Door lock gear clutch speed reducer, door lock and door

Abstract

The utility model discloses a door lock gear clutch speed reducer, a door lock and a door, the door lock gear clutch speed reducer is applied to the door lock, the door lock comprises a lock tongue, the door lock gear clutch speed reducer comprises a shell, a gear shaft, a gear shaft and a gear shaft, the motor is arranged in the shell; the gear assembly is arranged in the shell, and the gear assembly is connected with the motor; the switch lock rotating shaft is arranged in the shell, the switch lock rotating shaft is connected with the gear assembly, and the switch lock rotating shaft is used for being connected with a spring bolt; and the control circuit is arranged in the shell, the control circuit is electrically connected with the motor, and the control circuit is used for outputting a control signal to control the motor to drive the gear assembly to rotate when receiving an unlocking trigger signal so as to drive the switch lock rotating shaft to rotate the spring bolt. The utility model aims to improve the consistency of the door lock gear clutch speed reducer and the spring bolt when the door lock is opened and closed.

Description

Technical Field

[0001] The utility model relates to the field of door locks, in particular to a door lock gear clutch speed reducing device, a door lock and a door. Background Art

[0002] In order to facilitate the opening and closing of door locks, a variety of electric door locks have been proposed. However, the clutch solution used in current door locks places the drive mechanism of the lock tongue, the lock tongue and other components in the same door lock space. This results in an excessive number of components, resulting in a low consistency between the drive mechanism of the lock tongue and the lock tongue when the door lock is opened and closed. Summary of the Invention

[0003] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a door lock gear clutch reduction device, a door lock and a door, so as to improve the consistency between the door lock gear clutch reduction device and the lock tongue when the door lock is opened and closed.

[0004] The technical solution of the utility model is as follows:

[0005] A door lock gear clutch speed reducer is applied to a door lock, wherein the door lock includes a lock tongue. The door lock gear clutch speed reducer includes:

[0006] The housing is formed with a receiving cavity;

[0007] a motor, disposed in the housing;

[0008] a gear assembly, disposed in the housing, the gear assembly being connected to the motor;

[0009] A switch lock rotating shaft is disposed in the housing, the switch lock rotating shaft is connected to the gear assembly, and the switch lock rotating shaft is used to connect to the lock tongue;

[0010] A control circuit is disposed in the housing and is electrically connected to the motor. When receiving an unlocking trigger signal, the control circuit is used to output a control signal to control the motor to drive the gear assembly to rotate, thereby driving the switch lock shaft to rotate the lock tongue.

[0011] Optionally, the housing includes:

[0012] An upper cover, wherein the upper cover is provided with a threaded through hole;

[0013] A lower cover, wherein the lower cover and the upper cover together form an accommodating cavity, and the lower cover is provided with a threaded groove;

[0014] A fixing screw is used to pass through the threaded through hole of the upper cover and insert into the threaded groove of the lower cover to fix the upper cover and the lower cover.

[0015] Optionally, the gear assembly comprises:

[0016] A worm connected to the motor, wherein the motor is used to drive the worm to rotate;

[0017] a worm wheel meshing with the worm, wherein the worm is used to drive the worm wheel to rotate;

[0018] a driving wheel meshing with the worm gear, wherein the worm gear is used to drive the driving wheel to rotate;

[0019] a balance wheel assembly, meshing with the driving wheel, wherein the driving wheel is used to drive the balance wheel assembly to rotate;

[0020] A reduction gear set, wherein when the balance wheel set rotates to engage with the reduction gear set, the reduction gear set is driven to rotate;

[0021] The switch lock detection gear is engaged with the reduction gear set, and the switch lock shaft is fixedly arranged in the middle of the switch lock detection gear. The reduction gear set is used to drive the switch lock detection gear to rotate, so as to drive the switch lock shaft to rotate the lock tongue.

[0022] Optionally, the balance wheel assembly includes:

[0023] a first balance wheel engaged with the driving wheel, and configured to drive the reduction gear set to rotate when the first balance wheel is driven by the driving wheel to rotate until it engages with the reduction gear set;

[0024] The second balance wheel is engaged with the driving wheel, and is used to drive the reduction gear set to rotate when the second balance wheel is driven by the driving wheel to rotate until it is engaged with the reduction gear set.

