A double-ended unlocking lock and lock system

Abstract

The application provides a double-end unlocking lock and a lock system, which comprises a first lock body provided with a first inner hole, a second lock body provided with a second inner hole, a first limiting piece, a second limiting piece and a lock beam; the lock beam is provided with a groove at one end, and the end is inserted into the first inner hole; the first limiting piece is partially located in the groove and partially clamped in the first lock body; the first lock body is provided with a first unlocking mechanism; the other end of the lock beam is provided with a clamping head and is inserted into the second inner hole and is threadedly connected with the second inner hole; the second limiting piece abuts against the clamping head; the second lock body is provided with a second unlocking mechanism; the unlocking keys of the first unlocking mechanism and the second unlocking mechanism are different; and the outer diameter of the lock beam is smaller than the inner diameter of the lock buckle ring. The lock has two sets of independent unlocking mechanisms, is compact and small in structure, and can avoid the situation that the lock needs to be forcibly unlocked when only one set of unlocking mechanism is invalid or the only matching key is lost.

Description

Technical Field

[0001] This invention relates to the field of lock technology, and in particular to a double-headed unlocking lock and lock system. Background Technology

[0002] Currently, most padlocks on the market have a curved shackle with both ends inserted into the same lock body. Due to the size and internal structure limitations of the lock body, each lock usually has only one unlocking mechanism and only one key. When multiple people use it, multiple copies of the same key are made.

[0003] If the unlocking mechanism of this type of padlock is damaged or malfunctions, or if the unique key is lost, it can only be unlocked by forcibly removing the lock, which will inevitably damage the door or the padlock. Locks on the market that offer both key and electronic combination unlocking methods often share a single unlocking mechanism; if this mechanism is damaged or malfunctions, the same predicament will still be faced. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and propose a double-headed unlocking lock that integrates two independent unlocking structures into one unit. This solves the problem that existing padlocks, which only have one unlocking structure, require forced unlocking once the unlocking structure fails or the unique matching key is lost.

[0005] The present invention provides a double-headed unlocking lock, comprising a first lock body having a first inner hole, a second lock body having a second inner hole, a first limiting member, a second limiting member, and a lock beam;

[0006] One end of the lock beam is provided with a groove, and this end is inserted into the first inner hole; a part of the first limiting member is located in the groove, and the other part is locked in the first lock body to prevent the lock beam from coming out of the first inner hole; the first lock body is provided with a first unlocking mechanism for controlling the first limiting member to move out of or into the groove;

[0007] The other end of the lock beam is provided with a locking head, and this end is inserted into the second inner hole and threadedly connected to the second inner hole; the second limiting member abuts against the locking head to restrict the lock beam from rotating and disengaging from the second inner hole; the second lock body is provided with a second unlocking mechanism for controlling the movement of the second limiting member to offset or abut against the locking head;

[0008] The unlocking key for the first unlocking mechanism is different from that for the second unlocking mechanism.

[0009] Preferably, both the first unlocking mechanism and the second unlocking mechanism are mechanical lock mechanisms; or,

[0010] All are electronic lock mechanisms; or,

[0011] One is a mechanical lock mechanism, and the other is an electronic lock mechanism.

[0012] More preferably, the first unlocking mechanism is a mechanical lock mechanism, including a lock cylinder and a key, wherein the lock cylinder includes a lock shaft and a locking pin disposed along the axial direction of the lock shaft;

[0013] The first lock body is provided with a third inner hole, which includes a connecting part, a rotating part, and a plugging part; the lock cylinder is located in the plugging part and is in clearance fit with the first lock body; the connecting part faces the end of the locking pin and mates with the groove on the lock beam to make the third inner hole and the groove communicate; the rotating part is formed by the space formed by the locking pin rotating about the lock shaft axis;

[0014] The first limiting member is a sphere and is located within the connecting portion and the groove;

[0015] The central surface of the lock shaft is provided with a keyhole that matches the key. The first lock body is also provided with a plurality of spring holes along the central surface of the lock shaft. Each spring hole is perpendicular to the axial direction of the lock shaft and leads to the keyhole. The spring holes are arranged along the axial direction of the lock shaft and at intervals corresponding to the tooth spacing of the key.

