CN114046096A - Idle lock core and lockset - Google Patents

Abstract

The invention provides an idle lock cylinder and a lockset, and relates to the technical field of locksets. The idle lock core comprises a lock core mechanism and an idle sleeve; the idle sleeve is sleeved outside the lock cylinder mechanism and is used for being connected with the shifting wheel; the lock courage mechanism includes courage body subassembly and separation and reunion subassembly, is equipped with the key passageway in the courage body subassembly, and separation and reunion subassembly is including setting up first separation and reunion piece and the second separation and reunion piece in the courage body subassembly, and the second separation and reunion piece sets up on first separation and reunion piece, and wherein, second separation and reunion piece and the linkage cooperation of first separation and reunion piece, first separation and reunion piece are used for cooperating with idle running sleeve separation and reunion, and the second separation and reunion piece is used for cooperating with courage body subassembly separation and reunion. The idle rotation lock cylinder provided by the invention combines the clutch assembly and the liner assembly and is arranged in the idle rotation sleeve, the function of the whole clutch assembly is realized in the idle rotation lock cylinder, a lock shell of a lock is not required, the processing procedure is further simplified, the assembly is convenient, the integral structure is more compact, the operation is stable and reliable, and the service life is long.

Description

Idle lock core and lockset

Technical Field

The application relates to the technical field of locks, in particular to an idle lock cylinder and a lock.

Background

The idle running type lockset has good explosion-proof performance and is popular with people. The existing idling lock usually comprises a clutch structure and an idling lock cylinder, when a correct key is not inserted, the clutch structure is not matched with the lock cylinder, and the lock cylinder is in an idling state, so that the lock cylinder cannot be damaged no matter how large torque force is passed, and the unlocking purpose is achieved.

However, the clutch structure and the lock core are independently arranged in the existing idle lock, and the function of the clutch structure is realized by means of the lock shell of the lock, so that the space inside the lock is occupied, the processing difficulty of the lock shell is increased, the integrity of the lock is poor, and the whole structure is unstable. After long-term use, the clutch structure is easy to block, so that the lock cylinder is in idle running failure.

Disclosure of Invention

An object of the application is to provide an idle running lock core and tool to lock for solve the not enough that exists among the prior art.

In order to achieve the above object, in a first aspect, the present application provides an idle rotation lock core applied to a lock, where the lock includes a dial wheel for opening and closing a lock, and the idle rotation lock core includes a lock cylinder mechanism and an idle rotation sleeve;

the idle sleeve is sleeved outside the lock cylinder mechanism and is used for being connected with the shifting wheel;

the liner locking mechanism comprises a liner assembly and a clutch assembly, a key channel is arranged in the liner assembly, the clutch assembly comprises a first clutch piece and a second clutch piece which are arranged in the liner assembly, the second clutch piece is arranged on the first clutch piece, the second clutch piece is in linkage fit with the first clutch piece, the first clutch piece is used for being in clutch fit with the idle sleeve, and the second clutch piece is used for being in clutch fit with the liner assembly;

when a correct key is not inserted into the key channel, the lock cylinder mechanism can rotate relative to the idle rotation sleeve; when a correct key is inserted, the second clutch piece is combined with the liner assembly, and simultaneously, the first clutch piece is driven to be combined with the idle rotation sleeve so as to limit the relative rotation between the lock liner mechanism and the idle rotation sleeve.

With reference to the first aspect, in a possible implementation manner, a clutch tooth is provided on the first clutch member, a first clutch groove adapted to the clutch tooth is provided on an inner wall surface of the idle rotation sleeve, and the clutch tooth and the first clutch groove are matched to limit relative rotation between the cylinder lock mechanism and the idle rotation sleeve.

With reference to the first aspect, in one possible implementation manner, a first keyhole is formed in the first clutch member, and the first keyhole is communicated with the key channel.

With reference to the first aspect, in one possible embodiment, the second clutch is snap-engaged with the first clutch.

With reference to the first aspect, in a possible implementation manner, two latches are arranged on the first clutch member, the two latches are arranged in a mirror image manner, through slots are arranged on two sides of the second clutch member along the length direction, and the two latches are respectively clamped in the corresponding slots.

