Clutch mechanism and lock

Abstract

The utility model discloses a clutch mechanism and a lock. The clutch mechanism comprises a handle connecting base, a clutch core, a first meshing piece, a second meshing piece and a driving piece. The handle connecting base is provided with an installation space which is provided with a first opening. The clutch core surrounds at least part of the periphery of the handle connecting base and is provided with a sliding groove part, the sliding groove part is provided with a second opening, and the second opening is communicated with the first opening. And the clutch core is in transmission connection with a lock core of the lock. The first occlusion piece is movably arranged in the installation space in the first direction. The second engaging piece is movably arranged on the sliding groove part in the first direction. The driving piece is arranged on the side, away from the first meshing piece, of the second meshing piece and used for driving the second meshing piece to enter the installation space through the first opening to be meshed with the first meshing piece so that the handle connecting base can be coupled with the clutch core. According to the clutch mechanism, when the lock is vibrated or knocked, the handle connecting base and the clutch core are kept in a separated state, and the risk of illegal unlocking is effectively prevented.

Description

Technical Field

[0001] This application relates to the field of lock technology, and in particular to a clutch mechanism and a lock. Background Technology

[0002] Electronic locks typically use a clutch mechanism to open and lock. However, when an electronic lock is subjected to vibration or struck from below, the clutch pin may be impacted and move upwards, engaging with the handle connector and clutch core to lock. Turning the handle at this point will unlock the lock. Increasing the striking frequency further increases the probability of unlocking, posing a risk of unauthorized unlocking. Utility Model Content

[0003] This application discloses a clutch mechanism and a lock, which enables the handle connecting seat and the clutch core to remain separated when the lock is subjected to vibration or impact, effectively preventing the risk of illegal unlocking.

[0004] To achieve the above objectives, in a first aspect, this application discloses a clutch mechanism applied in a lock having a lock cylinder, the clutch mechanism comprising:

[0005] A handle connector having an installation space having a first opening;

[0006] A clutch core is disposed around at least a portion of the outer periphery of the handle connecting seat, the clutch core has a sliding groove portion having a second opening, the second opening communicating with the first opening in a first direction, and the clutch core is configured to drively connect to the lock cylinder.

[0007] A first engaging member is movably disposed in the mounting space along the first direction;

[0008] The second biting member is movably disposed in the sliding groove portion along the first direction, and the second biting member and the first biting member are spaced apart in the first direction;

[0009] A driving member is disposed on the side of the second engaging member away from the first engaging member, and the driving member is used to drive the second engaging member to enter the installation space through the first opening and engage with the first engaging member;

[0010] The first biting member has a biting state and a free state;

[0011] In the engaged state, the second engaging member enters the installation space through the first opening and engages with the first engaging member, thereby coupling the handle connecting seat and the clutch core;

[0012] In the free state, the first biting member moves away from the first opening along the first direction, and the second biting member enters the installation space through the first opening, with the first biting member and the second biting member maintaining a distance in the first direction.

[0013] In the clutch mechanism provided in this application, the handle connecting seat is provided with an installation space having a first opening, and the clutch core is provided with a sliding groove having a second opening. The first opening and the second opening are connected in a first direction. A first engaging member movable in the first direction is provided in the installation space, and a second engaging member movable in the first direction is provided in the sliding groove. The second engaging member is also spaced apart from the first engaging member in the first direction. A driving member is provided on the side of the second engaging member away from the first engaging member, and the driving member is used to drive the second engaging member to move toward the first engaging member. The first engaging member has an engaged state and a free state. In the engaged state, the driving member drives the first engaging member to move in the first direction and engage with the second engaging member, thereby coupling the handle connecting seat and the clutch core, so that the clutch core cannot rotate relative to the handle connecting seat. At this time, rotating the handle connecting seat can drive the lock core to unlock. In the free state, the first engaging member moves away from the first opening along the first direction. When the second engaging member enters the installation space, it maintains a distance from the first engaging member in the first direction, preventing the second engaging member from engaging with the first engaging member. At this time, rotating the handle connecting seat will not drive the clutch core to rotate, thus preventing the lock cylinder from being driven and the lock from being unlocked. Therefore, when the drive component of the lock equipped with this clutch mechanism is not working and is subjected to vibration or impact, the first engaging member is in a free state, and the first and second engaging members maintain a distance, preventing the handle connecting seat and the clutch core from coupling. This prevents unlocking by vibration or impact, effectively preventing the risk of unauthorized unlocking.

[0014] As an optional implementation, the handle connector includes a first bottom wall and a first side wall, the first side wall being connected to the first bottom wall to enclose the mounting space between the side wall and the first bottom wall, and the first side wall having the first opening.

[0015] The first bottom wall portion is provided with a first limiting portion and a second limiting portion that are opposite to each other and spaced apart along the second direction. A movable position is formed between the first limiting portion and the second limiting portion. The first engaging member is movably disposed in the movable position so that the first engaging member can move relative to the first limiting portion and the second limiting portion along the first direction.

[0016] The second direction is perpendicular to the first direction.

[0017] By providing a first limiting part and a second limiting part at intervals along the second direction on the first bottom wall, and constructing a movable position using the first limiting part and the second limiting part, the first engaging member is located in the movable position constructed by the first limiting part and the second limiting part. The first limiting part and the second limiting part can limit the first engaging member in the second direction, ensuring that the first engaging member and the second engaging member can be aligned in the second direction, thereby ensuring that the first engaging member and the second engaging member can engage normally when unlocking.

[0018] As an optional implementation, in the second direction, the first sidewall portion is provided with a first protrusion protruding from the first limiting portion and a second protrusion protruding from the second limiting portion;

[0019] The first protrusion and the second protrusion are spaced apart to form the first opening;

[0020] In the second direction, a first stop portion is provided on one side of the first engagement member, and a second stop portion is provided on the other side of the first engagement member. The first protrusion and the second protrusion are used to cooperate with the first stop portion and the second stop portion to prevent the first engagement member from disengaging from the movable position.

[0021] By providing a first protrusion and a second protrusion on the second side wall portion that are spaced apart along the second direction and form a first opening, and by providing a first stop and a second stop on both sides of the first engaging member along the second direction respectively, the first engaging member is prevented from disengaging from the first opening and engaging with the second engaging member by utilizing the cooperation of the first protrusion and the second protrusion with the first stop and the second stop, thus avoiding unexpected unlocking situations.

