CN112112490A

CN112112490A - Driving mechanism for door lock and door lock

Info

Publication number: CN112112490A
Application number: CN202011073937.3A
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: 2020-09-30
Publication date: 2020-12-22
Anticipated expiration: 2040-09-30
Also published as: CN112112490B

Abstract

The application provides a actuating mechanism, lock for lock. Wherein the drive mechanism comprises a motor. The planetary gear assembly comprises a gear ring, a planetary gear and a sun gear, the motor is rotationally connected with the sun gear, the gear ring is provided with an accommodating space, the planetary gear and part of the sun gear are arranged in the accommodating space, and the planetary gear is rotationally connected between the sun gear 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 gear ring is in a fixed state, the sun gear is driven by the motor to rotate. When the sun gear is in a fixed state, the rotation can be performed by controlling the ring gear. The motor is adopted to control the sun gear to rotate or directly control the gear ring 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 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 structures, 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 structures for controlling the opening and closing of houses. 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 the driving mechanism of the motor lock breaks down, 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 sun gear, the gear ring is provided with an accommodating space, the planet gear and part of the sun gear are arranged in the accommodating space, and the planet gear is rotationally connected between the sun gear 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 gear ring is in a fixed state, the sun gear is driven by the motor to rotate so that the planet gear rotates relative to the gear ring; alternatively, when the sun gear is in a fixed state, the ring gear may be controlled to rotate so that the planetary gear rotates relative to the sun gear.

The actuating mechanism that this application first aspect provided through setting up planetary gear assembly, makes motor swivelling joint sun gear, the rotation of the steerable sun 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 sun gear mutually support and finally make the planet wheel rotate, and then drive the holder rotation, 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 that when the gear ring is in a fixed state, the sun gear can be driven by the motor to rotate so that the planet gear rotates relative to the gear ring. The door can be opened and closed through the motor. When the sun gear cannot rotate due to the fact that the motor breaks down, the sun gear is in a fixed state, the gear ring can be controlled to rotate, and therefore the planet gear rotates relative to the sun gear. Therefore, even when the motor fails, the door can be opened and closed by controlling the gear ring to rotate.

In conclusion, the driving mechanism provided by the application realizes door opening and closing by adopting the motor to control the rotation of the sun wheel or directly controlling the rotation of the gear ring, 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.

The motor is connected with the first sub sun gear in a rotating mode; the second sub-sun gear is arranged in the accommodating space and is rotationally connected with the planet gear.

The driving mechanism further comprises a gear support, the gear support is connected to one side of the gear ring in a rotating mode, and the gear support is in a fixed state or a rotating state.

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

the casing has the accommodation space in, the motor and planetary gear assembly all locates in the accommodation space, set up the intercommunication on the casing the through-hole of accommodation space, part the handle support runs through the through-hole, just the spacing groove has been seted up on at least partial lateral wall of through-hole, the spacing groove with the handle support is mutually supported in order to restrict the rotation of handle support.

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 gear support, and when the handle support moves towards the direction close to the gear support, the second elastic piece is in a compressed state.

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

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

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 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 embodiment of the application also provides a door lock, the door lock includes the lock core and reaches the actuating mechanism who provides like the above-mentioned embodiment of this application, the lock core connect in the opposite side of holder, the lock core is in the rotatory lower motion of holder to realize opening and shutting the door.

The door lock provided by the embodiment of the application can realize the door opening and closing by adopting the motor to control the rotation of the sun gear or directly controlling the gear ring to rotate in two modes through the driving mechanism provided by the embodiment of the application, 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.

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 diagram of a driving mechanism according to an embodiment of the present application.

Fig. 3 is a schematic sectional view taken along a-a direction in fig. 1.

Fig. 4 is a schematic structural diagram of a driving mechanism according to another embodiment of the present application.

Fig. 5 is a partially exploded view of a drive mechanism according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a driving mechanism according to still another embodiment of the present application.

Fig. 7 is a schematic structural diagram of a driving mechanism according to another embodiment of the present application with a housing removed.

