CN211422138U - Lock core and unlocking key - Google Patents

Abstract

The utility model provides a lock core and unblock key. Wherein, lock core includes: a lock case; the lock cylinder is movably arranged in the lock shell; the lock bolt is movably arranged between the lock cylinder and the lock shell and can be switched between a locking position extending into the lock shell and an unlocking position retreating from the lock shell; the locking blade is movably arranged in the lock cylinder and can move between positions for stopping or avoiding the lock bolt, and the locking blade has movement along a first direction and movement along a second direction. The utility model provides a problem that the theftproof performance of mechanical lock core among the prior art is low.

Description

Lock core and unlocking key

Technical Field

The utility model relates to a tool to lock particularly, relates to a lock core and unblock key.

Background

In recent years, along with the updating of the unlocking means of the lock technology and the improvement of tools, the anti-theft capacity of the traditional pure mechanical anti-theft lock cylinder is reduced, and the mechanical lock cylinder is often used as an emergency unlocking channel reserved for the door lock, so that the mechanical anti-technical unlocking capacity of the lock cylinder is required to be improved.

Disclosure of Invention

A primary object of the present invention is to provide a lock cylinder and an unlocking key to solve the problem of low anti-theft performance of mechanical lock cylinders in the prior art.

In order to achieve the above object, according to an aspect of the present invention, there is provided a lock cylinder, including: a lock case; the lock cylinder is movably arranged in the lock shell; the lock bolt is movably arranged between the lock cylinder and the lock shell and can be switched between a locking position extending into the lock shell and an unlocking position retreating from the lock shell; the locking blade is movably arranged in the lock cylinder and can move between positions for stopping or avoiding the lock bolt, and the locking blade has movement along a first direction and movement along a second direction; when the lock cylinder is locked, one end of the lock bolt extends into the lock shell from the lock cylinder to block the rotation of the lock cylinder, the locking blade is located at the position for stopping the lock bolt, the other end of the lock bolt abuts against the locking blade, and the locking blade locks the lock bolt at a locking position; when the unlocking key unlocks the lock cylinder, the locking blade moves along the first direction under the driving of the first unlocking position of the unlocking key, the locking blade moves to the position of once avoiding the lock bolt, one part of the lock bolt can extend into the locking blade, one end part, far away from the locking blade, of the lock bolt exits from the lock shell, one part of the lock bolt is still located in the lock shell, the locking blade moves along the second direction under the driving of the second unlocking position of the unlocking key, the locking blade moves towards the direction far away from the lock bolt and moves to the position of twice avoiding the lock bolt, the lock bolt can completely exit from the lock shell, and the lock cylinder is unlocked.

Further, the first direction is perpendicular to the moving direction of the latch, and the second direction is parallel to the moving direction of the latch.

Furthermore, the locking blade is provided with an unlocking hole for inserting an unlocking key, the inner wall of the unlocking hole is provided with a driving part which is convexly arranged, and the unlocking key extrudes the driving part to drive the locking blade to move.

Further, the drive portion is a plurality of, and includes: the first driving part is extruded by a first unlocking position of the unlocking key so as to drive the locking blade to move along a first direction; and the second driving part is extruded by a second unlocking position of the unlocking key so as to drive the locking blade to move along the second direction.

Furthermore, the first driving part and the second driving part are respectively positioned on the inner walls of two opposite sides of the unlocking hole or on the inner wall of the same side of the unlocking hole.

Further, the lock core still includes the piece that resets, and the both ends that resets respectively with lock courage and shutting blade butt to can drive the direction motion that the shutting blade is followed and is left from first direction and/or second direction, with the drive shutting blade resets when the lock core is extracted to the unblock key.

Further, the lock core still includes lock courage cover, lock courage cover is established in the lock courage outside, and be located between lock courage and the lock shell, all can rotate relatively between lock courage cover and the lock courage three, the lock plunger includes first section and the second section of butt in order, first section is compared and is kept away from the shutting blade in the second section, when the lock core is not unblock, first section stretches into to the lock shell in, the interface of first section and second section coincides with the interface of lock courage and lock courage cover, the lock courage can rotate for lock courage cover, lock courage cover can't rotate for the lock shell relatively, the lock core is locked, when unblock key unblock lock core, the shutting blade moves to the position of dodging the lock plunger completely along first direction and second direction under the drive of unblock key, the one end that the first section was kept away from to the shutting blade in the second section stretches into, first section withdraws from the lock shell completely, and stretches into in the lock courage, a part, the other part of the first section is positioned in the lock cylinder, the lock cylinder drives the lock cylinder sleeve to rotate relative to the lock shell, and the lock cylinder is unlocked.

