CN209924632U - Anti-theft lock and matched special key - Google Patents
Anti-theft lock and matched special key Download PDFInfo
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- CN209924632U CN209924632U CN201920336072.1U CN201920336072U CN209924632U CN 209924632 U CN209924632 U CN 209924632U CN 201920336072 U CN201920336072 U CN 201920336072U CN 209924632 U CN209924632 U CN 209924632U
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Abstract
The anti-theft lock head comprises a lock cylinder sleeve, a lock cylinder and a return component; in a locked state, the contact surfaces of the upper half round head marble and the upper flat head marble are staggered with the hole wall surface of the lock cylinder hole, the contact surfaces of the left flat head marble and the left half round head marble are flush with the hole wall surface of the lock cylinder hole, and the contact surfaces of the right flat head marble and the right half round head marble are flush with the hole wall surface of the lock cylinder hole. The special key comprises a key body, wherein the key body comprises a tooth flower part and a handle part connected to one end of the tooth flower part, and hollow holes are formed in the tooth flower part. The utility model has the advantages that, after the foreign matter inserted the key hole of lock core, must open left and right half round head pellet shot from a slingshot, make the contact surface and the lock core hole wall of left crew cut pellet shot from a slingshot and left half round head pellet shot from a slingshot stagger, the contact surface and the lock core hole wall of right crew cut pellet shot from a slingshot and right half round head pellet shot from a slingshot stagger, no matter how debugging of foreign matter at this moment, the lock core is in the blocking state all the time, and the theftproof performance is good.
Description
Technical Field
The utility model relates to a head-contracting component of a spring lock, in particular to an anti-theft lock head and a matched special key.
Background
The patent number ZL 201510576134.2's utility model patent discloses a pickproof lock tapered end, and it includes lock core cover, lock core and return means.
The lock core is provided with a key slot, an inner spring hole, a left inner mounting hole and a right inner mounting hole. The inner pin tumbler hole is communicated with the key slot from the outer surface of the lock cylinder, the left inner mounting hole and the right inner mounting hole are symmetrically arranged on two sides of the inner pin tumbler hole and are communicated with the outer surface of the lock cylinder from the intersection of the inner pin tumbler hole and the key slot respectively.
The lock cylinder sleeve is provided with a lock cylinder hole, an outer spring hole, a left outer mounting hole and a right outer mounting hole, and the outer spring hole, the left outer mounting hole and the right outer mounting hole correspond to the inner spring hole, the left inner mounting hole and the right inner mounting hole respectively. The outer spring hole, the left outer mounting hole and the right outer mounting hole are all communicated with the lock cylinder hole from the outer surface of the lock cylinder sleeve.
The lock core is arranged in a lock core hole on the lock core sleeve, and the lock core can rotate in the lock core hole. In a locked state, the inner ball hole is communicated with the outer ball hole, the left inner mounting hole is communicated with the left outer mounting hole, the right inner mounting hole is communicated with the right outer mounting hole, the outer ball hole and the inner ball hole are sequentially provided with an upper spring, an upper flat-head ball and an upper half round-head ball, and the outer ball hole is sealed through a plug.
The return device comprises a left spring, a left flat head marble and a left half round head marble which are sequentially arranged in the left inner mounting hole and the left outer mounting hole, and a right spring, a right flat head marble and a right half round head marble which are symmetrically arranged in the right inner mounting hole and the right outer mounting hole, and the left outer mounting hole and the right outer mounting hole are sealed through plugs.
In a locked state, the left half round head marble and the right half round head marble respectively push the upper half round head marble under the action of the left spring and the right spring in a combined force manner, so that the contact surfaces of the upper half round head marble and the upper flat head marble are staggered with the hole wall surface of the lock cylinder hole. Under the locking state, the contact surface of the left flat head marble and the left half head marble is staggered with the wall surface of the hole of the lock cylinder. The contact surface of the right flat head marble and the right half round head marble is staggered with the wall surface of the hole of the lock cylinder.
In an unlocking state, the left half round head marble and the right half round head marble are extruded by the key and respectively retract into the left inner mounting hole and the right inner mounting hole, and the upper half round head marble is lifted up or falls down along with the tooth pattern of the key. At the moment, the contact surface of the left flat-head marble and the left half round-head marble is flush with the wall surface of the hole of the lock cylinder, and the contact surface of the right flat-head marble and the right half round-head marble is flush with the wall surface of the hole of the lock cylinder. The contact surface of the upper half round head marble and the upper flat head marble is parallel and level with the wall surface of the hole of the lock cylinder. The lock core can be driven by the key to rotate in the lock core hole.
