阅读说明：本技术 一种智能门锁、锁体及锁体的自动上锁方法 (Intelligent door lock, lock body and automatic locking method of lock body ) 是由 袁小顺 徐祥明 任利学 于 2019-10-11 设计创作，主要内容包括：本发明涉及一种智能门锁、锁体及锁体的自动上锁方法,其中,锁体包括壳体及设于壳体内的主锁舌、剪刀舌、检测舌、锁定组件、PCB组件和用于驱动主锁舌的驱动组件；PCB组件包括控制器和锁定开关,控制器分别与锁定开关及驱动组件信号连接；锁定组件包括能够将处于弹出状态的剪刀舌锁定的锁定块,且当锁定块锁定剪刀舌时,能够触发锁定开关使其向控制器发送锁定信号,控制器根据锁定信号控制驱动组件驱动主锁舌弹出以上锁；检测舌设有抵接块,检测舌弹出时,抵接块能够抵接锁定块以使其与剪刀舌脱离,检测舌未弹出时抵接块与锁定块脱离。能够避免关门后门虚掩时电机驱动主锁舌自动上锁,进而避免主锁舌与门扣板之间的硬撞击,保证主锁舌的使用寿命。(The invention relates to an intelligent door lock, a lock body and an automatic locking method of the lock body, wherein the lock body comprises a shell, a main lock bolt, a scissor bolt, a detection bolt, a locking assembly, a PCB assembly and a driving assembly, wherein the main lock bolt, the scissor bolt, the detection bolt, the locking assembly, the PCB assembly and the driving assembly are arranged in the shell; the PCB assembly comprises a controller and a locking switch, and the controller is respectively in signal connection with the locking switch and the driving assembly; the locking assembly comprises a locking block which can lock the scissors tongue in the popping state, and when the scissors tongue is locked by the locking block, the locking switch can be triggered to send a locking signal to the controller, and the controller controls the driving assembly to drive the main lock tongue to pop out to be locked according to the locking signal; the detection tongue is provided with a butt joint block, when the detection tongue is popped up, the butt joint block can butt against the locking block to enable the locking block to be separated from the scissors tongue, and when the detection tongue is not popped up, the butt joint block is separated from the locking block. The motor-driven main spring bolt can be prevented from being automatically locked when the door is closed and the door is hidden, so that the hard impact between the main spring bolt and the door buckle plate is avoided, and the service life of the main spring bolt is ensured.)

1. A lock body of an intelligent door lock is characterized by comprising a shell (1), a main lock bolt (2), a scissor bolt (3), a detection bolt (4), a locking assembly (5), a PCB assembly and a driving assembly (7) for driving the main lock bolt (2), wherein the main lock bolt (2), the scissor bolt (3), the detection bolt (4), the locking assembly (5) and the driving assembly are arranged in the shell (1);

the PCB assembly comprises a controller and a locking switch (61), and the controller is in signal connection with the locking switch (61) and the driving assembly (7) respectively;

the locking assembly (5) comprises a locking block (51) capable of locking the scissor tongue (3) in an ejection state, and when the locking block (51) locks the scissor tongue (3), the locking switch (61) can be triggered to send a locking signal to the controller, and the controller controls the driving assembly (7) to drive the main spring tongue (2) to eject for locking according to the locking signal;

detect tongue (4) and be equipped with butt piece (41), when detecting tongue (4) and pop out, butt piece (41) can butt locking block (51) so that it with scissors tongue (3) break away from, when detecting tongue (4) and not popping out butt piece (41) with locking block (51) break away from.

2. The lock body of claim 1, further comprising an alarm device in signal communication with said controller;

the PCB assembly further comprises a detection switch (64), and when the detection tongue (4) is compressed and retracted into the shell (1), the detection switch (64) can be triggered to send a detection signal to the controller;

and when the controller receives the detection signal but does not receive the locking signal, the controller controls the alarm device to alarm.

3. A lock body according to claim 2, characterized in that the PCB assembly further comprises a lock switch (62) and a reset switch (63);

the driving assembly (7) comprises a motor (71), a driving gear (72), a driven gear (73) meshed with the driving gear (72) and an upper locking shifting block (74), wherein the driving gear (72) is provided with an eccentric bump (721);

a first trigger piece (22) is arranged at the inner end of the main bolt (2), and a second trigger piece (731) is arranged on the driven gear (73);

the motor (71) drives the driving gear (72) to rotate in a forward direction, the eccentric bump (721) can push the upper locking shifting block (74) to rotate so as to push the main bolt (2) to pop up to be locked, the first trigger (22) can trigger the upper locking switch (62) to send a locking signal to the controller, the controller controls the motor (71) to drive the driving gear (72) in a reverse direction according to the locking signal, the motor (71) returns to a home position when the second trigger (731) triggers the reset switch (32), the reset switch (63) sends a reset signal to the controller, and the controller controls the motor (71) to stop driving according to the reset signal.

