CN114150936B - Anti-theft structure composed of lock core and key - Google Patents

Abstract

The invention provides an anti-theft structure composed of a lock core and a key. The lock core is composed of a lock core seat, a lock core shell, a push piece, several pieces of lock pieces, several pieces of gaskets, a limit piece, a positioning piece, a detent lever, a control piece, a It is composed of a moving bolt plate, a compression spring, a positioning block and a buckle. The push piece is set in the chute on the inner bottom surface of the lock core shell, and the number of lock pieces and the number of gaskets are alternately stacked on the lock core. In the shell, the limiting piece and the positioning piece are arranged on the outer end of the lock core shell, and are placed in the lock core seat together with the lock core shell, and the brake tumbler plate is arranged on the lock core seat In the accommodating groove of the lock core seat, the compression spring is set in the groove of the lock core seat, the compression spring is pushed against the brake tumbler plate, the positioning block is set in the accommodating chamber of the lock core seat, and is located in the The bottom of the lock core shell, the buckle is embedded in the ring groove of the lock core seat, and the key is provided with a ring groove, so that the key can be inserted into the inner bottom surface of the lock core shell or incomplete When the lock core is pulled out, the lock plate will not be rotated, so as to achieve the anti-theft effect.

Description

Anti-theft structure composed of lock core and key

technical field

The invention relates to an anti-theft structure composed of a lock core and a key, in particular to a lock core housing with a push piece on the inner bottom surface and a brake tumbler plate in the lock core seat, which can make the key not completely inserted into the anti-theft structure. When the inner bottom surface of the lock core shell, the lock core is not rotated, which can achieve the best anti-theft effect, and there is a limit piece in the lock core seat, which can prevent the key from rotating when the key is not completely pulled out of the lock core, so that the lock can be locked. The key holes of each lock plate in the heart will not be out of position, so that the key can be inserted into the key hole of each lock plate smoothly for use.

Background technique

Please refer to Fig. 1 and Fig. 2 for the lock core structure of the general laminated lock. There is mainly a lock core 1. The lock core 1 is provided with a lock core seat 10, a lock core shell 11, a detent lever 12 and Several pieces of locking pieces 13, several pieces of spacers 14 and a positioning piece 15 are formed. The lock core seat 10 is provided with an accommodation chamber 100, the inner wall of the accommodation chamber 100 is provided with an embedding groove 101, and a locking rod 12 is embedded in In the insert groove 101, a key socket 102 is provided on the lock core seat 10, and the lock core shell 11 is arranged in the accommodation chamber 100 of the lock core seat 10, and the wall surface of the lock core shell 11 is provided with all A slot 110 and a gap 111, a part of the latching lever 12 is embedded in the slot 110 of the lock core shell 11, and several pieces of locking pieces 13 and gaskets 14 are alternately arranged in the lock core shell 10. Each of the locking pieces 13 is provided with a key hole 130 , and the outer edge of each locking piece 13 is provided with an arc notch 131 , the arc notch 131 is used for the latching rod 12 to be embedded in, and an outer edge of each locking piece 13 is additionally provided with an arc notch 131 . The convex block 132 is arranged in the notch 111 of the lock core shell 11 , and the gaskets 14 are provided with a through hole 140 , and the outer edge of each gasket 14 is provided with an arc notch 141 . The notch 141 is used for the locking rod 12 to be embedded, and a flange 142 is provided on the outer edge of each gasket 14. The flange 142 is arranged in the notch 111 of the lock core shell 11, and the positioning piece 15 is arranged on the lock core. At the end of the shell 11, the positioning piece 15 is provided with a key hole 150, and two corresponding long edges of the key hole 150 are respectively provided with a convex body 151, so that it is the lock core structure of the laminated lock. The key hole 102 of the lock core seat 10 is inserted into the key hole 150 of the positioning piece 15 and the key hole 130 of each lock piece 13 and the through hole 140 of each gasket 14 in the lock core shell 11, so that the The guide groove is aligned with the convex body 151 on the positioning piece 15, and the cut grooves on the opposite walls of the key 2 are aligned with the positions of each locking piece 13 and the washer 14, which can be rotated and drive the lock shell 11 to rotate. To achieve the action of unlocking and locking; however, if each locking piece 13 in the core shell 11 of a general laminated lock is inserted into the key hole 130 with an incorrect key, each locking piece 13 can still be rotated about 90 degrees. (that is, the angle of the notch 111 on the lock shell 11), if the user does not completely insert the key into the inner bottom surface of the lock shell 11 or when the thief turns the key forcefully with an incorrect key, the key hole 130 of the lock plate 13 or the key It is easy to be deformed or broken, resulting in the unsmooth rotation of the unlocking and locking when the key is inserted into the lock core, and the anti-theft effect is easily reduced. After the key is pulled out, the vibration generated by the vehicle while driving causes the rotation to be out of position (as shown in Figure 2), so that the key holes 130 on each locking piece 13 cannot be aligned with each other. When these key holes 150 and 130 are mentioned above, the key must be slightly shaken and inserted into the key holes 150 and 130 of the positioning piece 15 and each locking piece 13 slowly, so that the positioning piece 15 and each locking piece 13 150, 130 over After all alignment, the key can be completely inserted into the inner bottom surface of the lock shell 11 for rotating the lock shell 11 to achieve the purpose of unlocking, so it is extremely troublesome and time-consuming to use the key to unlock or lock.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide an anti-theft structure composed of a lock cylinder and a key, which can effectively solve the shortcomings of the existing lock cylinder and key in use.

