Lock cylinder capable of shutting down motor in time after electric unlocking and locking operation is completed

Abstract

A lock cylinder capable of timely stopping a motor after electric unlocking and locking operation is completed comprises a lock cylinder body and a control box, the lock cylinder body comprises a lock cylinder shifting wheel and a lock cylinder rotating shaft, one end of the lock cylinder rotating shaft is in transmission fit with the lock cylinder shifting wheel, and the other end of the lock cylinder rotating shaft extends into the control box. An unlocking rotating shaft in transmission connection with the lock cylinder rotating shaft and an electric driving device used for driving the unlocking rotating shaft are arranged in the control box, the electric driving device comprises a main board, a motor, a gear transmission unit, a grating disc and a laser sensor, and the gear transmission unit is connected between the motor and the unlocking rotating shaft; the grating disc is connected to the gear transmission unit and can rotate or stop along with the gear transmission unit, the laser sensor is used for detecting a rotation or stop signal of the grating disc and transmitting the detection signal to the mainboard, and when the laser sensor detects the stop signal of the grating disc, the mainboard immediately controls the motor to stop working. The motor can be prevented from continuously working in a locked-rotor state, and the service life of the motor and the service life of a battery are not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a lock core capable of shutting down a motor in time after electric opening and closing operations are completed. Background Art

[0002] The applicant has previously applied for a utility model patent for a fully automatic indoor door lock, with publication number CN218843999U, which includes a lock core and a control box. The lock core includes a lock core housing, a lock core dial, a lock core shaft and a lock core lock head. One end of the lock core housing is connected to the control box, the lock core shaft is arranged on a side of the lock core housing close to the control box, and the lock core lock head is arranged on a side of the lock core housing away from the control box. The lock core dial is arranged between the lock core shaft and the lock core lock head and can switch and cooperate with the two. A drive motor, a bevel gear transmission mechanism and an unlocking shaft are provided in the control box, and the unlocking shaft is transmission-connected to the lock core shaft. The indoor door lock can realize electric unlocking and electric locking through the forward and reverse driving of the driving motor, but the time of electric unlocking and electric locking is set by the system timer, that is, the driving motor will stop working only when the electric unlocking or electric locking time set by the system is reached. Since there are many types of lock bodies on the market that are used in conjunction with the lock cylinder dial wheel in the indoor door lock, the actual electric unlocking and electric locking times of different lock body types are also different. Therefore, for the aforementioned timed electric opening and locking structure, it often happens that the electric unlocking or electric locking action is actually completed, but because the electric opening or locking time set by the system has not yet been reached, the driving motor cannot stop working in time, and the driving motor will continue to work for a period of time in a blocked state. In the long run, it will have a great negative impact on the service life of the driving motor and the battery, and therefore needs to be improved. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a lock core that can shut down the motor in time after the electric opening and locking operations are completed, thereby preventing the motor from continuing to work in a blocked state, thereby ensuring that the service life of the motor and the battery is not affected.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A lock core that can shut down a motor in time after an electric opening and closing operation is completed comprises a lock core body and a control box, wherein the lock core body comprises a lock core housing, a lock core dial wheel and a lock core rotating shaft, wherein one end of the lock core housing is connected to the control box, a lock core dial wheel mounting groove and a lock core rotating shaft mounting hole are provided on the lock core housing, one end of the lock core rotating shaft mounting hole is communicated with the lock core dial wheel mounting groove, and the other end is communicated with the interior of the control box, the lock core dial wheel is arranged in the lock core dial wheel mounting groove, the lock core rotating shaft is arranged in the lock core rotating shaft mounting hole, and one end of the lock core rotating shaft is matched with the lock core dial wheel transmission, and the other end extends into the interior of the control box, and the interior of the control box is provided with a lock core dial wheel mounting groove and a lock core rotating shaft mounting hole. The inserted end of the lock core shaft is transmission-connected to an unlocking shaft and an electric drive device for driving the unlocking shaft to rotate in an unlocking direction or a locking direction. The electric drive device includes a main board, a motor, a gear transmission unit, a grating disk and a laser sensor. The gear transmission unit is connected between the motor and the unlocking shaft. The grating disk is connected to the gear transmission unit and can rotate or stop with the gear transmission unit. The laser sensor is used to detect the rotation or stop signal of the grating disk and transmit the detection signal to the main board. When the laser sensor detects the stop signal of the grating disk, the main board immediately controls the motor to stop working.

