Passive and mechanical combined padlock

Abstract

The utility model provides a passive and mechanical combined padlock, which is characterized in that a mounting groove is arranged on one side of a lock cylinder in a padlock body, a locking column is arranged in the mounting groove, the locking column is slidably connected with the padlock body, a motor is further arranged in the mounting groove, a screw rod is arranged at the end part of the motor, the screw rod and the locking column are coaxially arranged, and the screw rod is in threaded connection with the locking column; a locking hole is formed in the lock cylinder, a power connection device arranged in the lock cylinder is electrically connected with the driving circuit, at least two signal contacts are arranged on the passive key, the passive key is inserted into the lock cylinder, and the passive key is electrically connected with the driving circuit through the signal contacts; the driving circuit drives the motor to rotate to enable the locking column to retract, and the passive key drives the lock cylinder to enable the lock bolt to retract to open the padlock. Compared with a traditional wireless transmission mode, the problems of signal interference and attenuation are avoided, and the unlocking time is shortened. Meanwhile, due to the fact that a mechanical key rotating mode is adopted, an additional motor does not need to be arranged to drive the lock bolt, the structure is simplified, and the failure rate is reduced.

Description

Technical Field

[0001] The utility model relates to the field of passive padlocks, in particular to a passive and mechanical combined padlock. Background Art

[0002] Passive mechanical padlock is a hybrid lock that integrates traditional mechanical lock structure and passive electronic technology. This padlock has both mechanical key unlocking and electronic identity verification functions, but it does not rely on built-in batteries or external power to work. Instead, the electronic key provides temporary power when it approaches the lock body to drive the internal electronic system for identity verification and unlocking operations.

[0003] Currently, passive mechanical padlocks on the market are relatively complex in structure, and most of their unlocking mechanisms rely on electronic keys to transmit identity authentication and unlocking instructions. When this type of electronic key is close to the lock body, it transmits weak power to the electronic module in the lock through wireless means to achieve identity authentication and unlocking functions. However, this wireless transmission method has several significant limitations.

[0004] First, the stability of wireless transmission is poor. Since wireless signals are easily interfered by environmental factors, such as electromagnetic noise, physical obstacles, etc., the signal attenuation or distortion during the transmission process will affect the accuracy and speed of unlocking. Therefore, in actual use, it often takes a long time for the recognition process to successfully open the passive mechanical lock.

[0005] Secondly, wireless transmission padlocks are relatively slow in opening speed. Due to the need for wireless signal transmission and identity authentication, the unlocking process of the padlock is relatively long. This may not meet the needs of fast unlocking in some emergency situations.

[0006] In addition, due to the structural design of the padlock, the unlocking process usually requires a motor drive to open the bolt. Long-term use may cause the motor to wear or malfunction, and then fail to open the bolt. This not only affects the reliability of the padlock, but also increases the cost of maintenance and replacement. Utility Model Content

[0007] The main purpose of the utility model is to provide a passive and mechanical padlock, which solves the problem that the stability of wireless transmission is poor and a long identification process is required to successfully open the passive mechanical lock and the unlocking process usually requires a motor drive to open the lock bolt. Long-term use may cause motor wear or failure.

[0008] In order to solve the above technical problems, the technical solution adopted by the utility model is: a passive and mechanical padlock, a mounting groove is provided on one side of the lock core inside the padlock body, a locking column is provided inside the mounting groove, the locking column is slidably connected with the padlock body, a motor is also provided inside the mounting groove, a screw is provided at the end of the motor, the screw is coaxially arranged with the locking column and is threadedly connected with the locking column, a locking hole is provided on the lock core, a power connection device provided inside the lock core is electrically connected with a drive circuit, at least two signal contacts are provided on the passive key, the passive key is inserted into the lock core, and the passive key is electrically connected with the drive circuit through the signal contacts;

[0009] The driving circuit drives the motor to rotate to retract the locking column, and the passive key drives the lock core to retract the lock bolt to open the padlock.

