CN112983139A

CN112983139A - Driving mechanism for door lock and door lock

Info

Publication number: CN112983139A
Application number: CN202110316631.4A
Authority: CN
Inventors: 苏祺云; 梁忠祥
Original assignee: Shenzhen Kaadas Intelligent Technology Co Ltd
Current assignee: Shenzhen Kaadas Intelligent Technology Co Ltd
Priority date: 2020-09-30
Filing date: 2021-03-24
Publication date: 2021-06-18
Anticipated expiration: 2041-03-24
Also published as: CN220565882U; CN112983139B

Abstract

The application provides a actuating mechanism, lock for lock. The driving mechanism comprises a motor, a planetary gear assembly and a retainer, the planetary gear assembly comprises a gear ring, a planetary wheel and a sun wheel, the motor is rotationally connected with the gear ring, the planetary 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 to the retainer, and the planetary wheel is connected with the retainer; when the sun gear is in a fixed state, the gear ring rotates under the driving of the motor. When the gear ring is in a fixed state, the sun gear, the planet gears and the retainer are matched with each other so that the planet gears rotate relative to the sun gear, and the retainer rotates. The motor is adopted to control the gear ring to rotate or the sun wheel to rotate to realize the opening and closing of the door, so that a method for controlling the door lock is added, the problem that the door cannot be opened or 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.

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 and a door lock for the door lock.

Background

As the population increases, so does the number of houses. Door locks are one of the important mechanisms that control the opening and closing of a house. Therefore, the demand and demand for door locks are also increasing. At present, a door lock usually adopts a motor lock, namely, a motor drives a lock cylinder to move so as to realize door opening and closing. However, once the motor or other mechanism parts of the motor lock are in failure, the whole motor lock cannot move, a user cannot open the door from the room, and the difficulty and the 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 motor is rotationally connected with the gear ring, an accommodating space is formed 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 to the retainer, and the planet gear is 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 gear rotates relative to the sun gear, and the retainer is driven to rotate; alternatively, when the ring gear is in a fixed state, the sun gear, the planet gears, and the cage may cooperate with each other such that the planet gears rotate relative to the sun gear and the cage rotates.

The actuating mechanism that this application first aspect provided through setting up planetary gear assembly, makes motor swivelling joint ring gear, the rotation of the steerable ring gear of motor promptly. Secondly, the planet wheel can be connected with the retainer, namely the planet wheel can control the rotation of the retainer. In addition, this application accessible ring gear, planet wheel and the mutually supporting of sun gear finally make the holder rotatory, thereby finally drive the lock core motion of connecting the holder and realize the switch door.

The specific matching method of the gear ring, the planet gear and the sun gear can be understood as that when the sun gear is in a fixed state, the gear ring is driven by the motor to rotate so that the planet gear rotates relative to the sun gear. The door can be opened and closed through the motor. When the motor breaks down and causes the unable rotation of ring gear, the ring gear is in fixed state this moment, accessible sun gear, planet wheel and the holder is mutually supported so that the planet wheel is rotatory relative the sun gear, just the holder is rotatory, finally realizes opening and shutting the door through the rotation of holder equally.

In conclusion, the driving mechanism provided by the application realizes door opening and closing by adopting the motor to control the gear ring to rotate or by adopting two ways of rotating the sun wheel, increases a method for controlling the door lock, avoids the problem that the door cannot be opened or closed due to the damage of the motor in a single motor lock, and reduces the difficulty and risk of door opening.

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

The driving mechanism further comprises a support assembly, the support assembly comprises a first support, a second support and a first elastic piece, the sun wheel 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 convexly arranged on the side wall of the buffer groove;

a second bulge is convexly arranged on the periphery of the second support, the second bulge is arranged in the buffer groove, and the second support is in a fixed state or a rotating state;

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

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

the planetary gear set comprises a shell, a planetary gear assembly and at least part of a motor, wherein the shell is internally provided with an accommodating space, the planetary gear assembly and at least part of the motor are arranged in the accommodating space, the shell is provided with a through hole communicated with the accommodating space, part of the handle support penetrates through the through hole, at least part of side wall of the through hole is convexly provided with a buckling part, and the buckling part and the handle support are mutually matched to realize connection or separation.

The driving mechanism further comprises a second elastic piece, one end of the second elastic piece is abutted to the handle support, the other end of the second elastic piece is abutted to 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.

A first accommodating groove is formed in one side, close to the second support, of the handle 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 gear is driven to rotate, and then the sun gear is driven to rotate, so that the planet gear rotates relative to the gear ring.

a second bulge is convexly arranged on the periphery of the second support and is arranged in the buffer groove;

The driving mechanism further comprises a third support, a handle support and a shell, the third support is connected with the second support in a sliding mode, the handle support is connected with the support assembly in a sliding mode, and the sliding directions of the third support and the handle support are perpendicular to the rotating direction of the sun wheel; the handle bracket can be connected with or separated from the retainer;

the shell is internally provided with an accommodating space, the planetary gear assembly and at least part of the motor are arranged in the accommodating space, the shell is provided with a through hole communicated with the accommodating space, the handle support penetrates through the through hole, at least part of side wall of the through hole is convexly provided with a buckling part, the buckling part and the third support are mutually matched to realize connection or separation, and the third support has a fixed state or a rotating state.

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

The handle support is provided with a first connecting part, the holder is provided with a second connecting part, and the first connecting part and the second connecting part are matched to realize the connection of the handle support and the holder.

Wherein the handle bracket is connected to the holder when the ring gear is in a fixed state.

