A padlock having a double opening lock cylinder

Abstract

A double opening lock core padlock comprises a lock beam, a lock bolt assembly, a password rotating wheel group, a lock core assembly and a shell, the lock beam is fixedly connected with the inside of the shell through a lock beam clamp, one side of the lock bolt assembly abuts against the lock hook of the lock beam, a lock bolt torsion spring is arranged on the lock bolt assembly, and the password rotating wheel group is arranged below the lock bolt assembly, the lock core assembly is connected with a lock bolt push piece, the padlock is provided with both a password unlocking mechanism and a key unlocking mechanism on the lock body, so that the padlock has two unlocking modes of password and key. When a user forgets the password, the padlock can be unlocked through the key unlocking mechanism, when the key is lost, the padlock can also be unlocked through the password unlocking mechanism, more unlocking options are provided for the user, the convenience and flexibility of use are increased, the situation that the padlock cannot be unlocked due to forgotten password or lost key is effectively avoided, and different use requirements and scenes are adapted.

Description

Technical Field

[0001] This utility model relates to the field of lock technology, and in particular to a padlock with a double-opening lock cylinder. Background Technology

[0002] Padlocks are commonly used locks in daily life and work. Traditional padlocks usually only have a single unlocking method: combination lock or key lock. If a padlock with only a combination lock is forgotten, the user will face the dilemma of being unable to unlock it; if a padlock with only a key lock is lost, the lock will also be unable to be opened, causing many inconveniences to the user and making it difficult to meet the needs of different scenarios. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a double-opening lock cylinder padlock.

[0004] The present invention adopts the following specific solution: A double-opening padlock includes a lock beam, a bolt assembly, a combination wheel assembly, a lock cylinder assembly, and a housing. The lock beam is fixedly connected to the interior of the housing via a lock beam latch. One side of the bolt assembly abuts against the lock hook of the lock beam. The bolt assembly is equipped with a bolt torsion spring, and the combination wheel assembly is located below the bolt assembly. The lock cylinder assembly is connected to a bolt lever. The bolt lever abuts against the bolt assembly. As the key in the lock cylinder assembly is turned, it drives the bolt lever, which in turn pushes the bolt assembly to unlock. The bolt assembly is movably connected to the housing via a fixed shaft and can rotate axially. One end of the bolt torsion spring on the bolt assembly abuts against the inner side of the housing. After unlocking via the combination wheel assembly, as the lock beam is pulled upward, the lock hook drives the bolt assembly to rotate, thus unlocking. After the lock hook disengages from the bolt assembly, the bolt assembly returns to its original position by the bolt torsion spring.

[0005] Furthermore, the latch assembly is equipped with a movable latch, which is connected to a return spring, and the bottom of the latch assembly is equipped with a latch limiting angle. The movable latch is equipped with a first guide post, which abuts against the latch lever. The latch lever pushes the movable latch to move, thereby unlocking the lock cylinder assembly; the latch limiting angle cooperates with the combination wheel assembly to unlock the combination wheel.

[0006] Furthermore, the combination wheel assembly includes a combination wheel, a first combination plate, a second combination plate, and a third combination plate. Each combination plate has a limiting post and a locking tongue limiting groove. The combination plates are fitted onto the wheel assembly shaft, with washers between them. One end of the wheel assembly shaft is equipped with a wheel assembly spring. Each of the three combination plates has a limiting post and a limiting groove. The first combination plate has a limiting post for interaction with the second combination plate. The second and third combination plates have limiting posts on both sides for linkage between the combination plates. When the first, second, or third combination plate rotates incorrectly, they will rotate in tandem to misalign the three grooves. When the three combination plates of the combination wheel assembly rotate correctly, the three grooves align, forming a space to accommodate the locking tongue limiting angle. At this point, as the lock beam is pulled, the locking tongue assembly can rotate, enabling the combination wheel to unlock.

[0007] Furthermore, the outer shell includes an inner shell, an inner shell back plate, and an outer shell back plate. The inner shell contains a structure for fixing a lock beam, a lock tongue assembly, a combination wheel assembly, and a lock cylinder assembly. The outer shell, the inner shell back plate, and the outer shell back plate have various openings.

