CN111425077A

CN111425077A - Passive NFC prevents mistake padlock

Info

Publication number: CN111425077A
Application number: CN202010442504.4A
Authority: CN
Inventors: 王靖晖; 马博; 王金兴; 夏锐; 魏略
Original assignee: Changyuan Contron Power Security Technology Co Ltd
Current assignee: Changyuan Contron Power Security Technology Co Ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2020-07-17

Abstract

The invention is suitable for a lockset and discloses a passive NFC (near field communication) error-preventing padlock which comprises a lock body, a lock hook connected to the lock body and a lock tongue arranged in the lock body, wherein the lock hook is provided with a lock groove for inserting the end part of the lock tongue to lock the lock hook; one end of the poking piece is a poking end connected with the lock tongue, and the other end of the poking piece is a pressing end capable of abutting against the electronic driving assembly. According to the passive NFC anti-misoperation padlock provided by the invention, the driving force required for stirring the lock tongue is reduced by utilizing the lever principle, and the unlocking success rate of the passive NFC anti-misoperation padlock is effectively improved.

Description

Passive NFC prevents mistake padlock

Technical Field

The invention belongs to the field of locks, and particularly relates to a passive NFC anti-misoperation padlock.

Background

The NFC padlock is a new type of electronic lock, which can be divided into an active padlock and a passive padlock. The active electronic padlock has a working power supply, so that the active electronic padlock is complex in structure, frequent in maintenance and high in battery consumption, and the passive electronic padlock displaces the working power supply required during operation to the electronic key, so that a series of inherent problems in the active electronic padlock are overcome.

However, in the prior art, because the electric power in the passive NFC padlock is derived from the NFC unlocking device, and the NFC module in the passive NFC padlock transmits power supply with a weak ability, it is difficult to provide continuous and reliable electric power for the unlocking mechanism, resulting in limited unlocking driving force of the passive NFC padlock in the prior art, it is difficult to completely satisfy the required driving force when the lock tongue is toggled in the unlocking, and the reliability that resets after the unlocking is poor, and the situation of failure in unlocking easily occurs in practical use.

Disclosure of Invention

The invention aims to solve at least one of the technical problems and provides a passive NFC anti-misoperation padlock, which reduces the driving force required for stirring a lock tongue by utilizing a lever principle and effectively improves the unlocking success rate of the passive NFC anti-misoperation padlock.

The technical scheme of the invention is as follows: a passive NFC anti-misoperation padlock comprises a lock body, a lock hook connected to the lock body and a lock tongue arranged in the lock body, wherein the lock hook is provided with a lock groove for inserting the end part of the lock tongue to lock the lock hook; one end of the poking piece is a poking end used for poking the lock tongue, and the other end of the poking piece is a pressing end pushed by the electronic driving assembly.

Optionally, the electronic drive assembly comprises a drive member electrically connected to the energy storage unit and a cam driven by the drive member.

Optionally, the electronic driving assembly further includes a driving pin, one end of the driving pin may abut against the cam, and the other end of the driving pin may abut against the abutting end.

Optionally, a curved groove is formed in a side wall of the cam, and one end of the transmission pin extends into the curved groove and abuts against a groove wall of the curved groove.

Optionally, two lock tongues, two toggle pieces and two transmission pins are symmetrically arranged, and an elastic piece for enabling the lock tongues to abut against the lock groove is arranged between the two lock tongues; the side wall of the cam is provided with two curved surface grooves; one end of the lock hook is hinged to the hinged end of the lock body, the other end of the lock hook is a movable end capable of rotating around the hinged end, and the hinged end and the movable end are both provided with the lock groove.

Optionally, the poking member is detachably connected to the lock body through the pin shaft, and the lock body and the poking member are provided with a plurality of insertion holes for the pin shaft to be inserted into.

Optionally, the pressing end has a front surface and a back surface, and the electronic driving component faces the front surface of the pressing end; the lock body is internally provided with a detection assembly, and the detection assembly comprises a first detection piece facing to the back face of the abutting end or/and a second detection piece triggered by the lock hook during axial movement.

Optionally, the locking tongue is provided with a slot for inserting the toggle end.

Optionally, the energy storage unit is a capacitor.

Optionally, the NFC module includes a control motherboard, an antenna housing disposed on an outer peripheral side of the lock body, and an NFC antenna disposed in the antenna housing, and the NFC antenna and the energy storage unit are electrically connected to the control motherboard.

