Padlock, control system and control method

Abstract

The invention provides a padlock, a control system and a control method. The padlock comprises a lock body and a lock beam. The lock body is provided with a lock hole; a channel is formed in the portion, used for being inserted into the lock hole, of the lock beam in the first direction. The lock body comprises a lock body. The first piece is arranged on the lock body, and one end of the first piece is used for entering and exiting the channel; the self-holding electromagnet is arranged on the lock body, and one end of a connecting rod of the self-holding electromagnet is used for going in and out of the channel, so that when the lock beam is inserted into the lock hole, and one end of the first piece moves in the channel in the direction away from the channel; one end of a connecting rod of the self-holding electromagnet abuts against one end of the first piece so that the end of the connecting rod of the self-holding electromagnet can move in the direction of entering the channel to enter the channel. According to the padlock, in the locking state, one end of the connecting rod constantly abuts against one end of the first piece, it is guaranteed that even under the action of external force, at least one of the connecting rod and the first piece can be located in the channel, so that the lock beam is locked in the lock hole, and the safety of the padlock is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of electronic equipment, and more specifically, relates to a padlock, a control system, and a control method. Background Art

[0002] A padlock is a common type of lock, consisting of a lock body, a shackle (or hook), and a lock cylinder. The shackle is typically passed through the object to be locked (such as a door knocker or chain) and then locked into the lock body to achieve the desired locking function. It features a simple structure, ease of use, and low cost, making it widely used in homes, warehouses, schools, public facilities, and many other settings.

[0003] Padlocks include pin locks, blade locks, magnetic locks, and smart padlocks. Smart padlocks combine electronic technology and mechanical structure, typically using unlocking methods such as passwords, fingerprints, Bluetooth, and NFC. For example, password smart padlocks unlock by entering the correct password; fingerprint smart padlocks open by recognizing the user's fingerprint. Smart locks offer high security and ease of use.

[0004] However, existing smart padlocks have the problem of insufficient security. When the smart padlock is in a locked state, the lock beam of the padlock can be easily pulled out of the lock hole by external force, causing a safety hazard. Summary of the Invention

[0005] In order to improve or solve the problem in the related art that the lock beam of the padlock is easily pulled out of the lock hole, resulting in a safety hazard, the purpose of the present application is to provide a padlock, a control system and a control method.

[0006] In a first aspect, an embodiment of the present application provides a padlock, comprising a lock body and a lock beam; the lock body is provided with a lock hole; a portion of the lock beam for inserting into the lock hole is provided with a channel along a first direction; the lock body comprises: Lock body; The first piece is provided on the lock body, and one end of the piece is used for entering and exiting the passage; And a self-holding electromagnet is provided on the lock body, one end of the connecting rod of the self-holding electromagnet is used to enter and exit the channel, so that when the lock beam is inserted into the lock hole and one end of the first piece moves in the direction of leaving the channel in the channel, one end of the connecting rod of the self-holding electromagnet presses against one end of the first piece to make one end of the connecting rod of the self-holding electromagnet move in the direction of entering the channel to enter the channel.

[0007] Furthermore, the padlock further comprises: A pressing member, the pressing member is connected to the lock body through a first elastic member and is connected to the other end of the first member; When one end of the connecting rod of the self-holding electromagnet and one end of the first member are located in the channel and the self-holding electromagnet loses power, the first member moves toward the lock body and squeezes the first elastic member, so that one end of the first member abuts against one end of the connecting rod of the self-holding electromagnet to move one end of the connecting rod of the self-holding electromagnet in a direction away from the channel to leave the channel; when one end of the connecting rod of the self-holding electromagnet leaves the channel, the first elastic member restores its shape to make one end of the first member move in a direction away from the channel to leave the channel.

[0008] Furthermore, the padlock also includes a second piece; the second piece is provided with a through hole and an oblique groove; the through hole passes through the oblique groove along a first direction; a first rod is provided after one end of the connecting rod passes through the through hole; the first rod is stuck in the oblique groove and movably connected to the oblique groove, so that when the second piece moves in the direction of the lock beam being inserted into the lock hole, the oblique groove drives the first rod to move so that the connecting rod moves in the direction of entering the channel.

[0009] Furthermore, the padlock further comprises a linear encoder; the actuator of the linear encoder is connected to the first member; the linear encoder comprises a carrier; the carrier is provided with: A plurality of first conductive members extending along a first direction and spaced apart from each other along a second direction are provided on one side of the carrier; the first direction and the second direction intersect; at least one first conductive member includes two sub-conductive members; both of the two sub-conductive members extend along the first direction and are spaced apart from each other along the first direction on one side of the carrier; The actuator of the linear encoder includes: The second conductive member is provided with a plurality of mutually spaced metal contact portions, so that when the plurality of metal contact portions slide in contact with the plurality of first conductive members from a first point to a second point along the first direction, at least two of the plurality of metal contact portions are electrically connected to the plurality of first conductive members through the second conductive member; the interval between the two sub-conductive members is between the first point and the second point.

[0010] In a second aspect, an embodiment of the present application provides a control system for the padlock, the control system comprising: a linear encoder disposed on the lock body; an actuator of the linear encoder is connected to the pressing member, so that when the pressing member reciprocates in the first direction, the actuator of the linear encoder and the pressing member move synchronously in the first direction; A power supply, used to connect to the linear encoder, the self-holding electromagnet and the controller; And the controller: Used to be connected to the self-holding electromagnet and the linear encoder respectively; It is used to control the on and off state and the on and off duration of the self-holding electromagnet according to the change signal of the conduction position of the linear encoder, so that when the lock beam is inserted into the lock hole, one end of the first piece is located in the channel and one end of the first piece moves in the direction of leaving the channel, one end of the connecting rod of the self-holding electromagnet presses against one end of the first piece to make one end of the connecting rod of the self-holding electromagnet move in the direction of entering the channel to enter the channel.

[0011] Furthermore, at least two or three first conductive members include two sub-conductive members; the two sub-conductive members extend along the first direction and are spaced apart along the first direction on the first surface of the carrier; the positions of the at least two or three first conductive members at intervals in the first direction are different from each other; And / or, the carrier includes a PCB substrate; The plurality of first conductive elements include: a plurality of metal strips spaced apart and arranged on the first surface of the PCB substrate along the second direction of the PCB substrate; The plurality of metal strips include a first metal strip, a second metal strip, and a third metal strip; each of the first metal strip, the second metal strip, and the third metal strip includes a first sub-metal strip and a second sub-metal strip; the first sub-metal strip extends along the first direction, and two first sub-metal strips are spaced apart along the first direction on the first surface of the PCB substrate; The first metal strip and the third metal strip are respectively spaced apart on one side and the other side of the second metal strip along the second direction; The first sub-metal strip of the first metal strip is provided with a fourth signal pin, and the second sub-metal strip of the first metal strip is provided with a third signal pin; the first sub-metal strip of the second metal strip is provided with a first signal pin, and the second sub-metal strip of the second metal strip is provided with a fourth signal pin; the first sub-metal strip of the third metal strip is provided with a second signal pin, and the second sub-metal strip of the third metal strip is provided with a first signal pin.