[0025] Optionally, the reduction gear set includes:

[0026] a first reduction gear, wherein when the balance wheel assembly rotates to engage with the first reduction gear, the first reduction gear is driven to rotate;

[0027] The second reduction gear is connected to the first reduction gear, and the second reduction gear is also engaged with the switch lock detection gear. When the first reduction gear rotates, the second reduction gear is driven to rotate, thereby driving the switch lock detection gear to rotate.

[0028] Optionally, the door lock gear clutch reduction device further includes:

[0029] A first magnet is provided on the switch lock detection gear;

[0030] a second magnet, disposed on the switch lock detection gear opposite to the first magnet;

[0031] A Hall sensor is disposed in the housing, wherein the output end of the Hall sensor is connected to the Hall input end of the control circuit, and the Hall sensor is used to sense the positions of the first magnet and the second magnet and output corresponding magnetic induction signals to the control circuit.

[0032] Optionally, the gear assembly further includes a light reflecting gear, the light reflecting gear is engaged with the worm gear, and the door lock gear clutch reduction device further includes:

[0033] a reflective wheel, disposed on the light reflecting gear, and configured to reflect natural light;

[0034] a grating, arranged on the light reflecting gear corresponding to the reflecting wheel;

[0035] A photoelectric sensor is provided corresponding to the grating, the output end of the photoelectric sensor is connected to the photoelectric input end of the control circuit, and the photoelectric sensor is used to detect the natural light reflected by the reflection wheel through the grating and output a corresponding light sensing signal to the control circuit.

[0036] Optionally, the door lock gear clutch reduction device further includes:

[0037] A printed circuit board is accommodated in the housing, and the control circuit is arranged on the printed circuit board.

[0038] The present invention also provides a door lock, comprising a door lock body, a lock tongue and the door lock gear clutch reduction device as described above, wherein the lock tongue is arranged in the door lock body, and the lock tongue is connected to the door lock gear clutch reduction device.

[0039] The present invention further provides a door, comprising a door body and the door lock as described above, wherein the door lock is arranged on the door body.

[0040] The present invention is a technical solution for a door lock gear clutch reduction device formed by a housing, a motor, a gear assembly, a switch lock shaft and a control circuit, wherein the housing is formed with a housing cavity; the motor is arranged in the housing; the gear assembly is arranged in the housing, the gear assembly is connected to the motor; the switch lock shaft is arranged in the housing, the switch lock shaft is connected to the gear assembly, and the switch lock shaft is used to connect to the lock tongue; the control circuit is arranged in the housing, the control circuit is electrically connected to the motor, and the control circuit is used to output a control signal to control the motor to drive the gear assembly to rotate when receiving an unlock trigger signal, so as to drive the switch lock shaft to rotate the lock tongue. The present invention is a technical solution for a door lock gear clutch reduction device formed by a housing, a motor, a gear assembly, a switch lock shaft and a control circuit, wherein the housing is formed with a housing, and the switch lock shaft is connected to the lock tongue through the switch lock shaft. The number of components in the housing is small, and the consistency during operation is high; and the components in the door lock gear clutch reduction device can be debugged separately without affecting the lock tongue and other components in the door lock, thereby improving the consistency of the door lock gear clutch reduction device and the lock tongue when opening and closing the door lock. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary personnel in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0042] Figure 1 It is a structural schematic diagram of an embodiment of a door lock gear clutch speed reducing device of the present invention.

[0043] Figure 2 It is a structural schematic diagram of another embodiment of the door lock gear clutch speed reducing device of the present invention.

[0044] Figure 3 It is a structural schematic diagram of another embodiment of the door lock gear clutch speed reducing device of the present invention.