The passive NFC anti-misoperation padlock has the advantages that the NFC module capable of being induced by NFC unlocking equipment supplies power to the energy storage unit, the energy storage unit supplies power to the electronic driving assembly, the electronic driving assembly pushes the abutting end of the stirring piece, the pin shaft serves as a fulcrum, the stirring end of the stirring piece stirs the lock tongue to exit from the lock groove by utilizing the lever principle, and the lock hook is unlocked.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of a passive NFC error-prevention padlock according to an embodiment of the present invention;

fig. 2 is an exploded view of a passive NFC error-proof padlock according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a passive NFC error-proof padlock according to an embodiment of the present invention in a locked state;

fig. 4 is a cross-sectional view of a passive NFC anti-error padlock according to an embodiment of the present invention in an unlocked state (a shackle is not yet ejected);

fig. 5 is a cross-sectional view of a passive NFC anti-misoperation padlock according to an embodiment of the present invention in an unlocked state (with a shackle being popped up);

fig. 6 is a schematic perspective view of a cam of a passive NFC error-prevention padlock according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a cam of a passive NFC anti-malfunction padlock provided by an embodiment of the present invention;

fig. 8 is a cross-sectional view of a lock case of a passive NFC anti-error padlock according to an embodiment of the present invention;

fig. 9 is a schematic perspective view of a cylinder of a passive NFC error-prevention padlock according to an embodiment of the present invention.

In the figure:

1. a lock body; 10. a lock case; 101. an antenna housing; 102. a lock hook hole; 103. a limiting groove; 104. a lock tongue hole; 105. a strip-shaped opening; 106. a fastener; 11. a lock liner; 111. a seal ring; 112. a base plate;

20. a latch hook; 21. a hinged end; 211. a first locking groove; 22. a movable end; 221. a second locking groove; 23. a latch hook spring; 24. a spacing pin;

30. a latch bolt spring; 31. a first bolt; 311. a first insertion end; 312. a slot; 32. a second bolt; 321. a second insertion end;

40. a pin shaft; 41. a first toggle piece; 411. a first abutting end; 412. a first toggle end; 42. a second toggle piece; 421. a second pressing end; 422. a second toggle end;

51. a first drive pin; 52. a second drive pin;

60. a cam; 601. a first curved surface groove; 602. a second curved surface groove; 603. a boss portion; 61. a drive member; 62. an energy storage unit;

71. a first detecting member; 72. a second detecting member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, directly disposed or connected, or indirectly disposed or connected through intervening elements or intervening structures.

In addition, in the embodiments of the present invention, if there are terms of orientation or positional relationship indicated by "longitudinal direction", "lateral direction", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., it is only for convenience of description and simplification of description based on the orientation or positional relationship shown in the drawings or the conventional placing state or using state, and it does not indicate or imply that the structures, features, devices or elements referred to must have a specific orientation or positional relationship or must not be constructed and operated in a specific orientation, and thus, it is not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

The various features and embodiments described in the embodiments may be combined in any suitable manner, for example, different embodiments may be formed by combining different features/embodiments, and in order to avoid unnecessary repetition, various possible combinations of features/embodiments in the present invention will not be described in detail.

