American-standard intelligent door lock

By introducing a drive module into smart door locks, the problems of time-consuming and labor-intensive installation and maintenance in existing technologies are solved, enabling a more convenient installation process and improving the user experience.

CN224260077UActive Publication Date: 2026-05-19SHENZHEN QI RUI IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN QI RUI IND CO LTD
Filing Date
2025-05-21
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing smart door locks are time-consuming and labor-intensive to install and repair, requiring the installation of motors and multiple transmission gears one by one.

Method used

The drive module, which includes a drive motor, gearbox, and transmission gear set, is pre-assembled. On-site installation of the drive module is simply a matter of fixing the gearbox to the front or rear main body, simplifying the installation process.

Benefits of technology

It improves installation efficiency, saves workers' time, and enhances the user's installation experience.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224260077U_ABST
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Abstract

The utility model provides an American-standard intelligent door lock. The American-standard intelligent door lock comprises a front main body, a rear main body, an unlocking shaft and a driving module, the unlocking shaft extends in the front-back direction, the driving module is installed on the front body or the rear body and used for driving the unlocking shaft to rotate so as to complete unlocking, and the driving module comprises a driving motor, a gear box fixed to the driving motor and a transmission gear set arranged in the gear box; an output shaft of the driving motor is in linkage with the transmission gear set and drives the unlocking shaft to rotate through the transmission gear set. According to the scheme, the driving modules can be assembled and manufactured in batches in advance, when the intelligent door lock is installed on site, the transmission gear set and the driving motor can be installed on the front body or the rear body together only by fixing the gear box to the front body or the rear body, and therefore the whole driving modules can be installed together; the situation that a motor and multiple gears need to be installed one by one when the intelligent door lock is installed is avoided, so that installation is more convenient, the installation time of workers is saved, and the installation experience of users is improved.
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Description

Technical Field

[0001] This application relates to the technical field of smart locks, and more particularly to an American standard smart door lock. Background Technology

[0002] With the development of the times, door locks are also constantly being updated and replaced, and smart door locks have gradually been applied to people's lives.

[0003] Some current smart door locks consist of a front body located on the front side of the door and a rear body located on the back side of the door. The front and rear bodies are fixed by screws and threaded connections of connecting posts. The following is an example of a front body with a connecting cylinder and screws that pass through the rear body and extend into the connecting cylinder. The front body has a connecting cylinder on its back. By passing screws through the front plate of the rear body and connecting them to the connecting cylinder with threads, the front and rear bodies can be fixed. Therefore, in the actual installation of smart door locks, the front plate of the rear body is usually fixed to the front body before the installation of other components inside the rear body and the outer shell of the rear body is carried out. The motor and multiple transmission gears on the rear body used to drive the unlocking usually need to be installed one by one, which makes the installation and maintenance time-consuming and labor-intensive.

[0004] Therefore, it is necessary to provide an American Standard smart lock that is easier to install. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an American Standard smart door lock that is more convenient to install.

[0006] According to the embodiments of this utility model, the first embodiment is provided as follows: an American Standard smart door lock, the American Standard smart door lock comprising: a front body, a rear body, an unlocking shaft, and a drive module; the unlocking shaft extends in a front-rear direction, the drive module is mounted on the front body or the rear body, and is used to drive the unlocking shaft to rotate to complete unlocking, the drive module comprising: a drive motor, a gearbox fixed to the drive motor, and a transmission gear set disposed in the gearbox; the output shaft of the drive motor is linked with the transmission gear set, and drives the unlocking shaft to rotate through the transmission gear set.

[0007] In a preferred embodiment, the front body is provided with a lock cylinder, which is fixed to one axial end of the unlocking shaft. The rear body is provided with a knob, which includes a knob head located outside the rear body and a sleeve extending into the rear body. The sleeve is fitted onto the other axial end of the unlocking shaft, and rotating the knob drives the unlocking shaft to rotate.

[0008] In a preferred embodiment, the drive module is located on the rear body, the gearbox has a clearance hole for the sleeve to pass through, the transmission gear set includes a connecting gear, the sleeve passes through the connecting gear, and the sleeve and the connecting gear can rotate synchronously.

[0009] In a preferred embodiment, the axial direction of the drive motor is perpendicular to the axial direction of the connecting gear, and the transmission gear set further includes: a first bevel gear and a second bevel gear, wherein the first bevel gear is disposed on the output shaft of the drive motor, the axial direction of the second bevel gear is parallel to the axial direction of the connecting gear, and the second bevel gear meshes with the first bevel gear.

