Anti-knocking electronic padlock

Abstract

The invention provides an anti-knocking electronic padlock. The electronic padlock comprises an upper lock body, a lower lock body, a locking pin, a locking pin spring, a motor, a driving wheel and an anti-knocking assembly. The locking pin is movably installed on the upper lock body in the first direction, the locking pin is provided with a locking position extending out of the upper lock body and an unlocking position retracting into the upper lock body, the locking pin is provided with a first groove, and the locking pin spring is connected with the upper lock body and the locking pin. The anti-knocking assembly is provided with a first position for preventing the locking pin from retracting to the upper lock body and a second position for allowing the locking pin to retract to the upper lock body. The motor is connected with the driving wheel, the driving wheel comprises a first crank pin, the first crank pin is located in the first groove, and the driving wheel is connected with the anti-knocking assembly. During locking, the motor drives the driving wheel to rotate in the forward direction, the locking pin spring firstly drives the locking pin to move from the unlocking position to the locking position, and then the anti-knocking assembly moves from the second position to the first position. The safety of the electronic padlock can be improved.

Description

Technical Field

[0001] This application relates to the field of lock technology, and more specifically, to an anti-knock electronic padlock. Background Technology

[0002] Padlocks, as a common traditional lock, are widely used in daily life and industrial applications. Electronic padlocks, in particular, are favored by many because they are convenient to use and do not require carrying extra keys. Electronic padlocks usually also have a self-locking function, which means that after unlocking, there is no need to send a locking command. To lock, simply press the hook back to its original position, so that the hook groove engages with the locking pin to lock the padlock.

[0003] Figure 1 A schematic diagram of the locked state of an electronic padlock provided as background information for this application. Figure 2 A schematic diagram illustrating the unlocked state of an electronic padlock, provided as background information for this application. Figure 3 This is a schematic diagram of an electronic padlock before self-locking, provided as background technology for this application. The self-locking process of the electronic padlock 1 is as follows: When switching from the locked state to the unlocked state, the first crank pin 51 is located in the first groove 32 of the locking pin 30 and contacts the wall of the first groove 32 away from the lock hook 80. The drive wheel 50 drives the first crank pin 51 to rotate half a revolution in the positive Z direction, thereby moving the locking pin 30 from the locked position to the unlocked position along the first direction X. The locking pin 30 separates from the lock hook groove 82 of the lock hook 80, achieving unlocking (see reference). Figure 1 and Figure 2 At this time, the drive wheel 50 drives the first crank pin 51 to continue rotating half a revolution in the positive Z direction. At this time, the first crank pin 51 contacts the wall of the first groove 32 near the locking hook 80 (refer to...). Figure 3 When switching from the unlocked state to the locked state, pressing the lock hook 80 causes the locking pin 30 to engage with the lock hook groove 82 of the lock hook 80. The locking pin 30 moves closer to the lock hook 80 along the first direction X, causing the first crank pin 51 to contact the wall of the first groove 32 away from the lock hook 80 (see reference). Figure 1 The stroke in which the first crank pin 51 moves within the first groove 32 is the play stroke.

[0004] Because of the deflection limit, when the electronic padlock is struck in the first direction, the locking pin in the locked state can easily move away from the hook in the first direction, thus causing the electronic padlock to unlock under impact, resulting in poor security.

[0005] Therefore, improving the security of electronic padlocks is a technical problem that urgently needs to be solved. Summary of the Invention

[0006] This application provides an anti-knock electronic padlock, which can help improve the security of electronic padlocks.

[0007] This application is achieved through the following technical solution: This application provides an anti-knock electronic padlock, including an upper lock body, a lower lock body, a locking pin, a locking pin spring, a motor, a drive wheel, and an anti-knock assembly. The locking pin is movably mounted on the upper lock body in a first direction, and has a locked position extending out of the upper lock body and an unlocked position retracted from the upper lock body. The locking pin has a first groove. One end of the locking pin spring is connected to the upper lock body, and the other end is connected to the locking pin. The motor, drive wheel, and anti-knock assembly are all mounted on the lower lock body, which is connected to the upper lock body. The anti-knock assembly has a first position that prevents the locking pin from retracting into the upper lock body and a second position that allows the locking pin to retract into the upper lock body. The motor is connected to the drive wheel, which includes a first crank pin located within the first groove. The drive wheel is connected to the anti-knock assembly. During unlocking, the motor drives the drive wheel to rotate forward. The drive wheel first moves the anti-knock assembly from the first position to the second position, and then the first crank pin moves the locking pin from the locked position to the unlocked position. When locked, the motor drives the drive wheel to rotate in the forward direction, and the locking pin spring first drives the locking pin to move from the unlocked position to the locked position. Then the anti-knock component moves from the second position to the first position.

[0008] The technical solution of this application embodiment uses a motor to drive the drive wheel to rotate forward, thereby moving the anti-knock component from a first position to a second position. The anti-knock component no longer prevents the locking pin from retracting into the locking body, thus achieving unlocking. Simultaneously, the motor drives the drive wheel to continue rotating forward, causing the locking pin spring to reset and extend the locking pin out of the locking body, achieving locking. The anti-knock component moves from the second position to the first position, preventing the locking pin from retracting into the locking body. In the locked state, when the electronic padlock is struck in the first direction, the locking pin tends to move from the locked position to the unlocked position. The anti-knock component, located in the first position preventing the locking pin from retracting into the locking body, prevents the locking pin from moving from the locked position to the unlocked position, reducing the risk of the electronic padlock unlocking due to a strike and improving the security of the electronic padlock.

[0009] In some embodiments, the anti-knock assembly includes a movable block, an anti-knock block, and an anti-knock block spring. One end of the anti-knock block spring is connected to the lower lock body, and the other end is connected to the anti-knock block. The movable block connects the drive wheel and the anti-knock block. During unlocking, the drive wheel, via the movable block, moves the anti-knock block from a first position to a second position. During locking, the anti-knock block spring drives the anti-knock block from the second position to the first position.

[0010] The technical solution of this application embodiment uses a motor to drive the drive wheel to rotate forward, thereby causing the drive wheel to move the anti-knock block from a first position to a second position via a movable block, thus achieving unlocking. Simultaneously, the motor continues to drive the drive wheel to rotate forward, causing the anti-knock block spring to move the anti-knock block from the second position to the first position. The anti-knock block prevents the locking pin from retracting into the locking body, reducing the risk of the electronic padlock being unlocked due to impact, and thus improving the security of the electronic padlock.

[0011] In some embodiments, the movable block is movably mounted on the lower lock body along a first direction, and the anti-knock block is movably mounted on the lower lock body along a second direction. The first direction is perpendicular to the second direction.

