WO2020093941A1

WO2020093941A1 - Mechanical lock unlocking apparatus and mounting method therefor

Info

Publication number: WO2020093941A1
Application number: PCT/CN2019/115012
Authority: WO
Inventors: 马一纯; 陈广鑫; 钟红风
Original assignee: 苏州宝时得电动工具有限公司
Priority date: 2018-11-05
Filing date: 2019-11-01
Publication date: 2020-05-14

Abstract

Provided in the present invention are a mechanical lock unlocking apparatus and a mounting method therefor. The mechanical lock locking apparatus comprises an outer panel and an inner panel; the outer panel is provided with a command input unit used for sending unlocking or locking commands; the inner panel is provided with a motor and a key transmission mechanism; the unlocking apparatus also comprises a power supply unit and a control unit, the control unit respectively being electrically connected to the command input unit and the motor, and being used for controlling the motor to operate on the basis of the unlocking or locking commands sent by the command input unit, and thereby complete the unlocking or locking action. The present invention can reduce the mounting difficulty and cost of door locks, and facilitates operation by ordinary users; the user only needs to replace the outer panel and inner panel of a traditional mechanical door lock to upgrade the mechanical lock into a smart lock.

Description

Unlocking device of mechanical lock and its installation method

This application requires China with an application date of November 05, 2018, application number 201811309051.7 and application date of August 02, 2019, application number 201910713894.1 and application date of August 02, 2019, China with application number 201910713885.2 The priority of patent applications, the entire contents of which are incorporated by reference in this application.

Technical field

The invention relates to lock technology, in particular to a mechanical lock unlocking device and its installation method.

Background technique

Smart door locks generally refer to locks using IC cards, fingerprints, password input and other unlocking methods, which are generally composed of modules such as special lock bodies, special lock cylinders, outer panels, and inner panels. It solves the disadvantage that the traditional door lock must carry the key with you, which is convenient for users. Smart door locks are a combination of mechanical devices and electronic control devices. Generally, the mechanical devices are driven by motor clutches or electromagnetic relays, and the locks are opened by controlling the work of the motor. With the development of electronic technology, especially the development of network communication technology, the unlocking methods of smart door locks are becoming more and more extensive, such as face recognition, mobile phone APP remote control and so on.

In the related art, if you want to upgrade the existing mechanical door lock to an intelligent door lock, you must replace the lock body, lock core, outer panel and inner panel on the existing door body. The replacement cost is high and the installation is difficult, which is not convenient for ordinary users. Operation.

Summary of the invention

The technical problem to be solved by the present invention is to provide a mechanical lock unlocking device, which can cooperate with the lock body, lock core and key of a traditional mechanical door lock to realize the conversion from a mechanical lock to an intelligent door lock, thereby reducing the intelligent door lock The installation difficulty and cost are convenient for ordinary users.

In order to solve the above problems, the technical solution of the present invention is: an unlocking device of a mechanical lock, which is used to cooperate with a lock body, a lock core and a key of the mechanical lock, characterized in that the unlocking device includes: an outer panel, the outer panel It has a command input unit, which is used to send unlock or lock commands; an inner panel, the inner panel has a motor and a key transmission mechanism, the key transmission mechanism is driven by the motor, so as to drive the key in The lock cylinder rotates; wherein the unlocking device further includes a power supply unit and a control unit, the control unit is electrically connected to the instruction input unit and the motor, respectively, and can be sent according to the instruction input unit The unlocking or locking instruction controls the operation of the motor to complete the unlocking or locking action.

In one of the embodiments, the key transmission mechanism includes: a drive assembly having a receiving space for accommodating the key; a transmission member connected to the motor to drive the drive assembly to rotate; the transmission member having A through hole for accommodating the drive assembly; defining the width direction of the key as the first direction and the thickness direction of the key as the second direction; the key is along the first direction and Each of the second directions has an offset space; along at least one of the first direction and the second direction, the key has an offset space in the receiving space.

In one embodiment, along one of the first direction and the second direction, the key has an offset space in the storage space; along the first direction and the first In one of the two directions, the drive assembly has an offset space in the through hole.

In one embodiment, the key has an offset space along the first direction in the receiving space; the drive assembly has an offset space along the second direction in the through hole.

In one embodiment, along the first direction and the second direction, the key has an offset space in the receiving space.

In one of the embodiments, along the first direction and the second direction, there is no relative movement between the driving assembly and the through hole.

In one embodiment, along the second direction, the movable size of the key in the receiving space is less than 0.6 mm.

In one embodiment, the key transmission mechanism includes: a drive assembly including a key compartment for receiving the key, the key compartment having an opening for receiving the key, and a key for The abutting stop surface; the transmission member is connected with the motor to drive the drive assembly to rotate; the transmission member has a through hole, the through hole is used to receive the drive assembly; define the key compartment The upper space for accommodating the key is an accommodating space; the key extends from the opening into the accommodating space, and the opening is located closer to the lock core than the stop surface.

In one of the embodiments, along the extending direction of the key, one end of the key compartment is provided with the opening, and the other end is provided with the stop surface.

In one embodiment, the drive assembly further includes a drive member that cooperates with the key compartment; the drive member is connected to the transmission member, and the drive member drives the drive member under the drive of the transmission member The key compartment rotates.

In one embodiment, the driving member is directly driven by the transmission member.

In one of the embodiments, the driving member is provided with a protrusion, and the transmission member is correspondingly provided with a groove. Through the cooperation of the protrusion and the groove, along the length of the key , The movement of the driving member relative to the transmission member is limited.

In one of the embodiments, a reset device is provided between the driving member and the transmission member, and the reset device provides a force for the key to move toward the lock cylinder.

In one embodiment, the resetting device includes a magnet provided on one of the driving member and the transmission member, and an attraction member provided on the other of the driving member and the transmission member, The attracting member can be attracted by the magnet.

In one of the embodiments, the key transmission mechanism is provided with a one-way limit device, the one-way limit device is configured to: only allow the key compartment relative to all The driving member moves toward and close to the lock cylinder.

In one of the embodiments, the key transmission mechanism includes at least two key compartments, the two key compartments have accommodating spaces of different sizes in the thickness direction of the key, and the at least two key compartments are selected one Cooperate with the drive member.

In one of the embodiments, the key transmission mechanism includes: a drive assembly, the drive assembly includes a key compartment for receiving a key; the key compartment has an opening to receive the key; a transmission member, which is in drive connection with the motor, Thereby driving the drive assembly to rotate; the transmission member has a through hole; the through hole is used to receive the drive assembly; the space for receiving the key on the key compartment is defined as a receiving space, and the key is inserted The direction of the lock cylinder is the insertion direction; the key extends from the opening into the receiving space; and the extension direction of the key is opposite to the insertion direction.

In one of the embodiments, an outer keyhole is also provided on the outer panel, and the outer keyhole is opposite to the lock core.

According to another aspect of the present invention, a method for installing a mechanical lock unlocking device is provided. The unlocking device includes a key transmission mechanism and a motor; the key transmission mechanism includes a drive assembly and a transmission member; the drive assembly includes a A key compartment and a driving part for accommodating a key, the key compartment has an opening for receiving the key, and a stop surface for contacting with the key; the transmission part is drivingly connected with the motor to drive The drive assembly rotates, and the transmission member has a through hole for receiving the drive assembly; wherein, the installation method includes: A1: extending the key from the opening into the key compartment , And make the key abut the stop surface; A2: connect the drive assembly with the transmission member; A3: apply force to the key compartment, the key compartment drives the key relative to all The transmission member moves until the key is inserted into the lock cylinder to a specific position.

In one of the embodiments, the method A2 further includes: fitting the key compartment with the driving member; and connecting the driving member with the transmission member.

In one of the embodiments, the method A2 further includes: connecting the driving member with the transmission member; and fitting the key compartment with the driving member.

According to another aspect of the present invention, a method for installing a mechanical lock unlocking device is provided. The unlocking device includes a key transmission mechanism and a motor; the key transmission mechanism includes a drive assembly and a transmission member; the drive assembly includes a A key compartment and a driving part for accommodating a key, the key compartment has an opening for receiving the key, and a stop surface for contacting with the key; the transmission part is drivingly connected with the motor to drive The drive assembly rotates, and the transmission member has a through hole for receiving the drive assembly; wherein, the installation method includes: B1: inserting the key through the through hole into the lock cylinder, And move the key to a specific position; B2: connect the drive assembly to the transmission member; B3: apply force to the key compartment, the key compartment moves relative to the transmission member, and finally causes the stop The blocking surface is in contact with the key.

