Lock cylinder and unlocking key

Abstract

The present invention provides a lock core and an unlocking key. The lock core includes: a lock shell; a lock core, which is movably arranged in the lock shell; a lock bolt, which is movably arranged between the lock core and the lock shell and can switch between a locking position extending into the lock shell and an unlocking position withdrawn from the lock shell; a locking blade, which is movably arranged in the lock core and can move between positions for stopping or avoiding the lock bolt, and the locking blade has a movement in a first direction and a movement in a second direction. The present invention solves the problem of low anti-theft performance of the mechanical lock core in the prior art.

Description

Technical Field

[0001] The invention relates to a lock, in particular to a lock core and an unlocking key. Background Art

[0002] In recent years, with the update of lock technology opening methods and the improvement of tools, the anti-theft ability of traditional purely mechanical anti-theft lock cylinders has declined. Mechanical lock cylinders are often used as emergency unlocking channels reserved for door locks. Therefore, it is necessary to improve the mechanical anti-technical opening ability of the lock cylinder. Summary of the invention

[0003] The main purpose of the present invention is to provide a lock core and an unlocking key to solve the problem of low anti-theft performance of the mechanical lock core in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a lock core is provided, comprising: a lock shell; a lock core, which is movably arranged in the lock shell; a lock bolt, which is movably arranged between the lock core and the lock shell and can switch between a locked position extending into the lock shell and an unlocked position withdrawn from the lock shell; a locking blade, which is movably arranged in the lock core and can move between a position of stopping or avoiding the lock bolt, and the locking blade has movement in a first direction and movement in a second direction; when the lock core is locked, one end of the lock bolt extends from the lock core into the lock shell to hinder the rotation of the lock core, and the locking blade is located at a position of stopping the lock bolt, and the other end of the lock bolt is moved in a direction along the first direction and in a second direction. One end abuts against the locking blade, and the locking blade locks the lock bolt in the locked position; when the unlocking key unlocks the lock cylinder, the locking blade moves in the first direction under the drive of the first unlocking position of the unlocking key, and the locking blade moves to a position that avoids the lock bolt for the first time, and a part of the lock bolt can extend into the locking blade, and the lock bolt partly withdraws from the lock shell away from the locking blade, and a part of the lock bolt is still located in the lock shell, and the locking blade moves in the second direction under the drive of the second unlocking position of the unlocking key, and the locking blade moves in the direction away from the lock bolt and moves to a position that avoids the lock bolt for the second time, and the lock bolt can completely withdraw from the lock shell, and the lock cylinder is unlocked.

[0005] Further, the first direction is perpendicular to the movement direction of the lock bolt, and the second direction is parallel to the movement direction of the lock bolt.

[0006] Furthermore, the locking blade has an unlocking hole for inserting an unlocking key, and the inner wall of the unlocking hole has a protruding driving portion, and the unlocking key presses the driving portion to drive the locking blade to move.

[0007] Furthermore, there are multiple driving parts, including: a first driving part, the first unlocking position of the unlocking key squeezes the first driving part to drive the locking blade to move in the first direction; a second driving part, the second unlocking position of the unlocking key squeezes the second driving part to drive the locking blade to move in the second direction.

[0008] Furthermore, the first driving part and the second driving part are respectively located at the inner walls on two opposite sides of the unlocking hole or at the inner wall on the same side of the unlocking hole.

[0009] Furthermore, the lock core also includes a reset member, both ends of which are respectively abutted against the lock core and the locking blade, and can drive the locking blade to move in a direction away from the first direction and / or the second direction, so as to drive the locking blade to reset when the unlocking key is pulled out of the lock core.

[0010] Furthermore, the lock core also includes a lock core sleeve, which is arranged on the outside of the lock core and is located between the lock core and the lock shell. The lock shell, the lock core sleeve and the lock core can all rotate relative to each other, and the lock bolt includes a first section and a second section that are abutted in sequence, the first section is farther away from the locking blade than the second section, and when the lock core is not unlocked, the first section extends into the lock shell, and the interface between the first section and the second section coincides with the interface between the lock core and the lock core sleeve. The lock core can rotate relative to the lock core sleeve, and the lock core sleeve cannot rotate relative to the lock shell, and the lock core is locked. When the unlocking key unlocks the lock core, the locking blade moves along the first direction and the second direction under the drive of the unlocking key to a position that completely avoids the lock bolt, and the end of the second section away from the first section extends into the locking blade, the first section completely withdraws from the lock shell and extends into the lock core, a part of the first section is located in the lock core sleeve, and another part of the first section is located in the lock core, and the lock core drives the lock core sleeve to rotate relative to the lock shell, and the lock core is unlocked.

