Intelligent lock handle integrated with clutch transmission mechanism

Abstract

The utility model provides an intelligent lock handle integrated with a clutch transmission mechanism, which comprises a handle seat mounted on a rear panel of a door, and the clutch transmission mechanism is mounted on the handle seat; the clutch transmission mechanism comprises a shell, a gear box and a mandrel, a rotating shaft of the gear box is in pivot joint with an input shaft section of the mandrel, an output shaft section of the mandrel extends out of a front end cover of the shell and is used for being connected with a lock cylinder in a door, a base of the gear box extends outwards from the inside of a rear end cover of the shell, and a rotating handle is arranged on the base in a sleeved mode. The intelligent lock has the advantages that the electric clutch transmission device and the manual clutch transmission device are integrated and arranged in the door handle, the integration level is high, the operation stability is good, the reliability is high, a modular structure is adopted, non-destructive clutch installation can be achieved, and the after-installation cost of the intelligent lock is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to door lock control technical field, concretely relates to intelligent lock handle. BACKGROUND

[0002] Door handle is an important component of door lock, and the door handle drives the door lock transmission member to rotate through control, so that the door lock can be opened. In the prior art, the handle of the electronic door lock is only a component for transmitting the opening force of the user, and in general, the handle is solid. Even if the handle is a hollow structure, the internal space is very small. Therefore, the user usually designs the clutch control mechanism and electronic components of the complex electronic door lock in the lock body instead of the handle. Since the lock body has sufficient space to accommodate all detection and automatic control mechanisms, the lock body structure generally has a large size and a high price, and is not convenient to install and maintain.

[0003] We know that the clutch control mechanisms of the electronic door locks on the market are divided into two categories. One type is that the clutch is on the electronic lock panel, and the clutch controls the disconnection and connection of the electronic lock handle and the square rod to achieve that the square rod can transmit the rotation of the handle to the lock body to open the door when the clutch is closed. The advantage of this type of lock is that the lock body is a pure mechanical component, which has good reliability and low cost. However, there is a big compatibility problem. There are many types of mechanical lock bodies on the market, and the positions of the square rods of various sizes and specifications do not have a unified standard. More troublesome is that some mechanical lock bodies can only open one latch for the connection hole of the square rod outside the door, which cannot meet the needs of the electronic lock to open all the latches. Therefore, when installing this type of electronic lock, the original lock body on the door needs to be removed, and a mechanical lock body matched with the electronic lock needs to be replaced to ensure the normal operation of the electronic lock. The other type is that the clutch is built-in the lock body, the door handle is connected with the square rod hole on the lock body inside the door through the square rod, and the electronic module controls the clutch in the lock body to connect and close the square rod hole of the lock body and the actuator of the lock body after authentication. In this way, the square rod can convert the force on the handle into the force to control the latches of the lock body, thereby achieving the opening of the door. This type of electronic lock with the clutch in the lock body must replace the mechanical lock body on the door during installation, and also faces the process of removing the lock body as the first type of electronic lock. Since the new lock body may have a different position on the door during the replacement of the lock body, a new hole needs to be opened on the door. In a more severe case, the position and size of the insertion hole of the latches on the door frame also need to be adjusted according to different lock bodies. This installation method destroys the original structure of the door and the door frame, which is called "destructive" installation. It will directly lead to the destruction of the original door and door frame of the user, and the work error of the installer will lead to the replacement of the door and door frame, which brings great annoyance to the user. More troublesome is that since the lock bodies selected by different electronic locks are different, the door and door frame may be destroyed again when the user replaces the electronic lock of another company.

[0004] In summary, on the one hand, how to solve the problem of non-destructive installation will be an important issue in the electronic lock aftermarket. On the other hand, in order to reduce the cost and size of electronic door locks while achieving both manual and electric unlocking and locking functions and high integration, technicians are working hard to explore whether all the functions of electronic door lock control can be realized in the rear handle. The clutch transmission mechanism set in the rear handle is a key component. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides an intelligent lock handle with an integrated clutch transmission mechanism. The clutch transmission device integrates electric and manual clutches into the handle, which has a high degree of integration and strong versatility. It can be directly installed on the back panel of the door without disassembling the lock cylinder box, thus reducing the cost of retrofitting.

