CN215407952U

CN215407952U - Spring bolt drive arrangement and lock

Info

Publication number: CN215407952U
Application number: CN202121481828.5U
Authority: CN
Inventors: 应赤
Original assignee: Zhejiang New Juli Security Technology Co ltd
Current assignee: Zhejiang New Juli Security Technology Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2022-01-04
Anticipated expiration: 2031-06-30

Abstract

The utility model relates to a bolt driving device and a door lock. The lock bolt driving device comprises a first lock bolt and a second lock bolt, the first lock bolt and the second lock bolt are in a first state, a second state and a third state, and the first lock bolt and the second lock bolt are connected to the lock cylinder thumb wheel in a follow-up manner; the spring bolt driving device also comprises a driving piece, a first stirring piece and a second stirring piece, wherein the first stirring piece and the second stirring piece are overlapped, the first stirring piece is linked with the first spring bolt and is provided with a first matching part, and the second stirring piece is linked with the second spring bolt and is provided with a second matching part; the driving piece can rotate positively or reversely relative to the shell assembly and is provided with a driving part; on a radial plane of the driving piece, projections of the first matching portion and the second matching portion form an overlapping area, and the projection of the driving portion is located in the overlapping area.

Description

Spring bolt drive arrangement and lock

Technical Field

The utility model relates to the technical field of locks, in particular to a lock tongue driving device and a door lock.

Background

In the field of door locks, electronic locks that lock in an electrically controlled manner are becoming more and more popular. Although the electronic lock can save the inconvenience of carrying a key at any time by a user and has the advantage of quick locking, the electronic lock also has the problems of poor reliability, such as unexpected faults of an electric control driving system, power transmission failure interruption, short service life, electric quantity exhaustion and the like. These problems may cause the user to fail to unlock the door lock in an emergency, causing great inconvenience to the user. Therefore, it is an urgent need in the art to provide a door lock that can be locked in an emergency situation where an electrical control failure occurs.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a lock tongue driving device, which is installed on a housing assembly, and includes a first lock tongue, a second lock tongue, a lock cylinder dial wheel, a driving member, a first dial member, a second dial member, a lock cylinder linkage mechanism, and a third dial member;

the first spring bolt is connected with the lock cylinder linkage mechanism in a follow-up manner, the first shifting piece and the second shifting piece are overlapped, the first shifting piece is movably connected with the lock cylinder linkage mechanism and is linked with the first spring bolt through the lock cylinder linkage mechanism, and the first shifting piece is provided with a first matching part;

the second shifting piece is connected with the third shifting piece in a follow-up manner, the second lock tongue is linked, and the second shifting piece is provided with a second matching part;

the driving piece can rotate positively or reversely relative to the shell assembly and is provided with a driving part;

on a radial plane of the driving piece, projections of the first matching part and the second matching part form an overlapping area, and the projection of the driving part is positioned in the overlapping area; the lock cylinder thumb wheel is rotatably arranged on the shell component;

the driving piece rotates forwards in the third state and is matched with the first matching part through the driving part to drive the first poking piece to link the first lock tongue to extend out of the shell assembly, so that the lock tongue driving device is switched to the first state;

the driving piece reversely rotates in the first state and is matched with the first matching part and the second matching part through the driving part to drive the first stirring piece and the second stirring piece to respectively link the first lock bolt and the second lock bolt to retract into the shell assembly, so that the lock bolt driving device is switched to the second state;

the driving piece reversely rotates in the third state and is matched with the second matching part through the driving part to drive the second toggle piece to link the second lock bolt to retract into the shell assembly, so that the lock bolt driving device is switched to the second state;

the lock cylinder shifting wheel rotates forwards in the third state, and drives the first lock tongue to extend out of the shell assembly through the lock cylinder linkage mechanism, so that the lock tongue driving device is switched to the first state;

the lock cylinder shifting wheel reversely rotates in the first state, and drives the first lock tongue to retract to the shell assembly through the lock cylinder linkage mechanism, so that the lock tongue driving device is switched to the third state;

the lock cylinder shifting wheel reversely rotates in the third state, and drives the second lock bolt to retract into the shell assembly through the third shifting piece, so that the lock bolt driving device is switched to the second state.

The lock tongue driving device integrates electric control driving and mechanical driving based on a key. The lock can be switched between an unlocking state and a locking state by driving the lock core thumb wheel by a key and driving the first lock tongue to do telescopic motion by the lock core thumb wheel, and can also be switched between the opening and closing state and the unlocking and locking state by outputting power to the driving piece by the driving source.

In addition, the movement and position states of the lock tongue driving device are easy and labor-saving to change, the movement process is simple and the operation is reliable, the connection and the matching of all the parts are stable, and the response to the power input of the driving source is sensitive and rapid.

In addition, the electric control driving mode and the mechanical driving mode based on the key are relatively independent. For the door lock applying the spring bolt driving device, even if the electric control driving function of the door lock is failed accidentally, the whole door lock cannot be scrapped, and the door lock can be used as a mechanical lock to be continuously used without being incapable of being unlocked in emergency.

In one embodiment, the first toggle piece and the second toggle piece are respectively sleeved with the driving piece along the axial direction, the first matching part comprises a first idle groove arranged on the first toggle piece, and the second matching part comprises a second idle groove arranged on the second toggle piece; the driving part penetrates through the first idle groove and the second idle groove and comprises a first abutting surface and a second abutting surface, the first abutting surface is used for abutting against the inner wall of the first idle groove, and the second abutting surface is used for abutting against the inner wall of the first idle groove and/or the inner wall of the second idle groove.

Due to the arrangement, the lock tongue driving device is high in transmission efficiency and compact in structure, and is beneficial to saving the space inside the door lock; under the butt cooperation of drive division, first stirring piece and second stir the piece and drive first idle groove and second idle groove respectively and rotate around the axis of driving piece is coaxial, is favorable to guaranteeing the first consistency of stirring the piece and second and stirring the orbit for the driving piece rotation angle displacement, even spring bolt drive arrangement moves many times, first stirring piece and second stir the piece and still can drive first spring bolt or second spring bolt accurately reachs the preset position under the corresponding state.

In one embodiment, the projections of the first idle groove and the second idle groove on the radial plane of the driving member are both fan-shaped rings with the same radius and are concentrically arranged; and/or the driving part comprises a limiting step, the limiting step is abutted against the first stirring part or the second stirring part, and the limiting step is used for limiting the axial relative arrangement of the driving part and the first stirring part or the second stirring part.

According to the arrangement, the first shifting piece and the second shifting piece are limited in other freedom degrees of movement except for relative rotation taking the axis of the driving piece as the center, so that the first shifting piece and the second shifting piece can be prevented from relative displacement in the radial direction; the arrangement of the limiting step further ensures that the first stirring piece and the second stirring piece are fixed in axial relative positions, so that the connection and matching reliability of each part of the lock tongue driving device can be improved.

In one embodiment, the lock cylinder linkage mechanism comprises a first transmission piece and a second transmission piece which are rotatably connected to the shell assembly, the first transmission piece is used for being in linkage fit with the lock cylinder thumb wheel, and the second transmission piece is movably connected with the first thumb piece; the first transmission piece comprises a first shifting part, the second transmission piece comprises a second shifting part, the first transmission piece is in follow-up connection with the second shifting part through the first shifting part, and the second transmission piece is in follow-up connection with the first lock tongue through the second shifting part and is used for driving the first lock tongue to stretch relative to the shell assembly; the first lock tongue is connected with the first stirring piece in a follow-up mode through the lock core linkage mechanism.