Further, the locking blade is provided with a groove for the lock bolt to extend into, the lock bolt is provided with a protrusion, when the lock core is not unlocked, the groove is staggered with the protrusion, the locking blade stops the movement of the lock bolt, when the lock core is unlocked, the locking blade moves along a first direction under the driving of an unlocking key, the groove is aligned with the protrusion, the protrusion can extend into the groove, and the lock bolt partially exits from the lock shell.

Furthermore, the locking blades are arranged in sequence along the direction that the unlocking key is inserted into the lock cylinder, and when the unlocking key drives the locking blades to move to the position completely avoiding the lock plunger along the first direction and the second direction, the projections of the grooves on the locking blades on the plane where the locking blades are located are overlapped.

Furthermore, the lock shell is provided with a locking groove for the lock bolt to extend into, the side face of the locking groove is perpendicular to the tangent line of the lock shell at the locking groove, and the side face of one end of the lock bolt extending into the lock shell is parallel to the side face of the locking groove.

According to the utility model discloses an on the other hand provides an unlocking key for the foretell lock core of unblock, the unlocking key includes: the first unlocking position can drive the locking blade of the lock cylinder to move along a first direction; and a second unlocking position capable of driving the locking blade to move along a second direction.

Further, the first unlocking position and the second unlocking position are respectively arranged on two opposite surfaces of the unlocking key or on the same surface of the unlocking key.

Further, the unlocking key has an unlocking groove, the side wall of the unlocking groove serves as a first unlocking position, and the bottom wall of the unlocking groove serves as a second unlocking position.

Use the technical scheme of the utility model, through being provided with floating shutting blade, the shutting blade can move on two directions of first direction and second direction, like this, just need drive shutting blade to all move in place on first direction and second direction and just can realize the complete unblock of lock core when the unblock key will unblock lock core. When the lock core is unlocked, one part of the lock bolt extends into the lock shell, the other part of the lock bolt is positioned in the lock cylinder, so that the relative rotation between the lock cylinder and the lock shell is hindered, at the moment, the locking blade is positioned at the position for stopping the lock bolt, and one end of the lock bolt, which does not extend into the lock shell, abuts against the locking blade, so that the lock bolt cannot move freely, and the lock bolt is locked at a locking position; when the unlocking key unlocks the lock cylinder, the unlocking is roughly divided into two processes which are almost simultaneously carried out, one process is that a first unlocking position on the unlocking key drives the locking blade to move along a first direction, the locking blade moves to a position for avoiding the lock bolt for one time, at the moment, one part of the lock bolt can extend into the locking blade, one end part of the lock bolt extending into the lock shell withdraws from the lock shell, but one part of the lock bolt still remains in the lock shell, the lock cylinder still keeps locked, at the same time, the other process is that a second unlocking position of the unlocking key drives the locking blade to move along a second direction, and the locking blade moves towards a direction far away from the lock bolt, so that the lock bolt is avoided for the second time, a space is provided for the movement of the lock bolt, at the moment, the lock bolt can continue to move and completely withdraw from the lock shell, so. The arrangement mode improves the complexity of unlocking the lock cylinder, increases the complexity and the cracking difficulty of the lock cylinder, increases the technical unlocking difficulty and improves the safety of the lock cylinder.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic structural diagram of a lock cylinder according to a first embodiment of the present invention when the lock cylinder is not unlocked;

fig. 2 shows a schematic illustration of the blocking blade of the lock cylinder from fig. 1 during the primary release of the lock bolt;

FIG. 3 is a schematic view of the lock cylinder of FIG. 1 shown fully unlocked;

FIG. 4 shows a schematic structural view of a locking blade of the lock cylinder of FIG. 1;

fig. 5 shows a schematic structural view of the front side of the unlocking key of the present invention;

fig. 6 shows a schematic structural view of the reverse side of the unlocking key of the present invention;

fig. 7 shows a schematic structural diagram of a lock cylinder according to a second embodiment of the present invention when the lock cylinder is not unlocked;

FIG. 8 shows a schematic illustration of the blocking blade of the lock cylinder of FIG. 7 in the event of one escape of the lock bolt;

