Intelligent door lock

Abstract

The utility model relates to the technical field of intelligent door locks, and discloses an intelligent door lock which comprises a camera shooting assembly, a rotating support, a first motor and a second motor. The camera shooting assembly is movably connected with the rotating support. The first motor is connected with the camera shooting assembly, and the first motor is used for driving the camera shooting assembly to rotate around a first direction; the second motor is connected with the rotating bracket, and the second motor is used for driving the rotating bracket to drive the camera component to rotate around a second direction; wherein the first direction and the second direction are one of the horizontal direction and the vertical direction and the other one of the horizontal direction and the vertical direction respectively. According to the intelligent door lock provided by the invention, the image acquisition angle of the camera shooting assembly can be adjusted, so that the image acquisition range is expanded.

Description

Technical Field

[0001] The present application relates to the technical field of smart door locks, and in particular to a smart door lock. Background Art

[0002] With the development of Internet of Things technology, smart door locks are widely used due to their convenience, safety, intelligence, etc. At present, some smart door lock products are equipped with cameras to realize face recognition function or smart cat's eye function.

[0003] However, in the related art, the camera angle of the camera in the smart door lock product is usually fixed, which results in a small image acquisition range of the camera. Due to differences in the height and standing position of the user, the camera may have difficulty in capturing the user's facial image, resulting in low efficiency of face recognition or poor monitoring image quality of the smart cat's eye function. Utility Model Content

[0004] In view of this, the present application provides a smart door lock that can adjust the image acquisition angle of the camera assembly to expand the image acquisition range. The present application specifically adopts the following technical solutions:

[0005] In a first aspect, the present application provides a smart door lock, the smart door lock comprising a camera module, the camera module comprising a camera assembly, a rotating bracket, a first motor and a second motor;

[0006] The camera assembly is movably connected to the rotating bracket;

[0007] The first motor is connected to the camera assembly, and the first motor is used to drive the camera assembly to rotate around a first direction;

[0008] The second motor is connected to the rotating bracket, and the second motor is used to drive the rotating bracket to drive the camera assembly to rotate around a second direction, wherein the second direction intersects with the first direction.

[0009] Optionally, the rotating bracket is used to limit the rotation range of the camera assembly around the first direction.

[0010] Optionally, the camera assembly includes a first mounting plate and a second mounting plate, and the rotating bracket includes a first limiting plate and a second limiting plate;

[0011] The first mounting plate and the first limiting plate are stacked along the first direction, the first mounting plate is provided with a first through hole, the housing of the first motor is fixed to the first mounting plate, the first output shaft of the first motor passes through the first through hole and is fixedly connected to the first limiting plate, wherein the opening direction of the first through hole is parallel to the first direction, and the first output shaft can rotate in the first through hole;

[0012] The second mounting plate and the second limiting plate are stacked along the first direction and are rotatably connected, wherein a rotation axis is parallel to the first direction.

[0013] Optionally, the first limit plate and the second limit plate are arranged opposite to each other and spaced apart, the first mounting plate and the second mounting plate are located opposite to each other and spaced apart between the first limit plate and the second limit plate, wherein the housing of the first motor is fixed to the side of the first mounting plate facing the second mounting plate.

[0014] Optionally, the first limiting plate is partially recessed in a direction away from the first mounting plate to form a limiting groove, and a first fixing hole is formed on a bottom wall of the limiting groove;

[0015] The first output shaft is a flat shaft having a first plane and a second plane arranged opposite to each other, one end of the first output shaft passing through the first through hole is located in the limiting groove, wherein the first plane overlaps with the bottom wall;

[0016] The smart door lock also includes a first connecting member, which passes through the second plane and the first plane in sequence and is inserted into the first fixing hole to fixedly connect the first output shaft and the first limiting plate.

[0017] Optionally, the rotating bracket further comprises a first limiting portion, the first limiting portion is convexly arranged on a side of the first limiting plate facing the first mounting plate, and the first mounting plate is used to abut against the first limiting portion to limit the range of rotation of the camera assembly around the first direction; and / or,

[0018] The rotating bracket also includes a second limiting portion, which is protruding from the side of the second limiting plate facing the second mounting plate, and the second mounting plate is used to abut against the second limiting portion to limit the range of rotation of the camera assembly around the first direction.

[0019] Optionally, when the rotating bracket includes the first limiting portion, the first mounting plate has a first protrusion, and the first protrusion is used to abut against a first wall surface of the first limiting portion to limit the first limit position of the camera assembly rotating around the first direction, wherein the first wall surface is a wall surface of the first limiting portion in the second direction and is adjacent to the first limiting plate;

[0020] When the rotating bracket includes the second limiting portion, the second mounting plate has a second protrusion, and the second protrusion is used to abut against the second wall surface of the second limiting portion to limit the first extreme position of the rotation of the camera assembly around the first direction, wherein the second wall surface is the wall surface of the second limiting portion in the second direction and is adjacent to the second limiting plate.

[0021] Optionally, when the rotating bracket includes the first limiting portion, the first mounting plate is further used to abut against a third wall surface of the first limiting portion to limit the second limit position of the camera assembly rotating around the first direction, wherein the third wall surface is adjacent to the first wall surface and the first limiting plate respectively, or the third wall surface is opposite to the first wall surface;

[0022] When the rotating bracket includes the second limiting portion, the second mounting plate is also used to abut against the fourth wall surface of the second limiting portion to limit the second extreme position of the rotation of the camera assembly around the first direction, wherein the fourth wall surface is adjacent to the second wall surface and the second limiting plate respectively, or the fourth wall surface is opposite to the second wall surface.

[0023] Optionally, the camera assembly includes a cover;

[0024] The first mounting plate and the second mounting plate are respectively connected to the housing and at least partially exposed from the exposed side of the housing, and the exposed portions are connected to the rotating bracket;

[0025] The cover shell is used to abut against at least one of the first limiting plate and the second limiting plate through the edge of the exposed side to limit the second extreme position of the camera assembly rotating around the first direction.

[0026] Optionally, the smart door lock further includes a fixed bracket, the second motor is connected to the fixed bracket, and the fixed bracket is used to limit the range of rotation of the second motor around the second direction.

[0027] Optionally, the rotating bracket and the fixed bracket respectively have one and the other of a limiting protrusion and a limiting groove, wherein the limiting protrusion is at least partially located in the limiting groove and can slide in the limiting groove, and the limiting groove is used to limit the range of rotation of the rotating bracket around the second direction.

[0028] Optionally, the fixing bracket has a second through hole;

[0029] The housing of the second motor is fixed to the fixed bracket, the second output shaft of the second motor passes through the second through hole and is fixedly connected to the rotating bracket, wherein the opening direction of the second through hole is parallel to the second direction, and the second output shaft can rotate in the second through hole.