[0022] As an optional implementation, the handle connector further includes an annular wall portion disposed on the first bottom wall portion and located within the mounting space. The annular wall portion and the first opening are disposed opposite to each other in the first direction. The first limiting portion and the second limiting portion are located on the outer periphery of the annular wall portion and are connected to the annular wall portion. The movable position is formed between the first limiting portion, the second limiting portion and the annular wall portion.

[0023] The clutch mechanism further includes a first elastic element, which is disposed between the annular wall portion and the first engaging member. When the first engaging member moves along the first direction and deforms the first elastic element, the first elastic element applies a reverse force to the first engaging member.

[0024] When the lock is subjected to impact or vibration, causing the first engaging member to move along the first direction, the first engaging member moves to press against the first elastic member, compressing the first elastic member. When the impact or vibration disappears, the first elastic member applies an elastic force to the first engaging member, causing the first engaging member to reset. Thus, by utilizing the elastic member, the first engaging member can be automatically reset without manual reset, making the reset method simpler and more effective.

[0025] As an optional implementation, the first elastic element is a spring sheet, which has a first side and a second side opposite to each other along the thickness direction. The first limiting portion is provided with a first bearing surface, and the second limiting portion is provided with a second bearing surface. The first side abuts against the first bearing surface and the second bearing surface, and the second side faces the annular wall portion.

[0026] By setting the first elastic element as a spring sheet, and providing a first bearing surface and a second bearing surface on the first and second limiting portions respectively to support the spring sheet, the size of the clutch mechanism in the first direction can be reduced. Simultaneously, using the annular wall portion and the two bearing surfaces to limit the spring sheet simplifies the overall structure of the clutch mechanism, facilitates assembly, and reduces production costs.

[0027] As an alternative implementation, the first engaging member has a first end and a second end opposite to each other along the first direction. The first end is provided with an engaging portion for engaging with the second engaging member. The second end has an end face facing the annular wall portion, and the end face is recessed toward the first end.

[0028] By recessing the second end face of the first engagement member toward the first end, protrusions are formed on both sides of the second end of the first engagement member along the second direction. When the first engagement member presses against the spring piece along the first direction, the protrusions on both sides of the second end of the first engagement member can drive the spring piece to bend because the second side of the spring piece faces and abuts against the annular wall. This allows the spring piece to store elastic potential energy and provides a restoring elastic force for the first engagement member to reset. At the same time, the recess of the second end of the first engagement member can nest and cooperate with the annular wall, which can reduce the size of the clutch mechanism in the first direction and help to achieve a miniaturized design of the clutch mechanism.

[0029] As an optional implementation, there are two installation spaces, two first openings, and two first engaging members. The two installation spaces and two first openings are symmetrically arranged along the first direction, and the two first engaging members are symmetrically arranged along the first direction and are correspondingly arranged in the two installation spaces.

[0030] By setting two installation spaces, two first openings, and two first engaging parts, and symmetrically arranging the two installation spaces, two first openings, and two first engaging parts, when the clutch mechanism is applied to doors and windows with different orientations (left opening and right opening), the needs of doors and windows with different orientations can be met simply by rotating the second engaging part to engage with the different first engaging parts.

[0031] In one optional embodiment, the clutch mechanism further includes a second elastic element. The clutch core has a third limiting portion spaced apart from the second engaging member, and the second engaging member has a fourth limiting portion. The third limiting portion and the fourth limiting portion are spaced apart along the first direction. The second elastic element is located between the third limiting portion and the fourth limiting portion. One end of the second elastic element abuts against the third limiting portion, and the other end of the second elastic element abuts against the fourth limiting portion. The second elastic element is used to provide a reset elastic force to the second engaging member when the second engaging member moves toward the first engaging member.

[0032] By providing a third limiting part to the clutch core and a fourth limiting part to the second engaging member, with the third and fourth limiting parts spaced apart along a first direction, and a second elastic member positioned between the third and fourth limiting parts, when the user unlocks, the second engaging member moves along the first direction and compresses the second elastic member. After the user unlocks, the elastic force of the second elastic member drives the second engaging member to reset, enabling the lock to automatically lock. Furthermore, when the impact on the lock causes the force exerted by the second engaging member on the second elastic member to be less than the elastic force of the second elastic member, the second elastic member can also prevent unlocking due to vibration.

[0033] Secondly, this application provides a clutch mechanism for use in a lock with a lock cylinder, the clutch mechanism comprising:

[0034] A handle connector having an installation space having a first opening;

[0035] A clutch core is disposed around at least a portion of the outer periphery of the handle connecting seat. The clutch core has a sliding groove portion and a second opening, the second opening communicating with the first opening. The clutch core is kinetically connected to the lock cylinder.

[0036] A first engaging member is movably disposed in the mounting space along a first direction;

[0037] The second engaging member is movably disposed in the sliding groove portion along the first direction;

[0038] A driving member is disposed on the side of the second engaging member away from the first engaging member. The driving member is used to drive the second engaging member to enter the installation space through the first opening and engage with the first engaging member, so as to couple the handle connecting seat and the clutch core.

[0039] The handle connector has an installation space with a first opening, and the clutch core has a sliding groove with a second opening; the first and second openings are connected. A first engaging member movable in a first direction is located in the installation space, and a second engaging member movable in the first direction is located in the sliding groove. A driving member is located on the side of the second engaging member away from the first engaging member, driving the second engaging member towards the first engaging member. When the user unlocks the lock, the driving member moves the second engaging member in the first direction until it engages with the clutch core. At this time, the handle connector and clutch core are coupled, and the user can unlock the lock by rotating the handle connector. When the lock is struck or vibrated, both the first and second engaging members are impacted and move synchronously in the first direction, keeping them separated. The handle connector and clutch core remain separated, and even if the handle connector is rotated, unlocking cannot be achieved, thus preventing illegal unlocking when the lock is subjected to vibration or impact.

[0040] Secondly, this application discloses an electronic lock, which includes the clutch mechanism described above.

