Fingerprint padlock with mechanical emergency unlocking function

Abstract

The utility model discloses a fingerprint padlock with a mechanical emergency unlocking function, which comprises a lock body and a lock beam, and a locking component and an unlocking component are arranged in the lock body. The locking component comprises two lock pins moving laterally and a rotatable locking block located between the two lock pins, and an elastic element is arranged between the two lock pins so that the lock pins can tend to move towards the two sides. The lock beam is provided with a lock groove corresponding to the lock pin. The unlocking component comprises an electric unlocking mechanism and a mechanical emergency unlocking mechanism, and the electric unlocking mechanism and the mechanical emergency unlocking mechanism are both configured to act on the locking block to drive the locking block to rotate so as to unlock the lock pin; and in the locking state, a gap is formed between the mechanical emergency unlocking mechanism and the locking block, so that interference to the electric unlocking mechanism is avoided. According to the scheme, the working stability can be improved, and electric unlocking and manual unlocking cannot interfere with each other.

Description

Technical Field

[0001] The utility model relates to a lock, in particular to a fingerprint padlock with mechanical emergency unlocking. Background Art

[0002] With the development of smart lock technology, fingerprint locks have been widely used in padlocks in homes, offices and other scenarios because of their advantages of not needing to carry physical keys and being able to be quickly unlocked through biometrics, greatly improving the convenience and safety of use.

[0003] Existing fingerprint locks typically rely on batteries to power the internal electric components. However, if the battery runs out and the user doesn't have an emergency power source (such as a power bank) to temporarily power it, the fingerprint lock will be unable to unlock because the electric unlocking process cannot be activated, seriously affecting the user experience and the practicality of the lock.

[0004] To address this emergency unlocking issue, some solutions attempt to integrate manual unlocking mechanisms (such as keypad combination locks) into fingerprint locks, allowing for manual emergency unlocking if electric unlocking fails. However, manual unlocking mechanisms can hinder the proper operation of electric unlocking mechanisms, or the electric unlocking process can affect the stability of manual unlocking, ultimately reducing the reliability of the lock. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a fingerprint padlock with mechanical emergency unlocking, which can improve working stability and prevent electric unlocking and manual unlocking from interfering with each other.

[0006] To achieve the above-mentioned object, the present utility model provides the following technical solutions: A fingerprint padlock with mechanical emergency unlocking, comprising a lock body and a lock beam, wherein the lock body is provided with a locking component and an unlocking component;

[0007] The locking component includes two laterally movable locking pins and a rotatable locking block located between the two locking pins, and an elastic element is provided between the two locking pins to enable the locking pins to have a tendency to move to both sides;

[0008] The lock beam is provided with a lock groove corresponding to the lock pin;

[0009] The unlocking component includes an electric unlocking mechanism and a mechanical emergency unlocking mechanism, and the electric unlocking mechanism and the mechanical emergency unlocking mechanism are both configured to act on the locking block to drive it to rotate, thereby releasing the lock of the lock pin;

[0010] Wherein, in the locked state, a gap is provided between the mechanical emergency unlocking mechanism and the locking block to avoid interference with the electric unlocking mechanism.

[0011] As a further improvement of the present invention, the electric unlocking mechanism includes a driving unit, a cam and a movable top plate. The driving unit drives the cam to rotate to push the movable top plate, and the movable top plate drives the locking block to rotate.

[0012] As a further improvement of the present invention, the movable top plate and the locking block push the locking block to rotate by contact.

[0013] As a further improvement of the present invention, the cam is configured to be reset by a reset movement of the driving unit or the movable top plate.

[0014] As a further improvement of the present invention, the electric unlocking mechanism includes an authentication module, which controls the drive unit to operate after successful authentication.

[0015] As a further improvement of the present invention, the mechanical emergency unlocking mechanism includes a password input unit and an unlocking plate. When the password is correctly input, the unlocking plate moves under the elastic force of an elastic component to drive the locking block to rotate.

[0016] As a further improvement of the present invention, the matching structure of the lock pin and the lock slot is a triangular guide structure, which is configured to unlock the lock by pulling out the lock beam when the locking block is rotated to release the lock.

[0017] As a further improvement of the present invention, a reset button is further included. Pressing the reset button drives the locking block to reset to the locked position and also drives the unlocking plate and / or the movable top plate to reset to the initial position.