With reference to the first aspect, in a possible implementation manner, a containing hole for containing the second clutch member is formed in the container assembly, the clutch assembly further includes an unlocking spring, one end of the unlocking spring abuts against one side, far away from the first clutch member, of the second clutch member, the other end of the unlocking spring abuts against an inner wall surface of the idle rotation sleeve, and the unlocking spring is used for driving the second clutch member to move towards the inside of the container assembly.

With reference to the first aspect, in one possible implementation manner, the liner body assembly includes a liner shell and a blade set disposed in the liner shell, the blade set and the liner shell form the key passage in front, and the second clutch member is in clutch engagement with the blade set.

With reference to the first aspect, in a possible implementation manner, the blade group includes a preset number of sub-blades, and a bevel is provided on a side of each sub-blade facing the second clutch;

when a correct key is not inserted into the key channel, the grooves of at least two sub-blades in the blade group are staggered; when a correct key is inserted, the grooves of a preset number of the sub-blades are aligned, and a second clutch groove which is in clutch fit with the second clutch member is formed.

With reference to the first aspect, in one possible embodiment, the second clutch member is provided with a wedge surface that engages with the second clutch groove.

To achieve the above object, in a second aspect, the present application further provides a lock including the idle lock cylinder as provided in the above first aspect.

Compare in prior art, the beneficial effect of this application:

the application provides a pair of idle running lock core and tool to lock, wherein, outside the lock courage mechanism was located to idle running lock core cavity commentaries on classics sleeve cover, lock courage mechanism included courage body subassembly and separation and reunion subassembly, and separation and reunion subassembly is including setting up first separation and reunion piece and the second separation and reunion piece in courage body subassembly, and the second separation and reunion piece sets up on first separation and reunion piece. The idle lock cylinder provided by the application is in linkage fit with the first clutch piece through the second clutch piece; the first clutch piece is in clutch fit with the idle sleeve, and the second clutch piece is in clutch fit with the liner assembly; when a correct key is not inserted into the key channel, the lock cylinder mechanism can rotate relative to the idle rotation sleeve; when a correct key is inserted, the second clutch piece is combined with the liner body assembly, and simultaneously the first clutch piece is driven to be combined with the idle rotation sleeve so as to limit the relative rotation between the lock liner mechanism and the idle rotation sleeve. From this, the idle running lock core that this application provided combines and sets up in the idle running sleeve with clutch assembly and courage body subassembly, and the realization of whole clutch assembly function all accomplishes in the idle running lock core, need not the lock shell with the help of the tool to lock, and then has simplified the process sequence of lock shell, reduces the processing degree of difficulty of lock shell, and it is more convenient in the equipment to whole idle running lock core overall structure is compacter, and job stabilization is reliable, long service life.

Drawings

Fig. 1 is a schematic perspective view illustrating a lock according to an embodiment of the present disclosure;

FIG. 2 shows an exploded view of the latch of FIG. 1;

FIG. 3 shows an exploded schematic view of the lost motion cylinder of the lock shown in FIG. 2;

FIG. 4 illustrates a schematic perspective view of a liner shell of the lost motion lock cylinder illustrated in FIG. 3;

FIG. 5 shows a perspective view of a sub-blade of the set of blades in the lost motion lock cylinder shown in FIG. 3;

FIG. 6 shows a perspective view of the clutch assembly of the lost motion cylinder of FIG. 3;

FIG. 7 is a schematic diagram illustrating a state in which a first clutch member is disengaged from an idle sleeve in an idle lock cylinder provided by an embodiment of the present application;

fig. 8 is a schematic view illustrating a state where the second engaging groove is not formed in the blade group according to the embodiment of the present application;

FIG. 9 is a schematic view of the idle lock cylinder of FIG. 7 with the first clutch engaged with the idle sleeve;

fig. 10 is a schematic view showing a state where the vane group shown in fig. 8 forms the second engaging groove.

