CN112983139B

CN112983139B - Driving mechanism for door lock and door lock

Info

Publication number: CN112983139B
Application number: CN202110316631.4A
Authority: CN
Inventors: 苏祺云; 梁忠祥
Original assignee: Shenzhen Kaidisi Intelligent Technology Co ltd
Current assignee: Shenzhen Kaidisi Intelligent Technology Co ltd
Priority date: 2020-09-30
Filing date: 2021-03-24
Publication date: 2023-06-23
Anticipated expiration: 2041-03-24
Also published as: CN112983139A; CN220565882U

Abstract

The application provides a driving mechanism for a door lock and the door lock. The driving mechanism comprises a motor, a planetary gear assembly and a retainer, wherein the planetary gear assembly comprises a gear ring, a planet wheel and a sun wheel, the motor is rotationally connected with the gear ring, the planet wheel is rotationally connected between the sun wheel and the gear ring, the retainer is arranged on one side of the planetary gear assembly, the gear ring and the sun wheel are both abutted against the retainer, and the planet wheel is connected with the retainer; when the sun gear is in a fixed state, the gear ring rotates under the drive of the motor. When the gear ring is in a fixed state, the sun gear, the planet gears and the retainer are mutually matched to enable the planet gears to rotate relative to the sun gear, and the retainer rotates. The door can be opened and closed by adopting a motor to control the gear ring to rotate or using a sun gear to rotate, so that a door lock control method is increased, the problem that the door cannot be opened and closed due to motor damage in a single motor lock is avoided, and the difficulty and risk of opening the door are reduced.

Description

Driving mechanism for door lock and door lock

Technical Field

The application belongs to the technical field of door lock mechanisms, and particularly relates to a driving mechanism for a door lock and the door lock.

Background

As the population increases, the number of houses increases. Door locks are one of the important mechanisms for controlling the opening and closing of a house. So the expectation and the requirement of people on door locks are also increasing. Currently, a door lock usually adopts a motor lock, namely, a lock cylinder is driven by a motor to move so as to realize door opening and closing. However, once the motor or other mechanism parts of the motor lock have faults, the whole motor lock cannot move, and a user cannot open the door from the room, so that the difficulty and risk of opening the door are greatly increased.

Disclosure of Invention

In view of this, the present application provides in a first aspect a drive mechanism for a door lock, the drive mechanism comprising:

a motor;

the planetary gear assembly comprises a gear ring, a planet wheel and a sun wheel, wherein the motor is rotationally connected with the gear ring, an accommodating space is arranged in the gear ring, the planet wheel and the sun wheel are both arranged in the accommodating space, and the planet wheel is rotationally connected between the sun wheel and the gear ring; the retainer is arranged on one side of the planetary gear assembly, the gear ring and the sun gear are both abutted against the retainer, and the planetary gears are connected with the retainer; when the sun gear is in a fixed state, the gear ring is driven by the motor to rotate so that the planet gears rotate relative to the sun gear and further drive the retainer to rotate; alternatively, when the ring gear is in a fixed state, the sun gear, the planet gears and the cage cooperate with each other to rotate the planet gears relative to the sun gear, and the cage rotates.

The driving mechanism provided in the first aspect of the application enables the motor to be rotationally connected with the gear ring through the planetary gear assembly, namely, the motor can control the rotation of the gear ring. And secondly, the planetary gears can be connected with the retainer, namely, the planetary gears can control the rotation of the retainer. In addition, the retainer can be finally rotated through the mutual matching of the gear ring, the planet gears and the sun gears, and finally the lock cylinder connected with the retainer is driven to move, so that the door can be opened and closed.

The gear ring, the planet wheel and the sun wheel are specifically matched, so that when the sun wheel is in a fixed state, the gear ring rotates under the drive of the motor, and the planet wheel rotates relative to the sun wheel. The door can be opened and closed by a motor. When the motor fails and the gear ring cannot rotate, the gear ring is in a fixed state, the sun gear, the planet gears and the retainer are mutually matched to enable the planet gears to rotate relative to the sun gear, the retainer rotates, and finally the door is opened and closed through rotation of the retainer.

In summary, the driving mechanism provided by the application realizes the door opening and closing by adopting the motor to control the gear ring to rotate or by enabling the sun gear to rotate in two modes, so that the method for controlling the door lock is increased, the problem that the door cannot be opened and closed due to the damage of the motor in a single motor lock is avoided, and the difficulty and the risk of opening the door are reduced.

When the gear ring is in a fixed state, the sun gear can be controlled to rotate, so that the planet gears rotate relative to the gear ring, and the retainer is driven to rotate.

The driving mechanism further comprises a bracket assembly, the bracket assembly comprises a first bracket, a second bracket and a first elastic piece, the sun wheel is connected to one side of the first bracket, a buffer groove is formed in the other side of the first bracket, and a first protruding portion is protruding from the side wall of the buffer groove;

the periphery of the second bracket is convexly provided with a second protruding part, the second protruding part is arranged in the buffer groove, and the second bracket is in a fixed state or a rotating state;

the first elastic piece is arranged in the buffer groove and elastically abuts against between the first protruding portion and the second protruding portion.

The driving mechanism further comprises a handle support and a shell, wherein the handle support is connected with the second support in a sliding mode, and the sliding direction of the handle support is perpendicular to the rotating direction of the sun gear;

the planetary gear assembly is arranged in the housing, at least part of the motor is arranged in the housing, a through hole which is communicated with the housing is formed in the housing, part of the handle support penetrates through the through hole, at least part of the side wall of the through hole is convexly provided with a clamping part, and the clamping part is matched with the handle support to realize connection or separation.

The driving mechanism further comprises a second elastic piece, one end of the second elastic piece is abutted against the handle support, the other end of the second elastic piece is abutted against the second support, and when the handle support moves towards the direction close to the second support, the second elastic piece is in a compressed state.

The handle support is provided with a first accommodating groove at one side close to the second support, and part of the second elastic piece is arranged in the first accommodating groove.

When the gear ring is in a fixed state, the retainer can be directly controlled to rotate, the planet gears are driven to rotate, and then the sun gear is driven to rotate, so that the planet gears rotate relative to the gear ring.

the periphery of the second bracket is convexly provided with a second protruding part, and the second protruding part is arranged in the buffer groove;

The driving mechanism further comprises a third bracket, a handle bracket and a shell, wherein the third bracket is in sliding connection with the second bracket, the handle bracket is in sliding connection with the bracket component, and the sliding directions of the third bracket and the handle bracket are perpendicular to the rotation direction of the sun gear; the handle bracket can be connected with or separated from the retainer;

the planetary gear assembly is arranged in the housing, at least part of the motor is arranged in the housing, a through hole which is communicated with the housing is formed in the housing, the handle support penetrates through the through hole, at least part of the side wall of the through hole is convexly provided with a clamping part, the clamping part is matched with the third support to realize connection or separation, and the third support is in a fixed state or a rotary state.

When the gear ring is in a fixed state, the handle bracket is connected with the retainer, and the fastening part is controlled to be separated from the third bracket; the handle support rotates to drive the retainer to rotate and drive the planet gears to rotate, so that the sun gear is driven to rotate, and finally the support assembly is driven to rotate.

The third support, the second support, the first support and the sun gear are provided with through holes so that the handle support slides, a first connecting portion is arranged at one end, close to the retainer, of the handle support, a second connecting portion is arranged on the retainer, and the first connecting portion is matched with the second connecting portion to achieve connection of the handle support to the retainer.

When the gear ring is in a fixed state, the handle bracket is connected with the retainer.

