CN112302427B

CN112302427B - Key transmission mechanism and installation method thereof

Info

Publication number: CN112302427B
Application number: CN201910713894.1A
Authority: CN
Inventors: 马一纯; 陈广鑫; 钟红风
Original assignee: Positec Power Tools Suzhou Co Ltd
Current assignee: Positec Power Tools Suzhou Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2023-12-08
Anticipated expiration: 2039-08-02
Also published as: CN112302427A

Abstract

The present disclosure relates to a key transmission mechanism and a method of installing the same. The key transmission mechanism comprises a driving assembly and a transmission piece; the driving assembly comprises a key bin; the key bin is provided with an opening for receiving a key and a stop surface for abutting the key; the transmission piece is in transmission connection with the motor so as to drive the driving assembly to rotate; the transmission part is provided with a through hole for accommodating the driving component; the key extends into the key bin from the opening, and the opening is arranged closer to the lock cylinder than the stop surface. The key transmission mechanism provided by the disclosure is characterized in that a key is abutted with a stop surface arranged on a key bin and is movably accommodated in the key bin; the fastening device between the existing key and the key bin is omitted, and when the key bin is stressed, the stop surface drives the key to move together.

Description

Key transmission mechanism and installation method thereof

Technical Field

The invention relates to a transmission mechanism, in particular to a key transmission mechanism.

Background

An intelligent unlocking device is characterized in that lock cylinders which are mutually communicated are arranged on the inner side and the outer side of a door plate, so that a key can be unlocked no matter in which direction the key is inserted; on one hand, the traditional design of opening the door by using a key outside the door is reserved; on the other hand, the user can control the key in the door to rotate in modes of fingerprint, mobile phone APP and the like, so that the aim of opening the door is fulfilled. The working principle of the intelligent unlocking device is roughly described as follows: the user inputs the fingerprint on the front panel outside the door plant, and the mode control motor of password rotates, and the motor drives key drive mechanism and drives the inboard key of door to rotate in the lock core promptly to open the door. The key transmission mechanism includes: a transmission component connected with the motor, a key bin for accommodating keys, and the like. The transmission assembly is provided with a through hole for a key to pass through, and the key is inserted into the lock cylinder through the through hole. The key bin is connected with the transmission component and can rotate under the drive of the motor. In order to solve the incomplete alignment of the transmission component and the lock cylinder caused by the installation error, the key is blocked, and the key bin is constructed as follows: in the horizontal direction as well as in the vertical direction, is movable relative to the transmission assembly. Therefore, the key can automatically adjust the position of the key relative to the transmission assembly, and the phenomenon of blocking is avoided.

In the key transmission mechanism, a fastening device is arranged between the key bin and the key, the fastening device enables no relative movement between the key and the key bin, and the key bin can drive the key to move. However, this brings a new problem-during the installation of the key transmission, the key magazine and the key must be restrained by the fastening means; and simultaneously, when the key is required to be replaced, the limit of the fastening device on the key bin and the key is also required to be released, so that the key can be taken out of the key bin.

Disclosure of Invention

The technical problem to be solved by the invention is to provide the key transmission mechanism, which can omit a fastening device arranged between a key and a key bin, so that the key transmission mechanism has simpler structure and more convenient installation process.

In order to solve the problems, the technical scheme of the invention is as follows: a key transmission mechanism for mating with a key, wherein the key transmission mechanism comprises: a drive assembly including a key cartridge for receiving the key, the key cartridge having an opening for receiving the key, a stop surface for abutting the key; the transmission piece is in transmission connection with the motor so as to drive the driving assembly to rotate; the driving component is provided with a through hole, and the through hole is used for accommodating the driving component; defining a space on the key bin for accommodating the key as an accommodating space; the key extends into the accommodating space from the opening, and the opening is arranged closer to the lock cylinder than the stop surface.

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

In one embodiment, the drive assembly further comprises a drive member that mates with the key fob; the driving piece is connected with the transmission piece, and the driving piece drives the key bin to rotate under the driving of the transmission piece.

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

In one embodiment, the driving member is provided with a protrusion, the transmission member is correspondingly provided with a groove, and the protrusion cooperates with the groove to limit the movement of the driving member relative to the transmission member in the longitudinal direction of the key.

In one embodiment, a reset device is provided between the driver and the transmission, the reset device providing a force for the key to move towards the lock cylinder.

In one embodiment, the resetting device comprises a magnet arranged on one of the driving member and the transmission member, and an attracting member arranged on the other of the driving member and the transmission member, wherein the attracting member can be attracted by the magnet.

In one embodiment, the key transmission is provided with a one-way stop configured to: only the key cartridge is allowed to move relative to the driver in a direction along the length of the key, approaching the lock cylinder.

In one embodiment, the key transmission mechanism comprises at least 2 key bins, the 2 key bins are provided with accommodating spaces with different sizes along the thickness direction of the key, and the at least 2 key bins are alternatively matched with the driving piece.

In one embodiment, a width direction of the key is defined as a first direction, and a thickness direction of the key is defined as a second direction; the key is provided with an offset space in the through hole along the first direction and the second direction; along at least one direction of the first direction and the second direction, the key has an offset space in the accommodating space.

In one embodiment, the key has an offset space in the accommodating space along one of the first direction and the second direction; along the other direction of the first direction and the second direction, the driving component is provided with an offset space in the through hole.

In one embodiment, the key has an offset space in the receiving space along the first direction; the driving component is provided with an offset space along the second direction at the through hole.

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

In one embodiment, there is no relative movement between the drive assembly and the transmission along the first and second directions.

In one embodiment, the movable dimension of the key in the accommodating space along the second direction is smaller than 0.6mm.

In order to solve the above problems, another technical solution of the present invention is: a key transmission mechanism for mating with a key, wherein the key transmission mechanism comprises: a drive assembly including a key compartment for receiving a key; the key cartridge having an opening for receiving the key; the transmission piece is in transmission connection with the motor so as to drive the driving assembly to rotate; the transmission piece is provided with a through hole; the through hole is used for accommodating the driving component; defining a space on the key bin for accommodating the key as an accommodating space, wherein the direction of inserting the key into the lock cylinder is an inserting direction; the key extends into the accommodating space from the opening; and the extending direction of the key is opposite to the inserting direction.

In order to solve the technical problems, another technical scheme of the invention is as follows: a key transmission mechanism for matching with a key, wherein the key transmission mechanism comprises a driving assembly, a driving assembly and a driving assembly, wherein the driving assembly comprises a containing part and a stopping part; the accommodating part is provided with an opening for receiving the key, and the stopping part is provided with a stopping surface for abutting against the key; the transmission piece is in transmission connection with the motor so as to drive the driving assembly to rotate; the transmission piece is provided with a through hole; the through hole is used for accommodating the driving component; defining a space on the accommodating part for accommodating the key as an accommodating space; the key extends into the accommodating space from the opening, and the opening is arranged closer to the lock cylinder than the stop surface.

