Fingerprint chain lock compatible with mechanical key and without mechanical key

Abstract

The invention belongs to the technical field of locks, and particularly relates to a fingerprint chain lock compatible with a mechanical key and without a mechanical key, which comprises a lock body, a fingerprint module is arranged on the outer wall of the lock body, and an electric lock head and a mechanical lock head are fixedly arranged at the two ends of the lock body respectively. An electric lock cap and a mechanical lock cap which are located outside the electric lock head and the mechanical lock head are arranged at the two ends of the lock body, and the same chain is fixedly connected to the sides, away from the lock body, of the electric lock cap and the mechanical lock cap; an electric locking mechanism connected with the electric lock cap is arranged in one end of the lock body and the electric lock head; and a mechanical locking mechanism connected with the mechanical lock head is arranged in the mechanical lock cap. According to the lock, convenience and safety are both considered, fingerprint unlocking is used in daily use, unlocking can be achieved by holding, a standby mechanical key used under special conditions is reserved, and if a user worries that the mechanical key is technically unlocked, the lock is compatible with the design without the mechanical key, and only the mechanical lock cap needs to be replaced with the design without the mechanical key (the same as a motor lock cap).

Description

Technical Field

[0001] This invention belongs to the field of lock technology, and in particular relates to a fingerprint chain lock that is compatible with both mechanical keys and non-mechanical keys. Background Technology

[0002] Chain locks, with their flexible structure and adjustable length, have become a commonly used type of lock in daily security, widely used for securing bicycles, electric vehicles, doors, windows, outdoor equipment, and other items. Their core consists of a metal chain and a lock body. The chain's winding motion secures the locked item, while the lock body's mechanical locking mechanism completes the anti-theft operation. Compared to fixed-size locks, they can adapt to items of different sizes and shapes, as well as different installation scenarios, offering significant ease of use. However, existing chain locks have the following drawbacks: 1. Existing traditional chain locks on the market generally use mechanical keys, which are very inconvenient as they require carrying keys; 2. In addition, there are many chain locks on the market with rotary combination locks. These locks are convenient to use, but they are not very secure. The combination is too short and easy to crack. They are also difficult to remember and take a long time to operate. They are mostly used in scenarios where security is not high. 3. There are also some fingerprint chain locks on the market, most of which are small steel cable locks, and they can be easily destroyed using hydraulic pliers; 4. Compared to the above three scenarios, there are also relatively sturdy stainless steel chain fingerprint locks, but they do not come with a mechanical key. Once the power is out or an electronic malfunction occurs over time, they will be difficult to unlock.

[0003] To address this, a fingerprint chain lock compatible with both keyless and keyless locks is proposed. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a fingerprint chain lock that is compatible with both mechanical keys and non-mechanical keyless locks.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a fingerprint chain lock compatible with both mechanical keys and non-mechanical keys, comprising a lock body, a fingerprint module provided on the outer wall of the lock body, an electric lock head and a mechanical lock head respectively fixedly provided at both ends of the lock body, an electric lock cap and a mechanical lock cap located outside the electric lock head and the mechanical lock head at both ends of the lock body, and the same chain fixedly connected to the side of the electric lock cap and the mechanical lock cap away from the lock body; An electric locking mechanism connected to the electric lock cap is provided inside one end of the lock body and inside the electric lock head; The mechanical lock cap has a mechanical locking mechanism inside that is connected to the mechanical lock head.

[0006] Preferably, the electric locking mechanism includes a motor fixedly installed inside the lock body. The output end of the motor is fixedly provided with a rotating shaft extending into the electric lock head via a coupling. A cross shaft is fixedly provided on the shaft wall of the rotating shaft. A slider is laterally slidable inside the electric lock head. The shaft wall of the rotating shaft passes through the interior of the slider. A drive spring is engaged inside the slider via the cross shaft. The drive spring is sleeved on the shaft wall of the rotating shaft. A steel ball is movably provided inside the electric lock head and on one side of the slider. A steel ball groove is provided on one inner wall of the electric lock cap at a position corresponding to the position of the steel ball.