[0012] The technical solution of this application embodiment improves the security of the electronic padlock by setting the anti-knock block to be movably installed on the lower lock body along a second direction, allowing the anti-knock block to switch between a first position and a second position. Furthermore, since the first direction is perpendicular to the second direction, compared to moving the anti-knock block along other directions to switch between the first and second positions, moving the anti-knock block along the second direction reduces the size of the electronic padlock in the first direction, saving installation space in that direction.

[0013] In some embodiments, the drive wheel further includes a second crank pin, and the movable block has a second groove. The second crank pin is disposed in the second groove.

[0014] The technical solution of this application embodiment uses a motor to drive the drive wheel to continue rotating in the forward direction, thereby causing the second crank pin to move the anti-knock block from the second position to the first position through the movable block. The anti-knock block prevents the locking pin from retracting into the locking body, thereby preventing the locking pin from moving from the locked position to the unlocked position, reducing the risk of the electronic padlock being unlocked due to being struck, and improving the security of the electronic padlock.

[0015] In some embodiments, the second groove has two opposing second groove sidewalls in a first direction, and the second crank pin abuts against both second groove sidewalls.

[0016] The technical solution of this application embodiment abuts against the two side walls of the second groove that are opposite to each other in the first direction by the second crank pin and the second groove. When the motor drives the drive wheel to rotate, the second crank pin can always drive the movable block to move in the first direction, thereby driving the anti-knock block to switch between the first position and the second position. This allows the locking pin to switch from the locked position to the unlocked position to unlock, while reducing the risk of the electronic padlock being unlocked due to being knocked, which helps to improve the security of the electronic padlock.

[0017] In some embodiments, the movable block has an inclined surface, and the anti-knock block slides in cooperation with the inclined surface.

[0018] The technical solution of this application embodiment allows the anti-knock block to switch between a first position and a second position by sliding the inclined surface of the movable block with the anti-knock block. This enables the locking pin to switch from the locked position to the unlocked position to unlock, while reducing the risk of the electronic padlock being unlocked due to being struck, thus improving the security of the electronic padlock.

[0019] In some embodiments, a plane passing through the rotation axis of the drive wheel and parallel to a first direction is defined as a first reference plane, and a plane passing through the rotation axis of the drive wheel and parallel to a second direction is defined as a second reference plane. When the locking pin is in the locked position, the second crank pin is closer to the first reference plane than the first crank pin, and along the positive rotation direction, the second crank pin passes through the second reference plane faster than the first crank pin.

[0020] In the technical solution of this application embodiment, when the locking pin is in the locked position, by setting the second crank pin to be closer to the first reference plane than the first crank pin and along the positive rotation direction, the second crank pin passes through the second reference plane faster than the first crank pin. This allows the second crank pin to drive the anti-knock block to move through the movable block when the motor drives the drive wheel to rotate, enabling the locking pin to move earlier than the first crank pin. This reduces the risk that the anti-knock block will prevent the locking pin from moving to the unlock position when unlocking, and helps to improve the reliability of the electronic padlock.

[0021] In some embodiments, the electronic padlock further includes a hook with a hook groove. When the locking pin is in the locked position, the locking pin engages with the hook groove. In a first direction, the distance between the anti-knock block and the locking pin is L1, and the length of the contact surface between the locking pin and the hook groove is L2, satisfying: L2 > L1.

[0022] The technical solution of this application embodiment, in the first direction, reduces the risk that the anti-knock block will prevent the locking pin from moving to the unlock position during unlocking by setting the distance between the anti-knock block and the locking pin to L1, thereby improving the reliability of the electronic padlock. Simultaneously, by setting L2 > L1, the risk of the electronic padlock being unlocked due to being struck is reduced, thereby improving the security of the electronic padlock.

[0023] In some embodiments, the electronic padlock further includes a main board and a first micro switch. The first micro switch and a motor are respectively connected to the main board via signals. The movable block is provided with a first switch slot that cooperates with the first micro switch. When unlocking, the first switch slot moves the first micro switch to one side along a first direction, and the main board controls the motor to turn off. When locking, the first switch slot moves the first micro switch to the other side along the first direction, and the main board controls the motor to turn off.

[0024] The technical solution of this application embodiment, by setting a first micro switch to cooperate with the first switch slot of the movable block, enables the first micro switch to turn off the motor after the motor drives the drive wheel to rotate to the correct position during unlocking and locking. This improves the convenience of unlocking and locking, reduces the risk of the drive wheel not rotating to the correct position and thus affecting subsequent use, and improves the reliability of the electronic padlock.

[0025] In some embodiments, the electronic padlock further includes a main board and a second micro switch. The second micro switch is signal-connected to the main board, and the locking pin is provided with a second switch slot that cooperates with the second micro switch. When unlocking, the second switch slot moves the second micro switch to one side along a first direction, and the main board sends a signal to the user that the electronic padlock is in an unlocked state. When locking, the second switch slot moves the second micro switch to the other side along the first direction, and the main board sends a signal to the user that the electronic padlock is in a locked state.

[0026] The technical solution of this application embodiment, by setting the second micro switch to cooperate with the second switch slot of the locking pin, enables the motherboard to send information to the user that the electronic padlock is in an unlocked state after unlocking, and the motherboard to send information to the user that the electronic padlock is in a locked state after locking, so that the user can understand the status of the electronic padlock, which helps to improve the convenience of use and enhance the user experience.

[0027] In some embodiments, in a first direction, the first groove has two first groove sidewalls disposed opposite to each other. In the first direction, the distance between the two first groove sidewalls is L3, the eccentricity of the first crank pin relative to the drive wheel is L4, and the radius of the crank pin is L5, satisfying: L3≥2*(L4+L5).

[0028] The technical solution of this application embodiment reduces the risk of motor stalling when the motor drives the drive wheel to move the first crank pin in the first groove. This is because the size of the first groove in the first direction is too small, which may cause the first crank pin to be unable to rotate one revolution. This is beneficial to improving the reliability of the electronic padlock.

[0029] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A schematic diagram of the locked state of an electronic padlock provided as background for this application; Figure 2 A schematic diagram of the unlocked state of an electronic padlock provided as background information for this application; Figure 3 A schematic diagram of an electronic padlock before self-locking, provided as background technology for this application; Figure 4 Exploded views of the structure of an electronic padlock provided in some embodiments of this application; Figure 5 A schematic diagram of the locking body and locking pin provided in some embodiments of this application; Figure 6 An exploded view of a portion of the structure of an electronic padlock provided in some embodiments of this application; Figure 7 This is a schematic diagram of the structure of the locking pin and the drive wheel in some embodiments of this application; Figure 8 This is a schematic diagram of the structure of an active block provided in some embodiments of this application; Figure 9 This is a schematic diagram of the structure of the locking pin and locking hook engagement provided in some embodiments of this application; Figure 10 Schematic diagram of the structure of the locking pin and the first crank pin in some embodiments of this application; Figure 11 This is a top view showing the engagement of a locking pin and a drive wheel in some embodiments of this application.

