CN114320037A

CN114320037A - Self-recovery type waterproof NFC electronic padlock

Info

Publication number: CN114320037A
Application number: CN202111648649.0A
Authority: CN
Inventors: 姚春良; 丁凡; 姜杰
Original assignee: Ningbo Shengjiu Technology Co ltd
Current assignee: Ningbo Shengjiu Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-04-12
Anticipated expiration: 2041-12-30
Also published as: CN114320037B

Abstract

The invention relates to a self-recovery waterproof NFC electronic padlock, which is designed for solving the technical problems that the existing similar passive lockset is designed by adopting the NFC technology less, the energy consumption is higher, and the stability and the accuracy are poorer. The module of the electronic padlock is fixed in the lock shell through a bottom cover at the bottom of the lock shell, and one end of a mandril extending out of the top of the module is respectively abutted against the marbles at two sides in the lock shell; the key points are that one end of the marble is respectively provided with a semicircular hemispherical head, a cylinder at the other end is respectively provided with a circular end head, the hemispherical head at one end of the marble is respectively propped against the fixed end and the inner side groove of the movable end of the lock hook through a second spring, and the circular end head at the other end of the marble is propped against semicircular grooves symmetrically arranged at two sides of one end of the ejector rod; the outer diameter of the other end of the ejector rod in the module is provided with a third spring, the ejector rod at the end is connected with one end of the cam connecting piece to form an L shape, one side of the ejector rod in the module is provided with a motor, and the upper inclined surface at one end of a cam transmission piece of the motor is attached to the lower inclined surface of the cam connecting piece.

Description

Self-recovery type waterproof NFC electronic padlock

Technical Field

The invention relates to an electronic padlock, in particular to a self-recovery waterproof NFC electronic padlock.

Background

The padlock is a lock with a lock body provided with a buckled annular lock hook or a straight lock beam, the lock body is directly buckled with the lock body through the lock hook or the lock beam to form a closed lock, and the electronic padlock is a padlock which adopts the modes of fingerprint unlocking, two-dimensional code scanning unlocking, electronic code unlocking and the like. Such as application number 202021343531.8, publication date 2021.01.15, entitled "bluetooth padlock" disclosed in chinese patent document; the invention is named as an intelligent padlock as disclosed in Chinese patent document with application number 201910402855.X, application publication 2019.08.09. Meanwhile, Near Field Communication (NFC for short) is an emerging technology, devices (such as mobile phones) using the NFC technology can exchange data when they are close to each other, and is integrated and evolved from non-contact Radio Frequency Identification (RFID) and interconnection and interworking technologies, and by integrating functions of an induction card reader, an induction card and point-to-point Communication on a single chip, applications such as mobile payment, electronic ticketing, door access, mobile identity recognition, anti-counterfeiting and the like are realized by using a mobile terminal. In recent years, as the technology of NFC is more mature, but industrial application scenes in the market do not have a mature NFC padlock yet, so if industrial NFC padlocks are produced at the same time and combined with the advantages of a new generation of identification technology, mechanical locks must be gradually replaced to become a new leading role in the lock industry.

Disclosure of Invention

In order to overcome the defects, the invention aims to provide a self-recovery waterproof NFC electronic padlock in the field, so that the technical problems of poor integrity effect and anti-breaking effect caused by poor structural design of the existing similar products, large energy consumption and poor stability and accuracy caused by less adoption of NFC technology design of passive locks are solved. The purpose is realized by the following technical scheme.

