CN106401304B

CN106401304B - Motor lock

Info

Publication number: CN106401304B
Application number: CN201610046198.6A
Authority: CN
Inventors: 於雅良
Original assignee: Zhejiang Anny Intelligent Door & Window Co ltd
Current assignee: Zhejiang Anni intelligent door and window Co.,Ltd.
Priority date: 2016-01-16
Filing date: 2016-01-16
Publication date: 2020-06-30
Anticipated expiration: 2036-01-16
Also published as: CN106401304A

Abstract

A motor lock belongs to the field of electronic locks and aims to solve the problem that safety performance is reduced due to an unlocking system of a spare key. The electric lock comprises a motor, a lock tongue, a lock plate, a lock cylinder, a door position sensor, a lock tongue position sensor and a control unit, wherein the motor lock comprises two independent transmission systems driven by a key and a motor and is connected with the same lock tongue connecting plate, the key driving system comprises discontinuous teeth (such as single teeth or double teeth) which are meshed with racks on the lock tongue connecting plate, illegal unlocking actions without identity authentication are carried out, and when the control unit detects the illegal unlocking actions, the control unit controls the motor driving system to lock so as to prevent the key driving system from unlocking; and in the gap stroke between the end of the discontinuous previous tooth driving rack and the unmeshed next tooth, the driving motor restores the position of the lock tongue, thereby avoiding the 'safety short plate' of the mechanical key standby unlocking system of the electronic lock.

Description

Motor lock

Technical Field

The invention belongs to the field of electronic locks, and particularly relates to a motor lock.

Background

The common transmission mode of the motor lock is that a motor rotates a poking rod shaft through a gear transmission system, the poking rod drives teeth on a bolt to move the bolt, a key passes through a sheet-shaped rod on a lock cylinder to be in driving connection with the end of the poking rod shaft, and the poking rod shaft is rotated, so that the bolt is driven to move.

Because the illegal unlocking difficulty of electronic technologies such as passwords, fingerprints and the like is far higher than that of a mechanical lock, if a key exists in the electric lock, the unlocking time is only 3 seconds at the fastest speed by using the technology. The reliability of the mechanical lock in the prior art is far higher than that of an electronic lock; even if the mechanical lock fails, the mechanical lock can be unlocked by a key or a special mechanical unlocking tool, and if the mechanical lock cannot be unlocked, the lock core can be drilled off, the unlocking tongue can be hooked to open the door, and then the lock core can be replaced; therefore, the mechanical unlocking system is often used as a spare wheel of an electronic lock to be matched, and then becomes a safety short plate of the lock.

Disclosure of Invention

The invention aims to solve the technical problem of providing an electric lock, which improves and promotes a safety short plate caused by adopting a mechanical unlocking system. The illegal unlocking time is prolonged, and even the lock cannot be unlocked.

In order to achieve the purpose, the invention adopts the electric lock which comprises a motor, a bolt, a lock plate, a lock cylinder, a door position sensor, a bolt position sensor and a control unit, wherein the electric lock comprises two independent transmission systems of a key driving system and a motor driving system, and is connected with the same bolt connecting plate, and the key driving system comprises discontinuous teeth (such as single teeth or double teeth) which are meshed with racks on the bolt connecting plate.

Illegal unlocking action without identity authentication is detected by the control unit, and the control unit controls the motor driving system to lock so as to prevent the key driving system from unlocking and try to recover the position of the lock tongue.

Preferably, the discontinuous teeth (such as single teeth or double teeth) of the key-driven transmission system are directly meshed with the racks on the lock tongue connecting plate, and the whole unlocking stroke of the key unlocking needs to have a stroke of more than two teeth, obviously, after the illegal unlocking action without identity authentication is detected by the control unit, the control unit controls the motor-driven system to lock so as to prevent the key-driven system from unlocking, and if the unlocking cannot be prevented, the driving motor can recover the lock tongue position within a clearance stroke (single teeth, about 300 degrees) between the end of the discontinuous previous tooth-driven rack of the key-driven system and the unmeshing of the next tooth.

Preferably, the motor drives the bolt position to stay in a position where the teeth on the lock cylinder cannot engage the racks in the unlocking direction. Because if the key is to be unlocked, it must be reversed back to the locked side before it can be engaged again on the unlocked side after locking.

Preferably, the lock tongue position sensor is a linear encoder or a rotary encoder, so that small errors are realized, and small movement is detected.

Preferably, the motor drive transmission system is that a gear on the gear motor is directly meshed with a rack on the bolt connecting plate. Becomes the simplest transmission mode.

Preferably, the key hole of the lock cylinder is provided with an anti-prying cover plate for closing, so that the technical unlocking time is further prolonged, and an alarm is given in advance. The key port of the lock cylinder is provided with the anti-prying cover plate and is linked with the electronic anti-prying alarm, namely, the anti-prying cover plate needs to be disassembled to unlock the lock by using a key and an unlocking tool, so that the anti-prying alarm can be caused, even if the lock cylinder is drilled, the anti-prying alarm can also be caused.

Preferably, commercial power is supplied in parallel with an indoor battery and an outdoor battery to prevent the failure caused by cutting off the commercial power and taking out the outdoor battery.