[0032] Icons: 1-Electronic padlock; 10-Upper lock body; 20-Lower lock body; 30-Locking pin; 31-Locking pin spring; 32-First groove; 321-First groove sidewall; 33-First switch groove; 40-Motor; 50-Drive wheel; 51-First crank pin; 52-Second crank pin; 60-Moving block; 61-Second groove; 611-Second groove sidewall; 62-Sloping surface; 64-Second switch groove; 70-Anti-knock block; 71-Anti-knock block spring; 80-Lock hook; 81-Lock hook housing; 811-Lock hook hole; 82-Lock hook groove; 821-Contact surface; 90-Main board; 91-First micro switch; 92-Second micro switch; 93-Anti-knock assembly; a-Rotation axis of the drive wheel; b-First reference plane; c-Second reference plane; X-First direction; Y-Second direction; Z-Forward. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0035] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0038] In this application, "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0039] Please refer to Figures 4 to 7 , Figure 4 This is an exploded view of the structure of an electronic padlock provided in some embodiments of this application. Figure 5 This is a schematic diagram of the locking body and locking pin provided in some embodiments of this application. Figure 6 This is an exploded view of a portion of the structure of an electronic padlock provided in some embodiments of this application. Figure 7 This is a schematic diagram illustrating the structure of the locking pin and drive wheel in some embodiments of this application. Embodiments of this application provide an anti-knock electronic padlock 1, which includes an upper lock body 10, a lower lock body 20, a locking pin 30, a locking pin spring 31, a motor 40, a drive wheel 50, and an anti-knock component 93. The locking pin 30 is movably mounted on the upper lock body 10 along a first direction X. The locking pin 30 has a locked position extending out of the upper lock body 10 and an unlocked position retracted from the upper lock body 10. The locking pin 30 has a first groove 32. One end of the locking pin spring 31 is connected to the upper lock body 10, and the other end is connected to the locking pin 30. The motor 40, drive wheel 50, and anti-knock component 93 are all mounted on the lower lock body 20, which is connected to the upper lock body 10. The anti-knock component 93 has a first position that prevents the locking pin 30 from retracting into the upper lock body 10 and a second position that allows the locking pin 30 to retract into the upper lock body 10. The motor 40 is connected to the drive wheel 50, which includes a first crank pin 51 located within a first groove 32. The drive wheel 50 is also connected to the anti-knock assembly 93. During unlocking, the motor 40 drives the drive wheel 50 to rotate clockwise (Z-axis). The drive wheel 50 first moves the anti-knock assembly 93 from a first position to a second position, and then the first crank pin 51 moves the locking pin 30 from a locked position to an unlocked position. During locking, the motor 40 drives the drive wheel 50 to rotate clockwise (Z-axis). The locking pin spring 31 first moves the locking pin 30 from the unlocked position to the locked position, and then the anti-knock assembly 93 moves from the second position to the first position.

[0040] In some embodiments, the first direction X can be represented by the direction indicated by the letter X in the figure.

[0041] In some embodiments, the positive Z direction of rotation of the drive wheel 50 can be represented by the direction indicated by the letter Z in the figure.

[0042] In some embodiments, the locking body 10 may have a receiving cavity, and the locking pin 30 is movably mounted on the locking body 10 along a first direction X, such that the locking pin 30 can extend out of the receiving cavity and retract into the receiving cavity.

[0043] In some embodiments, the electronic padlock 1 further includes a hook 80 and a hook housing 81. The hook housing 81 has a hook hole 811 that communicates with a receiving cavity. The hook 80 is movably disposed within the hook hole 811 and has a hook groove 82. When locked, the locking pin 30 extends out of the receiving cavity along a first direction X, and the end of the locking pin 30 facing away from the receiving cavity engages with the hook groove 82. When unlocked, the locking pin 30 retracts into the receiving cavity along the first direction X, and the locking pin 30 separates from the hook groove 82.

[0044] In some embodiments, the upper locking body 10 and the lower locking body 20 may both be disposed within the lock hook housing 81.

[0045] In some embodiments, the inner wall of the receiving cavity may abut against both sides of the locking pin 30, so that the locking pin 30 can only move in the first direction X, and will not rotate with the first crank pin 51.

[0046] During unlocking, motor 40 drives drive wheel 50 to rotate in the Z-direction. Drive wheel 50 first moves anti-knock component 93, so that anti-knock component 93 no longer prevents locking pin 30 from retracting into lock body 10. That is, anti-knock component 93 moves from the first position to the second position, allowing locking pin 30 to move from the locked position to the unlocked position. Drive wheel 50 then drives first crank pin 51 to rotate in the Z-direction, so that first crank pin 51 abuts against first groove 32, thereby driving locking pin 30 to retract into lock body 10 in the first direction X. That is, locking pin 30 moves from the locked position to the unlocked position, and lock body 10 separates from lock hook groove 82, realizing unlocking. At this time, locking pin spring 31 is compressed.

[0047] When locked, the motor 40 drives the drive wheel 50 to continue rotating in the forward Z direction. The drive wheel 50 first drives the first crank pin 51 to rotate in the forward Z direction, so that the first crank pin 51 rotates to the groove sidewall of the first groove 32 facing the lock hook 80. At this time, the first crank pin 51 no longer abuts against the first groove 32 and moves away from the groove sidewall of the lock hook 80. The locking pin spring 31 returns to its original position, driving the locking pin 30 to extend out of the upper lock body 10 in the first direction X. That is, the locking pin spring 31 drives the locking pin 30 to move from the unlocked position to the locked position, so that the locking pin 30 engages with the lock hook groove 82 of the lock hook 80 to achieve locking. In addition, when locked, the anti-knock component 93 moves from the second position to the first position, so that the anti-knock block 70 prevents the locking pin 30 from retracting into the upper lock body 10.

[0048] It should be noted that when locking, motor 40 can drive drive wheel 50 to rotate half a revolution in the positive Z direction. When unlocking, motor 40 can drive drive wheel 50 to continue rotating half a revolution in the positive Z direction.

[0049] It should be noted that during unlocking, the locking pin 30 moves from the locked position to the unlocked position, and the anti-knock component 93 moves from the first position to the second position; these two actions can also occur simultaneously. Similarly, during locking, the locking pin 30 moves from the unlocked position to the locked position, and the anti-knock component 93 moves from the second position to the first position; these two actions can also occur simultaneously.