The anti-theft structure composed of the lock core and the key of the present invention includes:

A lock core includes a lock core seat, a lock core shell, a positioning piece and a locking lever, wherein, the lock core seat is provided with an accommodation chamber, and the inner wall surface of the accommodation chamber is provided with an insert groove, the lock core There is a key socket on the seat, the lock core shell is arranged in the chamber of the lock core seat, the wall surface of the lock core shell is provided with a groove and a notch, and several lock pieces and several pieces of gaskets are alternately stacked on top of each other. In the lock core shell, each lock piece is provided with a key hole, the outer edge of each lock piece is provided with an arc notch, and the outer edge of each lock piece is also provided with a convex block, and the convex block is arranged on the lock. In the notch of the core shell, each gasket is provided with a perforation, the outer edge of each gasket is provided with an arc notch, and a flange is provided on the outer edge of each gasket. In the notch of the lock core shell, the positioning piece is arranged at the end of the lock core shell and inserted into the container of the lock core seat. The positioning piece is provided with a key hole, and the two corresponding long edges of the key hole are Each is provided with a convex body, a part of the latching rod is embedded in the slot of the lock core shell, and is embedded in the arc notch of the locking piece and the gasket, and the other part of the latching rod is embedded in the in the insert groove of the lock seat;

A key is inserted into the lock core, a guide groove is provided on two opposite walls of the key, and a plurality of tooth grooves are formed on the wall surface of the key, and each tooth groove corresponds to each lock piece of the lock core respectively. Location;

It is characterized in that: an accommodating groove is provided on the wall surface of the accommodating chamber of the lock core seat, one side of the accommodating groove is provided with a shaft hole, the other side of the accommodating groove is provided with a groove, and the The inner ring of the container is provided with a ring groove, the inner bottom surface of the lock core shell is provided with a chute, a concave hole is arranged in the chute, a push piece is arranged in the chute of the lock core shell, the push piece is provided with a perforation, a The limiting piece is set between the lock core shell and the positioning piece, and is set in the chamber of the lock core seat, the limiting piece is provided with a key hole, and the two corresponding long edges of the key hole are each provided with an arc The outer edge of the limiting piece is provided with a convex block, the convex block is embedded in the embedding groove of the lock core seat, a brake tumbler plate is set in the accommodating groove of the lock core seat, the brake tumbler plate is arranged in the accommodating groove of the lock core seat One side of the plate is provided with a fulcrum, the fulcrum is set in the shaft hole of the lock core seat, a compression spring is set in the groove of the lock core seat, and the compression spring pushes against the brake tumbler plate, A positioning block is arranged in the chamber of the lock core seat and is located at the bottom of the lock core shell. a blocking body, a second blocking body is protruded on the positioning blocking piece corresponding to the accommodating groove and the groove of the lock core seat, a retaining ring is arranged on the outer side of the positioning blocking piece, and the retaining ring is embedded in the In the ring groove of the lock core seat, the key is provided with a ring groove, and the ring groove corresponds to the position of the limiting piece in the lock core.