The driving mechanism further comprises a connecting piece, wherein the connecting piece is arranged between the third bracket and the handle bracket, and is clamped with the third bracket and the handle bracket in the direction perpendicular to the rotation direction of the sun gear; when the handle support slides, the third support can be driven to slide, so that the third support is connected with or separated from the buckling part.

The clamping part comprises a plurality of clamping blocks which are arranged at intervals, and a plurality of clamping grooves which are arranged at intervals are formed in the outer periphery of the third bracket; when the third bracket slides and the clamping block is arranged in the clamping groove, the clamping part is connected with the third bracket; when the third bracket slides and the clamping block is separated from the clamping groove, the clamping part is separated from the third bracket.

The driving mechanism further comprises a third elastic piece, a second containing groove is formed in one side, close to the retainer, of the second bracket, part of the third elastic piece is arranged in the second containing groove, and the third elastic piece abuts against the third bracket and the second bracket; when the handle bracket slides towards the direction approaching the retainer, the third elastic piece is in a compressed state.

The motor is arranged on a first side of the planetary gear assembly, the support assembly is arranged on a second side of the planetary gear assembly, and the first side and the second side are adjacently arranged.

Wherein the driving mechanism further comprises a universal joint which is rotatably connected to the other side of the retainer; the cage has a first rotational direction, the gimbal has a second rotational direction, and the first rotational direction intersects the second rotational direction; the universal joint is provided with a second accommodating groove which is used for connecting the lock cylinder.

The universal joint comprises a first rotating part and a second rotating part, wherein the first rotating part is arranged in the first rotating space, and the first rotating part is rotationally connected with the third protruding part;

The first rotating part is internally provided with a second rotating space, the second rotating part is arranged in the second rotating space and is rotationally connected with the first rotating part, and the second rotating part is internally provided with the second accommodating groove;

the first rotating part is provided with a first sub-rotating direction, the second rotating part is provided with a second sub-rotating direction, the first sub-rotating direction is intersected with the second sub-rotating direction, and the first sub-rotating direction and the second sub-rotating direction are intersected with the second rotating direction.

The driving mechanism further comprises a worm wheel and a worm, the worm is connected with the motor, one end of the worm wheel is rotatably connected with the worm, and the other end of the worm wheel is rotatably connected with the gear ring.

A second aspect of the present application provides a door lock comprising a lock cylinder, and a drive mechanism as provided in the first aspect of the present application, the lock cylinder being connected to the other side of the holder, the lock cylinder being moved under rotation of the holder, thereby effecting opening and closing of the door.

The door lock that this application second aspect provided through adopting the actuating mechanism that this application first aspect provided, can realize through adopting motor control ring gear rotatory, perhaps through the rotatory both modes of control sun gear realizing the switch door, has increased the method of control door lock, has avoided the problem of unable switch door because of the motor damages in the single motor lock, has reduced the degree of difficulty and the risk of opening the door.

Drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be described below.

Fig. 1 is a schematic structural diagram of a driving mechanism according to an embodiment of the present application.

Fig. 2 is a schematic view of the structure of fig. 1 after removal of the cage.

Fig. 3 is a schematic view along A-A in fig. 2.

Fig. 4 is a schematic view along the direction B-B in fig. 2.

Fig. 5 is a schematic perspective view of a driving mechanism according to an embodiment of the present application.

Fig. 6 is a schematic cross-sectional view of a driving mechanism along A-A in another embodiment of the present application.

Fig. 7 is a top view of a bracket assembly according to an embodiment of the present application.

Fig. 8 is a schematic perspective view of a driving mechanism according to another embodiment of the present application.

Fig. 9 is a schematic cross-sectional view of a driving mechanism along A-A in a further embodiment of the present application.

Fig. 10 is a schematic view of the second bracket in a rotating state according to an embodiment of the present application.

Fig. 11 is a top view of a drive mechanism according to an embodiment of the present application.

Fig. 12 is a schematic cross-sectional view of a driving mechanism along A-A in a further embodiment of the present application.

Fig. 13 is a schematic perspective view of a driving mechanism according to another embodiment of the present application.

Fig. 14 is a top view of fig. 13.

Fig. 15 is a schematic cross-sectional view along B-B in fig. 14 in an embodiment of the present application.

Fig. 16 is an exploded view of a drive mechanism according to an embodiment of the present application.

Fig. 17 is a schematic view of a housing and a third bracket according to an embodiment of the present application.

Fig. 18 is a schematic cross-sectional view along B-B in fig. 14 in another embodiment of the application.

Fig. 19 is a schematic cross-sectional view of a driving mechanism along A-A in a further embodiment of the present application.

Fig. 20 is a top view of a drive mechanism according to another embodiment of the present application.

Fig. 21 is a schematic view of the universal joint according to an embodiment of the present application when the universal joint rotates in the first sub-rotation direction.

FIG. 22 is a schematic view of a gimbal in one embodiment of the present application rotated in a second sub-rotational direction.

Description of the reference numerals:

the driving mechanism-1, the motor-10, the planetary gear assembly-20, the gear ring-21, the accommodating space-211, the planet gears-22, the sun gear-23, the first side-24, the second side-25, the retainer-30, the groove-31, the protruding part-32, the first connecting part-33, the second connecting part-34, the transmission mechanism-40, the worm-41, the turbine-42, the gear assembly-43, the first gear-431, the second gear-432, the third gear-433, the first rotating shaft-434, the second rotating shaft-435, the bracket assembly-50, the through hole-500, the first bracket-51, the buffer slot-511, the first protruding part-512, the second bracket-52, the second protruding part-521, the first elastic part-53, the handle bracket-54, the second elastic part-55, the limiting part-56, the first accommodating slot-57, the third bracket-58, the clamping slot-580, the third elastic part-59, the housing-60, the accommodating space-61, the through hole-62, the clamping block-63, the clamping slot-70, the first rotating shaft-77, the second rotating shaft-75, the second bracket-73, the second protruding part-75, the first rotating shaft-80, the second bracket-73, the second protruding part-75, the second rotating part-80, the limiting part-77, the first rotating part-73, the second protruding part-80, the second elastic part-77, the second elastic part-55, the limiting part-55, the first connecting the first accommodating space-55, the first supporting part.

Detailed Description

The following are preferred embodiments of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application and are intended to be within the scope of the present application.

Before the technical scheme of the application is described, the technical problems in the related art are described in detail.

Door locks are one of the important structural members on doors, and can control the opening, closing, locking and the like of the doors. In the prior art, a purely mechanical door lock structure is generally adopted, namely, a key is utilized to drive a structure in a door lock to move so as to realize opening and closing of a door. With the progress of technology and the continuous change of demands of users, electronic locks are now in the field of view of people and are popular with users. The electronic lock does not need to use a key under the conventional condition, and can automatically drive the structure in the door lock to move through the built-in circuit by only face recognition, password input, fingerprint input, voice recognition and other methods, so that the door can be opened and closed. This brings great convenience and user experience. However, once the motor, the circuit structure or other structural components in the motor lock are out of order, a problem occurs in a certain link in the motor lock, and the motor lock can not work normally, so that a user outside the door can not open the door to enter a room through a door opening method of the electronic lock, and can only enter the room through a door opening method of the key. And users in the door cannot open the door to leave the room, and only a violent dismantling method is adopted for the door or the door lock at the moment, so that irreversible loss is caused to the door, and unlocking difficulty and risk are greatly increased.