4. A lock body according to claim 3, characterized in that the detection tongue (4) is able to trigger the detection switch (64) to send an eject signal to the controller when ejected, and the abutment block (41) is able to push the locking block (51) out of engagement with the scissor tongue (3);

and when the controller receives the locking signal and the popping signal, the controller controls the alarm device to give an alarm.

5. A lock body according to any one of claims 1-4, characterized in that it further comprises an anti-lock assembly (8) comprising an anti-lock tongue (81) and an anti-lock shift block (82), said anti-lock shift block (82) is of an eccentric structure, and the rotation of said anti-lock shift block (82) can push said anti-lock tongue (81) to eject it.

6. A lock body according to any one of claims 1-4, characterized in that the locking assembly (5) further comprises a locking spring (52);

the lateral wall of casing (1) is equipped with slide (12), locking block (51) are equipped with the slider, the slider can be followed slide in slide (12), locking spring (52) can act on locking block (51) are so that it is followed slide (12) to one side of scissors tongue (3) slides.

7. An intelligent door lock, characterized in that it comprises a lock body according to any one of claims 1-6.

8. An automatic locking method of a lock body of an intelligent door lock is characterized by comprising the following steps:

s1: the detection tongue is compressed to retract into the shell and drives the abutting block to be separated from the locking block, the locking block can move to one side of the scissor tongue, and the abutting block is arranged on the detection tongue and used for limiting the movement of the locking block;

s2: after the abutting block is separated from the locking block, if the shear tongue is popped up, the locking block can move towards the shear tongue to be matched and locked with the shear tongue, and a locking switch is triggered at the same time;

if the scissors tongue is not popped up, the locking block cannot trigger the locking switch;

s3: if the locking switch is triggered, the driving assembly drives the main lock tongue to be ejected to be locked.

9. The automatic locking method of claim 8, wherein in step S3, the driving assembly ejecting the main bolt to the lock is that the driving assembly ejects the main bolt to trigger the lock switch;

and further includes step S4 after step S3: after the locking switch is triggered, the motor rotates reversely to the original position.

10. The automatic locking method of a lock body of claim 9, further comprising step S5 after step S4: and after locking, if the detection tongue pops out, an alarm signal is sent out.

11. A lock body automatic locking method according to any one of claims 8 to 10, wherein said step S3 further comprises: and if the locking switch is not triggered, sending out an alarm signal.

Technical Field

The invention relates to the technical field of intelligent door locks, in particular to an intelligent door lock, a lock body and an automatic locking method of the lock body.

Background

In the prior art, the full-automatic lock body delays a certain time and triggers the motor module to drive the main bolt to automatically lock by detecting the switch state jump of the pressed bolt, and no virtual masking detection judgment is performed. When the door is hidden, namely the scissor tongue and the detection tongue are pressed simultaneously, the scissor tongue is not popped into the door buckle plate spring tongue hole, the main spring tongue can be popped out by mistake to hit the door buckle plate on the door frame, and the hard impact of the main spring tongue reduces the service life and the performance of the whole lock.

Therefore, how to avoid the situation that the motor drives the main bolt to automatically lock when the door is closed and hidden, and further avoid the hard impact between the main bolt and the door buckle plate is the technical problem to be solved by the technical personnel in the field.

Disclosure of Invention

The invention aims to provide an intelligent door lock, a lock body and an automatic locking method of the lock body, which can prevent a motor from driving a main bolt to automatically lock when a door is hidden after being closed, further prevent hard impact between the main bolt and a door buckle plate and ensure the service life of the main bolt.

In order to solve the technical problem, the invention provides a lock body of an intelligent door lock, which comprises a shell, a main lock bolt, a scissor bolt, a detection bolt, a locking assembly, a PCB assembly and a driving assembly, wherein the main lock bolt, the scissor bolt, the detection bolt, the locking assembly, the PCB assembly and the driving assembly are arranged in the shell; the PCB assembly comprises a controller and a locking switch, and the controller is in signal connection with the locking switch and the driving assembly respectively; the locking assembly comprises a locking block capable of locking the scissor tongue in an ejecting state, and when the scissor tongue is locked by the locking block, the locking switch can be triggered to send a locking signal to the controller, and the controller controls the driving assembly to drive the main spring bolt to eject to lock according to the locking signal; the detection tongue is provided with a butt joint block, when the detection tongue is popped up, the butt joint block can butt against the locking block so as to enable the locking block to be separated from the scissors tongue, and when the detection tongue is not popped up, the butt joint block is separated from the locking block.

