CN114150936B - Anti-theft structure composed of lock core and key - Google Patents
Anti-theft structure composed of lock core and key Download PDFInfo
- Publication number
- CN114150936B CN114150936B CN202111240379.XA CN202111240379A CN114150936B CN 114150936 B CN114150936 B CN 114150936B CN 202111240379 A CN202111240379 A CN 202111240379A CN 114150936 B CN114150936 B CN 114150936B
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- lock core
- lock
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- groove
- seat
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- 239000011258 core-shell material Substances 0.000 claims abstract description 34
- 230000006835 compression Effects 0.000 claims abstract description 18
- 238000007906 compression Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 6
- 238000003780 insertion Methods 0.000 description 9
- 230000037431 insertion Effects 0.000 description 9
- 125000006850 spacer group Chemical group 0.000 description 6
- 230000000717 retained effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
- E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/08—Key guides; Key pins ; Keyholes; Keyhole finders
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/14—Tumblers
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B19/00—Keys; Accessories therefor
- E05B19/0017—Key profiles
- E05B19/0035—Key profiles characterized by longitudinal bit variations
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B29/00—Cylinder locks and other locks with plate tumblers which are set by pushing the key in
- E05B29/0053—Cylinder locks and other locks with plate tumblers which are set by pushing the key in with increased picking resistance
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Lock And Its Accessories (AREA)
- Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
Abstract
The invention provides an anti-theft structure composed of a lock core and a key, wherein the lock core consists of a lock core seat, a lock core shell, a push sheet, a plurality of locking sheets, a plurality of gaskets, a limiting sheet, a positioning sheet, a detent rod, a brake bolt plate, a compression spring, a positioning baffle and a retaining ring, the push sheet is arranged in a chute on the inner bottom surface of the lock core shell, the locking sheets and the gaskets are staggered and stacked in the lock core shell, the limiting sheet and the positioning sheet are arranged at the outer end part of the lock core shell and are arranged in the lock core seat together with the lock core shell, the brake bolt plate is arranged in a containing groove of the lock core seat, the compression spring is arranged in the groove of the lock core seat, the compression spring pushes the brake bolt plate, the positioning sheet is arranged in the containing chamber of the lock core seat and is arranged at the bottom of the lock core shell, the retaining ring is embedded in the annular groove of the lock core seat, the key is provided with an annular groove, and the key can be inserted into or extracted from the lock core shell incompletely Rotate to achieve the anti-theft effect.
Description
Technical Field
The invention relates to an anti-theft structure composed of a lock core and a key, in particular to an anti-theft structure which is provided with a push plate on the inner bottom surface of a lock core shell and a brake bolt plate in a lock core seat, so that the lock core can not be rotated when the key is not completely inserted into the inner bottom surface of the lock core shell, the best anti-theft effect can be achieved, and a limiting plate is arranged in the lock core seat, so that the key can not be rotated when the key is not completely extracted out of the lock core, the key holes of all lock plates in the lock core can not be disorderly positioned, and the key can be smoothly inserted for use when the key is inserted into the key holes of all the lock plates again.
