CN109138638B - Lockset and key system - Google Patents

Abstract

The application provides a lockset and a key system. Wherein, the tool to lock includes the lock core and holds the accommodation body of lock core, and the lock core includes: an outer lock liner; an inner lock liner; a middle lock liner; the locking piece is stopped between the accommodating body and the outer lock liner when the middle lock liner rotates to a locking position, the outer lock liner is locked with the accommodating body, the locking piece withdraws from the accommodating body when the middle lock liner rotates to a detaching position, the outer lock liner and the accommodating body can relatively move, and the outer lock liner and the accommodating body can be detached; unlocking the assembly; the disassembly assembly is arranged among the inner lock liner, the middle lock liner and the outer lock liner to lock the middle lock liner; when the key is disassembled to unlock the unlocking assembly and the disassembling assembly, the inner lock liner can drive the middle lock liner to rotate relative to the outer lock liner, so that the middle lock liner moves from the locking position to the disassembling position. The application solves the problem that the lock cylinder in the prior art is inconvenient to detach.

Description

Lockset and key system

Technical Field

The application relates to the technical field of locks, in particular to a lock and a key system.

Background

The existing lock cylinder is arranged in the lockset, and is usually fixed by adopting a clamp spring, a pin or a screw and the like, so that the lock cylinder is complex to detach and replace, and is inconvenient to maintain; when a user changes the lock cylinder, the user often needs to take out the lock cylinder for replacement by adopting a violence means or a common dismounting tool, or needs to take out the lock for replacement, so that the labor cost is high, and the internal parts of the lock are easy to lose; the existing detachable lock core is large in size, the lock core is in a gourd shape or other special-shaped structures, and the universality is poor.

Disclosure of Invention

The application mainly aims to provide a lockset and key system so as to solve the problem that a lock cylinder in the prior art is inconvenient to detach.

In order to achieve the above object, according to one aspect of the present application, there is provided a lock including a cylinder and a housing accommodating the cylinder, the cylinder including: the outer lock liner is movably connected with the accommodating body; the inner lock liner is pivoted in the outer lock liner; the middle lock liner is pivoted between the outer lock liner and the inner lock liner and is provided with a locking position and a dismounting position; the locking piece is movably arranged in a space formed by the accommodating body, the outer lock liner and the middle lock liner, a part of the locking piece can extend into or withdraw from the accommodating body, when the middle lock liner rotates to a locking position, the locking piece is stopped between the accommodating body and the outer lock liner, the outer lock liner is locked with the accommodating body, when the middle lock liner rotates to a disassembling position, the locking piece withdraws from the accommodating body, the outer lock liner and the accommodating body can relatively move, and the outer lock liner and the accommodating body are detachable; the unlocking assembly is used for locking the middle lock liner and the outer lock liner from rotating when the unlocking key is used for unlocking the unlocking assembly, and the middle lock liner is kept at a locking position; the disassembly assembly is arranged among the inner lock liner, the middle lock liner and the outer lock liner to lock the middle lock liner; when the key is disassembled to unlock the unlocking assembly and the disassembling assembly, the inner lock liner can drive the middle lock liner to rotate relative to the outer lock liner, so that the middle lock liner moves from the locking position to the disassembling position.

Further, dismantle subassembly runs through interior lock courage, well lock courage and outer lock courage to include: a first marble; the first spring and the second spring are mutually abutted, the first spring is far away from the inner lock liner relative to the second spring, when the middle lock liner is locked by the disassembly component, the interface between the first spring and the second spring coincides with the interface between the inner lock liner and the middle lock liner, and when the middle lock liner is unlocked by the disassembly component, the interface between the first spring and the second spring coincides with the interface between the middle lock liner and the outer lock liner; and the reset piece is arranged between the first marble and the accommodating body and used for providing a reset force for the first marble and the second marble to move towards the direction approaching to the inner lock liner.

Further, the lock core also comprises a lock sleeve, the lock sleeve is arranged between the outer lock liner and the accommodating body and can be detached together with the outer lock liner, and one end of the reset piece is abutted against the inner wall of the lock sleeve.

Further, along the axial direction of the outer lock liner, the length of the middle lock liner is smaller than that of the inner lock liner and/or the outer lock liner, and the unlocking component is positioned on a section of the outer lock liner, which is not provided with the middle lock liner.

Further, the accommodating body is provided with a first concave part, the middle lock liner is provided with a second concave part, the outer lock liner is provided with a through hole, when the middle lock liner is positioned at the locking position, the second concave part is staggered with the through hole, the locking piece is positioned in the first concave part and the through hole, when the middle lock liner moves to the dismounting position, the second concave part is in butt joint with the through hole, and the locking piece can move into the second concave part to withdraw from the first concave part.

