CN213838105U

CN213838105U - Passive electronic lock

Info

Publication number: CN213838105U
Application number: CN202021381826.4U
Authority: CN
Inventors: 王文鸿
Original assignee: Dongguan Anbounde Intelligent Lock Technology Co ltd
Current assignee: Dongguan Anbounde Intelligent Lock Technology Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-07-30
Anticipated expiration: 2030-07-14

Abstract

The utility model provides a passive electronic lock, which comprises a lock shell and a lock beam which are movably connected, wherein two ends of the lock beam are respectively provided with a limiting groove and a locking groove, a bolt is arranged in the lock shell and is positioned in the limiting groove, the opening of the lock shell is connected with a positioning seat, and the positioning seat is provided with a sliding groove; a lock tongue matched with the locking groove is connected in the sliding groove in a sliding mode, a driving hole is formed in the lock tongue, a cam is arranged in the driving hole, and a rotating wheel is fixed below the cam; still be equipped with the circuit board in the lock shell, circuit board electric connection has motor, NFC module and NFC antenna, the output shaft and the rotating wheel fixed connection of motor, and the NFC antenna is located outside the lock shell. The utility model discloses a mode and the NFC mobile terminal realization interconnection of NFC contactless power supply, NFC mobile terminal trigger NFC module after being close to and form the electric current, for circuit board and rather than the device power supply of being connected, need not power consumptive when locking the standby, environmental protection and energy saving, use cost and maintenance cost are low.

Description

Passive electronic lock

Technical Field

The utility model relates to an electronic lock specifically discloses a passive electronic lock.

Background

When the electronic lock is used, the circuit or the chip is controlled to work through key input, so that the mechanical switch is controlled to be closed or opened, and the locking and unlocking tasks are completed.

When the electronic lock is applied to the management of fixed-point cabinets such as high-speed rails and power grids, the locking or unlocking action is usually realized by using the communication between the mobile terminal and the electronic lock, and the management and the use can be effectively facilitated. In the prior art, the electronic lock needs to keep the communication module powered on in a standby state so as to ensure that a communication signal can be monitored and received, and the electronic lock is high in standby power consumption, high in use cost, high in maintenance cost and high in battery replacement frequency.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a passive electronic lock, which has low standby power consumption, environmental protection, energy saving, and a simple and reliable overall structure, in order to solve the problems in the prior art.

In order to solve the prior art problem, the utility model discloses a passive electronic lock, which comprises a lock shell and a lock beam which are movably connected, wherein two ends of the lock beam are respectively provided with a limiting groove and a locking groove, a bolt is arranged in the lock shell and is positioned in the limiting groove, the bottom of the lock shell is provided with an opening, the opening of the lock shell is connected with a positioning seat, and the positioning seat is provided with a sliding groove;

a lock tongue matched with the locking groove is connected in the sliding groove in a sliding mode, a driving hole is formed in the lock tongue, a cam is arranged in the driving hole, and a rotating wheel is fixed below the cam;

still be equipped with the circuit board in the lock shell, circuit board electric connection has motor, NFC module and NFC antenna, the output shaft and the rotating wheel fixed connection of motor, and the NFC antenna is located outside the lock shell.

Furthermore, a protective sleeve is sleeved outside the lock shell.

Furthermore, a protective cover is arranged on one side, away from the center of the lock shell, of the NFC antenna, and the protective cover is connected to the outside of the lock shell.

Further, the lock beam is a lock rope.

Furthermore, a screw hole is formed in the positioning seat, a screw penetrating through the lock shell is connected to the screw hole in a threaded mode, and the screw is located below the limiting groove.

Furthermore, a battery is arranged in the positioning seat, and the circuit board is electrically connected with the battery.

Furthermore, the side of rotating the wheel is equipped with triggers the recess, and one side of rotating the wheel is equipped with detection switch, circuit board and detection switch electric connection.

Furthermore, a locking inductive switch is arranged in the positioning seat, the locking inductive switch is positioned below the locking groove, and the circuit board is electrically connected with the locking inductive switch.

The utility model has the advantages that: the utility model discloses a passive electronic lock, realize the interconnection through the mode and the NFC mobile terminal of NFC contactless power supply, NFC mobile terminal triggers the NFC module and forms the electric current after being close to the NFC antenna, for circuit board and rather than the device power supply of being connected, need not power consumptively during the electronic lock standby, standby power dissipation is low, environmental protection and energy saving, use cost and maintenance cost are low, the NFC module judges the secret key that comes from NFC mobile terminal after correct, realize locking or unblock through the rotatory position of motor drive cam and then adjusting the spring bolt, overall structure is succinct reliable.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic cross-sectional view along a-a' in fig. 2.

