Lock cylinder and key structure
By designing a combination of slide chute, recessed hole and push tab limit in the locking center structure, we ensure that the key can only rotate after being fully inserted, which solves the problem of unstable keys and insufficient anti-theft effect in the existing locking center structure, and achieves a more stable and efficient lock unlocking process.
Patent Information
- Application Number
- CN202510138875.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2025-04-29
AI Technical Summary
The locking structure of the existing laminated lock is unstable during the key insertion and unlocking process, which can easily lead to the key deformation or breakage, and the unlocking and locking process is not smooth, affecting the anti-theft effect.
A locking center and key structure is designed, using the sliding groove and concave hole on the inner bottom of the locking center shell combined with the elliptical concave surface, pushing plate and limiting plate to ensure that the key can only rotate after being fully inserted, preventing the key from rotating vigorously, and through the design of the brake latch and compression spring, the key is prevented from rotating when it is not fully inserted.
It realizes a more stable and smooth key insertion and unlocking process, avoids key deformation or breakage, improves the anti-theft effect of the lock core structure, and extends the service life of the key and lock core structure.
Smart Images
Figure CN119900431A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a lock core and key structure, in particular to a structure which can insert a key into the lock core more stably and smoothly and can prevent the key from not rotating when the key is not fully inserted into the lock core, so that the key can be unlocked and locked more smoothly. Background Art
[0002] For the lock core structure of general laminated locks, please refer to Figure 1 , Figure 2As shown, a lock core 1 is mainly provided, and the lock core 1 is composed of a lock core seat 10, a lock core shell 11, a latch rod 12, several lock plates 13, several gaskets 14 and a positioning plate 15. The lock core seat 10 is provided with a chamber 100, and the inner wall surface of the chamber 100 is provided with an embedding groove 101. A latch rod 12 is embedded in the embedding groove 101. A key insertion hole 102 is provided on the lock core seat 10, and the lock core shell 11 is provided in the chamber 100 of the lock core seat 10. A notch 110 and a notch 111 are provided on the wall surface of the lock core shell 11. A part of the latch rod 12 is embedded in the notch 110 of the lock core shell 11, and several lock plates 13 and 14 are embedded in the notch 111. The gaskets 14 are staggeredly arranged in the lock core housing 10, and each of the lock plates 13 is provided with a keyhole 130, and the outer edge of each lock plate 13 is provided with an arc notch 131, and the arc notch 131 is provided for the latch rod 12 to be embedded, and a convex block 132 is provided on the outer edge of each lock plate 13, and the convex block 132 is provided in the notch 111 of the lock core housing 11, and a through hole 140 is provided in each of the gaskets 14, and the outer edge of each gasket 14 is provided with an arc notch 141, and the arc notch 141 is provided for the latch rod 12 to be embedded, and a flange 142 is provided on the outer edge of each gasket 14, and the flange 142 is provided in the notch 111 of the lock core housing 11, and the positioning piece 15 is provided on the lock core housing 11, a key hole 150 is provided on the positioning piece 15, and a convex body 151 is provided on two corresponding long edges of the key hole 150, so that the lock core structure of the laminated lock is formed. By inserting the key from the key insertion hole 102 of the lock core seat 10 into the key hole 150 of the positioning piece 15 and the key holes 130 of each locking piece 13 in the lock core shell 11 and the through holes 140 of each gasket 14, the guide groove on the key is aligned with the convex body 151 on the positioning piece 15, and the grooves on the two opposite wall surfaces of the key are aligned with the positions of each locking piece 13 and the gasket 14, and then the key can be rotated to drive the lock core shell 11 to rotate, so as to achieve the action of unlocking and locking; then, If the lock pieces 13 in the lock core housing 11 of a general laminated lock are inserted into the keyhole 130 with an incorrect key, the lock pieces 13 can still be rotated about 90 degrees (i.e., the angle of the notch 111 on the lock core housing 11). If the user does not fully insert the key into the bottom surface of the lock core housing 11 or the thief forcefully turns the key with an incorrect key, the keyhole 130 of the lock piece 13 or the key is easily deformed or broken, resulting in the key being inserted into the lock core and the rotation of the lock and lock is not smooth, and the anti-theft effect is easily reduced. In addition, the lock pieces 13 in the lock core housing 11 of a general laminated lock may be rotated out of position due to the vibration generated by the vehicle when the key is pulled out (such as Figure 2As shown in the figure, the key holes 130 on each locking plate 13 cannot be aligned with each other. When the key is to be inserted into the key holes 150, 130 again, the key must be slightly shaken and slowly inserted into the key holes 150, 130 of the positioning plate 15 and each locking plate 13. After the key holes 150, 130 of the positioning plate 15 and each locking plate 13 are completely aligned, the key can be completely inserted into the bottom surface of the lock core shell 11 for rotating the lock core shell 11 to achieve the purpose of unlocking. Therefore, it is extremely troublesome and time-consuming to use the key to unlock or lock. Summary of the invention
[0003] The main purpose of the present invention is to provide a lock core and key structure, which can effectively solve the shortcomings of the conventional key and lock core when in use.
