CN108252572B

CN108252572B - Mortise lock

Info

Publication number: CN108252572B
Application number: CN201810205362.2A
Authority: CN
Inventors: 陈龙
Original assignee: Hangzhou Yixinan Industrial Co ltd
Current assignee: Hangzhou Yixinan Industrial Co ltd
Priority date: 2018-03-13
Filing date: 2018-03-13
Publication date: 2023-07-28
Anticipated expiration: 2038-03-13
Also published as: CN108252572A

Abstract

The invention provides a mortise lock, which comprises a lock shell, a panel, an inclined tongue component, a square tongue component, an automatic locking component and a manual unlocking component, wherein the inclined tongue component comprises an inclined tongue and a poking component, the square tongue component comprises a square tongue and a square tongue connecting plate, the poking component comprises a reversing block, a first poking piece and a second poking piece, one of the first poking piece and the second poking piece is fixedly connected with the reversing block, and the other is rotatably connected with the reversing block; the first stirring piece and the second stirring piece are both provided with a stirring arm for stirring the inclined tongue to retract; the automatic locking assembly comprises a square tongue poking piece which is rotatably arranged in the lock shell and used for poking the square tongue connecting plate; the manual unlocking assembly comprises a shifting piece, the shifting piece is rotatably arranged in the lock shell, the reversing block is provided with a clamping groove, one end of the shifting piece is matched with the clamping groove, the shifting piece is driven to rotate by rotating the reversing block, the other end of the shifting piece is matched with the square tongue shifting piece and used for shifting the square tongue shifting piece to rotate, and then the square tongue is driven to retract into the lock shell.

Description

Mortise lock

Technical Field

The invention relates to the technical field of locks, in particular to a mortise lock.

Background

The mortise lock is also called as a mortise door lock, is installed on an indoor suit door and an anti-theft door in many ways, and is one of the most common locks in the market. The lock pin lock can be automatically locked through the square tongue after the door is closed, and the handle in the door can be rotated to unlock after the lock is locked, but the manual unlocking structure of the existing lock pin lock is complex, and the problem of response delay exists.

Disclosure of Invention

The invention aims to solve the problems and provide the mortise lock which can be directly unlocked in a door by a manual mode, and has the advantages of simple unlocking structure and sensitive and rapid response.

In order to achieve the above-mentioned purpose, the present invention provides a mortise lock, including a lock case, a panel, a latch assembly and a square bolt assembly; the panel is arranged on one side of the lock shell to seal the lock shell, the inclined tongue component and the square tongue component are both arranged in the lock shell, the inclined tongue component comprises an inclined tongue, the square tongue component comprises a square tongue, the inclined tongue and the square tongue are both arranged in the lock shell and can pass through the panel in a sliding manner, and the inclined tongue component further comprises a stirring component for stirring the inclined tongue to retract; the toggle assembly comprises a reversing block, a first toggle piece and a second toggle piece, one of the first toggle piece and the second toggle piece is fixedly connected with the reversing block, the other one of the first toggle piece and the second toggle piece is rotatably connected with the reversing block, the first toggle piece or the second toggle piece fixedly connected with the reversing block is used for being connected with an inner door handle, and the second toggle piece or the first toggle piece rotatably connected with the reversing block is used for being connected with an outer door handle; the first stirring piece and the second stirring piece are respectively provided with a stirring arm for stirring the inclined tongue to retract; the square tongue assembly further comprises a square tongue connecting plate, wherein the square tongue connecting plate is arranged at the rear end of the square tongue and is used for driving the square tongue to move forwards to extend out of the lock shell or move backwards to retract into the lock shell; the lock pin lock also comprises an automatic locking assembly and a manual unlocking assembly, wherein the automatic locking assembly comprises a square tongue poking piece which is rotatably arranged in the lock shell and used for poking a square tongue connecting plate so as to drive the square tongue to extend out of the lock shell or retract into the lock shell; the manual unlocking assembly comprises a poking piece, the poking piece is rotatably installed in the lock shell through a poking piece installation column, the reversing block is provided with a clamping groove, one end of the poking piece stretches into the clamping groove to be matched with the clamping groove, the poking piece is driven to rotate through rotating the reversing block, the other end of the poking piece is matched with the square tongue poking piece and used for poking the square tongue poking piece to rotate, and then the square tongue is driven to retract into the lock shell. The lock with the lock core can drive the reversing block to rotate by rotating the inner handle of the door, the toggle arm toggles the inclined tongue to retract into the lock shell, the toggle piece pushes the square tongue toggle piece to rotate, and then the square tongue is driven to retract into the lock shell, so that the inclined tongue and the square tongue retract into the lock shell at the same time, the unlocking action is completed, the unlocking structure is simple, the reaction is quick, and the opposite tongue and the inclined tongue can be simultaneously unlocked by rotating the inner handle of the door, so that the lock with the lock core is very convenient to use.

In an embodiment of the invention, the manual unlocking assembly further comprises a power-assisted torsion spring, one end of the power-assisted torsion spring is connected with the plectrum mounting column, and the other end of the power-assisted torsion spring is connected with the square tongue plectrum and is used for providing rotary power for the square tongue plectrum. In this embodiment, set up helping hand torsional spring and provide pivoted helping hand for the tongue plectrum for manual unlocking action is more smooth and easy.

