CN217602353U - Door lock device with multiple linked lock tongues - Google Patents

Abstract

The utility model discloses a multi-bolt linkage door lock device, including the lock shell and all set up the first spring bolt module in the lock shell, the second spring bolt module, drive module and link mechanism, the second spring bolt module includes insurance tongue subassembly and multistage locating component, be provided with first drive structure and second drive structure on the drive module, wherein, drive module rotates with first clock direction, first drive structure can with first spring bolt module butt in order to the latch bolt to retract into the lock shell, and second drive structure can drive link mechanism and multistage locating component respectively, so that multistage locating component and insurance tongue subassembly unblock and link mechanism drive insurance tongue subassembly to retract into the lock shell; the driving module rotates in a second clock direction opposite to the first clock direction, and the second driving structure can drive the connecting rod mechanism, so that the connecting rod mechanism drives the safety tongue assembly to extend out of the lock shell and select between at least two locking positions.

Description

Door lock device with multiple linked lock tongues

Technical Field

The utility model relates to a lock technical field, in particular to locks of many spring bolts linkage.

Background

The traditional door lock device generally comprises a latch bolt and a safety bolt, and the latch bolt and the safety bolt can be synchronously retracted into a lock shell when a door is opened, and the safety bolt has a locking process function when the door is locked, so that a driving structure for the latch bolt and the safety bolt in the door lock device is generally realized by a multi-stage gear set, but the multi-stage gear set is generally large in size, needs to occupy more space and does not meet the use requirement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a door lock device of many spring bolts linkage, simple structure reduces the volume, saves occupation space.

According to the utility model discloses a door lock device of many spring bolts linkage of first aspect embodiment, include: a lock case; the first lock tongue module is arranged in the lock shell and comprises an inclined tongue movably arranged on the lock shell; the second bolt module is arranged in the lock shell and comprises a safety bolt assembly movably arranged in the lock shell and a multi-stage positioning assembly movably arranged in the lock shell, the multi-stage positioning assembly and the safety bolt assembly are locked to restrict the safety bolt assembly from moving relative to the lock shell, and the multi-stage positioning assembly and the safety bolt assembly can be selectively locked between at least two locking positions to change the distance of the safety bolt assembly extending out of the lock shell; the driving module is rotatably arranged on the lock shell and is provided with a first driving structure and a second driving structure; the connecting rod mechanism is rotatably arranged in the lock shell and is connected with the safety tongue component; the driving module rotates in a first clock direction, the first driving structure can be abutted to the first bolt module to drive the inclined bolt to retract into the lock shell, and the second driving structure can respectively drive the connecting rod mechanism and the multistage positioning assembly, so that the multistage positioning assembly is unlocked from the safety bolt assembly and the connecting rod mechanism drives the safety bolt assembly to retract into the lock shell; the driving module rotates in a second clock direction opposite to the first clock direction, and the second driving structure can drive the connecting rod mechanism, so that the connecting rod mechanism drives the safety tongue assembly to extend out of the lock shell and select at least two locking positions.

According to the utility model discloses door lock device of many spring bolts linkage has following beneficial effect at least:

the utility model discloses door lock device, the user can be electronic or manual action in drive module, drive module rotates with second clock direction, second drive structure acts on link mechanism, drive through link mechanism the insurance tongue subassembly stretches out, and along with drive module rotates the process, can control insurance tongue subassembly and select in two at least closure positions, thereby change the distance that insurance tongue subassembly stretches out the lock shell, realize door lock device's the state of locking, and when needing to open the door, the user can rotate drive module with first clock direction, first drive structure can with first insurance tongue module butt in order to order about oblique tongue retraction lock shell, and simultaneously, second drive structure can drive link mechanism and multistage locating component respectively, multistage locating component and insurance tongue subassembly unblock, link mechanism can drive insurance tongue subassembly retraction lock shell this moment, this design utilizes link mechanism to drive insurance tongue subassembly action, utilize multistage locating component to provide multistage closure position to insurance tongue subassembly's the distance of stretching out simultaneously, moreover, the steam generator is simple in structure, the volume is reduced, and the occupation space is saved.