[0004] The present invention provides a lock core and key structure, comprising:
[0005] A lock core, including a lock core seat, a lock core shell, a push piece, a limit piece, several lock pieces and several gaskets, a positioning piece, a latch rod, a brake bolt plate, a compression spring, a positioning baffle and a buckle ring, wherein the lock core seat is provided with a receiving chamber, the wall surface of the receiving chamber is provided with an embedding groove, the wall surface of the receiving chamber is further provided with a receiving groove, one side of the receiving groove is provided with an axial hole, the other side of the receiving groove is provided with a groove, the inner ring of the receiving chamber of the lock core seat is provided with a ring groove, the lock core seat is provided with a key insertion hole connected to the receiving chamber, and the lock core shell The invention relates to a lock core housing, wherein a groove and a notch are arranged on the wall surface of the lock core housing, a slide groove and a concave hole are arranged on the inner bottom surface of the lock core housing, and several lock plates and several gaskets are staggered and stacked in the lock core housing, each of the lock plates is provided with a key hole, an arc notch is arranged on the outer edge of each lock plate, and a convex block is arranged on the outer edge of each lock plate, and the convex block of the lock plate is arranged in the notch of the lock core housing, and each gasket is provided with a through hole, an arc notch is arranged on the outer edge of each gasket, and a flange is arranged on the outer edge of each gasket. The flange is arranged in the notch of the lock core shell, the positioning piece is arranged at the end of the lock core shell and is placed in the accommodation chamber of the lock core seat, the positioning piece is provided with a keyhole, and a convex body is respectively provided on the two corresponding long edges of the keyhole, a part of the latch rod is embedded in the cut groove of the lock core shell, and embedded in the arc notch of the lock plate and the gasket, and the other part of the latch rod is embedded in the embedding groove of the lock core seat, the brake bolt plate is arranged in the accommodation groove of the lock core seat, and a support shaft is provided on one side of the brake bolt plate, and the support shaft is arranged in the axial hole of the lock core seat. A compression spring is arranged in the groove of the lock core seat, and the compression spring pushes the brake bolt plate. The positioning baffle is arranged in the accommodation chamber of the lock core seat and is located at the bottom of the lock core shell. The positioning baffle is provided with a through hole. The positioning baffle is convexly provided with a first baffle body corresponding to the embedded groove position of the lock core seat. The positioning baffle is convexly provided with a second baffle body corresponding to the accommodation groove and the groove position of the lock core seat. The second baffle body is stopped at the outer side of the compression spring. The buckle ring is arranged on the outer side of the positioning baffle, and the buckle ring is embedded in the ring groove of the lock core seat.