[0018] As a further improvement of the present invention, the locking block and the reset button are connected via a connecting spring. When the reset button is pressed down, the locking block is driven to rotate by the elastic force of the connecting spring.

[0019] As a further improvement of the present invention, a receiving groove is provided on the unlocking plate at a position corresponding to the movable top plate, and the receiving groove is adapted to the movable top plate. The movable top plate is located in the receiving groove and moves in the receiving groove. The unlocking plate and the outer shell of the lock body cooperate with each other to form a guiding effect on the movable top plate.

[0020] The beneficial effects of this utility model are that by providing an electric unlocking mechanism and a mechanical emergency unlocking mechanism, both of which can act on the locking block to unlock the padlock, the mechanical emergency unlocking mechanism can serve as a backup in the event that the electric mechanism fails, thereby improving emergency unlocking capabilities and enhancing practicality. In the locked state, the gap between the mechanical emergency unlocking mechanism and the locking block reduces interference with the electric unlocking mechanism, reduces the mutual influence of the two unlocking methods, and helps to improve the stability and reliability of the padlock operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model after removing the lock body;

[0023] Figure 3 This is a side view of the structure of the utility model after removing the lock body;

[0024] Figure 4 This is a schematic diagram of the structure of the electric unlocking mechanism of the present utility model;

[0025] Figure 5 It is a schematic diagram of the cross-sectional structure of the utility model;

[0026] Figure 6 for Figure 3 Enlarged view of part A in .

[0027] Figure numbers: 1. Lock body; 11. Locking component; 111. Lock pin; 112. Locking block; 113. Elastic element; 12. Unlocking component; 121. Electric unlocking mechanism; 1211. Driving unit; 1212. Cam; 1213. Moving top plate; 122. Mechanical emergency unlocking mechanism; 1221. Password input unit; 1222. Unlocking plate; 1223. Accommodating groove; 2. Lock beam; 21. Lock slot; 3. Reset button; 4. Elastic component. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings.

[0029] Reference Figure 1-6 As shown,

[0030] A fingerprint padlock with mechanical emergency unlocking includes a lock body 1 and a lock beam 2. The lock body 1 is provided with a locking component 11 and an unlocking component 12.

[0031] The locking component 11 includes two laterally movable locking pins 111 and a rotatable locking block 112 located between the two locking pins 111. An elastic element 113 is provided between the two locking pins 111 to allow the locking pins 111 to have a tendency to move to both sides.

[0032] The lock beam 2 is provided with a lock slot 21 corresponding to the lock pin 111;

[0033] The unlocking component 12 includes an electric unlocking mechanism 121 and a mechanical emergency unlocking mechanism 122 , both of which are configured to act on the locking block 112 to drive it to rotate, thereby releasing the lock on the lock pin 111 ;

[0034] In the locked state, a gap is provided between the mechanical emergency unlocking mechanism 122 and the locking block 112 to avoid interference with the electric unlocking mechanism 121 .

[0035] Inside the lock body 1, the two lock pins 111 are connected by an elastic element 113 (such as a spring). The elastic force of the elastic element 113 makes the two lock pins 111 always have a tendency to move to both sides; when the lock beam 2 is inserted into the lock body 1, the lock pin 111 is inserted into the lock groove 21 of the lock beam 2 under the action of the elastic element 113. At this time, the locking block 112 is at a specific angle, and its edge contacts the lock pin 111 to limit the lock pin 111 from moving inward, thereby locking the lock beam 2.

[0036] When the electric unlocking mechanism 121 or the mechanical emergency unlocking mechanism 122 is actuated, they can both contact the locking block 112 and drive it to rotate around its own rotation axis; after the locking block 112 rotates, its restrictive effect on the locking pin 111 is released, and the locking pin 111 can move inward under the external force of pulling out the lock beam 2, disengaging from the lock slot 21, thereby achieving unlocking.

[0037] In the locked state, a certain gap is maintained between the mechanical emergency unlocking mechanism 122 and the locking block 112. This gap prevents the mechanical emergency unlocking mechanism 122 from colliding or rubbing with the locking block 112 when the electric unlocking mechanism 121 drives the locking block 112 to rotate, thereby reducing interference with the electric unlocking action to a certain extent and improving the working stability when the two unlocking methods coexist.

[0038] Specifically, the electric unlocking mechanism 121 includes a driving unit 1211 , a cam 1212 and a movable top plate 1213 . The driving unit 1211 drives the cam 1212 to rotate to push the movable top plate 1213 , and the movable top plate 1213 drives the locking block 112 to rotate.