Further, the outer wall of the middle lock liner is provided with a protruding structure, the inner wall of the outer lock liner is provided with an avoidance structure, and the protruding structure is contained in the avoidance structure so as to control the rotation range of the middle lock liner.

Further, along the circumference of the outer lock liner, the angle corresponding to the two ends of the avoidance structure is smaller than the unlocking rotation angle of the inner lock liner.

Further, the inner lock liner is provided with an unlocking hole, and the middle lock liner is positioned at one end of the unlocking hole, which is far away from the unlocking key and/or is inserted by the disassembling key.

Further, the lock cylinder further comprises a clamp, and the clamp is arranged on the outer side of the inner lock cylinder to prevent the inner lock cylinder and/or the middle lock cylinder from moving axially relative to the outer lock cylinder.

According to another aspect of the present application, there is provided a key system including: the unlocking key is provided with a first unlocking position of an unlocking component of a lock cylinder of the driving lockset, and when the unlocking key is inserted into the lock cylinder, the unlocking key can only unlock the unlocking component; the disassembly key is provided with a first unlocking position and a second unlocking position of a disassembly component for driving the lock cylinder, and when the disassembly key is inserted into the lock cylinder, the disassembly key can unlock the unlocking component and the disassembly component simultaneously.

Further, on the removal key, the second unlocking position is closer to the lock cylinder than the first unlocking position.

Further, the unlocking key and/or the disassembling key are/is provided with a magnetic piece matched with the magnetic piece of the lock cylinder, and the magnetic piece is adsorbed to move when the lock cylinder is inserted so as to unlock the lock cylinder.

By means of the technical scheme, the locking piece, the middle lock liner and the dismounting assembly are arranged, the locking piece is clamped in the outer lock liner and the accommodating body, so that the outer lock liner and parts in the outer lock liner are connected with the accommodating body, namely, the lock cylinder is in an undetachable state, the middle lock liner is arranged between the outer lock liner and the inner lock liner, when the middle lock liner rotates to an unlocking position, the locking piece can enter the middle lock liner, so that the locking piece is not clamped between the accommodating body and the outer lock liner any more, the lock cylinder can be dismounted from the accommodating body, namely, the lock cylinder is in a dismountable state, the rotation of the middle lock liner is controlled by the dismounting assembly, when the dismounting assembly is not unlocked, the outer lock liner and the middle lock liner are locked by the dismounting assembly, so that the middle lock liner cannot be switched to an unlocking position relative to the outer lock liner, and the locking piece is clamped between the accommodating body and the outer lock liner, when the middle lock liner rotates to the unlocking assembly, the middle lock liner and the inner lock liner synchronously rotate, and the lock liner can be dismounted from the locking position by the locking assembly. Above-mentioned setting mode only needs to use the dismantlement key unblock to dismantle the subassembly and can make the lock core detachable, has greatly made things convenient for the dismantlement of lock core to the dismantlement process does not destroy the lock core, can also reinstallate after the lock core dismantles and continue to use, has prolonged the life of lock core.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

FIG. 1 shows a schematic view of a lock and unlock key of the present application;

FIG. 2 shows a schematic view of the lock of FIG. 1 when disassembled and unlocked;

FIG. 3 shows a cross-sectional view in the direction A-A of FIG. 2;

FIG. 4 shows a schematic view of the removal key of FIG. 3 after rotation;

fig. 5 shows a schematic view of the lock cylinder of fig. 1 in a normal unlocking condition;

FIG. 6 shows a cross-sectional view in the direction B-B in FIG. 5;

FIG. 7 is a schematic diagram showing the structure of the unlocking key of FIG. 6 after rotation;

FIG. 8 shows a schematic diagram of the structure of an unlocking key of the key system of the present application; and

fig. 9 shows a schematic diagram of the structure of a removal key of the key system of the present application.

Wherein the above figures include the following reference numerals:

10. a housing body; 11. a first concave portion; 20. an outer lock liner; 21. a via hole; 22. an avoidance structure; 30. an inner lock liner; 31. unlocking the hole; 40. a middle lock liner; 41. a second concave portion; 42. a bump structure; 50. a locking member; 60. unlocking the assembly; 70. disassembling the assembly; 71. a first marble; 72. a second marble; 73. a reset member; 80. a lock sleeve; 90. a clamp; 100. a magnetic conductive member; 110. a dust-proof assembly; 120. unlocking the key; 121. a first unlocking position; 122. a magnetic member; 130. disassembling a key; 131. and a second unlocking position.