[0011] Furthermore, the locking blade has a groove for the lock bolt to extend into, and the lock bolt has a protrusion. When the lock core is not unlocked, the groove and the protrusion are misaligned, and the locking blade stops the movement of the lock bolt. When the lock core is unlocked, the locking blade moves along the first direction under the drive of the unlocking key, the groove is aligned with the protrusion, the protrusion can extend into the groove, and the lock bolt partially withdraws from the lock housing.

[0012] Furthermore, there are multiple locking blades, and the locking blades are arranged in sequence along the direction of the unlocking key inserted into the lock core. When the unlocking key drives the locking blade to move along the first direction and the second direction to a position that completely avoids the lock bolt, the projections of the grooves on each locking blade on the plane where the locking blade is located overlap.

[0013] Furthermore, a locking groove for the lock bolt to extend into is provided on the lock housing, the side of the locking groove is perpendicular to the tangent of the lock housing at the locking groove, and the side of one end of the lock bolt extending into the lock housing is parallel to the side of the locking groove.

[0014] According to another aspect of the present invention, an unlocking key is provided for unlocking the above-mentioned lock core, and the unlocking key includes: a first unlocking position, which can drive the locking blade of the lock core to move in a first direction; and a second unlocking position, which can drive the locking blade to move in a second direction.

[0015] Further, the first unlocking position and the second unlocking position are respectively arranged on two opposite surfaces of the unlocking key or are located on the same surface of the unlocking key.

[0016] Furthermore, the unlocking key has an unlocking slot, a side wall of the unlocking slot serves as a first unlocking position, and a bottom wall of the unlocking slot serves as a second unlocking position.

[0017] By applying the technical solution of the present invention, a floating locking blade is provided, and the locking blade can move in both a first direction and a second direction. In this way, when the unlocking key wants to unlock the lock cylinder, it is necessary to drive the locking blade to move in both the first direction and the second direction to achieve complete unlocking of the lock cylinder. When the lock cylinder is not unlocked, a part of the lock bolt extends into the lock shell, and the other part is located in the lock core, thereby hindering the relative rotation between the lock core and the lock shell. At this time, the locking blade is in the position of stopping the lock bolt, and the end of the lock bolt that does not extend into the lock shell abuts on the locking blade, so that the lock bolt cannot move freely, and the lock bolt is locked in the locked position; when the unlocking key unlocks the lock cylinder, the unlocking is roughly divided into two almost simultaneous processes, one process is that the first unlocking position on the unlocking key drives the locking blade to move in a first direction, and the locking blade moves to a position that avoids the lock bolt once. At this time, a part of the lock bolt can extend into the locking blade, and the end of the lock bolt extending into the lock shell partially withdraws from the lock shell, but a part is still in the lock shell, and the lock cylinder still remains locked. At the same time, the other process is that the second unlocking position of the unlocking key drives the locking blade to move in the second direction, and the locking blade moves in a direction away from the lock bolt, thereby avoiding the lock bolt for the second time, providing space for the movement of the lock bolt. At this time, the lock bolt can continue to move and completely withdraw from the lock shell, so that the lock core can rotate freely, realizing complete unlocking of the lock cylinder. The above-mentioned setting method increases the complexity of unlocking the lock core, increases the complexity and difficulty of cracking the lock core, increases the technical difficulty of unlocking, and improves the security of the lock core. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic structural diagram of the lock core when the lock is unlocked according to the first embodiment of the present invention is shown;

[0020] Figure 2 Shows Figure 1 A schematic diagram of the structure of the locking blade of the lock core in the first time of avoiding the lock bolt;

[0021] Figure 3 Shows Figure 1 A schematic diagram of the structure when the lock cylinder is fully unlocked;

[0022] Figure 4 Shows Figure 1 A schematic diagram of the structure of the locking blade of the lock core;

[0023] Figure 5 A schematic structural diagram showing the front side of the unlocking key of the present invention is shown;