[0012] Furthermore, the second conductive member slides along the first direction so that the second conductive member is in any one of the first conducting position to the seventh conducting position on the first surface of the carrier and is in a conducting state; When the second conductive member is in the first conducting position, the fourth signal pin of the first metal strip, the first signal pin of the second metal strip, and the second signal pin of the third metal strip are electrically connected through the second conductive member; When the second conductive member is in the second conductive position, the first signal pin of the second metal strip and the second signal pin of the third metal strip are conductively connected via the second conductive member, and the first metal strip and the second conductive member are not conductively connected; When the second conductive member is in the third conducting position, the third signal pin on the first metal strip, the first signal pin on the second metal strip, and the second signal pin on the third metal strip are electrically connected via the second conductive member; When the second conductive member is in the fourth conductive position, the third signal pin on the first metal strip and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the second metal strip and the second conductive member are not conductively connected; When the second conductive member is in the fifth conducting position, the third signal pin on the first metal strip, the fourth signal pin on the second metal strip, and the second signal pin on the third metal strip are electrically connected via the second conductive member; When the second conductive member is in the sixth conductive position, the fourth signal pin on the second metal strip and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the first metal strip and the second conductive member are not conductively connected; When the second conductive member is in the seventh conducting position, the third signal pin on the first metal strip, the fourth signal pin on the second metal strip, and the first signal pin on the third metal strip are electrically connected via the second conductive member; or, The second conductive member slides along the first direction so that the second conductive member is in any one of the first conducting position to the ninth conducting position on the first surface of the carrier and is in a conducting state; When the second conductive member is in the first conductive position, the fourth signal pin on the first metal strip and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the second metal strip and the second conductive member are not conductively connected; When the second conductive member is in the second conductive position, the fourth signal pin on the first metal strip, the first signal pin on the second metal strip, and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the third signal pin on the first metal strip is not conductively connected to the second conductive member; When the second conductive member is in the third conductive position, the first signal pin on the second metal strip and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the first metal strip and the second conductive member are not conductively connected; When the second conductive member is in the fourth conductive position, the third signal pin on the first metal strip, the first signal pin on the second metal strip, and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the first signal pin on the third metal strip is not conductively connected to the second conductive member; When the second conductive member is in the fifth conductive position, the third signal pin on the first metal strip and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the second metal strip and the second conductive member are not conductively connected; When the second conductive member is in the sixth conductive position, the third signal pin on the first metal strip, the fourth signal pin on the second metal strip, and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the first signal pin on the third metal strip is not conductively connected to the second conductive member; When the second conductive member is in the seventh conductive position, the third signal pin on the first metal strip and the fourth signal pin on the second metal strip are conductively connected via the second conductive member, and the third metal strip is not conductively connected to the second conductive member; When the second conductive member is in the eighth conductive position, the third signal pin on the first metal strip, the fourth signal pin on the second metal strip, and the first signal pin on the third metal strip are conductively connected via the second conductive member, and the second signal pin on the third metal strip is not conductively connected to the second conductive member; When the second conductive member is in the ninth conductive position, the third signal pin on the first metal strip and the first signal pin of the third metal strip are conductively connected through the second conductive member, and the second metal strip is not conductively connected to the second conductive member.

[0013] Furthermore, the direction of leaving the channel is a first direction; when one end of the first member moves in the first direction within the channel, one end of the connecting rod of the self-holding electromagnet abuts against one end of the first member, causing one end of the connecting rod of the self-holding electromagnet to move along the first direction to enter the channel; the second conductive member slides along the first direction from a first point to a second point on the first surface of the carrier through a first conducting position to an Nth conducting position, and the second conductive member is in a conducting state at any conducting position between the first conducting position and the Nth conducting position on the first surface of the carrier; wherein N is an integer greater than 1; The controller is also used to: When the second conductive member changes from the N-1th conduction position to the Nth conduction position, the self-holding electromagnet is controlled to operate at a specified current for a specified period of time according to the position change signal generated by the linear encoder so that one end of the connecting rod of the self-holding electromagnet presses against one end of the first member to cause the first member to move in a direction away from the channel.

[0014] In a third aspect, an embodiment of the present application provides a method for controlling a padlock, comprising: receiving a first change signal of each conduction position of the actuator of the linear encoder during the process of the actuator moving from the first point to the second point; The on / off state and on / off duration of the self-holding electromagnet are controlled according to the first change signal of each conduction position, so that: during the process in which the first component moves from the end position in the channel to the direction of leaving the channel to the starting position, one end of the connecting rod of the self-holding electromagnet moves in the direction of entering the channel by pressing against one end of the first component to enter the channel; wherein the starting position is located outside the channel and the end position is located inside the channel.

[0015] The control method further includes: Receive a second change signal of each conduction position generated by the linear encoder during the locking process of the padlock; wherein the second change signal is generated when: when the first member moves from the starting position to the end position along the direction of entering the channel, the first member drives the actuator of the linear encoder to move from the second point to the first point along the first direction.

[0016] determining a position variation range of the connecting rod of the self-holding electromagnet moving toward the channel according to the second variation signal of each conduction position; The on / off state and on / off duration of the self-holding electromagnet corresponding to the first change signal of each conducting position within the position change range are determined according to the position change range.

[0017] A padlock, a control system and a control method according to an embodiment of the present application are provided with a channel, a self-holding electromagnet, a lock body and a first piece, through a lock beam formed along a first direction; when the lock beam is inserted into the lock hole and one end of the first piece moves in the direction of leaving the channel in the channel, one end of the connecting rod of the self-holding electromagnet abuts against one end of the first piece, so that one end of the connecting rod of the self-holding electromagnet moves in the direction of entering the channel to enter the channel, so that the padlock is constantly abutted against one end of the first piece by one end of the connecting rod in the locked state, ensuring that at least one of the connecting rod and the first piece can be located in the channel even under the action of external force so that the lock beam is locked in the lock hole, thereby improving the safety of the padlock. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 Schematic diagram of the structure of a padlock.

[0020] Figure 2 for Figure 1 Schematic diagram of the left view structure.

[0021] Figure 3 for Figure 2 Schematic diagram of the structure of the AA section.

[0022] Figure 4 for Figure 3 A partial enlarged view of B.

[0023] Figure 5 Schematic diagram of the internal structure of a padlock.

[0024] Figure 6 for Figure 5 A partial enlarged view of C in the middle.

[0025] Figure 7 This is a structural diagram of the second part.

[0026] Figure 8 This is a schematic diagram of the side structure of the second piece.

[0027] Figure 9 This is a structural diagram of the control system.

[0028] Figure 10 Schematic diagram of the control method.

[0029] Figure 11 This is a schematic diagram of the structure of a linear encoder.

[0030] Figure 12 Schematic diagram of the arrangement structure of the first conductive member on the carrier.

[0031] Figure 13 Schematic diagram of the three-dimensional structure of the second conductive element.

[0032] Figure 14 Schematic diagram of the side structure of the second conductive member.

[0033] Figure 15 Schematic diagram of the structure of a linear encoder according to an embodiment.

[0034] Figure 16 for Figure 15 Schematic diagram of the structure after removing the limiter.

[0035] Figure 17 FIG. 1 is a schematic diagram of the arrangement structure of the first conductive member on the front side of the carrier according to another embodiment.

[0036] Figure 18FIG. 1 is a schematic diagram of the arrangement structure of the first conductive member on the front surface of the carrier according to another embodiment.

[0037] Figure 19 for Figure 18 Schematic diagram of the structure on the back of the carrier. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0039] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0042] Padlocks include pin locks, blade locks, magnetic locks, and smart padlocks. Smart padlocks combine electronic technology and mechanical structure, typically using unlocking methods such as passwords, fingerprints, Bluetooth, and NFC. For example, password smart padlocks unlock by entering the correct password; fingerprint smart padlocks open by recognizing the user's fingerprint. Smart locks offer high security and ease of use.

[0043] However, existing smart padlocks have the problem of insufficient security. When the smart padlock loses power, it cannot be opened. When the smart padlock is in the locked state, the lock beam of the padlock can be easily pulled out of the keyhole by external force, causing safety hazards.