According to the key transmission mechanism provided by the invention, a key extends into the accommodating space of the key bin from the opening, and the opening is arranged closer to the lock core than the stop surface; therefore, when the key bin is stressed, the key bin can drive the keys to move together, so that a fastening device for fixing the keys and the key bin is omitted; the key transmission mechanism has simpler structure.

According to another aspect of the present invention, there is provided a method of installing a key transmission mechanism including: the driving assembly comprises a key bin for accommodating keys and a driving piece; the key bin has an opening for receiving the key, a stop surface for abutting the key; the transmission piece is in transmission connection with the motor so as to drive the driving assembly to rotate; the transmission piece is provided with a through hole, and the through hole is used for accommodating the driving assembly; the installation method of the key transmission mechanism comprises the following steps: a1: extending the key from the opening into the key compartment and causing the key to abut the stop surface; a2: connecting the driving assembly with the transmission piece; a3: and the key bin is applied with force, and drives the key to move relative to the transmission piece until the key is inserted into the lock cylinder to a specific position.

In one embodiment, method A2 further comprises: mating the key fob with the drive; and connecting the driving piece with the transmission piece.

In one embodiment, method A2 further comprises: connecting the driving piece with the transmission piece; and matching the key bin with the driving piece.

According to another aspect of the present invention, there is provided a method of installing a key transmission mechanism including: the driving assembly comprises a key bin for accommodating keys and a driving piece; the key bin has an opening for receiving the key, a stop surface for abutting the key; the transmission piece is in transmission connection with the motor so as to drive the driving assembly to rotate; the transmission piece is provided with a through hole, and the through hole is used for accommodating the driving assembly; the installation method of the key transmission mechanism comprises the following steps: b1: inserting the key into the lock cylinder through the through hole, and enabling the key to move to a specific position; b2: connecting the driving assembly with the transmission piece; b3: the key magazine is forced to move relative to the transmission member and eventually bring the stop surface into abutment with the key.

According to the method for installing the key transmission mechanism, provided by the invention, the key only needs to extend into the accommodating space from the opening, so that the key is abutted with the stop surface of the key bin, and the key bin can drive the key to move towards the lock core together; the installation step that the key and the key bin are fixed through the fastening device in the prior art is omitted, and the installation is simpler.

Drawings

The invention will be further described with reference to the drawings and embodiments.

FIG. 1 is a schematic diagram of an intelligent lock opener provided by the invention;

FIG. 2 is an assembled perspective view of a key transmission mechanism provided in a first embodiment of the present invention, wherein the drive assembly is not mounted to the transmission;

FIG. 3 is an assembled perspective view of the key transmission mechanism shown in FIG. 2, with the drive assembly mounted to the transmission;

FIG. 4 is an assembled perspective view of the key fob and key in the key transmission mechanism of FIG. 2;

FIG. 5 is a cross-sectional view of the key transmission mechanism shown in FIG. 2, with a key received in a key locker; in fig. 5a, a force F parallel to the length direction of the key acts on the key magazine; in fig. 5b, a force Q parallel to the length direction of the key acts on the key;

FIG. 6 is an assembled perspective view of a plurality of different key cartridges and keys in the key transmission mechanism of FIG. 2;

FIG. 7a is a sectional view of the assembly between the driver and the key locker in the key transmission mechanism of FIG. 2, with a force M applied to the key locker; FIG. 7b is an enlarged view of portion A of FIG. 7a, wherein force analysis is performed on the force applied to the primary serrations of the driver;

FIG. 8a is an assembled cross-sectional view of the key transmission mechanism of FIG. 2, with force N acting on the key, between the driver and the key fob; FIG. 8B is an enlarged view of portion B of FIG. 8a, wherein force analysis is performed on the force applied to the primary serrations of the driver;

FIG. 9 is a cross-sectional view of another embodiment of a drive assembly in the key transmission mechanism shown in FIG. 2;

FIG. 10 is an assembled perspective view of the driving member and the transmission member of the key transmission mechanism shown in FIG. 2;

FIG. 11 is a schematic illustration of one method of installing the key transmission mechanism shown in FIG. 2; wherein fig. 11a-11d correspond to installation methods C1-C4, respectively.

FIG. 12 is a diagram of the positional relationship between the driver, the key, and the lock cylinder in the key transmission mechanism shown in FIG. 2 when the driver is not fully centered with the lock cylinder;

FIG. 13 is a view of 2 positional relationships between the driver and the through hole in the key transmission mechanism of FIG. 2 when the key is moved to the first position;

FIG. 14 is a view of 2 positional relationships between a key and a key locker of the key transmission mechanism of FIG. 2 when the key is moved to a first position;

FIG. 15 is a view of 2 positional relationships between the driver and the through hole in the key transmission mechanism of FIG. 2 when the key is moved to the second position;

FIG. 16 is a view of 2 positional relationships between the key and the key cartridge when the key is moved to the second position in the key transmission mechanism shown in FIG. 2;

FIG. 17 is a perspective view of another embodiment of the key transmission mechanism of FIG. 2, relating to a reset device; in fig. 17a, the reset cover is in an initial state; in fig. 17b, the reset cover is in an ejected state;

FIG. 18 is a perspective view of another embodiment of the key transmission mechanism shown in FIG. 2, involving a reset device; in fig. 18a, the reset cover is in an initial state; in fig. 18b, the reset cover is in an ejected state;

FIG. 19 is a schematic view of a portion of a return device for use in the intelligent lock opener of FIG. 1; wherein in fig. 19a, the shutter is not moved into the gap of the photovoltaic generator; in fig. 19b, the shutter is moved into the gap of the photovoltaic generator;

FIG. 20 is a perspective view of a door panel and door frame to which the intelligent lock opener of FIG. 1 is applied; at this time, the viewing angle is from the door outer side toward the door inner side; and, the lock tongue set in lock body stretches out totally;

FIG. 21 is a perspective view of a door panel and a door frame to which the intelligent lock opener of FIG. 1 is applied, with a view angle from the outside of the door toward the inside of the door; the lock tongue arranged on the lock body is in a retracted state;

FIG. 22 is a perspective view of a door panel and a door frame to which the intelligent lock opener of FIG. 1 is applied, with the view angle being from the inside of the door toward the outside of the door;

FIG. 23 is a block flow diagram of the intelligent lock opener of FIG. 1 in a door opening scenario;

FIG. 24 is a block flow diagram of the intelligent lock release shown in FIG. 1 in a closed door scenario;

FIG. 25 is a block flow diagram of the intelligent lock opener of FIG. 1 in a locked scenario;

fig. 26a is a diagram of a positional relationship between a driving member and a through hole in a key transmission mechanism according to a second embodiment of the present invention, and fig. 26b is a diagram of a positional relationship between a key and a key holder in the key transmission mechanism according to the second embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that these specific illustrations are merely illustrative of how one skilled in the art may practice the invention, and are not intended to be exhaustive of all of the possible ways of practicing the invention, nor to limit the scope of the invention.

