CN220117921U - Door lock with reversing device - Google Patents

Abstract

The utility model discloses a door lock with a reversing device, which comprises a shell, a lock tongue assembly and a reversing device, wherein the reversing device is provided with a motor, a speed reduction tooth set, a reversing tooth set and a driving tooth set, the motor is in transmission connection with the speed reduction tooth set through a worm, the reversing tooth set is in driving engagement with or separation from the driving tooth set through the speed reduction tooth set, and the reversing tooth set drives the driving tooth set to drive the lock tongue assembly to move when engaging with the driving tooth set. According to the utility model, the reversing device is configured into the motor, the speed reducing gear set, the reversing gear set and the driving gear set, and the motor is connected with the speed reducing gear set through the turbine, so that the reversing device has a self-locking function, the spring bolt is prevented from being ejected out of the shell under the driving of the reset spring, and the reversing gear set is meshed with or separated from the driving gear set through the driving of the speed reducing gear set, so that the driving direction of the reversing gear set to the driving gear set can be changed by changing the output direction of the motor, the bidirectional driving of the driving gear set is realized, and further the bidirectional driving of the spring bolt assembly is realized, so that the spring bolt can movably extend out of or retract into the shell.

Description

Door lock with reversing device

Technical Field

The utility model relates to a door lock, in particular to a door lock with a reversing device.

Background

The existing electronic door lock adopts a bidirectional driving motor to realize bidirectional movement of the lock tongue, and the lock tongue retracted into the lock body is easy to pop out of the shell under the action of the reset spring because the existing bidirectional driving motor lacks a self-locking function, and in order to avoid the lock tongue from popping out of the shell under the action of the reset spring, a stop or a limiting structure is required to be additionally arranged, so that the whole structure of the door lock is complex.

Disclosure of Invention

The utility model aims to provide a door lock with a reversing device, which solves the problem that a bidirectional driving motor in the current door lock lacks a self-locking function, and a lock tongue retracted into a lock body is easy to pop out of a shell under the driving of a reset spring.

The utility model is realized by the following technical scheme:

the door lock with the reversing device comprises a shell and a lock tongue assembly, and further comprises a reversing device, wherein the lock tongue assembly is driven by the reversing device, the reversing device is provided with a motor, a speed reduction gear set, a reversing gear set and a driving gear set, the lock tongue assembly is provided with a lock tongue, the motor is in transmission connection with the speed reduction gear set through a worm, the reversing gear set is in driving engagement with or separation from the driving gear set through the speed reduction gear set, and the reversing gear set can drive the driving gear set to drive the lock tongue assembly to move when being engaged with the driving gear set, so that the lock tongue stretches out of or stretches into the shell.

Further, the reversing gear group is provided with a driving gear, a reversing gear and a swinging piece, the driving gear is in transmission connection with the speed reduction gear group, the swinging piece is in rotation connection with the driving gear, and the reversing gear is meshed with the driving gear and is abutted against the swinging piece; when the driving gear rotates, the swinging piece and the reversing gear are driven to rotate by taking the joint of the swinging piece and the driving gear as an axle center, so that the reversing gear is meshed with or separated from the driving tooth set, and when the reversing gear is meshed with the driving tooth set, the driving tooth set can be driven to drive the lock tongue assembly to move, so that the lock tongue stretches out or retracts into the shell.

Further, the middle part of the swinging piece is rotationally connected to the driving gear, the number of the reversing gears is 2, the two reversing gears are located on two opposite sides of the driving gear, the shell is provided with the accommodating groove for accommodating the swinging piece, and when any reversing gear is meshed with the driving gear group, the two ends of the swinging piece are abutted to the accommodating groove to stop rotating.

Further, an elastic piece is arranged on one side of the reversing gear, which is opposite to the swinging piece, and the elastic piece elastically contracts in the axial direction of the reversing gear to enable the reversing gear to abut against the swinging piece.