So set up, lock core link gear has simple structure, connect with the cooperation reliable, the durability is good, long service life's characteristic, lock core link gear is more sensitive to the power input response of lock core subassembly, and it is higher to pass power efficiency and stability, can overcome the long-term defect that appears blocking after using, the response delays, the kinetic resistance is big to avoid lock core link gear wearing and tearing or the motion that the poor assembly leads to between the component to become invalid.

In one embodiment, the first shifting member is rotatably connected to the housing assembly and is provided with a first transmission gear set, one end of the second transmission member, which is relatively close to the second shifting member, is provided with a second transmission gear set engaged with the first transmission gear set, and the first shifting member and the second transmission member are linked through gear engagement.

Due to the arrangement, the structure of the lock tongue driving device is simpler, and the transmission precision is higher; the first shifting piece and the second transmission piece are connected in a follow-up mode through tooth meshing, the response sensitivity of the second transmission piece to the power input of the first shifting piece is improved, the clearance of relative movement of the first shifting piece and the second shifting piece is also favorably eliminated, and the transmission matching efficiency of the lock tongue driving device and the lock cylinder linkage mechanism is improved.

In one embodiment, one end of the third toggle piece extends towards the lock cylinder thumb wheel and can be in linkage fit with the lock cylinder thumb wheel, and the other end of the third toggle piece is in driving connection with the second toggle piece; in a third state, the lock cylinder thumb wheel can rotate reversely and push the third toggle piece, so that the third toggle piece is linked with the second lock bolt to retract into the shell assembly.

According to the arrangement, the second lock tongue is connected with the lock cylinder thumb wheel in a follow-up manner through the third toggle piece, and the third toggle piece allows a user to use a key to push the third toggle piece to be relatively far away from one end of the second toggle piece, so that the second toggle piece is linked to complete the opening action of the door lock; even if the matching of the driving piece and the second poking piece fails, the user can still use the key to unlock the door lock in an emergency state.

In one embodiment, a strip-shaped hole is formed in one end, close to the lock cylinder thumb wheel, of the third toggle piece, and a second convex column is fixedly arranged on the first lock tongue and penetrates through the strip-shaped hole to be in sliding fit with the inner wall of the strip-shaped hole.

According to the arrangement, the third toggle piece can be always in rotating connection with the second toggle piece and can be always in sliding connection with the first lock tongue, and the connection reliability of the third toggle piece is improved.

In one embodiment, the second toggle member includes a second force transmission pin, one end of the third toggle member, which is relatively close to the second toggle member, is provided with a sleeve hole, and the second force transmission pin penetrates through the sleeve hole.

In one embodiment, the deadbolt actuation assembly further includes a plug assembly fixedly mounted to the housing assembly, the plug assembly including a plug wheel.

The utility model also provides a door lock, which comprises a shell assembly and any one of the bolt driving devices, wherein the bolt driving device is rotatably arranged relative to the shell assembly, and the first bolt and the second bolt are slidably arranged on the shell assembly.

Drawings

FIG. 1 is a schematic perspective view of a door lock according to an embodiment of the present invention;

FIG. 2 is an exploded view of the door lock shown in FIG. 1;

FIG. 3 is a perspective view of the door latch of FIG. 1 from another perspective;

FIG. 4 is a schematic structural view of a first toggle member according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a second toggle member according to an embodiment of the present invention;

FIG. 6 is a first schematic projection view of the first toggle member and the second toggle member on a radial plane of the driving member according to an embodiment of the present invention;

FIG. 7 is a second schematic projection view of the first toggle member and the second toggle member on the radial plane of the driving member according to the embodiment of the present invention;

FIG. 8 is a schematic structural diagram of a driving member according to an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a first transmission member according to an embodiment of the present invention;

FIG. 10 is a schematic view of a first portion of a second transmission member according to an embodiment of the present invention;

FIG. 11 is a second partial schematic view of the second transmission member according to an embodiment of the present invention;

FIG. 12 is a schematic structural view of a second elastic member according to an embodiment of the present invention;

FIG. 13 is a schematic view of a portion of the door latch of FIG. 1;

fig. 14 is a schematic structural diagram of a first lock tongue according to an embodiment of the present invention;

fig. 15 is a front view of the first locking bolt of fig. 14;

FIG. 16 is a schematic view of a door lock in a third state according to an embodiment of the present invention;

FIG. 17 is a schematic view of a door latch according to an embodiment of the present invention in a first state;

FIG. 18 is a schematic view of a door lock in a second state according to an embodiment of the present invention.

Description of reference numerals:

100. a tongue drive device; 101. a gasket; 10. a first bolt; 11. a first elastic member; 12. a movable blocking frame; 13. a second convex column; 14. a second elastic member; 141. a first torsion spring trepan boring; 142. a second torsion spring trepan boring; 143. a third torsion spring trepan boring; 144. a first resilient arm; 145. a second resilient arm; 15. a poking groove; 151. a first toggle section; 1511. a first mating area; 1512. a second mating area; 152. a first stop segment; 153. a second stop segment; 16. a chute; 17. a mounting frame; 20. a second bolt; 30. a drive member; 31. a drive section; 32. a handle mating hole; 33. a limiting step; 40. a first toggle piece; 401. an overlap region; 41. a first empty slot; 411. a first side wall; 412. a second side wall; 42. a first trepan boring; 44. abutting the bump; 45. a first circumferential bump; 46. a first set of drive teeth; 50. a second toggle piece; 51. a second empty slot; 511. a third side wall; 512. a fourth side wall; 52. a second trepan boring; 53. a second force transfer pin; 54. a push rod; 55. a second circumferential projection; 60. a first transmission member; 61. a first toggle part; 611. a first pusher dog; 612. a second pusher dog; 613. a first gap; 64. a fifth toggle part; 641. a third pusher dog; 642. a fourth pusher dog; 643. a second gap; 70. a second transmission member; 71. a second toggle part; 72. a second set of drive teeth; 73. a first force transmission section; 701. a first follower element; 702. a second follower element; 703. a card slot; 704. an elastic member connecting post; 90. a third toggle piece; 91. a strip-shaped hole; 200. a door lock; 201. a first housing; 2011. a bolt through hole; 202. a second housing; 203. a driving member mounting hole; 204. a lock cylinder mounting hole; 211. a first pivot member; 212. a second pivot member; 214. a fourth pivot member; 215. and fixing the blocking frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, fig. 1 is a schematic perspective view of a door lock 200 according to an embodiment of the present invention; FIG. 2 is an exploded view of the door lock 200 shown in FIG. 1; fig. 3 is a perspective view of the door lock 200 shown in fig. 1 from another perspective.

The present invention provides a deadbolt actuation assembly 100 for a door lock 200. The tongue driving apparatus 100 is installed in the housing assembly, and includes a first tongue 10 and a second tongue 20 slidably connected to the housing assembly, and a plug assembly (not shown) fixedly installed in the housing assembly, wherein the plug assembly includes a plug wheel rotatable relative to the housing assembly, and the plug wheel is capable of rotating relative to the housing assembly under the driving of a key.

In this embodiment, the first bolt 10 serves as a main bolt of the door lock 200 for locking and unlocking the door and the doorframe, and the second bolt 20 serves as a latch bolt of the door lock 200 for opening and closing the door and the doorframe.