As shown in fig. 1, the present invention provides a key transmission mechanism 100 for use in an intelligent lock opener 10. The key transmission mechanism 100 is in transmission connection with the motor 120 and is arranged on the rear panel 22 on the inner side of the door plate 20; a lock body 23 is arranged in the door plate 20, and a lock tongue for locking the door plate 20 and the door frame is arranged on the lock body 23; the lock core 24 passes through the door panel 20 and is connected with the lock body 23; the front panel 26 is arranged outside the door panel 20; the front panel 26 is provided with various input modules, such as a fingerprint module 27, a password module 28, an IC card module 29, etc., for the user to confirm the identity. The front panel 26 is also provided with an opening 31 for the user to insert the mechanical key 12. On the one hand, the user can insert the mechanical key 12 into the lock cylinder 24 through the opening 31 to open the door; alternatively, the user may control the motor 120 to rotate by inputting the identity information on the front panel 26, and then the motor 120 drives the key transmission mechanism 100 to rotate the key 10 in the lock cylinder 24, so as to open the door.

The lock cylinder 24 of the present invention allows a key to be inserted in both directions and the door to be opened. "Key inserted into Lock core 24 and capable of opening the door" must be satisfied—one end of Key inserted into Lock core 24 is moved to a specific position of lock core 24. Only in this specific position, the key side can drive the lock cylinder to rotate. As defined herein, when the key 10 on the inner side of the door panel 20 can drive the lock cylinder 24 to rotate, the position where one end of the key is inserted into the lock cylinder 24 is a first specific position; when the key 12 outside the door panel 20 can drive the lock cylinder 24 to rotate, the position where one end of the key is inserted into the lock cylinder 24 is a second specific position; the first specific location and the second specific location are disposed in different areas of the lock cylinder 24 along the length of the key.

And, the lock cylinder 24 is configured to: at the same time, only the keys on one side of the door panel 20 are allowed to be in their corresponding specific positions. This is because, when a key on one side is biased to move toward a specific position, the key will exert a pushing force on the key on the other side; once the key which is forced to move to a specific position, the key on the other side is ejected to an unspecified position which can not drive the lock cylinder to rotate. The method comprises the steps that a comparison is made, and in the state that the door plate 20 is normally closed, the key 10 on the inner side is positioned at a first specific position; if the user opens the door by selecting the way to insert the mechanical key 12 outside the door panel 20, he needs to insert the key 12 from outside the door panel 20 into the lock cylinder 24 and move it to the second specific position; while the key 12 outside the door panel 20 moves to the second specific position, the key 10 inside the door panel 20 is pushed back by the ejection force of the key 12 outside and is retracted away from the first specific position.

Referring to fig. 2 to 3, the key transmission mechanism 100 provided by the present invention includes: a drive assembly 102 and a transmission 104. The drive assembly 102 has a receiving space 106 for receiving the key 10; the transmission piece 104 is in transmission connection with the motor 120 so as to drive the driving assembly 102 to rotate; the transmission 104 has a through hole 108 for receiving the drive assembly 102. The key 10 is inserted into the lock cylinder 24 through the through hole 108. Here, the width direction of the key 10 is defined as a first direction X, the thickness direction of the key 10 is defined as a second direction Y, and the length direction of the key 10 is defined as a direction Z. Here, the first direction X, the second direction Y, and the direction Z are all directions similar to the horizontal direction and the vertical direction in life, with the key itself as a reference, and without directivity on one side. The terms "east-west" and "east-west" each include one-sided directivity. The direction of inserting the key 10 into the lock cylinder 24 and the direction of inserting the key 10 into the accommodating space 106 include one-sided directivity

In this embodiment, the drive assembly 102 includes a key locker 101 and a driving member 103 that is positively engaged with the key locker 101.

As shown in fig. 4-5, the key locker 101 is generally U-shaped in configuration, including a bottom 1010, 4 side walls 1011, and an opening 1012 for receiving the key 10. The key 10 extends into the key box 101 from the opening 1012, and is accommodated in the key box 101. Along the direction in which the key 10 extends into the key locker 101, one end of the key locker 101 is an opening 1012, and the other end is a bottom 1010. Here, the space in the key locker 101 for accommodating the key 10 is defined as the accommodating space 106.

In order to reduce the weight of the key locker 101 and reduce the noise of the key locker 101 striking the transmission member 104 during rotation, the key locker 101 is also symmetrically provided with a plurality of lightening holes 1060.

When the key 10 is accommodated in the key housing 101, the tail end thereof abuts against the bottom 1010 of the key housing 101. Here, the portion of the bottom 1010 that is used to abut the key 10 is defined as a stop surface 1014. In this embodiment, when the drive assembly 102, which houses the key 10, is coupled to the driver 104, the opening 1012 is positioned closer to the lock cylinder 24 than the stop surface 1014.

Thus, when the key locker 101 receives a force F parallel to the length direction of the key 10, as shown in FIG. 5a, the stop surface 1014 will urge the key 10 to move with the key locker 101; when the key 10 is subjected to a force Q parallel to the length direction of the key 10, the key 10 will abut the stop surface 1014, urging the key magazine 101 to move with the key 10, as shown in fig. 5 b.

In one embodiment, to accommodate keys 10 having different thicknesses, the key transmission mechanism 100 is configured with a variety of key cartridges 101. As shown in fig. 6, the key transmission mechanism 100 is provided with 5 kinds of key cartridges 101, respectively 101a-101e, and the size of the accommodating space on each key cartridge 101 in the thickness Y of the key is different for accommodating keys 10a-10e having different thickness sizes. In use, a matching key locker 101 is selected according to keys 10 of different specifications, and the selected key locker 101 is matched with the driving member 103. The driving member 103 is in a form fit with the key locker 101. Here, form fit refers to: after the driving member 103 is driven to rotate by the transmission member 104, it can transmit the rotation to the key locker 101, both of which remain relatively stationary in the rotational direction.

In the present embodiment, as shown in fig. 3, the outer surface of the key holder 101 and the inner surface of the driver 103 are fitted to each other, and the gap between the outer surface of the key holder 101 and the inner surface of the driver 103 is very small. It is considered that there is no relative movement in the rotation direction between the driving member 103 and the key fob 101 during rotation of the two.

Of course, in other embodiments, other torque transmitting portions may be provided on the key locker 101, such as a torque transmitting protrusion provided on an outer surface of the key locker 101 and a torque transmitting groove provided on an inner surface of the driving member 103. The torque transmitting protrusions cooperate with the torque transmitting grooves to transfer motion from the driver 103 to the key locker 101 and to keep the driver 103 and the key locker 101 relatively stationary in the rotational direction.

Keys 10 of different gauges have different length dimensions. In the longitudinal direction Z of the key 10, the position of the end of the key 10 inserted into the key cylinder 24 is relatively fixed, whereas the length of the key 10 is not unique, and thus the position of the bottom 1010 where the key holder 101 abuts against the key 10 is not fixed. Therefore, the key magazine 101 is slidable along the driver 103 in the longitudinal direction Z of the key 10.