FIG. 9 is a schematic view of the lock cylinder of FIG. 7 shown fully unlocked;

FIG. 10 shows a schematic view of the locking blade of the lock cylinder of FIG. 7;

fig. 11 is a schematic structural view of a lock cylinder obtained by combining a lock cylinder sleeve of a third embodiment of the present invention with a locking blade of a first embodiment of the present invention, when the lock cylinder is not unlocked;

FIG. 12 shows a schematic illustration of the blocking blade of the lock cylinder of FIG. 11 in the event of one escape of the lock bolt;

FIG. 13 is a schematic view of the lock cylinder of FIG. 11 shown fully unlocked;

fig. 14 is a schematic structural view of a lock cylinder obtained by combining a cylinder liner sleeve of a third embodiment of the present invention with a locking blade of a second embodiment of the present invention, when the lock cylinder is not unlocked;

FIG. 15 shows a schematic illustration of the blocking blade of the lock cylinder of FIG. 14 in a first pass to clear the lock bolt; and

fig. 16 shows a schematic view of the lock cylinder of fig. 14 when fully unlocked.

Wherein the figures include the following reference numerals:

10. a lock case; 20. a lock liner; 30. a lock bolt; 31. a first stage; 32. a second stage; 33. a protrusion; 40. locking the blade; 41. unlocking the hole; 42. a drive section; 421. a first driving section; 422. a second driving section; 43. a groove; 50. a reset member; 60. a lock liner sleeve; 70. a first unlock bit; 80. a second unlocked position.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present application, where the contrary is not intended, the use of directional words such as "upper, lower, top and bottom" is generally with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, perpendicular or gravitational direction; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the problem that the theftproof performance of the mechanical lock core among the prior art is low, the utility model provides a lock core and unblock key.

Example one

The lock core shown in fig. 1 to 4 comprises a lock shell 10, a lock core 20, a lock bolt 30 and a locking blade 40, wherein the lock core 20 is movably arranged in the lock shell 10; the lock bolt 30 is movably arranged between the lock cylinder 20 and the lock shell 10 and can be switched between a locking position extending into the lock shell 10 and an unlocking position retreating from the lock shell 10; the locking blade 40 is movably arranged in the lock cylinder 20 and can move between positions for stopping or avoiding the lock bolt 30, and the locking blade 40 has movement along a first direction and movement along a second direction; when the lock core is locked, one end of the lock bolt 30 extends into the lock shell 10 from the lock core 20 to block the rotation of the lock core 20, the locking blade 40 is located at the position for stopping the lock bolt 30, the other end of the lock bolt 30 abuts against the locking blade 40, and the locking blade 40 locks the lock bolt 30 at the locking position; when the unlocking key unlocks the lock cylinder, the locking blade 40 moves in a first direction under the driving of the first unlocking position 70 of the unlocking key, the locking blade 40 moves to a position for once avoiding the lock bolt 30, a part of the lock bolt 30 can extend into the locking blade 40, one end part of the lock bolt 30 far away from the locking blade 40 is partially withdrawn out of the lock shell 10, a part of the lock bolt 30 is still positioned in the lock shell 10, the locking blade 40 moves in a second direction under the driving of the second unlocking position 80 of the unlocking key, the locking blade 40 moves in a direction far away from the lock bolt 30 and moves to a position for twice avoiding the lock bolt 30, and the lock bolt 30 can be completely withdrawn out of the lock shell 10 to unlock the lock cylinder.