The mechanical lock unlocking device and the method for upgrading the intelligent door lock provided by the invention can reduce the installation difficulty and cost of the intelligent door lock and facilitate the operation of ordinary users. The user only needs to replace the outer panel and the inner panel of the traditional mechanical door lock Realize the upgrade of mechanical lock to smart lock.

BRIEF DESCRIPTION

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present invention. For a person of ordinary skill in the art, without paying any creative work, other drawings can be obtained based on these drawings.

1 is a schematic diagram of an unlocking device for a mechanical lock provided by the present invention;

2 (a) -FIG. 2 (c) are schematic structural diagrams of an unlocking device for a mechanical lock provided by an embodiment of the invention;

3 is a schematic diagram of the installation structure of the unlocking device of the mechanical lock shown in FIG. 2;

4 is an exploded view of the installation structure of the unlocking device of the mechanical lock shown in FIG. 2;

FIG. 5 is an assembled perspective view of the key transmission mechanism in the unlocking device shown in FIG. 2, in which the drive assembly is not installed to the transmission part;

6 is an assembled perspective view of the key transmission mechanism shown in FIG. 5, wherein the drive assembly has been installed to the transmission member;

7 is a perspective view of the assembly of the key compartment and the key in the key transmission mechanism shown in FIG. 5;

Fig. 8 is a cross-sectional view of the key transmission mechanism shown in Fig. 5, where the key is housed in the key compartment; in Fig. 8a, a force F parallel to the longitudinal direction of the key acts on the key compartment; in Fig. 8b, parallel to the longitudinal direction of the key The force Q acts on the key;

9 is an assembled perspective view of multiple sets of different key compartments and keys in the key transmission mechanism shown in FIG. 5;

10a is a cross-sectional view of the assembly between the drive member and the key compartment in the key transmission mechanism shown in FIG. 5, at this time, the force M acts on the key compartment; FIG. 10b is an enlarged view of part A in FIG. The force of the main sawtooth part of the drive part was analyzed.

11a is a cross-sectional view of the assembly between the drive member and the key compartment in the key transmission mechanism shown in FIG. 5, at this time, the force N acts on the key; FIG. 11b is an enlarged view of part B in FIG. The force of the main sawtooth part of the driving part was analyzed.

12 is a cross-sectional view of another embodiment of the drive assembly in the key transmission mechanism shown in FIG. 5;

13 is an assembled perspective view of the drive member and the transmission member in the key transmission mechanism shown in FIG. 5;

FIG. 14 is a schematic diagram of an installation method of the key transmission mechanism shown in FIG. 5; wherein FIGS. 14a-14d respectively correspond to the installation methods C1-C4.

15 is a positional relationship diagram between the transmission member, the key and the lock cylinder when the transmission member and the lock cylinder are not completely centered in the key transmission mechanism shown in FIG. 5;

16 is a diagram of two kinds of positional relationship between the driving member and the through hole in the key transmission mechanism shown in FIG. 5 when the key moves to the first position;

17 is a diagram of two kinds of positional relationship between the key and the key compartment in the key transmission mechanism shown in FIG. 5 when the key moves to the first position;

18 is a diagram of two types of positional relationship between the drive member and the through hole in the key transmission mechanism shown in FIG. 5 when the key moves to the second position;

19 is a diagram of two types of positional relationship between the key and the key compartment when the key moves to the second position in the key transmission mechanism shown in FIG. 5;

20 is a perspective view of the reset mechanism in the key transmission mechanism shown in FIG. 5; wherein, in FIG. 20a, the key inside the door is located at a specific position that can drive the lock cylinder to rotate; in FIG. 20b, the key inside the door is ejected To a non-specific position that cannot drive the lock cylinder to rotate.

21 is a perspective view of another embodiment of the reset device involved in the key transmission mechanism shown in FIG. 5; wherein, in FIG. 21a, the reset cover is in the initial state; in FIG. 21b, the reset cover is in the ejected state;

22 is a perspective view of another embodiment of the reset device involved in the key transmission mechanism shown in FIG. 5; wherein, in FIG. 22a, the reset cover is in the initial state; in FIG. 22b, the reset cover is in the ejected state;

23 is a schematic view of the partial structure of the return device used in the unlocking device of the mechanical lock shown in FIG. 1; wherein, in FIG. 23a, the baffle does not move into the gap of the photoelectric generator; in FIG. 23b, the baffle moves In the gap to the photoelectric generator;

FIG. 24 is a perspective view of a door panel and a door frame to which the unlocking device of the mechanical lock shown in FIG. 1 is applied; at this time, the angle of view is from the outside of the door toward the inside of the door;

FIG. 25 is a perspective view of a door panel and a door frame to which the unlocking device of the mechanical lock shown in FIG. 1 is applied, and at this time, the angle of view is from the outside of the door toward the inside of the door;

26 is a perspective view of a door panel and a door frame to which the unlocking device of the mechanical lock shown in FIG. 1 is applied, and at this time, the angle of view is from the inside of the door toward the outside of the door;

FIG. 27 is a flow block diagram of the unlocking device of the mechanical lock shown in FIG. 1 in a scene of opening a door;

FIG. 28 is a flow block diagram of the unlocking device of the mechanical lock shown in FIG. 1 in a scene of door closing;

29 is a flow block diagram of the unlocking device of the mechanical lock shown in FIG. 1 in a locking scenario;

30 is a schematic structural diagram of another embodiment of a key transmission mechanism in the unlocking device shown in FIG. 2; wherein, FIG. 30a is a positional relationship diagram between a transmission member and a driving member, and FIG. 30b is a key and a key Diagram of the positional relationship between warehouses.

detailed description

To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all the embodiments.

Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear "," Left "," Right "," Vertical "," Horizontal "," Top "," Bottom "," Inner "," Outer "," Clockwise "," Counterclockwise "," Axial " , "Radial", "circumferential", etc. indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, only to facilitate the description of the present invention and simplify the description, rather than indicating or implying the device or Elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limiting the invention.

In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , Or integrated; it can be directly connected or indirectly connected through an intermediary, it can be the connection between the two elements or the interaction between the two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

It should be noted that, in the description of the present invention, the terms "first" and "second" are only used to describe different components conveniently, and cannot be understood as indicating or implying a sequence relationship, relative importance, or implicitly indicating the indication The number of technical features. Thus, the features defined with "first" and "second" may include at least one of the features either explicitly or implicitly.

The content of the present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can understand the content of the present invention in more detail.

Referring to FIGS. 1 to 4, this embodiment provides a mechanical lock unlocking device 10, which is used to cooperate with the lock body 110, the lock core 120 and the key 400 of the mechanical lock door panel 100 to realize the unlock operation. The unlocking device 10 includes an outer panel 200 and an inner panel 300. The outer panel 200 is provided with a command input unit 230, and the command input unit 230 is used to send an unlocking command or a locking command; the inner panel 300 is provided with a power supply unit, a key transmission mechanism 310, and a motor 360. When the motor 360 is working, it can drive the key transmission mechanism 310 to drive the key 400 to rotate in the lock cylinder 120, thereby realizing unlocking or locking operation; the unlocking device further includes a control unit 370, which is electrically connected to the command input unit 230 and the motor 360, respectively Connected to receive the unlocking or locking command sent by the command input unit 230, and control the motor 360 to rotate forward or reverse according to the specific command content, so as to drive the key transmission mechanism 310 to drive the key 400 to rotate in the lock core 120 to achieve unlocking Or lock operation.

In this embodiment, the power supply unit is electrically connected to the control unit 370, and is used to supply power to the entire mechanical lock unlocking device 10. Specifically, the power supply unit includes a battery 380 and a battery cover 381, and the power supply unit may be a power supply structure commonly used in the prior art, such as a storage battery or a lithium ion battery. The power supply unit also includes a charging circuit, which can be connected to an external charging device to charge the battery.

The control unit 370 is the control center of the unlocking device of the entire mechanical lock, and it is in communication with the command input unit 230 provided on the outer panel 200, which can be specifically wireless or wired; the control unit 370 is also electrically connected to the motor 360 , The motor 360 can be controlled to rotate according to the specific input instruction content of the instruction input unit 230.

In this embodiment, the instruction input unit 230 is configured as a trigger panel, and the user can send an instruction to the control unit 370 through the trigger instruction input unit 230, and finally cause the key transmission mechanism 310 to drive the key 400 to rotate in the lock cylinder 120 to realize door opening or The action of locking.