FIG. 8 is a schematic cross-sectional view taken along A-A of a drive mechanism according to another embodiment of the present application.

Fig. 9 is a schematic view of a gear holder in a rotating state according to an embodiment of the present application.

Fig. 10 is a top view of a drive mechanism according to an embodiment of the present application.

FIG. 11 is a schematic cross-sectional view taken along A-A of a drive mechanism according to yet another 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 top view of a drive mechanism according to another embodiment of the present application.

Fig. 14 is a schematic view of the gimbal rotating in the first sub-rotation direction according to an embodiment of the present application.

Fig. 15 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 gear ring-21, an accommodating space-211, a planetary gear-22, a sun gear-23, a first sub sun gear-231, a second sub sun gear-232, a first side-24, a second side-25, a retainer-30, a transmission mechanism-40, a first gear-41, a second gear-42, a third gear-43, a protective shell-44, a gear bracket-50, a handle bracket-51, a limiting part-52, a second elastic part-53, a first accommodating groove-54, a shell-60, an accommodating space-61, a through hole-62, a limiting groove-63, a universal joint-70, a second accommodating groove-71, a convex part-72 and 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 and a protecting part-79.

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 door to open and close a room, space, etc. 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 technology and the changing of user's demand, electronic locks are now in the field of vision of people and are well noticed by 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 fig. 3, fig. 1 is a schematic structural diagram of a driving mechanism according to an embodiment of the present application. Fig. 2 is a schematic diagram of a driving mechanism according to an embodiment of the present application. Fig. 3 is a schematic sectional view taken along a-a direction in fig. 1. The present embodiment provides a drive mechanism 1 for a door lock, the drive mechanism 1 including a motor 10. The planetary gear assembly 20, the planetary gear assembly 20 includes ring gear 21, planet wheel 22, and sun gear 23, the motor 10 swivelling joint the sun gear 23, ring gear 21 has accommodating space 211, planet wheel 22 all locates with part the sun gear 23 in accommodating space 211, and planet wheel 22 swivelling joint in sun gear 23 with between the ring gear 21. A holder 30, wherein the holder 30 is provided on one side of the planetary gear assembly 20, the ring gear 21 and the sun gear 23 both abut against the holder 30, and the planet gear 22 is connected to the holder 30; when the ring gear 21 is in a fixed state, the sun gear 23 is driven by the motor 10 to rotate, so that the planet gears 22 rotate relative to the ring gear 21; alternatively, when the sun gear 23 is in a fixed state, the ring gear 21 may be controlled to rotate so that the planetary gears 22 rotate relative to the sun gear 23.

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 comprise a non-rechargeable battery or a rechargeable battery.

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. In addition, the planet wheel 22 and the sun wheel 23 both have one circle of external teeth, and the planet wheel 22 and the partial sun wheel 23 are both arranged in the accommodating space 211. It is also understood that a portion of the sun gear 23 is disposed in the receiving space 211, and the remaining sun gear 23 is disposed outside the receiving space 211. As for the motor 10, the sun gear 23 is rotatably connected. It can be understood that the motor 10 is rotatably connected to the sun gear 23 outside the accommodating space 211 and drives the sun gear 23 inside the accommodating space 211 to rotate. Secondly, the motor 10 is rotatably connected with the sun gear 23, and the motor 10 is directly connected with the sun gear 23. Or, another transmission mechanism 40 is further disposed between the motor 10 and the sun gear 23, 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 sun gear 23. The motor 10 rotates to drive the transmission mechanism 40 to rotate, and the transmission mechanism 40 rotates to drive the sun gear 23 to rotate. It can now be seen that the motor 10 is indirectly rotationally coupled to the sun gear 23. As for the specific structure of the transmission mechanism 40, the present application will be described later.

Next, the planetary gear 22 is 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. Rotation of the cage 30 further moves the lock cylinder.