Further, the reversing gear is provided with a rotating shaft which is rotationally connected with the swinging piece.

Further, the speed reduction gear group is provided with a gear shell, a first input gear, a second input gear and an output gear, the first input gear, the second input gear and the output gear are accommodated in the gear shell, the first input gear and the second input gear are coaxial gears, the first input gear is meshed with the worm, the second input gear is meshed with the output gear, an output shaft extending out of the gear shell is arranged on the output gear, and the driving gear is connected to the output shaft and rotates synchronously with the output gear.

Further, the driving gear set is provided with a main gear, a pinion gear and a rack, the main gear is used for being meshed with the reversing gear set which moves in place, the pinion gear is a coaxial gear with the main gear and is meshed with the rack, and the rack is used for driving the lock tongue assembly; and when the main gear is meshed with the reversing gear group, the auxiliary gear is driven to drive the rack, so that the lock tongue is driven to move.

Further, the spring bolt assembly is provided with a sliding seat and a spring bolt, the sliding seat is connected to the shell in a sliding mode, the spring bolt is connected to the sliding seat, the rack is provided with a push rod used for pushing the sliding seat, and the spring bolt moves to extend out of or retract into the shell when the push rod pushes the sliding seat.

Further, the lock tongue assembly is provided with a latch tongue assembly and a square tongue assembly, the sliding seat is provided with a latch tongue sliding seat and a square tongue sliding seat, the lock tongue is provided with a latch tongue and a square tongue, the latch tongue is connected to the latch tongue sliding seat and forms the latch tongue assembly with the latch tongue sliding seat, the square tongue is connected to the square tongue sliding seat and forms the square tongue assembly with the square tongue sliding seat, the latch tongue sliding seat and the square tongue sliding seat are arranged at intervals up and down, the push rod is provided with a latch tongue push rod and a square tongue push rod, the latch tongue push rod and the square tongue push rod are arranged at intervals in the up-down direction and the moving direction of the rack, the latch tongue push rod is used for pushing against the latch tongue sliding seat, the latch tongue moves to stretch out or shrink into the shell when the latch tongue push rod pushes against the latch tongue sliding seat, and the square tongue moves to stretch out or shrink into the shell when the square tongue push rod pushes against the latch tongue sliding seat.

Further, an unlocking block is rotatably connected to the housing, and when the reversing tooth set is separated from the driving tooth set, the unlocking block rotates relative to the housing to drive the driving tooth set to drive the lock tongue assembly to move, so that the lock tongue is retracted into the housing.

The technical scheme has the advantages that the reversing device for driving the lock tongue assembly to move is configured into the motor, the speed reducing gear set, the reversing gear set and the driving gear set, wherein the motor and the speed reducing gear set are connected through the turbine to form the turbine worm structure, so that the reversing device has a self-locking function, the lock tongue is prevented from being ejected out of the shell under the driving of the reset spring, and the reversing gear set is meshed with or separated from the driving gear set under the driving of the speed reducing gear set, so that the driving direction of the reversing gear set to the driving gear set can be changed by changing the output direction of the motor, the bidirectional driving of the driving gear set is realized, and further the bidirectional driving of the lock tongue assembly is realized, so that the lock tongue can be movably stretched out or contracted into the shell.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below.

Fig. 1 is a front view of a door lock with a reversing device according to an embodiment of the disclosure;

fig. 2 is a front view (hidden part of the housing) of the door lock with the reversing device disclosed in the embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a front view of a door lock with a reversing device (concealing a portion of the housing and a portion of the unlocking block) disclosed in the embodiment;

FIG. 5 is an assembled perspective view of the tongue assembly, reversing device, unlocking lever and unlocking block;

FIG. 6 is an assembled partially exploded view of the tongue assembly, reversing device, unlocking lever and unlocking block;

FIG. 7 is an assembled partially exploded view of the tongue assembly, reversing device, unlocking lever and unlocking block

