CN2438785Y - High-reliable infrared remote-control puzzle lock - Google Patents

High-reliable infrared remote-control puzzle lock Download PDF

Info

Publication number
CN2438785Y
CN2438785Y CN 00223968 CN00223968U CN2438785Y CN 2438785 Y CN2438785 Y CN 2438785Y CN 00223968 CN00223968 CN 00223968 CN 00223968 U CN00223968 U CN 00223968U CN 2438785 Y CN2438785 Y CN 2438785Y
Authority
CN
China
Prior art keywords
output
lock
driver
triode
electric control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 00223968
Other languages
Chinese (zh)
Inventor
周道齐
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 00223968 priority Critical patent/CN2438785Y/en
Application granted granted Critical
Publication of CN2438785Y publication Critical patent/CN2438785Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Abstract

The utility model relates to a high-reliable infrared remote-control code lock, which comprises a power supply unit, an infrared signal emitter 1, and an infrared signal receiver 2; the utility model also comprises a work unit, and a spare work unit, wherein, the power supply unit is only connected with the work unit; the work unit comprises a monolithic machine circuit 3, a code disc 4, an electric control lock driver 5, a mechanical lock driver 6, an electric control lock 7, and a mechanical lock 8; the spare work unit comprises a communication interface 9 capable of connecting with an external connection computer and an external connection power, a spare monolithic machine circuit 10, a spare electric control lock driver 11, and a spare mechanical lock driver 12. The utility model has the advantages of small volume, and reliable work, and the utility model provides the condition for the extensive use of an electronic code lock.

