CN209958969U

CN209958969U - Two-wire system communicable electronic lock

Info

Publication number: CN209958969U
Application number: CN201821516583.3U
Authority: CN
Inventors: 周冲; 宛立君
Original assignee: Suzhou Yunchao Cultural Media Co Ltd
Current assignee: Suzhou Yunchao Cultural Media Co Ltd
Priority date: 2018-09-17
Filing date: 2018-09-17
Publication date: 2020-01-17
Anticipated expiration: 2028-09-17

Abstract

The utility model discloses an but electronic lock of two line system communication, include lock body, lock core, outdoor panel, indoor panel and be fixed in the hasp box on the door frame. The lock body device comprises a lock shell, a panel, a main lock tongue, a latch bolt, a safety bolt, a door magnet, a lock cylinder and a lock body motor, wherein the lock shell is provided with the latch bolt, the main lock tongue and the safety bolt, a handle thumb wheel, a transmission arm and a transmission part are arranged in the lock shell, the handle thumb wheel is connected with the transmission arm to realize power transmission, the lock body motor is provided with a telescopic ejector rod, a bolt stop block for transmitting the power of the telescopic ejector rod is arranged between the telescopic ejector rod and the handle thumb wheel, the lock body motor is powered on under the control of a control circuit, the handle thumb wheel is controlled to swing to realize switching action, a microprocessor, a signal conditioning and filtering circuit, a modulation and demodulation control circuit, a motor driving circuit and a sensor are arranged in the lock body, the two-wire system power supply and communication functions are adopted, the wire.

Description

Two-wire system communicable electronic lock

Technical Field

The utility model belongs to the technical field of the tool to lock technique and specifically relates to an but electronic lock of two line system communication.

Background

The traditional electronic lock is usually only provided with an inductor for monitoring the anti-picking lock on an outdoor panel, and the requirement on the inductor is low; can connect the electronic lock of network, generally also only increased a magnetism inductor in the lock body, the information of conveying for cell-phone APP only is: whether the door lock is closed. However, if the number of structural points to be monitored in the lock body of the lock is large, and the number of used sensors is correspondingly increased, each sensor in a narrow space adopts a two-wire mode to transmit information to a control system, the wire harness is too much, so that great troubles are brought to the installation and maintenance of the lock, and the safety and the stability are poor, and the service life is short.

In the existing electronic lock body, only one set of motor drive wires (two wires) is usually provided, and if additional signal detection requirements are met, the signal wires connected with the outside of the lock body are added while the detection sensor is added. When detecting sensor is more, can lead to the pencil more, finally can lead to the lock body to be too big with the connector that indoor outer panel is connected, cause the secondary trompil during the installation of going to the door, produce the extra cost, influence the installation.

Meanwhile, in the existing electronic lock body, a positive voltage and a negative voltage are applied to a motor driving line (two lines) to drive the motor to rotate forwards (or reversely); the motor can be driven to rotate reversely (or rotate forwards) by applying negative and positive voltages to the motor drive wires (two wires). Because the connector that the lock body is connected with indoor outer panel is placed in the door opening of installation lock body, when the outdoor panel of tool to lock was destroyed to illegal intruder, through the tool to lock mounting hole on the door, just can touch motor drive line (two lines), simple applied voltage both can drive lock body separation and reunion motor, and then open lock body main spring bolt, implements illegal actions such as burglary, robbing the lasso, this kind of drive mode has very big potential safety hazard.

Disclosure of Invention

The utility model relates to a purpose is: in view of the huge hidden danger of the existing intelligent electronic lock in the aspect of safety and the problems of inconvenience in installation and maintenance of electric wires with more wiring harnesses and the like, a two-wire system communicable electronic lock is designed and provided. The utility model discloses in, adopt the design method of "modulation/demodulation" for be connected between lock body and the indoor outer panel only has two lines, both can realize power transmission, also can realize data communication, can turn into digital signal with the signal that each sensor spreads in the tool to lock, send for the tool to lock control panel that uses this lock body, when supporting a plurality of sensors and need not increase extra pencil, simple to operate.