[0010] In the preferred embodiment, a mounting seat is further provided inside the mounting groove, the locking column is slidably connected to the mounting seat, the motor is installed at the rear of the mounting seat, and the output end of the motor is connected to the screw rod.

[0011] In the preferred embodiment, sliding blocks are provided on both sides of the locking column, a plurality of sliding grooves are provided inside the mounting seat, and the locking column is slidably connected to the mounting seat via the sliding blocks.

[0012] In the preferred embodiment, the drive circuit is arranged on one side of the mounting base, a power socket is arranged between the drive circuit and the lock core, at least two first power terminals are arranged on the power socket, at least two conductive rings are arranged on the lock core, and the first power terminals are against the conductive rings.

[0013] In the preferred embodiment, a blind hole is provided on the power socket, the first power terminal is slidably connected to the blind hole on the power socket, a first spring is provided between the first power terminal and the bottom hole of the power socket, the wire passes through the bottom of the power socket and is connected to the end of the first power terminal, and the other end of the wire is electrically connected to the drive circuit.

[0014] In a preferred solution, the interiors of the two conductive rings are in contact with the signal contacts of the passive key via contacts.

[0015] In a preferred embodiment, a plurality of blind holes are provided on both sides of the keyhole of the lock core, a second electrical connector is slidably provided inside the blind hole, and a second spring is provided between the bottom of the second electrical connector and the bottom of the blind hole.

[0016] In a preferred embodiment, a conductive column is further provided at the bottom of the blind hole, the conductive column is connected to the conductive ring, and the conductive column is connected to the second electrical connector via an electric wire.

[0017] In the preferred embodiment, the end of the second contact is a conical structure, the blind holes on both sides of the keyhole of the lock core are both constricted structures, and the ends extend out of the blind hole openings, and the column part of the second contact is against the inner limit of the constriction.

[0018] In a preferred embodiment, a sealing plate is further provided at the outer opening of the installation groove.

[0019] The utility model provides a passive and mechanical padlock, and the improved passive mechanical padlock design significantly improves the stability and unlocking speed of the padlock. The core improvement is the introduction of a new unlocking mechanism, which combines mechanical and electrical connection methods to effectively avoid the limitations of wireless transmission.

[0020] There is an installation groove on one side of the lock core inside the padlock body, and the locking column and motor are installed in the groove. The screw at the end of the motor is threadedly connected to the locking column, and the extension and retraction of the locking column can be controlled by the rotation of the motor. There is a locking hole on the lock core. When the locking column is extended, it can be inserted into the locking hole to prevent the lock core from rotating, thereby locking the padlock. At the same time, the power connection device inside the lock core is electrically connected to the drive circuit, providing a power basis for the drive of the motor.

[0021] The passive key is provided with a signal contact. When the key is inserted into the lock cylinder, the signal contact is electrically connected to the drive circuit. At this time, the drive circuit can receive the signal from the key and drive the motor to rotate, so that the locking column retracts and the lock cylinder is unlocked. Subsequently, the passive key can drive the lock cylinder to rotate, and then drive the lock bolt to retract, so that the padlock can be opened.

[0022] This design not only ensures the safety of the padlock, but also improves the speed and stability of unlocking through the dual methods of mechanical and electrical connection. Compared with the traditional wireless transmission method, it avoids the problems of signal interference and attenuation and reduces the unlocking time. At the same time, due to the use of the mechanical key rotation method, there is no need to set up an additional motor to drive the lock bolt, which simplifies the structure and reduces the failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] Figure 1 This is the overall appearance structure diagram of the utility model;

[0025] Figure 2 It is a side sectional structural diagram of the utility model;

[0026] Figure 3 This is a disassembled structural diagram of the locking column of the utility model;

[0027] Figure 4 This is a cross-sectional structural diagram of the internal lock core of the utility model;

[0028] Figure 5 It is a top view of the internal structure of the lock core of the utility model.

