key 7 when putting in place simultaneously, shift each row's pellet shot from a slingshot onto position that lock core 2 is rotated with the teeth groove 11 that pellet shot from a slingshot 4 is adaptive, could open by lock.Be the further safety that increases, make that pushing of interior key 6 is measured apart from being difficult for, the outer face 10 of interior key 6 and the head end 21 of outer key 7 are made the concave surface and the convex surface of adaptive mutually irregular curved surface.When opening the lock with the key, outer key 7 inserts, and the outer face 10 of interior key 6 contacts with the head end 21 of outer key 7 and interior key 6 is headed into the normal lockset position of coupler of arrival, rotates outer key and can drive lock core and rotate and lock is opened.

Embodiment 2: the another kind of embodiment of theftproof lock of the present utility model is substantially the same manner as Example 1, different is, for key 6 in not making skids off from lockhole, and lockhole 20 is made step-like two sections, that is: lockhole 20 comprises interior lockhole 12 and the exterior lockhole 13 that connects bottom surface 9 and front 14, the outer end of interior lockhole 12 is provided with baffle plate 15 and forms bottom surface 9, and plectrum 3 is connected on the lock core 2 by baffle plate 15.Interior key 6 is slidingly matched with interior lockhole 12, and outer key 7 is suitable with exterior lockhole 13, and the size of interior lockhole 12 is greater than the size of exterior lockhole 13.The bottom surface 9 that baffle plate 15 forms heads into interior key 6 by spring, and make when not having outer key to insert, the outer of interior key 6 outer faces 10 contacts all the time with the step surface 16 in two-phase lock hole.

Claims

1, theftproof lock, comprise lock body (1), lock core (2), plectrum (3), pellet shot from a slingshot (4) and key (5), it is characterized in that: described key (5) is made of interior key (6) and outer key (7), interior key (6) is complementary with the length of outer key (7), interior key (6) is arranged in the lockhole (20) and is slidingly matched mutually, be provided with on interior key (6) and the outer key (7) and the adaptive teeth groove (11) of pellet shot from a slingshot (4), be provided with resetting means (8) between interior key (6) and the lockhole (20).

2, theftproof lock as claimed in claim 1 is characterized in that: described resetting means (8) is for being arranged on spring or the reed between interior key (6) and the lockhole (20).

3, theftproof lock as claimed in claim 2 is characterized in that: described resetting means (8) is arranged between the bottom surface (9) and interior key (6) of lockhole (20).

4, theftproof lock as claimed in claim 1 is characterized in that: the outer face (10) of key (6) is mutual adaptive concave surface and convex surface with the head end (21) of outer key (7) in described.

5, theftproof lock as claimed in claim 4 is characterized in that: described adaptive concave surface and convex surface mutually is the conical surface, sphere, irregular curved surface or ladder table top.

6, theftproof lock as claimed in claim 1, it is characterized in that: described lockhole (20) comprises interior lockhole (12) and the exterior lockhole (13) that connects bottom surface (9) and front (14), the outer end of interior lockhole (12) is provided with baffle plate (15) and forms bottom surface (9), interior key (6) is slidingly matched with interior lockhole (12), outer key (7) is suitable with exterior lockhole (13), the size of interior lockhole (12) is greater than the size of exterior lockhole (13), and the outer of the outer face (10) of interior key (6) contacts with the step surface (16) of interior lockhole (12) with exterior lockhole (13) handing-over.