[0050] The technical solution of this application embodiment involves driving the drive wheel 50 to rotate forward Z-axis via the motor 40, thereby moving the anti-knock component 93 from the first position to the second position. The anti-knock component 93 no longer prevents the locking pin 30 from retracting into the locking body 10, thus achieving unlocking. Simultaneously, the motor 40 continues to drive the drive wheel 50 to rotate forward Z-axis, causing the locking pin spring 31 to reset and extend the locking pin 30 out of the locking body 10, achieving locking. The anti-knock component 93 moves from the second position to the first position, preventing the locking pin 30 from retracting into the locking body 10. In the locked state, when the electronic padlock 1 is struck in the first direction X, the locking pin 30 tends to move from the locked position to the unlocked position. The anti-knock component 93 is located in the first position, preventing the locking pin 30 from retracting into the locking body 10, thereby preventing the locking pin 30 from moving from the locked position to the unlocked position, reducing the risk of the electronic padlock 1 being unlocked due to a strike, and improving the security of the electronic padlock 1.

[0051] In some embodiments, the anti-knock assembly 93 includes a movable block 60, an anti-knock block 70, and an anti-knock block spring 71. One end of the anti-knock block spring 71 is connected to the lower lock body 20, and the other end is connected to the anti-knock block 70. The movable block 60 connects the drive wheel 50 and the anti-knock block 70. When unlocking, the drive wheel 50 drives the anti-knock block 70 from a first position to a second position via the movable block 60. When locking, the anti-knock block spring 71 drives the anti-knock block 70 from the second position to the first position.

[0052] During unlocking, motor 40 drives drive wheel 50 to rotate in the Z-direction. Drive wheel 50 first moves anti-knock block 70 via movable block 60, so that anti-knock block 70 no longer prevents locking pin 30 from retracting into lock body 10. That is, anti-knock block 70 moves from the first position to the second position, allowing locking pin 30 to move from the locked position to the unlocked position. At this time, anti-knock block spring 71 is compressed. Drive wheel 50 drives first crank pin 51 to rotate in the Z-direction, so that first crank pin 51 abuts against first groove 32, thereby driving locking pin 30 to retract into lock body 10 in the first direction X. That is, locking pin 30 moves from the locked position to the unlocked position, lock body 10 separates from lock hook groove 82, and unlocking is achieved. At this time, locking pin spring 31 is compressed.

[0053] When locked, the motor 40 drives the drive wheel 50 to continue rotating in the forward Z direction. The drive wheel 50 first drives the first crank pin 51 to rotate in the forward Z direction, so that the first crank pin 51 rotates to the groove sidewall of the first groove 32 facing the lock hook 80. At this time, the first crank pin 51 no longer abuts against the first groove 32 and moves away from the groove sidewall of the lock hook 80. The locking pin spring 31 returns to its original position, driving the locking pin 30 to extend out of the upper lock body 10 in the first direction X. That is, the locking pin spring 31 drives the locking pin 30 to move from the unlocked position to the locked position, so that the locking pin 30 engages with the lock hook groove 82 of the lock hook 80 to achieve locking. The drive wheel 50 then drives the movable block 60 to move, so that the anti-knock block 70 can move to the first position. At this time, the anti-knock block spring 71 returns to its original position, driving the anti-knock block 70 to move from the second position to the first position, so that the anti-knock block 70 prevents the locking pin 30 from retracting into the upper lock body 10.

[0054] During self-locking, the motor 40 drives the drive wheel 50 to continue rotating in the forward Z direction. The drive wheel 50 drives the first crank pin 51 to rotate in the forward Z direction, causing the first crank pin 51 to rotate until the first groove 32 faces the groove sidewall of the locking hook 80. At this time, the first crank pin 51 no longer abuts against the first groove 32 and moves away from the groove sidewall of the locking hook 80. The locking hook 80 is not pressed down and abuts against the locking pin 30, preventing the locking pin 30 from moving from the unlocked position to the locked position. At this time, the locking pin spring 31 has a tendency to return to its original position. At the same time, the drive wheel 50 drives the anti-knock block 70 to move through the movable block 60, allowing the anti-knock block 70 to move to the first position. The locking pin 30 does not move to the locked position, and the anti-knock block 70 abuts against the locking pin 30. At this time, the anti-knock block spring 71 has a tendency to return to its original position.

[0055] Pressing the locking hook 80 causes the locking hook groove 82 of the locking hook 80 to align with the locking pin 30 in the first direction X. At this time, the locking pin spring 31 returns to its original position, causing the locking pin 30 to extend out of the upper lock body 10 along the first direction X, thus achieving locking. Simultaneously, the anti-knock block spring 71 returns to its original position, causing the anti-knock block 70 to move from the second position to the first position, preventing the locking pin 30 from retracting into the upper lock body 10.

[0056] The technical solution of this application embodiment uses a motor 40 to drive a drive wheel 50 to rotate in the forward Z direction. This causes the drive wheel 50 to move the anti-knock block 70 from a first position to a second position via a movable block 60, thereby achieving unlocking. Simultaneously, the motor 40 continues to drive the drive wheel 50 to rotate in the forward Z direction, causing the anti-knock block spring 71 to move the anti-knock block 70 from the second position to the first position. The anti-knock block 70 prevents the locking pin 30 from retracting into the locking body 10, reducing the risk of the electronic padlock 1 being unlocked due to impact, thus improving the security of the electronic padlock 1.

[0057] Please refer to Figure 7In some embodiments, the movable block 60 is movably mounted on the lower lock body 20 along a first direction X, and the anti-knock block 70 is movably mounted on the lower lock body 20 along a second direction Y. The first direction X is perpendicular to the second direction Y.

[0058] In some embodiments, the second direction Y can be represented by the direction indicated by the letter Y in the figure.

[0059] In some embodiments, the first direction X may be parallel to the height direction of the electronic padlock 1, the second direction Y may be parallel to the length direction of the electronic padlock 1, and the first direction X and the second direction Y may be perpendicular.

[0060] In some embodiments, the electronic padlock 1 has a certain dimension in the second direction Y to accommodate the motor 40, drive wheel 50, etc. The anti-knock block 70 is configured to be movably mounted on the lower lock body 20 along the second direction Y, so that the movement path of the anti-knock block 70 in the second direction Y shares the space in the second direction Y with the motor 40, drive wheel 50, etc., which helps to save space.