[0016] Each of the aforementioned spring holes is provided with a spring, an upper pin, and a lower pin in sequence. The spring is located at the end away from the keyhole, and the end of the spring away from the keyhole is connected to the first lock body, while the other end is connected to the upper pin. The lower pin abuts against the upper pin.

[0017] More preferably, the second unlocking mechanism is an electronic lock mechanism, and the second limiting member is a magnetic block;

[0018] The second lock body is equipped with an antenna, a control module and an electromagnet. The antenna is electrically connected to the control module. The two ends of the conductive coil wound on the outer surface of the electromagnet are electrically connected to the control module. The antenna is used to receive control signals and generate current to drive the control module. The control module is used to analyze control signals and issue execution commands.

[0019] The second lock body is also provided with a fourth inner hole, the magnet is located in the fourth inner hole and is slidably connected to one end of the fourth inner hole, and this end of the fourth inner hole is connected to the second inner hole so that the magnet abuts against the latch; the other end of the fourth inner hole is provided with a magnetic drive unit facing the end of the electromagnet, and an unlocking space is reserved between the magnetic drive unit and the magnet for the magnet to move; the magnetic drive unit is used to cooperate with the electromagnet to attract or repel the magnet.

[0020] More preferably, the magnetic drive unit includes a magnetic guide block and a cylindrical magnet, wherein the magnetic guide block has a cylindrical hole, and the cylindrical magnet is located in the cylindrical hole and is in clearance fit with the magnetic guide block.

[0021] More preferably, the magnetic block is further provided with magnetoresistive elements on both sides of the cylindrical hole, and the magnetoresistive elements on both sides are perpendicular to the N-S pole connection line of the magnet block.

[0022] More preferably, the columnar magnet is composed of a magnetic resistive material covering the upper and lower surfaces of the magnet strip.

[0023] Another object of the present invention is to provide a locking system comprising a plurality of locks, each lock being used for a corresponding different location or item, each lock being a double-headed unlocking lock as described above, the first unlocking mechanism of each lock being identical, while the second unlocking mechanism of each lock being different; or,

[0024] The first unlocking mechanism of each lock is different, while the second unlocking mechanism of each lock is the same.

[0025] As can be seen from the above technical solutions, the present invention has the following advantages:

[0026] This invention provides a dual-head unlocking lock. By setting independent first and second lock bodies at both ends of the lock beam, a first unlocking mechanism is installed in the first lock body, and a second unlocking mechanism is installed in the second lock body. This gives the lock two independent unlocking mechanisms, providing the unlocker with two backup unlocking methods. Even if one unlocking mechanism fails or the unlocking key is lost, the other unlocking mechanism can still unlock the lock. This significantly reduces the probability of forced unlocking due to a failed unlocking mechanism or a lost key, avoiding losses caused by forced unlocking. The lock structure is compact and small, without excessively increasing the lock size due to the addition of an unlocking mechanism, making it convenient for daily use. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram illustrating a usage scenario of a dual-head unlocking lock provided in Embodiment 1 of the present invention;

[0029] Figure 2 This is a three-dimensional schematic diagram of a double-headed unlocking lock provided in Embodiment 1 of the present invention;

[0030] Figure 3 This is a cross-sectional view of the first lock body and the first unlocking mechanism of a double-headed unlocking lock according to Embodiment 1 of the present invention;

[0031] Figure 4 This is a three-dimensional schematic diagram of the second lock body and lock beam of a double-headed unlocking lock according to Embodiment 1 of the present invention;

[0032] Figure 5 This is a cross-sectional view of the second lock body and the second unlocking mechanism of a double-headed unlocking lock according to Embodiment 1 of the present invention;

[0033] Figure 6 for Figure 3 AA section view in the middle;

