CN110424832B

CN110424832B - Electronic padlock

Info

Publication number: CN110424832B
Application number: CN201910746146.3A
Authority: CN
Inventors: 刘仙; 陈志鸿
Original assignee: Zhuhai Unitech Power Technology Co Ltd
Current assignee: Zhuhai Unitech Power Technology Co Ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2024-03-15
Anticipated expiration: 2039-08-13
Also published as: CN110424832A

Abstract

The invention provides an electronic padlock. The electronic padlock comprises a lock hook, wherein the lock hook is provided with a locking structure and a hooking end positioned at the end part of the lock hook, and the hooking end is provided with a locking state hooked in the lock hole and an unlocking state separated from the lock hole; the locking assembly is arranged on the lock body assembly and comprises a driving mechanism, a clutch piece and a torsion assembly, wherein the driving mechanism is in driving connection with the clutch piece, and in a locking state, the clutch piece is in matched connection with the locking structure; in the unlocking state, the clutch piece is disconnected with the locking structure; the torsion component is arranged on the clutch component, and the clutch component can be separated from the driving mechanism under the action of torsion force of the torsion component. The driving mechanism of the electronic padlock can realize unlocking and locking actions of the electronic padlock only by rotating along the same direction, does not need to enable the power mechanism to rotate positively and negatively, has a simple structure and is convenient to control, and the power consumption of the electronic padlock can be effectively reduced.

Description

Electronic padlock

Technical Field

The invention relates to the technical field of locks, in particular to an electronic padlock.

Background

Most of the existing electronic padlocks need to be internally provided with batteries, the batteries need to be replaced frequently, and the maintenance cost is high; when in actual use, the locking operation can be completed only by battery power supply, the operation is inconvenient, and the power consumption is high. In addition, the motor in the existing padlock is always in a locked state when in work, so that the motor is damaged, and the lockset cannot work normally.

The prior art also discloses an electronic padlock, which adopts a motor to drive a transmission mechanism to realize the switching of the unlocking and locking states of the lockset, but the motor needs to rotate positively and negatively to realize the unlocking and locking, and the motor is complex to control; and the locking operation can be completed only by reversing the motor, so that the power consumption is high.

Disclosure of Invention

The invention mainly aims to provide an electronic padlock so as to solve the problems of complex structure and high power consumption of the electronic padlock in the prior art.

To achieve the above object, according to one aspect of the present invention, there is provided an electronic padlock comprising: the lock comprises a main body, wherein the main body is provided with an installation cavity and a lock hole, the main body comprises a lock shell and a lock body assembly, the installation cavity is formed in the lock shell, and the lock body assembly is installed in the installation cavity; the lock hook assembly comprises a lock hook, the lock hook is arranged on the lock body assembly and extends out of the lock shell, the lock hook is provided with a locking structure and a hooking end positioned at the end part of the lock hook, and the hooking end is provided with a locking state hooked in the lock hole and an unlocking state separated from the lock hole; the locking assembly is arranged on the lock body assembly and comprises a driving mechanism, a clutch piece and a torsion assembly, wherein the driving mechanism is in driving connection with the clutch piece, and in the locking state, the clutch piece is in matched connection with the locking structure; in the unlocking state, the clutch piece is disconnected with the locking structure; the torsion component is arranged on the clutch component, and the clutch component can be separated from the driving mechanism under the action of torsion force of the torsion component.

Further, the clutch member includes a rack portion, and the driving mechanism includes: a power mechanism; and the driving gear is arranged on the power mechanism and rotates under the driving of the power mechanism, and is used for being meshed with the rack part.

Further, the clutch member further includes an extension having a first position cooperating with the locking structure to lock the shackle and a second position disengaged from the locking structure to unlock the shackle.