[0044] In order to improve or solve the problem in the related art that the lock beam of the padlock is easily pulled out of the lock hole, which causes a safety hazard, the first aspect of the present application embodiment provides a padlock, referring to Figure 1-8 As shown, it includes a lock body and a lock beam; the lock body is provided with a lock hole; the portion of the lock beam used for inserting the lock hole is provided with a channel along a first direction; the lock body includes a lock body body, a first piece and a self-holding electromagnet; the first piece is provided on the lock body body, and one end of the first piece is used for entering and exiting the channel; the self-holding electromagnet is provided on the lock body body, and one end of the connecting rod of the self-holding electromagnet is used for entering and exiting the channel, and when the lock beam is inserted into the lock hole and one end of the first piece moves in the direction of leaving the channel in the channel, one end of the connecting rod of the self-holding electromagnet presses against one end of the first piece to make one end of the connecting rod of the self-holding electromagnet move in the direction of entering the channel to enter the channel.

[0045] See Figure 1-4 As shown, the padlock includes a lock beam 01 and a lock body 02; the portion of the lock beam 01 for inserting into the lock hole is the first portion 013 of the lock beam 01, which is used to insert into the lock hole. The lock body has a lock body 024, a first piece 04 and a self-holding electromagnet 05 inside; the first direction can be Figure 3 and Figure 4 In the X direction, the lower end of the first part 013 is provided with a channel 011 along the X direction.

[0046] Optionally, the self-holding electromagnet is a bidirectional self-holding electromagnet.

[0047] It can be understood that a bidirectional self-holding electromagnet can move an iron core to a specified position and hold it there when current is applied in a specified direction, and maintains this position even after power is removed. External magnets and an iron casing form a closed magnetic channel. An internal movable iron core can move left or right. When power is removed, the iron core moves left or right to the specified position, where it is attracted by the magnetic force generated by the iron casing and magnets, locking it at the beginning and end of its travel. The electromagnet has a dual coil structure that wraps around the outside of the iron core. When current is applied in a specified direction, the coils generate a new magnetic flux, disrupting the core's current steady state and causing it to move in the specified direction and position.

[0048] The connecting rod 06 of the self-holding electromagnet 05 can reciprocate along the X direction under the magnetic field of the self-holding electromagnet. The first end 07 of the connecting rod 06 of the self-holding electromagnet is used to enter and exit the channel 011; the second end 08 of the first member 04 is used to enter and exit the channel 011.

[0049] When the padlock is locked, after the first portion 013 of the lock beam 01 is inserted into the lock hole, the second end 08 of the left end of the first piece 04 presses against the first end 07 of the right end of the connecting rod 06 along the X direction toward the direction of entering the channel 011, and moves toward the left along the X direction, that is, toward the direction of leaving the channel 011, so that the first end 07 of the right end of the connecting rod 06 can be located inside or outside the channel 011.

[0050] At this time, when the first piece 04 moves toward the right along the X direction, that is, moves in the direction away from the channel 011, the first end 07 of the right end of the connecting rod 06 moves toward the second end 08, that is, moves toward the channel 011 into the channel 011 until it is pressed against the second end 08 of the left end of the first piece 04, so that the second end 08 moves toward the right along the X direction while being pressed by the first end 07.

[0051] In this way, when the padlock is in the locked state, even if the first piece 04 moves toward the right along the X direction and disengages from the channel 011, the connecting rod 06 is still present in the channel 011 to ensure that the first portion 013 of the lock beam 01 is in the locked state in the lock hole; even if the first end 07 of the right end of the connecting rod 06 moves toward the left along the X direction and disengages from the channel 011, the first piece 04 is still present in the channel to ensure that the first portion 013 of the lock beam 01 is in the locked state in the lock hole. Therefore, no matter how the first piece 04 is pressed or how it moves along the X direction under the action of external force, the padlock can remain in the locked state.

[0052] Thus, the embodiment of the present application uses the channel opened along the first direction by the lock beam, the self-holding electromagnet, the lock body and the first piece; when the lock beam is inserted into the lock hole and one end of the first piece moves in the direction of leaving the channel in the channel, one end of the connecting rod of the self-holding electromagnet presses against one end of the first piece, so that one end of the connecting rod of the self-holding electromagnet moves in the direction of entering the channel to enter the channel, so that the padlock can always press against one end of the first piece through one end of the connecting rod in the locked state, ensuring that even under the action of external force, at least one of the connecting rod and the first piece can be located in the channel so that the lock beam is locked in the lock hole, thereby improving the safety of the padlock.

[0053] When unlocking is required, the self-holding electromagnet is de-energized, and the first member moves leftward along the X-axis to press against the first end 07 of the connecting rod 06, causing the first end 07 of the connecting rod 06 to move leftward and out of the channel 011. After the first end 07 of the connecting rod 06 is outside the channel, the first member 04 moves rightward along the X-axis to separate the channel 011 from the second end 08 of the first member, thereby completing the unlocking. It is understood that at this point, after being separated from the channel 011, the first member 04 can remain within the lock hole or outside the lock hole, which is not a limitation here.

[0054] Furthermore, the padlock also includes a pressing piece, which is connected to the lock body through a first elastic piece and is connected to the other end of the first piece; when one end of the connecting rod of the self-holding electromagnet and one end of the first piece are located in the channel and the self-holding electromagnet loses power, the first piece moves toward the lock body and squeezes the first elastic piece so that one end of the first piece is against one end of the connecting rod of the self-holding electromagnet so that one end of the connecting rod of the self-holding electromagnet moves in a direction of leaving the channel to leave the channel; when one end of the connecting rod of the self-holding electromagnet leaves the channel, the first elastic piece restores its shape so that one end of the first piece moves in a direction of leaving the channel to leave the channel.

[0055] See Figure 1-4 As shown, the right end of the first piece is connected to the pressing piece 03; the pressing piece is connected to the lock body through the elastic piece 09; the elastic piece 09 causes the pressing piece to move repeatedly along the X direction through its own deformation, so that the first piece connected to the pressing piece can move repeatedly in and out of the channel along the X direction; when the first piece moves into the channel and reaches the extreme position on the left side of the channel, the elastic piece can gradually restore the deformation so that the first piece moves to the right to the extreme position on the right side, so that the first piece is out of the channel.

[0056] In order to prevent the right end of the connecting rod 06 from retracting into the self-holding electromagnet in case of accidental impact on the padlock, refer to Figure 5-8 As shown, the padlock also includes a second piece; the second piece is provided with a through hole and an oblique groove; the through hole penetrates the oblique groove along a first direction; a first rod is provided after one end of the connecting rod passes through the through hole; the first rod is engaged with the oblique groove and is movably connected to the oblique groove, so that when the second piece moves in the direction in which the lock beam is inserted into the lock hole, the oblique groove drives the first rod to move so that the connecting rod moves in the direction of entering the channel.

[0057] Optionally, see Figure 7 As shown, the XYZ directions are perpendicular to each other, and the second piece 014 includes a main body, which is provided with a through hole 019, an inclined groove 018 and a through groove 017; the through hole 018 penetrates the inclined groove 018 along the X direction; the inclined groove is provided on the main body along the Y direction; the through groove 017 is provided on the main body along the Z direction, for placing the first part 013 of the lock beam 01, and a first rod 012 is provided on the first end 07 of the connecting rod 06, and the first rod is used to be placed in the inclined groove, so that when the second piece is caused to move upward by an external force, the second piece moves downward under the action of the elastic component 015, and the inclined groove drives the first rod 012 to move downward along the inclined surface of the inclined groove to generate an X-direction force, and under the action of this force, the connecting rod moves along the X direction and enters the channel.

[0058] See Figure 8As shown, the structure of inclined slot 018 for receiving the first rod includes a first transverse surface 020, an inclined surface 021, a vertical surface 022, and a second transverse surface 023. The first transverse surface 020, the inclined surface 021, the vertical surface 022, and the second transverse surface 023 are sequentially connected to form a structure with an opening toward the side closest to the passage. The angle a between inclined surface 021 and the horizontal plane is 45-60 degrees. The upper end of inclined surface 021 is inclined toward the side closest to the passage.

[0059] Optionally, the inclined groove 018 is further provided with a groove 016 for placing the elastic component 015; the upper end of the elastic component 015 is used to connect with the lock body, so that when the second piece moves upward, the elastic component 015 is compressed, and the second piece generates a stronger downward force under the action of its own gravity and the deformation force generated by the elastic component 15. During the downward movement of the second piece, the first rod 012 drives the first end 07 to generate a force to move into the channel 011 under the action of the inclined surface 021, thereby driving the first rod to move more forcefully to make the connecting rod move in the direction of entering the channel.

[0060] Furthermore, the padlock further comprises a linear encoder 010; an actuator of the linear encoder is connected to the first member; the linear encoder comprises a carrier; and the carrier is provided with: A plurality of first conductive members extend along a first direction and are spaced apart from each other along a second direction on one side of the carrier; the first direction and the second direction intersect; at least one first conductive member includes two sub-conductive members; both sub-conductive members extend along the first direction and are spaced apart from each other along the first direction on one side of the carrier; The actuators of linear encoders include: The second conductive member is provided with a plurality of mutually spaced metal contact portions, such that when the plurality of metal contact portions slide in contact with the plurality of first conductive members from a first point to a second point along a first direction, at least two of the plurality of metal contact portions are electrically connected to the plurality of first conductive members via the second conductive member; the two sub-conductive members are spaced between the first point and the second point. Conductivity refers to the formation of a conductive link, which forms a circuit loop when an external circuit is connected to the link.

[0061] See Figure 4 As shown, the actuator of the linear encoder 010, such as the second conductive member, is connected to the pressing member through the elastic member 09; when the pressing member moves toward the left end along the X-direction, the elastic member 09 drives the actuator of the second conductive member to move from the second point to the first point along the X-direction; when the pressing member moves toward the left end along the X-direction and reaches the extreme position at the left end, the elastic member releases its elastic potential energy to cause the pressing member to move toward the right end along the X-direction and reach the extreme position at the right end. At the same time, the elastic member 09 drives the actuator of the linear encoder 010 to move from the first point to the second point along the X-direction.

[0062] In some embodiments, the linear encoder 010 includes a carrier 5, a second conductive member 1, and first conductive members distributed on one surface of the carrier 5. Figure 11 The first direction can be Figure 11 In the X direction, the second direction can be Figure 11 The Y direction of the carrier 5. One side of the carrier 5 can be Figure 11 The side of the middle carrier 5 faces upward.

[0063] The number of the first conductive members is at least 3; optionally, the first conductive member includes an upper conductive member 2, a middle conductive member 3 and a lower conductive member 4; see Figure 12 As shown, the upper conductive member 2, the middle conductive member 3 and the lower conductive member 4 are arranged at intervals along the Y direction on the upward side of the carrier 5 without contacting each other; the upper conductive member 2, the middle conductive member 3 and the lower conductive member 4 are arranged side by side along the Y direction on one side of the carrier 5, and the upper conductive member 2, the middle conductive member 3 and the lower conductive member 4 all extend along the X direction to form a slender structure.

[0064] At least one first conductive member among the upper conductive member 2, the middle conductive member 3 and the lower conductive member 4 includes two sub-conductive members; both sub-conductive members extend along the X direction and are arranged on one side of the carrier at intervals along the X direction; the two sub-conductive members include a first sub-conductive member 91 and a second sub-conductive member 92, and the first sub-conductive member 91 and the second sub-conductive member 92 extend along the X direction; a gap 93 is formed between the two ends of the first sub-conductive member 91 that are close to each other in the X direction.

[0065] The second conductive member 1 drives multiple metal contacts to slide along the X-direction on the surfaces of the upper conductive member 2, the middle conductive member 3, and the lower conductive member 4. When the metal contact at the corresponding position slides to the gap 93, the metal contact at that position is in a non-conductive state with the first conductive member due to the separation of the gap 93. When the metal contact at the corresponding position slides past the gap 93, the metal contact at that position can be conductive with any two or more of the upper conductive member 2, the middle conductive member 3, and the lower conductive member 4 through the second conductive member 1. It is only necessary to ensure that at least two of the multiple metal contacts are conductive through the second conductive member 1 to form a conductive link among the first conductive member, the metal contact, and the second conductive member 1. A conductive link refers to a section of a circuit that can be conductive and can form a complete signal loop with an external circuit.

[0066] Exemplarily, at least two of the upper conductive member 2, the middle conductive member 3, and the lower conductive member 4 are connected via the second conductive member 1. For example, when the second conductive member 1 drives the multiple metal contact parts to slide along the X direction on the surface of the first conductive member, at a certain position, the upper conductive member 2 and the lower conductive member 4 are connected via the second conductive member 1. If a certain signal or a combination of several signals exists in the upper conductive member 2 and the lower conductive member 4 at this time, the signal can be obtained by an external circuit to determine the position to which the multiple metal contact parts slide along the X direction on the surface of the first conductive member at this time. In this way, a one-to-one correspondence can be established between the signal existing in the link when the first conductive member is connected and the position of the multiple metal contact parts of the first conductive member. Through this one-to-one correspondence, a correspondence can be established between the absolute position of the first conductive member moving along the X direction and the signal existing in the link when the first conductive member is connected.

[0067] When the detected object drives the first conductive member to move along the X-direction, the absolute displacement of the detected object in the X-direction and the displacement information of the first conductive member along the X-direction can be kept absolutely synchronized. When a signal is detected in the link when the first conductive member changes from a certain conducting position to a next conducting position, it can be determined that the first conductive member has moved from a certain conducting position to the next conducting position along the X-direction. At this time, it can be determined that the absolute displacement of the detected object in the X-direction is also the displacement from the certain conducting position to the next conducting position.

[0068] Thus, when the detected object and the metal contact part move synchronously in the first direction, the position through which the detected object moves in the first direction can be determined by the conductive position between each metal contact part and the second conductive part. Furthermore, the absolute displacement information of the detected object can be reflected by the above-mentioned linear encoder. Therefore, the linear encoder of the embodiment of the present application can be suitable for linear displacement scenarios to measure the absolute position of the linear displacement object.

[0069] In some embodiments, the structure of the second conductive member 1 is shown in FIG. Figure 13 and Figure 14 As shown, it includes a metal sheet 11 and multiple metal contact parts; each metal contact part includes a contact unit, and each contact unit includes a metal connecting part 13 extending along the X direction; one side of the metal connecting part 13 is connected to the metal sheet 11; the other side of the metal connecting part 13 is connected to the arc-shaped contact part 12, and the arc-shaped contact part 12 is used to make sliding contact with the first conductive member.

[0070] Optionally, each metal contact portion includes two contact units spaced apart along the Y direction; and each first conductive member is in sliding contact via the two contact units.

[0071] The arc-shaped contact portion 12 is used to make sliding contact with the first conductive member, so that the arc-shaped contact portion has good contact performance when sliding along the X direction on the surface of the first conductive member. The arc structure on the arc-shaped contact portion can make the arc-shaped contact portion have stable contact with the surface of the first conductive member during the sliding process.

[0072] Furthermore, at least two or three first conductive members include two sub-conductive members; both sub-conductive members extend along the first direction and are spaced apart along the first direction on the first surface of the carrier; and at least two or three first conductive members are spaced apart at different positions in the first direction.