In one embodiment of the invention, the locking device further comprises a locking bolt assembly and a linkage locking assembly; the locking bolt assembly comprises a locking bolt and a locking bolt spring, the locking bolt is arranged in the lock shell and can slidably penetrate through the panel, the locking bolt spring is arranged at the rear end of the locking bolt and is used for always pushing the locking bolt to extend out of the lock shell, and the linkage locking assembly comprises a locking block, a locking block reset spring, a locking strip and a locking trigger piece; the lock block is arranged at the rear end of the inclined tongue in a vertically movable way and is used for propping against the inclined tongue when moving upwards to prevent the inclined tongue from retracting into the lock shell or releasing the inclined tongue when moving downwards to enable the inclined tongue to retract into the lock shell; the lock block reset spring is connected with the lock block and is used for applying upward acting force to the lock block; the elastic acting force of the locking bolt spring is larger than that of the locking block reset spring; the lock bar is arranged in the lock shell in a vertically movable mode, and the upper end of the lock bar is in linkage fit with the lock block; the locking trigger piece is rotatably arranged in the lock shell and is in linkage fit with the lock bar and the locking plug tongue; when the locking bolt extends out of the lock shell, the locking trigger piece is pressed so as to downwards press the locking strip, and the locking strip downwards moves to press the locking block, so that the locking block downwards moves to be separated from the rear end of the bolt; when the locking bolt is retracted into the lock housing, the locking trigger is released, whereby the locking bar is released, and the locking piece moves upward against the rear end of the bolt under the elastic force of the locking piece return spring. When the door is closed, the locking bolt is pressed into the lock shell by the door frame, and the lock block props against the rear end of the inclined bolt to prevent the inclined bolt from retracting into the lock shell through the linkage action of the linkage locking assembly, so that the door can be closed, and the inclined bolt can be locked.

In an embodiment of the invention, the locking trigger member includes a trigger shaft, and a first arm and a second arm fixed on a side wall of the trigger shaft, wherein the trigger shaft is rotatably installed in the lock case, the first arm is matched with the locking strip, and the second arm is matched with the locking plug tongue. The structure is very simple, the linkage fit of the locking inserting tongue and the locking strip can be realized by triggering the rotation of the rotating shaft, and the reaction is sensitive.

In an embodiment of the present invention, a locking bar baffle is disposed at a lower end of the locking bar, and the first arm is hooked to the locking bar baffle. The structural reliability of the present embodiment is very good.

In an embodiment of the invention, the interlocking assembly further includes an unlocking member rotatably installed in the lock case through a rotation shaft; the outer wall of the first stirring piece and/or the second stirring piece is provided with an unlocking push block, the unlocking push block is matched with one end of the unlocking piece and used for pushing the unlocking piece to rotate, the other end of the unlocking piece is matched with the locking block and used for enabling the locking block to move downwards when the unlocking push block pushes the unlocking piece to rotate, and the inclined tongue is released to enable the inclined tongue to retract into the lock shell. Because the first stirring piece and the second stirring piece are respectively connected with the door inner handle and the door outer handle, the unlocking piece can be pushed to rotate by rotating the door inner handle or the door outer handle, so that the locking effect on the inclined tongue is released, and then the inclined tongue is retracted into the lock shell through the stirring piece arm.

In an embodiment of the present invention, the automatic locking assembly further includes: the first bevel gear is rotatably arranged in the lock shell, the second bevel gear is meshed with the first bevel gear and used for driving the first bevel gear to rotate, the motor is connected with the second bevel gear and used for driving the second bevel gear to rotate, the first bevel gear is provided with a through hole, the square tongue poking piece comprises a poking piece rotating shaft and a poking piece arm, the poking piece arm is arranged on one side of the poking piece rotating shaft, the poking piece rotating shaft penetrates through the through hole and is rotatably arranged in the lock shell, the rear end of the square tongue connecting plate is provided with a groove, the free end of the poking piece arm is inserted into the groove of the square tongue connecting plate and used for poking the square tongue connecting plate to move, and the poking piece rotating shaft and the first bevel gear are matched to drive the square tongue poking piece to rotate by the rotation of the first bevel gear; when the motor rotates positively, the second bevel gear is driven to rotate positively, the second bevel gear drives the first bevel gear to do clockwise motion, the first bevel gear pushes the square tongue poking piece to rotate, the poking piece arm rotates by taking the poking piece rotating shaft as a rotating center, and therefore the square tongue connecting plate is pushed to move backwards, and the square tongue is retracted into the lock shell; when the motor reversely rotates, the second bevel gear is driven to reversely rotate, the second bevel gear drives the first bevel gear to anticlockwise move, the first bevel gear pushes the square tongue poking piece to rotate, the poking piece arm rotates by taking the poking piece rotating shaft as a rotating center, and accordingly the square tongue connecting plate is pushed to move forwards, and the square tongue extends out of the lock shell; the mortise lock further comprises a circuit control module for controlling the motor to work, wherein the circuit control module is connected with the motor and sends a control command to the motor so as to control the motor to work; the lock is characterized in that one side of the lock bolt assembly is provided with a lock bolt travel switch, the lock bolt travel switch is connected with the circuit control module, when the lock bolt is retracted into the lock shell, the lock bolt assembly triggers the lock bolt travel switch, the circuit control module controls the motor to work, and the circuit control module receives a signal to control the motor to rotate forward, so that the square bolt extends out of the lock shell. In the embodiment, the inclined tongue and the square tongue can be simultaneously locked after the door is closed, the structure is simple, the torque transmission is quick, and the reaction is very sensitive.

In an embodiment of the invention, the through hole of the first bevel gear comprises a circular hole part and a sector hole part which are communicated, a protruding block matched with the sector hole part is arranged on the outer wall of the stirring piece rotating shaft of the square tongue stirring piece, the stirring piece rotating shaft penetrates through the circular hole part, and the protruding block can movably extend into the sector hole part. The design makes the lock pin lock rotate through the motor when the door is closed, drives the second bevel gear to drive the first bevel gear to rotate, so that the square tongue poking piece is pushed to poke the square tongue to finish the locking action, and the first bevel gear cannot influence the rotation of the square tongue poking piece when the door is manually unlocked.

In an embodiment of the invention, a side tongue travel switch connected with the circuit control module is arranged at one side of the side tongue assembly, and when the side tongue extends out of the lock shell to lock, the side tongue travel switch is triggered, so that the circuit control module controls the motor to stop rotating.

In an embodiment of the present invention, the motor is connected with a counter, and the counter is used for calculating the rotation number of the motor, and controlling the motor to stop rotating when the rotation number of the motor reaches a preset value. The embodiment can accurately control the stop time of the motor, and has simpler structure and quicker response.

