Clutch mechanism and lock body

Abstract

The application discloses a kind of clutch mechanism and lock body. Based on the present application, the contact area required by the surface contact of the clutch lock block can be guaranteed by the size in the axial direction, without relying on the size expansion in the radial direction, thereby helping to reduce the radial space occupied by the clutch mechanism. In addition, the position of the clutch lock block in the radial direction can be constrained to keep synchronization with the clutch push plate. When the clutch state is in the open state, this constraint can prevent the clutch lock block from shifting due to external vibration, thereby preventing the clutch state from switching from the open state to the closed state, and eliminating the safety hazard of the lock body being mistakenly unlocked.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of lock body, in particular to a kind of clutch mechanism suitable for lock body and a kind of lock body applying the clutch mechanism. BACKGROUND

[0002] The clutch mechanism in lock body is used to realize the switching of the clutch state between handle and lock body. Wherein, when the clutch state is closed state, handle can be connected with unlocking execution mechanism in lock body by clutch mechanism, so that unlocking execution mechanism can realize unlocking in response to operating force applied to handle;When the clutch state is disconnected state, the operating force applied to handle will not be transmitted to unlocking execution mechanism, so that handle can only idle relative to lock body in response to operating force.

[0003] In order to realize the switching of clutch state, clutch mechanism usually includes two shafts that are mutually sleeved and movable pin, wherein two shafts are connected with handle and unlocking execution mechanism respectively;When pin is driven by driving force and penetrates into the pin hole of the sleeved part of two shafts along radial direction, two shafts can rotate synchronously, so that the clutch state is set to closed state;When driving force disappears, pin can be automatically withdrawn outside two shafts by elastic force generated by reset element, to restore the free state of relative rotation between two shafts, so that the clutch state is set to disconnected.

[0004] Wherein, in order to facilitate the smooth penetration and withdrawal of pin, pin and pin hole of two shafts are usually gap fit, so that pin and pin hole can only form line contact at tangent position, which leads to weak connection strength between two shafts through pin.

[0005] Although the connection strength can be improved by increasing the length range of line contact, but the improvement is limited, and the superimposed thickness of two shafts in sleeved part needs to be increased, and the length of pin needs to be increased accordingly. Thus, the radial space occupied by pin completely withdrawn from two shafts outside two shafts will also increase, which leads to larger space occupied by clutch mechanism.

[0006] Therefore, the clutch mechanism using pin provides lower connection strength and larger radial space. SUMMARY

[0007] In the embodiments of the present application, a kind of clutch mechanism and a kind of lock body are provided, which help to improve the connection strength of clutch mechanism in closed state and help to reduce the radial space occupied by clutch mechanism.

[0008] One embodiment of a kind of clutch mechanism, comprising:

[0009] a first shaft body, an outer peripheral wall of the first shaft body having a first open slot, and the first open slot penetrating through the outer peripheral wall of the first shaft body in an axial direction;

[0010] a second shaft body coaxially arranged with the first shaft body, an outer peripheral wall of the second shaft body having a second open slot, and the second open slot penetrating through the outer peripheral wall of the second shaft body in an axial direction;

[0011] a first reset element generating a first reset force between the first shaft body and the second shaft body, the first reset force being used to drive a phase of the second open slot to align with the first open slot;

[0012] a clutch push plate used to translate in a radial direction of the first shaft body in response to a driving force, the translation including feeding towards the first shaft body and retreating away from the first shaft body;

[0013] a clutch lock block, wherein:

[0014] when the clutch lock block is pushed by the clutch push plate being fed to be embedded in the first open slot and the second open slot which are in phase with each other, the clutch lock block forms a surface contact with slot walls of the first open slot and the second open slot, so that a clutch state between the first shaft body and the second shaft body is set to a closed state;

[0015] when the clutch lock block is disengaged from the first open slot and the second open slot, the clutch state between the first shaft body and the second shaft body is released to an open state.

[0016] In some examples, optionally, a position of the clutch lock block in a radial direction of the first shaft body is constrained to be kept in synchronization with the clutch push plate; wherein the clutch lock block is disengaged from the first open slot and the second open slot by traction of the clutch push plate being retreated.

[0017] In some examples, optionally, the clutch push plate has an arc-shaped sliding groove; the clutch lock block is arranged in the clutch push plate through the arc-shaped sliding groove; wherein the arc-shaped sliding groove forms a limiting constraint on the clutch lock block in the radial direction of the first shaft body; and when the clutch lock block is embedded in the first open slot and the second open slot which are in phase with each other, a center of the arc-shaped sliding groove coincides with an axis of the first shaft body to allow the clutch lock block to swing with synchronous rotation of the second shaft body and the first shaft body.

[0018] In some examples, optionally, the clutch lock block comprises a lock block body and a hooking member; wherein the lock block body is configured to be embedded in the first and second open slots with phase alignment, and to form a surface contact with the slot walls of the first and second open slots; and the hooking member is arranged in the arc-shaped sliding slot, and the arc-shaped sliding slot forms a limiting constraint on the hooking member in the radial direction; when the center of the arc-shaped sliding slot coincides with the axis of the first shaft body, the hooking member slides in the arc-shaped sliding slot in response to the swinging of the clutch lock block, and maintains the limiting constraint generated by the arc-shaped sliding slot in the radial direction.

[0019] In some examples, optionally, the hooking member comprises a protruding arm and a plug column; wherein the protruding arm protrudes laterally outward from the lock block body; and the plug column is located at the arm end of the protruding arm and is inserted into the arc-shaped sliding slot, the plug column is located at the arm end of the protruding arm and is inserted into the arc-shaped sliding slot, the plug column and the arc-shaped sliding slot are in sliding fit, and the arc-shaped sliding slot generates the limiting constraint on the plug column in the radial direction.

[0020] In some examples, optionally, the first shaft body further has a guide member; the clutch lock block and the guide member are in sliding fit; wherein the guide member is configured to align the clutch lock block with the first open slot along the moving path of the feeding and retreating of the clutch push plate.

[0021] In some examples, optionally, the guide member comprises a guide plate and a guide slot, wherein the guide plate protrudes outward from the outer peripheral wall of the first shaft body, the guide slot is arranged on the guide plate in the radial direction of the first shaft body, and the guide slot communicates with the first open slot; the clutch lock block and the guide slot are in sliding fit.

