Connecting structure of intelligent lock sticker

Abstract

The connecting structure comprises a mechanical lock and the intelligent lock sticker connected with the mechanical lock, the mechanical lock comprises a lock shell part and a lock liner part, a lock liner is installed in the lock liner part, the intelligent lock sticker is used for driving the lock liner to rotate so that the mechanical lock can be locked or unlocked, and a key hole is formed in one end of the lock liner; the other end of the lock liner is provided with a connecting hole which is conveniently connected with the intelligent lock sticker, the intelligent lock sticker comprises a connector, the outer side wall face of the connector is provided with a first protruding part, and the side wall of the lock shell part is correspondingly provided with a first groove where the first protruding part is embedded; the middle of the connector is rotationally connected with a connecting shaft with the two ends penetrating out of the connector, one end of the connecting shaft is connected into the connecting hole in a limited mode so as to drive the lock cylinder to rotate synchronously, and the other end of the connecting shaft is connected into the intelligent lock sticker. The internal space of the lock cylinder is directly utilized, and the requirement for an additional mounting plate is omitted.

Description

Technical Field

[0001] The invention relates to the field of locks, and specifically designs a connection structure of a smart lock sticker. Background Art

[0002] With the rapid development of technologies such as the Internet of Things, mobile Internet, and artificial intelligence, smart locks have been rapidly promoted as part of smart homes. Smart locks not only provide higher security, but also implement functions such as remote control, automatic unlocking, user rights management, and access records. However, existing smart locks usually require a complete replacement of the original mechanical lock system, which not only increases user costs but also causes a waste of resources.

[0003] In this context, smart lock stickers have emerged as an innovative solution. Smart lock stickers are a device specially designed to connect to ordinary mechanical lock cylinders. They can give them intelligent features without changing the original mechanical lock structure. By installing smart lock stickers, users can keep the existing mechanical lock cylinder and enjoy the convenience and advanced functions brought by smart locks.

[0004] At present, the existing smart lock sticker solutions on the market generally require an additional fixing plate to be installed on the door to connect the mechanical lock cylinder and the smart lock sticker. This practice not only increases the number of parts, resulting in an increase in manufacturing and assembly costs, but also makes the entire installation process more complicated. For ordinary users, the additional installation steps may be beyond their skills, causing them to have to seek help from professionals, thereby increasing installation time and costs. At the same time, the additional installation plate often needs to occupy a certain amount of door surface space, which may destroy the overall beauty of the original facade, especially in some occasions with high requirements for decoration. In addition, the presence of the fixing plate may also become a place for dust and other dirt to accumulate, affecting long-term cleaning and maintenance. At the same time, in order to facilitate the connection with the mechanical lock cylinder, the existing smart lock stickers usually have a more complex internal structure to ensure that they can work stably with various types of lock cylinders. However, this complexity brings about an increase in volume, which makes the smart lock sticker occupy more space and increases the difficulty of installation. The larger volume is not only not conducive to installation in limited space, but may also affect the overall appearance and ease of operation of the door. In addition, complex design also means a higher failure rate and maintenance cost, which brings additional burden to users. For example, the Chinese invention patent with authorization announcement number CN114562157B, publication date May 31, 2022, and patent name "A mounting structure for a mechanical lock drive device" has the above-mentioned situations.

[0005] Another common connection method is to connect the smart lock sticker to the mechanical lock core through a clamping device. However, a key prerequisite for this method is that the mechanical lock core must be partially exposed outside the door panel for effective clamping. Since the possibility of subsequent intelligent upgrades was not considered at the beginning of the design of traditional mechanical door locks, in most cases the lock core is completely embedded in the door, and there is no space reserved for clamping. This greatly limits the scope of application of the clamping connection, making it unsuitable for a large number of existing mechanical door lock systems. Even if the clamping connection can be achieved in some special cases, the clamping force is difficult to accurately control, and the clamping may not be firm, which will affect the safety and stability of the smart lock sticker. If the clamping is too loose, the smart lock sticker may fall off during use; if the clamping is too tight, it may cause damage to the lock core or door body.

[0006] Therefore, how to overcome the above-mentioned defects and provide a connection structure of a smart lock sticker that is stable and easy to install has become an important issue that needs to be solved urgently by those skilled in the art. Summary of the invention

[0007] The present invention overcomes the deficiencies of the above-mentioned technologies and provides a connection structure of a smart lock sticker.

[0008] To achieve the above object, the present invention adopts the following technical solutions:

[0009] A connection structure of a smart lock sticker comprises a mechanical lock and a smart lock sticker connected to the mechanical lock, the mechanical lock comprising a lock shell portion and a lock core portion, the lock core portion being installed in the lock core portion, and the smart lock sticker being used to drive the lock core to rotate so as to lock / unlock the mechanical lock, a keyhole being provided at one end of the lock core, and a connecting hole being provided at the other end of the lock core for easy connection with the smart lock sticker, the smart lock sticker comprising a connecting head, a first protrusion being provided on the outer wall surface of the connecting head, a first groove being correspondingly provided on the side wall of the lock shell portion for the first protrusion to be embedded therein, the first protrusion and the first groove being connected by a fixing mechanism so that the mechanical lock is connected and fixed to the smart lock sticker, and a connecting shaft having two ends passing through the connecting head being rotatably connected to the middle portion of the connecting head, one end of the connecting shaft being limit-connected to the connecting hole to drive the lock core to rotate synchronously, and the other end being connected to the inside of the smart lock sticker.

[0010] Furthermore, the fixing mechanism includes a first screw hole opened on the connecting head, a second screw hole opened in the first groove, and a bolt installed in the first screw hole and the second screw hole. The bolt passes through the first screw hole and is threadedly connected to the second screw hole. The bolt head sinks into the first screw hole and is lower than the inner wall surface of the connecting head.

[0011] Furthermore, a lock shell extension and a lock core extension are also provided between the mechanical lock and the connecting head. The lock shell extension is used to extend the lock shell part and its structure matches the lock shell part, and the lock core extension is used to extend the lock core part and its structure matches the connecting hole. One side of the lock shell extension is provided with a second protrusion with the same structure as the first protrusion, and the other side is provided with a second groove with the same structure as the first groove. The second groove is provided with a third screw hole with the same structure as the second screw hole, the second protrusion is embedded in the first groove, and the first protrusion is embedded in the second groove. The lock shell extension includes a lock core mounting hole, and the lock core extension is installed in the lock core mounting hole. One side of the lock core extension is embedded in the connecting hole, and the other side is limitedly connected to the connecting shaft.