Detailed Description

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

It is noted that 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 unless otherwise indicated.

In the present application, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the component itself in the vertical, upright or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present application.

In order to solve the problem that a lock cylinder in the prior art is inconvenient to detach, the application provides a lockset and a key system.

The lockset shown in fig. 1 to 7, wherein the lockset comprises a lock cylinder and a containing body 10 for containing the lock cylinder, the lock cylinder comprises an outer lock liner 20, an inner lock liner 30, a middle lock liner 40, a locking piece 50, an unlocking component 60 and a disassembling component 70, and the outer lock liner 20 is movably connected with the containing body 10; the inner lock cylinder 30 is pivotally arranged in the outer lock cylinder 20; the middle lock liner 40 is pivoted between the outer lock liner 20 and the inner lock liner 30 and has a locking position and a detaching position; the locking piece 50 is movably arranged in a space formed by the accommodating body 10, the outer lock liner 20 and the middle lock liner 40, a part of the locking piece 50 can extend into or withdraw from the accommodating body 10, when the middle lock liner 40 rotates to a locking position, the locking piece 50 is stopped between the accommodating body 10 and the outer lock liner 20, the outer lock liner 20 is locked with the accommodating body 10, when the middle lock liner 40 rotates to a detaching position, the locking piece 50 withdraws from the accommodating body 10, the outer lock liner 20 and the accommodating body 10 can relatively move, and the outer lock liner 20 and the accommodating body 10 are detachable; the unlocking assembly 60 is arranged between the inner lock liner 30 and the outer lock liner 20 to lock the inner lock liner 30, when the unlocking key 120 unlocks the unlocking assembly 60, the inner lock liner 30 and the outer lock liner 20 can rotate relatively, the lock cylinder is unlocked, the middle lock liner 40 and the outer lock liner 20 are locked, and the middle lock liner 40 is kept at a locking position; the disassembly component 70 is arranged among the inner lock liner 30, the middle lock liner 40 and the outer lock liner 20 to lock the middle lock liner 40; when the disassembly key 130 unlocks the unlocking assembly 60 and the disassembly assembly 70, the inner lock cylinder 30 can drive the middle lock cylinder 40 to rotate relative to the outer lock cylinder 20, so that the middle lock cylinder 40 moves from the locking position to the disassembly position.

In this embodiment, through being provided with locking piece 50, well lock courage 40 and dismantlement subassembly 70, locking piece 50 card is established in outer lock courage 20 and holding body 10, thereby be in the undetachable state with the part in outer lock courage 20 and the outer lock courage 20 and holding body 10, well lock courage 40 sets up between outer lock courage 20 and inner lock courage 30, in the middle of lock courage 40 rotates the unblock position, locking piece 50 can enter into in the middle of lock courage 40, thereby locking piece 50 no longer blocks and establishes between holding body 10 and outer lock courage 20, the lock core can be dismantled from holding body 10, the lock core is in the detachable state, and the rotation of well lock courage 40 is again through the control of dismantlement subassembly 70, when dismantlement subassembly 70 is not unlocked, the locking between outer lock courage 20 and the well lock courage 40, thereby make well lock courage 40 unable switch to the unblock position, also make locking piece 50 keep the card establish between holding body 10 and outer lock courage 20, when dismantlement subassembly 70 and inner lock courage 40 rotate the lock courage 30 and the lock down the lock courage 30, the lock is moved by the synchronous lock down to the lock courage 30, the lock is removed to the lock down by the position when dismantling the rotation of well lock courage 40. The above arrangement can make the lock core detachable only by using the disassembling key 130 to unlock the disassembling component 70, so that the disassembly of the lock core is greatly facilitated, the lock core is not damaged in the disassembly process, the lock core can be reinstalled for continuous use after being disassembled, and the service life of the lock core is prolonged.

