Intelligent lock for indoor door handle

Abstract

The utility model relates to an indoor door handle intelligent lock. An outer handle assembly comprises an outer handle shell and a glass screen buckled on the outer handle shell; a motor assembly, a mechanical lock assembly and a control circuit board are arranged in the outer handle shell, the motor assembly comprises a motor clutch device and a lithium battery, and the motor clutch device and the mechanical lock body are connected in a clamped mode; the mechanical lock assembly comprises a mechanical lock cylinder and a trigger rod, one end of the trigger rod abuts against the mechanical lock cylinder, the other end of the trigger rod is located on one side of the motor clutch device, and the mechanical lock cylinder drives the trigger rod to adjust the state of the motor clutch device; the control circuit board is provided with a fingerprint recognition module and a digital coded lock, the control circuit board is electrically connected with the motor clutch device and adjusts the state of the motor clutch device, the intelligent lock function is directly integrated on the outer handle assembly, the overall structure is simple, new tapping or containing space cutting is not needed, the installation mode is the same as that of an original mechanical lock, and direct lossless replacement can be achieved; the operation is very convenient.

Description

Technical Field

[0001] The present invention relates to the field of smart locks, and in particular to a smart lock for indoor door handles. Background Art

[0002] Most of the existing smart locks for interior doors are large in size and require various holes to be dug during installation, making installation difficult and requiring certain door thickness. In addition, many smart locks for interior doors do not require mechanical keys.

[0003] Fingerprint locks controlled by electricity have the possibility of error. Relatively speaking, the mechanical part is much more stable. Keeping the mechanical key of the lock as a backup way to open the door at home can open the door in time and facilitate maintenance when there is a problem with the electronic part of the door lock. However, it is not easy to set up a mechanical lock in the limited space of the handle fingerprint lock. The mechanical lock must meet the security requirements and cannot affect the overall appearance. It is necessary to design a compact handle smart lock that has both mechanical lock and smart password or fingerprint unlocking. Summary of the invention

[0004] Based on this, it is necessary to propose an indoor door handle smart lock to address the problems of traditional smart locks being large in size, occupying a large space, and being inconvenient to install.

[0005] The present invention provides an indoor door handle smart lock, comprising an outer handle assembly, an inner handle assembly and a mechanical lock body arranged between the outer handle assembly and the inner handle assembly, wherein the outer handle assembly comprises an outer handle shell and a glass screen buckled on the outer handle shell;

[0006] The outer handle shell is provided with a motor assembly, a mechanical lock assembly and a control circuit board, the motor assembly includes a motor clutch device and a lithium battery, and the motor clutch device is clamped with the mechanical lock body;

[0007] The mechanical lock assembly includes a mechanical lock core and a trigger rod, one end of the trigger rod abuts against the mechanical lock core, and the other end of the trigger rod is located on one side of the motor clutch device, and the mechanical lock core drives the trigger rod to adjust the state of the motor clutch device;

[0008] The control circuit board is provided with a fingerprint identification module and a digital password lock, and the control circuit board is electrically connected to and adjusts the state of the motor clutch device.

[0009] In one embodiment, a telescopic rod is provided at the end of the mechanical lock core, and the mechanical lock core switch controls the movement of the telescopic rod.

[0010] In one embodiment, the trigger rod includes a connecting plate, a movable main rod and a tilting plate, and the connecting plate is fixed to the telescopic rod by screws.

[0011] In one embodiment, the motor clutch device comprises a motor, a clutch device and a motor fixing plate, the upper end of the clutch device is connected to a mechanical rod, and the inclined surface of the inclined plate abuts against the mechanical rod.

[0012] In one embodiment, the outer handle shell is further provided with a sliding groove for cooperating with the moving main rod.

[0013] In one embodiment, a speaker slot is further provided in the outer handle shell, and a speaker is provided in the speaker slot.

[0014] In one embodiment, the control circuit board includes an upper plate and a lower plate, and the fingerprint recognition module is fixed on the upper plate.

[0015] In one embodiment, the lower panel is provided with an LED indicator light, a motor interface, a battery interface, a speaker interface and a charging interface.