[0039] In the electric unlocking mechanism 121 , the driving unit 1211 can be a micro motor, whose output shaft is fixedly connected to the cam 1212 , and the side of the cam 1212 away from the motor contacts the movable top plate 1213 , and the end of the movable top plate 1213 away from the cam 1212 can contact the locking block 112 .

[0040] When the electric unlocking is triggered, the driving unit 1211 (motor) rotates and drives the cam 1212 to rotate synchronously; during the rotation of the cam 1212, its raised part gradually pushes the movable top plate 1213 to move along the guide structure inside the lock body 1; when the movable top plate 1213 moves, its end away from the cam 1212 contacts the locking block 112 and pushes the locking block 112 to rotate, thereby releasing the lock pin 111.

[0041] Through the multi-stage transmission structure of the drive unit 1211, the cam 1212, and the movable top plate 1213, the rotational motion of the motor is converted into the linear motion of the movable top plate 1213, and then converted into the rotation of the locking block 112. The transmission path is clear, which improves the reliability of the electric unlocking action to a certain extent. At the same time, it is convenient to control the stroke of the movable top plate 1213 by adjusting the profile of the cam 1212 to adapt to different unlocking requirements.

[0042] The movable top plate 1213 itself has a small volume requirement and can be moved using a thin sheet structure, so the interference generated is also small, which can make the unlocking action more stable.

[0043] The movable top plate 1213 and the locking block 112 can be directly connected by a hinge.

[0044] In a preferred embodiment, the movable top plate 1213 and the locking block 112 are in contact with each other to push the locking block 112 to rotate.

[0045] When the movable top plate 1213 moves under the push of the cam 1212, its arc-shaped contact surface directly contacts the contact portion of the locking block 112. As the movable top plate 1213 continues to move, the thrust generated by the contact point drives the locking block 112 to rotate around its own rotation axis.

[0046] The contact push method is adopted, which can simplify the structure, make installation easy and ensure stable operation.

[0047] In order to facilitate the resetting of the cam 1212 , the cam 1212 is configured to be reset by a resetting movement of the driving unit 1211 or the moving top plate 1213 .

[0048] The driving unit 1211 (motor) can reset the cam 1212 by reverse rotation. When the driving unit 1211 (motor) can be rotated by external force, it can also be configured to reset the cam 1212 when the top plate 1213 is reset.

[0049] Two reset methods can be selected according to the internal space and design requirements of the lock body 1, which increases the flexibility of the structural design; no matter which method is adopted, the cam 1212 can be returned to the initial position, preparing for the pushing action during the next electric unlocking, and to a certain extent ensuring the cyclic availability of electric unlocking.

[0050] As a solution for convenient identification, the electric unlocking mechanism 121 includes an authentication module, which controls the drive unit 1211 to operate after successful authentication.

[0051] The authentication module can be a conventional fingerprint recognition module or face recognition module.

[0052] Specifically, the mechanical emergency unlocking mechanism 122 includes a password input unit 1221 and an unlocking plate 1222 . When the password is correctly input, the unlocking plate 1222 moves under the elastic force of an elastic component 4 to drive the locking block 112 to rotate.

[0053] In the mechanical emergency unlocking mechanism 122, the password input unit 1221 is a plurality of buttons, which form a password combination with the unlocking plate 1222. The elastic component 4 can optionally use a reset spring, one end of which is connected to the unlocking plate 1222 and the other end abuts against the lock body 1. Under normal circumstances, the elastic component 4 is in a compressed state.

[0054] When the correct password is not entered, the limit structure of the button jams the unlocking plate 1222, preventing it from moving; when the user presses the correct password (enters it correctly), the button drives the limit structure to disengage from the unlocking plate 1222, and the unlocking plate 1222 moves along the slide rail toward the locking block 112 under the elastic force of the elastic component 4; during the movement of the unlocking plate 1222, its end contacts the locking block 112 and pushes the locking block 112 to rotate, thereby releasing the lock on the lock pin 111.

[0055] This mechanical emergency unlocking method does not rely on battery power and can be used when the electric unlocking fails due to power outage, thereby improving the emergency availability of the lock; at the same time, the structure of the elastic component 4 driving the unlocking plate 1222 to move is simple and not prone to failure, thereby ensuring the reliability of emergency unlocking to a certain extent.