Further, a limiting groove is formed in the lock body assembly, and the limiting groove extends along the direction from the driving mechanism to the clutch piece; the torsion assembly includes: the rotating shaft is movably arranged in the limiting groove, and the clutch piece is fixed on the rotating shaft; the torsion spring is sleeved on the rotating shaft, the first end of the torsion spring abuts against the lock body assembly, and the second end of the torsion spring abuts against the clutch piece; the driving mechanism drives the clutch piece to rotate, when the clutch piece is separated from the locking structure, the lock hook is switched from the locking state to the unlocking state, in the process, the torsion spring stores elastic potential energy along with the rotating shaft, and after the clutch piece is separated from the locking structure, the torsion spring releases the elastic potential energy to push the clutch piece to move along the limit groove in a direction away from the driving mechanism until the clutch piece is separated from the driving mechanism.

Further, the locking structure comprises a reset part, and the reset part is abutted against the clutch piece under the action of external force so as to enable the clutch piece to be connected with the driving mechanism in a recovery mode.

Further, the locking structure comprises a locking groove and an abdication groove, the locking groove and the abdication groove are both arranged on the side wall of the lock hook, the depth of the locking groove is smaller than that of the abdication groove, the locking groove is positioned at the bottom of the abdication groove, and the reset part is an inclined surface connecting section positioned between the locking groove and the abdication groove; when the locking structure and the clutch piece are in the same plane, the clutch piece slides into the abdication groove under the action of the torsion force of the torsion component, at the moment, the external force is applied to the lock hook so that the clutch piece slides into the locking groove along the inclined surface connecting section, the clutch piece can move towards the direction close to the driving mechanism to be in driving connection with the driving mechanism, and the lock hook is switched to the locking state.

Further, the rack part comprises a circular arc-shaped rack, the torsion assembly comprises a rotating shaft, and the circle center of the circular arc-shaped rack is positioned on the axis of the rotating shaft.

Further, the extension part is of a strip-shaped structure, the torsion assembly comprises a rotating shaft, and the strip-shaped structure is perpendicular to the rotating shaft.

Further, the lock body assembly is provided with a mounting hole, and the lock shell is provided with a yielding hole corresponding to the mounting hole; the lock hook assembly further comprises an elastic element, the elastic element is mounted at the bottom of the mounting hole, the bottom end of the lock hook is pressed on the elastic element, and in the process that the lock hook is switched from the unlocking state to the locking state, the elastic element exerts upward elastic force on the lock hook to enable the clutch piece to be connected with the driving mechanism.

Further, the electronic padlock further comprises: the electronic circuit board is arranged on the lock body assembly, and the driving mechanism is electrically connected with the electronic circuit board; a hall element mounted on the electronic circuit board; and the magnetic steel is arranged on the lock hook.

By applying the technical scheme of the invention, the driving mechanism of the electronic padlock can realize unlocking and locking actions of the electronic padlock only by rotating along the same direction, and the power mechanism does not need to be rotated forward or backward, so that the electronic padlock has a simple structure and is convenient to control, and the power consumption of the electronic padlock can be effectively reduced. In addition, the driving mechanism is not easy to generate the phenomenon of locked rotation, and the service life of the electronic padlock can be prolonged.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:

fig. 1 schematically illustrates an exploded view of an electronic padlock of the present invention;

fig. 2 schematically shows a perspective view of the latch hook of the present invention;

FIG. 3 schematically illustrates a perspective view of the latch assembly of the present invention in a latched state;

FIG. 4 schematically illustrates a perspective view of the latch assembly of the present invention during an unlocking process;

FIG. 5 schematically illustrates a perspective view of the latch assembly of the present invention in an unlatched condition;

FIG. 6 schematically illustrates a perspective view of the latching assembly of the present invention in the latching process;

fig. 7 schematically illustrates a cross-sectional view of the electronic padlock of the present invention in a locked state;

FIG. 8 schematically shows a cross-sectional view A-A in FIG. 7;

fig. 9 schematically illustrates a cross-sectional view of the electronic padlock of the present invention during an unlocking process;

FIG. 10 schematically shows a cross-sectional view B-B in FIG. 9;

fig. 11 schematically illustrates a cross-sectional view of the electronic padlock of the present invention in an unlocked state;

FIG. 12 schematically illustrates a cross-sectional view C-C of FIG. 11;

fig. 13 schematically illustrates a cross-sectional view of the electronic padlock of the present invention during a locking process;

fig. 14 schematically shows a D-D cross-sectional view in fig. 13.