[0061] In some embodiments, the second direction Y can be parallel to the direction of gravity, and the first direction X can be parallel to the horizontal direction. The upper locking body 10 can be located above the lower locking body 20, and the locking hook 80 can be located to the left of the upper locking body 10. When unlocking, the motor 40 drives the drive wheel 50 to rotate in the positive Z direction, and the locking pin 30 rotates in the positive Z direction, abutting against the right sidewall of the groove of the first groove 32 in the first direction X, causing the locking pin 30 to move to the right in the first direction X, so that the locking pin 30 separates from the locking hook groove 82. At this time, the drive wheel 50 drives the movable block 60 to move to the right in the first direction X, and the movable block 60 drives the anti-knock block 70 to move downward in the second direction Y, so that the anti-knock block 70 is located below the locking pin 30, so that the anti-knock block 70 allows the locking pin 30 to retract into the upper locking body 10. When locked, motor 40 drives drive wheel 50 to continue rotating in the positive Z direction. First crank pin 51 rotates until it abuts against the left sidewall of the first groove 32 in the first X direction. Locking pin spring 31 resets and pushes locking pin 30 to move to the left in the first X direction, so that the right sidewall of the first groove 32 abuts against first crank pin 51 in the first X direction. At this time, drive wheel 50 drives movable block 60 to move to the left in the first X direction, providing space for anti-knock block 70 to move upward in the second Y direction. Anti-knock block spring 71 resets and drives anti-knock block 70 to move upward in the second Y direction, so that anti-knock block 70 is located to the right of locking pin 30, so that anti-knock block 70 prevents locking pin 30 from retracting into lock body 10.

[0062] It should be noted that in the top view of the electronic padlock 1, the positive Z direction can be clockwise.

[0063] Similarly, the locking hook 80 can be located on the right side of the upper locking body 10, and the motor 40 can always drive the drive wheel 50 to rotate in the opposite direction. When locked, the anti-knock block 70 is located on the left side of the locking pin 30.

[0064] The technical solution of this application embodiment, by setting the anti-knock block 70 to be movably installed on the lower lock body 20 along the second direction Y, allows the anti-knock block 70 to switch between a first position and a second position, which helps to improve the security of the electronic padlock 1. Simultaneously, since the first direction X is perpendicular to the second direction Y, compared to moving the anti-knock block 70 along other directions to switch between the first and second positions, moving the anti-knock block 70 along the second direction Y helps to reduce the size of the electronic padlock 1 in the first direction X, saving installation space in the first direction X.

[0065] Please refer to Figures 4 to 7 In some embodiments, the drive wheel 50 further includes a second crank pin 52, and the movable block 60 is provided with a second groove 61. The second crank pin 52 is disposed in the second groove 61.

[0066] In some embodiments, during unlocking, the motor 40 drives the drive wheel 50 to rotate in the positive Z direction, the second crank pin 52 drives the movable block 60 to move in the first X direction, and the movable block 60 drives the anti-knock block 70 to move in the second Y direction, so that the anti-knock block 70 moves from the first position to the second position. During locking, the motor 40 drives the drive wheel 50 to continue rotating in the positive Z direction, the second crank pin 52 drives the movable block 60 to move in the first X direction, providing space for the anti-knock block 70 to move in the second Y direction, and the anti-knock block spring 71 resets, driving the anti-knock block 70 to move in the second Y direction, so that the anti-knock block 70 moves from the second position to the first position.

[0067] The technical solution of this application embodiment drives the drive wheel 50 to continue rotating in the forward Z direction via the motor 40, thereby causing the second crank pin 52 to move the anti-knock block 70 from the second position to the first position via the movable block 60. The anti-knock block 70 prevents the locking pin 30 from retracting into the locking body 10, thereby preventing the locking pin 30 from moving from the locked position to the unlocked position, reducing the risk of the electronic padlock 1 being unlocked due to being struck, and improving the security of the electronic padlock 1.

[0068] Please refer to Figures 4 to 7 and refer to Figure 8 , Figure 8 This is a schematic diagram of the structure of an active block provided in some embodiments of this application. In some embodiments, the second groove 61 has two opposing second groove sidewalls 611 in the first direction X, and the second crank pin 52 abuts against both second groove sidewalls 611.

[0069] In some embodiments, in the first direction X, the second crank pin 52 contacts the two second groove walls of the second groove 61 in the first direction X, that is, the second crank pin 52 has no play in the second groove 61, so that when the second crank pin 52 rotates in the positive direction Z, it can always drive the movable block 60 to move in the first direction X, which helps to improve the responsiveness of the movement of the anti-knock block 70.

[0070] It should be noted that the dimensions of the second crank pin 52 and the second groove 61 may have errors in processing. In the first direction X, one end of the second crank pin 52 may have a gap with one end of the second groove 61.

[0071] The technical solution of this application embodiment, by having the second crank pin 52 abut against the two second groove sidewalls 611 that are oppositely arranged in the first direction X, ensures that when the motor 40 drives the drive wheel 50 to rotate, the second crank pin 52 can always drive the movable block 60 to move along the first direction X, thereby driving the anti-knock block 70 to switch between the first position and the second position. This allows the locking pin 30 to switch from the locked position to the unlocked position to unlock, while reducing the risk of the electronic padlock 1 being unlocked due to being knocked, thus improving the security of the electronic padlock 1.

[0072] Please refer to Figures 4 to 8 In some embodiments, the movable block 60 is provided with a ramp 62, and the anti-knock block 70 slides in cooperation with the ramp 62.

[0073] Taking this embodiment as an example: the second direction Y is parallel to the direction of gravity, the first direction X is parallel to the horizontal direction, the upper locking body 10 is located above the lower locking body 20, and the locking hook 80 can be located to the left of the upper locking body 10. The distance between the side of the inclined surface 62 near the locking hook 80 in the first direction X and the locking pin 30 in the second direction Y is greater than the distance between the side of the inclined surface 62 away from the locking hook 80 in the first direction X and the locking pin 30 in the second direction Y. That is, one end of the inclined surface 62 on the left is located below one end of the inclined surface 62 on the right. Along the first direction X from left to right, the inclined surface 62 is inclined upward in the second direction Y.

[0074] During unlocking, motor 40 drives drive wheel 50 to rotate in the positive Z direction. Drive wheel 50 drives movable block 60 to move to the right in the first direction X. Movable block 60 drives anti-knock block 70 to move downward in the second direction Y. Anti-knock block 70 moves from the rightmost end of inclined plane 62 to the leftmost end of inclined plane 62, so that anti-knock block 70 is located below locking pin 30, allowing locking pin 30 to retract into lock body 10. During locking, motor 40 drives drive wheel 50 to continue rotating in the positive Z direction. Drive wheel 50 drives movable block 60 to move to the left in the first direction X, providing space for anti-knock block 70 to move upward in the second direction Y. Anti-knock block spring 71 resets, causing anti-knock block 70 to move upward in the second direction Y, so that anti-knock block 70 moves from the rightmost end of inclined plane 62 to the leftmost end of inclined plane 62, so that anti-knock block 70 is located to the right of locking pin 30, preventing locking pin 30 from retracting into lock body 10.