In the longitudinal direction Z of the key 10, the key magazine 101 is configured to be movable only in a direction approaching the key cylinder 24 with respect to the driver 103. That is, when the key 10 is retracted by the ejection force of the outer door key 12, the key housing 101 will drive the driving member 103 to retract together, and there is no relative movement between the key housing 101 and the driving member 103.

Referring to fig. 7 to 8, the inner surface of the driving member 103 is provided with a main serration 130 including a plurality of serrations, a single serration including a main serration surface 1301 parallel to the second direction Y and a side serration surface 1302 inclined from the main serration surface 1301; the primary serrations 130 are formed from an elastic material that deforms when subjected to a force. Correspondingly, the outer surface of the key holder 101 is provided with secondary serrations which form-fit with the primary serrations 130.

As shown in fig. 7a, when a force M parallel to the longitudinal direction Z of the key 10 is applied to the key holder 101, a force from the key holder 101 applied to the driver 103 acts on the side saw tooth surface 1302. Referring to fig. 7b, the force applied to one of the side saw tooth faces 1302 is defined as M'; force analysis is performed on the force M' when the side saw tooth surface 1302 is subjected to a component M parallel to the length direction Z of the key 10 _z ' component M parallel to the second direction Y _y 'A'; component of force M _y ' deform the main serrations 130 outward, giving the key locker 101 room to slide, component M _z ' move the key locker 101 in a direction approaching the key cylinder 24.

When a force N parallel to the longitudinal direction Z of the key 10 is applied to the key 10, as shown in fig. 8a, a force from the key magazine 101 received by the driver 103 acts on the main saw tooth surface 1301; referring to fig. 8b, defining a force N ' applied to one of the main flanks 1301, as a result of analysis of this force N ', the main flanks 1301 are only subjected to a force N ' parallel to the longitudinal direction Z of the key 10; the force does not deform the primary serrations 130, but merely causes the driver 103 to retract with the key locker 101. Thus, when the key 10 is moved backward by the pushing-out force of the door outer key 12, the key housing 101 will drive the driver 103 backward together.

Of course, in other embodiments, the key fob 101 can be disassembled into: at least the assembly of the housing 1013 and the stopper 1015. In the present embodiment, the housing 1013 and the stopper 1015 are integrally formed, and together form the key housing 101. In particular, "integrally" is to be understood as meaning at least a material-locking connection, for example by means of a welding process, an adhesive bonding process, an injection process and/or other processes deemed expedient by the skilled worker, and/or advantageously as being formed in one piece, for example by casting from one cast part and/or by injection molding in one or more components and preferably from one single blank.

As shown in fig. 9, the housing 1013 has an opening 1012 for receiving the key 10, the stopper 1015 has a stopper surface 1014 for abutting against the key 10, and the housing space 106 is provided in the housing 1013. The key 10 extends from the opening 1012 into the receiving space 106, and the tail end thereof abuts against the stop surface 1014. In the present embodiment, the housing 1013 is in interference fit with the driver 103 and abuts against the stopper 1015; a unidirectional limiting device is arranged between the stop 1015 and the driving member 103. In this way, when a force parallel to the longitudinal direction of the key 10 is applied to the stopper 1015, the stopper 1015 will bring the key 10 and the housing 1013 together to move relative to the driver 103, and the key 10 is inserted into the key cylinder 24. When a force parallel to the length direction of the key 10 is applied to the key 10, the key 10 abuts against the stop surface 1014, and the stop 1015 is pushed to drive the driver 103 to move backwards together; further, because of the interference fit between the driver 103 and the housing 1013, the housing 1013 will also move together with the driver 103, so the housing 1013 is always in a state of abutting against the stopper 1015. In the process that the transmission member 104 drives the driving member 103 to rotate, the driving member 103 drives the accommodating portion 1013 and the stop portion 1015 to move together.

In one possible embodiment, only the drive element and the stop can be provided. The driving piece comprises a containing part for containing the key, and an opening for receiving the key is formed in the containing part; the stop part is provided with a stop surface abutting against the key. A unidirectional limiting device is arranged between the driving piece and the stop part. In brief, the housing in fig. 9 is formed integrally with the driver. This can also be achieved: when a force parallel to the length direction of the key is applied to the stop part, the stop part drives the key to move and is inserted into the lock cylinder; when the key is subjected to the ejection force of the key outside the door, the key pushes the stop part to move backwards, and meanwhile, due to the arrangement of the one-way limiting device, the driving piece moves together with the stop part.

As shown in fig. 2 and 10, the transmission member 104 is rotatably supported by the transmission case 105 with its rotation axis parallel to the longitudinal direction Z of the key 10. The transmission 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 driving unit 102.

The transmission piece 104 is connected with the driving piece 103 and drives the driving piece 103 to rotate; and, in the longitudinal direction of the key 10, the movement of the driving member 103 relative to the transmission member 104 is limited. Specifically, as shown in fig. 10, 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 recess 1075 which cooperates with the protrusion 1035 of the driving member 103. Thus, when the motor 120 is controlled to rotate, the gear portion 107 can drive the driving member 103 to rotate; when a force is applied to the driver 103 parallel to the length direction Z of the key 10 and in proximity to the lock cylinder 24, the driver 103 can only move to a position where the protrusion 1035 mates with the recess 1075.

In this embodiment, the driving member 103 is directly engaged with the transmission member 104 without an intermediate member therebetween. That is, the driving member 103 is directly driven by the transmission member 104. In the present embodiment, the transmission case 105 is fixedly provided on the rear panel 22, and the transmission member 104 is rotatably supported by the transmission case 105, and the key 10 is inserted into the key cylinder 24 through a through hole 108 provided in the gear portion 107.

Referring to fig. 11a to 11d, a method of installing the key transmission mechanism 100 can be described as:

c1: first, the key 10 is inserted into the key cylinder 24 through the through hole 108, and the key 10 is moved to a specific position;

c2: connecting the driving member 103 with the transmission member 104; specifically, the protrusion 1035 of the driving member 103 is slid into the recess 1075 along the driving member 104, and the bottom surface of the protrusion 1035 facing the driving member 104 is abutted with the bottom of the recess 1075;

and C3: sleeving the key cabin 101 into the driving piece 103;

and C4: applying a force to the key locker 101 parallel to the insertion direction Z of the key 10, driving the key locker 101 to slide along the driving member 103 and eventually causing the stop surface 1014 of the key locker 101 to abut the key 10;

in one possible embodiment, the method of installing the key transmission 100 may also be described as:

C1: first, the key 10 is inserted into the lock cylinder 24 through the through hole 108, and the key is moved to a specific position;

d2: sleeving the key cabin 101 into the driving piece 103;

d3: connecting the driving member 103 with the transmission member 104; specifically, the protrusion 1035 of the driving member 103 is slid into the recess 1075 along the driving member 104, and the bottom surface of the protrusion 1035 facing the driving member 104 is abutted with the bottom of the recess 1075;

d4: the key locker 101 is driven to slide along the driving member 103 by applying a force parallel to the insertion direction Z of the key 10 to the key locker 101, and finally the stopper surface 1014 of the key locker 101 is brought into abutment with the key 10.