This embodiment is through being provided with floating shutting blade 40, and shutting blade 40 can move on two directions of first direction and second direction, like this, just need drive shutting blade 40 all to move in place in first direction and second direction when the lock core will be unlocked to the unblock key and just can realize the complete unblock of lock core. When the lock cylinder is unlocked, one part of the lock bolt 30 extends into the lock shell 10, the other part is positioned in the lock cylinder 20, so that the relative rotation between the lock cylinder 20 and the lock shell 10 is hindered, at the moment, the locking blade 40 is positioned at the position of stopping the lock bolt 30, one end of the lock bolt 30, which does not extend into the lock shell 10, abuts against the locking blade 40, so that the lock bolt 30 cannot move freely, and the lock bolt 30 is locked at the locking position, as shown in fig. 1; when the unlocking key unlocks the lock cylinder, the unlocking is roughly divided into two processes which are almost simultaneously carried out, wherein one process is shown in fig. 2, a first unlocking position 70 on the unlocking key drives the locking blade 40 to move along a first direction, the locking blade 40 moves to a position for avoiding the lock cylinder 30 once, at the moment, a part of the lock cylinder 30 can extend into the locking blade 40, one end part of the lock cylinder 30 extending into the lock shell 10 is withdrawn from the lock shell 10, but a part of the lock cylinder is still in the lock shell 10, the lock cylinder still keeps locked, at the same time, the other process is shown in fig. 3, a second unlocking position 80 of the unlocking key drives the locking blade 40 to move along a second direction, the locking blade 40 moves away from the lock cylinder 30, so that the lock cylinder 30 is avoided secondarily, a space is provided for the movement of the lock cylinder 30, at the moment, the lock cylinder 30 can continue to move and is completely withdrawn from the lock shell 10, so that the lock, and complete unlocking of the lock cylinder is realized. The arrangement mode improves the complexity of unlocking the lock cylinder, increases the complexity and the cracking difficulty of the lock cylinder, increases the technical unlocking difficulty and improves the safety of the lock cylinder.

It should be noted that, during the unlocking process, the movement of the locking blade 40 in the first direction and the second direction is almost performed simultaneously, and there is no obvious sequential relationship between the primary avoidance and the secondary avoidance. However, the locking blade 40 must be retracted once and retracted twice, i.e., the locking blade 40 is fully retracted from the lock bolt 30, so that the lock cylinder can be fully unlocked.

In the present embodiment, the first direction is perpendicular to the moving direction of the latch 30, and the second direction is parallel to the moving direction of the latch 30 and is a direction away from the latch 30, so that the first direction is perpendicular to the second direction.

As shown in fig. 4, the locking blade 40 has an unlocking hole 41 into which the unlocking key is inserted, the inner wall of the unlocking hole 41 has a driving portion 42 provided in a protruding manner, and the unlocking key presses the driving portion 42 to drive the locking blade 40 to move.

Specifically, the driving portion 42 is plural and includes a first driving portion 421 and a second driving portion 422, wherein the first unlocking portion 70 of the unlocking key presses a sidewall of the first driving portion 421 to drive the locking blade 40 to move in the first direction; the second unlocking bit 80 of the unlocking key presses the end of the second driving part 422 to drive the locking blade 40 to move in the second direction. It is preferable that the first driver 421 and the second driver 422 are respectively disposed on the inner walls of the two opposite sides of the unlocking hole 41, and the first driver 421 is located on the inner wall of the unlocking hole 41 close to the latch 30, and the second driver 422 is located on the inner wall of the unlocking hole 41 far from the latch 30.

As shown in fig. 1 to 3, the lock cylinder further includes a reset piece 50, two ends of the reset piece 50 are respectively abutted to the lock cylinder 20 and the locking blade 40, and the reset piece can drive the locking blade 40 to move along a direction departing from the first direction and/or the second direction, so that the locking blade 40 is driven to reset when the unlocking key is used for pulling out the lock cylinder, and the automatic reset of the locking blade 40 is realized.

Specifically, the reset piece 50 is preferably a spring, the reset piece 50 may be only one type, the reset piece 50 and the latch 30 are respectively located at two sides of the locking blade 40, an axis of the reset piece 50 is parallel to the second direction, the reset piece 50 can drive the locking blade 40 to move in a direction away from the second direction, and can drive the locking blade 40 to move in a direction away from the first direction, that is, the reset piece 50 realizes the overall reset of the locking blade 40 in two directions, in this case, a fixed connection mode is adopted between the reset piece 50 and the locking blade 40 and between the reset piece 50 and the lock cylinder 20, when the unlocking key drives the locking blade 40 to move in the first direction, the locking blade 40 drives one end of the reset piece 50 to move, so that the reset piece 50 bends, after the unlocking key is pulled out, the reset piece 50 drives the locking blade 40 to move in a direction away from the first direction under the action of self-restoring linear elastic force, so that the reset of the locking blade 40 in the first direction is realized When the unlocking key drives the locking blade 40 to move along the second direction, the locking blade 40 presses the resetting piece 50, so that the resetting piece 50 is compressed, and after the unlocking key is pulled out, the resetting piece 50 drives the locking blade 40 to move along the direction departing from the second direction under the action of the elastic force of the resetting piece 50 which extends outwards to realize the resetting of the locking blade 40 in the second direction.