Referring to fig. 1-4 together, fig. 1 is a schematic structural diagram of a driving mechanism according to an embodiment of the present application. Fig. 2 is a schematic view of the structure of fig. 1 after removal of the cage. Fig. 3 is a schematic view along A-A in fig. 2. Fig. 4 is a schematic view along the direction B-B in fig. 2. The present embodiment provides a drive mechanism 1 for a door lock, the drive mechanism 1 including a motor 10. A planetary gear assembly 20, said planetary gear assembly 20 comprising a ring gear 21, planet gears 22, and a sun gear 23. The motor 10 is rotatably connected to the ring gear 21. The ring gear 21 has an accommodating space 211, the planet gears 22 and the sun gear 23 are both disposed in the accommodating space 211, and the planet gears 22 are rotatably connected between the sun gear 23 and the ring gear 21. And a holder 30 provided on one side of the planetary gear assembly 20, wherein the ring gear 21 and the sun gear 23 are both abutted against the holder 30, and the planetary gears 22 are connected to the holder 30. When the sun gear 23 is in a fixed state, the gear ring 21 is driven by the motor 10 to rotate, so that the planet gears 22 rotate relative to the sun gear 23, and the retainer 30 is driven to rotate; alternatively, when the ring gear 21 is in a fixed state, the planetary gear 22 may be rotated relative to the sun gear 23 by the sun gear 23, the planetary gear 22, and the cage 30 cooperating with each other, and the cage 30 may be rotated.

The driving mechanism 1 provided in this embodiment is one of important structural members of the door lock. The door lock mainly comprises a driving mechanism 1, a lock cylinder and a lock body. The lock body is arranged in the door, the lock core is arranged in the lock body, and the pulling wheel of the lock core can drive the lock tongue of the lock body to extend or retract so as to realize opening and closing of the door. The driving mechanism 1 is arranged outside the door and is connected with the lock core in the door, and the movement of the driving mechanism can drive the lock core to move, so that the extension and retraction of the lock tongue are realized.

The driving mechanism 1 provided in the present embodiment includes a motor 10 and a power source. The motor 10 is electrically connected to a power source, and the power source can provide needed energy for the motor 10, so that the motor 10 can work and rotate after receiving the electric energy. Alternatively, the power source may be a rechargeable battery; alternatively, the power source may be a non-rechargeable battery, such as a dry cell battery or a button cell battery. Further alternatively, the dry cell or button cell may be a lithium ion cell.

The driving mechanism 1 provided in this embodiment further includes a planetary gear assembly 20. Wherein the planetary gear assembly 20 is comprised of a plurality of structural members. For example, the planetary gear assembly 20 includes a ring gear 21, a planet gear 22, and a sun gear 23. The names of the three structural members are all technical terms of the professionals of the gears in the industry of the person skilled in the art. The gear ring 21 is a ring gear, an accommodating space 211 is provided in the gear ring 21, and the gear ring 21 has a ring of internal teeth and a ring of external teeth. The motor 10 is rotatably connected to the external teeth of the ring gear 21. It will be appreciated that the external teeth of the motor 10 rotatably connected to the ring gear 21 may be external teeth of the motor 10 directly connected to achieve direct rotational connection of the motor 10 to the ring gear 21. Alternatively, another transmission mechanism 40 is further provided between the motor 10 and the ring gear 21, one end of the transmission mechanism 40 is rotatably connected to the motor 10, and the other end of the transmission mechanism 40 is rotatably connected to the ring gear 21. The rotation of the motor 10 drives the transmission mechanism 40 to rotate, and the transmission mechanism 40 rotates to drive the gear ring 21 to rotate. It can be seen that the motor 10 is indirectly rotatably connected to the ring gear 21. As for the specific structure of the transmission mechanism 40, the present application will be described later.

In addition, the planet gears 22 and the sun gear 23 each have a ring of external teeth, and the planet gears 22 and the sun gear 23 are both disposed in the accommodation space 211. The planet wheel 22 is rotatably connected between the sun wheel 23 and the ring gear 21. It is also understood that one end of the planet wheel 22 is rotatably connected to the internal teeth of the ring gear 21 and the opposite end of the planet wheel 22 is rotatably connected to the external teeth of the sun gear 23. The three gears of the ring gear 21, the planet gears 22 and the sun gear 23 link the whole planet gear 22 assembly together through the planet gears 22. Alternatively, the number of the planetary gears 22 may be plural, and each planetary gear 22 is disposed at a uniform interval. For example, the number of the planetary gears 22 is 3, and each planetary gear 22 is disposed 120 ° apart. This improves the stability of the rotation of the planet wheel 22 assembly and the cage 30.

The driving mechanism 1 provided in this embodiment further includes a cage 30, wherein the cage 30 is a bracket for mounting the planetary gear assembly 20 and other structural members. The planetary gear assembly 20 is disposed on one side of the mounting member and the lock cylinder is disposed on the other side of the mounting member. The ring gear 21 and the sun gear 23 of the planetary gear assembly 20 are both abutted against the cage 30, and the planetary gears 22 are connected to the cage 30. In this way, the state of motion of the carrier 30 is not affected when the ring gear 21 and the sun gear 23 rotate. The planet 22 is connected to the cage 30, so that rotation of the planet 22 drives the cage 30 to rotate together. Alternatively, the rotation of the cage 30 may reverse the rotation of the planet 22. The rotation of the retainer 30 can further drive the lock cylinder to move, so as to finally realize the extension and the insertion of the lock tongue in the door lock.

Alternatively, as shown in fig. 3, the cage 30 is provided with a groove 31, and the sun gear 23 is provided with a protrusion 32, said protrusion 32 being provided in said groove 31. Alternatively, as shown in fig. 15, the holder 30 is provided with a protrusion 32, the sun gear 23 is provided with a via 500, and the protrusion 32 is provided in the via 500. In this way, the sun gear 23 can be abutted against the retainer 30, and the position of the sun gear 23 can be limited by the protrusion 32 and the groove 31.

The above is the mechanical structure of the driving mechanism 1 provided in the present embodiment. As to how the movement of the drive mechanism 1 is achieved in particular. In this embodiment, the planet gears 22 are finally rotated by the mutual cooperation of the gear ring 21, the planet gears 22 and the sun gear 23, and the retainer 30 is rotated, so that the lock cylinder connected with the retainer 30 is finally driven to move, thereby opening and closing the door. The specific method of matching the ring gear 21, the planetary gear 22, and the sun gear 23 is understood to be that by fixing one of the ring gear 21 and the sun gear 23, the other of the ring gear 21 and the sun gear 23 and the planetary gear 22 are rotated, so that the planetary gear 22 can revolve around the sun gear 23 and the cage 30 is rotated. For example, when the sun gear 23 is in a fixed state, the ring gear 21 is driven by the motor 10 to rotate, so that the planetary gear 22 rotates relative to the sun gear 23, and the cage 30 is driven to rotate, so that the door can be opened and closed by the motor 10. When the motor 10 fails and cannot work normally, the ring gear 21 cannot rotate, and at this time, the ring gear 21 is in a fixed state, and the planetary gear 22 and the cage 30 cooperate with each other to rotate the planetary gear 22 relative to the sun gear 23, and the cage 30 rotates, so that the door is opened and closed by the rotation of the cage 30.

Alternatively, the present application provides two different implementations with different mechanical structures and transmission relationships when the ring gear 21 is in a stationary state, as will be described in detail hereinafter.

Alternatively, the structure and method for fixing and rotating the sun gear 23 will be described in detail later in this application.

In summary, in the driving mechanism 1 provided in this embodiment, the motor 10 is used to control the gear ring 21 to rotate, or the sun gear 23 is made to rotate to open and close the door, so that a method for controlling the door lock is added, the problem that the door cannot be opened and closed due to damage of the motor 10 in the motor 10 lock with a single function is avoided, and the difficulty and risk of opening the door are reduced.