[0030] Optionally, the rotating bracket has a fixing groove, the opening direction of the notch in the fixing groove is parallel to the second direction, and the shape of the fixing groove is adapted to the shape of the second output shaft;

[0031] One end of the second output shaft passes through the second through hole and is fixed in the fixing groove, and the second output shaft is provided with a second fixing hole;

[0032] The camera module also includes a second connecting member, which passes through the bottom wall of the fixing groove and is inserted into the second fixing hole to fix the rotating bracket and the second output shaft, wherein the bottom wall is opposite to the notch.

[0033] Optionally, the fixing bracket includes a first fixing plate and a second fixing plate connected in a bent manner.

[0034] The second through hole is formed in the first fixing plate, the second motor and the rotating bracket are respectively located on two opposite sides of the first fixing plate, and the second fixing plate is used to be connected to the mounting carrier.

[0035] Optionally, the fixed bracket includes a first extension plate and a second extension plate which are arranged opposite to each other along the first direction, and the rotating bracket is limited between the first extension plate and the second extension plate.

[0036] Optionally, the maximum angle of rotation of the camera assembly around the first direction is 10°-20°; and / or,

[0037] The maximum angle at which the camera assembly rotates around the second direction is 15°-30°.

[0038] The beneficial effects of the embodiments of the present application are at least:

[0039] In the smart door lock provided in the embodiment of the present application, the rotating bracket provides an installation base for the camera assembly, and the camera assembly can rotate around the intersecting first direction and the second direction respectively under the drive of the first motor and the second motor, so that the camera assembly can adjust the image acquisition angle around at least two different directions, thereby expanding the image acquisition range of the camera assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0041] Figure 1 is a first structural schematic diagram of a camera module provided in an embodiment of the present application;

[0042] Figure 2 is a second structural schematic diagram of a camera module provided in an embodiment of the present application;

[0043] Figure 3 yes Figure 2 Exploded diagram of

[0044] Figure 4 is a third structural schematic diagram of a camera module provided in an embodiment of the present application;

[0045] Figure 5 is a fourth structural schematic diagram of a camera module provided in an embodiment of the present application;

[0046] Figure 6 This is a schematic diagram of a state switching structure of a camera module provided in an embodiment of the present application;

[0047] Figure 7 is an exploded diagram of a camera component in a camera module provided in an embodiment of the present application;

[0048] Figure 8 is a fifth structural schematic diagram of a camera module provided in an embodiment of the present application;

[0049] Fig. 9 yes Figure 8 Exploded diagram of

[0050] Fig.10 is a sixth structural schematic diagram of a camera module provided in an embodiment of the present application;

[0051] Fig.11 yes Fig.10 Exploded diagram of

[0052] Fig.12 is an exploded diagram of a camera module provided in an embodiment of the present application;

[0053] Fig.13 is a cross-sectional view of a camera module provided in an embodiment of the present application;

[0054] Fig.14 is a front view of a smart door lock provided in an embodiment of the present application;

[0055] Fig.15 It is an exploded diagram of a smart door lock provided in an embodiment of the present application.

[0056] Reference numerals:

[0057] 100. Camera module;

[0058] 1. Camera assembly; 11. First mounting plate; 111. First through hole; 112. First protrusion; 113. Third protrusion; 12. Second mounting plate; 121. First rotation hole; 122. Second protrusion; 123. Fourth protrusion; 13. Cover; 131. Light-transmitting hole; 14. Camera; 15. Camera fixing plate; 16. Filling light plate; 17. Adhesive; 18. Sealing member; 19. Light-transmitting cover plate;

[0059] 2. Rotating bracket; 21. First limiting plate; 211. Limiting groove; 2111. Bottom wall; 2112. First fixing hole; 22. Second limiting plate; 221. Second rotating hole; 23. First limiting portion; 231. First wall surface; 232. Third wall surface; 24. Second limiting portion; 241. Second wall surface; 242. Fourth wall surface; 25. Connecting plate; 26. Positioning boss; 261. Fixing groove; 27. Limiting protrusion;

[0060] 3. first motor; 31. first output shaft; 311. first plane; 312. second plane;

[0061] 4. second motor; 41. second output shaft; 411. second fixing hole;

[0062] 5. Rotate the connecting piece;

[0063] 6. A first connecting member;

[0064] 7. Fixed bracket; 71. First fixed plate; 711. Second through hole; 72. Second fixed plate; 73. Sleeve portion; 74. Position limiting slide groove; 75. First extension plate; 76. Second extension plate;

[0065] 8. A second connecting member;

[0066] 9. Bearings;

[0067] 200. Installing a carrier;

[0068] 300, decorative panels;

[0069] 400, induction module;

[0070] 500, fingerprint recognition module;

[0071] 600, password module;

[0072] 700. Controller. DETAILED DESCRIPTION

[0073] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0074] The present application embodiment provides a smart door lock, such as Figure 1 and Figure 2 As shown, the smart door lock includes a camera assembly 1, a rotating bracket 2, a first motor 3 and a second motor 4, wherein the camera assembly 1 is movably connected to the rotating bracket 2; the first motor 3 is connected to the camera assembly 1, and the first motor 3 is used to drive the camera assembly 1 to rotate around a first direction; the second motor 4 is connected to the rotating bracket 2, and the second motor 4 is used to drive the rotating bracket 2 to drive the camera assembly 1 to rotate around a second direction, wherein the second direction intersects with the first direction.

[0075] In the smart door lock provided in the embodiment of the present application, the rotating bracket 2 provides an installation basis for the camera assembly 1, and the camera assembly 1 can rotate around the intersecting first direction and the second direction respectively under the drive of the first motor 3 and the second motor 4, so that the camera assembly 1 can adjust the image acquisition angle around at least two different directions, thereby expanding the image acquisition range of the camera assembly 1.

[0076] The camera assembly 1, the rotating bracket 2, the first motor 3 and the second motor 4 can be used as a separate module in a smart door lock and can be called a "camera module". When this camera module capable of adjusting the camera angle is applied to a smart door lock, the image acquisition angle of the camera assembly 1 is adjusted by the first motor 3 and the second motor 4 in the camera module, thereby optimizing the image acquisition quality and improving the one-time pass rate of face recognition. For children with short stature who verify unlocking, or when the user stands at an angle when unlocking, the success rate and efficiency of unlocking are higher.

[0077] It is understandable that when the camera assembly 1 rotates around a first direction, the image acquisition angle of the camera assembly 1 on a plane (or direction) perpendicular to the first direction can be adjusted; similarly, when the camera assembly 1 rotates around a second direction, the image acquisition angle of the camera assembly 1 on a plane (or direction) perpendicular to the second direction can be adjusted. In some embodiments, the first direction and the second direction can be substantially perpendicular.

[0078] Exemplarily, the first direction may be a horizontal direction, and the second direction may be a vertical direction. The camera assembly 1 rotates around the first direction, allowing the camera assembly 1 to adjust the pitch angle; the camera assembly 1 rotates around the second direction, allowing the camera assembly 1 to adjust the horizontal angle.