Wherein the above figures include the following reference numerals:

110. a lock case; 112. a relief hole; 113. a lock hole; 120. a locking body; 121. a limit groove; 122. a mounting hole; 130. a latch hook; 131. a locking groove; 132. a relief groove; 133. a beveled connection section; 134. a vertical mounting section; 1341. a limit groove; 135. a hook section; 141. a power mechanism; 142. a drive gear; 143. a clutch member; 1431. a rack portion; 1432. an extension; 144. a rotating shaft; 145. a torsion spring; 150. a lower lock body; 151. a computer key interface; 160. an electronic circuit board; 170. an elastic element; 180. magnetic steel; 190. a limiting pin; 200. and positioning the cavity.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

Referring to fig. 1 to 14, according to an embodiment of the present invention, there is provided an electronic padlock, which includes a main body, a shackle assembly, and a latch assembly.

Wherein, the main body is provided with a mounting cavity and a lock hole 113, the main body comprises a lock shell 110 and a lock body assembly, the mounting cavity is formed on the lock shell 110, and the lock hole 113 extends to the lock body assembly through the lock shell 110; the lock body component is arranged in the mounting cavity; the latch hook assembly comprises a latch hook 130, the latch hook 130 is mounted on the lock body assembly and extends out of the lock shell 110, the latch hook 130 is provided with a locking structure and a hooking end positioned at the end of the latch hook 130, and when in actual work, the hooking end of the latch hook 130 is provided with a locking state hooked in the lock hole 113 and an unlocking state separated from the lock hole 113.

The locking assembly is arranged on the lock body assembly and comprises a driving mechanism, a clutch piece 143 and a torsion assembly, wherein the driving mechanism is in driving connection with the clutch piece 143, and in a locking state, the clutch piece 143 is in matched connection with the locking structure; in the unlocked state, the clutch 143 is disconnected from the locking structure; the torsion assembly is disposed on the clutch member 143, and the clutch member 143 can be separated from the driving mechanism under the torsion force of the torsion assembly.

Because the clutch member 143 and the locking structure are in the disconnected state when the electronic padlock is in the unlocking state, the phenomenon of locked rotation is not easy to occur even if the driving mechanism continues to move, and the service life of the electronic padlock in the embodiment can be prolonged.

Specifically, the driving mechanism in this embodiment includes a power mechanism 141 and a driving gear 142, where the driving gear 142 is mounted on the power mechanism 141 and rotates under the driving of the power mechanism 141, and correspondingly, a rack portion 1431 is provided on the clutch member 143, and in actual operation, the driving gear 142 is used to mesh with the rack portion 1431, and the power mechanism 141 drives the driving gear 142 to rotate, drives the rack portion 1431 and the clutch member 143 to rotate, so that the clutch member 143 is disconnected from the locking structure. When the clutch member 143 is disconnected from the locking structure, the clutch member 143 can be disengaged from the driving mechanism by the torque of the torsion assembly.

The clutch 143 further includes a protrusion 1432, the protrusion 1432 having a first position for engagement with the locking structure and a second position for disengagement from the locking structure, the drive gear 142 being coupled to the rack 1431 when the protrusion 1432 is in the first position; when the protruding portion 1432 is in the second position, the drive gear 142 is disconnected from the rack portion 1431.

Preferably, the power mechanism 141 in this embodiment is a motor assembly. Specifically, under the action of the power mechanism 141, the driving gear 142 and the protruding portion 1432 of the clutch member 143 can be driven to separate from the locking structure, at this time, the latch hook 130 is switched from the locking state to the unlocking state, the clutch member 143 moves in a direction away from the driving gear 142 under the action of the torsion assembly to separate from the driving gear 142, the power mechanism 141 can idle, and the phenomenon of locked rotation of the power mechanism 141 is prevented.