The anti-theft lock head has the following defects: in a locked state, the left half round head marble and the right half round head marble are respectively arranged in the lock core, so that a certain moving space is provided for foreign matters after being inserted into the key hole.
After the foreign matter is inserted into the key hole of the lock cylinder, the end surfaces of the left half round head marble and the right half round head marble are possibly aligned with the wall surface of the lock cylinder hole respectively through debugging and poking, so that the lock is opened, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, and provide a theftproof tapered end, it has solved current pickproof lock tapered end and has had certain activity space behind the key hole that the lock core was inserted to the foreign matter, and then has certain probability of unblanking, has the problem of potential safety hazard.
The technical scheme of the utility model is that: the anti-theft lock head comprises a lock cylinder sleeve, a lock cylinder and a return component;
the lock core is provided with a key slot, an inner spring hole, a left inner mounting hole and a right inner mounting hole; the inner pin tumbler hole is communicated to the key slot from the outer surface of the lock cylinder, the left inner mounting hole and the right inner mounting hole are symmetrically arranged on two sides of the inner pin tumbler hole and are respectively communicated to the outer surface of the lock cylinder from the intersection of the inner pin tumbler hole and the key slot;
the lock cylinder sleeve is provided with a lock cylinder hole, an outer spring hole, a left outer mounting hole and a right outer mounting hole, and the outer spring hole, the left outer mounting hole and the right outer mounting hole respectively correspond to the inner spring hole, the left inner mounting hole and the right inner mounting hole; the outer spring hole, the left outer mounting hole and the right outer mounting hole are all communicated to the lock cylinder hole from the outer surface of the lock cylinder sleeve;
the lock core is arranged in a lock core hole on the lock core sleeve, and the lock core can rotate in the lock core hole; in a locking state, the inner ball hole is communicated with the outer ball hole, the left inner mounting hole is communicated with the left outer mounting hole, and the right inner mounting hole is communicated with the right outer mounting hole;
the return component comprises an upper plug, an upper spring, an upper flat head marble and an upper semi-round head marble which are sequentially arranged in the outer marble hole and the inner marble hole from outside to inside; the left plug, the left spring, the left flat head marble and the left half-round head marble are sequentially arranged in the left inner mounting hole and the left outer mounting hole from outside to inside; the right plug, the right spring, the right flat head marble and the right half round head marble are sequentially and symmetrically arranged in the right inner mounting hole and the right outer mounting hole from outside to inside;
in a locked state, the left half round head marble and the right half round head marble respectively push the upper half round head marble in a combined force under the action of the left spring and the right spring so that the contact surfaces of the upper half round head marble and the upper flat head marble are staggered with the hole wall surface of the lock cylinder hole, the contact surfaces of the left flat head marble and the left half round head marble are flush with the hole wall surface of the lock cylinder hole, and the contact surfaces of the right flat head marble and the right half round head marble are flush with the hole wall surface of the lock cylinder hole.
The technical scheme of the utility model is that: the special key applied to the anti-theft lock head comprises a key body, wherein the key body comprises a tooth part and a handle part connected to one end of the tooth part, the edge of the tooth part is provided with a tooth matched with the upper semi-round head marble, the tooth part is provided with a hollow hole, and the hollow hole penetrates through the end surfaces of two sides of the tooth part;
when the tooth pattern part of the key body is completely inserted into the key groove of the lock core (namely in an unlocking state), the upper half round head marble is contacted with the tooth pattern, so that the contact surface of the upper half round head marble and the upper flat head marble is parallel and level to the wall surface of the hole of the lock core; and the left half round head marble and the right half round head marble are contacted through the hollow hole, so that the contact surface of the left flat head marble and the left half round head marble is kept to be flush with the wall surface of the lock cylinder hole, and the contact surface of the right flat head marble and the right half round head marble is kept to be flush with the wall surface of the lock cylinder hole.
The utility model discloses further technical scheme is: the hollow hole is in a strip shape, a plurality of sections of guide surfaces are arranged on one side edge along the length direction, and the guide surfaces are inclined surfaces or cambered surfaces
Compared with the prior art, the utility model have following advantage:
after foreign matters are inserted into a key hole of the lock cylinder, the left half round head marble and the right half round head marble are ejected inevitably, so that the contact surface of the left flat head marble and the left half round head marble is staggered with the wall surface of the hole of the lock cylinder, the contact surface of the right flat head marble and the right half round head marble is staggered with the wall surface of the hole of the lock cylinder, and the lock cylinder is always in a locking state no matter how the foreign matters are debugged, and the anti-theft performance is good.