Background
Referring to fig. 1 and 2, a lock cylinder 1 is mainly provided, the lock cylinder 1 is composed of a lock cylinder base 10, a lock cylinder housing 11, a detent lever 12, a plurality of locking plates 13, a plurality of gaskets 14 and a positioning plate 15, the lock cylinder base 10 is provided with a chamber 100, an inner wall of the chamber 100 is provided with an insertion groove 101, the detent lever 12 is inserted in the insertion groove 101, the lock cylinder base 10 is provided with a key insertion hole 102, the lock cylinder housing 11 is arranged in the chamber 100 of the lock cylinder base 10, a wall of the lock cylinder housing 11 is provided with a cutting groove 110 and a notch 111, a part of the detent lever 12 is inserted in the cutting groove 110 of the lock cylinder housing 11, the plurality of locking plates 13 and the gaskets 14 are arranged in the lock cylinder housing 10 in a staggered manner, each of the locking plates 13 is provided with a key hole 130, an outer edge of each locking plate 13 is provided with an arc notch 131, the arc 131 is provided for the detent lever 12 to be inserted in the detent housing, a convex block 132 is further provided on the outer edge of each lock plate 13, the convex block 132 is provided in the notch 111 of the lock cylinder shell 11, the gaskets 14 are provided with a through hole 140 therein, the outer edge of each gasket 14 is provided with an arc notch 141, the arc notch 141 is provided for the detent lever 12 to be inserted, the outer edge of each gasket 14 is further provided with a flange 142, the flange 142 is provided in the notch 111 of the lock cylinder shell 11, the positioning plate 15 is provided at the end of the lock cylinder shell 11, the positioning plate 15 is provided with a key hole 150, two corresponding long edges of the key hole 150 are respectively provided with a convex body 151, thus, the lock cylinder structure of the laminated lock is obtained, the guide groove on the key is aligned with the convex body 151 on the positioning plate 15 by inserting the key into the key hole 150 of the positioning plate 15 from the key insertion hole 102 of the lock cylinder seat 10 and the key hole 130 of each lock plate 13 and the through hole 140 of each gasket 14 in the lock cylinder shell 11, and the cutting grooves on two corresponding wall surfaces of the key are aligned with the positions of each lock plate 13 and gasket 14 and can be driven to rotate and drive the convex body 151 on the positioning plate 15 The lock core shell 11 rotates to achieve the actions of unlocking and locking; however, if each lock plate 13 in the lock cylinder housing 11 of the ordinary laminated lock is inserted into the key hole 130 with an incorrect key, each lock plate 13 can still be rotated by about ninety degrees (i.e. the gap 111 angle on the lock cylinder housing 11), if the user does not insert the key completely into the inner bottom surface of the lock cylinder housing 11 or the thief strongly rotates the key with an incorrect key, the key hole 130 or the key of the lock plate 13 is easily deformed or broken, which results in the unsmooth rotation of the lock and the lock of the key inserted into the lock cylinder, and the anti-theft effect is easily reduced, and further, after the key is pulled out, the lock plate 13 in the lock cylinder housing 11 of the ordinary laminated lock is disoriented by the vibration generated during the vehicle running (as shown in fig. 2), so that the key holes 130 on each lock plate 13 cannot be aligned with each other, when the key is inserted into the key holes 150, 130, the key is slightly shaken and then inserted into the key holes 150, 150 of each lock plate 13, 130, the key can be completely inserted into the inner bottom surface of the lock cylinder shell 11 to rotate the lock cylinder shell 11 for unlocking after the key holes 150, 130 of the positioning plate 15 and each lock plate 13 are completely aligned, so that it is very troublesome and troublesome to use the key to unlock or lock.
Disclosure of Invention
The main purpose of the present invention is to provide an anti-theft structure composed of a lock core and a key, which can effectively solve the disadvantages of the existing lock core and key in use.
