CN206128861U

CN206128861U - Lock drive arrangement and electrically controlled door lock who uses it

Info

Publication number: CN206128861U
Application number: CN201620833167.0U
Authority: CN
Inventors: 邓佳骏; 周勇; 朱卫东
Original assignee: Jiangsu Leili Motor Co Ltd
Current assignee: Jiangsu Leili Motor Co Ltd
Priority date: 2016-08-02
Filing date: 2016-08-02
Publication date: 2017-04-26
Anticipated expiration: 2026-08-02

Abstract

The utility model relates to a lock drive arrangement and electrically controlled door lock who uses it, more especially, a separation and reunion unit (400) that be used for lock actuating mechanism (1) is related to, wherein, when the lock operation is unblanked / closed in operate door lock actuating mechanism (1) handle (200) with the realization, separation and reunion unit (400) are with drive line (360) separation of dabber (101) with gear box (300) of lock actuating mechanism (1) of lock actuating mechanism (1), the moment of torsion that operating handle thereby (200) produced can not transmit drive line (360).

Description

Door lock driving device and electric control door lock applying same

Technical Field

The utility model relates to a lock drive arrangement and use its automatically controlled locks. The door lock device can be used in a home security door lock, and also can be used in office places or any occasions needing door locks.

Background

Electronic locks, especially electronic door locks, usually control the operation of a circuit or a chip through password input, so as to control the mechanical unlocking and locking tasks. The password input operation can be performed by a conventional mechanical input method such as a key type or a dial type, or by an advanced electronic key (which transmits an electronic signal to a control circuit located inside an electronic door lock in the form of sound, light, electromagnetic waves, etc.) or a biometric method (which inputs a human biometric characteristic such as sound, iris, fingerprint, etc. through a specific input device).

There are already a large number of electronic door lock devices on the market for enabling opening or closing of the door lock in response to receiving a correct unlocking signal. Existing electronic door lock devices are deficient.

Most of the existing electronic door locks have very limited mechanical actions. In these electronic door locks, the electronic components only include a signal reading function, and the motor for performing the mechanical action therein is only used as a clutch, i.e., for controlling whether the door lock is in an openable state, and the actual door opening action still needs to be performed by manual operation.

The universality of the existing electronic door lock is insufficient, the existing electronic door lock cannot adapt to door plates with various thicknesses on the market, and the installation process is difficult and complicated. In addition, the rotation angle of the lock cylinder in some electronic door locks is limited, only one-level simple door lock can be opened and closed, the electronic door locks are easy to crack, and the safety is insufficient.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a clutch unit for a door lock driving mechanism, wherein,

when the handle of the door lock driving mechanism is operated to realize the unlocking/locking operation, the clutch unit separates the spindle of the door lock driving mechanism from the transmission system of the gear box of the door lock driving mechanism, so that the torque generated by operating the handle is not transmitted to the transmission system.

In one embodiment, the clutch unit includes a stationary clutch plate engaged with the handle and rotated with rotation of the handle, and a movable clutch plate engaged with the spindle, the movable clutch plate moving the spindle in an axial direction of the door lock driving mechanism when the stationary clutch plate is rotated with rotation of the handle so that the spindle is separated from the power train.

In one embodiment, the fixed clutch disc comprises a left-handed spiral surface and a right-handed spiral surface, the movable clutch disc comprises spiral surfaces which are respectively matched with the left-handed spiral surface and the right-handed spiral surface of the fixed clutch disc,

when the handle is rotated clockwise, the left-handed helical surface of the stationary clutch plate engages and slides along the corresponding helical surface of the movable clutch plate, causing the movable clutch plate to push the spindle in a direction away from the stationary clutch plate, whereby the spindle is disengaged from the drive train, and/or,

when the handle is rotated counterclockwise, the right-hand helical surface of the stationary clutch plate engages and slides along the corresponding helical surface of the movable clutch plate, causing the movable clutch plate to push the spindle in a direction away from the stationary clutch plate, thereby disengaging the spindle from the drive train.

In one embodiment, the left-hand and right-hand helical surfaces of the stationary clutch plate are arranged at circumferential locations of different radial lengths from the axis of the clutch unit.

In one embodiment, the left-hand and right-hand helical surfaces of the stationary clutch plate are arranged at circumferential locations of the same radial length from the axis of the clutch unit.

In one embodiment, the stationary clutch plate includes two left-hand helical surfaces and two right-hand helical surfaces.

In one embodiment, the stationary clutch plate has first and second stop surfaces at the ends of its left and right helical surfaces, respectively, and the movable clutch plate also has corresponding first and second mating stop surfaces at the ends of its corresponding two helical surfaces,

when the handle and the stationary clutch plate are rotated clockwise such that the first stop surface of the stationary clutch plate engages the first mating stop surface of the movable clutch plate, rotation of the handle drives the movable clutch plate and the spindle to rotate clockwise,

when the handle and the stationary clutch plate are rotated counterclockwise such that the second stop surface of the stationary clutch plate engages the second mating stop surface of the movable clutch plate, rotation of the handle drives the movable clutch plate and the spindle to rotate counterclockwise.

The utility model discloses still relate to a lock actuating mechanism, wherein lock actuating mechanism includes: a base, a handle, a gear box, a clutch unit according to any of the previous embodiments,

the base includes: a front end wall, a circumferential outer wall and an open rear end, at least one main circuit board and a motor being accommodated in a space formed by the front end wall and the circumferential outer wall; the gear box can transmit the torque generated by the motor to the mandrel; the handle can enclose the gearbox and the clutch unit therein.

In one embodiment, the gear box is arranged at the rear side of the base and is connected with the base through a fastening device, and the clutch unit is arranged at the rear side of the gear box and is connected with the mandrel and the handle.

In one embodiment, the spindle extends through the base and the gear box and extends forward from the front end of the base to a safety lock provided at a door panel of the door, such that torque generated by the motor is transferred to the safety lock to effect opening and closing of the door lock.

The utility model discloses still relate to a lock, this lock includes as aforesaid any one embodiment's lock actuating mechanism to including the signal identification unit that is used for receiving lock actuating signal.

In one embodiment, the door lock further comprises a key hole for inserting a key.

Drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.

Fig. 1 shows a partially exploded rear perspective view of a door lock drive mechanism 1 according to an embodiment of the present invention.

Fig. 2 shows a side view of the door lock drive mechanism 1 according to an embodiment of the present invention.

Fig. 3 is a rear perspective view of the door-lock drive mechanism 1 shown in fig. 2.

Fig. 4 shows a separated perspective view of the door lock drive mechanism 1 and the mounting plate 5 before fitting together.

Fig. 5 shows a front view of the door lock drive mechanism 1.

Fig. 6 shows a side view of the door lock drive mechanism 1, and shows a side view of the pin 520 for mounting.

Fig. 7 is an exploded perspective view of the door lock drive mechanism 1.

Fig. 8 shows a partial cross-sectional view of another embodiment of a door lock drive mechanism 1000 according to the present invention, wherein a handle 1200 comprises a front handle 1210 and a rear handle 1220.

Fig. 9 shows a sectional view of a state before the front handle 1210 and the rear handle 1220 are mounted to the base 1100.

Fig. 10 shows a cross-sectional view of the base 100 showing the relative positions of the motor 130, the spindle 101, the main control circuit board 120, and the charging circuit board 140.

Fig. 11 shows an exploded perspective view of a state where the charging wiring board 140 and the fixing tabs 141 are not mounted in the cradle 100.

Fig. 12 shows a rear view of the chassis 100.

Fig. 13 shows a side sectional view of the chassis 100, in which the charging wiring board 140 and the fixing tabs 141 have been mounted in the chassis 100.

Fig. 14 shows a perspective view of the chassis 100 seen from the rear, which shows the arrangement of the inner space of the chassis 100.

Fig. 15 shows a front perspective view of the base plate 100, wherein the battery cover 170 has been removed from the base plate 100.

Fig. 16 shows a perspective view in which the battery cover 170 is separated from the base 100.

FIG. 17 shows an exploded perspective view of the gearbox 300 and the bedplate 100 between unassembled together.

Fig. 18 shows a rear perspective view of the gearbox 300 with the expansion board 311, 312 not installed in the gearbox 300.

FIG. 19 shows a side view of the base 100, gearbox 300, and handle 200, where the handle 200 has not yet been assembled to the base 100 and gearbox 300.

Fig. 20 shows a sectional view in a state where the expansion wiring boards 311, 312 are not mounted in the inner space 343 formed by the cylindrical outer wall 310 at the rear of the gear case cover 340.

Fig. 21 shows a sectional view in a state where the expansion wiring board has been mounted in the internal space 343.

Fig. 22 shows a rear view of the gear housing 300 in a state where the expansion wiring board 311 is mounted to the internal space 343 and the expansion wiring board 312 is not mounted to the internal space 343.

Fig. 23 and 24 show a rear view and a rear perspective view of the gear housing 300 in a state where the expansion wiring boards 311, 312 are both mounted to the internal space 343, respectively.

Fig. 25 shows a schematic perspective view of the drive train 360 of the gearbox 300.

Fig. 26 shows a perspective view of the final gear 361 and the drive wheel 362.

Fig. 27 shows an end view of the final gear 361 and the drive wheel 362.

Fig. 28 shows a perspective view of the door-lock drive mechanism 1 in which the handle 200 is not mounted to the base 100.

FIG. 29 shows a cross-sectional view of the handle 200 and base 100 mated together.

Fig. 30 shows an exploded perspective view of the anti-slip ring 210 and the handle sleeve 220.

Fig. 31 shows the internal structure of the handle sleeve 220.

Fig. 32 shows a perspective view of a clutch unit 400 according to an embodiment of the invention.

Fig. 33 shows a perspective view of the clutch unit 400 of fig. 32 from another angle.

Fig. 34 shows a cross-sectional view of the clutch unit 400 and the spindle 101 in a mated state.

Fig. 35 shows a perspective view of the clutch unit 400 and the spindle 101 in a mated state, in which the helical stroke of the clutch unit 400 reaches a limit.

Fig. 36 shows an exploded perspective view of another type of clutch unit.