[0029] In the figure: padlock body 1; locking bolt 101; mounting groove 102; sealing plate 2; passive key 3; signal contact 301; lock cylinder 4; conductive ring 401; second power terminal 402; conductive column 403; second spring 404; locking hole 405; locking column 5; sliding block 501; motor 6; screw 7; drive circuit 8; mounting seat 9; power terminal 10; first spring 11; first power terminal 12. DETAILED DESCRIPTION

[0030] like Figures 1 to 5 As shown, a passive and mechanical padlock is provided, a mounting groove 102 is provided on one side of a lock core 4 inside a padlock body 1, a locking column 5 is provided inside the mounting groove 102, the locking column 5 is slidably connected to the padlock body 1, a motor 6 is further provided inside the mounting groove 102, a screw 7 is provided at the end of the motor 6, the screw 7 is coaxially arranged with the locking column 5 and is threadedly connected to the locking column 5, a locking hole 405 is provided on the lock core 4, a power connection device provided inside the lock core 4 is electrically connected to a drive circuit 8, at least two signal contacts 301 are provided on the passive key 3, the passive key 3 is inserted into the lock core 4, and the passive key 3 is electrically connected to the drive circuit 8 through the signal contact 301;

[0031] The driving circuit 8 drives the motor 6 to rotate to retract the locking column 5, and the passive key 3 drives the lock cylinder 4 to retract the lock bolt 101 to open the padlock.

[0032] Insert the passive key 3 into the lock cylinder 4 of the padlock body 1. The signal contact 301 on the passive key 3 contacts the power supply device inside the lock cylinder 4, and then establishes an electrical connection with the drive circuit 8. The data and unlocking information of the passive key 3 are transmitted to the drive circuit 8 through the signal contact 301. The drive circuit 8 checks the received unlocking information, and after confirming that it is correct, it drives the motor 6 to rotate. The motor 6 drives the locking column 5 to retract from the locking hole 405 of the lock cylinder 4 through the screw 7. At this time, the lock cylinder 4 is no longer locked, and the passive key 3 can be rotated, thereby driving the lock cylinder 4 to rotate, so that the lock bolt 101 is retracted, and the padlock is opened.

[0033] In the preferred embodiment, a mounting seat 9 is further provided inside the mounting groove 102, the locking column 5 is slidably connected to the mounting seat 9, the motor 6 is installed at the rear of the mounting seat 9, and the output end of the motor 6 is connected to the screw 7. The locking column 5 and the mounting seat 9 are assembled in a sliding connection, which gives the locking column 5 a smooth and flexible movement ability, so that it can accurately complete the locking or unlocking action under specific operating instructions. When the motor 6 receives the electric control signal and starts to run, its rotational kinetic energy will be efficiently transferred to the screw 7 through the output end, and the screw 7 drives the locking column 5 to retract from the locking hole 405 of the lock core 4. The mounting seat 9 is also convenient for overall installation and disassembly. This design combines mechanical and electric drives to improve the unlocking efficiency and stability of the padlock.

[0034] In the preferred embodiment, sliding blocks 501 are further provided on both sides of the locking column 5, and a plurality of sliding grooves are provided inside the mounting seat 9, and the locking column 5 is slidably connected to the mounting seat 9 through the sliding blocks 501. The locking column 5 is realized to slide up and down inside the mounting seat 9.

[0035] In the preferred embodiment, the driving circuit 8 is arranged on one side of the mounting seat 9, and a power connection seat 10 is arranged between the driving circuit 8 and the lock core 4. At least two first power connection heads 12 are arranged on the power connection seat 10, and at least two conductive rings 401 are arranged on the lock core 4, and the first power connection heads 12 are against the conductive rings 401. The two first power connection heads 12 on the power connection seat 10 are directly against the two conductive rings 401, and the signal contact 301 on the passive key 3 is in contact with the power connection device inside the lock core 4, and the power connection device inside the lock core 4 is in contact with the conductive rings 401, so as to achieve the technical effect of direct power connection between the passive key 3 and the driving circuit 8.