[0016] In one embodiment, the inner handle assembly includes an inner handle shell and an inner handle cover, the inner handle shell is provided with an inner handle cover and an inner handle retaining spring, and the inner handle retaining spring fixes the inner handle cover to the inner handle shell.

[0017] In one embodiment, an inner handle torsion spring and an inner handle torsion spring pressure plate are disposed inside the inner handle cover, and the inner handle torsion spring pressure plate fixes the inner handle torsion spring to the inner handle cover.

[0018] Technical advantages of the present invention:

[0019] 1. The smart lock function is directly integrated on the outer handle assembly. The overall structure is simple and does not require new holes or cutting to accommodate space. The installation method is the same as the original mechanical lock, and it can be directly replaced without loss, which is very convenient.

[0020] 2. The smart lock for interior doors based on the handle shape includes password unlocking, fingerprint unlocking and mechanical unlocking. It can set up multiple unlocking methods and retain the mechanical key function. Even in the event of power outage or circuit board error, the lock can be opened by the key. It also has a built-in lithium battery with a long battery life and can be charged without disassembly and replacement of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention, so that other features, purposes and advantages of the present invention become more obvious. The accompanying drawings and descriptions of the exemplary embodiments of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0022] Figure 1 This is a schematic diagram of the overall structure of the indoor door handle smart lock provided by the present invention.

[0023] Figure 2This is a schematic diagram of the internal structure of the outer handle assembly provided by the present invention.

[0024] Figure 3 This is an exploded view of the overall structure of the outer handle assembly provided by the present invention.

[0025] Figure 4 This is a schematic diagram of the internal structure of the outer handle shell provided by the present invention.

[0026] Figure 5 A schematic diagram of the unlocking principle of the mechanical lock assembly provided by the present invention.

[0027] Figure 6 This is a schematic structural diagram of the motor assembly provided by the present invention.

[0028] Figure 7 This is a schematic diagram of the structure of the control circuit board provided by the present invention.

[0029] Figure 8 This is an exploded view of the overall structure of the inner handle assembly provided by the present invention.

[0030] Figure markings: outer handle assembly 1; outer handle shell 11; glass screen 12; inner handle assembly 2; inner handle assembly 2; inner handle shell 21; inner handle cover 22, inner handle cover 23; inner handle torsion spring 24; inner handle torsion spring pressure plate 25; motor assembly 3; motor clutch device 31; motor 311; clutch device 312; mechanical rod 3121; motor fixing plate 313; lithium battery 32; mechanical lock assembly 4; mechanical lock core 41; telescopic rod 411; sliding groove 420; trigger rod 42; connecting plate 421; moving main rod 422; tilting plate 423; control circuit board 5; upper plate 501; lower plate 502; fingerprint recognition module 51; digital password lock 52; LED indicator light 53; motor interface 54; speaker interface 55; charging interface 56; battery interface 57; speaker 6; speaker slot 60. DETAILED DESCRIPTION

[0031] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0032] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0033] See also Figures 1 to 8 As shown, the utility model proposes an indoor door handle smart lock

[0034] An indoor door handle smart lock comprises an outer handle assembly 1, an inner handle assembly 2 and a mechanical lock body arranged between the outer handle assembly 1 and the inner handle assembly 2. The mechanical lock body is a commonly used mechanical door lock part, which is arranged on the door body. The outer handle assembly 1 and the inner handle assembly 2 control the opening and locking of the door body and the door frame by rotating the rotating rod on the mechanical lock body.

[0035] Specifically, the outer handle assembly 1 includes an outer handle shell 11 and a glass screen 12 buckled on the outer handle shell 11. The glass screen 12 is used to input and display the digital password on the control circuit board 5 to realize the function of password input unlocking.

[0036] like Figure 2-3 As shown: a motor assembly 3, a mechanical lock assembly 4 and a control circuit board 5 are arranged in the outer handle shell 11, the motor assembly 3 includes a motor clutch device 31 and a lithium battery 32, a fingerprint recognition module 51 and a digital password lock 52 are arranged on the control circuit board 5, and the control circuit board 5 is electrically connected to and adjusts the state of the motor clutch device 31.