In addition to the above arrangement, the reset element 50 may be provided with two types, which are divided into a first reset element and a second reset element, wherein an axis of the first reset element is parallel to the first direction, the first reset element is used for achieving automatic reset of the locking blade 40 in the first direction, when the unlocking key drives the locking blade 40 to move along the first direction, the locking blade 40 presses the first reset element, the first reset element is compressed, and when the unlocking key extracts the lock cylinder, the locking blade 40 moves along a direction deviating from the first direction under the driving of the first reset element, thereby achieving automatic reset of the locking blade 40 in the first direction. The axis of the second resetting piece is parallel to the second direction, the second resetting piece is used for achieving automatic resetting of the locking blade 40 in the second direction, when the unlocking key drives the locking blade 40 to move in the second direction, the locking blade 40 presses the second resetting piece, the second resetting piece is compressed, when the unlocking key extracts the lock cylinder, the locking blade 40 moves in the direction deviating from the second direction under the driving of the second resetting piece, and therefore automatic resetting of the locking blade 40 in the second direction is achieved.

In the present embodiment, the outer side wall of the locking blade 40 near the lock bolt 30 has a groove 43 for the lock bolt 30 to extend into, the lock bolt 30 has a protrusion 33, when the lock cylinder is not unlocked, the groove 43 is misaligned with the protrusion 33, the locking blade 40 stops the movement of the lock bolt 30 to lock the lock bolt 30, when the lock cylinder is unlocked, the locking blade 40 moves in a first direction under the driving of an unlocking key to a position of once avoiding the lock bolt 30, at this time, the groove 43 is aligned with the protrusion 33, the protrusion 33 can extend into the groove 43, and the lock bolt 30 is partially withdrawn from the lock case 10. It should be noted that the depth of the groove 43 should not be too large, and the depth should be such that the lock bolt 30 partially exits the lock case 10, and the lock bolt 30 still has a part in the lock case 10, so as to avoid that the lock bolt 30 completely exits the lock case 10 due to too large depth, and the specific value is determined according to actual conditions.

In this embodiment, the number of the locking blades 40 is multiple, the locking blades 40 are sequentially arranged along the direction of inserting the unlocking key into the lock cylinder, the lock bolt 30 is integrally linear so as to be convenient for processing, when the unlocking key drives the locking blades 40 to move along the first direction and the second direction to the position of completely avoiding the lock bolt 30, the projections of the grooves 43 on the locking blades 40 on the plane where the locking blades 40 are located are overlapped, and the grooves 43 of the locking blades 40 form a straight line, so that the lock bolt 30 can simultaneously extend into all the grooves 43. Thus, the lock bolt 30 can be completely withdrawn from the lock case 10 only when all the locking blades 40 are moved to the position completely avoiding the lock bolt 30, and the lock bolt 30 cannot be moved any further as long as one of the recesses 43 is not aligned with the protrusion 33, thereby improving the security of the lock cylinder. Of course, the locking bolt 30 may not be provided in a straight line, for example, in a multi-segment bent shape, and accordingly, the shape of the groove 43 formed when the lock cylinder is unlocked should also correspond to the shape of the locking bolt 30 to ensure that the locking bolt 30 can be inserted into all the grooves 43.

Preferably, the protrusion 33 and the groove 43 are both V-shaped, so that when the unlocking key is used to pull out the lock cylinder, and the locking blade 40 is driven by the first resetting member to move, the inclined surface of the groove 43 presses the protrusion 33, so that the protrusion 33 exits the groove 43, and the lock bolt 30 protrudes into the lock case 10 again, thereby achieving the automatic locking of the lock cylinder.

In this embodiment, the lock case 10 is provided with a locking groove into which the latch 30 is inserted, the side of the locking groove is perpendicular to the tangent line of the lock case 10 at the locking groove, and the side of the latch 30 inserted into one end of the lock case 10 is parallel to the side of the locking groove. The arrangement mode enables the lock shell 10 to only have tangential extrusion force on the lock bolt 30 and not to generate radial extrusion force even if the lock core 20 is twisted by external force, the situation that the lock core 30 is extruded by the lock shell 10 under the condition that the lock core 20 is twisted by external force to enable the lock bolt 30 to exit the lock shell 10 is avoided, the lock bolt 30 is ensured not to exit the lock shell 10 when the lock core is not unlocked, the reliability of lock core locking is ensured, and violent unlocking is avoided. The above arrangement mainly aims at the side wall of the locking groove and the side wall of one end of the lock bolt 30 extending into the lock case 10, and the bottom wall of the locking groove in the depth direction and the end surface of one end of the lock bolt 30 extending into the lock case 10 can be arranged into a plane or a cambered surface according to requirements. Preferably, the end of the locking bolt 30 protruding into the lock case 10 is square, and the locking groove is a square groove for easy processing.

