A torsion spring type anti-kicking electronic padlock

Abstract

The application provides a torsion spring type anti-knock electronic padlock. The electronic padlock comprises a locking body, a locking pin, a driven wheel, a driving wheel, a motor and a torsion spring. The locking pin is movably arranged in the locking body in a first direction, and has a locking position extending out of the locking body and an unlocking position retracting into the locking body. The locking pin is provided with a groove, the driven wheel comprises a crank pin located in the groove and in contact with two groove walls in the first direction. The motor is connected with the driving wheel, and two ends of the torsion spring are connected with the driving wheel and the driven wheel respectively. When unlocking, the motor drives the driving wheel to rotate in a forward direction, the driving wheel abuts against the driven wheel and drives the driven wheel to rotate in the forward direction, and the crank pin drives the locking pin to move from the locking position to the unlocking position. When locking, the motor drives the driving wheel to rotate in a reverse direction, the driving wheel drives the driven wheel to rotate in the reverse direction through the torsion spring, and the crank pin drives the locking pin to move from the unlocking position to the locking position. The application is beneficial to improving the safety of the electronic padlock.

Description

Technical Field

[0001] This application relates to the field of lock technology, and more specifically, to a torsion spring type 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 part of the background technology of 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 crank pin 31 is located in the groove 21 of the locking pin 20 and contacts the wall of the groove 21 away from the lock hook 90. ​​The driven wheel 30 drives the crank pin 31 to rotate half a revolution in the forward direction, thereby moving the locking pin 20 from the locked position to the unlocked position along the first direction X. The locking pin 20 separates from the lock hook groove 92 of the lock hook 90, achieving unlocking (see reference). Figure 1 and Figure 2 At this time, the driven wheel 30 drives the crank pin 31 to continue rotating half a revolution in the forward direction. At this time, the crank pin 31 contacts the wall of the groove 21 near the locking hook 90 (see reference). Figure 3 When switching from the locked state to the unlocked state, pressing the lock hook 90 causes the locking pin 20 to engage with the lock hook groove 92 of the lock hook 90. ​​The locking pin 20 moves closer to the lock hook 90 along the first direction X, causing the crank pin 31 to contact the groove 21 away from the wall of the lock hook 90 (see reference). Figure 1 The travel of the crank pin 31 in the groove 21 is the play stroke.

[0004] When an electronic padlock is struck in the first direction, the locking pin in the locked state is easily moved away from the hook in the first direction, which can cause the electronic padlock to be unlocked when struck, resulting in poor security.

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

[0006] This application provides an electronic padlock that can improve the security of electronic padlocks.

[0007] This application is achieved through the following technical solution:

[0008] This application provides a torsion spring-type anti-knock electronic padlock, including a lock hook, a lock body, a locking pin, a driven wheel, a drive wheel, a motor, and a torsion spring. The locking pin is movably mounted on the lock body along a first direction, and has a locked position extending out of the lock body and an unlocked position retracted into the lock body. The locking pin has a groove, and the driven wheel includes a crank pin located within the groove and contacting two groove walls in the first direction. The motor is connected to the drive wheel, and the drive wheel and driven wheel are coaxially arranged. One end of the torsion spring is connected to the driven wheel, and the other end is connected to the drive wheel. The lock hook has a lock hook groove, and has a first position where the lock hook groove engages with the locking pin and a second position where the lock hook groove is separated from the locking pin. When unlocking, the motor drives the drive wheel to rotate forward, the drive wheel abuts against the driven wheel and drives the driven wheel to rotate forward, the crank pin moves the locking pin from the locked position to the unlocked position, and the lock hook moves from the first position to the second position. When locked, the motor drives the drive wheel to rotate in the opposite direction away from the driven wheel, the torsion spring stores force, and the locking pin tends to move to the locked position. When the locking hook moves from the second position to the first position, the torsion spring releases torque and drives the driven wheel to rotate in the opposite direction, so that the crank pin drives the locking pin to move to the locked position.

[0009] The technical solution of this application embodiment uses a motor to drive the drive wheel, causing the driven wheel to rotate forward. This causes the crank pin to move the locking pin, moving the lock hook from a first position to a second position, thus unlocking the lock. Simultaneously, the motor drives the drive wheel to rotate in the opposite direction, causing the drive wheel and driven wheel to separate, thus deforming the torsion spring. The lock hook then moves from the second position to the first position, and the torsion spring resets, causing the driven wheel to rotate in the opposite direction. This causes the crank pin to move the locking pin, achieving the self-locking function of the electronic padlock and improving the convenience of locking. When the electronic padlock is struck in the first direction, the locking pin tends to move from the locked position to the unlocked position, causing the crank pin to drive the driven wheel to rotate forward. At this time, the torsion spring has a deformation-resistant reaction force to prevent the driven wheel from rotating forward away from the drive wheel, thereby preventing the locking pin from moving from the locked position to the unlocked position. This reduces the risk of the electronic padlock unlocking due to being struck, thus improving the security of the electronic padlock.

[0010] In some embodiments, the drive wheel includes a first stop, and the driven wheel includes a second stop. Along the rotation direction of the drive wheel, the first stop has a first side and a second side, and the second stop has a third side and a fourth side. When unlocked, the first side and the third side are in contact. One end of the torsion spring is connected to the second side, and the other end is connected to the fourth side.

[0011] The technical solution of this application embodiment, by setting a first stop and a second stop, makes the first side of the first stop and the third side of the second stop contact, thereby realizing the drive wheel driving the driven wheel to rotate in the forward direction to complete the unlocking. At the same time, the torsion spring connects the second side and the fourth side, realizing the torsion spring reset and driving the driven wheel to rotate in the reverse direction, reducing the risk of interference with the torsion spring when the drive wheel drives the driven wheel to rotate in the forward direction, which is conducive to improving the reliability of the electronic padlock.

[0012] In some embodiments, when the locking pin is in the locked position, the line connecting the orthographic projection of the central axis of the crank pin and the orthographic projection of the central axis of the driven wheel is defined as the first line, with the axial direction of the crank pin as the projection direction. The first line has an angle α with the first direction, satisfying: 0≤α<45°.

[0013] In the technical solution of this application embodiment, when the included angle α satisfies this condition, when the electronic padlock is struck in the first direction, the force on the crank pin in the first direction, and the component of the force decomposed to the tangent of the crank pin rotation, is still relatively small. This reduces the risk of the crank pin rotating, thereby reducing the risk that the locking pin will move from the locked position to the unlocked position along the first direction. This reduces the risk of the electronic padlock being unlocked due to being struck, and helps to improve the security of the electronic padlock.