Optionally, the device further comprises an alarm device in signal connection with the controller; the PCB assembly further comprises a detection switch, and when the detection tongue is pressed and retracted into the shell, the detection switch can be triggered to send a detection signal to the controller; and when the controller receives the detection signal but does not receive the locking signal, the controller controls the alarm device to alarm.

Before closing the door, the scissor tongue and the detection tongue are both in a popup state, at the moment, the butting block can be butted with the locking block to limit the butting block to lock the scissor tongue, after the door is closed, the detection tongue is pressed into the shell (when the detection tongue is not popped out) and drives the butting block to be separated from the locking block, the scissor tongue is popped out into a lock hole corresponding to the door frame under the action of the first spring, at the moment, the locking block can be locked with the scissor tongue and triggers the locking switch, the controller can receive a locking signal, and then the driving assembly is controlled to drive the main spring tongue to pop out to realize locking; if the door is in the virtual state of occulting after closing, then scissors tongue and detection tongue all are pressed and are in the state of not popping out, and locking piece can't be locked with scissors tongue this moment to can't trigger the locking switch, the controller does not receive locking signal, and drive assembly does not have an effect, and main spring bolt can not pop out, and then can avoid under the virtual state of occulting, and the main spring bolt is popped out and is taken place hard striking between the AND gate buckle, and then guarantees the life of this lock body.

Optionally, the PCB assembly further comprises a lock switch and a reset switch; the driving assembly comprises a motor, a driving gear, a driven gear meshed with the driving gear and an upper locking shifting block, and the driving gear is provided with an eccentric lug; the inner end of the main lock tongue is provided with a first trigger piece, and the driven gear is provided with a second trigger piece; the motor drives the driving gear to rotate in a forward direction, the upper locking shifting block can be pushed to rotate through the eccentric convex block so as to push the main bolt to pop up to be locked, the first trigger piece can trigger the upper locking switch to enable the upper locking switch to send an locking signal to the controller, the controller controls the motor to drive the driving gear to rotate in a reverse direction according to the locking signal until the second trigger piece triggers the reset switch, the motor returns to the original position, the reset switch sends a reset signal to the controller, and the controller controls the motor to stop driving according to the reset signal.

Optionally, when the detection tongue is ejected, the detection switch can be triggered to send an ejection signal to the controller, and the abutting piece can push the locking block to be disengaged from the scissor tongue; and when the controller receives the locking signal and the popping signal, the controller controls the alarm device to give an alarm.

Optionally, the anti-lock mechanism further comprises an anti-lock assembly, wherein the anti-lock assembly comprises an anti-lock bolt and an anti-lock shifting block, the anti-lock shifting block is of an eccentric structure, and the anti-lock bolt can be pushed to be ejected out by rotation of the anti-lock shifting block.

Optionally, the locking assembly further comprises a locking spring; the lateral wall of casing is equipped with the slide, the locking block is equipped with the slider, the slider can be followed slide in the slide, the locking spring can act on the locking block so that it follows the slide to one side of scissors tongue slides.

The invention also provides an intelligent door lock, which comprises the lock body.

The technical effect of the intelligent door lock with the lock body is similar to that of the lock body, and is not repeated herein for saving space.

In addition, the invention also provides an automatic locking method of the lock body of the intelligent door lock, which comprises the following steps:

s1: the detection tongue is compressed to retract into the shell and drives the abutting block to be separated from the locking block, the locking block can move to one side of the scissor tongue, and the abutting block is arranged on the detection tongue and used for limiting the movement of the locking block;

s2: after the abutting block is separated from the locking block, if the shear tongue is popped up, the locking block can be matched with the shear tongue to lock the shear tongue, and meanwhile, a locking switch is triggered;

if the scissors tongue is not popped up, the locking block cannot trigger the locking switch;

s3: if the locking switch is triggered, the driving assembly drives the main lock tongue to be ejected to be locked.

Before closing the door, the scissor tongue and the detection tongue are both in a popup state, at the moment, the butting block can be butted with the locking block to limit the butting block to lock the scissor tongue, after closing the door, the detection tongue is pressed into the shell (when not popped out) and drives the butting block to be separated from the locking block, the scissor tongue is popped out into a lock hole corresponding to the door frame, at the moment, the locking block can be locked with the scissor tongue and triggers the locking switch, and then the driving assembly is controlled to drive the main spring tongue to pop out to realize locking; if the door is in the virtual state of occulting after closing, then scissors tongue and detection tongue all are pressed and are in the state of not popping out, and locking piece and scissors tongue locking this moment to can't trigger the locking switch, drive assembly does not have an effect, and main spring bolt can not pop out, and then can avoid under the virtual state of occulting, and the main spring bolt is popped out and is taken place hard striking between the AND gate buckle, and then guarantees the life of this lock body.

Optionally, in step S3, the step of ejecting the driving main bolt to the locked state by the driving assembly means that the driving assembly drives the main bolt to eject to the locked state to trigger the locking switch;

and further includes step S4 after step S3: after the locking switch is triggered, the motor rotates reversely to the original position.

