Lock core structure and intelligent door lock

Abstract

The present invention provides a lock core structure and an intelligent door lock. The lock core structure includes a lock head, a transmission core, a connector, and a transmission tail. The transmission core is rotatably connected to the lock head. A first pin is connected to the end of the transmission core. One end of the connector is provided with an arc-shaped cavity with an inner diameter larger than the diameter of the first pin, and is sleeved on the first pin through the arc-shaped cavity. The other end of the connector is provided with a second pin. The second pin is spaced apart from the first pin and their axes are perpendicular to each other. The transmission tail is rotatably connected to the second pin. The structure realizes a movable connection between the transmission core and the transmission tail in a relatively small space, allowing the output shaft of the drive motor and the transmission core on the lock core to rotate off-axis during installation, thereby avoiding the situation where the drive motor cannot open the door normally due to poor usage conditions such as misaligned installation of the lock and deformation of the door panel.

Description

Technical Field

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

[0002] The fully automatic smart lock is achieved by setting a drive motor on the inner panel. After the outer panel collects information and verifies it, the inner panel supplies power to the drive motor, which drives the lock core inside the lock body to rotate, thereby unlocking the lock body.

[0003] like Figure 1 The figure shows a common lock core structure, which includes a lock head 1, a transmission core 12 rotatably connected to the lock head, a transmission tail 2 hingedly connected to the transmission core 12, and an output member 11 disposed on the transmission core 12. The output member 11 cooperates with the structure in the lock body for transmission, and the transmission tail 2 is connected to the drive motor. During installation of this lock core structure, the output shaft of the drive motor is directly connected to the transmission tail by fixing or riveting, which makes it difficult to ensure that the output shaft of the drive motor and the transmission tail are coaxial. If the misalignment reaches a certain level, the motor cannot drive the transmission tail to rotate, and the transmission tail will even brake the motor.

[0004] In the existing mechanical field, most cross couplings and universal joints are used to connect two shafts, allowing them to achieve rotational transmission even when there is an angle between the two axes. However, in smart door locks, the space at the connection between the transmission tail and the transmission core is too small to accommodate a cross coupling or universal joint with sufficient structural strength, making it unsuitable for the required lock core structure. Summary of the Invention

[0005] Therefore, in order to solve the defects of the prior art in which the transmission core and the transmission tail are directly connected, the present invention provides a lock core structure and an intelligent door lock.

[0006] In a first aspect, the lock core structure provided by the present invention includes:

[0007] The lock head has an output element inside, which is used to connect to the lock body in the smart door lock;

[0008] A transmission core is rotatably connected to the lock head and connected to the output member, and an end of the transmission core is connected to a first pin;

[0009] A connecting member, one end of which is provided with an arc-shaped cavity having an inner diameter larger than the diameter of the first pin, and is sleeved on the first pin through the arc-shaped cavity, and the other end of which is provided with a second pin, the second pin being spaced apart from the first pin and having axes perpendicular to each other;

[0010] The transmission tail is rotatably connected to the second pin shaft.

[0011] Optionally, the connecting member is a U-shaped structure, and the two ends of the connecting member are respectively an arc-shaped end and an open end, and the arc-shaped cavity is formed inside the arc-shaped end.

[0012] Optionally, a mounting groove is provided at the end of the transmission core, the first pin shaft is located in the mounting groove, the arcuate end of the connector is embedded in the mounting groove, and the width of the mounting groove is greater than the width of the arcuate end of the connector.

[0013] Optionally, two opposite groove walls of the installation groove are provided with coaxial first hinge holes, and both ends of the first pin shaft are respectively passed through and fixed in the first hinge holes.

[0014] Optionally, the open end is two parallel plates, the second hinge holes are provided on both plates, and the two ends of the second pin are respectively passed through and fixed in the two second hinge holes.

[0015] Optionally, the end of the transmission tail is located between the upper and lower plates of the open end.

[0016] Optionally, the end of the transmission tail connected to the second pin shaft is provided with a chamfer.

[0017] Optionally, protruding structures are provided on both sides of the two plates at the open end.

[0018] The smart door lock provided by the present invention has the following features:

[0019] The technical solution of the present invention has the following advantages:

[0020] 1. The lock core structure provided by the present invention has a connecting piece that rotates around the axis of the first pin shaft through the setting of the arc-shaped cavity, and the transmission tail can rotate around the axis of the second pin shaft, so that the transmission tail and the transmission core can still transmit and rotate in the state of deflection angle; and, since the inner diameter of the arc-shaped cavity is large, the connecting piece has a certain amount of movement, thereby avoiding mechanical interference between the connecting piece and the transmission core; the first pin shaft and the second pin shaft are separated by a certain distance, so that each pin shaft can have an independent and relatively large installation space, so that each pin shaft has a thicker size to improve structural strength; its overall structure is simple and compact, and the purpose of the movable connection between the transmission core and the transmission tail is achieved in a smaller space, and the output shaft of the driving motor and the transmission core on the lock core are allowed to rotate eccentrically during the installation process, which can largely avoid the situation where the driving motor cannot open the lock normally due to poor usage conditions such as improper installation of the lock device and deformation of the door panel.