The driving mechanism further comprises a connecting piece, the connecting piece is arranged between the third support and the handle support, and the connecting piece is used for clamping and connecting the third support and the handle support in a direction perpendicular to the rotation direction of the sun wheel; when the handle bracket slides, the third bracket can be driven to slide so as to realize the connection or separation of the third bracket and the buckling part.

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

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

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

The driving mechanism further comprises a universal joint, and the universal joint is rotatably connected to the other side of the retainer; the cage has a first rotational direction and the gimbal has a second rotational direction, the first rotational direction intersecting the second rotational direction; and a second accommodating groove is formed in the universal joint and 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 is rotationally connected with the third boss;

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

the first rotating portion has a first sub-rotating direction, the second rotating portion has a second sub-rotating direction, the first sub-rotating direction intersects the second sub-rotating direction, and the first sub-rotating direction and the second sub-rotating direction both intersect 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.

The second aspect of the present application provides a door lock, the door lock includes a lock cylinder and a driving mechanism as provided in the first aspect of the present application, the lock cylinder is connected to the other side of the holder, the lock cylinder is in the rotation of the holder moves down, thereby realizing opening and closing of the door.

The door lock that this application second aspect provided through the actuating mechanism who adopts this application first aspect to provide, can realize through adopting the rotation of motor control ring gear, perhaps realizes opening and shutting the door through the rotatory dual mode of control sun gear, has increased the method of control lock, has avoided in the single motor lock because of the problem of the unable opening and shutting of motor damage, has reduced the degree of difficulty and the risk of opening the door.

Drawings

In order to more clearly explain the technical solution 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 structural view of fig. 1 with the retainer removed.

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 taken along A-A of a drive mechanism according to 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 disclosure.

FIG. 9 is a schematic cross-sectional view taken along A-A of a drive mechanism according to yet another embodiment of the present application.

Fig. 10 is a schematic view of a 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 taken along A-A of a drive mechanism according to yet another 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 taken along line B-B of FIG. 14 according to 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 taken along the line B-B in FIG. 14, in accordance with another embodiment of the present application.

FIG. 19 is a schematic cross-sectional view taken along A-A of a drive mechanism according to yet another 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 gimbal rotating in the first sub-rotation direction according to an embodiment of the present application.

Fig. 22 is a schematic view of the gimbal rotating in the second sub-rotation direction according to an embodiment of the present application.

Description of reference numerals:

a driving mechanism-1, a motor-10, a planetary gear assembly-20, a ring gear-21, a containing space-211, a planetary gear-22, a sun gear-23, a first side-24, a second side-25, a retainer-30, a groove-31, a bulge-32, a first connecting part-33, a second connecting part-34, a transmission mechanism-40, a worm-41, a turbine-42, a gear assembly-43, a first gear-431, a second gear-432, a third gear-433, a first rotating shaft-434, a second rotating shaft-435, a bracket assembly-50, a through hole-500, a first bracket-51, a buffer groove-511, a first bulge-512, a second bracket-52 and a second bulge-521, the elastic clamping device comprises a first elastic element-53, a handle bracket-54, a second elastic element-55, a limiting part-56, a first accommodating groove-57, a third bracket-58, a clamping groove-580, a third elastic element-59, a shell-60, an accommodating space-61, a through hole-62, a buckling part-63, a clamping block-630, a limiting groove-64, a universal joint-70, a second accommodating groove-71, a third bulge-72, a first rotating space-73, a first rotating part-74, a second rotating part-75, a second rotating space-76, a through hole-77, a rotating shaft-78, a protecting part-79, a connecting piece-80, a first limiting part-81 and a second limiting part-82.

Detailed Description

The following is a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications are also considered as the protection scope of the present application.

Before the technical solutions of the present application are introduced, the technical problems in the related art will be described in detail.

One of the important structural components of a door is a door lock, which controls the opening, closing, locking, etc. of the door. In the prior art, a purely mechanical door lock structure is usually adopted, namely, a key is used for driving a structure in a door lock to move so as to realize door opening and closing. With the development of science and technology and the continuous change of the demands of users, electronic locks appear in the visual field of people and are popular with the users. The electronic lock does not need to use a key under the conventional condition, and the door can be opened and closed only by means of face recognition, password input, fingerprint input, voice recognition and the like through the built-in circuit to automatically drive the structure in the door lock to move. This brings great convenience and a sense of user experience. However, once a motor, a circuit structure or other structural members in the motor lock have a fault, and a problem occurs in a certain link in the motor lock, the motor lock cannot work normally, and a user outside the door cannot open the door to enter a room by using an electronic lock door opening method and can only enter the room by using a key door opening method. And the user in the door also can not open the door and walk out of the room, and at the moment, only a violent dismantling method can be adopted for the door or the door lock, so that irreversible loss is caused to the door, and the difficulty and the risk of unlocking are greatly increased.

Referring to fig. 1 to 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 structural view of fig. 1 with the retainer removed. 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, a planet wheel 22, and a sun wheel 23. The motor 10 is rotatably connected to the ring gear 21. The ring gear 21 has an accommodating space 211, the planet gear 22 and the sun gear 23 are both arranged in the accommodating space 211, and the planet gear 22 is rotatably connected between the sun gear 23 and the ring gear 21. And the retainer 30 is arranged on one side of the planetary gear assembly 20, the ring gear 21 and the sun gear 23 are both abutted against the retainer 30, and the planet gear 22 is connected with the retainer 30. 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 planet gear 22 rotates 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 sun gear 23, the planet gears 22, and the cage 30 may cooperate with each other such that the planet gears 22 rotate relative to the sun gear 23 and the cage 30 rotates.