[0034] Figure 7 for Figure 3 A cross-sectional view AA when the locking pin is located in the rotating part;

[0035] Figure 8 for Figure 3 View B in the middle;

[0036] Figure 9 This is a schematic diagram of the locked state of the second unlocking mechanism of a double-headed unlocking lock according to Embodiment 1 of the present invention;

[0037] Figure 10 This is a schematic diagram of the unlocking state of the second unlocking mechanism of a double-headed unlocking lock according to Embodiment 1 of the present invention;

[0038] The reference numerals in the attached drawings are as follows: First lock body 1, First limiting member 101, Second lock body 2, Lock beam 3, First inner hole 4, Second inner hole 5, Groove 6, Snap head 7, Locking ring 8, Lock cylinder 9, Key 10, Lock shaft 11, Snap pin 12, Third inner hole 13, Connecting part 14, Rotating part 15, Insertion part 16, Keyhole 17, Spring hole 18, Spring 19, Upper pin 20, Lower pin 21, Magnet block 22, Antenna 23, Control module 24, Electromagnet 25, Fourth inner hole 26, Magnetic guide block 27, Columnar magnet 28, Columnar hole 29, Magnetic resistive body 30, Unlocking space 31. Detailed Implementation

[0039] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0040] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0041] Unless otherwise expressly specified and limited, the terms "connection," "fixed," and "set" 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 mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0042] 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 technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, unless otherwise expressly specified.

[0043] Embodiment 1 of the present invention provides a double-headed unlocking lock, such as Figures 1-4 As shown, it includes a first lock body 1, a second lock body 2, a first limiting member 101, a second limiting member and a lock beam 3. The first lock body 1 is provided with a first inner hole 4 and the second lock body 2 is provided with a second inner hole 5.

[0044] One end of the locking beam 3 is provided with a groove 6, and this end is inserted into the first inner hole 4; a part of the first limiting member 101 is located in the groove 6, and the other part is locked in the first lock body 1 to restrict the locking beam 3 from coming out of the first inner hole 4; the first lock body 1 is provided with a first unlocking mechanism for controlling the first limiting member 101 to move out of or into the groove 6.

[0045] The other end of the locking beam 3 is provided with a locking head 7, and this end is inserted into the second inner hole 5 and threadedly connected to the second inner hole 5; the aforementioned second limiting member abuts against the locking head 7 to restrict the locking beam 3 from rotating and disengaging from the second inner hole 5; the second lock body 2 is provided with a second unlocking mechanism for controlling the movement of the second limiting member to offset or abut against the locking head 7.

[0046] The unlocking key for the first unlocking mechanism is different from that for the second unlocking mechanism.

[0047] It should be noted that when using the double-headed unlocking lock provided in Embodiment 1 of the present invention, the outer diameter of the lock beam 3 should be smaller than the inner diameter of the latch ring 8 fixed on the door leaf to ensure that the lock beam 3 can pass through the latch ring 8, and the outer diameter of the first lock body 1 and the outer diameter of the second lock body 2 should be larger than the inner diameter of the latch ring 8 to ensure that the first lock body 1 and the second lock body 2 can pass through the latch ring 8 without achieving the purpose of locking.

[0048] The first embodiment of this invention provides a double-headed unlocking lock. When locked, after the first limiting member 101 is moved out of the groove 6 by the first unlocking mechanism, the end of the lock beam 3 can be disengaged from the first inner hole 4, thereby disengaging the first lock body 1 from the lock beam 3 and opening the lock. Then, one end of the lock beam 3 is passed through the latch ring 8 on the door leaf, and then that end of the lock beam 3 is inserted back into the first inner hole 4. The first limiting member 101 is moved into the groove 6 by the first unlocking mechanism, and the first lock body 1 is locked in place by the first limiting member 101. Locking is achieved by locking the end of the locking beam 3; alternatively, the second unlocking mechanism can be used to disengage the second limiting member from the latch 7, and then the locking beam 3 can be rotated to disengage from the second inner hole 5, thereby disengaging the second lock body 2 from the locking beam 3 and opening the lock. Then, one end of the locking beam 3 is passed through the latch ring 8 on the door leaf, and then that end of the locking beam 3 is rotated in the opposite direction to insert into the second inner hole 5. The second unlocking mechanism moves the second limiting member to abut against the latch 7, and the second locking member locks the second lock body 2 at the end of the locking beam 3, thus completing the locking. Similarly, during unlocking, either unlocking mechanism can be selected to complete the unlocking operation according to the above steps.

