CN203285155U - Anti-theft lock capable of resisting technical unlocking - Google Patents
Anti-theft lock capable of resisting technical unlocking Download PDFInfo
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- CN203285155U CN203285155U CN2013201367396U CN201320136739U CN203285155U CN 203285155 U CN203285155 U CN 203285155U CN 2013201367396 U CN2013201367396 U CN 2013201367396U CN 201320136739 U CN201320136739 U CN 201320136739U CN 203285155 U CN203285155 U CN 203285155U
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Abstract
The utility model relates to an anti-theft lock capable of resisting technical unlocking. A plurality of inner marble through holes are formed in the inner wall of one side of a keyhole of the anti-theft lock, an inner marble is arranged in each inner marble through hole, a groove is formed in the inner wall of the other side of the keyhole, and the groove is large enough to contain circular cones of all the inner marbles so that the circular cones of all the inner marbles which fall into the groove after a key is pulled out can be protected. The length of at least one inner marble is set to be equal to the straight distance between the outer hole edges of the inner marble through holes of a lock cylinder and the rear wall of the groove, meanwhile, a counter bore, corresponding to each inner marble, of the front face of the key is set to be a through holes so that the head portion of each inner marble can penetrate through the through hole in the key to abut against the outer wall of the groove and the rear end of the marble can be flush with the outer hole edges of the inner marble through holes in the lock cylinder when the key is inserted in place. A protruding sliding bar which is matched with the groove is arranged on the back face of the key. According to the anti-theft lock capable of resisting technical unlocking, the technical difficulty of unlocking a tin tumbler lock is increased, and the anti-theft performance of the anti-theft lock capable of resisting technical unlocking is improved.
Description
Technical field
The utility model relates to lockset, is specifically related to a kind of theftproof lock and key thereof of anti-technical unlocking.
Background technology
Common cylinder lock forms by lock body, lock core and key, and lock has lock core hole with it, and lock core is set in lock core hole, has keyhole on lock core, grafting key in keyhole.Have somely to marble hole with it at lock core and lock, be placed with interior pellet, outer pellet and spring in marble hole.Interior marble hole on lock core communicates with keyhole, and interior pellet enters in keyhole under the tension force effect of spring.Interior pellet be different in size and front end with cone headed cylinder.One side panel of key is provided with the different teeth groove of height or deep mixed groove, with correspondence interior pellet different in size.
While unblanking, key is inserted keyhole, in press on the key top, the nose cone of pellet front end, retreat interior pellet, by interior pellet extrusion spring, outer pellet hindered outside lock core.When key was plugged fully, interior pellet was under the effect of spring, and the nose cone of its front end enters in corresponding on the key teeth groove or groove, and at this moment, the rear end of interior pellet is just concordant with the outer aperture edge of interior marble hole.The twisting key, just can rotational lock core, thereby drives the dead bolt rotation that is attached thereto, and will lock unlatching., if insert an other key,, because distribution and the shape of teeth groove or groove are inconsistent, cause the aperture that in some, pellet exposes interior marble hole, perhaps reentrant orifice, as long as have an interior pellet to expose or be recessed into, just being stuck, lock core can not rotate, just can not unblank.
The performance of the anti-technical unlocking of this class cylinder lock is not high, easily by iron wire or some special instruments, pellet in it is pushed enable possition one by one, thereby in the situation that need not key by pirate of the open.
The utility model content
The utility model provides a kind of theftproof lock of anti-technical unlocking, is intended to improve the performance of the anti-technical unlocking of existing cylinder lock.
The utility model has taked following technical scheme to realize above-mentioned purpose:
A kind of theftproof lock of anti-technical unlocking, comprise lock core and key; Described lock core is provided with a keyhole, and a side inwall of described keyhole has a plurality of interior pellet through holes, is provided with an interior pellet in described interior pellet through hole, and spring length differs but all with a nose cone in each; The front of described key is provided with a pair of counterbore of joining of a plurality of and described interior pellet one; The opposite side inwall of described keyhole is provided with groove one, and this groove is enough to the nose cone of accommodating all described interior pellets, key is pulled out rear falling the after rise fully to the nose cone of pellet in all in this groove, forms protection.
Further, the length of at least one described interior pellet is made as the outer aperture edge that equals described interior pellet through hole to the air line distance between the rear wall of described groove, simultaneously, the positive counterbore corresponding with being somebody's turn to do interior pellet of described key is made as through hole, so that key inserts while putting in place, should in the head of pellet pass on the key through hole and the rear wall butt of described groove, the outer aperture edge maintenance of the interior pellet through hole on its rear end and lock core flushes.
Further, the back side of described key is provided with the protruding draw runner that is harmonious with described groove.