[0007] Preferably, a pushing slope is provided on one side of the slider, and the position of the pushing slope corresponds to the position of the steel ball. An elastic stainless steel sheet is fixedly provided on the inner side wall of the electric lock head at the position corresponding to the position of the steel ball.

[0008] Preferably, the slider is movably engaged with an elastic positioning bead on the side away from the steel ball, and the electric locking cap is provided with a positioning groove on the inner wall of the side away from the steel ball groove, and the elastic positioning bead can engage with the positioning groove.

[0009] Preferably, the mechanical locking mechanism includes a mechanical lock cylinder rotatably disposed inside the mechanical lock cap, a key is inserted into one side of the mechanical lock cylinder, and a mechanical lock pin is fixedly disposed on the other side of the mechanical lock cylinder, the mechanical lock pin being insertable into the interior of the mechanical lock head.

[0010] Preferably, one side of the electric lock cap and one side of the mechanical lock cap are fixedly provided with a pivot pin that is connected to the chain.

[0011] Preferably, the outer wall of the lock body is provided with a fingerprint cover, and the fingerprint cover can cover the fingerprint module.

[0012] Preferably, the lock body has a long strip structure, the lock body is made of zinc alloy and stainless steel, and the chain is made of stainless steel.

[0013] Preferably, the side wall of the electric lock cap is provided with a mounting hole, and the electric lock cap can be inserted into the outside of the mechanical lock head and fixedly connected by a pin.

[0014] Compared with existing technologies, the advantages of this invention are as follows: 1. The lock body is designed with an electric locking mechanism and a mechanical locking mechanism at both ends, which avoids the problem of a large lock body or insufficient strength of parts caused by integrating a dual structure on a single end. This makes the lock body uniform and compact, convenient for daily carrying and use, and the locking structure has sufficient force to improve the stability of use.

[0015] 2. The motor drives the slider to move through the cross shaft and drive spring. When the slider moves to the left limit position, the motor will continue to drive the shaft to rotate, so that the cross shaft can disengage from the drive spring and continue to rotate, ensuring that the shaft can rotate continuously, effectively preventing the motor from stalling and being damaged, and extending the service life of the motor.

[0016] 3. The matching structure of the steel ball and the steel ball groove, together with the positioning function of the elastic positioning ball, ensures that the electric end lock is accurate and stable, and the electric lock cap can be inserted into the electric lock head in any direction, making operation convenient.

[0017] 4. The lock body is made of zinc alloy and stainless steel, and the chain is made of stainless steel. It is sturdy and durable and can resist violent damage such as hydraulic clamps, thus improving security performance.

[0018] 5. It is compatible with both fingerprint unlocking and mechanical key unlocking modes. Fingerprint unlocking is convenient and efficient for daily use, while mechanical key unlocking ensures reliability in special circumstances, balancing convenience and security. Attached Figure Description

[0019] Figure 1 This is a perspective view of a fingerprint chain lock compatible with both mechanical keys and non-mechanical keys provided by the present invention; Figure 2 This is a perspective view of the connection between the lock body, electric lock cylinder, and mechanical lock cylinder in a fingerprint chain lock compatible with both mechanical keys and non-mechanical keys provided by the present invention; Figure 3 This is a three-dimensional view of the lock body and electric lock head of a fingerprint chain lock compatible with both mechanical and non-mechanical key types provided by the present invention. Figure 4 This is a perspective view of the motor, shaft, cross shaft, slider, and drive spring in a fingerprint chain lock compatible with both mechanical keys and non-mechanical keys provided by the present invention. Figure 5 This is a three-dimensional view of the mechanical lock cap at one end of the lock body in a fingerprint chain lock compatible with both mechanical keys and non-mechanical keys provided by the present invention. Figure 6 This is a perspective view of a fingerprint chain lock compatible with both mechanical keys and non-mechanical keys provided by this invention, after the mechanical lock cap at one end of the lock body has been removed.

[0020] Figure 7 This is a perspective view of a fingerprint chain lock compatible with both mechanical and non-mechanical key locks provided by the present invention, in which the electric lock cap can be connected to the mechanical lock head.