It should be noted that, the lock core of this implementation needs to be dismantled with dedicated disassembly key 130, and the unlocking key 120 that is used during normal unblock, unlocking key 120 only can unlock unlocking assembly 60 for can rotate relatively between inner lock courage 30 and the outer lock courage 20, realize the normal unblock of lock core, and use disassembly key 130 during the dismantlement unblock, because disassembly key 130 rotates inner lock courage 30 and drives well lock courage 40 rotation, therefore, disassembly key 130 needs unlock unlocking assembly 60 and dismantlement assembly 70 simultaneously, so that inner lock courage 30 and well lock courage 40 can both rotate. Thus, the disassembling key has the same anti-theft grade as the unlocking key, and the lock core can not be disassembled under the condition of not unlocking by a common disassembling tool, so that the disassembling key has the characteristic of high safety grade

The pivotal arrangement in this embodiment means that the two can rotate relatively, for example, the pivotal arrangement of the inner lock container 30 in the outer lock container 20 means that the inner lock container 30 and the outer lock container 20 can rotate relatively; the fact that the middle lock core 40 is pivotally arranged between the outer lock core 20 and the inner lock core 30 means that the middle lock core 40 and the inner lock core 30 and the outer lock core 20 can rotate relatively.

It should be noted that, in this embodiment, the housing 10 is taken as an example of a lock case, and of course, the housing 10 may be implemented by other components of the lock. When the function of the housing 10 is replaced by other parts of the lock, the structure of the other parts to be engaged with the lock cylinder is the same as the structure of the lock case to be engaged with the lock cylinder of the present embodiment, for example, the lock case of the present embodiment is engaged with the lock cylinder through the first recess 11, and the other parts of the lock should also have a recess to be engaged with the lock cylinder. The unlocking component 60 in this embodiment is an unlocking marble set, and the disassembling component 70 is a disassembling marble set, however, the unlocking component 60 may be configured as an unlocking blade set, and the disassembling component 70 may be configured as a disassembling blade set.

In this embodiment, the lock core is cylindrical as a whole, through holes penetrating radially are formed in the inner lock cylinder 30, the middle lock cylinder 40 and the outer lock cylinder 20, the disassembly component 70 penetrates through the inner lock cylinder 30, the middle lock cylinder 40 and the outer lock cylinder 20 and is mostly located in the through holes, the disassembly component 70 comprises a first marble 71, a second marble 72 and a reset piece 73, the first marble 71 and the second marble 72 are abutted with each other, the first marble 71 is far away from the inner lock cylinder 30 relative to the second marble 72, when the disassembly component 70 locks the middle lock cylinder 40, the interface between the first marble 71 and the second marble 72 coincides with the interface between the inner lock cylinder 30 and the middle lock cylinder 40, at this moment, the rotation of the inner lock cylinder 30 can not drive the middle lock cylinder 40 to rotate, when the disassembly component 70 unlocks the middle lock cylinder 40, the interface between the first marble 71 and the second marble 72 coincides with the middle lock cylinder 40 and the outer lock cylinder 20, at this moment, the inner lock cylinder 30 and the middle lock cylinder 40 synchronously rotate; the return member 73 is a spring, and the return member 73 is disposed between the first pin 71 and the lock case to provide a return force to the first pin 71 and the second pin 72 in a direction approaching the inner cylinder 30, so that the dismounting assembly 70 is always in a locked state when not unlocked.

The unlocking assembly 60 is similar in structure to the detachment assembly 70, except that the unlocking assembly 60 is disposed between the outer lock bladder 20 and the inner lock bladder 30, and is not in a coupled relationship with the middle lock bladder 40, and the unlocking assembly 60 only locks the relative movement between the outer lock bladder 20 and the inner lock bladder 30.

Optionally, the lock cylinder further includes a lock sleeve 80, where the lock sleeve 80 is disposed between the outer lock cylinder 20 and the lock shell, and can be detached together with the outer lock cylinder 20, and one end of the spring abuts against an inner wall of the lock sleeve 80. The unlocking assembly 60 also includes a spring, and the lock sleeve 80 provides a place for the spring of the disassembling assembly 70 and the spring of the unlocking assembly 60 to abut against the lock case, so that the spring does not need to abut against the lock case, and when the unlocking assembly is disassembled, the lock sleeve 80 and the parts such as the outer lock cylinder 20, the middle lock cylinder 40, the inner lock cylinder 30 and the like in the lock sleeve 80 are disassembled together, so that the disassembled parts are integrated, and meanwhile, the reassembly is convenient. Accordingly, the lock sleeve 80 also has a hole through which the locking member 50 passes, the hole being coaxially disposed and the same size as the through hole 21.

Further alternatively, the inner ring of the lock case has a limiting protrusion, and the lock sleeve 80 has a limiting groove, and the limiting groove extends into the limiting protrusion, so that circumferential rotation of the lock sleeve 80 relative to the lock case is limited, and alignment of the hole on the lock sleeve 80 with the through hole 21 is ensured.