[0024] Figure 6 A schematic diagram showing the structure of the reverse side of the unlocking key of the present invention is shown;

[0025] Figure 7 A schematic diagram showing the structure of the lock core when the lock is unlocked according to the second embodiment of the present invention;

[0026] Figure 8 Shows Figure 7 A schematic diagram of the structure of the locking blade of the lock core in the first time of avoiding the lock bolt;

[0027] Fig. 9 Shows Figure 7 A schematic diagram of the structure when the lock cylinder is fully unlocked;

[0028] Fig.10 Shows Figure 7 A schematic diagram of the structure of the locking blade of the lock core;

[0029] Fig.11 A schematic diagram of the structure of a lock core obtained by combining the lock core sleeve of the third embodiment of the present invention with the locking blade of the first embodiment when the lock core is not unlocked is shown;

[0030] Fig.12 Shows Fig.11 A schematic diagram of the structure of the locking blade of the lock core in the first time of avoiding the lock bolt;

[0031] Fig.13 Shows Fig.11 A schematic diagram of the structure when the lock cylinder is fully unlocked;

[0032] Fig.14 A schematic diagram of the structure of a lock core obtained by combining the lock core sleeve of the third embodiment of the present invention with the locking blade of the second embodiment when the lock core is not unlocked is shown;

[0033] Fig.15 Shows Fig.14 A schematic diagram of the structure of the locking blade of the lock core in the first time of avoiding the lock bolt; and

[0034] Fig.16 Shows Fig.14 Schematic diagram of the structure when the lock cylinder is fully unlocked.

[0035] The above drawings include the following reference numerals:

[0036] 10. Lock housing; 20. Lock core; 30. Lock bolt; 31. First section; 32. Second section; 33. Protrusion; 40. Lock blade; 41. Unlocking hole; 42. Drive unit; 421. First drive unit; 422. Second drive unit; 43. Groove; 50. Reset member; 60. Lock core sleeve; 70. First unlocking position; 80. Second unlocking position. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0038] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0039] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0040] In order to solve the problem of low anti-theft performance of the mechanical lock core in the prior art, the present invention provides a lock core and an unlocking key.

[0041] Embodiment 1

[0042] like Figures 1 to 4The lock core shown in the figure 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 core 20 and the lock shell 10, and can switch between a locking position extending into the lock shell 10 and an unlocking position withdrawn from the lock shell 10; the locking blade 40 is movably arranged in the lock core 20, and can move between positions that stop or avoid the lock bolt 30, and the locking blade 40 has movement in a first direction and movement in a second direction; when the lock core is locked, one end of the lock bolt 30 extends from the lock core 20 into the lock shell 10 to hinder the rotation of the lock core 20, and the locking blade 40 is located at a position that stops the lock bolt 30, and the other end of the lock bolt 30 abuts against the locking blade 40, the locking blade 40 locks the lock bolt 30 in the locked position; when the unlocking key unlocks the lock cylinder, the locking blade 40 is driven by the first unlocking position 70 of the unlocking key to move in the first direction, and the locking blade 40 moves to a position to avoid the lock bolt 30 for the first time, and a part of the lock bolt 30 can extend into the locking blade 40, and the end of the lock bolt 30 away from the locking blade 40 partially withdraws from the lock shell 10, and a part of the lock bolt 30 is still located in the lock shell 10, and the locking blade 40 is driven by the second unlocking position 80 of the unlocking key to move in the second direction, and the locking blade 40 moves in a direction away from the lock bolt 30, and moves to a position to avoid the lock bolt 30 for the second time, and the lock bolt 30 can completely withdraw from the lock shell 10, and the lock cylinder is unlocked.