[0041] Compared with the prior art, the beneficial effects of this application are as follows:

[0042] In the clutch mechanism provided in this application, the handle connecting seat is provided with an installation space having a first opening, and the clutch core is provided with a sliding groove having a second opening. The first opening and the second opening are connected in a first direction. A first engaging member movable in the first direction is provided in the installation space, and a second engaging member movable in the first direction is provided in the sliding groove. The second engaging member is also spaced apart from the first engaging member in the first direction. A driving member is provided on the side of the second engaging member away from the first engaging member, and the driving member is used to drive the second engaging member to move toward the first engaging member. The first engaging member has an engaged state and a free state. In the engaged state, the driving member drives the first engaging member to move in the first direction and engage with the second engaging member, thereby coupling the handle connecting seat and the clutch core, so that the clutch core cannot rotate relative to the handle connecting seat. At this time, rotating the handle connecting seat can drive the lock core to unlock. In the free state, the first engaging member moves away from the first opening along the first direction. When the second engaging member enters the installation space, it maintains a distance from the first engaging member in the first direction, preventing the second engaging member from engaging with the first engaging member. At this time, rotating the handle connecting seat will not drive the clutch core to rotate, thus preventing the lock cylinder from being driven and the lock from being unlocked. Therefore, when the drive component of the lock equipped with this clutch mechanism is not working and is subjected to vibration or impact, the first engaging member is in a free state, and the first and second engaging members maintain a distance, preventing the handle connecting seat and the clutch core from coupling. This prevents unlocking by vibration or impact, effectively preventing the risk of unauthorized unlocking. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a three-dimensional structural schematic diagram of the clutch mechanism disclosed in the embodiments of this application;

[0045] Figure 2 This is a schematic diagram of the state when the first engaging member is in a separated state in the embodiments of this application;

[0046] Figure 3 This is a schematic diagram of the state when the first biting member is in the biting state in the embodiment of this application;

[0047] Figure 4 This is a schematic diagram of the state when the first engaging member is in a free state in the embodiments of this application;

[0048] Figure 5 This is an exploded view of the clutch mechanism disclosed in this embodiment;

[0049] Figure 6 This is a schematic diagram of the internal structure assembly of the handle connector disclosed in this embodiment;

[0050] Figure 7 This is a three-dimensional structural schematic diagram of the handle connector disclosed in the embodiments of this application;

[0051] Figure 8 This is a front view schematic diagram of the handle connector in the embodiment of this application;

[0052] Figure 9 This is an assembly diagram of the first elastic element in an embodiment of this application;

[0053] Figure 10 This is a three-dimensional structural schematic diagram of the first interlocking member in an embodiment of this application;

[0054] Figure 11 This is an assembly diagram of the first pressure plate in an embodiment of this application;

[0055] Figure 12 This is an exploded view of the clutch mechanism with a first pressure plate in an embodiment of this application;

[0056] Figure 13 This is a schematic diagram of the internal structure assembly of the clutch core disclosed in the embodiments of this application;

[0057] Figure 14 This is an assembly diagram of the second elastic element in an embodiment of this application;

[0058] Figure 15 This is an exploded view of the clutch mechanism with a second elastic element in an embodiment of this application;

[0059] Figure 16 This is a schematic diagram of the lock structure disclosed in the embodiments of this application.

[0060] Figure label:

[0061] Clutch mechanism 1;

[0062] Handle connector 11, mounting space 111, first opening 111a, rotating seat 112, connecting rod 113, first bottom wall 114, first limiting part 114a, second limiting part 114b, movable part 114c, first bearing surface 114d, second bearing surface 114e, first side wall 115, first protrusion 115a, second protrusion 115b, annular wall 116;

[0063] Clutch core 12, sliding groove 121, second opening 121a, sliding groove 121b, sleeve part 122, second bottom wall part 122a, second side wall part 122b, third limiting part 123.

[0064] First engaging member 13, first stop 131, second stop 132, engaging part 133, end face 134;

[0065] Second engaging member 14, fourth limiting part 141;

[0066] Drive component 15;

[0067] First elastic element 16;

[0068] First pressure plate 17;

[0069] Second elastic element 18;

[0070] Second pressure plate 19;

[0071] First direction P1, second direction P2. Detailed Implementation

[0072] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0073] In this application, the terms "upper," "front," "rear," "top," "inner," "outer," and "middle," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0074] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0075] Furthermore, the term "setup" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection via an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0076] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0077] In electronic locks, the clutch mechanism's handle connector is connected to the handle on one side and faces the clutch core on the other. The clutch core can rotate relative to the handle connector and has a square rod that engages with the lock body and bolt. Below the handle connector are a clutch pin and a motor that drives the clutch pin. When the motor is not working, the clutch pin disengages from the handle connector and clutch core. Turning the handle at this time causes the handle connector to rotate relative to the clutch core, effectively making it impossible to unlock. When an electronic key (such as fingerprint, password, face recognition, iris recognition, etc.) or a rotary mechanical key is used to drive the motor, the motor's push rod drives the clutch pin upwards, engaging the handle connector and clutch core to lock. In this state, the clutch core and handle are linked. Turning the handle rotates the clutch core, which in turn moves the square rod, engaging the lock body and bolt, thus unlocking the lock. When locking, the motor's push rod and clutch pin return to their original positions, and the handle connector and clutch core are no longer linked. However, if a tool such as a wooden hammer is used to strike the motor lock, the clutch pin may move upward under the impact, causing the handle connecting seat and the clutch core to engage and lock. If the handle connecting seat is turned at this time, the lock can be unlocked, meaning that existing electronic locks are at risk of being illegally unlocked.

[0078] To address the potential risk of unauthorized unlocking of electronic locks, the inventors incorporated a connecting component between the motor and the clutch pin. This component connects the motor's drive shaft to the clutch pin, which in turn moves the clutch pin to engage with the handle's connecting seat for locking. When the electronic lock is struck, the clutch pin is prevented from engaging with the handle's connecting seat due to the restriction imposed by the connecting component. For the handle's connecting seat to rotate properly, the clutch pin needs to rotate a certain distance relative to the connecting component. This results in a complex and bulky connecting component, leading to a complex electronic lock structure, high manufacturing costs, large size, and limited application scenarios.

[0079] Given the existing defects in the design of electronic locks, this application provides a clutch mechanism for use in locks with a lock cylinder. The clutch mechanism has a handle connecting seat with a first opening in the mounting space, and a clutch cylinder with a second opening in the sliding groove. The first and second openings are connected. A first engaging member movable in a first direction is disposed in the mounting space, and a second engaging member movable in the first direction is disposed in the sliding groove. A driving member is disposed on the side of the second engaging member away from the first engaging member, and the driving member is used to drive the second engaging member to move towards the first engaging member. The first engaging member has an engaged state and a free state. In the engaged state, the driving member drives the first engaging member to move in the first direction and engage with the second engaging member, thereby coupling the handle connecting seat and the clutch cylinder, preventing the clutch cylinder from rotating relative to the handle connecting seat. In this state, rotating the handle connecting seat can drive the lock cylinder, thus unlocking the lock. In the free state, the first engaging member moves away from the first opening along the first direction. When the second engaging member enters the installation space, it cannot engage with the first engaging member. At this time, rotating the handle connecting seat cannot drive the clutch core to rotate, thus preventing the lock cylinder from being driven and the lock from being unlocked. Therefore, when the drive component of the lock equipped with this clutch mechanism is not working and is subjected to vibration or impact, the first engaging member is in a free state, and the first and second engaging members remain separated, preventing the handle connecting seat and the clutch core from coupling. This prevents unlocking by vibration or impact, effectively preventing the risk of unauthorized unlocking.

