CN211647661U - Lock core structure - Google Patents

Abstract

The invention discloses a lock core structure, which comprises a lock shell, wherein a lock liner hole is arranged in the lock shell, a lock liner is arranged in the lock liner hole, a key hole for inserting a key is formed in the lock liner, the lock liner further comprises a front locking pin component and a matching locking component, the lock liner is provided with a first accommodating groove, a second accommodating groove is formed in the outer peripheral surface of the lock liner, the front locking pin component comprises a front locking pin, a longitudinal elastic element and a transverse elastic element, the length of the first accommodating groove is greater than that of the front locking pin, a first matching part and a second matching part are arranged on the front locking pin, a third matching part is further arranged on the front locking pin, a locking table surface is arranged at the bottom of the first accommodating groove, an unlocking groove for embedding the third matching part is arranged beside the locking table surface, the length of the first accommodating groove in the lock core structure is longer than that of the front locking pin, when the key is inserted, the tooth pattern of the key is matched with the matching locking component, this further improves the security of the lock cylinder and prevents technical opening by lawbreakers.

Description

Lock core structure

[ technical field ] A method for producing a semiconductor device

The invention relates to the field of locks, in particular to a lock core structure.

[ background of the invention ]

At present, the front locking pin of the lock cylinder in the prior art is matched with the teeth of the key through the pin tumbler type component or the leaf type component, and after a correct key is inserted, the teeth of the correct key are matched with the pin tumbler type component or the leaf type component to unlock, so that the safety coefficient of the lock cylinder is not high, and lawless persons can easily unlock the lock cylinder by the aid of the technology, and therefore the anti-theft lock cylinder with the safety performance is needed.

[ summary of the invention ]

In order to solve the above problems, the present invention provides a lock core structure which requires the correct length of the key for unlocking, in addition to the correct matching of the teeth of the key with the cylinder assembly or the leaf assembly.

In order to achieve the purpose, the invention provides the following technical scheme:

a lock core structure comprises a lock shell, wherein a lock core hole is formed in the lock shell, a lock core is rotatably arranged in the lock core hole, a key hole for inserting a key is formed in the lock core, the lock core further comprises a front locking pin assembly and a matching locking assembly matched with a key bit pattern, a first accommodating groove used for accommodating the front locking pin assembly and communicated with the key hole is formed in the outer peripheral surface of the lock core, a second accommodating groove respectively communicated with the key hole and the first accommodating groove and used for accommodating the matching locking assembly is formed in the outer peripheral surface of the lock core, the front locking pin assembly comprises a front locking pin, a longitudinal elastic element and a transverse elastic element, the length of the first accommodating groove is larger than that of the front locking pin, a first matching part matched with the key and a second matching part matched with the matching locking assembly are arranged on the front locking pin, the front locking pin is further provided with a third matching part, a locking table top is arranged at the bottom of the first accommodating groove, an unlocking groove for embedding the third matching part is formed beside the locking table top, the locking table top is higher than or equal to the top surface of the unlocking groove, the longitudinal elastic element is located between the front end of the front locking pin and one side wall of the first accommodating groove, the transverse elastic element is located between the lock liner and the front locking pin, the third matching part is aligned with the unlocking groove in position in an unlocking state, the transverse elastic element acts on the third matching part to be separated from the unlocking groove to enable the top of the front locking pin to be clamped on the lock shell in locking, and the longitudinal elastic element acts on the third matching part to be retracted to the locking table top from the unlocking groove.

As a preferred embodiment, further defined is: the hole formed by the first accommodating groove and the key hole is a first through hole, the hole formed by the first accommodating groove and the second accommodating groove is a second through hole, the first matching portion penetrates through the first through hole to be matched with the key, and the matching locking assembly penetrates through the second through hole to be matched with the second matching portion.

As a preferred embodiment, further defined is: the longitudinal elastic element comprises an extending column which is fixedly connected with the front locking pin and extends along the longitudinal direction, a first return spring is sleeved on the extending column, one end of the first return spring acts on the side wall of the first accommodating groove, and the other end of the first return spring acts on the side face, connected with the extending column, of the front locking pin.