The invention relates to an anti-theft structure composed of a lock core and a key, which comprises:
a lock core, including a lock core seat, a lock core shell, a positioning plate and a detent lever, wherein the lock core seat is provided with a chamber, the inner wall of the chamber is provided with an embedded groove, the lock core seat is provided with a key insertion hole, the lock core shell is arranged in the chamber of the lock core seat, the wall of the lock core shell is provided with a cutting groove and a gap, a plurality of lock plates and a plurality of gaskets are alternatively stacked in the lock core shell, each lock plate is provided with a key hole, the outer edge of each lock plate is provided with an arc notch, the outer edge of each lock plate is further provided with a lug, the lug is arranged in the gap of the lock core shell, each gasket is provided with a through hole, the outer edge of each gasket is provided with an arc notch, the outer edge of each gasket is further provided with a flange, the flange is arranged in the gap of the lock core shell, the positioning plate is arranged at the end of the lock core shell and is arranged in the chamber of the lock core seat, the positioning piece is provided with a key hole, the long edges corresponding to the two key holes are respectively provided with a convex body, one part of the clamping rod is embedded in the cutting groove of the lock cylinder shell and embedded in the arc notches of the lock plate and the gasket, and the other part of the clamping rod is embedded in the embedding groove of the lock cylinder seat;
the key is inserted into the lock core, two opposite wall surfaces of the key are respectively provided with a guide groove, the wall surface of the key is provided with a plurality of tooth grooves, and the tooth grooves respectively correspond to the positions of the lock sheets of the lock core;
the method is characterized in that: the wall surface of the chamber of the lock core seat is provided with a containing groove, one side of the containing groove is provided with a shaft hole, the other side of the containing groove is provided with a groove, the inner ring of the chamber of the lock core seat is provided with a ring groove, the inner bottom surface of the lock core shell is provided with a sliding groove, the sliding groove is internally provided with a concave hole, a push sheet is arranged in the sliding groove of the lock core shell, the push sheet is provided with a through hole, a limiting sheet is arranged between the lock core shell and the positioning sheet and arranged in the chamber of the lock core seat, the limiting sheet is provided with a key hole, the long edges corresponding to the two phases of the key hole are respectively provided with an arc groove, the outer edge of the limiting sheet is provided with a convex block which is embedded in the embedding groove of the lock core seat, a braking bolt plate is arranged in the containing groove of the lock core seat, one side of the braking bolt plate is provided with a fulcrum shaft, the shaft hole of the lock core seat is arranged in the shaft hole of the lock core seat, a compression spring is arranged in the groove of the lock core seat, the compression spring is pushed against the tumbler plate, a positioning baffle is arranged in a containing chamber of the lock cylinder seat and is positioned at the bottom of the lock cylinder shell, the positioning baffle is provided with a through hole, a first baffle body is convexly arranged at the position, corresponding to the caulking groove of the lock cylinder seat, of the positioning baffle, a second baffle body is convexly arranged at the position, corresponding to the containing groove and the groove of the lock cylinder seat, of the positioning baffle, a buckle ring is arranged at the outer side of the positioning baffle, the buckle ring is embedded in the annular groove of the lock cylinder seat, an annular groove is arranged on the key, and the annular groove corresponds to the position of the limiting piece in the lock cylinder.
The invention discloses an anti-theft structure composed of a lock core and a key, which has the advantages that: when the key is inserted into the lock core to unlock, the key is inserted into the lock core completely, and the key can be rotated to drive the lock core shell to rotate, so that unlocking is realized, the key can be prevented from being rotated when the key is not completely pulled out of the lock core, the key holes of the lock cores can not be disorderly positioned, the key can be smoothly inserted into the key holes of the lock cores for use when the key is inserted into the key holes of the lock cores again, the service lives of the lock core and the key are long, and the optimal anti-theft effect can be achieved.
Drawings
Fig. 1 is an exploded perspective view of a conventional lock cylinder.
Fig. 2 is a schematic cross-sectional view of a conventional lock core structure.
Fig. 3 is an exploded perspective view of a lock cylinder according to an embodiment of the present invention.
Fig. 4 is an exploded perspective view of another angle of the lock core according to the embodiment of the present invention.
FIG. 5 is a perspective view of a lock cylinder and key according to an embodiment of the present invention.
Fig. 6 is a combination cross-sectional view of a lock cylinder according to an embodiment of the present invention.
Fig. 7 is a cross-sectional view of a lock cylinder without a key inserted therein according to an embodiment of the present invention.
Fig. 8 is a schematic sectional view showing the combination of a key inserted into a key hole of a cylinder core according to an embodiment of the present invention.
FIG. 9 is a cross-sectional view of a lock cylinder with a key inserted into a keyway of the lock cylinder in accordance with an embodiment of the present invention.
Fig. 10 is a schematic view showing the key being withdrawn from the lock cylinder according to the embodiment of the present invention.