Detailed Description

In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In particular, the front-to-back direction described in the present invention is with respect to the position of the door. Specifically, the portion of the door lock drive mechanism near the door is referred to as "front", and the portion of the door lock drive mechanism far from the door is referred to as "rear". This description is merely for convenience in describing the components in the specification and is not meant to be limiting of the invention.

In an inventive solution according to the invention, the gearbox part and the base part are mutually independent parts in the longitudinal direction of the door lock drive and are spaced apart from each other. In particular, the relatively bulky components of the motor, the battery, etc. are completely housed in the base, so as to be completely isolated from the gearbox portion in the longitudinal direction; the circuit board for control and/or power supply is also mostly or completely accommodated in the base, or its part extending into the longitudinal part of the gearbox part only occupies a small part of the gearbox. Therefore, under the limitation of compact radial dimension of the door lock driving mechanism, as much space as possible in the gear box part can be realized, a gear train for transmitting torque does not need to occupy limited radial dimension with larger-volume components such as a battery and a motor, so that a transmission system can be designed to rotate at a full angle, and/or the transmission system can be designed to be in multi-stage speed reduction transmission, so that larger speed reduction ratio and higher rated torque of the motor can be realized, the working torque of various door lock cylinders on the market can be met, and the adaptability and the compatibility of the door lock driving mechanism can be further improved.

[ mounting means for door locks ]

Referring to fig. 1, most of the door lock driving mechanism 1 is located inside a door 2 (shown as the right side of the door in fig. 1), and is installed and fixed to the door 2 through an installation hole 3 penetrating a door panel of the door 2. In the embodiment shown according to fig. 1, the mounting hole 3 is circular. Alternatively, the shape of the mounting hole 3 may be set accordingly according to the specific shape and/or structure of the door-lock driving mechanism 1, for example, the mounting hole 3 may be set to be square, rectangular, oval, or the like.

Outside, i.e. the outer part of the door 2 (not shown in fig. 1), a signal recognition unit is installed. Alternatively, the signal identification unit may be a mechanical or electronic input unit (e.g. a key-press or touch electronic input device) for receiving user input, may be a signal receiving device for receiving light, sound, electricity and other types of signals, and may also be a human body biometric feature (fingerprint, iris) identification device; the signal identification unit can also be combined with technologies such as the internet of things and/or the internet and the like and is used for receiving an unlocking signal sent by a remote device (such as a computer or a mobile phone).

Optionally, the door lock is optionally provided with a key hole (not shown) at an outer side portion of the door 2 for manually opening the door lock using a key when an electronic control circuit of the door lock driving mechanism 1 malfunctions. The provision of a key hole for manually opening the door lock by a key provides redundancy to the electronic door lock, thereby preventing a user from being rejected when an electronic circuit of the door lock driving mechanism 1 malfunctions (e.g., power failure, or circuit damage). Alternatively, the device for opening the door lock by manual means using a key can be combined with an electronic identification unit of the signal of the door lock drive 1, i.e. the user needs to match the electronic signal and use the correct key to open the door lock at the same time to achieve the unlocking process. The mode of combining the electronic identification and the mechanical key matching can further improve the safety performance of the door lock, and can effectively avoid potential safety hazards caused by imitation of the key or cracking of the signal identification module.

A door lock cylinder (not shown) is installed in the mounting hole 3 for being driven by the door lock driving mechanism 1 to open the door lock. In the event of a failure of the electronic circuit of the door lock drive mechanism 1, the door lock can be opened manually by a key inserted into the keyhole or manually by rotating the mechanical handle of the door lock drive mechanism. The door lock cylinder can be fully embedded in the door 2, i.e. not extending beyond or flush with the front and rear panels of the door 2, thereby facilitating the aesthetic appearance of the door lock mechanism and facilitating the installation of the door lock drive mechanism 1.

The signal recognition unit is disposed on the outside of the door 2, and most of the door-lock driving mechanism 1 is mounted on the inside of the door 2, and the signal recognition unit is connected to a control circuit (e.g., a printed circuit board) disposed in the door-lock driving mechanism 1 through a signal line 4.

The indoor mounting portion of the door lock drive mechanism 1 is mounted to the door 2 via a mounting plate 5. Alternatively, the door lock actuator 1 can be mounted to the door 2 by some conventional mounting, fixing means in the art, such as by adhesive, screwing, welding, to the door 2.

The embodiment of the utility model provides an in, the indoor installation part of lock actuating mechanism via mounting panel 5, through the cooperation mode of pin and buckle, can install lock actuating mechanism 1 to door 2 and/or dismantle from door 2 fast and conveniently.

Fig. 2 shows a side view of the door lock drive mechanism 1 according to an embodiment of the present invention, and fig. 3 is a rear perspective view of the door lock drive mechanism 1.

The side view of the door lock drive mechanism 1 in fig. 2 shows the appearance of the door lock mechanism 1 according to an embodiment of the present invention. The door lock driving mechanism 1 has a two-stage structure, and includes a base 100 and a handle 200. The spindle 101 projects axially outward from the base 100 and is inserted into the door lock cylinder during the installation process of the door lock drive mechanism 1. When the motor 130 (see fig. 6) in the door lock driving mechanism 1 is driven to rotate the spindle 101, the spindle 101 can drive the internal mechanism of the door lock to open and close the bolt and the safety lock.

In one embodiment, the base 100 and handle 200 are generally cylindrical in shape. Alternatively, the base 100 and handle 200 may be other cylindrical shapes, such as, but not limited to, square, rectangular, oval, triangular, etc., in cross-section, and may be designed to be non-cylindrical in shape. In particular, the handle 200 may be designed in other shapes to facilitate gripping by a human hand. In addition, the outer surface of the handle 200 may be provided with a groove or a protrusion for facilitating gripping by a human hand or increasing friction force, so as to facilitate the user's operation of the handle.

In the embodiment shown in fig. 2 and 3, the outer diameter of the base 100 is smaller than the outer diameter of the handle 200. This can facilitate the grip of the handle portion while ensuring a small-sized structure of the door-lock driving mechanism 1. Alternatively, the outer diameter of the base 100 may be equal to or greater than the outer diameter of the handle 200. In one embodiment, when the electric driving part in the product can not work normally, the user can rotate the handle to complete the door opening action, so as to supplement the electric driving part.

A rear cover 201 is located at the rear end of the handle 200, and is capable of covering and protecting the internal components from external dust, moisture or other impurities. The back cover 201 is preferably made of a dielectric material (e.g., a plastic material). The dielectric material used to make the back cover 201 is capable of passing electromagnetic signals and maintaining its integrity without attenuating them, so that when a user intends to open the door lock indoors using remote control (electronic door card, cell phone) means, the back cover does not affect the reception of the control signals, and the control elements inside the product are able to accurately receive the signals of unlocking.

Referring back to fig. 1, the door lock drive mechanism 1 is mounted to the door 2 by a mounting plate 5. In particular, the door lock drive mechanism 1 can be quickly and easily mounted to and/or dismounted from the door 2 by means of pins and catches.

Fig. 4 shows a separated perspective view of the door lock drive mechanism 1 and the mounting plate 5 before fitting together. Fig. 5 shows a front view of the door lock drive mechanism 1. Fig. 6 shows a side view of the door lock drive mechanism 1, and shows a side view of the pin 520 for mounting.

The mounting plate 5 is shaped to generally conform to the cross-section of the base 100, and is generally circular in the configuration shown in fig. 4. A plurality of openings are provided in the mounting plate 5, including an opening 520 for the spindle 101 to extend therethrough, and an opening 530 for the signal wire 4 to extend therethrough. Pins 510 pass through corresponding apertures in the mounting plate 5 to mount the mounting plate to the panel of the door 2. In the illustrated embodiment, three pins 510 are used to secure the mounting plate. The use of 3 pins 510 enables a more stable fastening effect to be achieved while at the same time occupying as little space as possible in the door lock drive 1, in particular in the base 100. Alternatively, more or fewer pins 510 may be used to secure the mounting plate. The base chassis 100 is provided at the front thereof with a battery cover 170 (see fig. 16) for covering the battery disposed in the base chassis 100. The positions of the respective holes of the battery cover 170 correspond to those of the front end wall 110 of the base 100, so that it does not obstruct the arrangement of the respective components (including the core shaft 101, the signal wire 4, the buckle 113, the fastening means such as a screw, etc.) through the front end wall 110. For convenience of description, only the corresponding positions and functions of the holes penetrating through the front end wall 110 of the base 100 are described below, and optionally, the battery cover 170 also has corresponding holes at the corresponding positions, which are not described in detail in the specification.

The base 100 is provided at a front end wall 110 thereof with a pin hanging hole 111 corresponding to the pin 510. The number of the pin hanging holes 111 is the same as the number of the pins 510. The specific structure of the pin 510 is shown in fig. 6. The pin 510 includes a pin tail 511, a pin stem 513, and a flange 512. The flange protrudes outward in the radial direction of the pin 510 from a portion of the pin stem 513 near the pin tail 511. The shape of the pin attaching hole 111 is designed such that the pin tail 511 can be easily fitted into the pin attaching hole 111, and it is designed in the embodiment shown in fig. 4 to 5 as a rounded rectangle having a width equal to or slightly larger than the diameter of the pin tail 511 and a length larger than the diameter of the pin tail 511.

During installation, the mounting plate 5 is first secured to the door 2 by pins 510. The pin 510 is optionally threaded so that it can be firmly and relatively easily embedded into the door panel. The flange 512 of the pin 510 presses the front surface of the mounting plate 5 against the interior surface of the door 2. Subsequently, the door-lock driving mechanism 1 is hung to the corresponding pin 510 by the cooperation of the pin hanging hole 111 and the pin 510. In particular, a front plate near the pin attaching hole 111 of the base 100 is fitted (optionally, interference fitted) between the pin tail 511 and the flange 512, so that the door-lock driving mechanism 1 is relatively stably provisionally fixed to the door 2 by the pin 510.