The housing assembly includes a first housing 201 and a second housing 202 covering each other, and the latch bolt driving device 100 is installed in a cavity formed by the first housing 201 and the second housing 202. The first casing 201 and the second casing 202 have both been provided with a lock cylinder mounting hole 204 and a driving member mounting hole 203, the lock cylinder mounting hole 204 is used for the lock cylinder assembly to enter the casing assembly, and the driving member mounting hole 203 is used for the driving member 30 to wear through.

It is understood that in other embodiments, the key cylinder mounting hole 204 and the driver mounting hole 203 may be opened only in the first housing 201 or the second housing 202.

In this embodiment the plug assembly is adapted to be in a follower engagement with a key and the driver 30 is adapted to be connected to an electrically controlled drive source. In other words, the plug assembly allows the user to manually open or close the door lock 200, and the driving member 30 serves as a power output member of the door lock 200 under the electrically controlled driving, so that the deadbolt driving mechanism 100 can make the door lock 200 have both the functions of a mechanical lock and an electronic lock.

It should be noted that the following connection or following cooperation referred to in the present invention means that, when the former is connected or matched with the latter, the former will move under the drive of the latter, thereby forming the effect that the former moves simultaneously with the movement of the latter. For example, the above-mentioned lock core assembly and key follow-up cooperation means: when the lock core component is movably matched with the key, the key drives the lock core component to move once moving.

Further, the side wall of the second housing 202 is further provided with a plurality of bolt through holes 2011 for allowing the first bolt 10 and the second bolt 20 to pass therethrough, so that the first bolt 10 and the second bolt 20 extend out of or retract into the housing assembly.

In other embodiments, the bolt through hole may also be opened in the sidewall of the first casing 201, or the first casing 201 and the second casing 202 cover and then jointly enclose to form a plurality of bolt through holes.

First spring bolt 10 includes mutual fixed mounting bracket 17 and a plurality of cylindrical first grafting portion (not numbered in the figure), and first spring bolt 10 passes through mounting bracket 17 and slides and set up in the casing subassembly, and a plurality of first grafting portions are connected in mounting bracket 17's one end side by side, and corresponding with a plurality of spring bolt through-holes 2011. Under the forward driving of the latch bolt driving device 100, the first insertion part extends out of the housing assembly, or under the reverse driving of the latch bolt driving device 100, the first insertion part retracts into the housing assembly.

The second locking bolt 20 includes a second insertion part (not numbered in the figure), a sliding shaft (not numbered in the figure), a movable blocking frame 12 and a first elastic member 11 connecting the sliding shaft and the housing assembly.

The second grafting portion sets firmly in the one end of the axle that slides, and the axle that slides and casing subassembly sliding fit, first elastic component 11 have the trend that drives the axle axial motion that slides so that the second grafting portion stretches out spring bolt through-hole 2011. When no external force acts on the second bolt 20, the second insertion part keeps a state of extending out of the shell assembly; the movable blocking frame 12 is fixedly connected to the outer wall of the sliding shaft and extends along the radial direction of the sliding shaft to form a pushing surface.

Preferably, the first elastic element 11 is a telescopic spring sleeved on the sliding shaft, two ends of the first elastic element 11 respectively abut against the second housing 202 and a step surface on the sliding shaft, and an axial direction of the first elastic element 11 is consistent with a telescopic direction of the second bolt 20.

Please refer to fig. 16 to 18. FIG. 16 is a schematic view of a door lock 200 in a third state according to an embodiment of the present invention;

FIG. 17 is a schematic view of a door lock 200 in a first state according to an embodiment of the present invention; fig. 18 is a schematic view of the door lock 200 in the second state according to an embodiment of the present invention.

The deadbolt actuation assembly 100 has a first state, a second state, and a third state. In the first state, the first bolt 10 and the second bolt 20 both extend out of the housing assembly, as shown in fig. 17; in the second state, the first bolt 10 and the second bolt 20 are both retracted into the housing assembly, as shown in fig. 18; in the third state, the first bolt 10 is retracted relative to the housing assembly and the second bolt 20 is extended out of the housing assembly, as shown in fig. 16.

The first state, the second state and the third state correspond to the mutual locking state, the door opening state and the door closing state of the door lock 200 and the door respectively.

In view of this, the latch bolt driving apparatus 100 further includes a driving member 30, a first toggle member 40, a second toggle member 50, a lock cylinder linkage mechanism and a third toggle member 90, wherein the lock cylinder linkage mechanism and the third toggle member 90 are both movably engaged with the lock cylinder dial, and the first latch bolt 10 is connected with the lock cylinder linkage mechanism in a follow-up manner.

The driving piece 30 penetrates through the driving piece mounting hole 203, is used for connecting a driving source and can rotate relative to the shell assembly; the first toggle member 40 and the second toggle member 50 are stacked along the axial direction of the driving member 30 and are disposed coaxially with the driving member 30, the first toggle member 40 can rotate relative to the driving member 30 within a first preset range, and the second toggle member 50 can rotate relative to the driving member 30 within a second preset range.

The first toggle piece 40 is movably connected with the lock cylinder linkage mechanism and can be linked with the first lock tongue 10 through the lock cylinder linkage mechanism under the rotation of the lock cylinder thumb wheel; the second toggle piece 50 is connected with the third toggle piece 90 in a follow-up manner, and can be used for linking the second bolt 20 through the second toggle piece 50 under the rotation of the lock cylinder toggle wheel.

The first toggle piece 40 and the second toggle piece 50 also have a first mating portion and a second mating portion, respectively. The driving member 30 can rotate relative to the first toggle member 40 within a first preset range, and simultaneously, the second toggle member 50 is linked by abutting against the second matching portion, that is, the driving member 30 rotates relative to the first toggle member 40, and simultaneously, is relatively fixed with the second toggle member 50 and synchronously rotates.

The driving member 30 can also rotate relative to the second toggle member 50 within a second preset range, and simultaneously, the first toggle member 40 is linked by abutting against the first matching portion, that is, the driving member 30 rotates relative to the second toggle member 50, and simultaneously, is relatively fixed with and synchronously rotates with the first toggle member 40.

When a user rotates the lock cylinder shifting wheel by using a key, the lock cylinder shifting wheel can also drive the lock cylinder linkage mechanism to move, so that the first lock tongue 10 is linked to extend out of or retract into the shell assembly; the second bolt 20 is connected with the third toggle piece 90 in a follow-up manner, when a user uses a key to rotate the lock cylinder toggle wheel, the lock cylinder toggle wheel can also drive the third toggle piece 90 to move, the third toggle piece 90 simultaneously drives the second toggle piece 50 to rotate, and then the second bolt 20 is linked by the second toggle piece 50 to retract into the housing assembly.

Because the first toggle piece 40 and the driving piece 30 have a degree of freedom of relative rotation within a first preset range, and the second toggle piece 50 and the driving piece 30 have a degree of freedom of relative rotation within a second preset range; when the user uses the key to rotate the lock cylinder thumb wheel, no matter the lock cylinder linkage mechanism is driven or the third toggle piece is driven to move, the influence of the connection state of the driving piece 30 can be avoided.

In other words, even if the driver 30 is removed, the user is not affected to turn the cylinder paddle with the key to unlock or lock.

Please refer to fig. 4 to 8. FIG. 4 is a schematic structural diagram of the first toggle member 40 according to an embodiment of the present invention; FIG. 5 is a schematic structural view of a second toggle element 50 according to an embodiment of the present invention; fig. 6 is a first schematic projection view of the first toggle member 40 and the second toggle member 50 on a radial plane of the driving member 30 according to an embodiment of the present invention; fig. 7 is a second schematic projection view of the first toggle member 40 and the second toggle member 50 on the radial plane of the driving member 30 according to the embodiment of the present invention; fig. 8 is a schematic structural diagram of the driving member 30 according to an embodiment of the utility model.