Fig. 4 is an exploded schematic view of the present invention.

Fig. 5 is an enlarged schematic structural diagram of B in fig. 4 according to the present invention.

The reference signs are: the lock comprises a lock shell 10, a bolt 11, a protective sleeve 12, a protective cover 13, a lock beam 20, a limiting groove 21, a locking groove 22, a positioning seat 30, a sliding groove 31, a screw hole 32, a screw 33, a bolt 40, a driving hole 41, a cam 42, a rotating wheel 43, a trigger groove 431, a circuit board 50, a motor 51, an NFC module 52, an NFC antenna 53, a battery 54, a detection switch 55 and a locking induction switch 56.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Refer to fig. 1 to 5.

The embodiment of the utility model discloses a passive electronic lock, including swing joint lock shell 10 and lock beam 20, the both ends of lock beam 20 are equipped with annular spacing recess 21 and locking groove 22 respectively, are equipped with bolt 11 in the lock shell 10, and bolt 11 is located spacing recess 21, and the bottom of lock shell 10 is equipped with the opening, and the opening part of lock shell 10 is connected with positioning seat 30, is equipped with sliding tray 31 on the positioning seat 30;

a lock tongue 40 matched with the lock groove 22 is slidably connected in the slide groove 31, that is, the lock tongue 40 can be inserted into the lock groove 22 to lock and limit the lock beam 20, preferably, one end of the lock tongue 40, which is far away from the lock groove 22, is connected with the tail end of the lock groove 22 through a spring, so that stable and reliable locking and unlocking actions are ensured, a drive hole 41 is formed in the lock tongue 40, a cam 42 is arranged in the drive hole 41, the maximum length of the cam 42 is not more than the minimum length of the drive hole 41, it is ensured that the cam 42 can rotate in the drive hole 41 and drive the lock tongue 40 to translate along the slide groove 31 to realize locking and unlocking, and a rotating wheel 43 is fixed below the cam 42;

the inside of the lock case 10 is further provided with a circuit board 50 with a built-in control chip, the control chip can be a single chip microcomputer, the circuit board 50 is electrically connected with a motor 51, an NFC module 52 and an NFC antenna 53, the NFC module 52 is connected with the NFC antenna 53, the NFC module 52 is also called NFC chip, the Chinese name of NFC is NFC, the NFC is integrated and evolved by a non-contact radio frequency identification and interconnection technology, an induction card reader, an induction card and a point-to-point communication function are integrated on a single chip, the NFC is composed of the NFC module 52 and the NFC antenna 53, the NFC module 52 is generally composed of a high-speed single chip microcomputer, a radio frequency chip and a matching circuit, the NFC antenna 53 is generally composed of a circuit coil manufactured by winding, printing or etching technology and an iron oxide material with anti-interference capability, an output shaft of the motor 51 is fixedly connected with the rotating wheel 43, preferably, the motor 51 is a micro motor 51, the NFC antenna 53 is positioned outside the lock case 10, preferably, the NFC antenna 53 is located on the side surface of the lock case 10, ensuring stable NFC communication.

The utility model discloses the during operation, make the cell-phone, NFC mobile terminal such as panel computer is close to NFC antenna 53, realize near field communication, NFC module 52 receives the key that comes from NFC mobile terminal through NFC antenna 53, NFC module 52 compares the key and sends out instruction trigger motor 51 function after correct, realize that passive control realizes locking or unblock action, NFC mobile terminal forms and makes NFC module 52 produce certain voltage, can supply power for circuit board 50 and the device of being connected therewith. During locking, the NFC module 52 triggers the motor 51 to drive the rotating wheel 43 to rotate, and the cam 42 rotates along with the rotating wheel, so as to drive the lock tongue 40 to move along the sliding groove 31 and insert into the locking groove 22, thereby effectively limiting the lock beam 20 and locking the lock housing 10 to realize locking; during unlocking, the NFC trigger motor 51 drives the rotating wheel 43 to rotate, and the cam 42 rotates along with the rotating wheel, so as to drive the lock tongue 40 to move along the sliding groove 31 and leave the lock groove 22, thereby yielding the lock beam 20, and one end of the lock groove 22 of the lock beam 20 can be pulled out of the lock case 10, thereby unlocking.

In this embodiment, a protective sleeve 12 is sleeved outside the lock case 10, and preferably, the protective sleeve 12 is a silicone sleeve, which has good functions of preventing collision and water.

In this embodiment, one side of NFC antenna 53 far away from lock shell 10 center is equipped with visor 13, and visor 13 is connected outside lock shell 10, can effectively protect NFC antenna 53 through visor 13, avoids NFC antenna 53 to be worn and torn, and preferentially, visor 13 is the plastic cover structure that does not have the shielding effect.

In this embodiment, the strike 20 is a lock cord that can be bent to accommodate particular application requirements.

In the embodiment, the positioning seat 30 is provided with a screw hole 32, and a screw 33 penetrating through the lock case 10 is threadedly connected to the screw hole 32, that is, the screw 33 fixes the lock case 10 to the positioning seat 30, and when locking, the screw 33 is located below the limiting groove 21, and the lock beam 20 needs to be removed to disassemble the lock case 10 and the positioning seat 30, so that the anti-theft performance is improved.

In this embodiment, the battery 54 is disposed in the positioning seat 30, the circuit board 50 is electrically connected to the battery 54, and the battery 54 can effectively provide electric energy for the operation of the motor 51, so as to prevent the motor 51 from being unable to operate normally due to insufficient voltage formed by the NFC module 52, and effectively ensure reliable operation of the electronic lock. This embodiment is the normal during operation, NFC mobile terminal is close to NFC antenna 53 and conveys the key to NFC module 52 through it, NFC module 52 can form the electric current under NFC mobile terminal's drive and supply its self function, detect the control chip through circuit board 50 behind the key is correct and put through battery 54, the electric energy driving motor 51 function that provides through battery 54, whole action is reliable, battery 54 only just puts through when the key is correct, battery 54 stops the power supply during the standby, the utility model discloses electronic lock's standby power consumption is low, and is energy-concerving and environment-protective.

In this embodiment, a triggering groove 431 is formed in a side surface of the rotating wheel 43, a detection switch 55 is arranged on one side of the rotating wheel 43, the circuit board 50 is electrically connected with the detection switch 55, when the rotating wheel 43 rotates until the triggering groove 431 is opposite to a triggering end of the detection switch 55, the detection switch 55 transmits a stop signal to a control chip of the circuit board 50, and the motor 51 stops driving the rotating wheel 43 to rotate, so that the locking or unlocking action is completed, the rotating wheel 43 is ensured to rotate in place, and the reliability of the locking or unlocking action is improved.

In the present embodiment, a locking sensing switch 56 is disposed in the positioning seat 30, preferably, the locking sensing switch 56 is a hall switch, the lock beam 20 is made of a metal structure, the locking sensing switch 56 is located below the locking groove 22 during locking, the circuit board 50 is further electrically connected to the locking sensing switch 56, and whether the lock beam 20 is locked or unlocked can be detected by the locking sensing switch 56.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A passive electronic lock comprises a lock shell (10) and a lock beam (20) which are movably connected, and is characterized in that two ends of the lock beam (20) are respectively provided with a limiting groove (21) and a locking groove (22), a bolt (11) is arranged in the lock shell (10), the bolt (11) is positioned in the limiting groove (21), the bottom of the lock shell (10) is provided with an opening, the opening of the lock shell (10) is connected with a positioning seat (30), and the positioning seat (30) is provided with a sliding groove (31);

a lock tongue (40) matched with the locking groove (22) is connected in the sliding groove (31) in a sliding mode, a driving hole (41) is formed in the lock tongue (40), a cam (42) is arranged in the driving hole (41), and a rotating wheel (43) is fixed below the cam (42);

still be equipped with circuit board (50) in lock shell (10), circuit board (50) electric connection has motor (51), NFC module (52) and NFC antenna (53), the output shaft of motor (51) with directive wheel (43) fixed connection, NFC antenna (53) are located outside lock shell (10).

2. A passive electronic lock according to claim 1, characterized in that the lock housing (10) is provided with a protective sleeve (12) around its exterior.

3. A passive electronic lock according to claim 1, characterized in that a protective cover (13) is arranged on the side of the NFC antenna (53) facing away from the center of the lock housing (10), said protective cover (13) being attached to the outside of the lock housing (10).

4. A passive electronic lock according to claim 1, characterized in that the shackle (20) is a lock rope.

5. A passive electronic lock according to claim 1, characterized in that said positioning socket (30) is provided with a threaded hole (32), said threaded hole (32) being threadedly connected with a screw (33) extending through said lock housing (10), said screw (33) being located below said limiting recess (21).

6. A passive electronic lock according to claim 1, wherein a battery (54) is provided in the positioning seat (30), and the circuit board (50) is electrically connected to the battery (54).

7. A passive electronic lock according to claim 1, characterized in that the side of the rotating wheel (43) is provided with a trigger groove (431), one side of the rotating wheel (43) is provided with a detection switch (55), and the circuit board (50) is electrically connected with the detection switch (55).

8. The passive electronic lock according to claim 1, wherein a locking sensing switch (56) is disposed in the positioning seat (30), the locking sensing switch (56) is disposed below the locking groove (22), and the circuit board (50) is electrically connected to the locking sensing switch (56).