The anti-theft structure composed of the lock core and the key of the present invention has the advantages that: when the key is inserted into the lock core to unlock, the key must be completely inserted into the lock core, and then the key can be rotated to drive the lock core shell to rotate to unlock the lock. , and can prevent the key from being rotated when the key is not completely pulled out of the lock core, so that the key holes of each lock piece in the lock core will not be out of place, so that the key can be smoothly inserted into the key hole of each lock piece again. When inserted, the lock core and key have a long service life and can achieve the best anti-theft effect.

Description of drawings

FIG. 1 is an exploded perspective view of the existing lock core structure.

FIG. 2 is a schematic cross-sectional view of the existing lock core structure.

FIG. 3 is an exploded perspective view of the lock core according to the embodiment of the present invention.

FIG. 4 is a perspective exploded 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 core and a key according to an embodiment of the present invention.

FIG. 6 is a combined cross-sectional view of a lock core according to an embodiment of the present invention.

7 is a schematic cross-sectional view of the lock core without a key inserted in the lock core according to the embodiment of the present invention.

FIG. 8 is a schematic cross-sectional view of a combination of an embodiment of the present invention where the key is inserted into the key hole of the lock core.

9 is a schematic cross-sectional view of the lock core with the key inserted into the key hole of the lock core according to the embodiment of the present invention.

Fig. 10 is a schematic diagram showing the key when the key is drawn out of the lock core according to the embodiment of the present invention.

Description of reference numbers:

1 lock center 10 lock center seat 100 chamber

101 Insert slot 102 Key socket 11 Lock core shell

110 Notch 111 Notch 12 Detent

13 Lock plate 130 Key hole 131 Arc notch

132 bumps 14 spacers 140 perforations

141 Arc notch 142 Flange 15 Positioning piece

150 key hole 151 convex body

2 lock core 20 lock core seat 200 chamber

201 Embedding groove 202 Receiving groove 203 Shaft hole

204 groove 205 ring groove 206 key socket

21 Lock core shell 210 Slot 211 Notch

212 Chute 213 Recessed hole 22 Push piece

220 perforation 23 cleat 230 key hole

231 arc notch 232 bump 24 spacer

240 Perforation 241 Arc Notch 242 Flange

25 limit piece 250 key hole 251 arc groove

252 convex body 26 positioning piece 260 key hole

261 convex body 27 clamping lever 28 brake tumbler plate

280 Pivot 29 Compression Spring

30 Positioning block 300 Through hole 301 First block

302 Second stopper 31 Retaining ring

4 keys 40 guide grooves 41 tooth grooves

42 ring grooves

Detailed ways

In order to achieve the above-mentioned purpose of use and effect of the present invention, the technical means adopted are hereby citing preferable feasible embodiments, and shown in the drawings, detailed as follows:

The embodiment of the present invention, as shown in FIGS. 3 to 5 , mainly includes a lock core 2 . The lock core 2 consists of a lock core seat 20 , a lock core shell 21 , a push piece 22 , and several lock pieces 23 . , a number of gaskets 24, a limit piece 25, a positioning piece 26, a locking lever 27, a brake tumbler plate 28, a compression spring 29, a positioning block 30 and a retaining ring 31. The lock core seat 20 is provided with an accommodating chamber 200, the wall surface of the accommodating chamber 200 is provided with an insertion groove 201, the wall surface of the accommodating chamber 200 is further provided with an accommodating groove 202, and one side of the accommodating groove 202 is provided with a shaft hole 203, The other side of the accommodating groove 202 is provided with a groove 204, the inner ring of the accommodating chamber 200 of the lock core seat 20 is provided with a ring groove 205, the lock core seat 20 is provided with a key socket 206, and the lock core shell 21 is set in the chamber 200 of the lock core seat 20, the wall surface of the lock core shell 21 is provided with a groove 210 and a gap 211, the inner bottom surface of the lock core shell 21 is provided with a sliding groove 212, the sliding groove 212 A concave hole 213 is provided, the push piece 22 is set in the chute 212 of the lock core shell 21, and a through hole 220 is formed on the push piece 22. Several pieces of the lock piece 23 and several pieces of the gasket 24 are stacked on top of each other. In the lock core shell 21, each lock piece 23 is provided with a key hole 230, and the outer edge of each lock piece 23 is provided with an arc notch 231. The arc notch 131 is used for the locking rod 26 to be embedded. A protruding block 232 is provided on the outer edge of each locking piece 23. The protruding block 232 is arranged in the notch 211 of the lock core shell 21, and each of the gaskets 24 is provided with a through hole 240. An arc notch 241 is provided on the outer edge. The arc notch 241 is used for the latching rod 26 to be embedded. A flange 242 is provided on the outer edge of each gasket 24. The flange 242 is arranged on the lock core shell 21. In the notch 211 of the lock core 21, a limit piece 25 is arranged at the end of the lock core shell 21 and inserted into the chamber 200 of the lock core seat 20. The limit piece 25 is provided with a key hole 250, the key Two corresponding long edges of the holes 250 are respectively provided with an arc groove 251 , the outer edge of the limiting piece 25 is provided with a convex block 252 , and the positioning piece 26 is arranged on the outer side of the limiting piece 25 , on the positioning piece 26 A key hole 260 is provided, and two corresponding long edges of the key hole 260 are respectively provided with a convex body 261, and a part of the locking rod 27 is embedded in the slot 210 of the lock core shell 21. The locking rod The other part of 27 is embedded in the embedding groove 201 of the lock core seat 20, the brake tumbler plate 28 is set in the accommodating groove 202 of the lock core seat 20, and one side of the brake tumbler plate 28 is provided with a support A shaft 280, the support shaft 280 is arranged in the shaft hole 203 of the lock core seat 20, the compression spring 29 is arranged in the groove 204 of the lock core seat 20, and the compression spring 29 pushes against the tumbler plate 28, the positioning block 30 is arranged in the chamber 200 of the lock core seat 20, and is located at the bottom of the lock core shell 21, the positioning block 30 is provided with a through hole 300, the positioning block 30 corresponds to A first blocking body is protruded from the position of the insert groove 201 of the lock core seat 20 301, the positioning block 30 is protruded with a second block 302 at the position corresponding to the accommodating groove 202 and the groove 204 of the lock core seat 20, the retaining ring 31 is arranged on the outer side of the positioning block 30, the retaining ring 31 and embedded in the ring groove 205 of the lock core seat 20, a key 4 for inserting in the lock core 2, a guide groove 40 is provided on the opposite two wall surfaces of the key 4, and the wall surface of the key 4 is provided with a guide groove 40. There are several tooth slots 41 , and each tooth slot 41 corresponds to the position of each lock piece 23 of the lock core 2 . The key 4 is provided with a ring groove 42 , and the ring groove 42 corresponds to the lock core 2 . The position of the limit piece 25, in this way, is an anti-theft structure composed of a lock core and a key.

When assembling the lock core 2 of the present invention, please refer to FIGS. 3 to 6 , first place the push piece 22 into the chute 212 of the lock core shell 21 , and then sequentially place the number of lock pieces 23 and the number of pieces The gaskets 24 are staggered into the lock core shell 21, so that the protrusions 232 of each locking piece 23 and the flanges 242 of each gasket 24 are aligned with each other and are arranged in the gap 211 of the lock core shell 21, and then the clamping A part of the rod 27 is embedded in the slot 210 of the lock core shell 21, and the limiting piece 25 and the positioning piece 26 are stacked on the end of the lock core shell 21, and a compression spring 29 is placed in the lock core. In the groove 204 of the seat 20, the brake tumbler plate 28 is set in the accommodating groove 202 of the lock core seat 20, and the support shaft 280 of the brake tumbler plate 28 is set in the shaft hole 203 of the lock core seat 20 , so that the brake tumbler plate 28 can rotate and swing with the fulcrum 280 as the fulcrum, and then put the above-mentioned set of limit pieces 25 , positioning pieces 26 and lock core shell 21 into the chamber of the lock core seat 20 together 200, and the other part of the detent lever 27 protruding from the lock core shell 21 and the protrusion 252 of the limiting piece 25 are embedded in the embedding groove 201 of the lock core seat 20, and the other brake tumbler plate 28 The end of the lock is pushed by the compression spring 29 and abuts against the wall surfaces of each locking piece 23 and each washer 24 located in the notch 211 in the lock core seat 21, and abuts against the projections 232 and 24 of each locking piece 23. The flanges 242 of each gasket 24 block and position each locking piece 23 and each gasket 24, and then the positioning blocking piece 30 is placed in the chamber 200 of the lock core seat 20, and the bottom of the lock core shell 21 Passing through the through hole 300 of the positioning blocking piece 30 , the first blocking body 301 of the positioning blocking piece 30 is embedded in the embedding groove 201 of the lock core seat 20 for positioning, and the second blocking body 302 of the positioning blocking piece 30 is provided In the accommodating groove 202 and the groove 204 of the lock core seat 20, the brake tumbler plate 28 and the compression spring 29 can be blocked and positioned, and then the retaining ring 31 can be buckled in the ring groove 205 of the lock core seat 20, Then, the positioning block 30 is positioned in the chamber 200 of the lock core seat 20 , so that the overall assembly of the lock core 2 can be completed.