Description

A kind of highly reliable infrared remote controlled code lock
The utility model relates to a kind of remote control lock, particularly a kind of infra-red remote control coded lock.
Electronic password lock is compared with mechanical cylinder lock, because it does not have keyhole, therefore can prevent to use master key, and technological means such as Unlocking gun are opened lockset, also do not have the trouble that must change lock after the key loss.The scheme that relates to electronic password lock at present is many, but the ubiquity complex structure, bulky shortcoming.Baroque control circuit just breaks down easily, once control circuit partly breaks down (as component wear), lockset can't be opened, and this is bigger to the trouble that the user brings, because the price of electronic password lock is far above mechanical cylinder lock.This also is the main cause that electronic password lock can not be used widely.
The purpose of this utility model is: a kind of highly reliable infrared remote controlled code lock is provided, and its circuit structure is comparatively simple, and functional reliability is strong, and when control circuit breaks down, can lockset be opened by standby working cell.
The utility model is achieved in that a kind of highly reliable infrared remote controlled code lock, comprises power subsystem, Infrared Projector (1), infrared signal receiver (2); It is characterized in that: also include a working cell and a standby working cell, power subsystem only joins with the working cell; The working cell comprises the single chip circuit (3) that receives infrared signal receiver (2) output signal, can be to the code-disc (4) of single chip circuit (3) presetting cipher, electric control lock driver (5), mechanical lock driver (6) that the output signal of single chip circuit (3) is amplified, be subjected to the electric control lock (7) of electric control lock driver (5) control action, be subjected to the mechanical lock (8) of mechanical lock driver (6) control action; Standby working cell comprise can with outer computer and the joining communication interface of external power supply (9), receive the standby single chip circuit (10) of communication interface (9) input signal, the standby electric control lock driver (11) that standby single chip circuit (10) one tunnel output signals are amplified and can be controlled electric control lock (7), the stand-by machine lock driver (12) that another road output signal of standby single chip circuit (10) is amplified and can be controlled mechanical lock (8).
In the above-mentioned highly reliable infrared remote controlled code lock, described single chip circuit (3) is made of single-chip microcomputer U1 and conventional peripheral circuit; Described code-disc is made up of 4 DIP switch MK that selectively export high potential or electronegative potential; Electric control lock driver (5) is by phase inverter U4 and be connected on the triode T2 of its output, the combination switch pipe that T3 forms constitutes, and the electromagnetic control coil L of electric control lock (7) is connected on the colelctor electrode of output triode T3; Described mechanical lock driver (6) is made of a forward driver and a reverse driven, forward driver comprises the photoelectrical coupler U5 that receives positive rotaring signal, be subjected to the combination switch pipe of forming by triode T6, T7 of U5 output control, the output of combination switch pipe is joined with the power supply terminal A that controls motor ZD, also comprise the phase inverter U12 that receives positive rotaring signal, be subjected to the combination switch pipe of being made up of triode T10, T11 of U12 output control, the output of this combination switch pipe is joined with the power supply terminal B that controls motor ZD; Reverse driven comprises the photoelectrical coupler U6 that receives reverse signal, what be subjected to U6 output control forms the combination switch pipe by triode T8, T9, the power supply terminal B of the output of combination switch pipe and motor ZD joins, also comprise phase inverter U11, be subjected to the combination switch pipe of being made up of triode T12, T13 of U11 output control, the power supply terminal A of the output of combination switch pipe and motor ZD joins; Corresponding mechanical lock (8) by lockset and be bound up on motor ZD and the lockset swingle between transmission mechanism constitute; Described mechanical lock driver (6) or constitute by triple gate U13A~U13D and stepper motor, the output and stepper motor coil C, the D that wherein receive U13A, the U13B of single chip circuit (3) rotating signal join, and corresponding mechanical lock (8) is made up of the fixture block mechanism that is connected on the step motor shaft.
In the aforesaid highly reliable infrared remote controlled code lock, described communication interface (9) comprises the RS232 interface of an additional power source interface and a single supply; Standby single chip circuit (10) comprises the voltage-stabilized power supply that three terminal regulator U10 constitutes, the input circuit that triode T1, photoelectrical coupler U9 constitute, and single-chip microcomputer U2; Standby electric control lock driver (11) comprises phase inverter U7, formed by the on-off circuit that is made of triode T4, T5 of electromagnetic coil L power on/off of the electric control lock controlled (7) of its output control; Stand-by machine lock driver (12) comprises the photoelectrical coupler U8 of receiving inputted signal, and what be subjected to its output control can carry out the on-off circuit that break-make is controlled to the working power positive pole of motor ZD by what triode T14, T15 formed; And the phase inverter U15 of receiving inputted signal, what be subjected to its output control can carry out the on-off circuit that break-make is controlled to the working power negative pole of motor ZD by what triode T16, T17 formed; Described stand-by machine is locked driver (12) or is made of triple gate U14A~U14D and stepper motor, the output and stepper motor coil C, the D that wherein receive U14A, the U14B of standby single chip circuit (10) rotating signal join, and the positive pole of voltage-stabilized power supply output also links with the control end of the triple gate U13A~U13D of working cell.