Optionally, the step S4 is followed by the step S5: and after locking, if the detection tongue pops out, an alarm signal is sent out.

Optionally, the step S3 further includes: and if the locking switch is not triggered, sending out an alarm signal.

Drawings

Fig. 1 is a schematic structural diagram of a lock body in an unlocked state according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a lock body provided in an embodiment of the present invention in an unlocked state;

FIG. 3 is a schematic view of a portion of the structure of FIG. 2;

FIG. 4 is a schematic diagram of a PCB assembly;

FIG. 5 is a schematic structural view of the main bolt and the drive assembly;

FIG. 6 is a schematic view of the lock assembly in an installed condition;

FIG. 7 is a schematic view of the locking block and roller of FIG. 6;

FIG. 8 is a schematic structural view of the housing of FIG. 6;

fig. 9 is a flowchart of an automatic locking method for a lock body according to an embodiment of the present invention;

FIG. 10 is a detailed flow chart of FIG. 9;

fig. 11 is a logic block diagram of an automatic locking method.

In the accompanying fig. 1-11, the reference numerals are illustrated as follows:

1-shell, 11-guide bracket, 12-slideway;

2-main bolt, 21-upper lock groove, 22-first trigger piece, 221-adapter piece;

3-scissor tongue, 31-locking groove, 32-first spring;

4-detecting tongue, 41-abutting block, 42-second spring;

5-locking assembly, 51-locking block, 511-sliding shaft, 52-locking spring, 53-roller;

6-PCB assembly, 61-locking switch, 62-locking switch, 63-reset switch, 64-detection switch;

7-driving assembly, 71-motor, 72-driving gear, 721-eccentric lug, 73-driven gear, 731-second trigger piece, 74-upper locking shifting block;

8-back locking component, 81-back locking bolt, 82-back locking shifting block;

9-door buckle plate.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-8, fig. 1 is a schematic structural diagram of a lock body in an unlocked state according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a lock body provided in an embodiment of the present invention in an unlocked state; FIG. 3 is a schematic view of a portion of the structure of FIG. 2; FIG. 4 is a schematic diagram of the structure of the PCB assembly of FIGS. 1 and 2; FIG. 5 is a schematic structural view of the drive assembly in a no-motor state; FIG. 6 is a schematic view of the lock assembly in an installed condition; FIG. 7 is a schematic view of the locking block and roller of FIG. 6; fig. 8 is a schematic structural view of the housing of fig. 6.

The embodiment of the invention provides an intelligent door lock and a lock body thereof, wherein the intelligent door lock comprises the lock body, and particularly, as shown in fig. 1 and fig. 2, the lock body comprises a shell 1, a main bolt 2, a scissor bolt 3, a detection bolt 4, a locking assembly 5, a PCB assembly 6 and a driving assembly 7 for driving the main bolt 2, wherein the PCB assembly 6 comprises a controller and a locking switch 61, and the controller is respectively in signal connection with the locking switch 61 and the driving assembly 7.

Specifically, as shown in fig. 6, the locking assembly 5 includes a locking block 51, the locking block 51 can lock the scissor tongue 3 in the ejected state, and when the locking block 51 locks the scissor tongue 3, the locking block 51 can trigger a locking switch 61, so that the locking switch 61 sends a locking signal to the controller, and the controller controls the driving assembly 7 to drive the main latch tongue 2 to eject for locking according to the locking signal received by the controller.

The detection tongue 4 is provided with an abutting block 41, when the detection tongue 4 is in an ejecting state, the abutting block 41 can abut against the locking block 51 to limit the cooperation with the scissors tongue 3, namely when the detection tongue 4 is ejected, the scissors tongue 3 cannot be locked, and when the detection tongue 4 is pressed and positioned in the shell 1 (not ejected), the abutting block 41 is separated from the locking block 51, at the moment, if the scissors tongue 3 is ejected, the locking block 51 can lock the scissors tongue 3 and trigger the locking switch 61, and then locking is realized through control of the controller.

