Universal intelligent knob

Abstract

The application relates to a universal intelligent knob, which comprises an intelligent knob body, the intelligent knob body comprises a rotating part for driving a mechanical lock core to rotate and a connecting seat for being fixedly connected with the mechanical lock core, the rotating part can rotate relative to the connecting seat, the intelligent knob body further comprises a connecting groove arranged in the middle part and extending inwardly for being connected with the mechanical lock core, the connecting groove is arranged through the rotating part and the connecting seat, the connecting groove comprises long grooves arranged symmetrically upwards and downwards and a circular groove arranged between the two long grooves, and the connecting seat comprises a fastening structure arranged outside the connecting groove for being fixedly connected with the mechanical lock core. The intelligent knob has the convenience of disassembly and assembly and excellent adaptability, the combination structure of the circular groove and the long groove of the connecting groove can be adapted to common mechanical lock cores, keys and mechanical knobs on the market, and it is unnecessary to improve the design or add connecting and fastening parts for different mechanical lock cores.

Description

Technical Field

[0001] This utility model relates to the field of door lock accessories technology, specifically to a universal smart knob. Background Technology

[0002] With the rapid development of the smart home industry, door locks, as the first line of defense for home security, are facing an increasing demand for intelligent upgrades. Traditional mechanical locks, with their simple structure and high reliability, are still widely used in various residences and offices. However, mechanical locks lack intelligent functions such as remote control, identity recognition, and alarm systems, making it difficult to meet modern users' dual needs for convenience and security. Especially in Europe and America, due to the high cost of upgrading mechanical lock cylinders to intelligent versions, smart knobs have become the mainstream choice for intelligent door locks.

[0003] Currently, there are two main technical approaches to upgrading mechanical locks to intelligent systems: One is to directly replace the entire lock assembly with a brand-new intelligent lock body. While this method achieves full intelligent functionality, it requires large-scale modifications to the door structure, such as re-drilling holes and rewiring. This is not only complex and time-consuming but also costly, and it wastes the existing mechanical lock, failing to meet users' demands for energy conservation, environmental protection, and cost-effectiveness. The second approach involves adding an intelligent module to the existing mechanical lock, i.e., upgrading it to intelligent functionality by adding a smart knob. This method does not require replacing the original mechanical lock body, resulting in lower monetary and installation costs, making it the mainstream low-cost upgrade solution in the current market.

[0004] However, existing smart knob products for retrofitting mechanical locks still have significant limitations. Existing smart knobs come in various models to accommodate mechanical lock cylinders with slight differences in size. They are generally designed for connections to mechanical lock cylinders using screws or other complex fastening structures. Installation requires specialized tools, and aligning the knob with the lock cylinder is difficult, making disassembly and assembly cumbersome and potentially damaging to the original lock cylinder. Their versatility is poor, and installation typically requires structural modifications or the addition of numerous accessories to achieve the integration of the smart knob with the mechanical lock cylinder.

[0005] Therefore, overcoming the aforementioned defects and providing a universal smart knob that can be adapted to common mechanical lock cylinders and is easy to install and disassemble has become an important issue that urgently needs to be addressed by those skilled in the art. Utility Model Content

[0006] This invention overcomes the shortcomings of the above-mentioned technologies and provides a universal smart knob.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A universal smart knob includes a smart knob body. The smart knob body includes a rotating part for driving a mechanical lock cylinder to rotate and a connecting seat for connecting and fixing with the mechanical lock cylinder. The rotating part is rotatable relative to the connecting seat. The smart knob body also includes a connecting groove disposed in its middle and extending inward for connecting with the mechanical lock cylinder. The connecting groove passes through the rotating part and the connecting seat. The connecting groove includes symmetrically arranged elongated grooves and a circular groove disposed between the two elongated grooves. The connecting seat includes a fastening structure disposed on the outside of the connecting groove for connecting and fixing with the mechanical lock cylinder.

[0008] Furthermore, the fastening structure includes a first screw disposed on both sides of the circular groove of the connecting seat and a second screw disposed on one of the elongated grooves.