Specifically, in the present embodiment, the driving member 30 has a driving portion 31 for abutting against the first engaging portion and the second engaging portion, and is opened with a handle engaging hole 32 centered on the axis, and the handle engaging hole 32 is used for fixedly connecting the driving source; the first toggle element 40 and the second toggle element 50 are both provided with a first sleeve hole 42 and a second sleeve hole 52 for axially sleeving the driving element 30.

The first toggle piece 40 is movably connected with the lock cylinder linkage mechanism in a tooth meshing manner; the outer peripheral wall of the second toggle piece 50 is fixedly provided with a push rod 54, the push rod 54 extends close to the second lock tongue 20, and the second toggle piece 50 can abut against the abutting surface of the movable blocking frame 12 through the push rod 54 to drive the second lock tongue 20 to overcome the elastic action of the first elastic piece 11, so that the second lock tongue 20 retracts into the housing assembly.

Further, in the present embodiment, the outer wall of the first toggle member 40 is provided with a first transmission gear set 46, and an end of the second transmission member 70 relatively close to the second toggle member 50 is provided with a second transmission gear set 72 engaged with the first transmission gear set 46.

With the arrangement, the second transmission member 70 is connected with the first toggle member 40 in a tooth meshing manner, so that the response sensitivity of the second transmission member 70 to the power input of the first toggle member 40 is improved, the clearance of the relative movement of the first toggle member and the second toggle member is eliminated, and the transmission matching efficiency of the bolt driving device 100 and the lock cylinder linkage mechanism is improved; in addition, second transmission element 70 and first toggle element 40 are engaged by teeth, so that bolt driving device 100 can be assembled more conveniently, which is beneficial to reducing the production cost of door lock 200.

Further, in this embodiment, one end of the third toggle member 90 extends toward the cylinder mounting hole 204/cylinder wheel and is used for the cylinder wheel linkage, and the other end is connected with the second toggle member 50 in a follow-up manner. In the third state as shown in fig. 16, the third toggle member 90 is tangent to the projection of the lock cylinder through hole on the plane perpendicular to the axial direction of the lock cylinder through hole, the user uses the key to clockwise drive the lock cylinder toggle wheel to rotate, the lock cylinder toggle wheel drives the third toggle member 90 to link the second toggle member 50, the second toggle member 50 rotates clockwise, and the push rod 54 pushes the movable blocking frame 12 until the second latch bolt 20 retracts into the housing assembly, and at this time, the state of the door lock 200 is as shown in fig. 18.

So set up, second spring bolt 20 is connected in the lock core thumb wheel through third toggle 90 follow-up for second spring bolt 20 has obtained two independent power routes, drive the motion of third toggle 90 through the lock core thumb wheel respectively, third toggle 90 linkage second toggle 50 and drive the first power route that second spring bolt 20 withdraws back to and through the driving source to driving piece 30 output power, driving piece 30 drives second toggle 50 and links the second power route that second spring bolt 20 withdraws back. Even if the following engagement of the driving member 30 and the second toggle member 50 fails, the user can still use the key to retract the second locking bolt 20 into the housing assembly in an emergency state, thereby smoothly unlocking the lock.

Specifically, in this embodiment, a strip-shaped hole 91 is formed in one end of the third toggle member 90, which is relatively close to the lock cylinder toggle wheel, the first lock tongue 10 further includes a second convex pillar 13 fixedly disposed on the mounting bracket 17, and the second convex pillar 13 is inserted into the strip-shaped hole 91 and is in sliding fit with the inner wall of the strip-shaped hole 91; the second toggle piece 50 is further fixedly provided with a second force transmission pin 53, one end of the third toggle piece 90, which is relatively far away from the lock cylinder toggle wheel, is provided with a sleeving hole for sleeving the second force transmission pin 53, and the second force transmission pin 53 is in running fit with the inner wall of the sleeving hole.

With such an arrangement, the third toggle member 90 can always keep a rotational connection with the second toggle member 50 and always keep a sliding connection with the first latch tongue 10, thereby improving the connection reliability of the third toggle member 90.

The lock cylinder linkage mechanism is used for realizing the driving connection between the driving piece 30 and the first lock tongue 10 and the driving connection between the lock cylinder thumb wheel and the first lock tongue 10; the third toggle element 90 is used for realizing the driving connection between the cylinder toggle wheel and the second bolt 20, and the second toggle element 50 is used for realizing the driving connection between the driving element 30 and the second bolt 20.

The driver 30 is capable of forward or reverse rotation relative to the housing. Taking fig. 16 as an example, the driving member 30 is rotated in a forward direction, which means that the driving member 30 is rotated in a counterclockwise direction shown in fig. 16; the reverse rotation of the driving member 30 means that the driving member 30 rotates clockwise as viewed in fig. 16 and 17.

On the radial plane of the driving member 30, the projection of the first engaging portion and the second engaging portion forms an overlapping region 401, the driving portion 31 is located in the overlapping region 401, and since the first toggle member 40 and the second toggle member 50 are both capable of rotating relative to the driving member 30, the projection overlapping region 401 of the first engaging portion and the second engaging portion on the radial plane of the driving member 30 is variable.

The driving member 30 rotates forward in the third state as shown in fig. 16, and is in abutting engagement with the first engagement portion through the driving portion 31, so as to drive the first toggle member 40 to rotate counterclockwise as shown in fig. 16, and the first toggle member 40 drives the second transmission member 70 to rotate clockwise as shown in fig. 16, so as to link the first bolt 10 to extend out of the housing assembly, so that the first bolt 10 and the second bolt 20 are switched to the first state as shown in fig. 17; then, the driving member 30 rotates reversely in the first state, and is in simultaneous abutting engagement with the first engaging portion and the second engaging portion through the driving portion 31, so as to drive the first toggle member 40 and the second toggle member 50 to rotate simultaneously in the clockwise direction shown in fig. 17, at this time, the first toggle member 40 drives the second transmission member 70 to rotate in the counterclockwise direction shown in fig. 17, so as to link the first lock tongue 10 to retract into the housing assembly, and the second toggle member 50 links the second lock tongue 20 to retract into the housing assembly through the push rod 54, so that the first lock tongue 10 and the second lock tongue 20 are switched to the second state shown in fig. 18.

And releasing the force applied to the driving member 30 after the first locking bolt 10 and the second locking bolt 20 are retracted into the housing assembly. Subsequently, under the action of the first elastic element 11, the second bolt 20 is pushed and drives the second bolt 20 to extend out of the second housing 202, while the first bolt 10 remains in the housing assembly. That is, after the first latch tongue 10 and the second latch tongue 20 are switched to the second state, the force applied to the driving member 30 is released, and the latch tongue driving device 100 is automatically switched to the third state by the first elastic member 11.

When the driving element 30 rotates in the reverse direction in the third state shown in fig. 16, the driving element 30 is in abutting engagement with the second engaging portion through the driving portion 31, and drives the second toggle element 50 to rotate clockwise as shown in fig. 16, and abuts against the movable blocking frame 12 through the push rod 54, and the second latch bolt 20 is linked to retract into the housing assembly, so that the first latch bolt 10 and the second latch bolt 20 are switched to the second state shown in fig. 18, in this process, the driving element 30 rotates relative to the first toggle element 40 within the first preset range, the driving element 30 does not work on the first toggle element 40, and therefore the first toggle element 40 does not drive the second transmission element 70 to rotate.