In this embodiment, along the axial direction of the outer lock liner 20, the length of the middle lock liner 40 is smaller than that of the inner lock liner 30 and/or the outer lock liner 20, and the unlocking component 60 is located on a segment of the outer lock liner 20 where the middle lock liner 40 is not provided, so that the disassembling component 70 and the unlocking component 60 do not affect each other, and the unlocking component 60 does not affect the locking and unlocking of the middle lock liner 40, so that the lock core is kept in an undetachable state when the unlocking key 120 is normally unlocked.

As shown in fig. 3 and 4, the lock case and the middle lock container 40 have a first recess 11 and a second recess 41, respectively, the outer lock container 20 has a through hole 21, the second recess 41 is dislocated from the through hole 21 when the middle lock container 40 is in the locked position, the locking member 50 is located in the first recess 11 and the through hole 21, and when the middle lock container 40 is moved to the detached position, the second recess 41 is abutted with the through hole 21, and the locking member 50 can be moved into the second recess 41 to withdraw from the first recess 11.

Specifically, the locking piece 50 is spherical, the first concave portion 11 and the second concave portion 41 are arc-shaped, the size of the through hole 21 is smaller than the diameter of the locking piece 50 along the radial direction of the outer lock cylinder 20, the sizes of the first concave portion 11 and the through hole 21 are approximately equal to the diameter of the locking piece 50, so that when the locking piece 50 passes through the through hole 21 and the first concave portion 11, the locking piece 50 keeps stable in position, the problem that the locking piece 50 is separated from the first concave portion 11 due to movement of the locking piece 50 is avoided, correspondingly, the size of the second concave portion 41 is the same as the size of the first concave portion 11, when the inner lock cylinder 40 rotates to an unlocking position, the locking piece 50 can move into the through hole 21 and the second concave portion 41 under the action of gravity or under the extrusion of the first concave portion 11, and accordingly the locking piece 50 is withdrawn from the first concave portion 11, and the lock cylinder is detached.

In this embodiment, the outer wall of the middle lock core 40 has a protrusion structure 42, the inner wall of the outer lock core 20 has an avoidance structure 22, and the protrusion structure 42 is accommodated in the avoidance structure 22 to control the rotation range of the middle lock core 40.

Specifically, the protrusion structure 42 is a fan-shaped protrusion, the avoiding structure 22 is a fan-shaped notch, the fan-shaped protrusion moves in the avoiding structure 22 and along the circumferential direction of the outer lock liner 20, the angle corresponding to two ends of the fan-shaped notch is smaller than the normal unlocking rotation angle of the inner lock liner 30, and the normal unlocking is to unlock the lock cylinder by using the unlocking key 120, so that the rotation angle of the inner lock liner 30 during normal unlocking is larger than the rotation angle of the inner lock liner 30 during unlocking when the inner lock liner 40 is driven to be detached, as shown in fig. 4 and 7, the disassembling key 130 only can enable the lock cylinder to be detached and cannot enable the inner lock liner 30 to rotate by the rotation angle required by normal unlocking, so that other parts, such as a lock tongue, connected with the lock cylinder on the lock are kept in a locking state, and reliability and safety of the whole lock are guaranteed. Because the inner lock liner 30 and the outer lock liner 20 of the embodiment are coaxially arranged, the angles corresponding to the two ends of the fan-shaped notch are central angles corresponding to the two ends of the fan-shaped notch, and when the inner lock liner 30 and the outer lock liner 20 are arranged in other ways, the sizes of the fan-shaped notch are only required to ensure that the rotation angle of the inner lock liner 30 and the middle lock liner 40 when being disassembled and unlocked is smaller than the rotation angle of the inner lock liner 30 when being normally unlocked.

As shown in fig. 2, the inner lock container 30 has an unlocking hole 31, the locking member 50 and the dismounting assembly 70 are disposed on opposite sides of the unlocking hole 31, and the inner lock container 40 is located at one end of the unlocking hole 31 far away from the unlocking key 120 and/or the dismounting key 130, such that the dismounting key 130 unlocks the unlocking assembly 60 before unlocking the dismounting assembly 70, and simultaneously the dismounting assembly 70 is disposed at an inner position of the lock cylinder, so as to ensure the security of the lock cylinder. Of course, the locking member 50 and the removal assembly 70 may be disposed at any location along the circumference of the outer lock cylinder 20.

As shown in fig. 1, the lock cylinder further includes a collar 90, the collar 90 being disposed outside the liner 30 to resist axial movement of the liner 30 and/or the liner 40 relative to the outer liner 20.