[0009] Furthermore, the connecting seat includes elastic arc-shaped fixing strips disposed on both sides of the circular groove of the connecting seat, and the front end of the first screw presses against the arc-shaped fixing strips.

[0010] Furthermore, the connecting seat protrudes outward from the smart knob body, and the connecting seat includes a first protrusion for installing a first screw and a second protrusion for installing a second screw, which are disposed on the corresponding side.

[0011] Furthermore, it also includes a conversion connector that is detachably connected to the connection groove of the main body of the smart knob. The shape of the conversion connector is adapted to the shape of the connection groove. The conversion connector includes a connection hole for connecting the mechanical lock cylinder and convex strips symmetrically arranged at the upper and lower ends of the connection hole. The connection groove of the rotating part is provided with a sliding groove for the convex strips to be inserted and circumferentially limited. The conversion connector can rotate with the rotation of the rotating part.

[0012] Furthermore, the connecting hole is circular, and the conversion connector includes a third screw that extends through and into the circular hole.

[0013] Furthermore, the connecting hole includes a circular hole at its bottom and a square hole at the top of the circular hole, wherein the side length of the square hole is equal to the diameter of the circular hole.

[0014] Furthermore, the connecting hole is an irregularly shaped hole.

[0015] Furthermore, the smart knob body also includes a mounting base and a battery assembly, a motor assembly, and a circuit board assembly mounted on the mounting base; the smart knob body also includes a gear transmission assembly mounted on the upper end of the mounting base, a connector connected to the upper end of the mounting base and covering the gear transmission assembly, and a shell that is snapped into the connector and encloses the battery assembly, motor assembly, and circuit board assembly of the mounting base. The lower end of the connector is fixedly connected to the mounting base, the upper end of the motor assembly is meshed with the gear transmission assembly, the connector is installed in the connector, and the upper end of the gear transmission assembly extends out of the connector and meshes with the inner side wall of the connector.

[0016] Furthermore, the battery assembly includes a battery, the motor assembly includes a motor and a first gear that rotates with the motor shaft, the upper end of the motor assembly is meshed with a gear transmission assembly through the first gear, the mounting base includes a battery mounting cavity and a motor mounting cavity, the connecting base includes an annular inner ring, the annular inner ring wall surface is provided with teeth equidistantly arranged circumferentially, the gear transmission assembly includes a first gear that extends out of the connecting head and meshes with the teeth, and the mounting base is provided with a button exposed outside the housing.

[0017] Compared with the prior art, the beneficial effects of this utility model are: The smart knob provided in this case combines ease of installation and disassembly with excellent adaptability. Through a combination of round and long slots in the connecting groove, it can be adapted to common mechanical lock cylinders, keys, and mechanical knobs on the market. This eliminates the need for design modifications or additional connecting / fastening components for different mechanical lock cylinders. Simultaneously, the long slot accommodates both the key inserted into the mechanical lock cylinder and the internal mechanical knob, meeting the needs of various scenarios such as double-opening lock cylinders (internal and external), and single-opening lock cylinders with an internal mechanical knob and an external keyhole, significantly improving the product's versatility and applicability. The fastening structure on the connecting base, combined with the radial positioning of the connecting groove, allows users to easily install and disassemble the smart knob and mechanical lock cylinder by manipulating the fastening structure. The connection is precise and convenient, and the operation is simple and efficient, requiring minimal parts and installation tools. While ensuring convenient installation and disassembly and wide compatibility, it significantly reduces the cost and operational difficulty for users to upgrade their mechanical lock cylinders to smart technology. Attached Figure Description

[0018] Figure 1 This is an exploded view of the main body of the smart knob in this case.

[0019] Figure 2 This is a 3D view of the main body of the smart knob in this case.

[0020] Figure 3 This is a structural schematic diagram of the connector in this case.

[0021] Figure 4 This is a structural schematic diagram of Embodiment 1 of the conversion connector in this case.

[0022] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the conversion connector in this case.

[0023] Figure 6 These are schematic diagrams of embodiments three and four of the conversion connector in this case.