As shown in fig. 1 and fig. 8 to fig. 14, the lock assembly in this embodiment includes an upper lock 120 and a lower lock 150, wherein the upper lock 120 is fixed on the top of the installation cavity; the lower lock body 150 is disposed at the bottom of the upper lock body 120 and encloses a positioning cavity 200 formed with the upper lock body 120, and the locking assembly is mounted in the positioning cavity 200, so that the locking assembly can be positioned and mounted conveniently.

In order to facilitate the installation of the torsion assembly and ensure that the clutch member 143 can be engaged with the driving mechanism, the lock body 120 in this embodiment is provided with a limiting groove 121, and the limiting groove 121 extends along the direction from the power mechanism 141 to the clutch member 143, and when in operation, the torsion assembly can slide along the limiting groove 121, so that the clutch member 143 can be connected with or separated from the clutch mechanism.

Specifically, in this embodiment, two limiting grooves 121 are respectively installed on the upper and lower sidewalls of the positioning cavity 200, two ends of the rotating shaft 144 are respectively movably installed in the limiting grooves 121, and the clutch member 143 is fixed on the rotating shaft 144; the torsion spring 145 is sleeved on the rotating shaft 144, and a first end of the torsion spring 145 is fixed on the upper lock body 120, and a second end of the torsion spring 145 is fixed on the clutch member 143.

When the driving mechanism drives the clutch member 143 to rotate, such that the protruding portion 1432 is separated from the locking structure, the latch hook 130 is switched from the locking state to the unlocking state, in this process, the torsion spring 145 stores elastic potential energy along with the rotating shaft 144, and when the protruding portion 1432 is separated from the locking structure, the torsion spring 145 releases the elastic potential energy to push the clutch member 143 to move along the limiting groove 121 in a direction away from the driving gear 142 until the clutch member 143 is separated from the driving gear 142.

As shown in fig. 2 to 6, the locking structure in the present embodiment includes a reset portion capable of restoring the clutch member 143 to the driving mechanism during the process of switching the lock hook 130 from the unlock state to the lock state, specifically, the reset portion is pressed against the clutch member 143 by an external force to restore the clutch member 143 to the driving mechanism during the process of switching the lock hook 130 from the unlock state to the lock state.

Further, the locking structure in this embodiment further includes a locking groove 131 and a yielding groove 132, wherein the locking groove 131 and the yielding groove 132 are both disposed on a sidewall of the lock hook 130, a depth of the locking groove 131 is smaller than that of the yielding groove 132, the locking groove 131 is disposed at a bottom of the yielding groove 132, and the resetting portion is a slant connection section 133 disposed between the locking groove 131 and the yielding groove 132.

Because the relief groove 132 is disposed above the locking groove 131 in the present embodiment, the protruding portion 1432 on the clutch member 143 is ensured to smoothly enter or slide out of the relief groove 132 and the locking groove 131, so as to avoid the jamming phenomenon. In actual operation, when the latch hook 130 is switched from the unlocked state to the locked state by an external force, for example, the latch hook 130 is pressed to hook the latch hook 130 in the lock hole 113, when the latch hook 130 moves to the position where the locking structure is in the same plane as the protruding portion 1432 of the clutch member 143, the protruding portion 1432 of the clutch member 143 is reset and slides into the abdicating groove 132 under the torsion force of the torsion spring 145, at this time, the external force is applied to the latch hook 130 to slide the clutch member 143 into the locking groove 131 along the inclined connecting section 133, so that the clutch member 143 moves toward the direction approaching the driving gear 142 to engage with the driving gear 142, and the latch hook 130 is switched to the locked state. The next unlocking is driven again by the power mechanism 141. The housing applied to the latch hook 130 in this embodiment may be elastic force of an elastic element 170 located at the bottom of the latch hook 130, or may be force for an operator to lift the latch hook 130 upwards.

According to the structure, the power mechanism 141 of the electronic padlock can realize unlocking and locking actions of the electronic padlock only by rotating along the same direction, the power mechanism 141 does not need to be rotated forward or backward, the structure is simple, the control is convenient, and the power consumption of the electronic padlock can be effectively reduced. In addition, the power mechanism 141 in the present embodiment is not easy to generate a locked-rotor phenomenon, and the service life of the electronic padlock in the present embodiment can be improved.