Referring to fig. 1-4 again, in the present embodiment, the driving mechanism 1 further includes a worm wheel 42 and a worm 41, the worm 41 is connected to the motor 10, one end of the worm wheel 42 is rotatably connected to the worm 41, and the other end of the worm wheel 42 is rotatably connected to the ring gear 21.

It was mentioned above that the motor 10 can be indirectly rotationally connected to the ring gear 21 via the transmission 40. In this embodiment, the transmission mechanism 40 may include a worm wheel 42 and a worm 41, wherein the worm 41 is connected to the motor 10, one end of the worm wheel 42 is rotatably connected to the worm 41, and the other end of the worm wheel 42 is rotatably connected to the ring gear 21. The rotation of the motor 10 is transmitted to the ring gear 21 through the worm wheel 42 and the worm 41. The turbine 42 has a larger single-stage ratio with the worm 41, and has smaller noise and smaller vibration during rotation. The worm wheel 42 and the worm 41 have a self-locking function. The self-locking function is understood to mean, among other things, that the rotatable coupling worm gear 42 rotates when the worm 41 rotates, but that the locking worm gear 42 is stationary when the worm 41 is stationary. In addition, the rotation directions of the worm wheel 42 and the worm 41 are perpendicular to each other, so that the arrangement direction of the motor 10 can be changed, thereby simplifying the structure of the driving mechanism 1 and reducing the overall size.

Alternatively, the other end of the turbine 42 is rotationally connected to the ring gear 21, and it is also understood that the other end of the turbine 42 is indirectly rotationally connected to the ring gear 21. Further alternatively, the transmission mechanism 40 further includes a gear assembly 43, where the gear assembly 43 includes a first gear 431, a second gear 432, a third gear 433, a first shaft 434, and a second shaft 435, the turbine 42 and the first gear 431 are coaxially coupled to rotate through the first shaft 434, the first gear 431 is rotatably connected to the second gear 432, the second gear 432 and the third gear 433 are coaxially coupled to rotate through the second shaft 435, and the third gear 433 is rotatably connected to the ring gear 21.

Referring to fig. 5-7, fig. 5 is a schematic perspective view of a driving mechanism according to an embodiment of the present application. Fig. 6 is a schematic cross-sectional view of a driving mechanism along A-A in another embodiment of the present application. Fig. 7 is a top view of a bracket assembly according to an embodiment of the present application. The above describes two different implementations provided by the present application when the ring gear 21 is in a stationary state. In the first implementation manner provided in the present application, when the ring gear 21 is in a fixed state, the sun gear 23 may be controlled to rotate, so that the planet gears 22 rotate relative to the ring gear 21, and further drive the cage 30 to rotate. Thus, even when the motor 10 fails, the door can be opened and closed by controlling the sun gear 23 to rotate.

Specifically, referring to fig. 5-7 again, in the present embodiment, the driving mechanism 1 further includes a bracket assembly 50, the bracket assembly 50 includes a first bracket 51, a second bracket 52, and a first elastic member 53, the sun gear 23 is connected to one side of the first bracket 51, a buffer slot 511 is formed on the other side of the first bracket 51, and a first protrusion 512 is protruding from a side wall of the buffer slot 511. The second bracket 52 has a second protruding portion 521 protruding from the periphery thereof, the second protruding portion 521 is disposed in the buffer slot 511, and the second bracket 52 has a fixed state or a rotating state. The first elastic member 53 is disposed in the buffer groove 511, and the first elastic member 53 elastically abuts between the first protruding portion 512 and the second protruding portion 521.

The above description describes how the sun gear 23 is fixed and rotated, and this embodiment describes how the sun gear 23 is fixed and rotated. Specifically, the present embodiment may be configured by adding a bracket assembly 50, where the bracket assembly 50 includes a first bracket 51, a second bracket 52, and a first elastic member 53. The sun gear 23 is connected to one side of the first bracket 51, that is, the first bracket 51 may drive the sun gear 23 to rotate, and the sun gear 23 may also drive the first bracket 51 to rotate. A buffer slot 511 is formed on the other side of the first bracket 51, and a first protrusion 512 is protruded from a side wall of the buffer slot 511.

The second bracket 52 has a second protruding portion 521 protruding from its peripheral surface, the second protruding portion 521 is disposed in the buffer slot 511, and the first protruding portion 512 is spaced from the second protruding portion 521. The second bracket 52 has a fixed state or a rotating state. As to how the second bracket 52 is made to have a fixed state or a rotating state, the present application will be described in detail below. In addition, the first elastic member 53 may be disposed in the buffer slot 511, and the first elastic member 53 is elastically abutted between the first protruding portion 512 and the second protruding portion 521. The first elastic member 53 is a structural member having elasticity, alternatively, the first elastic member 53 may be a spring or elastic foam, or the like.

First, in the present embodiment, the first protruding portion 512 and the second protruding portion 521 are connected by the first elastic member 53, so that the first bracket 51 and the second bracket 52 are connected, and thus the first bracket 51 and the second bracket 52 can perform the interlocking rotation. That is, the rotation of the first bracket 51 may drive the second bracket 52 to rotate, and the rotation of the second bracket 52 may also drive the first bracket 51 to rotate. Secondly, since the first elastic member 53 has elasticity, flexible connection of the sun gear 23 and the planetary gears 22 can be achieved by the first elastic member 53, for example, when the ring gear 21 is blocked in the movement of the linked planetary gears 22 rotating around the sun gear 23, the first elastic member 53 is deformed and compressed by the reaction force. When the gear ring 21 is linked with the planetary gears to do reverse rotation motion around the sun gear 23, the first elastic piece 53 releases compressive stress to push the sun gear 23 to reset, so that the clamping stagnation phenomenon in gear transmission can be effectively prevented, and the force required by reverse reset can be effectively reduced.

Referring to fig. 8-11 together, fig. 8 is a schematic perspective view of a driving mechanism according to another embodiment of the present application. Fig. 9 is a schematic cross-sectional view of a driving mechanism along A-A in a further embodiment of the present application. Fig. 10 is a schematic view of the second bracket in a rotating state according to an embodiment of the present application. Fig. 11 is a top view of a drive mechanism according to an embodiment of the present application. In this embodiment, the driving mechanism 1 further includes a handle bracket 54 and a housing 60, the handle bracket 54 is slidably connected to the second bracket 52, and a sliding direction of the handle bracket 54 is perpendicular to a rotation direction of the sun gear 23. The housing 60 has a receiving space 61, the planetary gear assembly 20 and at least a portion of the motor 10 are disposed in the receiving space 61, a through hole 62 communicating with the receiving space 61 is formed in the housing 60, a portion of the handle support 54 penetrates through the through hole 62, at least a portion of a side wall of the through hole 62 is provided with a fastening portion 63 in a protruding manner, and the fastening portion 63 and the handle support 54 are mutually matched to achieve connection and separation of the fastening portion 63 and the handle support 54.

The present embodiment will describe in detail how the second bracket 52 is made to have a fixed state or a rotated state. Specifically, the handle support 54 and the housing 60 may be added, and the handle support 54 is slidably connected to the second support 52, and the sliding direction (the direction shown as D1 in fig. 8) of the handle support 54 is perpendicular to the rotation direction (the direction shown as D2 in fig. 8) of the sun gear 23. It is also understood that the handle bracket 54 is not only connected to the second bracket 52, but also slides relative to the second bracket 52.