After the special key is inserted into the key hole of the lock core, the left and right half round-head marbles still keep the original positions through the hollow holes on the tooth flower parts, namely, the special key can not jack the left and right half round-head marbles, and only can jack or fall the end surface of the upper half round-head marbles to the position of the wall surface of the hole of the lock core, so that the lock can be normally unlocked.
The invention is further described below with reference to the figures and examples.
Drawings
Fig. 1 is a schematic structural view of the present invention in a locked state;
FIG. 2 is a schematic structural view of the present invention in a foreign matter unlocking state;
FIG. 3 is a schematic structural view of the present invention in an unlocked state with a special key;
FIG. 4 is a schematic view of a special key;
fig. 5 is a sectional view a-a of fig. 4.
Detailed Description
Example 1:
as shown in fig. 1-3, the anti-theft lock head comprises a lock core 1, a lock core sleeve 2 and a return component.
The lock core 1 is provided with a key slot 11, an inner spring hole, a left inner mounting hole and a right inner mounting hole; the left inner mounting hole and the right inner mounting hole are symmetrically arranged on two sides of the inner bullet hole.
The lock cylinder sleeve 2 is provided with a lock cylinder hole, an outer spring hole, a left outer mounting hole and a right outer mounting hole, and the outer spring hole, the left outer mounting hole and the right outer mounting hole are respectively corresponding to the inner spring hole, the left inner mounting hole and the right inner mounting hole.
The lock cylinder 1 is installed in a cylinder hole of the cylinder sleeve 2 and can rotate in the cylinder hole. Under the locking state, the inner ball hole is communicated with the outer ball hole, the left inner mounting hole is communicated with the left outer mounting hole, and the right inner mounting hole is communicated with the right outer mounting hole.
The return component comprises an upper plug 31, an upper spring, an upper flat head marble 32 and an upper semi-round head marble 33 which are sequentially arranged in an outer marble hole and an inner marble hole from outside to inside. The left plug 34, the left spring, the left flat head marble 35 and the left half round head marble 36 are sequentially arranged in the left inner mounting hole and the left outer mounting hole from outside to inside. The spring also comprises a right plug 37, a right spring, a right flat head marble 38 and a right half round head marble 39 which are symmetrically arranged in the right inner mounting hole and the right outer mounting hole in sequence from outside to inside.
In a closed state, the contact surfaces of the upper half round head marble 33 and the upper half round head marble 32 are staggered with the hole wall surface of the lock cylinder hole, the contact surfaces of the left half round head marble 35 and the left half round head marble 36 are flush with the hole wall surface of the lock cylinder hole, the contact surfaces of the right half round head marble 38 and the right half round head marble 39 are flush with the hole wall surface of the lock cylinder hole, and the left half round head marble 36 and the right half round head marble 39 are in contact.
As shown in fig. 4-5, the special key applied to the anti-theft lock head includes a key body, the key body includes a tooth portion 41 and a handle portion 42 connected to one end of the tooth portion 41, a tooth 411 matched with the upper half round head marble 33 is disposed at an edge of the tooth portion 41, a hollow hole 412 is disposed on the tooth portion 41, and the hollow hole 412 penetrates through end faces of two sides of the tooth portion 41.
When the flower portion 41 of the mating key body is completely inserted into the key groove 11 of the key cylinder 1 (i.e., in the unlocked state), the upper half round head pins 33 contact the flower 411, so that the contact surfaces of the upper half round head pins 33 and the upper half round head pins 32 are flush with the wall surface of the key cylinder hole, and the left half round head pins 36 and the right half round head pins 39 contact through the hollow holes 412, so that the contact surfaces of the left half round head pins 35 and the left half round head pins 36 are kept flush with the wall surface of the key cylinder hole, and the contact surfaces of the right half round head pins 38 and the right half round head pins 39 are kept flush with the wall surface of the key cylinder hole.
Preferably, the hollow hole 412 is a long strip, and a plurality of guide surfaces are arranged on one side edge along the length direction, and each guide surface is an inclined surface or an arc surface. The function of the guiding surface is convenient for the tooth pattern part 41 of the key body to be smoothly inserted into the key slot 11 of the lock core 1 and not to be clamped by the left round head marble and the right round head marble.
Brief description the utility model discloses an use:
as shown in fig. 2, after the foreign matter 5 is inserted into the key hole of the lock cylinder, the left and right half round head marbles are inevitably pushed open, so that the contact surfaces of the left flat head marbles and the left half round head marbles are staggered with the wall surface of the lock cylinder hole, the contact surfaces of the right flat head marbles and the right half round head marbles are staggered with the wall surface of the lock cylinder hole, and at this time, no matter how the foreign matter is debugged, the lock cylinder is always in a locking state, and the anti-theft performance is good.