Compared with the prior art, the utility model has adopted more rational circuit structure, and has increased a standby working cell.Make coded lock functional reliability of the present utility model improve greatly, both made and broken down, also can lockset be opened by standby working cell.Control and increased under the situation of a standby working cell carrying out twin-lock (electric control lock one mechanical lock), still have the volume features of smaller.When the utility model had solved the electronic password lock operating circuit and breaks down, the problem that lockset can't be opened was for the extensive use of electronic password lock provides condition.
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail:
Fig. 1 is the utility model circuit structure block diagram;
Fig. 2 is the circuit theory diagrams of embodiment 1;
Fig. 3 is the mechanical lock organigram of embodiment 1;
Fig. 4 is the mechanical lock driver of embodiment 2 and the circuit theory diagrams of stand-by machine lock driver;
Fig. 5 is the mechanical lock organigram of embodiment 2;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the another kind of code-disc circuit theory diagrams of embodiment 1.
Part label implication is as follows among the figure: among Fig. 5, and the 13-fixture block; The 14-slide block; The 15-slide bar.Among Fig. 6,16-automobile lock body; The 17-screw mandrel; The 18-stepper motor.Among Fig. 3, the 19-motor; The 20-reduction gearing; The 21-square sleeve; 22-lockset rotating handles.
Embodiment 1: highly reliable infrared remote controlled code lock comprises power subsystem, Infrared Projector 1, infrared signal receiver 2; Also include a working cell and a standby working cell, power subsystem only joins with the working cell; Referring to Fig. 1, the working cell comprises the single chip circuit 3 that receives infrared signal receiver 2 output signals, can be to the code-disc 4 of single chip circuit 3 presetting ciphers, electric control lock driver 5, mechanical lock driver 6 that the output signal of single chip circuit 3 is amplified, be subjected to the electric control lock 7 of electric control lock driver 5 control actions, be subjected to the mechanical lock 8 of mechanical lock driver 6 control actions; Standby working cell comprise can with outer computer and the joining communication interface 9 of external power supply, receive the standby single chip circuit 10 of communication interface 9 input signals, the standby electric control lock driver 11 that standby single chip circuit 10-road output signal is amplified and can be controlled electric control lock 7, the stand-by machine lock driver 12 that standby single chip circuit 10 another road output signals are amplified and can be controlled mechanical lock 8.
Referring to Fig. 2, single chip circuit 3 is made of single-chip microcomputer U1 and conventional peripheral circuit; Described code-disc 4 is made of 4 DIP switch MK that selectively export high potential or electronegative potential, also can be made of a kind of code-disc circuit shown in Figure 7; Electric control lock driver 5 is by phase inverter U4 and be connected on the triode T2 of its output, the combination switch pipe that T3 forms constitutes, and the electromagnetic control coil L of electric control lock 7 is connected on the colelctor electrode of output triode T3.Described mechanical lock driver 6 can be made of a forward driver and a reverse driven, forward driver comprises the photoelectrical coupler U5 that receives positive rotaring signal, be subjected to the combination switch pipe of forming by triode T6, T7 of U5 output control, the output of combination switch pipe is joined with the power supply terminal A that controls motor ZD, also comprise the phase inverter U12 that receives positive rotaring signal, be subjected to the combination switch pipe of being made up of triode T10, T11 of U12 output control, the output of this combination switch pipe is joined with the power supply terminal B that controls motor ZD.Reverse driven comprises the photoelectrical coupler U6 that receives reverse signal, what be subjected to U6 output control forms the combination switch pipe by triode T8, T9, the power supply terminal B of the output of combination switch pipe and motor ZD joins, also comprise phase inverter U11, be subjected to the combination switch pipe of being made up of triode T12, T13 of U11 output control, the power supply terminal A of the output of combination switch pipe and motor ZD joins; Corresponding mechanical lock 8 by lockset and be bound up on motor ZD with the lockset swingle between transmission mechanism (referring to Fig. 3) formation.The communication interface 9 of standby working cell comprises the RS232 interface of an additional power source interface and a single supply; Standby single chip circuit 10 comprises the voltage-stabilized power supply that three terminal regulator U10 constitutes, the input circuit that triode T1, photoelectrical coupler U9 constitute, and single-chip microcomputer U2; Standby electric control lock driver 11 by phase inverter U7, formed by the on-off circuit that constitutes by triode T4, T5 of electromagnetic coil L power on/off of the electric control lock controlled 7 of its output control.Stand-by machine lock driver 12 is by receiving the photoelectrical coupler U8 that is just transferring into signal, formed by the on-off circuit that constitutes by triode T14, T15 that can carry out break-make control of its output control to the working power positive pole of motor ZD, and receive the phase inverter U15 just transferring into signal, be subjected to the on-off circuit that constitutes by triode T16, T17 that can carry out break-make control of its output control to the working power negative pole of motor ZD.