In addition, the housing 60 is a shell of the driving mechanism 1, and a part of structural components can be disposed in the accommodating space 61 in the housing 60, so as to provide a mounting foundation and a protection foundation for the structural components of the driving mechanism 1. The housing 60 is provided with a through hole 62, a part of the handle support 54 penetrates through the through hole 62, the rest of the handle support 54 is arranged outside the accommodating space 61 of the housing 60, and the handle support 54 arranged outside the accommodating space 61 is used for installing other structural members or is directly used for a user to operate. In this embodiment, a fastening portion 63 may be provided on at least a portion of a side wall of the through hole 62, and the fastening portion 63 cooperates with the handle support 54 to limit rotation of the handle support 54.

As shown in fig. 9 and 11, the locking portion 63 is provided with a limiting groove 64, the handle support 54 is provided with a limiting portion 56 in a protruding manner, when the handle support 54 is located in the limiting groove 64 of the limiting portion 56, the limiting groove 64 can limit the rotation of the limiting portion 56, so that the locking portion 63 is connected with the handle support 54, that is, the locking portion 63 on the housing 60 limits the rotation of the handle support 54, at this time, the rotation of the handle support 54 is limited by the housing 60, and the second support 52 is in a fixed state. As shown in fig. 10, in the process of moving the handle support 54 toward the second support 52, when the limiting portion 56 is separated from the limiting groove 64 or the limiting portion 56 is separated from the side wall of the through hole 62, the limiting groove 64 of the fastening portion 63 can not limit the limiting portion 56 of the handle support 54 any more, so that the handle support 54 can rotate, thereby driving the second support 52 to rotate, and the second support 52 has a rotating state, even if the fastening portion 63 is separated from the handle support 54.

Alternatively, when the sun gear 23 is to be fixed again, the handle bracket 54 may be moved in a direction away from the second bracket 52 again, and the limiting portion 56 may be disposed in the limiting groove 64 again, thereby limiting the rotation of the handle bracket 54 and, in turn, the rotation of the second bracket 52, the first bracket 51, and the sun gear 23.

Referring to fig. 12 together, fig. 12 is a schematic cross-sectional view of a driving mechanism along A-A direction according to another embodiment of the present application. In this embodiment, the driving mechanism 1 further includes a second elastic member 55, one end of the second elastic member 55 abuts against the handle bracket 54, and the other end of the second elastic member 55 abuts against the second bracket 52. The second elastic member 55 is in a compressed state when the handle holder 54 is moved in a direction approaching the second holder 52.

In the present embodiment, a second elastic member 55 may be added, and the handle holder 54 and the second holder 52 may be connected by the second elastic member 55. The second elastic member 55 is in a compressed state when the handle holder 54 is moved in a direction approaching the second holder 52. At this time, the second elastic member 55 has a resilient force, and when the external force on the handle support 54 is removed, the handle support 54 can automatically move along a direction away from the second support 52 under the resilient force of the elastic member, and the limiting portion 56 is disposed in the limiting groove 64 again, so as to limit the rotation of the handle support 54, and further limit the rotation of the second support 52, the first support 51, and the sun gear 23.

Optionally, a first receiving groove 57 is formed on a side of the handle support 54, which is close to the second support 52, and a part of the second elastic member 55 is disposed in the first receiving groove 57. In this embodiment, the handle support 54 may be provided with a first receiving groove 57 on a side close to the second support 52, and a part of the second elastic member 55 may be disposed in the first receiving groove 57, so that not only the limiting capability of the second elastic member 55 may be improved, but also the size of the driving mechanism 1 may be reduced, and the mechanism may be simplified.

Referring again to fig. 5, in the present embodiment, the motor 10 is disposed on a first side 24 of the planetary gear 22 assembly, the support assembly 50 is disposed on a second side 25 of the planetary gear 22 assembly, and the first side 24 is disposed adjacent to the second side 25.

As can be seen from the above, the driving mechanism 1 provided in this embodiment may include the motor 10, the planetary gear 22 assembly, and the bracket assembly 50. For the arrangement relation of the three. The motor 10 is disposed on a first side 24 of the planetary gear 22 assembly, the carrier assembly 50 is disposed on a second side 25 of the planetary gear 22 assembly, and the first side 24 is disposed adjacent to the second side 25. It will also be appreciated that the motor 10 and the carrier assembly 50 are provided on adjacent sides of the planetary gear 22 assembly, which reduces the size of the drive mechanism 1 in the length direction and increases the size in the thickness direction, thereby approximating a small and thick structure for the drive mechanism 1.

The above describes the specific structure of the drive mechanism 1 and the connection relationship and transmission relationship when the ring gear 21 is in the fixed state. Next, the present application will continue to describe a second implementation provided herein. Referring to fig. 13-15 together, fig. 13 is a schematic perspective view of a driving mechanism according to another embodiment of the present application. Fig. 14 is a top view of fig. 13. Fig. 15 is a schematic cross-sectional view along B-B in fig. 14 in an embodiment of the present application. In this embodiment, when the ring gear 21 is in a fixed state, the cage 30 may be directly controlled to rotate, and the planet gears 22 are driven to rotate, so as to drive the sun gear 23 to rotate, so that the planet gears 22 rotate relative to the ring gear 21.

In a first implementation, the handle support 54 rotates the support assembly 50, which in turn rotates the sun gear 23, which in turn rotates the planet gears 22, which in turn rotates the cage 30. While in a second implementation the rotation of the cage 30 may be directly controlled (e.g., using the handle bracket 54 to connect the cage 30 and thereby directly control the rotation of the cage 30). Rotation of the retainer 30 may move the subsequent lock cylinder to open and close the door. And the rotation of the retainer 30 can also drive the planet wheel 22 to rotate and drive the sun wheel 23 to rotate, so as to drive the bracket assembly 50 to rotate, thereby realizing the rotation of the joint structure and preventing the jamming phenomenon.

In this embodiment, the cage 30 can be directly controlled to rotate, so as to switch the door, the transmission process between the bracket assembly 50, the sun wheel 23 and the planet wheel 22 is omitted, the transmission time can be reduced, the loss in the transmission process is reduced, and the stability and accuracy of transmission are improved.

Specifically, please refer to fig. 5-7 again. In this embodiment, the driving mechanism 1 further includes a bracket assembly 50, the bracket assembly 50 includes a first bracket 51, a second bracket 52, and a first elastic member 53, the sun gear 23 is connected to one side of the first bracket 51, a buffer slot 511 is formed on the other side of the first bracket 51, and a first protrusion portion 512 is protruding from a side wall of the buffer slot 511.

The second bracket 52 has a second protruding portion 521 protruding from a peripheral edge thereof, and the second protruding portion 521 is disposed in the buffer groove 511.

The first elastic member 53 is disposed in the buffer groove 511, and the first elastic member 53 elastically abuts between the first protruding portion 512 and the second protruding portion 521.

The first bracket 51, the second bracket 52, and the first elastic member 53 have the same structure as described above, and will not be described herein. The bracket assembly 50 provided in this embodiment can realize flexible connection, so that not only can the jamming phenomenon in gear transmission be effectively prevented, but also the force required during reverse reset can be effectively reduced.

Referring to fig. 13-16, fig. 16 is an exploded view of a driving mechanism according to an embodiment of the present application. In this embodiment, the driving mechanism 1 further includes a third bracket 58, a handle bracket 54, and a housing 60, where the third bracket 58 is slidably connected to the second bracket 52, the handle bracket 54 is slidably connected to the bracket assembly 50, and sliding directions of the third bracket 58 and the handle bracket 54 are perpendicular to the rotation direction of the sun gear 23; the handle bracket 54 may be coupled to or decoupled from the holder 30;

the housing 60 has a receiving space 61, the planetary gear assembly 20 and at least a portion of the motor 10 are disposed in the receiving space 61, a through hole 62 communicating with the receiving space 61 is formed in the housing 60, the handle support 54 penetrates through the through hole 62, at least a portion of a side wall of the through hole 62 is provided with a fastening portion 63 in a protruding manner, the fastening portion 63 and the third support 58 are mutually matched to achieve connection or separation, and the third support 58 has a fixed state or a rotating state.