A self-recovery waterproof NFC electronic padlock is characterized in that a lock hook of the electronic padlock is U-shaped, one end of the lock hook is a fixed end, the other end of the lock hook is a movable end, the fixed end of the lock hook is inserted into and fixed in a lock shell through the top of the lock shell, and the movable end of the lock hook is ejected out of the lock shell and then is unlocked through rotation of the fixed end; the module is fixed in the lock shell through the bottom cover and the first sealing washer of lock shell bottom, and the ejector pin one end that the module top stretches out offsets with the pellet shot from a slingshot of lock shell interior both sides respectively, is equipped with circuit board and motor in the module, and the circuit board is equipped with the battery, and the circuit board passes through the circuit to be connected with the motor. The structural design key points are that one end of the marble is respectively provided with a semicircular hemispherical head, the cylindrical other end at the bottom of the hemispherical head of the marble is respectively provided with a circular end head, the hemispherical head at one end of the marble is respectively propped against a fixed end inner side fixed groove of a lock hook and a movable end inner side movable groove of the lock hook through a second spring, and the circular end head at the other end of the marble is simultaneously propped against semicircular grooves symmetrically arranged at two sides of one end of a mandril; the outer diameter of the other end of the ejector rod in the module is provided with a third spring, the ejector rod at the end is connected with one end of the cam connecting piece to form an L shape, the other end of the cam connecting piece is provided with a lower inclined plane which is obliquely arranged, one side of the ejector rod in the module is provided with a motor, a motor shaft of the motor is provided with a cam driving part, and the upper inclined plane at one end of the cam driving part is attached to the lower inclined plane of the cam connecting piece. The structure enables the marble of the electronic padlock to be indirectly driven through the ejector rod and the cam structure consisting of the cam connecting piece and the cam transmission piece, the motor only needs to rotate in one direction, and the position detection at multiple points is not needed, so that the energy consumption is reduced. Namely, when the ejector rod is driven by the motor, the cam connecting piece and the cam transmission piece to be drawn into the module downwards, the latch hook can be pulled out, and the latch hook and the marble can be separated to realize unlocking; after the lock hook is locked, when the motor is powered off to drive the cam transmission member to reset, the cam connecting member and the ejector rod reset, the ejector rod extends out of the module and abuts against the marbles on two sides, the marbles are buckled with the lock hook, and then the lock can be closed, and the marbles cannot be retracted and separated from the lock hook.

The circuit board is provided with an NFC signal transceiving module and a capacitor, and a battery is omitted; one end of the ejector rod is inserted into a rod hole at one end of the cam connecting piece, one end of the cam driving piece is inserted into a column hole at the other end of the cam connecting piece, an annular inclined plane of the outer diameter of a cylinder at the other end of the cam driving piece and an arc-shaped inclined plane of the column hole of the cam connecting piece are arranged, one end of a third spring of the outer diameter of the ejector rod abuts against a limiting rib of the outer diameter of the upper part of the ejector rod, and the other end of the third spring abuts against the bottom of a spring groove in the module. Therefore, the electronic padlock is triggered to supply power to the NFC signal transceiving module through the capacitor, the circuit board is in a power-off state at ordinary times, and unlocking and locking of the electronic padlock are achieved through a passive technology.

The outer side of the lower portion of the movable groove in the inner side of the movable end of the lock hook is provided with a first magnet, the circuit board is provided with a first Hall element, and when the movable end of the lock hook is inserted into the lock shell, the first magnet of the lock hook is aligned with the first Hall element of the circuit board to trigger.

And a second magnet is arranged in a side hole groove of the cam transmission member, the circuit board is provided with a second Hall element, and when the movable end of the lock hook is inserted into the lock shell, the second magnet of the cam transmission member is aligned with the second Hall element of the circuit board to trigger. Therefore, the position of the electronic padlock is further accurate through the arrangement of the first Hall element and the second Hall element.

The lock shell comprises an inner lock shell and an outer lock shell, and the marbles and the second springs are arranged in marble grooves symmetrically arranged on two sides of the top of the inner lock shell. Therefore, the pin tumbler and the second spring are fixedly arranged in the lock shell formed by the inner lock shell and the outer lock shell, and the production and assembly of the electronic padlock are further facilitated.

An inner top cover fixed on the inner lock shell through screw sealing is arranged on a groove opening at the top of a marble groove on the inner lock shell of the lock shell, a round end of a marble is inserted into the inner lock shell through a baffle plate in the marble groove and is abutted against semicircular grooves on two sides of an ejector rod extending out of a fixed seat in the module, the ejector rod is T-shaped, and a second sealing ring is arranged on the outer diameter of the marble at the bottom of the baffle plate in the marble groove of the inner lock shell. The structure further improves the stability of the marble, and the sealing property and the waterproofness of the marble.