[0049] This invention provides a dual-head unlocking lock in Embodiment 1. By setting independent first lock bodies 1 and second lock bodies 2 at both ends of the lock beam 3, and housing a first unlocking mechanism within the first lock body 1 and a second unlocking mechanism within the second lock body 2, the lock has two independent unlocking mechanisms. This provides the unlocker with two backup unlocking methods. If one unlocking mechanism fails or the unlocking key is lost, the other unlocking mechanism can still unlock the lock. This significantly reduces the probability of forced unlocking due to a failed unlocking mechanism or a lost key, avoiding losses caused by forced unlocking. The lock structure is compact and small, without excessively increasing the lock size due to the addition of an unlocking mechanism, making it convenient for daily use.

[0050] Wherein, the first unlocking mechanism and the second unlocking mechanism are both mechanical lock mechanisms; or, both are electronic lock mechanisms; or, one is a mechanical lock mechanism and the other is an electronic lock mechanism.

[0051] It should be noted that the specific structure of the above-mentioned mechanical lock mechanism and electronic lock mechanism is not limited in detail here, as long as it can allow the first limiting member 101 to move out of or into the groove 6 or allow the second limiting member to move so as to be offset from or abut against the card head 7.

[0052] Specifically, when the first unlocking mechanism is a mechanical lock mechanism, such as Figure 3 and 6 As shown in ~8, it includes a lock cylinder 9 and a key 10. The lock cylinder 9 includes a lock shaft 11 and a locking pin 12 arranged along the axial direction of the lock shaft 11.

[0053] The first lock body 1 has a third inner hole 13, which includes a connecting part 14, a rotating part 15, and a plugging part 16. The lock cylinder 9 is located in the plugging part 16 and is in clearance fit with the first lock body 1. The connecting part 14 faces the end of the locking pin 12 and mates with the groove 6 on the lock beam 3 to make the third inner hole 13 and the groove 6 communicate. The rotating part 15 is formed by the space created by the locking pin 12 rotating about the axis of the lock shaft 11.

[0054] The first limiting member 101 is a spherical object that facilitates rolling and is located within the connecting portion 14 and the groove 6. When the lock cylinder 9 is rotated so that the locking pin 12 is located within the insertion portion 16, the locking pin 12 locks the first limiting member 101 within the connecting portion 14 and the groove 6, thereby engaging the end of the lock beam 3 with the first lock body 1 through the first limiting member 101. When the lock cylinder 9 is rotated in the opposite direction so that the locking pin 12 is located within the rotating portion 15, the first limiting member 101 rolls and completely moves out of the groove 6 and stops within the first lock body 1, thereby disengaging the end of the lock beam 3 from the first inner hole 4 and separating the lock beam 3 from the first lock body 1.

[0055] The central surface of the lock shaft 11 is provided with a keyhole 17 that matches the key 10. The first lock body 1 is also provided with a plurality of spring holes 18 along the central surface of the lock shaft 11. Each spring hole 18 is perpendicular to the axial direction of the lock shaft 11 and leads to the keyhole 17. The spring holes 18 are arranged along the axial direction of the lock shaft 11 and at intervals corresponding to the tooth spacing of the key 10, so that the spring holes 18 correspond one-to-one with the key teeth. Each spring hole 18 is provided with a spring 19, an upper pin 20 and a lower pin 21 in sequence. The spring 19 is located at the end away from the keyhole 17, and the end of the spring 19 away from the keyhole 17 is connected to the first lock body 1, and the other end is connected to the upper pin 20. The lower pin 21 abuts against the upper pin 20.