[0006] The technical solution of this utility model is achieved through the following means:

[0007] This utility model discloses an intelligent lock handle integrated with a clutch transmission mechanism, including a handle base installed on the back panel of a door, on which a clutch transmission mechanism is installed; the clutch transmission mechanism includes a housing, a gearbox, and a spindle, the rotating shaft of the gearbox is pivotally connected to the input shaft section of the spindle, the output shaft section of the spindle extends out of the front end cover of the housing for connecting to the lock cylinder inside the door, and the base of the gearbox extends outward from the rear end cover of the housing for mounting a rotating handle.

[0008] Preferably, it also includes an elastic wave ring located at the front end of the transmission component of the gearbox, used to separate the spindle from the gearbox.

[0009] Preferably, at the connection between the input shaft section and the output shaft section of the mandrel, a driven grinding disc is provided radially for meshing with the driving grinding disc on the transmission component of the gearbox.

[0010] Preferably, the outer and inner diameters of the driving grinding disc of the transmission component are substantially the same as the outer and inner diameters of the driven grinding disc, respectively, so that the driving and driven grinding discs of the transmission component are fully engaged.

[0011] Preferably, the outer surface of the transmission component, located around the active grinding disc, is provided with an annular step, which is adapted to the elastic wave ring.

[0012] Preferably, the inner ring of the rotating shaft of the gearbox has radially inwardly extending internal teeth; the outer surface of the input shaft section of the spindle has radially outwardly extending external teeth; wherein, the internal teeth of the rotating shaft and the external teeth of the input shaft section of the spindle form a pivot connection for transmitting the torque generated by the motor of the gearbox to the spindle.

[0013] Preferably, both the external teeth and the internal teeth are provided in pairs, and are distributed at intervals along their circumference.

[0014] Preferably, a torsion spring is provided between the rear end cover of the housing and the base of the gearbox for resetting the gearbox relative to the housing during rotation.

[0015] Preferably, a bushing is provided between the inner wall of the front through hole on the front end cover of the housing and the mandrel, so that the mandrel can rotate relative to the housing.

[0016] Preferably, the centerlines of the gearbox, the elastic wave ring, the spindle, and the rotating handle coincide.

[0017] The beneficial effects of this utility model are:

[0018] This utility model discloses a smart lock handle integrating a clutch transmission mechanism. It uses a pivotal mechanism formed by the rotating shaft of the gearbox and the spindle to transmit the torque of the motor of the gearbox to the lock cylinder for electronic unlocking or locking of the smart door lock. It also uses a rotating handle to drive the transmission component of the gearbox to mesh with the spindle, thereby rotating the spindle and realizing manual unlocking of the smart door lock. The overall structure of the smart lock handle has a high degree of integration, good stability of clutch transmission operation, and a modular structure that allows for non-destructive clutch installation. It is also easy to install, greatly reducing the aftermarket cost of the smart lock. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an exploded structural diagram of the clutch transmission mechanism according to an embodiment of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of the smart lock handle according to an embodiment of the present invention;

[0022] Figure 3 This is an exploded structural diagram of the smart lock handle according to an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the gearbox and spindle of the clutch transmission mechanism according to an embodiment of this utility model;

[0024] Figure 5 This is an exploded structural diagram of the gearbox of the clutch transmission mechanism according to an embodiment of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the spindle of the clutch transmission mechanism according to an embodiment of this utility model;

[0026] Figure 7 This is a schematic diagram of the transmission component of the gearbox in the clutch transmission mechanism of this utility model embodiment;

[0027] Figure 8 This is a schematic diagram of the rotating shaft of the gearbox in the clutch transmission mechanism of this utility model embodiment;

[0028] Figure 9 This is a schematic diagram of the gearbox and spindle of the clutch transmission mechanism according to an embodiment of this utility model;

[0029] Figures 10a-10e This is a schematic diagram of the working state of the pivot mechanism consisting of the spindle and rotating parts of the smart door lock according to an embodiment of the present invention.

