Lock

Abstract

The utility model discloses a lockset, which comprises a first lock body structure, a second lock body structure and a third lock body structure, the second lock body is mounted on the inner side of the door body; the linkage structure comprises a first linkage assembly and a second linkage assembly, one end of the first linkage assembly is connected to the first lock body structure, the other end of the first linkage assembly is connected to the second lock body structure, and the second linkage assembly is arranged outside the first linkage assembly in a sleeving mode and matched with a spring bolt assembly of the lock in a linkage mode; the clutch structure is arranged in the second lock body structure, and the clutch structure has a gear engaging state and a gear retreating state; in the gear engaging state, the clutch structure performs gear engaging on the linkage structure, and the first linkage assembly can be in linkage with the second linkage assembly. In the reverse gear state, the clutch structure conducts reverse gear on the linkage structure, and the first linkage assembly and the second linkage assembly are in the relative dissociation state. Through the arrangement, the problem that the safety and the anti-theft performance are not high due to the fact that a clutch component in an existing lock is arranged in the lock or on an outer door panel is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, and particularly relates to a lock. Background Art

[0002] At present, some locks on the market are internally provided with a clutch device. The clutch device is one of the most critical components in the lock. The clutch device can realize the front and rear handle disengagement, the handle rotates idly and cannot unlock, or realize the linkage with the lock core to unlock.

[0003] In the existing related technologies, the clutch device is generally internally provided in the lock, or pre - installed on the outer door panel. When the clutch device is installed in the lock or on the outer door panel, people with ulterior motives can easily unlock the lock illegally outside the door, resulting in low security and anti - theft performance of the lock. Summary of the Utility Model

[0004] The utility model mainly provides a lock to solve the problem that the safety and anti - theft performance are not high due to the clutch component of the existing lock being installed in the lock or on the outer door panel.

[0005] To achieve the above object, a lock proposed by the utility model includes a first lock body structure, a second lock body structure, a linkage structure, and a clutch structure; wherein,

[0006] The first lock body structure is installed on the outer side of the door body, and the second lock body is installed on the inner side of the door body;

[0007] The linkage structure includes a first linkage component and a second linkage component. One end of the first linkage component is connected to the first lock body structure, and the other end is connected to the second lock body structure. The second linkage component is sleeved outside the first linkage component and is in linkage cooperation with the lock tongue component of the lock;

[0008] The clutch structure is arranged in the second lock body structure, and the clutch structure has a gear - engaged state and a gear - disengaged state; in the gear - engaged state, the clutch structure gears the linkage structure, and the first linkage component can drive the second linkage component to unlock or lock; in the gear - disengaged state, the clutch structure disengages the linkage structure, and the first linkage component and the second linkage component are in a relatively free state.

[0009] In some embodiments of the utility model, the first linkage component is provided with a first linkage part, the second linkage component is provided with a second linkage part, the clutch structure includes a first clutch part, the first linkage part and the second linkage part are both correspondingly arranged with the first clutch part, and the first clutch part can extend into or disengage from the first linkage part and the second linkage part, so that the linkage structure is in the gear - engaged state or the gear - disengaged state.

[0010] In some embodiments of the present utility model, both the first linkage part and the second linkage part extend along the length direction of the first linkage assembly.

[0011] In some embodiments of the present utility model, the clutch structure further includes a first driving member and a pushing member. The pushing member is in transmission cooperation with the first driving member. The pushing member has a pushing part, and the pushing part has a plurality of inclined surfaces. The pushing part is in sliding abutting cooperation with one end of the first clutch member through the plurality of inclined surfaces to drive the first clutch member to move.

[0012] In some embodiments of the present utility model, the second lock body structure includes a second handle assembly and a second panel assembly. The second panel assembly is connected to the door body. The second handle assembly is rotatably connected to the second panel assembly. The clutch structure is arranged in the second handle assembly. The second linkage assembly is connected to the second handle assembly and can rotate synchronously with the second handle assembly. In the gear engagement state, the first linkage assembly drives the second linkage assembly through the second handle assembly.

