CN115012734A - Lock core and key structure - Google Patents

Abstract

The invention provides a lock core and key structure, wherein the lock core is composed of a lock core shell, a lock sheet seat, a plurality of compression springs, a plurality of lock sheets, a positioning sheet, a clamping piece, two springs and a positioning fastener, wherein the positioning sheet and the lock sheet seat are arranged in a containing chamber of the lock core shell, the plurality of compression springs are respectively arranged in each containing chamber of the lock sheet seat, the plurality of lock sheets are mutually overlapped in pairs and are arranged in a lock sheet slot of the lock sheet seat, a blocking body of each lock sheet is respectively blocked in each compression spring, the clamping piece and the two springs are arranged in a notch of the lock sheet seat, the two springs are abutted against the clamping piece, the positioning fastener is arranged in a ring slot of the lock core shell, tooth slots are arranged in guide slots on two opposite wall surfaces of the key corresponding to the positioning tooth positions of each lock sheet of the lock core, thus, each lock sheet is arranged in parallel displacement, each lock sheet can not rotate, the key insertion holes of the lock pieces can not generate rotation dislocation, and the key can be conveniently inserted for use.

Description

Lock core and key structure

Technical Field

The invention relates to a lock core and a key structure, in particular to a lock core and a key structure, wherein each lock piece is arranged in a parallel displacement mode, so that each lock piece cannot rotate, a key jack cannot generate rotation dislocation, and a key can be conveniently inserted and used.

Background

Referring to fig. 1 and 2, a lock cylinder 1 is mainly provided, the lock cylinder 1 includes a lock cylinder housing 10, a lock cylinder seat 11, a locking member 12, a plurality of locking plates 13, a plurality of gaskets 14, and a positioning plate 15, the lock cylinder housing 10 has a chamber 100, an inner wall of the chamber 100 has an insertion groove 101, the locking member 12 is inserted in the insertion groove 101, the lock cylinder housing 10 has a key insertion hole 102, the lock cylinder seat 11 is disposed in the chamber 100 of the lock cylinder housing 10, the lock cylinder seat 11 has a cutting groove 110 and a notch 111 on a wall thereof, a portion of the locking member 12 is inserted in the cutting groove 110 of the lock cylinder seat 11, the locking plates 13 and the gaskets 14 are alternately disposed in the lock cylinder seat 10, the locking plates 13 have a key hole 130, the gaskets 14 have a through hole 140, and the outer edges of the locking plates 13 and the gaskets 14 have an arc 131, 141, the arc notches 131, 141 are for the engaging member 12 to be embedded, a protrusion 132 is further disposed on the outer edge of each locking plate 13, a flange 142 is further disposed on the outer edge of each gasket 14, the protrusion 132 and the flange 142 are disposed in the notch 111 of the locking plate holder 11, the positioning plate 15 is disposed on the end of the locking plate holder 11 and disposed in the chamber 100 of the lock cylinder housing 10, a key hole 150 is disposed on the positioning plate 15, and a protrusion 151 is disposed on each of two corresponding long edges of the key hole 150, so that the lock cylinder structure of the laminated lock is obtained, by inserting the key 2 into the key hole 150 of the positioning plate 15 from the key insertion hole 102 of the lock cylinder housing 10, the key hole 130 of each locking plate 13 in the locking plate holder 11 and the through hole 140 of each gasket 14, the guide groove 20 on the key 2 is aligned with the protrusion 151 on the positioning plate 15, and the tooth grooves 21 on two opposite wall surfaces of the key 2 are aligned with the positions of each locking plate 13 and gasket 14, the lock plate base 11 can be driven to rotate by rotating the lock plate base to achieve the actions of unlocking and locking; however, the conventional laminated lock requires a plurality of lock plates 13 and a plurality of washers 14 to be alternately stacked in the lock plate holder 11, which requires a lot of components and is time-consuming and troublesome to manufacture and assemble, and the lock plates 13 in the lock plate holder 11 of the conventional laminated lock are rotated and dislocated due to the vibration generated when the vehicle is running after the key 2 is pulled out (as shown in fig. 2), so that the key holes 130 of the lock plates 13 cannot be aligned with each other, when the key 2 is to be inserted into the key holes 150, 130, the key 2 needs to be slightly shaken to guide the lock plates 13, and the key 2 can be completely inserted into the inner bottom surface of the lock plate holder 11 to rotate the lock plate holder 11 for unlocking, so that it is very troublesome and troublesome to insert the key 2 or unlock the lock, and the key holes 130 of the lock plates 13 may be reamed to unlock the key 2 after long-term use, so that the key 2 cannot be guided to each lock the lock plate 13.

Disclosure of Invention

The main objective of the present invention is to provide a lock core and key structure, which can effectively solve the disadvantages of the conventional lock core and key in manufacturing, assembling and using.

The invention provides a lock core and key structure, comprising:

a lock core, which comprises a lock core shell, a lock sheet seat, a plurality of compression springs, a plurality of lock sheets, a positioning sheet, a clamping piece, two springs and a positioning fastener, wherein the lock core shell is internally provided with a containing chamber, the inner wall surface of the containing chamber is vertically provided with an embedding groove and an arc groove, the containing chamber of the lock core shell is internally provided with an annular groove, the lock core shell is provided with a key insertion hole communicated with the containing chamber, the lock sheet seat is arranged in the containing chamber of the lock core shell, the wall surface of the lock sheet seat is vertically provided with a notch and a convex body, the upper part and the lower part in the notch are respectively provided with a positioning groove, the wall surface of the lock sheet seat is transversely provided with a plurality of lock sheet insertion grooves penetrating through the lock sheet seat, one end part of each lock sheet insertion groove is provided with an accommodating groove which is oppositely arranged and vertically staggered, the other end part of each lock sheet insertion groove is communicated with the notch on the wall surface, one end surface of the lock sheet seat is provided with a key insertion hole communicated with each lock insertion groove, several compression springs are set in the slots of the lock plate seat, several lock plates are set in the slots of the lock plate seat in two superposed mode, the middle of the lock plates is set with a key hole, the key hole of each lock plate is set with a positioning latch, one side of each lock plate is set with a baffle, the baffle is set in the slot of the lock plate seat and holds the compression spring, the other side of each lock plate is set with a gap corresponding to the detent piece, the positioning piece is set on one end of the lock plate seat and set in the chamber of the lock core shell, the positioning piece is set with a key hole, the key hole of the positioning piece is set with a convex body on the two corresponding long edges, the detent piece is set in the slot of the lock plate seat, the upper and lower parts of the detent piece are set with a positioning groove, the two springs are set in the two positioning grooves of the detent piece and the two positioning grooves of the lock plate seat, the positioning fastener is embedded in the annular groove of the lock cylinder shell;

the key is inserted into the lock core, two opposite wall surfaces of the key are respectively provided with a guide groove, and the wall surfaces of the guide grooves are provided with tooth grooves corresponding to the positioning latch positions of the locking plates of the lock core.

The lock core and key structure of the invention has the advantages that: the whole structure is simple, the manufacture and the assembly are very convenient and fast, the key inserting holes of the lock plates can not generate rotation dislocation, the keys can be conveniently inserted and stably rotated, and the optimal anti-theft effect can be achieved.

Drawings

Fig. 1 is an exploded perspective view of a conventional lock cylinder and key.

Fig. 2 is a cross-sectional view of a conventional lock core structure.

Fig. 3 is an exploded perspective view of a lock cylinder and a key according to an embodiment of the present invention.

Fig. 4 is a partial perspective assembly view of the lock core structure according to the embodiment of the present invention.

Fig. 5 is an assembled cross-sectional view of a lock cylinder according to an embodiment of the present invention.

FIG. 6 is a cross-sectional view of a lock barrel during locking according to an embodiment of the present invention.

Fig. 7 is a schematic view showing a key inserted into a lock cylinder according to an embodiment of the present invention.

Fig. 8 is a schematic cross-sectional view of a key inserted into a lock cylinder according to an embodiment of the present invention.

FIG. 9 is a schematic view of a rotating blade holder according to an embodiment of the present invention.

The reference numbers illustrate:

1 Lock core 10 Lock core case 100 chamber

101 caulking groove 102 key insertion hole 11 lock plate seat

110 slot 111 notch 12 catch

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 key 20 groove 21 tooth space

3 lock core 30 lock core case 300 chamber

301 caulking groove 302 arc groove 303 ring groove

304 key jack 31 lock piece seat 310 notch

311 positioning groove 312 convex body 313 locking plate slot

314 receiving slot 315 key insertion hole 316 coupled with the rotary body

32 compression spring 33 key cylinder 330 key receptacle

331 positioning latch 332 notch 333

34 positioning piece 340 key insertion hole 341 convex body

35 clamping piece 350 positioning groove 36 spring

37 positioning fastener

4 key 40 groove 41 gullet

Detailed Description

In order to achieve the above-mentioned objects and advantages, the present invention provides a method for implementing the following embodiments, which are shown in the accompanying drawings and described in the following:

referring to fig. 3 and 4, an embodiment of the present invention mainly includes a lock core 3, the lock core 3 includes a lock core housing 30, a lock plate seat 31, a plurality of compression springs 32, a plurality of lock plates 33, a positioning plate 34, a locking member 35, two springs 36 and a positioning fastener 37, wherein the lock core housing 30 has a chamber 300 therein, an inner wall of the chamber 300 has an insertion groove 301 and an arc groove 302, the chamber 300 of the lock core housing 30 has an annular groove 303 therein, the lock core housing 30 has a key insertion hole 304 communicated with the chamber 300, the lock plate seat 31 is disposed in the chamber 300 of the lock core housing 30, the lock plate seat 31 has a slot 310 and a protrusion 312 disposed on the wall thereof, the slot 310 has a positioning groove 311 disposed on each of upper and lower portions thereof, the lock plate seat 31 has a plurality of insertion grooves 313 transversely disposed on the wall thereof and penetrating through the lock plate seat 31, one end of each locking plate slot 313 is provided with a containing slot 314 which is oppositely arranged and staggered up and down, the other end of each locking plate slot 313 is communicated with the notch 310 on the wall surface, one end surface of the locking plate base 31 is provided with a key inserting hole 315 communicated with each locking plate slot 313, the other end surface of the locking plate base 31 is convexly provided with a linkage rotating body 316, a plurality of compression springs 32 are respectively arranged in each containing slot 314 of the locking plate base 31, a plurality of locking plates 33 are mutually overlapped in pairs and arranged in each locking plate slot 313 of the locking plate base 31, a key inserting hole 330 is respectively arranged in the middle of each locking plate 33, a positioning latch 331 is convexly arranged in each key inserting hole 330 of each locking plate 33, a baffle body 332 is convexly arranged on one side edge of each locking plate 33, the baffle body 332 is arranged in each containing slot 314 of the locking plate base 31 and is used for baffle the compression spring 32, a notch 333 is respectively arranged on the other side edge of each locking plate 33, the positioning plate 34 is disposed on one end of the lock plate seat 31 and is placed in the accommodating chamber 300 of the lock cylinder shell 30, a key inserting hole 340 is disposed on the positioning plate 34, a convex body 341 is disposed on each of two corresponding long edges of the key inserting hole 340, the locking member 35 is disposed in the notch 310 of the lock plate seat 31, a positioning groove 350 is disposed on each of the upper and lower portions of the inner side of the locking member 35, the two springs 36 are disposed in the two corresponding positioning grooves 350 of the locking member 35 and the two corresponding positioning grooves 311 of the lock plate seat 31, and the positioning fastener 37 is embedded in the annular groove 303 of the lock cylinder shell 30; a key 4, which is inserted into the key insertion hole of the lock core 3, wherein two opposite wall surfaces of the key 4 are respectively provided with a guide groove 40, and the wall surface of the guide groove 40 is provided with tooth grooves 41 corresponding to the positions of the positioning teeth 331 of the lock plates 33 of the lock core 3, thus obtaining a lock core and key structure.