Description of reference numerals:
1 Lock core 10 Lock core seat 100 Chamber
101 caulking groove 102 key jack 11 lock core shell
110 slot 111 notch 12 detent lever
13 Lock tab 130 keyhole 131 arc notch
132 bump 14 pad 140 through hole
141 arc notch 142 flange 15 locating tab
150 keyhole 151 convex body
2 lock core 20 lock core seat 200 chamber
201 caulking groove 202 receiving groove 203 shaft hole
204 groove 205 groove 206 key receptacle
21 the lock cylinder shell 210 is cut in the slot 211
212 chute 213 notch 22 push piece
220 perforation 23 lock plate 230 keyhole
231 arc notch 232 bump 24 shim
240 perforated 241 arc notch 242 flange
25 limiting piece 250 keyhole 251 arc groove
252 key hole of positioning piece 260 of convex body 26
261 convex body 27 detent lever 28 detent bolt plate
280 fulcrum 29 compression spring
30 positioning baffle 300 through hole 301 first baffle body
302 second stopper 31 retaining ring
4 key 40 groove 41 gullet
42 ring groove
Detailed Description
To achieve the above-mentioned purpose and effect, the present invention adopts a technical solution, which is to provide a preferred embodiment, and is shown in the drawings, and the following detailed description is given:
referring to fig. 3 to 5, an embodiment of the present invention mainly includes a lock cylinder 2, the lock cylinder 2 includes a lock cylinder base 20, a lock cylinder housing 21, a push plate 22, a plurality of locking plates 23, a plurality of spacers 24, a limiting plate 25, a positioning plate 26, a detent lever 27, a tumbler plate 28, a compression spring 29, a positioning baffle 30, and a retaining ring 31, the lock cylinder base 20 includes a chamber 200, a receiving chamber 200 is formed on a wall surface of the chamber 200, a receiving chamber 202 is further formed on a wall surface of the receiving chamber 200, a shaft hole 203 is formed on one side of the receiving chamber 202, a groove 204 is formed on the other side of the receiving chamber 202, a ring groove 205 is formed in the receiving chamber 200 of the lock cylinder base 20, a key insertion hole 206 is formed on the lock cylinder housing 20, the lock cylinder housing 21 is disposed in the receiving chamber 200 of the lock cylinder base 20, a cutting groove 210 and a notch 211 are formed on a wall surface of the lock cylinder housing 21, a concave hole 213 is provided in the sliding slot 212, the push plate 22 is disposed in the sliding slot 212 of the lock core housing 21, a through hole 220 is provided on the push plate 22, a plurality of lock plates 23 and a plurality of gaskets 24 are alternatively stacked in the lock core housing 21, a key hole 230 is provided on each lock plate 23, an arc notch 231 is provided on the outer edge of each lock plate 23, the arc notch 131 is provided for the detent rod 26 to be embedded, a protrusion 232 is further provided on the outer edge of each lock plate 23, the protrusion 232 is provided in the notch 211 of the lock core housing 21, a through hole 240 is provided on each gasket 24, an arc notch 241 is provided on the outer edge of each gasket 24, the arc notch 241 is provided for the detent rod 26 to be embedded, a flange 242 is further provided on the outer edge of each gasket 24, the flange 242 is provided in the notch 211 of the lock core housing 21, a position-limiting plate 25 is provided at the end of the lock core housing 21 and is disposed in the key 200 of the lock core housing 20, and a hole 250 is provided on the position-limiting plate 25, the key hole 250 has two corresponding long edges each having an arc groove 251, the outer edge of the position-limiting plate 25 having a protrusion 252, the position-limiting plate 26 being disposed outside the position-limiting plate 25, the position-limiting plate 26 having a key hole 260, the two corresponding long edges of the key hole 260 each having a protrusion 261, a portion of the detent lever 27 being embedded in the cutting groove 210 of the lock cylinder housing 21, another portion of the detent lever 27 being embedded in the embedding groove 201 of the lock cylinder base 20, the tumbler plate 28 being disposed in the accommodating groove 202 of the lock cylinder base 20, one side of the tumbler plate 28 having a fulcrum shaft 280, the fulcrum shaft 280 being disposed in the axial hole 203 of the lock cylinder base 20, the compression spring 29 being disposed in the groove 204 of the lock cylinder base 20, the compression spring 29 being pushed against the end of the tumbler plate 28, the position-locating plate 30 being disposed in the accommodating chamber 200 of the lock cylinder base 20 and being located at the bottom of the lock cylinder housing 21, the positioning baffle 30 is provided with a through hole 300, the positioning baffle 30 is provided with a first baffle 301 corresponding to the position of the caulking groove 201 of the core base 20, the positioning baffle 30 is provided with a second baffle 302 corresponding to the positions of the containing groove 202 and the groove 204 of the core base 20, the retaining ring 31 is arranged outside the positioning baffle 30, the retaining ring 31 is embedded in the annular groove 205 of the core base 20, a key 4 is inserted into the core 2, two opposite wall surfaces of the key 4 are respectively provided with a guide groove 40, the wall surface of the key 4 is provided with a plurality of tooth grooves 41, each tooth groove 41 respectively corresponds to the position of each locking piece 23 of the core 2, the key 4 is provided with an annular groove 42, and the annular groove 42 corresponds to the position of the limiting piece 25 in the core 2, thus, the anti-theft structure composed of the core and the key is obtained.
When the lock core 2 of the present invention is assembled, please refer to fig. 3 to 6, the push plate 22 is first placed in the sliding slot 212 of the lock core housing 21, and then the lock plates 23 and the gaskets 24 are sequentially placed in the lock core housing 21 in an interlaced manner, such that the protrusions 232 of the lock plates 23 and the flanges 242 of the gaskets 24 are aligned with each other and are disposed in the notch 211 of the lock core housing 21, a portion of the detent lever 27 is inserted in the notch 210 of the lock core housing 21, the position-limiting plate 25 and the position-limiting plate 26 are stacked on the end of the lock core housing 21, the compression spring 29 is placed in the groove 204 of the lock core housing 20, the tumbler plate 28 is placed in the receiving slot 202 of the lock core housing 20, the shaft 280 of the tumbler plate 28 is placed in the shaft hole 203 of the lock core housing 20, the tumbler plate 28 is rotated and swung around the fulcrum shaft 280, and the above-assembled position-limiting plate 25, positioning plate 26 and lock core housing 21 are then placed in the chamber 200 of the lock core housing, the other part of the latch rod 27 and the protrusion 252 of the position-limiting plate 25, which are protruded on the lock cylinder housing 21, are embedded in the embedding groove 201 of the lock cylinder base 20, the end of the latch plate 28 is pushed by the compression spring 29 to abut against the wall surfaces of the lock plates 23 and the gaskets 24 in the gap 211 in the lock cylinder base 21 and abut against the protrusion 232 of each lock plate 23 and the flange 242 of each gasket 24, so as to block and position each lock plate 23 and each gasket 24, the positioning baffle 30 is disposed in the chamber 200 of the lock cylinder base 20, the bottom of the lock cylinder housing 21 passes through the through hole 300 of the positioning baffle 30, the first baffle 301 of the positioning baffle 30 is embedded in the embedding groove 201 of the lock cylinder base 20, the second baffle 302 of the positioning baffle 30 is disposed in the containing groove 202 and the groove 204 of the lock cylinder base 20, so as to block and position the latch plate 28 and the compression spring 29, and the retaining ring 31 is fastened in the annular groove 205 of the lock cylinder base 20, the positioning block 30 is then positioned in the chamber 200 of the core holder 20, thereby completing the overall assembly of the core 2.