[0012] Furthermore, the smart lock sticker also includes a shell rotatably connected to the connecting head, the shell includes an upper cover and a sleeve detachably connected to the upper cover, the upper cover is provided with an installation cavity at one end facing the connecting head, the bottom of the installation cavity is concave to form an installation groove, the connecting head is embedded in the installation cavity, one end of the connecting shaft is fixedly installed in the installation groove, a third screw hole is opened on the side wall of the upper cover, a fourth screw hole is opened on the connecting shaft, and a second bolt is countersunk in the third screw hole and passes through the third screw hole and is threadedly connected to the fourth screw hole.

[0013] Furthermore, an annular inner ring and a first annular groove concavely formed on the outer periphery of the annular inner ring are formed on the side of the connector facing the upper cover, a second annular groove for the connector to be embedded is provided in the installation cavity, and a third annular groove formed on the outer periphery of the upper end of the installation groove is also provided in the installation cavity, and the annular inner ring is embedded in the third annular groove.

[0014] Furthermore, the smart lock sticker also includes a fixing seat detachably installed in the sleeve, the fixing seat is detachably connected to the upper cover, a positioning pin is provided at the upper end of the fixing seat, a positioning hole for inserting the positioning pin is correspondingly opened on the upper cover, a convex strip is provided on the side wall of the fixing seat, and a strip groove for the convex strip to be inserted is provided on the inner wall surface of the sleeve, a motor, a control circuit board, a battery and a gear transmission assembly are connected to the fixing seat, the motor and the battery are electrically connected to the control circuit board, the sleeve includes a detachable bottom plate, a button for driving the motor to work is provided on the outer side of the bottom plate, and the motor can be The driving gear transmission assembly is actuated to drive the connecting shaft to rotate so as to lock / unlock the mechanical lock. A plurality of inner gear teeth are circumferentially arranged on the side wall of the first annular groove, and the gear transmission assembly is meshed with the inner gear teeth. A motor gear that can rotate with the motor shaft is connected to the motor, and the motor gear passes through the fixing seat upward and meshes with the gear transmission assembly. A motor accommodating cavity for accommodating the motor is formed on the side wall of the fixing seat. A battery accommodating cavity for accommodating the battery is also formed on the side wall of the fixing seat. An avoidance groove for embedding the lower end of the mounting groove is also formed in the middle of the upper end of the fixing seat.

[0015] Furthermore, the gear transmission assembly includes a first gear meshed with the motor gear, a second gear coaxially connected above the first gear and rotating synchronously with the first gear, a third gear meshed with the second gear, a fourth gear coaxially connected above the third gear and rotating synchronously with the third gear, a swing arm coaxially arranged above the fourth gear and capable of rotating relative to the fourth gear, a clutch gear rotatably connected to the swing arm and meshed with the fourth gear, a fifth gear meshed with the clutch gear after the clutch gear rotates into place, and a sixth gear coaxially connected above the fifth gear and rotating synchronously with the fifth gear, wherein the sixth gear meshes with the inner gear teeth.

[0016] Furthermore, the swing arm includes an upwardly disposed connecting column, a first limiting hole is provided at the lower end of the upper cover, the connecting column is rotatably connected to the first limiting hole, the swing arm also includes a downwardly disposed first gear shaft, the clutch gear is rotatably sleeved on the first gear shaft, and two of the first gear shaft and the clutch gear are provided; when the motor is in forward rotation, one of the clutch gears can mesh with the fifth gear, and when the motor is in reverse rotation, the other clutch gear can mesh with the fifth gear; a through hole is provided on the upper cover for the sixth gear to pass through and rotate therein, and the sixth gear passes through After exiting the through hole, it meshes with the inner gear teeth, and the fixed seat is fixed circumferentially relative to the sleeve. The second gear shaft and the third gear shaft are also fixedly installed on the fixed seat. The first gear and the second gear are coaxially sleeved on the second gear shaft and can rotate synchronously. The third gear and the fourth gear are coaxially sleeved on the third gear shaft and can rotate synchronously. The fifth gear and the sixth gear are coaxially connected and fixed through the fourth gear shaft and rotate synchronously. A second limiting hole is opened at the upper end of the fixed seat, and the lower end of the fourth gear shaft is fixedly connected to the second limiting hole. When the fixed seat rotates relative to the connecting head, the sixth gear moves around the inner gear teeth.

[0017] Furthermore, a positive conductive part and a negative conductive part are provided on one side of the control circuit board facing the upper cover, and a conductive spring extending vertically upward is connected to the negative conductive part, and the conductive spring includes a connecting end, a spring end, and a vertical rod located between the connecting end and the spring end, and the connecting end is connected to the negative conductive part, the positive pole of the battery abuts the positive conductive part, and the negative pole of the battery abuts the spring end, and the battery is vertically arranged between the positive conductive part and the spring end, and a first positioning groove for supporting and fixing the vertical rod and a second positioning groove for supporting and fixing the spring end are provided on the inner wall surface of the battery accommodating cavity.

[0018] Furthermore, the positive conductive part and the negative conductive part are respectively provided with three, the batteries and the battery accommodating cavities are respectively provided with three, the connecting end is connected and fixed to the control circuit board by screws, the screws pass through the control circuit board upward and are threadedly connected to the bottom of the fixing seat, the side of the control circuit board facing the upper cover is also provided with a socket and a UBS interface, the side of the control circuit board facing the bottom plate is provided with buttons and lamp beads, and a number of the lamp beads are equidistantly arranged along the circumference of the control circuit board, the bottom plate is made of light-transmitting material, and the side of the control circuit board facing the bottom plate is also provided with a buzzer and a reset production setting button.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Existing smart lock stickers usually require an additional fixing plate to connect the mechanical lock core and the smart lock sticker, which not only increases the number of parts and costs, but also makes the installation process more complicated. The present invention eliminates the need for an additional mounting plate by directly utilizing the space inside the lock core. Specifically, a first protrusion is provided on the outer wall surface of the connecting head, which is engaged with the first groove on the lock shell and connected through a fixing mechanism, and then one end of the connecting shaft 12 is limitedly connected to the connecting hole to drive the lock core to rotate synchronously to unlock the smart lock sticker. This structure realizes an integrated design without the need for an additional mounting plate, significantly simplifies the installation steps, reduces the number of parts required, reduces the overall cost, and improves the adaptability and installation efficiency of the product.

[0021] 2. Secondly, the first protrusion is engaged with the first groove on the lock shell and connected through a fixing mechanism. A connecting hole is provided at the other end of the lock core. One end of the connecting shaft is limitedly connected to the connecting hole, thereby driving the lock core to rotate synchronously to realize the unlocking of the smart lock sticker. This design ensures that even if the lock core is completely embedded in the door, the installation of the smart lock sticker can be smoothly realized through the connecting shaft, which greatly expands the scope of application and is compatible with various types of mechanical lock cores, including those that are completely embedded in the door, realizing true plug-and-play.