[0006] Furthermore, the laser sensor includes a sensor board electrically connected to the main board, and a laser emitting end and a laser receiving end relatively arranged on one side of the sensor board, the grating disk is located between the laser emitting end and the laser receiving end, and when the grating disk rotates following the gear transmission unit, the laser receiving end cyclically switches between being able to receive the laser emitted by the laser emitting end and being unable to receive the laser emitted by the laser emitting end, and when the grating disk stops following the gear transmission unit, the laser receiving end stagnates in a state of being able to receive the laser emitted by the laser emitting end or being unable to receive the laser emitted by the laser emitting end.

[0007] Furthermore, the grating disk includes an inner ring portion, an outer ring portion and a plurality of shading portions spaced apart between the inner ring portion and the outer ring portion, and a light-transmitting hole is formed between two adjacent light-transmitting portions. When the light-transmitting portion is facing the laser emitting end and the laser receiving end, the laser receiving end cannot receive the laser emitted by the laser emitting end. When the light-transmitting hole is facing the laser emitting end and the laser receiving end, the laser receiving end can receive the laser emitted by the laser emitting end.

[0008] Furthermore, the inner circumference of the inner ring portion is defined with a hexagonal connecting hole, one side of the inner ring portion is provided with a handle portion extending outwardly from the side end surface in a cylindrical shape, and the hexagonal connecting hole penetrates the handle portion axially.

[0009] Furthermore, the gear transmission unit includes a first large bevel gear, a second large bevel gear, a driving small bevel gear and three driven small bevel gears, the first large bevel gear and the second large bevel gear are arranged opposite to each other with an interval, and the first large bevel gear is close to the lock core housing, and the second large bevel gear is far away from the lock core housing, the driving small bevel gear and the three driven small bevel gears are evenly distributed between the first large bevel gear and the second large bevel gear in the circumferential direction, and the driving small bevel gear and the three driven small bevel gears are all meshed with the first large bevel gear and the second large bevel gear, the motor is connected to the driving small bevel gear, the unlocking shaft axially penetrates the first large bevel gear and the second large bevel gear and cooperates with the first large bevel gear, and the grating disk is coaxially connected to one of the driven small bevel gears.

[0010] Furthermore, a hexagonal connecting portion is coaxially provided on the outer side of the driven small bevel gear coaxially connected to the grating disk, and the grating disk is nested in the hexagonal connecting portion.

[0011] Furthermore, the electric drive device also includes an unlocking button and a locking button which are arranged on a surface of the control box that is away from the lock core housing and are electrically connected to the main board respectively.

[0012] Furthermore, the electric drive device also includes two 4.2V lithium batteries arranged inside the control box and electrically connected to the main board, and the two 4.2V lithium batteries are connected in series.

[0013] Furthermore, the electric drive device also includes a charging board arranged inside the control box and electrically connected to the main board, and the charging board is provided with a charging interface exposed on the surface of the control box on a side facing away from the lock core housing.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model connects the grating disk to the gear transmission unit on the one hand, so that the grating disk can rotate with the gear transmission unit when the lock core is electrically opened or locked, and stop with the gear transmission unit after the electric opening or locking operation is completed. On the other hand, the laser sensor is used to detect the rotation or stop signal of the grating disk. When the stop signal of the grating disk is detected, the main board is immediately used to control the motor to stop working, so that the motor can be shut down in time after the electric opening or locking operation is completed, avoiding the motor from continuing to work in a blocked state, thereby ensuring that the service life of the motor and the battery is not affected. The utility model has the advantages of simple and reliable structure, high detection accuracy, and long service life of the motor and the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a three-dimensional schematic diagram of a lock core capable of shutting down a motor in time after the electric opening and closing operations are completed.

[0017] Figure 2 The utility model is an exploded schematic diagram of a lock core capable of shutting down a motor in time after the electric opening and closing operations are completed.

[0018] Figure 3 It is an exploded view of the internal structure of the control box in the utility model.

[0019] Figure 4 It is a structural schematic diagram of the motor, gear transmission unit, grating disk and sensor in the utility model.

[0020] Figure 5 It is a structural schematic diagram of a grating disk in the utility model from one viewing angle.

[0021] Figure 6 It is a structural schematic diagram of the grating disk in the utility model from another perspective.

[0022] Figure 7 The utility model is a cross-sectional schematic diagram of a lock core capable of shutting down a motor in time after the electric opening and closing operations are completed. DETAILED DESCRIPTION

[0023] The utility model is further described in detail below with reference to the embodiments given in the accompanying drawings.