One side of the bottom cover in the middle of the inner lock shell of the lock shell is provided with a U-shaped opening, two sides of the opening of the inner lock shell are symmetrically provided with raised limiting ribs, and the sliding grooves on two sides of the module are inserted into the limiting ribs fixed on the inner lock shell. The structure is convenient for assembly production and fixed installation between the lock shell and the module.

And a dustproof sleeve is arranged above the movable groove at the inner side of the movable end of the lock hook and is connected with the lock hook into a whole. Thereby being convenient for the dustproof, the sealing and the waterproof of the movable end one side of the latch hook.

The lock is characterized in that a first spring is arranged in a hook hole at the bottom of the fixed end of a lock hook in the lock shell, the lock shell is connected with a bottom cover at the bottom through screws in hook holes at two sides of the fixed end and the movable end of the lock hook, an edge groove is formed in the outer side below a movable groove in the inner side of the movable end of the lock hook, and a pin is inserted into the edge groove of the lock hook through the lock shell and is positioned in the edge groove. Therefore, when the electronic padlock is unlocked, the fixed end of the lock hook is popped out through the first spring, and the electronic padlock is integrally sealed and waterproof.

The lock shell is internally provided with a marble and a second spring, the marble and the second spring are arranged behind the lock shell, the module is placed in the lock shell, the lock shell is fixed on the bottom cover through screws in hook holes on two sides of the fixed end and the movable end of the lock hook, the first spring and the lock hook are placed in the lock shell, one side of the fixed end of the lock hook is inserted into a pin of the lock shell to fix the fixed end of the lock hook in the lock shell, the pin is positioned in an edge groove on the outer side below the movable end inner side movable groove of the lock hook, and a plug is arranged in a pin hole of the lock shell. The specific assembling steps of the electronic padlock improve the sealing property and the waterproofness of the electronic padlock and prevent the electronic padlock from being broken and opened.

The invention has reasonable structural design, convenient production and assembly, good accuracy, sealing property and stability and less energy consumption, particularly the power supply of the motor can be started through a capacitor, the motor only needs to drive the cam connecting piece to rotate through the cam transmission piece, and the energy consumption of the motor is less; the self-recovery waterproof NFC electronic padlock is suitable for being used as a self-recovery waterproof NFC electronic padlock and further improving similar products.

Drawings

FIG. 1 is a partial schematic view of the present invention.

Fig. 2 is a schematic cross-sectional structure of the present invention.

Fig. 3 is an internal structural view of the locked state of fig. 2.

Fig. 4 is a schematic view of the unlocked state of fig. 3.

Fig. 5 is a schematic view of the internal structure of the present invention, with the outer lock case of the lock case omitted.

Fig. 6 is a schematic view of the exploded structure of fig. 5, in which the frame portion is the other side structure of the cam link.

Figure number and name: 1. the lock hook comprises a lock hook 101, a dust-proof sleeve 102, a side groove 2, a lock shell 201, an inner lock shell 202, an outer lock shell 203, an inner top cover 3, a module 301, a fixed seat 4, a first sealing ring 5, a bottom cover 6, a motor 7, a cam transmission part 8, a cam connecting part 9, a first spring 10, a push rod 11, a marble 12, a second spring 13, a baffle plate 14, a second sealing ring 15, a third spring 16, a first magnet 17, a first Hall element 18, a circuit board 19, a screw 20, a pin 21, a plug 22, a first capacitor 23, a second capacitor 24 and a second magnet.