[0022] 3. The first protrusion and the first groove in the present invention are connected by a fixing mechanism, so that the smart lock sticker is connected and fixed to the mechanical lock. This design provides a stable connection point to prevent the smart lock sticker from being displaced or falling off during use. It improves the stability and safety of the connection between the smart lock sticker and the mechanical lock, and ensures that the smart lock sticker can work stably under various conditions of use.

[0023] 4. This case can lengthen the mechanical lock by setting the lock shell extension part and the lock core extension part. Even if the mechanical lock is not exposed to the door body, it can be connected to the smart lock sticker of this case. At the same time, the design of this extension structure can be installed on doors of different thicknesses.

[0024] 5. The present invention sets the conductive positive electrode of the control circuit board at the same end and the conductive negative electrode at the same end by setting the conductive spring extending vertically upward. The method of installing the battery at the same end can reduce the occupation of the internal structure, eliminate the cumbersome wire connection, and reduce the overall volume of the smart lock sticker of this case. When installing the battery, the user can easily and intuitively distinguish the positive and negative electrodes of the control circuit board, which is convenient for the installation of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the mechanical lock in this case and one of the exploded diagrams of the smart lock sticker.

[0026] Figure 2 This is the structural diagram of the mechanical lock in this case and the second exploded diagram of the smart lock sticker.

[0027] Figure 3 This is a schematic diagram of the connection status of the mechanical lock and smart lock sticker in this case.

[0028] Figure 4 It is one of the structural schematic diagrams of the mechanical lock, connecting plate, lock shell extension part and lock core extension part of this case.

[0029] Figure 5 This is the second structural schematic diagram of the mechanical lock, connecting plate, lock shell extension and lock core extension in this case.

[0030] Figure 6 It is one of the structural schematic diagrams of the upper cover of this case.

[0031] Figure 7 This is the second structural diagram of the upper cover of this case.

[0032] Figure 8 It is a structural schematic diagram of the fixing base, motor, control circuit board, battery and gear transmission components in the assembled state.

[0033] Fig. 9 It is one of the structural schematic diagrams of the fixing seat in this case.

[0034] Fig.10 This is the second structural diagram of the fixing seat in this case.

[0035] Fig.11 It is a structural schematic diagram of the motor and gear transmission mechanism of this case.

[0036] Fig.12 It is a schematic diagram of the structure of the control circuit board and battery in the assembled state in this case.

[0037] Fig.13 This case Fig.12 Schematic diagram of the disassembled components.

[0038] Fig.14It is a structural diagram of the control circuit board of this case. DETAILED DESCRIPTION

[0039] The features of the present invention and other related features are further described in detail below through embodiments to facilitate understanding by those skilled in the art:

[0040] like Figures 1 to 14As shown, the present case provides a connection structure of a smart lock sticker, including a mechanical lock 100 and a smart lock sticker 200 connected to the mechanical lock 100. The mechanical lock 100 includes a lock shell 101 and a lock core 102, and a lock core 103 is installed in the lock core 102. A keyhole 1031 is provided at one end of the lock core 103 to retain the basic unlocking function of the mechanical lock. The smart lock sticker 200 is used to drive the lock core 103 to rotate so as to lock / unlock the mechanical lock 100. A connecting hole 1032 is provided at the other end of the lock core 103 for easy connection with the smart lock sticker 200. The smart lock sticker 200 includes a connector 1, and a first protrusion 11 is provided on the outer wall surface of the connector 1, and a first groove 1011 is correspondingly provided on the side wall of the lock shell 101 for the first protrusion 11 to be embedded therein. In specific implementation, the shape of the first groove 1011 matches that of the first protrusion 11, that is, the first protrusion 11 can be completely embedded in the first groove 1011. Through the interlocking design of the two, a stable connection point is provided, which effectively ensures the stability of the connection between the smart lock sticker 200 and the mechanical lock 100, and facilitates the positioning connection between the two. Secondly, compared with the prior art, the design of this structure eliminates the process of installing the fixing plate, and the installation is simple and convenient. The first protrusion 11 and the first groove 1011 are connected by a fixing mechanism so that the mechanical lock 100 is connected and fixed to the smart lock sticker 200, and the reliability and safety of the connection between the mechanical lock 100 and the smart lock sticker 2000 are ensured by the fixing mechanism. The middle part of the connector 1 is rotatably connected with a connecting shaft 12 with both ends passing through the connector 1. One end of the connecting shaft 12 is limitedly connected to the connecting hole 1032 to drive the lock gall 103 to rotate synchronously, and the other end is connected to the inside of the smart lock sticker 200. In specific implementation, the shape of the connecting hole 1032 of the lock core 103 matches the connecting shaft 12. Through the limited connection between the two, the smart lock sticker 200 drives the lock core 103, thereby realizing the intelligence of the mechanical lock 100. This connection method of directly inserting the connecting shaft 12 into the connecting hole 1032 of the lock core 103 eliminates unnecessary installation components and is easy to install. In specific implementation, the smart lock sticker 200 has a circular cylindrical structure as a whole. In this case, the first protrusion 11 is embedded in the first groove 1011 and the connecting shaft 12 is directly inserted into the connecting hole 1032 of the lock core 103. The overall effective coordination of the structural design eliminates the tedious process of installing the fixing plate and reduces the installation components. Most importantly, it can be effectively installed even when the mechanical lock 100 is not exposed to the door body or is used to deal with door bodies of different thicknesses. At the same time, it simplifies the installation process, saves parts, and saves production costs.

[0041] Specifically, Figure 1-Figure 5As shown, the fixing mechanism includes a first screw hole 13 provided on the connector 1, a second screw hole 10111 provided in the first groove 1011, and a bolt 131 installed in the first screw hole 13 and the second screw hole 10111. The bolt 131 passes through the first screw hole 13 and is threadedly connected to the second screw hole 10111. Through the above-mentioned connection method of the bolt 131, the stability of the connection between the mechanical lock 100 and the smart lock sticker 200 is ensured, and the smart lock sticker 200 can be effectively prevented from loosening or falling off during use, thereby improving safety. In addition, this connection method is convenient for disassembly and assembly, and has low cost. The head of the bolt 131 sinks into the first screw hole 13 and is lower than the inner wall surface of the connector 1. The design of the head of the bolt 131 sinking into the first screw hole 13 can effectively avoid its influence on other components at the lower end of the connector 1, and avoid affecting the connection between the connector 1 and other components of the smart lock sticker 200.