Compared with the prior art, the beneficial effects of the technical scheme are as follows:

the lock with the lock core can drive the reversing block to rotate by rotating the handle in the door, the toggle arm toggles the inclined tongue to retract into the lock shell, the toggle piece pushes the square tongue toggle piece to rotate, and then the square tongue is driven to retract into the lock shell, so that the inclined tongue and the square tongue retract into the lock shell at the same time to complete unlocking action.

Drawings

FIG. 1 is a schematic view of an embodiment of a mortise lock of the present invention;

FIG. 2 is a schematic illustration of an embodiment of the mortice lock of the invention in a locked condition;

FIG. 3 is a schematic illustration of an embodiment of the mortice lock of the invention in a manually unlocked condition within a door;

FIG. 4 is a schematic illustration of an embodiment of the mortice lock of the invention in an off-door, motor-unlocked transient condition;

FIG. 5 is a schematic illustration of an embodiment of the mortice lock of the invention in an unlocked condition;

FIG. 6 is a schematic view of an embodiment of a latch assembly of the mortise lock of the present invention;

FIG. 7 is an exploded view of the latch assembly of FIG. 6;

FIG. 8 is a perspective view of a portion of the construction of one embodiment of a mortise lock of the present invention;

FIG. 9 is a schematic view of an embodiment of a locking bar of the mortice lock of the invention;

FIG. 10 is a schematic structural view of an embodiment of a locking trigger of the mortise lock of the present invention;

FIG. 11 is a schematic view of the construction of one embodiment of the first bevel gear of the mortise lock of the present invention;

FIG. 12 is a schematic view of an embodiment of a tongue shifter of the mortise lock of the present invention;

fig. 13 is a schematic view of the motor and structure connected thereto of the mortise lock of the present invention.

Detailed Description

The technical scheme of the invention is clearly and completely described below by specific embodiments with reference to the accompanying drawings.

Referring to fig. 1 and 7, a mortise lock includes a lock case 11, a panel 12, a latch assembly 2, a square tongue assembly 3, a locking latch assembly 4, a linkage locking assembly 5, an automatic locking assembly 6, and a manual unlocking assembly 7. The panel 12 is arranged on one side of the lock shell 11 to seal the lock shell 11, and the inclined bolt component 2, the square bolt component 3, the locking bolt component 4 and the automatic locking component 6 are all arranged in the lock shell 11.

The tongue assembly 2 includes a tongue 21 and the tongue assembly 3 includes a tongue 31, and the locking tongue assembly 4 includes a locking tongue 41 and a locking tongue spring 42. The latch 21, the square tongue 31 and the locking tab 41 are all disposed within the lock housing 11 and slidably pass through the panel 12. The locking bolt spring 42 is arranged at the rear end of the locking bolt 41 and is used for always pushing the locking bolt 41 to extend out of the lock shell 11.

The interlocking lock assembly 5 includes a lock block 51, a lock block return spring 52, a lock bar 53, and a lock trigger 55. The locking piece 51 is movably disposed at the rear end of the latch 21, and is used for supporting the latch 21 when moving upwards to prevent the latch 21 from retracting into the lock housing 11 or releasing the latch 21 when moving downwards to enable the latch 21 to retract into the lock housing 11. The lock block return spring 52 is connected to the lock block 51 for applying an upward force to the lock block 51 so that the lock block 51 has a tendency to move upward. The spring force of the locking tongue spring 42 is greater than the spring force of the lock block return spring 52. The locking bar 53 is movably disposed in the lock case 11, and the upper end of the locking bar 53 is in linkage fit with the locking block 51, that is, when the locking bar 53 moves downward, the locking block 51 is driven to move downward, otherwise, when the locking block 51 moves upward, the locking bar 53 is driven to move upward. In one embodiment, as shown in fig. 9, the locking bar 53 has a hook structure 530 at an upper end thereof, and the hook structure 530 hooks the locking piece 51. The locking trigger 55 is rotatably mounted within the lock housing 11 and is in interlocking engagement with the locking bar 53 and the locking tab 41.

When the locking tongue 41 is extended out of the lock case 11, the locking trigger 55 is pressed to press the locking bar 53 downward, the locking bar 53 moves downward to press the locking piece 51 so that the locking piece 51 moves downward to be disengaged from the rear end of the tongue 21, and the tongue 21 is retracted into the lock case 11;

when the locking bolt 41 is retracted into the lock case 11, the locking trigger 55 is released, so that the locking bar 53 is released, and the locking piece moves upward against the rear end of the inclined bolt 21 under the elastic force of the locking piece return spring 52, and at this time, the inclined bolt 21 cannot be retracted into the lock case 11, and the locking function of the inclined bolt 21 is performed.

When the door is closed, the locking bolt 41 is pressed into the lock shell 11 by the door frame, and the locking block 51 props against the rear end of the inclined bolt 21 to prevent the inclined bolt 21 from retracting into the lock shell 11 through the linkage action of the linkage locking assembly 5, so that the door can be closed, and the inclined bolt 21 can be locked.

Herein, "front" means toward the direction approaching the panel 12, "rear" means toward the direction away from the panel 12, "up" means relatively upper when mounted on the door, and "down" means relatively lower when mounted on the door, as hereinafter the same.

In this embodiment, the lock block return spring 52 and the locking tab spring 42 are compression springs, but the invention is not limited thereto.

Referring to fig. 9 and 10, in an embodiment, the locking trigger 55 includes a trigger shaft 550, and a first arm 551 and a second arm 552 fixed on a side wall of the trigger shaft 550, where the trigger shaft 550 is rotatably installed in the lock case 11, the first arm 551 is engaged with the locking bar 53, and the second arm 552 is engaged with the locking plug 41. The structure is very simple, and the interlocking fit of the locking bolt 41 and the locking strip 53 can be realized by triggering the rotation of the rotating shaft 550. When the locking tongue 41 presses the second arm 552, the first arm 551 rotates to press the lower end of the locking bar 53, so that the locking bar 53 moves downward; when the second arm 552 is released from the locking tongue 41, the locking bar 53 is released, and the locking bar 53 is driven by the locking block 51 to move upwards, so that the locking bar 53 can drive the first arm 551 to rotate reversely, and the second arm 552 rotates reversely. The embodiment can realize the linkage fit of the locking bolt 41 and the locking strip 53 only through one element of the locking trigger piece 55, and has simple structure and sensitive response.