Specifically, in the present embodiment, the first engaging portion is a first idle groove 41 formed in the first toggle member 40, and the first idle groove 41 is formed in the inner wall of the first sleeve hole 42 and has a substantially fan-shaped annular shape; the second matching part is a second idle groove 51 arranged on the second toggle piece 50, the second idle groove 51 is arranged on the inner wall of the second sleeve hole 52, and the shape is approximately fan-shaped; the driving portion 31 is a rib fixedly disposed on the outer peripheral wall of the driving member 30, and the rib extends along the axial direction of the driving portion 31.

A plurality of first circumferential protrusions 45 and second circumferential protrusions 55 are respectively fixedly arranged on the inner walls of the first trepan boring 42 and the second trepan boring 52, each first circumferential protrusion 45 protrudes inwards along the radial direction of the first trepan boring 42, each second circumferential protrusion 55 protrudes inwards along the radial direction of the second trepan boring 52, the first empty groove 41 is formed between two adjacent first circumferential protrusions 45, and the second empty groove 51 is formed between two adjacent second circumferential protrusions 55. In the circumferential direction of the first trepan 42, the first idle groove 41 has a first side wall 411 and a second side wall 412 respectively; the second empty groove 51 has a third sidewall 511 and a fourth sidewall 512 in the circumferential direction of the second sleeve hole 52; the driving portion 31 has a first pushing surface and a second pushing surface which are arranged apart from each other in the circumferential direction of the driving member 30.

When the driving member 30 rotates forward in the third state, the driving portion 31 moves in the second idle groove 51 and is in fit and abutment with the first side wall 411 through the first pushing surface, so as to realize abutment and engagement with the first toggle member 40, and drive the first toggle member 40 to link the first lock tongue 10 to extend until the first insertion portion is exposed out of the housing assembly. In the radial plane of the drive member 30, the first side wall 411 coincides with the projection of the fourth side wall 512.

When the driving element 30 rotates in the first state in the opposite direction, the driving portion 31 first moves in the overlapping region 401, during which the driving element 30 rotates relative to the first toggle element 40 and the second toggle element 50, and the second pushing surface acts on the second side wall 412 and the third side wall 511 until the projection of the second side wall 412 and the third side wall 511 onto the radial plane of the driving element 30 coincide. Subsequently, the driving portion 31 continues to abut against the second side wall 412 and the third side wall 511 through the second pushing surface, so as to realize abutting cooperation with the first toggle member 40 and the second toggle member 50, and drive the first toggle member 40 and the second toggle member 50 to respectively link the first lock tongue 10 and the second lock tongue 20 to retract into the housing assembly. In this case, the projection of the second side wall 412 onto the radial plane of the drive element 30 coincides with the projection of the third side wall 511.

When the driving member 30 rotates reversely in the third state, the driving portion 31 moves in the first idle groove 41 and abuts against the third side wall 511 through the second pushing surface, so as to realize the abutting engagement with the second toggle member 50, and drive the second toggle member 50 to link the second latch bolt 20 to retract relative to the housing assembly until the second insertion portion enters the housing assembly. The third side wall 511 now coincides with the projection of the second side wall 412 in a radial plane of the drive member 30.

In this embodiment, the first preset range of the movement of the driving element 30 relative to the first toggle element 40 is a central angle range corresponding to the first idle slot 41; the second preset range of the driving member 30 moving relative to the second toggle member 50 is the central angle range corresponding to the second idle slot 51.

It is understood that in other embodiments, the driving element 30 does not need to penetrate through the first toggle element 40 and the second toggle element 50, as long as the driving element 30 is coaxially disposed with the first toggle element 40 and the second toggle element 50, and the first toggle element 40 and the second toggle element 50 can rotate within the first preset range or the second preset range relative to the driving element 30 respectively with the axis of the driving element 30 as the center; the first idle groove 41 and the second idle groove 51 do not have to be opened on the inner wall of the first sleeve hole 42 and the inner wall of the second sleeve hole 52, but they may be arc-shaped closed grooves as long as the first idle groove 41 and the second idle groove 51 are concentrically arranged and have an overlapping area 401 on the radial plane of the driving member 30, and the driving member 31 is allowed to enter the overlapping area 401.

Further, the first or second mating portion is not limited to the recess, and the driving portion 31 is not limited to the radial protrusion on the outer circumferential wall of the driving member 30. In other embodiments, the first and second engaging portions may be radial protrusions fixed on the inner walls of the first and

second holes

42 and 52, respectively; correspondingly, the driving portion 31 may also be a radial groove opened on the outer peripheral wall of the driving member 30, as long as the radial groove and the radial protrusion can respectively define a first preset range of relative rotation between the driving member 30 and the first toggle member 40, and a second preset range of relative rotation between the driving member 30 and the second toggle member 50.

In addition, as the first pushing surface and the second pushing surface are provided on the driving portion 31 along the circumferential direction of the driving member 30, in another embodiment, the driving portion 31 may be two protrusions protruding outward in the radial direction on the outer circumferential wall of the driving member 30, and is not limited to a single rib extending in the axial direction of the driving member 30 in this embodiment.

It should be noted that the driving source in the present invention refers to an electric control device, such as a motor, which is fixedly engaged with the driving member 30 and can output a driving force thereto. The motor output shaft can be fixedly connected in the handle mating hole 32 to drive the driving member 30 and the motor output shaft to synchronously rotate, and at this time, the door lock 200 is an electronic lock or a coded lock.

Preferably, the projections of the first idle groove 41 and the second idle groove 51 on the radial plane of the driving member 30 are fan-shaped rings with the same radius and arranged concentrically; the driving part 30 further comprises a limiting step 33, the limiting step 33 abuts against the first stirring part 40 or the second stirring part 50, and the limiting step 33 can limit the axial relative position of the driving part 30 and the first stirring part 40 or the second stirring part 50; in order to reduce the abrasion of the first toggle piece 40 and the second toggle piece 50 during relative rotation, gaskets 101 are further arranged between the first toggle piece 40 and the second toggle piece 50, and between the first toggle piece 40 or the second toggle piece 50 and the shell assembly.

Further, the housing assembly further includes a fixed blocking frame 215, and the fixed blocking frame 215 is fixedly disposed at a side facing the first housing 201 in the second housing 202. One end of the first elastic member 11 abuts against a step surface of a sliding shaft of the second bolt 20, and the other end abuts against the fixed stop frame 215; a movable gap is formed between the fixed blocking frame 215 and the movable blocking frame 12, and the push rod 54 of the second poking part 50 extends into the movable gap; an abutting projection 44 extending toward the fixed stopper 215 is fixedly provided on the outer peripheral wall of the first toggle member 40.

When deadbolt driver 100 switches from the third state to the second state, fixed catch 215 may abut against abutment tab 44 to limit rotation of first toggle 40; when the tongue drive device 100 is switched from the third state to the first state, the fixed catch 215 can abut against the push rod 54, and the second toggle member 50 is restricted from rotating.

Further, the tongue driving device 100 further includes a lock cylinder linkage mechanism, and the first toggle member 40 is connected with the first tongue 10 via the lock cylinder linkage mechanism in a follow-up manner.