Fig. 8 is a perspective view of the unlocking lever.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: as shown in fig. 1-8, the door lock with the reversing device comprises a shell 1, a lock tongue assembly 2 and a reversing device 3, wherein the lock tongue assembly 2 and the reversing device 3 are arranged in the shell 1, the lock tongue assembly 2 is driven by the reversing device 3, the reversing device 3 is provided with a motor 301, a speed reducing tooth set 302, a reversing tooth set 303 and a driving tooth set 304, the lock tongue assembly 2 is provided with a lock tongue, the motor 301 is in transmission connection with the speed reducing tooth set 302 through a worm (not shown in the drawing), the reversing tooth set 303 is in driving engagement with or disengagement from the driving tooth set 304 by the speed reducing tooth set 302, and the driving tooth set 304 can be driven to drive the lock tongue assembly 2 to move when the reversing tooth set 303 is in engagement with the driving tooth set 304, so that the lock tongue stretches out or retracts into the shell 1. The present embodiment provides a door lock with a reversing device, so as to solve the problem that a bidirectional driving motor in the current door lock lacks a self-locking function, and a lock tongue retracted into a lock body is easy to eject out of a housing under the driving of a return spring, mainly by configuring a reversing device 3 for driving a lock tongue assembly 2 to move into a motor 301, a speed reduction gear set 302, a reversing gear set 303 and a driving gear set 304, wherein the reversing device 3 has a self-locking function due to the fact that the motor 301 and the speed reduction gear set 302 are connected through a turbine to form a turbine worm structure, so that the lock tongue is prevented from ejecting out of the housing 1 under the driving of the return spring, wherein the reversing gear set 303 is driven by the speed reduction gear set 302 to engage or disengage from the driving gear set 304, so that the driving direction of the reversing gear set 303 to the driving gear set 304 can be changed by changing the output direction of the motor 301, and further the bidirectional driving of the lock tongue assembly 2 is realized, and the lock tongue can be moved out of or retracted into the housing 1.

In the embodiment of the present utility model, the reversing gear set 303 has a driving gear 305, a reversing gear 306 and a swinging member 307, the driving gear 305 is in transmission connection with the speed reducing gear set 302, the swinging member 307 is in rotational connection with the driving gear 305, the reversing gear 306 is meshed with the driving gear 305 and abuts against the swinging member 307, when the driving gear 305 rotates, the swinging member 307 and the reversing gear 306 are driven to rotate with the connection part of the swinging member 307 and the driving gear 305 as an axis, so that the reversing gear 306 is meshed with or separated from the driving gear set 304, and when the reversing gear 306 is meshed with the driving gear set 304, the driving gear set 304 can be driven to drive the lock tongue assembly 2 to move, so that the lock tongue extends out of or retracts into the housing 1. Since the reversing gear set 303 is provided with the driving gear 305, the reversing gear 306 and the swinging member 307, the driving gear 305 is in transmission connection with the speed reduction gear set 302, the swinging member 307 is in rotation connection with the driving gear 305, the reversing gear 306 is meshed with the driving gear 305 and abuts against the swinging member 307, so that the swinging member 307 and the reversing gear 306 can be driven to rotate by taking the connecting part of the swinging member 307 and the driving gear 305 as the axis when the driving gear 305 rotates, the reversing gear 306 is meshed with the driving gear set 304 to drive the lock tongue assembly 2 to move, and the lock tongue stretches out or stretches into the shell 1.