[0056] When the key 10 is inserted into the keyhole 17, the contact points of the upper pin 20 and the lower pin 21 in each of the pin holes 18 are aligned with the wall of the third inner hole 13, so that the lock cylinder 9 can be rotated by rotating the key 10. It should be noted that this is a conventional toothed key 10 and lock cylinder 9 structure in the art. Those skilled in the art can easily realize the insertion of the key and the rotation of the lock cylinder based on the description in this specification, so no further detailed description will be given.

[0057] Specifically, when the second unlocking mechanism is an electronic lock mechanism, such as Figure 5 and 9 As shown in ~10, the second limiting member is a magnet block 22 with N and N poles;

[0058] The second lock body 2 is equipped with an antenna 23, a control module 24 and an electromagnet 25. The antenna 23 is electrically connected to the control module 24. The two ends of the conductive coil wound on the outer surface of the electromagnet 25 are electrically connected to the control module 24. The antenna 23 is used to receive control signals and generate current through electromagnetic induction to drive the control module 24. The control module 24 analyzes whether the control signals meet the locking or unlocking conditions through a built-in program and issues corresponding execution commands.

[0059] The second lock body 2 is also provided with a fourth inner hole 26. The magnet 22 is located in the fourth inner hole 26 and is slidably connected to one end of the fourth inner hole 26. The aforementioned end of the fourth inner hole 26 is connected to the second inner hole 5 so that the magnet 22 abuts against the latch 7. The other end of the fourth inner hole 26 is provided with a magnetic drive unit facing the end of the electromagnet 25. An unlocking space 31 for the magnet 22 to move is reserved between the magnetic drive unit and the magnet 22. The aforementioned magnetic drive unit is used to cooperate with the electromagnet 25 to attract or repel the magnet 22.

[0060] In one specific embodiment, the magnetic drive unit includes a magnetic guide block 27 and a cylindrical magnet 28. The magnetic guide block 27 has a cylindrical hole 29, and the cylindrical magnet 28 is located in the cylindrical hole 29 and is in clearance fit with the magnetic guide block 27.

[0061] When the control module 24 analyzes the control signal and determines that the unlocking conditions are met, it issues an unlocking command. Specifically, it generates a magnetic field by introducing current into the conductive coil of the electromagnet 25, causing the cylindrical magnet 28 to rotate within the cylindrical hole 29, thereby adjusting the orientation of the magnetic poles of the cylindrical magnet 28. This causes the magnet block 22 to slide towards the guide magnet block 27 due to the attraction of the magnetic lines of force of the cylindrical magnet 28, thus disengaging the magnet block 22 from the locking head 7. Then, rotating the locking beam 3 completes the unlocking. Similarly, when the control module 24 analyzes the control signal and determines that the locking conditions are met, it issues a locking command. Specifically, it generates a magnetic field by introducing a reverse current into the conductive coil of the electromagnet 25, causing the cylindrical magnet 28 to rotate within the cylindrical hole 29, thereby adjusting the orientation of the magnetic poles of the cylindrical magnet 28. This causes the magnetic lines of force of the cylindrical magnet 28 to repel the magnet block 22, causing the magnet block 22 to slide towards the locking head 7 until it abuts against the locking head 7, preventing the locking beam 3 from rotating and thus completing the locking. Among them, the magnetic conductor 27 is a magnetic conductor and plays the role of conducting magnetic lines of force.

[0062] Typically, control signals are sent to antenna 23 via the NFC or Bluetooth functions of a mobile phone. However, the power supplied by NFC or Bluetooth is relatively low and cannot meet the energy requirements for directly driving the sliding of magnet 22. Passive padlocks on the market that use low-power power supply methods such as NFC and Bluetooth usually employ LC oscillation energy storage to effectively drive the unlocking mechanism. However, the lifespan of electronic capacitors is relatively short, which affects the overall lifespan of the padlock. On the one hand, in this embodiment, the sliding of magnet 22 is driven by columnar magnet 28. NFC or Bluetooth power supply can meet the relatively small energy required to attract the rotation of columnar magnet 28. Therefore, the electronic lock mechanism in this embodiment has low energy consumption and less reduction in the lifespan of electronic components. On the other hand, the magnetic flux attracting columnar magnet 28 can be increased by increasing the number of electromagnets 25 to form an array rotation, which effectively solves the problem that the low power transmission of NFC or Bluetooth wireless communication methods cannot directly drive the unlocking mechanism.