As shown in fig. 1 to 3, in the passive NFC anti-misoperation padlock (hereinafter referred to as a padlock) according to an embodiment of the present invention, the padlock includes a lock body 1, a shackle 20 connected to the lock body 1, and a locking tongue disposed in the lock body 1, the shackle 20 is provided with a locking slot, one end of the locking tongue is an insertion end that can be inserted into the locking slot to lock the shackle 20, in this embodiment, the locking tongue includes a first locking tongue 31 and a second locking tongue 32 that are symmetrically disposed, the locking slot includes a first locking slot 211 and a second locking slot 221 that are respectively disposed at two ends of the shackle 20, the shackle 20 is in an inverted "U" shape, the first locking slot 211 and the second locking slot 221 can be respectively disposed at two inner sides of the shackle 20, that is, the first locking slot 211 and the second locking slot 221 are disposed opposite to each other, one end of the first locking tongue 31 is a first insertion end 311 that can be inserted into the first locking slot 211, one end of the second locking tongue 32 is a second insertion end 321 that can be inserted into the second, the first insertion end 311 is disposed toward the first locking groove 211, and the second insertion end 321 is disposed toward the second locking groove 221. For convenience of description, in this embodiment, a direction in which the insertion end is inserted into the locking groove is taken as a locking direction, and a direction in which the insertion end is withdrawn from the locking groove is taken as an unlocking direction, where a direction in which the first insertion end 311 is inserted into the first locking groove 211 is taken as a first locking direction, a direction in which the first insertion end 311 is withdrawn from the first locking groove 211 is taken as a first unlocking direction, a direction in which the second insertion end 321 is inserted into the second locking groove 221 is taken as a second locking direction, and a direction in which the second insertion end 321 is withdrawn from the second locking groove 221 is taken as a second unlocking; referring to fig. 3, the padlock further includes a toggle member swingably disposed in the lock body 1 through a pin 40, an electronic driving assembly disposed in the lock body 1, an energy storage unit 62 for supplying power to the electronic driving assembly, and an NFC module electrically connected to the energy storage unit 62, wherein one end of the toggle member is a toggle end connected to the lock tongue, and the other end of the toggle member is a pressing end capable of pressing against the electronic driving assembly. When the first abutting end 411 and the second abutting end 421 are subjected to an external force (in this embodiment, the electronic driving assembly applies the external force to the first abutting end 411 and the second abutting end 421) and swing in the direction of the external force, the first toggle end 412 and the second toggle end 422 may swing in another direction (the direction opposite to the external force) respectively with the pin shaft 40 as the axis, that is, the first toggle member 41 and the second toggle member 42 may perform a lever motion with the pin shaft 40 as the fulcrum. When unlocking, an unlocking device with NFC function, such as an unlocking key with NFC function, a mobile phone or other terminal, may be used to approach the padlock, the unlocking device may store the electric quantity in the energy storage unit 62 through the NFC module, the energy storage unit 62 supplies power and the NFC module controls the electronic driving component to push the first abutting end 411 and the second abutting end 421 respectively towards the first locking direction and the second locking direction, because the first abutting end 411 and the second abutting end 421 respectively receive an external force towards the locking direction (the first abutting end 411 receives an external force towards the first locking direction, and the second abutting end 421 receives an external force towards the second locking direction), the first toggle member 41 and the second toggle member 42 respectively use the pin 40 as a fulcrum to respectively move the first toggle end 412 and the second toggle end 422 towards the unlocking direction by using the lever principle (the first toggle end 412 moves towards the first locking direction, the second toggle end 422 moves towards the second latching direction), and then the first latch bolt 31 and the second latch bolt 32 are respectively toggled, so that the first latch bolt 31 and the second latch bolt 32 respectively move towards the first unlocking direction and the second unlocking direction until the first insertion end 311 and the second insertion end 321 respectively exit from the first latch groove 211 and the second latch groove 221, thereby releasing the restriction on the latch hook 20. According to the passive NFC anti-misoperation padlock provided by the embodiment, the first poking piece 41 and the second poking piece 42 form a lever with the pin shaft 40 respectively, and the position of the pin shaft 40 is selected and adjusted according to actual requirements, so that the length of the first abutting end 411 is longer than that of the first poking end 412, and the length of the second abutting end 421 is longer than that of the second poking end 422, and therefore, the driving force required when the first poking piece 41 and the second poking piece 42 respectively poke the first lock tongue 31 and the second lock tongue 32 can be effectively reduced by utilizing the lever principle, namely, the driving resistance for driving unlocking is reduced, the unlocking of the padlock is more reliable, and the success rate is higher. It should be noted that, in the present embodiment, the length of the first abutting end 411 refers to the length from the end of the first abutting end 411 to the axis of the pin 40, and the first toggle end 412, the second abutting end 421 and the second toggle end 422 are understood in the same way.

Specifically, as a first possible implementation manner of the electronic driving assembly of this embodiment, the electronic driving assembly includes a driving member 61 electrically connected to the energy storage unit 62 and a cam 60 driven by the driving member 61, the driving member 61 may be a dc speed-reducing motor, and may also be another driving member, the cam 60 is connected to a rotating shaft of the dc speed-reducing motor, and a side wall of the cam 60 abuts against the first abutting end 411 and the second abutting end 421. When the energy storage unit 62 supplies power to the dc gear motor to rotate the cam 60, the side wall of the cam 60 can directly act on the first abutting end 411 and the second abutting end 421 to push the first abutting end 411 to swing toward the first locking direction and the second abutting end 421 to swing toward the second locking direction, and due to the action of the pin shaft 40, the first toggle end 412 can toggle the first latch bolt 31 toward the first unlocking direction and the second toggle end 422 can toggle the second latch bolt 32 toward the second locking direction, so that the first insertion end 311 and the second insertion end 321 respectively exit from the first latch groove 211 and the second latch groove 221.

Specifically, as shown in fig. 3, as a second possible implementation manner of the electronic driving assembly of this embodiment, the difference from the first possible implementation manner is that the electronic driving assembly may further include a transmission pin, one end of the transmission pin may abut against the side wall of the cam 60, and the other end of the transmission pin may abut against the abutting end, in this embodiment, the transmission pin includes a first transmission pin 51 and a second transmission pin 52, wherein one end of the first transmission pin 51 may abut against the side wall of the cam 60, the other end of the first transmission pin 51 may abut against the first abutting end 411, one end of the second transmission pin 52 may abut against the side wall of the cam 60, and the other end of the second transmission pin 52 may abut against the second abutting end 421. As shown in fig. 4 and 5, when the cam 60 rotates, the side wall of the cam 60 may directly act on the first driving pin 51 and the second driving pin 52, and push the first driving pin 51 toward the first locking direction and push the second driving pin 52 toward the second locking direction, and the first dialing end 412 may dial the first latch bolt 31 toward the first unlocking direction, and the second dialing end 422 may dial the second latch bolt 32 toward the second unlocking direction, so that the first inserting end 311 and the second inserting end 321 exit the first locking groove 211 and the second locking groove 221, respectively.