[0022] In some examples, optionally further comprising: a third shaft body coaxially arranged with the first shaft body, an outer peripheral wall of the third shaft body having a third open slot, and the third open slot penetrating through the outer peripheral wall of the third shaft body in the axial direction; a second reset element generating a second reset force between the first shaft body and the third shaft body, the second reset force being used to drive the phase of the third open slot to align with the first open slot; wherein the second shaft body is arranged at a first end of the first shaft body, the third shaft body is arranged at a second end of the first shaft body, and the first end and the second end are opposite ends of the first shaft body, respectively; and: when the clutch lock block is embedded in the first open slot and the second open slot which are in phase alignment with each other, the clutch lock block is further embedded in the third open slot which is in phase alignment with the first open slot, and the clutch lock block further forms a surface contact with the slot wall of the third open slot, so that the clutch state between the first shaft body and the third shaft body is set to a closed state; when the clutch lock block is disengaged from the first open slot and the second open slot, the clutch lock block is further disengaged from the third open slot, so that the clutch state between the first shaft body and the third shaft body is released to an open state.

[0023] In some examples, optionally, the first shaft body has a first square hole; the second shaft body has a second square hole; the third shaft body has a third square hole; wherein a first square rod connected in transmission with a first handle is arranged in the second square hole, and a second square rod connected in transmission with a second handle is arranged in the third square hole; and either the first square rod and the second square rod are further arranged in the first square hole, or the first square rod and the second square rod are both arranged outside the first square hole.

[0024] In some examples, optionally, when the second open slot is in phase alignment with the first open slot, the second open slot communicates with the first open slot; when the third open slot is in phase alignment with the first open slot, the third open slot communicates with the first open slot; the clutch lock block comprises a lock block body for being embedded in a slot space formed by the first open slot, the second open slot and the third open slot, and forming a surface contact with the slot walls of the first open slot, the second open slot and the third open slot.

[0025] Another embodiment of a lock body comprises a clutch mechanism as described in the foregoing embodiments.

[0026] In some examples, optionally further comprising an opening and closing lock execution mechanism, wherein the first shaft body further has a linkage boss located on the outer peripheral wall of the first shaft body, and the linkage boss is used to drive the opening and closing lock execution mechanism.

[0027] Based on the above embodiments, the clutch lock block of the clutch mechanism can be in surface contact with the first opening slot of the first shaft body and the second opening slot of the second shaft body, so that the clutch state between the first shaft body and the second shaft body is set to the closed state. Thus, compared with the pin-based linear contact mode, the surface contact formed by the clutch lock block can improve the connection strength of the clutch mechanism in the closed state. Moreover, the contact area required for the surface contact between the clutch lock block and the first opening slot and the second opening slot can be ensured by the size in the axial direction, without having to rely on the size expansion in the radial direction as in the pin-based mode, thereby helping to reduce the radial space occupied by the clutch mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0028] The following drawings are only illustrative and explanatory of the present application, and do not limit the scope of the present application:

[0029] Figure 1 is an exploded structure diagram of the clutch mechanism in an embodiment of the present application;

[0030] Figure 2 is an assembled structure diagram of the clutch mechanism as shown in Figure 1 ;

[0031] Figure 3 is a partial cross-sectional view of Figure 2 ;

[0032] Figure 4 is an assembled structure diagram of the clutch mechanism as shown in Figure 1 ;

[0033] Figure 5 is a partial cross-sectional view of Figure 4 ;

[0034] Figure 6 is a first simplified structure diagram of the clutch mechanism as shown in Figure 1 ;

[0035] Figure 7 is a second simplified structure diagram of the clutch mechanism as shown in Figure 1 ;

[0036] Figure 8 is an example diagram of the shaft assembly structure in the clutch mechanism as shown in Figure 1 ;

[0037] Figure 9 is an assembly relationship diagram of the clutch lock block, the clutch push plate and the first shaft body in the clutch mechanism as shown in Figure 1 ;

[0038] Figure 10 For example Figure 1 A schematic diagram showing the assembly state of the clutch lock block and clutch push plate in the clutch mechanism;

[0039] Figure 11 For example Figure 1 The diagram shows the assembly state of the clutch locking block and the first shaft in the clutch mechanism.

[0040] Explanation of reference numerals in the attached figures

[0041] 10 First Axis

[0042] 11 First Opening Slot

[0043] 121 First positioning boss

[0044] 122 Second positioning boss

[0045] 13 First stop component

[0046] 15 First square hole

[0047] 16 Guide components

[0048] 161 Guide Plate

[0049] 162 Guide groove

[0050] 171 First Pillar

[0051] 172 Second Column

[0052] 18 First Linkage Boss

[0053] 19 Second Linkage Boss

[0054] 20 Second Axis

[0055] 21 Second opening slot

[0056] 22 First positioning slot

[0057] 23 Second stop component

[0058] 25 Second square hole

[0059] 27 First Receiving Tank

[0060] 28 First pusher slot

[0061] 30 Third axis

[0062] 31 Third opening slot

[0063] 32 Second positioning slot

[0064] 33 Third stop component

[0065] 35 third-party hole

[0066] 37 second accommodating groove

[0067] 38 second pulling post groove

[0068] 50 on-off lock block

[0069] 51 lock block body

[0070] 52 hooking member

[0071] 521 convex arm

[0072] 522 insertion post

[0073] 53 counterweight convex block

[0074] 60 on-off push plate

[0075] 600 arc-shaped sliding groove

[0076] 71 first reset element

[0077] 72 second reset element

[0078] 80 driving module

[0079] 81 cable

[0080] 82 joint DETAILED DESCRIPTION

[0081] To make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below with reference to the drawings and examples.

[0082] Figure 1 An exploded structural schematic diagram of the on-off mechanism in one embodiment of the present application. Figure 2 An assembled structural schematic diagram of the on-off mechanism in the on-off closed state. Figure 1 A partial sectional view of the on-off mechanism. Figure 3 An assembled structural schematic diagram of the on-off mechanism in the on-off disconnected state. Figure 2 A partial sectional view of the on-off mechanism. Figure 4 Figure 1 An assembled structural schematic diagram of the on-off mechanism in the on-off disconnected state. Figure 5 A partial sectional view of the on-off mechanism. Figure 4

[0083] Please refer to Figure 1 and simultaneously combine Figures 2 to 5 ​​In this embodiment, the clutch mechanism can be arranged in the lock body, and the clutch mechanism comprises a first shaft body 10, a second shaft body 20 and a third shaft body 30 coaxially arranged in the axial direction, wherein the second shaft body 20 can be arranged at the first end of the first shaft body 10, the third shaft body 30 can be arranged at the second end of the first shaft body 10, and the first end and the second end of the first shaft body 10 are opposite ends of the first shaft body 10.

[0084] In actual use, the axial direction of the first shaft body 10, the second shaft body 20 and the third shaft body 30 can be perpendicular to the direction of the door leaf.