Before closing the door, as shown in fig. 1, the scissor tongues 3 and the detection tongues 4 are both in an ejection state (a first spring 32 for pushing the scissor tongues 3 to eject and a second spring 42 for pushing the detection tongues 4 to eject are arranged in the housing 1), at this time, the abutting block 41 can abut against the locking block 51 to limit the abutting block 41 to lock the scissor tongues 3, after closing the door, as shown in fig. 2, the detection tongues 4 are pressed into the housing 1 and drive the abutting block 41 to disengage from the locking block 51, the scissor tongues 3 will eject to a lock hole corresponding to the door frame under the action of the first spring 32, at this time, the locking block 51 can lock with the scissor tongues 3 and trigger the locking switch 61 to enable the locking switch 61 to send a locking signal to the controller, and then the controller will control the driving assembly 7 to drive the main tongue 2 to eject to realize locking according to the received locking signal. If the door is in a virtual covering state after closing, the scissor tongue 3 and the detection tongue 4 are both pressed and are in an un-ejected state, at the moment, the locking block 51 cannot be locked with the scissor tongue 3, the locking switch 61 cannot be triggered, the controller does not receive a locking signal, the driving assembly 7 has no effect, the main spring bolt 2 cannot be ejected, hard impact between the main spring bolt 2 and the door buckle plate 9 when the main spring bolt 2 is ejected in the virtual covering state can be avoided, and the service life of the lock body is further ensured.

In the above embodiment, the lock body further comprises an alarm device in signal connection with the controller, the PCB assembly 6 further comprises a detection switch 64, the detection switch 64 can be triggered when the detection tongue 4 is pressed and located in the housing 1, and the detection switch 64 can send a detection signal to the controller after being triggered. When the controller receives a detection signal, the detection tongue 4 is pressed and positioned in the shell 1 at the moment, the abutting block 41 of the detection tongue 4 does not limit the locking block 51 any more, then, if the controller receives a locking signal, the locking block 51 is matched with the locking groove 31 of the shear tongue 3 and locks the shear tongue 3, the door is closed, and then the controller controls the driving assembly to drive the main lock tongue to pop up for locking; if the controller receives the detection signal but does not receive the locking signal, it indicates that the detection tongue 4 is compressed and retracted into the housing 1, but the locking block 51 is not matched with the locking slot 31 of the scissor tongue 3, that is, at this time, the scissor tongue 3 is not popped up when the door is in a virtual state, the controller controls the alarm device to give an alarm, so as to avoid the situation that the user mistakenly thinks that the door is closed and automatically locked, and improve the safety.

In the above embodiment, as shown in fig. 3-5, the PCB assembly 6 further includes an upper lock switch 62 and a reset switch 63, the driving assembly 7 includes a motor 71, a driving gear 72, a driven gear 73 and an upper lock dial 74, wherein the driving gear 72 is engaged with the driven gear 73, the driving gear 72 is provided with an eccentric protrusion 721, when the motor 71 drives the driving gear 72 to rotate in the forward direction, the eccentric protrusion 721 can rotate to abut against the upper lock dial 74 to push the upper lock dial 74 to rotate around the axis of the driving gear 72, and the rotation of the upper lock dial 74 can push the main bolt 2 to pop up to lock.

The inner end of the main bolt 2 is provided with a first trigger 22, the driven gear 73 is provided with a second trigger 731, when the first trigger 22 triggers the locking switch 62, the main bolt 2 is ejected, the intelligent door lock is in a locking state, and when the second trigger 731 triggers the reset switch 63, the motor 71 is in a home position. The motor 71 is located at the original position, namely the position of the motor 71 before the intelligent door lock is locked, after the intelligent door lock is locked, the intelligent door lock can be unlocked through reverse rotation of the motor 71, mechanical unlocking can also be performed through a key, a user can drive the locking shifting block 74 to rotate through the key shifting piece when rotating the key, and then the locking shifting block 74 acts on the main bolt 2 to enable the main bolt to retract into the shell 1. After locking, when the motor 71 rotates reversely to the original position, the user does not need to overcome the resistance of the motor 71 when unlocking mechanically through the key, and the mechanical unlocking is convenient to carry out.

Specifically, during locking, when the controller controls the motor 71 to drive the driving gear 72 to rotate in the forward direction, the eccentric protrusion 721 of the driving gear 72 rotates to abut against the upper locking shifting block 74 and then can push the upper locking shifting block 74 to rotate around the axis of the driving gear 72, and when the upper locking shifting block 74 rotates to push the main bolt 2 to move to the first trigger 22 to trigger the upper locking switch 62, the main bolt 2 is in the pop-up state, the intelligent door lock is locked, the upper locking switch 62 can send a locking signal to the controller, the controller controls the motor 71 to drive the driving gear 72 to rotate in the reverse direction according to the locking signal and drives the eccentric protrusion 721 to rotate in the reverse direction to disengage from the upper locking shifting block 74, at this time, the position of the upper locking shifting block 74 is not moved, the main bolt 2 is still in the pop-up state, when the motor 71 rotates to the second trigger 731 to trigger the reset switch 63, the, when the motor 71 is rotated to the original position, the controller controls the motor 71 to stop driving according to the reset signal, at this time, the door lock is still in a locked state, and at this time, if the door lock is mechanically unlocked by the key, the rotation of the key can drive the locking shifting block 74 to rotate reversely through the key shifting piece so as to enable the main bolt 2 to move reversely into the housing 1 to realize unlocking, and in the process, the motor 71, the driving gear 72 and the driven gear 73 do not need to rotate, so that the mechanical unlocking operation is facilitated.