Referring to fig. 9 and 10, in an embodiment, the lower end of the locking bar 53 has a locking bar baffle 531, the first arm 551 is hooked to hook the locking bar baffle 531, and this structure has good reliability.

In this embodiment, the latch 21 is a bidirectional latch 21, and the design of the bidirectional latch 21 can increase the applicability of the mortise lock, regardless of the direction of the door opening.

Referring to fig. 5 and 6, the tongue assembly 2 further includes: the latch lever 22, the limiting plate 23, the first return spring 24, the limiting block 25, the second return spring 26 and the poking assembly 27 for poking the latch 21 to retract. The latch bolt rod 22 is connected with the rear end of the latch bolt 21, the limiting plate 23 is fixedly arranged on the lock shell 11, the first return spring 24 is sleeved outside the latch bolt rod 22 and is propped between the latch bolt 21 and the limiting plate 23, the latch bolt 21 is always pushed to extend out of the panel 12, the limiting block 25 is connected with the rear end of the latch bolt rod 22, one end of the second return spring 26 is connected with the limiting block 25, and the other end of the second return spring is connected with the lock shell 11.

The toggle assembly 27 comprises: the reversing block 271, the first stirring part 272 and the second stirring part 273 are respectively provided with stirring arms 274 for stirring the withdrawal of the inclined tongue 21, the first stirring part 272 and the second stirring part 273 are respectively arranged on two sides of the reversing block 271, one of the first stirring part 272 and the second stirring part 273 is fixedly connected with the reversing block 271, the other of the first stirring part 272 and the second stirring part 273 is rotatably connected with the reversing block 271, and the first stirring part 272 and the second stirring part 273 are respectively connected with an inner door handle and an outer door handle. The "the first toggle member 272 and the second toggle member 273 are used to be connected to the door inner handle and the door outer handle, respectively" includes two cases: one is that the first toggle member 272 is adapted to be coupled to an inside door handle and the second toggle member 273 is adapted to be coupled to an outside door handle; the other is that the first toggle member 272 is adapted to be coupled to an outside door handle and the second toggle member 273 is adapted to be coupled to an inside door handle.

The toggle assembly 27 is installed in the lock housing 11, and the toggle arms 274 of the first toggle member 272 and the second toggle member 273 are disposed on one side of the limiting block 25 and are used for respectively toggling the latch 21 to retract. The second return spring 26 provides an elastic restoring force for the limiting block 25, and when the force exerted on the limiting block 25 by the toggle assembly 27 is removed, the second return spring 26 rebounds the limiting block 25, so that the latch rod 22 and thus the latch 21 are pushed to extend from one side of the panel 12.

Because one of the first striking member 272 and the second striking member 273 is fixedly connected with the reversing block 271, the other one of the first striking member 272 and the second striking member 273 is rotatably connected with the reversing block 271, so that the first striking member 272 and the second striking member 273 can rotate relatively, when the first striking member 272 is rotated, the striking arm 274 of the first striking member 272 can strike the tongue 21 to retract, and the second striking member 273 does not need to rotate at this time; likewise, when the second striking member 273 is rotated, the striking arm 274 of the second striking member 273 can strike the tongue 21 to retract, and the first striking member 272 does not need to rotate at this time, so that the first striking member 272 and the second striking member 273 can independently control the tongue 21 to retract, and the first striking member 272 and the second striking member 273 do not affect each other. When the door is assembled and used, the first toggle member 272 and the second toggle member 273 are respectively connected with the door inner handle and the door outer handle, so that the door inner handle and the door outer handle can independently control the withdrawal of the inclined tongue 21, and the door inner handle and the door outer handle are more flexible and convenient to use.

Referring to fig. 6 and 7, the first toggle member 272 and the second toggle member 273 are provided with a handle mounting groove 2720 for mounting an inner door handle or an outer door handle, so as to mount the inner door handle and the outer door handle.

The first toggle member 272 is provided with a connecting column 2721, the reversing block 271 is provided with a first connecting hole 2711, the second toggle member 273 is provided with a second connecting hole 2731, and the connecting column 2721 sequentially passes through the first connecting hole 2711 and the second connecting hole 2731; the reversing block 271 is provided with a first fixing hole 2712, the first stirring member 272 and the second stirring member 273 are respectively provided with a second fixing hole 2702 corresponding to the first fixing hole 2712, and a screw is adopted to penetrate through the second fixing hole 2702 of the first stirring member 272 or the second stirring member 273 and the first fixing hole 2712 to fixedly connect the first stirring member 272 and the reversing block 271 or fixedly connect the second stirring member 273 and the reversing block 271. The structure is very simple, easy to assemble and easy to disassemble, and when the element fixedly connected with the reversing block 271 needs to be replaced, for example, the first stirring part 272 and the reversing block 271 are fixedly connected and converted into the second stirring part 273 and the reversing block 271, or vice versa, only the elements are required to be reinstalled through screws, so that the structure is very convenient.

The latch assembly 2 further includes a third return spring 28, a stop portion 221 is disposed at the rear end of the latch rod 22, a stepped limit through hole 251 is disposed on the limit block 25, the latch rod 22 passes through the limit through hole 251, and the third return spring 28 is sleeved outside the latch rod 22 and is pressed between the stop portion 221 and the step of the limit through hole 251. When the pulling arm 274 pulls the limiting block 25, the limiting block 25 firstly compresses the third reset spring 28, the third reset spring 28 pushes the stop part 221 of the inclined tongue lever 22 after being compressed to a certain extent, then the inclined tongue lever 22 drives the inclined tongue 21 to retract into the lock shell 11, and the third reset spring 28 provides a certain elastic force and has a buffering effect, so that the user experience is better when the inclined tongue 21 is retracted.