[0085] In actual use, the first shaft body 10 can be in transmission connection with the unlocking execution mechanism of the lock body. For example, the outer peripheral wall of the first shaft body 10 can have a first linkage boss 18 and a second linkage boss 19 for transmission connection with the unlocking execution mechanism of the lock body. Among them, any one of the first linkage boss 18 and the second linkage boss 19 can be in transmission connection with the first part of the unlocking execution mechanism for driving the latch assembly, and the other one of the first linkage boss 18 and the second linkage boss 19 can be in transmission connection with the second part of the unlocking execution mechanism for driving the square tongue assembly. It can be understood that the main purpose of the first linkage boss 18 and the second linkage boss 19 is to provide the function of transmission connection between the first shaft body 10 and the unlocking execution mechanism, and the structure characteristics and driving mode of the unlocking execution mechanism itself are not limited in the embodiments of the present application. In addition, in order to limit the rotation stroke of the first shaft body 10 in the lock body, the outer peripheral wall of the first shaft body 10 can also have a first stop member 13, which can be used for limiting cooperation with the limiting structure corresponding to the first shaft body 10 in the lock body to limit the rotation stroke.

[0086] Moreover, in actual use, the second shaft body 20 can be in transmission connection with the first handle through a first square rod, and the third shaft body 30 can be in transmission connection with the second handle through a second square rod:

[0087] When the clutch state between the first shaft body 10 and the second shaft body 20 is in the disconnected state, the second shaft body 20 can rotate relative to the first shaft body 10 in response to the first operation force applied to the first handle, so as to produce the effect that the first handle idles and cannot trigger the unlocking execution mechanism to unlock through the first shaft body 10;

[0088] When the clutch state between the first shaft body 10 and the second shaft body 20 is in the closed state due to the unlocking verification, the second shaft body 20 can rotate synchronously with the first shaft body 10 in response to the first operation force applied to the first handle, so as to produce the effect that the first handle triggers the unlocking execution mechanism to unlock through the first shaft body 10;

[0089] When the clutching state between the first shaft body 10 and the third shaft body 30 is in the disengaged state, the third shaft body 30 can be rotated relative to the first shaft body 10 in response to the second operation force applied to the second handle to produce the effect of second handle idling and the inability of the first shaft body 10 to trigger the unlocking of the unlocking execution mechanism to unlock.

[0090] When the clutching state between the first shaft body 10 and the third shaft body 30 is in the disengaged state, the third shaft body 30 can be rotated relative to the first shaft body 10 in response to the second operation force applied to the second handle to produce the effect of second handle idling and the inability of the first shaft body 10 to trigger the unlocking of the unlocking execution mechanism to unlock.

[0091] Like the first stop member 13 of the first shaft body 10, the outer peripheral wall of the second shaft body 20 can have a second stop member 23, and the outer peripheral wall of the third shaft body 30 can have a third stop member 33, which are respectively used for limiting position cooperation with the limiting structure correspondingly arranged in the lock body to restrict the rotation stroke of the second shaft body 20 and the third shaft body 30.

[0092] In actual use, each of the first handle and the second handle can be a rotary handle or a push-pull handle configured with a push-pull module, and any one of the first handle and the second handle can be an outer handle located on the outer side of the door leaf, and the other one of the first handle and the second handle can be an inner handle located on the inner side of the door leaf, that is, in this embodiment, the second shaft body 20 and the third shaft body 30 with switchable clutching state are arranged at opposite ends of the first shaft body 10, in order to support the reversal adaptation of the inner side of the door leaf and the outer side of the door leaf for the installation direction of the lock body applying the clutching mechanism, that is, any side of the lock body can be towards the inner side of the door leaf or the outer side of the door leaf.

[0093] In addition, for the inner handle on the inner side of the door leaf, there can be a need to exempt from the unlocking verification, if so:

[0094] When the first handle connected with the second shaft body 20 through the first square rod is an inner handle, the first square rod can be further connected with the first shaft body 10, at this time, even if the clutching state between the first shaft body 10 and the second shaft body 20 is in the disengaged state, the first shaft body 10 and the second shaft body 20 can still be normally placed in synchronous rotation by the first square rod, and the clutching state between the first shaft body 10 and the third shaft body 30 is in the disengaged state, allowing the first shaft body 10 and the third shaft body 30 to rotate relative to each other;

[0095] When the second handle drivenly connected with the third shaft body 30 through the second rod is an inside handle, the second rod can be further connected with the first shaft body 10, at this time, even if the disengagement state between the first shaft body 10 and the third shaft body 30 is in a disconnected state, the first shaft body 10 and the third shaft body 30 can still be normally placed by the second rod to be synchronously rotatable, and the disengagement state between the first shaft body 10 and the second shaft body 20 in the disconnected state is to allow the first shaft body 10 and the second shaft body 20 to rotate relatively.

[0096] For example, the first shaft body 10 can have a first square hole 15, the second shaft body 20 can have a second square hole 25, and the third shaft body 30 can have a third square hole 35, wherein the first square rod drivenly connected with the first handle is arranged in the second square hole 25, the second square rod drivenly connected with the second handle is arranged in the third square hole 35, and:

[0097] Any one of the first square rod and the second square rod can be further arranged in the first square hole 15 of the first shaft body 10, so that the corresponding one of the second shaft body 20 and the third shaft body 30 can be synchronously rotatable with the first shaft body 10 in the disconnected state of the disengagement state, and the other one can rotate relative to the first shaft body 10 in the disconnected state of the disengagement state; or the first square rod and the second square rod can both avoid the first square hole 15 of the first shaft body 10, so that each of the second shaft body 20 and the third shaft body 30 can rotate relative to the first shaft body 10 in the disconnected state of the disengagement state.

[0098] It can be understood that if the mounting direction of the lock body does not need to support the reversing adaptation of the inner side of the door leaf and the outer side of the door leaf, the disengagement mechanism can also only include the first shaft body 10 and the second shaft body 20, or only include the first shaft body 10 and the third shaft body 30.

[0099] Figure 6 For the first simplified structure diagram of the disengagement mechanism as shown in Figure 1 For the second simplified structure diagram of the disengagement mechanism as shown in Figure 7 For the second simplified structure diagram of the disengagement mechanism as shown in Figure 1 , wherein, Figure 6 It is shown that the disengagement mechanism only includes the first shaft body 10 and the second shaft body 20 due to the need for the lock body to support the reversing adaptation, at this time, the first shaft body 10 can be drivenly connected with the second handle through the second square rod arranged in the first square hole 15 in addition to being drivenly connected with the unlocking execution mechanism of the lock body, and the second shaft body 20 can still be drivenly connected with the first handle through the first square rod; Figure 7The clutch mechanism is shown in the middle of the figure, which only includes the first shaft body 10 and the third shaft body 30 because it does not need to support the reversing adapter of the lock body. At this time, the first shaft body 10 can be connected with the first handle through the first square rod provided in the first square hole 15 in addition to the transmission connection with the unlocking execution mechanism of the lock body, and the third shaft body 30 can still be connected with the second handle through the second square rod.