The drive mechanism 1 according to the present embodiment is one of important components of a door lock. The door lock mainly comprises a driving mechanism 1, a lock core and a lock body. The lock body is arranged in the door, the lock cylinder is arranged in the lock body, and the pulling wheel of the lock cylinder can drive the lock tongue of the lock body to extend out or retract so as to open and close the door. The driving mechanism 1 is arranged outside the door and is simultaneously connected with the lock cylinder in the door, and the movement of the driving mechanism can drive the lock cylinder to move, so that the bolt can be extended out and retracted.

The driving mechanism 1 according to the present embodiment includes a motor 10 and a power supply. The motor 10 is electrically connected to a power source, the power source can provide required energy for the motor 10, and 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 or button cell battery. Further alternatively, the dry cell or button cell may be a lithium ion cell.

The drive mechanism 1 provided in the present embodiment further includes a planetary gear assembly 20. The planetary gear assembly 20 is made up of a plurality of structural members. For example, the planetary gear assembly 20 includes a ring gear 21, planet gears 22, and a sun gear 23. The names of the three structural members are all technical terms of the gear in the industry of the technical field. The ring gear 21 is a circular ring gear, the ring gear 21 has an accommodating space 211 therein, and the ring gear 21 has a circle of internal teeth and a circle of external teeth. The motor 10 is rotatably connected to the outer teeth of the ring gear 21. It will be appreciated that the external teeth of the motor 10 rotationally coupled to the ring gear 21 may be direct external teeth of the motor 10 to effect direct rotational coupling of the motor 10 to the ring gear 21. Or, another transmission mechanism 40 is further disposed between the motor 10 and the gear ring 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 gear ring 21. The motor 10 rotates to drive the transmission mechanism 40 to rotate, and the transmission mechanism 40 rotates to drive the gear ring 21 to rotate. It can now be seen that the motor 10 is indirectly rotationally coupled 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 gear 22 and the sun gear 23 both have one circle of external teeth, and the planet gear 22 and the sun gear 23 are both arranged in the accommodating space 211. The planet gears 22 are rotatably connected between the sun gear 23 and the ring gear 21. It is also understood that one end of the planet wheels 22 is rotationally connected to the internal teeth of the ring gear 21 and the opposite end of the planet wheels 22 is rotationally connected to the external teeth of the sun wheel 23. The whole planetary wheel 22 assembly is linked by three gears, namely a gear ring 21, a planetary wheel 22 and a sun wheel 23 through the planetary wheel 22. Alternatively, the number of the planet wheels 22 may be multiple, and each planet wheel 22 is arranged at regular intervals. For example the number of planet wheels 22 is 3 and each planet wheel 22 is arranged 120 deg. apart. This improves the rotational stability of the planet 22 assembly and the carrier 30.

The drive mechanism 1 provided in the present embodiment further includes a holder 30, wherein the holder 30 is a carrier on which the planetary gear assembly 20 and other structural members are mounted. The planetary gear assembly 20 is provided on one side of the mounting member and the lock cylinder is provided 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 holder 30, and the planet gears 22 are connected with the holder 30. Thus, the movement state of the carrier 30 is not affected by the rotation of the ring gear 21 and the sun gear 23. And the planet wheels 22 are connected with the retainer 30, so that the rotation of the planet wheels 22 can drive the retainer 30 to rotate together. Alternatively, the rotation of the cage 30 can also reverse the rotation of the planet wheels 22. And the rotation of the retainer 30 can further drive the lock cylinder to move, and finally the extension and the penetration of the lock tongue in the door lock are realized.

Alternatively, as shown in fig. 3, the holder 30 is provided with a groove 31, and the sun gear 23 is provided with a protrusion 32, wherein the protrusion 32 is arranged in the 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 through hole 500, and the protrusion 32 is provided in the through hole 500. This allows the sun gear 23 to abut against the holder 30, and also allows the position of the sun gear 23 to be restricted by the projection 32 and the groove 31.

The above description is the mechanical structure of the drive mechanism 1 provided in the present embodiment. As to how the movement of the drive mechanism 1 is specifically realized. In the embodiment, the gear ring 21, the planet wheel 22 and the sun wheel 23 are matched with each other to finally rotate the planet wheel 22 and the retainer 30, and finally the lock cylinder connected with the retainer 30 is driven to move, so that the door is opened and closed. The specific cooperation method of the ring gear 21, the planetary gear 22 and the sun gear 23 can be understood as that one of the ring gear 21 and the sun gear 23 is fixed, and the other of the ring gear 21 and the sun gear 23 and the planetary gear 22 rotate, so that the planetary gear 22 can revolve around the sun gear 23 and the retainer 30 rotates. 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 planet gear 22 rotates relative to the sun gear 23, and further drives the holder 30 to rotate, and the door can be opened and closed through the motor 10. When the motor 10 fails and cannot normally work, the ring gear 21 cannot rotate, and at the time, the ring gear 21 is in a fixed state, so that the planet gear 22 rotates relative to the sun gear 23 through the mutual cooperation of the sun gear 23, the planet gear 22 and the retainer 30, the retainer 30 rotates, and finally, the opening and closing of the door are also realized through the rotation of the retainer 30.

Alternatively, when the ring gear 21 is in a fixed state, two different implementations are provided, having different mechanical structures and transmission relationships, which will be described in detail later.

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 rotation of the gear ring 21 or the sun gear 23 to rotate to open or close the door, so that a method for controlling the door lock is added, the problem that the door cannot be opened or closed due to the damage of the motor 10 in the single-function motor 10 lock is avoided, and the difficulty and risk of opening the door are reduced.