[0079] In some embodiments, the first motor 3 and the second motor 4 can be stepper motors, respectively. The first motor 3 can be fixedly connected to the rotating bracket 2 to drive the camera assembly 1 to rotate relative to the rotating bracket 2 around a first direction. Exemplarily, the housing of the first motor 3 can be fixed on the rotating bracket 2, and the camera assembly 1 can be directly driven to rotate through its output shaft (hereinafter referred to as the first output shaft 31). Alternatively, unlike the solution of directly driving the camera assembly 1 to rotate by the direct output shaft, the housing of the first motor 3 can be fixedly connected to the camera assembly 1, and the first output shaft 31 can be fixedly connected to the rotating bracket 2, and the camera assembly 1 can be driven to rotate relative to the rotating bracket 2 through the relative movement between the first output shaft 31 and the housing of the first motor 3.

[0080] like Figure 2 As shown, the camera assembly 1 may include a first mounting plate 11 and a second mounting plate 12, and the rotating bracket 2 includes a first limiting plate 21 and a second limiting plate 22. The first mounting plate 11 and the first limiting plate 21 are stacked along the first direction, wherein the first mounting plate 11 may be provided with a first through hole 111, the housing of the first motor 3 is fixed to the first mounting plate 11, the first output shaft 31 of the first motor 3 passes through the first through hole 111 and is fixedly connected to the first limiting plate 21, the opening direction of the first through hole 111 may be parallel to the first direction, and the first output shaft 31 can rotate in the first through hole 111. The second mounting plate 12 and the second limiting plate 22 are stacked along the first direction, and the second mounting plate 12 and the second limiting plate 22 are rotatably connected, wherein the rotation axis is parallel to the first direction.

[0081] It is understandable that the first output shaft 31 of the first motor 3 extends along the first direction so that the first motor 3 can drive the camera assembly 1 connected thereto to rotate around the first direction. The rotation axis between the second mounting plate 12 and the second limiting plate 22 can coincide with the central axis of the first output shaft 31 .

[0082] Since the first output shaft 31 of the first motor 3 is fixed to the first limiting plate 21, and the housing of the first motor 3 is fixed to the first mounting plate 11, when the first output shaft 31 rotates relative to the housing of the first motor 3, within a rotation plane perpendicular to the first direction, the first output shaft 31 is restricted by the first limiting plate 21 and cannot move, so that the first mounting plate 11 fixedly connected to the housing of the first motor 3 is driven by the housing to rotate around the first direction relative to the first limiting plate 21.

[0083] In some embodiments, Figure 2 and Figure 3 As shown, the first mounting plate 11 and the second mounting plate 12 are arranged opposite to each other and spaced apart along the first direction; the first limiting plate 21 and the second limiting plate 22 can be arranged opposite to each other and spaced apart along the first direction. The first mounting plate 11 and the first limiting plate 21 are arranged adjacent to each other and can be connected together by the first output shaft 31 of the first motor 3. The second mounting plate 12 and the second limiting plate 22 are arranged adjacent to each other and can be connected together by the rotating connecting member 5.

[0084] like Figure 2 and Figure 3 As shown, a first rotating hole 121 may be opened on the second mounting plate 12, and a second rotating hole 221 may be opened on the second limiting plate 22. The rotating connecting member 5 can pass through the first rotating hole 121 and the second rotating hole 221, and can rotate in the first rotating hole 121 and / or the second rotating hole 221 to serve as a rotating axis between the second mounting plate 12 and the second limiting plate 22.

[0085] In some embodiments, the rotating connection member 5 can be fixedly connected to the second mounting plate 12, and the second limiting plate 22 can rotate around the rotating connection member 5. For example, Figure 2 and Figure 3 As shown, the rotating connection member 5 can have a hexagonal nut; two parallel convex strips can be opened on the side of the second mounting plate 12 away from the second limiting plate 22, and the two parallel sides of the hexagonal nut can be clamped between the two convex strips to limit the rotation of the hexagonal nut, and the second limiting plate 22 can rotate around the column of the rotating connection member 5.

[0086] In some embodiments, the first limiting plate 21 and the second limiting plate 22 may be located between the first mounting plate 11 and the second mounting plate 12; or, the first limiting plate 21, the first mounting plate 11, the second limiting plate 22 and the second mounting plate 12 may be arranged in sequence.

[0087] When implementing it, Figure 2 As shown, the first limit plate 21 and the second limit plate 22 are arranged oppositely and spaced apart, and the first mounting plate 11 and the second mounting plate 12 can be arranged oppositely and spaced apart between the first limit plate 21 and the second limit plate 22, wherein the housing of the first motor 3 is fixed to the side of the first mounting plate 11 facing the second mounting plate 12. In this way, the first mounting plate 11 and the second mounting plate 12 are arranged in the interval between the first limit plate 21 and the second limit plate 22, and the first motor 3 is further arranged in the interval between the first mounting plate 11 and the second mounting plate 12, and the positions between the various components are compact, which helps to reduce the overall volume of the camera module.

[0088] In some embodiments, Figure 2 and Figure 3 As shown, the first limiting plate 21 can be partially recessed in a direction away from the first mounting plate 11 to form a limiting groove 211, and the bottom wall 2111 of the limiting groove 211 is provided with a first fixing hole 2112. The first output shaft 31 is a flat shaft having a first plane 311 and a second plane 312 arranged opposite to each other, and one end of the first output shaft 31 passing through the first through hole 111 is located in the limiting groove 211, wherein the first plane 311 overlaps the bottom wall 2111. The camera module also includes a first connecting member 6, which passes through the second plane 312 and the first plane 311 in sequence, and is inserted into the first fixing hole 2112 to fix the first output shaft 31 and the first limiting plate 21.

[0089] like Figure 2 and Figure 3 As shown, the limiting groove 211 can be formed by the top edge of the first limiting plate 21 being recessed along the first direction, so that the limiting groove 211 has both an inlet along the first direction for the first output shaft 31 to extend into, and an open opening perpendicular to the first direction (for example, along the second direction) on one side of the top edge for the first connector 6 to be inserted, and the opening direction of the open opening can be perpendicular to the bottom wall 2111 of the limiting groove 211. Therefore, when the first output shaft 31 extends into the inlet toward the first mounting plate 11 and overlaps the first plane 311 on the bottom wall 2111, the second plane 312 can be exposed through the open opening, so that the first connector 6 can be directly installed on the second plane 312, and then penetrate the first plane 311 and a part of the bottom wall 2111.

[0090] The opening direction of the first fixing hole 2112 may be perpendicular to the first plane 311 and the second plane 312, so as to facilitate the insertion of the first connecting member 6. The first connecting member 6 may be, for example, a screw, a bolt, a rivet or other fasteners.