In the lock body provided by the embodiment, the locking is realized through the locking switch 62 and the first trigger piece 22 of the main bolt 2, then the locking signal is sent to the controller to enable the controller to control the motor 71 to stop rotating, and meanwhile, the reset switch 63 and the second trigger piece 731 arranged on the driven gear 73 realize that the motor 71 resets and then the reset signal is sent to the controller to enable the controller to control the motor 71 to stop driving. The main bolt 2 is located to first trigger piece 22, driven gear 73 is located to second trigger piece 731, only through two gears of driving gear 72 and driven gear 73, can need not to overcome the resistance of motor 71 when guaranteeing that the user passes through key machinery unblock, need not to set up other limit structure, and then can simplify overall structure, the economic nature is good and the installation of being convenient for, and driving gear 72 and driven gear 73 meshing's mode realizes the transmission, stability is good and control accuracy is high, avoid the position of second trigger piece 731 to take place the skew and influence motor 71 and reset.

Specifically, the main bolt 2 may directly trigger the locking switch 62 through the trigger when being ejected, or the first trigger 22 may trigger the locking switch 62 through the adaptor 221, which is not limited herein and may be set according to a specific structural arrangement.

In this embodiment, for the main lock tongue 2, the scissor tongue 3 and the detection tongue 4, the inner end refers to the end located in the housing 1, and no matter whether the inner end is in the pop-up state, the inner end is located in the housing 1, and the outer end corresponding to the inner end in the pop-up state can extend out of the housing 1. If the inner end of the scissor tongue 3 is provided with the locking groove 31, if the scissor tongue 3 is in an ejected state, the locking block 51 can move to be matched with the locking groove 31 under the action of the locking spring 52 and trigger the locking switch 61, if the door is in a virtual state, the scissor tongue 3 is pressed and positioned in the shell 1, the locking block 51 moves to be abutted against the end face of the locking groove 31 under the action of the locking spring 52, and at the moment, the end face of the locking groove 31 limits the movement of the locking block 51, so that the locking block 51 cannot trigger the locking switch 61; the inner end of the main bolt 2 is provided with an upper lock groove 21, and an upper lock shifting block 74 can rotate around the rotation axis of the driving gear 72 and can abut against the groove wall of the upper lock groove 21 when rotating so as to push the main bolt 2 to pop out to be locked.

The forward rotation is rotation toward the locking direction, and the reverse rotation is rotation toward the unlocking direction. The switch (including the lock switch 61, the lock switch 62, the reset switch 63, and the like) may be triggered by contacting with the switch or by being separated from the switch. How to send signals to the controller by each switch and how to drive the motor 71 to operate according to the received signals are mature prior art for those skilled in the art, and are not described herein for brevity.

In the above embodiment, when the detecting tongue 4 is pressed into the housing 1, the abutting block 41 can be driven to disengage from the locking block 51, and the detecting tongue 4 can trigger the detecting switch 64 to send a detecting signal to the controller, and when the detecting tongue 4 is ejected, the abutting block 41 can be driven to push the locking block 51 to move to a side away from the scissor tongue 3 to disengage from the scissor tongue 3, and the detecting tongue 4 can also trigger the detecting switch 64 to send an ejecting signal to the controller.

If the controller receives the locking signal sent by the locking switch 62, it indicates that the main bolt 2 is in the pop-up state at present, and the intelligent door lock is in the locking state, at this time, if the controller receives the pop-up signal sent by the detection switch 64, it indicates that the detection bolt 4 is in the pop-up state, and when the door is locked, the detection bolt 4 is compressed and retracted into the housing 1, so that after being locked, the controller receives the pop-up signal, it indicates that an error occurs, and the controller controls the alarm device to alarm to remind the user to check.

In detail, before the door is closed, the scissor tongue 3 and the detection tongue 4 are both in the pop-up state, at this time, if the detection tongue 4 is pressed into the housing 1 by mistake due to the external force, the scissor tongue 3 is in the pop-up state at this time, the abutting block 41 is separated from the locking block 51, the locking switch 61 can be triggered, a locking signal is sent to the controller, and the controller controls the driving assembly 7 to be locked. When the external force is removed, the detection tongue 4 moves outwards under the action of the detection spring to pop up, and at the moment, the detection switch 64 can send a pop-up signal to the controller so that the controller controls the alarm device to give an alarm. Specifically, in this embodiment, no requirement is made on the alarm device, for example, the alarm device may alarm through sound, or send an alarm signal to the client.