Referring to fig. 1 to 4 again, in this 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 has been mentioned above that the electric machine 10 can be indirectly connected in rotation to the ring gear 21 via the transmission 40. In the present 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 single-stage speed ratio of the worm wheel 42 and the worm 41 is large, the noise is small during rotation, and the vibration is small. The worm wheel 42 and the worm 41 have a self-locking function. The self-locking function is understood to mean that the worm 41 rotates to rotate the linked worm wheel 42, but the worm 41 does not move to lock the worm wheel 42. 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 rotatably connected to the ring gear 21, and the other end of the turbine 42 is indirectly rotatably connected to the ring gear 21. Further optionally, the transmission mechanism 40 further includes a gear assembly 43, the gear assembly 43 includes a first gear 431, a second gear 432, a third gear 433, a first rotating shaft 434, and a second rotating shaft 435, the turbine 42 and the first gear 431 coaxially rotate in a linkage manner through the first rotating shaft 434, the first gear 431 is rotatably connected with the second gear 432, the second gear 432 and the third gear 433 coaxially rotate in a linkage manner through the second rotating shaft 435, and the third gear 433 is rotatably connected with the ring gear 21.

Please refer to fig. 5-7 together, 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 taken along A-A of a drive mechanism according to 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 of the present application when the ring gear 21 is in a stationary state. In a first implementation manner provided by 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 gear 22 rotates relative to the ring gear 21, and the retainer 30 is further driven to rotate. Thus, even when the motor 10 fails, the door can be opened and closed by controlling the rotation of the sun gear 23.

Specifically, referring 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 element 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 protruded from a sidewall of the buffer slot 511. A second protrusion 521 is protruded from the periphery of the second bracket 52, the second protrusion 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 slot 511, and the first elastic member 53 elastically abuts between the first protrusion 512 and the second protrusion 521.

The above description describes the sun gear 23 having a fixed state and a rotating state, and the present embodiment will describe how to fix and rotate the sun gear 23. Specifically, the present embodiment may be implemented by adding a bracket assembly 50, wherein 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 support 51, that is, the first support 51 can drive the sun gear 23 to rotate, and the sun gear 23 can also drive the first support 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 sidewall of the buffer slot 511.

The peripheral surface of the second bracket 52 is convexly provided with a second protruding portion 521, the second protruding portion 521 is arranged in the buffer slot 511, and the first protruding portion 512 and the second protruding portion 521 are arranged at intervals. The second bracket 52 has a fixed state or a rotating state. As to how the second bracket 52 is brought into a fixed state or a rotational 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 elastically abuts between the first protrusion 512 and the second protrusion 521. The first elastic member 53 is a structural member having elasticity, and alternatively, the first elastic member 53 may be a spring or an elastic foam, etc.

First, in the present embodiment, the first elastic member 53 connects the first protrusion 512 and the second protrusion 521, 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 rotate in conjunction with each other. That is, the rotation of the first bracket 51 can drive the second bracket 52 to rotate, and the rotation of the second bracket 52 can 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 hindered in the movement of the interlocking planetary gears 22 rotating around the sun gear 23, the first elastic member 53 is deformed and compressed by the reaction force. When the ring gear 21 is linked with the planet gears to do reverse rotation motion around the sun gear 23, the first elastic piece 53 releases the compression 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 taken along A-A of a drive mechanism according to yet another embodiment of the present application. Fig. 10 is a schematic view of a 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 rotating direction of the sun gear 23. The novel electric wrench is characterized in that an accommodating space 61 is formed in the shell 60, the planetary gear assembly 20 and at least part of the motor 10 are arranged in the accommodating space 61, a through hole 62 communicated with the accommodating space 61 is formed in the shell 60, part of the handle support 54 penetrates through the through hole 62, a buckling part 63 is convexly formed on at least part of the side wall of the through hole 62, and the buckling part 63 is matched with the handle support 54 to realize connection and separation of the buckling part 63 and the handle support 54.

This embodiment will describe in detail how the second bracket 52 has a fixed state or a rotating state. Specifically, a handle bracket 54 and a housing 60 may be added, and the handle bracket 54 is slidably connected to the second bracket 52, and the sliding direction of the handle bracket 54 (the direction shown as D1 in fig. 8) is perpendicular to the rotating direction of the sun gear 23 (the direction shown as D2 in fig. 8). It is also understood that the handle bracket 54 is not only connected to the second bracket 52, but also slidable with respect to the second bracket 52.

In addition, the housing 60 is a housing of the driving mechanism 1, and a part of structural members may be disposed in the accommodating space 61 in the housing 60, so as to provide an installation foundation and a protection foundation for the structural members of the driving mechanism 1. The casing 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 casing 60, and the handle support 54 arranged outside the accommodating space 61 is used for installing other structural members or directly providing operation for a user. In this embodiment, a locking portion 63 may be protruded on at least a portion of a sidewall of the through hole 62, and the locking portion 63 and the handle bracket 54 are engaged with each other to limit the rotation of the handle bracket 54.