According to some embodiments of the utility model, multistage locating component includes first fly leaf, first piece that resets, buckle group and bayonet socket, first fly leaf activity sets up in the lock shell, buckle group includes a plurality of buckles, buckle group with one of them setting of bayonet socket is in on the insurance tongue subassembly, buckle group with another setting of bayonet socket is in on the first fly leaf, first piece that resets set up in the lock shell, first piece that resets with first fly leaf is connected in order to order about bayonet socket and arbitrary one the buckle lock, second drive structure can drive first fly leaf so that the buckle with the bayonet socket is broken out.

According to some embodiments of the invention, the buckle group is arranged on the safety tongue assembly, and the buckle is arranged along the telescopic direction of the safety tongue assembly.

According to some embodiments of the utility model, the buckle is followed the insurance tongue subassembly stretches out the front end of locking shell direction is provided with the guide part, the rear end of buckle is provided with joint portion, the lateral wall of bayonet socket can be followed the guide part removes in order to allow the insurance tongue subassembly stretches out the locking shell, the lateral wall of bayonet socket with joint portion supports tightly in order to restrict the insurance tongue subassembly retracts lock shell.

According to some embodiments of the present invention, the driving module includes a rotating seat rotatably disposed on the lock housing, a first driving structure and a second driving structure are disposed on the rotating seat, the second driving structure includes a first abutting portion, a second abutting portion and a third abutting portion circumferentially disposed on the rotating seat along a rotation axis of the rotating seat, the rotating seat rotates in a first clock direction, the third abutting portion contacts with the first movable plate to unlock the multistage positioning assembly from the safety tongue assembly, and the first abutting portion contacts with the link mechanism to drive the safety tongue assembly to retract into the lock housing through the link mechanism; the rotating seat rotates in a second clock direction, and the second abutting portion is in contact with the connecting rod mechanism so as to drive the safety tongue assembly to extend out of the lock shell through the connecting rod mechanism.

According to some embodiments of the utility model, still set up including rotating the pendulum of lock shell colludes, third butt portion can with the one end butt that the pendulum colluded is in order to order about the pendulum colludes the rotation, the other end that the pendulum colluded can the butt in first fly leaf is with the lifting first fly leaf makes the buckle with the bayonet socket is left out of work.

According to some embodiments of the utility model, first drive structure still includes first arrangement dish and sets up fourth butt portion on the first arrangement dish, first arrangement dish cover is established rotate the seat, first arrangement dish is provided with default groove, be provided with the lug on the rotation seat, the lug is located in the default groove and can in default inslot activity, it makes to rotate the seat the lug with the end wall butt in default groove rotates in order to drive first arrangement dish, first arrangement dish rotates and can makes fourth butt portion with first lock tongue module butt is in order to order about the oblique tongue retraction the lock shell.

According to some embodiments of the utility model, the second drive structure still includes the second arrangement dish, first butt portion, second butt portion and third butt portion all set up the second arrangement dish, the fixed cover of second arrangement dish is established rotate the seat, first arrangement dish with the second arrangement dish is followed the extending direction setting of the axis of rotation of rotating the seat.

According to the utility model discloses a some embodiments, insurance tongue subassembly includes the second fly leaf and sets up at least one insurance spring bolt on the second fly leaf, the activity of second fly leaf sets up in the lock shell, link mechanism sets up including rotating the pendulum rod of lock shell, set up in the first spacing groove and the setting of pendulum rod are in the first stopper of second fly leaf, first stopper activity sets up first spacing inslot and first stopper can be followed first spacing groove removes, second drive structure drives the pendulum rod is in order to order about the second fly leaf drives insurance spring bolt retraction or stretch out the lock shell.