[0100] Moreover, by Figure 6 and Figure 7 Comparison, the essential role of the second shaft body 20 and the third shaft body 30 is basically the same, which is to be connected with the handle through the square rod, so the serial numbers of "second" and "third" used in the naming of the second shaft body 20 and the third shaft body 30 can be interchanged.

[0101] Please refer back to Figure 1 and at the same time Figures 2 to 5 In order to realize the switching of the clutch state, the clutch mechanism in this embodiment further includes a clutch lock block 50 and a clutch push plate 60, and:

[0102] The outer peripheral wall of the first shaft body 10 has a first open slot 11, and the first open slot 11 can penetrate the outer peripheral wall of the first shaft body 10 in the axial direction;

[0103] The outer peripheral wall of the second shaft body 20 has a second open slot 21, and the second open slot 21 can penetrate the outer peripheral wall of the second shaft body 20 in the axial direction;

[0104] The outer peripheral wall of the third shaft body 20 has a third open slot 31, and the third open slot 31 can penetrate the outer peripheral wall of the third shaft body 30 in the axial direction.

[0105] The clutch push plate 60 is used to translate in the radial direction of the first shaft body 10 in response to a driving force, and the translation of the clutch push plate 60 includes feeding towards the first shaft body 10 and retreating away from the first shaft body 10, wherein the driving force can be triggered in response to the authentication success event of the unlocking authentication.

[0106] For example, the clutch mechanism in this embodiment can include a drive module 80, which can include a housing, a power element such as a motor inside the housing, and a transmission assembly such as a speed reducer inside the housing. The power element can generate a driving force, and the driving force generated by the power element in response to the authentication success event of the unlocking authentication can be applied to the clutch push plate 60 through the transmission assembly, thereby driving the clutch push plate 60 to generate the translation of feeding or retreating.

[0107] In this embodiment, the power element is powered by an external power source, i.e., the driving module 80 can further include a cable 81 and a connector 82 at the end of the cable 81, which is used to connect to the power supply interface of the external power source, so that the power provided by the external power source is supplied to the power element in the driving module 80 through the cable 81, and the connector 82 can be further used to connect to the signal interface integrated with the power supply interface of the external power source, so that the external control signal can be supplied to the power element in the driving module 80 through the cable 81.

[0108] However, it can be understood that the embodiment does not exclude the scheme of deploying a self-powered power source such as a battery in the driving module 80. Even if a self-powered power source such as a battery is deployed in the driving module 80, the cable 81 and the connector 82 at the end of the cable 81 can still be retained, in which case the connector 82 can be used only to connect to the signal interface of the external control device.

[0109] The clutch lock block 50 is configured to:

[0110] When the clutch lock block 50 is pushed by the clutch push plate 60 to be embedded in the first opening slot 11, the second opening slot 21 and the third opening slot 31 with the phases aligned with each other, the clutch lock block 50 forms a surface contact with the slot walls of the first opening slot 11, the second opening slot 21 and the third opening slot 31, so that the clutch state between the first shaft body 10 and the second shaft body 20, and the clutch state between the first shaft body 10 and the third shaft body 30 are both set to a closed state, at this time, even if the clutch state between the first shaft body 10 and the second shaft body 20 is normally set to a closed state by the first rod, or the clutch state between the first shaft body 10 and the third shaft body 30 is normally set to a closed state by the second rod, it will not hinder the embedding of the clutch lock block 50 in the first opening slot 11, the second opening slot 21 and the third opening slot 31;

[0111] When the clutch lock block 50 is disengaged from the first opening slot 11, the second opening slot 21 and the third opening slot 31, the clutch state between the first shaft body 10 and the second shaft body 20, and the clutch state between the first shaft body 10 and the third shaft body 30 are both released to an open state, at this time, if the first shaft body 10 and the second shaft body 20 are normally connected by the first rod, or the first shaft body 10 and the third shaft body 30 are connected by the second rod, the first shaft body 10 and the second shaft body 20 can be allowed to rotate synchronously, or the first shaft body 10 and the third shaft body 30 can be allowed to rotate synchronously.

[0112] For example, as shown in FIG. 6, the first shaft body 10 and the second shaft body 20 are connected by the first rod, and the first shaft body 10 and the third shaft body 30 are connected by the second rod, so that the first shaft body 10 and the second shaft body 20 can be allowed to rotate synchronously, or the first shaft body 10 and the third shaft body 30 can be allowed to rotate synchronously. Figure 6The simplified structure shown is such that the first shaft 10 can be driven to the unlocking mechanism of the lock body and driven to the second handle via the second square bar; the second shaft 20 can be driven to the first handle via the first square bar; and the clutch block 50 can be configured as follows:

[0113] When the clutch locking block 50 is pushed and embedded in the first opening groove 11, the second opening groove 21 and the third opening groove 31 with their phases aligned by the feed clutch push plate 60, the clutch locking block 50 forms surface contact with the groove walls of the first opening groove 11 and the second opening groove 21, so that the clutch state between the first shaft 10 and the second shaft 20 is set to the closed state.

[0114] When the clutch locking block 50 disengages from the first opening slot 11 and the second opening slot 21, the clutch state between the first shaft 10 and the second shaft 20 is released to the disengaged state.

[0115] That is, such as Figure 1 The structure shown can be viewed as relative to, for example Figure 6 The simplified structure shown further includes a third shaft 30, and:

[0116] When the clutch locking block 50 is embedded in the first opening slot 11 and the second opening slot 21 that are aligned with each other in phase, the clutch locking block 50 is further embedded in the third opening slot 31 that is aligned with the first opening slot 11 in phase, and the clutch locking block 50 further forms surface contact with the slot wall of the third opening slot 31, so that the clutch state between the first shaft 10 and the third shaft 30 is set to the closed state.

[0117] When the clutch locking block 50 is pulled away from the first opening slot 11 and the second opening slot 21 by the retracting clutch push plate 60, the clutch locking block 50 further disengages from the third opening slot 31, so that the clutch state between the first shaft 10 and the third shaft 30 is released to the disengaged state.