As shown in fig. 9 and 11, the latching portion 63 is provided with a limiting groove 64, the handle bracket 54 is provided with a limiting portion 56 in a protruding manner, when the handle bracket 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 latching portion 63 is connected to the handle bracket 54, that is, the latching portion 63 on the housing 60 limits the rotation of the handle bracket 54, that is, the housing 60 limits the rotation of the handle bracket 54, so that the second bracket 52 has a fixed state. As shown in fig. 10, in the process of moving the handle bracket 54 toward the second bracket 52, when the position-limiting portion 56 is separated from the position-limiting groove 64 or the position-limiting portion 56 is separated from the sidewall of the through hole 62, the position-limiting groove 64 of the locking portion 63 can no longer limit the position of the position-limiting portion 56 of the handle bracket 54, so that the handle bracket 54 can rotate to drive the second bracket 52 to rotate, and the second bracket 52 has a rotating state even if the locking portion 63 is separated from the handle bracket 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, and the stopper portion 56 may be reset in the stopper groove 64, so that the rotation of the handle bracket 54 is restricted, and the rotation of the second bracket 52, the first bracket 51, and the sun gear 23 is restricted in turn.

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

In the present embodiment, a second elastic member 55 may be additionally provided, and the handle holder 54 and the second holder 52 may be connected by the second elastic member 55. When the handle holder 54 is moved toward the direction approaching the second holder 52, the second elastic member 55 is in a compressed state. At this time, the second elastic member 55 has a resilient force, and when the external force on the handle bracket 54 is removed, the handle bracket 54 can automatically move in a direction away from the second bracket 52 under the resilient force of the elastic member, and the position-limiting portion 56 is re-disposed in the position-limiting groove 64, so as to limit the rotation of the handle bracket 54, and thus, the rotation of the second bracket 52, the first bracket 51, and the sun gear 23 is sequentially limited.

Optionally, a first receiving groove 57 is formed on a side of the handle bracket 54 close to the second bracket 52, and a portion of the second elastic member 55 is disposed in the first receiving groove 57. In this embodiment, a first receiving groove 57 may be formed on the handle holder 54 on a side close to the second holder 52, and a portion of the second elastic member 55 may be disposed in the first receiving groove 57, so that the position-limiting capability of the second elastic member 55 may be improved, the size of the driving mechanism 1 may be reduced, and the mechanism may be simplified.

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

As can be seen from the above, the driving mechanism 1 provided in the present embodiment may include the motor 10, the planetary wheel 22 assembly, and the bracket assembly 50. The arrangement relationship of the three is shown. The motor 10 is disposed on a first side 24 of the planetary wheel 22 assembly, the bracket assembly 50 is disposed on a second side 25 of the planetary wheel 22 assembly, and the first side 24 and the second side 25 are disposed adjacent to each other. It will also be appreciated that the motor 10 and the carrier assembly 50 are located adjacent to each other on either side of the assembly of planet wheels 22, so that the drive 1 can be reduced in size in the length direction and increased in size in the thickness direction, thereby allowing the drive 1 to approximate a small and thick structure.

The above description describes the specific structure of the drive mechanism 1 and the connection relationship and the transmission relationship when the ring gear 21 is in the fixed state. Next, the present application will continue to describe the second implementation provided by the present application. 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 taken along line B-B of FIG. 14 according to an embodiment of the present application. In this embodiment, when the ring gear 21 is in a fixed state, the retainer 30 can be directly controlled to rotate, and the planet gear 22 is driven to rotate, so as to drive the sun gear 23 to rotate, so that the planet gear 22 rotates 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, and ultimately 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 thus directly control the rotation of the cage 30). The rotation of the retainer 30 can drive the subsequent lock core to move, thereby realizing the opening and closing of 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 component 50 to rotate, thereby realizing the rotation of the associated structure and preventing the occurrence of the blocking phenomenon.

In the embodiment, the rotation of the retainer 30 can be directly controlled, so that the opening and closing of the door are realized, the transmission process among the bracket assembly 50, the sun wheel 23 and the planet wheel 22 is omitted, the transmission time can be shortened, the loss in the transmission process is reduced, and the stability and the accuracy of the 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 provided on the other side of the first bracket 51, and a first protruding portion 512 is provided protruding from a side wall of the buffer slot 511.

A second protrusion 521 is protruded from the periphery of the second bracket 52, and the second protrusion 521 is disposed in the buffer slot 511.

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

The related contents of the first bracket 51, the second bracket 52 and the first elastic element 53 are the same as the above structure of the present application, and the detailed description of the present application is omitted. The bracket assembly 50 provided in this embodiment can achieve flexible connection, thereby not only effectively preventing the jamming phenomenon in the gear transmission, but also effectively reducing the force required for the reverse reset.

Referring to fig. 13-16, fig. 16 is an exploded view of a driving mechanism according to an embodiment of the present disclosure. In this embodiment, the driving mechanism 1 further includes a third bracket 58, a handle bracket 54 and a housing 60, wherein 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 the 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 connected to or separated from the holder 30;

the casing 60 is provided with an accommodating space 61, the planetary gear assembly 20 and at least part of the motor 10 are arranged in the accommodating space 61, the casing 60 is provided with a through hole 62 communicated with the accommodating space 61, the handle support 54 penetrates through the through hole 62, at least part of the side wall of the through hole 62 is convexly provided with a buckling part 63, the buckling part 63 and the third support 58 are mutually matched to realize connection or separation, and the third support 58 has a fixed state or a rotating state.

In order to achieve the above object, the drive 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 is coupled to or decoupled from the holder 30. The sliding direction of the handle bracket 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 coupled to the holder 30, rotation of the handle bracket 54 (i.e., rotation in a direction parallel to the rotation of the sun gear 23, as shown in the direction D2 in fig. 15 and 16) may cause rotation of the holder 30. When the handle holder 54 is separated from the holder 30, the rotation of the handle holder 54 and the holder 30 do not interfere with each other.

In addition, the handle bracket 54 may partially protrude from the housing 60 through the through hole 62 for the user to slide and rotate.