[0075] Similarly, the locking hook 80 can be located on the right side of the upper locking body 10, and the motor 40 can always drive the drive wheel 50 to rotate in the opposite direction. When locked, the anti-knock block 70 is located on the left side of the locking pin 30. One end of the left side of the inclined plane 62 can be located above the right end of the inclined plane 62, from left to right along the first direction X, and the inclined plane 62 is inclined downward in the second direction Y.

[0076] In some embodiments, the movable block 60 may be provided with a through hole, and the inclined surface 62 is the through hole facing away from the inner wall of the anti-knock block spring 71 in the second direction Y. The anti-knock block 70 may be provided with an abutment post, which passes through the through hole and abuts against the inclined surface 62. When locked, the anti-knock block spring 71 returns to its original position, and the anti-knock block spring 71 drives the anti-knock block 70 to move along the second direction Y toward the locking pin 30, so that the anti-knock block 70 is always in contact with the inclined surface 62.

[0077] The technical solution of this application embodiment allows the anti-knock block 70 to slide and engage with the inclined surface 62 of the movable block 60, enabling the anti-knock block 70 to switch between a first position and a second position. This allows the locking pin 30 to switch from the locked position to the unlocked position to unlock, while reducing the risk of the electronic padlock 1 being unlocked due to being struck, thus improving the security of the electronic padlock 1.

[0078] Please refer to Figures 4 to 7 and refer to Figure 11 , Figure 11This is a top view showing the engagement of a locking pin and a drive wheel according to some embodiments of this application. In some embodiments, a plane passing through the rotation axis a of the drive wheel and parallel to the first direction X is defined as a first reference plane b, and a plane passing through the rotation axis a of the drive wheel and parallel to the second direction Y is defined as a second reference plane c. When the locking pin 30 is in the locked position, the second crank pin 52 is closer to the first reference plane b than the first crank pin 51, and along the positive Z rotation direction, the second crank pin 52 passes through the second reference plane c faster than the first crank pin 51.

[0079] In some embodiments, the first reference plane can be represented by the letter b in the figure, and the second reference plane can be represented by the letter c in the figure.

[0080] Understandably, the first crank pin 51 needs to rotate in the positive Z direction, thereby driving the locking pin 30 to move in the first direction X. At this time, the direction of the driving force of the first crank pin 51 is parallel to the tangential direction when rotating in the positive Z direction, and the driving force of the first crank pin 51 needs to have a component force in the first direction X. Similarly, the second crank pin 52 needs to rotate in the positive Z direction, thereby driving the movable block 60 to move in the first direction X. At this time, the direction of the driving force of the second crank pin 52 is parallel to the tangential direction when rotating in the positive Z direction, and the driving force of the second crank pin 52 needs to have a component force in the first direction X.

[0081] When unlocking, if the locking pin 30 moves before the anti-knock block 70, the anti-knock block 70 will prevent the locking pin 30 from retracting into the locking body 10, thereby blocking the rotation of the first crank pin 51, which in turn prevents the drive wheel 50 from rotating, and also prevents the second crank pin 52 from rotating, thus causing the electronic padlock 1 to fail to unlock or become stuck.

[0082] To prevent the locking pin 30 from moving before the anti-knock block 70 during unlocking, the second crank pin 52 needs to drive the anti-knock block 70 to move earlier than the first crank pin 51 drives the locking pin 30. The first reference plane b and the second reference plane c intersect, forming four regions. When the locking pin 30 is in the locked position, the first crank pin 51 and the second crank pin 52 can be located in the same region. The second crank pin 52 is closer to the first reference plane b than the first crank pin 51 and rotates in the positive Z direction. The second crank pin 52 passes through the second reference plane c faster than the first crank pin 51. Therefore, during unlocking, when the second crank pin 52 rotates in the positive Z direction, the driving force of the second crank pin 52 has a component force in the first direction X that drives the movable block 60 to move away from the lock hook 80 in the first direction X earlier. Similarly, during locking, the driving force of the second crank pin 52 has a component force in the first direction X that drives the movable block 60 to move closer to the lock hook 80 in the first direction X earlier.

[0083] In the technical solution of this application embodiment, when the locking pin 30 is in the locked position, by setting the second crank pin 52 to be closer to the first reference plane b than the first crank pin 51 and along the positive Z rotation direction, the second crank pin 52 passes through the second reference plane c faster than the first crank pin 51. This allows the second crank pin 52 to drive the anti-knock block 70 to move via the movable block 60 when the motor 40 drives the drive wheel 50 to rotate, enabling the locking pin 30 to move earlier than the first crank pin 51. This reduces the risk that the anti-knock block 70 will prevent the locking pin 30 from moving to the unlock position during unlocking, thus improving the reliability of the electronic padlock 1.

[0084] Please refer to Figures 4 to 7 and refer to Figure 9 , Figure 9 This is a schematic diagram illustrating the structure of the locking pin and the locking hook engagement provided in some embodiments of this application. In some embodiments, the electronic padlock 1 further includes a locking hook 80, which has a locking hook groove 82. When the locking pin 30 is in the locked position, the locking pin 30 engages with the locking hook groove 82. In the first direction X, the distance between the anti-knock block 70 and the locking pin 30 is L1, and the length of the contact surface 821 between the locking pin 30 and the locking hook groove 82 is L2, satisfying: L2 > L1.

[0085] When unlocking, if the locking pin 30 moves before the anti-knock block 70, the anti-knock block 70 will prevent the locking pin 30 from retracting into the locking body 10, thereby blocking the rotation of the first crank pin 51, which in turn prevents the drive wheel 50 from rotating, and also prevents the second crank pin 52 from rotating, thus causing the electronic padlock 1 to fail to unlock or become stuck.

[0086] To reduce the risk of electronic padlock 1 failing to unlock or getting stuck, in some embodiments, there may be a gap between the anti-knock block 70 and the locking pin 30, so that even if the locking pin 30 moves earlier than the anti-knock block 70, the anti-knock block 70 will not block the movement of the locking pin 30.

[0087] However, to reduce the risk of the electronic padlock 1 being unlocked due to being struck, in some embodiments, the distance between the anti-knock block 70 and the locking pin 30 is L1, and the length of the contact surface 821 between the locking pin 30 and the lock hook groove 82 is L2, satisfying: L2 > L1. When the electronic padlock 1 is struck, the locking pin 30 moves closer to the anti-knock block 70 along the first direction X, causing the locking pin 30 to abut against the anti-knock block 70, preventing the locking pin 30 from continuing to move from the locked position to the unlocked position. Since L2 > L1, when the locking pin 30 abuts against the anti-knock block 70, the locking pin 30 still engages with the lock hook groove 82.