[0021] In the diagram: 1. Lock body; 2. Fingerprint module; 3. Electric lock cylinder; 4. Mechanical lock cylinder; 5. Electric lock cap; 6. Mechanical lock cap; 7. Chain; 8. Motor; 9. Shaft; 10. Cross shaft; 11. Slider; 12. Drive spring; 13. Steel ball; 14. Steel ball groove; 15. Pushing ramp; 16. Elastic stainless steel sheet; 17. Elastic positioning ball; 18. Positioning groove; 19. Mechanical lock cylinder; 20. Key; 21. Mechanical lock pin; 22. Fingerprint sliding cover; 23. Mounting hole. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0023] like Figures 1-7 As shown, a fingerprint chain lock compatible with both mechanical and non-mechanical key applications includes a lock body 1. The lock body 1 has a long, strip-shaped structure and is made of zinc alloy and stainless steel, making it sturdy and durable. A fingerprint module 2 is provided on the outer wall of the lock body 1. A fingerprint sliding cover 22 is slidably provided on the outer wall of the lock body 1, and the fingerprint sliding cover 22 can cover the fingerprint module 2 for protection when not in use. An electric lock cylinder 3 and a mechanical lock cylinder 4 are respectively fixed at both ends of the lock body 1. The lock body 1 has electric lock caps 5 and mechanical lock caps 6 located outside the electric lock head 3 and mechanical lock head 4 at both ends. The electric lock caps 5 and mechanical lock caps 6 are fixedly connected to the same chain 7 on the side away from the lock body 1. The chain 7 is made of stainless steel, making the chain 7 sturdy and durable. A shaft pin connected to the chain 7 is fixedly provided on one side of the electric lock cap 5 and the side of the mechanical lock cap 6. The shaft pin is movably connected to the chain 7. The chain 7 in this solution is only one locking structure. It can also be replaced with steel rope, steel chain belt, nylon core-spun rope, etc.

[0024] An electric locking mechanism connected to an electric lock cap 5 is provided inside one end of the lock body 1 and inside the electric lock cylinder 3. The electric locking mechanism includes a motor 8 fixedly installed inside the lock body 1. The lock body 1 contains a control circuit board and a battery, among other functional components. The fingerprint module 2 and the motor 8 are both electrically connected to the control circuit board. The output end of the motor 8 is fixedly connected to a rotating shaft 9 extending into the electric lock cylinder 3 via a coupling. A cross shaft 10 is fixedly installed on the shaft wall of the rotating shaft 9. A slider 11 is laterally slidable inside the electric lock cylinder 3. The shaft wall of the rotating shaft 9 passes through the interior of the slider 11. A drive spring 12 is engaged inside the slider 11 via the cross shaft 10. The drive spring 12 is sleeved on the shaft wall of the rotating shaft 9. A steel ball 13 is movably installed inside the electric lock cylinder 3 and on one side of the slider 11. A steel ball groove 14 is provided on one side of the inner wall of the electric lock cap 5, corresponding to the position of the steel ball 13. A pushing inclined surface 15 is provided on one side of the slider 11, and the position of the pushing inclined surface 15 corresponds to the position of the steel ball 13. Correspondingly, when the slider 11 is driven, it pushes the inclined plane 15 to squeeze the steel ball 13, causing the steel ball 13 to move into the steel ball groove 14. An elastic stainless steel sheet 16 is fixedly provided on the inner wall of the electric lock head 3 at the position corresponding to the steel ball 13. When the steel ball 13 enters the steel ball groove 14, the elastic stainless steel sheet 16 is squeezed. When the inclined plane 15 stops squeezing the steel ball 13, the elastic stainless steel sheet 16 can pop the steel ball 13 out of the steel ball groove 14. An elastic positioning bead 17 is movably engaged on the side of the slider 11 away from the steel ball 13. A positioning groove 18 is provided on the inner wall of the side of the electric lock cap 5 away from the steel ball groove 14. The elastic positioning bead 17 can engage with the positioning groove 18. When the electric lock cap 5 is inserted into the outside of the electric lock head 3, the elastic positioning bead 17 is first aligned with the positioning groove 18 to ensure that the steel ball 13 on the other side of the slider 11 is aligned with the steel ball groove 14. During continuous insertion, the elastic positioning bead 17 will be squeezed and moved back.