[0091] In some embodiments, such as Figure 3 As shown, the limiting groove 211 may be a rectangular groove, the first plane 311 is a rectangular plane, and the shape of the limiting groove 211 may be adapted to the shape of the first plane 311. The bottom wall 2111 of the limiting groove 211 may have a certain thickness to prevent the first connecting member 6 from penetrating and causing damage to other structures.

[0092] The camera module provided in the embodiment of the present application improves the stability of the fixed connection between the first limiting plate 21 and the first output shaft 31 by setting the limiting groove 211 to fix the first output shaft 31. And when the camera assembly 1 and the first motor 3 are assembled to the rotating bracket 2, the first output shaft 31 passes through the first through hole 111 and overlaps the first plane 311 on the bottom wall 2111 of the limiting groove 211, which can play a positioning role and is easier to align the second rotating hole 221 on the second limiting plate 22 and the first rotating hole 121 on the second mounting plate 12, thereby improving the assembly efficiency of the rotating connector 5.

[0093] It is understandable that the camera assembly 1 is movably connected to the rotating bracket 2, so that the camera assembly 1 can move relative to the rotating bracket 2 under the drive of the first motor 3. In some embodiments, the rotating bracket 2 can also be used to limit the range of rotation of the camera assembly 1 around the first direction to prevent the camera assembly 1 from excessively rotating relative to the rotating bracket 2.

[0094] Figure 4 shows a schematic structural diagram of the camera assembly 1 in the first extreme position, Figure 2 and Figure 5 Two structural schematic diagrams of the camera assembly 1 in the second extreme position are respectively shown. Wherein, when the first direction is the horizontal direction, the first extreme position can be the upward extreme position of the camera assembly 1, and the second extreme position can be the downward extreme position of the camera assembly 1.

[0095] like Figure 2 and Figure 4 As shown, the rotating bracket 2 may also include a first limiting portion 23, which is protruding from the side of the first limiting plate 21 facing the first mounting plate 11. The first mounting plate 11 can be used to abut against the first limiting portion 23 to limit the range of rotation of the camera assembly 1 around the first direction.

[0096] In some embodiments, the first mounting plate 11 may have a first protrusion 112, which is used to abut against the first wall 231 of the first limiting portion 23 to limit the first extreme position of the rotation of the camera assembly 1 around the first direction, wherein the first wall 231 is the wall of the first limiting portion 23 in the second direction, and the first wall 231 is adjacent to the first limiting plate 21.

[0097] Exemplarily, the first limiting plate 21 and the first mounting plate 11 are stacked along the first direction, and the first limiting portion 23 can be located at one side edge of the first limiting plate 21 and protrude along the first direction relative to the first limiting plate 21, so that it can serve as a folding edge of the first limiting plate 21 and cooperate with the first limiting plate 21 to form a bending space, and one side edge of the first mounting plate 11 can be at least partially accommodated in the bending space.

[0098] The first protrusion 112 on the first mounting plate 11 may be located outside the bending space, for example, located above the top of the bending space, so that the camera assembly 1 is Figure 2 The state shown moves clockwise to Figure 4 In the state shown, the lower side of the first protrusion 112 can abut against the upper side (first wall 231) of the first limit portion 23. In some embodiments, the first wall 231 can be perpendicular to the second direction, so that the first limit portion 23 can be used to abut against the first protrusion 112 along the second direction to limit the first limit position of the camera assembly 1 rotating around the first direction.

[0099] In some embodiments, the second limiting plate 22 may be provided with a second limiting portion 24 similar to the first limiting plate 21 . That is, the rotating bracket 2 may include at least one of the first limiting portion 23 and the second limiting portion 24 .

[0100] In a specific implementation, the second limiting portion 24 is protruded from the side of the second limiting plate 22 facing the second mounting plate 12 , and the second mounting plate 12 can be used to abut against the second limiting portion 24 to limit the range of rotation of the camera assembly 1 around the first direction.

[0101] Exemplarily, the second mounting plate 12 may have a second protrusion 122, which is used to abut against the second wall 241 of the second limiting portion 24 to limit the first extreme position of the rotation of the camera assembly 1 around the first direction, wherein the second wall 241 is the wall of the second limiting portion 24 in the second direction, and the second wall 241 is adjacent to the second limiting plate 22.

[0102] The second limiting portion 24 can cooperate with the second limiting plate 22 to form a bending space, and a side edge of the second mounting plate 12 can be at least partially accommodated in the bending space. The second wall surface 241 can be perpendicular to the second direction, so that the second limiting portion 24 can be used to abut against the second protrusion 122 along the second direction to limit the first limit position of the camera assembly 1 rotating around the first direction.

[0103] like Figure 4 and Figure 5As shown, the first wall surface 231 and the second wall surface 241 can be planes respectively, and the bottom side surface of the first protrusion 112 toward the first limiting portion 23 and the bottom side surface of the second protrusion 122 toward the second limiting portion 24 can also be set as planes, so as to facilitate mutual abutment and limiting. In other embodiments, the first wall surface 231 and the second wall surface 241, and at least one of the bottom side surface of the first protrusion 112 and the bottom side surface of the second protrusion 122 can also be set as an arc surface. The first limiting portion 23 can be a strip-shaped protrusion or a convex block extending along the second direction, and the first limiting portion 23 can be set at a side edge of the first limiting plate 21 along the third direction, and the third direction can be perpendicular to the first direction and the second direction. Similarly, the second limiting portion can be a strip-shaped protrusion or a convex block extending along the second direction, and the first limiting portion 23 can be set at a side edge of the second limiting plate 22 along the third direction.

[0104] In some embodiments, when the rotating bracket 2 includes the second limiting portion 24, the second mounting plate 12 can also be used to abut against the fourth wall surface 242 of the second limiting portion 24 to limit the second limit position of the camera assembly 1 rotating around the first direction, wherein Figure 2 As shown, the fourth wall 242 is adjacent to the second wall 241 and the second limiting plate 22, respectively, or as shown in Figure 5 As shown, the fourth wall surface 242 is opposite to the second wall surface 241 .

[0105] like Figure 2 As shown, the fourth wall surface 242 may be the inner surface of the second position-limiting portion 24 facing the second mounting plate 12. Figure 4 In the state shown, move counterclockwise to Figure 2 In the state shown, the bottom edge of the second mounting plate 12 will continuously move toward the direction close to the second limiting portion 24, so that the inner surface of the second limiting portion 24 facing the second mounting plate 12 can abut against the bottom edge of the second mounting plate 12 to limit the camera assembly 1 to the second extreme position of rotation around the first direction. Figure 2 It can be seen that the bottom edge of the second mounting plate 12 can be the edge of the second mounting plate 12 located in the bending space and close to the second limiting portion 24. In this case, the second limiting portion 24 can be a convex strip extending along the second direction, so that the fourth wall surface 242 has a sufficiently long distance in the second direction to cooperate with the second mounting plate 12.