[0024] Figure 7 This is a schematic diagram of the double-opening mechanical lock cylinder being assembled on the door in this case.

[0025] Figure 8 This is a schematic diagram showing the mechanical lock cylinder with a mechanical knob on the inside of the single-opening door in this case, assembled on the door body, with the mechanical knob removed.

[0026] Figure 9 This is a schematic diagram showing the mechanical lock cylinder with a mechanical knob on the inside of the single-opening door in this case being assembled on the door body, and the conversion connector being installed after the mechanical knob is removed.

[0027] Figure 10 This is a schematic diagram showing the assembly state of the smart knob installed on the mechanical lock cylinder of the door in this case. Detailed Implementation

[0028] The following examples provide a more detailed description of the features and other related characteristics of this utility model, to facilitate understanding by those skilled in the art: The smart knob provided in this case is mainly used for the intelligentization of mechanical lock cylinders. Especially in Europe, where labor and material costs are high and buildings are relatively old, the demand for intelligent mechanical lock cylinders is quite common. The smart knob can effectively reduce costs while realizing the intelligentization of mechanical lock cylinders, effectively solving these problems and is very popular in European countries. Generally, the smart knob is installed on the inside of the door.

[0029] Based on this premise, in order to further optimize the versatility and ease of installation and removal of the smart knob, such as Figures 1 to 10As shown, this invention provides a universal smart knob, including a smart knob body 100. The smart knob body 100 includes a rotating part 101 for driving the mechanical lock cylinder 200 to rotate and a connecting seat 1 for connecting and fixing to the mechanical lock cylinder 200. The rotating part 101 can rotate relative to the connecting seat 1. In specific implementation, the rotating part 101 is connected and fixed to the mechanical lock cylinder 200, and is a key component for the secure connection between the smart knob body 100 and the mechanical lock cylinder 200. The rotation of the rotating part 101 relative to the connecting seat 1 drives the mechanical lock cylinder 200 to achieve intelligent operation. The smart knob body 100 also includes a connecting groove 2 disposed in its middle and extending inward for connecting to the mechanical lock cylinder 200. The connecting groove 2 passes through the rotating part 101 and the connecting seat 1, and includes symmetrically arranged elongated grooves 21 and a circular groove 22 disposed between the two elongated grooves 21. In specific implementation, the connecting groove 2 passes through the rotating part 101 and the connecting seat 1 along the axial direction. The long groove 21 is a symmetrically arranged rectangle. Through the long grooves 21 on both sides, it can be adapted to the key 400 and the internal mechanical knob 500 of common mechanical lock cylinders 200 on the market. The circular groove 22 in the middle is adapted to the circular part of the commonly used mechanical lock cylinder 200 for assembling the lock cylinder. Currently, the shape of common mechanical lock cylinders 200 on the market is basically that the upper part is circular to accommodate and assemble the lock cylinder, and the lower part is rectangular to accommodate the float ball and support the lock shell. The connecting groove 2 in this case is set to adapt to the shape of the mechanical lock cylinder 200 and the mechanical knob 500, so as to be universal to the shape of common mechanical lock cylinders 200 on the market. That is, the circular groove 22 and one of the long grooves 21 on one side are adapted to the mechanical lock cylinder 200. Through the fastening structure on the connecting seat 1, the main body of the smart knob is fixedly connected to the mechanical lock cylinder 200. When the intelligent knob of this invention is adapted to be installed on a double-lock cylinder 200 with double cylinders inside and outside the door, a key 400 needs to be inserted. During installation, the key 400 is inserted into the connecting groove 2 inside the rotating part 101. The upper and lower ends of the key 400 are respectively engaged in the upper and lower elongated grooves 21 to achieve circumferential limiting of both the rotating part 101 and the key 400. When the rotating part 101 rotates, it drives the key 400 to rotate, thereby controlling the mechanical lock cylinder 200. Similarly, when the intelligent knob of this invention is adapted to be installed on a mechanical lock cylinder 200 with a single cylinder inside the door using a mechanical knob 500, the mechanical knob 500 is inserted into the connecting groove 2 inside the rotating part 101. The upper and lower ends of the mechanical knob 500 are respectively engaged in the upper and lower elongated grooves 21 to achieve circumferential limiting of both the rotating part 101 and the mechanical knob 500. When the rotating part 101 rotates, it drives the mechanical knob 500 to rotate, thereby controlling the mechanical lock cylinder 200. The connecting seat 1 includes a fastening structure disposed on the outside of the connecting groove 2 for connecting and fixing to the mechanical lock cylinder 200.The fastening structure securely connects the connecting seat 1 to the mechanical lock cylinder 200, thereby achieving a secure connection between the smart knob and the mechanical lock cylinder 200 and ensuring the stability of the connection.