e1: extending the key 10 from the opening 1012 into the key locker 101 such that the key 10 abuts the stop surface 1014 of the key locker 101;

e2: connecting the driving member 103 with the transmission member 104; specifically, the protrusion 1035 of the driving member 103 is slid into the recess 1075 along the driving member 104, and the bottom surface of the protrusion 1035 facing the driving member 104 is abutted with the bottom of the recess 1075;

e3: sleeving the key cabin 101 into the driving piece 103;

e4: the key locker 101 is applied with a force parallel to the insertion direction Z of the key 10, driving the key locker 101 to slide along the driving member 103 and finally causing the key 10 to be inserted into the key cylinder 24 and moved to a specific position.

f2: sleeving the key cabin 101 into the driving piece 103;

f3: connecting the driving member 103 with the transmission member 104; specifically, the protrusion 1035 of the driving member 103 is slid into the recess 1075 along the driving member 104, and the bottom surface of the protrusion 1035 facing the driving member 104 is abutted with the bottom of the recess 1075;

f4: the key locker 101 is applied with a force parallel to the insertion direction Z of the key 10, driving the key locker 101 to slide along the driving member 103 and finally allowing the key 10 to be inserted into the key cylinder 24.

A reset device is further disposed between the transmission member 104 and the driving assembly 102, and the reset device provides a force for maintaining the protrusion 1035 of the driving member 103 to abut against the groove 1075 of the gear portion 107.

In the present embodiment, the accommodating space 106 is configured to: allowing the key 10 to move in a first direction X inside thereof; the through hole 108 is configured to: allowing the driving member 103 to move in the second direction Y inside thereof; thus, the key 10 is movable in both the first direction X and the second direction Y within the through hole 108. That is, the key 10 has an offset space in the through hole 108 along the first direction X and the second direction Y. So configured, when the transmission member 104 rotates the key 10, the key 10 has a space slidable in the first direction X and the second direction Y, and the key 10 is not locked due to misalignment of the transmission member 104 and the lock cylinder 24.

To more clearly illustrate the seizing of key 10, fig. 12 generally illustrates a simplified positional diagram between transmission 104, key 10 and lock cylinder 24. As shown in fig. 12, one end of the key 10 is inserted into the key cylinder 24, and the other end is driven by the transmission member 104; due to installation errors, the center line P of the driving member 104 and the center line V of the lock cylinder 24 cannot be exactly centered; then, during the process of driving the key 10 by the transmission member 104 to rotate, since one end of the key 10 is fixed by the lock cylinder 24, the other end of the key 10 will be locked to the transmission member 104, so that the locking phenomenon occurs.

In the technical solution of the present invention, the key 10 has a space for moving along the first direction X and the second direction Y relative to the transmission member 104, and the key 10 can self-adjust its position relative to the transmission member 104, so that the seizing phenomenon does not occur.

The driving member 103 is movable in the through hole 108 along the second direction Y, and has two extreme positions; the key 10 is movable in the first direction X within the receiving space 106 and also has two extreme positions. In view of the fact that the key 10 is rotatable, there are numerous spatial relationships between the key 10 and the transmission case 105, and the following only exemplifies the positional relationships between the driving member 103 and the through hole 108, and between the key 10 and the receiving space 106, when the key 10 is in two rotational positions.

Fig. 13 is a view showing 2 positional relationships between the driving member 103 and the through hole 108 when the key 10 is rotated to a first position where the width direction X thereof is perpendicular to the long side L of the transmission case 105. In fig. 13a, the driving member 103 is moved to the uppermost position of the through hole 108 in the second direction Y; in fig. 13b, the driving member 103 is moved to the position of the lowermost end of the through hole 108 in the second direction Y.

Fig. 14 is a view showing 2 positional relationships between the key 10 and the key housing 101 when the key 10 is rotated to a first position where the width direction X thereof is perpendicular to the long side L of the transmission case 105. In fig. 14a, the key 10 is moved to the leftmost end of the key locker 101 in the first direction X; in fig. 14b, the key 10 is moved to the rightmost end of the key locker 101 in the first direction X;

fig. 15 is a view showing 2 positional relationships between the driving member 103 and the through hole 108 when the key 10 is rotated to the second position where the width direction X thereof is parallel to the long side L of the transmission case 105. In fig. 15a, the driving member 103 moves to the position of the rightmost end of the through hole 108 in the second direction Y; in fig. 15b, the driving member 103 moves to the leftmost position of the through hole 108 in the second direction Y.

Fig. 16 is a diagram showing 2 positional relationships between the key 10 and the key housing 101 when the key 10 is rotated to the second position where the width direction X thereof is parallel to the long side L of the transmission case 105. In fig. 16a, the key 10 is moved to the lowermost end of the key locker 101 in the first direction X; in fig. 16b, the key 10 is moved to the uppermost end of the key locker 101 in the first direction X.

In one possible embodiment, the key 10 may also be configured to: an offset space is formed in the accommodating space 106 along the second direction Y; the driving member 103 is configured to: there is a space for displacement in the first direction X in the through hole 108. Thus, along the first direction X and the second direction Y, the key 10 has a space for shifting in the through hole 108; the key 10 is self-adjusting in its position relative to the transmission member 104 so that jamming does not occur. When the accommodating space 106 has an offset space in the second direction Y, the gap p between the key 10 and the boundary of the accommodating space 106 in the second direction Y may not be excessively large.

For different usage habits, there is a case where the user uses the intelligent lock opener 10: first user selection: the door is opened by means of a mechanical key 12 on the outside of the door; second user selection: the door is opened by the key transmission mechanism 100 which drives the key 10 inside the door to rotate in the lock cylinder 24. A problem arises in this case: as the extra-door mechanical key 12 is inserted into the lock cylinder 24, the key 10 inside the door will be backed by the ejection force of the extra-door key 12; as the outer door key 12 moves to the second specific position, the inner door key 10 will retract from the first specific position which effectively rotates the lock cylinder 24; even if the second user successfully drives the key transmission mechanism 100 to rotate through the input module, the key 10 in the door still cannot drive the lock cylinder 24 to rotate, and the door cannot be opened.

The aforementioned resetting means provides precisely the force of the movement of the key 10 towards the lock cylinder 24, so that after the first user has successfully opened the door and removed the key 12 outside the door, the driving member 103 can move with respect to the gear part 107 in a direction towards the lock cylinder 24, into a position in which the projection 1035 abuts the bottom of the recess 1075, and finally the key 10 is effectively inserted into the lock cylinder 24.