The lock cylinder 2 of the present invention can be set on various locks for use. When the lock cylinder 2 and the key 4 of the present invention are in use, please refer to FIGS. 6 to 10. When unlocking, the key 4 is inserted into the key hole 206 of the lock core seat 20, and through the key holes 260 and 250 of the positioning piece 26 and the limiting piece 25, and then penetrate into the key hole 230 of each lock piece 23 and the key hole 230 of each gasket 24 in the lock core shell 21. In the through hole 240, when the bottom end of the key 4 is inserted into the inner bottom surface of the lock core shell 21, the key 4 is inserted into the through hole 220 of the push piece 22, so that the push piece 22 is pushed against the lock core by the bottom end of the key 4 The chute 212 in the housing 21 slides up, and one end of the push piece 22 pushes against the tumbler plate 28 and rotates (as shown in FIG. 8 and FIG. 9 ), and the tumbler plate 28 rotates and squeezes and compresses The spring 29 makes the compression spring 29 in an elastically compressed state, and after the brake tumbler plate 28 is pushed into the accommodating groove 202 by the push piece 22 and rotates, it no longer blocks the protrusions 232 of the lock pieces 23 and the spacers. 24 of the flange 242, in this way, the key 4 can be rotated to drive the lock core shell 21 to rotate, thereby completing the unlocking action; and when the key 4 is not inserted into the lock core 2 (as shown in Figures 6 and 7), The protrusions 232 of each locking piece 23 and the flange 242 of each washer 24 in the lock core housing 21 are blocked by the tumbler plate 28 and cannot be rotated (as shown in FIG. 7 ). 4 is inserted into the key hole 206 and the positioning piece 26, the positioning piece 25 and the key holes 260, 250 and 230 of the lock core seat 20, but the key 4 has not been completely inserted to the end. The protrusion 232 of 23 and the flange 242 of each washer 24 are still blocked by the brake tumbler plate 28 and cannot be rotated, so the key 4 must be inserted into the bottom of the lock core shell 21, so that the push piece 22 is blocked by the key. 4. The bottom end pushes and slides, the push piece 22 pushes against the brake tumbler plate 28 and rotates, and no longer blocks the protrusions 232 of the lock pieces 23 and the flanges 242 of the washers 24, and then the key 4 can be turned. And drive the lock core shell 21 to rotate to complete the unlocking action; and when the key 4 is unlocked and then reset, the bumps 232 of each locking piece 23 and the flanges 242 of each washer 24 are aligned with each other again, and then the key 4 is pulled out of the lock. In the core 2, its push piece 22 is no longer pushed by the key 4, and its tumbler plate 28 and push piece 22 are pushed back to the original position by the elastic recovery of the compression spring 29 (as shown in Figures 6 and 7). ), so that the brake tumbler plate 28 is blocked again on the protrusions 232 of each locking piece 23 and the flange 242 of each gasket 24 in the lock core shell 21, and each locking piece 23 and each gasket 24 cannot be rotated; In addition, when the key 4 is about to be pulled out from the lock core 2, but the key 4 has not been completely pulled out of the lock core 2 (as shown in FIG. 10), the convex body 252 of the limiting piece 25 is embedded in the embedded socket of the lock core seat 20 by virtue of the convex body 252 of the limiting piece 25. Rotation is restricted in the slot 201, so that the key 4 cannot be rotated arbitrarily in the process of being pulled out from the lock core 2, but can only be pulled out straight, so it can prevent the key 4 from rotating when the lock core 2 is pulled out, so that the various parts in the lock core 2 can be prevented from rotating. The key holes 230 of the lock pieces 23 will not be out of position, so that the key 4 can be inserted smoothly into the key holes 230 of each lock piece 23 again. use.