[0073] Optionally, the structures of the three first conductive members are: including a first sub-conductive member 91 and a second sub-conductive member 92, the first sub-conductive member 91 and the second sub-conductive member 92 extending along the X direction; and a gap 93 is formed between two ends of the first sub-conductive member 91 approaching each other in the X direction.

[0074] Furthermore, when the second conductive member slides from a first point of the first conductive member to a second point of the first conductive member along the first direction, there are multiple positions between the first point and the second point that make the second conductive member in a conducting state.

[0075] See Figure 12 As shown, when the second conductive member 1 slides from left to right along the X direction relative to the first conductive member, the first point can be the leftmost point, that is, the starting point, and the second point can be the rightmost point, that is, the end point; at the first point and the second point, when the second conductive member 1 slides in contact with the first conductive member between the first point and the second point, there are multiple positions that can make the second conductive member be in a conductive state.

[0076] See Figure 12 As shown, the intervals 93 of the first conductive members are at different positions in the X direction. This approach allows the first conductive member to have more conductive positions when sliding along the X direction, at which conductive links can be formed between the first conductive member, the metal contact portion, and the second conductive member 1.

[0077] More conductive positions mean that conductive links with multiple different signals can be formed among the first conductive member, the metal contact portion, and the second conductive member. By detecting the signal of the conductive link at each conductive position, the absolute position of the first conductive member in the X-direction can be accurately corresponded, thereby better and more timely reflecting the position change of the detected object in the X-direction.

[0078] In order to prevent the second conductive member from sliding out of the predetermined area when contacting the first conductive member along the X direction, refer to Figure 15 and Figure 16As shown, the linear encoder also includes: a limit member 6, a limit hole 8 and a sliding member 7; the limit member is slidably connected to the carrier 5 along the first direction; the limit hole is provided in the limit member; the sliding member 7 is provided in the limit hole 8, and the sliding member is provided with a second conductive member 1, and the sliding member 7 is slidably connected to the limit hole 8 along the first direction, so that the second conductive member is driven by the sliding member to slide in contact with multiple first conductive members from the first point to the second point along the first direction in the limit hole.

[0079] See Figure 15 and Figure 16 As shown, the side of the limiting member 6 is fixedly connected to the carrier 5; the limiting hole of the limiting member 6 is a long hole extending along the X direction; the sliding member 7 is fixedly connected to the second conductive member 1 in the long hole, and the sliding member 7 slides left and right in the long hole, thereby driving the second conductive member 1 to slide left and right on the surface of the first conductive member.

[0080] Optionally, the sliding member includes a sliding rod 71 and a sliding sleeve 72, wherein the sliding sleeve 72 is fixedly connected to the second conductive member 1; the sliding rod 71 is connected to the sliding sleeve 72. During use, the detected object is connected to the sliding rod, so that when the detected object moves in the X direction, the detected object drives the sliding sleeve 72, which in turn drives the second conductive member 1 to slide on the first conductive member.

[0081] In some embodiments, the carrier comprises a PCB substrate.

[0082] The multiple first conductive members include multiple metal strips; the multiple metal strips are arranged on the first surface of the PCB substrate at intervals along the second direction of the PCB substrate; the multiple metal strips include a first metal strip, a second metal strip, and a third metal strip; each of the first metal strip, the second metal strip, and the third metal strip includes a first sub-metal strip and a second sub-metal strip; the first sub-metal strip extends along the first direction and the two first sub-metal strips are arranged on the first surface of the PCB substrate at intervals along the first direction; the first metal strip and the third metal strip are respectively arranged on one side and the other side of the second metal strip at intervals along the second direction.

[0083] See Figure 17As shown, the first metal strip includes a first sub-metal strip 201 and a second sub-metal strip 202. The first sub-metal strip 201 and the second sub-metal strip 202 extend along the X-direction, with a first gap 506 between the right end of the first sub-metal strip 201 and the left end of the second sub-metal strip 202. The second metal strip includes a third sub-metal strip 301 and a fourth sub-metal strip 302. The third sub-metal strip 301 and the fourth sub-metal strip 302 extend along the X-direction, with a second gap 507 between the right end of the third sub-metal strip 301 and the left end of the fourth sub-metal strip 302. The third metal strip includes a fifth sub-metal strip 401 and a sixth sub-metal strip 402. The fifth sub-metal strip 401 and the sixth sub-metal strip 402 extend along the X-direction, with a third gap 508 between the right end of the fifth sub-metal strip 401 and the left end of the sixth sub-metal strip 402. The center points of the first gap 506, the second gap 507, and the third gap 508 are not collinear.

[0084] In order to determine the position change of the second conductive member 1 sliding along the X direction and thus determine the displacement information of the detected object based on the signal combination, signal pins are set on the sub-metal strips of each metal strip. Figure 17 As shown, the left end of the first sub-metal strip 201 is provided with a fourth signal pin 504, and the left end of the second sub-metal strip 202 is provided with a third signal pin 503; the left end of the third sub-metal strip 301 is provided with a first signal pin 501, and the right end of the fourth sub-metal strip 302 is provided with a fourth signal pin 504; the left end of the fifth sub-metal strip 401 is provided with a second signal pin 502; and the right end of the sixth sub-metal strip 402 is provided with a first signal pin 505.

[0085] During use, each signal pin can form a loop with the external circuit through the bus. The first signal, second signal, third signal, and fourth signal generated by the controller in the external circuit respectively form a loop through each pin and the conductive links formed by the first conductive member, the metal contact portion, and the second conductive member at different conductive positions. The controller can determine the conductive positions of the second conductive member along the X-direction according to the combination of each signal.

[0086] Furthermore, the direction of leaving the channel is the first direction; when one end of the first member moves in the first direction in the channel, one end of the connecting rod of the self-holding electromagnet presses against one end of the first member so that one end of the connecting rod of the self-holding electromagnet moves along the first direction to enter the channel; the second conductive member slides from the first point to the second point on the first surface of the carrier along the first direction and passes through the first conduction position to the Nth conduction position in sequence, and the second conductive member is in any conduction position from the first conduction position to the Nth conduction position on the first surface of the carrier and is in a conduction state; wherein N is an integer greater than 1.

[0087] In some embodiments, the second conductive member slides along the first direction so that the second conductive member is sequentially in any one of the first conductive position to the seventh conductive position on the first surface of the carrier and is in a conductive state; When the second conductive member is in the first conducting position, the fourth signal pin of the first metal strip, the first signal pin of the second metal strip, and the second signal pin of the third metal strip are electrically connected through the second conductive member; When the second conductive member is in the second conductive position, the first signal pin of the second metal strip and the second signal pin of the third metal strip are conductively connected through the second conductive member, and the first metal strip and the second conductive member are not conductively connected; When the second conductive member is in the third conducting position, the third signal pin on the first metal strip, the first signal pin on the second metal strip, and the second signal pin on the third metal strip are electrically connected via the second conductive member; When the second conductive member is in the fourth conductive position, the third signal pin on the first metal strip and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the second metal strip and the second conductive member are not conductively connected; When the second conductive member is in the fifth conducting position, the third signal pin on the first metal strip, the fourth signal pin on the second metal strip, and the second signal pin on the third metal strip are electrically connected via the second conductive member; When the second conductive member is in the sixth conductive position, the fourth signal pin on the second metal strip and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the first metal strip and the second conductive member are not conductively connected; When the second conductive member is in the seventh conducting position, the third signal pin on the first metal strip, the fourth signal pin on the second metal strip, and the first signal pin on the third metal strip are conducted through the second conductive member.

[0088] The following takes 7 conductive positions as an example to illustrate the signal combinations corresponding to the various conductive positions during the movement of the second conductive member along the X direction, so that the absolute position of the detected object in the X direction can be determined based on the occurrence of each signal combination.

[0089] Specifically, see Figure 17 As shown, the first conducting position to the seventh conducting position correspond to Figure 17 The af position in the figure is a conductive position, that is, at this position, the first conductive member, the metal contact portion and the second conductive member can form a conductive link. When moving from left to right along the X direction, the metal contact portions on the second conductive member 1 move from left to right along the X direction. Figure 17Position a in the diagram sequentially passes through positions b, c, d, e, f, and g. The external circuit can use the signals at each position to determine the position of the second conductive member on the first conductive member, and thus determine the position change and absolute displacement of the detected object connected to the first conductive member.

[0090] In order to further increase the number of conductive positions and more accurately and intuitively reflect the position change and absolute displacement of the detected object, the first conductive member is further improved.

[0091] See Figure 18 As shown, the first metal strip, the second metal strip and the third metal strip are arranged on the first surface of the PCB substrate, that is, the front surface of the PCB substrate.

[0092] The first metal strip includes a seventh sub-metal strip 211 and an eighth sub-metal strip 212 ; the seventh sub-metal strip 211 and the eighth sub-metal strip 212 extend along the X direction, and a fourth gap 516 is formed between the right end of the seventh sub-metal strip 211 and the left end of the eighth sub-metal strip 212 ; The left end of the seventh sub-metal strip 211 is connected to the first metal connecting strip on the back of the PCB substrate through the first via 517; the first metal connecting strip on the back of the PCB substrate is provided with a fourth signal pin s 514; A third signal pin s 513 is provided at the right end of the eighth sub-metal strip 212 .

[0093] The second metal strip includes a ninth sub-metal strip 311 and a tenth sub-metal strip 312 . The ninth sub-metal strip 311 and the tenth sub-metal strip 312 extend along the X-direction. The length of the ninth sub-metal strip 311 and the tenth sub-metal strip 312 in the X-direction is shorter than the length of the seventh sub-metal strip 211 , the eighth sub-metal strip 212 , the eleventh sub-metal strip 411 , or the twelfth sub-metal strip 412 in the X-direction. A fifth gap 519 is defined between the right end of the ninth sub-metal strip 311 and the left end of the tenth sub-metal strip 312 . The ninth sub-metal strip 311 is provided with a second via hole 518 , and the ninth sub-metal strip 311 is connected to the second metal connecting strip on the back of the PCB substrate through the second via hole 518 ; the second metal connecting strip is provided with a first signal pin s 511 ; The tenth sub-metal strip 312 is provided with a third via hole 521 , and the tenth sub-metal strip 312 is connected to the third metal connecting strip on the back of the PCB substrate through the third via hole 521 ; the third metal connecting strip is provided with a fourth signal pin s 514 ; The third metal strip includes an eleventh sub-metal strip 411 and a twelfth sub-metal strip 412. The eleventh and twelfth sub-metal strips 411 and 412 extend along the X-direction, with a sixth gap 520 defined between the right end of the eleventh sub-metal strip 411 and the left end of the twelfth sub-metal strip 412. A second signal pin s 512 is provided at the left end of the eleventh sub-metal strip 411, while a fourth signal pin s 514 is provided at the right end of the twelfth sub-metal strip 412. The center points of the fourth gap 516, the fifth gap 519, and the sixth gap 520 are not aligned.

[0094] Furthermore, the second conductive member slides along the first direction so that the second conductive member is sequentially located at any one of the first conducting position to the ninth conducting position on the first surface of the carrier and is in a conducting state; When the second conductive member is in the first conductive position, the fourth signal pin on the first metal strip and the second signal pin on the third metal strip are conductively connected through the second conductive member, and the second metal strip and the second conductive member are not conductively connected; When the second conductive member is in the second conductive position, the fourth signal pin on the first metal strip, the first signal pin on the second metal strip, and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the third signal pin on the first metal strip is not conductively connected to the second conductive member; When the second conductive member is in the third conductive position, the first signal pin on the second metal strip and the second signal pin on the third metal strip are conductively connected through the second conductive member, and the first metal strip and the second conductive member are not conductively connected; When the second conductive member is in the fourth conductive position, the third signal pin on the first metal strip, the first signal pin on the second metal strip, and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the first signal pin on the third metal strip is not conductively connected to the second conductive member. When the second conductive member is in the fifth conductive position, the third signal pin on the first metal strip and the second signal pin on the third metal strip are conductively connected through the second conductive member, and the second metal strip and the second conductive member are not conductively connected; When the second conductive member is in the sixth conductive position, the third signal pin on the first metal strip, the fourth signal pin on the second metal strip, and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the first signal pin on the third metal strip is not conductively connected to the second conductive member; When the second conductive member is in the seventh conductive position, the third signal pin on the first metal strip and the fourth signal pin on the second metal strip are conductively connected through the second conductive member, and the third metal strip is not conductively connected to the second conductive member; When the second conductive member is in the eighth conductive position, the third signal pin on the first metal strip, the fourth signal pin on the second metal strip, and the first signal pin on the third metal strip are conductively connected via the second conductive member, and the second signal pin on the third metal strip is not conductively connected to the second conductive member. When the second conductive member is in the ninth conductive position, the third signal pin on the first metal strip and the first signal pin of the third metal strip are conductively connected through the second conductive member, and the second metal strip and the second conductive member are not conductively connected.

[0095] See Figure 18 and Figure 19 As shown, the first conducting position to the ninth conducting position correspond to Figure 18 The ai position in the figure is the conducting position, that is, at this position, the first conductive member, the metal contact portion and the second conductive member can form a conducting link. When moving from left to right along the X direction, the metal contact portions on the second conductive member 1 move from left to right along the X direction. Figure 17 Position a in the diagram sequentially passes through positions b, c, d, e, f, g, h, and finally i. The external circuit can use the signals from each conductive position to determine the position of the second conductive member on the first conductive member, and thus determine the position change and absolute displacement of the detected object connected to the first conductive member.

[0096] In a second aspect, the present application provides a control system for a padlock, see Figure 9 As shown, the control system includes: A linear encoder is provided on the lock body; an actuator of the linear encoder is connected to the pressing member so that when the pressing member reciprocates in a first direction, the actuator of the linear encoder and the pressing member move synchronously in the first direction; Power supply, used to connect with linear encoder, self-holding electromagnet and controller; And the controller: Used to connect with self-holding electromagnet and linear encoder respectively; It is used to control the on and off state and the on and off duration of the self-holding electromagnet according to the change signal generated by the conduction position change of the linear encoder 010, so that when the lock beam is inserted into the lock hole, one end of the first piece is located in the channel and one end of the first piece moves in the direction of leaving the channel, one end of the connecting rod of the self-holding electromagnet presses against one end of the first piece to make one end of the connecting rod of the self-holding electromagnet move in the direction of entering the channel to enter the channel.

[0097] See Figure 9 As shown, the controller can be a processor or a component including a processor. The controller communicates with the linear encoder and the self-holding electromagnet. The controller is connected to the power supply and is connected to the power supply and the self-holding electromagnet through the current control module, thereby controlling the on / off state and on / off duration of the self-holding electromagnet.

[0098] The padlock of the present application includes three states: unlocked state, locked state and unlocked state.

[0099] The unlocked state refers to the state in which the first portion 013 of the lock beam is not inserted into the lock hole. The locked state refers to the state in which the first portion 013 is inserted into the lock hole and at least one of the connecting rod 06 and the first member 04 is located in the channel of the first portion 013, with the first end 07 of the connecting rod 06 abutting the second end 08 of the first member 04. The unlocked state refers to the state in which the first portion 013 is inserted into the lock hole and neither the connecting rod 06 nor the first member 04 is located in the channel of the first portion 013.

[0100] When the padlock transitions from an unlocked state to a locked state, the pressing member can be manually operated to press the first member into the channel, causing the second end 08 of the first member to abut against the first end 07 and push the first end 07 out of the channel. At this point, the pressing member is connected to the actuator of the linear encoder 010, such as the second conductive member, via the elastic member 09. The pressing member then drives the actuator from the second point to the first point. The first and second points can include multiple conductive positions, such as position af, where f is closer to the second point and a is closer to the first point. When the padlock transitions from an unlocked state to a locked state, the actuator of the linear encoder 010 moves from the second point to the first point, i.e., the conductive position changes from f to a. Optionally, the self-holding electromagnet then moves between conductive positions af toward the channel, maintaining the first end 07 in contact with the second end 08, thereby locking the first portion 013. After the padlock is locked, regardless of how the pressing member is operated, the first end 07 remains in contact with the second end 08, thereby locking the lock beam.

[0101] When the padlock is in the locked state, the controller will control the on and off state and the on and off duration of the self-holding electromagnet according to the change signal generated by the conduction position change of the linear encoder 010, so that when the lock beam is inserted into the lock hole, one end of the first piece is located in the channel and one end of the first piece moves in the direction of leaving the channel, one end of the connecting rod of the self-holding electromagnet presses against one end of the first piece to make one end of the connecting rod of the self-holding electromagnet move in the direction of entering the channel to enter the channel.

[0102] Optionally, the controller is further configured to: When the second conductive member changes from the N-1th conduction position to the Nth conduction position, the self-holding electromagnet is controlled to operate with a specified current for a specified period of time according to the position change signal generated by the linear encoder so that one end of the connecting rod of the self-holding electromagnet presses against one end of the first member to cause the first member to move in the direction of leaving the channel.

[0103] For example, let N be 7. Figure 17As shown, the specified current and the specified time duration corresponding to the change in the conducting position of the second conductive member are shown in Table 1 below.

[0104] Table 1

[0105] The conduction position g can be used as the conduction position or the backup conduction position. Abnormal refers to a position outside the ag position; normal refers to any position within the ag position.

[0106] The self-holding electromagnet operates at the specified current and duration corresponding to the position change in each row of Table 1 above, corresponding to the action of the padlock in the locked state: the connecting rod enters channel 011 from the left along the X-axis, pushing the first component away from channel 011. When the second conductive element of the linear encoder changes from the pre-change conductive position to the post-change conductive position, one end of the self-holding electromagnet's connecting rod abuts one end of the first component, causing the first component to move away from the channel. For example, when the second conductive element changes from pre-change conductive position a to post-change conductive position b, operating the self-holding electromagnet at a current of 2.65A for 3 milliseconds can cause one end of the self-holding electromagnet's connecting rod to abut one end of the first component, causing the first component to move away from the channel. Thus, the above-described method ensures that any change in the conductive position of the second conductive element within the af position causes one end of the self-holding electromagnet's connecting rod to abut one end of the first component, causing the first component to move away from the channel. This ensures that the self-holding electromagnet's connecting rod abuts one end of the first component during any conductive position change.

[0107] During the process of changing from the locked state to the unlocked state, the self-holding electromagnet remains de-energized, and the pressing member is operated so that the first member presses the first end of the connecting rod out of the channel. Then, the first member is also pressed out of the channel under the action of the elastic member 09, thereby completing the unlocking. Therefore, the padlock of the present application will not become locked and unable to be opened in the event of power failure or circuit abnormality.

[0108] In a third aspect, the present invention provides a method for controlling a padlock, which can use the controller in the above control system as the execution subject, see Figure 10 Shown, including: S1. Receive a first change signal of each conduction position during movement of the linear encoder actuator from a first point to a second point; S2. Control the on / off state and on / off duration of the self-holding electromagnet according to the first change signal of each conduction position, so that: during the process of the first piece moving from the end position in the channel to the direction of leaving the channel to the starting position, one end of the connecting rod of the self-holding electromagnet moves in the direction of entering the channel by pressing against one end of the first piece to enter the channel; wherein the starting position is located outside the channel and the end position is located inside the channel.

[0109] The further control method also includes: S01. Receiving the second change signal of each conduction position generated by the linear encoder during the locking process of the padlock; wherein the second change signal is generated when: when the first piece moves from the starting position to the end position along the direction of entering the channel, the first piece drives the actuator of the linear encoder to move from the second point to the first point along the first direction.

[0110] S02. Determine the position range of the link of the self-holding electromagnet to the channel movement according to the second change signal of each conduction position; S03. Determine the on / off state and on / off duration of the self-holding electromagnet corresponding to the first change signal of each conduction position within the position change range according to the position change range.

[0111] The functions and effects of the technical features in this technical solution that are similar or related to the aforementioned technical solution are similar to those of the aforementioned technical solution. The inventive concept and beneficial effects of this technical solution are similar to those of the aforementioned technical solution, and are not elaborated here.

[0112] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A padlock, characterized in that: The invention comprises a lock body and a lock beam; the lock body is provided with a lock hole; a portion of the lock beam for inserting into the lock hole is provided with a channel along a first direction; the lock body comprises: Lock body; The first piece is provided on the lock body, and one end of the piece is used for entering and exiting the passage; And a self-holding electromagnet is provided on the lock body, one end of the connecting rod of the self-holding electromagnet is used to enter and exit the channel, so that when the lock beam is inserted into the lock hole and one end of the first piece moves in the direction of leaving the channel in the channel, one end of the connecting rod of the self-holding electromagnet presses against one end of the first piece to make one end of the connecting rod of the self-holding electromagnet move in the direction of entering the channel to enter the channel.

2. The padlock according to claim 1, characterized in that: Also includes: A pressing member, the pressing member is connected to the lock body through a first elastic member and is connected to the other end of the first member; When one end of the connecting rod of the self-holding electromagnet and one end of the first member are located in the channel and the self-holding electromagnet loses power, the first member moves toward the lock body and squeezes the first elastic member, so that one end of the first member abuts against one end of the connecting rod of the self-holding electromagnet to move one end of the connecting rod of the self-holding electromagnet in a direction away from the channel to leave the channel; when one end of the connecting rod of the self-holding electromagnet leaves the channel, the first elastic member restores its shape to make one end of the first member move in a direction away from the channel to leave the channel.

3. The padlock according to claim 1, characterized in that: It also includes a second piece; the second piece is provided with a through hole and an oblique groove; the through hole passes through the oblique groove along a first direction; a first rod is provided after one end of the connecting rod passes through the through hole; the first rod is stuck in the oblique groove and movably connected to the oblique groove, so that when the second piece moves in the direction of the lock beam being inserted into the lock hole, the oblique groove drives the first rod to move so that the connecting rod moves in the direction of entering the channel.

4. The padlock according to any one of claims 1 to 3, characterized in that: The padlock further comprises a linear encoder; an actuator of the linear encoder is connected to the first member; the linear encoder comprises a carrier; the carrier is provided with: A plurality of first conductive members extending along a first direction and spaced apart from each other along a second direction are provided on one side of the carrier; the first direction and the second direction intersect; at least one first conductive member includes two sub-conductive members; both of the two sub-conductive members extend along the first direction and are spaced apart from each other along the first direction on one side of the carrier; The actuator of the linear encoder includes: The second conductive member is provided with a plurality of mutually spaced metal contact portions, so that when the plurality of metal contact portions slide in contact with the plurality of first conductive members from a first point to a second point along the first direction, at least two of the plurality of metal contact portions are electrically connected to the plurality of first conductive members through the second conductive member; the interval between the two sub-conductive members is between the first point and the second point.