[0080] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0081] Please see Figures 1 to 7 , Figure 1 This is a three-dimensional structural diagram of the clutch mechanism according to an embodiment of this application. Figure 2 This is a schematic diagram of the state when the first engaging member is in the disengaged state in an embodiment of this application. Figure 3 This is a schematic diagram of the state when the first engaging member is in the engaging state in an embodiment of this application. Figure 4 This is a schematic diagram of the state when the first engaging member is in a free state in an embodiment of this application. Figure 5 This is an exploded view of the clutch mechanism disclosed in this embodiment. Figure 6 This is a schematic diagram of the internal structure assembly of the handle connector disclosed in this embodiment. Figure 7 This is a three-dimensional structural diagram of the handle connector disclosed in the embodiments of this application.

[0082] The clutch mechanism 1 of this application embodiment includes: a handle connecting seat 11, a clutch core 12, a first engaging member 13, a second engaging member 14, and a driving member 15.

[0083] The handle connector 11 has an installation space 111, the installation space 111 has a first opening 111a, and the first engaging member 13 is movably disposed in the installation space 111 along a first direction P1.

[0084] The clutch core 12 surrounds at least a portion of the outer periphery of the handle connecting seat 11. The clutch core 12 has a groove portion 121, and the groove portion 121 has a second opening 121a communicating with the first opening 111a in the first direction P1. The second engaging member 14 is movably disposed in the groove portion 121 along the first direction P1 and is spaced apart from the first engaging member 13 in the first direction P1. Furthermore, the clutch core 12 is drive-connected to the lock cylinder of the lock.

[0085] The driving member 15 is disposed on the side of the second engaging member 14 away from the first engaging member 13. The driving member 15 is used to drive the second engaging member 14 from the first opening 111a into the installation space 111 and engage with the first engaging member 13, so that the handle connecting seat 11 and the clutch core 12 are coupled.

[0086] When the handle connecting seat 11 and the clutch core 12 are coupled, rotating the handle connecting seat 11 causes the clutch core 12 to rotate through the first engaging member 13 and the second engaging member 14, thereby causing the clutch core 12 to drive the lock cylinder to move, which can unlock the lock.

[0087] When the first engaging member 13 and the second engaging member 14 are separated, the handle connecting seat 11 and the clutch core 12 are decoupled. If the handle connecting seat 11 is rotated, the rotation of the handle connecting seat 11 cannot be transmitted to the clutch core 12 due to the separation of the first engaging member 13 and the second engaging member 14, so the clutch core 12 remains relatively stationary. At this time, the handle connecting seat 11 rotates freely, and the lock cannot be unlocked.

[0088] When the first engaging member 13 and the second engaging member 14 are separated, if the lock is struck with a tool such as a wooden hammer, the first engaging member 13 and the second engaging member 14 will move along the first direction P1 due to the impact of the strike or vibration, keeping the first engaging member 13 and the second engaging member 14 separated. At this time, the handle connecting seat 11 and the clutch core 12 remain decoupled. If the handle connecting seat 11 is rotated, the clutch core 12 cannot be rotated synchronously, and therefore the lock cannot be unlocked. It can be seen that the lock using the clutch mechanism 1 provided in this application can maintain a locked state when struck or vibrated, effectively preventing the risk of illegal unlocking.

[0089] It can be seen that the first biting member 13 has different states, such as the separated state when the first biting member 13 and the second biting member 14 are separated and both are at rest, the biting state when the first biting member 13 and the second biting member 14 are biting, and the free state when the first biting member 13 and the second biting member 14 are separated during movement.

[0090] Normally, the first engaging member 13 is in a disengaged state, for example, as Figure 5 As shown, the first engaging member 13 and the second engaging member 14 are separated from each other and are in a stationary state. That is, although the first engaging member 13 is positioned close to the first opening 111a, the second engaging member 14 does not enter the first opening 111a, so they are not engaged. At this time, the lock is in a locked state. When the user needs to unlock, a specific key (such as fingerprint, password, face, iris, mechanical key, etc.) can be used to trigger the drive member 15, causing the drive member 15 to drive the second engaging member 14 to move along the first direction P1, passing through the second opening 121a and the first opening 111a in sequence and entering the installation space 111. The second engaging member 14 moves to engage with the first engaging member 13, as shown. Figure 6 As shown. At this time, the first engaging member 13 is in the engaging state. When the user rotates the handle connecting seat 11, the clutch core 12 can drive the lock cylinder to unlock.

[0091] When the first engaging member 13 and the second engaging member 14 are separated, i.e., the lock is in the locked state, if the lock is struck with a hammer or other heavy object, both the first engaging member 13 and the second engaging member 14 will be impacted and move along the first direction P1. Specifically, the first engaging member 13 will move away from the first opening 111a. Even if the second engaging member 14 is forced into the first opening 111a, the first engaging member 13 will remain separated because it will not engage with the first engaging member 13. For example, as... Figure 7 As shown, at this time, the first engaging member 13 is in a free state. If the user rotates the handle connecting seat 11, the clutch core 12 will not be rotated by the handle connecting seat 11, thereby preventing illegal unlocking.

[0092] Optionally, the first direction P1 can be any direction. The following explanation uses the first direction P1 as the height direction as an example, but it is not stated that the following settings only apply to this example.

[0093] The following section will describe in detail the specific structure of the clutch mechanism in light of the different states of the first and second engaging parts.

[0094] In some embodiments, the first biting member 13 and the second biting member 14 can both be configured as block-shaped members or strip-shaped members, and the two can be engaged by cooperating grooves and protrusions.

[0095] In some embodiments, to make the first engaging member 13 more easily enter a free state when the lock is subjected to vibration or impact, the first engaging member 13 can be made of a lightweight component, for example, it can be made of a plastic component. In this way, since plastic has a low density, it has a small weight for the same volume. When the lock is subjected to vibration or impact, the first engaging member 13 can move along the first direction P1 under a small impact, thereby keeping it separated from the second engaging member 14.

[0096] In some embodiments, in order to keep the second engaging member 14 separated from the first engaging member 13 when the lock is subjected to vibration or impact, the second engaging member 14 can be made of a heavier component. For example, the second engaging member 14 can be made of a metal component such as steel or copper, or an alloy material component with a high density such as stainless steel, so that the second engaging member 14 can only move along the first direction P1 under sufficiently large impact.