[0043] This embodiment is provided with a floating locking blade 40, which can move in two directions, a first direction and a second direction. In this way, when the unlocking key wants to unlock the lock cylinder, it is necessary to drive the locking blade 40 to move in both the first direction and the second direction to achieve complete unlocking of the lock cylinder. When the lock cylinder is not unlocked, a part of the lock bolt 30 extends into the lock shell 10, and the other part is located in the lock core 20, thereby hindering the relative rotation between the lock core 20 and the lock shell 10. At this time, the locking blade 40 is located at a position to stop the lock bolt 30, and the end of the lock bolt 30 that 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 in the locked position. Figure 1 As shown; when the unlocking key unlocks the lock cylinder, the unlocking is roughly divided into two almost simultaneous processes, one process is as follows Figure 2 As shown, the first unlocking position 70 on the unlocking key drives the locking blade 40 to move in the first direction, and the locking blade 40 moves to a position to avoid the lock bolt 30. At this time, a part of the lock bolt 30 can be inserted into the locking blade 40, and the end of the lock bolt 30 that extends into the lock housing 10 partially withdraws from the lock housing 10, but a part of it is still in the lock housing 10, and the lock core is still locked. At the same time, another process as shown in FIG. Figure 3As shown, the second unlocking position 80 of the unlocking key drives the locking blade 40 to move in the second direction, and the locking blade 40 moves in the direction away from the lock bolt 30, thereby avoiding the lock bolt 30 for the second time, providing space for the movement of the lock bolt 30. At this time, the lock bolt 30 can continue to move and completely withdraw from the lock housing 10, so that the lock core 20 can rotate freely, and the lock core is completely unlocked. The above-mentioned setting method increases the complexity of unlocking the lock core, increases the complexity and difficulty of cracking the lock core, increases the technical difficulty of unlocking, and improves the safety of the lock core.

[0044] 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 simultaneous, and there is no obvious order relationship between the first avoidance and the second avoidance. However, the locking blade 40 must complete the first avoidance and the second avoidance together, that is, the locking blade 40 completely avoids the lock bolt 30 to achieve complete unlocking of the lock core.

[0045] In this embodiment, the first direction is perpendicular to the movement direction of the lock bolt 30 , and the second direction is parallel to the movement direction of the lock bolt 30 and is a direction away from the lock bolt 30 , so that the first direction is perpendicular to the second direction.

[0046] like Figure 4 As shown, the locking blade 40 has an unlocking hole 41 for inserting an unlocking key, and the inner wall of the unlocking hole 41 has a protruding driving portion 42. The unlocking key presses the driving portion 42 to drive the locking blade 40 to move.

[0047] Specifically, the driving part 42 is multiple and includes a first driving part 421 and a second driving part 422, wherein the first unlocking position 70 of the unlocking key presses the side wall of the first driving part 421 to drive the locking blade 40 to move in the first direction; the second unlocking position 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. In this embodiment, it is preferred that the first driving part 421 and the second driving part 422 are respectively arranged on the inner walls of the unlocking hole 41 on both sides opposite to each other, and the first driving part 421 is located at the inner wall of the unlocking hole 41 close to the lock bolt 30, and the second driving part 422 is located at the inner wall of the unlocking hole 41 away from the lock bolt 30.

[0048] like Figures 1 to 3 As shown, the lock core also includes a reset member 50, the two ends of which are respectively in contact with the lock core 20 and the locking blade 40, and can drive the locking blade 40 to move in a direction away from the first direction and / or the second direction, so as to drive the locking blade 40 to reset when the unlocking key is pulled out of the lock core, thereby realizing automatic reset of the locking blade 40.

[0049] Specifically, the reset member 50 is preferably a spring, and only one type of reset member 50 can be provided. The reset member 50 and the lock bolt 30 are respectively located on both sides of the locking blade 40, and the axis of the reset member 50 is parallel to the second direction. The reset member 50 can drive the locking blade 40 to move in a direction away from the second direction, and can also drive the locking blade 40 to move in a direction away from the first direction, that is, the reset member 50 realizes the comprehensive reset of the locking blade 40 in two directions. In this case, the reset member 50 and the locking blade 40 and the reset member 50 and the lock core 20 are fixedly connected. When the unlocking key drives the locking blade 40 to move in the first direction, the lock core 20 is locked. When the locking blade 40 moves in the second direction, the locking blade 40 squeezes the reset member 50, so that the reset member 50 is compressed. After the unlocking key is pulled out, the reset member 50 drives the locking blade 40 to move in the direction away from the second direction under the action of its own elastic force that restores its straight shape, so as to reset the locking blade 40 in the first direction. When the unlocking key drives the locking blade 40 to move in the second direction, the locking blade 40 squeezes the reset member 50, so that the reset member 50 is compressed. After the unlocking key is pulled out, the reset member 50 drives the locking blade 40 to move in the direction away from the second direction under the action of its own elastic force that extends outward, so as to reset the locking blade 40 in the second direction.