[0036] In the preferred embodiment, a blind hole is provided on the power socket 10, and the first power connector 12 is slidably connected to the blind hole on the power socket 10. A first spring 11 is provided between the first power connector 12 and the bottom hole of the power socket 10. The wire passes through the bottom of the power socket 10 and is connected to the end of the first power connector 12. The other end of the wire is electrically connected to the drive circuit 8. Figure 2 In the structure shown, at least two first electrical terminals 12 are arranged on the electrical socket 10, and these electrical terminals are precisely pressed against at least two conductive rings 401 provided on the lock core 4 in a preset posture. The contact between the electrical terminals 12 and the conductive rings 401 builds a stable electrical contact interface, ensuring that the current and control signals can flow smoothly between the two.

[0037] Specifically, the two first electrical connectors 12 on the electrical socket 10 are respectively tightly fitted on the corresponding two conductive rings 401 to form a reliable double-point contact. When the passive key 3 is inserted into the lock cylinder 4, the signal contacts 301 on it will precisely dock with the electrical devices inside the lock cylinder 4. These electrical devices further establish contact with the conductive rings 401, thereby establishing a direct electrical connection channel between the passive key 3 and the drive circuit 8.

[0038] Through this ingenious power connection structure design, the passive key 3 does not need a built-in power supply, and can directly connect to the drive circuit 8 by relying only on the signal information it carries, completing the transmission of identity authentication and unlocking instructions. This technical solution not only simplifies the key structure and reduces the cost of use, but also effectively avoids the stability problem of traditional wireless transmission methods, improves the reliability and response speed of the passive mechanical padlock system, and fully reflects its innovation and practicality.

[0039] In the preferred embodiment, the inside of the two conductive rings 401 contacts the signal contact 301 of the passive key 3. Multiple blind holes are provided on both sides of the keyhole of the lock core 4, and a second electrical connector 402 is slidably provided inside the blind hole. A second spring 404 is provided between the bottom of the second electrical connector 402 and the bottom of the blind hole.

[0040] In order to ensure a stable and efficient electrical connection between the passive key 3 and the lock core 4, a precise layout is made inside the lock core 4. Two conductive rings 401 are respectively built with contacts. When the passive key 3 is inserted into the lock core, the signal contacts 301 on it will precisely contact the contacts inside the two conductive rings 401 to form an effective current conduction path.

[0041] A plurality of blind hole structures are specially arranged on both sides of the keyhole of the lock core 4, and a sliding second electrical connector 402 is installed inside these blind holes. A second spring 404 is embedded between the bottom of each second electrical connector 402 and the bottom of the blind hole to form an elastic support and reset system. When the passive key 3 is inserted into the lock core, its signal contact 301 will contact the top of the second electrical connector 402.

[0042] The second spring 404 continuously pushes the second contact 402 to always extend outward, ensuring that its top is always in close contact with the signal contact 301 of the passive key 3. Even if there is a slight position deviation during the key insertion process, the elastic force of the spring can compensate for it, ensuring the stability and reliability of the contact. At the same time, the tail of the second contact 402 is in contact with the conductive ring 401, forming a complete electrical data transmission path.

[0043] When the passive key 3 is inserted into the lock cylinder, the electrical data it carries is transmitted to the conductive ring 401 via the second electrical connector 402, and then the conductive ring 401 contacts the first electrical connector 12 of the electrical socket 10, and finally transmits the electrical data to the drive circuit 8. This series of precise electrical contact structures ensures a direct and stable electrical connection between the passive key 3 and the drive circuit 8, effectively avoiding the stability problem of wireless transmission, and greatly improving the response speed and reliability of the passive mechanical padlock system.

[0044] In the preferred embodiment, a conductive column 403 is further provided at the bottom of the blind hole, the conductive column 403 is connected to the conductive ring 401, and the conductive column 403 is connected to the second electrical connector 402 through a wire. The conductive column 403 mainly connects the conductive ring 401 and the second electrical connector 402.

[0045] In the preferred embodiment, the end of the second electrical connector 402 is a conical structure, the blind holes on both sides of the keyhole of the lock core 4 are both constricted structures, and the ends extend out of the blind hole openings, and the column part of the second electrical connector 402 is against the inner limit of the constriction. This conical structure plays a limiting role, and after the passive key 3 is pulled out, the second electrical connector 402 will not be pushed out due to the spring.

[0046] In the preferred embodiment, a sealing plate 2 is further provided at the outer opening of the installation slot 102. The sealing plate 2 seals the outer opening of the installation slot 102 to protect the parts inside the installation slot 102.

[0047] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A passive and mechanical combined padlock, characterized by: A mounting groove (102) is provided on one side of a lock core (4) inside a padlock body (1), a locking column (5) is provided inside the mounting groove (102), the locking column (5) is slidably connected to the padlock body (1), a motor (6) is also provided inside the mounting groove (102), a screw (7) is provided at the end of the motor (6), the screw (7) is coaxially arranged with the locking column (5) and is threadedly connected to the locking column (5), a locking hole (405) is provided on the lock core (4), a power connection device provided inside the lock core (4) is electrically connected to a drive circuit (8), at least two signal contacts (301) are provided on the passive key (3), the passive key (3) is inserted into the lock core (4), and the passive key (3) is electrically connected to the drive circuit (8) via the signal contacts (301); The driving circuit (8) drives the motor (6) to rotate so that the locking column (5) retracts, and the passive key (3) drives the lock core (4) to retract the lock bolt (101) to open the padlock.

2. A passive and mechanical combined padlock according to claim 1, characterized in that: A mounting seat (9) is also provided inside the mounting groove (102), the locking column (5) is slidably connected to the mounting seat (9), the motor (6) is mounted at the rear of the mounting seat (9), and the output end of the motor (6) is connected to the screw rod (7).

3. A passive and mechanical combined padlock according to claim 2, characterized in that: Sliding blocks (501) are also provided on both sides of the locking column (5), a plurality of sliding grooves are provided inside the mounting seat (9), and the locking column (5) is slidably connected to the mounting seat (9) via the sliding blocks (501).

4. A passive and mechanical combined padlock according to claim 1, characterized in that: The drive circuit (8) is arranged on one side of the mounting seat (9); an electric connection seat (10) is arranged between the drive circuit (8) and the lock core (4); at least two first electric terminals (12) are arranged on the electric connection seat (10); at least two conductive rings (401) are arranged on the lock core (4); and the first electric terminals (12) abut against the conductive rings (401).

5. A passive and mechanical combined padlock according to claim 4, characterized in that: A blind hole is provided on the power socket (10); a first power connector (12) is slidably connected to the blind hole on the power socket (10); a first spring (11) is provided between the first power connector (12) and the bottom hole of the power socket (10); an electric wire passes through the bottom of the power socket (10) and is connected to an end of the first power connector (12); and the other end of the electric wire is electrically connected to a drive circuit (8).

6. A passive and mechanical combined padlock according to claim 4, characterized in that: The insides of the two conductive rings (401) are in contact with the signal contacts (301) of the passive key (3) via contacts.

7. A passive and mechanical combined padlock according to claim 6, characterized in that: A plurality of blind holes are provided on both sides of the keyhole of the lock core (4), a second electrical connector (402) is slidably provided inside the blind hole, and a second spring (404) is provided between the bottom of the second electrical connector (402) and the bottom of the blind hole.

8. A passive and mechanical combined padlock according to claim 7, characterized in that: A conductive column (403) is also provided at the bottom of the blind hole; the conductive column (403) is connected to the conductive ring (401); and the conductive column (403) is connected to the second electrical connector (402) via an electric wire.

9. A passive and mechanical combined padlock according to claim 7, characterized in that: The end of the second electrical connector (402) is a conical structure, the blind holes on both sides of the keyhole of the lock core (4) are both constricted structures, and the ends extend out of the blind hole openings, and the column part of the second electrical connector (402) abuts against the inside of the constricted openings for limiting.

10. A passive and mechanical combined padlock according to claim 1, characterized in that: The outer opening of the installation groove (102) is also provided with a sealing plate (2).

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