Detailed Description

The construction and use of the invention will now be further described with reference to the accompanying drawings. As shown in fig. 1-6, a shackle 1 of the electronic padlock is U-shaped, one end of the shackle is a fixed end, the other end of the shackle is a movable end, the fixed end of the shackle is inserted into and fixed in the lock case through the top of the lock case 2, and the movable end of the shackle is ejected out of the lock case and then is rotated by the fixed end to unlock the electronic padlock. The module 3 is fixed in the lock shell through the bottom cover 5 and the first sealing washer 4 of lock shell bottom, and the ejector pin 10 one end that the module top stretches out offsets with the pellet shot from a slingshot 11 of lock shell interior both sides respectively, is equipped with circuit board 18 and motor 6 in the module, and the circuit board is equipped with electric capacity and NFC signal transceiver module, and the electric capacity includes first electric capacity 22 and second electric capacity 23, and the circuit board passes through the circuit and is connected with the motor. One end of each marble is provided with a semicircular hemispherical head, the other end of the cylinder at the bottom of the hemispherical head of each marble is provided with a circular end head, the hemispherical head at one end of each marble is abutted against the fixed end inner side fixed groove of the lock hook and the movable end inner side movable groove of the lock hook through a second spring 12, and the circular end head at the other end of each marble is abutted against semicircular grooves symmetrically arranged at two sides of one end of the ejector rod 10; the module includes fixing base 301 and both sides inner cover board, and ejector pin other end external diameter in the module is equipped with third spring 15, and this end ejector pin is connected with the one end of cam connecting piece 8 and is the L font, and the other end of cam connecting piece is equipped with the lower inclined plane that the slant set up, and ejector pin one side in the module is equipped with the motor, and the motor shaft of motor is equipped with cam driving medium 7, and the last inclined plane of cam driving medium one end and the lower inclined plane laminating of cam connecting piece. The pole hole of the one end of ejector pin insertion cam connecting piece one end promptly, the post hole of the cam connecting piece other end is inserted to the one end of cam driving medium, the annular inclined plane of cam driving medium other end cylinder external diameter and the post hole department arc inclined plane of cam connecting piece, the third spring one end of ejector pin external diameter supports in the spacing muscle of ejector pin upper portion external diameter, the other end of third spring supports in the bottom of the interior spring groove of module, second magnet 24 sets up in a side hole groove below the annular inclined plane of cam driving medium, the motor shaft of motor passes through the cross hole that the cross head inserted the cam driving medium. The outer side of the lower portion of the movable groove in the inner side of the movable end of the lock hook is provided with a first magnet 16, the circuit board is provided with a first Hall element 17 and a second Hall element, when the movable end of the lock hook is inserted into the lock shell, the first magnet of the lock hook is aligned with the first Hall element of the circuit board to trigger, the circuit board of the second Hall element is not drawn, and the accuracy of the locking state in place is further improved through the first Hall element and the second Hall element. And a second magnet of the cam transmission part is aligned with a second Hall element of the circuit board for triggering.

The lock shell comprises an inner lock shell 201 and an outer lock shell 202, and the marbles and the second springs are arranged in marble grooves symmetrically arranged on two sides of the top of the inner lock shell. An inner top cover 203 fixed on the inner lock shell through screw sealing is arranged on the notch at the top of the marble groove on the inner lock shell of the lock shell, the round end of the marble is inserted into the inner lock shell through a baffle 13 in the marble groove and is abutted against semicircular grooves at two sides of an ejector rod extending out of a fixed seat in the module, the ejector rod is T-shaped, a second sealing ring 14 is arranged on the outer diameter of the marble at the bottom of the baffle in the marble groove of the inner lock shell, and inner cover plates are respectively arranged at two sides of the fixed seat. An opening is arranged on one side of the bottom cover 5 in the middle of the inner lock shell of the lock shell and is U-shaped, raised limiting ribs are symmetrically arranged on two sides in the opening of the inner lock shell, and the sliding grooves on two sides of the module are inserted into the limiting ribs fixed on the inner lock shell. The dustproof sleeve 101 is arranged above the movable groove at the inner side of the movable end of the lock hook and is connected with the lock hook into a whole. The first spring 9 is arranged in a hook hole at the bottom of the fixed end of a lock hook in the lock shell, the lock shell is connected with a bottom cover at the bottom through screws 19 in hook holes at two sides of the fixed end and the movable end of the lock hook, an edge groove 102 is arranged on the outer side below a movable groove at the inner side of the movable end of the lock hook, and a pin 20 is inserted into the edge groove of the lock hook through the lock shell and is positioned in the edge groove. The lock shell is internally provided with the marble and the second spring, the module is placed into the lock shell, the lock shell is fixed on the bottom cover through the nails in the hook holes on two sides of the fixed end and the movable end of the lock hook, the first spring and the lock hook are placed into the lock shell, the fixed end of the lock hook is fixed in the lock shell through the pin inserted into the lock shell from one side of the fixed end of the lock hook, the pin is positioned in the side groove on the outer side below the movable end inside movable groove of the lock hook, the pin hole of the lock shell is provided with the plug 21, and the vent holes are respectively formed in the outer sides of the bottoms of the hook holes above the nail in the lock shell.