[0008] The beneficial effects of this invention through the above solution are as follows: by simultaneously setting a combination lock mechanism and a key lock mechanism on the lock body, the padlock possesses both combination and key unlocking methods. When the user forgets the combination, the key lock mechanism can be used to unlock the lock; when the key is lost, the combination lock mechanism can be used to unlock the lock, providing users with more unlocking options, increasing convenience and flexibility, effectively avoiding situations where the lock cannot be opened due to forgotten combination or lost key, and adapting to different usage needs and scenarios. Attached Figure Description

[0009] Figure 1 This is a front view of the present utility model; Figure 2 This is a rear view of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 This is a rear view of the cover of this utility model; Figure 5 This is a front view of the internal structure of this utility model; Figure 6 This is a rear view of the internal structure of this utility model; Figure 7 This is a structural diagram of the password wheel assembly of this utility model; Figure 8 This is a structural diagram of the lever mechanism of the lock cylinder assembly of this utility model; Figure 9 This is a structural diagram of the inner shell of this utility model; Figure 10 This is a schematic diagram showing the contact between the locking tongue torsion spring and the outer shell of this utility model; The numbers marked in the diagram represent the following components in sequence: 1-Combination wheel, 2-Outer shell, 3-Inner shell, 4-Lock tongue torsion spring, 5-Lock tongue assembly, 6-Lock beam, 7-Lock beam clip, 8-Rotating wheel spring, 9-Combination wheel assembly, 10-Lock cylinder assembly, 11-Inner shell back plate, 12-Outer shell back plate, 13-Lock tongue lever, 14-Lock cylinder, 15-Lock tongue limiting angle, 16-Reset spring, 17-Moving lock tongue, 18-Limiting groove, 19-First combination plate, 20-Second combination plate, 21-Third combination plate, 22-Limiting post, 23-Washer, 24-First guide post, 25-Second guide post. Detailed Implementation

[0010] The present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

[0011] Attached Figure

[0012] The combination unlocking mechanism comprises a combination wheel 1, a torsion spring 4, a bolt assembly 5, a rotating wheel spring 8, a lock beam 6, and a combination rotating wheel assembly 9, all working together. Rotating the combination wheel 1 clockwise more than two revolutions causes the third combination piece 21 to be linked by the interaction of the limiting posts 22 between the combination pieces, adjusting the position of the limiting groove 18 on the third combination piece 21. Then, rotating it counterclockwise more than 360° adjusts the position of the limiting groove 18 on the second combination piece 20. Finally, rotating it clockwise adjusts the position of the limiting groove 18 on the first combination piece 19, ensuring that the limiting grooves 18 of the three combination pieces are aligned (each combination piece can be adjusted within a single 360° revolution; exceeding this range will cause adjacent combination pieces to change the position of their upper limiting grooves 18 via the limiting posts 22). Then, pulling the lock beam 6 upwards causes the bolt limiting angle 15 of the bolt assembly 5 to rotate counterclockwise towards the limiting groove 18 and engage with it. Pulling the lock beam 6 upwards unlocks the lock. After unlocking, the lock tongue torsion spring 4 hooks the second guide post, resetting the lock tongue assembly 5.

[0013] The key unlocking mechanism is located on the back of the lock body. After the key is inserted into the lock cylinder assembly 10 and the lock cylinder tumbler is successfully matched with the key, the lock cylinder 14 is rotated clockwise, which drives the bolt lever 13 to move counterclockwise. This, in turn, pushes the movable bolt 17 in the bolt assembly 5 to retract through the first guide post 24, thus unlocking the lock. After unlocking, the bolt return spring 16 will reset the movable bolt 17 to its original position.

[0014] The above specific embodiments are used to explain and illustrate the present utility model, and are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made to the present utility model within the spirit and protection scope of the claims shall fall within the protection scope of the present utility model.

Claims

1. A double-opening padlock, characterized in that, The lock includes a lock beam, a lock tongue assembly, a combination wheel assembly, a lock cylinder assembly, and a housing. The lock beam is fixedly connected to the interior of the housing via a lock beam clip. One side of the lock tongue assembly abuts against the lock hook of the lock beam. The lock tongue assembly is equipped with a lock tongue torsion spring, and the combination wheel assembly is located below the lock tongue assembly. The lock cylinder assembly is connected to a lock tongue lever, and the lock tongue lever abuts against the lock tongue assembly.

2. A double-opening padlock as described in claim 1, characterized in that, The latch assembly is provided with a movable latch, which is connected to a return spring, and the bottom of the latch assembly is provided with a latch limiting angle.

3. A double-opening padlock as described in claim 1, characterized in that, The combination wheel assembly includes a combination wheel, a first combination plate, a second combination plate, and a third combination plate. Each combination plate has a limiting post and a locking tongue limiting groove, and a gasket is provided between the combination plates.

4. A double-opening padlock as described in claim 1, characterized in that, The outer shell is provided with an inner shell, an inner shell back plate, and an outer shell back plate.

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