[0030] Reference numerals: Handle seat 100; Clutch transmission mechanism 200; Housing 1; Front cover 11; Front through hole 111; Rear cover 12; Rear through hole 121; Gearbox 2; Rotating shaft 21; Internal gear 211; Base 22; Transmission component 23; Driving grinding disc 231; Annular step 232; Bearing 24; Gear set 25; Spindle 3; Input shaft section 31; External gear 311; Output shaft section 32; Driven grinding disc 33; Rotary handle 4; Elastic wave coil 5; Torsion spring 6; Bushing 7. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1 , Figure 2 and Figure 3A smart lock handle integrating a clutch transmission mechanism includes: a handle base 100 mounted on the back panel of a door, and a clutch transmission mechanism 200 mounted on the handle base 100. The clutch transmission mechanism 200 includes a housing 1, a gearbox 2, a spindle 3, and a rotary handle 4. The housing 1 consists of a front cover 11 and a rear cover 12, which are fastened together to form a receiving cavity in the housing 1. A front through hole 111 and a rear through hole 121 are respectively provided at the midpoint between the front cover 11 and the rear cover 12, and the central axes of the front through hole 111 and the rear through hole 121 coincide. The rotating shaft 21 of gearbox 2 is pivotally connected to the input shaft section 31 of spindle 3, that is, the rotating shaft 21 of gearbox 2 is axially connected to the input shaft section 31 of spindle 3; the output shaft section 32 of spindle 3 extends out of the front end cover 11 of housing 1 and is used to connect to the lock cylinder inside the door; the base 22 of gearbox 2 extends outward from the rear through hole 121 of the rear end cover 12 of housing 1; a rotating handle 4 is fitted on the base 22; when the rotating handle 4 is rotated, it can drive gearbox 2 to move forward and rotate. A torsion spring 6 (e.g., ...) is provided between the rear end cover 12 of housing 1 and the base 22 of gearbox 2. Figure 6 This is used for the rotational reset of the gearbox 2 relative to the housing 1. In this embodiment, the axis lines of the gearbox 2, elastic wave ring 5, spindle 3 and rotary handle 4 coincide, resulting in high power conversion efficiency. The electric and manual clutches of the clutch transmission mechanism 200 are integrated into one unit and fixedly installed on the back panel of the door through the handle seat 100, which can realize the installation of the door lock clutch without damage, effectively reducing the post-installation cost of the smart lock.

[0033] like Figure 1 , Figure 4 and Figure 5 As shown, the elastic wave ring 5 is located between the front end of the transmission component 23 of the gearbox 2 and the inner wall of the front cover 11 of the housing 1. When the elastic wave ring 5 elastically resets, it can separate the spindle 3 from the gearbox 2. The gearbox 2 includes a base 22, and a motor (not shown in the figure) is installed inside the base 22. The output spindle of the motor is connected to the input end of the gear set 25, and the output end of the gear set 25 is connected to the rotating shaft 21. When the motor is energized and rotates, the torque is output through the rotating component 21 after being transmitted through the gear set 25.

[0034] The transmission component 23 has a ring-shaped structure and is located at the front end of the gearbox 2. A bearing 24 is provided between the inner ring of the transmission component 23 and the outer ring of the rotating shaft 21, thereby realizing the rotatable connection between the transmission component 23 and the rotating component 21 and ensuring that the transmission component 23 and the rotating component 21 are assembled without interference. The specific structural form of the gearbox 2 in this embodiment can be implemented using existing technology, so it will not be described in detail here.

[0035] like Figure 1 , Figure 4 , Figure 5 and Figure 6As shown, the spindle 3 includes an input shaft section 31, an output shaft section 32, and a driven grinding disc 33, all integrally formed. A bushing 7 is provided between the output shaft section 32 of the spindle 3 and the inner wall of the front through hole 111 on the front end cover 11 of the housing 1, allowing the spindle 3 to rotate relative to the housing 1. The input shaft section 31 and the driven grinding disc 33 are located within the receiving cavity of the housing 1. The output shaft section 32 extends outward from the front through hole 111 of the front end cover 11 of the housing 1, and its distal end has a square hole 321 along the axis of the spindle 3. The square hole 321 is used to insert one end of a square rod, and the other end of the square rod is connected to the lock cylinder located inside the door. In this embodiment, during the post-assembly of the smart lock handle, only the end of the square rod needs to be inserted into the lock cylinder inside the door, thus completing the non-destructive installation of the handle. On the input shaft section 31 of the spindle 3, two external teeth 311 extend radially outward and are spaced apart circumferentially along the input shaft section 31. The driven grinding disc 33 is located at the connection between the output shaft section 32 and the input shaft section 31, and is used to mesh the transmission component 23 and the spindle 3 of the gearbox 2. The outer diameter of the driven grinding disc 33 is larger than the outer diameter of the input shaft section 31 and the outer diameter of the output shaft section 32. The outer diameter of the driven grinding disc 33 of the spindle 3 is basically the same as the outer diameter of the driving grinding disc 231 of the transmission component 23, and the inner diameter of the driven grinding disc 33 of the spindle 3 is basically the same as the inner diameter of the driving grinding disc 231 of the transmission component 23, which facilitates the complete meshing of the driving grinding disc 231 and the driven grinding disc 33.