[0025] The mechanical lock cap 6 has a mechanical locking mechanism inside that is connected to the mechanical lock head 4. The mechanical locking mechanism includes a mechanical lock cylinder 19 that is rotatably disposed inside the mechanical lock cap 6. A key 20 is inserted into one side of the mechanical lock cylinder 19, and a mechanical lock pin 21 is fixedly disposed on the other side of the mechanical lock cylinder 19. The mechanical lock pin 21 can be inserted into the inside of the mechanical lock head 4.

[0026] like Figure 7 The electric lock cap 5 has a mounting hole 23 on its side wall. The electric lock cap 5 can be inserted into the outside of the mechanical lock head 4 and fixedly connected by a pin. In the case of a design without a mechanical key, the mechanical lock cap 6 can be replaced with a motor lock cap 5. Then, the motor lock cap 5 is fixed to the mechanical lock head 4 by a pin. At this time, both ends of the lock body 1 are motor lock caps 5, and the motor lock caps 5 at both ends are connected to the two ends of the chain 7 to realize the mode without a mechanical key.

[0027] The operating principle of the present invention is described as follows: The lock body 1 is made of zinc alloy and stainless steel and has a long strip structure. Electric lock head 3 and mechanical lock head 4 are fixed at both ends respectively. Electric lock cap 5 and mechanical lock cap 6 are fixedly connected to the same stainless steel chain 7 through a shaft pin. The fingerprint sliding cover 22 slidably set on the outer wall of the lock body 1 can cover or expose the fingerprint module 2, which protects the fingerprint module 2 without affecting its use. When locking, the electric lock cap 5 is placed outside the electric lock head 3 and the mechanical lock cap 6 is placed outside the mechanical lock head 4. When the electric lock cap 5 is placed outside the electric lock head 3, the elastic positioning bead 17 and the positioning groove 18 need to be aligned first so that the steel ball 13 on the other side can also be automatically aligned with the steel ball groove 14. Then, the motor 8 is started to rotate clockwise. The motor 8 drives the rotating shaft 9 to rotate through the coupling. The cross shaft 10 on the rotating shaft 9 pushes the drive spring 12 and the slider 11 to move forward. The pushing inclined surface 15 on one side of the slider 11 lifts the steel ball 13 and makes it lock into the steel ball groove 14 on the inner wall of the electric lock cap 5. At the same time, the elastic positioning bead 17 on the other side of the slider 11 is locked into the positioning groove 18 of the electric lock cap 5 to achieve electric end locking and positioning. At the same time, the key 20 is inserted into the mechanical lock cylinder 19 and rotated, so that the mechanical lock cylinder 19 drives the mechanical lock pin 21 to rotate and insert into the mechanical lock head 4 to complete the mechanical end locking. The double locking structure improves the reliability of anti-theft. When unlocking, the fingerprint module 2 is exposed by sliding the fingerprint cover 22. After the fingerprint verification is successful, the fingerprint module 2 sends an electrical signal to the control circuit board inside the lock body 1. The control circuit board then starts the motor 8. The motor 8 drives the rotating shaft 9 to rotate in the reverse direction. The cross shaft 10 drives the drive spring 12 and the slider 11 to move backward. The steel ball 13 is reset and disengaged from the steel ball groove 14 under the action of the elastic stainless steel sheet 16. At this time, the electric lock cap 5 can be pulled out from the outside of the electric lock head 3. It also supports fingerprint unlocking after USB emergency power supply to avoid unlocking difficulties. When the electronic components are out of power or malfunction, insert the key 20 into the mechanical lock cylinder 19 inside the mechanical lock cap 6 and rotate it to drive the mechanical lock pin 21 to be pulled out from inside the mechanical lock head 4, so that the mechanical lock cap 6 can be separated from the mechanical lock head 4 to unlock.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fingerprint chain lock compatible with both mechanical keys and non-mechanical keys, comprising a lock body (1), characterized in that, The outer wall of the lock body (1) is provided with a fingerprint module (2). The two ends of the lock body (1) are respectively fixed with an electric lock head (3) and a mechanical lock head (4). The two ends of the lock body (1) are provided with an electric lock cap (5) and a mechanical lock cap (6) located outside the electric lock head (3) and the mechanical lock head (4). The electric lock cap (5) and the mechanical lock cap (6) are fixedly connected to the same chain (7) on the side away from the lock body (1). An electric locking mechanism connected to the electric lock cap (5) is provided inside one end of the lock body (1) and inside the electric lock head (3); The mechanical lock cap (6) is provided with a mechanical locking mechanism that is connected to the mechanical lock head (4).