[0097] The specific structure of the handle connector is described below.

[0098] In some embodiments, the handle connecting seat 11 may include a rotating seat 112 and a connecting rod 113. The rotating seat 112 is sleeved with the clutch core 12, and the connecting rod 113 is connected to the rotating seat 112. The connecting rod 113 is used to connect to the handle of the lock. The user rotates the handle of the lock, which drives the connecting rod 113 to rotate, thereby driving the rotating seat 112 to rotate, thus realizing the unlocking action.

[0099] In some embodiments, the rotating seat 112 is generally cylindrical, and the connecting rod 113 can be coaxially and fixedly connected to the rotating seat 112. Optionally, the rotating seat 112 can be integrally formed with the connecting rod 113, and the rotating seat 112 can also be fixedly connected to the connecting rod 113 by welding, screwing, snap-fitting, or other methods.

[0100] Optionally, the rotating seat 112 can be a cylindrical open shell, and the connecting rod 113 can be disposed on the side of the rotating seat 112 away from its open side, that is, the connecting rod 113 is located in the external space of the rotating seat 112.

[0101] Please see also Figure 8 and Figure 9 , Figure 8 This is a front view schematic diagram of the handle connector in an embodiment of this application. Figure 9 This is an assembly diagram of the first elastic element in an embodiment of this application.

[0102] In some embodiments, the rotating base 112 includes a first bottom wall portion 114 and a first side wall portion 115, the first side wall portion 115 being disposed around the first bottom wall portion 114 and connected to the first bottom wall portion 114. The first bottom wall portion 114 and the first side wall portion 115 together form an installation space 111, and the first side wall portion 115 is provided with the aforementioned first opening 111a.

[0103] In some embodiments, the first bottom wall portion 114 may be a circular plate-shaped member, and the first side wall portion 115 is disposed around the circular outline and connected to the first bottom wall portion 114. Since the first side wall portion 115 is provided with a first opening 111a, the first bottom wall portion 114 and the first side wall portion 115 constitute a cylindrical groove with the first opening 111a.

[0104] In some embodiments, the first bottom wall portion 114 is provided with a first limiting portion 114a and a second limiting portion 114b that are opposite to and spaced apart along the second direction P2, and a movable position 114c is formed between the first limiting portion 114a and the second limiting portion 114b. The first engaging member 13 is movably disposed in the movable position 114c relative to the first limiting portion 114a and the second limiting portion 114b along the first direction P1. The second direction P2 is perpendicular to the first direction P1. With this configuration, the first limiting part 114a and the second limiting part 114b can limit the first engaging member 13 in the second direction P2, preventing the first engaging member 13 from moving relative to the first limiting part 114a and / or the second limiting part 114b in the second direction P2. This avoids misalignment of the first engaging member 13 and the second engaging member 14 in the second direction P2, ensuring that the first engaging member 13 and the second engaging member 14 can be aligned in the second direction P2, thereby ensuring that the first engaging member 13 and the second engaging member 14 can engage normally during normal unlocking.

[0105] It is understandable that when the first direction P1 is the height direction, the second direction P2 is the horizontal direction.

[0106] The first limiting portion 114a and the second limiting portion 114b can be configured as protrusions extending from the surface of the first bottom wall portion 114, similar to the protrusions of the first side wall portion 115. The first limiting portion 114a and the second limiting portion 114b are located within the space enclosed by the first side wall portion 115, and the first limiting portion 114a and the second limiting portion 114b have at least a portion extending along the first direction P1. Thus, in the second direction P2, the interval between the first limiting portion 114a and the second limiting portion 114b can form the aforementioned movable position 114c.

[0107] Furthermore, by utilizing the first limiting part 114a and the second limiting part 114b, the structure of the handle connecting seat 11 can be strengthened, so that the handle connecting seat 11 has sufficient structural strength.

[0108] In some embodiments, the first sidewall portion 115 is connected to the first limiting portion 114a and the second limiting portion 114b, such that the first bottom wall portion 114, the first limiting portion 114a, the second limiting portion 114b and the first sidewall portion 115 together form the movable position 114c.

[0109] Optionally, the first bottom wall portion 114, the first limiting portion 114a, the second limiting portion 114b, and the first side wall portion 115 can be independent components or integrally formed components. Alternatively, a portion of the first bottom wall portion 114, the first limiting portion 114a, the second limiting portion 114b, and the first side wall portion 115 can be independent components, while a portion can be integrally formed components. The following description uses the example of the first bottom wall portion 114, the first limiting portion 114a, the second limiting portion 114b, and the first side wall portion 115 being an integrally formed component, but it does not mean that the following configuration is only applicable to this example.

[0110] In some embodiments, in the second direction P2, the first sidewall portion 115 is provided with a first protrusion 115a protruding from the first limiting portion 114a and a second protrusion 115b protruding from the second limiting portion 114b. The first protrusion 115a and the second protrusion 115b are spaced apart to form the aforementioned first opening 111a.

[0111] Understandably, the distance between the first limiting portion 114a and the second limiting portion 114b in the second direction P2 is greater than the distance between the first protrusion 115a and the second protrusion 115b in the second direction P2. That is, the first opening 111a is constricted relative to the movable position 114c in the second direction P2. The first protrusion 115a and the second protrusion 115b can prevent the first engaging member 13 from disengaging from the first opening 111a from the movable position 114c, thus preventing the clutch mechanism 1 from failing.

[0112] In some embodiments, in the second direction P2, a first stop portion 131 is provided on one side of the first engaging member 13, and a second stop portion 132 is provided on the other side of the first engaging member 13. The first stop portion 131 and the second stop portion 132 protrude from the surface of the remaining portion of the first engaging member 13 in the second direction P2. That is, the distance between the surface of the first stop portion 131 and the surface of the second stop portion 132 in the second direction P2 is greater than the distance between the two side surfaces of the remaining portion of the first engaging member 13 in the second direction P2.

[0113] Understandably, the first stop 131 and the first protrusion 115a are correspondingly arranged, and the second stop 132 and the second protrusion 115b are correspondingly arranged. When the first engaging member 13 moves toward the first opening 111a along the first direction P1, the first protrusion 115a abuts against the first stop 131, and the second protrusion 115b abuts against the second stop 132, so that the first engaging member 13 cannot disengage from the movable position 114c through the first opening 111a, preventing the first engaging member 13 from disengaging from the movable position 114c at the first opening 111a and engaging with the second engaging member 14, thus avoiding unexpected unlocking situations.