[0045] Explanation of the accompanying drawings: 11. Upper cover; 12. Lower cover; 13. Fixing screw; 20. Motor; 30. Gear assembly; 31. Worm; 32. Worm wheel; 33. Driving wheel; 36. Switch lock detection gear; 37. Light reflecting gear; 341. First balance wheel; 342. Second balance wheel; 351. First reduction gear; 352. Second reduction gear; 40. Switch lock shaft; 51. First magnet; 52. Second magnet; 61. Reflection wheel; 62. Grating; 70. Printed circuit board. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solution and effect of the present invention more clear and explicit, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0047] In the embodiments and patent claims, unless otherwise specified herein, the words "a," "an," "the," and "the" may include plural forms. If the embodiments of the present invention include descriptions of "first," "second," etc., such descriptions are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0048] It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when an element is said to be "connected" or "coupled" to another element, it can be directly connected or coupled to the other element, or there can be intermediate elements. In addition, "connected" or "coupled" as used herein can include wireless connections or wireless couplings. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0049] Those skilled in the art will understand that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as those generally understood by those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in general dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0050] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0051] In order to facilitate the opening and closing of door locks, a variety of electric door locks have been proposed. However, the clutch solution used in current door locks places the drive mechanism of the lock tongue, the lock tongue and other components in the same door lock space. This results in an excessive number of components, resulting in a low consistency between the drive mechanism of the lock tongue and the lock tongue when the door lock is opened and closed.

[0052] To address the aforementioned issues, the present invention proposes a door lock gear clutch reduction device, which is applied to a door lock comprising a lock tongue. The lock tongue is the primary component of the door lock. When locked, it inserts into a keyhole in the door frame to hold the door closed; when unlocked, the lock tongue retracts, allowing the door to open.

[0053] Reference Figure 1 In one embodiment, the door lock gear clutch reduction device includes:

[0054] The housing is formed with a receiving cavity;

[0055] The motor 20 is disposed in the housing;

[0056] A gear assembly 30 is disposed in the housing and connected to the motor 20;

[0057] A switch lock shaft 40 is disposed in the housing, the switch lock shaft 40 is connected to the gear assembly 30, and the switch lock shaft 40 is used to connect to the lock tongue;

[0058] A control circuit is disposed in the housing and is electrically connected to the motor 20. When receiving an unlocking trigger signal, the control circuit outputs a control signal to control the motor 20 to drive the gear assembly 30 to rotate, thereby driving the switch lock shaft 40 to rotate the lock tongue.

[0059] In this embodiment, the shell can be used to fix the positional relationship of the internal motor 20, gear assembly 30, switch lock shaft 40 and control circuit, ensuring the safety and stability inside the accommodating cavity formed by the shell of the door lock gear clutch reducer. When the door lock gear clutch reducer is working, the positional relationship of the motor 20, gear assembly 30, switch lock shaft 40 and control circuit will not change, and external gas or objects will not fall on the circuit board, affecting the operation of the internal motor 20 and control circuit, as well as affecting the rotation accuracy of the gear assembly 30 and the switch lock shaft 40.

[0060] The motor 20 can be a DC motor 20, a stepper motor 20, or a servo motor 20, thereby driving the gear assembly 30 to rotate. The gear assembly 30 can be composed of a variety of gears, such as spur gears, helical gears, bevel gears, and worm gears 32. The meshing of multiple gears in the gear assembly 30 can achieve a deceleration function while realizing mechanical transmission. When the gear assembly 30 rotates, it can drive the switch lock shaft 40 to rotate, thereby driving the lock tongue to rotate, extend, or retract, completing the locking or unlocking of the door lock. The control circuit can be composed of devices such as a controller or a control chip. The controller can be a digital signal processor (DSP), a programmable logic device (PLD), a field programmable gate array (FPGA), a microprocessor, an MCU, or other electronic components. Taking a smart password door lock as an example, after the user enters the correct unlock password, the control circuit receives the unlock trigger signal from the unlock module. At this point, the control circuit outputs a high-level electrical signal, i.e., a control signal, to the motor 20, controlling the motor 20 to operate, thereby driving the gear assembly 30 to rotate, which in turn drives the switch lock shaft 40 to rotate and retract the lock tongue, thereby unlocking the door. From outside, the user can unlock the door using the password, and from inside, they can lock the door using components such as a knob or handle.

[0061] The technical solution of the present utility model constitutes a door lock gear clutch reduction device through a shell, a motor 20, a gear assembly 30, a switch lock shaft 40 and a control circuit, wherein the shell is formed with a accommodating cavity; the motor 20 is arranged in the shell; the gear assembly 30 is arranged in the shell, and the gear assembly 30 is connected to the motor 20; the switch lock shaft 40 is arranged in the shell, and the switch lock shaft 40 is connected to the gear assembly 30, and the switch lock shaft 40 is used to connect the lock tongue; the control circuit is arranged in the shell, and the control circuit is electrically connected to the motor 20. The control circuit is used to output a control signal to control the motor 20 to drive the gear assembly 30 to rotate when receiving an unlocking trigger signal, so as to drive the switch lock shaft 40 to rotate the lock tongue. This solution houses the motor 20, gear assembly 30, switch lock shaft 40 and control circuit in a housing, which is then connected to the lock tongue through the switch lock shaft 40. This reduces the number of components in the housing and ensures high consistency during operation. Furthermore, the components in the door lock gear clutch reduction device can be debugged separately without affecting the lock tongue and other components in the door lock. This improves the consistency between the door lock gear clutch reduction device and the lock tongue when opening and closing the door lock.

[0062] Reference Figure 1 In one embodiment, the housing comprises:

[0063] An upper cover 11, wherein the upper cover 11 is provided with a threaded through hole;

[0064] A lower cover 12, wherein the lower cover 12 and the upper cover 11 together form an accommodating cavity, and a threaded groove is provided on the lower cover 12;

[0065] The fixing screw 13 is used to pass through the threaded through hole of the upper cover 11 and be inserted into the threaded groove of the lower cover 12 to fix the upper cover 11 and the lower cover 12 together.

[0066] In this embodiment, the upper cover 11 and the lower cover 12 can be combined to form a accommodating chamber, which is then fixed by the fixing screws 13. When it is necessary to maintain and debug the components inside the door lock gear clutch speed reducer housing, the fixing screws 13 can be removed and the upper cover 11 can be opened; when the door lock gear clutch speed reducer is working normally, the upper cover 11 and the lower cover 12 are fixedly connected by the fixing screws 13 to ensure the stability of the accommodating chamber formed by the door lock gear clutch speed reducer housing.

[0067] Reference Figures 1 to 2 In one embodiment, the gear assembly 30 includes:

[0068] The worm 31 is connected to the motor 20, and the motor 20 is used to drive the worm 31 to rotate;

[0069] A worm wheel 32 meshes with the worm 31 , and the worm 31 is used to drive the worm wheel 32 to rotate;

[0070] The driving wheel 33 is engaged with the worm gear 32, and the worm gear 32 is used to drive the driving wheel 33 to rotate;

[0071] a balance wheel assembly, meshing with the driving wheel 33, wherein the driving wheel 33 is used to drive the balance wheel assembly to rotate;

[0072] A reduction gear set, wherein when the balance wheel set rotates to engage with the reduction gear set, the reduction gear set is driven to rotate;

[0073] The switch lock detection gear 36 is engaged with the reduction gear set, and the switch lock shaft 40 is fixedly set in the middle of the switch lock detection gear 36. The reduction gear set is used to drive the switch lock detection gear 36 to rotate, thereby driving the switch lock shaft 40 to rotate the lock tongue.

[0074] In this embodiment, multiple gears and devices can transmit power and motion through tooth meshing. During the transmission process, the worm 31 can transfer power to the worm wheel 32 through rotation, achieving the transmission of rotational motion. The worm 31 can achieve a large reduction ratio, providing a large output torque in a relatively small volume. The worm wheel 32, through meshing with the worm 31, can convert its rotational motion into rotational motion in other directions. When the worm wheel 32 rotates, it can drive the drive wheel 33 to rotate. The drive wheel 33 is used to drive the balance wheel assembly to rotate, causing the balance wheel assembly to mesh with the reduction gear assembly, or to disengage the balance wheel assembly from the reduction gear assembly. It can be understood that when the balance wheel assembly is engaged with the reduction gear assembly, it can drive the reduction gear assembly to rotate, thereby driving the switch lock shaft 40 on the switch lock detection gear 36 to rotate, thereby rotating the lock tongue, completing the unlocking of the door lock. Furthermore, the user can unlock the door from outside and, after entering the door, turn the knob or handle to lock the door.

[0075] Reference Figures 1 to 2 In one embodiment, the balance wheel assembly comprises:

[0076] a first balance wheel 341 meshing with the driving wheel 33 , and configured to drive the reduction gear set to rotate when the first balance wheel 341 is driven by the driving wheel 33 to rotate until it meshes with the reduction gear set;

[0077] The second balance wheel 342 is engaged with the driving wheel 33 . When the second balance wheel 342 is driven by the driving wheel 33 to rotate until it engages with the reduction gear set, it drives the reduction gear set to rotate.

[0078] In this embodiment, the balance wheel group is composed of a first balance wheel 341 and a second balance wheel 342. When the first balance wheel 341 or the second balance wheel 342 is engaged with the gears in the reduction gear group, it can drive the reduction gear group to rotate, so that the balance wheel group can be more easily engaged with the gears in the reduction gear group; it can be understood that this can reduce the rotation angle of the driving wheel 33, and so on, and finally reduce the energy consumption of the motor 20.

[0079] In one embodiment, the reduction gear set comprises:

[0080] The first reduction gear 351, when the balance wheel assembly rotates to engage with the first reduction gear 351, drives the first reduction gear 351 to rotate;

[0081] The second reduction gear 352 is connected to the first reduction gear 351 , and the second reduction gear 352 is also engaged with the switch lock detection gear 36 . When the first reduction gear 351 rotates, the second reduction gear 352 is driven to rotate, thereby driving the switch lock detection gear 36 to rotate.

[0082] In this embodiment, the second reduction gear 352 can be provided with fewer teeth than the first reduction gear 351, thereby achieving a reduction effect. The pendulum wheel assembly drives the first reduction gear 351 to rotate, thereby driving the second reduction gear 352 to rotate. Since the second reduction gear 352 has fewer teeth, the transmission ratio is reduced, thereby achieving reduction in speed. This can prevent the faster rotation speed from causing the door lock gear clutch reduction device and the lock tongue to lose consistency.

[0083] Reference Figures 2 to 3 In one embodiment, the door lock gear clutch reduction device further includes:

[0084] A first magnet 51 is provided on the switch lock detection gear 36;

[0085] A second magnet 52 is provided on the switch lock detection gear 36 opposite to the first magnet 51;

[0086] A Hall sensor is disposed in the housing, and the output end of the Hall sensor is connected to the Hall input end of the control circuit. The Hall sensor is used to sense the positions of the first magnet 51 and the second magnet 52 and output corresponding magnetic induction signals to the control circuit.

[0087] In this embodiment, the first magnet 51 and the second magnet 52 can be arranged relative to each other on the switch lock detection gear 36, and a Hall sensor can be arranged in the housing, for example, on the inner wall of the housing, or on the switch lock detection gear 36, or on other gears of the gear set. The specific location of the Hall sensor can be set according to actual conditions and user needs. It can be understood that by rotating the switch lock shaft 40 on the switch lock detection gear 36, the lock tongue can be rotated to complete the unlocking or locking. Therefore, the rotational position of the switch lock detection gear 36 corresponds to the unlocking or locking state of the door lock; and when the switch lock detection gear 36 is in different rotational positions, the magnetic force of the first magnet 51 and the second magnet 52 detected by the Hall sensor is also different, thereby outputting corresponding magnetic induction signals to the control circuit. The control circuit can then determine the switch state of the door lock based on the voltage of the magnetic induction signal. By setting up a wireless communication chip, the switch information of the door lock can be uploaded to the cloud or server, thereby achieving remote monitoring.

[0088] Further, refer to Figures 2 to 3 In one embodiment, the gear assembly 30 further includes a light reflecting gear 37, the light reflecting gear 37 is engaged with the worm gear 32, and the door lock gear clutch reduction device further includes:

[0089] A reflective wheel 61 is provided on the light reflecting gear 37 and is used to reflect natural light;

[0090] The grating 62 is provided on the light reflecting gear 37 corresponding to the reflecting wheel 61;

[0091] A photoelectric sensor is provided corresponding to the grating 62 , and the output end of the photoelectric sensor is connected to the photoelectric input end of the control circuit. The photoelectric sensor is used to detect the natural light reflected by the reflection wheel 61 through the grating 62 and output a corresponding light sensing signal to the control circuit.

[0092] In this embodiment, the light-reflecting gear 37 can be driven to rotate by the worm gear 32. A reflective wheel 61 is disposed on the light-reflecting gear 37, and a grating 62 can be disposed above the reflective wheel 61. A photoelectric sensor can also be disposed on the grating 62. The operation process is that the rotation of the light-reflecting gear 37 drives the reflective wheel 61. The reflective plate on the reflective wheel 61 rotates, and the reflected light passes through the grating 62 and is detected by the photoelectric sensor. The reflected light intensity detected by the photoelectric sensor varies with the rotation angle of the reflective wheel 61. Consequently, the sensor outputs light sensing signals of varying intensities to the control circuit. The control circuit then determines the rotation angle of the light-reflecting gear 37 based on the light sensing signals. As can be seen from the above embodiment, the light reflecting gear 37 and the switch lock detection gear 36 have a certain transmission ratio. In this way, the rotation angle of the switch lock detection gear 36 can be determined by the rotation angle of the light reflecting gear 37 and the transmission ratio of the light reflecting gear 37 and the switch lock detection gear 36, thereby determining whether the rotation angle of the switch lock detection gear 36 can unlock the door lock. When the rotation angle of the switch lock detection gear 36 can unlock the door lock, the control circuit can control the motor 20 to stop working.

[0093] It should be noted that in this solution, after the balance wheel group and the reduction gear group engage and rotate to complete the unlocking of the door lock, the balance wheel group and the reduction gear group are in the engaged state, and the user cannot manually control the door lock to lock. Therefore, the control circuit can be set to control the motor 20 to reverse after a preset time after unlocking, driving the worm 31 and worm wheel 32 to reverse the preset angle, so that the driving wheel 33 drives the balance wheel group and the reduction gear group to become separated. In addition, the user can manually rotate the knob or handle and other components inside the door to lock the door lock; the preset time and preset angle can be set according to user needs.

[0094] Reference Figure 1 In one embodiment, the door lock gear clutch reduction device further includes:

[0095] A printed circuit board 70 is housed in the housing, and the control circuit is disposed on the printed circuit board 70. In this embodiment, the control circuit and peripheral circuits such as an auxiliary power supply can be disposed on the printed circuit board 70 to fix the positions of circuit components.

[0096] The present invention further provides a door lock comprising a door lock body, a lock tongue, and the door lock gear clutch reduction device described above, wherein the lock tongue is disposed within the door lock body and is connected to the door lock gear clutch reduction device. It is understood that since the door lock of the present invention utilizes the door lock gear clutch reduction device described above, the embodiments of the door lock of the present invention include all technical solutions of all embodiments of the door lock gear clutch reduction device described above, and the technical effects achieved are identical, and therefore will not be further elaborated herein.

[0097] The present invention further provides a door comprising a door body and the aforementioned door lock, wherein the door lock is disposed on the door body. It is understood that since the aforementioned door lock is used in the door of the present invention, the embodiments of the door of the present invention include all technical solutions of all embodiments of the aforementioned door lock, and the technical effects achieved are identical, and therefore will not be further elaborated here.

[0098] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A door lock gear clutch speed reducer, the door lock includes a lock tongue, characterized in that: The door lock gear clutch speed reduction device comprises: The housing is formed with a receiving cavity; a motor, disposed in the housing; a gear assembly, disposed in the housing, the gear assembly being connected to the motor; A switch lock rotating shaft is disposed in the housing, the switch lock rotating shaft is connected to the gear assembly, and the switch lock rotating shaft is used to connect to the lock tongue; A control circuit is disposed in the housing and is electrically connected to the motor. When receiving an unlocking trigger signal, the control circuit is used to output a control signal to control the motor to drive the gear assembly to rotate, thereby driving the switch lock shaft to rotate the lock tongue.