According to some embodiments of the utility model, first lock tongue module still includes installed part and the second piece that resets, the latch bolt sets up on the installed part, the second resets and sets up lock shell, first drive structure can with the installed part butt is in order to order about the latch bolt retraction lock shell, the second reset with the installed part is connected in order to order about the latch bolt stretches out lock shell.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic perspective view of one embodiment of the door lock device of the present invention;

fig. 2 is a schematic view of an internal structure of one embodiment of the door lock device of the present invention;

fig. 3 is a schematic structural diagram of a driving module for locking operation according to an embodiment of the door lock device of the present invention;

fig. 4 is a schematic structural diagram of a second latch bolt module in a first state of locking operation according to an embodiment of the door lock device of the present invention;

fig. 5 is a schematic structural diagram of a second latch bolt module in a second state of locking operation according to an embodiment of the door lock device of the present invention;

fig. 6 is a schematic structural diagram of a second latch bolt module in a third state of locking operation according to an embodiment of the door lock device of the present invention;

fig. 7 is an enlarged schematic view of a portion a of one embodiment of the door latch mechanism of fig. 6;

FIG. 8 is a perspective view of the driving module;

fig. 9 is a schematic structural view of a driving module for unlocking operation according to one embodiment of the door lock device of the present invention;

fig. 10 is a schematic structural view of a second bolt module for unlocking operation according to an embodiment of the door lock device of the present invention;

fig. 11 is an enlarged schematic view of a part B of one embodiment of the door lock device of fig. 9.

Reference numerals:

the lock case 100, the first latch module 200, the mounting member 210, the latch bolt 220, the second reset element 230, the second latch module 300, the latch bolt assembly 310, the second movable plate 311, the latch bolt 312, the multi-stage positioning assembly 320, the first movable plate 321, the first reset element 322, the latch 323, the guide 324, the latch 325, the bayonet 326, the first limiting block 330, the first limiting groove 340, the driving module 400, the rotating base 410, the first driving structure 420, the first mounting plate 421, the fourth abutting portion 422, the protrusion 423, the default groove 424, the second driving structure 430, the first abutting portion 431, the second abutting portion 432, the third abutting portion 433, the second mounting plate 434, the swing hook 440, the link mechanism 500, the swing rod 510, the second limiting block 520, the second limiting groove 530, the third limiting block 540, and the third limiting groove 550.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplicity of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the invention.

In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 11, a multi-bolt linked door lock device according to a first aspect of the present invention includes a lock case 100, a first bolt module 200, a second bolt module 300, a driving module 400 and a link mechanism 500 all disposed in the lock case 100, wherein the first bolt module 200 includes a latch bolt 220 movably disposed in the lock case 100, the second bolt module 300 includes a latch bolt assembly 310 movably disposed in the lock case 100 and a multi-stage positioning assembly 320 movably disposed in the lock case 100, the multi-stage positioning assembly 320 and the latch bolt assembly 310 can be locked together to restrain the latch bolt assembly 310 from moving relative to the lock case 100, and the multi-stage positioning assembly 320 and the latch bolt assembly 310 can be selectively locked together between at least two locking positions to change the distance of the latch bolt assembly 310 extending out of the lock case 100, the driving module 400 is rotatably disposed in the lock case 100, the driving module 400 is provided with a first driving structure 420 and a second driving structure 430, the link mechanism 500 is rotatably disposed in the lock case 100, and the link mechanism 500 is connected with the latch bolt assembly 310; the driving module 400 rotates in a first clock direction, the first driving structure 420 can abut against the first latch module 200 to drive the latch bolt 220 to retract into the lock case 100, and the second driving structure 430 can respectively drive the link mechanism 500 and the multi-stage positioning component 320, so that the multi-stage positioning component 320 and the safety tongue component 310 are unlocked and the link mechanism 500 drives the safety tongue component 310 to retract into the lock case 100; the drive module 400 rotates in a second clock direction opposite to the first clock direction, and the second drive structure 430 is capable of driving the linkage mechanism 500 such that the linkage mechanism 500 drives the strike assembly 310 out of the lock housing 100 and selects between at least two lock positions.