In this embodiment, as shown in fig. 10, the reset device includes: a magnet 121 provided on a face of the protrusion 1035 facing the transmission member 104, and an attracting member 123 provided at a bottom of the recess 1075, the attracting member 123 being attracted by the magnet 121; of course, the magnet 121 may be provided in the recess 1075 of the gear portion 107, and the attraction member 123 may be provided on the protrusion 1035 of the driving member 103. When the key 12 outside the door is pulled out, the ejection force applied to the key 10 inside the door disappears, and the attraction force between the magnet 121 and the attraction member 123 makes the driving assembly 102 slide towards the direction approaching the lock core 24; thereby, the driving piece 103 moves to a position where the protrusion 1035 abuts against the groove 1075, and drives the key 10 to be effectively inserted into the lock cylinder 24, so that automatic resetting of the driving assembly 102 is realized. Further, the recess 1075 is configured as a guide slot for guiding rearward movement of the drive assembly 102, the length of the guide slot being greater than the maximum distance that the drive assembly 102 will move after being ejected by the outer door key 12.

In the present embodiment, the force for urging the drive assembly 102 to return to the key 10 to be effectively inserted into the key cylinder 24 is provided by the attractive force between the magnet 121 and the attraction member 123, and the attraction member 123 is provided on the gear portion 107; and the magnitude of the attractive force between the magnet 121 and the attraction member 123 is positively correlated with the distance; in the longitudinal direction Z of the key 10, the key magazine 101 is movable along the driving member 103 in a direction toward the key cylinder 24, or is movable together with the driving member 103 in a direction away from the key cylinder 24; that is, the position of the key locker 101 with respect to the gear portion 107 is less fixed with respect to the driving member 103. Therefore, the magnet 121 is more suitably disposed on the driving member 103 than the magnet 121 is disposed on the key locker 101.

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

Of course, the form of the resetting means is not limited to the magnet form mentioned in the present embodiment. Such as the force that can be selected to provide movement of the drive assembly 102 toward the lock cylinder 24 by the spring force, specifically, as shown in fig. 17, the reset device includes: a reset box 109 fixedly arranged on the rear panel, a reset cover 111 movably connected with the reset box 109 and an elastic member 113. Wherein, the reset box 109 is fixedly provided with a limit part 1091 for limiting the movement of the reset cover 111; the reset cover 111 is movable relative to the reset case 109 along the length Z of the key 10; one end of the elastic member 113 is connected to the reset case 109, and the other end is connected to the reset cover 111. When the reset cover 111 is in the initial state, as shown in fig. 17a, the elastic member 113 is in the micro-stretched state; under the action of the elastic member 113, the reset cover 111 abuts against the driving member 103, so that the key 10 is effectively inserted into the lock core 24; while the movement of the reset cover 111 toward the key cylinder 24 is restricted by the restricting portion 1091; when the key 12 is inserted into the outside of the door, the key 12 applies ejection force to the key 10 in the door, the key 10 drives the driving piece 103 to move backwards together, the driving piece 103 abuts against the reset cover 111, the reset cover 111 is driven to move in a direction away from the lock core 24 along the length direction of the key 10, at this time, the reset cover 111 is in an ejected state, and the elastic piece 113 is further stretched, as shown in fig. 17 b; when the key 12 outside the door is pulled out, the ejection force received by the key 10 inside the door is removed, the reset cover 111 moves towards the direction approaching the lock core 24 under the action of the elastic member 113, and returns to the initial state of abutting against the limiting portion 1091, and the driving member 103 drives the key 10 to be reinserted into the lock core 24.

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

Fig. 18 generally illustrates another arrangement of the elastic member 113'.

As shown in fig. 18, the reset device includes: a reset box 109 fixedly arranged on the rear panel 22, a reset cover 111 movably connected with the reset box 109 and an elastic member 113'. Wherein, the reset box 109 is fixedly provided with a limit part 1091 for limiting the movement of the reset cover 111; the reset cover 111 is movable relative to the reset case 109 along the length Z of the key 10; one end of the elastic member 113' is connected to the reset case 109, and the other end is connected to the reset cover 111. When the reset cover 111 is in the initial state, as shown in fig. 18a, the elastic member 113' is in the slightly compressed state; under the action of the elastic member 113', the reset cover 111 abuts against the driving member 103, so that the key 10 is effectively inserted into the lock cylinder 24; while the movement of the reset cover toward the lock cylinder 24 is restricted by the restricting portion 1091; when the key 12 is inserted into the outside of the door, the key 12 outside the door applies ejection force to the key 10 in the door, the key 10 drives the driving piece 103 to move backwards together, the driving piece 103 abuts against the reset cover 111, the reset cover 111 is driven to move in the direction away from the lock core 24 along the length direction of the key 10, at this time, the reset cover 111 is in an ejected state, and the elastic piece 113' is further compressed, as shown in fig. 18 b; when the key 12 outside the door is pulled out, the ejection force received by the key 10 inside the door disappears, the reset cover 111 moves towards the direction approaching the lock core 24 under the action of the elastic member 113', and returns to the initial state of abutting against the limiting portion 1091, and the driving member 103 drives the key 10 to be reinserted into the lock core 24.

Another possible case is: a first user selects to open the door in a mode that the key transmission mechanism 100 drives the key 10 on the inner side of the door to rotate in the lock cylinder 24; a second user option to open the door by using a mechanical key 12 on the outside of the door; a problem arises in this case: after the first user opens the door, the lock cylinder 24 has been rotated to an unnatural position. At this time, the key 12 outside the door cannot be effectively inserted into the lock core 24, and the key 10 inside the door is pushed out, so that the lock core 24 is driven to rotate to open the door. Here, the lock core 24 being in the natural position means that: the key 12 outside the door can be inserted into the lock cylinder 24 and moved to a second specific position, so that the key 10 inside the door can be ejected, the lock cylinder 24 is driven to rotate, and the door is opened. In this embodiment, the lock cylinder 24 is in a natural position, and when the key 12 outside the door can be effectively inserted, the width direction of the key 12 is the horizontal direction in the conventional sense, that is, the direction perpendicular to the long side L of the transmission case 105.

For this purpose, the intelligent unlocking device 10 of the present invention is also provided with a return device. The return device is used for controlling the motor 120 to rotate when the lock cylinder 24 is located at the unnatural position; in turn, the key transmission mechanism 100 is driven to rotate the key 10, and finally the lock cylinder 24 is rotated to a natural position.

In the present embodiment, as shown in fig. 19, the return device includes a pair of shutters 110 provided on the circumference of the gear portion 107 at 180 ° intervals, and a photoelectric generator 114 fixedly provided on a control board 112. The control plate 112 is fixedly disposed within the transmission case 105. During rotation of the motor-driven gear portion 107, the shutter 110 periodically passes through the gap of the photo-generator 114. When the shutter 110 is rotated into the gap of the photo-electric generator 114, the key 10 drives the lock cylinder 24 to rotate to the natural position.

The photoelectric generator 114 is electrically connected to the processing unit of the control board 112, and converts the optical signal into electrical signal and transmits the electrical signal to the processing unit. When the shutter 110 is not rotated into the gap of the photo generator 114, as shown in fig. 19a, the photo generator 114 transmits a first electrical signal to the processing unit, and the processing unit receives the first electrical signal to control the motor 120 to continue to rotate; when the shutter 110 rotates into the gap between the photo-electric generators 114, as shown in fig. 19b, the photo-electric signals between the photo-electric generators 114 are blocked, the photo-electric generators 114 transmit the second electric signals to the processing unit, and the processing unit controls the motor 120 to stop working after receiving the second electric signals, and at this time, the key transmission mechanism 100 drives the key 10 to rotate to the above-mentioned natural position.