[0014] In some embodiments, α=0.

[0015] In the technical solution of this application embodiment, when the locking pin is in the locked position, by setting α=0, that is, the rotational tangent direction of the crank pin is perpendicular to the first direction, when the electronic padlock is struck in the first direction, the force on the crank pin in the rotational direction is smaller, reducing the risk that the locking pin will move from the locked position to the unlocked position along the first direction due to the rotation of the crank pin, thus reducing the risk of the electronic padlock being unlocked due to being struck, which helps to improve the security of the electronic padlock.

[0016] In some embodiments, the locking pin has a central plane parallel to a first direction, and the portions of the locking pin located on either side of the central plane are symmetrical. When the locking pin is in the locked position, the crank pin is located on one side of the central plane. During the movement of the locking pin from the locked position to the unlocked position, the crank pin passes through the central plane at least once.

[0017] In the technical solution of this application embodiment, when the locking pin is in the locked position, the crank pin is positioned on one side of the center plane. During the process of the locking pin moving from the locked position to the unlocked position, the crank pin passes through the center plane at least once. This allows the crank pin to rotate to the center plane when the drive wheel drives the driven wheel to rotate. As a result, the force that drives the locking pin to move in the first direction can be transmitted along the center plane, making the force on both sides of the locking pin more balanced. This helps to improve the smoothness of the locking pin's movement, thereby improving the reliability of the electronic padlock.

[0018] In some embodiments, the drive wheel further includes a connecting post, one end of which is connected to the drive wheel and the other end of which is connected to the driven wheel. The connecting post and the driven wheel are coaxially arranged, and a torsion spring is sleeved on the outer circumferential surface of the connecting post.

[0019] The technical solution of this application embodiment connects the drive wheel and the driven wheel via a connecting post, which helps to improve the reliability of the connection between the drive wheel and the driven wheel. Simultaneously, by sleeved a torsion spring on the connecting post, the reliability of the torsion spring installation is improved.

[0020] 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 drive wheel is provided with a first switch slot that cooperates with the first micro switch. When unlocking, the drive wheel 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 drive wheel moves the first micro switch to the other side along the first direction, and the main board controls the motor to turn off.

[0021] The technical solution of this application embodiment, by setting a first micro switch to cooperate with the first switch slot of the drive wheel, 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.

[0022] 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 driven wheel is provided with a second switch slot that cooperates with the second micro switch. When unlocking, the driven wheel 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 driven wheel 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.

[0023] The technical solution of this application embodiment, by setting a second micro switch to cooperate with the second switch slot of the driven wheel, 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.

[0024] In some embodiments, the electronic padlock further includes a lower lock body and a dustproof pad. The lower lock body is connected to the upper lock body, and at least a portion of the driven wheel, the drive wheel, and the motor are all disposed within the lower lock body. The dustproof pad seals the connection between the upper and lower lock bodies.

[0025] The technical solution of this application embodiment reduces the risk of external impurities entering the lower lock body through the upper lock body by setting a dustproof pad to seal the connection between the upper and lower lock bodies, thereby improving the reliability of the electronic padlock.

[0026] In some embodiments, the upper locking body has a receiving cavity for receiving a locking pin, and the upper locking body has a first opening on a side opposite to the lower locking body, the first opening communicating with the receiving cavity. The electronic padlock includes a cover plate that closes the first opening.

[0027] The technical solution of this application embodiment, by setting a first opening, facilitates the installation and maintenance of the locking pin. At the same time, by setting a cover plate to close the first opening, the locking pin is limited in the connection direction between the upper and lower lock bodies, which helps to improve the reliability of the electronic padlock.

[0028] In some embodiments, the lower lock body has a channel on the side facing the upper lock body, through which a crank pin passes. The electronic padlock also includes a sealing ring, which is fitted onto the outer circumferential surface of the driven wheel and is used to seal the gap between the driven wheel and the inner wall of the channel.

[0029] The technical solution of this application embodiment improves the ease of engagement between the crank pin and the locking pin by providing a channel in the lower lock body. Simultaneously, a sealing ring is provided on the outer circumference of the driven wheel to reduce the risk of external impurities entering the lower lock body through the upper lock body, thereby improving the reliability of the electronic padlock.

[0030] In some embodiments, the lower lock body has a second opening at one end opposite to the upper lock body, and the electronic padlock also includes a dust cover, which is installed on the upper lock body and is used to close the second opening.

[0031] The technical solution of this application embodiment improves the convenience of installation and maintenance of the motor, drive wheel and driven wheel by setting a second opening in the lower lock body. At the same time, by setting a dust cover to close the second opening, the risk of external impurities entering the lower lock body through the second opening is reduced, which helps to improve the reliability of the electronic padlock.

[0032] 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

[0033] 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.

[0034] Figure 1A schematic diagram of the locked state of an electronic padlock provided as background for this application;

[0035] Figure 2 A schematic diagram of the unlocked state of an electronic padlock provided as background information for this application;

[0036] Figure 3 A schematic diagram of an electronic padlock before self-locking, provided as background technology for this application;

[0037] Figure 4 Exploded views of the structure of an electronic padlock provided in some embodiments of this application;

[0038] Figure 5 An exploded view of a portion of the structure of an electronic padlock provided in some embodiments of this application;

[0039] Figure 6 A schematic diagram of the locking body and locking pin provided in some embodiments of this application;

[0040] Figure 7 A schematic diagram of a locking pin and a driven wheel provided for some embodiments of this application;

[0041] Figure 8 Schematic diagrams of the structure of the locking pin and driven wheel engagement provided in some embodiments of this application;

[0042] Figure 9 A top view showing the engagement of the locking pin and the driven wheel in some embodiments of this application;

[0043] Figure 10 A top view showing the engagement of the locking pin and the driven wheel in some other embodiments of this application.

[0044] Icons: 1-Electronic padlock; 10-Locking body; 11-Receiving cavity; 12-First opening; 20-Locking pin; 21-Groove; 30-Driven wheel; 31-Crank pin; 32-Second stop ear; 321-Third side; 322-Fourth side; 33-Second switch slot; 40-Drive wheel; 41-First stop ear; 411-First side; 412-Second side; 42-First switch slot; 43-Connecting post; 50-Motor; 60-Torsion spring; 70-Main board; 71-First micro switch 72-Second micro switch; 80-Lower lock body; 81-Dustproof pad; 82-Channel; 83-Sealing ring; 84-Second opening; 85-Dustproof cover; 86-Cover plate; 90-Lock hook; 91-Lock hook housing; 911-Lock hook hole; 92-Lock hook groove; 93-Fixing shell; 94-Limit block; 95-Power supply; a-Central axis of crank pin; b-Central axis of driven wheel; c-Central surface; d-First connecting line; α-Included angle; X-First direction; Y-Forward; Z-Reverse. Detailed Implementation

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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).