[0088] In some embodiments, the contact surface 821 between the locking pin 30 and the locking hook groove 82 can be the portion of the locking pin 30 that abuts against the locking hook groove 82 in the second direction Y.

[0089] The technical solution of this application embodiment, in the first direction X, by setting the distance between the anti-knock block 70 and the locking pin 30 to L1, reduces the risk that the anti-knock block 70 will prevent the locking pin 30 from moving to the unlock position during unlocking, which is beneficial to improving the reliability of the electronic padlock 1. At the same time, by setting L2 > L1, the risk of the electronic padlock 1 being unlocked due to being knocked is reduced, which is beneficial to improving the security of the electronic padlock 1.

[0090] Please refer to Figures 4 to 7 In some embodiments, the electronic padlock 1 further includes a main board 90 and a first micro switch 91. The first micro switch 91 and the motor 40 are respectively connected to the main board 90 via signals. The movable block 60 is provided with a first switch slot 33 that cooperates with the first micro switch 91. When unlocking, the first switch slot 33 drives the first micro switch 91 to move to one side along the first direction X, and the main board 90 controls the motor 40 to turn off. When locking, the first switch slot 33 drives the first micro switch 91 to move to the other side along the first direction X, and the main board 90 controls the motor 40 to turn off.

[0091] In some embodiments, the motherboard 90 and the first micro switch 91 can be connected by a cable, WiFi, Bluetooth, or other means.

[0092] In some embodiments, the motherboard 90 and the motor 40 can be connected via cable, WiFi, Bluetooth, or other means.

[0093] In some embodiments, the way in which the motherboard 90 is connected to the first micro switch 91 and the way in which the motherboard 90 is connected to the motor 40 can be the same or different.

[0094] In some embodiments, the motherboard 90 can receive user instructions to control the motor 40 to drive the drive wheel 50, thereby causing the drive wheel 50 to rotate the first crank pin 51 and the second crank pin 52 in the positive Z direction. This enables the first crank pin 51 to drive the locking pin 30 to retract the locking body 10 in the first X direction, thereby unlocking the lock. It also enables the second crank pin 52 to drive the anti-knock block 70 to move from the first position to the second position via the movable block 60.

[0095] In some embodiments, the first switch slot 33 may be disposed on the side of the movable block 60 away from the second groove 61, that is, the first switch slot 33 and the second groove 61 are respectively disposed on opposite sides of the movable block 60, and the first switch slot 33 cooperates with the first micro switch 91.

[0096] In some embodiments, the first switch slot 33 can be integrally formed with the movable block 60, or it can be formed by milling.

[0097] In some embodiments, during unlocking, the motor 40 drives the drive wheel 50 to rotate half a revolution in the forward Z direction, thereby causing the second crank pin 52 to rotate half a revolution in the forward Z direction. This causes the second crank pin 52 to move the movable block 60 along the first direction X, moving the anti-knock block 70 from the first position to the second position. At this time, after the first switch slot 33 moves along the first direction X with the movable block 60, the slot wall of the first switch slot 33 moves the first micro switch 91 to one side in the first direction X. After receiving the position signal of the first micro switch 91, the main board 90 controls the motor 40 to turn off, reducing the risk of damage to the first crank pin 51 or the locking pin 30 caused by the motor 40 driving the drive wheel 50 to rotate more than half a revolution.

[0098] When locked, motor 40 drives drive wheel 50 to continue rotating in the positive Z direction, thereby causing second crank pin 52 to rotate half a revolution in the positive Z direction. This causes second crank pin 52 to drive movable block 60 to move in the first direction X, causing anti-knock block 70 to move from the second position to the first position. At this time, after first switch slot 33 moves with movable block 60 in the first direction X, the slot wall of first switch slot 33 moves first micro switch 91 to the other side in the first direction X. After receiving the position signal of first micro switch 91, main board 90 controls motor 40 to turn off, reducing the risk of second crank pin 52 or movable block 60 being damaged due to motor 40 driving drive wheel 50 to rotate more than half a revolution.

[0099] The technical solution of this application embodiment, by setting the first micro switch 91 to cooperate with the first switch slot 33 of the movable block 60, enables the first micro switch 91 to turn off the motor 40 after the motor 40 drives the drive wheel 50 to rotate into position during unlocking and locking. This improves the convenience of unlocking and locking, reduces the risk of the drive wheel 50 not rotating into position and thus affecting subsequent use, and improves the reliability of the electronic padlock 1.

[0100] Please refer to Figures 4 to 7 In some embodiments, the electronic padlock 1 further includes a main board 90 and a second micro switch 92. The second micro switch 92 is signal-connected to the main board 90, and the locking pin 30 is provided with a second switch slot 64 that cooperates with the second micro switch 92. When unlocking, the second switch slot 64 moves the second micro switch 92 to one side along the first direction X, and the main board 90 sends a signal to the user that the electronic padlock 1 is in an unlocked state. When locking, the second switch slot 64 moves the second micro switch 92 to the other side along the first direction X, and the main board 90 sends a signal to the user that the electronic padlock 1 is in a locked state.

[0101] In some embodiments, the motherboard 90 and the second micro switch 92 can be connected by a cable, WiFi, Bluetooth, or other means.

[0102] In some embodiments, the motherboard 90 may have the function of sending information, which can send the status of the electronic padlock 1 to the user's receiving end (such as a mobile phone, computer, etc.), and can also send the status of the electronic padlock 1 to the external structure of the electronic padlock 1 (such as a display screen or a voice broadcast device). For example, after unlocking or locking is completed, the status of the electronic padlock 1 can be displayed on the display screen of the electronic padlock 1, or the status of the electronic padlock 1 can be announced by the voice broadcast device.

[0103] In some embodiments, the second switch slot 64 can be integrally formed with the locking pin 30, or it can be formed by milling.

[0104] When unlocking, the motor 40 drives the drive wheel 50 to rotate in the positive Z direction, which causes the first crank pin 51 to drive the locking pin 30 to move in the first direction X until the locking pin 30 retracts into the lock body 10. At this time, the second switch slot 64 moves with the locking pin 30 in the first direction X, so that the side wall of the second switch slot 64 moves the second micro switch 92 to one side in the first direction X. After receiving the position signal of the second micro switch 92, the main board 90 sends the information that the electronic padlock 1 is in the unlocked state to the user.