[0106] In some embodiments, the bottom edges of the second mounting plate 12 and the first mounting plate 11 described below may have smooth chamfered portions, and the second mounting plate 12 and the first mounting plate 11 may be abutted against the first limit portion 23 or the second limit portion 24 through the chamfered portions to limit the second extreme position of the rotation of the camera assembly 1.

[0107] like Figure 5 As shown, the second position-limiting portion 24 can be set as a convex block, and the side surface of the second position-limiting portion 24 opposite to the second wall surface 241 can also be exposed relative to the second position-limiting plate 22. Exemplarily, the second wall surface 241 can be the upper side surface of the second position-limiting portion 24 along the second direction, and the side surface opposite to the second wall surface 241 can be the lower side surface of the second position-limiting portion 24 along the second direction. The second mounting plate 12 can also be provided with a fourth protrusion 123, which can be opposite to the second protrusion 122 and is used to abut against the side surface opposite to the second wall surface 241 to limit the second limit position of the camera assembly 1 rotating around the first direction.

[0108] Similar to the second mounting plate 12, when the rotating bracket 2 includes the first limiting portion 23, the first mounting plate 11 can also be used to abut against the third wall surface 232 of the first limiting portion 23 to limit the second limit position of the camera assembly 1 rotating around the first direction, wherein Figure 2 As shown, the third wall surface 232 may be adjacent to the first wall surface 231 and the first limiting plate 21 respectively; or Figure 5 As shown, the third wall surface 232 is opposite to the first wall surface 231 .

[0109] like Figure 2 As shown, the third wall surface 232 may be the inner surface of the first limiting portion 23 facing the first mounting plate 11. Figure 5 As shown, the first mounting plate 11 may also be provided with a third protrusion 113, which may be opposite to the first protrusion 112 and used to abut against a side surface opposite to the first wall 231 to limit the second extreme position of the camera assembly 1 rotating around the first direction.

[0110] As described above, the camera assembly 1 can achieve the limitation at two extreme positions during the rotation around the first direction by cooperating with different wall surfaces of the first limiting portion or the second limiting portion 24. Figure 6 As shown, the camera assembly 1 may further include a cover 13, wherein the first mounting plate 11 and the second mounting plate 12 are connected to the cover 13 and at least partially exposed from the exposed side of the cover 13, and the exposed portion is connected to the rotating bracket 2. The cover 13 is used to abut against at least one of the first limiting plate 21 and the second limiting plate 22 through the edge of the exposed side to limit the camera assembly 1 to a second extreme position of rotation around the first direction.

[0111] In the embodiment of the present application, the maximum angle of rotation of the camera assembly 1 around the first direction is 10°-20°, and the maximum angle of rotation of the camera assembly 1 around the second direction is 15°-30°. Exemplarily, the maximum angle of unilateral rotation of the camera assembly 1 around the first direction is 10°, that is, the angle between the two extreme positions of rotation around the first direction is 20°; the maximum angle of unilateral rotation around the second direction is 15°, that is, the angle between the two extreme positions of rotation around the second direction is 30°. In this case, it may not be possible to simultaneously limit the first extreme position and the second extreme position by the first limiting portion or the second limiting portion 24. In this regard, the first limiting plate 21 and the second limiting plate 22 may be used to limit the extreme positions of rotation of the camera assembly 1.

[0112] Figure 6 In the figure, the left figure shows the state of the camera assembly 1 in the second extreme position, and the right figure shows the state of the camera assembly 1 in the first extreme position. Figure 2 and Figure 6 As shown, when the camera assembly 1 is in the first extreme position, the distance between the lower edge of the cover 13 and the first limit plate 21 and the second limit plate 22 is relatively large; and when the camera assembly 1 is in the second extreme position, the lower edge of the cover 13 abuts against the first limit plate 21 and the second limit plate 22 to achieve limiting.

[0113] like Figure 6 and Figure 7 As shown, the housing 13 may be a spherical ring-shaped component, and the camera assembly 1 may further include a camera 14, which may be fixed in the annular space of the housing 13. The side with a smaller diameter in the housing 13 is a light-transmitting side, and the camera 14 may collect images through the light-transmitting side. Figure 1 and Figure 7 As shown, a light-transmitting hole 131 may be opened on the light-transmitting side of the housing 13 , and the camera 14 is fixed in the housing 13 and exposed from the light-transmitting hole 131 .

[0114] The side with a larger diameter in the housing 13 is the exposed side, which is opposite to the light-transmitting side. Figure 7 It can be seen that the exposed side of the housing 13 is open, one end of the first limiting plate 21 and the second limiting plate 22 are connected to the inner wall of the housing 13, and the other end extends out of the exposed side. There is a certain gap between the first limiting plate 21 and the second limiting plate 22 and the two side edges of the housing 13 along the first direction. In some embodiments, the housing 13 is integrated with the first mounting plate 11 and the second mounting plate 12.

[0115] like Figure 1 and Figure 6As shown, the exposed side and the light-transmitting side can be opposite to each other in the front-to-back direction, so that the relative arrangement direction of the exposed side and the light-transmitting side can be perpendicular to the first direction and the second direction. In other words, the light-transmitting side and the exposed side can be opposite to each other in a third direction, wherein the third direction can be perpendicular to the first direction and the second direction. In this way, by arranging the first motor 3 at the rear end of the camera 14, the first motor 3 is prevented from affecting the image acquisition range of the camera 14.

[0116] In some embodiments, Figure 7 As shown, the camera assembly 1 may further include a camera fixing plate 15, and the camera 14 may be fixed on the camera fixing plate 15, and then connected to the housing 13 through the camera fixing plate 15. In addition, the camera fixing plate 15 may be located between the camera 14 and the first motor 3 to prevent the first motor 3 from affecting the operation of the camera 14.

[0117] like Figure 7 As shown, the camera assembly 1 may also include a fill light plate 16, an adhesive 17, a seal 18 and a light-transmitting cover plate 19, wherein the fill light plate 16 is fixed in the housing 13 and is located on the side of the camera fixing plate 15 facing the light-transmitting side. The fill light plate 16 may be provided with an infrared lamp for performing infrared fill light for the camera 14 to improve the image acquisition quality of the camera 14. The light-transmitting cover plate 19 may be located on the light-transmitting side of the housing 13 and adhered to the outside of the housing 13 through the adhesive 17, and may serve as a protective layer to achieve dustproof and waterproof lamp functions. The seal 18 may be, for example, camera silicone, which may be sleeved on the camera 14 to seal the gap between the camera 14 and the light-transmitting hole 131.

[0118] based on Figure 1 and Figure 6 It can be seen that the size of the camera assembly 1 is determined based on the housing 13. For camera assemblies 1 with the same housing 13 size, the maximum spacing between the first mounting plate 11 and the second mounting plate 12 is basically determined. In this case, the first limiting plate 21 and the second limiting plate 22 are arranged outside the first mounting plate 11 and the second mounting plate 12, and the first motor 3 is arranged between the first mounting plate 11 and the second mounting plate 12, so that sufficient installation space can be reserved for the first motor 3, and the gap between the first mounting plate 11 and the second mounting plate 12 and the side wall of the arc-shaped housing 13 can be fully utilized.