The outer wall of the limiting block 25 is provided with a limiting convex part 252, the lock shell 11 is provided with a limiting hole 111, and the limiting convex part 252 stretches into the limiting hole 111 and is in sliding fit with the limiting hole 111. The limiting hole 111 limits the sliding distance of the limiting convex part 252, so that the moving distance of the limiting block 25 is limited, the inclined tongue 21 is prevented from being retracted too far, and the limiting protection function is achieved. The limiting hole 111 is a long hole, and the limiting block 25 is an elliptical cylinder, but not limited thereto, and the present invention is not limited thereto.

Referring to fig. 1, 7 and 8, the interlocking locking assembly 5 further includes an unlocking member 56, and the unlocking member 56 is rotatably installed in the lock case 11 through a rotation shaft 561. In an embodiment, the outer walls of the first toggle member 272 and the second toggle member 273 are respectively provided with an unlocking push block 2732, the unlocking push blocks 2732 of the first toggle member 272 and the second toggle member 273 are respectively matched with one end of the unlocking member 56 for pushing the unlocking member 56 to rotate, and the other end of the unlocking member 56 is matched with the locking block 51 for enabling the locking block 51 to move downwards when the unlocking push block 2732 pushes the unlocking member 56 to rotate, so that the inclined tongue 21 is released, and the inclined tongue 21 can retract into the lock shell 11. Since the outer walls of the first toggle member 272 and the second toggle member 273 are provided with the unlocking push blocks 2732, and the two unlocking push blocks 2732 are matched with one end of the unlocking member 56, the first toggle member 272 and the second toggle member 273 are respectively connected with the door inner handle and the door outer handle, and therefore, when any one of the door inner handle and the door outer handle is rotated, the locking block 51 can be moved downwards, and the inclined tongue 21 can be smoothly retracted into the lock shell 11. However, in another embodiment, only the outer wall of one of the first toggle member 272 and the second toggle member 273 is provided with an unlocking push block 2732, and the first toggle member 272 or the second toggle member 273 provided with the unlocking push block 2732 is used for connection with an inside door handle, so that the latch 21 can be retracted into the lock housing 11 only by rotating the inside door handle, and the latch 21 cannot be retracted into the lock housing 11 by rotating the outside door handle, thereby avoiding the situation that the outside door can be opened when the door is locked only by the latch 21 (not locked by the latch 31).

Referring to fig. 1, the tongue assembly 3 further includes a tongue connecting plate 32, and the tongue connecting plate 32 is disposed at a rear end of the tongue 31 and is used for driving the tongue 31 to move forward to extend out of the lock case 11 or move backward to retract into the lock case 11. The rear end of the tongue piece 32 is provided with a groove 321.

Referring to fig. 1, 11 and 12, the automatic locking assembly 6 includes: the square tongue shifting member 61, the first bevel gear 62, the second bevel gear 63 and the motor 64, the first bevel gear 62 is rotatably installed in the lock shell 11, the second bevel gear 63 is meshed with the first bevel gear 62 and is used for driving the first bevel gear 62 to rotate, the motor 64 is connected with the second bevel gear 63 and is used for driving the second bevel gear 63 to rotate, the first bevel gear 62 is provided with a through hole 621, the square tongue shifting member 61 comprises a shifting member rotating shaft 611 and a shifting member arm 612, the shifting member arm 612 is arranged on one side of the shifting member rotating shaft 611, the shifting member rotating shaft 611 is rotatably installed in the lock shell 11 through the through hole 621, and the free end of the shifting member arm 612 is inserted into a groove 321 of the square tongue connecting plate 32 and is used for shifting the square tongue connecting plate 32 to move, and the shifting member rotating shaft 611 is matched with the first bevel gear 62 to drive the square tongue shifting member 61 to rotate by the rotation of the first bevel gear 62. When the motor 64 rotates in the forward direction, the second bevel gear 63 is driven to rotate in the forward direction (from left to right in the drawing), the second bevel gear 63 drives the first bevel gear 62 to rotate in the forward direction (i.e. move clockwise), the first bevel gear 62 pushes the square tongue poking member 61 to rotate, and the poking member arm 612 rotates with the poking member rotating shaft 611 as the rotation center, so that the square tongue connecting plate 32 is pushed to move backwards, and the square tongue 31 retracts into the lock case 11, thereby completing the unlocking action. When the motor 64 rotates reversely, the second bevel gear 63 is driven to rotate reversely (from right to left in the drawing), the second bevel gear 63 drives the first bevel gear 62 to rotate reversely (i.e. anticlockwise), the first bevel gear 62 pushes the square tongue pulling member 61 to rotate, and the pulling member arm 612 rotates with the pulling member rotating shaft 611 as the rotation center, so that the square tongue connecting plate 32 is pushed to move forwards, and the square tongue 31 extends out of the lock shell 11, so as to complete the locking action. In this embodiment, the first bevel gear 62 is a large gear, the second bevel gear 63 is a small gear, and the second bevel gear 63 is disposed on the upper surface of the first bevel gear 62.

Referring to fig. 1 and 2, generally, the mortise lock further includes a circuit control module 65 for controlling the operation of the motor 64, and the circuit control module 65 is connected to the motor 64 and sends a control command to the motor 64 to control the operation of the motor 64. In one embodiment, a locking bolt travel switch 43 is disposed on one side of the locking bolt assembly 4, the locking bolt travel switch 43 is connected to the circuit control module 65, and when the locking bolt 41 retracts into the lock case 11, the locking bolt assembly 4 triggers the locking bolt travel switch 43 to control the motor 64 to operate through the circuit control module 65. Specifically, when the door is closed, the locking bolt 41 is pressed into the lock shell 11 by the door frame, the locking bolt travel switch 43 is triggered, and the circuit control module 65 receives a signal to control the motor 64 to rotate forward, so that the square bolt 31 extends out of the lock shell 11, and thus the lock is automatically locked.

In an embodiment, a side of the tongue component 3 is provided with a tongue travel switch 33 connected with a circuit control module 65, and when the tongue 31 extends out of the lock shell 11 to lock, the tongue travel switch 33 is triggered, so that the circuit control module 65 controls the motor 64 to stop rotating, and the locking action is completed.