As shown in fig. 3, after the tooth portion 41 of the matched key body is inserted into the key hole of the lock cylinder, the left and right round-head pins still keep the original positions through the hollow holes on the tooth portion, that is, the tooth portion will not push the left and right round-head pins open, and only will push up or drop the end surface of the upper round-head pin to the position of the wall surface of the lock cylinder hole, so that the lock can be normally unlocked.
Claims (3)
1. The anti-theft lock head comprises a lock cylinder sleeve, a lock cylinder and a return component;
the lock core is provided with a key slot, an inner spring hole, a left inner mounting hole and a right inner mounting hole; the left inner mounting hole and the right inner mounting hole are symmetrically arranged on two sides of the inner bullet hole;
the lock cylinder sleeve is provided with a lock cylinder hole, an outer spring hole, a left outer mounting hole and a right outer mounting hole, and the outer spring hole, the left outer mounting hole and the right outer mounting hole respectively correspond to the inner spring hole, the left inner mounting hole and the right inner mounting hole;
the lock core is arranged in a lock core hole on the lock core sleeve, and the lock core can rotate in the lock core hole; in a locking state, the inner ball hole is communicated with the outer ball hole, the left inner mounting hole is communicated with the left outer mounting hole, and the right inner mounting hole is communicated with the right outer mounting hole;
the return component comprises an upper plug, an upper spring, an upper flat head marble and an upper semi-round head marble which are sequentially arranged in the outer marble hole and the inner marble hole from outside to inside; the left plug, the left spring, the left flat head marble and the left half-round head marble are sequentially arranged in the left inner mounting hole and the left outer mounting hole from outside to inside; the right plug, the right spring, the right flat head marble and the right half round head marble are sequentially and symmetrically arranged in the right inner mounting hole and the right outer mounting hole from outside to inside;
the method is characterized in that: in a locked state, the contact surfaces of the upper half round head marble and the upper flat head marble are staggered with the hole wall surface of the lock cylinder hole, the contact surfaces of the left flat head marble and the left half round head marble are flush with the hole wall surface of the lock cylinder hole, and the contact surfaces of the right flat head marble and the right half round head marble are flush with the hole wall surface of the lock cylinder hole.
2. The special key is applied to the anti-theft lock head as claimed in claim 1, and is characterized in that: the key comprises a key body, wherein the key body comprises a tooth part and a handle part connected to one end of the tooth part, the edge of the tooth part is provided with a tooth matched with an upper half round head marble, the tooth part is provided with a hollow hole, and the hollow hole penetrates through the end surfaces of two sides of the tooth part;
when the thread pattern part of the key body is completely inserted into the key groove of the lock core, the upper half round head marble is contacted with the thread pattern, so that the contact surface of the upper half round head marble and the upper flat head marble is parallel and level to the hole wall surface of the lock core hole; and the left half round head marble and the right half round head marble are contacted through the hollow hole, so that the contact surface of the left flat head marble and the left half round head marble is kept to be flush with the wall surface of the lock cylinder hole, and the contact surface of the right flat head marble and the right half round head marble is kept to be flush with the wall surface of the lock cylinder hole.
3. The special key as claimed in claim 2, wherein: the hollow hole is in a long strip shape, a plurality of sections of guide surfaces are arranged on one side edge of the hollow hole along the length direction, and the guide surfaces are inclined surfaces or arc surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920336072.1U CN209924632U (en) | 2019-03-18 | 2019-03-18 | Anti-theft lock and matched special key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920336072.1U CN209924632U (en) | 2019-03-18 | 2019-03-18 | Anti-theft lock and matched special key |
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| Publication Number | Publication Date |
|---|---|
| CN209924632U true CN209924632U (en) | 2020-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920336072.1U Active CN209924632U (en) | 2019-03-18 | 2019-03-18 | Anti-theft lock and matched special key |
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| CN (1) | CN209924632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854088A (en) * | 2019-03-18 | 2019-06-07 | 钟积桥 | Anti-theft lock end and matched private key |
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2019
- 2019-03-18 CN CN201920336072.1U patent/CN209924632U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109854088A (en) * | 2019-03-18 | 2019-06-07 | 钟积桥 | Anti-theft lock end and matched private key |
| CN109854088B (en) * | 2019-03-18 | 2023-12-29 | 钟积桥 | Theft-proof lock and matched special key |
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