[0024] like Figures 1 to 7 As shown, the utility model provides a lock core that can shut down the motor in time after the electric opening and locking operations are completed, including a lock core body 1 and a control box 2, the lock core body 1 includes a lock core shell 11, a lock core dial wheel 12 and a lock core shaft 13, one end of the lock core shell 11 is connected to the control box 2, a lock core dial wheel mounting groove 111 and a lock core shaft mounting hole 112 are provided on the lock core shell 11, one end of the lock core shaft mounting hole 112 is connected to the lock core dial wheel mounting groove 111, and the other end is connected to the interior of the control box 2, the lock core dial wheel 12 is arranged in the lock core dial wheel mounting groove 111, the lock core shaft 13 is arranged in the lock core shaft mounting hole 112, and one end of the lock core shaft 13 is matched with the lock core dial wheel 12 in transmission, and the other end extends into the interior of the control box 2, the interior of the control box 2 is provided with an unlocking shaft 3 that is transmission-connected to the extending end of the lock core shaft 13 and an electric drive device 4 for driving the unlocking shaft 3 to rotate in an unlocking direction or a locking direction. Among them, the transmission matching structure between one end of the lock core shaft 13 and the lock core dial wheel 12 and the transmission connection structure between the unlocking shaft 3 and the insertion end of the lock core shaft 13 are prior art, and can be specifically designed with reference to the utility model patent No. CN218843999U described in the background technology, so this utility model will not be described in detail.

[0025] The electric drive device 4 includes a main board 41 , a motor 42 , a gear transmission unit 43 , a grating disk 44 and a laser sensor 45 .

[0026] The gear transmission unit 43 is connected between the motor 42 and the unlocking shaft 3. When working, the forward or reverse rotation of the motor 42 drives the unlocking shaft 3, the lock core shaft 13 and the lock core dial wheel 12 to rotate in the unlocking direction or the locking direction in turn through the transmission of the gear transmission unit 43, thereby realizing the electric unlocking or electric locking operation of the lock core.

[0027] The grating disk 44 is connected to the gear transmission unit 43 and can rotate or stop with the gear transmission unit 43. The laser sensor 45 is used to detect the rotation or stop signal of the grating disk 44 and transmit the detection signal to the main board 41. When the laser sensor 45 detects the stop signal of the grating disk 44, that is, when the aforementioned electric unlocking operation or electric locking operation is completed, the main board 41 immediately controls the motor 42 to stop working, so that the motor can be shut down in time after the electric opening and locking operation is completed, avoiding the motor from continuing to work in a blocked state, ensuring that the service life of the motor and the battery is not affected. In addition, since the determination of whether the electric opening and locking operation of the lock core is completed is achieved by detecting the motion state of the grating disk 44 connected to the gear transmission unit 43, not only is the detection accuracy high, but the structural design is also relatively simple.

[0028] In a preferred example of the utility model, the laser sensor 45 includes a sensor board 451 electrically connected to the main board 41 and a laser emitting end 452 and a laser receiving end 453 relatively arranged on one side of the sensor board 451. The grating disk 44 is located between the laser emitting end 452 and the laser receiving end 453 and can rotate relative to the laser emitting end 452 and the laser receiving end 453. When the grating disk 44 rotates following the gear transmission unit 43, the laser receiving end 453 cyclically switches between being able to receive the laser emitted by the laser emitting end 452 and being unable to receive the laser emitted by the laser emitting end 452, and thereby determines that the lock core is in the electric unlocking or electric locking operation process. When the grating disk 44 stops following the gear transmission unit 43, the laser receiving end 453 stagnates in a state where it can receive the laser emitted by the laser emitting end 452 or cannot receive the laser emitted by the laser emitting end 452, and thereby determines that the electric unlocking or electric locking operation of the lock core has been completed.

[0029] Furthermore, in this preferred example, the grating disk 44 includes an inner ring portion 441, an outer ring portion 442 and a plurality of shading portions 443 spaced apart between the inner ring portion 441 and the outer ring portion 442, and a light-transmitting hole 444 is formed between two adjacent light-transmitting portions 443. When the shading portion 443 faces the laser emitting end 452 and the laser receiving end 453, the laser receiving end 453 cannot receive the laser emitted by the laser emitting end 452. When the light-transmitting hole 444 faces the laser emitting end 452 and the laser receiving end 453, the laser receiving end 453 can receive the laser emitted by the laser emitting end 452.