The utility model discloses in, the lock body motor is that the tool to lock control panel that needs use this lock body sends "corotation/reversal" communication instruction through "modulation/demodulation" and controls the driven, and it is unable drive lock body separation and reunion motor to exert voltage simply, consequently has very high security, makes things convenient for the life at home.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a two-wire system communication electronic lock comprises a lock body, a lock core, an outdoor panel, an indoor panel (including a safety bolt anti-locking button) and a lock catch box (including a door magnet) fixed on a door frame.

The lock body includes the lock shell, fixes side board, main spring bolt, latch bolt, safety tongue on the lock shell, be used for safety warning's door magnetism, lock core and lock body motor, the lock shell is equipped with latch bolt, main spring bolt and safety tongue from top to bottom in proper order, built-in handle thumb wheel subassembly, driving arm and with the driving medium that swing control was realized to the lock body motor, handle thumb wheel subassembly with the driving arm is connected and is realized power transmission, the lock body motor is equipped with flexible ejector pin, flexible ejector pin with be equipped with the transmission between the handle thumb wheel subassembly the bolt dog of flexible ejector pin power makes under control circuit implementation control the lock body motor gets electric flexible ejector pin and stretches out, controls handle thumb wheel subassembly and the handle synchronous working on the outdoor panel, pushes down the handle and realizes the action of opening the door outdoors. When the key matched with the lock cylinder is used for opening the door, the key is rotated, the shifting block on the lock cylinder shifts the key shifting block on the lock body to work backwards, the main lock tongue is driven to retract, and the latch bolt is driven to retract under the combined action of the transmission arm and the handle shifting wheel assembly, so that unlocking is realized.

The lock body is characterized in that a microprocessor, a signal conditioning filter circuit, a modulation and demodulation control circuit, a motor driving circuit and a plurality of sensors are also arranged in the lock body, the microprocessor is electrically connected with the signal conditioning filter circuit and is externally electrically connected with the modulation and demodulation control circuit, the motor driving circuit controls the motor of the lock body to work, and the sensors are electrically connected with the signal conditioning filter circuit.

Further, the microprocessor is arranged on the driving board and comprises a MCU1(micro control Unit, single chip microcomputer) and a MCU2, the MCU1 is located inside the lock body and is in a low power consumption operation state at ordinary times, signals of the power supply are detected in a circulating mode, when the signals change, the serial port of the MCU1 controls the MOS tube to modulate the signals, the modulated signals are demodulated to obtain information after the signals change is detected by current on the driving board, when the lock needs to be unlocked, the MCU2 controls the output of a +5V power supply, a voltage detection circuit in the lock body detects that high voltage is transmitted, the driving motor is considered, and the MCU1 controls an MOSFET (metal-oxide semiconductor field effect transistor) to not enter a modulation state but waits for the signals transmitted by the driving board.

Further, the sensors are pressure sensitive sensors including, but not limited to, a master bolt sensor, a deadbolt sensor, a key unlock sensor, and a lock body motor sensor.

Furthermore, the door magnet is tightly attached to the inner side of the side panel and is matched with the door magnet on the lock catch box fixed on the door frame to detect whether the door lock is illegally opened or moved.

Furthermore, the latch bolt is fixedly connected by a control rod, the control rod is sleeved with a return spring and a check ring, and the check ring is shifted by the handle shifting wheel assembly to realize telescopic control.

Furthermore, the safety tongue is provided with a fixedly connected expansion plate in the lock body, the expansion plate is provided with a shifting notch, and a trigger which is controlled by the safety tongue reverse locking button on the indoor panel through manual rotation is arranged in the shifting notch.

Compared with the prior art, implement the utility model discloses an but electronic lock of two-wire system communication has following beneficial effect:

1. the two-wire system power supply and communication functions are adopted, so that the wire cost is lower;

2. the two-wire system modulation and demodulation is adopted, so that the volume is smaller, and the operation of other devices in the shell with limited capacity is not easily interfered;

3. the installation and maintenance are convenient.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.