The operating principle of present embodiment; After coded lock is installed,, press the K1 key and confirm, manually shut the door earlier by the electric control lock presetting cipher and the mechanical lock presetting cipher of code-disc 4 selected single-chip microcomputer U1 inside solidifications.As desire to open the door, should input electric control lock password and mechanical lock password respectively by infrared transmitter 1, infrared remote receiver 2 inputs to the code signal that receives the single-chip microcomputer U1 of working cell, U1 receives and checks the back by different delivery outlet output electric control lock unbalanced pulse signal and mechanical lock start signal, low level electric control lock start signal by U1 output makes triode T2, T3 conducting behind the phase inverter U4 of electric control lock driver 5, electric control lock coil L gets electric, and electric control lock is opened; Low level mechanical lock start signal by single-chip microcomputer U1 output is held (referring to Fig. 1) through a, makes the photoelectrical coupler U5 output low level signal of mechanical lock driver 6, makes T6, T7 conducting, and+12V power supply is added in the A end of control motor ZD; Signal also is connected to phase inverter U12 through a end by another branch road high potential is added in the T10 base stage, makes T10, T11 conducting, and+12V constitutes the loop through T7 emitter stage, T7 colelctor electrode, motor ZD, T11 colelctor electrode, T11 emitter stage, and this moment, motor ZD just changeed.Be positioned at indoor rotating handles rotation by driving mechanical lock, mechanical lock is opened with the joining transmission mechanism of motor shaft (referring to Fig. 3).As desire to go out to close the door, can manually close electric control lock earlier, import mechanical lock cipher then, because mechanical lock is in opening at this moment, the low level reverse signal that single-chip microcomputer U1 exports at this moment makes the photoelectrical coupler U6 output low level signal of mechanical lock driver 6 through b end (referring to Fig. 1), make triode T8, T9 conducting ,+12V power supply is added in the B end of control motor ZD; Reverse signal also is connected to phase inverter U11 through the b end by another branch road high potential is added in the T13 base stage, make T13, H4 conducting, + 12V constitutes the loop through T8 emitter stage, T8 colelctor electrode, control motor ZD, T12 colelctor electrode, T12 emitter stage, motor ZD counter-rotating this moment.The rotating handles that drives mechanical lock by the transmission mechanism that joins with motor shaft rotates, and mechanical lock is closed.K2 among Fig. 1, K3 are the dynamic braking switches, with so that motor ZD forward and backward stop immediately after being rotated in place and establish.Abnormal conditions (as component wear) appear, when can not work in the working cell, can be by the communication interface 9 of standby working cell, a portable computer and+12V power supply and standby working cell join, by the RS232 interface of computer by single supply password is input to standby single chip circuit 10, standby single-chip microcomputer 10 is checked and approved back output electric control lock start signal and mechanical lock start signal, opens electric control lock and mechanical lock by standby electric control lock driver 11 and stand-by machine lock driver 12.
Embodiment 2: the application of highly reliable infrared remote controlled code lock on automobile door lock, referring to Fig. 4, the basic comprising of whole device is identical with embodiment 1, different is, described mechanical lock driver 6 is made of triple gate U13A~U13D and micro-step motor, and the output and stepper motor coil C, the D that wherein receive U13A, the U13D of single chip circuit 3 rotating signals join; Single chip circuit 3 output positive sequence pulses, motor just changes; Single chip circuit 3 output backward pulses, the motor counter-rotating.Corresponding mechanical lock 8 is formed (referring to Fig. 5) by the shifting block mechanism that is connected on the step motor shaft, the shifting block 13 of shifting block mechanism is installed on the tracks of latch of automotive door, shifting block 3 is when the e of position among Fig. 5, latch can't move upward, so automotive door promptly uses key also can't open, when shifting block 3 moves to position f, just can open automotive door with key.Former access electric control lock coil L part changes the coil (referring to Fig. 4) that inserts oil circuit relay and circuit relay into.Stand-by machine lock driver 12 is made of with the stepper motor that joins triple gate U14A~U14D, the output and stepper motor coil C, the D that wherein receive U14A, the U14B of standby single chip circuit 10 rotating signals join, voltage-stabilized power supply output+5V also links with the control end of the triple gate U13A~U13D of working cell.
The course of work is basic identical with embodiment 1, just by the positive rotaring signal that constitutes by the positive sequence pulse of work single-chip microcomputer U1 output, be added to through triple gate U13A~U13D on coil C, the D of stepper motor, the stepper motor forward rotation, drive shifting block 13 and move on to position f from position e, latch can move up, and can open car door this moment with key.Make oil circuit relay and circuit relay get electronic work by electric control lock driver 5 more in addition, oil circuit and circuit are connected, just can start up the car, even otherwise open car door and can not start up the car.At closing time, the reverse signal that is made of the backward pulse of work single-chip microcomputer U1 output is added on coil C, the D of stepper motor through triple gate U13C, U13D, the stepper motor backward rotation, drive shifting block 13 from f shift position, position e, block mobile that latch makes progress, can't open automotive door with key this moment.Owing to kill engine, oil circuit relay and circuit relay dead electricity disconnect oil circuit and circuit.The application of the utility model on automotive door is equivalent under the prerequisite that does not change automobile door lock and oil circuit, circuit structure, for automobile has installed a remote control safety lock additional.(as component wear) breaks down, when can not work in the working cell, triple gate U13A~the U13D of working cell since control end be attempted by standby working cell+the 5V power supply on, therefore, when standby working cell access+12V power supply is started working, U13A~U13D no-output, coil C, the D of stepper motor are controlled by the triple gate U14A~U14D of stand-by machine lock driver 12 only, out-of-control phenomenon can not occur.