Specifically, as shown in fig. 6 and 7, the side wall of the cam 60 is provided with a curved groove, the curved groove may not completely cover the side wall of the cam 60, that is, the side wall of the cam 60 may further include a protrusion 603 protruding relative to the curved groove, in this embodiment, the curved groove includes a first curved groove 601 and a second curved groove 602, the first curved groove 601 and the second curved groove 602 may be disposed opposite to each other, and the first curved groove 601 and the second curved groove 602 are separated by the protrusion 603, when locked, the first transmission pin 51 and the second transmission pin 52 respectively abut against the groove walls of the first curved groove 601 and the second curved groove 602, and in this embodiment, one end of the first transmission pin 51 and the second transmission pin 52 extending into the first curved groove 601 and the second curved groove 602 is a curved end that is curved (including spherical), the curved ends of the first transmission pin 51 and the second transmission pin 52 may respectively abut against the groove walls of the first curved groove 601 and the second curved groove 602, the rotation of the cam 60 is smoother, the cam 60 is prevented from being jammed with the first transmission pin 51 and the second transmission pin 52 when rotating, and the unlocking reliability of the padlock is improved. When the cam 60 rotates, the curved ends of the first transmission pin 51 and the second transmission pin 52 can slide in the first curved groove 601 and the second curved groove 602 respectively until sliding out of the first curved groove 601 and the second curved groove 602 and abutting against the protrusion 603 of the cam 60 (see fig. 7, a part of the sidewall of the non-curved groove), so that the first transmission pin 51 pushes the first abutting end 411 toward the first locking direction and the second transmission pin 52 pushes the second abutting end 421 toward the second locking direction. Of course, in other embodiments, as an equivalent alternative, the curved grooves may not be provided, and the first driving pin 51 and the second driving pin 52 may be directly connected to the side wall of the cam 60, for example, the cam 60 may have an oval, rugby ball or polygon structure, and the same effect as the present embodiment may also be achieved.

Specifically, as shown in fig. 3, the first toggle member 41 and the second toggle member 42 can be detachably connected to the lock body 1 through the pin 40, which is beneficial to separately replace the first toggle member 41 and the second toggle member 42 when the first toggle member 41 and the second toggle member 42 are worn or corroded, further, the lock body 1, the first toggle member 41, and the second toggle member 42 can be provided with a plurality of insertion holes (not shown in the figure) for inserting the pin 40, the insertion holes can be sequentially arranged along the first abutting end 411 to the first toggle end 412, the second abutting end 421 to the second toggle end 422 at intervals, in specific applications, the axial center and the fulcrum of the first toggle member 41 and the second toggle member 42 when swinging can be changed by replacing the insertion holes into which the pin 40 is inserted, so as to change the lever effect of the first toggle member 41 and the second toggle member 42, for example, when the pin 40 is inserted into the insertion hole closer to the first toggle end 412 or the second toggle end 422, according to the lever principle, the power arm becomes long and the resistance arm becomes short, so that the driving force required for turning the first lock bolt 31 or the second lock bolt 32 is reduced, namely, the driving resistance is reduced by phase change. Of course, in a specific application, the lever effect can be increased or decreased by replacing the first toggle piece 41 or/and the second toggle piece 42.

Specifically, as shown in fig. 3, the first latch bolt 31 and the second latch bolt 32 are both provided with an insertion slot 312, the first toggle end 412 is connected with the first latch bolt 31 through the insertion slot 312, and the second toggle end 422 is connected with the second latch bolt 32 through the insertion slot 312, in this embodiment, the first toggle part 41 and the second toggle part 42 may be components with the same shape and size, taking the first toggle part 41 as an example, the first toggle part 41 includes a circular rotating part, a first toggle end 412 connected to the rotating part, and a first pressing end 411, where the first toggle end 412 may be in a triangular shape with a width gradually decreasing from the rotating part to an end part, so that the strength of the first toggle end 412 may be improved; further, the first pulling end 412 and the first abutting end 411 may be connected to two sides of the rotating portion, and an included angle between the first pulling end 412 and the first abutting end 411 may be an obtuse angle or a straight angle.