When the lock core 3 of the present invention is assembled, please refer to fig. 3-6, first, a plurality of compression springs 32 are respectively placed in each containing groove 314 of the lock plate seat 31, two lock plates 33 are oppositely placed in a lock plate slot 313 of the lock plate seat 31, two lock plates 33 are mutually stacked in the lock plate slot 313, the blocking body 332 of each lock plate 33 is disposed in the containing groove 314 of the lock plate seat 31 and is blocked in the compression spring 32, the notches 333 of each lock plate 33 are mutually aligned, one end of each spring 36 is respectively disposed in two positioning grooves 311 of the lock plate seat 31, the inner side of the locking piece 35 is disposed in the notch 310 of the lock plate seat 31 and the notch 333 of each lock plate 33, the other end of each spring 36 is respectively disposed in two positioning grooves 350 of the locking piece 35, the locking piece 35 is elastically pushed by the two springs 36, and the positioning piece 34 is disposed in a containing chamber 300 of the lock core housing 30, the above-mentioned locking plate 33 and compression spring 32, the detent piece 35 and the locking plate seat 31 of two springs 36 assembled are put into the chamber 300 of the lock core shell 30, the outside part of the detent piece 35 corresponds to the position of the caulking groove 301 of the lock core shell 30, when the locking plate seat 31 is put into the lock core shell 30, the two springs 36 push the detent piece 35 outwards, so that the inside part of the detent piece 35 is separated from the gap 333 of each locking plate 33, and the outside part of the detent piece 35 is inlaid in the caulking groove 301 of the lock core shell 30, each locking plate 33 is pushed by the elastic return of the compression spring 32 to be relatively horizontal displacement, the convex body 312 of the locking plate seat 31 is arranged in the arc groove 302 of the lock core shell 30, and then the positioning fastener 37 is arranged in the annular groove 303 of the lock core shell 30, and the components such as the locking plate seat 31 are positioned in the chamber 300 of the lock core shell 30, thus the whole assembly of the lock core 3 can be completed; the lock core 3 of the invention does not need to arrange a plurality of gaskets in the known laminated lock core, can greatly reduce the manufacture and assembly of components, leads the integral structure to be more simplified, and is very convenient and fast to assemble integrally.