As a preferred embodiment, further defined is: the longitudinal elastic element comprises a front end face positioned on the front locking pin, an opening is formed in the front end face, a first return spring is arranged in the opening, one end of the first return spring acts on the side wall of the first accommodating groove, and the other end of the first return spring acts on the bottom face of the opening.

As a preferred embodiment, further defined is: horizontal elastic element is including marble and second reset spring, second cooperation portion is provided with and is used for the holding the first holding hole of marble, a tip of marble is equipped with and is used for the holding part second reset spring's second holding hole, and the aperture in first holding hole is greater than the aperture in second holding hole, second reset spring establishes between the hole bottom in first holding hole and second holding hole the effect of second reset spring is down, another tip of marble supports the tank bottom at first holding groove.

As a preferred embodiment, further defined is: the mating locking assembly is a leaf assembly.

As a preferred embodiment, further defined is: the cooperation locking assembly comprises a plurality of leaf sets, each leaf set comprises a plurality of leaves, each leaf is provided with a protruding block, a part of each leaf penetrates through the second through hole and then extends into the first accommodating groove, gaps are formed in two sides of each protruding block, when the key is inserted, the leaves are driven by the tooth patterns of the key to move transversely to enable the protruding blocks to be longitudinally aligned to form protruding strips and two sides of each protruding block to be longitudinally aligned to form two abdicating notch grooves, when the lock liner is driven to rotate by the key, the second matching portions are matched with the protruding strips or/and the second matching portions are matched with the abdicating notch grooves, the cooperation locking assembly further comprises a third return spring, and after the key is pulled out, the third return spring acts on the leaves in each leaf set to be staggered.

As a preferred embodiment, further defined is: the number of the page groups is equal to that of the second accommodating grooves, each page group comprises three overlapped pages, one end of the third reset spring acts on one outer side of each page, and the other end of the third reset spring acts on the other outer side of each page.

As a preferred embodiment, further defined is: be equipped with in the open slot at lock shell middle part and dial and drag, the front face locking pin still be equipped with dial linkage portion and the fourth cooperation portion that drags the linkage, the downthehole work that is equipped with of lock courage supplies when being located the lock state the bevel connection groove that the part card of fourth cooperation portion is gone into, work as insert the key and drive when the lock courage rotates, fourth cooperation portion breaks away from behind the block in bevel connection groove and take in completely make in the first storage tank second cooperation portion with protruding strip cooperation or/and second cooperation portion cooperatees with the breach groove of stepping down, work as the key drive the lock courage rotate first storage tank with during the bevel connection groove is aligned, second reset spring effect the part top of fourth cooperation portion is gone into in the bevel connection groove.

As a preferred embodiment, further defined is: the side face of the lock core is provided with a third accommodating groove communicated with the key hole, a side face locking pin assembly is arranged in the third accommodating groove and comprises a side face locking pin and a fourth reset spring acting on the side face locking pin to reset, and a clamping mechanism used for locking or unlocking the lock core relative to the lock shell is arranged between the side face locking pin and the lock shell.

As a preferred embodiment, further defined is: block mechanism is including setting up the protruding and setting of card in the outside of side stop pin the inboard first piece that stretches into the keyhole, the inner wall in lock courage hole be equipped with the edge that stretches up of the axis direction in lock courage hole and with the spout of the protruding looks adaptation of card, be equipped with on the inner wall in lock courage hole around the axis in lock courage hole extend and with the arc type recess of the protruding looks adaptation of card, the spout with arc type recess is crisscross, when the locking state, the protruding part card of card is gone into in the spout, when inserting the key, the lateral part of key front end is contradicted first piece that stretches out and drives follow the protruding spout of card removes extremely from the crossing department of spout and arc type recess makes the lock courage for lock shell rotation unblock, works as after the lock courage is located extracts the key when latched position, fourth reset spring effect the protruding follow of card the crossing department of spout and arc type recess slides into in the spout The lock cylinder is locked relative to the lock shell.

The beneficial effects of the invention are as follows: the length of the first accommodating groove is longer than that of the front locking pin, when the key is inserted, the tooth pattern of the key is matched with the matched locking assembly, and in the process of inserting the key, the middle part of the front end of the key abuts against the first matching part of the front locking pin and drives the position of the third matching part of the front locking pin to be aligned with the unlocking groove, so that the lock container can be rotated to unlock.

[ description of the drawings ]

FIG. 1 is a structural diagram of the invention;

FIG. 2 is one of the exploded views created by the present invention;

FIG. 3 is a second exploded view of the present invention;

FIG. 4 is a front view of the invention;

FIG. 5 is a cross-sectional view of FIG. 4 taken along line A-A after a key has been inserted;

FIG. 6 is a cross-sectional view of FIG. 4 taken at A-A after the key has been removed;

FIG. 7 is a cross-sectional view taken at B-B of FIG. 4;

FIG. 8 is a side view of the invention;

FIG. 9 is a cross-sectional view at C-C of FIG. 8;

FIG. 10 is a structural view of the cooperative locking assembly;

FIG. 11 is a structural view of the cylinder;

FIG. 12 is a structural view of one embodiment of the front locking pin;

fig. 13 is a structural view of another embodiment of the front side locking pin.

[ detailed description ] embodiments

The invention is described in further detail below with reference to the following figures and detailed description:

as shown in fig. 1-13, a lock core structure includes a lock housing 11, a lock cylinder hole 14 is provided in the lock housing 11, a lock cylinder 15 is rotatably provided in the lock cylinder hole 14, a key hole 17 for inserting a key 16 is provided on the lock cylinder 15, a front surface locking pin assembly 2 and a matching locking assembly 3 matched with a tooth pattern of the key 16 are further included, a first receiving groove 151 for receiving the front surface locking pin assembly 2 and communicated with the key hole 17 is provided on an outer circumferential surface of the lock cylinder 15, a second receiving groove 152 respectively communicated with the key hole 17 and the first receiving groove 151 and used for receiving the matching locking assembly 3 is provided on an outer circumferential surface of the lock cylinder 15, the front surface locking pin assembly 2 includes a front surface locking pin 21, a longitudinal elastic element 22 and a transverse elastic element 23, a length of the first receiving groove 151 is greater than a length of the front surface locking pin 21, the front locking pin 21 is provided with a first matching portion 211 matched with the key 16 and a second matching portion 212 matched with the matching locking assembly 3, the front locking pin 21 is further provided with a third matching portion 213, a locking table surface 157 arranged at the bottom of the first accommodating groove 151 is provided, an unlocking groove 156 for embedding the third matching portion 213 is arranged beside the locking table surface 157, the locking table surface 157 is higher than or equal to the top surface of the unlocking groove 156, the longitudinal elastic element 22 is arranged between the front end of the front locking pin 21 and one side wall of the first accommodating groove 151, the transverse elastic element 23 is arranged between the lock core 15 and the front locking pin 21, the third matching portion 213 is aligned with the unlocking groove 156 in the unlocking state, and the transverse elastic element 23 acts on the third matching portion 213 to be separated from the unlocking groove 156 so that the top of the front locking pin 21 is clamped on the lock shell in the locking state, the longitudinal elastic element 22 acts on the third matching portion 213 to move back from the position of the unlocking slot 156 to the position of the locking table 157, the hole where the first receiving slot 151 communicates with the keyhole 17 is the first through hole 154, the hole where the first receiving slot 151 communicates with the second receiving slot 152 is the second through hole 155, the first matching portion 211 passes through the first through hole 154 to match with the key 16, the matching locking assembly 3 passes through the second through hole 155 to match with the second matching portion 212, when the key is inserted, the tooth pattern of the key matches with the matching locking assembly, during the process of inserting the key, the middle portion of the front end of the key abuts against the first matching portion of the front locking pin and drives the position of the third matching portion of the front locking pin to align with the unlocking slot, and then the lock bladder can be rotated to unlock, compared with the prior art, except that the tooth pattern of the key matches with the matching locking assembly, meanwhile, a certain length of the key is required to just push the third matching part of the front locking pin to align with the unlocking groove to realize unlocking, otherwise, even if the tooth of the key is matched with the matching locking component, unlocking cannot be realized, and the safety performance of the lock cylinder is further improved, so that technical unlocking of lawless persons is prevented.