Fig. 1 is a schematic front view of a two-wire communicable electronic lock according to the embodiment;

fig. 2 is a schematic back structural view of the two-wire communicable electronic lock according to the embodiment;

fig. 3 is a schematic diagram of a sensor arrangement inside the lock body according to the embodiment;

fig. 4 is a schematic view of the internal structure of the lock body according to the present embodiment;

fig. 5 is a schematic diagram illustrating a lock state of the two-wire communicable electronic lock according to the embodiment;

fig. 6 is a schematic view illustrating an unlocked state of the lock body of the two-wire communicable electronic lock according to the embodiment;

FIG. 7 is a schematic control diagram of the two-wire system communication electronic lock according to the present embodiment;

fig. 8 is a schematic circuit diagram of a part of the modem control circuit according to the present embodiment;

wherein: 1-lock case, 2-side panel, 3-latch, 31-control lever, 32-retainer, 33-return spring, 4-main latch, 5-safety latch, 51-expansion plate, 6-handle wheel assembly, 7-driving arm, 8-lock cylinder, 9-driving plate, 1001-lock motor sensor, 1002-latch sensor, 1003-main latch sensor, 1004-key unlock sensor, 1005-safety latch sensor, 11-anti-lock button bolt fixing block, 111-trigger, 12-door magnet, 13-lock motor, 14-bolt stop, 15-indoor handle, 16-outdoor handle, 17-external wire, 18-key wheel block, 22-outdoor panel, 23-safety latch anti-lock button, 24-indoor panel, 91-motor working detection switch; 92-latch detecting switch; 93-main bolt detection switch; 94-key unlock detection switch; 95-safety tongue detecting switch.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1, 2, 4, 5, and 6, the present embodiment provides a two-wire system communication electronic lock, which includes a lock body, a lock cylinder, an outdoor panel, an indoor panel (including a safety bolt anti-lock button), and a lock box (including a door magnet) fixed on a door frame.

As shown in fig. 4, the lock body device comprises a lock shell 1, a side panel 2 fixed on the lock shell 1, a main bolt 4, a latch bolt 3, a safety bolt 5, a door magnet 12 for safety alarm, a lock core 8 and a lock body motor 13, the lock shell 1 is provided with a latch bolt 3, a main lock bolt 4 and a safety bolt 5 from top to bottom in sequence, a handle thumb wheel assembly 6, a transmission arm 7 and a transmission piece for realizing swing control with the lock body motor 13 are arranged in the lock shell, the handle shifting wheel assembly 6 is connected with the transmission arm 7 to realize power transmission, the lock body motor 13 is provided with a telescopic ejector rod, a bolt stop 14 for transmitting the power of the telescopic mandril is arranged between the telescopic mandril and the handle thumb wheel 6, under the control of the control circuit, the lock motor 13 is powered to push the ejector rod to extend out, the lever handle thumb wheel assembly 6 and the outdoor outer lever handle 16 are controlled to work synchronously, and the lever handle is pressed down outdoors to realize the door opening action. When the key matched with the lock cylinder is used for opening the door, the key is rotated, the shifting block on the lock cylinder 8 shifts the key shifting block 18 on the lock body to work backwards, the main lock tongue 4 is driven to retract, and the inclined tongue 3 is driven to retract under the combined action of the transmission arm 7 and the handle shifting wheel assembly 6, so that unlocking is realized.

The lock body is characterized in that a microprocessor, a signal conditioning filter circuit, a modulation and demodulation control circuit, a motor driving circuit and sensors are also arranged in the lock body, the microprocessor is electrically connected with the signal conditioning filter circuit and is externally electrically connected with the modulation and demodulation control circuit, the motor driving circuit controls the motor of the lock body to work, and the sensors are electrically connected with the signal conditioning filter circuit.

A further embodiment is that the microprocessor is disposed on the drive board 9, and includes two units, namely, an MCU1(micro cntrallerunit, single chip microcomputer) and an MCU2, the MCU1 is disposed inside the lock body and is in a low power consumption operation state at ordinary times, and cyclically detects a signal of the power supply, when the signal changes, the serial port of the MCU1 controls the MOS transistor to modulate the signal, at this time, after the current on the drive board 9 detects the signal change, the modulated signal is demodulated to obtain information that the serial port receives the information, when the lock needs to be unlocked, the MCU2 controls the output of the +5V power supply, at this time, the voltage detection circuit in the lock body detects that a high voltage is transmitted, which is considered as a drive motor, and at this time, the MCU1 controls the MOSFET (metal-oxide semiconductor field effect transistor) not to enter a modulation state.

In a further embodiment, the sensors are pressure sensitive sensors, including a master bolt sensor 1003, a deadbolt sensor 1002, a strike tongue sensor 1005, a key unlock sensor 1004, and a lock motor sensor 1001.