According to the present invention, the inner bottom of the lock core shell 21 is provided with a chute 212 and a push piece 22. When the key 4 is not completely inserted into the inner bottom surface of the lock core shell 21, the key 4 cannot be rotated, which can prevent the key 4 from rotating the lock core strongly. 2, the deformation or breakage occurs, which can increase the service life of the key 4 and the lock core 2, and has an excellent anti-theft effect. The key 4 will not rotate, so that the key holes 230 of each locking piece 23 in the lock cylinder 2 will not be out of position, so that the key 4 can be inserted into the key hole 230 of each locking piece 23 smoothly.

The above description is only illustrative rather than restrictive for the present invention. Those skilled in the art understand that many modifications, changes or equivalents can be made without departing from the spirit and scope defined by the claims. All will fall within the protection scope of the present invention.

Claims (1)

1. An anti-theft structure composed of a lock core and a key, comprising: A lock core includes a lock core seat, a lock core shell, a positioning piece and a locking lever, wherein, the lock core seat is provided with an accommodation chamber, and the inner wall surface of the accommodation chamber is provided with an insert groove, the lock core There is a key socket on the seat, the lock core shell is arranged in the chamber of the lock core seat, the wall surface of the lock core shell is provided with a groove and a notch, and several lock pieces and several pieces of gaskets are alternately stacked on top of each other. In the lock core shell, each lock piece is provided with a key hole, the outer edge of each lock piece is provided with an arc notch, and the outer edge of each lock piece is also provided with a convex block, and the convex block is arranged on the lock In the notch of the core shell, each of the gaskets is provided with a perforation, the outer edge of each of the gaskets is provided with an arc notch, and the outer edge of each of the gaskets is also provided with a flange, the flange is provided on In the notch of the lock core shell, the positioning piece is arranged at the end of the lock core shell and inserted into the container of the lock core seat. The positioning piece is provided with a key hole, and the two corresponding long edges of the key hole are Each is provided with a convex body, a part of the latching rod is embedded in the slot of the lock core shell, and is embedded in the arc notch of the locking piece and the gasket, and the other part of the latching rod is embedded in the in the insert groove of the lock seat; A key is inserted into the lock core, a guide groove is provided on two opposite walls of the key, and a plurality of tooth grooves are formed on the wall surface of the key, and each tooth groove corresponds to each lock piece of the lock core respectively. Location; It is characterized in that: an accommodating groove is provided on the wall surface of the accommodating chamber of the lock core seat, one side of the accommodating groove is provided with a shaft hole, the other side of the accommodating groove is provided with a groove, and the The inner ring of the container is provided with a ring groove, the inner bottom surface of the lock core shell is provided with a chute, a concave hole is arranged in the chute, a push piece is arranged in the chute of the lock core shell, the push piece is provided with a perforation, a The limiting piece is set between the lock core shell and the positioning piece, and is set in the chamber of the lock core seat, the limiting piece is provided with a key hole, and the two corresponding long edges of the key hole are each provided with an arc The outer edge of the limiting piece is provided with a convex block, the convex block is embedded in the embedding groove of the lock core seat, a brake tumbler plate is set in the accommodating groove of the lock core seat, the brake tumbler plate is arranged in the accommodating groove of the lock core seat One side of the plate is provided with a fulcrum, the fulcrum is set in the shaft hole of the lock core seat, a compression spring is set in the groove of the lock core seat, and the compression spring pushes against the brake tumbler plate, A positioning block is arranged in the chamber of the lock core seat and is located at the bottom of the lock core shell. a blocking body, a second blocking body is protruded on the positioning blocking piece corresponding to the accommodating groove and the groove of the lock core seat, a retaining ring is arranged on the outer side of the positioning blocking piece, and the retaining ring is embedded in the In the ring groove of the lock core seat, the key is provided with a ring groove, and the ring groove corresponds to the position of the limiting piece in the lock core.

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