In the embodiment of the present utility model, the middle part of the swinging member 307 is rotatably connected to the driving gear 305, the number of reversing gears 306 is 2, two reversing gears 306 are located on two opposite sides of the driving gear 305, the housing 1 has a receiving groove 101 for receiving the swinging member 307, and when any reversing gear 306 engages with the driving gear set 304, two ends of the swinging member 307 abut against the receiving groove 101 to stop rotating. Since the swinging member 307 is accommodated in the accommodating groove 101 and abuts against the accommodating groove 101 to stop rotating when the reversing gears 306 are meshed with the driving gear set 304, the number of the reversing gears 306 is 2 and are separately arranged on two opposite sides of the driving gear 305, and therefore, on the premise of realizing bidirectional driving of the driving gear set 304, the moving stroke of the reversing gears 306 is shortened, and the structure is more compact and reasonable.

In the embodiment of the present utility model, an elastic member 308 is disposed on a side of the reversing gear 306 opposite to the swinging member 307, and the elastic member 308 elastically contracts in the axial direction of the reversing gear 306 to make the reversing gear 306 abut against the swinging member 307. Since the side of the reversing gear 306 facing away from the swinging member 307 is provided with the elastic member 308 for abutting the reversing gear 306 against the swinging member 307, the reversing gear 306 can rotate with the swinging member 307 about the joint of the swinging member 307 and the driving gear 305 as the axis to engage with or disengage from the driving gear set 304 when the driving gear 305 rotates.

In the embodiment of the present utility model, the reversing gear 306 has a rotating shaft 309 rotatably connected to the swinging member 307, and the elastic member 308 is disposed on the rotating shaft 309 in a penetrating manner. Since the swinging member 307 is provided with the rotating shaft 309 rotatably connected with the reversing gear 306, the reversing gear 306 has better following property and stability when rotating along with the swinging member 307 around the joint of the swinging member 307 and the driving gear 305.

In the embodiment of the present utility model, the speed reducing gear set 302 has a gear housing (not shown), a first input gear (not shown), a second input gear (not shown), and an output gear (not shown), where the first input gear, the second input gear, and the output gear are accommodated in the gear housing, the first input gear and the second input gear are coaxial gears, the first input gear is meshed with the worm, the second input gear is meshed with the output gear, an output shaft 310 extending out of the gear housing is provided on the output gear, and the driving gear 305 is connected to the output shaft 310 and rotates synchronously with the output gear.

In the embodiment of the present utility model, the driving gear set 304 has a main gear 311, a pinion gear 312 and a rack 313, the main gear 311 is used for meshing with the reversing gear 306 that moves in place, the pinion gear 312 is a coaxial gear with the main gear 311 and meshes with the rack 313, the rack 313 is used for driving the latch bolt assembly 2, and when the main gear 311 meshes with the reversing gear 306, the pinion gear 312 is driven to drive the rack 313, so as to drive the latch bolt to move. Since the driving tooth set 304 has the main gear 311 meshed with the reversing tooth set 303, the rack 313 driving the latch bolt assembly 2 to move, and the pinion 312 synchronously rotating with the main gear 311 to drive the rack 313 to move, the driving tooth set 304 can drive the latch bolt assembly 2 to retract or extend the latch bolt from the housing 1 under the driving of the reversing tooth set 303.

In the embodiment of the present utility model, the latch bolt assembly 2 has a sliding seat slidably connected to the housing 1 and a latch bolt connected to the sliding seat, and the rack 313 has a push rod 314 for pushing the sliding seat, where the push rod 314 pushes the sliding seat to drive the latch bolt to move out of or retract into the housing 1. Since the latch bolt assembly 2 has a slide and a latch bolt, the rack 313 has a push rod 314 for pushing the slide, so that the slide can be driven by the push rod 314 to move to drive the latch bolt to extend out of or retract into the housing 1.