Specifically, the end of the inner lock container 30, which is far away from the insertion of the key system, is provided with a slot, the slot penetrates the inner lock container 30 along the radial direction of the inner lock container 30 for being connected with other components, the inner ring of the clamp 90 is provided with a bulge, and the bulge can extend into the slot, so that the circumferential movement of the clamp 90 is limited, the outer side wall of the bottom of the slot of the inner lock container 30 is circumferentially provided with a clamping groove, the inner ring of the clamp 90 is clamped in the clamping groove and is abutted with the end face of the outer lock container 20, the end of the inner lock container 30, which is far away from the slot, is provided with a stop flange, and the two ends of the outer lock container 20 are respectively abutted on the stop flange and the clamp 90, so that the inner lock container 30 is installed in the outer lock container 20, and the axial movement of the inner lock container 30 and the middle lock container 40 is limited. The inner wall of the outer lock container 20, which is close to one end of the clamp 90, is provided with a step structure, one end of the middle lock container 40 is abutted on the step structure, and the other end is also abutted on the clamp 90, so that reliable connection between the inner lock container 30 and the middle lock container 40 and the outer lock container 20 is realized, and meanwhile, the installation and the disassembly are convenient.

In this embodiment, the lock cylinder further includes a magnetic conductive member 100, where the magnetic conductive member 100 is movably disposed between the inner lock cylinder 30 and the outer lock cylinder 20 to prevent relative rotation between the inner lock cylinder 30 and the outer lock cylinder 20, and when the unlocking key 120 and/or the disassembling key 130 are inserted into the lock cylinder, the magnetic member 122 of the unlocking key 120 and/or the disassembling key 130 adsorbs the magnetic conductive member 100 to move, so that relative rotation between the inner lock cylinder 30 and the outer lock cylinder 20 can occur, thereby realizing an anti-error function of the lock cylinder. The magnetic conductive member 100 is preferably a soft magnetic ball and is disposed along an axial direction of the inner cylinder 30, and correspondingly, a soft magnetic spring is further disposed to provide a restoring force for locking the plug to the soft magnetic ball.

Optionally, the lock cylinder further includes a dust-proof component 110, the dust-proof component 110 is connected with a stop flange of the inner lock cylinder 30 and covers an inlet end of the unlocking hole 31, the dust-proof component 110 has a dust-proof cover that can be opened and closed, when the unlocking key 120 and/or the disassembling key 130 are inserted into the inner lock cylinder 30, the unlocking key 120 and/or the disassembling key 130 squeeze the dust-proof cover, so that the dust-proof cover is opened, when the unlocking key 120 and/or the disassembling key 130 are withdrawn from the inner lock cylinder 30, the dust-proof cover is closed, so that impurities are prevented from entering the lock cylinder, and the service life of the lock cylinder is prolonged.

As shown in fig. 8 and 9, the present embodiment further provides a key system including an unlocking key 120 and a detaching key 130, wherein the unlocking key 120 has a first unlocking position 121 for driving the unlocking component 60 of the lock cylinder, and when the unlocking key 120 is inserted into the lock cylinder, the unlocking key 120 can unlock only the unlocking component 60; the removal key 130 has a first unlocking position 121 and a second unlocking position 131 of the removal assembly 70 that drives the lock cylinder, the removal key 130 being capable of unlocking both the unlocking assembly 60 and the removal assembly 70 when the removal key 130 is inserted into the lock cylinder. Normal unlocking and disassembly unlocking of the lock cylinder are achieved through the unlocking key 120 and the disassembly key 130, so that the lock cylinder is convenient to disassemble and the safety of the lock cylinder is not affected. The first unlocking bit 121 and the second unlocking bit 131 may be mechanically toothed, and may be provided with mechanical teeth on both sides of the unlocking key 120 or the key blade of the disassembling key 130 to improve the security of the key system.

Optionally, on the disassembling key 130, the second unlocking position 131 is closer to the lock cylinder than the first unlocking position 121, and the depth of the second unlocking position 131 is lower than the depth of the corresponding position of the unlocking key 120, so that the disassembling key 130 can correspond to the setting position of the disassembling component 70 and the unlocking component 60 of the lock cylinder, and the reliability of the disassembling and unlocking of the disassembling key 130 is ensured.

Optionally, the unlocking key 120 and/or the disassembling key 130 has a magnetic member 122, i.e. a magnetic steel, cooperating with the magnetically permeable member 100 of the lock cylinder and adsorbs the magnetically permeable member 100 to move when the lock cylinder is inserted to unlock the lock cylinder.