In a possible implementation manner, the instruction input unit 230 may include a password keyboard, and the user performs a unlocking operation by inputting a preset password. At this time, the correct password is equivalent to the unlock command. Specifically, after the user enters the unlock password from the password keyboard, the control unit 370 first determines whether the password is correct; after confirming that the password is correct, the control unit 370 sends a control signal to the motor 360 to control the motor 360 to operate; thus the motor 360 drives The key transmission mechanism 310 drives the mechanical key 400 to rotate in the lock cylinder 120 to realize the door opening action.

In a possible implementation manner, the instruction input unit 230 may further include a biometric recognition device, and the biometric recognition device includes one or more of a fingerprint recognition device, a face recognition device, and an iris recognition device. Similar to the password keyboard, when the user approaches the unlocking device 10 of the mechanical lock, the unlocking instruction can be transmitted to the control unit 370 through the biometric recognition device; after the control unit 370 judges the true identity of the user, it sends a control signal to the motor 360 to control The motor 360 runs; thus, the motor 360 drives the key transmission mechanism 310 to drive the mechanical key 400 to rotate in the lock cylinder 120 to realize the door opening action.

In a possible implementation manner, a wireless transmission module may also be integrated in the unlocking device 10, and the wireless transmission module is in communication with the control unit 370. The user may connect to the mechanical unlocking device 10 through wireless means such as Bluetooth or WIFI. Specifically, the corresponding control program can be written in the control unit 370 in advance, and after installing the preset APP on the mobile terminal, the user can realize the wireless connection with the mechanical lock unlocking device 10 through the mobile terminal to realize the mechanical lock The unlocking device 10 controls the door opening or locking. The user sends a corresponding unlocking or locking instruction to the control unit 370 through the mobile terminal. After the control unit 370 judges the user's true identity, it sends a control signal to the motor 360 to control the operation of the motor 360; thus the motor 360 drives the key transmission mechanism 310 to drive The mechanical key 400 rotates in the lock cylinder 120 to realize the door opening action.

In this embodiment, the lock body 110 and the lock core 120 in the door panel 100 can still use the lock body and lock core structure of the traditional mechanical door lock, without replacement, so as to reduce the replacement cost of the intelligent door lock. That is, the present invention only needs to replace the outer panel and the inner panel of the traditional mechanical door lock into the outer panel 200 and the inner panel 300 of the embodiment, and the mechanical lock to the smart lock can be replaced. The mechanical key 400 is also the traditional mechanical door lock. Key to save costs.

When the unlocking device 10 of the mechanical lock in this embodiment fails, the user can remove the unlocking device 10 and replace it with the original inner and outer panels of the mechanical door lock. In this way, it will not affect the normal life of the user. At the same time, the user can send the unlocking device of the disassembled mechanical lock to a predetermined maintenance point by mail or the like to reduce the maintenance cost of the user and the production and sales side.

In this embodiment, as shown in FIGS. 2 to 4, the outer panel 200 includes an outer keyhole 210, an outer handle 220 and a command input unit 230. Wherein, the outer handle 220 is disposed in the middle of the outer panel 200, the outer keyhole 210 is disposed below the outer handle 220, and the outer keyhole 210 is opposite to the lock core 120. The instruction input unit 230 is provided above the outer handle 220.

It is clear to those skilled in the art that, in order to make the outer panel 200 more beautiful, the outer handle 220 may also be eliminated, and the outer handle 220 may be replaced with a groove or the like in the outer panel.

As shown in FIG. 1, in the unlocking device of this embodiment, on the one hand, the user can open the door by inserting the mechanical key 402 into the lock cylinder 120 through the outer keyhole 210; on the other hand, the user can also input through the command input unit 230 Open the door by means of the door open command. Specifically, after the control unit 370 receives the door opening command sent by the command input unit 230, the control unit 370 sends a control signal to the motor 360 to control the operation of the motor 360; thus the motor 360 drives the key transmission mechanism 310 to rotate, driving the key 400 in the lock The core 120 rotates to open the door.

As mentioned above, the lock core 120 of the present invention can be used to insert the key in two directions and open the door. "The key is inserted into the lock cylinder 120 and the door can be opened" must be satisfied-one end of the key inserted into the lock cylinder 120 moves to a specific position of the lock cylinder 120. Only in this specific position, the key can drive the cylinder 120 to rotate. It is defined here that when the key 400 on the inside of the door panel 100 can drive the lock cylinder 120 to rotate, the position at which the end inserted into the lock cylinder 120 is the first specific position; when the key 402 on the outside of the door panel 100 can drive the lock cylinder 120 to rotate The position at which one end of the lock cylinder 120 is inserted is the second specific position; the first specific position and the second specific position are arranged in different areas of the lock core 120 along the length of the key.

Moreover, the lock cylinder 120 is configured to allow only the key on one side of the door panel 100 to be in its corresponding specific position at the same time. This is because, when the key on one side is forced to move toward the corresponding specific position, the key will act on the key on the other side to push out the force; once the applied key moves to a specific position, The key on the other side has been ejected to an unspecified position that cannot drive the lock cylinder to rotate. For example, when the door panel 100 is normally closed, the inside key 400 is located at the first specific position; if the user opens the door by choosing to insert the mechanical key 402 on the outside of the door panel 100, it needs to The key 12 is inserted into the lock cylinder 120 and moved to the second specific position; and during the movement of the key 12 outside the door panel 100 to the second specific position, the key 400 inside the door panel 100 is subjected to the ejection force of the outer key 12 Retreat, retreat from the first specific position.

The outer panel 200 is also fixedly provided with two fastener mounting posts 240, the lock body 110 is correspondingly provided with through holes 130 for the fastener mounting posts 240 to pass through, and the inner panel 300 is correspondingly provided with fastener mounting The fixing holes corresponding to the posts 240 are inserted into the fixing holes of the inner panel 300 through the lock body 110 using fasteners to install the posts 240 to realize the assembly of the inner panel 300 and the outer panel 200. The distance between the two fastener mounting posts 240 is equal to the distance between the two screws on the existing mechanical door lock, that is, the distance between the two fastener mounting posts 240 is 225-245mm, preferably 235mm ; The distance between the outer keyhole 210 and the lower fastener mounting post 240 is the same as that on the existing mechanical door lock, that is, the distance between the outer keyhole 210 and the fastener mounting post 240 below the outer panel 200 It is 80-100 mm, preferably 90 mm.

It is worth noting that before installing the unlocking device 10 of the mechanical lock, the user needs to hold the outer panel 200 and the inner panel 300 by hand before fixing the outer panel 200 and the inner panel 300 together with the fastener mounting post 240, Installation is more difficult.

Therefore, in this embodiment, as shown in FIG. 4, the first adhesive layer and / or the inner panel 201 are provided on the side of the outer panel 200 facing the lock body 110. After the fastener mounting post 240 on the outer panel 200 passes through the lock body 110, the outer panel 200 is pasted on the lock body 110 through the first adhesive layer 201, so that the user does not need to support the outer panel 200 with bare hands, which reduces the difficulty of installation.

In addition, the first adhesive layer can also be configured as a first magnetic layer, and a corresponding magnetic device is provided on the lock body 110, which can also achieve the above-mentioned effects.

As shown in FIGS. 2 to 4, a handle 350 is provided on the inner panel 300 for the user to operate to drive the inclined tongue 213 in the lock body 110. The timing of movement of the oblique tongue 213 will be described below. A key transmission mechanism 310 is also provided inside the inner panel 300. The key transmission mechanism 310 is driven by the motor 360 and can rotate relative to the lock body 110, thereby driving the key 400 to rotate in the lock cylinder 120 to realize the door opening operation.

5 to 6, the key transmission mechanism 310 provided in this embodiment includes: a driving assembly 102 and a transmission member 104. The driving assembly 102 has a receiving space 106 for receiving the key 400; the transmission member 104 is connected to the motor 360 to drive the driving assembly 102 to rotate; the transmission member 104 has a through hole 108 for receiving the driving assembly 102. The key 400 is inserted into the lock cylinder 120 through the through hole 108. Here, the width direction of the key 400 is defined as the first direction X, the thickness direction of the key 400 is defined as the second direction Y, and the length direction of the key 400 is defined as the direction Z. Here, the first direction X, the second direction Y, and the direction Z all refer to the key itself, and there is no one-sided directivity, similar to the horizontal direction and vertical direction often said in life. And "from west to east" and "from east to west" include unilateral directivity. The directions in which the key 400 is inserted into the lock cylinder 120 and the direction in which the key 400 extends into the accommodating space 106 include unidirectional directivity.