[0030] As described above, the smart knob provided in this case requires no modification to the structure of the smart knob body 100 or the mechanical lock cylinder 200, nor the addition of any extra components. The smart knob body 100 and the mechanical lock cylinder 200 can be quickly connected via the connecting seat 1, making assembly and disassembly extremely convenient and quick. This design allows the smart knob to be compatible with various common shapes of mechanical lock cylinders 200, eliminating the need for large-scale modifications to existing door locks. The smart knob can simply be fixed to the mechanical lock cylinder 200 via the connecting slot 2 and the fastening structure, significantly reducing the cost and difficulty of intelligent transformation and providing users with a convenient and economical intelligent door lock solution.

[0031] Reference Figures 1-3 , Figure 10 As shown, the fastening structure further includes a first screw 11 disposed on both sides of the circular groove 22 of the connecting seat 1 and a second screw 12 disposed on one side of the elongated groove 21. Through the cooperation of the first screw 11 and the second screw 12, the smart knob body 100 is securely connected to the mechanical lock cylinder 200. During installation, the connecting groove 2 of the smart knob body 10 is first initially fitted with the outside of the mechanical lock cylinder 200. After adjusting the position, the first screw 11 is tightened to make the connecting seat 1 and the mechanical lock cylinder 200 tightly connected at the position corresponding to the circular groove 22. Then, the position corresponding to the long groove 21 is further reinforced by the second screw 12. Tightening the second screw 12 ensures the stability of the smart knob body 100 in the horizontal and vertical directions and in the overall structure, avoiding loosening or shaking during use. This ensures that the smart knob can stably and reliably drive the mechanical lock cylinder 200 to rotate, realizing the unlocking and locking functions. This fastening structure design is simple and practical, easy to operate, low in cost, and can effectively ensure the stability of the connection between the smart knob and the mechanical lock cylinder 200.

[0032] Continue to refer to Figures 1-3 , Figure 10As shown, the connecting seat 1 further includes elastic arc-shaped fixing strips 13 disposed on both sides of the circular groove 22 of the connecting seat 1, with the front end of the first screw 11 pressing against the arc-shaped fixing strips 13. In specific implementation, the arc-shaped fixing strips are made of elastic materials, such as plastic with a certain degree of elasticity. When installing the smart knob, when the first screw 11 is tightened, the front end of the first screw 11 will gradually press against the arc-shaped fixing strip 13, causing it to undergo elastic deformation and move closer to the mechanical lock cylinder 200, thereby generating a continuous and stable pressure. This pressure allows the connecting seat 1 and the mechanical lock cylinder 200 to be connected more tightly at the corresponding position of the circular groove 22, especially in the case of double-opening lock cylinders. Moreover, due to the elastic characteristics of the arc-shaped fixing strip 13, it can also buffer the vibration and impact forces that may be generated during use to a certain extent, further ensuring the stability of the connection between the smart knob and the mechanical lock cylinder 200, and improving the reliability of the entire door lock intelligent system.

[0033] Furthermore, continue to refer to Figures 1-3 , Figure 10 As shown, the connecting seat 1 protrudes outward from the smart knob body 100. The connecting seat 1 includes a first protrusion 14 for mounting the first screw 11 and a second protrusion 15 for mounting the second screw 12, both located on corresponding sides. This protrusion provides a gap between the smart knob and the door panel when the smart knob is installed on the mechanical lock cylinder 200 on the door, facilitating installation. The first and second protrusions provide mounting points for the first and second screws, respectively, which, combined with the mounting gap, allow for easy external connection and fixation between the connecting seat and the external mechanical lock cylinder. Furthermore, the first and second protrusions ensure a more secure screw installation, increase the thread engagement length, prevent thread stripping, and avoid screw loosening due to insufficient installation space. This design not only improves the ease of installation of the smart knob but also enhances the overall structural stability and reliability.