The mounting plate 5 is also provided with a recess 540 recessed rearward from the mounting plate 5. In the illustrated embodiment, the mounting plate 5 includes two recesses 540, but the number of recesses 540 may be greater or fewer in alternative embodiments. The base 100 also includes a recess 112 recessed rearwardly from the front surface of its front end wall 110. In the illustrated embodiment, the number of recesses 112 is two, corresponding to the number of recesses of the mounting plate 540; however, in alternative embodiments, the number of recesses 112 may be adjusted accordingly based on the number of recesses 540. After the door lock driving mechanism 1 is hung to the corresponding pin 510 by the engagement of the pin hanging hole 111 and the pin 510, the recess 540 of the mounting plate 5 is correspondingly engaged into the recess 112 of the base 100. Subsequently, the buckle 113 pivotably provided in the recess 112 is rotated in the direction of arrows a1, a2 in fig. 4, so that the back surface 114 of the buckle 113 snaps onto the surface 541 of the recess 540, thereby fixing the door-lock driving mechanism 1 to the mounting plate 5, and thus to the door 2.

[ INTEGRAL ARRANGEMENT ]

Fig. 7 is an exploded perspective view of the door lock drive mechanism 1. The door lock driving mechanism 1 includes a base 100, a handle 200, a gear case 300, and a clutch unit 400. Wherein the base 100 is generally in the shape of a hollow cylinder closed at one end, having a substantially closed front end wall 110 and an open rear end. The main control circuit board 120, the motor 130, the charging circuit board 140, and the battery (not shown) are placed into the cradle 100 through the opened rear end. The gear housing 300 is integrally connected to the base 100 in a radial direction by fastening means such as screws. The extension circuit boards 311, 312 are mounted at the rear end of the gear case. The clutch unit 400 is disposed at the rear end of the gear case 300 and is connected to the spindle 101. Then, the handle 200 is nested from the rear of the clutch unit 400, surrounding and enclosing the gear case 300 and the clutch unit 400 therein. In the illustrated embodiment, the handle 200 also has a generally hollow cylindrical shape closed at one end, and closed at its rear end by a rear cover 201. The handle 200 and the clutch unit 400 are mechanically connected by a cross spline for transmitting torque. The electronic control components and the signal transceiver module are integrated in the circuit boards 120 and 140. Alternatively, the control module is mainly integrated in the main control circuit board 120, the charging module is mainly integrated in the charging circuit board 140, and the main control circuit board 120 and the charging circuit board 140 are separated by a distance.

In the working process of the door lock driving mechanism 1, after the signal receiving part receives a user instruction (human biological characteristics (fingerprints, voice, iris, etc.), and a remote control signal (a mobile phone signal, an electronic door card, etc.)), a logic element in a control module arranged in the main control circuit board 120 controls the motor 130 to start, and transmits torque through the gear box 300 to drive the spindle 101 to rotate, thereby completing the door opening action. Preferably, a position sensing element (e.g., a hall sensor) may be provided at the extension circuit boards 311, 312 for sensing the rotation angle of the spindle, and combined with another position sensing element provided at the door 2 for determining the opening and closing state of the door 2.

When the door lock driving mechanism 1 is low in power, for example, the battery is dead, or in the case of a failure of the electric part, the user can manually perform the door opening operation by using the handle 200. The user can manually rotate the handle 200 to drive the spindle to rotate, thereby opening the door. Preferably, in an embodiment according to the present invention, the clutch unit 400 may enable disengagement of the spindle and the gearbox during rotation of the handle 200 by the user, thereby avoiding external mechanical actions to transfer torque to components inside the gearbox 300, damaging the components inside the gearbox or damaging other circuit elements.

Fig. 8 shows a partial cross-sectional view of another embodiment of a door lock drive mechanism 1000 according to the present invention, wherein a handle 1200 comprises a front handle 1210 and a rear handle 1220. Fig. 9 shows a sectional view of a state before the front handle 1210 and the rear handle 1220 are mounted to the base 1100. During installation, after the main control circuit board, the charging circuit board, the motor 1130, and the battery are placed in the base 1100, the gear case 1300 is integrally connected to the base 1100 in a radial direction by fastening means (e.g., screws 1301). Subsequently, an optional extension circuit board (not shown) is mounted at the rear end of the gear case, and a clutch unit (not shown) is disposed at the rear end of the gear case 1300 and connected to the spindle 1101.

Subsequently, the front end handle 1210 is nested from the front of the base 1100, and the rear end handle 1220 is nested from the rear of the gear case 1300, so that the front end handle 1210 and the rear end handle 1220 are connected to each other, and surround and enclose the gear case 1300 and the clutch unit 1400 therein. In the illustrated embodiment, the rear end handle 1220 has a substantially hollow cylindrical shape closed at one end, and a rear end thereof is closed by the rear cap 1201. The front handle 1210 is generally in the shape of a hollow cylinder open at both ends, with the front opening to expose the front end wall 1110 of the base. Front handle 1210 and rear handle 1220 may be permanently or removably coupled together by any fastening means, such as welding, adhesives, threading, snap-fit connections, and any other coupling means known to those skilled in the art. In the embodiment shown in fig. 8 and 9, the front portion of the rear handle 1220 and the rear portion of the front handle 1210 are provided with external and internal threads, respectively, such that the front handle 1210 can be "screwed" to the rear handle 1220 and connected thereto by a screw-fit. Designing the handle as a split structure, i.e., a structure including the front end handle 1210 and the rear end handle 1220, makes the installation of the handle 1200 and other components of the door lock driving mechanism 1000 more flexible and easy, and reduces the possibility of interference with other components of the door lock driving mechanism 1000 during installation.

After the door lock driving mechanism 1, 1000 according to the present invention is assembled, its base 100, 1100 is close to the door 2 at the front and is mounted to the door panel of the door 2 via the mounting plate 5 (see fig. 1). After the door lock driving mechanism 1, 1000 is assembled, the power supply devices such as the motor (130, 1130), the battery, and the like, and the control modules such as the main control circuit board and the charging circuit board, and the like are disposed in the hollow inner space of the base 100, 1100. The gear case 300, 1300 is fastened to the base 100, 1100 by fastening means such as bolts 1301 shown in fig. 9. The gearbox 300, 1300 includes a length of outer wall 310, 1310 extending rearwardly therefrom, the outer wall 310, 1310 preferably being cylindrical and forming a generally cylindrical interior space inside the rear of the gearbox for receiving the expansion board 311/312, and/or the signal receiving board 1311. The spindle 101, 1101 extends through the gear housing 300, 1300 and the base plate 100, 1100 and extends from the front end of the base plate 100, 1100 forward up to a safety lock arranged inside the door panel of the door 2, so that the torque of the motor 130, 1130 can be transmitted to the safety lock to effect the opening and/or closing of the locking bolt of the door lock. Behind the handle 200 of the door lock driving mechanism 1 and/or the rear end handle 1220 of the door lock driving mechanism 1000, rear covers 201, 1201 are arranged for protecting the internal components from external dust, moisture or other foreign substances. The back covers 201, 1201 are preferably made of a dielectric material (e.g., a plastic material). The dielectric material used to make the back covers 201, 1201 is capable of passing the electromagnetic signal and maintaining its integrity without attenuating it, so that when the user intends to open the door lock indoors using remote control (electronic door card, cell phone) means, the back cover does not affect the reception of the control signal and the control elements inside the product are able to accurately receive the signal of unlocking.

In the embodiment shown in fig. 7-9, the gearbox 300, 1300 is arranged to extend rearwardly from the chassis 100, 1100. The inner space of the gear case part 300, 1300 and the inner space of the base 100, 1100 are separated from each other, so that the inner space of the gear case 300, 1300 is large without occupying the installation space with a large volume of components such as a battery, a motor (130, 1130), and the like. Thus, the gears may be more flexibly arranged in the interior space of the gearbox 300, 1300 according to specific requirements. The reduction ratio of the gears can be flexibly set as required. In particular, the reduction ratio of the gears can be set large and combined with an increased torque rating of the spindles 101, 1101 to be able to adapt to the requirements of the operating torques of the various door lock cylinders on the market.

Since the internal space of the gear case 300, 1300 is large, the gear transmission can be arranged more flexibly without considering too much space limitation. In particular, the gears in the gear transmission system arranged in the gear boxes 300, 1300 may be designed to run all around, so that the rotational movement of the spindle is not limited by the angle of operation due to the mechanical structure, so that the door lock drive mechanism 1, 1000 according to the present invention can be applied to various door lock safety levels.

The signal receiving element may be provided at the expansion wiring board 311/312, and/or the signal receiving wiring board 1311, and the expansion wiring board 311/312, and/or the signal receiving wiring board 1311 are disposed at positions as close to the rear covers 201, 1201 as possible. In one embodiment, the base 100, 1100 and the handle 200, 1210/1220 are made of a metal material so that sufficient strength of the door lock driving mechanism 1, 1000 can be secured. Since the metallic material may partially attenuate the instruction signal for instructing unlocking or locking, arranging the signal receiving element as close as possible to the rear end of the door-lock drive mechanism 1, 1000 of the back cover 201, 1201 enables to avoid attenuation of the signal by the metallic material to some extent. In addition, as described above, the back covers 201, 1201 are preferably made of a dielectric material (e.g., a plastic material). The dielectric material used to fabricate the back covers 201, 1201 is capable of passing electromagnetic signals and maintaining their integrity without attenuating them so that the back covers 201, 1201 do not interfere with the reception of control signals.

Further, since the signal receiving circuit board 1311 and/or the expansion circuit board 311/312 on which the signal receiving device is arranged are disposed at the rear of the gear case 300, 1300 so as to be separated from the battery, the motor (130, 1130), the main control circuit board, the charging circuit board, and the like disposed in the cradle 100, 1100, the mutual electrical interference therebetween is avoided.

[ arrangement of base ]

Fig. 10 shows a cross-sectional view of the base 100 showing the relative positions of the motor 130, the spindle 101, the main control circuit board 120, and the charging circuit board 140. A battery compartment 150 is also provided in the base 100 for receiving and fixing a battery for supplying power to the door lock driving mechanism 1. If the power of the door lock driving mechanism 1 is insufficient, the user may open the buckle 113, detach the door lock driving mechanism 1 from the door 2, and open the battery cover 170 (see fig. 16) to replace or install the battery. Fig. 10 shows two battery compartments of the door lock drive 1. In alternative embodiments, the number of battery compartments may be set as appropriate according to the amount of power required to accommodate a corresponding number of batteries. Further, it is preferable that the cradle 100 is further provided with a USB charging socket 115 (see fig. 7) for charging the battery through a USB interface. The USB charging jack 115 allows a user to charge the door lock driving mechanism 1 using a mobile power supply in an emergency without detaching the door lock driving mechanism 1, thereby allowing the door lock driving mechanism 1 to operate normally; or so that the door lock driving mechanism 1 as a whole is charged without disassembling the battery, thereby extending the life of the internal mechanical components of the door lock driving mechanism 1.

From the exploded view of fig. 7 and the sectional view of fig. 10, it can be seen that the main control circuit board 120, the charging circuit board 140, the motor 130 and the battery are installed in the inner space of the cradle 100. In the inner space, the main control circuit board 120 is disposed in a separate space defined by a portion of the outer wall 116 of the base 100 and the partition plate 121 so as to be separated from the motor 130, the battery, the spindle 101, and the like, to protect the main control circuit board and the electronic components thereon. Further, the charging board 140 is disposed in a separate space defined by a portion of the outer wall 116 of the base 100, a portion of the outer wall 151 of the battery compartment 150, and the fixing tabs 141, so as to be also separated from the motor 130, the battery, the spindle 101, and the like, to protect the charging board 140 and the electronic components thereon.

Fig. 11 shows an exploded perspective view of a state where the charging wiring board 140 and the fixing tabs 141 are not mounted in the cradle 100. Fig. 12 shows a rear view of the chassis 100. Fig. 13 shows a side sectional view of the chassis 100, in which the charging wiring board 140 and the fixing tabs 141 have been mounted in the chassis 100.

During installation of the charging cord board 140, since the USB socket element 142 is provided at an end of the charging cord board 140 close to the outer wall 116 of the chassis 100, and the socket element 142 optionally extends partially into the outer wall 116 of the chassis 100 (the socket element 142 may extend to be flush with or slightly recessed from the outer surface of the outer wall 116 of the chassis 100), the charging cord board 140 cannot be directly inserted into the chassis 100 in the axial direction. In order to avoid interference of the charging circuit board 140 with the cradle 100, it is necessary to radially move the charging circuit board 140 in the direction of arrow B shown in fig. 12 after placing the charging circuit board 140 into the inner space in the cradle 100 so as to align it with the corresponding USB charging jack 115 of the outer wall 116 of the cradle 100 at the time of installation. A front portion (a portion near the door 2) of the base 100 is provided with a guide slot 143 for guiding axial and radial movements of the charging board 140 to position the charging board 140 to a correct position. In the illustrated embodiment, there are two guide card slots 143 that guide the charging wiring board 140; in alternative embodiments, however, the number of guide slots 143 may be flexibly selected depending on the particular arrangement in the base 100.

After the charging wiring board 140 is guided into position, the fixing tabs 141 are inserted in the axial direction for fixing the charging wiring board 140 in position. The fixing tabs 141 are fixed in the base 100 by the grooves 152 (see fig. 14) arranged in the outer wall 151 of the battery case 150, and one ends of the fixing tabs 141 are inserted into the base 100 (see fig. 11). As can be seen from fig. 11, after the fixing tabs 141 are mounted in place, the radial movement of the charging board 140 is restricted by the fixing tabs 141. In particular, since the charging cord board 140 is arranged with the USB socket element 142 for receiving the USB charging device, the fixing tabs 141 further contribute to avoiding loosening of the charging cord board 140 or undesired movement in the chassis 100 due to a radial force acting on the fixing tabs 141 when inserting the USB charging device in the radial direction.

Further, after the base 100 and the gear case 300 are coupled together, the other end of the fixing tab 141 and the rear end (end remote from the door 2) of the charging circuit board 140 are fixed in position by the end face of the gear case 300. Specifically, the rear end of the charging circuit board 140 is fixed in position by a corresponding card slot 321 disposed on the gear case 300, as shown in fig. 11. Similarly, the main control circuit board 120 is also secured in place by a corresponding card slot 144 disposed in the base, and a corresponding card slot 341 disposed in the gear box. Since the main control circuit board 120 has no interface for connection to an external device, it can be easily inserted into the inner space of the base 100 in the axial direction without movement in the radial direction.

Fig. 14 shows a perspective view of the chassis 100 seen from the rear, which shows the arrangement of the inner space of the chassis 100. As can be seen in fig. 14, a slot 161 is disposed between the outer wall 116 of the base 100 and the outer wall 151 of the battery compartment 150, and the slot 161 is used for connecting the wiring board 140 and other wiring boards (including the main control wiring board and the expansion wiring board). Preferably, the wiring between the charging wiring board 140 and the other wiring boards is implemented by a flexible board (not shown). The flexible board occupies less space and can be flexibly arranged according to the requirement. The slot 161 for passing the flexible board may be designed to be very small in size, thereby being capable of contributing to a compact arrangement of the components in the base 100.

A groove 152 is arranged in the outer wall 151 of the battery compartment 150 for receiving and securing in place a securing tab 141 inserted in the axial direction. The groove 152 extends in a direction parallel to the axial direction. Alternatively, the groove 152 may extend in a direction at an angle to the axial direction to hold the fixing tab 141 at an angle to the axial direction. A main wire passing hole 103 for a signal wire 4 (see fig. 1) to extend therethrough is disposed in the front end wall 110 of the base 100 to extend through the front end wall 110. The signal line 4 is used to connect the internal wiring of the door lock driving mechanism 1 with a signal receiving unit disposed outdoors (i.e., outside the door 2) so that the door lock driving mechanism 1 can perform an unlocking action in response to a signal (such as, but not limited to, a password input, a human biometric input, a remote control signal input, etc.) received from the signal receiving unit disposed outdoors. The partition plate 121 is provided with a cutout 122 for wiring of internal wiring. In the embodiment shown in fig. 14, the cut 122 is stepped in multiple stages, so that the connection lines can be arranged at different steps according to the number of the connection lines while maintaining the fixation of the connection lines. In alternative embodiments, the cutout 122 may take on other shapes.

Fig. 15 shows a front perspective view of the base plate 100, wherein the battery cover 170 has been removed from the base plate 100. Fig. 16 shows a perspective view in which the battery cover 170 is separated from the base 100. In the embodiment shown in fig. 15, a groove 118 is disposed in the outer wall 116 of the base 100. In the recess 118, a mode selection module is disposed, and the user can select an operation mode of the door lock driving mechanism 1 (i.e., select an operation mode/program of the main control circuit board) through the mode selection module, or reset a product through the mode selection module. The mode selection module is optionally a plurality of buttons, or a touch screen. Above this recess 118 a cover (not shown) is optionally arranged, which can completely cover the recess 118 by means of a connection known to the person skilled in the art and which can also be opened to expose the mode selection module in the recess 118. The cover serves to seal and protect the components disposed in the chassis 100 from environmental contaminants. In an alternative embodiment, there is no recess 118 in the outer wall 116 of the base 100 for the mode selection module to be disposed, and the user can change the operation mode of the door lock driving mechanism 1 and/or reset the door lock driving mechanism 1 by a sensing device (sensing card) or a remote control device (mobile phone or remote control).

A USB charging socket 115 is disposed in an outer wall 116 of the cradle 100 for charging a battery in a battery compartment disposed in the cradle 100 by an external power source, thereby avoiding a complicated operation of opening the door-lock driving mechanism 1 and removing/replacing the battery. A retaining shoulder 119 is disposed on the outer wall 116 in the circumferential direction and extends outward from the outer wall 116 in the radial direction. The stop shoulder 119 serves to limit the axial position of the handle 200, preventing it from being inadvertently disengaged from the base 100 after being installed in place. The manner in which the retaining shoulder 119 is secured to the handle 200 is described in detail below.

As can also be seen from the front perspective view of the base 100 of fig. 15, a mandrel hole 102, a main wire passing hole 103, a buckle mounting hole 104, a battery cover mounting hole 105 are arranged at the front end wall 110 of the base 100 for positioning and mounting of the mandrel 101, the signal wire 4, the buckle 114, and a battery cover fastening device (such as a screw), respectively.

In the embodiment according to the present invention, the battery used is a general fifth battery or a seventh battery. Thus, the battery case 150 is arranged in the form of a cylindrical through-hole. A battery cover 170 is disposed at the front end wall 110 of the base 100 for covering and protecting the batteries located in the battery compartment 150. The battery cover 170 may be fixed to the front end wall 110 of the base 100 by a battery cover fastening means (such as screws); the user can open the battery cover and remove/replace the battery by detaching the battery cover fastening means from the base 100. Alternatively, the battery cover 170 may be mounted to the base 100 by any means known to those skilled in the art. For example, the battery cover 170 may be mounted to the base 100 via a snap-fit connection, such that a user can easily mount and/or dismount the battery cover 170. In addition, the battery cover 170 may be permanently fixed to the base 100 by means of an adhesive, welding, or the like, so that the battery disposed in the base 100 can supplement power thereto only by charging it through the USB charging socket. The number of batteries may be appropriately selected according to the voltage to be supplied. In the embodiment shown in the figures, the base 100 includes two battery compartments for receiving two batteries. A connection member (not shown) is mounted in the mounting position 171 at the rear of the battery cover 170 for connecting the batteries accommodated in the battery compartment 150 in series when the battery cover is mounted to the front end wall 110 of the base 100. A plurality of mounting positions 171 may be included at the rear of the battery cover 170 to receive and fix a plurality of connection members for connecting a plurality of batteries in series according to the number of the batteries serially arranged in the base 100. The connecting element can be simply fixed to the battery cover by means of a snap or glue. The connection of the connection member with the battery is further secured by the connection of the base 100 and the battery cover 170 via the battery cover fastening means.

Alternatively, the battery for supplying power to the door lock driving mechanism 1 may employ other types of batteries, such as a button battery, a rechargeable lithium battery, and the like. The form of the battery cover and the connecting member can be flexibly selected according to the form of the type of battery employed.

[ Gear case Structure ]

FIG. 17 shows an exploded perspective view of the gearbox 300 and the bedplate 100 between unassembled together. The gearbox 300 includes a gearbox housing 320 and a gearbox cover 340. The base 100, the gear housing 320 and the gear housing 340 are connected and fixed as a whole by a connecting member (e.g., a screw). The gear housing 320 is provided with a card slot 321 for receiving the charging circuit board 140 and cooperates with the guide card slot 143 in the base 100 to fix the charging circuit board 140 in position, thereby restricting axial displacement of the charging circuit board 140. The gearbox cover 340 is also provided with a slot 341 for receiving the main control circuit board 120 and cooperating with the slot 144 in the base 100 to secure the main control circuit board 120 in place, thereby limiting axial displacement of the main control circuit board 120. Since the main control circuit board 120 is the main control circuit of the door lock driving mechanism 1, the gear box cover 340 with its fixing slot being arranged near the rear portion of the door lock driving mechanism 1 helps to receive the main control circuit board 120 with a larger size, so as to be able to realize more control functions on the main control circuit board 120. In an alternative embodiment, the main control circuit board 120 may be designed to have a smaller size so as to be completely accommodated in the space in the base 100. In such an embodiment, a fixing card slot for the main control circuit board 120 may also be provided on the end face of the gear case 300 similarly to the fixing card slot 321 for the charging circuit board 140.

A battery electrode mounting location 322 is also provided on the front end face of the gear housing 320 for mounting contacts (not shown) for contacting the positive and negative electrodes of the battery. The contacts lead the positive and negative poles of the battery out of the battery compartment 150 and are connected to the corresponding circuit board by leads. The contacts may be mounted to the battery electrode mounting locations 322 by welding, gluing, snapping, or the like.

Fig. 18 shows a rear perspective view of the gearbox 300 with the expansion board 311, 312 not installed in the gearbox 300. The gear housing 320 is generally cylindrical, and a radial portion thereof away from the center of the circle is cut away to avoid interference with the main control circuit board 120 having a large size. Alternatively, in embodiments where the main control circuit board 120 is small in size and can be completely received in the space of the base 100, the gear housing 320 is a complete cylinder. The main control circuit board 120 having a large size is disposed in the space between the base 100 and the gear housing 300, so that the size required for the base 100 can be reduced, and the longitudinal structure of the door lock driving device 1 can be made more compact. By locating the main control circuit board 120 away from the center of the gear housing 320, (i.e., near the circumference of the generally cylindrical gear housing 320), the overall structure and interior space of the gear housing 320 can be made as large as possible to achieve the multi-stage reduction and full-revolution functions of the transmission system 360 disposed therein.

The gearbox cover 340 is generally congruent in construction at the front with the gearbox housing 320, but is generally cylindrical in shape at the rear and has a cylindrical outer wall 310. The cylindrical outer wall 310 surrounds a cylindrical interior space 343 for receiving and securing the expansion boards 311, 312. When the size of the circuit board in the base 100 is still insufficient, part of the modules may be disposed on the expansion circuit boards 311, 312 to enable the door lock driving mechanism 1 to realize more functions/modes without excessively increasing the longitudinal (axial) size of the door lock driving mechanism 1. Further, signal receiving elements may be provided on the extension circuit boards 311, 312 (preferably on the circuit board 312) so that the signal receiving elements in the room are close to the rear end of the door lock driving mechanism 1, thereby enabling accurate reception of an unlocking signal from a remote control device (a mobile phone, an electronic door card, or the like).

Since the handle 200 is fitted over the gear housing 300 and arranged around the gear housing 300 after the door lock drive mechanism 1 is assembled, the longitudinal dimension of the gear housing 300 greatly affects the longitudinal dimension of the handle 200. Considering that the handle 200 is a manual mechanism for operating the door lock, the outer dimensions of the handle 200 cannot be designed to be excessively large in order to ensure hand comfort during operation and maintain the aesthetic appearance thereof. Optionally, the handle 200 has a diameter in the range of 40 to 100 mm. Preferably, the diameter of the handle is in the range 55 to 65 mm. More preferably, the diameter of the handle is chosen to be 60 mm. The shape of the gear case body 320 and the gear case cover 340 of the gear case 300, and the feature of the inner space 343 formed by the cylindrical outer wall 310 disposed at the rear of the gear case cover 340 can contribute to achieving a compact longitudinal structure of the gear case 300, the base 100, and thus the entire door-lock driving mechanism 1.

In the illustrated embodiment, two expansion circuit boards 311, 312 are disposed in the interior space 343. However, in alternative embodiments, the number of expansion board 311, 312 may be flexibly selected depending on the particular application. Depending on the functions to be realized by the door lock driving mechanism 1 and the number of electronic modules required, only one expansion board may be used, or more than two expansion boards may be used.

In addition, the configuration of the cylindrical outer wall 310 at the rear end of the gearbox cover 340 may also help to maintain a good circumferential fit of the gearbox 300 with the handle 200, thereby ensuring stability of the handle.

FIG. 19 shows a side view of the base 100, gearbox 300, and handle 200, where the handle 200 has not yet been assembled to the base 100 and gearbox 300. As can be seen in fig. 19, the cylindrical rear wall 310 at the rear of the gearbox cover 340 serves as an inner support for the handle 200 in the radial direction. If the gear box cover 340 is entirely the same shape as the gear box body 320, i.e., there is no cylindrical rear wall 310, rigidity in the radial direction of the handle 200 may be insufficient, which may cause shaking of the handle 200 and even loosening of the connection of the handle 200 and the base 100 to cause disengagement of the handle 200.

Fig. 20 shows a sectional view in a state where the expansion wiring boards 311, 312 are not mounted in the inner space 343 formed by the cylindrical outer wall 310 at the rear of the gear case cover 340. Fig. 21 shows a sectional view in a state where the expansion wiring board has been mounted in the internal space 343. Fig. 22 shows a rear view of the gear housing 300 in a state where the expansion wiring board 311 is mounted to the internal space 343 and the expansion wiring board 312 is not mounted to the internal space 343. Fig. 23 and 24 show a rear view and a rear perspective view of the gear housing 300 in a state where the expansion wiring boards 311, 312 are both mounted to the internal space 343, respectively.

Fig. 20-24 illustrate one manner of securing the two-layer expansion circuit boards 311, 312 within the interior space 343 of the gearbox cover 340. Hereinafter, in order to distinguish and facilitate description of the expansion wiring boards 311, 312, the expansion wiring board 311 near the bottom of the gearbox cover 340 is referred to as a lower layer wiring board 311, and the expansion wiring board 312 far from the bottom of the gearbox cover is referred to as an upper layer wiring board 312.

The lower layer wiring board 311 and the upper layer wiring board 312 are fixed in the inner space 343 by two rows of snaps 344, 345, respectively, which are spaced apart in the axial direction.

The lower wiring board 311 is secured between the snaps 344 and the middle plate 346 of the gearbox cover 340 by the snaps 344 that are circumferentially disposed along the cylindrical outer wall 310 of the gearbox. The intermediate plate 346 serves as an end face of the gearbox cover 340 for separating the expansion board 311, 312 from other components in the gearbox to protect/isolate the gearbox interior. In the embodiment shown in fig. 20-24, the snaps 344 are arranged in the form of barbs having projections. When the lower wiring board 311 is pressed to the catches 344 in the downward direction shown in fig. 20, the catches 344 deflect outward in the radial direction so that the lower wiring board 311 can move further downward until passing over the projections of the catches 344. After the lower circuit board 311 clears the projections of the snaps 344, the snaps 344 spring back in a radial direction inward to hold the lower circuit board 311 in place. In the embodiment shown in fig. 22, three snaps 344 hold the lower wiring board 311 in place. However, the number of snaps 344 may alternatively be increased or decreased.

In the intermediate plate 346, a plurality of through-holes 347-1,347-2,347-3,347-4 are also arranged. The plurality of through holes are adapted to receive a coupling means for coupling the gear housing 300 and the base 100 as a unit. Alternatively, the attachment means is preferably a screw, and the plurality of through holes are arranged as threaded, or partially threaded, threaded holes for receiving the screw. In the illustrated embodiment, the lower cord plate 311 includes a retaining recess 313 (see also fig. 18) that cooperates with a projection of one of the screw holes 347-4 to define the radial position of the lower cord plate 311 (preventing it from moving in the direction indicated by arrow C) and to prevent rotation of the lower cord plate 311. The use of the projections of the screw holes 347-4 for restraining the lower wiring board 311 can partially reduce the separate components disposed in the gear box cover 340 for positioning the lower wiring board 311, thereby saving space in the gear box cover 340 and achieving a more compact arrangement of the components in the internal space 343 in the gear box cover 340, and/or the size of the wiring board accommodated in the internal space 343 can be larger, thereby enabling a richer function of the door lock driving mechanism 1.

A plurality of ribs 348 are disposed within the interior of the outer wall 310 of the gearbox cover 340. The plurality of ribs 348 extend inward in a radial direction from the inner side of the outer wall 310 and provide a mounting plane for the upper circuit board 312. The top surfaces of the plurality of ribs 348 are disposed closer to the rear of the gearbox cover 340 (i.e., above the snaps 344 in the orientation of fig. 20) so that the upper circuit board 312 is positioned on the top surfaces of the plurality of ribs without interfering with the snaps 344 and the lower circuit board 311.

The plurality of ribs 348 may be arranged at uniform intervals along the inside of the outer wall 310 to provide more uniform support to the upper circuit board 312. The plurality of ribs may also be flexibly arranged at appropriate positions according to the arrangement of other components in the gear box cover 340, thereby achieving optimal utilization of space.

The upper deck circuit board 312 is secured between the snaps 345 and the top surfaces of the ribs 348 by the snaps 345. The catch 345 is disposed about a hole 349 for extending the spindle 101 therethrough. Disposing the snaps 344 proximate the outer wall 310 and the snaps 345 proximate the apertures 349 may avoid interference with the snaps 344, 345 and with the snaps 345 when the underlying circuit board 311 is installed.

In the illustrated embodiment, the catch 345 is also arranged in the form of a barb with a projection, similar to the catch 344. When the upper deck boards 312 are pressed to the catches 345 in a downward direction as shown in fig. 20, the catches 345 deflect inward in a radial direction so that the upper deck boards 312 can move further downward until passing over the projections of the catches 345. After the upper circuit board 312 passes over the protrusion of the catch 345, the catch 345 springs back in place radially outward, holding the upper circuit board 312 in place. In the embodiment shown in fig. 22, four snaps 345 hold the upper circuit board 312 in place. However, the number of snaps 345 may alternatively be increased or decreased.

In the embodiment shown in fig. 20-24, both the lower wiring board 311 and the upper wiring board 312 are arranged with openings that allow the snaps 345 to pass through. In particular, the opening of the lower circuit board 311 allows the lower circuit board to move downward past the catch 345 during installation until it passes the catch 344 and is secured by the catch 344. The outer diameter of the lower wiring board 311 is smaller than the outer diameter of the upper wiring board 312 so that the lower wiring board 311 is not obstructed by the ribs 348 and/or interfered with by the ribs 348 during installation.

Also disposed on the inside of the cylindrical outer wall 310 of the gearbox cover 340 is a stiffener 350 having two longitudinal ribs 351. The two longitudinal ribs 351 limit the rotational freedom of the upper circuit board 312. In addition, the ribs 350 and ribs 348 can also help to increase the radial strength of the cylindrical outer wall 310 of the gearbox cover 340, thereby ensuring radial support for the handle 200.

[ Gear case drive ]

Fig. 25 shows a schematic perspective view of the drive train 360 of the gearbox 300. The torque generated by the motor 130 is transmitted to the final gear 361 by the reduction of more than two gears. The reduction transmission of more than two gears can form a larger reduction ratio of the gears, so that the requirements of various working moments of lock cylinders of door locks on the market can be met.

In the illustrated embodiment, the final gear 361 is a hollow gear, and the spindle 101 extends through the final gear 361. The connection of the spindle 101 and the final gear 361 is a disengageable clutched connection. In a normal operating state (i.e., the electrical part of the door lock drive mechanism 1 is operating normally), the spindle 101 is pressed against and engaged with the final gear 361 by the spring force of the spring 365. Therefore, in this state, the torque generated by the motor can be transmitted to the final gear 361 through the reduction transmission of the multi-stage gear, and the torque is transmitted to the spindle 101 via the engagement of the spindle 101 and the final gear 361, thereby achieving the door opening action.

When the electric part of the door lock driving mechanism 1 is failed or the electric quantity is insufficient, so that the door lock driving mechanism 1 cannot automatically drive the lock cylinder 101 to rotate, and the handle 200 needs to be manually rotated to realize the door opening action, the transmission system 360 of the gear box 300 cooperates with the operation of the clutch unit 400 to disengage the spindle 101 from the transmission system 360 (particularly from the final gear 361), thereby avoiding the damage to the door lock driving mechanism 1 caused by manual operation. The disengagement process will be described in detail below in connection with the structure of the clutch unit 400.

Fig. 26 shows a perspective view of the final gear 361 and the drive wheel 362. Fig. 27 shows an end view of the final gear 361 and the drive wheel 362. Fig. 25-27 illustrate an exemplary connection of the final gear 361 and the spindle 101.

In the illustrated embodiment, the drive wheel 362 is disposed between the final gear 361 and the mandrel 101, and one end of the drive wheel 362 is crimped to an end of the final gear 361. The other end of the transmission wheel 362 is arranged with a plurality of bosses 363. In fig. 26-27, the drive wheel 362 is shown as including three bosses 363; however, in alternative embodiments, the end of the drive wheel 362 may be provided with two or more than three bosses 363. A plurality of bosses 106 are also provided at the end of the spindle 101 that engages with the transmission wheel 362, and the number of bosses 106 of the spindle 101 coincides with the number of bosses 363 of the end of the transmission wheel 362. When the spindle 101 is pressed against the drive wheel 362 by means of the force of the spring 365, the boss 363 of the drive wheel 362 engages with the boss 106 of the spindle 101, and the drive wheel 362 transmits a torque to the spindle 101 to rotate it, so that the rotation of the spindle 101 is synchronized with the drive wheel 362 and thus with the final gear 361.

It is advantageous to arrange a drive wheel 362 between the final gear 361 and the spindle 101. Since the final gear 361 is hollow such that the spindle 101 extends therethrough, the wall 364 of the final gear 361 that is used to transmit torque is relatively thin. If no transmission wheel 362 is arranged between the final gear 361 and the spindle 101, the idle stroke of the spindle 101 during the forward and reverse rotation will result in direct impact of the spindle 101 with the thinner wall 364 of the final gear 361, and the thinner wall 364 will gradually wear due to the impact, resulting in a reduced accuracy of the door lock driving mechanism 1 and even failure to work properly. In an embodiment of the present invention, the wall thickness of the driving wheel 362 in the radial direction is larger than the wall 364 of the final gear 361, so that the wear caused by the impact with the final gear 361 due to the idle running during the rotation of the spindle 101 can be reduced and/or eliminated. The feature of final gear 361 thus helps to reduce the failure rate of door lock drive mechanism 1 and extends the useful life of door lock drive mechanism 1.

In an alternative embodiment, the final gear 361 is directly connected with the spindle 101 and there is no transmission wheel 362 arranged therebetween. In particular, in a door lock configuration with a low transmitted torque, the amount of impact caused by the lost motion of the spindle with the wall 364 of the final gear is low, and the wear caused to the final gear 361 is low, so that the transmission wheel 362 need not be provided. In addition, the omission of the transmission wheel 362 can reduce the number of parts, thereby reducing the production cost of the door lock driving mechanism 1.

[ mounting structure of handle ]

Fig. 28 shows a perspective view of the door-lock drive mechanism 1 in which the handle 200 is not mounted to the base 100. Since the handle 200 is used for a user's grip to manually operate the door lock to open, the handle 200 is undesirably oversized in size, thereby ensuring a comfortable feeling when the user grips the handle 200. Optionally, the handle 200 has a diameter in the range of 40 to 100 mm. Preferably, the diameter of the handle is in the range 55 to 65 mm. More preferably, the diameter of the handle is chosen to be 60 mm. However, since the internal structure of the base 100 is arranged to be very compact, the attachment of the handle 200 is fixed, and it is not desirable to increase the radial size of the door lock driving mechanism 1 excessively; therefore, the available attachment securing space for attaching and securing the handle 200 to the base 100 is relatively small.

The utility model provides a connection fixing mode which occupies little space so as to fix the handle 200 to the base 100. In an embodiment of the present invention, the installation of the handle 200 nested to the base 100 only occupies a radius distance of more than 2 mm. In an embodiment according to the present invention, a thin-walled fixed mounting structure is employed; specifically, the present invention employs a slip-off prevention ring 210 for securing the handle 200 to the base 100. During the assembly process, the handle 200 is connected to the base 100 by simply moving the handle sleeve 220 forward along the direction D1 to a corresponding position and then moving the anti-slip ring 210 along the direction D2 to engage with the handle sleeve 220. The assembly of the handle 200 and the base 100 by the slip-off preventing ring 210 makes the assembly process of the door-lock driving mechanism 1 easy to operate and occupies a small space in the radial direction.

FIG. 29 shows a cross-sectional view of the handle 200 and base 100 mated together. Fig. 30 shows an exploded perspective view of the anti-slip ring 210 and the handle sleeve 220. The anti-slip ring 210 is provided with a plurality of catching portions 211 along its circumferential wall. The locking portion 211 is separated from the other portion of the circumferential wall of the slip-off prevention ring 210 by two slots 212, and is connected to the slip-off prevention ring 210 by a coupling portion 213. In the illustrated embodiment, the anti-slip ring 210 includes four catches 211 that are uniformly circumferentially arranged to provide a circumferentially uniform retention force to maintain engagement of the anti-slip ring 211 with the handle sleeve 220. In alternative embodiments, other numbers of the catching portions 211 may be provided, and the catching portions 211 may be appropriately arranged at the escape prevention ring 210 according to the arrangement of other components, not necessarily uniformly arranged in the circumferential direction, thereby achieving a compact and flexible arrangement. The catch 211 is arranged with a through hole 214 for maintaining engagement with the handle sleeve 220.

Accordingly, the handle sleeve 220 includes a plurality of positioning portions 221 corresponding to the catching portions 211 at a position near the front end. The number and arrangement positions of the positioning parts 221 correspond to the catching parts 211 of the escape prevention ring 210, so that the positioning parts 221 can be engaged and caught with the corresponding catching parts 211. Each positioning part 221 includes two guide ribs 222. When the anti-slip ring 210 and the handle sleeve 220 are fitted together, the two guide ribs 222 are received in the slots 212 of the respective catches 211 of the anti-slip ring 210 and serve to guide the longitudinal movement of the anti-slip ring 210 and/or the handle sleeve 220. A projection 224 is also disposed between the guide ribs 222 of each positioning portion 221. When the anti-slip ring 210 and the handle sleeve 220 are fitted together, the through-holes 214 provided at the catching portions 211 of the anti-slip ring 210 engage and receive therein the protrusions 224 at the corresponding positioning portions 221 to achieve the fixed connection of the anti-slip ring 210 and the handle sleeve 220.

Alternatively, although in the embodiment of the present invention, the through hole 214 is disposed at the anti-slip ring 210 and the protrusion 224 is disposed inside the handle sleeve 220, a concave portion may be disposed inside the handle sleeve 220 and a protrusion matching the concave portion inside the sleeve 220 may be disposed at the anti-slip ring 210.

The front end of the anti-slip ring 210 is provided with a shoulder 215 for engaging a retaining shoulder 119 when the sleeve 200 is fitted to the base 100, the retaining shoulder 119 being disposed on the outer wall 116 of the base 100 and the retaining shoulder 119 extending outwardly from the outer wall 116 in a radial direction. During installation, the anti-slip ring 210 is fitted to the base 100 in the direction D2 until it engages the retaining shoulder 119 of the outer wall 116 of the base 100. The handle sleeve 220 is fitted to the base 100 in the opposite direction (D1) and is fixedly connected with the anti-slip ring 210 via the cooperation of the through hole 214 and the protrusion 224. Such that rearward movement of the handle 200 (i.e., movement in the direction D2) is limited by the limit shoulder 119. In addition, forward movement of the handle 200 (i.e., movement in the direction of D1) is limited by the cylindrical outer wall 310 of the rear portion of the gearbox cover 340. Therefore, in the embodiment according to the present invention, when the handle 200 is fitted to the base 100, the back and forth movement of the handle 200 is restricted, so that a stable handle position can be maintained without being randomly moved when the user grips the handle 200 for a manual unlocking operation.