[0021] 2. The lock core structure provided by the present invention adopts a U-shaped connecting piece, which has the advantages of simple structure, good structural strength, and easy processing and manufacturing; at the same time, by embedding the arc-shaped end of the connecting piece in the installation groove and connecting the transmission tail in the open end, the structure is made more compact and the distance between the transmission core and the transmission tail is shortened.

[0022] 3. The smart door lock provided by the present invention, when the lock body is not parallel to the door surface due to factors such as poor bending during the manufacturing process, the transmission core, transmission tail and connecting parts in the lock core structure are used to transmit the transmission, so that transmission can still be achieved even when there is an angular deviation between the transmission tail and the transmission, ensuring that the driving motor of the handle panel can be smoothly transmitted to the output part of the lock core. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a structural diagram of a lock core structure in the prior art;

[0025] Figure 2 A schematic structural diagram of a lock core structure provided in an embodiment of the present invention;

[0026] Figure 3 An exploded view of the lock core structure provided in an embodiment of the present invention;

[0027] Figure 4 A cross-sectional view showing the connection relationship between the connecting member, the first pin shaft and the mounting groove;

[0028] Figure 5 is a cross-sectional view showing the connecting member after deflection around the first pin;

[0029] Figure 6 A structural diagram showing the connection relationship among the connecting member, the second pin shaft and the transmission;

[0030] Figure 7 A schematic diagram showing the structure of the transmission tail after deflection around the second pin;

[0031] Figure 8 This is a schematic diagram of the structure of the smart door lock provided in an embodiment of the present invention.

[0032] Explanation of the accompanying reference numerals: 1. Locking head; 11. Output member; 12. Transmission core; 2. Transmission tail; 3. Connecting member; 4. Second pin shaft; 5. First pin shaft. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0036] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] The embodiment of the present invention provides a lock core structure, combined with Figures 2 to 7 As shown, the lock core structure includes: a lock head 1, a transmission core 12, a connecting piece 3 and a transmission tail 2.

[0038] The lock head 1 is used to connect to the lock body of the smart door lock. The lock head 1 is equipped with an output member 11. The output member 11 is a structure such as a dial or gear. The output member 11 is used to connect to the internal structure of the lock body, allowing the transmission member to drive the lock body to open. The lock head 1 is provided with a mounting hole. The transmission core 12 is rotatably connected to the mounting hole. One end of the transmission core 12 is connected to the output member 11, and the other end extends outside the mounting hole. The end of the transmission core 12 located outside the mounting hole is provided with a first hinge hole. The first hinge hole is connected to the first pin 5. The connecting member 3 is connected to the transmission core 12 via the first pin 5. The transmission tail 2 is connected to the connecting member 3.

[0039] One end of the connector 3 has an arc-shaped inner cavity with an inner diameter greater than that of the first pin 5, allowing the connector 3 to be sleeved onto the first pin 5 through the arc-shaped inner cavity. The other end of the connector 3 has a second hinge hole, into which a second pin 4 is connected. The axes of the second pin 4 and the first pin 5 are perpendicular to each other and spaced apart. One end of the transmission tail 2 is rotatably connected to the second pin 4.

[0040] With such a setting, the connecting member 3 can rotate around the axis of the first pin shaft 5 through the setting of the arc-shaped cavity, and the transmission tail 2 can rotate around the axis of the second pin shaft 4. Since the inner diameter of the arc-shaped cavity is large, the connecting member 3 has a certain amount of mobility, thereby avoiding mechanical interference between the connecting member 3 and the transmission core 12; the first pin shaft 5 and the second pin shaft 4 are separated by a certain distance, so that each pin shaft can have an independent and relatively large installation space, so that each pin shaft has a thicker size to improve the structural strength; its overall structure is simple and compact, and thus the purpose of the movable connection between the transmission core 12 and the transmission tail 2 is achieved in a smaller space, and the output shaft of the driving motor and the transmission core 12 on the lock core are allowed to rotate eccentrically during the installation process, which can largely avoid the situation where the driving motor cannot unlock normally due to poor usage conditions such as misaligned installation of the lock and deformation of the door panel.