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, so that the retainer 30 is driven to rotate, and finally the lock cylinder connected with the retainer 30 is driven to move, thereby opening and closing the door. The specific matching method of the ring gear 21, the planet gears 22 and the sun gear 23 can be understood as that one of the ring gear 21 or the sun gear 23 is structurally fixed, and the other of the ring gear 21 or the sun gear 23 and the planet gears 22 rotate, so that the planet gears 22 can revolve around the sun gear 23 to drive the retainer 30 to rotate. For example, when the ring gear 21 is in a fixed state, the sun gear 23 is driven by the motor 10 to rotate, so that the planet gears 22 rotate relative to the ring gear 21, and further the retainer 30 rotates, and the opening and closing of the door can be realized by the motor 10. When the motor 10 fails and cannot normally operate, the sun gear 23 cannot rotate, and at this time, the sun gear 23 is in a fixed state, so that the ring gear 21 can be directly controlled to rotate, so that the planet gears 22 rotate relative to the sun gear 23, 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 ring gear 21 to rotate. Alternatively, the structure and method of fixing and rotating the ring gear 21 will be described in detail later in this application.

In summary, the driving mechanism 1 provided by the present application realizes opening and closing of the door by adopting the two ways of controlling the rotation of the sun gear 23 by the motor 10 or directly controlling the rotation of the gear ring 21, thereby increasing a method for controlling the door lock, avoiding the problem that the door cannot be opened or closed due to the damage of the motor 10 in the single motor 10 lock, and reducing the difficulty and risk of opening the door.

Optionally, referring to fig. 1 again, the transmission mechanism 40 includes a first gear 41, a second gear 42, and a third gear 43, the first gear 41 is rotatably connected to the motor 10, the second gear 42 is rotatably connected to the first gear 41, and the third gear 43 is rotatably connected to the second gear 42. The rotation of the motor 10 can be transmitted to the sun gear 23 through a plurality of gears.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a driving mechanism according to another embodiment of the present application. In this embodiment, the driving mechanism 1 further includes a protective casing 44, the protective casing 44 covers the gear assembly, and the transmission mechanism 40 can be better protected by the protective casing 44 in this embodiment.

Referring to fig. 3 and 5 again, fig. 5 is a partially exploded schematic view of a driving mechanism according to an embodiment of the present disclosure. In the present embodiment, the sun gear 23 includes a first sub sun gear 231 and a second sub sun gear 232 which are coaxially disposed, and the motor 10 is rotatably connected to the first sub sun gear 231; the second sub-sun gear 232 is disposed in the accommodating space 211, and the second sub-sun gear 232 is rotatably connected to the planet gear 22.

The above description describes that part of the sun gear 23 is disposed in the accommodating space 211, and specifically, in the present embodiment, the sun gear 23 may include a first sub-sun gear 231 and a second sub-sun gear 232 which are coaxially disposed. The first sub-sun gear 231 is disposed outside the accommodating space 211 and is rotatably connected to the electrode. The second sub-sun gear 232 is disposed in the accommodating space 211, and the second sub-sun gear 232 is rotatably connected to the planet gear 22. In this way, the sun gear 23 is rotatably connected to the motor 10 outside the housing space 211 and to the planetary gears 22 in the housing space 211.

Referring to fig. 6, fig. 6 is a schematic structural diagram of a driving mechanism according to another embodiment of the present application. In the present embodiment, the driving mechanism 1 further includes a gear holder 50, the gear holder 50 is rotatably connected to one side of the ring gear 21, and the gear holder 50 has a fixed state or a rotating state.

The above description describes the ring gear 21 having a fixed state and a rotating state, and the present embodiment will describe how to fix and rotate the sun gear 23. Specifically, in the present embodiment, the gear holder 50 may be linked with the ring gear 21 by adding the gear holder 50 and rotatably connecting the gear holder 50 to one side of the ring gear 21. In addition, the gear holder 50 has a fixed state or a rotating state. Therefore, the present embodiment can control the movement of the ring gear 21 by the gear bracket 50. When the gear holder 50 is in a fixed state, the ring gear 21 is also in a fixed state. When the gear holder 50 is in a rotating state, the ring gear 21 is also in a rotating state.