Description of the main element symbols:

100. an idle lock cylinder; 101. a key channel; 110. a cylinder locking mechanism; 111. a bladder assembly; 1110. a liner shell; 1110a, through holes; 1110b, a containing hole; 1110c, in the first limiting groove; 1110d and a third limit groove; 1111. a blade group; 1111a and a second clutch groove; 1112. a sub-leaf blade; 1112a, a first keyhole; 1112b, a first tooth; 1112c, beveling; 1113. a first return spring; 112. a clutch assembly; 1120. a first clutch member; 1120a, clutch teeth; 1120b, a second key hole; 1120c, a latch; 1121. a second clutch member; 1121a, wedge faces; 1121b, positioning grooves; 1121c, card slot; 1122. an unlocking spring; 120. an idle sleeve; 121. a first clutch groove; 200. a lock case; 210. a second limit groove; 300. a thumb wheel; 400. a limiting mechanism; 410. a second return spring; 420. and a limiting pin.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Example one

Referring to fig. 1 and 2, the present embodiment provides an idle lock core 100, which is applied to a lock and can prevent violent unlocking.

The lockset comprises a lock shell 200, a thumb wheel 300 and the idle rotation lock cylinder 100 provided by the embodiment, wherein the thumb wheel 300 is rotatably arranged on the lock shell 200, and unlocking and locking can be realized by driving the thumb wheel 300 to rotate.

The idle lock cylinder 100 is rotatably disposed in the lock case 200, and the idle lock cylinder 100 is connected to the thumb wheel 300. Therefore, by inserting a correct key into the idle lock cylinder 100, and by turning the key, the idle lock cylinder 100 drives the thumb wheel 300 to rotate, so as to achieve the purpose of unlocking or locking.

Referring to fig. 2, 3 and 7, the idle lock core 100 includes a cylinder mechanism 110 and an idle sleeve 120, the idle sleeve 120 is sleeved outside the cylinder mechanism 110, the idle sleeve 120 is used for being connected with a thumb wheel 300, the cylinder mechanism 110 can rotate relative to the idle sleeve 120, and the idle sleeve 120 can rotate relative to the lock case 200.

The cylinder mechanism 110 includes a cylinder member 111 and a clutch member 112, wherein a key passage 101 is formed in the cylinder member 111, and the clutch member 112 is disposed in the cylinder member 111.

Referring to fig. 3, 4, 5 and 7, in particular, the container body assembly 111 includes a container shell 1110 and a blade set 1111 disposed in the container shell 1110, wherein the blade set 1111 includes a predetermined number of sub-blades 1112 and a first return spring 1113 disposed on each sub-blade 1112, each sub-blade 1112 is provided with a first keyhole 1112a allowing a key to pass through along a thickness direction, and a key channel 101 allowing the key to be inserted is formed between the first keyholes 1112a of all the sub-blades 1112 in the blade set 1111 and the container shell 1110 (as shown in fig. 7).

Further, at least one first protrusion 1112b is disposed on an inner wall of the first key hole 1112a of each sub-blade 1112, wherein the first protrusion 1112b corresponds to the unlocking pattern of the correct key. Therefore, it can be understood that, when the correct key is inserted into the key channel 101, all the sub-blades 1112 will overcome the elastic force of the first return spring 1113, so that the first teeth 1112b on all the sub-blades 1112 enter the preset position of the unlocking line of the correct key, and at this time, the clutch assembly 112 can make the cylinder mechanism 110 and the idle rotation sleeve 120 linked, that is, the cylinder mechanism 110 can drive the idle rotation sleeve 120 to rotate together.

Referring to fig. 3, 4 and 6, the clutch assembly 112 includes a first clutch member 1120, a second clutch member 1121 and an unlocking spring 1122 disposed in the container shell 1110. The first clutch 1120 is inserted into the bladder 1110 and is located in the middle of the vane group 1111. The second clutch 1121 is disposed at one end of the first clutch 1120, the unlocking spring 1122 is disposed at a side of the second clutch 1121 away from the first clutch 1120, and the unlocking spring 1122 can drive the first clutch 1120 to move along a radial direction of the container shell 1110.

In this embodiment, the second clutch 1121 is adapted to be in interlocking engagement with the first clutch 1120, the first clutch 1120 is adapted to be in clutching engagement with the lost motion sleeve 120, and the second clutch 1121 is adapted to be in clutching engagement with the blade assembly 1111. It should be noted that the above-defined clutch engagement includes two states of disengagement and engagement.

Optionally, in this embodiment, the first clutch 1120 is in the shape of a plate, and the second clutch 1121 is in the shape of an elongated bar.