[0030] Moreover, in this preferred embodiment, the inner circumference of the inner ring portion 441 is defined with a hexagonal connection hole 445, and a handle portion 446 extending outwardly in a cylindrical shape from the side end surface is provided on one side of the inner ring portion 441, and the hexagonal connection hole 445 axially penetrates the handle portion 446. The hexagonal connection hole 445 is provided to facilitate the connection between the grating disk 44 and the gear transmission unit 43, and the arrangement of the handle portion 446 can, on the one hand, facilitate the hand-holding operation of the grating disk 44 when connected to the gear transmission unit 43, and on the other hand, increase the depth of the hexagonal connection hole 445 to improve the stability of the connection.

[0031] In a preferred example of the present invention, the gear transmission unit 43 includes a first large bevel gear 431, a second large bevel gear 432, a driving small bevel gear 433 and three driven small bevel gears 434, the first large bevel gear 431 and the second large bevel gear 432 are arranged opposite to each other at intervals, and the first large bevel gear 431 is close to the lock core housing 11, and the second large bevel gear 432 is far away from the lock core housing 11, the driving small bevel gear 433 and the three driven small bevel gears 434 are evenly distributed between the first large bevel gear 431 and the second large bevel gear 432 along the circumferential direction, and the driving small bevel gear 433 and the three driven small bevel gears 434 are all meshed with the first large bevel gear 431 and the second large bevel gear 432, the motor 42 is connected to the driving small bevel gear 433, the unlocking shaft 3 axially penetrates the first large bevel gear 431 and the second large bevel gear 432 and cooperates with the first large bevel gear 431 in transmission, and the grating disk 44 is coaxially connected to one of the driven small bevel gears 434. During operation, the forward or reverse rotation of the motor 42 drives the active small bevel gear 433, and the active small bevel gear 433 drives the first large bevel gear 431 and the second large bevel gear 432 to rotate. The rotation of the first large bevel gear 431 and the second large bevel gear 432 prompts the three driven small bevel gears 434 to rotate accordingly, and the grating disk 44 connected to one of the driven small bevel gears 434 also rotates accordingly. At the same time, the rotation of the first large bevel gear 431 drives the unlocking shaft 3, the lock core shaft 13 and the lock core dial wheel 12 to rotate in the unlocking direction or the locking direction, thereby realizing the electric unlocking or electric locking operation of the lock core, and when the electric unlocking or electric locking operation of the lock core is completed, the grating disk 44 follows the driven small bevel gear 434 coaxially connected thereto to stop rotating, and when the laser sensor 45 detects this stop signal, it immediately controls the motor 42 to stop working via the main board 41.

[0032] As described above, a hexagonal connecting portion 4341 is coaxially disposed on the outer side of the driven small bevel gear 434 coaxially connected to the grating disk 44 , and the grating disk 44 is nested in the hexagonal connecting portion 4341 through the hexagonal connecting hole 445 thereon.

[0033] In a preferred example of the present invention, the electric drive device 4 also includes an unlocking button 46 and a locking button 47 which are arranged on the surface of the control box 2 on the side facing away from the lock core housing 11 and are electrically connected to the main board 41 respectively. By pressing the unlocking button 46 and the locking button 47, the lock core can be electrically unlocked and electrically locked.

[0034] In a preferred embodiment of the present invention, the electric drive device 4 further includes two 4.2V lithium batteries 48 disposed inside the control box 2 and electrically connected to the main board 41, and the two 4.2V lithium batteries 48 are connected in series.

[0035] In a preferred example of the utility model, the electric drive device 4 also includes a charging board 49 arranged inside the control box 2 and electrically connected to the main board 41. The charging board 49 is provided with a charging interface 491 exposed on the surface of the side of the control box 2 facing away from the lock core shell 11.

[0036] The above is only a preferred embodiment of the present utility model, and it cannot be used to limit the scope of the present utility model. That is, all simple equivalent changes and modifications made according to the scope of the patent application of the present utility model and the content of the utility model description are still within the scope of the present utility model patent.