The cylinder linkage includes a first transmission member 60 and a second transmission member 70 rotatably connected to the housing assembly. The first transmission piece 60 is in linkage fit with the lock cylinder shifting wheel and is used for bearing the forward output power or the reverse output power of the lock cylinder shifting wheel; the second transmission member 70 is configured to cooperate with the first transmission member 60 in a following manner and transmit the power of the cylinder wheel to the first transmission member 60 to the first bolt 10, so as to drive the first bolt 10 to extend out of the housing assembly in a forward direction or drive the first bolt 10 to retract into the housing assembly in a reverse direction.

Specifically, the first transmission member 60 includes a first toggle portion 61 and a fifth toggle portion 64, and the second transmission member 70 includes a second toggle portion 71. The first toggle part 61 is connected with the second transmission piece 70 in a follow-up manner, and the fifth toggle part 64 is used for matching with the lock cylinder dial wheel in a follow-up manner; the second transmission member 70 is connected with the first latch tongue 10 via a second toggle portion 71, and is used for driving the first latch tongue 10 to extend and retract relative to the housing assembly.

Please refer to fig. 9 to 15. FIG. 9 is a schematic structural diagram of the first transmission member 60 according to an embodiment of the present invention; FIG. 10 is a schematic view of a first portion of the second transmission member 70 according to an embodiment of the present invention; FIG. 11 is a second partial schematic structural view of the second transmission member 70 according to an embodiment of the present invention; FIG. 12 is a schematic structural view of a second elastic member according to an embodiment of the present invention; FIG. 13 is a schematic view of a portion of the door lock 200 shown in FIG. 1; fig. 14 is a schematic structural diagram of the first lock tongue 10 according to an embodiment of the present invention; fig. 15 is a front view of first locking bolt 10 shown in fig. 14.

Specifically, in the present embodiment, the second casing 202 has a first pivot 211 and a second pivot 212 fixed therein, the second transmission member 70 is sleeved on the first pivot 211 to be rotatably connected to the second casing 202, and the first transmission member 60 is sleeved on the second pivot 212 to be rotatably connected to the second casing 202. The first toggle part 61 comprises a first toggle claw 611 and a second toggle claw 612, and a first gap 613 is arranged between the first toggle claw 611 and the second toggle claw 612; the first transmission member 70 is fixedly provided with a first force transmission portion 73, and the first force transmission portion 73 is a columnar structure and is disposed through the first gap 613, and can abut against the first finger 611 or the second finger 612.

The fifth toggle part 64 includes a third toggle element 641 and a fourth toggle element 642, a second gap 643 is provided between the third toggle element 641 and the fourth toggle element 642, the shape of the second gap 643 is adapted to the shape of the key cylinder wheel for accommodating the key cylinder wheel, and the third toggle element 641 or the fourth toggle element 642 can abut against the key cylinder wheel.

When the lock cylinder thumb wheel rotates forward in the third state, the actuation process of the latch bolt driving device 100 is as follows: the key cylinder thumb wheel rotates counterclockwise as shown in fig. 16, abuts against and pushes the third finger 641, so as to output power to the first transmission piece 60 in a forward direction, and the first transmission piece 60 is driven to rotate around the second pivot joint 212 in the forward direction, that is, the first transmission piece 60 rotates counterclockwise as shown in fig. 16; then, the first transmission member 60 abuts against the first transmission portion 73 through the first finger 611, and drives the second transmission member 70 to rotate around the first pivot joint 211 in the forward direction, that is, the second transmission member 70 rotates clockwise in fig. 16; the second transmission member 70 then moves the mounting bracket 17 in a direction pointing to the left in fig. 16, so that the first latch tongue 10 extends out of the housing assembly, and the door lock 200 is in the state shown in fig. 17.

When the lock cylinder thumb wheel rotates reversely in the first state, the actuation process of the latch bolt driving device 100 is as follows: the key cylinder thumb wheel rotates clockwise as shown in fig. 17, abuts against the fourth finger 642, reversely outputs power to the first transmission piece 60, and drives the first transmission piece 60 to rotate reversely around the second pivot piece 212, that is, clockwise rotates corresponding to the first transmission piece 60 in fig. 17; then, the first transmission member 60 abuts against the first transmission portion 73 through the second finger 612, and reversely drives the second transmission member 70 to rotate around the first pivot joint 211, that is, to rotate counterclockwise corresponding to the second transmission member 70 in fig. 17; the second transmission member 70 then moves the mounting bracket 17 in the direction to the right in fig. 17, so that the first bolt 10 is retracted into the housing assembly, and the door lock 200 is in the condition shown in fig. 16.

When the lock cylinder thumb wheel rotates reversely in the third state, the actuation process of the latch bolt driving device 100 is as follows: the cylinder wheel rotates clockwise as shown in fig. 16, abuts against and pushes one end of the third toggle member 90 relatively far from the second toggle member 50, thereby applying upward power to the third toggle member 90 as shown in fig. 16. At this time, the third toggle element 90 applies a force to the second force-transmitting pin 53 on the second toggle element 50 to drive the second toggle element 50 to rotate clockwise as shown in fig. 16, and finally the second toggle element 50 drives the second latch bolt 20 to retract into the housing assembly through the push rod 54.

Preferably, the first finger 611, the second finger 612, the third finger 641 and the fourth finger 642 are integrally formed by forging, that is, the first transmission member 60 is a forging member. Due to the arrangement, the rigidity and the strength of the first pusher dog 611, the second pusher dog 612, the third pusher dog 641 and the fourth pusher dog 642 are higher, the force bearing performance is further improved, abrasion, deformation or strength damage is not easy to generate, and the force transmission performance and the service life of the lock cylinder linkage mechanism are favorably improved.

Please refer to fig. 14 to 17 again. Further, the first locking tongue 10 includes a first mating region 1511 and a second mating region 1512. Under the forward driving of the first transmission member 60, the second toggle portion 71 can abut against the first matching region 1511, and toggle the mounting frame 17 according to the direction pointing to the left in fig. 16, so that the first latch tongue 10 extends out of the housing assembly; alternatively, under the reverse driving of the first transmission member 60, the second toggle portion 71 can abut against the second matching area 1512, and toggle the mounting frame 17 according to the direction pointing to the right in fig. 17, so that the first lock tongue 10 retracts into the housing assembly.

Specifically, in the present embodiment, the mounting frame 17 is provided with a toggle groove 15, and the shape of the toggle groove 15 is as shown in fig. 14 and 15, and includes a first toggle section 151, a first stopping section 152 and a second stopping section 153 which are communicated with each other. The first engagement region 1511 and the second engagement region 1512 are two inner wall surfaces disposed opposite to each other in the first toggle segment 151, respectively, wherein the first engagement region 1511 is close to the first stopper segment 152, and the second engagement region 1512 is close to the second stopper segment 153.

Preferably, the first stopping section 152 and the second stopping section 153 are symmetrically arranged about the center line of the first toggle section 151, and are obliquely arranged with respect to the first toggle section 151, so that the shape of the toggle slot 15 is adapted to the arc-shaped track of the second toggle portion 71 rotating around the first pivot joint 211. The second toggle part 71 can rotate in the toggle groove 15 relative to the housing assembly, and the angle change amount of the forward rotation or the reverse rotation of the second transmission piece 70 is equal.