In order to achieve the above object, the driving mechanism 1 of the present embodiment may further include a third bracket 58, a handle bracket 54, and a housing 60. The handle bracket 54 is slidably coupled to the bracket assembly 50, and the handle bracket 54 may be coupled to or decoupled from the holder 30. The sliding direction of the handle holder 54 is perpendicular to the rotation direction of the sun gear 23 (as shown in the direction D1 in fig. 15 and 16). It will also be appreciated that the handle bracket 54 is slidable relative to the bracket assembly 50 and may be attached to or detached from the holder 30. When the handle bracket 54 is connected to the holder 30, rotation of the handle bracket 54 (i.e., in a direction parallel to the rotation of the sun gear 23, as shown in fig. 15 and fig. 16 at D2) may cause rotation of the holder 30. When the handle bracket 54 is separated from the holder 30, the rotation of the handle bracket 54 and the holder 30 do not interfere with each other.

In addition, the handle support 54 may protrude from the housing 60 through a through hole 62 for sliding and rotating by the user.

Likewise, the third bracket 58 is slidably connected to the second bracket 52, and the third bracket 58 can be connected to or disconnected from the fastening portion 63 of the housing 60. The sliding direction of the third bracket 58 is perpendicular to the rotation direction of the sun gear 23 (as also shown in the direction D1 in fig. 15 and 16). It will also be appreciated that the third bracket 58 is slidable relative to the second bracket 52 and may be coupled to or uncoupled from the housing 60. When the third bracket 58 is connected to the fastening portion 63, the housing 60 is not rotated, so that the third bracket 58 is also limited and keeps rotating fixedly, thereby further driving the second bracket 52, the first bracket 51, and the sun gear 23 to keep a fixed state. When the third bracket 58 is separated from the engaging portion 63, the third bracket 58 is rotated (the rotation direction is also shown in the direction D2 in fig. 15 and 16), so that the second bracket 52, the first bracket 51, and the sun gear 23 can all be rotated.

Alternatively, the handle support 54 and the third support 58 may slide simultaneously or separately. And the rotation of the handle bracket 54 and the third bracket 58 are independent rotation, respectively.

Based on the above structure, this embodiment describes in detail two specific processes of movement of the lower holder 30: when the sun gear 23 is in a fixed state (i.e. when the third bracket 58 is connected with the fastening portion 63), the motor 10 drives the gear ring 21 to rotate, and drives the planet gears 22 to rotate, so as to drive the retainer 30 to rotate. At this time, if the handle bracket 54 is connected to the holder 30, the handle bracket 54 is also rotated together. At this time, if the handle bracket 54 is separated from the holder 30, the handle bracket 54 is in a stationary state.

When the ring gear 21 is in a fixed state, the handle bracket 54 is connected with the retainer 30, and the fastening part 63 is controlled to be separated from the third bracket 58; the handle support 54 rotates to drive the retainer 30 to rotate and drive the planetary gears 22 to rotate, thereby driving the sun gear 23 to rotate and finally driving the support assembly 50 to rotate. The handle bracket 54 drives the retainer 30 to rotate, but still the retainer 30 is required to drive the sun gear 23 and the bracket assembly 50 to rotate, so as to prevent the jamming phenomenon.

In addition, fig. 13-16 are schematic views with the first elastic member 53 removed, so that the structure is clearer, and the reader is more easily aware, and the first elastic member 53 is not represented in fig. 13-16.

Referring to fig. 16 again, in the present embodiment, the third bracket 58, the second bracket 52, the first bracket 51, and the sun gear 23 are provided with through holes 500 to enable the handle bracket 54 to slide, one end of the handle bracket 54 near the holder 30 is provided with a first connecting portion 33, the holder 30 is provided with a second connecting portion 34, and the first connecting portion 33 and the second connecting portion 34 cooperate to realize that the handle bracket 54 is connected with the holder 30.

In this embodiment it is described how the handle bracket 54 can be slid and attached to the holder 30. The third bracket 58, the second bracket 52, the first bracket 51 and the sun gear 23 may be provided with a through hole 500, that is, the through hole 500 is formed on the whole bracket assembly 50 and the sun gear 23 to enable the handle bracket 54 to slide, so that the handle bracket 54 can be close to or far away from the holder 30. Then, a first connecting portion 33 is provided at an end of the handle support 54 near the holder 30, and a second connecting portion 34 is provided on the holder 30, where the first connecting portion 33 cooperates with the second connecting portion 34 to connect the handle support 54 to the holder 30.

Alternatively, the first connection portion 33 is a connection block, the second connection portion 34 is a connection hole, and the connection block and the connection hole are polygonal in shape, so that the handle bracket 54 can be connected to the holder 30 when the connection block is inserted into the connection hole.

Referring again to fig. 15, in the present embodiment, the handle holder 54 is connected to the cage 30 when the ring gear 21 is in a fixed state.

In this embodiment, when the gear ring 21 is in the fixed state, the handle bracket 54 is connected to the cage 30, so that only the third bracket 58 is required to be separated from the fastening portion 63, and the handle bracket 54 can be rotated to directly rotate the cage 30, so that the time for connecting the handle bracket 54 to the cage 30 is reduced, and the driving time and the driving difficulty are reduced.

Referring to fig. 13-16 again, in the present embodiment, the driving mechanism 1 further includes a connecting piece 80, the connecting piece 80 is disposed between the third bracket 58 and the handle bracket 54, and the connecting piece 80 is clamped between the third bracket 58 and the handle bracket 54 in a direction perpendicular to the rotation direction of the sun gear 23; when the handle support 54 slides, the third support 58 can be driven to slide, so as to connect or disconnect the third support 58 with or from the fastening portion 63.

In the present embodiment, a connector 80 may be added. The third bracket 58 and the handle bracket 54 are engaged with each other by a connecting member 80 in a direction perpendicular to the rotation direction of the sun gear 23. That is, the third bracket 58 and the handle bracket 54 may be connected together by the connection member 80 in a direction perpendicular to the rotation direction of the sun gear 23, and the handle bracket 54 and the third bracket 58 may be rotated independently of each other in a direction parallel to the rotation direction of the sun gear 23. Thus, when the handle bracket 54 slides, the third bracket 58 can be driven to slide together, and the transmission difficulty is further reduced.

Optionally, the connector 80 is an E-clip.

In addition, the handle bracket 54 is further provided with a first limiting portion 81, the through hole 500 of the second bracket 52 is provided with a second limiting portion 82, and the first limiting portion 81 and the second limiting portion 82 cooperate to limit the position of the handle bracket 54. The first limiting portion 81 and the second limiting portion 82 can be used to limit the position of the handle support 54 away from the holder 30, so as to prevent the handle support 54 from falling from the through hole 500. And the attachment 80 is provided to limit the handle bracket 54 from falling out toward the holder 30. Therefore, the first limiting portion 81, the second limiting portion 82, and the connecting member 80 can be used to limit the position and the sliding distance of the handle support 54, so as to prevent the handle support 54 from falling.