[0105] When locked, the motor 40 continues to drive the drive wheel 50 to rotate in the positive Z direction. The first crank pin 51 rotates to the side of the first groove 32 near the lock hook 80. The locking pin spring 31 resets and drives the locking pin 30 to move in the first direction X until it extends out of the upper lock body 10 and engages with the lock hook groove 82. At this time, the second switch groove 64 moves along the first direction X with the locking pin 30, so that the groove wall of the second switch groove 64 moves the second micro switch 92 to the other side in the first direction X. After receiving the position signal of the second micro switch 92, the main board 90 sends the information that the electronic padlock 1 is in the locked state to the user.

[0106] The technical solution of this application embodiment, by setting the second micro switch 92 to cooperate with the second switch slot 64 of the locking pin 30, enables the main board 90 to send information to the user that the electronic padlock 1 is in an unlocked state after unlocking, and the main board 90 to send information to the user that the electronic padlock 1 is in a locked state after locking, so that the user can understand the status of the electronic padlock 1, which helps to improve the convenience of use and enhance the user experience.

[0107] Please refer to Figures 4 to 7 and refer to Figure 10 , Figure 10This is a schematic diagram illustrating the structure of the locking pin and the first crank pin engagement provided in some embodiments of this application. In some embodiments, in the first direction X, the first groove 32 has two opposing first groove sidewalls 321. In the first direction X, the distance between the two first groove sidewalls 321 is L3, the eccentricity of the first crank pin 51 relative to the drive wheel 50 is L4, and the radius of the crank pin is L5, satisfying: L3≥2*(L4+L5).

[0108] To reduce the risk of motor 40 stalling and potentially damaging itself when the drive wheel 50 drives the first crank pin 51 to continue rotating forward Z for half a revolution after unlocking, the first crank pin 51 is restricted by the first groove 32. In some embodiments, L3 is set to ≥ 2*(L4+L5). Taking L3=2*(L4+L5) as an example, when locking, the first crank pin 51 continues to rotate forward Z for half a revolution, rotating from the first groove 32 away from the first groove sidewall 321 of the lock hook 80 to the first groove sidewall 321 facing the lock hook 80.

[0109] The technical solution of this application embodiment reduces the risk of motor 40 stalling when motor 40 drives drive wheel 50 to drive first crank pin 51 to move in first groove 32. This is because the size of first groove 32 in the first direction X is too small, which causes first crank pin 51 to be unable to rotate one revolution. This is beneficial to improving the reliability of electronic padlock 1.

[0110] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A knock-resistant electronic padlock, characterized in that, It includes an upper lock body, a lower lock body, a locking pin, a locking pin spring, a motor, a drive wheel, and an anti-knock assembly; The locking pin is movably mounted on the upper lock body along a first direction. The locking pin has a locking position extending out of the upper lock body and an unlocking position retracted into the upper lock body. The locking pin is provided with a first groove. One end of the locking pin spring is connected to the upper lock body, and the other end is connected to the locking pin. The motor, the drive wheel, and the anti-knock assembly are all mounted on the lower lock body, and the lower lock body is connected to the upper lock body; The anti-knock component has a first position that prevents the locking pin from retracting into the locking body and a second position that allows the locking pin to retract into the locking body; The motor is connected to the drive wheel, the drive wheel includes a first crank pin located in the first groove, and the drive wheel is connected to the anti-knock component; when unlocking, the motor drives the drive wheel to rotate in the forward direction, the drive wheel first moves the anti-knock component from the first position to the second position, and the first crank pin then moves the locking pin from the locked position to the unlocked position; When locked, the motor drives the drive wheel to rotate in the forward direction, the locking pin spring first drives the locking pin to move from the unlocked position to the locked position, and the anti-knock component then moves from the second position to the first position.

2. The electronic padlock according to claim 1, characterized in that, The anti-knock assembly includes a movable block, an anti-knock block, and an anti-knock block spring. One end of the anti-knock block spring is connected to the lower lock body, and the other end is connected to the anti-knock block. The movable block connects the drive wheel and the anti-knock block. When unlocking, the drive wheel drives the anti-knock block to move from the first position to the second position via the movable block; When locked, the anti-knock block spring drives the anti-knock block to move from the second position to the first position.

3. The electronic padlock according to claim 2, characterized in that, The movable block is movably mounted on the lower lock body along the first direction, and the anti-knock block is movably mounted on the lower lock body along the second direction; The first direction is perpendicular to the second direction.

4. The electronic padlock according to claim 2, characterized in that, The drive wheel also includes a second crank pin, and the movable block is provided with a second groove; The second crank pin is disposed in the second groove.

5. The electronic padlock according to claim 4, characterized in that, The second groove has two opposing second groove sidewalls in the first direction, and the second crank pin abuts against both second groove sidewalls.

6. The electronic padlock according to claim 2, characterized in that, The movable block has an inclined surface, and the anti-knock block slides in conjunction with the inclined surface.

7. The electronic padlock according to claim 4, characterized in that, A plane passing through the rotation axis of the drive wheel and parallel to the first direction is defined as the first reference plane, and a plane passing through the rotation axis of the drive wheel and parallel to the second direction is defined as the second reference plane. When the locking pin is in the locked position, the second crank pin is closer to the first reference plane than the first crank pin, and in the positive rotation direction, the second crank pin passes through the second reference plane faster than the first crank pin.

8. The electronic padlock according to claim 2, characterized in that, The electronic padlock also includes a hook, which has a hook groove; When the locking pin is in the locked position, the locking pin cooperates with the lock hook groove. In the first direction, the distance between the anti-knock block and the locking pin is L1, and the length of the contact surface between the locking pin and the lock hook groove is L2, satisfying: L2 > L1.

9. The electronic padlock according to claim 2, characterized in that, The electronic padlock also includes a main board and a first micro switch. The first micro switch and the motor are respectively connected to the main board via signals. The movable block is provided with a first switch slot that cooperates with the first micro switch. When unlocking, the first switch slot drives the first micro switch to move to one side along the first direction, and the main board controls the motor to turn off; When locked, the first switch slot drives the first micro switch to move to the other side along the first direction, and the main board controls the motor to turn off.

10. The electronic padlock according to claim 1, characterized in that, The electronic padlock also includes a main board and a second micro switch. The second micro switch is signal-connected to the main board, and the locking pin is provided with a second switch slot that cooperates with the second micro switch. When unlocking, the second switch slot drives the second micro switch to move to one side along the first direction, and the motherboard sends a message to the user that the electronic padlock is in an unlocked state; When locked, the second switch slot drives the second micro switch to move to the other side along the first direction, and the main board sends a message to the user that the electronic padlock is in the locked state.

11. The electronic padlock according to claim 1, characterized in that, In the first direction, the first groove has two first groove sidewalls disposed opposite to each other; In the first direction, the distance between the two first groove sidewalls is L3, the eccentricity of the first crank pin relative to the drive wheel is L4, and the radius of the crank pin is L5, satisfying: L3≥2*(L4+L5).

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