Similarly, the third bracket 58 is slidably connected to the second bracket 52, and the third bracket 58 can be connected to or separated from the latch 63 of the housing 60. The sliding direction of the third bracket 58 is perpendicular to the rotation direction of the sun gear 23 (also shown as 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 connected to or disconnected from the housing 60. When the third bracket 58 is connected to the locking portion 63, the housing 60 is not rotated, so that the third bracket 58 is restrained and kept to rotate, and the second bracket 52, the first bracket 51 and the sun gear 23 are further kept in a fixed state. When the third bracket 58 is separated from the locking portion 63, the third bracket 58 can rotate (the rotation direction is also shown as the direction D2 in fig. 15 and 16), so that the second bracket 52, the first bracket 51, and the sun gear 23 can rotate.

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

Based on the above structure, the present embodiment will describe two specific processes of the movement of the lower holder 30 in detail: when the sun gear 23 is in a fixed state (i.e. when the third carrier 58 is connected to the fastening portion 63), the ring gear 21 can be driven to rotate by the motor 10, and the planet gears 22 can be driven to rotate, so as to drive the holder 30 to rotate. At this time, if the handle holder 54 is coupled to the holder 30, the handle holder 54 is also rotated together. At this time, if the handle holder 54 is separated from the holder 30, the handle holder 54 is in a rest state.

When the gear ring 21 is in a fixed state, the handle bracket 54 is connected with the holder 30, and the buckling part 63 is controlled to be separated from the third bracket 58; the handle bracket 54 rotates to drive the holder 30 to rotate, and drives the planet wheel 22 to rotate, and further drives the sun wheel 23 to rotate, and finally drives the bracket assembly 50 to rotate. In fact, the handle bracket 54 rotates the holder 30 to achieve the purpose of the present application, but the holder 30 still rotates the sun gear 23 and the bracket assembly 50, which is to prevent the occurrence of the jamming phenomenon.

In addition, fig. 13-16 are schematic views with the first elastic member 53 removed for clarity and better understanding of the reader, and do not represent the absence of the first elastic member 53 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 a through hole 500 to enable the handle bracket 54 to slide, one end of the handle bracket 54 close to 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 enable the handle bracket 54 to be connected to the holder 30.

In this embodiment, it is described how the handle holder 54 is slidably 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 through holes 500, that is, the entire bracket assembly 50 and the sun gear 23 are provided with through holes 500 so that the handle bracket 54 can slide, and thus the handle bracket 54 can move closer to or away from the holder 30. Then, a first connecting portion 33 is provided at one end of the handle bracket 54 close to the holder 30, a second connecting portion 34 is provided on the holder 30, and the first connecting portion 33 and the second connecting portion 34 cooperate to connect the handle bracket 54 to the holder 30.

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

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

In the present embodiment, when the ring gear 21 is in the fixed state, the handle holder 54 can be connected to the holder 30, so that the handle holder 54 can be rotated to directly rotate the holder 30 only by separating the third holder 58 from the locking portion 63, thereby reducing the time for connecting the handle holder 54 to the holder 30 and reducing the driving time and the difficulty of transmission.

Referring to fig. 13 to 16 again, in this embodiment, the driving mechanism 1 further includes a connecting member 80, the connecting member 80 is disposed between the third bracket 58 and the handle bracket 54, and the connecting member 80 is connected with the third bracket 58 and the handle bracket 54 in a clamping manner in a direction perpendicular to the rotation direction of the sun gear 23; when the handle bracket 54 slides, the third bracket 58 can be driven to slide, so that the third bracket 58 is connected with or separated from the buckling part 63.

In the present embodiment, a connector 80 may be additionally provided. The third bracket 58 and the handle bracket 54 are clamped by a connecting piece 80 in a rotating direction perpendicular to the sun gear 23. That is, the third bracket 58 and the handle bracket 54 may be connected together by the connecting member 80 in the direction perpendicular to the rotation direction of the sun gear 23, and the handle bracket 54 and the third bracket 58 may be independently rotated in the direction parallel to the rotation direction of the sun gear 23. Therefore, 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-type circlip.

In addition, the handle bracket 54 is further provided with a first limiting part 81, the through hole 500 of the second bracket 52 is provided with a second limiting part 82, and the first limiting part 81 is matched with the second limiting part 82 to limit the position of the handle bracket 54. The first limiting portion 81 and the second limiting portion 82 can be used for limiting the position of the handle bracket 54 away from the holder 30, and the handle bracket 54 is prevented from falling from the through hole 500. And the attachment member 80 is also configured to limit the handle bracket 54 from falling out in a direction toward the holder 30. Therefore, the first position-limiting portion 81, the second position-limiting portion 82 and the connecting member 80 can be used for limiting the position and the sliding distance of the handle bracket 54, and the handle bracket 54 is prevented from falling off.

Please refer to fig. 17, fig. 17 is a schematic view illustrating a housing and a third bracket according to an embodiment of the present application. In this embodiment, the fastening portion 63 includes a plurality of fastening blocks 630 arranged at intervals, and the outer periphery of the third bracket 58 is provided with a plurality of fastening grooves 580 arranged at intervals; when the third bracket 58 slides and the latch 630 is disposed in the slot 580, the fastening portion 63 is connected to the third bracket 58; when the third bracket 58 slides and the latch 630 is disengaged from the latch slot 580, the latch portion 63 is separated from the third bracket 58.