[0114] In some embodiments, the portion of the first engaging member 13 provided with the first stop portion 131 and the second stop portion 132 has a dimension in the second direction P2 equal to or slightly smaller than the dimension of the movable part 114c in the second direction P2. The portion of the first engaging member 13 without the first stop portion 131 and the second stop portion 132 has a dimension in the second direction P2 equal to or slightly smaller than the dimension of the first opening 111a in the second direction P2. Thus, the portion of the first engaging member 13 without the first stop portion 131 and the second stop portion 132 can move to the first opening 111a, thereby reducing the distance the second engaging member 14 needs to travel after passing through the first opening 111a to engage with the first engaging member 13.

[0115] In some embodiments, when the first stop portion 131 and the second stop portion 132 abut against the first protrusion 115a and the second protrusion 115b respectively, the end of the first engaging member 13 facing the second engaging member 14 may be flush with the outer contour of the first bottom wall portion 114.

[0116] It is understandable that the first stop 131 and the second stop 132 can both be protrusions or protrusions on the first engagement member 13.

[0117] Please see again Figure 8 In some embodiments, the handle connector 11 further includes an annular wall portion 116 disposed on the first bottom wall portion 114 and located within the mounting space 111. The annular wall portion 116 is disposed opposite to the first opening 111a in the first direction P1. The first limiting portion 114a and the second limiting portion 114b are located on the outer periphery of the annular wall portion 116, and the first limiting portion 114a and the second limiting portion 114b are connected to the annular wall portion 116. A movable position 114c is formed between the first limiting portion 114a, the second limiting portion 114b and the annular wall portion 116.

[0118] It is understandable that when the first bottom wall portion 114 can be configured as a circular plate, the annular wall portion 116 can be concentrically configured with the first bottom wall portion 114, that is, the orthographic projection of the annular wall portion 116 on the first bottom wall portion 114 is a circle, and the outline of the annular wall portion 116 is a concentric circle with the outline of the first bottom wall portion 114.

[0119] It is understood that the annular wall portion 116 can be provided corresponding to the connecting rod 113, that is, the connecting rod 113 can be provided with a through hole extending through the annular wall portion 116, so that the through hole can be connected to the through hole on the clutch core 12.

[0120] Please see again Figure 9 , Figure 9 This is a three-dimensional structural schematic diagram of the first interlocking member in the embodiments of this application.

[0121] In some embodiments, the clutch mechanism 1 further includes a first elastic element 16 disposed between the annular wall portion 116 and the first engaging member 13. When the first engaging member 13 moves along the first direction P1, causing the first elastic element 16 to deform, the first elastic element 16 applies an elastic force to the first engaging member 13. When the lock is subjected to a knock or vibration, causing the first engaging member 13 to move along the first direction P1, the first engaging member 13 moves to press against the first elastic element 16, compressing the first elastic element 16. When the impact of the knock or vibration disappears, the first elastic element 16 applies an elastic force to the first engaging member 13, causing the first engaging member 13 to reset.

[0122] In some embodiments, the first elastic member 16 may be a spring, with one end connected to the annular wall portion 116 and the other end being a free end. When the first engaging member 13 moves to abut against the free end of the spring, the spring can be compressed if the first engaging member 13 continues to move. Of course, the free end of the spring may also be connected to the first engaging member 13, and in the spring's natural or stretched state, the first engaging member 13 is positioned where the first stop portion 131 and the second stop portion 132 abut against the first protrusion 115a and the second protrusion 115b, respectively.

[0123] In other embodiments, the first elastic element 16 may also be a sheet spring, which has a first side and a second side opposite to each other along its thickness direction. The first limiting portion 114a is provided with a first bearing surface 114d, and the second limiting portion 114b is provided with a second bearing surface 114e. The first side of the sheet spring abuts against the first bearing surface 114d and the second bearing surface 114e, while the second side faces the annular wall portion 116. When the first engaging member 13 moves along the first direction P1 to press against the sheet spring, the first engaging member 13 causes the sheet spring to bend, thereby storing elastic potential energy in the sheet spring. When the sheet spring spring returns to its original shape, it applies an elastic force to the first engaging member 13.

[0124] Understandably, the thickness direction of the spring sheet is the same as the first direction P1. This reduces the size of the clutch mechanism 1 in the first direction P1. At the same time, by using the annular wall portion 116 and the two bearing surfaces to limit the spring sheet, the overall structure of the clutch mechanism 1 can be simplified, making it easier to assemble and reducing production costs.

[0125] Please see also Figure 10 , Figure 10 This is a three-dimensional structural schematic diagram of the first interlocking member in the embodiments of this application.

[0126] In some embodiments, when the first elastic member 16 is a spring sheet, the first engaging member 13 has a first end and a second end opposite to each other along the first direction P1. The first end is provided with an engaging portion 133 for engaging with the second engaging member 14. The second end has an end face 134 facing the annular wall portion 116, and the end face 134 is recessed toward the first end. By making the end face 134 of the second end of the first engaging member 13 recessed toward the first end, protrusions are formed on both sides of the second end of the first engaging member 13 along the second direction P2. When the first engaging member 13 presses against the spring sheet along the first direction P1, since the second side of the spring sheet faces and abuts against the annular wall portion 116, the protrusions on both sides of the second end of the first engaging member 13 can drive the spring sheet to bend, thereby storing elastic potential energy in the spring sheet and providing a reset elastic force for the reset of the first engaging member 13. Meanwhile, the recess at the second end of the first engaging member 13 can nest and cooperate with the annular wall portion 116, which can reduce the size of the clutch mechanism 1 in the first direction P1 and help to achieve the miniaturization design of the clutch mechanism 1.

[0127] Please see also Figure 11 and Figure 12 , Figure 11 This is an assembly diagram of the first pressure plate in an embodiment of this application. Figure 12 This is an exploded view of the clutch mechanism with a first pressure plate in an embodiment of this application.

[0128] In some embodiments, the handle connector 11 is further provided with a first pressure plate 17, which is connected to the first limiting portion 114a and the second limiting portion 114b, and is disposed opposite to the first bottom wall portion 114. That is, the first bottom wall portion 114, the first limiting portion 114a, the second limiting portion 114b and the first pressure plate 17 form a movable position 114c, and the first bottom wall portion 114, the first protrusion 115a, the second protrusion 115b and the first pressure plate 17 form the aforementioned first opening 111a. By providing the first pressure plate 17, the first engaging member 13 and the first elastic member 16 can be confined within the mounting space 111.