[0119] As described above, the rotating bracket 2 provides a fixed carrier for the first motor 3. Similarly, in order to facilitate the fixing of the second motor 4, as shown in FIG. Figure 8 As shown, the camera module may further include a fixed bracket 7, to which the second motor 4 is connected, and the fixed bracket 7 may be used to limit the range of rotation of the second motor 4 around the second direction.

[0120] Exemplarily, the second motor 4 can be fixed to the fixed bracket 7, and the rotating bracket 2 can be movably connected to the fixed bracket 7, so that the second motor 4 can drive the rotating bracket 2 to drive the camera assembly 1 to rotate around the second direction relative to the fixed bracket 7.

[0121] In some embodiments, Figure 8 and Fig. 9 As shown, the fixed bracket 7 may include a first fixed plate 71 , and the rotating bracket 2 and the second motor 4 may be fixed on opposite sides of the first fixed plate 71 , respectively.

[0122] In addition, if Figure 8 and Fig. 9 As shown, the rotating bracket 2 may further include a connecting plate 25, which may be connected between the first limiting plate 21 and the second limiting plate 22, so that the rotating bracket 2 is a U-shaped structure as a whole. When the camera module is applied to a smart door lock, and the second direction is a vertical direction, the opening of the U-shaped rotating bracket 2 is upward, the first mounting plate 11, the second mounting plate 12 and the first motor 3 are assembled in the U-shaped space of the rotating bracket 2, and the connecting plate 25 is located below the first motor 3 to be connected to the fixed bracket 7.

[0123] like Fig.10 and Fig.11 As shown, the fixed bracket 7 may have a second through hole 711; the shell of the second motor 4 is fixed to the fixed bracket 7, the second output shaft 41 of the second motor 4 passes through the second through hole 711 and is fixedly connected to the rotating bracket 2, wherein the opening direction of the second through hole 711 is parallel to the second direction, and the second output shaft 41 can rotate in the second through hole 711.

[0124] It can be understood that the second output shaft 41 of the second motor 4 extends along the second direction, so that the second motor 4 can drive the rotating bracket 2 and the camera assembly 1 connected thereto to rotate around the second direction. The central axis of the second output shaft 41 is the rotation axis of the rotating bracket 2. In some embodiments, the distance from the central axis of the second output shaft 41 to the first limiting plate 21 along the first direction and the distance from the central axis of the second output shaft 41 to the second limiting plate 22 along the first direction can be substantially equal.

[0125] In some embodiments, to achieve a fixed connection between the second output shaft 41 and the rotating bracket 2, as shown in FIG. Fig.12As shown, the rotating bracket 2 may have a fixing groove 261, and the opening direction of the notch in the fixing groove 261 is parallel to the second direction. The shape of the fixing groove 261 is adapted to the shape of the second output shaft 41, and one end of the second output shaft 41 passes through the second through hole 711 and is fixed in the fixing groove 261 to drive the rotating bracket 2 to rotate. In addition, the second output shaft 41 is provided with a second fixing hole 411; the camera module also includes a second connecting member 8, which passes through the bottom wall of the fixing groove 261 and is inserted into the second fixing hole 411 to fix the rotating bracket 2 and the second output shaft 41, wherein the bottom wall of the fixing groove 261 is opposite to the notch.

[0126] In some embodiments, the second output shaft 41 may be a flat shaft, which matches the shape of the second output shaft 41, and the bottom-closed fixing groove 261 may be, for example, a waist-shaped groove. Exemplarily, the second output shaft 41 may have two opposite planes, and when the second output shaft 41 is located in the fixing groove 261, the two planes may respectively abut against the two side walls of the fixing groove 261 extending along its length direction, so that the second output shaft 41 cannot rotate in the fixing groove 261, and the rotation of the second output shaft 41 drives the rotating bracket 2 to rotate.

[0127] The second connecting member 8 may be, for example, a screw, a bolt, a rivet or other fasteners. A through hole along the second direction may be provided on the bottom wall of the fixing groove 261, and the second connecting member 8 may pass through the through hole and be inserted into the second output shaft 41. Fig.11 and Fig.12 As shown, the second connecting member 8 can be inserted along the second direction so that the second output shaft 41 is away from the top end of the housing of the second motor 4.

[0128] In some embodiments, the second through hole 711 can be opened on the first fixing plate 71 of the fixing bracket 7, and the second through hole 711 can be a circular hole, and its size is larger than that of the second output shaft 41, so that the second output shaft 41 can rotate freely in the second through hole 711.

[0129] When the camera module is applied to a smart door lock, the housing for pressing the smart door lock may cause displacement of the fixed bracket 7 or the second motor 4, resulting in the displacement of the rotation axis of the rotating bracket 2 and the camera assembly 1, and may damage the second output shaft 41. In order to improve the overall fixing stability of the second motor 4, the fixed bracket 7 and the rotating bracket 2, the rotating bracket 2 includes a positioning boss 26, the outer contour of the positioning boss 26 is circular, and the fixing groove 261 is opened on the positioning boss 26; the fixed bracket 7 includes a sleeve portion 73, and the sleeve portion 73 is sleeved on the outside of the positioning boss 26; and the camera module also includes a bearing 9, which is sleeved between the positioning boss 26 and the sleeve portion 73. In this way, the bearing 9 can be sleeved between the positioning boss 26 and the sleeve portion 73 to provide support in the third direction, thereby improving the fixing stability. The third direction can be perpendicular to the first direction and perpendicular to the second direction.

[0130] In some embodiments, the inner ring of the bearing 9 may be fixed relative to the positioning boss 26 and rotate with the rotating bracket 2, and the inner diameter of the inner ring may be substantially equal to the inner diameter of the second through hole 711. The outer ring of the bearing 9 may be fixed relative to the sleeve portion 73.

[0131] The positioning boss 26 may be on the connecting plate 25 in the rotating bracket 2, and may protrude relative to the connecting plate 25 in a direction close to the first fixing plate 71 (or the second motor 4). The sleeve portion 73 may be located on a side of the first fixing plate 71 close to the rotating bracket 2, and may protrude relative to the first fixing plate 71. In some embodiments, at least part of the surface surrounding the positioning boss 26 may be parallel to the surface of the first fixing plate 71, so that these surfaces may overlap with the protruding upper edge of the sleeve portion 73 or with the upper edge of the bearing 9 close to the rotating bracket 2.

[0132] In some embodiments, Fig.12 and Fig.13 As shown, the rotating bracket 2 and the fixed bracket 7 respectively have one and the other of a limiting protrusion 27 and a limiting groove 74, wherein the limiting protrusion 27 is at least partially located in the limiting groove 74 and can slide in the limiting groove 74, and the limiting groove 74 is used to limit the range of rotation of the rotating bracket 2 around the second direction.