[0034] Furthermore, as a preferred embodiment of this case, refer to Figures 1-6 , Figures 8-10As shown, the smart knob of this invention also includes a conversion connector 300 detachably connected to the connection groove 2 of the smart knob body 100. The shape of the conversion connector 300 is adapted to the shape of the connection groove 2, allowing it to be embedded in and circumferentially confined within the connection groove 2. The conversion connector 300 includes a connection hole 301 for connecting to the mechanical lock cylinder 200 and symmetrically arranged protrusions 302 at the upper and lower ends of the connection hole 301. That is, the shape of the conversion connector 300 is adapted to the shape of the connection groove 2, wherein the outer wall of the connection hole 301 is circular to fit the circular groove 22, and the protrusions 302 are rectangular to fit the elongated groove 21. A sliding groove 3 is provided in the connection groove 2 of the rotating part 101 for the protrusions 302 to be inserted and circumferentially confined, thereby achieving circumferential confining between the conversion connector 300 and the rotating part 101, so that the conversion connector 300 can rotate with the rotating part 101. In this embodiment, the mechanical lock cylinder 200 is designed to be more compatible with various models of single-lock cylinders with mechanical knobs 500 inside the door, thereby enhancing the versatility of the mechanical lock cylinder 200. In cases where the shape of the mechanical knob 500 inside the door does not match the connecting slot 2, preventing the mechanical knob 500 from being inserted into the connecting slot 2 and thus preventing the smart knob from connecting to the mechanical lock cylinder 200, the user only needs to remove the knob housing of the mechanical lock cylinder inside the door and then connect it via the conversion connector 3 inserted into the drive rod 600 of the mechanical lock cylinder 200 (see reference). Figure 8 , Figure 9 This enables intelligent operation of the mechanical lock cylinder 200. The addition of a detachable conversion connector 3 significantly enhances the versatility and market competitiveness of the intelligent knob, making it compatible with the requirements of the vast majority of mechanical lock cylinders 200 on the market.

[0035] Continue to refer to Figures 1-3 , Figure 10 As shown, to further enhance the versatility of the smart knob and adapt to the drive rods 600 of different single-lock mechanical lock cylinders 200, in some embodiments, the connecting hole 301 is a circular hole 3011, and the conversion connector 300 includes a third screw 303 extending through the circular hole 3011. The third screw 303 is provided to ensure that the conversion connector 300 can be connected and fixed to the drive rod 600, thereby allowing them to rotate synchronously with circumferential limitation. In some embodiments, the connecting hole 301 includes a circular hole 3012 at its bottom and a square hole 3013 at the top of the circular hole 3012, the side length of the square hole 3013 being equal to the diameter of the circular hole 3012. In some embodiments, the connecting hole 301 is an irregularly shaped hole 3014. In these two embodiments, because the shape of the connecting hole 301 is sufficient to circumferentially limit the drive rod 600, no screw is required for fixation, making disassembly and assembly more convenient. In specific implementation, as shown... Figure 6As shown, the irregular hole 3014 is composed of symmetrical arc-shaped parts at the top and bottom ends and a vertical part connecting the two arc-shaped parts, forming a rectangular hole with arc-shaped ends; secondly, the irregular hole 3014 can also be the shape of a circular hole cut from one side with a vertical part.

[0036] As described above, by setting different shaped connection holes 301 to adapt to different mechanical lock cylinders 200 drive rods 600, the versatility of the smart knob in this case is further improved. When faced with mechanical lock cylinder drive rods 600 of different specifications and shapes, the diverse structure of these connection holes 301 provides the smart knob with greater flexibility and adaptability. This design not only improves the versatility of the smart knob, but also allows users to flexibly select the most suitable conversion connector according to the actual type of mechanical lock cylinder encountered during installation, thereby easily realizing the connection and intelligent upgrade of the smart knob with the mechanical lock cylinder 200, saving replacement and disassembly costs, and making disassembly and assembly more convenient.