Specifically, as shown in fig. 5, one end of the lock hook 20 is a hinged end 21 hinged to the lock body 1 and capable of moving axially in the lock hook hole 102, the other end of the lock hook 20 is a movable end 22 capable of rotating around the hinged end 21, the first lock groove 211 is located at the hinged end 21, the second lock groove 221 is located at the movable end 22, the first lock groove 211 and the second lock groove 221 can be disposed oppositely, and the first lock groove 211 and the second lock groove 221 can be located on the same horizontal line, the lock body 1 is provided with a limiting groove 103 for inserting the movable end 22, the second lock groove 221 can extend into the limiting groove 103 along with the movable end 22, and after the movable end 22 is inserted into the limiting groove 103, the movable end 22 is limited by the limiting groove 103 and cannot rotate around the hinged end 21; further, hinged end 21 is provided with latch hook spring 23, and the one end of latch hook spring 23 is connected in hinged end 21, and the other end of latch hook spring 23 is connected in lock body 1, and latch hook spring 23 can be in compression state all the time, provides an ascending effort for latch hook 20, and after first spring bolt 31 withdrawed from first lock groove 211 and second spring bolt 32 withdrawed from second lock groove 221, latch hook 20 alright in order to move up under the effect of latch hook spring 23, drive expansion end 22 simultaneously and withdraw from spacing groove 103. In a specific application, the lock body 1 may be provided therein with a limit pin 24 for limiting the hinge end 21 from disengaging from the shackle hole 102, and the limit pin 24 may penetrate into the shackle hole 102 from the outside of the lock body 1 to limit the hinge end 21 from disengaging from the shackle hole 102, thereby improving the reliability of the padlock.

Specifically, as shown in fig. 3, a bolt spring 30 is connected between the first bolt 31 and the second bolt 32, the bolt spring 30 may be in a compressed state all the time, and the first bolt 31 abuts against the first lock groove 211 and the second bolt 32 abuts against the second lock groove 221, in other embodiments, the first bolt 31 and the second bolt 32 may also be connected to the lock body 1 through different bolt springs 30.

In specific applications, as a possible alternative embodiment of the present embodiment, the lock tongue, the toggle member and the driving pin may be respectively provided with one lock groove, the lock groove may be provided at the hinge end 21, and the lock groove may also be provided at the movable end 22.

Specifically, as shown in fig. 3, the first insertion end 311 and the second insertion end 321 have guiding portions (not shown), which may be beveled or tapered or rounded or chamfered, and the guiding portions may be disposed at upper sides of the first insertion end 311 and the second insertion end 321. When the padlock needs to be locked, the movable end 22 is aligned with the limiting groove 103 to press the shackle 20 downwards, the shackle 20 compresses the shackle spring 23 to move downwards, when the movable end 22 extends into the limiting groove 103, the movable end 22 abuts against the guide portion of the second insertion end 321, and continues to press, the movable end 22 pushes the second lock tongue 32 to move towards the second unlocking direction (i.e., the direction close to the first lock tongue 31), until the second lock groove 221 is aligned with the second lock tongue 32, at this time, under the action of the shackle spring 30, the first insertion end 311 is inserted into the first lock groove 211, and the second insertion end 321 is inserted into the second lock groove 221, thereby completing the locking operation of the padlock. In addition, the guide part can guide the first insertion end 311 to be inserted into the first lock groove 211 and the second insertion end 321 to be inserted into the second lock groove 221 during locking, so that the first insertion end 311 and the second insertion end 321 can be inserted more smoothly, and the reliability of padlock locking is improved.