Specifically, the latch hook assembly in this embodiment further includes an elastic element 170, and by the action of the elastic element 170, on one hand, an upward elastic force is applied to the latch hook 130 in the unlocking process, so that the latch hook 130 is sprung upward to unlock; on the other hand, when the latch hook 130 is switched from the unlocked state to the locked state, after the protruding portion 1432 of the clutch member 143 is reset and slides into the yielding groove 132 under the torsion force of the torsion spring 145, the elastic element 170 can apply an upward elastic force to the latch hook 130, and at this time, the clutch member 143 is abutted by the inclined connecting section 133 and moves toward the direction approaching the driving mechanism to be connected with the driving mechanism. In order to facilitate installation and positioning of the latch hook assembly, the upper lock body 120 in this embodiment is provided with an installation hole 122, the lock shell 110 is provided with a relief hole 112 corresponding to the installation hole 122, the installation hole 122 is communicated with the positioning cavity 200, and the clutch member 143 is convenient for driving the latch hook assembly.

During installation, the elastic element 170 is installed at the bottom of the installation hole 122, and the bottom end of the latch hook 130 is pressed on the elastic element 170, when the protruding part 1432 rotates out of the yielding groove 132 and the locking groove 131, the latch hook 130 moves upwards under the action of the elastic element 170, and the latch hook 130 is switched from the locking state to the unlocking state, so that the structure is simple and convenient to realize.

Preferably, the elastic element 170 in the present embodiment is a spring, however, in other embodiments of the present invention, the elastic element 170 may be configured as an elastic rubber pad, and any other modification forms within the scope of the present invention are within the scope of Bian Ben.

The rack portion 1431 in this embodiment includes a circular arc rack, the center of which is located on the axis of the rotating shaft 144, and when the driving gear 142 drives the rack portion 1431 to rotate, the rotating shaft 144 rotates synchronously, so that the control accuracy is high.

Preferably, the protruding portion 1432 in the present embodiment has a strip structure perpendicular to the rotating shaft 144, and when the rotating shaft 144 rotates the protruding portion 1432, the elongated protruding portion 1432 can be driven to rotate out of the locking groove 131.

Of course, in other embodiments of the present invention, the protruding portion 1432 may be configured as a circular arc bump, and the protruding portion 1432 may be inclined to the rotation shaft 144, which is within the scope of the present invention as long as other modifications are possible under the concept of the present invention.

As shown in fig. 1 to 14 again, the latch hook 130 in this embodiment includes a vertical mounting section 134 and a latch section 135 disposed on top of the vertical mounting section 134, and when mounted, the vertical mounting section 134 is mounted in the mounting hole 122 and correspondingly a locking structure is disposed on a side wall of the vertical mounting section 134, so as to be cooperatively connected with the clutch 143 to switch between a locked state and an unlocked state.

In order to prevent the latch hook 130 from falling out of the mounting hole 122, a limiting groove 1341 is provided on one side of the vertical mounting section 134 far away from the locking structure in this embodiment, the limiting groove 1341 extends along the length direction of the vertical mounting section 134, a limiting pin 190 is threaded in the limiting groove 1341, and two ends of the limiting pin 190 are fixed on the upper lock body 120. Through the effect of the limiting pin 190 penetrating through the limiting groove 1341, the vertical displacement of the vertical mounting section 134 can be limited, the latch hook 130 can be prevented from falling, and the structure is simple, stable and reliable.

The electronic padlock in this embodiment further includes an electronic circuit board 160, and the electronic circuit board 160 is mounted in the positioning cavity 200 on the lock body assembly, and the power mechanism 141 is electrically connected to the electronic circuit board 160, so as to supply power to the power mechanism 141.

In actual use, the electronic circuit board 160 in this embodiment is a passive circuit board without a battery, and is powered by an external structure to realize the unlocking and locking functions of the electronic padlock, so that the maintenance cost of the electronic padlock in this embodiment can be greatly reduced.

The electronic padlock also includes a hall element (not shown) mounted on the electronic circuit board 160, and a magnetic steel 180; the magnetic steel 180 is mounted on the shackle 130 to facilitate detection of the status of the electronic padlock.