[0133] Exemplarily, the limiting protrusion 27 can be provided on the rotating bracket 2, and is located on the same side of the rotating bracket 2 as the positioning boss 26. The limiting slide groove 74 can be provided on the fixed bracket 7, and is spaced apart from the second through hole 711. The limiting slide groove 74 is an arc-shaped groove, which is recessed in a direction away from the second through hole 711 to adapt to the rotation trajectory of the rotating bracket 2. In some embodiments, the limiting slide groove 74 can be a through hole that penetrates the first fixed plate 71.

[0134] When the camera module is applied to a smart door lock, the fixed bracket 7 can be fixed relative to the door body to serve as a mounting base for the entire camera module. In other words, the fixed bracket 7 can also be connected to the mounting carrier 200, and the mounting carrier 200 can be, for example, a door lock housing or a door body. Exemplarily, the fixed bracket 7 can also include a second fixed plate 72, which is bent and connected to the first fixed plate 71; a second through hole 711 is provided on the first fixed plate 71, and the second motor 4 and the rotating bracket 2 are respectively located on opposite sides of the first fixed plate 71, so that the second output shaft 41 can pass through the second through hole 711 and be connected to the rotating bracket 2; the second fixed plate 72 is used to be connected to the mounting carrier 200.

[0135] In this way, when the camera module is applied to a smart door lock, the camera module can be modularly arranged. When assembling the camera module, the user can first install the camera assembly 1 and the first motor 3 on the rotating bracket 2 to form an intermediate assembly, and then integrally install the intermediate assembly on the fixing bracket 7 to form the entire camera module, and then fix the entire camera module to the door lock housing through the fixing bracket 7, so that the assembly efficiency is high.

[0136] like Fig. 9 and Fig.10 As shown, the fixed bracket 7 may further include a first extension plate 75 and a second extension plate 76 that are arranged opposite to each other along the first direction, and the rotating bracket 2 is limited between the first extension plate 75 and the second extension plate 76 .

[0137] In some embodiments, the adjacent two sides of the first extension plate 75 can be connected to the first fixed plate 71 and the second fixed plate 72 respectively, and the adjacent two sides of the second extension plate 76 can be connected to the first fixed plate 71 and the second fixed plate 72 respectively, so that the first fixed plate 71, the second fixed plate 72, the first extension plate 75 and the second extension plate 76 surround a limited space, and the rotating bracket 2 is located in the limited space.

[0138] In some embodiments, at least one of the first extension plate 75 and the second extension plate 76 may be used to abut against the rotating bracket 2 to limit the range of rotation of the rotating bracket 2 around the second direction.

[0139] The present application also provides a smart door lock. Fig.14 As shown, the smart door lock includes a mounting carrier 200 and the camera module 100 as above, wherein the mounting carrier 200 is used to connect with the door body, and the camera module 100 is fixed to the mounting carrier 200, so that the camera module 100 can be assembled into the smart door lock as a modular whole. Exemplarily, the mounting carrier 200 is a door lock shell, and the camera module 100 can be located in the inner cavity of the door lock shell.

[0140] In some embodiments, Fig.15 As shown, the smart door lock may further include a decorative panel 300, and the decorative panel 300 and the camera module 100 may be respectively located on opposite sides of the mounting carrier 200. The mounting carrier 200 and the decorative panel 300 may be respectively provided with corresponding avoidance holes, so that the camera assembly 1 can be exposed from the avoidance holes to collect images.

[0141] In some embodiments, the smart door lock may also include a controller 700, which is used to: obtain images captured by the camera component 1; identify the position of the face in the image; and drive at least one of the first motor 3 and the second motor 4 according to the position to adjust the image capture angle of the camera component 1.

[0142] Exemplarily, when the face recognized by the controller 700 is above or below the image, the first motor 3 can be driven to rotate to adjust the pitch angle of the camera assembly 1; when the face recognized by the controller 700 is to the left or right of the image, the second motor 4 can be driven to rotate to adjust the horizontal angle of the camera assembly 1, so that the face can be basically in the middle area of ​​the image. Exemplarily, when the face recognized by the controller 700 is located below the image, the first motor 3 can be driven to control the camera assembly 1 to rotate downward; when the face recognized by the controller 700 is located on the left side of the image, the second motor 4 can be driven to control the camera assembly 1 to rotate to the left.

[0143] In some embodiments, the smart door lock further includes a human body sensing module 400, which is used to detect whether there is a human body in a set area; the controller 700 is connected to the sensing module signal, and is used to start the camera assembly 1 in response to the presence of a human body in the set area to collect images. Exemplarily, the human body sensing module 400 can be at least one of a radar module or an infrared sensing module.

[0144] In some embodiments, the smart door lock can be a door lock that integrates face recognition and electronic cat's eye. That is, the camera assembly 1 in the camera module 100 can monitor the surrounding environment of the door in real time, and can also collect face images and send them to the controller when the human body sensing module 400 detects a human body approaching, so as to perform face recognition verification function.

[0145] In some embodiments, Fig.14 As shown, the smart door lock may also include at least one of a fingerprint recognition module 500 and a password module 600 .

[0146] In the description of the present disclosure, it should be understood that the terms (if any) "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0147] Unless otherwise clearly specified and limited, the terms (if any) "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0148] In addition, the terms "first" and "second", if any, are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0149] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0150] In the description of this specification, the reference terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application.

[0151] The above description is only an embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A smart door lock, characterized in that: The smart door lock comprises a camera module, wherein the camera module comprises a camera assembly (1), a rotating bracket (2), a first motor (3) and a second motor (4); The camera assembly (1) is movably connected to the rotating bracket (2); The first motor (3) is connected to the camera assembly (1), and the first motor (3) is used to drive the camera assembly (1) to rotate around a first direction; The second motor (4) is connected to the rotating bracket (2), and the second motor (4) is used to drive the rotating bracket (2) to drive the camera assembly (1) to rotate around a second direction; The first direction and the second direction are respectively one and the other of a horizontal direction and a vertical direction.

2. The smart door lock according to claim 1, characterized in that: The rotating bracket (2) is used to limit the range of rotation of the camera assembly (1) around the first direction.

3. The smart door lock according to claim 1, characterized in that: The camera assembly (1) comprises a first mounting plate (11) and a second mounting plate (12); the rotating bracket (2) comprises a first limiting plate (21) and a second limiting plate (22); The first mounting plate (11) and the first limiting plate (21) are stacked along the first direction, the first mounting plate (11) is provided with a first through hole (111), the housing of the first motor (3) is fixed to the first mounting plate (11), the first output shaft (31) of the first motor (3) passes through the first through hole (111) and is fixedly connected to the first limiting plate (21), wherein the opening direction of the first through hole (111) is parallel to the first direction, and the first output shaft (31) can rotate in the first through hole (111); The second mounting plate (12) and the second limiting plate (22) are stacked along the first direction and are rotationally connected, wherein the rotation axis is parallel to the first direction.