Specifically, as shown in fig. 3, the second pressing end 421 has a front surface and a back surface, and a detection assembly is disposed in the lock body 1, as a first possible implementation manner of the detection assembly in this embodiment, the detection assembly may include a first detection element 71, the second transmission pin 52 faces the front surface of the second pressing end 421, and the first detection element 71 faces the back surface of the second pressing end 421, it can be understood that the second transmission pin 52 faces the front surface of the second pressing end 421, that is, the second transmission pin 52 abuts (contacts) the front surface of the second pressing end 421 in the locked state, or the second transmission pin 52 does not contact the front surface of the second pressing end 421 in the locked state (that is, a certain gap is formed between the second transmission pin 52 and the second pressing end 421), and similarly, the first transmission pin 51 also faces the front surface of the first pressing end 411, that is, the first transmission pin 51 may contact the first pressing end 411 in the locked state, in short, in the locked state, the first transmission pin 51 may contact both the first abutting end 411 and the cam 60, may contact only one of the first abutting end 411 or the cam 60, and the second transmission pin 52 may contact both the second abutting end 421 and the cam 60, or may contact only one of the second abutting end 421 or the cam 60. In this embodiment, the first detecting member 71 may be a travel switch, and in other embodiments, may be another detecting member. Referring to fig. 3, in the locked state, a certain gap may exist between the second abutting end 421 and the first detecting element 71, that is, the state of the first detecting element 71 is "not pressed", referring to fig. 4, when the second driving pin 52 pushes the second abutting end 421 to swing toward the second locking direction, the back surface of the second abutting end 421 presses the first detecting element 71, so that the state of the first detecting element 71 changes from "not pressed" to "pressed", at this time, the first toggle end 412 and the second toggle end 422 toggle the first latch tongue 31 and the second latch tongue 32 respectively to exit from the first latch groove 211 and the second latch groove 221, and the latch hook 20 releases the restriction and pops up; referring to fig. 5, the cam 60 may then rotate back to the initial state (it should be noted that the initial state refers to the curved groove facing the driving pin, and not only refers to the cam 60 returning to the initial position, where the initial state includes the first curved groove 601 facing the first driving pin 51, and the second curved groove 602 facing the first driving pin 51, and when the first curved groove 601 facing the first driving pin 51, the second curved groove 602 facing the second driving pin 52, and correspondingly, when the second curved groove 602 facing the first driving pin 51, the first curved groove 601 facing the second driving pin 52, the second latch 32 will drive the second toggle end 422 to return to the second latching direction under the action of the latch spring 30, and the second pressing end 421 will push the second driving pin 52 to the second latching direction, so that the curved end of the second driving pin 52 abuts against the curved groove (which may be the first curved groove 601, or a groove wall of the second curved groove 602), and the first insertion end 311 of the first latch 31 abuts against the hinge end 21 of the latch hook 20, the states of the first toggle member 41 and the first transmission pin 51 are not changed, so that the curved end of the first transmission pin 51 faces the curved groove (the first curved groove 601 or the second curved groove 602) but does not contact with the curved groove, that is, a gap is formed between the first transmission pin 51 and the cam 60, the state of the first detection member 71 is changed from "squeezed" to "not squeezed", and the driving member 61 can stop rotating according to a signal fed back by the first detection member 71. In a specific application, the first detecting member 71 may also face the back of the first pressing end 411.

Specifically, as shown in fig. 3, as a second possible implementation manner of the detection assembly in this embodiment, the detection assembly may further include a second detection member 72 triggered when the shackle 20 moves axially, the second detection member 72 may be located toward the bottom of the hinged end 21, and in the locked state, the hinged end 21 may contact the second detection member 72 and press the second detection member 72, that is, the state of the second detection member 72 is "pressed", when the first locking tongue 31 exits from the first locking groove 211 and the second locking tongue 32 exits from the second locking groove 221, the shackle 20 springs upward, the hinged end 21 no longer presses the second detection member 72, and the state of the second detection member 72 changes from "pressed" to "unpressed", so that it can be determined that the unlocking of the padlock has been completed.

In a specific application, the second detecting member 72 may be a travel switch, or may be another detecting member; in other embodiments, the second detecting member 72 may be disposed in the limiting groove 103, and in the locked state, the movable end 22 may contact the second detecting member 72 and press the second detecting member 72, and when the movable end 22 springs upward along with the locking hook 20, the state of the second detecting member 72 changes accordingly.

It is understood that, in practical applications, one or two of the above two possible embodiments of the detection assembly may be selected, and of course, other suitable arrangements may also be selected.

Specifically, as shown in fig. 1 and fig. 3, the NFC module includes a control motherboard (not shown in the figure), an antenna housing 101 disposed on the outer periphery of the lock body 1, and an NFC antenna disposed in the antenna housing 101, and the NFC antenna, the energy storage unit 62, and the detection component may be electrically connected to the control motherboard, wherein the energy storage unit 62 may be a capacitor or other energy storage units, and the antenna housing 101 may be made of a non-metal material, such as plastic.

In a specific application, a power module can be added to the lock body 1 according to actual requirements, for example, a battery slot and a slot cover covering the battery slot are arranged in the lock body 1, and a battery is loaded in the battery slot, so that the running time and the working power of the driving member 61 can be effectively improved, and the slot cover can be opened to directly replace a new battery when the battery capacity is exhausted. Of course, a lithium battery can be arranged in the lock body 1, a charging interface is arranged outside the lock body 1, and when the electric quantity of the lithium battery is exhausted, the lithium battery can be charged by using the charging interface.

In specific application, according to different actual application scenarios, the NFC module may also be replaced with other inductive unlocking modules, such as an RFID (Radio Frequency Identification) module. Furthermore, the electronic driving assembly can be replaced by a mechanical unlocking assembly, and a traditional computer key can be used for identification and unlocking.