[0050] In addition to the above-mentioned arrangement, the reset member 50 may also be provided in two types, namely, a first reset member and a second reset member, wherein the axis of the first reset member is parallel to the first direction, and the first reset member is used to realize the automatic reset of the locking blade 40 in the first direction. When the unlocking key drives the locking blade 40 to move in the first direction, the locking blade 40 presses the first reset member, and the first reset member is compressed. When the unlocking key is pulled out of the lock cylinder, the locking blade 40 moves in a direction away from the first direction under the drive of the first reset member, thereby realizing the automatic reset of the locking blade 40 in the first direction. The axis of the second reset member is parallel to the second direction, and the second reset member is used to realize the automatic reset 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 reset member, and the second reset member is compressed. When the unlocking key is pulled out of the lock cylinder, the locking blade 40 moves in a direction away from the second direction under the drive of the second reset member, thereby realizing the automatic reset of the locking blade 40 in the second direction.

[0051] In this embodiment, the outer wall of the locking blade 40 close to the lock bolt 30 has a groove 43 for the lock bolt 30 to extend into, and the lock bolt 30 has a protrusion 33. When the lock cylinder is not unlocked, the groove 43 is misaligned with the protrusion 33, and 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 along the first direction to a position to avoid the lock bolt 30 under the drive of the unlocking key. At this time, the groove 43 is aligned with the protrusion 33, and the protrusion 33 can extend into the groove 43, and the lock bolt 30 partially withdraws from the lock housing 10. It should be noted that the depth of the groove 43 should not be too large. The depth should allow the lock bolt 30 to partially withdraw from the lock housing 10, and a part of the lock bolt 30 is still in the lock housing 10. It is necessary to avoid the lock bolt 30 completely withdrawing from the lock housing 10 due to excessive depth. The specific value can be determined accordingly according to actual conditions.

[0052] In this embodiment, there are multiple locking blades 40, and each locking blade 40 is arranged in sequence along the direction in which the unlocking key is inserted into the lock core. The lock bolt 30 is in a straight line shape as a whole for easy processing. When the unlocking key drives the locking blade 40 to move in the first direction and the second direction to a position that completely avoids the lock bolt 30, the projections of the grooves 43 on each locking blade 40 on the plane where the locking blade 40 is located overlap, and the grooves 43 of each locking blade 40 form a straight line, so that the lock bolt 30 can extend into all the grooves 43 at the same time. In this way, only when all the locking blades 40 move to a position that completely avoids the lock bolt 30, the lock bolt 30 can be completely withdrawn from the lock housing 10. As long as one groove 43 is not aligned with the protrusion 33, the lock bolt 30 cannot continue to move, thereby improving the safety of the lock core. Of course, the lock bolt 30 may not be configured in a straight line, for example, it may be configured in a multi-section curved shape. Accordingly, the shape formed by the groove 43 when the lock core is unlocked should also correspond to the shape of the lock bolt 30 to ensure that the lock bolt 30 can extend into all the grooves 43.

[0053] Preferably, the protrusion 33 and the groove 43 are both V-shaped, so that when the unlocking key is pulled out of the lock cylinder, the locking blade 40 moves under the drive of the first reset member, and the inclined surface of the groove 43 squeezes the protrusion 33 so that the protrusion 33 withdraws from the groove 43, and the lock bolt 30 re-extends into the lock housing 10, thereby realizing automatic locking of the lock cylinder.

[0054] In this embodiment, the lock housing 10 is provided with a locking groove for the bolt 30 to extend into, the side of the locking groove is perpendicular to the tangent of the lock housing 10 at the locking groove, and the side of the bolt 30 extending into one end of the lock housing 10 is parallel to the side of the locking groove. The above arrangement makes it possible for the lock housing 10 to exert only a tangential squeezing force on the bolt 30, without generating a radial squeezing force, even when the lock core 20 is twisted by an external force, thereby avoiding the situation where the lock housing 10 squeezes the bolt 30 and causes the bolt 30 to withdraw from the lock housing 10 when the lock core 20 is twisted by an external force, ensuring that the bolt 30 will not withdraw from the lock housing 10 when the lock core is not unlocked, thereby ensuring the reliability of the lock core locking and avoiding violent unlocking. The above arrangement is mainly for the side wall of the locking groove and the side wall of the end of the bolt 30 extending into the lock housing 10, while the bottom wall in the depth direction of the locking groove and the end face of the bolt 30 extending into the lock housing 10 can be set to a flat surface or an arc surface as needed. Preferably, the end of the lock bolt 30 extending into the lock housing 10 is square, and the locking groove is a square groove for easy processing.