[0010] In a preferred embodiment, the rear body is provided with a plurality of positioning grooves, which are axially distributed around the unlocking shaft. The knob head is provided with a positioning element on the side facing the front body. The positioning element includes an elastic element and a positioning bead. The elastic element drives the positioning bead to abut against the positioning groove.

[0011] In a preferred embodiment, the front body is provided with a camera, a first speaker, a microphone, a doorbell, and a first circuit board, and the drive motor, the camera, the first speaker, the microphone, and the doorbell are all electrically connected to the first circuit board.

[0012] In a preferred embodiment, the front body is further provided with a password button on the side opposite to the rear body, and the password button is electrically connected to the first circuit board.

[0013] In a preferred embodiment, the rear body is further provided with a second circuit board and a second horn, and the drive motor and the second horn are both electrically connected to the second circuit board.

[0014] In a preferred embodiment, the rear main body is provided with a second circuit board and an unlock button. The drive motor and the unlock button are both electrically connected to the second circuit board. The unlock button and the gearbox are both mounted on the side of the second circuit board opposite to the front main body.

[0015] In a preferred embodiment, the rear body includes a main shell and a sliding cover, with a battery cavity between the main shell and the sliding cover. The American Standard smart door lock also includes a battery box for holding dry batteries. The battery box and the battery cavity are detachably connected. When the battery box is removed from the battery cavity, the battery cavity can be used to hold lithium batteries.

[0016] This utility model has the following beneficial effects:

[0017] The drive module can be pre-assembled and manufactured in batches. When installing the smart door lock on site, the gearbox only needs to be fixed to the front or rear main body, and the transmission gear set and drive motor can be installed together to the front or rear main body. This allows the entire drive module to be installed at the same time, avoiding the need to install the motor and multiple gears one by one when installing the smart door lock. This makes the installation more convenient, saves the installation time of workers, and improves the user's installation experience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the connection between the front and rear main bodies according to an embodiment of the present invention;

[0019] Figure 2 This is a perspective view of an embodiment of the American Standard smart door lock described in this utility model;

[0020] Figure 3 This is a perspective view of the American Standard smart door lock according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the internal structure of the rear main body according to an embodiment of the present utility model;

[0022] Figure 5 This is a cross-sectional view of an American Standard smart door lock according to an embodiment of the present invention;

[0023] Figure 6 for Figure 5 Enlarged view of point a in the middle;

[0024] Figure 7 This is a schematic diagram of the internal structure of the front body according to an embodiment of the present invention;

[0025] Figure 8 This is an exploded structural diagram of an embodiment of the American Standard smart door lock described in this utility model.

[0026] Reference numerals: 10. Front body; 101. Connecting post; 11. Lock cylinder; 12. Camera; 13. First speaker; 14. Microphone; 15. Doorbell; 16. First circuit board; 17. Password keypad; 20. Rear body; 201. Front panel; 202. Screw; 21. Positioning groove; 22. Knob; 221. Knob head; 222. Sleeve; 23. Positioning component; 231. Elastic component; 232. Positioning bead; 24. Second circuit board; 25. Second speaker; 26. Unlock button; 27. Main shell; 28. Sliding cover; 29. ​​Battery cavity; 291. Battery box; 30. Unlocking shaft; 40. Drive module; 41. Drive motor; 42. Gearbox; 421. Clearance hole; 431. Connecting gear; Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0031] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0032] For reference Figure 1Currently, some smart locks include a front body 10 and a rear body 20. The back of the front body 10 is equipped with a connecting cylinder. By passing a screw 202 through the front plate 201 of the rear body 20 and connecting it with the connecting cylinder, the front body 10 and the rear body 20 can be fixed. Therefore, in the actual installation of smart door locks, the front plate 201 of the rear body 20 is usually fixed to the front body 10 before the installation of other components inside the rear body 20 and the outer shell of the rear body 20 is carried out. The motor and multiple transmission gears on the rear body 20 used to drive unlocking usually need to be installed one by one, which makes the installation and maintenance time-consuming and labor-intensive.

[0033] For reference Figures 2-8 To make installation more convenient, one embodiment of this utility model provides an American Standard smart door lock, which includes: a front body 10, a rear body 20, an unlocking shaft 30, and a drive module 40.

[0034] The unlocking shaft 30 extends in a forward and backward direction. The drive module 40 can be installed on the front body 10 or the rear body 20. The drive module 40 is used to drive the unlocking shaft 30 to rotate to complete the unlocking. The drive module 40 includes a drive motor 41, a gearbox 42, and a transmission gear set. The gearbox 42 is fixed to the drive motor 41, and the transmission gear set is located in the gearbox 42. The output shaft of the drive motor 41 is linked to the transmission gear set and drives the unlocking shaft 30 to rotate through the transmission gear set.