[0129] Optionally, the first pressure plate 17 can be detachably connected to the first limiting part 114a and the second limiting part 114b by means of screwing, plugging, snapping, bonding or welding.

[0130] The structure of the clutch core will be described in detail below.

[0131] Please see also Figure 13 , Figure 13This is a schematic diagram of the internal structure and assembly of the clutch core disclosed in the embodiments of this application.

[0132] In some embodiments, the clutch core 12 is disposed opposite to the open side of the rotating seat 112, that is, when the clutch core 12 is sleeved on the outer periphery of the rotating seat 112, the clutch core 12 can substantially cover a portion of the opening of the rotating seat 112. Specifically, the clutch core 12 may include a sleeve portion 122, which is connected to the sliding groove portion 121 and surrounds a portion of the outer periphery of the rotating seat 112. When the first engaging member 13 and the second engaging member 14 are separated from each other, the sleeve portion 122 is rotatable relative to the rotating seat 112. When the first engaging member 13 and the second engaging member 14 are engaged, the sleeve portion 122 can rotate synchronously with the rotating seat 112 under the drive of the rotating seat 112.

[0133] In some embodiments, the socket 122 has a second bottom wall portion 122a and a second side wall portion 122b. The second bottom wall portion 122a may be semi-circular. The second side wall portion 122b is disposed along the arc edge of the second bottom wall portion 122a and is connected to the second bottom wall portion 122a. The second side wall portion 122b is not disposed at a position other than the arc edge of the second bottom wall portion 122a, thereby forming a semi-circular shell shape for the socket 122. The rotating seat 112 is partially located in the semi-circular shell.

[0134] Of course, the second bottom wall portion 122a can also be non-circular, and the specific design can be determined according to the actual situation, which will not be elaborated here. The sleeve portion 122 can also be connected to the aforementioned lock cylinder transmission.

[0135] Optionally, the slide groove 121 may be provided on the second side wall 122b, and the slide groove 121 may extend along the radial direction of the second bottom wall 122a. The slide groove 121 may be a protrusion provided on the second side wall 122b. The slide groove 121 also has a slide groove 121b extending along the first direction P1. The slide groove 121b communicates with the second opening 121a. The second engaging member 14 is located in the slide groove 121b and can move in the slide groove 121b along the first direction P1.

[0136] Please see also Figure 14 and Figure 15 , Figure 14 This is an assembly diagram of the second elastic element in an embodiment of this application. Figure 15 This is an exploded view of the clutch mechanism with a second elastic element in an embodiment of this application.

[0137] In some embodiments, the clutch mechanism 1 further includes a second elastic element 18. The clutch core 12 has a third limiting portion 123 spaced apart from the second engaging member 14, and the second engaging member 14 has a fourth limiting portion 141. The third limiting portion 123 and the fourth limiting portion 141 are spaced apart along a first direction P1. The second elastic element 18 is located between the third limiting portion 123 and the fourth limiting portion 141. One end of the second elastic element 18 abuts against the third limiting portion 123, and the other end of the second elastic element 18 abuts against the fourth limiting portion 141. The second elastic element 18 is used to provide a reset elastic force to the second engaging member 14 when the second engaging member 14 moves toward the first engaging member 13. Thus, when the user unlocks, the second engaging member 14 moves along the first direction P1 and compresses the second elastic element 18. After the user completes unlocking, the elastic force of the second elastic element 18 drives the second engaging member 14 to reset, enabling the lock to automatically lock. Furthermore, when the impact on the lock causes the force exerted by the second engaging member 14 on the second elastic member 18 to be less than the elastic force of the second elastic member 18, the second elastic member 18 can also prevent vibration from unlocking.

[0138] In some embodiments, the second elastic member 18 is a spring, which is sleeved on the outer periphery of the second engaging member 14. In this case, the third limiting part 123 may be an annular structure surrounding the outer periphery of the second engaging member 14, or a plurality of structures spaced apart around the outer periphery of the second engaging member 14. The fourth limiting part 141 may be an annular protrusion surrounding the outer periphery of the second engaging member 14, or a plurality of protrusions spaced apart around the outer periphery of the second engaging member 14. One end of the spring abuts against the third limiting part 123, and the other end abuts against the fourth limiting part 141.

[0139] In some embodiments, the third limiting portion 123 is symmetrically disposed on opposite sides of the second engaging member 14 along the second direction P2, and the fourth limiting portion 141 is also symmetrically disposed on opposite sides of the second engaging member 14 along the second direction P2. Two second elastic members 18 are provided, spaced apart along the second direction P2, and respectively corresponding to the two fourth limiting portions 141. By providing two third limiting portions 123, two fourth limiting portions 141, and two elastic members 18, and by symmetrically and correspondingly distributing the third limiting portions 123, the fourth limiting portions 141, and the second elastic members 18 on opposite sides of the second engaging member 14 along the second direction P2, the second engaging member 14 can be subjected to balanced force, resulting in smoother movement.

[0140] In some embodiments, the first elastic element 16 and the second elastic element 18 can be configured such that the stiffness coefficient of the first elastic element 16 is smaller than that of the second elastic element 18. In other words, the first elastic element 16 and the second elastic element 18 are configured such that, under the same impact, the first elastic element 16 is more easily deformed than the second elastic element 18. Thus, when the lock is subjected to vibration or impact, the first engaging member 13 moves upward along the first direction P1. Because the first elastic element 16 is more easily deformed, while the second elastic element 18 has greater hardness, the first elastic element 16 deforms under the action of the first engaging member 13, causing the first engaging member 13 to move further upward. The second elastic element 18 deforms less, and the second engaging member 14 has difficulty overcoming the elastic force of the second elastic element 18, resulting in a smaller upward stroke and a larger distance between the first engaging member 13 and the second engaging member 14.

[0141] Please see again Figure 15 In some embodiments, the clutch mechanism 1 further includes a second pressure plate 19 connected to the slide groove 121. By providing the second pressure plate 19, the second engagement member 14 and the second elastic member 18 can be restricted within the slide groove 121.

[0142] Optionally, the second pressure plate 19 can be detachably connected to the slide section 121 by means of screwing, plugging, snapping, bonding or welding.

[0143] See you again Figure 15 In some embodiments, the handle connector 11 has two mounting spaces 111, the second sidewall 115 forms two first openings 111a, and there are two first engaging members 13, which are arranged in the two mounting spaces one-to-one. Thus, when the clutch mechanism 1 is applied to doors and windows opening in different directions (left-opening, right-opening), the needs of doors and windows opening in different directions can be met simply by rotating the second engaging member 14 to engage with the different first engaging members 13.