[0037] Furthermore, referring to Figures 1-3 As shown, the main body 100 of the smart knob in this case also includes a mounting base 4 and a battery assembly 5, a motor assembly 6, and a circuit board assembly 7 mounted on the mounting base 4. The mounting base is used to mount and fix the battery assembly 5, motor assembly 6, and circuit board assembly 7, providing a mounting platform for each component and ensuring the stability of their connections. The battery assembly 5 provides power to the smart knob, the motor assembly 6 provides power to the smart knob, and the circuit board assembly 7 is the control center of the smart knob, integrating various electronic components and control circuits. It is responsible for processing and transmitting various operation commands of the smart knob, realizing communication with external devices and achieving intelligent control functions. In specific implementations, the smart knob in this case includes, but is not limited to, remote Bluetooth, mobile APP, fingerprint recognition, password, and NFC card swiping control functions. The main body 100 of the smart knob also includes a gear transmission assembly 8 mounted on the upper end of the mounting base 4, a connector 9 connected to the upper end of the mounting base 4 and covering the gear transmission assembly 8, and a shell 10 that is snapped into the connector 9 and encloses the battery assembly 5, motor assembly 6, and circuit board assembly 7 of the mounting base 4. The lower end of the connector 9 is fixedly connected to the fixed base 4, the upper end of the motor assembly 6 is meshed with the gear transmission assembly 8, the connecting base 1 is installed in the connector 9, and the upper end of the gear transmission assembly 8 extends out of the connector 9 and meshes with the inner side wall of the connecting base 1.

[0038] Continue to refer to Figures 1-3As shown, the battery assembly 5 in this case includes a battery 51. The motor assembly 6 includes a motor 61 and a first gear 62 that rotates with the motor shaft. The upper end of the motor assembly 6 is meshed with the gear transmission assembly 8 through the first gear 62, thereby realizing the drive of the gear transmission assembly 8 by the motor 61. In specific implementations, the number and structure of the gears in the gear transmission assembly 8 can be set by the user with reference to the common structures and numbers in the field. The fixing base 4 includes a battery mounting cavity 41 and a motor mounting cavity 42. In specific implementations, three sets of batteries 51 and battery mounting cavities 42 are adapted to each other. The connecting base 1 includes an annular inner ring 16. The annular inner ring 16 has teeth 161 equidistantly arranged on its wall surface. The gear transmission assembly 8 includes a second gear 81 that extends out of the connecting head and meshes with the teeth 161. With this structure, when the motor 61 drives the first gear 61 to drive the gear transmission assembly 8, the second gear 81 moves circumferentially on the meshing teeth 161 on the wall of the inner ring 16, thereby realizing the rotation of the rotating part 101 relative to the connecting seat 1, and realizing the intelligent operation of the mechanical lock cylinder 200. A button 43 exposed on the housing 10 is provided on the fixed seat 4, allowing the user to easily press the button 43 to disassemble and assemble the housing 10. This facilitates the user removing the housing 10 to replace the battery or perform internal repairs, and the operation is convenient and tool-free.

[0039] Finally, it should be noted that other specific components, structures, or principles of the battery assembly 5, motor assembly 6, circuit board assembly 7, and gear transmission assembly 8, which are not specifically mentioned in this case, are well-known technologies in the field. Those skilled in the art can refer to the corresponding components, structures, or principles in the prior art for design. These parts are not the focus of protection in this case, so they will not be elaborated on further.

[0040] As stated above, this case protects a general-purpose smart knob, and all technical solutions that are the same as or similar to this case should be considered to fall within the scope of protection of this case.