[0118] For example Figure 7 The simplified structure shown is based on the principle of... Figure 6 The simplified structure shown is essentially the same and will not be described in detail again.

[0119] Based on the above embodiments, the clutch locking block 50 of the clutch mechanism can make the clutch state between the first shaft 10 and the second shaft 20, and / or the clutch state between the first shaft 10 and the third shaft 30, a closed state by making surface contact with the first opening slot 11 of the first shaft 10, the second opening slot 21 of the second shaft 20 and / or the third opening slot 31 of the third shaft 30. Thus, compared with the line contact method based on pins, the surface contact formed by the clutch locking block 50 can improve the connection strength of the clutch mechanism in the closed state.

[0120] Moreover, the contact area required for the face contact of the clutch lock block 50 with the first open slot 11, and the second open slot 21 and / or the third open slot 31 can be ensured by the dimension in the axial direction, without having to rely on the expansion of the dimension in the radial direction as in the case of using a pin, thereby helping to reduce the radial space occupied by the clutch mechanism.

[0121] As mentioned before, the face contact of the clutch lock block 50 with the first open slot 11, and the second open slot 21 and / or the third open slot 31 in the form of the embedded fit requires the phase alignment of the first open slot 11, and the second open slot 21 and / or the third open slot 31, and therefore, in the clutch mechanism of this embodiment, a reset mechanism for facilitating the phase alignment of the first open slot 11, and the second open slot 21 and / or the third open slot 31 can be further provided, please refer to Figure 1 and Figure 6 and Figure 7 :

[0122] In the case of the clutch mechanism as shown in Figure 1 and Figure 6 , the clutch mechanism can further include a first reset element 71, which can generate a first reset force between the first shaft body 10 and the second shaft body 20, the first reset force being used to drive the phase alignment of the second open slot 21 with the first open slot 11.

[0123] In the case of the clutch mechanism as shown in Figure 1 and Figure 7 , the clutch mechanism can further include a second reset element 72, which can generate a second reset force between the first shaft body 10 and the third shaft body 30, the second reset force being used to drive the phase alignment of the third open slot 31 with the first open slot 11.

[0124] Figure 8 An example schematic diagram of the shaft assembly structure in the clutch mechanism as shown in Figure 1 . Please refer to Figure 8 , taking the example of the clutch mechanism including the first shaft body 10, the second shaft body 20 and the third shaft body 30, and the first reset element 71 and the second reset element 72 both being selected as springs, the end face of the first end of the first shaft body 10 can have a first push rod 171 protruding in the axial direction, and the end face of the second end of the first shaft body 10 can have a second push rod 172 protruding in the axial direction.

[0125] Correspondingly, the end face of the second shaft body 20 towards the first shaft body 10 can have a first accommodating groove 27 for arranging the first reset element 71 (e.g. the first spring), which can be arc-shaped curved around the axis direction, so that the first reset element 71 (e.g. the first spring) can be arranged in the first accommodating groove 27 in a curved state, and the end face of the second shaft body 20 towards the first shaft body 10 further has a first dial post groove 28 at one end of the first accommodating groove 27.

[0126] When the first opening groove 11 of the first shaft body 10 is phase-aligned with the second opening groove 21 of the second shaft body 20, the first dial post 171 of the first shaft body 10 is located in the first dial post groove 28;

[0127] When the second shaft body 20 rotates relative to the first shaft body 10 in response to the first operation force applied to the first handle, or when the first shaft body 10 rotates relative to the second shaft body 20 in response to the second operation force applied to the second handle, there is a phase offset between the first opening groove 11 of the first shaft body 10 and the second opening groove 21 of the second shaft body 20, and the first dial post 171 of the first shaft body 10 can move from the first dial post groove 28 to the first accommodating groove 27 to press the first reset element 71 (e.g. the first spring);

[0128] In response to the disappearance of the first operation force or the second operation force that causes the phase offset, the elastic force generated by the pressed first reset element 71 (e.g. the first spring) can drive the first dial post 171 to return from the first accommodating groove 27 to the first dial post groove 28, and the return of the first dial post 171 can promote the reset rotation of the second shaft body 20 relative to the first shaft body 10, so that the first opening groove 11 of the first shaft body 10 and the second opening groove 21 of the second shaft body 20 are restored to the phase-aligned state.

[0129] Similarly, the end face of the third shaft body 30 towards the first shaft body 10 can have a second accommodating groove 37 for arranging the second reset element 72 (e.g. the second spring), which can be arc-shaped curved around the axis direction, so that the second reset element 72 (e.g. the second spring) can be arranged in the second accommodating groove 37 in a curved state, and the end face of the third shaft body 30 towards the first shaft body 10 further has a second dial post groove 38 at one end of the second accommodating groove 37.

[0130] When the first opening groove 11 of the first shaft body 10 is phase-aligned with the third opening groove 31 of the third shaft body 30, the second dial post 172 of the first shaft body 10 is located in the second dial post groove 38;

[0131] When the third shaft body 30 rotates relative to the first shaft body 10 in response to the second operation force applied to the second handle, or when the first shaft body 10 rotates relative to the second shaft body 20 in response to the first operation force applied to the first handle, the first opening slot 11 of the first shaft body 10 and the third opening slot 31 of the third shaft body 30 have a phase offset, and the second shifting post 172 of the first shaft body 10 can be pressed from the second shifting post slot 38 to the second accommodating slot 37 to press the second reset element 72 (e.g., the second spring);

[0132] In response to the disappearance of the first operation force or the second operation force that causes the phase offset, the elastic force generated by the pressed second reset element 72 (e.g., the second spring) can drive the second shifting post 172 to return from the second accommodating slot 37 to the second shifting post slot 38, and the return of the second shifting post 172 can promote the reset rotation of the third shaft body 30 relative to the first shaft body 10, so that the first opening slot 11 of the first shaft body 10 and the third opening slot 31 of the third shaft body 30 are restored to a phase-aligned state.