The electronic padlock adopts a unpowered marble structure, and comprises the following specific components: when the lock is closed, the cam transmission part rotates to stop moving and senses the second Hall element, the lock hook is vertically pressed in place, the marbles on the two sides are inserted into the lock position of the lock hook under the action of the second spring, then the ejector rod reaches the tangent plane of the marbles under the action of the third spring, and the first Hall element is sensed at the moment. When the lock is unlocked, the cam transmission part rotates to drive the cam connecting part to vertically move downwards with the ejector rod, and when the ejector rod is separated from the tangent plane of the marble, the lock hook is unlocked in place and pushes the marble back under the action of the first spring, so that unlocking is realized. The self-recovery of the electronic padlock means that the locking between the lock hook and the two marbles is realized through the elastic force of the second spring respectively, the two marbles automatically reset and lock the lock hook through the second spring respectively without the driving force of a motor, and the marble can be stirred to realize unlocking through the upward movement of the ejector rod; the steel balls in the existing similar products are generally poked and reset by driving the cam and the rotating shaft structure through the motor, so that the electronic padlock consumes less energy compared with the existing similar products, and only the NFC technology is needed to start the capacitor for power supply.

To sum up, this electron padlock is an intelligence industry NFC padlock, and this electron padlock adopts the modularized design, and drive mechanism installs independently, easy maintenance, and the assembly is simple, and the module bulldozes the installation from bottom to top by the lock shell bottom and is packed into in the lock shell. This electron padlock adopts novel transmission structure to adopt NFC near field communication technique, because the electric capacity energy storage is limited, in order to reduce the energy consumption, this mechanism uses the terminal surface cam structure, and the motor only needs a direction to carry out rotary motion, need not the multiple spot and detects the position, thereby has reduced the energy consumption. Compared with the existing steel ball structure of the same product, the marble structure of the electronic padlock is protected by a sealing ring on the matching surface of the marble structure and the lock body, and the problems of water resistance and dust resistance are solved.

Claims

1. A self-recovery waterproof NFC electronic padlock is characterized in that a lock hook (1) of the electronic padlock is U-shaped, one end of the lock hook is a fixed end, the other end of the lock hook is a movable end, the fixed end of the lock hook is inserted into and fixed in a lock shell through the top of the lock shell (2), and the movable end of the lock hook is ejected out of the lock shell and then is unlocked through rotation of the fixed end; the module (3) is fixed in the lock shell through a bottom cover (5) at the bottom of the lock shell and a first sealing ring (4), one end of a mandril (10) extending out of the top of the module is respectively abutted against marbles (11) at two sides in the lock shell, a circuit board (18) and a motor (6) are arranged in the module, the circuit board is provided with a battery, and the circuit board is connected with the motor through a circuit; the locking device is characterized in that one end of each marble (11) is provided with a semicircular hemispherical head, the other end of a cylinder at the bottom of the hemispherical head of each marble is provided with a circular end head, the hemispherical head at one end of each marble abuts against a fixed end inner side fixed groove of the locking hook (1) and a movable end inner side movable groove of the locking hook through a second spring (12), and the circular end head at the other end of each marble abuts against semicircular grooves symmetrically arranged at two sides of one end of the ejector rod (10) at the same time; the outer diameter of the other end of the ejector rod in the module (3) is provided with a third spring (15), the ejector rod at the end is connected with one end of a cam connecting piece (8) in an L shape, the other end of the cam connecting piece is provided with a lower inclined plane which is obliquely arranged, one side of the ejector rod in the module is provided with a motor (6), a motor shaft of the motor is provided with a cam driving piece (7), and the upper inclined plane at one end of the cam driving piece is attached to the lower inclined plane of the cam connecting piece.