However, without limitation, as shown in fig. 13, in another embodiment, the motor 64 is connected with a counter 641, and the counter 641 is used for calculating the rotation number of the motor 64, and controlling the motor 64 to stop rotating when the rotation number of the motor 64 reaches a preset value. This allows for precise control of the number of turns of motor 64 and thus the displacement of tongue 31. The counter 641 may be an electromagnetic induction counter or an infrared induction counter, which have accurate counting effect, and the invention is not limited thereto. In one embodiment, the counter 641 includes a counting circuit board 6411, a counting terminal 6412, and a counting sensing block 6413, wherein the counting circuit board 6411 is connected with the motor 64, the counting terminal 6412 is connected with a rotating shaft of the motor 64 through a transmission, and the counting sensing block 6413 is disposed on one side of the counting terminal 6412 and connected with the counting circuit board 6411 for detecting the number of rotations of the counting terminal 6412. The rotational speed of the counting terminal 6412 is 150-250 times the rotational speed of the second bevel gear 63. The higher the rotation speed of the counter terminal 6412 relative to the rotation speed of the second bevel gear 63, the more precisely the rotation control of the second bevel gear 63, the more precisely the displacement of the tab 31 can be controlled, thereby precisely controlling the locking or unlocking of the tab 31. This embodiment, which controls when the motor 64 stops rotating through the counter 641, rather than through the flap travel switch 33, can achieve more accurate control. Since the tongue travel switch 33 needs to control the motor 64 to stop through the circuit control module 65, more electronic elements are involved, and the problem of response delay exists; in this embodiment, the counter 641 can directly control the motor 64 to stop, so that the control process is simpler and the reaction is faster than the control mode by the tongue travel switch 33.

Referring to fig. 1 and 8, the manual unlocking assembly 7 includes a pulling piece 71, the pulling piece 71 is rotatably mounted in the lock case 11 through a pulling piece mounting post 72, the reversing block 271 is provided with a clamping groove 2710, one end of the pulling piece 71 extends into the clamping groove 2710 to cooperate with the clamping groove 2710, and the pulling piece 71 is driven to rotate by rotating the reversing block 271. The other end of the pulling piece 71 is matched with a pulling piece arm 612 of the square tongue pulling piece 61, and the pulling piece arm 612 used for pulling the square tongue pulling piece 61 rotates clockwise, so that the square tongue 31 is driven to retract into the lock shell 11. Because the reversing block 271 is fixedly connected with the first toggle member 272 or the second toggle member 273, the first toggle member 272 and the second toggle member 273 are respectively connected with the door inner handle and the door outer handle, so that the square tongue 31 can be retracted into the lock housing 11 by rotating the door inner handle or the door outer handle, and the manual unlocking is completed. Normally, the user only wants to unlock the door by hand through the door handle, so that, when the door handle is installed, the first toggle member 272 or the second toggle member 273 connected with the door handle is fixedly connected with the reversing block 271, that is, if the door handle is connected with the first toggle member 272, the first toggle member 272 is fixedly connected with the reversing block 271, and the second toggle member 273 is rotatably connected with the reversing block 271; if the inside door handle is connected to the second toggle 273, the second toggle 273 is fixedly connected to the reversing block 271, and the first toggle 272 is rotatably connected to the reversing block 271. Thus, the door can only be unlocked manually by the inner handle, but the door cannot be unlocked manually when the outer handle rotates, and the unlocking can only be performed by swiping a card or inputting unlocking information such as a password, a fingerprint and the like, and the motor 64 rotates to drive the square tongue 31 to retract.

As shown in fig. 11, in order to make the tongue pulling member 61 rotate smoothly, that is, the rotation of the tongue pulling member 61 is not affected by the fixed first bevel gear 62, the through hole 621 of the first bevel gear 62 includes a circular hole portion 6211 and a fan-shaped hole portion 6212 which are communicated, the outer wall of the pulling member rotating shaft 611 of the tongue pulling member 61 is provided with a protruding block 6111 which is matched with the fan-shaped hole portion 6212, the pulling member rotating shaft 611 passes through the circular hole portion 6211, and the protruding block 6111 can be movably extended into the fan-shaped hole portion 6212. When the pulling piece 71 pushes the pulling piece arm 612 to rotate, the pulling piece arm 612 drives the pulling piece rotating shaft 611 to rotate, and at this time, the protruding block 6111 moves in the fan-shaped hole portion 6212, so that the first bevel gear 62 does not obstruct the rotation of the square tongue pulling piece 61, and the square tongue pulling piece 61 can smoothly push the square tongue 31 back into the lock shell 11, thereby completing the manual unlocking action. Further, when the motor 64 is designed to control the program, the motor 64 is rotated to design that the square tongue 31 extends out of the lock shell 11 to complete the locking action, the motor 64 reversely rotates by a certain angle, so that the first bevel gear 62 reversely rotates, and the protruding block 6111 on the dial rotating shaft 611 is changed from one end abutting against the fan-shaped hole 6212 to the other end abutting against the fan-shaped hole 6212, so that the protruding block 6111 can move in the fan-shaped hole 6212 when the manual unlocking is ensured, and the first bevel gear 62 can not block the rotation of the square tongue dial 61.

Referring to fig. 8, the manual unlocking assembly 7 further includes a booster torsion spring 73, one end of the booster torsion spring 73 is connected to the plectrum mounting post 72, and the other end is connected to the tongue plectrum 61, so as to provide a rotational booster for the tongue plectrum 61, when the plectrum 71 dials the tongue plectrum 61 to rotate clockwise to a certain angle, the booster torsion spring 73 can provide a torque force (booster) for the tongue plectrum 61 to rotate clockwise, that is, at this time, two forces (the thrust of the plectrum 71 and the torque force of the booster torsion spring 73) are applied to the tongue plectrum 61 to rotate clockwise, so that the tongue plectrum 61 rotates more easily, and the tongue 31 is driven to retract into the lock case 11 more smoothly. In this embodiment, the power-assisted torsion spring 73 is arranged to enable manual unlocking to be smoother, and use experience is better.