[0013] In some embodiments of the present utility model, the clutch structure includes a second driving member and a second clutch member. The second clutch member is connected to the second driving member. A buckle groove is arranged in the second clutch member. A buckling part is arranged on the first linkage assembly. The second driving member is used to drive the second clutch member to move in a direction close to or away from the first linkage assembly;

[0014] In the gear engagement state, the buckling part is in buckling cooperation with the buckle groove. The second clutch member can rotate synchronously with the second handle assembly. The first linkage assembly drives the second clutch member to rotate.

[0015] In some embodiments of the present utility model, the first linkage assembly includes a first rotating member and a second rotating member. One end of the first rotating member is connected to the first lock body structure, and the other end is in linkage cooperation with the second rotating member. The buckling part is formed at one end of the second rotating member away from the first rotating member.

[0016] In some embodiments of the present utility model, the first linkage assembly further includes an elastic member. One end of the elastic member abuts against the first rotating member, and the other end abuts against the second rotating member;

[0017] A first stop part is arranged on the outer peripheral wall of the second rotating member, and a second stop part is arranged on the second handle assembly. Under the action of the elastic member, the first stop part and the second stop part are in stop cooperation.

[0018] In some embodiments of the present utility model, the first lock body structure includes a first handle assembly and a first panel assembly. The first panel assembly is connected to the outer side of the door body, and the first handle assembly is rotatably connected to the first panel assembly;

[0019] The lock further includes an emergency unlocking assembly disposed within the first handle assembly. The emergency unlocking assembly has an engaged state and a disengaged state. In the engaged state, the emergency unlocking assembly can drive the second linkage assembly to rotate synchronously to perform unlocking or locking; in the disengaged state, the emergency unlocking assembly and the second linkage assembly are in a relatively free state.

[0020] In some embodiments of the present utility model, the emergency unlocking assembly is an electronic emergency unlocking lock core; or, the emergency unlocking assembly is a mechanical emergency unlocking lock core.

[0021] The beneficial effects of the present utility model are as follows: Different from the prior art, the lock disclosed in the present utility model installs the clutch structure within the second lock body structure, that is, the clutch structure is installed on the inner side of the door body. With such a setting, through the first lock body structure and the door body, double protection can be achieved, effectively preventing illegal personnel from cracking the lock outside the door. Comparatively speaking, the lock is made more safe and reliable, and the safety performance and anti-theft performance of the lock are well improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the lock of the present utility model from one perspective;

[0024] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the lock of the present utility model from another perspective;

[0025] Figure 3 It is a schematic diagram of the sectional structure of an embodiment of the lock of the present utility model;

[0026] Figure 4 It is a schematic diagram of the sectional structure of an embodiment of the first lock body structure of the present utility model;

[0027] Figure 5 It is a schematic diagram of the sectional structure of an embodiment of the second lock body structure of the present utility model;

[0028] Figure 6 Explosion structure schematic diagram of an embodiment of the linkage structure of the present utility model;

[0029] Figure 7 Cross-sectional structure schematic diagram of another embodiment of the lock of the present utility model;

[0030] Figure 8 Cross-sectional structure schematic diagram of another embodiment of the first lock body structure of the present utility model;

[0031] Figure 9 Cross-sectional structure schematic diagram of another embodiment of the second lock body structure of the present utility model;

[0032] Figure 10 Explosion structure schematic diagram of another embodiment of the linkage structure of the present utility model.