The beneficial effects of the utility model are: the utility model is provided with comparatively narrow together groove at the keyhole inwall, after key is extracted, all in the head of pellets all can fall back to this groove bottom land fully, by three of groove surround; Simultaneously, the utility model has the length of one or more interior pellets to be made as to equal the outer aperture edge of interior pellet through hole to the distance between described groove rear wall, even there is the technical unlocking instrument to insert from groove reluctantly, instrument itself exists thickness also must make the rear end of the interior pellet of above-mentioned length expose the outer aperture edge of interior pellet through hole, cause lock core by should in pellet stuck and can't rotate.Because above-mentioned groove and interior pellet have protected the head of pellet in other by stressed, not stirred, thereby increase the difficulty of technical unlocking, improved theftproof performance.
Description of drawings
Fig. 1 is the general structure generalized section of the utility model embodiment 1
Fig. 2 is the explosive view of Fig. 1
Fig. 3 is the lock core structure schematic diagram of the utility model embodiment 1
Fig. 4 is the horizontal section schematic diagram of key in the utility model embodiment 1
Fig. 5 is the general structure generalized section of the utility model embodiment 2
Fig. 6 is the explosive view of Fig. 5
Fig. 7 is the lock core structure schematic diagram of the utility model embodiment 2
Fig. 8 is the horizontal section schematic diagram of key in the utility model embodiment 2
Fig. 9 is the lock core structure schematic diagram of the utility model embodiment 3
Figure 10 is the horizontal section schematic diagram of key in the utility model embodiment 3
Figure 11 is the lock core structure schematic diagram of the utility model embodiment 4
Figure 12 is the horizontal section schematic diagram of key in the utility model embodiment 4
Figure 13 is the lock core structure schematic diagram of the utility model embodiment 5
Figure 14 is the horizontal section schematic diagram of key in the utility model embodiment 5
Be labeled as in figure: 1, lock core, 2, key, 3, keyhole, 4a, the first interior pellet through hole,
4b, the second interior pellet through hole, 4c, the 3rd interior pellet through hole, 4d, the 4th interior pellet through hole, 4e, the 5th interior pellet through hole, 4f, the 6th interior pellet through hole, 5a, the first interior pellet, 5b, the second interior pellet, 5c, the 3rd interior pellet, 5d, the 4th interior pellet, 5e, the 5th interior pellet, 5f, the 6th interior pellet, 6a, the first counterbore, 6b, the second counterbore, 6c, the 3rd counterbore, 6d, the 4th counterbore, 6e, the 5th counterbore, 6f, the 6th counterbore, 7, groove, 21, protruding draw runner.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Embodiment 1
Only have the length of an interior pellet to be made as the outer aperture edge of the interior pellet through hole that equals its place to the air line distance between described groove rear wall in the present embodiment.
With reference to Fig. 1-4:
A kind of theftproof lock of anti-technical unlocking, comprise lock core 1 and key 2; Lock core 1 is provided with a keyhole 3, and a side inwall of described keyhole 3 has first to the 6th interior pellet through hole 4a-4f, is respectively arranged with first to the 6th interior pellet 5a-5f in first to the 6th interior pellet through hole 4a-4f;
The length of first to the 6th interior pellet 5a-5f differs, but all with a nose cone; The front of key 2 is provided with first to the 6th counterbore 6a-6f, with described first to the 6th interior pellet 5a-5f, is complementary;
The opposite side inwall of keyhole 3 is provided with groove 7 one, and this groove 7 is enough to the nose cone of accommodating interior pellet 5a-5f, key 2 is pulled out rear falling the after rise fully to the nose cone of the interior interior pellet 5a-5f of this groove 7, forms and protects.
The length of the first interior pellet 5a is made as the outer aperture edge of the first interior pellet through hole 4a to the air line distance between the rear wall of groove 7, simultaneously, the first counterbore 6a on key 2 is made as a through hole.
The back side of key 2 is provided with the protruding draw runner 21 that is harmonious with groove 7.
The operating principle of the present embodiment is: lock be opened, only have and adopt the key 2 that is provided with first to the 6th counterbore 6a-6f, just the rear portion of first to the 6th interior pellet 5a-5f could be pushed into and flush with the outer aperture edge of first to the 6th interior pellet through hole 4a-4f respectively, thereby twisting lock core 1 is opened lock; If technical unlocking instrument; because groove 7 is protected the nose cone of first to the 6th interior pellet 5a-5f part fully; the technical unlocking instrument can not be provoked pellet from the reinforcing of interior pellet head; and; because the length of the first interior pellet 5a just in time equals the outer aperture edge of the first interior pellet through hole 4a to the distance between groove 7 rear walls; and the technical unlocking instrument itself has certain thickness, and this just means that the pirate of the open instrument can't be transferred to lockset position of coupler with the first interior pellet 5a all the time.
There is the length of two interior pellets to be made as the outer aperture edge of the interior pellet through hole that equals its place to the air line distance between the rear wall of described groove in the present embodiment.