Referring to fig. 17, fig. 17 is a schematic diagram of a housing and a third bracket according to an embodiment of the disclosure. In this embodiment, the fastening portion 63 includes a plurality of fastening blocks 630 disposed at intervals, and a plurality of fastening slots 580 disposed at intervals are disposed at the outer periphery of the third bracket 58; when the third bracket 58 slides and the clamping block 630 is disposed in the clamping groove 580, the clamping part 63 is connected with the third bracket 58; when the third bracket 58 slides and the latch 630 is disengaged from the latch 580, the latch 63 is separated from the third bracket 58.

In the present embodiment, the fastening portion 63 includes a plurality of fastening blocks 630, the outer periphery of the third bracket 58 is provided with a plurality of fastening slots 580, and when the fastening blocks 630 are disposed in the fastening slots 580 in a direction parallel to the rotation direction of the sun gear 23, the fastening blocks 630 and the fastening slots 580 can be utilized to limit the rotation of the third bracket 58, so that the third bracket 58 is in a fixed state. When the latch 630 is disengaged from the latch 580, the third bracket 58 is separated from the housing 60, thereby allowing rotation. The separation method may be achieved by sliding the third bracket 58 in a direction toward the holder 30. When the sun gear 23 is to be fixed, the third bracket 58 is slid in a direction away from the holder 30, and the latch 630 is slid into the latch 580.

Alternatively, the number of the clamping blocks 630 and the clamping grooves 580 is 4, and the 4 clamping blocks 630 and the 4 clamping grooves 580 are uniformly arranged, i.e. the angle between two adjacent clamping blocks 630 and two adjacent clamping grooves 580 is 90 °. Thus, when the user presses and rotates the handle holder 54, the handle holder 54 is rotated only by 90 ° when it is reset. When the user releases his or her hand, the locking block 630 can be returned to the locking groove 580 again, so as to connect the third bracket 58 with the locking portion 63.

Referring to fig. 18, fig. 18 is a schematic cross-sectional view along the direction B-B in fig. 14 according to another embodiment of the present application. In this embodiment, the driving mechanism 1 further includes a third elastic member 59, a second receiving groove is formed in a side of the second bracket 52 adjacent to the holder 30, a portion of the third elastic member 59 is disposed in the second receiving groove, and the third elastic member 59 abuts against the third bracket 58 and the second bracket 52; the third elastic member 59 is in a compressed state when the handle bracket 54 is slid toward the direction approaching the holder 30.

In the present embodiment, a third elastic member 59 may be added, and the third elastic member 59 may be abutted against the third bracket 58 and the second bracket 52. Thus, when the handle support 54 slides in a direction approaching the cage 30, that is, the gear ring 21 is fixed, the user needs to rotate the cage 30 by rotating the handle support 54, and then presses the handle support 54 to separate the third support 58 from the housing 60, and then the third elastic member 59 is compressed. Thus, after the rotation is completed, only the handle bracket 54 needs to be released, and the third elastic member 59 can drive the third bracket 58 to be fixed with the housing 60 again under the resilience force of the third elastic member 59, so that the purpose of automatic fixation is achieved.

Referring to fig. 19-20 together, fig. 19 is a schematic cross-sectional view of a driving mechanism along A-A direction according to another embodiment of the present application. Fig. 20 is a top view of a drive mechanism according to another embodiment of the present application. In this embodiment, the driving mechanism 1 further includes a universal joint 70, and the universal joint 70 is rotatably connected to the other side of the holder 30; the cage 30 has a first rotational direction and the gimbal 70 has a second rotational direction, the first rotational direction intersecting the second rotational direction; the universal joint 70 is provided with a second accommodating groove 71, and the second accommodating groove 71 is used for connecting a lock cylinder.

As can be seen from the foregoing, another structural lock cylinder in the door lock is connected to the other side of the cage 30, with the lock cylinder and planetary gear 22 assemblies being disposed on opposite sides of the cage 30. The lock cylinder is preferably vertically connected with the retainer 30, so that the driving mechanism 1 and the lock cylinder are concentric in the butt joint and linkage processes, and the force on the retainer 30 is better transmitted to the lock cylinder, thereby reducing unlocking difficulty. Therefore, in the present embodiment, the universal joint 70 may be added to the driving mechanism 1, the universal joint 70 may be rotatably connected to the other side of the holder 30, the second receiving groove 71 may be formed in the universal joint 70, and the lock cylinder may be connected by the second receiving groove 71.

In addition, the cage 30 has a first rotational direction (as indicated by the direction D3 in fig. 20), and the universal joint 70 has a second rotational direction (as indicated by the direction D4 in fig. 19), the first rotational direction intersecting the second rotational direction. It is also understood that the first direction of rotation is not parallel to the second direction of rotation. Thus, when the lock cylinder is installed in the second accommodating groove 71, the rotation of the universal joint 70 can be utilized to offset the deflection angle of the lock cylinder and the retainer 30, so that the force on the retainer 30 is better transmitted to the lock cylinder, and the problem of non-concentricity of the driving mechanism 1 and the lock cylinder in the process of abutting and linkage is corrected and solved.

Referring to fig. 21-22 together, fig. 21 is a schematic diagram illustrating the universal joint rotating along the first sub-rotation direction according to an embodiment of the present application. FIG. 22 is a schematic view of a gimbal in one embodiment of the present application rotated in a second sub-rotational direction. In the present embodiment, a third protrusion 72 is protruding from the other surface of the holder 30, a first rotation space 73 is formed around the third protrusion 72, the universal joint 70 includes a first rotation portion 74 and a second rotation portion 75, the first rotation portion 74 is provided in the first rotation space 73, and the first rotation portion 74 is rotatably connected to the third protrusion 72. The first rotating portion 74 has a second rotating space 76 therein, the second rotating portion 75 is disposed in the second rotating space 76, the second rotating portion 75 is rotatably connected to the first rotating portion 74, and the second rotating portion 75 has the second receiving groove 71 therein. The first rotating portion 74 has a first sub-rotating direction, the second rotating portion 75 has a second sub-rotating direction, the first sub-rotating direction intersects the second sub-rotating direction, and both the first sub-rotating direction and the second sub-rotating direction intersect the second rotating direction.

In the present embodiment, the third protruding portion 72 may be provided protruding from the holder 30, the first rotating portion 74 and the second rotating portion 75 of the universal joint 70 may be provided in the first rotating space 73 in the third protruding portion 72, the first rotating portion 74 may be connected to the third protruding portion 72 by rotating, and the first rotating portion 74 and the third protruding portion 72 may be connected in parallel by the rotating shaft 78 by being excessively engaged. This allows the first rotating portion 74 to have a first sub-rotation direction (as indicated by direction D5 in fig. 21). The second rotating part 75 may be disposed in a second rotating space 76 in the first rotating part 74, and the second rotating part 75 may be rotationally connected to the first rotating part 74, so that the second rotating part 75 and the first rotating part 74 are vertically and transitionally connected through a rotating shaft 78. The second rotating portion 75 thus has a second sub-rotation direction (as indicated by direction D6 in fig. 22). A second receiving groove 71 for connecting the key cylinder is provided in the second rotating portion 75.

The second rotation direction mentioned in the above embodiment may be formed by combining the first sub rotation direction and the second sub rotation direction. In this embodiment, the first sub-rotation direction may intersect the second sub-rotation direction, and the first sub-rotation direction and the second sub-rotation direction may intersect the second rotation direction. This allows the universal joint 70 to have more rotational directions, thereby further correcting and solving the problem of misalignment of the drive mechanism 1 and the lock cylinder during the mating and interlocking process.