In the above embodiment, the lock body further includes a back locking assembly 8, as shown in fig. 1 and fig. 2, the back locking assembly 8 includes a back locking tongue 81 and a back locking shifting block 82, the back locking shifting block 82 is an eccentric structure, and the rotation of the back locking shifting block 82 can push the back locking tongue 81 to pop out, specifically, an operation portion for operating the back locking shifting block 82 to rotate is disposed on one side of the intelligent door lock facing the inside of the door, a user can operate the back locking shifting block 82 to rotate through the operation portion to drive the back locking tongue 81 to pop out to realize back locking, in a back locking state, the intelligent door lock cannot be opened outside the door, and the back locking of the back locking tongue 81 through the back locking shifting block 81 is unrelated to whether the main locking tongue 2 pops out, that is, the back locking priority is high, and further, the security of the intelligent door lock can be improved.

In the above embodiment, the locking assembly 5 further comprises a locking spring 52, the housing 1 is provided with a slide 12 (as shown in fig. 8), the locking block 51 is provided with a slide block which is located in the slide 12 and can slide along the slide 12, and the locking spring 52 can act on the locking block 51 to slide along the slide 12 to one side of the scissor tongues 3. That is, the locking block 51 can slide linearly along the slideway 12, specifically can slide to one side of the scissor tongue 3 by the action of the locking spring 52, and can also slide to one side far away from the scissor tongue 3 along the slideway 12 by being pushed by the abutting block 41 of the detection tongue 4. Alternatively, in this embodiment, the locking block 51 may be configured to move to one side of the scissor tongue 3 in a rotating manner, and the linear sliding may simplify the overall structure and facilitate the spatial arrangement.

Further, as shown in fig. 7, the slide block in this embodiment is a slide shaft 511, a roller 53 is sleeved outside the slide shaft 511, the slide rail 12 is a slide groove, and when the slide shaft 511 slides along the slide groove, the roller 53 rotates around the axis of the slide shaft 511. That is, the sliding shaft 511 is not in direct contact with the inner wall of the sliding chute, but is in contact with the sliding chute through the roller 53, and when the locking block 51 slides, the roller 53 rolls in the sliding chute, so that the friction and wear between the roller 53 and the inner wall of the sliding chute can be reduced, the service life of the locking assembly 5 and the housing 1 can be ensured, and the service life of the lock body can be further ensured.

Further, a stopper is provided at an end of the roller 53 facing the lock block 51 for restricting the roller 53 from moving to a side away from the lock block 51 in the axial direction of the slide shaft 511, thereby ensuring that the roller can stably roll between the slide shaft 511 and the slide 12.

In the above embodiment, the lock body is further provided with a guiding assembly for respectively limiting the movement of each bolt (the main bolt 2, the scissor bolt 3 and the detection bolt 4), the guiding assembly comprises a guiding groove and a guiding block, wherein one is arranged on the side wall of the housing 1, the other is arranged on the bolt, if the bolt is provided with a guiding groove, the corresponding housing 1 is provided with a guiding block, or the bolt is provided with a guiding block, and the housing 1 is provided with a guiding groove; the guiding component can also be arranged to comprise a guiding bracket 11 fixedly arranged on the shell 1, and the guiding bracket 11 is provided with a guiding hole penetrating through the bolt so as to limit the bolt from the middle part and ensure the bolt to be linearly ejected or retracted.

Referring to fig. 9-11, fig. 9 is a flowchart illustrating an automatic locking method for a lock body according to an embodiment of the present invention; FIG. 10 is a detailed flow chart of FIG. 9; fig. 11 is a logic block diagram of an automatic locking method.

The embodiment also provides an automatic locking method of a lock body of an intelligent door lock, as shown in fig. 9, the automatic locking method includes the following steps:

s1: the detection tongue 4 is compressed to retract into the shell 1 and drives the abutting block 41 to be separated from the locking block 51, the locking block 51 can move to one side of the scissor tongues 3, and the abutting block 41 is arranged on the detection tongue 4 and used for limiting the movement of the locking block 51.

When the detection tongue 4 is ejected, the abutment block 41 can restrict the movement of the lock block 51 to the scissor tongues 3, and when the detection tongue 4 is not ejected, the abutment block 41 no longer restricts the movement of the lock block 51, and at this time, the lock block 51 can move toward the scissor tongues 3 by the lock spring 52.

S2: after the abutting block 41 is separated from the locking block 51, if the scissor tongues 3 are popped up, the locking block 51 can move towards the scissor tongues 3 to be matched and locked with the scissor tongues, and meanwhile, the locking switch 61 is triggered; if the scissor tongue 3 is not ejected, the locking block 51 will not trigger the locking switch 61. When the detection tongue 4 is not ejected, the abutting block 41 is separated from the locking block 51, at this time, if the scissor tongue 3 is ejected, the locking block 51 can move towards the scissor tongue 3 under the action of the locking spring 52 to be matched with the locking groove 31 arranged at the inner end of the scissor tongue 3 so as to lock the scissor tongue 3, and the locking block 51 can trigger the locking switch 61 at the same time of locking, so that the scissor tongue 3 can be prevented from being compressed and retracted into the shell 1 of the lock body under the action of external force after being locked; if neither the detection tongue 4 nor the scissor tongue 3 is ejected, the door is in a virtual state at this time, and the lock block 51 abuts against the end face of the lock groove 31 and cannot be engaged with the lock groove 31, that is, the scissor tongue 3 cannot be locked.