Claims (3)

1, a kind of highly reliable infrared remote controlled code lock comprises power subsystem, Infrared Projector (1), infrared signal receiver (2); It is characterized in that: also include a working cell and a standby working cell, power subsystem only joins with the working cell; The working cell comprises the single chip circuit (3) that receives infrared signal receiver (2) output signal, can be to the code-disc (4) of single chip circuit (3) presetting cipher, electric control lock driver (5), mechanical lock driver (6) that the output signal of single chip circuit (3) is amplified, be subjected to the electric control lock (7) of electric control lock driver (5) control action, be subjected to the mechanical lock (8) of mechanical lock driver (6) control action; Standby working cell comprise can with outer computer and the joining communication interface of external power supply (9), receive the standby single chip circuit (10) of communication interface (9) input signal, the standby electric control lock driver (11) that standby single chip circuit (10) one tunnel output signals are amplified and can be controlled electric control lock (7), the stand-by machine lock driver (12) that another road output signal of standby single chip circuit (10) is amplified and can be controlled mechanical lock (8).
2, a kind of highly reliable infrared remote controlled code lock according to claim 1, it is characterized in that: described single chip circuit (3) is made of single-chip microcomputer U1 and conventional peripheral circuit; Described code-disc is made up of 4 DIP switch MK that selectively export high potential or electronegative potential; Electric control lock driver (5) is by phase inverter U4 and be connected on the triode T2 of its output, the combination switch pipe that T3 forms constitutes, and the electromagnetic control coil L of electric control lock (7) is connected on the colelctor electrode of output triode T3; Described mechanical lock driver (6) is made of a forward driver and a reverse driven, forward driver comprises the photoelectrical coupler U5 that receives positive rotaring signal, be subjected to the combination switch pipe of forming by triode T6, T7 of U5 output control, the output of combination switch pipe is joined with the power supply terminal A that controls motor ZD, also comprise the phase inverter U12 that receives positive rotaring signal, be subjected to the combination switch pipe of being made up of triode T10, T11 of U12 output control, the output of this combination switch pipe is joined with the power supply terminal B that controls motor ZD; Reverse driven comprises the photoelectrical coupler U6 that receives reverse signal, what be subjected to U6 output control forms the combination switch pipe by triode T8, T9, the power supply terminal B of the output of combination switch pipe and motor ZD joins, also comprise phase inverter U11, be subjected to the combination switch pipe of being made up of triode T12, T13 of U11 output control, the power supply terminal A of the output of combination switch pipe and motor ZD joins; Corresponding mechanical lock (8) by lockset and be bound up on motor ZD and the lockset swingle between transmission mechanism constitute; Described mechanical lock driver (6) or constitute by triple gate U13A~U13D and stepper motor, the output and stepper motor coil C, the D that wherein receive U13A, the U13B of single chip circuit (3) rotating signal join, and corresponding mechanical lock (8) is made up of the fixture block mechanism that is connected on the step motor shaft.
3, a kind of highly reliable infrared remote controlled code lock according to claim 2, it is characterized in that: described communication interface (9) comprises the RS232 interface of an additional power source interface and a single supply; Standby single chip circuit (10) comprises the voltage-stabilized power supply that three terminal regulator U10 constitutes, the input circuit that triode T1, photoelectrical coupler U9 constitute, and single-chip microcomputer U2; Standby electric control lock driver (11) comprises phase inverter U7, formed by the on-off circuit that is made of triode T4, T5 of electromagnetic coil L power on/off of the electric control lock controlled (7) of its output control; Stand-by machine lock driver (12) comprises the photoelectrical coupler U8 of receiving inputted signal, and what be subjected to its output control can carry out the on-off circuit that break-make is controlled to the working power positive pole of motor ZD by what triode T14, T15 formed; And the phase inverter U15 of receiving inputted signal, what be subjected to its output control can carry out the on-off circuit that break-make is controlled to the working power negative pole of motor ZD by what triode T16, T17 formed; Described stand-by machine is locked driver (12) or is made of triple gate U14A~U14D and stepper motor, the output and stepper motor coil C, the D that wherein receive U14A, the U14B of standby single chip circuit (10) rotating signal join, and the positive pole of voltage-stabilized power supply output also links with the control end of the triple gate U13A~U13D of working cell.
CN 00223968 2000-08-11 2000-08-11 High-reliable infrared remote-control puzzle lock Expired - Fee Related CN2438785Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 00223968 CN2438785Y (en) 2000-08-11 2000-08-11 High-reliable infrared remote-control puzzle lock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 00223968 CN2438785Y (en) 2000-08-11 2000-08-11 High-reliable infrared remote-control puzzle lock