In the invention, in order to enable the key to reset after pushing the front locking pin to longitudinally displace, the front locking pin has two design modes:

the front locking pin is designed in a first way: the longitudinal elastic element 22 includes a protruding column 221 fixedly connected to the front side locking pin 21 and extending in the longitudinal direction, the protruding column 221 is sleeved with a first return spring 222, one end of the first return spring 222 acts on the side wall of the first receiving groove 151, and the other end of the first return spring 222 acts on the side surface of the front side locking pin 21 connected to the protruding column 221.

Design mode two of the front side locking pin: the longitudinal elastic member includes an opening 223 formed at a front end surface of the front locking pin 21, a first return spring 222 is disposed in the opening 223, one end of the first return spring 222 acts on a side wall of the first receiving groove 151, and the other end acts on a bottom surface of the opening 223.

In the invention, in order to enable the front surface locking pin to be reset after moving in the depth direction of the first accommodating groove, the transverse elastic element 23 includes a marble 231 and a second return spring 232, the second matching portion 212 is provided with a first accommodating hole 233 for accommodating the marble 231, one end of the marble 231 is provided with a second accommodating hole 234 for accommodating a part of the second return spring 232, the aperture of the first accommodating hole 233 is larger than that of the second accommodating hole 234, the second return spring 232 is arranged between the bottom of the first accommodating hole 233 and the bottom of the second accommodating hole 234, and the other end of the marble 231 is abutted to the bottom of the first accommodating groove 151 under the action of the second return spring 232.

The cooperative locking assembly can be a leaf assembly or a pin assembly, in the invention, the cooperative locking assembly 3 is preferably a leaf assembly, and the cooperative locking assembly 3 is a leaf assembly.

In the invention, the front side locking pin and the matching locking component are conveniently matched better, the matching locking component 3 comprises a plurality of leaf sets 31, each leaf set 31 comprises a plurality of leaves, each leaf set is provided with a convex block 32 which partially penetrates through the second through hole 155 and then extends into the first accommodating groove 151, both sides of the convex block 32 are provided with notches 33, when the key 16 is inserted, teeth of the key 16 drive the leaves to move transversely so that the convex blocks 32 are longitudinally aligned to form convex strips 34 and the notches 33 on both sides are longitudinally aligned to form two yielding notch grooves 35 respectively, the convex strips and the two yielding notch grooves form a strip-shaped ' convex ' shape, the second matching part is in a concave ' shape, when the key 16 drives the lock liner 15 to rotate, the second matching part 212 is matched with the convex strips 34 or/and the second matching part 212 is matched with the yielding notch grooves 35, namely, the matching is in a concave-convex form, the matching locking assembly 3 further comprises a third return spring 36, and after the key 16 is pulled out, the third return spring 36 acts on the leaves in each group of leaf groups 31 to be staggered.

In the invention, the number of the leaf sets 31 is equal to the number of the second receiving grooves 152, each of the leaf sets 31 includes three mutually overlapped leaves, one end of the third return spring 36 acts on one outer leaf, and the other end acts on the other outer leaf, so that the leaves of the key leaf set can be conveniently pulled out for resetting, and the middle leaf can be driven to reset by pulling out the teeth of the key.