[0133] Still referring to Figure 8 , and combining Figure 1 and Figure 6 and Figure 7 :

[0134] For the clutch mechanism including the second shaft body 20 as shown in Figure 1 and Figure 6 , in order to limit the phase stroke of the relative rotation between the first shaft body 10 and the second shaft body 20, the end face of the first end of the first shaft body 10 can further have a first positioning boss 121, and the end face of the first shaft body 10 towards the second shaft body 20 can further have a first positioning slot 22, which can be in an arc shape curved around the axis direction, and the first positioning boss 121 can be in sliding fit with the first positioning slot 22, so that the phase stroke of the relative rotation between the first shaft body 10 and the second shaft body 20 can be constrained within the range of the sliding fit of the first positioning boss 121 and the first positioning slot 22;

[0135] For the clutch mechanism including the third shaft body 30 as shown in Figure 1 and Figure 7 , in order to limit the phase stroke of the relative rotation between the first shaft body 10 and the third shaft body 30, the end face of the second end of the first shaft body 10 can further have a second positioning boss 122, and the end face of the third shaft body 30 towards the first shaft body 10 can further have a second positioning slot 32, which can be in an arc shape curved around the axis direction, and the second positioning boss 122 can be in sliding fit with the second positioning slot 32, so that the phase stroke of the relative rotation between the first shaft body 10 and the third shaft body 30 can be constrained within the range of the sliding fit of the second positioning boss 122 and the second positioning slot 32.

[0136] As Figure 8 indicated in the spring-based example assembly structure, only an example way that can support the reset rotation and stroke limiting between the first shaft body 10 and the second shaft body 20 and / or the third shaft body 30 is exemplarily illustrated for the convenience of understanding, and it can be understood that such an assembly structure should not be considered as being limited to the structure as Figure 8 indicated. For example, at least one of the first reset element 71 and the second reset element 72 can also be selected as a torsion spring, and correspondingly, by setting a structure for limiting the foot of the torsion spring, the reset rotation between the first shaft body 10 and the second shaft body 20 and / or the third shaft body 30 can also be achieved. For another example, the sliding fit mode of the boss and the groove set on the end face for stroke limiting can also be replaced by other forms of structures set on the outer peripheral wall.

[0137] In addition to the technical effect of helping to reduce the occupied radial space while ensuring the connection strength, the clutch mechanism in the embodiments of the present application can also have the technical effect of improving safety through other improvements.

[0138] The improvement of safety described herein is relative to the pin mode. Specifically, for the case of using a pin as a connection element for clutch switching, when the clutch state is in the open state, the pin is only constrained by the elastic reset force urging it to exit the shaft body, but if the lock body where the clutch mechanism is located is subjected to external vibration such as knocking, and the external vibration can make the pin produce a movement that overcomes the constraint of the elastic reset force, then the moving pin may mistakenly enter the pin hole of the sleeve portion of the two shaft bodies, thereby causing the clutch state to mistakenly switch from the open state to the closed state. Even if such a mistaken switching is temporary, as long as the operating force is continuously applied to the handle during the period when the pin frequently moves, it is still possible to cause the lock body to be mistakenly unlocked, and further cause the lock body to have the security risk of being mistakenly unlocked.

[0139] In the embodiments of the present application, in addition to replacing the pin with the clutch lock block 50 as the connection element for clutch switching, the position of the clutch lock block 50 in the radial direction of the first shaft body 10 can be constrained to be synchronized with the clutch push plate 60, that is, the clutch lock block 50 is not only pushed and embedded in the first opening groove 11, and the second opening groove 21 and / or the third opening groove 31 by the feeding clutch push plate 60, but also can be pulled out of the first opening groove 11, and the second opening groove 21 (as Figure 1 or Figure 6 indicated) and / or the third opening groove 31 (as Figure 1 or Figure 7(as shown in the example), and during the period when the clutch is in the disengaged state, the retracting clutch push plate 60 maintains a continuous traction state on the clutch lock block 50.

[0140] As can be seen, since the position of the clutch locking block 50 in the radial direction of the first shaft 10 is constrained to be synchronized with the clutch push plate 60, when the clutch state is in the disengaged state, the constraint on the clutch locking block 50 in the radial direction can prevent the clutch locking block 50 from moving due to external vibration. This can prevent the clutch state from being switched from the disengaged state to the closed state due to the movement of the connecting element (i.e., the clutch locking block 50), thereby eliminating the safety hazard of accidental unlocking of the lock body.

[0141] Figure 9 For example Figure 1 The diagram shows the assembly relationship between the clutch locking block, the clutch push plate, and the first shaft in the clutch mechanism. Figure 10 For example Figure 1 The diagram shows the assembly state of the clutch lock block and clutch push plate in the clutch mechanism. Figure 11 For example Figure 1 The diagram shows the assembly state of the clutch locking block and the first shaft in the clutch mechanism.

[0142] Please refer to [the website / information] first. Figure 9 and Figure 10 In the embodiments of this application, regardless of whether the clutch mechanism includes one of the first shaft 10, the second shaft 20, and the third shaft 30, or includes the first shaft 10, the second shaft 20, and the third shaft 30 simultaneously, in order to constrain the position of the clutch locking block 50 in the radial direction of the first shaft 10 to be synchronized with the clutch push plate 60, the clutch push plate 60 may have an arc-shaped groove 600.

[0143] The clutch locking block 50 can be mounted on the clutch push plate 60 via the arc-shaped slide groove 600, and the arc-shaped slide groove 600 forms a limiting constraint on the clutch locking block 50 in the radial direction of the first shaft 10, so that when the clutch locking block 50 is embedded in the first opening groove 11, the second opening groove 21 and / or the third opening groove 31 that are aligned with each other:

[0144] The center of the arc-shaped groove 600 coincides with the axis of the first shaft 10, so as to allow the clutch lock block 50 to swing with the synchronous rotation of the second shaft 20 and the first shaft 10, and / or the synchronous rotation of the third shaft 30 and the first shaft 10.

[0145] In order to adapt to the arc-shaped slide groove 600 of the clutch push plate 60 so as to realize the clutch lock block 50 on the clutch push plate 60 through the arc-shaped slide groove 600, the clutch lock block 50 may include a lock block body 51 and a hook member 52.

[0146] The locking block body 51 is used to be embedded in a first opening slot 11, a second opening slot 21, and / or a third opening slot 31 that are aligned with each other in phase, wherein the "and / or" here is intended to mean:

[0147] For example Figure 1 In the case where the clutch mechanism shown includes a second shaft 20 and a third shaft 30, the locking block body 51 is used to be embedded in the first opening groove 11, the second opening groove 21 and the third opening groove 31 that are aligned with each other in phase. For example, the second opening groove 21 can communicate with the first opening groove 11 when it is aligned in phase with the first opening groove 11, and the third opening groove 31 can communicate with the first opening groove 11 when it is aligned in phase with the first opening groove 11. The locking block body 51 is used to be embedded in the groove space formed by the communication of the first opening groove 11, the second opening groove 21 and the third opening groove 31, and to form surface contact with the groove walls of the first opening groove 11, the second opening groove 21 and the third opening groove 31. At this time, the dimension of the locking block body 51 in the axial direction is not less than the sum of the groove lengths of the first opening groove 11, the second opening groove 21 and the third opening groove 31 in the axial direction.