[0051] Please refer to Figures 4 to 8 , 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 an exploded view of a portion of the structure of an electronic padlock provided in some embodiments of this application. Figure 6 This is a schematic diagram of the locking body and locking pin provided in some embodiments of this application. Figure 7 This is a schematic diagram of a locking pin and a driven wheel provided in some embodiments of this application. Figure 8 This is a schematic diagram illustrating the structure of the locking pin and driven wheel cooperation provided in some embodiments of this application. Embodiments of this application provide an electronic padlock 1, which includes a hook 90, a locking body 10, a locking pin 20, a driven wheel 30, a drive wheel 40, a motor 50, and a torsion spring 60. The locking pin 20 is movably mounted on the locking body 10 along a first direction X, and has a locked position extending out of the locking body 10 and an unlocked position retracted from the locking body 10. The locking pin 20 has a groove 21, and the driven wheel 30 includes a crank pin 31 located within the groove 21 and contacting the two groove walls of the groove 21 in the first direction X. The motor 50 is connected to the drive wheel 40, which is coaxially arranged with the driven wheel 30. One end of the torsion spring 60 is connected to the driven wheel 30, and the other end is connected to the drive wheel 40. The locking hook 90 is provided with a locking hook groove 92. The locking hook 90 has a first position where the locking hook groove 92 engages with the locking pin 20, and a second position where the locking hook groove 92 is separated from the locking pin 20. During unlocking, the motor 50 drives the drive wheel 40 to rotate in the forward Y direction. The drive wheel 40 abuts against the driven wheel 30 and drives the driven wheel 30 to rotate in the forward Y direction. The crank pin 31 drives the locking pin 20 from the locked position to the unlocked position, and the locking hook 90 moves from the first position to the second position. During locking, the motor 50 drives the drive wheel 40 to rotate in the reverse Z direction away from the driven wheel 30. The torsion spring 60 stores force, and the locking pin 20 tends to move to the locked position. When the locking hook 90 moves from the second position to the first position, the torsion spring 60 releases torque, driving the driven wheel 30 to rotate in the reverse Z direction, causing the crank pin 31 to drive the locking pin 20 from the unlocked position to the locked position.

[0052] In some embodiments, the first direction can be represented by the direction indicated by the letter X in the figure.

[0053] In some embodiments, the direction of rotation of the driven wheel 30 and the driving wheel can be represented by the direction indicated by the letter Y in the figure, and the direction of rotation can be represented by the direction indicated by the letter Z in the figure.

[0054] In some embodiments, the locking body 10 may have a receiving cavity 11, and a locking pin 20 is movably mounted on the locking body 10 along a first direction X, such that the locking pin 20 can extend out of the receiving cavity 11 and retract into the receiving cavity 11.

[0055] In some embodiments, the electronic padlock 1 further includes a hook 90 and a hook housing 91. The hook housing 91 has a hook hole 911 that communicates with the receiving cavity 11. The hook 90 is movably disposed within the hook hole 911 and has a hook groove 92. When locked, the locking pin 20 extends out of the receiving cavity 11 along the first direction X, and the end of the locking pin 20 facing away from the receiving cavity 11 engages with the hook groove 92. When unlocked, the locking pin 20 retracts into the receiving cavity 11 along the first direction X, and the locking pin 20 separates from the hook groove 92.

[0056] In some embodiments, the locking body 10, locking pin 20, driven wheel 30, drive wheel 40, motor 50 and torsion spring 60 may all be disposed within the lock hook housing 91.

[0057] In some embodiments, the driven wheel 30 may be disposed below the locking pin 20, and the crank pin 31 protrudes from the driven wheel 30 and engages with the groove 21. In the first direction X, the crank pin 31 contacts the two groove walls of the groove 21, thus eliminating the false travel of the crank pin 31 in the groove 21.

[0058] It should be noted that the dimensions of the crank pin 31 and the groove 21 may have errors in machining. In the first direction X, one end of the crank pin 31 may have a gap with one end of the groove 21.

[0059] The electronic padlock 1 may also include a hook spring, one end of which is connected to the hook 90, and the other end is connected to the hook housing 91. During unlocking, the motor 50 drives the drive wheel 40 to rotate in the forward Y direction. The drive wheel 40 abuts against the driven wheel 30 in the forward Y direction, thereby causing the driven wheel 30 to rotate in the forward Y direction. This causes the crank pin 31 to rotate in the forward Y direction, causing the crank pin 31 to move the locking pin 20 away from the hook 90 in the first direction X. This separates the locking pin 20 from the hook groove 92, resets the hook spring, and moves the hook 90 from the first position where the hook groove 92 engages with the locking pin 20 to the second position where the hook groove 92 is separated from the locking pin 20, thus achieving unlocking.

[0060] When locked, motor 50 drives drive wheel 40 to rotate in the opposite Z direction, separating drive wheel 40 from driven wheel 30, thus deforming torsion spring 60. When lock hook 90 is in the second position, lock hook 90 is not pressed down, and lock hook 90 abuts against locking pin 20, preventing locking pin 20 from extending out of receiving cavity 11 in the first direction X, i.e., locking pin 20 cannot move, causing driven wheel 30 to be unable to move. When lock hook 90 moves from the second position where lock hook groove 92 is separated from locking pin 20 to the first position where lock hook groove 92 engages with locking pin 20, i.e., lock hook 90 is pressed down, lock hook spring is compressed. Lock hook groove 92 corresponds to locking pin 20, so locking pin 20 is no longer blocked, torsion spring 60 resets and drives driven wheel 30 to rotate in the opposite Z direction until driven wheel 30 contacts drive wheel 40. At this time, the crank pin 31 rotates in the opposite direction Z, causing the crank pin 31 to drive the locking pin 20 to move closer to the lock hook 90 in the first direction X, so that the locking pin 20 cooperates with the lock hook groove 92 to achieve locking.

[0061] In some embodiments, the inner wall of the receiving cavity 11 may abut against both sides of the locking pin 20, so that the locking pin 20 can only move in the first direction X, and will not rotate with the crank pin 31.