Specifically, as shown in fig. 2 and 3, the lock body 1 includes a lock cylinder 11 and a lock case 10 sleeved on the periphery of the lock cylinder 11, referring to fig. 5, a limiting groove 103 is disposed on the lock case 10, the lock case 10 is fixedly connected to the lock cylinder 11 through a fastener 106 disposed in the limiting groove 103, a driving member 61, an energy storage unit 62, a detection assembly, a cam 60, a first driving pin 51 and a second driving pin 52 are disposed in the lock cylinder 11, wherein, referring to fig. 3, the driving member 61 and the energy storage unit 62 may be disposed adjacently, the cam 60 is connected to a rotating shaft at the top of the driving member 61, and the first driving pin 51 and the second driving pin 52 may be located at two sides of the cam 60; referring to fig. 2, a bottom plate 112 may be connected to the bottom of the cylinder 11, the bottom of the lock case 10 is an opening, and the cylinder 11 may enter the lock case 10 through the opening and be blocked by the bottom plate 112; further, referring to fig. 9, the surface of the cylinder 11 may be provided with a plurality of mounting holes or mounting grooves (not labeled) for correspondingly positioning and assembling various components when being matched with the lock case 10; referring to fig. 8, a lock tongue hole 104 is formed in the top of the lock case 10, one end of the lock tongue hole 104 is communicated with the limiting groove 103, the other end of the lock tongue hole 104 is communicated with the lock hook hole 102, the first lock tongue 31 and the second lock tongue 32 are slidably disposed in the lock tongue hole 104 and connected through a lock tongue spring 30, an elongated opening 105 may be formed in the bottom of the lock tongue hole 104, the first toggle member 41 and the second toggle member 42 are connected to the lock case 10 through a pin 40, and the first toggle end 412 and the second toggle end 422 extend out of the lock core 11 and extend into the lock tongue hole 104 through the elongated opening 105 to be connected with the first lock tongue 31 and the second lock tongue 32, respectively.

Specifically, as shown in fig. 3, a sealing ring 111 is disposed between the bottom plate 112 and the bottom of the cylinder tube 11, and the sealing ring 111 is used to prevent liquid or dust from entering the lock body 1 from the bottom of the lock case 10. Further, a sealing ring (not marked in the figure) can be sleeved between the outer peripheral sides of the first lock tongue 31 and the second lock tongue 32 and the lock tongue hole 104 to prevent liquid or sundries from entering the lock tongue hole 104 and entering the lock cylinder 11 through the strip-shaped opening 105, and further, a sealing ring (not marked in the figure) can be sleeved between the hinged end 21 and the lock body 1 to prevent liquid or sundries from entering the lock cylinder 11 from the lock hook hole 102 and prevent the liquid or sundries from influencing the use of all parts in the lock cylinder 11, so that the service life of the padlock is prolonged.

The unlocking method of the embodiment is as follows: when unlocking equipment with an NFC function is used to be close to the antenna shell 101, the NFC antenna induces the unlocking equipment and supplies power to the energy storage unit 62 and the control mainboard, meanwhile, the control mainboard can establish communication connection with the unlocking equipment through the NFC antenna, and the unlocking equipment can acquire an identity identification code of a padlock and determine whether the padlock is a padlock to be operated or not; after the identity is confirmed, an unlocking instruction can be sent to the control main board by using an unlocking device, referring to fig. 3, the control main board (not shown in the figure) controls the driving member 61 and the energy storage unit 62 supplies power to the driving member 61, so that the driving member 61 rotates the cam 60, the side wall of the cam 60 acts on the first driving pin 51 and the second driving pin 52 located at the left and right sides of the driving member, referring to fig. 4, the first driving pin 51 and the second driving pin 52 respectively push the first abutting end 411 and the second abutting end 421 to swing outward in the first locking direction and the second locking direction, at this time, the back surface of the second abutting end 421 presses the first detecting member 71, so that the state of the first detecting member 71 is changed from "not pressed" to "pressed", and the first bolt 31 and the second bolt 32 respectively push the first dialing end 412 and the second dialing end 422 to compress the bolt spring 30 and slide towards each other and approach each other until the first inserting end 311 and the second inserting end 321 exit from the first locking groove 211 and the second locking groove 221 respectively, thereby releasing the restriction on the latch hook 20, the latch hook 20 will be sprung upward under the action of the latch hook spring 23, and the state of the second detecting member 72 is changed from "pressed" to "not pressed"; referring to fig. 5, the cam 60 continues to rotate until the curved groove is turned towards the first driving pin 51 and the second driving pin 52 (either the first curved groove 601 towards the first driving pin 51 or the second curved groove 602 towards the first driving pin 51), at which point the second driving pin 52 loses support, the second latch 32 drives the second pressing end 421 to slide outward (in the second locking direction) under the action of the latch spring 30, so that the second pressing end 421 pushes the second driving pin 52 to slide toward the direction close to the cam 60 until the second driving pin 52 abuts against the groove wall of the first curved groove 601 or the second curved groove 602, meanwhile, the state of the first detection piece 71 is changed from 'squeezed' to 'not squeezed', the control main board can control the driving piece 61 to stop rotating the cam 60, so as to complete unlocking, and after unlocking is completed, information that the padlock is successfully unlocked can be sent to the unlocking device through the NFC antenna. When the padlock is locked, the movable end 22 is aligned with the limiting groove 103 and presses the shackle 20 downward, the shackle 20 compresses the shackle spring 23 to move downward, when the movable end 22 extends into the limiting groove 103, the movable end 22 abuts against the guide portion of the second insertion end 321, the movable end 22 pushes the second tongue 32 to retract into the tongue hole 104 (i.e., the second tongue 32 moves toward the unlocking direction) until the second tongue groove 221 is aligned with the second tongue 32 and the first tongue groove 211 is aligned with the first tongue 31, the first insertion end 311 is inserted into the first tongue groove 211, the second insertion end 321 is inserted into the second tongue groove 221 under the action of the tongue spring 30, and the second detection member 72 is in contact with the hinge end 21 to sense, thereby completing the locking operation of the padlock. In specific application, after locking is completed, the unlocking device can be close to the padlock again to obtain locking information of the padlock, and after the unlocking device obtains unlocking and locking information of the padlock, relevant information can be synchronized to the server.