In the invention, a pulling lug 13 is arranged in an open slot 12 in the middle of the lock shell 11, the front locking pin 21 is further provided with a linkage part 214 and a fourth matching part 215 which are linked with the pulling lug 13, the hole of the lock core 15 is provided with a bevel groove 143 for the part of the fourth matching part 215 to be clamped when the lock core 15 is in the locking state, when the key 16 is inserted and the lock core 15 is driven to rotate, the fourth engaging portion 215 is disengaged from the chamfered groove 143 and completely retracted into the first receiving groove 151, so that the second engaging portion 212 engages with the protruding strip 34 or/and the second engaging portion 212 engages with the relief notch 35, when the key 16 drives the cylinder core 15 to rotate until the first receiving groove 151 is aligned with the bevel groove 143, the portion of the second return spring 232 acting on the fourth mating portion 215 is pushed into the chamfered groove 143.

In the invention, the safety performance of the lock core structure is further improved, a side locking pin assembly is further arranged on the lock cylinder for locking or unlocking, and the design is as follows: a third accommodating groove 153 communicated with the keyhole is formed in the side face of the lock cylinder 15, a side locking pin assembly 4 is arranged in the third accommodating groove 153, the side locking pin assembly 4 comprises a side locking pin 41 and a fourth return spring 42 acting on the side locking pin 41 to return, and a clamping mechanism used for locking or unlocking the lock cylinder 15 relative to the lock shell 11 is arranged between the side locking pin 41 and the lock shell 11.

The clamping mechanism comprises a clamping protrusion 411 arranged on the outer side of the side locking pin 41 and a first extending block 412 arranged on the inner side of the side locking pin 41 and extending into the key hole 17, a sliding groove 141 extending along the axis direction of the lock container hole 14 and matched with the clamping protrusion 411 is arranged on the inner wall of the lock container hole 14, an arc-shaped groove 142 extending around the axis of the lock container hole 14 and matched with the clamping protrusion 411 is arranged on the inner wall of the lock container hole 14, the sliding groove 141 and the arc-shaped groove 142 are staggered, when in a locking state, a part of the clamping protrusion 411 is clamped in the sliding groove 141, when the key 16 is inserted, the side part of the front end of the key 16 abuts against the first extending block 412 and drives the clamping protrusion 411 to move from the sliding groove 141 to the intersection of the sliding groove 141 and the arc-shaped groove 142, so that the lock container 15 rotates and is unlocked relative to the lock shell 11, when the lock core 15 is located at the locking position and the key 16 is pulled out, the fourth return spring 42 acts on the clamping protrusion 411 to slide into the sliding groove 141 from the intersection of the sliding groove 141 and the arc-shaped groove 142, so that the lock core 15 is locked relative to the lock shell 11.

The working principle is as follows: when the key is inserted into the key hole, the teeth on the key can drive each blade of the blade group to move transversely so that the convex blocks on each blade are aligned with each other and the gaps on each blade are aligned with each other, at the same time, the middle part of the front end of the key is abutted against and pushes the first matching part of the front locking pin to move longitudinally so that the position of the third matching part of the front locking pin is aligned with the position of the unlocking groove, and at the same time, the side part of the front end of the key is abutted against and pushes the first extending block to move so as to drive the clamping convex on the side locking pin to move from the sliding groove to the intersection of the sliding groove and the arc-shaped groove, so that the key can be operated to drive the lock liner to rotate, and in the rotating process of the lock liner, the linkage part of the front locking pin is always linked with the poking tool, so that the fourth matching part of the front locking pin is separated from the bevel groove, at this time, the fourth matching part of the front locking pin is completely received in the first accommodating groove, so that the second matching part of the front locking pin is matched with the protruding strip or/and the yielding notch groove, and meanwhile, the clamping protrusion slides into the arc-shaped groove from the intersection of the sliding groove and the arc-shaped groove, and unlocking can be achieved.

Work as the key drive the lock courage rotates when locking position, extracts behind the key, reset spring effect side stop pin resets and makes the card protruding from the crossing department of spout and arc type recess slide back the spout in, with this simultaneously, second reset spring effect the second cooperation portion of positive stop pin breaks away from protruding strip or/and the breach slot cooperation of stepping down makes third cooperation portion pop out in the unlocking groove back, the fourth cooperation portion card of positive stop pin is gone into in the bevel groove, with this simultaneously, first reset spring acts on the vertical direction of third cooperation of positive locking pin resets to the locking mesa to this simultaneously, and the page or leaf of every page or leaf group of third reset spring effect resets and staggers, can realize the locking.