[0063] In a more specific embodiment, such as Figures 9-10 As shown, the magnetic block 27 is further provided with magnetoresistive elements 30 on both sides of the cylindrical hole 29. Both magnetoresistive elements 30 are perpendicular to the N / S pole connection line of the magnet block 22, used to prevent the magnetic field lines from forming a closed loop that does not affect the movement of the magnet block 22, thus avoiding magnetic leakage that could interfere with the movement of the magnet block. Specifically, the magnetoresistive elements 30 can be made of materials with magnetic resistance properties, such as copper, and are fixed inside the magnetic block 27 by bonding or pre-embedding.

[0064] In a more specific embodiment, the columnar magnet 28 is formed by wrapping the top and bottom surfaces of the magnet strip with a magnetoresistive material, and the two radial sides of the columnar magnet 28 are N and N magnetic poles.

[0065] Embodiment 2 of the present invention provides a locking system including multiple locks, each lock being used for a different location or item. Each lock is a double-headed unlocking lock as described in the above embodiments. The first unlocking mechanism of each lock is the same, while the second unlocking mechanism of each lock is different; or, the first unlocking mechanism of each lock is different, while the second unlocking mechanism of each lock is the same.

[0066] If a single manager uses only one set of traditional padlocks to unlock multiple objects (such as multiple rooms, equipment, and lockers) under their supervision, and each object is used by an independent user, the manager would need to keep multiple keys to ensure the uniqueness of the unlocking method for each user. This becomes extremely inconvenient when there are many objects. For example, if a power company manages and maintains meters in thousands of residential areas within its jurisdiction, and each residential property management company also needs to inspect and maintain the switches and wiring in the meter rooms, using traditional padlocks would mean the power company and property management companies share keys. Each property management company would only need to manage the key to its own meter room, while the power company would need to keep thousands of key to meter rooms across the entire area, making key management extremely complex.

[0067] The lock system provided in Embodiment 2 of the present invention allows the administrator to keep only one universal unlocking key or access, while users of different objects each have their own exclusive unlocking key or access, which greatly reduces the workload of the administrator and solves the problem of existing padlocks having only one unlocking mechanism, which makes it inconvenient for the administrator to manage keys for multiple objects.

[0068] While various smart electronic padlocks on the market eliminate the need for physical keys, they also create cumbersome unlocking permission management issues. Administrators need to verify and approve the identities of new and changed users in a timely manner, resulting in a significant management burden. If a user no longer needs the lock but fails to inform the administrator promptly, the administrator may not detect and revoke the unlocking permission in time, leading to unauthorized authorization and potential security risks. For example, adding an electrician to a property management company, or an electrician transferring or leaving the company, requires obtaining authorization procedures from the power supply department, and the property management company also needs to issue identity certificates and other documents, increasing the workload of permission management. Even slight oversights can cause inconvenience or security risks. However, the first lock body 1 and the second lock body 2 of the lock used in Embodiment 2 of this invention are independently designed. When facing user changes, the entire lock system is not discarded; only the corresponding lock body used by the new user needs to be replaced. The old unlocking key or permission will automatically become invalid, eliminating the need for recycling, destruction, or revocation of permissions, further reducing the administrator's burden of key and permission management.