Claims

1. A universal smart knob, comprising a smart knob body (100), characterized in that: The intelligent knob body (100) includes a rotating part (101) for driving the mechanical lock cylinder (200) to rotate and a connecting seat (1) for connecting and fixing with the mechanical lock cylinder (200). The rotating part (101) can rotate relative to the connecting seat (1). The intelligent knob body (100) also includes a connecting groove (2) for connecting with the mechanical lock cylinder (200) located in its middle and extending inward. The connecting groove (2) passes through the rotating part (101) and the connecting seat (1). The connecting groove (2) includes an elongated groove (21) arranged symmetrically on the upper and lower sides and a circular groove (22) arranged between the two elongated grooves (21). The connecting seat (1) includes a fastening structure for connecting and fixing with the mechanical lock cylinder located on the outside of the connecting groove (2).

2. The universal smart knob according to claim 1, characterized in that: The fastening structure includes a first screw (11) disposed on both sides of the circular groove (22) of the connecting seat (1) and a second screw (12) disposed on one side of the long groove (21).

3. A universal smart knob according to claim 2, characterized in that: The connecting seat (1) includes elastic arc-shaped fixing strips (13) disposed on both sides of the circular groove (22) of the connecting seat (1), and the front end of the first screw (11) presses against the arc-shaped fixing strips (13).

4. A universal smart knob according to claim 2, characterized in that: The connecting seat (1) protrudes outward from the smart knob body (100). The connecting seat (1) includes a first protrusion (14) for installing a first screw (11) and a second protrusion (15) for installing a second screw (12) on the corresponding side.

5. A universal smart knob according to any one of claims 1-4, characterized in that: It also includes a conversion connector (300) that is detachably connected to the connection groove (2) of the main body (100) of the smart knob. The shape of the conversion connector (300) is adapted to the shape of the connection groove (2). The conversion connector (300) includes a connection hole (301) for connecting the mechanical lock cylinder (200) and convex strips (302) symmetrically arranged at the upper and lower ends of the connection hole (301). The connection groove (2) of the rotating part (101) is provided with a sliding groove (3) for the convex strips (302) to be inserted and circumferentially limited. The conversion connector (300) can rotate with the rotation of the rotating part (101).

6. A universal smart knob according to claim 5, characterized in that: The connecting hole (301) is round (3011), and the conversion connector (300) includes a third screw (303) that extends through the round hole (3011).

7. A universal smart knob according to claim 5, characterized in that: The connecting hole (301) includes a circular hole (3012) at its bottom and a square hole (3013) at the top of the circular hole (3012), wherein the side length of the square hole (3013) is equal to the diameter of the circular hole (3012).

8. A universal smart knob according to claim 5, characterized in that: The connecting hole (301) is an irregular hole (3014).

9. A universal smart knob according to claim 5, characterized in that: The intelligent knob body (100) also includes a fixed base (4) and a battery assembly (5), a motor assembly (6) and a circuit board assembly (7) installed on the fixed base (4); the intelligent knob body (100) also includes a gear transmission assembly (8) installed on the upper end of the fixed base (4), a connector (9) connected to the upper end of the fixed base (4) and covering the gear transmission assembly (8), and a shell (10) that is snapped into the connector (9) and encloses the fixed base (4) battery assembly (5), motor assembly (6) and circuit board assembly (7). The lower end of the connector (9) is fixedly connected to the fixed base (4), the upper end of the motor assembly (6) is meshed with the gear transmission assembly (8), the connector (1) is installed in the connector (9), and the upper end of the gear transmission assembly (8) extends out of the connector (9) and meshes with the inner wall of the connector (1).

10. A universal smart knob according to claim 9, characterized in that: The battery assembly (5) includes a battery (51), the motor assembly (6) includes a motor (61) and a first gear (62) that rotates with the motor shaft, the upper end of the motor assembly (6) is meshed with the gear transmission assembly (8) through the first gear (62), the fixed seat (4) includes a battery mounting cavity (41) and a motor mounting cavity (42), the connecting seat (1) includes an annular inner ring (16), the annular inner ring (16) has teeth (161) equidistantly arranged on the wall surface, the gear transmission assembly (8) includes a second gear (81) that extends out of the connecting head and meshes with the teeth (161), and the fixed seat (4) has a button (43) exposed on the outer shell (10).

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