It should be noted that the door lock device of the present design can be applied to an electric door lock or a mechanical door lock, specifically, the driving module 400 can be driven by an electric control component (e.g., a motor, a rotary cylinder, etc.), and also can be driven by a mechanical lock cylinder, and the driving module 400 rotates in a first clock direction or a second clock direction, and can correspondingly correspond to unlocking and unlocking functions.

The utility model discloses door lock device, the user can be electronic or manual action in drive module 400, drive module 400 rotates with the second clock direction, second drive structure 430 acts on link mechanism 500, it stretches out to drive insurance tongue subassembly 310 through link mechanism 500, and along with drive module 400 rotates the process, can control insurance tongue subassembly 310 and select in two at least closure positions, thereby change the distance that insurance tongue subassembly 310 stretches out lock shell 100, realize door lock device's the state of locking, and when needing to open the door, the user can rotate drive module 400 with first clock direction, first drive structure 420 can with first insurance tongue module 200 butt in order to order about oblique tongue 220 retraction lock shell 100, and simultaneously, second drive structure 430 can drive link mechanism 500 and multistage locating component 320 respectively, multistage locating component 320 and insurance tongue subassembly 310 unblock, link mechanism 500 can drive insurance tongue subassembly 310 retraction lock shell 100 this moment, this design utilizes link mechanism 500 to drive insurance tongue subassembly 310 action, utilize multistage locating component 320 to provide multistage closure position to insurance tongue subassembly 310's the distance that stretches out simultaneously, the volume is reduced, save the space.

In some embodiments of the present invention, as shown in fig. 6 and 7, the multi-stage positioning assembly 320 includes a first movable plate 321, a first reset member 322, a buckle set and a bayonet 326, the first movable plate 321 is movably disposed in the lock case 100, the buckle set includes a plurality of buckles 323, one of the buckle set and the bayonet 326 is disposed on the safety tongue assembly 310, the other of the buckle set and the bayonet 326 is disposed on the first movable plate 321, the first reset member 322 is disposed on the lock case 100, the first reset member 322 is connected with the first movable plate 321 to be able to order about the bayonet 326 to be fastened with any one of the buckles 323, and the second driving structure 430 can drive the first movable plate 321 to enable the buckles 323 to be unfastened from the bayonet 326.

By means of the buckling of the buckle set with the bayonet 326, the movement of the safety tongue assembly 310 relative to the lock case 100 can be restricted, so that the safety tongue assembly 310 can be kept stable after extending out of the lock case 100, and the safety performance of the door lock is improved.

Specifically, the latch assembly may be disposed on the tongue assembly 310, and the bayonet 326 may be disposed on the first movable plate 321. In some embodiments of the present invention, the snap-fit set and the bayonet 326 may also be replaced by a pin and a hole, a rack and a latch, etc.

The first restoring member 322 may be a tension spring, a weight, or the like, which may make the bayonet 326 tend to be buckled with the buckle 323.

Specifically, as shown in fig. 3, 4, 5, 6, 9, and 10, a second limiting block 520 may be further disposed on the lock housing 100, and a second limiting groove 530 may be disposed on the first movable plate 321, the second limiting block 520 is disposed in the second limiting groove 530, and the second limiting block 520 is capable of moving along the second limiting groove 530, so as to limit the moving direction of the first movable plate 321, and thus the bayonet 326 may be accurately buckled with the bayonet 323 under the force of the first restoring element 322.

In some embodiments of the present invention, the buckle group is disposed on the safety tongue assembly 310, and the plurality of buckles 323 are arranged along the telescopic direction of the safety tongue assembly 310, so that the safety tongue assembly 310 can continuously select locking in different locking positions under the driving of the link mechanism 500.

It should be noted that there are at least two snaps 323, thereby providing at least two locking positions, and as shown in fig. 4, 5 and 6, there may be three snaps 323, wherein one of the snaps 323 is adapted to engage with the snap 323 to position the tongue assembly 310 when the tongue assembly 310 is retracted into the lock housing 100, as shown in fig. 4, and the other two snaps 323 respectively correspond to different locking positions of the tongue assembly 310 after it has been extended out of the lock housing 100, as shown in fig. 5 and 6.