[0042] Further, continue as Figure 1-Figure 5 In this embodiment, a lock shell extension part 300 and a lock core extension part 400 are further provided between the mechanical lock 100 and the connector 1. The lock shell extension part 300 is used to extend the lock shell part 101 and its structure matches the lock shell part 101. The lock core extension part 400 is used to extend the lock core part 102 and its structure matches the connecting hole 1032. One side of the lock shell extension part 300 is provided with a second protrusion 301 having the same structure as the first protrusion 11, and the other side is provided with a second protrusion 301 having the same structure as the first groove 1011. The second groove 302 is provided with a third screw hole 3021 having the same structure as the second screw hole 10111, the second protrusion 301 is embedded in the first groove 1011, the first protrusion 11 is embedded in the second groove 302, the lock shell extension 300 includes a lock gallbladder mounting hole 303, the lock gallbladder extension 400 is installed in the lock gallbladder mounting hole 303, one side of the lock gallbladder extension 400 is embedded in the connecting hole 1032, and the other side is limitedly connected to the connecting shaft 12. It should be noted that the lock gallbladder extension 400 is used to extend the lock gallbladder part 102 and the structure matches the connecting hole 1032, that is, the shape, size and internal structure of the two are the same, and it can be understood that the lock gallbladder extension 400 is a component directly cut from the cross-sectional direction of the connecting hole 1032 side of the lock gallbladder part 102; the same is true for the lock shell extension 300. By introducing the lock shell extension part 300 and the lock core extension part 400, the present invention can adapt to door panels of different thicknesses, greatly expanding the scope of application. Users can choose appropriate extension parts according to actual needs, realizing true plug-and-play, greatly facilitating installation and use.

[0043] like Figure 1-Figure 7As shown, further, the smart lock sticker 200 also includes a shell 2 rotatably connected to the connector 1, and the shell 2 includes an upper cover 21 and a sleeve 22 detachably connected to the upper cover 21. The detachable design of the shell 2 facilitates the maintenance and upgrading of the inside of the smart lock sticker. An installation cavity 211 is provided at one end of the upper cover 21 facing the connector 1, and a mounting groove 212 is formed in the bottom of the installation cavity 211. The installation cavity 211 is used to accommodate the connector 1 to ensure that it is firmly embedded. The connector 1 is embedded in the installation cavity 211, and one end of the connecting shaft 12 is fixedly installed in the installation groove 212. The installation groove 212 is used to fix one end of the connecting shaft 12, provide a connection position for the connecting shaft 12, and ensure its accurate alignment. Through the design of the installation cavity 211 and the installation groove 212, the assembly error is reduced and the convenience of assembly is improved. A third screw hole 213 is formed on the side wall of the upper cover 21, a fourth screw hole 121 is formed on the connecting shaft 12, and a second bolt 2131 is sunk in the third screw hole 213 and passes through the third screw hole 213 and is threadedly connected to the fourth screw hole 121. The connecting shaft 12 and the upper cover 21 are relatively fixed by the second bolt 2131 to achieve synchronous rotation of the two. The user can drive the connecting shaft 12 to rotate by rotating the housing 2 to lock / unlock the mechanical lock 100. This design realizes the knob function of the smart lock sticker 200.

[0044] Continue as Figure 1-Figure 7 As shown, the connector 1 is formed with an annular inner ring 14 and a first annular groove 15 formed on the outer periphery of the annular inner ring 14 on the side facing the upper cover 21, a second annular groove 214 is provided in the installation cavity 211 for the connector 1 to be embedded, and a third annular groove 215 is also provided in the installation cavity 211 formed on the outer periphery of the upper end of the installation groove 212, and the annular inner ring 14 is embedded in the third annular groove 215. Through the above-mentioned structural design, the connector 1 and the upper cover 21 are stably matched, the positioning connection of the connector 1 and the upper cover 21 is convenient, and the stability and accuracy of the rotation of the upper cover 21 relative to the connector 1 are effectively ensured.

[0045] Furthermore, if Figure 1-Figure 14As shown, the smart lock sticker 200 of this case also includes a fixing seat 3 that can be detachably installed in the sleeve 22, and the fixing seat 3 is detachably connected to the upper cover 21, so that the user can open the upper cover 21 to inspect the fixing seat 3 and the inside of the sleeve 22. In specific implementation, the fixing seat 3 and the upper cover 21 are detachably connected by using a screw thread connection method. This connection method has a simple structure and is easy to operate. A positioning pin 31 is provided at the upper end of the fixing seat 3, and a positioning hole 216 for inserting the positioning pin 31 is correspondingly provided on the upper cover 21. The cooperation of the positioning pin 31 and the positioning hole 216 facilitates the rapid and accurate positioning and installation of the fixing seat 3 and the upper cover 21, and can effectively improve the stability of the connection between the two. A convex strip 32 is provided on the side wall of the fixing seat 3, and a strip groove 221 for the convex strip 32 to be inserted is provided on the inner wall surface of the sleeve 22. The convex strips 32 and the strip grooves 221 can be arranged in two, three, or four circumferential directions. The limiting cooperation of the convex strips 32 and the strip grooves 221 facilitates the sliding disassembly and assembly of the fixing seat 3 and the sleeve 22; at the same time, it is used to limit the circumferential direction of the fixing seat 3 and the sleeve 22, that is, to enable the two to rotate together. In specific implementation, the sleeve 22 and the fixing seat 3 are also fixed by bolts.

[0046] Continue to refer to Figure 1-Figure 14, a motor 4, a control circuit board 5, a battery 6 and a gear transmission assembly 7 are connected to the fixing seat 3, and the motor 4 and the battery 6 are electrically connected to the control circuit board 5. The fixing seat 3 is used to provide a mounting platform to ensure the stable installation of related components. The sleeve 22 includes a detachable bottom plate 222. The design of this detachable bottom plate 222 is convenient for the maintenance of the internal components of the sleeve 22, and it is convenient for users to replace the battery 6. A button 2221 for driving the motor 4 to work is provided on the outside of the bottom plate 222 to realize the button unlocking method of the smart lock sticker 200. In specific implementation, the control circuit board 5 can realize the control of the smart lock sticker 200 using a mobile phone app, mobile phone NFC, and Bluetooth, providing a variety of intelligent control means to improve the user's convenience. The motor 4 can drive the gear transmission assembly 7 to move, thereby driving the connecting shaft 12 to rotate to lock / unlock the mechanical lock 100. A plurality of inner gear teeth 151 are arranged circumferentially on the side wall of the first annular groove 15, and the gear transmission assembly 7 is meshed with the inner gear teeth 151. The motor 4 is connected with a motor gear 42 that can rotate with the motor shaft 41, and the motor gear 42 passes through the fixing seat 3 upward and meshes with the gear transmission assembly 7. The motor 4 transmits power to the connecting shaft 12 through the gear transmission assembly 7 to realize the locking / unlocking operation of the mechanical lock 100. The gear transmission assembly 7 realizes accurate power transmission, ensuring the reliability and response speed of the system. The meshing of the gear transmission assembly 7 with the inner gear teeth 151 ensures the accuracy, stability and reliability of power transmission when the motor 4 is used to unlock, and finally the power output by the motor 4 is transmitted from the gear transmission assembly 7. A motor accommodating chamber 33 for accommodating the motor 4 is provided in a concave shape on the side wall of the fixing seat 3, and a battery accommodating chamber 34 for accommodating the battery 6 is also provided in a concave shape on the side wall of the fixing seat 3. The structural design of the motor accommodating cavity 33 and the battery accommodating cavity 34 makes reasonable use of the structure of the fixing base 3, which is conducive to reducing the occupation of the internal space of the sleeve 22, thereby reducing the overall volume of the smart lock sticker 200, and can be applied to more installation environments, while facilitating installation, transportation and storage. At the same time, the motor accommodating cavity 33 can make the motor 4 firmly installed on the fixing base 3, and the battery accommodating cavity 34 can make the battery 6 firmly installed on the fixing base 3, thereby improving the stability of the overall structural connection. A avoidance groove 35 is also provided in the middle of the upper end of the fixing base 3 for the lower end of the installation groove 212 to be embedded, so as to further reduce the installation space by rationally utilizing the space design and reduce the overall volume of the smart lock sticker 200.