2. A fingerprint chain lock compatible with both mechanical keys and non-mechanical keys according to claim 1, characterized in that, The electric locking mechanism includes a motor (8) fixedly installed inside the lock body (1). The output end of the motor (8) is fixedly provided with a rotating shaft (9) extending into the electric lock head (3) via a coupling. A cross shaft (10) is fixedly provided on the shaft wall of the rotating shaft (9). A slider (11) is provided laterally inside the electric lock head (3). The shaft wall of the rotating shaft (9) passes through the inside of the slider (11). A drive spring (12) is snapped into the inside of the slider (11) via the cross shaft (10). The drive spring (12) is sleeved on the shaft wall of the rotating shaft (9). A steel ball (13) is provided movable inside the electric lock head (3) and on one side of the slider (11). A steel ball groove (14) is provided on one side of the inner wall of the electric lock cap (5) at a position corresponding to the position of the steel ball (13).

3. A fingerprint chain lock compatible with both mechanical keys and non-mechanical keys according to claim 2, characterized in that, The slider (11) has a pushing slope (15) on one side, and the position of the pushing slope (15) corresponds to the position of the steel ball (13). The inner side wall of the electric lock head (3) is fixed with an elastic stainless steel sheet (16) corresponding to the position of the steel ball (13).

4. A fingerprint chain lock compatible with both mechanical keys and non-mechanical keys according to claim 2, characterized in that, The slider (11) is provided with an elastic positioning bead (17) on the side away from the steel ball (13), and the electric lock cap (5) is provided with a positioning groove (18) on the inner wall of the side away from the steel ball groove (14). The elastic positioning bead (17) can be engaged with the positioning groove (18).

5. A fingerprint chain lock compatible with both mechanical keys and non-mechanical keys according to claim 1, characterized in that, The mechanical locking mechanism includes a mechanical lock cylinder (19) rotatably disposed inside the mechanical lock cap (6). A key (20) is inserted into one side of the mechanical lock cylinder (19), and a mechanical lock pin (21) is fixedly disposed on the other side of the mechanical lock cylinder (19). The mechanical lock pin (21) can be inserted into the inside of the mechanical lock head (4).

6. A fingerprint chain lock compatible with both mechanical keys and non-mechanical keys according to claim 1, characterized in that, One side of the electric lock cap (5) and one side of the mechanical lock cap (6) are fixedly provided with a pivot pin that is connected to the chain (7).

7. A fingerprint chain lock compatible with both mechanical keys and non-mechanical keys according to claim 1, characterized in that, The outer wall of the lock body (1) is provided with a fingerprint cover (22), and the fingerprint cover (22) can cover the fingerprint module (2).

8. A fingerprint chain lock compatible with both mechanical keys and non-mechanical keys according to claim 1, characterized in that, The lock body (1) adopts a long strip structure, the lock body (1) is made of zinc alloy and stainless steel, and the chain (7) is made of stainless steel.

9. A fingerprint chain lock compatible with both mechanical keys and non-mechanical keys according to claim 1, characterized in that, The electric lock cap (5) has a mounting hole (23) on its side wall. The electric lock cap (5) can be inserted into the outside of the mechanical lock head (4) and fixedly connected by a pin.

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