Fig. 31 shows the internal structure of the handle sleeve 220. A plurality of reinforcing ribs 225 are disposed inside the handle sleeve 220. The plurality of reinforcing ribs 225 are arranged rearward of the guide rib 222, i.e., the front ends of the reinforcing ribs 225 are arranged closer to the rear end of the handle 220 than the rear end of the guide rib 222, so that the reinforcing ribs 225 do not interfere with the fitting of the handle sleeve 220 and the drop-off prevention ring 210. The reinforcing rib 225 enhances the radial strength of the handle 200, and can better support the outer wall of the gear box 300 along the radial direction, so as to prevent the gear box 300 from shaking during operation. In particular, during assembly, handle sleeve 220 is a gapless and/or interference fit with the outer wall of gearbox 300 such that stiffening ribs 225 press against the outer wall of gearbox 300 with a certain pressure, thereby radially supporting gearbox 300. Alternatively, the number of the reinforcing ribs 225 may be flexibly set according to specific requirements. Further, a plurality of reinforcing ribs 225 may be evenly distributed circumferentially along the inside of the handle sleeve 220 to provide even radial support for the gearbox 300; the plurality of reinforcing ribs 225 may also be flexibly arranged inside the handle sleeve 220 according to the arrangement of other components, and may not necessarily be uniformly distributed in the circumferential direction.

The rear end of the handle sleeve 220 has a through hole 226 with a large area for receiving a signal transmitted from an external device and/or transmitting a signal to the external device through the through hole 226. In particular, the rear end of the handle sleeve 220 is covered by a rear cover 201 (not shown in fig. 31). The rear cover 201 covers and protects the internal elements from external dust, moisture or other impurities. The back cover 201 is preferably made of a dielectric material (e.g., a plastic material). The dielectric material used to make the back cover 201 is capable of passing electromagnetic signals and maintaining its integrity without attenuating them, so that when a user intends to open the door lock indoors using remote control (electronic door card, cell phone) means, the back cover 201 does not affect the reception of control signals, and the control elements inside the product can accurately receive the signals of unlocking.

The rear end of the handle sleeve 220 is provided with a coupling means 227 for cooperating with the clutch unit 400 to transmit the torque applied by the user through the handle 200. In the illustrated embodiment, the connection 227 is designed in the form of a raised, relatively flat cross-spline (flat potential). Providing the connecting means 227 in the form of a flat cross spline reduces the longitudinal length of the handle 200. A joint 228 connects the connecting means 227 to the outer wall of the handle sleeve 220. Mounting holes 229 are arranged in the joints 228 for receiving fastening means for fixing the back cover 201 to the handle sleeve 220. In the embodiment shown in fig. 31, the coupling portion 228 has a rib 230 extending in the radial direction and intersecting the axis of the mounting hole 229. The ribs 230 help to increase the strength of the connection 228 at the location of the mounting hole 229, since the location of the mounting hole 229 is subjected to a large force. In the illustrated embodiment, the mounting holes 229 are threaded holes and are used to receive screws that secure the back cover 201 to the handle sleeve 220. Alternatively, the mounting holes 229 may be holes for receiving other types of fastening devices (e.g., rivets, posts, etc.).

In an alternative embodiment, the handle may be designed as a split configuration, as shown in FIG. 8, wherein the handle 1200 includes a front handle 1210 and a rear handle 1220. In the embodiment shown in fig. 8 and 9, the front portion of the rear handle 1220 and the rear portion of the front handle 1210 are provided with external and internal threads, respectively, such that the front handle 1210 can be "screwed" to and connected with the rear handle 1220 by a threaded fit. Designing the handle as a split structure may make assembly of the handle 1200 with other components of the door lock drive mechanism 1000 more flexible and easy, and may reduce the possibility of interference with other components of the door lock drive mechanism 1000 during assembly.

In addition, in contrast to the handle structure described with respect to fig. 28-30, the handle 1200 of the split configuration does not have a slip-off prevention ring. In the handle 1200 of the split type structure, after the front end handle 1210 and the rear end handle 1220 are coupled together by screw coupling, the gear box, the clutch unit and at least a part of the base are accommodated in a space formed by the front end handle and the rear end handle, and the stop ring 1211 of the front end handle is engaged with the limit shoulder 119 of the base, thereby fixing the gear box, the clutch unit and the base with the handle. The split configuration of the handle 1200 eliminates the configuration of the anti-slip ring, enables a simpler design, and requires a smaller number of components. Also, the fixation of the mutual position of the base and the handle, which is achieved by the screw connection of the front handle 1210 and the rear handle 1220, the engagement of the stop ring 1211 of the front handle and the stop shoulder 119 of the base, likewise hardly increases the radial dimension of the door lock drive mechanism, and further achieves a more stable connection, avoiding the handle 1200 and the base (or other components) from being inadvertently disengaged.

[ Clutch Unit ]

Fig. 32 shows a perspective view of a clutch unit 400 according to an embodiment of the invention. Fig. 33 shows a perspective view of the clutch unit 400 of fig. 32 from another angle, in which the stationary and moving clutch plates are in an initial state in which they are not relatively moved. The clutch unit 400 functions to separate the spindle 101 from the gear housing 300 when an unlocking/locking operation is manually performed using the handle 200. This disengaging action by the clutch unit 400 helps to avoid breakage of teeth of gears in the transmission system 360 due to mutual transmission of the spindle 101, the gear housing 300, and the motor 130 and/or damage to circuits inside the door lock driving mechanism 1 due to induced electromotive force generated by the motor 130 when the unlocking/locking operation is manually performed.

The clutch unit 400 includes a stationary clutch plate 403 and a movable clutch plate 404. The stationary clutch plate 403 engages the handle 200 and rotates as the handle 200 rotates. The stationary clutch plate 403 is provided with an inner helical surface 401 and an outer helical surface 402. The inner helical surface 401 and the outer helical surface 402 are arranged to be left-handed and right-handed, respectively. The dynamic clutch disc 404 has mating helical surfaces that mate with the inner and outer helical surfaces 401 and 402, respectively. In the context of the present invention, the term "right-handed" refers to handle 200 rotating counterclockwise when clutching, while the term "left-handed" refers to handle 200 rotating clockwise when clutching. In alternative embodiments, the rotational orientation of inner helical surface 401 and outer helical surface 402 may be interchanged. When the stationary clutch plate 403 rotates with the handle 200, because there are inner and outer helical surfaces 401, 402 that are oppositely handed, as long as there is a component that guides the moving clutch plate 404 axially, the mating helical surface of the moving clutch plate 404 will engage the inner or outer helical surface 401, 402 and move forward along the corresponding helical surface, along the axially-directed component, thereby disengaging the spindle 101 from the gearbox 300. This ensures that the user, when rotating the handle 200, either in the unlocking or in the locking direction, can disengage the spindle 101 from the transmission 360 of the gearbox 300, ensuring that this can be achieved in a simple and reliable manner: no damage to the drive train 360 and/or internal circuitry is caused by manual rotation of the handle 200 in either direction.

In an alternative embodiment, the stationary clutch plate 403 includes two inner-ring helicoids 401 (only one shown in fig. 32) arranged on the same circumference, and includes two outer-ring helicoids 402 arranged on the same circumference. Correspondingly, the dynamic clutch plate 404 also has two inner race mating helical surfaces and two outer race mating helical surfaces. The presence of the two helicoids makes the mating faces/sliding faces of the moving clutch disc and the fixed clutch disc larger, so that the mutual movement between the two is more stable and smooth.

In the embodiment of the clutch unit 400 shown in fig. 32, a clutch unit is provided in which the outer helical surface 402 and the inner helical surface 401 provide a right-hand and a left-hand, respectively. In this arrangement, the right-handed helical surface and the left-handed helical surface are provided on two circumferences, respectively. The two circumferences are concentric but have different diameters, i.e. outer coil 402 and inner coil 401 are at circumferential positions of different radial length from the longitudinal axis of the unit 400. Since the right-handed and left-handed helical surfaces are provided at two different circumferences, respectively, the respective two helical contact surfaces (i.e. the inner helical surface 401 and the outer helical surface 402) can be designed with a longer length. Accordingly, the lead angle per unit length when the movable clutch disk 404 and the fixed clutch disk 403 move relatively is small, so that the effort required by the user to operate the swing handle driving clutch unit 400 is small, and the relative movement of the movable clutch disk 404 and the fixed clutch disk 403 is smooth.

In the case of a more compact door lock drive 1, i.e. in the case of a smaller design space of the clutch unit, the above-described design of the inner and outer ring helicoids can be problematic. Specifically, the size of the outer circle of the clutch unit is designed to be small due to the limitation of the design space, so that the arrangement mode of the double-layer helicoids of the inner circle and the outer circle can cause the diameter of the helicoid of the inner circle to be further limited. In this way, the helix angle per unit length of the inner helical surface is too large, so that a user will need a greater force to drive the handle forward when driving the inner helical surface. In this case, the self-positioning torque of the lock cylinder may not be sufficient to secure the spindle in a guided manner, and the torque may be transmitted to the interior of the gear box, thereby causing a substantial reduction in the function and effectiveness of the clutch unit, and still possibly causing damage to the transmission 360 and/or internal circuitry when the handle 200 is rotated.

The utility model also provides an alternative implementation mode of clutch unit, it has solved because the defect that inner circle helicoid diameter undersize probably brought. In this alternative embodiment, the right-hand helical face 1402 and the left-hand helical face 1401 are at the same circumference, i.e. the right-hand helical face and the left-hand helical face are at circumferential positions of the same radial length from the longitudinal axis of the unit, as shown in fig. 36. Designing the left and right helicoids 1401, 1402 to be on the same circumference avoids the disadvantage of designing the inner helicoids too small due to size limitations and the possible damage to the door lock drive mechanism 1. In contrast to the inner and outer coil helicoid embodiments shown in fig. 32, in this alternative embodiment, the length/helicoid angle of the right and left-handed helicoids needs to be appropriately limited to avoid interference between the two. In the embodiment shown in fig. 36, the stationary and moving clutch plates each include two left-hand helical surfaces and two right-hand helical surfaces to aid in the stability of the relative rotation of the stationary and moving clutch plates when the handle is rotated. In an alternative embodiment, the stationary and movable clutch plates may include only one left-hand helical surface and only one right-hand helical surface to achieve a longer helical surface and a smaller helix angle, thereby helping to reduce the force required to turn the handle.