In this embodiment, the driving assembly 102 includes a key compartment 101 and a driving member 103 that is in a form-fitting manner with the key compartment 101.

As shown in FIG. 7, the key compartment 101 has a generally U-shaped structure, including a bottom 1010, four side walls 1011, and an opening 1012 for receiving the key 400. Among them, the key 400 extends into the key compartment 101 from the opening 1012 and is received by the key compartment 101. Along the direction in which the key 400 extends into the key compartment 101, one end of the key compartment 101 is an opening 1012, and the other end is a bottom 1010. Here, the space for storing the key 400 in the key compartment 101 is defined as the storage space 106.

In order to reduce the weight of the key compartment 101 and reduce the noise of the key compartment 101 colliding with the transmission member 104 during rotation, the key compartment 101 is also provided with a plurality of weight-reducing holes 1060 symmetrically.

As shown in FIG. 8, when the key 400 is housed in the key compartment 101, its tail end abuts on the bottom 1010 of the key compartment 101. Here, a portion of the bottom 1010 for contact with the key 400 is defined as a stop surface 1014. In this embodiment, when the drive assembly 102 containing the key 400 is connected to the transmission member 104, the opening 1012 is located closer to the lock core 120 than the stop surface 1014.

Thus, when the key compartment 101 receives a force F parallel to the longitudinal direction of the key 400, as shown in FIG. 8a, the stop surface 1014 will cause the key 400 to move together with the key compartment 101; When the force Q in the longitudinal direction is as shown in FIG. 8b, the key 400 will abut the stop surface 1014, and the key compartment 101 and the key 400 move together.

In one embodiment, in order to adapt to keys 400 with different thicknesses, the key transmission mechanism 310 is configured with multiple key compartments 101. As shown in FIG. 9, the key transmission mechanism 310 is provided with three types of key compartments 101, namely 101a-101c. The storage spaces 106 on each key compartment 101 have different sizes in the thickness Y of the keys, and are used to accommodate different thicknesses. Size keys 400a-400c. In use, the matching key compartment 101 is selected according to the key 400 of different specifications, and the selected key compartment 101 and the driving member 103 are form-fitted. Here, the shape fit refers to that after the driving member 103 is driven and rotated by the transmission member 104, it can transmit the rotation to the key compartment 101, and both remain relatively still in the direction of rotation.

In this embodiment, as shown in FIG. 6, the outer surface of the key compartment 101 and the inner surface of the driver 103 are fitted to each other, and the gap between the outer surface of the key compartment 101 and the inner surface of the driver 103 is very small. It can be considered that there is no relative movement between the two in the direction of rotation when the driving member 103 drives the key compartment 101 to rotate.

Of course, in other embodiments, other torsion transmitting parts may be provided on the key compartment 101, such as a torsion transmitting protrusion on the outer surface of the key compartment 101, and a torsion transmitting groove corresponding to the inner surface of the driving member 103. The torque-transmitting protrusion and the torque-transmitting groove cooperate with each other to transmit the motion from the driving member 103 to the key compartment 101, and to keep the driving member 103 and the key compartment 101 relatively stationary in the rotation direction.

When the mechanical key 400 is located at the first specific position, it can drive the lock cylinder 120 to rotate. The position of the end of the lock cylinder 120 inserted in the longitudinal direction Z of the key 400 is relatively fixed, and the length of the key 400 of different specifications does not Not only, therefore, the position of the end of the mechanical key 400 relative to the lock cylinder in the length direction Z is not fixed. Therefore, in the longitudinal direction Z of the key 400, the key compartment 101 can slide along the driving member 103.

Moreover, in the longitudinal direction Z of the key 400, the key compartment 101 is configured to move only in the direction closer to the lock cylinder 120 relative to the driving member 103. That is to say, when the key 400 is pushed back by the ejection force of the key 12 outside the door, the key compartment 101 will drive the driving member 103 back together, and there is no relative movement between the key compartment 101 and the driving member 103 at this time.

Referring to FIGS. 10 to 11, the inner surface of the driving member 103 is provided with a main serration portion 130 including a plurality of serrations, and a single serration includes a main serration surface 1301 parallel to the second direction Y and a side inclined to the main serration surface 1301 Sawtooth surface 1302; the main sawtooth portion 130 is made of elastic material and can deform when subjected to force. Correspondingly, the outer surface of the key compartment 101 is provided with a secondary sawtooth portion that is in shape fit with the main sawtooth portion 130.

As shown in FIG. 10 a, when a force M parallel to the longitudinal direction Z of the key 400 is applied to the key compartment 101, the force from the key compartment 101 received by the driver 103 acts on the side sawtooth surface 1302. Referring to FIG 10b, which defines the force on one side of 1302 serrated surface is M '; a force M' force analysis at this time would be 1302 side serrated surface Z parallel to the longitudinal direction of the key 400 of the component M _z 'And the component force M _y ' parallel to the second direction Y; the component force M _y 'deforms the main sawtooth 130 outward, giving room for the key compartment 101 to slide, and the component force M _z ' causes the key compartment 101 to Move in the direction close to the lock cylinder 120.

When the force N parallel to the longitudinal direction Z of the key 400 acts on the key 400, as shown in FIG. 11a, the force from the key compartment 101 received by the driving member 103 acts on the main sawtooth surface 1301; referring to FIG. 11b, define which The force on a main sawtooth surface 1301 is N '. Analysis of the force N' shows that the main sawtooth surface 1301 is only subjected to a force N 'parallel to the longitudinal direction Z of the key 400; this force does not cause The deformation of the main sawtooth portion 130 only causes the driving member 103 to move backward together with the key compartment 101. Thus, when the key 400 receives the ejection force of the key 402 outside the door and moves backward, the key compartment 101 will drive the driving member 103 back together.

Of course, in other embodiments, the key compartment 101 may be disassembled into: at least an assembly including the containing portion 1013 and the stop portion 1015. As shown in FIG. 12, the housing portion 1013 has an opening 1012 for receiving the key 400, the stop portion 1015 has a stop surface 1014 for contacting the key 400, and the housing space 106 is provided in the housing portion 1013. The key 400 extends into the receiving space 106 from the opening 1012, and its rear end abuts the stop surface 1014. In this embodiment, the accommodating portion 1013 and the driving member 103 have an interference fit, and are in contact with the stopper 1015; a unidirectional limiting device is provided between the stopping portion 1015 and the driving member 103. In this way, when a force parallel to the longitudinal direction of the key 400 is applied to the stop portion 1015, the stop portion 1015 will drive the key 400 and the accommodating portion 1013 to move the two relative to the driving member 103, and the key 400 is inserted into the lock cylinder 120 in. When a force parallel to the longitudinal direction of the key 400 is applied to the key 400, the key 400 abuts the stop surface 1014, pushing the stop portion 1015 to drive the driving member 103 to move backward together; and because the driving member 103 and the receiving portion 1013 During the interference fit, the receiving portion 1013 will also move with the driving member 103, so the receiving portion 1013 is always in a state of contact with the stopper 1015. When the transmission member 104 drives the driving member 103 to rotate, the driving member 103 will drive the accommodating portion 1013 and the stop portion 1015 to move together.

In a possible implementation manner, only the driving member and the stop portion may be provided. The driving member includes a storage part for storing a key, and the storage part is provided with an opening for receiving a key; the stop part has a stop surface which is in contact with the key. A one-way limiting device is provided between the driving part and the stopper. In short, it is a structure in which the accommodating portion in FIG. 12 is integrated with the driving element. This can also be achieved: when a force parallel to the longitudinal direction of the key is applied to the stop, the stop moves the key and inserts into the lock cylinder; when the key is pushed by the key outside the door, the key will push the stop The part moves backward. At this time, due to the setting of the one-way limit device, the driving part will move with the stop part.

On the other hand, the accommodating part 1013 and the stopper 1015 in this embodiment are integrally formed, and the key compartment 101 is formed together. “In one piece” should be understood to mean in particular at least materially connected, for example by welding processes, bonding processes, injection processes and / or other processes that the technician considers meaningful, and / or is advantageously understood to be in one block Forming, for example, by casting from a casting and / or by a single-component or multi-component injection molding method and preferably manufactured from a single blank.

As shown in FIGS. 5 and 13, the transmission member 104 is rotatably supported on the transmission box 105, and its rotation axis is parallel to the longitudinal direction Z of the key 400. The transmission member 104 includes a gear portion 107 that meshes with a gear on the motor shaft. The gear portion 107 is provided with a through hole 108 for accommodating the drive assembly 102.

The transmission member 104 is connected to the driving member 103 to drive the driving member 103 to rotate; and, in the length direction of the key 400, the movement of the driving member 103 relative to the transmission member 104 is limited. Specifically, as shown in FIG. 13, the outer surface of the driving member 103 is provided with a pair of protrusions 1035; correspondingly, the gear portion 107 is provided with a groove 1075 that cooperates with the protrusion 1035 of the driving member 103. In this way, when the motor 360 is controlled to rotate, the gear portion 107 can drive the driving member 103 to rotate; when a force parallel to the longitudinal direction Z of the key 400 and close to the lock cylinder 120 is applied to the driving member 103, the driving member 103 can only move To the position where the protrusion 1035 and the groove 1075 cooperate.

In this embodiment, the driving member 103 directly cooperates with the transmission member 104, and there is no intermediate element between the two. That is, the driving member 103 is directly driven by the transmission member 104. In this embodiment, the transmission case 105 is fixedly disposed on the rear panel 300, the transmission member 104 is rotatably supported by the transmission case 105, and the key 400 is inserted into the lock cylinder 120 through the through hole 108 provided in the gear portion 107.

14a to 14d, a method of installing the key transmission mechanism 310 can be described as:

C1: First insert the key 400 into the lock cylinder 120 through the through hole 108, and make the key 400 move to the first specific position;

C2: Connect the driving member 103 with the transmission member 104; specifically, slide the protrusion 1035 of the driving member 103 into the groove 1075 along the transmission member 104, and make the protrusion 1035 face the bottom surface of the transmission member 104 and the groove 1075 The bottom of the abutment;

C3: Set the key compartment 101 into the driving part 103;

C4: A force parallel to the insertion direction Z of the key 400 is applied to the key compartment 101, the key compartment 101 is driven to slide along the driving member 103, and finally the stop surface 1014 of the key compartment 101 is brought into contact with the key 400;

In a possible implementation manner, the installation method of the key transmission mechanism 310 can also be described as:

D2: Set the key compartment 101 into the driving part 103;

D3: connect the driving member 103 with the transmission member 104; specifically, slide the protrusion 1035 of the driving member 103 into the groove 1075 along the transmission member 104, and make the protrusion 1035 face the bottom surface of the transmission member 104 and the groove 1075 The bottom of the abutment;

D4: A force parallel to the insertion direction Z of the key 400 is applied to the key compartment 101, the key compartment 101 is driven to slide along the driving member 103, and finally the stop surface 1014 of the key compartment 101 abuts the key 400.

E1: extend the key 400 into the key compartment 101 through the opening 1012, and make the key 400 abut the stop surface 1014 of the key compartment 101;

E2: connect the driving member 103 with the transmission member 104; specifically, slide the protrusion 1035 of the driving member 103 into the groove 1075 along the transmission member 104, and make the protrusion 1035 face the bottom surface of the transmission member 104 and the groove 1075 The bottom of the abutment;

E3: Set the key compartment 101 into the driving part 103;

E4: A force parallel to the insertion direction Z of the key 400 is applied to the key compartment 101, the key compartment 101 is driven to slide along the driving member 103, and finally the key 400 is inserted into the lock cylinder 120 and moved to the first specific position.

F2: Set the key compartment 101 into the driving part 103;

F3: connect the driving member 103 with the transmission member 104; specifically, slide the protrusion 1035 of the driving member 103 into the groove 1075 along the transmission member 104, and make the protrusion 1035 face the bottom surface of the transmission member 104 and the groove 1075 The bottom of the abutment;

F4: A force parallel to the insertion direction Z of the key 400 is applied to the key compartment 101, the key compartment 101 is driven to slide along the driving member 103, and finally the key 400 is inserted into the lock cylinder 120.

It should be noted that a reset device is further provided between the transmission member 104 and the drive assembly 102, and the reset device provides a force to maintain the protrusion 1035 of the drive member 103 and the groove 1075 of the gear portion 107 abutting each other.

In this embodiment, the receiving space 106 is configured to allow the key 400 to move in the first direction X inside thereof; the through hole 108 is configured to allow the driving member 103 to move in the second direction Y inside it; thus, the key 400 can move in the first direction X and the second direction Y in the through hole 108. That is, the key 400 has an offset space in the through hole 108 along the first direction X and the second direction Y. In this way, when the transmission member 104 drives the key 400 to rotate, the key 400 has a space that can slide in the first direction X and the second direction Y, and the key 400 will not be stuck due to the misalignment of the transmission member 104 and the lock core 120 Case.

In order to more clearly explain the stuck situation of the key 400, FIG. 15 schematically illustrates a schematic diagram of the position between the transmission member 104, the key 400 and the lock cylinder 120. As shown in FIG. 15, one end of the key 400 is inserted into the lock core 120 and the other end is driven by the transmission member 104; due to installation errors, the center line P of the transmission member 104 and the center line V of the lock core 120 cannot be guaranteed to be just centered; Then, in the process that the transmission member 104 drives the key 400 to rotate, since one end of the key 400 has been fixed by the lock core 120, the other end of the key 400 will pin the transmission member 104, preventing it from rotating, and thus a stuck phenomenon occurs .

According to the technical solution of the present invention, the key 400 has a space to move along the first direction X and the second direction Y relative to the transmission member 104. The key 400 can adjust its position relative to the transmission member 104 so that the phenomenon of jamming does not occur.

The driving member 103 can move in the second direction Y in the through hole 108 and has two limit positions; the key 400 can move in the first direction X in the receiving space 106 and also has two limit positions. In view of the fact that the key 400 is rotatable, there are countless spatial positions between it and the transmission box 105. The following only lists the key 400 in two rotation positions, the driving member 103 and the through hole 108, the key 400 and the receiving space 106 Diagram of the location relationship between.

16 is a diagram showing two types of positional relationship between the driving member 103 and the through hole 108 when the key 400 is rotated to the first position where the width direction X is perpendicular to the long side L of the transmission case 105. In Fig. 16a, along the second direction Y, the driving member 103 moves to the uppermost position of the through hole 108; in Fig. 16b, along the second direction Y, the driving member 103 moves to the lowermost position of the through hole 108.

FIG. 17 is a diagram showing two types of positional relationship between the key 400 and the key compartment 101 when the key 400 is rotated to the first position where the width direction X is perpendicular to the long side L of the transmission case 105. In FIG. 17a, in the first direction X, the key 400 moves to the leftmost end of the key compartment 101; in FIG. 17b, in the first direction X, the key 400 moves to the rightmost end of the key compartment 101;

18 is a diagram showing two kinds of positional relationship between the driving member 103 and the through hole 108 when the key 400 is rotated to the second position where the width direction X is parallel to the long side L of the transmission case 105. In FIG. 18a, along the second direction Y, the driving member 103 moves to the rightmost position of the through hole 108; in FIG. 18b, along the second direction Y, the driving member 103 moves to the leftmost position of the through hole 108.

FIG. 19 is a diagram showing two types of positional relationship between the key 400 and the key compartment 101 when the key 400 is rotated to the second position where the width direction X is parallel to the long side L of the transmission case 105. In FIG. 19a, in the first direction X, the key 400 moves to the lowermost end of the key compartment 101; in FIG. 19b, in the first direction X, the key 400 moves to the uppermost end of the key compartment 101.

In a possible embodiment, the key 400 may also be configured to have an offset space in the receiving space 106 along the second direction Y; the driving member 103 may be configured to have a through hole 108 along the first direction X One offset space. In this way, along the first direction X and the second direction Y, the key 400 has an offset space in the through hole 108; the key 400 can self-adjust its position relative to the transmission member 104, so that the stuck phenomenon does not occur.

It should be noted that when the key 400 has an offset space in the second direction Y, the gap p between the key 400 and the boundary of the storage space 106 must not be too large in the second direction Y.

Due to different usage habits, when a user uses an intelligent unlocking device, there is a situation where the first user chooses to open the door by using a mechanical key 402 on the outside of the door; the second user chooses: through the key transmission mechanism 310 drives the key 400 on the inside of the door to open the door by rotating in the lock cylinder 120. At this time, there will be a problem: as the mechanical key 402 outside the door is inserted into the lock cylinder 120, the key 400 inside the door will be pushed back by the ejection force of the key 12 outside the door; as the key 12 outside the door moves to the second specific position, The key 400 on the inside of the door will retreat from the first specific position that can effectively drive the lock cylinder 120 to rotate; at this time, even if the second user successfully drives the key transmission mechanism 310 to rotate through the command input unit 230, the key 400 in the door still cannot be driven When the lock cylinder 120 rotates, the door cannot be opened.

The reset device mentioned above just provides the force for the key 400 to move toward the lock cylinder 120, so that after the first user successfully opens the door and removes the key 402 outside the door, the driving member 103 can be relative to the gear part 107 moves toward the lock cylinder 120 to a position where the protrusion 1035 abuts the bottom of the groove 1075, and finally enables the key 400 to be effectively inserted into the lock cylinder 120.

In this embodiment, as shown in FIG. 13, the reset device includes: a magnet 121 provided on the surface of the protrusion 1035 facing the transmission member 104, and an attraction member 123 provided on the bottom of the groove 1075. The attraction member 123 can be magnetized 121 Attract; of course, the magnet 121 may also be disposed in the groove 1075 of the gear portion 107, and the attracting member 123 may be disposed on the protrusion 1035 of the driving member 103.

With reference to FIG. 20a, under the action of the magnetic attraction force between the magnet 121 and the attracting member 123, the protrusion 1035 is held in the groove 1075 of the gear portion 107; thereby, the key 400 is held at the first specific position and can Effectively drives the lock core 120 to rotate.

When the door is opened by inserting the mechanical key 402 on the outside of the door, the key 402 will move to the second specific position. At this time, the mechanical key 400 on the inside of the door is ejected to a position where the lock cylinder 120 cannot be effectively rotated. The mechanical key 400 will drive the drive assembly 102 back together to an unspecified position, as shown in FIG. 20b.

When the key 402 outside the door is pulled out, the ejection force received by the key 400 inside the door disappears, and the suction force between the magnet 121 and the attracting member 123 causes the drive assembly 102 to slide toward the lock cylinder 120; The member 103 is moved again to the position where the protrusion 1035 abuts the groove 1075, and drives the key 400 to be effectively inserted into the lock cylinder 120 to realize the automatic reset of the drive assembly 102, as shown in FIG. 20a. Further, the groove 1075 is configured as a guide groove for guiding the drive assembly 102 to move backward. The length of the guide groove is greater than the maximum distance that the drive assembly 102 moves after being ejected by the external key 12.

In this embodiment, the urging force for driving the driving assembly 102 to return to the key 400 to be effectively inserted into the lock cylinder 120 is provided by the attractive force between the magnet 121 and the attracting member 123, and the attracting member 123 is provided on the gear portion 107; and the magnet 121 The magnitude of the gravitational force with the attracting element 123 is positively related to the distance; in the length direction Z of the key 400, the key compartment 101 can move along the driving element 103 toward the lock cylinder 120, or it can move together with the driving element 103 , Moving in a direction away from the lock cylinder 120; that is, relative to the driving member 103, the position of the key compartment 101 relative to the gear portion 107 is less fixed. Therefore, it is more suitable to arrange the magnet 121 on the driving member 103 than to arrange the magnet 121 on the key compartment 101.

In a possible embodiment, the attracting member 123 may be configured as a metal member or a magnet.

Of course, the form of the reset device is not limited to the magnet form mentioned in this embodiment. For example, an elastic force may be selected to provide a force for the driving assembly 102 to move toward the lock cylinder 120. Specifically, as shown in FIG. 21, the reset device includes: a reset box 109 fixedly disposed on the rear panel 300, and the reset box 109 are movable The reset cover 111 and the elastic member 113 are connected. The reset box 109 is fixedly provided with a limit part 1091 that limits the movement of the reset cover 111; the reset cover 111 can move relative to the reset box 109 along the length direction Z of the key 400; one end of the elastic member 113 is connected to the reset box 109, and One end is connected to the reset cover 111.

When the reset cover 111 is in the initial state, as shown in FIG. 21a, the elastic member 113 is in a slightly stretched state; under the action of the elastic member 113, the reset cover 111 abuts the driving member 103, so that the key 400 is effectively inserted into the lock core 120 In the meantime; the movement of the reset cover 111 toward the lock core 120 is restricted by the limit portion 1091;

When the key 402 is inserted outside the door, the outside key 402 exerts an ejection force on the key 400 inside the door. The key 400 drives the driving member 103 to move backward together. The driving member 103 abuts the reset cover 111, and drives the reset cover 111 along the key 400. The lengthwise direction of the button moves away from the lock core 120. At this time, the reset cover 111 is in the ejected state, and the elastic member 113 is further stretched, as shown in FIG. 21b.

When the key 402 outside the door is pulled out and the ejection force received by the key 400 inside the door disappears, under the action of the elastic member 113, the reset cover 111 will move toward the lock core 120 and return to the limit portion 1091 In the initial state of abutment, the cover abuts the driving member 103 at the same time, and the driving member 103 drives the key 400 to be inserted into the lock cylinder 120 again.

In the foregoing embodiment, one end of the elastic member 113 acts on the reset box 109 and one end acts on the reset cover 111; considering that the reset box 109 is fixedly connected to the transmission box 105, the reset cover 111 always abuts the driving member 103 and the elastic member 113 The acting objects can also be described as the transmission case 105 and the driving member 103.

Fig. 22 schematically illustrates another arrangement of the elastic member 113 '.

As shown in FIG. 22, the reset device includes: a reset box 109 fixedly provided on the rear panel 300, a reset cover 111 movably connected to the reset box 109, and an elastic member 113 '. The reset box 109 is fixedly provided with a limit part 1091 for restricting the movement of the reset cover 111; the reset cover 111 can move relative to the reset box 109 along the length direction Z of the key 400; one end of the elastic member 113 'is connected to the reset box 109 , The other end is connected to the reset cover 111.

When the reset cover 111 is in the initial state, as shown in FIG. 22a, the elastic member 113 'is in a micro-compressed state; under the action of the elastic member 113', the reset cover 111 abuts the driving member 103, so that the key 400 is effectively inserted into the lock cylinder 120; at the same time, the movement of the reset cover toward the lock core 120 is restricted by the limiting portion 1091;

When the key 402 is inserted outside the door, the outside key 402 exerts an ejection force on the key 400 inside the door. The key 400 drives the driving member 103 to move backward together. The driving member 103 abuts the reset cover 111, and drives the reset cover 111 along the key 400. The length of the movement toward the direction away from the lock core 120, the reset cover 111 is in the ejected state, the elastic member 113 'is further compressed, as shown in Figure 22b.

When the key 402 outside the door is pulled out and the ejection force received by the key 400 inside the door disappears, under the action of the elastic member 113 ', the reset cover 111 will move toward the lock core 120 and return to the limit part At the initial state of 1091 abutment, at the same time, the driving member 103 drives the key 400 to be reinserted into the lock cylinder 120, as shown in FIG. 22a.

Another possible situation is: the first user chooses to open the door by the key transmission mechanism 310 driving the key 400 on the inside of the door to rotate in the lock cylinder 120; the second user chooses to use the mechanical key 402 on the outside of the door The door will be opened in the same way; at this time, there will be a problem: after the first user opens the door, the lock core 120 has rotated to an unnatural position. At this time, the key 402 outside the door cannot be effectively inserted into the lock core 120, not to mention ejecting the key 400 inside the door, and driving the lock core 120 to rotate to open the door. Here, the lock core 120 is in the natural position means that the key 402 outside the door can be inserted into the lock core 120 and moved to the second specific position, so that the key 400 on the inside of the door can be ejected, and the lock core 120 can be rotated to rotate the door turn on. In this embodiment, when the lock core 120 is in a natural position and the key 402 on the outside of the door can be effectively inserted, the width direction of the key 402 is the horizontal direction in the traditional sense, that is, perpendicular to the long side L of the transmission case 105 direction.

For this reason, the unlocking device of the mechanical lock of the present invention is also provided with a return device. The return device is used to control the rotation of the motor 360 when the lock cylinder 120 is in the unnatural position; then the key transmission mechanism 310 is driven to rotate the key 400, and finally the lock cylinder 120 is rotated to the natural position.

In this embodiment, as shown in FIG. 23, the return device includes a pair of baffles 115 arranged on the circumference of the gear portion 107 at 180 ° intervals, and a photoelectric generator 114 fixedly arranged on the control board 112, wherein the control board 112 It is fixedly arranged in the transmission case 105. When the motor 360 drives the gear 107 to rotate, the baffle 115 periodically passes through the gap of the photoelectric generator 114. When the baffle 115 rotates into the gap of the photoelectric generator 114, the key 400 drives the lock core 120 to rotate to the above-mentioned natural position.

It should be noted that the control board 112 is a component of the control unit 370.

The photoelectric generator 114 is electrically connected to the control board 112, and converts the optical signal into an electrical signal and transmits it to the control unit 370.