The lockset and key system of the embodiment is used as follows:

normal unlocking: as shown in fig. 5 to 7, in the locked state, the inner lock cylinder 30 and the outer lock cylinder 20 are locked by the unlocking member 60 and the soft magnetic marble, and the middle lock cylinder 40 and the outer lock cylinder 20 are locked by the dismounting member 70. When the unlocking key 120 is inserted to unlock, the mechanical tooth shape on the unlocking key 120 enables the unlocking component 60 to unlock, but the disassembling component 70 keeps locked, and meanwhile, the magnetic steel adsorbs the soft magnetic marble to enable the soft magnetic marble to leave the locking groove on the outer lock liner 20. At this time, the unlocking key 120 is turned to drive the inner lock cylinder 30 to rotate for normal unlocking.

Disassembly unlocking: as shown in fig. 2 to 4, in the locked state, the inner lock cylinder 30 and the outer lock cylinder 20 are locked by the unlocking component 60 and the soft magnetic marble, and the middle lock cylinder 40 and the outer lock cylinder 20 are locked by the dismounting component 70. When the disassembly key 130 is inserted for unlocking, the mechanical tooth shape on the disassembly key 130 enables the unlocking component 60 and the disassembly component 70 to be unlocked, and meanwhile, the magnetic steel adsorbs the soft magnetic marble to enable the soft magnetic marble to leave the locking groove on the outer lock liner 20. At this time, the disassembly key 130 is rotated to drive the inner lock cylinder 30 and the middle lock cylinder 40 to rotate together, and when the middle lock cylinder 40 rotates to the butt joint of the second concave part 41 and the through hole 21, the steel ball enters into the second concave part 41, so that the lock shell and the outer lock cylinder 20 are unlocked, and the disassembly and unlocking of the lock cylinder are realized. After the lock cylinder is taken out, the disassembling key 130 can be smoothly pulled out after being rotated back to the original position. When the lock core is replaced, the disassembly key 130 is inserted into the new inner lock cylinder 30, the inner lock cylinder 40 is rotated until the second concave part 41 is in butt joint with the through hole 21, so that the steel ball falls into the second concave part 41, at the moment, the lock sleeve 80 and parts in the lock sleeve 80 can be installed in the lock shell, after the disassembly key 130 is rotated to the initial position and pulled out, the steel ball enters the first concave part 11 under the extrusion of the second concave part 41, and the outer lock cylinder 20 and the lock shell are locked again.

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

1. the problem that a lock cylinder in the prior art is inconvenient to detach is solved;

2. when the lock is used, the lock cylinder can be detached only by unlocking the detaching assembly by using the detaching key, so that the lock cylinder is convenient to detach;

3. the lock core is not damaged in the disassembling process, and the lock core can be reinstalled for continuous use after being disassembled, so that the service life of the lock core is prolonged;

4. the disassembling key has the same anti-theft grade as the unlocking key, and the lock core cannot be disassembled under the condition of not unlocking by a common disassembling tool, so that the disassembling key has the characteristic of high safety grade;

5. the lock core has compact structure, small structural external dimension, cylindrical lock core appearance, can meet the structural installation dimension requirement of various locksets, can be matched with various locksets for use, and has high universality.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.

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 exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated 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 the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (12)

1. A lock, characterized in that it comprises a lock cylinder and a containing body (10) containing said lock cylinder, said lock cylinder comprising:

the outer lock liner (20) is movably connected with the accommodating body (10);

the inner lock liner (30) is pivoted in the outer lock liner (20);

the middle lock liner (40) is pivoted between the outer lock liner (20) and the inner lock liner (30) and is provided with a locking position and a dismounting position;

the locking piece (50), the locking piece (50) is movably arranged in a space formed by the accommodating body (10), the outer lock liner (20) and the middle lock liner (40), a part of the locking piece (50) can extend into or withdraw from the accommodating body (10), when the middle lock liner (40) rotates to the locking position, the locking piece (50) is stopped between the accommodating body (10) and the outer lock liner (20), the outer lock liner (20) is locked with the accommodating body (10), when the middle lock liner (40) rotates to the dismounting position, the locking piece (50) is withdrawn from the accommodating body (10), the outer lock liner (20) and the accommodating body (10) can move relatively, and the outer lock liner (20) and the accommodating body (10) can be detached;

the unlocking assembly (60), when the unlocking key (120) unlocks the unlocking assembly (60), the middle lock liner (40) and the outer lock liner (20) are locked, and the middle lock liner (40) is kept at the locking position;

the disassembly assembly (70) is arranged among the inner lock liner (30), the middle lock liner (40) and the outer lock liner (20) so as to lock the middle lock liner (40); when the disassembly key (130) is used for unlocking the unlocking assembly (60) and the disassembly assembly (70), the inner lock liner (30) can drive the middle lock liner (40) to rotate relative to the outer lock liner (20), so that the middle lock liner (40) moves from the locking position to the disassembly position.