In the embodiment shown in fig. 32, the handle 200 has a diameter in the range of 40 to 100 mm. Preferably, the diameter of the handle is in the range 55 to 65 mm. More preferably, the diameter of the handle is chosen to be 60 mm. In the case of a handle diameter in the range 55 to 65mm, the outer diameter of the clutch unit is between 25 and 30mm, preferably 28 mm; the helix angle of the stationary clutch plate (i.e. the angle occupied by the entire helix of the stationary clutch plate, as in fig. 33 for helix segment a) is between 20 ° and 70 °, preferably 30 °. Considering the rotation angle and the required effort of the user when turning the handle, and considering the stability of the mutual movement of the fixed and movable clutch discs, the engagement angle of the left and right rotation of the fixed and movable clutch discs (i.e. the maximum angle of clockwise/counterclockwise rotation of the handle when the left or right rotation reaches the limit of travel, as in fig. 33 for the helical surface section B) is selected from between 15 ° and 45 °. Considering the problem of the torsion angle required by the user to open the door and rotate the handle, the rotation angle should be as small as possible. The rotating angle of the left rotation and the right rotation can be the same or different. In an alternative embodiment, the left and right hand twist angles of the fixed and movable clutch plates are the same and are each selected to be 20 °. The helix angle of the helical surface (namely the included angle between the helical surface and the bottom surface of the clutch disc, namely the included angle between the relative moving direction of the fixed clutch disc and the movable clutch disc and the bottom surface of the clutch disc) is selected from 15 degrees to 55 degrees by comprehensively considering the rotating angle of the rotating handle for opening the door of a user and the required force.

Fig. 34 shows a cross-sectional view of the clutch unit 400 and the spindle 101 in a mated state. Fig. 35 shows a perspective view of the clutch unit 400 and the spindle 101 in a mated state, in which the helical stroke of the clutch unit 400 reaches a limit.

Since the spindle 101 is inserted into the door lock core and the self-positioning torque of the lock core, which is usually commercially available, is between 4 kg-cm and 8 kg-cm, the spindle 101 is the axial guide for the actuation clutch disk 404 during the phase of the screw stroke of the clutch unit 400, i.e. during the phase in which the stationary clutch disk 403 rotates with the handle 200. At this time, the rotation of the handle 200 rotates the stationary clutch plate 403, and the movable clutch plate 404 rotates along the inner-ring spiral surface 401 or the outer-ring spiral surface 402 and moves forward along the spindle 101 serving as an axial guide member (i.e., moves in the direction of the arrow shown in fig. 34). Forward movement of the moving clutch plate 404 will move the spindle 101 forward against the force of the spring 365, thereby disengaging the connection with the final gear 361.

When the helical travel of the clutch unit reaches a limit, i.e. the stop surface 406 of the moving clutch disc 404 engages the stop surface 405 of the stationary clutch disc 403, the moving clutch disc 404 rotates together with the stationary clutch disc 403, so that the spindle 101 drives the lock cylinder to open or close the door lock. In this state, the spindle 101 and the final gear 361 are disengaged so that rotation of the spindle 101 does not cause rotation of the gears in the drive train 360 and/or the motor 130. The rotation limits of the clutch unit 400 in a certain direction of rotation are only schematically shown in fig. 35; alternatively, when the handle 200 and the stationary clutch plate 403 are rotated in the other opposite direction to the rotational limit, another stop surface (not shown) of the movable clutch plate 404 engages another stop surface (not shown) of the stationary clutch plate 403, thereby driving the movable clutch plate 404 and the spindle 101 to rotate in the other rotational direction, such that the spindle 101 drives the lock cylinder to close or open the door lock.

The utility model provides a door lock actuating mechanism, its product compact structure to handle portion user's gripping feels comfortable.

The utility model provides a lock actuating mechanism provides independent gear box part to transmission system in the gear box needn't occupy the space with the crowded parts of bulky such as battery, motor. Therefore, gears in the gear box can be designed to run all around, the movement of the mandrel has no running limit caused by a mechanical structure, the electric control program can be changed to be suitable for door locks of various security levels, and the universality and compatibility of products are enhanced.

The utility model provides a lock actuating mechanism only is used for driving the lock. The user is using according to the utility model discloses a during lock actuating mechanism, need not to change whole lock and handle, but only need change drive division, reduced user's use cost.

The utility model provides a inside door lock actuating mechanism's fixed connection part all arranged base and/or handle in, avoided fixed establishment's such as screw hole, buckle hourglass outward for this actuating mechanism's appearance is comparatively pleasing to the eye.

The utility model provides a protection of inside motor part and circuit board has been realized to lock actuating mechanism's structure, is provided with the separation and reunion unit that declutches lock core and transmission system especially, has avoided damaging this lock actuating mechanism's inner structure and circuit when being used for brutal twist grip. In addition, the clutch unit combines the actions of 'disengaging' and 'rotating mandrel' into a 'rotating' action, so that the use comfort and the easy operation of the door lock driving mechanism are improved.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims

1. A clutch unit (400) for a door lock drive (1),

it is characterized in that the preparation method is characterized in that,

the clutch unit (400) comprises a fixed clutch disc (403) and a movable clutch disc (404),

the stationary clutch plate (403) is engaged with a handle (200) of the door lock drive mechanism (1) and rotates with rotation of the handle (200),

the movable clutch disc (404) is engaged with a mandrel (101) of the door lock driving mechanism (1),

when the stationary clutch plate (403) rotates with the rotation of the handle (200), the movable clutch plate (404) moves the spindle (101) in the axial direction of the door lock drive mechanism (1) so that the spindle is separated from the power train (360),

so that, when the handle (200) is operated to perform an unlocking/locking operation, the clutch unit (400) separates the spindle (101) from a power train (360) of a gear box (300) of the door-lock driving mechanism (1), so that a torque generated by operating the handle (200) is not transmitted to the power train (360).

2. The clutch unit (400) according to claim 1,

the fixed clutch disc (403) comprises a left-handed helicoid (401) and a right-handed helicoid (402), the movable clutch disc (404) comprises helicoids matched with the left-handed helicoid (401) and the right-handed helicoid (402) of the fixed clutch disc (403) respectively,

when the handle (200) is rotated clockwise, the left-handed helical face (401) of the stationary clutch plate engages and slides along the corresponding helical face of the moving clutch plate (404) such that the moving clutch plate (404) pushes the spindle (101) in a direction away from the stationary clutch plate (403) such that the spindle (101) is disengaged from the drive train (360), and/or,

when the handle (200) is rotated counterclockwise, the right-handed helical surface (402) of the stationary clutch plate engages and slides along the corresponding helical surface of the moving clutch plate (404), such that the moving clutch plate (404) pushes the spindle (101) in a direction away from the stationary clutch plate (403), thereby disengaging the spindle (101) from the drive train (360).

3. The clutch unit (400) according to claim 2,

the left-hand (401) and right-hand (402) helical surfaces of the stationary clutch plate (403) are arranged at circumferential positions of different radial lengths from the axis of the clutch unit (400).

4. The clutch unit (400) according to claim 2,

the left-hand (401) and right-hand (402) helical surfaces of the stationary clutch plate (403) are arranged at circumferential positions of the same radial length from the axis of the clutch unit (400).

5. The clutch unit (400) according to claim 2,

the fixed clutch disc (403) comprises two left-hand spiral surfaces (401) and two right-hand spiral surfaces (402).

6. The clutch unit (400) according to claim 2,

the fixed clutch disc (403) has a first stop surface and a second stop surface at the ends of the left-hand spiral surface (401) and the right-hand spiral surface (402), respectively, the movable clutch disc (404) also has a corresponding first matching stop surface and a corresponding second matching stop surface at the ends of the corresponding two spiral surfaces,

when the handle (200) and the stationary clutch plate (403) are rotated clockwise such that the first stop surface of the stationary clutch plate (403) engages the first mating stop surface of the movable clutch plate (404), rotation of the handle (200) drives the movable clutch plate (404) and the spindle (101) to rotate clockwise,

rotation of the handle (200) drives the moving clutch plate (404) and the spindle (101) to rotate counterclockwise when the handle (200) and the stationary clutch plate (403) rotate counterclockwise such that the second stop surface of the stationary clutch plate (403) engages the second mating stop surface of the moving clutch plate (404).

7. A door lock drive mechanism (1),

it is characterized in that the preparation method is characterized in that,

the door lock drive mechanism (1) includes: base (100), handle (200), gearbox (300), clutch unit (400) according to any of claims 1-6,

wherein,

the base (100) comprises: a front end wall (110), a circumferential outer wall (116) and an open rear end, at least one main circuit board (120, 140) and an electric motor (130) being accommodated in a space formed by the front end wall (110) and the circumferential outer wall (116);

the gearbox (300) being capable of transferring the torque generated by the motor (130) to the spindle (101);

the handle (200) is capable of enclosing the gearbox (300) and the clutch unit (400) therein.

8. Door lock drive mechanism (1) according to claim 7,

the gear case (300) is disposed at a rear side of the base (100) and is connected with the base (100) by a fastening means,

the clutch unit (400) is disposed at a rear side of the gear case (300) and is connected with the spindle (101) and the handle (200).

9. Door lock drive mechanism (1) according to claim 7,

the spindle (101) extends through the base (100) and the gear box (300) and extends forward from the front end of the base (100) until reaching a safety lock provided at a door panel of a door (2), so that a torque generated by the motor (130) is transmitted to the safety lock to effect opening and closing of the door lock.

10. A door lock, characterized in that it comprises a door lock drive mechanism (1) according to any one of claims 7-9 and a signal recognition unit for receiving a door lock drive signal.

11. The door lock of claim 10,

the door lock further includes a key hole for inserting a key.