The bottom of the lower lock body 150 in this embodiment is provided with a computer key interface 151, the computer key interface 151 is of a closed structure, dust and the like can be prevented from entering the padlock, and power supply is realized by adopting a wireless power supply mode with a computer key, so that compared with the case of metal contact power supply, the computer key interface 151 of the invention is applied to the industrial field or in a severe environment, and can ensure the reliability of power supply, in particular, when the computer key is connected to the computer key interface 151, the electronic circuit board 160 is powered on to drive the power mechanism 141 to rotate, thereby realizing unlocking action.

The unlocking principle and the locking principle of the electronic padlock in the embodiment are specifically described according to the structure as follows:

unlocking principle:

after the computer key is inserted and the identity of the electronic padlock is identified, the computer key supplies power to the electronic circuit board 160 after the identity passes, the electronic circuit board 160 supplies power to the power mechanism 141 to drive the driving gear 142 to rotate, the driving gear 142 is connected with the rack part 1431 to drive the clutch part 143 to rotate, so that the protruding part 1432 rotates until the locking groove 131 is separated, and at the moment, the lock hook 130 pops up to an unlocking state under the action of the spring force of the elastic element 170. The clutch member 143 moves along the limiting groove 121 in a direction away from the driving gear 142 under the spring force of the torsion spring 145 until reaching the separation position, the driving gear 142 is disconnected from the rack portion 1431, the driving gear 142 idles, the clutch member 143 remains motionless, and the clutch member 143 abuts against the side wall of the lock hook 130 under the action of the torsion spring 145, so that unlocking is completed.

Locking principle:

when the latch hook 130 is pressed and the protruding part 1432 and the abdication groove 132 are on the same height surface, the protruding part 1432 rotates reversely under the action of the restoring force of the torsion spring 145 and enters the abdication groove 132; at this time, the latch hook 130 is manually released, the latch hook 130 moves upwards under the spring force of the elastic element 170, the clutch member 143 moves toward the direction approaching the driving gear 142 against the force of the torsion spring 145 when being pressed by the inclined surface connecting section 133 until reaching the coupling position, and at this time, the protruding portion 1432 is clamped in the locking groove 131 to complete locking.

According to another aspect of the present invention, there is provided a computer key for unlocking the electronic padlock of the above embodiment.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

(1) The structure is simple and reliable, and the operation is convenient;

(2) The locking operation can be completed by pressing the lock hook without using a key;

(3) The motor cannot generate the phenomenon of locked rotor, and the motor control mode is simple;

(4) The risk that knocking or strong magnetic unlocking is easy to occur when a solenoid is adopted for locking is overcome;

(5) The electronic padlock has no built-in battery, and is powered by a computer key, so that the maintenance is simple and reliable.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be capable of being practiced otherwise than as specifically illustrated and described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electronic padlock, comprising:

the lock comprises a main body, wherein a mounting cavity and a lock hole (113) are formed in the main body, the main body comprises a lock shell (110) and a lock body assembly, the mounting cavity is formed in the lock shell (110), and the lock body assembly is mounted in the mounting cavity;

the lock hook assembly comprises a lock hook (130), the lock hook (130) is arranged on the lock body assembly and extends out of the lock shell (110), the lock hook (130) is provided with a locking structure and a hooking end positioned at the end part of the lock hook (130), and the hooking end is provided with a locking state hooked in the lock hole (113) and an unlocking state separated from the lock hole (113);

the locking assembly is mounted on the lock body assembly and comprises a driving mechanism, a clutch piece (143) and a torsion assembly, wherein the driving mechanism is in driving connection with the clutch piece (143), and in the locking state, the clutch piece (143) is in matched connection with the locking structure; in the unlocked state, the clutch (143) is disconnected from the locking structure; the torsion assembly is arranged on the clutch piece (143), and the clutch piece (143) can be separated from the driving mechanism under the action of torsion force of the torsion assembly.