According to the passive NFC anti-misoperation padlock provided by the embodiment of the invention, the energy storage unit 62 is powered by the NFC module which can be induced by the NFC unlocking device, the energy storage unit 62 provides power for the electronic driving component, so that the electronic driving component simultaneously pushes the first abutting end 411 and the second abutting end 421, the first toggle end 412 and the second toggle end 422 respectively toggle the first lock tongue 31 and the second lock tongue 32, the first insertion end 311 exits the first lock groove 211, the second insertion end 321 exits the second lock groove 221, and the lock hook 20 is unlocked. The padlock that this embodiment provided has utilized lever principle to reduce the required drive power when stirring the spring bolt, even if also can guarantee the reliability of unblock under the unstable condition of electric power to when the shutting resets, stirring and driving pin can not influence the spring bolt and reset, have the good characteristics of reliability that resets, thereby solved the relatively poor shortcoming of passive NFC padlock unblock reliability among the prior art.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents or improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A passive NFC anti-misoperation padlock comprises a lock body, a lock hook connected to the lock body and a lock tongue arranged in the lock body, wherein the lock hook is provided with a lock groove for inserting the end part of the lock tongue to lock the lock hook; one end of the poking piece is a poking end used for poking the lock tongue, and the other end of the poking piece is a pressing end pushed by the electronic driving assembly.

2. A passive NFC anti-error padlock as recited in claim 1, wherein the electronic drive assembly includes a drive member electrically connected to the energy storage unit and a cam driven by the drive member.

3. The passive NFC anti-misoperation padlock of claim 2, wherein the electronic driving assembly further comprises a driving pin, one end of the driving pin is capable of abutting against the cam, and the other end of the driving pin is capable of abutting against the abutting end.

4. A passive NFC anti-misoperation padlock according to claim 3, wherein the side wall of the cam is provided with a curved groove, and one end of the driving pin extends into the curved groove and abuts against the groove wall of the curved groove.

5. The passive NFC error-preventing padlock according to claim 4, wherein two lock tongues, two poking members and two transmission pins are symmetrically arranged, an elastic member for enabling the lock tongues to abut against the lock grooves is arranged between the two lock tongues, two curved grooves are formed in the side wall of the cam, one end of the lock hook is a hinged end hinged to the lock body, the other end of the lock hook is a movable end capable of rotating around the hinged end, and the hinged end and the movable end are both provided with the lock grooves.

6. A passive NFC error prevention padlock according to any one of claims 1 to 5, wherein the toggle member is detachably connected to the lock body by the pin, and the lock body and the toggle member are provided with a plurality of insertion holes for insertion of the pin.

7. A passive NFC anti-misoperation padlock according to any one of claims 1 to 5, wherein the abutting end has a front face and a back face, the electronic driving component faces the front face of the abutting end, a detection component is arranged in the lock body, and the detection component comprises a first detection piece facing the back face of the abutting end or/and a second detection piece triggered by axial movement of the shackle.

8. A passive NFC error protection padlock as claimed in any one of claims 1 to 5, wherein the locking bolt is provided with a slot for insertion of the toggle end.

9. A passive NFC anti-misoperation padlock according to any one of claims 1 to 5, wherein the energy storage unit is a capacitor.

10. The passive NFC anti-misoperation padlock according to any one of claims 1 to 5, wherein the NFC module comprises a control motherboard, an antenna housing disposed on an outer peripheral side of the lock body, and an NFC antenna disposed in the antenna housing, and the NFC antenna and the energy storage unit are electrically connected to the control motherboard.