Referring to fig. 2-5, the core lock of the present invention operates as follows:

when the door is closed, the locking bolt 41 is pressed into the lock shell 11, at this time, the movement of the locking bolt 41 triggers the locking bolt travel switch 43, the circuit control module 65 controls the motor 64 to reversely rotate, drives the second bevel gear 63 to reversely rotate, the second bevel gear 63 drives the first bevel gear 62 to anticlockwise move, the first bevel gear 62 pushes the bolt pulling member 61 to rotate, the pulling member arm 612 rotates by taking the pulling member rotating shaft 611 as a rotation center, thereby pushing the bolt connecting plate 32 to move forwards, and the bolt connecting plate 32 pushes the bolt 31 to extend out of the lock shell 11, so that the locking action is completed, as shown in fig. 2. At this time, the latch 21 always protrudes out of the lock case 11. When the locking bolt 41 is pressed into the lock shell 11, the locking trigger piece 55 is released through the linkage action of the linkage locking assembly 5, so that the locking strip 53 is released, the locking piece 51 moves upwards against the rear end of the inclined bolt 21 under the elastic action of the locking piece reset spring 52 to prevent the inclined bolt 21 from retracting into the lock shell 11, so that the locking action of the inclined bolt 21 can be achieved when the door is closed, and at the moment, the locking strip 53 is driven by the locking piece 51 to move upwards.

After the door is closed, the door can be unlocked by rotating the handle in the door: when the door handle is rotated, the unlocking push block 2732 of the first toggle member 272 (or the second toggle member 273) connected to the door handle pushes the unlocking member 56 to rotate, the other end of the unlocking member 56 presses down the locking piece 51, so that the locking piece 51 removes the blocking effect on the latch 21, and at the same time, the toggle arm 274 of the first toggle member 272 (or the second toggle member 273) pushes the latch assembly 2 so that the latch 21 is smoothly retracted into the lock case 11, as shown in fig. 3. Meanwhile, since the first toggle member 272 (or the second toggle member 273) connected with the door inner handle is fixedly connected with the reversing block 271 during installation, the reversing block 271 can be rotated by rotating the door inner handle, the reversing block 271 rotates to drive the toggle piece 71 to rotate, the other end of the toggle piece 71 pushes the square tongue toggle member 61 to rotate, and the square tongue toggle member 61 pushes the square tongue connecting plate 32 to move, so that the square tongue 31 is driven to retract into the lock shell 11, and manual unlocking is realized, as shown in fig. 3, and the instant state of manual unlocking is realized.

After closing the door, the door outer handle can not be turned to unlock: when the door outer handle is rotated, the inclined tongue 21 can be retracted into the lock shell 11 in the same way as the door inner handle is rotated; however, since the reversing block 271 is not rotated, the tongue 31 remains extended from the lock housing 11, and thus, manual unlocking cannot be achieved by rotating the door outer handle.

When the door is opened, signals are transmitted to the circuit control module 65 through actions such as fingerprint input, password input, card swiping and face recognition, the circuit control module 65 controls the motor 64 to rotate positively to drive the second bevel gear 63 to rotate positively, the second bevel gear 63 drives the first bevel gear 62 to move clockwise, the first bevel gear 62 pushes the square tongue poking piece 61 to rotate, the poking piece arm 612 rotates by taking the poking piece rotating shaft 611 as a rotating center, and accordingly the square tongue connecting plate 32 is pushed to move backwards, and the square tongue connecting plate 32 drives the square tongue 31 to retract into the lock shell 11 to complete unlocking actions, as shown in fig. 4. At this time, the latch 21 is retracted into the lock case 11 by turning the door outer handle, as shown in fig. 5.

After the door is opened, as shown in fig. 5, the square tongue 31 is retracted into the lock case 11, the locking bolt 41 is extended out of the lock case 11 under the elastic force of the locking bolt spring 42, so that the locking bolt 41 presses the second arm 552 of the locking trigger 55, the first arm of the locking trigger 55 rotates to press the lower end of the lock bar 53 to move the lock bar 53 downward, and the elastic force of the locking bolt spring 42 is greater than the elastic force of the lock bar return spring 52, so that the lock bar 53 presses the lock bar 51 to move downward, and the lock bar 51 is separated from the rear end of the inclined tongue 21, so that the inclined tongue 21 can retract into the lock case 11 freely.

Although the present invention has been described in terms of the preferred embodiments, it is not intended to be limited to the embodiments, and any person skilled in the art can make any possible variations and modifications to the technical solution of the present invention by using the methods and technical matters disclosed above without departing from the spirit and scope of the present invention, so any simple modifications, equivalent variations and modifications to the above embodiments according to the technical matters of the present invention fall within the scope of the technical solution of the present invention.

Claims

1. The mortise lock is characterized by comprising a lock shell, a panel, a bevel bolt component and a square bolt component; the panel is arranged on one side of the lock shell to seal the lock shell, the inclined tongue component and the square tongue component are both arranged in the lock shell, the inclined tongue component comprises an inclined tongue, the square tongue component comprises a square tongue, the inclined tongue and the square tongue are both arranged in the lock shell and can pass through the panel in a sliding way,

the oblique tongue component also comprises a stirring component for stirring the oblique tongue to retract; the toggle assembly comprises a reversing block, a first toggle piece and a second toggle piece, one of the first toggle piece and the second toggle piece is fixedly connected with the reversing block, the other one of the first toggle piece and the second toggle piece is rotatably connected with the reversing block, the first toggle piece or the second toggle piece fixedly connected with the reversing block is used for being connected with an inner door handle, and the second toggle piece or the first toggle piece rotatably connected with the reversing block is used for being connected with an outer door handle;

the first stirring piece and the second stirring piece are respectively provided with a stirring arm for stirring the inclined tongue to retract;

the square tongue assembly further comprises a square tongue connecting plate, wherein the square tongue connecting plate is arranged at the rear end of the square tongue and is used for driving the square tongue to move forwards to extend out of the lock shell or move backwards to retract into the lock shell;

the lock pin lock also comprises an automatic locking assembly and a manual unlocking assembly, wherein the automatic locking assembly comprises a square tongue poking piece which is rotatably arranged in the lock shell and used for poking a square tongue connecting plate so as to drive the square tongue to extend out of the lock shell or retract into the lock shell;