In some embodiments of the present invention, as shown in fig. 6 and 7, the buckle 323 is provided with a guiding portion 324 at a front end of the safety tongue assembly 310 in a direction extending out of the lock case 100, the buckle 323 is provided with a buckling portion 325 at a rear end thereof, a side wall of the bayonet 326 is capable of moving along the guiding portion 324 to allow the safety tongue assembly 310 to extend out of the lock case 100, and a side wall of the bayonet 326 is capable of abutting against the buckling portion 325 to limit the safety tongue assembly 310 from retracting into the lock case 100, so that when the link mechanism 500 is driven to act on the safety tongue assembly 310 to cause the safety tongue assembly 310 to tend to extend out of the lock case 100, the side wall of the bayonet 326 is capable of moving along the guiding portion 324 to release the bayonet 326 from the buckle 323, so that the multi-stage positioning assembly 320 is not required to be acted on by the driving module 400 to release the multi-stage positioning assembly 320 to cause the safety tongue assembly 310 to extend out of the lock case 100, and the bayonet 326 released from the preceding buckle 323 is capable of smoothly buckling with the next buckle 323 to achieve selection of multiple locking positions, but if the safety tongue assembly 310 tends to retract into the lock case 100, the side wall of the lock case 326 is tightly abutted against the safety tongue assembly 325 to limit the safety lock case 100.

Specifically, the guide portion 324 may be a slope surface having an acute slope, and the catching portion 325 may be a slope surface having an obtuse slope.

In some embodiments of the present invention, as shown in fig. 3, 4, 5, 6, 8, 9, and 10, the driving module 400 includes a rotation seat 410 rotatably disposed on the lock case 100, the first driving structure 420 and the second driving structure 430 are both disposed on the rotation seat 410, the second driving structure 430 includes a first abutting portion 431, a second abutting portion 432, and a third abutting portion 433 disposed on the rotation seat 410 along a rotation axis circumference of the rotation seat 410, the rotation seat rotates in a first clock direction, the third abutting portion 433 contacts with the first movable plate 321 to unlock the multi-stage positioning assembly 320 from the tongue assembly 310, and the first abutting portion 431 contacts with the link mechanism 500 to drive the tongue assembly 310 to retract into the lock case 100 through the link mechanism 500; the rotating base rotates in the second clock direction, and the second abutting portion 432 contacts the link mechanism 500 to drive the safety tongue assembly 310 to extend out of the lock case 100 through the link mechanism 500.

The rotating base 410 can be used for being connected with an external lock cylinder or a driving component such as a motor, and the first abutting portion 431, the second abutting portion 432 and the third abutting portion 433 are circumferentially arranged on the rotating base 410, so that when the rotating base 410 rotates in the first clock direction, the third abutting portion 433 acts on the multistage positioning assembly 320, the first abutting portion 431 acts on the link mechanism 500, and therefore the safety tongue assembly 310 can be retracted into the lock case 100, and when the rotating base rotates in the second clock direction, the second abutting portion 432 can act on the link mechanism 500, and the safety tongue assembly 310 is driven to gradually extend out of the lock case 100.

Specifically, as shown in fig. 4, 8 and 9, the first abutting portion 431, the second abutting portion 432 and the third abutting portion 433 are all convex portions protruding from the side wall of the rotary holder 410, and one end of the link mechanism 500 is located between the first abutting portion 431 and the second abutting portion 432, so that when the rotary holder 410 rotates in the first clock direction and the second clock direction, the first abutting portion 431 and the second abutting portion 432 can respectively act on the link mechanism 500.