2. Self-restoring waterproof NFC electronic padlock according to claim 1, characterized in that said circuit board (18) is provided with NFC signal transceiving module and capacitor, omitting the battery; one end of the ejector rod (10) is inserted into a rod hole at one end of the cam connecting piece (8), one end of the cam driving piece (7) is inserted into a column hole at the other end of the cam connecting piece, an annular inclined plane of the outer diameter of a cylinder at the other end of the cam driving piece and an arc-shaped inclined plane of the column hole of the cam connecting piece are arranged, one end of a third spring (15) of the outer diameter of the ejector rod is abutted against a limiting rib of the outer diameter of the upper part of the ejector rod, and the other end of the third spring is abutted against the bottom of a spring groove in the module.

3. The self-recovery waterproof NFC electronic padlock according to claim 1, characterized in that a first magnet (16) is arranged on the outer side below the movable groove on the inner side of the movable end of the shackle (1), a first Hall element (17) is arranged on the circuit board (18), and when the movable end of the shackle is inserted into the lock case (2), the first magnet of the shackle and the first Hall element of the circuit board are aligned and triggered.

4. The self-recovery waterproof NFC electronic padlock according to claim 1, characterized in that a second magnet (24) is arranged in a side hole groove of the cam transmission member (7), the circuit board (18) is provided with a second Hall element, and when the movable end of the latch hook is inserted into the lock case (2), the second magnet of the cam transmission member is aligned with the second Hall element of the circuit board to trigger.

5. The self-restoring waterproof NFC electronic padlock according to claim 1, characterized in that the lock case (2) comprises an inner lock case (201) and an outer lock case (202), the pins (11) and the second spring (12) being arranged in pin slots symmetrically arranged on both sides of the top of the inner lock case.

6. The self-recovery waterproof NFC electronic padlock according to claim 5, characterized in that an inner top cover (203) fixed on the inner lock case through screw sealing is arranged on a top notch of a pin tumbler groove on the inner lock case (201) of the lock case (2), a round end of a pin tumbler (11) is inserted into the inner lock case through a baffle (13) in the pin tumbler groove and abuts against semi-circular grooves on two sides of a mandril (10) extending out of an inner fixing seat (301) of the module (3), the mandril is T-shaped, and a second sealing ring (14) is arranged on the outer diameter of the pin tumbler at the bottom of the inner baffle of the pin tumbler groove of the inner lock case.

7. The self-recovery waterproof NFC electronic padlock according to claim 5, wherein an opening is formed in one side of a middle bottom cover (5) of an inner lock shell (201) of the lock shell (2) and is U-shaped, protruding limiting ribs are symmetrically arranged on two sides in the opening of the inner lock shell, and sliding grooves in two sides of the module (3) are inserted into the limiting ribs fixed on the inner lock shell.

8. The self-restoring waterproof NFC electronic padlock according to claim 1, characterized in that a dust-proof sleeve (101) is arranged above the movable groove inside the movable end of the shackle (1), and the dust-proof sleeve and the shackle are connected into a whole.

9. The self-recovery waterproof NFC electronic padlock according to claim 1, characterized in that a first spring (9) is arranged in a hook hole at the bottom of a fixed end of a locking hook (1) in the lock shell (2), the lock shell is connected with a bottom cover (5) at the bottom through screws (19) in hook holes at two sides of the fixed end and the movable end of the locking hook, an edge groove (102) is arranged on the outer side below a movable groove at the inner side of the movable end of the locking hook, and a pin (20) is inserted into the edge groove of the locking hook through the lock shell.

10. The self-recovery waterproof NFC electronic padlock according to claim 9, wherein the module (3) is placed in the lock case after the pins (11) and the second spring (12) are installed in the lock case (2) and the lock case is fixed to the bottom cover (5) through screws (19) in hook holes in two sides of the fixed end and the movable end of the shackle (1), and then the first spring (9) and the shackle are placed in the lock case, the fixed end of the shackle is fixed in the lock case by inserting a pin (20) of the lock case into one side of the fixed end of the shackle, the pin is located in an edge groove (102) in the lock case below an inner side movable groove of the movable end of the shackle, and a plug (21) is arranged in the pin hole of the lock case.