Referring to fig. 7 to 10 together, fig. 7 is a schematic structural diagram of a driving mechanism according to another embodiment of the present application with a housing removed. FIG. 8 is a schematic cross-sectional view taken along A-A of a drive mechanism according to another embodiment of the present application. Fig. 9 is a schematic view of a gear holder in a rotating state according to an embodiment of the present application. Fig. 10 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 holder 51 and a housing 60, the handle holder 51 is slidably connected to the gear holder 50, and a sliding direction of the handle holder 51 is perpendicular to a rotating direction of the ring gear 21. Have accommodation space 61 in the casing 60, motor 10 and planetary gear assembly 20 all locates in the accommodation space 61, seted up the intercommunication on the casing 60 the through-hole 62 of accommodation space 61, part handle support 51 runs through-hole 62, just spacing groove 63 has been seted up on at least partial lateral wall of through-hole 62, spacing groove 63 with handle support 51 mutually supports in order to restrict handle support 51's rotation.

This embodiment will describe in detail how the gear holder 50 has a fixed state or a rotating state. Specifically, a handle holder 51 and a housing 60 may be added, and the handle holder 51 may be slidably connected to the gear holder 50, and a sliding direction of the handle holder 51 (a direction shown as D1 in fig. 7) may be perpendicular to a rotating direction of the ring gear 21 (a direction shown as D2 in fig. 7). It is also understood that the handle holder 51 is not only connected to the gear holder 50 but also slidable with respect to the gear holder 50.

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 51 penetrates through the through hole 62, the rest of the handle support 51 is arranged outside the accommodating space 61 of the casing 60, and the handle support 51 arranged outside the accommodating space 61 is used for installing other structural members or directly providing operation for a user. In this embodiment, a limiting groove 63 may be formed in at least a portion of a sidewall of the through hole 62, and the limiting groove 63 and the handle bracket 51 cooperate with each other to limit the rotation of the handle bracket 51.

As shown in fig. 8 and 10, the handle holder 51 is provided with a protruding limiting portion 52, and when the handle holder 51 is located in the limiting groove 63, the limiting groove 63 can limit the rotation of the limiting portion 52, that is, the limiting groove 63 on the housing 60 limits the rotation of the handle holder 51, that is, the housing 60 limits the rotation of the handle holder 51, so that the gear holder 50 has a fixed state. As shown in fig. 9, in the process that the handle bracket 51 moves toward the gear bracket 50, when the limiting portion 52 is separated from the limiting groove 63 or the limiting portion 52 is separated from the side wall range of the through hole 62, the limiting groove 63 cannot limit the limiting portion 52 of the handle bracket 51 any more, so that the handle bracket 51 can rotate to drive the gear bracket 50 to rotate, and the gear bracket 50 has a rotating state.

Alternatively, when the ring gear 21 is to be fixed again, the handle holder 51 may be moved again in a direction away from the gear holder 50, and the stopper portion 52 may be reset in the stopper groove 63, thereby restricting rotation of the handle holder 51, and in turn, the gear holder 50 and the ring gear 21.

Referring to fig. 11, fig. 11 is a schematic sectional view of a driving mechanism along a direction a-a according to another embodiment of the present application. In this embodiment, the driving mechanism 1 further includes a second elastic member 53, one end of the second elastic member 53 abuts against the handle holder 51, the other end of the second elastic member 53 abuts against the gear holder 50, and when the handle holder 51 moves in a direction approaching the gear holder 50, the second elastic member 53 is in a compressed state.

In the present embodiment, a second elastic member 53 may be additionally provided, and the handle holder 51 and the gear holder 50 may be connected by the second elastic member 53. When the handle holder 51 is moved toward the direction of approaching the gear holder 50, the second elastic member 53 is in a compressed state. At this time, the second elastic member 53 has a resilient force therein, and when the external force on the handle holder 51 is removed, the handle holder 51 can automatically move in a direction away from the gear holder 50 under the resilient force of the elastic member, and the position-limiting portion 52 is re-located in the position-limiting groove 63, so as to limit the rotation of the handle holder 51, and thus, the rotation of the gear holder 50 and the gear ring 21 in turn.