[0037] The motor clutch device 31 is engaged with the mechanical lock body, and the motor clutch device 31 is engaged with the mechanical lock body in a normal state. When there is no password unlocking, fingerprint unlocking or mechanical key unlocking, the outer handle shell 11 cannot be pressed, the mechanical door lock cannot be rotated, and the door cannot be opened.

[0038] like Figure 4-6 It is a schematic diagram of the unlocking principles. The mechanical lock assembly 4 includes a mechanical lock core 41 and a trigger rod 42. One end of the trigger rod 42 is against the mechanical lock core 41, and the other end of the trigger rod 42 is on one side of the motor clutch device 31. The mechanical lock core 41 drives the trigger rod 42 to adjust the state of the motor clutch device 31.

[0039] A telescopic rod 411 is provided at the end of the mechanical lock core 41. When the mechanical lock core 41 is unlocked under the control of a key, the length of the telescopic rod 411 changes, so that the mechanical lock core 41 switch controls the movement of the telescopic rod 411. Specifically, when the key rotates the mechanical lock core 41, the telescopic rod 411 is pushed to extend.

[0040] The trigger rod 42 includes a connecting plate 421, a moving main rod 422 and an inclined plate 423. The connecting plate 421 is fixed to the telescopic rod 411 by screws. In order to enable the trigger rod 42 to be accurately triggered along a specified track and abut against the motor clutch device 31, a sliding groove 420 for cooperating with the moving main rod 422 is provided on the outer handle shell 11, so that the moving main rod 422 can only move left and right in the sliding groove 420.

[0041] The motor clutch device 31 includes a motor 311 , a clutch device 312 and a motor fixing plate 313 . The motor 311 is controlled by a control circuit board 5 . The upper end of the clutch device 312 is connected to a mechanical rod 3121 , and the inclined surface of the inclined plate 423 abuts against the mechanical rod 3121 .

[0042] In addition to the above technical features, the utility model is also provided with a speaker slot 60 in the outer handle shell 11, and a speaker 6 is provided in the speaker slot 60. When an error occurs during the fingerprint or password input process, the household owner is prompted, or after the input is correct, a prompt is given to unlock the door.

[0043] like Figure 7 As shown, the main circuits and electrical components of the utility model are mainly concentrated in the control circuit board 5, on which a fingerprint recognition module 51 and a digital password lock 52 are provided. The control circuit board 5 is electrically connected to and adjusts the state of the motor clutch device 31. The control circuit board 5 includes an upper plate 501 and a lower plate 502. The fingerprint recognition module 51 is fixed on the upper plate 501, and the lower plate 502 is provided with an LED indicator light 53, a motor interface 54, a speaker interface 55, a charging interface 56 and a battery interface 57.

[0044] Since the inner handle assembly 2 is on the inside of the room, no other unlocking method is required. The mechanical lock body on the door can be directly pressed and rotated to unlock the door. The overall external shape of the inner handle assembly 2 and the outer handle assembly 1 is the same, and the structure is simpler.

[0045] like Figure 8 As shown: Specifically, the inner handle assembly 2 includes an inner handle shell 21 and an inner handle cover 22. The inner handle shell 21 is provided with an inner handle cover 23 and an inner handle retaining spring 26. The inner handle retaining spring 26 fixes the inner handle cover 23 to the inner handle shell 21. The inner handle cover 23 is provided with an inner handle torsion spring 24 and an inner handle torsion spring pressure plate 25. The inner handle torsion spring 24 mainly provides a restoring torque for the inner handle shell 21. When a person in the room presses the inner handle shell 21 to rotate the mechanical lock body and open the door, the inner handle shell 21 is restored to its original horizontal position. At the same time, the inner handle torsion spring pressure plate 25 fixes the inner handle torsion spring 24 to the inner handle cover 23.

[0046] The utility model designs an intelligent lock integrated into a door handle, which has the functions of opening the door by fingerprint, password and key, and an IC card recognition module can be added to the control circuit board 5, so that the lock can be opened by swiping the card.

[0047] There are two main unlocking principles:

[0048] The first method is to unlock the door by fingerprint or password input. When the correct fingerprint is input into the fingerprint recognition module 51, or the power-on password is input into the digital password lock 52, the control circuit board 5 recognizes and sends an unlocking command, that is, a release current signal is sent to the motor 311. The motor 311 rotates to control the clutch device 312 to separate from the mechanical lock body, and the owner can easily press the outer handle assembly 1 to open the door.