4. The smart door lock according to claim 3, characterized in that: The first limiting plate (21) and the second limiting plate (22) are arranged opposite to each other and spaced apart, the first mounting plate (11) and the second mounting plate (12) are located opposite to each other and spaced apart between the first limiting plate (21) and the second limiting plate (22), wherein the housing of the first motor (3) is fixed to a side of the first mounting plate (11) facing the second mounting plate (12).

5. The smart door lock according to claim 3, characterized in that: The first limiting plate (21) is partially recessed in a direction away from the first mounting plate (11) to form a limiting groove (211), and a first fixing hole (2112) is formed on a bottom wall (2111) of the limiting groove (211); The first output shaft (31) is a flat shaft having a first plane (311) and a second plane (312) arranged opposite to each other, and one end of the first output shaft (31) passing through the first through hole (111) is located in the limiting groove (211), wherein the first plane (311) overlaps with the bottom wall (2111); The camera module also includes a first connecting member (6), which passes through the second plane (312) and the first plane (311) in sequence and is inserted into the first fixing hole (2112) to fix the first output shaft (31) and the first limiting plate (21).

6. The smart door lock according to claim 3, characterized in that: The rotating bracket (2) further comprises a first limiting portion (23), the first limiting portion (23) being protrudingly arranged on a side of the first limiting plate (21) facing the first mounting plate (11), the first mounting plate (11) being used to abut against the first limiting portion (23) to limit the range of rotation of the camera assembly (1) around the first direction; and / or, The rotating bracket (2) further comprises a second limiting portion (24), the second limiting portion (24) being protruding from a side of the second limiting plate (22) facing the second mounting plate (12), the second mounting plate (12) being used to abut against the second limiting portion (24) to limit the range of rotation of the camera assembly (1) around the first direction.

7. The smart door lock according to claim 6, characterized in that: When the rotating bracket (2) includes the first limiting portion (23), the first mounting plate (11) has a first protruding portion (112), and the first protruding portion (112) is used to abut against a first wall surface (231) of the first limiting portion (23) to limit the camera assembly (1) to a first extreme position of rotation around the first direction, wherein the first wall surface (231) is a wall surface of the first limiting portion (23) in the second direction and is adjacent to the first limiting plate (21); When the rotating bracket (2) includes the second limiting portion (24), the second mounting plate (12) has a second protruding portion (122), and the second protruding portion (122) is used to abut against a second wall surface (241) of the second limiting portion (24) to limit the first extreme position of rotation of the camera assembly (1) around the first direction, wherein the second wall surface (241) is the wall surface of the second limiting portion (24) in the second direction and is adjacent to the second limiting plate (22).

8. The smart door lock according to claim 7, characterized in that: When the rotating bracket (2) includes the first limiting portion (23), the first mounting plate (11) is further used to abut against a third wall surface (232) of the first limiting portion (23) to limit the second extreme position of the camera assembly (1) rotating around the first direction, wherein the third wall surface (232) is adjacent to the first wall surface (231) and the first limiting plate (21) respectively, or the third wall surface (232) is opposite to the first wall surface (231); When the rotating bracket (2) includes the second limiting portion (24), the second mounting plate (12) is also used to abut against the fourth wall surface (242) of the second limiting portion (24) to limit the second extreme position of the rotation of the camera assembly (1) around the first direction, wherein the fourth wall surface (242) is respectively adjacent to the second wall surface (241) and the second limiting plate (22), or the fourth wall surface (242) is opposite to the second wall surface (241).

9. The smart door lock according to claim 3, characterized in that: The camera assembly (1) comprises a cover shell (13); The first mounting plate (11) and the second mounting plate (12) are respectively connected to the cover shell (13) and at least partially exposed from the exposed side of the cover shell (13), and the exposed portions are connected to the rotating bracket (2); The cover shell (13) is used to abut against at least one of the first limiting plate (21) and the second limiting plate (22) through the edge of the exposed side, so as to limit the second extreme position of the rotation of the camera assembly (1) around the first direction.

10. The smart door lock according to any one of claims 1 to 9, characterized in that: The camera module also includes a fixed bracket (7), the second motor (4) is connected to the fixed bracket (7), and the fixed bracket (7) is used to limit the range of rotation of the second motor (4) around the second direction.

11. The smart door lock according to claim 10, characterized in that: The rotating bracket (2) and the fixed bracket (7) respectively have one and the other of a limiting protrusion (27) and a limiting sliding groove (74), wherein the limiting protrusion (27) is at least partially located in the limiting sliding groove (74) and can slide in the limiting sliding groove (74), and the limiting sliding groove (74) is used to limit the range of rotation of the rotating bracket (2) around the second direction.

12. The smart door lock according to claim 10, characterized in that: The fixing bracket (7) has a second through hole (711); The housing of the second motor (4) is fixed to the fixed bracket (7), and the second output shaft (41) of the second motor (4) passes through the second through hole (711) and is fixedly connected to the rotating bracket (2), wherein the opening direction of the second through hole (711) is parallel to the second direction, and the second output shaft (41) can rotate in the second through hole (711).

13. The smart door lock according to claim 12, characterized in that: The rotating bracket (2) has a fixing groove (261), the opening direction of the notch in the fixing groove (261) is parallel to the second direction, and the shape of the fixing groove (261) is adapted to the shape of the second output shaft (41); One end of the second output shaft (41) passes through the second through hole (711) and is fixed in the fixing groove (261) to drive the rotating bracket (2) to rotate, and the second output shaft (41) is provided with a second fixing hole (411); The camera module also includes a second connecting member (8), which passes through the bottom wall of the fixing groove (261) and is inserted into the second fixing hole (411) to fix the rotating bracket (2) and the second output shaft (41), wherein the bottom wall is opposite to the notch.

14. The smart door lock according to claim 12, characterized in that: The fixing bracket (7) comprises a first fixing plate (71) and a second fixing plate (72) which are bent and connected. The second through hole (711) is provided on the first fixing plate (71), the second motor (4) and the rotating bracket (2) are respectively located on two opposite sides of the first fixing plate (71), and the second fixing plate (72) is used to be connected to the mounting carrier (200).

15. The smart door lock according to claim 10, characterized in that: The fixed bracket (7) comprises a first extension plate (75) and a second extension plate (76) which are arranged opposite to each other along the first direction, and the rotating bracket (2) is limited between the first extension plate (75) and the second extension plate (76).

16. The smart door lock according to any one of claims 1 to 15, characterized in that: The maximum angle at which the camera assembly (1) rotates around the first direction is 10°-20°; and / or, The maximum angle at which the camera assembly (1) rotates around the second direction is 15°-30°.

Images