In some embodiments of the present invention, as shown in fig. 9 and 10, the swing hook 440 rotatably disposed on the lock case 100 is further included, the third abutting portion 433 can abut against one end of the swing hook 440 to drive the swing hook 440 to rotate, the other end of the swing hook 440 can abut against the first movable plate 321 to lift the first movable plate 321 to release the buckle 323 from the bayonet 326, when the door lock device needs to be unlocked, the latch assembly 310 retracts into the lock case 100, the third abutting portion 433 applies force to one end of the swing hook 440 to drive the swing hook 440 to swing, the other end of the swing hook 440 lifts the first movable plate 321 in the direction toward the bayonet 326 to release the buckle 323, thereby releasing the buckle 323 from the bayonet 326, the structure is simple and stable, the multistage positioning assembly 320 can stably release the constraint on the latch assembly 310, and the latch assembly 310 smoothly retracts into the lock case 100.

In some embodiments of the present invention, as shown in fig. 3 and 9, the first latch bolt module 200 further includes a mounting member 210 and a second reset member 230, the latch bolt 220 is disposed on the mounting member 210, the second reset member 230 is disposed on the lock case 100, the first driving structure 420 can abut against the mounting member 210 to drive the latch bolt 220 to retract into the lock case 100, the second reset member 230 is connected to the mounting member 210 to drive the latch bolt 220 to extend out of the lock case 100, so that the latch bolt 220 can automatically extend out of the lock case 100, and the door lock device can lock the door body by using the latch bolt 220 in time, thereby improving the safety performance.

Wherein, the installed part 210 can include branch and protruding muscle piece, and the latch bolt 220 sets up the one end at branch, and protruding muscle piece sets up the other end at branch, and the latch bolt 220 wears to establish on the lock shell 100, and the second piece 230 that resets can be spring or extension spring, and the second piece 230 that resets sets up at the lock shell 100 to act on protruding muscle piece, thereby make the latch bolt 220 automatic stretch out, and first actuating mechanism can act on protruding muscle piece, make the latch bolt 220 retract in the lock shell 100.

Since the latch 220 is generally automatically extended out of the lock case 100, in the process that the driving module 400 drives the safety latch assembly 310 to extend out of the lock case 100, the driving module 400 does not need to act on the first latch module 200, and therefore, in some embodiments of the present invention, as shown in fig. 3, 8, 9, and 11, the first driving structure 420 further includes a first installation plate 421 and a fourth abutting portion 422 disposed on the first installation plate 421, the first installation plate 421 is sleeved on the rotary seat 410, the first installation plate 421 is provided with a default slot 424, the rotary seat 410 is provided with a projection 423, the projection 423 is located in the default slot 424 and can move in the default slot 424, the rotary seat 410 rotates to abut the projection against an end wall of the default slot 424 to drive the first installation plate 421 to rotate, and the first installation plate 421 rotates to abut against the fourth abutting portion 422 against the first latch module 200 to drive the latch 220 to retract into the lock case 100.

The fourth abutting portion 422 may be a protrusion 423 protruding from the peripheral wall of the first mounting plate 421, when the driving module 400 rotates in the first clock direction, the protrusion 423 abuts against the end wall of the default slot 424 to drive the first mounting plate 421 to rotate, so that the fourth abutting portion 422 abuts against the first latch module 200 to drive the latch bolt 220 to retract into the lock case 100, and meanwhile, the second driving structure 430 can also respectively drive the link mechanism 500 and the multi-stage positioning assembly 320, so that the multi-stage positioning assembly 320 and the latch bolt assembly 310 are unlocked and the link mechanism 500 drives the latch bolt assembly 310 to retract into the lock case 100.

When the driving module 400 rotates in the second clock direction, the second driving structure 430 rotates along with the rotating base 410, but the protrusion 423 moves in the default groove 424, and the first positioning plate 421 does not rotate, so that the fourth abutting portion 422 does not act on the first latch module 200 for abutting, thereby making the transmission process of the driving module 400 smoother and more stable.