In this embodiment, the locking portion 63 includes a plurality of locking blocks 630, and a plurality of locking slots 580 are disposed on an outer periphery of the third bracket 58, so that when the locking blocks 630 are disposed in the locking slots 580 in a direction parallel to the rotation direction of the sun gear 23, the locking blocks 630 and the locking slots 580 can be used 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 groove 580, the third bracket 58 is separated from the housing 60 and thus can rotate. The separation method may be accomplished by sliding the third bracket 58 toward the direction of approaching the holder 30. When the sun gear 23 needs to be fixed, the third bracket 58 only needs to slide in a direction away from the holder 30, so that the latch 630 enters the latch groove 580.

Optionally, the number of each of the latches 630 and the slots 580 is 4, and the 4 latches 630 and the 4 slots 580 are uniformly arranged, that is, an angle between two adjacent latches 630 and two adjacent slots 580 is 90 °. Thus, when the handle holder 54 is reset after the user presses and rotates the handle holder 54, only a 90 rotation is required. When the user releases his hand, the latch 630 can be returned to the latch slot 580, so as to connect the third bracket 58 with the latch portion 63.

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

In the present embodiment, a third elastic member 59 may be additionally provided, and the third elastic member 59 may be brought into contact with the third holder 58 and the second holder 52. Thus, when the handle bracket 54 slides towards the direction approaching the holder 30, i.e. the gear ring 21 is fixed, and the user needs to rotate the holder 30 by rotating the handle bracket 54, the user can press the handle bracket 54 to separate the third bracket 58 from the housing 60, and the third elastic element 59 can be in a compressed state. After the rotation is finished, the handle bracket 54 is only required to be released, and the third elastic member 59 can drive the third bracket 58 to be fixed with the shell 60 again under the resilience of the third elastic member 59, so that the purpose of automatic fixing is achieved.

Referring to fig. 19-20 together, fig. 19 is a schematic sectional view of a driving mechanism along a direction a-a 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; a second receiving groove 71 is formed in the universal joint 70, and the second receiving groove 71 is used for connecting a lock cylinder.

As can be seen from the above, the lock cylinder of the other structural component of the door lock is connected to the other side of the holder 30, and the lock cylinder and the planet wheel 22 assembly are respectively arranged on the two opposite sides of the holder 30. The lock core is preferably vertically connected with the retainer 30, so that the driving mechanism 1 and the lock core are concentric in the butt joint and linkage processes, and the force on the retainer 30 is better transmitted to the lock core, thereby reducing the unlocking difficulty. Therefore, in the present embodiment, a universal joint 70 is added to the drive mechanism 1, the universal joint 70 is rotatably connected to the other side of the holder 30, a second receiving groove 71 is formed in the universal joint 70, and the key cylinder is 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 gimbal 70 has a second rotational direction (as indicated by the direction D4 in FIG. 19) that intersects the first rotational direction. It is also to be understood that the first rotational direction is not parallel to the second rotational direction. When the lock cylinder is installed in the second accommodating groove 71, the angle of deflection between the lock cylinder and the retainer 30 can be offset by using the rotation of the universal joint 70, 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 butt joint and linkage processes is corrected and solved.

Referring to fig. 21 to 22 together, fig. 21 is a schematic view illustrating a gimbal rotating in a first sub-rotation direction according to an embodiment of the present application. Fig. 22 is a schematic view of the gimbal rotating in the second sub-rotation direction according to an embodiment of the present application. In this embodiment, a third protrusion 72 is protruded from the other surface of the retainer 30, the third protrusion 72 surrounds the first rotation space 73, the universal joint 70 includes a first rotation portion 74 and a second rotation portion 75, the first rotation portion 74 is disposed 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 protrusion 72 may be provided to the holder 30 in a protruding manner, the first rotation portion 74 and the second rotation portion 75 of the universal joint 70 may be provided in the first rotation space 73 in the third protrusion 72, the first rotation portion 74 may be rotatably connected to the third protrusion 72, and the first rotation portion 74 and the third protrusion 72 may be coupled in parallel to each other by the rotation shaft 78. This allows the first rotating portion 74 to have a first sub-rotating direction (as shown by direction D5 in fig. 21). Next, the second rotating portion 75 may be disposed in a second rotating space 76 in the first rotating portion 74, and the second rotating portion 75 may be rotatably connected to the first rotating portion 74, such that the second rotating portion 75 and the first rotating portion 74 are vertically and transitionally coupled via a rotating shaft 78. The second rotation portion 75 thus has a second sub-rotation direction (as shown by the 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 embodiments may be a composite of the first sub-rotation direction and the second sub-rotation direction. In addition, in the present embodiment, the first sub-rotation direction may intersect with the second sub-rotation direction, and both the first sub-rotation direction and the second sub-rotation direction intersect with the second rotation direction. This allows the universal joint 70 to have more rotational directions, thereby further correcting and solving the problem of non-concentricity between the drive mechanism 1 and the lock cylinder during docking and interlocking.

Optionally, referring to fig. 19 to 20 again, in this embodiment, a through hole 77 is formed on the third protrusion 72, the universal joint 70 further includes a rotating shaft 78 and a protection portion 79, the rotating shaft 78 penetrates through the through hole 77 and is connected to the first rotating portion 74, and the protection portion 79 is sleeved on the third protrusion 72 so that the rotating 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, a through hole 77 is formed on the third protruding portion 72, 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 this embodiment, a protection portion 79 may be provided outside the third protrusion portion 72, and the rotation shaft 78 may be prevented from falling out of the through hole 77 by fitting the protection portion 79 to the third protrusion portion 72 and abutting the rotation shaft 78 against the protection portion 79.