Claims

1. A lock core that can shut down the motor in time after the electric opening and locking operations are completed, comprising a lock core body and a control box, wherein the lock core body comprises a lock core housing, a lock core dial wheel and a lock core rotating shaft, one end of the lock core housing is connected to the control box, the lock core housing is provided with a lock core dial wheel mounting groove and a lock core rotating shaft mounting hole, one end of the lock core rotating shaft mounting hole is communicated with the lock core dial wheel mounting groove, and the other end is communicated with the interior of the control box, the lock core dial wheel is arranged in the lock core dial wheel mounting groove, the lock core rotating shaft is arranged in the lock core rotating shaft mounting hole, and one end of the lock core rotating shaft is matched with the lock core dial wheel transmission, and the other end extends into the interior of the control box, the interior of the control box is provided with an unlocking rotating shaft transmission-connected to the extending end of the lock core rotating shaft and an electric driving device for driving the unlocking rotating shaft to rotate in an unlocking direction or a locking direction, characterized in that: The electric drive device includes a main board, a motor, a gear transmission unit, a grating disk and a laser sensor. The gear transmission unit is connected between the motor and the unlocking shaft. The grating disk is connected to the gear transmission unit and can rotate or stop following the gear transmission unit. The laser sensor is used to detect the rotation or stop signal of the grating disk and transmit the detection signal to the main board. When the laser sensor detects the stop signal of the grating disk, the main board immediately controls the motor to stop working.

2. According to claim 1, a lock core capable of shutting down the motor in time after the electric opening and closing operation is completed, characterized in that: The laser sensor includes a sensor board electrically connected to the main board, and a laser emitting end and a laser receiving end arranged relatively on one side of the sensor board. The grating disk is located between the laser emitting end and the laser receiving end. When the grating disk rotates following the gear transmission unit, the laser receiving end switches cyclically between being able to receive the laser emitted by the laser emitting end and being unable to receive the laser emitted by the laser emitting end. When the grating disk stops following the gear transmission unit, the laser receiving end stops in a state of being able to receive the laser emitted by the laser emitting end or being unable to receive the laser emitted by the laser emitting end.

3. A lock core capable of shutting down the motor in time after the electric opening and closing operation is completed according to claim 2, characterized in that: The grating disk includes an inner ring portion, an outer ring portion and a plurality of shading portions spaced apart between the inner ring portion and the outer ring portion, and a light-transmitting hole is formed between two adjacent shading portions. When the shading portion faces the laser emitting end and the laser receiving end, the laser receiving end cannot receive the laser emitted by the laser emitting end. When the light-transmitting hole faces the laser emitting end and the laser receiving end, the laser receiving end can receive the laser emitted by the laser emitting end.

4. A lock core capable of shutting down the motor in time after the electric opening and closing operation is completed according to claim 3, characterized in that: The inner circumference of the inner ring portion is defined with a hexagonal connecting hole, one side of the inner ring portion is provided with a handle portion extending outwardly from the side end surface in a cylindrical shape, and the hexagonal connecting hole penetrates the handle portion along the axial direction.

5. A lock core capable of shutting down the motor in time after the electric opening and closing operation is completed according to claim 1, 2, 3 or 4, characterized in that: The gear transmission unit includes a first large bevel gear, a second large bevel gear, a driving small bevel gear and three driven small bevel gears, the first large bevel gear and the second large bevel gear are arranged opposite to each other with an interval, and the first large bevel gear is close to the lock core housing, and the second large bevel gear is far away from the lock core housing, the driving small bevel gear and the three driven small bevel gears are evenly distributed between the first large bevel gear and the second large bevel gear along the circumferential direction, and the driving small bevel gear and the three driven small bevel gears are all meshed with the first large bevel gear and the second large bevel gear, the motor is connected to the driving small bevel gear, the unlocking shaft axially penetrates the first large bevel gear and the second large bevel gear and cooperates with the first large bevel gear, and the grating disk is coaxially connected to one of the driven small bevel gears.

6. A lock core capable of shutting down the motor in time after the electric opening and closing operations are completed according to claim 5, characterized in that: A hexagonal connecting portion is coaxially arranged on the outer side of the driven small bevel gear coaxially connected to the grating disk, and the grating disk is nested in the hexagonal connecting portion.

7. A lock core capable of shutting down the motor in time after the electric opening and closing operation is completed according to claim 1, 2, 3 or 4, characterized in that: The electric drive device also includes an unlocking button and a locking button which are arranged on a surface of the control box on a side away from the lock core housing and are electrically connected to the main board respectively.

8. A lock core capable of shutting down the motor in time after the electric opening and closing operation is completed according to claim 1, 2, 3 or 4, characterized in that: The electric drive device also includes two 4.2V lithium batteries arranged inside the control box and electrically connected to the main board, and the two 4.2V lithium batteries are connected in series.

9. A lock core capable of shutting down the motor in time after the electric opening and closing operation is completed according to claim 1, 2, 3 or 4, characterized in that: The electric drive device also includes a charging board arranged inside the control box and electrically connected to the main board. The charging board is provided with a charging interface exposed on a surface of the control box that is away from the lock core housing.

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