[0047] Reference Figure 1-Figure 5 , Figure 8 , Fig.11As shown, the gear transmission assembly 7 includes a first gear 71 meshed with the motor gear 42, a second gear 72 coaxially connected to the top of the first gear 71 and rotating synchronously with the first gear 71, a third gear 73 meshed with the second gear 72, a fourth gear 74 coaxially connected to the top of the third gear 73 and rotating synchronously with the third gear 73, a swing arm 75 coaxially arranged above the fourth gear 74 and capable of rotating relative to the fourth gear 74, a clutch gear 76 rotatably connected to the swing arm 75 and meshed with the fourth gear 74, a fifth gear 77 meshed with the clutch gear 76 after the clutch gear 76 rotates into place, and a sixth gear 78 coaxially connected to the top of the fifth gear 77 and rotating synchronously with the fifth gear 77, and the sixth gear 78 meshes with the inner gear teeth 151. By rotating the swing arm 75, the action of the clutch gear 76 can be flexibly controlled, so that the motor 4 unlocking and the knob unlocking can be switched by the clutch gear 76 and the fifth gear 77. Even when the motor 4 is damaged or the battery 6 is out of power, the user can unlock the door by the knob unlocking method. At the same time, this structure can also effectively protect the motor 4. Specifically, when the motor 4 fails in the state where the clutch gear 76 is separated from the fifth gear 77 or the battery 6 is out of power and cannot unlock, the user can unlock the door by rotating the housing 2; when the motor 4 fails in the state where the clutch gear 76 is meshed with the fifth gear 77 or the battery 6 is out of power and cannot unlock, this situation is generally when the motor 4 is damaged or the battery 6 is out of power when the unlocking action of the motor 4 is halfway through, the user can still unlock the door by rotating the housing 2, specifically, by rotating the housing 2, the reverse drive gear transmission mechanism 7 is actuated. Preferably, the first gear 71 and the second gear 72 are double gears of integral design, and the third gear 73 and the fourth gear 74 are double gears of integral design. In order to facilitate a clearer description and understanding, they are named separately. The multi-stage gear meshing transmission design of the gear transmission assembly 7 is conducive to smoother and more accurate unlocking.

[0048] It should be noted that the inner gear teeth 151 are arranged on the side wall of the first annular groove 15 of the connector 1, and a plurality of inner gear teeth 151 are arranged in a circumferential distribution around the lamp, and are always kept in mesh with the sixth gear 78. The arrangement of the inner gear teeth 151 provides a stable support for the sixth gear 78, ensuring that it will not deviate or shake during the rotation process, and at the same time determines and guides the motion trajectory of the sixth gear 78, ensuring that it rotates smoothly along the predetermined path, ensuring the accuracy and stability of power transmission, and avoiding power loss or failure caused by gear deviation. The inner gear teeth 151 and the sixth gear 78 form a closed transmission chain through precise meshing, which can effectively ensure that the power transmitted by the motor 4 through the gear transmission assembly 7 can accurately reach the connecting shaft 12, and finally realize the locking / unlocking operation of the mechanical lock 100. Through this tight meshing structural design, the energy loss in the power transmission process is reduced, the efficiency of the system is improved, and it is ensured that each unlocking / locking action can be accurately executed, avoiding failures caused by transmission errors; through precise gear meshing, vibration and noise are reduced, making the unlocking action smoother, and through reasonable space layout, the overall volume is reduced, making the smart lock sticker 200 lighter and more compact.

[0049] Continue to refer to Figure 1-Figure 5 , Figure 8 , Fig.11 As shown, further, the swing arm 75 includes a connecting column 751 arranged upward, and a first limiting hole 217 is provided at the lower end of the upper cover 21, and the connecting column 751 is rotatably connected in the first limiting hole 217. By rotating the connecting column 751 in the first limiting hole 217, it is ensured that the swing arm 75 can rotate relatively, and at the same time, the swing arm 75 is limited to avoid displacement and affecting the entire gear transmission mechanism 7. The swing arm 75 also includes a first gear shaft 752 arranged downward, and the clutch gear 76 is rotatably sleeved on the first gear shaft 752. The first gear shaft 752 provides a stable rotation fulcrum and limiting support for the clutch gear 76, effectively preventing the clutch gear 76 from being out of meshing with the fourth gear 75. In this case, two first gear shafts 752 and two clutch gears 76 are provided. When the motor 4 is in the forward rotation position, one of the clutch gears 76 can mesh with the fifth gear 77, and when the motor 4 is in the reverse rotation position, the other clutch gear 76 can mesh with the fifth gear 77. When locking / unlocking is achieved by forward and reverse rotation of the motor 4, different clutch gears 76 are used respectively, which effectively improves the stability and service life of the clutch gear 76 and the entire gear transmission mechanism 7, reduces the unlocking stroke of the motor 4, and achieves a faster response. As mentioned above, by providing two clutch gears 76, it is possible to effectively save power, reduce losses, share the wear on the clutch gear 76, and improve the stability and service life of the entire gear transmission mechanism 7.

[0050] It should be noted that the dual clutch gear 76 makes the system more stable, reduces the overall failure probability caused by the failure of a single component, and even if one of the clutch gears 76 has a problem, the other can still work normally, and the entire gear transmission mechanism 7 can still operate normally, thereby enhancing the fault tolerance of the system. The two clutch gears 76 handle the forward and reverse rotation of the motor 4 respectively, which simplifies the logical design of the control system. The control system only needs to select the corresponding clutch gear 76 according to the rotation direction of the motor 4, without the need for complex intermediate state switching, thereby reducing the complexity of the control system, improving the control accuracy, and avoiding erroneous operations caused by intermediate state switching.