Further, the first clutch member 1120 is provided with clutch teeth 1120a, the bladder shell 1110 is provided with through holes 1110a allowing the protruding teeth to protrude, and the inner wall surface of the idle rotation sleeve 120 is provided with first clutch grooves 121 adapted to the clutch teeth 1120 a. When the clutch teeth 1120a are engaged with the first clutch grooves 121, the relative rotation between the cylinder mechanism 110 and the idle sleeve 120 is restricted.

The first clutch member 1120 is provided with a second key hole 1120b in the thickness direction, the second key hole 1120b communicating with the key channel 101, and the second key hole 1120b allowing a proper key to pass therethrough.

Therefore, it can be understood that the second key hole 1120b of the first clutch 1120 and the first key hole 1112a of the sub-blade 1112 both form a part of the key channel 101, and further the first clutch 1120 can be equivalent to one sub-blade 1112, so that the arrangement of the first clutch 1120 in this embodiment is equivalent to adding one more sub-blade 1112 to the existing number of sub-blades 1112, thereby increasing the number of complex designs of the key and further improving the reliability of the lock.

Optionally, the inner wall surface of the second key hole 1120b is further provided with a second convex tooth (not shown) adapted to the unlocking line of the correct key.

Referring to fig. 4, 6 and 7, a receiving hole 1110b for receiving the second clutch member 1121 is disposed on a side of the container shell 1110 facing away from the through hole 1110a, one end of the unlocking spring 1122 abuts against a side of the second clutch member 1121 away from the first clutch member 1120, and the other end abuts against an inner wall surface of the idle rotation sleeve 120. When a proper key is not inserted into the key passage 101, the unlocking spring 1122 is always compressed, and therefore the unlocking spring 1122 tends to drive the second clutch member 1121 to move toward the inside of the container shell 1110.

Furthermore, the number of the unlocking springs 1122 is two, the two unlocking springs 1122 are distributed along the length direction of the second clutch member 1121, the second clutch member 1121 is provided with a positioning slot 1121b corresponding to the unlocking springs 1122, and then one end of the unlocking springs 1122 is located in the positioning slot 1121b, and the other end of the unlocking springs 1122 abuts against the inner wall of the idle rotation sleeve 120. Therefore, the positioning slot 1121b can position the unlocking spring 1122 to prevent the unlocking spring 1122 from disengaging from the second clutch member 1121.

Optionally, the unlocking spring 1122 is welded to the second clutch 1121 to provide a more secure connection.

Referring to fig. 5, 8 and 10, a bevel 1112c is provided on a side of each sub-blade 1112 in the blade group 1111 facing the second clutch member 1121, and when a correct key is not inserted into the key channel 101, the bevels 1112c of at least two sub-blades 1112 in the blade group 1111 are dislocated; when the correct key is inserted, the grooves 1112c of all the sub-blades 1112 in the blade group 1111 are aligned, and the aligned grooves 1112c form the second clutch groove 1111a which is in clutch engagement with the second clutch member 1121.

Referring to fig. 1 to fig. 10, in the present embodiment, the clutch assembly 112 operates according to the following principle:

referring to fig. 3, 7 and 8, when the correct key is not inserted into the key channel 101 (including both the case of no key and the case of incorrect key), the grooves 1112c of at least two sub-blades 1112 in the blade group 1111 are misaligned, and thus the second clutch groove 1111a cannot be formed. At this time, the second clutch member 1121 is separated from the blade group 1111, the blade group 1111 pushes the second clutch member 1121, and the clutch teeth 1120a of the first clutch member 1120 are accommodated in the container shell 1110, so that the first clutch member 1120 is separated from the idle rotation sleeve 120, and the bladder locking mechanism 110 can rotate relative to the idle rotation sleeve 120, that is, the bladder locking mechanism 110 does not rotate the idle rotation sleeve 120 by idle rotation.