[0006] A key is inserted into the lock core, two opposite walls of the key are respectively provided with a guide groove, and the wall of the key is provided with a plurality of tooth grooves, each of which corresponds to a position of each locking piece of the lock core;
[0007] The invention is characterized in that: an oblong concave surface is provided between the slide groove and the concave hole on the bottom surface of the lock core shell, the slide groove of the lock core shell is provided with a guide groove connected to the concave hole, a push piece is provided on the slide groove and the concave surface in the lock core shell, the push piece is provided with a circular flange, the flange of the push piece is located in the concave surface of the lock core shell, a through hole is provided in the flange of the push piece, a positioning guide strip is convexly provided on one side of the flange of the push piece, the positioning guide strip is located in the guide groove of the lock core shell, a limiting piece is provided in the lock core shell and located on one side of the push piece, the limiting piece is provided with a keyhole, the two corresponding long edges of the keyhole are respectively provided with an arc groove, the outer edge of the limiting piece is provided with a positioning convex body, the positioning convex body of the limiting piece is embedded in the cutting groove of the lock core shell, and the front end of the key is provided with a ring groove, which corresponds to the position of the limiting piece in the lock core shell.
[0008] The lock core and key structure of the present invention has the advantages that when the key is inserted into the lock core to unlock the door, the key must be completely inserted into the lock core before the key can be turned to drive the lock core shell to rotate and unlock the door. The key can be prevented from being rotated when it is not completely inserted into the lock core, so that the key holes of the lock plates in the lock core will not be out of place, so that the key can be smoothly inserted into the key holes of the lock plates when it is inserted again, thereby achieving the best anti-theft effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 Shown is a three-dimensional exploded view of a conventional lock core structure.
[0010] Figure 2 Shown is a schematic cross-sectional view of a conventional lock core structure.
[0011] Figure 3 Shown is a three-dimensional exploded view of a lock core according to an embodiment of the present invention.
[0012] Figure 4 Shown is a three-dimensional exploded view of the lock core from another angle according to an embodiment of the present invention.
[0013] Figure 5 Shown is a three-dimensional view of a lock core and a key according to an embodiment of the present invention.
[0014] Figure 6 Shown is a combined cross-sectional view of a lock core according to an embodiment of the present invention.
[0015] Figure 7 Shown is a schematic cross-sectional view of a lock core without a key inserted in the lock core according to an embodiment of the present invention.
[0016] Figure 8 It is a schematic cross-sectional view of a key inserted into a key hole of a lock core according to an embodiment of the present invention.
[0017] Fig. 9 The figure shows a cross-sectional schematic diagram of a lock core in which a key is inserted into a keyhole of the lock core according to an embodiment of the present invention.
[0018] Fig.10 It is a schematic diagram of the key being pulled out of the lock core according to the embodiment of the present invention.
[0019] Explanation of reference numerals: 1 lock core; 10 lock core seat; 100 receiving chamber; 101 embedding groove; 102 key insertion hole; 11 lock core shell; 110 notch; 111 notch; 12 latch rod; 13 lock plate; 130 key hole; 131 arc notch; 132 convex block; 14 gasket; 140 through hole 141 arc notch; 142 flange; 15 positioning plate; 150 key hole; 151 convex body; 2 lock core; 20 lock core seat; 200 receiving chamber; 201 embedding groove; 202 receiving groove; 203 shaft hole; 204 groove; 205 ring groove; 206 key insertion hole; 21 lock core shell; 210 notch; 211 notch; 212 slide groove; 213 concave surface ; 214 concave hole; 215 guide groove; 22 push plate; 220 flange; 221 through hole; 222 positioning guide strip; 23 limit plate; 230 keyhole; 231 arc groove; 232 positioning convex body; 24 lock plate; 240 keyhole; 241 arc notch; 242 convex block; 25 gasket; 250 through hole; 251 arc notch; 252 flange; 26 positioning plate; 260 keyhole; 261 convex body; 27 latch rod; 28 brake bolt plate; 280 support shaft; 29 compression spring; 30 positioning baffle; 300 through hole; 301 first baffle body; 302 second baffle body; 31 buckle; 4 key; 40 guide groove; 41 tooth groove; 42 ring groove. DETAILED DESCRIPTION
[0020] The technical means used by the present invention to achieve the above-mentioned purpose and effect are listed below with reference to the accompanying drawings, which are described in detail as follows:
[0021] See also Figure 3 to Figure 5As shown, the present invention provides a lock core and key structure, which is mainly provided with a lock core 2, and the lock core 2 is provided with a lock core seat 20, a lock core shell 21, a push piece 22, a limit piece 23, several lock pieces 24 and several gaskets 25, a positioning piece 26, a latch rod 27, a brake bolt plate 28, a compression spring 29, a positioning baffle 30 and a buckle 31. The lock core seat 20 is provided with a chamber 200, and the wall surface of the chamber 200 is provided with an embedding groove 201, and the wall surface of the chamber 200 is further provided with a accommodating groove 202, one side of the accommodating groove 202 is provided with an axial hole 203, and the other side of the accommodating groove 202 is provided with a groove 204, the inner ring of the chamber 200 of the lock core seat 20 is provided with a ring groove 205, and the lock core seat 20 is provided with a key The key insertion hole 206, and the lock core shell 21 is arranged in the chamber 200 of the lock core seat 20, and a groove 210 and a notch 211 are arranged on the wall surface of the lock core shell 21, and a slide groove 212 is arranged on the bottom surface of the lock core shell 21, and an oblong concave surface 213 is arranged in the slide groove 212, and a concave hole 214 is arranged in the concave surface 213, and a guide groove 215 is arranged on the slide groove 212 to communicate with the concave hole 214, and the push piece 22 is arranged on the slide groove 212 and the concave surface 213 in the lock core shell 21, and a circular flange 220 is arranged on the push piece 22, and the flange 220 is located in the concave surface 213 of the lock core shell 21, and a through hole 221 is arranged in the flange 220, and a positioning guide strip 222 is convexly provided on one side of the flange 220, and the positioning guide strip 2 22 is located in the guide groove 215 of the lock core housing 21, the limiting piece 23 is arranged in the lock core housing 21 and is located on one side of the push piece 22, the limiting piece 23 is provided with a key hole 230, and the two corresponding long edges of the key hole 230 are each provided with an arc groove 231, and the outer edge of the limiting piece 23 is provided with a positioning protrusion 232, several pieces of the locking pieces 24 and several pieces of the gaskets 25 are staggered and stacked in the lock core housing 21, each of the locking pieces 24 is provided with a key hole 240, and the outer edge of each of the locking pieces 24 is provided with an arc notch 241, and the arc notch 241 is for the latch rod 27 to be embedded, and a convex block 242 is further provided on the outer edge of each of the locking pieces 24, and the convex block 242 is arranged in the notch 211 of the lock core housing 21, and each of the gaskets 25 is provided with a through hole 250, the outer edge of each gasket 25 is provided with an arc notch 251, the arc notch 251 is for the latch rod 27 to be embedded, and a flange 252 is further provided on the outer edge of each gasket 25, the flange 252 is arranged in the notch 211 of the lock core housing 21, and the positioning piece 26 is arranged in the accommodation chamber 200 of the lock core seat 20, and a keyhole 260 is provided on the positioning piece 26, and a convex body 261 is respectively provided on two corresponding long edges of the keyhole 260, and a part of the latch rod 27 is embedded in the notch 210 of the lock core housing 21, and another part of the latch rod 27 is embedded in the embedding groove 201 of the lock core seat 20, and the brake bolt plate 28 is arranged in the accommodation groove 202 of the lock core seat 20, and a support shaft 280 is provided on one side of the brake bolt plate 28,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 the end of the brake bolt plate 28. The positioning baffle 30 is arranged in the accommodation chamber 200 of the lock core seat 20 and is located at the bottom of the lock core shell 21. The positioning baffle 30 is provided with a through hole 300. The positioning baffle 30 is convexly provided with a first baffle body 301 corresponding to the position of the embedding groove 201 of the lock core seat 20. The positioning baffle 30 corresponds to the accommodation groove 202 and the groove 204 of the lock core seat 20. A second stopper 302 is provided, the buckle 31 is provided on the outer side of the positioning stopper 30, and the buckle 31 is embedded in the ring groove 205 of the lock core seat 20. A key 4 is inserted into the lock core 2. Two opposite walls of the key 4 are provided with a guide groove 40, and the wall surface of the key 4 is provided with a plurality of tooth grooves 41, each of which corresponds to the position of each lock plate 24 of the lock core 2. A ring groove 42 is provided on the front end of the key 4, and the ring groove 42 corresponds to the position of the limit plate 23 in the lock core 2. In this way, a lock core and key structure is formed.
[0022] When assembling the lock core 2 of the present invention, please refer to Figure 3 to Figure 6As shown, the push piece 22 is first placed in the slide groove 212 of the lock core housing 21, so that the positioning guide strip 222 of the push piece 22 is placed in the guide groove 215 of the lock core housing 21, and the flange 220 of the push piece 22 is located on the concave surface 213 of the lock core housing 21, and then the limiting piece 23 is set in the lock core housing 21 and is located on one side of the push piece 22, and the positioning protrusion 232 of the limiting piece 23 is set in the groove 210 of the lock core housing 21, and several staggered and stacked lock pieces 24 and gaskets 25 are placed in the lock core housing 21, so that the protrusions 242 of each lock piece 24 and each gasket 25 The flanges 252 of the lock core housing 21 are aligned with each other and arranged in the notch 211 of the lock core housing 21, and a part of the latch rod 27 is embedded in the cut groove 210 of the lock core housing 21, and the positioning piece 26 is arranged at the end of the lock core housing 21, and the compression spring 29 is placed in the groove 204 of the lock core seat 20, the brake tumbler plate 28 is arranged in the receiving groove 202 of the lock core seat 20, and the support shaft 280 of the brake tumbler plate 28 is arranged in the shaft hole 203 of the lock core seat 20, so that the brake tumbler plate 28 can be rotated and swung with the support shaft 280 as the fulcrum, and then the lock core assembled as above is assembled. The housing 21 is placed in the chamber 200 of the lock core seat 20, and the other part of the latch rod 27 protruding from the lock core housing 21 is embedded in the embedding groove 201 of the lock core seat 20. The end of the brake bolt plate 28 is pushed by the compression spring 29 to abut against the wall surfaces of the lock pieces 24 and the gaskets 25 in the notch 211 in the lock core seat 20, and abut against the protrusions 242 of the lock pieces 24 and the flanges 252 of the gaskets 25, so that the lock pieces 24 and the gaskets 25 are blocked and positioned. Then, the positioning stopper 30 is set in the chamber 200 of the lock core seat 20. The bottom of the lock core shell 21 is penetrated by the through hole 300 of the positioning baffle 30, the first baffle body 301 of the positioning baffle 30 is embedded in the embedding groove 201 of the lock core seat 20 for positioning, and the second baffle body 302 of the positioning baffle 30 is disposed in the accommodating groove 202 and the groove 204 of the lock core seat 20, so that the brake bolt plate 28 and the compression spring 29 can be held and positioned, and then the buckle 31 is buckled in the annular groove 205 of the lock core seat 20, and then the positioning baffle 30 is positioned in the accommodating chamber 200 of the lock core seat 20, so that the overall assembly of the lock core 2 can be completed.
[0023] The lock core 2 of the present invention can be assembled on various locks for use. When the lock core 2 and the key 4 of the present invention are used, please refer to Figure 6 to Figure 10As shown, when unlocking, the key 4 is inserted into the key insertion hole 206 of the lock core seat 20, and then penetrates into the key holes 240 of each lock plate 24 in the lock core shell 21, the through holes 250 of each gasket 25 and the key hole 230 of the limit plate 23 through the key hole 260 of the positioning plate 26. When the bottom end of the key 4 is inserted into the concave hole 214 on the bottom surface of the lock core shell 21, the key 4 is inserted into the through hole 221 of the push plate 22, so that the push plate 22 is pushed by the bottom end of the key 4 and slides on the slide groove 212 in the lock core shell 21. The positioning guide strip 222 on the push plate 22 and the guide groove 215 of the lock core shell 21 are guided to make the push plate 22 stably slide in the slide groove 212 of the lock core shell 21, and one end of the push plate 22 pushes the brake tumbler plate 28 to rotate (as shown in FIG. Figure 8 , Fig. 9 As shown in the figure, the brake tumbler plate 28 rotates and squeezes the compression spring 29, so that the compression spring 29 is in an elastically compressed state, and the brake tumbler plate 28 is pushed by the push plate 22 to rotate into the accommodating groove 202, and no longer blocks the protrusions 242 of each lock plate 24 and the flanges 252 of each gasket 25, and the ring groove 42 of the key 4 corresponds to the position of the limit plate 23, so that the key 4 can be turned and the lock core shell 21 can be driven to rotate, thereby completing the unlocking action; and when the key 4 is not fully inserted into the lock core 2 (as shown in the figure), the brake tumbler plate 28 rotates and squeezes the compression spring 29, so that the compression spring 29 is in an elastically compressed state, and the brake tumbler plate 28 is pushed by the push plate 22 to rotate into the accommodating groove 202, and no longer blocks the protrusions 242 of each lock plate 24 and the flanges 252 of each gasket 25, and the ring groove 42 of the key 4 corresponds to the position of the limit plate 23, Figure 6 , Figure 7 As shown in FIG. 2 , the protrusions 242 of each locking plate 24 and the flanges 252 of each gasket 25 in the lock core housing 21 are blocked by the brake tumbler plate 28 and cannot be rotated (as shown in FIG. 2 ). Figure 7 As shown in the figure, the user inserts the correct key 4 into the key insertion hole 206 of the lock core seat 20, the key holes 260, 240, 230 of each locking plate 24 and the limiting plate 23. However, when the key 4 is not completely inserted into the bottom of the lock core housing 21, the protrusions 242 of each locking plate 24 and the flanges 252 of each gasket 25 are still blocked by the brake bolt plate 28 and cannot be rotated. Therefore, the key 4 must be inserted into the bottom of the lock core housing 21 so that the push plate 22 is pushed by the bottom end of the key 4 and slides. The push plate 22 pushes the push plate 25 and the push plate 25 pushes the push plate 25. The tumbler plate 28 rotates and no longer blocks the protrusions 242 of each locking plate 24 and the flanges 252 of each gasket 25, so that the key 4 can be turned and the lock core housing 21 can be driven to rotate to complete the unlocking action; and when the key 4 is reset after unlocking, the protrusions 242 of each locking plate 24 and the flanges 252 of each gasket 25 are aligned with each other again, and then the key 4 is pulled out of the lock core 2, and the push plate 22 is no longer pushed by the key 4, and the tumbler plate 28 and the push plate 22 are elastically restored by the compression spring 29 and pushed back to the original position (such as Figure 6 , Figure 7 As shown in FIG. 2 ), the tumbler plate 28 is again held by the protrusions 242 of each locking plate 24 and the flanges 252 of each gasket 25 in the lock core housing 21, and each locking plate 24 and each gasket 25 cannot be rotated; when the key 4 is 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. 2 ), the tumbler plate 28 is again held by the protrusions 242 of each locking plate 24 and the flanges 252 of each gasket 25 in the lock core housing 21, and each locking plate 24 and each gasket 25 cannot be rotated; Fig.10As shown in the figure, the positioning protrusion 232 of the limiting piece 23 is embedded in the groove 210 of the lock core shell 21 to limit the rotation, so that the key 4 cannot rotate arbitrarily during the process of being pulled out from the lock core 2 and can only be pulled out straightly. Therefore, the key 4 can be prevented from rotating when the lock core 2 is pulled out, so that the key holes 240 of each lock plate 24 in the lock core 2 will not be out of place, so that the key 4 can be smoothly inserted into the key holes 240 of each lock plate 24 when it is inserted again.
[0024] The present invention utilizes the mutual cooperation of the slide groove 212, the concave surface 213, the guide groove 215 provided on the bottom of the lock core shell 21 and the flange 220 and the positioning guide strip 222 provided on the push piece 22, so that the key 4 can be inserted into the lock core 2 more smoothly and the movement of the push piece 22 is more stable. 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 forcefully rotating the lock core 2 and causing deformation or breakage, thereby increasing the service life of the key 4 and the lock core 2 structure and having an excellent anti-theft effect. In addition, the limiting plate 23 is arranged in the lock core shell 21 to prevent the key 4 from not rotating when the lock core 2 is not completely pulled out, so that the key holes 240 of each lock plate 24 in the lock core 2 will not be out of place, so that the key 4 can be smoothly inserted into the key holes 240 of each lock plate 24 when it is inserted into the key holes 240 of each lock plate 24 again.
[0025] In summary, the present invention has indeed achieved the intended purpose and effect, and is more ideal and practical than the conventional technology. The above-mentioned embodiments are only specific descriptions of the preferred embodiments of the present invention. The embodiments are not intended to limit the patent scope of the present invention. For example, any other equivalent changes and modifications that are accomplished without departing from the technical means disclosed by the present invention should be included in the patent scope covered by the present invention.
Claims
1. A lock core and key structure, comprising: A lock core includes a lock core seat, a lock core shell, a push piece, a limit piece, several lock pieces and several gaskets, a positioning piece, a latch rod, a brake bolt plate, a compression spring, a positioning baffle and a buckle ring, wherein: The lock core seat is provided with a chamber, a groove is provided on the wall of the chamber, a groove is provided on the wall of the chamber, an axial hole is provided on one side of the groove, a groove is provided on the other side of the groove, a ring groove is provided in the inner ring of the chamber of the lock core seat, a key insertion hole connected to the chamber is provided on the lock core seat, and the lock core shell is arranged in the chamber of the lock core seat, a groove and a notch are provided on the wall of the lock core shell, a slide groove and a concave hole are provided on the inner bottom surface of the lock core shell, several lock plates and Several gaskets are stacked and arranged in the lock core shell in an interlaced manner, each of the lock plates is provided with a keyhole, each of the lock plates is provided with an arc notch on the outer edge, and a convex block is provided on the outer edge of each lock plate, and the convex block of the lock plate is arranged in the notch of the lock core shell, and each of the gaskets is provided with a through hole, each of the gaskets is provided with an arc notch on the outer edge, and a flange is provided on the outer edge of each gasket, and the flange of the gasket is arranged in the notch of the lock core shell, and the positioning piece is arranged at the end of the lock core shell and placed in the lock core. The keyhole is provided on the positioning plate, and a convex body is provided on each of the two corresponding long edges of the keyhole. A part of the latch rod is embedded in the cut groove of the lock core shell and in the arc notch of the lock plate and the gasket. Another part of the latch rod is embedded in the embedding groove of the lock core seat. The brake bolt plate is arranged in the receiving groove of the lock core seat. A support shaft is provided on one side of the brake bolt plate, and the support shaft is arranged in the axial hole of the lock core seat. A compression spring is arranged in the groove of the lock core seat. The compression spring pushes against the brake bolt plate, the positioning baffle is arranged in the accommodation chamber of the lock core seat and is located at the bottom of the lock core shell, the positioning baffle is provided with a through hole, the positioning baffle is convexly provided with a first baffle body corresponding to the embedding groove position of the lock core seat, the positioning baffle is convexly provided with a second baffle body corresponding to the accommodation groove and the groove position of the lock core seat, the second baffle body is stopped at the outer side of the compression spring, the buckle is arranged on the outer side of the positioning baffle, and the buckle is embedded in the ring groove of the lock core seat; A key is inserted into the lock core, two opposite walls of the key are respectively provided with a guide groove, and the wall of the key is provided with a plurality of tooth grooves, each of which corresponds to a position of each locking piece of the lock core; The feature is that: an oblong concave surface is provided between the slide groove and the concave hole on the bottom surface of the lock core shell, the slide groove of the lock core shell is provided with a guide groove connected to the concave hole, a push piece is provided on the slide groove and the concave surface in the lock core shell, the push piece is provided with a circular flange, the flange of the push piece is located in the concave surface of the lock core shell, a through hole is provided in the flange of the push piece, a positioning guide strip is convexly provided on one side of the flange of the push piece, the positioning guide strip is located in the guide groove of the lock core shell, a limiting piece is provided in the lock core shell and located on one side of the push piece, the limiting piece is provided with a keyhole, the two corresponding long edges of the keyhole are respectively provided with an arc groove, the outer edge of the limiting piece is provided with a positioning convex body, the positioning convex body of the limiting piece is embedded in the cutting groove of the lock core shell, and the front end of the key is provided with a ring groove, which corresponds to the position of the limiting piece in the lock core shell.