The triggering conditions for the return device to start working are as follows: the processing unit determines that the lock cylinder 24 has rotated to an unlocked or locked position in which continued rotation is not possible.

In a possible embodiment, the processing unit is configured to: whether the lock cylinder 24 is in the unlocking position or the locking position is judged according to the value of the current flowing through the motor 120. Specifically, when the lock core 24 cannot continue to rotate, the motor 120 is blocked, and the current value flowing through the motor 120 is far greater than the current value when the motor 120 is operating normally. Thus, the processing unit can determine whether the lock cylinder 24 is in the unlocked or locked position.

The general working principle of the return device is as follows:

when the processing unit determines that the lock core 24 has rotated to an unlocking position or a locking position, which cannot be rotated continuously, an instruction is sent to the motor 120;

the motor 120 starts to rotate reversely after receiving the instruction;

the key transmission mechanism 100 is driven by the motor 120 to reversely rotate, and the shutter 110 rotates together with the gear portion 107;

when the shutter 110 rotates into the gap of the photosensor 114 for the first time, the photosensor 114 emits a second electric signal to the processing unit;

the processing unit receives the second electric signal and controls the motor 120 to stop working.

It is noted that the photoelectric sensor 114 can signal the processing unit based on its positional relationship with the shutter 110 only after the return means has started to operate. That is, the photovoltaic generator 114 can only operate after the lock cylinder 24 is rotated to an unlocked or locked position in which it is not possible to continue rotation. While the photoelectric sensor 114 does not operate when the key transmission mechanism 100 is driving the key 10 to rotate in the lock cylinder 24 for unlocking or locking purposes.

Several operational scenarios of the intelligent lock 10 and operational timings of the return means of the present invention will be described in detail with reference to fig. 20 to 25.

Scene one: door opening

What we often say as a door opening operation is: the lock tongue arranged on the door plate is withdrawn from the lock tongue groove in the door frame, the restraint of the door plate is released, and the door can be opened. In this embodiment, as shown in fig. 20 to 22, a latch 21 is provided on the door panel 20, and a latch groove 25 that mates with the latch 21 is provided on the door frame 23. When the latch tongue 21 is fully inserted into the latch tongue groove 25, the door panel 20 is locked; when the latch tongue 21 is completely withdrawn from the latch tongue groove 25 in a retracted state not protruding from the door panel 20, the door panel 20 may be opened as shown in fig. 21. Wherein, the lock tongue 21 comprises a oblique tongue 211 and a square tongue 213; the latch 211 is spring-preloaded and disposed on the door panel 20, and can be pushed and retracted by the lock core 24 after the latch 211 is forced by external force, such as when closing the door. The door panel 20 is also provided at the inner and outer sides thereof with upper lock buttons 31 for user operation, respectively.

Referring to fig. 23, the flow of the door opening operation may be described as:

the user inputs identity information, such as a fingerprint, password, etc., at an input module on the front panel 26;

The processing unit carries out identity judgment according to the input identity information;

through the identification, the processing unit sends out a working instruction to the motor 120;

the motor 120 receives an instruction to rotate in a first direction, and drives the key transmission mechanism 100 to drive the key 10 to rotate in the lock cylinder 24;

when the key 10 and the lock cylinder 24 rotate to an unlocking position in which the key cannot rotate continuously, the lock tongue 21 is all withdrawn from the lock tongue groove 25, and the door is opened;

the processing unit judges that the lock cylinder 24 rotates to an unlocking position and controls the return device to work;

the motor 120 is driven to rotate in the reverse direction, so that the key transmission mechanism 100 drives the key 10 to rotate in the reverse direction in the lock cylinder 24;

the key 10 is rotated to a natural position with the lock cylinder 24;

the return means stops, the tongue 211 springs out under the action of the spring force, and the rest of the tongue 213 remains retracted.

Scene II: door closing

The door closing operation occurs after the door opening operation; since the opening operation has been discussed above, this section only discusses the operation after the door panel 20 is opened.

As shown in fig. 24, when the user closes the door, the latch 211 is temporarily retracted by the pressing force of the door frame 23; when the door is fully closed, the tongue 211 is spring-loaded to re-extend into the tongue groove 25 in the door frame 23.

During this portion of the closing operation, the other tongue 213 than the tongue 211 is kept in the retracted state.

Scene III: locking device

The locking operation occurs after the door is closed, which may involve multiple actions of the return means. This section will be described starting from the door opening operation.

Specifically, referring to fig. 25, the flow of the locking operation may be described as:

the motor 120 is driven to rotate reversely, so that the key transmission mechanism 100 drives the key 10 to rotate reversely;

the key 10 is rotated to a natural position with the lock cylinder 24;

the return device stops working, the inclined tongue 211 pops up, and the rest square tongue 213 is still kept in a retracted state;

The door is closed, and the latch 211 is temporarily retracted by the pressing force of the door frame 23;

when the door is fully closed, the tongue 211 re-extends into the tongue slot 25 in the door frame 23;

the lock button 31 is pressed, and the processing unit controls the motor 120 to rotate in a second direction opposite to the first direction, so that the key transmission mechanism 100 is driven to rotate the key 10 in the lock cylinder 24;

when the lock core 24 rotates to a locking position in which the lock core cannot rotate continuously, all the square tongues 213 except the inclined tongues 211 extend into the lock tongue grooves 25 in the door frame 23;

the processing unit judges that the lock cylinder 24 rotates to the locking position and controls the return device to work;

the key 10 is rotated to a natural position with the lock cylinder 24.

This design, which triggers the return device to operate by determining whether the lock cylinder 24 is rotated to the unlocked or locked position, has drawbacks. This is because when the lock cylinder 24 moves to the unlocking or locking position where it cannot be rotated further, the key 10 has a tendency to rotate due to the drive of the key transmission mechanism 100 on the one hand; on the other hand, however, the key 10 cannot perform rotational movement due to the structural design of the intelligent unlocking device 10 itself; thus, the torque force acting on the key 10 may cause some damage to the key 10 itself.

For this purpose, the intelligent lock opener 10 of the present invention is also provided with an autonomous learning module. The autonomous learning module is configured to: when the key 10 drives the lock cylinder 24 to rotate to the moment when the unlocking position or the locking position is about to be reached, the lock tongue 21 is controlled to move so as to realize the operation that the door is opened or the door is locked; and after a few seconds of the door being opened or locked, the return means are controlled to operate.

In one possible embodiment, the autonomous learning module may record the number of revolutions of the key 10 with the lock cylinder 24 when the key transmission mechanism 100 rotates the key 10 to the unlocking position during the unlocking process; alternatively, the autonomous learning module may record the number of revolutions of the key 10 with the lock cylinder 24 as the key transmission mechanism 100 rotates the key 10 to the locked position during the locking process. Therefore, the autonomous learning module can control the movement of the lock tongue 21 when the lock cylinder 24 is about to reach the unlocking position or the locking position, so as to achieve the aim of unlocking or locking.