2. The electronic padlock according to claim 1, wherein said clutch (143) comprises a rack portion (1431), said driving mechanism comprising:

a power mechanism (141);

and a drive gear (142), the drive gear (142) being mounted on the power mechanism (141) and rotated by the power mechanism (141), the drive gear (142) being for meshing with the rack portion (1431).

3. The electronic padlock according to claim 2, wherein the clutch member (143) further comprises a protrusion (1432), the protrusion (1432) having a first position cooperating with the locking structure to lock the shackle (130) and a second position disengaged from the locking structure to unlock the shackle (130).

4. The electronic padlock according to claim 1, characterized in that the lock body assembly is provided with a limit slot (121), said limit slot (121) extending in the direction from the driving mechanism to the clutch member (143);

the torsion assembly includes:

the rotating shaft (144), the rotating shaft (144) is movably arranged in the limiting groove (121), and the clutch piece (143) is fixed on the rotating shaft (144);

the torsion spring (145) is sleeved on the rotating shaft (144), the first end of the torsion spring (145) abuts against the lock body assembly, and the second end of the torsion spring (145) abuts against the clutch piece (143);

wherein, actuating mechanism drive separation and reunion piece (143) rotate, make separation and reunion piece (143) break away from when locking structure, latch hook (130) are followed the locking state switches over to the unblock state, and in this process, torsional spring (145) are along with the storage elastic potential energy of pivot (144), when separation and reunion piece (143) break away from behind the locking structure, torsional spring (145) release elastic potential energy, promote separation and reunion piece (143) are followed spacing groove (121) are kept away from the direction motion of actuating mechanism, until separation and reunion piece (143) with actuating mechanism separates.

5. The electronic padlock according to claim 1, wherein the locking structure comprises a return portion, which is forced against the clutch member (143) to restore the clutch member (143) to the drive mechanism.

6. The electronic padlock according to claim 5, wherein the locking structure comprises a locking groove (131) and a yielding groove (132), wherein the locking groove (131) and the yielding groove (132) are both arranged on the side wall of the shackle (130), the locking groove (131) has a depth smaller than the yielding groove (132), the locking groove (131) is positioned at the bottom of the yielding groove (132), and the resetting part is a bevel connection section (133) positioned between the locking groove (131) and the yielding groove (132);

in the process that the lock hook (130) is switched from the unlocking state to the locking state under the action of external force, when the locking structure and the clutch piece (143) are positioned in the same plane, the clutch piece (143) slides into the yielding groove (132) under the action of the torsion force of the torsion assembly, at the moment, the external force is applied to the lock hook (130) so that the clutch piece (143) slides into the locking groove (131) along the inclined surface connecting section (133), the clutch piece (143) can move towards the direction close to the driving mechanism to be in driving connection with the driving mechanism, and the lock hook (130) is switched to the locking state.

7. The electronic padlock according to claim 2, wherein the rack portion (1431) comprises a circular arc rack, the torsion assembly comprises a rotation shaft (144), the centre of the circular arc rack being located on the axis of the rotation shaft (144).

8. An electronic padlock according to claim 3, wherein the extension (1432) is an elongated structure, the torsion assembly comprising a rotation axis (144), the elongated structure being perpendicular to the rotation axis (144).

9. The electronic padlock according to claim 6, wherein the lock body assembly is provided with a mounting hole (122), and the lock housing (110) is provided with a relief hole (112) corresponding to the mounting hole (122);

the latch hook assembly further comprises an elastic element (170), the elastic element (170) is mounted at the bottom of the mounting hole (122), the bottom end of the latch hook (130) is pressed on the elastic element (170), and the elastic element (170) applies upward elastic force to the latch hook (130) to enable the clutch piece (143) to be connected with the driving mechanism in the process that the latch hook (130) is switched from the unlocking state to the locking state.

10. The electronic padlock of any one of claims 1 to 9, further comprising:

an electronic circuit board (160), the electronic circuit board (160) being mounted on the lock body assembly, the drive mechanism being electrically connected to the electronic circuit board (160);

a hall element mounted on the electronic circuit board (160);

and the magnetic steel (180) is arranged on the lock hook (130).