[0055] Optionally, the driving force for the lock bolt 30 to exit the lock housing 10 can be achieved by gravity. In this case, no additional components need to be provided, and it is only necessary to ensure that the lock bolt 30 is located above the locking blade 40. Of course, a spring can also be provided to drive the lock bolt 30 to exit the lock housing 10.

[0056] This embodiment also provides an unlocking key, such as Figure 5 and Figure 6 As shown, for unlocking the lock core, the unlocking key includes a first unlocking position 70 and a second unlocking position 80. The first unlocking position 70 can drive the locking blade 40 of the lock core to move in the first direction; the second unlocking position 80 can drive the locking blade 40 to move in the second direction. The unlocking key of this embodiment has an unlocking groove, the side wall of the unlocking groove serves as the first unlocking position 70, and the bottom wall of the unlocking groove serves as the second unlocking position 80. Since a plurality of locking blades 40 are provided, the distances from each first unlocking position 70 to the axis of the unlocking key are different, and similarly, the depths of each second unlocking position 80 are also different.

[0057] Since the first driving part 421 and the second driving part 422 on the lock core are respectively arranged at the inner walls on both sides of the unlocking hole 41, two unlocking grooves are provided, wherein the side wall of one unlocking groove serves as the first unlocking position 70, and the bottom wall of the other unlocking groove in the depth direction serves as the second unlocking position 80. The two unlocking grooves are respectively arranged on the two opposite surfaces of the unlocking key, that is, the first unlocking position 70 and the second unlocking position 80 are respectively arranged on the front and back surfaces of the unlocking key. In this way, when the unlocking key unlocks the lock core, the first unlocking position 70 will squeeze the first driving part 421, so that the locking blade 40 moves in the first direction, and at the same time, the second unlocking position 80 will squeeze the second driving part 422, so that the locking blade 40 moves in the second direction, thereby unlocking the lock core.

[0058] Embodiment 2

[0059] The difference from the first embodiment is that the first driving part 421 and the second driving part 422 are arranged at different positions.

[0060] In this embodiment, the first driving part 421 and the second driving part 422 are arranged on the inner wall on the same side of the unlocking hole 41. It should be noted that since the second direction generally does not change, the position of the second driving part 422 needs to remain unchanged, that is, the second driving part 422 should be arranged on the inner wall of the unlocking hole 41 away from the lock bolt 30. In this case, the first driving part 421 can be arranged on the inner wall of the unlocking hole 41 away from the lock bolt 30, so that the first driving part 421 and the second driving part 422 are arranged on the same side, and the two can even be combined into one arrangement, such as Figures 7 to 10 Correspondingly, the two unlocking grooves on the unlocking key are also arranged on the same surface, and the two unlocking grooves can even be combined into one unlocking groove, the side wall of which serves as the first unlocking position 70 to drive the first driving part 421, and the bottom wall of which serves as the second unlocking position 80.

[0061] Embodiment 3

[0062] The difference from the first embodiment is that a locking sleeve 60 is additionally provided in this embodiment.

[0063] like Figures 11 to 16 As shown, the lock core sleeve 60 is sleeved on the outside of the lock core 20 and is located between the lock core 20 and the lock shell 10. The lock shell 10, the lock core sleeve 60 and the lock core 20 can rotate relative to each other. The lock bolt 30 includes a first section 31 and a second section 32 that are abutted in sequence. The first section 31 is farther away from the locking blade 40 than the second section 32. A part of the first section 31 can extend into the lock shell 10, and the length of the first section 31 is slightly greater than the thickness of the lock core sleeve 60.