2. The door lock gear clutch speed reducer according to claim 1, characterized in that: The housing comprises: An upper cover, wherein the upper cover is provided with a threaded through hole; A lower cover, wherein the lower cover and the upper cover together form an accommodating cavity, and the lower cover is provided with a threaded groove; A fixing screw is used to pass through the threaded through hole of the upper cover and insert into the threaded groove of the lower cover to fix the upper cover and the lower cover.

3. The door lock gear clutch speed reducer according to claim 1, characterized in that: The gear assembly comprises: A worm connected to the motor, wherein the motor is used to drive the worm to rotate; a worm wheel meshing with the worm, wherein the worm is used to drive the worm wheel to rotate; a driving wheel meshing with the worm gear, wherein the worm gear is used to drive the driving wheel to rotate; a balance wheel assembly, meshing with the driving wheel, wherein the driving wheel is used to drive the balance wheel assembly to rotate; A reduction gear set, wherein when the balance wheel set rotates to engage with the reduction gear set, the reduction gear set is driven to rotate; The switch lock detection gear is engaged with the reduction gear set, and the switch lock shaft is fixedly arranged in the middle of the switch lock detection gear. The reduction gear set is used to drive the switch lock detection gear to rotate, so as to drive the switch lock shaft to rotate the lock tongue.

4. The door lock gear clutch speed reducer according to claim 3, characterized in that: The balance wheel assembly comprises: a first balance wheel engaged with the driving wheel, and configured to drive the reduction gear set to rotate when the first balance wheel is driven by the driving wheel to rotate until it engages with the reduction gear set; The second balance wheel is engaged with the driving wheel, and is used to drive the reduction gear set to rotate when the second balance wheel is driven by the driving wheel to rotate until it is engaged with the reduction gear set.

5. The door lock gear clutch speed reducer according to claim 3, characterized in that: The reduction gear set comprises: a first reduction gear, wherein when the balance wheel assembly rotates to engage with the first reduction gear, the first reduction gear is driven to rotate; The second reduction gear is connected to the first reduction gear, and the second reduction gear is also engaged with the switch lock detection gear. When the first reduction gear rotates, the second reduction gear is driven to rotate, thereby driving the switch lock detection gear to rotate.

6. The door lock gear clutch speed reducer according to claim 3, characterized in that: The door lock gear clutch speed reducer also includes: A first magnet is provided on the switch lock detection gear; a second magnet, disposed on the switch lock detection gear opposite to the first magnet; A Hall sensor is disposed in the housing, wherein the output end of the Hall sensor is connected to the Hall input end of the control circuit, and the Hall sensor is used to sense the positions of the first magnet and the second magnet and output corresponding magnetic induction signals to the control circuit.

7. The door lock gear clutch speed reducer according to claim 3, wherein: The gear assembly further includes a light reflecting gear, the light reflecting gear meshing with the worm gear, and the door lock gear clutch reduction device further includes: a reflective wheel, disposed on the light reflecting gear, and configured to reflect natural light; a grating, arranged on the light reflecting gear corresponding to the reflecting wheel; A photoelectric sensor is provided corresponding to the grating, the output end of the photoelectric sensor is connected to the photoelectric input end of the control circuit, and the photoelectric sensor is used to detect the natural light reflected by the reflection wheel through the grating and output a corresponding light sensing signal to the control circuit.

8. The door lock gear clutch speed reducer according to claim 1, wherein: The door lock gear clutch speed reducer also includes: A printed circuit board is accommodated in the housing, and the control circuit is arranged on the printed circuit board.

9. A door lock, characterized in that: It comprises a door lock body, a lock tongue and a door lock gear clutch reduction device as described in any one of claims 1 to 8, wherein the lock tongue is arranged in the door lock body, and the lock tongue is connected to the switch lock shaft in the door lock gear clutch reduction device.

10. A door, characterized in that: It comprises a door body and the door lock as claimed in claim 9, wherein the door lock is arranged on the door body.

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