The lock core 2 of the present invention can be assembled to various locks for use, and the lock core 2 and the key 4 of the present invention are used, please refer to fig. 6-10, when unlocking, the key 4 is inserted into the key insertion hole 206 of the lock core seat 20, and further goes through the key holes 260, 250 of the positioning plate 26 and the limiting plate 25 and further goes deep into the key hole 230 of each locking plate 23 and the through hole 240 of each spacer 24 in the lock core housing 21, when the bottom end of the key 4 is inserted into the bottom surface of the lock core housing 21, the key 4 is inserted into the through hole 220 of the push plate 22, so that the push plate 22 is pushed by the bottom end of the key 4 to slide on the sliding slot 212 in the lock core housing 21, one end of the push plate 22 is pushed against the tumbler plate 28 to move rotationally (as shown in fig. 8 and 9), the tumbler plate 28 moves rotationally and presses the compression spring 29, so that the compression spring 29 is in an elastic compression state, and the tumbler plate 28 is pushed by the push plate 22 to move into the accommodating groove 202, the protrusions 232 of the locking pieces 23 and the flanges 242 of the gaskets 24 are no longer retained, so that the key 4 can be rotated to drive the lock cylinder shell 21 to rotate, and the unlocking action is completed; when the key 4 is not inserted into the lock cylinder 2 (as shown in fig. 6 and 7), the protrusions 232 of the locking plates 23 and the flanges 242 of the spacers 24 in the lock cylinder housing 21 are retained by the tumbler plates 28 and cannot be rotated (as shown in fig. 7), and the user inserts the correct key 4 into the key insertion hole 206 and the positioning plate 26 of the lock cylinder seat 20, the positioning plate 25 and the key holes 260, 250 and 230 of the locking plates 23, but the key 4 is not completely inserted, the lug 232 of each locking plate 23 and the flange 242 of each spacer 24 are still blocked by the tumbler plate 28 and cannot be rotated, so the key 4 is inserted into the bottom in the lock cylinder shell 21, the push plate 22 is pushed by the bottom end of the key 4 to slide, the push plate 22 pushes the tumbler plate 28 to rotate, the lug 232 of each locking plate 23 and the flange 242 of each spacer 24 are not blocked any more, the key 4 can be rotated and the lock cylinder shell 21 is driven to rotate, and the unlocking action is completed; when the key 4 is reset after being unlocked, the protrusions 232 of the locking pieces 23 and the flanges 242 of the gaskets 24 are aligned with each other again, the key 4 is pulled out of the lock cylinder 2, the push piece 22 is not pushed by the key 4, the tumbler plates 28 and the push pieces 22 are pushed back to the original positions (as shown in fig. 6 and 7) by the elastic recovery of the compression spring 29, the tumbler plates 28 are retained in the protrusions 232 of the locking pieces 23 and the flanges 242 of the gaskets 24 in the lock cylinder shell 21 again, and the locking pieces 23 and the gaskets 24 cannot be rotated; when the key 4 is to be pulled out from the lock cylinder 2 and the key 4 is not yet completely pulled out of the lock cylinder 2 (as shown in fig. 10), the protrusion 252 of the position-limiting piece 25 is inserted into the insertion groove 201 of the cylinder base 20 to limit the rotation, so that the key 4 cannot be rotated freely during the process of being pulled out from the lock cylinder 2 and can only be pulled out in the straight direction, thereby preventing the key 4 from rotating during the process of pulling out the lock cylinder 2, preventing the key holes 230 of the lock pieces 23 in the lock cylinder 2 from being disorderly, and enabling the key 4 to be smoothly inserted and used when being inserted into the key holes 230 of the lock pieces 23 again.
The invention relies on the bottom in the lock core shell 21 to have the concrete chute 212 and the pusher 22, when the key 4 is not inserted into the bottom surface in the lock core shell 21 completely, can't rotate the key 4, can prevent the key 4 from rotating the lock core 2 with strength and producing and deforming or breaking, can increase the service life of the key 4 and lock core 2 structure, and have very good theft-proof effects, and rely on the setting of the spacer 25, can prevent the key 4 from rotating when the key 4 is not drawn out the lock core 2 completely, make the keyhole 230 of every lock plate 23 in the lock core 2 will not be disorderly, for can insert and use smoothly when the key 4 is inserted into keyhole 230 of every lock plate 23 again.