[0033] Explanation of the reference numerals in the drawings:

[0034] 100, lock; 1, first lock body structure; 11, first handle assembly; 111, first handle; 112, first cover; 113, installation cavity; 12, first panel assembly; 2, second lock body structure; 21, second handle assembly; 211, second handle; 2111, square groove; 2112, second stop portion; 212, second cover; 213, accommodation cavity; 22, second panel assembly; 3, linkage structure; 31, first linkage assembly; 311, round shaft; 312, first linkage portion; 313, first rotating member; 3131, limit groove; 314, second rotating member; 3141, buckling portion; 3142, limit rib; 3143, first stop portion; 315, elastic member; 32, second linkage assembly; 321, square shaft; 322, second linkage portion; 323, connecting block; 4, clutch structure; 41, first driving member; 42, pushing member; 43, first clutch member; 44, second driving member; 45, second clutch member; 451, buckling groove; 5, emergency unlocking assembly.

[0035] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0037] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" can explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0039] A lock 100 proposed by the present utility model, referring to Figures 1 to 6 , the lock 100 includes a first lock body structure 1, a second lock body structure 2, a linkage structure 3, and a clutch structure 4. Among them, the first lock body structure 1 is installed on the outer side of the door body, and the second lock body is installed on the inner side of the door body. The linkage structure 3 includes a first linkage component 31 and a second linkage component 32. One end of the first linkage component 31 is connected to the first lock body structure 1, and the other end is connected to the second lock body structure 2. The second linkage component 32 is sleeved outside the first linkage component 31 and is in linkage cooperation with the lock tongue component (not shown in the figure) of the lock 100.

[0040] The clutch structure 4 is arranged inside the second lock body structure 2, and the clutch structure 4 has a gear engagement state and a gear disengaged state; in the gear engagement state, the clutch structure 4 engages the linkage structure 3, and the first linkage component 31 can drive the second linkage component 32 to unlock or lock; in the gear disengaged state, the clutch structure 4 disengages the linkage structure 3, and the first linkage component 31 and the second linkage component 32 are in a relatively free state.

[0041] Based on the above scheme, by installing the clutch structure 4 inside the second lock body structure 2, that is, the clutch structure 4 is installed on the inner side of the door body, double protection can be achieved through the first lock body structure 1 and the door body, effectively preventing illegal personnel from cracking the lock outside the door. Comparatively speaking, the lock 100 is made more safe and reliable, and the safety performance and anti-theft performance of the lock 100 are well improved.

[0042] The specific structure of the locking tongue assembly is not shown in the drawings of this embodiment. The locking tongue assembly can select a suitable locking tongue assembly in the prior art according to actual needs, and will not be elaborated in detail here.

[0043] The first lock body structure 1 includes a first handle assembly 11 and a first panel assembly 12. The first panel assembly 12 is fixedly installed on the outer side of the door body, and the first handle assembly 11 is rotatably connected to the first panel assembly 12. The second lock body structure 2 includes a second handle assembly 21 and a second panel assembly 22. The second panel assembly 22 is fixedly installed on the inner side of the door body, and the second handle assembly 21 is rotatably connected to the second panel assembly 22. One end of the first linkage assembly 31 is connected to the first handle assembly 11, and the other end is connected to the second handle assembly 21.

[0044] In the engaged state, rotate the first handle assembly 11 to drive the first linkage assembly 31 to rotate. Under the action of the clutch structure 4, the first linkage assembly 31 drives the second linkage assembly 32 to rotate, so as to realize the linkage movement of the locking tongue assembly to achieve unlocking or locking. In the disengaged state, rotating the first handle assembly 11 can drive the first linkage assembly 31 to rotate, and the linkage between the first linkage assembly 31 and the second linkage assembly 32 is disconnected, and the locking tongue assembly cannot be locked or unlocked by linkage.

[0045] Specifically, the first handle assembly 11 may include a first handle 111 and a first cover 112. An installation cavity 113 is provided inside the first handle 111, and the installation cavity 113 can be used for installing components such as integrated electronic components or lock cores. The first cover 112 is detachably connected to the first handle 111, such as by snap connection, screw fixed connection, glue bonding, etc. The first cover 112 also covers the open end of the installation cavity 113 to form a complete body of the first lock body structure 1.

[0046] Among them, a fingerprint unlocking disk, a keypad and other control modules can also be integrated on the first cover 112 for users to perform intelligent unlocking and locking, improving the convenience of operation.

[0047] The second handle assembly 21 may also include a second handle 211 and a second cover 212. A receiving cavity 213 is provided inside the second handle 211, and the receiving cavity 213 can be used for installing a power supply module and a circuit board. The receiving cavity 213 has an open end, and the first cover 112 is detachably connected to the second handle 211, such as by snap connection, screw fixed connection, glue bonding, etc. The second cover 212 also covers the open end of the receiving cavity 213 to form a complete body of the second lock body structure 2.

[0048] The first panel assembly 12 and the second panel assembly 22 can select common panel assemblies on the market and will not be described in detail here.

[0049] Continue to refer toFigures 1 to 6 , the first linkage assembly 31 is provided with a first linkage portion 312, the second linkage assembly 32 is provided with a second linkage portion 322, the clutch structure 4 includes a first clutch member 43, the first linkage portion 312 and the second linkage portion 322 are both correspondingly arranged with the first clutch member 43, and the first clutch member 43 can extend into or disengage from the first linkage portion 312 and the second linkage portion 322, so that the linkage structure 3 is in the gear engaged state or the gear disengaged state.

[0050] With such a setting, under the action of the first clutch member 43, the first linkage portion 312 and the second linkage portion 322 are linked, so that the first linkage assembly 31 can be linked with the second linkage assembly 32. The user can drive the first linkage assembly 31 to rotate by operating the first handle assembly 11, thereby linking the second linkage assembly 32 to drive the lock tongue assembly to lock and unlock.

[0051] In some embodiments, the first linkage assembly 31 includes a circular shaft 311. One end of the circular shaft 311 is rigidly connected to the first handle 111, and the other end is rotatably connected to the second handle 211. The second linkage assembly 32 includes a square shaft 321. One end of the square shaft 321 is arranged adjacent to the first handle 111, and the other end is connected to the second handle 211. A through hole is provided in the square shaft 321, and the circular shaft 311 is rotatably arranged in the through hole.

[0052] A plugging groove or a plugging hole is formed in the outer peripheral wall of the circular shaft 311 to form the first linkage portion 312. In the application embodiments, taking the plugging groove as an example to form the first linkage portion 312 for illustration, this is only for example and does not limit the first linkage portion 312. A clamping groove or a clamping hole is formed in the outer peripheral wall of the square shaft 321 to form the second linkage portion 322. In the application embodiments, taking the clamping hole as an example to form the second linkage portion 322 for illustration, this is only for example and does not limit the second linkage portion 322.

[0053] The notch of the plugging groove and the opening of the clamping hole are correspondingly and communicatively arranged and both correspond to the first clutch member 43. The first clutch member 43 can extend into the notch of the plugging groove and the opening of the clamping hole, or withdraw from the notch of the plugging groove and the opening of the clamping hole. In the gear engaged state, the first clutch member 43 remains extending into the notch of the plugging groove and the opening of the clamping hole. Rotate the first handle 111 to drive the circular shaft 311 to rotate. The circular shaft 311 rotates and drives the square shaft 321 to rotate through the first clutch member 43, so that the square shaft 321 drives the lock tongue assembly to move to realize locking and unlocking.

[0054] It can be understood that the first linkage portion 312 and the second linkage portion 322 can also be other mechanism members having a clamping and cooperating relationship with the first clutch member 43, as long as it can be realized that the first linkage assembly 31 drives the second linkage assembly 32 to rotate through the first clutch member 43, and no specific limitation is made here.

[0055] Continuing to refer to Figures 1 to 6 , both the first linkage part 312 and the second linkage part 322 are arranged to extend along the length direction of the first linkage assembly 31. With such an arrangement, when changing the distance between the overall first lock body structure 1 and the overall second lock body structure 2 to adapt to different door thicknesses, within a reasonable range, it can be ensured that the first clutch member 43 maintains a mating relationship with the first linkage part 312 and the second linkage part 322, guaranteeing the linkage reliability between the first linkage assembly and the second linkage assembly 32, ensuring the normal unlocking and locking of the lock 100, and thereby better improving the applicability and practicality of the lock 100.

[0056] For example, when the first linkage part 312 is a plug-in groove, the plug-in groove is arranged in a long strip shape and extends along the axial direction of the circular shaft 311; when the second linkage part 322 is a clamping hole, the clamping hole is arranged in a long strip shape and extends along the axial direction of the circular shaft 311.

[0057] Continuing to refer to Figures 1 to 6 , in some embodiments, the clutch structure 4 can be arranged within the second panel. The clutch structure 4 further includes a first driving member 41 and a pushing member 42. The pushing member 42 is in transmission cooperation with the first driving member 41. The pushing member 42 has a pushing part, and the pushing part has a plurality of inclined surfaces. The pushing part is in sliding abutting cooperation with one end of the first clutch member 43 through the plurality of inclined surfaces to drive the first clutch member 43 to move. Among them, the plurality of inclined surfaces of the pushing part are arranged along the rotation direction of the first linkage assembly 31.

[0058] With such an arrangement, the first driving member 41 drives the pushing member 42 to move, so that the pushing member 42 can push the first clutch member 43 to move, facilitating it to extend into or withdraw from the notch of the plug-in groove and the opening of the clamping hole, so as to realize shifting gears or declutching for the linkage structure 3. The structure is simple and the driving method is reliable, which helps to improve the stability of shifting gears or declutching for the linkage structure 3.

[0059] Among them, during the rotation of the first linkage assembly 31, the first clutch member 43 rotates with the first linkage assembly 31 by a certain amplitude, and during the rotation of the first clutch member 43, it always remains in contact with the pushing part. The state of the first clutch member 43 extending into the notch of the plug-in groove and the opening of the clamping hole is ensured through the plurality of inclined surfaces of the pushing part.

[0060] The pushing part can also be curved, and the surface of the pushing part in contact with the first clutch member 43 is arranged as a curved surface. In this way, it can not only ensure that the first clutch member 43 can rotate with the first linkage member, but also effectively prevent the first clutch member 43 from disengaging from the contact with the pushing member 42.

[0061] The first driving member 41 may be a motor, and the pushing member 42 may be a pushing block, which is connected to the motor through a gear set to drive the pushing block to move. It is understandable that the first driving member 41 may also be other power structural members, and the pushing member 42 may also be other structural members that can cooperate with the first clutch member 43, which are not specifically limited here.

[0062] The first clutch component 43 may include a mounting bracket, a clutch pin and a spring. The mounting bracket is mounted in the second panel assembly 22. The clutch pin is movably mounted on the mounting bracket. The spring is sleeved on the outside of the clutch pin. The spring is used to provide a restoring force for the clutch pin to reset. This helps the clutch pin to withdraw from the notch of the plug-in slot and the opening of the snap-in hole, thereby improving the smoothness and effect of the clutch pin reset and improving the linkage reliability of the first linkage assembly 31 and the second linkage assembly 32.

[0063] Reference Figure 1 and Figure 2 , Figures 7 to 10 In other embodiments, the second lock body structure 2 includes a second handle assembly 21 and a second panel assembly 22, the second panel assembly 22 is connected to the door body, and the second handle assembly 21 is rotatably connected to the second panel assembly 22. The clutch structure 4 is disposed in the second handle assembly 21, the second linkage assembly 32 is connected to the second handle assembly 21, and can rotate synchronously with the second handle assembly 21. When the gear is engaged, the first linkage assembly 31 is linked to the second linkage assembly 32 through the second handle assembly 21.

[0064] In this way, the clutch structure 4 is arranged in the second handle assembly 21, thereby forming a multiple protection mechanism composed of the first handle assembly 11, the first face assembly, the door body and the second panel assembly 22, further improving the reliability of anti-theft. The first linkage assembly 31 is linked to the second linkage assembly 32 through the second handle assembly, which can not only effectively ensure the reliability of the linkage with the second linkage assembly 32 and improve the unlocking stability of the lock 100, but also effectively utilize the space between the structural parts and the structure, thereby improving the compactness of the structure and the space utilization rate.

[0065] Continue to refer to Figure 1 and Figure 2 , Figures 7 to 10 The clutch structure 4 includes a second driving member 44 and a second clutch member 45. The second clutch member 45 is connected to the second driving member 44. A buckle groove 451 is provided in the second clutch member 45. The first linkage assembly 31 is provided with a buckle connection portion 3141. The second driving member 44 is used to drive the second clutch member 45 to move toward or away from the first linkage assembly 31. When the gear is engaged, the buckle connection portion 3141 is buckled with the buckle groove 451, and the second clutch member 45 can rotate synchronously with the second handle assembly 21, and the first linkage assembly 31 drives the second clutch member 45 to rotate.

[0066] The second driving member 44 drives the second engaging member 45 to shift up or down the engaging portion 3141, so that the first linkage assembly 31 can drive the second handle assembly 21 to rotate by means of the second engaging member 45, thereby realizing the linkage rotation of the second linkage assembly 32, and further driving the locking tongue assembly to lock and unlock. With such a setting, the structure is simple and reliable, and the occupied space is small, which greatly improves the service performance of the lock 100.

[0067] Wherein, at least one plane is provided on the groove wall of the buckle groove 451, and at least one plane is provided on the outer peripheral wall of the engaging portion 3141. When the engaging portion 3141 is engaged with the buckle groove 451, the second engaging member 45 and the first linkage assembly 31 are linked to each other by surface-to-surface contact. The buckle groove 451 can be arranged in a rectangular shape, and the engaging portion 3141 can be arranged in a rectangular shape. The engaging portion 3141 is inserted into the buckle groove 451, and in this way, the linkage between the first linkage assembly 31 and the second engaging member 45 is realized.

[0068] It can be understood that the linkage manner between the second engaging member 45 and the first linkage assembly 31 can also be realized by other matching methods, as long as the synchronous rotation of the first linkage assembly 31 and the second engaging member 45 can be achieved.

[0069] The outer peripheral wall of the second engaging member 45 can be arranged in a square or rectangular shape. A square groove 2111 is provided in the second handle 211. When the second engaging member 45 moves to the engaging portion 3141 and the buckle groove 451 is engaged with the engaging portion 3141, the end of the second engaging member 45 close to the first linkage assembly 31 extends into the square groove 2111, and the outer peripheral wall of the second engaging member 45 is in surface-to-surface contact with the groove wall of the square groove 2111. In this way, the second handle 211 can be driven to rotate during the rotation of the second engaging member 45, thereby driving the second linkage assembly 32 to rotate.

[0070] The second engaging member 45 can be a clutch block or other structural member having a structure capable of locking the first linkage assembly 31, which will not be described in detail here.

[0071] Continue to refer to Figure 1 and Figure 2 、 Figures 7 to 10 As shown in FIGS. and, the first linkage assembly 31 includes a first rotating member 313 and a second rotating member 314. One end of the first rotating member 313 is connected to the first lock body structure 1, and the other end is in linkage cooperation with the second rotating member 314. The engaging portion 3141 is formed at one end of the second rotating member 314 away from the first rotating member 313.

[0072] Among them, the first rotating member 313 may be provided with a limiting groove 3131, and the limiting groove 3131 extends along the length direction of the first rotating member 313 itself. The second rotating member 314 is provided with a limiting rib 3142, and the limiting rib 3142 extends along the length direction of the second rotating member 314 itself. Both the first rotating member 313 and the second rotating member 314 are movably arranged in the square shaft 321. The limiting rib 3142 is in limiting cooperation with the limiting groove 3131, and the first rotating member 313 and the second rotating member 314 can be linked through the limiting rib 3142 and the limiting groove 3131.

[0073] With such a setting, a two-stage structure is adopted, which is not only convenient for installation, facilitating installation in the square shaft 321, but also convenient for later maintenance and replacement, and greatly improves the service performance of the lock 100.

[0074] Continue to refer to Figure 1 and Figure 2 、 Figures 7 to 10 The first linkage assembly 31 further includes an elastic member 315. One end of the elastic member 315 abuts against the first rotating member 313, and the other end abuts against the second rotating member 314. A first stop portion 3143 is provided on the outer peripheral wall of the second rotating member 314, and a second stop portion 2112 is provided on the second handle assembly 21. Under the action of the elastic member 315, the first stop portion 3143 and the second stop portion 2112 are in stop cooperation. Among them, the spring can be arranged in the limiting groove 3131.

[0075] With such a setting, by compressing or stretching the elastic member 315, the overall length of the first linkage assembly 31 can be changed to adapt to door bodies of various thicknesses, improving the applicability and service performance of the lock 100. At the same time, the elastic contact between the first rotating member 313 and the second rotating member 314 is ensured through the first stop portion 3143 and the second stop portion 2112, which helps to improve the transmission reliability between the first rotating member 313 and the second rotating member 314 and the unlocking and locking reliability of the lock 100.

[0076] The first rotating member 313 and the second rotating member 314 can be rotating shafts, or the first rotating member 313 and the second rotating member 314 can also be other structural members with a two-by-two linkage performance.

[0077] The elastic member 315 can be a spring or other structural members with elastic performance, and no specific limitation is made here.

[0078] Continue to refer to Figure 1 and Figure 2 、 Figures 7 to 10, the first lock body structure 1 includes a first handle assembly 11 and a first panel assembly 12. The first panel assembly 12 is connected to the outer side of the door body, and the first handle assembly 11 is rotatably connected to the first panel assembly 12. The lock 100 further includes an emergency unlocking assembly 5 provided in the first handle assembly 11. The emergency unlocking assembly 5 has an engaged state and a separated state. In the engaged state, the emergency unlocking assembly 5 can drive the second linkage assembly 32 to rotate synchronously to unlock or lock; in the separated state, the emergency unlocking assembly 5 and the second linkage assembly 32 are in a relatively free state.

[0079] The second linkage assembly 32 includes a square shaft 321 and a connecting block 323. One end of the square shaft 321 is linked with the second handle 211, and the square shaft 321 is also in linkage cooperation with the lock tongue assembly. The connecting block 323 is connected to the square shaft 321 and rotates synchronously with the square shaft 321. The emergency unlocking assembly 5 can be connected to or disengaged from the connecting block 323 through a bolt, so that the emergency unlocking assembly 5 can drive the connecting block 323 to rotate through the bolt, thereby driving the square shaft 321 to rotate.

[0080] With such a setting, in the case where the linkage structure 3 fails, the lock can be unlocked or locked through the emergency unlocking assembly 5, ensuring the normal use of the user and greatly improving the use performance of the lock 100.

[0081] In some embodiments, the emergency unlocking assembly 5 can be an electronic emergency unlocking lock core, such as an electronic emergency unlocking lock core with a TYPE-C socket, and the lock 100 can be unlocked or locked by operating an external plug-in terminal unlocking device. The electronic emergency unlocking lock core can be selected from suitable electronic emergency unlocking lock cores in the prior art according to actual needs, and will not be elaborated here in detail.

[0082] In other embodiments, the emergency unlocking assembly 5 can be a mechanical emergency unlocking lock core, and the user can unlock or lock by inserting an external key. The specific structure of the mechanical emergency unlocking lock core is not shown in the drawings of this embodiment. The mechanical emergency unlocking lock core can be selected from suitable mechanical emergency unlocking lock cores in the prior art according to actual needs, and will not be elaborated here in detail.