Claims (11)

1. A lock core structure comprises a lock shell (11), wherein a lock liner hole (14) is formed in the lock shell (11), a lock liner (15) is arranged in the lock liner hole (14) in a rotating mode, a key hole (17) for inserting a key (16) is formed in the lock liner (15), the lock core structure is characterized by further comprising a front locking pin assembly (2) and a matching locking assembly (3) matched with the key (16) in a tooth pattern mode, a first accommodating groove (151) used for accommodating the front locking pin assembly (2) and communicated with the key hole (17) is formed in the outer peripheral surface of the lock liner (15), a second accommodating groove (152) communicated with the key hole (17) and the first accommodating groove (151) and used for accommodating the matching locking assembly (3) is formed in the outer peripheral surface of the lock liner (15), and the front locking pin assembly (2) comprises a front locking pin (21), A longitudinal elastic element (22) and a transverse elastic element (23), the length of the first accommodating groove (151) is greater than that of the front locking pin (21), a first matching portion (211) matched with the key (16) and a second matching portion (212) matched with the locking component (3) are arranged on the front locking pin (21), a third matching portion (213) is further arranged on the front locking pin (21), a locking table surface (157) is arranged at the bottom of the first accommodating groove (151), an unlocking groove (156) embedded with the third matching portion (213) is arranged beside the locking table surface (157), the locking table surface (157) is higher than or equal to the top surface of the unlocking groove (156), the longitudinal elastic element (22) is arranged between the front end of the front locking pin (21) and one side wall of the first accommodating groove (151), the transverse elastic element (23) is positioned between the lock cylinder (15) and the front locking pin (21), the third matching part (213) is aligned with the unlocking groove (156) in the unlocking state, the transverse elastic element (23) acts the third matching part (213) to be separated from the unlocking groove (156) in the locking state, so that the top of the front locking pin (21) is clamped on the lock shell, and the longitudinal elastic element (22) acts the third matching part (213) to be retracted from the position of the unlocking groove (156) to the locking table surface (157).

2. The lock cylinder structure according to claim 1, wherein the hole through which the first receiving groove (151) communicates with the key hole (17) is a first through hole (154), the hole through which the first receiving groove (151) communicates with the second receiving groove (152) is a second through hole (155), the first engaging portion (211) passes through the first through hole (154) to engage with the key (16), and the engagement locking assembly (3) passes through the second through hole (155) to engage with the second engaging portion (212).

3. A lock cylinder structure according to claim 2, characterized in that said longitudinal elastic member (22) comprises a projecting post (221) fixedly connected to said front side locking pin (21) and extending in the longitudinal direction, said projecting post (221) being fitted with a first return spring (222), said first return spring (222) acting at one end on the side wall of the first receiving groove (151) and at the other end on the side of the front side locking pin (21) connected to the projecting post (221).

4. The lock cylinder structure according to claim 2, wherein the longitudinal elastic member comprises a hole (223) formed at a front end surface of the front locking pin (21), a first return spring (222) is disposed in the hole (223), one end of the first return spring (222) acts on a side wall of the first receiving groove (151), and the other end acts on a bottom surface of the hole (223).

5. The lock cylinder structure according to claim 2, wherein the transverse elastic element (23) comprises a ball (231) and a second return spring (232), the second engaging portion (212) is provided with a first receiving hole (233) for receiving the ball (231), one end of the ball (231) is provided with a second receiving hole (234) for receiving a portion of the second return spring (232), the diameter of the first receiving hole (233) is larger than that of the second receiving hole (234), the second return spring (232) is disposed between the bottom of the first receiving hole (233) and the bottom of the second receiving hole (234), and the other end of the ball (231) abuts against the bottom of the first receiving groove (151) under the action of the second return spring (232).

6. Lock cylinder arrangement according to claim 5, characterized in that the co-operating locking assembly (3) is a leaf assembly.