2. The lock according to claim 1, wherein the dismounting assembly (70) extends through the inner lock cylinder (30), the middle lock cylinder (40) and the outer lock cylinder (20), and comprises:

a first pin (71);

the first marble (71) and the second marble (72) are in mutual abutting connection, the first marble (71) is far away from the inner lock liner (30) relative to the second marble (72), when the disassembly assembly (70) locks the middle lock liner (40), the interface between the first marble (71) and the second marble (72) coincides with the interface between the inner lock liner (30) and the middle lock liner (40), and when the disassembly assembly (70) unlocks the middle lock liner (40), the interface between the first marble (71) and the second marble (72) coincides with the interface between the middle lock liner (40) and the outer lock liner (20);

and a reset piece (73), wherein the reset piece (73) is arranged between the first marble (71) and the accommodating body (10) so as to provide a reset force for the first marble (71) and the second marble (72) to move towards the direction approaching the inner lock liner (30).

3. The lock according to claim 2, characterized in that the lock cylinder further comprises a lock sleeve (80), the lock sleeve (80) is arranged between the outer lock cylinder (20) and the accommodating body (10) and can be detached together with the outer lock cylinder (20), and one end of the reset piece (73) is abutted against the inner wall of the lock sleeve (80).

4. Lockset according to claim 1, characterized in that the length of the middle lock cylinder (40) is smaller than the length of the inner lock cylinder (30) and/or the outer lock cylinder (20) along the axial direction of the outer lock cylinder (20), the unlocking assembly (60) being located on a section of the outer lock cylinder (20) where the middle lock cylinder (40) is not provided.

5. The lock according to claim 1, wherein the housing body (10) has a first recess (11), the middle lock cylinder (40) has a second recess (41), the outer lock cylinder (20) has a through hole (21), the second recess (41) is displaced from the through hole (21) when the middle lock cylinder (40) is in the locking position, the locking member (50) is located in the first recess (11) and the through hole (21), the second recess (41) is in abutment with the through hole (21) when the middle lock cylinder (40) is moved to the removal position, and the locking member (50) is movable into the second recess (41) to exit the first recess (11).

6. The lock according to any one of claims 1 to 5, wherein the outer wall of the inner cylinder (40) has a protruding structure (42), the inner wall of the outer cylinder (20) has a relief structure (22), and the protruding structure (42) is accommodated in the relief structure (22) to control the rotation range of the inner cylinder (40).

7. The lock according to claim 6, wherein the angle corresponding to the two ends of the avoidance structure (22) is smaller than the angle of unlocking rotation of the inner lock cylinder (30) along the circumferential direction of the outer lock cylinder (20).

8. Lockset according to claim 1, characterized in that the inner lock cylinder (30) has an unlocking hole (31), the middle lock cylinder (40) being located at the end of the unlocking hole (31) remote from the unlocking key (120) and/or the detaching key (130) being inserted.

9. The lock according to claim 1, wherein the lock cylinder further comprises a collar (90), the collar (90) being arranged outside the inner cylinder (30) to hinder axial movement of the inner cylinder (30) and/or the middle cylinder (40) relative to the outer cylinder (20).

10. A key system for unlocking a lock according to any one of claims 1 to 9, the key system comprising:

an unlocking key (120), the unlocking key (120) having a first unlocking position (121) of an unlocking assembly (60) driving a lock cylinder of a lock, the unlocking key (120) being only capable of unlocking the unlocking assembly (60) when the unlocking key (120) is inserted into the lock cylinder;

a disassembly key (130), the disassembly key (130) having a first unlocking position (121) and a second unlocking position (131) driving a disassembly assembly (70) of the lock cylinder, the disassembly key (130) being capable of simultaneously unlocking the unlocking assembly (60) and the disassembly assembly (70) when the disassembly key (130) is inserted into the lock cylinder.

11. The key system according to claim 10, characterized in that on the removal key (130), the second unlocking bit (131) is closer to the lock cylinder than the first unlocking bit (121).

12. The key system according to claim 10, wherein the unlocking key (120) and/or the dismounting key (130) have magnetic members (122) cooperating with magnetically permeable members (100) of the lock cylinder and adsorb the magnetically permeable members (100) to move when the lock cylinder is inserted for unlocking the lock cylinder.