the manual unlocking assembly comprises a poking piece, the poking piece is rotatably arranged in the lock shell through a poking piece mounting column, the reversing block is provided with a clamping groove, one end of the poking piece stretches into the clamping groove to be matched with the clamping groove, the poking piece is driven to rotate through rotating the reversing block, and the other end of the poking piece is matched with the square tongue poking piece and used for poking the square tongue poking piece to rotate so as to drive the square tongue to retract into the lock shell;

the manual unlocking assembly further comprises a power-assisted torsion spring, one end of the power-assisted torsion spring is connected with the plectrum mounting column, and the other end of the power-assisted torsion spring is connected with the square tongue plectrum and is used for providing rotary power for the square tongue plectrum;

the locking device also comprises a locking bolt assembly and a linkage locking assembly; the locking bolt component comprises a locking bolt and a locking bolt spring, the locking bolt is arranged in the lock shell and can pass through the panel in a sliding way, the locking bolt spring is arranged at the rear end of the locking bolt and is used for always pushing the locking bolt to extend out of the lock shell,

the linkage locking assembly comprises a locking block, a locking block reset spring, a locking bar and a locking trigger piece;

the lock block is arranged at the rear end of the inclined tongue in a vertically movable way and is used for propping against the inclined tongue when moving upwards to prevent the inclined tongue from retracting into the lock shell or releasing the inclined tongue when moving downwards to enable the inclined tongue to retract into the lock shell;

the lock block reset spring is connected with the lock block and is used for applying upward acting force to the lock block; the elastic acting force of the locking bolt spring is larger than that of the locking block reset spring;

the lock bar is arranged in the lock shell in a vertically movable mode, and the upper end of the lock bar is in linkage fit with the lock block;

the locking trigger piece is rotatably arranged in the lock shell and is in linkage fit with the lock bar and the locking plug tongue;

when the locking bolt extends out of the lock shell, the locking trigger piece is pressed so as to downwards press the locking strip, and the locking strip downwards moves to press the locking block, so that the locking block downwards moves to be separated from the rear end of the bolt;

when the locking bolt is retracted into the lock shell, the locking trigger is released, so that the locking bar is released, and the locking block moves upwards to abut against the rear end of the bolt under the elastic action of the locking block reset spring;

the locking trigger piece comprises a trigger rotating shaft, a first arm and a second arm, wherein the first arm and the second arm are fixedly arranged on the side wall of the trigger rotating shaft, the trigger rotating shaft is rotatably arranged in the lock shell, the first arm is matched with the lock bar, and the second arm is matched with the locking insert tongue;

the lower end of the locking strip is provided with a locking strip baffle, and the first arm is hooked and hooks the locking strip baffle;

the linkage locking assembly further comprises an unlocking piece, and the unlocking piece is rotatably arranged in the lock shell through a rotating shaft;

the outer wall of the first stirring piece and/or the second stirring piece is provided with an unlocking push block, the unlocking push block is matched with one end of the unlocking piece and used for pushing the unlocking piece to rotate, and the other end of the unlocking piece is matched with the locking block and used for enabling the locking block to move downwards when the unlocking push block pushes the unlocking piece to rotate so as to release the inclined tongue and enable the inclined tongue to retract into the lock shell;

one side of the square tongue component is provided with a square tongue travel switch connected with the circuit control module, and when the square tongue extends out of the lock shell to lock, the square tongue travel switch is triggered, so that the circuit control module controls the motor to stop rotating;

the motor is connected with a counter, the counter is used for calculating the rotation number of the motor, and when the rotation number of the motor reaches a preset value, the motor is controlled to stop rotating.

2. The mortise lock according to claim 1 wherein,

the automatic locking assembly further comprises: the first bevel gear is rotatably arranged in the lock shell, the second bevel gear is meshed with the first bevel gear and used for driving the first bevel gear to rotate, the motor is connected with the second bevel gear and used for driving the second bevel gear to rotate, the first bevel gear is provided with a through hole, the square tongue poking piece comprises a poking piece rotating shaft and a poking piece arm, the poking piece arm is arranged on one side of the poking piece rotating shaft, the poking piece rotating shaft penetrates through the through hole and is rotatably arranged in the lock shell, the rear end of the square tongue connecting plate is provided with a groove, the free end of the poking piece arm is inserted into the groove of the square tongue connecting plate and used for poking the square tongue connecting plate to move, and the poking piece rotating shaft and the first bevel gear are matched to drive the square tongue poking piece to rotate by the rotation of the first bevel gear; when the motor rotates positively, the second bevel gear is driven to rotate positively, the second bevel gear drives the first bevel gear to do clockwise motion, the first bevel gear pushes the square tongue poking piece to rotate, the poking piece arm rotates by taking the poking piece rotating shaft as a rotating center, and therefore the square tongue connecting plate is pushed to move backwards, and the square tongue is retracted into the lock shell; when the motor reversely rotates, the second bevel gear is driven to reversely rotate, the second bevel gear drives the first bevel gear to anticlockwise move, the first bevel gear pushes the square tongue poking piece to rotate, the poking piece arm rotates by taking the poking piece rotating shaft as a rotating center, and accordingly the square tongue connecting plate is pushed to move forwards, and the square tongue extends out of the lock shell;

the mortise lock further comprises a circuit control module for controlling the motor to work, wherein the circuit control module is connected with the motor and sends a control command to the motor so as to control the motor to work;

the lock is characterized in that one side of the lock bolt assembly is provided with a lock bolt travel switch, the lock bolt travel switch is connected with the circuit control module, when the lock bolt is retracted into the lock shell, the lock bolt assembly triggers the lock bolt travel switch, the circuit control module controls the motor to work, and the circuit control module receives a signal to control the motor to rotate forward, so that the square bolt extends out of the lock shell.

3. The mortise lock according to claim 2 wherein the through hole of the first bevel gear includes a circular hole portion and a sector hole portion that are in communication, a dial-piece rotating shaft outer wall of the square-tongue dial is provided with a projection that mates with the sector hole portion, the dial-piece rotating shaft passes through the circular hole portion, and the projection movably extends into the sector hole portion.