Alternatively, the driving force for the bolt 30 to exit the housing 10 may be achieved by gravity, in which case no additional components need be provided, only to ensure that the bolt 30 is above the locking blade 40. Of course, a spring may be provided to drive the throw 30 out of the housing 10.

The present embodiment also provides an unlocking key, as shown in fig. 5 and 6, for unlocking the lock cylinder described above, the unlocking key comprising a first unlocking bit 70 and a second unlocking bit 80, the first unlocking bit 70 being capable of driving the locking blade 40 of the lock cylinder to move in a first direction; the second unlocking bit 80 is capable of driving the locking blade 40 in a second direction. The unlocking key of the present embodiment has an unlocking groove, the side wall of which serves as the first unlocking position 70, and the bottom wall of which serves as the second unlocking position 80. Because the locking blade 40 is provided in plurality, the first unlocking position 70 has a different distance from the unlocking key axis and similarly the second unlocking position 80 has a different depth.

Since the first driving portion 421 and the second driving portion 422 of the lock cylinder are respectively disposed at the inner walls of two opposite sides of the unlocking hole 41, two unlocking slots are provided, wherein the side wall of one unlocking slot serves as the first unlocking position 70, the bottom wall of the other unlocking slot in the depth direction serves as the second unlocking position 80, the two unlocking slots are respectively disposed on two opposite surfaces of the unlocking key, that is, the first unlocking position 70 and the second unlocking position 80 are respectively disposed on the front surface and the back surface of the unlocking key. Thus, when the unlocking key unlocks the lock cylinder, the first unlocking position 70 presses the first driving portion 421, so that the locking blade 40 moves in the first direction, and simultaneously, the second unlocking position 80 presses the second driving portion 422, so that the locking blade 40 moves in the second direction, so that the lock cylinder is unlocked.

Example two

The difference from the first embodiment is that the first driving part 421 and the second driving part 422 are disposed at different positions.

The first driver 421 and the second driver 422 are disposed on the same side of the inner wall of the unlocking hole 41, and it should be noted that, since the second direction is not changed in general, the position of the second driver 422 needs to be kept unchanged, that is, the second driver 422 is disposed on the inner wall of the unlocking hole 41 far away from the latch 30. In this case, the first driver 421 may be disposed on the inner wall of the unlocking hole 41 away from the latch 30 such that the first driver 421 and the second driver 422 are disposed on the same side, or even may be combined into one, as shown in fig. 7 to 10. Accordingly, two unlocking grooves on the unlocking key are also provided on the same surface, and it is even possible to combine two unlocking grooves into one unlocking groove, the side wall of which drives the first driving portion 421 as the first unlocking position 70, and the bottom wall of which serves as the second unlocking position 80.

EXAMPLE III

The difference from the first embodiment is that a liner lock sleeve 60 is added in the present embodiment.

As shown in fig. 11 to 16, the lock cylinder sleeve 60 is sleeved outside the lock cylinder 20 and located between the lock cylinder 20 and the lock case 10, the lock cylinder sleeve 60 and the lock cylinder 20 can rotate relatively, the lock bolt 30 includes a first section 31 and a second section 32 which are abutted in sequence, the first section 31 is far away from the locking blade 40 compared with the second section 32, a part of the first section 31 can extend into the lock case 10, and the length of the first section 31 is slightly larger than the thickness of the lock cylinder sleeve 60.

When the lock core is not unlocked, the first section 31 extends into the lock shell 10, the interface of the first section 31 and the second section 32 is superposed with the interface of the lock core 20 and the lock core sleeve 60, the lock core 20 can rotate relative to the lock core sleeve 60, the lock core sleeve 60 cannot rotate relative to the lock shell 10, the lock core is locked, and the lock core cannot be unlocked even if the lock core 20 is rotated, so that the lock core 20 idles, as shown in fig. 11;