The embodiment of the present application further provides a door lock, the door lock includes a lock cylinder and a driving mechanism 1 provided as the above embodiment of the present application, the lock cylinder is connected to the other side of the holder 30, and the lock cylinder moves under the rotation of the holder 30, so as to realize the opening and closing of the door.

The door lock provided by the embodiment of the application can realize the rotation of the gear ring 21 controlled by the motor 10 or realize the door opening and closing by controlling the sun gear 23 to rotate in 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 the single motor 10 lock is avoided, and the difficulty and the risk of opening the door are reduced.

The foregoing detailed description has provided for the embodiments of the present application, and the principles and embodiments of the present application have been presented herein for purposes of illustration and description only and to facilitate understanding of the methods and their core concepts; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

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

a motor;

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 to the retainer, and the planet gear is 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 gear rotates relative to the sun gear, and the retainer is driven to rotate; alternatively, when the ring gear is in a fixed state, the sun gear, the planet gears, and the cage may cooperate with each other such that the planet gears rotate relative to the sun gear and the cage rotates.

2. The drive mechanism as recited in claim 1, wherein the sun gear is controlled to rotate when the ring gear is stationary, such that the planet gears rotate relative to the ring gear, which in turn rotates the cage.

3. The driving mechanism as claimed in claim 2, wherein the driving mechanism further comprises a bracket assembly, 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 protrusion is protruded from a side wall of the buffer slot;

4. The drive mechanism as recited in claim 3, further comprising a handle bracket and a housing, wherein the handle bracket is slidably connected to the second bracket, and the sliding direction of the handle bracket is perpendicular to the rotation direction of the sun gear;

5. The drive mechanism as recited in claim 4, further comprising a second resilient member having one end abutting said handle bracket and another end abutting said second bracket, said second resilient member being in compression when said handle bracket is moved toward said second bracket.

6. The driving mechanism as claimed in claim 5, wherein a first receiving slot is formed on a side of the handle bracket adjacent to the second bracket, and a portion of the second elastic member is disposed in the first receiving slot.

7. The drive mechanism of claim 1, wherein when the ring gear is stationary, the cage is directly controlled to rotate and cause the planet gears to rotate, which in turn cause the sun gear to rotate, causing the planet gears to rotate relative to the ring gear.

8. The driving mechanism as claimed in claim 7, wherein the driving mechanism further comprises a bracket assembly, 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 protrusion is protruded from a side wall of the buffer slot;

9. The drive mechanism as recited in claim 8, 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 third bracket and the handle bracket both slide in a direction perpendicular to the rotational direction of the sun gear; the handle bracket can be connected with or separated from the retainer;

10. The drive mechanism as recited in claim 9, wherein when said ring gear is in a fixed state, said handle bracket is coupled to said holder and said catch is controlled to disengage from said third bracket; the handle support rotates to drive the retainer to rotate, and drives the planet wheel to rotate, so as to drive the sun wheel to rotate, and finally drive the support assembly to rotate.

11. The driving mechanism as claimed in claim 9, 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, one end of the handle bracket close to the holder is provided with a first connecting part, the holder is provided with a second connecting part, and the first connecting part and the second connecting part cooperate to enable the handle bracket to be connected with the holder.

12. The drive mechanism as recited in claim 10, wherein the handle bracket is coupled to the cage when the ring gear is in the secured state.

13. The drive mechanism as claimed in claim 10, further comprising a connector disposed between the third bracket and the handle bracket, wherein the connector is configured to snap-fit the third bracket and the handle bracket in a direction perpendicular to the rotation direction of the sun gear; when the handle bracket slides, the third bracket can be driven to slide so as to realize the connection or separation of the third bracket and the buckling part.

14. The driving mechanism as claimed in claim 10, wherein the locking portion comprises a plurality of locking blocks arranged at intervals, and a plurality of locking grooves arranged at intervals are arranged on 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 support slides and the clamping block is separated from the clamping groove, the clamping part is separated from the third support.

15. The driving mechanism as claimed in claim 13, wherein the driving mechanism further comprises a third elastic member, a second receiving slot is formed on a side of the second bracket close to the holder, a portion of the third elastic member is disposed in the second receiving slot, and the third elastic member abuts against the third bracket and the second bracket; when the handle bracket slides towards the direction close to the retainer, the third elastic piece is in a compressed state.

16. The drive mechanism as recited in any of claims 2-15, wherein said motor is disposed on a first side of said planet wheel assembly and said carrier assembly is disposed on a second side of said planet wheel assembly, said first side being disposed adjacent said second side.

17. The drive mechanism as recited in claim 1, further comprising a universal joint rotatably connected to the other side of the cage; the cage has a first rotational direction and the gimbal has a second rotational direction, the first rotational direction intersecting the second rotational direction; and a second accommodating groove is formed in the universal joint and is used for connecting the lock cylinder.

18. The drive mechanism according to claim 17, wherein a third protrusion is protruded from the other side surface of the cage, the third protrusion encloses a first rotation space, the universal joint includes a first rotation part and a second rotation part, the first rotation part is disposed in the first rotation space, and the first rotation part is rotatably connected to the third protrusion;

19. The drive mechanism as recited in claim 1, further comprising a worm gear and a worm, wherein the worm is connected to the motor, one end of the worm gear is rotatably connected to the worm, and the other end of the worm gear is rotatably connected to the ring gear.

20. A door lock, characterized in that the door lock comprises a lock cylinder and a drive mechanism according to any one of claims 1-19, the lock cylinder being connected to the other side of the holder, the lock cylinder being moved by rotation of the holder, thereby opening and closing the door.