[0064] When the lock cylinder is not unlocked, the first section 31 extends into the lock housing 10, and the interface between the first section 31 and the second section 32 coincides with the interface between the lock cylinder 20 and the lock cylinder sleeve 60. The lock cylinder 20 can rotate relative to the lock cylinder sleeve 60, but the lock cylinder sleeve 60 cannot rotate relative to the lock housing 10. The lock cylinder is locked, and the lock cylinder cannot be unlocked even if the lock cylinder 20 is rotated, thereby achieving idling of the lock cylinder 20. Fig.11 As shown;

[0065] When the unlocking key unlocks the lock cylinder, the locking blade 40 is driven by the unlocking key to move along the first direction to a position to avoid the lock bolt 30, the first section 31 partially withdraws from the lock housing 10 and extends into the lock cylinder 20, and the end of the second section 32 away from the first section 31 extends into the locking blade 40, and the interface between the first section 31 and the second section 32 is located in the lock cylinder 20. At this time, the lock cylinder remains locked, and the lock cylinder 20, the lock cylinder sleeve 60 and the lock housing 10 cannot rotate relative to each other. Fig.12 At the same time, the locking blade 40 is driven by the unlocking key to move along the second direction to the position of the secondary avoidance lock bolt 30, the first section 31 completely withdraws from the lock housing 10, and continues to extend into the lock cylinder 20, a part of the first section 31 is located in the lock cylinder sleeve 60, another part of the first section 31 is located in the lock cylinder 20, and the interface between the first section 31 and the second section 32 is located in the lock cylinder 20. By turning the unlocking key, the lock cylinder 20 can drive the lock cylinder sleeve 60 to rotate relative to the lock housing 10, and the lock cylinder is unlocked. Fig.13 shown.

[0066] In this embodiment, the lock cylinder 20 can be idle when the lock cylinder is not unlocked by adding a lock cylinder sleeve 60, thereby further increasing the complexity of unlocking the lock cylinder, increasing the difficulty of anti-technical opening, and ensuring the safety of the lock cylinder. It should be noted that the component for locking and unlocking the lock cylinder in this embodiment is the lock cylinder sleeve 60, which is connected to the subsequent transmission mechanism. Only when the lock cylinder sleeve 60 rotates relative to the lock housing 10, the lock cylinder is in the unlocked state.

[0067] The above-mentioned technical solution with the locking sleeve 60 can be applied to the first embodiment. Figures 11 to 13 As shown; it can also be applied to the second embodiment, such as Figures 14 to 16 shown.

[0068] It should be noted that, the multiple in the above embodiments refers to at least two.

[0069] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0070] 1. Solve the problem of low anti-theft performance of mechanical lock core in the prior art;

[0071] 2. The floating locking blade increases the complexity of unlocking the lock core, increases the complexity and difficulty of cracking the lock core, increases the technical difficulty of unlocking, and improves the security of the lock core;

[0072] 3. The lock cylinder sleeve allows the lock cylinder to idle when the lock cylinder is not unlocked, thereby further increasing the complexity of unlocking the lock cylinder, increasing the difficulty of anti-technical opening, and ensuring the safety of the lock cylinder.

[0073] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0074] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0075] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lock core, characterized in that: include: Lock housing (10); A lock core (20), the lock core (20) being movably arranged in the lock housing (10); A lock bolt (30), the lock bolt (30) being movably disposed between the lock core (20) and the lock housing (10), and being capable of switching between a locking position extending into the lock housing (10) and an unlocking position withdrawn from the lock housing (10); a locking blade (40), the locking blade (40) being movably disposed in the lock core (20) and being capable of moving between positions for stopping or avoiding the locking bolt (30), the locking blade (40) being capable of moving in a first direction and in a second direction; When the lock core is locked, one end of the lock bolt (30) extends from the lock core (20) into the lock housing (10) to prevent the lock core (20) from rotating, the locking blade (40) is located at a position to stop 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) in the locked position; When the unlocking key unlocks the lock core, the locking blade (40) moves along the first direction driven by the first unlocking position of the unlocking key, and the locking blade (40) moves to a position for avoiding the lock bolt (30) once, a part of the lock bolt (30) can extend into the locking blade (40), and an end of the lock bolt (30) away from the locking blade (40) partially withdraws from the lock housing (10), and a part of the lock bolt (30) is still located in the lock housing (10), and the locking blade (40) moves along the second direction driven by the second unlocking position of the unlocking key, and the locking blade (40) moves in a direction away from the lock bolt (30) and moves to a position for avoiding the lock bolt (30) twice, and the lock bolt (30) can completely withdraw from the lock housing (10), and the lock core is unlocked.