Referring to fig. 3, 4, 9 and 10, when a correct key is inserted into the key channel 101, all the sub-blades 1112 in the blade group 1111 overcome the urging force of the first return spring 1113 to align all the bevels 1112c to form the second clutch groove 1111a, and the second clutch member 1121 is driven by the unlocking spring 1122 to be caught in the second clutch groove 1111a to be coupled with the blade group 1111. The second clutch part 1121 drives the first clutch part 1120 to move in a direction away from the unlocking spring 1122 along the radial direction of the core casing 1110, so that the clutch teeth 1120a extend out of the through hole 1110a and are inserted into the first clutch groove 121 on the idle rotation sleeve 120, and thus the first clutch part 1120 is combined with the idle rotation sleeve 120 to limit the relative rotation between the core locking mechanism 110 and the idle rotation sleeve 120, and the core locking mechanism 110 can drive the idle rotation sleeve 120 to rotate together.

When the correct key is inserted into the key channel 101, all the sub-blades 1112 in the blade group 1111 are reset by the first return spring 1113, and the second clutch member 1121 is ejected out of the second clutch groove 1111a, all returning to the state where the correct key is not inserted into the key channel 101.

Referring to fig. 6, in the present embodiment, the second clutch member 1121 is engaged with the first clutch member 1120 in a clamping manner. Specifically, two latch teeth 1120c are arranged on the first clutch member 1120, the two latch teeth 1120c are arranged in a mirror image manner, and through slots 1121c are arranged on two sides of the second clutch member 1121 along the length direction, wherein the two latch teeth 1120c are respectively clamped in the corresponding slots 1121c, so that the second clutch member 1121 is in clamping fit with the first clutch member 1120.

As can be appreciated, by the snap-fit engagement of the second clutch member 1121 with the first clutch member 1120, on one hand, the detachable connection of the second clutch member 1121 with the first clutch member 1120 can be realized, which facilitates the independent processing of the first clutch member 1120 and the second clutch member 1121, and ensures the processing accuracy; on the other hand, fine adjustment of the position of the second clutch member 1121 after installation is facilitated, ensuring the fitting accuracy.

Optionally, a side of second clutch member 1121 adjacent to second clutch slot 1111a is provided with a wedge surface 1121a to facilitate smooth engagement or ejection of second clutch member 1121 into or out of second clutch slot 1111 a.

Example two

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the present embodiment provides a lock. The lockset comprises a lock shell 200, a thumb wheel 300, a limiting mechanism 400 and the idle rotation lock cylinder 100.

The lock shell 200 is provided with an accommodating cavity for accommodating the idle lock cylinder 100, the thumb wheel 300 is rotatably arranged on the lock shell 200, the thumb wheel 300 is connected with the idle sleeve 120 of the idle lock cylinder 100, and when the cylinder mechanism 110 drives the idle sleeve 120 to rotate, the idle sleeve 120 drives the thumb wheel 300 to rotate so as to achieve the purposes of unlocking and locking.

The limiting mechanism 400 is arranged in the lock case 200, and the limiting mechanism 400 is used for limiting the axial movement of the idle rotation lock cylinder 100 so as to prevent the idle rotation lock cylinder 100 from being separated from the lock case 200.

Specifically, the limiting mechanism 400 includes a second return spring 410 and a limiting pin 420, the second return spring 410 is disposed in the lock housing 200, and the limiting pin 420 is disposed on one side of the second return spring 410 close to the bladder 1110. The outer peripheral surface of the bladder shell 1110 is provided with a first limit groove corresponding to the limit pin 420, and the limit pin 420 is driven by the second return spring 410 to be inserted into the first limit groove 1110 c. It will be appreciated that a portion of the first limit pin 420 is located in the limit slot and another portion is located in the lock housing 200, thereby limiting axial movement of the lost motion lock cylinder 100.

Further, in this embodiment, the limiting mechanism 400 further includes a limiting clamp spring (not shown), the outer peripheral surface of the liner shell 1110 is provided with a second limiting groove 210 corresponding to the limiting clamp spring, the lock case 200 is provided with a third limiting groove 1110d, the limiting clamp spring is clamped in the second limiting groove 210 through the third limiting groove 1110d on the lock case 200, wherein one part of the limiting clamp spring is located in the second limiting groove 210, and the other part of the limiting clamp spring is located in the third limiting groove 1110d, so as to achieve the purpose of limiting the axial movement of the idling lock cylinder 100.

It will be appreciated that the limiting mechanism 400 only limits the axial movement of the lost motion lock cylinder 100 and does not limit the rotation of the lost motion lock cylinder 100 about its axis.