[0049] The second method is to unlock the door by a mechanical key. The householder inserts the key into the mechanical lock cylinder 41 and rotates it, thereby pushing the telescopic rod 411, driving the connecting plate 421, the movable main rod 422 and the inclined plate 423 to move horizontally, and the inclined plate 423 squeezes the mechanical rod 3121 to separate the clutch device 312 and the mechanical lock body. The householder can also easily press the outer handle assembly 1 to open the door.

[0050] In summary, the utility model can realize a smart lock for an indoor door based on a handle shape, which can be directly replaced and installed without loss, has a built-in lithium battery, can be charged, and does not require disassembly and replacement of the battery, while retaining the function of a mechanical key.

[0051] The technical features of the above-described embodiments may be arbitrarily combined, and the execution order of the method steps is not limited. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An indoor door handle smart lock, comprising an outer handle assembly (1), an inner handle assembly (2) and a mechanical lock body arranged between the outer handle assembly (1) and the inner handle assembly (2), characterized in that: The outer handle assembly (1) comprises an outer handle shell (11) and a glass screen (12) buckled onto the outer handle shell (11); The outer handle shell (11) is provided with a motor assembly (3), a mechanical lock assembly (4) and a control circuit board (5); the motor assembly (3) comprises a motor clutch device (31) and a lithium battery (32); the motor clutch device (31) and the mechanical lock body are clamped together; The mechanical lock assembly (4) comprises a mechanical lock core (41) and a trigger rod (42), one end of the trigger rod (42) abuts against the mechanical lock core (41), and the other end of the trigger rod (42) is located on one side of the motor clutch device (31), and the mechanical lock core (41) drives the trigger rod (42) to adjust the state of the motor clutch device (31); The control circuit board (5) is provided with a fingerprint identification module (51) and a digital password lock (52), and the control circuit board (5) is electrically connected to and adjusts the state of the motor clutch device (31).

2. The indoor door handle smart lock according to claim 1, characterized in that: A telescopic rod (411) is provided at the end of the mechanical lock core (41), and the switch of the mechanical lock core (41) controls the movement of the telescopic rod (411).

3. The indoor door handle smart lock according to claim 2, characterized in that: The trigger rod (42) comprises a connecting plate (421), a movable main rod (422) and an inclined plate (423); the connecting plate (421) is fixed to the telescopic rod (411) by means of screws.

4. The indoor door handle smart lock according to claim 3, characterized in that: The motor clutch device (31) comprises a motor (311), a clutch device (312) and a motor fixing plate (313); the upper end of the clutch device (312) is connected to a mechanical rod (3121), and the inclined surface of the inclined plate (423) abuts against the mechanical rod (3121).

5. The indoor door handle smart lock according to claim 3, characterized in that: The outer handle shell (11) is also provided with a sliding groove (420) for cooperating with the moving main rod (422).

6. The indoor door handle smart lock according to claim 1, characterized in that: A speaker slot (60) is also provided in the outer handle shell (11), and a speaker (6) is provided in the speaker slot (60).

7. The indoor door handle smart lock according to claim 1, characterized in that: The control circuit board (5) comprises an upper board (501) and a lower board (502), and the fingerprint recognition module (51) is fixed on the upper board (501).

8. The indoor door handle smart lock according to claim 7, characterized in that: The lower plate (502) is provided with an LED indicator light (53), a motor interface (54), a speaker interface (55), a charging interface (56) and a battery interface (57).

9. The indoor door handle smart lock according to claim 8, characterized in that: The inner handle assembly (2) comprises an inner handle shell (21) and an inner handle cover (22); the inner handle shell (21) is provided with an inner handle cover (23) and an inner handle retaining spring (26); the inner handle retaining spring (26) fixes the inner handle cover (23) to the inner handle shell (21).

10. The indoor door handle smart lock according to claim 9, characterized in that: An inner handle torsion spring (24) and an inner handle torsion spring pressure plate (25) are arranged inside the inner handle cover (23), and the inner handle torsion spring pressure plate (25) fixes the inner handle torsion spring (24) on the inner handle cover (23).

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