The lock core 3 of the present invention can be assembled to various locks for use, and the lock core 3 and the key 4 of the present invention are used, please refer to fig. 5-9, when unlocking, the key 4 is inserted into the key insertion hole 304 of the lock core housing 30 and goes through the key insertion hole 340 of the positioning plate 34 to go deep into the key insertion hole 330 of each locking plate 33 in the locking plate seat 31, the key 4 is guided by the guiding groove 40 and the convex body 341 of the positioning plate 34, so that the key 4 can be stably inserted into the lock core 3 without shaking, when the key 4 is inserted into the key insertion hole 330 of each locking plate 33, the tooth groove 41 of the key 4 corresponds to the positioning teeth 331 of each locking plate 33, so that each locking plate 33 can be pushed against horizontal displacement (as shown in fig. 7 and 8), when each locking plate 33 moves horizontally, the blocking body 332 thereof pushes against the compression spring 32, so that each compression spring 32 is in an elastic compression state, and the gap 333 of each locking plate 33 is aligned with each other, the notches 333 are aligned with the notches 310 of the lock plate holder 31, so that the inner portion of the locking member 35 is disposed in the notches 333, and thus, the key 4 can be rotated and the lock plate holder 31 can be driven to rotate (as shown in fig. 9), the outer portion of the locking member 35 can be retracted into the notches 310 of the lock plate holder 31, the locking member 35 retracts to press the two springs 36 to be in an elastic compression state, the locking member 35 rotates with the lock plate holder 31 and is not embedded into the embedding groove 301 of the lock core housing 30, so that the locking member 35 is rotated away from the embedding groove 301 of the lock core housing 30, and the unlocking operation is completed; when the key 4 is to be reset to be taken out or locked after unlocking, the locking plate seat 31 is rotated by the key 4, so that the clamping piece 35 is aligned with the embedding groove 301 of the lock core shell 30 again, the two springs 36 elastically return to push the clamping piece 35 outwards, the outer side part of the clamping piece 35 is embedded in the embedding groove 301 of the lock core shell 30 again, the key 4 is drawn out of the lock core 3 (as shown in fig. 5 and 6), after the key 4 is drawn out, each locking plate 33 in the locking plate seat 31 is not limited by the pushing of the key 4, and the blocking body 332 of each locking plate 33 is pushed back to the original position by the elastic return of the compression spring 32, so that the locking action can be completed; the lock core 3 of the present invention can solve the problem that the key of the conventional lock core structure can rotate due to the horizontal displacement of the lock sheets 33 by overlapping and assembling the two lock sheets 33 in the lock sheet slot 312 of the lock sheet seat 31, and can ensure the stable and reliable locking of the lock core 3 by embedding the clamping piece 35 in the embedding groove 301 of the lock core shell 30, and the key insertion holes 330 of the lock sheets 33 in the lock core 3 of the present invention can not rotate disoriently, so that the key 4 can be smoothly inserted and used when being inserted into the key insertion holes 330 of the lock sheets 33 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. A lock core and key structure, characterized by, including:

a lock core, which comprises a lock core shell, a lock sheet seat, a plurality of compression springs, a plurality of lock sheets, a positioning sheet, a clamping piece, two springs and a positioning fastener, wherein a chamber is arranged in the lock core shell, an embedding groove and an arc groove are arranged on the inner wall surface of the chamber in the vertical direction, an annular groove is arranged in the chamber of the lock core shell, a key insertion hole communicated with the chamber is arranged on the lock core shell, the lock sheet seat is arranged in the chamber of the lock core shell, a notch groove and a convex body are arranged on the wall surface of the lock sheet seat in the vertical direction, a positioning groove is respectively arranged on the upper part and the lower part in the notch groove, a plurality of lock sheet insertion grooves penetrating through the lock sheet seat are transversely arranged on the wall surface of the lock sheet seat, an accommodating groove which is oppositely arranged and is staggered up and down is arranged on one end part of each lock sheet, the other end part of each lock sheet insertion groove is communicated with the notch groove on the wall surface, a key insertion hole communicated with each lock sheet insertion groove is arranged on one end surface of the lock sheet seat, several compression springs are set in the slots of the lock plate seat, several lock plates are set in the slots of the lock plate seat in two superposed mode, the middle of the lock plates is set with a key hole, the key hole of each lock plate is set with a positioning latch, one side of each lock plate is set with a baffle, the baffle is set in the slot of the lock plate seat and holds the compression spring, the other side of each lock plate is set with a gap corresponding to the detent piece, the positioning piece is set on one end of the lock plate seat and is set in the chamber of the lock core shell, the positioning piece is set with a key hole, the key hole of the positioning piece is set with a convex body on the two corresponding long edges, the detent piece is set in the slot of the lock plate seat, the upper and lower parts of the detent piece are set with a positioning groove, the two springs are set in the two positioning grooves of the detent piece and the two positioning grooves of the lock plate seat, the positioning fastener is embedded in the annular groove of the lock cylinder shell;

the key is inserted into the lock core, two opposite wall surfaces of the key are respectively provided with a guide groove, and the wall surfaces of the guide grooves are provided with tooth grooves corresponding to the positioning latch positions of the locking plates of the lock core.

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