In some embodiments of the present invention, as shown in fig. 8, the second driving structure 430 further includes a second setting plate 434, the first abutting portion 431, the second abutting portion 432 and the third abutting portion 433 are all disposed on the second setting plate 434, the second setting plate 434 is fixedly disposed on the rotary seat 410, the first setting plate 421 and the second setting plate 434 are disposed along the extending direction of the rotation axis of the rotary seat 410, so as to reduce the volume of the driving module 400, meanwhile, the fourth abutting portion 422 does not interfere with the first abutting portion 431, the second abutting portion 432 and the third abutting portion 433, and the driving is smoother.

Specifically, the second positioning plate 434 may be provided with a non-circular sleeve hole, and the second mounting plate is sleeved on the rotating base 410 through the sleeve hole.

In some embodiments of the present invention, as shown in fig. 4, 5, 6, and 10, the safety latch assembly 310 includes a second movable plate 311 and at least one safety latch 312 disposed on the second movable plate 311, the second movable plate 311 is movably disposed in the lock case 100, the link mechanism 500 includes a swing rod 510 rotatably disposed in the lock case 100, a first limiting groove 340 disposed in the swing rod 510, and a first limiting block 330 disposed in the second movable plate 311, the first limiting block 330 is movably disposed in the first limiting groove 340, and the first limiting block 330 can move along the first limiting groove 340, and the second driving structure 430 drives the swing rod 510 to drive the safety latch 312 to retract into or extend out of the lock case 100 by the second movable plate 311.

As shown in fig. 4, 5 and 6, the number of the safety lock tongues 312 may be three, the swing rod 510 is driven to swing, and the first limiting block 330 may move along the first limiting groove 340, so that the force applied by the swing rod 510 to the second movable plate 311 drives the second movable plate 311 to linearly drive the safety lock tongues 312 to retract into or extend out of the lock case 100, and the operation is smooth and stable.

Specifically, a third limiting block 540 may be further disposed on the lock case 100, a third limiting groove 550 is disposed on the second movable plate 311, the third limiting block 540 moves along the third limiting groove 550, and the third limiting groove 550 is disposed along the extension direction of the safety lock tongue 312, so as to further limit the safety lock tongue 312 to stably retract into or extend out of the lock case 100.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A multi-bolt linked door lock device is characterized by comprising:

a lock case;

the first bolt module is arranged in the lock shell and comprises a latch bolt movably arranged in the lock shell;

the second bolt module is arranged in the lock shell and comprises a safety bolt assembly movably arranged in the lock shell and a multi-stage positioning assembly movably arranged in the lock shell, the multi-stage positioning assembly and the safety bolt assembly are locked to restrict the safety bolt assembly from moving relative to the lock shell, and the multi-stage positioning assembly and the safety bolt assembly can be selectively locked in at least two locking positions to change the distance of the safety bolt assembly extending out of the lock shell; the driving module is rotatably arranged on the lock shell and is provided with a first driving structure and a second driving structure;

the connecting rod mechanism is rotatably arranged in the lock shell and is connected with the safety tongue component;

the driving module rotates in a first clock direction, the first driving structure can abut against the first lock tongue module to drive the oblique tongue to retract into the lock shell, and the second driving structure can respectively drive the connecting rod mechanism and the multi-stage positioning assembly, so that the multi-stage positioning assembly is unlocked from the safety tongue assembly and the connecting rod mechanism drives the safety tongue assembly to retract into the lock shell; the drive module rotates in a second clock direction opposite to the first clock direction, and the second drive structure can drive the link mechanism, so that the link mechanism drives the safety tongue assembly to extend out of the lock shell and select between at least two locking positions.

2. The multi-bolt linked door lock device according to claim 1, wherein: multistage locating component includes first fly leaf, the first piece that resets, buckle group and bayonet socket, first fly leaf activity sets up in the lock shell, buckle group includes a plurality of buckles, buckle group with one of them setting of bayonet socket is in on the insurance tongue subassembly, buckle group with another setting of bayonet socket is in on the first fly leaf, the first piece that resets set up in the lock shell, the first piece that resets with first fly leaf is connected in order to order about bayonet socket and arbitrary one the buckle lock, second drive structure can drive first fly leaf so that the buckle with the bayonet socket is unbuckled.