When the baffle 115 does not rotate into the gap of the photoelectric generator 114, as shown in FIG. 23a, the photoelectric generator 114 transmits the first electrical signal to the control unit, and the control unit receives the first electrical signal to control the motor 360 to continue to rotate .

When the baffle 115 rotates into the gap of the photoelectric generator 114, as shown in FIG. 23b, the photoelectric signal between the photoelectric generators 114 is blocked, and the photoelectric generator 114 transmits the second electric signal to the control unit 370, the control unit 370 After receiving the second electrical signal, the motor 360 is controlled to stop working. At this time, the key transmission mechanism 310 drives the key 400 to rotate to the natural position.

The trigger condition for the return device to start working is that the control unit 370 determines that the lock core 120 has rotated to an unlocked or locked position that cannot continue to rotate.

In a possible implementation manner, the control unit 370 is configured to determine whether the lock core 120 is in the unlocked position or the locked position according to the current value flowing through the motor 360. Specifically, when the lock core 120 cannot continue to rotate, the motor 360 has a stall phenomenon. At this time, the current value flowing through the motor 360 will be much greater than the current value of the motor 360 during normal operation. Therefore, the control unit 370 can determine that the lock cylinder 120 is in the unlocked position or the locked position.

The general working principle of the return device is:

When the control unit 370 determines that the lock core 120 has been rotated to an unlocked or locked position that cannot continue to rotate, it issues an instruction to the motor 360;

After receiving the instruction, the motor 360 starts to rotate in the reverse direction;

The key transmission mechanism 310 is driven by the motor 360 to rotate reversely, and the baffle 115 rotates together with the gear portion 107;

When the baffle 115 rotates into the gap of the photo sensor 114 for the first time, the photo sensor 114 sends a second electrical signal to the control unit 370;

The control unit 370 receives the second electrical signal and controls the motor 360 to stop working.

It is worth noting that the photo sensor 114 can send a signal to the control unit 370 based on its positional relationship with the baffle 115 only after the return device starts to work. That is to say, the photoelectric generator 114 can work only after the lock core 120 rotates to the unlocked or locked position that cannot continue to rotate. When the key transmission mechanism 310 drives the key 400 to rotate in the lock cylinder 120 to achieve the purpose of unlocking or locking, the photoelectric sensor 114 will not work.

In the following, several working scenarios of the unlocking device 10 of the mechanical lock of the present invention and the working timing of the return device will be described in detail with reference to FIGS. 24 to 29.

Scene 1: Open the door

The unlocking operation we often say refers to: all the tongues 21 provided on the door panel 100 are withdrawn from the tongue groove 25 in the door frame 23, the restriction of the door panel 100 is released, and the door can be opened. Specifically in this embodiment, as shown in FIGS. 24-26, the door plate 100 is provided with a lock tongue 21, and the door frame 23 is correspondingly provided with a lock tongue groove 25 that cooperates with the lock tongue 21. When the tongue 21 fully extends into the tongue groove 25, the door panel 100 is locked; when the tongue 21 completely withdraws from the tongue groove 25 in a retracted state that does not protrude from the door panel 100, the door panel 100 can be opened, As shown in Figure 25.

In this embodiment, as shown in FIG. 24, the lock tongue 21 includes one inclined tongue 211 and three square tongues 213; wherein, the inclined tongue 211 is preloaded on the door panel 100 by spring, and can be driven by the lock core 120 After the latch groove 25 is withdrawn, the oblique tongue 211 can be squeezed back after being subjected to an external force, such as a door closing operation. The inner and outer sides of the door panel 100 are also provided with locking buttons 31 for user operation.

Referring to FIG. 27, the flow of the door opening operation can be described as:

The user inputs relevant information, such as fingerprints, passwords, etc., on the instruction input unit 230 of the front panel 200;

The instruction input unit 230 sends an unlocking instruction according to the information input by the user;

The control unit 370 accepts the unlocking instruction sent by the instruction input unit 230, and issues a work instruction to the motor 360;

The motor 360 rotates in the first direction after receiving the work instruction, and drives the key transmission mechanism 310 to drive the key 400 to rotate in the lock cylinder 120;

When the key 400 and the lock core 120 are rotated to the unlocking position that cannot continue to rotate, the tongue 21 is completely withdrawn from the tongue groove 25, and the door is opened;

The control unit 370 judges that the lock core 120 rotates to the unlocking position, and controls the return device to work;

The motor 360 is driven to rotate in the reverse direction, so that the key transmission mechanism 310 drives the key 400 to reversely rotate in the lock cylinder 120;

The key 400 and the lock core 120 rotate to a natural position;

The return device stops working, the oblique tongue 211 pops out under the action of the spring force, and the remaining square tongues 213 still remain retracted.

Scene 2: Close the door

The door closing operation occurs after the door opening operation; since the door opening operation has been discussed above, this section only discusses the operation after the door panel 100 is opened.

As shown in FIG. 28, when the user closes the door, the slanting tongue 211 will be temporarily retracted by the squeezing force of the door frame 23; when the door is completely closed, the slanting tongue 211 is re-extended to the tongue groove in the door frame 23 by the spring 25.

In this part of the door closing operation, the other square tongues 213 except for the oblique tongue 211 will always remain in the retracted state.

Scene 3: Lock

The locking operation occurs after the door is closed. This part will involve multiple actions of the return device. So this part will be described from the door opening operation.

Specifically, referring to FIG. 29, the flow of the lock operation can be described as:

The motor 360 is driven to rotate in the reverse direction, so that the key transmission mechanism 310 drives the key 400 to rotate in the reverse direction;

The key 400 and the lock core 120 rotate to a natural position;

The return device stops working, the oblique tongue 211 pops up, and the remaining square tongue 213 remains in the retracted state;

When the door is closed, the oblique tongue 211 will temporarily retract due to the squeezing force of the door frame 23;

When the door is completely closed, the inclined tongue 211 re-extends into the tongue groove 25 in the door frame 23;

The lock button 31 is pressed, and the control unit 370 controls the motor 360 to rotate in a second direction opposite to the first direction, thereby driving the key transmission mechanism 310 to drive the key 400 to rotate in the lock cylinder 120;

When the lock core 120 rotates to a locked position where it cannot continue to rotate, all square tongues 213 except the oblique tongue 211 extend into the lock tongue groove 25 in the door frame 23;

The control unit 370 judges that the lock core 120 rotates to the locked position, and controls the return device to work;

The key 400 and the lock cylinder 120 rotate to a natural position.

This design, which judges that the lock core 120 rotates to the unlocked position or the locked position, thereby triggering the action of the return device, has its drawbacks. This is because when the lock core 120 moves to an unlocked or locked position that cannot continue to rotate, the key 400 has a tendency to rotate because it is driven by the key transmission mechanism 310; on the other hand, due to the structural design of the unlocking device itself Therefore, the key 400 cannot rotate; therefore, the torque acting on the key 400 will cause some damage to the key 400 itself.

For this reason, the unlocking device of the mechanical lock of the present invention is also provided with an autonomous learning module. The self-learning module is configured to: when the key 400 drives the lock core 120 to rotate to the moment when the lock position or the lock position is about to be reached, control the movement of the tongue 21 to realize the operation that the door is opened or the door is locked; A few seconds after being opened or locked, the return device is controlled to work.

In a possible implementation, the autonomous learning module may record the number of turns of the key 400 and the lock cylinder 120 when the key transmission mechanism 310 drives the key 400 to the unlocked position during unlocking; or, the autonomous learning module may record During the locking process, when the key transmission mechanism 310 drives the key 400 to the locked position, the number of turns of the key 400 and the lock cylinder 120 rotates. Therefore, the autonomous learning module can control the movement of the lock tongue 21 when the lock core 120 is about to reach the unlocking position or the locking position to achieve the purpose of unlocking or locking.

It should be noted that if the user opens the door by using a mechanical key 402 on the outside of the door, the lock core 120 will not return to its natural position depending on the function of the return device. This is because, when the user needs to remove the key 402 after completing the door opening operation, the user must manually rotate the key 402 to the natural position before the key 402 can be removed. Ends here

As shown in FIGS. 3 and 4, in a possible implementation manner, an anti-lock button 340 is further provided on the inner panel 300. The anti-lock button 340 is connected to the anti-lock tongue 215 provided in the lock body 110 to control the anti-lock tongue 215 exercise. When the user rotates the anti-locking button 340, the anti-locking tongue 215 can be controlled to withdraw or extend into the tongue groove 25 to achieve the corresponding purpose. It is worth noting that the anti-latching tongue 215 is controlled exclusively by the anti-latching button 340. When the user drives the key 400 to rotate in the lock cylinder 120 through the key transmission mechanism 310, and the oblique tongue 211 and the square tongue 213 are all withdrawn from the tongue groove 25, as long as the counter bolt 215 also extends into the tongue groove 25, The door panel 100 still cannot be opened. That is to say, in the case where the anti-latching tongue 215 protrudes into the tongue groove 25, the user located outside the door panel 100 cannot open the door anyway.

Fig. 30 shows a positional relationship between the driving member 103 'and the gear portion 107', and the key 400 'and the key compartment 101' in the key transmission mechanism 310 'according to another embodiment of the present invention. In this embodiment, as shown in FIG. 30a, in the second direction Y and the first direction X, the driving member 103 'and the gear portion 107' are closely fitted, and there is no relative movement therebetween. As shown in FIG. 30b, the key 400 'can move in the second direction Y and the first direction X in the key compartment 101'. For this reason, in the second direction Y and the first direction X, there is a gap between the key 400 'and the side wall of the key compartment 101'.

In order to ensure that the key 400 'can drive the lock cylinder 120 to a natural position under the action of the return device, in the second direction Y, the gap p between the key 400' and the side wall of the receiving space 106 should not be too large. Control within 0.3mm. That is, in the second direction Y, the movable size of the key 400 'is 0.6 mm.

The embodiments of the present disclosure have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles, practical applications, or technical improvements in the market of the various embodiments, or to enable other ordinary skilled in the art to understand the embodiments disclosed herein.

The method for upgrading the smart door lock of this embodiment can reduce the installation difficulty and cost of the user, and facilitate the operation of ordinary users. The user only needs to replace the outer panel and the inner panel of the traditional mechanical door lock to upgrade the mechanical lock to a smart lock.

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or replacements do not deviate from the essence of the corresponding technical solutions of the technical solutions of the embodiments of the present invention. range.

Claims

A mechanical lock unlocking device is used to cooperate with the lock body, lock core and key of the mechanical lock.

The unlocking device includes:

An outer panel, the outer panel has an instruction input unit, and the instruction input unit is used to send an unlocking or locking instruction;

An inner panel, the inner panel has a motor and a key transmission mechanism, the key transmission mechanism is driven by the motor, thereby driving the key to rotate in the lock cylinder;

The unlocking device further includes a power supply unit and a control unit. The control unit is electrically connected to the instruction input unit and the motor, respectively, and can control the unlocking or locking instruction according to the instruction input unit. The motor runs and completes the unlocking or locking action.
The unlocking device for a mechanical lock according to claim 1, wherein the key transmission mechanism includes: a drive assembly having a receiving space for receiving the key; a transmission member connected to the motor to drive the The drive assembly rotates; the transmission member has a through hole for accommodating the drive assembly; the width direction of the key is defined as a first direction, and the thickness direction of the key is defined as a second direction; The hole has an offset space along the first direction and the second direction; along at least one of the first direction and the second direction, the key has an offset in the receiving space Move space.
The unlocking device for a mechanical lock according to claim 2, wherein the key has an offset space in the receiving space along one of the first direction and the second direction; In the other of the first direction and the second direction, the drive assembly has an offset space in the through hole.
The unlocking device of the mechanical lock according to claim 3, wherein the key has an offset space along the first direction in the receiving space; the drive assembly is located along the through hole in the The second direction has an offset space.
The unlocking device for a mechanical lock according to claim 2, wherein the key has an offset space in the receiving space along the first direction and the second direction.
The unlocking device of a mechanical lock according to claim 5, characterized in that, along the first direction and the second direction, there is no relative movement between the driving assembly and the through hole.
The unlocking device for a mechanical lock according to claim 2, characterized in that, along the second direction, the movable size of the key in the accommodation space is less than 0.6 mm.
The unlocking device for a mechanical lock according to claim 1, wherein the key transmission mechanism includes: a drive assembly, the drive assembly includes a key compartment for receiving the key, the key compartment has a The opening of the key and the stop surface for contacting with the key; the transmission member is connected with the motor to drive the driving assembly to rotate; the transmission member has a through hole, the through hole is used for receiving The drive assembly; defining the space on the key compartment for accommodating the key as an accommodating space; the key extends from the opening into the accommodating space, and the opening is closer to the lock than the stop surface Core setting.
The unlocking device of a mechanical lock according to claim 8, characterized in that, along the extending direction of the key, one end of the key compartment is provided with the opening, and the other end is provided with the stop surface.
The unlocking device for a mechanical lock according to claim 8, wherein the drive assembly further includes a drive member cooperating with the key compartment; the drive member is connected to the transmission member Under the drive, the driving member drives the key compartment to rotate.
The unlocking device for a mechanical lock according to claim 10, wherein the driving member is directly driven by the transmission member.
The unlocking device for a mechanical lock according to claim 10, wherein the driving member is provided with a protrusion, the transmission member is correspondingly provided with a groove, and the protrusion cooperates with the groove In the longitudinal direction of the key, the movement of the driving member relative to the transmission member is limited.
The unlocking device for a mechanical lock according to claim 10, characterized in that a reset device is provided between the driving member and the transmission member, and the reset device provides a force for the key to move toward the lock cylinder .
The unlocking device for a mechanical lock according to claim 13, wherein the resetting device includes a magnet provided on one of the drive member and the transmission member, and a magnet provided on the drive member and the An attraction element on the other of the transmission elements, the attraction element can be attracted by the magnet.
The unlocking device for a mechanical lock according to claim 10, characterized in that the key transmission mechanism is provided with a one-way limit device, the one-way limit device is configured to: along the length of the key , Only the key compartment is allowed to move towards the lock cylinder relative to the drive member.
The unlocking device for a mechanical lock according to claim 10, wherein the key transmission mechanism includes at least two key compartments, and the two key compartments have storage spaces of different sizes in the thickness direction of the key , One of the at least two key compartments cooperates with the driving member.
The unlocking device for a mechanical lock according to claim 1, wherein the key transmission mechanism includes: a drive assembly, the drive assembly includes a key compartment for receiving a key; the key compartment has a An opening; a transmission member, which is connected with a motor to drive the drive assembly to rotate; the transmission member has a through hole; the through hole is used to receive the drive assembly; and the key compartment is defined to receive the key The space is the storage space, and the direction in which the key is inserted into the lock cylinder is the insertion direction; the key extends from the opening into the storage space; and the extension direction of the key is opposite to the insertion direction.
The unlocking device for a mechanical lock according to claim 1, wherein an outer keyhole is further provided on the outer panel, and the outer keyhole is opposite to the lock core.
An installation method of a mechanical lock unlocking device, the unlocking device includes a key transmission mechanism and a motor; the key transmission mechanism includes a drive assembly and a transmission member; the drive assembly includes a key compartment and a drive member for receiving a key, The key compartment has an opening for receiving the key, and a stop surface for contacting with the key; the transmission member is drivingly connected with the motor, thereby driving the drive assembly to rotate, and the transmission member Has a through hole, the through hole is used to receive the drive assembly;

It is characterized in that the installation method includes:

A1: The key is extended into the key compartment from the opening, and the key is brought into contact with the stop surface;

A2: Connect the drive assembly to the transmission part;

A3: Apply force to the key compartment, the key compartment drives the key to move relative to the transmission member until the key is inserted into the lock cylinder to a specific position.
The installation method of the unlocking device of the mechanical lock according to claim 19, wherein the method A2 further comprises:

Cooperate the key compartment with the driving part;

The driving part is connected to the transmission part.
The installation method of the unlocking device of the mechanical lock according to claim 19, wherein the method A2 further comprises:

Connect the driving part with the transmission part;

Match the key compartment with the drive member.
An installation method of a mechanical lock unlocking device, the unlocking device includes a key transmission mechanism and a motor; the key transmission mechanism includes a drive assembly and a transmission member; the drive assembly includes a key compartment and a drive member for receiving a key, The key compartment has an opening for receiving the key, and a stop surface for contacting with the key; the transmission member is drivingly connected with the motor, thereby driving the drive assembly to rotate, and the transmission member Has a through hole, the through hole is used to receive the drive assembly;

It is characterized in that the installation method includes:

B1: Insert the key into the lock cylinder through the through hole and move the key to a specific position;

B2: connect the drive assembly with the transmission member;

B3: Applying force to the key compartment, the key compartment moves relative to the transmission member, and finally causes the stop surface to contact the key.