[0148] for Figure 6 The clutch mechanism shown includes a second shaft 20 but does not include a third shaft 30. The locking block body 51 is used to be embedded in the first opening groove 11 and the second opening groove 21 that are phase aligned. For example, the second opening groove 21 can communicate with the first opening groove 11 when it is phase aligned with the first opening groove 11. The locking block body 51 is used to be embedded in the groove space formed by the communication between the first opening groove 11 and the second opening groove 21 and to form surface contact with the groove walls of the first opening groove 11 and the second opening groove 21. At this time, the dimension of the locking block body 51 in the axial direction is not less than the sum of the groove lengths of the first opening groove 11 and the second opening groove 21 in the axial direction.

[0149] For example Figure 7 The clutch mechanism shown includes a third shaft 30, but does not include the third shaft 30. The locking block body 51 is used to be embedded in the phase-aligned first opening groove 11 and third opening groove 31. For example, when the third opening groove 31 is phase-aligned with the first opening groove 11, it can communicate with the first opening groove 11. The locking block body 51 is used to be embedded in the groove space formed by the communication between the first opening groove 11 and the third opening groove 31 and to form surface contact with the groove walls of the first opening groove 11 and the third opening groove 31. At this time, the dimension of the locking block body 51 in the axial direction is not less than the sum of the groove lengths of the first opening groove 11 and the third opening groove 31 in the axial direction.

[0150] In order to make the shape of the lock block body 51 regular, the width of the first opening groove 11, the second opening groove 21 and the third opening groove 31 in the rotation direction can be set to be the same.

[0151] The hooking member 52 can be arranged in the arc-shaped sliding groove 600, wherein the arc-shaped sliding groove 600 forms a limiting constraint on the hooking member 52 in the radial direction, and:

[0152] When the center of the arc-shaped sliding groove 600 coincides with the axis of the first shaft body 10, the hooking member 52 can slide in the arc-shaped sliding groove 600 in response to the swinging of the clutching lock block 50 with the synchronous rotation of the second shaft body 20 and the first shaft body 10, and / or the synchronous rotation of the third shaft body 30 and the first shaft body 10, and keep the limiting constraint of the arc-shaped sliding groove 600 in the radial direction.

[0153] For example, the hooking member 52 can include a convex arm 521 and a plug column 522, wherein the convex arm 521 protrudes outward from the lock block body 51, and the plug column 522 is located at the arm end of the convex arm 521 and is inserted in the arc-shaped sliding groove 600, and correspondingly, the plug column 522 can be in sliding fit with the arc-shaped sliding groove 600, and the arc-shaped sliding groove 600 can form a limiting constraint on the plug column 522 in the radial direction.

[0154] In addition, from Figure 9 and Figure 10 It can also be seen that the lock block body 51 is located on the outer side of the clutching push plate 60 towards the first shaft body 10 (i.e. the feeding side of the clutching push plate 60), and the hooking member 52 can be located at one end of the lock block body 51 in the axial direction. Therefore, when the clutching push plate 60 is fed, both the lock block body 51 and the hooking member 52 can be subjected to the pushing force generated by the feeding of the clutching push plate 60, but when the clutching push plate 60 is retracted, only the hooking member 52 located at one end of the lock block body 51 can be subjected to the pulling force generated by the retraction of the clutching push plate 60, thereby possibly causing the lock block body 51 to tilt when it is separated from the retracting clutching push plate 60.

[0155] In actual use, as described above, the axial direction of the first shaft body 10, the second shaft body 20 and the third shaft body 30 can be the direction perpendicular to the door leaf, and the moving direction of the feeding or retraction of the clutching push plate 60 can be parallel to the door leaf. Based on such directional arrangement, in the embodiment of the present application, the feeding direction of the clutching push plate 60 can be arranged in the vertically upward direction, and the retraction direction of the clutching push plate 60 can be arranged in the vertically downward direction, and the clutching lock block 50 can further include a counterweight protrusion 53 located at the other end of the lock block body 51 in the axial direction, so that when the clutching push plate 50 is retracted, although only the hooking member 52 located at one end of the lock block body 51 can be subjected to the vertically downward pulling force generated by the retraction of the clutching push plate 60, the vertically downward gravitational compensation of the counterweight protrusion 53 at the other end of the lock block body 51 can balance the forces at both ends of the lock block body 51, thereby reducing or even avoiding the tilting of the lock block body 51 when it is separated from the retracting clutching push plate 60.

[0156] Please see again Figure 9 and in combination with Figure 11 In the embodiments of the present application, whether the clutching mechanism includes the first shaft body 10 and one of the second shaft body 20 and the third shaft body 30, or includes the first shaft body 10 and the second shaft body 20 and the third shaft body 30 at the same time, in order to make the movement of the clutching lock block 50 more stable and accurate, the first shaft body 10 can also have a guide member 16.

[0157] Correspondingly, the clutching lock block 50 can be in sliding fit with the guide member 16, wherein the guide member 16 is used to make the movement path of the clutching lock block 50 with the feeding and retreating of the clutching push plate 60 all align with the first opening slot 11, and based on the first return force generated by the first return element 71 and the second return force generated by the second return element 72, the clutching lock block 50 aligned with the first opening slot 11 can also be aligned with the second opening slot 21 and / or the third opening slot 31 at the same time, which are phase-aligned with the first opening slot 11.

[0158] For example, the guide member 16 can include a guide plate 161 and a guide groove 162, wherein the guide plate 161 can protrude outward from the outer peripheral wall of the first shaft body 10, the guide groove 162 can be arranged in the radial direction of the first shaft body 10 on the guide plate 161, and the guide groove 162 can be in communication with the first opening slot 11; correspondingly, the clutching lock block 50 (for example, the lock block body 51) can be in sliding fit with the guide groove 162.

[0159] In another embodiment of the present application, a lock body is also provided, which can include the clutching mechanism in the foregoing embodiments.

[0160] Further, the lock body can also include a lock opening execution mechanism, wherein the first shaft body 10 also has a linkage boss (for example, at least one of the first linkage boss 18 and the second linkage boss 19), which is located on the outer peripheral wall of the first shaft body 10, and is used to be in transmission fit with the lock opening execution mechanism.

[0161] The above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A clutching mechanism characterized by, Comprise: a first shaft body (10), an outer peripheral wall of the first shaft body (10) has a first linkage boss (18) and a second linkage boss (19) for transmission connection with a lock body unlocking execution mechanism, the outer peripheral wall of the first shaft body (10) further has a first open slot (11), and the first open slot (11) penetrates the outer peripheral wall of the first shaft body (10) along the axial direction of the first shaft body (10); a second shaft body (20), the second shaft body (20) is coaxially arranged with the first shaft body (10), an outer peripheral wall of the second shaft body (20) has a second open slot (21), and the second open slot (21) penetrates the outer peripheral wall of the second shaft body (20) along the axial direction of the second shaft body (20); a first reset element (71), the first reset element (71) generates a first reset force between the first shaft body (10) and the second shaft body (20), the first reset force is used to drive the phase of the second open slot (21) to align with the first open slot (11); a clutch push plate (60), the clutch push plate (60) is used to translate along the radial direction of the first shaft body (10) in response to a driving force, the translation includes feeding towards the first shaft body (10) and retreating away from the first shaft body (10); a clutch lock block (50), wherein: when the clutch lock block (50) is pushed by the clutch push plate (60) fed and embedded in the first open slot (11) and the second open slot (21) which are phase-aligned with each other, the clutch lock block (50) forms a surface contact with the slot wall of the first open slot (11) and the second open slot (21), so that the clutch state between the first shaft body (10) and the second shaft body (20) is set to a closed state; when the clutch lock block (50) is disengaged from the first open slot (11) and the second open slot (21), the clutch state between the first shaft body (10) and the second shaft body (20) is released to an open state; wherein the clutch push plate (60) has an arc-shaped sliding groove (600), the clutch lock block (50) includes a lock block body (51) and a hooking member (52), the lock block body (51) is used to be embedded in the first open slot (11) and the second open slot (21) which are phase-aligned with each other and forms a surface contact with the slot wall of the first open slot (11) and the second open slot (21), the hooking member (52) is arranged in the arc-shaped sliding groove (600), the arc-shaped sliding groove (600) forms a limiting constraint on the hooking member (52) in the radial direction of the first shaft body (10), and when the center of the arc-shaped sliding groove (600) coincides with the axis of the first shaft body (10), the hooking member (52) slides in the arc-shaped sliding groove (600) in response to the swing of the clutch lock block (50) and keeps the arc-shaped sliding groove (600) forming a limiting constraint on the clutch lock block (50) in the radial direction of the first shaft body (10).

2. The clutching mechanism according to claim 1, wherein a position of the clutching lock block (50) in a radial direction of the first shaft body (10) is constrained to be synchronous with the clutching push plate (60). The clutching lock block (50) is disengaged from the first opening slot (11) and the second opening slot (21) by traction of the retracted clutching push plate (60).

3. The clutching mechanism according to claim 1, wherein the arc-shaped sliding groove (600) forms the limiting constraint for the clutching lock block (50) in the radial direction of the first shaft body (10) to coincide the center of the arc-shaped sliding groove (600) with the axis of the first shaft body (10) when the clutching lock block (50) is embedded in the first opening slot (11) and the second opening slot (21) with the same phase, so as to allow the clutching lock block (50) to swing with the synchronous rotation of the second shaft body (20) and the first shaft body (10).

4. The clutching mechanism according to claim 3, wherein the hooking member (52) comprises a protruding arm (521) and a plug column (522). The protruding arm (521) protrudes laterally from the lock block body (51). The plug column (522) is located at an arm end of the protruding arm (521) and is inserted in the arc-shaped sliding groove (600), the plug column (522) is in sliding fit with the arc-shaped sliding groove (600), and the arc-shaped sliding groove (600) generates the limiting constraint for the plug column (522) in the radial direction of the first shaft body (10).

5. The clutching mechanism according to claim 1, wherein the first shaft body (10) further comprises a guide member (16). The clutching lock block (50) is in sliding fit with the guide member (16). The guide member (16) is used to align the moving path of the clutching lock block (50) with the first opening slot (11) with the feeding and retraction of the clutching push plate (60).

6. The clutching mechanism according to claim 5, wherein the guide member (16) comprises a guide plate (161) and a guide slot (162), the guide plate (161) protrudes outward from the outer peripheral wall of the first shaft body (10), the guide slot (162) is provided in the guide plate (161) in the radial direction of the first shaft body (10), and the guide slot (162) is in communication with the first opening slot (11). The clutching lock block (50) is in sliding fit with the guide slot (162). Further comprising: A third shaft body (30) coaxially arranged with the first shaft body (10), the outer peripheral wall of the third shaft body (30) has a third opening slot (31), and the third opening slot (31) penetrates through the outer peripheral wall of the third shaft body (30) in the axial direction of the third shaft body (30). ​ ​ ​ 7. The clutching mechanism of claim 1, wherein, ​ ​ A second reset element (72) generates a second reset force between the first shaft body (10) and the third shaft body (30), the second reset force being used to drive the phase of the third open slot (31) to align with the first open slot (11); Wherein, the second shaft body (20) is installed at the first end of the first shaft body (10), the third shaft body (30) is installed at the second end of the first shaft body (10), and the first end and the second end are opposite ends of the first shaft body (10) respectively, and: When the clutch lock block (50) is embedded in the first open slot (11) and the second open slot (21) which are phase-aligned, the clutch lock block (50) is further embedded in the third open slot (31) which is phase-aligned with the first open slot (11), and the clutch lock block (50) further forms a surface contact with the slot wall of the third open slot (31), so that the clutch state between the first shaft body (10) and the third shaft body (30) is set to a closed state; When the clutch lock block (50) is disengaged from the first open slot (11) and the second open slot (21), the clutch lock block (50) is further disengaged from the third open slot (31), so that the clutch state between the first shaft body (10) and the third shaft body (30) is released to a disconnected state.

8. The clutch mechanism according to claim 7, wherein: The first shaft body (10) has a first square hole (15); The second shaft body (20) has a second square hole (25); The third shaft body (30) has a third square hole (35); Wherein, the second square hole (25) is provided with a first square rod connected in transmission with a first handle, and the third square hole (35) is provided with a second square rod connected in transmission with a second handle; And, either the first square rod or the second square rod is further provided in the first square hole (15), or both the first square rod and the second square rod are avoided outside the first square hole (15).

9. The clutch mechanism according to claim 7, wherein: When the second open slot (21) is phase-aligned with the first open slot (11), the second open slot (21) is in communication with the first open slot (11); When the third open slot (31) is phase-aligned with the first open slot (11), the third open slot (31) is in communication with the first open slot (11); The lock block body (51) is used to be embedded in the slot space formed by the communication of the first open slot (11), the second open slot (21) and the third open slot (31), and forms a surface contact with the slot walls of the first open slot (11), the second open slot (21) and the third open slot (31).

10. A lock body characterized by, The clutch mechanism as claimed in any one of claims 1 to 9.

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