3. The multi-bolt-linked door lock device according to claim 2, wherein: the buckle group is arranged on the safety tongue assembly, and the plurality of buckles are arranged along the telescopic direction of the safety tongue assembly.

4. The multi-bolt linked door lock device according to claim 2, wherein: the buckle is followed the insurance tongue subassembly stretches out the front end of lock shell direction is provided with the guide part, the rear end of buckle is provided with joint portion, the lateral wall of bayonet socket can be followed the guide part removes in order to allow the insurance tongue subassembly stretches out the lock shell, the lateral wall of bayonet socket with joint portion supports tightly in order to restrict the insurance tongue subassembly retracts the lock shell.

5. The multi-bolt linked door lock device according to claim 2, wherein: the driving module comprises a rotating seat which is rotatably arranged on the lock shell, a first driving structure and a second driving structure are arranged on the rotating seat, the second driving structure comprises a first abutting part, a second abutting part and a third abutting part which are circumferentially arranged on the rotating seat along the rotating shaft of the rotating seat, the rotating seat rotates in a first clock direction, the third abutting part is in contact with the first movable plate so that the multistage positioning assembly is unlocked from the safety tongue assembly, and the first abutting part is in contact with the connecting rod mechanism so that the safety tongue assembly is driven to retract into the lock shell through the connecting rod mechanism; the rotating seat rotates in a second clock direction, and the second abutting portion is in contact with the connecting rod mechanism so as to drive the safety tongue assembly to extend out of the lock shell through the connecting rod mechanism.

6. The multi-bolt linked door lock device according to claim 5, wherein: the lock shell is characterized by further comprising a pendulum hook which is rotatably arranged on the lock shell, the third abutting portion can abut against one end of the pendulum hook to drive the pendulum hook to rotate, and the other end of the pendulum hook can abut against the first movable plate to lift the first movable plate to enable the buckle to be unbuckled from the bayonet.

7. The multi-bolt linked door lock device according to claim 5, wherein: the first driving structure further comprises a first mounting disc and a fourth abutting portion arranged on the first mounting disc, the first mounting disc is sleeved on the rotating seat, the first mounting disc is provided with a default groove, a protruding block is arranged on the rotating seat, the protruding block is located in the default groove and can move in the default groove, the rotating seat rotates to enable the protruding block to abut against the end wall of the default groove to drive the first mounting disc to rotate, and the first mounting disc rotates to enable the fourth abutting portion to abut against the first lock tongue module to drive the oblique tongues to retract into the lock shell.

8. The multi-bolt linked door lock device according to claim 7, wherein: the second driving structure further comprises a second arranging disc, the first abutting portion, the second abutting portion and the third abutting portion are arranged on the second arranging disc, the second arranging disc is fixedly sleeved on the rotating seat, and the first arranging disc and the second arranging disc are arranged along the extending direction of the rotating shaft of the rotating seat.

9. The multi-bolt linked door lock device according to claim 1, wherein: the safety bolt assembly comprises a second movable plate and at least one safety bolt arranged on the second movable plate, the second movable plate is movably arranged in the lock shell, the connecting rod mechanism comprises a swing rod, a first limiting groove and a first limiting block, the swing rod is rotatably arranged in the lock shell, the first limiting groove is formed in the swing rod, the first limiting block is movably arranged in the first limiting groove, the first limiting block can move along the first limiting groove, the second driving structure drives the swing rod to drive the second movable plate to drive the safety bolt to retract into or extend out of the lock shell.

10. The multi-bolt linked door lock device according to claim 1, wherein: first lock tongue module still includes installed part and the second piece that resets, the latch bolt sets up on the installed part, the second resets and sets up the lock shell, first drive structure can with the installed part butt is in order to order about the latch bolt retraction lock shell, the second reset with the installed part is connected in order to order about the latch bolt stretches out lock shell.

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