Alternatively, referring to fig. 19-20 again, in this embodiment, the third protrusion 72 is provided with a via hole 77, the universal joint 70 further includes a rotation shaft 78 and a protection portion 79, the rotation shaft 78 penetrates the via hole 77 and is connected to the first rotation portion 74, and the protection portion 79 is sleeved on the third protrusion 72 so that the rotation shaft 78 abuts against the protection portion 79.

The first rotating portion 74 is rotatably connected to the third protruding portion 72, at this time, the third protruding portion 72 is provided with a through hole 77, and the rotating shaft 78 penetrates through the through hole 77 and is connected to the first rotating portion 74, so that the first rotating portion 74 is rotatably connected to the third protruding portion 72. In the present embodiment, a protection portion 79 may be provided outside the third protruding portion 72, and the protection portion 79 may be fitted around the third protruding portion 72 so that the rotation shaft 78 abuts against the protection portion 79, thereby preventing the rotation shaft 78 from falling from the through hole 77.

The embodiment of the application also provides a door lock, which comprises a lock cylinder and the driving mechanism 1 provided by the embodiment of the application, wherein the lock cylinder is connected to the other side of the retainer 30, and the lock cylinder moves under the rotation of the retainer 30, so that the door is opened and closed.

The door lock provided by the embodiment of the application can realize the door opening and closing by adopting the motor 10 to control the gear ring 21 to rotate or controlling the sun gear 23 to rotate in two modes by adopting the driving mechanism 1 provided by the embodiment of the application, so that the method for controlling the door lock is increased, the problem that the door cannot be opened and closed due to the damage of the motor 10 in a single motor 10 lock is avoided, and the difficulty and risk of opening the door are reduced.

The foregoing has outlined rather broadly the more detailed description of the embodiments of the present application in order that the principles and embodiments of the present application may be explained and illustrated herein, the above description being provided for the purpose of facilitating the understanding of the method and core concepts of the present application; meanwhile, as those skilled in the art will have modifications in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.

Claims

1. A drive mechanism for a door lock, the drive mechanism comprising:

a motor;

the planetary gear assembly comprises a gear ring, a planet wheel and a sun wheel, the motor is rotationally connected with the gear ring, the gear ring is provided with an accommodating space, the planet wheel and the sun wheel are both arranged in the accommodating space, and the planet wheel is rotationally connected between the sun wheel and the gear ring; and

The retainer is arranged on one side of the planetary gear assembly, the gear ring and the sun gear are both abutted against the retainer, and the planetary gears are connected with the retainer; when the sun gear is in a fixed state, the gear ring is driven by the motor to rotate so that the planet gears rotate relative to the sun gear and further drive the retainer to rotate; or when the gear ring is in a fixed state, the sun gear is controlled to rotate so that the planet gears rotate relative to the gear ring, and the retainer is driven to rotate;

the solar energy storage device comprises a support assembly, a solar energy storage device and a solar energy storage device, wherein the support assembly comprises a first support, a second support and a first elastic piece, the solar energy storage device is connected to one side of the first support, a buffer groove is formed in the other side of the first support, and a first protruding portion is protruding from the side wall of the buffer groove;

the first elastic piece is arranged in the buffer groove and elastically abuts between the first protruding part and the second protruding part;

A universal joint rotatably connected to the other side of the holder; the cage has a first rotational direction, the gimbal has a second rotational direction, and the first rotational direction intersects the second rotational direction; the universal joint is provided with a second accommodating groove which is used for connecting the lock cylinder;

a third bulge part is arranged on the surface of the other side of the retainer in a protruding way, a first rotating space is formed by surrounding the third bulge part, the universal joint comprises a first rotating part and a second rotating part, the first rotating part is arranged in the first rotating space, and the first rotating part is rotationally connected with the third bulge part;

2. The drive mechanism of claim 1, further comprising a handle bracket and a housing, the handle bracket being slidably coupled to the second bracket, and a sliding direction of the handle bracket being perpendicular to a rotational direction of the sun gear;

3. The drive mechanism of claim 2, further comprising a second elastic member, one end of the second elastic member abutting the handle bracket, the other end of the second elastic member abutting the second bracket, the second elastic member being in a compressed state when the handle bracket moves in a direction approaching the second bracket.

4. A drive mechanism according to claim 3, wherein a first receiving recess is provided in a side of the handle support adjacent the second support, and a portion of the second resilient member is provided in the first receiving recess.

5. The drive mechanism of claim 1, wherein when the ring gear is in a fixed state, the cage is directly controllable to rotate and drive the planet gears to rotate, thereby driving the sun gear to rotate so as to rotate the planet gears relative to the ring gear.

6. The driving mechanism according to claim 5, further comprising a bracket assembly, wherein the bracket assembly comprises a first bracket, a second bracket and a first elastic member, the sun gear is connected to one side of the first bracket, a buffer slot is formed on the other side of the first bracket, and a first protruding portion is protruding from the side wall of the buffer slot;

7. The drive mechanism of claim 6, further comprising a third bracket, a handle bracket and a housing, wherein the third bracket is slidably connected to the second bracket, the handle bracket is slidably connected to the bracket assembly, and the sliding directions of the third bracket and the handle bracket are perpendicular to the rotation direction of the sun gear; the handle bracket can be connected with or separated from the retainer;

8. The drive mechanism of claim 7, wherein when the ring gear is in a fixed state, the handle bracket is connected to the cage and the snap-fit portion is controlled to be separated from the third bracket; the handle support rotates to drive the retainer to rotate and drive the planet gears to rotate, so that the sun gear is driven to rotate, and finally the support assembly is driven to rotate.

9. The drive mechanism of claim 7, wherein the third bracket, the second bracket, the first bracket, and the sun gear are provided with through holes to enable the handle bracket to slide, a first connecting portion is provided at one end of the handle bracket near the holder, a second connecting portion is provided on the holder, and the first connecting portion cooperates with the second connecting portion to enable the handle bracket to connect with the holder.

10. The drive mechanism of claim 8, wherein the handle mount has been coupled to the cage when the ring gear is in a stationary state.

11. The drive mechanism of claim 8, further comprising a connector disposed between the third bracket and the handle bracket, the connector being configured to engage the third bracket and the handle bracket in a direction perpendicular to a direction of rotation of the sun gear; when the handle support slides, the third support can be driven to slide, so that the third support is connected with or separated from the buckling part.

12. The driving mechanism as claimed in claim 8, wherein the fastening part comprises a plurality of fastening blocks arranged at intervals, and a plurality of fastening grooves arranged at intervals are arranged at the outer periphery of the third bracket; when the third bracket slides and the clamping block is arranged in the clamping groove, the clamping part is connected with the third bracket; when the third bracket slides and the clamping block is separated from the clamping groove, the clamping part is separated from the third bracket.

13. The driving mechanism as recited in claim 11 further comprising a third elastic member, wherein a second receiving groove is formed in a side of said second bracket adjacent to said retainer, a portion of said third elastic member is disposed in said second receiving groove, and said third elastic member abuts said third bracket and said second bracket; when the handle bracket slides towards the direction approaching the retainer, the third elastic piece is in a compressed state.

14. The drive mechanism of claim 1, wherein the motor is disposed on a first side of the planetary assembly and the carrier assembly is disposed on a second side of the planetary assembly, the first side being disposed adjacent to the second side.

15. The drive mechanism of claim 1, further comprising a worm gear and a worm, the worm being coupled to the motor, one end of the worm gear being rotatably coupled to the worm, the other end of the worm gear being rotatably coupled to the ring gear.

16. A door lock comprising a lock cylinder, and a drive mechanism according to any one of claims 1 to 15, the lock cylinder being connected to the other side of the holder, the lock cylinder being moved under rotation of the holder to effect opening and closing of the door.