When the electronic or mechanical damage occurs, or the owner forgets the password, and the authorized person opens the door instead of the owner, the method for unlocking the door by the owner comprises the steps of cutting off the commercial power, taking out the outdoor battery, pressing the discharge button, and waiting for the internal battery to be consumed, for example, for 1 hour. Then the lock is unlocked by a key or a technical unlocking tool.

The motor lock has the following advantages:

safe, basic solutionKey unlocking system equipped for electric lockA resulting safety stub. The preliminary estimation shows that the rotating speed of the key unlocking is 300 degrees when the rotating speed reaches 800RPM, the locking speed of the control unit can be faster, and the later tooth can be engaged in advance to be successfully unlocked. Considering the time required to accelerate from speed 0 to 800RPM, the probability is almost zero, although the performance of the system is good.

The system is simple and reliable, and the cost is low.

Drawings

Fig. 1 is a schematic structural view.

Fig. 2 shows the starting position of the control unit controlling the motor to start the anti-picking lock when the lock is unlocked.

Fig. 3 shows the starting position of the control unit controlling the motor to actuate the anti-picking lock when locked.

Fig. 4 shows the optimal position for the control unit to control the motor to stay at the locked position.

As shown in fig. 1, part 1 is a lock tongue, part 2 is a lock tongue, part 3 is a door position sensor assembly, part 4 is a position sensor assembly, part 5 is a port, part 6 is a control unit, part 7 is a gear motor, part 8 is a rack, part 9 is a lock tongue connecting piece, and part 10 is a standard lock cylinder.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

see fig. 1, port 5 contains entrance guard's communication signal, and the control unit 6 can verify the signal of unblanking that receives, if confirm that current signal of unblanking is effective, control unit 6 drives rack 8 through the motor 7 control that has the reduction gear, realizes that the motor lock is normally unblanked.

When the door is closed, the door position sensor assembly 3 detects that the door reaches a locking position, the control unit 6 controls the motor 7 to start locking and rotate, the rack 8 is driven, the bolt connecting plate 9 moves towards a locking direction, the lock position sensor assembly 4 detects the moving distance and speed of the bolt, the bolt stops when the bolt moves to a set distance, and then the bolt 1 is inserted into the lock plate 2 and is in a locking state.

As a spare key driving system, a key drives the bolt connecting plate 9 through the lock cylinder 10 to manually unlock and lock.

When the lock position sensor assembly 4 detects that the lock tongue 1 moves, the control unit 6 checks an entrance guard unlocking or locking flag bit on an internal memory, and if the entrance guard unlocking or locking flag bit is in normal open locking, the entrance guard unlocking or locking flag bit is in normal open locking; if not, the motor positive and negative rotation movement flag bit is checked, if yes, the system is mistakenly unlocked, and if not, the external force is illegally unlocked and locked.

For illegal unlocking, the control unit 6 controls the motor 7 to lock, and if the lock position sensor assembly 4 detects that the lock tongue moves to the position where the teeth on the lock cylinder 10 corresponding to key unlocking are away from the teeth on the rack of the lock tongue connecting plate 9, as shown in fig. 2 and 3, the motor is started to lock to the original position.

The original position of locking stays in a position where the teeth on the key-unlocked cylinder 10 cannot engage with the teeth on the bolt carrier 9 on the unlocking side, see fig. 4.

In fig. 1, the lock position sensor assembly 4 is a linear encoder to precisely control the position of the deadbolt and to sensitively detect small movements of the deadbolt.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.

Claims

1. The utility model provides a motor lock, includes motor, spring bolt, locking plate, lock core, door position sensor, lock position sensor, the control unit, its characterized in that, motor lock include two sets of independent transmission systems of key actuating system and motor actuating system, be connected with same spring bolt connecting plate, key actuating system contain the rack toothing on discontinuous tooth and the spring bolt connecting plate, when the control unit detected the illegal removal of spring bolt, in the clearance stroke between the discontinuous former tooth drive rack end, and the last tooth has not yet meshed, the control unit driving motor resumes the spring bolt position of original settlement.

2. The utility model provides a motor lock, includes motor, spring bolt, locking plate, lock core, door position sensor, lock position sensor, the control unit, its characterized in that, motor lock include key actuating system and motor actuating system's two sets of independent transmission system, be connected with same spring bolt connecting plate, key actuating system contain the rack toothing on discontinuous tooth and the spring bolt connecting plate, when the control unit detected the illegal removal of spring bolt, the locking of control unit control motor actuating system to prevent the spring bolt to remove, if still can not prevent to unblank, then in the discontinuous preceding tooth drive rack end, the clearance stroke between the tooth meshing yet of the next tooth, the control unit driving motor resumes the spring bolt position of original settlement.

3. A motor lock according to claim 1 in which, on locking, the control unit drives the motor to park the bolt to a position in which the discrete teeth cannot engage the rack in the unlocking direction.

4. The electromechanical lock of claim 1, wherein said keyed drive system is directly engaged with a rack on the strike plate using discrete teeth of a standard key cylinder.

5. The electromechanical lock of claim 1 wherein the motor drive system is a gear on the gear motor directly engaging a rack on the latch plate.

6. The electromechanical lock of claim 1, wherein said lock position sensor is a linear encoder or a rotary encoder.

7. The electromechanical lock of claim 1, having mains power and outdoor and indoor battery power.