[0144] It is understood that one of the first engaging member 13 and the second engaging member 14 is provided with a slot, and the other is provided with a pin. Engagement between the first engaging member 13 and the second engaging member 14 is achieved by inserting the pin into the slot. That is, the engaging portion 133 of the first engaging member 13 can be either a slot or a pin. When the engaging portion 133 is a slot, the second engaging member 14 is provided with a pin that mates with the slot; alternatively, the second engaging member 14 itself may be a pin. When the engaging portion 133 is a pin, the second engaging member 14 is provided with a slot that mates with the pin.

[0145] Please see also Figure 16 , Figure 16 This is a schematic diagram of the internal structure of a lock according to an embodiment of this application.

[0146] This application also provides a lock 2, which has a clutch mechanism 1 as described in any of the above embodiments. The lock 2 also has a handle 21 and a lock cylinder (not shown). The handle 21 is connected to the handle connecting seat 11 of the clutch mechanism 1, and the lock cylinder is connected to the clutch core 12 of the handle connecting seat 11. When the user unlocks the lock, after the handle connecting seat 11 and the clutch core 12 of the clutch mechanism 1 are coupled, rotating the handle 21 can cause the handle connecting seat 11 and the handle 21 to rotate synchronously, thereby driving the clutch core 12 to rotate and driving the lock cylinder to unlock.

[0147] The clutch mechanism and lock disclosed in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the clutch mechanism and lock and their core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A clutch mechanism, characterized in that, Applied in locks, the locks include a lock cylinder, and the clutch mechanism includes: A handle connector having an installation space having a first opening; A clutch core is disposed around at least a portion of the outer periphery of the handle connecting seat, the clutch core has a sliding groove portion having a second opening, the second opening communicating with the first opening in a first direction, and the clutch core is configured to drively connect to the lock cylinder. A first engaging member is movably disposed in the mounting space along the first direction; The second biting member is movably disposed in the sliding groove portion along the first direction, and the second biting member and the first biting member are spaced apart in the first direction; A driving member is disposed on the side of the second engaging member away from the first engaging member, and the driving member is used to drive the second engaging member to enter the installation space through the first opening and engage with the first engaging member; The first biting member has a biting state and a free state; In the engaged state, the second engaging member enters the installation space through the first opening and engages with the first engaging member, thereby coupling the handle connecting seat and the clutch core; In the free state, the first biting member moves away from the first opening along the first direction, and the second biting member enters the installation space through the first opening, with the first biting member and the second biting member maintaining a distance in the first direction.

2. The clutch mechanism according to claim 1, characterized in that, The handle connector includes a first bottom wall and a first side wall. The first side wall surrounds and connects to the first bottom wall to enclose the installation space between the side wall and the first bottom wall. The first side wall is provided with the first opening. The first bottom wall portion is provided with a first limiting portion and a second limiting portion that are opposite to each other and spaced apart along the second direction. A movable position is formed between the first limiting portion and the second limiting portion. The first engaging member is movably disposed in the movable position so that the first engaging member can move relative to the first limiting portion and the second limiting portion along the first direction. The second direction is perpendicular to the first direction.

3. The clutch mechanism according to claim 2, characterized in that, In the second direction, the first sidewall portion is provided with a first protrusion protruding from the first limiting portion and a second protrusion protruding from the second limiting portion; The first protrusion and the second protrusion are spaced apart to form the first opening; In the second direction, a first stop portion is provided on one side of the first engagement member, and a second stop portion is provided on the other side of the first engagement member. The first protrusion and the second protrusion are used to cooperate with the first stop portion and the second stop portion to prevent the first engagement member from disengaging from the movable position.

4. The clutch mechanism according to claim 2, characterized in that, The handle connector further includes an annular wall portion disposed on the first bottom wall portion and located within the installation space. The annular wall portion and the first opening are disposed opposite to each other in the first direction. The first limiting portion and the second limiting portion are located on the outer periphery of the annular wall portion and are connected to the annular wall portion. The movable position is formed between the first limiting portion, the second limiting portion and the annular wall portion. The clutch mechanism further includes a first elastic element, which is disposed between the annular wall portion and the first engaging member. When the first engaging member moves along the first direction and abuts against the first elastic element to deform the first elastic element, the first elastic element applies a reverse force to the first engaging member.

5. The clutch mechanism according to claim 4, characterized in that, The first elastic element is a spring sheet, which has a first side and a second side opposite to each other along the thickness direction. The first limiting part has a first bearing surface, and the second limiting part has a second bearing surface. The first side abuts against the first bearing surface and the second bearing surface, and the second side faces the annular wall part.

6. The clutch mechanism according to claim 4, characterized in that, The first biting member has a first end and a second end opposite to each other along the first direction. The first end is provided with a biting portion for biting with the second biting member. The second end has an end face facing the annular wall portion, and the end face is recessed towards the first end.

7. The clutch mechanism according to any one of claims 1-6, characterized in that, There are two installation spaces, two first openings, and two first engaging members. The two installation spaces and two first openings are symmetrically arranged along the first direction. The two first engaging members are symmetrically arranged along the first direction and are arranged in the two installation spaces in a one-to-one correspondence.

8. The clutch mechanism according to any one of claims 1-6, characterized in that, The clutch mechanism further includes a second elastic element. The clutch core has a third limiting portion spaced apart from the second engaging member. The second engaging member has a fourth limiting portion. The third limiting portion and the fourth limiting portion are spaced apart along the first direction. The second elastic element is located between the third limiting portion and the fourth limiting portion. One end of the second elastic element abuts against the third limiting portion, and the other end of the second elastic element abuts against the fourth limiting portion. The second elastic element is used to provide a reset elastic force to the second engaging member when the second engaging member moves toward the first engaging member.

9. A clutch mechanism, characterized in that, Applied in locks, the locks include a lock cylinder, and the clutch mechanism includes: A handle connector having an installation space having a first opening; A clutch core is disposed around at least a portion of the outer periphery of the handle connecting seat. The clutch core has a sliding groove portion and a second opening, the second opening communicating with the first opening. The clutch core is kinetically connected to the lock cylinder. A first engaging member is movably disposed in the mounting space along a first direction; The second engaging member is movably disposed in the sliding groove portion along the first direction; A driving member is disposed on the side of the second engaging member away from the first engaging member. The driving member is used to drive the second engaging member to enter the installation space through the first opening and engage with the first engaging member, so as to couple the handle connecting seat and the clutch core.

10. A lock, characterized in that, Includes the clutch mechanism as described in any one of claims 1-9.

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