5. A control system for a padlock according to any one of claims 1 to 4, characterized in that: The control system includes: a linear encoder disposed on the lock body; an actuator of the linear encoder is connected to the pressing member, so that when the pressing member reciprocates in the first direction, the actuator of the linear encoder and the pressing member move synchronously in the first direction; A power supply, used to connect to the linear encoder, the self-holding electromagnet and the controller; And the controller: Used to be connected to the self-holding electromagnet and the linear encoder respectively; It is used to control the on and off state and the on and off duration of the self-holding electromagnet according to the change signal of the conduction position of the linear encoder, so that when the lock beam is inserted into the lock hole, one end of the first piece is located in the channel and one end of the first piece moves in the direction of leaving the channel, one end of the connecting rod of the self-holding electromagnet presses against one end of the first piece to make one end of the connecting rod of the self-holding electromagnet move in the direction of entering the channel to enter the channel.

6. The control system according to claim 5, characterized in that: At least two or three first conductive members include two sub-conductive members; the two sub-conductive members extend along the first direction and are spaced apart along the first direction on the first surface of the carrier; the spacings between the at least two or three first conductive members are different from each other in the first direction; And / or, the carrier includes a PCB substrate; The plurality of first conductive elements include: a plurality of metal strips spaced apart and arranged on the first surface of the PCB substrate along the second direction of the PCB substrate; The plurality of metal strips include a first metal strip, a second metal strip, and a third metal strip; each of the first metal strip, the second metal strip, and the third metal strip includes a first sub-metal strip and a second sub-metal strip; the first sub-metal strip extends along the first direction, and two first sub-metal strips are spaced apart along the first direction on the first surface of the PCB substrate; The first metal strip and the third metal strip are respectively spaced apart on one side and the other side of the second metal strip along the second direction; The first sub-metal strip of the first metal strip is provided with a fourth signal pin, and the second sub-metal strip of the first metal strip is provided with a third signal pin; the first sub-metal strip of the second metal strip is provided with a first signal pin, and the second sub-metal strip of the second metal strip is provided with a fourth signal pin; the first sub-metal strip of the third metal strip is provided with a second signal pin, and the second sub-metal strip of the third metal strip is provided with a first signal pin.

7. The control system according to claim 6, characterized in that: The second conductive member slides along the first direction so that the second conductive member is in any one of the first conducting position to the seventh conducting position on the first surface of the carrier and is in a conducting state; When the second conductive member is in the first conducting position, the fourth signal pin of the first metal strip, the first signal pin of the second metal strip, and the second signal pin of the third metal strip are electrically connected through the second conductive member; When the second conductive member is in the second conductive position, the first signal pin of the second metal strip and the second signal pin of the third metal strip are conductively connected via the second conductive member, and the first metal strip and the second conductive member are not conductively connected; When the second conductive member is in the third conducting position, the third signal pin on the first metal strip, the first signal pin on the second metal strip, and the second signal pin on the third metal strip are electrically connected via the second conductive member; When the second conductive member is in the fourth conductive position, the third signal pin on the first metal strip and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the second metal strip and the second conductive member are not conductively connected; When the second conductive member is in the fifth conducting position, the third signal pin on the first metal strip, the fourth signal pin on the second metal strip, and the second signal pin on the third metal strip are electrically connected via the second conductive member; When the second conductive member is in the sixth conductive position, the fourth signal pin on the second metal strip and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the first metal strip and the second conductive member are not conductively connected; When the second conductive member is in the seventh conducting position, the third signal pin on the first metal strip, the fourth signal pin on the second metal strip, and the first signal pin on the third metal strip are electrically connected via the second conductive member; or, The second conductive member slides along the first direction so that the second conductive member is in any one of the first conducting position to the ninth conducting position on the first surface of the carrier and is in a conducting state; When the second conductive member is in the first conductive position, the fourth signal pin on the first metal strip and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the second metal strip and the second conductive member are not conductively connected; When the second conductive member is in the second conductive position, the fourth signal pin on the first metal strip, the first signal pin on the second metal strip, and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the third signal pin on the first metal strip is not conductively connected to the second conductive member; When the second conductive member is in the third conductive position, the first signal pin on the second metal strip and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the first metal strip and the second conductive member are not conductively connected; When the second conductive member is in the fourth conductive position, the third signal pin on the first metal strip, the first signal pin on the second metal strip, and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the first signal pin on the third metal strip is not conductively connected to the second conductive member; When the second conductive member is in the fifth conductive position, the third signal pin on the first metal strip and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the second metal strip and the second conductive member are not conductively connected; When the second conductive member is in the sixth conductive position, the third signal pin on the first metal strip, the fourth signal pin on the second metal strip, and the second signal pin on the third metal strip are conductively connected via the second conductive member, and the first signal pin on the third metal strip is not conductively connected to the second conductive member; When the second conductive member is in the seventh conductive position, the third signal pin on the first metal strip and the fourth signal pin on the second metal strip are conductively connected via the second conductive member, and the third metal strip is not conductively connected to the second conductive member; When the second conductive member is in the eighth conductive position, the third signal pin on the first metal strip, the fourth signal pin on the second metal strip, and the first signal pin on the third metal strip are conductively connected via the second conductive member, and the second signal pin on the third metal strip is not conductively connected to the second conductive member; When the second conductive member is in the ninth conductive position, the third signal pin on the first metal strip and the first signal pin of the third metal strip are conductively connected through the second conductive member, and the second metal strip is not conductively connected to the second conductive member.

8. The control system according to claim 7, characterized in that: The direction of leaving the channel is a first direction; when one end of the first member moves in the first direction within the channel, one end of the connecting rod of the self-holding electromagnet abuts against one end of the first member so that the one end of the connecting rod of the self-holding electromagnet moves along the first direction to enter the channel; The second conductive member slides along a first direction from a first point to a second point on the first surface of the carrier through a first conducting position to an Nth conducting position, and the second conductive member is in a conducting state at any conducting position between the first conducting position and the Nth conducting position on the first surface of the carrier; wherein N is an integer greater than 1; The controller is also used to: When the second conductive member changes from the N-1th conduction position to the Nth conduction position, the self-holding electromagnet is controlled to operate at a specified current for a specified period of time according to the position change signal generated by the linear encoder so that one end of the connecting rod of the self-holding electromagnet presses against one end of the first member to cause the first member to move in a direction away from the channel.

9. A method for controlling a padlock according to claim 4, characterized in that: include: receiving a first change signal of each conduction position of the actuator of the linear encoder during the process of the actuator moving from the first point to the second point; The on / off state and on / off duration of the self-holding electromagnet are controlled according to the first change signal of each conduction position, so that: during the process in which the first component moves from the end position in the channel to the direction of leaving the channel to the starting position, one end of the connecting rod of the self-holding electromagnet moves in the direction of entering the channel by pressing against one end of the first component to enter the channel; wherein the starting position is located outside the channel and the end position is located inside the channel.

10. The padlock control method according to claim 9, characterized in that: Also includes: receiving a second change signal of each conduction position generated by the linear encoder during the locking process of the padlock; wherein the second change signal is generated when: when the first member moves from the starting position to the end position in the direction of entering the channel, the first member drives the actuator of the linear encoder to move from the second point to the first point in the first direction; determining a position variation range of the connecting rod of the self-holding electromagnet moving toward the channel according to the second variation signal of each conduction position; The on / off state and on / off duration of the self-holding electromagnet corresponding to the first change signal of each conducting position within the position change range are determined according to the position change range.

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