In the embodiment of the utility model, the latch bolt assembly 2 has a latch bolt assembly 203 and a latch bolt assembly 204, the slide seat has a latch bolt slide seat 205 and a latch bolt slide seat 206, the latch bolt has a latch bolt 207 and a latch bolt 208, the latch bolt 207 is connected to the latch bolt slide seat 205 and forms the latch bolt assembly 203 with the latch bolt slide seat 205, the latch bolt 208 is connected to the latch bolt slide seat 206 and forms the latch bolt assembly 204 with the latch bolt slide seat 206, the latch bolt slide seat 205 and the latch bolt slide seat 206 are arranged at intervals up and down, the push rod 314 has a latch bolt push rod 315 and a latch bolt push rod 316, the latch bolt push rod 315 is used for pushing the latch bolt slide seat 205, the latch bolt push rod 316 is used for pushing the latch bolt slide seat 206, when the latch bolt push rod 315 pushes the latch bolt slide seat 205, the latch bolt 207 is driven to move to extend or retract into the shell 1, and the latch bolt push rod 316 drives the latch bolt 208 to move to extend or retract into the shell 1 when pushing the latch bolt slide seat 206. Since the latch bolt assembly 2 has the latch bolt assembly 203 and the square bolt assembly 204, the safety of the door lock can be improved.

In the embodiment of the utility model, an unlocking rod 401 and an unlocking block 402 are movably connected to the housing 1, the unlocking rod 401 can move against the reversing tooth set 303 relative to the housing 1 to enable the reversing tooth set 303 to move away from the driving tooth set 304, and the unlocking block 402 can rotate relative to the housing 1 to drive the driving tooth set 304 to drive the lock tongue assembly 2 to move when the reversing tooth set 303 is separated from the driving tooth set 304, so that the lock tongue is retracted into the housing 1. Since the unlocking rod 401 can move relative to the housing 1 to push the reversing tooth set 303 to move the reversing tooth set 303 away from the driving tooth set 304, and the unlocking block 402 can rotate relative to the housing 1 when the reversing tooth set 303 is separated from the driving tooth set 304 to drive the lock tongue assembly 2 to move so as to enable the lock tongue to retract into the housing 1, the problem that the lock cannot be unlocked due to self-locking of the motor 301 and the speed reducing tooth set 302 when the motor 301 fails can be avoided, and the safety of the lock is improved.

In the embodiment of the present utility model, when the unlocking lever 401 moves relative to the housing 1 to push the swinging member 307, the swinging member 307 and the reversing gear 306 rotate around the connection point of the swinging member 307 and the driving gear 305, so that the reversing gear 306 is separated from the driving gear set 304. As the unlocking rod 401 moves relative to the housing 1 to push the swinging member 307, the swinging member 307 and the reversing gear 306 rotate around the joint of the swinging member 307 and the driving gear 305, the reversing gear 306 is separated from the driving gear set 304, and the unlocking block 402 drives the driving gear set 304 to drive the lock tongue to retract into the housing 1, so that unlocking of the door body is realized.

In the embodiment of the present utility model, the unlocking lever 401 is provided with a pushing inclined plane 403 on a side opposite to the swinging member 307, the swinging member 307 is provided with a pushing plane 317 on a side opposite to the unlocking lever 401, and when the unlocking lever 401 moves to push the swinging member 307, a part of the pushing inclined plane 403 is abutted against the pushing plane 317 to enable the swinging member 307 and the reversing gear 306 to rotate around the joint of the swinging member 307 and the driving gear 305 as an axis, so that the reversing gear 306 is separated from the main gear 311. Correspondingly, the number of the pushing surfaces 317 is 2, the two pushing surfaces 317 are respectively disposed on the same side as the two reversing gears 306 and correspond to each other one by one, the swinging member 307 is provided with a contact surface 318 between the two pushing surfaces 317, and the pushing inclined surface 403 is attached to the contact surface 318 when pushing the reversing gears 306 away from the driving gear set 304.

In the embodiment of the utility model, the unlocking rod 401 has an unlocking state and a resetting state, in the resetting state, the lower end of the unlocking rod 401 is arranged at intervals with the reversing tooth group 303, in the unlocking state, the lower end of the unlocking rod 401 pushes against the reversing tooth group 303, the shell 1 is provided with the long through hole 102, the unlocking rod 401 is provided with the deflector rod 404, the deflector rod 404 extends out of the shell 1 from the long through hole 102 and can move along the long through hole 102, and when the deflector rod 404 moves along the long through hole 102, the unlocking rod 401 is switched between the unlocking state and the resetting state. Because the unlocking rod 401 is provided with the deflector rod 404 extending out of the shell 1, when the motor 301 fails, an operator can drive the reversing tooth set 303 to move away from the driving tooth set 304 by pulling the deflector rod 404, so that the operation is simple and quick.

In the embodiment of the present utility model, the unlocking lever 401 has a clamping fork 405, a connecting rod 406, a stop lever 407 and a pushing block 408, where the clamping fork 405, the connecting rod 406 and the pushing block 408 are sequentially connected, the stop lever 407 is connected to the connecting rod 406 to form a pushing top 409 with the connecting rod 406, the driving lever 404 is connected to the pushing block 408, the clamping fork 405 is in clamping engagement with the unlocking block 402, and the pushing block 408 is disposed at intervals with the reversing tooth set 303 in the reset state of the unlocking lever 401 and pushes the reversing tooth set 303 in the unlocking state of the unlocking lever 401. Since the unlocking rod 401 is provided with the clamping fork 405 matched with the unlocking block 402 in a clamping way, the assembly stability of the unlocking rod 401 is higher, and the unlocking rod is prevented from shifting when moving relative to the shell 1.

In the embodiment of the present utility model, the housing 1 is provided with a reset lever 410 for moving the unlocking lever 401 away from the reversing tooth set 303, one end of the reset lever 410 is connected to the housing 1, the other end of the reset lever 410 abuts against the abutting portion 409, and the reset lever 410 has elasticity, and has an elastic tendency to drive the unlocking lever 401 to move away from the reversing tooth set 303. Since the unlocking assembly has the reset lever 410 for moving the unlocking lever 401 away from the reversing tooth set 303, the unlocking lever 401 is far away from the reversing tooth set 303 when the door lock is used normally, and interference to the reversing tooth set 303 is avoided.

In the embodiment of the present utility model, the unlocking block 402 is rotatably connected to the main gear 311 and coaxially disposed with the main gear 311, a first pushing handle 319 is disposed on a side of the main gear 311 opposite to the auxiliary gear 312, and a second pushing handle 411 is disposed on a side of the unlocking block 402 opposite to the main gear 311, where the second pushing handle 411 can cooperate with the first pushing handle 319 to push the main gear 311 when the reversing gear set 303 is separated from the main gear 311. Since the unlocking block 402 is rotatably connected to the main gear 311 and has the second pushing handle 411 that is in pushing fit with the first pushing handle 319, when the reversing gear group 303 is separated from the main gear 311, the unlocking block 402 can drive the main gear 311 to rotate so as to retract the lock tongue into the housing 1, thereby realizing unlocking of the door lock.

It should be understood that the terms "first," "second," and the like are used herein to describe various information, but such information should not be limited to these terms, which are used merely to distinguish one type of information from another. For example, a "first" message may also be referred to as a "second" message, and similarly, a "second" message may also be referred to as a "first" message, without departing from the scope of the utility model. Furthermore, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience in describing the present utility model and simplifying the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The foregoing description of one or more embodiments provided in connection with the specific disclosure is not intended to limit the practice of the utility model to such description. Any approximation, or substitution of the technical deduction or substitution made for the technical deduction of the present utility model based on the inventive method, structure, etc. shall be considered as protection of the present utility model.

Claims (10)

1. The door lock with the reversing device comprises a shell and a lock tongue assembly, and is characterized by further comprising a reversing device, wherein the lock tongue assembly is driven by the reversing device, the reversing device is provided with a motor, a speed reduction tooth set, a reversing tooth set and a driving tooth set, the lock tongue assembly is provided with a lock tongue, the motor is in transmission connection with the speed reduction tooth set through a worm, the reversing tooth set is in driving engagement with or separation from the driving tooth set by the speed reduction tooth set, and the lock tongue assembly can be driven by the driving tooth set to extend or retract into the shell when the reversing tooth set is engaged with the driving tooth set.

2. The door lock with a reversing device according to claim 1, wherein the reversing tooth set has a driving gear, a reversing gear and a swinging member, the driving gear is in driving connection with the speed reduction tooth set, the swinging member is in rotational connection with the driving gear, and the reversing gear is meshed with the driving gear and is abutted against the swinging member;

when the driving gear rotates, the swinging piece and the reversing gear are driven to rotate by taking the joint of the swinging piece and the driving gear as an axle center, so that the reversing gear is meshed with or separated from the driving tooth set, and when the reversing gear is meshed with the driving tooth set, the driving tooth set can be driven to drive the lock tongue assembly, so that the lock tongue stretches out or retracts into the shell.

3. The door lock with the reversing device according to claim 2, wherein the middle part of the swinging piece is rotatably connected to the driving gear, the number of the reversing gears is 2, two reversing gears are located on two opposite sides of the driving gear, the shell is provided with a containing groove for containing the swinging piece, and when any reversing gear is meshed with the driving gear group, two ends of the swinging piece are propped against the containing groove to stop rotating.

4. A door lock with a reversing device according to claim 2 or 3, wherein an elastic member is provided on a side of the reversing gear facing away from the swinging member, and the elastic member elastically contracts in an axial direction of the reversing gear so that the reversing gear abuts against the swinging member.

5. A door lock with a reversing device according to claim 2 or 3, characterized in that the reversing gear has a rotation shaft which is rotatably connected to the swinging member.

6. The door lock with a reversing device according to claim 2, wherein the speed reducing gear group has a gear housing, a first input gear, a second input gear, and an output gear, the first input gear, the second input gear, and the output gear are accommodated in the gear housing, the first input gear and the second input gear are coaxial gears, the first input gear is meshed with the worm, the second input gear is meshed with the output gear, an output shaft extending out of the gear housing is provided on the output gear, and the driving gear is connected to the output shaft to rotate synchronously with the output gear.

7. The door lock with reversing device of claim 1, wherein the set of drive teeth has a main gear for meshing with the set of reversing teeth moved into position, a pinion gear coaxial with the main gear and meshing with the rack, and a drive rack for driving the deadbolt assembly;

and when the main gear is meshed with the reversing gear group, the auxiliary gear is driven to drive the rack, so that the lock tongue is driven to move.

8. The door lock with a reversing device according to claim 7, wherein the latch bolt assembly has a slide slidably coupled to the housing and a latch bolt coupled to the slide, and the rack has a push rod for pushing the slide, the latch bolt moving out of or into the housing when the push rod pushes the slide.

9. The door lock with a reversing device according to claim 8, wherein the lock tongue assembly is provided with a latch tongue assembly and a latch tongue assembly, the slide has a latch tongue slide and a latch tongue slide, the lock tongue is provided with a latch tongue and a latch tongue, the latch tongue is connected to the latch tongue slide and forms the latch tongue assembly with the latch tongue slide, the latch tongue slide and the latch tongue slide are arranged at intervals up and down, the push rod is provided with a latch tongue push rod and a latch tongue push rod, the latch tongue push rod is used for pushing the latch tongue slide, the latch tongue moves to extend out of or retract into the shell when the latch tongue push rod pushes the latch tongue slide, and the latch tongue push rod moves to extend out of or retract into the shell when the latch tongue slide pushes the latch tongue slide.

10. The door lock with reversing device according to claim 1, wherein an unlocking block is rotatably connected to the housing, and the unlocking block can drive the driving tooth set to drive the lock tongue assembly to retract the lock tongue into the housing when the reversing tooth set is separated from the driving tooth set.