[0062] The technical solution of this application embodiment uses a motor 50 to drive a drive wheel 40 to rotate the driven wheel 30 in the forward Y direction, thereby causing the crank pin 31 to move the locking pin 20, which in turn moves the lock hook 90 from the first position to the second position, thus unlocking the device. At the same time, the motor 50 drives the drive wheel 40 to rotate in the reverse Z direction, causing the drive wheel 40 to separate from the driven wheel 30, which causes the torsion spring 60 to deform. Simultaneously, the lock hook 90 moves from the second position to the first position, and the torsion spring 60 resets, causing the driven wheel 30 to rotate in the reverse Z direction, which in turn causes the crank pin 31 to move the locking pin 20, thus realizing the self-locking function of the electronic padlock 1 and improving the convenience of locking. When the electronic padlock 1 is struck in the first direction X, the locking pin 20 tends to move from the locked position to the unlocked position, causing the crank pin 31 to drive the driven wheel 30 to rotate in the positive direction Y. At this time, the torsion spring 60 has a deformation-resistant reaction force to prevent the driven wheel 30 from rotating in the positive direction Y away from the driving wheel, thereby preventing the locking pin 20 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.

[0063] Please refer to Figures 4 to 8 In some embodiments, the drive wheel 40 includes a first stop 41, and the driven wheel 30 includes a second stop 32. Along the rotation direction of the drive wheel 40, the first stop 41 has a first side 411 and a second side 412, and the second stop 32 has a third side 321 and a fourth side 322. When unlocked, the first side 411 and the third side 321 are in contact. One end of the torsion spring 60 is connected to the second side 412, and the other end is connected to the fourth side 322.

[0064] In some embodiments, the drive wheel 40 may be located below the driven wheel 30, the first lug 41 may protrude from the side of the drive wheel 40 facing the driven wheel 30, and the second lug 32 may protrude from the side of the driven wheel 30 facing the drive wheel 40.

[0065] In some embodiments, in the locked position, along the positive Y-direction of rotation of the drive wheel 40, the first stop 41 has a first side 411 that contacts the second stop 32, and the second stop 32 has a third side 321 that contacts the first stop 41. Along the positive Y-direction of rotation of the drive wheel 40, the second side 412, the first side 411, the third side 321, and the fourth side 322 are arranged sequentially.

[0066] When unlocking, the first side 411 contacts the third side 321, the motor 50 drives the drive wheel 40 to rotate in the forward Y direction, the first side 411 pushes the third side 321, thereby driving the driven wheel 30 to rotate in the forward Y direction. At this time, the drive wheel 40 and the driven wheel 30 rotate synchronously, the relative positions of the second side 412 and the fourth side 322 remain unchanged, and the torsion spring 60 is in the normal state.

[0067] When locked, motor 50 drives drive wheel 40 to rotate in the opposite Z direction, separating the first side 411 and the third side 321. Along the positive Y-direction of drive wheel 40, the distance between the second side 412 and the fourth side 322 gradually increases, stretching the torsion spring 60. Alternatively, along the negative Z-direction of drive wheel 40, the distance between the second side 412 and the fourth side 322 gradually decreases, compressing the torsion spring 60. When the locking hook 90 is pressed, the torsion spring 60 resets, causing the driven wheel 30 to rotate in the opposite Z direction until the first side 411 and the third side 321 contact.

[0068] It should be noted that whether the torsion spring 60 is deformed into compression or tension depends on the connection method between the torsion spring 60 and the second side 412 and the fourth side 322.

[0069] The technical solution of this application embodiment, by setting a first stop ear 41 and a second stop ear 32, makes the first side 411 of the first stop ear 41 and the third side 321 of the second stop ear 32 contact, thereby realizing that the drive wheel 40 drives the driven wheel 30 to rotate in the forward Y direction to complete the unlocking. At the same time, the torsion spring 60 connects the second side 412 and the fourth side 322, so that the torsion spring 60 resets and drives the driven wheel 30 to rotate in the reverse Z direction. This reduces the risk of interference between the drive wheel 40 and the torsion spring 60 when the drive wheel 40 drives the driven wheel 30 to rotate in the forward Y direction, which is beneficial to improving the reliability of the electronic padlock 1.

[0070] Please refer to Figures 4 to 8 and refer to Figure 10 , Figure 10This is a top view showing the engagement of a locking pin and a driven wheel according to other embodiments of this application. The obscured crank pin is indicated by a dashed line. In some embodiments, when the locking pin 20 is in the locked position, with the axial direction of the crank pin 31 as the projection direction, the line connecting the orthographic projection of the central axis a of the crank pin and the orthographic projection of the central axis b of the driven wheel is defined as the first connecting line d. The first connecting line d has an angle α with the first direction X, satisfying: 0 ≤ α < 45°.

[0071] In some embodiments, the included angle α satisfies the above conditions, and the included angle α can be any value among 0, 10°, 20°, 30°, 40°, and 44° or a value between two arbitrary values.

[0072] In some embodiments, with the axial direction of the crankpin as the projection direction, the central axis a of the crankpin and the central axis b of the driven wheel are projected onto the same plane to obtain a point representing the central axis a of the crankpin and a point representing the central axis b of the driven wheel. The first line d is obtained by connecting the two points, and the first line d is parallel to the first direction X. The first line can be represented by the letter d in the figure.

[0073] It should be noted that, because the position of the crank pin 31 during unlocking or locking is related to the final stopping position of the drive wheel 40 driven by the motor 50, the algorithm for controlling the rotation of the drive wheel 40 by the motor 50 or the program for the operation of the motor 50 may contain errors. Based on the above conditions satisfying the included angle α, the included angle α may deviate by 1-5°.

[0074] In the technical solution of this application embodiment, when the included angle α satisfies this condition, when the electronic padlock 1 is struck in the first direction X, the force on the crank pin 31 in the first direction X is still relatively small as the component of the force decomposed to the rotation tangent of the crank pin 31 is relatively small. This reduces the risk of the crank pin 31 rotating, thus reducing the risk that the locking pin 20 will move from the locked position to the unlocked position along the first direction X. This reduces the risk of the electronic padlock 1 being unlocked due to being struck, which is beneficial to improving the security of the electronic padlock 1.

[0075] Please refer to Figures 4 to 8 and refer to Figure 9 , Figure 9 This is a top view illustrating the engagement of a locking pin and a driven wheel according to some embodiments of this application. The obstructed crank pin is indicated by a dashed line. In some embodiments, α = 0.

[0076] In some embodiments, when the locking pin 20 is in the locked position, the central axis a of the crank pin and the central axis b of the driven wheel are arranged along the first direction X.

[0077] In some embodiments, when the locking pin 20 is in the locked position, the central axis a of the crank pin and the central axis b of the driven wheel are arranged along the first direction X. During the movement of the locking pin 20 from the unlocked position to the locked position, the drive wheel 40 can drive the driven wheel 30 to rotate half a revolution in the reverse direction Z via the torsion spring 60. During the movement of the locking pin 20 from the locked position to the unlocked position, the drive wheel 40 can drive the driven wheel 30 to rotate half a revolution in the forward direction Y, so that when the locking pin 20 is in the unlocked position, the central axis a of the crank pin and the central axis b of the driven wheel are arranged along the first direction X. Using the axis of the crank pin 31 as the projection direction, the central axis a of the crank pin and the central axis b of the driven wheel are projected onto the same plane, resulting in a point representing the central axis a of the crank pin and a point representing the central axis b of the driven wheel. The line d connecting the two points is parallel to the first direction X. The line can be represented by the letter d in the figure.

[0078] In the technical solution of this application embodiment, when the locking pin 20 is in the locked position, by setting α=0, that is, the rotation tangent direction of the crank pin 31 is perpendicular to the first direction X, when the electronic padlock 1 is struck in the first direction X, the force on the crank pin 31 in the rotation direction is smaller, reducing the risk that the locking pin 20 will move from the locked position to the unlocked position along the first direction X due to the rotation of the crank pin 31, thus reducing the risk of the electronic padlock 1 being unlocked due to being struck, which is beneficial to improving the security of the electronic padlock 1.

[0079] Please refer to Figures 4 to 9 In some embodiments, the locking pin 20 has a central plane c parallel to the first direction X, and the portions of the locking pin 20 located on both sides of the central plane c are symmetrical. When the locking pin 20 is in the locked position, the crank pin 31 is located on one side of the central plane c. During the movement of the locking pin 20 from the locked position to the unlocked position, the crank pin 31 passes through the central plane c at least once.

[0080] In some embodiments, the center plane can be represented by the letter c in the figure.

[0081] In some embodiments, the two parts of the locking pin 20 may be symmetrical with respect to the center surface c on both sides of the center surface c.

[0082] In some embodiments, the center surface c may have a first side 411 and a second side 412 opposite to each other. When the locking pin 20 is in the locked position, the crank pin 31 may be located on the first side 411 of the center surface c; when the locking pin 20 is in the unlocked position, the crank pin 31 may also be located on the first side 411 of the center surface c. That is, during the process of the locking pin 20 moving from the locked position to the unlocked position, the crank pin 31 first moves from the first side 411 to the second side 412, and then moves from the second side 412 back to the first side 411. Similarly, during the process of the locking pin 20 moving from the unlocked position to the locked position, the crank pin 31 first moves from the first side 411 to the second side 412, and then moves from the second side 412 back to the first side 411.

[0083] In some embodiments, during the movement of the locking pin 20 from the unlocked position to the locked position, the drive wheel 40 can drive the driven wheel 30 to rotate half a revolution in the reverse Z direction via the torsion spring 60, and during the movement of the locking pin 20 from the locked position to the unlocked position, the drive wheel 40 can drive the driven wheel 30 to rotate half a revolution in the forward Y direction. When the locking pin 20 is in the locked position, the central axis a of the crank pin and the central axis b of the driven wheel are arranged along the first direction X. When the locking pin 20 is in the unlocked position, the central axis a of the crank pin and the central axis b of the driven wheel are arranged along the first direction X.

[0084] During the movement of the locking pin 20 from the locked position to the unlocked position, and during the movement of the locking pin 20 from the unlocked position to the locked position, when the drive wheel 40 initially drives the driven wheel 30 to rotate, the tangential direction of the crank pin 31's rotation is perpendicular to the first direction X. At this time, the component force of the crank pin 31 driving the locking pin 20 to move along the first direction X is relatively small. After the drive wheel 40 drives the driven wheel 30 to rotate a certain angle, the angle between the tangential direction of the crank pin 31's rotation and the first direction X gradually increases, causing the component force of the crank pin 31 driving the locking pin 20 to move along the first direction X to gradually increase, which is beneficial to improving the efficiency of the crank pin 31 driving the locking pin 20 to move.

[0085] Meanwhile, after the drive wheel 40 drives the driven wheel 30 to rotate at a certain angle, the position of the crank pin 31 is close to the center surface c, so that the component force of the crank pin 31 driving the locking pin 20 to move along the first direction X can be transmitted along the center surface c, so that the locking pin 20 is subjected to relatively balanced force on both sides of the center surface c, which is conducive to improving the smoothness of the movement of the locking pin 20, thereby improving the reliability of the electronic padlock 1.

[0086] In the technical solution of this application embodiment, when the locking pin 20 is in the locked position, the crank pin 31 is set to be located on one side of the center plane c. During the process of the locking pin 20 moving from the locked position to the unlocked position, the crank pin 31 passes through the center plane c at least once. When the drive wheel 40 drives the driven wheel 30 to rotate, the crank pin 31 can rotate to the center plane c. This allows the force of the crank pin 31 driving the locking pin 20 to move along the first direction X to be transmitted along the center plane c. This makes the force on both sides of the locking pin 20 more balanced, which is beneficial to improving the smoothness of the movement of the locking pin 20, thereby improving the reliability of the electronic padlock 1.

[0087] Please refer to Figure 5 and Figure 6 In some embodiments, the drive wheel 40 further includes a connecting post 43, one end of which is connected to the drive wheel 40 and the other end of which is connected to the driven wheel 30. The connecting post 43 is coaxially arranged with the driven wheel 30, and a torsion spring 60 is sleeved on the outer peripheral surface of the connecting post 43.

[0088] In some embodiments, along the axial direction of the crank pin 31, one end of the connecting post 43 is connected to the side of the drive wheel 40 facing the driven wheel 30, and the other end of the connecting post 43 is connected to the side of the driven wheel 30 facing the drive wheel 40. The driven wheel 30 may be provided with a connecting groove corresponding to the connecting post 43, and the connecting post 43 is inserted into the connecting groove.

[0089] In some embodiments, the connecting column 43, the drive wheel 40, and the driven wheel 30 may all be coaxially arranged.

[0090] In some embodiments, the connecting post 43 may be integrally formed with the drive wheel 40.

[0091] The technical solution of this application embodiment connects the drive wheel 40 and the driven wheel 30 via the connecting post 43, which helps to improve the reliability of the connection between the drive wheel 40 and the driven wheel 30. At the same time, by sleeved the torsion spring 60 on the connecting post 43, the reliability of the installation of the torsion spring 60 is improved.

[0092] Please refer to Figures 4 to 8 In some embodiments, the electronic padlock 1 further includes a main board 70 and a first micro switch 71. The first micro switch 71 and the motor 50 are respectively connected to the main board 70 via signals. The drive wheel 40 is provided with a first switch groove 42 that cooperates with the first micro switch 71. When unlocking, the drive wheel 40 drives the first micro switch 71 to move to one side along the first direction X, and the main board 70 controls the motor 50 to turn off. When locking, the drive wheel 40 drives the first micro switch 71 to move to the other side along the first direction X, and the main board 70 controls the motor 50 to turn off.

[0093] In some embodiments, the motherboard 70 and the first micro switch 71 can be connected by a cable, WiFi, Bluetooth, or other means.

[0094] In some embodiments, the signal connection between the motherboard 70 and the motor 50 can be via cable connection, WiFi connection, Bluetooth connection, etc.

[0095] In some embodiments, the way in which the motherboard 70 is connected to the first micro switch 71 and the way in which the motherboard 70 is connected to the motor 50 can be the same or different.

[0096] In some embodiments, the motherboard 70 can receive user instructions to control the motor 50 to drive the drive wheel 40, thereby causing the drive wheel 40 to drive the driven wheel 30 to rotate in the forward Y direction, thereby enabling the crank pin 31 to drive the locking pin 20 to retract into the locking body 10 along the first direction X, thus achieving unlocking.

[0097] In some embodiments, the first switch slot 42 may be disposed on the outer peripheral surface of the drive wheel 40, and the first switch slot 42 cooperates with the first micro switch 71.

[0098] In some embodiments, the first switch groove 42 can be integrally formed with the drive wheel 40, or it can be formed by milling.

[0099] In some embodiments, during the movement of the locking pin 20 from the locked position to the unlocked position, the motor 50 drives the drive wheel 40 to rotate half a turn in the forward Y direction, thereby causing the driven wheel 30 to rotate half a turn in the forward Y direction. This causes the crank pin 31 to drive the locking pin 20 to retract into the locking body 10 in the first direction X, so that the locking pin 20 abuts against the inner wall of the locking body 10. During unlocking, the motor 50 drives the drive wheel 40 to rotate in the forward Y direction. When the drive wheel 40 rotates in the forward Y direction, the first switch slot 42 rotates accordingly. After the first switch slot 42 rotates half a turn in the forward Y direction, the slot wall of the first switch slot 42 moves the first micro switch 71 to one side. After receiving the position signal of the first micro switch 71, the main board 70 controls the motor 50 to shut down, reducing the risk of damage to the crank pin 31 or the locking pin 20 caused by the motor 50 driving the drive wheel 40 to rotate more than half a turn.

[0100] When locked, the motor 50 drives the drive wheel 40 to rotate in the opposite Z direction. When the drive wheel 40 rotates in the opposite Z direction, the first switch slot 42 rotates accordingly. After the first switch slot 42 rotates half a turn in the opposite Z direction, the slot wall of the first switch slot 42 moves the first micro switch 71 to the other side. After the main board 70 receives the position signal of the first micro switch 71, it controls the motor 50 to turn off, reducing the risk that the torsion spring 60 will be damaged due to the motor 50 driving the drive wheel 40 to rotate more than half a turn.

[0101] The technical solution of this application embodiment, by setting the first micro switch 71 to cooperate with the first switch slot 42 of the drive wheel 40, enables the first micro switch 71 to turn off the motor 50 after the motor 50 drives the drive wheel 40 to rotate into position during unlocking and locking. This improves the convenience of unlocking and locking, reduces the risk of the drive wheel 40 not rotating into position and thus affecting subsequent use, and improves the reliability of the electronic padlock 1.

[0102] Please refer to Figures 4 to 8 In some embodiments, the electronic padlock 1 further includes a main board 70 and a second micro switch 72. The second micro switch 72 is signal-connected to the main board 70, and the driven wheel 30 is provided with a second switch slot 33 that cooperates with the second micro switch 72. When unlocking, the driven wheel 30 drives the second micro switch 72 to move to one side along the first direction X, and the main board 70 sends a signal to the user that the electronic padlock 1 is in an unlocked state. When locking, the driven wheel 30 drives the second micro switch 72 to move to the other side along the first direction X, and the main board 70 sends a signal to the user that the electronic padlock 1 is in a locked state.

[0103] In some embodiments, the motherboard 70 and the second micro switch 72 can be connected by a cable, WiFi, Bluetooth, or other means.

[0104] In some embodiments, the motherboard 70 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, 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.

[0105] In some embodiments, the second switch slot 33 may be disposed on the outer peripheral surface of the driven wheel 30, and the second switch slot 33 cooperates with the second micro switch 72.

[0106] In some embodiments, the second switch groove 33 can be integrally formed with the driven wheel 30, or it can be formed by milling.

[0107] When unlocking, the motor 50 drives the drive wheel 40 to rotate in the positive Y direction, thereby driving the driven wheel 30 to rotate in the positive Y direction. When the driven wheel 30 rotates in the positive Y direction, the second switch slot 33 rotates accordingly. After the second switch slot 33 rotates half a revolution in the positive Y direction, the slot wall of the second switch slot 33 moves the second micro switch 72 to one side. After receiving the position signal of the second micro switch 72, the main board 70 sends the information that the electronic padlock 1 is in the unlocked state to the user.

[0108] When locked, the motor 50 drives the drive wheel 40 to rotate in the opposite direction Z. The drive wheel 40 drives the driven wheel 30 to rotate in the opposite direction Z through the torsion spring 60. When the driven wheel 30 rotates in the opposite direction Z, the second switch slot 33 rotates accordingly. After the second switch slot 33 rotates half a turn in the opposite direction Z, the slot wall of the second switch slot 33 moves the second micro switch 72 to the other side. After receiving the position signal of the second micro switch 72, the main board 70 sends the information that the electronic padlock 1 is in the locked state to the user.

[0109] The technical solution of this application embodiment, by setting the second micro switch 72 to cooperate with the second switch slot 33 of the driven wheel 30, enables the main board 70 to send information to the user that the electronic padlock 1 is in an unlocked state after unlocking, and the main board 70 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.

[0110] Please refer to Figure 4 and Figure 5 In some embodiments, the electronic padlock 1 further includes a lower lock body 80 and a dustproof pad 81. The lower lock body 80 is connected to the upper lock body 10, and at least a portion of the driven wheel 30, the drive wheel 40, and the motor 50 are all disposed within the lower lock body 80. The dustproof pad 81 seals the connection between the upper lock body 10 and the lower lock body 80.

[0111] In some embodiments, the lower lock body 80 may be disposed within the lock hook housing 91.

[0112] In some embodiments, the locking body 10 may have a receiving cavity 11, and a locking pin 20 is movably mounted on the locking body 10 along a first direction X, such that the locking pin 20 can extend out of and retract into the receiving cavity 11. The side of the locking body 10 facing the lower locking body 80 may be provided with an opening, such that a crank pin 31 can extend into the receiving cavity 11 from the opening to engage with a groove 21.

[0113] In some embodiments, the drive wheel 40 and the motor 50 may be disposed within the lower lock body 80, a portion of the driven wheel 30 may be disposed within the lower lock body 80, and the crank pin 31 of the driven wheel 30 may extend out of the lower lock body 80 to enter the upper lock body 10.

[0114] In some embodiments, the lower lock body 80 may be provided with a groove that matches the outer contour of the upper lock body 10, so that the end of the upper lock body 10 facing the upper lock body 10 can be embedded in the groove.

[0115] In some embodiments, a dustproof pad 81 may be disposed within the groove to seal the gap between the locking body 10 and the groove.

[0116] In some embodiments, a dustproof pad 81 may be disposed in an opening on the side of the upper lock body 10 facing the lower lock body 80, sealing the gap between the inner wall of the opening and the upper lock body 10.

[0117] In some embodiments, the dustproof pad 81 may be made of plastic, silicone, or the like.

[0118] As described above, the hook hole 911 communicates with the receiving cavity 11. External impurities may enter the upper lock body 10 through the hook hole 911. The side of the lower lock body 80 facing the upper lock body 10 may be provided with a channel 82. The crank pin 31 passes through the channel 82 and enters the upper lock body 10 to cooperate with the groove 21. Impurities may enter the lower lock body 80 from the upper lock body 10 through the channel 82. The lower lock body 80 is provided with a motor 50, a drive wheel 40, and a driven wheel 30. It may also be provided with a main board 70, a first micro switch 71, and a second micro switch 72. Impurities may block the drive wheel 40 and the driven wheel 30, and may also damage the main board 70, the first micro switch 71, and the second micro switch 72. In some embodiments, a dustproof pad 81 is provided to seal the connection between the upper lock body 10 and the lower lock body 80, reducing the risk of external impurities entering the lower lock body 80 from the upper lock body 10, which helps to improve the reliability of the electronic padlock 1.

[0119] The technical solution of this application embodiment, by setting a dustproof pad 81 to seal the connection between the upper lock body 10 and the lower lock body 80, reduces the risk of external impurities entering the lower lock body 80 from the upper lock body 10, which helps to improve the reliability of the electronic padlock 1.

[0120] Please refer to Figures 4 to 6 In some embodiments, the upper locking body 10 has a receiving cavity 11 for accommodating the locking pin 20, and the upper locking body 10 has a first opening 12 on the side opposite to the lower locking body 80, the first opening 12 communicating with the receiving cavity 11. The electronic padlock 1 includes a cover plate 86 that closes the first opening 12.

[0121] In some embodiments, the upper locking body 10 has a receiving cavity 11 for receiving a locking pin 20, the locking pin 20 being movably mounted to the upper locking body 10 in a first direction X, such that the locking pin 20 can extend out of and retract into the receiving cavity 11. To reduce the risk of the locking pin 20 wobbling within the receiving cavity 11, the opening of the upper locking body 10 facing the lower locking body 80, and the opening for the locking pin 20 to extend out of and retract into the receiving cavity 11, are typically set to be small. To facilitate the installation of the locking pin 20 within the receiving cavity 11 and to facilitate maintenance of the locking pin 20, the upper locking body 10 has a first opening 12 on the side opposite to the lower locking body 80, through which the locking pin 20 can be installed into the receiving cavity 11.

[0122] In some embodiments, the cover plate 86 can be connected to the upper lock body 10 by screws and closes the first opening 12. When installing or maintaining the locking pin 20, the screws are removed so that the cover plate 86 opens the first opening 12. After installation or maintenance, the locking pin 20 is movably disposed in the receiving cavity 11 along the first direction X, and the cover plate 86 is connected to the upper lock body 10 by screws and closes the first opening 12.

[0123] The technical solution of this application embodiment, by setting a first opening 12, facilitates the installation and maintenance of the locking pin 20. At the same time, by setting a cover plate 86 to close the first opening 12, the locking pin 20 is limited in the connection direction between the upper lock body 10 and the lower lock body 80, which helps to improve the reliability of the electronic padlock 1.

[0124] Please refer to Figure 4 In some embodiments, the lower lock body 80 has a channel 82 on the side facing the upper lock body 10, and the crank pin 31 passes through the channel 82. The electronic padlock 1 also includes a sealing ring 83, which is sleeved on the outer peripheral surface of the driven wheel 30 and is used to seal the gap between the driven wheel 30 and the inner wall of the channel 82.

[0125] In some embodiments, the sealing ring 83 may be made of plastic, silicone, or the like.

[0126] In some embodiments, the upper locking body 10 may have a receiving cavity 11, and a locking pin 20 is movably mounted on the upper locking body 10 along a first direction X, such that the locking pin 20 can extend out of and retract into the receiving cavity 11. The side of the upper locking body 10 facing the lower locking body 80 may have an opening, and the side of the lower locking body 80 facing the upper locking body 10 may have a channel 82. A crank pin 31 passes through the channel 82 and the opening to enter the upper locking body 10 to engage with the groove 21.

[0127] In some embodiments, the outer peripheral surface of the driven wheel 30 may be provided with a mounting groove that mates with the sealing ring 83. The sealing ring 83 is disposed in the mounting groove and sleeved on the outer peripheral surface of the driven wheel 30.

[0128] As described above, the hook hole 911 communicates with the receiving cavity 11. External impurities may enter the upper lock body 10 through the hook hole 911, and may also enter the lower lock body 80 from the upper lock body 10 through the channel 82. The lower lock body 80 is equipped with a motor 50, a drive wheel 40, and a driven wheel 30, and may also be equipped with a main board 70, a first micro switch 71, and a second micro switch 72. Impurities may clog the drive wheel 40 and the driven wheel 30, and may also damage the main board 70, the first micro switch 71, and the second micro switch 72. In some embodiments, the sealing ring 83 is used to seal the gap between the driven wheel 30 and the inner wall of the channel 82, reducing the risk of external impurities entering the lower lock body 80 from the upper lock body 10, thus improving the reliability of the electronic padlock 1.

[0129] The technical solution of this application embodiment improves the ease of engagement between the crank pin 31 and the locking pin 20 by providing a channel 82 in the lower lock body 80. Simultaneously, a sealing ring 83 is provided on the outer circumferential surface of the driven wheel 30 to reduce the risk of external impurities entering the lower lock body 80 through the upper lock body 10, thereby improving the reliability of the electronic padlock 1.

[0130] Please refer to Figure 4 In some embodiments, the lower lock body 80 has a second opening 84 at the end opposite to the upper lock body 10, and the electronic padlock 1 also includes a dust cover 85, which is installed on the upper lock body 10 and is used to close the second opening 84.

[0131] In some embodiments, the lower lock body 80 is provided with a motor 50, a drive wheel 40, and a driven wheel 30, and may also be provided with a main board 70, a first micro switch 71, and a second micro switch 72. In order to reduce the risk of the driven wheel 30, the drive wheel 40, and the motor 50 wobbling within the lower lock body 80, and to reduce the risk of impurities in the upper lock body 10 entering the lower lock body 80, the channel 82 of the upper lock body 10 is usually set to be small. In order to facilitate the installation of the motor 50, the drive wheel 40, the driven wheel 30, the main board 70, the first micro switch 71, and the second micro switch 72, the lower lock body 80 may be provided with a second opening 84.

[0132] In some embodiments, the dust cover 85 can be connected to the lower lock body 80 by screws and closes the second opening 84. When installing or maintaining the components inside the lower lock body 80, the screws are removed to open the second opening 84 of the dust cover 85. After installation or maintenance is completed, the dust cover 85 is connected to the lower lock body 80 by screws and closes the second opening 84.

[0133] The technical solution of this application embodiment improves the convenience of installation and maintenance of the motor 50, drive wheel 40 and driven wheel 30 by providing a second opening 84 in the lower lock body 80. At the same time, by providing a dust cover 85 to close the second opening 84, the risk of external impurities entering the lower lock body 80 through the second opening 84 is reduced, which helps to improve the reliability of the electronic padlock 1.

[0134] In some embodiments, the electronic padlock 1 may further include a fixed housing 93 and a limiting block 94. The fixed housing 93 is disposed within the lower lock body 80 and has a receiving space for accommodating the motor 50. The side of the fixed housing 93 facing the locking pin 20 has an opening communicating with the receiving space. The motor 50 is disposed within the receiving space through the opening, and the fixed housing 93 can be fastened to the inner wall of the lower lock body 80 by screws.

[0135] In some embodiments, the limiting block 94 may be disposed within the fixed housing 93 and engaged with the motor 50 to reduce the risk of the motor 50 rotating or moving within the fixed housing 93.

[0136] In some embodiments, the electronic padlock 1 may also include a power supply 95, which supplies power to the main board 70 and the motor 50.

[0137] 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 torsion spring type anti-knock electronic padlock, characterized in that, It includes a locking hook, locking body, locking pin, driven wheel, drive wheel, motor, and torsion spring; The locking pin is movably mounted on the upper lock body along a first direction, and 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 has a groove, and the driven wheel includes a crank pin, which is located in the groove and contacts the two groove walls of the groove in the first direction. The motor is connected to the drive wheel, the drive wheel and the driven wheel are coaxially arranged, one end of the torsion spring is connected to the driven wheel, and the other end is connected to the drive wheel; The locking hook is provided with a locking hook groove, and the locking hook has a first position in which the locking hook groove engages with the locking pin and a second position in which the locking hook groove is separated from the locking pin; When unlocking, the motor drives the drive wheel to rotate in the forward direction, the drive wheel abuts against the driven wheel and drives the driven wheel to rotate in the forward direction, the crank pin drives the locking pin to move from the locked position to the unlocked position, and the lock hook moves from the first position to the second position; When locked, the motor drives the drive wheel to rotate in the opposite direction away from the driven wheel, the torsion spring stores force, and the locking pin tends to move to the locked position. When the locking hook moves from the second position to the first position, the torsion spring releases torque to drive the driven wheel to rotate in the opposite direction, so that the crank pin drives the locking pin to move to the locked position.

2. The electronic padlock according to claim 1, characterized in that, The drive wheel includes a first stop, and the driven wheel includes a second stop; Along the rotation direction of the drive wheel, the first stop has a first side and a second side, and the second stop has a third side and a fourth side. When unlocked, the first side and the third side are in contact. One end of the torsion spring is connected to the second side, and the other end is connected to the fourth side.

3. The electronic padlock according to claim 1, characterized in that, When the locking pin is in the locked position, with the axial direction of the crank pin as the projection direction, the line connecting the orthographic projection of the central axis of the crank pin and the orthographic projection of the central axis of the driven wheel is defined as the first line. The first line has an angle α with the first direction, satisfying: 0≤α<45°.

4. The electronic padlock according to claim 3, characterized in that, α=0。 5. The electronic padlock according to claim 1, characterized in that, The locking pin has a central surface parallel to the first direction, and the portions of the locking pin located on both sides of the central surface are symmetrical to each other. When the locking pin is in the locked position, the crank pin is located on one side of the center surface; During the movement of the locking pin from the locked position to the unlocked position, the crank pin passes through the center plane at least once.

6. The electronic padlock according to claim 1, characterized in that, The drive wheel also includes a connecting column, one end of which is connected to the drive wheel and the other end of which is connected to the driven wheel; The connecting post is coaxially arranged with the driven wheel, and the torsion spring is sleeved on the outer circumferential surface of the connecting post.

7. The electronic padlock according to claim 1, 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 drive wheel is provided with a first switch slot that cooperates with the first micro switch. When unlocking, the drive wheel 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 drive wheel 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.

8. 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 driven wheel is provided with a second switch slot that cooperates with the second micro switch. When unlocking, the driven wheel drives the second micro switch to move to one side along the first direction, and the main board sends a message to the user that the electronic padlock is in the unlocked state; When locked, the driven wheel 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.

9. The electronic padlock according to claim 1, characterized in that, The electronic padlock also includes: The lower locking body is connected to the upper locking body, and at least a portion of the driven wheel, the drive wheel, and the motor are all disposed within the lower locking body; A dustproof pad is used to seal the connection between the upper lock body and the lower lock body.

10. The electronic padlock according to claim 9, characterized in that, The upper locking body has a receiving cavity for accommodating the locking pin, and the upper locking body has a first opening on the side opposite to the lower locking body, the first opening communicating with the receiving cavity; The electronic padlock includes a cover plate that closes the first opening.

Images