when the unlocking key unlocks the lock cylinder, the locking blade 40 is driven by the unlocking key to move back to the position for avoiding the lock bolt 30 once along the first direction, the first section 31 partially exits the lock shell 10 and extends into the lock liner 20, one end, far away from the first section 31, of the second section 32 extends into the locking blade 40, the interface between the first section 31 and the second section 32 is positioned in the lock liner 20, at the moment, the lock cylinder is locked, and the lock liner 20, the lock liner sleeve 60 and the lock shell 10 cannot rotate relatively, as shown in fig. 12; meanwhile, the locking blade 40 is driven by the unlocking key to move in the second direction to a position where the lock bolt 30 is avoided for the second time, the first section 31 is completely withdrawn from the lock case 10 and continuously extends into the lock cylinder 20, a part of the first section 31 is located in the lock cylinder sleeve 60, the other part of the first section 31 is located in the lock cylinder 20, an interface between the first section 31 and the second section 32 is located in the lock cylinder 20, the lock cylinder 20 can drive the lock cylinder sleeve 60 to rotate relative to the lock case 10 by rotating the unlocking key, and the lock cylinder is unlocked as shown in fig. 13.

The lock core 20 can idle under the condition that the lock core is not unlocked by additionally arranging the lock core sleeve 60, so that the complexity of unlocking the lock core is further improved, the difficulty of preventing technical opening is improved, and the safety of the lock core is ensured. It should be noted that, in the present embodiment, the lock core locking and unlocking component is the cylinder liner sleeve 60, the cylinder liner sleeve 60 is connected to the subsequent transmission mechanism, and the lock core is unlocked only when the cylinder liner sleeve 60 rotates relative to the lock case 10.

The above-mentioned technical solution with the lock liner sleeve 60 can be applied to the first embodiment, as shown in fig. 11 to 13; the method can also be applied to the second embodiment, as shown in fig. 14 to 16.

It should be noted that, a plurality in the above embodiments means at least two.

From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:

1. the problem of low anti-theft performance of the mechanical lock cylinder in the prior art is solved;

2. the floating type locking blade improves the unlocking complexity of the lock cylinder, increases the complexity and the cracking difficulty of the lock cylinder, increases the technical unlocking difficulty and improves the safety of the lock cylinder;

3. the lock liner sleeve enables the lock liner to idle under the condition that the lock cylinder is not unlocked, so that the complexity of unlocking the lock cylinder is further improved, the difficulty of preventing technical unlocking is improved, and the safety of the lock cylinder is guaranteed.

It is obvious that the above described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. A lock cylinder, comprising:

a lock case (10);

the lock core (20), the lock core (20) is movably arranged in the lock shell (10);

the lock bolt (30) is movably arranged between the lock cylinder (20) and the lock shell (10) and can be switched between a locking position extending into the lock shell (10) and an unlocking position exiting from the lock shell (10);

a blocking blade (40), the blocking blade (40) is movably arranged in the lock cylinder (20) and can move between positions for stopping or avoiding the lock bolt (30), and the blocking blade (40) has a movement along a first direction and a movement along a second direction;

when the lock cylinder is locked, one end of the lock bolt (30) extends into the lock shell (10) from the lock cylinder (20) to block the rotation of the lock cylinder (20), the locking blade (40) is located at a position for stopping the lock bolt (30), the other end of the lock bolt (30) abuts against the locking blade (40), and the locking blade (40) locks the lock bolt (30) at the locking position;

when the lock core is unlocked by an unlocking key, the locking blade (40) moves along the first direction under the driving of a first unlocking position of the unlocking key, the locking blade (40) moves to a position for avoiding the lock bolt (30) for the first time, a part of the lock bolt (30) can extend into the locking blade (40), one end part of the lock bolt (30) far away from the locking blade (40) is partially withdrawn out of the lock shell (10), a part of the lock bolt (30) is still positioned in the lock shell (10), the locking blade (40) moves along the second direction under the driving of a second unlocking position of the unlocking key, the locking blade (40) moves towards a direction far away from the lock bolt (30) and moves to a position for avoiding the lock bolt (30) for the second time, and the lock bolt (30) can be completely withdrawn out of the lock shell (10), the lock cylinder is unlocked.

2. Lock cylinder according to claim 1, characterized in that the first direction is perpendicular to the direction of movement of the bolt (30) and the second direction is parallel to the direction of movement of the bolt (30).

3. The lock cylinder according to claim 1, characterized in that the locking blade (40) has an unlocking hole (41) into which the unlocking key is inserted, the inner wall of the unlocking hole (41) has a convexly arranged drive portion (42), and the unlocking key presses the drive portion (42) to drive the locking blade (40) to move.