[0035] In this embodiment, the drive module 40 can be pre-assembled and manufactured in batches. When installing the smart door lock on site, the gearbox 42 only needs to be fixed to the front body 10 or the rear body 20, and the transmission gear set and drive motor 41 can be installed together to the front body 10 or the rear body 20, so as to realize the installation of the entire drive module 40 together. This avoids the need to install the motor and multiple gears one by one when installing the smart door lock, making the installation more convenient, saving the installation time of workers, and improving the user's installation experience.

[0036] In a preferred embodiment, reference may be made to Figure 4 The motor can be located outside the gearbox 42, with the output shaft of the drive motor 41 extending into the gearbox 42 and linked with the transmission gear set. Of course, in other embodiments, the drive motor 41 can also be located inside the gearbox 42.

[0037] In a preferred embodiment, the front body 10 is provided with a lock cylinder 11, which is fixed to one axial end of the unlocking shaft 30. The lock cylinder 11 is used to insert a key to complete unlocking. The rear body 20 is provided with a knob 22, which includes a knob head 221 and a sleeve 222. The knob head 221 is located outside the rear body 20, and the sleeve 222 extends into the rear body 20 and is sleeved on the other axial end of the unlocking shaft 30. The user can rotate the knob 22 to drive the unlocking shaft 30 to rotate. Specifically, when the user rotates the knob head 221, it can drive the sleeve 222 to rotate, and the sleeve 222 can drive the unlocking shaft 30 to rotate synchronously. The cross-section of the unlocking shaft 30 can be set to a non-circular structure so as to achieve synchronous rotation with the sleeve 222. The unlocking shaft 30 is preferably a square shaft.

[0038] In a preferred embodiment, reference may be made to Figure 4 The drive module 40 is located on the rear main body 20. The gearbox 42 has a clearance hole 421 for the sleeve 222 to pass through. The transmission gear set includes a connecting gear 431. The sleeve 222 passes through the connecting gear 431, and the sleeve 222 and the connecting gear 431 can rotate synchronously. The cross-section of the sleeve 222 can also be set to a non-circular structure, and the hole in the connecting gear 431 for the sleeve 222 to pass through is also a non-circular structure, so as to achieve synchronous rotation with the connecting gear 431.

[0039] In a preferred embodiment, to make the structure of the drive module 40 and the rear main body 20 more compact, the axial direction of the output shaft of the drive motor 41 is perpendicular to the axial direction of the connecting gear 431. In this embodiment, the transmission gear set also includes a first bevel gear and a second bevel gear (neither shown in the figure), wherein the first bevel gear is disposed on the output shaft of the drive motor 41, the axial direction of the second bevel gear is parallel to the axial direction of the connecting gear 431, and the second bevel gear meshes with the first bevel gear.

[0040] In a preferred embodiment, reference may be made to Figure 8 The rear body 20 has a circular groove on the side opposite to the front body 10, allowing the knob head 221 to rotate within it. Multiple positioning grooves 21 are provided within the circular groove, and these positioning grooves 21 are axially distributed around the unlocking shaft 30. (This can be reassembled.) Figure 5 and Figure 6 The knob head 221 has a positioning element 23 on the side facing the front body 10. The positioning element 23 includes an elastic element 231 and a positioning bead 232. The elastic element 231 is preferably a spring, and the elastic element 231 drives the positioning bead 232 to abut against the positioning groove 21. In this embodiment, the number of positioning grooves 21 is preferably four, and the positioning elements 23 are preferably two sets. The knob head 22 can complete one positioning every 90° rotation.

[0041] In a preferred embodiment, reference may be made to Figure 2 and Figure 7 The front body 10 is equipped with a camera 12, a first speaker 13, a microphone 14, a doorbell 15, and a first circuit board 16. The drive motor 41, the camera 12, the first speaker 13, the microphone 14, and the doorbell 15 are all electrically connected to the first circuit board 16.

[0042] In this embodiment, a visitor can press the doorbell 15 and communicate visually with the user via the camera 12, the first speaker 13, and the microphone 14. After the user learns the visitor's information, they can control the drive motor 41 to unlock the door via a mobile app. Alternatively, visitor information can be determined through facial recognition to unlock the door based on a registered identity.