[0036] like Figure 4 and Figure 7 As shown, an annular step 232 is provided at the edge of the outer surface of the transmission component 23, around the driving grinding disc 231. The annular step 232 is adapted to the elastic wave ring 5. A locking block 233 extends outward from the edge of the inner side of the transmission component 23. This locking block 233 engages with a slot on the gearbox 2 to fix the transmission component 23 and the main body of the gearbox 2 together. The outer surface of the driving grinding disc 231 of the transmission component 23 is higher than the plane of the annular step 232, that is, the driving grinding disc 231 protrudes from the plane of the annular step 232. When the elastic wave ring 5 is compressed along its central axis, the tooth surface of the driving grinding disc 231 can protrude outside the inner ring of the elastic wave ring 5 so that the driving grinding disc 231 meshes with the driven grinding disc 33 of the spindle 3. The inner ring diameter of the elastic wave ring 5 is basically the same as the inner ring diameter of the annular step 232, and the outer ring diameter of the elastic wave ring 5 is basically the same as the outer ring diameter of the annular step 232.

[0037] like Figure 8 and Figure 9As shown, the inner ring of the rotating shaft 21 of the gearbox 2 has two radially inwardly extending internal teeth 211, spaced apart circumferentially. The rotating shaft 21 is used to transmit the rotational torque of the motor of the gearbox 2 to the outside via the gear set 25. The outer surface of the input shaft section 31 of the spindle 3 has two radially outwardly extending external teeth 311, spaced apart circumferentially. The internal teeth 211 of the rotating shaft 21 of the gearbox 2 are pivotally connected to the external teeth 311 of the input shaft section 31 of the spindle 3, enabling the transmission of the torque generated by the motor of the gearbox 2 to the spindle 3. The rotation of the spindle 3 is connected to the lock cylinder via a square rod, enabling electric locking or unlocking.

[0038] like Figures 10a-10e This is a schematic diagram of the working state of the pivot mechanism composed of the mandrel 3 and the rotating shaft 21 in this embodiment. The two external teeth 311 of the mandrel 3 are inserted into the internal teeth 211 of the rotating shaft 21 on the gearbox 2 to form a pivot mechanism. The two external teeth 311 of the mandrel 3 and the two internal teeth 211 of the rotating shaft 21 are located in the same plane, thereby forming an abutting fitting pair. Among the two internal teeth 211 of the rotating shaft 21, the two side walls of one of the internal teeth 211 are A1 and A2, and the two side walls of the other internal tooth 211 are A3 and A4, respectively. Among the two external teeth 311 of the mandrel 3, the two side walls of one of the external teeth 311 are B1 and B2, respectively, and the two side walls of the other external tooth 311 are B3 and B4, respectively. Figure 10a In the locked working position, the sidewalls of the two internal teeth 211 are not in contact with the sidewalls of the two external teeth 311; for example Figure 10b As the gearbox 2 drives the internal gear 211 of the rotating shaft 21 to rotate clockwise, after the rotating shaft 21 has traveled a certain distance without load, the side walls A1 and A4 of the internal gear 211 of the rotating shaft 21 abut against the side walls B2 and B4 of the external gear 311 of the spindle 3, respectively. Figure 10b As shown in A1B2, A4B3; Figure 10c The rotating shaft 21 continues to rotate clockwise, driving the external teeth 311 of the spindle 3 to rotate synchronously clockwise, thus unlocking the spindle.

