CN211974647U

CN211974647U - Electronic lock clutch

Info

Publication number: CN211974647U
Application number: CN202020317753.6U
Authority: CN
Inventors: 兰志明
Original assignee: Bull Group Co Ltd
Current assignee: Ningbo Bull Intelligent Technology Co ltd
Priority date: 2020-03-13
Filing date: 2020-03-13
Publication date: 2020-11-20
Anticipated expiration: 2030-03-13

Abstract

The utility model discloses an electronic lock clutch relates to intelligent furniture technical field, and the security is higher, simple structure, and the cost is lower. The utility model discloses an electronic lock clutch, which comprises a driving disc, a rotating disc, a clutch block and an elastic reset piece, wherein one side of the driving disc is provided with a handle connecting part, and the other side is provided with an annular flange; one side of the rotating disc is provided with a lock body connecting part, the other side of the rotating disc is provided with a rotating boss, the rotating boss is positioned in the annular flange and can rotate along the inner side surface of the annular flange, and the rotating boss is provided with a clamping groove; the clutch block comprises a fixed part, a clamping part and a counterweight part, the fixed part is rotationally connected to the driving disc, the annular flange is provided with an avoiding opening corresponding to the clutch block, and the clamping part can be clamped with the clamping groove by rotating the clutch block; the counterweight part and the clamping part are symmetrically arranged relative to the fixing part; one end of the elastic reset piece is fixed on the clamping portion, the other end of the elastic reset piece is fixed on the driving disc, and when the elastic reset piece is in a natural state, the clamping portion is separated from the clamping groove. The utility model is used for the electronic lock.

Description

Electronic lock clutch

Technical Field

The utility model relates to an intelligence furniture technical field especially relates to an electronic lock clutch.

Background

With the development of social economy and the progress of science and technology, smart homes are gradually popularized in daily life of residents. The electronic lock is a brand new safety protection product with computer software, big data and other related internet new technologies, has extremely high convenience and safety, and at present, gradually replaces the traditional mechanical lock in the market of door locks.

An electronic lock clutch in the prior art is shown in fig. 1 and comprises an electric control driving mechanism 01, a clutch device, a clutch reversing block 02 and a rotating block 03, wherein the clutch device is arranged on the rotating block 03 and is driven by the electric control driving mechanism 01 to realize the transmission matching of the clutch reversing block 02 and the rotating block 03, and a reset torsion spring 04 is further arranged between the clutch reversing block 02 and the rotating block 03. The clutch device comprises a pin 05, a compression spring 06 and a sleeve 07, wherein the sleeve 07 is arranged in a pin hole 031, the pin 05 is inserted into the sleeve 07, a limit flange 051 is arranged on the periphery of the pin 05 in the sleeve 07, the limit flange 051 is in limit fit with the outer end of the sleeve 07, and the compression spring 06 is sleeved outside the pin 05 and is pressed between the limit flange 051 and the pin hole 031; the outer end of the pin 05 extends out of the rotating block 03, and the inner end of the pin 05 points to a round cavity in the rotating block 03.

During the use process of the electronic lock, the inventor finds that at least the following problems exist in the prior art: the pin can be inserted into the straight groove of the rotating block due to inertia motion under the impact of external force and then cracked to unlock, so that potential safety hazards exist; the installation of the pin is troublesome, a special jig needs to be designed, and the pin can hardly be repaired; in addition, the clutch occupies a large space and is high in implementation cost.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides an electronic lock clutch, the security is higher, simple structure, and the cost is lower.

In order to achieve the above object, the embodiments of the present invention adopt the following technical solutions:

an electronic lock clutch comprising: one side of the driving disc is provided with a handle connecting part, and the other side of the driving disc is provided with an annular flange; the lock body connecting part is arranged on one side of the rotating disc, the rotating boss is arranged on the other side of the rotating disc, the rotating boss is located in the annular flange and can rotate along the inner side face of the annular flange, and the rotating boss is provided with a clamping groove; the clutch block comprises a fixed part, a clamping part and a counterweight part, the fixed part is rotationally connected to the driving disc, the annular flange is provided with an avoiding opening corresponding to the clutch block, and the clamping part can be clamped with the clamping groove by rotating the clutch block; the counterweight part and the clamping part are symmetrically arranged relative to the fixing part; elasticity resets, and the one end that elasticity resets is fixed in joint portion, and the other end is fixed on the driving-disc, and when elasticity reset, joint portion and draw-in groove separation when the piece is in natural state.

Optionally, the rotary boss comprises a circular boss and a first limiting block arranged on an outer ring of the circular boss, the circular boss and the annular flange are concentrically arranged, the first limiting block abuts against the inner side face of the annular flange, and the clamping groove is arranged on the circular boss; the both ends of dodging the opening part of annular flange all are equipped with the second stopper, and the draw-in groove is relative with dodging the opening, and just first stopper supports with one of two second stoppers and leans on.

Furthermore, the elastic reset piece is a torsion spring, a spiral first spring and a spiral second spring are formed at two ends of the torsion spring respectively, the first spring is fixedly connected with the driving disc, and the second spring is fixedly connected with the clamping portion.

Furthermore, the clamping part comprises a clamping hook and a swinging arm, a first fixing column is arranged on the surface of the swinging arm far away from the driving disc, and a second fixing column is arranged on a second limiting block abutted against the first limiting block; the first spring is sleeved on the first fixing column, and the second spring is sleeved on the second fixing column.

Further, the number of the clamping grooves is two, and the clamping grooves are point-symmetric about the rotation center of the circular boss.

Further, the surface of the lock body connecting part far away from the rotating boss is provided with a mark, and the mark corresponds to the first limiting block.

Furthermore, the clamping device further comprises an electric control driving device, and the electric control driving device can drive the clutch block to rotate so as to enable the clamping portion to be clamped with the clamping groove.

Optionally, the electrically controlled driving device is an electromagnetic relay, and the electromagnetic relay comprises an electromagnet and a push rod; when the electromagnet is electrified, the push rod is driven to push the clamping part to be clamped with the clamping groove; when the electromagnet is powered off, the push rod resets, and the clamping part is separated from the clamping groove under the action of the elastic force of the elastic resetting piece.

Optionally, the electric control driving device is a motor clutch, the motor clutch comprises a driving motor and an ejector rod, the driving motor rotates forwards, and the ejector rod is driven to push the clamping portion to be clamped with the clamping groove; the driving motor rotates reversely, the driving ejector rod resets, and the clamping portion is separated from the clamping groove under the action of elastic force of the elastic resetting piece.

The electronic lock clutch of the embodiment of the utility model comprises a driving disc, a rotating disc, a clutch block and an elastic reset piece, wherein one side of the driving disc is provided with a handle connecting part for fixedly connecting a door handle, and the other side is provided with an annular flange; one side of rolling disc is equipped with lock body connecting portion for the square steel of fixed connection drive lock body motion, and the opposite side is equipped with rotates the boss, rotates the boss and is equipped with the draw-in groove, rotates the boss and is located annular flange, and can follow annular flange's medial surface rotation. At this time, the rotation of the rotating disc and the rotation of the driving disc are mutually independent, and the door lock cannot be opened or closed by rotating the door handle. The clutch block comprises a fixed part, a clamping part and a counterweight part, the fixed part is rotationally connected to the driving disc, the annular flange is provided with an avoiding opening corresponding to the clutch block, the clamping part can be clamped with the clamping groove by rotating the clutch block, and the counterweight part and the clamping part are symmetrically arranged relative to the fixed part; one end of the elastic reset piece is fixed on the clamping portion, the other end of the elastic reset piece is fixed on the driving disc, and when the elastic reset piece is in a natural state, the clamping portion is separated from the clamping groove.

Like this, when exerting the driving force and make joint portion and draw-in groove joint, rotate the door handle and can make the driving-disc drive rolling disc rotate, and then make the motion of square steel drive lock body, realize opening and closing of lock. When the driving force is cancelled, the clamping portion is separated from the clamping groove under the action of the elastic force of the elastic reset piece, the rotation of the rotating disc is mutually independent of the rotation of the driving disc, and the door handle is rotated to prevent the door lock from being opened and closed. Compared with the prior art, the clutch block of the electronic lock clutch provided by the embodiment of the utility model comprises the fixing part, the clamping part and the counterweight part, and the fixing part is rotationally connected with the driving disc, so that the clutch block can not generate displacement relative to the driving disc when being impacted by external force; in addition, counter weight portion and joint portion set up for the fixed part symmetry, when receiving external force and assaulting, joint portion and counter weight portion can produce opposite rotation trend, can offset the rotation that external force assaults to lead to each other, the separation and reunion piece can remain static, and the separation and reunion piece still can receive the effect of the elasticity of elasticity piece that resets, the event can not lead to driving-disc and rolling disc to form the revolute pair, can't be deciphered and unblank, the security is higher, and the installation is comparatively simple and convenient, moreover, the steam generator is simple in structure, the cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is an exploded view of a prior art electronic lock clutch;

fig. 2 is a schematic structural diagram of an electronic lock clutch according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a rotating disk of an electronic lock clutch according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a driving disc of an electronic lock clutch according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a clutch block of an electronic lock clutch according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a torsion spring of an electronic lock clutch according to an embodiment of the present invention;

fig. 7 is a schematic structural view illustrating a clutch block of the electronic lock clutch according to the embodiment of the present invention when the clutch block is separated from the rotating disk;

fig. 8 is a schematic structural view of the clutch block of the electronic lock clutch according to the embodiment of the present invention when being engaged with the rotating disc.

Reference numerals:

01-an electrically controlled driving mechanism; 02-a clutch reversing block; 03-turning block; 031-pin holes; 04-a reset torsion spring; 05-pin; 051-limiting flange; 06-compression spring; 07-a sleeve; 1-a drive disc; 11-a handle connection; 12-an annular flange; 121-a second stopper; 1211-second fixed column; 2-rotating the disc; 21-a lock body connecting part; 211-identification; 22-rotating the boss; 221-circular boss; 2211-card slot; 222-a first stopper; 3-a clutch block; 31-a stationary part; 32-a clamping part; 321-a clamping hook; 322-swing arm; 3221-a first fixing column; 33-a counterweight; 4-an elastic restoring member; 41-torsion spring; 411-a first spring; 412-a second spring; 5-an electric control driving device; 51-electromagnetic relay.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

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

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The utility model discloses a pair of electronic lock clutch who provides, refer to fig. 2, fig. 3 and fig. 5, include: the handle comprises a driving disc 1, wherein a handle connecting part 11 is arranged on one side of the driving disc 1, and an annular flange 12 is arranged on the other side of the driving disc; a lock body connecting part 21 is arranged on one side of the rotating disc 2, a rotating boss 22 is arranged on the other side of the rotating disc 2, and the rotating boss 22 is positioned in the annular flange 12 and can rotate along the inner side surface of the annular flange 12; the clutch block 3 is rotationally connected to the driving disc 1, the annular flange 12 is provided with an avoidance opening corresponding to the clutch block 3, and the clutch block 3 can be clamped with the rotating disc 2 by rotating the clutch block 3; elasticity piece 4 that resets, the one end of elasticity piece 4 that resets is fixed on clutch piece 3, and the other end is fixed on driving-disc 1, and elasticity piece 4 that resets is in when natural state, clutch piece 3 and rolling disc 2 separation.

The electronic lock clutch of the embodiment of the utility model, referring to fig. 2, fig. 3 and fig. 5, comprises a driving disc 1, a rotating disc 2, a clutch block 3 and an elastic reset piece 4, wherein one side of the driving disc 1 is provided with a handle connecting part 11 for fixedly connecting a door handle, and the other side is provided with an annular flange 12; one side of rolling disc 2 is equipped with lock body connecting portion 21 for the square steel of fixed connection drive lock body motion, and the opposite side is equipped with rotates boss 22, rotates boss 22 and is equipped with draw-in groove 2211, rotates boss 22 and is located annular flange 12, and can follow the medial surface rotation of annular flange 12. At this time, the rotation of the rotary disk 2 and the rotation of the driving disk 1 are independent, and the door lock cannot be opened or closed by rotating the door handle. The clutch block 3 comprises a fixing part 31, a clamping part 32 and a counterweight part 33, the fixing part 31 is rotatably connected to the drive disc 1, the annular flange 12 is provided with an avoiding opening corresponding to the clutch block 3, the clamping part 32 can be clamped with the clamping groove 2211 by rotating the clutch block 3, and the counterweight part 33 and the clamping part 32 are symmetrically arranged relative to the fixing part 31; one end of the elastic reset piece 4 is fixed on the clamping portion 32, the other end is fixed on the driving disc 1, and when the elastic reset piece 4 is in a natural state, the clamping portion 32 is separated from the clamping groove 2211.

Like this, when exerting the driving force and make joint portion 32 and draw-in groove 2211 joint (refer to fig. 8), rotate the door handle and can make driving-disc 1 drive rolling disc 2 and rotate, and then make the motion of square steel drive lock body, realize opening and closing of lock. When the pushing force is removed (see fig. 7), the clamping portion 21 is separated from the clamping groove 2211 under the action of the elastic force of the elastic reset piece 4, the rotation of the rotating disc 2 is independent of the rotation of the driving disc 1, and the door handle cannot be opened or closed by rotating. Compared with the prior art, the clutch block 3 of the electronic lock clutch provided by the embodiment of the utility model comprises the fixing part 31, the clamping part 32 and the counterweight part 33, and the fixing part 31 is rotationally connected with the driving disc 1, so that the clutch block 3 can not generate displacement relative to the driving disc 1 when being impacted by external force; in addition, counter weight portion 33 and joint portion 32 set up for fixed part 31 symmetry, when receiving external force and assaulting, joint portion 32 and counter weight portion 33 can produce opposite rotation trend, can offset the rotation that external force assaulted to lead to each other, separation and reunion piece 3 can remain static, and separation and reunion piece 3 still can receive the effect of the elasticity of elasticity piece 4 that resets, the event can not lead to driving-disc 1 and rolling disc 2 to form the revolute pair, can't be cracked and unblank, the security is higher, and the installation is comparatively simple and convenient, moreover, the steam generator is simple in structure, the cost is lower.

Referring to fig. 2, 3 and 4, the rotary boss 22 includes a circular boss 221 and a first stopper 222 disposed on an outer ring of the circular boss 221, the circular boss 221 is concentric with the annular flange 12, the first stopper 222 abuts against an inner side surface of the circular flange, and the locking slot 2211 is disposed on the circular boss 221; the two ends of the avoiding opening of the annular flange 12 are both provided with a second limiting block 121, the clamping groove 2211 is opposite to the avoiding opening, and the first limiting block 222 abuts against one of the two second limiting blocks 121. It will be appreciated that during use of the electronic lock, rotation in a first direction is generally unlocking and rotation in a second direction is generally anti-locking, the first direction being generally clockwise and the second direction being generally counter-clockwise. Wherein, the first limiting block 222 is directly rotated towards the direction of the second limiting block 121 abutted against the first limiting block, so that the back locking can be realized; in addition, when the clutch block 3 is separated from the rotating disc 2, the first limiting block 222 can rotate in the direction away from the second limiting block 121 against which the first limiting block abuts, so that the door handle is prevented from being broken, the safety is good, the rotating disc 2 cannot be driven to move by rotating the driving disc 1, and the door lock cannot be opened.

In some embodiments, referring to fig. 2 and 6, the elastic restoring member 4 is a torsion spring 41, two ends of the torsion spring 41 are respectively formed with a first spring 411 and a second spring 412 in a spiral shape, the first spring 411 is fixedly connected to the driving disc 1, and the second spring 412 is fixedly connected to the engaging portion 32. In this case, the torsion spring 41 may generate a large amount of deformation, and the elastic restoring force is good, so that the reliability of the torsion spring 41 is high; when the clutch block 3 is separated from the rotating disc 2, the clutch block 3 can be quickly restored to the initial position, and the user experience is high.

The positions of the two ends of the torsion spring 41, the clamping portion 32 and the driving disc 1, which are fixedly connected, are not unique, for example, referring to fig. 2, 4 and 5, the clamping portion 32 includes a clamping hook 321 and a swing arm 322, a first fixing column 3221 is arranged on the surface of the swing arm 322 far away from the driving disc 1, and the first spring 411 is sleeved on the first fixing column 3221 on the swing arm 322; the hook-shaped design of the hook 321 has certain self-locking property and good clamping effect. It should be understood that, the first spring 411 needs to be fixed on the hook 321 in consideration of the design of the fixing structure of the first spring 411 to avoid affecting the matching between the hook 321 and the slot 2211, and the fixing structure of the first spring 411 designed on the swing arm 322 does not affect the matching between the hook 321 and the slot 2211, so that the fixing manner of the first spring 411 sleeved on the first fixing column 3221 on the swing arm 322 is simple and the manufacturing cost is low; a second fixing column 1211 is disposed on the second stopper 121 abutting against the first stopper 222, and the second spring 412 is sleeved on the second fixing column 1211. Compared with the second spring 412 fixed at other positions of the driving disc 1, the second limiting block 121 is closer to the clamping groove 2211, the size of the required torsion spring 41 is smaller, the manufacturing cost of the torsion spring 41 is lower, and after the clutch block 3 is clamped with the rotating disc 2, the deformation amount of the torsion spring 41 is larger, the elastic restoring force is larger, the clutch block 3 can be quickly restored to the initial position, and the user experience is higher.

It should be understood that the above two application scenarios cannot be realized in the same clamping position of the same clutch according to different application scenarios, for example, clockwise rotating the door handle to open the door, and counterclockwise rotating the door handle to open the door. Therefore, referring to fig. 3, 4, and 5, the card slots 2211 are two in number and point-symmetric about the rotational center of the circular boss 221. At this time, the mounting position of the turn disc 2 may be selected by rotating the door handle clockwise or counterclockwise, that is, by rotating the turn disc 2 by 180 °, the engaging portion 32 of the clutch block 3 is engaged with the different engaging slot 2211 to correspond to the door handle rotated clockwise or the door handle rotated counterclockwise.

Specifically, refer to fig. 2 and fig. 7, to drive-disc 1 and be equipped with one side of rolling disc 2 as an example, when first stopper 222 supports with the second stopper 121 that is close to joint portion 32 and leans on, one of two draw-in grooves 2211 exposes at dodge opening part, and at this moment, drive-disc 1 anticlockwise can realize the anti-lock, and when separation and reunion piece 3 and rolling disc 2 joint, drive-disc 1 clockwise rotation can open the lock. When the first limiting block 222 abuts against the second limiting block 121 close to the counterweight part 33, the other clamping groove 2211 in the two clamping grooves 2211 is exposed at the avoiding opening, at this time, the driving disc 1 can realize reverse locking clockwise, and when the clutch block 3 is clamped with the rotating disc 2, the driving disc 1 rotates anticlockwise to open the door lock. Therefore, the utility model discloses electronic lock clutch can be applicable to different application scenarios, and the commonality is stronger.

Further, due to different application scenarios and different installation positions of the rotary disc 2 included in the electronic lock clutch, in order to facilitate distinguishing the installation position of the rotary disc 2 and further ensure correct installation of the rocker spring, referring to fig. 2, 3 and 4, a mark 211 is disposed on a surface of the lock body connecting portion 21 away from the rotary boss 22, and the mark 211 corresponds to the first limit block 222. At this time, which of the first stopper 222 and the two second stoppers 121 abuts against can be recognized through the surface of the lock body connecting portion 21 away from the rotating boss 22, and whether the rotating disc 2 is installed in place can be directly confirmed according to the position of the mark 211.

Referring to fig. 2, fig. 3 and fig. 5, in order to provide driving force for the rotation of clutch block 3, the electronic lock clutch of the embodiment of the present invention further includes an electric control driving device 5, and the electric control driving device 5 can drive the clutch block 3 to rotate, so as to connect the clamping portion 32 with the clamping groove 2211. When the electric control driving device 5 removes the driving force, the clutch block 3 is naturally separated from the rotating disc 2 under the action of the elastic restoring force of the elastic restoring piece. Based on this, the joint of above-mentioned separation and reunion piece 3 and rolling disc 2 can realize automatic control through automatically controlled drive arrangement 5, and is intelligent higher, and user experience is higher.

In some embodiments, the electrically controlled driving device 5 is an electromagnetic relay 51, and the electromagnetic relay 51 includes an electromagnet and a push rod; when the electromagnet is powered on, the driving push rod pushes the clamping portion 32 to be clamped with the clamping groove 2211; when the electromagnet is powered off, the push rod is reset, and the clamping portion 32 is separated from the clamping groove 2211 under the action of the elastic force of the elastic reset piece 4. At the moment, the push rod does not need to be electrified in the resetting action, the structure is simple, and the use cost is low.

In other embodiments, the electrically controlled driving device 5 is a motor clutch, the motor clutch includes a driving motor and a push rod, the driving motor rotates forward, and the push rod is driven to push the clamping portion 32 to be clamped with the clamping slot 2211; the driving motor rotates reversely to drive the ejector rod to reset, and the clamping portion 32 is separated from the clamping groove 2211 under the action of the elastic force of the elastic resetting piece.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An electronic lock clutch, comprising:

the handle connecting part is arranged on one side of the driving disc, and the annular flange is arranged on the other side of the driving disc;

the lock body connecting part is arranged on one side of the rotating disc, the rotating boss is arranged on the other side of the rotating disc, the rotating boss is located in the annular flange and can rotate along the inner side face of the annular flange, and the rotating boss is provided with a clamping groove;

the clutch block comprises a fixed part, a clamping part and a counterweight part, the fixed part is rotationally connected to the driving disc, the annular flange is provided with an avoiding opening corresponding to the clutch block, and the clamping part can be clamped with the clamping groove by rotating the clutch block; the counterweight part and the clamping part are symmetrically arranged relative to the fixing part;

the elastic reset piece, the one end that the elastic reset piece was fixed on joint portion, the other end is fixed on the driving-disc, just when the elastic reset piece was in natural state, joint portion with the draw-in groove separation.

2. The electronic lock clutch according to claim 1, wherein the rotation boss includes a circular boss and a first stopper disposed on an outer ring of the circular boss, the circular boss is disposed concentrically with the annular flange, the first stopper abuts against an inner side surface of the annular flange, and the engaging groove is disposed on the circular boss;

annular flange's both ends of dodging the opening part all are equipped with the second stopper, the draw-in groove with dodge the opening relative, just first stopper and two support and lean on one in the second stopper.

3. The electronic lock clutch of claim 2, wherein the elastic return member is a torsion spring, a first spiral spring and a second spiral spring are respectively formed at two ends of the torsion spring, the first spring is fixedly connected with the driving disc, and the second spring is fixedly connected with the clamping portion.

4. The electronic lock clutch according to claim 3, wherein the engaging portion includes a hook and a swing arm, a first fixing post is disposed on a surface of the swing arm away from the driving plate, and a second fixing post is disposed on the second limiting block abutting against the first limiting block; the first spring is sleeved on the first fixing column, and the second spring is sleeved on the second fixing column.

5. The electronic lock clutch according to claim 2, wherein the number of the catching grooves is two and is point-symmetric with respect to a rotation center of the circular boss.

6. The electronic lock clutch of claim 5, wherein a mark is disposed on a surface of the lock body connecting portion away from the rotation boss, and the mark corresponds to the first stopper.

7. The electronic lock clutch according to claim 1, further comprising an electrically controlled driving device, wherein the electrically controlled driving device can drive the clutch block to rotate, so that the engaging portion is engaged with the engaging groove.

8. The electronic lock clutch of claim 7, wherein the electronically controlled drive device is an electromagnetic relay including an electromagnet and a push rod;

when the electromagnet is electrified, the push rod is driven to push the clamping part to be clamped with the clamping groove; when the electromagnet is powered off, the push rod resets, and the clamping portion is separated from the clamping groove under the action of the elastic force of the elastic resetting piece.

9. The electronic lock clutch according to claim 7, wherein the electrically controlled driving device is a motor clutch, the motor clutch includes a driving motor and a push rod, the driving motor rotates forward to drive the push rod to push the clamping portion to be clamped with the clamping groove; the driving motor rotates reversely to drive the ejector rod to reset, and the clamping portion is separated from the clamping groove under the action of elastic force of the elastic resetting piece.