[0056] Based on the further optimization of the above structure, a receiving groove 1223 is provided on the unlocking plate 1222 at a position corresponding to the movable top plate 1213, and the receiving groove 1223 is adapted to the movable top plate 1213. The movable top plate 1213 is located in the receiving groove 1223 and moves in the receiving groove 1223. The unlocking plate 1222 and the outer shell of the lock body 1 cooperate with each other to form a guiding effect on the movable top plate 1213.

[0057] A receiving groove 1223 is provided on the side of the unlocking plate 1222 facing the movable top plate 1213. The width and depth of the receiving groove 1223 are adapted to the size of the movable top plate 1213. Part of the structure of the movable top plate 1213 is embedded in the receiving groove 1223. The side surface of the unlocking plate 1222 is fitted with the inner wall of the outer shell of the lock body 1, and a guide channel along the moving direction of the unlocking plate 1222 is formed therebetween, and the movable top plate 1213 can slide along the channel.

[0058] When electrically unlocked, the movable top plate 1213 moves along the guide channel (formed by the unlocking plate 1222 and the outer shell) in the accommodating groove 1223 under the push of the cam 1212, pushing the locking block 112 to rotate; when mechanically unlocked, the inner wall of the accommodating groove 1223 will not interfere with the movable top plate 1213 during the movement of the unlocking plate 1222, ensuring that the unlocking plate 1222 can smoothly drive the locking block 112 to rotate.

[0059] The setting of the accommodating groove 1223 and the guide channel limits the movement direction of the movable top plate 1213, reduces its deviation or shaking, and improves the stability of electric unlocking to a certain extent; at the same time, the accommodating groove 1223 makes the structure of the unlocking plate 1222 and the movable top plate 1213 more compact, reduces the internal space occupied by the lock body 1, and avoids mutual interference between the two when they move.

[0060] Furthermore, the movement of the top plate 1213 can be stabilized by means of the receiving groove 1223 on the unlocking plate 1222 .

[0061] In a further configuration, pressing the reset button 3 drives the locking block 112 to reset to the locked position, and also drives the unlocking plate 1222 and / or the movable top plate 1213 to reset to the initial position.

[0062] The reset button 3 is mounted on the surface of the lock body 1 , with one end extending into the interior of the lock body 1 , and can form a linkage (such as through a connecting rod or contact fit) with the locking block 112 , the unlocking plate 1222 , and the movable top plate 1213 .

[0063] When the user reinserts the lock beam 2 into the lock body 1, the lock pin 111 is inserted into the lock slot 21 under the action of the elastic element 113. At this time, the reset button 3 is pressed, and the reset button 3 moves toward the inside of the lock body 1. It contacts the locking block 112 and pushes the locking block 112 to rotate in the opposite direction, so that the locking block 112 returns to the locked position that restricts the movement of the lock pin 111; at the same time, the reset button 3 can push the unlocking plate 1222 through the contact or transmission structure to overcome the elastic force of the elastic component 4 and return to the initial position (the position stuck by the button limiting structure), and / or push the movable top plate 1213 back to the initial position not pushed by the cam 1212. When the reset button 3 pushes the movable top plate 1213 to reset, it can also be driven by pushing the locking block 112 to rotate in the opposite direction and using the locking block 112 to push the movable top plate 1213 to reset.

[0064] The setting of the reset button 3 enables the lock to quickly return to the locked state after being unlocked and prepare for the next unlocking, reducing the user's operation steps and improving the convenience of using the lock to a certain extent.

[0065] Preferably, the locking block 112 and the reset button 3 are connected via a connecting spring. When the reset button 3 is pressed down, the locking block 112 is driven to rotate by the elastic force of the connecting spring.

[0066] When the user presses the reset button 3, the reset button 3 moves toward the inside of the lock body 1, and the connecting spring is further compressed. The elastic force generated by it pushes the locking block 112 to rotate in the opposite direction around the rotation axis, so that the locking block 112 returns to the locked position; after releasing the reset button 3, the elastic force of the connecting spring can assist the reset button 3 to rebound to the initial extended state.

[0067] The elastic transmission of the connecting spring makes the force exerted by the reset button 3 on the locking block 112 softer, reduces the wear of both caused by hard contact, and extends the service life of the components to a certain extent. At the same time, the deformation of the spring can adapt to certain assembly errors and improve the fault tolerance of the structure, especially the connection relationship of the locking block 112 that will produce rotational movement. At this time, the spring can maintain the transmission of force and maintain relative matching stability. Preferably, grooves are provided on both the locking block 112 and the reset button 3, which can be used for the end of the spring to be inserted, thereby stabilizing the compression and release effects of the spring.