[0039] Next, as Figure 10d As shown, the gearbox 2 drives the internal gear 211 of the rotating shaft 21 to rotate counterclockwise until... Figure 10e In the working position, after the rotating shaft 21 has been unloaded for a certain stroke, the side walls A2 and A3 of the internal teeth 211 of the rotating shaft 21 abut against the side walls B4 and B1 of the external teeth 311 of the spindle 3, respectively. Figure 10d As shown in A2B4 and A3B1; Figure 10e The rotating shaft 21 continues to rotate counterclockwise, driving the external teeth 311 of the spindle 3 to rotate synchronously counterclockwise, thus achieving locking.

[0040] In the pivotal mechanism formed by the spindle 3 and the rotating shaft 21, when the gearbox 2 drives the rotating shaft 21 to switch between clockwise and counterclockwise rotation, the gearbox 2 first performs a certain stroke of no-load operation, and then drives the spindle 3 to rotate after pivoting with the spindle 3. This helps to solve the problem of excessive load current when the motor 21 of the gearbox 2 starts, extends the service life of the clutch transmission mechanism, and enhances the reliability of the operation.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A smart lock handle integrating a clutch transmission mechanism, comprising a handle base (100) mounted on the back panel of a door, characterized in that, The handle seat (100) is equipped with a clutch transmission mechanism (200); the clutch transmission mechanism (200) includes a housing (1), a gearbox (2) and a spindle (3). The rotating shaft (21) of the gearbox (2) is pivotally connected to the input shaft section (31) of the spindle (3). The output shaft section (32) of the spindle (3) extends out of the front end cover (11) of the housing (1) for connecting the lock cylinder inside the door. The base (22) of the gearbox (2) extends outward from the rear end cover (12) of the housing (1) for mounting the rotating handle (4).

2. The smart lock handle with integrated clutch transmission mechanism as described in claim 1, characterized in that: It also includes an elastic wave coil (5), located at the front end of the transmission component (23) of the gearbox (2), for separating the spindle (3) from the gearbox (2).

3. The smart lock handle with integrated clutch transmission mechanism as described in claim 2, characterized in that: At the connection between the input shaft section (31) and the output shaft section (32) of the spindle (3), a driven grinding disc (33) is provided radially for meshing with the driving grinding disc (231) on the transmission component (23) of the gearbox (2).

4. The smart lock handle with integrated clutch transmission mechanism as described in claim 3, characterized in that: The outer and inner diameters of the active grinding disc (231) of the transmission component (23) are basically the same as the outer and inner diameters of the driven grinding disc (33), respectively, so that the active grinding disc (231) and the driven grinding disc (33) of the transmission component (23) are fully engaged.

5. The smart lock handle with integrated clutch transmission mechanism as described in claim 4, characterized in that: The outer surface of the transmission component (23) is located around the outside of the active grinding disc (231) and is provided with an annular step (232), which is adapted to the elastic wave ring (5).

6. The smart lock handle with integrated clutch transmission mechanism as described in claim 5, characterized in that: The inner ring of the rotating shaft (21) of the gearbox (2) has radially inwardly extending internal teeth (211); the outer surface of the input shaft section (31) of the spindle (3) has radially outwardly extending external teeth (311); wherein the internal teeth (211) of the rotating shaft (21) and the external teeth (311) of the input shaft section (31) of the spindle (3) form a pivot connection for transmitting the torque generated by the motor of the gearbox (2) to the spindle (3).

7. The smart lock handle with integrated clutch transmission mechanism as described in claim 6, characterized in that: The external teeth (311) and internal teeth (211) are each provided in pairs, and are distributed at intervals along their circumference.

8. The smart lock handle with integrated clutch transmission mechanism as described in claim 7, characterized in that: A torsion spring (6) is provided between the rear end cover (12) of the housing (1) and the base (22) of the gearbox (2) for the gearbox (2) to rotate and reset relative to the housing (1).

9. The smart lock handle with integrated clutch transmission mechanism as described in claim 8, characterized in that: A bushing (7) is provided between the inner wall of the front through hole (111) on the front end cover (11) of the housing (1) and the spindle (3), so that the spindle (3) can rotate relative to the housing (1).

10. The smart lock handle with integrated clutch transmission mechanism as described in claim 9, characterized in that: The centerlines of the gearbox (2), elastic wave ring (5), spindle (3) and rotating handle (4) coincide.

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