In a further embodiment, the door magnet 12 is tightly attached to the inner side of the side panel 2, and is matched with the door magnet on the keeper fixed on the doorframe to detect whether the door lock is illegally opened or moved.

The further embodiment is that the latch bolt 3 is fixedly connected by a control rod 31, the control rod 31 is sleeved with a return spring 33 and a retainer ring 32, and the retainer ring 32 is shifted by the handle shifting wheel assembly 6 to realize telescopic control.

A further embodiment is that the safety bolt 5 is provided with a retractable plate 51 fixedly connected in the lock body, the retractable plate 51 is provided with a toggle notch, a trigger 111 working together with the anti-lock button bolt fixing block 11 is arranged in the toggle notch, and the anti-lock button bolt fixing block 11 is controlled by the manual rotation of the safety bolt anti-lock button 23 on the indoor panel 24 to realize the opening and closing of the bolt.

In this embodiment, the external power supply 17 of the lock body is only composed of two lines, including a power supply and a control function integrated together, and signals of all the sensors are transmitted to the outside through the two lines by means of a modulation and demodulation technology, so that the space occupied by the lock body is saved, and the subsequent maintenance and replacement are facilitated.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes, modifications, substitutions and alterations can be made without departing from the spirit of the present invention within the knowledge of a user having ordinary skill in the art, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a but electronic lock of two-wire system communication, includes lock body, lock core, outdoor panel, indoor panel and is fixed in the hasp box on the door frame, its characterized in that:

the lock body comprises a lock shell, a side panel, a main spring bolt, an oblique spring bolt, a safety bolt, a door magnet for safety alarm, a lock cylinder and a lock body motor, wherein the side panel, the main spring bolt, the oblique spring bolt, the safety bolt, the door magnet for safety alarm, the lock cylinder and the lock body motor are fixed on the lock shell, the oblique spring bolt, the main spring bolt and the safety bolt are sequentially arranged on the lock shell from top to bottom, a handle thumb wheel assembly, a transmission arm and a transmission part for realizing swing control with the lock body motor are arranged in the lock shell, the handle thumb wheel assembly is connected with the transmission arm to realize power transmission, a telescopic ejector rod is arranged on the lock body motor, a bolt stop block for transmitting the power of the telescopic ejector rod is arranged between the telescopic ejector rod and the handle thumb wheel assembly, under the control of a control circuit, the lock body motor is electrified, the telescopic ejector rod extends out, the key is rotated, and the shifting block on the lock cylinder shifts the key shifting block on the lock body to work backwards and simultaneously drives the main lock tongue to retract, so that the inclined bolt is driven to retract under the combined action of the transmission arm and the handle shifting wheel assembly to realize unlocking;

2. The two-wire communicable electronic lock of claim 1, wherein: microprocessor locates on the drive plate, including two units of MCU1 and MCU2, MCU1 is located inside the lock body, be in low-power consumption running state at ordinary times, the signal of circulation detection power, after the signal changes, MCU 1's serial ports control MOS pipe modulates the signal, the current on the drive plate detects the signal change back this moment, the signal demodulation serial ports that will modulate has received information, when needing to unblank, MCU2 control output +5V power, voltage detection circuit in the lock body detects that high voltage transmits this moment, consider to want driving motor, MCU1 control MOSFET does not get into the modulation state this moment, but waits for the signal that the drive plate sent.

3. The two-wire communicable electronic lock of claim 1, wherein: the sensors are pressure sensitive sensors including but not limited to a main bolt sensor, a latch bolt sensor, a safety bolt sensor, a key unlock sensor and a lock body motor sensor.

4. The two-wire communicable electronic lock of claim 1, wherein: the door magnet is tightly attached to the inner side of the panel and is matched with the lock catch box fixed in the door frame to detect whether the door lock is illegally opened or moved.

5. The two-wire communicable electronic lock of claim 1, wherein: the latch bolt is fixedly connected by a control rod, the control rod is sleeved with a return spring and a check ring, and the check ring is shifted by the handle shifting wheel to realize telescopic control.

6. The two-wire communicable electronic lock of claim 1, wherein: the safety tongue is provided with a fixedly connected telescopic plate in the lock body, the telescopic plate is provided with a shifting notch, and a trigger controlled by a manual knob is arranged in the shifting notch.