[0051] Continue to refer to Figure 1-Figure 5 , Figure 8 , Fig.11 As shown, a through hole 218 is provided on the upper cover 21 for the sixth gear 78 to pass through and rotate therein, and the sixth gear 78 is meshed with the inner gear 151 after passing through the through hole 218. The design of the through hole 218 provides installation and movement space for the sixth gear 78, so that it can smoothly mesh with the inner gear 151 to complete the final power transmission. This design ensures the reasonable layout between the various components, reduces unnecessary space waste, and makes the installation process simpler and faster. The fixing seat 3 is fixed circumferentially relative to the sleeve 22 to rotate synchronously with the sleeve 22 to achieve locking / unlocking in a knob manner. The second gear shaft 711 and the third gear shaft 731 are also fixedly installed on the fixing seat 3, and the first gear 71 and the second gear 72 are coaxially sleeved on the second gear shaft 711 and can rotate synchronously. The third gear 73 and the fourth gear 74 are coaxially sleeved on the third gear shaft 731 and can rotate synchronously. The second gear shaft 711 and the third gear shaft 731 fixedly mounted on the fixing seat 3 provide stable rotation axes for the first gear 71, the second gear 72, the third gear 73 and the fourth gear 74 respectively, and play a supporting role at the same time, ensuring the synchronous rotation between these gears and improving the efficiency of power transmission. The fifth gear 77 and the sixth gear 78 are coaxially connected and fixed by the fourth gear shaft 771 and rotate synchronously. The upper end of the fixing seat 3 is provided with a second limiting hole 36, and the lower end of the fourth gear shaft 771 is fixedly connected to the second limiting hole 36. When the fixing seat 3 rotates relative to the connector 1, the sixth gear 78 moves around the inner gear teeth 151. The design of the second limiting hole 36 provides an installation space for the fourth gear shaft 771. Since the fourth gear shaft 771 is fixedly connected to the fixing seat 3, when the user rotates the housing 2, the fixing seat 3 is driven to rotate synchronously, so that the sixth gear 78 moves around the inner gear teeth 151 to achieve smooth and accurate knob-type locking / unlocking.

[0052] like Figure 1-Figure 5 , Figure 8 , Figure 12-14As shown, further, a positive conductive part 51 and a negative conductive part 52 are provided on one side of the control circuit board 5 facing the upper cover 21. The positive conductive part 51 and the negative conductive part 52 are respectively used to connect the positive and negative electrodes of the battery 3 to realize the electrical connection between the battery 3 and the control circuit board 5. A conductive spring 53 extending vertically upward is connected to the negative conductive part 52, and the conductive spring 53 includes a connecting end 531, a spring end 532, and a vertical rod 533 located between the connecting end 531 and the spring end 532. The spring end 532 provides elastic contact pressure to ensure that the negative electrode of the battery 6 always maintains good contact with the negative conductive part 52. The connecting end 531 is connected to the negative conductive part 52, the positive electrode of the battery 6 abuts on the positive conductive part 51, and the negative electrode of the battery 6 abuts on the spring end 532. The battery 6 is vertically arranged between the positive conductive part 51 and the spring end 532. The inner wall surface of the battery accommodating chamber 34 is provided with a first positioning groove 341 for supporting and fixing the vertical rod 533 and a second positioning groove 342 for supporting and fixing the spring end 532. The first positioning groove 341 and the second positioning groove 342 are arranged in cooperation to ensure that the conductive spring 53 is stably installed on the fixing seat 3, thereby ensuring the stability of the electrical connection system. Through reasonable layout and compact design, the battery 6 and other components can be reasonably arranged, thereby reducing unnecessary space waste. The first positioning groove 341 and the second positioning groove 342 are arranged on the inner wall surface of the battery accommodating chamber 34, thereby ensuring that each part of the conductive spring 53 can be firmly fixed in place, thereby optimizing the internal space utilization. By arranging the positive conductive part 51 and the negative conductive part 52 at the same end, the battery 6 can be placed vertically on one side of the control circuit board 5. This same-end design makes the spatial arrangement between the battery and other components more compact, thereby reducing unnecessary gaps. Traditional battery installation methods often require the use of multiple wires to connect the positive and negative poles of the battery to the control circuit board, thereby increasing the difficulty of assembly and the risk of failure. The same-end design directly realizes electrical connection through the conductive spring 53, without the need for additional wires, and simplifies the electrical connection process. The user only needs to insert the battery 6 vertically to complete the installation. The user can easily and intuitively distinguish the positive and negative directions required for the installation of the battery 6, which greatly facilitates the user's daily use and maintenance. Especially when multiple batteries 6 need to be installed, after installing one battery 6, the other batteries 6 can be quickly installed accordingly without confirming the positive and negative directions again. This same-end design makes installation faster.

[0053] Continue to refer to Figure 1-Figure 5 , Figure 8 , Figure 12-14As shown, further, in order to install more batteries 6 and provide more sufficient power to increase the battery life of the smart lock 200, in this embodiment, three positive conductive parts 51 and negative conductive parts 52 are respectively provided, and correspondingly, three batteries 6 and battery accommodating chambers 34 are respectively provided. The connecting end 531 is connected and fixed to the control circuit board 5 by screws 54 to prevent the conductive spring 53 from loosening and ensure that the conductive spring 53 is stably and firmly fixed on the control circuit board 5. The screw 54 passes through the control circuit board 5 upward and is threadedly connected to the bottom of the fixing seat 3 to ensure that the control circuit board 5 is stably connected to the fixing seat 3 and the stability of the entire electrical system. The control circuit board 5 is also provided with a socket 55 and a UBS interface 56 on the side facing the upper cover 21. The socket 55 and the UBS interface 56 provide a variety of power supply transmission interfaces and data transmission interfaces, which are convenient for debugging the smart lock 200 and charging the battery 6. A button 57 and a lamp bead 58 are provided on one side of the control circuit board 5 facing the bottom plate 222. Several lamp beads 58 are arranged equidistantly along the circumference of the control circuit board 5, and the bottom plate 222 is made of a light-transmitting material. The button 57 is used to realize the control of the smart lock sticker 200 by pressing. The lamp bead 58 cooperates with the design of the light-transmitting bottom plate 222 to provide the smart lock sticker 200 with an indication of the working status and lighting function, which is more convenient for the user's operation. A buzzer 59 and a reset button 591 are also provided on one side of the control circuit board 5 facing the bottom plate 222. In specific implementation, the buzzer 59 is used to issue a sound prompt to remind the user of the current working status or abnormal situation, which can help the user to understand the status of the smart lock sticker in time and avoid misoperation. The factory reset button 591 is used to reset the settings of the smart lock sticker 200, which is convenient for the user to quickly reset the smart lock sticker 200 when needed, simplifying the maintenance process.