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

3. The lock core according to claim 1, characterized in that: The locking blade (40) has an unlocking hole (41) for inserting the unlocking key, and the inner wall of the unlocking hole (41) has a protruding driving portion (42). The unlocking key presses the driving portion (42) to drive the locking blade (40) to move.

4. The lock core according to claim 3, characterized in that: The driving parts (42) are multiple and include: a first driving portion (421), wherein the 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 driving portion (422), wherein the second unlocking position of the unlocking key presses the second driving portion (422) to drive the locking blade (40) to move along the second direction.

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

6. The lock core according to claim 1, characterized in that: The lock core further comprises a reset member (50), two ends of which are respectively in contact with the lock core (20) and the locking blade (40), and are capable of driving the locking blade (40) to move in a direction away from the first direction and / or the second direction, so as to drive the locking blade (40) to reset when the unlocking key is pulled out of the lock core.

7. The lock core according to claim 1, characterized in that: The lock core further comprises a lock core sleeve (60), wherein the lock core sleeve (60) is sleeved on the outside of the lock core (20) and is located between the lock core (20) and the lock housing (10); the lock housing (10), the lock core sleeve (60) and the lock core (20) are all capable of relative rotation; the lock bolt (30) comprises a first section (31) and a second section (32) abutting against each other in sequence; the first section (31) is farther 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 housing (10); the interface between the first section (31) and the second section (32) coincides with the interface between the lock core (20) and the lock core sleeve (60); the lock core (20) is capable of relative rotation relative to the lock core sleeve (60); The lock core (20) is locked and the locking blade (40) is moved along the first direction and the second direction to a position completely avoiding the lock bolt (30) under the drive of the unlocking key. The end of the second section (32) away from the first section (31) extends into the locking blade (40). The first section (31) completely withdraws from the lock housing (10) and extends into the lock core (20). A part of the first section (31) is located in the lock core sleeve (60), and another part of the first section (31) is located in the lock core (20). The lock core (20) drives the lock core sleeve (60) to rotate relative to the lock housing (10), and the lock core is unlocked.

8. The lock core according to claim 1, characterized in that: The locking blade (40) has a groove (43) for the lock bolt (30) to extend into, and the lock bolt (30) has a protrusion (33). When the lock core is not unlocked, the groove (43) and the protrusion (33) are misaligned, and the locking blade (40) blocks the movement of the lock bolt (30). When the lock core is unlocked, the locking blade (40) moves along the first direction under the drive of the unlocking key, and the groove (43) is aligned with the protrusion (33). The protrusion (33) can extend into the groove (43), and the lock bolt (30) partially withdraws from the lock housing (10).

9. The lock core according to claim 8, characterized in that: There are a plurality of locking blades (40), and each of the locking blades (40) is arranged in sequence along the direction in which the unlocking key is inserted into the lock core. When the unlocking key drives the locking blades (40) to move along the first direction and the second direction to a position that completely avoids the lock bolt (30), the projections of the grooves (43) on each of the locking blades (40) on the plane where the locking blades (40) are located overlap.

10. The lock core according to claim 1, characterized in that: The lock housing (10) is provided with a locking groove for the lock bolt (30) to extend into, the side surface of the locking groove being perpendicular to a tangent line of the lock housing (10) at the locking groove, and the side surface of one end of the lock bolt (30) extending into the lock housing (10) being parallel to the side surface of the locking groove.

11. An unlocking key, characterized in that: Used to unlock the lock cylinder according to any one of claims 1 to 10, the unlocking key comprises: A first unlocking position (70), wherein the first unlocking position (70) is capable of driving a locking blade (40) of the lock core to move along a first direction; A second unlocking position (80), wherein the second unlocking position (80) can drive the locking blade (40) to move along a second direction.

12. The unlocking key according to claim 11, characterized in that: The first unlocking position (70) and the second unlocking position (80) are respectively arranged on two opposite surfaces of the unlocking key or are located on the same surface of the unlocking key.

13. The unlocking key according to claim 11, characterized in that: The unlocking key has an unlocking slot, a side wall of the unlocking slot serves as the first unlocking position (70), and a bottom wall of the unlocking slot serves as the second unlocking position (80).

Images