With reference to Fig. 5-8:
A kind of theftproof lock of anti-technical unlocking, comprise lock core 1 and key 2; Lock core 1 is provided with a keyhole 3, and a side inwall of described keyhole 3 has first to the 6th interior pellet through hole 4a-4f, is respectively arranged with first to the 6th interior pellet 5a-5f in first to the 6th interior pellet through hole 4a-4f;
The length of first to the 6th interior pellet 5a-5f differs, but all with a nose cone; The front of key 2 is provided with first to the 6th counterbore 6a-6f, with described first to the 6th interior pellet 5a-5f, is complementary;
The opposite side inwall of keyhole 3 is provided with groove 7 one, and this groove 7 is enough to the nose cone of accommodating interior pellet 5a-5f, key 2 is pulled out rear falling the after rise fully to the nose cone of the interior interior pellet 5a-5f of this groove 7, forms and protects;
The length of the first interior pellet 5a is made as the outer aperture edge of the first interior pellet through hole 4a to the distance between groove 7 rear walls, the length of the 4th interior pellet 5d is made as the outer aperture edge of the 4th interior pellet through hole 4d to the distance between groove 7 rear walls, simultaneously, the first counterbore 6a on key 2, the 4th counterbore 6d all are made as through hole.
The back side of key 2 is provided with the protruding draw runner 21 that is harmonious with groove 7.
the operating principle of the present embodiment is: lock be opened, by the key 2 that is provided with first to the 6th counterbore 6a-6f, just the rear portion of first to the 6th interior pellet 5a-5f could be pushed into and flush with the outer aperture edge of first to the 6th interior pellet through hole 4a-4f respectively, thereby twisting lock core 1 is opened lock, if technical unlocking instrument, because groove 7 is protected the nose cone of first to the 6th interior pellet 5a-5f part fully, the technical unlocking instrument can not be provoked pellet from the reinforcing of pellet head, and, because the length of the first interior pellet 5a just in time equals the outer aperture edge of the first interior pellet through hole 4a to the distance between the rear wall of groove 7, the length of the 4th interior pellet 5a just in time equals the outer aperture edge of the first interior pellet through hole 4d to the distance between the rear wall of groove 7, and the technical unlocking instrument itself has certain thickness, this just means all the time can't be with the first interior pellet 5a, 5d is transferred to lockset position of coupler.
With reference to Fig. 9 and Figure 10:
In the present embodiment, the cross section of keyhole 3 and key 2 is T-shaped, and the remainder structure is identical with embodiment 1 or embodiment 2, so its operating principle is also identical with embodiment 1 or embodiment 2.
With reference to Figure 11 and Figure 12:
In the present embodiment, keyhole 3 is the C type with the cross section of key 2, and the remainder structure is identical with embodiment 1 or embodiment 2, so its operating principle is also identical with embodiment 1 or embodiment 2.
Embodiment 5
With reference to Figure 13 and Figure 14:
In the present embodiment, keyhole 3 is " ten " font with the cross section of key 2, and the remainder structure is identical with embodiment 1 or embodiment 2, so its operating principle is also identical with embodiment 1 or embodiment 2.
Claims (3)
1. the theftproof lock of an anti-technical unlocking, comprise lock core and key; Described lock core is provided with a keyhole, and a side inwall of described keyhole has a plurality of interior pellet through holes, is provided with an interior pellet in described interior pellet through hole, and spring length differs but all with a nose cone in each; The front of described key is provided with a pair of counterbore of joining of a plurality of and described interior pellet one; it is characterized in that; the opposite side inwall of described keyhole is provided with groove one; this groove is enough to the nose cone of accommodating all described interior pellets, key is pulled out rear falling the after rise fully to the nose cone of pellet in all in this groove, forms protection.
2. the theftproof lock of a kind of anti-technical unlocking according to claim 1, it is characterized in that, the length of at least one described interior pellet is made as the outer aperture edge that equals described interior pellet through hole to the air line distance between the rear wall of described groove, simultaneously, the positive counterbore corresponding with being somebody's turn to do interior pellet of described key is made as through hole, so that key inserts while putting in place, should in the head of pellet pass on the key through hole and the rear wall butt of described groove, the outer aperture edge maintenance of the interior pellet through hole on its rear end and lock core flushes.
3. the theftproof lock of a kind of anti-technical unlocking according to claim 1 and 2, is characterized in that, the back side of described key is provided with the protruding draw runner that is harmonious with described groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201367396U CN203285155U (en) | 2013-03-22 | 2013-03-22 | Anti-theft lock capable of resisting technical unlocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201367396U CN203285155U (en) | 2013-03-22 | 2013-03-22 | Anti-theft lock capable of resisting technical unlocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203285155U true CN203285155U (en) | 2013-11-13 |
Family
ID=49541526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201367396U Expired - Fee Related CN203285155U (en) | 2013-03-22 | 2013-03-22 | Anti-theft lock capable of resisting technical unlocking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203285155U (en) |
-
2013
- 2013-03-22 CN CN2013201367396U patent/CN203285155U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131113 Termination date: 20150322 |
|
| EXPY | Termination of patent right or utility model |