S3: if the locking block 51 triggers the locking switch 61, the driving assembly 7 will drive the main bolt 2 to pop up to lock.

In step S2, if the detecting tongue 4 is not ejected and the scissor tongue 3 is ejected, the locking block 51 can lock the scissor tongue 3 and trigger the locking switch 61, at this time, it can be determined that the door is closed and not in a virtual state, and the driving assembly 7 can drive the main latch tongue 2 to eject, so as to achieve automatic locking. And if the detection tongue 4 is not popped out and the scissor tongue 3 is not popped out, namely when the door is in a virtual covering state, the locking block 51 cannot be matched with the scissor tongue 3 for locking, the locking block 51 cannot trigger a locking switch, the driving component 7 has no effect, automatic locking cannot be realized, hard impact between the main spring bolt 2 and the door buckle plate 9 when the main spring bolt is popped out in the virtual covering state can be avoided, and the service life of the lock body is further ensured.

In the above embodiment, as shown in fig. 10, in step S3, the driving assembly 7 ejects the driving main bolt 2 to the lock, that is, the driving assembly 7 drives the main bolt 2 to eject to the trigger lock switch 62; and further includes step S4 after step S3: after the locking switch 62 is triggered after locking, the motor 71 rotates in reverse to the home position.

That is, by providing the locking switch 62, when the main bolt 2 is ejected to the point where it triggers the locking switch 62, it indicates that the main bolt 2 is ejected to the position and locking is achieved, and at the same time, after locking (after the locking switch 62 is triggered), the motor 71 is rotated in reverse to the home position. Specifically, when the motor 71 rotates to the second trigger 73 of the driving assembly to trigger the reset switch 63, it indicates that the motor 71 has returned to the original position, i.e. the motor 71 is located at the position of the motor 71 before the intelligent door lock is locked. The motor 71 is located at the original position, namely the intelligent door lock is located at the position of the motor 71 before locking, after locking, unlocking can be achieved through reverse rotation of the motor 71, mechanical unlocking can also be achieved through a key, when the motor 71 rotates in the reverse direction to the original position, a user does not need to overcome resistance of the motor 71 when mechanically unlocking through the key, and mechanical unlocking is facilitated.

In the above embodiment, as shown in fig. 11, after step S4, step S5 is further included: after locking, if the detecting tongue 4 pops up, an alarm signal is sent out.

After the door is closed and locked, the main bolt 2 and the scissor bolt 3 are both in a popup state, the detection bolt 4 is in a non-popup state, and at the moment, if the detection bolt 4 pops up, an alarm signal is sent out to remind a user to check. Specifically, by providing the detection switch 64, the detection switch 64 can be triggered to send out an ejection signal when the detection tongue 4 is ejected, and if the ejection signal is received after locking, a failure is indicated, and an alarm is given to the user.

In the above embodiment, step S3 further includes: if the locking switch 61 is not triggered, an alarm signal is sent out. That is, if the locking switch 61 is triggered, it indicates that the scissor tongue 3 is in the pop-up state and locked by the locking block 51, at this time, the driving assembly 7 will drive the main tongue 2 to pop up for locking, if the locking switch 61 is not triggered, it indicates that the door is in the virtual state, the scissor tongue 3 and the detection tongue 4 are both in the compressed state, at this time, the user is warned, and the driving assembly 7 is not operated, so as to avoid hard impact between the main tongue 2 and the door buckle plate, and ensure the service life of the main tongue 2.

Specifically, judge the state that detects the tongue through setting up detection switch, when detecting the tongue pressurized and retract in the casing, can trigger and detect the tongue and send detection signal, and when detecting the tongue and pop out, should detect the tongue and can trigger detection switch and send out and pop out the signal, can refer to following three kinds of condition specifically:

the first condition is as follows: when the detection switch sends out a detection signal and the locking switch sends out a locking signal, the driving assembly drives the main bolt to pop out so as to realize locking;

case two: when the detection switch sends a detection signal but the locking switch does not send a locking signal, the door is in a virtual state, the driving assembly cannot drive the main bolt to pop out, and the alarm device can send an alarm signal to prompt a user;

case three: after locking (after the locking switch is triggered and sends out a locking signal), if the detection switch sends out an ejecting signal, the alarm device can send out an alarm signal to prompt a user.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.