Optionally, a first receiving groove 54 is formed on one side of the handle bracket 51 close to the gear bracket 50, and a portion of the second elastic member 53 is disposed in the first receiving groove 54. In this embodiment, a first receiving groove 54 may be formed on the handle holder 51 on a side close to the gear holder 50, and a portion of the second elastic member 53 may be disposed in the first receiving groove 54, so that the position-limiting capability of the second elastic member 53 may be improved, the size of the driving mechanism 1 may be reduced, and the mechanism may be simplified.

Referring to fig. 7 again, in the present embodiment, the motor 10 is disposed on a first side 24 of the planetary wheel 22 assembly, the gear bracket 50 is disposed on a second side 25 of the planetary wheel 22 assembly, and the first side 24 is disposed opposite to the second side 25.

As can be seen from the above, the driving mechanism 1 provided in the present embodiment may include the motor 10, the planetary gear 22 assembly, and the bracket assembly. 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 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 opposite to each other. It will also be appreciated that the motor 10 and carrier assembly are provided on opposite sides of the assembly of planet wheels 22, which increases the length of the drive mechanism 1 and decreases the thickness thereof, thereby allowing the drive mechanism 1 to approximate a long, narrow shape.

Referring to fig. 12-13 together, fig. 12 is a schematic sectional view of a driving mechanism along a direction a-a according to another embodiment of the present application. FIG. 13 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. 13) and the gimbal 70 has a second rotational direction (as indicated by the direction D4 in FIG. 12) 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 receiving groove 71, the angle of deflection between the lock cylinder and the retainer 30 can be offset by 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. 14-15 together, fig. 14 is a schematic view illustrating the rotation of the gimbal along the first sub-rotation direction according to an embodiment of the present application. Fig. 15 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 protrusion 72 is protruded from the other surface of the retainer 30, the protrusion 72 surrounds the first rotation space 73, the universal joint 70 includes a first rotation part 74 and a second rotation part 75, the first rotation part 74 is disposed in the first rotation space 73, and the first rotation part 74 is rotatably connected to the 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 holder 30 may be provided with the protrusion 72 in a protruding manner, and 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 protrusion 72, and the first rotation portion 74 may be rotatably coupled to the protrusion 72, and the first rotation portion 74 and the 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-rotational direction (as shown by direction D5 in fig. 14). 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 rotating portion 75 thus has a second sub-rotation direction (as shown in the direction D6 in fig. 15). 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. 13 again, in this embodiment, the protrusion portion 72 is provided with a through hole 77, 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 protrusion portion 72 to make the rotating shaft 78 abut against the protection portion 79

The first rotating portion 74 is rotatably connected to the protruding portion 72, at this time, a through hole 77 is formed on the 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 protruding portion 72. In this embodiment, a protection portion 79 may be provided outside the projection 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 projection 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;

2. The drive mechanism as recited in claim 1, wherein the sun gear comprises a first sub-sun gear and a second sub-sun gear coaxially disposed, the motor being rotationally coupled to the first sub-sun gear; the second sub-sun gear is arranged in the accommodating space and is rotationally connected with the planet gear.

3. The drive mechanism as recited in claim 1, further comprising a gear carrier rotatably coupled to one side of the ring gear, the gear carrier having a fixed state or a rotating state.

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 gear bracket, and the sliding direction of the handle bracket is perpendicular to the rotation direction of the ring 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 gear bracket, said second resilient member being in compression when said handle bracket is moved toward said gear bracket.

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

7. The drive mechanism as recited in any of claims 3-6, wherein said motor is disposed on a first side of said planetary wheel assembly and said gear carrier is disposed on a second side of said planetary wheel assembly, said first side being disposed opposite said second side.

8. 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.

9. The drive mechanism according to claim 8, wherein a protrusion is protruded from the other side surface of the cage, the protrusion surrounds 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 protrusion;

10. A door lock, characterized in that the door lock comprises a lock cylinder and a drive mechanism according to any one of claims 1-9, the lock cylinder is connected to the other side of the holder, and the lock cylinder moves under the rotation of the holder, thereby realizing the opening and closing of the door.