[0069] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-headed unlocking lock, characterized in that: It includes a first lock body with a first inner hole, a second lock body with a second inner hole, a first limiting member, a second limiting member, and a lock beam; One end of the lock beam is provided with a groove, and this end is inserted into the first inner hole; a part of the first limiting member is located in the groove, and the other part is locked in the first lock body to prevent the lock beam from coming out of the first inner hole; the first lock body is provided with a first unlocking mechanism for controlling the first limiting member to move out of or into the groove; The other end of the lock beam is provided with a locking head, and this end is inserted into the second inner hole and threadedly connected to the second inner hole; the second limiting member abuts against the locking head to restrict the lock beam from rotating and disengaging from the second inner hole; the second lock body is provided with a second unlocking mechanism for controlling the movement of the second limiting member to offset or abut against the locking head; The unlocking key for the first unlocking mechanism is different from that for the second unlocking mechanism; The second unlocking mechanism is an electronic lock mechanism, and the second limiting member is a magnetic block; The second lock body is equipped with an antenna, a control module and an electromagnet. The antenna is electrically connected to the control module. The two ends of the conductive coil wound on the outer surface of the electromagnet are electrically connected to the control module. The antenna is used to receive control signals and generate current to drive the control module. The control module is used to analyze control signals and issue execution commands. The second lock body also has a fourth inner hole, the magnet is located in the fourth inner hole and is slidably connected to one end of the fourth inner hole, and this end of the fourth inner hole communicates with the second inner hole so that the magnet abuts against the latch; the other end of the fourth inner hole is provided with a magnetic drive unit facing the end of the electromagnet, and an unlocking space is reserved between the magnetic drive unit and the magnet for the magnet to move; the magnetic drive unit is used to cooperate with the electromagnet to attract or repel the magnet; The magnetic drive unit includes a magnetic guide block and a cylindrical magnet. The magnetic guide block has a cylindrical hole, and the cylindrical magnet is located inside the cylindrical hole and is in clearance fit with the magnetic guide block.

2. The double-headed unlocking lock according to claim 1, characterized in that: The first unlocking mechanism is a mechanical lock mechanism or an electronic lock mechanism.

3. A double-headed unlocking lock according to claim 2, characterized in that: The first unlocking mechanism is a mechanical lock mechanism, including a lock cylinder and a key. The lock cylinder includes a lock shaft and a locking pin arranged along the axial direction of the lock shaft. The first lock body is provided with a third inner hole, which includes a connecting part, a rotating part, and a plugging part; the lock cylinder is located in the plugging part and is in clearance fit with the first lock body; the connecting part faces the end of the locking pin and mates with the groove on the lock beam to make the third inner hole and the groove communicate; the rotating part is formed by the space formed by the locking pin rotating about the lock shaft axis; The first limiting member is a sphere and is located within the connecting portion and the groove; The central surface of the lock shaft is provided with a keyhole that matches the key. The first lock body is also provided with a plurality of spring holes along the central surface of the lock shaft. Each spring hole is perpendicular to the axial direction of the lock shaft and leads to the keyhole. The spring holes are arranged along the axial direction of the lock shaft and at intervals corresponding to the tooth spacing of the key. Each of the aforementioned spring holes is provided with a spring, an upper pin, and a lower pin in sequence. The spring is located at the end away from the keyhole, and the end of the spring away from the keyhole is connected to the first lock body, while the other end is connected to the upper pin. The lower pin abuts against the upper pin.

4. A double-headed unlocking lock according to claim 1, characterized in that: The magnetic block is further provided with magnetoresistive elements on both sides of the cylindrical hole, and the magnetoresistive elements on both sides are perpendicular to the line connecting the SN poles of the magnetic block.

5. A double-headed unlocking lock according to claim 4, characterized in that: The columnar magnet is composed of a magnetoresistive material S covering the upper and lower surfaces of a magnet strip.

6. A locking system comprising a plurality of locks, each lock being used for a corresponding different location or item, wherein each lock is a double-headed unlocking lock as described in any one of claims 1 to 5, characterized in that: The first unlocking mechanism of each lock is the same, while the second unlocking mechanism of each lock is different; or, The first unlocking mechanism of each lock is different, while the second unlocking mechanism of each lock is the same.

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