[0041] Specifically, if Figure 3 As shown, the connecting member 3 is arranged in a U-shaped structure, with the two ends of the connecting member 3 being an arcuate end and an open end, respectively. The inner side of the arcuate end forms an arc-shaped cavity that is connected to the first pin 5, and the transmission tail 2 is connected to the open end. This has the advantages of simple structure, good structural strength, and easy processing and manufacturing. The open end is composed of two mutually parallel upper and lower plates, each of which has a relatively coaxial second hinge hole. The second pin 4 is inserted and fixed in the two second hinge holes, so that the axis of the second pin 4 is perpendicular to the plates. The end of the transmission tail 2 is located between the upper and lower plates.

[0042] Further, if Figure 4 and Figure 5 As shown, the transmission core 12 is provided with a mounting groove at the end of the first pin shaft 5. The mounting groove is formed by the end surface of the transmission core 12 being recessed toward the output member 11. First hinge holes are formed on the groove walls on both sides of the mounting groove. The two ends of the first pin shaft 5 are respectively passed through and fixed in the two first hinge holes, so that the first pin shaft 5 is located in the mounting groove.

[0043] The curved end of the connector 3 is embedded in the mounting slot and engages with the first pin 5, while the open end of the connector 3 is located outside the mounting slot, making the structure more compact and reducing the distance between the transmission core 12 and the transmission tail 2. In addition, the width of the mounting slot is greater than the width of the connector 3, allowing the connector 3 to move around the first pin 5 within the mounting slot, while at the same time limiting the angle of movement of the connector 3 by the width of the mounting slot.

[0044] Further, if Figure 6 and Figure 7 As shown, the plate at the open end of the connector 3 is provided with raised structures on both sides, which can increase the width of the two plates at the connection end, further improving the connection strength between the second pin 4 and the connection end. The end where the transmission tail 2 connects to the second pin 4 is provided with a chamfered structure to prevent positional interference between the transmission tail 2 and the end of the transmission core 12 when the transmission tail 2 rotates around the second pin 4.

[0045] As an alternative embodiment, the mounting groove can be opened at the end of the transmission tail 2, the first pin shaft 5 is connected to the transmission tail 2, the arc-shaped end of the connecting member 3 is connected to the transmission tail 2, and the transmission core 12 is connected to the second pin shaft 4 at the open end of the connecting member 3.

[0046] Based on the lock core structure above, the present invention also provides a smart door lock, such as Figure 8 As shown, it includes the lock core structure described above. When the lock body is not parallel to the door surface due to factors such as poor bending during the door manufacturing process, the smart handle can only be installed until it is flush with the door surface. Therefore, the lock core cannot be guaranteed to be perpendicular to the smart handle, and an angle deviation will exist between the output shaft of the corresponding drive motor and the transmission core 12 in the lock core. Through the lock core structure, the U-shaped connecting member 3 between the transmission core 12 and the transmission tail 2 is utilized to ensure that transmission can still be achieved even when there is an angle deviation between the transmission tail 2 and the transmission core 12, ensuring that the drive motor of the handle panel can smoothly transmit the power to the output member 11 of the lock core.

[0047] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications derived therefrom remain within the scope of protection of the present invention.

Claims

1. A lock core structure, characterized in that: include: The lock head has an output element inside, which is used to connect to the lock body in the smart door lock; A transmission core is rotatably connected to the lock head and connected to the output member, and an end of the transmission core is connected to a first pin; A connecting member, one end of which is provided with an arc-shaped cavity having an inner diameter larger than the diameter of the first pin, and is sleeved on the first pin through the arc-shaped cavity, and the other end of which is provided with a second pin, the second pin being spaced apart from the first pin and having axes perpendicular to each other; A transmission tail rotatably connected to the second pin shaft; The connecting piece is a U-shaped structure, with two ends of the connecting piece being a curved end and an open end, and the curved cavity is formed inside the curved end; The end of the transmission core is provided with a mounting groove, the first pin shaft is located in the mounting groove, the arc-shaped end of the connecting member is embedded in the mounting groove, and the width of the mounting groove is greater than the width of the arc-shaped end of the connecting member; Two opposite groove walls of the installation groove are provided with coaxial first hinge holes, and both ends of the first pin shaft are respectively passed through and fixed in the first hinge holes; The open end is composed of two parallel plates, both of which are provided with second hinge holes, and both ends of the second pin are respectively passed through and fixed in the two second hinge holes.

2. The lock core structure according to claim 1, characterized in that: The end of the transmission tail is located between the upper and lower plates of the open end.

3. The lock core structure according to claim 2, characterized in that: The end portion of the transmission tail connected to the second pin shaft is chamfered.

4. The lock core structure according to claim 1, characterized in that: Both sides of the two plates at the open end are provided with protruding structures.

5. A smart door lock, characterized in that: A lock core structure according to any one of claims 1 to 4.

Images