4. The lock cylinder according to claim 3, characterized in that the driving portion (42) is plural and comprises:

a first driving portion (421), wherein a first unlocking position of the unlocking key presses the first driving portion (421) to drive the locking blade (40) to move along the first direction;

a second drive portion (422), a second unlocking position of the unlocking key pressing the second drive portion (422) to drive the locking blade (40) to move in the second direction.

5. The lock cylinder according to claim 4, characterized in that the first driver (421) and the second driver (422) are respectively located at inner walls of opposite sides of the unlocking hole (41) or at inner walls of the same side of the unlocking hole (41).

6. The lock cylinder according to claim 1, characterized in that the lock cylinder further comprises a reset piece (50), two ends of the reset piece (50) are respectively abutted against the lock cylinder (20) and the locking blade (40), and the reset piece can drive the locking blade (40) to move in a direction departing from the first direction and/or the second direction, so as to drive the locking blade (40) to reset when the unlocking key is used for pulling out the lock cylinder.

7. The lock core according to claim 1, characterized in that, the lock core further comprises a lock liner sleeve (60), the lock liner sleeve (60) is sleeved outside the lock liner (20) and is located between the lock liner (20) and the lock case (10), the lock liner sleeve (60) and the lock liner (20) can rotate relatively, the lock bolt (30) comprises a first section (31) and a second section (32) which are abutted in sequence, the first section (31) is far away from the locking blade (40) than the second section (32), when the lock core is not unlocked, the first section (31) extends into the lock case (10), the interface between the first section (31) and the second section (32) is coincident with the interface between the lock liner (20) and the lock liner sleeve (60), and the lock liner (20) can rotate relative to the lock liner sleeve (60), lock courage cover (60) for lock shell (10) is unable to rotate, the lock core is locked, works as the unlocking key unblock when the lock core, shutting blade (40) are in the drive of unlocking key is followed first direction with the second direction motion is to dodging completely the position of set bar (30), second section (32) are kept away from the one end of first section (31) stretch into to shutting blade (40) in, first section (31) withdraw from completely lock shell (10), and stretch into in lock courage (20), partly of first section (31) is located in lock courage cover (60), another part of first section (31) is located in lock courage (20), lock courage (20) drive lock courage cover (60) for lock shell (10) rotate, the lock core unblock.

8. The lock cylinder according to claim 1, characterized in that the locking blade (40) has a recess (43) into which the lock bolt (30) protrudes, the lock bolt (30) has a projection (33), the recess (43) is offset from the projection (33) when the lock cylinder is not unlocked, the locking blade (40) stops the movement of the lock bolt (30), the locking blade (40) is moved in the first direction by the unlocking key when the lock cylinder is unlocked, the recess (43) is aligned with the projection (33), the projection (33) can protrude into the recess (43), and the lock bolt (30) is partially withdrawn from the lock housing (10).

9. The lock cylinder according to claim 8, characterized in that the locking blade (40) is a plurality of locking blades, each locking blade (40) is arranged in sequence along the direction of inserting the unlocking key into the lock cylinder, and when the unlocking key drives the locking blades (40) to move along the first direction and the second direction to the position of completely avoiding the lock bolt (30), the projection of the groove (43) on each locking blade (40) on the plane of the locking blade (40) is coincident.

10. Lock cylinder according to claim 1, characterized in that the lock housing (10) is provided with a locking groove into which the lock bolt (30) can be inserted, the side of the locking groove being perpendicular to the tangent of the lock housing (10) at the locking groove, and the side of the end of the lock bolt (30) that extends into the lock housing (10) being parallel to the side of the locking groove.

11. An unlocking key for unlocking the lock cylinder of any one of claims 1 to 10, comprising:

a first unlocking bit (70), wherein the first unlocking bit (70) can drive a locking blade (40) of the lock cylinder to move along a first direction;

a second unlocking bit (80), the second unlocking bit (80) being capable of driving the locking blade (40) to move in a second direction.

12. The unlocking key of claim 11, wherein said first unlocking bit (70) and said second unlocking bit (80) are respectively provided on two opposite surfaces of said unlocking key or on the same surface of said unlocking key.

13. The unlocking key according to claim 11, wherein said unlocking key has an unlocking slot, a side wall of said unlocking slot being said first unlocking position (70) and a bottom wall of said unlocking slot being said second unlocking position (80).

Images