[0054] As described above, in this case, the connector 1 and the housing 2 can rotate relative to each other, the connecting shaft 12 is rotatably connected to the connector 1 and one end is fixedly connected to the upper cover 21, and the upper cover 21, the sleeve 22 and the fixing seat 3 in the housing 2 are all circumferentially fixed, that is, when the smart lock sticker 200 rotates to work, the entire housing 2 and its internal components rotate relative to the connector 1. Under this premise, the working principles of the manual rotation unlocking method and the electric unlocking method in this case are described respectively.

[0055] Manual rotation unlocking method:

[0056] 1. The first case: the user manually rotates the entire housing 2 (including the upper cover 21 and the sleeve 22) to apply a certain torque. Since the upper cover 21, the sleeve 22 and the fixing seat 3 in the housing 2 are all circumferentially fixed, the action of rotating the housing 2 will be transmitted to the sixth gear 78 through the upper cover 21. The sixth gear 78 is meshed with the inner gear 151. Under normal conditions, the clutch gear 76 and the fifth gear 77 are in a separated state. As the housing 2 rotates, the sixth gear 78 drives the connecting shaft 12 to rotate, thereby realizing the locking / unlocking action of the mechanical lock 100.

[0057] 2. The second situation: Even if the motor 4 has been started but the unlocking action has not been completed, or the motor 4 is damaged during the unlocking process or the battery 6 is out of power, the user can still reversely drive the gear transmission assembly 7 by rotating the housing 2. The user's rotational force on the housing 2 is transmitted to other gears (such as the fifth gear 77) in the gear transmission assembly 7 through the sixth gear 78, and the power continues to be transmitted through the meshing of the clutch gear 76 until it is transmitted to the motor 4. At the same time, the sixth gear 78 always remains in meshing with the inner gear 151, and continues to rotate with the rotation of the housing 2, and the sixth gear 78 drives the connecting shaft 12 to rotate, thereby realizing the locking / unlocking action of the mechanical lock 100.

[0058] Electric unlocking method:

[0059] The user sends an unlocking command through the button 2221 on the bottom plate 222 or an intelligent control method (such as a mobile phone APP, NFC, Bluetooth, etc.). After receiving the command, the control circuit board 5 starts the motor 4 to rotate forward or reverse to the desired position. When the motor 4 rotates forward to the desired position, one of the clutch gears 76 meshes with the fifth gear 77; when the motor 4 reverses to the desired position, the other clutch gear 76 meshes with the fifth gear 77. The clutch gear 76 drives the other gears (the first gear 71 to the sixth gear 78) in the gear transmission assembly 7 to rotate. The sixth gear 78 meshes with the inner gear teeth 151, driving the connecting shaft 12 to rotate, so that the mechanical lock 100 completes the unlocking or locking action.

[0060] As mentioned above, this case protects a connection structure of a smart lock sticker, and all technical solutions that are the same or similar to this case should be deemed to fall within the protection scope of this case.

Claims

1. A connection structure of a smart lock sticker, comprising a mechanical lock (100) and a smart lock sticker (200) connected to the mechanical lock (100), wherein the mechanical lock (100) comprises a lock shell portion (101) and a lock core portion (102), wherein a lock core (103) is installed in the lock core portion (102), and the smart lock sticker (200) is used to drive the lock core (103) to rotate so as to lock / unlock the mechanical lock (100), and a keyhole (1031) is provided at one end of the lock core (103), wherein: The other end of the lock core (103) is provided with a connecting hole (1032) for facilitating connection with the smart lock sticker (200), and the smart lock sticker (200) comprises a connecting head (1), and a first protrusion (11) is provided on the outer wall surface of the connecting head (1), and a first groove (1011) for the first protrusion (11) to be embedded therein is correspondingly opened on the side wall of the lock shell (101), and the first protrusion (11) and the first groove (1011) are connected by a fixing mechanism so that the mechanical lock (100) and the smart lock sticker (200) are connected and fixed, and a connecting shaft (12) with two ends passing through the connecting head (1) is rotatably connected in the middle part of the connecting head (1), and one end of the connecting shaft (12) is limitedly connected to the connecting hole (1032) so as to drive the lock core (103) to rotate synchronously, and the other end is connected to the inside of the smart lock sticker (200).

2. The connection structure of a smart lock sticker according to claim 1, characterized in that: The fixing mechanism comprises a first screw hole (13) formed on the connecting head (1), a second screw hole (10111) formed in the first groove (1011), and a bolt (131) installed in the first screw hole (13) and the second screw hole (10111); the bolt (131) passes through the first screw hole (13) and is threadedly connected to the second screw hole (10111); the head of the bolt (131) is sunk into the first screw hole (13) and is lower than the inner wall surface of the connecting head (1).

3. The connection structure of a smart lock according to claim 2, characterized in that: A lock shell extension portion (300) and a lock core extension portion (400) are also provided between the mechanical lock (100) and the connector (1); the lock shell extension portion (300) is used to extend the lock shell portion (101) and has a structure matching that of the lock shell portion (101); the lock core extension portion (400) is used to extend the lock core portion (102) and has a structure matching that of the connecting hole (1032); one side of the lock shell extension portion (300) is provided with a second protruding portion (301) having the same structure as the first protruding portion (11); and the other side is provided with a second groove (301) having the same structure as the first groove (1011). 02), the second groove (302) is provided with a third screw hole (3021) having the same structure as the second screw hole (10111), the second protrusion (301) is embedded in the first groove (1011), the first protrusion (11) is embedded in the second groove (302), the lock shell extension (300) includes a lock core mounting hole (303), the lock core extension (400) is installed in the lock core mounting hole (303), one side of the lock core extension (400) is embedded in the connecting hole (1032), and the other side is limit-connected to the connecting shaft (12).

4. A connection structure of a smart lock according to any one of claims 1 to 3, characterized in that: The smart lock sticker (200) further comprises a housing (2) rotatably connected to the connecting head (1), the housing (2) comprising an upper cover (21) and a sleeve (22) detachably connected to the upper cover (21), the upper cover (21) being provided with a mounting cavity (211) at one end facing the connecting head (1), the bottom of the mounting cavity (211) being concave to form a mounting groove (212), the connecting head (1) being embedded in the mounting cavity (211), one end of the connecting shaft (12) being fixedly mounted in the mounting groove (212), a third screw hole (213) being provided on a side wall of the upper cover (21), a fourth screw hole (121) being provided on the connecting shaft (12), a second bolt (2131) being inserted through the third screw hole (213) and being threadedly connected to the fourth screw hole (121), being countersunk in the third screw hole (213).