[0068] The aforementioned cooperation between the lock pin 111 and the lock slot 21 can specifically adopt the following scheme: the cooperation structure of the lock pin 111 and the lock slot 21 is a triangular guiding structure, which is configured to unlock by pulling out the lock beam 2 when the locking block 112 rotates to release the lock.

[0069] A triangular protrusion is provided on one end of the lock pin 111 facing the lock slot 21 , and a triangular groove is provided on the lock slot 21 on the lock beam 2 , and the angles of the triangular slopes of the two are adapted to each other.

[0070] When the lock is in the locked state, the triangular protrusion of the lock pin 111 is inserted into the triangular groove of the lock slot 21, and the locking block 112 restricts the movement of the lock pin 111; when the locking block 112 is rotated to unlock, when the user pulls out the lock beam 2, the triangular inclined surface of the lock slot 21 will contact the triangular inclined surface of the lock pin 111 and generate a lateral force. This lateral force pushes the lock pin 111 to overcome the elastic force of the elastic element 113 and move inward, so that the lock pin 111 gradually disengages from the lock slot 21, making it easier for the lock beam 2 to be pulled out smoothly.

[0071] The triangular guiding structure converts the pulling force of the lock beam 2 into the lateral movement force of the lock pin 111 through the cooperation of the inclined surfaces, making the unlocking process smoother, reducing the jamming between the lock pin 111 and the lock slot 21, and improving the user's unlocking experience to a certain extent.

[0072] The above are only preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A fingerprint padlock with mechanical emergency unlocking, comprising a lock body and a lock beam, wherein the lock body is provided with a locking component and an unlocking component, characterized in that: The locking component includes two laterally movable locking pins and a rotatable locking block located between the two locking pins, and an elastic element is provided between the two locking pins to make the locking pins tend to move to both sides; a lock groove corresponding to the locking pin is provided on the lock beam; the unlocking component includes an electric unlocking mechanism and a mechanical emergency unlocking mechanism, and the electric unlocking mechanism and the mechanical emergency unlocking mechanism are both configured to act on the locking block to drive it to rotate, thereby releasing the lock of the locking pin; wherein, in the locked state, a gap is provided between the mechanical emergency unlocking mechanism and the locking block to avoid interference with the electric unlocking mechanism.

2. The fingerprint padlock according to claim 1, characterized in that: The electric unlocking mechanism includes a driving unit, a cam and a movable top plate. The driving unit drives the cam to rotate to push the movable top plate, and the movable top plate drives the locking block to rotate.

3. The fingerprint padlock according to claim 2, characterized in that: The movable top plate and the locking block push the locking block to rotate by contacting each other.

4. The fingerprint padlock according to claim 2, characterized in that: The cam is configured to be reset by a reset movement of the drive unit or the moving top plate.

5. The fingerprint padlock according to claim 2, characterized in that: The electric unlocking mechanism includes an authentication module, which controls the action of the driving unit after successful authentication.

6. The fingerprint padlock according to claim 2, 3, 4 or 5, characterized in that: The mechanical emergency unlocking mechanism includes a password input unit and an unlocking plate. When the password is correctly input, the unlocking plate moves under the elastic force of an elastic component to drive the locking block to rotate.

7. The fingerprint padlock according to claim 1, 2, 3, 4 or 5, characterized in that: The matching structure of the lock pin and the lock slot is a triangular guide structure, which is configured to unlock the lock by pulling out the lock beam when the locking block is rotated to release the lock.

8. The fingerprint padlock according to claim 6, characterized in that: It also includes a reset button, which is pressed to drive the locking block to reset to the locked position and also drives the unlocking plate and / or the movable top plate to reset to the initial position.

9. The fingerprint padlock according to claim 8, characterized in that: The locking block and the reset button are connected via a connecting spring. When the reset button is pressed down, the locking block is driven to rotate by the elastic force of the connecting spring.

10. The fingerprint padlock according to claim 6, characterized in that: The unlocking plate is provided with a receiving groove at a position corresponding to the movable top plate, and the receiving groove is adapted to the movable top plate. The movable top plate is located in the receiving groove and moves in the receiving groove. The unlocking plate and the outer shell of the lock body cooperate with each other to form a guiding effect on the movable top plate.

Images