The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (1)
1. An anti-theft structure composed of a lock core and a key comprises:
a lock core, including a lock core seat, a lock core shell, a positioning plate and a detent lever, wherein, a chamber is arranged in the lock core seat, an embedding groove is arranged on the inner wall surface of the chamber, a key inserting hole is arranged on the lock core seat, the lock core shell is arranged in the chamber of the lock core seat, a cutting groove and a gap are arranged on the wall surface of the lock core shell, a plurality of lock plates and a plurality of gaskets are alternatively overlapped in the lock core shell, a key hole is arranged on each lock plate, an arc notch is arranged on the outer edge of each lock plate, a lug is arranged on the outer edge of each lock plate, the lug is arranged in the gap of the lock core shell, a through hole is arranged on each gasket, an arc notch is arranged on the outer edge of each gasket, a flange is arranged on the outer edge of each gasket, the flange is arranged in the gap of the lock core shell, the positioning plate is arranged at the end part of the lock core shell and is arranged in the chamber of the lock core seat, the positioning piece is provided with a key hole, the long edges corresponding to the two key holes are respectively provided with a convex body, one part of the clamping rod is embedded in the cutting groove of the lock cylinder shell and embedded in the arc notches of the lock plate and the gasket, and the other part of the clamping rod is embedded in the embedding groove of the lock cylinder seat;
the key is inserted into the lock core, two opposite wall surfaces of the key are respectively provided with a guide groove, the wall surface of the key is provided with a plurality of tooth grooves, and the tooth grooves respectively correspond to the positions of the lock sheets of the lock core;
the method is characterized in that: the wall surface of the chamber of the lock core seat is provided with a containing groove, one side of the containing groove is provided with a shaft hole, the other side of the containing groove is provided with a groove, the inner ring of the chamber of the lock core seat is provided with an annular groove, the inner bottom surface of the lock core shell is provided with a sliding groove, the sliding groove is internally provided with a concave hole, a push sheet is arranged in the sliding groove of the lock core shell, the push sheet is provided with a through hole, a limiting sheet is arranged between the lock core shell and the positioning sheet and arranged in the chamber of the lock core seat, the limiting sheet is provided with a key hole, two corresponding long edges of the key hole are respectively provided with an arc groove, the outer edge of the limiting sheet is provided with a convex block, the convex block is embedded in the embedding groove of the lock core seat, a braking bolt plate is arranged in the containing groove of the lock core seat, one side of the braking bolt plate is provided with a fulcrum shaft, the fulcrum shaft is arranged in the shaft hole of the lock core seat, a compression spring is arranged in the groove of the lock core seat, the compression spring is pushed against the tumbler plate, a positioning baffle is arranged in a containing chamber of the lock cylinder seat and is positioned at the bottom of the lock cylinder shell, the positioning baffle is provided with a through hole, a first baffle body is convexly arranged at the position, corresponding to the caulking groove of the lock cylinder seat, of the positioning baffle, a second baffle body is convexly arranged at the position, corresponding to the containing groove and the groove of the lock cylinder seat, of the positioning baffle, a buckle ring is arranged at the outer side of the positioning baffle, the buckle ring is embedded in the annular groove of the lock cylinder seat, an annular groove is arranged on the key, and the annular groove corresponds to the position of the limiting piece in the lock cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111240379.XA CN114150936B (en) | 2021-10-25 | 2021-10-25 | Anti-theft structure composed of lock core and key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111240379.XA CN114150936B (en) | 2021-10-25 | 2021-10-25 | Anti-theft structure composed of lock core and key |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114150936A CN114150936A (en) | 2022-03-08 |
| CN114150936B true CN114150936B (en) | 2022-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111240379.XA Active CN114150936B (en) | 2021-10-25 | 2021-10-25 | Anti-theft structure composed of lock core and key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114150936B (en) |
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| CN102121328A (en) * | 2011-01-10 | 2011-07-13 | 李巩令 | Lock cylinder and antitheft mortise door lock adopting same |
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| CN114150936A (en) | 2022-03-08 |
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