Compare in prior art, the tool to lock that this embodiment provided has following advantage:

(1) the idle rotation lock cylinder 100 combines the clutch assembly 112 and the liner assembly 111 and is arranged in the idle rotation sleeve 120, the function of the whole clutch assembly 112 is realized in the idle rotation lock cylinder 100, the lock shell 200 is not required to be matched, the structure is simpler, the processing sequence of the lock shell 200 is further simplified, the processing difficulty of the lock shell 200 is reduced, and the whole idle rotation lock cylinder 100 is more compact in whole structure, stable and reliable in work and long in service life. (2) Only the limiting mechanism 400 is matched between the idle rotation lock cylinder 100 and the lock shell 200, so that the idle rotation lock cylinder 100 and the lock shell 200 are convenient to assemble and disassemble. (3) Through the double-limiting mode formed by the limiting pin 420 and the limiting clamp spring, the axial stress of the idle lock cylinder 100 is increased, the explosion-proof performance is improved, and the idle lock cylinder is safer and more reliable.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. An idle rotation lock core is applied to a lock, and the lock comprises a thumb wheel for opening and closing a lock, and is characterized in that the idle rotation lock core comprises a lock cylinder mechanism and an idle rotation sleeve;

the idle sleeve is sleeved outside the lock cylinder mechanism and is used for being connected with the shifting wheel;

the liner locking mechanism comprises a liner assembly and a clutch assembly, a key channel is arranged in the liner assembly, the clutch assembly comprises a first clutch piece and a second clutch piece which are arranged in the liner assembly, the second clutch piece is arranged on the first clutch piece, the second clutch piece is in linkage fit with the first clutch piece, the first clutch piece is used for being in clutch fit with the idle sleeve, and the second clutch piece is used for being in clutch fit with the liner assembly;

when a correct key is not inserted into the key channel, the lock cylinder mechanism can rotate relative to the idle rotation sleeve; when a correct key is inserted, the second clutch piece is combined with the liner assembly, and simultaneously, the first clutch piece is driven to be combined with the idle rotation sleeve so as to limit the relative rotation between the lock liner mechanism and the idle rotation sleeve.

2. The idle lock core according to claim 1, wherein the first clutch member is provided with clutch teeth, the inner wall surface of the idle sleeve is provided with a first clutch groove matched with the clutch teeth, and the clutch teeth and the first clutch groove are matched to limit relative rotation between the cylinder mechanism and the idle sleeve.

3. The lost motion lock cylinder of claim 1 wherein the first clutch member has a first keyway disposed therein, the first keyway being in communication with the keyway.

4. The idle lock cylinder of claim 1, wherein said second clutch is snap-engaged with said first clutch.

5. The idle lock cylinder according to claim 4, wherein the first clutch member is provided with two latch teeth, the two latch teeth are arranged in a mirror image manner, and two sides of the second clutch member are provided with through slots along the length direction, wherein the two latch teeth are respectively clamped in the corresponding slots.

6. The idle lock cylinder according to claim 1, wherein a containing hole for containing the second clutch member is formed in the cylinder assembly, the clutch assembly further comprises an unlocking spring, one end of the unlocking spring is abutted against one side of the second clutch member, which is far away from the first clutch member, and the other end of the unlocking spring is abutted against the inner wall surface of the idle sleeve, and the unlocking spring is used for driving the second clutch member to move towards the inside of the cylinder assembly.

7. The idle lock cylinder according to claim 1, wherein the cylinder assembly includes a cylinder housing and a blade assembly disposed in the cylinder housing, the blade assembly and the cylinder housing form the keyway in front thereof, and the second clutch member is in clutch engagement with the blade assembly.

8. The idle lock cylinder of claim 7 wherein said set of blades includes a predetermined number of sub-blades, each of said sub-blades having a bevel on a side facing said second clutch;

when a correct key is not inserted into the key channel, the grooves of at least two sub-blades in the blade group are staggered; when a correct key is inserted, the grooves of a preset number of the sub-blades are aligned, and a second clutch groove which is in clutch fit with the second clutch member is formed.

9. The idle lock cylinder of claim 8 wherein said second clutch member is provided with a wedge surface that engages said second clutch slot.

10. A lock, characterized in that it comprises a lost motion cylinder according to any one of claims 1-9.

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