7. The lock core structure according to claim 6, wherein the locking assembly (3) comprises a plurality of leaf sets (31), each of the leaf sets (31) comprises a plurality of leaves, each of the leaf sets (31) has a protruding block (32) partially passing through the second through hole (155) and extending into the first receiving groove (151), both sides of the protruding block (32) are provided with notches (33), when the key (16) is inserted, the teeth of the key (16) drive the leaves to move transversely, so that the protruding block (32) is longitudinally aligned to form a protruding strip (34) and the notches (33) on both sides are longitudinally aligned to form two yield grooves (35), respectively, when the key (16) drives the lock core (15) to rotate, the second matching portion (212) matches with the protruding strip (34) or/and the second matching portion (212) matches with the yield groove (35), the matching locking assembly (3) further comprises a third return spring (36), and after the key (16) is pulled out, the third return spring (36) acts on the leaves in each group of leaf groups (31) to be staggered with each other.

8. The lock cylinder structure according to claim 7, wherein the number of said groups of leaves (31) is equal to the number of said second receiving grooves (152), each group of said leaves (31) comprises three said leaves overlapped with each other, one end of said third return spring (36) acts on one outer leaf and the other end acts on the other outer leaf.

9. The lock core structure according to claim 7, wherein a pulling lug (13) is disposed in an open slot (12) at the middle of the lock case (11), the front locking pin (21) further comprises a linkage portion (214) and a fourth engagement portion (215) linked with the pulling lug (13), a slot (143) for partially clamping the fourth engagement portion (215) when the lock core (15) is in the locked state is disposed in the lock core (15) hole, when the key (16) is inserted and the lock core (15) is driven to rotate, the fourth engagement portion (215) is disengaged from the engagement of the slot (143) and is completely retracted into the first receiving slot (151) so that the second engagement portion (212) is engaged with the protruding strip (34) or/and the second engagement portion (212) is engaged with the recess notch (35), and when the key (16) drives the lock core receiving slot (15) to rotate to the first slot (151) and the slot (215) are engaged with the recess notch (35), and when the key (16) drives the lock core receiving slot (15) to rotate 143) When in alignment, the part of the second return spring (232) acting on the fourth matching part (215) is pushed into the bevel groove (143).

10. The lock core structure according to claim 1, wherein a third receiving groove (153) communicated with the key hole is formed on a side surface of the cylinder (15), a side locking pin assembly (4) is disposed in the third receiving groove (153), the side locking pin assembly (4) includes a side locking pin (41) and a fourth return spring (42) for returning the side locking pin (41), and a locking mechanism for locking or unlocking the cylinder (15) with respect to the lock housing (11) is disposed between the side locking pin (41) and the lock housing (11).

11. The lock cylinder structure according to claim 10, wherein the locking mechanism includes a locking protrusion (411) disposed outside the side locking pin (41) and a first protrusion (412) disposed inside the side locking pin (41) and extending into the key hole (17), the inner wall of the lock container hole (14) is provided with a sliding slot (141) extending along the axial direction of the lock container hole (14) and adapted to the locking protrusion (411), the inner wall of the lock container hole (14) is provided with an arc-shaped groove (142) extending around the axial direction of the lock container hole (14) and adapted to the locking protrusion (411), the sliding slot (141) is staggered with the arc-shaped groove (142), when in the locked state, a portion of the locking protrusion (411) is locked into the sliding slot (141), and when the key (16) is inserted, the side portion of the front end of the key (16) abuts against the first protrusion (412) and drives the locking protrusion (411) to move from the sliding slot (17) (141) The lock core (15) is rotated and unlocked relative to the lock shell (11) by moving to the intersection of the sliding groove (141) and the arc-shaped groove (142), and after a key (16) is pulled out when the lock core (15) is located at a locking position, the fourth return spring (42) acts on the clamping protrusion (411) to slide into the sliding groove (141) from the intersection of the sliding groove (141) and the arc-shaped groove (142) so that the lock core (15) is locked relative to the lock shell (11).

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