When a user operates the key cylinder dial wheel to rotate along the counterclockwise direction shown in fig. 16, the second transmission member 70 drives the second toggle part 71 to rotate clockwise around the first pivot joint 211, the second toggle part 71 leaves the second stopping section 153 and abuts against the first matching area 1511, and then the mounting rack 17 is toggled to move towards the left direction shown in fig. 16 until the first lock tongue 10 extends out of the housing assembly, at this time, the state of the door lock 200 is shown in fig. 17, and the second toggle part 71 enters the first stopping section 152 and abuts against the inner wall of the first stopping section 152.

When a user operates the key cylinder dial wheel to rotate clockwise as shown in fig. 17, the second transmission member 70 drives the second toggle part 71 to rotate counterclockwise around the first pivot joint 211, the second toggle part 71 leaves the first stopping section 152 and abuts against the second matching area 1512, and then the mounting bracket 17 is toggled to move in the right direction as shown in fig. 17 until the first lock tongue 10 retracts into the housing assembly, at this time, the state of the door lock 200 is shown in fig. 16, and the second toggle part 71 enters the second stopping section 153 and abuts against the inner wall of the second stopping section 153.

In the state shown in fig. 16, the inner wall of the second stopping section 153 cooperates with the first pivot 211 to stop the first latch 10 from moving to the left in fig. 16, so as to limit the first latch 10 from extending out of the housing assembly, and the user cannot extend the first latch 10 even pulling the first latch 10; similarly, in the state shown in fig. 17, the inner wall of the first stopping section 152 cooperates with the first pivot 211 to stop the first locking tongue 10 from moving to the right in fig. 17, so as to limit the retraction of the first locking tongue 10 into the housing assembly, and the first locking tongue 10 cannot be retracted even if the first locking tongue 10 is pushed strongly.

Further, the first lock tongue 10 is provided with a sliding groove 16, and the length direction of the sliding groove 16 is consistent with the axial direction of the lock tongue through hole 2011. The first pivot 211 is disposed in the sliding groove 16 in a penetrating manner, and the first latch 10 is slidably engaged with the housing assembly by sleeving the sliding groove 16 on the periphery of the first pivot 211, so that the second transmission member 70 can drive the first latch 10 to extend and retract along the length direction of the sliding groove 16 relative to the housing assembly.

With such an arrangement, the arrangement of the first bolt 10, the first pivot joint 211 and the second transmission member 70 is more compact, so that the space occupied by the lock cylinder linkage mechanism can be reduced, the space utilization rate in the housing assembly is improved, and further, the miniaturization of the lock cylinder linkage mechanism and the door lock 200 is facilitated.

Referring to fig. 2 and 13, fig. 10 to 11, and fig. 12 again, fig. 12 is a schematic structural view of the second elastic element 14 according to an embodiment of the present invention.

Further, the lock cylinder linkage mechanism further includes a second elastic member 14 connecting the housing assembly and the second transmission member 70, and the second elastic member 14 has a first compression state and a second compression state. Under the first compression state, the second elastic component 14 is deformed in the forward direction, the second transmission component 70 is kept in contact with the inner wall of the first stopping section 152 under the elastic action, and under the second compression state, the second elastic component 14 is deformed in the reverse direction, and the second transmission component 70 is kept in contact with the inner wall of the second stopping section 153 under the elastic action.

Preferably, in this embodiment, the second elastic member 14 is a torsion spring, and includes a first elastic arm 144 and a second elastic arm 145 that are relatively rotatable, and a third torsion spring sleeve hole 143 is disposed therebetween for accumulating elastic potential energy, wherein a first torsion spring sleeve hole 141 is disposed at an end of the first elastic arm 144 away from the second elastic arm 145, and a second torsion spring sleeve hole 142 is disposed at an end of the second elastic arm 145 away from the first elastic arm 144. The second housing 202 is fixedly provided with a fourth pivot 214, and the first torsion spring hole 141 is sleeved with the fourth pivot 214 so as to be rotatably connected with the second housing 202; the second transmission member 70 is fixedly provided with an elastic member connection post 704, and the second torsion spring sleeve hole 142 is sleeved with the elastic member connection post 704 so as to be connected with the second transmission member 70 in a follow-up manner.

When a user locks the door by using the key, the key cylinder wheel outputs power in the forward direction and overcomes the elastic force of the second elastic element 14 to rotate the second transmission element 70 in the clockwise direction shown in fig. 16, when the second toggle part 71 is about to leave the second matching area 1512, the elastic potential energy accumulated in the second elastic element 14 reaches the maximum, then the second elastic element 14 deforms in the forward direction, rotates around the fourth pivot joint 214 relative to the housing assembly in the clockwise direction shown in fig. 13 and enters the first stopping section 152, and simultaneously, the included angle between the first elastic arm 144 and the second elastic arm 145 increases until the second transmission element 70 abuts against the inner wall of the first stopping section 152, and finally, the second elastic element 14 continuously applies the elastic force to the second transmission element 70, so that the second transmission element 70 and the inner wall of the first stopping section 152 are kept in the abutting state.

When a user uses a key to unlock the lock, the key cylinder dial wheel reversely outputs power and overcomes the elastic force of the second elastic element 14, so that the second transmission element 70 rotates counterclockwise as shown in fig. 17, when the second dial part 71 is about to leave the first matching area 1511, the elastic potential energy accumulated by the second elastic element 14 reaches the maximum, then the second elastic element 14 spontaneously deforms reversely, rotates counterclockwise around the fourth pivot joint 214 relative to the housing assembly as shown in fig. 13, enters the second stopping section 153, meanwhile, the included angle between the first elastic arm 144 and the second elastic arm 145 decreases until the second transmission element 70 abuts against the inner wall of the second stopping section 153, and finally, the second elastic element 14 continuously applies the elastic force to the second transmission element 70, so that the second transmission element is kept abutting against the inner wall of the second stopping section 153.

Further, the second transmission member 70 includes a first follow-up element 701 and a second follow-up element 702 which are separately arranged, the first follow-up element 701 and the second toggle portion 71 are fixedly connected and integrally formed by forging, the second follow-up element 702 is provided with a clamping groove 703 matched with the second toggle portion 71, and an elastic member connecting column 704 penetrating through the second torsion spring sleeve hole 142 is fixedly arranged.

The first following element 701 and the second following element 702 are both sleeved with the first pivot 211, and the second toggle portion 71 is clamped with the clamping groove 703, so that the first following element 701 and the second following element 702 are fixed into a whole and rotate around the first pivot 211 at the same speed relative to the housing assembly.

Preferably, the first follower element 701 and the second follower element 702 are both forged pieces; the toggle groove 15 is opened in the mounting frame 17, and the first following element 701 and the second following element 702 are located at two sides of the mounting frame 17 that are away from each other, where the first following element 701 is located at one side of the mounting frame 17 facing the first casing 201, and the second following element 702 is located at one side of the mounting frame 17 facing the second casing 202. The second toggle portion 71 is fixedly disposed at an end of the first follower 701 relatively far away from the first pivot 211, and is bent toward the second housing 202 relative to the first follower 701, so as to extend into the toggle slot 15.

So set up, the rate of motion and the motion space scope of first follow-up component 701 and second follow-up component 702 are unanimous, thereby cooperate the cooperation to exert forward power of dialling to first cooperation district 1511, perhaps exert reverse power of dialling to second cooperation district 1512, improved the holistic intensity of second driving medium 70 and load-carrying capacity, prevent that second driving medium 70 from wearing and tearing the deformation and then causing the lock core link gear motion card to pause, are favorable to improving the durability of lock core link gear. In addition, the first lock tongue 10, the first follow-up element 701 and the second follow-up element 702 are compactly arranged, so that the second elastic piece 14 is conveniently arranged, the time consumption of assembling, disassembling and maintaining of the lock cylinder linkage mechanism is reduced, and the assembling and disassembling difficulty of the lock cylinder linkage mechanism is reduced.