It should be noted that if the user opens the door by using the mechanical key 12 on the outside of the door, the return of the lock cylinder 24 to the natural position will not rely on the return means. This is because when the user needs to pull out the key 12 to complete the door opening operation, he must manually rotate the key 12 to the natural position, and the key 12 can be pulled out.

Fig. 26 shows a positional relationship between the driving member 103' and the gear portion 107' and between the key 10' and the key locker 101' in the key transmission mechanism 100' according to another embodiment of the present invention. In the present embodiment, as shown in fig. 26a, the driving member 103 'is tightly engaged with the gear portion 107' in the second direction Y and the first direction X, and there is no relative movement therebetween. As shown in fig. 26b, the key 10 'is movable in the second direction Y and the first direction X within the key locker 101'. For this reason, there is a gap between the key 10 'and the side wall of the key locker 101' in both the second direction Y and the first direction X.

In order to ensure that the key 10 'can drive the lock cylinder 24 to rotate to the natural position under the action of the return device, the gap p between the key 10' and the side wall of the accommodating space 106 in the second direction Y should not be too large and should be controlled within 0.3 mm. That is, in the second direction Y, the movable dimension of the key 10' is 0.6mm.

The foregoing description of the embodiments of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. 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 terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or the technical improvement in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A key transmission mechanism is used for matching with a key and is characterized in that,

the key transmission mechanism is also used for being arranged on a rear panel inside the door plate, and,

the key transmission mechanism includes:

a drive assembly including a key cartridge for receiving the key, the key cartridge having an opening for receiving the key, a stop surface for abutting the key;

the transmission piece is in transmission connection with the motor so as to drive the driving assembly to rotate; the transmission piece is provided with a through hole, and the through hole is used for accommodating the driving assembly;

defining a space on the key bin for accommodating the key as an accommodating space;

the key extends into the accommodating space from the opening, and the opening is arranged closer to the lock cylinder than the stop surface.

2. The key transmission mechanism as defined in claim 1, wherein said key housing is provided with said opening at one end and said stop surface at the other end along the direction of the insertion of said key.

3. The key transmission mechanism of claim 1, wherein said drive assembly further comprises a drive member engaged with said key fob; the driving piece is connected with the transmission piece, and the driving piece drives the key bin to rotate under the driving of the transmission piece.

4. A key transmission mechanism according to claim 3, wherein said driving member is directly driven by said transmission member.

5. A key transmission mechanism according to claim 3, wherein the driving member is provided with a projection, and the driving member is provided with a recess, and the movement of the driving member relative to the driving member is limited in a longitudinal direction of the key by engagement of the projection with the recess.

6. A key transmission mechanism according to claim 3, wherein a reset means is provided between the drive member and the transmission member, the reset means providing a force for movement of the key towards the lock cylinder.

7. The key transmission mechanism as defined in claim 6, wherein said reset means includes a magnet provided on one of said driving member and said transmission member, and an attracting member provided on the other of said driving member and said transmission member, said attracting member being attracted by said magnet.

8. A key transmission mechanism as claimed in claim 3, wherein the key transmission mechanism is provided with a one-way stop device configured to: only the key cartridge is allowed to move relative to the driver in a direction along the length of the key, approaching the lock cylinder.

9. A key transmission mechanism as defined in claim 3, wherein said key transmission mechanism includes at least 2 key cartridges, said 2 key cartridges having receiving spaces different in size in a thickness direction of said key, said at least 2 key cartridges alternatively cooperating with said driving member.

10. The key transmission mechanism as defined in claim 1, wherein a width direction of the key is defined as a first direction, and a thickness direction of the key is defined as a second direction; the key is provided with an offset space in the through hole along the first direction and the second direction; along at least one direction of the first direction and the second direction, the key has an offset space in the accommodating space.

11. The key transmission mechanism of claim 10, wherein the key has an offset space in the receiving space along one of the first direction and the second direction; along the other direction of the first direction and the second direction, the driving component is provided with an offset space in the through hole.

12. The key transmission mechanism of claim 11, wherein said key has an offset space in said receiving space along said first direction; the driving component is provided with an offset space along the second direction at the through hole.

13. The key transmission mechanism of claim 10, wherein the key has an offset space in the receiving space along the first direction and the second direction.

14. The key transmission mechanism of claim 13, wherein there is no relative movement between the drive assembly and the transmission member along both the first and second directions.

15. The key transmission mechanism of claim 10, wherein the movable dimension of the key in the receiving space is less than 0.6mm in the second direction.

16. A key transmission mechanism is used for matching with a key and a door plate and is characterized in that,

a rear panel is arranged on the inner side of the door plate, a front panel is arranged on the outer side of the door plate, the key transmission mechanism is arranged on the rear panel, and,

the key transmission mechanism includes:

a drive assembly including a key compartment for receiving a key; the key bin is provided with an opening for receiving the key and a stop surface for abutting against the key;

the transmission piece is in transmission connection with the motor so as to drive the driving assembly to rotate; the transmission piece is provided with a through hole; the through hole is used for accommodating the driving component;

Defining a space on the key bin for accommodating the key as an accommodating space, wherein the direction of inserting the key into the lock cylinder is an inserting direction;

the key extends into the accommodating space from the opening, and the opening is arranged closer to the lock cylinder than the stop surface; and the extending direction of the key is opposite to the inserting direction.

17. A key transmission mechanism is used for matching with a key and is characterized in that,

the key transmission mechanism includes:

the driving assembly comprises a containing part and a stopping part which is in contact with the containing part; the accommodating part is provided with an opening for receiving the key, and the stopping part is provided with a stopping surface for abutting against the key;

defining a space on the accommodating part for accommodating the key as an accommodating space;

18. A method of installing a key transmission mechanism, the key transmission mechanism comprising:

the driving assembly comprises a key bin for accommodating keys and a driving piece; the key bin has an opening for receiving the key, a stop surface for abutting the key;

the method for installing the key transmission mechanism is characterized by comprising the following steps:

a1: extending the key from the opening into the key compartment and causing the key to abut the stop surface;

a2: connecting the driving assembly with the transmission piece;

a3: and the key bin is applied with force, and drives the key to move relative to the transmission piece until the key is inserted into the lock cylinder to a specific position.

19. The method of installing a key transmission mechanism of claim 18, wherein method A2 further comprises:

mating the key fob with the drive;

and connecting the driving piece with the transmission piece.

20. The method of installing a key transmission of claim 18: characterized in that the method A2 further comprises:

Connecting the driving piece with the transmission piece;

and matching the key bin with the driving piece.

21. A method of installing a key transmission mechanism, the key transmission mechanism comprising:

b1: inserting the key into the lock cylinder through the through hole, and enabling the key to move to a specific position;

b2: connecting the driving assembly with the transmission piece;

b3: the key magazine is forced to move relative to the transmission member and eventually bring the stop surface into abutment with the key.