[0083] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural transformations made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A lock, characterized in that: The lock comprises a first lock body structure, a second lock body structure, a linkage structure and a clutch structure; wherein, The first lock body structure is installed on the outer side of the door body, and the second lock body is installed on the inner side of the door body; The linkage structure comprises a first linkage component and a second linkage component, one end of the first linkage component is connected to the first lock body structure, and the other end is connected to the second lock body structure, the second linkage component is sleeved on the outside of the first linkage component, and is linked with the lock tongue component of the lock; The clutch structure is arranged in the second lock body structure, and the clutch structure has a gear-engaging state and a gear-reducing state; in the gear-engaging state, the clutch structure engages the linkage structure in gear, and the first linkage component can be linked to the second linkage component to unlock or lock; in the gear-reducing state, the clutch structure reverses the linkage structure, and the first linkage component and the second linkage component are in a relatively free state.

2. The lock according to claim 1, characterized in that: The first linkage assembly is provided with a first linkage part, the second linkage assembly is provided with a second linkage part, the clutch structure includes a first clutch member, the first linkage part and the second linkage part are both arranged corresponding to the first clutch member, and the first clutch member can extend into or disengage from the first linkage part and the second linkage part, so that the linkage structure is in the gear-engaging state or the gear-reversing state.

3. The lock according to claim 2, characterized in that: The first linkage portion and the second linkage portion are both extended along the length direction of the first linkage component.

4. The lock according to claim 2, characterized in that: The clutch structure also includes a first driving member and a pushing member, the pushing member is in transmission cooperation with the first driving member, the pushing member has a pushing portion, the pushing portion has a plurality of inclined surfaces, the pushing portion is in sliding abutment cooperation with one end of the first clutch member through the plurality of inclined surfaces to drive the first clutch member to move.

5. The lock according to claim 1, characterized in that: The second lock body structure includes a second handle assembly and a second panel assembly, the second panel assembly is connected to the door body, the second handle assembly is rotatably connected to the second panel assembly, the clutch structure is arranged in the second handle assembly, the second linkage assembly is connected to the second handle assembly and can rotate synchronously with the second handle assembly, and when in the gear-engaging state, the first linkage assembly is linked to the second linkage assembly through the second handle assembly.

6. The lock according to claim 5, characterized in that: The clutch structure comprises a second driving member and a second clutch member, the second clutch member is connected to the second driving member, a buckle groove is provided in the second clutch member, the first linkage assembly is provided with a buckle connection portion, and the second driving member is used to drive the second clutch member to move toward or away from the first linkage assembly; When in the gear-engaging state, the buckling portion is buckled and matched with the buckling groove, the second clutch member can rotate synchronously with the second handle assembly, and the first linkage assembly drives the second clutch member to rotate.

7. The lock according to claim 6, characterized in that: The first linkage assembly includes a first rotating member and a second rotating member, one end of the first rotating member is connected to the first lock body structure, and the other end is linked to the second rotating member, and the buckle portion is formed at one end of the second rotating member away from the first rotating member.

8. The lock according to claim 7, characterized in that: The first linkage assembly further includes an elastic member, one end of which abuts against the first rotating member, and the other end of which abuts against the second rotating member; The outer peripheral wall of the second rotating member is provided with a first stopper, and the second handle assembly is provided with a second stopper. Under the action of the elastic member, the first stopper and the second stopper are stop-matched.

9. The lock according to claim 1, characterized in that: The first lock body structure includes a first handle assembly and a first panel assembly, the first panel assembly is connected to the outside of the door body, and the first handle assembly is rotatably connected to the first panel assembly; The lock further comprises an emergency unlocking assembly disposed in the first handle assembly, the emergency unlocking assembly having an engaged state and a disengaged state, in which the emergency unlocking assembly can be linked with the second linkage assembly to rotate synchronously to unlock or lock; In the separated state, the emergency unlocking component and the second linkage component are in a relatively free state.

10. The lock according to claim 9, characterized in that: The emergency unlocking component is an electronic emergency unlocking lock cylinder; or, the emergency unlocking component is a mechanical emergency unlocking lock cylinder.

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