[0043] Furthermore, the rear main body 20 is also provided with a second circuit board 24 and a second speaker 25, and the drive motor 41 and the second speaker 25 are both electrically connected to the second circuit board 24.

[0044] In a preferred embodiment, the front body 10 is further provided with a password button 17 on the side opposite to the rear body 20, and the password button 17 is electrically connected to the first circuit board 16. In this embodiment, the user can enter a password by pressing the password button 17 to complete the unlocking.

[0045] In a preferred embodiment, the rear body 20 is provided with a second circuit board 24 and an unlock button 26. Both the drive motor 41 and the unlock button 26 are electrically connected to the second circuit board 24. The unlock button 26 and the gearbox 42 are both mounted on the side of the second circuit board 24 facing away from the front body 10. In this embodiment, the user can control the drive motor 41 to unlock the device by pressing the unlock button 26.

[0046] In a preferred embodiment, reference may be made to Figure 4 and Figure 8 The rear body 20 includes a main shell 27 and a sliding cover 28, with a battery cavity 29 located between the main shell 27 and the sliding cover 28. The American Standard smart lock also includes a battery box 291 for holding dry cell batteries. The battery box 291 is detachably connected to the battery cavity 29. When the battery box 291 is removed from the battery cavity 29, the battery cavity 29 can be used to hold a lithium battery. In this embodiment, the user can flexibly choose to place multiple dry cell batteries or a single lithium battery inside the rear body 20 according to their actual needs.

[0047] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A US standard smart door lock, characterized in that, The American Standard smart door lock includes: a front body, a rear body, an unlocking shaft, and a drive module; the unlocking shaft extends in the front-rear direction, and the drive module is installed on the front body or the rear body to drive the unlocking shaft to rotate to complete unlocking. The drive module includes: a drive motor, a gearbox fixed to the drive motor, and a transmission gear set disposed in the gearbox; the output shaft of the drive motor is linked to the transmission gear set and drives the unlocking shaft to rotate through the transmission gear set.

2. The American Standard smart door lock according to claim 1, characterized in that, The front body is provided with a lock cylinder, which is fixed to one axial end of the unlocking shaft. The rear body is provided with a knob, which includes a knob head located outside the rear body and a sleeve extending into the rear body. The sleeve is fitted onto the other axial end of the unlocking shaft, and rotating the knob drives the unlocking shaft to rotate.

3. The American Standard smart door lock according to claim 2, characterized in that, The drive module is located on the rear body, the gearbox has a clearance hole for the sleeve to pass through, the transmission gear set includes a connecting gear, the sleeve passes through the connecting gear, and the sleeve and the connecting gear can rotate synchronously.

4. The American Standard smart door lock according to claim 3, characterized in that, The axial direction of the drive motor is perpendicular to the axial direction of the connecting gear. The transmission gear set further includes a first bevel gear and a second bevel gear. The first bevel gear is disposed on the output shaft of the drive motor, the axial direction of the second bevel gear is parallel to the axial direction of the connecting gear, and the second bevel gear meshes with the first bevel gear.

5. The American Standard smart door lock according to claim 2, characterized in that, The rear body is provided with multiple positioning grooves, which are distributed axially around the unlocking shaft. The knob head is provided with a positioning element on the side facing the front body. The positioning element includes an elastic element and a positioning bead. The elastic element drives the positioning bead to abut against the positioning groove.

6. The American Standard smart door lock according to claim 1, characterized in that, The front body is equipped with a camera, a first speaker, a microphone, a doorbell, and a first circuit board. The drive motor, the camera, the first speaker, the microphone, and the doorbell are all electrically connected to the first circuit board.

7. The American Standard smart door lock according to claim 6, characterized in that, The front body is also provided with a password button on the side opposite to the rear body, and the password button is electrically connected to the first circuit board.

8. The American Standard smart door lock according to claim 6, characterized in that, The rear main body is also provided with a second circuit board and a second speaker, and the drive motor and the second speaker are both electrically connected to the second circuit board.

9. The American Standard smart door lock according to claim 1, characterized in that, The rear main body is provided with a second circuit board and an unlock button. The drive motor and the unlock button are both electrically connected to the second circuit board. The unlock button and the gearbox are both installed on the side of the second circuit board opposite to the front main body.

10. The American Standard smart door lock according to claim 1, characterized in that, The rear body includes a main shell and a sliding cover, with a battery cavity between the main shell and the sliding cover. The American Standard smart door lock also includes a battery box for holding dry batteries. The battery box and the battery cavity are detachably connected. When the battery box is removed from the battery cavity, the battery cavity can be used to hold lithium batteries.