The second transmission member 70 includes a first follow-up element 701 and a second follow-up element 702 which are separately arranged, so that the second elastic member 14 is conveniently arranged, the connection reliability of the second elastic member 14 is ensured, and the technical consideration of the overall force bearing performance of the second transmission member 70 is improved, particularly, the first follow-up element 701 and the second follow-up element 702 are axially stacked on two sides of the mounting frame 17 along the first pivot joint 211, which is beneficial to improving the stability of the two in pushing the mounting frame 17 to move, and avoiding crushing deformation or abrasion caused by long-term use of the two.

It will be appreciated that in other embodiments, the second transmission member 70 need not be provided as two separate following elements fixed together, and the second elastic member 14 may be of other types, and is not limited to the torsion spring in the above embodiment.

The utility model also provides a door lock 200, which comprises a shell assembly and the bolt driving device 100 provided by the utility model, wherein the bolt driving device 100 is rotatably arranged relative to the shell assembly, and the first bolt 10 and the second bolt 20 are slidably arranged on the shell assembly.

The tongue drive apparatus 100 of the present invention integrates electrical control drive and mechanical drive based on a key. The key can be used to drive the lock cylinder thumb wheel, the first bolt 10 is driven to move telescopically by the lock cylinder thumb wheel, so that the door lock 200 can be switched between the unlocking state and the locking state, and the driving source can be used to output power to the driving piece 30, so that the door lock 200 can be switched between the opening state and the closing state and the unlocking state and the locking state.

In addition, the movement and position states of the latch bolt driving device 100 are easy and labor-saving to change, the movement process is simple and the operation is reliable, the connection and the matching of each component are stable, and the response to the power input of the driving source is sensitive and rapid.

In addition, the electric control driving mode and the mechanical driving mode based on the key are relatively independent. For the door lock 200 applying the deadbolt driving device 100 of the present invention, even if the electric control driving function of the door lock 200 is accidentally disabled, the whole door lock 200 cannot be scrapped, and the door lock 200 can also be used as a mechanical lock to continue to be used, and cannot be unlocked in an emergency.

The features of the above-described embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the features in the above-described embodiments are not described, but should be construed as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the features.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that suitable changes and modifications of the above embodiments are within the scope of the claimed invention as long as they are within the spirit and scope of the present invention.

Claims

1. A lock tongue driving device is arranged on a shell assembly, comprises a first lock tongue, a second lock tongue and a lock cylinder shifting wheel, and is characterized by further comprising a driving piece, a first shifting piece, a second shifting piece, a lock cylinder linkage mechanism and a third shifting piece;

the first spring bolt is connected with the lock cylinder linkage mechanism in a follow-up mode, the first poking piece and the second poking piece are overlapped, the first poking piece is movably connected with the lock cylinder linkage mechanism and is linked with the first spring bolt through the lock cylinder linkage mechanism, and the first poking piece is provided with a first matching part;

the second shifting piece is connected with the third shifting piece in a follow-up manner and is linked with the second lock tongue, and the second shifting piece is provided with a second matching part;

the driving piece can rotate forwards or reversely relative to the shell assembly and is provided with a driving part;

on a radial plane of the driving piece, projections of the first matching part and the second matching part form an overlapping area, and a projection of the driving part is located in the overlapping area; the lock cylinder shifting wheel is rotatably arranged on the shell component;

the lock tongue driving device is provided with a first state, a second state and a third state;

the driving piece reversely rotates in the first state, and is matched with the first matching part and the second matching part through the driving part to drive the first stirring piece and the second stirring piece to respectively link the first lock bolt and the second lock bolt to retract into the shell assembly, so that the lock bolt driving device is switched to the second state;

the driving piece reversely rotates in the third state and is matched with the second matching part through the driving part to drive the second poking piece to link the second lock bolt to retract into the shell assembly, so that the lock bolt driving device is switched to the second state;

the lock cylinder shifting wheel rotates reversely in the third state, and drives the second lock bolt to retract into the shell assembly through the third shifting piece, so that the lock bolt driving device is switched to the second state.

2. The deadbolt driver assembly of claim 1, wherein the first toggle member and the second toggle member axially engage the driver member, the first engagement portion includes a first idle slot formed in the first toggle member, and the second engagement portion includes a second idle slot formed in the second toggle member;

the driving portion penetrates through the first idle groove and the second idle groove and comprises a first abutting surface and a second abutting surface, the first abutting surface is used for abutting against the inner wall of the first idle groove, and the second abutting surface is used for abutting against the inner wall of the first idle groove and/or the second idle groove.

3. The deadbolt actuation assembly of claim 2, wherein the projections of the first and second idler slots on the drive member radial plane are both sector-shaped and concentrically arranged with the same radius; and/or the presence of a catalyst in the reaction mixture,

the driving piece comprises a limiting step, the limiting step is abutted to the first stirring piece or the second stirring piece, and the limiting step is used for limiting the axial relative arrangement of the driving piece and the first stirring piece or the second stirring piece.

4. The deadbolt drive assembly of claim 1, wherein the deadbolt linkage includes a first transmission member and a second transmission member rotatably coupled to the housing assembly, the first transmission member adapted to be in linkage engagement with the deadbolt wheel, the second transmission member movably coupled to the first toggle member;

the first transmission piece comprises a first shifting part, the second transmission piece comprises a second shifting part, the first transmission piece is connected with the second shifting part in a follow-up mode through the first shifting part, and the second transmission piece is connected with the first lock tongue in a follow-up mode through the second shifting part and used for driving the first lock tongue to stretch and retract relative to the shell assembly;

the first lock tongue is connected with the first stirring piece in a follow-up mode through the lock cylinder linkage mechanism.

5. The deadbolt actuation assembly of claim 4, wherein the first toggle member is rotatably coupled to the housing assembly and the first toggle member includes a first set of drive teeth;

the second transmission piece comprises a second transmission tooth group meshed with the first transmission tooth group, and the first poking piece is meshed and linked with the second transmission piece through teeth.

6. The deadbolt drive arrangement of claim 1, wherein one end of the third toggle member extends toward the cylinder thumb wheel and is capable of cooperating with the cylinder thumb wheel in a linkage manner, and the other end of the third toggle member is drivingly connected to the second toggle member;

in the third state, the lock cylinder thumb wheel can rotate reversely and push the third toggle piece, so that the third toggle piece is linked with the second lock bolt to retract into the shell assembly.

7. The lock tongue driving device according to claim 6, wherein the third toggle member is provided with a strip-shaped hole, the first lock tongue is further fixedly provided with a second convex column, and the second convex column penetrates through the strip-shaped hole and is in sliding fit with the inner wall of the strip-shaped hole.

8. The deadbolt driver of claim 6, wherein the second toggle member includes a second force-transmitting pin, wherein a socket hole is formed in an end of the third toggle member opposite to the second toggle member, and the second force-transmitting pin is inserted into the socket hole.

9. The deadbolt actuation assembly of claim 1, further comprising a plug assembly fixedly mounted to a housing assembly, the plug assembly including the plug wheel.

10. A door lock comprising a housing assembly and the deadbolt actuation assembly of any one of claims 1-9, the deadbolt actuation assembly being mounted to the housing assembly, the first deadbolt and the second deadbolt being slidably disposed in the housing assembly.