5. The connection structure of a smart lock according to claim 4, characterized in that: An annular inner ring (14) and a first annular groove (15) formed inwardly on the outer periphery of the annular inner ring (14) are formed on the side of the connector (1) facing the upper cover (21); a second annular groove (214) for the connector (1) to be embedded is provided in the installation cavity (211); a third annular groove (215) formed on the outer periphery of the upper end of the installation groove (212) is also provided in the installation cavity (211); the annular inner ring (14) is embedded in the third annular groove (215).

6. The connection structure of a smart lock sticker according to claim 5, characterized in that: The smart lock sticker (200) further comprises a fixing seat (3) detachably mounted in the sleeve (22), the fixing seat (3) being detachably connected to the upper cover (21), a positioning pin (31) being provided at the upper end of the fixing seat (3), a positioning hole (216) for inserting the positioning pin (31) being correspondingly provided on the upper cover (21), a convex strip (32) being provided on the side wall of the fixing seat (3), a strip groove (221) for the convex strip (32) to be inserted into the inner wall surface of the sleeve (22), a motor (4), a control circuit board (5), a battery (6) and a gear transmission assembly (7) being connected to the fixing seat (3), the motor (4) and the battery (6) being electrically connected to the control circuit board (5), the sleeve (22) comprising a detachable bottom plate (222), a button (222) for driving the motor (4) to work being provided on the outer side of the bottom plate (222) 1), the motor (4) can drive the gear transmission assembly (7) to move, thereby driving the connecting shaft (12) to rotate so as to lock / unlock the mechanical lock (100), a plurality of inner gear teeth (151) are circumferentially arranged on the side wall of the first annular groove (15), the gear transmission assembly (7) is meshed with the inner gear teeth (151), the motor (4) is connected with a motor gear (42) that can rotate with the motor shaft (41), the motor gear (42) passes through the fixing seat (3) upward and meshes with the gear transmission assembly (7), the side wall of the fixing seat (3) is concavely provided with a motor accommodating cavity (33) for accommodating the motor (4), the side wall of the fixing seat (3) is also concavely provided with a battery accommodating cavity (34) for accommodating a battery (6), and the middle part of the upper end of the fixing seat (3) is also provided with an avoidance groove (35) for the lower end of the mounting groove (212) to be embedded.

7. The connection structure of a smart lock according to claim 6, characterized in that: The gear transmission assembly (7) comprises a first gear (71) meshed with the motor gear (42), a second gear (72) coaxially connected to the first gear (71) and rotating synchronously with the first gear (71), a third gear (73) meshed with the second gear (72), a fourth gear (74) coaxially connected to the third gear (73) and rotating synchronously with the third gear (73), a swing arm (75) coaxially arranged above the fourth gear (74) and capable of rotating relative to the fourth gear (74), a clutch gear (76) rotatably connected to the swing arm (75) and meshed with the fourth gear (74), a fifth gear (77) meshed with the clutch gear (76) after the clutch gear (76) rotates to a certain position, and a sixth gear (78) coaxially connected to the fifth gear (77) and rotating synchronously with the fifth gear (77), wherein the sixth gear (78) meshes with the inner gear teeth (151).

8. The connection structure of a smart lock sticker according to claim 7, characterized in that: The swing arm (75) includes a connecting column (751) arranged upwards, a first limiting hole (217) is provided at the lower end of the upper cover (21), and the connecting column (751) is rotatably connected to the first limiting hole (217). The swing arm (75) also includes a first gear shaft (752) arranged downwards, and the clutch gear (76) is rotatably sleeved on the first gear shaft (752). Two of the first gear shaft (752) and the clutch gear (76) are provided. When the motor (4) rotates forward to the right position, one of the clutch gears (76) can mesh with the fifth gear (77), and when the motor (4) rotates backward to the right position, the other clutch gear (76) can mesh with the fifth gear (77). The upper cover (21) is provided with a through hole (218) for the sixth gear (78) to pass through and rotate therein, and the sixth gear (78) passes through the through hole (218). 18) and then meshed with the inner gear teeth (151). The fixing seat (3) is circumferentially fixed relative to the sleeve (22). A second gear shaft (711) and a third gear shaft (731) are also fixedly mounted on the fixing seat (3). The first gear (71) and the second gear (72) are coaxially sleeved on the second gear shaft (711) and can rotate synchronously. The third gear (73) and the fourth gear (74) are coaxially sleeved on the third gear shaft (731) and can rotate synchronously. The fifth gear (77) and the sixth gear (78) are coaxially connected and fixed through the fourth gear shaft (771) and can rotate synchronously. A second limiting hole (36) is opened at the upper end of the fixing seat (3). The lower end of the fourth gear shaft (771) is fixedly connected to the second limiting hole (36). When the fixing seat (3) rotates relative to the connecting head (1), the sixth gear (78) moves around the inner gear teeth (151).

9. The connection structure of a smart lock according to claim 6, characterized in that: The control circuit board (5) is provided with a positive conductive part (51) and a negative conductive part (52) on one side facing the upper cover (21); the negative conductive part (52) is connected with a conductive spring (53) extending vertically upward; the conductive spring (53) comprises a connecting end (531), a spring end (532) and a vertical rod (533) located between the connecting end (531) and the spring end (532); the connecting end (531) is connected to the negative conductive part (52); the positive electrode of the battery (6) abuts against the positive conductive part (51); the negative electrode of the battery (6) abuts against the spring end (532); the battery (6) is vertically arranged between the positive conductive part (51) and the spring end (532); and a first positioning groove (341) for supporting and fixing the vertical rod (533) and a second positioning groove (342) for supporting and fixing the spring end (532) are provided on the inner wall surface of the battery accommodating cavity (34).

10. The connection structure of a smart lock according to claim 9, characterized in that: The positive electrode conductive parts (51) and the negative electrode conductive parts (52) are respectively provided with three, the batteries (6) and the battery accommodating chambers (34) are respectively provided with three, the connection end (531) is connected and fixed to the control circuit board (5) by means of screws (54), the screws (54) pass upward through the control circuit board (5) and are threadedly connected to the bottom of the fixing seat (3), the side of the control circuit board (5) facing the upper cover (21) is also provided with a socket (55) and a UBS interface (56), the side of the control circuit board (5) facing the bottom plate (222) is provided with a button (57) and a lamp bead (58), and a plurality of the lamp bead (58) are equidistantly arranged along the circumference of the control circuit board (5), the bottom plate (222) is made of a light-transmitting material, and the side of the control circuit board (5) facing the bottom plate (222) is also provided with a buzzer (59) and a reset button (591).

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