Publications (1)

Publication Number Publication Date
CN2438785Y true CN2438785Y (en) 2001-07-11

Family

ID=33588432

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 00223968 Expired - Fee Related CN2438785Y (en) 2000-08-11 2000-08-11 High-reliable infrared remote-control puzzle lock

Country Status (1)

Country Link
CN (1) CN2438785Y (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100393977C (en) * 2005-04-08 2008-06-11 清华大学 Standby unlocking unit for fingerprint safe
CN102222378A (en) * 2011-06-23 2011-10-19 高椿明 Modulated reflecting type optical access control system
CN101789143B (en) * 2009-01-22 2013-06-19 湖北盛佳电器设备有限公司 Electronic lock sealing control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100393977C (en) * 2005-04-08 2008-06-11 清华大学 Standby unlocking unit for fingerprint safe
CN101789143B (en) * 2009-01-22 2013-06-19 湖北盛佳电器设备有限公司 Electronic lock sealing control system
CN102222378A (en) * 2011-06-23 2011-10-19 高椿明 Modulated reflecting type optical access control system

Similar Documents

Publication Publication Date Title
CN105133966A (en) Intelligent remote control bike lock
CN2438785Y (en) High-reliable infrared remote-control puzzle lock
CN106639681A (en) Remote control electronic bicycle lock
CN104989192A (en) Stern door control system and method
CN110616982A (en) Control system and control method for cab door of railway vehicle
CN203387443U (en) Hand pulling starting type curtain opening and closing motor
CN1789646A (en) Remote controlled electric lock
CN205908126U (en) Automatically controlled tap lock
CN201484545U (en) Built-in electric vehicle anti-theft lock
CN209482884U (en) A kind of lock linkage
CN205113519U (en) A rear wheel of motorcycle chain stay remote control lock
CN211851303U (en) Novel full-automatic anti-theft lock without keyhole
CN202391263U (en) Vehicular intelligent automatic lock
CN220301988U (en) Electric window control system
CN2244500Y (en) Electrically operated lock for steering mechanism of automobile
CN209855521U (en) Electric remote control door
CN200971091Y (en) Vehicle electronic anti-theft device with secret switch
CN2383718Y (en) Remote-controlled starter for automobile
CN206235830U (en) A kind of automobile trunk open circuit
CN2205429Y (en) Safety protector of electric driving window
CN2185309Y (en) Full-automatic controller for sliding door opening machine
CN220252627U (en) Bluetooth channel gate control device
CN2133478Y (en) Electric opening device of bus door
CN108400039B (en) Combined electromechanical locking device of explosion-proof electrical equipment
CN202689781U (en) Remote control with function of controlling opening and closing of automotive door and automotive door control device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee